Method and device for automatically fertilizing crops under overlarge temperature difference

Abstract

The present application relates to the technical field of crop planting, and discloses a method and device for automatically fertilizing crops under an overlarge temperature difference. The method of the present application comprises the following steps: S1, temperature acquisition, S2, crop fertilization, and S3, temperature compensation. In the present application, acquisition and temperature comparison of an ambient temperature around crops are performed, a temperature in a greenhouse is compensated, the crops are automatically fertilized, nutrient fertilizer required by growth of the crops in a low-temperature state is supplemented, and an ambient temperature in the greenhouse is increased, thereby improving the growth effect of the crops; and a spraying head is driven to move in a ring shape in the direction of a ring-shaped guide groove, the spraying head is driven to swing reciprocatingly during ring-shaped movement, and the spraying head performs comprehensive spraying and fertilization on the crops in the greenhouse during ring-shaped movement and reciprocatingly swinging, so as to evenly spray a fertilizer solvent on the crops, thereby facilitating automatic fertilization of crops under the condition of the overlarge temperature difference, and improving the convenience and effect of crop fertilization.

Description

A method and device for automatically fertilizing crops under conditions of excessive temperature difference Technical Field

[0001] The present invention relates to the technical field of crop planting, and in particular to a method and device for automatically fertilizing crops under conditions of excessive temperature differences. Background Art

[0002] The growth and development of various crops and the conduct of agricultural activities all require certain temperature conditions. The germination of crops at each development stage and the completion of each growth stage all require a certain starting temperature. If the temperature difference between the greenhouse and the external environment temperature is too large, the low temperature will affect the normal development of crops.

[0003] However, existing technologies still have some drawbacks when fertilizing crops when the temperature difference is too large:

[0004] When the temperature difference is too large, the existing technology cannot spray fertilizer evenly on the crops during the fertilization process. At the same time, the multiple nozzles in the greenhouse are mostly unable to achieve full fertilization of the crops, thus affecting the fertilization effect of the crops and further affecting the normal growth of the crops when the temperature difference is too large.

[0005] At the same time, during the process of fertilizing crops, fertilizers are prone to sedimentation. Once the fertilizers are precipitated, the nutrients in the fertilizers cannot be quickly absorbed by the crops, thus affecting the fertilization effect of the crops.

[0006] In response to the above problems, the inventors propose a method and device for automatically fertilizing crops under conditions of large temperature differences to solve the above problems. Summary of the Invention

[0007] In order to solve the problem of poor fertilization effect of crops when the temperature difference is too large, the purpose of the present invention is to provide a method and device for automatically fertilizing crops when the temperature difference is too large.

[0008] To solve the above technical problems, the present invention adopts the following technical solution: a method for automatically fertilizing crops under large temperature differences, comprising the following steps:

[0009] S1. Temperature collection

[0010] First, the ambient temperature around the crops is collected through a temperature sensor and compared with the external ambient temperature;

[0011] S2. Fertilization of crops

[0012] If the temperature difference is greater than the set temperature difference interval, the crops will be fertilized through the automatic fertilization equipment to supplement the fertilizer required for crop growth under low temperature conditions;

[0013] S3, temperature compensation

[0014] If the temperature difference is greater than the set temperature difference interval, the surrounding environment of the crops will be heated by the heating equipment at the same time, so that the surrounding temperature of the crops matches the external environment temperature.

[0015] A device for solving the problem of automatic fertilization of crops under excessive temperature difference comprises an annular top frame, a fertilizer tank is fixedly provided in the middle of the annular top frame, four evenly distributed L-shaped fixing rods are fixedly installed in the middle of the fertilizer tank, one end of the L-shaped fixing rod away from the fertilizer tank is fixedly connected to the upper surface of the annular top frame, a feeding pipe is fixedly installed at the top of the fertilizer tank, a discharge pipe is provided at the bottom end of the fertilizer tank, a rotating sleeve is fixedly installed at the bottom end of the fertilizer tank, one end of the discharge pipe is rotatably connected to the inner wall of the rotating sleeve, an automatic fertilizing mechanism and a swinging spraying mechanism are respectively provided on the lower surface of the annular top frame, and a stirring mechanism is provided inside the fertilizer tank.

