CN105402443A - Multi-way control air valve - Google Patents
Multi-way control air valve Download PDFInfo
- Publication number
- CN105402443A CN105402443A CN201510957418.6A CN201510957418A CN105402443A CN 105402443 A CN105402443 A CN 105402443A CN 201510957418 A CN201510957418 A CN 201510957418A CN 105402443 A CN105402443 A CN 105402443A
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- China
- Prior art keywords
- gas
- valve body
- interface
- air
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
Abstract
The invention belongs to control air valves, and particularly provides a multi-way control air valve. The multi-way control air valve comprises a valve body, an air inlet connector arranged at the lower end of the valve body, air exhausting holes, reversing valve elements and pressure-reducing valve elements, wherein the reversing valve elements and the pressure-reducing valve elements are axially arranged at intervals in the valve body and are controlled by control handles to axially displace; first blocking sealing devices are correspondingly arranged below the reversing valve elements and the pressure-reducing valve elements; working ports in an inner chamber of the valve body include a lifting port, a lowering port, an opening port and a closing port; each working port communicates with each first sealing device through an air way; three reversing valve elements and one pressure-reducing valve element correspondingly fit the corresponding stations of the control handles; two sides of a pneumatic mechanism in a pneumatic switch which is fixed to the valve body communicate with the opening port and the closing port through pneumatic channels; two ends of an air-tight mechanism in the pneumatic switch communicate with each first sealing device through air way channels. The multi-way control air valve can solve the technical problems in the prior art, such as that the structure is loose and the mis-operation is easily caused; the multi-way control air valve has the advantages of being compact in structure, small in potential risk, and low in mis-operation rate.
Description
Technical field
The invention belongs to control air valve, refer to a kind of multi-channel control air valve especially.
Background technique
Existing dumping car is after dispatching from the factory, for realizing the control in the opening-closing process of carriage lifting, decline and car door, usually refitting factory is needed to install corresponding control gear additional, the realization of above-mentioned functions generally adopts two groups of independently Pneumatic reversal valves at present, for the use of supporting two groups of Pneumatic reversal valves, needs are corresponding supporting has two covers independently to control air valve, controls the both sides that air valve must be installed on dumping car operator cabin main driving position.Above-mentioned prior art Problems existing one is limited space in operator cabin, and for the ease of operator's operation, the installing space controlling air valve is then more narrow, causes driver to pass in and out operator cabin inconvenience simultaneously; Two is due to two modes controlling air valve and all adopt handle to control, very easily because driver's operation error (comprising the factors such as driver's false hit, function error in judgement, clothing or other article scratchings) causes the damage controlling air valve in comparatively narrow space, more seriously in vehicle maintenance, load or working procedure as because of misoperation cause compartment decline or railway carriage or compartment door closure state under carriage lifting time, very easily cause accident maintenance man being formed to danger or vehicle rollover.
The patent literature adopting multi-channel control is had at present in Hydraulic guide control valve, but due to Hydraulic guide control valve with control air valve all there is larger difference in many-sides such as application, steering force, sealing configuration, transmission medium, making material, small product size, said structure therefore and be not suitable for dumping car control air valve.
Goal of the invention
The invention provides a kind of compact structure, be convenient to the multi-channel control air valve of control.
Overall structure of the present invention is:
Multi-channel control air valve, comprise valve body, be opened in air input joint and the exhaust port of valve body lower end, axially arrange and be spaced in valve body, controlled axial displacement by Joystick changeover valve core, relief pressure valve cartridge, be respectively equipped with the first plug for seal device below changeover valve core, relief pressure valve cartridge, body cavity offers working interface; Working interface comprises lifting interface, decline interface, unlock interface, down interface, each working interface is communicated with each first seal arrangement respectively by gas circuit, three changeover valve cores and relief pressure valve cartridge respectively with the station adaptation of four corresponding to Joystick, valve body is fixed with air control switch, pneumatic mechanism both sides on air control switch are communicated with unlock interface and down interface respectively by gas control passage, and the tight mechanism two ends in air control switch above air input joint are communicated with each first seal arrangement respectively by gas channels.
