Assembled variable flexible high and low temperature resistant water-blocking sleeve
By using an assembled, multi-variable, flexible, high and low temperature resistant water-blocking sleeve, and combining a steel sleeve, an anti-corrosion insulation layer, and a silicone sealing ring, the problem of reduced sealing performance of traditional sleeves is solved, achieving the effects of simplified installation and reduced costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANGFANG BAITONG CONSTRUCTION & INSTALLATION ENGINEERING CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional waterproof sleeves suffer from reduced sealing performance when the wall deforms or the pipe shifts, and the repair and replacement of integral flexible sleeves requires damage to the original structure, resulting in high costs.
The system adopts an assembled, variable, flexible, high and low temperature resistant water-blocking sleeve, which includes a steel sleeve, an anti-corrosion and heat-insulating layer, a flange assembly, and a high and low temperature resistant silicone sealing ring. It is connected by a detachable flange assembly to achieve a sealing effect and adapt to wall deformation and pipe displacement.
It simplifies installation, reduces construction costs and time without damaging the original structure, adapts to high and low temperature environments, alleviates water leakage, and has flexibility and sealing performance.
Smart Images

Figure CN224135350U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water-blocking sleeve technology, and more specifically, to an assembled, variable, flexible, high and low temperature resistant water-blocking sleeve. Background Technology
[0002] Leaks are common at the junctions of municipal infrastructure pipe networks and manholes, such as heating networks, water supply networks, fire protection networks, gas networks, stormwater and sewage networks, and power and communication networks. In these cases, high and low temperature resistant water-blocking sleeves are needed to seal the leaking areas.
[0003] Traditional waterproof sleeves may experience a significant decrease in sealing performance when the wall deforms or the pipe shifts, leading to a risk of leakage. Furthermore, flexible waterproof sleeves often employ an integral structure, making effective remedial measures difficult to implement, and repairs and replacements require damaging the original structure, resulting in high costs. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide an assembled, variable, flexible, high and low temperature resistant water-blocking sleeve to solve the problems in the background technology.
[0005] To achieve the above objectives, the present invention adopts the following technical solution;
[0006] An assembled, variable, flexible, high and low temperature resistant water-blocking sleeve includes a wall with a through-hole. A steel sleeve is fixedly connected to the inner wall of the through-hole, and an anti-corrosion and heat-insulating layer is fixedly connected to the inner wall of the steel sleeve. The inner wall of the anti-corrosion and heat-insulating layer contacts the pipe. A wall flange assembly welded to the left end of the steel sleeve is fitted with the wall flange assembly. A fixed flange assembly is welded to the left side of the wall flange assembly, and a fastening flange assembly is provided on the left side of the fixed flange assembly. Both the fastening flange assembly and the fixed flange assembly have annularly distributed connecting holes. A screw is provided between two adjacent connecting holes, and nuts are threaded onto both ends of the screw. A sealing ring is provided on the inner side of the fixed flange assembly, and the sealing ring is fitted onto and in contact with the pipe. The right side of the fastening flange assembly is in contact with the sealing ring.
[0007] As a further description of the above technical solution:
[0008] The sealing ring is a high and low temperature resistant silicone shaped strip layer.
[0009] As a further description of the above technical solution:
[0010] The wall flange assembly includes a flat plate, the left side of which is welded to the fixed flange assembly, and the right side of which is welded to an installation ring. The installation ring is fitted onto the steel sleeve and welded to it. The flat plate has annularly distributed installation holes.
[0011] As a further description of the above technical solution:
[0012] A sealing ring is bonded to the right side of the flat disk, and the sealing ring is a high and low temperature resistant silicone pad.
[0013] Compared with existing technologies, the advantages of this utility model are:
[0014] This solution can meet the requirements of not damaging the original structure and pipeline network, and is easy to manufacture and install, reducing construction costs and time. This product can be converted according to the actual manhole conditions and the variable performance of the installation and fixing parts, such as fixing to flat walls and original sleeves. It can prevent the inflow of external water sources, alleviate the vibration and expansion properties of the original pipeline network, and withstand high and low temperature conditions of the use environment and the pipeline network at the water blocking part. It is suitable for the leakage phenomenon at the junction of the manhole and the pipeline in the current municipal facility pipeline network. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This utility model Figure 1 Enlarged view of section A in the middle;
[0017] Figure 3 This is a schematic diagram of the installation of the structure on a flat wall according to the present invention;
[0018] Figure 4 This utility model Figure 3 Enlarged view of section B in the middle.
[0019] Explanation of the labels in the diagram:
[0020] 1. Wall; 2. Pipe hole; 3. Steel sleeve; 4. Anti-corrosion and heat insulation layer; 5. Pipe; 6. Wall flange assembly; 601. Flat plate; 602. Mounting ring; 603. Mounting hole; 7. Fixed flange assembly; 8. Fastening flange assembly; 9. Connection hole; 10. Threaded rod; 11. Nut; 12. Sealing ring; 13. Sealing ring. 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 of the present utility model;
[0022] Please see Figures 1-4In this utility model: an assembled, variable, flexible, high and low temperature resistant water-blocking sleeve includes a wall 1, a pipe hole 2 on the wall 1, a steel sleeve 3 fixedly connected to the inner wall of the pipe hole 2, an anti-corrosion and heat-insulating layer 4 fixedly connected to the inner wall of the steel sleeve 3, a pipe 5 in contact with the inner wall of the anti-corrosion and heat-insulating layer 4, a wall flange assembly 6 welded to the left end of the steel sleeve 3, a fixed flange assembly 7 welded to the left side of the wall flange assembly 6, a fastening flange assembly 8 on the left side of the fixed flange assembly 7, and annularly distributed connecting holes 9 on both the fastening flange assembly 8 and the fixed flange assembly 7, with bolts between adjacent connecting holes 9. The rod 10 and the screw 10 are both fitted with nuts 11 that are threaded to them. A sealing ring 12 is provided on the inner side of the fixed flange assembly 7. The sealing ring 12 is fitted on the pipe 5 and contacts it. The right side of the fastening flange assembly 8 contacts the sealing ring 12. The sealing ring 12 is a high and low temperature resistant silicone shaped strip layer. The wall flange assembly 6 includes a flat plate 601. The left side of the flat plate 601 is welded to the fixed flange assembly 7. The right side of the flat plate 601 is welded with an installation ring 602. The installation ring 602 is fitted on the steel sleeve 3 and welded to it. The flat plate 601 has annularly distributed installation holes 603.
