Walking type orchard weeding equipment

Abstract

The utility model belongs to the technical field of weeding equipment, and discloses walking orchard weeding equipment which comprises a frame, a walking mechanism is arranged at the bottom of the frame, a power mechanism, a transmission mechanism, a control mechanism and a weeding mechanism are arranged on the frame, the weeding mechanism comprises a fixing pipe fixedly arranged on the lower portion of the frame, and a weeding cutter shaft is rotationally arranged in the fixing pipe; the top end of the weeding cutter shaft is connected with the transmission mechanism, the bottom end of the weeding cutter shaft extends out of the fixing pipe and is provided with a horizontally-arranged main blade, the middle of the main blade is fixed to the weeding cutter shaft, the two ends of the main blade are each rotationally provided with an auxiliary blade, and the main blade and the auxiliary blades are higher than the bottom face of the walking mechanism. The weeding cutter shaft, the main blades and the auxiliary blades are arranged, a certain distance exists between the blades and the ground, only the leaf diameter of weeds on the ground can be cut off in the weeding process, the surface layer of soil and the root system of the weeds cannot be damaged, the ecological environment of a plantation is protected, and therefore the purposes of reducing water and soil loss and storing water and preserving soil moisture are achieved.

Description

Technical Field

[0001] This utility model relates to the field of weeding equipment technology, and in particular to a hand-held orchard weeding device. Background Technology

[0002] Due to limitations in agronomy and growing conditions, blueberry plantations have a low level of mechanization in weeding operations. Some plantations are located in hilly and mountainous areas with rugged terrain, making it impossible for large weeding machinery to operate within the plantations. Portable weeding machinery is labor-intensive and inefficient, failing to meet the needs of weeding operations.

[0003] Some blueberry plantations use mini-tillers for weeding. These mini-tillers work by rotating blades to break up weeds in the soil. However, blueberry plantations need to retain some weeds to maintain the plantation's ecosystem. The roots of the weeds help to strengthen the topsoil, reducing soil erosion and conserving moisture. Therefore, using mini-tillers for weeding is not conducive to the ecological development of blueberry plantations. Thus, a small, automated weeding device suitable for blueberry plantations is needed. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a hand-held orchard weeding device.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a hand-held orchard weeding device, including a frame, a walking mechanism at the bottom of the frame, a power mechanism, a transmission mechanism, a control mechanism and a weeding mechanism on the frame, the transmission mechanism transmitting power from the power mechanism to the walking mechanism and the weeding mechanism, the control mechanism for controlling the movement of the walking mechanism and the weeding mechanism, the weeding mechanism including a fixed tube fixedly installed at the lower part of the frame, a weeding blade shaft rotatably installed inside the fixed tube, the top end of the weeding blade shaft being connected to the transmission mechanism, the bottom end extending out of the fixed tube and having a horizontally arranged main blade at the end, the middle part of the main blade being fixed on the weeding blade shaft, and a secondary blade rotatably installed at each end, the height of the main blade and the secondary blade being higher than the bottom surface of the walking mechanism.

[0006] Furthermore, a drive shaft is rotatably mounted on the frame above the weeding blade shaft. A first connecting sleeve is vertically slidably mounted on the lower part of the drive shaft, and a second connecting sleeve is mounted on the top of the weeding blade shaft. The bottom of the first connecting sleeve has several grooves in an annular shape, and the top of the second connecting sleeve has several protrusions corresponding to them. When the first connecting sleeve moves downward, the grooves and protrusions cooperate to make the drive shaft and the weeding blade shaft rotate synchronously in the axial direction.

[0007] Furthermore, a first planar thrust bearing is fixedly installed inside the upper cavity of the fixed tube, and a thrust spring is installed between the bottom of the first connecting sleeve and the first planar thrust bearing.

[0008] Furthermore, a horizontally arranged pivot is rotatably mounted on the frame near the drive shaft, and a pressure rod is fixedly mounted on the pivot. A second planar thrust bearing is mounted on the first connecting sleeve, and the end of the pressure rod away from the pivot is located above the second planar thrust bearing. A connecting rod is mounted on one side of the pivot. The operating mechanism includes an operating handle mounted on the rear side of the frame. The operating handle includes two operating handles, one of which is equipped with a weeding handle. The weeding handle is connected to the connecting rod via a brake cable.

