Agricultural soil plowing and fertilizing device

Abstract

The invention discloses an agricultural soil plowing and fertilizing device, and relates to the technical field of agricultural soil plowing and fertilizing equipment, the agricultural soil plowing and fertilizing device comprises a walking tractor with an internal combustion engine, the front end of the walking tractor is provided with a digging shovel mechanism for plowing soil, and the tail part of the walking tractor is provided with a fertilizing mechanism for uniformly scattering granular fertilizer; the digging shovel mechanism and the walking tractor synchronously dig soil when walking, and the fertilizing mechanism synchronously fertilizes when the digging shovel mechanism digs soil. According to the invention, the pull rod moves during the soil turning action of the digging and shoveling mechanism to drive the round rod to act, so that the round rod moves upwards to drive the valve rod positioned in the quantitative cylinder to be exposed out of the lower end opening of the hard bent pipe, and the function of releasing fertilizer is realized, therefore, the fertilizer can be applied to the soil turned by the digging and shoveling mechanism in the prior art by the fertilizer applying mechanism immediately, and the fertilizer applying efficiency is improved. And the time cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural soil tillage and fertilization equipment, and in particular to an agricultural soil tillage and fertilization device. Background Art

[0002] Before agricultural planting, the soil generally needs to be plowed. The existing technology generally uses a tiller. The function of the tiller is to turn the soil out of the ground to facilitate the subsequent fertilization process. Considering that plowing needs to be done in the field, if fertilization is carried out while plowing, time costs can be saved.

[0003] At the same time, considering that the above-mentioned tillage is carried out using agricultural machinery, how to design a device that can cooperate to achieve tillage and synchronous fertilization is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] The purpose of the present invention is to design an agricultural equipment which can carry out fertilization and tillage simultaneously.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] An agricultural soil tillage and fertilization device comprises a walking tractor with an internal combustion engine, wherein a shovel mechanism for tilling the soil is arranged at the front end of the walking tractor, and a fertilization mechanism for evenly spreading granular fertilizer is arranged at the rear end of the walking tractor; the shovel mechanism digs the soil synchronously with the walking tractor when it moves, and the fertilization mechanism fertilizes the soil synchronously with the shovel mechanism when it digs the soil.

[0007] Furthermore, a gear commutator is installed on the walk-behind tractor, and the input shaft of the gear commutator is connected to the output shaft of the internal combustion engine via a coupling. A first gear is fixed on the wheel axle of the walk-behind tractor, and the gear commutator has two output shafts, one of which is fixed with a second gear, the diameter of the second gear is smaller than the first gear, and the first gear and the second gear are connected via a chain transmission.

[0008] Furthermore, the shovel mechanism includes a U-shaped digging frame, a plurality of shovels vertically fixed thereto are provided at the U-shaped closed end of the digging frame, and also includes a driving mechanism arranged on the hand frame of the hand tractor, and the driving mechanism is used to drive the digging frame to drive the shovels to perform digging actions.

[0009] Furthermore, the driving mechanism includes two stands installed on the frame of the walk-behind tractor, and rotating shafts are installed on the two stands through bearings, one of the rotating shafts is connected to an output shaft of the gear commutator, and flying rods are fixed to the ends of the two rotating shafts, and the ends of the two flying rods are hinged to the digging frame through shafts, and the U-shaped opening ends of the digging frame are hinged with pull rods, and the other end of the pull rods is hinged to the hand frame body of the walk-behind tractor. It also includes a clutch fixedly arranged on the rotating shaft, and a handle bar box fixedly arranged on the hand frame body of the walk-behind tractor, and the handle bar box is used to control the separation of the clutch.

[0010] Furthermore, the fertilizing mechanism includes a fertilizer box installed on the hand frame of the hand tractor, and a plurality of quantitative discharging barrels arranged in a row are arranged at the bottom of the fertilizer box, and the quantitative discharging barrels are triggered by a pull rod to release fertilizer quantitatively while digging.

[0011] Furthermore, the quantitative discharging cylinder includes a connecting bucket connected and fixed at the bottom of the fertilizer box and a vertically arranged quantitative cylinder, the side of the quantitative cylinder and the bottom of the connecting bucket are connected by a hard bent pipe, a valve column is slidably arranged in the quantitative cylinder, a round rod is concentrically fixed on the valve column, the top of the quantitative cylinder is closed and the bottom is open, the round rod slides through the top of the quantitative cylinder, a spring sleeved on the outside of the round rod is arranged between the quantitative cylinder and the valve column, the spring is in a compressed state, so that when the pull rod is pulled, the round rod is moved upward to drive the valve column to expose the lower port of the hard bent pipe.

