Expansion type sealing rubber ring

Abstract

The utility model relates to the technical field of rubber rings, and discloses an expansion type sealing rubber ring which comprises a base and a through hole, the through hole is formed in the center of the upper end face of the base, a flow guide groove is formed in the upper end face of the base on the outer side of the through hole, and a plurality of flow guide holes are formed in the lower inner wall of the flow guide groove in a circular mode. An opening is formed in the lower end face of the base on the outer side of the through hole, a cavity is formed in the upper inner wall of the opening, water swelling rubber is arranged on the upper portion in the cavity, silicon rubber is arranged in the cavity at the lower end of the water swelling rubber, and liquid collecting structures are arranged at the center of the inner side wall of the through hole and the center of the outer side wall of the base. According to the utility model, the seepage water is collected through the two liquid collecting structures, the flow guide grooves and the plurality of flow guide holes, the seepage water is absorbed by the water swelling rubber to expand when being discharged into the cavity, the water seepage part is filled, and then the water swelling rubber and the silicon rubber are conveniently replaced through the opening, so that the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber rings, in particular to an expansion type sealing rubber ring. Background Art

[0002] A sealing rubber ring is a circular rubber part used to seal between two mechanical parts. It is usually designed in a ring shape to fill or prevent liquid, gas or solid particles from leaking or penetrating between two adjacent parts. The expansion seal is a synthetic rubber that expands when exposed to water and is used in special circumstances.

[0003] During the use of existing expandable sealing rubber rings, the water-expandable rubber has a limited temperature range of application. Too high or too low temperatures may cause its performance to deteriorate, and it is also susceptible to corrosion or chemical attack. Therefore, those skilled in the art provide an expandable sealing rubber ring to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an expandable sealing rubber ring, which uses a fluororubber base to wrap the outer side of the water-swellable rubber to provide certain protection for the water-swellable rubber, and at the same time collects water through a guide groove, a guide hole, a liquid collecting groove and a leakage hole to transport the water to the water-swellable rubber, so that the water-swellable rubber absorbs moisture to expand, thereby ensuring the use characteristics of the water-swellable rubber and reducing the influence of temperature on the water-swellable rubber.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an expansion type sealing rubber ring, comprising a base and a through hole, the through hole is arranged at the center of the upper end surface of the base, a guide groove is arranged on the upper end surface of the base outside the through hole, a plurality of guide holes are arranged in a circular pattern on the lower inner wall of the guide groove, an opening is arranged on the lower end surface of the base outside the through hole, a cavity is arranged on the upper inner wall of the opening, a water-expandable rubber is arranged at the upper part of the cavity, a silicone rubber is arranged inside the cavity at the lower end of the water-expandable rubber, and a liquid collecting structure is arranged at the center of the inner wall of the through hole and the center of the outer wall of the base;

[0006] Through the above technical scheme, the seepage water is collected by two liquid collecting structures, the guide groove and multiple guide holes, and when discharged into the cavity, it is absorbed by the water-swellable rubber to cause expansion, filling the water seepage part, and then the water-swellable rubber is protected by the base to increase the service life of the water-swellable rubber. Then, the water-swellable rubber and silicone rubber can be easily replaced through the opening to reduce the cost of use.

[0007] Furthermore, the liquid collecting structure includes two liquid collecting grooves and a plurality of leakage holes, the two liquid collecting grooves are respectively arranged at the center of the inner side wall of the through hole and the center of the outer side wall of the base, and the plurality of leakage holes are respectively arranged in a circular shape at the lower part of the inner side walls of the two liquid collecting grooves, and the ends thereof respectively penetrate the two liquid collecting grooves to the center of the cavity;

[0008] Through the above technical solution, the seepage water is collected by the two liquid collecting grooves, and then discharged into the cavity through a plurality of leakage holes to be absorbed by the water-swellable rubber to cause expansion.

[0009] Furthermore, the plurality of leakage holes are respectively arranged obliquely on one side of the two liquid collecting tanks;

[0010] Through the above technical solution, the water in the two liquid collecting tanks can be easily transported to the cavity through the multiple leakage holes.

