CN216923545U

CN216923545U - Leak-proof device for joint of oil inlet pipe

Info

Publication number: CN216923545U
Application number: CN202220540128.7U
Authority: CN
Inventors: 廖志楠; 李润丰; 刘衍双
Original assignee: Dongguan Shenzhen Energy Zhangyang Power Co ltd
Current assignee: Dongguan Shenzhen Energy Zhangyang Power Co ltd
Priority date: 2022-03-13
Filing date: 2022-03-13
Publication date: 2022-07-08
Anticipated expiration: 2032-03-13

Abstract

The utility model relates to the technical field of oil inlet pipe connection, in particular to an oil inlet pipe joint leakage-proof device which comprises an oil inlet pipe and an oil outlet pipe arranged on one side of the oil inlet pipe, wherein connecting sleeves are sleeved on the outer sides of the oil outlet pipe and the oil inlet pipe, leakage-proof sleeves are arranged on the inner sides of the connecting sleeves, a first locking sleeve and a second locking sleeve are respectively arranged on two sides of each connecting sleeve, a limiting convex ring matched with the first locking sleeve is arranged on the outer side of the oil inlet pipe, the first locking sleeve and the second locking sleeve are respectively connected with the connecting sleeves through threads, sealing grooves matched with the first locking sleeve and the second locking sleeve are respectively arranged at two ends of the inner side of each connecting sleeve, and sealing rings are arranged in the sealing grooves. The diameter of the oil outlet pipe is larger than that of the oil inlet pipe, so that the pressure impact at the joint is reduced, the service life of the leakage-proof sleeve is prolonged, the cross section of the leakage-proof sleeve is in a T shape, the oil inlet pipe and the oil outlet pipe are effectively sealed, and the sealing effect of equipment is improved.

Description

Leak-proof device for joint of oil inlet pipe

Technical Field

The utility model relates to the technical field of oil inlet pipe connection, in particular to a leakage-proof device for a joint of an oil inlet pipe.

Background

After the combustion engine is put into operation, the oil leakage often appears at the joint of the oil inlet pipe. And the inspection finds that each oil leakage is caused by the damage of the O-shaped ring. The reason for the damage of the O-shaped ring is caused by the residual stress of the pipeline, and after the joint is disassembled, the phenomenon that the pipeline is not aligned with the joint of the actuating mechanism in a natural state can be found, so that certain dislocation exists. The direct mount pipeline and coupling at every turn can lead to stress residual, and O type circle atress is uneven, and because hydraulic oil pressure is more than 160bar, opens and stops the impact force that the in-process given the pipeline great, has enlargied the uneven condition of atress of O type circle, so O type circle very easily damages.

In the prior art, the connection mode at the joint of the oil inlet pipe is simple, and the sealing ring is easily damaged under larger pressure, so that the oil leakage of the pipeline is caused, and the work of equipment is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a leakage-proof device for the joint of an oil inlet pipe.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an advance oil pipe junction leak protection device, is advancing oil pipe and setting up the play oil pipe in oil pipe one side including advancing oil pipe, it is equipped with the adapter sleeve to go out oil pipe and advance oil pipe outside cover, the adapter sleeve inboard is equipped with the leak protection cover, the adapter sleeve both sides are equipped with first lock sleeve and second lock sleeve respectively, advance the oil pipe outside be equipped with the spacing bulge loop of first lock sleeve adaptation, first lock sleeve and second lock sleeve pass through threaded connection with the adapter sleeve respectively, the inboard both ends of adapter sleeve are equipped with the seal groove of first lock sleeve and second lock sleeve adaptation respectively, be equipped with the sealing washer in the seal groove.

Preferably, the diameter of the oil inlet pipe is smaller than that of the oil outlet pipe, and the leakage-proof sleeve is matched with the oil outlet pipe and the oil inlet pipe.

Preferably, the leakage-proof sleeve comprises a rubber sleeve, a framework and a sealing ring, and the end faces of the oil outlet pipe and the oil inlet pipe are abutted against the sealing ring.

Preferably, the framework is made of metal, and the cross section of the framework is in a T shape.

Preferably, the first locking sleeve is abutted to the limiting convex ring, and the oil inlet pipe is detachably connected with the connecting sleeve.

Preferably, the oil outlet pipe is the same as the oil inlet pipe in structure.

The beneficial effects of the utility model are as follows:

compared with the prior art, the diameter of the oil outlet pipe is larger than that of the oil inlet pipe, so that the pressure impact at the joint is reduced, the service life of the leakage-proof sleeve is prolonged, and meanwhile, the cross section of the leakage-proof sleeve is in a T shape, so that the oil inlet pipe and the oil outlet pipe are effectively sealed, and the sealing effect of equipment is improved.

