A rainwater collection device for sponge city

Abstract

The invention relates to a rainwater collection device for sponge cities, which effectively solves the problem that a filter plate is clogged and difficult to clean. The technical solution is as follows: the device comprises a first shell, wherein a V-shaped rod is hingedly connected on the lower end surface of the first shell to swing left and right and open upward, and a rectangular box body with an upper end opening is fixed to the upper ends of the rods on the left and right sides of the V-shaped rod, and the outer plates of the two box bodies in the left and right directions are provided with drainage ports, which can be opened and closed. A through hole is provided on the upper side plate of the first shell, and an arc-shaped circular tube with an opening facing downward is provided in the first shell, and a water inlet is provided in the middle of the upper side of the circular tube. When the filter plate is clogged, the present invention opens a yielding slot on the box body, and water containing impurities on the upper side of the filter plate flows out through the yielding slot, and at the same time, water on the filter plate located on the lower side of the box body is squeezed upward, so that the impurities clogged with the filter plate are suspended, and are discharged with water through the yielding slot and collected by a collecting box, thereby solving the problem that the impurities clogged in the filter plate are difficult to remove.

Description

Technical Field

[0001] The present invention relates to the field of sponge cities, and particularly to a rainwater collection device for sponge cities. Background Art

[0002] To solve the problem of urban rainwater collection, there is a patent for invention with the authorization announcement number CN115434412B in the prior art. When the above patent is in use, the first filter plate 33 and the second filter plate 34 are alternately replaced, and impurities are discharged through the first sludge discharge port 312 and the second sludge discharge port 313. Then, part of the rainwater is collected into the interior of the diversion fan-shaped cylinder 35 through the third filter plate 36 and sprayed through the spraying assembly to perform backwashing on the first filter plate 33 and the second filter plate 34. Although the above patent can collect urban rainwater, it still has the following problems:

[0003] 1. Since it is municipal drainage, after the third filter plate 36 is used for a period of time, sundries such as leaves, plastic products, sludge, and particulate matters will accumulate on it. If a scraping plate 21 is used for cleaning, it is very difficult for the scraping plate 21 to clean the above sundries from the third filter plate 36. Even the scraping plate 21 will squeeze the above sundries into the mesh holes of the third filter plate 36, blocking the third filter plate 36. At the same time, it increases the friction force between the third filter plate 36 and the scraping plate 21 during rotation, making it difficult for the filter inner cylinder 32 to rotate and affecting the collection of sundries.

[0004] 2. When the third filter plate 36 is blocked by sundries after being used for a period of time, the amount of water entering the filter inner cylinder 32 through the third filter plate 36 will be greatly reduced. Since the sundries accumulated on the first filter plate 33 and the second filter plate 34 are also branches, leaves, plastics, and sludge, etc., the above sundries are heavy and have a large adhesion force with the first filter plate 33 and the second filter plate 34. It takes a certain amount of backwashing time under a certain water pressure to clean the above sundries. Therefore, even if a booster pump is provided on the first water distribution pipe 371 or the second water distribution pipe 381, when the water inflow in the filter inner cylinder 32 is greatly reduced, without enough water storage, there will not be enough backwashing time, resulting in it being difficult to clean the sundries from the filter plate 5. Summary of the Invention

[0005] In view of the above situation, to overcome the deficiencies of the prior art, the present invention provides a rainwater collection device for sponge cities, effectively solving the problem that sundries are difficult to remove from the filter plate.

[0006] The technical solution is to include a first shell, a V-shaped rod that swings left and right and opens upward is hinged on the lower end surface of the first shell, the hinge is located at the corner of the V-shaped rod, a rectangular box body with an upper end opening is fixed to the upper ends of the left and right side rods of the V-shaped rod, and the outer plates of the two boxes in the left and right directions are provided with drainage holes, which can be opened and closed;

[0007] A through hole is provided on the upper side plate of the first shell, and an arc-shaped circular tube with an opening facing downward is provided in the first shell, and a water inlet hole is provided in the middle of the upper side of the circular tube, the water inlet hole is connected with the through hole, and the left and right ports of the circular tube can be opened and closed;

[0008] There is a filter plate that can move up and down in the box body, and there is a water outlet on the lower side plate of the box body. The filter plate moves downward to block the water outlet.

[0009] When the V-shaped rod swings to one of the left and right sides, one box body is in a horizontal state and the other box body is in an inclined state. The box body in the horizontal state is placed under one end of the circular tube on the corresponding side and opens it, and the other end of the circular tube is closed. During the swinging of the V-shaped rod, the drain port on the outer plate of the box body located on the front side of the swinging direction is opened, and one end of the circular tube on the corresponding side of the box body is closed, the filter plate in the box body moves downward a certain distance, and the box body located on the rear side of the swinging direction changes from inclined to horizontal and opens the water outlet therein. When in the horizontal state, it is placed under one end of the circular tube on the corresponding side, and one end of the circular tube is opened, and the drain port on the outer plate of the box body is closed during the swinging process.

