GXJ rubber waterstop underground continuous wall structure

By using a combination of extrusion plates, drive plates, and ball screws in the underground continuous wall structure with GXJ rubber waterstops, the problem of bending of the waterstops during cement pouring was solved, and the waterproof performance was improved.

CN224678752UActive Publication Date: 2026-08-25CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +1
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Patent Information

Application Number
CN202522060338.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-08-25
Estimated Expiration
2035-09-25

AI Technical Summary

Technical Problem

The existing GXJ rubber waterstop is prone to bending during the cement pouring process in underground continuous wall structures, which affects its waterproof performance.

Method used

It adopts a combination structure of multiple extrusion plates, drive plates, ball screws and L-shaped grooves. The drive mechanism makes the extrusion plates move closer and further apart to ensure the waterstop unfolds and avoids bending.

Benefits of technology

It improves the waterproofing effect at the connection points of the underground continuous wall, ensures that the waterstop remains flat during the cement pouring process, and enhances the water-stopping effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a GXJ rubber waterstop underground continuous wall structure, including two reinforcement cages, two reinforcement cages junctions have waterstop body, two reinforcement cages both ends all are provided with square tube, two square tubes one side close to each other is provided with a plurality of extruded plates, waterstop setting is between a plurality of extruded plates, be provided with drive mechanism between extruded plate and square tube, drive mechanism drives the close to each other and remove of a plurality of extruded plates, the utility model discloses the top end and bottom end of a square tube both slidingly installed two extruded plates, two extruded plates as a group, are driven by drive mechanism, and the waterstop body is clamped, when building underground continuous wall, before pouring cement, through the extruded plate to the waterstop body clamping and pulling, make the waterstop completely unfold, avoid the waterstop bending, improve the waterproof effect of continuous wall connecting point.
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Description

Technical Field

[0001] This utility model relates to the field of diaphragm wall technology, and in particular to a GXJ rubber waterstop diaphragm wall structure. Background Technology

[0002] With the continuous development of urbanization, the number of underground space development and utilization projects is increasing. In water-rich areas, diaphragm wall retaining structures are commonly used for foundation pits with excavation depths exceeding 10 meters. The water-stopping effect of the retaining structure, especially the effectiveness of water-stopping at the joints of the wall sections, is closely related to the safety of the foundation pit. There are three main types of diaphragm wall joints commonly used in the market: steel joints, interlocking pipe joints, and GXJ rubber waterstop joints. Among them, the GXJ rubber waterstop joint has quietly developed in Shanghai, Nanjing, and other places due to its good economic efficiency and water-stopping effect, and its excellent performance has been proven in numerous engineering examples.

[0003] In existing diaphragm wall structures using GXJ rubber waterstops, the waterstops are fixed in place using joint boxes before cement pouring, ultimately bonding the waterstops to the edge of the diaphragm wall. However, the joint boxes only secure the side of the waterstop that hasn't been poured; the waterstop in the cement-poured area remains unsecured. Furthermore, the waterstop itself tends to bend to some extent, resulting in insufficient flatness within the cement wall and affecting the waterproofing performance at the diaphragm wall connection points. Utility Model Content

[0004] The purpose of this invention is to provide a GXJ rubber waterstop underground continuous wall structure to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a GXJ rubber waterstop underground continuous wall structure, comprising two reinforcing cages, a waterstop body at the connection between the two reinforcing cages, square tubes at both ends of the two reinforcing cages, multiple extrusion plates on the side of the two square tubes that are close to each other, the waterstop being disposed between the multiple extrusion plates, and a driving mechanism being disposed between the extrusion plates and the square tubes, the driving mechanism driving the multiple extrusion plates to move closer to each other.

[0006] As a further description of the above technical solution: the driving mechanism includes two driving plates, and inclined grooves are symmetrically opened on the two driving plates. The extrusion plate slides in cooperation with the inclined grooves, and a moving component is arranged between the two driving plates.