Drawings

FIG. 1 is a schematic sectional view of a leak-proof device at the joint of an oil inlet pipe according to the present invention;

FIG. 2 is a schematic view of a leak-proof sleeve structure of a leak-proof device at the joint of an oil inlet pipe according to the present invention;

fig. 3 is a schematic structural diagram at a in fig. 1.

In the figure: 1 first lock sleeve, 2 leak protection covers, 21 rubber sleeve, 22 skeletons, 23 sealing rings, 3 adapter sleeves, 31 seal grooves, 4 second lock sleeves, 5 play oil pipe, 6 advance oil pipe, 61 spacing bulge loops.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an oil inlet pipe junction leak protection device comprises an oil inlet pipe 6 and an oil outlet pipe 5 arranged on one side of the oil inlet pipe 6, wherein a connecting sleeve 3 is sleeved outside the oil outlet pipe 5 and the oil inlet pipe 6, a leak protection sleeve 2 is arranged inside the connecting sleeve 3, a first locking sleeve 1 and a second locking sleeve 4 are respectively arranged on two sides of the connecting sleeve 3, a limiting convex ring 61 adaptive to the first locking sleeve 1 is arranged outside the oil inlet pipe 6, the first locking sleeve 1 and the second locking sleeve 4 are respectively in threaded connection with the connecting sleeve 3, sealing grooves 31 adaptive to the first locking sleeve 1 and the second locking sleeve 4 are respectively arranged at two ends inside the connecting sleeve 3, and sealing rings 7 are arranged in the sealing grooves 31.

In this embodiment, advance oil pipe 6 diameter and be less than out oil pipe 5, leak protection cover 2 and go out oil pipe 5 and advance oil pipe 6 adaptation, improve sealed effect, reduce junction pressure shock.

Specifically, the leakage-proof sleeve 2 comprises a rubber sleeve 21, a framework 22 and a sealing ring 23, the end faces of the oil outlet pipe 5 and the oil inlet pipe 6 are abutted against the sealing ring 23, the service life and the structural strength of the leakage-proof sleeve 2 are improved, the framework 22 is made of metal, and the cross section of the framework is in a T shape.

Specifically, first lock sleeve 1 offsets with spacing bulge loop 61, advances to be connected for dismantling between oil pipe 6 and the adapter sleeve 3, convenient to detach maintenance of equipment.

Specifically, the oil outlet pipe 5 is identical in structure to the oil inlet pipe 6.

In this embodiment, go out oil pipe 5 diameter and be greater than into oil pipe 6, reduce junction pressure shock, improve 2 life of leak protection cover, the transversal T word shape of personally submitting of 2 of leak protection covers simultaneously effectively seals into oil pipe 6 and go out oil pipe 5, and the metal is adopted to the 22 materials of skeleton, improves 2 life and the structural strength of leak protection cover, improve the sealed effect of equipment.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides an advance oil pipe junction leak protection device, including advancing oil pipe (6) and setting up play oil pipe (5) advancing oil pipe (6) one side, its characterized in that, it is equipped with adapter sleeve (3) to go out oil pipe (5) and advance oil pipe (6) outside cover, adapter sleeve (3) inboard is equipped with leak protection cover (2), adapter sleeve (3) both sides are equipped with first lock sleeve (1) and second lock sleeve (4) respectively, advance oil pipe (6) outside be equipped with spacing bulge loop (61) of first lock sleeve (1) adaptation, first lock sleeve (1) and second lock sleeve (4) pass through threaded connection with adapter sleeve (3) respectively, adapter sleeve (3) inboard both ends are equipped with seal groove (31) of first lock sleeve (1) and second lock sleeve (4) adaptation respectively, be equipped with sealing washer (7) in seal groove (31).

2. The leakage-proof device for the joint of the oil inlet pipe as claimed in claim 1, wherein the diameter of the oil inlet pipe (6) is smaller than that of the oil outlet pipe (5), and the leakage-proof sleeve (2) is adapted to the oil outlet pipe (5) and the oil inlet pipe (6).

3. The oil inlet pipe joint leakage prevention device as claimed in claim 2, wherein the leakage prevention sleeve (2) comprises a rubber sleeve (21), a framework (22) and a sealing ring (23), and the end surfaces of the oil outlet pipe (5) and the oil inlet pipe (6) are abutted against the sealing ring (23).

4. The oil inlet pipe joint leakage prevention device as claimed in claim 3, wherein the framework (22) is made of metal and has a T-shaped cross section.

5. The oil inlet pipe joint leakage prevention device as claimed in claim 1, wherein the first locking sleeve (1) abuts against the limit convex ring (61), and the oil inlet pipe (6) is detachably connected with the connecting sleeve (3).

6. The leakage prevention device for the joint of the oil inlet pipe as claimed in claim 1, wherein the oil outlet pipe (5) has the same structure as the oil inlet pipe (6).