A fertilizer application device for potato planting
Patent Information
- Application Number
- CN202522067253.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-25
AI Technical Summary
[0004]为了解决现有技术中，由于管料较长、较重，安装过程中会出现对正困难，通常需要多次调整刀具和管料位置，造成加工效率低，且在长期使用过程中，滚轮会出现磨损、损坏或失效，无法进行单独更换或修复的技术问题，本申请提供一种马铃薯种植用施肥装置
1、通过设置输送机构，对肥料进行定量输送，肥料罐通过卡箍与框架固定安装，对其固定的同时便于拆卸，框架上设置有肩带和腰带，肩带用于将装置的重量均匀分布在双肩上，腰带可将装置的部分重量从肩膀转移到腰部和髋部，减轻肩部压力，电机驱动螺旋输送杆旋转，以便将肥料从肥料罐通过软管定量输送至开沟刀的通槽，最后通过导向槽落入坑中，从而确保施肥均匀、可控，解决了现有技术中，肥料依靠重力或人工挤压进入管道，导致施肥量难以控制，施肥不均匀会影响马铃薯的生长，出现局部施肥过量或不足的情况，从而降低产量和品质的技术问题。
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Figure CN224875461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fertilization technology, and in particular to a fertilization device for potato planting. Background Technology
[0002] Potatoes are an important crop widely cultivated globally. Their tubers are rich in starch, protein, and various minerals, and have multiple uses, including serving as both food and vegetable, and as an industrial raw material. They occupy an important position in agricultural production. To achieve high quality and high yield, fertilization management is crucial during potato cultivation. Currently, some potato cultivation still uses traditional manual fertilization methods. Workers carry fertilizer bags on their backs, which are connected to the grooves of shovels via pipes. When fertilizing, workers dig holes with shovels, and the fertilizer flows through the pipes into the grooves of the shovels, finally falling into the holes to complete the fertilization process.
[0003] In existing technologies, fertilizer is introduced into the pipes by gravity or manual extrusion, making it difficult to control the amount of fertilizer applied. Uneven fertilization can affect potato growth, resulting in localized over- or under-fertilization, which reduces yield and quality. Furthermore, the handle length of the shovel is not adjustable, making it unsuitable for workers of different heights or with different operating habits, leading to fatigue during prolonged operation and affecting work efficiency. Therefore, a fertilization device for potato planting is proposed to solve the above-mentioned problems. Utility Model Content
[0004] In order to solve the technical problems in the prior art, which are that due to the long and heavy pipe, it is difficult to align during installation, and the position of the cutter and pipe usually needs to be adjusted many times, resulting in low processing efficiency, and the rollers will wear, be damaged or fail during long-term use, and cannot be replaced or repaired individually, this application provides a fertilization device for potato planting.
[0005] This utility model proposes a fertilizer application device for potato planting, including a frame and a trenching knife. The frame is equipped with a conveying mechanism, which includes a spiral conveying rod. The rotation of the spiral conveying rod quantitatively conveys fertilizer.
[0006] The inner wall of the grooving cutter is provided with an adjustment mechanism, which includes a handle. The extension and retraction of the handle adjusts the overall length of the grooving cutter.
[0007] Preferably, the conveying mechanism further includes a fertilizer tank with a feed pipe, the fertilizer tank being fixedly installed on the inner side wall of the frame by clamps, and the right side surface of the frame being provided with adjustable shoulder straps and waist belts respectively.
[0008] Through the above technical solution, the fertilizer tank is fixedly installed to the frame with clamps, which facilitates disassembly while securing it. The fertilizer tank is used to store fertilizer, and fertilizer is replenished through the feed pipe. When fertilizer replenishment is not needed, it can be sealed with a sealing plug or plastic bag. The fertilizer tank can be made of high-density polyethylene, which is lightweight, corrosion-resistant, and impact-resistant, making it easy to carry manually. The clamps can be made of reinforced nylon, which has the characteristics of high strength, wear resistance, and aging resistance. Shoulder straps and waist belts are set on the frame. The shoulder straps are used to distribute the weight of the device evenly on the shoulders, and the waist belt can transfer part of the weight of the device from the shoulders to the waist and hips, reducing shoulder pressure. The length of the shoulder straps and waist belts can be adjusted as needed. The material can be high-density nylon webbing, and the inside is filled with sponge to increase comfort.
[0009] Preferably, a motor is fixedly installed inside the lid of the fertilizer tank, and the output shaft of the motor is rotatably connected to the groove inside the lid of the fertilizer tank through a bearing.
