Flat rubber sealing gasket for pipeline repair

Abstract

The utility model relates to the technical field of sealing gaskets, in particular to a flat rubber sealing gasket for pipeline repair, which comprises a sealing gasket, the side wall surface of the sealing gasket is of a plane structure, the sealing gasket is in a circular ring shape, grids are arranged on the inner ring wall of the sealing gasket, and the grids are crisscrossed along the inner ring wall of the sealing gasket at right angles. A hollow area of the grating and the inner ring wall of the sealing gasket form a square groove type structure, an annular groove is formed in the outer ring wall of the sealing gasket, a limiting protruding block is arranged on the side wall of one side in the annular groove, the limiting protruding block is of a hemispherical structure, and the sealing gasket comprises a wear-resisting layer, a waterproof layer and a base layer. The surface of the base layer is coated with a waterproof layer, and the outer wall surface of the waterproof layer is bonded with a wear-resistant layer through a resin adhesive. The FCC flat plate sealing gasket for repairing the drinking water pipeline is in a flat plate shape, one face of the FCC flat plate sealing gasket is a sealing face, latticed sealing protruding strips are arranged on the sealing face, and a square sealing groove is formed in each grid.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing pads, in particular to a flat rubber sealing pad used for pipeline repair. Background Art

[0002] Drinking water is necessary for the human body, and it can help maintain the body's health and normal physiological functions. Generally, drinking water should be clean, non-toxic, harmless, and free of any harmful chemicals or microorganisms.

[0003] To ensure the safety and health of drinking water, water should be selected from a reliable water source and filtered and disinfected before drinking. In addition, proper storage and protection of drinking water is also very important.

[0004] When drinking water and other water are transported, the pipes used are also specially processed to avoid contamination of drinking water due to deterioration inside the pipes during long-term use.

[0005] At present, a large number of drinking water pipes are used to supply drinking water in our lives. These drinking water pipes may leak or break due to improper maintenance, geological subsidence, external force impact and other reasons. When the degree of damage is minor, pipe pluggers are usually used to seal and pack the leaking or damaged parts of the pipes.

[0006] The structure of the existing leak stopper includes an installed shell and a sealing gasket arranged on the shell. When installed, the sealing gaskets on the two shells are oppositely pressed against each other to improve the sealing performance. However, since the sealing surface of the sealing gasket is a smooth surface, the sealing effect is not ideal. Utility Model Content

[0007] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes a flat rubber sealing pad for pipeline repair.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A flat rubber sealing gasket designed for pipeline repair comprises a sealing gasket, wherein the side wall surface of the sealing gasket is a plane structure, and the sealing gasket is annular, a grille is arranged on the inner ring wall of the sealing gasket, and the grille is crisscrossed at right angles along the inner ring wall of the sealing gasket, a hollow area of ​​the grille forms a square groove structure with the inner ring wall of the sealing gasket, an annular groove is arranged on the outer ring wall of the sealing gasket, a limiting protrusion is arranged on the side wall on one side of the groove of the annular groove, and the limiting protrusion is a hemispherical structure, the sealing gasket comprises a wear-resistant layer, a waterproof layer and a base layer, the surface of the base layer is coated with a waterproof layer, and the outer wall surface of the waterproof layer is bonded with a wear-resistant layer by resin glue.

[0010] FCC flat gaskets for drinking water pipe repair can provide a fast and economical repair method for various damages such as breaks, perforations, cracks, etc. of cast iron pipes, steel pipes, cement pipes, copper pipes, aluminum pipes, plastic pipes, fiberglass pipes, etc. The surface of the gasket has many square fine grids, which can be applied to rough, porous and non-standard pipe surfaces to form an effective seal around the entire circumference of the pipe.

[0011] In detail, the grille and the sealing gasket are an integrated structure, and the structural composition of the grille is the same as the structural composition of the sealing gasket.

[0012] In detail, the inner glue formed by the side wall of the inner wall of the annular groove and the bottom end can be a right angle or a rounded angle.

[0013] In detail, the limiting protrusions are bonded to the inner side wall of the annular groove by resin glue, and the number of the limiting protrusions is at least twelve and they are evenly distributed.

[0014] In detail, the wear-resistant layer is made of polyvinyl chloride film material. Polyvinyl chloride is very dense, so it is very hard and resists impact deformation very well compared to other plastics, has very good tensile strength, and is highly resistant to chemicals and alkalis.