[0009] Furthermore, the transmission mechanism includes a drive shaft rotatably mounted on the frame, on which a first gear, a second gear, and a first bevel gear are mounted. The first gear is connected to the power mechanism via a chain, and the second gear is connected to the walking mechanism via a chain. A second bevel gear is mounted at the top of the drive shaft, and the first bevel gear meshes with the second bevel gear.

[0010] Furthermore, the walking mechanism includes a drive wheel set disposed on the rear side of the frame and two driven wheel sets disposed on the front side of the frame. The driven wheel sets include an adjustment bracket, an axle is horizontally disposed at the bottom of the adjustment bracket, and a driven wheel is rotatably disposed on the axle. Two mounting holes are vertically spaced at intervals on the front side of the frame corresponding to the adjustment bracket. Several adjustment holes are vertically arranged on the adjustment bracket, and the distance between two adjacent mounting holes is an integer multiple of the distance between two adjacent adjustment holes.

[0011] In summary, this utility model has the following beneficial effects:

[0012] 1. In this application, a weeding blade shaft, a main blade, and a secondary blade are provided. The height of the main blade and the secondary blade is set higher than the bottom surface of the walking mechanism, so that there is a certain distance between the blade and the ground. In this way, when the weeding blade shaft rotates and drives the main blade and the secondary blade to rotate and weed, only the leaf diameter of the weeds on the ground will be cut off, while the soil surface and the root system of the weeds will not be damaged, thus protecting the ecological environment of the plantation and achieving the purpose of reducing soil erosion and conserving water.

[0013] 2. In this application, the blade is divided into a main blade and a secondary blade. The main blade and the secondary blade are rotatably connected. When the blade encounters a relatively hard obstacle during the rotation of the blade to cut weeds, the secondary blade will deflect at a certain angle after being subjected to the reaction force of the obstacle to avoid the obstacle, thereby reducing blade damage. After passing the obstacle, the secondary blade returns to the normal working angle under the action of rotational inertia. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model after the power mechanism is hidden in an embodiment;

[0016] Figure 3 yes Figure 2 Enlarged schematic diagram of part A;

[0017] Figure 4 yes Figure 2 Enlarged schematic diagram of part B;

[0018] Figure 5 This is a schematic diagram of the weeding mechanism in an embodiment of the present invention;

[0019] Figure 6 This is a cross-sectional structural diagram of the weeding mechanism in an embodiment of this utility model;

[0020] Figure 7 This utility model embodiment is used to highlight the structural diagram of the first connecting sleeve and the second connecting sleeve.

[0021] In the diagram: 10. Frame; 20. Walking mechanism; 21. Drive wheel assembly; 22. Driven wheel assembly; 221. Adjusting bracket; 222. Axle; 223. Driven wheel; 224. Adjusting hole; 30. Power mechanism; 40. Transmission mechanism; 41. Drive shaft; 42. First gear; 43. Second gear; 44. First bevel gear; 50. Control mechanism; 51. Operating handle; 52. Operating handle; 53. Weeding handle; 54. 60. Brake wire rope; 61. Weeding mechanism; 62. Fixing tube; 63. First planar thrust bearing; 64. Weeding blade shaft; 65. Main blade; 66. Secondary blade; 67. Drive shaft; 68. Second bevel gear; 69. First connecting sleeve; 60. Groove; 61. Second planar thrust bearing; 62. Second connecting sleeve; 63. Protrusion; 64. Thrust spring; 65. Rotating shaft; 66. Pressure rod; 67. Connecting rod. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] like Figure 1-7As shown in the illustration, this application discloses a hand-held orchard weeding device, including a frame 10. A walking mechanism 20 is provided at the bottom of the frame 10, which drives the entire device to move. The frame 10 is equipped with a power mechanism 30, a transmission mechanism 40, a control mechanism 50, and a weeding mechanism 60. The power mechanism 30 provides power to the entire device. The transmission mechanism 40 transmits the power from the power mechanism 30 to the walking mechanism 20 and the weeding mechanism 60. The control mechanism 50 controls the movement of the walking mechanism 20 and the weeding mechanism 60.

