Sealing element

Abstract

The utility model discloses a sealing element, and belongs to the technical field of sealing. The sealing piece comprises an elastic body and a rigid body. The elastic body is provided with a first protrusion, a second protrusion and a through hole, the first protrusion and the second protrusion are located at the two ends of the elastic body respectively, and the through hole is located in the middle of the elastic body and penetrates through the elastic body. The rigid body is wrapped in the elastic body. According to the sealing piece, the protrusion is arranged on the elastic body, and the protrusion and the inner wall of the pipe are extruded to form sealing; when the two pipe fittings are eccentrically connected, the protrusions are extruded to deform, the problem that in the prior art, one side of a sealing ring is compressed excessively, and the other side of the sealing ring is compressed insufficiently is solved, and the overall sealing effect of the sealing element is improved. Due to the fact that the elastic body deforms when being stressed, when the sealing piece inclines, the two ends of the sealing piece cannot be clamped with the inner wall of the pipe fitting, and the sealing piece is convenient to disassemble and maintain. The rigid body can provide rigid support for the sealing piece, and the problem of leakage at the joint caused by excessive deformation of the sealing piece is prevented.

Description

Technical Field

[0001] The utility model relates to a sealing element, belonging to the technical field of sealing. Background Art

[0002] Pipe sealing involves effectively sealing interconnected pipe fittings within a pipeline, as well as the interfaces between pipelines and equipment, to ensure normal operation of the pipeline and prevent problems such as air and water leaks, or damage to production equipment. There are various methods for sealing pipes, and different sealing methods can be selected based on different application scenarios and needs.

[0003] Among them, the use of sealing rings is a commonly used sealing method. The seal in this sealing method consists of a metal tube and two sealing rings. A groove is set on the metal tube, and the sealing ring is set in the groove to form a seal. The seal needs to be assembled from three parts and has a complex structure. When in use, the two ends of the metal tube are respectively installed in different pipe fittings to connect the two pipe fittings. The elastic deformation performance of the sealing ring is used to produce a sealing effect of compacting the pipe fittings. However, when the axes of the two pipe fittings to be connected are not on the same axis and are eccentric, the sealing ring will be compressed too much on one side and not compressed enough on the other side, resulting in leakage problems in the connection between the two pipe fittings. After the eccentric installation, the two ends of the metal tube will be stuck between the inner walls of the two pipe fittings, making the seal difficult to disassemble and difficult to repair. Utility Model Content

[0004] The purpose of the utility model is to provide a seal to solve the problem in the prior art that when the axes of two pipes to be connected are eccentric, one side of the sealing ring is compressed too much and the other side is not compressed enough, resulting in leakage in the connection between the two pipes; and the problem that when eccentrically installed, the two ends of the metal pipe and the inner walls of the two pipes are stuck, making the sealing ring difficult to disassemble and repair.

[0005] The utility model is achieved through the following technical solutions:

[0006] A sealing member comprises: an elastic body and a rigid body;

[0007] The elastic body is provided with a first protrusion, a second protrusion and a through hole, the first protrusion and the second protrusion are respectively located at two ends of the elastic body, and the through hole passes through the elastic body;

[0008] The rigid body is encased in the elastic body. The rigid body provides rigid support for the seal, preventing the seal from excessively deforming under external forces, which could lead to leakage at the connection. Furthermore, encasing the rigid body in the elastic body effectively prevents corrosion of the rigid body by the medium flowing through the pipe after the pipe is connected, thereby extending the service life of the seal.

[0009] In one embodiment of the present invention, both the first protrusion and the second protrusion are annular and surround the two ends of the elastic body.

[0010] In one embodiment of the present invention, the sealing member is connected to a first tube and a second tube at both ends, the first protrusion abuts against the inner wall of the first tube, and the second protrusion abuts against the inner wall of the second tube. The protrusion on the elastic body is squeezed and can be in close contact with the inner wall of the tube to form a seal.

[0011] In one embodiment of the present invention, the rigid body is provided with a third protrusion, which extends to the outside of the elastic body and surrounds the middle position of the rigid body. The third protrusion can provide positioning during the installation process, so that the two ends of the seal are evenly installed in the two pipes. At the same time, the seal is processed and manufactured by compression molding. The protrusion on the elastic body cannot fall off directly during demolding. It is an inverted mold and requires certain auxiliary devices for demolding. The third protrusion can assist the seal in demolding, solving the demolding problem of the seal and improving the product qualification rate.

