Building main body pipe hole waterproof connecting structure
By using the coordinated design of sleeves, extrusion parts and sealing gaskets, and taking advantage of the elastic deformation of rubber materials and multi-layer sealing structure, the technical problems of traditional pipe hole waterproofing methods are solved, achieving the corresponding dynamic sealing effect, significantly improving waterproofing performance and construction efficiency, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520447426.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Traditional pipe hole waterproofing methods have low reliability, insufficient dynamic compensation capability, are prone to leakage and have high maintenance costs, and are difficult to cope with stress changes caused by thermal expansion and contraction of pipes and building settlement.
By employing a collaborative design of sleeve, extrusion component, sealing sleeve and sealing gasket, and utilizing the elastic deformation capability of rubber material and multi-layer sealing structure, dynamic sealing between pipeline and building structure is achieved. The degree of extrusion can be adjusted by tightening screws to adapt to stress changes.
It significantly improves waterproof performance, reduces construction and maintenance costs, enhances the durability and applicability of the sealing structure, allows for easy replacement of seals, and adapts to different pipe diameters and environmental conditions.
Smart Images

Figure CN223622443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and in particular to a waterproof connection structure for pipe openings in building structures. Background Technology
[0002] In construction projects, pipes (such as water supply and drainage pipes, ventilation pipes, etc.) need to pass through the main structure of the building (such as walls, floors, etc.), and at this time, the waterproofing treatment of the pipe openings is crucial.
[0003] Traditional methods of waterproofing pipe openings have the following problems: 1. Low waterproofing reliability. Currently, cement mortar or waterproof coatings are often used for direct sealing. However, due to the high shrinkage and insufficient adhesion of these materials, cracks are easily formed, leading to leakage. Multi-layer sealing methods (such as rubber rings + waterstop strips) are complex to construct and the sealing interface is prone to failure. 2. Insufficient dynamic compensation capability. When pipes expand and contract due to heat or buildings settle, the structure cannot adapt to the changes, which can easily lead to stress concentration and seal failure. 3. High maintenance costs. After leakage occurs, pipes need to be removed or the building structure needs to be damaged for repairs, resulting in high maintenance costs.
[0004] While existing improvement solutions have partially solved the above problems, they still have defects such as poor fit between the seal and the pipe, lack of elastic compensation mechanism, and insufficient durability. This utility model achieves dynamic sealing between the pipe and the building structure by using the coordinated design of sleeve, extrusion part, sealing sleeve and sealing gasket, and utilizing the elastic deformation capability of rubber material and multi-layer sealing structure, which significantly improves waterproof performance and construction efficiency. Utility Model Content
[0005] The purpose of this utility model is to provide a waterproof connection structure for pipe holes in the main building to solve the problems of low reliability of traditional pipe hole waterproofing methods, insufficient dynamic compensation ability of traditional structures, and difficulty in coping with stress changes caused by thermal expansion and contraction of pipes and building settlement.
[0006] This utility model achieves the above objectives through the following technical solutions:
[0007] A waterproof connection structure for a pipe hole in a building structure includes a building structure and a pipe. The building structure has a hole, and a sleeve is installed inside the hole. The pipe passes through the lower end of the sleeve. An extrusion member is installed inside the sleeve. A sealing sleeve is installed between the extrusion member and the pipe. A sealing gasket is installed on the upper surface of the sleeve. Fastening screws are installed sequentially through the sealing gasket, the extrusion member, and the sleeve.
[0008] Furthermore, the upper outer ring of the sleeve is provided with a flange, the lower center position is provided with a first circular hole, and the upper surface of the lower end is provided with a relief groove along the inner wall. The flange is provided with a plurality of first threaded holes at equal intervals, and the relief groove is provided with a plurality of second threaded holes at equal intervals.
[0009] Furthermore, the extruder has a first extrusion block at both the upper and lower ends along the inner ring, and the extruder body has a threaded through hole corresponding to the second threaded hole, with the upper end of the threaded through hole being a countersunk hole design.
[0010] Furthermore, the sealing sleeve is composed of several sealing blocks, and a second compression block is provided at the upper and lower ends of the outer side of each sealing block.
[0011] Furthermore, the lower surface of the sealing gasket is provided with a protrusion, and the upper surface is provided with a slope. The protrusion is inserted into the inner ring of the sleeve. A second circular hole is opened at the center of the sealing gasket, and a third threaded hole corresponding to the first threaded hole and a fourth threaded hole corresponding to the second threaded hole are opened on its outer ring.
[0012] Furthermore, connecting bolts are provided to the building body through the fourth threaded hole and the first threaded hole.
[0013] Furthermore, the parts of the sleeve, the sealing sleeve, and the sealing gasket that come into contact with the pipe are all made of rubber.
