Sponge city rainwater filtering device

Abstract

The utility model discloses a sponge city rainwater filtering device which comprises a filtering groove and a filtering screen, the filtering screen is arranged on the top face of the filtering groove, and the filtering screen and the filtering groove form a detachable connecting structure through a dismounting and mounting mechanism. The filter material layer is movably mounted in the filter tank; the partition plate is mounted at the bottom of the filter tank; and the water outlet hole is formed in the partition plate in a penetrating manner. According to the sponge city rainwater filtering device, impurities which are not dissolved in rainwater and are large in size are preliminarily filtered through the filter screen, the remaining rainwater is filtered through the filtering material layer, and harmful substances such as grease and volatile organic compounds in the rainwater can be effectively removed; it is ensured that the rainwater can reach the high environment-friendly emission standard after being filtered, pollution of the rainwater to urban drainage is reduced, it is ensured that cities have good elasticity in the aspects of adapting to environment changes, coping with natural disasters caused by the rainwater and the like, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of rainwater filtering devices, in particular to a rainwater filtering device for sponge cities. Background Technique

[0002] With the development of urbanization and the improvement of urban infrastructure construction, the hardening coverage rate of urban roads is getting higher and higher. During the construction of urban hardened roads, drainage channels need to be built to discharge rainwater. A filtering device is set in the through groove to filter the rainwater during the discharge process;

[0003] However, when the existing rainwater filtering devices are in use, most of them can only filter and screen out the solid impurities mixed in the rainwater, and cannot effectively filter pollution sources such as oils, volatile organic compounds, and peculiar smells. As a result, the rainwater after filtration is still polluted, which causes pollution to the city and is not conducive to the city's adaptation to rainwater pollution. In view of this, a rainwater filtering device for sponge cities is proposed to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a rainwater filtering device for sponge cities to solve the problem that most of the existing rainwater filtering devices can only filter and screen out the solid impurities mixed in the rainwater, and cannot effectively filter pollution sources such as oils, volatile organic compounds, and peculiar smells as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A rainwater filtering device for sponge cities, including a filtering tank,

[0006] A filter screen, the filter screen is arranged on the top surface of the filtering tank, and the filter screen and the filtering tank form a detachable connection structure through a disassembly and assembly mechanism;

[0007] A filtering material layer, the filtering material layer is movably installed inside the filtering tank;

[0008] A partition board, the partition board is installed at the bottom of the filtering tank;

[0009] Water outlet holes, the water outlet holes are through-opened on the partition board.

[0010] Adopting the above technical scheme is convenient for ensuring the effective filtration of rainwater and reducing the pollution of rainwater to urban drainage.

[0011] As a preferred technical scheme of the utility model, the filtering tank includes side plates, a bottom plate and a fastening plate. There are two side plates symmetrically arranged. The lower end of the inner side surface of the side plate is fixedly installed with the bottom plate, and the partition board is fixedly and throughly arranged through the bottom plate. The upper end of the outer side surface of the side plate is fixedly installed with the fastening plate.

[0012] Adopting the above technical solution facilitates ensuring that rainwater is collected through the filter tank.

[0013] As a preferred technical solution of the present utility model, the filter tank is arranged in a trapezoidal structure, and the opening of the filter tank is arranged in a structure with a wider upper part and a narrower lower part.

[0014] Adopting the above technical solution facilitates the discharge of rainwater through the filter tank.

[0015] As a preferred technical solution of the present utility model, the filter screen is a steel grate-like structure.

[0016] Adopting the above technical solution facilitates improving the service life of the filter screen and ensuring the use effect.

[0017] As a preferred technical solution of the present utility model, the filter material layer includes a sponge layer, a gravel layer, an activated carbon layer, and an asphalt layer. The gravel layer is arranged on the top of the sponge layer, the activated carbon layer is arranged on the top of the gravel layer, and the asphalt layer is arranged on the top of the activated carbon layer.

[0018] Adopting the above technical solution facilitates filtering out pollution sources such as oils and fats, volatile organic compounds, and odors in rainwater.

[0019] As a preferred technical solution of the present utility model, the water outlet holes are evenly arranged on the partition plate, and the aperture of the water outlet holes is less than one centimeter.

[0020] Adopting the above technical solution facilitates ensuring the effective discharge of filtered rainwater.

[0021] As a preferred technical solution of the present utility model, the disassembly and assembly mechanism includes:

[0022] Positioning cylinders, the positioning cylinders arranged in pairs symmetrically are fixedly installed on the bottom surface of the filter screen;

[0023] Positioning holes, the positioning holes are penetrated and opened on the connecting plate, and the positioning cylinders are in conformity with the positioning holes;

[0024] A bidirectional lead screw, the bottom end of the bidirectional lead screw is in bearing connection with the inner bottom surface of the positioning cylinder, and the bidirectional lead screw penetrates through the filter screen in a bearing manner;

[0025] A knob, the knob is fixedly installed on the top end of the bidirectional lead screw;

[0026] Moving blocks, the symmetrically arranged moving blocks are sleeved on the outer side of the bidirectional lead screw, and the bidirectional lead screw is in threaded connection with the moving blocks;

[0027] Connecting rods, one end of the connecting rod is rotatably connected with the moving block;

[0028] A connecting block, which is rotatably connected to the other end of the connecting rod;

[0029] A locking rod, which is fixedly installed on the side surface of the connecting block, and the locking rod slidably penetrates through the side wall of the positioning cylinder;

[0030] A locking groove, which is opened on one side of the positioning hole, and the locking rod is fitted with the locking groove.

