CN203335136U - Remote control valve - Google Patents
Remote control valve Download PDFInfo
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- CN203335136U CN203335136U CN2013204180428U CN201320418042U CN203335136U CN 203335136 U CN203335136 U CN 203335136U CN 2013204180428 U CN2013204180428 U CN 2013204180428U CN 201320418042 U CN201320418042 U CN 201320418042U CN 203335136 U CN203335136 U CN 203335136U
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- valve
- remote control
- control valve
- motor
- housing
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Abstract
The utility model relates to an assistant device of an engine of an automobile, in particular to a remote control valve. The remote control valve comprises a shell body (110), an air valve (120), a cam shaft (130), a cam drive gear (140) and a motor drive gear (150). The remote control valve (100) is controlled by a remote controller (90). Before the automobile is started, a 1# key of the remote controller (90) is pressed down, the air valve (120) of the remote control valve (100) is opened, compressed air enters the engine, and then the engine is started. When a 1' key is pressed down, the air valve (120) of the remote control valve (100) is closed, the compressed air stops entering the engine, then the engine stops rotating and the automobile stops running. The remote control valve has the advantages of being high in working pressure (45MPa), resistant to high temperature, safe in remote control, high in sealing performance, strong in interference resistance, stable in performance, low in power dissipation and the like.
Description
Technical field
The utility model relates to the auxiliary device of motor car engine, relates in particular to a kind of remote control valve.
Background technique
Motor is widely used in all trades and professions, the Modern Traffic means of transportation such as automobile, steamer etc. in, the general employing usingd the piston internal-combustion engine of fuel oil as power source.This employing fuel oil is insufficient because of oil inflame on the one hand as the motor of power source, make in the gas of discharge and contain a large amount of harmful matters and befouling environment, because the fuel oil used is to refine and obtain from oil, the day by day in short supply of petroleum resources makes the development of fuel engine and utilization be subject to increasing restriction on the other hand.Therefore develop new, clean, free of contamination alternative energy source, perhaps reduce as much as possible fuel consume, reduce discharge and become urgent problem in development of engine, the pressurized air of usining has just in time met this requirement as the air-powered motor of power source.
The application's claimant discloses a kind of air power engine assembly that can be used for transport facility in its patent documentation CN101413403 A (its international application of the same clan is WO2010051668 A1), and this motor comprises gas holder, air distributor, engine body, clutch, clutch, automatic transmission, differential mechanism and is placed in the turbo dynamo in exhaust chamber.This motor utilizes compressed air to do work and does not use any fuel, therefore there is no toxic emission, realized " zero-emission ", and recycling waste gas is generated electricity, and has saved the energy, has reduced cost.But this motor is based on traditional four stroke engine, 720 ° of the every rotations of bent axle, piston does work once.And can promote the piston acting as the pressurized air of power source can be in entering cylinder the time, and then discharge, the stroke of compressed air engine is actual is air inlet-expansion stroke and discharge stroke.Obviously, the disclosed this four-stroke compressed air engine of patent documentation CN101413403 A has been wasted effective expansion stroke greatly, has limited the efficiency of motor.And the tail gas of this motor fails to recycle well, need enough large gas holder deposit pressurized air could work the sufficiently long time.
Based on the existing problem of patent application CN101413403 A, disclose a kind of compressed air engine assembly with tail gas recycling loop in China's application that the application's claimant is 201110331809.9 at its application #, this motor comprises cylinder, cylinder cap system, air inlet pipeline, gas exhaust piping, piston, connecting rod, bent axle, exhaust cam shaft, admission cam shaft, front gear box system and rear gear box.This motor utilizes compressed air to do work and does not use any fuel, therefore there is no toxic emission, has realized " zero-emission ", and has recycled waste gas and done work, and has saved the energy, has reduced cost.But this motor is In-line multi-cylinder engine, in each the controller valve port in controller, a controller valve only is installed, in the situation that the motor overall length is certain, limit cylinder cylinder number, thereby limited the gross output of motor.Obviously, the disclosed this in-line multi-cylinder air-powered motor gross output of 201110331809.9 # application is not high, and the configuration of motor still is worth exploring.
