Waterlogging-preventing automatic gutter inlet cleaning device and application method thereof

Abstract

The invention discloses a waterlogging-preventing automatic gutter inlet cleaning device which comprises a gutter inlet, a rainwater grate assembly connected to the top of the gutter inlet and a garbage cleaning device located on the upper middle portion of the gutter inlet, a rod piece with a contact column is connected with an electric pulley device, and the garbage cleaning device comprises a garbage sewage intercepting hanging basket; the electric pulley device is mounted in an upper guide rail of the garbage intercepting hanging basket and can freely move; the distance from the bottom of the rod piece with the contact column to the bottom of the garbage intercepting hanging basket is 1cm; a laser transmitting and receiving device is mounted on the side wall of the short edge of the garbage intercepting hanging basket; the rainwater pipeline is arranged on one side of the bottom of the gutter inlet, the garbage well is connected to the other side of the gutter inlet, and the well bottom laser transmitting and receiving device and the garbage filtering channel are connected to the bottom of the gutter inlet; a well wall is arranged in the garbage well. By combining the design of the garbage collection well and the application of other related technologies, an effective solution is provided for optimization of an urban rainwater drainage system and reduction of the waterlogging risk.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a flood prevention and automatic rainwater outlet cleaning device and an application method thereof. Background Art

[0002] As a water collection device of the urban road drainage system, the rainwater inlet is arranged at the lowest point of the road cross slope. The water discharge capacity of the rainwater inlet and its arrangement determine the runoff volume of rainwater entering the municipal drainage system and the depth of water accumulation on the road surface. There are many problems with traditional rainwater inlets at present. They only play the role of discharging rainwater, and do not take into account the hidden dangers of rainwater inlet blockage, resulting in frequent water accumulation on some roads in the city. This not only affects the urban environment and the normal life and work of citizens, but also disrupts the urban order and even leads to more serious consequences, such as loosening and collapse of the roadbed and peeling and flipping of the road surface, which makes it impossible for vehicles to pass or increases the risk of passing and causes traffic accidents. Due to pollution and blockage, the drainage capacity of traditional rainwater inlets has decreased, which in turn leads to a decrease in the drainage capacity of urban roads. These problems need to be solved urgently.

[0003] Therefore, improving the drainage capacity of the rainwater inlet is very important for practical engineering. In order to solve these problems, we need to develop new rainwater inlet technologies, improve the drainage efficiency of the rainwater inlet, reduce blockage and pollution problems, thereby ensuring the drainage capacity of urban roads, ensuring the safety of citizens' travel and the normal operation of the city.

[0004] Therefore, the applicant, based on many years of rich experience in design, development and actual production in the relevant industry, has conducted research and improvements on the existing structures and deficiencies, and provided an automatic rainwater outlet cleaning device for flood prevention and its application method, in order to achieve a more practical purpose. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides an anti-flooding automatic rainwater outlet cleaning device and an application method thereof, which solves the problems of low drainage efficiency, easy blockage and pollution of current traditional rainwater outlets. Currently, rainwater outlets only serve to discharge rainwater, and the hidden dangers of blockage of rainwater outlets are not taken into consideration, resulting in frequent waterlogging on some roads in the city.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the present invention is implemented by the following technical scheme: a flood prevention and automatic cleaning rainwater inlet device, including a rainwater well, a rainwater inlet is provided on the top of the rainwater well, and a grate assembly is installed at the rainwater inlet for intercepting large debris. A garbage removal device is installed in the middle and upper part of the rainwater well, and an electric pulley mobile device is installed on the garbage removal device to facilitate the cleaning operation. The bottom of one side of the rainwater well is connected to a rainwater pipe, and the other side is connected to a garbage well. In order to monitor the garbage in the well, laser transmitting and receiving devices are installed on the upper and lower layers of the interception filter to monitor the garbage inside the filter. The garbage filtering channel is arranged at the bottom of the rainwater well and directly leads to the garbage well. A device for controlling opening and closing is also installed on the channel. A layer of filter net is arranged at the connection port between the bottom of the rainwater well and the rainwater pipe to further prevent garbage from entering the rainwater pipe. The telescopic device is connected between the filter net and the top of the rainwater pipe to increase the flexibility of the system. An openable manhole cover is arranged above the garbage well to facilitate the cleaning of the deposits in the well. Solar panels, rechargeable batteries and equipment control transmitters are installed next to the garbage pit.