[0014] Beneficial effects: This utility model has the following beneficial effects:
[0015] 1. The multi-layer sealing structure provides multiple layers of protection. The sealing sleeve has multiple sealing blocks spliced together. The first extrusion block of the extrusion component and the second extrusion block on the outer side of the sealing block form a tight surrounding seal for the pipeline. The sealing gasket is inserted into the inner ring of the sleeve through the protrusion. The sloping design prevents water accumulation and seepage. It blocks the seepage path in all directions, effectively solves the problem of easy leakage in traditional waterproofing methods, and greatly improves waterproofing performance.
[0016] 2. The parts of the sleeve, sealing sleeve, and sealing gasket that contact the pipe are made of rubber. Utilizing the good elastic deformation ability of rubber, it can effectively absorb the stress generated by the thermal expansion and contraction of the pipe and the settlement of the building. At the same time, the extrusion part can adjust the degree of extrusion on the sealing sleeve through the fastening screw, so that the sealing structure can dynamically adapt to various stress changes, avoid stress concentration leading to sealing failure, and ensure the long-term stable operation of the waterproof structure.
[0017] 3. The sealing sleeve is composed of independent sealing blocks, which can be flexibly assembled according to the actual diameter of the pipe without complicated custom processing. The sleeve is connected to the main building through flange and connecting bolts, making installation and disassembly simple. When leakage occurs, the sealing sleeve or sealing gasket can be easily replaced without removing the pipe or damaging the building structure, which greatly reduces the difficulty and cost of maintenance and improves construction and maintenance efficiency.
[0018] 4. The extrusion component engages with the second threaded hole of the sleeve through the threaded through hole. The degree of extrusion can be precisely controlled by the fastening screw, thereby flexibly adjusting the radial expansion of the sealing sleeve. It can adapt to pipes of different diameters. The slope design of the sealing gasket can effectively guide water flow to the outside and adapt to complex working conditions in different environments. This waterproof connection structure can play a good role in waterproofing various building pipe openings and has wide applicability. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the sleeve structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the extrusion structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the sealing sleeve structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the sealing gasket structure of this utility model.
[0024] In the diagram: 1-Building structure, 2-Pipe, 3-Hole, 4-Sleeve, 5-Extrusion part, 6-Sealing sleeve, 7-Sealing gasket, 8-Fasting screw, 9-Connecting bolt;
[0025] 401-Flange, 402-First round hole, 403-Allowing groove, 404-First threaded hole, 405-Second threaded hole, 501-First pressing block, 502-Threaded through hole, 503-Counterhead hole, 601-Sealing block, 602-Second pressing block, 701-Protrusion, 702-Ceiling, 703-Second round hole, 704-Third threaded hole, 705-Fourth threaded hole. Detailed Implementation
[0026] 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.
[0027] Combination Figures 1 to 5The diagram shows a waterproof connection structure for a building main body pipe opening, including a building main body 1 and a pipe 2. The building main body 1 has an opening 3, and a sleeve 4 is installed inside the opening 3. The pipe 2 passes through the lower end of the sleeve 4, and an extrusion member 5 is installed inside the sleeve 4. A sealing sleeve 6 is installed between the extrusion member 5 and the pipe 2. When subjected to pressure from the extrusion member 5, the sealing sleeve 6 will tightly fit the pipe 2, playing a crucial sealing role. A sealing gasket 7 is installed on the upper surface of the sleeve 4 to further enhance the waterproof effect at the top. Fastening screws 8 are installed sequentially through the sealing gasket 7, the extrusion member 5, and the sleeve 4.
[0028] The upper outer ring of the sleeve 4 is provided with a flange 401, and the lower center is provided with a first circular hole 402 to provide a passage for the pipe 2 to pass through. The upper surface of the lower end is provided with a relief groove 403 along the inner wall to provide space for the adjustment of the extrusion component 5. Several first threaded holes 404 are equally spaced on the flange 401, and several second threaded holes 405 are equally spaced on the relief groove 403 to facilitate the connection of the fastening screw 8 and the adjustment of the position of the extrusion component 5, thereby controlling the degree of extrusion on the sealing sleeve 6, enhancing the adjustability and adaptability of the structure, and enabling flexible adjustment according to different construction needs.
[0029] The extrusion component 5 has a first extrusion block 501 at both the upper and lower ends along the inner ring. When the extrusion component 5 moves downward under the force of the fastening screw 8, the first extrusion block 501 can evenly transmit the pressure to the upper and lower ends of the sealing sleeve 6, so that the sealing sleeve 6 can fit more tightly against the pipe 2 and improve the sealing effect. The body of the extrusion component 5 has a threaded through hole 502 corresponding to the second threaded hole 405, which allows the operator to accurately control the descent height of the extrusion component 5 by rotating the fastening screw 8, thereby accurately adjusting the extrusion force on the sealing sleeve 6. The upper end of the threaded through hole 502 is designed as a countersunk hole 503, which allows the head of the fastening screw 8 to be recessed into it, avoiding the impact of the screw head protruding during the extrusion process on the normal operation of the extrusion component 5, and also ensuring the flatness of the structure, making the extrusion component 5 more stable and reliable during operation.