Based on the existing problem of application number 201110331809.9, the application's claimant discloses a kind of V-type multi-cylinder air-powered motor in China's application of its application number 201210063546.2, comprising: multicylinder engine body, multicolumn body power distribution device, power equipment, controller system, air inlet are controlled series flow control valve, compression gas tank group, constant-pressure tank, electronic control unit ECU, pressurized air heating equipment and selectable second for air circuit.The output power problem and the circulation of tail gas that are intended to solve air-powered motor utilize problem, thereby realize Novel compressed air motor economic, efficient, zero-emission.But this motor is not high to compressed-air actuated utilization, larger to compressed-air actuated demand during the piston cylinder acting.
By above various air-powered motors, found out, existing air-powered motor is identical with other motor in prior art, all need storage battery as power source, first rely on storage battery to provide power by engine start, when storage battery does not have electricity, motor can't start like this, and vehicle can't travel.
The model utility content
The above-mentioned technological deficiency existed in order to solve prior art, the purpose of this utility model is to provide a kind of remote control valve, controls the switching of valve port and then controls compressed-air actuated amount.The characteristics such as the start key that only need to press remote control valve before Vehicle Driving Cycle can be realized the startup of vehicle motor, has reaction soon, easy to operate.
In order to realize above-mentioned purpose of design, the scheme that the utility model adopts is as follows:
A kind of remote control valve, comprise housing and cover plate, in described housing, is provided with valve, and the top of described housing is provided with needle-valve, and lower end is provided with camshaft, cam driving gear, motor-driven gear and cam.While in this remote control valve, entering pressurized air, valve is resisted against valve seat and puts, pressurized air enters in the cavity of valve, at this moment rotate needle-valve, pressurized air enters in the cavity of another valve through the cavity of needle-valve lower end, finally from relief opening, discharges the operation for motor in the piston cavity that enters into motor power is provided.
Preferably, the front panel of described housing is provided with small-sized position limit switch.
In above-mentioned arbitrary scheme, preferably, described small-sized position limit switch is provided with contact.
In above-mentioned arbitrary scheme, preferably, described valve is resisted against valve seat and puts.
In above-mentioned arbitrary scheme, preferably, described valve seat is placed in the valve cylinder.
Preferably, between described valve cylinder and housing, be provided with the O RunddichtringO in above-mentioned arbitrary scheme.
In above-mentioned arbitrary scheme, preferably, described valve lower end is connected with valve stem, and valve stem is placed in valve guide bushing, and the top of valve guide bushing is provided with valve oil seal, thereby the phenomenon of leaking can not occur the gas of controlling the valve top of chamber.
In above-mentioned arbitrary scheme, preferably, the lower end of described valve stem is placed in valve spring, and this valve spring is positioned on cotter seat.
In above-mentioned arbitrary scheme, preferably, the lower end of described valve stem is connected with tappet.
Preferably, have suction port and relief opening on described housing in above-mentioned arbitrary scheme.
In above-mentioned arbitrary scheme, preferably, described suction port and relief opening all are positioned at the same side of housing.
In above-mentioned arbitrary scheme, preferably, described suction port and relief opening all communicate with the valve chamber of valve.
In above-mentioned arbitrary scheme, preferably, described needle-valve comprises valve rod, handle and cavity.
In above-mentioned arbitrary scheme, preferably, described cavity communicates with the valve chamber of valve.
In above-mentioned arbitrary scheme, preferably, the joint, valve chamber of described cover plate and valve is provided with polytetrafluoroethylsealed sealed pad.
In above-mentioned arbitrary scheme, preferably, described cover plate is connected with housing by the cover plate fixing bolt.
In above-mentioned arbitrary scheme, preferably, described cam driving gear is fixed on camshaft, and by the cam securing cover plate, is separated between cam driving gear and housing.
Preferably, between described cam securing cover plate and cam driving gear, be provided with pad in above-mentioned arbitrary scheme.
In above-mentioned arbitrary scheme, preferably, described motor-driven gear is connected with DC micro-motor.
In above-mentioned arbitrary scheme, preferably, described motor-driven gear and cam driving gear mesh.
The accompanying drawing explanation
Fig. 1 is the plan view according to remote control valve of the present utility model.
Fig. 2 is the sectional view according to the A-A direction of the remote control valve shown in Fig. 1 of the present utility model.
