High-pressure working rubber sealing ring with multiple sealing structure

Abstract

The utility model relates to rubber seal ring technical field discloses a high pressure working condition rubber seal ring with multiple sealing structure, including seal ring body, the front end of seal ring body is provided with inner clamping groove, the inside installation of inner clamping groove has trapezoidal check ring, the inside both sides of inner clamping groove are installed and clamped block, the inside inlay of inner clamping groove has inner check ring, the rear end of seal ring body is provided with rear clamping groove, the rear end of rear clamping groove is provided with rear check block, the rear end of seal ring body is provided with rear check along. The utility model discloses through setting up multiple sealing structure, the inside inlay of inner clamping groove that seal ring body front end sets up has trapezoidal check ring, to increase the support and sealing of seal ring body, the inside upper and lower clamping of inner clamping groove has inner check ring, the clamped block of inner clamping groove front end also increases the connectivity of seal ring body clamping, to increase the sealing of inner clamping groove clamping of seal ring body, to realize multiple sealing function.

Description

Technical Field

[0001] This utility model relates to the field of rubber sealing ring technology, specifically a high-pressure working condition rubber sealing ring with multiple sealing structures. Background Technology

[0002] High-pressure conditions typically refer to extreme environments with pressures exceeding 10 MPa, or even reaching 100 MPa or higher. Under high-pressure conditions, the design and material selection of rubber seals must take into special consideration the mechanical strength, pressure resistance, elastic recovery ability, and extrusion resistance of the materials.

[0003] Because high-pressure seals are prone to failure due to pressure and other extreme conditions, we propose a high-pressure rubber seal with a multi-layered sealing structure to address this problem. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure rubber sealing ring with a multi-seal structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure working condition rubber sealing ring with a multi-seal structure, comprising a sealing ring body, an inner snap-fit ​​groove at the front end of the sealing ring body, a trapezoidal retaining ring installed inside the inner snap-fit ​​groove, snap-fit ​​blocks installed on both sides of the inner side of the inner snap-fit ​​groove, and an inner retaining ring embedded inside the inner side of the inner snap-fit ​​groove.

[0006] As a further technical solution of this utility model, the inner snap-fit ​​groove is opened at the front end of the sealing ring body, and the snap-fit ​​block is disposed at the front end of the inner snap-fit ​​groove.

[0007] As a further technical solution of this utility model, the inner retaining ring is provided with two sets of embedded in the top and bottom of the inner locking groove, and the trapezoidal retaining ring is embedded in the inner locking groove.

[0008] As a further technical solution of this utility model, a rear groove is provided at the rear end of the sealing ring body, a rear stop block is provided at the rear end of the rear groove, and a rear stop edge is provided at the rear end of the sealing ring body.

[0009] As a further technical solution of this utility model, a hydrogenated nitrile rubber layer is provided inside the sealing ring body, a fluororubber layer is provided inside the sealing ring body, and a polytetrafluoroethylene layer is provided inside the sealing ring body.

[0010] As a further technical solution of this utility model, the polytetrafluoroethylene layer, the hydrogenated nitrile rubber layer and the fluororubber layer are mixed together, and the sealing ring body is provided with the polytetrafluoroethylene layer, the hydrogenated nitrile rubber layer and the fluororubber layer inside.

[0011] As a further technical solution of this utility model, the sealing ring body is provided with an inner connecting ring, and an inner groove is opened on the inner side of the inner connecting ring, and an embedded rubber tube is embedded in the inner groove.

[0012] As a further technical solution of this utility model, the inner slot is provided in multiple sets, the inner slot is opened on the inner side of the inner connecting ring, and the inlaid rubber tube is embedded in the inside of the inner slot.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this high-pressure working condition rubber sealing ring with multiple sealing structures not only realizes multiple sealing functions and material reinforcement functions, but also realizes inner ring sealing functions;

[0014] (1) By setting up a multi-seal structure, the present invention is beneficial as follows: when in use, a trapezoidal retaining ring is embedded in the inner snap groove at the front end of the sealing ring body to increase the support and sealing performance of the sealing ring body. Inner retaining rings are snapped up and down inside the inner snap groove. The snap block at the front end of the inner snap groove also increases the connection of the sealing ring body snapping, thereby increasing the sealing performance of the inner snap groove snapping on the sealing ring body, thus realizing the multi-seal function.

