Reinforced resin composite material well lid
By designing auxiliary drainage structures and reinforcement mechanisms in reinforced resin composite manhole covers, the problem of water accumulation and blockage in extreme weather is solved, the drainage efficiency and load-bearing capacity are improved, the service life is extended and maintenance costs are reduced.
Patent Information
- Application Number
- CN202422266451.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The existing reinforced resin composite manhole covers are easily blocked under extreme weather conditions, resulting in rapid accumulation of water around the manhole covers, affecting normal drainage.
A reinforced resin composite manhole cover is designed, adopting an auxiliary drainage structure, including a lid cover groove, a lid cover, a guide rod, a crossbar column and a steel bar, assisting the automatic opening and debris cleaning functions of the auxiliary drainage hole, and a reinforcement mechanism to strengthen the structural strength of the manhole cover through reinforcement.
It effectively solves the problem that manhole covers are prone to water accumulation and blockage in extreme weather, improves drainage efficiency, load-bearing capacity and service life of manhole covers, ensures long-term smoothness of drainage holes, and reduces maintenance costs.
Smart Images

Figure CN223017684U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of manhole covers, in particular to a reinforced resin composite manhole cover. Background Art
[0002] Resin composite materials, as an advanced material, with their unique lightness, excellent firmness and outstanding wear resistance, have shone in many fields, including but not limited to construction, transportation, aerospace and new energy and other fields. In construction and municipal facilities, the emergence of reinforced resin composite manhole covers is an innovation to traditional manhole cover materials. It not only significantly improves the load-bearing capacity and service life of manhole covers, but also becomes an important symbol of the modernization of urban infrastructure due to its good corrosion resistance and low maintenance cost.
[0003] In the current design of reinforced resin composite manhole covers, although the durability and functionality of the materials have been fully considered, in extreme weather conditions, especially when encountering continuous heavy rain, rainwater quickly accumulates on the ground. If the water leakage holes of the manhole cover are blocked by sundries such as leaves, plastic bags, sediment, etc., the originally smooth drainage of water will be blocked, resulting in the rapid formation of water accumulation around the manhole cover. This accumulated water will not only bring inconvenience to the passage of pedestrians and vehicles, increasing the risk of traffic accidents, but also may cause damage to surrounding buildings and infrastructure, such as foundation soaking, wall seepage, etc. In addition, long-term accumulated water may become a breeding ground for mosquitoes, posing a threat to public health. Therefore, we propose a new type of reinforced resin composite manhole cover. Content of the Utility Model
[0004] (I) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides a reinforced resin composite manhole cover, which solves the problem that the manhole cover is easily blocked in extreme weather, resulting in the rapid formation of water accumulation around the manhole cover and affecting the normal drainage of the manhole cover.
[0006] (II) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solutions: A reinforced resin composite manhole cover, including a manhole cover body, a non-slip mechanism is arranged on the top of the manhole cover body, a main drainage mechanism is arranged on the outer ring of the manhole cover body, an auxiliary drainage structure is arranged on the inner ring of the manhole cover body, and a reinforcement mechanism is arranged inside the manhole cover body;
[0008] The auxiliary drainage structure includes a movable cover groove, inside which there is a movable cover. A guide rod is fixedly installed at the bottom of the movable cover. A cross knife post is fixedly installed on one side of the bottom of the movable cover near the guide rod. A steel thorn is fixedly installed at the lower end of the cross knife post. Auxiliary drainage holes are formed inside the movable cover groove, and the steel thorn is located directly above the auxiliary drainage holes.
[0009] Preferably, the number of the cross knife posts is several, and the cross knife posts are evenly distributed in a circular shape at the bottom of the movable cover.
[0010] Preferably, the movable cover is made of a soft hollow board.
[0011] Preferably, the number of the auxiliary drainage holes is several, and the auxiliary drainage holes are evenly distributed in a circular shape inside the movable cover groove.
[0012] Preferably, the cross knife posts and the steel thorns are made of stainless steel.
[0013] Preferably, an anti - detachment block is fixedly installed at the lower end of the guide rod, and the whole guide rod is in a cuboid shape.
[0014] Preferably, the anti - slip mechanism includes anti - slip blocks fixedly installed at the top of the manhole cover body, and the anti - slip blocks are evenly distributed in a circular shape at the top of the manhole cover body.
[0015] Preferably, the main drainage mechanism includes main drainage holes formed in the outer ring of the manhole cover body, and the main drainage holes are evenly distributed in a circular shape at the outer ring of the manhole cover body.
[0016] Preferably, the reinforcement mechanism includes reinforcing ribs fixedly installed inside the manhole cover body, and the reinforcing ribs are made of steel bars.
[0017] (III) Beneficial effects
[0018] Compared with the prior art, the present utility model provides one, having the following beneficial effects:
[0019] 1. By arranging an auxiliary drainage structure inside the manhole cover body, the present utility model effectively solves the problems that traditional manhole covers are prone to water accumulation and blockage in extreme weather. When the main drainage mechanism cannot drain water due to blockage, the auxiliary drainage structure is automatically activated, floats upward through the buoyancy of the movable cover, opens the auxiliary drainage holes, and quickly discharges the accumulated water. This design not only improves the drainage efficiency, but also clears the sundries that may block the drainage holes through the cutting action of the cross knife posts and the steel thorns, ensuring the long - term smoothness of the drainage holes. At the same time, the arrangement of the guide rod and the anti - detachment block ensures the stability and reliability of the movable cover during the rising and falling processes, further enhancing the drainage capacity and safety of the manhole cover;
[0020] 2. The utility model significantly improves the load-bearing capacity and anti-deformation ability of the manhole cover by setting a reinforcement mechanism inside the manhole cover body. The reinforcing ribs made of steel bars not only enhance the overall structural strength of the manhole cover but also effectively disperse stress when subjected to external impacts, protecting the manhole cover from damage. This design improves the durability and stability of the manhole cover, extends its service life, reduces maintenance costs, and provides strong support for the sustainable development of urban infrastructure. Brief Description of the Drawings
[0021] Figure 1 is a schematic structural diagram of the utility model;
[0022] Figure 2 is a schematic structural diagram of the movable cover of the utility model;
[0023] Figure 3 is a schematic structural diagram of the reinforcing rib of the utility model;
[0024] Figure 4 is a schematic structural diagram of the anti-detachment block of the utility model;
[0025] Figure 5 is a schematic structural diagram of the auxiliary drainage hole of the utility model;
[0026] Figure 6 is a schematic structural diagram of the steel spikes of the utility model.
[0027] In the drawings:
[0028] 1. Manhole cover body;
[0029] 2. Anti-slip mechanism; 21. Anti-slip block;
[0030] 3. Main drainage mechanism; 31. Main drainage hole;
[0031] 4. Auxiliary drainage structure; 41. Movable cover groove; 42. Movable cover; 43. Guide rod; 44. Cross knife post; 45. Steel spikes; 46. Auxiliary drainage hole; 47. Anti-detachment block;
[0032] 5. Reinforcement mechanism; 51. Reinforcing rib. Detailed Embodiment
[0033] In the present utility model, unless otherwise stated, the directions such as "up, down" are usually in the directions shown in the drawings or in the vertical, perpendicular or gravitational directions; similarly, for ease of understanding and description, "left, right" are usually left and right as shown in the drawings; "inside, outside" refer to inside and outside the contours of each component itself, but the above directional terms do not limit the present utility model.
[0034] Please refer to Figures 1 to 6, the present utility model provides a technical solution:
[0035] Embodiment 1
[0036] As Figures 1 to 6 , the present utility model provides a reinforced resin composite manhole cover, including a manhole cover body 1, a non-slip mechanism 2 is arranged on the top of the manhole cover body 1, a main drainage mechanism 3 is arranged on the outer ring of the manhole cover body 1, an auxiliary drainage structure 4 is arranged on the inner ring of the manhole cover body 1, a reinforcement mechanism 5 is arranged inside the manhole cover body 1, the auxiliary drainage structure 4 includes a movable cover groove 41, a movable cover 42 is arranged inside the movable cover groove 41, a guide rod 43 is fixedly installed at the bottom of the movable cover 42, a cross knife post 44 is fixedly installed on one side of the bottom of the movable cover 42 close to the guide rod 43, a steel thorn 45 is fixedly installed at the lower end of the cross knife post 44, auxiliary drainage holes 46 are arranged inside the movable cover groove 41, the steel thorn 45 is located directly above the auxiliary drainage holes 46, the number of cross knife posts 44 is several, the cross knife posts 44 are evenly distributed in a circumferential shape at the bottom of the movable cover 42, the movable cover 42 is made of a soft and hollow board, the number of auxiliary drainage holes 46 is several, the auxiliary drainage holes 46 are evenly distributed in a circumferential shape inside the movable cover groove 41, the cross knife posts 44 and the steel thorns 45 are made of stainless steel materials, a anti-detachment block 47 is fixedly installed at the lower end of the guide rod 43, and the whole guide rod 43 is in a cuboid shape.
[0037] In this embodiment, through the auxiliary drainage structure 4, the emergency drainage mechanism is activated. The movable cover 42 is made of a soft and hollow board material, which not only ensures sufficient buoyancy response but also has a certain toughness to resist water flow impact. As the water level rises, the movable cover 42 automatically floats under the action of buoyancy. At the same time, the guide rod 43 ensures that its floating process is stable and along a preset trajectory, avoiding the out-of-control of the movable cover 42 caused by water flow disorder. The design of the cross knife posts 44 and the steel thorns 45 cleverly utilizes the gap of water flow drainage to physically cut and clean the possible remaining blockages, ensuring the long-term smoothness of the auxiliary drainage holes 46. In addition, the setting of the anti-detachment block 47 effectively prevents the guide rod 43 from detaching from the manhole cover body 1 in extreme cases, enhancing the reliability of the overall structure.
[0038] Embodiment 2
[0039] As Figures 1 to 6 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the non-slip mechanism 2 includes anti-slip blocks 21 fixedly installed on the top of the manhole cover body 1, and the anti-slip blocks 21 are evenly distributed in a circumferential shape on the top of the manhole cover body 1.
[0040] In this embodiment, the addition of the anti-slip mechanism 2 significantly improves the safety of the manhole cover. The anti-slip blocks 21 are evenly distributed on the top of the manhole cover body 1, which not only increases the friction when pedestrians and vehicles step on it, preventing slip accidents caused by wetness, but also further enhances the anti-slip effect through its special design (such as raised textures or anti-slip strips). This design is particularly important in rainy or wet environments, effectively ensuring the safe passage of pedestrians and vehicles.
[0041] Embodiment III
[0042] As Figures 1 to 6 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the main drainage mechanism 3 includes main drainage holes 31 opened on the outer ring of the manhole cover body 1, and the main drainage holes 31 are evenly distributed in a circular shape on the outer ring of the manhole cover body 1.
[0043] In this embodiment, by using the main drainage mechanism 3 as the basic drainage functional unit of the manhole cover, its design embodies the principles of high efficiency and practicality. The main drainage holes 31 are evenly distributed in a circular shape, maximizing the drainage area, enabling water flow to quickly and evenly enter the underground drainage system through the manhole cover. Even under normal weather conditions, this design can effectively reduce the phenomenon of water accumulation, improve the drainage efficiency. At the same time, the uniform layout of the main drainage holes 31 also helps to disperse the water flow impact force, reducing the risk of damage caused by excessive single-point drainage pressure.
[0044] Embodiment IV
[0045] As Figures 1 to 6 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the reinforcement mechanism 5 includes reinforcing ribs 51 fixedly installed inside the manhole cover body 1, and the reinforcing ribs 51 are made of steel bars.
[0046] In this embodiment, the reinforcement mechanism 5 is the key to ensuring the long-term stable operation of the manhole cover. By installing reinforcing ribs 51 made of steel bars inside the manhole cover body 1, the load-bearing capacity and anti-deformation ability of the manhole cover are significantly improved. These reinforcing ribs 51 not only enhance the overall structural strength of the manhole cover, but also can effectively disperse stress when subjected to external impacts, protecting the manhole cover from damage. In addition, the use of reinforcing ribs 51 also extends the service life of the manhole cover and reduces the maintenance cost, providing strong support for the sustainable development of urban infrastructure.
[0047] During specific use, as a reinforced resin composite manhole cover, when rainwater or debris enters the inside of the manhole cover through the surface of the manhole cover, it will first attempt to drain water through the main drainage holes 31 in the main drainage mechanism 3 on the outer ring of the manhole cover body 1. These main drainage holes 31 are evenly distributed in a circular shape and can efficiently guide the water flow into the underground drainage system. However, under extreme weather conditions, especially when debris such as leaves, plastic bags, and sediment blocks the main drainage holes 31, the accumulated water will gradually pile up on the manhole cover body 1;
[0048] As the water level continues to rise, the auxiliary drainage structure 4 located in the inner ring of the manhole cover body 1 starts to play a role. Specifically, the movable cover 42 made of a soft hollow plate begins to float upward under the action of buoyancy after the water level rises to a certain height. During this process, the guide rod 43 at the bottom of the movable cover 42 ensures that the movable cover 42 rises smoothly along a predetermined trajectory, preventing disorderly movement caused by water flow impact;
[0049] As the movable cover 42 rises, the originally blocked auxiliary drainage holes 46 are opened. These drainage holes evenly distributed inside the movable cover groove 41 quickly drain the accumulated water on the manhole cover body 1, effectively alleviating the problem of accumulated water and ensuring the passage safety of pedestrians and vehicles;
[0050] When the drainage of the accumulated water is completed and the water level drops, the movable cover 42 loses the action of buoyancy and begins to slowly move downward and reset under the guidance of the guide rod 43. It should be noted that during the downward movement of the movable cover 42, the cross knife posts 44 and steel spines 45 installed at its bottom will move accordingly. These sharp components made of stainless steel materials can pierce and cut the blockages such as leaves and plastic bags that may remain around the auxiliary drainage holes 46, thus ensuring that the auxiliary drainage holes 46 can remain unobstructed during the next use;
[0051] In addition, in order to further enhance the load-bearing capacity and stability of the manhole cover, a reinforcement mechanism 5 is also provided inside the manhole cover body 1, which is mainly composed of reinforcing ribs 51 made of steel bars. These reinforcing ribs 51 effectively improve the overall structural strength of the manhole cover, enabling it to withstand the impact of external forces such as vehicles and pedestrians, and extending the service life of the manhole cover;
[0052] In summary, through the ingeniously designed auxiliary drainage structure 4 and reinforcement mechanism 5, this reinforced resin composite manhole cover not only solves the problems of easy water accumulation and blockage of traditional manhole covers under extreme weather conditions, but also significantly improves the load-bearing capacity and service life of the manhole cover, providing a strong guarantee for the modernization and safety of urban infrastructure.
[0053] The above are only specific embodiments of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present utility model to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present utility model.
Claims
1. A reinforced resin composite manhole cover, comprising a manhole cover body (1), characterized in that: The top of the manhole cover body (1) is provided with an anti-slip mechanism (2), the outer ring of the manhole cover body (1) is provided with a main drainage mechanism (3), the inner ring of the manhole cover body (1) is provided with an auxiliary drainage structure (4), and the interior of the manhole cover body (1) is provided with a reinforcement mechanism (5); The auxiliary drainage structure (4) comprises a movable cover groove (41), a movable cover (42) is arranged inside the movable cover groove (41), a guide rod (43) is fixedly installed at the bottom of the movable cover (42), a cross knife column (44) is fixedly installed on the side of the bottom of the movable cover (42) close to the guide rod (43), a steel spike (45) is fixedly installed at the lower end of the cross knife column (44), an auxiliary drainage hole (46) is opened inside the movable cover groove (41), and the steel spike (45) is located directly above the auxiliary drainage hole (46).
2. The reinforced resin composite manhole cover according to claim 1, characterized in that: The number of the cross blade columns (44) is several, and the cross blade columns (44) are evenly distributed in a circular shape at the bottom of the movable cover (42).
3. The reinforced resin composite manhole cover according to claim 1, characterized in that: The movable cover (42) is made of a soft hollow plate.
4. The reinforced resin composite manhole cover according to claim 1, characterized in that: The number of the auxiliary drainage holes (46) is several, and the auxiliary drainage holes (46) are evenly distributed in a circular shape inside the movable cover groove (41).
5. The reinforced resin composite manhole cover according to claim 1, characterized in that: The cross blade column (44) and the steel thorn (45) are made of stainless steel.
6. The reinforced resin composite manhole cover according to claim 1, characterized in that: An anti-drop block (47) is fixedly mounted on the lower end of the guide rod (43), and the guide rod (43) is in the shape of a rectangular parallelepiped as a whole.
7. The reinforced resin composite manhole cover according to claim 1, characterized in that: The anti-slip mechanism (2) comprises an anti-slip block (21) fixedly mounted on the top of the manhole cover body (1); the anti-slip block (21) is evenly distributed in a circular shape on the top of the manhole cover body (1).
8. The reinforced resin composite manhole cover according to claim 1, characterized in that: The main drainage mechanism (3) comprises main drainage holes (31) formed on the outer circle of the manhole cover body (1); the main drainage holes (31) are evenly distributed in a circular shape on the outer circle of the manhole cover body (1).
9. The reinforced resin composite manhole cover according to claim 1, characterized in that: The reinforcement mechanism (5) comprises a reinforcement rib (51) fixedly mounted inside the manhole cover body (1), and the reinforcement rib (51) is made of steel bars.