Multifunctional grating well lid

By designing a multifunctional grid manhole cover, which uses a combination of flexible sealing strips and beveled rubber blocks, the problems of odor leakage and mosquitoes flying out in the manhole system are solved, achieving efficient drainage and noise reduction, and enhancing the stability and connection strength of the manhole cover.

CN224213490UActive Publication Date: 2026-05-08ZHEJIANG HENGCHANG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HENGCHANG TECH CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Manhole systems have problems such as odor emission and mosquitoes flying out during use, and fallen leaves can easily enter and accumulate, affecting the health and well-being of residents.

Method used

A multifunctional grid manhole cover is designed, which adopts a combination structure of flexible sealing strip and beveled rubber block. The flexible sealing strip is set in an arc shape to prevent odor from spreading and mosquitoes from flying out, while the beveled rubber block guides fallen leaves to be swept out. At the same time, a strong connection and noise reduction are achieved through connecting components and a slot structure.

Benefits of technology

It effectively prevents odors from escaping and insects from flying out, improves drainage efficiency, reduces leaf accumulation, reduces noise when vehicles pass by, and enhances the stability and connection strength of the manhole cover.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224213490U_ABST
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Abstract

Flexible sealing strips are symmetrically arranged between any two adjacent supporting strips, the sides, away from the supporting strips, of the two symmetrically-arranged flexible sealing strips abut against each other, and at the moment, the functions of preventing peculiar smell from overflowing, preventing mosquitoes from flying out and preventing fallen leaves from falling into the well lid are achieved; when water drainage needs to be achieved, water can leak along the gap between the two flexible sealing strips, the more the water amount gathered between the two supporting strips is, the higher the pressure of the water on the arc-shaped parts of the two flexible sealing strips is, the larger the gap generated between the two flexible sealing strips is, and therefore the higher the water leakage speed is; and meanwhile, due to the arrangement of the guide inclined planes of the bevel rubber blocks, the fallen leaves are not prone to being accumulated in the included angles formed between the well base and the ends of the two supporting strips in the sweeping-out process, and the fallen leaves between the two adjacent supporting strips and the two symmetrically-arranged flexible sealing strips can be conveniently guided to be swept out of the well base.
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Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, and in particular to a multifunctional grid manhole cover. Background Technology

[0002] Manhole systems refer to vertical structures used for connecting, inspecting, maintaining, and installing pipelines and equipment in various underground pipeline facilities such as power, communication, gas, heating, water supply, drainage, cable television, and traffic signals and monitoring. A manhole system consists of manholes and manhole covers, with the manhole cover including the manhole base and cover plate.

[0003] The main function of the manhole cover is drainage, but the following problems exist in the use of manholes: (1) Firstly, rainwater wells will produce odors due to the fermentation of fallen leaves and backflow of sewage pipes, affecting residents' lives; (2) Water accumulation in manholes becomes a breeding ground for mosquitoes, and mosquitoes flying out from the manhole cover pose a potential risk to residents' health. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional grid manhole cover that can reduce the spread of odors and the escape of mosquitoes from manholes.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a multifunctional grid manhole cover, including a manhole base and a cover plate disposed within the manhole base. The cover plate includes multiple support strips arranged in a row and a connecting component for connecting the multiple support strips. Flexible sealing strips are symmetrically arranged between any two adjacent support strips. The flexible sealing strips are arranged in an arc shape that bends downwards in the direction away from the support strips, and the sides of the two symmetrically arranged flexible sealing strips that are away from the support strips abut against each other. An angled rubber block is disposed between the ends of any two adjacent support strips. The angled rubber block presses down on the ends of the two symmetrically arranged flexible sealing strips. The angled rubber block is provided with a guide slope to guide fallen leaves between the two adjacent support strips and the two symmetrically arranged flexible sealing strips to be swept out of the manhole base.

[0006] By adopting the above technical solution, flexible sealing strips are symmetrically arranged between any two adjacent support strips, and the two symmetrically arranged flexible sealing strips abut against each other on the side away from the support strips. This prevents odors from escaping, mosquitoes from flying out, and fallen leaves from falling in. When drainage is required, water can seep through the gap between the two flexible sealing strips. The more water accumulates between the two support strips, the greater the water pressure on the arc-shaped part of the two flexible sealing strips, resulting in a larger gap between the two flexible sealing strips and thus a faster water leakage rate. At the same time, the guide slope of the angled rubber block prevents fallen leaves from accumulating in the angle formed between the well base and the ends of the two support strips during the sweeping process. This facilitates the sweeping of fallen leaves between the two adjacent support strips and the two symmetrically arranged flexible sealing strips out of the well base.

[0007] A further feature of this invention is that: anti-detachment grooves are symmetrically arranged on both sides of the support strip; a first insertion part is provided on the flexible sealing strip and inserted into the anti-detachment groove; and a second insertion part is provided on both sides of the angled rubber block and inserted into two adjacent anti-detachment grooves.

[0008] By adopting the above technical solution, anti-detachment grooves are provided on both sides of the support strip, and a first insertion part is provided on the flexible sealing strip to be inserted into the anti-detachment groove, thereby realizing the installation of the flexible sealing strip. A second insertion part is provided on both sides of the beveled rubber block to be inserted into two adjacent anti-detachment grooves, thereby realizing the installation of the beveled rubber block.

[0009] A further feature of this invention is that the lower surface of the bottom of the angled rubber block is provided with a partition piece located between two symmetrically arranged flexible sealing strips, and the side of the flexible sealing strip away from the support strip abuts against the side of the partition piece.

[0010] By adopting the above technical solution, based on the fact that the two symmetrically arranged flexible sealing strips are in contact on the side away from the support strip, and because the flexible sealing strips are arranged in a downward curved arc, there is a problem during use where the side of one flexible sealing strip away from the support strip flips up and presses against the side of the other flexible sealing strip away from the support sleeve, which will affect the water seepage efficiency. By setting a partition plate, the side of the flexible sealing strip away from the support strip is pressed against the side of the partition plate. Under the force of the end of the flexible sealing strip, the problem of one flexible sealing strip away from the support strip flipping up and pressing against the side of the other flexible sealing strip away from the support sleeve is solved.

[0011] A further feature of this invention is that the well base is symmetrically provided with slots at both ends along the length of the support bar, and each end of the support bar is provided with an arc-shaped locking block that is embedded in the slot during installation deformation.

[0012] By adopting the above technical solution, when the cover plate is installed on the well base, the arc-shaped locking blocks at both ends of the support bar and the locking groove of the well base cooperate with each other to achieve a firm connection between the two.

[0013] A further feature of this invention is that the cross-section of the support bar is T-shaped, the well seat has a square support portion for the bottom of the support bar to rest on, multiple connecting components are provided and arranged along the length of the support bar, each connecting component includes a connecting bar, a screw, and two nuts, the bottom of the support bar has a first through hole, the connecting bar has multiple U-shaped connecting seats for the bottom of the support bar to be embedded in, the connecting seats have second through holes corresponding to the first through hole on both sides, the two ends of the connecting bar have support seats that abut against the sides of the support bar, the support seats have third through holes corresponding to the first through hole, the screw passes through the first through holes of the multiple support bars, the second through holes of the multiple connecting seats, and the third through holes of the two support seats, and the two nuts are threaded to the two ends of the screw and respectively press against the outer sides of the two support bars located at the edges.

[0014] By adopting the above technical solution, the support bar is firstly T-shaped, which makes linear contact between the support bar and the well base, thereby reducing noise generated during vehicle passage; at the same time, the connection component enables the connection of multiple support bars. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 yes Figure 1 A magnified view of the area located at point A;

[0018] Figure 4 This is a partial exploded view of the cover plate in this utility model;

[0019] Figure 5 yes Figure 4 A magnified view of the area located at point B.

[0020] Reference numerals: 1. Well base; 1-1. Slot; 1-2. Square support; 2. Cover plate; 2-1. Support bar; 2-1-1. Anti-disengagement groove; 2-1-2. Arc-shaped locking block; 2-2. Connecting assembly; 2-2-1. Connecting bar; 2-2-1-1. Connecting seat; 2-2-1-2. Support seat; 2-2-2. Screw; 2-2-3. Nut; 3. Flexible sealing strip; 3-1. First insertion part; 4. Angled rubber block; 4-1. Second insertion part; 4-2. Separating piece; 4-3. Guide slope. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Example: A multifunctional grating manhole cover, such as Figure 1 and Figure 2 As shown, it includes a well base 1 and a cover plate 2 disposed inside the well base 1. The cover plate 2 includes a plurality of support bars 2-1 arranged in a row and a connecting component 2-2 for connecting the plurality of support bars 2-1.

