Anti-blocking municipal drainage well lid

Abstract

The utility model discloses an anti-clogging municipal drainage well lid, which relates to the technical field of drainage well lids, and comprises a well lid assembly, the well lid assembly is composed of a well lid main body, a grating top plate, an annular drainage groove and a spiral drainage filter cartridge; the downward track of the spiral drainage filter cartridge is a conical spiral line track and is used for improving the impact force of rainwater on impurities adhered to the inner cavity of the spiral drainage filter cartridge. According to the utility model, by arranging the spiral drainage filter cartridge in the conical spiral shape, most rainwater is drained through the filter holes in the spiral drainage filter cartridge, and a small part of rainwater flows downwards along the inner wall of the spiral drainage filter cartridge in the conical spiral track, so that residual impurities can be impacted, and the inner wall of the spiral drainage filter cartridge can be cleaned; meanwhile, original impurities in the water flow can synchronously flow downwards and are finally all collected in the collecting filter cartridge, so that the blockage condition can be effectively avoided, and the efficient drainage effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage manhole covers, in particular to an anti-clogging municipal drainage manhole cover. Background Art

[0002] A manhole cover is a cover used to cover the opening of a drainage manhole. It can prevent people or objects from falling into the manhole and ensure the safety of pedestrians and vehicles.

[0003] When the existing drainage manhole covers are in use, the drainage holes are often blocked by fallen leaves, resulting in water accumulation on the road surface, which in turn affects urban traffic. In order to further improve the anti-blocking performance of the drainage manhole covers, an anti-blocking municipal drainage manhole cover is provided. Summary of the invention

[0004] The purpose of the utility model is to provide a municipal drainage manhole cover which is anti-clogging in order to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-clogging municipal drainage manhole cover, comprising a manhole cover assembly, wherein the manhole cover assembly is composed of a manhole cover body, a grille top plate, an annular drainage groove, and a spiral drainage filter cartridge;

[0006] The grille top plate is fixed to the top of the manhole cover body, the annular drainage groove is formed on the top of the manhole cover body, the spiral drainage filter cartridge is fixed to the bottom of the manhole cover body, the upper and lower ends of the spiral drainage filter cartridge are open structures, and the top opening of the spiral drainage filter cartridge is connected to the inner cavity of the annular drainage groove;

[0007] The side walls of the spiral drainage filter cartridge are formed with filter holes for rainwater to pass through, and the rainwater flows into the drainage well through the channel composed of the grid top plate, the annular drainage groove, the inner cavity of the spiral drainage filter cartridge, and the filter holes;

[0008] The downward trajectory of the spiral drainage filter cartridge is a conical spiral trajectory, which is used to increase the impact force of rainwater on impurities adhering to the inner cavity of the spiral drainage filter cartridge;

[0009] A collecting component is also provided inside the drainage well, and the collecting component is used to collect impurities.

[0010] As a further solution of the utility model: the collection assembly includes a collection filter cartridge, a hanging ring, a support frame, and a positioning groove;

[0011] The positioning groove is pre-buried and fixed inside the drainage well, and the support frame is formed on the top of the positioning groove, and the support frame is used to provide positioning for the collection filter cartridge;

[0012] The hanging ring is fixed to the bottom of the collecting filter cartridge and protrudes to the top of the collecting filter cartridge. The collecting filter cartridge is distributed below the spiral drainage filter cartridge and is used to collect impurities falling from the inside of the spiral drainage filter cartridge. The hanging ring is used to lift the collecting filter cartridge.

[0013] As a further solution of the utility model: when the collecting filter cartridge is placed inside the positioning groove, the top horizontal height of the hanging ring is flush with the bottom horizontal height of the manhole cover body.

[0014] As a further solution of the utility model: a plurality of spiral drainage filter cartridges are provided, and the plurality of spiral drainage filter cartridges are evenly distributed in a circle at the bottom end of the manhole cover body.

[0015] As a further solution of the utility model: the outer diameter of the distribution track of the bottom ends of the plurality of spiral drainage filter cartridges is smaller than the inner diameter of the collecting filter cartridge, and the outer diameter of the collecting filter cartridge is smaller than the inner diameter of the drainage well.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] By setting a spiral drainage filter cartridge in a conical spiral shape, most of the rainwater can be discharged through the filter holes on the spiral drainage filter cartridge, and a small part of the rainwater flows downward in a conical spiral trajectory along the inner wall of the spiral drainage filter cartridge. This can impact the residual impurities and clean the inner wall of the spiral drainage filter cartridge. At the same time, the original impurities in the water flow will also flow downward synchronously and are finally collected inside the collection filter cartridge, which can effectively avoid blockage and achieve efficient drainage effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the disassembly of the manhole cover assembly and the collection assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the disassembly of the manhole cover assembly of the utility model;

[0021] Figure 4 It is a bottom view of the bottom structure of the manhole cover assembly of the utility model.

