Overflow valve

A technology of relief valve and bonnet, which is applied in fluid pressure actuation devices, fluid pressure actuation system safety, servo motor components, etc. It can solve problems such as pressure instability, pressure regulation failure, vibration, etc., and achieve convenient pressure regulation , Sensitive action, small effect area

Inactive Publication Date: 2016-03-30
SUZHOU YUANSHUO PRECISION MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the use of direct-acting relief valves, failures in pressure regulation, unstable pressure, vibration, noise and other failures often occur.

Method used

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  • Overflow valve

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, a relief valve includes: a bonnet 1, a valve body 2, a main valve core 3, a main valve seat 4, a pilot poppet valve 5, and a pilot valve seat 6, and the top of the valve body 2 is provided with a bonnet 1 , the valve body 2 is provided with a main valve seat 4, and the main valve seat 4 is provided with a main valve core 3; the valve cover 1 is provided with a pilot valve seat 6, and the pilot valve seat 6 is provided with a Pilot poppet valve 5; the top of the main valve core 3 is in contact with the pilot poppet valve 5 through the main valve spring 7 . It also includes: a pressure regulating spring 8, an adjusting screw 9, and an adjusting handwheel 10. The end of the pilot cone valve 5 is provided with an adjusting spring 8, the end of the adjusting spring 8 is provided with an adjusting screw 9, and the end of the adjusting screw...

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PUM

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Abstract

The invention discloses an overflow valve. The overflow valve comprises a valve cover, a valve body, a main valve core, a main valve seat, a pilot cone valve and a pilot valve seat, wherein the valve cover is arranged at the top of the valve body, the main valve seat is arranged inside the valve body, and the main valve core is arranged on the main valve seat; the pilot valve seat is arranged inside the valve cover, and the pilot cone valve is arranged on the pilot valve seat; the top end of the main valve core is in contact with the pilot cone valve through a main valve spring. The overflow valve further comprises a pressure adjusting spring, an adjusting screw and an adjusting hand wheel; the adjusting spring is arranged at the tail end of the pilot cone valve, the adjusting screw is arranged at the tail end of the adjusting spring, and the tail end of the adjusting screw is connected with the adjusting hand wheel. The overflow valve further comprises a damping hole, and the damping hole is formed in the main valve core. The overflow valve provided by the invention has a small cone valve acting area, and can achieve pressure adjusting conveniently; the main valve spring is flexible, the pressure fluctuation is small, and the static characteristic is excellent; the main valve core adopts a conical surface valve seat type structure for sealing, overlapping is avoided, and actions are sensitive.

Description

technical field [0001] The invention relates to an overflow valve, which belongs to the technical field of valves. Background technique [0002] At present, the overflow valve is an important equipment in the hydraulic system. Its main function is to limit the maximum pressure of the system through the pre-set overflow pressure, so that the system pressure does not exceed the set value of the overflow valve, so as to protect the system from overload. In the use of direct-acting relief valves, failures in pressure regulation, unstable pressure, vibration and noise are often encountered. Contents of the invention [0003] Purpose: In order to overcome the deficiencies in the prior art, the present invention provides an overflow valve. [0004] Technical solution: In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: [0005] A relief valve, comprising: a valve cover, a valve body, a main valve core, a main va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F15B20/00
CPCF15B13/029F15B20/007
Inventor 何婷朱磊
Owner SUZHOU YUANSHUO PRECISION MOLD
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