A rain gauge for measuring rainfall in meteorological monitoring

Abstract

The present invention discloses a rainfall measuring device for meteorological monitoring, which relates to the technical field of meteorological monitoring. The rainfall measuring device for meteorological monitoring includes a bottom plate, a collection box fixedly installed on the top of the bottom plate, a measuring cylinder fixedly installed on the top of the bottom plate, and a support plate fixedly installed on the outer surface of one side of the collection box. By the combined use of the cleaning mechanism and the retaining net, the rainfall measuring device for meteorological monitoring can prevent fallen leaves from entering the device and can timely remove the fallen leaves on the retaining net, solving the problem that although some existing devices can prevent fallen leaves from entering the device and causing blockage during use, the fallen leaves are blocked by the retaining net and cannot be removed, resulting in rainwater being blocked by the fallen leaves and unable to enter the device in time, causing deviation of measurement data. The collection efficiency of the device is improved, and the practicability of the device is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of meteorological monitoring, and particularly relates to a rainfall device for measuring rainfall in meteorological monitoring. Background Art

[0002] When meteorological monitoring is carried out, it is necessary to measure the rainfall during rain by a rainfall device. However, for some existing rainfall devices, although they can prevent fallen leaves from entering the device and causing blockage during use, the fallen leaves are blocked by the blocking net and cannot be cleared, resulting in rainwater being blocked by the fallen leaves and unable to enter the device in time, causing deviation in measurement data. In addition, for some existing devices when measuring in an arid environment with wind-blown sand, the sand will enter the device interior and accumulate, and will adhere to the bottom of the device over a long time and be difficult to be washed away by rainwater, thus causing blockage of the internal pipeline. Moreover, when some existing devices collect rainwater, rainwater will also adhere to their inner walls, and it takes a long time for it to freely fall, and direct measurement will produce data deviation. Summary of the Invention

[0003] An object of the present invention is to solve at least one of the technical problems existing in the prior art, and provide a rainfall device for measuring rainfall in meteorological monitoring, which can solve at least one of the above problems.

[0004] To achieve the above object, the present invention provides the following technical solution: A rainfall device for measuring rainfall in meteorological monitoring, which includes:

[0005] A bottom plate, on which a collection box and a measuring cylinder are fixedly installed at the top. A support plate is fixedly installed on an outer surface of one side of the collection box. The top of the collection box is open, and a blocking net is arranged at the open top.

[0006] A cleaning mechanism, which is arranged on the top of the support plate. The cleaning mechanism includes a first sliding rod, a sliding plate, a first motor and a first gear. The first sliding rod is fixedly installed on the top of the support plate. A hollow sliding plate is movably sleeved on the first sliding rod. A first motor is fixedly installed on one side of the sliding plate. A first gear is rotatably installed between inner walls on both sides of the sliding plate. The output shaft of the first motor is fixedly connected to the first gear.

[0007] A vibration mechanism and a sand removal mechanism, both of which are located in the collection box, and the vibration mechanism is located above the sand removal mechanism.

[0008] According to the rainfall device for measuring rainfall in meteorological monitoring, the cleaning mechanism further includes a toothed plate, a connecting rod, a cleaning roller, a slider and a second sliding rod. The toothed plate is fixedly installed on the top of the support plate. The first gear meshes with the toothed plate. The other side of the first sliding rod is rotatably installed with a connecting rod. One end of the connecting rod is fixedly installed with a cleaning roller. The second sliding rod is fixedly installed on the top of the collection box. The slider is movably sleeved on the second sliding rod, and the slider is rotatably connected to one end of the cleaning roller.

[0009] According to a rain gauge device for measuring rainfall in meteorological monitoring, the vibration mechanism includes a second motor, a first bevel gear, a second bevel gear, a turntable and an elastic sheet. A water collecting hopper is fixedly installed on the inner wall of the collecting box. A second motor is fixedly installed on the collecting box. A first bevel gear is rotatably installed on one side inner wall of the collecting box. The output shaft of the second motor is fixedly connected to the first bevel gear through a coupling. A second bevel gear is rotatably installed between the front and rear side inner walls of the collecting box. The second bevel gear meshes with the first bevel gear. A turntable is fixedly installed on the rear side or the front side of the second bevel gear. An elastic sheet is fixedly installed on the outer surface of the turntable.

