CN2224944Y - Hydraulic multi-channel switching valve - Google Patents
Hydraulic multi-channel switching valve Download PDFInfo
- Publication number
- CN2224944Y CN2224944Y CN 94202218 CN94202218U CN2224944Y CN 2224944 Y CN2224944 Y CN 2224944Y CN 94202218 CN94202218 CN 94202218 CN 94202218 U CN94202218 U CN 94202218U CN 2224944 Y CN2224944 Y CN 2224944Y
- Authority
- CN
- China
- Prior art keywords
- valve
- selector valve
- selector
- oil
- hydraulic fluid
- 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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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a hydraulic multi-channel reversing valve which is an entirety connected by a selecting valve group comprising a spill valve, a reversing valve, a one-way valve and one or more than one selecting valves. The oil enters the one-way valve through the reversing valve from the oil inlet of the spill valve, and a V oil port of the one-way valve is connected with a load, and a B 1 oil port of the reversing valve is connected with a C oil port of the selecting valve group, and the selecting valve group and the return oil port of the one-way valve are connected with a support oil cylinder. The return oil line of the selecting valve group enters an oil tank through oil ports of the reversing valve and the spill valve. The hydraulic multi-channel reversing valve is used for the hydraulic system of the autohoist to control the expansion and contraction of the autohoist and the support oil cylinder of the industrial vehicle. The hydraulic multi-channel reversing valve is safe and reliable, the hydraulic multi-channel reversing valve has a compact structure and a small volume, and the hydraulic multi-channel reversing valve can control any support as required and is easy to repair.
Description
The utility model relates to a kind of hydraulic control valve, and hydraulic multichannel conversion valve is mainly used in truck crane, the hydraulic system of engineering vehicle, Control of Automobile hoist, engineering vehicle support oil cylinder flexible.
External truck cranes etc. are gone up the hydrovalve that uses, and its precision height costs an arm and a leg.And domestic employed hydrovalve. its control range is little, and function singleness can not be regulated the flexible of engineering vehicle supporting leg according to actual needs and arbitrarily.
The purpose of this utility model is to provide a kind of hydraulic multichannel conversion valve, its compact structure, multiple functional, reduce cost, easy to use, can be according to using any control set for adjusting of needs to satisfy different requirements.
The utility model is achieved in that with relief valve, selector valve, one-way valve with by the selector valve group that and more than one selector valve are formed and is linked to be an integral body, constitutes hydraulic multichannel conversion valve.The oil-feed of P filler opening enters one-way valve through selector valve from the relief valve, and the V hydraulic fluid port connects load on the one-way valve, B on the selector valve
1Hydraulic fluid port is connected A on each return opening on the selector valve group and the one-way valve with C hydraulic fluid port on the selector valve group
1Return opening connects operating cyloinder, and the oil circuit on the selector valve group is 0 hydraulic fluid port oil sump tank on selector valve and relief valve.
Fig. 1. the utility model structural representation.
Fig. 2. the utility model oil channel structures schematic representation.
Fig. 3. the structure of relief valve schematic representation.
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
Three hydraulic fluid port C, A are arranged on the selector valve (4)
2, B
2, two return opening A are arranged on the selector valve (5)
3, B
3Three identical selector valves (5) are combined into the selector valve group with a selector valve (4).
One-way valve (3), on have the V hydraulic fluid port to connect car multi-way valve, A
1Hydraulic fluid port connects the truck crane support oil cylinder respectively.
Selector valve (2) is three six logical valves for general use, is manually operated type.On hydraulic fluid port B is arranged
1Above-mentioned other parts are all same as the prior art not to be described in detail.
On the valve body (6) of relief valve (1) the four-way hole is arranged, in addition the two spiral shell through holes that communicate with valve body (6) clear opening.The valve pocket (7) that oilhole is arranged on the circular cylindrical perimeter wall; The spool (8) that has spring (9) is installed in the shoulder hole in the middle of it.
Earlier the valve pocket (7) of belt spool (8) is put into valve body (6) hole; and an end and the poppet valve seat (10) of the spring (9) in the spool (8) are linked into an integrated entity; to be fixed on the valve body (6) with screw thread with adjusting the lid (13) of screw (15) again, and screw on nut (14) and protectiveness block (16) and seal ring (12) again and constitute relief valve (1) with poppet valve seat (10).
