Automatic lifting bird-proof device for regulating reservoir and its use method

Abstract

The present invention relates to the technical field of regulating and storage tanks, and discloses an automatic lifting bird-proofing device for regulating and storage tanks and a method for using the device. The device comprises a bird-proofing assembly, comprising: a mounting frame provided on the inner side of the reservoir; a protective cover provided on the top of the mounting frame; a bottom frame provided on the bottom of the mounting frame; through slots symmetrically provided on the top of the bottom frame; a filter hinged on the inner side of the through slots; a collection frame symmetrically provided on the bottom of the bottom frame, and a lifting assembly for lifting the protective cover to collect impurities dropped during the lifting process into the collection frame. The present invention can solve the problem that existing regulating and storage tank bird-proofing devices are inconvenient for cleaning algae or duckweed.

Description

Technical Field

[0001] The invention belongs to the technical field of water reservoir equipment, and particularly relates to an automatic lifting bird-proofing device for a regulating reservoir and a use method thereof. Background Art

[0002] The storage tank can temporarily store the peak flow of rainwater runoff, and then slowly discharge the rainwater from the storage tank after the maximum flow drops. This can not only avoid rainwater peaks and realize rainwater recycling, but also prevent the pollution of the receiving water body by initial rainwater, and play a positive role in drainage scheduling between drainage areas.

[0003] At the regulating reservoir equipment station, when it rains, the reservoir inlet gate is opened to allow water to flow into the reservoir, and the screen machine is turned on at the same time. In this mode, on rainy days, the regulating reservoir collects initial rainwater from the surface, and the rainwater enters the regulating reservoir through pipes. When the water level in front of the pool reaches a certain height, the valve in front of the regulating reservoir is controlled to open, allowing rainwater to enter the regulating reservoir. When the water level in the regulating reservoir reaches a certain height, the regulating reservoir inlet valve is closed, and the screen machine is turned off at the same time. When the water level in the regulating reservoir reaches the predetermined or maximum water level, the regulating reservoir inlet valve must be closed. When the rainfall is heavy, the flood control valve must also be opened to discharge the rainwater into the river. On sunny days, the initial rainwater in the regulating reservoir is lifted to the sewage pipe. When the regulating reservoir is emptied to a certain water level, the lifting pump is turned off, and the emptying is completed. In this mode, when the regulating reservoir needs to be emptied for air conditioning on sunny days or emptied for backwashing on rainy days, the lifting pump is turned on to transport the initial rainwater in the regulating reservoir to the sewage network. Generally, the emptying time should be the low period of sewage volume in the pipeline network. When the emptying reaches a certain water level, the lifting pump is turned off.

[0004] The installation of protective nets for reservoirs depends on the location and ecological environment. For example, if a reservoir is located in an area with frequent bird activity, particularly near migratory routes or habitats, a net should be installed to prevent birds from interfering with its normal operation. Furthermore, to prevent birds and other plants and animals from entering the reservoir, and to regulate and store water resources, water quality must be maintained. Therefore, a net is installed to protect the normal operation of the reservoir.

[0005] Reference application number CN202022633997.8 A regulating reservoir and a bird-proofing device for the regulating reservoir, in which the water surface of the regulating reservoir is covered by a light-transmitting cover. There is a gap between the light-transmitting cover and the inner wall of the regulating reservoir to prevent water from accumulating on the surface of the light-transmitting cover, and there is no support for birds to stand in the gap, thereby preventing birds from entering the regulating reservoir, thereby achieving a bird-proofing effect.

[0006] However, the references do not have the processing capabilities for algae growth and are unable to achieve the effect of timely removal of contaminants and impurities.

[0007] Therefore, the present invention proposes an automatic lifting bird-proofing device for a storage tank and a method for using the device. Summary of the Invention

[0008] (1) Technical problems solved

[0009] In response to the shortcomings of the existing technology, the present invention provides an automatic lifting bird-proofing device for a storage pond, which has the advantage of being easy to clean algae inside the storage pond, and solves the problem that the existing bird-proofing device for the storage pond is not convenient for cleaning algae or duckweed.

