CN201116554Y - Multi-port valve with lock - Google Patents
Multi-port valve with lock Download PDFInfo
- Publication number
- CN201116554Y CN201116554Y CNU2007200807815U CN200720080781U CN201116554Y CN 201116554 Y CN201116554 Y CN 201116554Y CN U2007200807815 U CNU2007200807815 U CN U2007200807815U CN 200720080781 U CN200720080781 U CN 200720080781U CN 201116554 Y CN201116554 Y CN 201116554Y
- Authority
- CN
- China
- Prior art keywords
- valve
- way valve
- pilot operated
- operated check
- push rod
- 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
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a multi-way valve provided with a lock, which comprises a three unit four passage reversing valve and two working oil ports on the valve body of the reversing valve. The utility model is characterized in that one working oil port is mounted with a plug-in type hydraulic control one-way valve whose upper chamber above the ball cup is connected with another working oil port via an oil line arranged on the hydraulic control one-way valve sleeve and the valve body of the reversing valve, and the lower chamber between the steel ball of the hydraulic control one-way valve and the push rod is connected with one working chamber via the oil line arranged on the hydraulic control one-way valve sleeve and the valve body of the reversing valve, the lower chamber of the push rod of the hydraulic control one-way valve is connected with another working chamber of the reversing valve via the oil line on the valve body of the reversing valve. The multi-way valve has the advantages of simple structure, small volume, low cost, high reliability and easy maintenance.
Description
Technical field
The utility model relates to a kind of multi-way valve with lock, particularly is applied to the multi-way valve with lock on the combine-harvester.
Background technique
At present, a lot of agricultural and engineering machinery, as combine-harvester, the ceding of Taiwan or worktable settling amount are had relatively high expectations, after the ceding of Taiwan rises to a certain height, require in its operation process, the ceding of Taiwan can remain on a certain height, otherwise will influence the length of the wheat head that cuts, therefore, the multi-way valve actuator port that drives the ceding of Taiwan must be with lock; Adopt the earliest at multi-way valve hydraulic fluid port working surface one fluid-control one-way lock (being equivalent to board-like installation) is installed, this kind hydraulic lock is complex structure not only, and is bulky, and cost is higher, and attachment face leaks poor reliability easily; Changed built-in lock afterwards into, structure is also too complicated, is difficult to maintenance, cost is higher.
The model utility content
The purpose of this utility model is the above-mentioned deficiency at prior art, provide a kind of simple in structure, volume is little, cost is lower, be convenient to keep in repair and the multi-way valve with lock of good reliability.
For achieving the above object, multi-way valve with lock of the present utility model, comprise a three position four-way directional control valve, and be arranged on two actuator ports on this change valve, it is characterized in that wherein in the actuator port plug-in type Pilot operated check valve being installed, the epicoele of this Pilot operated check valve ball seat top links to each other with another actuator port with oil circuit on the change valve by being located at the Pilot operated check valve valve pocket, cavity of resorption between Pilot operated check valve steel ball and the push rod links to each other with an active chamber of selector valve with oil circuit on the change valve by being located at the Pilot operated check valve valve pocket, and the push rod cavity of resorption of Pilot operated check valve links to each other with another active chamber of selector valve by the oil circuit that is located on the change valve;
Working principle of the present utility model is:
The meta position:
When the guiding valve of selector valve is in meta, at this moment two active chambers communicate by throttling groove on the guiding valve and oil back chamber, pressure chamber and two active chambers are obstructed simultaneously, two active chambers do not have oil pressure (return oil pressure is only arranged), the push rod cavity of resorption and the steel ball cavity of resorption that communicate respectively with two active chambers do not have oil pressure yet, can guarantee that like this Pilot operated check valve reliably and rapidly closes;
Commutation position:
When the operation guiding valve makes it from meta during respectively to two side shiftings, pressure chamber is communicated with two active chambers respectively, pressure chamber fluid enters steel ball cavity of resorption and push rod cavity of resorption by the oil circuit that is located on Pilot operated check valve valve pocket and the change valve respectively, push steel ball open by fluid and push rod respectively, fluid is flowed out and backflow from actuator port, realize the rising and the decline of worktable respectively;
In sum, the utility model has made full use of the structural feature of existing multi-way valve, and Pilot operated check valve is the plug-in type structure, be difficult for to leak, have simple in structure, volume is little, cost is lower and good reliability, the advantage of maintenance easily.