With four bolts, nut, packing ring, relief valve (1), selector valve (2), one-way valve (3), the selector valve group be made up of selector valve (4) and three selector valves (5) are connected into holistic hydraulic multichannel conversion valve.
Hydraulic fluid port A on selector valve (4), (5)
2, A
3, A
4, A
5, B
2, B
3, B
4, B
5Connect the oil cylinder of truck crane four supporting legs respectively.Oil inlet P on the relief valve (1) is connected with the system liquid press pump, and the return opening O on it is connected with the system oil return pipe.
During use, enter one-way valve (3) by selector valve (2),, make pressure oil by B if at this moment selector valve (2) valve rod is in the position of drawing from the oil-feed of relief valve (1) P filler opening
1Mouth arrives the C mouth on the selector valve (4), and the valve rod that at this moment manually promotes selector valve (4) at this moment passes through A to the position of drawing
2(A
3, A
4, A
5) hydraulic fluid port feeds (or one a group) support oil cylinder epicoele with pressure oil output, if selector valve (4) valve rod is in the position that pushes away, at this moment passes through B
2(B
3, B
4, B
5) hydraulic fluid port with pressure oil output feed another (or one group) support oil cylinder epicoele meanwhile one-way valve (3) open: the oil return of oil cylinder is all through A
1Mouth and O mouth enter fuel tank, and supporting leg stretches out.
If selector valve (2) valve rod is in the position that pushes away, pressure oil is through A
1Mouth enters the support oil cylinder cavity of resorption, and when selector valve (4) valve rod is in the position of drawing, the oil return of oil cylinder is respectively through A
2, A
3, A
4, A
5By C mouth and B
1Mouthful enter fuel tank by the O mouth, when selector valve (4) valve rod is in the position that pushes away, the oil return of oil cylinder is respectively through B
2, B
3, B
4, B
5By C mouth and B
1Mouth enters fuel tank by the O mouth, finishes supporting leg and shrinks.
The utility model is compared with prior art: so the overflow valve in the multiple directional control valve adopts screw thread to insert Dress formula structure, on the valve body each in addition part all be to adopt to be threaded, so valve arrangement is simple, easy-maintaining, Dismounting, and this valve is a combination valve, its compact conformation, volume be little, reduce cost, can be according to need Want Optional assembling. Because selector valve is connected with each support oil cylinder, if will handle variant supporting leg or any One supporting leg only needs with hand propelled or spurs the valve rod of each selector valve, or with hand propelled or pulling reversal valve Valve rod just can operate, and is easy to use, flexible. Because the valve that will handle each supporting leg action makes up, concentrates on Together, convenient operation, maintenance. Because each runner of compact conformation can not gone here and there the phenomenon in chamber yet, therefore Safety, reliable.
Claims (3)
1. hydraulic multichannel conversion valve is characterized in that:
A. by relief valve (1), selector valve (2), one-way valve (3) be linked to be an integral body by the selector valve group that and more than one selector valve are formed and constitute;
B. go up the oil-feed of P filler opening from relief valve (1) and enter one-way valve (3) through selector valve (2), one-way valve (3) is gone up the V hydraulic fluid port and is connect load, B on the selector valve
1Hydraulic fluid port is connected the A on each hydraulic fluid port on the selector valve group and the one-way valve (3) with C hydraulic fluid port on the selector valve group
1Hydraulic fluid port connects operating cyloinder, and the oil circuit on the selector valve group is through selector valve (2) and the last 0 hydraulic fluid port oil sump tank of relief valve (1).
2. selector valve according to claim 1 is characterized in that on the selector valve (4) C, A being arranged
2, B
3Three hydraulic fluid ports have two return opening A on the selector valve (5)
3, B
3, three identical selector valves (5) are combined into the selector valve group with a selector valve (4).
