Filtering device for garden rainwater collection based on sponge city

Abstract

The invention discloses a filtering device for garden rainwater collection based on a sponge city, and relates to the technical field of rainwater collection. The device comprises a shell, the top of the shell is fixedly connected with a first filter plate, and a collecting mechanism is arranged in the shell. When rainwater of a garden needs to be collected in normal rainy days, a worker starts a motor to enable a baffle to coincide with a hole of a first filter plate, then the hole of the first filter plate is opened, and the rainwater enters a water storage area in the shell for precipitation after being filtered for multiple times; a floating block floats upwards to enable an L-shaped telescopic rod to be connected with an adjusting rod, finally, a hole of a first filter plate made of a rubber material is stretched and expanded in the process that the adjusting rod moves from left to right, the effect of collecting rainwater is achieved through the design, and meanwhile the function of collecting a large amount of garden rainwater in the rainstorm environment can be achieved; and the phenomenon of excessive rainwater accumulation in the garden in rainstorm weather is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of rainwater collection, and in particular relates to a filtering device for collecting garden rainwater based on a sponge city. Background Art

[0002] With the continuous advancement of my country's urbanization process, garden landscape has received more and more attention as one of the important means to improve the urban environment and enhance the livability of the city. Among them, using rainwater collection devices to collect rainwater to supplement the water bodies in the garden landscape can effectively save the use of tap water, and can also cache part of the rainwater when the rainfall is too heavy, thus preventing urban waterlogging to a certain extent.

[0003] According to a disclosed rainwater collection device for landscape gardens in a sponge city (publication number: CN 221142912U), it includes a rainwater collection and reuse component, a solar energy component is arranged inside the rainwater collection and reuse component, and the rainwater collection and reuse component includes a water reservoir, and a pair of mutually symmetrical separation filter plates are fixedly connected to the upper end of the interior of the water reservoir.

[0004] In the above application, through the cooperation between the water reservoir and the separation filter plate assembly, it is difficult to solve the problem of cleaning the separation filter plate when it is used for a long time, resulting in excessive accumulation of debris in the rainwater on the surface of the separation filter plate. Therefore, we proposed a garden rainwater collection and filtration device based on sponge city. Summary of the invention

[0005] The present invention proposes a filtering device for collecting garden rainwater based on a sponge city, which solves the problems raised in the above documents.

[0006] The technical solution of the present invention is as follows: The present invention is a landscape garden rainwater collection device for a sponge city, comprising a shell, a first filter plate is fixedly connected to the top of the shell, and a collection mechanism is arranged inside the shell; The collecting mechanism includes a motor, the bottom of which is fixedly connected to the inner wall of the shell, the output shaft of the motor is fixedly connected to a threaded rod, the circumferential surface of the threaded rod is threadedly connected to a threaded sleeve, the side of the threaded sleeve is fixedly connected to a moving rod, the inside of the shell is fixedly connected to a water-blocking plate, the side of the water-blocking plate is provided with a moving groove, the inside of the moving groove is slidingly connected to the side of the moving rod, the end of the moving rod away from the side of the threaded sleeve is fixedly connected to a baffle, the top of the water-blocking plate is fixedly connected to a second filter plate, and the top of the water-blocking plate is fixedly connected to an isolation plate.

[0007] Furthermore, a moving block is threadedly connected to the circumferential surface of the threaded rod, an L-shaped telescopic rod is fixedly connected to the side of the moving block, a detection chamber is provided on the side of the water-blocking plate, a floating rod is fixedly connected to the side of the L-shaped telescopic rod, a floating block is fixedly connected to the bottom of the floating rod, the side of the floating block is slidably connected to the inside of the detection chamber, an adjusting groove is provided on the top of the first filter plate, an adjusting rod is slidably connected to the inside of the adjusting groove, the floating rod is fixedly connected to the side of the L-shaped telescopic rod, and its function is to drive the L-shaped telescopic rod to move by the floating rod, and the adjusting rod is slidably connected to the inside of the adjusting groove to expand the hole of the first filter plate by the adjusting rod.