[0010] The fertilizer tank, as described above, consists of a tank body with a feed pipe and a lid, which are bolted together for easy disassembly and cleaning. The lid is fixed to the motor, and the motor's output shaft is rotatably connected to the lid via bearings, ensuring the stability of the motor's rotation. A DC geared motor, such as the JGA25-370, can be used; it features high output torque, adjustable speed, small size, and light weight, making it suitable for small fertilization devices. It can be powered by a battery in the battery compartment on the lid. To adjust the motor speed, a pulse width modulation (PWM) speed control module can be installed on the lid or on the other side of the handle. The motor speed is controlled by adjusting the duty cycle. The module's input is connected to the battery, and its output is connected to the motor. Speed adjustment is achieved via a knob or wireless signal to adapt to different fertilization needs, such as soil conditions, and to achieve precise adjustment of the fertilizer application rate.
[0011] Preferably, the output shaft of the motor is fixedly installed to one end of the screw conveyor rod, and the screw conveyor rod is rotatably connected to the lower surface of the fertilizer tank cover via a bearing.
[0012] The above technical solution involves fixing the output shaft of a motor to a screw conveyor, driving its rotation. The screw conveyor is rotatably connected to the lid of the fertilizer tank via bearings, ensuring the stability of the screw conveyor's rotation. This allows fertilizer to be quantitatively conveyed from the fertilizer tank through a hose to the channel of the trenching knife, and finally falls into the pit through a guide trough, thus ensuring uniform and controllable fertilization. The screw conveyor can be made of 304 stainless steel, which has the characteristics of corrosion resistance, high strength, and easy cleaning, making it suitable for long-term contact with fertilizer.
[0013] Preferably, the adjusting mechanism further includes a through groove, which is formed inside the bottom end of the trenching knife. The bottom outlet of the fertilizer tank is fixedly connected to the outer surface of the through groove via a hose, and the bottom end of the through groove is fixedly connected to the bottom guide groove of the trenching knife.
[0014] Through the above technical solution, the trough is connected to the fertilizer tank outlet and the trenching knife guide groove through a hose to ensure that the fertilizer is smoothly delivered to the fertilization point. The hose can be made of PVC hose, which has good flexibility, corrosion resistance and low cost. Quick connectors, such as clamp connectors, are added at the connection between the hose and the trough and the connection between the fertilizer tank outlet to facilitate the disassembly and replacement of the hose.
[0015] Preferably, the handle is slidably inserted into the inner wall of the groove of the trenching cutter, a star-head bolt is threaded onto the arc surface of the top end of the trenching cutter, one end of the star-head bolt is rotatably connected to a fixing block with a rubber layer, the fixing block is slidably connected to the inner wall of the top groove of the trenching cutter, the rubber layer of the fixing block is in contact with the arc surface of the handle, and a switch is provided on one side of the top end of the handle, the switch being wirelessly connected to the motor.
[0016] The above technical solution utilizes a sliding connection between the handle and the trenching cutter, fixing them without hindering their movement. A star-head bolt connects the handle to the trenching cutter via a threaded connection, fixing them without affecting their rotation. A fixing block is rotatably connected to the star-head bolt; as the star-head bolt rotates, it moves the fixing block without affecting it. The fixing block slides against the trenching cutter, limiting its movement and ensuring stability. Rotating the star-head bolt pushes the fixing block, thus fixing or loosening the handle. The trenching cutter can be made of stainless steel, which has high strength, wear resistance, and excellent corrosion resistance, making it particularly suitable for damp field environments with soil friction. The handle and fixing block... All components can be made of aluminum alloy, which is lightweight and high-strength. The surface is anodized, which improves wear resistance and corrosion resistance. The bolts are made of carbon steel and are treated with anti-rust treatment, such as galvanizing. The surface of the fixing block is covered with a rubber layer, which increases friction and prevents the handle from slipping, making operation convenient and stable. A switch is set on the handle and is wirelessly connected to the motor. The switch model can be a wireless remote control switch, such as the RF-433MHz wireless control module, which is small in size, fast in response, and easy to operate, making it suitable for complex field environments. The wireless communication method uses radio frequency communication technology at a frequency of 433MHz to send control commands via radio frequency signals. The motor is equipped with an RF receiver module to realize wireless start and stop control.
