CN203082268U - Three-loop logical valve - Google Patents
Three-loop logical valve Download PDFInfo
- Publication number
- CN203082268U CN203082268U CN 201220668144 CN201220668144U CN203082268U CN 203082268 U CN203082268 U CN 203082268U CN 201220668144 CN201220668144 CN 201220668144 CN 201220668144 U CN201220668144 U CN 201220668144U CN 203082268 U CN203082268 U CN 203082268U
- Authority
- CN
- China
- Prior art keywords
- valve
- rear end
- valve seat
- return opening
- loop logical
- 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
The utility model relates to the valve technical field, in particular to a three-loop logical valve. The three-loop logical valve comprises a valve base, a valve sleeve and a valve core, wherein the valve base is composed of a groove-shaped seat opening in the front end and a cavity at the rear end; the valve sleeve is composed of a concave sleeve opening in the front end and a return opening structure at the rear end and is inserted into the groove-shaped seat opening at the front end; and the outer diameter at the front end of the valve core is matched with the inner diameter of the concave sleeve opening of the valve sleeve, and the outer diameter at the rear end of the valve core is matched with the return opening structure of the valve sleeve. The three-loop logical valve is simple in structure, high in function pertinence, low in cost, and safe and stable in work.
Description
Technical field
The utility model relates to a kind of valve technology field, especially a kind of three loop logical valves.
Technical background
Shuttle valve is to belong to straight stroke valve, is the unite two into one valve of body of valve body and final controlling element.Its advantage volume is little, easy for installation; The tradition shuttle valve has much room for improvement on simple in structure and function specific aim relatively.
The model utility content
The purpose of this utility model provide a kind of simple in structure, function is with strong points and stable and reliable operation three loop logical valves, is intended to solve above-mentioned practical problem.
To achieve these goals, the utility model adopts following technological scheme:
A kind of three loop logical valves comprise:
Valve seat is made of the groove shaped seat mouth of front end and the cavity of rear end; With
Valve pocket is made up of the spill running-on of front end and the return opening structure of rear end, is plugged on the groove shaped seat mouth place of valve seat front end; And
Spool, the external diameter of front end and valve pocket spill running-on internal diameter are complementary, and the external diameter of rear end and valve pocket return opening structure are complementary.
Preferably, described spool links to each other with valve seat by a spring.
Preferably, described spool front end cooperates the formation oil outlet with the spill running-on of valve pocket front end.
Preferably, the return opening respective outer side edges of described spool rear end and valve pocket rear end constitutes return opening.
Preferably, described spool bottom is provided with cross bore and links to each other with valve seat rear end cavity by cross bore.
Preferably, be provided with the valve seat hydraulic fluid port that communicates with the cavity of valve seat rear end bottom the described valve seat.
Owing to adopted such scheme, the utility model is simple in structure, function is with strong points, cost is low, and safety and stability works together.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the structural representation of valve seat of the present utility model;
Fig. 3 is the structural representation of spool of the present utility model;
Fig. 4 is the structural representation of valve pocket of the present utility model.
Wherein: 1, valve seat; 11, groove shaped seat mouth; 12, cavity; 2, valve pocket; 21, spill running-on; 3, spool; 4, oil outlet; 5, return opening; 6, valve seat hydraulic fluid port.
Embodiment
As shown in Figure 1, present embodiment the utility model discloses a kind of three loop logical valves, comprising: the valve seat 1 that constitutes by front end groove shaped seat mouth 11 and rear end cavity 12; With the valve pocket of being made up of front end spill running-on 21 and rear end return opening structure 2, valve pocket 2 is plugged on valve seat 1 front end groove shaped seat mouth 11 places; And spool 3, spill running-on 21 internal diameters of spool 3 front end external diameters and valve pocket 2 are complementary, and the return opening structure of spool 3 rear end external diameters and valve pocket 2 is complementary; Spool 3 links to each other with valve seat 1 by a spring; Spool 3 front ends cooperate formation oil outlet 4 with the spill running-on 21 of valve pocket 2; The rear end return opening respective outer side edges of spool 3 rear ends and valve pocket 2 constitutes return opening 5; Spool 3 bottoms are provided with cross bore and link to each other with the rear end cavity 12 of valve seat 1 by cross bore; Valve seat 1 bottom is provided with the valve seat hydraulic fluid port 6 that communicates with the rear end cavity 12 of valve seat 1.
