A mobile fertilizer applicator for sandy soil planting

Abstract

The application relates to the technical field of fertilizing equipment, in particular to a mobile fertilizing machine for sandy soil planting, which comprises a bottom shell, a supporting caterpillar belt, a fertilizer storage cylinder, bilateral fixed-point spraying units, impact stirring units and the like. The bilateral fixed-point spraying units are arranged between the bottom shell and the fertilizer storage cylinder, connected with the bottom shell and the bottom end cylinder wall of the fertilizer storage cylinder. The impact stirring units are rotationally connected and arranged on the inner side of the fertilizer storage cylinder and connected with the bilateral fixed-point spraying units. The bilateral fixed-point spraying units comprise independent multi-control assemblies, circulating lifting assemblies, two-way variable spraying assemblies and automatic rotary assemblies. The bilateral fixed-point spraying units are matched with the impact stirring units, can continuously stir the fertilizer in the fertilizer storage cylinder, can multiple-stir the fertilizer, can avoid the precipitation and caking of the fertilizer, can flexibly adjust the spraying distance on both sides, can guarantee the spraying accuracy and can improve the applicability of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizer application equipment, in particular to a mobile fertilizer applicator used for planting in sandy soil. Background Art

[0002] Sandy soil refers to soil characterized by high sand content, coarse particles, rapid water infiltration, poor water retention, and good aeration. Due to its characteristics, sandy soil is suitable for growing crops such as peanuts and corn. During the cultivation process, fertilizers need to be applied to the soil or sprayed on the plants to provide nutrients and maintain and enhance soil fertility. The primary purpose of fertilization is to increase crop yields and improve crop quality. Reasonable and scientific fertilization is one of the key means of ensuring food security and maintaining sustainable agricultural development.

[0003] The existing mobile fertilizer spreader is provided with a fertilizer box. The fertilizer liquid in the fertilizer box may precipitate, resulting in uneven fertilizer distribution. Moreover, when applying fertilizer, the fertilizer cannot be accurately sprinkled to the pits, resulting in poor fertilization effect. Therefore, in view of the above situation, there is an urgent need to develop a mobile fertilizer spreader for sandy soil planting to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The object of the present invention is to provide a mobile fertilizer applicator for planting in sandy soil, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The hopper is provided with a support frame, and the support frame is symmetrically arranged on the outer side of the hopper and fixedly connected to the hopper, so as to support the hopper and realize stable movement of the hopper on the sandy soil; a fertilizer storage barrel, the fertilizer storage barrel is arranged on the outer side of the top end of the hopper, and a delivery pipe is fixedly connected to the top end of the hopper wall; a bilateral fixed-point spraying unit, the bilateral fixed-point spraying unit is arranged between the hopper and the fertilizer storage barrel, connected to the hopper and connected to the bottom end of the fertilizer storage barrel wall, so as to cooperate with the movement of the hopper to realize synchronous fixed-point fertilization of vegetation on both sides and synchronous reciprocating lifting of the fertilizer storage barrel; an impact stirring and cutting unit, the impact stirring and cutting unit is rotatably connected to the inner side of the fertilizer storage barrel and connected to the bilateral fixed-point spraying unit, so as to cooperate with the bilateral fixed-point spraying unit to realize stirring and cutting of the fertilizer located inside the fertilizer storage barrel; wherein, the bilateral fixed-point spraying unit comprises: an independent multi-control component, a circulating lifting component, a bidirectional movable The variable spraying assembly and the automatic swing assembly, the independent multi-control assembly is fixedly connected to the inner side of the bottom shell and is connected to the impact stirring unit, which is used to drive the impact stirring unit to rotate to achieve stirring of the fertilizer inside the fertilizer storage barrel. The independent multi-control assembly is also connected to the fertilizer storage barrel through a circulating lifting assembly, which is used to cooperate with the bottom shell to support the fertilizer storage barrel, and cooperate with the circulating lifting assembly to achieve reciprocating lifting of the fertilizer storage barrel, and achieve continuous impact of the impact stirring unit on the fertilizer during lifting. The outside of the independent multi-control assembly is symmetrically provided with a two-way variable spraying assembly connected to the bottom shell, the two-way variable spraying assembly is connected to the bottom end wall of the fertilizer storage barrel, which is used to achieve synchronous watering of vegetation on both sides, and cooperate with the bottom shell to achieve adjustment of the watering spacing. The two-way variable spraying assembly is provided with an automatic swing assembly, which is connected to the independent multi-control assembly, and is used to cooperate with the independent multi-control assembly to achieve swing spraying of the two-way variable spraying assembly, thereby completing comprehensive watering of the pit points.

[0007] As a further solution of the present invention: the independent multi-control component includes: an energy supply motor, a crankshaft connecting rod, a push-pull slide, a directional guide rod, a return frame, a conduction plate, a lifting rod and an annular slide. The energy supply motor is fixedly connected to the bottom inner side of the bottom shell, and the output end of the energy supply motor is fixedly connected to the crankshaft connecting rod. The other end of the crankshaft connecting rod passes through the inner side of the fertilizer storage barrel and is connected to the impact stirring unit, which is used to cooperate with the energy supply motor to realize the stirring of the fertilizer by the impact stirring unit. A push-pull slide is provided on the outside of the crankshaft connecting rod, and the push-pull slide is slidably connected to the directional guide rod fixedly connected to the inner side of the bottom shell. A lifting rod is provided between the push-pull slide and the crankshaft connecting rod, and one end of the lifting rod is bent with the crankshaft connecting rod The outer side of the top of the push-pull slide is provided with a return frame which is slidably connected to the inner wall of the bottom shell. A conduction plate is rotatably provided on the return frame, and the other end of the conduction plate is rotatably connected to the push-pull slide for cooperating with the lateral movement of the push-pull slide to realize the longitudinal reciprocating motion of the return frame. The return frame is connected to the circulating lifting assembly for cooperating with the circulating lifting assembly to realize the vibration of the fertilizer storage barrel. An annular slide groove connected to the automatic swing assembly is also provided on the wall of the return frame for cooperating with the movement of the return frame to realize the synchronous drive of the automatic swing assembly.

