Leakage-proof sealing structure of hydraulic element

Abstract

The invention discloses a leakproof sealing structure of a hydraulic element, which relates to the technical field of hydraulic elements, and has the advantage of reducing liquid flowing to the periphery of a valve body when the liquid leaks from a penetrating part of a hydraulic rod and the valve body, the leakproof sealing structure of the hydraulic element is characterized by comprising the hydraulic rod and the valve body, and the valve body is provided with a penetrating hole for the hydraulic rod to penetrate out; a sealing column is arranged on the side, where the hydraulic rod penetrates out, of the valve body, a moving-out hole for the hydraulic rod to penetrate out is formed in the sealing column, an elastic film arranged outside the hydraulic rod in a sleeving mode is arranged on the inner wall of the end, close to the valve body, of the moving-out hole, and the other end of the elastic film is connected with the outer wall of the hydraulic rod through an O-shaped sealing ring. A limiting piece for limiting the sealing ring to move out of the sealing column is arranged at the end, away from the valve body, of the sealing column, and the sealing column and the elastic film are both transparent.

Description

technical field [0001] The invention relates to the technical field of hydraulic components, in particular to an anti-leakage sealing structure for hydraulic components. Background technique [0002] Hydraulic valve is an automatic component operated by pressure oil. It is controlled by pressure oil of pressure distribution valve. It is usually used in combination with electromagnetic pressure distribution valve and can be used to remotely control the on-off of oil, gas and water pipeline systems in hydropower stations. Commonly used for clamping, control, lubrication and other oil circuits. There are direct-acting type and pilot type, and the pilot type is mostly used. A component used in hydraulic transmission to control the pressure, flow and direction of a fluid. The one that controls the pressure is called the pressure control valve, the one that controls the flow is called the flow control valve, and the one that controls the on, off and flow direction is called the ...

AI Technical Summary

Problems solved by technology

However, due to the friction between the hydraulic rod and the inner wall of the valve body for a long time during the use of the hydraulic valve, it may affect the sealing performance between the hydraulic rod and the valve body, resulting in leakage of the hydraulic valve. Leakage will affect the surrounding environment of the valve body, thereby affecting the use of the valve body

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