Watering and fertilizing device for seedling culture and fertilizing method thereof

Abstract

The invention relates to the technical field of agricultural planting, and discloses a watering and fertilizing device for seedling raising and a fertilizing method.The watering and fertilizing device comprises a moving trolley, a storage battery module is arranged behind the top of the moving trolley, a controller is fixedly installed in front of the top of the moving trolley, and the controller is electrically connected with the storage battery module; walking wheels are movably installed at the four corners of the bottom of the moving vehicle, a height adjusting mechanism is arranged at the top of the moving vehicle, unfolding spraying mechanisms are arranged on the two sides of the height adjusting mechanism, and the height adjusting mechanism can drive the unfolding spraying mechanisms to move upwards or downwards. According to the watering and fertilizing device for seedling culture and the fertilizing method thereof, when an electric telescopic rod drives a shear type telescopic frame to unfold, a push plate can be synchronously driven to move, one end of a pressure balloon is pulled to move for air exhaust, and after spraying is completed, when the electric telescopic rod drives the shear type telescopic frame to retract, the push plate is driven to synchronously move, and the pressure balloon is compressed.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting, in particular to a watering and fertilizing device for seedling cultivation and a fertilizing method thereof. Background Art

[0002] When raising seedlings of crops, it is necessary to sprinkle water and fertilize them. At present, the main method is to dissolve fertilizers in water and apply water and fertilizer to crops. There are several main ways to sprinkle water and fertilize crops in seedling raising: 1. Manual spraying, 2. Distributed spray pipe spraying, 3. Spraying by spray truck. The first method is more traditional, which requires a lot of manpower, and the spraying process is not uniform enough, and there are many limitations. Although the second method can improve the uniformity of spraying, due to the large area of ​​the greenhouse, it is necessary to set up a support frame to build up multiple distributed spray pipes, and the area of ​​the seedling bed itself is large, the layout density of the spray pipe is naturally large, and there is often a lot of liquid left in the spray pipe, which is not easy to discharge, especially at the position of the atomizing nozzle. The liquid is retained for a long time, which is easy to cause water and fertilizer crystallization and blockage at the atomizing nozzle, and there are great difficulties in later maintenance. Although the third method has a certain degree of mobility, since the spray truck generally has its own water source, it is relatively large in size, requires frequent water replenishment, and has low efficiency. Summary of the invention

[0003] The object of the present invention is to provide a watering and fertilizing device for seedling cultivation and a fertilizing method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a watering and fertilizing device for seedling cultivation, comprising a mobile vehicle, a battery module is arranged at the rear of the top of the mobile vehicle, a controller is fixedly installed at the front of the top, and the controller is electrically connected to the battery module, and walking wheels are movably installed at the four corners of the bottom of the mobile vehicle, a height adjustment mechanism is arranged on the top of the mobile vehicle, and a deployment spraying mechanism is arranged on both sides of the height adjustment mechanism, the height adjustment mechanism can drive the deployment spraying mechanism to move upward or downward, and two groups of the deployment spraying mechanism can be deployed on both sides of the height adjustment mechanism, the deployment spraying mechanism comprises a transmission arm, an electric telescopic rod fixedly installed on the transmission arm, an adjusting slider fixedly connected to the output shaft of the electric telescopic rod, a scissor-type telescopic frame movably installed on the transmission arm, and a plurality of A dry three-way connector, an atomizing pipe and an atomizing nozzle fixedly connected to the three-way connector, and a water inlet pipe fixedly connected to the three-way connector. The scissor-type telescopic frame is transmission-connected to the electric telescopic rod through an adjusting slider. A compressed air cleaning mechanism is arranged on the top of the transmission arm, and the compressed air cleaning mechanism includes a mounting cage, a pressurized ball bag and a push plate arranged inside the mounting cage, a one-way air inlet valve and a one-way air outlet valve fixedly connected to one end of the pressurized ball bag, the push plate is fixedly connected to the adjusting slider, the one-way air outlet valve is fixedly connected to the water inlet pipe, a water supply mechanism is arranged on the top of the mobile vehicle, and the water supply mechanism includes a winding roller, a water supply hose wound around the outside of the winding roller, a water pump and a dispersion box fixedly installed on the top of the mobile vehicle, the water inlet of the water pump is connected to the water supply hose, the water outlet is fixedly connected to the dispersion box, and the dispersion box is fixedly connected to the water inlet pipe.

