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Abstract

The invention relates to ratchet wrench. It includes handle and sleeve. Its feature is that the handle is formed by upper and lower covers; and the lower one is set one flute to lay the sleeve. Compared with the existing technique, the advantages of the invention are that the upper and lower covers are designed by composite type; it only needs to open the upper cover while taking and putting the sleeve; it can save wrench working time; the processing the upper and lower cover is simple; the production cost is low.

Description

technical field [0001] The invention relates to a wrench, in particular to a ratchet wrench with a detachable sleeve and can be stored in a handle. Background technique [0002] Hand tools play a role in promoting productivity in various societies. Due to the invention and application of screws, bolts and nuts, wrenches have become a pivotal tool in the field of mechanical hand tools. Since the invention of the wrench, various types of wrenches have appeared, such as combination wrenches, open-end wrenches, ring wrenches, socket ratchet wrenches and so on. [0003] In the field of socket wrench technology, due to the different sizes of nuts or screws used in different occasions, the sleeves used to drive these nuts or screws also require different inner diameters to cooperate with them, so there is a kind of The toolbox contains a socket ratchet wrench and a series of sockets with different inner diameters. These sockets can be detachably combined with the socket wrench to ...

AI Technical Summary

Problems solved by technology

It can be imagined that the design tool takes up too much volume, it is inconvenient to carry and transport, and the production cost is also high

[0004] The published U.S. patent application, whose application number is 73966, discloses a socket ratchet wrench. The handle is hollow in the wrench structure, and sleeves with different inner diameters are sequentially arranged in the handle along the axis of the handle, and exposed , although this design is more convenient to take and place the sleeve, the wrench is extremely inconvenient to operate; and US4627315 discloses a ratchet socket wrench. The pull type is placed in the hollow handle, the width of the handle part is relatively large, the overall structure is relatively clumsy, and the operation is not very convenient, and both US6401577B1 and US6349623B1 disclose a socket ratchet wrench. Compared with the former patent, the difference is The sleeve is placed parallel to the axis of the handle and placed in the hollow handle in a pull-type manner. Like the patent US4627315, the sleeve is taken out by pulling the trap for placing the sleeve. The trap is useful Due to the structure of separating the space for the sleeves, the overall volume of the wrench has been greatly reduced, but the entire row of sleeves has to be moved every time the sleeve is taken out. The operation is still not fast enough, and the handle part is hollow and the drawer ( trap) is difficult for workers to produce, and the production cost is high

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