Rainwater collecting and purifying device

Abstract

The invention relates to the technical field of rainwater collection, in particular to a rainwater collection and purification device. A mounting block is integrally formed on the surface of the collecting box, a collecting groove is formed in the inner bottom surface of the collecting box, and a discharging groove is formed in the bottom surface of the collecting groove; a rotating structure is installed on the inner side of the collecting box and comprises a water guide pipe, the water guide pipe is fixedly installed in the middle of the inner side of the collecting box, a water inlet is formed in the top face of the water guide pipe, a rotating block is movably installed in the middle of the inner side of the collecting box, and a discharging opening is formed in the surface of the rotating block. And a filter screen is mounted on the inner side of the discharging opening. By arranging the rotatable rotating block, four sets of filter screens can be driven to rotate to adjust the angle, when the filter screens are inverted, the filter screens can be immersed in rainwater in the collecting tank, impurities on the surfaces of the filter screens can be comprehensively cleaned in cooperation with a brush plate and a knocking rod, the effect is better, and the follow-up use experience of the filter screens can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of rainwater collection, in particular to a rainwater collection and purification device. Background Art

[0002] Due to the hardening of the road surface caused by the construction of urban roofs, roads, and ground facilities, most rainfall cannot penetrate into the ground and forms surface runoff on the hard road surface. At present, urban surface rainwater is mainly collected and discharged by the municipal rainwater pipe network, which generally does not have the functions of rainwater purification and rainwater storage, and cannot reuse rainwater resources, which is not conducive to the maintenance of the ecological environment.

[0003] In this regard, China applied for patent number: CN202310862892.5, which discloses a road rainwater collection and purification device, including a collection box, a partition wall, a first filter plate, a second filter plate, a third filter plate, a sliding plate, a first water storage cylinder, a second water storage cylinder, two top opening rods, two backwashing pipelines and two debris collection cylinders; the first filter plate and the second filter plate are respectively rotatably connected to the top of the two debris collection cylinders; a water storage tank is provided at the top of the partition wall, and a support plate is fixedly connected to the water storage tank; the third filter plate is rotatably connected to the top of the support plate; the first water storage cylinder and the second water storage cylinder are respectively suspended at both ends of the third filter plate; the bottom ends of the first water storage cylinder and the second water storage cylinder are both provided with blocking parts; the top opening rod is fixedly connected to the inner wall of the water storage tank; and the two backwashing pipelines are respectively arranged inside the top of the partition wall. This application realizes the ability to filter rainwater and automatically clean the impurities after filtering, without the need to manually clean or replace the filter net, reducing the labor intensity of workers.

[0004] By setting a sliding plate, the device can alternately clean the debris on both ends of the third filter plate during the reciprocating swing of the third filter plate. However, in actual use, not all the debris filtered by the third filter plate is located on the top surface, and some of the debris will be stuck in the holes on the surface of the third filter plate. Therefore, it is difficult to cope with different usage scenarios only by using a sliding plate that moves in a straight line, which makes the use of the device have great limitations.

[0005] Therefore, in order to solve the above problems, a rainwater collection and purification device is proposed. Summary of the invention

[0006] The object of the present invention is to provide a rainwater collection and purification device to solve the problem that the device in the prior art proposed in the above background technology can alternately clean the debris at both ends of the third filter plate during the reciprocating swinging of the third filter plate by setting a sliding plate, but in actual use, the debris filtered by the third filter plate will not all be located on the top surface, and some of the debris will be stuck in the holes on the surface of the third filter plate. Therefore, it is difficult to cope with different usage scenarios only by using a sliding plate that moves in a straight line, which makes the use of the device have great limitations.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rainwater collection and purification device, comprising: a collection box;

[0008] The surface of the collecting box is integrally formed with a mounting block, the inner bottom surface of the collecting box is provided with a collecting groove, and the bottom surface of the collecting groove is provided with a discharge groove;

[0009] A rotating structure is installed on the inner side of the collecting box, and the rotating structure includes a water pipe, and the water pipe is fixedly installed in the middle part of the inner side of the collecting box, and a water inlet is provided on the top surface of the water pipe. A rotating block is movably installed in the middle part of the inner side of the collecting box, and a discharge port is provided on the surface of the rotating block. A filter is installed on the inner side of the discharge port, and a worm ring is welded on the outer wall of the rotating block. A worm is movably installed on the inner side of the collecting box through a bearing, and a motor is fixedly installed on the outer wall of the collecting box.

[0010] Preferably, a cleaning structure is installed on the inner side of the collecting trough, and the cleaning structure includes a motor, the motor is fixedly installed on the bottom surface of the collecting box, a brush plate and a knocking rod are slidably installed on the output end of the motor, a first wedge block is fixedly installed on the left end of the brush plate, a first spring is fixedly connected to the output end of the motor, a second spring is fixedly connected to the inner side of the knocking rod, a second wedge block is fixedly installed on the outer wall of the knocking rod, a fixed convex ring is fixedly installed on the bottom surface of the collecting trough, and a rotating convex ring is fixedly installed on the bottom surface of the brush plate.

[0011] Preferably, a material discharge structure is installed on the collection box, and the material discharge structure includes a spool, and the spool is movably installed inside the mounting block through a rotating shaft. A push block is integrally formed in the middle of the spool, and a pull rope is wound on the spool. A guide wheel is fixedly installed on the outer wall of the collection box, one end of the pull rope is fixedly connected to a baffle, and a third spring is fixedly connected to the surface of the baffle.

[0012] Preferably, the rotating block is sleeved on the outside of the water pipe, and the rotating block and the water pipe are movably connected through a bearing. The feed port and the filter are respectively provided with four groups, and the four groups of feed ports are distributed in a circular shape on the surface of the rotating block. The feed port and the water inlet cooperate with each other, and the output end of the motor is fixedly connected to the worm, and the worm is meshed with the worm wheel ring.

[0013] Preferably, the brush plate is located on the inner side of the collecting trough, the top of the brush plate fits against the surface of the filter screen, the first wedge block and the second wedge block cooperate with each other, and one end of the first spring is fixedly connected to the brush plate.

[0014] Preferably, the knocking rod is located on one side of the brush plate, the top end of the knocking rod abuts against the surface of the filter, one end of the second spring is fixedly connected to the brush plate, the rotating convex ring is sleeved on the outside of the fixed convex ring, and the rotating convex ring and the fixed convex ring cooperate with each other.

[0015] Preferably, the push block is installed at an angle, the push block abuts against the surface of the rotating block, a coil spring is provided at the connection between the spool and the mounting block, and the middle part of the pull rope is sleeved on the surface of the guide wheel.

[0016] Preferably, the baffle is located on the inner side of the discharge chute, and one end of the third spring is fixedly connected to the inner wall of the collection box.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can drive four groups of filter screens to rotate to adjust the angle by setting a rotatable rotating block. When the filter screen is inverted, it can be immersed in the rainwater in the collection trough. The brush plate and the knocking rod can be used to comprehensively clean the debris on the surface of the filter screen, which has a better effect and can ensure the subsequent use experience of the filter screen.

[0018] A rotating structure, a cleaning structure and a feeding structure are provided. The motor is started to drive the worm to rotate, and the worm is meshed with the worm gear ring. The rotation of the worm drives the rotating block to rotate counterclockwise through the worm gear ring. When the rotating block rotates inside the collecting box, the debris on the top surface of the filter screen is located between the filter screen and the inner wall of the collecting box, and moves downward along with the rotation of the rotating block. At the same time, the rainwater entering the collecting box at this time can be temporarily retained on the inner side of the feeding port. When the filter screen is inverted following the rotation of the rotating block, the filter screen is located on the inner side of the collecting trough, and the rainwater temporarily retained on the inner side of the feeding port can flow downward to the surface of the filter screen and be collected in the collecting trough. The surface of the filter screen can be backwashed, and the filter screen is immersed in the rainwater in the feeding port and the collecting trough.

[0019] Start the motor, and the motor drives the brush plate to rotate. The rotating brush plate can scrape and clean the surface of the filter in a circular direction. When the brush plate rotates, it drives the rotating convex ring on the bottom surface to rotate relative to the fixed convex ring. When the convexity on the inner wall of the rotating convex ring fits with the convexity on the outer wall of the fixed convex ring, the brush plate will slide at the output end of the motor and squeeze the first spring, and the brush plate drives the first wedge block to move closer to the knocking rod. The first wedge block pushes the second wedge block, so that the knocking rod drops on the surface of the brush plate away from the filter and squeezes the second spring. When the convexity on the inner wall of the rotating convex ring fits with the convexity on the outer wall of the fixed convex ring, the knocking rod moves downward on the surface of the brush plate away from the filter and squeezes the second spring. When the protrusion on the outer wall of the ring is separated, the brush plate will be reset under the action of the first spring, so that the brush plate will reciprocate in a straight line direction, which can increase the cleaning frequency of the filter surface, and cooperate with rainwater to ensure the cleaning effect of the filter surface. The brush plate drives the first wedge block away from the knocking rod, and the second wedge block loses the contact with the first wedge block. The knocking rod will be reset and raised under the elastic action of the second spring, and the knocking rod moves in a circular trajectory and continuously hits the edge of the filter upward, which can shake off the debris stuck on the filter surface, and can further improve the cleaning effect of the filter.

[0020] At the same time, when the rotating block is rotating, the edge of the rotating block can push the pushing block, and the pushing block drives the spool to rotate, the spool lengthens the pull rope, and the baffle is reset in the discharge trough under the action of the third spring, and the discharge trough is blocked, which is convenient for collecting rainwater in the collection trough. As the rotating block rotates, the filter screen approaches the pushing block. Since the filter screen is flat and does not contact the inner wall of the collection box, there is space between the filter screen and the inner wall of the collection box. Therefore, the filter screen cannot push the pushing block, and the pushing block will be reset under the action of the winding spring, the spool will reverse, and the pull rope will be wound on the spool, and the pull rope will pull the baffle to move the baffle away from the inside of the discharge trough to facilitate the discharge of rainwater mixed with debris in the collection trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic front view of the structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the structure of the present invention;

[0023] Figure 3 It is a schematic front cross-sectional view of the structure of the rotating block of the present invention;

[0024] Figure 4 It is a front cross-sectional schematic diagram of the structure of the rotating block and the collecting box of the present invention;

[0025] Figure 5 It is a schematic front view of the cleaning structure and the material discharging structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure explosion of the cleaning structure of the present invention;

[0027] Figure 7This is a schematic diagram of the structure explosion of the brush plate of the present invention;

[0028] Figure 8 It is a schematic top view of the structure of the fixed convex ring and the rotating convex ring of the present invention.

[0029] In the figure: 1. collecting box; 11. mounting block; 12. collecting trough; 13. discharging trough; 2. rotating structure; 21. water guide pipe; 22. water inlet; 23. rotating block; 24. filter screen; 25. discharge port; 26. worm gear ring; 27. worm; 28. motor; 3. cleaning structure; 31. motor; 32. brush plate; 33. first wedge block; 34. first spring; 35. knocking rod; 36. second spring; 37. second wedge block; 38. fixed convex ring; 39. rotating convex ring; 4. discharge structure; 41. spool; 42. push block; 43. pull rope; 44. guide wheel; 45. baffle; 46. third spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in 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.

[0031] See also Figure 1-Figure 8 , an embodiment provided by the present invention:

[0032] The collection box 1, motor 28 and motor 31 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described here in detail.

[0033] A rainwater collection and purification device comprises: a collection box 1;

[0034] The surface of the collecting box 1 is integrally formed with a mounting block 11, the inner bottom surface of the collecting box 1 is provided with a collecting groove 12, and the bottom surface of the collecting groove 12 is provided with a discharge groove 13;

[0035] A rotating structure 2 is installed on the inner side of the collecting box 1, and the rotating structure 2 includes a water pipe 21, which is fixedly installed in the middle of the inner side of the collecting box 1. A water inlet 22 is provided on the top surface of the water pipe 21, and a rotating block 23 is movably installed in the middle of the inner side of the collecting box 1. A discharge port 25 is provided on the surface of the rotating block 23, and a filter screen 24 is installed on the inner side of the discharge port 25. A worm ring 26 is welded on the outer wall of the rotating block 23, and a worm 27 is movably installed on the inner side of the collecting box 1 through a bearing. A motor 28 is fixedly installed on the outer wall of the collecting box 1. The rotating block 23 is rotatable and can drive four groups of filter screens 24 to rotate to adjust the angle. When the filter screen 24 is inverted, it can be immersed in the rainwater in the collecting tank 12. The brush plate 32 and the knocking rod 35 can be used to comprehensively clean the debris on the surface of the filter screen 24, which has a better effect and can ensure the subsequent use experience of the filter screen 24.

[0036] Furthermore, a cleaning structure 3 is installed on the inner side of the collecting trough 12, and the cleaning structure 3 includes a motor 31, which is fixedly installed on the bottom surface of the collecting box 1, and a brush plate 32 and a knocking rod 35 are slidably installed on the output end of the motor 31, and a first wedge block 33 is fixedly installed on the left end of the brush plate 32, and a first spring 34 is fixedly connected to the output end of the motor 31, and a second spring 36 is fixedly connected to the inner side of the knocking rod 35, and a second wedge block 37 is fixedly installed on the outer wall of the knocking rod 35, a fixed convex ring 38 is fixedly installed on the bottom surface of the collecting trough 12, and a rotating convex ring 39 is fixedly installed on the bottom surface of the brush plate 32. The cleaning structure 3 can be used to clean up the debris on the surface of the inverted filter screen 24, and the cleaning effect is better, which can ensure the filtering effect of the filter screen 24.

[0037] Furthermore, a material discharge structure 4 is installed on the collecting box 1, and the material discharge structure 4 includes a spool 41, which is movably installed inside the mounting block 11 through a rotating shaft, a push block 42 is integrally formed in the middle of the spool 41, a pull rope 43 is wound on the spool 41, and a guide wheel 44 is fixedly installed on the outer wall of the collecting box 1, one end of the pull rope 43 is fixedly connected to a baffle 45, and a third spring 46 is fixedly connected to the surface of the baffle 45. The material discharge structure 4 can operate when the rotating block 23 moves to drive the baffle 45 to move in the discharge trough 13, so as to realize the opening and closing of the inside of the discharge trough 13, so as to facilitate the collection of rainwater or drainage inside the collecting trough 12.

[0038] Furthermore, the rotating block 23 is sleeved on the outside of the water pipe 21, and the rotating block 23 is movably connected to the water pipe 21 through a bearing. Four groups of feed ports 25 and filter screens 24 are respectively provided. The four groups of feed ports 25 are distributed in a circular shape on the surface of the rotating block 23. The feed ports 25 and the water inlet 22 cooperate with each other. The output end of the motor 28 is fixedly connected to the worm 27, and the worm 27 is meshed with the worm gear ring 26. The motor 28 provides power for the rotation of the worm 27. The rotation of the worm 27 can drive the rotating block 23 to rotate through the worm gear ring 26. The rotating block 23 can rotate outside the water pipe 21. The rotation of the rotating block 23 can adjust the position of the four groups of filter screens 24.

[0039] Furthermore, the brush plate 32 is located on the inner side of the collecting trough 12, the top of the brush plate 32 is fitted with the surface of the filter screen 24, the first wedge block 33 and the second wedge block 37 cooperate with each other, one end of the first spring 34 is fixedly connected to the brush plate 32, and the brush plate 32 can clean the surface of the filter screen 24 on the inner side of the collecting trough 12. The movement of the brush plate 32 can drive the first wedge block 33 to move relative to the second wedge block 37 on the knocking rod 35. When the first wedge block 33 abuts against the second wedge block 37, the knocking rod 35 can be driven to drop away from the filter screen 24. When the first wedge block 33 is separated from the second wedge block 37, the knocking rod 35 can hit the bottom surface of the filter screen 24 under the action of the second spring 36, causing the filter screen 24 to vibrate, and the first spring 34 provides power for resetting the brush plate 32 on the motor 31.

[0040] Furthermore, the knocking rod 35 is located on one side of the brush plate 32, the top end of the knocking rod 35 abuts against the surface of the filter screen 24, one end of the second spring 36 is fixedly connected to the brush plate 32, the rotating convex ring 39 is sleeved on the outer side of the fixed convex ring 38, the rotating convex ring 39 and the fixed convex ring 38 cooperate with each other, when the first wedge block 33 abuts against the second wedge block 37, the knocking rod 35 can be driven to move down away from the filter screen 24, and when the first wedge block 33 is separated from the second wedge block 37, the knocking rod 35 can be knocked under the action of the second spring 36. The bottom surface of the filter 24 is hit to make the filter 24 vibrate. When the protrusion on the inner wall of the rotating convex ring 39 fits with the protrusion on the outer wall of the fixed convex ring 38, the brush plate 32 will slide at the output end of the motor 31. When the protrusion on the inner wall of the rotating convex ring 39 is separated from the protrusion on the outer wall of the fixed convex ring 38, the brush plate 32 will be reset under the action of the first spring 34, so that the brush plate 32 moves back and forth in a straight line, which can increase the cleaning frequency of the surface of the filter 24 and ensure the cleaning effect of the surface of the filter 24 in combination with rainwater.

[0041] Furthermore, the push block 42 is installed at an angle, and the push block 42 abuts against the surface of the rotating block 23. A coil spring is provided at the connection between the spool 41 and the mounting block 11. The middle part of the pull rope 43 is sleeved on the surface of the guide wheel 44. The movement of the rotating block 23 can push the push block 42, so that the spool 41 rotates, and the coil spring provides power for resetting the spool 41.

[0042] Furthermore, the baffle 45 is located on the inner side of the discharge trough 13, and one end of the third spring 46 is fixedly connected to the inner wall of the collecting box 1. The movement of the baffle 45 in the discharge trough 13 can open and close the discharge trough 13, and the third spring 46 provides power for resetting the baffle 45 in the discharge trough 13.

[0043] Working principle: Rainwater enters the inner side of the collection box 1 through the upper end, and the filter screen 24 can filter the rainwater. The rainwater passes through the filter screen 24 and enters the water pipe 21 through the feed port 25 and the water inlet 22, and the debris accumulates on the top surface of the filter screen 24;

[0044] The motor 28 is started to drive the worm 27 to rotate, and the worm 27 is meshed with the worm gear ring 26. The rotation of the worm 27 drives the rotating block 23 to rotate counterclockwise through the worm gear ring 26. When the rotating block 23 rotates inside the collecting box 1, the debris on the top surface of the filter screen 24 is located between the filter screen 24 and the inner wall of the collecting box 1, and moves downward along with the rotation of the rotating block 23. At the same time, the rainwater entering the collecting box 1 at this time can be temporarily retained on the inner side of the discharge port 25. When the filter screen 24 is inverted following the rotation of the rotating block 23, the filter screen 24 is located on the inner side of the collecting tank 12, and the rainwater temporarily retained on the inner side of the discharge port 25 can flow downward to the surface of the filter screen 24 and be collected in the collecting tank 12. The surface of the filter screen 24 can be backwashed, and the filter screen 24 is immersed in the rainwater in the discharge port 25 and the collecting tank 12.

[0045] Start the motor 31, which drives the brush plate 32 to rotate. The rotating brush plate 32 can scrape and clean the surface of the filter screen 24 in a circumferential direction. When the brush plate 32 rotates, it drives the rotating convex ring 39 on the bottom surface to rotate relative to the fixed convex ring 38. When the protrusion on the inner wall of the rotating convex ring 39 fits with the protrusion on the outer wall of the fixed convex ring 38, the brush plate 32 will slide at the output end of the motor 31 and squeeze the first spring 34. The brush plate 32 drives the first wedge block 33 to move closer to the knocking rod 35. The first wedge block 33 pushes the second wedge block 37, so that the knocking rod 35 drops away from the filter screen 24 on the surface of the brush plate 32 and squeezes the second spring 36. When the inner wall of the rotating convex ring 39 is in contact with the protrusion on the outer wall of the fixed convex ring 38, the brush plate 32 will slide at the output end of the motor 31 and squeeze the first spring 34. When the protrusion is separated from the protrusion on the outer wall of the fixed protruding ring 38, the brush plate 32 will be reset under the action of the first spring 34, so that the brush plate 32 can reciprocate in a straight line direction, which can increase the cleaning frequency of the surface of the filter 24, and cooperate with the rain to ensure the cleaning effect of the surface of the filter 24, and the brush plate 32 drives the first wedge block 33 away from the knocking rod 35, and the second wedge block 37 loses the contact with the first wedge block 33, and the knocking rod 35 will be reset and raised under the elastic action of the second spring 36, and the knocking rod 35 moves in a circular trajectory and continuously hits the edge of the filter 24 upward, which can shake off the debris stuck on the surface of the filter 24, and can further improve the cleaning effect of the filter 24;

[0046] At the same time, during the rotation of the rotating block 23, the edge of the rotating block 23 can push the pushing block 42, and the pushing block 42 will drive the spool 41 to rotate, and the spool 41 will lengthen the pull rope 43, and the baffle 45 will be reset in the discharge groove 13 under the action of the third spring 46, and the discharge groove 13 will be blocked, so that it is convenient for the collection groove 12 to collect rainwater. As the rotating block 23 rotates, the filter screen 24 approaches the pushing block 42. Since the filter screen 24 is a plane and does not contact the inner wall of the collection box 1, there is a space between the filter screen 24 and the inner wall of the collection box 1, so the filter screen 24 cannot push the pushing block 42, and the pushing block 42 will be reset under the action of the winding spring, the spool 41 will reverse, and the pull rope 43 will be wound on the spool 41, and the pull rope 43 will pull the baffle 45, so that the baffle 45 is moved away from the inner side of the discharge groove 13, so as to facilitate the discharge of rainwater mixed with debris in the collection groove 12.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A rainwater collection and purification device, comprising: Collection box (1); Features: The surface of the collection box (1) is integrally formed with a mounting block (11); the inner bottom surface of the collection box (1) is provided with a collection groove (12); and the bottom surface of the collection groove (12) is provided with a discharge groove (13); A rotating structure (2) is installed on the inner side of the collecting box (1), and the rotating structure (2) comprises a water pipe (21). The water pipe (21) is fixedly installed in the middle of the inner side of the collecting box (1), and a water inlet (22) is provided on the top surface of the water pipe (21). A rotating block (23) is movably installed in the middle of the inner side of the collecting box (1), and a discharge port (25) is provided on the surface of the rotating block (23). A filter screen (24) is installed on the inner side of the discharge port (25), and a worm wheel ring (26) is welded on the outer wall of the rotating block (23). A worm (27) is movably installed on the inner side of the collecting box (1) via a bearing, and a motor (28) is fixedly installed on the outer wall of the collecting box (1).

2. A rainwater collection and purification device according to claim 1, characterized in that: A cleaning structure (3) is installed on the inner side of the collecting trough (12), and the cleaning structure (3) comprises a motor (31). The motor (31) is fixedly installed on the bottom surface of the collecting box (1), and a brush plate (32) and a knocking rod (35) are slidably installed on the output end of the motor (31). A first wedge block (33) is fixedly installed on the left end of the brush plate (32), and a first spring (34) is fixedly connected to the output end of the motor (31). A second spring (36) is fixedly connected to the inner side of the knocking rod (35), and a second wedge block (37) is fixedly installed on the outer wall of the knocking rod (35). A fixed convex ring (38) is fixedly installed on the bottom surface of the collecting trough (12), and a rotating convex ring (39) is fixedly installed on the bottom surface of the brush plate (32).

3. A rainwater collection and purification device according to claim 1, characterized in that: The collecting box (1) is provided with a material discharge structure (4), the material discharge structure (4) comprising a bobbin (41), the bobbin (41) being movably mounted inside the mounting block (11) via a rotating shaft, a push block (42) being integrally formed in the middle of the bobbin (41), a pull rope (43) being wound around the bobbin (41), a guide wheel (44) being fixedly mounted on the outer wall of the collecting box (1), one end of the pull rope (43) being fixedly connected to a baffle (45), and a third spring (46) being fixedly connected to the surface of the baffle (45).

4. A rainwater collection and purification device according to claim 1, characterized in that: The rotating block (23) is sleeved on the outer side of the water pipe (21), and the rotating block (23) is movably connected to the water pipe (21) through a bearing. Four groups of the feed openings (25) and the filter screen (24) are respectively provided. The four groups of the feed openings (25) are distributed in a circular shape on the surface of the rotating block (23). The feed openings (25) and the water inlet (22) cooperate with each other. The output end of the motor (28) is fixedly connected to the worm (27), and the worm (27) is meshed with the worm wheel ring (26).

5. A rainwater collection and purification device according to claim 2, characterized in that: The brush plate (32) is located on the inner side of the collecting trough (12), the top end of the brush plate (32) is in contact with the surface of the filter screen (24), the first wedge block (33) and the second wedge block (37) cooperate with each other, and one end of the first spring (34) is fixedly connected to the brush plate (32).

6. A rainwater collection and purification device according to claim 2, characterized in that: The knocking rod (35) is located on one side of the brush plate (32), the top end of the knocking rod (35) abuts against the surface of the filter screen (24), one end of the second spring (36) is fixedly connected to the brush plate (32), the rotating convex ring (39) is sleeved on the outside of the fixed convex ring (38), and the rotating convex ring (39) and the fixed convex ring (38) cooperate with each other.

7. A rainwater collection and purification device according to claim 3, characterized in that: The push block (42) is installed in an inclined manner, and the push block (42) abuts against the surface of the rotating block (23). A coil spring is provided at the connection between the spool (41) and the installation block (11), and the middle part of the pull rope (43) is sleeved on the surface of the guide wheel (44).

8. A rainwater collection and purification device according to claim 3, characterized in that: The baffle (45) is located on the inner side of the discharge trough (13), and one end of the third spring (46) is fixedly connected to the inner wall of the collection box (1).

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