3. selector valve according to claim 1, it is characterized in that relief valve (1) puts into valve body (6) hole by the valve pocket (7) of belt spool (8), one end of the spring (9) in the spool (8) is connected with poppet valve seat (10), the lid (13) that band is adjusted screw (15) and poppet valve seat (10) is fixed on the valve body (6) with screw thread, is rotary with nut (14), block (16) and seal ring (12) and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94202218 CN2224944Y (en) | 1994-01-24 | 1994-01-24 | Hydraulic multi-channel switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94202218 CN2224944Y (en) | 1994-01-24 | 1994-01-24 | Hydraulic multi-channel switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224944Y true CN2224944Y (en) | 1996-04-17 |
Family
ID=33822054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94202218 Expired - Fee Related CN2224944Y (en) | 1994-01-24 | 1994-01-24 | Hydraulic multi-channel switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224944Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100480517C (en) * | 2003-06-19 | 2009-04-22 | 谢莱夫特奥北方液压股份公司 | Support leg valve |
| CN101482186B (en) * | 2009-01-06 | 2010-04-21 | 竺浩君 | Manual and automatic control axial flow distribution reversing rotary valve |
| CN102094861A (en) * | 2010-12-02 | 2011-06-15 | 徐州重型机械有限公司 | Multi-pump concurrent flow hydraulic system for crane and concurrent valve bank |
| CN101761516B (en) * | 2009-12-18 | 2012-07-25 | 竺浩君 | Step-down multi-path reversing valve |
| CN104196797A (en) * | 2014-08-19 | 2014-12-10 | 合肥长源液压股份有限公司 | Integral multiway valve with integral hydraulic locks and fouling resistant plug-in mounting overflow valve |
| CN104343760A (en) * | 2013-08-08 | 2015-02-11 | 奉化液压件三厂(普通合伙) | Unloading multiple directional control valve |
| CN106246621A (en) * | 2016-08-19 | 2016-12-21 | 常德中联重科液压有限公司 | Hydraulic circuit and engineering machinery for engineering machinery |
| CN111997952A (en) * | 2020-06-24 | 2020-11-27 | 合肥长源液压股份有限公司 | Integral multi-way valve for supporting leg oil cylinder of chassis of engineering machinery automobile |
-
1994
- 1994-01-24 CN CN 94202218 patent/CN2224944Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100480517C (en) * | 2003-06-19 | 2009-04-22 | 谢莱夫特奥北方液压股份公司 | Support leg valve |
| CN101482186B (en) * | 2009-01-06 | 2010-04-21 | 竺浩君 | Manual and automatic control axial flow distribution reversing rotary valve |
| CN101761516B (en) * | 2009-12-18 | 2012-07-25 | 竺浩君 | Step-down multi-path reversing valve |
| CN102094861A (en) * | 2010-12-02 | 2011-06-15 | 徐州重型机械有限公司 | Multi-pump concurrent flow hydraulic system for crane and concurrent valve bank |
| CN102094861B (en) * | 2010-12-02 | 2013-04-10 | 徐州重型机械有限公司 | Multi-pump concurrent flow hydraulic system for crane and concurrent valve bank |
| CN104343760A (en) * | 2013-08-08 | 2015-02-11 | 奉化液压件三厂(普通合伙) | Unloading multiple directional control valve |
| CN104196797A (en) * | 2014-08-19 | 2014-12-10 | 合肥长源液压股份有限公司 | Integral multiway valve with integral hydraulic locks and fouling resistant plug-in mounting overflow valve |
| CN106246621A (en) * | 2016-08-19 | 2016-12-21 | 常德中联重科液压有限公司 | Hydraulic circuit and engineering machinery for engineering machinery |
| CN106246621B (en) * | 2016-08-19 | 2017-12-29 | 常德中联重科液压有限公司 | Hydraulic circuit and engineering machinery for engineering machinery |
| CN111997952A (en) * | 2020-06-24 | 2020-11-27 | 合肥长源液压股份有限公司 | Integral multi-way valve for supporting leg oil cylinder of chassis of engineering machinery automobile |
| CN111997952B (en) * | 2020-06-24 | 2022-08-30 | 合肥长源液压股份有限公司 | Integral multi-way valve for supporting leg oil cylinder of chassis of engineering machinery automobile |
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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 |