Fertilizing device for crop topdressing

Abstract

The invention relates to the technical field of fertilizer application devices, and discloses a fertilizer application device for crop topdressing, which comprises two walking frames arranged in parallel, a top plate connected between the two walking frames, guide sleeves sleeved outside the walking frames, a lifting platform jointly connected among the four guide sleeves, a support frame connected to the top of the lifting platform, and a top plate connected to the top of the support frame. The upper end of the supporting frame is connected with a liquid fertilizer box, the liquid fertilizer box is located below the top plate, an assembling groove is formed in the bottom of the lifting table, a plurality of positioning assemblies are detachably installed in the assembling groove, and a fertilizer fixing box is arranged on the left sides of the positioning assemblies; the agricultural fertilization device is reasonable in structural design, the fertilization position can be correspondingly adjusted according to crop distribution, a fertilization unit can be independently overhauled and replaced, crop fertilization is achieved through multiple means, and the fertilization effect is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizing devices, and in particular to a fertilizing device for topdressing crops. Background Art

[0002] Topdressing refers to the fertilizer applied during the growth period of plants to supplement and regulate plant nutrition. The main purpose of topdressing is to make up for the deficiency of basal fertilizer and meet the nutritional needs of plants in the middle and late stages. Topdressing is applied more flexibly, and symptomatic topdressing should be carried out according to the element deficiency symptoms shown in different growth periods of crops. Nitrogen, potassium and micronutrients are the most common topdressing varieties. Topdressing can be applied to the soil or sprayed. Applying to the soil is likely to cause mechanical damage, while spraying is suitable for emergency nutrient deficiency conditions, which can supply nutrients quickly but the supply is insufficient. Therefore, it is mostly used for the application of trace elements with less demand.

[0003] In the prior art, the commonly used fertilizing method is to directly sprinkle the fertilizer manually on the surface of crops, but this method cannot make the fertilizer play the maximum effect when it takes effect. Since the fertilizer cannot melt and penetrate into the soil in time, it will slowly volatilize. Therefore, we propose a fertilizing device for crops. For this reason, we propose a fertilizing device for topdressing crops. Summary of the Invention

[0004] The purpose of the present invention is to provide a fertilizing device for topdressing crops to overcome the technical problems existing in the prior art.

[0005] To achieve the above technical purpose and reach the above technical effect, the present invention provides the following technical solution:

[0006] A fertilizing device for topdressing crops includes two parallel traveling frames. A top plate is connected between the two traveling frames. A guide sleeve is sleeved outside the traveling frame. A lifting table is commonly connected between the four guide sleeves. A support frame is connected to the top of the lifting table. The upper end of the support frame is connected with a liquid fertilizer tank. The liquid fertilizer tank is located below the top plate. An assembly groove is formed at the bottom of the lifting table. A plurality of positioning components are detachably installed in the assembly groove. A solid fertilizer tank is arranged on the left side of the positioning component. A PLC controller is connected to the outer wall of the front traveling frame.

[0007] Preferably, in a fertilizing device for topdressing crops, a sealing strip is connected to the upper end of the liquid fertilizer tank. A main diversion pipe is communicated with the bottom of the outer wall of the liquid fertilizer tank. A liquid pumping pump is installed at the upper end of the main diversion pipe. A plurality of diversion branch pipes are communicated with the right side of the pipe wall of the main diversion pipe. A manual control valve is installed on the diversion branch pipe. An elastic hose is communicated with the end of the diversion branch pipe. A fertilizing nozzle is communicated with the end of the elastic hose. A stirring motor is connected to the rear end of the liquid fertilizer tank. An output end of the stirring motor is connected to a stirring shaft. A plurality of impellers are equidistantly connected to the outer wall of the stirring shaft. The bottom wall of the liquid fertilizer tank is arranged in an arc surface structure.

[0008] Preferably, in a fertilizing device for topdressing crops, a solar photovoltaic panel is connected to the top of the top plate. The solar photovoltaic panel is connected to a storage battery through a charge and discharge controller. The storage battery is electrically connected to the liquid pumping pump, the stirring motor and the PLC controller.