Description of drawings
Fig. 1 is the utility model embodiment's a hydraulic schematic diagram.
Fig. 2 is the utility model embodiment's a plan view.
Fig. 3 is the plan view of change valve among Fig. 2.
Embodiment
Is example below in conjunction with accompanying drawing with the multi-way valve with lock that links to each other with the harvester header oil cylinder, and the utility model is described in further detail.
By Fig. 1, Fig. 2 and shown in Figure 3, the utility model embodiment's multi-way valve with lock, comprise a three position four-way directional control valve 1, and be arranged on two actuator port A1 on this change valve 2, B1, wherein by screw thread one Pilot operated check valve 3 is installed in the actuator port A1, the internal structure of this Pilot operated check valve 3 is a prior art, comprise limited post 4, Returnning spring 5, ball seat 6 (can be metal or on-metallic article), valve pocket 7, steel ball 8, valve seat 9, push rod 10, the epicoele of ball seat 6 tops links to each other with another actuator port B1 with oil circuit 14 on the change valve 2 by being located at valve pocket 7, cavity of resorption between steel ball 8 and the push rod 10 links to each other with the active chamber B of selector valve 1 with oil circuit 13 on the change valve 2 by being located at valve pocket 7, and the push rod cavity of resorption links to each other with the active chamber A of selector valve 1 by the oil circuit that is located on the change valve 2;
The working principle of this multi-way valve with lock is as follows:
The meta position:
When the guiding valve 11 of selector valve 1 is in meta, at this moment two active chamber A, B communicate by throttling groove on the guiding valve 11 12 and oil back chamber T, pressure chamber P and two active chamber A, B are obstructed simultaneously, two active chamber A, B do not have oil pressure (return oil pressure is only arranged), the push rod cavity of resorption and the steel ball cavity of resorption that communicate respectively with two active chamber A, B do not have oil pressure yet, can guarantee that like this Pilot operated check valve 3 reliably and rapidly closes;
Commutation position:
A, move to the right from meta when operation guiding valve 11 makes it, pressure chamber P and active chamber B are communicated with, and active chamber A and oil back chamber T are communicated with, at this moment the fluid of pressure chamber P enters the steel ball cavity of resorption by oil circuit 13, push the epicoele that steel ball 8 enters ball seat 6 open,, finish the rising of the ceding of Taiwan to actuator port B1; Shut-down operation guiding valve 11, guiding valve 11 is got back to meta under the effect of spring, and steel ball 8 falls and seal valve seat 9, stops fluid to reflux, and makes the ceding of Taiwan keep present level;
B,, moves to the left by operation guiding valve 11 from meta when making it, pressure chamber P and active chamber A are communicated with, active chamber B and oil back chamber T are communicated with, and at this moment the fluid of pressure chamber P enters the push rod cavity of resorption by oil circuit, promote push rod 10 and move up, this moment is if the ceding of Taiwan is in running order, the oil pressure reaction of actuator port B1 is on steel ball 8, and when the thrust of push rod 10 surpassed this oil pressure, push rod 10 was pushed steel ball 8 open, fluid in the actuator port B1 flows back to active chamber B by oil circuit 14, and the ceding of Taiwan descends.