[0017] The beneficial effects of this utility model are as follows: 1. By setting up a conveying mechanism, fertilizer is quantitatively conveyed. The fertilizer tank is fixed to the frame with clamps, which facilitates disassembly while securing it. The frame is equipped with shoulder straps and waist belts. The shoulder straps distribute the weight of the device evenly on the shoulders, while the waist belts transfer some of the weight from the shoulders to the waist and hips, reducing shoulder pressure. The motor drives the spiral conveyor rod to rotate, so that the fertilizer is quantitatively conveyed from the fertilizer tank through the hose to the groove of the trenching knife, and finally falls into the pit through the guide trough. This ensures uniform and controllable fertilization, solving the technical problems in the existing technology where fertilizer relies on gravity or manual squeezing to enter the pipeline, resulting in difficulty in controlling the amount of fertilizer applied. Uneven fertilization will affect potato growth, and there will be local over- or under-fertilization, thus reducing yield and quality.
[0018] 2. The overall length of the trenching blade can be adjusted by setting an adjustment mechanism. The trough is connected to the fertilizer tank outlet and the trenching blade guide groove through a hose to ensure that the fertilizer is smoothly delivered to the fertilization point. Rotating the star head bolt pushes the fixing block to fix or loosen the adjusted handle. The handle is equipped with a switch that is wirelessly connected to the motor. The switch model can be a wireless remote control switch, such as the RF-433MHz wireless control module, which is small in size, fast in response, and easy to operate, suitable for complex field environments. The wireless communication method adopts radio frequency communication technology with a frequency of 433MHz to send control commands through radio frequency signals. The motor is equipped with an RF receiver module to realize wireless start and stop control. This solves the technical problem in the existing technology that the length of the shovel handle is not adjustable, which cannot adapt to workers of different heights or operating habits, leading to fatigue during long-term operation and affecting work efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a fertilization device for potato planting proposed in this utility model; Figure 2 A perspective view of the shoulder strap structure of a fertilizer applicator for potato planting proposed in this utility model; Figure 3 A perspective view of the motor structure of a fertilizer applicator for potato planting proposed in this utility model; Figure 4 A perspective view of the handle structure of a fertilizer applicator for potato planting proposed in this utility model; Figure 5 This is a perspective view of the switch structure of a fertilizer application device for potato planting proposed in this utility model.
[0020] In the diagram: 1. Frame; 11. Trenching cutter; 2. Fertilizer tank; 21. Shoulder strap; 22. Waist belt; 3. Motor; 4. Screw conveyor rod; 5. Through groove; 6. Handle; 61. Star head bolt; 62. Fixing block; 63. Switch. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figures 1-5 A fertilizer application device for potato planting includes a frame 1 and a trenching knife 11. The frame 1 is equipped with a conveying mechanism, which includes a spiral conveying rod 4. The rotation of the spiral conveying rod 4 conveys fertilizer in a quantitative manner.
[0023] To distribute the weight of the device evenly on the shoulders, the conveying mechanism also includes a fertilizer tank 2 with a feed pipe. The fertilizer tank 2 is fixedly installed on the inner wall of the frame 1 by clamps. Adjustable shoulder straps 21 and waist belts 22 are respectively provided on the right side surface of the frame 1. The fertilizer tank 2 is fixedly installed to the frame 1 by clamps, which facilitates both fixation and disassembly. The fertilizer tank 2 is used to store fertilizer and is replenished through the feed pipe. When no replenishment is needed, it can be sealed with a sealing plug or plastic bag. The fertilizer tank 2 can be made of high-density polyethylene. It is lightweight, corrosion-resistant, and impact-resistant, making it easy to carry manually. The clamp material can be made of reinforced nylon, which has the characteristics of high strength, wear resistance, and aging resistance. The frame 1 is equipped with shoulder straps 21 and waist belts 22. The shoulder straps 21 are used to distribute the weight of the device evenly on the shoulders, and the waist belts 22 can transfer part of the weight of the device from the shoulders to the waist and hips, reducing shoulder pressure. The length of the shoulder straps 21 and waist belts 22 can be adjusted as needed. The material can be high-density nylon webbing, with sponge filling inside to increase comfort.