[0031] Adopting the above technical solution is convenient for ensuring the disassembly and assembly of the water filtering net.

[0032] Compared with the prior art, the beneficial effects of the present utility model are as follows: The sponge city rainwater filtering device preliminarily filters sundries that are insoluble in rainwater and have a large volume through a filter screen, and the remaining rainwater is filtered through a filtering material layer, which can effectively remove harmful substances such as grease and volatile organic compounds in the rainwater, ensure that the rainwater can meet higher environmental protection discharge standards after filtration, reduce the pollution of rainwater to urban drainage, and ensure that the city has good elasticity in adapting to environmental changes and coping with natural disasters brought by rainwater, with strong practicability. Description of the Drawings

[0033] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0034] Figure 2 is a three-dimensional connection structural schematic diagram of the partition board and the bottom board of the present utility model;

[0035] Figure 3 is a front view sectional structural schematic diagram of the present utility model;

[0036] Figure 4 is of the present utility model Figure 3 and is an enlarged structural schematic diagram at A in the figure.

[0037] In the figure: 1, filtering tank; 101, side plate; 102, bottom plate; 103, bridging plate; 2, filter screen; 3, filtering material layer; 301, sponge layer; 302, gravel layer; 303, activated carbon layer; 304, asphalt layer; 4, partition board; 5, water outlet hole; 6, positioning cylinder; 7, positioning hole; 8, bidirectional lead screw; 9, knob; 10, moving block; 11, connecting rod; 12, connecting block; 13, locking rod; 14, locking groove. Detailed Embodiments

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0039] Please refer to Figures 1-4 , the technical solution of the present utility model: a rainwater filtering device for a sponge city, including a filtering tank 1, a filter screen 2 is arranged on the top surface of the filtering tank 1, and the filter screen 2 and the filtering tank 1 are detachably connected by a disassembly and assembly mechanism, a filtering material layer 3 is movably installed inside the filtering tank 1, a partition plate 4 is installed at the bottom of the filtering tank 1, and a water outlet hole 5 is opened through the partition plate 4;

[0040] The filtering tank 1 includes side plates 101, a bottom plate 102 and a connecting plate 103. There are two symmetrically arranged side plates 101, and the lower end of the inner side surface of the side plate 101 is fixedly installed with the bottom plate 102, and the partition plate 4 is fixedly arranged through the bottom plate 102. The upper end of the outer side surface of the side plate 101 is fixedly installed with the connecting plate 103. The filtering tank 1 is arranged in a trapezoidal structure, and the opening of the filtering tank 1 is arranged in a structure with a wider upper part and a narrower lower part;

[0041] The filter screen 2 is a steel grid structure;

[0042] The filtering material layer 3 includes a sponge layer 301, a gravel layer 302, an activated carbon layer 303 and an asphalt layer 304. The gravel layer 302 is arranged on the top of the sponge layer 301, the activated carbon layer 303 is arranged on the top of the gravel layer 302, and the asphalt layer 304 is arranged on the top of the activated carbon layer 303;

[0043] The water outlet holes 5 are evenly arranged on the partition plate 4, and the aperture of the water outlet holes 5 is less than one centimeter;

[0044] Two symmetrically arranged positioning cylinders 6 are fixedly installed on the bottom surface of the filter screen 2. A positioning hole 7 is opened through the connecting plate 103, and the positioning cylinder 6 coincides with the positioning hole 7. The bottom end of the bidirectional lead screw 8 is connected to the inner bottom surface of the positioning cylinder 6 by a bearing, and the bidirectional lead screw 8 passes through the filter screen 2 by a bearing. A knob 9 is fixedly installed at the top end of the bidirectional lead screw 8. Symmetrically arranged moving blocks 10 are sleeved on the outer side of the bidirectional lead screw 8, and the bidirectional lead screw 8 is threadedly connected to the moving blocks 10. One end of a connecting rod 11 is rotatably connected to the moving block 10, and a connecting block 12 is rotatably connected to the other end of the connecting rod 11. A locking rod 13 is fixedly installed on the side surface of the connecting block 12, and the locking rod 13 slidably penetrates through the side wall of the positioning cylinder 6. A locking groove 14 is opened on one side of the positioning hole 7, and the locking rod 13 coincides with the locking groove 14.