[0016] Preferably, the automatic fertilizing mechanism includes an L-shaped frame, a nozzle is provided on one side of the L-shaped frame, an end of the discharge pipe away from the rotating sleeve is fixedly connected to one end of the nozzle, an annular guide groove is provided on the lower surface of the annular top frame, a movable seat is provided inside the annular guide groove, balls are provided on both sides of the movable seat, the outer walls of the two balls are in movably contact with the side walls of the annular guide groove, a connecting rod is fixedly installed on the lower surface of the movable seat, and the end of the connecting rod away from the movable seat is fixedly connected to the upper surface of the L-shaped frame.

[0017] Preferably, arc blocks are provided on both sides of the movable seat, one side of the arc block is in movably contact with the outer wall of the ball, one side of the two arc blocks is fixedly installed with a connecting shaft, the connecting shaft and the ball are rotatably connected, two telescopic rods are fixedly installed on both sides of the movable seat, the piston ends of two adjacent telescopic rods are fixedly connected to the other side of a arc block, the outer wall of the telescopic rod is movably sleeved with a telescopic spring, one end of two adjacent telescopic springs is fixedly connected to one side of the movable seat, and the other end of two adjacent telescopic springs is fixedly connected to the other side of the arc block.

[0018] Preferably, a plurality of evenly distributed L-shaped support frames are fixedly mounted on the upper surface of the annular top frame, a first rotating rod is rotatably mounted on the surface of the L-shaped support frame, a transmission wheel is fixedly mounted on one end of the first rotating rod, a transmission belt is installed between the plurality of transmission wheels, a synchronization rod is fixedly mounted on the outer side of the transmission belt, and the end of the synchronization rod away from the transmission belt is fixedly connected to one side of the L-shaped frame.

[0019] Preferably, a motor is fixedly installed in the middle of the annular top frame, a second rotating rod is fixedly installed at the driving output end of the motor, a first synchronous wheel is fixedly installed at one end of the second rotating rod close to the motor and the other end of one of the first rotating rods, and a first synchronous belt is installed for transmission between the two first synchronous wheels.

[0020] Preferably, the oscillating spraying mechanism includes two rotating shafts, one end of the two rotating shafts is fixedly connected to one end of the nozzle, one end of one of the rotating shafts away from the nozzle is rotatably connected to one side of the L-shaped frame, and the other end of the rotating shaft away from the nozzle is fixedly installed with an oscillating plate.

[0021] The transmission gear of the present invention is a gear which is connected with the gear of the driven gear to form a gear of the driven gear. The transmission gear of the present invention is a gear which is connected with the gear of the driven gear to form a gear of the driven gear. The transmission gear of the present invention is a gear which is connected with the gear of the driven gear to form a gear of the driven gear.

[0022] Preferably, the stirring mechanism includes a stirring rod, one end of which is rotatably connected to the top of the fertilizer tank, a sleeve is fixedly mounted on the outer wall of the stirring rod, and a plurality of evenly distributed stirring paddles are fixedly mounted on the outer wall of the sleeve.

[0023] Preferably, a second synchronous wheel is fixedly mounted on one end of the second rotating rod away from the motor and one end of the stirring rod, and a second synchronous belt is installed between the two second synchronous wheels.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. In the present invention, by collecting and comparing the ambient temperature of crops and compensating the temperature in the greenhouse, crops are automatically fertilized, the nutrients and fertilizers required for crop growth under low temperature conditions are supplemented, and the ambient temperature in the greenhouse is increased, thereby improving the growth effect of crops;

[0026] 2. In the present invention, the nozzle is driven to move in a circular shape along the direction of the annular guide groove, and is driven to swing back and forth during the circular movement. During the circular movement and the reciprocating swing, the nozzle comprehensively sprays and fertilizes the crops in the greenhouse, and the fertilizer solvent is evenly sprayed on the crops, thereby conveniently realizing automatic fertilization of crops under conditions of excessive temperature differences and improving the convenience and effect of crop fertilization.

