CN214699603U

CN214699603U - Sealing structure based on elastic rubber ring

Info

Publication number: CN214699603U
Application number: CN202121045064.5U
Authority: CN
Inventors: 江治华; 江懿; 江淼
Original assignee: Chongqing Huasai Plastic Manufacturing Co ltd
Current assignee: Chongqing Huasai Plastic Manufacturing Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-11-12
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses a seal structure based on elastic rubber circle, including first pipeline and second pipeline, the first pipeline internal fixation is provided with the cooperation circle, the second pipeline sets up with first pipeline and cooperation circle cooperation, the one end that the second pipeline was kept away from to first pipeline is provided with first through-hole, the one end that the first pipeline was kept away from to the second pipeline is provided with the second through-hole, be provided with rubber seal between cooperation circle lateral wall and the first pipeline inner wall, the rubber seal middle part is provided with the annular groove, it is provided with flexible gasbag to inlay in the annular groove, one side that second pipeline was kept away from to rubber seal is fixed to be provided with the annular box, annular box inner wall sealing sliding connection has annular piston board, the annular box passes through the breather pipe intercommunication with flexible gasbag. The utility model discloses still can keep good sealed effect after long-term the use, improve the life and the sealing performance of sealing rubber circle greatly.

Description

Sealing structure based on elastic rubber ring

Technical Field

The utility model relates to a rubber circle seals technical field, especially relates to a seal structure based on elastic rubber circle.

Background

The rubber sealing ring is a sealing structure which is a ring-shaped cover composed of one or more parts, is fixed on one ferrule or pipeline of the bearing and is contacted with the other ferrule or pipeline or forms a narrow labyrinth gap to prevent lubricating oil or liquid substances from leaking and foreign matters from invading.

The influence of temperature and life cycle that current seal structure based on elastic rubber circle received the transported substance in its rubber circle when in actual use, and the rubber circle takes place deformation easily, causes the involution, and its and pipeline inner wall appear the gap, and sealed effect variation thereupon.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the rubber ring is easy to deform after using a period of time in the prior art to influence the defect of sealing effect, thereby providing a sealing structure based on the elastic rubber ring.

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

a sealing structure based on an elastic rubber ring comprises a first pipeline and a second pipeline, wherein a matching ring is fixedly arranged in the first pipeline, the second pipeline is arranged in a matching way with the first pipeline and the matching ring, a first through hole is formed in one end, far away from the second pipeline, of the first pipeline, a second through hole is formed in one end, far away from the first pipeline, of the second pipeline, a rubber sealing ring is arranged between the outer side wall of the matching ring and the inner wall of the first pipeline, an annular groove is formed in the middle of the rubber sealing ring, a telescopic air bag is embedded in the annular groove, an annular box is fixedly arranged on one side, far away from the second pipeline, of the rubber sealing ring, an annular piston plate is connected to the inner wall of the annular box in a sealing and sliding way, the annular box is communicated with the telescopic air bag through an air pipe, the air pipe penetrates through the rubber sealing ring, and a plurality of groups of uniformly distributed springs are fixedly connected between the inner wall, far away from the rubber sealing ring, of the annular box and the annular piston plate, and inert gas is arranged between one side of the annular piston plate, which is far away from the spring, and the inner wall of the annular box.

Preferably, the second pipeline is in threaded connection with the inner wall of the first pipeline and the outer side wall of the matching ring.

Preferably, one side of the telescopic air bag, which is close to the inner wall of the first pipeline, is fixedly provided with a layer of sealing gasket with uniform thickness.

Preferably, the spring is made of manganese steel.

Preferably, the thickness of the telescopic air bag is half of the thickness of the rubber sealing ring.

The utility model has the advantages that: through the cooperation use of ring box, annular piston board, breather pipe and spring, the spring keeps great thrust to annular piston board all the time, ensures that flexible gasbag lateral wall tightly offsets with first pipeline inner wall all the time, sets up flexible gasbag through inlaying at the rubber seal lateral wall to avoid rubber seal to roll up in rubber seal deformation after long-term the use, and sealed effect is not good, has improved rubber seal's life and sealing performance greatly.

Drawings

Fig. 1 is an overall schematic view of a sealing structure based on an elastic rubber ring provided by the present invention;

