Buried rubber waterstop

By incorporating reinforcing elements, such as polyester fiber mesh, into the self-adhesive components of the embedded rubber waterstop, the problem of loose connections caused by deformation of the rubber waterstop is solved, enhancing the connection strength between the waterstop and the concrete, and improving the waterproofing effect and the service life of the waterproofing project.

CN223937359UActive Publication Date: 2026-02-24FENGZE INTELLIGENT EQUIP CO LTD +1
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Patent Information

Application Number
CN202423251915.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-02-24
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing embedded rubber waterstops are prone to displacement due to rubber deformation during use, resulting in loose connections with concrete, forming leaks and affecting waterproofing performance.

Method used

Reinforcing elements, such as polyester fiber mesh, are installed inside the self-adhesive component to enhance its strength. These reinforcing elements also bind the self-adhesive component to the waterstop body, ensuring a stable connection during deformation.

Benefits of technology

It improves the connection strength between the waterstop and the concrete, reduces the risk of leakage, and extends the service life of the waterproofing project.

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Abstract

The utility model discloses a middle-buried rubber water stop belt, and relates to the technical field of building construction. The water-stop belt is buried in concrete, is used for waterproof treatment of buildings and comprises a water-stop belt body, self-adhesive parts are arranged on the upper side and the lower side of the water-stop belt body, the two self-adhesive parts are arranged in the width direction of the water-stop belt body at intervals, reinforcing ribs connected to the water-stop belt body are arranged on the two sides of each self-adhesive part, reinforcing parts are arranged in the self-adhesive parts, and the reinforcing ribs are connected to the water-stop belt body. And the strength of the self-adhesive part and the water-stop belt body is improved through the arrangement of the reinforcing part. According to the embedded rubber waterstop, the strength of the self-adhesive part is enhanced through the reinforcing part, the self-adhesive part is bound through the reinforcing part, the situation that after the self-adhesive part is pasted to the waterstop body, the waterstop body and concrete generate large relative displacement, and the water leakage prevention effect of the waterstop is affected is prevented, and the engineering waterproof service life is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically to an embedded rubber waterstop. Background Technology

[0002] Waterstops are strip-shaped materials installed at water-stopping locations to prevent water penetration or diffusion. They are frequently used in water conservancy and hydropower projects, tunnels and subways, civil defense works, underground buildings, and other projects. Drainage structures are required during the use of waterstops to improve their effectiveness.

[0003] Rubber waterstops are building waterproofing products made primarily of various types of rubber, combined with various additives, through mixing, molding, or extrusion. Embedded rubber waterstops are mainly used inside concrete, such as in expansion joints and deformation joints. They achieve their waterproofing effect by adapting to the expansion and contraction of the concrete through elastic deformation. As a waterproof barrier, they ensure the longevity of buildings during extended use.

[0004] However, most existing embedded rubber waterstops are made of a simple rubber structure and a self-adhesive layer composite material. During use, rubber deformation can lead to positional displacement, reducing or even eliminating the waterstop's waterproofing effect in concrete, resulting in waterproofing failure. Furthermore, because rubber waterstops are flexible materials, they are prone to deformation and cannot form a tight waterproof structure with the poured concrete, leading to leaky gaps between the flexible rubber waterstop and the rigid concrete, creating potential leakage hazards in the building structure. Therefore, there is an urgent need to improve the method to solve the leakage and seepage hazards of rubber waterstops. Thus, how to provide an embedded waterstop with improved strength of the waterstop and self-adhesive layer is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides an embedded rubber waterstop strip, in which a reinforcing member is set inside the self-adhesive component to improve the strength of the self-adhesive component, prevent deformation of the self-adhesive component from affecting the connection between the concrete and the waterstop strip body, and reduce the risk of leakage. To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides an embedded rubber waterstop strip, which is embedded in concrete for waterproofing in buildings, including:

[0007] The waterstop body has self-adhesive parts on both its upper and lower sides. Two self-adhesive parts are spaced apart along the width of the waterstop body. Each self-adhesive part has reinforcing ribs on both sides that connect to the waterstop body. Reinforcing members are provided inside the self-adhesive parts. The strength of the self-adhesive parts and the waterstop body is improved by the setting of the reinforcing members.

[0008] Furthermore, the self-adhesive component is a self-adhesive layer.

[0009] Furthermore, a flexible polymer layer is provided on the surface of the self-adhesive layer at the end away from the waterstop body.

[0010] Furthermore, a reactive sand layer is disposed on the surface of the polymer flexible layer at the end away from the waterstop body.

[0011] Furthermore, the self-adhesive layer is made of butyl hot melt pressure-sensitive adhesive or other polymer-based hot melt pressure-sensitive adhesive.

[0012] Furthermore, the reinforcing member is a mesh fabric made of polyester fiber.

[0013] Furthermore, the flexible polymer coating is a water-based acrylic adhesive emulsion.