[0024] Specifically, the weeding mechanism 60 includes a fixed tube 61 fixedly mounted on the lower part of the frame 10. A weeding blade shaft 62 is rotatably mounted inside the fixed tube 61. The bottom end of the weeding blade shaft 62 extends out of the fixed tube 61, and a horizontally arranged main blade 63 is mounted at its end. The middle of the main blade 63 is fixed to the weeding blade shaft 62, and a secondary blade 64 is rotatably mounted at each end. The height of the main blade 63 and the secondary blade 64 is higher than the bottom surface of the traveling mechanism 20. The top end of the weeding blade shaft 62 is connected to the transmission mechanism 40. The power mechanism 30 and the transmission mechanism 40 drive the weeding blade shaft 62 to rotate, thereby causing the main blade 63 and the secondary blade 64 to rotate at high speed, clearing weeds from the blueberry plantation grounds. Because the height of the main blade 63 and the secondary blade 64 is higher than the bottom surface of the traveling mechanism 20, the high-speed rotation of the main blade 63 and the secondary blade 64 will not contact the ground soil, thus ensuring that the soil surface and weed roots are not damaged, protecting the plantation's ecological environment, and achieving the purpose of reducing soil erosion and conserving water.

[0025] In the setup, a drive shaft 65 is rotatably mounted on the frame 10 above the weeding blade shaft 62. A first connecting sleeve 66 is vertically slidably fitted onto the lower part of the drive shaft 65. A second connecting sleeve 67 is mounted on the top of the weeding blade shaft 62. The bottom of the first connecting sleeve 66 has several grooves 661 arranged in a ring, and the top of the second connecting sleeve 67 has several corresponding protrusions 671. When the first connecting sleeve 66 moves downward, the grooves 661 and protrusions 671 engage, causing the drive shaft 65 and the weeding blade shaft 62 to rotate synchronously in the axial direction. That is, through the arrangement of the first connecting sleeve 66 and the second connecting sleeve 67, the engagement of the grooves 661 and the protrusions 671 allows the drive shaft 65 and the weeding blade shaft 62 to contact or separate, thus achieving the purpose of a clutch. In operation, the first connecting sleeve 66 moves downward, causing the groove 661 to engage with the protrusion 671. This allows the first connecting sleeve 66 and the second connecting sleeve 67 to rotate synchronously in the circumferential direction, which in turn causes the drive shaft 65 and the weeding blade shaft 62 to rotate synchronously in the circumferential direction, driving the main blade 63 and the auxiliary blade 64 to perform weeding. When not weeding, the first connecting sleeve 66 moves upward, separating the groove 661 from the protrusion 671. This prevents the drive shaft 65 from rotating even if it continues to rotate.

[0026] Furthermore, a first planar thrust bearing 611 is fixedly installed inside the upper cavity of the fixed tube 61, and a thrust spring 68 is installed between the bottom of the first connecting sleeve 66 and the first planar thrust bearing 611. During operation, simply applying pressure to the first connecting sleeve 66 to make it move downwards will achieve synchronous rotation of the drive shaft 65 and the weeding blade shaft 62 for weeding. When it is necessary to stop the weeding operation, simply release the pressure applied to the first connecting sleeve 66, and the thrust spring 68 will push the first connecting sleeve 66 upwards, thereby separating the drive shaft 65 and the weeding blade shaft 62. The operation is simple and convenient.

