Piston sealing ring with good sealing performance

Abstract

The utility model relates to the technical field of sealing rings, in particular to a piston sealing ring with good sealing performance, which comprises an inner sealing ring, the inner surface of the inner sealing ring is fixedly connected with a first rubber sealing ring, and the outer surface of the inner sealing ring is fixedly connected with a second rubber sealing ring. The inner sealing ring and the first rubber sealing ring are fixedly connected, the inner sealing ring and the second rubber sealing ring are fixedly connected, the mounting groove is formed in the outer surface of the inner sealing ring, the mounting groove and the compression spring are fixedly connected, and the compression spring and the abutting block are fixedly connected. Then the piston is plugged into the inner sealing ring, at the moment, the friction force between the piston and the structure can be increased by the first rubber sealing ring, and the friction force between the structure and the pipeline can be increased by the second rubber sealing ring and the abutting block, so that the piston, the sealing ring and the pipeline are connected more tightly, and the sealing effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a piston sealing ring with good sealing performance. Background Art

[0002] A sealing ring is a device used to prevent leakage of liquid or gas. It is usually made of elastic material and has a sealing effect.

[0003] Sealing rings are used in many fields such as water supply and drainage, HVAC, fire protection, pharmaceuticals, ships, automobiles, motorcycles, etc. The sealing rings can seal the contact parts of the parts, thereby playing a good sealing role and ensuring the normal functions of the corresponding contact parts of the parts. However, in the prior art, when used, the sealing is only performed by rubber rings, which cannot play a good sealing role, the contact between the pipe is not tight enough, and the placed sealing ring is easy to loosen. At the same time, the sealing ring cannot be conveniently adsorbed and fixed when used. Utility Model Content

[0004] The purpose of the utility model is to provide a piston sealing ring with good sealing performance, so as to solve the problems in the prior art proposed in the above background technology that when in use, the sealing is only performed by a rubber ring, which cannot play a good sealing role, the contact between the sealing ring and the pipeline is not tight enough, and the placed sealing ring is easy to loosen. At the same time, the sealing ring cannot be conveniently adsorbed and fixed when in use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a piston sealing ring with good sealing performance, comprising an inner sealing ring, the inner surface of the inner sealing ring is fixedly connected to a first rubber sealing ring, the outer surface of the inner sealing ring is fixedly connected to a second rubber sealing ring, the outer surface of the inner sealing ring is provided with a mounting groove, the surface of the mounting groove is fixedly connected to a compression spring, the end of the compression spring away from the mounting groove is fixedly connected to an abutment block, the outer surface of the inner sealing ring is fixedly connected to an outer sealing ring, the inner surface of the outer sealing ring is movably connected to an elastic ring, the surface of the elastic ring is movably connected to a rigid ring, and the surface of the outer sealing ring is threadedly connected to a threaded movable sleeve.

[0006] Preferably, the inner sealing ring is cylindrical, the first rubber sealing ring and the second rubber sealing ring are both annular, and the first rubber sealing ring is embedded in the inner surface of the inner sealing ring.

[0007] Preferably, the second rubber sealing ring is embedded in the outer surface of the inner sealing ring, the first rubber sealing ring and the second rubber sealing ring are both in two groups, and the mounting groove is a square groove.

[0008] Preferably, two ends of the compression spring are fixedly connected to the mounting groove and the abutment block respectively, and the abutment block is slidably connected to the mounting groove via the compression spring.

[0009] Preferably, the cross section of the abutment block is a right-angled trapezoid, the inclined surface of the abutment block faces the direction of the piston, and the portion below the inclined surface of the abutment block is located inside the mounting groove.

[0010] Preferably, the outer sealing ring is cylindrical, a portion of the inner surface of the outer sealing ring is provided with threads, and the elastic ring and the rigid ring are both annular.

[0011] Preferably, the elastic rings are distributed in two groups on both sides of the rigid ring, and the threaded movable sleeve is movably connected to the elastic ring through an outer sealing ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the fixed connection between the inner sealing ring and the first rubber sealing ring, the fixed connection between the inner sealing ring and the second rubber sealing ring, the outer surface of the inner sealing ring is provided with a mounting groove, the mounting groove and the compression spring are fixedly connected, and the compression spring and the abutment block are fixedly connected. Before using the piston to plug the pipeline, the inner sealing ring is first inserted into the pipeline, and then the piston is inserted into the interior of the inner sealing ring. At this time, the inner surface of the inner sealing ring contacts the piston, and the outer surface of the inner sealing ring contacts the inner wall of the pipeline. The first rubber sealing ring will increase the friction between the piston and the structure, and the second rubber sealing ring and the abutment block will increase the friction between the structure and the pipeline, thereby making the connection between the piston, the sealing ring and the pipeline tighter and ensuring the sealing effect.

