Drainage device for sponge city

Abstract

The utility model discloses a drainage device for a sponge city, which relates to the technical field of drainage of sponge cities and comprises a drainage tank, and a bottom groove is arranged in the middle of the inner bottom wall of the drainage tank. According to the drainage device for the sponge city, the grating plate is arranged, impurities in accumulated water can be better blocked in the using process, the filter plate is arranged, the impurities in water can be better filtered for the second time, the water can be filtered again through the U-shaped filter net, and therefore the water drainage effect is improved. When the accumulated water amount is too large, the water flow is increased, and the pressure on the U-shaped filter screen is increased, so that the connecting frame and the U-shaped filter screen are pressed to move downwards under the guidance of the guide column and the guide hole, the spring is pressed to contract, and when the connecting frame moves downwards, the water guide groove on the inner side of the drainage box is exposed; therefore, the water body can be guided out more quickly, and the discharging effect can be well guaranteed when the water body is too large.

Description

Technical Field

[0001] The utility model relates to the technical field of sponge city drainage, in particular to a drainage device used in a sponge city. Background Art

[0002] The sponge city drainage system is a new type of urban drainage system with functions such as water absorption, water storage, water purification, and water infiltration. By collecting rainwater and diverting it to a reservoir or underground aquifer, the water in the reservoir will be released when water is needed to promote the recycling of water resources. Such a design can effectively reduce flood disasters within the city and improve the efficiency of water resource utilization.

[0003] When using the sponge city drainage device, impurities in the water body are cleaned through the filter. However, during the flood season, the rain is heavy. During the drainage process, the filter accumulates debris, which will affect the timely discharge of rainwater, easily causing urban flooding and rainwater collection, and the drainage effect is poor. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a drainage device for a sponge city, which solves the problem of poor drainage effect of the drainage device.

[0006] (II) Technical solution

[0007] In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions: a drainage device for sponge cities, comprising a drainage box, a bottom groove is opened in the middle of the inner bottom wall of the drainage box, drainage grooves are opened on both sides of the inner bottom wall of the drainage box, and the bottom groove and the two drainage grooves are connected by a connecting groove.

[0008] Two placement slots 1 and two placement slots 2 are respectively provided on the upper part of the interior of the drainage box, a fixing frame is placed between the two placement slots 2, a filter plate is fixedly installed on the bottom of the fixing frame, guide columns are fixedly installed at the four corners of the filter plate, a connecting frame is placed under the filter plate, a U-shaped filter screen is fixedly installed on the bottom of the connecting frame, guide holes are provided at the four corners of the connecting frame, and the bottom end of each guide column respectively passes through the four guide holes and extends to the bottom of the connecting frame, a limiting plate is fixedly installed on the bottom end of each guide column, a spring is fixedly installed on the upper surface of each limiting plate, the top end of each spring is fixedly connected to the bottom surface of the connecting frame, and each spring is respectively sleeved on the outer surface of each guide column, two groups of water guide grooves are provided inside the drainage box, and the two groups of water guide grooves are respectively connected to the two drainage grooves.

[0009] Preferably, the diameter of the guide column is equal to the diameter of the guide hole, so that the connecting frame can slide up and down better under the guidance of the guide column.

[0010] Preferably, the diameter of the filter holes of the U-shaped filter is smaller than the diameter of the filter holes of the filter plate, so as to better perform successive filtration and avoid the problem of too many large impurities in the rainwater when the rainwater is discharged and collected.

[0011] Preferably, a grid plate is placed between the two placement grooves to better block large impurities in the water body.

[0012] Preferably, the length and width of the fixing frame and the connecting frame are equal to the length and width of the interior of the drainage box, so as to avoid the problem of water being directly discharged from the gap due to the presence of gaps.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the drainage device for sponge city has the following beneficial effects:

[0015] The utility model is provided with a grating plate, so that impurities in the accumulated water can be better blocked during use to prevent them from entering the interior of the drainage box. By providing a filter plate, impurities in the water can be better filtered for a second time, and the water can be filtered again by the U-shaped filter. Therefore, impurities in the water can be better reduced in the sponge city water collection system. By providing a fixing frame, a connecting frame and a spring, when the amount of accumulated water is too large, the water flow rate increases, and the pressure on the U-shaped filter increases, thereby pressing the connecting frame and the U-shaped filter to move downward under the guidance of the guide column and the guide hole, and the compression spring contracts, so that when the connecting frame moves downward, the water guide groove on the inner side of the drainage box is exposed, thereby more quickly draining out the water, which can extremely ensure the discharge effect when the water is too large. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is an exploded view of the internal structure of the drainage box of the utility model;

[0018] Figure 3 This is an exploded connection diagram of the fixing frame and the connecting frame of the utility model;

[0019] Figure 4 This is a cross-sectional view of the drainage box of the utility model.

