CN2859136Y - Manual hydraulic change-over valve - Google Patents
Manual hydraulic change-over valve Download PDFInfo
- Publication number
- CN2859136Y CN2859136Y CN 200520108541 CN200520108541U CN2859136Y CN 2859136 Y CN2859136 Y CN 2859136Y CN 200520108541 CN200520108541 CN 200520108541 CN 200520108541 U CN200520108541 U CN 200520108541U CN 2859136 Y CN2859136 Y CN 2859136Y
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- valve
- twoway
- reversing handle
- handle
- 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
Abstract
A manual hydraulic reversal valve, of which two stainless steel two-way valve are connected by a three-way welded piece. Reversing handle and pivoted arm of the two two-way valve are connected by connecting rod and connecting fork, forming a two-position three-way valve. When push the reversal valve handle, it can maintain one valve conducted and the other closed. The utility model has advantages of simple structure, small size, big flow, easy and reliable control. It can be easily installed on various medium or small wheeled tractors with half-split hydraulic systems.
Description
Technical field
The utility model relates to middle-size and small-size wheeled tractor half separately placed type hydraulic system, especially hand-hydraulic selector valve.
Background technique
The hydraulic system of existing middle-size and small-size wheeled tractor all is half separately placed type, because of there being hydraulic pressure output selector valve, is producing in using very inconveniently, most importantly can not realize multipath hydraulic control, promptly takes a lot of work and wastes hydraulic oil.
Summary of the invention
The purpose of this utility model is for the various middle-size and small-size wheeled tractor that half separately placed type hydraulic system is housed provides a kind of blanket hand-hydraulic selector valve, solves the quick transfer problem of moment of mounting mechanism and hydraulic pressure output various working.
The purpose of this utility model is achieved in that a kind of hand-hydraulic selector valve, it links up two stainless steel Twoway valvess by having externally threaded threeway soldering member, connecting rod, clevis connect together reversing handle, the pivoted arm of two Twoway valvess and form interlock, form a two-position three way hand-hydraulic selector valve.Handle the hand-hydraulic reversing handle, just can realize the quick conversion of mounting mechanism and hydraulic pressure output various working.
The easy manufacturing of the utility model, external form is little, and is easy for installation, can be combined into one easily with valve such as other three-position four-way valve, has that cost is low, the service-strong advantage, is fit to various middle-size and small-size wheeled tractor half separately placed type hydraulic systems and uses.
Description of drawings
Fig. 1 is the utility model plan view;
Fig. 2 is the application schematic representation of the utility model in middle-size and small-size wheeled tractor half separately placed type hydraulic system;
Fig. 3 is the application schematic representation of the utility model in minitype wheeled tractor half separately placed type hydraulic system.
Wherein: 1, Twoway valves (left side); 2, threeway soldering member; 3, Twoway valves (right side); 4, Locating extension spring; 5, reversing handle; 6, connecting rod; 7, locking nut; 8, clevis; 9, connect Xiao; 10, pivoted arm; 11, oil purifier; 12, gear pump; 13, distributor; 14, hand-hydraulic selector valve; 15, three-position four-way valve; 16, two-way cylinder; 17, mounting mechanism oil cylinder; 18, dump ram.
Embodiment
Further specify below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of hand-hydraulic selector valve, the threeway soldering member (2) that has outer rib-loop is tightened Twoway valves (left side) (1) and Twoway valves (right side) (3), link together, reversing handle (5) is housed on Twoway valves (left side) (1), pivoted arm (10) is contained on the Twoway valves (right side) (3), reversing handle (5) and pivoted arm (10) with connecting rod (6), clevis (8), be connected Xiao (9) and couple together, connecting rod (6) and clevis (8) are with locking nut (7) locking.When reversing handle (5) was in the limit on the right-right-hand limit position, Twoway valves (right side) (3) was in fully open position, and Twoway valves (left side) (1) ends; When reversing handle (5) is in the limit on the left position, Twoway valves (left side) (1) standard-sized sheet, Twoway valves (right side) (3) ends.The effect of Locating extension spring (4) is to prevent that reversing handle (5) is shifted and overcommutation voluntarily.
