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Screwdriver ratchet device with built-in ratchet and application thereof

A ratchet device and screwdriver technology, which is applied to screwdrivers, wrenches, wrenches, etc., can solve the problems of complex ratchet mechanism structure and high production cost, and achieve the effects of long service life, simplified structure and reduced cost

Active Publication Date: 2010-07-07
ZHEJIANG SANDING TOOLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical defects of the above-mentioned ratchet mechanism with complex structure and high production cost, an object of the present invention is to provide a ratchet device for screwdrivers, which has the characteristics of simple structure and long service life

Method used

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  • Screwdriver ratchet device with built-in ratchet and application thereof
  • Screwdriver ratchet device with built-in ratchet and application thereof
  • Screwdriver ratchet device with built-in ratchet and application thereof

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Embodiment Construction

[0025] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] Such as figure 1 , figure 2 , image 3 The shown screwdriver ratchet device with a built-in ratchet includes a ratchet seat 3 , a ratchet shaft 1 , an outer collar 2 and two ratchets 4 . Such as Figure 4 , Figure 5 As shown, the pawl seat 3 is composed of an annular body 31 and a connecting portion 32 for connecting the handle body of the screwdriver. The annular body 31 is provided with a central shaft hole 33, and pawl installation ports are respectively provided on both sides of the central shaft hole 33. 34. The two pawls 4 are respectively arranged in the pawl installation opening 34. Such as image 3 As shown, the ratchet shaft 1 is installed in the central shaft hole 33, the upper part of the ratchet shaft 1 is provided with a screwdriver bit mounting hole 14, and a magnetic steel 10 is arranged in the moun...

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Abstract

The invention relates to a structure of a ratchet screwdriver, in particular to a screwdriver ratchet device, a ratchet screwdriver handle and a ratchet screwdriver. The screwdriver ratchet device with the built-in ratchet comprises a ratchet pawl seat, a ratchet shaft, an outer clamping ring and two ratchet pawls; wherein the two sides of a central shaft hole of an annular body of the ratchet pawl seat are respectively provided with a ratchet pawl mounting port, the ratchet pawls are respectively arranged in the ratchet pawl mounting ports; the ratchet shaft, the outer clamping ring and the ratchet pawl seat into a whole are connected by the ratchet shaft; the ratchet pawls are of arch type and are provided with dummy clubs and ratchets, the ratchet shaft is provided with strip teeth, compression springs which can maintain the ratchets and the strip teeth engaged are respectively arranged in the ratchet mounting ports; the inner ring of the annular side wall of the outer clamping ring is provided with two notches, an inclined plane is arranged on the notches, and when the outer clamping ring is rotated towards one side, the inclined plane can force the dummy club on one ratchet pawl so that the ratchets on the ratchet pawl and the strip teeth can be disengaged. The invention simplifies the structure of the ratchet device, reduces the production cost, and has the advantage of long service life.

Description

technical field [0001] The invention relates to a structure of a ratchet screwdriver, in particular to a screwdriver ratchet device, a ratchet screwdriver handle and a ratchet screwdriver using the ratchet device. Background technique [0002] Existing screwdrivers are all fixed with a metal main rod at the front end of the handle, and the free end of the main rod is provided with a cross or a straight-shaped wrenching part. The wrenching part rotates so as to loosen and tighten bolts. When using this kind of screwdriver, the user needs to keep loosening and tightening the palm so that the palm is in a position where it is easy to apply force to smooth the teeth, and the grip and the wrenching part are integrated, so the user must constantly loosen and tighten the screwdriver. It is very inconvenient to operate with the palm of your hand. [0003] In order to solve the above-mentioned technical problems, there has been a ratchet screwdriver, such as the ratchet mechanism o...

Claims

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Application Information

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IPC IPC(8): B25B15/04B25B23/16
Inventor 徐志明
Owner ZHEJIANG SANDING TOOLS
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