A kind of municipal sewerage pipe maintenance is with the reinforcing structure of blocking wall
By using steel plate and roof wall structures, combined with threaded rods and steel pipe supports, and equipped with patch micro-strain sensors in the maintenance of municipal drainage pipelines, the problems of insufficient pressure resistance and lack of safety early warning of the sealing wall have been solved, and efficient safety early warning and equipment protection have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 庞富章
- Filing Date
- 2025-10-10
- Publication Date
- 2026-07-24
AI Technical Summary
The existing sealing walls used for the maintenance of municipal drainage pipelines are not strong enough to withstand high water pressure and lack a safety early warning mechanism, posing a risk of collapse and endangering the safety of maintenance personnel.
The structure employs steel plates and top walls, combined with threaded rods and steel pipe supports. It is equipped with patch-type micro-strain sensors to monitor the deformation of the steel pipes in real time and transmit alarms via data lines, thereby enhancing the pressure resistance and safety early warning function of the sealing wall.
It significantly improves the compressive strength of the sealing wall, provides timely early warning to prevent collapse, ensures the safety of maintenance personnel, and reduces the risk of equipment damage.
Smart Images

Figure CN224551092U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal pipeline maintenance technology, specifically a sealing wall reinforcement structure for municipal drainage pipeline inspection. Background Technology
[0002] The design goal of municipal drainage pipe reinforcement structures is to ensure the continued normal operation of the drainage system in the event of earthquakes or other natural disasters. Reinforcement structures prevent pipe ruptures or leaks by enhancing the strength and sealing of pipe joints, reducing secondary disasters caused by damage to the drainage system, such as flooding or sewage leaks.
[0003] In the maintenance of drainage pipelines, temporary sealing layers are usually installed in the pipelines inside the working well to prevent upstream water from entering the maintenance section. However, as upstream water continues to accumulate, the water pressure on the sealing layer gradually increases, posing a risk of sudden collapse due to excessive pressure. The high-speed gushing water can easily cause serious injury to maintenance personnel inside the pipeline. Therefore, there is an urgent need for a structure that can effectively reinforce the sealing wall and has a real-time safety warning function. Utility Model Content
[0004] To address the shortcomings of existing sealing wall reinforcement structures for municipal drainage pipeline maintenance, this utility model provides a sealing wall reinforcement structure for municipal drainage pipeline maintenance. It features a steel plate and top plate wall fitted together between the inlet and outlet pipes, with a steel pipe installed outside a threaded rod. The steel pipe drives the steel plate wall and top plate to support the inlet and outlet pipes, effectively improving the overall impact resistance of the sealing layer. Simultaneously, a patch-type micro-strain sensor promptly detects the bending state of the steel pipe, allowing for timely detection of potential safety hazards and enhancing safety during pipeline maintenance. This design solves the problems of insufficient pressure resistance and lack of safety early warning mechanisms in traditional sealing walls.
[0005] This utility model provides the following technical solution: a sealing wall reinforcement structure for municipal drainage pipeline maintenance, comprising: a working well; an inlet pipe and an outlet pipe respectively provided on both sides of the lower part of the working well; a circular steel plate wall attached to the inner side of the inlet pipe; a circular top plate attached to the inner side of the outlet pipe; several sets of threaded rods fixedly connected to the outer sides of the steel plate wall and the top plate; a steel pipe threadedly connected to each set of threaded rods; the middle parts of the multiple steel pipes are fixed together by an annular reinforcing rib; the lower part of the reinforcing rib is connected to a fixed bracket fixed at the bottom of the working well by bolts; a patch-type micro-strain sensor is attached to the outer wall of the steel pipe and connected to a data line extending to the outside of the working well; and an end reinforcement device for auxiliary support of the steel pipe is provided on the inner side of the steel plate wall.
[0006] Preferably, the reinforcement device includes a fixing plate that is fixed to the inner side of the steel plate wall by bolts. The fixing plate is provided with a number of slide rails corresponding to the position of the threaded rod, and a slider is slidably installed in each set of slide rails.
