Small greenhouse radish harvester

Abstract

The small greenhouse radish harvester comprises a harvesting mechanism, a packaging mechanism, a soil breaking mechanism and a power mechanism, the harvesting mechanism comprises a pulling module, a cutting module and an auxiliary pulling module, and the packaging mechanism comprises a conveying module, a soil removing module and a packaging module. The soil breaking mechanism loosens soil, the pulling module is assisted to lift radishes upwards, the pulling module pulls the radishes out, the cutting module cuts off radish leaves, the conveying module conveys the radishes to the soil removing module to remove soil, and the packaging module packages the radishes. The power mechanism enables the harvester to move. Through automatic and mechanical means, the harvesting efficiency of the radishes is remarkably improved, meanwhile, the damage rate of the radishes is reduced, and the harvesting efficiency and quality of the radishes are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, in particular to a small greenhouse radish harvester. Background Art

[0002] my country boasts a significant radish production, widespread distribution, and significant export volume. Radishes also possess high nutritional value. However, harvesting radishes relies primarily on manual labor, resulting in low efficiency and poor quality. Existing machines offer limited functionality, and no integrated planting and harvesting machine has yet emerged. Therefore, developing a radish harvester tailored to my country's actual working environment would significantly advance the mechanization and automation of radish harvesting.

[0003] The United States and other European and American countries began developing carrot harvesting machinery early in the mechanization of radish production, achieving mechanized harvesting in the 1930s and 1940s, making the technology relatively mature. However, due to the vast land, sparse population, large-scale cultivation, and predominantly plain terrain in these countries, their radish harvesting machinery is often bulky and unsuitable for the small-plot cultivation model in southwest my country. In contrast, Asian countries, such as Japan, which have similar crop cultivation scales to my country, have developed radish harvesting machinery that emphasizes flexibility and adaptability, making it more suitable for my country's small-plot cultivation environment. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a small greenhouse radish harvester to solve the problem of the bulky size of radish planting-related machinery in the prior art.

[0005] To achieve the above-mentioned purpose and other related purposes, the technical solution of this utility model is as follows:

[0006] A small greenhouse radish harvester, comprising:

[0007] A harvesting mechanism, a packaging mechanism, a soil-breaking mechanism and a power mechanism, wherein the soil-breaking mechanism is placed in front of the power mechanism, the packaging mechanism is placed above the power mechanism, the harvesting mechanism is placed in front of the packaging mechanism and above the power mechanism, the harvesting mechanism, the packaging mechanism, the soil-breaking mechanism and the power mechanism are all installed on a frame, the harvesting mechanism is used to harvest radishes, the packaging mechanism is used to package radishes, the soil-breaking mechanism is used to loosen the soil, and the power mechanism is used to move the harvester as a whole.

[0008] Optionally, the harvesting mechanism includes an extraction module, a cutting module, an auxiliary extraction module and two cantilever brackets, the extraction module is installed obliquely on the cantilever bracket, the cutting module is installed at the rear end of the cantilever bracket, and the auxiliary extraction module is installed at the front end of the cantilever bracket.

[0009] Optionally, the extraction module includes a first chain, a first gear set and a first motor, and the first motor drives the first chain through the first gear set, wherein the first chains are two oppositely arranged, and the two first chains clamp and transport the radishes.

[0010] Optionally, the cutting module includes a second motor, a second gear set, a connecting rod and a blade. The second motor drives the connecting rod to reciprocate through the second gear set. The blade is installed on the connecting rod and reciprocates with the connecting rod to cut the radish.

[0011] Optionally, the auxiliary extraction module includes a third motor, a third gear set, a third chain and two limit blocks. The third motor drives the third chain through the third gear set. The two limit blocks are respectively arranged on two cantilever brackets. The third chain is arranged between the two cantilever brackets. The two limit blocks are aligned with the ends of the two first chains.

[0012] Optionally, the conveying direction of the third chain forms an angle of 70° with the conveying direction of the first chain, and the conveying direction of the third chain forms an angle of 120° with the limit block.

[0013] Optionally, the packaging mechanism includes a conveying module, a soil removing module, and a packaging module. The conveying module is fixedly connected to the frame, and the packaging module is placed below the conveying module; the soil removing module includes two brush rollers and a fifth gear set. The two brush rollers rotate relative to each other under the action of the fifth gear set, and the radish passes between the two brush rollers to complete soil removal.

