Well lid capable of reducing accumulated water on road
By using a rotating manhole cover and inner cover structure design, the problems of slow drainage speed and safety of manhole covers are solved, achieving the effects of rapid drainage and safety warning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional manhole covers have a slow drainage speed during heavy rain, which can easily lead to road flooding and the manhole opening can be submerged, posing a safety hazard of pedestrians falling into the manhole.
Design a manhole cover that can rotate 90 degrees, combined with an inner cover with a groove and a support structure, to increase the drainage area and keep the manhole cover upright. It can be used as a warning sign to prevent the manhole from being blocked and to improve safety.
By increasing the drainage area and keeping manhole covers upright, road water accumulation can be reduced, drainage efficiency can be improved, and safety can be enhanced through the warning function of manhole covers.
Smart Images

Figure CN224078355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a manhole cover, specifically a manhole cover that reduces road water accumulation, and belongs to the field of manhole cover technology. Background Technology
[0002] Manhole covers are facilities used to cover various well openings in roads or courtyards. They are usually made of materials such as cast iron, steel, composite materials, and concrete. Manhole covers can be divided into power manhole covers, telecommunication manhole covers, and municipal manhole covers according to their uses. Municipal manhole covers are mainly used to cover the well openings of municipal pipelines such as drainage, water supply, power supply, communication, and gas under urban roads. They usually have clear markings, such as "drainage" or "water supply," to facilitate identification and management.
[0003] However, traditional manhole covers typically have small drainage holes, which cannot quickly allow large amounts of rainwater to flow into the storm drain during heavy rainfall, easily causing water accumulation on the road. When the drainage speed is limited, the manhole cover is usually opened to improve drainage efficiency. After the manhole cover is opened, the manhole opening is exposed. When the rainfall is extremely heavy and the depth of the water accumulation on the road exceeds the height of the manhole opening, the manhole opening will be submerged by the accumulated water. The manhole opening cannot be directly seen from the road surface, and pedestrians may fall into the manhole due to negligence. Utility Model Content
[0004] The purpose of this utility model is to provide a manhole cover that reduces road water accumulation in order to solve the above-mentioned problems. By rotating the manhole cover upward by 90 degrees and using an inner cover with a groove inside the manhole ring to effectively intercept debris and prevent the manhole from being blocked, the drainage speed of the manhole is increased, which helps to reduce road water accumulation. At the same time, the supporting structure supports the manhole cover to keep it in an upright position, so that the manhole cover can also serve as a warning sign, making it easy for pedestrians to see, thereby improving the safety during drainage.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: a manhole cover for reducing road water accumulation, comprising a manhole ring, a manhole cover body rotatably connected to the manhole ring, a support structure installed on the manhole cover body, the support structure including a rotating rod, a rotating rod rotatably connected to the manhole ring, two sliding sleeves rotatably connected to the end of the rotating rod, two connecting rods fixedly connected to the inner wall of the manhole cover body, the two sliding sleeves being slidably connected to the two connecting rods respectively, a locking block being slidably connected to the sliding sleeve, a locking groove being opened on one of the connecting rods, the locking block engaging with the locking groove, a filter structure installed on the manhole ring, the filter structure including an inner cover, and an inner cover installed inside the manhole ring.
[0006] Preferably, the cross-section of the sliding sleeve is T-shaped, and the end of the locking block is beveled.
[0007] Preferably, a guide rod is fixedly connected to the sliding sleeve, and the locking block is slidably connected to the guide rod.
[0008] Preferably, a spring is sleeved on the outside of the guide rod, one end of the spring is fixedly connected to the sliding sleeve, and the other end of the spring is fixedly connected to the locking block.
[0009] Preferably, the sliding sleeve has a sliding groove, and a push rod is slidably connected in the sliding groove, and the push rod is fixedly connected to the locking block.
[0010] Preferably, the cross-section of the well ring is stepped, and the cross-section of the inner cover is U-shaped.
[0011] Preferably, multiple positioning posts are fixedly connected inside the well ring, and multiple positioning holes are opened on the edge of the inner cover, with the positioning posts engaging with the positioning holes.
[0012] Preferably, the top of the positioning post has a trapezoidal structure, and the inner cover has multiple slots.
[0013] Preferably, the manhole cover body has multiple drainage holes, and reinforcing ribs are fixedly connected to the inner wall of the manhole cover body.