[0024] To ensure the stability of the output shaft rotation of motor 3, motor 3 is fixedly installed inside the lid of fertilizer tank 2. The output shaft of motor 3 is rotatably connected to the inner groove of the lid of fertilizer tank 2 through bearings. Fertilizer tank 2 consists of a tank body with a feed pipe and a lid, which are fixedly installed with bolts for easy disassembly and cleaning of the interior. The lid is fixedly installed to motor 3, ensuring the stability of the output shaft rotation of motor 3. The motor 3 can be a DC geared motor, such as model JGA25-370, which has high output torque, adjustable speed, small size, and light weight, making it suitable for small fertilization devices. It can be powered by a battery in the battery slot on the lid. If it is necessary to adjust the speed of motor 3, a pulse width modulation speed control module can be set on the lid or on the other side of the handle 6. The speed of motor 3 is controlled by adjusting the duty cycle. The input end of the control module is connected to the battery, and the output end is connected to motor 3. Speed adjustment is achieved by adjusting the knob or wireless signal to adapt to different fertilization needs, such as soil conditions, and to achieve precise adjustment of fertilizer application.
[0025] To ensure the stability of the rotation of the screw conveyor 4, the output shaft of the motor 3 is fixedly installed to one end of the screw conveyor 4. The screw conveyor 4 is rotatably connected to the lower surface of the lid of the fertilizer tank 2 through a bearing. The output shaft of the motor 3 is fixedly installed to drive the screw conveyor 4 to rotate. The screw conveyor 4 is rotatably connected to the lid of the fertilizer tank 2 through a bearing to ensure the stability of the rotation of the screw conveyor 4. This allows the fertilizer to be quantitatively conveyed from the fertilizer tank 2 through the hose to the through groove 5 of the trenching knife 11, and finally falls into the pit through the guide groove, thereby ensuring uniform and controllable fertilization. The screw conveyor 4 can be made of 304 stainless steel, which has the characteristics of corrosion resistance, high strength, and easy cleaning, and is suitable for long-term contact with fertilizer.
[0026] By setting up a conveying mechanism, fertilizer is quantitatively conveyed. The fertilizer tank 2 is fixedly installed to the frame 1 with clamps, which facilitates disassembly while fixing it. The frame 1 is equipped with shoulder straps 21 and waist belts 22. The shoulder straps 21 are used to distribute the weight of the device evenly on the shoulders, and the waist belts 22 can transfer part of the weight of the device from the shoulders to the waist and hips, reducing shoulder pressure. The motor 3 drives the spiral conveying rod 4 to rotate so that the fertilizer is quantitatively conveyed from the fertilizer tank 2 through the hose to the through groove 5 of the trenching knife 11, and finally falls into the pit through the guide groove. This ensures uniform and controllable fertilization, and solves the technical problem in the existing technology where fertilizer relies on gravity or manual squeezing to enter the pipeline, which makes it difficult to control the amount of fertilizer applied. Uneven fertilization will affect the growth of potatoes and cause local over- or under-fertilization, thereby reducing yield and quality.
[0027] In order to adjust the overall length of the trenching cutter 11, an adjustment mechanism is provided on the inner wall of the trenching cutter 11. The adjustment mechanism includes a handle 6, and the extension and retraction of the handle 6 adjusts the overall length of the trenching cutter 11.
[0028] To ensure the fertilizer is delivered smoothly to the application point, the adjustment mechanism also includes a channel 5, which is located inside the bottom of the trenching knife 11. The bottom outlet of the fertilizer tank 2 is fixedly connected to the outer surface of the channel 5 via a hose. The bottom of the channel 5 is fixedly connected to the bottom guide groove of the trenching knife 11. The channel 5 connects the outlet of the fertilizer tank 2 and the guide groove of the trenching knife 11 via a hose, ensuring the fertilizer is delivered smoothly to the application point. The hose can be made of PVC hose, which is flexible, corrosion-resistant, and low in cost. Quick connectors, such as clamp connectors, are added at the connection between the hose and the channel 5 and at the connection between the outlet of the fertilizer tank 2, to facilitate the disassembly and replacement of the hose.