[0010] (2) Technical solution

[0011] To achieve the above object, the present invention provides the following technical solutions:

[0012] A bird-proofing device for an automatic lifting reservoir includes a bird-proofing component; the bird-proofing component includes:

[0013] A water reservoir, wherein a volume cavity is provided in the water reservoir, and a mounting frame is installed inside the volume cavity;

[0014] A protective cover is installed on the top of the mounting frame;

[0015] The bottom frame is installed at the bottom of the mounting frame; the mounting frame is located in the middle of the bottom frame and has through slots symmetrically opened on both sides;

[0016] The filter plate is hinged to the inner side of the through slot, and the hinged position is close to the side of the mounting frame;

[0017] The collecting frame is symmetrically mounted on the bottom of the bottom frame, and the top of the collecting frame is open;

[0018] A lifting assembly is installed on the water reservoir, and the lifting assembly includes:

[0019] Fixed rods are symmetrically installed on both sides of the top of the water tank;

[0020] A motor, wherein the body of the motor is fixedly mounted on the upper portion of the fixing rod;

[0021] The take-up reel is installed on the side of the fixed rod facing away from the motor and is connected to the output shaft of the motor;

[0022] a rope, mounted on the take-up drum;

[0023] a hook mounted on one end of the rope;

[0024] A connecting plate, located outside the protective cover and connected to the mounting frame;

[0025] A hanging ring, fixedly installed on the top of the connecting plate;

[0026] Brush plate, fixedly installed on the outside of the connecting plate;

[0027] The alarm is symmetrically arranged on the fixing rod.

[0028] In a further technical solution, the protective cover is bent, and the mounting frame includes a middle plate, a horizontal plate and a vertical plate. The protective cover is fixedly connected to the middle plate, the two sides of the protective cover are fixedly connected to the vertical plates, and the side of the vertical plate facing away from the protective cover is fixedly connected to the connecting plate; the bottom of the vertical plate is fixedly connected to the bottom frame; the collection frame is provided in two parallel groups in the volume cavity, and the length of the bottom frame is not less than the spacing between the two groups of collection frames.

[0029] In a further technical solution, brush plates are installed on both sides of the top of each group of connecting plates, and the brush plates on both sides are located on both sides of the fixing rod;

[0030] The two sets of motors are symmetrically installed facing each other, and the two sets of take-up reels, ropes, hooks, and hanging rings are located between the two sets of fixed rods.

[0031] In a further technical solution, an auxiliary component is provided on the water reservoir, and the auxiliary component includes a support member, a cleaning member and a limit plate. The support member is suitable for connecting the water reservoir and the fixed rod; the cleaning member is suitable for cleaning the alarm on the fixed rod; the limit plate is installed on the inner side of the water reservoir, and the top is fixedly connected to the collection frame.

[0032] In a further technical solution, two groups of the limiting plates are provided and are respectively located on both sides of the bottom frame, and the height of the limiting plates is lower than the height of the inner wall of the volume cavity of the water reservoir.

[0033] In a further technical solution, the cleaning member includes a protrusion, and the fixing rod is circumferentially provided with a protrusion, and the protrusion is suitable for movably abutting the brush plate when the brush plate is raised or lowered.

[0034] In a further technical solution, the support member includes a concave frame 1, a concave frame 2 and a connecting rod, the concave frame 1 is connected to the protrusion on the fixed rod; the concave frame 1 is hinged to the top of the connecting rod; the concave frame 2 is hinged to the bottom of the connecting rod, and the bottom of the concave frame 2 is fixedly installed on the water tank.

[0035] In a further technical solution, the auxiliary component also includes a protective shell, which is fixedly installed on the fixing rod and wraps the motor.

[0036] In a further technical solution, the auxiliary component further includes a monitor, which is arranged on the top of the fixing rod, and the output end of the monitor is suitable for facing the inner side of the volume cavity.

[0037] The take-up reel is an I-shaped reel, and a sponge brush is installed on the outer side of the take-up reel. The sponge brush is suitable for cleaning the top monitor as the take-up reel rotates.