Particularly, oil outlet 4 connects oil pump, return opening 5 connected tanks, valve seat hydraulic fluid port 6 order acting cylinder (resetting certainly) rodless cavities; Pump start, promoting spool 3 when oil outlet 4 has pressure oil to come in moves, fluid enters the rear end cavity 12 arrival valve seat hydraulic fluid ports 6 of valve seat 1 by the cross bore of spool 3 bottoms, one-way cylinder begins to rise, spool 3 blocks the return opening 5 of side simultaneously, return opening 5 no fluid flow out, and finish the vertical motion of oil cylinder.When oil pump stops, oil outlet 4 no pressure, spool 3 resets under the effect of spring force, oil outlet 4 and return opening 5, valve seat hydraulic fluid port 6 separate, single-acting cylinder begins to reset under the ordering about of self reposition force (spring force or gravity etc.), the fluid of rodless cavity flows to valve seat hydraulic fluid port 6, and the return opening 5 by the side flows back to fuel tank, finishes the down maneuver of oil cylinder.Simple in structure, function is with strong points, cost is low, safety and stability works together.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (6)
1. a loop logical valve is characterized in that, comprising:
Valve seat is made of the groove shaped seat mouth of front end and the cavity of rear end; With
Valve pocket is made up of the spill running-on of front end and the return opening structure of rear end, is plugged on the groove shaped seat mouth place of valve seat front end; And
Spool, the external diameter of front end and valve pocket spill running-on internal diameter are complementary, and the external diameter of rear end and valve pocket return opening structure are complementary.
2. a kind of three loop logical valves as claimed in claim 1 is characterized in that, described spool links to each other with valve seat by a spring.
3. a kind of three loop logical valves as claimed in claim 2 is characterized in that, described spool front end cooperates the formation oil outlet with the spill running-on of valve pocket front end.
4. a kind of three loop logical valves as claimed in claim 3 is characterized in that, the return opening respective outer side edges of described spool rear end and valve pocket rear end constitutes return opening.
5. a kind of three loop logical valves as claimed in claim 4 is characterized in that, described spool bottom is provided with cross bore and links to each other with valve seat rear end cavity by cross bore.
6. a kind of three loop logical valves as claimed in claim 5 is characterized in that, described valve seat bottom is provided with the valve seat hydraulic fluid port that communicates with the cavity of valve seat rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668144 CN203082268U (en) | 2012-12-07 | 2012-12-07 | Three-loop logical valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668144 CN203082268U (en) | 2012-12-07 | 2012-12-07 | Three-loop logical valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082268U true CN203082268U (en) | 2013-07-24 |
Family
ID=48828106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220668144 Expired - Fee Related CN203082268U (en) | 2012-12-07 | 2012-12-07 | Three-loop logical valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413072A (en) * | 2018-05-23 | 2018-08-17 | 徐楠 | Gravity switching valve |
| CN113090604A (en) * | 2021-04-07 | 2021-07-09 | 海明液压技术有限公司 | 1D cavity type multifunctional intelligent control rotary valve functional module unit |
-
2012
- 2012-12-07 CN CN 201220668144 patent/CN203082268U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413072A (en) * | 2018-05-23 | 2018-08-17 | 徐楠 | Gravity switching valve |
| CN113090604A (en) * | 2021-04-07 | 2021-07-09 | 海明液压技术有限公司 | 1D cavity type multifunctional intelligent control rotary valve functional module unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen San Hao Science and Technology Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20181207 |