[0027] 3. In the present invention, the stirring rod is driven to rotate during the process of fertilizing crops. The stirring rod rotates the stirring paddle through the sleeve, and the stirring paddle stirs the fertilizer in the fertilizer tank to avoid precipitation of the fertilizer solvent in the fertilizer tank. This facilitates the synchronous stirring of the fertilizer solvent during the fertilization of crops and further improves the effect of crop fertilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] FIG1 is a schematic diagram of the overall structure of the present invention.

[0030] FIG2 is an enlarged schematic diagram of portion A in FIG1 of the present invention.

[0031] FIG3 is a schematic diagram of the bottom structure of the annular top frame of the present invention.

[0032] FIG4 is an enlarged schematic diagram of portion B in FIG3 of the present invention.

[0033] FIG5 is a schematic cross-sectional view of the annular top frame and the fertilizer tank of the present invention.

[0034] FIG6 is an enlarged schematic diagram of portion C in FIG5 of the present invention.

[0035] FIG7 is an enlarged schematic diagram of portion D in FIG5 of the present invention.

[0036] FIG8 is a schematic diagram of the connection structure of the automatic fertilizing mechanism, the swing spraying mechanism and the stirring mechanism of the present invention.

[0037] FIG9 is an enlarged schematic diagram of portion E in FIG8 of the present invention.

[0038] FIG10 is an enlarged schematic diagram of portion F in FIG8 of the present invention.

[0039] FIG11 is a schematic diagram of the connection structure between the ball and the movable seat of the present invention.

[0040] In the figure: 1. Annular top frame; 2. Fertilizer tank; 21. L-shaped fixing rod; 22. Feeding pipe; 23. Discharge pipe; 24. Rotating sleeve; 3. Automatic fertilizing mechanism; 31. L-shaped frame; 32. Sprinkler; 33. Annular guide groove; 34. Moving seat; 35. Ball bearing; 36. Connecting rod; 37. Arc block; 38. Connecting shaft; 39. Telescopic rod; 4. Telescopic spring; 42. L-shaped support frame; 43. First rotating rod; 44. Transmission wheel; 45. Transmission belt; 46. Synchronous rod; 47. Motor; 48. Second rotating rod Rod; 49, first synchronous wheel; 491, first synchronous belt; 5, swing spray mechanism; 51, rotating shaft; 52, swing plate; 53, annular rack; 54, fixed frame; 55, third rotating rod; 56, driving gear; 57, first transmission rod; 58, first bevel gear; 59, second transmission rod; 6, second bevel gear; 61, driving handle; 62, driving rod; 63, movable groove; 7, stirring mechanism; 71, stirring rod; 72, sleeve; 73, stirring paddle; 74, second synchronous wheel; 75, second synchronous belt. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0042] Example: As shown in Figures 1-11, the present invention provides a method for automatically fertilizing crops under conditions of large temperature differences, comprising the following steps:

[0043] S1. Temperature collection

[0044] First, the ambient temperature around the crops is collected through a temperature sensor and compared with the external ambient temperature;

[0045] S2. Fertilization of crops

[0046] If the temperature difference is greater than the set temperature difference interval, the crops will be fertilized through the automatic fertilization equipment to supplement the fertilizer required for crop growth under low temperature conditions;

[0047] S3, temperature compensation

[0048] If the temperature difference is greater than the set temperature difference interval, the surrounding environment of the crops will be heated by the heating equipment at the same time, so that the surrounding temperature of the crops matches the external environment temperature.

[0049] By adopting the above technical solution, in the present invention, by collecting and comparing the ambient temperature of the crops and compensating the temperature in the greenhouse, the crops are automatically fertilized, the nutrients and fertilizers required for the growth of crops under low temperature conditions are supplemented, the ambient temperature in the greenhouse is increased, and thus the growth effect of the crops is improved.