[0009] A laser transmitter and receiver is installed at the bottom of the rainwater well, upstream of the filter, to monitor the garbage accumulation at the bottom of the well in real time. A trash bin that can move up and down is installed inside the garbage well to facilitate the collection and cleaning of garbage from the garbage filter channel. This design ensures efficient separation of garbage and is also convenient for daily maintenance and management.

[0010] First, the rain grate has a main frame with rainwater holes specially designed for drainage to ensure that rainwater can be discharged smoothly. The main frame is also equipped with an up and down adjustment module that can be turned down and opened. Intelligent pressure sensors are installed at the corners of the main frame, and these sensors are installed on the water flow path.

[0011] Furthermore, the regulating module comprises an regulating main frame and rainwater holes which are arranged on the regulating main frame and can be opened downwards. The regulating modules are arranged at intervals in the grate assembly and are distributed alternately with the movable rainwater holes.

[0012] Furthermore, the main adjustment frame is connected to the main frame of the grate through a rotating shaft, and the adjustment module can be automatically opened downward. The rainwater holes are arranged in neat rows and columns, and the matching adjustment modules are arranged on the main frame of the grate in the same way. Each adjustment module is precisely installed in the pre-designed adjustment hole on the frame, and the rainwater hole is rectangular.

[0013] Furthermore, the grate main frame is connected to the adjustment main frame via a rotating shaft, and the detachable side is connected via a plug-in locking device, and the rotating shaft is respectively connected to the pressure sensor and the remote control center.

[0014] Furthermore, the upper part of the garbage removal device is an electric pulley device that can move freely in the track, and the lower part is a sewage interception filter with holes. The lower part of the electric pulley device is connected to a rod, and the interval between the rods is between 10cm and 15cm. The length of the rod is 1cm less than the depth of the sewage interception filter. A 3cm long contact column is installed on the upper part of the rod, and the other side is a baffle with holes that can be opened freely.

[0015] Furthermore, a laser emitting device and a laser receiving device are installed on the lateral side wall of the garbage removing device.

[0016] Furthermore, the filter screen is installed on the support at the rainwater well and the rainwater connecting pipe. The filter screen is located at the large diameter part of the connection and is located on the side wall of the rainwater well and facing the rainwater well. The rainwater connecting pipe is connected with a telescopic device.

[0017] Furthermore, the laser emitting device and the laser receiving device are respectively located on opposite sides of the center of the rainwater well wall, and the height of the laser emitting device and the laser receiving device is the designed garbage cleaning height.

[0018] Furthermore, the depth of the garbage well is greater than that of the rainwater well and the depth difference between the two is not less than the height of the garbage collection box, and the garbage filtering channel between the garbage well and the rainwater pipe is arranged horizontally; the garbage collector is automatically lifted and lowered by controlling the vertical lifting guide rail.

[0019] Furthermore, the installed solar panels can charge rechargeable batteries to ensure the power supply of equipment such as the electric pulley device, laser sending and receiving device, filter closing and retracting device, vertical lifting device and equipment controller in the rainwater well.

[0020] An application method of a flood prevention and automatic rainwater inlet cleaning device, the specific steps are as follows:

[0021] S1: At the beginning of rainfall, the pressure sensor located next to the rain grate just transmits water pressure;

[0022] S2: As the rainfall continues, within a specified time, the pressure of the pressure sensor gradually increases and the pressure has a trend of continuing to rise to reach a preset value, which proves that the rainwater holes on the rainwater grate are blocked or other garbage blocks the grate assembly;

[0023] S3: At this time, the rainwater holes on the rotating grate assembly are controlled to increase the drainage area, speed up drainage, and reduce the risk of waterlogging;

[0024] S4: When the rainfall ends, the pressure received by the pressure sensor will decrease. When it is less than the specified value, the shaft and the rainwater hole will return to their original state;

[0025] S5: The garbage blocks the drainage holes of the two garbage removal devices, or enters the rainwater well through the drainage holes. For the blocked garbage removal device, the amount of garbage accumulation at this time is judged by the laser device installed in the device to control the start of the electric pulley device, and the rod connected to the device moves in the garbage removal device to remove the debris blocking the drainage hole;

[0026] S6: For garbage entering the bottom of the rainwater well, the laser emitting device at the bottom emits lasers at a fixed time, and the laser receiving device controls the filter screen and starts the opening and closing device according to the received laser position, so as to push the garbage at the bottom of the rainwater well to the garbage collection box in the garbage well;

[0027] S7: When the opening and closing device is activated a specified number of times, a signal will be transmitted to the remote control center of the terminal so that the staff can be reminded in time and arrange cleaning work. This can ensure the cleanliness and unobstructed flow of the rainwater well and avoid blockage problems that affect the urban drainage system.