[0014] Optionally, the conveying module includes a fourth motor, a fourth gear set, a guide plate, a fourth chain, a transmission belt, a laser rangefinder and two limit plates, the two limit plates are installed on both sides of the conveyor belt, the fourth motor drives the fourth chain through the fourth gear set and drives the conveyor belt to convey, the guide plate is installed at the front end of the conveyor belt to guide the radish onto the conveyor belt, and the laser rangefinder is arranged above the transmission belt.

[0015] Optionally, the packaging module includes a pressure plate, a spring, a worm, a slide rail, a gear box and a loading plate, as well as a coaxially arranged worm, a bearing, and a bearing sleeve. A worm slider is mounted on the worm, the spring is connected to the worm slider via the bearing, the pressure plate is fixed to the spring, and the slide rail is placed on both sides of the loading plate; the slide rail is connected to the gear box, and a U-shaped hook is installed on the outer side of the gear box near the loading plate. The rear side of the loading plate on the frame is a falling channel for packaged radishes.

[0016] Optionally, the soil-breaking mechanism includes two soil-breaking rods, and the two soil-breaking rods rotate relative to each other to penetrate deep into the soil to break the soil.

[0017] In the present invention, a small greenhouse radish harvester is provided. The soil is loosened by a soil-breaking mechanism, and the radish is pulled out, defoliated, and transported by a harvesting mechanism. The radish is then packaged by a packaging mechanism. The power mechanism enables the harvester to move to a designated location and transport the harvested radishes. The cooperation of the soil-breaking mechanism, the harvesting mechanism, the packaging mechanism, and the power mechanism enables the harvester to achieve fully automatic harvesting of radishes, significantly improving the harvesting efficiency of radishes, while reducing the damage rate of radishes and improving the efficiency and quality of radish harvesting. At the same time, the harvester is composed of various mechanisms, and the overall structure is flexible and the mechanical structure is lightweight. It is agile in use and can harvest radishes flexibly. It can harvest radishes grown in small greenhouses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a small greenhouse radish harvester according to an example of the present invention;

[0019] Figure 2 This is a structural diagram of a harvesting mechanism on a small greenhouse radish harvester according to an example of the present invention;

[0020] Figure 3 This is a structural diagram of the extraction module on the harvesting mechanism of the utility model;

[0021] Figure 4 This is a structural diagram of the cutting module on the harvesting mechanism of the utility model;

[0022] Figure 5 This is a structural diagram of the auxiliary extraction module on the harvesting mechanism of the utility model;

[0023] Figure 6 This is a structural diagram of a packaging mechanism on a small greenhouse radish harvester according to an example of the present invention;

[0024] Figure 7 This is a structural diagram of the conveying module on the packaging mechanism of the utility model;

[0025] Figure 8 This is a structural diagram of the soil removal module on the packaging mechanism of the utility model;

[0026] Figure 9 This is a structural diagram of the packaging module on the packaging mechanism of the utility model;

[0027] Figure 10 The utility model is a structural diagram of a soil-breaking mechanism and a power mechanism on a small greenhouse radish harvester according to an example of the present invention.

[0028] The description of the reference numerals in the embodiments includes:

[0029] Harvesting mechanism 1, extraction module 11, first driving gear shaft 111, first driving gear 112, first driven gear 113, first driven gear shaft 114, first motor 116, cutting module 12, second driving gear 121, second driving gear shaft 122, connecting rod 123, blade 124, auxiliary extraction module 13, limit block 131, second chain 132, third driving gear 133, third driving gear shaft 134, third transmission gear 135, third transmission gear shaft 136, fourth transmission gear 137, third driven gear 138, third driven gear shaft 139, cantilever bracket 14,

[0030] Packing mechanism 2, conveying module 21, guide plate 211, baffle 212, fourth chain 213, fourth driven gear 214, fourth driving gear 215, fifth driven gear 216, fifth driven gear shaft 217, laser rangefinder 218, soil removal module 22, brush roller 221, fifth driving gear 222, sixth driven gear 223, seventh driven gear 224, packing module 23, worm 231, worm slider 232, bearing 233, bearing sleeve 234, spring 235, pressure plate 236, loading plate 237, slide rail 238,

[0031] Breaking mechanism 3, seventh driving gear 31, eighth driven gear 32, breaking rod 33,

[0032] Power mechanism 4 , eighth driving gear 41 , sixth chain 42 , ninth driven gear 43 , wheel 44 . DETAILED DESCRIPTION

[0033] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0034] It should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present invention to those skilled in the art. In the accompanying drawings, like reference numerals represent like components throughout.