Fig. 3 is the sectional view according to the B-B direction of the remote control valve shown in Fig. 1 of the present utility model.
Fig. 4 is the sectional view according to the C-C direction of the remote control valve shown in Fig. 3 of the present utility model.
Fig. 5 is to be the control system figure according to the remote control valve shown in Fig. 5 of this valve according to structural representation Fig. 6 of the control gear of the remote control valve shown in Fig. 1 of the present utility model.
Attached number in the figure:
Embodiment
The following description is only exemplary and be not in order to limit the disclosure, application or purposes in essence.Embodiment below in conjunction with Figure of description to remote control valve of the present utility model is further described.
As shown in Figure 1, sectional view according to remote control valve of the present utility model, a kind of remote control valve, comprise housing 110 and cover plate 113, be provided with valve 120 in described housing 110, the top of described housing 110 is provided with needle-valve 111, and lower end is provided with camshaft 130, cam driving gear 140, motor-driven gear 150 and cam 134.When this remote control valve 100 enters pressurized air from suction port 116, valve 120 is resisted against on valve cover for seat 122 in initial position, pressurized air enters in the cavity of valve 120, at this moment rotate needle-valve 111, pressurized air enters in the cavity of another valve 120 through the cavity of needle-valve 111 lower ends, finally from relief opening 117, discharges the operation for motor in the piston cavity that enters into motor power is provided.
In the present embodiment, the front panel of described housing 110 is provided with 4 small-sized position limit switches 112, contact with the contact on these 4 small-sized position limit switches 112 respectively during the clockwise and anticlockwise of cam driving gear 140, and then control the switching of valve 120, thus the travelling state of vehicle.
As shown in Figure 2, motor-driven gear 150 is connected with DC micro-motor 160.Drive motor actuation gear 150 rotations after DC micro-motor 160 starts, motor-driven gear 150 and cam driving gear 140 engagements, rotate thereby drive cam driving gear 140.
Next consult shown in Fig. 3, valve 120 is resisted against on valve cover for seat 122, and this valve cover for seat 122 is placed in valve cylinder 121.
In the present embodiment, described cover plate 113 is provided with polytetrafluoroethylsealed sealed pad 114 with the joint, valve chamber of valve 120.
In the present embodiment, described cover plate 113 is connected with housing 110 by cover plate fixing bolt 115.
In the present embodiment, described cam driving gear 140 is fixed on camshaft 130, and by cam securing cover plate 132, is separated between cam driving gear 140 and housing 110.
In the present embodiment, be provided with pad 131 between described cam securing cover plate 132 and cam driving gear 140.
In the present embodiment, between described valve cylinder 121 and housing 110, be provided with O RunddichtringO 123, thereby avoided the friction between valve cylinder 121 and housing 110 cavitys, guaranteed the sealing of valve 120.
As shown in Figure 4, in the embodiment in the application, the assembly of valve 120 has 2, and side by side, and the cavity of upper and lower end communicates and works simultaneously the assembly of these 2 valves 120.
Handle 119 when rotation needle-valve 111, the upwards operation of valve rod 118 of needle-valve 111, the cavity of needle-valve 111 bottoms is opened, and suction port 116 passes into pressurized air, because left side valve 120 is resisted against in valve cover for seat 122, pressurized air enters in the valve chamber of valve 120.Entering the flow through cavity of valve rod 118 bottoms of pressurized air in the valve chamber of valve 120 enters in the cavity at valve 120 tops on right side, at this moment along with the projection of the cam 134 on the rotating cam axle 130 of camshaft 130 by tappet 128 jack-up of valve stem 129 lower ends, valve 120 breaks away from valve cover for seat 122, valve 120 is opened lentamente, pressurized air from suction port 116 enters in the valve chamber of right side valve 120, then pass through the lower end of valve stem 129, next in the through hole of the valve 120 of the left and right sides shown in Fig. 4 enters into the valve chamber of valve 120 in left side, finally from relief opening 117, discharge, enter in the piston cavity of motor.
During remote control valve 100 off working state in the application, the through hole of the valve rod 118 of needle-valve 111 in the ，Jiang left and right sides, minimum position of needle-valve 111 cavitys valve 120 blocks, and disconnects the circulation of the valve intracavity gas of left and right sides valve 120.