[0050] The present invention also provides a device for automatically fertilizing crops under conditions of excessively large temperature differences, comprising an annular top frame 1, a fertilizer tank 2 being fixedly mounted in the middle of the annular top frame 1, four evenly distributed L-shaped fixing rods 21 being fixedly mounted in the middle of the fertilizer tank 2, one end of the L-shaped fixing rod 21 away from the fertilizer tank 2 being fixedly connected to the upper surface of the annular top frame 1, a feeding pipe 22 being fixedly mounted at the top of the fertilizer tank 2, a discharge pipe 23 being provided at the bottom end of the fertilizer tank 2, a rotating sleeve 24 being fixedly mounted at the bottom end of the fertilizer tank 2, one end of the discharge pipe 23 being rotatably connected to the inner wall of the rotating sleeve 24, an automatic fertilizing mechanism 3 and a swinging spraying mechanism 5 being respectively mounted on the lower surface of the annular top frame 1, and a stirring mechanism 7 being provided inside the fertilizer tank 2.

[0051] By adopting the above technical solution, an annular top frame 1 is provided. When in use, the annular top frame 1 is installed in the middle position of the top of the greenhouse. By providing a fertilizer tank 2, a feeding pipe 22 and a discharge pipe 23, the feeding pipe 22 is convenient for the staff to add the prepared fertilizer solvent into the fertilizer tank 2, and the fertilizer solvent in the fertilizer tank 2 is discharged through the discharge pipe 23. By providing an automatic fertilizing mechanism 3 and a swinging spraying mechanism 5, the automatic fertilizing mechanism 3 and the swinging spraying mechanism 5 spray and fertilize the crops in the greenhouse in an all-round way, thereby improving the convenience of fertilizing the crops planted in the greenhouse and, at the same time, improving the fertilizing effect of the crops in the greenhouse. By providing a stirring mechanism 7, the stirring mechanism 7 stirs the fertilizer solvent in the fertilizer tank 2 to avoid the precipitation of the fertilizer solvent during the fertilization process, thereby further improving the fertilizing effect of the crops.

[0052] The automatic fertilizing mechanism 3 includes an L-shaped frame 31, a nozzle 32 is provided on one side of the L-shaped frame 31, and the end of the discharge pipe 23 away from the rotating sleeve 24 is fixedly connected to one end of the nozzle 32. An annular guide groove 33 is provided on the lower surface of the annular top frame 1, and a movable seat 34 is provided inside the annular guide groove 33. Balls 35 are provided on both sides of the movable seat 34. The outer walls of the two balls 35 are in movable contact with the side walls of the annular guide groove 33. A connecting rod 36 is fixedly installed on the lower surface of the movable seat 34, and the end of the connecting rod 36 away from the movable seat 34 is fixedly connected to the upper surface of the L-shaped frame 31.

[0053] By adopting the above technical solution, the fertilizer solvent in the fertilizer tank 2 flows into the nozzle 32 through the discharge pipe 23. By driving the L-shaped frame 31 to move in a circular shape, the L-shaped frame 31 causes the nozzle 32 to move in a circular shape, and the plants in the greenhouse in the nozzle 32 are automatically sprayed and fertilized. By providing the rotating sleeve 24, when the nozzle 32 moves in a circular shape, the end of the discharge pipe 23 close to the rotating sleeve 24 rotates, thereby avoiding the entanglement of the discharge pipe 23. By providing the annular guide groove 33, the movable seat 34, the ball 35 and the connecting rod 36, when the L-shaped frame 31 moves in a circular shape, the L-shaped frame 31 causes the movable seat 34 and the ball 35 to move in a synchronous circular shape through the connecting rod 36, and the ball 35 rotates in the annular guide groove 33, forcing the L-shaped frame 31 and the nozzle 32 to move only in a circular shape, thereby improving the stability of the L-shaped frame 31 and the nozzle 32.

[0054] Arc blocks 37 are provided on both sides of the movable seat 34, one side of the arc block 37 is in movable contact with the outer wall of the ball 35, and a connecting shaft 38 is fixedly installed on one side of the two arc blocks 37, and the connecting shaft 38 is rotatably connected to the ball 35. Two telescopic rods 39 are fixedly installed on both sides of the movable seat 34, and the piston ends of two adjacent telescopic rods 39 are fixedly connected to the other side of an arc block 37. The outer wall of the telescopic rod 39 is movably sleeved with a telescopic spring 4, and one end of two adjacent telescopic springs 4 is fixedly connected to one side of the movable seat 34, and the other end of two adjacent telescopic springs 4 is fixedly connected to the other side of the arc block 37.

[0055] By adopting the above technical solution, by providing the arc block 37, the connecting shaft 38, the telescopic rod 39 and the telescopic spring 4, the movable seat 34 causes the ball 35 to move in an annular shape through the telescopic rod 39, the telescopic spring 4, the arc block 37 and the connecting shaft 38. At the same time, the ball 35 rotates in the annular guide groove 33 with the axis of the connecting shaft 38 as the center of the circle. At the same time, the extension of the telescopic rod 39 and the telescopic spring 4 ensures that the ball 35 is always in contact with the side wall of the annular guide groove 33.

[0056] A plurality of evenly distributed L-shaped support frames 42 are fixedly mounted on the upper surface of the annular top frame 1, a first rotating rod 43 is rotatably mounted on the surface of the L-shaped support frame 42, a transmission wheel 44 is fixedly mounted on one end of the first rotating rod 43, a transmission belt 45 is installed between the plurality of transmission wheels 44, a synchronization rod 46 is fixedly mounted on the outer side of the transmission belt 45, and the end of the synchronization rod 46 away from the transmission belt 45 is fixedly connected to one side of the L-shaped frame 31.

[0057] By adopting the above technical solution, by rotating the first rotating rod 43 , the first rotating rod 43 transmits the transmission belt 45 through the transmission wheel 44 , and the transmission belt 45 transmits the L-shaped frame 31 and the nozzle 32 in an annular shape through the synchronization rod 46 .

[0058] A motor 47 is fixedly installed in the middle of the annular top frame 1, and a second rotating rod 48 is fixedly installed on the driving output end of the motor 47. A first synchronous wheel 49 is fixedly installed on one end of the second rotating rod 48 close to the motor 47 and the other end of one of the first rotating rods 43. A first synchronous belt 491 is installed for transmission between the two first synchronous wheels 49.

[0059] By adopting the above technical solution, by turning on the motor 47 , the driving shaft of the motor 47 rotates the second rotating rod 48 , and the second rotating rod 48 rotates the first rotating rod 43 through the two first synchronous wheels 49 and the first synchronous belt 491 .

[0060] The oscillating spraying mechanism 5 includes two rotating shafts 51, one end of the two rotating shafts 51 is fixedly connected to one end of the nozzle 32, one end of one rotating shaft 51 away from the nozzle 32 is rotatably connected to one side of the L-shaped frame 31, and the other end of the rotating shaft 51 away from the nozzle 32 is fixedly installed with an oscillating plate 52.

[0061] By adopting the above technical solution, by setting a rotating shaft 51, when the rotating shaft 51 rotates back and forth, the rotating shaft 51 causes the nozzle 32 to swing back and forth with the axis of the rotating shaft 51 as the center of the circle. During the reciprocating swing process, the nozzle 32 comprehensively sprays and fertilizes the crops in the greenhouse, and evenly sprays the fertilizer solvent on the crops.

[0062] The lower surface of the annular top frame 1 is fixedly mounted with an annular rack 53, and one side of the L-shaped frame 31 is fixedly mounted with a fixing frame 54, and a third rotating rod 55 is rotatably mounted on the fixing frame 54, and one end of the third rotating rod 55 is fixedly mounted with a driving gear 56. The annular rack 53 and the driving gear 56 are meshed and connected. The middle part of the third rotating rod 55 and one end of the first transmission rod 57 are fixedly mounted with a first bevel gear 58, and the two first bevel gears 58 are meshed with each other. The other end of the first transmission rod 57 and one end of the second transmission rod 59 are fixedly mounted with a second bevel gear 6, and the two second bevel gears 6 are meshed with each other. One end of the second transmission rod 59 is fixedly mounted with a driving handle 61, and the end of the driving handle 61 away from the second transmission rod 59 is fixedly mounted with a driving rod 62. A movable groove 63 is provided on one side of the swing plate 52, and the end of the driving rod 62 away from the driving handle 61 is movably contacted with one end of the movable groove 63.

