A durable rubber flashing strip that is easy to install

CN224884561UActive Publication Date: 2026-10-23BEIJING KELAIFU ROAD MATERIAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522554080.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-02
Publication Date
2026-10-23
Estimated Expiration
2035-12-02

AI Technical Summary

Technical Problem

[0003]目前市场普遍采用的是单一的V形橡胶止水带,该种产品结构使用寿命相对较低,防水性较差,在使用过程中杂物容易堆积到V形橡胶止水带上,需要人员维护清理,否则影响桥梁伸缩缝的伸缩效果,因此需要一种便于安装的防漏耐用橡胶止水带

Benefits of technology

[0011]与现有技术相比,本实用新型的有益效果如下:整体结构相对稳定可靠,耐久性好,使用寿命较高,且设有多凸齿结构,聚胶粘接性较好,另一方面防止杂物堆积到伸缩缝内侧,保证桥梁伸缩缝的正常伸缩,且无需人工维护。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a durable leakproof rubber waterstop convenient to install, including rubber strip main part, the deformation cavity is opened in rubber strip main part, the upside of rubber strip main part is equipped with at least one V -shaped groove, the opposite position of the downside of rubber strip main part is equipped with V -shaped convex in each V -shaped groove, the deformation cavity is located between each V -shaped groove and the V -shaped convex opposite with it and is equipped with longitudinal reinforcing rib, the lateral wall of longitudinal reinforcing rib is equipped with horizontal reinforcing rib, the both sides of rubber strip main part are equipped with a plurality of teeth, rubber strip main part, V -shaped groove, V -shaped convex, longitudinal reinforcing rib, horizontal reinforcing rib and tooth are integrated. The utility model has the advantages of following: the overall structure is relatively stable and reliable, and the durability is good, and the service life is higher, and is equipped with the multi-tooth structure, and the poly glue adhesion is better, prevents sundries from accumulating to the expansion joint inside on the other hand, guarantees the normal expansion of bridge expansion joint, and does not need manual maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of bridge structural components, specifically a leak-proof and durable rubber waterstop that is easy to install. Background Technology

[0002] Expansion joints are crucial structures in bridges, roads, and buildings designed to accommodate structural deformation caused by temperature changes, concrete shrinkage and creep, and loads. Expansion joint rubber strips, also known as waterstops or sealing strips, are the core components ensuring the expansion joints are waterproof and prevent the intrusion of debris.

[0003] Currently, the market commonly uses single V-shaped rubber waterstops. This type of product has a relatively short service life and poor waterproofing. During use, debris easily accumulates on the V-shaped rubber waterstop, requiring maintenance and cleaning. Otherwise, it will affect the expansion and contraction effect of bridge expansion joints. Therefore, there is a need for a leak-proof and durable rubber waterstop that is easy to install. Utility Model Content

[0004] The purpose of this utility model is to provide an easy-to-install leak-proof and durable rubber waterstop with a relatively stable and reliable overall structure, good durability, and long service life. It is equipped with a multi-tooth structure, which has good adhesive properties and anti-slip ability. On the one hand, it prevents rainwater and sewage from flowing down, and on the other hand, it prevents debris from accumulating inside the expansion joint, ensuring the normal expansion and contraction of the bridge expansion joint, and requires no manual maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof and durable rubber waterstop that is easy to install, comprising a rubber strip body, wherein a deformation cavity is formed inside the rubber strip body, at least one V-shaped groove is provided on the upper side of the rubber strip body, and a V-shaped protrusion is provided on the lower side of the rubber strip body at the opposite position of each V-shaped groove. A longitudinal reinforcing rib is provided in the deformation cavity between each V-shaped groove and its opposite V-shaped protrusion. A transverse reinforcing rib is provided on the sidewall of the longitudinal reinforcing rib. Multiple protruding teeth are provided on both sides of the rubber strip body. The rubber strip body, V-shaped groove, V-shaped protrusion, longitudinal reinforcing rib, transverse reinforcing rib, and protruding teeth are integrated into one unit.

[0006] Furthermore, there are multiple transverse reinforcing ribs, and these multiple transverse reinforcing ribs are evenly distributed on both sides of the longitudinal reinforcing ribs.

[0007] Furthermore, the transverse reinforcing ribs on both sides of the longitudinal reinforcing rib are arranged in a V-shape.

[0008] Furthermore, one end of the transverse reinforcing rib is connected to the longitudinal reinforcing rib, and the other end of the transverse reinforcing rib is connected to the rubber strip body or the longitudinal reinforcing rib.

[0009] Furthermore, the plurality of the protruding teeth are distributed in a linear array on the rubber strip body.

[0010] Furthermore, the protruding teeth are inclined upwards on the rubber strip body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the overall structure is relatively stable and reliable, with good durability and a long service life. It also has a multi-tooth structure, which has good adhesive properties. On the other hand, it prevents debris from accumulating inside the expansion joint, ensuring the normal expansion and contraction of the bridge expansion joint, and requires no manual maintenance. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the present utility model.

[0013] Figure 2 This is a schematic diagram of the first form of this utility model in use.

[0014] Figure 3 This is a sectional view of the present utility model.

[0015] Figure 4 This is a sectional view of the present utility model.

[0016] In the diagram: 1. Rubber strip body; 101. Deformation cavity; 2. V-shaped groove; 3. V-shaped protrusion; 4. Longitudinal reinforcing rib; 5. Transverse reinforcing rib; 6. Protruding teeth. Detailed Implementation

[0017] 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.

[0018] Example:

[0019] Please see Figure 1-2 A leak-proof and durable rubber waterstop that is easy to install includes a rubber strip body 1, a deformation cavity 101 inside the rubber strip body 1, at least one V-shaped groove 2 on the upper side of the rubber strip body 1, and a V-shaped protrusion 3 on the lower side of the rubber strip body 1 at the opposite position of each V-shaped groove 2. A longitudinal reinforcing rib 4 is provided in the deformation cavity 101 between each V-shaped groove 2 and its opposite V-shaped protrusion 3. A transverse reinforcing rib 5 is provided on the side wall of the longitudinal reinforcing rib 4. Multiple protruding teeth 6 are provided on both sides of the rubber strip body 1. The rubber strip body 1, V-shaped groove 2, V-shaped protrusion 3, longitudinal reinforcing rib 4, transverse reinforcing rib 5, and protruding teeth 6 are integrated into one unit.

[0020] There are multiple transverse reinforcing ribs 5 set on both sides of the longitudinal reinforcing rib 4, and the transverse reinforcing ribs 5 on both sides of the longitudinal reinforcing rib 4 are set in a V shape. One end of the transverse reinforcing rib 5 is connected to the longitudinal reinforcing rib 4, and the other end of the transverse reinforcing rib 5 is connected to the rubber strip body 1 or the longitudinal reinforcing rib 4. With the above structure, when the rubber strip body 1 is used, it adopts a combination structure of alternating transverse and longitudinal V-shapes and uses EPDM rubber. Under tension and compression, the overall structure has a long service life and good elasticity.

[0021] The protruding teeth 6 are inclined upwards on the rubber strip body 1. During installation, refer to... Figure 2 First, epoxy resin mortar is used to fill the gaps in the U-shaped steel on both sides of the bridge joint. After the epoxy resin mortar has cured into an epoxy resin mortar layer, epoxy adhesive is applied to both sides of the rubber strip body 1. The rubber strip body 1 is then installed between the two U-shaped steels at the bridge joint. At this time, the rubber strip body 1 is in a compressed state, and the protrusions 6 will be tightly attached to the epoxy resin mortar and the side wall of the U-shaped steel. Multiple protrusions 6 are linearly arrayed on the rubber strip body 1. The multiple protrusions 6 structure has good adhesive properties, which on the one hand prevents rainwater and sewage from flowing down, and on the other hand prevents debris from accumulating inside the expansion joint, ensuring the normal expansion and contraction of the bridge expansion joint, and requiring no manual maintenance.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof and durable rubber waterstop that is easy to install, characterized in that: The rubber strip body (1) includes a deformable cavity (101) inside the rubber strip body (1). At least one V-shaped groove (2) is provided on the upper side of the rubber strip body (1). A V-shaped protrusion (3) is provided on the lower side of the rubber strip body (1) at the opposite position of each V-shaped groove (2). A longitudinal reinforcing rib (4) is provided in the deformable cavity (101) between each V-shaped groove (2) and the V-shaped protrusion (3) opposite to it. A transverse reinforcing rib (5) is provided on the side wall of the longitudinal reinforcing rib (4). Multiple protruding teeth (6) are provided on both sides of the rubber strip body (1). The rubber strip body (1), V-shaped groove (2), V-shaped protrusion (3), longitudinal reinforcing rib (4), transverse reinforcing rib (5) and protruding teeth (6) are integrated.

2. The easy-to-install, leak-proof, durable rubber waterstop according to claim 1, characterized in that: There are multiple transverse reinforcing ribs (5), and the multiple transverse reinforcing ribs (5) are evenly distributed on both sides of the longitudinal reinforcing rib (4).

3. The easy-to-install, leak-proof, durable rubber waterstop according to claim 2, characterized in that: The transverse reinforcing ribs (5) on both sides of the longitudinal reinforcing rib (4) are arranged in a V-shape.

4. The easy-to-install, leak-proof, durable rubber waterstop according to claim 1, characterized in that: One end of the transverse reinforcing rib (5) is connected to the longitudinal reinforcing rib (4), and the other end of the transverse reinforcing rib (5) is connected to the rubber strip body (1) or the longitudinal reinforcing rib (4).

5. The easy-to-install, leak-proof, durable rubber waterstop according to claim 1, characterized in that: Multiple of the protruding teeth (6) are arranged in a linear array on the rubber strip body (1).

6. The easy-to-install, leak-proof, durable rubber waterstop according to claim 5, characterized in that: The protruding teeth (6) are inclined upward on the rubber strip body (1).

7. The easy-to-install, leak-proof, durable rubber waterstop according to claim 5, characterized in that: The main body (1), V-shaped groove (2), V-shaped protrusion (3), longitudinal reinforcing rib (4), transverse reinforcing rib (5) and protruding tooth (6) of the rubber strip are made of EPDM rubber.