CN214368407U

CN214368407U - Rotary sealing joint

Info

Publication number: CN214368407U
Application number: CN202120054857.7U
Authority: CN
Inventors: 任车利; 吴佳旭; 励江; 陈佳男; 徐银聪; 邵栋杰
Original assignee: Easun Pneumatic Science and Technology Co Ltd
Current assignee: Easun Pneumatic Science and Technology Co Ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-10-08
Anticipated expiration: 2031-01-11

Abstract

The utility model relates to a rotary sealing joint, which comprises a long conduit, a wear-resistant ring, a pressure head, a sealing V-shaped ring and a valve body seat, wherein one end surface of the long conduit is a conical surface, and the wear-resistant ring, the sealing V-shaped ring and the pressure head are sequentially sleeved and connected with the conical surface end of the long conduit; the pressure head is a hollow ring body, the sealing V-shaped ring is arranged in the hollow ring body of the pressure head, the end surface of the pressure head is connected with one side of the wear-resisting ring, and the other side of the wear-resisting ring is connected with the conical surface of the long guide pipe; the wear-resisting ring and the pressure head are sleeved in the valve body seat. This application stable performance reduces the wearing and tearing of sealed V type circle, the life of greatly increased product.

Description

Rotary sealing joint

Technical Field

The utility model belongs to the technical field of the sealing member and specifically relates to a pneumatic rotary seal connects that air feeder used.

Background

Along with the development of science and technology, the improvement of technique, automobile product are new and new, have also proposed higher requirement to the air feeder product, and air feeder on the existing market is at the during operation, and the pipe in the rotary seal connects is direct contact with sealed V type circle, and when the product used under rotatory environment, the rotational stress can lead to the extensive wearing and tearing of sealed V type circle, and the back has been prolonged for a long time, and sealed V type circle wearing and tearing are serious, influence the life-span of air feeder product.

Thus, the prior art air supply devices also have a place to lift.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stability is good, installs the pneumatic rotary seal joint in air feeder to solve prior art's technical problem.

In order to achieve the above purpose, the present application provides a rotary sealing joint, where the sealing joint includes a long conduit, a wear-resistant ring, a pressure head, a sealing V-shaped ring, and a valve body seat, where one end surface of the long conduit is a conical surface, and the wear-resistant ring, the sealing V-shaped ring, and the pressure head are sequentially sleeved on the conical surface end of the long conduit; the pressure head is a hollow ring body, the sealing V-shaped ring is arranged in the hollow ring body of the pressure head, the end surface of the pressure head is connected with one side of the wear-resisting ring, and the other side of the wear-resisting ring is connected with the conical surface of the long guide pipe; the wear-resisting ring and the pressure head are sleeved in the valve body seat.

The rotary seal joint according to the preferred embodiment of the present application further comprises a raised ring disposed between the head and the sealing V-ring.

According to this application preferred embodiment rotary seal connect, the valve body seat includes the pipe gasket, lower valve body and goes up the valve body, the connector setting of valve body is in down in the connector of going up the valve body, the pipe gasket sets up in the connector of valve body down, wear-resisting ring and pressure head cover are established in the connector of valve body down.

The technical scheme of this application improves the pneumatic rotary seal joint in air feeder at present, designs a wear-resisting ring of high temperature resistant material of a section, makes its more stable, reduces the wearing and tearing of sealed V type circle, and the life of greatly increased product has the bulge loop in pressure head punishment distribution in addition, can be used for storing lubricating grease, and the cost is practiced thrift through reducing dynamic friction area simultaneously.

Compared with the prior art, the method has the following advantages:

firstly, the sealing V-shaped ring has stable performance, reduces the abrasion of the sealing V-shaped ring, and greatly prolongs the service life of the product;

secondly, this application pressure head punishment has the bulge loop, can be used for storing lubricating grease, simultaneously through reducing the dynamic friction area, practices thrift the cost.

Of course, implementing any particular embodiment of the present disclosure does not necessarily have all of the above technical advantages at the same time.

Drawings

FIG. 1 is a schematic view of a sealing joint of the present application;

FIG. 2 is a schematic view of a rotating portion of FIG. 1;

fig. 3 is an exploded view of the sealing joint of the present application.

Detailed Description

The present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, a schematic view of a sealing joint of the present application is a pneumatic rotary sealing joint used in an air supply device, in which a long conduit 1 is in a rotary state during operation, the sealing joint includes the long conduit 1, a wear-resistant ring 2, a pressure head 3, a sealing V-ring 5, and a valve body seat, wherein an end surface of the long conduit 1 is a conical surface, as shown in the figure, the conical surface is a conical surface protruding radially outward, the wear-resistant ring 2, the sealing V-ring 5, and the pressure head 3 are sequentially sleeved on and connected to a conical surface end of the long conduit 1, as shown in the figure, an air circulation duct is provided in a tube center of the long conduit 1, and during operation, air enters the tube center of the long conduit 1 from below in the figure and flows upward.

