CN202203202U - Piling multi-way reversing valve - Google Patents
Piling multi-way reversing valve Download PDFInfo
- Publication number
- CN202203202U CN202203202U CN201120332576XU CN201120332576U CN202203202U CN 202203202 U CN202203202 U CN 202203202U CN 201120332576X U CN201120332576X U CN 201120332576XU CN 201120332576 U CN201120332576 U CN 201120332576U CN 202203202 U CN202203202 U CN 202203202U
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- CN
- China
- Prior art keywords
- valve
- external control
- oil
- valve body
- passage
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- Expired - Fee Related
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Abstract
The utility model discloses a piling multi-way reversing valve which comprises a master valve body. The master valve body comprises an oil inlet sheet, an oil returning sheet and a plurality of sub valve bodies; two valve cores are arranged in each sub valve body; the oil inlet sheet is provided with an external control oil inlet passage and an external control port; the external control oil inlet passage is communicated with the external control port; the oil returning sheet is provided with an external control oil returning passage and an oil returning port; and the external control oil returning passage is communicated with the oil returning port. The piling multi-way reversing valve is characterized in that the sub valve bodies are provided with sectionalized oil returning passages; the oil returning passages are respectively communicated with the external control oil inlet passage and the external control oil returning passage; valve core passages for communicating the sectionalized oil returning passages with one another are arranged in the valve cores; and the valve core passages are annular grooves arranged at the peripheries of the valve cores. Compared with small holes in the valve cores, the annular grooves are more convenient to process and assemble. Compared with the conventional way that one valve body is provided with one valve core, the sub valve bodies of the piling multi-way reversing valve reduce the probability of oil leakage between the valve bodies.
Description
Technical field
The utility model relates to a kind of multi-way valve, especially relates to a kind of piling multiple directional control valve.
Background technique
The effect of selector valve is the change that utilizes valve element position, changes the connection or the off state of each hydraulic fluid port on the valve body, thus the connection of control oil channel, disconnection or change direction.Multiple directional control valve is meant the valve that two or more selector valves are formed.Chinese patent number is that 200820085413.4 utility model patent specification discloses a kind of piling multi-way valve; Its structure is following: four valve bodies are connected together, and spool is arranged in the valve body, and the passage between each valve body links to each other; Between the passway between valve body and the valve body through the sealing mutually of O shape circle; Each valve inner structure nominal size is identical, it is characterized in that the filler opening place is provided with one-way valve; One-way valve comprises check valve spring seat, one-way valve Returnning spring and nonreturn valve core, and filler opening communicates with the aperture and the return opening of four multi-way valve.It has realized beneficial effects such as reliability height, withstand voltage height, long service life.There is following problem in the multi-way valve of this structure: process cumbersomely, aperture is yielding during assembling, and the many and leakage of oil easily of valve block.
Summary of the invention
The utility model technical problem to be solved provides a kind of piling multiple directional control valve easy to process.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of piling multiple directional control valve; Comprise total valve body, include oil-feed sheet, oil return sheet in described total valve body and divide valve body more than two, be provided with two spools in described each branch valve body; Described oil-feed sheet is provided with external control oil inlet passage and outside control mouth; The external control oil inlet passage communicates with outside control mouth, and described oil return sheet is provided with external control drainback passage and return opening, and the external control drainback passage communicates with return opening; It is characterized in that described minute valve body is provided with the drainback passage of segmentation; Described drainback passage communicates with described external control oil inlet passage and external control drainback passage respectively, is provided with the valve core channel that the drainback passage of segmentation is connected each other in the described spool, and described valve core channel is to be arranged on the peripheral annular groove of spool.
Valve body was 2 in described minute.
Be provided with star-like seal ring between the passway of described two branch valve bodies.
Compared with prior art, the advantage of the utility model is that valve core channel is to be arranged on the peripheral annular groove of spool, and when annular groove on all spools and drainback passage connection, outside control mouth communicates with return opening.When arbitrary spool wherein moves a stroke, annular groove and drainback passage dislocation, outside control mouth and return opening cut-out.Annular groove is compared the aperture on the spool, processes and assemble more convenient.