[0023] In this utility model, the steel sleeve 3 and the anti-corrosion and heat insulation layer 4 can form a common high and low temperature water-blocking sleeve on the market. Based on the common high and low temperature water-blocking sleeve, the left end of the steel sleeve 3 protrudes from the wall 1. The mounting ring 602 is directly welded to the part of the steel sleeve 3 that protrudes from the wall 1. Then, the flat plate 601 is welded to the mounting ring 602. The flat plate 601 is welded and fixed to the fixed flange group 7. A stepped sealing groove can be formed between the flat plate 601 and the fixed flange group 7. The sealing ring 12 is placed in the sealing groove. The screw 10 and the nut 11 can detachably fix the fastening flange group 8 to the fixed flange group 7. By the fastening flange group 8 squeezing the sealing ring 12, the high and low temperature silicone strip expands to achieve a sealing effect. When the wall 1 deforms or the pipe 5 expands and vibrates, the high and low temperature silicone strip relieves stress and maintains the integrity of the seal. The flat plate 601 is provided with a ring of mounting holes 603.
[0024] During product manufacturing, the mounting ring 602 and the flat plate 601 can be installed without welding initially. The decision to weld them can be made on-site. This applies when the steel sleeve 3 protrudes from the wall 1. Figure 1 As shown, the mounting ring 602 is welded to the flat plate 601, and then installed using the above-described installation method; when remediating an existing water-blocking pipe sleeve, as... Figure 3 As shown, the steel sleeve 3 is set on the same plane as the wall 1. At this time, the mounting ring 602 loses its fixed position. The worker can attach the flat plate 601 to the wall 1, and then use the mounting holes 603 opened on the flat plate 601 to fix the flat plate 601 to the wall 1 with expansion bolts, which can also achieve fixed use.
[0025] This modular, variable, flexible, high and low temperature resistant water-blocking sleeve can meet the requirements of not damaging the original structure and pipe network. It is easy to manufacture and install, reducing construction costs and time. This product can be converted according to the actual well chamber conditions and the variable performance of the installation and fixing parts, such as fixing to a flat wall 1 and fixing to the original sleeve. It can prevent the inflow of external water sources, alleviate the vibration and expansion properties of the original pipe network itself, and meet the high and low temperature conditions of the use environment and the pipe network at the water blocking part. It is suitable for the leakage phenomenon at the junction of the well chamber and the pipe 5 in the current municipal facility pipe network.
[0026] Please see Figure 2 and 4 Among them, a sealing ring 13 is bonded to the right side of the flat disk 601. The sealing ring 13 is a high and low temperature resistant silicone pad.
[0027] In this invention, the sealing ring 13 can seal the plane plate 601 and the wall 1 when the wall 1 is fixed, thereby improving the practicality of the device.
[0028] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.
Claims
1. An assembled multi-variant flexible high and low temperature resistant water blocking sleeve pipe, comprising a wall body (1), characterized in that: A pipe hole (2) is provided on the wall (1). A steel sleeve (3) is fixedly connected to the inner wall of the pipe hole (2). An anti-corrosion and heat-insulating layer (4) is fixedly connected to the inner wall of the steel sleeve (3). A pipe (5) is in contact with the inner wall of the anti-corrosion and heat-insulating layer (4). A wall flange assembly (6) is fitted onto the left end of the steel sleeve (3) and welded to it. A fixed flange assembly (7) is welded to the left side of the wall flange assembly (6). A fastening flange assembly is provided on the left side of the fixed flange assembly (7). (8) Both the fastening flange assembly (8) and the fixed flange assembly (7) are provided with annularly distributed connecting holes (9). A screw (10) is provided between two adjacent connecting holes (9). Both ends of the screw (10) are fitted with nuts (11) that are threadedly connected to it. A sealing ring (12) is provided on the inner side of the fixed flange assembly (7). The sealing ring (12) is fitted on the pipe (5) and in contact with it. The right side of the fastening flange assembly (8) is in contact with the sealing ring (12).
2. The assembled multi-variant flexible high-low temperature resistant water blocking sleeve according to claim 1, characterized in that: The sealing ring (12) is a high and low temperature resistant silicone shaped strip layer.
3. The assembled multi-variant flexible high-low temperature resistant water blocking sleeve according to claim 1, characterized in that: The wall flange assembly (6) includes a flat plate (601), the left side of which is welded to the fixed flange assembly (7), and the right side of which is welded to an mounting ring (602). The mounting ring (602) is fitted onto the steel sleeve (3) and welded to it. The flat plate (601) has annularly distributed mounting holes (603).
4. The assembled multi-variant flexible high-low temperature resistant water blocking sleeve of claim 3, wherein: A sealing ring (13) is bonded to the right side of the flat disk (601), and the sealing ring (13) is a high and low temperature resistant silicone pad.