A manhole ring reinforcing structure

CN224769430UActive Publication Date: 2026-09-18HUBEI LUQIAO GRP MUNICIPAL CONSTR ENG CO LTD
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Patent Information

Application Number
CN202522351119.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-06
Publication Date
2026-09-18
Estimated Expiration
2035-11-06

AI Technical Summary

Technical Problem

[0005]针对现有技术的不足,本实用新型提供一种检查井井圈加固结构,主要解决井壁材料强度有限,砖与砖之间粘结力弱而在长期受压后砖体易松动,破坏,进而影响检查井整体稳定性的技术问题

Benefits of technology

本实用新型通过加固组件中的加强筋一穿接于井筒顶部并延伸至收口段,外侧填充混凝土填充层,加强筋二呈预设角度等距离设置在加强筋一外侧,并延伸至收口段内侧,使得加固组件能有效分散和传递路面车辆荷载等压力,增强了检查井的整体承载能力,避免因交通荷载过大导致井壁出现裂缝或破损,尤其适用于重载交通频繁的道路;

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Abstract

The utility model relates to road construction technical field, concretely discloses inspection well well ring reinforcing structure, including the inspection well for drainage system detection, the top of inspection well is provided with the well lid, the outside of inspection well is provided with one or more pipelines, the pipeline is adapted with drainage system, the inspection well includes well shaft, the bottom of well shaft is provided with the base, and the middle part of well shaft is provided with the close -up section, the utility model discloses through reinforcing component among the reinforcing rib one is worn and is extended to the close -up section in well shaft top, and the outside fills the concrete filling layer, and the reinforcing rib two is equidistant and sets up in the reinforcing rib one outside and extends to the inside of close -up section in the preset angle, so that reinforcing component can effectively disperse and transmit the pressure such as road surface vehicle load, strengthens the overall carrying capacity of inspection well, avoids the crack or breakage of well wall because of the traffic load too big, especially suitable for the road of heavy -duty traffic frequently.
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Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically to a manhole ring reinforcement structure. Background Technology

[0002] Inspection wells are structures installed to facilitate the maintenance and installation of underground infrastructure such as power supply, water supply, drainage, sewage, communications, cable television, gas pipes, and street light lines in cities. Inspection wells are generally located at pipe junctions, bends, changes in pipe diameter or slope, and at regular intervals on straight pipe sections, serving as auxiliary structures for convenient periodic inspections.

[0003] Traditional manhole wall thickness and reinforcement designs may not be able to withstand the increasing traffic loads. For example, on some roads with heavy traffic, manholes originally designed for ordinary vehicle loads may not be able to withstand the excessive lateral pressure when faced with heavy vehicles such as large trucks and engineering vehicles, and may easily crack or even break.

[0004] For example, domestic well wall materials are limited by their strength. For instance, in brick-built inspection wells, the bonding strength between bricks is relatively weak. Under long-term pressure, the bricks are prone to loosening, leading to damage to the well wall structure and affecting the overall stability of the inspection well. Based on this, this application provides a reinforcement structure for the well ring of an inspection well. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a manhole ring reinforcement structure, which mainly solves the technical problem that the manhole wall material has limited strength and the bonding force between bricks is weak, making the bricks prone to loosening and damage after long-term pressure, thus affecting the overall stability of the manhole.

[0006] The present invention relates to a manhole ring reinforcement structure, comprising a manhole for drainage system inspection, wherein a manhole cover is provided on the top of the manhole, and one or more pipes are provided on the outside of the manhole, the pipes being adapted to the drainage system; The inspection well includes a well casing, a base is provided at the bottom of the well casing, a constriction section is provided in the middle of the well casing, and a reinforcement component is provided on the inner side of the constriction section for reinforcing the inspection well. The reinforcement component includes a reinforcing rib, one end of which is inserted through the top of the well shaft, extends to the closing section of the well shaft, and is filled with a concrete filling layer on the outside. One or more reinforcing ribs are provided on the outer side of the first reinforcing rib, and one end of the second reinforcing rib extends to the inner side of the closing section.

