Porous ethylene propylene diene monomer sealing gasket

Abstract

The utility model discloses a porous ethylene propylene diene monomer sealing gasket, which relates to the technical field of ethylene propylene diene monomer sealing gaskets and comprises a sealing gasket main body, grooves are uniformly distributed on the lower surface of the sealing gasket main body, and the inner surfaces of the grooves and the lower surface of the sealing gasket main body are fixedly connected with the same adhesive gasket. And drainage grooves are evenly formed in the left side and the right side of the surface of the sealing gasket body, the drainage grooves are located in the left side and the right side of the sealing gasket body and are symmetrically distributed, and the sinking depth of the drainage grooves ranges from 2 mm to 3 mm. Compared with the existing common porous ethylene propylene diene monomer sealing gasket, the porous ethylene propylene diene monomer sealing gasket has the advantages that the sealing gasket main body is firmly bonded with the corresponding concrete, and a water seepage channel between the sealing gasket main body and the concrete is sealed, so that the leakage of water is prevented; and the drainage grooves can guide water flow outside the sealing gasket body to the two sides, and excessive accumulation of the water flow is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of EPDM rubber sealing gaskets, specifically to porous EPDM rubber sealing gaskets. Background Technology

[0002] In water conservancy and hydropower projects, tunnels and subways, civil defense works, underground buildings and other projects, water-stopping mechanisms are commonly used to stop water leakage in the gaps. In tunnel and bridge construction, shield strips are generally used to stop water leakage in the shield segments. With social development, the application of shield strips is becoming more and more widespread. Therefore, the demand for self-adhesive EPDM gaskets is increasing.

[0003] Existing EPDM rubber sealing gaskets are generally installed and bonded by spraying adhesive or using rubber strips. However, these two methods are prone to creating cracks between the shield strip and the concrete, leading to water seepage.

[0004] Therefore, in view of this, we studied and improved the existing structure to address its shortcomings and proposed a porous EPDM rubber sealing gasket. Utility Model Content

[0005] The purpose of this invention is to provide a porous EPDM rubber sealing gasket to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a porous EPDM rubber sealing gasket, comprising a sealing gasket body, wherein grooves are evenly distributed on the lower surface of the sealing gasket body, and the same adhesive pad is fixedly connected to the inner surface of the grooves and the lower surface of the sealing gasket body; drainage grooves are evenly distributed on the left and right sides of the surface of the sealing gasket body, and the drainage grooves are symmetrically distributed on the left and right sides of the sealing gasket body, and the sinking depth of the drainage grooves is 2mm-3mm.

[0007] Preferably, the adhesive pad is a butyl rubber self-adhesive layer, and a release film is adhered to the lower surface of the adhesive pad.

[0008] Preferably, a main hole is provided in the middle of the front side of the surface of the sealing gasket body, and three main holes are provided in a horizontal distribution in the middle of the front side of the sealing gasket body.

[0009] Preferably, the front surface of the sealing gasket body has a secondary hole located above and below the main hole, and two secondary holes are provided on both the upper and lower sides of the main hole.

[0010] Preferably, an expansion sealing strip is fixedly connected to the inner wall of the upper surface of the sealing gasket body, and the expansion sealing strip is made of rubber of an expansion material.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the setting of adhesive pad and drainage channel, allows the user to remove the isolation film from the surface of the adhesive pad when installing the sealing gasket body. Then, the sealing gasket body is connected to the pipe fitting through the adhesive pad, so that the sealing gasket body is firmly bonded to the corresponding concrete, sealing the water seepage channel between the sealing gasket body and the concrete, thereby preventing the leakage of water and improving the overall water-stopping effect of the device. The drainage channel can guide the water flow outside the sealing gasket body to both sides to prevent water accumulation.

[0013] 2. By setting the main hole and the secondary hole, the main hole and the secondary hole can buffer the compression of the sealing gasket body, and when the sealing gasket body is partially damaged, the other parts will not be affected. This makes the sealing gasket body interconnected yet independent, improving the water-proof effect of the sealing gasket body and making the sealing gasket body more stable in use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the sealing gasket body of this utility model.

[0016] In the diagram: 1. Sealing gasket body; 2. Groove; 3. Adhesive gasket; 4. Drainage groove; 5. Main hole; 6. Secondary hole; 7. Expansion sealing strip. Detailed Implementation

[0017] 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.

[0018] like Figures 1-2 As shown, a porous EPDM rubber sealing gasket includes a sealing gasket body 1. Grooves 2 are evenly distributed on the lower surface of the sealing gasket body 1. The inner surface of the grooves 2 and the lower surface of the sealing gasket body 1 are fixedly connected to the same adhesive gasket 3. Drainage grooves 4 are evenly distributed on the left and right sides of the surface of the sealing gasket body 1, and the drainage grooves 4 are symmetrically distributed on the left and right sides of the sealing gasket body 1. The sinking depth of the drainage grooves 4 is 2mm-3mm.