[0012] Furthermore, the bottoms of the multiple round rods are fixed to the same push rod, wherein a metering cylinder and the round rod extend upward and penetrate the fertilizer box, a square rod is laterally and vertically fixed to the extended end of the round rod, one end of the pull rod is hinged to the hand frame of the walk-behind tractor, extends outward and a trigger rod is hinged to the extended end, and the other end of the trigger rod is hinged to the end of the square rod.

[0013] Furthermore, a third gear is concentrically fixed on the wheel axle of the walk-behind tractor, a pair of mounting blocks are fixed at the bottom of the walk-behind tractor, a rotating rod is rotatably arranged between the two mounting blocks, a fourth gear is concentrically fixed on the rotating rod, the fourth gear is meshed with the third gear and the diameter of the third gear is larger than that of the fourth gear, and a crushing frame is also fixed on the rotating rod.

[0014] Furthermore, the crushing frame includes crushing blade rods distributed in a circular array around the axis of the rotating rod, and multiple crushing blade rods are fixedly connected by bent rods. The crushing blade rods are fixedly arranged in multiple groups at equal intervals along the length of the rotating rod, and leakage gaps are formed between each group.

[0015] Furthermore, a connecting channel is fixed on the walking tractor, the upper opening of the connecting channel is placed at the lower end of the metering cylinder to hold the granular fertilizer, and the connecting channel is constructed with a single channel corresponding to each metering cylinder, and the lower outlet of the connecting channel is located above the crushing frame.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention can drive the round rod to move through the movement of the pull rod when the digging mechanism turns the soil, so that the round rod can move upward, and drive the valve column located in the metering cylinder to expose the lower port of the hard bent pipe, thereby realizing the function of releasing fertilizer. Therefore, the fertilization mechanism can immediately apply fertilizer later, saving time cost.

[0018] 2. The present invention fixes the time for the extension end of the pull rod to rise, and thus the time for pulling the round rod to open is fixed. Based on the flow rate per unit cross-sectional area, it can ensure that the amount of fertilizer falling each time is basically the same, that is, the function of quantitative release is achieved.

[0019] 3. The present invention designs the crushing blade rod and the curved rod and the leakage gaps therebetween. When the fertilizer falls from each single channel, it may hit the crushing blade rod or the curved rod, or it may directly fall into the soil through the leakage gap. Therefore, in practice, only a part of the granular fertilizer will fall through the leakage gap, and the rest may be hit by the crushing blade rod or the curved rod and fall to other places, thus achieving the effect of scattering the fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from another angle;

[0022] Figure 3 The present invention Figure 1 Schematic diagram of the bottom three-dimensional structure;

[0023] Figure 4 The present invention Figure 1 A top view of

[0024] Figure 5 It is a partial structural schematic diagram of the present invention;

[0025] Figure 6 It is a schematic diagram of a three-dimensional structure showing a connecting channel of the present invention;

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the fertilizer box of the present invention;

[0027] Figure 8 The present invention Figure 7Enlarged view of point A in the middle;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the crushing frame in the present invention;

[0029] Fig.10 The present invention Fig. 9 A top view of

[0030] Figure numerals: 1, internal combustion engine; 2, hand tractor; 3, digging mechanism; 31, digging frame; 32, shovel; 33, driving mechanism; 331, stand; 332, rotating shaft; 333, flying rod; 334, shaft; 335, pull rod; 336, clutch; 337, handle bar box; 4, fertilizing mechanism; 41, fertilizer box; 42, quantitative discharge cylinder; 421, connecting bucket; 422, quantitative cylinder; 423, hard curved pipe; 424 , valve column; 425, round rod; 426, spring; 427, push rod; 428, square rod; 429, trigger rod; 5, gear commutator; 6, coupling; 7, first gear; 8, second gear; 9, chain; 10, third gear; 11, mounting block; 12, rotating rod; 13, fourth gear; 14, crushing frame; 141, crushing blade rod; 142, bent rod; 143, leakage gap; 15, connecting channel; 16, single channel. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] The agricultural soil tillage and fertilization device provided in this embodiment is mainly used to design an agricultural equipment for fertilization and tillage simultaneously, and provides the following technical solutions. Figure 1-Figure 10 Make a detailed description:

