Adjustable anti-sedimentation well lid for road maintenance

By using a combination of damping telescopic rods, springs, and rubber layers in the manhole cover, the adjustability and impact resistance of the anti-settlement manhole cover are solved, achieving a tight fit between the manhole cover and the road surface and earthquake resistance, thereby improving service life and ease of maintenance.

CN224063516UActive Publication Date: 2026-03-31RUYI CONSTR DEV (GUANGDONG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing anti-settlement manhole covers are inadequate in terms of adjustability, structural stability, and impact resistance, resulting in reduced fit between the manhole cover and the road surface, making them prone to abnormal noises and lifting, and easily damaged.

Method used

The shock-absorbing structure uses a damping telescopic rod and spring, combined with an adjustment mechanism of long bolts and threaded holes, along with an openable protective manhole cover and a rubber layer, to achieve automatic adjustment and impact resistance of the manhole cover.

Benefits of technology

It effectively reduces noise and warping between the manhole cover and the road surface, improves structural stability and impact resistance, extends service life, and increases maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable anti-sedimentation well lid for road maintenance, which relates to the technical field of well lids for road maintenance and comprises a base, a positioning block is arranged on the inner side of the base, a frame is arranged above the base, a positioning groove matched with the positioning block is arranged inside the frame, and threaded holes communicated with each other are arranged inside the frame and at the top of the base. Multiple sets of pressing plates are arranged above the threaded holes in the top of the base at one end, adjusting mechanisms are arranged above the pressing plates, the base at the other end and the frame are connected to the threaded holes through short bolts, multiple sets of mounting holes are formed in the positions, located on the side faces of the short bolts, of the top of the frame, damping mechanisms are arranged in the mounting holes, and protective well lids capable of being opened and closed are arranged at the tops of the mounting holes. The utility model is favorable for guaranteeing the driving safety, reducing the road surface damage, reducing the road maintenance cost and improving the working efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of highway maintenance manhole cover technology, and in particular to an adjustable anti-settlement manhole cover for highway maintenance. Background Technology

[0002] In modern society, highways serve as a vital link connecting cities and rural areas and promoting economic development, making their maintenance and management particularly important. Highway maintenance is not only related to driving safety but also closely linked to the quality of life of the public. Among the many highway maintenance tools and facilities, manhole covers are an indispensable part of highway infrastructure. They not only meet the passage needs of vehicles and pedestrians but also directly relate to the safety and stability of roads. In recent years, with the widespread application of adjustable anti-settlement manhole cover structures, significant results have been achieved in solving problems such as manhole cover settlement, noise, and damage. However, no technology or product can be perfect in practical applications, and adjustable anti-settlement manhole cover structures also have some shortcomings.

[0003] The existing anti-settlement manhole covers are not good in terms of adjustability. When the road surface settles due to various reasons, the fit between the manhole cover and the road surface decreases, which can easily cause abnormal noises or even cause the cover to lift up. This not only affects driving safety but also damages the overall aesthetics of the road surface. In addition, some anti-settlement manhole covers are easily damaged when subjected to external impacts, such as when heavy vehicles pass by, and lack sufficient pressure and impact resistance. Utility Model Content

[0004] This utility model proposes an adjustable anti-settlement manhole cover for highway maintenance, which solves the problems of insufficient adjustability, structural stability, and impact resistance of existing adjustable anti-settlement manhole covers for highway maintenance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable anti-settlement manhole cover for highway maintenance includes a base, a positioning block on the inner side of the base, and a frame on top of the base. The frame has a positioning groove that matches the positioning block, and a threaded hole that communicates with the top of the base is provided inside the frame. At one end of the base, above the threaded hole, multiple sets of pressure plates are provided, and an adjustment mechanism is provided above the pressure plates. At the other end, the base and the frame are connected to the threaded hole by short bolts, and multiple sets of mounting holes are provided on the side of the short bolts on the top of the frame. A shock-absorbing mechanism is provided inside the mounting holes, and an openable protective manhole cover is provided on top of the mounting holes.

[0007] Preferably, the base has an outer mounting plate, and the mounting plate has multiple sets of fixing holes inside.

[0008] Preferably, the adjustment mechanism includes a long bolt and a bearing with a seat, and the top of the pressure plate is connected to the long bolt through the bearing with a seat, and the long bolt passes through the threaded hole inside the frame to form an adjustment structure.

[0009] Preferably, the shock absorption mechanism includes a damping telescopic rod and a spring, and the damping telescopic rod is provided inside the mounting hole, while the spring is provided on the outside of the damping telescopic rod to form a shock absorption structure.

[0010] Preferably, a movable block is provided on the outer side of the protective manhole cover, and a hinge seat matching the movable block is provided on the outer side of the frame. The movable block and the hinge seat are movably connected by a rotating shaft.

[0011] Preferably, the protective manhole cover has a rubber layer on top and a through hole inside the upper part of the protective manhole cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This adjustable anti-settlement manhole cover for highway maintenance has a damping telescopic rod inside the mounting hole and a spring on the outside of the damping telescopic rod. By using the elastic memory of the damping telescopic rod and the elastic action of the spring, the manhole cover can automatically adjust according to changes in the road surface, maintain a tight fit with the road surface, and reduce the occurrence of sinking and lifting. At the same time, its shock absorption effect further reduces the noise generated by vibration of the manhole cover.

[0014] 2. The top of the pressure plate is connected to a long bolt via a bearing seat. By manually rotating the long bolt, the frame can be adjusted up and down to maintain a tight fit with the road surface and reduce abnormal noise and warping. At the same time, multiple adjustment structures are adopted to increase the support points of the protective manhole cover. Combined with the fastening effect of the threaded holes and short bolts, it is more firmly fixed to the road surface.

[0015] 3. The openable protective manhole cover features a hinged seat and a movable block connected by a pivot, facilitating maintenance and repair by maintenance workers and improving the efficiency and safety of highway maintenance. Additionally, a rubber layer made of elastic material is applied to the surface of the protective manhole cover to effectively absorb external impacts, protect the cover structure, and enhance its wear resistance, pressure resistance, and service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0018] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the positioning groove structure of this utility model.

[0020] The following are the labels in the diagram: 1. Base; 2. Positioning block; 3. Frame; 4. Threaded hole; 5. Positioning groove; 6. Pressure plate; 7. Short bolt; 8. Mounting hole; 11. Protective manhole cover; 12. Mounting plate; 13. Fixing hole; 14. Long bolt; 15. Bearing with seat; 16. Damping telescopic rod; 17. Spring; 18. Movable block; 19. Hinge seat; 20. Rotating shaft; 21. Rubber layer; 22. Through hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 This utility model provides a technical solution: an adjustable anti-settlement manhole cover for highway maintenance, including a base 1, a positioning block 2 provided on the inner side of the base 1, and a frame 3 provided on the top of the base 1. The frame 3 has a positioning groove 5 that matches the positioning block 2, which facilitates the installation of the base 1 and the frame 3 and helps to improve work efficiency. The frame 3 has a threaded hole 4 that is connected to the top of the base 1. Multiple pressure plates 6 are provided above the threaded hole 4 at one end of the base 1, and an adjustment mechanism is provided above the pressure plate 6. The other end of the base 1 and the frame 3 are connected to the threaded hole 4 by short bolts 7. Multiple mounting holes 8 are provided on the side of the short bolts 7 at the top of the frame 3. A shock-absorbing mechanism is provided inside the mounting holes 8, and an openable protective manhole cover 11 is provided on the top of the mounting holes 8.

[0023] Reference Figure 3 , Figure 4 The adjustment mechanism includes a long bolt 14 and a bearing 15 with a seat. The top of the pressure plate 6 is connected to the long bolt 14 through the bearing 15 with a seat. The long bolt 14 passes through the threaded hole 4 inside the frame 3 to form an adjustment structure. The setting of the adjustment structure helps the protective manhole cover 11 to keep in close contact with the road surface and reduce the occurrence of abnormal noise and lifting. The shock absorption mechanism includes a damping telescopic rod 16 and a spring 17. The damping telescopic rod 16 is set inside the mounting hole 8, and the spring 17 is set outside the damping telescopic rod 16 to form a shock absorption structure, which can further reduce the noise generated by the vibration of the protective manhole cover 11.

[0024] Reference Figure 1 , Figure 2The base 1 has an installation plate 12 on its outer side, and the installation plate 12 has multiple sets of fixing holes 13 inside, which facilitates the installation and use of the adjustable anti-settlement manhole cover. The protective manhole cover 11 has a movable block 18 on its outer side, and the frame 3 has a hinge seat 19 that matches the movable block 18 on its outer side. The movable block 18 and the hinge seat 19 are movably connected by a rotating shaft 20, which facilitates maintenance and repair by maintenance workers and improves the efficiency and safety of highway maintenance. The top of the protective manhole cover 11 is provided with a rubber layer 21, which is made of elastic material and can effectively absorb external impact force, protect the manhole cover structure, thereby improving the service life of the protective manhole cover 11 and reducing costs. The upper part of the protective manhole cover 11 is provided with a through hole 22, which facilitates the opening and closing of the protective manhole cover 11. At the same time, it helps with drainage when it rains.

[0025] Specifically, in use, the adjustable anti-settlement manhole cover for highway maintenance first fixes the base 1 to the sewer by means of the mounting plate 12 on the outside of the base 1 and multiple sets of fixing holes 13 inside. Then, the positioning block 2 and the positioning groove 5 are aligned, and the frame 3 is placed on top of the base 1. Next, the top of the pressure plate 6 is connected to the long bolt 14 through the bearing 15. By manually rotating the long bolt 14, the frame 3 can be adjusted up and down to keep it in close contact with the road surface. Then, the base 1 and the frame 3 are fixed by means of the short bolt 7 connected to the threaded hole 4.

[0026] Next, the protective manhole cover 11 is closed by the movable block 18 and the hinge seat 19. The damping telescopic rod 16 and spring 17 inside the mounting hole 8 can reduce the noise generated by the vibration of the protective manhole cover 11. Together with the rubber layer 21 on the surface of the protective manhole cover 11, it can effectively absorb external impact and protect the manhole cover structure.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An adjustable anti-settling well cover for road maintenance, comprising a base (1), characterized in that, The inside of base (1) is provided with positioning block (2), and the top of base (1) is provided with frame (3), the inside of frame (3) is provided with positioning groove (5) matched with positioning block (2), and the inside of frame (3) and the top of base (1) are provided with through threaded hole (4), the top of threaded hole (4) on one end of base (1) is provided with multiple sets of pressing plate (6), the top of pressing plate (6) is provided with adjusting mechanism, the other end of base (1) and frame (3) are connected to threaded hole (4) through short bolt (7), and the top of frame (3) is provided with multiple sets of mounting hole (8) on the side of short bolt (7), the inside of mounting hole (8) is provided with damping mechanism, and the top of mounting hole (8) is provided with openable protective well lid (11).

2. The adjustable anti-settling manhole cover for road maintenance according to claim 1, wherein, The outside of base (1) is provided with mounting plate (12), and the inside of mounting plate (12) is provided with multiple sets of fixed hole (13).

3. The adjustable anti-settling manhole cover for road maintenance according to claim 1, wherein, The adjusting mechanism comprises long bolt (14) and bearing (15), the top of pressing plate (6) is connected with long bolt (14) through bearing (15), and long bolt (14) penetrates threaded hole (4) in the inside of frame (3) to form adjusting structure.

4. The adjustable anti-settling manhole cover for road maintenance according to claim 1, wherein, The damping mechanism comprises damping telescopic rod (16) and spring (17), the inside of mounting hole (8) is provided with damping telescopic rod (16), the outside of damping telescopic rod (16) is provided with spring (17) to form damping structure.

5. The adjustable anti-settling manhole cover for road maintenance according to claim 1, wherein, The outside of protective well lid (11) is provided with movable block (18), and the outside of frame (3) is provided with hinged seat (19) matched with movable block (18), the movable block (18) and hinged seat (19) are movably connected through rotating shaft (20).

6. The adjustable anti-settling manhole cover for road maintenance according to claim 1, wherein, The top of protective well lid (11) is provided with rubber layer (21), and the inside of protective well lid (11) is provided with through hole (22) above.