[0010] According to a rain gauge device for measuring rainfall in meteorological monitoring, the sand removal mechanism includes a third motor, a rotating rod, a hanging plate, a second gear, a toothed ring and a cleaning brush. A third motor is fixedly installed inside the bottom plate. A rotating rod is rotatably installed on the inner bottom side of the collecting box. The output shaft of the third motor is fixedly connected to the rotating rod through a coupling. Two groups of hanging plates are fixedly installed on the outer surface of the rotating rod. A second gear is rotatably installed at the bottom of each of the two groups of hanging plates. A toothed ring is fixedly installed on the inner wall of the collecting box. The two groups of second gears mesh with the toothed ring. A cleaning brush is fixedly installed at the bottom of each of the two groups of second gears.

[0011] According to a rain gauge device for measuring rainfall in meteorological monitoring, two groups of pipelines are opened on the inner wall of the collecting box. A first solenoid valve and a second solenoid valve are correspondingly arranged in the two groups of pipelines. The inside of the collecting box communicates with the inside of the measuring cylinder through a group of pipelines provided with the first solenoid valve. A drain pipe is fixedly installed on the outer surface of one side of the collecting box. The drain pipe communicates with the inside of the collecting box through the other group of pipelines. The effect of being able to control the first solenoid valve and the second solenoid valve to control the discharge of sand, the collection of rainwater and the discharge of rainwater is achieved.

[0012] According to a rain gauge device for measuring rainfall in meteorological monitoring, an installation hole is opened on the front side of the measuring cylinder. A water level window is inlaid in the installation hole. A scale is arranged on the front side of the measuring cylinder. The effect of being able to obtain the water volume through the scale to measure and calculate the rainfall is achieved.

[0013] According to a rain gauge device for measuring rainfall in meteorological monitoring, a support mechanism is arranged on the bottom plate. The support mechanism includes support rods, sleeve plates, support plates and limit screws. Two groups of storage grooves are opened on the front and rear sides of the bottom plate respectively. A support rod is rotatably installed in each of the four groups of storage grooves. A sleeve plate is fixedly installed at the bottom of each of the four groups of support rods. A support plate is arranged in each of the four groups of sleeve plates. A through groove is opened at the bottom of each of the four groups of sleeve plates. Each of the four groups of support plates extends to the bottom of the sleeve plate through the through groove. Two groups of slots arranged vertically are opened on one side of each of the four groups of support plates. A limit screw is threadedly installed on the outer surface of one side of each of the four groups of sleeve plates. Each of the four groups of limit screws penetrates through the four groups of sleeve plates and fits with the inner wall of the slot.

[0014] According to the rain gauge device for measuring rainfall in meteorological monitoring, two sets of mounting blocks are arranged at the top of the collection box. A retaining net is fixedly installed between the two sets of mounting blocks. One set of mounting screws is arranged at the top of each of the two sets of mounting blocks. One set of mounting holes is formed in each of the two sets of mounting blocks. The two sets of mounting screws are threadedly installed at the top of the collection box through the through holes respectively. In this way, the effect of being able to disassemble and assemble the retaining net through the mounting screws for easy maintenance is achieved.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) By the combined use of the cleaning mechanism and the retaining net, it is possible to prevent fallen leaves from entering the device and to timely remove the fallen leaves on the retaining net, solving the problem that although some existing devices can prevent fallen leaves from entering the device and causing blockage during use, the fallen leaves are blocked by the retaining net and cannot be removed, resulting in rainwater being blocked by the fallen leaves and unable to enter the device in time, causing deviation of measurement data, improving the collection efficiency of the device, and enhancing the practicability of the device.

[0017] (2) By the combined use of the sand removal mechanism and the second solenoid valve, when sand deposits and adheres to the inner bottom of the collection box, it can cooperate with rainfall to stir and clean the adhered sand so that it is discharged with water, solving the problem that in some existing devices when measuring in an arid environment with wind-blown sand, the sand will enter the device and deposit, and it will adhere to the bottom of the device and be difficult to be washed away by rainwater in the long term, thus causing blockage of the internal pipeline, improving the measurement efficiency of the device, and being beneficial to the popularization and use of the device.

