A numerical control management device for drip irrigation of zelkova container seedlings

Abstract

The present application relates to the technical field of seedling raising facilities accessories, and particularly relates to a beech container seedling spraying numerical control management device. The beech container seedling spraying numerical control management device provided by the present application solves the technical problem that the beech container seedling is prone to tilting in the spraying process. The beech container seedling spraying numerical control management device comprises a water storage tank, a water supply pipe, a water pump and a spray head. The water pump supplies water in the water storage tank to the spray head through the water supply pipe. The spray head comprises a vertical pipe, and the vertical pipe is further provided with a support frame for keeping the container seedling in a vertical state. Under the action of gravity, the counterweight device rotates the connecting ball on the fixed frame to keep the vertical pipe in a vertical state. The support frame is arranged on the vertical pipe. Since the vertical pipe is always in a vertical state, the support frame can effectively fix the container seedling, so that the beech container seedling is always in a vertical state, and the beech container seedling is prevented from tilting.

Description

Technical Field

[0001] This invention relates to the field of seedling facility accessories technology, and in particular to a CNC management device for sprinkler irrigation of zelkova container seedlings. Background Technology

[0002] The Zelkova serrata, also known as the blood beech, golden silk beech, sand beech, and hairy-veined beech, is a deciduous tree belonging to the genus Zelkova in the family Ulmaceae. It can reach a height of 30 meters. The crown is obovate-umbel-shaped. The bark is brownish-brown, smooth, and peels off in thin flakes with age. The leaves are simple, alternate, ovate, elliptic-ovate, or ovate-lanceolate, with an acute or acuminate apex and serrated margins. The upper surface of the leaves is slightly rough, while the lower surface is pale green and hairless. The leaves change color in autumn, with two varieties: yellow and red. The nuts are relatively small. It is a Class II protected plant in China. Widely distributed in China, it grows slowly and has excellent timber quality, making it a valuable hardwood species.

[0003] In recent years, with increased efforts in ecological afforestation of precious timber tree species, traditional field cultivation of seedlings remains the mainstream method, resulting in an overall low level of seedling quality. The use of container bag seedling cultivation has gradually become more widespread. Container bag seedling cultivation involves placing Zelkova serrata propagation material inside container bags for seedling cultivation; it is also called container seedling cultivation.

[0004] When containerized Zelkova seedlings are raised in arid regions, irrigation is still necessary. To save costs, sprinkler irrigation is usually used. This method requires the installation of risers. During sprinkler irrigation, the water impacts the soil inside the container bag. Since the soil inside the container bag is usually loose and easily lost, the Zelkova seedlings are prone to tilting during sprinkler irrigation. Summary of the Invention

[0005] The present invention provides a CNC management device for the sprinkler irrigation of container seedlings of Zelkova serrata, which solves the technical problem that container seedlings of Zelkova serrata are prone to tilting during the sprinkler irrigation process in the prior art.

[0006] Some implementation schemes for solving the above-mentioned technical problems include:

[0007] A CNC management device for sprinkler irrigation of container seedlings of Zelkova serrata includes a water storage tank, a water supply pipe, a water pump, and a sprinkler head. The water pump supplies water from the water storage tank to the sprinkler head through the water supply pipe.

[0008] The CNC management device for sprinkler irrigation of beech seedlings also includes a controller for controlling the operation of the water pump and a water meter for detecting the water output of the water pump. The water meter communicates with the controller. A water pressure gauge is installed in the water supply pipe to detect the water pressure inside the water supply pipe. The water pressure gauge communicates with the controller. The water supply pipe includes a vertical section, in which the water meter is installed. The water supply pipe also includes a horizontal section connected to the sprinkler head. The height of the horizontal section is higher than that of the vertical section, and the horizontal section communicates with the vertical section.

[0009] The nozzle includes a vertical tube with a nozzle. The vertical tube is connected to the water supply pipe via a connecting hose. The nozzle also includes a fixing bracket for fixing the vertical tube. The vertical tube is rotatably connected to the fixing bracket via a connecting ball. A counterweight is provided at the lower end of the vertical tube to keep the vertical tube in a vertical position.

[0010] The counterweight includes a rainwater receiving cover, which is connected to the water storage tank through a water collection channel. Water in the water collection channel flows into the water storage tank under its own weight.

[0011] The vertical tube is also equipped with a support frame to keep the container seedlings in a vertical position.

