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Ratchet clamp

A technology of ratchet and ratchet mechanism, which is applied in the field of ratchet clips, and can solve the problems of unsmooth and laborious pressing of brake parts

Active Publication Date: 2016-10-05
HANGZHOU GREAT STAR TOOLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the existing ratchet clip allows the user to press the brake part when releasing the ratchet clip awkward and laborious

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0048] figure 1 A preferred embodiment of the invention is shown.

[0049] like figure 2 As shown, the first clamp arm 5 and the second clamp arm 52 of the ratchet clamp of the present invention are connected by the first shaft 6 and can rotate around the first shaft 6 to control the size of the jaws, that is, open and close. Specifically, when the user applies a force to the first clamp arm 5 and the second clamp arm 52 to make them approach each other (that is, the first clamp arm 5 and the second clamp arm 52 move toward each other), the jaws become smaller and pass The ratchet mechanism 0 fixes it in a desired position so that the clamping arm produces the required clamping force, thereby clamping an object such as a workpiece; When force keeps them away from each other (that is, the first clamp arm 5 and the second clamp arm 52 move away from each other), the ratchet mechanism 0 must be unlocked first, and it will automatically open under the elastic force of the sprin...

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PUM

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Abstract

The invention discloses a ratchet clamp and relates to the field of manual tools. The ratchet clamp comprises a first clamp arm, a second clamp arm and a ratchet mechanism disposed between the first clamp arm and the second clamp arm. An elastic part is disposed between the ratchet mechanism and the second clamp arm. The ratchet mechanism comprises a rack and a rocking part, and the rocking part comprises rocking teeth, a rocking tooth holder and a lever. In clamping, the rocking part wholly rocks in a range under the action of the elastic part, the rack and the rocking teeth engage mutually and reversely to hold clamping force, and the elastic part maintains engagement of the rock and rocking teeth from slipping; in opening, interference fit between the rack and the rocking teeth enables a user to pull the lever with little effort so as to disengage the rocking teeth and prevent the ratchet mechanism from being opened by accidental relief. The ratchet clamp is very secure and reliable in a self-locking state, and a jaw of the clamp is up to about 50 kg in maximum clamping force, with higher than 85% of maximum clamping force maintained after a user relieves the clamp arms.

Description

technical field [0001] The invention relates to the field of hand tools, in particular to a ratchet clip. Background technique [0002] Hand tools refer to small tools that are held by hand and act on objects with manpower or other power controlled by people. They are used for manual cutting and auxiliary decoration, and generally have handles for easy portability. Pliers are a class of commonly used hand tools for clamping, fixing workpieces or twisting, bending, and cutting wires. Among them, the pliers used to clamp and fix the workpiece are also called clamps or clamps. [0003] The shape of the clamp or clamp is generally V-shaped, and usually consists of two clamp bodies with mutually symmetrical structures, which are partially overlapped and fixed by riveting. The clamp can be opened and closed flexibly with its riveted connection point as the fulcrum, and its design includes the principle of leverage, so that a small external force (such as the hand force applied t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B7/14
Inventor 李跃明
Owner HANGZHOU GREAT STAR TOOLS
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