A kind of automatic control device for water-saving irrigation of farmland

Abstract

The utility model discloses a farmland water-saving irrigation automatic control device, comprising a bracket, a water storage tank is arranged at the upper end of the bracket, a watering pipe is arranged at the upper end of the bracket, a nozzle is arranged at one end of the watering pipe, a piston is slidably connected inside the watering pipe, a rack is arranged at one end of the piston, a spring is arranged outside the rack, a first support shaft is rotatably connected inside the bracket, an intermittent gear is arranged outside the first support shaft, a first variable speed pulley group is arranged outside the first support shaft, a second support shaft is rotatably connected inside the bracket, a second variable speed pulley group is arranged outside the second support shaft, a driving device is arranged inside the bracket, a first one-way valve is arranged inside the watering pipe, a water pipe is connected between the outside of the watering pipe and the water storage tank, and a second one-way valve is arranged at one end of the water pipe. The utility model can conveniently adjust the watering amount according to demand, ensure the uniformity of watering, reduce the waste of water resources, and allow crops to grow better.

Description

Technical Field

[0001] The utility model relates to the technical field of farmland irrigation, in particular to an automatic control device for farmland water-saving irrigation. Background Art

[0002] Crops and green vegetation require water to participate in photosynthesis throughout the entire process from seed germination to growth. Without an adequate water supply, the growth and development of crops will be inhibited and damaged. If there is a continuous lack of water, the crops will die of drought. Therefore, it is necessary to actively water the crops to replenish sufficient water for the crops and improve the growth and development conditions of the crops. In the prior art, crop irrigation usually uses pipeline water delivery to transport water to the field for irrigation. However, due to the different types and growth periods of field crops, the amount of water required for irrigation is also different. The use of pipeline water delivery cannot adjust the amount of water according to the type and growth period of the crop, which will cause some crops to be watered too much or too little, thereby causing a waste of water resources and affecting the growth of crops. Utility Model Content

[0003] The utility model aims to provide an automatic control device for water-saving irrigation of farmland, which can conveniently adjust the watering amount according to demand, ensure the uniformity of watering, reduce the waste of water resources, and allow crops to grow better.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A farmland water-saving irrigation automatic control device comprises a bracket, a water storage tank is arranged at the upper end of the bracket, watering pipes are arranged on the left and right sides of the upper end of the bracket, a nozzle is arranged at the end of any watering pipe away from the other watering pipe, a piston is slidably connected to the inside of each watering pipe, a rack is slidably connected to the corresponding watering pipe at the end of each piston close to the corresponding nozzle, and a spring is arranged on the outer side of each rack between the corresponding watering pipe and the corresponding piston;

[0006] The transmission gear of the present invention is a gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a

[0007] A first one-way valve is arranged at one end of each watering pipe away from the corresponding rack, a water pipe is connected between the outer end of each watering pipe close to the corresponding first one-way valve and the water tank, and a second one-way valve is arranged at one end of each water pipe close to the corresponding watering pipe.

[0008] By adopting the above technical solution, when watering, the driving device in the bracket drives the second support shaft to rotate, the rotation of the second support shaft drives the second speed change pulley group to rotate, the second speed change pulley group drives the first speed change pulley group to rotate through the transmission belt, the rotation of the first speed change pulley group drives the first support shaft to rotate, and the rotation of the first support shaft drives the intermittent gear to rotate; when the intermittent gear rotates to mesh with the rack, it can drive the rack to slide relative to the watering pipe, thereby driving the piston to slide in the watering pipe and compressing the spring at the same time, and the water in the water tank passes through the water delivery pipe, and then The movement of the piston allows the water in the water pipe to enter the glue pipe from the second one-way valve, and then when the rear intermittent gear rotates to no longer mesh with the rack, the piston is reset under the elastic force of the spring, pushing the water in the watering pipe to be discharged from the first one-way valve, and then watering the crops through the sprinkler. When the amount of watering needs to be adjusted, the transmission belt is connected to different first pulleys in the first variable speed pulley group and different second pulleys in the second variable speed pulley group, thereby changing the transmission ratio, changing the rotation speed of the intermittent gear, and changing the frequency of meshing of the intermittent gear with the rack, thereby changing the amount of watering.