[0038] A method for using an automatic lifting bird-proofing device for a storage tank, comprising the following steps:

[0039] Step 1: When it is necessary to clean algae or duckweed inside the water reservoir, the motor provided on one side of the fixed rod is started by an external power supply to rotate, thereby driving the take-up reel to rotate;

[0040] The rope is put away, and the hook at the bottom of the rope is hung on the inner side of the hanging ring to lift the entire protective cover. A mounting frame is provided at the bottom of the protective cover, a bottom frame is provided at the bottom of the mounting frame, and a filter plate is hinged on the inner side of the bottom frame; when the filter plate is tilted, it tilts to the top of the collection frame;

[0041] As the protective cover is lifted, the filter plate drives the duckweed or algae on the water surface of the reservoir to rise, and the duckweed or algae will roll down into the collection frame through the inclined filter plate for subsequent processing. The other part will accumulate on the surface of the filter plate, which is then easy for staff to clean up.

[0042] Step 2: After cleaning, start the motor with an external power supply to reverse the rotation so that the protective cover can be lowered to prevent birds from entering.

[0043] Step 3: As the protective cover rises and falls, it also drives the brush plate to clean the surface of the alarm to prevent a large amount of dust from adhering to the surface of the alarm and affecting the service life of the alarm;

[0044] When the brush plate passes through the convex block, the convex block abuts against the brush plate to clean the working surface of the brush plate; and as the take-up drum rotates, the working surface of the monitor is cleaned. Beneficial effects

[0045] The bird-proofing device for the regulating reservoir starts a motor to raise the entire protective cover through a rope. Since a bottom frame is provided at the bottom of the mounting frame and a filter is hinged on the inner side of the bottom frame, the filter can be tilted to prevent it from reaching the top of the collection frame. In this way, when the protective cover is lifted, the filter can drive the duckweed or algae on the water surface of the reservoir to rise. If there are too many, they will roll into the inside of the collection frame through the tilted filter, which is convenient for subsequent processing. The other part will accumulate on the surface of the filter, which is convenient for staff to clean. While preventing birds, the device is also convenient for cleaning algae or duckweed inside the reservoir, avoiding a large amount of algae and duckweed that is difficult to clean, resulting in clogging of the water pipe during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0047] Figure 1 This is a front structural diagram of the automatic lifting bird-proofing device for a storage tank according to the present invention;

[0048] Figure 2 This is a schematic diagram of a partial structure of a water reservoir according to the present invention from a top view (fixing rods and components are not shown);

[0049] Figure 3 This is a schematic diagram of the bottom frame structure from above of the present invention;

[0050] Figure 4 This is a structural diagram of the brush plate and hanging ring on the connecting plate of the present invention;

[0051] Figure 5 It is a structural schematic diagram of the concave frame 1, the concave frame 2 and the connecting rod of the present invention.

[0052] In the picture:

[0053] 1. Bird-proof assembly; 11. Water reservoir; 12. Mounting frame; 13. Protective cover; 14. Bottom frame; 15. Through slot; 16. Filter; 17. Collection frame;

[0054] 2. Lifting assembly; 21. Fixing rod; 22. Motor; 23. Take-up reel; 24. Rope; 241. Hook; 25. Connecting plate; 251. Hanging ring; 26. Brush plate; 27. Alarm;

[0055] 3. Auxiliary components; 31. Limiting plate; 32. Bump; 33. Protective shell; 34. Monitoring mechanism; 35. Concave frame 1; 36. Concave frame 2; 37. Connecting rod; 38. Sponge brush. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0057] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0058] The storage tank can temporarily store the peak flow of rainwater runoff, and then slowly discharge the rainwater from the storage tank after the maximum flow drops. This can not only avoid rainwater peaks and realize rainwater recycling, but also prevent the pollution of the receiving water body by initial rainwater, and play a positive role in drainage scheduling between drainage areas.

[0059] Example 1

[0060] See also Figure 1-5The figure shows an implementation scheme of the present invention. The embodiment of the present application provides an automatic lifting bird-proof device for a regulating reservoir. When it needs to be used, it is only necessary to start the motor 22 to lift the entire protective cover 13 through the rope 24. Since a bottom frame 14 is provided at the bottom of the mounting frame 12, and a filter plate 16 is hinged on the inner side of the bottom frame 14, the filter plate 16 can be placed obliquely on the top of the collection frame 17. In this way, when the protective cover 13 is lifted, the filter plate 16 can drive the duckweed or algae on the water surface of the reservoir 11 to rise. If there are too many, they will roll into the inside of the collection frame 17 through the inclined filter screen, which is convenient for subsequent processing. The other part will accumulate on the surface of the filter plate 16, which is then convenient for the staff to clean. While preventing birds, the device is also convenient for cleaning the algae or duckweed inside the reservoir, avoiding a large amount of algae and duckweed that is difficult to clean, resulting in blockage of the water pipe during subsequent use.

