A vehicle-mounted hedge trimmer

Abstract

The utility model provides a kind of vehicle-mounted hedge trimmer, it is related to the field of afforestation machinery, including the working arm of connecting car body, the pose adjusting mechanism and trimming mechanism connected in working arm;Trimming mechanism includes trimming frame and hedge cutter installed in trimming frame, it is set in trimming frame front part;Conveying mechanism, it is set in hedge cutter rear side;Branching mechanism, it is set in hedge cutter upside, branching mechanism includes pivot, two poking wheels, poking rod, poking needle and for driving pivot rotation drive part, two poking wheels are fixed with pivot, poking rod is connected between two poking wheels and is arranged with hedge cutter same direction, multiple the poking needle is fixedly installed on poking rod, for when the branch and leaf are poked to hedge cutter place with the circular motion of poking rod around pivot, and the branch and leaf that hedge cutter is trimmed are fed into conveying mechanism;Pose adjusting mechanism is connected between the trimming frame and working arm, for adjusting the working angle of trimming frame;The utility model can realize fast trimming hedge, automatically collect clean the pruned branch and leaf and be convenient for transfer.

Description

Technical Field

[0001] This utility model relates to the field of greening machinery technology, specifically to a vehicle-mounted hedge trimmer. Background Technology

[0002] In the maintenance of urban roads and highway hedges, pruning is an important task, especially for the hedges in the median strip of highways. Not only are the hedge plants generally quite tall, but because this is done on a highway, safety and efficiency are paramount. Currently, there are two types of vehicle-mounted hedge trimmers: rotary blade trimmers, which use spinning blades to cut branches and leaves, which fall directly onto the hedge or onto the road; and serrated blade trimmers, which use two blades to cut branches and leaves, which also fall directly onto the hedge or onto the road. Both methods have drawbacks: the need for manual cleaning of the cut branches and leaves, low efficiency, and safety risks for workers. Furthermore, the scattered branches and leaves on the road pose a safety hazard to passing vehicles. In particular, rotary blade trimmers have the risk of blades breaking or falling off and landing on the highway or on vehicles traveling on it, causing damage.

[0003] In response to the above situation, and to address the safety concerns and the need for manual cleaning, some companies have added negative pressure recovery facilities to the basic design of the aforementioned machines. This involves using a fan to generate negative pressure, which is then connected to the rotary cutter or shears via a duct to suck the pruned branches and leaves into a sealed storage bin. For example, the multi-functional hedge trimming vehicle published in Chinese invention patent application CN110915458A uses a negative pressure fan in the collection device to suck in the pruned branches and leaves and settle them into the storage device.

[0004] However, the aforementioned equipment also has the following problems: 1. Because the hedge trimming area is too wide, sometimes exceeding 2 meters, it is difficult for the pruned branches and leaves to be sucked away by negative pressure; 2. The broken branches and leaves often have sprawling forks, which can easily block the air duct inlet, or get stuck if there is even a slight step in the passage into the material bin; 3. The pruned leaves are lightweight and easily float, and are easily adsorbed onto the filter element under negative pressure, leading to a decrease in suction and further affecting the absorption effect of branches and leaves. Therefore, due to the above problems, this type of hedge trimmer with negative pressure recovery is rarely used in the market.

[0005] Therefore, in highway hedge trimming operations, there is a need for a vehicle-mounted hedge trimming machine that can quickly trim hedges, automatically collect clean trimmed branches and leaves, and facilitate transportation. Utility Model Content

[0006] This invention addresses the aforementioned problems in the prior art by providing a vehicle-mounted hedge trimmer that can quickly trim hedges, automatically collect clean trimmed branches and leaves, and facilitate transportation.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a vehicle-mounted hedge trimmer, characterized in that it includes a working arm connected to the vehicle body, an adjustment mechanism connected to the working arm, and a trimming mechanism connected to the adjustment mechanism. The trimming mechanism includes a trimming frame and components mounted on the trimming frame. Hedge trimmers are placed at the front of the trimming frame; The conveying mechanism is located behind the hedge trimmer; A branch-pulling mechanism is installed on the upper side of the hedge trimmer. The branch-pulling mechanism includes a rotating shaft, two rotating wheels, a lever, a needle, and a drive unit for driving the rotating shaft to rotate. The two rotating wheels are fixed to the rotating shaft. The lever is connected between the two rotating wheels and arranged in the same direction as the hedge trimmer. Multiple needles are fixedly installed on the lever and are used to pull the branches and leaves to the hedge trimmer and feed the branches and leaves pruned by the hedge trimmer into the conveying mechanism when the lever moves in a circular motion around the rotating shaft. The posture adjustment mechanism is connected between the trimming frame and the working arm and is used to adjust the working angle of the trimming frame.