[0008] Furthermore, a first limit plate is fixedly penetrated through the circumferential surface of the threaded rod, a second limit plate is fixedly penetrated through the circumferential surface of the threaded rod, a limit rod is fixedly penetrated through the side surface of the motor, the circumferential surface of the limit rod penetrates the side surface of the threaded sleeve and is slidably connected to the side surface of the threaded sleeve, the circumferential surface of the threaded rod is fixedly penetrated with the first limit plate to limit the displacement distance of the moving block, and the circumferential surface of the threaded rod is fixedly penetrated with the second limit plate to limit the displacement distance of the threaded sleeve.

[0009] Furthermore, the material of the first filter plate is set to rubber material, and the top of the baffle is located at the bottom of the first filter plate. The material of the first filter plate is set to rubber material so that the first filter plate can be deformed through the characteristics of the rubber material when subjected to force. The top of the baffle is located at the bottom of the first filter plate so that when the collection mechanism is not in use, the baffle blocks the hole of the first filter plate.

[0010] Furthermore, a water spray mechanism is provided inside the shell, and the water spray mechanism includes a rotating shaft, the side surface of the rotating shaft is fixedly connected to the end of the threaded rod away from the motor output shaft, a gear is fixedly penetrated through the circumferential surface of the rotating shaft, a sliding groove is provided on the inner wall of the shell, a sliding column is slidably connected to the inside of the sliding groove, the end of the sliding column away from the inside of the sliding groove is fixedly connected to a rack, the side surface of the rack is fixedly connected to a connecting rod, the side surface of the connecting rod penetrates the side surface of the water baffle and is slidably connected to the side surface of the water baffle, one end of the connecting rod is fixedly connected to a push plate, and the shell The inner wall of the water tank is fixedly connected to the inner wall, an input pipe is fixedly penetrated through the top of the water tank, an output pipe is fixedly penetrated through the side of the water tank, the side of the output pipe is fixedly penetrated through the side of the shell, one end of the output pipe is fixedly connected to a sprinkler head, an extrusion plate is slidably connected to the inside of the water tank, a force-bearing rod is fixedly connected to the side of the extrusion plate, the circumferential surface of the force-bearing rod penetrates the side of the water tank and is slidably connected to the side of the water tank, a water spraying mechanism is arranged inside the shell, the function of which is to reuse the clean rainwater collected and filtered and precipitated by the collecting mechanism through the water spraying mechanism.

[0011] Furthermore, a return spring is fixedly connected to the side of the water tank, and one end of the return spring away from the side of the water tank is fixedly connected to the circumferential surface of the force-bearing rod. The function of the return spring fixedly connected to the circumferential surface of the force-bearing rod at one end away from the side of the water tank is that when the force-bearing rod is not under force, it is reset by the elasticity of the return spring.

[0012] Furthermore, the circumferential surface of the gear and the side surface of the rack are meshed with each other, and one end of the force-bearing rod is located on the displacement trajectory of the push plate. The role of the mutual meshing of the circumferential surface of the gear and the side surface of the rack is to ensure that the rack can be driven to move when the gear rotates, and the role of one end of the force-bearing rod being located on the displacement trajectory of the push plate is to ensure that the push plate can push the force-bearing rod during the movement.

[0013] Furthermore, a cleaning mechanism is provided on the side of the shell, and the cleaning mechanism includes an electric telescopic rod, the side of the electric telescopic rod is fixedly connected to the side of the shell, the telescopic end of the electric telescopic rod is fixedly connected to the cleaning rod, a sliding groove is provided on the side of the shell, the interior of the sliding groove is slidably connected to the side of the cleaning rod, an end of the cleaning rod away from the telescopic end of the electric telescopic rod is fixedly connected to an internal cleaning brush, the telescopic end of the electric telescopic rod is fixedly connected to the cleaning telescopic rod, and an end of the cleaning telescopic rod away from the telescopic end of the electric telescopic rod is fixedly connected to an external cleaning brush, and the cleaning mechanism is provided on the side of the shell to clean the first filter plate and the second filter plate respectively by the internal cleaning brush and the external cleaning brush to prevent debris from blocking the hole.

[0014] Furthermore, a collecting groove is provided on the side of the shell, and a collecting box is slidably connected inside the collecting groove. The collecting box is slidably connected inside the collecting groove to collect debris cleaned by the internal cleaning brush.

[0015] Furthermore, the top of the collection box is located below the internal cleaning brush. The top of the collection box is located below the internal cleaning brush to ensure that the debris cleaned by the internal cleaning brush can accurately fall into the collection box.