[0009] Preferably, in a fertilizing device for topdressing crops, the positioning component includes a rectangular block. A travel groove is formed in the upper right side of the rectangular block. A double-headed screw rod is rotatably connected in the travel groove. A hand wheel is connected to the right end of the double-headed screw rod. Nut seats I are symmetrically screwed on the left and right sides of the outer wall of the double-headed screw rod. An L-shaped slider is connected to the top of the nut seat I. Anti-slip bumps are evenly distributed on the horizontal end of the L-shaped slider. Two circular through holes are formed in the upper left side of the rectangular block. An L-shaped rod is connected to the bottom of the rectangular block. A fixed clamp is connected to the horizontal end of the L-shaped rod. The fixed clamp is detachably connected to the fertilizing nozzle.

[0010] Preferably, in a fertilizing device for topdressing crops, slideways are symmetrically formed in the front and rear of the inner wall of the assembly groove. A rough surface matching the anti-slip bumps is arranged on the inner side wall of the slideway.

[0011] Preferably, in a fertilizing device for topdressing crops, the walking frame includes an inverted U-shaped frame. A guide sleeve is movably sleeved on the vertical part of the U-shaped frame. A base shell is connected to the lower end of the U-shaped frame. Moving wheels are installed on the outer wall of the base shell. A vertical lead screw is rotatably connected to the center of the horizontal part of the U-shaped frame. A synchronous pulley is connected to the upper end of the vertical lead screw. A worm gear is connected to the end of the vertical lead screw extending into the base shell. A crank is connected to the outer wall of the front base shell. A worm is connected to the end of the crank extending into the base shell. The worm is meshed with the worm gear. A nut seat II is screwed on the outer wall of the vertical lead screw. A fixed rod is connected between the nut seat II and the guide sleeve. A transmission belt is sleeved between the outer walls of the two synchronous pulleys.

[0012] Preferably, in a fertilizer application device for topdressing crops, the left end of the lifting platform is connected with an extension frame, the center of the top of the extension frame is connected with an electric push rod I, the lower end of the electric push rod I is connected with a strip-shaped pressing plate, the strip-shaped pressing plate is located directly above the solid fertilizer box, a free telescopic rod is connected between the strip-shaped pressing plate and the bottom wall of the extension frame, and the electric push rod I is electrically connected with a storage battery and a PLC controller.

[0013] Preferably, in a fertilizer application device for topdressing crops, a docking plate is connected to the top of the right side wall of the solid fertilizer box, two inserting rods are connected to the bottom of the docking plate, anti-loosening nuts are screwed at one ends of the inserting rods penetrating through the circular through holes, a compression spring is sleeved outside the inserting rods, a feeding hopper is communicated with the upper part of the left side wall of the solid fertilizer box, an inclined square pipe is communicated with the bottom of the right side wall of the solid fertilizer box, a steering motor is connected to the outer wall of the inclined square pipe, a material transfer wheel is connected to the output end of the steering motor, transfer grooves are formed in the circumferential outer side wall of the material transfer wheel, sealing rings are connected to the front and back of the outer wall of the material transfer wheel, and the sealing rings abut against the inner wall of the inclined square pipe.

[0014] Preferably, in a fertilizer application device for topdressing crops, a side support is connected to the bottom of the solid fertilizer box, a soil discharging pipe is communicated with the lower end of the inclined square pipe, an electric push rod II is connected to the top of the inner wall of the side support, a drilling motor is connected to the lower end of the electric push rod II, a spiral drill rod is connected to the bottom output end of the drilling motor, and the electric push rod II, the spiral drill rod and the soil discharging pipe are arranged on the same central axis.

[0015] Preferably, in a fertilizer application device for topdressing crops, a mobile power source is connected to the outer wall of the solid fertilizer box, a contact switch I, a contact switch II and a delay switch are installed on the bottom wall of the docking plate, the contact switch I is electrically connected with the electric push rod II and the mobile power source, the contact switch II is electrically connected with the drilling motor and the mobile power source, and the delay switch is electrically connected with the steering motor and the mobile power source.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The structure of the present invention is reasonably designed, the positioning component is detachably installed, and the fertilizer application nozzles are fixed by fixing clips, so that the distribution of the corresponding fertilizer application nozzles can be adjusted according to the positions of the crops, ensuring that the crops effectively contact the fertilizer and improving the fertilizer application effect of topdressing;