[0008] Furthermore, the lever is rotatably connected to the dial wheel, and the lever is also connected to a dial adjustment mechanism, which is used to adjust the rotation of the lever relative to the dial wheel during the rotation of the lever around the axis so that the dial needle always maintains a preset angle with the horizontal plane.

[0009] Furthermore, the needle adjustment mechanism includes an adjustment wheel, an adjustment wheel support frame, and a hinge plate. The adjustment wheel support frame is fixed to the trimming frame. The adjustment wheel is adjacent to and rotatably connected to one of the dial wheels on the adjustment wheel support frame. The rotation center of the adjustment wheel is eccentric to the rotating shaft. The end of the adjustment wheel is connected to the lever through the hinge plate. One end of the hinge plate is hinged to the adjustment wheel, and the other end of the hinge plate is fixed to the lever, so that when the lever rotates with the dial wheel, it is constrained by the rotating adjustment wheel, causing the lever to revolve around the rotating shaft while rotating on its own axis at a certain angle.

[0010] Furthermore, the end of the dial pin faces downward and is tilted backward at a preset angle.

[0011] Furthermore, a feed plate connected to the hedge trimmer is provided on the front side of the conveying mechanism to provide a feed channel for feeding the branches and leaves trimmed by the hedge trimmer into the conveying mechanism, and a baffle plate is provided on the rear side of the conveying mechanism.

[0012] Furthermore, the conveying mechanism is a conveyor belt structure, and its conveying direction is the same as the length direction of the hedge trimmer.

[0013] Furthermore, the output side of the conveying mechanism is also provided with an extension conveying mechanism. The extension conveying mechanism is connected to the trimming frame through a support frame. The extension conveying mechanism includes a conveying frame, a drive wheel and a driven wheel mounted on the conveying frame, and a conveyor belt connected between the drive wheel and the driven wheel. The conveying frame is connected to an up-and-down swing drive for driving its output end to swing up and down and a forward-and-backward swing drive for driving its output end to swing back and forth, so as to adjust the up, down, forward, and backward positions of the output end of the extension conveying mechanism.

[0014] Preferably, the support frame is connected to the trimming frame via a slewing support, and the upper surface of the extension conveying mechanism is lower than the trimming frame. This allows the extension conveying mechanism to be rotated and placed under the trimming frame when idle or during the overall machine transport, thus accommodating the extension conveying mechanism and reducing space occupation.

[0015] Furthermore, the hedge trimmer is a double-blade hedge trimmer structure.

[0016] Furthermore, the pruning frame is a frame structure, with the conveying mechanism installed in its lower part. The front side of the pruning frame has an inlet for feeding the pruned branches and leaves into the conveying mechanism, the rear side of the pruning frame has a baffle plate, and one end of the pruning frame has an outlet.

[0017] Furthermore, the working arm is a telescopic working arm, and the posture adjustment mechanism includes a slewing mechanism, a hanger, a slewing drive, a left-right swing drive, and a pitch adjustment drive. The hanger is fixed to the trimming frame, and the hanger is connected to the working arm through the slewing mechanism. The slewing drive drives the trimming frame to rotate relative to the working arm through the slewing mechanism. The hanger is also connected to a left-right swing drive for driving the trimming frame to swing left and right relative to the slewing mechanism. A pitch adjustment drive for adjusting the pitch angle of the trimming frame is connected between the slewing mechanism and the working arm.

[0018] Alternatively, the working arm is a folding working arm, which is connected to the vehicle body via a sliding mechanism. The posture adjustment mechanism includes a rotation mechanism and a hanger, which is fixed to the trimming frame and connected to the end section of the working arm via the rotation mechanism.