Concrete structure of the present invention is:
In the present invention, the preferred structural design of corresponding relation of changeover valve core, relief pressure valve cartridge and each station is, described changeover valve core respectively with the lifting of Joystick, that railway carriage or compartment door is opened, railway carriage or compartment door closes three stations is corresponding, relief pressure valve cartridge is corresponding with the decline station of Joystick
For ease of realizing the operation of Joystick, be convenient to the layout simplifying each station, meet the protection to valve body inner member simultaneously, preferred structural design is, described valve body upper surface is arranged handles lid, handle lid by its surface offer adaptive with Joystick bottom in cross location groove, four end points corresponding lifting respectively of location groove, decline, railway carriage or compartment door are opened, railway carriage or compartment door closes four stations.
For ease of realizing Joystick location in operation, the station avoiding misoperation or cause because operating mode is unstable switches by mistake, preferred structural design is, also comprise a self-locking mechanism, this self-locking mechanism comprises elastic sleeve and is loaded on grip on Joystick, be opened in the first location counterbore at groove criss-crossing position, location, the location groove end points of corresponding decline station offers the second location counterbore, and the first location counterbore, the second location counterbore and grip lower end are adaptive.
For ease of realizing the control of Joystick to changeover valve core and relief pressure valve cartridge, simplified structure design simultaneously, preferred technical implementation way is, changeover valve core and relief pressure valve cartridge are by being connected to its axial displacement of cam production below Joystick.
Because station is four, be the cross station manipulation of corresponding Joystick, preferred structural design is, described cam selects cross cam.
For realizing the driving of changeover valve core corresponding to cam and each station, relief pressure valve cartridge preferably, be convenient to Joystick to control and adaptive with manipulation interior surface simultaneously, preferred structural design is, described cam entirety is spherical in shape, is cambered surface or the spheric structure of the changeover valve core corresponding with each station and relief pressure valve cartridge adaptation bottom cam.
Layout for ease of each working interface and pipeline is compacter, preferred structural design is, described valve body is section is rectangle or foursquare quadrangular structure, and decline interface, unlock interface, down interface, lifting interface are opened on the drift angle place, valve body bottom surface between four stations respectively.
The preferred structural design of air control switch is, described air control switch comprises switching valve body, switching valve body inner chamber is stage cavity, be located at the shutoff at switching valve body top, wherein pneumatic mechanism comprises in the stage cavity of shutoff lower surface and is provided with the radially-outer surface airtight gas piston that is slidably matched and switch plunger tip with its inwall respectively from top to bottom, the upper end of switch plunger tip and gas piston cavity are set with and are slidably matched, switch dome in-core chamber hollow, its upper end open connects the stage cavity between vent piston and switch plunger tip, its lower ending opening is in switch plunger tip lower end surface, tight mechanism is the second seal arrangement be provided with in the stage cavity below switch plunger tip, stage cavity bottom is provided with air input joint.
Gas channels and the preferred structural design of gas control passage are, gas channels comprises the first gas channels, the second gas channels, stage cavity connects wherein between first gas channels one end and switch plunger tip and the second seal arrangement, the first gas channels the other end and lifting, the first seal arrangement inner space corresponding to decline station, second gas channels one end open in the stage cavity of the second seal arrangement bottom, the second gas channels the other end with unlatching, close the first seal arrangement inner space corresponding to station; Gas control passage comprises the first gas control passage, the second gas control passage, wherein the first gas control passage end is opened in the stage cavity above gas piston, the first gas control passage the other end is communicated with unlock interface, second gas control passage end is opened in the Seal cage that switch plunger tip and stage cavity formed, and the second gas control passage the other end is communicated with down interface.
The substantive distinguishing features that the present invention possesses and the remarkable technological progress obtained are:
1, the present invention adopts air control switch, effectively achieves the cut-out to compressed gas source under the door closure state of railway carriage or compartment, thus fundamentally avoids the potential safety hazard because misoperation causes driver, maintenance man.
2, the present invention adopts multi-channel control form, integrated multiple control air valve function is integrated, make the structure of control air valve compacter, reduce the requirement to installing space and position, install more convenient, quick, the structural design of monolever effectively reduces because the factors such as driver's false hit, clothing or other article scratchings cause the risk controlling air valve and damage.
3, adopt the control mode of criss-crossing formula, handling easier and improve the accuracy of operation, effectively reducing because operating the possibility easily causing selection wrong in the same way.