[0011] Furthermore, the lower ends of the plurality of guide holes all pass through the lower inner wall of the guide groove and are connected to the upper inner wall of the cavity;

[0012] Through the above technical solution, it is convenient to transport the water in the diversion groove to the cavity through the multiple diversion holes.

[0013] Furthermore, the base is made of fluororubber;

[0014] Through the above technical solution, the fluororubber has higher heat resistance and heat insulation, preventing abnormal temperature from affecting the use of water-expanding rubber.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the expansion type sealing rubber ring is wrapped around the outer side of the water-swellable rubber by using a fluororubber base to provide certain protection for the water-swellable rubber. At the same time, water is collected by the guide groove, the guide hole, the collecting groove and the leakage hole and transported to the water-swellable rubber, so that the water-swellable rubber absorbs water to expand, thereby ensuring the use characteristics of the water-swellable rubber and reducing the influence of temperature on the water-swellable rubber.

[0017] 2. In the utility model, fluororubber and silicone rubber can effectively fill and seal the gaps in the connection parts when pressure is generated. When the water-swellable rubber is damaged to a certain extent after long-term use, the fluororubber base and silicone rubber continue to work together to seal. After long-term use, when the base, silicone rubber and water-swellable rubber are damaged, the silicone rubber and water-swellable rubber can be taken out through the opening on the lower end face of the base, which facilitates the replacement of damaged parts and saves use costs.

[0018] 3. In the utility model, two liquid collecting grooves can prevent water from seeping out of the base or at the through-hole position, collect water, and flow the water to the water-swelling rubber through multiple leakage holes. The water-swelling rubber absorbs water and expands, so the leaking part can be supplemented in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of an expansion type sealing rubber ring proposed by the utility model;

[0020] Figure 2 This is a three-dimensional cross-sectional view of an expansion type sealing rubber ring proposed by the utility model;

[0021] Figure 3 This is a three-dimensional cross-sectional view of an expansion type sealing rubber ring base proposed by the utility model;

[0022] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0023] Legend:

[0024] 1. Base; 2. Through hole; 3. Guide groove; 4. Guide hole; 5. Liquid collecting structure; 501. Liquid collecting groove; 502. Leakage hole; 6. Opening; 7. Silicon rubber; 8. Water-swellable rubber; 9. Cavity. DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1-4The utility model provides an embodiment: an expansion type sealing rubber ring, comprising a base 1 and a through hole 2, the through hole 2 is arranged at the center of the upper end surface of the base 1, a guide groove 3 is arranged on the upper end surface of the base 1 outside the through hole 2, and a plurality of guide holes 4 are arranged in a circular shape on the lower inner wall of the guide groove 3, an opening 6 is arranged on the lower end surface of the base 1 outside the through hole 2, a cavity 9 is arranged on the inner wall above the opening 6, a water-expandable rubber 8 is arranged at the upper part of the cavity 9, and then the water-expandable rubber 8 is protected by the base 1 to improve the service life of the water-expandable rubber 8, a silicone rubber 7 is arranged inside the cavity 9 at the lower end of the water-expandable rubber 8, and then the water-expandable rubber 8 and the silicone rubber 7 are conveniently replaced through the opening 6 to reduce the use cost, a liquid collecting structure 5 is arranged at the center of the inner wall of the through hole 2 and the center of the outer wall of the base 1, and the seepage water is collected by the two liquid collecting structures 5, the guide groove 3 and the plurality of guide holes 4, and when discharged into the cavity 9, it is absorbed by the water-expandable rubber 8 to expand, and the seepage part is filled.

