Soil compaction device for vegetable planting and use method thereof

Abstract

The invention discloses a soil compaction device for vegetable planting and a use method thereof, and relates to the field of devices for vegetable planting. A soil compaction device for vegetable planting comprises a rack and further comprises a compression roller arranged on the rack, the two sides of the compression roller penetrate through the rack and are rotationally connected with the rack, and a first belt wheel is arranged on one side of the compression roller; the rolling claws are fixedly connected to a rotating shaft, the rotating shaft is rotationally arranged below the rack, a second belt wheel is arranged at one end of the rotating shaft, and the second belt wheel is connected with the first belt wheel through a synchronous belt; the spraying assembly is arranged on one side of the pressing roller; soil is compacted through rolling of the pressing roller, meanwhile, the first belt wheel is driven by rolling of the pressing roller to rotate, the second belt wheel is driven by the first belt wheel through the synchronous belt, the rotating shaft drives the rolling claw to rotate, and the rotating rolling claw turns over the soil and cuts up the caked soil before the soil is compacted by the pressing roller; meanwhile, the spraying assembly sprays liquid medicine to the soil.

Description

Technical Field

[0001] The present invention belongs to the technical field of vegetable planting devices, and in particular, relates to a soil compacting device for vegetable planting. Background Art

[0002] Soil compaction refers to the process in which the bulk density of soil increases and the porosity decreases accordingly under the action of external forces. Transportation vehicles, agricultural machinery, land improvement equipment, rolling of civil engineering machinery and overgrazing are all man-made factors that cause this process, that is, secondary factors. Natural factors can also induce soil compaction. For the vegetable planting industry, it is usually necessary to repeatedly loosen and compact the soil in order to plant seedlings of vegetables and other plants.

[0003] Before compacting the soil, it is usually necessary to loosen the soil first. If the soil is compacted directly without being loosened, it is easy to cause soil compaction, affecting the root growth and nutrient absorption of crops. In addition, the soil is looser after loosening, and the pressure can be distributed more evenly during compaction, thereby improving the compaction effect. At the same time, the soil after loosening increases the gaps between soil particles, which is conducive to the penetration of the drug solution into the deep soil layer, improves the uniformity of the distribution of the drug solution in the soil, and can indirectly promote the absorption and utilization of the drug solution by vegetable crops. Therefore, spraying the drug solution on the soil before compacting the soil can achieve better results. However, in large-scale vegetable planting, the three processes of loosening the soil, spraying the drug, and compacting are carried out separately, which wastes time and is inefficient. For this reason, we propose a soil compacting device for vegetable planting. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide a soil compacting device for vegetable planting that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a soil compacting device for vegetable planting, including a frame, and also including: a pressure roller is arranged on the frame, both sides of the pressure roller pass through the frame and are connected to the frame for rotation, and a first pulley is arranged on one side of the pressure roller; a plurality of roller claws are fixedly connected to the rotating shaft, the rotating shaft is rotatably arranged below the frame, a second pulley is arranged at one end of the rotating shaft, and the second pulley is connected to the first pulley through a synchronous belt; a spray assembly, and the spray assembly is arranged on one side of the pressure roller; when the pressure roller rotates, the first pulley drives the second pulley to drive the rotating shaft to rotate, the roller claws turn over and cut the soil, and at the same time, the spray assembly sprays liquid medicine on the soil.

[0006] Preferably, the lower part of the frame is fixedly connected with symmetrically arranged guide rails, the rotating shaft passes through the guide rails, and both ends of the rotating shaft are also fixedly connected with positioning pieces, and the positioning pieces are slidably connected with the guide rails.

[0007] Furthermore, the spray assembly includes: a follower rod fixedly connected to one end of the pressure roller, a rocker arm rotationally connected to one end of the follower rod, a push rod rotationally connected to the other end of the rocker arm, a liquid cylinder slidably connected to the push rod, a piston slidably connected to one end of the push rod and slidably connected to the inner wall of the liquid cylinder, a liquid suction pipe and a liquid discharge pipe fixedly connected to the liquid cylinder, a first one-way valve and a second one-way valve fixedly arranged on the liquid suction pipe and the liquid discharge pipe, respectively, and a plurality of nozzles fixedly connected to the liquid discharge pipe.

