Buried rubber waterstop capable of increasing transverse rigidity

By installing a composite plate inside the rubber waterstop, the problems of sagging and bending of the embedded rubber waterstop during installation are solved, the lateral stiffness is enhanced, the waterproofing effect is ensured, the construction steps and time are reduced, and the construction efficiency is improved.

CN224187576UActive Publication Date: 2026-05-01BEIJING FEIZHOU SHUNCHI TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING FEIZHOU SHUNCHI TECHNOLOGY CO LTD
Filing Date
2025-03-13
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing embedded rubber waterstops are prone to sagging, bending, and shifting due to their own weight during installation, resulting in poor waterproofing performance. Furthermore, the construction process involves many steps and takes a long time.

Method used

A composite plate is installed inside the rubber waterstop. The composite plate consists of elastic elements and thermosetting fasteners. The composite plate is vulcanized with the waterstop body to enhance the lateral stiffness, ensure that the waterstop does not sag during installation, and can deform synchronously when stretched.

Benefits of technology

It improves the lateral stiffness of the rubber waterstop, prevents sagging and bending, reduces construction steps, shortens construction time, and enhances waterproofing effect and construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of tunnel and underground engineering water-stop belts, and particularly relates to a middle-buried rubber water-stop belt capable of increasing transverse rigidity, which comprises a water-stop belt body and a composite board. The multiple composite plates are evenly arranged in the water stop belt body in the length direction of the water stop belt body, each composite plate comprises an elastic piece and a heat fixing piece, and the elastic pieces wrap the heat fixing pieces. By means of the characteristic of high overall rigidity of the composite board, the waterstop is endowed with high transverse rigidity, and it is guaranteed that in the installation process, only one half of the middle-buried rubber waterstop is fixed, and the other half of the middle-buried rubber waterstop does not droop or deform; the external material of the composite board is an elastic material, so that the composite board and the water stop belt can be stretched and deformed together when the water stop belt is stretched; and the composite board is arranged in the waterstop body in the manufacturing process of the waterstop, so that the construction steps are reduced, and the construction time is shortened.
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Description

Technical Field

[0001] This utility model belongs to the technical field of waterstops for tunnels and underground engineering, and specifically relates to a centrally embedded rubber waterstop that increases lateral stiffness. Background Technology

[0002] Embedded rubber waterstops are important waterproofing materials for concrete joints in tunnels. Installed in the middle of the tunnel lining, they can deform with the displacement of the tunnel expansion joints without losing their waterproofing function. However, existing rubber waterstops, due to their low material hardness (60 Shore), are prone to sagging, bending, and displacement during installation due to their own weight. They can even cut into the concrete, causing "pieces to fall off," which seriously affects the waterproofing effect and driving safety.

[0003] Therefore, in order to address the problems of sagging, bending, shifting, or even cutting the concrete during the installation of embedded rubber waterstops in the existing technology due to their own weight and the concrete pouring process, there is a need to provide an embedded rubber waterstop with increased lateral stiffness. Utility Model Content

[0004] This utility model provides a centrally embedded rubber waterstop that increases lateral stiffness, solving the problems of existing centrally embedded rubber waterstops being prone to sagging, bending, shifting, or even cutting the concrete during installation due to their own weight and concrete pouring, as well as the numerous construction steps and long construction time.

[0005] This utility model is achieved through the following technical solution: it includes a waterstop strip body and a composite plate;

[0006] Multiple composite plates are evenly arranged within the waterstop body along its length. Each composite plate includes an elastic element and a thermal fastener, with the elastic element wrapping around the thermal fastener.

[0007] To better realize this utility model, the above structure is further optimized, and the spacing between the multiple composite plates is 0.1-1.0 meters.

[0008] To better realize this utility model, the above structure is further optimized by vulcanizing the composite plate and the waterstop body together.

[0009] To better realize this utility model, further optimizations are made to the above structure. The thickness of the composite plate is 1 / 3 to 1 / 2 of the thickness of the waterstop body, and the length of the composite plate differs from the width of the waterstop body by 5-15 mm.

[0010] To better realize this utility model, the above structure is further optimized. The composite plate is provided with multiple through holes, and the area of ​​the through holes accounts for 10%-20% of the area of ​​the composite plate.

[0011] To better realize this utility model, further optimizations are made to the above structure. The cross-sectional shape of the thermal fastener is circular, square, or triangular, and multiple thermal fasteners are evenly distributed along the length direction of the elastic member.

[0012] To better realize this utility model, the above structure is further optimized, and the through holes are evenly distributed in the gap between every two thermal fasteners.

[0013] To better realize this utility model, further optimizations are made to the above structure, wherein the elastic element is trapezoidal, parallelogram, H-shaped, X-shaped, or bone-shaped.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] This utility model provides a waterstop body and a composite plate; multiple composite plates are evenly arranged within the waterstop body along its length. Each composite plate includes an elastic element and a heat-resistant fastener, with the elastic element encasing the heat-resistant fastener. Utilizing the high overall rigidity of the composite plate, the waterstop is given strong lateral rigidity, ensuring that during installation, only half of the embedded rubber waterstop is fixed, preventing sagging or deformation of the other half. The use of an elastic material for the outer layer of the composite plate ensures that it deforms along with the waterstop when it is stretched. Furthermore, because the composite plate is vulcanized within the waterstop body during production, construction steps are reduced, and construction time is shortened. Attached Figure Description

[0016] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of the embedded rubber waterstop with increased lateral stiffness in this utility model.

[0018] Figure 2 This is a side view of the embedded rubber waterstop with increased lateral stiffness in this utility model.

