A water-stopping structure combining a rubber waterstop and a water-swellable waterstop strip.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]为了解决单一的橡胶止水带使用过程中，受施加作业缺陷，环境因素变化等存在止水失效的问题，本实用新型提供了一种橡胶止水带与遇水膨胀止水条组合的止水结构
[0022]本实用新型的有益效果：本实用新型，通过在橡胶止水带的两侧部位固定连接第一遇水膨胀止水条，当第一遇水膨胀止水条遇水的时候膨胀，体积增大，进行挤压橡胶止水带，并密实填充混凝土之间的缝隙，保证止水效果；从而解决了由于环境因素(温度变化)、施工质量(混凝土捣密实未做充分)因素等，橡胶止水带与混凝土之间的贴合质量不足，水可以从橡胶止水带表面与混凝土结构之间的缝隙渗入的问题。
Smart Images
Figure CN224633882U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete structure water-stopping technology, specifically a water-stopping structure combining a rubber waterstop strip and a water-swellable waterstop strip. Background Technology
[0002] Waterstops in concrete structures of water conservancy and hydropower projects are key components to ensure the seepage prevention, durability, and safe operation of the engineering structure. Waterstops need to be placed at the expansion joints and construction joints of the concrete structure to block or isolate water. Although waterstops are "small components" in concealed works, they are the "lifeline" of the seepage prevention system of water conservancy and hydropower projects. Some projects still experience structural leakage due to the failure of waterstops.
[0003] Besides improper installation and insufficient compaction of concrete during construction, the failure of rubber waterstops can also be caused by cracks in the concrete near the waterstop due to stress and strain from temperature and settlement. When these cracks penetrate and form seepage channels, the waterstop fails, leading to structural leakage, which affects the normal operation of the project and causes significant losses. Therefore, this utility model provides a waterstop structure that combines a rubber waterstop with a water-swellable waterstop strip. Utility Model Content
[0004] To address the problem of water-stopping failure caused by application defects or changes in environmental factors during the use of a single rubber waterstop, this invention provides a water-stopping structure combining a rubber waterstop and a water-swellable waterstop strip.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A water-stopping structure combining a rubber waterstop strip and a water-swellable waterstop strip, used for water-stopping engineering joints between two sets of concrete structures, comprising:
[0007] A rubber waterstop is installed horizontally within the engineering joint and placed on both sides within two sets of concrete structures.
[0008] The rubber waterstop is fixedly connected to the first water-swellable waterstop strip on both sides and within the concrete structure.
[0009] As a further description of the above technical solution:
[0010] The rubber waterstop includes:
[0011] An annular portion, with wings fixedly connected to both sides of the annular portion and located within two sets of concrete structures;
[0012] The first water-swellable sealing strip is fixedly installed on both sides of the wing.
[0013] As a further description of the above technical solution:
[0014] An inverted triangular portion is fixedly connected to the end of the wing that is away from the annular portion.
[0015] As a further description of the above technical solution:
[0016] The wing has at least two sets of water-blocking strips on its side, and the first water-swellable water-stop strip is located between the two sets of water-blocking strips.
[0017] As a further description of the above technical solution:
[0018] The annular part, wing part, inverted triangular part, and water-blocking strip are integrated into one structure.
[0019] As a further description of the above technical solution:
[0020] It also includes: waterproof filler blocks installed on the water-facing side of the joints in the engineering process;
[0021] The waterproof filler includes: a water-blocking rubber block and a second water-swellable waterstop strip fixedly connected to both sides of the water-blocking rubber block, with two sets of the second water-swellable waterstop strips located within two sets of concrete structures.
[0022] The beneficial effects of this utility model are as follows: This utility model fixes a first water-swellable waterstop strip to both sides of the rubber waterstop. When the first water-swellable waterstop strip comes into contact with water, it expands and increases in volume, squeezing the rubber waterstop and densely filling the gaps between the concrete, thus ensuring the water-stopping effect. This solves the problem that due to environmental factors (temperature changes) and construction quality (insufficient compaction of concrete), the bonding quality between the rubber waterstop and the concrete is insufficient, allowing water to seep into the gaps between the surface of the rubber waterstop and the concrete structure. Attached Figure Description
[0023] To more clearly illustrate a water-stopping structure combining a rubber waterstop and a water-swellable waterstop strip, the following figures are shown;
[0024] Figure 1 This is a schematic diagram of the installation of this utility model.
[0025] The labels in the attached diagram;
[0026] 1. Engineering joint; 2. Circular part; 3. Wing part; 4. Inverted triangular part; 5. Water-blocking strip; 6. First water-swellable water-stop strip; 7. Water-blocking rubber block; 8. Second water-swellable water-stop strip. Detailed Implementation
[0027] Please refer to the attached document. Figure 1This application illustrates a water-stopping structure combining a rubber waterstop and a water-swellable waterstop strip, used for water-stopping an engineering gap 1 between two sets of concrete structures. The engineering gap 1 can refer to an expansion joint, construction joint, or other concrete gaps designed in engineering projects. Specifically, it includes a rubber waterstop and a first water-swellable waterstop strip 6.