[0008] Furthermore, a second support is fixedly connected to one side of the frame, and the liquid cylinder is fixedly mounted on the frame through the second support. A plurality of lugs are also provided at the lower portion of the frame, and both ends of the lugs are respectively fixedly connected to the frame and a drain pipe. A first support is also fixedly connected to the top of the frame, and a liquid tank is fixedly mounted on the first support, and one end of the liquid extraction tube is fixedly connected to the liquid tank.

[0009] Furthermore, it also includes: a lifting component for driving the roller to lift in the vertical direction, and the lifting component includes: a sliding frame, a motor, a horizontal screw, a gear, a vertical screw, and a threaded sleeve.

[0010] Furthermore, a slide groove is provided at the bottom of the sliding frame, a slide rail corresponding to the slide groove is fixedly connected to the top of the frame, the sliding frame is slidably connected to the slide rail through the slide groove, the motor is fixedly installed on the sliding frame, and a horizontal screw is fixedly connected to the output end of the motor, and the horizontal screw is threadedly connected to the frame.

[0011] Furthermore, the gear is rotatably connected to both ends of the sliding frame, a rack is fixedly connected to the frame, the gear is meshed with the rack, a strip groove is also provided on the frame, the top of the vertical screw passes through the strip groove and the sliding frame and is fixedly connected to the gear, the lower part of the vertical screw is threadedly connected in the threaded sleeve, the bottom of the threaded sleeve is fixedly connected to a connecting seat, and the connecting seat is rotatably connected to the rotating shaft.

[0012] Preferably, a sliding sleeve is rotatably connected to the vertical screw rod, and the sliding sleeve is slidably connected in the strip groove.

[0013] Preferably, two connecting arms are fixedly connected to both sides of the frame, and the other ends of the two connecting arms are fixedly connected and rotatably connected to a towing hook.

[0014] A method for using a soil compacting device for vegetable planting comprises the following steps: S1, compacting the soil by rolling a pressure roller, while the rolling of the pressure roller drives a first pulley to rotate, the first pulley drives a second pulley through a synchronous belt, so that a rotating shaft drives a rolling claw to rotate, and the rotating rolling claw turns the soil and cuts the agglomerated soil into pieces before the pressure roller compacts the soil; S2, when the pressure roller rotates, liquid medicine is also drawn from a liquid tank through a spray assembly and sprayed on the soil that has been turned over by the rolling claw, and each rotation of the pressure roller drives the spray assembly to spray the liquid medicine once, so as to avoid excessive concentration or waste of liquid medicine in the soil caused by continuous spraying of the liquid medicine.

[0015] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the attached picture: Figure 1 A schematic diagram of the structure of a soil compacting device for vegetable planting proposed by the present invention Figure 1 ; Figure 2 A schematic diagram of the structure of a soil compacting device for vegetable planting proposed by the present invention Figure 2 ; Figure 3 A soil compacting device for vegetable planting proposed by the present invention Figure 2 The structural diagram at A in the middle; Figure 4 A schematic diagram of the structure of a soil compacting device for vegetable planting proposed by the present invention Figure 3 ; Figure 5 This is a schematic structural diagram of a frame of a soil compacting device for vegetable planting proposed by the present invention; Figure 6 A soil compacting device for vegetable planting proposed by the present invention Figure 5 The structural diagram at B in the middle; Figure 7 This is a schematic diagram of the structure of a rotating shaft and rolling claws of a soil compacting device for vegetable planting proposed by the present invention; Figure 8 This is a schematic structural diagram of a lifting assembly of a soil compacting device for vegetable planting proposed by the present invention.

