Self-adhesive water swelling rubber water stop strip

Abstract

The utility model provides a self-adhesive type water swelling rubber water stop strip which comprises two rubber water stop strips, water swelling layers and rubber base layers are arranged in the two rubber water stop strips, reinforcing layers are arranged on the two rubber water stop strips, self-adhesive layers are arranged at the bottom ends of the two reinforcing layers, and the self-adhesive layers and the rubber base layers are arranged in the self-adhesive type water swelling rubber water stop strip. A plurality of mounting holes which are distributed at equal intervals are formed in the two rubber water stop strips; and a sealing assembly is arranged between the rubber water stop strips. Multiple sealing defensive lines are formed through the combined action of the sealing assemblies, the sealing strips and the rubber water stop strips, the rubber water stop strips fill gaps through self-expansion when meeting water, water is prevented from leaking from the gaps, and the two rubber water stop strips can be connected into a relatively stable overall structure; the rubber water stop strip is prevented from shifting or misplacing in the using process, it is guaranteed that the rubber water stop strip plays a water stop function in a preset position, and meanwhile errors in the water stop strip mounting process are reduced.

Description

Technical Field

[0001] This utility model relates to a self-adhesive, water-swellable rubber waterstop strip. Background Technology

[0002] Water-swellable waterstops, also known as slow-expansion rubber waterstops, are strip-shaped rubber waterstop materials made from natural rubber, inorganic water-absorbing materials, and high-viscosity resin. These waterstops are widely used in civil defense projects, swimming pools, sewage treatment plants, underground railways, tunnels, culverts, and other concrete engineering projects for construction joints, expansion joints, and cracks.

[0003] When existing self-adhesive water-swellable rubber waterstops are used, the rubber waterstops may shift or warp due to the flow and vibration of concrete, as well as various external forces that the subsequent structure may be subjected to, such as lateral earth pressure and seismic forces. This can create leakage channels between the rubber waterstop and the concrete or between the waterstops themselves. Furthermore, when multiple waterstops are installed, the spacing and relative position between adjacent waterstops are prone to poor sealing due to installation errors. The tiny gaps between multiple waterstops allow water to seep through these gaps. Utility Model Content

[0004] This invention addresses the technical problems that, during use, rubber waterstops can shift or warp due to the flow and vibration of concrete, as well as various external forces that subsequent structures may experience, such as lateral earth pressure and seismic forces. This can create leakage channels between the rubber waterstop and the concrete or between the waterstops themselves. Furthermore, when installing multiple waterstops, installation errors can lead to inadequate sealing between adjacent waterstops, and the tiny gaps between multiple waterstops allow water to seep through. Therefore, this invention provides a self-adhesive, water-swellable rubber waterstop.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a self-adhesive water-swellable rubber waterstop strip, including two rubber waterstop strips. The interior of each of the two rubber waterstop strips is provided with a water-swellable layer and a rubber base layer. The two rubber waterstop strips are provided with a reinforcing layer. The bottom end of each of the two reinforcing layers is provided with a self-adhesive layer. The two rubber waterstop strips are provided with multiple equally spaced mounting holes.

[0007] A sealing assembly is provided between the rubber waterstop strips. The sealing assembly includes a sealing strip and two limiting strips. The limiting strips are provided between the rubber waterstop strips. Both ends of the limiting strips are fixedly connected to the limiting strips. The two limiting strips are located on both sides of the rubber waterstop strip.

[0008] In this technical solution, a protective layer is provided at the bottom of both self-adhesive layers, and the protective layer is made of polyethylene film material.

[0009] In this technical solution, the water-swellable layer is made of bentonite and superabsorbent polymer.

[0010] In this technical solution, the rubber base layer is made of natural rubber material.

[0011] In this technical solution, carbon black filler, vulcanizing agent and accelerator are added inside the two rubber waterstop strips.

[0012] In this technical solution, the self-adhesive layer is made of pressure-sensitive adhesive material.

[0013] In this technical solution, the reinforcing layer is made of polyester fiber cloth.