[0027] To facilitate control of the weeding mechanism 60, a horizontally arranged rotating shaft 69 is rotatably mounted on the frame 10 near the drive shaft 65. Two pressure rods 691 are fixedly mounted on the rotating shaft 69 at intervals. A second planar thrust bearing 662 is mounted on the first connecting sleeve 66. The end of the pressure rod 691 furthest from the rotating shaft 69 is positioned above the second planar thrust bearing 662, and the two pressure rods 691 are located on either side of the second planar thrust bearing 662 on the first connecting sleeve 66 to ensure balanced force on the second planar thrust bearing 662. A connecting rod 692 is mounted on one side of the rotating shaft 69 to drive the rotating shaft 69 to rotate, thereby causing the pressure rods 691 to rotate and press down on the second planar thrust bearing 662.

[0028] The operating mechanism 50 includes an operating handle 51 located at the rear of the frame 10. The operating handle 51 includes two operating handles 52. One of the operating handles 52 is equipped with a weeding handle 53, which is connected to the connecting rod 692 via a brake cable 54. By controlling the weeding handle 53, the connecting rod 692 can be moved via the brake cable 54, causing the pressure rod 691 to rotate and press down on the second planar thrust bearing 662. The other operating handle 52 is equipped with a control handle for controlling the travel mechanism 20, thereby controlling the movement, speed, and other states of the entire equipment.

[0029] The transmission mechanism 40 includes a drive shaft 41 rotatably mounted on the frame 10. A first gear 42, a second gear 43, and a first bevel gear 44 are mounted on the drive shaft 41. The first gear 42 is connected to the power mechanism 30 via a chain, and the second gear 43 is connected to the walking mechanism 20 via a chain. A second bevel gear 651 is mounted at the top of the drive shaft 65, and the first bevel gear 44 meshes with the second bevel gear 651. In this way, the transmission mechanism 40 only requires a single drive shaft 41 to transmit power from the power mechanism 30 to the walking mechanism 20 and the weeding mechanism 60, resulting in a simple transmission structure and convenient operation.

[0030] The walking mechanism 20 includes a drive wheel set 21 located at the rear of the frame 10 and two driven wheel sets 22 located at the front of the frame 10. The drive wheel set 21 includes two drive wheels and a drive control mechanism. The drive control mechanism is connected to the second gear 43 on the transmission shaft 41 via a gear chain, thereby driving the two drive wheels to rotate and driving the entire device to move. The driven wheel set 22 includes an adjusting bracket 221. An axle 222 is horizontally arranged at the bottom of the adjusting bracket 221, and a driven wheel 223 is rotatably arranged on the axle 222. Two mounting holes are vertically spaced at intervals on the front of the frame 10 corresponding to the adjusting bracket 221. Several adjusting holes 224 are vertically arranged on the adjusting bracket 221, and the distance between two adjacent mounting holes is an integer multiple of the distance between two adjacent adjusting holes 224. By setting up the adjustment bracket 221 and using the cooperation of the adjustment hole 224 and the mounting hole, the distance between the driven wheel 223 and the frame 10 can be adjusted, thereby changing the distance between the main blade 63, the secondary blade 64 and the bottom surface of the driven wheel 223, that is, the height of the main blade 63 and the secondary blade 64 relative to the ground when they are working. In this way, the weeding height can be adjusted according to the needs of different varieties of blueberry plantations at different times, thus improving adaptability.