[0035] The utility model is a small greenhouse radish harvester, combined with reference to Figures 1 to 10The harvester includes a harvesting mechanism 1, a packaging mechanism 2, a soil-breaking mechanism 3 and a power mechanism 4. The soil-breaking mechanism 3 is placed in front of the power mechanism 4, and the packaging mechanism 2 is placed above the power mechanism 4. The harvesting mechanism 1 is placed in front of the packaging mechanism 2 and above the power mechanism 4. The harvesting mechanism 1, the packaging mechanism 2, the soil-breaking mechanism 3 and the power mechanism 4 are all installed on the frame. The harvesting mechanism 1 is used to pull out, remove leaves and transport radishes, the packaging mechanism 2 is used to pack radishes, the soil-breaking mechanism 3 is used to loosen the soil, and the power mechanism 4 is used to move the harvester as a whole.

[0036] like Figure 1 As shown, the soil-breaking mechanism 3 is placed in front of the power mechanism 4, the packaging mechanism 2 is placed above the power mechanism 4, and the harvesting mechanism 1 is placed in front of the packaging mechanism 2 and supported by the power mechanism 4. The soil-breaking mechanism 3 loosens the soil, the harvesting mechanism 1 pulls out the greenhouse radishes, removes the leaves, and transfers them to the packaging mechanism 2. The packaging mechanism 2 counts, removes the soil, packages, and places the greenhouse radishes, and the power mechanism 4 drives the machine.

[0037] In this scheme, the harvesting of radishes by a harvester is taken as the benchmark, with one end of the harvesting being the front end and the other end being the rear end.

[0038] In some embodiments, the harvesting mechanism 1 includes a picking module 11, a cutting module 12, an auxiliary picking module 13, and two cantilever supports 14. The picking module 11 is obliquely mounted on the cantilever supports 14, the cutting module 12 is mounted on the rear end of the cantilever supports 14, and the auxiliary picking module 13 is mounted on the front end of the cantilever supports 14. Figure 2 As shown, the harvesting mechanism 1 includes a harvesting module 11, a cutting module 12, and an auxiliary harvesting module 13. Each of these modules is secured to two cantilever supports 14, with the auxiliary harvesting module 13 mounted at the front end and the cutting module 12 at the rear end. In the harvesting mechanism 1, the connecting rod 123 and blade 124 of the cutting module 12 are connected by a cylindrical pin, forming a crank-rocker mechanism under a stopper 131 for reciprocating motion.

[0039] In some embodiments, the picking module 11 includes a first chain, a first gear set and a first motor 116. The first motor 116 drives the first chain through the first gear set. The first chains are two oppositely arranged. The two first chains clamp and transport the radish. Figure 3As shown, the extraction module 11 includes two first chains with 225 sections, and the first gear set includes a first driving gear shaft 111, a first driving gear 112, a first driven gear 113, and a first driven gear shaft 114. The first driving gear 112 is connected to the rotating shaft of the first motor 116. The first motor 116 is installed on the top of the cantilever bracket 14 through a motor mounting seat. The first driving gear 112 and the first driven gear 113 are connected through a first chain with 225 sections. The two first chains are symmetrically distributed on both sides of the two cantilever brackets 14. When the extraction module 11 is used, the first driving gear shaft 111 is driven by the first motor 116 to rotate, and then the first driven gear 113 and the first driven gear shaft 114 are driven to rotate through the first chain with 225 sections, thereby achieving the clamping and transmission of the radish. The entire extraction module 11 is supported by the cantilever bracket 14. The first chain in the extraction module 11 has a built-in spring 235 roller.

[0040] In some embodiments, the cutting module 12 includes a second motor, a second gear set, a connecting rod 123 and a blade 124. The second motor drives the connecting rod 123 to reciprocate through the second gear set. The blade 124 is installed on the connecting rod 123 and reciprocates with the connecting rod 123 to cut the radish. Figure 4 As shown, the second gear set includes a second driving gear 121 and a second driving gear shaft 122. The first driving gear 112 is connected to the rotating shaft of the first motor 116. The second motor is installed on the front middle end of the cantilever bracket 14 on one side through a motor mounting seat. A connecting rod 123 is fixedly connected to the first driving gear 112 of the blade 124 with a cylindrical pin. The blade 124 is fixedly connected to the two connecting rods 123 with cylindrical pins to form a crank slider mechanism. When in use, the second motor drives the second driving gear shaft 122 to rotate and then drives the first driving gear 112 to rotate, and then drives the blade 124 to move through the connecting rod 123, forming a crank slider mechanism as a whole, so that the blade 124 performs reciprocating motion to achieve cutting of the radish.

