Assembly type municipal road inspection well quick repair prefabricated part
The prefabricated components for rapid repair of municipal road inspection wells, designed with mirrored interlocking and diversion channels, solve the problems of insufficient modular reconfiguration capability and weak dynamic service adaptability, achieving rapid repair and efficient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN HEATING POWER ENG CO
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-12
AI Technical Summary
Existing prefabricated municipal road manholes suffer from insufficient modular reconstruction capabilities and weak dynamic service adaptability during rapid repair, replacement, and maintenance. Traditional connection methods are prone to disassembly failure and environmental pollution.
It adopts components such as connecting tubes, left connecting blocks, right connecting blocks, diverter tubes, and inner partitions. Through mirror fitting and guide groove design, it can achieve rapid docking and directional drainage. Combined with bolt fastening and sealing fitting, it forms a multi-stage filtration barrier and supports modular replacement.
It achieves anti-leakage performance of connection nodes during rapid repair, shortens the road excavation and repair cycle, and improves maintenance efficiency and environmental friendliness.
Smart Images

Figure CN224227947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of prefabricated municipal road manholes, specifically a prefabricated component for rapid repair of prefabricated municipal road manholes. Background Technology
[0002] Existing prefabricated municipal road manholes suffer from structural defects in terms of rapid repair, replacement, and maintenance efficiency, primarily manifested in insufficient modular reconfiguration capabilities and weak dynamic service adaptability. Traditional manholes utilize cast-in-place concrete or prefabricated structures, whose rigid connection system necessitates the dismantling of the entire structure when local damage occurs. This stems from the lack of independent disassembly mechanical interfaces and stress isolation designs between modular units. Conventional solutions enhance disassembly by adding flanges or bolts, but flange connection accuracy depends on prefabrication error control, and bolt corrosion easily leads to disassembly failure. Furthermore, the dismantling and regeneration process still generates construction waste and dust pollution. Current solutions restore sealing through grouting or external steel reinforcement, but grouting materials have low bonding strength with old concrete, leading to secondary cracking, while external steel reinforcement requires traffic interruption and damages the road structure. Maintenance efficiency is limited by insufficient functional expansion adaptability. Therefore, there is an urgent need for a prefabricated component for rapid repair of prefabricated municipal road manholes to address these issues. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a prefabricated component for rapid repair of prefabricated municipal road inspection wells, thereby solving the problems mentioned in the background technology.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a prefabricated component for rapid repair of prefabricated municipal road inspection wells, including: a connecting pipe and an inner partition net, and a set of diversion cylinders for fitting and connecting to the left connecting block on the right side, and a set of right connecting blocks for diverting sewage from the upper end of the diversion cover on the right side of the diversion cylinder.
[0005] The left and right connecting blocks are mirror images of each other with the center of the flow divider as the axis. The top view of the left connecting block is a rectangular arc-shaped inner groove structure. The right side of the left connecting block and the left side of the right connecting block are respectively provided with a set of connecting inserts for sealing and fitting with the left and right sides of the flow divider. The two sets of connecting inserts are respectively sealed and fitted with the interior of a first flow divider and a second flow divider. The two sets of connecting inserts are integral with a set of left connecting blocks and a set of right connecting blocks.
[0006] As a preferred embodiment, each of the two sets of connecting inserts is provided with a set of guide grooves, and both the left and right connecting blocks are provided with a set of internal guide cavities for guiding external sewage. Both the first and second diversion ports are arc-shaped concave structures.
[0007] In a preferred embodiment, the first and second diversion ports are respectively connected to a set of guide channels and a set of internal guide cavities. The upper end of the left connecting block is provided with two sets of seepage nets (first type) for direct infiltration of surface water, and the upper end of the right connecting block is provided with two sets of seepage nets (second type) for direct infiltration of surface water. In actual use, before construction, the left and right connecting blocks are arranged symmetrically on both sides of the well to be repaired. Pre-calibration is performed by connecting the insert to the two diversion ports at both ends of the diversion cylinder to ensure the arc-shaped concave shape. The mating surface fits tightly with the sealing gasket. During installation, the connecting base is sunk into the well base using a vertical insertion method. The inner core tube is connected to the existing drainage pipe through the built-in guide groove. The outer and inner meshes are wrapped in layers to form a filter barrier. Ground seepage water quickly seeps in through the two sets of seepage mesh one at the top of the left connecting block and seepage mesh two on the right connecting block. It flows into the main body of the diversion cylinder through the inner guide cavity. Under the guidance of the arc-shaped concave surface of the diversion port inside the diversion cylinder, the sewage is separated to both sides along the guide groove and enters the inner guide cavity of the left and right connecting blocks through diversion ports one and two respectively to complete the directional drainage.
