CN2697367Y - Manual lock-opening type multi-channel change-valve - Google Patents
Manual lock-opening type multi-channel change-valve Download PDFInfo
- Publication number
- CN2697367Y CN2697367Y CN 200420031416 CN200420031416U CN2697367Y CN 2697367 Y CN2697367 Y CN 2697367Y CN 200420031416 CN200420031416 CN 200420031416 CN 200420031416 U CN200420031416 U CN 200420031416U CN 2697367 Y CN2697367 Y CN 2697367Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- push rod
- oil
- joystick
- 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.)
- Expired - Fee Related
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Abstract
A manual lock-opening type multi-channel change-valve of the utility model includes a valve body (1), a plurality of change-valves (2) provided in the valve body (1), an operating handle (3) hinged at the outside of the valve body (1), a hydraulic lock device comprising a one-way valve (5), an ejector rod (6), and a return spring of the ejector rod (61) provided on the valve body corresponding to the change-valves (2). The requirement to the cleaning degree of the hydraulic oil is not high, and the operation of the hydraulic lock is reliable, so the utility model is suitable for controlling the single-action oil cylinder.
Description
Technical field
The utility model relates to hydraulic element, what be specifically related to is a kind of multi-way reversing control valve unit with hydraulic lock.
Background technique
Prior art multiple directional control valve with lock is by valve body, several selector valve, is distributed on the valve opening of selector valve and is provided with various oil pockets, the oil pocket of the corresponding valve opening that respectively commutates offers each oil duct on valve body, corresponding each selector valve is offered Pilot operated check valve on valve body be that the hydraulic lock device constitutes, Pilot operated check valve is to be made of with the hydraulic control plunger one-way valve, lead to two working oil chambers of selector valve respectively the both sides of hydraulic control plunger, hydraulic control plunger move left and right under the control of selector valve working oil chamber is pushed one-way valve open, forms multiple directional control valve with lock.Because the matching gap of hydraulic control plunger and its consent is very little, if hydraulic oil is unclean, just make the plunger clamping stagnation easily, the spring force of one-way valve can not make plunger return, causes one-way valve not close, and it is malfunctioning to cause Pilot operated check valve to be that the hydraulic lock device is not closed completely.
Summary of the invention
The purpose of this utility model is to improve at the shortcoming deficiency of above-mentioned prior art, provides a kind of simple in structure, easily manufactured, and it is strong that oil rub resistance dyes ability, and service-strong multiple directional control valve with lock promptly provides a kind of manual lock-opening style multiple directional control valve.
The utility model includes valve body 1, in valve body, offer several selector valve 2, the valve rod 20 of corresponding each selector valve 2 is hinged with Joystick 3 on valve body, the end of Joystick 3 and valve rod 20 outer ends are articulated and connected, drive valve rod 20 actions, on the valve opening 21 of selector valve, be distributed and be provided with oil back chamber T, active chamber A, oil suction chamber P, off-load oil pocket X1, X2, the oil pocket of corresponding commutation valve opening 21 offers each road binders road on valve body 1, corresponding selector valve 2 offers on valve body by one-way valve 5 and push rod 6, the hydraulic lock device that push rod Returnning spring 61 constitutes, the chamber 60 of push rod 6 passes through oil duct a UNICOM with the active chamber A of selector valve, and push rod 6 outer ends are passed valve body 1 and cooperated formation with Joystick 3.When handle 3 during to right panel, drive valve rod 20 and be moved to the left, valve rod 20 cuts off off-load oil pocket X1, X2, and makes oil suction chamber P and active chamber A UNICOM, and pressure oil is entered in hydraulic lock push rod 6 chambers 60 by oil duct a, backs down one-way valve 5 pressure oil output; When handle 3 one-way valve 5 that resets when being in the neutral position fixed in its spring action ShiShimonoseki locking; When handle 3 when plate is moving left, drive valve rod 20 and move right, valve rod 20 makes active chamber A and oil back chamber T UNICOM, and handle 3 promotion push rods 6 back down one-way valve 5 simultaneously, and oil circuit is opened; When handle 3 went back to the neutral position again, one-way valve 5 and push rod 6 resetted under its spring action and close locking.
The utility model is because its hydraulic lock device is to be cooperated by manual push rod 6 and one-way valve 5 to constitute, push rod 6 has its oneself powerful Returnning spring 61, reliable in action, can not clamping stagnation push rod 6 even hydraulic oil is dirtier, so the turbidity test to hydraulic oil are less demanding, the hydraulic lock reliable operation, it is applicable to that the control one-way cylinder uses.