[0018] 2. In the present invention, the height of the guide sleeve and the lifting platform is adjustable. When stirring, the sealing strip at the upper end of the liquid fertilizer tank fits the bottom wall of the top plate, avoiding splashing of the liquid fertilizer and reducing fertilizer waste;

[0019] 3. In the present invention, the positioning component can carry the solid fertilizer box, and the electric push rod II, the drilling motor and the spiral drill rod are used in cooperation to take soil, so that solid fertilizer can be filled into the soil, improving the soil fertility and meeting the production requirements of crops;

[0020] 4. In the present invention, the device carried on the solid fertilizer box can be independently controlled through the contact start switch in cooperation with the mobile power supply, which is convenient for subsequent disassembly, maintenance and replacement.

[0021] To sum up, the present device can adjust the fertilization position corresponding to the distribution of crops, can independently repair and replace the fertilization unit, and realizes crop fertilization by multiple means, effectively improving the fertilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ;

[0024] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ;

[0025] Figure 3 Schematic diagram of the structure of the liquid fertilizer box in the present invention;

[0026] Figure 4 Schematic diagram of the structure of the stirring shaft in the present invention;

[0027] Figure 5 Schematic diagram of the structure of the top plate in the present invention;

[0028] Figure 6 Schematic diagram of the structure of the positioning component in the present invention;

[0029] Figure 7 Schematic diagram of the structure of the walking frame in the present invention;

[0030] Figure 8 Internal structure diagram of the base shell in the present invention;

[0031] Figure 9 Schematic diagram of the structure of the lifting platform in the present invention;

[0032] Figure 10 Schematic diagram of the structure of the solid fertilizer box in the present invention;

[0033] Figure 11 Schematic diagram of the structure of the transfer wheel in the present invention;

[0034] Figure 12 Schematic diagram of the structure of the docking plate in the present invention.

[0035] In the figure: 1, walking frame; 2, top plate; 3, guide sleeve; 4, lifting platform; 5, support frame; 6, liquid fertilizer tank; 7, assembly groove; 8, positioning component; 9, solid fertilizer tank; 10, PLC controller;

[0036] 101, U-shaped frame; 102, base shell; 103, moving wheel; 104, vertical lead screw; 105, synchronous pulley; 106, worm gear; 107, crank; 108, worm; 109, nut seat two; 110, fixed rod; 111, transmission belt;

[0037] 201, solar photovoltaic panel; 202, storage battery; 401, extension frame; 402, electric push rod one;

[0038] 403, strip pressing plate; 404, free telescopic rod;

[0039] 601, sealing strip; 602, diversion main pipe; 603, liquid pumping pump; 604, diversion branch pipe; 605, manual control valve; 606, elastic hose; 607, fertilizer spraying nozzle; 608, stirring motor; 609, stirring shaft; 610, impeller; 701, slideway;

[0040] 801, rectangular block; 802, travel groove; 803, double-headed screw; 804, hand wheel; 805, nut seat one; 806, L-shaped slider; 807, round through hole; 808, L-shaped rod; 809, fixed clamp;

[0041] 901, docking plate; 902, insertion rod; 903, anti-loosening nut; 904, compression spring; 905, feed hopper; 906, rhomboid pipe; 907, steering motor; 908, material transfer wheel; 909, transfer groove; 910, sealing ring;

[0042] 911, side support; 912, soil discharge pipe; 913, electric push rod two; 914, drilling motor; 915, spiral drill rod; 921, mobile power source; 922, contact switch one; 923, contact switch two; 924, delay switch. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] Embodiment 1

[0045] Please refer to Figures 1-12As shown in the figure, this embodiment is a fertilizing device for topdressing crops, including two walking frames 1 arranged in parallel. A top plate 2 is connected between the two walking frames 1. A guide sleeve 3 is sleeved outside the walking frame 1. A lifting platform 4 is commonly connected between the four guide sleeves 3. A support frame 5 is connected to the top of the lifting platform 4. The upper end of the support frame 5 is connected with a liquid fertilizer tank 6. The liquid fertilizer tank 6 is located below the top plate 2. An assembly groove 7 is opened at the bottom of the lifting platform 4. A plurality of positioning components 8 are detachably installed in the assembly groove 7. A solid fertilizer box 9 is arranged on the left side of the positioning component 8. The outer wall of the front walking frame 1 is connected with a PLC controller 10.