[0061] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0062] Combine Figure 1-Figure 3 The embodiment of the present application includes a bird-proofing assembly 1; the bird-proofing assembly 1 includes: a water reservoir 11 having a mounting frame 12 disposed inside thereof; a protective cover 13 disposed on the top of the mounting frame 12; a bottom frame 14 disposed on the bottom of the mounting frame 12; through slots 15 symmetrically opened on the top of the bottom frame 14; a filter plate 16 hinged to the inner side of the through slot 15; and a collection frame 17 symmetrically disposed on the bottom of the bottom frame 14.

[0063] A lifting assembly 2 is provided on the water tank 11, and the lifting assembly 2 includes: a fixed rod 21 symmetrically arranged on the top of the water tank 11; a motor 22 is arranged on the fixed rod 21; a take-up drum 23 is arranged on the fixed rod 21 and connected to the output shaft of the take-up drum 23; a rope 24 is arranged on the take-up drum 23; a hook 241 is arranged at one end of the rope 24; a connecting plate 25 is arranged on the protective cover 13; a hanging ring 251 is arranged on the connecting plate 25; a brush plate 26 is symmetrically arranged on the connecting plate 25; and an alarm 27 is symmetrically arranged on the fixed rod 21.

[0064] When it is necessary to clean the algae or duckweed inside the water reservoir 11, the motor 22 arranged on one side of the fixed rod 21 is started by an external power supply to rotate, so that the take-up drum 23 is driven to rotate, so that the rope 24 can be taken up. Since the hook 241 arranged at the bottom of the rope 24 is hung on the inner side of the hanging ring 251, the entire protective cover 13 can be lifted up. Since a mounting frame 12 is provided at the bottom of the protective cover 13, a bottom frame 14 is provided at the bottom of the mounting frame 12, and a filter plate 16 is hinged on the inner side of the bottom frame 14, the filter screen can be tilted to prevent it from reaching the top of the collection frame 17. In this way, when the protective cover 13 is lifted, the filter plate 16 drives the duckweed or algae on the water surface of the water reservoir 11 to rise, and excessive When the bird is out of the water, the dust will accumulate on the surface of the filter plate 16 and the staff will clean it. After the cleaning is completed, the motor 22 is started by an external power supply to reverse it so that the protective cover 13 can be lowered to prevent birds. When the protective cover 13 rises and falls, it will also drive the brush plate 26 to clean the surface of the alarm 27 to prevent a large amount of dust from adhering to the surface of the alarm 27 and affecting the service life of the alarm 27. While preventing birds, the device is also convenient for cleaning algae or duckweed inside the water reservoir to avoid a large amount of algae and duckweed accumulation that makes cleaning inconvenient and causes blockage of the water pipe during subsequent use, making it safer to use.

[0065] In some embodiments, an auxiliary component 3 is provided on the water reservoir 11 , and the auxiliary component 3 includes a limiting plate 31 provided on the inner side of the water reservoir 11 .

[0066] A plurality of limit plates 31 are provided on the opposite inner surfaces of the water reservoir 11, which can limit the connecting plate 25 and prevent the protective cover 13 from shaking and colliding with other parts during lifting due to the lack of a limit mechanism.

[0067] In some embodiments, the auxiliary component 3 further includes a protrusion 32 symmetrically arranged on the fixing rod 21 .

[0068] A plurality of groups of protrusions 32 are symmetrically arranged on both sides of the fixed rod 21 , so that when the brush plate 26 is raised or lowered, the dust or debris adhering to it can be cleaned by the raised protrusions 32 , thereby preventing debris from adhering to the inner side of the brush plate 26 and affecting the cleaning of the alarm 27 .

[0069] In some embodiments, the auxiliary component 3 further includes a protective shell 33 disposed on the fixing rod 21 .

[0070] A protective shell 33 is provided on one side of the fixing rod 21 to cover the motor 22 , thereby protecting the motor 22 and preventing it from being exposed to the outside for a long time, which would affect the service life of the motor 22 .