[0008] As a further solution of the present invention: the circulating lifting assembly includes: a pressure sensing box, an air pressure regulating tube, a lifting control tube, a lifting slide, a control piston and a lifting control groove. The pressure sensing box is arranged on the outer side of the top end of the return frame and is fixedly connected to the bottom shell. Several air pressure regulating tubes fixedly connected to the pressure sensing box are arranged between the pressure sensing box and the return frame. The inner side of the air pressure regulating tube is slidably connected to a pressure regulating member fixedly connected to the return frame, for cooperating with the lifting of the return frame to realize the flow of air inside the pressure sensing box, a lifting slide fixedly connected to the fertilizer storage barrel is arranged on the outer side of the pressure sensing box, the lifting slide is slidably connected to the top shell wall of the bottom shell, a lifting control groove is arranged inside, a lifting control tube is arranged inside the lifting control groove, the lifting control tube is fixedly connected on the outer wall of the inner pipe mouth of the lifting control groove, and a control piston slidably connected to the lifting control groove is arranged. The other end of the lifting control tube is fixedly connected to the pressure sensing box, for cooperating with the air flowing inside the pressure sensing box to drive the lifting slide to move, thereby realizing the lifting of the fertilizer storage barrel.

[0009] As a further solution of the present invention: the bidirectional variable spraying assembly includes: a diverter pipe, a fertilizer pump, a liquid outlet pipe, a liquid injection conduit, an L-shaped support pipe, a rotating nozzle, a support sleeve, a 匚-shaped rack and a telescoping device. The diverter pipe is fixedly connected to the inner side of the bottom shell, and a liquid injection conduit is fixedly connected to the diverter pipe. The other end of the liquid injection conduit is slidably connected to the liquid outlet pipe. The liquid outlet pipe is fixedly connected to the output end of the fertilizer pump. The fertilizer pump is fixedly connected to the outside of the bottom end of the fertilizer storage cylinder, and the input end is connected to the inside of the fertilizer storage cylinder for realizing the transportation of fertilizer liquid. L-shaped support pipes are provided on both sides of the liquid injection conduit. One end of the L-shaped support pipe is rotatably connected to the top pipe wall of the diverter pipe, and the other end is connected to the outside of the bottom shell, and the outside of the pipe mouth is rotated A rotating nozzle is connected, and a spray head is fixedly connected to the rotating nozzle, and is connected to an automatic swing assembly, which is used to cooperate with the fertilizer liquid delivered by the fertilizer pump to complete the swing spraying of the fertilizer. A support sleeve column is fixedly connected to the outside of the L-shaped support tube and is rotatably connected to the top shell wall of the bottom shell. The support sleeve column is also connected to the automatic swing assembly, which is used to cooperate with the bottom shell to support the L-shaped support tube. A rotating gear is fixedly connected to the outside of the support sleeve column, and a 匚-shaped rack is meshingly connected to the outside of the rotating gear. A telescope is fixedly connected between the 匚-shaped rack and the bottom shell, which is used to cooperate with the bottom shell to drive the support sleeve columns on both sides to rotate synchronously, so as to adjust the direction of the spray heads on both sides and complete the regulation of the spray spacing.

[0010] The cam is fixedly provided with a toothed plate on the outside of the L-shaped support tube, and the toothed plate is meshed with the toothed plate to form a rotation of the cam.

[0011] As a further solution of the present invention, the impact stirring and cutting unit includes: a fixed sleeve, a supporting column, a synchronous rod, a stirring rod, a sliding sleeve, a cutting knife and a connecting rod. The supporting column is rotatably connected to the inner side of the fertilizer storage barrel, and a fixed sleeve is slidingly connected to the crankshaft connecting rod. A synchronous rod is symmetrically arranged between the fixed sleeve and the supporting column, and the synchronous rod is fixedly connected to the supporting column and is slidably connected to the barrel wall of the bottom end of the fixed sleeve for realizing synchronous rotation of the fixed sleeve and the supporting column. The support column is symmetrically provided with a stirring rod on the rod wall inside the fertilizer storage barrel, and the stirring rod is fixedly connected to the supporting column for cooperating with the rotation of the supporting column to realize stirring of the fertilizer inside the fertilizer storage barrel, and a sliding sleeve is slidingly connected to the outer side of the stirring rod, and a plurality of cutting knives are fixedly connected between the sliding sleeves. A connecting rod is provided between the sliding sleeve and the fixed sleeve, and one end of the connecting rod is rotatably connected to the sliding sleeve, and the other end is rotatably connected to the fixed sleeve for cooperating with the lifting and lowering of the fertilizer storage barrel to realize the reciprocating motion of the sliding sleeve.

[0012] As a further solution of the present invention: the impact mixing and cutting unit also includes: an impact tube, a pressure control groove and a pressure control piston. The pressure control groove is arranged on the inner side of the support column. The inner side of the pressure control groove is slidingly connected with a pressure control piston fixedly connected to the crankshaft connecting rod. Impact tubes connected to the pressure control groove are provided on both sides of the pressure control piston. The impact tubes are arranged in pairs and fixedly connected to the support column, and are used to cooperate with the lifting and lowering of the pressure control piston to realize the impact on the fertilizer liquid inside the fertilizer storage cylinder.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] When the mobile fertilizer spreader is in operation, the two-way variable spraying assembly adjusts the spreading spacing on both sides, the supporting crawler drives the bottom shell to move between the vegetation on both sides, and drives the equipment to move, and the independent multi-control assembly can drive the impact stirring and cutting unit to stir and cut the fertilizer inside the fertilizer storage barrel to avoid the precipitation and agglomeration of the fertilizer. The independent multi-control assembly can also drive the fertilizer storage barrel to move up and down through the circulating lifting assembly. The vibration of the fertilizer storage barrel can not only improve the stirring effect, but also drive the impact stirring and cutting unit to continuously impact the fertilizer liquid laterally, so that the fertilizer liquid inside the fertilizer storage barrel can be fully and comprehensively stirred. The two-way variable spraying assembly extracts the fertilizer liquid inside the fertilizer storage barrel and simultaneously stirs the fertilizer liquid on both sides. The independent multi-control component can also cooperate with the automatic swing component to drive the two-way variable spraying component to swing and spray, so that the sprayed fertilizer liquid can fall evenly into the pit, ensuring the effectiveness and accuracy of fertilization, and completing the continuous fertilization of vegetation on both sides. This application sets a bilateral fixed-point spraying unit and cooperates with the impact stirring unit to continuously stir the fertilizer located on the inside of the fertilizer storage barrel and perform multiple stirring of the fertilizer, thereby avoiding the precipitation and agglomeration of the fertilizer. It can also flexibly adjust the watering spacing on both sides to ensure the accuracy of watering, improve the applicability of the equipment, and can realize swing spraying at the same time during the watering process, ensuring the comprehensiveness and effectiveness of fertilization, which is beneficial to the growth of vegetation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a mobile fertilizer spreader used for planting in sandy soil.

