Fast plug-pull waterproof plug

Abstract

The invention discloses a fast inserting-drawing water proof plug, comprising a plug shell with a socket end; wherein the external surface of the plug shell is provided with an integrative sealing face which extends from the plug shell surface near the socket end face to the socket end face and realizes radial sealing fit with the sealing ring on the socket when the plug is inserted into the socket corresponding with the plug; the back of the sealing face on the plug shell is sheathed with a lock sleeve, and the lock sleeve is provided with a lock mechanism which spaces mutually with the corresponding lock mechanism on the socket when the plug is inserted into the corresponding socket; a dismountable positioning device is arranged between the part of the lock sleeve far from the socket end of the plug shell and the plug shell. The plug shell and the sealing face of the plug are integrated into a whole in the invention, thereby fundamentally avoiding the water proof detect of leakage gap of the original product between the plug shell and the sealing ring where the sealing face is arranged, thus realizing higher water proof requirement.

Description

Technical field [0001] The invention relates to the technical field of connectors. Background technique [0002] The existing quick-plug waterproof plug structure is such as image 3 As shown, the fixing sleeve 21 is sleeved on the front end of the plug housing 23, and the fixing sleeve 21 is fixed on the plug housing 23 through the riveting structure 25 that is turned outwards on the front end of the plug housing 23. The outer circumference of the fixing sleeve 21 is provided with a socket. The radial sealing surface of the sealing ring 26 is matched to achieve waterproof after the head and the seat are inserted. The locking sleeve 22 is sleeved on the plug housing 23 and placed behind the fixing sleeve 21. The front end of the locking sleeve 22 is used for A finger-like locking piece that fits with the socket around the circle. The rear end of the locking sleeve 22 is mounted on the annular step on the outer surface of the plug housing 23 to achieve axial limit. The locking slee...

AI Technical Summary

Problems solved by technology

In this structure, due to the blocking assembly relationship between the rear end surface of the locking sleeve 22 and the annular step of the plug housing 23, the locking sleeve 22 must be inserted from the front end of the plug housing 23, and the installation method of the locking sleeve 22 is different. It is determined that the fixed sleeve 21 can only be designed as a single accessory and installed to match at the end. In essence, it is determined from the design concept that it will become the leakage surface, and the fixed sleeve 21 and the plug housing 23 are fixed by riveting technology. As we all know, the riveting process cannot High waterproof requirements are achieved, so after the head and socket are mated, the liquid will penetrate through the leakage surface between the fixed sleeve and the plug housing, resulting in the failure of the seal of the fixed sleeve 21

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