[0041] In some embodiments, the auxiliary extraction module 13 includes a third motor, a third gear set, a third chain, and two limit blocks 131. The third motor drives the third chain through the third gear set. The two limit blocks 131 are respectively set on the two cantilever brackets 14. The third chain is set between the two cantilever brackets 14. The two limit blocks 131 are aligned with the ends of the two first chains. Figure 5As shown, the auxiliary extraction module 13 includes two limit blocks 131 and a 30-section third chain, the third gear set includes a third driving gear 133, a third driving gear shaft 134, a third transmission gear 135, a third transmission gear shaft 136, a fourth transmission gear 137, a third driven gear 138, and a third driven gear shaft 139. The third motor is mounted on the tail end of the cantilever bracket 14 through a motor mounting base, the third transmission gear 135 and the fourth transmission gear 137 are both mounted on the third transmission gear shaft 136, the third transmission gear 135 is directly engaged with the third driving gear 133, and the fourth transmission gear 137 is connected to the third driven gear 138 through a 30-section third chain. The two limit blocks 131 are mounted on both sides of the tail end of the cantilever bracket 14. During specific use, the third motor drives the third driving gear shaft 134, which in turn drives the third driving gear 133 to rotate, meshing with the third transmission gear 135 to drive the third transmission gear shaft 136 to rotate, and then drives the fourth transmission gear 137 to rotate through the third chain to drive the third driven gear 138 and the third driven gear shaft 139 to rotate to achieve the auxiliary extraction function.

[0042] In some embodiments, the conveying direction of the third chain forms an angle of 70° with the conveying direction of the first chain, and the conveying direction of the third chain forms an angle of 120° with the limit block 131. Figure 2 As shown, such a configuration is more conducive to the cooperation between the picking module 11 and the auxiliary picking module 13 to harvest the radish.

[0043] In some embodiments, the packaging mechanism 2 includes a conveying module 21, a soil removal module 22, and a packaging module 23. The conveying module 21 is fixedly connected to the frame, and the packaging module 23 is placed below the conveying module 21. The soil removal module 22 includes two brush rollers 221 and a fifth gear set. The two brush rollers 221 rotate relative to each other under the action of the fifth gear set, and the radish passes between the two brush rollers to complete soil removal. Figure 6 As shown, when in use, the conveying module 21 is fixed to the frame, the soil removal module 22 is placed behind the conveying module 21, and the packaging module 23 is placed below the conveying module 21. Figure 8As shown, the soil removal module 22 includes two brush rollers 221, a driving gear, a driving gear shaft, a transmission gear, a transmission gear shaft, a driven gear, and a driven gear shaft. The brush rollers 221 are placed side by side on the rear side of the conveyor belt. The driving gear is connected to the rotating shaft of the motor. The motor is mounted on the frame through a motor mounting seat. The driving gear is directly meshed with the transmission gear, and the transmission gear is directly meshed with the driven gear. The fifth gear set includes a fifth driving gear 222, a sixth driven gear 223, and a sixth driven gear 223. When in use, the motor drives the fifth driving gear 222 shaft, which in turn drives the meshing fifth driving gear 222 and the sixth driven gear 223 to rotate. The sixth driven gear 223 meshes with the seventh driven gear 224, driving the two brush rollers 221 to reverse and remove soil and transport downward.

[0044] In some embodiments, the conveying module 21 includes a fourth motor, a fourth gear set, a guide plate 211, a fourth chain 213, a transmission belt, a laser rangefinder 218 and two limit plates. The two limit plates are installed on both sides of the conveyor belt. The fourth motor drives the fourth chain 213 through the fourth gear set and drives the conveyor belt to convey. The guide plate 211 is installed at the front end of the conveyor belt to guide the radish to the conveyor belt. The laser rangefinder 218 is arranged above the transmission belt.