[0019] The beneficial effects of this utility model are: 1. This utility model is a vehicle-mounted hedge trimmer mainly composed of a working arm, a posture adjustment mechanism, and a trimming mechanism. The trimming mechanism mainly consists of hedge blades, a branch-pulling mechanism, and a conveying mechanism arranged in specific positions and connections. After adjusting the working position of the hedge blades, the branch-pulling mechanism can be used to pull the branches and leaves to the hedge blades for trimming. The trimmed branches and leaves are then fed into the conveying mechanism. The trimming mechanism has a high degree of integration, realizing the integrated trimming and collection of hedge branches and leaves, improving work efficiency, and facilitating the transportation of the whole machine.

[0020] 2. This utility model further improves upon the design of the adjusting mechanism by adjusting the specific position and connection between the adjusting wheel and the dial wheel. This mechanism allows the lever to be controlled by the rotating adjusting wheel as it rotates with the dial wheel. This causes the lever to rotate around its axis while simultaneously rotating on its own axis at a certain angle. This ensures that the adjusting needle always maintains a downward-facing end and a slight backward tilt during the lever's rotation. This facilitates the movement of branches and leaves to the hedge trimmer and the smooth feeding of trimmed branches and leaves into the conveying mechanism. This ensures effective trimming and cleaning, avoiding the problems associated with a fixed connection between the lever and the two dial wheels. The adjusting needle only revolves around the axis and continuously changes its angle relative to the horizontal plane during circular rotation, making it difficult to move branches and leaves smoothly to the hedge trimmer or fully feed them into the conveying mechanism. This results in poor trimming quality and incomplete collection of scattered branches and leaves. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model; Figures 3-5 This is a schematic diagram of the pruning mechanism in Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of the structure of the extensional transmission mechanism in Embodiment 1 of this utility model; Figure 7 This is a schematic diagram of the extended conveying mechanism in its stored state according to Embodiment 1 of this utility model; Figure 8 , Figure 9 This is a schematic diagram of the usage state of Embodiment 1 of this utility model; Figure 10 , Figure 11 This is a schematic diagram of the usage state of Embodiment 2 of this utility model; Figure 12 yes Figure 5 A magnified view of a portion of the image; In the diagram: 100. Pruning mechanism, 200. Posture adjustment mechanism, 201. Hanger, 202. Rotation mechanism, 203. Rotation drive, 204. Left and right swing drive, 205. Pitch adjustment drive, 206. Connecting frame, 300. Working arm, 301. Lifting drive, 1. Pruning frame, 11. Baffle plate, 12. Feed inlet, 13. Discharge outlet, 14. Feed plate, 2. Hedge cutter, 21. Hedge cutter drive, 3. Conveying mechanism, 4. Branch removal mechanism, 41. Lever, 42. Needle 43. Branch-picking drive, 44. Rotating shaft, 45. Left dial wheel, 46. Right dial wheel, 5. Pin adjustment mechanism, 51. Adjusting wheel, 52. Adjusting wheel support frame, 53. Hinge plate, 54. Support wheel, 6. Extensional conveying mechanism, 60. Support frame, 61. Conveyor frame, 62. Drive wheel, 63. Driven wheel, 64. Conveyor belt, 65. Rotary support, 66. Forward and backward swing drive, 67. Up and down swing drive, 68. Connecting bracket, 69. First hinge shaft, 610. Second hinge shaft. Detailed Implementation

[0022] The principles and features of this utility model are described below. The embodiments given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0023] Example 1 like Figures 1-4 As shown, the vehicle-mounted hedge trimmer of this embodiment includes a working arm 300 connected to the vehicle body, an adjustment mechanism 200 connected to the working arm 300, and a trimming mechanism 100 connected to the adjustment mechanism 200. The working arm 300 of this embodiment is a telescopic working arm (existing technology). The tail end of the working arm 300 is connected to the vehicle body of vehicle A through a fixed seat 302. The fixed seat 302 is fixed on the vehicle body. The fixed seat 302 is connected to a support seat 303 through a slewing bearing. The tail end of the working arm 300 is hinged to the support seat 303 and a lifting drive 301 for lifting the working arm 300 is connected between the two (specifically, a hydraulic cylinder can be used, with its two ends hinged to the support seat 303 and the working arm 300 respectively).

