CN113812331A - Water supply system for farmland - Google Patents

Abstract

The utility model belongs to the technical field of the technique that the farmland supplied water and specifically relates to a water supply system is used in farmland is related to, including seting up at subaerial well and the connecting pipe one of being connected with the well, the one end that the well was kept away from to the connecting pipe one is provided with spraying assembly, be provided with the power spare that is used for supplying water on the connecting pipe one, subaerial aqua storage tank that is provided with and is used for the water storage, be provided with in the aqua storage tank and be used for the connecting pipe two of being connected with connecting pipe one, be provided with backward flow subassembly on the aqua storage tank, backward flow subassembly includes back flow and well transit pipe, the back flow is close to spraying assembly and sets up, back flow and aqua storage tank are through transit union coupling, be provided with the filtering ponds that are used for filtering impurity on the transit pipe, be provided with the cleaning device that is used for clearing up impurity in the filtering ponds. This application has the effect of water economy resource.

Description

Water supply system for farmland

Technical Field

The application relates to the technical field of farmland water supply, in particular to a water supply system for a farmland.

Background

Farmland water supply is generally used for irrigation of farmlands, irrigation modes of farmlands comprise irrigation, common irrigation and micro-irrigation, traditional irrigation comprises furrow irrigation, flood irrigation and flood irrigation, but the conventional irrigation modes are usually large in water consumption and low in water utilization rate and are relatively unreasonable irrigation modes, so that the conventional irrigation modes are common irrigation modes, a main method is to use a water supply system for supplying water, and then spray water to the air through a spray head for irrigation.

The water supply system for the farmland in the related art comprises a reservoir and a water supply device, wherein the water supply device is connected with the reservoir, an irrigation device for irrigation is arranged on the water supply device, the water supply device leads water into the irrigation device from the reservoir, and then the irrigation device irrigates the farmland on the ground surface.

In view of the above-mentioned related art, the inventor believes that when the irrigation water is too much, the water will penetrate into the underground deep through the ground surface as time goes on, and is not utilized by crops, resulting in waste of water resources.

Disclosure of Invention

In order to the water economy resource, this application provides a water supply system for farmland.

The application provides a water supply system for farmland adopts following technical scheme:

the utility model provides a water supply system for farmland, is including seting up at subaerial well and the connecting pipe I of being connected with the well, the one end that the well was kept away from to connecting pipe I is provided with the subassembly that sprays, be provided with the power spare that is used for supplying water on the connecting pipe I, subaerial aqua storage tank that is used for the water storage that is provided with, be provided with the connecting pipe two that is used for being connected with connecting pipe I in the aqua storage tank, be provided with the backward flow subassembly on the aqua storage tank, the backward flow subassembly includes back flow and transfer pipe, the back flow is close to the subassembly that sprays and sets up, back flow and aqua storage tank are through the transfer union coupling, be provided with the filtering ponds that are used for filtering impurity on the transfer pipe, be provided with the cleaning device who is used for clearing up impurity in the filtering ponds.

Through adopting above-mentioned technical scheme, irrigate the back at water through spraying the subassembly, unnecessary water enters into the transfer pipe through the back flow, then enters into the aqua storage tank through the transfer pipe in, the water in the aqua storage tank can let in spraying the subassembly through connecting pipe two and spray once more, carries out cyclic utilization, water economy resource to water.

Optionally, the spraying assembly comprises an installation pipe and a spray head, the installation pipe is connected with a first connecting pipe, the spray head is arranged on the installation pipe, the installation pipe is buried underground in the ground, one end, far away from the installation pipe, of the spray head extends to the outside of the ground, the return pipe is arranged on the ground and is arranged on one side of the spray head, and a plurality of water inlet holes are formed in one side, close to the ground, of the return pipe.

Through adopting above-mentioned technical scheme, water enters into connecting pipe one in, then enters into shower nozzle department blowout through the installation pipe, sprays the farmland, and unnecessary water enters into the return pipe through the inlet opening in to store it through the basin.