[0045] like Figure 7 As shown, the conveyor module 21 includes a guide plate 211, two stop plates, a 42-section fourth chain 213, a conveyor belt, a driving gear, a driving gear shaft, two transmission gears, a transmission gear shaft, a driven gear, and a driven gear shaft. The stop plates are symmetrically mounted on either side of the conveyor belt. The driving gear is connected to the rotating shaft of the motor, which is mounted on the frame via a motor mounting bracket. Both transmission gears are mounted on the transmission gear shaft. One transmission gear is connected to the driving gear via a 42-section fourth chain 213, while the inner transmission gear is connected to the driven gear via a conveyor belt. A laser rangefinder 218 is positioned above the conveyor belt. During specific use, the fourth motor drives the fourth driving gear 215 shaft and then drives the fourth driving gear 215 to rotate, and then drives the fifth driven gear 216 through a section of the fourth chain 213, and then drives the fifth driven gear shaft 217 to rotate, and then drives the transmission belt and the fourth driven gear 214 to move. During this process, the guide plate 211 guides the radishes collected by the harvesting module to the conveyor belt, and the laser rangefinder 218 is placed above the conveyor belt to measure the distance change and count the radishes transmitted.

[0046] In some embodiments, the packaging module 23 includes a pressure plate 236, a spring 235, a worm 231, a slide rail 238, a gear box, and a carrier plate 237. The coaxially arranged worm 231, bearing 233, and bearing sleeve 234 are also included. A worm slider 232 is sleeved on the worm 231. The spring 235 is connected to the worm slider 232 via the bearing 233. The pressure plate 236 is fixedly connected to the spring 235. The slide rails 238 are positioned on either side of the carrier plate 237. The slide rails 238 are connected to the gear box. A U-shaped hook is mounted on the outer side of the gear box near the carrier plate 237. The rear side of the carrier plate 237 on the frame serves as a drop channel for the packaged radishes. Two slide rails 238 are positioned on either side of the carrier plate 237. The carrier plate 237 has a rotation angle of 0 to -40 degrees from horizontal. A hot melt strip is mounted on the pressure plate 236, and a reduction motor is positioned on one side of the carrier plate 237. The bearing 233 in the packing module 23 is assembled in the bearing sleeve 234, and the bearing 233 is connected to the connecting rod 123. The slider is sleeved on the screw rod and limited to keep it vertical.

[0047] The packaging module 23 includes two worms 231, a worm slider 232, a bearing 233, a bearing sleeve 234, two springs 235, a pressure plate 236, two driving gears, a driving gear shaft, a driven gear, a driven gear shaft, a loading plate 237, two slide rails 238, a gearbox, a driving gear, a driving gear shaft, a driven gear, a driven gear shaft, and a 32-link chain. The worm 231, the bearing 233, and the bearing sleeve 234 are coaxially mounted. The worm slider 232 is mounted on the worm 231. The spring 235 is connected to the worm slider 232 via the bearing 233. The pressure plate 236 is fixedly connected to the spring 235. The driving gear is connected to the rotating shaft of the motor. The motor is mounted on the frame via a motor mounting base. The driving gear directly meshes with the driven gear. The motor is mounted on the frame via a motor mounting base. The driving gear acting on the loading plate 237 is connected to the rotating shaft of the motor, which is mounted on the frame via a motor mounting bracket. The driving gear and the driven gear are connected by a 32-link chain, and the motor is mounted on the frame via a motor mounting bracket. Slide rails 238 are placed on both sides of the loading plate 237, and gear boxes are placed on them respectively, driven by the motor.

[0048] like Figure 9As shown, during specific use, the motors on both sides drive the driving gear shaft and then drive the driving gear to engage with the driven gear, and the two worms 231 are connected by the bearing 233 fixed to the bearing sleeve 234, driving the worm 231 to rotate and drive the worm slider 232 to move, so that the spring 235 is stretched or compressed to make the pressure plate 236 move vertically to seal the package, and the reduction motor drives the driving gear to rotate through the chain to drive the driven gear and the driven gear shaft and then drive the loading plate 237 to rotate around the fixed axis, and the slide rails 238 are placed on both sides of the loading plate 237 to engage with the gear box and be driven by the motor to reciprocate along the slide rails 238, and the U-shaped hook is installed on the gear box near the loading plate 237 to hook the package and drive the package movement.