4, adopt section to be rectangle or foursquare four prism type valve body, and the interval symmetric configuration of auxiliary process hole and each station, be convenient to processing and while simplifying gas channels, rational and efficient use space, layout is compacter.
Accompanying drawing explanation
Accompanying drawing of the present invention has:
Fig. 1 is outline drawing of the present invention.
Fig. 2 is the A-A direction view of Fig. 1.
Fig. 3 is the B-B direction view of Fig. 2.
Fig. 4 is the C-C direction view of Fig. 2.
Fig. 5 is the D-D direction view of Fig. 2.
Fig. 6 is the worm's eye view of Fig. 1.
Reference character in accompanying drawing is as follows:
1, groove is located; 2, socket head screw; 3, Joystick; 4, grip; 5, the first location counterbore; 6, the second location counterbore; 7, lid is handled; 8, relief pressure valve cartridge; 9, shutoff; 10, valve body; 11, the first seal arrangement; 12, cam; 13, switching valve body; 14, gas piston; 15, switch plunger tip; 16, the first gas channels; 17, the second seal arrangement; 18, air input joint; 19, exhaust port; 20, changeover valve core; 21, the second gas channels; 22, the first gas control passage; 23, the second gas control passage; 24, decline interface; 25, unlock interface; 26, down interface; 27, lifting interface.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further; but it is not as a limitation of the invention; the content that protection scope of the present invention is recorded with claim is as the criterion, any according to the equivalent technical elements replacement done by specification, does not all depart from protection scope of the present invention.
The overall technology structure of the present embodiment is as diagram, comprise valve body 10, be opened in the air input joint 18 on valve body 10 and exhaust port 19, axially arrange and be spaced in valve body 10, controlled axial displacement by Joystick 3 changeover valve core 20, relief pressure valve cartridge 8, be respectively equipped with the first plug for seal device 11 below changeover valve core 20, relief pressure valve cartridge 8, valve body 10 inner chamber offers working interface, working interface comprises lifting interface 27, decline interface 24, unlock interface 25, down interface 26, each working interface is communicated with each first seal arrangement 11 respectively by gas circuit, three changeover valve cores 20 and relief pressure valve cartridge 8 respectively with four station adaptations corresponding to Joystick 3, valve body 10 is fixed with air control switch by socket head screw 2, pneumatic mechanism both sides on air control switch are communicated with unlock interface 25 and down interface 26 respectively by gas control passage, tight mechanism two ends in air control switch above air input joint 18 are communicated with each first seal arrangement 11 respectively by gas channels.
Described changeover valve core 20 respectively with the lifting of Joystick 3, that railway carriage or compartment door is opened, railway carriage or compartment door closes three stations is corresponding, relief pressure valve cartridge 8 is corresponding with the decline station of Joystick 3
Described valve body 10 upper surface is arranged handles lid 7, handle lid 7 by its surface offer adaptive with Joystick 3 bottom in cross location groove 1, four end points corresponding lifting respectively of location groove 1, decline, railway carriage or compartment door are opened, railway carriage or compartment door closes four stations.
Also comprise a self-locking mechanism, this self-locking mechanism comprises elastic sleeve and is loaded on grip 4 on Joystick 3, be opened in the first location counterbore 5 at groove 1 criss-crossing position, location, location groove 1 end points of corresponding decline station offers the second location counterbore 6, first and locates counterbore 5, second location counterbore 6 and grip 4 lower end adaptation.
Changeover valve core 20 and relief pressure valve cartridge 8 control its axial displacement by the cam 12 be connected to below Joystick 3, and described cam 12 selects cross cam.
Described cam 12 is overall spherical in shape, and its top is adaptive with manipulation lid 7 internal surface sphere, is cambered surface or the spheric structure of the changeover valve core 20 corresponding with each station and relief pressure valve cartridge 8 adaptation bottom cam 12.
Described valve body 10 is rectangle or foursquare quadrangular structure in section, and decline interface 24, unlock interface 25, down interface 26, lifting interface 27 are opened on the drift angle place, valve body 10 bottom surface between four stations respectively.