[0012] Preferably, the counterweight further includes a counterweight block, which is an integral structure with the vertical tube, and the nozzle is detachably connected to the upper end of the vertical tube.

[0013] Preferably, the fixing frame includes legs that are evenly arranged along the circumference of the vertical pipe, the water receiving cover is a frustum-shaped structure with the larger end facing upward, the water receiving cover and the vertical pipe are an integral structure, the water receiving cover is provided with a relief groove, a part of the legs is located in the relief groove, and the relief groove is elongated.

[0014] Preferably, the fixing frame is provided with a connecting groove that mates with the connecting ball, the depth of the connecting groove is less than the diameter of the connecting ball, the connecting ball and the vertical tube are an integral structure, and the center of the connecting ball passes through the axis of the vertical tube.

[0015] Preferably, the fixing frame includes a left half and a right half, both of which are provided with a recess forming the connecting groove, and both of which are provided with a support leg, and the left half and the right half are connected by bolts.

[0016] Preferably, the support frame includes a support rod, which is integral with the vertical tube and is perpendicular to the vertical tube. The support rod is equipped with a positioner for positioning the seedling container.

[0017] Preferably, the positioner includes a first half disposed on the support rod and a second half disposed on the first half, the second half being fixed to the first half by bolts, the first half and the support rod being an integral structure, and a positioning hole being formed between the first half and the second half, the positioning hole having a circular cross-sectional shape.

[0018] Preferably, the cross-sectional shape of the support rod is polygonal, and the support rod is a hollow structure.

[0019] Preferably, a portion of the water supply pipe is disposed within the water collection tank, and the counterweight is provided with a drain hole, through which water in the water receiving cover enters the water collection tank.

[0020] Preferably, a portion of the water collection trough extends into the water storage tank. The portion of the water collection trough located inside the water storage tank is provided with a buffer trough to prevent water in the water collection trough from impacting the water storage tank. Water in the water collection trough overflows into the water storage tank through the buffer trough. The water collection trough is also provided with a positioning seat to prevent it from tipping over. The positioning seat is provided with a recess to accommodate the water collection trough. A portion of the water collection trough is located within the recess. The outer wall of the water collection trough is provided with a positioning protrusion. The positioning protrusion contacts the upper end face of the positioning seat. The cross-sectional shape of the water collection trough is U-shaped.

[0021] Compared with the prior art, the present invention has the following technical effects:

[0022] 1. The sprinkler head includes a vertical pipe and a fixed frame. The vertical pipe is rotatably connected to the fixed frame via a connecting ball. The vertical pipe is also equipped with a counterweight. Under the action of gravity, the counterweight causes the connecting ball to rotate on the fixed frame so that the vertical pipe is always in a vertical state. A support frame is installed on the vertical pipe. Since the vertical pipe is always in a vertical state, the support frame can effectively stabilize the container seedlings, keeping the container seedlings of Zelkova serrata in a vertical state and preventing the container seedlings of Zelkova serrata from tilting.

[0023] 2. By placing the water meter in the vertical section, when the water pump supplies water to the water supply pipe, the water in the vertical section is in a full-pipe state under the action of the water pump and atmospheric pressure, which improves the metering accuracy of the water meter and thus improves the metering accuracy of the irrigation water volume during sprinkler irrigation.

[0024] By setting a water pressure gauge, when some sprinkler heads become clogged, the water pressure in the supply pipe will change because the water pump's output pressure is constant. The water pressure gauge detects this pressure fluctuation and sends a signal to the controller, which can then provide appropriate alerts. Alternatively, personnel can determine if some sprinkler heads are clogged simply by observing fluctuations in the water pressure gauge reading, which is beneficial for the maintenance of the sprinkler control management device.

[0025] 3. While positioning the vertical pipe, the fixing frame can also position the Zelkova sapling through the support frame, preventing the Zelkova sapling from tilting, simplifying the structure of the sprinkler head and reducing the cost of using the sprinkler head.

[0026] 4. Installing a rainwater collection trough allows rainwater to be collected and stored in a water tank, reducing the cost of Zelkova serrata seedlings and saving water resources.

[0027] 5. By setting up a water collection cover, more rainwater can be collected. At the same time, the water collection cover also has a certain counterweight effect, which helps to keep the vertical pipe in a vertical state and optimizes the performance of the fixing frame. Attached Figure Description

[0028] For illustrative purposes, several embodiments of the invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the invention.