[0033] Embodiment 1:

[0034] An agricultural soil tillage and fertilization device includes a walking tractor 2 with an internal combustion engine 1. First of all, it should be noted that the internal combustion engine 1 here refers to the diesel engine on the existing walking tractor 2, which has great power and is suitable for field work. At the same time, it should be explained that the walking tractor 2 here has design structures such as shifting and throttle, which are not shown in the figure. Among them, the front end of the walking tractor 2 is provided with a shovel mechanism 3 for turning the soil, and the rear end of the walking tractor 2 is provided with a fertilizer mechanism 4 for evenly spreading granular fertilizer; more importantly, the shovel mechanism 3 and the walking tractor 2 dig the soil synchronously when they are moving, and the fertilizer mechanism 4 fertilizes the soil synchronously when the shovel mechanism 3 is digging the soil.

[0035] See also Figure 1 , Figure 3 , Figure 5 In order to enable the walking tractor 2 to obtain the power for walking, a gear commutator 5 is also installed on the walking tractor 2 here. The input shaft of the gear commutator 5 is connected to the output shaft of the internal combustion engine 1 through a coupling 6. At the same time, a first gear 7 is fixed on the wheel axle of the walking tractor 2. The gear commutator 5 has two output shafts, one of which is fixed with a second gear 8. After the power obtained from the internal combustion engine 1 is transmitted to the gear commutator 5, the second gear 8 also obtains the ability to rotate, and the diameter of the second gear 8 is smaller than the first gear 7. The first gear 7 and the second gear 8 are connected by a chain 9. When the second gear 8 rotates, the chain 9 can drive the first gear 7 to rotate, thereby allowing the wheel axle of the walking tractor 2 to rotate. The reason why the diameter of the second gear 8 is smaller than the first gear 7 is to make the speed at which the wheel axle can rotate during transmission smaller than the speed transmitted by the internal combustion engine 1, so that the walking speed of the entire walking tractor 2 meets the speed of working in the field.

[0036] See also Figure 1 , Figure 4 , Figure 5 In order to enable the walking tractor 2 to achieve the function of digging and turning the soil when walking, the digging mechanism 3 includes a U-shaped digging frame 31, and a plurality of shovels 32 are vertically fixed to the U-shaped closed end of the digging frame 31, and also includes a driving mechanism 33 arranged on the walking frame of the walking tractor 2, wherein the driving mechanism 33 is used to drive the digging frame 31 to drive the shovels 32 to dig soil; please refer to Figure 1 , Figure 4The driving mechanism 33 includes two seats 331 installed on the frame of the walking tractor 2, and rotating shafts 332 are installed on the two seats 331 through bearings, one of the rotating shafts 332 is connected to an output shaft of the gear commutator 5, and the ends of the two rotating shafts 332 are fixed with flying rods 333. When the rotating shafts 332 rotate, the flying rods 333 make circular motions, and the ends of the two flying rods 333 are hinged to the digging frame 31 through shaft rods 334. The U-shaped opening ends of the digging frame 31 are hinged with pull rods 335, and the other ends of the pull rods 335 are hinged to the hand frame body of the walking tractor 2. Then, at this time, the digging frame 31 has the function of digging forward and pulling backward, that is, the digging frame 31 drives the shovel with a forward tilting action similar to that of a crank connecting rod, and then is pulled by the pull rod 335 to obtain the function of digging and turning over the soil. In order to ensure that the digging frame 31 is not affected by walking after the operation is completed, it is also included here The clutch 336 is fixedly arranged on the rotating shaft 332, and the handle bar box 337 is fixedly arranged on the hand frame of the hand tractor 2. The handle bar box 337 is used to control the separation of the clutch 336. It should be additionally explained that the clutch 336 here is a component installed on the rotating shaft 332. As a prior art, it is used to control the contact synchronous movement of the two shafts and the separate movement after separation. Here, the rotating shaft 332 here is actually disconnected, and a clutch 336 is installed between the two sections. When the clutch 336 is closed, the two disconnected rotating shafts 332 can rotate synchronously. When the clutch 336 is separated, the rotating shaft 332 fixed to the flying rod 333 is unpowered. In this way, the function of closing the shovel mechanism 3 when the operation is completed is realized. At the same time, the handle bar box 337 here is actually to connect the pull line on the clutch 336 to the Figure 1 The handle bar on the handle of the middle hand tractor 2 and the upper box structure are provided with an L-shaped slot. By pulling the handle bar horizontally to the L-shaped slot, the clutch 336 is disengaged, thereby achieving the function of closing the shovel mechanism 3 after the operation is completed. Since the corresponding prior art exists here, no detailed description is required.