[0045] Working principle: When in use, the filter tank 1 is installed on the drainage channels of the roadbeds on both sides of the urban road through the bridging plate 103. The filter screen 2 is placed on the top surface of the filter tank 1 through the positioning cylinder 6 and the positioning hole 7, and the two-way lead screw 8 is rotated by rotating the knob 9, so that the two moving blocks 10 move towards each other. Thus, through the action of the connecting rod 11, the connecting block 12 drives the locking rod 13 to move outwards. When the locking rod 13 extends into the locking groove 14, the installation and fixation of the filter screen 2 and the filter tank 1 are realized;

[0046] In rainy weather, rainwater will flow into the filter tank 1 and is first preliminarily filtered through the filter screen 2 to remove large-volume water-insoluble sundries such as branches and fallen leaves that may be mixed in the rainwater;

[0047] Subsequently, the rainwater will be filtered through the filter material layer 3. First, it enters the activated carbon layer 303 through the asphalt layer 304 for re-filtration to filter the oil stains and volatile organic compounds dissolved in the rainwater. The rainwater passes through the gravel layer 302 and the sponge layer 301 for detailed filtration, and finally the rainwater filtered from the sponge layer 301 is discharged through the water outlet holes 5 on the partition plate 4;

[0048] When cleaning is required, the two-way lead screw 8 is rotated in the reverse direction by rotating the knob 9 in the reverse direction, so that the two moving blocks 10 move away from each other. Thus, through the connecting rod 11, the connecting block 12 drives the locking rod 13 to move inwards. After the locking rod 13 moves out of the locking groove 14, the filter screen 2 can be disassembled and cleaned. At the same time, the filter material layer 3 can be taken out for maintenance or replacement. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sponge city rainwater filtration device, comprising a filter tank (1), characterized in that: Also includes: A filter screen (2), wherein the filter screen (2) is arranged on the top surface of the filter tank (1), and the filter screen (2) and the filter tank (1) form a detachable connection structure through a disassembly mechanism; A filter material layer (3), the filter material layer (3) being movably mounted inside the filter tank (1); A partition (4), wherein the partition (4) is installed at the bottom of the filter tank (1); A water outlet hole (5), the water outlet hole (5) is formed through the partition plate (4); The filter material layer (3) comprises a sponge layer (301), a gravel layer (302), an activated carbon layer (303) and an asphalt layer (304), wherein the gravel layer (302) is arranged on the top of the sponge layer (301), the activated carbon layer (303) is arranged on the top of the gravel layer (302), and the asphalt layer (304) is arranged on the top of the activated carbon layer (303).

2. A sponge city rainwater filtration device according to claim 1, characterized in that: The filter tank (1) comprises a side plate (101), a bottom plate (102) and a strap plate (103), wherein two side plates (101) are symmetrically arranged, and the bottom plate (102) is fixedly mounted on the lower end of the inner side surface of the side plate (101), and the partition plate (4) is fixedly arranged to pass through the bottom plate (102), and the strap plate (103) is fixedly mounted on the upper end of the outer side surface of the side plate (101).

3. A sponge city rainwater filtration device according to claim 1, characterized in that: The filter tank (1) is arranged in a trapezoidal structure, and the opening of the filter tank (1) is arranged in a structure that is wide at the top and narrow at the bottom.

4. A sponge city rainwater filtration device according to claim 1, characterized in that: The filter screen (2) is a steel grate mesh structure.

5. A sponge city rainwater filtration device according to claim 1, characterized in that: The water outlet holes (5) are evenly arranged on the partition (4), and the hole diameter of the water outlet holes (5) is less than one centimeter.

6. A sponge city rainwater filtration device according to claim 2, characterized in that: The disassembly and assembly mechanism comprises: Positioning cylinders (6), the positioning cylinders (6) being symmetrically arranged in pairs and fixedly mounted on the bottom surface of the filter screen (2); A positioning hole (7), the positioning hole (7) is formed through the strap (103), and the positioning tube (6) is matched with the positioning hole (7); A bidirectional screw rod (8), the bottom end of which is connected to the inner bottom surface bearing of the positioning cylinder (6), and the bearing of the bidirectional screw rod (8) is arranged to penetrate the filter screen (2); A knob (9), wherein the knob (9) is fixedly mounted on the top end of the bidirectional screw rod (8); A moving block (10), wherein the moving block (10) is symmetrically arranged and sleeved on the outer side of the bidirectional screw rod (8), and the bidirectional screw rod (8) is threadedly connected to the moving block (10); A connecting rod (11), one end of which is rotatably connected to the moving block (10); A connecting block (12), the connecting block (12) being rotatably connected to the other end of the connecting rod (11); A locking rod (13), wherein the locking rod (13) is fixedly mounted on a side surface of the connecting block (12), and the locking rod (13) is slidably disposed through a side wall of the positioning cylinder (6); A locking groove (14), wherein the locking groove (14) is provided on one side of the positioning hole (7), and the locking rod (13) is matched with the locking groove (14).

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