[0016] Figure 2 A cross-sectional view of a mobile fertilizer spreader used for planting in sandy soil.

[0017] Figure 3 Schematic diagram of the structure of independent multi-control components in a mobile fertilizer spreader used for planting in sandy soil.

[0018] Figure 4 A cross-sectional view of an independent multi-control assembly in a mobile fertilizer spreader used for planting in sandy soil.

[0019] Figure 5 This is a schematic diagram of the structure of the circulating lifting component in a mobile fertilizer spreader used for planting in sandy soil.

[0020] Figure 6 This is a schematic diagram of the structure of a bidirectional variable spraying assembly in a mobile fertilizer spreader used for planting in sandy soil.

[0021] Figure 7 The present invention is a cross-sectional view of a bidirectional variable spray assembly in a mobile fertilizer spreader for planting in sandy soil.

[0022] Figure 8This is a schematic diagram of the structure of a rotating nozzle in a mobile fertilizer spreader used for planting in sandy soil.

[0023] Figure 9 This is a schematic diagram of the structure of the automatic swing assembly in a mobile fertilizer spreader used for planting in sandy soil.

[0024] Figure 10 for Figure 9 Schematic diagram of the enlarged structure at point A in the middle.

[0025] Figure 11 This is a schematic diagram of the structure of the impact mixing and cutting unit in a mobile fertilizer spreader used for planting in sandy soil.

[0026] Figure 12 A cross-sectional view of the impact mixing unit of a mobile fertilizer spreader used for planting in sandy soil.

[0027] In the figure: 1- bottom shell, 2- fertilizer storage cylinder, 3- delivery pipe, 4- support crawler, 5- impact stirring and cutting unit, 6- bilateral fixed-point spraying unit, 7- independent multi-control component, 8- cycle lifting component, 9- two-way variable spraying component, 10- automatic swing component, 11- energy supply motor, 12- crankshaft connecting rod, 13- push-pull slide, 14- directional guide rod, 15- return frame, 16- conduction plate, 17- lifting rod, 18- annular slide, 19- pressure sensing box, 20- air pressure control pipe, 21- pressure regulating part, 22- lifting control pipe, 23- lifting slide, 24- control piston, 25- lifting control groove, 2 6-diversion pipe, 27-fertilizer pump, 28-liquid outlet pipe, 29-liquid injection catheter, 30-L-type support pipe, 31-rotating nozzle, 32-sprinkler head, 33-support sleeve, 34-匚-type rack, 35-expansion device, 36-rotating rack, 37-T-type frame, 38-swing control pipe, 39-synchronous pressure guide, 40-positioning slide, 41-sensing piston, 42-fixed sleeve, 43-support column, 44-synchronous rod, 45-stirring rod, 46-sliding sleeve, 47-cutting knife, 48-connecting rod, 49-impact tube, 50-pressure control groove, 51-pressure control piston, 52-swing gear, 53-regulating slide. DETAILED DESCRIPTION

[0028] The technical solution of this application is further described in detail below in conjunction with specific implementation methods.

[0029] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0030] See also Figure 1 and Figure 2 In one embodiment of the present invention, a mobile fertilizer spreader for planting in sandy soil includes: a bottom shell 1; a support crawler 4, which is symmetrically arranged on the outside of the bottom shell 1 and fixedly connected to the bottom shell 1, for supporting the bottom shell 1 and realizing stable movement of the fertilizer spreader on sandy soil; a fertilizer storage cylinder 2, which is arranged on the outside of the top of the bottom shell 1, and a delivery pipe 3 is fixedly connected to the top cylinder wall; a bilateral fixed-point spraying unit 6, which is arranged between the bottom shell 1 and the fertilizer storage cylinder 2, connected to the bottom shell 1, and connected to the bottom end wall of the fertilizer storage cylinder 2, for cooperating with the movement of the bottom shell 1 to realize synchronous fixed-point fertilization of the vegetation on both sides, and synchronously realize the reciprocating lifting of the fertilizer storage cylinder 2; the impact stirring and cutting unit 5, the impact stirring and cutting unit 5 is rotatably connected and arranged on the inner side of the fertilizer storage cylinder 2, and is connected to the bilateral fixed-point spraying unit 6, for cooperating with the bilateral fixed-point spraying unit 6 to realize stirring and cutting of the fertilizer located inside the fertilizer storage cylinder 2; wherein, the bilateral fixed-point spraying unit 6 includes: an independent multi-control component 7, a circulating lifting component 8, a two-way variable spraying assembly 9 and an automatic swing assembly 10, the independent multi-control assembly 7 is fixedly connected to the inner side of the bottom shell 1, and is connected to the impact stirring unit 5, which is used to drive the impact stirring unit 5 to rotate to achieve the stirring of the fertilizer inside the fertilizer storage cylinder 2. The independent multi-control assembly 7 is also connected to the fertilizer storage cylinder 2 through a circulating lifting assembly 8, which is used to cooperate with the bottom shell 1 to support the fertilizer storage cylinder 2, and cooperate with the circulating lifting assembly 8 to achieve the reciprocating lifting of the fertilizer storage cylinder 2, and realize the continuous impact stirring unit 5 on the fertilizer during the lifting. The independent multi-control component 7 is symmetrically provided with a two-way variable spraying component 9 connected to the bottom shell 1 on the outside. The two-way variable spraying component 9 is connected to the bottom wall of the fertilizer storage cylinder 2 for realizing synchronous watering of the vegetation on both sides and cooperating with the bottom shell 1 to realize the adjustment of the watering spacing. The two-way variable spraying component 9 is provided with an automatic swing component 10, which is connected to the independent multi-control component 7 and is used to cooperate with the independent multi-control component 7 to realize the swing spraying of the two-way variable spraying component 9 to complete the comprehensive watering of the pit points.