[0007] Preferably, the slider is hinged with a diagonal brace, and the other end of the diagonal brace is fitted with an mounting sleeve via a hinge. A reinforcing sleeve is rotatably fitted inside the mounting sleeve, and the reinforcing sleeve is movably fitted to the end of the steel pipe.
[0008] Preferably, the inside of the water inlet pipe is filled with a sealing layer inside the steel plate wall.
[0009] Preferably, the diameter of the steel plate wall and the top plate is larger than the diameter of the inlet pipe and the outlet pipe, and the top plate has an opening inside to facilitate the passage of maintenance personnel.
[0010] Preferably, the reinforcing rib is annular, with multiple mounting holes evenly spaced along its circumference for steel pipes to pass through.
[0011] Preferably, the end of the data cable is connected to a display and a buzzer.
[0012] Compared with existing sealing wall reinforcement structures used for municipal drainage pipeline maintenance, this utility model has the following advantages: 1. This municipal drainage pipeline maintenance sealing wall reinforcement structure significantly enhances the sealing wall's compressive strength by installing a sealing layer inside the inlet pipe and using multiple threaded steel pipes to press against the steel plate wall. Additionally, reinforcing ribs and patch-type micro-strain sensors are installed on the outside of the steel pipes. When excessive water pressure causes the steel pipe to bend, the sensors can detect the deformation signal in real time and transmit it to a ground-based display and alarm via data cable, issuing a timely warning. This effectively prevents safety accidents caused by sealing wall collapse and ensures the safety of maintenance personnel.
[0013] 2. The municipal drainage pipeline maintenance sealing wall reinforcement structure uses reinforcing ribs installed on the outside of the steel pipe to improve the compressive strength of the steel pipe. At the same time, a fixing plate is installed on the inside of the steel plate wall, and a sliding rail is installed on the outside of the fixing plate. By adjusting the position of the slider, the installation sleeve is pushed on the outside of the steel pipe. That is, the diagonal brace provides diagonal support to the steel pipe, avoiding excessive pressure on the end of the steel pipe, which could lead to deformation and damage to the steel pipe. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic cross-sectional view of the main body of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4This is an enlarged schematic diagram of the sealing structure of this utility model; Figure 5 This is a partially enlarged structural schematic diagram of the auxiliary reinforcement device of this utility model.
[0015] In the diagram: 1. Working well; 2. Inlet pipe; 3. Outlet pipe; 4. Sealing layer; 5. Steel plate wall; 6. Threaded rod; 7. Steel pipe; 8. Reinforcing rib; 9. Fixed bracket; 10. Patch-type micro-strain sensor; 11. Data cable; 12. Fixing plate; 13. Slide rail; 14. Slider; 15. Diagonal brace; 16. Mounting sleeve; 17. Reinforcing sleeve; 18. Top plate. Detailed Implementation
[0016] The technical solution of this utility model will be clearly and completely described below with reference to preferred embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A sealing wall reinforcement structure for municipal drainage pipeline maintenance includes a working well 1. An inlet pipe 2 and an outlet pipe 3 are respectively installed on both sides of the lower part of the working well 1, allowing liquid to circulate. A circular steel plate wall 5 is fitted inside the inlet of the inlet pipe 2, and a circular top plate 18 is fitted inside the outlet of the outlet pipe 3. The steel plate wall 5 is installed outside the inlet pipe 2, sealing the inside of the inlet pipe 2. The outlet pipe 3 is installed inside the outlet pipe 3. A supporting structure is formed between the steel plate wall 5 and the top plate 18. An opening is provided inside the top plate 18 to facilitate maintenance personnel entering the outlet pipe 3 for repairs. Several sets of threaded rods 6 are fixedly connected to the outside of the steel plate wall 5, and a steel pipe 7 is threadedly connected to each set of threaded rods 6 in a spiral installation. There is a steel pipe 7, which moves in a threaded motion with the threaded rod 6, pushing the steel plate wall 5 to move outward, ensuring that the steel plate wall 5 is stably supported between the water inlet pipe 2 and the water outlet pipe 3. The middle of multiple steel pipes 7 is fixed to each other by a ring-shaped reinforcing rib 8. The lower part of the reinforcing rib 8 is connected to the fixed bracket 9 fixed at the bottom of the working well 1 by bolts. The reinforcing rib 8 is sleeved on the outside of the steel pipe 7 to improve the stability of the position of the steel pipe 7. At the same time, the fixed bracket 9 is fixed inside the working well 1 to improve the stability of the equipment position splicing. A patch micro-strain sensor 10 is attached to the outer wall of the steel pipe 7 and connected to a data line 11 extending to the outside of the working well 1. The inner side of the steel plate wall 5 is provided with an end reinforcement device for auxiliary support of the steel pipe 7. The reinforcement device further improves the compressive strength of the steel pipe 7.
