Three-section water-stop screw for basement outer wall

By incorporating rubber conical blocks and pentagonal prisms into the three-section water-stop screw, the design utilizes elastic deformation to achieve separation from the concrete, solving the problem of difficult disassembly in existing technologies and improving disassembly efficiency.

CN224495808UActive Publication Date: 2026-07-14SHENZHEN SHI BANG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SHI BANG TECH CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

When disassembling existing basement exterior walls using three-section water-stop bolts, the tapered nuts adhere to the hardened concrete and are difficult to separate, making disassembly challenging.

Method used

A three-section water-stop screw rod, comprising an inner rod, a connecting component, and an outer rod, was designed. The connecting component includes a rubber conical block and a pentagonal prism. By setting a sliding groove, a spring, and a filling block, the elastic deformation of the rubber conical block is used to achieve separation from the concrete, facilitating disassembly.

Benefits of technology

After the concrete has hardened, the rubber cone block deforms and detaches from the concrete by pulling out the filler block and the action of the spring, which simplifies the disassembly process of the outer rod and the inner rod and improves the disassembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to water stop screw technical field, concretely is a three -segment type water stop screw for basement outer wall, including inner rod, connecting assembly and outer rod, the outer wall of inner rod is fixed with the water stop board in the middle position, the both ends of inner rod all are provided with screw threads, connecting assembly and outer rod all are provided with two groups and are located the both ends of inner rod, this three -segment type water stop screw for basement outer wall is through setting connecting assembly, wherein the rubber taper block has elasticity, realizes the inboard pull deformation under the spring effect of sliding groove, fills the sliding groove through the filler block when pouring, avoids the deformation of spring pulling rubber taper block, pulls out the filler block after the completion of concrete pouring and solidification, the deformation of rubber taper block under the inboard pull of spring makes rubber taper block partial outside wall separate from concrete, reduces the adhesion, and the rotation of outer rod and rubber taper block is convenient to separate from inner rod, makes the disassembly of outer rod more convenient and fast.
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Description

Technical Field

[0001] This utility model relates to the field of water-stop screw technology, specifically a three-section water-stop screw for basement exterior walls. Background Technology

[0002] With the continuous development of the construction industry, the market demand for three-section water-stop tie rods is showing an increasing trend. On the one hand, the waterproofing requirements of construction projects are getting higher and higher, and the water-stopping and waterproofing functions of three-section water-stop tie rods have been widely recognized. On the other hand, they can fix the formwork and prevent the formwork from bursting during concrete pouring, thus improving construction quality and efficiency. Three-section water-stop tie rods are widely used in waterproofing projects such as basements and underground garages. These underground buildings have extremely high waterproofing requirements. Three-section water-stop tie rods can fix the formwork and prevent the formwork from bursting during concrete pouring, while effectively preventing groundwater seepage through the water-stop plate.

[0003] The three-section water-stop tie rod used on the exterior wall of the basement mainly consists of an inner rod, an outer rod, and a connecting nut. In some three-section water-stop tie rods, one end of the inner rod may be equipped with a tapered nut. This tapered nut design can make the connection between the inner rod and the formwork tighter and more stable. However, after the concrete is poured and formed, the tapered nut will be firmly attached to the solidified concrete, making it difficult to disassemble it from the outer rod without damaging the wall. To address the above problems, this application designs a three-section water-stop tie rod for the exterior wall of the basement. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a three-section water-stop bolt for basement exterior walls.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a three-section water-stop bolt for basement exterior walls, comprising an inner rod, a connecting assembly, and an outer rod. A water-stop plate is fixed to the middle position of the outer wall of the inner rod. Both ends of the inner rod are threaded. Two sets of connecting assemblies are provided on both ends of the inner rod and on the outer rod. The connecting assembly is located at one end of the outer rod, and the other end of the outer rod is threaded. An internal thread is provided on the outer rod at one end of the connecting assembly and is threaded to the inner rod. Five sections are set on the outer rod at the position of the connecting assembly. The pentagonal prism includes a connecting component comprising a rubber conical block fitted and fixed to the pentagonal prism. The rubber conical block has five sliding grooves evenly distributed and corresponding to the five sidewalls of the pentagonal prism. A metal plate is fixed to the inner wall of each sliding groove near its outer edge. Multiple springs of different heights are fixed between the metal plate and the pentagonal prism. A suitable filling block is slidably connected within the sliding groove. An open groove is provided in the center of each filling block, the width of which is greater than the diameter of the spring.