[0008] In a preferred embodiment, both the first and second seepage nets are provided with a set of filter screens to block impurities inside the sewage. The left side of the left connecting block is provided with two sets of connecting pipes for splicing and communicating with other right connecting blocks. The right side of the right connecting block is provided with two sets of grooves for sealing and fitting with the connecting pipes.
[0009] As a preferred embodiment, the upper end of the diversion cylinder is provided with a main cover body that is easy for workers to disassemble and repair. The upper end of the main cover body is a hollow structure, and five sets of circular leakage holes are provided in the middle position. Inside the leakage holes, there is a set of outer mesh for isolating impurities inside the sewage.
[0010] In a preferred embodiment, several sets of seepage channels are provided on the front and rear sides of the leakage hole to isolate impurities inside the sewage, and a set of diversion covers for diverting sewage is provided on the upper end of the main cover, the diversion covers being an arc-shaped structure.
[0011] In a preferred embodiment, the lower end of the diversion cylinder is provided with a set of connecting bases for supporting the lower end of the inner core tube. On the left and right sides of the connecting bases, there are sets of inner meshes for filtering sewage. At the center of the connecting bases, there is a set of inner core tubes for directly guiding sewage into the main cover. The diameter of the inner core tube in plan view is the same as the length of the diameter of the main cover in plan view.
[0012] The beneficial effects of this utility model are:
[0013] The inner core tube is connected to the existing drainage pipe through the built-in guide channel. The outer and inner partitions are wrapped in layers to form a filter barrier. Ground seepage water quickly seeps in through the two sets of seepage nets at the top of the left connecting block and the seepage nets at the right connecting block. It flows into the main body of the diversion cylinder through the inner guide cavity. Under the guidance of the arc concave surface of the diversion port in the diversion cylinder, the sewage is separated to both sides along the guide channel and enters the inner guide cavity of the left and right connecting blocks through the diversion ports one and two respectively to complete the directional drainage.
[0014] During routine maintenance, the drainage cover can be lifted to remove impurities trapped by the outer mesh. The concave structure of the diversion port, combined with the high-pressure water gun, enables reverse flushing. The entire component relies on the mirror embedding characteristics of the connecting head to achieve simultaneous operation of seepage separation and sewage diversion. The dual mechanism of bolt tightening and sealing ensures the anti-leakage performance of the connection nodes. When replacing the modular components, it is only necessary to disconnect the connecting pipe and loosen the fixing bolts of the diversion cylinder to replace the local components, which greatly shortens the road excavation and repair cycle. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the front top view of the present invention;
[0016] Figure 2 This is a top view of the front structural position of the distributor tube and the main cover in this utility model;
[0017] Figure 3 This is a top view of the front side of the right connecting block in this utility model;
[0018] Figure 4 This is a front-view or top-view structural diagram of the inner core tube in this utility model;
[0019] In the picture:
[0020] 100-Connecting tube, 110-Left connecting block, 120-Infiltration net one, 130-Drainage cover, 140-Upper seepage trough, 150-Outer partition net, 160-Main cover body, 170-Diverter cylinder, 180-Right connecting block, 190-Infiltration net two, 200-Connecting groove, 210-Diverter port one, 220-Diverter port two, 230-Connecting insert, 240-Inner core tube, 250-Connecting base, 260-Inner partition net. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 4This utility model provides a technical solution: a prefabricated component for rapid repair of a prefabricated municipal road inspection well, including: a connecting pipe 100, a left connecting block 110, a diversion cylinder 170 and an inner partition net 260. The left connecting block 110 is provided with a set of diversion cylinders 170 for fitting and connecting to it on the right side. The diversion cylinder 170 is provided with a set of right connecting blocks 180 for diverting sewage from the upper end of the diversion cover 130 on the right side.