[0014] In this technical solution, multiple bolts can be installed on the two rubber waterstop strips, and all of the multiple bolts can be fixed to the concrete through the mounting holes.

[0015] In this technical solution, two connecting plates are provided between the rubber waterstop strips, and two fixing holes are provided on each of the two connecting plates.

[0016] In this technical solution, both bolts can be fixed to the concrete through fixing holes and mounting holes.

[0017] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0018] The positive and progressive effects of this utility model are as follows:

[0019] The aforementioned self-adhesive water-swellable rubber waterstop strip, through the setting of sealing components, forms multiple sealing defenses with the sealing strip and the rubber waterstop strip working together. When the rubber waterstop strip is exposed to water, it expands to fill the gaps, preventing water from seeping through these gaps. At the same time, two rubber waterstop strips can be connected into a relatively stable whole structure, preventing the rubber waterstop strip from shifting or misaligning during use, ensuring that it performs its water-stopping function in the predetermined position. It also helps to reduce errors in the installation process of the rubber waterstop strip. When installing multiple rubber waterstop strips, the sealing strip can ensure the accurate spacing and relative position between adjacent rubber waterstop strips, avoiding problems such as poor sealing caused by installation errors.

[0020] By setting multiple mounting holes, multiple bolts can be used to fix the rubber waterstop to the concrete base. The bolts pass through the mounting holes and are embedded in the base, which can achieve multi-point fixation of the rubber waterstop in the concrete. This can effectively resist these external forces and ensure that the rubber waterstop always stays in the predetermined position, so that it is stably located between the gaps to prevent water leakage. At the same time, the rubber waterstop can be accurately placed at the construction joint or expansion joint according to the position of the mounting holes, ensuring the relative position of the waterstop to the concrete structure and avoiding the risk of leakage caused by incorrect installation of the rubber waterstop.

[0021] By setting two connecting plates, which connect the two rubber waterstop strips together, and fixing them to the concrete with the same bolt passing through the connecting plate and the mounting hole, displacement of the sealing strip under various external forces can be avoided. This ensures that the sealing strip is tightly fitted to the two rubber waterstop strips and the concrete surface, preventing water leakage from these gaps and improving the overall sealing performance of the waterstop structure. At the same time, it also allows the two rubber waterstop strips to form a coordinated whole structure. When the concrete structure deforms, the two rubber waterstop strips can adapt to the deformation together, preventing individual rubber waterstop strips from shifting or being damaged due to uneven stress. This ensures that the waterstop strips always fit against both sides of the joint, maintaining a good water-stopping effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0023] Figure 2 This is a front view structural diagram of the present utility model.

[0024] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0025] Figure 4 This is a side view of the internal structure of the present invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the sealing assembly of this utility model.

[0027] Figure 6 This is a three-dimensional structural diagram of the connecting plate of this utility model.

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Rubber waterstop strip; 2. Water-swellable layer; 3. Bolt; 4. Connecting plate; 5. Rubber base layer; 6. Sealing strip; 7. Protective layer; 8. Self-adhesive layer; 9. Reinforcing layer; 10. Limiting strip; 11. Mounting hole; 12. Fixing hole. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated components, elements, or parts to having a specific orientation, or to be constructed and operated in a specific orientation.

[0033] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0034] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two components, elements, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] like Figure 1-6 As shown, the self-adhesive water-swellable rubber waterstop strip includes two rubber waterstop strips 1. Each of the two rubber waterstop strips 1 has a water-swellable layer 2 and a rubber base layer 5 inside. Each of the two rubber waterstop strips 1 has a reinforcing layer 9. Each of the two reinforcing layers 9 has a self-adhesive layer 8 at its bottom end. Each of the two rubber waterstop strips 1 has multiple equally spaced mounting holes 11.

[0037] A sealing assembly is provided between the two rubber waterstop strips 1. The sealing assembly includes a sealing strip 6 and two limiting strips 10. A limiting strip 10 is provided between the two rubber waterstop strips 1. Both ends of the limiting strip 10 are fixedly connected to the limiting strip 10. Both limiting strips 10 are located on both sides of the rubber waterstop strip 1.