[0008] To reduce the shaking of the filling block and facilitate the rotation of the rubber cone block driven by the pentagonal prism, thereby reducing the deformation of the rubber cone block, this utility model is improved by providing limit strips on all five side walls of the pentagonal prism and providing a limit groove at the bottom of the filling block that is adapted to and slidably connected to the limit strips.

[0009] To improve the connection and fixation between the rubber cone block and the outer rod, this utility model is improved by uniformly fixing multiple locking blocks on the outer wall of the outer rod near the waterstop plate, and inserting the locking blocks into the rubber cone block.

[0010] To facilitate pulling the filling block, the present invention is improved by providing a pulling groove at the outer end of the filling block.

[0011] To improve the stability of the inner rod and the waterstop plate in concrete, this utility model is improved by uniformly fixing multiple positioning blocks on both outer walls of the waterstop plate.

[0012] To prevent the filler block from being squeezed out of the sliding groove, the present invention is improved by providing anti-slip textures on both sides of the filler block and having them in contact with the inner wall of the sliding groove.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a three-section water-stop bolt for basement exterior walls, which has the following beneficial effects:

[0015] The basement exterior wall uses a three-section water-stop bolt system. A connecting assembly is installed, in which a rubber cone-shaped block, being elastic, deforms inward under the action of a spring in the sliding groove. During pouring, a filler block fills the sliding groove to prevent the spring from pulling the rubber cone-shaped block and causing deformation. After the concrete pouring and solidification, the filler block is pulled out, and the rubber cone-shaped block deforms under the inward pull of the spring, causing part of the outer wall of the rubber cone-shaped block to detach from the concrete, reducing adhesion and facilitating the rotation of the outer rod and the rubber cone-shaped block away from the inner rod, making the disassembly of the outer rod more convenient and quick. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first main view structure of this utility model;

[0017] Figure 2 This is a first partial structural schematic diagram of the present invention in cross-section;

[0018] Figure 3 This is an enlarged structural diagram of point A in the first main view of this utility model;

[0019] Figure 4 This is a schematic diagram of the second partial structure of the present invention.

[0020] In the diagram: 1. Inner rod; 2. Connecting assembly; 3. Outer rod; 4. Waterstop plate; 5. Pentagonal prism; 6. Rubber conical block; 7. Sliding groove; 8. Fitting metal plate; 9. Spring; 10. Filling block; 11. Open groove; 12. Limiting strip; 13. Limiting groove; 14. Locking block; 15. Pulling groove; 16. Positioning block. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4A three-section water-stop bolt for basement exterior walls includes an inner rod 1, a connecting assembly 2, and an outer rod 3. A water-stop plate 4 is fixed to the middle position of the outer wall of the inner rod 1. Both ends of the inner rod 1 are threaded. Two sets of connecting assemblies 2 and outer rods 3 are provided at both ends of the inner rod 1. The connecting assembly 2 is located at one end of the outer rod 3, and the other end of the outer rod 3 is threaded. An internal thread is provided on the outer rod 3 at one end of the connecting assembly 2 and is threaded to the inner rod 1. A pentagonal prism 5 is set on the outer rod 3 at the position of the connecting assembly 2. The connecting assembly 2 includes... The device includes a rubber conical block 6, which is fitted and fixed on the pentagonal prism 5. The rubber conical block 6 has five sliding grooves 7, which are evenly distributed and correspond to the five side walls of the pentagonal prism 5. A metal plate 8 is fixed to the inner wall of the sliding groove 7 near the outer ring. Multiple springs 9 of different heights are fixed between the metal plate 8 and the pentagonal prism 5. A matching filling block 10 is slidably connected in the sliding groove 7. An open groove 11 is provided in the middle of the filling block 10. The width of the open groove 11 is greater than the diameter of the spring 9.

[0023] When using this water-stop screw rod, the installation method is the same as that of the existing mature three-section water-stop screw rod when casting and fixing the mold, so it will not be described in detail. During installation, the filler block 10 is inserted into the sliding groove 7 to support the bonding metal plate 8 and the rubber cone block 6. At this time, the spring 9 is in a stretched state. After the casting is completed and solidified, when it is necessary to disassemble the long rod, first pull the filler block 10 out of the sliding groove 7. At this time, the bonding metal plate 8 and the rubber cone block 6 are no longer supported. The spring 9 pulls the bonding metal plate 8 and part of the rubber cone block 6 to move inward. Since the rubber cone block 6 is made of rubber, the rubber cone block 6 located at the position of the sliding groove 7 deforms inward, so that the outer wall separates from the solidified cement. This quickly reduces the separation of the outer wall of the rubber cone block 6 from the solidified cement and reduces the adhesion force during rotation. At this time, the outer rod 3 is rotated along with the rubber cone block 6, thereby realizing the separation and disassembly of the outer rod 3 and the inner rod 1.