[0031] In the embodiment, when the mobile fertilizer applicator is running, the bidirectional variable spraying assembly 9 adjusts the spraying interval on both sides, the support caterpillar belt 4 drives the bottom shell 1 to move between the vegetation on both sides, and drives the equipment to move, the independent multi-control assembly 7 can drive the impact stirring unit 5 to stir and cut the fertilizer inside the fertilizer storage cylinder 2, so as to avoid the precipitation and caking of the fertilizer, the independent multi-control assembly 7 can also drive the fertilizer storage cylinder 2 to reciprocate up and down through the circulating lifting assembly 8, and the vibration of the fertilizer storage cylinder 2 can not only improve the stirring effect, but also drive the impact stirring unit 5 to continuously impact the fertilizer liquid horizontally, so that the fertilizer liquid inside the fertilizer storage cylinder 2 can be fully and comprehensively stirred, the bidirectional variable spraying assembly 9 extracts the fertilizer liquid inside the fertilizer storage cylinder 2 and sprays the vegetation on both sides at the same time, and the independent multi-control assembly 7 can also drive the bidirectional variable spraying assembly 9 to swing and spray in cooperation with the automatic rotary swing assembly 10, so that the sprayed fertilizer liquid can fall into the hole position uniformly, the effectiveness and accuracy of fertilization are ensured, and the continuous fertilization of the vegetation on both sides is completed, the bidirectional fixed-point spraying unit 6 is arranged in the application, which can cooperate with the impact stirring unit 5 to continuously stir the fertilizer inside the fertilizer storage cylinder 2 and can multi-stir the fertilizer, so as to avoid the precipitation and caking of the fertilizer, the spraying interval on both sides can be flexibly adjusted, the accuracy of spraying is ensured, the applicability of the equipment is improved, swinging and spraying can be realized at the same time in the spraying process, the comprehensiveness and effectiveness of fertilization are ensured, and the growth of vegetation is beneficial.

[0032] In one embodiment of the application, please refer to Figure 3 and Figure 4The independent multi-control component 7 includes: an energy supply motor 11, a crankshaft connecting rod 12, a push-pull slide 13, a directional guide rod 14, a return frame 15, a conduction plate 16, a lifting rod 17 and an annular slide 18. The energy supply motor 11 is fixedly connected to the bottom inner side of the bottom shell 1, and the output end of the energy supply motor 11 is fixedly connected to the crankshaft connecting rod 12. The other end of the crankshaft connecting rod 12 passes through the inner side of the fertilizer storage cylinder 2 and is connected to the impact stirring unit 5, which is used to cooperate with the energy supply motor 11 to realize the stirring of the fertilizer by the impact stirring unit 5. A push-pull slide 13 is provided on the outside of the crankshaft connecting rod 12. The push-pull slide 13 is slidably connected to the directional guide rod 14 fixedly connected to the inner side of the bottom shell 1. A lifting rod 17 is provided between the push-pull slide 13 and the crankshaft connecting rod 12. One end of the lifting rod 17 is bent with the crankshaft connecting rod 12 The top of the push-pull slide 13 is rotatably connected, and the other end is rotatably connected to the push-pull slide 13 through a rotating shaft, which is used to cooperate with the rotation of the crankshaft connecting rod 12 to realize the reciprocating motion of the push-pull slide 13 on the directional guide rod 14. A return frame 15 is provided on the outer side of the top of the push-pull slide 13, which is slidably connected to the inner wall of the bottom shell 1. A conduction plate 16 is rotatably connected on the return frame 15, and the other end of the conduction plate 16 is rotatably connected to the push-pull slide 13, which is used to cooperate with the lateral movement of the push-pull slide 13 to realize the longitudinal reciprocating motion of the return frame 15. The return frame 15 is connected to the circulating lifting assembly 8 and is used to cooperate with the circulating lifting assembly 8 to realize the vibration of the fertilizer storage barrel 2. The frame wall of the return frame 15 is also provided with an annular slide groove 18 connected to the automatic swing assembly 10, which is used to cooperate with the movement of the return frame 15 to realize the synchronous drive of the automatic swing assembly 10.

[0033] In this embodiment, the directional guide rod 14 is symmetrically arranged on the inner side of the bottom shell 1 and is fixedly connected to the bottom shell 1. The energy supply motor 11 controls the crankshaft connecting rod 12 to rotate. The crankshaft connecting rod 12 can drive the impact stirring unit 5 to rotate to stir the fertilizer located inside the fertilizer storage cylinder 2. The crankshaft connecting rod 12 can also drive the push-pull slide 13 to reciprocate along the directional guide rod 14 through the lifting rod 17. The push-pull slide 13 drives the return frame 15 to reciprocate up and down along the inner wall of the bottom shell 1 through the conduction plate 16. The return frame 15 can complete the cycle lifting during the lifting process. The driving of the lowering component 8 is achieved by utilizing the circulating lifting component 8 to realize the longitudinal reciprocating motion of the fertilizer storage barrel 2. On the other hand, the return frame 15 can complete the driving of the automatic swing component 10 through the annular slide groove 18, and utilize the automatic swing component 10 to drive the bidirectional variable spraying component 9 to swing and spray. By setting an independent multi-control component 7, not only the driving of the impact stirring and cutting unit 5 can be completed, but also the driving of the circulating lifting component 8 and the automatic swing component 10 can be completed synchronously, which greatly improves the fertilizing effect of the equipment, effectively reduces the difficulty of operating the equipment, and is convenient to use.

[0034] In one embodiment of the present invention, please refer to Figure 5The circulating lifting assembly 8 includes: a pressure sensing box 19, an air pressure regulating tube 20, a lifting control tube 22, a lifting slide 23, a control piston 24 and a lifting control groove 25. The pressure sensing box 19 is arranged on the outside of the top of the return frame 15 and is fixedly connected to the bottom shell 1. A plurality of air pressure regulating tubes 20 fixedly connected to the pressure sensing box 19 are arranged between the pressure sensing box 19 and the return frame 15. A pressure regulating member 21 fixedly connected to the return frame 15 is provided on the inner side of the air pressure regulating tube 20 for coordinating the lifting of the return frame 15 to realize the flow of air inside the pressure sensing box 19. A lifting slide 23 fixedly connected to the fertilizer storage barrel 2 is provided on the outside of the pressure sensing box 19. The lifting slide 23 is slidably connected to the top shell wall of the bottom shell 1, and a lifting control groove 25 is provided on the inside. A lifting control pipe 22 is provided inside the lifting control groove 25. The lifting control pipe 22 is located on the outer wall of the inner pipe mouth of the lifting control groove 25 and is fixedly connected to a control piston 24 slidably connected to the lifting control groove 25. The other end of the lifting control pipe 22 is fixedly connected to the pressure sensing box 19, and is used to cooperate with the air flowing inside the pressure sensing box 19 to drive the lifting slide 23 to move, thereby realizing the lifting and lowering of the fertilizer storage barrel 2.

