Buried waterstop clamp for structural waterproof construction
By designing U-shaped clamps and fixing devices to secure the waterstop, the problem of displacement of the embedded waterstop during concrete pouring was solved, achieving stability and straightness of the waterstop, improving the waterproof performance of the building and reducing construction costs.
Patent Information
- Application Number
- CN202520106775.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Embedded waterstops are prone to displacement during concrete pouring, leading to leaks at construction joints or expansion joints, which affects the waterproofing and durability of buildings.
An embedded waterstop clamp for structural waterproofing construction was designed, including a U-shaped clamp and a fixing device. The waterstop is fixed by clamping the structural steel bars, and the clamp distance is adjusted by using support rods and butterfly nuts to ensure the straightness and stability of the waterstop.
It effectively prevents the waterstop from shifting during concrete pouring, ensures the waterproofness of construction joints, improves the durability of buildings, and the material is recyclable, saving costs.
Smart Images

Figure CN223824590U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of structural waterproofing construction technology, specifically relating to an embedded waterstop clamp for structural waterproofing construction. Background Technology
[0002] Waterproofing is a crucial element in various engineering projects. Embedded waterstops, as a highly efficient waterproofing solution, have been widely used in water conservancy, tunnel, and subway construction. However, during concrete pouring, embedded waterstops are prone to displacement, rolling, or twisting due to insecure fixing, which can affect the waterproofing and durability of the building structure. Utility Model Content
[0003] This invention addresses the problem that embedded waterstops can shift during concrete pouring, leading to leaks and seepage at construction joints or expansion joints, which in turn causes the waterproofing of structures to fail to meet design and specification requirements and shortens their service life.
[0004] This utility model provides the following technical solution: a clamp for embedded waterstop for structural waterproofing construction, including a U-shaped clamp and a fixing device. The fixing device can clamp and fix it to the structural steel bars. The retractable clamping opening on the U-shaped clamp can fix and hold the embedded waterstop. The U-shaped clamp is connected to the fixing device through a support rod, and the embedded waterstop is fixed with the structural steel bars as support.
[0005] Furthermore, the fixing device includes two clamping rods, which are movably fitted onto the support rod through through holes in the rod body. The two clamping rods are located between two butterfly nuts on the screw section of the support rod. When the two butterfly nuts are screwed in opposite directions, they push the clamping rods to clamp the structural steel bars.
[0006] Furthermore, the U-shaped clamp includes a U-shaped bottom edge, a left U-shaped side, a right U-shaped side, and a screw. The U-shaped bottom edge is connected to the support rod so that the clamping opening of the U-shaped clamp faces downward. Either the left U-shaped side or the right U-shaped side has a through hole and a reaction nut is fixed thereon. The screw passes through the reaction nut and the through hole from the outside and extends into the clamping opening. The screw is screwed into the reaction nut.
[0007] Furthermore, the bottom edge, left side, and right side of the U-shaped structure are made of angle steel strips, and are welded together.
[0008] Furthermore, pads are provided on both sides of the embedded waterstop inside the clamping opening of the U-shaped clamp.
[0009] Furthermore, several U-shaped clamps on the same side are connected as a whole, and the clamps are made of square steel.
[0010] Furthermore, the support rod is a screw.
[0011] Compared with the prior art, the advantages of this utility model are:
[0012] This utility model provides a recessed waterstop clamp for structural waterproofing construction. It features a simple structure and reasonable design. By applying clamping measures to the recessed waterstop, it prevents displacement of the waterstop during concrete pouring, thus avoiding leakage and seepage at construction joints. During structural construction, it only requires fixing the waterstop to the main structural reinforcement with a fixing device and fixing the waterstop with a U-shaped clamp. This effectively fixes the position and height of the waterstop, ensuring its straightness, convenience, and guaranteeing the quality of structural construction.
[0013] The components of this utility model are designed and processed using materials that are easy to use in the construction process, and are easy to install and disassemble. In the long run, they can be recycled as reusable materials, saving a lot of costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the installation of embedded waterstop clamps for structural waterproofing construction.
[0015] In the diagram: 1-U-shaped bottom edge; 2-Left U-shaped edge; 3-Right U-shaped edge; 4-Screw; 5-Reaction nut; 6-Support rod; 7-Butterfly nut; 8-Clamping rod; 9-Loop ring; 10-Embedded waterstop; 11-Pan block; 12-Structural steel reinforcement. Detailed Implementation
[0016] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] like Figure 1 As shown: A type of embedded waterstop clamp for structural waterproofing construction includes a U-shaped clamp and a fixing device. The fixing device can clamp and fix the embedded waterstop 10 to the structural steel bar 12. The retractable clamping opening on the U-shaped clamp can fix the embedded waterstop 10. The U-shaped clamp is connected to the fixing device through a support rod 6, and the embedded waterstop 10 is fixed with the structural steel bar as support.