Optionally, be provided with the control assembly who is used for supplying water on the aqua storage tank, the control assembly includes control valve one, control valve two, controller and is used for detecting the response piece one of aqua storage tank internal water level, control valve one sets up the switch that is used for controlling connecting pipe one on connecting pipe one, control valve two sets up and is provided with the switch that is used for controlling connecting pipe two on connecting pipe two, response piece one sets up in the aqua storage tank, the controller sets up on the aqua storage tank, control valve one with control valve two is connected with the controller electricity, response piece one is connected with the signal receiving end electricity of controller.

Through adopting above-mentioned technical scheme, when the water level in the aqua storage tank is higher, response a case controller signals, close the control valve and open control valve two, let in the water in the aqua storage tank through connecting pipe two and spray in connecting pipe one, the water to in aqua storage tank and the well of rationality distributes and sprays.

Optionally, the export and the transit union coupling of filtering ponds, the exit of filtering ponds is provided with the filter screen that is used for filtering impurity, cleaning device is including clearance board, roof and the promotion subassembly that is used for adjusting the clearance board position, the roof sets up the opening part at the filtering ponds, the clearance board slides in the filtering ponds and sets up, the mounting groove has been seted up in the bottom of filtering ponds, promote the subassembly setting and be connected with the clearance board in the mounting groove.

Through adopting above-mentioned technical scheme, when water flows through the transfer line, enter into in the filter tank and filter the back through the filter screen and enter into the aqua storage tank, strain the department with the impurity of aquatic, reduce the impurity in the aqua storage tank and lead to connecting pipe two to appear the phenomenon of blockking up too much.

Optionally, a plurality of cleaning holes for filtering are formed in the cleaning plate, a rotating groove is formed in one side, close to the top plate, of the cleaning plate, a blocking portion is arranged on one side, close to the opening, of the top plate, the blocking portion and the rotating groove are correspondingly arranged, and the inner wall of the rotating groove is arc-shaped.

Through adopting above-mentioned technical scheme, when the promotion subassembly drives the clearance board and removes, the clearance board remove to with the roof butt, rotate groove and abutment portion butt, promote the subassembly and continue to promote the clearance board and rotate, the clearance board rotates, pours the filtering ponds with impurity, clears up impurity.

Optionally, the promotion subassembly includes transfer line, gear and drives the driving piece that is used for driving the transfer line and removes, the driving piece sets up in the mounting groove, the transfer line sets up in the mounting groove, and one end extends to in the filter tank and the clearance board is connected, the tooth's socket has been seted up to the side of transfer line, the gear sets up the output at the driving piece, gear and tooth's socket meshing.

Through adopting above-mentioned technical scheme, the driving piece passes through the gear and drives the transfer line removal, and the transfer line removes and promotes the clearance board and remove to clear up impurity.

Optionally, one side of the cleaning plate close to the transmission rod is provided with a sliding frame, one end of the transmission rod, which is far away from the driving piece, is rotatably provided with a sliding block, the sliding block is arranged in the sliding frame in a sliding mode, an elastic piece used for adjusting the position of the sliding block is arranged in the sliding frame, and the elastic piece is connected with the sliding block and the inner wall of the sliding frame.

Through adopting above-mentioned technical scheme, when the transfer line drives the clearance board and removes to with the roof butt, the catch bar continues to drive the clearance board and removes, and when the clearance board rotated, the relative transfer line of slider rotated simultaneously, and the slider removed in the sliding frame, and the clearance board pivoted phenomenon appears interfering in the reduction transfer line.

Optionally, be provided with reset assembly on the transfer line, reset assembly includes release link and the piece that resets that is used for adjusting clearance board position, the release link is circular-arcly, the one end and the slider of release link are connected, and the other end runs through the transfer line setting, the release link rotates the setting on the transfer line, the outside at the release link is established to the piece cover that resets, two of the piece that resets are connected with slider and transfer line respectively.

Through adopting above-mentioned technical scheme, set up reset assembly and adjust the position of cleaning plate for after cleaning plate and roof separation, initial position can be got back to the cleaning plate, so that clear up the impurity in the filtering ponds once more.

Optionally, the edge of clearance board is provided with the baffle that is the U font, the opening of baffle sets up towards the roof.

Through adopting above-mentioned technical scheme, set up the baffle on the clearance board, reduce impurity and appear falling the phenomenon at the clearance board, stability when promoting clearance impurity.

Optionally, a second sensing part for detecting the water level in the filtering tank is arranged in the filtering tank, the second sensing part is arranged on the inner wall of the filtering tank, and the second sensing part is electrically connected with the controller.

Through adopting above-mentioned technical scheme, when impurity in the filtering ponds is more, the filter screen can cause the water level in the filtering ponds to rise because of blockking up two, and the response piece two detects the water level in the filtering ponds and rises the back, and controller control driving piece drives the clearance board and removes and clear up impurity, promotes the filter effect to water.

Drawings

Fig. 1 is a schematic structural view of a water supply system for agricultural land according to an embodiment of the present application.

Fig. 2 is a view showing the construction of a sprinkler assembly in the water supply system for agricultural field according to the embodiment of the present application.

Fig. 3 is a view showing the construction of a return flow module in the water supply system for agricultural use according to the embodiment of the present invention.

Fig. 4 is a structural view of a control unit in the water supply system for agricultural land according to the embodiment of the present application.

Fig. 5 is a view showing the structure of a cleaning device in the water supply system for agricultural land according to the embodiment of the present application.

Fig. 6 is a structural view of a ceiling plate in the agricultural water supply system according to the embodiment of the present application.

Fig. 7 is a view showing the construction of a push unit in the water supply system for agricultural field according to the embodiment of the present invention.

Fig. 8 is a structural view of a reset unit in the water supply system for agricultural land according to the embodiment of the present application.

Reference numerals: 1. a ground surface; 11. a filtration tank; 111. a second sensing part; 12. a filter screen; 13. mounting grooves; 2. a water well; 21. a first connecting pipe; 22. a power member; 3. a spray assembly; 31. installing a pipe; 32. a spray head; 4. a water storage tank; 41. a second connecting pipe; 5. a reflow assembly; 51. a return pipe; 511. a communicating pipe; 512. a water inlet hole; 52. a transit tube; 6. a control component; 61. a first control valve; 62. a second control valve; 63. a controller; 64. a first sensing piece; 7. a cleaning device; 71. cleaning the plate; 711. a rotating groove; 712. a baffle plate; 72. a pushing assembly; 721. a drive member; 722. a transmission rod; 723. a gear; 724. a tooth socket; 73. a top plate; 731. a resisting part; 732. a limiting part; 8. a sliding frame; 81. a slider; 82. an elastic member; 83. clamping a plate; 9. a reset assembly; 91. a reset lever; 92. a reset member.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The application discloses a water supply system for farmland. Referring to fig. 1 and 2, the water supply system for farmlands comprises a water well 2 arranged on the ground 1 and a first connecting pipe 21 arranged on the ground 1 and connected with the water well 2, one end of the first connecting pipe 21 is inserted into the water well 2, the other end of the first connecting pipe is provided with a spraying assembly 3, a power part 22 is arranged on the first connecting pipe 21, the power part 22 can be set as a water pump, and water enters the spraying assembly 3 from the water well 2 through the first connecting pipe 21 to be sprayed under the action of the water pump.

Referring to fig. 2 and 3, the spraying assembly 3 includes an installation pipe 31 and a plurality of spray heads 32 arranged on the installation pipe 31, the plurality of spray heads 32 are arranged on the installation pipe 31 along the length direction of the installation pipe 31, the spraying assembly 3 is provided with a plurality of spray heads, and the installation pipes 31 in the plurality of spraying assemblies 3 are arranged at intervals in parallel, so that the plurality of spray heads 32 are uniformly distributed, the installation pipe 31 is buried in the ground 1, the installation pipe 31 is connected with a first connecting pipe 21, one end of the spray head 32 is connected with the installation pipe 31, and the other end extends out of the ground 1, so that the farmland is uniformly irrigated.

Referring to fig. 2 and 3, a water storage tank 4 is disposed on a ground 1, a backflow assembly 5 is disposed on the water storage tank 4, the backflow assembly 5 includes a backflow pipe 51 and a plurality of return pipes 52, the backflow pipe 51 is disposed on the ground 1 in a plurality of parallel intervals, a communication pipe 511 is disposed between the backflow pipes 51, the backflow pipes 51 are connected by the communication pipe 511, the backflow pipes 51 and the installation pipes 31 are arranged in a crossed manner, that is, the backflow pipe 51 is disposed between two adjacent installation pipes 31, one end of the return pipe 52 is connected to the backflow pipe 51, the other end is connected to the water storage tank 4, a second connection pipe 41 is disposed in the water storage tank 4, one end of the second connection pipe 41, which is far away from the water storage tank 4, is communicated with the first connection pipe 21, the second connection pipe 41 is disposed on a side of a water pump close to a well 2, a plurality of water inlet holes 512 are disposed on a side of the backflow pipe 51, which is close to the ground 1, a plurality of water inlet holes 512 are arranged in a row along the length direction of the return pipe 51. When irrigating, redundant water enters the return pipe 51 through the water inlet 512, then enters the water storage tank 4 through the transit pipe 52, and is sprayed again through the second connecting pipe 41 to be utilized, so that the utilization efficiency of water resources is improved.

Referring to fig. 3 and 4, a control assembly 6 for controlling water supply is disposed on the water storage tank 4, the control assembly 6 includes a first control valve 61, a second control valve 62, a controller 63 and a first sensing element 64, the first sensing element 64 can be a liquid level sensor and is disposed in the water storage tank 4 for detecting the height of the water level in the water storage tank 4, the first control valve 61 is disposed on the first connecting pipe 21 for controlling the opening and closing of the first connecting pipe 21, the second control valve 62 is disposed on the second connecting pipe 41 for controlling the opening and closing of the second connecting pipe 41, both the first control valve 61 and the second control valve 62 are disposed as solenoid valves in the present embodiment, the controller 63 is disposed on the water storage tank 4, the first sensing element 64 is electrically connected to a signal receiving end of the controller 63, and a control end of the controller 63 is connected to the first control valve 61, the second control valve 62 and the switch of the power element 22 for controlling the same. After the first sensing part 64 detects that the water level in the water storage tank 4 reaches the preset value, a signal is sent to the controller 63, the controller 63 adjusts the first control valve 61 to be closed, and the second control valve 62 to be opened, so that water in the water storage tank 4 is discharged for irrigation.

Referring to fig. 3 and 4, the filtering tank 11 is disposed on the transfer pipe 52, the transfer pipe 52 penetrates through the filtering tank 11, the filtering net 12 is disposed at an outlet of the filtering tank 11, water enters the filtering tank 11 through the transfer pipe 52, and flows into the water storage tank 4 through the transfer pipe 52 again after being filtered by the filtering net 12, so that the phenomenon that the second connecting pipe 41 is blocked is reduced. In order to clean the impurities in the filtering tank 11 conveniently, a cleaning device 7 for cleaning the impurities is arranged in the filtering tank 11.

