Composite type elastic sealing gasket capable of expanding when encountering water

Abstract

The utility model provides a composite type water-swelling elastic sealing gasket, which relates to the technical field of elastic sealing gaskets and comprises a main body rubber layer, a second water-swelling layer arranged on one side of the main body rubber layer, a third water-swelling layer arranged on one side of the main body rubber layer, a reinforcing layer arranged on one side of the main body rubber layer and a water blocking hole arranged on one side of the main body rubber layer. The first water-swelling layer, the second water-swelling layer and the third water-swelling layer are arranged on the two sides of the main body rubber layer respectively, so that the water-swelling layers rapidly swell and fill gaps when encountering water during use, the water-swelling layers and the water-swelling layers act synergistically, the waterproof effect of the water-stop belt is greatly improved, and even if a concrete structure has tiny cracks or displacement, the water-stop belt can be prevented from falling off. The expansion effect of the water swelling layer can ensure that the water stop belt stops water continuously and effectively.

Description

Technical Field

[0001] This utility model relates to the field of elastic sealing gasket technology, and in particular to a composite water-swellable elastic sealing gasket. Background Technology

[0002] According to Chinese Patent No. CN211524848U, this utility model belongs to the field of shield tunneling technology, specifically relating to a composite elastic sealing gasket that enhances the waterproof performance of tunnel segment joints. The gasket includes a sealing gasket body with an installation end that can extend into the waterproof groove of the shield tunnel segment. One side of the installation end of the sealing gasket body is a water-facing side for approaching the water-facing side of the shield tunnel segment, and the other side is a water-repellent side for approaching the backwater side of the shield tunnel segment. Water-swellable rubber is provided on the installation end of the sealing gasket body at a position corresponding to the water-repellent side of the sealing gasket body. The composite elastic sealing gasket provided by this utility model, by providing water-swellable rubber on the water-repellent side of the sealing gasket body for approaching the backwater side of the shield tunnel segment, effectively prevents groundwater from entering the tunnel through the joints when the sealing gasket body is not tightly fitted within the waterproof groove of the tunnel segment or under water pressure. This enhances the waterproof performance of the tunnel segment joints, reduces leakage, and ensures the safety of structural construction and operation.

[0003] The aforementioned prior art and related documents have the following technical problems:

[0004] 1. Traditional waterstops, during long-term use, are affected by environmental factors, groundwater erosion, and structural deformation, resulting in a gradual decline in their waterproofing effect. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a composite water-swellable elastic sealing gasket.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a composite water-swellable elastic sealing gasket, comprising a main rubber layer, a second water-swellable layer on one side of the main rubber layer, a third water-swellable layer on one side of the main rubber layer, a reinforcing layer on one side of the main rubber layer, and a water-blocking hole on one side of the main rubber layer.

[0007] Preferably, a deformation hole is provided on one side of the main rubber layer, and the interior of the deformation hole is cut.

[0008] Preferably, the front side of the main rubber layer is provided with a protrusion, and the back side of the protrusion is bonded to the front side of the main rubber layer.

[0009] Preferably, the back of the main rubber layer is provided with a groove, and the groove is provided by cutting, with a depth of five centimeters.

[0010] Preferably, the front side of the protrusion is provided with a sealing strip, and the back side of the sealing strip is glued to the front side of the protrusion.

[0011] Preferably, the top of the main rubber layer is provided with anti-slip texture, and the bottom of the anti-slip texture is bonded to the top of the main rubber layer, and the anti-slip texture is arranged in a matrix.

[0012] Preferably, a first water-swellable layer is provided on one side of the main rubber layer, and the first water-swellable layer is arranged in a matrix.

[0013] Beneficial effects

[0014] In this invention, a first water-swellable layer, a second water-swellable layer, and a third water-swellable layer are respectively provided on both sides of the main rubber layer. In this way, when in use, the water-swellable layer expands rapidly when it comes into contact with water, filling the gaps. The two work together to greatly improve the waterproof effect of the waterstop. Even if there are minor cracks or displacements in the concrete structure, the expansion effect of the water-swellable layer can ensure that the waterstop continues to effectively stop water.