[0017] In the figure: 1, frame; 11, connecting arm; 12, towing hook; 13, first support; 14, second support; 15, guide rail; 16, lug; 17, rack; 18, strip groove; 19, slide rail; 2, pressure roller; 21, first pulley; 22, synchronous belt; 23, follower rod; 24, rocker; 25, push rod; 3, rolling claw; 31, rotating shaft; 32, positioning plate; 33, second pulley; 4, liquid tank; 5, liquid cylinder; 51, piston; 52, suction pipe; 521, first one-way valve; 53, discharge pipe; 531, second one-way valve; 532, nozzle; 6, sliding frame; 60, slide groove; 61, motor; 611, horizontal screw; 62, gear; 621, sleeve; 622, vertical screw; 63, threaded sleeve; 631, connecting seat. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0019] Example 1: Reference Figure 1-Figure 7 , a soil compacting device for vegetable planting includes a frame 1, and also includes: a pressure roller 2 is arranged on the frame 1, both sides of the pressure roller 2 pass through the frame 1 and are rotatably connected to the frame 1, and a first pulley 21 is arranged on one side of the pressure roller 2; a plurality of roller claws 3 fixedly connected to the rotating shaft 31, the rotating shaft 31 is rotatably arranged below the frame 1, and a second pulley 33 is arranged at one end of the rotating shaft 31, and the second pulley 33 is connected to the first pulley 21 through a synchronous belt 22; a spray assembly, the spray assembly is arranged on one side of the pressure roller 2; when the pressure roller 2 rotates, the first pulley 21 drives the second pulley 33 to drive the rotating shaft 31 to rotate, and the roller claws 3 turn over and cut the soil, and at the same time, the spray assembly sprays liquid medicine on the soil; the present invention is placed in an area where soil compaction operation is required, and the present invention is driven to move on the soil surface, the pressure roller 2 will roll, and through the first pulley 21, the synchronous belt 22, the first pulley 21, the synchronous belt 22, the second pulley 33 and the first pulley 21 will rotate. The two pulleys 33 drive the rotating shaft 31 to rotate, thereby driving several rolling claws 3 on the rotating shaft 31 to rotate around the rotating shaft 31. The rolling claws 3 turn over and loosen the soil in front of the pressing roller 2, and some agglomerated soil will also be cut and broken by the rolling claws 3 to make the soil looser. As the soil surface of the present invention continues to move, the rolling pressing roller 2 compacts the soil loosened by the rolling claws 3. The soil loosened in advance by the rolling claws 3 can distribute the pressure more evenly during compaction, thereby improving the compaction effect to ensure that the soil has better stability and bearing capacity; and the rotation of the pressing roller 2 will also drive the spraying component to periodically spray the liquid medicine to the soil that has been turned over and broken by the rolling claws 3. Every time the pressing roller 2 rolls one circle, the spraying component sprays the liquid medicine once, thereby avoiding continuous spraying of the liquid medicine to the soil causing excessive concentration of the liquid medicine in the soil, affecting the survival rate of vegetable planting, and at the same time saving the liquid medicine and reducing the cost of use.