Compare the way that a traditional valve body is provided with a spool, the branch valve body of the utility model has reduced the probability of leakage of oil between the valve body.
Description of drawings
Fig. 1 is the structural drawing of the utility model;
Fig. 2 is the sectional view of the utility model;
Fig. 3 is the structural drawing of the spool of the utility model;
Fig. 4 is the sectional view of the star-like seal ring of the utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
A kind of piling multiple directional control valve comprises total valve body 1, includes oil-feed sheet 2, oil return sheet 3 and two or three branch valve bodies 4 in total valve body 1; Be provided with two spools 5 in each branch valve body 4, oil-feed sheet 2 is provided with external control oil inlet passage 21, and outside control mouth 8 communicates with external control oil inlet passage 21; Oil return sheet 3 is provided with external control drainback passage 31; Return opening 9 communicates with external control drainback passage 31, and the drainback passage 6 that divides valve body 4 to be provided with segmentation, drainback passage 6 communicate with external control oil inlet passage 21 and external control drainback passage 31 respectively; Be provided with the valve core channel 51 that the drainback passage 6 of segmentation is connected each other in the spool 5, valve core channel 51 is for being arranged on the annular groove of spool 5 peripheries.
Be provided with star-like seal ring 7 between the passway of two branch valve bodies 4.
After spool moved a stroke, outside control mouth 8 cut off with return opening 9, and external relief valve produces pressure, and pressure is passed corresponding outer oil-collecting hole such as A1 through the P oral instructions, and interface of the external oil cylinder of A1 makes oil cylinder to an end motion.When spool after the other end moves a stroke, pressure is passed the outer oil-collecting hole such as the B1 of the other end through the P oral instructions, another interface of the external oil cylinder of B1 makes oil cylinder move to the other end.
When spool during at meta, the outside control mouth 8 that links to each other with main relief valve communicates with return opening 9 and makes system be in unloading condition, has not only protected system and device, has also practiced thrift the energy.
Claims (3)
1. piling multiple directional control valve; Comprise total valve body, include oil-feed sheet, oil return sheet in described total valve body and divide valve body more than 2, be provided with two spools in described each branch valve body; Described oil-feed sheet is provided with external control oil inlet passage and outside control mouth; The external control oil inlet passage communicates with outside control mouth, and described oil return sheet is provided with external control drainback passage and return opening, and the external control drainback passage communicates with return opening; It is characterized in that described minute valve body is provided with the drainback passage of segmentation; Described drainback passage communicates with described external control oil inlet passage and external control drainback passage respectively, is provided with the valve core channel that the drainback passage of segmentation is connected each other in the described spool, and described valve core channel is to be arranged on the peripheral annular groove of spool.
2. a kind of piling multiple directional control valve according to claim 1 is characterized in that described minute valve body is 2.
3. a kind of piling multiple directional control valve according to claim 2 is characterized in that being provided with star-like seal ring between the passway of described two branch valve bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120332576XU CN202203202U (en) | 2011-09-06 | 2011-09-06 | Piling multi-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120332576XU CN202203202U (en) | 2011-09-06 | 2011-09-06 | Piling multi-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202203202U true CN202203202U (en) | 2012-04-25 |
Family
ID=45967324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120332576XU Expired - Fee Related CN202203202U (en) | 2011-09-06 | 2011-09-06 | Piling multi-way reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202203202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481951A (en) * | 2014-12-05 | 2015-04-01 | 西安航空动力控制科技有限公司 | Multi-way valve spool |
-
2011
- 2011-09-06 CN CN201120332576XU patent/CN202203202U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481951A (en) * | 2014-12-05 | 2015-04-01 | 西安航空动力控制科技有限公司 | Multi-way valve spool |
| CN104481951B (en) * | 2014-12-05 | 2016-08-24 | 西安航空动力控制科技有限公司 | A kind of spool of banked direction control valves |
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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: 20120425 Termination date: 20140906 |
|
| EXPY | Termination of patent right or utility model |