In the present embodiment, when camshaft 130 turns to several angle, the projection of the cam 134 on camshaft 130 causes valve spring 126 compressed the top squeeze cotter seat 127 of tappet 128, thereby promoting valve stem 129 moves upward along valve guide bushing 125, valve 120 will slowly break away from valve cover for seat 122, and pressurized air will enter in the cavity of valve 120.
In the present embodiment, described valve 120 lower ends are connected with valve stem 129, and valve stem 129 is placed in valve guide bushing 125.While in the cavity of valve, entering pressurized air, valve 120 will move up and down along valve guide bushing 125, can not depart from or crooked phenomenon.
In the present embodiment, the top of described valve guide bushing 125 is provided with valve oil seal 124, and valve 120 Shi Buhui that moves up and down makes pressurized air enter into the bottom of valve stem 129 along valve stem 129, has played good sealing left and right.
In the present embodiment, the lower end of described valve stem 129 is placed in valve spring 126, and this valve spring 126 is positioned on cotter seat 127.During original state, under the effect of valve spring 126 pulling force, on valve stem 129, valve 120 not is resisted against in valve cover for seat 122, and the pressurized air that enters into valve 120 tops can not enter into the position of valve stem 129.
In the present embodiment, the lower end of described valve stem 129 is connected with tappet 128.
In the present embodiment, have suction port 116 and relief opening 117 on described housing 110.
In the present embodiment, described suction port 116 and relief opening 117 all are positioned at the same side of housing 110.
In the present embodiment, described suction port 116 and relief opening 117 all communicate with the valve chamber of valve 120.After suction port 116 passes into pressurized air, through the cavity of valve 120, the cavity of needle-valve 111 lower ends of then flowing through, next enter all cavitys of another valve 120, finally from relief opening 117, discharges and enter in the piston cavity of motor.
In the present embodiment, described needle-valve 111 comprises valve rod 118, handle 119 and cavity.During initial position, valve rod 118 is positioned at the bottom of the cavity of needle-valve 111, and when suction port 116 passes into pressurized air, rotatable handle 119, and valve rod 118 will move upward, and causes the cavity of needle-valve 111 to communicate with the valve chamber on valve 120 tops.
Next consult Fig. 5, the control gear of remote control valve in the application, described control gear 200 comprises cam driving gear 140, motor-driven gear 150, camshaft 130, cam 134, small-sized position limit switch 112 and DC micro-motor 160, is provided with control circuit board 30 and control module 91 in described remote controller 90.
In the present embodiment, the motor that described remote controller 90 can be adjusted the distance on the vehicle that is less than 100 meters is controlled.
In the present embodiment, also be provided with storage battery 10 and chargeable battery 20 in described remote controller 90.
In the present embodiment, described small-sized position limit switch 112 is provided with contact.
In the present embodiment, described small-sized position limit switch 112 comprises the spacing A41 of position limit switch, the spacing B42 of position limit switch, the spacing A ' 51 of position limit switch and the spacing B ' 52 of position limit switch.
The spacing A41 of position limit switch, the spacing B42 of position limit switch, the spacing A ' 51 of position limit switch and the spacing B ' 52 of position limit switch are equipped with contact, after DC micro-motor 160 starts, camshaft 130 rotations, cam driving gear 140 on camshaft 130 is rotation thereupon also, when the boss of cam driving gear 140 contacts with corresponding small-sized position limit switch 112 upper contacts, corresponding small-sized position limit switch 112 is opened, and then controls the unlatching of corresponding valve 120 or close.
In the present embodiment, described cam driving gear 140 comprises gearwheel A61 and gearwheel B62; It is upper that gearwheel A61 is fixed on camshaft A71, and gearwheel B62 is fixed on camshaft B72.
In the present embodiment, described gearwheel A61 and gearwheel B62 are tooth sector, and its segment angle is 324 degree.
In the present embodiment, described motor-driven gear 150 comprises small gear A31 and small gear B32.
In the present embodiment, described DC micro-motor 160 comprises DC micro-motor A81 and DC micro-motor B82.
In the present embodiment, described gearwheel A61 and small gear A31 engagement; Gearwheel B62 and small gear B32 engagement.