[0018] Please see Figure 5 The reinforcement device includes a fixing plate 12 that is bolted to the inner side of the steel plate wall 5. The fixing plate 12 is provided with several sets of slide rails 13 corresponding to the positions of the threaded rod 6. A slider 14 is slidably installed in each set of slide rails 13. The fixing plate 12 is bolted to the inside of the steel plate wall 5 and fits against the middle of the steel plate wall 5 to maintain stability. At the same time, the slider 14 is movably sleeved inside the slide rails 13 installed on the outside of the fixing plate 12. The slider 14 is aligned with the position of the threaded rod 6. That is, after the slider 14 drives the clamp to be installed on the outside of the steel pipe 7, the slider 14 reinforces and supports the end of the steel pipe 7 to prevent damage to the end of the steel pipe 7 due to pressure between the steel pipe 7 and the threaded rod 6.
[0019] Please see Figure 5A diagonal brace 15 is hinged to the slider 14. The other end of the diagonal brace 15 is fitted with an mounting sleeve 16 via a hinge. A reinforcing sleeve 17 is rotatably fitted inside the mounting sleeve 16. The reinforcing sleeve 17 is movably fitted onto the end of the steel pipe 7. Due to the different distances between the inlet pipe 2 and the outlet pipe 3, the distance the steel plate wall 5 extends outward changes. At the same time, the contact surface of the threaded rod 6 inside the steel pipe 7 decreases. Therefore, by adjusting the position of the slider 14 inside the slide rail 13, and simultaneously pushing the mounting sleeve 16 to move the diagonal brace 15 assembly, the reinforcing sleeve 17 is fitted onto the outside of the end of the steel pipe 7, and the reinforcing sleeve 17 provides reinforcement and protection to the end of the steel pipe 7. At the same time, when the reinforcing sleeve 17 is fitted inside the mounting sleeve 16, the reinforcing sleeve 17 can rotate inside the mounting sleeve 16. Therefore, during the process of rotating the steel pipe 7 and pushing the steel plate wall 5 to move outward, the frictional resistance between the steel pipe 7 and the reinforcing sleeve 17 is reduced.
[0020] Please see Figure 3 The inside of the water inlet pipe 2 is filled with a sealing layer 4 inside the steel plate wall 5. The sealing layer 4 is installed inside the water inlet pipe 2 to block the liquid flowing inside the water inlet pipe 2. At the same time, the steel plate wall 5 is installed inside the water inlet pipe 2 and the water outlet pipe 3. During the maintenance of the drainage pipe, the water pressure is too high, which may cause the sealing layer 4 to be washed away and damaged, thus forming a maintenance space.
