Soil fumigation disinfection device based on insecticide substitute technology

Abstract

The invention relates to the technical field of soil treatment, in particular to a pesticide substitute technology-based soil fumigation disinfection device which comprises a traction part, a pesticide spraying device and a plurality of pesticide preparation devices, the traction part consists of a traction pipe and a pair of cylinder wheels; the pesticide spraying device comprises a pair of coulters arranged on the two sides of the middle section of the traction pipe, a pesticide spraying pipe attached to the rear sides of the coulters, a water pump suspended above the barrel wheel and a storage battery. A water outlet of the water pump is sleeved and matched with the two pesticide spraying pipes through a three-way joint; the medicine preparation device is composed of a medicine storage box and a medicine supporting seat clamped to the bottom of the medicine storage box. Precise ditching is completed by adjusting the depth of the coulter, different soil hardness requirements are met, after the coulter breaks soil and ditches, the atomization nozzle evenly sprays liquid medicine into ditches, the liquid medicine sufficiently permeates along with soil turning, the speed regulator is combined to adjust the flow of the water pump, the technical effects of precise utilization and low waste of the liquid medicine are achieved, it is ensured that the liquid medicine directly reaches a target soil layer, and the soil quality is improved. The efficient permeation and fumigation disinfection effects are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of soil treatment, and in particular to a soil fumigation and disinfection device based on the technology of pesticide substitutes. Background Technique

[0002] Traditional soil fumigation and disinfection rely on chemical pesticides such as methyl bromide and chloropicrin. Although they can effectively kill pathogenic microorganisms, they have problems such as toxic residues, environmental pollution, and the risk of drug resistance. With the increasing demand for green agriculture, bio-based or low-toxic substitutes such as plant essential oils, microbial agents, and ozone water have become research hotspots.

[0003] The invention patent with the application number CN202411990067.4 discloses a soil fumigation and disinfection device for agricultural production, including a bracket, an atomizer, and a partition component arranged outside the atomizer. The atomizer is fixedly connected to the bottom of the bracket. The partition component includes a fan wheel rotatably connected to the outer wall of the atomizer, and a plurality of partition plates are fixedly connected to the inner part of the fan wheel in an annular array; by the relative approach of two arc plates, the air outlet below the atomizer is blocked, avoiding the problem of leakage caused by the rotation of the partition plate at the air outlet below the atomizer, ensuring the efficient utilization of the drug vapor, and preventing the drug vapor from volatilizing to the outside due to sealing problems. The compartments formed by the partition plates inside the fan wheel are blocked from the outside, so that the drug vapor emitted by the atomizer can act efficiently on the soil below the atomizer, avoiding the emission of the vapor inside the fan wheel due to external factors, and increasing the treatment effect on the soil during fumigation.

[0004] Due to the characteristics of strong volatility, short action time, and the need for precise application of bio-based or low-toxic substitute disinfectants, higher requirements are put forward for the application device. Existing fumigation equipment is designed for liquid or gaseous chemical agents. By using a fan wheel partition component to seal the atomizer, although the volatilization of the liquid medicine is reduced, there are problems of poor application uniformity and low liquid medicine penetration efficiency: substitute disinfectants need to be in full contact with the soil, and it is difficult for existing fumigation equipment to achieve deep penetration during spraying; in view of the above problems, there is an urgent need for a soil fumigation and disinfection device with uniform application and high penetration. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a soil fumigation and disinfection device based on the technology of pesticide substitutes, which completes the efficient utilization of volatile substitutes through the "ditching - atomizing - backfilling" dynamic sealing technology, reduces the escape of the liquid medicine, and achieves the sterilization effect of uniform penetration with chemical agents, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides a soil fumigation and disinfection device based on the technology of pesticide substitutes, including a traction part connected to a towing vehicle, a spraying device arranged on the traction part, and a plurality of medicine preparation devices. The medicine preparation devices are connected to the traction part and towed, and are used to provide liquid medicine.

[0007] The traction part is composed of a pulling pipe and a pair of cylinder wheels. The two cylinder wheels are coaxially and rotatably connected to the rear end of the pulling pipe. The spraying device includes a pair of plow blades arranged on both sides of the middle section of the pulling pipe, a spraying pipe attached to the rear side of the plow blades, a water pump suspended above the cylinder wheels, and a storage battery. The water outlet of the water pump is sleeved and matched with the two spraying pipes through a three-way joint.