[0063] By adopting the above technical solution, by providing a fixed frame 54, when the L-shaped frame 31 moves in an annular shape, the L-shaped frame 31 causes the third rotating rod 55 and the driving gear 56 to move in an annular shape synchronously through the fixed frame 54, and the annular rack 53 causes the driving gear 56 to rotate during the annular movement, and the driving gear 56 rotates the third rotating rod 55. The third rotating rod 55 rotates the first transmission rod 57 through the two first bevel gears 58, and the first transmission rod 57 rotates the second transmission rod 59 through the two second bevel gears 6. The second transmission rod 59 causes the driving rod 62 to revolve around the axis of the second transmission rod 59 as the center of the circle through the driving handle 61. The driving rod 62 moves in the movable groove 63 and causes the swing plate 52 to swing back and forth around the axis of the rotating shaft 51 as the center of the circle through the movable groove 63.

[0064] The stirring mechanism 7 includes a stirring rod 71 , one end of which is rotatably connected to the top of the fertilizer tank 2 , a sleeve 72 is fixedly mounted on the outer wall of the stirring rod 71 , and a plurality of stirring paddles 73 evenly distributed are fixedly mounted on the outer wall of the sleeve 72 .

[0065] By adopting the above technical solution, during the process of fertilizing crops, the stirring rod 71 is driven to rotate, and the stirring rod 71 rotates the stirring paddle 73 through the sleeve 72, and the stirring paddle 73 stirs the fertilizer in the fertilizer tank 2 to avoid precipitation of the fertilizer solvent in the fertilizer tank 2.

[0066] A second synchronous wheel 74 is fixedly mounted on one end of the second rotating rod 48 away from the motor 47 and one end of the stirring rod 71 . A second synchronous belt 75 is installed between the two second synchronous wheels 74 .

[0067] By adopting the above technical solution, when the second rotating rod 48 rotates, the second rotating rod 48 causes the stirring rod 71 to rotate synchronously through the two second synchronous wheels 74 and the second synchronous belt 75 .

[0068] Working principle: When it is necessary to fertilize the crops in the greenhouse, before use, the annular top frame 1 is installed in the middle of the top of the greenhouse, and the prepared fertilizer solvent is added to the fertilizer tank 2 through the feeding pipe 22. The fertilizer solvent in the fertilizer tank 2 flows into the nozzle 32 through the discharge pipe 23;

[0069] When the temperature in the greenhouse is low, the motor 47 and the nozzle 32 are started at the same time. The drive shaft of the motor 47 rotates the second rotating rod 48, and the second rotating rod 48 rotates the corresponding first rotating rod 43 through the two first synchronous wheels 49 and the first synchronous belt 491. At this time, the multiple first rotating rods 43 and the multiple transmission wheels 44 transmit the transmission belt 45. The transmission belt 45 causes the L-shaped frame 31 and the nozzle 32 to move in a circular shape through the synchronous rod 46. The L-shaped frame 31 causes the movable seat 34 and the two ball bearings 35 to move synchronously in a circular shape along the inner wall of the annular guide groove 33 through the connecting rod 36. During the circular movement, the nozzle 32 automatically sprays and fertilizes the crops in the greenhouse.