[0029] Figure 1 This is a schematic diagram of the present invention.

[0030] Figure 2 This is a cross-sectional view of the water supply pipe and the water collection tank after assembly.

[0031] Figure 3 This is the front view of the nozzle.

[0032] Figure 4 This is an isometric view of the nozzle at its first angle.

[0033] Figure 5 This is an isometric view of the nozzle at the second angle.

[0034] Figure 6 This is a schematic diagram of the first angle of the vertical pipe.

[0035] Figure 7 This is a schematic diagram of the second angle of the vertical tube.

[0036] Figure 8 This is a schematic diagram of the first angle of the fixed frame.

[0037] Figure 9 This is a schematic diagram of the second angle of the fixed frame.

[0038] In the picture:

[0039] 1. Water storage tank.

[0040] 2. Water supply pipe; 21. Vertical section; 22. Horizontal section; 23. Buffer groove; 24. Positioning seat; 25. Positioning protrusion.

[0041] 3. Water pump.

[0042] 4. Nozzle, 41. Vertical pipe, 411. Nozzle.

[0043] 42. Connect the hose.

[0044] 43. Fixture; 431. Support leg; 432. Connecting groove; 433. Left half; 434. Right half.

[0045] 44. Connecting ball.

[0046] 45. Counterweight; 451. Water collection cover; 4511. Leaving groove; 452. Counterweight block.

[0047] 46. ​​Water collection trough.

[0048] 47. Support frame; 471. Support rod; 472. Positioner; 473. First half; 474. Second half; 475. Positioning hole.

[0049] 5. Controller.

[0050] 6. Water meter.

[0051] 7. Water pressure gauge. Detailed Implementation

[0052] The specific embodiments shown below are intended to describe various configurations of the subject matter of the invention and are not intended to represent the only configuration in which the subject matter of the invention can be practiced. The specific embodiments include particular details intended to provide a thorough understanding of the subject matter of the invention. However, it will be clear and apparent to those skilled in the art that the subject matter of the invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0053] Reference Figures 1 to 9 As shown, a CNC management device for sprinkler irrigation of container seedlings of Zelkova serrata includes a water storage tank 1, a water supply pipe 2, a water pump 3, and a nozzle 4. The water pump 3 supplies water from the water storage tank 1 to the nozzle 4 through the water supply pipe 2.

[0054] The CNC management device for sprinkler irrigation of beech seedlings also includes a controller 5 for controlling the operation of the water pump 3 and a water meter 6 for detecting the water output of the water pump 3. The water meter 6 communicates with the controller 5. A water pressure gauge 7 is installed in the water supply pipe 2 to detect the water pressure inside the water supply pipe 2. The water pressure gauge 7 communicates with the controller 5. The water supply pipe 2 includes a vertical section 21, and the water meter 6 is installed in the vertical section 21. The water supply pipe 2 also includes a horizontal section 22 connected to the sprinkler head 4. The height of the horizontal section 22 is higher than the height of the vertical section 21, and the horizontal section 22 communicates with the vertical section 21.

[0055] The nozzle 4 includes a vertical pipe 41, on which a nozzle 411 is provided. The vertical pipe 41 is connected to the water supply pipe 2 via a connecting hose 42. The nozzle 4 also includes a fixing bracket 43 for fixing the vertical pipe 41. The vertical pipe 41 is rotatably connected to the fixing bracket 43 via a connecting ball 44. A counterweight 45 is provided at the lower end of the vertical pipe 41 to keep the vertical pipe 41 in a vertical state.

[0056] The counterweight 45 includes a rainwater receiving cover 451, which is connected to the water storage tank 1 through a water collection channel 46. The water in the water collection channel 46 flows into the water storage tank 1 under its own gravity.

[0057] The vertical tube 41 is also provided with a support frame 47 to keep the container seedlings in a vertical position.

[0058] Whether containerized Zelkova seedlings need irrigation can be determined manually or using humidity sensors. For example, humidity sensors can be placed inside some of the containers, communicating with controller 5. Controller 5 controls the operation of water pump 3 based on the parameter values ​​detected by the humidity sensors. When configured with humidity sensors, the Zelkova containerized seedling irrigation CNC management device can achieve automated operation.