[0021] Please see Figure 3 The diameters of the steel plate wall 5 and the top plate 18 are larger than the diameters of the inlet pipe 2 and the outlet pipe 3. The top plate 18 has an opening inside to facilitate the passage of maintenance personnel. The steel plate wall 5 and the top plate 18 are installed on the outside of the inlet pipe 2 and the outlet pipe 3. The steel plate wall 5 seals the holes inside the inlet pipe 2. At the same time, since the steel plate wall 5 and the top plate 18 are supported between the inlet pipe 2 and the outlet pipe 3, they form a counter-support force, which improves the overall compressive strength of the steel plate wall 5. The opening inside the top plate 18 allows maintenance personnel to enter the interior of the outlet pipe 3 for maintenance.
[0022] Please see Figure 4 The reinforcing rib 8 is annular, with multiple mounting holes equidistantly spaced along its circumference for the steel pipes 7 to pass through. By creating holes inside the reinforcing rib 8 and allowing the steel pipes 7 to pass through it, the reinforcing rib 8 limits the position of the steel pipes 7 and reinforces the six sets of steel pipes 7. The lower end of the reinforcing rib 8 is fixed inside the working well 1 via a fixing bracket 9, ensuring the stability of the reinforcing rib 8 when installed inside the working well 1. Furthermore, when a set of steel pipes 7 bends due to pressure exceeding its bearing capacity, the reinforcing rib 8 effectively disperses the generated pressure, improving the overall compressive strength.
[0023] Please see Figure 2The end of the data cable 11 is connected to a display and a buzzer. By attaching the patch micro-strain sensor 10 to the outside of the steel pipe 7, the steel pipe 7 supports the two sets of steel plate walls 5. When the pressure generated by the liquid flowing through the water inlet pipe 2 increases, causing the steel pipe 7 to be unable to withstand the pressure and become damaged, the steel pipe 7 will bend. Therefore, the bending state of the steel pipe 7 is detected by the patch micro-strain sensor 10, and the detection signal is transmitted to the display via the data cable 11. The display can monitor the status of the steel pipe 7 in real time, and the buzzer can promptly remind the ground staff to reduce the occurrence of safety accidents.
[0024] In Example 1, when maintenance is required inside the working well 1 or the outlet pipe 3, a sealing layer 4 is installed inside the inlet pipe 2 to block the water flow inside the inlet pipe 2. Simultaneously, a steel plate wall 5 and a top plate 18 are installed inside the inlet pipe 2 and the outlet pipe 3. Depending on the distance between the inlet pipe 2 and the outlet pipe 3, rotating the steel pipe 7 causes a threaded movement between the steel pipe 7 and the threaded rod 6, which in turn pushes the steel plate wall 5 and the top plate 18 to be fixed inside the inlet pipe 2 and the outlet pipe 3. The steel plate wall 5 reinforces the sealing layer 4, and the top plate 18 facilitates access for maintenance personnel to the inside of the outlet pipe 3 for repairs, and includes reinforcing ribs. 8 is fitted onto the outside of the steel pipe 7 to further improve the positional stability of the steel pipe 7. The fixing bracket 9 installed at the lower end of the reinforcing rib 8 is fixed inside the working well 1. A patch micro-strain sensor 10 is attached to the outside of the steel pipe 7. The data line 11 extends to the outside. After the liquid inside the water inlet pipe 2 is continuously transported, the liquid accumulates inside the sealing layer 4, and the pressure on the sealing layer 4 increases. When the pressure exceeds the range, pressure is applied to the steel plate wall 5. When the pressure is too high, the pressure causes the steel pipe 7 to deform, and the patch micro-strain sensor 10 detects the deformation signal of the steel pipe 7 and drives the buzzer to sound an alarm.