[0007] As a further improvement of this utility model, a reinforcing plate is provided on the inner side of the closing section, and the outer side of the reinforcing plate is attached to the inner side of the closing section to reinforce the inner side of the closing section.

[0008] As a further improvement of this utility model, the outer side of the reinforcing plate is provided with one or more through holes, and is fixed to one end of the reinforcing rib by fasteners.

[0009] As a further improvement of this utility model, a reinforcing layer is provided on the outer side of the second reinforcing rib, and the reinforcing layer is in contact with the outer side of the concrete filling layer.

[0010] As a further improvement of this utility model, the outer side of the first reinforcing rib is hinged to one end of the second reinforcing rib to form a hinge joint, and it is in contact with the concrete filling layer.

[0011] As a further improvement of this utility model, one or more reinforcing strips are provided on the inner side of the reinforcing plate at equal intervals, which are used to reinforce the closing section of the inspection well in conjunction with the reinforcing plate.

[0012] As a further improvement of this utility model, the top of the inspection well is provided with a hollow area arranged in a ring array, which is adapted to the reinforcing rib and the concrete filling layer.

[0013] As a further improvement of this utility model, a connecting interface is provided on the outer side of the inspection well, the inner side of the connecting interface is adapted to the pipeline, and a reinforcing block is provided on the outer side of the connecting interface, the reinforcing block being adapted to the connecting interface and the outer side of the pipeline.

[0014] As a further improvement of this utility model, a reinforced filling area is provided below the pipe at the top of the base to reinforce the connection area between the pipe and the inspection well.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a reinforcing rib in the reinforcement component to pass through the top of the manhole and extend to the closing section, with a concrete filling layer on the outside. The reinforcing rib is set at a preset angle and at equal intervals on the outside of the reinforcing rib and extends to the inside of the closing section. This allows the reinforcement component to effectively distribute and transmit the pressure of road vehicle loads, thereby enhancing the overall load-bearing capacity of the manhole and preventing cracks or damage to the manhole wall due to excessive traffic loads. It is especially suitable for roads with heavy traffic. The reinforcing plate installed on the inner side of the closing section fits tightly against the closing section, and the reinforcing strips on its inner side are evenly spaced. The two work together to further enhance the structural strength of the closing section, improve the manhole's ability to resist pressure, and ensure the stability of the overall structure. The hinge joint formed by the hinge of stiffener one and stiffener two is in contact with the concrete filling layer, allowing stiffener one and stiffener two to move relative to each other at a certain angle. Under pressure, it can adapt to structural deformation, buffer the effects of changes in road pressure and slight soil settlement, prevent the stiffener from breaking due to rigid connection, and ensure the reliability of the stiffener connection and the stability of the overall structure. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional structural diagram of the inspection well of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the inspection well of this utility model; Figure 3 This is a top view schematic diagram of the inspection well structure of this utility model; Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Inspection well; 2. Manhole cover; 3. Pipeline; 4. Reinforced filling area; 5. Reinforcement components; 11. Base; 12. Connecting interface; 13. Closing section; 14. Hollow area; 15. Well shaft; 16. Reinforcing block; 17. Reinforcing plate; 51. Reinforcing bar 1; 52. Concrete filling layer; 53. Reinforcing layer; 54. Fastener; 55. Hinged joint; 56. Reinforcing bar 2; 57. Reinforcing strip. Detailed Implementation

[0018] The following illustrations will reveal several embodiments of the present invention. For clarity, many implementation details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the illustrations in a simple schematic manner.

[0019] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] Please see Figure 1 , Figure 2 as well as Figure 3The traditional manhole wall thickness and reinforcement design are insufficient to meet the increasing traffic loads. On roads with frequent heavy traffic, manholes designed for ordinary vehicle loads cannot withstand the excessive lateral pressure from large trucks, engineering vehicles, etc., and are prone to cracking or even damage.

