CN203322343U - Direct-acting overflow valve - Google Patents

Direct-acting overflow valve Download PDF

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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
Authority
CN
China
Prior art keywords
valve
spool
valve seat
direct
acting overflow
Prior art date
Application number
CN2013203587210U
Other languages
Chinese (zh)
Inventor
林英俊
Original Assignee
泸州国邦机械有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 泸州国邦机械有限公司 filed Critical 泸州国邦机械有限公司
Priority to CN2013203587210U priority Critical patent/CN203322343U/en
Application granted granted Critical
Publication of CN203322343U publication Critical patent/CN203322343U/en

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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

Direct-acting overflow valve
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.
CN2013203587210U 2013-06-21 2013-06-21 Direct-acting overflow valve CN203322343U (en)

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 CN203322343U (en) 2013-06-21 2013-06-21 Direct-acting overflow valve

Country Status (1)

Country Link
CN (1) CN203322343U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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 Motor vehicle brake fluid releasing 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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