[0049] In some embodiments, the soil breaking mechanism 3 includes two soil breaking rods 33, which rotate relative to each other and penetrate deep into the soil to break the soil. Figure 10 As shown, the groundbreaking mechanism 3 includes a driving gear, a driving gear shaft, two driven gears, a driven gear shaft, and two groundbreaking rods 33. During use, the motor drives the driving gear shaft, which in turn drives the seventh driving gear 31 to rotate, which in turn drives the eighth driven gear 32 via a chain, enabling the groundbreaking rods 33 to achieve the groundbreaking function. The power mechanism 4 includes two driving gears, a driving gear shaft, two driven gears, a driven gear shaft, two chains, and four tires. The motor drives the driving gear shaft, which in turn drives the eighth driving gear 41 to rotate, which in turn drives the ninth driven gear 43 via a sixth chain 42, which in turn drives the shaft of the ninth driven gear 43, which in turn drives the wheels 44.

[0050] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A small greenhouse radish harvester, characterized by: It includes a harvesting mechanism, a packaging mechanism, a soil-breaking mechanism and a power mechanism. The soil-breaking mechanism is placed in front of the power mechanism, the packaging mechanism is placed above the power mechanism, the harvesting mechanism is placed in front of the packaging mechanism and above the power mechanism, the harvesting mechanism, the packaging mechanism, the soil-breaking mechanism and the power mechanism are all installed on a frame, the harvesting mechanism is used to pull out, remove leaves and transport radishes, the packaging mechanism is used to pack radishes, the soil-breaking mechanism is used to loosen the soil, and the power mechanism is used to move the harvester as a whole.

2. The small greenhouse radish harvester according to claim 1, characterized in that: The harvesting mechanism includes an extraction module, a cutting module, an auxiliary extraction module and two cantilever supports. The extraction module is installed obliquely on the cantilever support, the cutting module is installed at the rear end of the cantilever support, and the auxiliary extraction module is installed at the front end of the cantilever support.

3. The small greenhouse radish harvester according to claim 2, characterized in that: The extraction module includes a first chain, a first gear set and a first motor. The first motor drives the first chain through the first gear set. The first chains are two oppositely arranged. The two first chains clamp and transport the radishes.

4. The small greenhouse radish harvester according to claim 3, characterized in that: The cutting module includes a second motor, a second gear set, a connecting rod and a blade. The second motor drives the connecting rod to reciprocate through the second gear set. The blade is installed on the connecting rod and reciprocates with the connecting rod to cut the radish.

5. The small greenhouse radish harvester according to claim 4, characterized in that: The auxiliary extraction module includes a third motor, a third gear set, a third chain and two limit blocks. The third motor drives the third chain through the third gear set. The two limit blocks are respectively arranged on two cantilever brackets. The third chain is arranged between the two cantilever brackets. The two limit blocks are aligned with the ends of the two first chains.

6. The small greenhouse radish harvester according to claim 5, characterized in that: The conveying direction of the third chain forms an angle of 70° with the conveying direction of the first chain, and the conveying direction of the third chain forms an angle of 120° with the limit block.

7. The small greenhouse radish harvester according to claim 1, characterized in that: The packaging mechanism includes a conveying module, a soil removing module, and a packaging module. The conveying module is fixedly connected to the frame, and the packaging module is placed below the conveying module; the soil removing module includes two brush rollers and a fifth gear set. The two brush rollers rotate relative to each other under the action of the fifth gear set, and the radish passes between the two brush rollers to complete soil removal.

8. The small greenhouse radish harvester according to claim 7, characterized in that: The conveying module includes a fourth motor, a fourth gear set, a guide plate, a fourth chain, a transmission belt, a laser rangefinder and two limit plates. The two limit plates are installed on both sides of the conveyor belt. The fourth motor drives the fourth chain through the fourth gear set and drives the conveyor belt to convey. The guide plate is installed at the front end of the conveyor belt to guide the radish onto the conveyor belt. The laser rangefinder is arranged above the transmission belt.

9. The small greenhouse radish harvester according to claim 8, characterized in that: The packaging module includes a pressure plate, a spring, a worm, a slide rail, a gear box and a loading plate, as well as a coaxially arranged worm, a bearing, and a bearing sleeve. A worm slider is sleeved on the worm, the spring is connected to the worm slider via the bearing, the pressure plate is fixed to the spring, and the slide rails are placed on both sides of the loading plate; the slide rails are connected to the gear box, and a U-shaped hook is installed on the outer side of the gear box near the loading plate. The rear side of the loading plate on the frame is a falling channel for packaged radishes.

10. A small greenhouse radish harvester according to any one of claims 1 to 9, characterized in that: The soil-breaking mechanism comprises two soil-breaking rods, which rotate relative to each other and penetrate deep into the soil to break the soil.

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