Piston sealing ring with good sealing performance
Technical Field
The utility model relates to the technical field of sealing rings, in particular to a piston sealing ring with good sealing performance.
Background
A seal ring is a device for preventing leakage of liquid or gas, and is generally made of an elastic material, and has a sealing effect.
The sealing ring can be used in various fields such as water supply and drainage, heating ventilation and air conditioning, fire protection, pharmacy, ships, automobiles, motorcycles and the like, the contact part of the part can be sealed through the sealing ring, so that a good sealing effect is achieved, the normal corresponding function of each contact part of the part is guaranteed, but in the prior art, the sealing is only carried out through the rubber ring when the sealing ring is used, the good sealing effect cannot be achieved, the contact between the sealing ring and a pipeline is not tight enough, the placed sealing ring is easy to loose, and meanwhile, the sealing ring cannot be conveniently adsorbed and fixed when the sealing ring is used.
Disclosure of utility model
The utility model aims to provide a piston sealing ring with good sealing performance, which solves the problems that in the prior art, sealing is carried out only through a rubber ring, a good sealing effect cannot be achieved, the contact between the piston sealing ring and a pipeline is not tight enough, the placed sealing ring is easy to loose, and meanwhile, the adsorption fixation of the sealing ring cannot be carried out conveniently during use.
In order to achieve the above purpose, the utility model provides a piston sealing ring with good sealing performance, which comprises an inner sealing ring, wherein the inner surface of the inner sealing ring is fixedly connected with a first rubber sealing ring, the outer surface of the inner sealing ring is fixedly connected with 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 with a compression spring, one end of the compression spring, which is far away from the mounting groove, is fixedly connected with an abutting block, the outer surface of the inner sealing ring is fixedly connected with an outer sealing ring, the inner surface of the outer sealing ring is movably connected with an elastic ring, the surface of the elastic ring is movably connected with a rigid ring, and the surface of the outer sealing ring is in threaded connection with a threaded movable sleeve.
Preferably, the inner sealing ring is cylindrical, the first rubber sealing ring and the second rubber sealing ring are circular, and the first rubber sealing ring is inlaid on the inner surface of the inner sealing ring.
Preferably, the second rubber sealing ring is inlaid on the outer surface of the inner sealing ring, the first rubber sealing ring and the second rubber sealing ring are two groups, and the mounting groove is a square groove.
Preferably, the two ends of the compression spring are respectively and fixedly connected with the mounting groove and the abutting block, and the abutting block is in sliding connection with the mounting groove through the compression spring.
Preferably, the cross section of the abutting block is in a right trapezoid shape, the inclined plane of the abutting block faces the direction of the piston plug, and the part below the inclined plane of the abutting block is located in the mounting groove.
Preferably, the outer sealing ring is cylindrical, a part of the inner surface of the outer sealing ring is provided with threads, and the elastic ring and the rigid ring are both circular.
Preferably, the elastic rings are distributed on two sides of the rigid ring in two groups, and the threaded movable sleeve is movably connected with the elastic rings through the outer sealing rings.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the fixed connection of interior sealing washer and first rubber seal ring, the fixed connection of interior sealing washer and second rubber seal ring, the mounting groove has been seted up to the surface of interior sealing washer, the fixed connection of mounting groove and compression spring, compression spring and butt piece, before using the piston to plug the pipeline, in will be plugged into the pipeline earlier, reuse piston to plug the inside of interior sealing washer afterwards, the internal surface and the piston contact of interior sealing washer this moment, the surface and the pipeline inner wall contact of interior sealing washer, the frictional force between piston and this structure can be increased to first rubber seal ring, the frictional force between this structure and the pipeline can be increased to second rubber seal ring and butt piece, thereby make the connection between piston, sealing washer and the pipeline inseparabler, sealing effect has been guaranteed.