[0028] (III) Beneficial effects

[0029] The present invention provides a flood prevention and automatic rainwater inlet cleaning device and an application method thereof. It has the following beneficial effects:

[0030] (1) It can effectively increase the drainage capacity of the rainwater well. When the amount of rainwater is large, the drainage aperture can be enlarged by automatically rotating the shaft, allowing more water to flow through and improving drainage efficiency. At the same time, this setting also facilitates municipal sanitation workers to carry out regular cleaning work, avoiding the problem of blockage affecting the urban drainage system;

[0031] (2) It can automatically clean the garbage in the sewage interception filter, and through the setting of the filter net and the telescopic device, it is convenient and efficient to clean the garbage at the bottom of the rainwater well;

[0032] (3) Through the digital settings of the movable plate, pressure sensor and controller in advance, the water accumulation around the rainwater inlet can be effectively monitored. The controller controls the use of the adjustment template and garbage removal device according to the water accumulation situation, thereby improving the efficiency and effect of rainwater treatment;

[0033] (4) By combining the design of garbage collection wells with the application of other related technologies, an effective solution is provided for optimizing the urban rainwater drainage system and reducing the risk of waterlogging. This design idea not only has practical application value, but also helps to promote technological progress and innovation in related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a layout diagram of the automatic rainwater inlet cleaning device for flood prevention;

[0035] Figure 2 is a schematic diagram of the structure of a garbage removal device;

[0036] Figure 3 It is a schematic diagram of the internal structure of the garbage removal device;

[0037] Figure 4 This is a schematic diagram of the electric pulley device and its connection structure

[0038] Figure 5 It is a structural plan view of the grate assembly;

[0039] Figure 6 It is a vertical cross-sectional view of the grate assembly structure when open and closed;

[0040] Figure 7 It is a schematic diagram of the arrangement of the laser sending and receiving device;

[0041] Figure 8 It is a working procedure diagram of the laser sending and receiving device.

[0042] In the figure: 1. garbage well, 2. rainwater outlet, 3. well wall, 4. rainwater grate assembly, 5. openable well cover, 6. retractable spring, 7. electric pulley device, 8. rod with contact column, 9. openable side wall, 91. rotating device, 10. opening and closing device, 11. laser transmitting and receiving device, 12. openable filter net, 13. telescopic connecting rod, 131. telescopic device, 14. vertical guide rail, 15. garbage collection box, 16. vertical electric mobile pulley device, 17. controller and transmitting device, 18. solar panel, 19. pressure sensor, 20. rotating shaft, 21. telescopic fixing device, 22. rainwater hole, 23. signal transmitting antenna, 24. garbage removal device, 241. garbage interception hanging basket, 25. rainwater pipe, 26. laser transmitting and receiving device at the bottom of the well, 27. drainage hole. DETAILED DESCRIPTION

[0043] 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.

[0044] See also Figure 1-8 The present invention provides a technical solution: a flood prevention automatic cleaning rainwater inlet device, comprising a rainwater inlet 2, a rainwater grate assembly 4 connected to the top of the rainwater inlet 2, a garbage removal device 24 located in the middle and upper part of the rainwater inlet 2, and a rod 8 with a contact column connected to an electric pulley device 7.

[0045] The garbage removal device 24 includes a garbage interception basket 241; the electric pulley device 7 is installed in the upper guide rail of the garbage interception basket 241 and can move freely; the bottom of the rod 8 with a contact column is 1 cm away from the bottom of the garbage interception basket 241;

[0046] A laser transmitting and receiving device 11 is installed on the short side wall of the garbage interception hanging basket 241; a rainwater pipe 25 on one side of the bottom of the rainwater inlet 2, a garbage well 1 connected to the other side of the rainwater inlet 2, a laser transmitting and receiving device 26 at the bottom of the well connected to the bottom of the rainwater inlet 2, and a garbage filtering channel; a well wall 3 is arranged in the garbage well 1; an openable well cover 5 is arranged above the garbage well 1;

[0047] An openable filter screen 12 connected to the bottom of the rainwater outlet 2 and the connecting port of the rainwater pipe 25, and a telescopic device 131 connected to the openable filter screen 12 and the top of the rainwater pipe 25 are fixedly connected through a telescopic connecting rod 13. The bottom of the rainwater outlet 2 is connected to the garbage pit 1 by setting a garbage filtering channel, and an opening and closing device 10 is installed on the garbage filtering channel. The opening and closing device 10 is installed on the well wall 3 of the garbage pit 1 and is connected to a garbage collection box 15 in the garbage pit 1; a vertical guide rail 14 is provided in the garbage pit 1, and a vertical electric movable pulley device 16 is provided on the vertical guide rail 14.

[0048] like Figures 2 to 4 As shown, the diameter of the garbage interception hanging basket 241 can be placed on the fixed block in the rainwater outlet 2. The garbage interception hanging basket 241 is surrounded by neatly arranged drainage outlets 27, and a guide rail is installed above it. The electric pulley device 7 is installed in the guide rail, and the electric pulley device 7 is fixedly connected to the rod 8 with a contact column. The garbage interception hanging basket 241 is connected to the openable side wall 9 by a rotating device 91 near the garbage pit 1. The openable side wall 9 is usually locked by a retractable spring 6; when the electric pulley device 7 moves to the side of the garbage pit 1, the protruding part of the rod 8 with the contact column will compress the retractable spring 6. After being compressed to a certain extent, the rotating device 91 can be rotated downward without being locked, and the openable side wall 9 is in an open state; after the electric pulley device 7 is returned to its position, the rotating device 91 will receive a signal and perform self-returning rotation, and the openable side wall 9 is in a closed state.

[0049] like Figures 5 and 6As shown, the rainwater grate assembly 4 includes a rainwater grate main frame, a rotating shaft 20 arranged on the rainwater grate main frame and connected to the grate main frame and rotated downward to open, a pressure sensor 19 connected to the corner of the rainwater grate main frame, a rainwater hole 22 and a telescopic fixture 21; the rainwater hole 22 and the rotating shaft 20 are locked by the telescopic fixture 21. The rainwater hole 22 on the rotating shaft 20 is locked by the telescopic fixture 21. The pressure sensor 19 is connected to the top of the rainwater grate assembly 4, the rotating shaft 20 is a rotation connection and the rotating shaft 20 is located at the water surface, and the pressure sensor 19 is used to receive and transmit pressure signals.

[0050] like Figure 7-8 As shown, there are four transmitting and receiving points at equal heights on the bottom-hole laser transmitting and receiving device 26. By receiving signals at receiving points at different heights, the accumulation of garbage in the well can be monitored.

[0051] The laser sending and receiving device 11 is respectively located on both sides of the short side of the garbage interception hanging basket 241; the height of the laser sending and receiving device 26 at the bottom of the well is the designed garbage cleaning height; the depth of the garbage well 1 is greater than the depth of the rainwater outlet 2 and the depth difference between the two is not less than the height of the garbage collection box 15, and the garbage filtering channel between the garbage well 1 and the rainwater pipe 25 is horizontally arranged; the garbage collection box 15 is automatically raised and lowered by a vertical electric movable pulley device 16.

[0052] For garbage entering the bottom of the rainwater well, the laser sending and receiving device 26 at the bottom of the well periodically emits lasers. The laser sending and receiving device 26 at the bottom of the well controls the filter 12 to open and start the opening and closing device 10 according to the received laser position, and pushes the garbage at the bottom of the rainwater well into the garbage collection box 15 in the garbage well 1.

[0053] The device is provided with a controller and a transmitting device 17 outside. When the opening and closing device 10 is started up a specified number of times, a signal is transmitted to the remote control center of the terminal through the controller and the transmitting device 17. The controller and the transmitting device 17 are provided with a signal transmitting antenna 23. A solar panel 18 is installed on one side of the garbage well 1 to charge the rechargeable battery to ensure the power supply of the electric pulley device 7, the laser transmitting and receiving device 11, the filter net closing and retracting device, the vertical lifting device and the equipment controller in the rainwater well.

[0054] The size of the openable filter screen 12 should match the rainwater pipe 25, and its aperture range is 1.0cm to 1.5cm. The telescopic device 13 controls the openable filter screen 12 of the rainwater pipe through the telescopic connecting rod 131, so that it can move forward and backward to clean the deposits at the bottom of the rainwater outlet 2.

[0055] The garbage filter channel is used to transfer garbage, connects the garbage well 1 and the rainwater inlet 2, and its size should be slightly larger than the rainwater pipe 25. On the garbage filter channel, an opening and closing device 10 is installed, which is installed on the well wall 3 of the garbage well 1, and its size also needs to match the openable filter screen 12.

[0056] The garbage well 1 is used to receive garbage from the rainwater inlet 2. Its plane size is 0.5m×0.8m, which can be appropriately enlarged or reduced according to actual conditions. The depth of the garbage well 1 needs to be about 0.3m deeper than the depth of the rainwater inlet 2 to ensure that the garbage can flow smoothly into the garbage well. The garbage collection box 15 is located in the garbage well 1 and is used to store the garbage collected from the rainwater inlet 2. Its plane size matches the plane size of the garbage well 1, which is slightly smaller than the plane size of the garbage well 1, and its height is slightly smaller than the depth difference between the garbage well 1 and the rainwater inlet 2, so that the garbage collection box can be easily taken out when cleaning the garbage.

[0057] The vertical guide rail 14 is located in the garbage pit 1 and is used to lift the garbage collection box 15 ; the vertical electric movable pulley device 16 is installed on the garbage collection box 15 , and the movement of the vertical electric movable pulley device 16 on the vertical guide rail 14 can drive the garbage collection box 15 to be raised or lowered.

[0058] An application method of a flood prevention and automatic rainwater inlet cleaning device, the specific steps are as follows:

[0059] Step 1: At the beginning of rainfall, the rainwater hole 22 and the rotating shaft 20 on the rainwater grate assembly 4 are locked by the telescopic fixing device 21, and the pressure sensor 19 will transmit a certain water pressure;

[0060] Step 2: As the rainfall continues, within a specified time, the pressure of the pressure sensor 19 gradually increases and the pressure has a trend of continuing to rise to reach a preset value, proving that the rainwater hole 22 on the rainwater grate is blocked or other garbage blocks the grate assembly;

[0061] Step 3: At this time, the telescopic fixing device 21 on the rainwater grate assembly 4 is controlled to rotate the rotating shaft 20 downward, and the rainwater hole 22 is enlarged to increase the drainage area, speed up drainage, and reduce the risk of waterlogging;

[0062] Step 4: When the rainfall ends, the pressure received by the pressure sensor 19 will decrease. When it is less than the specified value, the shaft 20 and the rainwater hole 22 return to their original state;

[0063] Step 5: The garbage blocks the drainage holes 27 of the two garbage interception baskets 241, or enters the rainwater well through the drainage holes 27. For the blocked garbage removal device 24, the amount of garbage accumulation at this time is judged according to the laser sending and receiving device 11 installed in the device to control the start of the electric pulley device 7. The rod 8 with a contact column connected to the device moves in the garbage interception basket 241. When the rod 8 with a contact column touches the side wall installed with the retractable spring 6, the side wall will move outward due to the compression of the retractable spring 6. At this time, the openable side wall 9 is not locked and will open downward with the rotating device 91. The debris blocking the drainage port 27 can be removed by moving the rod 8 with a contact column, and the garbage and debris fall into the garbage well 1 through the openable side wall 9.

[0064] Step 6: For the garbage entering the bottom of the rainwater well, the laser transmitting and receiving device 26 at the bottom of the well emits lasers at a fixed time. The laser transmitting and receiving device 26 at the bottom of the well controls the filter 12 to be opened and the opening and closing device 10 to be started according to the received laser position, so as to push the garbage at the bottom of the rainwater well to the garbage collection box 15 in the garbage well 1;

[0065] Step 7: When the opening and closing device 10 is started up a specified number of times, a signal will be transmitted to the remote control center of the terminal through the controller and the sending device 17, so that the staff can be reminded in time and arrange cleaning work, thus ensuring the cleanliness and unobstructedness of the rainwater outlet 2 and avoiding blockage problems that affect the urban drainage system.