[0046] A sealing strip 601 is connected to the upper end of the liquid fertilizer tank 6. When stirring, it fits the bottom wall of the top plate 2 to prevent fertilizer from splashing out. A diversion main pipe 602 is communicated with the bottom of the outer wall of the liquid fertilizer tank 6. A liquid pumping pump 603 is installed at the upper end of the diversion main pipe 602. A plurality of diversion branch pipes 604 are communicated with the right side of the pipe wall of the diversion main pipe 602. A manual control valve 605 is installed on the diversion branch pipe 604. The end of the diversion branch pipe 604 is communicated with an elastic hose 606. The end of the elastic hose 606 is communicated with a fertilizing nozzle 607. A stirring motor 608 is connected to the rear end of the liquid fertilizer tank 6. The output end of the stirring motor 608 is connected with a stirring shaft 609. A plurality of impellers 610 are equidistantly connected to the outer wall of the stirring shaft 609. The bottom wall of the liquid fertilizer tank 6 is arranged in an arc surface structure to ensure the stirring and dispersing effect of the fertilizer.

[0047] A solar photovoltaic panel 201 is connected to the top of the top plate 2. The solar photovoltaic panel 201 is connected with a storage battery 202 through a charge and discharge controller. The storage battery 202 is electrically connected to the liquid pumping pump 603, the stirring motor 608 and the PLC controller 10, which is convenient for supplying energy for the operation of the equipment.

[0048] The specific implementation method of this embodiment is as follows:

[0049] This device absorbs and converts light energy through the solar photovoltaic panel 201, stores it in the storage battery 202 through the charge and discharge controller for the equipment to use, controls the operation of the electrical components by using the PLC controller 10, injects soluble fertilizer and water into the liquid fertilizer tank 6, drives the stirring shaft 609 to rotate by using the stirring motor 608, and the impellers 610 can stir and disperse the soluble fertilizer and water evenly. Drives the whole equipment to move on the ridge by using the walking frame 1. The fertilizing nozzle 607 is located above the crops. The liquid pumping pump 603 is used to suck the liquid fertilizer into the diversion main pipe 602. Open the manual control valve 605 in the corresponding diversion branch pipe 604, and the liquid fertilizer can be sent out through the fertilizing nozzle 607 at the lower end of the elastic hose 606, so as to achieve the effect of fertilizing the crops.

[0050] Embodiment Two

[0051] On the basis of the first embodiment, the positioning component 8 includes a rectangular block 801. A travel groove 802 is formed in the upper right side of the rectangular block 801. A double-headed screw 803 is rotatably connected in the travel groove 802. A handwheel 804 is connected to the right end of the double-headed screw 803. Nut seats 805 are symmetrically screwed on the left and right sides of the outer wall of the double-headed screw 803. An L-shaped slider 806 is connected to the top of the nut seat 805. Anti-slip bumps are evenly distributed on the horizontal ends of the L-shaped slider 806. Two circular through holes 807 are formed in the upper left side of the rectangular block 801. An L-shaped rod 808 is connected to the bottom of the rectangular block 801. A fixed clip 809 is connected to the horizontal end of the L-shaped rod 808. The fixed clip 809 is detachably connected to the fertilizer spraying head 607.

[0052] Sliding grooves 701 are symmetrically formed in the front and rear inner walls of the assembly groove 7. The inner side walls of the sliding grooves 701 are provided with rough surfaces that cooperate with the anti-slip bumps. The friction force increases after contact, which can prevent sliding and achieve the positioning effect.

[0053] The walking frame 1 includes an inverted U-shaped frame 101. The guide sleeve 3 is movably sleeved on the vertical part of the U-shaped frame 101. The lower end of the U-shaped frame 101 is connected to a base shell 102. A moving wheel 103 is installed on the outer wall of the base shell 102. A vertical lead screw 104 is rotatably connected to the center of the horizontal part of the U-shaped frame 101. A synchronous pulley 105 is connected to the upper end of the vertical lead screw 104. A worm gear 106 is connected to the end of the vertical lead screw 104 extending into the base shell 102. A crank 107 is connected to the outer wall of the front base shell 102. A worm 108 is connected to the end of the crank 107 extending into the base shell 102. The worm 108 is meshed with the worm gear 106. A nut seat 109 is screwed on the outer wall of the vertical lead screw 104. A fixed rod 110 is connected between the nut seat 109 and the guide sleeve 3. A transmission belt 111 is sleeved between the outer walls of the two synchronous pulleys 105.

