Municipal road drainage well lid
By designing a support frame and spring structure for municipal road drainage manhole covers, the instability of manhole covers during heavy rain was solved, achieving stable support for the manhole covers, preventing tilting or closing, and improving their stability in use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-04-14
AI Technical Summary
Manhole covers on municipal roads are prone to tilting or closing due to rainwater washing after being lifted during heavy rain, leading to instability.
A municipal road drainage manhole cover was designed, comprising a mounting base, a manhole cover body, a support frame, a fixing plate, a support plate, a clamping plate, a spring, and a limiting plate. The manhole cover is stably supported by the angular deflection of the support plate and the elastic force of the spring, preventing arbitrary deflection.
After the manhole cover is opened, the support plate and spring work together to provide stable support for the manhole cover, preventing it from tilting or closing, thus improving the stability of the manhole cover in use.
Smart Images

Figure CN224119597U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manhole cover technology, specifically a municipal road drainage manhole cover. Background Technology
[0002] Manhole covers are used to cover deep wells in roads or homes to prevent people or objects from falling in. [1] They can be classified by material into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. They are generally round. They can be used in green belts, sidewalks, motor vehicle lanes, docks, alleys, etc.
[0003] In cities, during heavy rain, municipal roads are prone to flooding, sometimes even submerging the road surface. To drain the rainwater as quickly as possible, people often lift the manhole covers to expedite the drainage. However, after the manhole covers are lifted and flipped, they are often placed at an angle. When the manhole covers are washed by rainwater, they are prone to closing up. Utility Model Content
[0004] The purpose of this utility model is to provide a municipal road drainage well cover to solve the problems existing in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a municipal road drainage manhole cover, comprising a mounting base, a manhole cover body hinged to its top, and a support frame fixed to one side of the manhole cover body, and further comprising:
[0006] A fixing plate is fixedly connected to the front and rear sides of the inner side of the mounting base. A support plate is hinged to the other end of the fixing plate. Limiting grooves are opened on both sides of one end of the support plate. A clamping plate is fixedly connected to the other end of the support plate, and the inner side of the clamping plate is clamped to the surface of the support frame.
[0007] Springs are fixed on both sides inside the fixed plate. One end of the spring is fixed with a movable plate, and the other end of the movable plate is fixed with a limit plate. The other end of the limit plate is used in conjunction with the inside of the limit groove. A slide plate is fixed to the bottom of the limit plate, and the surface of the slide plate is movably connected to the inside of the fixed plate. A pull plate is fixed to the bottom of the slide plate.
[0008] Preferably, a fastening bolt is rotatably connected inside one side of the card plate, and the other end of the fastening bolt is in contact with the outer surface of the support frame.
[0009] Preferably, movable rods are fixed on both sides inside the fixed plate, and the spring is sleeved on the surface of the movable rod, and the interior of the movable plate is movably connected to the surface of the movable rod.
[0010] Preferably, the manhole cover body has raised holes on both sides of its top.
[0011] Preferably, the top of the manhole cover body is fixed with a number of anti-slip protrusions, and the anti-slip protrusions are arranged at equal intervals.
[0012] Preferably, the pull plate has a groove inside.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] After the manhole cover body is lifted, the support plate can be tilted at an angle as one end of the support plate is hinged to the fixed plate, so that the locking plate is locked onto the surface of the support frame, thereby providing oblique support for the manhole cover body and preventing the manhole cover body from tilting at will. At the same time, during the support process, as the spring applies elastic force to the movable plate, it can drive the limiting plate into the interior of the limiting groove, thereby limiting and fixing the support plate, and thus improving the stability of the manhole cover body when supporting it. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a bottom-view structural diagram of the present invention;
[0017] Figure 3 This is a schematic diagram of the structure of this utility model;
[0018] Figure 4 This is a partial structural diagram of the present invention;
[0019] Figure 5 This is a partial cross-sectional structural diagram of the present invention;
[0020] Figure 6 This utility model Figure 4 A magnified view of a section at point A in the middle;
[0021] Figure 7 This utility model Figure 5 A magnified view of a section at point B.