2. Through the fixed connection of interior sealing washer and outer sealing washer, the swing joint of outer sealing washer and elastic ring, the swing joint of elastic ring and rigid ring, the threaded connection of outer sealing washer and screw thread movable sleeve, before inserting the pipeline with piston and interior sealing washer, cup joint screw thread movable sleeve on the pipeline earlier, place elastic ring and rigid ring at the internal surface of outer sealing washer afterwards, install interior sealing washer, outer sealing washer and piston on the pipeline at last, the second rubber sealing ring can contact with the pipeline inner wall, the elastic ring can contact with the pipeline surface, rotate screw thread movable sleeve afterwards, exert pressure through screw thread movable sleeve to two elastic rings, make the elastic ring receive the extrusion influence deformation respectively with outer sealing washer and pipeline in close contact, play double seal's effect, sealing effect has further been strengthened.
Drawings
FIG. 1 is a schematic perspective view of the structure of the present utility model;
FIG. 2 is a schematic exploded perspective view of the structure of the present utility model;
FIG. 3 is a schematic elevational view of the structure of the present utility model in section;
FIG. 4 is a schematic view in partial cross-section of the internal seal ring of the present utility model in perspective;
Fig. 5 is a schematic view of a perspective partial cross-section of the structure of the outer seal ring of the present utility model.
The device comprises a first rubber sealing ring, a second rubber sealing ring, a mounting groove, a compression spring, a abutting block, an outer sealing ring, an elastic ring, a rigid ring and a threaded movable sleeve, wherein the first rubber sealing ring, the second rubber sealing ring, the mounting groove, the compression spring, the abutting block, the outer sealing ring, the elastic ring, the rigid ring and the threaded movable sleeve are arranged in sequence, and the elastic ring is arranged in sequence.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, an embodiment of the present utility model is provided:
the piston sealing ring with good sealing performance comprises an inner sealing ring 1, wherein the inner sealing ring 1 is used for being contacted with the inner wall of a pipeline to realize preliminary sealing of the pipeline, the inner surface of the inner sealing ring 1 is fixedly connected with a first rubber sealing ring 2, the first rubber sealing ring 2 is contacted with a piston to increase the friction force between the inner sealing ring 1 and the piston, the outer surface of the inner sealing ring 1 is fixedly connected with a second rubber sealing ring 3, the second rubber sealing ring 3 is contacted with the inner wall of the pipeline to increase the friction force between the inner sealing ring 1 and the pipeline, the outer surface of the inner sealing ring 1 is provided with a mounting groove 4, the mounting groove 4 is used for mounting a compression spring 5 and an abutting block 6, the surface of the mounting groove 4 is fixedly connected with the compression spring 5, the compression spring 5 is used for pushing the pushed abutting block 6 back to the original position, the abutting block 6 abuts against the inner wall of the pipeline, thereby further increasing the friction force between the inner sealing ring 1 and the inner wall of the pipeline, further ensuring the tightness of the connection among the piston, the sealing ring and the pipeline, ensuring the sealing effect, fixedly connecting one end of the compression spring 5 away from the mounting groove 4 with the abutting block 6, abutting the block 6 against the inner wall of the pipeline, further increasing the friction force between the inner sealing ring 1 and the inner wall of the pipeline, fixedly connecting the outer surface of the inner sealing ring 1 with the outer sealing ring 7, wrapping the outer wall of the pipeline by the outer sealing ring 7, movably connecting the inner surface of the outer sealing ring 7 with the elastic ring 8, further sealing the pipeline by the elastic ring 8, movably connecting the surface of the elastic ring 8 with the rigid ring 9, enabling the elastic ring 8 to be extruded and deformed by the thread movable sleeve 10, connecting the surface of the outer sealing ring 7 with the thread movable sleeve 10, applying pressure to the two elastic rings 8 by the thread movable sleeve 10, the elastic ring 8 is pressed and deformed to be respectively in close contact with the outer sealing ring 7 and the pipeline, so that the double sealing effect is realized, and the sealing effect is further enhanced.
