Fastening device

Abstract

The invention discloses a fastening device. The fastening device comprises a first plate piece, a second plate piece and a connecting piece, wherein the first plate piece and the second plate piece are arranged in parallel, a non-through positioning groove body is formed in the surface, facing the second plate piece, of the first plate piece, and a non-through positioning groove body is formed inthe surface, facing the first plate piece, of the second plate piece; the connecting piece comprises a body, a first connecting part and a second connecting part, wherein the body is provided with a first end part and a second end part opposite to the first end part; the first connecting part is arranged at the first end part of the body and protrudes towards the first plate piece, so that a firststep surface surrounding the first connecting part is formed at the first end part of the body, and the first step surface is used for abutting against the first plate piece after the first connecting part is inserted into the positioning groove body of the first plate piece; and the second connecting part is arranged at the second end part of the body and protrudes towards the second plate piece, so that a second step surface surrounding the second connecting part is formed at the second end part of the body, and the second step surface is used for abutting against the second plate piece after the second connecting part is inserted into the positioning groove body of the second plate piece.

Description

technical field [0001] The invention relates to the technical field of fastening devices, in particular to a fastening device. Background technique [0002] The statements in this section only provide background information related to the present disclosure and may not constitute prior art. [0003] In industrial production equipment, due to functional requirements, it is very common for the corresponding parts of the product to be designed with a double-layer structure. For example, many parts in the automobile structure need to have a local double-layer structure. Sometimes this double-layer structure does not have very strict requirements for connection strength, and some require easy installation. At present, the commonly used connection methods in mechanical structures are usually to connect two parts with screws, bolts and other threaded connection methods. Especially the larger parts are provided with through threaded holes or through holes for the screws, bolts and...

AI Technical Summary

Problems solved by technology

At present, the commonly used connection methods in mechanical structures are usually to connect two parts with screws, bolts and other threaded connection methods. Especially the larger parts are provided with through threaded holes or through holes for the screws, bolts and other connecting parts to pass through. In the case of relatively high sealing requirements, the setting of the through threaded holes or through holes will Destroy the integrity of the seal, causing instability in the work of the overall component

Images