[0037] See also Figure 1 , Figure 7 , Figure 8 In order to realize quantitative fertilization while following the tillage, the fertilization mechanism 4 includes a fertilizer box 41 installed on the hand frame of the walking tractor 2, and a plurality of quantitative discharge cylinders 42 arranged in a row are arranged at the bottom of the fertilizer box 41, and the quantitative discharge cylinders 42 are controlled and triggered by the pull rod 335, so that the fertilizer is quantitatively released while digging the soil;

[0038] Among them, see Figure 7 , Figure 8The quantitative discharging cylinder 42 here includes a connecting bucket 421 connected and fixed at the bottom of the fertilizer box 41 and a vertically arranged quantitative cylinder 422. The side of the quantitative cylinder 422 and the bottom of the connecting bucket 421 are connected through a hard curved pipe 423. A valve column 424 is slidably arranged in the quantitative cylinder 422. As can be seen from the figure, the valve column 424 blocks the lower port of the hard curved pipe 423 at this time. In order to enable it to obtain the function of opening the lower port, a round rod 425 is concentrically fixed on the valve column 424. The top of the quantitative cylinder 422 is closed and the bottom is open. The round rod 425 slides through the top of the quantitative cylinder 422. A spring 426 is arranged between the quantitative cylinder 422 and the valve column 424 and is sleeved on the outside of the round rod 425. The spring 426 is in a compressed state. When the round rod 425 is pulled upward, the spring 426 is compressed. At this time, the lower port of the hard curved pipe 423 is opened, and the fertilizer can fall.

[0039] In order to realize the specific quantitative function, the bottoms of multiple round rods 425 are fixed to the same push rod 427, one of the quantitative cylinders 422 and the round rod 425 extends upward and passes through the fertilizer box 41, and the extended end of the round rod 425 is transversely and vertically fixed with a square rod 428, and the pull rod 335 is hinged to the hand frame of the hand tractor 2. One end extends outward and the extended end is hinged with a trigger rod 429, and the other end of the trigger rod 429 is hinged to the end of the square rod 428. Please refer to Figure 2 Here, the pull rod 335 is extended, which is equivalent to a lever at the hinge point with the walk-behind tractor 2. Then, the up and down movement of its extended end can pull the trigger rod 429 to drive the square rod 428 and the round rod 425, so that the round rod 425 can move upward, driving the valve column 424 located in the metering cylinder 422 to expose the lower port of the hard curved pipe 423, thereby realizing the function of releasing the fertilizer. It should be additionally explained that, because the time for the pull rod 335 to make a lever-like movement each time, that is, the time for the extended end to rise is fixed, the time for pulling the round rod 425 to open is fixed, and according to the flow rate per unit cross-sectional area, it can be ensured that the fertilizer dropped is roughly the same each time, that is, the quantitative function is realized.

[0040] Embodiment 2:

[0041] This embodiment adds the following technical solutions on the basis of embodiment 1: Figure 3A third gear 10 is also concentrically fixed on the wheel axle of the walking tractor 2. At the same time, a pair of mounting blocks 11 are fixed at the bottom of the walking tractor 2. A rotating rod 12 is rotatably arranged between the two mounting blocks 11. A fourth gear 13 is concentrically fixed on the rotating rod 12. The fourth gear 13 is meshed with the third gear 10 and the diameter of the third gear 10 is larger than the fourth gear 13. When the third gear 10 rotates with the wheel axle, it can drive the fourth gear 13 meshed with it to rotate. The rotating rod 12 here has the ability to rotate. The rotation of the rotating rod 12 can drive the crushing frame 14 therein to rotate, and then the excavated soil can be simply crushed.

[0042] See also Fig. 9 and Fig.10 The structure of the crushing frame 14 is described in detail here. The crushing frame 14 includes crushing blade rods 141 distributed in a circular array around the axis of the rotating rod 12. The crushing blade rods 141 are used to break up compacted soil. At the same time, in order to obtain a better crushing effect, multiple crushing blade rods 141 are fixedly connected by bent rods 142. The bent rods 142 here can not only be used to break up compacted soil but also can be used to reinforce adjacent crushing blade rods 141. In addition, multiple groups of crushing blade rods 141 are equidistantly fixedly arranged along the length direction of the rotating rod 12, and a leakage gap 143 is formed between each group.

