A well lid for preventing blockage of a sewer

Abstract

The utility model relates to the technical field of well lid, concretely is a kind of well lid of anti-blocking sewer, well lid pedestal 1 is equipped with the embedded slot for supporting cover plate. The edge of each side of the bottom of cover plate is provided with a connecting side wall, and the inner side of the connecting side wall is provided with a connecting tab. The anti-blocking structure includes a connecting frame and a filter cover connected to each other. The connecting frame is connected to the connecting tab. The filter cover includes a cleaning port that is detachably connected to a movable inclined plate. The filter inclined plate is hingedly connected to the well lid pedestal away from the cover body. The cover body is designed to be rotatable with the well lid pedestal. An anti-blocking structure is designed below the cover body. The filter cover accumulates leaves and impurities. When the accumulation reaches a certain amount, the cover body is rotated, and the movable inclined plate is removed. The leaves and impurities accumulated in the filter cover can be removed, greatly reducing the labor intensity of sanitation workers when cleaning leaves and impurities.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, specifically a manhole cover that prevents clogging of sewers. Background Technology

[0002] Manhole covers (also known as inspection manhole covers or storm drain grates) connecting urban storm drain pipes are key components of urban drainage systems. Their main body is typically made of high-strength cast iron, composite resin, or other pressure- and corrosion-resistant materials. The surface is designed with textured surfaces or strip-shaped perforations to facilitate rapid rainwater flow and debris filtration. Integrated grilles, anti-fall nets, and other anti-clogging and anti-fall structures optimize pipe safety. As a multi-functional municipal facility, it not only undertakes the core task of diverting surface runoff and matching rainfall intensity (flow velocity at pipe interfaces ≥ 0.6 m / s during heavy rain), but also provides a manual inspection passage for pipe network maintenance and covers manhole openings to prevent people and vehicles from falling or foreign objects from entering.

[0003] From a municipal construction perspective, its structural design can reduce the risk of pipe blockage by more than 30% by intercepting debris (such as leaves and plastic), directly improving drainage efficiency during heavy rain and reducing the probability of urban flooding. During heavy rain, it can also increase the instantaneous drainage load, reduce the pressure on emergency dredging, and enhance the flexibility of personnel deployment.

[0004] For frontline cleaning staff, anti-clogging manhole covers significantly optimize work processes and safety. When used with mechanized vacuum equipment, they can reduce the time required to clean a single manhole, prevent workers from entering the manhole and being exposed to harmful gases, reduce mosquito and fly breeding, and improve working hygiene conditions.

[0005] Patent CN218264244U discloses an anti-clogging ductile iron manhole cover. Its innovative structure includes a ductile iron manhole cover body, a cover body, an anti-clogging hopper, and an anti-clogging filter. The anti-clogging hopper adopts a hollow funnel-shaped structure, achieving easy and stable installation through the interlocking of the insertion rod and the insertion port, preventing tilting. The sloping surface design of the anti-clogging hopper helps concentrate water flow to the central area for centralized filtration. The anti-clogging filter is made of stainless steel, facilitating water filtration and individual disassembly and cleaning, effectively preventing clogging by leaves and branches, improving ease of use and safety. However, this application does not allow for a clear view of the accumulation of branches and debris inside the manhole cover from a top-down perspective. If the accumulated branches and debris are not cleaned promptly, it will affect the instantaneous drainage capacity, causing rainwater accumulation on the road surface.

[0006] However, this solution still requires opening the cover and moving the anti-clogging filter vertically, which requires considerable physical strength and greatly increases the workload for sanitation workers. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a manhole cover that prevents clogging of sewers, which can be more easily removed when it is necessary to clean up the leaves and debris accumulated under the manhole cover, thereby reducing the workload of sanitation workers.

[0008] To achieve the above objectives, this utility model provides the following technical solution: A manhole cover for preventing clogging of sewers includes a manhole cover base and an openable and closable cover body hinged to the manhole cover base. The cover body includes a cover plate and an anti-clogging structure. A hole is provided on the top surface of the cover plate. The manhole cover base is provided with a groove for supporting the cover plate; Each edge of the bottom of the cover plate has a downward protruding connecting sidewall, and the inner side of the connecting sidewall has an inward protruding connecting plate; The anti-clogging structure includes a connecting frame and a filter cover that are connected to each other. The connecting frame is connected to the connecting protrusion. The filter cover includes a cleaning port, which is detachably connected to a movable inclined plate. The shortest distance from the lowest point of the filter cover on the side where the cleaning port is located to the hinge point between the cover and the manhole cover base is less than the distance from the hinge point between the cover and the manhole cover base to the opposite side.

[0009] As a preferred embodiment of the present invention, the filter cover includes a filter base plate and a filter side plate. A cleaning scraper is provided on the inner side of the filter side plate opposite to the movable inclined plate. Protrusions are provided on both sides of the cleaning scraper. A sliding groove is provided on the connecting frame corresponding to the protrusions. The protrusions are connected to the pull rod. The pull rod is connected to the sliding groove and extends out of the connecting frame.

[0010] As a preferred embodiment of the present invention, the filter side plates connected to both sides of the movable inclined plate are provided with connecting grooves, and both sides of the movable inclined plate are connected to the connecting grooves. The filter bottom plate is provided with a fixing structure near the movable inclined plate. The fixing structure includes a baffle, a connecting rod, a spring, and a protruding plate. The baffle is connected to the movable inclined plate when it is in a fixed position. The connecting rod passes through the protruding plate and is connected to the baffle. The spring is sleeved on the connecting rod. As a preferred embodiment of the present invention, the two pull rods extending out of the connecting frame are connected by a synchronization plate.

[0011] As a preferred embodiment of the present invention, the filter holes on the movable inclined plate, the filter base plate, and the filter side plate are of the same size.

[0012] As a preferred embodiment of the present invention, the bottom of the connecting sidewall is provided with a shock-absorbing ring that is connected to the groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By designing a cover that can be rotated and opened from the manhole cover base, and designing an anti-clogging structure under the cover, the cover can filter out leaves and impurities. When a certain amount has accumulated, simply rotate the cover and remove the movable inclined plate to remove the leaves and impurities accumulated in the filter, which greatly reduces the labor intensity of sanitation workers when cleaning leaves and impurities.

[0014] The filter cover is designed such that the shortest distance from the lowest point on the side where the cleaning port is located to the hinge point between the cover and the manhole cover base is less than the distance from the hinge point between the cover and the manhole cover base to the opposite side, ensuring that the filter cover can smoothly follow the cover and rotate out of the manhole cover base when the cover rotates.

[0015] The filter cover is made easier to clean by designing a cleaning scraper. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a top view of the present invention; Figure 2 for Figure 1 Cross-sectional view at point AA; Figure 3 for Figure 2 Enlarged detail view of point B in the middle; Figure 4 for Figure 2 Detailed magnified view of point C in the middle; Figure 5 This is a plan view of the cleaning scraper in this utility model. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] Reference Figures 1 to 5As shown, a manhole cover for preventing blockage of sewers includes a manhole cover base 1 and a cover body 2 that can be opened and closed and is hinged to the manhole cover base 1. The cover body 2 includes a cover plate 3 and an anti-blocking structure 4. The top surface of the cover plate 3 is provided with a hole 301, and the manhole cover base 1 is provided with a groove 101 for supporting the cover plate 3.

[0020] The bottom edge of the cover plate 3 has a downward protruding connecting sidewall 302, and the inner side of the connecting sidewall 302 has an inward protruding connecting plate 303.

[0021] The anti-clogging structure 4 includes a connecting frame 401 and a filter cover 402 that are connected to each other. The connecting frame 401 is connected to the connecting protrusion 303. The filter cover 402 includes a cleaning port 4021. The cleaning port 4021 is detachably connected to the movable inclined plate 5. The filter inclined plate 4021 is located away from the cover body 2 and at the hinged end of the well cover base 1.

[0022] By designing a cover 2 that can be rotated and opened with the manhole cover base 1, and designing an anti-clogging structure 4 below the cover 2, the leaf impurities are accumulated through the filter cover 402. When a certain amount is accumulated, simply rotate the cover 2 and remove the movable inclined plate 5 to remove the leaf impurities accumulated in the filter cover 402, which greatly reduces the labor intensity of sanitation workers when cleaning leaf impurities.

[0023] The shortest distance from the lowest point of the filter cover 402 on the side where the cleaning port 4021 is located to the hinge point between the cover 2 and the manhole cover base 1 is less than the distance from the hinge point between the cover 2 and the manhole cover base 1 to the opposite side.

[0024] The filter cover 402 includes a filter base plate 4022 and a filter side plate 4023. A cleaning scraper 6 is provided on the inner side of the filter side plate 4023 opposite to the movable inclined plate 5. Protrusions 601 are provided on both sides of the cleaning scraper 6. A sliding groove 4011 is provided on the connecting frame 401 corresponding to the protrusions 601. The protrusions 601 are connected to the pull rod 7. The pull rod 7 is connected to the sliding groove 4011 and extends out of the connecting frame 4011.

[0025] Two pull rods 7 extend out of the slide groove 4011 and are connected by a synchronization plate 8. When garbage needs to be cleaned, the movable inclined plate 5 is first removed from the filter cover 402, and then the cleaning scraper 7 is pulled by pulling the synchronization plate 8 to push out the garbage accumulated in the filter cover 402, making garbage cleaning convenient.

[0026] The filter side plates 4023 connected to both sides of the movable inclined plate 5 are provided with connecting grooves 40231. The two sides of the movable inclined plate 5 are connected to the connecting grooves 40231. The filter bottom plate 4022 is provided with a fixing structure near the movable inclined plate 5. The fixing structure includes a baffle 901, a connecting rod 902, a spring 903 and a protruding plate 904. The baffle 901 is connected to the movable inclined plate 5 when it is in the fixed position. The connecting rod 902 passes through the protruding plate 904 and is connected to the baffle 901. The spring 903 is sleeved on the connecting rod 902. When it is necessary to remove or insert the movable inclined plate 5, first pull the connecting rod 902 in the extending direction. The baffle 901 moves with the connecting rod 902. At this time, the movable inclined plate 5 can be inserted or removed. Then, release the connecting rod 902. The spring 903 loses its tension and returns to its original position. The connecting rod 902 moves in the opposite direction of the extending direction due to the elastic force of the spring 903. If this is the action of inserting the movable inclined plate 5, the baffle 901 will abut against the movable inclined plate 5, thus fixing the movable inclined plate 5. 9 The filter holes on the movable inclined plate 5, the filter base plate 4022, and the filter side plate 4023 are all the same size. The bottom of the connecting side wall 302 is provided with a shock-absorbing ring 304 that connects to the groove 101.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A manhole cover for preventing blockage of sewers, comprising a manhole cover base (1) and an openable and closable cover body (2) hinged to the manhole cover base (1), the cover body (2) comprising a cover plate (3) and an anti-blocking structure (4), wherein the top surface of the cover plate (3) is provided with a hole (301), characterized in that, The manhole cover base (1) is provided with a groove (101) for supporting the cover plate (3). The bottom edge of the cover plate (3) is provided with a connecting sidewall (302) protruding downwards, and the inner side of the connecting sidewall (302) is provided with a connecting protrusion plate (303). The anti-clogging structure (4) includes a connecting frame (401) and a filter cover (402) that are connected to each other. The connecting frame (401) is connected to the connecting protrusion (303). The filter cover (402) includes a cleaning port (4021). The cleaning port (4021) is detachably connected to the movable inclined plate (5). The shortest distance from the lowest point of the filter cover (402) on the side where the cleaning port (4021) is located to the hinge point of the cover (2) and the manhole cover base (1) is less than the distance from the hinge point of the cover (2) and the manhole cover base (1) to the opposite side.

2. The manhole cover for preventing blockage of sewers according to claim 1, characterized in that, The filter cover (402) includes a filter base plate (4022) and a filter side plate (4023). A cleaning scraper (6) is provided on the inner side of the filter side plate (4023) opposite to the movable inclined plate (5). The cleaning scraper (6) has protrusions (601) on both sides. The connecting frame (401) has a groove (4011) corresponding to the protrusions (601). The protrusions (601) are connected to the pull rod (7). The pull rod (7) is connected to the groove (4011) and extends out of the connecting frame (401).

3. A manhole cover for preventing blockage of sewers according to claim 2, characterized in that, A connecting groove (40231) is provided on the filter side plate (4023) connected to both sides of the movable inclined plate (5). The two sides of the movable inclined plate (5) are connected to the connecting groove (40231). The filter bottom plate (4022) is provided with a fixing structure near the movable inclined plate (5). The fixing structure includes a baffle (901), a connecting rod (902), a spring (903), and a convex plate (904). The baffle (901) is connected to the movable inclined plate (5) when it is in a fixed position. The connecting rod (902) passes through the convex plate (904) and is connected to the baffle (901). The spring (903) is sleeved on the connecting rod (902).

4. A manhole cover for preventing blockage of sewers according to claim 3, characterized in that, The two pull rods (7) extend out of the slide (4011) and are connected by a timing plate (8).

5. A manhole cover for preventing blockage of sewers according to claim 4, characterized in that, The filter holes on the movable inclined plate (5), the filter base plate (4022), and the filter side plate (4023) are of the same size.

6. A manhole cover for preventing blockage of sewers according to claim 1, characterized in that, The bottom of the connecting sidewall (302) is provided with a shock-absorbing ring (304) that is connected to the groove (101).

Images