Greenhouse vegetable weeding device

Abstract

The invention discloses a greenhouse vegetable weeding device, which specifically relates to the technical field of greenhouse planting. The device comprises a frame, a motor is connected to the frame, the motor is connected to a cleaning mechanism in a transmission connection, the cleaning mechanism comprises a drag plate, a pulling mechanism is arranged above the drag plate, the pulling mechanism is connected to a crushing mechanism, the bottom of the frame is connected to the drag plate, the frame is rotatably connected to a driving wheel, the driving wheel is connected to the motor in a transmission connection, the weeds on the ground are combed by the drag plate, the weeds are pulled out by the pulling mechanism and then sent to the crushing mechanism for crushing, the weeds can be removed together with the weed roots without loosening the soil, the impact on the soil can be reduced and the probability of weed regeneration can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of greenhouse planting, and specifically to a greenhouse vegetable weeding device. Background Art

[0002] Vegetable greenhouses have an insulating effect and can grow corresponding vegetables under relatively harsh external environmental conditions. Weeding is required during vegetable planting to ensure the soil's fertility supply to the vegetables. In order to reduce the use of pesticides, manual weeding is often used in reality. However, the temperature in relatively closed greenhouses is high, and manual weeding consumes a lot of physical energy. Some weeding equipment is also used for weeding.

[0003] For example, the application document with publication number CN110226405A discloses a greenhouse weed cleaning and soil turning device, which can integrate weeding, collection and soil turning, and is suitable for the unplanted state;

[0004] However, existing weed control equipment is inconvenient for weeding during vegetable growth. If only the stems and leaves are removed, the weed seeds and roots are still scattered in the soil and are more likely to regenerate. Therefore, a device that can handle the roots and seeds is needed to perform deep weeding and reduce the probability of weed regeneration. Summary of the invention

[0005] The purpose of the present invention is to provide a greenhouse vegetable weeding device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A greenhouse vegetable weeding device comprises a frame, a motor is connected to the frame, the motor is connected to a cleaning mechanism, the cleaning mechanism comprises a drag plate, a pulling mechanism is arranged above the drag plate, the pulling mechanism is connected to a crushing mechanism, the bottom of the frame is connected to the drag plate, the frame is rotatably connected to a driving wheel, the driving wheel is connected to the motor, the weeds on the ground are combed by the drag plate, the weeds are pulled out by the pulling mechanism and then sent to the crushing mechanism for crushing, the weeds can be removed together with the weed roots without loosening the soil, the impact on the soil can be reduced and the probability of weed regeneration can be reduced.

[0008] Preferably, the drag plate includes a flat plate portion, the front end of the flat plate portion is connected to a convex arc plate, a linear array of combing grooves is arranged on the convex arc plate, and the width of the combing grooves gradually decreases from the front end to the rear end. The drag plate is arranged with a convex arc plate with an upturned front end connected to the flat plate portion, so that the drag plate can slide on the soil, and a combing groove extending to the flat plate portion is arranged on the convex arc plate, which can comb the weeds and facilitate the removal by the removal mechanism.

[0009] Preferably, the drag plate is arranged in a blade shape at the tail end of the combing groove, the drag plate is fixed on the frame, and the frame fan is provided with guard plates on both sides of the drag plate, and the end of the combing groove on the drag plate is arranged in a blade shape, so that even if the weeds cannot be completely removed, the stems and leaves of the weeds can be removed.

[0010] Preferably, the plucking mechanism includes a plucking wheel rotatably connected to the top of the drag plate, and a plurality of groups of plucking claws in an annular array are axially slidably connected to the plucking wheel, each group of plucking claws has two plucking claws, and the two plucking claws in the same group are connected by a tension spring, and a separation gap is left at the root between the plucking claws at both ends of the same group, and an arc-shaped separation rod is provided at the gap. The plucking mechanism is a plucking claw connected to the plucking wheel, and the plucking claws are tightened or relaxed by the arc-shaped separation rod and the tension spring. The weed stems and leaves are clamped during collection and the tension generated by the rotation of the plucking wheel is used to plucking the weeds, and the weeds are sent to the crushing mechanism when relaxed.

[0011] Preferably, the two plucking claws in the same group are fixedly connected to a buffer pad near one side, the width of the dividing rod gradually increases from the outer end to the inner end, and a buffer pad is arranged between the two plucking claws in the same group to prevent the plucking claws from exerting greater pressure on the stems and leaves of the weeds to clamp off the weeds and affect the removal of the entire root.