[0010] Preferably, a second shell is fixed on the lower end surface of each box body, and a clearance hole penetrating the lower side plate is provided on the upper side plate of the second shell, and the clearance hole on the upper side plate of the second shell is connected with the water outlet hole on the box body;

[0011] A vertical straight rod is installed in the middle of the filter plate. The filter plate can drive the straight rod to move up and down. The lower end of the straight rod passes through the water outlet and the clearance hole on the upper side plate and is placed in the second shell. The diameter of the straight rod is smaller than the diameter of the clearance hole and the water outlet. A rubber block is fixed to the lower end of the straight rod. The rubber block does not contact the inner edge surface of the second shell. When the filter plate moves downward and the straight rod drives the rubber block to move downward, the rubber block blocks the clearance hole on the lower side plate of the second shell. After the rubber block moves upward, the water outlet is connected with the clearance hole on the lower side plate of the second shell.

[0012] A compression spring is sleeved on the straight rod, and the compression spring is located between the filter plate and the lower side plate of the box body.

[0013] Preferably, the filter plate is provided with limiting holes which penetrate through the filter plate. A straight rod is inserted into the limiting holes. Blind holes are formed in the side walls of the limiting holes. A round head pin is installed in the blind holes. A compression spring is arranged at the bottom of the blind hole. The other end of the compression spring contacts with the round head pin. A counterbore is formed in the outer edge of the upper end of the straight rod. The ball head pin can be placed in the counterbore and can also disengage from the counterbore.

[0014] Preferably, a stop block is fixed on the inner edge surface of the second housing. The stop block is located above the rubber block. When the rubber block moves upward, it contacts the stop block. The stop block prevents the rubber block from moving upward. After the stop block contacts the rubber block, there are intervals between the rubber block and the upper and lower end surfaces in the second housing, so that the water outlet hole communicates with the relief hole on the lower side plate of the second housing.

[0015] Preferably, a hose is installed on the lower end surface of the second housing. The upper end of the hose communicates with the relief hole on the lower side plate of the second housing. The lower end of the hose passes through the lower side plate of the first housing.

[0016] Preferably, rectangular relief notches are provided on the upper sides of the left side plate of the left box body and the right side plate of the right box body. Each relief notch penetrates through the upper end surface of the corresponding side plate. The relief notches form the drainage ports of the box body. When the filter plate is at the highest position of its displacement, the lower end surface of each relief notch is located in the middle of the upper and lower end surfaces of the corresponding filter plate.

[0017] A flat plate is hinged in each relief notch. The hinged position is located above the relief notch, so that the lower side of the flat plate can swing left and right. The left and right swing of the lower side of the flat plate can open and close the rectangular notch.

[0018] A torsion spring is installed on the hinge shaft. The torsion spring always applies a force to swing the lower side of the flat plate towards the inner side of the box body to close the rectangular notch.

[0019] A swing rod is hinged in the middle of the upper end surface of the filter plate. A vertical rod parallel to the flat plate is fixed on the upper end surface of the flat plate. A fixed block is fixed on the vertical rod. A straight notch is formed in the fixed block along the length direction of the vertical rod. A cylindrical block is fixed on the upper end of the swing rod. The cylindrical block can slide and rotate in the straight notch.

[0020] Preferably, horizontal through grooves are formed at both ports of the round tube. A horizontal baffle is installed in the through grooves. Both the left and right ends of the baffle are placed outside the arc-shaped bent pipe. A round hole is formed in the baffle. The baffle can move left and right in the through grooves. A limit block is fixed on the upper end surface of the baffle outside the arc-shaped bent pipe. A compression spring is fixed on the limit block. The other end of the compression spring is fixed on the arc-shaped bent pipe. The compression spring applies a force to move the baffle towards the outer side of the round tube. When the V-shaped rod deflects, the box body pushes the baffle towards the inner side of the round tube through the vertical rod, and simultaneously compresses the compression spring.

[0021] Preferably, a counterweight block is fixed on the inner side of the V-shaped rod, and the center of gravity of the counterweight block is at the same distance from the two end rods of the V-shaped rod; two support blocks are fixed on the lower end surface of the first shell, and the support blocks are located on the left and right sides of the hinge of the V-shaped rod. When the V-shaped rod swings to one of the left and right sides, the V-shaped rod can contact the upper end surface of the corresponding support block, so that the V-shaped rod stops swinging, and at the same time one of the box bodies is in a horizontal state.