[0019] In the picture:

[0020] 1-Waterstop body; 2-Elastic element; 3-Thermostatic fastener; 4-Through hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Example 1:

[0025] An embedded rubber waterstop with increased lateral stiffness includes: a waterstop body 1 and a composite plate;

[0026] Multiple composite plates are evenly arranged inside the waterstop body 1 along the length direction of the waterstop body 1. Each composite plate includes an elastic element 2 and a heat-fixing element 3, and the elastic element 2 wraps around the heat-fixing element 3.

[0027] The above structure utilizes the high overall rigidity of the composite board to give the waterstop strong lateral rigidity, ensuring that only half of the waterstop is fixed during installation, and the other half will not sag or deform. The use of an elastic material for the outer layer of the composite board ensures that the composite board can undergo tensile deformation together with the waterstop when it is stretched. Furthermore, because the composite board is vulcanized into the waterstop body 1 during the production process, the construction steps are reduced and the construction time is shortened.

[0028] The spacing between multiple such composite plates is 0.1 - 1.0 meters. Preferably, the spacing between multiple composite plates is 0.3 meters, and this spacing can maximize the lateral stiffness of the waterstop.

[0029] The above-mentioned composite plate is vulcanized into one body with the waterstop body 1. Through the vulcanization process, the composite plate and the waterstop body 1 are integrated, enhancing the stability of their combination and avoiding the separation of the composite plate and the waterstop under high strength.

[0030] The thickness of the above-mentioned composite plate is 1 / 3 - 1 / 2 of the thickness of the waterstop, and the length of the above-mentioned composite plate and the width of the waterstop both differ by 5 - 15 mm. Such a distance of the composite plate ensures that the supporting and elastic properties of the composite plate can be exerted while the waterstop can achieve normal working performance.

[0031] Multiple through holes 4 are provided on the above-mentioned composite plate, and the area of the through holes accounts for 10% - 20% of the area of the composite plate. Through the multiple through holes 4, the waterstop forms a rubber chain structure. During the production of the waterstop, multiple through holes 4 are drilled on the composite plate, so that when the rubber waterstop wraps the composite plate, the rubber fills the through holes 4, making the connection between the composite plate and the waterstop closer.

[0032] The cross-sectional shape of the above-mentioned thermal fastener 3 is circular or square or triangular, and multiple above-mentioned thermal fasteners 3 are evenly distributed along the length direction of the elastic member 2. Preferably, the inside of the composite plate can be a metal part, that is, a material that can provide support for the composite plate; the internal thermal fastener 3 is in the shape of a "hui" character, wire mesh, etc., and there is a space for through holes reserved between the thermal fasteners 3. The internal material is a thermosetting material or a metal material. The elastomer material is mainly a thermoplastic elastomer or a polyurethane elastomer, and the thermosetting material can be selected from epoxy resin, polyurethane, etc.; the metal material can be selected from carbon steel, cast iron, aluminum alloy, stainless steel, special metals, etc.

[0033] The above-mentioned through holes 4 are evenly distributed in the gaps between every two of the above-mentioned thermal fasteners 3.

[0034] The above-mentioned elastic member 2 is trapezoidal or parallelogram or H-shaped or X-shaped or bone-shaped. Preferably, the elastic member 2 is trapezoidal, parallelogram, H-shaped, X-shaped, bone-shaped, etc. The composite plate with the above structure can provide elasticity for the waterstop and provide tensile properties.

[0035] Specifically, the waterstop consists of a waterstop body 1 and a composite plate. By horizontally setting an external elastic element 2 and an internal heat-fixing element 3 inside the composite plate, the waterstop can have lateral bending resistance without other devices. This effectively ensures that the waterstop will not sag or bend due to its own weight or the impact of poured concrete during installation. Furthermore, since the waterstop is vulcanized as a whole during the production process, there is no need to combine the composite plate with the waterstop body 1 during installation, saving construction time and costs and improving construction efficiency.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A type of embedded rubber waterstop with increased lateral stiffness, characterized in that: Includes the waterstop body (1) and the composite board; Multiple composite plates are uniformly arranged inside the waterstop body (1) along the length direction of the waterstop body (1). The composite plate includes an elastic element (2) and a heat-fixing element (3). The elastic element (2) wraps the heat-fixing element (3).

2. The embedded rubber waterstop with increased lateral stiffness according to claim 1, characterized in that: The spacing between multiple composite panels is 0.1-1.0 meters.

3. The embedded rubber waterstop with increased lateral stiffness according to claim 1, characterized in that: The composite board and the waterstop body (1) are vulcanized together.

4. The embedded rubber waterstop with increased lateral stiffness according to claim 1, characterized in that: The thickness of the composite plate is 1 / 3 to 1 / 2 of the thickness of the waterstop body (1), and the length of the composite plate differs from the width of the waterstop body (1) by 5-15 mm.

5. The embedded rubber waterstop with increased lateral stiffness according to claim 4, characterized in that: The composite board has multiple through holes (4), and the area of ​​the through holes accounts for 10%-20% of the area of ​​the composite board.

6. The embedded rubber waterstop with increased lateral stiffness according to claim 5, characterized in that: The cross-sectional shape of the thermal fastener (3) is circular, square or triangular, and multiple thermal fasteners (3) are evenly distributed along the length direction of the elastic member (2).

7. The embedded rubber waterstop with increased lateral stiffness according to claim 5, characterized in that: The through holes (4) are evenly distributed in the gap between each pair of thermal fasteners (3).

8. The embedded rubber waterstop with increased lateral stiffness according to claim 1, characterized in that: The elastic element (2) is trapezoidal, parallelogram, H-shaped, X-shaped, or bone-shaped.