[0012] Preferably, the crushing mechanism includes a crushing groove fixed above the convex arc plate, a partition rod fixed to the edge of the crushing groove, and a crushing wheel rotatably connected to the crushing groove, so that the pulled weeds enter the crushing groove for crushing.

[0013] Preferably, the crushing wheel includes a truncated cone-shaped grinding wheel coaxially fixedly connected to the crushing drive wheel in the crushing drive cylinder, and the grinding wheel is coaxially fixedly connected to the conical spiral wheel. The crushing method adopts a conical spiral wheel arranged in the crushing groove so that the weeds can be drawn into the space between the crushing wheel and the crushing groove for grinding. The grinding treatment can destroy the root system of the weeds and the cell structure of the weed seeds, thereby reducing the probability of weed regeneration.

[0014] Preferably, the output shaft of the motor is fixedly connected to a cam, the cam is transmissionly connected to the piston rod of the driving cylinder through a connecting rod, the air outlet end of the driving cylinder is connected to a one-way valve, the one-way valve is respectively connected to the extraction transmission cylinder and the crushing transmission cylinder through a transmission air pipe, and the motor is transmission-connected to the driving cylinder to supply air to the extraction mechanism, the crushing mechanism and the driving wheel respectively. Compared with the mechanical transmission method, the weight of the whole machine can be reduced, which is convenient for operation.

[0015] Preferably, the removal transmission cylinder has the same structure as the crushing transmission cylinder, and the crushing transmission cylinder includes a cylinder body fixed to the end of the crushing mechanism, and a crushing transmission wheel is rotatably connected in the cylinder body. The sides of the crushing transmission cylinder are respectively provided with air inlets connected to the driving cylinder, and exhaust ports are also provided on the sides of the crushing transmission cylinder.

[0016] Preferably, there are two driving cylinders, and the two driving cylinders operate alternately. The driving cylinder is a double cylinder, and the double cylinders operate alternately to ensure driving continuity.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The bottom of the frame is connected to a drag plate to comb the weeds. The combed weeds are pulled out by the pulling mechanism, and then the pulled out weeds are sent to the crushing mechanism, which can remove the weeds between vegetable ridges with less impact on the soil;

[0019] 2. The carriage adopts a fixed convex arc plate to connect the flat plate and is provided with a linear array of combing grooves, which can comb the weeds in an orderly manner;

[0020] 3. The pulling mechanism uses a pulling wheel that is rotatably connected to the frame to drive the pulling claw to rotate. During the rotation of the pulling claw, the arc-shaped separation rod and the tension spring control the opening and closing of the pulling claw, which can clamp the weeds and pull them out, and then send them to the crushing mechanism to release them after pulling them out;

[0021] 4. The crushing mechanism is a conical spiral wheel that rotates in the crushing groove to roll the weeds between the grinding wheel and the grinding groove. The grinding process destroys the weed cell structure and reduces the probability of weed regeneration;

[0022] 5. The motor-cylinder drive method can reduce the use of transmission parts and reduce the weight of the whole machine. The driving cylinder is set as a double-cylinder structure for traffic operation, which can drive the driving wheel, removal mechanism, and crushing mechanism to operate continuously. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the removal mechanism of the present invention;

[0025] Figure 3 It is a cross-sectional view of the plucking wheel of the present invention;

[0026] Figure 4 It is a cross-sectional view of the present invention with the transmission cylinder removed;

[0027] Figure 5 It is a structural schematic diagram of the crushing mechanism of the present invention;

[0028] Figure 6 is a cross-sectional view of a crushing tank of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the driving cylinder of the present invention;

[0030] Figure 8 A cross-sectional view of a driving cylinder of the present invention;

[0031] In the figure: 1. frame; 11. handle; 12. guard plate; 2. battery; 3. motor; 31. cam; 4. driving cylinder; 41. connecting rod; 42. partition; 43. first piston; 44. second piston; 5. drag plate; 51. convex arc plate; 52. flat plate; 53. combing groove; 6. plucking mechanism; 61. plucking wheel; 62. plucking claw; 621. slider; 622. buffer pad; 623. tension spring; 63. plucking drive cylinder; 631. plucking drive wheel; 7. crushing mechanism; 71. crushing groove; 72. guide plate; 721. through groove; 73. crushing drive cylinder; 74. arc-shaped dividing rod; 75. grinding wheel; 76. conical spiral wheel. DETAILED DESCRIPTION

