Edge reinforcement mounting structure for a manhole cover
By reinforcing the edge of the manhole cover base with an installation structure, using support blocks and movable components to stabilize the manhole cover, and combining chip removal and drainage groove designs, the problem of manhole covers easily shifting and sinking is solved, enhancing safety and drainage efficiency, and achieving the stability and practicality of the manhole cover.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIQIAO FOUNDRY IND CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-29
AI Technical Summary
When in use, existing manhole covers are prone to misalignment or sinking due to the pressure from pedestrians and vehicles and the ground, resulting in unevenness on the pedestrian walkway and posing a safety hazard.
An edge reinforcement installation structure for a manhole cover seat was designed, including a manhole cover, a manhole seat, a filter assembly, a movable assembly, and a fixed assembly. The manhole cover is fixed to the manhole seat by a support block, and the movable assembly enables the manhole cover to open and close flexibly. Combined with the chip removal assembly and drainage groove design, the structural stability and drainage effect are enhanced.
It effectively prevents manhole covers from loosening, shifting, or falling off under external forces, ensuring the safety of pedestrians and vehicles, clearing blockages in a timely manner, and avoiding problems such as poor drainage and water accumulation. It has a stable structure and is highly practical.
Smart Images

Figure CN224300034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manhole cover technology, specifically to an edge reinforcement installation structure for a manhole cover seat. Background Technology
[0002] Manhole covers are covers used to cover deep wells in roads or homes. Their main function is to prevent people or objects from falling in, and they also protect underground pipes, equipment, and passageways. Many manhole covers are needed in urban drainage systems, and they also collect rainwater from sidewalks during rainy days to reduce urban flooding.
[0003] When in use, existing manhole covers are prone to misalignment or sinking due to the pressure from pedestrians and vehicles, as well as the ground squeezing them. This creates unevenness on the pedestrian walkway, posing a safety hazard. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides an edge reinforcement installation structure for a manhole cover seat. This solves the problem that existing manhole covers are prone to misalignment or subsidence during use due to the pressure from pedestrians and vehicles, as well as the squeezing of the ground, which can create height differences on pedestrian walkways and pose safety hazards.
[0005] The technical solution adopted by this utility model is: an edge reinforcement installation structure for a manhole cover seat, including a manhole cover, a manhole seat, a filter assembly, a movable assembly, and a fixing assembly; the manhole cover is movably mounted on the manhole seat, the filter assembly is mounted on the manhole cover, and the movable assembly is positioned between the manhole cover and the manhole seat, the movable assembly driving the manhole cover to open and close on the manhole seat; the fixing assembly has a support block near the manhole seat, one end of the fixing assembly passes through the manhole cover and is fixed to the manhole seat by the support block, one end of the support block extends near the manhole seat and is embedded in the ground, the support block is used to support the manhole cover and the manhole seat; multiple sets of fixing assemblies are provided, each set of fixing assemblies has a support block at one end, the fixing assemblies are used to fix the manhole cover to the manhole seat, and the support blocks are used to support the manhole seat.
[0006] A further improvement to the above solution is that the manhole cover is provided with a water leakage groove, and there are multiple water leakage grooves, which are strip-shaped grooves; the manhole cover is provided with assembly grooves at both ends near the water leakage grooves, and the fixing components are set in the assembly grooves for fixing the manhole cover and the manhole base.
[0007] A further improvement to the above solution is that the manhole cover is provided with anti-slip texture near the drainage channel, and a water guide channel is provided near the anti-slip texture near the drainage channel, the water guide channel being used to guide the drainage channel.
[0008] A further improvement to the above solution is that the manhole cover is provided with an installation groove, and there are two sets of installation grooves. The two sets of installation grooves are arranged opposite each other at both ends of the manhole cover. Reinforcing blocks are provided on both sides of the manhole cover near the installation groove, and installation holes are provided on the installation groove near the reinforcing blocks.
[0009] A further improvement to the above scheme is that reinforcing plates are provided on both sides of the well base, and reinforcing ribs are provided on the reinforcing plates. Multiple reinforcing ribs are provided and arranged sequentially on the reinforcing plates, with one end of each reinforcing rib being placed on the well base.
[0010] A further improvement to the above solution is that an anti-sinking frame is provided on the inner wall of the well base near the reinforcing plate, and an anti-sinking step is provided on the anti-sinking frame, with one end of the well cover fastened to and abutting against the anti-sinking step.
[0011] A further improvement to the above scheme is that the reinforcing plate is provided with an assembly groove near the reinforcing rib, and multiple assembly grooves are provided, which are arranged opposite to each other on both sides of the reinforcing plate; the well base is provided with an anti-sinking plate near the bottom of the reinforcing plate, and the assembly groove is used to place the anti-sinking plate on the reinforcing plate.
[0012] A further improvement to the above scheme is that the well base is provided with an assembly protrusion relative to the mounting groove, the assembly protrusion is provided with an assembly area, and the well base is provided with assembly holes on both sides near the assembly area; one end of the movable component is provided on the assembly area, and the other end is provided in the mounting groove.
[0013] A further improvement to the above solution is that the movable component includes a hinge block, a first connecting rod, and a second connecting rod, with the first and second connecting rods respectively disposed at both ends of the hinge block; a first connecting nut is disposed on the first connecting rod, and a second connecting nut is disposed on the second connecting rod; one end of the first connecting rod passes through the mounting hole and is mounted on the well cover by the first connecting nut; one end of the second connecting rod passes through the assembly hole and is mounted on the well base by the second connecting nut.
[0014] A further improvement to the above solution is that the fixing assembly includes a fixing head, a fixing rod, an abutment ring, and a locking element. The support block is sleeved on the fixing rod, the fixing head is movably disposed on the fixing rod, the abutment ring is sleeved on the fixing rod near the support block, and the locking element is disposed on the fixing rod near the lower part of the support block. The fixing head drives the fixing rod to rotate, the fixing rod drives the support block to rotate, and the locking element is used for adjustment and locking.
[0015] The beneficial effects of this utility model are:
[0016] Compared to existing manhole covers, this utility model features a movable component positioned between the manhole cover and the manhole base, allowing the cover to open and close flexibly on the base, facilitating routine inspection and maintenance of underground facilities. The fixing component securely holds the cover to the base via a support block, one end of which is embedded in the ground, providing support not only for the cover but also for the base, enhancing the overall stability and robustness of the structure. This effectively prevents the cover from loosening, shifting, or even falling off under the influence of vehicle traffic or pedestrians, ensuring the safety of pedestrians and vehicles. Furthermore, the chip removal component drives a rotating plate to remove blockages from inside the cover, promptly clearing debris and preventing problems such as poor drainage and water accumulation in sewers due to blockages. The design is compact and highly practical. Attached Figure Description
[0017] Figure 1 This is a perspective view of the edge reinforcement installation structure of the manhole cover seat of this utility model;
[0018] Figure 2 This is a top view of the edge reinforcement installation structure of the manhole cover seat of this utility model;
[0019] Figure 3 for Figure 2 Sectional view at point AA;
[0020] Figure 4 This is a top view of the edge reinforcement installation structure of the manhole cover seat of this utility model;
[0021] Figure 5 This is an exploded view of the edge reinforcement installation structure of the manhole cover seat of this utility model.
[0022] Explanation of reference numerals in the attached drawings: 10. Manhole cover; 11. Movable groove; 12. Leakage groove; 13. Assembly groove; 14. Water guide groove; 15. Installation groove; 16. Reinforcing block; 17. Installation hole.
[0023] 20. Well base; 21. Reinforcing plate; 211. Assembly groove; 22. Reinforcing rib; 23. Anti-settlement frame; 24. Anti-settlement step; 25. Anti-settlement plate; 26. Assembly protrusion; 27. Assembly area; 28. Assembly hole.
[0024] Chip removal assembly 30, rotating head 31, rotating plate 32;
[0025] Movable component 40, hinge block 41, first connecting rod 42, first connecting nut 421, second connecting rod 43, second connecting nut 431;
[0026] Fixed component 50, support block 51, fixed head 52, fixed rod 53, abutment ring 54, locking element 55. Detailed Implementation
[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0030] like Figure 1-5As shown in the embodiment of this utility model, an edge reinforcement installation structure for a manhole cover 10 includes a manhole cover 10, a manhole base 20, a chip removal component 30, a movable component 40, and a fixed component 50. The manhole cover 10 is movably mounted on the manhole base 20. The chip removal component 30 is mounted on the manhole cover 10. The movable component 40 is positioned between the manhole cover 10 and the manhole base 20, and the movable component 40 drives the manhole cover 10 to open and close on the manhole base 20. The fixed component 50 has a support block 51 near the manhole base 20. One end of the fixed component 50 passes through the manhole cover 10 and fixes the manhole cover 10 to the manhole base 20 through the support block 51. One end of the support block 51 extends and embeds near the manhole base 20. The support block 51 is used to support the manhole cover 10 and the manhole base 20 when it is placed on the ground. Multiple sets of fixing components 50 are provided, and each set of fixing components 50 has a support block 51 at one end. The fixing components 50 are used to fix the manhole cover 10 to the manhole base 20 and support the manhole base 20 through the support block 51. The upper surface of the manhole cover 10 is provided with a movable groove 11, and one end of the chip removal component 30 is movably inserted into the movable groove 11. The chip removal component 30 includes a rotating head 31 and a rotating plate 32. The rotating plate 32 is disposed on the rotating head 31. The rotating head 31 is movably disposed in the movable groove 11 to drive the rotating plate 32 to rotate and remove the blockage inside the manhole cover 10. In this embodiment, the movable component 40 is positioned between the manhole cover 10 and the manhole base 20, enabling the manhole cover 10 to open and close flexibly on the manhole base 20, facilitating daily inspection and maintenance of underground facilities. The fixing component 50 securely fixes the manhole cover 10 to the manhole base 20 via the support block 51, with one end of the support block 51 embedded in the ground. This not only supports the manhole cover 10 but also provides support for the manhole base 20, enhancing the stability and robustness of the entire structure. This effectively prevents the manhole cover 10 from loosening, shifting, or even falling off under the influence of external forces such as vehicle traffic or pedestrians, ensuring the safety of pedestrians and vehicles. The chip removal component 30 drives the rotating plate 32 to rotate and remove blockages inside the manhole cover 10, promptly clearing debris from the manhole and preventing problems such as poor drainage and water accumulation caused by blockages in sewers. The structure is compact and highly practical.
[0031] like Figure 1 Only Figure 3As shown, a drainage groove 12 is provided on the manhole cover 10. Multiple drainage grooves 12 are provided, and each drainage groove 12 is a strip-shaped groove. Assembly slots 13 are provided at both ends of the manhole cover 10 near the drainage grooves 12. Fixing components 50 are disposed within the assembly slots 13 for fixing the manhole cover 10 and the manhole base 20. In this embodiment, the strip-shaped drainage grooves 12 design increase the drainage area, enabling rapid and effective drainage of rainwater and sewage into the manhole, preventing road surface water from affecting pedestrian and vehicle passage. The assembly slots 13 at both ends of the manhole cover 10 near the drainage grooves 12, and the installation of fixing components 50 for fixing the manhole cover 10 and the manhole base 20, greatly enhance the stability of the connection between the manhole cover 10 and the manhole base 20.
[0032] The manhole cover 10 has anti-slip textures near the drainage channel 12, and a water guide channel 14 is provided near the anti-slip textures to guide the drainage channel 12. In this embodiment, by providing anti-slip textures near the drainage channel 12, the friction between pedestrians or vehicles and the surface of the manhole cover 10 can be effectively increased, reducing the risk of slipping. Furthermore, the water guide channel 14 near the drainage channel 12 can quickly guide accumulated water to the drainage channel 12, preventing water from accumulating over a large area on the manhole cover 10. This not only prevents obstruction of traffic but also reduces the possibility of damage caused by long-term erosion of the manhole cover 10 and surrounding structures by accumulated water, thus optimizing the entire drainage system and extending the service life of the manhole cover 10 and related facilities.
[0033] The manhole cover 10 is provided with mounting grooves 15, and there are two sets of mounting grooves 15. The two sets of mounting grooves 15 are arranged opposite each other at both ends of the manhole cover 10. Reinforcing blocks 16 are provided on both sides of the manhole cover 10 near the mounting grooves 15, and mounting holes 17 are provided on the mounting grooves 15 near the reinforcing blocks 16. In this embodiment, the mounting grooves 15 make the installation of the manhole cover 10 with other components more stable and symmetrical, ensuring the balance of the installation and improving the overall structural stability. The reinforcing blocks 16 on both sides of the manhole cover 10 near the mounting grooves 15 enhance the strength of the manhole cover 10 in the installation area, effectively resisting pressure from above and various external impacts, reducing the risk of damage to the manhole cover 10 due to stress. The mounting holes 17 provided on the mounting grooves 15 near the reinforcing blocks 16 provide a precise positioning and fixing method for the installation of the movable component 40, making it easy for the movable component 40 to tightly connect the manhole cover 10 and the manhole base 20.
[0034] Reinforcing plates 21 are provided on both sides of the manhole cover 20. Multiple reinforcing ribs 22 are provided on the reinforcing plates 21, with one end of each rib attached to the manhole cover 20. In this embodiment, the reinforcing plates 21 enhance the overall structural strength of the manhole cover 20, enabling it to better withstand pressure from above and various external impacts, reducing the risk of damage due to excessive stress. The multiple sequentially arranged reinforcing ribs 22 on the reinforcing plates 21 further improve the reinforcement effect. The reinforcing ribs 22 disperse the stress acting on the reinforcing plates 21, preventing deformation due to excessive local stress. The connection stability between the reinforcing plates 21 and the manhole cover 20 is strengthened, making the manhole cover 20, reinforcing plates 21, and reinforcing ribs 22 form a synergistic structural unit, effectively ensuring the stability and durability of the manhole cover 10 and extending its service life.
[0035] An anti-sinking frame 23 is provided on the inner wall of the manhole base 20 near the reinforcing plate 21. An anti-sinking step 24 is provided on the anti-sinking frame 23, and one end of the manhole cover 10 is fastened and abutted against the anti-sinking step 24. In this embodiment, the presence of the anti-sinking frame 23 enhances the structural strength of the edge of the manhole base 20, effectively resisting pressure from above and reducing the possibility of the manhole base 20 sinking and deforming due to long-term stress. The anti-sinking step 24 fastens and abuts against one end of the manhole cover 10, further optimizing the connection stability between the manhole cover 10 and the manhole base 20.
[0036] like Figures 4 to 5 As shown, the reinforcing plate 21 has multiple mounting grooves 211 near the reinforcing rib 22, which are arranged opposite each other on both sides of the reinforcing plate 21. The well base 20 has an anti-sinking plate 25 located below the reinforcing plate 21, and the mounting grooves 211 are used to mount the anti-sinking plate 25 onto the reinforcing plate 21. In this embodiment, the multiple mounting grooves 211 on both sides of the reinforcing plate 21 enhance the stability of the connection between the reinforcing plate 21 and the anti-sinking plate 25; and the multiple mounting grooves 211 distribute the force, making the connection tighter and less prone to loosening, ensuring stable support for the anti-sinking plate 25 in all directions.
[0037] The manhole base 20 is provided with an assembly protrusion 26 relative to the mounting groove 15. An assembly area 27 is provided within the assembly protrusion 26, and assembly holes 28 are provided on both sides of the manhole base 20 near the assembly area 27. One end of the movable component 40 is disposed on the assembly area 27, and the other end is disposed in the mounting groove 15. In this embodiment, the assembly protrusion 26 and the assembly area 27 provide a precise and stable installation position for the movable component 40, allowing one end of the movable component 40 to be firmly placed therein, ensuring the accuracy and reliability of the entire structural connection. The assembly holes 28 provided on both sides of the manhole base 20 near the assembly area 27 are beneficial for further fixing the movable component 40 or related parts, enhancing the stability of the connection, and effectively preventing the movable component 40 from loosening. With one end of the movable component 40 in the assembly area 27 and the other end in the mounting groove 15, this layout allows the movable component 40 to move smoothly, enabling the manhole cover 10 to achieve edge reinforcement while possessing good flexibility and practicality.
[0038] The movable component 40 includes a hinge block 41, a first connecting rod 42, and a second connecting rod 43. The first connecting rod 42 and the second connecting rod 43 are respectively disposed at both ends of the hinge block 41. A first connecting nut 421 is disposed on the first connecting rod 42, and a second connecting nut 431 is disposed on the second connecting rod 43. One end of the first connecting rod 42 passes through the mounting hole 17 and is installed on the manhole cover 10 by the first connecting nut 421. One end of the second connecting rod 43 passes through the assembly hole 28 and is installed on the manhole base 20 by the second connecting nut. In this embodiment, the hinge block 41 connects the first connecting rod 42 and the second connecting rod 43, allowing them to cooperate flexibly and enhancing the adjustability and adaptability of the overall structure. The first connecting nut 421 and the second connecting nut 431 not only facilitate installation but also ensure the stability of the connection, making the edge reinforcement installation structure of the manhole cover 10 more stable and reliable, effectively resisting external forces, extending its service life, and ensuring the safety and normal use of road facilities.
[0039] The fixing assembly 50 includes a fixing head 52, a fixing rod 53, an abutment ring 54, and a locking element 55. The support block 51 is sleeved on the fixing rod 53. The fixing head 52 is movably disposed on the fixing rod 53. The abutment ring 54 is sleeved on the fixing rod 53 near the support block 51. The locking element 55 is disposed on the fixing rod 53 near the lower part of the support block 51. The fixing head 52 drives the fixing rod 53 to rotate, and the fixing rod 53 drives the support block 51 to rotate. The locking element 55 is used for adjustment and locking. In this embodiment, the fixing head 52 is movably mounted on the fixing rod 53, which can flexibly drive the fixing rod 53 to rotate, thereby causing the fixing rod 53 to drive the support block 51 to rotate. This facilitates the adjustment of the angle and position of the support block 51 to better adapt to different installation requirements. The abutment ring 54 is sleeved on the fixing rod 53 near the support block 51, which plays the role of positioning and stabilizing the support block 51. The locking element 55 is set near the bottom of the support block 51, which can be used to adjust and lock the support block 51 after its position is adjusted, ensuring that the support block 51 is firmly in the required position and enhancing the stability of the entire reinforced installation structure.
[0040] In the above embodiments, both the rotating head 31 and the fixed head 52 require a specific key to open.
[0041] A manhole cover 10 edge reinforcement installation structure includes a manhole cover 10, a manhole base 20, a chip removal assembly 30, a movable assembly 40, and a fixing assembly 50. The manhole cover 10 is movably mounted on the manhole base 20. The chip removal assembly 30 is mounted on the manhole cover 10. The movable assembly 40 is positioned between the manhole cover 10 and the manhole base 20, and the movable assembly 40 drives the manhole cover 10 to open and close on the manhole base 20. The fixing assembly 50 has a support block 51 near the manhole base 20. One end of the fixing assembly 50 passes through the manhole cover 10 and fixes the manhole cover 10 to the manhole base 20 through the support block 51. One end of the support block 51 extends near the manhole base 20 and is embedded in the ground. The support block 51 is used to support the manhole cover 10 and the manhole base 20; multiple sets of fixing components 50 are provided, and each set of fixing components 50 has a support block 51 at one end. The fixing components 50 are used to fix the manhole cover 10 to the manhole base 20 and support the manhole base 20 through the support blocks 51; the upper surface of the manhole cover 10 is provided with a movable groove 11, and one end of the chip removal component 30 is movably inserted into the movable groove 11; the chip removal component 30 includes a rotating head 31 and a rotating plate 32, and the rotating plate 32 is disposed on the rotating head 31; the rotating head 31 is movably disposed in the movable groove 11 to drive the rotating plate 32 to rotate and remove the blockage inside the manhole cover 10. In this embodiment, the movable component 40 is positioned between the manhole cover 10 and the manhole base 20, enabling the manhole cover 10 to open and close flexibly on the manhole base 20, facilitating daily inspection and maintenance of underground facilities. The fixing component 50 securely fixes the manhole cover 10 to the manhole base 20 via the support block 51, with one end of the support block 51 embedded in the ground. This not only supports the manhole cover 10 but also provides support for the manhole base 20, enhancing the stability and robustness of the entire structure. This effectively prevents the manhole cover 10 from loosening, shifting, or even falling off under the influence of external forces such as vehicle traffic or pedestrians, ensuring the safety of pedestrians and vehicles. The chip removal component 30 drives the rotating plate 32 to rotate and remove blockages inside the manhole cover 10, promptly clearing debris from the manhole and preventing problems such as poor drainage and water accumulation caused by blockages in sewers. The structure is compact and highly practical.
[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An edge reinforcement installation structure for a manhole cover seat, characterized in that: The system includes a manhole cover, a manhole base, a filter assembly, a movable assembly, and a fixing assembly. The manhole cover is movably mounted on the manhole base, the filter assembly is mounted on the manhole cover, and the movable assembly is positioned between the manhole cover and the manhole base. The movable assembly drives the manhole cover to open and close on the manhole base. The fixing assembly has a support block near the manhole base. One end of the fixing assembly passes through the manhole cover and is fixed to the manhole base by the support block. One end of the support block extends near the manhole base and is embedded in the ground. The support block is used to support the manhole cover and the manhole base. The fixing components are provided in multiple sets, and each set of fixing components has a support block at one end. The fixing components are used to fix the manhole cover to the manhole base and to support the manhole base through the support blocks.
2. The edge reinforcement installation structure for the manhole cover seat according to claim 1, characterized in that: The manhole cover is provided with a water leakage groove, and there are multiple water leakage grooves, which are strip-shaped grooves; the manhole cover is provided with assembly grooves at both ends near the water leakage grooves, and the fixing components are set in the assembly grooves for fixing the manhole cover and the manhole base.
3. The edge reinforcement installation structure for the manhole cover seat according to claim 2, characterized in that: The manhole cover has anti-slip textures near the drainage channel, and a water guide channel is provided near the anti-slip textures near the drainage channel. The water guide channel is used to guide the drainage channel.
4. The edge reinforcement installation structure for the manhole cover seat according to claim 1, characterized in that: The manhole cover is provided with an installation groove, and there are two sets of installation grooves. The two sets of installation grooves are arranged opposite each other at both ends of the manhole cover. Reinforcing blocks are provided on both sides of the manhole cover near the installation groove, and installation holes are provided on the installation groove near the reinforcing blocks.
5. The edge reinforcement installation structure for the manhole cover seat according to claim 1, characterized in that: The well base is provided with reinforcing plates on both sides, and reinforcing ribs are provided on the reinforcing plates. Multiple reinforcing ribs are provided and arranged sequentially on the reinforcing plates. One end of each reinforcing rib is located on the well base.
6. The edge reinforcement installation structure for the manhole cover seat according to claim 5, characterized in that: An anti-sinking frame is provided on the inner wall of the well base near the reinforcing plate, and an anti-sinking step is provided on the anti-sinking frame. One end of the well cover is fastened and abuts against the anti-sinking step.
7. The edge reinforcement installation structure for the manhole cover seat according to claim 6, characterized in that: The reinforcing plate is provided with an assembly groove near the reinforcing rib, and there are multiple assembly grooves, which are arranged opposite each other on both sides of the reinforcing plate; the well base is provided with an anti-sinking plate near the bottom of the reinforcing plate, and the assembly groove is used to place the anti-sinking plate on the reinforcing plate.
8. The edge reinforcement installation structure for the manhole cover seat according to claim 4, characterized in that: The well base is provided with an assembly protrusion relative to the mounting groove, and an assembly area is provided in the assembly protrusion. The well base is provided with assembly holes on both sides near the assembly area. One end of the movable component is provided on the assembly area, and the other end is provided in the mounting groove.
9. The edge reinforcement installation structure for the manhole cover seat according to claim 1, characterized in that: The movable component includes a hinge block, a first connecting rod, and a second connecting rod, with the first and second connecting rods respectively disposed at both ends of the hinge block; a first connecting nut is disposed on the first connecting rod, and a second connecting nut is disposed on the second connecting rod; one end of the first connecting rod passes through a mounting hole and is mounted on the manhole cover by the first connecting nut; one end of the second connecting rod passes through an assembly hole and is mounted on the manhole base by the second connecting nut.
10. The edge reinforcement installation structure for the manhole cover seat according to claim 1, characterized in that: The fixing assembly includes a fixing head, a fixing rod, an abutment ring, and a locking element. The support block is sleeved on the fixing rod, the fixing head is movably disposed on the fixing rod, the abutment ring is sleeved on the fixing rod near the support block, and the locking element is disposed on the fixing rod near the lower part of the support block. The fixing head drives the fixing rod to rotate, the fixing rod drives the support block to rotate, and the locking element is used for adjustment and locking.