[0007] As a further description of the above technical solution: the moving component includes a ball screw, both ends of which are threaded with threaded rings. One end of the threaded ring is slidably connected to the square tube, and the other end of the threaded ring is fixedly connected to the drive plate. A rotary joint is fixedly connected to the top of the ball screw, and the rotary joint is rotatably mounted on the top of the square tube.

[0008] As a further description of the above technical solution: an L-shaped groove is provided on the side wall of the square tube, and the extrusion plate is disposed inside the L-shaped groove.

[0009] As a further description of the above technical solution: multiple anti-slip protrusions are provided on the side walls of the extrusion plates that are close to each other.

[0010] As a further description of the above technical solution: one end of the rib cage is configured as a concave shape, and the other end of the rib cage is configured as a convex shape, and the two ends of the rib cage are adapted to each other.

[0011] This utility model provides a GXJ rubber waterstop underground continuous wall structure. It has the following beneficial effects: This device, through the cooperation of multiple extrusion plates, drive plates, ball screws, and L-shaped grooves, achieves the extrusion plates first extruding both ends of the waterstop body, and then pulling the waterstop body, ensuring that the waterstop body is fully unfolded, preventing the waterstop from bending, and improving the waterproofing effect at the continuous wall connection points.

[0012] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0013] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a GXJ rubber waterstop underground continuous wall structure proposed in this utility model; Figure 2 This is a three-dimensional structural diagram of the square tube of this utility model; Figure 3 This is a three-dimensional cross-sectional structural diagram of the square tube of this utility model; Figure 4 This is a three-dimensional structural diagram of the square tube, drive plate, and extrusion plate of this utility model.

[0015] Legend: 1. Rib cage; 2. Waterstop body; 3. Square tube; 4. Extrusion plate; 5. Drive plate; 6. Inclined groove; 7. Ball screw; 8. Threaded ring; 9. Rotary joint; 10. L-shaped slide groove; 11. Anti-slip protrusion. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 A GXJ rubber waterstop underground continuous wall structure includes two reinforcing cages 1, with a waterstop body 2 at the connection between the two reinforcing cages 1. Square tubes 3 are provided at both ends of the two reinforcing cages 1. Multiple extrusion plates 4 are provided on the side of the two square tubes 3 that are close to each other. The waterstop is positioned between the multiple extrusion plates 4. A driving mechanism is provided between the extrusion plates 4 and the square tubes 3, driving the multiple extrusion plates 4 to move closer together. Two extrusion plates 4 are slidably installed at the top and bottom of each square tube 3. The two extrusion plates 4 form a group and are driven by the driving mechanism to clamp the waterstop body 2. During the construction of the underground continuous wall, before cement is poured, the waterstop body 2 is clamped and pulled by the extrusion plates 4, allowing the waterstop to fully unfold, preventing bending, and improving the waterproofing effect at the connection point of the continuous wall.

[0018] As a preferred embodiment, the driving mechanism includes two driving plates 5, with symmetrically arranged inclined grooves 6 on the two driving plates 5. The extrusion plate 4 is slidably engaged with the inclined grooves 6, and a moving component is provided between the two driving plates 5. The two driving plates 5 are respectively located at both ends of the square tube 3, and the two driving plates 5 are symmetrically arranged. The end of the extrusion plate 4 penetrates the side wall of the square tube 3 and is slidably engaged with the inclined grooves 6 on the driving plate 5. When the underground continuous wall is constructed, when the waterstop body 2 is placed between multiple extrusion plates 4, the driving mechanism drives the driving plates 5 to move. The movement of the driving plates 5 drives the two extrusion plates 4 to move closer to each other. After the two extrusion plates 4 have squeezed and clamped the waterstop body 2, the moving component drives the two driving plates 5 to continue to move away from each other, so that the waterstop body 2 is fully unfolded.