(A) in Fig. 2, Fig. 3 double dot dash line frame uses the utility model to newly establish hydraulic part, and what the double dot dash line frame was outer is the hydraulic system of former tractor.From Fig. 2, Fig. 3 as can be seen the utility model in the structure that does not change original tractor hydraulic system, do not change under the prerequisite of usability of original hydraulic system yet, expand the using scope of original hydraulic system, improved the operating characteristics of original hydraulic system.
In Fig. 2, hydraulic oil is after oil purifier (11) enters gear pump (12), produce high-pressure and hydraulic oil and enter the utility model hand-hydraulic selector valve (14), reversing handle is pushed away left, hydraulic oil enters former tractor distributor (13), and available allocation device (13) control mounting mechanism oil cylinder (17) promotes or descends; When the reversing handle of hand-hydraulic selector valve (14) pushed away to the right, the pressure oil of gear pump (12) entered three-position four-way valve (15), pulls the Joystick of three-position four-way valve (15), can control external two-way cylinder (16) and force to promote or descend.The middle-size and small-size wheeled tractor that has so just solved paddy-field-working promptly will be controlled mounting mechanism at any time and rise and fall, and controls the problem that hydraulic pressure output two-way cylinder is forced lifting again at any time.When without two-way cylinder (16), three-position four-way valve (15) can directly be controlled external dump ram lifting.
Fig. 3 is a kind of application schematic representation of minitype wheeled tractor distributor when adopting oil pipe to connect between the mounting mechanism oil cylinder.When the handle of the utility model hand-hydraulic selector valve (14) is pushed into the mounting mechanism working position left, handles distributor (13) may command mounting mechanism oil cylinder (17) and rise and fall; When hand-hydraulic selector valve (14) handle is pushed into hydraulic pressure output services position to the right, handle distributor (13) may command dump ram (18) lifting.
Claims (1)
1, a kind of hand-hydraulic selector valve, it is characterized in that, threeway soldering member (2) two ends are connecting two stainless steel Twoway valvess (left side) (1) and Twoway valves (right side) (3), the reversing handle (5) on the Twoway valves (left side) (1) and the pivoted arm (10) of Twoway valves (right side) (3) connecting rod (6), clevis (8), connect Xiao (9) and be connected to form a linking mechanism, connecting rod (6) and clevis (8) are with being threaded, open in order to accurately to adjust two Twoway valvess, the interlock position of closing, with locking nut (7) locking, the effect of Locating extension spring (4) is to prevent that reversing handle (5) is shifted and overcommutation voluntarily after harmonizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520108541 CN2859136Y (en) | 2005-06-03 | 2005-06-03 | Manual hydraulic change-over valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520108541 CN2859136Y (en) | 2005-06-03 | 2005-06-03 | Manual hydraulic change-over valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859136Y true CN2859136Y (en) | 2007-01-17 |
Family
ID=37611995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520108541 Expired - Fee Related CN2859136Y (en) | 2005-06-03 | 2005-06-03 | Manual hydraulic change-over valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859136Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196997A (en) * | 2014-09-15 | 2014-12-10 | 山东常林农业装备股份有限公司 | High and low gear engaging mechanism without steel ball positioning for transmissions of tractors and harvesters |
| CN104896140A (en) * | 2015-06-12 | 2015-09-09 | 张元晖 | Oil-gas linkage switching valve and working mode thereof |
-
2005
- 2005-06-03 CN CN 200520108541 patent/CN2859136Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196997A (en) * | 2014-09-15 | 2014-12-10 | 山东常林农业装备股份有限公司 | High and low gear engaging mechanism without steel ball positioning for transmissions of tractors and harvesters |
| CN104896140A (en) * | 2015-06-12 | 2015-09-09 | 张元晖 | Oil-gas linkage switching valve and working mode thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |