High-strength composite well lid
The high-strength composite manhole cover with an adjustable support plate and drainage features addresses misalignment issues, enhancing safety and functionality.
Patent Information
- Application Number
- CN202421114278.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Existing manhole covers often become misaligned with the ground over time, compromising safety for pedestrians and vehicles.
A high-strength composite manhole cover design featuring adjustable height through a support plate mechanism, water leakage holes, anti-sliding blocks, and reinforcing ribs, along with a filter system to enhance safety and drainage.
The design allows for easy leveling with the ground, improves safety by preventing slips, and ensures effective drainage while maintaining structural integrity.
Smart Images

Figure CN222295076U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of manhole covers, and in particular relates to a high-strength composite manhole cover. Background Art
[0002] Manhole covers are used to cover deep wells in roads or homes to prevent people or objects from falling. They can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. according to the material. They are generally round and can be used in green belts, sidewalks, motor vehicle lanes, docks, and alleys.
[0003] However, when the existing manhole covers are in use, it is inevitable that the manhole covers will not be parallel to the ground during installation or after being used for a long time, which seriously affects the safety of pedestrians and vehicles. Utility Model Content
[0004] In order to solve the problems existing in the prior art, the utility model provides a high-strength composite manhole cover, which adjusts the height of the manhole cover body by changing the height of the support plate, making it easy to place the manhole cover body level with the ground, thereby increasing the safety of pedestrians and vehicles.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength composite manhole cover, comprising a fixed base and a manhole cover body, a plurality of water leakage holes are opened at the top of the manhole cover body, a plurality of anti-sliding blocks are fixedly connected to the top of the manhole cover body, a plurality of fixing holes are opened at the top of the manhole cover body, bolts are movably connected inside the fixing holes, a fixing sleeve is rotatably connected to the surface of the bolt, the surface of the fixing sleeve is fixedly connected to the bottom end of the manhole cover body, a support plate is threadedly connected to the surface of the bolt, a plurality of reinforcing ribs are provided on the surface of the fixed base, a circular ring is movably connected to the bottom end of the manhole cover body, and a filter is fixedly connected to the end of the circular ring away from the manhole cover body.
[0006] Furthermore, a sealing cover is clamped inside the fixing hole.
[0007] Furthermore, the water leakage hole is arranged as an oblique hole.
[0008] Compared with the prior art, the beneficial effects of the utility model are:
[0009] 1. When the height of the manhole cover needs to be adjusted, the bolt can be turned. The bolt rotates inside the fixing sleeve. The support plate is limited by the fixed base and the manhole cover body, so it cannot rotate with the bolt. The rotation of the bolt inside the support plate drives the support plate to move up or down. By changing the height of the support plate, the height of the manhole cover body can be adjusted, which makes it easy to place the manhole cover body level with the ground, thereby increasing the safety of pedestrians and vehicles.
[0010] 2. The leakage hole can play a role in drainage on rainy days. Through the setting of the ring and the filter, it can filter out large impurities in the water. The movable connection of the ring can be disassembled, which is convenient for regular cleaning of debris on the filter. The setting of the sealing cover plays a sealing role for the fixing hole to prevent rainwater from intruding and causing the bolts to rust. The setting of the reinforcing ribs increases the strength of the fixed base. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0012] Figure 2 It is a sectional view of the overall structure of the utility model.
[0013] Figure 3 It is a schematic diagram of the manhole cover structure of the utility model.
[0014] In the figure: 1. fixed base; 2. manhole cover body; 3. fixing hole; 4. fixing sleeve; 5. bolt; 6. support plate; 7. sealing cover; 8. leakage hole; 9. ring; 10. filter screen; 11. anti-sliding block; 12. reinforcing rib. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example
[0017] See attached Figure 1-3As shown, a high-strength composite manhole cover includes a fixed base 1 and a manhole cover body 2. A plurality of water leakage holes 8 are opened at the top of the manhole cover body 2. A plurality of anti-sliding blocks 11 are fixedly connected to the top of the manhole cover body 2. A plurality of fixing holes 3 are opened at the top of the manhole cover body 2. Bolts 5 are movably connected inside the fixing holes 3. A fixing sleeve 4 is rotatably connected to the surface of the bolt 5. The surface of the fixing sleeve 4 is fixedly connected to the bottom end of the manhole cover body 2. A support plate 6 is threadedly connected to the surface of the bolt 5. A plurality of reinforcing ribs 12 are provided on the surface of the fixed base 1. A circular ring 9 is movably connected to the bottom end of the manhole cover body 2. A filter screen 10 is fixedly connected to the end of the circular ring 9 away from the manhole cover body 2.
[0018] A sealing cover 7 is clamped inside the fixing hole 3 .
[0019] The water leakage hole 8 is arranged as an inclined hole, and the arrangement of the inclined hole facilitates the drainage of rainwater during drainage.
[0020] Working principle: When in use, first bury and fix the fixed base 1, and place the manhole cover 2 inside the fixed base 1. At this time, the support plate 6 will contact the inside of the fixed base 1 to play a supporting role. When the height of the manhole cover 2 needs to be adjusted, the bolt 5 can be rotated. The bolt 5 rotates inside the fixed sleeve 4. The support plate 6 is limited by the fixed base 1 and the manhole cover body 2, so it cannot rotate with the bolt 5. The rotation of the bolt 5 inside the support plate 6 drives the support plate 6 to move up or down. By changing the height of the support plate 6, the height of the manhole cover body 2 can be adjusted. It is convenient to place the manhole cover body 2 level with the ground to increase the safety of pedestrians and vehicles. The anti-slip block 11 is provided to prevent the top of the manhole cover body 2 from slipping. The water leakage hole 8 can drain water on rainy days. The ring 9 and the filter screen 10 are provided to filter large impurities in the water. The ring 9 is movably connected and can be disassembled, which is convenient for regular cleaning of debris on the filter screen 10. The sealing cover 7 is provided to seal the fixing hole 3 to prevent rainwater from intruding and causing the bolt 5 to rust. The reinforcing rib 12 is provided to increase the strength of the fixed base 1.
[0021] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.
[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A high-strength composite manhole cover, comprising a fixed base (1) and a manhole cover body (2), wherein a plurality of water leakage holes (8) are provided at the top of the manhole cover body (2), and a plurality of anti-sliding blocks (11) are fixedly connected to the top of the manhole cover body (2), characterized in that: The top of the manhole cover body (2) is provided with a plurality of fixing holes (3), the fixing holes (3) are movably connected with bolts (5), the surfaces of the bolts (5) are rotatably connected with fixing sleeves (4), the surfaces of the fixing sleeves (4) are fixedly connected with the bottom of the manhole cover body (2), the surfaces of the bolts (5) are threadedly connected with support plates (6), the surface of the fixing base (1) is provided with a plurality of reinforcing ribs (12), the bottom of the manhole cover body (2) is movably connected with a circular ring (9), and the end of the circular ring (9) away from the manhole cover body (2) is fixedly connected with a filter screen (10).
2. According to claim 1, a high-strength composite manhole cover is characterized in that: A sealing cover (7) is clamped inside the fixing hole (3).
3. According to claim 1, a high-strength composite manhole cover is characterized in that: The water leakage hole (8) is arranged as an oblique hole.
