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Locking device for piston rod

A technology for locking devices and piston rods, which is applied in the direction of piston rods, lifting devices, engine components, etc., and can solve problems such as loose threaded connections and loose connections

Inactive Publication Date: 2018-01-19
陆灿忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic forklift manufacturers, aiming at the phenomenon that the threaded connection will become loose after vibration, can only eliminate it through maintenance and other methods after it has been used for a period of time, but it cannot fundamentally solve the loose connection.

Method used

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  • Locking device for piston rod

Examples

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Embodiment Construction

[0010] The present invention will now be further described in conjunction with specific examples, and the following examples are intended to illustrate the present invention rather than further limit the present invention.

[0011] Such as figure 1 The illustrated locking device for a piston rod includes two adjacent back caps 1 mounted on the piston rod and a locking plate 2 arranged between the two back caps 1 to lock the back caps 1 .

[0012] Because the locking piece 2 is locked back and forth between the two back caps 1, the piston rod and the locking piece 2 can not move relative to the back cap 1, and the purpose of locking is achieved.

[0013] Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of ​​the present invention. The technical scope of the present invention is ...

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PUM

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Abstract

The invention relates to a locking device for a piston rod. The locking device comprises two adjacent back caps mounted on the piston rod and a locking piece arranged between the two back caps and used for locking the back caps. The locking device has the beneficial effects that the piston rod and the locking piece cannot move relative to the back caps because the locking piece is locked back andforth between the two back caps, and the purpose of locking is achieved.

Description

technical field [0001] The invention relates to a locking device for a piston rod. Background technique [0002] The piston rod of the tilting oil cylinder is connected with the lifting shelf by earrings, the back cap is threaded with the piston rod, and the other end is connected with the frame by the cylinder barrel. When the forklift is forklifting goods, due to the vibration of the forklift and the shelf, the back cap on the piston rod is loosened under the action of the telescopic movement of the tilting cylinder, causing the rotation of the piston rod, and the back cap that acts as a lock rotates and loosens the piston rod The effective working part becomes longer, and the tilting cylinders on both sides of the forklift are not synchronized when working, and the force is uneven, resulting in the breakage of the piston rod head with a large bearing capacity and the wear of the piston oil seal. [0003] The piston rod of the tilt cylinder of the forklift is a threaded c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F9/075F16J7/00
Inventor 陆灿忠
Owner 陆灿忠