[0059] The controller 5 controls the water pump 3 to work. The water pump 3 supplies water from the water storage tank 1 to the water supply pipe 2. The water in the water supply pipe 2 enters the nozzle 4 under pressure and is finally sprayed out through the nozzle 4 to irrigate the container seedlings of the Zelkova tree.

[0060] The working time of water pump 3 can be controlled manually, or it can be controlled by controller 5 based on humidity sensor, or it can be automatically controlled by controller 5 based on timer. The timer can be integrated into controller 5 to count the working time of water pump 3 and thus determine the amount of water for irrigation.

[0061] Water meter 6 can be installed at the pumping end of water pump 3 or at the outlet end of water pump 3. The installation location of water meter 6 is not limited. To achieve higher metering accuracy, water meter 6 can be installed in the vertical section 21, ensuring that the water in the pipe section being measured by water meter 6 is in a full-pipe state, thus improving metering accuracy. A full-pipe state means that the pipe section is completely filled with water, or that the air volume within the pipe section is within a reasonable range.

[0062] The water meter 6 can be any device with water measurement capabilities in the prior art, and the connection method between the water meter 6 and the water supply pipe 2 refers to the prior art.

[0063] There can be one or more water pressure gauges 7. Water pressure gauges 7 are used to detect the water pressure in the water supply pipe 2. Since the water spray volume of the nozzle 4 and the water output of the water pump 3 are constant, under the premise that the external parameters do not change, the water pressure in the water supply pipe 2 will change after some nozzles 4 are blocked. According to the reading of water pressure gauge 7, it can be determined whether there is a blockage of nozzle 4, which is beneficial to the maintenance of the CNC management device for the sprinkler irrigation of beech seedlings.

[0064] The water pressure gauge 7 is a common water pressure measuring device in the prior art, and its working principle and connection method with the water supply pipe 2 are in accordance with the prior art.

[0065] Multiple sprinkler heads 4 can be installed on the same water supply pipe 2. There is no limit to the number of sprinkler heads 4 installed; it can be determined according to actual needs.

[0066] After the fixing frame 43 is fixed to the ground, the fixing frame 43 may tilt due to the unevenness of the ground. At this time, under the action of the counterweight 45, the counterweight 45 applies a vertical downward force to the vertical tube 41. After the vertical tube 41 bears this force, the connecting ball 44 rotates relative to the fixing frame 43, so that the vertical tube 41 always remains in a vertical state.

[0067] The support frame 47 is fixed to the vertical tube 41. Since the vertical tube 41 is always in a vertical state, the support frame 47 is in a reasonable state, so that the support frame 47 can position the container seedling and prevent the container seedling from tilting.

[0068] Container seedling tilting refers to the tilting of the trunk of a container-grown Zelkova serrata relative to the horizontal plane.

[0069] Reference Figures 3 to 9 As shown, in some embodiments, the counterweight 45 further includes a counterweight block 452, which is an integral structure with the vertical tube 41, and the nozzle 411 is detachably connected to the upper end of the vertical tube 41.

[0070] The counterweight 452 can be spherical, or it can be a frustum or other shapes. The center of gravity of the counterweight 452 should pass through the axis of the vertical tube 41.

[0071] The specific form of nozzle 411 is not limited and can be designed reasonably according to needs. Nozzle 411 is a common sprinkler accessory in the existing technology.

[0072] Reference Figures 3 to 9 As shown, in some embodiments, the fixing frame 43 includes a support leg 431, which is evenly arranged along the circumference of the vertical pipe 41. The water receiving cover 451 is a frustum-shaped structure with the larger end facing upward. The water receiving cover 451 and the vertical pipe 41 are an integral structure. The water receiving cover 451 is provided with a relief groove 4511. A part of the support leg 431 is located in the relief groove 4511, which is elongated.

[0073] By providing a relief groove 4511, the water receiving cover 451 can have a larger water receiving area, thereby receiving more rainwater.

[0074] Reference Figures 3 to 9As shown, in some embodiments, the fixing frame 43 is provided with a connecting groove 432 that mates with the connecting ball 44. The depth of the connecting groove 432 is less than the diameter of the connecting ball 44. The connecting ball 44 and the vertical tube 41 are an integral structure, and the center of the connecting ball 44 passes through the axis of the vertical tube 41.