[0030] The sealing sleeve 6 is composed of several sealing blocks 601. This multi-block splicing design gives it good flexibility and assemblability. During installation, the number of sealing blocks 601 can be flexibly selected and spliced according to the actual pipe diameter of the pipe 2, which greatly improves the adaptability of the sealing sleeve 6 to pipes of different diameters. The upper and lower ends of the outer side of the sealing block 601 are provided with second extrusion blocks 602. The first extrusion block 501 and the second extrusion block 602 cooperate with each other. When the extrusion piece 5 is pressed down, the first extrusion block 501 pushes the second extrusion block 602, thereby making the sealing block 601 tightly wrap around the pipe 2, forming multiple sealing defenses, effectively preventing water leakage, greatly improving the sealing effect, and solving the problem of poor fit between the sealing piece and the pipe in traditional sealing methods.
[0031] The lower surface of the sealing gasket 7 is provided with a protrusion 701, and the upper surface is provided with a ramp 702. The protrusion 701 is inserted into the inner ring of the sleeve 4, which can accurately position the sealing gasket 7 and prevent it from shifting during use, ensuring the stability of the sealing effect. The design of the ramp 702 has the function of guiding water flow, preventing water from accumulating on the sealing gasket 7, and further enhancing the waterproof performance. The sealing gasket 7 has a second circular hole 703 at its center, and its outer ring has a third threaded hole 704 corresponding to the first threaded hole 404 and a fourth threaded hole 705 corresponding to the second threaded hole 405.
[0032] A connecting bolt 9 is connected to the main body 1 through the fourth threaded hole 705 and the first threaded hole 404. The connecting bolt 9 tightly connects the sleeve 4, the sealing gasket 7 and the main body 1 together to form a stable overall structure. During long-term use, it can effectively resist the effects of building settlement, vibration and other factors, and ensure that the waterproof connection structure will not loosen due to external forces, thereby maintaining good waterproof performance.
[0033] The parts of sleeve 4, sealing sleeve 6, and sealing gasket 7 that come into contact with pipe 2 are all made of rubber. Rubber has good elasticity and flexibility, and can fit tightly to the surface of pipe 2. Even if pipe 2 undergoes slight displacement due to thermal expansion and contraction or building settlement, the rubber material can adapt and adjust itself through its own elastic deformation, always maintaining a good sealing state. At the same time, rubber also has a certain degree of corrosion resistance, and can be used for a long time in humid environments without damage, greatly improving the durability of the waterproof connection structure.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A waterproof connection structure for pipe openings in a building structure, comprising a building structure (1) and pipes (2), wherein the building structure (1) has openings (3), characterized in that: A sleeve (4) is provided inside the hole (3), the pipe (2) passes through the lower end of the sleeve (4), an extrusion member (5) is provided inside the sleeve (4), a sealing sleeve (6) is provided between the extrusion member (5) and the pipe (2), a sealing gasket (7) is provided on the upper surface of the sleeve (4), and a fastening screw (8) is provided through the sealing gasket (7), the extrusion member (5) and the sleeve (4) in sequence.
2. The waterproof connection structure for pipe openings in a building structure according to claim 1, characterized in that: The upper outer ring of the sleeve (4) is provided with a flange (401), the lower center is provided with a first round hole (402), and the upper surface of the lower end is provided with a relief groove (403) along the inner wall. The flange (401) is provided with a plurality of first threaded holes (404) at equal intervals, and the relief groove (403) is provided with a plurality of second threaded holes (405) at equal intervals.
3. The waterproof connection structure for pipe openings in a building structure according to claim 2, characterized in that: The extrusion piece (5) has a first extrusion block (501) at both the upper and lower ends along the inner ring. The body of the extrusion piece (5) has a threaded through hole (502) corresponding to the second threaded hole (405). The upper end of the threaded through hole (502) is designed as a countersunk hole (503).
4. The waterproof connection structure for pipe openings in a building structure according to claim 3, characterized in that: The sealing sleeve (6) is composed of several sealing blocks (601), and the upper and lower ends of the outer side of the sealing block (601) are provided with second compression blocks (602).
5. A waterproof connection structure for pipe openings in a building structure according to claim 4, characterized in that: The sealing gasket (7) has a protrusion (701) on its lower surface and a ramp (702) on its upper surface. The protrusion (701) is inserted into the inner ring of the sleeve (4). The sealing gasket (7) has a second circular hole (703) at its center and a third threaded hole (704) corresponding to the first threaded hole (404) and a fourth threaded hole (705) corresponding to the second threaded hole (405) on its outer ring.
6. The waterproof connection structure for pipe openings in a building structure according to claim 5, characterized in that: A connecting bolt (9) is provided to the building body (1) through the fourth threaded hole (705) and the first threaded hole (404).
7. A waterproof connection structure for pipe openings in a building structure according to claim 6, characterized in that: The sleeve (4), the sealing sleeve (6), and the sealing gasket (7) are all made of rubber in contact with the pipe (2).