Described air control switch comprises switching valve body 13, switching valve body 13 inner chamber is stage cavity, be located at the shutoff 9 at switching valve body 13 top, wherein pneumatic mechanism comprises in the stage cavity of shutoff 9 lower surface and is provided with the radially-outer surface airtight gas piston 14 that is slidably matched and switch plunger tip 15 with its inwall respectively from top to bottom, the upper end of switch plunger tip 15 and gas piston 14 inner chamber are set with and are slidably matched, switch plunger tip 15 inner chamber hollow, its upper end open connects the stage cavity between vent piston 14 and switch plunger tip 15, its lower ending opening is in switch plunger tip 15 lower end surface, tight mechanism is the second seal arrangement 17 be provided with in the stage cavity below switch plunger tip 15, stage cavity bottom is provided with air input joint 18.
Gas channels comprises the first gas channels 16, second gas channels 21, stage cavity connects wherein between first gas channels 16 one end and switch plunger tip 15 and the second seal arrangement 17, first gas channels 16 the other end and lifting, the first seal arrangement 11 inner space corresponding to decline station, second gas channels 21 one end open in the stage cavity of the second seal arrangement 17 bottom, second gas channels 21 the other end with unlatching, close the first seal arrangement 11 inner space corresponding to station; Gas control passage comprises the first gas control passage 22, second gas control passage 23, wherein in the stage cavity of the first gas control passage 22 one end open above gas piston 14, first gas control passage 22 the other end is communicated with unlock interface 25, second gas control passage 23 one end open is in the Seal cage that switch plunger tip 15 and stage cavity are formed, and second gas control passage 23 the other end is communicated with down interface 26.
Be described below according to the working procedure of station to the present embodiment below:
1, railway carriage or compartment door is opened
When promotion Joystick 3 to railway carriage or compartment, door opens station, under cam 12 acts on, the changeover valve core 20 corresponding with this station moves down, back down the first corresponding with it seal arrangement, pressurized air is entered by air input joint 18, and is entered into by the second gas channels 21, first seal arrangement 11 inner chamber, gas circuit successively and to open the corresponding unlock interface of station 25 with railway carriage or compartment door and control railway carriage or compartment door and open; Simultaneously pressurized air enters into the stage vestibule on gas piston 14 top through the first gas control passage 22 and promotes gas piston 14 and move down, and drives switch plunger tip 15 to move down and backs down the second seal arrangement 17; In the stage vestibule that pressurized air is entered between gas piston 14 and switch plunger tip 15 through switch plunger tip 15 inner chamber by the stage vestibule on the second seal arrangement 17, downward active force is formed to switch plunger tip 15, switch plunger tip 15 is made to keep backing down the working state of the second seal arrangement 17 when losing gas piston 14 active force, first gas channels 16 and air input joint 18 conducting, pressurized air enters and lifting, the first seal arrangement 11 inner chamber that decline station is corresponding.
2, carriage lifting
When promotion Joystick 3 to carriage lifting station, under cam 12 acts on, the changeover valve core 20 corresponding with this station moves down, back down the first corresponding with it seal arrangement 11, pressurized air enters by through air input joint 18, and is entered into the lifting interface 27 corresponding with carriage lifting station controlled carriage lifting by the first gas channels 16, first seal arrangement 11 inner chamber, gas circuit successively.
3, compartment declines
When promotion Joystick 3 to compartment decline station, under cam 12 acts on, the relief pressure valve cartridge 8 corresponding with this station moves down, back down the first corresponding with it seal arrangement 11, pressurized air enters by through air input joint 18, and is entered into the decline interface 24 corresponding with carriage lifting station controlled carriage lifting by the first gas channels 16, first seal arrangement 11 inner chamber, gas circuit successively.
4, railway carriage or compartment door is closed
When promotion Joystick 3 to railway carriage or compartment, door closes station, under cam 12 acts on, the changeover valve core 20 corresponding with this station moves down, back down the first corresponding with it seal arrangement 11, pressurized air enters by through air input joint 18, and is entered into by the second gas channels 21, first seal arrangement 11 inner chamber, gas circuit successively and to close the corresponding down interface of station 26 with railway carriage or compartment door and control railway carriage or compartment door and close; Pressurized air enters in the Seal cage between switch plunger tip 15 and stage vestibule through the second gas control passage 23 simultaneously, pushing switch plunger tip 15 moves, second seal arrangement 17 loses the ejection effect rear enclosed of switch plunger tip 15, the first seal arrangement 11 inner chamber making lifting, decline station corresponding and compressed gas source disconnect, even if now because misoperation promotes Joystick 3 to carriage lifting or decline station, also can not complete corresponding carriage lifting or decline controlling functions because losing source of the gas, thus realize the effect of safety protection.