[0005] Preferably, support arms are fixedly mounted on the four corners of the bottom of the mobile vehicle, the walking wheels are movably mounted on the mobile vehicle through the support arms, and drive motors are fixedly mounted on the two groups of support arms at the front end of the bottom of the mobile vehicle, and the output shaft of the drive motor is fixedly connected to the walking wheels on the support arms, and the drive motor is electrically connected to the controller. The two groups of drive motors at the front end are controlled by the controller to drive the walking wheels to rotate, which can drive the device to move and comprehensively sprinkle water and fertilize crops at the seedling position. Preferably, the height adjustment mechanism includes an adjustment frame fixedly mounted on the top of the mobile vehicle, a servo motor is fixedly mounted on the top of the adjustment frame, and an adjustment screw located inside the adjustment frame is fixedly connected to the output shaft of the servo motor, and the servo motor is electrically connected to the controller. Since the spraying shape of the atomizing nozzle is conical, the height of the atomizing nozzle is adjusted according to the height of the crops, so that the water and fertilizer sprayed by several atomizing nozzles can fully cover the crops.

[0006] Preferably, the transmission arms in the two groups of the deployed spraying mechanisms are fixedly connected, and the two groups of transmission arms are movably installed inside the adjustment frame and threadedly connected to the adjustment screw, ensuring that the adjustment screw can drive the transmission arms to move when rotating, thereby realizing the adjustment of the height of the two groups of deployed spraying mechanisms.

[0007] Preferably, the scissors-type telescopic frame is hinged by several connecting rods distributed in an "X" shape, and the hinge positions of several of the connecting rods are provided with hinge shafts. One end of the scissors-type telescopic frame is movably connected to the bottom of the transmission arm, and the hinge shaft of the scissors-type telescopic frame near the transmission arm is fixedly connected to the adjusting slider, and the adjusting slider is fixedly connected to the second hinge shaft of the scissors-type telescopic frame near the transmission arm. When the adjusting slider moves driven by the electric telescopic rod, the scissors-type telescopic frame as a whole can be driven to retract or expand through the hinge shaft.

[0008] Preferably, the three-way connector is fixedly connected to a hinge shaft in the middle of the three-way connector, and adjacent three-way connectors are fixedly connected via a hose to ensure that water and fertilizer can be supplied to all atomizing pipes and atomizing nozzles through the three-way connector. A threaded plug is provided on the three-way connector away from one end of the transmission arm to seal the three-way connector at the end to prevent leakage of water and fertilizer.

[0009] Preferably, the electric telescopic rod is fixedly installed on the top of the transmission arm, the adjustment slider is slidably connected to the transmission arm, the electric telescopic rod is electrically connected to the controller, and the electric telescopic rod can drive the adjustment slider to move under the control of the controller to achieve adjustment of the scissor-type telescopic frame and the push plate.

[0010] Preferably, the push plate is fixedly connected to one end of the pressurized ball balloon away from the one-way air inlet valve and the one-way air outlet valve. The pressurized ball balloon is an accordion-like structure as a whole. After spraying is completed, the electric telescopic rod drives the scissors-type telescopic frame to contract and drives the push plate to move synchronously to compress the pressurized ball balloon. The one-way valve is used to limit the airflow, and the airflow is introduced into the three-way connector, the atomizing pipe and the atomizing nozzle to clean the atomizing nozzle through the airflow.

[0011] Preferably, the winding roller is movably mounted on the top of the mobile vehicle, and a connecting groove is opened inside one end of the winding roller, one end of the connecting groove is fixedly connected to the water supply hose, and a rotating joint is fixedly mounted on the other end, and the rotating joint is located on the central axis of the winding roller. The water inlet of the water pump is connected to the water supply hose through the rotating joint and the connecting groove, and the water pump is electrically connected to the controller. When the device moves, the winding roller can unfold the water supply hose, and the water inlet of the water pump is connected to the water supply hose through the rotating joint and the connecting groove, to ensure that the water inlet of the water pump is still connected to the water supply hose when the winding roller rotates.

[0012] A fertilization method of a watering and fertilizing device for seedling cultivation, comprising the following operating steps:

[0013] S1. Connect one end of the water supply hose to the existing water storage mechanism, which is a water bucket or a water tank. The water storage mechanism stores water and fertilizer. Send instructions to the controller through a remote control device adapted to the controller. The controller controls the electric telescopic rods in the two sets of deployment spraying mechanisms to start. The output shaft of the electric telescopic rod extends to drive the adjustment slider to move. According to the area of ​​the seedling raising area, the scissor-type telescopic frame is adaptively deployed;