[0043] Most importantly, a connecting channel 15 is fixed on the hand tractor 2, and the upper opening of the connecting channel 15 is placed at the lower end of the metering cylinder 422 to hold the granular fertilizer, and the connecting channel 15 is constructed with a single channel 16 corresponding to each metering cylinder 422, and the lower outlet of the connecting channel 15 is located above the crushing frame 14. When the fertilizer falls from each single channel 16, it may hit the crushing blade rod 141 or the bent rod 142, or it may fall directly into the soil through the leakage gap. Therefore, in practice, only a part of the granular fertilizer will fall through the leakage gap, and the rest will be hit by the crushing blade rod 141 or the bent rod 142 and can fall to other places, so the effect of spreading the fertilizer is achieved, so that the fertilizer will not be too concentrated in one place when it falls.

[0044] The workflow of the present invention is:

[0045] When in use, the internal combustion engine 1 is started first, and after the power obtained from the internal combustion engine 1 is transmitted to the gear commutator 5, the second gear 8 also obtains the ability to rotate, and the diameter of the second gear 8 is smaller than the first gear 7. The first gear 7 and the second gear 8 are connected by a chain 9. When the second gear 8 rotates, the chain 9 can drive the first gear 7 to rotate, thereby making the wheel axle of the walking tractor 2 rotate, and the walking tractor 2 obtains the ability to walk;

[0046] When the shovel reaches the field, the handle is swung to the left to disengage from the L-shaped slot. The clutch 336 is pulled by the spring 426, and the clutch 336 is closed. At this time, the rotating shaft 332 obtains power, and the digging frame 31 drives the shovel 32 to move forward like a crank connecting rod, and then is pulled by the pull rod 335 to dig the soil.

[0047] After the first place of soil is dug, as the hand tractor 2 moves, the extended end of the pull rod 335 moves, which can drive the round rod 425 to move, thereby causing the round rod 425 to move upward, driving the valve column 424 located in the metering cylinder 422 to expose the lower end of the hard curved pipe 423, thereby realizing the function of releasing fertilizer. Then, the soil turned over by the shovel mechanism 3 in the front will be fertilized by the fertilizing mechanism 4 immediately afterwards, saving time cost.

[0048] When the soil turning and fertilization are completed, the handle bar is pulled to the right to buckle the L-shaped slot, at which time the clutch 336 is disengaged, the rotating shaft 332 loses power, and the shovel mechanism 3 no longer digs the soil, and the fertilization mechanism 4 no longer fertilizes, and the vehicle can walk normally. It is necessary to explain here that please refer to Figure 2 The pull rod 335 here is rotatably connected to the hinge of the digging frame 31 with a counterweight (the rotatable connection can make the center of gravity of the counterweight always downward). The function of the counterweight is to lift the digging shovel 32 at the front end of the digging frame 31 to avoid digging into the ground while walking. It can be seen that this section of the counterweight in the figure is a labor-saving lever, so it can be completely tilted. It should also be noted that auxiliary walking wheels are also provided on both sides of the rear end of the walk-behind tractor 2, which are not shown in the figure.

[0049] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An agricultural soil tillage and fertilization device, comprising a walking tractor (2) having an internal combustion engine (1), characterized in that: The front end of the walking tractor (2) is provided with a shovel mechanism (3) for turning the soil, and the rear end of the walking tractor (2) is provided with a fertilizing mechanism (4) for evenly spreading granular fertilizer; the shovel mechanism (3) and the walking tractor (2) dig the soil synchronously when the walking tractor (2) is moving, and the fertilizing mechanism (4) fertilizes the soil synchronously when the shovel mechanism (3) is digging the soil.

2. The agricultural soil tillage and fertilization device according to claim 1, characterized in that: The walking tractor (2) is also equipped with a gear commutator (5), the input shaft of the gear commutator (5) is connected to the output shaft of the internal combustion engine (1) via a coupling (6), a first gear (7) is fixed on the wheel axle of the walking tractor (2), the gear commutator (5) has two output shafts, one of which is fixed with a second gear (8), the diameter of the second gear (8) is smaller than that of the first gear (7), and the first gear (7) and the second gear (8) are connected by a chain (9).