[0008] The medicine preparation device is composed of a medicine storage box and a medicine supporting seat clamped at the bottom thereof. The water inlet of the water pump is connected to the medicine storage box through a water pipe. A plurality of medicine supporting seats are rotatably connected back and forth, and the foremost medicine supporting seat is connected to the pulling pipe through a pull rod. Shock-absorbing wheel sets are installed on the left and right sides of the medicine supporting seat, and are used to assist the medicine supporting seat to adapt to the land road conditions and move forward.

[0009] The above settings complete precise trenching through adjustable plow blade depth. After the plow blades break the soil and open the trenches, the atomizing nozzles evenly spray the liquid medicine into the trenches, and the liquid medicine fully penetrates with the soil turning. The operation capacity is expanded through the modular medicine preparation device. The atomizing spraying and traction are synchronized to complete the efficient soil fumigation and disinfection operation.

[0010] As a further improvement of this technical solution, sleeves are fixedly connected to both sides of the middle section of the pulling pipe. The plow blades are inserted into the sleeves. Positioning holes are provided on the inner and outer side walls of the sleeves, and a plurality of distance adjustment holes are provided on the upper half side wall of the plow blades. The bolts are threadedly connected to the positioning holes and penetrate into the distance adjustment holes.

[0011] This setting adjusts the insertion depth of the plow blades through the cooperation of the distance adjustment holes and the positioning holes of the sleeves, adapts to the requirements of different soil hardness, ensures that the liquid medicine reaches the target soil layer, and achieves the effects of efficient penetration and fumigation and disinfection.

[0012] As a further improvement of this technical solution, a gap is left between the plow blades and the sleeves. A pipe sleeve is sleeved in this gap. The spraying pipe is sleeved with the pipe sleeve and an atomizing nozzle is installed at the lower end of the spraying pipe.

[0013] This setting protects the spraying pipe from being damaged by the pre-tightening of the plow blades through the pipe sleeve.

[0014] As a further improvement of this technical solution, a support plate is suspended above the rear end of the pulling pipe. A power box is fixedly connected to the top surface of the support plate. The storage battery and the water pump are both installed inside the power box. The top end of the power box is hinged with a box cover and a speed regulator is installed on the top surface of the box cover. The water pump, the storage battery and the speed regulator are electrically connected.

[0015] This setting enables the power source device to be fixedly installed; the water pump and the battery are integrated in the power box, with a compact structure and convenient maintenance.

[0016] As a further improvement of this technical solution, a liquid outlet nozzle is provided at a corner of the top surface of the medicine storage box. The water inlet of the water pump is sleeved with a liquid inlet pipe, and the liquid inlet pipe penetrates the rear side wall of the power box and is sleeved with a straight-through joint. A water pipe is inserted into the liquid outlet nozzle, and the outer end of the water pipe is sleeved and matched with the straight-through joint.

[0017] As a further improvement of this technical solution, supporting blocks are fixedly connected to the left and right sides of the medicine supporting seat. A jack is provided in the middle of the top surface of the supporting block. The shock-absorbing wheel set includes a support shaft inserted into the jack, a shock-absorbing sleeve sleeved with the support shaft in a suitable manner, a rubber wheel installed at the bottom of the support shaft, and a tension spring sleeved on the top section of the support shaft. The shock-absorbing sleeve is fixedly connected to the supporting block, and the upper and lower ends of the tension spring are respectively fixedly connected to the top end of the support shaft and the top end of the shock-absorbing sleeve.

[0018] As a further improvement of this technical solution, a heat dissipation cavity is provided in the support shaft from top to bottom, and a plurality of heat dissipation holes are provided in the top side wall of the support shaft.

[0019] As a further improvement of this technical solution, a plurality of oil storage grooves are equidistantly provided in the inner wall of the middle section of the shock-absorbing sleeve. The oil storage grooves are annular. An oil injection hole penetrating the oil storage grooves is provided in the outer wall of the shock-absorbing sleeve, and sealing rings are embedded in the inner walls of the upper and lower ends of the shock-absorbing sleeve.