[0023] like Figures 2 to 5 As shown, flexible sealing strips 3 are symmetrically arranged between any two adjacent support strips 2-1. The flexible sealing strips 3 are arranged in a downward curved arc shape in the direction away from the support strips 2-1, and the sides of the two symmetrically arranged flexible sealing strips 3 away from the support strips 2-1 abut against each other. An angled rubber block 4 is arranged between the ends of any two adjacent support strips 2-1. The angled rubber block 4 presses down on the ends of the two symmetrically arranged flexible sealing strips 3. The angled rubber block 4 is provided with a guide slope 4-3 to guide the fallen leaves between the two adjacent support strips 2-1 and the two symmetrically arranged flexible sealing strips 3 to be swept out of the well seat 1.

[0024] like Figures 2 to 5 As shown, anti-detachment grooves 2-1-1 are symmetrically arranged on both sides of the support strip 2-1. The flexible sealing strip 3 is provided with a first insertion part 3-1 that is inserted into the anti-detachment groove 2-1-1. The first insertion part 3-1 is hollow. The beveled rubber block 4 is provided with a second insertion part 4-1 on both sides that is inserted into two adjacent anti-detachment grooves 2-1-1. A partition piece 4-2 is provided on the lower surface of the bottom of the beveled rubber block 4, located between the two symmetrically arranged flexible sealing strips 3. The side of the flexible sealing strip 3 away from the support strip 2-1 abuts against the side of the partition piece 4-2.

[0025] like Figures 2 to 5As shown, the cross-section of the support bar 2-1 is T-shaped. A square support portion 1-2 is provided inside the well base 1 for the bottom of the support bar 2-1 to rest. Multiple connecting components 2-2 are provided and arranged along the length of the support bar 2-1. Each connecting component 2-2 includes a connecting bar 2-2-1, a screw 2-2-2, and two nuts 2-2-3. A first through hole is provided at the bottom of the support bar 2-1. Multiple U-shaped connecting seats 2-2-1-1 are provided on the connecting bar 2-2-1 for the bottom of the support bar 2-1 to be inserted into. The two sides of the connecting bar 2-2-1 are provided with second through holes corresponding to the first through holes. The two ends of the connecting bar 2-2-1 are provided with support seats 2-2-1-2 that abut against the side of the support bar 2-1. The support seats 2-2-1-2 are provided with third through holes corresponding to the first through holes. The screw 2-2-2 passes through the first through holes of multiple support bars 2-1, the second through holes of multiple connecting seats 2-2-1-1, and the third through holes of two support seats 2-2-1-2. Two nuts 2-2-3 are threaded to both ends of the screw 2-2-2 and press against the outer side of the two support bars 2-1 located at the edge.

[0026] like Figure 2 , Figure 4 and Figure 5 As shown, the well base 1 is symmetrically provided with slots 1-1 at both ends along the length of the support bar 2-1. At both ends of the support bar 2-1, there are arc-shaped locking blocks 2-1-2 that are embedded in the slots 1-1 during the installation deformation process. The cover plate 2 can be pressed in by a press during the installation process.

[0027] Implementation effect: First, flexible sealing strips 3 are symmetrically arranged between any two adjacent support strips 2-1, and the two symmetrically arranged flexible sealing strips 3 abut against each other on the side away from the support strips 2-1. This has the function of preventing odors from spreading, mosquitoes from flying out, and fallen leaves from falling in. When drainage is required, water can seep through the gap between the two flexible sealing strips 3. The more water that accumulates between the two support strips 2-1, the greater the water pressure on the arc-shaped part of the two flexible sealing strips 3, which makes the gap between the two flexible sealing strips 3 larger, thus making the water seepage faster. At the same time, the guide slope of the angled rubber block 4 makes it difficult for fallen leaves to accumulate in the angle formed between the well base 1 and the ends of the two support strips 2-1 during the sweeping process. This facilitates the sweeping of fallen leaves between the two adjacent support strips 2-1 and the two symmetrically arranged flexible sealing strips 3 out of the well base 1.

[0028] The support strip 2-1 has anti-detachment grooves 2-1-1 on both sides, and the flexible sealing strip 3 has a first insertion part 3-1 that is inserted into the anti-detachment groove 2-1-1, thereby realizing the installation of the flexible sealing strip 3. The angled rubber block 4 has a second insertion part 4-1 that is inserted into two adjacent anti-detachment grooves 2-1-1 on both sides, thereby realizing the installation of the angled rubber block 4.

[0029] With two symmetrically arranged flexible sealing strips 3 abutting each other on the side away from the support strip 2-1, and because the flexible sealing strips 3 are curved downwards, during use, there is a problem that the side of one flexible sealing strip 3 away from the support strip 2-1 flips upwards and presses against the side of the other flexible sealing strip 3 away from the support sleeve, which affects the water seepage efficiency. By setting the partition plate 4-2, the side of the flexible sealing strip 3 away from the support strip 2-1 is pressed against the side of the partition plate 4-2. Under the force of the end of the flexible sealing strip 3, the problem of one flexible sealing strip 3 away from the support strip 2-1 flipping upwards and pressing against the side of the other flexible sealing strip 3 away from the support sleeve is solved.

[0030] When the cover plate 2 is installed on the manhole base 1, the arc-shaped locking blocks 2-1-2 at both ends of the support bar 2-1 and the locking groove 1-1 of the manhole base 1 cooperate with each other to achieve a firm connection between the two. First, the support bar 2-1 is T-shaped, so that the support bar 2-1 and the manhole base 1 have linear contact, thereby reducing the noise generated during vehicle passage; at the same time, the connecting component 2-2 enables the connection of multiple support bars 2-1.

[0031] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A multifunctional grid manhole cover, comprising a manhole base (1) and a cover plate (2) disposed within the manhole base (1), the cover plate (2) comprising a plurality of support strips (2-1) arranged in a row, and a connecting assembly (2-2) for connecting the plurality of support strips (2-1), characterized in that: A flexible sealing strip (3) is symmetrically arranged between any two adjacent support strips (2-1). The flexible sealing strip (3) is arranged in an arc shape that bends downward in the direction away from the support strip (2-1). The two symmetrically arranged flexible sealing strips (3) abut against each other on the side away from the support strip (2-1). An angled rubber block (4) is provided between the ends of any two adjacent support bars (2-1). The angled rubber block (4) presses down on the ends of two symmetrically arranged flexible sealing bars (3). The angled rubber block (4) is provided with a guide slope (4-3) to guide the fallen leaves between the two adjacent support bars (2-1) and the two symmetrically arranged flexible sealing bars (3) to be swept out of the well seat (1).

2. The multifunctional grid manhole cover according to claim 1, characterized in that: The support bar (2-1) is symmetrically provided with anti-detachment grooves (2-1-1) on both sides. The flexible sealing bar (3) is provided with a first insertion part (3-1) inserted into the anti-detachment groove (2-1-1). The angled rubber block (4) is provided with a second insertion part (4-1) inserted into two adjacent anti-detachment grooves (2-1-1) on both sides.

3. A multifunctional grid manhole cover according to claim 1, characterized in that: The bottom surface of the angled rubber block (4) is provided with a partition plate (4-2) located between two symmetrically arranged flexible sealing strips (3), and the side of the flexible sealing strip (3) away from the support strip (2-1) abuts against the side of the partition plate (4-2).

4. A multifunctional grid manhole cover according to claim 1, characterized in that: The well base (1) is symmetrically provided with slots (1-1) at both ends along the length of the support bar (2-1), and the two ends of the support bar (2-1) are respectively provided with arc-shaped blocks (2-1-2) that are embedded in the slots (1-1) during installation deformation.

5. A multifunctional grid manhole cover according to claim 1, characterized in that: The support bar (2-1) has a "T" shaped cross-section. The well base (1) has a square support portion (1-2) for the bottom of the support bar (2-1) to rest on. Multiple connecting components (2-2) are arranged along the length of the support bar (2-1). Each connecting component (2-2) includes a connecting bar (2-2-1), a screw (2-2-2), and two nuts (2-2-3). The bottom of the support bar (2-1) has a first through hole. Multiple "U"-shaped connecting seats (2-2-1-1) are provided on the connecting bar (2-2-1) for the bottom of the support bar (2-1) to be embedded in. The two sides of the connecting strip (2-2-1) are provided with second through holes corresponding to the first through holes. The two ends of the connecting strip (2-2-1) are provided with support seats (2-2-1-2) that abut against the side of the supporting strip (2-1). The support seats (2-2-1-2) are provided with third through holes corresponding to the first through holes. The screw (2-2-2) passes through the first through holes of multiple supporting strips (2-1), the second through holes of multiple connecting seats (2-2-1-1), and the third through holes of two support seats (2-2-1-2). The two nuts (2-2-3) are threaded to the two ends of the screw (2-2-2) and respectively press against the outer side of the two supporting strips (2-1) located at the edge.