[0024] The pruning mechanism 100 of this embodiment includes a frame-type pruning frame 1. The front side of the pruning frame 1 has an inlet 12 for feeding the pruned branches and leaves into the conveying mechanism 3. The rear side of the pruning frame 1 has the baffle plate 11. One end of the pruning frame 1 has an outlet 13. The pruning mechanism 100 also includes a component installed on the pruning frame 1: Hedge cutter 2 is located at the lower front part of trimming frame 1, specifically a double-layer blade hedge shearing structure (existing technology). The branch-pulling mechanism 4 is located on the upper side of the hedge trimmer 2. The branch-pulling mechanism 4 includes a rotating shaft 44, two deflectors (left deflector 45 and right deflector 46), deflector levers 41, deflector pins 42, and a drive unit 43 for driving the rotating shaft 44 to rotate. The two deflectors are fixed to the rotating shaft 44. At least one deflector lever 41 can be provided according to actual needs. In this embodiment, five deflector levers 41 are arranged in a circular array around the rotating shaft 44. The five deflector levers 41 are located between the left deflector 45 and the right deflector 46 and are arranged in the same direction as the hedge trimmer 2. The two ends of the five deflector levers 41 are respectively connected to the left deflector 45 and the right deflector 46. At the end of the wheel 46, each lever 41 is provided with multiple lever pins 42. The multiple lever pins 42 are arranged linearly and fixedly installed on the lever 41 at intervals. They are used to move the branches and leaves to the hedge trimmer 2 when the lever 41 moves around the rotating shaft 44 in a circular motion so that the hedge trimmer can perform pruning. Then, the branches and leaves pruned by the hedge trimmer 2 are fed into the conveying mechanism 3 located on the rear side of the hedge trimmer 2 through the feed port 12. In this embodiment, the conveying mechanism 3 is a conveyor belt structure, which is installed in the lower part of the trimming frame 1. Its conveying direction is the same as the length direction of the hedge trimmer 2, and it is used to collect the pruned branches and leaves.

[0025] In this embodiment, the posture adjustment mechanism 200 is connected between the trimming frame 1 and the working arm 300, and is used to adjust the working angle of the trimming frame 1, specifically adjusting its pitch, lateral tilt, and rotation angles so that the hedge trimmer 2 adapts to the hedge strip to be trimmed. The posture adjustment mechanism 200 includes a rotation mechanism 202, a hanger 201, a rotation drive 203, a lateral tilt drive 204, and a pitch adjustment drive 205. The lower end of the hanger 201 is fixed to the trimming frame 1, and the upper end of the hanger 201 is hinged to... The connecting frame 206 is connected to the working arm 300 via the rotary mechanism 202, and the pruning frame 1 is driven to rotate relative to the working arm 300 via the rotary mechanism 202 by the rotary drive 203; a left-right swing drive 204 is connected between the hanger 201 and the connecting frame 206 to drive it to swing left and right relative to the rotary mechanism 202, and the connecting frame 206 is connected to the rotary drive 203 to drive it to rotate relative to the working arm 300 via the rotary mechanism 202, as detailed in the following section. Figure 3 As shown, in this embodiment, the inner ring of the rotary mechanism is fixed to the connecting frame 206, and the outer ring of the rotary mechanism is connected to the working arm 300. The two ends of the rotary drive 203 are hinged to the outer ring of the rotary mechanism and the connecting frame 206, respectively. The rotary mechanism 202 is hinged to the working arm 300 (its hinge axis is perpendicular to the hinge axis between the hanger 201 and the connecting frame 206). A pitch adjustment drive 205 for adjusting the pitch angle of the trimming frame 1 is connected between the rotary mechanism 202 and the working arm 300. The two ends of the pitch adjustment drive 205 are hinged to the outer walls of the working arm 300 and the rotary mechanism 202, respectively. The rotary drive 203, the left-right swing drive 204, and the pitch adjustment drive 205 are all existing technologies, such as the structures of hydraulic cylinders and electric push cylinders.