[0054] The specific implementation method of this embodiment is as follows:

[0055] In this embodiment, after the crank 107 rotates, the worm 108 meshes with and drives the worm gear 106. The synchronous pulleys 105 cooperate with the transmission belt 111 to make the two vertical lead screws 104 rotate synchronously. Then, the nut seat 109 drives the fixed rod 110 to rise and fall, and the height of the guide sleeve 3 and the lifting table 4 changes accordingly. When stirring, the liquid fertilizer tank 6 is raised until the sealing strip 601 fits against the bottom wall of the top plate 2 to avoid splashing of the liquid fertilizer;

[0056] Insert the positioning component 8 into the assembly groove 7. Rotate the double-headed screw rod 803 by driving the handwheel 804. The two nut seats 805 move relative to each other along the travel groove 802. The horizontal part of the L-shaped slider 806 can extend into the slideway 701. After the anti-slip bumps at the horizontal end of the L-shaped slider 806 contact the rough surface, positioning is achieved. According to the longitudinal distribution position of the crops, arrange the corresponding number of positioning components 8 in the assembly groove 7. Fix the fertilizer spraying nozzle 607 with the fixing clip 809 so that the fertilizer spraying nozzle 607 is located directly above the crops. Open the corresponding manual control valve 605. After the liquid extraction pump 603 is started, the fertilizer application effect can be guaranteed.

[0057] Embodiment 3

[0058] On the basis of Embodiment 2, the left end of the lifting platform 4 is connected with an extension frame 401. The center of the top of the extension frame 401 is connected with an electric push rod 402. The lower end of the electric push rod 402 is connected with a strip-shaped pressing plate 403. The strip-shaped pressing plate 403 is located directly above the solid fertilizer box 9. A free telescopic rod 404 is connected between the strip-shaped pressing plate 403 and the bottom wall of the extension frame 401. The electric push rod 402 is electrically connected to the storage battery 202 and the PLC controller 10. Use the electric push rod 402 to control the height of the strip-shaped pressing plate 403, and then control the height of the solid fertilizer box 9.

[0059] The top of the right side wall of the solid fertilizer box 9 is connected with a docking plate 901. The bottom of the docking plate 901 is connected with two insertion rods 902. The end of the insertion rod 902 passing through the circular through hole 807 is screwed with an anti-loosening nut 903. A compression spring 904 is sleeved outside the insertion rod 902. The upper part of the left side wall of the solid fertilizer box 9 is communicated with a feeding hopper 905. The bottom of the right side wall of the solid fertilizer box 9 is communicated with an inclined square pipe 906. A steering motor 907 is connected to the outer wall of the inclined square pipe 906. The output end of the steering motor 907 is connected with a material transfer wheel 908. A transfer groove 909 is formed on the circumferential outer side wall of the material transfer wheel 908. Sealing rings 910 are connected to the front and rear of the outer wall of the material transfer wheel 908. The sealing rings 910 abut against the inner wall of the inclined square pipe 906. After the material transfer wheel 908 rotates, the solid fertilizer can be discharged along the inclined square pipe 906.

[0060] The bottom of the solid fertilizer box 9 is connected with a side support 911. The lower end of the inclined square pipe 906 is communicated with a soil discharging pipe 912. The top of the inner wall of the side support 911 is connected with an electric push rod 913. The lower end of the electric push rod 913 is connected with a drilling motor 914. The bottom output end of the drilling motor 914 is connected with a spiral drill rod 915. The electric push rod 913, the spiral drill rod 915 and the soil discharging pipe 912 are arranged on the same central axis. Use the spiral drill rod 915 to drill soil for taking soil, which is convenient for injecting solid fertilizer to improve the fertilizer application effect.

[0061] A mobile power source 921 is connected to the outer wall of the solid fertilizer box 9. A first contact switch 922, a second contact switch 923 and a delay switch 924 are installed on the bottom wall of the docking plate 901. The first contact switch 922 is electrically connected to the second electric push rod 913 and the mobile power source 921. The second contact switch 923 is electrically connected to the drilling motor 914 and the mobile power source 921. The delay switch 924 is electrically connected to the steering motor 907 and the mobile power source 921. The devices carried by the solid fertilizer box 9 are started by switch contact and are independent of the PLC controller 10, which is convenient for disassembly and replacement.

[0062] The specific implementation mode of this embodiment is as follows:

[0063] In this embodiment, when it is necessary to add base fertilizer or fill in solid fertilizer into the crop cultivation soil, the solid fertilizer box 9 is carried on the positioning assembly 8. The insertion rod 902 is inserted into the round through hole 807. An anti-loosening nut 903 is installed at the lower end of the insertion rod 902. The docking plate 901 is elastically reset by using the compression spring 904. The height of the strip-shaped pressing plate 403 is controlled by the first electric push rod 402. After the solid fertilizer box 9 is pressed down, the soil discharge pipe 912 contacts the soil. The bottom wall of the docking plate 901 contacts the rectangular block 801, thereby starting the first contact switch 922, the second contact switch 923 and the delay switch 924. After the second electric push rod 913 extends, the spiral drill rod 915 is inserted into the soil. The drilling motor 914 drives the spiral drill rod 915 to rotate, and the soil can be sent out along the soil discharge pipe 912. After the second electric push rod 913 retracts, the spiral drill rod 915 moves out of the soil discharge pipe 912. The steering motor 907 drives the material transfer wheel 908 to rotate. After the position of the transfer groove 909 changes, the fertilizer is transferred. The fertilizer falls along the inclined square pipe 906 and enters the soil discharge pipe 912, and then flows into the dug hole, and the fertilization operation of the solid fertilizer can be completed.

[0064] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] The above-disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation manners described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A fertilizing device for topdressing crops, comprising two parallel traveling frames (1), characterized in that: A top plate (2) is connected between the two walking frames (1), a guide sleeve (3) is provided on the outside of the walking frame (1), a lifting platform (4) is commonly connected between the four guide sleeves (3), a support frame (5) is connected to the top of the lifting platform (4), a liquid fertilizer box (6) is connected to the upper end of the support frame (5), and the liquid fertilizer box (6) is located below the top plate (2). An assembly groove (7) is provided at the bottom of the lifting platform (4), and a plurality of positioning components (8) are detachably installed in the assembly groove (7). A solid fertilizer box (9) is provided on the left side of the positioning component (8), and a PLC controller (10) is connected to the outer wall of the front walking frame (1).

2. A fertilizing device for topdressing crops according to claim 1, characterized in that: The upper end of the liquid fertilizer tank (6) is connected to a sealing strip (601), the bottom of the outer wall of the liquid fertilizer tank (6) is connected to a flow guide pipe (602), the upper end of the flow guide pipe (602) is equipped with a liquid pump (603), the right side of the pipe wall of the flow guide pipe (602) is connected to a plurality of drainage branch pipes (604), the drainage branch pipe (604) is equipped with a manual valve (605), the end of the drainage branch pipe (604) is connected to an elastic hose (606), the end of the elastic hose (606) is connected to a fertilizer nozzle (607), the rear end of the liquid fertilizer tank (6) is connected to a stirring motor (608), the output end of the stirring motor (608) is connected to a stirring shaft (609), the outer wall of the stirring shaft (609) is equidistantly connected to a plurality of impellers (610), and the bottom wall of the liquid fertilizer tank (6) is arranged in an arc surface structure.

3. A fertilizing device for topdressing crops according to claim 2, characterized in that: The top of the top plate (2) is connected to a solar photovoltaic panel (201), the solar photovoltaic panel (201) is connected to a storage battery (202) via a charge and discharge controller, and the storage battery (202) is electrically connected to a liquid pump (603), a stirring motor (608) and a PLC controller (10).

4. A fertilizing device for topdressing crops according to claim 2, characterized in that: The positioning assembly (8) comprises a rectangular block (801), a travel groove (802) is provided on the right side of the top of the rectangular block (801), a double-headed screw (803) is rotatably connected in the travel groove (802), a hand wheel (804) is connected to the right end of the double-headed screw (803), nut seats (805) are symmetrically screwed on the left and right sides of the outer wall of the double-headed screw (803), an L-shaped slider (806) is connected to the top of the nut seat (805), and the horizontal ends of the L-shaped slider (806) are evenly distributed with anti-slip convex points, two round through holes (807) are provided on the left side of the top of the rectangular block (801), an L-shaped rod (808) is connected to the bottom of the rectangular block (801), and a fixing clamp (809) is connected to the horizontal end of the L-shaped rod (808), and the fixing clamp (809) is detachably connected to the fertilizer nozzle (607).