Claims (1)
1. multi-way valve with lock, comprise a three position four-way directional control valve, and be arranged on two actuator ports on this change valve, it is characterized in that wherein in the actuator port plug-in type Pilot operated check valve being installed, the epicoele of this Pilot operated check valve ball seat top links to each other with another actuator port with oil circuit on the change valve by being located at the Pilot operated check valve valve pocket, cavity of resorption between Pilot operated check valve steel ball and the push rod links to each other with an active chamber of selector valve with oil circuit on the change valve by being located at the Pilot operated check valve valve pocket, and the push rod cavity of resorption of Pilot operated check valve links to each other with another active chamber of selector valve by the oil circuit that is located on the change valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200807815U CN201116554Y (en) | 2007-08-24 | 2007-08-24 | Multi-port valve with lock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200807815U CN201116554Y (en) | 2007-08-24 | 2007-08-24 | Multi-port valve with lock |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201116554Y true CN201116554Y (en) | 2008-09-17 |
Family
ID=39991127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2007200807815U Expired - Fee Related CN201116554Y (en) | 2007-08-24 | 2007-08-24 | Multi-port valve with lock |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201116554Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104179749A (en) * | 2014-08-19 | 2014-12-03 | 合肥长源液压股份有限公司 | Hydraulic multi-channel valve for agricultural machine |
CN104653537A (en) * | 2015-01-15 | 2015-05-27 | 四川长江液压件有限责任公司 | Lockable reversing valve |
CN109519429A (en) * | 2018-11-16 | 2019-03-26 | 中国航发西安动力控制科技有限公司 | Change-over valve core |
-
2007
- 2007-08-24 CN CNU2007200807815U patent/CN201116554Y/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104179749A (en) * | 2014-08-19 | 2014-12-03 | 合肥长源液压股份有限公司 | Hydraulic multi-channel valve for agricultural machine |
CN104653537A (en) * | 2015-01-15 | 2015-05-27 | 四川长江液压件有限责任公司 | Lockable reversing valve |
CN104653537B (en) * | 2015-01-15 | 2017-01-11 | 四川长江液压件有限责任公司 | Lockable reversing valve |
CN109519429A (en) * | 2018-11-16 | 2019-03-26 | 中国航发西安动力控制科技有限公司 | Change-over valve core |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101666339B (en) | Hydraulic pressurizer | |
CN102241371B (en) | Hydraulic system applied to multi-spud leg lifting mechanism | |
US7296758B2 (en) | Automatic lift faucet | |
CN201547038U (en) | Hydraulic booster | |
CN201580012U (en) | Hydraulic control system for hydraulic press | |
CN201116554Y (en) | Multi-port valve with lock | |
CN102562686A (en) | Hydraulic system for double-acting supercharger | |
CN205013408U (en) | Differential hydraulic control device is entirely cut to steel scrap | |
CN201250817Y (en) | Pilot control change-over valve group | |
CN201096115Y (en) | Hydraulic combined valve | |
CN201513403U (en) | Multistage cylinder integrated control hydraulic valve group | |
CN201671899U (en) | Hydraulic overflow buffer circuit for mechanical arm | |
CN202100547U (en) | Multipath directional valve | |
CN101387308B (en) | Hydraulic support shaft control valve assembly | |
CN203394737U (en) | Concrete delivery pump integrated valve block with high-and-low voltage switching function | |
CN200989338Y (en) | Integrated hand multipath reversing valve | |
CN201221635Y (en) | Hydraulic spacing elevating valve for dump truck | |
CN2505632Y (en) | Pilot-controlled multi-way reversing valve | |
CN202100551U (en) | Multi-way reversing valve | |
CN202040138U (en) | Multichannel reversing valve | |
CN201794842U (en) | Precontrolled electric one-way speed regulating valve | |
CN104030199A (en) | Forklift hydraulic system with bypass oil way throttling speed regulation loop | |
CN203161701U (en) | Damped speed controllable hydraulic valve bank | |
CN2622451Y (en) | Single handle operated lifting/lowering, steering hydraulic integrated valve | |
CN203081886U (en) | Integral valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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: 20080917 Termination date: 20150824 |
|
EXPY | Termination of patent right or utility model |