[0032] Example 1

[0033] like Figure 1 As shown, a greenhouse vegetable weeding device includes a frame 1, a motor 3 is connected to the frame 1, the motor 3 is connected to a cleaning mechanism, the cleaning mechanism includes a drag plate 5, a pulling mechanism 6 is arranged above the drag plate 5, and the pulling mechanism 6 is connected to a crushing mechanism 7; the drag plate 5 includes a flat plate portion 52, the front end of the flat plate portion 52 is connected to a convex arc plate 51, and a linear array of combing grooves 53 are arranged on the convex arc plate 51, and the width of the combing grooves 53 gradually decreases from the front end to the rear end; the drag plate 5 is arranged in a blade shape at the tail end of the combing groove 53, the drag plate 5 is fixed on the frame 1, and guard plates 12 located on both sides of the drag plate 5 are arranged on the frame 1.

[0034] When weeding between greenhouse vegetable ridges, the handle 11 of the frame 1 is held to control the direction. The front end of the frame 1 is located between the ridges. The motor 3 is powered by the battery 2. The motor 3 drives the driving wheel to rotate on the ground to apply thrust to the frame 1. When the frame 1 is moving, the drag plate 5 is located on the ground and dragged. The front end of the drag plate 5 is set as a convex arc plate 51, which is convenient for the drag plate 5 to pass over large pieces of soil and small obstacles. The convex arc plate 51 is provided with a combing groove 53 with a spacing decreasing from the front end to the rear end. When the drag plate 5 passes through an area with weeds, the roots of the weeds above the ground are guided into the combing groove. In 53, weeds can be combed. The combed weed stems and leaves are located above the carriage 5. The weeds are clamped by the pulling mechanism 6 and pulled out. The pulled out weeds are sent to the crushing mechanism 7, and are crushed and discharged back to the land as nutrients. The carriage 5 continues to move forward, and the weeds that are not pulled out are cut by the blades at the tail of the combing groove 53 and the part of the connecting plate 52 and the combing groove 53, which can effectively clean most of the weeds between the ridges. The guard plates 12 are connected on both sides of the frame 1, which can push away the leaves of vegetables on the ridges extending to the ridges to avoid damaging the vegetables.

[0035] Example 2

[0036] like Figure 1-4As shown, a greenhouse vegetable weeding device includes a frame 1, a motor 3 is connected to the frame 1, the motor 3 is transmission-connected to a cleaning mechanism, the cleaning mechanism includes a carriage 5, a pulling mechanism 6 is arranged above the carriage 5, the pulling mechanism 6 is connected to a crushing mechanism 7, the pulling mechanism 6 includes a pulling wheel 61 rotatably connected to the carriage 5, a plurality of groups of annular array pulling claws 62 are axially slidably connected to the pulling wheel 61, each group of pulling claws 62 has two, the two pulling claws 62 in the same group are connected by a tension spring 623, a separation gap is left at the root between the pulling claws 62 at both ends of the same group, and an arc-shaped separating rod 74 is arranged at the gap; the two pulling claws 62 in the same group are fixedly connected to a buffer pad 622 near one side, and the width of the separating rod gradually increases from the outer end to the inner end.

[0037] During the sliding of the carriage 5 on the ground, the plucking wheel 61 in the plucking mechanism 6 also rotates relative to the frame 1, and the plucking claws 62 are axially slidably connected to the plucking wheel 61 through the slider 621, and the slider 621 is connected to the inside of the plucking wheel 61 through the tension spring 623. The two plucking claws 62 in the same group are symmetrically arranged. When the plucking claws 62 carried by the plucking wheel 61 rotate to be located above the plucking wheel 61, at this time, the two plucking claws 62 in the same group are close to one side and fit with a thicker section of the arc-shaped dividing rod 74, so that a certain distance is left between the two plucking claws 62 in the same group, and the plucking wheel The plucking wheel 61 continues to rotate until the two plucking claws 62 in the same group rotate from the thicker section of the arc-shaped dividing rod 74 to the thinner section, and the two plucking claws 62 gradually fit together, and can clamp the weed stems and leaves that have been combed on the drag plate 5. The plucking wheel 61 continues to rotate, and an upward pulling force is generated on the weeds, so that the weeds can be pulled up by the roots. The pulled up weeds can fall on the crushing mechanism 7 when the plucking claws 62 rotate to separate again, and enter the crushing mechanism 7 for crushing. A buffer pad 622 is provided between the two plucking claws 62 in the same group, which can reduce the probability of the plucking claws 62 clamping off the weed stems and leaves.