[0015] (2) By setting up a material-strengthened structure, the present invention is beneficial in that: when in use, a hydrogenated nitrile rubber layer, a fluororubber layer and a polytetrafluoroethylene layer are set inside the sealing ring body. The hydrogenated nitrile rubber layer has excellent high pressure resistance, oil resistance, high temperature resistance and compression set resistance. The fluororubber layer has chemical resistance, high hardness and is suitable for extreme high pressure and corrosive environments. The polytetrafluoroethylene layer has pressure resistance and low friction. The strength of the sealing ring body is increased by mixing the hydrogenated nitrile rubber layer, the fluororubber layer and the polytetrafluoroethylene layer, thereby realizing the material-strengthened function.

[0016] (3) By setting an inner ring sealing structure, the present invention is beneficial in that: multiple sets of inner grooves are set on the inner side of the inner connecting ring during use, and an inlaid rubber tube is embedded in the inner groove. When the inner connecting ring inside the sealing ring is engaged, the sealing performance of the inner connecting ring can be increased, thereby realizing the inner ring sealing function. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a side sectional view of the present invention.

[0019] Figure 3 This is an enlarged cross-sectional schematic diagram of the inner card slot of this utility model;

[0020] Figure 4This is a partial enlarged cross-sectional view of the sealing ring body of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the sealing ring body and the inner connecting ring of this utility model.

[0022] In the diagram: 1. Sealing ring body; 2. Inner snap-fit ​​groove; 3. Inner connecting ring; 4. Trapezoidal retaining ring; 5. Rear retaining edge; 6. Rear snap-fit ​​groove; 7. Inner retaining ring; 8. Snap-fit ​​block; 9. Rear retaining block; 10. Polytetrafluoroethylene layer; 11. Hydrogenated nitrile rubber layer; 12. Fluororubber layer; 13. Inner snap-fit ​​groove; 14. Embedded rubber tube. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 An embodiment of this utility model is provided: a high-pressure working condition rubber sealing ring with multiple sealing structures, including a sealing ring body 1, an inner snap-fit ​​groove 2 is provided at the front end of the sealing ring body 1, a trapezoidal retaining ring 4 is installed inside the inner snap-fit ​​groove 2, snap-fit ​​blocks 8 are installed on both sides of the inner side of the inner snap-fit ​​groove 2, and an inner retaining ring 7 is embedded in the inner side of the inner snap-fit ​​groove 2.

[0025] The inner snap-fit ​​groove 2 is opened at the front end of the sealing ring body 1, the snap-fit ​​block 8 is set at the front end of the inner snap-fit ​​groove 2, the inner retaining ring 7 is provided with two sets embedded in the top and bottom of the inner snap-fit ​​groove 2, and the trapezoidal retaining ring 4 is embedded in the inner snap-fit ​​groove 2.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, by setting up a multi-seal structure, when in use, a trapezoidal retaining ring 4 is embedded in the inner snap groove 2 at the front end of the sealing ring body 1 to increase the support and sealing performance of the sealing ring body 1. Inner retaining rings 7 are snapped in the inner snap groove 2 from top to bottom. The snapping block 8 at the front end of the inner snap groove 2 also increases the connection of the sealing ring body 1 to increase the sealing performance of the inner snap groove 2 on the sealing ring body 1, thereby realizing the multi-seal function.

[0027] The sealing ring body 1 has a rear groove 6 at its rear end, a rear stop block 9 at its rear end, a rear stop edge 5 at its rear end, a hydrogenated nitrile rubber layer 11 inside the sealing ring body 1, a fluororubber layer 12 inside the sealing ring body 1, and a polytetrafluoroethylene layer 10 inside the sealing ring body 1.

[0028] The polytetrafluoroethylene layer 10, the hydrogenated nitrile rubber layer 11, and the fluororubber layer 12 are mixed together, and the sealing ring body 1 is provided with the polytetrafluoroethylene layer 10, the hydrogenated nitrile rubber layer 11, and the fluororubber layer 12.

[0029] Specifically, such as Figure 1 and Figure 4 As shown, by setting a material-reinforced structure, during use, a hydrogenated nitrile rubber layer 11, a fluororubber layer 12, and a polytetrafluoroethylene layer 10 are set inside the sealing ring body 1. The hydrogenated nitrile rubber layer 11 has excellent resistance to high pressure, oil, high temperature, and compression set. The fluororubber layer 12 has chemical resistance, high hardness, and is suitable for extreme high pressure and corrosive environments. The polytetrafluoroethylene layer 10 has pressure resistance and low friction. The strength of the sealing ring body 1 is increased by mixing the hydrogenated nitrile rubber layer 11, the fluororubber layer 12, and the polytetrafluoroethylene layer 10, thereby achieving the material reinforcement function.

[0030] The sealing ring body 1 has an inner connecting ring 3 inside, and an inner groove 13 is opened on the inner side of the inner connecting ring 3. An embedded rubber tube 14 is embedded in the inner groove 13.

