Water stop structure for horizontal steel pipe support through-wall construction in foundation pit
By using a gap-reinforced sealing mechanism and sealing rings in the horizontal steel pipe support wall construction within the foundation pit, the problem of water seepage between the water-stop ring and the wall-penetrating steel pipe was solved, achieving the sealing effect of multiple water-stop layers and the positioning function of the pipe penetration.
Patent Information
- Application Number
- CN202423281290.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the existing construction of horizontal steel pipe supports penetrating the wall in the foundation pit, the gap between the water-stop ring and the penetrating steel pipe causes water seepage problems, and conventional filling methods have defects such as excessively large gaps or difficulty in filling.
A gap-reinforced sealing mechanism is adopted, including a sealing ring, outer ring teeth, and inner ring teeth. The multi-tooth high-precision meshing seals the front end of the gap and, together with a sealing rubber ring, forms multiple water-stopping layers to improve the sealing effect.
It effectively reduces water seepage at joints, ensures good waterproofing, and serves as a pipe positioning and location indicator during assembly.
Smart Images

Figure CN223549982U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wall penetration construction technology, and specifically relates to a water-stopping structure for horizontal steel pipe support in wall penetration construction within a foundation pit. Background Technology
[0002] The horizontal steel pipe support wall penetration water-stop structure in the foundation pit is an innovative construction technology designed to solve the water seepage problem when a circular steel pipe penetrates a wall. The structure mainly includes components such as a water-stop ring, annular water-stop steel plate, micro-expansion concrete, and circular sealing steel plate. The annular water-stop steel plate, micro-expansion concrete, and circular sealing steel plate can form an effective water-stop structure to prevent water seepage.
[0003] However, there is a certain gap between the water-stop ring and the horizontally installed through-wall steel pipe, which causes water seepage. This gap is usually filled with filler, but if the gap is too large, the amount of filler will be large and the filling structure will not be compact enough. If the gap is too small, it will be difficult to fill the filler evenly. Therefore, a water-stop structure for horizontal steel pipe support through-wall construction in the foundation pit is needed to solve the problems existing in the current technology. Utility Model Content
[0004] The purpose of this utility model is to provide a water-stopping structure for horizontal steel pipe support through-wall construction in foundation pits, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a water-stopping structure for horizontal steel pipe support through-wall construction in a foundation pit, comprising a basement wall, wherein a water-stopping ring is provided inside the basement wall, and a through-wall steel pipe is inserted inside the water-stopping ring, and a gap-reinforcing sealing mechanism is provided between the water-stopping ring and the through-wall steel pipe, the gap-reinforcing sealing mechanism comprising a sealing ring, an outer ring tooth, and an inner ring tooth, the sealing ring being sleeved on the through-wall steel pipe, the outer ring tooth being disposed on the outer ring of the sealing ring, the inner ring tooth being disposed on the inner ring of the sealing ring, and an annular groove being formed on the inner wall of the water-stopping ring, wherein a sealing rubber ring is embedded in the annular groove of the water-stopping ring.
[0006] It should be noted in the solution that the side of the through-wall steel pipe is provided with a second assembly tooth groove, and the inner ring teeth of the sealing ring are adapted to the second assembly tooth groove.
[0007] It is worth noting that a first mounting groove is provided on one end face of the water-stop ring, and the outer ring teeth of the sealing ring are adapted to the first mounting groove.
[0008] Furthermore, it should be noted that a gap is provided between the water-stop ring and the through-wall steel pipe, and the sealing ring, outer ring teeth, and inner ring teeth are located at the front end of the gap.
[0009] In a preferred embodiment, one end face of the sealing ring is tightly abutted against the sealing rubber ring, and the inner ring of the sealing rubber ring is fitted over the outside of the through-wall steel pipe.
[0010] In a preferred embodiment, the interior of the basement wall is provided with a receiving groove, and a water-stop groove is provided on the wall where the receiving groove is located. A water-stop ring is fixedly fitted on the surface of the water-stop ring, and the water-stop ring is adapted to the water-stop groove of the basement wall.