[0038] Example 3

[0039] like Figure 1-6As shown, a greenhouse vegetable weeding device includes a frame 1, a motor 3 is connected to the frame 1, the motor 3 is connected to a cleaning mechanism, the cleaning mechanism includes a carriage 5, a plucking mechanism 6 is arranged above the carriage 5, the plucking mechanism 6 is connected to a crushing mechanism 7, the plucking mechanism 6 includes a plucking wheel 61 rotatably connected to the carriage 5, and a plurality of groups of plucking claws 62 in an annular array are axially slidably connected to the plucking wheel 61, each group of plucking claws 62 has two, and the two plucking claws 62 in the same group are connected by a tension spring 623, and the plucking claws at both ends of the same group are connected. A separation gap is left at the root between 62, and an arc-shaped separation rod 74 is arranged at the gap; two extraction claws 62 in the same group are fixedly connected to a buffer pad 622 near one side, and the width of the separation rod gradually increases from the outer end to the inner end. The crushing mechanism 7 includes a crushing groove 71 fixed above the convex arc plate 51, and the separation rod is fixed to the edge of the crushing groove 71, and is located in the crushing groove 71 and rotatably connected to the crushing wheel. The crushing wheel includes a truncated cone-shaped grinding wheel 75 coaxially fixedly connected to the crushing transmission wheel in the crushing transmission cylinder 73, and the grinding wheel 75 is coaxially fixedly connected to the conical spiral wheel 76.

[0040] The crushing mechanism 7 includes a guide plate 72 fixed to the frame 1, and a through slot 721 is provided on the guide plate 72 for the plucking claw 62 to pass through. The front end of the guide plate 72 is connected to the crushing slot 71. The pulled weeds fall on the guide plate 72 with the front end tilted downward, and the plucking claw 62 can play a certain shearing effect on the weeds when passing through the through slot 721, so that the weeds falling on the guide plate 72 are divided into multiple sections, and the weeds slide along the guide plate 72 into the crushing slot 71. While the frame 1 is moving, the grinding wheel 75 and the conical spiral wheel 76 in the crushing slot 71 rotate, and the weeds entering the crushing slot 71 are gradually transported by the conical spiral wheel 76. The weed roots and grass seed cells that have been ground are destroyed, so that the probability of regeneration of the treated weeds after returning to the field is reduced, thereby reducing the possibility of subsequent weed regeneration and reducing the difficulty of subsequent weeding.

[0041] Example 4

[0042] like Figure 1-8As shown, a greenhouse vegetable weeding device includes a frame 1, a motor 3 is connected to the frame 1, the motor 3 is transmission-connected to a cleaning mechanism, the cleaning mechanism includes a drag plate 5, a plucking mechanism 6 is arranged above the drag plate 5, the plucking mechanism 6 is connected to a crushing mechanism 7, the output shaft of the motor 3 is fixedly connected to a cam 31, the cam 31 is transmission-connected to a piston rod of a driving cylinder 4 through a connecting rod 41, the air outlet end of the driving cylinder 4 is connected to a one-way valve, the one-way valve is respectively connected to a plucking transmission cylinder 63 and a crushing transmission cylinder 73 through a transmission air pipe, the plucking transmission cylinder 63 and the crushing transmission cylinder 73 have the same structure, the crushing transmission cylinder 73 includes a cylinder body fixed to the end of the crushing mechanism 7, a crushing transmission wheel is rotationally connected to the cylinder body, air inlets connected to the driving cylinder 4 are respectively arranged on the sides of the crushing transmission cylinder 73, and exhaust ports are arranged on the sides of the crushing transmission cylinder 73, there are two driving cylinders 4, and the two driving cylinders 4 operate alternately.