5. A fertilizing device for topdressing crops according to claim 4, characterized in that: The inner wall of the assembly groove (7) is provided with slideways (701) symmetrically in front and back, and the inner side wall of the slideway (701) is provided with a rough surface matching the anti-slip convex point.

6. A fertilizing device for topdressing crops according to claim 1, characterized in that: The walking frame (1) comprises an inverted U-shaped frame (101), the guide sleeve (3) is movably sleeved on the vertical part of the U-shaped frame (101), the lower end of the U-shaped frame (101) is connected to a base shell (102), the outer wall of the base shell (102) is provided with a moving wheel (103), the horizontal center of the U-shaped frame (101) is rotatably connected to a vertical screw rod (104), the upper end of the vertical screw rod (104) is connected to a synchronous wheel (105), and one end of the vertical screw rod (104) extending into the base shell (102) is connected to A worm wheel (106) is provided, the outer wall of the front base shell (102) is connected to a crank handle (107), one end of the crank handle (107) extending into the base shell (102) is connected to a worm (108), the worm (108) is meshedly connected to the worm wheel (106), the outer wall of the vertical screw rod (104) is threadedly connected to a nut seat 2 (109), a fixing rod (110) is connected between the nut seat 2 (109) and the guide sleeve (3), and a transmission belt (111) is sleeved between the outer walls of the two synchronous wheels (105).

7. A fertilizing device for topdressing crops according to claim 3, characterized in that: The left end of the lifting platform (4) is connected to an extension frame (401), the top center of the extension frame (401) is connected to an electric push rod (402), the lower end of the electric push rod (402) is connected to a strip pressure plate (403), the strip pressure plate (403) is located directly above the fertilizer box (9), a free telescopic rod (404) is connected between the strip pressure plate (403) and the bottom wall of the extension frame (401), and the electric push rod (402) is electrically connected to a battery (202) and a PLC controller (10).

8. A fertilizing device for topdressing crops according to claim 4, characterized in that: The top of the right side wall of the solid fertilizer box (9) is connected to a docking plate (901), and the bottom of the docking plate (901) is connected to two insertion rods (902). One end of the insertion rod (902) passing through the round through hole (807) is screwed with an anti-slip nut (903), and the outside of the insertion rod (902) is sleeved with a compression spring (904). The upper part of the left side wall of the solid fertilizer box (9) is connected to a feed hopper (905), and the bottom of the right side wall of the solid fertilizer box (9) is connected to an oblique square tube (906). The outer wall of the oblique square tube (906) is connected to a steering motor (907), and the output end of the steering motor (907) is connected to a material transfer wheel (908). The circumferential outer wall of the material transfer wheel (908) is provided with a transfer groove (909). The outer wall of the material transfer wheel (908) is connected to a sealing ring (910) at the front and rear, and the sealing ring (910) abuts against the inner wall of the oblique square tube (906).

9. A fertilizing device for topdressing crops according to claim 8, characterized in that: The bottom of the solid fertilizer box (9) is connected to a side bracket (911), the lower end of the oblique square tube (906) is connected to a soil discharge pipe (912), the top of the inner wall of the side bracket (911) is connected to an electric push rod 2 (913), the lower end of the electric push rod 2 (913) is connected to a drilling motor (914), the bottom output end of the drilling motor (914) is connected to an auger rod (915), and the electric push rod 2 (913), the auger rod (915) and the soil discharge pipe (912) are arranged coaxially.

10. A fertilizing device for topdressing crops according to claim 9, characterized in that: The outer wall of the fertilizer box (9) is connected to a mobile power source (921); the bottom wall of the docking plate (901) is installed with a contact switch 1 (922), a contact switch 2 (923) and a delay switch (924); the contact switch 1 (922) is electrically connected to the electric push rod 2 (913) and the mobile power source (921); the contact switch 2 (923) is electrically connected to the drilling motor (914) and the mobile power source (921); and the delay switch (924) is electrically connected to the steering motor (907) and the mobile power source (921).

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