[0019] As a preferred technical solution in this embodiment, the moving component includes a ball screw 7, with threaded rings 8 threaded to both ends of the ball screw 7. One end of the threaded ring 8 is slidably connected to the square tube 3, and the other end of the threaded ring 8 is fixedly connected to the drive plate 5. A rotary joint 9 is fixedly connected to the top of the ball screw 7, and the rotary joint 9 is rotatably installed on the top of the square tube 3. During the construction of the underground wall, the two drive plates 5 are moved by rotating the ball screw 7. The movement of the drive plates 5 causes the two extrusion plates 4 to move closer to each other. When the two extrusion plates 4 completely clamp the waterstop body 2, the ball screw 7 rotates, which will cause the two drive plates 5 at both ends to move away from each other, ensuring that the waterstop body 2 is in a fully unfolded state.

[0020] As a preferred technical solution of this embodiment, an L-shaped groove 10 is provided on the side wall of the square tube 3, and the extrusion plate 4 is disposed inside the L-shaped groove 10. When the drive plate 5 initially moves, it drives the two extrusion plates 4 to move closer to each other. The bottom horizontal groove of the L-shaped groove 10 limits the extrusion plate 4 laterally. At this time, during the lifting and lowering process of the drive plate 5, it drives the two extrusion plates 4 to move closer to each other laterally, and finally clamps the waterstop body 2. At this time, the connecting rod of the extrusion plate 4 slides to the right angle of the L-shaped groove 10, and at the same time, the edge of the inclined groove 6 of the drive plate 5 contacts the connecting rod of the extrusion plate 4. When the drive plate 5 moves again, it drives the two extrusion plates 4 at both ends to move away from each other, and stretches the waterstop body 2.

[0021] As a preferred technical solution in this embodiment, a plurality of anti-slip protrusions 11 are provided on the side walls of the extrusion plates 4 that are close to each other; the anti-slip protrusions 11 increase the friction between the extrusion plates 4 and the waterstop body 2.

[0022] As a preferred technical solution in this embodiment, one end of the reinforcing cage 1 is set to be concave, and the other end of the reinforcing cage 1 is set to be convex, and the two ends of the reinforcing cage 1 are adapted to each other; during the construction of the diaphragm wall, multiple reinforcing cages 1 that are adapted to each other at the beginning and end are assembled into a diaphragm wall with good tightness.

[0023] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A GXJ rubber waterstop underground continuous wall structure, comprising two reinforcing cages (1), characterized in that: A waterstop body (2) is provided at the connection between the two reinforcing cages (1). A square tube (3) is provided at both ends of the two reinforcing cages (1). Multiple extrusion plates (4) are provided on the side of the two square tubes (3) that are close to each other. The waterstop is provided between the multiple extrusion plates (4). A driving mechanism is provided between the extrusion plates (4) and the square tubes (3). The driving mechanism drives the multiple extrusion plates (4) to move closer to each other.

2. The underground continuous wall structure with GXJ rubber waterstop as described in claim 1, characterized in that, The driving mechanism includes two driving plates (5), and inclined grooves (6) are symmetrically opened on the two driving plates (5). The extrusion plate (4) is slidably engaged with the inclined grooves (6), and a moving component is provided between the two driving plates (5).

3. The underground continuous wall structure with GXJ rubber waterstop as described in claim 2, characterized in that, The moving component includes a ball screw (7), with threaded rings (8) threaded to both ends of the ball screw (7). One end of the threaded ring (8) is slidably connected to the square tube (3), and the other end of the threaded ring (8) is fixedly connected to the drive plate (5). A rotating joint (9) is fixedly connected to the top of the ball screw (7), and the rotating joint (9) is rotatably mounted on the top of the square tube (3).

4. A GXJ rubber waterstop underground continuous wall structure according to claim 2, characterized in that, The square tube (3) has an L-shaped groove (10) on its side wall, and the extrusion plate (4) is disposed inside the L-shaped groove (10).

5. A GXJ rubber waterstop underground continuous wall structure according to claim 4, characterized in that, The extrusion plates (4) have multiple anti-slip protrusions (11) on their adjacent sidewalls.

6. A GXJ rubber waterstop underground continuous wall structure according to claim 4, characterized in that, One end of the rib cage (1) is set to be concave, and the other end of the rib cage (1) is set to be convex. The two ends of the rib cage (1) are adapted to each other.