CN203322343U - Direct-acting overflow valve - Google Patents
Direct-acting overflow valve Download PDFInfo
- Publication number
- CN203322343U CN203322343U CN2013203587210U CN201320358721U CN203322343U CN 203322343 U CN203322343 U CN 203322343U CN 2013203587210 U CN2013203587210 U CN 2013203587210U CN 201320358721 U CN201320358721 U CN 201320358721U CN 203322343 U CN203322343 U CN 203322343U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- spool
- direct
- acting overflow
- 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 a direct-acting overflow valve, which comprises a valve body, a valve seat, a valve core, and a pressure adjusting screw, wherein an axial oil inlet and a radial oil return opening are formed in the valve seat; a return spring is arranged between the valve core and the pressure adjusting valve in the valve body; a radial load unloading hole is formed in the valve body. The direct-acting overflow valve is characterized in that the valve core is arranged in the valve seat in a sliding manner; the front section of the valve core in the valve seat is cylindrical; the valve core sealing surface arranged at the back of the valve core and matched with the valve seat is a conical surface. The direct-acting overflow valve can increase the concentricity of the valve core and the valve seat oil inlet when the valve core is moving, so as to guarantee the long-term normal operation of the equipment, and to facilitate mounting.
Description
Technical field
The utility model relates to a kind of relief valve.
Background technique
Existing direct-acting overflow valve, comprise valve body, valve seat, spool, pressure regulating screw, valve seat is provided with axial filler opening and return opening radially, be provided with Returnning spring between spool in valve body and pressure regulating screw, be provided with unloading hole radially in valve body, for improving sealing, spool adopts needle-valve, the shortcoming of this relief valve is: 1) valve core of needle valve can't be led when opening or closing, be difficult to the coaxality of assurance and valve seat filler opening, the phenomenon of leakage often occurs being not closed completely, producing, even cause when serious losing efficacy; 2) be not easy to install.
The model utility content
The purpose of this utility model is for the prior art above shortcomings, and a kind of direct-acting overflow valve is provided, and when it can improve spool and moves and the coaxality of valve seat filler opening, guarantees that equipment works for a long time, and is convenient to install.
For achieving the above object, direct-acting overflow valve of the present utility model, comprise valve body, valve seat, spool, pressure regulating screw, valve seat is provided with axial filler opening and return opening radially, be provided with Returnning spring between spool in valve body and pressure regulating screw, be provided with unloading hole radially in valve body, it is characterized in that being located in valve seat of spool slip, spool leading portion in valve seat is cylindric, and the valve core sealed cover that the spool rear portion coordinates with valve seat is the conical surface.
Spool of the present utility model is when mobile, and columned spool leading portion can play the effect of piston, and spool is led, and when improving spool and moving and the coaxality of valve seat filler opening, avoids being not closed completely, the generation of leakage phenomenon, guarantees that equipment works for a long time;
As further improvement of the utility model, be provided with the installation screw thread on the valve body cylindrical; Can realize the plug-in type installation of relief valve;
In sum, when the utility model can improve spool and moves and the coaxality of valve seat filler opening, guarantee that equipment works for a long time, and be convenient to install.
The accompanying drawing explanation
The plan view that Fig. 1 is the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, this direct-acting overflow valve, comprise valve body 1, valve seat 2, spool 3, pressure regulating screw 4, valve seat 2 is provided with axial filler opening 2a and return opening 2b radially, be provided with Returnning spring 5 between spool 3 in valve body 1 and pressure regulating screw 4, be provided with unloading hole 6 radially in valve body 1, what spool 3 slided is located in valve seat 2, spool leading portion 3a in valve seat 2 is cylindric, and the valve core sealed cover 3b that spool 3 rear portions coordinate with valve seat 2 is the conical surface; Be provided with on valve body 1 cylindrical screw thread 1a is installed.
Spool of the present utility model is when mobile, columned spool leading portion 3a can play the effect of piston, and spool 3 is led, when improving spool and moving and the coaxality of valve seat filler opening 2a, avoid being not closed completely, the generation of leakage phenomenon, guarantee that equipment works for a long time; Installation screw thread 1a can realize the plug-in type installation of relief valve.
Claims (2)
1. a direct-acting overflow valve, comprise valve body, valve seat, spool, pressure regulating screw, valve seat is provided with axial filler opening and return opening radially, be provided with Returnning spring between spool in valve body and pressure regulating screw, be provided with unloading hole radially in valve body, it is characterized in that being located in valve seat of spool slip, the spool leading portion in valve seat is cylindric, and the valve core sealed cover that the spool rear portion coordinates with valve seat is the conical surface.
2. direct-acting overflow valve as claimed in claim 1, is characterized in that being provided with the installation screw thread on the valve body cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203587210U CN203322343U (en) | 2013-06-21 | 2013-06-21 | Direct-acting overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203587210U CN203322343U (en) | 2013-06-21 | 2013-06-21 | Direct-acting overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322343U true CN203322343U (en) | 2013-12-04 |
Family
ID=49661695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203587210U Expired - Fee Related CN203322343U (en) | 2013-06-21 | 2013-06-21 | Direct-acting overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322343U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455100A (en) * | 2014-12-01 | 2015-03-25 | 江苏理工学院 | Automobile brake fluid discharging device |
| CN105715621A (en) * | 2016-04-28 | 2016-06-29 | 黄斌 | Direct relief valve with guide structure |
| CN106090362A (en) * | 2016-08-11 | 2016-11-09 | 中国海洋大学 | A kind of direct-acting overflow valve |
| CN107061813A (en) * | 2017-06-19 | 2017-08-18 | 太仓市宇航造纸机械厂 | A kind of valve |
| CN107166050A (en) * | 2017-06-19 | 2017-09-15 | 太仓市宇航造纸机械厂 | A kind of valve arrangement |
| CN107314136A (en) * | 2017-06-19 | 2017-11-03 | 太仓市宇航造纸机械厂 | A kind of safety valve |
-
2013
- 2013-06-21 CN CN2013203587210U patent/CN203322343U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455100A (en) * | 2014-12-01 | 2015-03-25 | 江苏理工学院 | Automobile brake fluid discharging device |
| CN104455100B (en) * | 2014-12-01 | 2016-10-26 | 江苏理工学院 | Automobile brake fluid discharging device |
| CN105715621A (en) * | 2016-04-28 | 2016-06-29 | 黄斌 | Direct relief valve with guide structure |
| CN106090362A (en) * | 2016-08-11 | 2016-11-09 | 中国海洋大学 | A kind of direct-acting overflow valve |
| CN106090362B (en) * | 2016-08-11 | 2018-03-23 | 中国海洋大学 | A kind of direct-acting overflow valve |
| CN107061813A (en) * | 2017-06-19 | 2017-08-18 | 太仓市宇航造纸机械厂 | A kind of valve |
| CN107166050A (en) * | 2017-06-19 | 2017-09-15 | 太仓市宇航造纸机械厂 | A kind of valve arrangement |
| CN107314136A (en) * | 2017-06-19 | 2017-11-03 | 太仓市宇航造纸机械厂 | A kind of safety valve |
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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: 20131204 Termination date: 20210621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |