A gully trash grading protection device

Abstract

The utility model provides a rainwater inlet garbage grading protection device, including bottom storage spare, bottom filter spare and filter unit, bottom filter spare sets up in the bottom of bottom storage spare, filter unit is used for filtering rainwater and garbage, and filter unit is connected with bottom filter spare, the utility model has the advantages that one -level filter spare and lateral auxiliary filter spare are combined into a three -dimensional filter space, expand the filter area, and cooperate gravity to improve garbage accumulation efficiency, through the combination of one -level filter spare, two -level filter spare and bottom filter spare, realize layered multistage interception, further improve garbage interception efficiency and prevent the possibility of garbage blockage, through covering hydrophobic coating on each filter spare, because hydrophobic coating has very low surface energy, makes the intermolecular force between garbage particle and screen plate weaken obviously.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and in particular relates to a rainwater inlet garbage classification and protection device. Background Technology

[0002] When municipal roads undergo final construction, the installation of storm drain grates at the inlets is carried out simultaneously. Prefabricated iron storm drain grates are used to protect the inlets from debris, ensuring that leaves, pebbles, and solid plastic waste are effectively intercepted during the rainy season, thus guaranteeing smooth drainage. However, current storm drain debris protection methods face several technical challenges: traditional storm drain grates, primarily using a single-grid structure, can only block large debris (such as beverage bottles), failing to effectively intercept small particles like fine sand and leaves, leading to frequent pipe blockages; the narrow space of the storm drain chamber makes cleaning difficult after debris accumulates, requiring frequent manual opening of the grate, resulting in loosened and damaged bolts and low cleaning efficiency. These issues necessitate a tiered debris protection device and construction method for storm drains. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a rainwater inlet garbage classification and protection device, which is particularly suitable for blocking small-volume garbage in the protection of garbage at rainwater inlets.

[0004] The technical solution adopted by this utility model is as follows: Firstly, a rainwater inlet garbage classification and protection device is provided, comprising:

[0005] Bottom storage unit;

[0006] A bottom filter element is disposed at the bottom of the bottom collection element;

[0007] A filter unit for filtering rainwater and debris, the filter unit being connected to the bottom filter element.

[0008] Furthermore, the filtration unit includes a top support frame, at least two primary filter elements, and at least two lateral auxiliary filter elements. The top support frame is adapted to the top shape of the bottom storage component. One end of each primary filter element is connected to one end of another primary filter element, and the other end of all primary filter elements is connected to the lower end of the top support frame. The lateral auxiliary filter elements cover the gap formed by the top support frame and the primary filter elements.

[0009] Furthermore, the filtration gap of the bottom filter element is smaller than that of the primary filter element, and the filtration gap of the primary filter element is the same as that of the lateral auxiliary filter element.

[0010] Furthermore, the filtration unit also includes at least two secondary filter elements, one end of which is connected to one end of the primary filter element and the other end of which is connected to the end of the bottom filter element, and the filtration gaps of the primary filter element, the secondary filter element and the bottom filter element decrease sequentially.

[0011] Furthermore, the surfaces of the primary filter element, the secondary filter element, the lateral auxiliary filter element, and the bottom filter element are covered with a hydrophobic coating.

[0012] Furthermore, handles are provided at both ends of the top support frame.

[0013] The advantages and positive effects of this utility model are as follows: By adopting the above technical solution, the filtration area is expanded by combining the primary filter element and the lateral auxiliary filter element into a three-dimensional filtration space, and the efficiency of garbage accumulation is improved in conjunction with gravity; by combining the primary filter element, the secondary filter element and the bottom filter element, multi-level interception is achieved, which further improves the efficiency of garbage interception and prevents the possibility of garbage blockage; by covering each filter element with a hydrophobic coating, the intermolecular forces between garbage particles and the mesh plate are significantly weakened due to the extremely low surface energy of the hydrophobic coating. Attached Figure Description

[0014] Figure 1 This is a structural side view of a rainwater inlet waste grading and protection device according to an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the bottom storage element and the bottom filter element according to an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of a filter unit according to an embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of a filter unit according to another embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the top support frame and handle according to an embodiment of the present invention.

[0019] Figure 6 This is a schematic diagram of the structure of a rainwater inlet waste classification and protection device according to another embodiment of the present invention.