[0014] S2. When the scissor-type telescopic frame is unfolded, it drives several three-way connectors, atomizing pipes and atomizing nozzles to move, so that the spraying area of ​​several atomizing nozzles can cover the seedling area, and then the servo motor drives the adjusting screw to rotate, driving the two sets of transmission arms to move upward or downward, and adjusting the height of the two sets of unfolding spraying mechanisms according to the height of the crops. Since the spraying shape of the atomizing nozzle is conical, the height of the atomizing nozzle is adjusted, so that the water and fertilizer sprayed by the several atomizing nozzles can fully cover the crops;

[0015] S3, the water pump starts to pump water and fertilizer along the water supply hose, and introduces it into the water inlet pipes of the two groups of spraying mechanisms along the dispersion box, and conducts it through the three-way connector and the atomizing pipe, and is sprayed out after being atomized by the atomizing nozzle to fertilize the crops. At the same time, the controller controls the driving motor to drive the walking wheel to rotate, drive the device to move in the seedling area, and comprehensively sprinkle water and fertilize the crops in the seedling area;

[0016] S4. When the device moves, the winding roller unwinds the water supply hose, and the water inlet of the water pump is connected to the water supply hose through the rotating joint and the connecting groove, ensuring that the water inlet of the water pump is still connected to the water supply hose when the winding roller rotates;

[0017] S5. When the output shaft of the electric telescopic rod extends to drive the scissor-type telescopic frame to unfold, the electric telescopic rod simultaneously drives the adjusting slider and the push plate to move, and the push plate drives one end of the pressurized ball balloon to move, and air is inhaled along the one-way air inlet valve. After the watering and fertilizing is completed, the electric telescopic rod drives the scissor-type telescopic frame to contract and synchronously drives the adjusting slider and the push plate to reset. The push plate moves to squeeze the pressurized ball balloon, and the gas in the pressurized ball balloon is introduced into the water inlet pipe through the one-way air outlet valve and is restricted by the one-way water inlet valve, so that the gas is discharged through the three-way connector, the atomizing pipe and along the atomizing nozzle, and the atomizing nozzle is cleaned by the airflow.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The seedling watering and fertilizing device and the fertilizing method thereof can realize watering and fertilizing crops at the seedling raising position by driving the unfolding spraying mechanism to move through an electrically driven mobile vehicle, and has a high degree of automation, thereby improving work efficiency. Meanwhile, the scissor-type telescopic frame can be adaptively unfolded according to the area of ​​the seedling raising area, and the height of the unfolding spraying mechanism can be adjusted through a height adjustment mechanism, thereby ensuring that the unfolding spraying mechanism can realize comprehensive watering and fertilizing of the seedling raising crops and ensuring the spraying effect.

[0020] 2. The seedling watering and fertilizing device and fertilizing method thereof, when the electric telescopic rod drives the scissors-type telescopic frame to unfold, it can simultaneously drive the push plate to move, pull one end of the pressurized ball bag to move for extraction, and after the spraying is completed, the electric telescopic rod drives the scissors-type telescopic frame to contract and drives the push plate to move synchronously to compress the pressurized ball bag, and through the restriction of the one-way valve, the airflow is introduced into the three-way connector, the atomizing pipe and the atomizing nozzle, and the atomizing nozzle is cleaned by the airflow to avoid water and fertilizer being retained at the atomizing nozzle position, thereby preventing water and fertilizer from crystallizing and clogging at the atomizing nozzle position.

[0021] 3. The seedling watering and fertilizing device and fertilizing method thereof, when the device moves, the winding roller can unfold the water supply hose, and the water inlet of the water pump is connected to the water supply hose through a rotating joint and a connecting groove, ensuring that the water inlet of the water pump is still connected to the water supply hose when the winding roller rotates, and water and fertilizer can be supplied to the device through an external water storage mechanism, without the need to carry a water source, thereby reducing the size of the device and eliminating the need for frequent shutdowns for water replenishment, thereby improving the spraying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure after the overall combination of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the bottom of the mobile vehicle in the present invention;

[0024] Figure 3 It is a structural schematic diagram of the connection between the height adjustment mechanism and the deployment spraying mechanism in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the height adjustment mechanism in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the spraying mechanism in the present invention;

[0027] Figure 6 It is a structural schematic diagram of the compressed air cleaning mechanism in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the pressurized balloon in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the water supply mechanism in the present invention;

[0030] Fig. 9 It is a schematic structural diagram of the winding roller in the present invention.