Referring to fig. 4 and 5, the cleaning device 7 includes a cleaning plate 71, a pushing assembly 72 and a top plate 73, the cleaning plate 71 is disposed near the bottom of the filtering tank 11, a mounting groove 13 is formed in the bottom of the filtering tank 11, the pushing assembly 72 is disposed in the mounting groove 13, two cleaning plates 71 are disposed side by side in the filtering tank 11, the top plate 73 is disposed at an opening edge of the filtering tank 11 and is disposed corresponding to the cleaning plates 71, a plurality of cleaning holes for removing impurities are formed in the cleaning plates 71, the plurality of cleaning holes are uniformly spaced on the cleaning plates 71, a rotating groove 711 is formed on one side of the cleaning plate 71 near the top plate 73, the rotating groove 711 is disposed on one side of the cleaning plate 71 away from the other cleaning plate 71, an inner wall of the rotating groove 711 is arc-shaped, a stopper 731 is disposed on one side of the top plate 73 near the opening, the stopper 731 corresponds to the rotating groove 711, the pushing assembly 72 is connected to the cleaning plate 71. When impurity needs to be cleaned, the pushing assembly 72 drives the cleaning plate 71 to move, the cleaning plate 71 drives the impurity to move, when the cleaning plate 71 moves to the opening, the resisting part 731 and the rotating groove 711 are buckled, the cleaning plate 71 continues to be pushed to move, the cleaning plate 71 rotates around the resisting part 731, and the impurity is poured out of the water storage tank 4.

Referring to fig. 5 and 6, the stopper portion 732 is provided on the abutting portion 731, and the stopper portion 732 is provided so as to be inclined at 45 degrees in the horizontal direction on the side closer to the cleaning plate 71, and abuts against the stopper portion 732 when the cleaning plate 71 rotates at 45 degrees around the abutting portion 731, and the rotation of the cleaning plate 71 is stopped, and the foreign matter is poured out. The phenomenon that impurities are poured into the water storage tank 4 again due to the fact that the rotation angle of the cleaning plate 71 is too large is reduced.

Referring to fig. 5 and 7, the pushing assembly 72 includes a driving member 721, a transmission rod 722 and a gear 723, the driving member 721 may be provided as a motor, the motor is disposed in the mounting groove 13, the transmission rod 722 is disposed in the vertical direction and disposed in the mounting groove 13, and one end of the transmission rod passes through the mounting groove 13 and extends into the water storage tank 4 to be connected with the cleaning plate 71, the gear 723 is disposed at an output end of the motor, a tooth slot 724 is formed in one side of the transmission rod 722 along a length direction thereof, the gear 723 is engaged with the tooth slot 724, the motor drives the transmission rod 722 to move through the gear 723, and thus the position of the cleaning plate 71 is adjusted.

Referring to fig. 7 and 8, a sliding frame 8 is disposed on one side of the cleaning plate 71 close to the transmission rod 722, a sliding block 81 is disposed at an end of the transmission rod 722, the sliding block 81 is disposed in the sliding block 81 in a sliding manner in a vertical direction in a direction toward the baffle 712, the transmission rod 722 is rotatably connected to the sliding block 81, when the transmission rod 722 drives the cleaning plate 71 to move to abut against the abutting portion 731, the cleaning plate 71 is continuously pushed, the sliding block 81 rotates, and the transmission rod 722 rotates relative to the sliding block 81 while sliding in the sliding frame 8.

Referring to fig. 7 and 8, in order to facilitate that the cleaning plate 71 can return to the initial state after cleaning impurities, a reset assembly 9 is disposed on the transmission rod 722, the reset assembly 9 includes a reset rod 91 and a reset member 92, the reset member 92 can be configured as a spring, the spring is in a circular arc shape, one end of the spring is connected with the transmission rod 722, the other end of the spring is connected with the slider 81, the shape of the reset rod 91 corresponds to the shape of the spring, one end of the reset rod 91 is connected with the slider 81, the other end of the reset rod 91 penetrates through the transmission rod 722 and is rotatably disposed on the transmission rod 722, when the transmission rod 722 drives the cleaning plate 71 to rotate, the reset rod 91 rotates on the transmission rod 722, and simultaneously compresses the spring, after the transmission rod 722 drives the cleaning plate 71 to return to the water storage tank 4, the cleaning plate 71 is driven to return to the initial position under the action of the reset member 92, so that impurities can be cleaned again. The sliding frame 8 is provided with a blocking plate 83, the blocking plate 83 is arranged on one side of the transmission rod 722 departing from the abutting part 731, and when the cleaning plate 71 rotates to drive the blocking plate 83 to abut against the side surface of the transmission rod 722, the cleaning plate 71 rotates to an initial state.

Referring to fig. 7 and 8, when the cleaning plate 71 rotates, the sliding block 81 slides in the sliding frame 8, in order that the sliding block 81 can return to the initial position when the cleaning plate 71 rotates horizontally, the elastic member 82 is arranged in the sliding frame 8, the elastic member 82 can be a spring, the spring is arranged along the sliding direction of the sliding block 81 in the sliding frame 8, one end of the spring is abutted against the sliding block 81, the other end of the spring is abutted against the inner wall of the sliding frame 8, when the sliding block 81 slides, the spring compresses, and after the cleaning plate 71 is separated from the abutting part 731, the spring drives the sliding block 81 to return to the initial position, so that the position of the cleaning plate 71 is adjusted. Be provided with baffle 712 at the edge of clearance board 71, baffle 712 is the U font, and the opening sets up towards department 731 that keeps out, and baffle 712 shelters from impurity, reduces impurity when removing, appears dropping the outside phenomenon of clearance board 71, promotes the edulcoration effect.

Referring to fig. 4, a second sensing member 111 for detecting the water level in the filtering tank 11 is disposed in the filtering tank 11, the second sensing member 111 may be a liquid level sensor disposed on the inner wall of the filtering tank 11, the second sensing member 111 is connected to the signal receiving end of the controller 63, and the switch of the driving member 721 is electrically connected to the control end of the controller 63. When impurity in filtering ponds 11 is more, can appear blockking up filter screen 12, filter screen 12 appears blockking up the back, along with the continuous entering of water is looked into in filtering ponds 11, the water level in filtering ponds 11 can increase, when level sensor detects the water level increase in filtering ponds 11, to controller 63 signals, controller 63 control driving piece 721 is opened, clears up the impurity in the filtering ponds 11.

The implementation principle of the application is as follows: when supplying water and irrigating the farmland, unnecessary water on the earth's surface enters into aqua storage tank 4 through backward flow subassembly 5 in, irrigates in carrying to the farmland once more through connecting pipe two 41, carries out cyclic utilization, water economy resource to water.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a water supply system for farmland, includes well (2) and the connecting pipe (21) of being connected with well (2) of seting up on ground (1), its characterized in that: the one end that well (2) were kept away from in connecting pipe (21) is provided with sprays subassembly (3), be provided with power spare (22) that are used for supplying water on connecting pipe (21), be provided with aqua storage tank (4) that are used for the water storage on ground (1), be provided with in aqua storage tank (4) and be used for the connecting pipe two (41) of being connected with connecting pipe (21), be provided with backward flow subassembly (5) on aqua storage tank (4), backward flow subassembly (5) include back flow (51) and transit pipe (52), back flow (51) are close to and spray subassembly (3) setting, back flow (51) and aqua storage tank (4) are connected through transit pipe (52), be provided with on transit pipe (52) and be used for filtering impurity's filtering ponds (11), be provided with in filtering ponds (11) and be used for clearing up cleaning device (7) of impurity.

2. The water supply system for agricultural land according to claim 1, wherein: spray subassembly (3) including installation pipe (31) and shower nozzle (32), installation pipe (31) and connecting pipe (21) are connected, shower nozzle (32) set up on installation pipe (31), installation pipe (31) are buried underground in ground (1), the one end that installation pipe (31) were kept away from in shower nozzle (32) extends to the outside on ground (1), back flow (51) set up on ground (1), and set up the one side at shower nozzle (32), a plurality of inlet openings (512) have been seted up to one side that is close to ground (1) on back flow (51).