[0009] The utility model is further configured as follows: the driving device includes a horizontally arranged main shaft rotatably connected between the left and right ends inside the bracket, an extension shaft arranged at one end of any second supporting shaft close to the main shaft, a first bevel gear arranged on the outer side of the main shaft close to the extension shaft, a second bevel gear arranged at one end of the extension shaft close to the first bevel gear and meshing with the first bevel gear, spur gears meshing with each other are arranged on the outer side of each second rotating shaft, and wheels are arranged at both left and right ends of the outer side of the main shaft.

[0010] The utility model is further configured as follows: the first pulleys in the first speed-changing pulley set are arranged with decreasing radius from front to back, and the second pulleys in the second speed-changing pulley set are arranged with increasing radius from front to back.

[0011] The utility model is further configured as follows: the upper end of the water storage tank is connected with a water filling pipe, and the interior of the water filling pipe is slidably connected with a detachable filter screen cover.

[0012] The utility model is further configured as follows: a handle is provided at one end of the bracket away from the watering pipe, and a plurality of supporting feet are provided at equal intervals on one side of the lower end of the bracket.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] First, it can conveniently ensure the uniformity of watering. When the intermittent gear rotates and meshes with the rack, the rack is driven to slide relative to the watering pipe, and the piston is driven to move in the watering pipe to compress the spring, so that the water in the water tank passes through the water pipe and is then drawn from the second one-way valve into the watering pipe. Then, when the intermittent gear rotates to not mesh with the rack, the piston is driven to reset under the elastic force generated by the spring compression. The spring pushes the piston to discharge the water drawn from the watering pipe from the first one-way valve, and then the crops are watered through the sprinkler. The rotation of the intermittent gear controls the watering process, thereby ensuring uniform watering of the crops.

[0015] Secondly, the amount of watering can be adjusted according to different types of crops and different growth periods. By connecting the transmission belt to different first pulleys in the first variable speed pulley group and the second pulley in the second variable speed pulley group, the transmission ratio is changed, thereby changing the speed of rotation of the intermittent gear, and the meshing rate between the intermittent gear and the rack is also changed, thereby changing the amount of watering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional view of the utility model;

[0018] Figure 3 It is to show the interior of the bracket of the utility model;

[0019] Figure 4 The utility model is demonstrated with handles and supporting feet.

[0020] In the figure: 1. bracket; 2. watering pipe; 3. sprinkler head; 4. piston; 5. rack; 6. first non-return valve; 7. second non-return valve; 8. water pipe; 9. water storage tank; 10. water pipe; 11. filter screen; 12. first support shaft; 13. intermittent gear; 14. first speed change pulley set; 15. first pulley; 16. second support shaft; 17. second speed change pulley set; 18. second pulley; 19. transmission belt; 20. main shaft; 21. first bevel gear; 22. second bevel gear; 23. extension shaft; 24. spur gear; 25. wheel; 26. handle; 27. support foot; 28. spring. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example, see Figure 1-4 A water-saving irrigation automatic control device for farmland includes a bracket 1, a water storage tank 9 is arranged on the rear side of the upper end of the bracket 1, a water supply pipe 10 is connected to the upper end of the water storage tank 9, and a detachable filter screen cover 11 is slidably connected inside the water supply pipe 10 to filter impurities in the water, a handle 26 is arranged on the upper side of the rear end of the bracket 1, and two supporting legs 27 are arranged at equal intervals on the rear side of the lower end of the bracket 1 to facilitate the stability of the bracket 1, a watering pipe 2 is horizontally arranged on the front side of the left and right sides of the upper end of the bracket 1, and a nozzle 3 is arranged on the left end of the left watering pipe 2 and the right end of the right watering pipe 2.

[0026] A piston 4 is slidably connected to the inside of each watering pipe 2, and a rack 5 slidably connected to the piston 4 is horizontally arranged at one end of each piston 4 away from the corresponding nozzle 3. A spring 28 is arranged on the outside of each rack 5 between the corresponding piston 4 and the corresponding watering pipe 2, which can easily drive the piston 4 to reset. A first one-way valve 6 is arranged at one end of each watering pipe 2 close to the corresponding nozzle 3, and a water pipe 8 is connected between the outside of each watering pipe 2 close to the corresponding one-way valve and the lower side of the front end of the water storage chamber, and a second one-way valve 7 is arranged at the front end of each water pipe 8.

[0027] Two first support shafts 12 arranged at equal intervals are rotatably arranged on the upper side of the front end inside each support shaft, and an intermittent gear 13 meshing with the corresponding rack 5 is arranged at the front end of the outer side of each first support shaft 12, which can conveniently maintain the uniformity of watering, and a first variable speed pulley group 14 is arranged at the rear end of the outer side of each first support shaft 12, including a plurality of first pulleys 15 arranged at equal intervals and with a radius gradually decreasing from front to rear. Two second support shafts 16 arranged at equal intervals are rotatably connected to the lower side of the front end inside the bracket 1, and a second variable speed pulley group 17 is arranged at the rear end of the outer side of each second support shaft 16, including a plurality of second pulleys 18 arranged at equal intervals and with a radius gradually increasing from front to rear. A transmission belt 19 for transmission is arranged between each first variable speed pulley group 14 and the corresponding second variable speed pulley group 17, which can conveniently adjust the watering amount.

[0028] A driving device for driving the second support shaft 16 to rotate is provided inside the bracket 1, including a horizontally arranged main shaft 20 rotatably connected between the left and right sides of the lower end of the bracket 1, a first bevel gear 21 is provided in the middle of the outer side of the main shaft 20, an extension shaft 23 is horizontally provided at the rear end of the second support shaft 16 arranged on the left side, and a second bevel gear 22 rotatably connected to the first bevel gear 21 is provided at the rear end of the extension shaft 23, and a spur gear 24 is provided at the front end of the outer side of each second support shaft 16, and the two spur gears 24 are meshed with each other, and a wheel 25 is provided at both ends of the left and right sides of the main shaft 20, which can facilitate the movement of the utility model and facilitate watering of different places.

[0029] Usage: When watering, the bracket 1 is pushed forward by the handle 26 to drive the wheel 25 to rotate, the rotation of the wheel 25 drives the main shaft 20 to rotate, the main shaft 20 drives the first bevel gear 21 to rotate, the first bevel gear 21 drives the second bevel gear 22 to rotate, the second bevel gear 22 drives the extension shaft 23 to rotate, the extension shaft 23 drives the corresponding second support shaft 16 to rotate, the second support shaft 16 drives the corresponding spur gear 24 to rotate, through the rotation of the two spur gears 24, drive the other second support shaft 16 to rotate, the second support shaft 16 rotates and drives the second speed change pulley set 17 to rotate, the second speed change pulley set 17 drives the first speed change pulley set 14 to rotate through the transmission belt 19, the first speed change pulley set 14 rotates and drives the first support shaft 12 to rotate, the first support shaft 12 rotates and drives the intermittent gear 13 to rotate.

[0030] When the intermittent gear 13 rotates to mesh with the rack 5, it can drive the rack 5 to slide relative to the watering pipe 2, thereby driving the piston 4 to slide in the watering pipe 2 and compressing the spring 28. The water in the water tank 9 passes through the water pipe 8, and then the piston 4 moves to allow the water in the water pipe 8 to enter the glue pipe from the second one-way valve 7. Then, when the intermittent gear 13 rotates to not mesh with the rack 5, under the elastic force of the spring 28, the piston 4 is driven to reset, pushing the water in the watering pipe 2 to be discharged from the first one-way valve 6, and then watering the crops through the nozzle 3. After watering is completed, the bracket 1 can be placed stably through the support feet 27.

[0031] When the amount of watering needs to be adjusted, the transmission belt 19 is connected to different first pulleys 15 in the first speed-changing pulley group 14 and different second pulleys 18 in the second speed-changing pulley group 17, thereby changing the transmission ratio, changing the rotation speed of the intermittent gear 13, and changing the frequency of meshing between the intermittent gear 13 and the rack 5, thereby changing the amount of watering.

[0032] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A farmland water-saving irrigation automatic control device, comprising a bracket (1), characterized in that: A water storage tank (9) is arranged at the upper end of the support (1), watering pipes (2) are arranged on both the left and right sides of the upper end of the support (1), a nozzle (3) is arranged at one end of any watering pipe (2) away from another watering pipe (2), a piston (4) is slidably connected to the inside of each watering pipe (2), a rack (5) slidably connected to the corresponding watering pipe (2) is arranged at one end of each piston (4) close to the corresponding nozzle (3), and a spring (28) is arranged on the outer side of each rack (5) between the corresponding watering pipe (2) and the corresponding piston (4); The upper end of the bracket (1) is rotatably connected to a horizontally arranged first support shaft (12) near each rack (5); an outer end of each first support shaft (12) near the corresponding rack (5) is provided with an intermittent gear (13) meshing with the first support shaft; an outer end of each first support shaft (12) away from the intermittent gear (13) is provided with a first speed change pulley group (14), including a plurality of first pulleys (15) arranged at equal intervals; the lower end of the bracket (1) is rotatably connected to a horizontally arranged second support shaft (16) near the first support shaft (12); a second speed change pulley group (17) is provided on the outer side of each second support shaft (16), including a plurality of second pulleys (18) arranged at equal intervals; a transmission belt (19) for transmission is provided between each first speed change pulley group (14) and the corresponding second speed change pulley group (17); and a driving device for driving each second support shaft (16) to rotate is provided inside the bracket (1); A first one-way valve (6) is provided at one end of the interior of each watering pipe (2) away from the corresponding rack (5); a water delivery pipe (8) is connected between the end of the outer side of each watering pipe (2) close to the corresponding first one-way valve (6) and the water storage tank (9); and a second one-way valve (7) is provided at one end of each water delivery pipe (8) close to the corresponding watering pipe (2).

2. The automatic control device for water-saving irrigation of farmland according to claim 1, characterized in that: The driving device comprises a horizontally arranged main shaft (20) rotatably connected between left and right ends inside the bracket (1), an extension shaft (23) arranged at one end of any second supporting shaft (16) close to the main shaft (20), a first bevel gear (21) arranged at the outer side of the main shaft (20) close to the extension shaft (23), a second bevel gear (22) arranged at one end of the extension shaft (23) close to the first bevel gear (21) and meshing with the first bevel gear (21), spur gears (24) meshing with each other arranged at the outer side of each second rotating shaft, and wheels (25) are arranged at the left and right ends of the outer side of the main shaft (20).

3. The automatic control device for farmland water-saving irrigation according to claim 1, characterized in that: The first pulleys (15) in the first speed-changing pulley set (14) are arranged with a radius gradually decreasing from front to back, and the second pulleys (18) in the second speed-changing pulley set (17) are arranged with a radius gradually increasing from front to back.

4. The automatic control device for water-saving irrigation of farmland according to claim 1, characterized in that: The upper end of the water storage tank (9) is connected to a water supply pipe (10), and a detachable filter screen cover (11) is slidably connected inside the water supply pipe (10).

5. The automatic control device for farmland water-saving irrigation according to claim 1, characterized in that: A handle (26) is provided at one end of the bracket (1) away from the watering pipe (2), and a plurality of supporting legs (27) are provided at equal intervals on one side of the lower end of the bracket (1).

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