[0014] As can be seen from the above technical solution, compared with the prior art, this utility model discloses an embedded rubber waterstop. A reinforcing member is set inside the self-adhesive component to enhance the strength of the self-adhesive component and to bind the self-adhesive component. When the waterstop body deforms, the waterstop can be stably connected between the waterstop body and the concrete, avoiding large relative displacement between the waterstop body and the concrete, improving the strength of the waterstop body, enhancing the waterstop's anti-leakage effect, and extending the waterproof life of the project. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the embedded rubber waterstop provided by this utility model;

[0017] Figure 2 This is a schematic diagram of part A of the embedded rubber waterstop provided by this utility model.

[0018] In the diagram: 1. Waterstop body; 2. Flexible polymer layer; 3. Reactive sand layer; 4. Reinforcing element; 5. Self-adhesive layer. Detailed Implementation

[0019] 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.

[0020] See Figure 1-2 This utility model discloses an embedded rubber waterstop strip, which is embedded in concrete for waterproofing in buildings, comprising:

[0021] The waterstop body 1 has self-adhesive parts on both the upper and lower sides. Two self-adhesive parts are spaced apart along the width direction of the waterstop body 1. Each self-adhesive part has reinforcing ribs on both sides that are connected to the waterstop body 1. Reinforcing parts 4 are provided inside the self-adhesive parts. The strength of the self-adhesive parts and the waterstop body 1 is improved by the setting of reinforcing parts 4.

[0022] Place two self-adhesive parts along the width direction on both sides of the building joint, and pour concrete above the waterstop.

[0023] The self-adhesive component is bound by the internal reinforcing member 4, which strengthens the stability of the self-adhesive component and thus strengthens the connection between the waterstop body 1 and the concrete. This prevents the waterstop body 1 from shifting within the concrete due to reduced connection strength after deformation.

[0024] After concrete is poured onto the self-adhesive component, the reinforcement 4 inside the self-adhesive component ensures the connection between the waterstop body 1 and the concrete, so that the waterstop and the concrete form a tight waterproof layer, which enhances the waterproof effect and extends the service life of the waterproof quality of the project.

[0025] In some embodiments, the self-adhesive component is a self-adhesive layer 5.

[0026] In some embodiments, a flexible polymer layer 2 is provided on the surface of the self-adhesive layer 5 at the end away from the waterstop body 1.

[0027] The polymer flexible layer 2 enhances the adhesion of concrete, improves the bonding and peel strength between the self-adhesive layer 5 and the concrete, and enhances the adhesion and shear strength of the concrete, thereby enhancing the stability between the concrete and the self-adhesive layer 5, strengthening the connection between the concrete and the waterstop body 1, and thus strengthening the waterproofing effect of the waterstop.

[0028] In some embodiments, a reactive sand layer 3 is disposed on the surface of the polymer flexible layer 2 at the end away from the waterstop body 1.

[0029] The reactive sand is prepared by reacting organic polymer compounds with mineral particles, and then coated onto the surface of a flexible polymer layer through a process of sprinkling, pressing, and baking to form a reactive sand layer 3.

[0030] After the concrete is poured, the reactive sand layer 3 reacts with the concrete and then solidifies, forming a tight bond between the concrete and the waterstop body 1, making the waterstop body 1 and the poured concrete a single unit, thus improving the waterstop's waterproofing quality.

[0031] In some embodiments, the self-adhesive layer 5 is made of butyl hot melt pressure-sensitive adhesive or other polymer-based hot melt pressure-sensitive adhesive.

[0032] The self-adhesive is applied to the upper and lower surfaces of the waterstop body 1 using an adhesive applicator to form a self-adhesive layer 5.

[0033] In some embodiments, the reinforcing member 4 is a mesh fabric made of polyester fiber.

[0034] In some embodiments, the flexible polymer layer 2 is an aqueous acrylic adhesive emulsion.

[0035] A water-based acrylic adhesive emulsion is applied to the surface of the self-adhesive layer 5 via a spraying process to form a flexible polymer layer 2.

[0036] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A type of embedded rubber waterstop, installed in concrete, used for waterproofing in buildings, characterized in that... include: The waterstop body has self-adhesive parts on both its upper and lower sides. Two self-adhesive parts are spaced apart along the width of the waterstop body. Each self-adhesive part has reinforcing ribs on both sides that connect to the waterstop body. Reinforcing members are provided inside the self-adhesive parts. The strength of the self-adhesive parts and the waterstop body is improved by the setting of the reinforcing members.

2. The embedded rubber waterstop according to claim 1, characterized in that, The self-adhesive component is a self-adhesive layer.

3. The embedded rubber waterstop according to claim 2, characterized in that, A flexible polymer layer is provided on the surface of the end of the self-adhesive layer away from the waterstop body.

4. The embedded rubber waterstop according to claim 3, characterized in that, A reactive sand layer is disposed on the surface of the end of the polymer flexible layer away from the waterstop body.

5. The embedded rubber waterstop according to claim 2, characterized in that, The self-adhesive layer is made of butyl hot melt pressure-sensitive adhesive or polymer-based hot melt pressure-sensitive adhesive.

6. The embedded rubber waterstop according to claim 1, characterized in that, The reinforcing element is a mesh fabric made of polyester fiber.

7. The embedded rubber waterstop according to claim 3, characterized in that, The flexible polymer coating is an aqueous acrylic adhesive emulsion.