CN204253906U - A kind of Novel hydraulic valve - Google Patents
A kind of Novel hydraulic valve Download PDFInfo
- Publication number
- CN204253906U CN204253906U CN201420721912.3U CN201420721912U CN204253906U CN 204253906 U CN204253906 U CN 204253906U CN 201420721912 U CN201420721912 U CN 201420721912U CN 204253906 U CN204253906 U CN 204253906U
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- CN
- China
- Prior art keywords
- piston
- valve body
- valve
- utility
- model
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010773 plant oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a kind of Novel hydraulic valve, comprises valve body, and one end of described valve body is provided with the first liquid entering hole, and the other end is provided with the second liquid entering hole, and lower end is provided with liquid outlet; Valve pocket is provided with in valve body, spool is provided with in described valve pocket, the two ends of described spool are with piston, in the end of two pistons, centering is provided with first piston bar and the second piston rod respectively, have spring at first piston bar and the second upper cover of piston rod, the two ends difference contact of described spring is on the end face of two pistons; Seal ring and back-up ring are installed between described piston and valve body.The utility model, by seal ring is combined use with back-up ring, improves the sealing effect of piston in valve pocket, prevents fluid from leaking toward low pressure area from zone of high pressure; By arranging spring, reducing the vibration of system, improving stability.
Description
Technical field
The utility model relates to valve technology field, particularly relates to a kind of Novel hydraulic valve.
Background technique
Hydrovalve is the Automation Elements of a kind of pressure oil operation, and it is by the control of voltage distribution valve pressure oil, and usual and electromagnetic distributing valve combinationally uses, and can be used for the break-make of distant control water power plant oil, gas, water piping system.Be usually used in the oil circuits such as clamping, control, lubrication.One-way valve and selector valve is divided into by purposes.One-way valve: only allow fluid unidirectional connection in the duct, oppositely namely cut off.Selector valve: change the switching relation between different pipeline.Two, three etc. are divided according to the working position number of spool in valve body; Two logical, threeway, four-way, five-way etc. are divided according to controlled port number; Divide manually according to spool driving mode, motor-driven, electronic, surge.But the spool of hydrovalve of the prior art, in moving process, easily produces leakage, simultaneously when oil pressure is excessive, vibrations can be produced.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of Novel hydraulic valve.
The utility model is achieved through the following technical solutions:
A kind of Novel hydraulic valve, comprise valve body, valve pocket is provided with in valve body, spool is provided with in described valve pocket, the two ends of described spool are with piston, in the end of two pistons, centering is provided with first piston bar and the second piston rod respectively, has spring at first piston bar and the second upper cover of piston rod, and the two ends difference contact of described spring is on the end face of two pistons; Seal ring and back-up ring are installed between described piston and valve body.
As optimal technical scheme of the present utility model, the two ends of described piston are provided with chamfering.
As optimal technical scheme of the present utility model, one end of described valve body is provided with the first liquid entering hole, and the other end is provided with the second liquid entering hole, and lower end is provided with liquid outlet.
Compared with prior art, the beneficial effects of the utility model are: the utility model, by seal ring is combined use with back-up ring, improves the sealing effect of piston in valve pocket, prevents fluid from leaking toward low pressure area from zone of high pressure; By arranging spring, reducing the vibration of system, improving stability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-valve body; 2-valve pocket; 3-piston; 4-first piston bar; 5-second piston rod; 6-spring; 7-chamfering; 8-seal ring; 9-back-up ring.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is structural representation of the present utility model.
Described a kind of Novel hydraulic valve, comprise valve body 1, valve pocket 2 is provided with in valve body 1, spool is provided with in described valve pocket 2, the two ends of described spool are with piston 3, in the end of two pistons 3, centering is provided with first piston bar 4 and the second piston rod 5 respectively, and on first piston bar 4 and the second piston rod 5, cover has spring 6, and the two ends difference contact of described spring 6 is on the end face of two pistons 3; The two ends of described piston 3 are provided with chamfering 7, are provided with seal ring 8 and back-up ring 9 between described piston 3 and valve body 1.
One end of described valve body 1 is provided with the first liquid entering hole A, and the other end is provided with the second liquid entering hole B, and lower end is provided with liquid outlet P.When the first liquid entering hole A connect high pressure, the second liquid entering hole B connect low pressure time, spool be pushed under the effect of two ends pressure reduction the right, the first liquid entering hole A is blocked outlet by piston 3, liquid outlet P connect with the first liquid entering hole A; Otherwise, when the second liquid entering hole B connect high pressure, the first liquid entering hole A connect low pressure time, the first liquid entering hole A is blocked outlet by piston 3, and liquid outlet P and the second liquid entering hole B connects.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a Novel hydraulic valve, comprise valve body (1), valve pocket (2) is provided with in valve body (1), described valve pocket is provided with spool in (2), the two ends of described spool are with piston (3), it is characterized in that: centering is provided with first piston bar (4) and the second piston rod (5) respectively in the end of two pistons (3) having spring (6) at first piston bar (4) and the upper cover of the second piston rod (5), the two ends difference contact of described spring (6) is on the end face of two pistons (3); Seal ring (8) and back-up ring (9) are installed between described piston (3) and valve body (1).
2. a kind of Novel hydraulic valve according to claim 1, is characterized in that: the two ends of described piston (3) are provided with chamfering (7).
3. a kind of Novel hydraulic valve according to claim 1, is characterized in that: one end of described valve body (1) is provided with the first liquid entering hole (A), and the other end is provided with the second liquid entering hole (B), and lower end is provided with liquid outlet (P).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420721912.3U CN204253906U (en) | 2014-11-27 | 2014-11-27 | A kind of Novel hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420721912.3U CN204253906U (en) | 2014-11-27 | 2014-11-27 | A kind of Novel hydraulic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253906U true CN204253906U (en) | 2015-04-08 |
Family
ID=52958213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420721912.3U Expired - Fee Related CN204253906U (en) | 2014-11-27 | 2014-11-27 | A kind of Novel hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253906U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107821556A (en) * | 2017-11-06 | 2018-03-23 | 广东德福隆生物科技有限公司 | A kind of one drag two extruder |
| CN110145616A (en) * | 2019-04-22 | 2019-08-20 | 杭州神林电子有限公司 | A mechanical switching device |
-
2014
- 2014-11-27 CN CN201420721912.3U patent/CN204253906U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107821556A (en) * | 2017-11-06 | 2018-03-23 | 广东德福隆生物科技有限公司 | A kind of one drag two extruder |
| CN110145616A (en) * | 2019-04-22 | 2019-08-20 | 杭州神林电子有限公司 | A mechanical switching device |
| CN110145616B (en) * | 2019-04-22 | 2025-02-14 | 杭州神林电子有限公司 | A mechanical switching device |
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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: 20150408 Termination date: 20181127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |