Adjustable steel edge self-adhesive rubber waterstop

By combining a stretchable steel edge structure with a self-adhesive rubber layer, the problems of traditional waterstops being unadjustable and prone to leakage are solved, achieving both adjustability and high-efficiency sealing, making it suitable for waterproofing building joints under complex working conditions.

CN224351424UActive Publication Date: 2026-06-12HENGSHUI GUANGHUI RUBBER & PLASTIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENGSHUI GUANGHUI RUBBER & PLASTIC
Filing Date
2025-05-09
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing steel-edged self-adhesive rubber waterstops have fixed steel edge width and mounting hole positions that cannot be adjusted. Waterproofing is achieved only by tightening the steel edge to the base surface with bolts, and the lack of a self-adhesive auxiliary layer leads to inefficient installation and easy leakage.

Method used

It adopts a retractable steel edge structure, and the slide rail groove and bolts are used to achieve length adjustment. Multiple rows of spaced mounting holes enhance the fixing flexibility. The galvanized sheet is bonded to the rubber, and the self-adhesive rubber layer improves the sealing performance.

Benefits of technology

It achieves the adjustability of the waterstop, enhances the flexibility and sealing of construction, improves construction efficiency, and is particularly suitable for waterproofing projects of building joints under complex working conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of adjustable steel edge self-adhesive rubber waterstop, including intermediate rubber matrix, symmetrical setting in the extensible steel edge structure of rubber matrix two sides, the extensible steel edge structure is composed of fixed section and sliding section;The sliding section inside is equipped with slide rail groove, fixed section is equipped with the guide boss matched with slide rail groove;The fixed section surface is equipped with single-row fixed mounting hole, and the sliding section is equipped with multiple-row interval type mounting hole along length direction;The rubber matrix surface is equipped with self-adhesive rubber layer.The utility model discloses a kind of adjustable steel edge self-adhesive rubber waterstop in extensible steel edge structure, length adjustment is realized by slide rail groove and bolt, solve the defect that traditional waterstop is not adjustable;Multiple-row interval type mounting hole: enhance fixed flexibility, adapt to construction error;Galvanized steel sheet and rubber bonding: ensure material durability and anchoring force with concrete;Self-adhesive rubber layer improves construction efficiency and sealing property.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically to an adjustable steel-edged self-adhesive rubber waterstop. Background Technology

[0002] The existing technology describing traditional steel-edged self-adhesive rubber waterstops (such as patent 201420402409.1) uses a composite structure of steel plate and rubber. The existing technology has the following key problems: 1. Fixed steel edge: The width of the steel edges on both sides and the position of the mounting holes are fixed and cannot be adjusted. 2. Single mounting hole: Only a single row of mounting holes is provided, limiting the fixing position. 3. Waterproofing is achieved solely by bolting the steel edge to the base surface, without a self-adhesive auxiliary layer.

[0003] Therefore, how to provide an adjustable steel-edged self-adhesive rubber waterstop using an adjustable steel edge structure, multiple rows of staggered mounting holes, and a self-adhesive-mechanical dual sealing system is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides an adjustable steel-edged self-adhesive rubber waterstop.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable steel-edged self-adhesive rubber waterstop includes a central rubber substrate and retractable steel edge structures symmetrically arranged on both sides of the rubber substrate. The retractable steel edge structures consist of a fixed section and a sliding section. The sliding section has a slide rail groove on its inner side, and the fixed section has guide protrusions that match the slide rail groove. The fixed section has a single row of fixing holes on its surface, and the sliding section has multiple rows of spaced-apart mounting holes along its length. The rubber substrate has a self-adhesive rubber layer on its surface.

[0007] Preferably, one end of the fixed section of the retractable steel edge structure is embedded in the rubber matrix and vulcanized with the rubber matrix.

[0008] Preferably, the retractable steel edge structure is made of galvanized steel sheet.

[0009] Preferably, the rubber matrix is ​​made of neoprene rubber.

[0010] Preferably, multiple waterproof ribs are arranged side by side between the deformation zone in the middle of the rubber matrix and the stretchable steel edge structure.

[0011] Preferably, the self-adhesive rubber layer is made of butyl rubber.

[0012] As can be seen from the above technical solution, compared with the prior art, the adjustable steel edge structure of the self-adhesive rubber waterstop disclosed in this utility model achieves length adjustment through the sliding rail groove and bolts, solving the defect of traditional waterstops being non-adjustable; multiple rows of spaced installation holes enhance fixing flexibility and adapt to construction errors; galvanized steel plate and rubber bonding ensure material durability and anchoring force with concrete; the self-adhesive rubber layer improves construction efficiency and sealing performance; it achieves a fundamental breakthrough over the traditional waterstops' "non-adjustable, inefficient installation, and easy leakage", and is particularly suitable for waterproofing projects of building joints under complex working conditions. Attached Figure Description

[0013] 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.

[0014] Fig. 1 The attached figure is a schematic diagram of the cross-sectional structure of the adjustable steel-edged self-adhesive rubber waterstop of this utility model.

[0015] Fig. 2 The attached figure is a top view of a portion of the retractable steel edge structure of the adjustable steel-edged self-adhesive rubber waterstop of this utility model.

[0016] Fig. 3 The attached figure is a three-dimensional structural diagram of a portion of the retractable steel edge structure of the adjustable steel-edged self-adhesive rubber waterstop of this utility model. 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] like Figs. 1-3The present invention discloses an adjustable steel-edged self-adhesive rubber waterstop, comprising a central rubber substrate 10 and retractable steel edge structures 20 symmetrically arranged on both sides of the rubber substrate 10. The retractable steel edge structure 20 consists of a fixed section 21 and a sliding section 22. The sliding section 22 has a slide rail groove 221 on its inner side, and the fixed section 21 has guide protrusions 211 that match the slide rail groove 221. The surface of the fixed section 21 has a single row of fixing holes 212, and the sliding section 22 has multiple rows of spaced mounting holes 222 along its length. The surface of the rubber substrate 10 is provided with a self-adhesive rubber layer.

[0019] The rubber matrix 10 has a deformable zone with a through hole in its center, and a retractable steel edge structure 20 is connected to each of its two sides. One end of the fixed section 21 of the retractable steel edge structure 20 is embedded in the rubber matrix 10 and vulcanized with the rubber matrix, while the other end has several parallel guide protrusions 211. The sliding section 22 of the retractable steel edge structure 20 is provided with a slide rail groove 221 corresponding to the guide protrusions 211 of the fixed section 21. The guide protrusions 211 and the slide rail grooves 221 are fitted with a clearance fit.

[0020] Furthermore, the retractable steel edge structure is made of galvanized steel sheet. Galvanization reduces corrosion and ensures the reliability of the connection between the retractable steel edge structure and the concrete.

[0021] Furthermore, the surface of the fixed section 21 is provided with a single row of fixed mounting holes 212, corresponding to the multiple rows of spaced mounting holes 222 provided along the length of the sliding section 22. Bolts and matching nuts that penetrate the fixed section 21 and the sliding section 22 are used to fix the waterstop, thereby realizing the dual adjustment function of the width and fixed position of the waterstop.

[0022] Specifically, during use, place the adjustable steel-edged self-adhesive rubber waterstop at the construction joint. Based on the actual width of the joint (measured value ± construction error), pull the sliding section 22 outwards, ensuring symmetrical adjustment of both sliding sections 22 with a deviation ≤ 5mm. Observe the distribution of reinforcing steel bars on site, avoiding the positions of the reinforcing steel bars, and select suitable mounting holes. Specifically, use bolts and matching nuts to tighten the nuts sequentially according to the single row of fixing mounting holes on the surface of the fixing section 21 and the multi-row spaced mounting holes of the sliding section 22.

[0023] Furthermore, to meet the physical and mechanical performance requirements of the rubber matrix 10 and ensure its reliability in preventing water leakage, in this embodiment, the rubber matrix 10 is made of neoprene rubber. To enhance the water-blocking effect, multiple waterproof ribs are arranged side-by-side between the deformable zone in the middle of the rubber matrix 10 and the expandable steel edge structure 20, and the waterproof ribs are integrally formed with the rubber matrix 10. The waterproof ribs all protrude from the upper and lower surfaces of the rubber matrix 10, which can form a good water-stop seal with the concrete.

[0024] Furthermore, the self-adhesive rubber layer has a thickness of 1.0 mm, is made of butyl rubber, and is covered with a PET protective film. In use, remove the protective film from the self-adhesive rubber layer, press the waterstop onto the concrete substrate, adhere it to the polished concrete surface, and reinforce it with expansion bolts.

[0025] This utility model discloses an adjustable steel-edged self-adhesive rubber waterstop. The extendable steel edge structure achieves length adjustment via a sliding rail groove and bolts, overcoming the limitation of traditional waterstops being non-adjustable. Multiple rows of spaced installation holes enhance fixing flexibility and accommodate construction errors. The bonding of galvanized steel plate to rubber ensures material durability and anchoring force with concrete. The self-adhesive rubber layer improves construction efficiency and sealing performance. This represents a fundamental breakthrough over traditional waterstops, which are characterized by being non-adjustable, inefficiently installed, and prone to leakage. It is particularly suitable for waterproofing building joints under complex conditions.

[0026] 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. An adjustable steel-edged self-adhesive rubber waterstop, characterized in that, include: The rubber substrate (10) in the middle and the retractable steel edge structure (20) symmetrically arranged on both sides of the rubber substrate (10) are composed of a fixed section (21) and a sliding section (22). The sliding section (22) is provided with a slide rail groove (221) on the inner side, and the fixed section (21) is provided with a guide protrusion (211) that matches the slide rail groove (221). The surface of the fixed section (21) is provided with a single row of fixed mounting holes (212), and the sliding section (22) is provided with multiple rows of spaced mounting holes (222) along the length direction. The surface of the rubber substrate (10) is provided with a self-adhesive rubber layer.

2. The adjustable steel-edged self-adhesive rubber waterstop according to claim 1, characterized in that, The inner end of the fixed section (21) of the retractable steel edge structure (20) is embedded in the rubber matrix (10) and vulcanized with the rubber matrix (10).

3. The adjustable steel-edged self-adhesive rubber waterstop according to claim 2, characterized in that, The retractable steel edge structure (20) is made of galvanized steel sheet.

4. The adjustable steel-edged self-adhesive rubber waterstop according to claim 1, characterized in that, The rubber matrix (10) is made of chloroprene rubber material.

5. The adjustable steel-edged self-adhesive rubber waterstop according to claim 1, characterized in that, Multiple waterproof ribs are arranged side by side between the deformation zone in the middle of the rubber matrix (10) and the stretchable steel edge structure (20).

6. The adjustable steel-edged self-adhesive rubber waterstop according to claim 1, characterized in that, The self-adhesive rubber layer is made of butyl rubber.