[0022] In the diagram: 1. Mounting base; 2. Manhole cover body; 3. Support frame; 4. Fixing plate; 5. Support plate; 6. Clamping plate; 7. Limiting groove; 8. Movable rod; 9. Movable plate; 10. Spring; 11. Limiting plate; 12. Slide plate; 13. Pull plate; 14. Fastening bolt; 15. Anti-slip protrusion; 16. Warp hole; 17. Groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-7 As shown, a municipal road drainage manhole cover includes a mounting base 1. A manhole cover body 2 is hinged to the top of the mounting base 1. A support frame 3 is fixedly connected to the bottom of the manhole cover body 2. Fixing plates 4 are fixedly connected to the front and rear sides of the right inner side of the mounting base 1. A support plate 5 is hinged to the other end of the fixing plate 4. Limiting grooves 7 are formed on both sides of one end of the support plate 5. A locking plate 6 is fixedly connected to the other end of the support plate 5, and the inner side of the locking plate 6 is engaged with the surface of the support frame 3. Springs 10 are fixed to both sides inside the fixing plate 4. A movable plate 9 is fixed to one end of the spring 10, and a limiting plate 11 is fixed to the other end of the movable plate 9. The other end is used in conjunction with the inside of the limiting groove 7. Movable rods 8 are fixed on both sides inside the fixed plate 4. Spring 10 is sleeved on the surface of the movable rod 8. The inside of the movable plate 9 is movably connected to the surface of the movable rod 8, so as to provide auxiliary support for the movable plate 9 and maintain the stability of the movable plate 9 when it moves. The limiting plate 11 and the movable plate 9 are both movably connected to the inside of the fixed plate 4. The bottom of the limiting plate 11 is fixed with a sliding plate 12, and the surface of the sliding plate 12 is movably connected to the inside of the fixed plate 4. The bottom of the sliding plate 12 is fixed with a pull plate 13. The inside of the pull plate 13 has a groove 17, so as to facilitate the application of force to push the pull plate 13.
[0025] A fastening bolt 14 is rotatably connected inside one side of the clamping plate 6. The other end of the fastening bolt 14 is in contact with the outer surface of the support frame 3. Thus, after the clamping plate 6 is clamped onto the surface of the support frame 3, the fastening bolt 14 can be rotated to fix the clamping plate 6.
[0026] The manhole cover body 2 has pry holes 16 on both sides of the top, which makes it easy to insert a pry bar into the pry holes 16 and thus make it easy to pry up the manhole cover body 2.
[0027] The top of the manhole cover body 2 is fixed with several anti-slip protrusions 15, and the anti-slip protrusions 15 are arranged at equal intervals. This can increase the friction of the surface of the manhole cover body 2 and prevent slipping.
[0028] It is worth noting that the technical features proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in the field. This technical solution will not elaborate further.
[0029] Working principle: In use, an external pry bar can be inserted into the pry hole 16 to lift the manhole cover body 2. Then, the manhole cover body 2 is lifted and flipped. After flipping to a certain angle, the pull plate 13 can be pulled to the right, which will drive the slide plate 12, the limiting plate 11 and the movable plate 9 to move. This causes the movable plate 9 to squeeze the spring 10, while the limiting plate 11 is disengaged from the limiting groove 7. Subsequently, the support plate 5 can be flipped, and the locking plate 6 is locked onto the surface of the support frame 3. After the support plate 5 is flipped to a certain angle, the elastic force of the spring 10 can drive the slide plate 12, the movable plate 9 and the limiting plate 11 back to the starting position, so that the limiting plate 11 is re-inserted into the limiting groove 7 for limiting. Then, the fastening bolt 14 is rotated to limit and fix the locking plate 6. In this way, after the manhole cover body 2 is lifted and flipped, it can provide stable support for the manhole cover body 2 and prevent it from being deflected at will.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A municipal road drainage manhole cover, comprising a mounting base (1), a manhole cover body (2) hinged to its top, and a support frame (3) fixed to one side of the manhole cover body (2), characterized in that, Also includes: A fixing plate (4) is fixedly connected to the front and rear sides of the inner side of the mounting base (1). A support plate (5) is hinged to the other end of the fixing plate (4). Limiting grooves (7) are opened on both sides of one end of the support plate (5). A clamping plate (6) is fixedly connected to the other end of the support plate (5), and the inner side of the clamping plate (6) is clamped to the surface of the support frame (3). Springs (10) are fixed on both sides inside the fixed plate (4). One end of the spring (10) is fixed with a movable plate (9). The other end of the movable plate (9) is fixed with a limiting plate (11). The other end of the limiting plate (11) is used in conjunction with the inside of the limiting groove (7). A sliding plate (12) is fixed at the bottom of the limiting plate (11). The surface of the sliding plate (12) is movably connected to the inside of the fixed plate (4). A pull plate (13) is fixed at the bottom of the sliding plate (12).
2. A municipal road drainage well cover according to claim 1, characterized in that: The card plate (6) is internally rotatably connected to a fastening bolt (14) on one side, and the other end of the fastening bolt (14) is in contact with the outer surface of the support frame (3).
3. A municipal road drainage well cover according to claim 1, characterized in that: Movable rods (8) are fixed on both sides inside the fixed plate (4), and the spring (10) is sleeved on the surface of the movable rod (8). The interior of the movable plate (9) is movably connected to the surface of the movable rod (8).
4. A municipal road drainage well cover according to claim 1, characterized in that: The manhole cover body (2) has two openings (16) on both sides of the top.
5. A municipal road drainage well cover according to claim 1, characterized in that: The top of the manhole cover body (2) is fixed with several anti-slip protrusions (15), and the anti-slip protrusions (15) are arranged at equal intervals.
6. A municipal road drainage well cover according to claim 1, characterized in that: The pull plate (13) has a groove (17) inside.