[0035] In this embodiment, the pressure regulating member 21 includes a first piston slidably connected to the inner side of the air pressure regulating tube 20 and a first push rod fixedly connected to the first piston. The other end of the first push rod is fixedly connected to the return frame 15. During the lifting process, the return frame 15 will drive the first piston to rise and fall synchronously inside the air pressure regulating tube 20 to realize the flow of air inside the pressure sensing box 19. The air inside the pressure sensing box 19 enters the inner side of the lifting control groove 25 along the lifting control tube 22, and cooperates with the control piston 24 to drive the lifting slide 23 to rise and fall along the shell wall of the bottom shell 1. The lifting slide 23 drives the fertilizer storage barrel 2 to move, realizing the vibration of the fertilizer storage barrel 2, so that the impact stirring and cutting unit 5 can stir the fertilizer located inside the fertilizer storage barrel 2 more comprehensively. By setting a circulating lifting component 8, the independent multi-control component 7 can be cooperated with the independent multi-control component 7 to realize the longitudinal reciprocating motion of the fertilizer storage barrel 2, which is beneficial to improving the stirring effect of the equipment on the fertilizer, effectively avoiding fertilizer caking, ensuring the fertilizing effect, and improving the stability of the equipment during use.

[0036] In one embodiment of the present invention, please refer to Figure 6 、 Figure 7 and Figure 8The bidirectional variable spraying assembly 9 includes: a shunt pipe 26, a fertilizer pump 27, a liquid outlet pipe 28, an injection conduit 29, an L-shaped support pipe 30, a rotating nozzle 31, a support sleeve 33, a 匚-shaped rack 34 and a telescoping device 35. The shunt pipe 26 is fixedly connected to the inner side of the bottom shell 1, and a liquid injection conduit 29 is fixedly connected to the shunt pipe 26. The other end of the liquid injection conduit 29 is slidably connected to the liquid outlet pipe 28. The liquid outlet pipe 28 is fixedly connected to the output end of the fertilizer pump 27. The fertilizer pump 27 is fixedly connected to the outside of the bottom end of the fertilizer storage cylinder 2, and the input end is connected to the inside of the fertilizer storage cylinder 2 for realizing the transportation of fertilizer liquid. L-shaped support pipes 30 are provided on both sides of the injection conduit 29. One end of the L-shaped support pipe 30 is rotatably connected to the top pipe wall of the shunt pipe 26, and the other end is connected to the outside of the bottom shell 1, and the outside of the pipe mouth is rotated. A rotating nozzle 31 is connected, and a spray head 32 is fixedly connected to the rotating nozzle 31, and is connected to the automatic swing assembly 10, and is used to cooperate with the fertilizer liquid delivered by the fertilizer pump 27 to complete the swing spraying of the fertilizer. A support sleeve 33 is fixedly connected to the outside of the L-shaped support tube 30 and is rotatably connected to the top shell wall of the bottom shell 1. The support sleeve 33 is also connected to the automatic swing assembly 10, and is used to cooperate with the bottom shell 1 to support the L-shaped support tube 30. A rotating gear is fixedly connected to the outside of the support sleeve 33, and a 匚-shaped rack 34 is meshingly connected to the outside of the rotating gear. A telescoping device 35 is fixedly connected between the 匚-shaped rack 34 and the bottom shell 1, and is used to cooperate with the bottom shell 1 to drive the support sleeves 33 on both sides to rotate synchronously, so as to adjust the directions of the spray heads 32 on both sides and complete the regulation of the spraying distance.

[0037] The cam 35 is connected to the inner wall of the bottom shell 1 at one end and to the cam-shaped rack 34 at the other end. The cam 35 is an electric telescopic rod. The cam 35 can drive the cam-shaped rack 34 to move. The cam-shaped rack 34 cooperates with the rotating gear to realize the rotation of the support sleeve 33. The support sleeve 33 drives the L-shaped support tube 30 to rotate synchronously. The center of the pipe part at the connection between the L-shaped support tube 30 and the support sleeve 33 coincides with the center of the support sleeve 33. The other end of the L-shaped support tube 30 drives the rotating nozzle 31 to rotate, and adjusts the direction of the spray head 32 on the rotating nozzle 31. The distance at which the fertilizer is sprayed from the spray head 32 is certain. By adjusting the direction of the spray head 32, the spraying spacing can be adjusted, so that the equipment can synchronously water the vegetation on both sides of different sites, and the fertilizer pump 27 pumps the fertilizer liquid inside the fertilizer storage cylinder 2. The fertilizer is taken in and enters the inner side of the shunt pipe 26 along the liquid outlet pipe 28 and the injection pipe 29, and then enters the inner side of the corresponding rotating nozzle 31 along the L-shaped support pipe 30 and is sprayed out from the sprinkler head 32. The return frame 15 can drive the automatic swing assembly 10 during the lifting process. The automatic swing assembly 10 can cooperate with the rotating gear to drive the rotating nozzle 31 to rotate to achieve swing spraying, thereby improving the spraying range, so that the fertilizer can be evenly spread into the inner side of the pit point, ensuring the comprehensiveness of fertilization. By setting up a two-way variable spray assembly 9, the vegetation on both sides can be fertilized at the same time, and the spraying spacing can be adjusted according to needs, so that the equipment can position and sprinkle vegetation in different fields, and can also cooperate with the automatic swing assembly 10 and the independent multi-control assembly 7 to realize the reciprocating rotation of the rotating nozzle 31, thereby improving the spraying range of the equipment, so that the fertilizer can be evenly spread into the inner side of the pit point, ensuring the comprehensiveness of fertilization.