[0038] In this technical solution, a protective layer 7 is provided at the bottom of each of the two self-adhesive layers 8. The protective layer 7 is made of polyethylene film material. Polyethylene film has good flexibility, transparency and chemical stability, which allows it to adhere well to the surface of the waterstop strip when covering it, and will not easily break or tear.

[0039] In this technical solution, the water-swellable layer 2 is made of bentonite and superabsorbent polymer. Bentonite expands when it comes into contact with water. When the waterstop strip comes into contact with water in the concrete construction joint or expansion joint, the bentonite absorbs water and its volume increases rapidly, generating huge expansion pressure. This expansion pressure can fill the gaps and prevent further water leakage, thereby achieving the purpose of water stoppage. Superabsorbent polymer has strong water absorption, and its water absorption capacity can reach hundreds or even thousands of times its own weight. In the rubber waterstop strip, it works synergistically with bentonite, quickly absorbing a large amount of water and expanding when it comes into contact with water, which can fill the gaps more quickly and enhance the water-stopping effect of the rubber waterstop strip.

[0040] In this technical solution, the rubber base layer 5 is made of natural rubber material. Natural rubber material can provide basic elasticity and flexibility, enabling the rubber waterstop strip 1 to adapt to the deformation of the concrete structure, such as the small displacement at expansion joints and construction joints.

[0041] In this technical solution, carbon black filler, vulcanizing agent and accelerator are added inside the two rubber waterstop strips 1. The carbon black filler can enhance the physical properties of the rubber matrix, and carbon black can improve the strength, wear resistance and tear resistance of the rubber.

[0042] Vulcanizing agents are used to cause vulcanization reactions in rubber, crosslinking linear rubber molecular chains into a three-dimensional network structure, which can significantly improve the elasticity, strength, and heat resistance of rubber.

[0043] Accelerators can speed up the vulcanization reaction, allowing the rubber to reach the ideal vulcanization state in a shorter time, improving production efficiency and ensuring the quality stability of the waterstop strip.

[0044] In this technical solution, the self-adhesive layer 8 is made of pressure-sensitive adhesive material, which realizes the self-adhesion function between the waterstop strip and the concrete surface. When installing the waterstop strip, no additional adhesive is required. The waterstop strip can be directly pasted onto the pre-treated concrete surface.

[0045] In this technical solution, the reinforcing layer 9 is made of polyester fiber cloth.

[0046] In this technical solution, multiple bolts 3 can be installed on the two rubber waterstop strips 1, and all of the multiple bolts 3 can be fixed to the concrete through the mounting holes 11.

[0047] In this technical solution, two connecting plates 4 are provided between the two rubber waterstop strips 1, and two fixing holes 12 are provided on each of the two connecting plates 4.

[0048] In this technical solution, both bolts 3 can be fixed to the concrete through the fixing hole 12 and the mounting hole 11.

[0049] In use, the rubber base layer 5 allows the rubber waterstop strip 1 to adapt to the deformation of the concrete structure. When the concrete structure shrinks or expands, the two rubber waterstop strips 1 can deform accordingly without breaking, maintaining a good sealing and water-stopping effect. The water-swellable layer 2 is made of bentonite and superabsorbent polymer materials. It expands upon contact with water, effectively filling these gaps and preventing water leakage. It can also adapt to structural deformation to a certain extent, maintaining its filling effect even under structural deformation, and will not lose its water-stopping ability due to minor structural movement or deformation. The self-adhesive layer 8 uses a pressure-sensitive adhesive material to achieve self-adhesion between the rubber waterstop strip 1 and the concrete surface. When the pressure-sensitive adhesive and other self-adhesive materials come into contact with the concrete surface, they can firmly bond together, ensuring that the rubber waterstop strip 1 remains in place during the concrete pouring process. It will not shift, ensuring the reliability of the water-stopping effect; the carbon black filler can enhance the physical properties of the rubber matrix, helping to improve the overall strength of the rubber waterstop strip 1, making it less prone to damage during use; the vulcanizing agent is used to cause the rubber to undergo a vulcanization reaction, which can significantly improve the rubber's elasticity, strength, and heat resistance; the accelerator can accelerate the vulcanization reaction, allowing the rubber to reach the ideal vulcanization state in a shorter time, improving production efficiency and ensuring the quality stability of the rubber waterstop strip 1; the polyethylene film can effectively prevent the self-adhesive on the surface of the rubber waterstop strip 1 from being contaminated with dust, oil, and other impurities, maintaining the adhesiveness of the self-adhesive; the reinforcing layer 9 is designed with polyester fiber cloth, which can effectively prevent the rubber waterstop strip 1 from breaking when it is subjected to external impact or stress caused by structural deformation during long-term use, ensuring the continuous effectiveness of its water-stopping function;