[0020] The above setting improves the durability of the equipment through the cooperation of shock absorption and heat dissipation. The heat dissipation cavity and heat dissipation holes in the support shaft combine with the damping oil in the oil storage grooves to conduct heat, quickly consume the frictional heat, and achieve the shock-absorbing effect, adapting to the bumpy land environment to tow the medicine storage box.

[0021] As a further improvement of this technical solution, a sleeve ring is fixedly connected to the rear end of the pulling pipe. Bearings are sleeved at both ends of the sleeve ring, and a rotating shaft is sleeved in the central hole of the bearing. The central shaft of the drum wheel is fixedly connected with a rotating sleeve, and the rotating sleeve is tightly sleeved and matched with the rotating shaft. A plurality of wheel blades are fixedly provided at the outer end of the drum wheel.

[0022] When the towing vehicle drags the device forward, the drum wheel uses a plurality of wheel blades to grip the ground and roll along with the ground to support the device, reducing the traction resistance formed by the overall weight of the device.

[0023] As a further improvement of this technical solution, a shaft sleeve is fixedly provided on the front side wall of the top of the medicine supporting seat, and a pair of connecting sleeves are fixedly provided on the rear side wall of the top of the medicine supporting seat. The rear end of the pull rod is rotatably connected to the shaft sleeve through a pin, and a bearing is provided at the front end of the pull rod and this bearing is sleeved and matched with the rotating shaft.

[0024] When setting the towing device of the towing vehicle, the pull rod drives the medicine support seat to rotate around the bushing, and the connecting sleeve allows relative rotation between the medicine support seats, ensuring that multiple medicine storage boxes can flexibly follow the towing path.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. The soil fumigation and disinfection device based on the insecticide substitute technology completes precise trenching through adjustable plow blade depth. The plow blade adjusts the insertion depth through the cooperation of the distance adjustment hole and the sleeve positioning hole to adapt to the requirements of different soil hardnesses. Through atomized spraying and towing synchronization, high-efficiency operation is completed. After the plow blade breaks the soil and opens a trench, the atomizing nozzle evenly sprays the liquid medicine into the trench, and the liquid medicine fully penetrates with the soil turning. By combining a speed governor to adjust the water pump flow rate, the technical effects of precise utilization and low waste of the liquid medicine are achieved, ensuring that the liquid medicine reaches the target soil layer and achieving high-efficiency penetration and fumigation and disinfection effects.

[0027] 2. The soil fumigation and disinfection device based on the insecticide substitute technology expands the operation capacity through a modular medicine preparation device. The medicine storage boxes and the medicine support seats are designed in series, supporting flexible increase or decrease of the number of medicine boxes to meet the requirements of large-area operations. At the same time, the shock-absorbing wheel set is shock-absorbed through the buffer of the tension spring and the friction heat dissipation of the support shaft shock-absorbing sleeve, reducing the liquid medicine leakage caused by bumps and ensuring stable long-distance operation.

[0028] 3. The soil fumigation and disinfection device based on the insecticide substitute technology improves the durability of the equipment through the coordination of shock absorption and heat dissipation. The internal heat dissipation cavity of the support shaft combines with the heat dissipation holes to conduct heat through the damping oil in the oil storage tank, quickly consuming the friction heat and achieving the effect of shock absorption, adapting to the bumpy environment of the land to tow the medicine storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present invention in any way. Additionally, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to assist in understanding the present invention, rather than specifically defining the shapes and proportional dimensions of the components of the present invention. Those skilled in the art, under the teaching of the present invention, can select various possible shapes and proportional dimensions according to specific circumstances to implement the present invention.

[0030] Figure 1 is a schematic diagram of the overall assembly structure of the present invention;

[0031] Figure 2 is for the present invention Figure 1 top view;

[0032] Figure 3 is for the present invention Figure 1 side view;

[0033] Figure 4 is a schematic diagram of the assembly structure of the towing part of the present invention;

[0034] Figure 5 Schematic diagram of the pulling tube assembly structure of the present invention;

[0035] Figure 6 Schematic diagram of the cylinder wheel assembly structure of the present invention;

[0036] Figure 7 One of the schematic diagrams of the spraying device assembly structure of the present invention;

[0037] Figure 8 Another schematic diagram of the spraying device assembly structure of the present invention;

[0038] Figure 9 Partial exploded view of the medicine preparation device of the present invention;

[0039] Figure 10 Exploded view of the medicine support base of the present invention;