3. The agricultural soil tillage and fertilization device according to claim 1, characterized in that: The shovel mechanism (3) comprises a U-shaped digging frame (31), a plurality of shovels (32) vertically fixed to the U-shaped closed end of the digging frame (31), and a driving mechanism (33) arranged on the hand frame of the hand tractor (2), wherein the driving mechanism (33) is used to drive the digging frame (31) to drive the shovels (32) to perform digging.

4. The agricultural soil tillage and fertilization device according to claim 3, characterized in that: The driving mechanism (33) comprises two stands (331) mounted on the frame of the walking tractor (2), and a rotating shaft (332) is mounted on each of the two stands (331) via a bearing, wherein one of the rotating shafts (332) is connected to an output shaft of the gear commutator (5), and a flying rod (333) is fixed to the ends of the two rotating shafts (332), and the ends of the two flying rods (333) are hinged to the digging frame (31) via an axle rod (334), and a pull rod (335) is hinged to the U-shaped opening end of the digging frame (31), and the other end of the pull rod (335) is hinged to the hand frame body of the walking tractor (2), and also comprises a clutch (336) fixedly arranged on the rotating shaft (332), and a handle bar box (337) fixedly arranged on the hand frame body of the walking tractor (2), and the handle bar box (337) is used to control the separation of the clutch (336).

5. The agricultural soil tillage and fertilization device according to claim 4, characterized in that: The fertilizing mechanism (4) comprises a fertilizer box (41) mounted on a hand frame of a hand tractor (2), and a plurality of quantitative discharging cylinders (42) arranged in a row are arranged at the bottom of the fertilizer box (41), and the quantitative discharging cylinders (42) are controlled and triggered by a pull rod (335) so that fertilizer is quantitatively released while digging.

6. The agricultural soil tillage and fertilization device according to claim 5, characterized in that: The quantitative discharging cylinder (42) comprises a connecting bucket (421) connected and fixed at the bottom of the fertilizer box (41) and a vertically arranged quantitative cylinder (422). The side of the quantitative cylinder (422) and the bottom of the connecting bucket (421) are connected by a hard curved pipe (423). A valve column (424) is slidably arranged in the quantitative cylinder (422). A round rod (425) is coaxially fixed on the valve column (424). The top of the quantitative cylinder (422) is closed and the bottom is open. The round rod (425) slides through the top of the quantitative cylinder (422). A spring (426) sleeved on the outside of the round rod (425) is arranged between the quantitative cylinder (422) and the valve column (424). The spring (426) is in a compressed state. When the pull rod (335) is pulled, the round rod (425) moves upward to drive the valve column (424) to expose the lower end of the hard curved pipe (423).

7. The agricultural soil tillage and fertilization device according to claim 6, characterized in that: The bottoms of the plurality of round rods (425) are all fixed to the same push rod (427), wherein a metering cylinder (422) and the round rod (425) extend upward and penetrate the fertilizer box (41), a square rod (428) is transversely and vertically fixed to the extended end of the round rod (425), one end of the pull rod (335) is hinged to the hand frame of the hand tractor (2) and extends outwards, and a trigger rod (429) is hinged to the extended end, and the other end of the trigger rod (429) is hinged to the end of the square rod (428).

8. The agricultural soil tillage and fertilization device according to claim 1, characterized in that: A third gear (10) is also coaxially fixed on the wheel axle of the walking tractor (2); a pair of mounting blocks (11) are fixed on the bottom of the walking tractor (2); a rotating rod (12) is rotatably arranged between the two mounting blocks (11); a fourth gear (13) is coaxially fixed on the rotating rod (12); the fourth gear (13) is meshed with the third gear (10) and the diameter of the third gear (10) is larger than that of the fourth gear (13); a crushing frame (14) is also fixed on the rotating rod (12).

9. The agricultural soil tillage and fertilization device according to claim 8, characterized in that: The crushing frame (14) comprises crushing blade rods (141) distributed in a circular array around the axis of the rotating rod (12), and a plurality of the crushing blade rods (141) are fixedly connected via bent rods (142). A plurality of groups of the crushing blade rods (141) are fixedly arranged at equal intervals along the length of the rotating rod (12), and a material leakage gap (143) is formed between each group.

10. The agricultural soil tillage and fertilization device according to claim 1, characterized in that: A communication channel (15) is fixed on the walking tractor (2), the upper opening of the communication channel (15) is placed at the lower end of the metering cylinder (422) to hold the granular fertilizer, and the communication channel (15) is configured with a single channel (16) corresponding to each metering cylinder (422), and the lower outlet of the communication channel (15) is located above the crushing frame (14).

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