[0015] In this invention, anti-slip textures are provided on the top of the main rubber layer. These textures allow the main rubber layer to adhere more tightly to the concrete, reducing gaps between the contact surfaces and effectively preventing water from seeping along the contact surfaces. This further strengthens the waterproofing of the waterstop, enhancing its waterproofing effect. The textures also increase the friction between the main rubber layer and the concrete. During concrete pouring and vibration, this helps to better fix the concrete, making the bond between the two more stable and preventing peeling between the waterstop and the concrete, resulting in a more secure bond.

[0016] In this invention, a protrusion is provided on one side of the main rubber layer, and a groove is provided on the other side. A sealing strip is provided on the front of the protrusion. The connection structure at both ends of the waterstop uses a tongue-and-groove fit and a sealant seal, making installation simple and convenient, enabling quick connection between waterstops and improving construction efficiency. Simultaneously, the design of the fixing structure ensures that the waterstop is firmly fixed during concrete pouring, eliminating the need for additional complex fixing measures. Attached Figure Description

[0017] Figure 1 This is an isometric view of the present invention;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 This is the second axonometric drawing of the present invention;

[0020] Figure 4 This is a front view of the present invention.

[0021] Legend:

[0022] 1. Main rubber layer; 2. First water-swellable layer; 3. Reinforcing layer; 4. Second water-swellable layer; 5. Sealing strip; 6. Protrusion; 7. Groove; 8. Anti-slip texture; 9. Deformation hole; 10. Water-blocking hole; 11. Third water-swellable layer. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0026] Reference Figure 1-4 A composite water-swellable elastic sealing gasket includes a main rubber layer 1, a second water-swellable layer 4 on one side of the main rubber layer 1, a deformation hole 9 on one side of the main rubber layer 1 with the interior of the deformation hole 9 being cut, a protrusion 6 on the front of the main rubber layer 1 with the back of the protrusion 6 being glued to the front of the main rubber layer 1, a groove 7 on the back of the main rubber layer 1 with the groove being cut and the groove 7 having a depth of five centimeters, a sealing strip 5 on the front of the protrusion 6 with the back of the sealing strip 5 being glued to the front of the protrusion 6, anti-slip texture 8 on the top of the main rubber layer 1 with the bottom of the anti-slip texture 8 being glued to the top of the main rubber layer 1, the anti-slip texture 8 being arranged in a matrix, a first water-swellable layer 2 on one side of the main rubber layer 1 with the first water-swellable layer 2 being arranged in a matrix, a third water-swellable layer 11 on one side of the main rubber layer 1, a reinforcing layer 3 on one side of the main rubber layer 1, and a water-blocking hole 10 on one side of the main rubber layer 1.

[0027] A first water-swellable layer 2, a second water-swellable layer 4, and a third water-swellable layer 11 are respectively provided on both sides of the main rubber layer 1. This allows the water-swellable layer to expand rapidly when exposed to water, filling gaps. The two layers work together to greatly improve the waterproofing effect of the waterstop. Even if there are minor cracks or displacements in the concrete structure, the expansion of the water-swellable layer can ensure that the waterstop continues to effectively stop water. Anti-slip texture 8 is provided on the top of the main rubber layer 1. This texture makes the main rubber layer 1 adhere more tightly to the concrete, reducing the gaps between the two contact surfaces and effectively preventing water from seeping along the contact surface. This further strengthens the waterproofing barrier of the waterstop and adds to the waterproofing effect. The texture also increases the friction between the main rubber layer 1 and the concrete. During concrete pouring and vibration, the waterstop can better fix the concrete, making the bond between the waterstop and the concrete more stable and preventing peeling. The main rubber layer 1 has a protrusion 6 on one side and a groove 7 on the other, with a sealing strip 5 on the front of the protrusion 6. The connection structure at both ends of the waterstop uses a tongue-and-groove fit and sealant sealing method, making installation simple and convenient, and enabling quick connection between waterstops, improving construction efficiency. At the same time, the design of the fixing structure ensures that the waterstop is firmly fixed during concrete pouring, eliminating the need for additional complex fixing measures. Specific Implementation Example 2:

[0029] Reference Figure 1-4 The system employs buffer layers on both sides of the main rubber layer 1. These buffer layers feature a structure with numerous micro-closed pores that allow for elastic deformation when the gasket is subjected to external pressure or structural deformation, effectively absorbing and dispersing stress. This prevents damage to the main rubber layer and the water-swellable layer due to excessive pressure or stress concentration.

[0030] In summary:

[0031] The system employs a first water-swellable layer 2, a second water-swellable layer 4, and a third water-swellable layer 11 on both sides of the main rubber layer 1. This allows the water-swellable layer to expand rapidly when exposed to water, filling the gaps. The combined effect of the two layers greatly improves the waterproofing effect of the waterstop. Even if there are minor cracks or displacements in the concrete structure, the expansion of the water-swellable layer can ensure that the waterstop continues to effectively stop water.

[0032] The design incorporates anti-slip textured patterns 8 on the top of the main rubber layer 1. These patterns ensure a tighter bond between the main rubber layer 1 and the concrete, reducing gaps between the contact surfaces and effectively preventing water penetration. This further strengthens the waterproofing of the waterstop, enhancing its waterproofing performance. The textured patterns also increase the friction between the main rubber layer 1 and the concrete. During concrete pouring and vibration, this helps to better fix the concrete, resulting in a more stable bond and preventing peeling between the waterstop and the concrete, thus ensuring a more secure connection.

[0033] The design incorporates a protrusion 6 on one side of the main rubber layer 1 and a groove 7 on the other, allowing for a sealing strip 5 on the front of the protrusion 6. The connection structure at both ends of the waterstop uses a tongue-and-groove fit and sealant sealing method, making installation simple and convenient, enabling rapid connection between waterstops and improving construction efficiency. Simultaneously, the fixed structure design ensures the waterstop is firmly fixed during concrete pouring, eliminating the need for additional complex fixing measures.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A composite water-swellable elastic sealing gasket, comprising a main rubber layer (1), characterized in that: The main rubber layer (1) has a second water-swellable layer (4) on one side, a third water-swellable layer (11) on one side, a reinforcing layer (3) on one side, and a water-blocking hole (10) on one side.

2. The composite water-swellable elastic sealing gasket according to claim 1, characterized in that: The main rubber layer (1) has a deformation hole (9) on one side, and the interior of the deformation hole (9) is cut.

3. The composite water-swellable elastic sealing gasket according to claim 1, characterized in that: The front side of the main rubber layer (1) is provided with a protrusion (6), and the back side of the protrusion (6) is bonded to the front side of the main rubber layer (1).

4. The composite water-swellable elastic sealing gasket according to claim 1, characterized in that: The back of the main rubber layer (1) is provided with a groove (7), and the groove (7) is cut, with a depth of five centimeters.

5. The composite water-swellable elastic sealing gasket according to claim 1, characterized in that: The front of the protrusion (6) is provided with a sealing strip (5), and the back of the sealing strip (5) and the front of the protrusion (6) are glued together.

6. The composite water-swellable elastic sealing gasket according to claim 1, characterized in that: The top of the main rubber layer (1) is provided with anti-slip texture (8), and the bottom of the anti-slip texture (8) is bonded to the top of the main rubber layer (1). The anti-slip texture (8) is arranged in a matrix.

7. The composite water-swellable elastic sealing gasket according to claim 1, characterized in that: The main rubber layer (1) has a first water-swellable layer (2) on one side, and the first water-swellable layer (2) is arranged in a matrix.

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