[0071] In some embodiments, the auxiliary component 3 further includes a monitoring mechanism 34 disposed on the top of the fixing rod 21 .

[0072] A monitoring mechanism 34 is provided on the top of the fixing rod 21, so that the operator can observe the condition of the water reservoir 11 through the monitoring mechanism 34. When birds stay there, the alarm 27 can be activated in time to drive them away, thereby increasing the practical effect.

[0073] In some embodiments, as Figure 1 and Figure 5 As shown, the auxiliary component 3 also includes: a concave frame 1 35 is arranged on the fixed rod 21; a concave frame 2 36 is arranged on the top of the water reservoir 11; and both ends of the connecting rod 37 are hinged to the inner sides of the concave frame 1 35 and the concave frame 2 36 respectively.

[0074] A concave frame 1 35 and a concave frame 2 36 are respectively provided on one side of the fixing rod 21 and the top of the water reservoir 11, and a connecting rod 37 is used so that its two ends are hinged to the inner sides of the concave frame 1 35 and the concave frame 2 36 respectively, so as to support and reinforce the fixing rod 21 and increase the structural strength of the fixing rod 21.

[0075] In some embodiments, the auxiliary component 3 further includes a sponge brush 38 disposed on the outside of the take-up reel 23 .

[0076] A sponge brush 38 is provided on the outer wall of the take-up drum 23 so that when the starting motor 22 drives the take-up drum 23 to rotate, the sponge brush 38 can be driven to rotate to clean the monitoring mechanism 34, thereby preventing dust from adhering to the surface of the monitoring mechanism 34 and affecting the monitoring of the monitoring mechanism 34.

[0077] Specifically, the sponge brush 38 and the take-up reel 23 are fixed by bonding.

[0078] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0079] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic lifting bird-proof device for a storage tank, characterized by: The invention comprises a bird-proofing component (1); the bird-proofing component (1) comprises: A water reservoir (11), wherein a volume cavity is provided in the water reservoir (11), and a mounting frame (12) is installed inside the volume cavity; A protective cover (13) is mounted on the top of the mounting frame (12); A bottom frame (14) is mounted on the bottom of the mounting frame (12); the mounting frame (12) is located in the middle of the bottom frame (14) and has through slots (15) symmetrically formed on both sides; A filter plate (16) is hinged to the inner side of the through slot (15), and the hinged position is close to the side of the mounting frame (12); The collecting frame (17) is symmetrically mounted on the bottom of the bottom frame (14), and the top of the collecting frame (17) is open; A lifting assembly (2) is installed on the water reservoir (11), and the lifting assembly (2) comprises: Fixed rods (21) are symmetrically mounted on both sides of the top of the water reservoir (11); A motor (22), wherein the body of the motor (22) is fixedly mounted on the upper portion of the fixing rod (21); A take-up reel (23) is mounted on a side of the fixed rod (21) facing away from the motor (22) and is connected to an output shaft of the motor (22); A rope (24) is mounted on the take-up drum (23); A hook (241) is mounted on one end of the rope (24); A connecting plate (25) is located outside the protective cover (13) and is connected to the mounting frame (12); A hanging ring (251) is fixedly mounted on the top of the connecting plate (25); A brush plate (26) is fixedly mounted on the outside of the connecting plate (25); An alarm (27) is symmetrically arranged on the fixing rod (21); The protective cover (13) is bent, and the mounting frame (12) includes a middle plate, a horizontal plate, and a vertical plate. The protective cover (13) is fixedly connected to the middle plate, and both sides of the protective cover (13) are fixedly connected to the vertical plates. The side of the vertical plate facing away from the protective cover (13) is fixedly connected to the connecting plate (25); the bottom of the vertical plate is fixedly connected to the bottom frame (14); and two parallel groups of collecting frames (17) are provided in the volume chamber, and the length of the bottom frame (14) is not less than the spacing between the two groups of collecting frames (17).

2. The automatic lifting bird-proof device for a storage tank according to claim 1, characterized in that: Brush plates (26) are installed on both sides of the top of each group of connecting plates (25), and the brush plates (26) on both sides are located on both sides of the fixing rod (21); The two sets of motors (22) are symmetrically mounted facing each other, and the two sets of take-up reels (23), ropes (24), hooks (241), and hanging rings (251) are located between the two sets of fixed rods (21).

