All-round rubber sealing ring for pipeline repair

Abstract

The utility model relates to the technical field of sealing rings, in particular to a full-circumference rubber sealing ring for pipeline repair, which comprises a sealing ring, the end face of the sealing ring is of a circular structure, and a sealing protrusion integrally formed with the sealing ring is arranged in the sealing ring and is of a circular ring structure. The two ends of the inner wall face of the sealing ring are each provided with an integrally-formed abutting protruding block, the sealing ring comprises a base layer, a durable layer and a waterproof layer, the sealing protrusions, the abutting protruding blocks and the base layer are of an integrally-formed structure, the base layer is covered with the durable layer, the durable layer and the base layer are bonded through resin glue, and the durable layer is covered with the waterproof layer. The rubber sealing ring of the drinking water pipeline connector joint can be tightly attached to a pipeline, the inner diameter of the rubber ring is provided with a plurality of sealing protruding stems, multi-layer leakage-proof sealing is formed after assembly, the sealing ring is wide in covering range, and therefore only a few sealing rings are needed to cover the whole range, and the drinking water pipeline connector joint is very economical, capable of reducing stock and reducing production cost. And various use requirements can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a full-circumference rubber sealing ring used for pipeline repair. Background Art

[0002] A sealing ring is an annular cover composed of one or more parts, which is fixed on a ring or gasket on the bearing and contacts or forms a narrow labyrinth gap with another ring or gasket, thereby preventing liquid leakage and foreign object intrusion.

[0003] According to the type, sealing rings can be divided into O-type sealing ring series, Y-type sealing rings, V-type sealing rings, YX-type sealing rings for holes, and YX-type retaining rings for holes.

[0004] According to the material, sealing rings can be divided into silicone rubber series, fluororubber series products, polytetrafluoroethylene series products, various special-shaped parts, metal rubber sealing rings, etc.

[0005] The drinking water we drink more commonly is tap water. Tap water refers to water that is purified and disinfected by a tap water treatment plant and meets the corresponding standards for use in people's lives and production.

[0006] Domestic water is mainly drawn from rivers, lakes, groundwater and surface water through the water plant's water intake pump station. The water plant processes the water in accordance with the "National Sanitary Standards for Drinking Water" through sedimentation, disinfection, filtration and other process flows, and finally delivers it to various users through distribution pump stations.

[0007] Tap water is mainly transported through drinking water pipes, especially some outdoor drinking water supplies, most of which are transported through multiple sections of plastic or rubber pipes, and two adjacent pipes need to be sealed and connected through pipe connectors. However, since most sealing ring structures are only an O-ring package structure, after docking through the connector, if the connection position is bent or pulled, leakage is very likely to occur. Utility Model Content

[0008] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes a full-circle rubber sealing ring for pipeline repair.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A full-circle rubber sealing ring designed for pipeline repair comprises a sealing ring, the end face of which is a circular structure, and the interior of the sealing ring is provided with a sealing protrusion integrally formed therewith, the sealing protrusion is a circular ring structure, both ends of the inner wall surface of the sealing ring are provided with integrally formed supporting protrusions, the sealing ring comprises a base layer, a durable layer and a waterproof layer, the sealing protrusion and the supporting protrusion are both integrally formed structures with the base layer, the durable layer covers the base layer, and the durable layer is bonded to the base layer by resin glue, the waterproof layer covers the durable layer, and the waterproof layer is attached to the outer wall surface of the durable layer in the form of a coating.

[0011] In detail, the number of the sealing protrusions is several, and two adjacent sealing protrusions are equidistantly distributed.

[0012] In detail, there are eight abutting protrusions distributed on a single vertical surface of the sealing ring, and the plurality of abutting protrusions are evenly distributed in a ring shape with respect to each other, and the abutting protrusions are cylindrical structures.

[0013] In detail, the sealing protrusion, the contacting protrusion and the base layer are all made of rubber material.