[0022] Preferably, there is a collection box with an upper opening on each of the left and right sides of the first shell cavity, and a filter screen is provided at the bottom of the collection box;

[0023] The front and rear end surfaces of the cavity in each box body are respectively provided with two sinking grooves in the up and down directions, and two sliding blocks are respectively fixed on the front and rear sides of the filter plate, and the sliding blocks are placed in the sliding grooves, and the filter plate moves up and down through the sliding blocks.

[0024] The present invention has the following steps: when the filter plate is blocked, the filter plate pushes the straight rod so that the rubber block on the lower side of the straight rod blocks the clearance hole of the lower side plate of the second shell, so that the collected water is retained in the box body and acts as a power source to make the V-shaped rod deflect without an external power source; when the V-shaped rod swings, the clearance slot on the box body is opened, and the water containing impurities on the upper side of the filter plate in the box body located in the front side of the swing will flow out through the clearance slot; and when the clearance slot is opened, under the action of the gravity of the counterweight block and the box body containing water, the filter plate can move downward a certain distance, and the water on the filter plate located on the lower side of the box body will be squeezed upward, so that the debris blocking the filter plate is suspended and discharged with the water through the clearance slot and collected in the collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the front view of the present invention.

[0026] Figure 2 It is a main cross-sectional view of the present invention, in which the left box body is in a horizontal state and the right box body is in an inclined state.

[0027] Figure 3 For the present invention Figure 2 The main cross-sectional view of the V-shaped rod swinging to the left after the filter plate in the left box body is blocked.

[0028] Figure 4 For the present invention Figure 3 A main sectional view showing the left box body in an inclined state and the right box body in a horizontal state.

[0029] Figure 5 For the present invention Figure 2 Enlarged view of point A in .

[0030] Figure 6 It is a three-dimensional cutaway view of the box body, the straight rod and the second shell of the present invention. DETAILED DESCRIPTION

[0031] The following further elaborates on the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0032] As Figures 1 to 6 shown, the present invention includes a first housing 1. At the lower end surface inside the first housing 1, a V-shaped rod 2 that swings left and right and has an upward opening is hinged. The hinged position is at the corner of the V-shaped rod 2. At the upper ends of the left and right side rods of the V-shaped rod 2, a rectangular box body 3 with an upward opening is fixed. The outer side plates of the two box bodies 3 in the left-right direction have drain openings, and the drain openings can be opened and closed.

[0033] There is a through hole on the upper side plate of the first housing 1. Inside the first housing 1, there is an arc-shaped circular tube 4 with a downward opening. In the middle of the upper side of the circular tube 4, there is a water inlet hole, and the water inlet hole is communicated with the through hole. The left and right end ports of the circular tube 4 can be opened and closed.

[0034] Inside the box body 3, there is a filter plate 5 that can move up and down. There is a water outlet hole 6 on the lower side plate of the box body 3. When the filter plate 5 moves downward, the water outlet hole 6 can be blocked.

[0035] After the V-shaped rod 2 swings to one side of the left or right, one of the box bodies 3 is in a horizontal state, and the other box body 3 is in an inclined state. The box body 3 in the horizontal state is placed below one end port of the corresponding circular tube 4 and makes it open, and the other end of the circular tube 4 is closed; during the swinging process of the V-shaped rod 2, the drain opening on the outer side plate of the box body 3 located on the front side of the swinging direction is opened, and one end port of the circular tube 4 corresponding to this box body 3 is closed. The filter plate 5 inside this box body 3 moves downward by a certain distance. The box body 3 located on the rear side of the swinging direction changes from an inclined state to a horizontal state and opens the water outlet hole 6 inside it. When in the horizontal state, it is placed below one end port of the corresponding circular tube 4 and makes one end port of the circular tube 4 open, and the drain opening on the outer side plate of this box body 3 is closed during the swinging process.

[0036] On the lower end surface of each box body 3, a second housing 11 is fixed. There is a relief hole 12 on the upper side plate of the second housing 11 that penetrates the lower side plate. The relief hole 12 on the upper side plate of the second housing 11 is communicated with the water outlet hole 6 on the box body 3.

[0037] A vertical straight rod 13 is installed in the middle of the filter plate 5. The filter plate 5 can drive the straight rod 13 to move up and down. The lower end of the straight rod 13 passes through the water outlet hole 6 and the relief hole 12 on the upper side plate and is placed inside the second housing 11. The diameter of the straight rod 13 is smaller than the diameters of the relief hole 12 and the water outlet hole 6. A rubber block 14 is fixed at the lower end of the straight rod 13. The rubber block 14 does not contact the inner surface of the second housing 11. When the filter plate 5 moves downward and drives the rubber block 14 to move downward through the straight rod 13, the rubber block 14 blocks the relief hole 12 on the lower side plate of the second housing 11. When the rubber block 14 moves upward, the water outlet hole 6 is communicated with the relief hole 12 on the lower side plate of the second housing 11.

[0038] A compression spring is sleeved on the straight rod 13, and the compression spring is located between the filter plate 5 and the lower side plate of the box body 3.

[0039] The filter plate 5 is provided with a limiting hole which penetrates through the filter plate 5. The straight rod 13 is inserted into the limiting hole. A blind hole is provided on the side wall of the limiting hole, and a round head pin 17 is installed in the blind hole. There is a compression spring at the bottom of the blind hole, and the other end of the compression spring contacts the round head pin 17. A counterbore is provided on the outer edge of the upper end of the straight rod 13, and the ball head pin can be placed in the counterbore and can also be disengaged from the counterbore.

[0040] A stop block 15 is fixed on the inner edge surface of the second housing 11, and the stop block 15 is located above the rubber block 14; when the rubber block 14 moves upward, it contacts the stop block 15, and the stop block 15 prevents the rubber block 14 from moving upward. After the stop block 15 contacts the rubber block 14, there are intervals between the rubber block 14 and the upper and lower end faces in the second housing 11, so that the water outlet hole 6 communicates with the relief hole 12 on the lower side plate of the second housing 11.

[0041] A hose 16 is installed on the lower end face of the second housing 11. The upper end of the hose 16 communicates with the relief hole 12 on the lower side plate of the second housing 11, and the lower end of the hose 16 passes through the lower side plate of the first housing 1.

[0042] Rectangular relief notches are provided on the upper sides of the left side plate of the left box body 3 and the right side plate of the right box body 3. Each relief notch penetrates through the upper end face of the corresponding side plate. The relief notches form the drainage ports of the box body 3. When the filter plate 5 is at the highest position of its displacement, the lower end face of each relief notch is located in the middle of the upper and lower end faces of the corresponding filter plate 5;

[0043] A flat plate 18 with a hinge position above the relief notch is hinged in each relief notch, so that the lower side of the flat plate 18 can swing left and right. The left and right swings of the lower side of the flat plate 18 can open and close the rectangular notch,

[0044] A torsion spring is installed on the hinge shaft, and the torsion spring makes the lower side of the flat plate 18 always be subjected to a force swinging towards the inner side of the box body 3 to close the rectangular notch;

[0045] A swing rod 19 is hinged in the middle of the upper end face of the filter plate 5. A vertical rod 20 parallel to the flat plate 18 is fixed on the upper end face of the flat plate 18. A fixed block is fixed on the vertical rod 20, and a straight notch arranged along the length direction of the vertical rod 20 is provided on the fixed block. A cylindrical block is fixed on the upper end of the swing rod 19, and the cylindrical block can slide and rotate in the straight notch.

[0046] When the filter plate 5 drives the straight rod 13 to move downward, the upper end of the swing rod 19 can slide downward along the straight notch, and the swing rod 19 does not drive the vertical rod 20 to move;

[0047] When the box body 3 swings under the action of the V-shaped rod 2, the vertical rod 20 on the box body 3 located on the front side of the swinging direction will first contact the inner wall of the first shell 1, and then the vertical rod 20 drives the flat plate 18 to swing around the hinge axis. The yielding slot on the box body 3 opens, and the vertical plate will first make the cylindrical block on the swing rod 19 slide to the upper side of the straight slot, and then press the filter screen down through the cylindrical block and the swing rod 19, so that the ball head and the straight rod 13 on the filter plate 5 are separated, and the filter plate 5 continues to move downward for a certain distance.

[0048] The two ends of the circular tube 4 are provided with horizontal through grooves, and a horizontal baffle 21 is installed in the through groove. The left and right ends of the baffle 21 are placed outside the arc-shaped curved tube 4. The baffle 21 is provided with a circular hole, and the baffle 21 can move left and right in the through groove; the upper end surface of the baffle 21 is located outside the arc-shaped curved tube 4 and a limit block is fixed, and a compression spring is fixed on the limit block, and the other end of the compression spring is fixed on the arc-shaped curved tube 4, and the compression spring gives the baffle 21 a force to move toward the outside of the circular tube 4;

[0049] When the V-shaped rod 2 deflects, the box body 3 pushes the baffle 21 to move inwardly of the round tube 4 through the vertical rod 20, and at the same time squeezes the compression spring;

[0050] During use, when the compression spring is not under stress, the circular hole on the baffle 21 is offset from the cavity at the end of the circular tube 4, so that the end of the circular tube 4 is closed; when the V-shaped rod 2 swings, the vertical rod 20 squeezes the baffle 21, and the baffle 21 moves inward so that the circular hole on the baffle 21 is connected to the end cavity of the circular tube 4, so that the end of the circular tube 4 is opened.

[0051] A counterweight block 8 is fixed to the inner side of the V-shaped rod 2, and the center of gravity of the counterweight block 8 is at the same distance from the two end rods of the V-shaped rod 2;

[0052] Two support blocks 9 are fixed on the lower end surface of the first shell 1, and the support blocks 9 are located on the left and right sides of the hinge of the V-shaped rod 2. When the V-shaped rod 2 swings to one of the left and right sides, the V-shaped rod 2 can contact the upper end surface of the corresponding support block 9, so that the V-shaped rod 2 stops swinging and one of the box bodies 3 is in a horizontal state.

[0053] The left and right sides of the cavity of the first shell 1 are each provided with a collection box 7 with an upper end opening, and a filter screen is provided at the bottom of the collection box 7;

[0054] The front and rear end surfaces of the cavity in each box body 3 are respectively provided with two sink grooves 10 in the up and down direction, and two slide blocks are respectively fixed on the front and rear sides of the filter plate 5. The slide blocks are placed in the slide grooves, and the filter plate 5 moves up and down via the slide blocks.

[0055] When the present invention is used, the first shell 1 is placed underground, and the accumulated water on the ground flows into the circular pipe 4 through the through hole on the first shell 1, and the hose 16 is connected to the water reservoir.

[0056] The following Figure 2The detailed usage process of the present invention will be described based on its initial state.

[0057] In Figure 2 When in the state, the box body 3 on the left side is in a horizontal state. The box body 3 on the left side is simultaneously placed below the left port of the round tube 4. The filter plate 5 is at the highest position of its displacement. At this position, the round head pin 17 is placed in the counterbore of the straight rod 13. The straight rod 13 moves upward with the filter plate 5, causing the rubber block 14 to move upward and contact the stop block 15, opening the relief hole 12 on the lower side plate of the second housing 11, and allowing the water flowing out from the water outlet hole 6 to be discharged through the relief hole 12; when the box body 3 on the left side is horizontal, the lower end of the flat plate 18 swings inward under the action of the torsion spring. At the same time, since when the filter plate 5 is at the highest position of its displacement, the lower end surface of each relief notch is located in the middle of the upper and lower end surfaces of the filter plate 5, the lower end of the flat plate 18 will contact the filter plate 5, preventing the lower end of the flat plate 18 from continuing to rotate inward and keeping the flat plate 18 in a state of blocking the relief notch on the side plate of the box body 3. In the state where the lower end of the flat plate 18 is in contact with the filter plate 5, the vertical rod 20 on the flat plate 18 presses inward on the baffle 21 on the left round tube 4, causing the baffle 21 to move inward and connecting the round hole on the baffle 21 with the cavity at the end of the round tube 4, opening the lower port of the left round tube 4;

[0058] In Figure 2 When in the state, the box body 3 on the right side is in an inclined state. The V-shaped rod 2 contacts the support block 9 on the right side, causing the V-shaped rod 2 to stop swinging. At this time, the center of gravity of the counterweight 8 is located on the right side of the hinge of the V-shaped rod 2. Under the action of the self-weight of the counterweight 8 and the box body 3 on the right side, the vertical rod 20 on the box body 3 on the right side contacts the right side surface of the first housing 1. The vertical rod 20 causes the flat plate 18 to rotate and open the relief notch. In this state, the filter plate 5 in the box body 3 on the right side is also pushed to the bottom of the box body 3 by the vertical rod 20 through the swing rod 19. The round head pin 17 disengages from the counterbore on the straight rod 13, placing the filter plate 5 at the lowest position of its displacement. The filter plate 5 drives the straight rod 13 through the round head pin 17, causing the rubber block 14 to block the relief hole 12 on the lower side plate of the second housing 11; the vertical rod 20 on the box body 3 on the right side disengages from the baffle 21 at the right port of the round tube 4. Under the action of the compression spring, the round hole on the baffle 21 is disconnected from the cavity of the right port of the round tube 4, closing the right port of the round tube 4.

[0059] After rain, the accumulated water on the ground will flow into the round tube 4 through the through holes, and then flow into the box body 3 on the left side through the left port of the round tube 4. After being filtered by the filter plate 5, it enters the second housing 11 and then flows to the reservoir through the hose 16;

[0060] Since the accumulated water on the ground contains leaves, granular mud blocks or stones, and plastic products, etc., after being used for a period of time, the above sundries will accumulate on the filter plate 5, causing the filter plate 5 to become blocked;

[0061] Before the filter plate 5 is blocked, the water flowing in from the upper side of the filter plate 5 flows out of the relief hole 12 in time. In this state, the filter plate 5 will not move downward.

[0062] Since the filter plate 5 can move up and down, after the filter plate 5 is blocked, the water on the filter plate 5 in the left box body 3 will accumulate more and more. The accumulated water on the lower side of the filter plate 5 is discharged through the relief hole in time. The accumulated water on the filter plate 5 will press the filter plate 5 to move downward. The filter plate 5 drives the swing rod 19 and the straight rod 13 to move downward. The cylindrical block above the swing rod 19 will slide downward in the straight groove until the rubber block 14 on the straight rod 13 blocks the relief hole 12 on the lower side plate of the second housing 11. At this time, water cannot enter the hose 16 through the relief hole 12, and water accumulates in the box body 3, causing some sundries on the filter plate 5 to float up; since the relief hole 12 is blocked, the water on the upper side of the filter plate 5 will still seep to the lower side of the filter plate 5 and accumulate in the box body 3 on the lower side of the filter plate 5;

[0063] When the weight of the left box body 3 and water is greater than the weight of the counterweight 8 and the right box body 3, the left box body 3 and water will press the V-shaped rod 2 to swing to the left. As Figure 3 shown, the box body 3 swings with the V-shaped rod 2. The vertical rod 20 on the left box body 3 will separate from the baffle 21. The baffle 21 moves to the outside of the round tube 4 under the action of the compression spring, and the baffle 21 closes the left port of the round tube 4;

[0064] After that, the box body 3 will continue to swing with the V-shaped rod 2. When the vertical rod 20 on the left box body 3 contacts the left inner wall of the first housing 1, the upper end of the vertical rod 20 stops moving left and right, and the V-shaped rod 2 will continue to drive the box body 3 to move. Under the pressure of the left box body 3 and the counterweight 8, the left vertical rod 20 drives the flat plate 18 to rotate around the hinge axis, opening the relief notch on the left box body 3. The water on the upper side of the filter plate 5 in the left box body 3 will flow out through the relief notch. As Figure 4 shown, the water flow drives the sundries above the filter plate 5 to fall into the lower collection box 7. During the opening process of the relief notch, the vertical rod 20 presses the filter plate 5 downward through the cylindrical block and the swing rod 19, so that the round head pin 17 on the filter plate 5 separates from the straight rod 13. The swing rod 19 will make the filter plate 5 continue to move downward a certain distance, squeezing the water on the lower side of the filter plate 5 to the upper side of the filter plate 5. The water moving to the upper side of the filter plate 5 will separate the leaves, granular mud blocks or stones adsorbed on the filter plate 5 from the filter plate 5 and discharge them through the relief slot hole with the water and fall into the collection box 7;

[0065] When water, leaves, granular mud blocks or stones, and domestic garbage are placed in the collection box 7, since the lower side of the collection box 7 is a filter screen, the water will seep out through the filter screen and be discharged through the holes on the lower side of the first housing 1;

[0066] When the V-shaped rod 2 swings to the left, the vertical rod 20 on the right side of the box body 3 is separated from the right side wall of the first shell 1, and the flat plate 18 blocks the yielding slot under the action of the torsion spring; at the same time, when the vertical rod 20 swings under the action of the torsion spring, the vertical rod 20 applies an upward pulling force to the filter plate 5 through the swing rod 19, and the compression spring under the filter plate 5 applies an upward force to the filter plate 5. Under the action of the swing rod 19 and the compression spring, the filter plate 5 moves upward, and at the same time, the filter plate 5 drives the straight rod 13 to move upward, and the straight rod 13 drives the rubber block 14 to move upward until it contacts the stopper 15 and stops moving upward, opening the yielding hole 12 on the lower side plate of the second shell 11. After that, the round head pin 17 on the filter plate 5 is placed in the countersunk hole on the straight rod 13. When the box body 3 on the right side swings to the left, the vertical rod 20 thereon will squeeze the baffle 21 on the right side port of the circular tube 4, so that the right side port of the circular tube 4 is opened.

[0067] Afterwards, the V-shaped rod 2 and the box body 3 swing back and forth when the filter plate 5 is blocked, and the filter plate 5 is backflushed and debris is cleaned;

[0068] When it is sunny, just collect the sundries in the collection box 7.