fig. 2 is a schematic view of the first pipeline and the second pipeline of the sealing structure based on the elastic rubber ring according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: the air-permeable pipe comprises a first pipeline 1, a second pipeline 2, a first through hole 3, a second through hole 4, a matching ring 5, a rubber sealing ring 6, a telescopic air bag 7, an annular box 8, an annular piston plate 9, a spring 10 and an air pipe 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a sealing structure based on an elastic rubber ring comprises a first pipeline 1 and a second pipeline 2, a matching ring 5 is fixedly arranged in the first pipeline 1, the second pipeline 2 is arranged in cooperation with the first pipeline 1 and the matching ring 5, the second pipeline 2 is in threaded connection with the inner wall of the first pipeline 1 and the outer side wall of the matching ring 5, a first through hole 3 is arranged at one end of the first pipeline 1 far away from the second pipeline 2, a second through hole 4 is arranged at one end of the second pipeline 2 far away from the first pipeline 1, a rubber sealing ring 6 is arranged between the outer side wall of the matching ring 5 and the inner wall of the first pipeline 1, an annular groove is arranged in the middle of the rubber sealing ring 6, an extensible air bag 7 is embedded in the annular groove, a layer of sealing gasket with uniform thickness is fixedly arranged at one side of the extensible air bag 7 close to the inner wall of the first pipeline 1, the thickness of the extensible air bag 7 is one half of the thickness of the rubber sealing ring 6, the side wall of the rubber seal ring 6 is embedded with the telescopic air bag 7, so that the rubber seal ring 6 is prevented from deforming and rolling inwards after the rubber seal ring 6 is used for a long time, the sealing effect is poor, the service life and the sealing performance of the rubber seal ring 6 are greatly improved, one side of the rubber seal ring 6, which is far away from the second pipeline 2, is fixedly provided with the annular box 8, the inner wall of the annular box 8 is hermetically and slidably connected with the annular piston plate 9, the annular box 8 is communicated with the telescopic air bag 7 through the vent pipe 11, the vent pipe 11 penetrates through the rubber seal ring 6, a plurality of groups of uniformly distributed springs 10 are fixedly connected between the inner wall of one side of the annular box 8, which is far away from the rubber seal ring 6, and the annular piston plate 9, the springs 10 are made of manganese steel materials, the springs 10 made of manganese steel have strong wear resistance and good extrusion capacity, the service life of the springs 10 is prolonged, and inert gas is arranged between one side of the annular piston plate 9, which is far away from the springs 10, and the inner wall of the annular box 8, this inert gas can be nitrogen gas, and chemical stability is strong, does not receive external environment influence basically, uses through the cooperation of annular box 8, annular piston board 9, breather pipe 11 and spring 10, and spring 10 keeps great thrust to annular piston board 9 all the time, ensures that flexible gasbag 7 lateral wall tightly offsets with first pipeline 1 inner wall all the time.

The utility model discloses in, after

first pipeline

1 and 2 cooperations of second pipeline, spring 10 promotes annular piston plate 9 and extrudes breather pipe 11 and then get into flexible gasbag 7 with the inert gas in the annular box 8, flexible gasbag 7 follows with and tightly offsets with 1 inner wall of first pipeline, be in the same place with the tight fit of rubber seal 6, sealed effect is better, after long-term the use, when 6 surfaces of rubber seal take place deformation, spring 10 promotes annular piston plate 9 and removes the certain distance this moment, replenish inert gas in flexible gasbag 7 again, guarantee flexible gasbag 7 and first pipeline 1's sealed effect constantly.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A sealing structure based on an elastic rubber ring comprises a first pipeline (1) and a second pipeline (2), wherein a matching ring (5) is fixedly arranged in the first pipeline (1), the second pipeline (2) is matched with the first pipeline (1) and the matching ring (5), the sealing structure is characterized in that a first through hole (3) is formed in one end, away from the second pipeline (2), of the first pipeline (1), a second through hole (4) is formed in one end, away from the first pipeline (1), of the second pipeline (2), a rubber sealing ring (6) is arranged between the outer side wall of the matching ring (5) and the inner wall of the first pipeline (1), an annular groove is formed in the middle of the rubber sealing ring (6), a telescopic air bag (7) is embedded in the annular groove, an annular box (8) is fixedly arranged on one side, away from the second pipeline (2), of the rubber sealing ring (6), annular box (8) inner wall sealing sliding connection has annular piston board (9), annular box (8) and flexible gasbag (7) are through breather pipe (11) intercommunication, breather pipe (11) run through rubber seal (6) and set up, fixedly connected with multiunit evenly distributed's spring (10) between one side inner wall that rubber seal (6) were kept away from in annular box (8) and annular piston board (9), and be provided with inert gas between one side that spring (10) were kept away from in annular piston board (9) and annular box (8) inner wall.

2. An elastic rubber ring based sealing structure according to claim 1, characterized in that the second pipe (2) is in threaded connection with the inner wall of the first pipe (1) and the outer side wall of the mating ring (5).

3. A sealing structure based on an elastic rubber ring according to claim 1, characterized in that a layer of sealing gasket with uniform thickness is fixedly arranged on one side of the telescopic air bag (7) close to the inner wall of the first pipeline (1).

4. An elastic rubber ring based sealing structure according to claim 1, characterized in that the spring (10) is made of manganese steel material.

5. An elastic rubber ring based sealing structure according to claim 1, characterized in that the thickness of the telescopic air bag (7) is half of the thickness of the rubber sealing ring (6).