[0029] To fix or release the handle 6, it is slidably inserted into the inner wall of the groove of the trenching cutter 11. A star-head bolt 61 is threaded onto the curved surface of the top of the trenching cutter 11. One end of the star-head bolt 61 is rotatably connected to a fixing block 62 with a rubber layer. The fixing block 62 is slidably connected to the inner wall of the groove at the top of the trenching cutter 11, and the rubber layer of the fixing block 62 contacts the curved surface of the handle 6. A switch 63 is located on one side of the top of the handle 6, and the switch 63 is wirelessly connected to the motor 3. The handle 6 is slidably inserted into the trenching cutter 11, fixing it without affecting its movement. The star-head bolt 61 is threaded into the trenching cutter 11, fixing it without affecting its rotational movement. The fixing block 62 is rotatably connected to the star-head bolt 61. When the star-head bolt 61 rotates, it drives the fixing block 62 to move, but its rotation does not affect the fixing block 62. The fixing block 62 is slidably connected to the trenching cutter 11, limiting its movement and ensuring its stability. Thus, by rotating the star-head bolt... Bolt 61 pushes the fixing block 62 to fix or loosen the handle 6. The trenching knife 11 can be made of stainless steel, which has high strength, wear resistance and excellent corrosion resistance, making it particularly suitable for wet field environments with soil friction. Both the handle 6 and the fixing block 62 can be made of aluminum alloy, which is lightweight and high-strength. After anodizing, the wear resistance and corrosion resistance are improved. The bolts are made of carbon steel and are treated with anti-rust treatment, such as galvanizing. The surface of the fixing block 62 is covered with a rubber layer, which increases friction and prevents the handle 6 from slipping, making operation convenient and stable. A switch 63 is set on the handle 6 and is wirelessly connected to the motor 3. The switch 63 model can be a wireless remote control switch 63, such as an RF-433MHz wireless control module, which is small in size, fast in response and easy to operate, suitable for complex field environments. The wireless communication method adopts radio frequency communication technology with a frequency of 433MHz, so as to send control commands through radio frequency signals. The motor 3 is equipped with an RF receiver module to realize wireless start and stop control.
[0030] The overall length of the trenching blade 11 is adjusted by setting an adjustment mechanism. The through groove 5 is connected to the fertilizer tank 2 outlet and the trenching blade 11 guide groove through a hose to ensure that the fertilizer is smoothly delivered to the fertilization point. Rotating the star head bolt 61 pushes the fixing block 62 to fix or loosen the adjusted handle 6. The handle 6 is equipped with a switch 63, which is wirelessly connected to the motor 3. The switch 63 can be a wireless remote control switch, such as the RF-433MHz wireless control module, which is small in size, fast in response, and easy to operate, suitable for complex field environments. The wireless communication method adopts radio frequency communication technology with a frequency of 433MHz to send control commands through radio frequency signals. The motor 3 is equipped with an RF receiving module to realize wireless start and stop control. This solves the technical problem in the existing technology that the length of the shovel handle 6 is not adjustable, which cannot adapt to workers of different heights or operating habits, resulting in fatigue during long-term operation and affecting work efficiency.
[0031] Working principle: Open the feed pipe port of fertilizer tank 2 and inject an appropriate amount of granular fertilizer into the tank. After the fertilizer is loaded, seal the feed pipe with a sealing plug or thermoplastic seal to prevent the fertilizer from clumping, leaking or deteriorating due to external environmental factors. The device is carried on the operator's back via the adjustable shoulder straps 21 and waist belt 22 located on the right side of the frame 1. The shoulder straps 21 are designed in accordance with ergonomic principles, which can evenly distribute the weight of the device on both shoulders. The waist belt 22 transfers part of the load to the waist and hips through the support structure, which significantly reduces shoulder pressure. The length of the shoulder straps 21 and waist belt 22 can be adjusted according to one's own body shape to ensure that the device remains stable during operation and avoids shaking that affects the accuracy of operation. The user holds the handle 6, rotates the star head bolt 61, drives the fixing block 62 to slide along the inner wall of the trenching knife 11, releases the axial limit on the handle 6, and moves the handle 6 to the predetermined working length to adapt to the user's height or different soil depths and planting needs. Then, the user rotates the star head bolt 61 in the opposite direction to make the fixing block 62 press against the outer surface of the handle 6 to form a friction lock, ensuring that there is no relative displacement between the handle 6 and the trenching knife 11. When fertilizing potatoes, insert the trenching knife 11 into the soil to manually form a fertilization trench of a predetermined depth. Press the wireless remote control switch 63 at the top of the handle 6 to send a start command to the receiving module at the end of the motor 3 via RF radio frequency signal. After the motor 3 starts, it drives the spiral conveyor rod 4 to rotate, quantitatively conveying fertilizer from the fertilizer tank 2 to the hose, and accurately guiding it into the fertilization trench through the through groove 5 and guide groove inside the trenching knife 