[0014] 2. Through the fixed connection between the inner sealing ring and the outer sealing ring, the movable connection between the outer sealing ring and the elastic ring, the movable connection between the elastic ring and the rigid ring, and the threaded connection between the outer sealing ring and the threaded sleeve, before inserting the piston and the inner sealing ring into the pipeline, first put the threaded sleeve on the pipeline, then place the elastic ring and the rigid ring on the inner surface of the outer sealing ring, and finally install the inner sealing ring, the outer sealing ring and the piston on the pipeline. At this time, the second rubber sealing ring will contact the inner wall of the pipeline, and the elastic ring will contact the outer surface of the pipeline. Then rotate the threaded sleeve to apply pressure to the two elastic rings through the threaded sleeve, so that the elastic rings are deformed by extrusion and are in close contact with the outer sealing ring and the pipeline respectively, playing a double sealing role and further enhancing the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model in front view of the cross section;

[0018] Figure 4 It is a schematic diagram of a three-dimensional partial cross-section of the structure of the inner sealing ring of the utility model;

[0019] Figure 5 It is a schematic diagram of a three-dimensional partial cross-section of the structure of the outer sealing ring of the utility model.

[0020] In the figure: 1, inner sealing ring; 2, first rubber sealing ring; 3, second rubber sealing ring; 4, mounting groove; 5, compression spring; 6, abutment block; 7, outer sealing ring; 8, elastic ring; 9, rigid ring; 10, threaded movable sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 , an embodiment provided by the utility model:

[0023] A piston sealing ring with good sealing performance comprises an inner sealing ring 1, which is used to contact the inner wall of a pipeline to achieve preliminary sealing of the pipeline. A first rubber sealing ring 2 is fixedly connected to the inner surface of the inner sealing ring 1, and the first rubber sealing ring 2 contacts the piston to increase the friction between the inner sealing ring 1 and the piston. A second rubber sealing ring 3 is fixedly connected to the outer surface of the inner sealing ring 1, and the second rubber sealing ring 3 contacts the inner wall of the pipeline to increase the friction between the inner sealing ring 1 and the pipeline. An installation groove 4 is provided on the outer surface of the inner sealing ring 1, and the installation groove 4 is used to install a compression spring 5 and an abutment block 6. A compression spring 5 is fixedly connected to the surface of the installation groove 4, and the compression spring 5 is used to push the abutment block 6 that has been pushed away back to its original position, so that the abutment block 6 abuts against the inner wall of the pipeline, thereby further increasing the friction between the inner sealing ring 1 and the inner wall of the pipeline, and thus making the connection between the piston, the sealing ring and the pipeline more secure. Tight, ensuring the sealing effect, the end of the compression spring 5 away from the mounting groove 4 is fixedly connected with an abutment block 6, and the abutment block 6 is used to abut against the inner wall of the pipe, thereby further increasing the friction between the inner sealing ring 1 and the inner wall of the pipe, the outer surface of the inner sealing ring 1 is fixedly connected with an outer sealing ring 7, and the outer sealing ring 7 is used to wrap the outer wall of the pipe, and the inner surface of the outer sealing ring 7 is movably connected with an elastic ring 8, and the elastic ring 8 is used to achieve further sealing of the pipe, and the surface of the elastic ring 8 is movably connected with a rigid ring 9, and the rigid ring 9 allows the elastic ring 8 to be squeezed and deformed by a threaded movable sleeve 10, and the surface of the outer sealing ring 7 is threadedly connected with a threaded movable sleeve 10, and the threaded movable sleeve 10 is used to apply pressure to the two elastic rings 8, so that the elastic ring 8 is deformed by the extrusion and is in close contact with the outer sealing ring 7 and the pipe respectively, playing a double sealing role, further enhancing the sealing effect. The utility model is only for the sealing of pipes such as water pipes.

[0024] Furthermore, the inner sealing ring 1 is cylindrical and is used to contact the inner wall of the pipeline to achieve preliminary sealing of the pipeline. The first rubber sealing ring 2 and the second rubber sealing ring 3 are both annular. The first rubber sealing ring 2 is embedded in the inner surface of the inner sealing ring 1. The first rubber sealing ring 2 is in contact with the piston to increase the friction between the inner sealing ring 1 and the piston.

[0025] Furthermore, the second rubber sealing ring 3 is embedded in the outer surface of the inner sealing ring 1, and the second rubber sealing ring 3 contacts the inner wall of the pipe to increase the friction between the inner sealing ring 1 and the pipe. The first rubber sealing ring 2 and the second rubber sealing ring 3 are both in two groups, and the mounting groove 4 is a square groove. The mounting groove 4 is used to install the compression spring 5 and the abutment block 6.

[0026] Furthermore, the two ends of the compression spring 5 are fixedly connected to the mounting groove 4 and the abutment block 6 respectively. The compression spring 5 is used to push the abutment block 6 that has been pushed away back to its original position, so that the abutment block 6 abuts against the inner wall of the pipeline, thereby further increasing the friction between the inner sealing ring 1 and the inner wall of the pipeline, thereby making the connection between the piston, the sealing ring and the pipeline tighter, ensuring the sealing effect, and the abutment block 6 is slidably connected to the mounting groove 4 through the compression spring 5.