In the present embodiment, described remote controller 90 is provided with 4 buttons, is respectively 1#, 2#, 1 ' # and 2 ' #.The forward of 1# key control DC micro-motor A; The reversion of 1 ' # key control DC micro-motor A; The forward of 2# key control DC micro-motor B; The reversion of 2 ' # key control DC micro-motor B.
Finally consult shown in Fig. 6 the control system of the application's remote control valve.In the present embodiment, described control module 91 comprises recognition by pressing keys coding, wireless transmission, wireless receiving, letter # identification, motor module and limit switch module.
During button on pressing remote controller 90, the recognition by pressing keys code coding of remote controller 90 inside is distinguished according to the coding of button, then send corresponding wireless transmission signal, corresponding wireless receiving module receives signal signal is identified, next send signal to the clockwise and anticlockwise of controlling corresponding motor in motor module, motor module also sends to signal corresponding limit switch module in addition, and then controls the switching of corresponding limit switch.
In the present embodiment, when the 1# key of described remote controller 90 is pressed, camshaft A71 forward 18 degree, the gearwheel A61 on camshaft A71 contacts with the contact of the spacing A41 of position limit switch.
In the present embodiment, when 1 ' # key of described remote controller 90 is pressed, camshaft A71 reversion 18 degree, the gearwheel A61 on camshaft A71 contacts with the contact of the spacing A ' 51 of position limit switch.
In the present embodiment, when the 2# key of described remote controller 90 is pressed, camshaft B72 forward 18 degree, the gearwheel B62 on camshaft B72 contacts with the contact of the spacing B42 of position limit switch.
In the present embodiment, when 2 ' # key of described remote controller 90 is pressed, camshaft B72 reversion 18 degree, the gearwheel B62 on camshaft B72 contacts with the contact of the spacing B ' 52 of position limit switch.
In sum: when motor is opened, remote controller 90 is aimed to remote control valve 100, press the 1# key, turn on needle-valve 111, DC micro-motor A81 starts, the cam 134 driven on the camshaft A71 in corresponding remote control valve 100 rotates, and corresponding valve 120 is slowly backed down, and makes the ascending unlatching of valve 120, pressurized gas enters control gear 200 from suction port 116, pressurized air is flowed through after the assembly of valve 120 of the left and right sides and is discharged from relief opening 117, enters subsequently in motor, makes its startup.When camshaft A71 turns to maximum position, 90 while spending, gearwheel A61 rotates 18 degree, touch the spacing A41 normally closed interlock of position limit switch, circuit is disconnected, DC micro-motor A81 stops operating, unclamp the 1# key, the breakdown action of valve 120 stops, and the manual tune needle-valve 111 subsequently, and engine idle starts.
When the 2# key of pressing on remote controller 90, DC micro-motor B82 starts, the cam 134 driven on the camshaft B72 in corresponding remote control valve 100 rotates, corresponding valve 120 is slowly backed down, make the ascending unlatching of valve 120, the pressurized gas inlet increases, motor proceeds to slow acceleration mode from idling, when camshaft B72 turns to maximum position, 90 while spending, and gearwheel B62 rotates 18 degree, touch the spacing B42 normally closed interlock of position limit switch, circuit is disconnected, and DC micro-motor B82 stops operating, the motor full speed running.
Tail-off: when the 1 ＇ # key of pressing on remote controller 90, DC micro-motor A81 reversion, the cam 134 driven on the camshaft A71 in corresponding remote control valve 100 rotates, corresponding valve 120 slowly descends, make that valve 120 is descending closes, pressurized gas stops entering, when the cam 134 on camshaft A71 turns to maximum position, 90 while spending, gearwheel A61 rotates 18 degree, touches spacing A ＇ 51 normally closed interlocks of position limit switch, and circuit is disconnected, DC micro-motor A81 stops operating gradually, engine retard operation.
When the 2 ＇ # keys of pressing on remote controller 90, DC micro-motor motor B82 reversion, the cam 134 driven on the camshaft B72 in corresponding remote control valve 100 rotates, corresponding valve 120 slowly descends, make that valve 120 is descending closes, the pressurized gas inlet reduces, engine retard, when camshaft B72 turns to maximum position, 90 while spending, gearwheel B62 rotates 18 degree, gearwheel rotates 18 degree, touches the spacing B52 ＇ of position limit switch normally closed interlock, and circuit is disconnected, DC micro-motor B82 stops operating, and motor runs abort.