[0024] In actual use, it was found that the outer rod 3 and the pentagonal prism 5 could not drive the rubber cone block to rotate well when they rotated, which easily caused it to deform. In order to alleviate the above problem, in this embodiment, limit strips 12 are provided on the five side walls of the pentagonal prism 5, and the bottom end of the filling block 10 is provided with a limit groove 13 that is adapted to and slidably connected to the limit strips 12.

[0025] In actual use, it was found that in order to improve the connection and fixation between the rubber conical block 6 and the outer rod 3, in this embodiment, a plurality of locking blocks 14 are uniformly fixed on the outer wall of the outer rod 3 near the end of the waterstop plate 4, and the locking blocks 14 are inserted into the rubber conical block 6.

[0026] In actual use, it was found that it was not easy to pull the filling block 10. In order to solve the above problem, in this embodiment, a pulling groove 15 is provided on the outer end of the filling block 10.

[0027] In actual use, it was found that the inner rod 1 and the waterstop plate 4 are in the concrete. After the concrete solidifies, they may shake, causing the gap to widen. In order to avoid the above problems, in this embodiment, multiple positioning blocks 16 are evenly fixed on the outer walls of both sides of the waterstop plate 4.

[0028] In actual use, it was found that the filler block 10 is easily squeezed by the rubber cone block 6 and the concrete and moves out of the sliding groove 7. In order to avoid the above problem, in this embodiment, anti-slip textures are provided on both sides of the filler block 10 and it contacts the inner wall of the sliding groove 7.

[0029] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0030] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0031] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0032] 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 three-section water-stop bolt for basement exterior walls, comprising an inner rod (1), a connecting assembly (2), and an outer rod (3), characterized in that: A waterstop plate (4) is fixed at the middle position on the outer wall of the inner rod (1). Both ends of the inner rod (1) are threaded. Two sets of connecting components (2) and outer rod (3) are provided at both ends of the inner rod (1). The connecting component (2) is provided at one end of the outer rod (3). The other end of the outer rod (3) is threaded. The outer rod (3) is provided with an internal thread at one end of the connecting component (2) and is threaded to the inner rod (1). The outer rod (3) is set as a pentagonal prism (5) at the position of the connecting component (2). The connecting component (2) includes a rubber cone block (6). The rubber cone block (6) The rubber cone block (6) is fitted and fixed on the pentagonal prism (5). Five sliding grooves (7) are opened in the rubber cone block (6). The five sliding grooves (7) are evenly distributed and correspond to the five side walls of the pentagonal prism (5). A metal plate (8) is fixed to the inner wall of the sliding groove (7) near the outer ring. Multiple springs (9) of different heights are fixed between the metal plate (8) and the pentagonal prism (5). A matching filling block (10) is slidably connected in the sliding groove (7). An open groove (11) is provided in the middle of the filling block (10). The width of the open groove (11) is greater than the diameter of the spring (9).

2. The three-section water-stop bolt for basement exterior walls according to claim 1, characterized in that: Limiting strips (12) are provided on each of the five side walls of the pentagonal prism (5), and a limiting groove (13) is provided at the bottom end of the filling block (10) to fit and slide with the limiting strips (12).

3. A three-section water-stop bolt for basement exterior walls according to claim 1, characterized in that: Multiple locking blocks (14) are evenly fixed on the outer wall of the outer rod (3) near the end of the waterstop plate (4), and the locking blocks (14) are inserted into the rubber cone block (6).

4. A three-section water-stop bolt for basement exterior walls according to claim 1, characterized in that: The outer end of the filling block (10) is provided with a pull groove (15).

5. A three-section water-stop bolt for basement exterior walls according to claim 1, characterized in that: Multiple positioning blocks (16) are evenly fixed on both outer walls of the waterstop plate (4).

6. A three-section water-stop bolt for basement exterior walls according to claim 1, characterized in that: The filling block (10) has anti-slip textures on both sides and is in contact with the inner wall of the sliding groove (7).