Flexible bolt with hexagonal-groove threaded end socket

Abstract

The invention discloses a flexible bolt with a hexagonal-groove threaded end socket. The flexible bolt comprises a bolt head, a bolt rod connected with the bolt head and a nut which is in matched connection with the bolt rod, wherein the bolt rod is a steel bar made of a bendable spring steel material, and is provided with a threaded end; a threaded end socket is arranged at the threaded end, is in matched connection with the threaded end, and is used for fixing the bolt rod when the bolt is screwed; a groove having a hexagonal structure is formed in the threaded end socket. According to the bolt, the hexagonal threaded end socket for fixing the bolt rod is arranged, so that the defect that one end is fixed, and the other end is screwed when the traditional bolt is fastened can be overcome, and a connecting part can be fastened conveniently and flexibly at one end of the bolt, time and labor can be saved, the labor intensity can be reduced, and the production efficiency and work efficiency can be improved; the bolt rod is made of a bendable spring steel material, so that through holes of parts can be connected on different lines, so that the production cost can be reduced. The flexible is convenient and practical, is applicable to various situations, and is worthy of wide popularization.

Description

technical field [0001] The invention relates to a bolt, in particular to a flexible bolt with a hexagonal groove threaded end. Background technique [0002] Bolts are widely used mechanical parts, including bolt heads and screw rods, which need to be matched with nuts to fasten and connect two parts with through holes. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. Bolt heads include hexagonal head, round head, square head, countersunk head, etc., among which hexagonal head is the most commonly used. Generally, the countersunk head is used where the surface is required to be smooth without protrusions after connection, because the countersunk head can be screwed into the part; the round head can also be screwed into the part, and the tightening force of the square head can be larger, but the size is large. [0003] The structure of the existing bolt a...

AI Technical Summary

Problems solved by technology

Generally, the countersunk head is used where the surface is required to be smooth without protrusions after connection, because the countersunk head can be screwed into the part; the round head can also be screwed into the part, and the tightening force of the square head can be larger, but the size is large

[0003] The structure of the existing bolt assembly is generally as figure 2 As shown, including the bolt head, the cylindrical screw with external thread on the bolt head and the nut that is connected with the screw, such a bolt structure has the following defects: During the tightening process of the bolt, due to the force, the nut and the bolt The head will inevitably slip or the screw rod will shake, so that it is necessary to fix the bolt head with auxiliary tools, and then use auxiliary tools or manpower to tighten the nuts, or need to use auxiliary tools to fix the nuts, and then use auxiliary tools to tighten the bolt head. Tighten to achieve the tightening of the bolts

That is to say, to realize the fastening of the bolt, one end of the bolt needs to be fixed and the other end should be tightened at the same time. If the connected parts have a large area and a thick thickness, that is, when the length of the threaded rod is long, two people need to work at the same time, which is time-consuming, laborious and laborious. High strength, especially in factories that require bolts to assemble parts in mass production, not only the production efficiency is low, but also the cost of human resources is high; if the bolts are placed in the through holes of the connecting parts, due to the limitation of space or the structure of the connecting parts, the bolt head may Impossible or difficult to insert tools, thereby affecting the tightening of bolts, thereby affecting the orderly operation of work

In addition, the screw is straight and cylindrical. If the through holes of the parts to be connected are not on the same straight line due to inaccurate machining accuracy, or due to the high requirements on the appearance of the parts, the bolt through holes can only be opened on the edge of the parts. The straight cylindrical The screw cannot be inserted into the above connecting parts. The enterprises that produce parts generally realize the assembly between the connecting parts by improving the processing accuracy of the connecting parts or precisely setting the structure of the parts, thereby increasing the difficulty of the production process and increasing the production cost. , while reducing production efficiency

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