[0018] (3) By the combined use of the water collecting hopper and the vibration mechanism, when rainwater adheres to the water collecting hopper, it can control the elastic piece to strike the water collecting hopper to make it vibrate as the turntable rotates, accelerating the falling speed of the rainwater, solving the problem that in some existing devices when collecting rainwater, rainwater will also adhere to its inner wall, and it takes a long time to wait for it to fall freely, and direct measurement will produce data deviation, improving the measurement accuracy of the device, and ensuring the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the drawings and embodiments:

[0020] Figure 1 is a cross-sectional view of the present invention;

[0021] Figure 2 is a front cross-sectional view of the present invention;

[0022] Figure 3 is a front view of the present invention;

[0023] Figure 4Enlarged view of part A of the present invention;

[0024] Figure 5 Enlarged view of part B of the present invention;

[0025] Figure 6 Enlarged view of part C of the present invention.

[0026] Reference numerals: 1, bottom plate; 2, collection box; 3, support plate; 4, cleaning mechanism; 401, first slide bar; 402, slide plate; 403, first motor; 404, first gear; 405, toothed plate; 406, connecting rod; 407, cleaning roller; 408, slider; 409, second slide bar; 5, water collecting hopper; 6, vibration mechanism; 601, second motor; 602, first bevel gear; 603, second bevel gear; 604, turntable; 605, elastic sheet; 7, sand removal mechanism; 701, third motor; 702, rotating rod; 703, hanging plate; 704, second gear; 705, toothed ring; 706, cleaning brush; 8, support mechanism; 801, support rod; 802, sleeve plate; 803, support plate; 804, limit screw; 9, measuring cylinder; 10, mounting block; 11, retaining net; 12, mounting screw; 13, first solenoid valve; 14, second solenoid valve; 15, drain pipe. Detailed implementation manners

[0027] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0031] Please refer to Figure 1-6 , the present invention provides a technical solution: a rainfall device for meteorological monitoring to measure rainfall, including a bottom plate 1, a cleaning mechanism 4, a vibration mechanism 6 and a sand removal mechanism 7. A collection box 2 is fixedly installed on the top of the bottom plate 1. The vibration mechanism 6 and the sand removal mechanism 7 are both located inside the collection box 2, and the vibration mechanism 6 is located above the sand removal mechanism 7. A measuring cylinder 9 is fixedly installed on the top of the bottom plate 1. A support plate 3 is fixedly installed on the outer surface of one side of the collection box 2. Two groups of mounting blocks 10 are arranged on the top of the collection box 2. A retaining net 11 is fixedly installed between the two groups of mounting blocks 10. One set of mounting screws 12 is arranged on the top of each of the two groups of mounting blocks 10. One set of mounting holes is opened on each of the two groups of mounting blocks 10. The two sets of mounting screws 12 are respectively threadedly installed on the top of the collection box 2 through the through holes. Two groups of pipelines are opened on the inner wall of the collection box 2. A first solenoid valve 13 and a second solenoid valve 14 are correspondingly arranged in the two groups of pipelines. The interior of the collection box 2 is communicated with the interior of the measuring cylinder 9 through a group of pipelines provided with the first solenoid valve. A drain pipe 15 is fixedly installed on the outer surface of one side of the collection box 2. The drain pipe 15 is communicated with the interior of the collection box 2 through the other group of pipelines. An installation opening is opened on the front side of the measuring cylinder 9. A water level window is inlaid in the installation opening. A scale is arranged on the front side of the measuring cylinder 9.

[0032] The cleaning mechanism 4 is arranged on the top of the support plate 3. The cleaning mechanism 4 includes a first slide bar 401, a slide plate 402, a first motor 403 and a first gear 404. The first slide bar 401 is fixedly installed on the top of the support plate 3. A hollow slide plate 402 is movably sleeved on the first slide bar 401. A first motor 403 is fixedly installed on one side of the slide plate 402. A first gear 404 is rotatably installed between the inner walls on both sides of the slide plate 402. The output shaft of the first motor 403 is fixedly connected to the first gear 404.

[0033] The cleaning mechanism 4 further includes a toothed plate 405, a connecting rod 406, a cleaning roller 407, a slider 408 and a second sliding rod 409. The toothed plate 405 is fixedly installed at the top of the support plate 3. The first gear 404 meshes with the toothed plate 405. The other side of the first sliding rod 401 is rotatably installed with the connecting rod 406. One end of the connecting rod 406 is fixedly installed with the cleaning roller 407. The second sliding rod 409 is fixedly installed at the top of the collection box 2. The slider 408 is movably sleeved on the second sliding rod 409. The slider 408 is rotatably connected to one end of the cleaning roller 407. Under the combined action of the cleaning mechanism 4 and the retaining net 11, it can prevent fallen leaves from entering the device and can timely remove the fallen leaves on the retaining net 11, solving the problem that although some existing devices can prevent fallen leaves from entering the device and causing blockage during use, the fallen leaves are blocked by the retaining net 11 and cannot be removed, resulting in rainwater being blocked by the fallen leaves and unable to enter the device in time, avoiding deviation of measurement data, improving the collection efficiency of the device, and enhancing the practicability of the device.