[0031] In the figure: 1. mobile vehicle; 2. height adjustment mechanism; 21. adjustment frame; 22. servo motor; 23. adjustment screw rod; 3. deployment spraying mechanism; 31. transmission arm; 32. electric telescopic rod; 33. scissor-type telescopic frame; 331. connecting rod;

[0032] 34. Three-way connector; 35. Atomizing pipe; 36. Atomizing nozzle; 37. Adjusting slider; 38. Water inlet pipe; 39. One-way water inlet valve; 4. Compressed air cleaning mechanism; 41. Mounting cage; 42. Push plate; 43. Compressed air balloon; 44. One-way air inlet valve; 45. One-way air outlet valve; 5. Water supply mechanism; 51. Winding roller; 52. Water supply hose; 53. Rotary joint; 54. Connecting groove; 55. Water pump; 56. Dispersion box; 6. Battery module; 7. Traveling wheel; 8. Drive motor; 9. Controller. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 9In an embodiment of the present invention, a watering and fertilizing device for seedling cultivation includes a mobile vehicle 1, a battery module 6 is arranged at the rear of the top of the mobile vehicle 1, a controller 9 is fixedly installed at the front of the top, and the controller 9 is electrically connected to the battery module 6. The controller 9 and the battery module 6 are both prior art and are commercially available. The battery module 6 can power the device. The controller 9 is provided with a wireless transceiver module, and the device can be remotely controlled by a remote control device coordinated with the controller 9. The four corners of the bottom of the mobile vehicle 1 are movably provided with walking wheels 7. The mobile vehicle 1 driven by the electric drive drives the deployment of the spraying mechanism 3 to move, so as to realize watering and fertilizing of crops at the seedling cultivation position. The degree of automation is high, and the work efficiency is improved. The top of the mobile vehicle 1 is provided with a There is a height adjustment mechanism 2, and both sides of the height adjustment mechanism 2 are provided with an unfolding spraying mechanism 3, the height adjustment mechanism 2 can drive the unfolding spraying mechanism 3 to move upward or downward, two groups of unfolding spraying mechanisms 3 can be unfolded on both sides of the height adjustment mechanism 2, and the scissor-type telescopic frame 33 can be adaptively unfolded according to the area of ​​the seedling raising area. At the same time, the height of the unfolding spraying mechanism 3 can be adjusted by the height adjustment mechanism 2 to ensure that the unfolding spraying mechanism 3 can achieve comprehensive watering and fertilizing of seedling crops and ensure the spraying effect. The unfolding spraying mechanism 3 includes a transmission arm 31, an electric telescopic rod 32 fixedly mounted on the transmission arm 31, an adjusting slider 37 fixedly connected to the output shaft of the electric telescopic rod 32, a scissor-type telescopic frame 33 movably mounted on the transmission arm 31, and a scissor-type telescopic frame 33 arranged on the transmission arm 31. A plurality of three-way connectors 34 at the bottom of the telescopic frame 33, an atomizing pipe 35 and an atomizing nozzle 36 fixedly connected to the three-way connector 34, and a water inlet pipe 38 fixedly connected to the three-way connector 34, the scissor-type telescopic frame 33 is transmission-connected to the electric telescopic rod 32 through an adjusting slider 37, a compressed air cleaning mechanism 4 is arranged on the top of the transmission arm 31, and the compressed air cleaning mechanism 4 includes a mounting cage 41, a pressurized ball balloon 43 and a push plate 42 arranged inside the mounting cage 41, a one-way air inlet valve 44 and a one-way air outlet valve 45 fixedly connected to one end of the pressurized ball balloon 43, the push plate 42 is fixedly connected to the adjusting slider 37, and the one-way air outlet valve 45 is fixedly connected to the water inlet pipe 38. When the electric telescopic rod 32 drives the scissor-type telescopic frame 33 to unfold, it can synchronously drive the push plate 42 to move , pull one end of the pressurized ball bag 43 to move and pump air. After the spraying is completed, the electric telescopic rod 32 drives the scissor-type telescopic frame 33 to contract and drives the push plate 42 to move synchronously, compressing the pressurized ball bag 43, and limiting it through a one-way valve, directing the airflow into the three-way connector 34, the atomizing pipe 35 and the atomizing nozzle 36, and cleaning the atomizing nozzle 36 through the airflow. A water supply mechanism 5 is provided on the top of the mobile vehicle 1, and the water supply mechanism 5 includes a winding roller 51, a water supply hose 52 wound around the outside of the winding roller 51, a water pump 55 and a dispersion box 56 fixedly installed on the top of the mobile vehicle 1, the water inlet of the water pump 55 is connected to the water supply hose 52, and the water outlet is fixedly connected to the dispersion box 56, and the dispersion box 56 is fixedly connected to the water inlet pipe 38. When the device moves,The winding roller 51 can unfold the water supply hose 52, and the water inlet of the water pump 55 is connected to the water supply hose 52 through the rotating joint 53 and the connecting groove 54, ensuring that the water inlet of the water pump 55 is still connected to the water supply hose 52 when the winding roller 51 rotates. Water and fertilizer can be supplied to the device through an external water storage mechanism, without carrying a water source, reducing the size of the device, and at the same time, there is no need to stop the device frequently for water replenishment, thereby improving the spraying efficiency.