[0038] In one embodiment of the present invention, please refer to Figure 9 and Figure 10The automatic swing assembly 10 includes: a rotating rack 36, a T-shaped frame 37, a swing control tube 38, a synchronous pressure guide 39, a positioning slide 40, a regulating slide 53 and a sensing piston 41. The swing control tube 38 is arranged on the outside of the L-shaped support tube 30 and is fixedly connected to the support sleeve 33. The inner side of one end of the swing control tube 38 is slidably connected to the synchronous pressure guide 39, and the outer side of the other end of the synchronous pressure guide 39 is fixedly connected to the positioning slide 40. The positioning slide 40 is slidably connected to the annular slide 18 to achieve synchronous lifting and lowering of the return frame 15 and the synchronous pressure guide 39. The other end of the swing control tube 38 is connected to the regulating slide 5 On the inner side, a control slide 53 is disposed on the outer side of the bottom end of the rotating nozzle 31 and is slidably connected to a T-shaped frame 37 fixedly connected to the outer side of the L-shaped support tube 30. A sensing groove is provided on the inner side. The sensing groove is slidably connected to a sensing piston 41 fixedly connected to the outer side of the swing control tube 38, and is used to cooperate with the lifting and lowering of the synchronous pressure guide 39 to achieve the lateral movement of the control slide 53 on the T-shaped frame 37. A rotating rack 36 is fixedly connected to the outer side of the control slide 53. The rotating rack 36 is meshed with a swing gear 52 fixedly connected to the outer side of the rotating nozzle 31, and is used to cooperate with the movement of the control slide 53 to achieve the reciprocating rotation of the rotating nozzle 31.

[0039] In this embodiment, the synchronous pressure guide 39 includes a second piston slidably connected to the inside of the swing control tube 38 and a second push rod fixedly connected to the second piston. The other end of the second push rod is fixedly connected to the positioning slide 40, and the positioning slide 40 is slidably connected to the inside of the annular slide 18. During the lifting of the return frame 15, the annular slide 18 cooperates with the positioning slide 40 to drive the second piston to rise and fall synchronously inside the swing control tube 38. The second piston drives the air inside the swing control tube 38 to enter the inside of the sensing groove and cooperates with the sensing piston 41 to drive the control slide 53 to reciprocate along the T-frame 37. The control slide 53 drives the rotating nozzle 31 to rotate alternately clockwise and counterclockwise through the rotating rack 36 and the swing gear 52 to complete the swing spraying of the fertilizer. By setting the automatic swing assembly 10, it can cooperate with the independent multi-control assembly 7 to realize swing spraying, thereby improving the spraying range of the equipment, so that the fertilizer can be evenly spread into the inside of the pit point, ensuring comprehensive fertilization.

[0040] In one embodiment of the present invention, please refer to Figure 11 and Figure 12The impact stirring and cutting unit 5 comprises a fixed sleeve 42, a supporting column 43, a synchronous rod 44, a stirring rod 45, a sliding sleeve 46, a cutting knife 47 and a connecting rod 48, the supporting column 43 is rotationally connected and arranged inside the fertilizer storage cylinder 2, the fixed sleeve 42 is slidably connected and arranged inside the fixed sleeve 42, the fixed sleeve 42 is fixedly connected with the connecting rod 12 of the crankshaft, the synchronous rod 44 is symmetrically arranged between the fixed sleeve 42 and the supporting column 43, the synchronous rod 44 is fixedly connected with the supporting column 43 and slidably connected with the bottom end of the fixed sleeve 42, so as to realize the synchronous rotation of the fixed sleeve 42 and the supporting column 43, the stirring rod 45 is symmetrically arranged on the rod wall inside the fertilizer storage cylinder 2 and fixedly connected with the supporting column 43, so as to realize the stirring of the fertilizer inside the fertilizer storage cylinder 2 in cooperation with the rotation of the supporting column 43, the sliding sleeve 46 is slidably connected outside the stirring rod 45, a plurality of cutting knives 47 are fixedly connected between the sliding sleeves 46, and the connecting rod 48 is arranged between the sliding sleeve 46 and the fixed sleeve 42, one end of the connecting rod 48 is rotationally connected with the sliding sleeve 46, and the other end is rotationally connected with the fixed sleeve 42, so as to realize the reciprocating motion of the sliding sleeve 46 in cooperation with the lifting of the fertilizer storage cylinder 2.

[0041] In the embodiment, the cutting knives 47 are fixedly connected on both sides of the sliding sleeve 46, the adjacent sliding sleeves 46 are connected through the cutting knives 47, the crankshaft connecting rod 12 can drive the fixed sleeve 42 to rotate, the fixed sleeve 42 can drive the supporting column 43 to rotate synchronously in cooperation with the synchronous rod 44, the supporting column 43 drives the stirring rod 45 to rotate, so as to stir the fertilizer inside the fertilizer storage cylinder 2, the stirring rod 45 can also drive the cutting knives 47 to rotate synchronously in cooperation with the sliding sleeve 46, so as to crush the fertilizer, effectively avoiding the caking of the fertilizer, and in the lifting process of the fertilizer storage cylinder 2, the fertilizer storage cylinder 2 drives the supporting column 43 to lift synchronously, the height of the fixed sleeve 42 remains unchanged, the fixed sleeve 42 drives the sliding sleeve 46 to reciprocate along the stirring rod 45 in cooperation with the connecting rod 48, further improving the stirring capacity of the equipment, through the arrangement of the impact stirring and cutting unit 5, the fertilizer inside the fertilizer storage cylinder 2 can be continuously stirred, and the fertilizer can be subjected to multiple stirring, so as to avoid the precipitation and caking of the fertilizer, and ensure the effectiveness of fertilization.

[0042] In one embodiment of the present application, please refer to Figure 11 and Figure 12 The impact stirring and cutting unit 5 further comprises an impact pipe 49, a pressure control groove 50 and a pressure control piston 51, the pressure control groove 50 is arranged inside the supporting column 43, the pressure control piston 51 is slidably connected inside the pressure control groove 50 and fixedly connected with the connecting rod 12 of the crankshaft, the impact pipes 49 are arranged on both sides of the pressure control piston 51 and connected with the pressure control groove 50, the impact pipes 49 are fixedly connected with the supporting column 43, so as to realize the impact on the fertilizer liquid inside the fertilizer storage cylinder 2 in cooperation with the lifting of the pressure control piston 51.