[0031] Multiple sets of inner slots 13 are provided. The inner slots 13 are opened on the inner side of the inner connecting ring 3, and the embedded rubber tube 14 is embedded inside the inner slots 13.

[0032] Specifically, such as Figure 1 and Figure 5 As shown, by setting an inner ring sealing structure, multiple sets of inner grooves 13 are set on the inner side of the inner connecting ring 3 during use. An embedded rubber tube 14 is embedded inside the inner groove 13. When the inner connecting ring 3 inside the sealing ring body 1 is engaged, the sealing performance of the inner connecting ring 3 can be increased, thereby realizing the inner ring sealing function.

[0033] Working principle: In use, the sealing ring body 1 has an inner retaining groove 2 at its front end, with a trapezoidal retaining ring 4 embedded inside to increase the support and sealing performance of the sealing ring body 1. Inner retaining rings 7 are engaged both above and below inside the inner retaining groove 2. The retaining block 8 at the front end of the inner retaining groove 2 also increases the connection of the sealing ring body 1, thus improving the sealing performance of the inner retaining groove 2 on the sealing ring body 1. Simultaneously, the rear retaining edge 5 and rear retaining groove 6 at the rear end of the sealing ring body 1 engage the other end. Multiple sets of inner retaining grooves 13 are provided on the inner side of the inner connecting ring 3, with embedded rubber tubes 14 embedded inside the inner retaining grooves 13. When… When the inner connecting ring 3 inside the sealing ring body 1 is engaged, the sealing performance of the inner connecting ring 3 can be increased. Finally, a hydrogenated nitrile rubber layer 11, a fluororubber layer 12, and a polytetrafluoroethylene layer 10 are provided inside the sealing ring body 1. The hydrogenated nitrile rubber layer 11 has excellent resistance to high pressure, oil, high temperature, and compression set. The fluororubber layer 12 has resistance to chemical media, high hardness, and is suitable for extreme high pressure and corrosive environments. The polytetrafluoroethylene layer 10 has pressure resistance and low friction. The strength of the sealing ring body 1 is increased by mixing the hydrogenated nitrile rubber layer 11, the fluororubber layer 12, and the polytetrafluoroethylene layer 10.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high pressure service rubber seal ring with multiple seal structure, comprising a seal ring body (1), characterized in that: The front end of the sealing ring body (1) is provided with an inner snap-fit ​​groove (2), a trapezoidal retaining ring (4) is installed inside the inner snap-fit ​​groove (2), snap-fit ​​blocks (8) are installed on both sides of the inner side of the inner snap-fit ​​groove (2), and an inner retaining ring (7) is embedded in the inner side of the inner snap-fit ​​groove (2).

2. The high pressure service rubber seal ring with multiple seal structure according to claim 1, characterized in that: The inner snap-fit ​​groove (2) is opened at the front end of the sealing ring body (1), and the snap-fit ​​block (8) is set at the front end of the inner snap-fit ​​groove (2).

3. The high pressure service rubber seal ring with multiple seal structure according to claim 1, characterized in that: The inner retaining ring (7) is provided with two sets of inner top and bottom embedded in the inner snap-fit ​​groove (2), and the trapezoidal retaining ring (4) is embedded in the inner snap-fit ​​groove (2).

4. The high pressure service rubber seal ring with multiple seal structure according to claim 1, characterized in that: The sealing ring body (1) has a rear groove (6) at its rear end, a rear stop block (9) at its rear end, and a rear stop edge (5) at its rear end.

5. The high pressure service rubber seal ring with multiple seal structure according to claim 1, characterized in that: The sealing ring body (1) has a hydrogenated nitrile rubber layer (11) inside, a fluororubber layer (12) inside, and a polytetrafluoroethylene layer (10) inside.

6. The high pressure service rubber seal ring with multiple seal structure according to claim 5, characterized in that: The polytetrafluoroethylene layer (10), the hydrogenated nitrile rubber layer (11), and the fluororubber layer (12) are mixed together, and the sealing ring body (1) is provided with the polytetrafluoroethylene layer (10), the hydrogenated nitrile rubber layer (11), and the fluororubber layer (12) inside.

7. The high pressure service rubber seal ring with multiple seal structure according to claim 1, characterized in that: The sealing ring body (1) is provided with an inner connecting ring (3), and an inner groove (13) is provided on the inner side of the inner connecting ring (3), and an inlaid rubber tube (14) is embedded in the inner groove (13).

8. The high pressure service rubber seal ring with multiple seal structure according to claim 7, characterized in that: The inner slot (13) is provided in multiple sets. The inner slot (13) is opened on the inner side of the inner connecting ring (3). The embedded rubber tube (14) is embedded in the inside of the inner slot (13).

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