[0019] By adopting the above technical solution, the sealing gasket body 1 is connected to the pipe fitting through the adhesive gasket 3, so that the sealing gasket body 1 is firmly bonded to the corresponding concrete, thereby installing the sealing gasket body 1;

[0020] The drainage channel 4 can guide the water flow outside the sealing gasket body 1 to both sides to prevent water accumulation.

[0021] Furthermore, the adhesive pad 3 is configured as a butyl rubber self-adhesive layer, and a release film is adhered to the lower surface of the adhesive pad 3.

[0022] By adopting the above technical solution, the isolation film can prevent the adhesive pad 3 from losing its stickiness when not in use.

[0023] Furthermore, a main hole 5 is provided in the middle of the front side of the surface of the sealing gasket body 1, and three main holes 5 are provided in a horizontal distribution in the middle of the front side of the sealing gasket body 1.

[0024] The front side of the sealing gasket body 1 has a secondary hole 6 located above and below the main hole 5, and there are two secondary holes 6 located above and below the main hole 5.

[0025] By adopting the above technical solution, the main hole 5 and the secondary hole 6 make the entire sealing gasket body 1 form a porous rubber sealing gasket.

[0026] The main hole 5 and the secondary hole 6 can buffer the compression of the sealing gasket body 1, and can ensure that the other parts are not affected when the entire sealing gasket body 1 is partially damaged, so that the sealing gasket body 1 is interconnected but independent of each other, thereby improving the water-proof effect of the sealing gasket body 1.

[0027] Furthermore, an expansion sealing strip 7 is fixedly connected to the inner wall of the upper surface of the sealing gasket body 1. The expansion sealing strip 7 is made of rubber with an expansion material.

[0028] By adopting the above technical solution, the expansion sealing strip 7 will expand when it comes into contact with water, thereby increasing the contact surface between the entire sealing gasket body 1 and the sealing position, and improving the sealing effect.

[0029] Working Principle: When using this porous EPDM rubber gasket, firstly, when installing the gasket body 1, the user can remove the release liner from the surface of the adhesive pad 3, and then connect the gasket body 1 to the pipe fitting through the adhesive pad 3, so that the gasket body 1 is firmly bonded to the corresponding concrete, sealing the water seepage channel between the gasket body 1 and the concrete, thereby preventing water leakage. During installation, the main hole 5 and the secondary hole 6 can buffer the compression of the gasket body 1, and during use, the main hole 5 and the secondary hole 6 can ensure that the other parts are not affected when the gasket body 1 is partially damaged, so that the gasket body 1 is interconnected but independent. When a large amount of water accumulates on one side of the sealing part of the gasket body 1, the expansion sealing strip 7 will expand upon contact with water, thereby further improving the sealing contact surface of the entire gasket body 1. Furthermore, some of the water will be guided and drained away through the drainage groove 4 to both sides, reducing the accumulation of water on the surface of the gasket body 1. This is the working principle of the porous EPDM rubber gasket.

Claims

1. A porous type EPDM gasket comprising a gasket main body (1), characterized in that, The lower surface of the sealing gasket body (1) is uniformly provided with grooves (2), the inner surface of the grooves (2) and the lower surface of the sealing gasket body (1) are fixedly connected with the same adhesive pad (3), the surface of the sealing gasket body (1) is uniformly provided with drainage grooves (4) on the left and right sides, and the drainage grooves (4) are symmetrically distributed on the left and right sides of the sealing gasket body (1), the sinking depth of the drainage grooves (4) is 2mm-3mm.

2. The porous EPDM gasket according to claim 1, characterized in that, The adhesive pad (3) is made of butyl rubber self-adhesive layer, and the lower surface of the adhesive pad (3) is pasted with a release film.

3. The porous EPDM gasket according to claim 1, wherein The surface of the sealing gasket body (1) is provided with a main hole (5) in the middle of the front side, and three main holes (5) are transversely distributed on the middle of the front surface of the sealing gasket body (1).

4. The porous EPDM gasket according to claim 1, wherein The surface of the sealing gasket body (1) is provided with a sub-hole (6) above and below the main hole (5), and two sub-holes (6) are provided on the upper side and the lower side of the main hole (5).

5. The porous EPDM gasket of claim 1, wherein The upper surface of the sealing gasket body (1) is fixedly connected with an expansion sealing rubber strip (7), and the expansion sealing rubber strip (7) is made of rubber with expansion material.

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