[0020] Example 2: Reference Figure 1-Figure 7, a soil compacting device for vegetable planting, which is basically the same as embodiment 1, and further: a symmetrically arranged guide rail 15 is fixedly connected to the lower part of the frame 1, a rotating shaft 31 passes through the guide rail 15, and both ends of the rotating shaft 31 are also fixedly connected to positioning pieces 32, and the positioning pieces 32 are slidably connected to the guide rail 15; the spray assembly includes: a follower rod 23 fixedly connected to one end of the pressure roller 2, a rocker 24 rotatably connected to one end of the follower rod 23, a push rod 25 rotatably connected to the other end of the rocker 24, a liquid cylinder 5 slidably connected to the push rod 25, a piston 51 slidably connected to one end of the push rod 25 and slidably connected to the inner wall of the liquid cylinder 5, a suction pipe 52 and a discharge pipe 53 fixedly connected to the liquid cylinder 5, and respectively fixedly arranged The first one-way valve 521 and the second one-way valve 531 are arranged on the liquid extraction pipe 52 and the liquid discharge pipe 53, and a plurality of nozzles 532 are fixedly connected to the liquid discharge pipe 53; a second support 14 is fixedly connected to one side of the frame 1, and the liquid cylinder 5 is fixedly installed on the frame 1 through the second support 14. A plurality of lugs 16 are also provided at the lower part of the frame 1, and the two ends of the lugs 16 are respectively fixedly connected to the frame 1 and the liquid discharge pipe 53. The top of the frame 1 is also fixedly connected to the first support 13, and a liquid tank 4 is fixedly installed on the first support 13. One end of the liquid extraction pipe 52 is fixedly connected to the liquid tank 4; the guide rails 15 arranged on both sides of the frame 1 are in contact with the positioning pieces 32 fixedly connected to the two sides of the rotating shaft 31, and are used to adjust the position of the liquid cylinder 53 when the rotating shaft 31 rotates. The rotating shaft 31 and the roller 3 are prevented from shaking during the process, causing the second pulley 33 and the synchronous belt 22 to disengage; as the pressure roller 2 rotates, the follower rod 23 on one side of the pressure roller 2 is driven to rotate, and the rotation of the follower rod 23 will drive the push rod 25 to move through the rocker 24. Due to the limiting effect of the side wall of the liquid cylinder 5 and the piston 51 on the push rod 25, the push rod 25 can only slide back and forth in the horizontal direction, driving the piston 51 to slide back and forth in the liquid cylinder 5. It should be noted that the connection and movement mode of the follower rod 23, the rocker 24, and the push rod 25 adopt a conventional crank-connecting rod structure, which is a prior art and will not be repeated here; the liquid to be sprayed is filled in the liquid tank 4 in advance, and when the piston 51 moves away from the liquid extraction pipe 5 in the liquid cylinder 5 2, the air pressure in the liquid cylinder 5 becomes smaller, at this time the first one-way valve 521 opens, the second one-way valve 531 closes, and the liquid medicine in the liquid tank 4 is pumped into the liquid cylinder 5 through the liquid pumping pipe 52; when the piston 51 slides in the liquid cylinder 5 toward the side close to the liquid pumping pipe 52, the hydraulic pressure in the liquid cylinder 5 increases, at this time the first one-way valve 521 closes, the second one-way valve 531 opens, and the liquid medicine in the liquid cylinder 5 is squeezed into the liquid discharge pipe 53, and sprayed onto the soil through a plurality of nozzles 532 opened on the liquid discharge pipe 53. Since the soil has been turned and crushed by the rolling claws 3, the liquid medicine can be more evenly absorbed and penetrated by the soil when it is sprinkled on the soil, which effectively improves the utilization rate of the liquid medicine, and is beneficial to the growth of the root system and nutrient absorption when planting vegetables;Each time the roller 2 rolls one circle, the follower rod 23, the rocker 24, and the push rod 25 drive the piston 51 to complete a reciprocating slide in the cylinder 5. As the roller 2 keeps rolling, the cylinder 5 continuously performs a pumping and discharging cycle, so that the liquid medicine is periodically sprayed out from the nozzle 532, avoiding the problem that the traditional spraying method easily causes excessive liquid medicine content in the soil, affecting the growth of vegetable roots, and also saving liquid medicine to reduce the cost in the vegetable planting process; the liquid tank 4 and the liquid cylinder 5 are connected to the frame 1 through the first support 13 and the second support 14 respectively, so as to ensure that when the present invention is in working state, the liquid tank 4 and the liquid cylinder 5 can be effectively fixed to prevent shaking. ;