Claims (10)
1. multi-channel control air valve, comprise valve body (10), be opened in the air input joint (18) on valve body (10) and exhaust port (19), axially arrange and be spaced in valve body (10), controlled axial displacement by Joystick (3) changeover valve core (20), relief pressure valve cartridge (8), changeover valve core (20), relief pressure valve cartridge (8) below is respectively equipped with the first plug for seal device (11), and valve body (10) inner chamber offers working interface, it is characterized in that working interface comprises lifting interface (27), decline interface (24), unlock interface (25), down interface (26), each working interface is communicated with each first seal arrangement (11) respectively by gas circuit, three changeover valve cores (20) and relief pressure valve cartridge (8) respectively with four station adaptations corresponding to Joystick (3), valve body (10) is fixed with air control switch, pneumatic mechanism both sides on air control switch are communicated with unlock interface (25) and down interface (26) respectively by gas control passage, in air control switch, the tight mechanism two ends of air input joint (18) top are communicated with each first seal arrangement (11) respectively by gas channels.
2. multi-channel control air valve according to claim 1, it is characterized in that described changeover valve core (20) respectively with the lifting of Joystick (3), that railway carriage or compartment door is opened, railway carriage or compartment door closes three stations is corresponding, relief pressure valve cartridge (8) is corresponding with the decline station of Joystick (3)
3. multi-channel control air valve according to claim 1, it is characterized in that described valve body (10) upper surface is arranged and handle lid (7), handle lid (7) by its surface offer adaptive with Joystick (3) bottom in cross location groove (1), four end points corresponding lifting respectively of location groove (1), decline, railway carriage or compartment door are opened, railway carriage or compartment door closes four stations.
4. multi-channel control air valve according to claim 3, characterized by further comprising a self-locking mechanism, this self-locking mechanism comprises elastic sleeve and is loaded on grip (4) on Joystick (3), be opened in first location counterbore (5) at groove (1) criss-crossing position, location, location groove (1) end points of corresponding decline station offers the second location counterbore (6), the first location counterbore (5), the second location counterbore (6) and grip (4) lower end adaptation.
5. the multi-channel control air valve according to any one of claim 1-4, is characterized in that changeover valve core (20) and relief pressure valve cartridge (8) control its axial displacement by the cam (12) being connected to Joystick (3) below.
6. multi-channel control air valve according to claim 5, is characterized in that described cam (12) selects cross cam.
7. multi-channel control air valve according to claim 5, it is characterized in that described cam (12) is overall spherical in shape, cam (12) bottom is cambered surface or the spheric structure of the changeover valve core (20) corresponding with each station and relief pressure valve cartridge (8) adaptation.
8. multi-channel control air valve according to claim 1, it is characterized in that described valve body (10) is rectangle or foursquare quadrangular structure in section, decline interface (24), unlock interface (25), down interface (26), lifting interface (27) are opened on the drift angle place, valve body (10) bottom surface between four stations respectively.
9. multi-channel control air valve according to claim 1, it is characterized in that described air control switch comprises switching valve body (13), switching valve body (13) inner chamber is stage cavity, be located at the shutoff (9) at switching valve body (13) top, wherein pneumatic mechanism comprises in the stage cavity of shutoff (9) lower surface and is provided with the radially-outer surface airtight gas piston (14) that is slidably matched and switch plunger tip (15) with its inwall respectively from top to bottom, the upper end of switch plunger tip (15) and gas piston (14) inner chamber are set with and are slidably matched, switch plunger tip (15) inner chamber hollow, its upper end open connects the stage cavity between vent piston (14) and switch plunger tip (15), its lower ending opening is in switch plunger tip (15) lower end surface, wherein tight mechanism is the second seal arrangement (17) be provided with in the stage cavity of switch plunger tip (15) below, stage cavity bottom is provided with air input joint (18).