[0014] In detail, the durable layer is made of polyurethane film material. The mechanical strength of polyurethane film is large. It has the greatest tensile strength than other films. Since its strength is equal to 5-10 times that of polyethylene, an extremely thin film of 12 microns can also be used. In addition, it has the advantages of strong strength and impact resistance, good heat resistance and cold resistance, a melting point of 260°C, and a softening point of 230°C-240°C. Even if a biaxial stretching process is adopted, its heat shrinkage rate is still very small under high temperature conditions. This film has extremely excellent heat resistance and dimensional stability. It is not affected by long-term heating at high temperature or at low temperature. It has good oil resistance and chemical resistance, is not easy to dissolve, has good acid corrosion resistance, and can resist the erosion of organic solvents and greases, but is easy to deteriorate when in contact with strong alkali. The permeability of water vapor, water and gas is extremely small. Therefore, it has good moisture resistance and waterproofness. In the two extreme states of excessive dryness and excessive humidity, it still has no effect on the strength of the film. Among various films, it has the best odor permeability.

[0015] In detail, the waterproof layer is sprayed with acrylic coating material. Acrylic coating is a one-component self-drying weather-resistant anti-corrosion coating prepared on the basis of traditional acrylic resin root by adding long-life chlorosulfonated polyethylene rubber, weather-resistant pigments and fillers, weather-resistant additives and other materials. The characteristics of acrylic coating are dustproof, wear-resistant, pressure-resistant, and water-proof. The glossiness is divided into matte, bright, and semi-matte. It has a good anti-slip effect, is not expensive, is easy to clean, and is easy to maintain.

[0016] The full-circle rubber sealing ring for pipeline repair proposed by the utility model has the beneficial effects of: using a rubber sealing ring of appropriate thickness and volume, covering a wide area, combining the sealing ring with the sleeve at an optimal angle, and enhancing the stability of the sealing ring on the pipeline;

[0017] The working pressure of adapters, reducers, plug-in connectors and end caps that can be used for all types of pipes is equivalent to the working pressure of cast iron pipes, asbestos cement pipes, PVC pipes or other pipes using the connectors, and is as durable as the pipes;

[0018] The rubber sealing ring of the drinking water pipe connector can fit the pipe tightly. There are multiple sealing protrusions on the inner diameter of the rubber ring. After assembly, a multi-layer leak-proof seal is formed. The sealing ring has a wide coverage range, so only a few sealing rings are needed to cover the entire range. It is very economical, which can reduce inventory and meet various usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic cross-sectional diagram of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the distribution of the abutting protrusions of the utility model;

[0022] Figure 4 It is a schematic diagram of the sealing ring structure of the utility model.

[0023] In the figure: 10, sealing ring; 11, sealing protrusion; 12, pressing protrusion; 13, base layer; 14, durable layer; 15, waterproof layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-4A full-circle rubber sealing ring for pipe repair includes a sealing ring 10, the end face of the sealing ring 10 is a circular structure, and a sealing protrusion 11 integrally formed therewith is arranged inside the sealing ring 10, the sealing protrusion 11 is a circular ring structure, and both ends of the inner wall surface of the sealing ring 10 are provided with integrally formed supporting protrusions 12, the sealing ring 10 includes a base layer 13, a durable layer 14 and a waterproof layer 15, the sealing protrusion 11 and the supporting protrusion 12 are both integrally formed structures with the base layer 13, the durable layer 14 covers the base layer 13, and the durable layer 14 is bonded to the base layer 13 by resin glue, the waterproof layer 15 covers the durable layer 14, and the waterproof layer 15 is attached to the outer wall surface of the durable layer 14 in the form of coating.

[0026] It should be further explained that there are a plurality of sealing protrusions 11 , and two adjacent sealing protrusions 11 are equidistantly distributed.

[0027] It should be further explained that there are eight pressing protrusions 12 distributed on a single vertical surface of the sealing ring 10 , and the multiple pressing protrusions 12 are evenly distributed in a ring shape with respect to each other, and the pressing protrusions 12 are cylindrical structures.

[0028] The rubber sealing ring with appropriate thickness and volume is used to cover a wide area. The sealing ring and the sleeve are combined at the best angle to enhance the stability of the sealing ring on the pipeline.