[0043] In this embodiment, the fixed sleeve 42 is provided with an opening for the impact tube 49 to pass through, wherein a sealing ring is provided on the outer side of the bottom end of the lowermost opening, and the sealing ring is provided between the fixed sleeve 42 and the support column 43, thereby ensuring the sealing of the equipment during use. When the support column 43 is raised and lowered along with the fertilizer storage cylinder 2, the pressure control piston 51 provided on the crankshaft connecting rod 12 moves up and down inside the pressure control groove 50. When the pressure control piston 51 moves downward, the impact tube 49 located above the pressure control piston 51 extracts the fertilizer liquid, and the impact tube 49 located below the pressure control piston 51 completes the injection of the fertilizer liquid, thereby realizing the rapid flow of the fertilizer liquid inside the fertilizer storage cylinder 2, so that the fertilizer can be fully stirred, thereby greatly improving the stirring efficiency of the equipment.

[0044] The mobile fertilizer spreader for planting in sandy soil is provided with a bilateral fixed-point spraying unit 6, which cooperates with the impact stirring and cutting unit 5 to continuously stir the fertilizer located inside the fertilizer storage barrel 2, and can perform multiple stirring of the fertilizer, thereby avoiding the precipitation and agglomeration of the fertilizer, and can flexibly adjust the watering spacing on both sides to ensure the accuracy of watering and improve the applicability of the equipment, and can simultaneously realize swing spraying during the watering process, thereby ensuring the comprehensiveness and effectiveness of fertilization, which is beneficial to the growth of vegetation, and by providing an independent multi-control component 7, not only the driving of the impact stirring and cutting unit 5 can be completed, but also the driving of the circulating lifting component 8 and the automatic swing component 10 can be synchronously completed, which greatly improves the fertilizing effect of the equipment, effectively reduces the difficulty of operating the equipment, and is convenient to use, and by providing a circulating lifting component 8, the independent multi-control component 7 can be cooperated with the independent multi-control component 7 to realize the longitudinal reciprocating motion of the fertilizer storage barrel 2, which is beneficial to improving the stirring effect of the equipment on the fertilizer, effectively avoiding the agglomeration of the fertilizer, ensuring the fertilizing effect, and improving the stability of the equipment when in use. The two-way variable spraying assembly 9 is provided to fertilize the vegetation on both sides at the same time, and the spraying interval can be adjusted according to the demand, so that the equipment can be positioned to irrigate the vegetation in different sites, and the automatic swing assembly 10 and the independent multi-control assembly 7 can be used to realize the reciprocating rotation of the rotating nozzle 31, thereby improving the spraying range of the equipment, so that the fertilizer can be evenly spread into the inside of the pit, ensuring the comprehensiveness of the fertilization, and by providing the impact stirring unit 5, the inside of the fertilizer storage cylinder 2 can be evenly sprayed. The fertilizer is continuously stirred. When the support column 43 rises and falls with the fertilizer storage barrel 2, the pressure-control piston 51 arranged on the crankshaft connecting rod 12 moves up and down inside the pressure-control groove 50. When the pressure-control piston 51 moves downward, the impact tube 49 above the pressure-control piston 51 extracts the fertilizer liquid, and the impact tube 49 below the pressure-control piston 51 completes the injection of the fertilizer liquid, thereby realizing the rapid flow of the fertilizer liquid inside the fertilizer storage barrel 2, so that the fertilizer can be fully stirred, thereby greatly improving the stirring efficiency of the equipment.

[0045] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A mobile fertilizer applicator for planting in sandy soil, characterized in that: include: bottom shell; Support crawlers, which are symmetrically arranged on the outside of the bottom shell and fixedly connected to the bottom shell, are used to support the bottom shell and realize stable movement of the fertilizer spreader on sandy soil; A fertilizer storage cylinder is arranged on the outer side of the top of the bottom shell, and a feeding pipe is fixedly connected to the top cylinder wall; The bilateral fixed-point spraying unit is arranged between the bottom shell and the fertilizer storage cylinder, is connected to the bottom shell, and is connected to the bottom end wall of the fertilizer storage cylinder, and is used to cooperate with the movement of the bottom shell to achieve synchronous fixed-point fertilization of the vegetation on both sides and synchronously achieve the reciprocating lifting and lowering of the fertilizer storage cylinder; An impact stirring and cutting unit is rotatably connected to the inner side of the fertilizer storage cylinder and is connected to the bilateral fixed-point spraying unit, and is used to cooperate with the bilateral fixed-point spraying unit to achieve stirring and cutting of the fertilizer inside the fertilizer storage cylinder; Wherein, the bilateral fixed-point spraying unit includes: an independent multi-control component, a circulating lifting component, a bidirectional variable spraying component and an automatic swing component. The independent multi-control component is fixedly connected to the inner side of the bottom shell and is connected to the impact stirring unit, which is used to drive the impact stirring unit to rotate to achieve stirring of the fertilizer inside the fertilizer storage barrel. The independent multi-control component is also connected to the fertilizer storage barrel through the circulating lifting component, which is used to cooperate with the bottom shell to support the fertilizer storage barrel and cooperate with the circulating lifting component to achieve reciprocating lifting of the fertilizer storage barrel, and achieve continuous impact of the impact stirring unit on the fertilizer during lifting. The independent multi-control component is symmetrically provided with a bidirectional variable spraying component connected to the bottom shell on the outside, and the bidirectional variable spraying component is connected to the bottom end wall of the fertilizer storage barrel to achieve synchronous watering of vegetation on both sides and cooperate with the bottom shell to adjust the watering spacing. The bidirectional variable spraying component is provided with an automatic swing component, which is connected to the independent multi-control component and is used to cooperate with the independent multi-control component to achieve swing spraying of the bidirectional variable spraying component to complete comprehensive watering of the pit points. The independent multi-control component includes: an energy supply motor, a crankshaft connecting rod, a push-pull slide, a directional guide rod, a return frame, a conduction plate, a lifting rod and an annular slide. The energy supply motor is fixedly connected to the bottom of the inner side of the bottom shell, the output end of the energy supply motor is fixedly connected to the crankshaft connecting rod, the other end of the crankshaft connecting rod passes through the inner side of the fertilizer storage cylinder and is connected to the impact stirring unit for cooperating with the energy supply motor to realize the stirring of the fertilizer by the impact stirring unit. A push-pull slide is provided on the outer side of the crankshaft connecting rod, the push-pull slide is slidably connected to the directional guide rod fixedly connected to the inner side of the bottom shell, a lifting rod is provided between the push-pull slide and the crankshaft connecting rod, and one end of the lifting rod is rotatably connected to the bent part of the crankshaft connecting rod. The other end is rotatably connected with the push-pull slide through a rotating shaft, and is used to cooperate with the rotation of the crankshaft connecting rod to realize the reciprocating motion of the push-pull slide on the directional guide rod. A return frame slidably connected to the inner wall of the bottom shell is provided on the outer side of the top of the push-pull slide, and a conduction plate is rotatably provided on the return frame. The other end of the conduction plate is rotatably connected with the push-pull slide, and is used to cooperate with the lateral movement of the push-pull slide to realize the longitudinal reciprocating motion of the return frame. The return frame is connected to the circulating lifting assembly, and is used to cooperate with the circulating lifting assembly to realize the vibration of the fertilizer storage barrel. An annular slide groove connected to the automatic swing assembly is also provided on the frame wall of the return frame, which is used to cooperate with the movement of the return frame to realize the synchronous drive of the automatic swing assembly; The cam is connected to the support column and the sliding sleeve is fixedly provided with a cutting knife and a connecting rod. The cam is connected to the fixed sleeve and the supporting column and the cam is connected to the fixed sleeve and the supporting column. The cam is fixedly connected with the supporting column and the cam is connected to the fixed sleeve and the supporting column. The cam is fixedly connected with the supporting column and the cam is connected to the fixed sleeve and the supporting column. The cam is fixedly connected with the supporting column and the cam is connected to the fixed sleeve and the supporting column. The cam is fixedly connected with the supporting column and the cam is connected to the fixed sleeve. The cam is used to realize the synchronous rotation of the fixed sleeve and the supporting column. The support column is located on the rod wall inside the fertilizer storage barrel and is symmetrically provided with a stirring rod. The stirring rod is fixedly connected to the supporting column and is used to cooperate with the rotation of the supporting column to realize the stirring of the fertilizer inside the fertilizer storage barrel. The sliding sleeve is provided with a sliding connection on the outer side of the stirring rod. A plurality of cutting knives are fixedly connected between the sliding sleeves. A connecting rod is provided between the sliding sleeve and the fixed sleeve. One end of the connecting rod is rotatably connected to the sliding sleeve The impact mixing and cutting unit also includes: an impact tube, a pressure control groove and a pressure control piston. The pressure control groove is arranged on the inner side of the support column. A pressure control piston fixedly connected to the crankshaft connecting rod is slidingly connected to the inner side of the pressure control groove. Impact tubes connected to the pressure control groove are arranged on both sides of the pressure control piston. The impact tubes are arranged in pairs and fixedly connected to the support column to cooperate with the lifting and lowering of the pressure control piston to realize the impact on the fertilizer liquid inside the fertilizer storage cylinder.