3. The water supply system for agricultural land according to claim 2, wherein: be provided with control assembly (6) that is used for supplying water on aqua storage tank (4), control assembly (6) include control valve (61), control valve two (62), controller (63) and be used for detecting response piece (64) of aqua storage tank (4) interior water level, control valve (61) set up the switch that is used for controlling connecting pipe (21) on connecting pipe (21), control valve two (62) set up and are provided with the switch that is used for controlling connecting pipe two (41) on connecting pipe two (41), response piece (64) set up in aqua storage tank (4), controller (63) set up on aqua storage tank (4), control valve one (61) with control valve two (62) and controller (63) electricity are connected, the signal receiving terminal electricity of response piece (64) and controller (63) is connected.

4. The water supply system for agricultural land according to claim 3, wherein: the export and the transfer pipe (52) of filtering ponds (11) are connected, the exit of filtering ponds (11) is provided with filter screen (12) that are used for filtering impurity, cleaning device (7) are including clearance board (71), roof (73) and be used for adjusting promotion subassembly (72) of clearance board (71) position, roof (73) set up the opening part in filtering ponds (11), clearance board (71) slide the setting in filtering ponds (11), mounting groove (13) have been seted up in the bottom of filtering ponds (11), it connects with clearance board (71) to promote subassembly (72) setting in mounting groove (13).

5. The water supply system for agricultural land according to claim 4, wherein: the cleaning plate (71) is provided with a plurality of cleaning holes for filtering, one side, close to the top plate (73), of the cleaning plate (71) is provided with a rotating groove (711), one side, close to the opening, of the top plate (73) is provided with a resisting part (731), the resisting part (731) and the rotating groove (711) are correspondingly arranged, and the inner wall of the rotating groove (711) is arc-shaped.

6. The water supply system for agricultural land according to claim 5, wherein: the pushing assembly (72) comprises a transmission rod (722), a gear (723) and a driving piece (721) for driving the transmission rod (722) to move, the driving piece (721) is arranged in the installation groove (13), the transmission rod (722) is arranged in the installation groove (13), one end of the transmission rod extends into the filter tank (11) and is connected with the cleaning plate (71), a tooth groove (724) is formed in the side surface of the transmission rod (722), the gear (723) is arranged at the output end of the driving piece (721), and the gear (723) is meshed with the tooth groove (724).

7. The water supply system for agricultural land according to claim 6, wherein: one side that clearance board (71) are close to transfer line (722) is provided with smooth frame (8), the one end rotation that transfer line (722) deviates from driving piece (721) is provided with slider (81), slider (81) slide in smooth frame (8) and set up, be provided with in smooth frame (8) and be used for adjusting elastic component (82) of slider (81) position, elastic component (82) link block (81) and smooth frame (8) inner wall.

8. The water supply system for agricultural land according to claim 7, wherein: be provided with reset assembly (9) on transfer line (722), reset assembly (9) include release link (91) and reset piece (92) that are used for adjusting clearance board (71) position, release link (91) are circular-arcly, the one end and slider (81) of release link (91) are connected, and the other end runs through transfer line (722) and sets up, release link (91) rotate the setting on transfer line (722), the outside at release link (91) is established in release link (92) cover, two of reset piece (92) are connected with slider (81) and transfer line (722) respectively.

9. The water supply system for agricultural land according to claim 8, wherein: the edge of clearance board (71) is provided with baffle (712) that are the U-shaped, the opening of baffle (712) sets up towards roof (73).

10. The water supply system for agricultural land according to claim 9, wherein: a second sensing part (111) for detecting the water level in the filtering tank (11) is arranged in the filtering tank (11), the second sensing part (111) is arranged on the inner wall of the filtering tank (11), and the second sensing part (111) is electrically connected with the controller (63).

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