[0018] The fixing device includes two clamping rods 8, which are movably fitted onto the support rod 6 through through holes in the rod body. The two clamping rods 8 are located between two butterfly nuts 7 on the threaded section of the support rod 6. When the two butterfly nuts 7 are screwed in towards each other, they push the clamping rods 8 to clamp the structural steel bars 12. The clamping rods 8 and butterfly nuts 7 can move as a whole on the support rod 6, thereby adjusting the distance between the fixing device and the U-shaped clamp, so that the waterstop clamp can adapt to different sidewall thicknesses.
[0019] The U-shaped clamp includes a U-shaped bottom edge 1, a left U-shaped side 2, a right U-shaped side 3, and a screw 4. The U-shaped bottom edge 1 is connected to the support rod 6 so that the clamping opening of the U-shaped clamp faces downward. Either the left U-shaped side 2 or the right U-shaped side 3 has a through hole and a reaction nut 5 is fixed thereon. The screw 4 passes through the reaction nut 5 and the through hole from the outside and extends into the clamping opening. The screw 4 engages with the reaction nut 5. When the screw 4 is tightened, the end of the screw 4 engages with the left U-shaped side 2 or the right U-shaped side 3 to clamp and fix the embedded waterstop 10.
[0020] The bottom edge 1, left U-shaped edge 2, and right U-shaped edge 3 of the U-shape are made of angle steel strips, which are welded together. Support rod 6 is a threaded rod. Clamping rod 8 is made of steel reinforcement, with a collar 9 welded to its center. The clamping rod 8 is fitted onto support rod 6 via the collar 9. All components are designed and manufactured using readily available materials, and are easy to install and disassemble. From a long-term perspective, they can be recycled and reused, saving significant costs.
[0021] The clamping opening of the U-shaped clamp has pads 11 on both sides of the embedded waterstop 10. The pads 11 on the same side of several U-shaped clamps are connected as a whole. The pads 11 are square steel, which ensures the straightness of the embedded waterstop 10.
[0022] After the side wall reinforcement is tied, the fixing device of the waterstop clamp is fixed on the main reinforcement of the inner side wall. The inner side of the U-shaped clamp is tightly attached to the square steel for clamping. Then, the screw 4 is turned to fix it, ensuring that the embedded waterstop 10 is stable. This can effectively control the straightness of the embedded waterstop 10, avoid displacement during concrete pouring, and ensure the quality of structural construction.
[0023] 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. A type of embedded waterstop clamp for structural waterproofing construction, characterized in that: It includes a U-shaped clamp and a fixing device. The fixing device can clamp and fix it to the structural steel bar (12). The retractable clamping opening on the U-shaped clamp can fix and hold the embedded waterstop. The U-shaped clamp is connected to the fixing device through the support rod (6) and the embedded waterstop (10) is fixed with the structural steel bar as support.
2. The embedded waterstop clamp for structural waterproofing construction according to claim 1, characterized in that: The fixing device includes two clamping rods (8), which are movably sleeved on the support rod (6) through the through holes on the rod body. The two clamping rods (8) are located between two butterfly nuts (7) on the screw section of the support rod (6). When the two butterfly nuts (7) are screwed in opposite directions, they push the clamping rods (8) to clamp the structural steel bars (12).
3. The embedded waterstop clamp for structural waterproofing construction according to claim 2, characterized in that: The U-shaped clamp includes a U-shaped bottom edge (1), a left U-shaped side (2), a right U-shaped side (3), and a screw (4). The U-shaped bottom edge (1) is connected to the support rod (6) so that the clamping opening of the U-shaped clamp faces downward. Either the left U-shaped side (2) or the right U-shaped side (3) has a through hole and a reaction nut (5) is fixed thereon. The screw (4) passes through the reaction nut (5) and the through hole from the outside and extends into the clamping opening. The screw (4) is screwed into the reaction nut (5).
4. The embedded waterstop clamp for structural waterproofing construction according to claim 3, characterized in that: The U-shaped bottom edge (1), left U-shaped edge (2) and right U-shaped edge (3) are angle steel strips, and the U-shaped bottom edge (1), left U-shaped edge (2) and right U-shaped edge (3) are welded together.
5. A pre-embedded waterstop clamp for structural waterproofing construction according to any one of claims 1 to 4, characterized in that: The clamping opening of the U-shaped clamp is provided with pads (11) on both sides of the embedded waterstop (10).
6. The embedded waterstop clamp for structural waterproofing construction according to claim 5, characterized in that: Several pads (11) on the same side of the U-shaped clamps are connected as a whole, and the pads (11) are square steel.
7. The embedded waterstop clamp for structural waterproofing construction according to claim 2, characterized in that: The support rod (6) is a screw.