Patent ID: 11920714
Assignee: RIFENG ENTERPRISE (FOSHAN) CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A sealing structure, comprising an inner pipe, an outer pipe, and a sealing ring, wherein the outer pipe is detachably sleeved on the inner pipe, a slot for inserting a pipe is formed between an inner wall of the outer pipe and an outer wall of the inner pipe, and the outer wall of the inner pipe is provided with a sealing groove for placing the sealing ring; the sealing ring comprises a main body provided with a lip; the sealing groove comprises a first sealing groove and a second sealing groove, the first sealing groove and the second sealing groove are stepped, and a depth of the first sealing groove is less than that of the second sealing groove; the bottom of the lip fits the bottom of the first sealing groove, a thickness of the lip in a non-compressed state is greater than the depth of the first sealing groove, and a width of the lip in the non-compressed state is less than that of the first sealing groove; and the bottom of the main body fits the bottom of the second sealing groove, and a thickness of the main body in the non-compressed state is less than or equal to the depth of the second sealing groove; and
the sealing structure comprises an indication ring disposed inside the slot, wherein the indication ring is pushed by the pipe to cross the lip, and the outer pipe is provided with an observation hole for observing whether the indication ring is moved into the position where it should be.