[0069] When the filter plate 5 is blocked, the filter plate 5 pushes the straight rod 13 so that the rubber block 14 on the lower side of the straight rod 13 blocks the clearance hole 12 on the lower side plate of the second shell 11, so that the collected water is retained in the box body 3, and acts as a power source to deflect the V-shaped rod 2, without the need for an external power source;

[0070] When the V-shaped rod 2 swings, the vertical rod 20 on the front side of the swinging direction drives the flat plate 18 to rotate around the hinge axis, so that the yield slot on the box body 3 is opened, and the water containing impurities on the upper side of the filter plate 5 in the box body 3 located on the front side of the swing will flow out through the yield slot; and when the yield slot is opened, under the action of the gravity of the counterweight block 8 and the box body 3 containing water, the filter plate 5 can move downward a certain distance, and the water on the lower side of the filter plate 5 located on the box body 3 will be squeezed upward, so that the debris blocking the filter plate 5 is suspended, and is discharged with the water through the yield slot hole and collected by the collecting box 7, which can effectively flush the debris blocking the filter plate 5 into the water on the upper side of the filter plate 5, and then pour it out again with the water through the yield slot hole, so that the recoil effect of the filter plate 5 is better; through the recoil method, the problem that the debris blocked in the filter plate 5 is difficult to remove can be solved.

[0071] The present invention uses the counterweight 8 to prevent the box body 3 from easily shifting to the other side when it shifts to one side. At the same time, the gravity of the counterweight 8 can increase the swing force of the V-shaped rod, so that the filter plate 5 can move downward a certain distance, thereby achieving a better recoil effect.

Claims

1. A rainwater collection device for sponge city, characterized in that, It includes a first housing (1). At the lower end surface inside the first housing (1), a V-shaped rod (2) that swings left and right and has an upward opening is hinged. The hinged position is at the corner of the V-shaped rod (2). At the upper ends of the left and right side rods of the V-shaped rod (2), a rectangular box body (3) with an upward opening is fixed. The outer side plates of the two box bodies (3) in the left-right direction have drain ports, and the drain ports can be opened and closed. There is a through hole on the upper side plate of the first housing (1). Inside the first housing (1), there is an arc-shaped circular tube (4) with a downward opening. In the middle of the upper side of the circular tube (4), there is a water inlet hole, and the water inlet hole is communicated with the through hole. The left and right end ports of the circular tube (4) can be opened and closed. Inside the box body (3), there is a filter plate (5) that can move up and down. There is a water outlet hole (6) on the lower side plate of the box body (3). When the filter plate (5) moves downward, it can block the water outlet hole (6). After the V-shaped rod (2) swings to one side of the left or right, one of the box bodies (3) is in a horizontal state, and the other box body (3) is in an inclined state. The box body (3) in the horizontal state is placed below one end port of the corresponding circular tube (4) on the corresponding side and opens it, and the other end of the circular tube (4) is closed; during the swinging process of the V-shaped rod (2), the drain port on the outer side plate of the box body (3) located on the front side of the swinging direction is opened, and one end port of the circular tube (4) on the corresponding side of this box body (3) is closed. The filter plate (5) inside this box body (3) moves downward by a certain distance. The box body (3) located on the rear side of the swinging direction changes from an inclined state to a horizontal state and opens the water outlet hole (6) inside it. When in the horizontal state, it is placed below one end port of the corresponding circular tube (4) on the corresponding side and opens one end port of the circular tube (4), and the drain port on the outer side plate of this box body (3) is closed during the swinging process. On the upper side of the left side plate of the left box body and the right side plate of the right box body, there are rectangular relief notches. Each relief notch penetrates the upper end surface of the corresponding side plate. The relief notches form the drain ports of the box body (3). When the filter plate (5) is at the highest position of its displacement, the lower end surface of each relief notch is located in the middle of the upper end surface and the lower end surface of the corresponding filter plate (5). Inside each relief notch, a flat plate (18) with a hinged position above the relief notch is hinged, so that the lower side of the flat plate (18) can swing left and right. The left and right swings of the lower side of the flat plate (18) can open and close the rectangular notch. A torsion spring is installed on the hinge shaft. The torsion spring makes the lower side of the flat plate (18) always be subjected to a force that swings towards the inner side direction of the box body (3) to close the rectangular notch. In the middle of the upper end surface of the filter plate (5), a swing rod (19) is hinged. On the upper end surface of the flat plate (18), a vertical rod (20) parallel to the flat plate (18) is fixed. A fixed block is fixed on the vertical rod (20). A straight notch arranged along the length direction of the vertical rod (20) is opened on the fixed block. The upper end of the swing rod (19) is fixed with a cylindrical block, and the cylindrical block is placed in the straight notch and can slide and rotate in the straight notch. On the lower end surface of each box body (3), a second housing (11) is fixed. There is a relief hole (12) on the upper side plate of the second housing (11) that penetrates the lower side plate. The relief hole (12) on the upper side plate of the second housing (11) is communicated with the water outlet hole (6) on the box body (3). In the middle of the filter plate (5), a vertical straight rod (13) is installed. The filter plate (5) can drive the straight rod (13) to move up and down. The lower end of the straight rod (13) passes through the water outlet hole (6) and the relief hole (12) on the upper side plate and is placed inside the second housing (11). The diameter of the straight rod (13) is smaller than the diameters of the relief hole (12) and the water outlet hole (6). A rubber block (14) is fixed at the lower end of the straight rod (13). The rubber block (14) does not contact the inner surface of the second housing (11). When the filter plate (5) moves downward and drives the rubber block (14) to move downward through the straight rod (13), the rubber block (14) blocks the relief hole (12) on the lower side plate of the second housing (11). After the rubber block (14) moves upward, the water outlet hole (6) communicates with the relief hole (12) on the lower side plate of the second housing (11). A compression spring is sleeved on the straight rod (13), and the compression spring is located between the filter plate (5) and the lower side plate of the box body (3). When the filter plate drives the straight rod to move downward, the upper end of the swing rod can slide downward along the straight notch, and the swing rod does not drive the vertical rod to move. When the box body swings under the action of the V-shaped rod, the vertical rod on the box body located on the front side of the swinging direction will first contact the inner wall of the first housing. The vertical rod drives the flat plate to swing around the hinge axis, and the relief notch on the box body opens. And the vertical plate will first make the cylindrical block on the swing rod slide to the upper side of the straight notch, and then press the filter screen through the cylindrical block and the swing rod, so that the ball head on the filter plate is separated from the straight rod, and the filter plate continues to move downward a certain distance.