[0050] The sealing strip 6 and the rubber waterstop strip 1 work together to form a multi-layered sealing barrier. When the rubber waterstop strip 1 comes into contact with water, it expands to fill the gaps. The sealing strip 6 can fill the tiny gaps that may exist between the rubber waterstop strips 1, preventing water from seeping through these gaps. It can also connect two rubber waterstop strips 1 into a relatively stable whole structure, preventing the rubber waterstop strips 1 from shifting or misaligning during use, ensuring that they perform their water-stopping function in the predetermined position. At the same time, it helps to reduce errors in the installation process of the waterstop strip. When installing multiple rubber waterstop strips 1, the sealing strip 6 can ensure the accuracy of the spacing and relative position between adjacent rubber waterstop strips 1, avoiding problems such as poor sealing caused by installation errors.

[0051] During installation, multiple bolts 3 can be used to fix the rubber waterstop 1 to the concrete base. The bolts 3 pass through the mounting holes 11 and are embedded in the base. Multiple equally spaced mounting holes 11 and corresponding bolts 3 can achieve multi-point fixation of the rubber waterstop 1 in the concrete, which can effectively resist these external forces and ensure that the rubber waterstop 1 always stays in the predetermined position, so that it can be stably located between the gaps to prevent water leakage. At the same time, the rubber waterstop 1 can be accurately placed at the construction joint or expansion joint according to the position of the mounting holes 11, ensuring the relative position of the rubber waterstop 1 and the concrete structure, and avoiding the risk of leakage caused by incorrect installation of the rubber waterstop 1.

[0052] Limiting the sealing strip 6 ensures its precise positioning between the two rubber waterstop strips 1. During installation, the connecting plate 4 connects the two rubber waterstop strips 1 together, and the same bolt 3 passes through the connecting plate 4 and the mounting hole 11 to fix it to the concrete. This prevents the sealing strip 6 from shifting under various external forces, ensuring that the sealing strip 6 is tightly fitted with the two rubber waterstop strips 1 and the concrete surface, preventing water leakage from these gaps, and improving the overall sealing performance of the waterstop structure. At the same time, it also allows the two rubber waterstop strips 1 to form a collaborative whole structure. When the concrete structure deforms, the two rubber waterstop strips 1 can adapt to this deformation together, preventing the individual rubber waterstop strip 1 from shifting or being damaged due to uneven stress, ensuring that the rubber waterstop strip 1 is always fitted to both sides of the joint, maintaining a good waterstop effect.

[0053] The advantages of this application are:

[0054] 1. By setting up a sealing component, the sealing strip 6 and the rubber waterstop strip 1 work together to form a multi-layered sealing defense. When the rubber waterstop strip 1 comes into contact with water, it expands to fill the gaps, preventing water from seeping through these gaps. It can also connect two rubber waterstop strips 1 into a relatively stable whole structure, preventing the rubber waterstop strip 1 from shifting or misaligning during use, ensuring that it performs its water-stopping function in the predetermined position. At the same time, it helps to reduce errors in the installation process of the rubber waterstop strip 1. When installing multiple rubber waterstop strips 1, the sealing strip 6 can ensure the accurate spacing and relative position between adjacent rubber waterstop strips 1, avoiding problems such as poor sealing caused by installation errors.