[0040] Figure 11 Full sectional view of the assembled state of the support shaft and the shock-absorbing sleeve of the present invention;

[0041] The meanings of each label in the figure are as follows:

[0042] 100. Traction part; 110. Pulling tube; 111. Collar; 112. Sleeve; 1121. Positioning hole; 113. Rotating shaft; 114. Support plate; 115. Support tube; 116. Traction block; 120. Cylinder wheel; 121. Wheel blade; 122. Rotating sleeve;

[0043] 200. Spraying device; 210. Plough blade; 211. Spacing adjustment hole; 212. Pipe sleeve; 220. Spraying pipe; 230. Water pump; 231. Liquid inlet pipe; 240. Storage battery; 250. Power box; 260. Speed regulator;

[0044] 300. Medicine preparation device; 310. Medicine storage tank; 311. Liquid outlet nozzle; 320. Medicine support base; 321. Bush; 322. Connecting sleeve; 323. Support block; 324. Insertion hole; 330. Pull rod; 340. Shock-absorbing wheel set; 341. Support shaft; 3411. Heat dissipation cavity; 3412. Heat dissipation hole; 342. Shock-absorbing sleeve; 3421. Oil storage groove; 3422. Oil injection hole; 3423. Sealing ring; 343. Rubber wheel; 344. Tension spring. Detailed implementation mode

[0045] Combined with the accompanying drawings and the description of the specific embodiments of the present invention, the details of the present invention can be more clearly understood. However, the specific embodiments of the present invention described herein are only for the purpose of explaining the present invention and cannot be understood in any way as a limitation of the present invention. Under the teaching of the present invention, the concepts of those skilled in the art are based on any possible variations of the present invention, and these should all be regarded as belonging to the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0046] The orientation or positional relationship indicated by the terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inner", "outer", etc. used in this article is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise specifically defined.

[0047] Please refer to Figures 1 - 8 As shown in the figure, the present invention provides a soil fumigation and disinfection device based on the technology of pesticide substitutes, including a traction part 100 connected to a traction vehicle, a spraying device 200 arranged on the traction part 100, and several medicine preparation devices 300. The medicine preparation devices 300 are connected to the traction part 100 and are towed to provide liquid medicine.

[0048] The traction part 100 is composed of a traction pipe 110 and a pair of drum wheels 120. The two drum wheels 120 are coaxially rotatably connected to the rear end of the traction pipe 110. A traction block 116 is fixedly connected to the front end of the traction pipe 110 so as to be connected to the traction vehicle through a pin to form a traction state. The spraying device 200 includes a pair of plow blades 210 arranged on both sides of the middle section of the traction pipe 110, a spraying pipe 220 attached to the rear side of the plow blades 210, a water pump 230 suspended above the drum wheels 120, and a storage battery 240. The water outlet of the water pump 230 is sleeved and matched with the two spraying pipes 220 through a three-way joint. The traction pipe 110 is towed by the power of the traction vehicle to move the spraying device 200 forward. The plow blades 210 break the soil to form a trench, and at the same time, the water pump 230 pumps out the liquid medicine and sprays it into the trench through the spraying pipe 220, and then penetrates into the soil for fumigation and disinfection.

[0049] Further, a collar 111 is fixedly connected to the rear end of the pulling pipe 110. Bearings are sleeved inside both ends of the collar 111, and a rotating shaft 113 is sleeved inside the central hole of the bearing. A rotating sleeve 122 is fixedly connected to the central shaft of the drum wheel 120. The rotating sleeve 122 is tightly sleeved and fitted with the rotating shaft 113. The drum wheel 120 is fitted with the rotating shaft 113 through a bearing to achieve free rotation, reduce the traction resistance, and adapt to complex terrains. A number of blade wheels 121 are fixedly arranged at the outer end of the drum wheel 120. The towing vehicle drags the device forward through the pulling pipe 110. The drum wheel 120 rolls along the ground. The bearing reduces friction to ensure smooth traction. The blade wheels 121 are designed to assist the drum wheel 120 in turning the soil and rolling forward smoothly.