[0075] The fixing frame 43 includes a left half 433 and a right half 434. Both the left half 433 and the right half 434 are provided with a recess forming the connecting groove 432. Both the left half 433 and the right half 434 are provided with a support leg 431. The left half 433 and the right half 434 are connected by bolts.

[0076] The mounting bracket 43 includes a left half 433 and a right half 434. The connecting ball 44 and the connecting groove 432 are easily assembled together, making the nozzle 4 easy to maintain.

[0077] Reference Figures 3 to 9 As shown, in some embodiments, the support frame 47 includes a support rod 471, which is integral with the vertical tube 41. The support rod 471 is perpendicular to the vertical tube 41, and the support rod 471 is provided with a locator 472 for positioning the seedling container.

[0078] Reference Figures 3 to 9 As shown, the positioner 472 includes a first half 473 disposed on the support rod 471 and a second half 474 disposed on the first half 473. The second half 474 is fixed to the first half 473 by bolts. The first half 473 and the support rod 471 are integral structures. A positioning hole 475 is formed between the first half 473 and the second half 474. The cross-sectional shape of the positioning hole 475 is circular.

[0079] The cross-sectional shape of the support rod 471 is polygonal, and the support rod 471 is a hollow structure.

[0080] The support rod 471 has a hollow structure, resulting in a lighter weight and easier assembly of the support frame 47. The cross-sectional shape of the support rod 471 can be rectangular or other shapes. When the cross-sectional shape of the support rod 471 is polygonal, it has higher bending strength, making it less prone to bending and extending its service life.

[0081] In some embodiments, a portion of the water supply pipe 2 is disposed within the water collection tank 46, the counterweight 45 is provided with a drain hole, and water in the water receiving cover 451 enters the water collection tank 46 through the drain hole.

[0082] Reference Figures 1 to 2As shown, a portion of the water collection trough 46 extends into the water storage tank 1. The portion of the water collection trough 46 located inside the water storage tank 1 is provided with a buffer trough 23 to prevent water in the water collection trough 46 from impacting the water storage tank 1. Water in the water collection trough 46 overflows into the water storage tank 1 through the buffer trough 23. The water collection trough 46 is also provided with a positioning seat 24 to prevent the water collection trough 46 from tipping over. The positioning seat 24 is provided with a recess to accommodate the water collection trough 46. A portion of the water collection trough 46 is located within the recess. The outer wall of the water collection trough 46 is provided with a positioning protrusion 25. The positioning protrusion 25 contacts the upper end face of the positioning seat 24. The cross-sectional shape of the water collection trough 46 is U-shaped.

[0083] The positioning protrusion 25 can be integrated with the water collection tank 46. The cross-sectional shape of the water collection tank 46 is U-shaped, which makes it easy to install the water supply pipe 2 inside the water collection tank 46, simplifying the installation structure of the water supply pipe 2 and the water collection tank 46.

[0084] The buffer tank 23 mainly serves a buffering function, making the water storage tank 1 less susceptible to impact from the water discharged into the water collection tank 46, thus giving the water storage tank 1 a longer service life.

[0085] The technical solution of the present invention and its corresponding details have been described above. It is understood that the above description is only some implementation schemes of the technical solution of the present invention, and some details may be omitted in the specific implementation.

[0086] Furthermore, in some embodiments of the above invention, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine and implement the above embodiments according to their needs to obtain a better application experience.

[0087] When implementing the subject matter of this invention, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter and drawings. Obviously, these details are still within the scope of the subject matter of this invention without departing from it.