[0066] In summary, the present invention can effectively increase the drainage capacity of the rainwater well. When the amount of rainwater is large, the drainage aperture can be enlarged by automatically rotating the shaft, so that more water can flow through and the drainage efficiency can be improved. At the same time, this setting also facilitates municipal sanitation workers to carry out regular cleaning work, avoiding the problem of blockage affecting the urban drainage system.

[0067] The present invention can automatically clean up the garbage in the sewage interception filter, and conveniently and efficiently clean up the garbage at the bottom of the rainwater well through the arrangement of the filter net and the telescopic device.

[0068] The present invention can effectively monitor the water accumulation around the rainwater inlet through the digital setting of the movable plate, the pressure sensor and the controller in advance. The controller controls the use of the adjustment template and the garbage removal device according to the water accumulation, thereby improving the efficiency and effect of rainwater treatment.

[0069] The present invention provides an effective solution for optimizing the urban rainwater drainage system and reducing the risk of waterlogging by combining the design of garbage collection wells and the application of other related technologies. This design concept not only has practical application value, but also helps to promote technological progress and innovation in related fields.

[0070] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flood-proof automatic rainwater inlet cleaning device, comprising a rainwater inlet (2), a rainwater grate assembly (4) connected to the top of the rainwater inlet (2), a garbage removal device (24) located in the middle and upper part of the rainwater inlet (2), and a rod (8) with a contact column connected to an electric pulley device (7), characterized in that: The garbage removal device (24) comprises a garbage interception basket (241); the electric pulley device (7) is installed in the upper guide rail of the garbage interception basket (241) and can move freely; the distance between the bottom of the rod (8) with the contact column and the bottom of the garbage interception basket (241) is 1 cm; A laser transmitting and receiving device (11) is installed on the short side wall of the garbage interception hanging basket (241); a rainwater pipe (25) on one side of the bottom of the rainwater inlet (2), a garbage well (1) connected to the other side of the rainwater inlet (2), a laser transmitting and receiving device (26) at the bottom of the well connected to the bottom of the rainwater inlet (2), and a garbage filtering channel; a well wall (3) is arranged in the garbage well (1); and an openable well cover (5) is arranged above the garbage well (1); An openable filter screen (12) connected to the bottom of the rainwater inlet (2) and the connection port of the rainwater pipe (25) and a telescopic device (131) connected to the openable filter screen (12) and the top of the rainwater pipe (25) are fixedly connected via a telescopic connecting rod (13); the bottom of the rainwater inlet (2) and the garbage well (1) are connected via a garbage filtering channel, and an opening and closing device (10) is installed on the garbage filtering channel; the opening and closing device (10) is installed on the well wall (3) of the garbage well (1) and connected to a garbage collection box (15) in the garbage well (1); a vertical guide rail (14) is provided in the garbage well (1), and a vertical electric movable pulley device (16) is provided on the vertical guide rail (14).

2. The automatic rainwater inlet cleaning device for flood prevention according to claim 1, characterized in that: The diameter of the garbage interception hanging basket (241) can be placed on a fixed block in the rainwater outlet (2). The garbage interception hanging basket (241) is surrounded by neatly arranged drainage outlets (27), and a guide rail is installed above it. The electric pulley device (7) is installed in the guide rail, and the electric pulley device (7) is fixedly connected to a rod (8) with a contact column.

3. The automatic rainwater inlet cleaning device for flood prevention according to claim 1, characterized in that: The garbage interception hanging basket (241) is connected to the openable side wall (9) via a rotating device (91) on the side close to the garbage well (1), and the openable side wall (9) is usually locked by a retractable spring (6); when the electric pulley device (7) moves to one side of the garbage well (1), the protruding part of the rod (8) with the contact column will compress the retractable spring (6), and after being compressed to a certain extent, the rotating device (91) is not locked and can rotate downward, and the openable side wall (9) is in an open state; after the electric pulley device (7) returns to its original position, the rotating device (91) will perform self-returning rotation after receiving a signal.

4. The automatic rainwater inlet cleaning device for flood prevention according to claim 1, characterized in that: The rainwater grate assembly (4) comprises a rainwater grate main frame, a rotating shaft (20) arranged on the rainwater grate main frame and connected to the grate main frame and rotated downward to open, a pressure sensor (19) connected to the corner of the rainwater grate main frame, a rainwater hole (22) and a telescopic fixing device (21); the rainwater hole (22) and the rotating shaft (20) are locked by the telescopic fixing device (21).

