CN201420717Y - Overflow valve - Google Patents
Overflow valve Download PDFInfo
- Publication number
- CN201420717Y CN201420717Y CN2009200738922U CN200920073892U CN201420717Y CN 201420717 Y CN201420717 Y CN 201420717Y CN 2009200738922 U CN2009200738922 U CN 2009200738922U CN 200920073892 U CN200920073892 U CN 200920073892U CN 201420717 Y CN201420717 Y CN 201420717Y
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- CN
- China
- Prior art keywords
- cone
- valve
- utility
- model
- guide rod
- 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 discloses an overflow valve comprising a seal retaining ring, a cone valve, a spring seat, a compressed spring, a valve body, a pressure adjusting screw rod, a pressure adjusting screw nut and a lock nut. The utility model is characterized in that the cone valve consists of a cone and a guide rod on the tip part of the cone, and the cone and the guide rod are in an integrated structure. The control stability and the pressure adjusting accuracy of the overflow valve are improved by replacing a common cone valve core with the cone valve structure.
Description
Technical field
The utility model relates to the valve that a kind of pressure control is used, and particularly relates to a kind of relief valve.
Background technique
Valve is an indispensable unit in hydraulic transmission and the control system, specification, kind are a lot, wherein relief valve is used in the pressure control aspect usually, and existing relief valve for example direct-acting overflow valve under the spring pressure effect on the poppet valve core, come controlling liquid pressure by spring by screw press Regulation spring pressure.This structural type can only be applicable to the occasion that requires control accuracy lower because pilot pressure stability and pressure regulation ratio of precision that the structural feature of poppet valve core is led are lower.
The model utility content
The purpose of this utility model is that a kind of level pressure stable performance will be provided, the novel relief valve that the pressure regulation ratio of precision is higher.This relief valve can adopt following technological scheme to implement: it comprises Sealing shield ring, cone valve, spring seat, stage clip, valve body, screw press, look nut and locking nut, wherein Sealing shield ring is contained in the Sealing shield ring groove on the valve body, cone valve is contained in the inner chamber of valve body, spring seat is contained on the projection of conical section of cone valve, stage clip is contained on the spring seat, screw press is enclosed within on the stage clip and is contained in the inner chamber of valve body, connect with valve body by look nut, locking nut also is housed on the end face of look nut.
Above-mentioned said cone valve is made up of the guide rod on cone and the cone tip portion, and guide rod and cone two parts are integral structure.All the other component and structural type are same as the prior art or similar, and the utility model is not described further.
The utility model compared with prior art, its main feature is owing to set up guide rod on the cone tip portion of poppet valve core, thereby has improved the control stability and the pressure regulation precision of relief valve.
Description of drawings
Fig. 1, structure of relief valve schematic representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Relief valve of the present utility model comprises Sealing shield ring 1, cone valve 2, spring seat 3, stage clip 4, valve body 5, screw press 6, look nut 7 and locking nut 8 as shown in Figure 1, wherein Sealing shield ring 1 is contained in the Sealing shield ring groove on the valve body, cone valve 2 is contained in the inner chamber of valve body 5, spring seat 3 is contained on the projection of conical section of cone valve, stage clip is contained on the spring seat 3, screw press 6 is enclosed within on the stage clip and is contained in the inner chamber of valve body 2, connect with valve body by look nut 7, locking nut 8 also is housed on the end face of look nut.
The working principle of relief valve of the present utility model and existing relief valve are same or similar.
Claims (1)
1, a kind of relief valve comprises Sealing shield ring (1), cone valve (2), spring seat (3), stage clip (4), valve body (5), screw press (6), look nut (7) and locking nut (8), it is characterized in that cone valve (2) is made up of the guide rod on cone and the cone tip portion, guide rod and cone two parts are integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200738922U CN201420717Y (en) | 2009-05-12 | 2009-05-12 | Overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200738922U CN201420717Y (en) | 2009-05-12 | 2009-05-12 | Overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201420717Y true CN201420717Y (en) | 2010-03-10 |
Family
ID=41807369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200738922U Expired - Fee Related CN201420717Y (en) | 2009-05-12 | 2009-05-12 | Overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201420717Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878301A (en) * | 2011-07-12 | 2013-01-16 | 上海立新液压有限公司 | Overflow valve with detachable valve sleeve |
| CN103291679A (en) * | 2013-06-04 | 2013-09-11 | 浙江大学 | Low-hysteresis overflow valve |
| CN106438583A (en) * | 2016-10-11 | 2017-02-22 | 上海航天控制技术研究所 | Novel large-flow and small-inner-leakage-flow direct-acting type overflow valve |
| CN108758065A (en) * | 2018-08-28 | 2018-11-06 | 油威力液压科技股份有限公司 | Digital big flow electric rotating machine drives ball screw type direct acting overflow valve |
| CN110878777A (en) * | 2019-11-28 | 2020-03-13 | 宁波文泽机电技术开发有限公司 | Pressure control valve |
| CN111089094A (en) * | 2019-12-25 | 2020-05-01 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Pressure release valve with adjusting device capable of suppressing squeaking |
-
2009
- 2009-05-12 CN CN2009200738922U patent/CN201420717Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878301A (en) * | 2011-07-12 | 2013-01-16 | 上海立新液压有限公司 | Overflow valve with detachable valve sleeve |
| CN103291679A (en) * | 2013-06-04 | 2013-09-11 | 浙江大学 | Low-hysteresis overflow valve |
| CN103291679B (en) * | 2013-06-04 | 2015-07-15 | 浙江大学 | Low-hysteresis overflow valve |
| CN106438583A (en) * | 2016-10-11 | 2017-02-22 | 上海航天控制技术研究所 | Novel large-flow and small-inner-leakage-flow direct-acting type overflow valve |
| CN108758065A (en) * | 2018-08-28 | 2018-11-06 | 油威力液压科技股份有限公司 | Digital big flow electric rotating machine drives ball screw type direct acting overflow valve |
| CN110878777A (en) * | 2019-11-28 | 2020-03-13 | 宁波文泽机电技术开发有限公司 | Pressure control valve |
| CN111089094A (en) * | 2019-12-25 | 2020-05-01 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Pressure release valve with adjusting device capable of suppressing squeaking |
| CN111089094B (en) * | 2019-12-25 | 2022-05-13 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Pressure release valve with adjusting device capable of suppressing squeaking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20130512 |