[0035] As a further implementation scheme of the above invention: support arms are fixedly installed at the four corners of the bottom of the mobile vehicle 1, and the walking wheels 7 are movably installed on the mobile vehicle 1 through the support arms. The walking wheels 7 are restricted by the support arms to ensure that the walking wheels 7 can rotate stably to drive the device to move. Drive motors 8 are fixedly installed on the two groups of support arms at the front end of the bottom of the mobile vehicle 1, and the output shafts of the drive motors 8 are fixedly connected to the walking wheels 7 on the support arms. The drive motors 8 are electrically connected to the controller 9. The two groups of drive motors 8 at the front end are controlled by the controller 9 to drive the walking wheels 7 to rotate, which can drive the device to move and carry out comprehensive watering and fertilizing of crops at the seedling position. The drive motors 8 are existing technology and are commercially available.

[0036] As a further implementation scheme of the above invention: the height adjustment mechanism 2 includes an adjustment frame 21 fixedly installed on the top of the mobile vehicle 1, a servo motor 22 is fixedly installed on the top of the adjustment frame 21, and an adjustment screw 23 located inside the adjustment frame 21 is fixedly connected to the output shaft of the servo motor 22. The adjustment screw 23 is driven to rotate by the servo motor 22, so that the height of the two groups of spraying mechanisms 3 can be adjusted. The servo motor 22 is electrically connected to the controller 9. Since the spraying shape of the atomizing nozzle 36 is conical, the height of the atomizing nozzle 36 is adjusted according to the height of the crops, so that the water and fertilizer sprayed by several atomizing nozzles 36 can fully cover the crops.

[0037] As a further implementation scheme of the above invention: the transmission arms 31 in the two groups of unfolded spraying mechanisms 3 are fixedly connected, and the two groups of transmission arms 31 are movably installed inside the adjustment frame 21 and are threadedly connected with the adjustment screw 23, ensuring that the adjustment screw 23 can drive the transmission arms 31 to move when rotating, thereby realizing the adjustment of the height of the two groups of unfolded spraying mechanisms 3.

[0038] As a further implementation scheme of the above invention: the scissors-type telescopic frame 33 is hinged by several connecting rods 331 distributed in an "X" shape, and the hinge positions of the several connecting rods are provided with hinge shafts. One end of the scissors-type telescopic frame 33 is movably connected to the bottom of the transmission arm 31, so as to limit the scissors-type telescopic frame 33 as a whole, thereby ensuring that the scissors-type telescopic frame 33 is stably connected to the transmission arm 31 and can be retracted and expanded. The hinge shaft at one end of the scissors-type telescopic frame 33 close to the transmission arm 31 is fixedly connected to the adjusting slider 37, and the adjusting slider 37 is fixedly connected to the second hinge shaft at one end of the scissors-type telescopic frame 33 close to the transmission arm 31. When the adjusting slider 37 moves driven by the electric telescopic rod 32, the scissors-type telescopic frame 33 can be driven to retract or expand as a whole through the hinge shaft. At the same time, the adjusting slider 37 can also assist in limiting the position of the scissors-type telescopic frame 33 to ensure the stability of the scissors-type telescopic frame 33 during operation.

[0039] As a further implementation scheme of the above invention: the three-way connector 34 is fixedly connected to the hinge shaft in the middle of the three-way connector 34, and the adjacent three-way connectors 34 are fixedly connected through a hose to ensure that water and fertilizer can be supplied to all atomizing pipes 35 and atomizing nozzles 36 through the three-way connector 34. A threaded plug is provided on the three-way connector 34 at one end away from the transmission arm 31 to block the three-way connector 34 at the end to prevent water and fertilizer leakage.

[0040] As a further implementation scheme of the above invention: the electric telescopic rod 32 is fixedly installed on the top of the transmission arm 31, the adjusting slider 37 is slidably connected to the transmission arm 31, the electric telescopic rod 32 is electrically connected to the controller 9, and the electric telescopic rod 32 can drive the adjusting slider 37 to move under the control of the controller 9 to achieve the adjustment of the scissor-type telescopic frame 33 and the push plate 42. The electric telescopic rod 32 is a prior art and is commercially available.