[0043] The cam 31 connected to the motor 3 is respectively connected to the first piston 43 and the second piston 44 of the driving cylinder 4 through the connecting rod 41. The driving cylinder 4 is divided into two chambers by the partition 42. The air outlet opening of the chamber where the first piston 43 is located is at the bottom, and the air outlet of the chamber where the second piston 44 is located is arranged on the upper side. Therefore, when the cam 31 rotates, the first piston 43 and the second piston 44 rise synchronously, and the air flow discharged from the chamber where the second piston 44 is located drives the driving wheel, the removal mechanism 6, and the crushing mechanism 7 to operate, and the lower part of the first piston 43 is inflated and energy is stored; when the first piston 43 and the second piston 44 descend synchronously, the air supply in the chamber where the first piston 43 is located drives the driving wheel, the removal mechanism 6, and the crushing mechanism 7 to operate, and the second chamber is inflated and energy is stored. Compared with the mechanical transmission method, the pressure drive method can reduce the use of mechanical transmission parts and the weight of the machine body, and can also achieve multi-point transmission. A one-way valve that only takes in air but not exhausts air is respectively arranged at the bottom of the chamber where the first piston 43 is located and the top of the chamber where the second piston 44 is located, so that air can be pumped out during the energy storage process in the cylinder. The double-cylinder drive method ensures the continuity of energy supply. The plucking transmission cylinder 63 connected to the side of the plucking mechanism 6, the crushing transmission cylinder 73 connected to the side of the crushing mechanism 7, and the driving transmission cylinder connected to the side of the pushing wheel are respectively fixed on the frame 1, and the plucking transmission wheel 631, the crushing transmission wheel, and the pushing transmission wheel inside are all pneumatic wheels, and the plucking transmission wheel 631, the crushing transmission wheel, and the pushing transmission wheel are coaxially fixedly connected to the plucking wheel 61, the grinding shaft, and the pushing wheel respectively.

Claims

1. A greenhouse vegetable weeding device, characterized in that: The machine comprises a frame (1), a motor (3) is connected to the frame (1), the motor (3) is in driving connection with a cleaning mechanism, the cleaning mechanism comprises a drag plate (5), a pulling mechanism (6) is arranged above the drag plate (5), and the pulling mechanism (6) is connected with a crushing mechanism (7); The carriage (5) comprises a flat plate portion (52), the front end of the flat plate portion (52) is connected to a convex arc plate (51), a linear array of combing grooves (53) is arranged on the convex arc plate (51), and the width of the combing grooves (53) gradually decreases from the front end to the rear end; The carriage (5) is located at the rear end of the combing groove (53) and is arranged in a blade shape. The carriage (5) is fixed on the frame (1). The frame (1) is provided with guard plates (12) located on both sides of the carriage (5); The plucking mechanism (6) comprises a plucking wheel (61) rotatably connected to the top of the drag plate (5); a plurality of groups of plucking claws (62) in an annular array are axially slidably connected to the plucking wheel (61); each group of plucking claws (62) has two plucking claws; the two plucking claws (62) in the same group are connected by a tension spring (623); a separation gap is left at the root between the plucking claws (62) at both ends of the same group, and an arc-shaped separation rod (74) is provided at the gap; The two extraction claws (62) in the same group are fixedly connected to a buffer pad (622) near one side, and the width of the separation rod increases gradually from the outer end to the inner end; The crushing mechanism (7) comprises a crushing groove (71) fixed above the convex arc plate (51), a partition rod fixed to the edge of the crushing groove (71), and located in the crushing groove (71) and rotatably connected to a crushing wheel; The crushing wheel comprises a truncated cone-shaped grinding wheel (75) coaxially fixedly connected to the crushing driving wheel in the crushing driving cylinder (73); the grinding wheel (75) is coaxially fixedly connected to the conical spiral wheel (76); The output shaft of the motor (3) is fixedly connected to the cam (31), the cam (31) is drivingly connected to the piston rod of the driving cylinder (4) through a connecting rod (41), the air outlet end of the driving cylinder (4) is connected to a one-way valve, and the one-way valve is respectively connected to the extraction driving cylinder (63) and the crushing driving cylinder (73) through a transmission air pipe.

2. A greenhouse vegetable weeding device according to claim 1, characterized in that: The pulling out transmission cylinder (63) has the same structure as the crushing transmission cylinder (73). The crushing transmission cylinder (73) comprises a cylinder body fixed to the end of the crushing mechanism (7), a crushing transmission wheel is rotatably connected in the cylinder body, and air inlets connected to the driving cylinder (4) are respectively arranged on the side of the crushing transmission cylinder (73), and an exhaust port is also arranged on the side of the crushing transmission cylinder (73).

3. A greenhouse vegetable weeding device according to claim 2, characterized in that: There are two driving cylinders (4), and the two driving cylinders (4) operate alternately.

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