[0012] In one embodiment of the present invention, the apertures at both ends of the elastic body are the same in size, and the aperture of the rigid body is adapted to the aperture of the elastic body.

[0013] In one embodiment of the present invention, the diameters of the two ends of the elastic body are different, and the aperture of the rigid body is adapted to the aperture of the elastic body. The diameters of the two ends of the elastic body are different, so that two pipes with different diameters can be connected to achieve the function of variable diameter connection.

[0014] In one embodiment of the present invention, the elastic body is provided with at least two protrusions.

[0015] In one embodiment of the present invention, the cross-sections of the first protrusion and the second protrusion are arc-shaped.

[0016] In one embodiment of the present invention, the first pipe and the second pipe are provided with countersunk holes.

[0017] In one embodiment of the present invention, the elastic body is made of elastic material.

[0018] Beneficial effects

[0019] 1. The seal provided by the utility model has a simple structure and is formed as a whole by compression molding. The seal is provided with an elastomer and a protrusion is provided on the elastomer. The protrusion is squeezed with the inner wall of the pipe to form a seal; when the two pipes are eccentrically connected, the protrusion is squeezed and deformed, and through self-adjustment, the seal is offset so that the protrusion is evenly stressed, solving the problem of excessive compression on one side of the sealing ring and insufficient compression on the other side in the prior art, thereby improving the overall sealing effect of the seal; because the elastomer will deform when subjected to force, when the seal is tilted, the two ends of the seal will not get stuck with the inner wall of the pipe, thereby facilitating the disassembly and maintenance of the seal.

[0020] 2. The seal provided by the present invention also includes a rigid body, which can provide rigid support for the seal to prevent the seal from being deformed too much under the action of external force, resulting in leakage at the connection between the seal and the pipe; the rigid body is wrapped in an elastomer, which can effectively prevent the medium in the pipe from corroding the rigid body and improve the service life of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a sealing member according to an embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional view of a sealing member according to an embodiment of the present invention.

[0023] Figure 3 This is a cross-sectional view of the cooperation between a sealing member and a pipe fitting according to an embodiment of the present invention.

[0024] Figure 4 This is a cross-sectional view of a pipe provided by the utility model when it is eccentric and cooperates with a sealing member of an embodiment.

[0025] Figure 5 This is a cross-sectional view of a sealing member according to another embodiment of the present invention.

[0026] Figure 6 This is a cross-sectional view of the cooperation between a sealing member and a pipe fitting according to another embodiment of the present invention.

[0027] Figure 7 This is a cross-sectional view of the pipe provided by the utility model when it is eccentric and cooperates with a sealing member of another embodiment.

[0028] In the figure: 1, elastic body; 11, first protrusion; 12, second protrusion; 13, through hole; 2, rigid body; 21, third protrusion; 3, first pipe fitting; 4, second pipe fitting; 100, sealing member. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] like Figure 1-4 As shown, the present application provides a seal, which 100 can be applied to the connection between components such as pipe wall structures with countersunk holes, part outer shells, flanges or bases.

[0033] In some embodiments, the diameters of the two ends of the seal 100 are the same, and can be used for connecting pipes with the same diameter. The seal 100 includes an elastomer 1 and a rigid body 2, the rigid body 2 is wrapped in the elastomer 1, the diameters of the two ends of the elastomer 1 are the same, and the diameters of the two ends of the rigid body 2 are adapted to the diameters of the two ends of the elastomer 1. When connected to the pipe, the elastomer 1 is squeezed and can be in close contact with the inner wall of the pipe to form a seal. The rigid body 2 can provide rigid support for the seal 100 to prevent the seal 100 from being deformed too much under the action of external force, resulting in leakage at the connection. At the same time, wrapping the rigid body 2 in the elastomer 1 can effectively avoid the corrosion of the rigid body 2 by the medium flowing in the pipe after the pipe is connected, thereby improving the service life of the seal 100.