[0028] The rubber waterstop is installed laterally within the engineering joint 1, with both sides of the rubber waterstop placed within two sets of concrete structures, forming a shape as follows: Figure 1 As shown, the rubber waterstop plays the main role in stopping water. The rubber waterstop is installed simultaneously with the two sets of concrete structures, so that it is embedded in the concrete structure. It is necessary to ensure that the concrete at the location of the rubber waterstop is dense. The two sides of the rubber waterstop and located in the concrete structure are fixedly connected with the first water-swellable waterstop strip 6. The first water-swellable waterstop strip 6 and the rubber waterstop can be fixed with glue, heat fusion or other fastening structure.
[0029] In actual construction, due to environmental factors (temperature changes) and construction quality (insufficient compaction of concrete), the bonding quality between the rubber waterstop and the concrete is insufficient. Water can seep into the gap between the surface of the rubber waterstop and the concrete structure. By fixing and connecting the first water-swellable waterstop strip 6 to both sides of the rubber waterstop, the first water-swellable waterstop strip 6 expands when it comes into contact with water, increases in volume, squeezes the rubber waterstop, and fills the gap between the concrete, ensuring the water-stopping effect.
[0030] In one embodiment, the rubber waterstop includes: an annular portion 2 and a wing portion 3.
[0031] The annular part 2 is located inside the engineering joint 1. On both sides of the annular part 2 and within the two sets of concrete structures, the wings 3 are fixedly connected. The wings 3 are located inside the concrete structure, so that the rubber waterstop is horizontally placed in the engineering joint 1. The first water-swellable waterstop strip 6 is fixedly installed on both sides of the wings 3. The first water-swellable waterstop strip 6 is used to increase the tightness between the wings 3 and the concrete structure.
[0032] In one embodiment, an inverted triangular portion 4 is fixedly connected to the end of the wing 3 away from the annular portion 2. The inverted triangular portion 4 is used to increase the stability of the bond between the end of the wing 3 and the concrete, and to prevent the wing 3 from slipping between itself and the concrete when subjected to lateral force.
[0033] In one embodiment, at least two sets of water-blocking strips 5 are provided on the side of the wing 3. The first water-swellable water-stop strip 6 is located between the two sets of water-blocking strips 5. The two sets of water-blocking strips 5 are the water-stopping structure of the rubber waterstop itself. Its effect is affected by environmental factors (temperature changes), construction quality (insufficient compaction of concrete), etc. It is difficult to guarantee 100% sealing effect during actual construction. Therefore, the first water-swellable water-stop strip 6 is also designed.
[0034] In one embodiment, the annular portion 2, the wing portion 3, the inverted triangular portion 4, and the water-blocking strip 5 are an integral structure, manufactured using an integral rubber injection molding process with internal reinforcement.
[0035] In one embodiment, it further includes a waterproof filler block disposed on the water-facing side of the engineering joint 1.
[0036] Waterproof filler blocks are used to block water and prevent water flow from directly impacting the rubber waterstop. The waterproof filler blocks form the first layer of sealing and water-stopping structure.
[0037] Specifically, the waterproof filler includes: a water-blocking rubber block 7 and a second water-swellable waterstop strip 8 fixedly connected to both sides of the water-blocking rubber block 7. The two sets of second water-swellable waterstop strips 8 are located within the two sets of concrete structures.
[0038] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.
[0039] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.
Claims
1. A waterstop structure of a rubber waterstop combined with a water-swellable waterstop strip for waterstopping of an engineering gap (1) between two groups of concrete structures, characterized in that, The application relates to a waterproof structure of a construction joint. The rubber waterproof belt is fixedly connected with first water-swelling waterproof strips (6) on both sides in the concrete structures. The rubber waterproof belt comprises:
2. A waterstop structure of a rubber waterstop tape combined with a water-swellable waterstop strip according to claim 1, characterized in that, The annular part (2) is fixedly connected with wing parts (3) on both sides in the concrete structures. The first water-swelling waterproof strips (6) are fixedly arranged on the two side faces of the wing parts (3). The wing parts (3) are fixedly connected with inverted triangular parts (4) at one end away from the annular part (2).
3. A waterstop structure of a rubber waterstop band combined with a water-swellable waterstop strip according to claim 2, characterized in that: The side face of the wing part (3) is provided with at least two groups of water-blocking strips (5), and the first water-swelling waterproof strips (6) are located between the two groups of water-blocking strips (5).
4. A waterstop structure of a rubber waterstop band combined with a water-swellable waterstop strip according to claim 3, characterized in that: The annular part (2), the wing part (3), the inverted triangular part (4) and the water-blocking strip (5) are integrated.
5. A waterstop structure of a rubber waterstop band combined with a water-swellable waterstop strip according to claim 3, characterized in that: The application further relates to a waterproof structure of a construction joint.
6. A waterstop structure of a rubber waterstop band combined with a water-swellable waterstop strip according to claim 5, characterized in that, The waterproof filling block comprises water-blocking rubber blocks (7) and second water-swelling waterproof strips (8) fixedly connected on both sides of the water-blocking rubber blocks (7), and the two groups of second water-swelling waterproof strips (8) are located in the two groups of concrete structures.