[0023] The left connecting block 110 and the right connecting block 180 are mirror images of each other with the center position of the diverter 170 as the axis. The top view of the cross-section of the left connecting block 110 is a rectangular arc-shaped inner groove structure. The right side of the left connecting block 110 and the left side of the right connecting block 180 are respectively provided with a set of connecting inserts 230 for sealing and fitting with the left and right sides of the diverter 170. The two sets of connecting inserts 230 are respectively sealed and fitted with the interior of a first diverter 210 and a second diverter 220. The two sets of connecting inserts 230 are integral with a set of left connecting blocks 110 and a set of right connecting blocks 180.
[0024] Each of the two sets of connecting inserts 230 has a set of guide grooves inside. The left connecting block 110 and the right connecting block 180 each have a set of internal guide cavities for guiding external sewage. The first diversion port 210 and the second diversion port 220 are both arc-shaped concave structures.
[0025] Diversion port 1 (210) and diversion port 2 (220) are respectively connected to a set of guide channels and a set of internal guide cavities. The upper end of the left connecting block 110 is equipped with two sets of seepage nets 120 for direct infiltration of surface water, and the upper end of the right connecting block 180 is equipped with two sets of seepage nets 190 for direct infiltration of surface water. In actual use, before construction, the left connecting block 110 and the right connecting block 180 are arranged symmetrically on both sides of the well to be repaired. Pre-calibration is performed by connecting the insert 230 to the diversion port 210 and the diversion port 220 at both ends of the diversion cylinder 170 to ensure a tight fit between the arc-shaped concave fitting surface and the sealing gasket. During installation, the connecting base 250 is inserted vertically into the well base. The inner core tube 240 is connected to the existing drainage pipe through the built-in guide channel. The outer partition net 150 and the inner partition net 260 are wrapped in layers to form a filter barrier. Ground seepage water quickly seeps in through the two sets of seepage nets 120 on the upper end of the left connecting block 110 and seepage nets 190 on the right connecting block 180. It flows into the main body of the diversion cylinder 170 through the inner guide cavity. Under the guidance of the arc concave surface of the diversion port inside the diversion cylinder 170, the sewage is separated to both sides along the guide channel and enters the inner guide cavity of the left and right connecting blocks 180 through the diversion ports 110 and 210 respectively to complete the directional drainage.
[0026] Please see Figures 1-4 As a second embodiment of this utility model: based on the description in the above embodiments, further,
[0027] Both the seepage net 120 and the seepage net 2 190 are equipped with a set of filter screens to block impurities inside the sewage. The left side of the left connecting block 110 is equipped with two sets of connecting pipes 100 for splicing and connecting with other right connecting blocks 180. The right side of the right connecting block 180 is equipped with two sets of connecting grooves 200 for sealing and fitting with the connecting pipes 100.
[0028] The upper end of the diversion cylinder 170 is provided with a main cover 160 that is easy for staff to disassemble and repair. The upper end of the main cover 160 is a hollow structure, and there are five sets of circular leakage holes in the middle. Inside the leakage holes is a set of outer mesh 150 for isolating impurities inside the sewage.
[0029] Several sets of seepage troughs 140 are provided on the front and rear sides of the leakage hole to isolate impurities inside the sewage. A set of diversion covers 130 is provided on the upper end of the main cover 160 to divert sewage. The diversion cover 130 has an arc-shaped structure.
[0030] Inside the diversion cylinder 170, at its lower end, is a set of connecting bases 250 for supporting the lower end of the inner core tube 240. On either side of the connecting bases 250 are sets of inner meshes 260 for filtering sewage. At the center of the connecting bases 250 is a set of inner core tubes 240 for directly guiding sewage into the main cover 160. The diameter of the inner core tube 240 in its top-view cross-section is the same as the length of the diameter in its top-view cross-section of the main cover 160. In actual use, the main cover 160 and the diversion cover 130 are fixed with flange bolts, and the connecting pipe 100 is simultaneously screwed in to form an axial seal with the existing pipeline. The seepage mesh and the receiving groove 200 cooperate to form a multi-stage interception structure, preventing... After the sediment buildup and blockage are repaired, the prefabricated sealing strip of the connecting insert 230 achieves seamless connection with the existing well wall. The outer side of the seepage net is covered with a gravel layer to enhance the surface water infiltration efficiency. During routine maintenance, the drainage cover 130 can be lifted to remove the outer partition net 150 that traps impurities. The concave structure of the diversion port, together with the high-pressure water gun, enables reverse flushing. The entire component relies on the mirror embedding characteristics of the connecting insert 230 to achieve simultaneous operation of infiltration separation and sewage diversion. The dual mechanism of bolt tightening and sealing ensures the anti-leakage performance of the connection node. When replacing the modular components, it is only necessary to disconnect the connecting pipe 100 and loosen the fixing bolts of the diversion cylinder 170 to achieve partial component replacement, which greatly shortens the road excavation and repair cycle.