[0041] As a further implementation scheme of the above invention: the push plate 42 is fixedly connected to one end of the pressurized ball balloon 43 away from the one-way air inlet valve 44 and the one-way air outlet valve 45. When the electric telescopic rod 32 drives the scissors-type telescopic frame 33 to unfold, it can synchronously drive the push plate 42 to move, pulling one end of the pressurized ball balloon 43 to move for exhaust. The pressurized ball balloon 43 is an accordion-like structure as a whole. After spraying is completed, the electric telescopic rod 32 drives the scissors-type telescopic frame 33 to contract, driving the push plate 42 to move synchronously, compressing the pressurized ball balloon 43, and limiting it through the one-way valve, guiding the airflow into the three-way connector 34, the atomizing pipe 35 and the atomizing nozzle 36, and cleaning the atomizing nozzle 36 through the airflow.

[0042] As a further implementation scheme of the above invention: the winding roller 51 is movably installed on the top of the mobile vehicle 1, and a connecting groove 54 is opened inside one end of the winding roller 51. One end of the connecting groove 54 is fixedly connected to the water supply hose 52, and a rotating joint 53 is fixedly installed on the other end. The rotating joint 53 is located on the central axis of the winding roller 51. When the device moves, the winding roller 51 can unfold the water supply hose 52, and the water inlet of the water pump 55 is connected to the water supply hose 52 through the rotating joint 53 and the connecting groove 54, ensuring that the water inlet of the water pump 55 is still connected to the water supply hose 52 when the winding roller 51 rotates. The water inlet of the water pump 55 is connected to the water supply hose 52 through the rotating joint 53 and the connecting groove 54, and water and fertilizer can be supplied to the device through an external water storage mechanism. There is no need to carry a water source, which reduces the size of the device. At the same time, there is no need to frequently stop the device for water replenishment, which improves the spraying efficiency. The water pump 55 is electrically connected to the controller 9. The water pump 55 is a prior art and is commercially available.

[0043] A fertilization method of a watering and fertilizing device for seedling cultivation, comprising the following operating steps:

[0044] S1. Connect one end of the water supply hose 52 to the existing water storage mechanism, which is a water bucket or a water tank. The water storage mechanism stores water and fertilizer. A remote control device adapted to the controller 9 sends a command to the controller 9. The controller 9 controls the electric telescopic rods 32 in the two sets of spraying mechanisms 3 to start. The output shaft of the electric telescopic rod 32 extends to drive the adjustment slider 37 to move. According to the area of ​​the seedling raising area, the scissor-type telescopic frame 33 is adaptively unfolded;

[0045] S2. When the scissor-type telescopic frame 33 is unfolded, it drives the three-way connectors 34, the atomizing pipe 35 and the atomizing nozzles 36 to move, so that the spraying area of ​​the atomizing nozzles 36 can cover the seedling area. Then, the adjusting screw rod 23 is driven to rotate by the servo motor 22, and the two sets of transmission arms 31 are driven to move upward or downward. The height of the two sets of unfolded spraying mechanisms 3 is adjusted according to the height of the crops. Since the spraying shape of the atomizing nozzle 36 is conical, the height of the atomizing nozzle 36 is adjusted, so that the water and fertilizer sprayed by the atomizing nozzles 36 can fully cover the crops.

[0046] S3, the water pump 55 is started to pump water and fertilizer along the water supply hose 52, and introduces it into the water inlet pipe 38 of the two groups of spraying mechanisms 3 along the dispersion box 56, and conducts it through the three-way connector 34 and the atomizing pipe 35, and is sprayed out after being atomized by the atomizing nozzle 36 to fertilize the crops. At the same time, the controller 9 controls the driving motor 8 to drive the walking wheel 7 to rotate, drive the device to move in the seedling raising area, and comprehensively fertilize the crops in the seedling raising area;

[0047] S4. When the device moves, the winding roller 51 unfolds the water supply hose 52, and the water inlet of the water pump 55 is connected to the water supply hose 52 through the rotating joint 53 and the connecting groove 54, ensuring that the water inlet of the water pump 55 is still connected to the water supply hose 52 when the winding roller 51 rotates;

[0048] S5. When the output shaft of the electric telescopic rod 32 extends to drive the scissor-type telescopic frame 33 to unfold, the electric telescopic rod 32 synchronously drives the adjusting slider 37 and the push plate 42 to move, and the push plate 42 drives one end of the pressurized ball balloon 43 to move, and inhales air along the one-way air inlet valve 44. After the watering and fertilizing is completed, the electric telescopic rod 32 drives the scissor-type telescopic frame 33 to contract and synchronously drives the adjusting slider 37 and the push plate 42 to reset. The push plate 42 moves to squeeze the pressurized ball balloon 43, and the gas in the pressurized ball balloon 43 is introduced into the water inlet pipe 38 through the one-way air outlet valve 45, and is restricted by the one-way water inlet valve 39, so that the gas is discharged through the three-way connector 34, the atomizing pipe 35 and along the atomizing nozzle 36, and the atomizing nozzle 36 is cleaned by the airflow.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A watering and fertilizing device for seedling cultivation, comprising a mobile vehicle (1), a battery module (6) is arranged at the rear of the top of the mobile vehicle (1), a controller (9) is fixedly installed at the front of the top, and the controller (9) is electrically connected to the battery module (6), and walking wheels (7) are movably installed at the four corners of the bottom of the mobile vehicle (1), characterized in that: A height adjustment mechanism (2) is arranged on the top of the mobile vehicle (1), and both sides of the height adjustment mechanism (2) are provided with an unfolding spraying mechanism (3). The height adjustment mechanism (2) can drive the unfolding spraying mechanism (3) to move upward or downward, and two groups of the unfolding spraying mechanisms (3) can be unfolded on both sides of the height adjustment mechanism (2). The unfolding spraying mechanism (3) comprises a transmission arm (31), an electric telescopic rod (32) fixedly mounted on the transmission arm (31), an adjusting slider (37) fixedly connected to the output shaft of the electric telescopic rod (32), a scissor-type telescopic frame (33) movably mounted on the transmission arm (31), a plurality of three-way connectors (34) arranged at the bottom of the scissor-type telescopic frame (33), an atomizing pipe (35) and an atomizing nozzle (36) fixedly connected to the three-way connector (34), and a water inlet pipe (38) fixedly connected to the three-way connector (34). The scissor-type telescopic frame (33) is connected to the electric telescopic rod (32) through the adjusting slider (37). The transmission arm (32) is connected to the transmission arm (31) by transmission, and a compressed air cleaning mechanism (4) is arranged on the top of the transmission arm (31), and the compressed air cleaning mechanism (4) includes a mounting cage (41), a compressed air sac (43) and a push plate (42) arranged inside the mounting cage (41), a one-way air inlet valve (44) and a one-way air outlet valve (45) fixedly connected to one end of the compressed air sac (43), the push plate (42) is fixedly connected to the adjusting slider (37), and the one-way air outlet valve (45) is connected to the water inlet pipe (38). ) is fixedly connected, a water supply mechanism (5) is arranged on the top of the mobile vehicle (1), and the water supply mechanism (5) comprises a winding roller (51), a water supply hose (52) wound around the outside of the winding roller (51), a water pump (55) and a dispersion box (56) fixedly installed on the top of the mobile vehicle (1), a water inlet of the water pump (55) is connected to the water supply hose (52), a water outlet is fixedly connected to the dispersion box (56), and the dispersion box (56) is fixedly connected to the water inlet pipe (38).

2. A watering and fertilizing device for seedling cultivation according to claim 1, characterized in that: Support arms are fixedly mounted at the four corners of the bottom of the mobile vehicle (1); the travel wheels (7) are movably mounted on the mobile vehicle (1) via the support arms; drive motors (8) are fixedly mounted on the two groups of support arms at the front end of the bottom of the mobile vehicle (1); the output shaft of the drive motor (8) is fixedly connected to the travel wheels (7) on the support arms; and the drive motor (8) is electrically connected to the controller (9).

3. A watering and fertilizing device for seedling cultivation according to claim 1, characterized in that: The height adjustment mechanism (2) comprises an adjustment frame (21) fixedly mounted on the top of the mobile vehicle (1); a servo motor (22) is fixedly mounted on the top of the adjustment frame (21); an adjustment screw rod (23) located inside the adjustment frame (21) is fixedly connected to the output shaft of the servo motor (22); and the servo motor (22) is electrically connected to a controller (9).

4. A watering and fertilizing device for seedling cultivation according to claim 3, characterized in that: The transmission arms (31) in the two sets of the deployment spraying mechanisms (3) are fixedly connected, and the two sets of transmission arms (31) are movably installed inside the adjustment frame (21) and are threadedly connected to the adjustment screw rod (23).

5. A watering and fertilizing device for seedling cultivation according to claim 1, characterized in that: The scissor-type telescopic frame (33) is formed by hingedly connecting a plurality of connecting rods (331) distributed in an "X" shape, and a hinge shaft is provided at the hinged positions of the plurality of connecting rods (331). One end of the scissor-type telescopic frame (33) is movably connected to the bottom of the transmission arm (31), and the hinge shaft at one end of the scissor-type telescopic frame (33) close to the transmission arm (31) is fixedly connected to the adjustment slider (37).