[0020] In the figure: 1-drainage box, 2-grid plate, 3-drainage groove, 4-U-shaped filter, 5-fixed frame, 6-spring, 7-connecting frame, 8-filter plate, 9-guide column, 10-limiting plate, 11-bottom groove, 12-connecting groove, 13-water guide groove, 14-placement groove one, 15-placement groove two, 16-guide hole. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: a drainage device for a sponge city, comprising a drainage box 1, a bottom groove 11 is opened in the middle of the inner bottom wall of the drainage box 1, drainage grooves 3 are opened on both sides of the inner bottom wall of the drainage box 1, and the bottom groove 11 and the two drainage grooves 3 are connected through a connecting groove 12.

[0023] Two placement grooves 14 and two placement grooves 2 15 are respectively provided on the upper part of the interior of the drainage box 1. A grid plate 2 is placed between the two placement grooves 14 to better block large impurities in the water body. A fixing frame 5 is placed between the two placement grooves 2 15. A filter plate 8 is fixedly installed at the bottom of the fixing frame 5. Guide columns 9 are fixedly installed at the four corners of the filter plate 8. A connecting frame 7 is placed below the filter plate 8.

[0024] The length and width of the fixing frame 5 and the connecting frame 7 are equal to the length and width inside the drainage box 1, avoiding the problem of water being directly discharged from the gap due to the presence of a gap between them. A U-shaped filter screen 4 is fixedly installed at the bottom of the connecting frame 7. The diameter of the filter holes of the U-shaped filter screen 4 is smaller than the diameter of the filter holes of the filter plate 8, so as to better perform successive filtration and avoid the problem of too many large impurities in the rainwater when the rainwater is discharged and collected. Guide holes 16 are provided at the four corners of the connecting frame 7, and the bottom end of each guide column 9 passes through the four guide holes 16 respectively and extends to the bottom of the connecting frame 7. The diameter of the guide column 9 is equal to the diameter of the guide hole 16, so that the connecting frame 7 can slide up and down under the guidance of the guide column 16.

[0025] A limiting plate 10 is fixedly installed at the bottom end of each guide column 9, and a spring 6 is fixedly installed on the upper surface of each limiting plate 10. The top end of each spring 6 is fixedly connected to the bottom surface of the connecting frame 7, and each spring 6 is respectively sleeved on the outer surface of each guide column 9. Two groups of water guide grooves 13 are opened inside the drainage box 1, and the two groups of water guide grooves 13 are respectively connected to the two drainage grooves 3.

[0026] Working principle: When in use, the impurities in the accumulated water are blocked by the grille plate 2 to prevent them from entering the interior of the drainage box 1, the impurities in the water body are secondary filtered by the filter plate 8, and the water body can be filtered again by the U-shaped filter screen 4. Therefore, the impurities in the water body can be better reduced in the sponge city water collection system. When the amount of accumulated water is too large, the water flow increases, and the pressure on the U-shaped filter screen 4 increases, which will press the connecting frame 7 and the U-shaped filter screen 4 to move downward under the guidance of the guide column 9 and the guide hole 16, and the compression spring 6 contracts, and the connecting frame 7 moves downward. The water guide groove 13 on the inner side of the drainage box 1 is exposed, and the water body can be introduced into the interior of the drainage groove 3 through the water guide groove 13, so that the water body can be discharged through the drainage groove 13 more quickly, which can excellently ensure the discharge effect when the water body is too large.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage device for a sponge city, comprising a drainage box (1), characterized in that: A bottom groove (11) is provided in the middle of the inner bottom wall of the drainage box (1), drainage grooves (3) are provided on both sides of the inner bottom wall of the drainage box (1), and the bottom groove (11) and the two drainage grooves (3) are connected via a connecting groove (12); Two placement slots 1 (14) and two placement slots 2 (15) are respectively provided on the upper part of the interior of the drainage box (1), a fixing frame (5) is provided between the two placement slots 2 (15), a filter plate (8) is fixedly installed on the bottom of the fixing frame (5), guide columns (9) are fixedly installed at the four corners of the filter plate (8), a connecting frame (7) is provided below the filter plate (8), a U-shaped filter screen (4) is fixedly installed on the bottom of the connecting frame (7), guide holes (16) are provided at the four corners of the connecting frame (7), and each guide column (9) is provided with a guide hole (16). The bottom end of each guide column (9) passes through four guide holes (16) and extends to the bottom of the connecting frame (7). A limit plate (10) is fixedly installed at the bottom end of each guide column (9). A spring (6) is fixedly installed on the upper surface of each limit plate (10). The top end of each spring (6) is fixedly connected to the bottom surface of the connecting frame (7), and each spring (6) is respectively sleeved on the outer surface of each guide column (9). Two groups of water guide grooves (13) are opened inside the drainage box (1), and the two groups of water guide grooves (13) are respectively connected to the two drainage grooves (3).

2. A drainage device for a sponge city according to claim 1, characterized in that: The diameter of the guide column (9) is equal to the diameter of the guide hole (16).

3. A drainage device for a sponge city according to claim 1, characterized in that: The diameter of the filter holes of the U-shaped filter screen (4) is smaller than the diameter of the filter holes of the filter plate (8).

4. A drainage device for a sponge city according to claim 1, characterized in that: A grid plate (2) is placed between the two placement grooves (14).

5. The drainage device for sponge city according to claim 1, characterized in that: The length and width of the fixing frame (5) and the connecting frame (7) are equal to the length and width of the interior of the drainage box (1).

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