[0021] Due to the limited strength of the well wall material, taking the brick-built inspection well 1 as an example, the bonding force between the bricks is weak. After long-term pressure, the bricks are prone to loosening, which leads to the destruction of the well wall structure and affects the overall stability of the inspection well 1. This application provides a well ring reinforcement structure for inspection well 1, including an inspection well 1 for drainage system inspection, a well cover 2 is provided on the top of the inspection well 1, and one or more pipes 3 are provided on the outside of the inspection well 1, the pipes 3 being adapted to the drainage system. The inspection well 1 includes a well shaft 15, a base 11 is provided at the bottom of the well shaft 15, a constriction section 13 is provided in the middle of the well shaft 15, and a reinforcement component 5 is provided on the inner side of the constriction section 13 for reinforcing the inspection well 1. The reinforcement component 5 includes a reinforcing rib 51, one end of which is inserted through the top of the well shaft 15 and extends to the closing section 13 of the well shaft 15, and is filled with a concrete filling layer 52 on the outside. One or more reinforcing ribs 56 are provided on the outer side of the first reinforcing rib 51 at a preset angle and at equal intervals, and one end of the second reinforcing rib 56 extends to the inner side of the closing section 13.

[0022] In this embodiment, the inspection well 1 is topped with a manhole cover 2, which serves to seal the well opening, prevent foreign objects from falling into the well, and bear the load of the road surface. One or more pipes 3 are installed on the outside of the inspection well 1. These pipes 3 are adapted to the drainage system to allow the inflow and outflow of sewage, rainwater, etc., ensuring the normal operation of the drainage system.

[0023] The inspection well 1 mainly consists of a well shaft 15 and a base 11. The base 11 is located at the bottom of the well shaft 15, providing a stable support foundation for the entire inspection well 1 and evenly transferring the load borne by the well shaft 15 to the ground. The well shaft 15 is the main body of the inspection well 1, with a tapering section 13 in its middle. The tapering section 13 is where the diameter of the well shaft 15 changes, typically to accommodate the size of the manhole cover 2 or to meet specific structural design requirements.

[0024] To reinforce the inspection well 1, a reinforcement component 5 is installed on the inner side of the constriction section 13. The reinforcement component 5 mainly consists of reinforcing rib 1 51 and reinforcing rib 2 56.

[0025] One end of the reinforcing rib 51 is inserted into the top of the manhole casing 15 and extends to the closing section 13 of the manhole casing 15. The reinforcing rib 51 is made of high-strength steel and has excellent tensile strength. When pressure such as vehicle loads on the road surface is transmitted to the manhole casing 15, the reinforcing rib 51 can effectively disperse and transmit these forces, reducing local stress concentration at the manhole opening. A concrete filling layer 52 is filled on the outside of the reinforcing rib 51. The concrete filling layer 52 is made of high-performance concrete material, which not only protects the reinforcing rib 51 from external environmental erosion and extends its service life, but also works in conjunction with the reinforcing rib 51 to jointly bear the pressure from the road surface and surrounding soil, enhancing the structural strength of the closing section 13.

[0026] Reinforcing rib 2 56 is located on the outside of reinforcing rib 1 51, and there may be one or more of them, arranged at a predetermined angle and at equal intervals. Reinforcing rib 2 56 is also made of high-strength steel, with one end extending to the inside of the closing section 13. The main function of reinforcing rib 2 56 is to further enhance the overall performance of the reinforcement component 5. By being arranged at a predetermined angle and at equal intervals, reinforcing rib 2 56 can disperse and transmit pressure in different directions, giving the closing section 13 good load-bearing capacity in all directions. For example, when vehicles on the road pass over the manhole from different directions, reinforcing rib 2 56 can effectively transmit and disperse the lateral pressure generated by the vehicle load, preventing the closing section 13 from cracking or breaking due to excessive local stress.

[0027] During construction, the base 11 and shaft 15 of manhole 1 are constructed first according to the design requirements. When the shaft 15 reaches the closing section 13, the reinforcing component 5 is installed. First, reinforcing rib 1 51 is accurately threaded through the top of the shaft 15 and extends to the closing section 13. Then, reinforcing rib 2 56 is installed according to the preset angle and spacing. After installation, the concrete filling layer 52 is poured on the outside of reinforcing rib 1 51. During concrete pouring, it is essential to ensure the concrete is vibrated and compacted to guarantee a strong bond between the concrete and reinforcing ribs 1 51 and rib 2 56, thus enabling the reinforcing component 5 to fully exert its reinforcing effect. Finally, the manhole cover 2 is installed, completing the construction of the entire manhole ring reinforcement structure for manhole 1.

[0028] By using this manhole ring reinforcement structure, the problem of insufficient structural strength of traditional manholes when facing increasing traffic loads can be effectively solved, thereby improving the service life and safety of manholes and ensuring the normal operation of the drainage system.

[0029] Please see Figure 2 , Figure 3 as well as Figure 4 A reinforcing plate 17 is provided on the inner side of the closing section 13. The outer side of the reinforcing plate 17 is attached to the inner side of the closing section 13 to reinforce the inner side of the closing section 13.

[0030] The outer side of the reinforcing plate 17 has one or more through holes and is fixed to one end of the reinforcing rib 56 by fasteners 54.

[0031] A reinforcing layer 53 is provided on the outer side of the reinforcing rib 2 56, and the reinforcing layer 53 is in contact with the outer side of the concrete filling layer 52.

[0032] The outer side of the first reinforcing bar 51 is hinged to one end of the second reinforcing bar 56 to form a hinge joint 55, and it is in contact with the concrete filling layer 52.

[0033] One or more reinforcing strips 57 are provided on the inner side of the reinforcing plate 17 at equal intervals, which are used to reinforce the closing section 13 of the inspection well 1 in conjunction with the reinforcing plate 17.

[0034] A reinforcing plate 17 is installed inside the constricted section 13 in the middle of the manhole shaft 15 of inspection well 1. The outer side of the reinforcing plate 17 fits tightly against the inner side of the constricted section 13, which can enhance the structural strength of the constricted section 13 and make it better resist external pressure, such as vehicle loads transmitted from the road surface and the compression of the surrounding soil. When heavy vehicles pass by on the road, the reinforcing plate 17 can distribute the pressure and prevent excessive local stress on the constricted section 13, which may cause cracks or damage, thereby ensuring the overall structural stability of inspection well 1.

[0035] One or more through holes are provided on the outer side of the reinforcing plate 17. These through holes are for easy connection with the second reinforcing rib 56. One end of the second reinforcing rib 56 is fixed to the through hole by a fastener 54. This connection method makes the reinforcing plate 17 and the second reinforcing rib 56 form an integral reinforcement system. When pressure is applied to the reinforcing plate 17, it can be further distributed to the entire reinforcement component 5 through the second reinforcing rib 56, which enhances the reinforcement effect. For example, when the pressure of a heavy vehicle is transmitted to the well shaft 15, it passes through the reinforcing plate 17 and the reinforcing plate 17 transmits part of the pressure to the second reinforcing rib 56. The second reinforcing rib 56 then transmits the pressure to other parts, avoiding pressure concentration in one place and improving the load-bearing capacity of the structure.

[0036] A reinforcing layer 53 is provided on the outer side of the second reinforcing rib 56, and the reinforcing layer 53 is in contact with the outer side of the concrete filling layer 52. The reinforcing layer 53 can further enhance the strength and stability of the second reinforcing rib 56. It is like the "armor" of the second reinforcing rib 56, which can better protect the second reinforcing rib 56 from the influence of external factors, such as groundwater erosion and soil friction. At the same time, the contact between the reinforcing layer 53 and the concrete filling layer 52 allows them to work together and share the pressure, which further improves the overall performance of the reinforcement component 5. During long-term use, the reinforcing layer 53 can slow down the damage rate of the second reinforcing rib 56, extend its service life, and ensure that the inspection well 1 can operate stably for a longer period of time.

[0037] The outer side of reinforcing rib 1 51 is hinged to one end of reinforcing rib 2 56 to form a hinge joint 55. This hinge joint 55 is in contact with the concrete filling layer 52, allowing reinforcing rib 1 51 and reinforcing rib 2 56 to move at a certain angle relative to each other, thus better adapting to structural deformation under pressure. When the road pressure changes or the soil around the manhole 1 experiences slight settlement, the hinge joint 55 acts as a buffer, preventing reinforcing rib 1 51 and reinforcing rib 2 56 from breaking due to their rigid connection. Simultaneously, the contact between the hinge joint 55 and the concrete filling layer 52 provides support and protection for the hinge joint 55, preventing external damage and ensuring the reliability of the connection between reinforcing rib 1 51 and reinforcing rib 2 56.

[0038] On the inner side of the reinforcing plate 17, one or more reinforcing strips 57 are evenly spaced. These reinforcing strips 57 act like the "ribs" of the reinforcing plate 17, further enhancing its strength. They work in conjunction with the reinforcing plate 17 to reinforce the closing section 13 of the inspection well 1. When pressure is applied to the reinforcing plate 17, the reinforcing strips 57 help to distribute the pressure and improve the plate's resistance to deformation. For example, under repeated vehicle loads, the reinforcing strips 57 can effectively prevent the reinforcing plate 17 from bending and deforming, thus better protecting the closing section 13 and ensuring the normal use of the inspection well 1.

[0039] Through the coordinated work of the above components, the reinforcement structure of the manhole ring of manhole 1 can significantly improve the structural strength and stability of manhole 1, effectively solve the problems that traditional manhole 1 is prone to when facing complex pressure environments, and ensure the normal operation of the urban drainage system.

[0040] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The top of the manhole 15 of the inspection well 1 is provided with a hollow region 14 arranged in a ring array, which is adapted to the reinforcing rib 51 and the concrete filling layer 52.

[0041] An interface 12 is provided on the outer side of the inspection well 1. The inner side of the interface 12 is adapted to the pipe 3. A reinforcing block 16 is provided on the outer side of the interface 12. The reinforcing block 16 is adapted to the interface 12 and the outer side of the pipe 3.

[0042] A reinforced filling area 4 is provided below the pipe 3 and on top of the base 11 to reinforce the connection area between the pipe 3 and the inspection well 1.

[0043] At the top of the manhole casing 15 of inspection well 1, hollow regions 14 are arranged in a ring array. These hollow regions 14 are specifically designed to accommodate the reinforcing rib 51 and the concrete filling layer 52. The reinforcing rib 51 needs to pass through the top of the manhole casing 15 to reach the termination section 13. The hollow regions 14 provide a channel for the installation of the reinforcing rib 51, ensuring it reaches its designated position accurately. After the reinforcing rib 51 is installed, concrete is filled into the hollow regions 14 to form the concrete filling layer 52. In this way, the reinforcing rib 51 and the concrete filling layer 52 work together. When vehicle loads from the road are transferred to the top of the manhole casing 15, the reinforcing rib 51 can distribute the pressure throughout the entire structure of the manhole casing 15, while the concrete filling layer 52 enhances the compressive strength of the top of the manhole casing 15, preventing damage due to excessive stress and improving the overall stability and load-bearing capacity of the inspection well 1.

[0044] An interface 12 is provided on the outside of the inspection well 1. The function of this interface 12 is to allow the pipe 3 to be smoothly connected to the inspection well 1. The inner dimensions of the interface 12 are adapted to the outer diameter of the pipe 3, just like a key and a lock, so that they can be tightly connected to ensure the sealing of the drainage system and prevent sewage leakage. In order to further strengthen the connection between the pipe 3 and the inspection well 1, a reinforcing block 16 is provided on the outside of the interface 12. The shape and size of the reinforcing block 16 are adapted to the outside of the interface 12 and the pipe 3, and tightly wrap around the connection. When the water in the drainage system flows into the inspection well 1 through the pipe 3, it will generate a certain impact force. The reinforcing block 16 can disperse this impact force and prevent the interface 12 from cracking due to stress concentration. At the same time, the reinforcing block 16 can also enhance the deformation resistance of the connection. Even if the surrounding soil settles slightly or is subjected to external pressure, it can ensure the stability of the connection between the pipe 3 and the inspection well 1 and ensure the normal operation of the drainage system.