[0027] The liquid collecting structure 5 includes two liquid collecting grooves 501 and multiple leakage holes 502. The two liquid collecting grooves 501 are respectively arranged at the center of the inner wall of the through hole 2 and the center of the outer wall of the base 1. The multiple leakage holes 502 are respectively arranged in a circular shape at the lower part of the inner wall of the two liquid collecting grooves 501, and the ends respectively pass through the two liquid collecting grooves 501 to the center of the cavity 9. The seepage water is collected by the two liquid collecting grooves 501, and then discharged into the cavity 9 through the multiple leakage holes 502 to be absorbed by the water-swellable rubber 8 to cause expansion. The multiple leakage holes 502 are respectively inclined on one side of the two liquid collecting grooves 501, so as to facilitate the water in the two liquid collecting grooves 501 to be transported to the cavity 9 through the multiple leakage holes 502.

[0028] The lower ends of the multiple guide holes 4 all pass through the lower inner wall of the guide groove 3 to the upper inner wall of the cavity 9, which is convenient for transporting the water inside the guide groove 3 to the inside of the cavity 9 through the multiple guide holes 4. The material of the base 1 is fluororubber, which has high heat resistance and heat insulation, and prevents abnormal temperature from affecting the use of the water-expanding rubber 8.

[0029] Working principle: The base 1 made of fluororubber is wrapped around the outside of the water-swelling rubber 8 to provide certain protection for the water-swelling rubber 8. At the same time, water is collected through the guide groove 3, the guide hole 4, the collecting groove 501 and the leakage hole 502 and transported to the water-swelling rubber 8, so that the water-swelling rubber 8 absorbs water to expand, ensuring the use characteristics of the water-swelling rubber 8 and reducing the influence of temperature on the water-swelling rubber 8. The fluororubber and the silicone rubber 7 can effectively fill and seal the gaps in the connection parts when pressure is generated. After long-term use, the water-swelling rubber 8 will be damaged to a certain extent. When the base 1, silicone rubber 7 and water-swellable rubber 8 are damaged after long-term use, the silicone rubber 7 and water-swellable rubber 8 are taken out through the opening 6 on the lower end surface of the base 1, which is convenient for replacing the damaged parts and saves the use cost. The two liquid collecting grooves 501 can prevent water from seeping out of the outside of the base 1 or the position of the through hole 2, and collect water, and flow to the water-swellable rubber 8 through multiple leakage holes 502. The water-swellable rubber 8 absorbs water and expands, so the leaking part can be supplemented in time.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An expansion type sealing rubber ring, comprising a base (1) and a through hole (2), wherein the through hole (2) is arranged at the center of the upper end surface of the base (1), characterized in that: A guide groove (3) is provided on the upper end surface of the base (1) outside the through hole (2), and a plurality of guide holes (4) are arranged in a circular pattern on the lower inner wall of the guide groove (3). An opening (6) is provided on the lower end surface of the base (1) outside the through hole (2), and a cavity (9) is provided on the upper inner wall of the opening (6). Water-swellable rubber (8) is provided at the upper part of the cavity (9), and silicone rubber (7) is provided inside the cavity (9) at the lower end of the water-swellable rubber (8). A liquid collecting structure (5) is provided at the center of the inner wall of the through hole (2) and at the center of the outer wall of the base (1).

2. The expansion type sealing rubber ring according to claim 1, characterized in that: The liquid collecting structure (5) comprises two liquid collecting grooves (501) and a plurality of leakage holes (502); the two liquid collecting grooves (501) are respectively arranged at the center of the inner wall of the through hole (2) and the center of the outer wall of the base (1); the plurality of leakage holes (502) are respectively arranged in a circular shape at the lower part of the inner wall of the two liquid collecting grooves (501), and the ends thereof respectively penetrate the two liquid collecting grooves (501) and are connected to the inner center of the cavity (9).

3. The expansion type sealing rubber ring according to claim 2, characterized in that: The plurality of leakage holes (502) are respectively arranged obliquely on one side of the two liquid collecting tanks (501).

4. The expansion type sealing rubber ring according to claim 1, characterized in that: The lower ends of the plurality of guide holes (4) all penetrate the lower inner wall of the guide groove (3) and are connected to the upper inner wall of the cavity (9).

5. The expansion type sealing rubber ring according to claim 1, characterized in that: The base (1) is made of fluororubber.

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