[0070] At the same time, the L-shaped frame 31 causes the third rotating rod 55 and the driving gear 56 to move in a synchronous annular manner through the fixed frame 54, and the annular rack 53 causes the driving gear 56 to rotate during the annular movement, and the driving gear 56 causes the third rotating rod 55 to rotate, and the third rotating rod 55 causes the first transmission rod 57 to rotate through the two first bevel gears 58, and the first transmission rod 57 causes the second transmission rod 59 to rotate through the two second bevel gears 6, and the second transmission rod 59 causes the driving rod 62 to revolve around the axis of the second transmission rod 59 through the driving handle 61, and the driving rod 62 causes the swing plate 52 to swing back and forth around the axis of the rotating shaft 51 through the movable groove 63, and the rotating shaft 51 causes the sprinkler head 32 to swing back and forth. At this time, the sprinkler head 32 sprays and fertilizes the crops in the greenhouse in the process of annular movement and reciprocating swing, and sprays the fertilizer solvent evenly on the crops, thereby conveniently realizing automatic fertilization of crops under the condition of excessive temperature difference, and improving the convenience and effect of crop fertilization;

[0071] At the same time, the second rotating rod 48 rotates synchronously with the two second synchronous wheels 74 and the second synchronous belt 75 during the rotation process. The stirring rod 71 rotates the multiple stirring paddles 73 through the sleeve 72. The multiple stirring paddles 73 stir the fertilizer in the fertilizer tank 2 to avoid precipitation of the fertilizer solvent in the fertilizer tank 2, thereby conveniently realizing the synchronous stirring of the fertilizer solvent during the crop fertilization process, and further improving the effect of crop fertilization.

[0072] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An automatic fertilization method for crops under excessive temperature difference, characterized in that, It includes the following steps: S1. Temperature acquisition First, collect the ambient temperature around the crops through a temperature sensor and compare it with the external ambient temperature; S2. Fertilization of crops If the temperature difference is greater than the set temperature difference range value, fertilize the crops through an automatic fertilization device to supplement the fertilizers required for crop growth in the low-temperature state; S3. Temperature compensation If the temperature difference is greater than the set temperature difference range value, at the same time, use a heating device to raise the temperature of the environment around the crops to make the ambient temperature around the crops match the external ambient temperature.

2. An apparatus for applying the automatic fertilization method for crops under excessive temperature difference described in claim 1, comprising an annular top frame (1), characterized in that, A fertilizer tank (2) is fixedly arranged in the middle of the annular top frame (1). Four uniformly distributed L-shaped fixing rods (21) are fixedly installed in the middle of the fertilizer tank (2). One end of the L-shaped fixing rod (21) away from the fertilizer tank (2) is fixedly connected to the upper surface of the annular top frame (1). A feeding pipe (22) is fixedly installed at the top end of the fertilizer tank (2). A discharge pipe (23) is arranged at the bottom end of the fertilizer tank (2). A rotating sleeve (24) is fixedly installed at the bottom end of the fertilizer tank (2). One end of the discharge pipe (23) is rotatably connected to the inner wall of the rotating sleeve (24). An automatic fertilization mechanism (3) and a swing spraying mechanism (5) are respectively arranged on the lower surface of the annular top frame (1). A stirring mechanism (7) is arranged inside the fertilizer tank (2).

3. The device for the automatic fertilization method of crops under excessive temperature difference according to claim 2, characterized in that, The automatic fertilization mechanism (3) includes an L-shaped frame (31). A spray head (32) is arranged on one side of the L-shaped frame (31). One end of the discharge pipe (23) away from the rotating sleeve (24) is fixedly connected to one end of the spray head (32). An annular guide groove (33) is formed on the lower surface of the annular top frame (1). A moving seat (34) is arranged inside the annular guide groove (33). Two balls (35) are arranged on both sides of the moving seat (34). The outer walls of the two balls (35) are in movable contact with the side wall of the annular guide groove (33). A connecting rod (36) is fixedly installed on the lower surface of the moving seat (34). One end of the connecting rod (36) away from the moving seat (34) is fixedly connected to the upper surface of the L-shaped frame (31).