2. The mobile fertilizer applicator for sandy soil planting according to claim 1, characterized in that: The cyclic lifting component includes: a pressure sensing box, a pneumatic control pipe, a lifting control pipe, a lifting slide, a control piston, and a lifting control groove. The pressure sensing box is arranged on the outer side of the top of the loop-shaped frame and is fixedly connected to the bottom shell. A number of pneumatic control pipes fixedly connected to the pressure sensing box are arranged between the pressure sensing box and the loop-shaped frame. A pressure regulating member fixedly connected to the loop-shaped frame is slidably connected inside the pneumatic control pipe, which is used to realize the flow of air inside the pressure sensing box in cooperation with the lifting of the loop-shaped frame. A lifting slide fixedly connected to the fertilizer storage cylinder is arranged on the outer side of the pressure sensing box. The lifting slide is slidably connected to the top shell wall of the bottom shell, and a lifting control groove is arranged inside. A lifting control pipe is arranged inside the lifting control groove. A control piston slidably connected to the lifting control groove is fixedly connected to the outer wall of the pipe orifice inside the lifting control groove of the lifting control pipe. The other end of the lifting control pipe is fixedly connected to the pressure sensing box, which is used to drive the lifting slide to move in cooperation with the air flowing inside the pressure sensing box, so as to realize the lifting of the fertilizer storage cylinder.

3. The mobile fertilizer applicator for sandy soil planting according to claim 2, characterized in that: The bidirectional variable spraying component includes: a shunt pipe, a fertilizer pump, a liquid outlet pipe, a liquid injection conduit, an L-shaped support pipe, a rotating spray pipe, a support sleeve column, a C-shaped rack, and a telescopic device. The shunt pipe is fixedly connected and arranged inside the bottom shell. A liquid injection conduit is fixedly connected to the shunt pipe. The other end of the liquid injection conduit is slidably connected to the liquid outlet pipe. The liquid outlet pipe is fixedly connected to the output end of the fertilizer pump. The fertilizer pump is fixedly connected and arranged on the outer side of the bottom of the fertilizer storage cylinder, and the input end leads to the inside of the fertilizer storage cylinder, which is used to realize the输送 of the fertilizer liquid. L-shaped support pipes are arranged on both sides of the liquid injection conduit. One end of the L-shaped support pipe is rotatably connected to the top pipe wall of the shunt pipe, and the other end leads to the outside of the bottom shell. A rotating spray pipe is rotatably connected to the outside of the pipe orifice. A spray head is fixedly connected to the rotating spray pipe and is connected to the automatic swing component, which is used to complete the swing spraying of the fertilizer in cooperation with the fertilizer liquid输送 by the fertilizer pump. A support sleeve column rotatably connected to the top shell wall of the bottom shell is fixedly connected to the outside of the L-shaped support pipe. The support sleeve column is also connected to the automatic swing component, which is used to support the L-shaped support pipe in cooperation with the bottom shell. A rotating gear is fixedly connected to the outside of the support sleeve column. A C-shaped rack is meshed and connected to the outside of the rotating gear. A telescopic device is fixedly connected between the C-shaped rack and the bottom shell, which is used to drive the two support sleeve columns to rotate synchronously in cooperation with the bottom shell, so as to adjust the orientation of the spray heads on both sides and complete the regulation of the spraying interval.

4. The mobile fertilizer applicator for sandy soil planting according to claim 3, characterized in that: The cam is fixedly provided with a rotating rack on the outside of the regulating slide, and the rotating rack is meshed with the swivel gear fixedly connected to the outer side of the regulating slide, so that the swivel gear can be adjusted to move horizontally on the regulating slide when the regulating slide is moved.

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