Dustproof ratchet wrench

A ratchet and wrench technology, applied in the field of ratchet wrenches, can solve the problems of user's hand injury, increased force applied by the user, and large gear resistance.

Inactive Publication Date: 2010-08-11
胡厚飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a dust-proof ratchet wrench, which solves the problem of the excessive resistance of the gears in the prior art during rotation, which causes the user to increase the force during construction, and it is easy to The problem of causing work-related injuries to the user's hands

Method used

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  • Dustproof ratchet wrench
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  • Dustproof ratchet wrench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] refer to figure 1 and figure 2 , the dust-proof ratchet wrench of the present invention includes a body 10, a driving body 20, a ratchet member 30, a control device 40 and a dust-proof ring 50; wherein:

[0037] Please also refer to image 3 and Figure 4, the main body 10 has a handle body 11, and the handle body 11 is in the shape of a long rod and can be held by a user. One end of the handle body 11 forms a head 12, the head 12 has a first side 121 and a second side 122 opposite to each other, the head 12 is provided with an accommodating hole 13 passing through the first side 121 and the second side 122, accommodating The placement hole 13 has a circular inner wall. The inner wall of the accommodation hole 13 is provided with a buckle groove 131 adjacent to the first side 121 of the head 12, and the inner wall of the accommodation hole 13 is provided with a flange 132 adjacent to the second side 122 of the head 12. The flange 132 has a Junction 133 .

[0038]...

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PUM

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Abstract

The invention relates to a dustproof ratchet wrench which comprises a main body, a driving body and a dustproof ring. The second side of the head of the main body is provided with a flange with a butting surface. The second end of the driving body is provided with a butting surface. The dustproof ring is arranged between the two butting surfaces. The natural height of the dustproof ring is larger than the vertical distance between the butting surface and the butting surface of the driving body. The dustproof ring comprises three longitudinal sealing units, each longitudinal sealing unit has one thickness along the longitudinal axis, and the thickness of the longitudinal sealing unit is smaller than the distance between the butting surface of the driving body and the butting surface of the head along the longitudinal axis, therefore each longitudinal sealing unit can not be simultaneously extruded by the two butting surfaces, the driving body can smoothly rotate relative to the head of the main body, and the dustproof effect can be achieved.

Description

technical field [0001] The invention relates to a ratchet wrench, in particular to a dust-proof ratchet wrench capable of preventing dust from entering the gap between the ratchet and the driving tooth from the second side of the head of the body. Background technique [0002] Please refer to the "Ratchet wrench" patent case of US Patent No. 7,311,019, which is a traditional socket wrench (commonly known as H handle wrench). The socket wrench has a handle and a head end. One side and the second side, the first side of the head end is open, and the wrench can pivot a gear with a plurality of ratchets around the outer circumference of the head end through the open first side, and the gear is limited by a cover plate. At the head end of the wrench, the lower end of the gear has a square head passing through the cover plate, this square head can be used to turn a socket or the like. [0003] There is a protruding ring on the second side of the head end facing the center ring. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/46B25B23/00
Inventor 胡厚飞
Owner 胡厚飞
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