Self-locking type spare tire carrier

Abstract

The invention relates to an automobile part, and discloses a self-locking type spare tire carrier. The self-locking type spare tire carrier comprises a chain, a support plate connected to the chain, acasing, a self-locking worm arranged in the casing, a self-locking mechanism arranged in the casing, a worm gear assembly arranged in the casing, and a lifting-and-lowering worm connected to the wormgear assembly, wherein the chain is wound around the worm gear assembly; the self-locking worm, the worm gear assembly and the lifting-and-lowering worm are all rotationally connected to the casing;the self-locking mechanism comprises a tilting rod which is rotationally connected to the casing; the self-locking worm and the lifting-and-lowering worm are arranged side by side; one end of the tilting rod is connected to the self-locking worm; and the other end of the tilting rod is connected to the worm gear assembly. The self-locking type spare tire carrier can lock the lifting-and-lowering worm by self through the cooperation of the self-locking worm and the self-locking mechanism so as to reliably stabilize a spare tire and facilitate the disassembly. After the position of the spare tire is fixed, the self-locking worm is tightened so that the self-locking mechanism can abut against the lifting-and-lowering worm. When the spare tire needs to be removed, the self-locking worm is first released so that a claw part is detached from a tooth part of the worm gear assembly, and then the lifting-and-lowering worm is released so that the spare tire can be removed.

Description

technical field [0001] The invention relates to auto parts, in particular to a self-locking spare tire rack. Background technique [0002] At present, the existing spare tires are generally locked on the frame or body through the cooperation of chains, pallets, and lifting worms. However, during the driving process of the vehicle, due to factors such as shaking and gravity, the lifting worms are easy to reverse and cause the chain to loosen. , The spare tire is lost, and the reliability is poor, especially the spare tire of the truck. Contents of the invention [0003] The purpose of the present invention is to provide a self-locking spare tire carrier, which can realize self-locking on the lifting worm, avoid the reverse rotation of the lifting worm, and improve the fastening reliability of the product. [0004] In order to solve the above technical problems, the present invention is solved through the following technical solutions: [0005] Self-locking spare tire carr...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing spare tires are generally locked on the frame or body through the cooperation of chains, pallets, and lifting worms. However, during the driving process of the vehicle, due to factors such as shaking and gravity, the lifting worms are easy to reverse and cause the chain to loosen. , the spare tire is lost, and the reliability is poor, especially the spare tire of the truck. The spare tire is bulky and has a large gravity. When encountering a place with bad road conditions, the lifting worm cannot be in a self-locking state at all times, and it is easy to loosen.

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