2. The rainwater collection device for sponge city according to claim 1, characterized in that, A limiting hole is opened on the filter plate (5), and the limiting hole penetrates through the filter plate (5). The straight rod (13) is inserted in the limiting hole. A blind hole is opened on the side wall of the limiting hole, and a round head pin (17) is installed in the blind hole. There is a compression spring at the bottom of the blind hole, and the other end of the compression spring contacts the round head pin (17). A counterbore is opened on the outer edge of the upper end of the straight rod (13). The ball head pin can be placed in the counterbore, and the ball head pin can also be separated from the counterbore.

3. The rainwater collection device for sponge city according to claim 2, characterized in that, A stop block (15) is fixed on the inner surface of the second housing (11), and the stop block (15) is located above the rubber block (14). When the rubber block (14) moves upward, it contacts the stop block (15), and the stop block (15) prevents the rubber block (14) from moving upward. After the stop block (15) contacts the rubber block (14), there are intervals between the rubber block (14) and the upper and lower end faces inside the second housing (11), so that the water outlet hole (6) communicates with the relief hole (12) on the lower side plate of the second housing (11).

4. The rainwater collection device for sponge city according to claim 2 or 3, characterized in that, A hose (16) is installed on the lower end surface of the second housing (11). The upper end of the hose (16) communicates with the relief hole (12) on the lower side plate of the second housing (11), and the lower end of the hose (16) passes through the lower side plate of the first housing (1).

5. The rainwater collection device for sponge city according to claim 4, characterized in that, Horizontal through slots are provided at both ends of the described circular tube (4). A horizontal baffle (21) is installed in the through slots. Both the left and right ends of the baffle (21) are placed outside the circular tube (4). Round holes are provided in the baffle (21), and the baffle (21) can move left and right within the through slots; a limit block is fixed on the upper end surface of the baffle (21) outside the circular tube (4). A compression spring is fixed on the limit block, and the other end of the compression spring is fixed on the circular tube (4). The compression spring applies a force to move the baffle (21) towards the outside of the circular tube (4). When the V-shaped rod (2) deflects, the box body (3) pushes the baffle (21) towards the inside of the circular tube (4) through the vertical rod (20), and at the same time compresses the compression spring.

6. The rainwater collection device for sponge city according to claim 1, characterized in that, A counterweight block (8) is fixed on the inner side of the described V-shaped rod (2). The center of gravity of the counterweight block (8) is at the same distance from both ends of the V-shaped rod (2). Two support blocks (9) are fixed on the lower end surface of the first housing (1). The support blocks (9) are located on the left and right sides of the hinge joint of the V-shaped rod (2). When the V-shaped rod (2) deflects towards one of the left or right sides, the V-shaped rod (2) can contact the upper end surface of the corresponding support block (9), causing the V-shaped rod (2) to stop swinging and at the same time making one of the box bodies (3) in a horizontal state.

7. The rainwater collection device for sponge city according to claim 1, characterized in that, There is a collection box (7) with an open upper end on each of the left and right sides inside the cavity of the first housing (1). The bottom of the collection box (7) has a filter screen. Two vertical sinking grooves (10) are provided on the front and rear end faces of the cavity inside each box body (3). Two sliders are fixed on each of the front and rear sides of the filter plate (5). The sliders are placed in the sliding grooves, and the filter plate (5) moves up and down through the sliders.

Images