5. The automatic rainwater inlet cleaning device for flood prevention according to claim 1, characterized in that: The laser transmitting and receiving devices (11) are respectively located on both sides of the short side of the garbage interception hanging basket (241); the height of the laser transmitting and receiving devices (26) at the bottom of the well is the designed garbage cleaning height; the depth of the garbage well (1) is greater than the depth of the rainwater outlet (2) and the depth difference between the two is not less than the height of the garbage collection box (15); the garbage filtering channel between the garbage well (1) and the rainwater pipe (25) is arranged horizontally; the garbage collection box (15) is automatically raised and lowered by a vertical electric movable pulley device (16).

6. The automatic rainwater inlet cleaning device for flood prevention according to claim 5, characterized in that: For garbage entering the bottom of the rainwater well, the laser transmitting and receiving device (26) at the bottom of the well emits lasers at a fixed time. The laser transmitting and receiving device (26) at the bottom of the well controls the filter (12) to be opened and the opening and closing device (10) to be started according to the position of the received laser, so as to push the garbage at the bottom of the rainwater well into the garbage collection box (15) in the garbage well (1).

7. The automatic rainwater inlet cleaning device for flood prevention according to claim 1, characterized in that: The device is provided with a controller and a transmitting device (17) outside. When the opening and closing device (10) is started a specified number of times, a signal is transmitted to a remote control center of a terminal through the controller and the transmitting device (17). The controller and the transmitting device (17) are provided with a signal transmitting antenna (23). A solar panel (18) is installed on the side of the garbage well (1) to charge a rechargeable battery to ensure power supply to the electric pulley device (7), the laser transmitting and receiving device (11), the filter screen closing and retracting device, the vertical lifting device, the device controller and other equipment in the rainwater well.

8. An application method of a flood prevention and automatic rainwater inlet cleaning device, characterized in that: The invention comprises a flood prevention and automatic rainwater inlet cleaning device as claimed in claim 1, wherein the specific steps are as follows: S1: At the beginning of rainfall, the rainwater hole (22) and the rotating shaft (20) on the rainwater grate assembly (4) are locked by the telescopic fixing device (21), and the pressure sensor (19) will transmit a certain water pressure; S2: As the rainfall continues, within a specified time, the pressure of the pressure sensor (19) gradually increases and has a tendency to continue to rise to reach a preset value, which proves that the rainwater hole (22) on the rainwater grate is blocked or other garbage blocks the grate assembly; S3: At this time, the telescopic fixing device (21) on the rainwater grate assembly (4) is controlled to rotate the rotating shaft (20) downward, and the rainwater hole (22) is enlarged to increase the drainage area, speed up drainage, and reduce the risk of waterlogging; S4: When the rainfall ends, the pressure received by the pressure sensor (19) decreases. When the pressure is less than a specified value, the rotating shaft (20) and the rainwater hole (22) return to their original state; S5: Garbage blocks the drainage holes (27) of the two garbage interception baskets (241), or enters the rainwater well through the drainage holes (27). For the blocked garbage removal device (24), the amount of garbage accumulation at this time is judged by the laser transmitting and receiving device (11) installed in the device to control the start of the electric pulley device (7). The rod (8) with a contact column connected to the device moves in the garbage interception basket (241). When the rod (8) with a contact column touches the side wall installed with the retractable spring (6), the side wall will move outward due to the compression of the retractable spring (6). At this time, the openable side wall (9) is not locked and will open downward together with the rotating device (91). The debris blocking the drainage port (27) can be removed by moving the rod (8) with a contact column, and the garbage and debris fall into the garbage well (1) through the openable side wall (9); S6: For garbage entering the bottom of the rainwater well, the laser transmitting and receiving device (26) at the bottom of the well emits lasers at a fixed time. The laser transmitting and receiving device (26) at the bottom of the well controls the filter (12) to be opened and the opening and closing device (10) to be started according to the position of the received laser, so as to push the garbage at the bottom of the rainwater well to the garbage collection box (15) in the garbage well (1); S7: When the opening and closing device (10) is activated a specified number of times, a signal is transmitted to the remote control center of the terminal through the controller and the sending device (17), so that the staff can be reminded in time and arrange cleaning work, thereby ensuring the cleanliness and unobstructed flow of the rainwater outlet (2) and avoiding blockage problems that affect the urban drainage system.

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