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Adjustable arc wrench with escapement jaw

An escapement jaw, arc-shaped technology, applied in the field of wrenches

Active Publication Date: 2011-05-25
陈公正
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011]Because the structure of the existing one-way ratchet wrench has disadvantages such as difficult processing, easy slippage during operation, and poor applicability for small sizes

Method used

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  • Adjustable arc wrench with escapement jaw
  • Adjustable arc wrench with escapement jaw
  • Adjustable arc wrench with escapement jaw

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] The present invention is a movable arc escapement jaw wrench, please refer to Figure 1 to Figure 4 A preferred embodiment is to include:

[0049] A wrench body 10. The wrench body 10 is provided with a handle 11. The handle 11 has front and rear ends and upper and lower sides. A wrench head 12 is formed at the front end of the handle 11. The wrench head 12 is a disc-shaped plate. The middle of the front end of the wrench head 12 is recessed backward to form a clamping groove 13, and the upper and lower sides of the corresponding clamping groove 13 form an upper clamping arm 14 and a lower clamping arm 15 on the wrench head 12, and the position around the clamping groove 13 It is divided into the reverse end close to the upper clamp arm 14 and the forward end close to the lower clamp arm 15;

[0050] The front end of the inner surface of the lower clamp arm 15 protrudes inward to form an anti-slip convex portion 151, and the rear side adjacent to the anti-slip convex p...

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PUM

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Abstract

The invention provides an adjustable arc wrench with an escapement jaw, which is characterized in that an arc groove is concavely arranged at the inner side of a wrench head, an escapement jaw is slidably embedded in the arc groove in the wrapping manner, and a jaw clamping part which protrudes the arc groove is arranged at the end of the escapement jaw in the counter-clockwise direction. In the invention, an inner face of the jaw clamping part is matched with an opposite face of the wrench head for clamping and rotating a bolt, the wrench can rotate by means of the internal shrinkage of the escapement jaw in reverse rotation, and the bolt can be continuously locked by repeating the normal and reverse rotation. Owing to the concave pit shape of the arc groove and the sliding arrangement of the escapement jaw, the adjustable arc wrench has better size adaptability in clamping the bolt as well as low production cost.

Description

Technical field [0001] The present invention involves a wrench, especially when a kind of active arc -shaped capture jaw wrench that can be escaped when reversing. Background technique [0002] There is a structure of one -way spiny tooth wrench, such as Figure 7 The patent case No. 7,111,529 shown in the United States is a clamping slot 41 in the middle of the 40 front end of the wrench head. Several arc -shaped concave is formed on the interval of the surroundings 41.The space of the space corresponds to the upper and lower sides of the clamping slot 41 to the upper and lower sides of the wound head 40 to form an upper arm 42 and the arm 43, and the inner wall of the lower arm 43 is set on one and two openings.431 is set up a conical spring 44, and then sets out a downtown slot 41 at the inlet 431, and the spine tooth block 45 is against the outer end of the cone spring 44.The method combines 46 on both sides, so as to close the opening on both sides of the 431 of the inlet. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/46B25B13/08B25B23/00
Inventor 李丽珠
Owner 陈公正
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