[0029] The working pressure of adapters, reducers, plug-in connectors and end caps that can be used for all types of pipes is equivalent to the working pressure of cast iron pipes, asbestos cement pipes, PVC pipes or other pipes using the connectors, and is as durable as the pipes;

[0030] The rubber sealing ring of the drinking water pipe connector can fit the pipe tightly. There are multiple sealing protrusions on the inner diameter of the rubber ring. After assembly, a multi-layer leak-proof seal is formed. The sealing ring has a wide coverage range, so only a few sealing rings are needed to cover the entire range. It is very economical, which can reduce inventory and meet various usage needs.

[0031] It should be further explained that the sealing protrusion 11, the pressing protrusion 12 and the base layer 13 are all made of rubber material, which has excellent storage and working properties, is waterproof, and can resist acids, alkalis, most hydrocarbon (fat) aliphatic and other chemicals.

[0032] It should be further explained that the durable layer 14 is made of polyurethane film material. The mechanical strength of polyurethane film is large. It has the greatest tensile strength than other films. Since its strength is equal to 5-10 times that of polyethylene, an extremely thin film of 12 microns can also be used. In addition, it has the advantages of strong strength and impact resistance, good heat resistance and cold resistance, a melting point of 260°C, and a softening point of 230°C-240°C. Even if a biaxial stretching process is adopted, its heat shrinkage rate is still very small under high temperature conditions. This film has extremely excellent heat resistance and dimensional stability. It is not affected by long-term heating at high temperature or at low temperature. It has good oil resistance and chemical resistance, is not easy to dissolve, has good acid corrosion resistance, and can resist the erosion of organic solvents and greases, but is easy to deteriorate when in contact with strong alkali. The water vapor, water and gas permeability are extremely small. Therefore, it has good moisture resistance and waterproofness. In the two extreme states of excessive dryness and excessive humidity, the strength of the film is still not affected. Among various films, it has the best odor permeability.

[0033] It should be further explained that the waterproof layer 15 is sprayed with acrylic paint material. Acrylic paint is a one-component self-drying weather-resistant anti-corrosion paint prepared on the basis of traditional acrylic resin root by adding long-life chlorosulfonated polyethylene rubber, weather-resistant pigments and fillers, weather-resistant additives and other materials. The characteristics of acrylic paint are dustproof, wear-resistant, pressure-resistant, and water-proof. The glossiness is divided into matte, bright, and semi-matte. It has a good anti-slip effect, is not expensive, is easy to clean, and is easy to maintain.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A full-circumference rubber sealing ring for pipeline repair, comprising a sealing ring (10), characterized in that: The end face of the sealing ring (10) is a circular structure, and a sealing protrusion (11) is provided inside the sealing ring (10) and is integrally formed therewith. The sealing protrusion (11) is a circular ring structure. Both ends of the inner wall surface of the sealing ring (10) are provided with integrally formed abutting protrusions (12). The sealing ring (10) comprises a base layer (13), a durable layer (14) and a waterproof layer (15). The sealing protrusion (11) and the abutting protrusion (12) are integrally formed structures with the base layer (13). The durable layer (14) covers the base layer (13), and the durable layer (14) is bonded to the base layer (13) by resin glue. The waterproof layer (15) covers the durable layer (14), and the waterproof layer (15) is attached to the outer wall surface of the durable layer (14) in the form of a coating.

2. The full-circumference rubber sealing ring for pipeline repair according to claim 1 is characterized in that: The number of the sealing protrusions (11) is several, and two adjacent sealing protrusions (11) are equidistantly distributed.

3. The full-circumference rubber sealing ring for pipeline repair according to claim 1 is characterized in that: There are eight abutting protrusions (12) distributed on a single vertical surface of the sealing ring (10), and the plurality of abutting protrusions (12) are evenly distributed in a ring shape relative to each other, and the abutting protrusions (12) are cylindrical structures.

4. The full-circumference rubber sealing ring for pipeline repair according to claim 1 is characterized in that: The sealing protrusion (11), the contacting protrusion (12) and the base layer (13) are all made of rubber material.

5. The full-circumference rubber sealing ring for pipeline repair according to claim 1 is characterized in that: The durable layer (14) is made of polyurethane film material.

6. The full-circumference rubber sealing ring for pipeline repair according to claim 1 is characterized in that: The waterproof layer (15) is formed by spraying acrylic paint material.

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