[0050] Further, a cross bar is fixedly connected to the middle section of the pulling pipe 110, and sleeves 112 are fixedly connected to both ends of the cross bar. The plow blade 210 is inserted into the sleeves 112. Positioning holes 1121 are formed on the inner and outer side walls of the sleeves 112. A number of distance adjustment holes 211 are formed on the upper half side wall of the plow blade 210. Bolts are threadedly connected to the positioning holes 1121 and penetrate into the distance adjustment holes 211, so that the height of the plow blade 210 from the ground can be adjusted, and grooves with different depths can be dug according to actual requirements to adapt to different soil fumigation and disinfection requirements.

[0051] Further, a gap is left between the plow blade 210 and the sleeves 112. A pipe sleeve 212 is sleeved inside this gap. The medicine spraying pipe 220 is sleeved with the pipe sleeve 212, and an atomizing nozzle is installed at the lower end of the medicine spraying pipe 220, so that the sprayed liquid medicine is in an atomized state and is evenly sprayed onto the soil over a large area for comprehensive fumigation and disinfection, improving the penetration efficiency of the liquid medicine. The pipe sleeve 212 protects the medicine spraying pipe 220 from being crushed by the pre-tightened sleeves 112.

[0052] Further, a support plate 114 is suspended above the rear end of the pulling pipe 110. A support pipe 115 is obliquely and fixedly connected to the rear side of the top of the collar 111. The support plate 114 is fixedly connected to the support pipe 115. A power box 250 is fixedly connected to the top surface of the support plate 114. The storage battery 240 and the water pump 230 are both installed inside the power box 250. The top end of the power box 250 is hinged with a box cover, and a speed regulator 260 is installed on the top surface of the box cover. The water pump 230, the storage battery 240, and the speed regulator 260 are electrically connected. The plow blade 210 is inserted into the soil to form a groove. The water pump 230 pumps the liquid medicine, which is split by a tee joint to the medicine spraying pipes 220 on both sides, and the liquid medicine is evenly sprayed into the groove through the atomizing nozzles. The power of the water pump 230 is controlled by the speed regulator 260 to adjust the liquid medicine flow rate.

[0053] Specifically, as Figures 9 - 11As shown in the figure, the medicine preparation device 300 is composed of a medicine storage box 310 and a medicine support base 320 clamped to the bottom thereof. The water inlet of the water pump 230 is connected to the medicine storage box 310 through a water pipe. The water pump 230 extracts the liquid medicine from the medicine storage box 310. A number of medicine support bases 320 are rotatably connected back and forth, and the medicine support base 320 at the frontmost is connected to the pulling pipe 110 through a pull rod 330. A plurality of medicine storage boxes 310 are connected in series through the medicine support bases 320, and the capacity can be flexibly increased or decreased to adapt to different working areas. Shock-absorbing wheel sets 340 are installed on the left and right sides of the medicine support base 320 to assist the medicine support base 320 to move forward adaptively to the land road conditions. The shock-absorbing wheel sets 340 buffer the bumps to avoid liquid medicine leakage or damage to the medicine storage box 310.

[0054] Further, a liquid outlet nozzle 311 is provided at a corner of the top surface of the medicine storage box 310. The water inlet of the water pump 230 is sleeved with a liquid inlet pipe 231, and the liquid inlet pipe 231 penetrates the rear side wall of the power box 250 and is sleeved with a straight-through joint. A water pipe is inserted into the liquid outlet nozzle 311, and the outer end of the water pipe is sleeved and matched with the straight-through joint. The spraying pipe 220 is fixedly connected to the support plate 114 through a pipe clamp so that it is limited and the device is kept clean.

[0055] Specifically, support blocks 323 are fixedly connected to the left and right sides of the medicine support base 320. A jack 324 is provided in the middle of the top surface of the support block 323. The shock-absorbing wheel set 340 includes a support shaft 341 inserted into the jack 324, a shock-absorbing sleeve 342 fitted with the support shaft 341, a rubber wheel 343 installed at the bottom of the support shaft 341, and a tension spring 344 sleeved on the top section of the support shaft 341. The shock-absorbing sleeve 342 is fixedly connected to the support block 323. The upper and lower ends of the tension spring 344 are fixedly connected to the top end of the support shaft 341 and the top end of the shock-absorbing sleeve 342 respectively. The support shaft 341 and the shock-absorbing sleeve 342 are made of stainless steel, which has strong corrosion resistance and good heat conductivity and is suitable for humid or corrosive environments. The shock is buffered by the expansion and contraction of the tension spring 344, and the shock energy is consumed by the friction and heat dissipation between the support shaft 341 and the shock-absorbing sleeve 342 to achieve the shock-absorbing effect.