[0011] Compared with the prior art, the water-stopping structure for horizontal steel pipe support through-wall construction in the foundation pit provided by this utility model has at least the following beneficial effects:
[0012] By using a reinforced sealing mechanism and sealing ring with a set gap, the sealing ring accurately and tightly seals the front end of the gap opening through the outer and inner ring teeth. The sealing ring adopts a multi-tooth high-precision meshing method to reduce the trouble of water seepage in the joint, and together with the sealing ring arranged behind it, it can create multiple water-stopping layers to ensure a good water-stopping effect.
[0013] The sealing ring, when installed, can also serve as a positioning indicator and arrival point indicator during the assembly of the through-wall steel pipe and the water-stop ring. Attached Figure Description
[0014] Figure 1 This is a perspective view of the overall structure of this utility model;
[0015] Figure 2 This is a perspective view of the receiving slot structure of this utility model;
[0016] Figure 3 This is a perspective view of the sealing ring structure of this utility model;
[0017] Figure 4 This is a three-dimensional view of the sealing ring structure of this utility model.
[0018] In the diagram: 1. Basement wall; 2. Receiving groove; 3. Water-stop groove; 4. Water-stop retaining ring; 5. Water-stop ring; 6. Through-wall steel pipe; 7. First assembly tooth groove; 8. Sealing insert ring; 9. Outer ring tooth; 10. Inner ring tooth; 11. Second assembly tooth groove; 12. Gap opening; 13. Annular groove; 14. Sealing rubber ring. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Please see Figure 1-4 This utility model provides a water-stopping structure for horizontal steel pipe support through-wall construction in a foundation pit, including a basement wall 1. A water-stopping ring 4 is installed inside the basement wall 1. A through-wall steel pipe 6 passes through the water-stopping ring 4. A gap-reinforcing sealing mechanism is provided between the water-stopping ring 4 and the through-wall steel pipe 6. The gap-reinforcing sealing mechanism includes a sealing ring 8, an outer ring tooth 9, and an inner ring tooth 10. The sealing ring 8 is sleeved on the through-wall steel pipe 6. The outer ring tooth 9 is set on the outer ring of the sealing ring 8. The inner ring tooth 10 is set on the inner ring of the sealing ring 8. An annular groove 13 is opened on the inner wall of the water-stopping ring 5. A sealing rubber ring 14 is embedded in the annular groove 13 of the water-stopping ring 5.
[0021] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the side of the through-wall steel pipe 6 is provided with a second assembly groove 11, and the inner ring teeth 10 of the sealing ring 8 are adapted to the second assembly groove 11.
[0022] Further as Figure 3 As shown, it is worth noting that a first mounting groove 7 is provided on one end face of the water-stop ring 4, and the outer ring teeth 9 of the sealing ring 8 are adapted to the first mounting groove 7.
[0023] This solution involves the following steps: Before the basement wall 1 is filled with concrete, the water-stop ring 4 is fixed to the steel reinforcement frame of the basement wall 1. One end of the horizontal through-wall steel pipe 6 is inserted into the water-stop ring 4. At this time, the sealing ring 8, which is fitted at the second assembly groove 11 of the through-wall steel pipe 6, enters the gap 12 between the through-wall steel pipe 6 and the water-stop ring 4. Thus, the outer ring tooth 9 of the sealing ring 8 engages with the first assembly groove 7 of the water-stop ring 4, while the inner ring tooth 10 of the sealing ring 8 engages with the second assembly groove 11 of the through-wall steel pipe 6. In this way, the sealing ring 8 accurately and tightly seals the front end of the gap 12 through the outer ring tooth 9 and the inner ring tooth 10. The sealing ring 8 adopts a multi-tooth high-precision engagement method, which can reduce the trouble of water seepage in the joint. In addition, in conjunction with the sealing rubber ring 14 arranged behind, it can create multiple water-stopping layers to ensure a good water-stopping effect.
[0024] As can be seen from the above working process, the sealing ring 8 accurately and tightly seals the front end of the gap 12 through the outer ring teeth 9 and the inner ring teeth 10. The sealing ring 8 adopts a multi-tooth high-precision meshing method, which can reduce the trouble of water seepage in the joint. In addition, the sealing rubber ring 14 arranged behind it can create multiple water-stopping layers to ensure a good water-stopping effect.