3. The automatic lifting bird-proof device for a regulating reservoir according to claim 2, characterized in that: An auxiliary component (3) is provided on the water reservoir (11), and the auxiliary component (3) comprises a support member, a cleaning member, and a limiting plate (31). The support member is suitable for connecting the water reservoir (11) and the fixing rod (21); the cleaning member is suitable for cleaning the alarm (27) on the fixing rod (21); and the limiting plate (31) is installed on the inner side of the water reservoir (11), and the top is fixedly connected to the collection frame (17).

4. The automatic lifting bird-proofing device for a regulating reservoir according to claim 3, characterized in that: Two groups of the limiting plates (31) are provided and are respectively located on both sides of the bottom frame (14). The height of the limiting plates (31) is lower than the height of the inner wall of the volume cavity of the water reservoir (11).

5. The automatic lifting bird-proofing device for a regulating reservoir according to claim 4, characterized in that: The cleaning piece comprises a protrusion (32), and the protrusion (32) is circumferentially mounted on the fixing rod (21). The protrusion (32) is adapted to movably abut against the brush plate (26) when the brush plate (26) is raised or lowered.

6. The automatic lifting bird-proofing device for a regulating reservoir according to claim 5, characterized in that: The support member comprises a concave frame 1 (35), a concave frame 2 (36) and a connecting rod (37), wherein the concave frame 1 (35) is connected to the protrusion (32) on the fixed rod (21); the concave frame 1 (35) is hinged to the top of the connecting rod (37); the concave frame 2 (36) is hinged to the bottom of the connecting rod (37), and the bottom of the concave frame 2 (36) is fixedly mounted on the water reservoir (11).

7. The automatic lifting bird-proofing device for a regulating reservoir according to claim 4, characterized in that: The auxiliary component (3) further includes a protective shell (33) fixedly mounted on the fixing rod (21) and wrapping the motor (22).

8. The automatic lifting bird-proofing device for a regulating reservoir according to claim 7, characterized in that: The auxiliary component (3) further includes a monitoring mechanism (34) disposed on the top of the fixing rod (21), wherein the output end of the monitoring mechanism (34) is adapted to face the inner side of the volume chamber; The take-up reel (23) is an I-shaped reel. A sponge brush (38) is installed on the outside of the take-up reel (23). The sponge brush (38) is suitable for cleaning the top monitoring mechanism (34) as it rotates with the take-up reel (23).

9. A method for using the automatic lifting bird-proofing device for a storage tank as claimed in claim 8, characterized in that: These include: Step 1, when it is necessary to clean the algae or duckweed inside the water reservoir (11), the motor (22) provided on one side of the fixed rod (21) is started by an external power supply to rotate, thereby driving the take-up reel (23) to rotate; The rope (24) is folded up, and the hook (241) provided at the bottom of the rope (24) is hung on the inner side of the hanging ring (251), so that the entire protective cover (13) is lifted up. Since a mounting frame (12) is provided at the bottom of the protective cover (13), a bottom frame (14) is provided at the bottom of the mounting frame (12), and a filter plate (16) is hinged on the inner side of the bottom frame (14); when the filter plate (16) is tilted, it tilts to the top of the collection frame (17); When the protective cover (13) is lifted, the filter plate (16) drives the duckweed or algae on the water surface of the reservoir (11) to rise, and the duckweed or algae rolls down into the inside of the collection frame (17) through the inclined filter plate (16) for subsequent processing, and the other part accumulates on the surface of the filter plate (16) and is then easily cleaned by the staff; Step 2, after the cleaning is completed, the motor (22) is started by an external power supply to reverse the direction so that the protective cover (13) can be lowered to play a role in preventing birds; Step 3, while the protective cover (13) rises and falls, it also drives the brush plate (26) to clean the surface of the alarm (27), so as to prevent a large amount of dust from adhering to the surface of the alarm (27) and affecting the service life of the alarm (27); When the brush plate (26) passes through the protrusion (32), the protrusion (32) abuts against the brush plate (26), cleaning the working surface of the brush plate (26); and as the take-up reel (23) rotates, cleaning the working surface of the monitoring mechanism (34).

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