[0056] Furthermore, in order to dissipate heat in a timely manner and improve the shock absorption performance, a heat dissipation cavity 3411 is provided inside the support shaft 341 from top to bottom. A plurality of heat dissipation holes 3412 are provided on the top side wall of the support shaft 341, so that after heat is generated by the friction between the support shaft 341 and the shock absorption sleeve 342, heat can be dissipated inside and outside in a timely manner; a plurality of oil storage grooves 3421 are equidistantly provided on the inner wall of the middle section of the shock absorption sleeve 342. The oil storage grooves 3421 are annular, and damping oil is stored inside the oil storage grooves 3421 to reduce the friction damage between the support shaft 341 and the shock absorption sleeve 342, and at the same time has a heat conduction effect, so that the shock absorption sleeve 342 dissipates heat in a timely manner; an oil injection hole 3422 penetrating through the oil storage grooves 3421 is provided on the outer wall of the shock absorption sleeve 342 for replenishing damping oil into the oil storage grooves 3421, and the oil injection hole 3422 is sealed by a rubber plug; sealing rings 3423 are embedded on the inner walls of the upper and lower ends of the shock absorption sleeve 342 to prevent dust from entering the shock absorption sleeve 342, and at the same time wipe the dust on the outer wall of the support shaft 341, so that the sliding parts of the support shaft 341 and the shock absorption sleeve 342 are lubricated and clean.

[0057] Furthermore, a shaft sleeve 321 is fixedly provided on the front side wall of the top of the medicine support base 320, and a pair of connecting sleeves 322 are fixedly provided on the rear side wall of the top of the medicine support base 320. The rear end of the pull rod 330 is rotatably connected to the shaft sleeve 321 through a pin, and a bearing is provided at the front end of the pull rod 330 and this bearing is sleeved and matched with the rotating shaft 113; adjacent medicine support bases 320 are rotatably connected through the shaft sleeve 321 and the connecting sleeve 322 by pins to adapt to the up and down undulation and forward movement of the medicine support base 320, and ensure that multiple medicine storage boxes 310 follow flexibly.

[0058] When the soil fumigation and disinfection device based on the insecticide substitute technology of the present invention is in use, when the towing vehicle drags the device forward, the cylinder wheel 120 rolls with the ground to support the device, reducing the traction resistance formed by the overall weight of the device. At the same time, the plow blade 210 inserts into the soil to form a groove, and the water pump 230 is started to extract the liquid medicine from the medicine storage boxes 310 connected in series at the rear, and the liquid medicine is accurately sprayed into the groove through the atomizing nozzle at the end of the medicine spraying pipe 220; the shock is buffered by the expansion and contraction of the tension spring 344, and the shock energy is consumed by the friction and heat dissipation between the support shaft 341 and the shock absorption sleeve 342 to achieve the shock absorption effect; the device realizes the integrated operation of traction, trench opening and medicine application through the cooperative action of the plow blade 210 with adjustable depth, the modular medicine preparation device 300 and the shock absorption wheel set 340. The liquid medicine uniformly penetrates with the soil turning, completing efficient fumigation and disinfection. At the same time, the shock absorption and heat dissipation design ensures stable operation under complex terrains.

[0059] It should be noted that the fixed connection of the present invention is realized by conventional fixing means such as bolt connection or welding. The above embodiments are only for explaining the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and cannot limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A soil fumigation and disinfection device based on insecticide substitute technology, characterized in that: It includes a towing part for connecting a towing vehicle, a spraying device arranged on the towing part, and a number of medicine preparation devices. The medicine preparation devices are connected to the towing part and are towed to provide liquid medicine. The towing part consists of a towing pipe and a pair of drum wheels. The two drum wheels are coaxially rotatably connected to the rear end of the towing pipe. The spraying device includes a pair of plow blades arranged on both sides of the middle section of the towing pipe, a spraying pipe attached to the rear side of the plow blades, a water pump and a storage battery suspended above the drum wheels. The water outlet of the water pump is sleeved and matched with the two spraying pipes through a three-way joint. The medicine preparation device consists of a medicine storage tank and a medicine supporting seat clamped at the bottom thereof. The water inlet of the water pump is connected to the medicine storage tank through a water pipe. A number of medicine supporting seats are rotatably connected front and rear, and the frontmost medicine supporting seat is connected to the towing pipe through a pull rod. Shock-absorbing wheel sets are installed on both the left and right sides of the medicine supporting seat to assist the medicine supporting seat to adapt to the land road conditions and move forward.