[0026] During operation, the pruning mechanism 100 is extended using the working arm 300, and the working angle of the hedge cutter 2 is adjusted using the posture adjustment mechanism 200. Then, the hedge leaves are pruned using the hedge cutter 2 located at the front and lower side. The branch-pulling mechanism 4 above it uses the needle 42 to pull the branches and leaves to the hedge cutter 2 and then pushes the pruned branches and leaves backward and feeds them into the conveying mechanism 3 located behind the hedge cutter 2. The conveying mechanism 3 collects the pruned branches and leaves and transports them to the side to the compartment of vehicle A or another vehicle B.

[0027] In a preferred embodiment of this utility model, see Figure 5As shown, the lever 41 is rotatably connected to the left dial 45 and the right dial 46 respectively. The lever 41 is also connected to a needle adjustment mechanism 5, which is used to adjust the rotation of the lever 41 relative to the dials during the rotation of the lever 41 around the rotating shaft 44 so that the needle 42 always maintains a preset angle with the horizontal plane. Specifically, it keeps the end of the needle 42 facing down and tilted backward at a preset angle. The purpose is to simultaneously meet the technical requirements of smoothly moving the branches and leaves to the hedge trimmer 2 and moving the branches and leaves pruned by the hedge trimmer 2 backward and feeding them into the conveying mechanism 3, avoiding the fixed connection between the lever and the two dials. The resulting needle only revolves around the axis 41 and constantly changes its angle relative to the horizontal plane during the circular rotation, which makes it impossible to smoothly move the branches and leaves to the hedge trimmer and to fully feed the branches and leaves into the conveying mechanism 3. This results in poor pruning effect and incomplete collection of scattered branches and leaves. (Because the lever and the two wheels are fixedly connected, the angle of the needle changes during the rotation of the lever, which will produce downward, upward and reverse movements. When the needle is downward, it will affect the movement of the hedge leaves to the hedge trimmer. When the needle is upward and reversed, it will affect the feeding of branches and leaves into the conveying mechanism 3.) Specifically, the needle adjustment mechanism 5 includes an adjustment wheel 51, an adjustment wheel support frame 52, and a hinge plate 53. In this embodiment, the outer diameter of the adjustment wheel 51 is the same as that of the left derailleur 45, but this solution is not limited to this. The adjustment wheel support frame 52 is located outside the left derailleur 45 (or the right derailleur 46) and fixed to the trimming frame 1. The adjustment wheel 51 is adjacent to the left derailleur 45 (or the right derailleur 46) and rotatably connected to the adjustment wheel support frame 52 (in this embodiment, the adjustment wheel support frame 52 is provided with three supports for...). The adjustment wheel 51 is supported by a support wheel 54, but is not limited to this; the rotation center of the adjustment wheel 51 is eccentric to the rotating shaft 44, and the end of the adjustment wheel 51 is connected to the lever 41 through a hinge plate 53. One end of the hinge plate 53 is hinged to the adjustment wheel 51, and the other end of the hinge plate 53 is fixed to the lever 41, so that when the lever 41 rotates with the lever, it is restrained by the adjusting wheel 51, which rotates accordingly. This causes the lever 41 to revolve around the rotating shaft 44 while rotating on its own axis at a certain angle, thereby achieving the restraining effect of the adjustment wheel 51 on the left lever 45. The above-mentioned restraining and adjusting effect of the lever adjustment mechanism 5 on the lever ensures that during the rotation of the lever 41, the lever 42 always maintains an angle with its end facing down and slightly tilted backward (this tilt angle is determined by the eccentric position of the adjustment wheel 51 and the corresponding lever, as well as the installation angle of the lever 42 on the lever 41).

[0028] In a preferred embodiment of this utility model, a feed plate 14 is provided on the front side of the conveying mechanism 3 to connect the hedge trimmer 2. The shape of the upper surface of the feed plate 14 is adapted to the rotation trajectory of the needle 42 above it, providing a feed channel for the branches and leaves trimmed by the hedge trimmer 2 to be fed into the conveying mechanism 3 above it. A baffle plate 11 is provided on the rear side of the conveying mechanism 3 to prevent the branches and leaves from being thrown backward outside the conveying mechanism 3, further ensuring the collection effect of the branches and leaves.