[0015] In detail, the waterproof layer is made of modified polyethylene waterproof coating material.

[0016] In detail, the base layer is made of rubber material.

[0017] The flat rubber sealing pad for pipeline repair proposed by the utility model has the following beneficial effects:

[0018] 1. The FCC flat gasket used for repairing drinking water pipes is in the shape of a flat plate, one side of which is a sealing surface, on which a grid-shaped sealing convex strip is arranged, and each grid has a square sealing groove;

[0019] A clamp groove for placing the clamp is arranged on the opposite side of the sealing surface. The bottom of the clamp groove is flat or convex. When the pipeline leaks or is damaged, the sealing surface of the flat gasket is wrapped around the leaking or damaged part of the pipeline, and then the clamp is placed in the clamp groove and the clamp is shrunk. After the clamp is in place, many square sealing grooves and grid-shaped sealing strips on the sealing surface form many barriers to prevent water leakage between the sealing surface of the flat gasket and the surface of the pipeline, thereby achieving a good sealing effect.

[0020] It is convenient, quick and cost-effective to repair leaking or damaged pipes. It has the characteristics of high temperature resistance, high pressure resistance, corrosion resistance and long service life. It is labor-saving, flexible and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic cross-sectional diagram of the overall structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the distribution of the limiting protrusions of the utility model;

[0024] Figure 4 It is an enlarged schematic diagram of point a of the utility model;

[0025] Figure 5 It is a schematic diagram of the sealing ring structure of the utility model.

[0026] In the figure: 10, sealing gasket; 11, grille; 12, annular groove; 13, limiting protrusion; 20 wear-resistant layer; 21, waterproof layer; 22, base layer. DETAILED DESCRIPTION

[0027] 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.

[0028] Reference Figure 1-5 A flat rubber gasket for pipeline repair includes a gasket 10, the side wall of the gasket 10 is a plane structure, and the gasket 10 is annular, a grille 11 is arranged on the inner ring wall of the gasket 10, and the grille 11 is crisscrossed at right angles along the inner ring wall of the gasket 10, and the hollow area of ​​the grille 11 forms a square groove structure with the inner ring wall of the gasket 10, an annular groove 12 is arranged on the outer ring wall of the gasket 10, a limiting protrusion 13 is arranged on the side wall of one side of the groove of the annular groove 12, and the limiting protrusion 13 is a hemispherical structure, the gasket 10 includes a wear-resistant layer 20, a waterproof layer 21 and a base layer 22, the surface of the base layer 22 is coated with the waterproof layer 21, and the outer wall surface of the waterproof layer 21 is bonded with the wear-resistant layer 20 by resin glue.

[0029] It should be further explained that the grille 11 and the sealing gasket 10 are an integrated structure, and the structural composition of the grille 11 is the same as the structural composition of the sealing gasket 10 .

[0030] It should be further explained that the inner glue formed by the side wall and the bottom end of the inner wall of the annular groove 12 can be a right angle or a rounded angle.

[0031] It should be further explained that the limiting protrusion 13 is bonded to the side wall of one side of the annular groove 12 by resin glue, the number of the limiting protrusions 13 is at least twelve, and they are evenly distributed. The limiting protrusion 13 is mainly set when the annular groove 12 is used as a clamp groove. After the clamp is inserted into the annular groove 12 and stretched and laid flat, the limiting protrusion 13 can be used for limiting positioning, which is convenient for stabilizing the position of the clamp during installation.

[0032] The FCC flat gasket used for repairing drinking water pipes is in the shape of a flat plate, one side of which is a sealing surface, and a grid-shaped sealing convex strip is arranged on the sealing surface, and each grid is a square sealing groove;

[0033] A clamp groove for placing the clamp is arranged on the opposite side of the sealing surface. The bottom of the clamp groove is flat or convex. When the pipeline leaks or is damaged, the sealing surface of the flat gasket is wrapped around the leaking or damaged part of the pipeline, and then the clamp is placed in the clamp groove and the clamp is shrunk. After the clamp is in place, many square sealing grooves and grid-shaped sealing strips on the sealing surface form many barriers to prevent water leakage between the sealing surface of the flat gasket and the surface of the pipeline, thereby achieving a good sealing effect.

