Self-locking fixing mechanism for baggage holder

Abstract

The invention belongs to the technical field of automobile parts, and provides a self-locking fixing mechanism for a baggage holder. The self-locking fixing mechanism comprises a body portion, a riveting nut, a base and a bolt stud. A fixing plate is arranged at the lower end of the body portion, a limiting hole is formed in the fixing plate, the riveting nut is inserted into the fixing plate through the limiting hole, the base is arranged at the lower end of the riveting nut, a connecting through hole is formed in one side of the base, a first meshed disc is arranged inside the connecting through hole, an insertion hole is formed in the first meshed disc, the bolt stud is inserted into the base through the insertion hole, the bolt stud is provided with a middle end, and a second meshed disc meshed with the first meshed disc is arranged at the middle end. Compared with the prior art, the self-locking fixing mechanism has the advantages that forward meshing teeth and reverse meshing teeth are meshed, force needed by forward twisting is small, the forward meshing teeth and the reverse meshing teeth are meshed during reverse twisting, the triangular nut has the tapping and locking functions, the two functions are achieved at the same time, and even when torque force is large, the bolt stud and the riveting nut cannot idle.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and in particular relates to a self-locking fixing mechanism of a luggage rack. Background technique [0002] Under normal circumstances, the connection and fixation between the base and the aluminum tube in the luggage rack is usually fixed with double-ended studs, and the locking torque of the double-ended studs at the end of the torx head generally breaks within 10N.M. Considering the torque loss, the occlusal torque between the double-ended stud and the riveting nut of the aluminum tube of the luggage rack is mainly about 8N. It will cause looseness between the studs and the riveting nuts of the luggage rack, and then the double-ended studs will run idly and cause the luggage rack to be unable to be disassembled, which will bring relatively large troubles to the installation and disassembly of the customer. Contents of the invention [0003] The technical problem to be solved by the pre...

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Problems solved by technology

[0002] Under normal circumstances, the connection and fixation between the base and the aluminum tube in the luggage rack is usually fixed with double-ended studs, and the locking torque of the double-ended studs at the end of the torx head generally breaks within 10N.M. Considering the torque loss, the occlusal torque between the double-headed stud and the riveting nut of the aluminum tube of the luggage rack is mainly about 8N. It will lead to looseness between the studs and the riveting nuts of the luggage rack, and then the double-ended studs will idling, which will cause the luggage rack to be unable to be disassembled, which will bring more trouble to the customer's installation and disassembly.

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