[0029] In a preferred embodiment of this utility model, an extended transmission mechanism 6 is further provided on the output side of the transmission mechanism 3, see... Figures 3-6 As shown, the epitaxial conveying mechanism 6 is connected to the trimming frame 1 via a support frame 60, and its upper end is lower than that of the conveying mechanism 3. The epitaxial conveying mechanism 6 includes a conveying frame 61, a drive wheel 62 and a driven wheel 63 mounted on the conveying frame 61, and a conveyor belt 64 connecting the drive wheel 62 and the driven wheel 63. The tail end of the conveying frame 61 is connected to the support frame 60 via a connecting bracket 68. The tail end of the conveying frame 61 is horizontally hinged to the connecting bracket 68 (the second hinge axis 610 is arranged horizontally). A vertical swing drive 67 is connected between the conveying frame 61 and the connecting bracket 68 to drive the output end of the epitaxial conveying mechanism 6 to swing up and down around the hinge axis. The connecting bracket 68 is vertically hinged to the support frame 60 (the first hinge axis 69 is arranged vertically). A forward and backward swing drive 66 is connected between the connecting bracket 68 and the support frame 60 to drive the output end of the epitaxial conveying mechanism 6 to swing back and forth around the hinge axis (the two ends of the forward and backward swing drive 66 are respectively hinged to the support frame 60 and the connecting bracket 68). By adjusting the forward and backward swing or up and down swing of the output end of the extended conveying mechanism 6, it can be adapted to the height of the receiving car and the front and back position of the material to be unloaded, so as to meet the needs of material collection under different working conditions.

[0030] In another preferred embodiment of this utility model, the support frame 60 is connected to the trimming frame 1 via a rotary support 65, and the upper end face of the extension conveying mechanism 6 is lower than the lower end face of the trimming frame 1. The rotary support 65 allows the extension conveying mechanism 6 to rotate around it (e.g., 180 degrees), presenting two states: the extension conveying mechanism 6 extending outward from the output side of the trimming frame 1 and retracted into the lower side of the trimming frame 1. This allows the extension conveying mechanism to be rotated and placed under the trimming frame when idle or during machine transport. Figure 7 As shown, this reduces space usage.

[0031] Example 2 The vehicle-mounted hedge trimmer in this embodiment is basically the same as in Embodiment 1, except that the working arm 300 in this embodiment is a multi-section folding working arm, see... Figure 10 and Figure 11 As shown, the working arm 300 is connected to the vehicle body via a sliding mechanism 700. The posture adjustment mechanism 200 includes a rotation mechanism 202 and a hanger 201. The hanger 201 is fixed to the trimming frame 1 and is connected to the end section of the working arm 300 via the rotation mechanism 202 to adjust the left and right swing angle of the hedge trimmer 2. The height and position of the trimming mechanism 100 are adjusted by the working arm 300 and its sliding connection with the vehicle body, and then the left and right swing angle of the hedge trimmer 2 is adjusted in conjunction with the posture adjustment mechanism 200 until the hedge trimmer 2 is adjusted to a suitable working angle.

Claims

1. A vehicle-mounted hedge trimmer, characterized in that, It includes a working arm (300) connected to the vehicle body, an adjustment mechanism (200) connected to the working arm (300), and a trimming mechanism (100) connected to the adjustment mechanism (200). The trimming mechanism (100) includes a trimming frame (1) and a component mounted on the trimming frame (1). Hedge trimmer (2), placed in front of trimmer (1); The conveying mechanism (3) is located behind the hedge knife (2); The branch-picking mechanism (4) is located on the upper side of the hedge trimmer (2). The branch-picking mechanism (4) includes a rotating shaft (44), two dial wheels, a lever (41), a needle (42), and a drive unit (43) for driving the rotating shaft (44) to rotate. The two dial wheels are fixed to the rotating shaft (44). The lever (41) is connected between the two dial wheels and arranged in the same direction as the hedge trimmer (2). Multiple needles (42) are fixedly installed on the lever (41) and are used to pick up branches and leaves to the hedge trimmer (2) and feed the branches and leaves cut off by the hedge trimmer (2) into the conveying mechanism (3) when the lever (41) moves in a circle around the rotating shaft (44). The posture adjustment mechanism (200) is connected between the trimming frame (1) and the working arm (300) and is used to adjust the working angle of the trimming frame (1).