[0021] Example 3: Reference Figure 1-Figure 8, a soil compacting device for vegetable planting, which is basically the same as Example 2, and further includes: a lifting component for driving the roller claw 3 to lift in the vertical direction, the lifting component includes: a sliding frame 6, a motor 61, a horizontal screw 611, a gear 62, a vertical screw 622, and a threaded sleeve 63; a slide groove 60 is provided at the bottom of the sliding frame 6, and a slide rail 19 corresponding to the slide groove 60 is fixedly connected to the top of the frame 1, and the sliding frame 6 is slidably connected to the slide rail 19 through the slide groove 60, the motor 61 is fixedly installed on the sliding frame 6, and the output end of the motor 61 is fixedly connected to the horizontal screw 611, and the horizontal screw 611 is threadedly connected to the frame 1; the gear 62 is rotatably connected to both ends of the sliding frame 6, The frame 1 is fixedly connected with a rack 17, and the gear 62 is meshed with the rack 17. The frame 1 is also provided with a strip groove 18. The top of the vertical screw 622 passes through the strip groove 18 and the sliding frame 6 and is fixedly connected to the gear 62. The lower part of the vertical screw 622 is threadedly connected in the threaded sleeve 63, and the bottom of the threaded sleeve 63 is fixedly connected with a connecting seat 631, and the connecting seat 631 is rotatably connected to the rotating shaft 31; the vertical screw 622 is also rotatably connected with a sliding sleeve 621, and the sliding sleeve 621 is slidably connected in the strip groove 18; two connecting arms 11 are fixedly connected on both sides of the frame 1, and the other ends of the two connecting arms 11 are fixedly connected and rotatably connected with a towing hook 12; due to the different requirements of sowing depth for different vegetable crops The requirements of the degree are different. By setting a lifting assembly for the rolling claw 3, the turning depth of the rolling claw 3 when loosening the soil can be changed; when the depth of loosening the soil is deeper, the motor 61 is started, and the motor 61 drives the horizontal screw 611 to rotate. Since the horizontal screw 611 is threadedly connected to the frame 1, the rotation of the horizontal screw 611 will drive the motor 61 and the sliding frame 6 to slide in the direction close to the pressure roller 2, and the slide groove 60 at the bottom of the sliding frame 6 cooperates with the slide rail 19 to reduce the resistance of the sliding frame 6 when sliding; when the sliding frame 6 slides, the gear 62 rotatably connected on the sliding frame 6 will rotate due to the meshing with the rack 17, driving the vertical screw 622 to rotate, and the threaded sleeve 63 connected to the lower thread of the vertical screw 622 is limited by the connecting seat 631 and the rotating shaft 31. The action of the position will move downward, pushing the rotating shaft 31 to move downward, so that the rolling claw 3 can dig deeper into the soil when rotating. When the depth of loosening the soil is shallow, the above operation is performed in reverse, so that the depth of the rolling claw 3 digging into the soil when rotating can be shallower; the guide rail 15 is set to an arc shape with the center of the first pulley 21, and at the same time, an arc groove with the same width and the same arc as the guide rail 15 is opened on the guide rail 15, so that the rotating shaft 31 can slide in the guide rail 15 while ensuring that the second pulley 33 and the first pulley 21 always keep the same distance, so that the synchronous belt 22 is always in a tensioned state, and when the rotating shaft 31 is located at any position in the arc groove, the rotation of the first pulley 21 can be effectively transmitted to the second pulley 33 through the synchronous belt 22;The strip groove 18 provided on the frame 1 enables the vertical screw 622 to move with the sliding frame 6. A sliding sleeve 621 slidably connected to the strip groove 18 is also rotatably connected to the outer periphery of the vertical screw 622, thereby improving the stability of the vertical screw 622 when moving in the strip groove 18 and preventing the threads on the vertical screw 622 from wearing the inner wall of the strip groove 18. The connecting arm 11 provided on the frame 1 can be installed on agricultural machinery such as a tractor, or can be pulled by livestock. The rotatable towing hook 12 provided on the connecting arm 11 can cooperate with various forms of towing hooks on other agricultural machinery, further increasing the adaptability of the present invention.

[0022] Example 4: Reference Figure 1-Figure 8 , a method for using a soil compacting device for vegetable planting, comprising the following steps: S1, compacting the soil by rolling a pressure roller 2, while the rolling of the pressure roller 2 drives the first pulley 21 to rotate, the first pulley 21 drives the second pulley 33 through the synchronous belt 22, so that the rotating shaft 31 drives the rolling claw 3 to rotate, and the rotating rolling claw 3 turns the soil and cuts the agglomerated soil into pieces before the pressure roller 2 compacts the soil; S2, when the pressure roller 2 rotates, the liquid medicine is also drawn from the liquid tank 4 through the spray component and sprayed on the soil that has been turned over by the rolling claw 3. Each time the pressure roller 2 rotates one circle, the spray component is driven to spray the liquid medicine once, so as to avoid excessive concentration or waste of the liquid medicine in the soil caused by continuous spraying of the liquid medicine.

[0023] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the present invention can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A soil compacting device for vegetable planting, comprising a frame (1), characterized in that: Also includes: The frame (1) is provided with a pressure roller (2), both sides of the pressure roller (2) pass through the frame (1) and are rotatably connected to the frame (1), and one side of the pressure roller (2) is provided with a first pulley (21); a plurality of roller claws (3) fixedly connected to a rotating shaft (31), the rotating shaft (31) is rotatably arranged below the frame (1), one end of the rotating shaft (31) is provided with a second pulley (33), and the second pulley (33) is connected to the first pulley (21) via a synchronous belt (22); a spray assembly is provided on one side of the pressure roller (2); when the pressure roller (2) rotates, the first pulley (21) drives the second pulley (33) to drive the rotating shaft (31) to rotate, and the roller claws (3) turn over and cut the soil, and at the same time, the spray assembly sprays liquid medicine on the soil.

2. A soil compacting device for vegetable planting according to claim 1, characterized in that: The lower part of the frame (1) is fixedly connected to a symmetrically arranged guide rail (15), the rotating shaft (31) passes through the guide rail (15), and both ends of the rotating shaft (31) are also fixedly connected to positioning pieces (32), and the positioning pieces (32) are slidably connected to the guide rail (15).