[0031] The above description is merely an illustration of some principles of this utility model. This specification is not intended to limit this utility model to the specific structure and applicable scope shown. Therefore, all possible modifications and equivalents that may be used fall within the scope of the patent application of this utility model.
[0032] Except for the technical features described in the specification, all other technical features are known to those skilled in the art.
Claims
1. A prefabricated component for rapid repair of prefabricated municipal road inspection wells, characterized in that: It includes a connecting tube (100), a left connecting block (110), a diversion cylinder (170) and an inner partition (260). The left connecting block (110) has a set of diversion cylinders (170) for fitting and connecting to it on the right side. The diversion cylinder (170) has a set of right connecting blocks (180) for diverting sewage from the upper end of the diversion cover (130) on the right side. The left connecting block (110) and the right connecting block (180) are mirror images of each other with the center position of the diverter (170) as the axis. The top view of the left connecting block (110) is a rectangular arc-shaped inner groove structure. The right side of the left connecting block (110) and the left side of the right connecting block (180) are respectively provided with a set of connecting inserts (230) for sealing and fitting with the left and right sides of the diverter (170). The two sets of connecting inserts (230) are respectively sealed and fitted with the interior of a first diverter (210) and a second diverter (220). The two sets of connecting inserts (230) are integral with a set of left connecting blocks (110) and a set of right connecting blocks (180).
2. The prefabricated component for rapid repair of prefabricated municipal road inspection wells according to claim 1, characterized in that: Each of the two sets of connecting inserts (230) is provided with a set of guide grooves. The left connecting block (110) and the right connecting block (180) are each provided with a set of internal guide cavities for guiding external sewage. The first diversion port (210) and the second diversion port (220) are both arc-shaped concave structures.
3. A prefabricated component for rapid repair of prefabricated municipal road inspection wells according to claim 2, characterized in that: The first diversion port (210) and the second diversion port (220) are respectively connected to a set of guide channels and a set of inner guide cavities. The upper end of the left connecting block (110) is provided with two sets of seepage nets (120) for direct infiltration of surface water. The upper end of the right connecting block (180) is provided with two sets of seepage nets (190) for direct infiltration of surface water.
4. A prefabricated component for rapid repair of prefabricated municipal road inspection wells according to claim 3, characterized in that: Both the first seepage net (120) and the second seepage net (190) are equipped with a set of filter screens to block impurities inside the sewage. The left side of the left connecting block (110) is equipped with two sets of connecting tubes (100) for splicing and connecting with other right connecting blocks (180). The right side of the right connecting block (180) is equipped with two sets of connecting grooves (200) for sealing and fitting with the connecting tubes (100).
5. A prefabricated component for rapid repair of prefabricated municipal road inspection wells according to claim 4, characterized in that: The upper end of the diversion cylinder (170) is provided with a main cover (160) that is easy for workers to disassemble and repair. The upper end of the main cover (160) is a hollow structure, and five sets of circular leakage holes are provided in the middle. Inside the leakage holes is a set of outer mesh (150) for isolating impurities inside the sewage.
6. A prefabricated component for rapid repair of prefabricated municipal road inspection wells according to claim 5, characterized in that: The front and rear sides of the leak hole are provided with several sets of seepage troughs (140) for isolating impurities inside the sewage. The upper end of the main cover (160) is provided with a set of diversion covers (130) for diverting sewage. The diversion covers (130) are arc-shaped structures.
7. A prefabricated component for rapid repair of prefabricated municipal road inspection wells according to claim 1 or 5, characterized in that: The lower end of the diversion tube (170) is provided with a set of connecting bases (250) for supporting the lower end of the inner core tube (240). The connecting bases (250) are provided with a set of inner meshes (260) for filtering sewage on the left and right sides respectively. The connecting bases (250) are provided with a set of inner core tubes (240) for directly guiding sewage into the main cover (160) at the center. The diameter of the inner core tube (240) in the top view is the same as the length of the diameter of the main cover (160) in the top view.