2. The vehicle-mounted hedge trimmer according to claim 1, characterized in that, The lever (41) is rotatably connected to the dial wheel. The lever (41) is also connected to a dial adjustment mechanism (5), which is used to adjust the rotation of the lever (41) relative to the dial wheel during the rotation of the lever (41) around the rotating shaft (44) so ​​that the dial (42) always maintains a preset angle with the horizontal plane.

3. The vehicle-mounted hedge trimmer according to claim 2, characterized in that, The needle adjustment mechanism (5) includes an adjustment wheel (51), an adjustment wheel support frame (52), and a hinge plate (53). The adjustment wheel support frame (52) is fixed to the trimming frame (1). The adjustment wheel (51) is arranged adjacent to the dial wheel and rotatably connected to the adjustment wheel support frame (52). The rotation center of the adjustment wheel (51) is eccentric to the rotating shaft (44). The end of the adjustment wheel (51) is connected to the lever (41) through the hinge plate (53). One end of the hinge plate (53) is hinged to the adjustment wheel (51), and the other end of the hinge plate (53) is fixed to the lever (41) so that when the lever (41) rotates with the dial wheel, it is constrained by the adjustment wheel (51) that rotates with it, so that the lever (41) revolves around the rotating shaft (44) while rotating on its own axis at a certain angle.

4. The vehicle-mounted hedge trimmer according to claim 2 or 3, characterized in that, The end of the dial pin (42) is facing downward and tilted backward at a preset angle.

5. The vehicle-mounted hedge trimmer according to claim 1, characterized in that, The front side of the conveying mechanism (3) is provided with a feed plate (14) that connects to the hedge cutter (2), providing a feed channel for the branches and leaves pruned by the hedge cutter (2) to be fed into the conveying mechanism (3), and the rear side of the conveying mechanism (3) is provided with a baffle plate (11).

6. The vehicle-mounted hedge trimmer according to claim 1, characterized in that, The conveying mechanism (3) is a conveyor belt structure, and its conveying direction is the same as the length direction of the hedge trimmer (2).

7. The vehicle-mounted hedge trimmer according to claim 1, characterized in that, The output side of the conveying mechanism (3) is also provided with an extension conveying mechanism (6). The extension conveying mechanism (6) is connected to the trimming frame (1) through a support frame (60). The extension conveying mechanism (6) includes a conveying frame (61), a drive wheel (62) and a driven wheel (63) mounted on the conveying frame (61), and a conveyor belt (64) connected between the drive wheel (62) and the driven wheel (63). The conveying frame (61) is connected to an up-and-down swing drive (67) for driving its output end to swing up and down, and a back-and-forth swing drive (66) for driving its output end to swing back and forth.

8. The vehicle-mounted hedge trimmer according to claim 1, characterized in that, The pruning frame (1) is a frame structure, and the conveying mechanism (3) is installed in the lower part of it. The front side of the pruning frame (1) has a feed inlet (12) for feeding the pruned branches and leaves into the conveying mechanism (3). The rear side of the pruning frame (1) has a baffle plate (11), and one end of the pruning frame (1) has a discharge port (13).

9. The vehicle-mounted hedge trimmer according to claim 1, characterized in that, The working arm (300) is a telescopic working arm. The posture adjustment mechanism (200) includes a rotary mechanism (202), a hanger (201), a rotary drive (203), a left and right swing drive (204), and a pitch adjustment drive (205). The hanger is fixed to the trimming frame (1). The hanger (201) is connected to the working arm (300) through the rotary mechanism (202), and the rotary drive (203) drives the trimming frame (1) to rotate relative to the working arm (300) through the rotary mechanism (202). The hanger (201) is also connected to a left and right swing drive (204) for driving the trimming frame (1) to swing left and right relative to the rotary mechanism (202). A pitch adjustment drive (205) for adjusting the pitch angle of the trimming frame (1) is connected between the rotary mechanism (202) and the working arm (300).

10. The vehicle-mounted hedge trimmer according to claim 1, characterized in that, The working arm (300) is a folding working arm. The working arm is connected to the vehicle body through a sliding mechanism. The posture adjustment mechanism (200) includes a rotation mechanism and a hanger. The hanger is fixed to the trimming frame (1). The hanger is connected to the end section of the working arm (300) through the rotation mechanism.

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