11. During the fertilization process, the speed of the motor 3 can be adjusted in real time through the PWM speed control module to control the fertilizer output flow rate and meet the requirements of different soil types, crop growth stages and fertilization processes. Press the wireless switch 63 again to send a stop signal, the motor 3 stops running, the spiral conveyor rod 4 stops conveying fertilizer, and the single fertilization operation is completed. After fertilization, disassemble the fertilizer tank 2 and clean the tank and spiral conveyor rod 4 to prevent fertilizer residue from causing corrosion or blockage. The wireless switch 63 at the top of the handle 6 sends an radio frequency signal at a frequency of 433MHz. The signal contains start / stop or speed adjustment commands. The RF receiver module at the motor 3 receives the signal, decodes it, and controls the start / stop or speed adjustment of the motor 3. If the device is equipped with a pulse width modulation speed control module, the speed of the motor 3 can be changed by adjusting the knob to achieve precise control of the fertilizer application. The motor 3 is powered by the battery slot on the can lid. The battery can be a lithium battery or a nickel-metal hydride battery, which has the characteristics of high energy density, light weight and long life. The battery is connected to the motor 3 and the control module through wires to ensure that the motor 3 and the speed control module work normally. The wireless switch 63 has a built-in button battery or a small lithium battery to provide the power required for signal transmission. The RF receiver module is powered through the battery slot and shares the power supply with the motor 3, which simplifies the circuit design. The moving parts of the spiral conveyor rod 4, such as the bearings, the threaded part of the star head bolt 61, and the sliding contact surface of the fixing block 62, need to be lubricated regularly. Lithium-based grease can be used, which has good water resistance and corrosion resistance and is suitable for field environments. Lubrication should be performed every 10 hours of use or after each operation to ensure smooth movement of the moving parts. When motor 3 does not start, check the battery level, wireless signal connection, and whether the wiring of motor 3 is loose; when fertilizer delivery is not smooth, clean the fertilizer residue in the screw conveyor rod 4 and hose, check whether the hose is bent or blocked, and when handle 6 slides, check whether the rubber layer of fixing block 62 is worn. If necessary, replace the rubber layer or adjust the star head bolt 61; hose, rubber layer, battery and other vulnerable parts need to be inspected regularly, and replaced in time if aging or damage is found. After cleaning the device, each component can be disassembled and stored in a dry place to avoid corrosion caused by a humid environment; The electronic devices, their power supply methods, and control methods described in this article are all existing technologies with mature applications. Therefore, they will only be briefly explained here without further elaboration.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fertilization device for potato planting, comprising a frame (1) and a furrowing knife (11), characterized in that: The frame (1) is equipped with a conveying mechanism, which includes a spiral conveying rod (4). The rotation of the spiral conveying rod (4) conveys fertilizer in a quantitative manner. The inner wall of the grooving cutter (11) is provided with an adjustment mechanism, which includes a handle (6). The extension and retraction of the handle (6) adjusts the overall length of the grooving cutter (11).
2. The fertilization device for potato planting according to claim 1, characterized in that: The conveying mechanism also includes a fertilizer tank (2) with a feed pipe. The fertilizer tank (2) is fixedly installed on the inner side wall of the frame (1) by a clamp. Adjustable shoulder straps (21) and waist belts (22) are respectively provided on the right side surface of the frame (1).
3. The fertilization device for potato planting according to claim 2, characterized in that: A motor (3) is fixedly installed inside the lid of the fertilizer tank (2), and the output shaft of the motor (3) is rotatably connected to the groove inside the lid of the fertilizer tank (2) through a bearing.
4. The fertilization device for potato planting according to claim 3, characterized in that: The output shaft of the motor (3) is fixedly installed at one end of the screw conveyor (4), and the screw conveyor (4) is rotatably connected to the lower surface of the lid of the fertilizer tank (2) through a bearing.
5. A fertilization device for potato planting according to claim 2, characterized in that: The adjustment mechanism also includes a through groove (5), which is located inside the bottom end of the trenching knife (11). The bottom outlet of the fertilizer tank (2) is fixedly connected to the outer surface of the through groove (5) via a hose. The bottom end of the through groove (5) is fixedly connected to the bottom guide groove of the trenching knife (11).
6. The fertilization device for potato planting according to claim 3, characterized in that: The handle (6) is slidably inserted into the inner wall of the groove of the trenching cutter (11). The top arc surface of the trenching cutter (11) is threaded with a star head bolt (61). One end of the star head bolt (61) is rotatably connected to a fixing block (62) with a rubber layer. The fixing block (62) is slidably connected to the inner wall of the top groove of the trenching cutter (11). The rubber layer of the fixing block (62) is in contact with the arc surface of the handle (6). A switch (63) is provided on one side of the top of the handle (6). The switch (63) is wirelessly connected to the motor (3).