Square coaxial sealing element

A seal, coaxial technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as piston leakage and sealing ring extrusion, and achieve the effect of small installation space, guaranteed effectiveness, and easy installation.

Inactive Publication Date: 2013-04-24
TAICANG MINGYUSL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a square coaxial seal to overcome the problems in the prior art that internal leakage occurs at the piston and the sealing ring is easily squeezed out from the gap between the piston and the cylinder body when the hydraulic oil cylinder is just started or instantaneously started

Method used

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Embodiment Construction

[0016] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that all the drawings of the present invention are in simplified form and use inaccurate scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0017] Please refer to figure 1 and figure 2 , the present invention provides a square coaxial seal, comprising: a square ring 1 and an O-ring 2, the O-ring 2 is arranged inside the square ring 1, and the two sides of the outer circle of the square ring 1 are respectively Chamfering 11 is provided. The present invention adds chamfers 11 on both sides of the outer circle of the square ring 1, which can play a certain guiding role when the square coaxial seal is installed, and prevent the cylinder body...

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Abstract

The invention discloses a square coaxial sealing element. The square coaxial sealing element comprises a square ring and an O-shaped ring, the O-shaped ring is arranged on the inner side of the square ring, and chamfers are mounted on two sides of an outer circle of the square ring respectively. According to the square coaxial sealing element, the chamfers are added on the two sides of the outer circle of the square ring respectively, a certain guiding function can be achieved when the square coaxial sealing element is installed, the square coaxial sealing element is prevented from being sheared and damaged by a cylinder body during installation, and during usage, a sealing ring is not prone to be squeezed out from a gap between the cylinder body and a piston. Besides, oil guide grooves are added on two axial end faces of the square ring, inertia and lag of the square coaxial sealing element due to rapidly starting of a hydraulic oil cylinder can be well prevented, hydraulic oil can rapidly and effectively enter into a piston groove to force the O-shaped ring to rapidly deform, and thereby the sealing performance is guaranteed. The square coaxial sealing element is simple in structure, small in required installing space and convenient to install.

Description

technical field [0001] The invention relates to a square coaxial seal used for bidirectional sealing of a hydraulic cylinder piston, also known as a square ring for a GSF hole. Background technique [0002] With the continuous development of the domestic economy, the degree of industrial automation of many domestic industrial and mining enterprises has been further improved, and sealing products play an important role in industrial automation. The quality of sealing products plays a key role in the fluid power transmission of industrial automation. Especially in major national equipment related to international people's livelihood, the stable performance, reliable quality and tolerance of various fluid media of sealing products are very important. At the same time, the use of seals imported from foreign developed countries in major domestic key equipment is not only expensive, but also takes a long time to arrive. During the maintenance and transformation of equipment, it wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16F16J15/18
Inventor 尤建清
Owner TAICANG MINGYUSL
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