[0025] Example 2: During the installation of the steel plate wall 5 and the top plate 18, a fixing plate 12 is fixed on the inner side of the steel plate wall 5 and the top plate 18, and the mounting sleeve 16 drives the reinforcing sleeve 17 to be sleeved on the outside of the steel pipe 7. When the working well 1 or the water outlet pipe 3 needs to be inspected, a sealing layer 4 is built inside the water inlet pipe 2. The sealing layer 4 blocks the water flow inside the water inlet pipe 2. At the same time, the steel plate wall 5 and the top plate 18 are installed on the inner side of the water inlet pipe 2 and the water outlet pipe 3. Due to the different distances between the water inlet pipe 2 and the water outlet pipe 3, the steel pipe 7 is rotated, and the steel pipe 7 and the threaded rod 6 are screwed together. The movement of the steel plate wall 5 and the top plate 18 can be used to fix them inside the water inlet pipe 2 and the water outlet pipe 3. The steel plate wall 5 reinforces the position of the sealing layer 4. When the steel pipe 7 rotates, the distance between the steel pipe 7 and the steel plate wall 5 changes. The position of the slider 14 inside the slide rail 13 can be adjusted, that is, the position of the mounting sleeve 16 outside the steel pipe 7 can be adjusted. At this point, the mounting sleeve 16 drives the reinforcing sleeve 17 to be fitted onto the end of the steel pipe 7, and the reinforcing sleeve 17 fixes the position of the steel pipe 7 outside, preventing the steel pipe 7 from being deformed and damaged due to pressure, and improving the service life of the equipment.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The present invention will not 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 sealing wall reinforcement structure for municipal drainage pipeline maintenance, comprising (1), including a working well (1), wherein an inlet pipe (2) and an outlet pipe (3) are respectively provided on both sides of the lower part of the working well (1), characterized in that: A circular steel plate wall (5) is attached to the inner side of the inlet pipe (2), and a circular top plate (18) is attached to the inner side of the outlet pipe (3). Several sets of threaded rods (6) are fixedly connected to the outer sides of the steel plate wall (5) and the top plate (18). A steel pipe (7) is threadedly connected to each set of threaded rods (6). The middle parts of the multiple steel pipes (7) are fixed to each other by an annular reinforcing rib (8). The lower part of the reinforcing rib (8) is connected to the fixed bracket (9) fixed at the bottom of the working well (1) by bolts. A patch micro-strain sensor (10) is attached to the outer wall of the steel pipe (7) and connected to a data line (11) extending to the outside of the working well (1). An end reinforcement device for auxiliary support of the steel pipe (7) is provided on the inner side of the steel plate wall (5).
2. The sealing wall reinforcement structure for municipal drainage pipeline maintenance according to claim 1, characterized in that: The reinforcement device includes a fixing plate (12) that is fixed to the inside of the steel plate wall (5) by bolts. The fixing plate (12) is provided with several sets of slide rails (13) corresponding to the position of the threaded rod (6). A slider (14) is slidably installed in each set of slide rails (13).
3. The sealing wall reinforcement structure for municipal drainage pipeline maintenance according to claim 2, characterized in that: The slider (14) is hinged with a diagonal brace (15), and the other end of the diagonal brace (15) is fitted with an installation sleeve (16) via a hinge. A reinforcing sleeve (17) is rotatably fitted inside the installation sleeve (16), and the reinforcing sleeve (17) is movably fitted to the end of the steel pipe (7).
4. The sealing wall reinforcement structure for municipal drainage pipeline maintenance according to claim 1, characterized in that: The inside of the water inlet pipe (2) is filled with a sealing layer (4) inside the steel plate wall (5).
5. The sealing wall reinforcement structure for municipal drainage pipeline maintenance according to claim 1, characterized in that: The diameter of the steel plate wall (5) and the top plate (18) is larger than the diameter of the inlet pipe (2) and the outlet pipe (3). The top plate (18) has an opening inside that facilitates the passage of maintenance personnel.
6. The sealing wall reinforcement structure for municipal drainage pipeline maintenance according to claim 1, characterized in that: The reinforcing rib (8) is a ring shape, with multiple mounting holes for the steel pipe (7) to pass through at equal intervals along its circumference.
7. The sealing wall reinforcement structure for municipal drainage pipeline maintenance according to claim 1, characterized in that: The end of the data cable (11) is connected to a display and a buzzer.