[0034] The vibration mechanism 6 includes a second motor 601, a first bevel gear 602, a second bevel gear 603, a turntable 604 and an elastic sheet 605. A water collecting hopper 5 is fixedly installed on the inner wall of the collection box 2. The second motor 601 is fixedly installed on the collection box 2. A first bevel gear 602 is rotatably installed on one side inner wall of the collection box 2. The output shaft of the second motor 601 is fixedly connected to the first bevel gear 602 through a coupling. A second bevel gear 603 is rotatably installed between the front and rear inner walls of the collection box 2. The second bevel gear 603 meshes with the first bevel gear 602. A turntable 604 is fixedly installed on the rear side or the front side of the second bevel gear 603. The elastic sheet 605 is fixedly installed on the outer surface of the turntable 604. Under the combined action of the water collecting hopper 5 and the vibration mechanism 6, when rainwater adheres to the water collecting hopper 5, it can control the elastic sheet 605 to rotate with the turntable 604 and strike the water collecting hopper 5 to make it vibrate, accelerating the falling speed of the rainwater, solving the problem that when some existing devices collect rainwater, rainwater also adheres to their inner walls and it takes a long time for the rainwater to freely fall, avoiding data deviation in direct measurement, improving the measurement accuracy of the device, and ensuring the use effect of the device.

[0035] The sand removal mechanism 7 includes a third motor 701, a rotating rod 702, a hanging plate 703, a second gear 704, a toothed ring 705 and a cleaning brush 706. The third motor 701 is fixedly installed inside the bottom plate 1, and the rotating rod 702 is rotatably installed at the inner bottom of the collection box 2. The output shaft of the third motor 701 is fixedly connected to the rotating rod 702 through a coupling. Two groups of hanging plates 703 are fixedly installed on the outer surface of the rotating rod 702. One group of second gears 704 is rotatably installed at the bottom of each of the two groups of hanging plates 703. The toothed ring 705 is fixedly installed on the inner wall of the collection box 2. The two groups of second gears 704 are meshed with the toothed ring 705. One group of cleaning brushes 706 is fixedly installed at the bottom of each of the two groups of second gears 704. Under the combined action of the sand removal mechanism 7 and the second solenoid valve 14, when sand deposits and adheres to the inner bottom of the collection box 2, it can cooperate with rainfall to stir and clean the adhered sand so that it is discharged with water, solving the problem that in some existing devices, when measuring in an arid environment with wind-blown sand, the sand will enter the device and deposit, and it will adhere to the bottom of the device over time and be difficult to be washed away by rain, avoiding clogging of the internal pipeline, improving the measurement efficiency of the device, and being beneficial to the popularization and use of the device.

[0036] A support mechanism 8 is provided on the base 1. Specifically, the support mechanism 8 includes a support rod 801, a sleeve plate 802, a support plate 803 and a limit screw 804. Two groups of storage grooves are respectively opened on the front and rear sides of the bottom plate 1. One group of support rods 801 is rotatably installed in each of the four storage grooves. One group of sleeve plates 802 is fixedly installed at the bottom of each of the four support rods 801. One group of support plates 803 is respectively arranged inside each of the four sleeve plates 802. One group of through grooves is respectively opened at the bottom of each of the four sleeve plates 802. Each of the four support plates 803 extends to the bottom of the sleeve plate 802 through the through groove. Two groups of slots arranged vertically are respectively opened on one side of each of the four support plates 803. One group of limit screws 804 is respectively threadedly installed on the outer surface of one side of each of the four sleeve plates 802. Each of the four limit screws 804 penetrates through the four sleeve plates 802 and fits with the inner wall of the slot.

[0037] Working principle: When in use, place the device at the required measurement location, rotate the support rod 801 out of the storage groove to the front and rear sides of the bottom plate 1, rotate the limit screw 804 to pull out one of the slots on the support plate 803, then move the support plate 803 downward until it touches the ground and rotate the limit screw 804 to insert it into the other slot on the support plate 803 for fixation. The device is strengthened by increasing the contact area with the ground through the support plate 803; if fallen leaves fall on the net 11 during the placement process, control the first motor 403 to start and drive the first gear 404 to rotate. Under the action of the meshing of the first gear 404 and the toothed plate 405, drive the sliding plate 402 to move back and forth on the first sliding rod 401, and while driving the cleaning roller 407 to move back and forth, also drive the cleaning roller 407 to rotate to sweep the fallen leaves on the net 11.