Further, the inner sealing ring 1 is cylindric, and the inner sealing ring 1 is used for contacting with the inner wall of pipeline, realizes the preliminary seal to the pipeline, and first rubber sealing ring 2 and second rubber sealing ring 3 are all circular, and the internal surface of inner sealing ring 1 is inlayed to first rubber sealing ring 2, and first rubber sealing ring 2 and piston contact for increase the frictional force between inner sealing ring 1 and the piston.
Further, the second rubber sealing ring 3 is inlaid on the outer surface of the inner sealing ring 1, the second rubber sealing ring 3 is in contact with the inner wall of the pipeline, the friction force between the inner sealing ring 1 and the pipeline is increased, the first rubber sealing ring 2 and the second rubber sealing ring 3 are two groups, the mounting groove 4 is a square groove, and the mounting groove 4 is used for mounting the compression spring 5 and the abutting block 6.
Further, the both ends of compression spring 5 respectively with mounting groove 4 and support and close piece 6 fixed connection, compression spring 5 is used for will being pushed away support and close piece 6 push back the normal position for support and close piece 6 support and close the pipeline inner wall, thereby further increase the frictional force between inner seal circle 1 and the pipeline inner wall, and then make the inseparabler of connection between piston, sealing washer and the pipeline, guaranteed sealed effect, support and close piece 6 and pass through compression spring 5 and mounting groove 4 sliding connection.
Further, the cross section of the abutting block 6 is in a right trapezoid shape, the inclined plane of the abutting block 6 faces the direction of the piston plug, the part below the inclined plane of the abutting block 6 is located inside the mounting groove 4, and the abutting block 6 is used for abutting against the inner wall of the pipeline, so that the friction force between the inner sealing ring 1 and the inner wall of the pipeline is further increased.
Further, the outer sealing ring 7 is cylindrical, a part of the inner surface of the outer sealing ring 7 is provided with threads, the outer sealing ring 7 is used for wrapping the outer wall of a pipeline, the elastic ring 8 and the rigid ring 9 are circular, and the elastic ring 8 is used for realizing further sealing of the pipeline.
Further, the elastic rings 8 are distributed on two sides of the rigid ring 9 in two groups, the rigid ring 9 enables the elastic rings 8 to be extruded and deformed by the thread movable sleeve 10, the thread movable sleeve 10 is movably connected with the elastic rings 8 through the outer sealing ring 7, the thread movable sleeve 10 is used for applying pressure to the two elastic rings 8, the elastic rings 8 are enabled to be extruded and deformed to be respectively in tight contact with the outer sealing ring 7 and a pipeline, a double sealing effect is achieved, and a sealing effect is further enhanced.
When the pipeline is sealed, the threaded movable sleeve 10 is sleeved on the pipeline, then the elastic ring 8 and the rigid ring 9 are placed on the inner surface of the outer sealing ring 7, then the inner sealing ring 1 and the outer sealing ring 7 are installed on the pipeline, the outer wall of the inner sealing ring 1 is contacted with the inner wall of the pipeline, the inner surfaces of the elastic ring 8 and the rigid ring 9 are contacted with the outer wall of the pipeline, the abutting block 6 is abutted on the inner wall of the pipeline, the second rubber sealing ring 3 is contacted with the inner wall of the pipeline, the friction force between the inner sealing ring 1 and the pipeline is increased, then the piston is plugged into the inner part of the inner sealing ring 1, the inner wall of the inner sealing ring 1 is contacted with the piston, the friction force between the piston and the inner sealing ring 1 is increased by the first rubber sealing ring 2, so that the connection between the piston, the sealing ring and the pipeline is tighter, the sealing effect is ensured, and then the threaded movable sleeve 10 is rotated to apply pressure to the two elastic rings 8, the elastic rings 8 are tightly contacted with the outer sealing ring 7 and the pipeline respectively by extrusion deformation, and the effect of double sealing is further enhanced.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.