3. A soil compacting device for vegetable planting according to claim 2, characterized in that: The spray assembly comprises: a follower rod (23) fixedly connected to one end of the pressure roller (2), a rocker rod (24) rotatably connected to one end of the follower rod (23), a push rod (25) rotatably connected to the other end of the rocker rod (24), a liquid cylinder (5) slidably connected to the push rod (25), a piston (51) slidably connected to one end of the push rod (25) and slidably connected to the inner wall of the liquid cylinder (5), a liquid suction pipe (52) and a liquid discharge pipe (53) fixedly connected to the liquid suction pipe (52) and the liquid discharge pipe (53), a first one-way valve (521) and a second one-way valve (531) respectively fixedly arranged on the liquid suction pipe (52) and the liquid discharge pipe (53), and a plurality of nozzles (532) fixedly connected to the liquid discharge pipe (53).

4. A soil compacting device for vegetable planting according to claim 3, characterized in that: A second support (14) is fixedly connected to one side of the frame (1), and the liquid cylinder (5) is fixedly mounted on the frame (1) via the second support (14). A plurality of lugs (16) are also provided at the bottom of the frame (1), and two ends of the lugs (16) are respectively fixedly connected to the frame (1) and a liquid discharge pipe (53). A first support (13) is also fixedly connected to the top of the frame (1), and a liquid tank (4) is fixedly mounted on the first support (13), and one end of the liquid extraction pipe (52) is fixedly connected to the liquid tank (4).

5. A soil compacting device for vegetable planting according to claim 4, characterized in that: Also includes: A lifting component for driving the roller claw (3) to lift in a vertical direction, the lifting component comprising: a sliding frame (6), a motor (61), a horizontal screw rod (611), a gear (62), a vertical screw rod (622), and a threaded sleeve (63).

6. A soil compacting device for vegetable planting according to claim 5, characterized in that: A slide groove (60) is provided at the bottom of the sliding frame (6); a slide rail (19) corresponding to the slide groove (60) is fixedly connected to the top of the frame (1); the sliding frame (6) is slidably connected to the slide rail (19) via the slide groove (60); the motor (61) is fixedly mounted on the sliding frame (6); a horizontal screw rod (611) is fixedly connected to the output end of the motor (61); and the horizontal screw rod (611) is threadedly connected to the frame (1).

7. A soil compacting device for vegetable planting according to claim 6, characterized in that: The gear (62) is rotatably connected to both ends of the sliding frame (6); a rack (17) is fixedly connected to the frame (1); the gear (62) meshes with the rack (17); a strip groove (18) is also provided on the frame (1); the top of the vertical screw rod (622) passes through the strip groove (18) and the sliding frame (6) and is fixedly connected to the gear (62); the lower part of the vertical screw rod (622) is threadedly connected to the threaded sleeve (63); the bottom of the threaded sleeve (63) is fixedly connected to a connecting seat (631); and the connecting seat (631) is rotatably connected to the rotating shaft (31).

8. A soil compacting device for vegetable planting according to claim 7, characterized in that: The vertical screw rod (622) is also rotatably connected to a sliding sleeve (621), and the sliding sleeve (621) is slidably connected in the strip groove (18).

9. The soil compacting device for vegetable planting according to claim 1, characterized in that: Two connecting arms (11) are fixedly connected to both sides of the frame (1), and the other ends of the two connecting arms (11) are fixedly connected and rotatably connected to a towing hook (12).

10. A method for using a soil compacting device for vegetable planting, characterized in that: A soil compacting device for vegetable planting as claimed in claim 1 comprises the following steps: S1, compacting the soil by rolling a pressure roller (2), while the rolling of the pressure roller (2) drives the first pulley (21) to rotate, the first pulley (21) drives the second pulley (33) through a synchronous belt (22), so that the rotating shaft (31) drives the rolling claw (3) to rotate, and the rotating rolling claw (3) turns the soil and cuts the agglomerated soil into pieces before the pressure roller (2) compacts the soil; S2, when the pressure roller (2) rotates, liquid medicine is also drawn from the liquid tank (4) through the spray assembly and sprayed on the soil turned by the rolling claw (3), and the pressure roller (2) drives the spray assembly to spray liquid medicine once every rotation, so as to avoid excessive concentration or waste of liquid medicine in the soil caused by continuous spraying of liquid medicine.

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