[0016] The working principle and beneficial effects of the present invention are: 1. The present invention cooperates with the components of the collecting mechanism, such as the motor, threaded rod and floating plate. When it rains normally and the rainwater in the garden needs to be collected, the staff starts the motor to overlap the baffle with the hole of the first filter plate, and then opens the hole of the first filter plate. The rainwater enters the water storage area inside the shell for sedimentation after multiple filtrations. When heavy rain occurs, the floating block floats upward to connect the L-shaped telescopic rod and the adjusting rod. Finally, the hole of the first filter plate made of rubber is stretched and expanded during the movement of the adjusting rod from left to right. This design achieves the effect of collecting rainwater. At the same time, it can collect a large amount of garden rainwater in the face of heavy rain, preventing the phenomenon of excessive accumulation of garden rainwater in heavy rain.

[0017] 2. The present invention achieves mutual cooperation among the components such as the gears, racks and water tanks of the water spraying mechanism. After the rainwater in the garden is collected, the precipitated rainwater enters the water tank through the input pipe. At this time, the staff starts the motor to make the water flow in the water tank enter the output pipe through the extrusion force, and the water flow in the output pipe enters the sprinkler head. This design achieves the effect of secondary utilization of the collected rainwater and reduces the waste of water resources.

[0018] 3. The present invention cooperates with the components such as the electric telescopic rod, the internal cleaning brush and the collection box of the cleaning mechanism. When the collection mechanism is used for a long time, debris filtered from rainwater will accumulate on the surfaces of the first filter plate and the second filter plate, thereby blocking the holes of the first filter plate and the second filter plate. At this time, the staff starts the electric telescopic rod to clean the second filter plate during the process of moving the internal cleaning brush from left to right, and at the same time, cleans the first filter plate during the process of moving the external cleaning brush from left to right. The debris inside the shell is cleaned to the inside of the collection box in the collection tank by the internal cleaning brush. This design achieves the effect of cleaning the filter plate and effectively prevents the debris from blocking the holes of the filter plate and affecting the normal operation of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of the three-dimensional appearance of the present invention from a first viewing angle; Figure 2 It is a schematic structural diagram of a three-dimensional cross-section of the present invention from a first viewing angle; Figure 3 It is a schematic structural diagram of a three-dimensional cross-section of the present invention from a second viewing angle; Figure 4 For the present invention Figure 2 A is a schematic diagram of the three-dimensional enlarged structure; Figure 5 For the present invention Figure 2Schematic diagram of the three-dimensional enlarged structure of B; Figure 6 For the present invention Figure 3 Schematic diagram of the three-dimensional magnified structure of C; Figure 7 For the present invention Figure 3 The three-dimensional enlarged structural diagram of D in the middle; Figure 8 For the present invention Figure 3 Schematic diagram of the three-dimensional enlarged structure in E.

[0021] In the figure: 1, shell; 2, first filter plate; 3, collecting mechanism; 31, motor; 32, threaded rod; 33, threaded sleeve; 34, moving rod; 35, water-blocking plate; 36, moving groove; 37, baffle; 38, second filter plate; 39, isolation plate; 310, moving block; 311, L-shaped telescopic rod; 312, detection chamber; 313, floating rod; 314, floating block; 315, adjusting groove; 316, adjusting rod; 317, first limit plate; 318, second limit plate; 319, limit rod; 4, Water spray mechanism; 41. rotating shaft; 42. gear; 43. slide groove; 44. sliding column; 45. rack; 46. connecting rod; 47. push plate; 48. water tank; 49. input pipe; 410. output pipe; 411. water spray head; 412. extrusion plate; 413. force rod; 414. reset spring; 5. cleaning mechanism; 51. electric telescopic rod; 52. cleaning rod; 53. slide groove; 54. internal cleaning brush; 55. cleaning telescopic rod; 56. external cleaning brush; 57. collecting trough; 58. collecting box. DETAILED DESCRIPTION The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1 like Figures 1 to 8 As shown, this embodiment proposes a filtering device for collecting garden rainwater based on a sponge city, comprising a housing 1, a first filter plate 2 is fixedly connected to the top of the housing 1, and a collecting mechanism 3 is arranged inside the housing 1; The collecting mechanism 3 includes a motor 31, the bottom of which is fixedly connected to the inner wall of the shell 1, the output shaft of the motor 31 is fixedly connected to a threaded rod 32, the circumferential surface of the threaded rod 32 is threadedly connected to a threaded sleeve 33, the side of the threaded sleeve 33 is fixedly connected to a moving rod 34, the inside of the shell 1 is fixedly connected to a water-blocking plate 35, the side of the water-blocking plate 35 is provided with a moving groove 36, the inside of the moving groove 36 is slidingly connected to the side of the moving rod 34, the end of the moving rod 34 away from the side of the threaded sleeve 33 is fixedly connected to a baffle 37, the top of the water-blocking plate 35 is fixedly connected to a second filter plate 38, and the top of the water-blocking plate 35 is fixedly connected to an isolation plate 39.

[0023] The circumferential surface of the threaded rod 32 is threadedly connected with a moving block 310, and the side of the moving block 310 is fixedly connected with an L-shaped telescopic rod 311, and a detection chamber 312 is arranged on the side of the water-blocking plate 35, and the side of the L-shaped telescopic rod 311 is fixedly connected with a floating rod 313, and the bottom of the floating rod 313 is fixedly connected with a floating block 314, and the side of the floating block 314 is slidably connected to the inside of the detection chamber 312, and an adjustment groove 315 is provided on the top of the first filter plate 2, and the internal sliding connection of the adjustment groove 315 is connected with an adjusting rod 316, and the side of the L-shaped telescopic rod 311 is fixedly connected with a floating rod 313, and the function of the floating rod 313 is to drive the L-shaped telescopic rod 311 to move through the floating rod 313, and the internal sliding connection of the adjustment groove 315 is to expand the hole of the first filter plate 2 through the adjusting rod 316.

[0024] The circumferential surface of the threaded rod 32 is fixedly penetrated by a first limit plate 317, the circumferential surface of the threaded rod 32 is fixedly penetrated by a second limit plate 318, a limiting rod 319 is fixed on the side of the motor 31, the circumferential surface of the limiting rod 319 penetrates the side of the threaded sleeve 33, and is slidingly connected to the side of the threaded sleeve 33, the circumferential surface of the threaded rod 32 is fixedly penetrated by the first limit plate 317 to limit the displacement distance of the moving block 310, the circumferential surface of the threaded rod 32 is fixedly penetrated by the second limit plate 318 to limit the displacement distance of the threaded sleeve 33.

[0025] The material of the first filter plate 2 is set to rubber material, and the top of the baffle 37 is located at the bottom of the first filter plate 2. The material of the first filter plate 2 is set to rubber material so that the first filter plate 2 can be deformed through the characteristics of the rubber material when a force is applied, and the top of the baffle 37 is located at the bottom of the first filter plate 2 so that when the collecting mechanism 3 is not in use, the baffle 37 can block the hole of the first filter plate 2.

[0026] In this embodiment, when normal rainy weather occurs and rainwater from the garden needs to be collected, the staff starts the motor 31, and the output shaft of the motor 31 rotates clockwise. The clockwise rotation of the output shaft of the motor 31 drives the threaded rod 32 to rotate clockwise, and the threaded sleeve 33 threadedly connected to the circumferential surface of the threaded rod 32 moves from left to right. The threaded sleeve 33 moves from left to right and drives the baffle 37 to move from left to right through the moving rod 34. During the movement of the baffle 37 from left to right, the baffle 37 coincides with the hole of the first filter plate 2, and then the hole of the first filter plate 2 is opened, so that the rainwater passes through the first filter plate 2 for the first filtration and enters the shell 1. Then the rainwater filtered for the first time passes through the second filter plate 38, and the filtered rainwater enters the side of the isolation plate 39. When heavy rain occurs, the water flow rate through the first filter plate 2 is too slow, and the water in the water storage area inside the shell 1 accumulates and flows into the detection chamber 312. At this time, the floating block 314 inside the detection chamber 312 floats upward, and the floating block 314 floats upward and drives the L-shaped telescopic rod 311 to extend upward through the floating rod 313, so that the L-shaped telescopic rod 311 and the adjusting rod 316 are connected. At the same time, the moving block 310 threadedly connected to the circumferential surface of the threaded rod 32 moves from left to right. The moving block 310 moves from left to right and drives the adjusting rod 316 to move from left to right in the adjusting groove 315 through the L-shaped telescopic rod 311. During the movement of the adjusting rod 316 from left to right, the hole of the first filter plate 2 made of rubber is stretched and expanded, so a large amount of garden rainwater is collected.

[0027] Example 2 like Figure 1 to Figure 6As shown, based on the same concept as the above-mentioned embodiment 1, a second embodiment is also proposed, a water spray mechanism 4 is arranged inside the shell 1, the water spray mechanism 4 includes a rotating shaft 41, the side of the rotating shaft 41 is fixedly connected to the end of the threaded rod 32 away from the output shaft of the motor 31, a gear 42 is fixedly penetrated through the circumferential surface of the rotating shaft 41, a slide groove 43 is provided on the inner wall of the shell 1, a sliding column 44 is slidably connected to the inside of the slide groove 43, the end of the sliding column 44 away from the inside of the slide groove 43 is fixedly connected to a rack 45, the side of the rack 45 is fixedly connected to a connecting rod 46, the side of the connecting rod 46 penetrates the side of the water baffle 35, and is slidably connected to the side of the water baffle 35, one end of the connecting rod 46 is fixed A push plate 47 is connected, a water tank 48 is fixedly connected to the inner wall of the shell 1, an input pipe 49 is fixedly penetrated through the top of the water tank 48, an output pipe 410 is fixedly penetrated through the side of the water tank 48, the side of the output pipe 410 is fixedly penetrated with the side of the shell 1, one end of the output pipe 410 is fixedly connected to a sprinkler head 411, an extrusion plate 412 is slidably connected inside the water tank 48, a force-bearing rod 413 is fixedly connected to the side of the extrusion plate 412, the circumferential surface of the force-bearing rod 413 penetrates the side of the water tank 48, and is slidably connected to the side of the water tank 48, a water spray mechanism 4 is arranged inside the shell 1, and its function is to secondary utilize the clean rainwater collected and filtered and precipitated by the collecting mechanism 3 through the water spray mechanism 4.

[0028] A return spring 414 is fixedly connected to the side of the water tank 48, and one end of the return spring 414 away from the side of the water tank 48 is fixedly connected to the circumferential surface of the force-bearing rod 413. The function of the return spring 414 being fixedly connected to the circumferential surface of the force-bearing rod 413 at one end away from the side of the water tank 48 is that when the force-bearing rod 413 is not under force, it is reset by the elasticity of the return spring 414.

[0029] The circumferential surface of the gear 42 and the side surface of the rack 45 are meshed with each other, and one end of the force rod 413 is located on the displacement trajectory of the push plate 47. The role of the mutual meshing of the circumferential surface of the gear 42 and the side surface of the rack 45 is to ensure that the gear 42 can drive the rack 45 to move when it rotates, and the role of one end of the force rod 413 being located on the displacement trajectory of the push plate 47 is to ensure that the push plate 47 can push the force rod 413 during the movement.

[0030] A cleaning mechanism 5 is provided on the side of the shell 1, and the cleaning mechanism 5 includes an electric telescopic rod 51, the side of the electric telescopic rod 51 is fixedly connected to the side of the shell 1, and the telescopic end of the electric telescopic rod 51 is fixedly connected to a cleaning rod 52. A sliding groove 53 is provided on the side of the shell 1, and the interior of the sliding groove 53 is slidably connected to the side of the cleaning rod 52. An end of the cleaning rod 52 away from the telescopic end of the electric telescopic rod 51 is fixedly connected to an internal cleaning brush 54, and the telescopic end of the electric telescopic rod 51 is fixedly connected to a cleaning telescopic rod 55, and an end of the cleaning telescopic rod 55 away from the telescopic end of the electric telescopic rod 51 is fixedly connected to an external cleaning brush 56. The cleaning mechanism 5 is provided on the side of the shell 1 to clean the first filter plate 2 and the second filter plate 38 respectively through the internal cleaning brush 54 and the external cleaning brush 56 to prevent debris from blocking the hole.

[0031] A collecting groove 57 is provided on the side of the housing 1 , and a collecting box 58 is slidably connected inside the collecting groove 57 . The collecting box 58 is slidably connected inside the collecting groove 57 to collect the debris cleaned by the internal cleaning brush 54 .