[0022] In the figure: 1. Manhole cover assembly; 101. Manhole cover body; 102. Grille top plate; 103. Annular drainage trough; 104. Spiral drainage filter cartridge; 2. Collection assembly; 201. Collection filter cartridge; 202. Lifting ring; 203. Support frame; 204. Positioning groove; 3. Drainage well. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 4 In the embodiment of the utility model, an anti-clogging municipal drainage manhole cover includes a manhole cover assembly 1, which is composed of a manhole cover body 101, a grille top plate 102, an annular drainage groove 103, and a spiral drainage filter cartridge 104;

[0025] The grille top plate 102 is fixed to the top of the manhole cover body 101, the annular drainage groove 103 is formed on the top of the manhole cover body 101, the spiral drainage filter cartridge 104 is fixed to the bottom of the manhole cover body 101, the upper and lower ends of the spiral drainage filter cartridge 104 are open structures, and the top opening of the spiral drainage filter cartridge 104 is connected to the inner cavity of the annular drainage groove 103;

[0026] The side walls of the spiral drainage filter cartridge 104 are formed with filter holes for rainwater to pass through. The rainwater flows into the drainage well 3 through the channel composed of the grid top plate 102, the annular drainage groove 103, the inner cavity of the spiral drainage filter cartridge 104, and the filter holes;

[0027] The downward trajectory of the spiral drainage filter cartridge 104 is a conical spiral trajectory, which is used to increase the impact force of rainwater on impurities adhering to the inner cavity of the spiral drainage filter cartridge 104;

[0028] A collecting assembly 2 is also provided inside the drainage well 3, and the collecting assembly 2 is used to collect impurities;

[0029] The collecting assembly 2 includes a collecting filter cartridge 201, a hanging ring 202, a supporting frame 203, and a positioning groove 204;

[0030] The positioning groove 204 is pre-buried and fixed inside the drainage well 3, and the support frame 203 is formed on the top of the positioning groove 204. The support frame 203 is used to provide positioning for the collection filter cartridge 201;

[0031] The lifting ring 202 is fixed to the inner bottom of the collecting filter cartridge 201 and protrudes to the top of the collecting filter cartridge 201. The collecting filter cartridge 201 is distributed below the spiral drainage filter cartridge 104 and is used to collect impurities falling from the inner side of the spiral drainage filter cartridge 104. The lifting ring 202 is used to lift the collecting filter cartridge 201.

[0032] In this embodiment: when the well cover assembly 1 is used to cover the well opening of the drainage well 3, the collection filter cartridge 201 is first placed inside the drainage well 3, and the support frame 203 pre-buried inside the drainage well 3 can support the collection filter cartridge 201;

[0033] Then, the well cover assembly 1 is covered on the well mouth of the drainage well 3, and the spiral drainage filter cartridge 104 is located inside the drainage well 3;

[0034] When it rains, the water on the road will be discharged into the drainage well 3 through the gap of the grille top plate 102, the annular drainage groove 103, the inner cavity of the spiral drainage filter cartridge 104 and the filter holes. In this process, the grille top plate 102 will not intercept impurities in the water flow, and the spiral drainage filter cartridge 104 has the effect of intercepting impurities to prevent impurities from falling into the drainage well 3.

[0035] During the drainage process, there are several types of impurities inside the spiral drainage filter cartridge 104:

[0036] The first is that when the amount of rainwater is small, there is less rainwater inside the spiral drainage filter cartridge 104. At this time, most of the rainwater will be discharged through the filter holes, and impurities will adhere to the inner wall of the spiral drainage filter cartridge 104. In this case, the filter holes inside and outside the spiral drainage filter cartridge 104 and the long spiral channel can ensure the normal discharge of rainwater, and under the impact of continuous water flow, the impurities will slowly slide down along the inner wall track of the spiral drainage filter cartridge 104 and finally fall into the collection filter cartridge 201.

[0037] The second type is that when the amount of rainwater is large, the large flow of rainwater is divided into two parts, one part is discharged through the filter holes, and the other part flows downward along the inner wall trajectory of the spiral drainage filter cartridge 104 in a conical spiral trajectory, so that the impurities remaining before can be impacted, and the inner wall of the spiral drainage filter cartridge 104 can be cleaned. At the same time, the original impurities in the water flow will also flow downward synchronously, and finally all of them will be collected inside the collection filter cartridge 201. In the process of the water flow flowing downward along the inner wall trajectory of the spiral drainage filter cartridge 104, water is continuously discharged through the filter holes, and finally a part of the water flow falls into the collection filter cartridge 201 and is discharged through the filter holes on the collection filter cartridge 201;

[0038] Through the coordination of the above multiple parts, blockage can be effectively avoided and efficient drainage effect can be achieved.

[0039] Please refer to Figures 1 to 4 When the collecting filter cartridge 201 is placed inside the positioning groove 204, the top level of the hanging ring 202 is flush with the bottom level of the manhole cover body 101;

[0040] There are multiple spiral drainage filter cartridges 104, and the multiple spiral drainage filter cartridges 104 are evenly distributed at the bottom of the manhole cover body 101 in a circular shape;

[0041] The outer diameter of the distribution track at the bottom of the plurality of spiral drainage filter cartridges 104 is smaller than the inner diameter of the collection filter cartridge 201 , and the outer diameter of the collection filter cartridge 201 is smaller than the inner diameter of the drainage well 3 .

[0042] In this embodiment: if the manhole cover body 101 cannot be completely moved down to cover the wellhead of the drainage well 3 when covering, it means that the lifting ring 202 is highly protruding, that is, the collection filter cartridge 201 is not completely placed in the inner side of the positioning groove 204; if the manhole cover body 101 can be completely covered, it means that the collection filter cartridge 201 is completely placed in the inner side of the positioning groove 204, thereby determining the placement status of the collection filter cartridge 201;

[0043] The collection filter cartridge 201 can be positioned and placed by the positioning groove 204, thereby ensuring the alignment operation between the collection filter cartridge 201 and the bottom ends of the plurality of spiral drainage filter cartridges 104;

[0044] Through the conical contraction structure of the spiral drainage filter cartridge 104 and the structure in which the outer diameter of the collection filter cartridge 201 is smaller than the inner diameter of the drainage well 3, most of the rainwater does not need to pass through the interior of the collection filter cartridge 201. That is, when a large amount of impurities are collected inside the collection filter cartridge 201, good and efficient drainage efficiency can still be maintained.

[0045] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A municipal drainage manhole cover that prevents clogging, comprising a manhole cover assembly (1), characterized in that: The manhole cover assembly (1) is composed of a manhole cover body (101), a grille top plate (102), an annular drainage groove (103), and a spiral drainage filter cartridge (104); The grille top plate (102) is fixed to the top of the manhole cover body (101), the annular drainage groove (103) is formed on the top of the manhole cover body (101), the spiral drainage filter cartridge (104) is fixed to the bottom of the manhole cover body (101), the upper and lower ends of the spiral drainage filter cartridge (104) are open structures, and the top opening of the spiral drainage filter cartridge (104) is in communication with the inner cavity of the annular drainage groove (103); The side walls of the spiral drainage filter cartridge (104) are both formed with filter holes for rainwater to pass through, and the rainwater flows into the drainage well (3) through a channel formed by the grid top plate (102), the annular drainage groove (103), the inner cavity of the spiral drainage filter cartridge (104), and the filter holes; The downward trajectory of the spiral drainage filter cartridge (104) is a conical spiral trajectory, which is used to increase the impact force of rainwater on impurities adhering to the inner cavity of the spiral drainage filter cartridge (104); A collecting component (2) is also provided inside the drainage well (3), and the collecting component (2) is used to collect impurities.

2. The anti-clogging municipal drainage manhole cover according to claim 1, characterized in that: The collecting assembly (2) comprises a collecting filter cartridge (201), a hanging ring (202), a supporting frame (203), and a positioning groove (204); The positioning groove (204) is pre-buried and fixed inside the drainage well (3); the support frame (203) is formed on the top of the positioning groove (204); the support frame (203) is used to provide positioning for the collection filter cartridge (201); The lifting ring (202) is fixed to the inner bottom of the collecting filter cartridge (201) and protrudes to the top of the collecting filter cartridge (201); the collecting filter cartridge (201) is arranged below the spiral drainage filter cartridge (104) and is used to collect impurities falling from the inner side of the spiral drainage filter cartridge (104); the lifting ring (202) is used to lift the collecting filter cartridge (201).

3. The anti-clogging municipal drainage manhole cover according to claim 2, characterized in that: When the collecting filter cartridge (201) is placed inside the positioning groove (204), the top level of the hanging ring (202) is flush with the bottom level of the manhole cover body (101).

4. The anti-clogging municipal drainage manhole cover according to claim 2, characterized in that: A plurality of the spiral drainage filter cartridges (104) are provided, and the plurality of the spiral drainage filter cartridges (104) are evenly distributed in a circular pattern at the bottom end of the manhole cover body (101).

5. The anti-clogging municipal drainage manhole cover according to claim 4, characterized in that: The outer diameter of the distribution track at the bottom end of the plurality of spiral drainage filter cartridges (104) is smaller than the inner diameter of the collection filter cartridge (201), and the outer diameter of the collection filter cartridge (201) is smaller than the inner diameter of the drainage well (3).

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