10. multi-channel control air valve according to claim 9, it is characterized in that gas channels comprises the first gas channels (16), second gas channels (21), stage cavity connects wherein between the first gas channels (16) one end and switch plunger tip (15) and the second seal arrangement (17), first gas channels (16) the other end and lifting, the first seal arrangement (11) inner space corresponding to decline station, second gas channels (21) one end open is in the stage cavity of the second seal arrangement (17) bottom, second gas channels (21) the other end and unlatching, close the first seal arrangement (11) inner space that station is corresponding, gas control passage comprises the first gas control passage (22), the second gas control passage (23), wherein the first gas control passage (22) one end open is in the stage cavity of gas piston (14) top, first gas control passage (22) the other end is communicated with unlock interface (25), second gas control passage (23) one end open is in the Seal cage that switch plunger tip (15) and stage cavity are formed, and second gas control passage (23) the other end is communicated with down interface (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957418.6A CN105402443B (en) | 2015-12-18 | 2015-12-18 | Multi-channel control air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957418.6A CN105402443B (en) | 2015-12-18 | 2015-12-18 | Multi-channel control air valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105402443A true CN105402443A (en) | 2016-03-16 |
| CN105402443B CN105402443B (en) | 2017-07-28 |
Family
ID=55468108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510957418.6A Active CN105402443B (en) | 2015-12-18 | 2015-12-18 | Multi-channel control air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402443B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864461A (en) * | 2016-05-22 | 2016-08-17 | 河北睿智辰诚液压机械科技有限公司 | Improved slow-down control air valve |
| CN105895412A (en) * | 2016-05-11 | 2016-08-24 | 陈功 | Industrial automobile switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4404991A (en) * | 1982-09-29 | 1983-09-20 | Donahue Enterprises, Inc. | Valve control assembly |
| CN2241243Y (en) * | 1995-11-27 | 1996-11-27 | 青岛专用汽车制造厂 | Control air valve |
| US6125886A (en) * | 1997-05-22 | 2000-10-03 | Kawasaki Jukogyo Kabushiki Kaisha | Pilot valve |
| CN101303088A (en) * | 2008-06-10 | 2008-11-12 | 浙江苏强格液压有限公司 | Handle pilot valve |
| CN101319729A (en) * | 2008-07-02 | 2008-12-10 | 浙江苏强格液压有限公司 | Variable pin pilot valve |
| CN101532527A (en) * | 2009-04-22 | 2009-09-16 | 黄培华 | Pressure-regulating control air valve |
| CN201318477Y (en) * | 2008-10-24 | 2009-09-30 | 柯寿乾 | Three-position four-way manual valve |
| CN205207776U (en) * | 2015-12-18 | 2016-05-04 | 黄培华 | Multichannel control gas valve |
-
2015
- 2015-12-18 CN CN201510957418.6A patent/CN105402443B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4404991A (en) * | 1982-09-29 | 1983-09-20 | Donahue Enterprises, Inc. | Valve control assembly |
| CN2241243Y (en) * | 1995-11-27 | 1996-11-27 | 青岛专用汽车制造厂 | Control air valve |
| US6125886A (en) * | 1997-05-22 | 2000-10-03 | Kawasaki Jukogyo Kabushiki Kaisha | Pilot valve |
| CN101303088A (en) * | 2008-06-10 | 2008-11-12 | 浙江苏强格液压有限公司 | Handle pilot valve |
| CN101319729A (en) * | 2008-07-02 | 2008-12-10 | 浙江苏强格液压有限公司 | Variable pin pilot valve |
| CN201318477Y (en) * | 2008-10-24 | 2009-09-30 | 柯寿乾 | Three-position four-way manual valve |
| CN101532527A (en) * | 2009-04-22 | 2009-09-16 | 黄培华 | Pressure-regulating control air valve |
| CN205207776U (en) * | 2015-12-18 | 2016-05-04 | 黄培华 | Multichannel control gas valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895412A (en) * | 2016-05-11 | 2016-08-24 | 陈功 | Industrial automobile switch |
| CN105864461A (en) * | 2016-05-22 | 2016-08-17 | 河北睿智辰诚液压机械科技有限公司 | Improved slow-down control air valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105402443B (en) | 2017-07-28 |
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