In fig. 2, the pressure head 3 is a hollow ring body, the sealing V-ring 5 is arranged in the hollow ring body of the pressure head 3, the sealing V-ring 5 plays a role of sealing when in operation, prevents air from leaking out of the long conduit 1, and ensures the use efficiency of the air supply device, the end surface of the pressure head 3 is connected with one side of the wear-resistant ring 2, and the other side of the wear-resistant ring 2 is connected with the conical surface of the long conduit 1; the wear-resisting ring 2 and the pressure head 3 are sleeved in the valve body seat, and as shown in the figure, the pressure head 3 and the valve body seat are in interference fit, so that the wear-resisting ring 2 and the sealing V-shaped ring 5 are prevented from being separated from the valve body seat; when the sealing device works, the conical surface end of the long guide pipe 1 moves upwards and rotates, and the conical surface end of the long guide pipe 1 is contacted with the wear-resisting ring 2 during movement, so that the sealing V-shaped ring 5 cannot be damaged.

Preferably, this application sealing joint still includes bulge loop 8, bulge loop 8 sets up between pressure head 3 and the sealed V type circle 5, bulge loop 8 is used for storing lubricating grease, avoids the environment of long-term high temperature to lead to lubricating grease to volatilize, simultaneously through reducing the dynamic friction area, the life of greatly increased product.

In addition, the valve body seat comprises a pipe gasket 4, a lower valve body 6 and an upper valve body 7, wherein a connector of the lower valve body 6 is arranged in a connector of the upper valve body 7, the pipe gasket 4 is arranged in the connector of the lower valve body 6, as shown in fig. 2, the pipe gasket 4 is an annular body, a through hole is formed in the center of the pipe gasket, one side, facing the long guide pipe 1, of the pipe gasket 4 is a conical surface, the conical surface of the pipe gasket 4 and the conical surface end of the long guide pipe 1 can be contacted but are not necessarily contacted when the pipe gasket 4 is in a standing state, the conical surface end of the long guide pipe 1 is protected from being directly contacted with the inner wall of the connector of the lower valve body 6 by the existence of the pipe gasket 4, and air is blown to the long guide pipe 1 through the central through hole of the pipe gasket 4 when the valve body seat is in operation; in addition, wear-resisting ring 2 and pressure head 3 cover are established in the connector of lower valve body 6, in fig. 2 a ladder is seted up to the inner wall of the connector of lower valve body 6, wear-resisting ring 2's outer edge contact the ladder can not unlimited to go deep in the connector of lower valve body 6, leave for the conical surface end of long pipe 1 can upwards move about.

To sum up, the assembly process of the sealing joint of the application is as follows: wear ring 2, sealed V type circle 5 and pressure head 3 are adorned in advance to long pipe 1, pack into the connector of valve body 6 down with the tube gasket 4, make and be full of lubricating grease in the cavity, put into the connector cavity of last valve body 7 with the subassembly of above-mentioned long pipe 1 and press into the connector of valve body 6 down with pressure head 3 interference and fix, at last valve body 7 with valve body 6O type circle of packing into respectively down, it is fixed with lower valve body 6 with last valve body 7 with the bullet pad with the screw, nut and wave washer are installed at last valve body 7 top. The lower valve body assembly is assembled by the lower valve body 6 and the long guide pipe 1.

According to the application, the wear-resisting ring 2 made of a high-temperature-resistant wear-resistant self-lubricating material is additionally arranged between the long guide pipe 1 and the sealing V-shaped ring 5, and under the working condition of high-speed rotation, long-term high temperature and friction are one of the reasons for aging and failure of the sealing V-shaped ring 5, so that the long guide pipe 1 is prevented from directly contacting and rubbing the sealing V-shaped ring 5, the abrasion of the sealing V-shaped ring 5 is reduced, and the service life of a product is greatly prolonged; in addition, design bulge loop 8 between pressure head 3 and sealed V type circle 5 can be used for storing lubricating grease, avoids the environment of long-term high temperature to lead to lubricating grease to volatilize, simultaneously through reducing the dynamic friction area, the life of greatly increased product.

Compared with the prior art, the method has the following advantages:

The above disclosure is only for the purpose of describing several embodiments of the present application, but the present application is not limited thereto, and any variations that can be considered by those skilled in the art are intended to fall within the scope of the present application.

Claims

1. A rotary sealing joint is characterized by comprising a long guide pipe, a wear-resistant ring, a pressure head, a sealing V-shaped ring and a valve body seat, wherein one end surface of the long guide pipe is a conical surface, and the wear-resistant ring, the sealing V-shaped ring and the pressure head are sequentially sleeved and connected with the conical surface end of the long guide pipe; the pressure head is a hollow ring body, the sealing V-shaped ring is arranged in the hollow ring body of the pressure head, the end surface of the pressure head is connected with one side of the wear-resisting ring, and the other side of the wear-resisting ring is connected with the conical surface of the long guide pipe; the wear-resisting ring and the pressure head are sleeved in the valve body seat.

2. The rotary seal joint as recited in claim 1 further comprising a raised ring disposed between the head and the seal V-ring.

3. The rotary seal joint according to claim 2, wherein said valve body seat comprises a pipe gasket, a lower valve body and an upper valve body, wherein said connecting head of said lower valve body is disposed in said connecting port of said upper valve body, said pipe gasket is disposed in said connecting head of said lower valve body, and said wear ring and said pressure head are fitted in said connecting head of said lower valve body.