[0014] The beneficial effects of this utility model are as follows: by rotating the manhole cover upwards by 90 degrees, and with the inner cover with a groove inside the manhole ring, debris is effectively intercepted to prevent blockage of the manhole opening, thereby increasing the drainage area and improving the drainage speed of the manhole opening, which helps to reduce road water accumulation; the support structure can stably support the manhole cover after it is opened, so that it always remains upright. On the one hand, it can prevent the manhole cover from being washed away by rainwater and shaking, colliding with the manhole ring or other objects, reducing the wear and tear on the manhole cover. On the other hand, the manhole cover can serve as a warning sign, making it easier for pedestrians to notice the condition of the manhole opening in time, greatly improving the safety of drainage operations. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the connection structure between the well ring and the well cover of this utility model;
[0017] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A.
[0018] Figure 4 This is a schematic diagram of the connection structure between the rotating rod and the sliding sleeve of this utility model;
[0019] Figure 5 This is a schematic diagram of the connection structure between the connecting rod and the sliding sleeve of this utility model;
[0020] Figure 6 for Figure 5 The diagram shows an enlarged view of section B.
[0021] In the diagram: 1. Manhole ring; 2. Manhole cover body; 3. Support structure; 301. Rotating rod; 302. Connecting rod; 303. Sliding sleeve; 304. Locking block; 305. Locking groove; 306. Guide rod; 307. Spring; 308. Sliding groove; 309. Push rod; 4. Filter structure; 401. Inner cover; 402. Positioning post; 403. Positioning hole; 404. Groove; 5. Drainage hole; 6. Reinforcing rib. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-6 As shown, a manhole cover for reducing road water accumulation includes a manhole ring 1, a manhole cover body 2 rotatably connected to the manhole ring 1, a support structure 3 mounted on the manhole cover body 2, and a rotating rod 301 rotatably connected to the manhole ring 1. Two sliding sleeves 303 are rotatably connected to the end of the rotating rod 301. Two connecting rods 302 are fixedly connected to the inner wall of the manhole cover body 2. The two sliding sleeves 303 are slidably connected to the two connecting rods 302 respectively. A locking block 304 is slidably connected to the sliding sleeve 303. A slot 305 is provided on one of the connecting rods 302, and the locking block 304 engages with the slot 305. The cross-section of the sliding sleeve 303 is T-shaped, and the end of the locking block 304 is beveled. A spring 307 is sleeved on the outside of the guide rod 306. One end of the spring 307 is fixedly connected to the sliding sleeve 303, and the other end of the spring 307 is fixedly connected to the locking block 304. A filter structure 4 is installed on the well ring 1. The filter structure 4 includes an inner cover 401, and the inner cover 401 is installed inside the well ring 1.
[0024] As a technical optimization of this utility model, a guide rod 306 is fixedly connected to the sliding sleeve 303, and the locking block 304 is slidably connected to the guide rod 306. The guide rod 306 provides a good guiding effect for the locking block 304, making the sliding of the locking block 304 more stable. A sliding groove 308 is provided on the sliding sleeve 303, and a push rod 309 is slidably connected in the sliding groove 308. The push rod 309 is fixedly connected to the locking block 304. When it is necessary to release the limit on the sliding sleeve 303, the push rod 309 is pushed to slide in the sliding groove 308. The sliding of the push rod 309 simultaneously drives the locking block 304 to slide out of the locking groove 305, and no longer obstructs the sliding of the sliding sleeve 303. Therefore, the setting of the push rod 309 facilitates the operation of the locking block 304.
[0025] As a technical optimization of this utility model, the cross-section of the well ring 1 is a stepped structure, and the overall cross-section of the inner cover 401 is a "U" shaped structure. The well ring 1 is designed as a stepped structure, which can provide a precise installation position and limit for the well cover body 2 and the inner cover 401, so that the well cover body 2 and the inner cover 401 can be accurately placed on the well ring 1.
[0026] As a technical optimization of this utility model, the inner cover 401 is provided with multiple slots 404. The slots 404 on the inner cover 401 facilitate the filtering of debris carried by rainwater and prevent debris from entering the well. Multiple positioning posts 402 are fixedly connected inside the well ring 1. Multiple positioning holes 403 are provided on the edge of the inner cover 401. The positioning posts 402 engage with the positioning holes 403. The top of the positioning post 402 has a trapezoidal structure. By engaging the positioning posts 402 on the well ring 1 with the positioning holes 403 on the inner cover 401, the inner cover 401 is provided with a good positioning function, which enhances the stability of the inner cover 401 after installation.
[0027] As a technical optimization of this utility model, the manhole cover body 2 is provided with multiple drainage holes 5. During daily low-flow drainage, rainwater can flow in through the multiple drainage holes 5 on the manhole cover body 2, so there is no need to open the manhole cover body 2. The inner wall of the manhole cover body 2 is fixedly connected with reinforcing ribs 6. The reinforcing ribs 6 enhance the structural strength of the manhole cover body 2, making it less prone to damage under frequent opening and closing and vehicle running, thus extending the service life of the manhole cover body 2.
[0028] In use, to prevent severe road flooding due to slow drainage during heavy rain, the manhole cover body 2 can be opened to improve drainage efficiency. During operation, the manhole cover body 2 is rotated upwards. This rotation causes the connecting rod 302 to move, which in turn drives the sliding sleeve 303 to slide. Simultaneously, the sliding sleeve 303 drives the rotating rod 301 to rotate. At this time, the connecting rod 302 remains retracted inside the sliding sleeve 303, abutting against the locking block 304, and the locking block 304 compresses against the spring 307. When the manhole cover body 2 rotates to a 90-degree vertical position, the locking block 304 on the sliding sleeve 303 aligns with the locking groove 305 on the connecting rod 302. At this time, the spring 307 resets and drives the locking block 304 to engage with the locking groove 305, thereby quickly limiting the sliding sleeve 303. This allows the rotating rod 301 and the connecting rod 302 to cooperate in supporting the manhole cover body 2, preventing the manhole cover body 2 from rotating back. At this time, the manhole cover body 2 is stably supported and remains in an upright position, which not only improves drainage efficiency and reduces road water accumulation, but also serves as a warning sign. This design alerts pedestrians and vehicles to the manhole opening, improving safety during drainage operations. When the drainage operation is complete and the manhole cover body 2 needs to be closed, push the push rod 309 away from the slot 305, causing it to slide within the slide groove 308. Simultaneously, the push rod 309 drives the locking block 304 to slide along the guide rod 306 and compress the spring 307, thereby disengaging the locking block 304 from the slot 305 and releasing the restriction on the sliding sleeve 303. Then, rotate the manhole cover body 2 downwards to close it. When installing the inner cover 401, align the positioning hole 403 on the inner cover 401 with the positioning post 402 on the well ring 1, and then lower the inner cover 401 to quickly complete the installation of the inner cover 401. During the drainage process, the multiple slots 404 on the inner cover 401 play a filtering role. Rainwater flows into the well through the slots 404, while debris is intercepted above the inner cover 401 to prevent it from entering the well and causing blockage. At the same time, the inner cover 401 can also prevent pedestrians and objects from accidentally falling into the rainwater well.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A manhole cover for reducing road water accumulation, comprising a manhole ring (1), characterized in that: The well ring (1) is rotatably connected to the well cover body (2), and the well cover body (2) is equipped with a support structure (3). The support structure (3) includes a rotating rod (301). The well ring (1) is rotatably connected to the rotating rod (301). The end of the rotating rod (301) is rotatably connected to two sliding sleeves (303). The inner wall of the well cover body (2) is fixedly connected to two connecting rods (302). The two sliding sleeves (303) are slidably connected to the two connecting rods (302). The sliding sleeves (303) are slidably connected to a locking block (304). One of the connecting rods (302) has a locking groove (305). The locking block (304) engages with the locking groove (305). The well ring (1) is equipped with a filter structure (4). The filter structure (4) includes an inner cover (401). The well ring (1) is equipped with an inner cover (401).
2. A manhole cover for reducing road flooding according to claim 1, characterized in that: The sliding sleeve (303) has a "T" shaped cross section, and the end of the locking block (304) has a beveled structure.
3. A manhole cover for reducing road flooding according to claim 2, characterized in that: A guide rod (306) is fixedly connected to the sliding sleeve (303), and the locking block (304) is slidably connected to the guide rod (306).
4. A manhole cover for reducing road flooding according to claim 3, characterized in that: A spring (307) is sleeved on the outside of the guide rod (306). One end of the spring (307) is fixedly connected to the sliding sleeve (303), and the other end of the spring (307) is fixedly connected to the locking block (304).
5. A manhole cover for reducing road flooding according to claim 4, characterized in that: The sliding sleeve (303) has a sliding groove (308), and a push rod (309) is slidably connected in the sliding groove (308). The push rod (309) is fixedly connected to the locking block (304).
6. A manhole cover for reducing road flooding according to claim 1, characterized in that: The well ring (1) has a stepped cross-section, and the inner cover (401) has a U-shaped cross-section.
7. A manhole cover for reducing road flooding according to claim 6, characterized in that: Multiple positioning posts (402) are fixedly connected inside the well ring (1), and multiple positioning holes (403) are opened on the edge of the inner cover (401). The positioning posts (402) engage with the positioning holes (403).
8. A manhole cover for reducing road flooding according to claim 7, characterized in that: The top of the positioning post (402) is trapezoidal, and the inner cover (401) has multiple slots (404).
9. A manhole cover for reducing road flooding according to claim 1, characterized in that: The manhole cover body (2) has multiple drainage holes (5), and the inner wall of the manhole cover body (2) is fixedly connected with reinforcing ribs (6).