[0025] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that a gap 12 is provided between the water-stop ring 4 and the through-wall steel pipe 6. The sealing ring 8, outer ring teeth 9, and inner ring teeth 10 are located at the front end of the gap 12. During the operation of the through-wall steel pipe 6 passing through the water-stop ring 4, the through-wall steel pipe 6 stops when it is completely embedded in the water-stop ring 4 by the sealing ring 8. In this way, the sealing ring 8 can also play the role of pipe positioning and arrival position indication during the assembly of the through-wall steel pipe 6 and the water-stop ring 4.
[0026] Further as Figure 4 As shown, it is worth noting that one end face of the sealing ring 8 is tightly attached to the sealing rubber ring 14, and the inner ring of the sealing rubber ring 14 is fitted around the outside of the through-wall steel pipe 6.
[0027] Further as Figure 1 As shown, it is worth noting that the interior of the basement wall 1 is provided with a receiving groove 2, and a water-stop groove 3 is provided on the wall where the receiving groove 2 is located. A water-stop ring 5 is fixedly fitted on the surface of the water-stop ring 4, and the water-stop ring 5 is adapted to the water-stop groove 3 of the basement wall 1.
[0028] In summary: The sealing ring 8 accurately and tightly seals the front end of the gap 12 through the outer ring teeth 9 and the inner ring teeth 10. The sealing ring 8 adopts a multi-tooth high-precision meshing method, which can reduce the trouble of water seepage in the joint. In addition, together with the sealing rubber ring 14 arranged behind it, it can create multiple water-stopping layers to ensure good water-stopping effect. The sealing ring 8 can also play a role in pipe positioning and arrival position indication during the assembly of the through-wall steel pipe 6 and the water-stopping ring 4.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A horizontal steel pipe support structure for waterproofing construction in a foundation pit, comprising a basement wall (1), characterized in that: A water-stop ring (4) is installed inside the basement wall (1). A through-wall steel pipe (6) is inserted inside the water-stop ring (4). A gap-reinforcing sealing mechanism is provided between the water-stop ring (4) and the through-wall steel pipe (6). The gap-reinforcing sealing mechanism includes a sealing ring (8), an outer ring tooth (9), and an inner ring tooth (10). The sealing ring (8) is fitted onto the through-wall steel pipe (6). The outer ring tooth (9) is set on the outer ring of the sealing ring (8). The inner ring tooth (10) is set on the outer ring of the sealing ring (8). The basement wall (1) is provided with a receiving groove (2) inside the sealing ring (8) and a water-stop groove (3) is provided on the wall where the receiving groove (2) is located. A water-stop ring (5) is fixedly fitted on the surface of the water-stop ring (4). The water-stop ring (5) is adapted to the water-stop groove (3) of the basement wall (1). An annular groove (13) is provided on the inner wall of the water-stop ring (5). A sealing rubber ring (14) is embedded in the annular groove (13) of the water-stop ring (5).
2. The horizontal steel pipe support wall-penetrating water-stopping structure in a foundation pit according to claim 1, characterized in that: The side of the through-wall steel pipe (6) is provided with a second assembly groove (11), and the inner ring teeth (10) of the sealing ring (8) are adapted to the second assembly groove (11).
3. The water-stopping structure for horizontal steel pipe support through-wall construction in a foundation pit according to claim 2, characterized in that: The water-stop ring (4) has a first assembly groove (7) on one end face, and the outer ring teeth (9) of the sealing ring (8) are adapted to the first assembly groove (7).
4. The water-stopping structure for horizontal steel pipe support through-wall construction in a foundation pit according to claim 3, characterized in that: A gap (12) is provided between the water-stopping ring (4) and the through-wall steel pipe (6), and the sealing ring (8), outer ring teeth (9) and inner ring teeth (10) are provided at the front end of the gap (12).
5. The water-stopping structure for horizontal steel pipe support through-wall construction in a foundation pit according to claim 4, characterized in that: One end face of the sealing ring (8) is closely attached to the sealing rubber ring (14), and the inner ring of the sealing rubber ring (14) is fitted around the outside of the through-wall steel pipe (6).