[0055] 2. By setting multiple mounting holes 11, multiple bolts 3 can be used to fix the rubber waterstop 1 to the concrete base. The bolts 3 pass through the mounting holes 11 and are embedded in the base, which can realize multi-point fixation of the rubber waterstop 1 in the concrete. This can effectively resist these external forces and ensure that the rubber waterstop 1 is always kept in the predetermined position, so that it can be stably located between the gaps to prevent water leakage. At the same time, the rubber waterstop 1 can be accurately placed at the construction joint or expansion joint according to the position of the mounting holes 11, ensuring the relative position of the rubber waterstop 1 and the concrete structure, and avoiding the risk of leakage caused by incorrect installation of the rubber waterstop 1.

[0056] 3. By setting two connecting plates 4, the two rubber waterstop strips 1 are connected together. The same bolt 3 passes through the connecting plate 4 and the mounting hole 11 and is fixed to the concrete. This can prevent the sealing strip 6 from shifting under various external forces, ensure that the sealing strip 6 is tightly attached to the two rubber waterstop strips 1 and the concrete surface, prevent water from seeping from these gaps, improve the overall sealing performance of the waterstop structure, and at the same time make the two rubber waterstop strips 1 form a cooperative whole structure. When the concrete structure deforms, the two rubber waterstop strips 1 can adapt to the deformation together, avoid the displacement or damage of a single rubber waterstop strip 1 due to uneven force, and ensure that the rubber waterstop strip 1 is always attached to both sides of the joint to maintain a good waterstop effect.

[0057] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A self-adhesive, water-swellable rubber waterstop strip, comprising two rubber waterstop strips (1), characterized in that: The interior of each of the two rubber waterstop strips (1) is provided with a water-swellable layer (2) and a rubber base layer (5). Each of the two rubber waterstop strips (1) is provided with a reinforcing layer (9). The bottom of each of the two reinforcing layers (9) is provided with a self-adhesive layer (8). Each of the two rubber waterstop strips (1) is provided with multiple equally spaced mounting holes (11). A sealing assembly is provided between the two rubber waterstop strips (1). The sealing assembly includes a sealing strip (6) and two limiting strips (10). A limiting strip (10) is provided between the two rubber waterstop strips (1). Both ends of the limiting strip (10) are fixedly connected to the limiting strip (10). Both limiting strips (10) are located on both sides of the rubber waterstop strip (1).

2. The self-adhesive water-swellable rubber waterproof strip as described in claim 1, characterized in that: A protective layer (7) is provided at the bottom of each of the two self-adhesive layers (8), and the protective layer (7) is made of polyethylene film material.

3. The self-adhesive water-swellable rubber waterstop strip as described in claim 1, characterized in that: The water-swellable layer (2) is made of bentonite and superabsorbent polymer.

4. The self-adhesive water-swellable rubber waterstop strip as described in claim 1, characterized in that: The rubber base layer (5) is made of natural rubber material.

5. The self-adhesive water-swellable rubber waterstop strip as described in claim 1, characterized in that: The interior of the two rubber waterstop strips (1) contains carbon black filler, vulcanizing agent and accelerator.

6. The self-adhesive water-swellable rubber waterstop strip as described in claim 2, characterized in that: The self-adhesive layer (8) is made of pressure-sensitive adhesive material.

7. The self-adhesive water-swellable rubber waterstop strip as described in claim 2, characterized in that: The reinforcing layer (9) is made of polyester fiber cloth.

8. The self-adhesive water-swellable rubber waterstop strip as described in claim 1, characterized in that: Multiple bolts (3) can be installed on the two rubber waterstop strips (1), and all of the multiple bolts (3) can be fixed to the concrete through the mounting holes (11).

9. The self-adhesive water-swellable rubber waterstop strip as described in claim 1, characterized in that: Two connecting plates (4) are provided between the two rubber waterstop strips (1), and two fixing holes (12) are provided on each of the two connecting plates (4).

10. The self-adhesive water-swellable rubber waterstop strip as described in claim 8, characterized in that: Both bolts (3) can be fixed to the concrete through the fixing hole (12) and the mounting hole (11).

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