[0034] like Figure 2As shown, in some embodiments, the ends of the elastomer 1 are provided with a first protrusion 11 and a second protrusion 12. Both the first protrusion 11 and the second protrusion 12 are annular and surround the ends of the elastomer 1, respectively. A through hole 13 is provided in the center of the elastomer 1 for the circulation of the medium after the pipe is connected. The rigid body 2 is wrapped in the elastomer 1. The third protrusion 21 is provided in the center of the rigid body 2. The third protrusion 21 extends to the outside of the elastomer 1 and is also annular and surrounds the rigid body 2. The third protrusion 21 provides a positioning function during installation, ensuring that the ends of the seal 100 are evenly installed in the two pipes. At the same time, the seal 100 is manufactured by compression molding. The protrusions on the elastomer 1 cannot fall off directly during demolding. It is an inverted mold, requiring certain auxiliary devices for demolding. The third protrusion 21 can assist in demolding the seal 100, solving the demolding problem of the seal 100 and improving the product qualification rate.

[0035] like Figure 3 As shown, in some embodiments, the seal 100 is installed in the first tube 3 and the second tube 4. The first tube 3 and the second tube 4 have countersunk holes with the same aperture. The outer diameter of the first protrusion 11 is larger than the aperture of the first tube 3, so that the inner wall of the first tube 3 abuts the first protrusion 11, causing the first protrusion 11 to elastically deform, thereby compacting the first tube 3 and forming a seal. The outer diameter of the second protrusion 12 is larger than the aperture of the second tube 4. The second protrusion 12 abuts the inner wall of the second tube 4, causing elastic deformation, forming a seal between the second protrusion 12 and the second tube 4. Adhesive is added between the seal 100 and the first tube 3 and the second tube 4 to ensure a more secure connection between the seal 100 and the two tubes.

[0036] like Figure 4As shown, in some embodiments, the first and second tube members 3 and 4 have the same aperture, but their axes are not coaxial, resulting in an eccentricity between them. The seal 100 is installed at an angle to connect the first and second tube members 3 and 4. The first protrusion 11 of the elastomer 1 is squeezed and deformed against the inner wall of the first tube member 3, and the second protrusion 12 is squeezed and deformed against the inner wall of the second tube member 4, thereby forming a seal between the seal 100 and the two tube members. Because the elastomer 1 is entirely composed of an elastic material and can elastically deform under external pressure, when the first and second tube members 3 and 4 become eccentric, the elastomer 1 deforms according to the pressure applied to the inner walls of the tube members and offsets itself, ensuring uniform force on the protrusions on the elastomer 1. This solves the problem in the prior art of eccentric installation, where one side of the seal ring is over-compressed and the other side is under-compressed, resulting in leakage at the connection between the seal and the tube member. This improves the sealing effect of the seal 100. The elastic body 1 is elastic, so there is no jamming between the two ends of the elastic body 1 and the inner walls of the two pipes. It is easy to disassemble and maintain, solving the problem of jamming between the two ends of the metal pipe and the inner walls of the pipe when the pipe is eccentric in the prior art.

[0037] like Figure 5-7 As shown, in another embodiment, the present application provides a seal, wherein the pipe diameters at both ends of the seal 100 are different, and can be used to connect pipes with different diameters. The seal 100 includes an elastic body 1 and a rigid body 2. The rigid body 2 is wrapped in the elastic body 1. The pipe diameters at both ends of the elastic body 1 are different, and two pipes with different diameters can be connected to achieve the function of a variable diameter connection. The pipe diameters at both ends of the rigid body 2 are adapted to the pipe diameters at both ends of the elastic body 1. The protrusions on the elastic body 1 are squeezed against the inner wall of the pipe to form a seal for the pipe, and the rigid body 2 provides rigid support for the seal 100.

[0038] In some embodiments, a first protrusion 11 and a second protrusion 12 are provided at both ends of the elastomer 1. The first protrusion 11 and the second protrusion 12 are both annular and surround the two ends of the elastomer 1 respectively. A through hole 13 is provided in the middle of the elastomer 1 for the circulation of the medium after the pipe is connected. The rigid body 2 is wrapped in the elastomer 1. A third protrusion 21 is provided in the middle of the rigid body 2. The third protrusion 21 extends to the outside of the elastomer 1. The third protrusion 21 is also annular and surrounds the rigid body 2. The third protrusion 21 can provide positioning during the installation process, so that the two ends of the seal 100 are evenly installed in the two pipes; at the same time, the third protrusion 21 can assist the seal 100 in demolding, solving the demolding problem of the seal 100 and improving the product qualification rate.