It will be apparent to those skilled in the art that remote control valve of the present utility model comprises the combination in any of each several part in this specification.As space is limited and in order to make specification simple and clear, at this, these combinations are not introduced one by one in detail, but, after having seen this specification, the scope of the present utility model that the combination in any of the each several part consisted of this specification forms is self-evident.
Claims (19)
1. a remote control valve, comprise housing (110) and cover plate (113), be provided with valve (120) in described housing (110), it is characterized in that: the top of described housing (110) is provided with needle-valve (111), lower end is provided with camshaft (130), cam driving gear (140), motor-driven gear (150) and cam (134), it is upper that described cam driving gear (140) is fixed on camshaft (130), and by cam securing cover plate (132), separated between cam driving gear (140) and housing (110).
2. remote control valve as claimed in claim 1, it is characterized in that: the front panel of described housing (110) is provided with small-sized position limit switch (112).
3. remote control valve as claimed in claim 2, it is characterized in that: described small-sized position limit switch (112) is provided with contact.
4. remote control valve as claimed in claim 1, it is characterized in that: described valve (120) is resisted against on valve cover for seat (122).
5. remote control valve as claimed in claim 4, it is characterized in that: described valve cover for seat (122) is placed in valve cylinder (121).
6. remote control valve as claimed in claim 5, is characterized in that: between described valve cylinder (121) and housing (110), be provided with O RunddichtringO (123).
7. remote control valve as described as claim 1 or 4, it is characterized in that: described valve (120) lower end is connected with valve stem (129), valve stem (129) is placed in valve guide bushing (125), and the top of valve guide bushing (125) is provided with valve oil seal (124).
8. remote control valve as claimed in claim 7, it is characterized in that: the lower end of described valve stem (129) is placed in valve spring (126), and this valve spring (126) is positioned on cotter seat (127).
9. remote control valve as claimed in claim 7, it is characterized in that: the lower end of described valve stem (129) is connected with tappet (128).
10. remote control valve as claimed in claim 1, is characterized in that: have suction port (116) and relief opening (117) on described housing (110).
11. remote control valve as claimed in claim 10 is characterized in that: described suction port (116) and relief opening (117) all are positioned at the same side of housing (110).
12. remote control valve as claimed in claim 10 is characterized in that: described suction port (116) and relief opening (117) all communicate with the valve chamber of valve (120).
13. remote control valve as claimed in claim 1 is characterized in that: described needle-valve (111) comprises valve rod (118), handle (119) and cavity.
14. remote control valve as claimed in claim 13 is characterized in that: described cavity communicates with the valve chamber of valve (120).
15. remote control valve as claimed in claim 1 is characterized in that: described cover plate (113) is provided with polytetrafluoroethylsealed sealed pad (114) with the joint, valve chamber of valve (120).
16. remote control valve as described as claim 1 or 15 is characterized in that: described cover plate (113) is connected with housing (110) by cover plate fixing bolt (115).
17. remote control valve as claimed in claim 1 is characterized in that: between described cam securing cover plate (132) and cam driving gear (140), be provided with pad (131).
18. remote control valve as claimed in claim 1 is characterized in that: described motor-driven gear (150) is connected with DC micro-motor (160).
19. remote control valve as claimed in claim 18 is characterized in that: described motor-driven gear (150) and cam driving gear (140) engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204180428U CN203335136U (en) | 2013-07-15 | 2013-07-15 | Remote control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204180428U CN203335136U (en) | 2013-07-15 | 2013-07-15 | Remote control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335136U true CN203335136U (en) | 2013-12-11 |
Family
ID=49703814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204180428U Expired - Fee Related CN203335136U (en) | 2013-07-15 | 2013-07-15 | Remote control valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN203335136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334797A (en) * | 2013-07-15 | 2013-10-02 | 祥天控股（集团）有限公司 | Remote control valve |
-
2013
- 2013-07-15 CN CN2013204180428U patent/CN203335136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334797A (en) * | 2013-07-15 | 2013-10-02 | 祥天控股（集团）有限公司 | Remote control valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20150715 |
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| EXPY | Termination of patent right or utility model |