Rechet spanner

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 every society. 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 a tool has appeared. Inside the box, a socket ratchet wrench is placed, and a series of sockets with different inner diameters are also placed. These sockets can be detachably combined with t...

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] U.S. Patent No. 4,253,356 discloses a socket ratchet wrench. The handle is hollow in the structure of the wrench, 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, But the wrench is extremely inconvenient to operate; and US4627315 discloses a ratchet socket wrench. The handle is hollow in the structure of the wrench, and the end has an opening. Larger, the overall structure is relatively clumsy, and the operation is not very convenient. US6401577B1 and US6349623B1 both disclose a socket ratchet wrench. Compared with the former patent, the difference is that the socket is placed on the In the hollow handle, like the patent US4627315, the sleeve is taken and placed by pulling the trap for placing the sleeve. There is a structure on the trap for separating the space for the sleeve, and the whole wrench The volume has been greatly reduced, but the entire row of sleeves needs to be moved every time the sleeves are picked and placed. The operation is still not fast enough, and the hollow design of the handle part and the trap are difficult for workers to produce, and the production cost higher

Images