[0039] like Figure 6As shown, in some embodiments, the apertures of the first and second tubes 3 and 4 differ, and the diameters of the tubes at both ends of the seal 100 are adapted to the diameters of the tubes to be connected. The first protrusion 11 abuts against the inner wall of the first tube 3, elastically deforming to form a seal between the first protrusion 11 and the first tube 13. The second protrusion 12 abuts against the inner wall of the second tube 4, elastically deforming to form a seal between the second protrusion 12 and the second tube 3. Adhesive is added between the seal 100 and the two tubes to enhance the secure connection between them.

[0040] like Figure 7 As shown, in some embodiments, the apertures of the first and second tubes 3 and 4 are different, and their axes are not aligned. The diameters of the two ends of the seal 100 are adapted to the apertures of the first and second tubes 3 and 4, respectively. The first protrusion 11 of the elastomer 1 is squeezed and deformed against the inner wall of the first tube 3, and the second protrusion 12 is squeezed and deformed against the inner wall of the second tube 4, thereby forming a seal between the seal 100 and the two tubes. The elastomer 1 deforms according to the pressure applied to the inner walls of the tubes and offsets itself through self-adjustment, ensuring that the protrusions on the elastomer 1 are evenly stressed. This solves the problem of eccentric installation in the prior art, where one side of the seal ring is over-compressed and the other side is under-compressed, resulting in leakage at the connection between the seal and the tube. This improves the sealing effect of the seal 100. Due to the elasticity of the elastomer 1, there is no jamming between the ends of the elastomer 1 and the inner walls of the two tubes, making it easy to disassemble and maintain.

[0041] Optionally, a plurality of protrusions may be provided on the elastomer 1 to increase the sealing performance between the sealing member 100 and the pipe fitting.

[0042] Optionally, the cross-section of the first protrusion 11 and the second protrusion 12 of the elastomer 1 can be arc-shaped or square. Preferably, the first protrusion and the second protrusion of the elastomer 1 are arc-shaped. When the two pipes are eccentric, the arc-shaped protrusions can better fit with the inner wall of the pipe and always maintain an extruded state, thereby improving the sealing effect of the seal 100.

[0043] Optionally, the material of the elastomer 1 is an elastic material. Preferably, the material of the elastomer 1 is rubber. Rubber has good compressibility and is wear-resistant and corrosion-resistant.

[0044] Optionally, the rigid body 2 may be made of a hard material such as metal or plastic, which has a certain supporting force and can provide rigid support for the sealing member 100 .

[0045] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

[0047] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be noted that for those skilled in the art, without departing from the principles of the present invention, various improvements and modifications can be made to the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention. Therefore, the scope of protection of this utility model patent shall be based on the appended claims.

Claims

1. A seal, characterized in that: include: an elastic body (1) and a rigid body (2); The elastic body (1) is provided with a first protrusion (11), a second protrusion (12) and a through hole (13), wherein the first protrusion (11) and the second protrusion (12) are respectively located at two ends of the elastic body (1), and the through hole (13) passes through the elastic body (1); The rigid body (2) is wrapped in the elastic body (1).

2. A seal according to claim 1, characterized in that: The first protrusion (11) and the second protrusion (12) are both annular and surround the two ends of the elastic body (1).

3. A seal according to claim 2, characterized in that: The sealing member (100) is connected to a first pipe member (3) and a second pipe member (4) at both ends; the first protrusion (11) abuts against the inner wall of the first pipe member (3); and the second protrusion (12) abuts against the inner wall of the second pipe member (4).

4. A sealing member according to claim 1, characterized in that: The rigid body (2) is provided with a third protrusion (21), the third protrusion (21) extending to the outside of the elastic body (1), and the third protrusion (21) surrounds the middle position of the rigid body (2).

5. A sealing member according to claim 1, characterized in that: The apertures at both ends of the elastic body (1) are of the same size, and the aperture of the rigid body (2) is adapted to the aperture of the elastic body (1).

6. A sealing member according to claim 1, characterized in that: The diameters of the two ends of the elastic body (1) are different, and the aperture of the rigid body (2) is adapted to the aperture of the elastic body (1).

7. A sealing member according to claim 2, characterized in that: The elastic body (1) is provided with at least two protrusions.

8. A sealing member according to claim 2, characterized in that: The cross sections of the first protrusion (11) and the second protrusion (12) are arc-shaped.

9. A sealing member according to claim 3, characterized in that: The first pipe member (3) and the second pipe member (4) are provided with countersunk holes.

10. A sealing member according to claim 1, characterized in that: The elastic body (1) is made of elastic material.

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