[0032] The top of the collection box 58 is located below the internal cleaning brush 54 . The top of the collection box 58 is located below the internal cleaning brush 54 to ensure that the debris cleaned by the internal cleaning brush 54 can accurately fall into the collection box 58 .

[0033] In this embodiment, after the rainwater in the garden is collected, the rainwater after filtering and settling inside the shell 1 is reused for a second time, and the settled rainwater enters the water tank 48 through the input pipe 49. At this time, the staff starts the motor 31, and the output shaft of the motor 31 rotates clockwise. The output shaft of the motor 31 rotates clockwise to drive the threaded rod 32 to rotate clockwise, and the rotating shaft 41 fixed at one end of the threaded rod 32 rotates clockwise with the threaded rod 32. The clockwise rotation of the rotating shaft 41 drives the gear 42 to rotate clockwise, because the gear The wheel 42 and the rack 45 mesh with each other, so the gear 42 rotates clockwise to drive the rack 45 to move from right to left inside the slide groove 43 through the sliding column 44, and the rack 45 moves from right to left and drives the push plate 47 to move from right to left through the connecting rod 46. During the movement of the push plate 47 from right to left, the force rod 413 is pushed. The thrust of the force rod 413 drives the extrusion plate 412 to squeeze from right to left inside the water tank 48. During the movement of the extrusion plate 412 from right to left, the water inside the water tank 48 is squeezed. The water in the water tank 48 enters the output pipe 410 through the extrusion force, and the water in the output pipe 410 enters the sprinkler head 411, so that the clean water after precipitation is sprayed out for secondary use. When the collecting mechanism 3 is used for a long time, the surfaces of the first filter plate 2 and the second filter plate 38 will accumulate debris filtered in the rainwater, thereby blocking the holes of the first filter plate 2 and the second filter plate 38. At this time, the staff starts the electric telescopic rod 51, and the telescopic end of the electric telescopic rod 51 is telescoped from left to right. The telescopic end of the electric telescopic rod 51 is telescoped from left to right and drives the internal cleaning brush 54 to move from left to right through the cleaning rod 52. During the movement of the internal cleaning brush 54 from left to right, the second filter plate 38 is cleaned. At the same time, the telescopic end of the electric telescopic rod 51 is telescoped from left to right and drives the external cleaning brush 56 to move from left to right through the cleaning telescopic rod 55. During the movement of the external cleaning brush 56 from left to right, the first filter plate 2 is cleaned. The debris inside the housing 1 is cleaned to the inside of the collection box 58 in the collecting tank 57 by the internal cleaning brush 54.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A garden rainwater collection and filtering device based on a sponge city, characterized in that: It comprises a shell (1), a first filter plate (2) is fixedly connected to the top of the shell (1), and a collecting mechanism (3) is arranged inside the shell (1); The collecting mechanism (3) comprises a motor (31), the bottom of the motor (31) is fixedly connected to the inner wall of the shell (1), the output shaft of the motor (31) is fixedly connected to a threaded rod (32), the circumferential surface of the threaded rod (32) is threadedly connected to a threaded sleeve (33), the side of the threaded sleeve (33) is fixedly connected to a moving rod (34), the inside of the shell (1) is fixedly connected to a water baffle (35), the side of the water baffle (35) is provided with a moving groove (36), the inside of the moving groove (36) is slidably connected to the side of the moving rod (34), the end of the moving rod (34) away from the side of the threaded sleeve (33) is fixedly connected to a baffle (37), the top of the water baffle (35) is fixedly connected to a second filter plate (38), and the top of the water baffle (35) is fixedly connected to an isolation plate (39).

2. A garden rainwater collection and filtering device based on a sponge city according to claim 1, characterized in that: The circumferential surface of the threaded rod (32) is threadedly connected to a moving block (310), the side of the moving block (310) is fixedly connected to an L-shaped telescopic rod (311), the side of the water-blocking plate (35) is provided with a detection chamber (312), the side of the L-shaped telescopic rod (311) is fixedly connected to a floating rod (313), the bottom of the floating rod (313) is fixedly connected to a floating block (314), the side of the floating block (314) is slidably connected to the inside of the detection chamber (312), the top of the first filter plate (2) is provided with an adjustment groove (315), and the inside of the adjustment groove (315) is slidably connected to an adjustment rod (316).