[0034] It is convenient, quick and cost-effective to repair leaking or damaged pipes. It has the characteristics of high temperature resistance, high pressure resistance, corrosion resistance and long service life. It is labor-saving, flexible and reliable.

[0035] It should be further explained that the wear-resistant layer 20 is made of polyvinyl chloride film material. Polyvinyl chloride is very dense, so it is very hard and resists impact deformation very well compared to other plastics, has very good tensile strength, and is highly resistant to chemicals and alkalis.

[0036] It should be further explained that the waterproof layer 21 is made of a modified polyethylene waterproof coating material, which can provide the base layer 22 with water resistance and water vapor erosion resistance.

[0037] It should be further explained that the base layer 22 is made of rubber material, has a certain flexibility, and can assist in deformation and sealing of the pipeline leakage location.

[0038] Working method: FCC flat gaskets for drinking water pipe repair can provide a fast and economical repair method for various damages such as breaks, perforations, cracks, etc. of cast iron pipes, steel pipes, cement pipes, copper pipes, aluminum pipes, plastic pipes, fiberglass pipes, etc. The surface of the gasket has many square fine grids, which can be applied to rough, porous and non-standard pipe surfaces to form an effective seal around the entire circumference of the pipe.

[0039] When assembling the FCC flat gasket for repairing drinking water pipes, the outer shell steel belt is made of stainless steel, which has the characteristics of corrosion resistance, high toughness and high strength. The locking piece firmly connects the stainless steel belt and is equipped with mutually supporting guide plates to allow the maximum torque of the applicable bolts. The locking piece design includes a self-tightening fastener with no loose or moving parts, which can be easily installed in adverse environments, saving time.

[0040] Fcc flat gasket for repairing drinking water pipes. The stainless steel on the gasket is made of thicker stainless steel plate, which can be bent into different arcs according to the size of the water pipe, close to the outer wall of the pipe, and more firmly. According to the different pressures of the water pipe, the gasket can be selected with or without stainless steel plate.

[0041] The strength of the FCC flat gasket used for drinking water pipe repair is above 6.8MPa, the compression permanent deformation is 20%, and its maximum working pressure can reach 0.34MPa. The flexible full-circle repair clamp is composed of one or more sections of stainless steel strips, which are firmly connected to the cast locking parts. The repair clamp is installed on the pipe by bolts or screws.

[0042] 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 flat rubber sealing pad for pipeline repair, comprising a sealing pad (10), characterized in that: The side wall surface of the sealing gasket (10) is a plane structure, and the sealing gasket (10) is annular. A grille (11) is arranged on the inner ring wall of the sealing gasket (10), and the grille (11) is crisscrossed at right angles along the inner ring wall of the sealing gasket (10). The hollow area of ​​the grille (11) and the inner ring wall of the sealing gasket (10) form a square groove structure. An annular groove (12) is arranged on the outer ring wall of the sealing gasket (10). A limiting protrusion (13) is arranged on the side wall of one side of the groove of the annular groove (12), and the limiting protrusion (13) is a hemispherical structure. The sealing gasket (10) comprises a wear-resistant layer (20), a waterproof layer (21) and a base layer (22). The surface of the base layer (22) is coated with the waterproof layer (21), and the outer wall surface of the waterproof layer (21) is bonded with the wear-resistant layer (20) by resin glue.

2. The flat rubber sealing pad for pipeline repair according to claim 1, characterized in that: The grille (11) and the sealing gasket (10) are an integrated structure, and the structural composition of the grille (11) is the same as the structural composition of the sealing gasket (10).

3. The flat rubber sealing pad for pipeline repair according to claim 1 is characterized in that: The inner glue formed by the side wall and the bottom end of the inner wall of the annular groove (12) can be a right angle or a rounded angle.

4. The flat rubber sealing pad for pipeline repair according to claim 1 is characterized in that: The limiting protrusions (13) are bonded to a side wall of the annular groove (12) by resin glue, and the number of the limiting protrusions (13) is at least twelve and they are evenly distributed.

5. The flat rubber sealing pad for pipeline repair according to claim 1 is characterized in that: The wear-resistant layer (20) is made of polyvinyl chloride film material.

6. The flat rubber sealing pad for pipeline repair according to claim 1, characterized in that: The waterproof layer (21) is made of modified polyethylene waterproof coating material.

7. The flat rubber sealing pad for pipeline repair according to claim 1, characterized in that: The base layer (22) is made of rubber material.

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