2. The soil fumigation and disinfection device based on the insecticide substitute technology according to claim 1, wherein: Sleeves are fixedly connected to both sides of the middle section of the towing pipe. The plow blades are inserted into the sleeves. Positioning holes are provided on the inner and outer side walls of the sleeves. A number of distance-adjusting holes are provided on the upper half side wall of the plow blades. Bolts are threadedly connected to the positioning holes and penetrate into the distance-adjusting holes.

3. The soil fumigation and disinfection device based on the pesticide substitute technology according to claim 2, wherein: A gap is left between the plow blade and the sleeve. A pipe sleeve is sleeved in this gap. The spraying pipe is sleeved with the pipe sleeve and a atomizing nozzle is installed at the lower end of the spraying pipe.

4. The soil fumigation and disinfection device based on the insecticide substitute technology according to claim 3, characterized in that: A support plate is suspended above the rear end of the towing pipe. A power box is fixedly connected to the top surface of the support plate. The storage battery and the water pump are both installed inside the power box. A box cover is hinged to the top end of the power box and a speed regulator is installed on the top surface of the box cover. The water pump, the storage battery and the speed regulator are electrically connected.

5. The soil fumigation and disinfection device based on the insecticide substitute technology according to claim 4, characterized in that: A liquid outlet nozzle is provided at a corner of the top surface of the medicine storage tank. The water inlet of the water pump is sleeved with a liquid inlet pipe, and the liquid inlet pipe penetrates through the rear side wall of the power box and is sleeved with a straight-through joint. A water pipe is inserted into the liquid outlet nozzle and the outer end of the water pipe is sleeved and matched with the straight-through joint.

6. The soil fumigation and disinfection device based on the pesticide substitute technology according to claim 5, characterized in that: Blocks are fixedly connected to both the left and right sides of the medicine supporting seat. A jack is provided in the middle of the top surface of the block. The shock-absorbing wheel set includes a support shaft inserted into the jack, a shock-absorbing sleeve fitted to the support shaft, a rubber wheel installed at the bottom of the support shaft, and a tension spring sleeved on the top section of the support shaft. The shock-absorbing sleeve is fixedly connected to the block, and the upper and lower ends of the tension spring are fixedly connected to the top end of the support shaft and the top end of the shock-absorbing sleeve respectively.

7. The soil fumigation and disinfection device based on the insecticide substitute technology according to claim 6, characterized in that: A heat dissipation cavity is provided in the support shaft from top to bottom, and a number of heat dissipation holes are provided on the top side wall of the support shaft.

8. The soil fumigation and disinfection device based on the insecticide substitute technology according to claim 7, characterized in that: A number of oil storage grooves are provided at equal intervals on the inner wall of the middle section of the shock-absorbing sleeve. The oil storage grooves are annular. An oil injection hole penetrating through the oil storage grooves is provided on the outer wall of the shock-absorbing sleeve. Sealing rings are embedded on the inner walls of the upper and lower ends of the shock-absorbing sleeve.

9. The soil fumigation and disinfection device based on the insecticide substitute technology according to claim 8, characterized in that: A collar is fixedly connected to the rear end of the towing pipe. Bearings are sleeved at both ends of the collar, and a rotating shaft is sleeved in the central hole of the bearing. A rotating sleeve is fixedly connected to the central shaft of the drum wheel, and the rotating sleeve is tightly sleeved and matched with the rotating shaft. A number of wheel blades are fixedly provided at the outer end of the drum wheel.

10. The soil fumigation and disinfection device based on the insecticide substitute technology according to claim 9, characterized in that: A shaft sleeve is fixedly provided on the front side wall of the top of the medicine supporting seat. A pair of connecting sleeves are fixedly provided on the rear side wall of the top of the medicine supporting seat. The rear end of the pull rod is rotatably connected to the shaft sleeve through a pin. A bearing is provided at the front end of the pull rod and this bearing is sleeved and matched with the rotating shaft.

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