3. A garden rainwater collection and filtering device based on a sponge city according to claim 2, characterized in that: A first limiting plate (317) is fixedly passed through the circumferential surface of the threaded rod (32), a second limiting plate (318) is fixedly passed through the circumferential surface of the threaded rod (32), a limiting rod (319) is fixedly passed through the side surface of the motor (31), and the circumferential surface of the limiting rod (319) passes through the side surface of the threaded sleeve (33) and is slidably connected to the side surface of the threaded sleeve (33).

4. A garden rainwater collection and filtering device based on a sponge city according to claim 3, characterized in that: The material of the first filter plate (2) is set to be a rubber material, and the top of the baffle (37) is located at the bottom of the first filter plate (2).

5. A garden rainwater collection and filtering device based on a sponge city according to claim 4, characterized in that: A water spray mechanism (4) is arranged inside the shell (1), and the water spray mechanism (4) includes a rotating shaft (41), the side of the rotating shaft (41) is fixedly connected to the end of the threaded rod (32) away from the output shaft of the motor (31), and a gear (42) is fixedly penetrated through the circumferential surface of the rotating shaft (41), and a sliding groove (43) is provided on the inner wall of the shell (1), and a sliding column (44) is slidably connected inside the sliding groove (43), and the end of the sliding column (44) away from the inside of the sliding groove (43) is fixedly connected to a rack (45), and the side of the rack (45) is fixedly connected to a connecting rod (46), and the side of the connecting rod (46) penetrates the side of the water baffle (35) and is slidably connected to the side of the water baffle (35). One end of the connecting rod (46) is fixedly connected to a push plate (47), the inner wall of the shell (1) is fixedly connected to a water tank (48), the top of the water tank (48) is fixedly penetrated by an input pipe (49), the side of the water tank (48) is fixedly penetrated by an output pipe (410), the side of the output pipe (410) is fixedly penetrated by the side of the shell (1), one end of the output pipe (410) is fixedly connected to a water spray head (411), the interior of the water tank (48) is slidably connected to an extrusion plate (412), the side of the extrusion plate (412) is fixedly connected to a force-bearing rod (413), the circumferential surface of the force-bearing rod (413) penetrates the side of the water tank (48), and is slidably connected to the side of the water tank (48).

6. A garden rainwater collection and filtering device based on a sponge city according to claim 5, characterized in that: A return spring (414) is fixedly connected to the side of the water tank (48), and one end of the return spring (414) away from the side of the water tank (48) is fixedly connected to the circumferential surface of the force-bearing rod (413).

7. The garden rainwater collection and filtering device based on sponge city according to claim 6 is characterized in that: The circumferential surface of the gear (42) and the side surface of the rack (45) are meshed with each other, and one end of the force-bearing rod (413) is located on the displacement track of the push plate (47).

8. The garden rainwater collection and filtering device based on sponge city according to claim 7 is characterized in that: A cleaning mechanism (5) is provided on the side of the housing (1), and the cleaning mechanism (5) comprises an electric telescopic rod (51), the side of the electric telescopic rod (51) is fixedly connected to the side of the housing (1), the telescopic end of the electric telescopic rod (51) is fixedly connected to a cleaning rod (52), a sliding groove (53) is provided at the beginning of the side of the housing (1), the interior of the sliding groove (53) is slidably connected to the side of the cleaning rod (52), an end of the cleaning rod (52) away from the telescopic end of the electric telescopic rod (51) is fixedly connected to an internal cleaning brush (54), the telescopic end of the electric telescopic rod (51) is fixedly connected to a cleaning telescopic rod (55), and an end of the cleaning telescopic rod (55) away from the telescopic end of the electric telescopic rod (51) is fixedly connected to an external cleaning brush (56).

9. The garden rainwater collection and filtering device based on sponge city according to claim 8 is characterized in that: A collecting groove (57) is provided on the side of the housing (1), and a collecting box (58) is slidably connected inside the collecting groove (57).

10. The garden rainwater collection and filtering device based on sponge city according to claim 9 is characterized in that: The top of the collection box (58) is located below the internal cleaning brush (54).

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