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Joint assembly

An assembly and joint body technology, applied in the direction of pipes/pipe joints/fittings, adjustable connections, hose connection devices, etc., can solve problems such as easy oil leakage, loose connection devices, and difficult installation

Inactive Publication Date: 2012-10-24
SHANDONG HANDE HYDRAULIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the oil return pipe joint assembly of the piston cylinder currently on the market, the connection form is complicated and difficult to install. The oil return pipe will be twisted during use, making the connection device loose and prone to oil leakage

Method used

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  • Joint assembly

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Embodiment Construction

[0009] like figure 1 As shown, the present invention is provided with a cylinder joint body 2 in the oil return pipe joint body 1, and the cylinder joint body 2 and the oil return pipe joint body 1 are connected together by a circlip 3 for the shaft, and the oil return pipe joint body 1 and the cylinder body The pipelines of the joint body 2 are connected, and the upper and lower contact surfaces of the oil return pipe joint body 1 and the cylinder joint body 2 are respectively provided with annular sealing grooves 4 , and O-rings 5 ​​are arranged in the annular sealing grooves 4 . Through the above settings, the cylinder joint body 2 of the present invention is connected to the cylinder head of the piston cylinder, the oil return pipe joint body 1 is connected to the oil return hose, and the hydraulic oil flows through the inner hole of the cylinder joint body 2 through the oil return pipe joint body 1. The oil return hose, when the cargo box is lifted, the oil return pipe jo...

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Abstract

The invention discloses a joint assembly. The joint assembly is characterized in that a cylinder joint body is arranged in an oil return pipe joint body; ring seal grooves are respectively arranged on the upper and lower contact surfaces of the interior of the oil return pipe joint body and the cylinder joint body; and O rings are arranged in the ring seal grooves. Used for connecting piston cylinders and oil return rubber pipes, the joint assembly avoids oil leakage due to oil return pipe joint looseness caused by torsion.

Description

technical field [0001] The invention relates to a connection device between a piston cylinder and an oil return hose, in particular to a joint assembly connecting the piston cylinder and the oil return hose. Background technique [0002] For the oil return pipe joint assembly of the piston cylinder currently on the market, the connection form is complicated, and the installation is difficult. The oil return pipe will be twisted during use, making the connection device loose and prone to oil leakage. Contents of the invention [0003] The object of the present invention is to provide an oil return pipe joint assembly that can be directly installed on the piston cylinder. [0004] In order to achieve the above object, the present invention is provided with a cylinder joint body in the oil return pipe joint body. Connecting with each other, annular sealing grooves are respectively provided on the upper and lower contact surfaces of the oil return pipe joint body and the cyli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L27/087F16L33/00
Inventor 韩相森王瑞林沈洪强
Owner SHANDONG HANDE HYDRAULIC MACHINERY
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