[0045] Below pipe 3, at the top of base 11, a reinforced filling area 4 is provided. The main function of this reinforced filling area 4 is to reinforce the connection area between pipe 3 and manhole 1. The connection area between pipe 3 and manhole 1 is a relatively weak link in the entire drainage system, easily affected by various factors. When pipe 3 is filled with sewage, it exerts downward pressure on the connection area, and the surrounding soil also contributes to the impact. Filling the area below pipe 3 disperses the pressure transmitted from pipe 3, reducing the stress on the connection area. It also enhances the stability of the connection area, preventing displacement or deformation of pipe 3 due to uneven stress. During construction, high-strength filling materials, such as concrete or gravel, are typically used to ensure that the reinforced filling area 4 effectively fulfills its reinforcing function, extends the service life of the connection area between pipe 3 and manhole 1, and guarantees the long-term stable operation of the drainage system.

[0046] Through the design and configuration of the hollow area 14 at the top of the manhole 15, the reinforcing block 16 at the interface 12, and the reinforcing filling area 4 below the pipe 3, our manhole ring reinforcement structure can more effectively solve the problems faced by traditional manholes, improve the performance and reliability of manholes, and provide strong support for the normal operation of urban drainage systems.

[0047] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A manhole ring reinforcement structure, comprising a manhole (1) for drainage system inspection, wherein a manhole cover (2) is provided on the top of the manhole (1), and one or more pipes (3) are provided on the outside of the manhole (1), wherein the pipes (3) are adapted to the drainage system; Its features are: The inspection well (1) includes a well casing (15), a base (11) is provided at the bottom of the well casing (15), a constriction section (13) is provided in the middle of the well casing (15), and a reinforcement component (5) is provided on the inner side of the constriction section (13) for reinforcing the inspection well (1). The reinforcement component (5) includes a reinforcing rib (51), one end of which is inserted through the top of the well shaft (15), extends to the closing section (13) of the well shaft (15), and is filled with a concrete filling layer (52) on the outside. One or more reinforcing ribs (56) are provided on the outer side of the first reinforcing rib (51) at a preset angle and at equal distances. One end of the second reinforcing rib (56) extends to the inner side of the closing section (13).

2. A structure for reinforcing a manhole cover according to claim 1, characterized in that: A reinforcing plate (17) is provided on the inner side of the closing section (13). The outer side of the reinforcing plate (17) is attached to the inner side of the closing section (13) to reinforce the inner side of the closing section (13).

3. A structure for reinforcing a manhole cover according to claim 2, characterized in that: The outer side of the reinforcing plate (17) has one or more through holes and is fixed to one end of the reinforcing rib (56) by fasteners (54).

4. A structure for reinforcing a manhole cover according to claim 1, characterized in that: A reinforcing layer (53) is provided on the outer side of the second reinforcing rib (56), and the reinforcing layer (53) is in contact with the outer side of the concrete filling layer (52).

5. A structure for reinforcing a manhole cover according to claim 1, characterized in that: The outer side of the first reinforcing bar (51) is hinged to one end of the second reinforcing bar (56) to form a hinge joint (55), and is in contact with the concrete filling layer (52).

6. A structure for reinforcing a manhole cover according to claim 2, characterized in that: The inner side of the reinforcing plate (17) is provided with one or more reinforcing strips (57) spaced at equal intervals, which are used to reinforce the closing section (13) of the inspection well (1) in conjunction with the reinforcing plate (17).

7. A structure for reinforcing a manhole cover according to claim 1, characterized by: The top of the manhole (15) of the inspection well (1) is provided with a hollow area (14) arranged in a ring array, which is adapted to the reinforcing rib (51) and the concrete filling layer (52).

8. A structure for reinforcing a manhole cover according to claim 1, characterized by: The inspection well (1) has a connecting interface (12) on its outer side. The inner side of the connecting interface (12) is adapted to the pipe (3), and a reinforcing block (16) is provided on the outer side of the connecting interface (12). The reinforcing block (16) is adapted to the connecting interface (12) and the outer side of the pipe (3).

9. A structure for reinforcing a manhole cover according to claim 1, characterized in that: A reinforced filling area (4) is provided below the pipe (3) and above the base (11) to reinforce the connection area between the pipe (3) and the inspection well (1).