[0031] The operating principle of the hand-held orchard weeding device in this embodiment is as follows: First, start the power mechanism 30, and then use the operating mechanism 50 to operate the walking mechanism 20 to move the device to the blueberry plantation where weeding is needed. After reaching the predetermined position, operate the weeding handle 53, which drives the rotating shaft 69 to rotate through the brake wire rope 54 and connecting rod 692. This causes the pressure rod 691 to rotate downward and press down on the second planar thrust bearing 662, driving the first connecting sleeve 66 to move downward. This causes the groove 661 to engage with the protrusion 671, thereby driving the weeding blade shaft 62 to rotate. The main blade 63 and the secondary blade 64 then rotate at high speed to weed. When weeding is no longer needed, release the weeding handle 53. The brake wire rope 54 and connecting rod 692 drive the rotating shaft 69 to rotate, causing the pressure rod 691 to return to its original position. Under the action of the thrust spring 68, the first connecting sleeve 66 is pushed upward, causing the drive shaft 65 and the weeding blade shaft 62 to separate, thus stopping the weeding action.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A hand-held orchard weeding device, comprising a frame (10), a walking mechanism (20) provided at the bottom of the frame (10), a power mechanism (30), a transmission mechanism (40), a control mechanism (50) and a weeding mechanism (60) provided on the frame (10), the transmission mechanism (40) transmitting power from the power mechanism (30) to the walking mechanism (20) and the weeding mechanism (60), and the control mechanism (50) for controlling the movement of the walking mechanism (20) and the weeding mechanism (60), characterized in that: The weeding mechanism (60) includes a fixed tube (61) fixedly installed at the lower part of the frame (10). A weeding blade shaft (62) is rotatably installed inside the fixed tube (61). The top end of the weeding blade shaft (62) is connected to the transmission mechanism (40), the bottom end extends out of the fixed tube (61), and a horizontally arranged main blade (63) is provided at the end. The middle part of the main blade (63) is fixed on the weeding blade shaft (62), and a secondary blade (64) is rotatably installed at each end. The height of the main blade (63) and the secondary blade (64) is higher than the bottom surface of the walking mechanism (20).

2. The hand-held orchard weeding device according to claim 1, characterized in that: A drive shaft (65) is rotatably mounted on the frame (10) above the weeding blade shaft (62). A first connecting sleeve (66) is vertically slidably mounted on the lower part of the drive shaft (65). A second connecting sleeve (67) is mounted on the top of the weeding blade shaft (62). The bottom of the first connecting sleeve (66) has several grooves (661) in an annular shape. The top of the second connecting sleeve (67) has several protrusions (671) corresponding to each other. When the first connecting sleeve (66) moves downward, the grooves (661) and the protrusions (671) cooperate to make the drive shaft (65) and the weeding blade shaft (62) rotate synchronously in the axial direction.

3. The hand-held orchard weeding device according to claim 2, characterized in that: A first planar thrust bearing (611) is fixedly installed in the upper cavity of the fixed tube (61), and a thrust spring (68) is provided between the bottom of the first connecting sleeve (66) and the first planar thrust bearing (611).

4. The hand-held orchard weeding device according to claim 3, characterized in that: The frame (10) has a horizontally arranged rotating shaft (69) rotatably mounted near the drive shaft (65). A pressure rod (691) is fixedly mounted on the rotating shaft (69). A second planar thrust bearing (662) is mounted on the first connecting sleeve (66). The end of the pressure rod (691) away from the rotating shaft (69) is located above the second planar thrust bearing (662). A connecting rod (692) is mounted on one side of the rotating shaft (69). The operating mechanism (50) includes an operating handle (51) mounted on the rear side of the frame (10). The operating handle (51) includes two operating handles (52). One of the operating handles (52) is equipped with a weeding handle (53). The weeding handle (53) is connected to the connecting rod (692) by a brake cable (54).

5. A hand-held orchard weeding device according to claim 4, characterized in that: The transmission mechanism (40) includes a drive shaft (41) rotatably mounted on the frame (10). The drive shaft (41) is provided with a first gear (42), a second gear (43) and a first bevel gear (44). The first gear (42) is connected to the power mechanism (30) via a chain, and the second gear (43) is connected to the walking mechanism (20) via a chain. The top of the drive shaft (65) is provided with a second bevel gear (651), and the first bevel gear (44) meshes with the second bevel gear (651).

6. The hand-held orchard weeding device according to claim 1, characterized in that: The walking mechanism (20) includes a drive wheel set (21) located at the rear of the frame (10) and two driven wheel sets (22) located at the front of the frame (10). The driven wheel set (22) includes an adjustment bracket (221). The bottom of the adjustment bracket (221) is provided with a wheel axle (222). A driven wheel (223) is rotatably arranged on the wheel axle (222). Two mounting holes are vertically spaced at the front of the frame (10) corresponding to the adjustment bracket (221). Several adjustment holes (224) are vertically arranged on the adjustment bracket (221). The distance between two adjacent mounting holes is an integer multiple of the distance between two adjacent adjustment holes (224).

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