Claims

1. A CNC management device for sprinkler irrigation of container seedlings of Zelkova serrata, characterized in that: It includes a water storage tank (1), a water supply pipe (2), a water pump (3) and a nozzle (4). The water pump (3) supplies water from the water storage tank (1) to the nozzle (4) through the water supply pipe (2). The CNC management device for the sprinkler irrigation of the beech seedling container also includes a controller (5) for controlling the operation of the water pump (3) and a water meter (6) for detecting the water output of the water pump (3). The water meter (6) communicates with the controller (5). A water pressure gauge (7) for detecting the water pressure in the water supply pipe (2) is installed inside the water supply pipe (2). The water pressure gauge (7) communicates with the controller (5). The water supply pipe (2) includes a vertical section (21). The water meter (6) is installed in the vertical section (21). The water supply pipe (2) also includes a horizontal section (22) connected to the sprinkler head (4). The height of the horizontal section (22) is higher than the height of the vertical section (21). The horizontal section (22) communicates with the vertical section (21). The nozzle (4) includes a vertical pipe (41), the vertical pipe (41) is provided with a nozzle (411), the vertical pipe (41) is connected to the water supply pipe (2) through a connecting hose (42), the nozzle (4) also includes a fixing bracket (43) for fixing the vertical pipe (41), the vertical pipe (41) is rotatably connected to the fixing bracket (43) through a connecting ball (44), and a counterweight (45) is provided at the lower end of the vertical pipe (41) to keep the vertical pipe (41) in a vertical state. The counterweight (45) includes a rainwater receiving cover (451) for receiving rainwater. The rainwater receiving cover (451) is connected to the water storage tank (1) through a water collection channel (46). The water in the water collection channel (46) flows into the water storage tank (1) under its own gravity. The vertical tube (41) is also provided with a support frame (47) to keep the container seedlings in a vertical position. The fixing frame (43) includes legs (431), which are evenly arranged along the circumference of the vertical pipe (41). The water receiving cover (451) is a frustum-shaped structure with the large end facing upward. The water receiving cover (451) and the vertical pipe (41) are an integral structure. The water receiving cover (451) is provided with a relief groove (4511). A part of the legs (431) is located in the relief groove (4511). The relief groove (4511) is long and narrow. The fixing frame (43) is provided with a connecting groove (432) that mates with the connecting ball (44). The depth of the connecting groove (432) is less than the diameter of the connecting ball (44). The connecting ball (44) and the vertical tube (41) are an integral structure. The center of the connecting ball (44) passes through the axis of the vertical tube (41).

2. The CNC management device for sprinkler irrigation of zelkova container seedlings according to claim 1, characterized in that: The counterweight (45) also includes a counterweight block (452), which is an integral structure with the vertical tube (41). The nozzle (411) is detachably connected to the upper end of the vertical tube (41).

3. The CNC management device for sprinkler irrigation of zelkova container seedlings according to claim 1, characterized in that: The fixing frame (43) includes a left half (433) and a right half (434). Both the left half (433) and the right half (434) are provided with a recess forming the connecting groove (432). Both the left half (433) and the right half (434) are provided with a support leg (431). The left half (433) and the right half (434) are connected by bolts.

4. The CNC management device for sprinkler irrigation of zelkova container seedlings according to claim 1, characterized in that: The support frame (47) includes a support rod (471), which is an integral structure with the vertical tube (41). The support rod (471) is perpendicular to the vertical tube (41), and the support rod (471) is provided with a locator (472) for positioning the seedling container.

5. The CNC management device for sprinkler irrigation of zelkova container seedlings according to claim 4, characterized in that: The positioner (472) includes a first half (473) disposed on the support rod (471) and a second half (474) disposed on the first half (473). The second half (474) is fixed to the first half (473) by bolts. The first half (473) and the support rod (471) are integral structures. A positioning hole (475) is formed between the first half (473) and the second half (474). The positioning hole (475) has a circular cross-sectional shape.

6. The CNC management device for sprinkler irrigation of zelkova container seedlings according to claim 5, characterized in that: The cross-sectional shape of the support rod (471) is polygonal, and the support rod (471) is a hollow structure.

7. The CNC management device for sprinkler irrigation of zelkova container seedlings according to claim 1, characterized in that: A portion of the water supply pipe (2) is located inside the water collection tank (46), and the counterweight (45) is provided with a drain hole. Water in the water receiving cover (451) enters the water collection tank (46) through the drain hole.

8. The CNC management device for sprinkler irrigation of zelkova container seedlings according to claim 7, characterized in that: A portion of the water collection trough (46) extends into the water storage tank (1). The portion of the water collection trough (46) located inside the water storage tank (1) is provided with a buffer trough (23) to prevent water in the water collection trough (46) from impacting the water storage tank (1). Water in the water collection trough (46) overflows into the water storage tank (1) through the buffer trough (23). The water collection trough (46) is also provided with a positioning seat (24) to prevent the water collection trough (46) from tipping over. The positioning seat (24) is provided with a recess to accommodate the water collection trough (46). A portion of the water collection trough (46) is located in the recess. The outer wall of the water collection trough (46) is provided with a positioning protrusion (25). The positioning protrusion (25) contacts the upper end face of the positioning seat (24). The cross-sectional shape of the water collection trough (46) is U-shaped.

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