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Overflow valve

A relief valve and valve body technology, which is applied in fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve problems such as insufficient response, small pressure adjustment range, and large vibration, and achieve sensitive action and pressure adjustment. The effect of large range and small pressure oscillation

Inactive Publication Date: 2014-12-10
HONGAN ANDA NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of structure, the existing relief valve often has a small range of pressure adjustment, large vibration when overflowing, and insufficient sensitivity of response.

Method used

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  • Overflow valve

Examples

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0011] This embodiment provides a relief valve, such as figure 1 As shown, it includes a valve body 1 with an oil inlet 2 and an oil overflow port 3, a valve core is arranged in the cavity of the valve body 1, and the head of the valve core is a conical seal for sealing the oil overflow port 3 5. The middle part of the spool has a piston-shaped force-bearing member 6 that is compatible with the inner wall of the cavity of the valve body 1. The tail of the spool extends into the guide groove 7 on the inner wall of the cavity of the valve body 1, and the tail of the spool is in line with the guide groove. Return spring 8 is provided between 7.

[0012] Further, the above-mentioned valve body 1 is provided with a pressure relief chamber 9 with a pressure control assembly, the pressure relief chamber 9 communicates with the guide groove 7, and the valve co...

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PUM

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Abstract

The invention belongs to the field of hydraulic devices, and particularly relates to an overflow valve which comprises a valve body. The valve body comprises oil inlet and an oil overflow port, a valve element is arranged in a valve body cavity, a conical sealing piece used for sealing the oil overflow port is arranged on the head portion of the valve element, a piston-shaped stress piece matched with the inner wall of the valve body cavity is arranged on the middle portion of the valve element, the tail portion of the valve element extends into a guide groove in the inner wall of the valve body cavity, and a reset spring is arranged between the tail portion of the valve element and the guide groove. The overflow valve is large in pressure regulating range, small in pressure regulating deviation, low in pressure runout, sensitive in action, and large in overload capacity.

Description

technical field [0001] The invention belongs to the field of hydraulic equipment, in particular to an overflow valve. Background technique [0002] The relief valve is a hydraulic pressure control valve, which mainly plays the role of constant pressure relief, pressure stabilization, system unloading and safety protection in hydraulic equipment. Due to structural limitations, the existing overflow valves often have a small range of pressure regulation, large vibrations during overflow, and insufficient sensitivity in response. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide a relief valve with large pressure regulation range, small pressure regulation deviation, small pressure swing, sensitive action and large overload capacity. [0004] In order to achieve the above technical purpose, the solution provided by the present invention is: a relief valve, including a valve body with an oil inlet and an...

Claims

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Application Information

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IPC IPC(8): F15B13/02
Inventor 廖红平廖秋平
Owner HONGAN ANDA NEW MATERIALS
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