[0027] Furthermore, the cross-section of the abutment block 6 is a right-angled trapezoid, the inclined surface of the abutment block 6 faces the direction of the piston plug, and the portion below the inclined surface of the abutment block 6 is located inside the mounting groove 4. The abutment block 6 is used to abut against the inner wall of the pipe, thereby further increasing the friction between the inner sealing ring 1 and the inner wall of the pipe.

[0028] Furthermore, the outer sealing ring 7 is cylindrical, a portion of the inner surface of the outer sealing ring 7 is threaded, the outer sealing ring 7 is used to wrap the outer wall of the pipeline, the elastic ring 8 and the rigid ring 9 are both annular, and the elastic ring 8 is used to achieve further sealing of the pipeline.

[0029] Furthermore, the elastic rings 8 are distributed in two groups on both sides of the rigid ring 9. The rigid ring 9 allows the elastic ring 8 to be squeezed and deformed by the threaded movable sleeve 10. The threaded movable sleeve 10 is movably connected to the outer sealing ring 7 and the elastic ring 8. The threaded movable sleeve 10 is used to apply pressure to the two elastic rings 8, so that the elastic rings 8 are squeezed and deformed and are in close contact with the outer sealing ring 7 and the pipeline respectively, thereby playing a double sealing role and further enhancing the sealing effect.

[0030] Working principle: When sealing the pipeline, first sleeve the threaded sleeve 10 on the pipeline, then place the elastic ring 8 and the rigid ring 9 on the inner surface of the outer sealing ring 7, then install the inner sealing ring 1 and the outer sealing ring 7 on the pipeline, so that the outer wall of the inner sealing ring 1 contacts the inner wall of the pipeline, and the inner surfaces of the elastic ring 8 and the rigid ring 9 contact the outer wall of the pipeline. At this time, the abutment block 6 will abut against the inner wall of the pipeline, and the second rubber sealing ring 3 will contact the inner wall of the pipeline. The second rubber sealing ring 3 and the abutment block 6 will both increase the friction between the inner sealing ring 1 and the pipeline, and then use the piston to insert it into the interior of the inner sealing ring 1. At this time, the inner wall of the inner sealing ring 1 contacts the piston, and the first rubber sealing ring 2 will increase the friction between the piston and the inner sealing ring 1, so that the connection between the piston, the sealing ring and the pipeline is tighter, ensuring the sealing effect, and then rotate the threaded sleeve 10, and apply pressure to the two elastic rings 8 through the threaded sleeve 10, so that the elastic ring 8 is deformed by the extrusion and is in close contact with the outer sealing ring 7 and the pipeline respectively, playing a double sealing role, further enhancing the sealing effect.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A piston sealing ring with good sealing performance, comprising an inner sealing ring (1), characterized in that: The inner surface of the inner sealing ring (1) is fixedly connected to a first rubber sealing ring (2), the outer surface of the inner sealing ring (1) is fixedly connected to a second rubber sealing ring (3), the outer surface of the inner sealing ring (1) is provided with a mounting groove (4), the surface of the mounting groove (4) is fixedly connected to a compression spring (5), the end of the compression spring (5) away from the mounting groove (4) is fixedly connected to an abutment block (6), the outer surface of the inner sealing ring (1) is fixedly connected to an outer sealing ring (7), the inner surface of the outer sealing ring (7) is movably connected to an elastic ring (8), the surface of the elastic ring (8) is movably connected to a rigid ring (9), and the surface of the outer sealing ring (7) is threadedly connected to a threaded movable sleeve (10).

2. A piston sealing ring with good sealing performance according to claim 1, characterized in that: The inner sealing ring (1) is cylindrical, the first rubber sealing ring (2) and the second rubber sealing ring (3) are both annular, and the first rubber sealing ring (2) is embedded in the inner surface of the inner sealing ring (1).

3. A piston sealing ring with good sealing performance according to claim 1, characterized in that: The second rubber sealing ring (3) is embedded in the outer surface of the inner sealing ring (1), the first rubber sealing ring (2) and the second rubber sealing ring (3) are both in two groups, and the installation groove (4) is a square groove.

4. A piston sealing ring with good sealing performance according to claim 1, characterized in that: The two ends of the compression spring (5) are respectively fixedly connected to the mounting groove (4) and the abutment block (6), and the abutment block (6) is slidably connected to the mounting groove (4) via the compression spring (5).

5. A piston sealing ring with good sealing performance according to claim 1, characterized in that: The cross section of the abutment block (6) is in the form of a right-angled trapezoid, the inclined surface of the abutment block (6) faces the direction of the piston, and the portion below the inclined surface of the abutment block (6) is located inside the mounting groove (4).

6. A piston sealing ring with good sealing performance according to claim 1, characterized in that: The outer sealing ring (7) is cylindrical, a portion of the inner surface of the outer sealing ring (7) is provided with threads, and the elastic ring (8) and the rigid ring (9) are both annular.

7. A piston sealing ring with good sealing performance according to claim 1, characterized in that: The elastic rings (8) are distributed in two groups on both sides of the rigid ring (9), and the threaded movable sleeve (10) is movably connected through the outer sealing ring (7) and the elastic ring (8).

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