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Chain demounting device

A chain remover and screw technology, which is applied in the field of chain removers, can solve the problems of chain positioning, concave support without a handle, and difficult operation, and achieve reliable locking, novel structural design, and efficient chain removal.

Active Publication Date: 2009-10-07
HANGZHOU CHIZHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are as follows: firstly, in the structural design of the screw rod, it is intended to both fix the chain and remove the chain, but in actual operation, since the pin shaft constituting the chain is in the shape of a protruding riveting head, there is no way at all. Position the removed chain, so it is impossible to dismantle the chain conveniently; second, the concave support has no handle and cannot be operated by hand. Not only is the operation difficult, but it is also very difficult to disassemble the chain

Method used

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Embodiment 1

[0010] Embodiment 1: with reference to attached Figure 1~3 . The chain remover comprises a screw rod and a concave bracket, and the bottom end of the bracket 2 is provided with a handle 6. The screw is a hollow thread hole screw 1 and screwed in the thread hole of one end ear of the concave bracket 2, the screw part 5 of the thimble screw is screwed with the hollow thread hole in the screw 1, and the top surface of the hollow thread hole screw is Have a groove and cooperate with the pin shaft locking hole on the inner end surface of the other end ear of the concave bracket 2 . The inner end surface of the other end ear of the concave bracket 2 has a pin shaft locking hole and is opposite to the thimble in the thimble screw rod. The rod part 5 is an integral structure. The hole in the inner end face of the other end ear of the concave bracket 2 is a threaded hole and is screwed with the top core hole sleeve 3, and the screw rod 1, the screw rod 5, and the top core hole slee...

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Abstract

The invention relates to a chain demounting device for demounting the driving chain of motor or non-motor vehicle, which comprises a screw and a concave shaped carriage; the screw has a threaded center hole and is screwed in the threaded hole of an end ear of the concave shaped carriage; the rotating arm part 5 of a thimble screw is screwed in the threaded center hole of the screw 1; the other end ear of the concave shaped carriage is formed with a pin locking hole on the inner end face opposite to the thimble of the thimble screw. Advantages: 1, the invention not only realizes the reliable locking to the chain needing demounting, but also realizes easiness, rapid and high efficiency in chain demounting; 2, because the thimble screw is fitted with the screw with center threaded hole by screwing, the force applied on the thimble screw by the rotating arm is applied on the chain pin directly by the thimble, and forces the chain pin contacting the thimble to separate from the outer chain board; 3, the invention achieves the advantages of novel structure design, unique, simple, convenient for hand operation and long service life.

Description

technical field [0001] The invention relates to a chain remover used for removing motor vehicle and non-motorized transmission chains, which belongs to the field of chain remover manufacturing. Background technique [0002] Public announcement number CN2535195Y, name "chain remover", has a concave support, twisted at one end of the support with a screw with a protruding post on the screw head, and on the other side of the support corresponding to the screw rod is provided with a protruding post Compatible holes. Rotate the screw rod, the protruding column of the screw rod presses the chain joint pin of the chain, the chain joint pin can be extruded, and the chain is disassembled. Its disadvantages are as follows: firstly, in the structural design of the screw rod, it is intended to both fix the chain and remove the chain, but in actual operation, since the pin shaft constituting the chain is in the shape of a protruding riveting head, there is no way at all. The dismantled...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/14
Inventor 姚胜强
Owner HANGZHOU CHIZHENG TECH
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