High-strength high-temperature-resistant rubber sealing element

Abstract

The utility model discloses a high-strength high-temperature-resistant rubber sealing element which comprises a sealing ring, a bayonet, a shaft hole and a supporting sealing structure. After the sealing ring is installed and a shaft is in butt joint with the interior of the shaft hole, the supporting ring can support the shaft so as to ensure that the shaft is high in stability and good in supporting performance after being installed in the shaft hole, the stability of the shaft after being installed in the shaft hole is ensured, then the threaded pressing ring is rotated, and due to the fact that the threaded pressing ring is in threaded connection with the connecting screw rod, when the threaded pressing ring is rotated, the shaft is not damaged. The threaded pressing ring can push and press the pressing plate so as to extrude the sealing ring, the sealing ring is stressed to deform and then is pressed on the surface of the shaft, the sealing performance is improved, when the sealing ring is pushed and pressed by the pressing plate, under the action of the notch, the port part of the sealing ring can contract and is tightly pressed on the shaft, and the sealing capacity is further improved.

Description

Technical Field

[0001] This utility model relates to the field of rubber sealing technology, specifically a high-strength, high-temperature resistant rubber sealing component. Background Technology

[0002] Natural rubber has high elasticity and slight plasticity at room temperature, excellent mechanical strength, low hysteresis loss, and low heat generation during repeated deformation, thus it also has good flexural resistance. Furthermore, as a non-polar rubber, it has good electrical insulation properties.

[0003] Existing patent CN209245235U discloses a rubber seal, relating to the field of pipeline sealing technology. Its key technical features include a pipe body with annular steel ring grooves at both ends. The pipe body is circumferentially spaced with axially extending outward-protruding ribs, and the steel ring grooves are circumferentially spaced with axially extending groove-protruding ribs. The outward-protruding ribs and groove-protruding ribs are staggered circumferentially.

[0004] The aforementioned patents or existing rubber seals have the following problems:

[0005] Existing rubber seals rely solely on the sealing ring to support the shaft, which provides only moderate support and may cause instability during shaft installation. Utility Model Content

[0006] The purpose of this invention is to provide a high-strength, high-temperature resistant rubber seal to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength, high-temperature resistant rubber seal, comprising a sealing ring, a snap-fit ​​on the sealing ring, a shaft hole in the sealing ring, a supporting sealing structure in the sealing ring, the supporting sealing structure comprising a supporting ring, a supporting ring in the sealing ring, a connecting screw on the supporting ring, a threaded pressure ring connected to the connecting screw, a placement groove on the edge of the sealing ring, a pressure plate in the placement groove, and the pressure plate engaging with the connecting screw.

[0008] Preferably, the support ring has a circumferential cross-section in the shape of an "U".

[0009] Preferably, a support plate is provided at the inner corner of the support ring.

[0010] Preferably, the support ring is provided with a reinforcing plate, which is supported in the support ring.

[0011] Preferably, the edge of the pressure plate is beveled.

[0012] Preferably, the sealing ring has a notch.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] After the sealing ring is installed, when the shaft is aligned with the shaft hole, the support ring provides support to the shaft, ensuring high stability and good support after the shaft is installed in the shaft hole. Then, the threaded pressure ring is rotated. Since the threaded pressure ring is threadedly connected to the connecting screw, it pushes the pressure plate when the threaded pressure ring is rotated, thereby squeezing the sealing ring. The sealing ring deforms under the force and then presses against the shaft surface, improving the sealing performance. When the sealing ring is pushed by the pressure plate, the end of the sealing ring will contract under the action of the notch, pressing tightly against the shaft, further improving the sealing ability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view structural diagram of the present utility model;

[0017] Figure 3 This is a side view sectional structural diagram of the present invention.

[0018] In the diagram: sealing ring-1, bayonet-2, shaft hole-3, supporting sealing structure-4, support ring-41, connecting screw-42, placement groove-43, threaded pressure ring-44, pressure plate-45, support plate-46, reinforcing plate-47, notch-48. Detailed Implementation

[0019] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0020] Please see Figure 1 and Figure 2 This utility model provides a high-strength, high-temperature resistant rubber seal, including a sealing ring 1. The sealing ring 1 is made of a high-strength, high-temperature resistant material, such as fluororubber. The sealing ring 1 is provided with a snap 2, which is used for the installation of the sealing ring 1. The sealing ring 1 is provided with a shaft hole 3, which is used for the installation of a shaft. The shaft hole 3 can rotate in the shaft hole 3. The sealing ring 1 is provided with a supporting sealing structure 4.

[0021] Please see Figure 2 and Figure 3This utility model provides a high-strength, high-temperature resistant rubber seal. The supporting sealing structure 4 includes a supporting ring 41, which is fixed in the sealing ring 1. The cross-section of the supporting ring 41 is "U"-shaped, providing a strong supporting effect and high support. Support plates 46 are provided at the inner corners of the supporting ring 41 to prevent deformation of the supporting ring 41 under stress. Reinforcing plates 47 are also provided in the supporting ring 41, providing better support capabilities.

[0022] The support ring 41 is fixed with a connecting screw 42, and the connecting screw 42 is threadedly connected with a threaded pressure ring 44.

[0023] In this utility model, the sealing ring 1 has a placement groove 43 on its side, a pressure plate 45 is placed in the placement groove 43, and the pressure plate 45 is connected to the connecting screw 42. The edge of the pressure plate 45 is inclined, and the sealing ring 1 has a notch 48.

[0024] Specifically, after the sealing ring 1 is installed, when the shaft is connected to the shaft hole 3, the support ring 41 will provide support for the shaft to ensure high stability and good support after the shaft is installed in the shaft hole 3. Then, the threaded pressure ring 44 is rotated. Since the threaded pressure ring 44 is threadedly connected to the connecting screw 42, when the threaded pressure ring 44 is rotated, the threaded pressure ring 44 will push the pressure plate 45, thereby squeezing the sealing ring 1. The sealing ring 1 deforms under the force and then presses against the shaft surface, improving the sealing performance. When the sealing ring 1 is pushed by the pressure plate 45, under the action of the notch 48, the end part of the sealing ring 1 will shrink and press tightly against the shaft, further improving the sealing ability.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength, high-temperature resistant rubber seal, comprising a sealing ring (1), wherein the sealing ring (1) is provided with a snap-fit ​​(2), and a shaft hole (3) is provided in the sealing ring (1), characterized in that: It also includes a support sealing structure (4), in which the sealing ring (1) is provided with the support sealing structure (4), the support sealing structure (4) includes a support ring (41), in which the sealing ring (1) is provided with the support ring (41), a connecting screw (42) is provided on the support ring (41), a threaded pressure ring (44) is connected on the connecting screw (42), a placement groove (43) is provided on the edge of the sealing ring (1), a pressure plate (45) is provided in the placement groove (43), and the pressure plate (45) is connected to the connecting screw (42).

2. The high-strength, high-temperature resistant rubber seal according to claim 1, characterized in that: The support ring (41) has a circumferential cross-section in the shape of an "U".

3. The high-strength, high-temperature resistant rubber seal according to claim 2, characterized in that: A support plate (46) is provided at the inner corner of the support ring (41).

4. The high-strength, high-temperature resistant rubber seal according to claim 3, characterized in that: A reinforcing plate (47) is provided in the support ring (41), and the reinforcing plate (47) is supported in the support ring (41).

5. The high-strength, high-temperature resistant rubber seal according to claim 1, characterized in that: The edge of the pressure plate (45) is beveled.

6. The high-strength, high-temperature resistant rubber seal according to claim 1, characterized in that: The sealing ring (1) has a notch (48).

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