Description of drawings
Fig. 1, the 2nd, the utility model example structure schematic representation, wherein Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment
The utility model is by valve body 1, in valve body 1, offer several selector valve 2, the valve rod 20 of corresponding each selector valve 2 cuts up with a hay cutter outside valve body 1 and is hinged with Joystick 3, the end of Joystick 3 and valve rod 20 outer end spheres are articulated and connected, drive valve rod 20 actions, on the valve opening 21 of selector valve, be distributed and be provided with oil back chamber T, active chamber A, oil suction chamber P, off-load oil pocket X1, X2, the oil pocket of corresponding commutation valve opening 21 offers each road binders road on valve body 1, corresponding certain or all selector valve 2 on valve body 1, offer respectively by one-way valve 5 and push rod 6, the hydraulic lock device that push rod Returnning spring 61 constitutes, the chamber 60 of push rod 6 passes through oil duct a UNICOM with the active chamber A of selector valve 2, push rod 6 outer ends are passed valve body 1 by pilot hole 62 and are cooperated with Joystick 3, press by Joystick 3, be provided with rubber seal 63 seal arrangements at pilot hole 62 and 6 of push rods, it is last that push rod Returnning spring 61 is sleeved on push rod 6 outer shrouds and axial pressure acts on push rod 6 formations.Handle 3 left/drive when right panel is moving valve rod 20 actions to the right/move left; Plate is moving left presses push rod 6 simultaneously and move for handle 3, and handle 3 resets to the right, and push rod 6 resets under its spring action simultaneously.
Claims (1)
1, manual lock-opening style multiple directional control valve, it is characterized in that including valve body (1), in valve body (1), offer several selector valve (2), the valve rod (20) of corresponding each selector valve (2) is hinged with Joystick (3) on valve body (1) outside, the end of Joystick (3) and valve rod (20) outer end are articulated and connected, drive valve rod (20) action, on the valve opening (21) of selector valve, be distributed and be provided with oil back chamber (T), active chamber (A), oil suction chamber (P), off-load oil pocket (X1, X2), the oil pocket of going up corresponding commutation valve opening (21) at valve body (1) offers each road binders road, corresponding selector valve (2) offers on valve body by one-way valve (5) and push rod (6), the hydraulic lock device that push rod Returnning spring (61) constitutes, the chamber (60) of push rod (6) passes through oil duct (a) UNICOM with the active chamber (A) of selector valve, push rod (6) outer end is passed valve body (1) by pilot hole (62) and is cooperated with Joystick (3), is pressed by Joystick (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031416 CN2697367Y (en) | 2004-04-29 | 2004-04-29 | Manual lock-opening type multi-channel change-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031416 CN2697367Y (en) | 2004-04-29 | 2004-04-29 | Manual lock-opening type multi-channel change-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2697367Y true CN2697367Y (en) | 2005-05-04 |
Family
ID=34772431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420031416 Expired - Fee Related CN2697367Y (en) | 2004-04-29 | 2004-04-29 | Manual lock-opening type multi-channel change-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2697367Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235832B (en) * | 2007-02-02 | 2010-04-21 | 上海立新液压有限公司 | Hand-driven change valve |
| CN102678643A (en) * | 2012-04-25 | 2012-09-19 | 三一重型综采成套装备有限公司 | Hand-operated reversing valve and sealing structure thereof |
| CN103775404A (en) * | 2012-10-23 | 2014-05-07 | 上海亦村仪器仪表有限公司 | Hand-operated reversing valve comprising hydraulic locking device |
| CN106930994A (en) * | 2017-05-09 | 2017-07-07 | 江苏力源液压机械有限公司 | Position floating reversal valve is jumped in the manual pressurize of tractor |
-
2004
- 2004-04-29 CN CN 200420031416 patent/CN2697367Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235832B (en) * | 2007-02-02 | 2010-04-21 | 上海立新液压有限公司 | Hand-driven change valve |
| CN102678643A (en) * | 2012-04-25 | 2012-09-19 | 三一重型综采成套装备有限公司 | Hand-operated reversing valve and sealing structure thereof |
| CN102678643B (en) * | 2012-04-25 | 2015-02-18 | 三一重型综采成套装备有限公司 | Hand-operated reversing valve and sealing structure thereof |
| CN103775404A (en) * | 2012-10-23 | 2014-05-07 | 上海亦村仪器仪表有限公司 | Hand-operated reversing valve comprising hydraulic locking device |
| CN106930994A (en) * | 2017-05-09 | 2017-07-07 | 江苏力源液压机械有限公司 | Position floating reversal valve is jumped in the manual pressurize of tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050504 Termination date: 20100429 |