[0020] In the picture:

[0021] 10. Bottom collection component; 20. Bottom filter component; 30. Filter unit

[0022] 31. Top support frame; 32. Primary filter element; 33. Side auxiliary filter element

[0023] 34. Secondary filter element; 40. Handle Detailed Implementation

[0024] The present disclosure will now be described more fully with reference to the accompanying drawings, which illustrate exemplary embodiments of the present disclosure. The technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative effort are within the scope of protection of the present disclosure.

[0025] like Figure 1-2 As shown, this utility model provides a rainwater inlet garbage classification and protection device, including a bottom storage component 10, a bottom filter component 20 and a filter unit 30. The bottom filter component 20 is disposed at the bottom of the bottom storage component 10, and the filter unit 30 is used to filter rainwater and garbage. The filter unit 30 is connected to the bottom filter component 20.

[0026] Using the above-mentioned device, rainwater and garbage flowing into the rainwater inlet are filtered through the filtration unit, and the garbage is stored in the bottom collection unit, while the rainwater can pass through smoothly, preventing the rainwater inlet from becoming blocked.

[0027] To address the problem that traditional rainwater filtration devices, which primarily use planar grid structures, lose their drainage capacity when the surface of the grid structure is covered by debris, this embodiment provides an implementation method.

[0028] like Figure 3 As shown, in one embodiment, the filter unit 30 includes a top support frame 31, at least two primary filter elements 32, and at least two lateral auxiliary filter elements 33. The top support frame 31 is adapted to the top shape of the bottom storage unit 10. One end of the primary filter element 32 is connected to one end of another primary filter element 32, and the other end of all the primary filter elements 32 is connected to the lower end of the top support frame 31. The lateral auxiliary filter elements 33 cover the gap formed by the top support frame 31 and the primary filter elements 32.

[0029] Using the above-mentioned device, the primary filter element and the side auxiliary filter element are combined into a three-dimensional filter space, which expands the filter area and improves the efficiency of waste accumulation in conjunction with gravity.

[0030] To address the problem that traditional rainwater filtration devices, which rely primarily on a single grid structure, can only block large-volume debris and lack effective interception of small particles such as fine sand and leaves, leading to frequent pipe blockages, this embodiment provides an implementation method.

[0031] In one embodiment, the filtration gap of the bottom filter element 20 is smaller than the filtration gap of the primary filter element 32, and the filtration gap of the primary filter element 32 is the same as that of the lateral auxiliary filter element 33.

[0032] By using the above-mentioned device and setting different filter gaps for different filter components, the purpose of layered filtration can be achieved, thereby improving the efficiency of waste interception.

[0033] To address the issue of further improving filtration efficiency and solid waste loading capacity, this embodiment provides an implementation method.

[0034] like Figure 4 As shown, in one embodiment, the filter unit 30 further includes no less than two secondary filter elements 34. One end of the secondary filter element 34 is connected to one end of the primary filter element 32, and the other end is connected to the end of the bottom filter element 20. The filtration gaps of the primary filter element 32, the secondary filter element 34 and the bottom filter element 20 decrease sequentially.

[0035] Using the above-mentioned device, a combination of primary filter, secondary filter and bottom filter can achieve three-stage interception of coarse, medium and fine waste. Moreover, by setting up a secondary filter to isolate a new waste storage space, the waste interception efficiency is further improved and the possibility of waste blockage is prevented.

[0036] To address the issue of debris easily adhering to the filter screen during use, this embodiment provides an implementation method.

[0037] In one embodiment, the surfaces of the primary filter element 32, the secondary filter element 34, the lateral auxiliary filter element 33, and the bottom filter element 20 are covered with a hydrophobic coating.

[0038] Using the above device, the hydrophobic coating has extremely low surface energy, which significantly weakens the intermolecular forces between the garbage particles and the mesh, making it difficult to form a firm adhesion. When rainwater flows over the hydrophobic surface, it cannot wet the coating and will quickly gather into large water droplets and carry the garbage down, thus preventing the garbage from sticking together due to long-term immersion in water.

[0039] To address the issue of the cumbersome nature of mobile filtering devices, this embodiment provides an implementation method.

[0040] like Figure 5 As shown, in one embodiment, the top support frame 31 is provided with handles 40 at both ends.

[0041] By using the above-mentioned device, handles are installed at both ends of the top support frame, which improves the efficiency of handling the filter device and saves labor costs.

[0042] The following description, in conjunction with a preferred embodiment, illustrates the content involved in the above embodiments.

[0043] like Figure 6As shown, the bottom storage component 10 is a rectangular frame of 600mm×400mm×200mm welded from 304 stainless steel to fit the standard municipal storm drain grate opening size. The frame is welded and formed, with a 10mm flange reserved at the edge of the bottom plate. The bottom filter component 20 is a 316L stainless steel woven mesh with a mesh diameter of 3mm and a porosity of 50%. It is suspended 50mm below the bottom plate by M8 stainless steel nuts and adjusting bolts. The filter gap is adjustable, forming an adjustable waste storage space. The filter unit 30 consists of a top support frame 31, a primary filter component 32, a side auxiliary filter component 33, and a secondary filter component 34. The top support frame 31 is made of 6061 aluminum alloy frame, with lifting handles 40 with rubber anti-slip sleeves welded to both ends. Two P-type filters are also present. The primary filter element 32, made of polypropylene, nylon, or stainless steel, has a pore size of 15mm and is symmetrically welded at a 45° angle to the bottom of the top support frame 31 to form an inverted V-shape. The secondary filter element 34 is a corrugated filter screen made of PP polypropylene, nylon, or stainless steel with a pore size of 8mm. The primary filter element 32 and the secondary filter element 34 are connected by a long oval rod with a bolt and matching nut at one end. The lateral auxiliary filter element 33 is a perforated triangular plate made of PP polypropylene, nylon, or stainless steel with a pore size of 15mm. It is riveted to the side of the primary filter element 32 to fill the gap. The secondary filter element 34 is connected to the bottom filter element 20 by bolts. After degreasing and cleaning, the surface of all filter elements is sprayed with a 50μm polytetrafluoroethylene hydrophobic coating. When it rains, rainwater carrying debris passes sequentially through the primary filter 32 and the side auxiliary filter 33 (mainly used to intercept large-volume debris such as leaves and plastic bags), the secondary filter 34 (mainly used to intercept medium-volume debris such as pebbles and chips), and the bottom filter 20 (mainly used to intercept small-volume debris such as sand). The hydrophobic coating on the surface of each filter promotes rapid water flow, and the attached debris is washed away and collected in the bottom storage container. After each rainfall, the device is removed by pulling up the handle 40, and the bottom storage container 10 is rinsed. In case of severe weather such as heavy rain, the device is cleaned as needed by monitoring the water level in the well chamber in real time.

[0044] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A rainwater inlet waste classification and protection device, characterized in that, include: Bottom storage unit; A bottom filter element is disposed at the bottom of the bottom collection element; A filter unit for filtering rainwater and debris, the filter unit being connected to the bottom filter element; The filtration unit includes a top support frame, at least two primary filters, and at least two lateral auxiliary filters. The top support frame is adapted to the top shape of the bottom storage unit. One end of each primary filter is connected to one end of another primary filter, and the other ends of all primary filters are connected to the lower end of the top support frame. The lateral auxiliary filters cover the gap formed by the top support frame and the primary filters.

2. The rainwater inlet waste classification and protection device according to claim 1, characterized in that: The filtration gap of the bottom filter element is smaller than that of the primary filter element, and the filtration gap of the primary filter element is the same as that of the lateral auxiliary filter element.

3. The rainwater inlet waste classification and protection device according to claim 2, characterized in that: The filtration unit further includes at least two secondary filter elements, one end of which is connected to one end of the primary filter element and the other end of which is connected to the end of the bottom filter element. The filtration gaps of the primary filter element, the secondary filter element, and the bottom filter element decrease sequentially.

4. The rainwater inlet waste classification and protection device according to claim 3, characterized in that: The surfaces of the primary filter element, the secondary filter element, the lateral auxiliary filter element, and the bottom filter element are covered with a hydrophobic coating.

5. The rainwater inlet waste classification and protection device according to any one of claims 2-4, characterized in that: The top support frame is equipped with handles at both ends.

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