[0038] Among them, if it is necessary to measure the rainfall during a period of time in the rain process, rainwater collection starts when it rains. Part of the rainwater that enters the interior of the collection box 2 adheres to the water collection hopper 5. Control the second motor 601 to start and drive the first bevel gear 602 to rotate. The first bevel gear 602 drives the second bevel gear 603 to rotate. The second bevel gear 603 drives the turntable 604 to rotate, which drives the elastic piece 605 to continuously strike the water collection hopper 5. The water collection hopper 5 is vibrated by the strike and the adhered rainwater is shaken off into the inner bottom of the collection box 2. After the rainwater enters the collection box 2, control the first solenoid valve 13 and the second solenoid valve 14 to close. At this time, control the third motor 701 to start and drive the rotating rod 702 to rotate. The rotating rod 702 drives the second gear 704 to rotate around the rotating rod 702 through the suspension plate 703. Under the action of the meshing of the second gear 704 and the tooth ring 705, the second gear 704 itself also rotates to drive the cleaning brush 706 to rotate, stir and clean the sand deposited and adhered to the inner bottom of the collection box 2, mix it with the rainwater, then control the second solenoid valve 14 to open and discharge it. After completion, control the second solenoid valve 14 to close, control the first solenoid valve 13 to open, and the collected rainwater enters the measuring cylinder 9 through the pipeline. Under the principle of communicating vessels, the height and bottom area of the water in the collection box 2 and the water in the measuring cylinder 9 are the same. Read the data according to the scale on the front side of the measuring cylinder 9, and calculate and obtain the rainfall in a certain period of time. After the measurement, control the second solenoid valve 14 to open and drain the water in the device.

[0039] If it is necessary to measure the rainfall from the beginning of the rain, it is necessary to inject water into the collection box 2 before the rain, start the third motor 701, mix the water with the sand deposited and adhered to the inner bottom of the collection box 2, then open the second solenoid valve 14 to drain the dirty water, and then close the second solenoid valve 14 and open the first solenoid valve 13 to wait for the rain to come. Of course, a water pump controlled by wireless or wired can be configured to inject water into the collection box 2 before the rain.