4. The device for automatically fertilizing crops under excessive temperature difference according to claim 3, characterized in that, Arc-shaped blocks (37) are arranged on both sides of the moving seat (34). One side of the arc-shaped block (37) is in movable contact with the outer wall of the ball (35). A connecting shaft (38) is fixedly installed on one side of each of the two arc-shaped blocks (37). The connecting shaft (38) is rotatably connected to the ball (35). Two telescopic rods (39) are fixedly installed on both sides of the moving seat (34). The piston ends of two adjacent telescopic rods (39) are fixedly connected to the other side of an arc-shaped block (37). A telescopic spring (4) is movably sleeved on the outer wall of the telescopic rod (39). One end of two adjacent telescopic springs (4) is fixedly connected to one side of the moving seat (34). The other end of two adjacent telescopic springs (4) is fixedly connected to the other side of the arc-shaped block (37).

5. The device for automatically fertilizing crops under excessive temperature difference according to claim 3, characterized in that, A plurality of uniformly distributed L-shaped support frames (42) are fixedly installed on the upper surface of the annular top frame (1). A first rotating rod (43) is rotatably installed on the surface of the L-shaped support frame (42). One end of the first rotating rod (43) is fixedly installed with a transmission wheel (44). A transmission belt (45) is installed in a transmission manner between the plurality of transmission wheels (44). A synchronizing rod (46) is fixedly installed on the outer side of the transmission belt (45). One end of the synchronizing rod (46) away from the transmission belt (45) is fixedly connected to one side of the L-shaped frame (31).

6. The device for automatically fertilizing crops under excessive temperature difference according to claim 5, characterized in that, A motor (47) is fixedly installed in the middle of the annular top frame (1). A second rotating rod (48) is fixedly installed at the driving output end of the motor (47). One end of the second rotating rod (48) close to the motor (47) and the other end of one of the first rotating rods (43) are both fixedly installed with a first synchronizing wheel (49). A first synchronizing belt (491) is installed in a transmission manner between the two first synchronizing wheels (49).

7. The device for automatically fertilizing crops under excessive temperature difference according to claim 3, characterized in that, The swing spraying mechanism (5) includes two rotating shafts (51). One end of each of the two rotating shafts (51) is fixedly connected to one end of the spray head (32). One end of one of the rotating shafts (51) away from the spray head (32) is rotatably connected to one side of the L-shaped frame (31). One end of the other rotating shaft (51) away from the spray head (32) is fixedly installed with a swing plate (52).

8. The device for automatically fertilizing crops under excessive temperature difference as described in claim 7, characterized in that, An annular rack (53) is fixedly installed on the lower surface of the annular top frame (1). A fixed frame (54) is fixedly installed on one side of the L-shaped frame (31). A third rotating rod (55) is rotatably installed on the fixed frame (54). One end of the third rotating rod (55) is fixedly installed with a driving gear (56). The annular rack (53) is in meshing connection with the driving gear (56). A first transmission rod (57) and a second transmission rod (59) are also respectively rotatably installed on the fixed frame (54). A first bevel gear (58) is fixedly installed at the middle of the third rotating rod (55) and one end of the first transmission rod (57). The two first bevel gears (58) are meshed with each other. A second bevel gear (6) is fixedly installed at the other end of the first transmission rod (57) and one end of the second transmission rod (59). The two second bevel gears (6) are meshed with each other. A driving handle (61) is fixedly installed at one end of the second transmission rod (59). A driving rod (62) is fixedly installed at one end of the driving handle (61) away from the second transmission rod (59). An activity groove (63) is formed on one side of the swing plate (52). One end of the driving rod (62) away from the driving handle (61) is in movable contact with one end of the activity groove (63).

9. The device for automatically fertilizing crops under excessive temperature difference as described in claim 6, wherein, The stirring mechanism (7) includes a stirring rod (71). One end of the stirring rod (71) is rotatably connected to the top end of the fertilizer tank (2). A sleeve (72) is fixedly installed on the outer wall of the stirring rod (71). A plurality of uniformly distributed stirring paddles (73) are fixedly installed on the outer wall of the sleeve (72).

10. The device for automatically fertilizing crops under excessive temperature difference as described in claim 9, characterized in that, One end of the second rotating rod (48) far from the motor (47) and one end of the stirring rod (71) are both fixedly installed with second synchronous pulleys (74), and a second synchronous belt (75) is drivingly installed between the two second synchronous pulleys (74).

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