6. A watering and fertilizing device for seedling cultivation according to claim 5, characterized in that: The three-way connector (34) is fixedly connected to a hinge shaft in the middle of the three-way connector (34), adjacent three-way connectors (34) are fixedly connected via a hose, and a threaded plug is provided on the three-way connector (34) at one end away from the transmission arm (31).

7. A watering and fertilizing device for seedling cultivation according to claim 1, characterized in that: The electric telescopic rod (32) is fixedly mounted on the top of the transmission arm (31), the adjusting slider (37) is slidably connected to the transmission arm (31), and the electric telescopic rod (32) is electrically connected to the controller (9).

8. A watering and fertilizing device for seedling cultivation according to claim 1, characterized in that: The push plate (42) is fixedly connected to one end of the pressurized ball bladder (43) away from the one-way air inlet valve (44) and the one-way air outlet valve (45), and the pressurized ball bladder (43) is an accordion-shaped structure as a whole.

9. A watering and fertilizing device for seedling cultivation according to claim 1, characterized in that: The winding roller (51) is movably mounted on the top of the mobile vehicle (1); a connecting groove (54) is provided inside one end of the winding roller (51); one end of the connecting groove (54) is fixedly connected to a water supply hose (52); a rotating joint (53) is fixedly mounted on the other end; the rotating joint (53) is located on the central axis of the winding roller (51); a water inlet of the water pump (55) is connected to the water supply hose (52) via the rotating joint (53) and the connecting groove (54); and the water pump (55) is electrically connected to a controller (9).

10. A fertilization method according to any one of claims 1 to 9, characterized in that: The steps include: S1. Connect one end of the water supply hose (52) to an existing water storage mechanism, which is a water bucket or a water tank. The water storage mechanism stores water and fertilizer. Send a command to the controller (9) through a remote control device adapted to the controller (9). The controller (9) controls the two sets of electric telescopic rods (32) in the deployment spraying mechanism (3) to start. The electric telescopic rods (32) The output shaft extends to drive the adjusting slider (37) to move, and the scissor-type telescopic frame (33) is adaptively unfolded according to the area of ​​the seedling raising area; S2, when the scissor-type telescopic frame (33) is unfolded, it drives the plurality of three-way connectors (34), the atomizing pipe (35) and the atomizing nozzles (36) to move, so that the spraying area of ​​the plurality of atomizing nozzles (36) can cover the seedling raising area, and then the adjusting screw rod (23) is driven to rotate by the servo motor (22), so as to drive the two sets of transmission arms (31) to move upward or downward, and the height of the two sets of unfolded spraying mechanisms (3) is adjusted according to the height of the crops. Since the spraying shape of the atomizing nozzle (36) is conical, the height of the atomizing nozzle (36) is adjusted, so that the water and fertilizer sprayed by the plurality of atomizing nozzles (36) can fully cover the crops; S3, the water pump (55) is started to pump water and fertilizer along the water supply hose (52), and is introduced into the water inlet pipes (38) of the two groups of spraying mechanisms (3) along the dispersion box (56), and is transmitted through the three-way connector (34) and the atomizing pipe (35), and is sprayed out after being atomized by the atomizing nozzle (36) to fertilize the crops. At the same time, the controller (9) controls the driving motor (8) to drive the running wheel (7) to rotate, and drives the device to move in the seedling raising area, so as to fully fertilize the crops in the seedling raising area. S4. When the device moves, the reel (51) unfolds the water supply hose (52), and the water inlet of the water pump (55) is connected to the water supply hose (52) through the rotary joint (53) and the connecting groove (54), ensuring that the water inlet of the water pump (55) is still connected to the water supply hose (52) when the reel (51) rotates; S5. When the output shaft of the electric telescopic rod (32) extends to drive the scissor-type telescopic frame (33) to unfold, the electric telescopic rod (32) The adjusting slider (37) and the push plate (42) are synchronously driven to move, and the push plate (42) drives one end of the pressurized ball balloon (43) to move, and air is sucked along the one-way air inlet valve (44). After the watering and fertilizing is completed, the electric telescopic rod (32) drives the scissor-type telescopic frame (33) to contract and synchronously drives the adjusting slider (37) and the push plate (42) to reset. The push plate (42) moves to squeeze the pressurized ball balloon (43), and the gas in the pressurized ball balloon (43) is introduced into the water inlet pipe (38) through the one-way air outlet valve (45), and is restricted by the one-way water inlet valve (39), so that the gas is discharged through the three-way connector (34), the atomizing pipe (35) and along the atomizing nozzle (36), and the atomizing nozzle (36) is cleaned by the air flow.

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