Hand-operated direction valve

A manual reversing valve and valve core technology, applied in the direction of fluid pressure actuating device, servo motor assembly, mechanical equipment, etc., can solve the problem of wear and tear of parts, the influence of environmental temperature, the normal operation of hydraulic system, and the ease of rubber seals. Wear and other problems, to achieve the effect of light structure, stable and reliable reversing rotation, and large outlet pressure

Inactive Publication Date: 2016-03-30
SHENYANG FEIYAN AVIATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such products are usually large in size, low in pressure, and the pressure does not exceed 20MPa.
Prone to pressure leaks and leaks
Due to the high rotation frequ

Method used

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] Such as Figure 1-8 Shown, be a kind of manual reversing valve of the present invention, comprise:

[0027] The upper cover body 2, the lower cover body 3, the spool 9 and the control handle 1, the upper cover body 2 is equipped with three pipe joints, which are respectively the descending joint 4, the ascending joint 6 and the neutral pipe joint 5; The cover body 3 is equipped with an oil inlet joint head 17; the upper cover body 2 and the lower cover body...

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PUM

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Abstract

The invention discloses a hand-operated direction valve. The hand-operated direction valve comprises an upper cover, a lower cover, a valve element and a control handle, and is characterized in that three pipe connectors are installed on the upper cover and include the left reversing pipe connector, the right reversing pipe connector and the middle vertical pipe connector; an oil inlet pipe connector is installed on the lower cover; the valve element in sliding fit with the surface of the upper cover and the surface of the lower cover is arranged between the upper cover and the lower cover and is a circular plate, and a round groove is formed in the outer edge of the valve element; a shaft hole is formed in the center of the valve element and connected with the control handle through a core shaft, two through holes are further machined in the valve element, sleeves capable of rotating along with the valve element to enable the upper cover pipe connectors and the lower cover pipe connector to be communicated are arranged in the through holes respectively, and sealing rings and compressed springs are arranged on the outer sides of the portions, in the upper cover and the lower cover, of the sleeves; and steel balls are arranged in the round groove in the outer edge of the valve element. The hand-operated direction valve has the advantages of being small in structure weight, high in strength, large in outlet pressure, stable in oil pressure, not prone to abrasion, stable and reliable in reversing rotation, long in product service life, wide in application range and the like.

Description

technical field [0001] The invention belongs to an accessory device of a hydraulic reversing valve, in particular to a three-position, four-way manual reversing valve whose maximum pressure can reach 50 MPa. Background technique [0002] As we all know, manual reversing valve is a general accessory of hydraulic products, and various types of manual reversing valves can be purchased at any time according to design requirements in the domestic and foreign markets. However, such products are usually large in size, low in pressure, and the pressure does not exceed 20MPa. It is prone to pressure leakage and leaks. Due to the high rotation frequency of the reversing valve, its rubber seal is easy to wear, which will cause pressure leakage of the valve body and affect the normal operation of the hydraulic system. Contents of the invention [0003] In order to solve the above technical problems, the present invention proposes a manual reversing valve, which is sealed with a sphe...

Claims

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Application Information

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IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 于忠张延明李凤琴
Owner SHENYANG FEIYAN AVIATION EQUIP
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