Anti-blocking manhole cover

By designing a magnetic adsorption and plug-in limiting structure on the manhole cover, the problem of silt accumulation and difficult cleaning of the filter box is solved, achieving stable fixation and convenient cleaning, thus improving the practicality of the manhole cover.

CN224451718UActive Publication Date: 2026-07-03SHANGHAI JINYU NEW MATERIAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JINYU NEW MATERIAL TECH CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-03

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    Figure CN224451718U_ABST
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Abstract

The utility model provides a kind of anti-blocking manhole cover, including lid, L type board, filter box and trapezoidal plate, first magnetic sheet is respectively installed in lid lower left and right ends, L type board vertical end right side middle part is fixedly connected with side plate, positioning rod is slidably installed in the upper side plate, the lower end of positioning rod is fixedly connected with magnetic column, the upper end of positioning rod is fixedly connected with second magnetic sheet, spring is fixedly connected with the spring of the lower end of second magnetic sheet and is sleeved on the outside of positioning rod, the upper middle part of trapezoidal plate is fixedly connected with handle plate by support column, the design solves the original device filter box in the process of using, inner wall is easy to accumulate silt, most silt will still be attached on filter box inner wall after garbage is poured out, it is not easy to clean, the utility model structure is reasonable, practicality is good, set up the cleaning component of adjustable position can clean the silt attached on filter box inner wall, reduce cleaning difficulty, improve the stability of filter box placement simultaneously using insertion limiting structure, convenient to disassemble.
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Description

Technical Field

[0001] This utility model is an anti-clogging manhole cover, belonging to the field of manhole cover technology. Background Technology

[0002] Urban construction involves many underground pipelines, such as sewers, underground gas pipelines, water supply pipelines, power pipelines, communication pipelines, and defense pipelines. These pipelines have an outlet to the ground at intervals. The section from the pipeline to the ground is called a manhole. The manhole opening is usually flush with the ground, so a cover is needed to cover the manhole. The cover is called a manhole cover. Manhole covers are usually made of reinforced concrete, metal, reinforced plastic, etc., and are mainly round or square in shape.

[0003] Patent No. CN220953792U discloses an anti-clogging manhole cover. It involves placing a filter box below the manhole cover, which is fixed inside the manhole body via a connecting plate and a second step. The manhole cover is installed at the manhole opening, with its lower surface abutting against a U-shaped plate, thus firmly securing the filter box inside the manhole body. The U-shaped plate is easy to grip; when there are too many impurities inside the filter box, the manhole cover can be removed, and the filter box can be taken out by grasping the U-shaped plate. The whole process is convenient and quick. However, during use, sludge easily accumulates on the inner wall of the filter box. After emptying the garbage, most of the sludge remains on the inner wall of the filter box, making it difficult to clean. There is an urgent need for an anti-clogging manhole cover to solve the aforementioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an anti-clogging manhole cover to solve the problems mentioned in the background technology. This utility model has a reasonable structure and good practicality. The adjustable cleaning component can clean the silt attached to the inner wall of the filter box, reducing the cleaning difficulty. At the same time, the plug-in limiting structure improves the stability of the filter box when it is placed and makes disassembly convenient.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an anti-clogging manhole cover, comprising a cover body, an L-shaped plate, a filter box, and a trapezoidal plate. First magnetic plates are respectively installed at the lower left and right ends of the cover body. A side plate is fixedly connected to the middle of the right side of the vertical end of the L-shaped plate. A positioning rod is slidably installed above the side plate. A magnetic column is fixedly connected to the lower end of the positioning rod. A second magnetic plate is fixedly connected to the upper end of the positioning rod. A spring sleeved on the outside of the positioning rod is fixedly connected to the lower end of the second magnetic plate. A handle plate is fixedly connected to the middle of the upper part of the trapezoidal plate via a support column. Multiple bristles are respectively provided on the left, right, and lower sides of the trapezoidal plate. Guide grooves are respectively provided at the upper left and right ends of the filter box. Insertion holes are respectively provided through the middle of the upper left and right ends of the filter box.

[0006] Furthermore, a circular groove is provided in the middle of the upper part of the horizontal end of the L-shaped plate, and a magnetic block with opposite magnetism to the magnetic column is provided on the bottom surface of the circular groove.

[0007] Furthermore, the lower end of the spring is fixedly connected to the side plate, the magnetism of the second magnetic sheet is opposite to that of the first magnetic sheet, and a lever is fixedly connected to the front end of the second magnetic sheet.

[0008] Furthermore, there are two L-shaped plates, with the vertical ends of the two L-shaped plates fixed to the left and right ends below the cover body, respectively.

[0009] Furthermore, the cover has multiple drainage holes on its upper part, and a rectangular groove is provided in the middle of the upper part of the cover, with a lifting handle rotatably installed inside the rectangular groove.

[0010] Furthermore, the protruding ends on the left and right sides below the handle plate are slidably installed in two guide grooves respectively.

[0011] The beneficial effects of this utility model are as follows: This utility model provides an anti-clogging manhole cover. Because it adds a cover body, a lifting handle, an L-shaped plate, a filter box, a first magnetic sheet, a lever plate, a second magnetic sheet, a side plate, a spring, a positioning rod, a magnetic column, a trapezoidal plate, and a handle plate, our design improvements and actual use have shown that this device has a reasonable structure and good practicality. The adjustable cleaning component can clean the silt attached to the inner wall of the filter box, reducing the difficulty of cleaning. At the same time, the plug-in limiting structure improves the stability of the filter box when it is placed and makes disassembly convenient. Attached Figure Description

[0012] 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:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an anti-clogging manhole cover according to the present invention;

[0014] Figure 2 This is a three-dimensional schematic diagram of the cover structure of an anti-clogging manhole cover according to the present invention;

[0015] Figure 3 This is a three-dimensional schematic diagram of an L-shaped plate structure for an anti-clogging manhole cover according to the present invention;

[0016] Figure 4 This is a three-dimensional schematic diagram of the filter box structure of an anti-clogging manhole cover according to the present invention;

[0017] Figure 5 This is a three-dimensional schematic diagram of the handle plate structure of an anti-clogging manhole cover according to the present invention.

[0018] In the diagram: 1-cover, 2-drain hole, 3-rectangular groove, 4-lifting handle, 5-L-shaped plate, 6-filter box, 7-first magnetic plate, 8-paddle plate, 9-second magnetic plate, 10-side plate, 11-spring, 12-positioning rod, 13-circular groove, 14-magnetic column, 15-trapezoidal plate, 16-guide groove, 17-insertion hole, 18-handle plate. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-5 This utility model provides a technical solution: an anti-clogging manhole cover, including a cover body 1, an L-shaped plate 5, a filter box 6, and a trapezoidal plate 15. First magnetic plates 7 are installed at the lower left and right ends of the cover body 1. A side plate 10 is fixedly connected to the middle right side of the vertical end of the L-shaped plate 5. A positioning rod 12 is slidably installed above the side plate 10. A magnetic column 14 is fixedly connected to the lower end of the positioning rod 12. A second magnetic plate 9 is fixedly connected to the upper end of the positioning rod 12. A spring 11 sleeved on the outside of the positioning rod 12 is fixedly connected to the lower end of the second magnetic plate 9. A handle plate 18 is fixedly connected to the middle upper part of the trapezoidal plate 15 via a support column. Multiple bristles are provided on the left, right, and lower sides of the trapezoidal plate 15. Guide grooves 16 are provided at the upper left and right ends of the filter box 6. Insertion holes 17 are provided through the middle of the upper left and right ends of the filter box 6. This design solves the problem that the inner wall of the filter box of the original device easily accumulates sludge during use, and most of the sludge remains on the inner wall of the filter box after the garbage is poured out, making it difficult to clean.

[0021] As the first embodiment of this utility model: A circular groove 13 is provided in the middle of the upper part of the horizontal end of the L-shaped plate 5. A magnetic block with the opposite magnetic properties to the magnetic column 14 is provided on the bottom surface of the circular groove 13. The design of the circular groove 13 provides a precise positioning and fixing point for the magnetic column 14, ensuring that the magnetic column 14 can be stably aligned and adsorbed in the circular groove 13. The magnetic properties of the magnetic block and the magnetic column 14 are opposite, which enhances the adsorption force, making the structure more stable and preventing loosening or displacement during use. The lower end of the spring 11 is fixed to the side plate 10. The magnetic properties of the second magnetic sheet 9 are opposite to those of the first magnetic sheet 7. A lever 8 is fixed to the front end of the second magnetic sheet 9. The fixed design of the spring 11 ensures that the positioning rod 12 can automatically reset after being pressed, improving the convenience of operation and the reliability of the structure. The magnetic properties of the second magnetic sheet 9 and the first magnetic sheet 7 are opposite, which allows the two to be tightly adsorbed, enhancing the fixing effect of the filter box 6. The design of the lever 8 facilitates manual operation by the user and improves the convenience of use. Two L-shaped plates 5 are provided, with their vertical ends fixed to the left and right ends of the cover body 1 below. Multiple drainage holes 2 are provided on the top of the cover body 1, and a rectangular groove 3 is located in the center of the top of the cover body 1. A lifting handle is rotatably installed inside the rectangular groove 3. The design of the drainage holes 2 ensures that rainwater or sewage can be quickly discharged, preventing water accumulation and blockage. The rotatable installation of the rectangular groove 3 and the lifting handle 4 makes opening and closing the manhole cover more convenient, saving manual operation time and improving practicality. The protruding ends on the left and right sides of the handle plate 18 are slidably installed in two guide grooves 16, which provide a precise sliding path for the handle plate 18, ensuring that the trapezoidal plate 15 can move smoothly and avoid jamming or displacement. This design allows the cleaning components to efficiently clean the sludge on the inner wall of the filter box 6, reducing the difficulty of cleaning.

[0022] As a second embodiment of this utility model: When it is necessary to remove the filter box 6, rotate the lifting handle 4 so that the lifting handle 4 rotates to a vertical position, and then pull the lifting handle 4 to lift the cover 1. Then, move the two levers 8 so that the two positioning rods 12 move upward. At this time, the two second magnetic pieces 9 move towards the two first magnetic pieces 7, and the two springs 11 are stretched. When the two second magnetic pieces 9 contact the two first magnetic pieces 7, the two second magnetic pieces 9 and the two first magnetic pieces 7 are magnetically attracted. At this time, the two positioning rods 12 drive the two magnetic pillars 14 to disengage from the two round grooves 13 and the two insertion holes 17. Under the magnetic attraction of the two second magnetic pieces 9 and the two first magnetic pieces 7, the two springs 11 will not return to their original position. Then, the filter box 6 can be removed, and the garbage inside can be poured out. Hold the handle plate 18 so that the trapezoidal plate 15 moves back and forth along the two guide grooves 16, thereby making the bristles on the side of the trapezoidal plate 15 clean and loosen the sludge attached to the inner wall of the filter box 6. Finally, the sludge can be poured out.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] 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 clog-resistant manhole cover, comprising a cover body (1), an L-shaped plate (5), a filter box (6), and a trapezoidal plate (15), characterized in that: The cover (1) has a first magnetic sheet (7) installed at the left and right ends respectively. The L-shaped plate (5) has a side plate (10) fixed to the middle of the right side of the vertical end. A positioning rod (12) is slidably installed above the side plate (10). A magnetic column (14) is fixed to the lower end of the positioning rod (12). A second magnetic sheet (9) is fixed to the upper end of the positioning rod (12). A spring (11) sleeved on the outside of the positioning rod (12) is fixed to the lower end of the second magnetic sheet (9). A handle plate (18) is fixed to the upper center of the trapezoidal plate (15) by a support column. Multiple bristles are provided on the left and right sides and the lower side of the trapezoidal plate (15). Guide grooves (16) are provided at the upper left and right ends of the filter box (6). Insertion holes (17) are provided through the middle of the upper left and right ends of the filter box (6).

2. A non-clogging manhole cover according to claim 1, wherein: The L-shaped plate (5) has a circular groove (13) in the middle of the upper part of the horizontal end, and the bottom surface of the circular groove (13) is provided with a magnetic block with the opposite magnetism to the magnetic column (14).

3. A non-clogging manhole cover according to claim 1, wherein: The lower end of the spring (11) is fixedly connected to the side plate (10), the magnetism of the second magnetic sheet (9) is opposite to that of the first magnetic sheet (7), and a dial plate (8) is fixedly connected to the front end of the second magnetic sheet (9).

4. A non-clogging manhole cover according to claim 1, wherein: Two L-shaped plates (5) are provided, and the vertical ends of the two L-shaped plates (5) are respectively fixed to the left and right ends below the cover (1).

5. A non-clogging manhole cover according to claim 1, wherein: The cover (1) has multiple drainage holes (2) on its upper part, and a rectangular groove (3) is provided in the middle of the upper part of the cover (1). A lifting handle (4) is rotatably installed inside the rectangular groove (3).

6. A non-clogging manhole cover according to claim 1, wherein: The protruding ends on the left and right sides below the handle plate (18) are slidably installed in the two guide grooves (16).