[0040] When specifically setting, refer to Figure 1 In an embodiment, for the convenience of calculation, the cross-sectional area of the lower part of the inner cavity of the collection box 2 can be made equal to the cross-sectional area of the inner cavity of the measuring cylinder 9, and the sum of the two is equal to the area of the upper opening of the collection box 2 (denoted as S). And measure in advance the volume of the part of the sand removal mechanism 7 in the collection box 2 (denoted as V1), and measure in advance the cavity volume of the pipeline where the first solenoid valve 13 is installed (denoted as V2). If the actual rainfall after closing the second solenoid valve 14 is H0, then it is shown that the water level height in the measuring cylinder 9 is H1 = (H*S + V1 - V2) / S. The scale values can be calibrated according to this formula, so that the scale values corresponding to the water level line are the same as the values of the actual rainfall, which is convenient for reading.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A rain gauge for measuring rainfall in meteorological monitoring, characterized in that, Including: A bottom plate (1) with a collection box (2) and a measuring cylinder (9) fixedly installed on the top. A support plate (3) is fixedly installed on the outer surface of one side of the collection box (2). The top of the collection box (2) is open, and a retaining net (11) is arranged at the open top; A cleaning mechanism (4) is arranged on the top of the support plate (3). The cleaning mechanism (4) includes a first sliding rod (401), a sliding plate (402), a first motor (403) and a first gear (404). The first sliding rod (401) is fixedly installed on the top of the support plate (3). A hollow sliding plate (402) is movably sleeved on the first sliding rod (401). A first motor (403) is fixedly installed on one side of the sliding plate (402). A first gear (404) is rotatably installed between the inner walls on both sides of the sliding plate (402). The output shaft of the first motor (403) is fixedly connected to the first gear (404); A vibration mechanism (6) and a sand removal mechanism (7) are both located inside the collection box (2), and the vibration mechanism (6) is located above the sand removal mechanism (7); The cleaning mechanism (4) further includes a toothed plate (405), a connecting rod (406), a cleaning roller (407), a slider (408) and a second sliding rod (409). The toothed plate (405) is fixedly installed on the top of the support plate (3). The first gear (404) meshes with the toothed plate (405). The other side of the first sliding rod (401) is rotatably installed with a connecting rod (406). One end of the connecting rod (406) is fixedly installed with a cleaning roller (407). The second sliding rod (409) is fixedly installed on the top of the collection box (2). The slider (408) is movably sleeved on the second sliding rod (409), and the slider (408) is rotatably connected to one end of the cleaning roller (407); The vibration mechanism (6) includes a second motor (601), a first bevel gear (602), a second bevel gear (603), a turntable (604) and an elastic sheet (605). A water collecting hopper (5) is fixedly installed on the inner wall of the collection box (2). The second motor (601) is fixedly installed on the collection box (2). The first bevel gear (602) is rotatably installed on one side inner wall of the collection box (2). The output shaft of the second motor (601) is fixedly connected to the first bevel gear (602) through a coupling. The second bevel gear (603) is rotatably installed between the front and rear side inner walls of the collection box (2). The second bevel gear (603) meshes with the first bevel gear (602). The turntable (604) is fixedly installed on the rear side or the front side of the second bevel gear (603). The elastic sheet (605) is fixedly installed on the outer surface of the turntable (604); The sand removal mechanism (7) includes a third motor (701), a rotating rod (702), a hanging plate (703), a second gear (704), a toothed ring (705) and a cleaning brush (706). A third motor (701) is fixedly installed inside the bottom plate (1), and a rotating rod (702) is rotatably installed at the inner bottom of the collection box (2). The output shaft of the third motor (701) is fixedly connected to the rotating rod (702) through a coupling. Two groups of hanging plates (703) are fixedly installed on the outer surface of the rotating rod (702). One group of second gears (704) is rotatably installed at the bottom of each of the two groups of hanging plates (703). A toothed ring (705) is fixedly installed on the inner wall of the collection box (2). The two groups of second gears (704) are engaged with the toothed ring (705). One group of cleaning brushes (706) is fixedly installed at the bottom of each of the two groups of second gears (704).

2. The rainfall device for meteorological monitoring according to claim 1 for measuring rainfall, characterized in that: Two groups of pipes are provided on the inner wall of the collection box (2), and a first solenoid valve (13) and a second solenoid valve (14) are correspondingly arranged in the two groups of pipes. The inside of the collection box (2) communicates with the inside of the measuring cylinder (9) through a group of pipes provided with the first solenoid valve. A drain pipe (15) is fixedly installed on the outer surface of one side of the collection box (2), and the drain pipe (15) communicates with the inside of the collection box (2) through the other group of pipes.

3. The rain gauge for meteorological monitoring according to claim 2 for measuring rainfall, characterized in that: An installation hole is provided on the front side of the measuring cylinder (9), and a water level window is inlaid in the installation hole. Scales are provided on the front side of the measuring cylinder (9).

4. A rainfall device for measuring rainfall in meteorological monitoring according to claim 3, characterized in that: A support mechanism (8) is provided on the bottom plate (1). The support mechanism (8) includes support rods (801), sleeve plates (802), support plates (803) and limit screws (804). Two groups of storage grooves are provided on the front and rear sides of the bottom plate (1). One group of support rods (801) is rotatably installed in each of the four groups of storage grooves. One group of sleeve plates (802) is fixedly installed at the bottom of each of the four groups of support rods (801). One group of support plates (803) is provided inside each of the four groups of sleeve plates (802). One group of through grooves is provided at the bottom of each of the four groups of sleeve plates (802). Each of the four groups of support plates (803) extends to the bottom of the sleeve plate (802) through the through groove. Two groups of slots arranged vertically are provided on one side of each of the four groups of support plates (803). One group of limit screws (804) is threadedly installed on the outer surface of one side of each of the four groups of sleeve plates (802). Each of the four groups of limit screws (804) penetrates through the four groups of sleeve plates (802) and fits with the inner wall of the slot.

5. The rain gauge for meteorological monitoring according to claim 1, wherein: Two groups of mounting blocks (10) are provided on the top of the collection box (2). A retaining net (11) is fixedly installed between the two groups of mounting blocks (10). One group of mounting screws (12) is provided on the top of each of the two groups of mounting blocks (10). One group of mounting holes is provided on each of the two groups of mounting blocks (10). Each of the two groups of mounting screws (12) is threadedly installed on the top of the collection box (2) through the through hole.

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