A garden landscape trimming device

Abstract

This invention relates to the field of green plant pruning devices, and provides a garden landscape pruning device, which includes a moving mechanism equipped with a lifting and rotating platform; a frame is set on the lifting and rotating platform, and the frame can rotate under the drive of the lifting and rotating platform to avoid ash trees planted within holly hedges; the frame is provided with an arc-shaped track, the open end of the arc-shaped track facing the moving direction of the moving mechanism; a cutting component is slidably set on the arc-shaped track, and the cutting component can rotate along the arc-shaped track so that the cutting component can rotate around the ash tree and cut the top surface of the holly hedge on both sides of the ash tree. This invention achieves efficient holly hedge cutting by using the rotating lifting and rotating platform to avoid the ash tree and the cutting component to rotate along the arc-shaped track of the frame to prune the holly hedge on both sides of the ash tree, solving the technical problem of difficulty in pruning ash trees interspersed within holly hedges in the prior art.

Description

Technical Field

[0001] This invention relates to the field of green plant pruning devices, specifically to a garden landscape pruning device. Background Technology

[0002] Landscape design is a comprehensive art that integrates natural aesthetics, functional needs, and regional culture. Holly hedges are used extensively in landscape design, and regular pruning is necessary to maintain their beauty.

[0003] In existing technologies, to improve the efficiency of pruning large quantities of holly hedges, mobile devices carrying rotary or serrated cutters are typically used. The specific holly cutting components are mounted on the mobile mechanism via lifting and rotating devices, which can adapt to different heights and the cleaning of the top and sides of the holly. While automated equipment can significantly increase the pruning speed of holly hedges, in landscaping, ash trees are often interspersed within holly hedges. Existing devices cannot prune these holly hedges with interspersed ash trees in a single pass; multiple pruning sessions or manual assistance are often required. Summary of the Invention

[0004] To overcome the above-mentioned defects, embodiments of the present invention provide a garden landscape pruning device, which solves the technical problem of difficulty in pruning ash trees interspersed in holly hedges in the prior art.

[0005] According to one aspect, at least one embodiment of the present invention provides a garden landscape pruning device, comprising: The moving mechanism is equipped with a lifting and rotating platform; The frame is mounted on the lifting and rotating platform. The frame can rotate under the drive of the lifting and rotating platform to avoid the ash trees planted in the holly hedge. The frame is provided with an arc-shaped track with an opening facing the moving direction of the moving mechanism. A cutting component is slidably mounted on the arc-shaped track. The cutting component can move along the arc-shaped track to rotate around the ash tree and cut the top surface of the holly hedge on both sides of the ash tree. After the cutting assembly completes the cutting of the top surface of the holly hedge on both sides of the ash tree, the lifting rotary table can drive the frame to rotate so that the frame can avoid the ash tree during the movement of the moving mechanism.

[0006] For example, in a garden landscape pruning device provided in at least one embodiment of the present invention, a straight track is also provided on the frame, and the two ends of the straight track are respectively connected to the two ends of the arc track, so that the cutting component can enter the straight track after moving to the end of the arc track, and the cutting component can slide along the straight track to approach or move away from the center of the arc track.

[0007] For example, in a garden landscape pruning device provided in at least one embodiment of the present invention, a limiting mechanism is further included. The limiting mechanism is disposed on the frame and is used to abut against the cutting component to limit the sliding range of the cutting component within the linear track.

[0008] For example, in a garden landscape pruning device provided in at least one embodiment of the present invention, there are two limiting mechanisms, both of which are slidably disposed on the frame, and the two limiting mechanisms can slide close to each other. The limiting mechanism includes: A sliding frame is slidably mounted on the frame body; Abutment is provided on the sliding frame, and the abutment of the two sliding frames can slide towards each other to press against the two sides of the ash tree; A limiting block is disposed on the sliding frame and located on the side of the sliding frame away from the abutment. The limiting block can prevent the cutting assembly from sliding along the straight track close to the ash tree.

[0009] For example, in a garden landscape pruning device provided in at least one embodiment of the present invention, an automatic avoidance mechanism is further provided between the frame and the lifting rotary platform. During the movement of the moving mechanism, the automatic avoidance mechanism can cause the frame to rotate to avoid the ash tree after the frame comes into contact with it. The automatic avoidance mechanism includes: A rotating seat is provided on the lifting and rotating platform. The frame is rotatably connected to the rotating seat via a rotating shaft. A first elastic reset member is sleeved on the rotating shaft. One end of the first elastic reset member is connected to the lifting and rotating platform, and the other end is connected to the frame. The first elastic reset member is used to elastically pull the frame back to its original position after the frame follows the moving mechanism past the previous ash tree so that the frame can abut against the next ash tree.

[0010] For example, in a garden landscape pruning device provided by at least one embodiment of the present invention, neither the arc-shaped track nor the straight track extends beyond the front edge of the frame. The abutment is rotatably mounted on the sliding frame. The abutment can rotate away from the center of the arc-shaped track or extend beyond the front edge of the frame, so that during the process of the frame rotating to avoid the ash tree, the abutment can rotate to avoid the ash tree. A second elastic reset member is provided between the abutment and the sliding frame. The second elastic reset member can elastically push the abutment to rotate to a position extending beyond the front edge of the frame, so that before the front edge of the frame abuts against the ash tree, the abutment can abut against the ash tree under the action of the sliding frame.

[0011] For example, in a garden landscape pruning device provided in at least one embodiment of the present invention, a driving component is further included. The driving component is disposed on the frame and is used to drive the limiting mechanism to slide. The driving component includes: A dual-axis rotation drive is mounted on the frame. The dual-axis rotation drive has two coaxially arranged drive ends, and each drive end is equipped with a torque limiter. A first screw is rotatably mounted on the frame, the first screw is threadedly connected to one of the sliding frames, and the first screw is drive-connected to one of the torque limiters; The second screw is rotatably mounted on the frame. The second screw is threadedly connected to another sliding frame and is drivenly connected to another torque limiter. The threads of the second screw and the first screw are opposite in direction. The second screw and the first screw are respectively used to drive the two sliding frames to move closer to each other or further away from each other.

[0012] For example, a garden landscape pruning device provided in at least one embodiment of the present invention further includes: A limit switch is disposed on the sliding frame. The limit switch is electrically connected to the dual-axis rotation drive and is used to detect the position parameters of the abutment to control the opening and closing of the dual-axis rotation drive. The abutment can trigger the limit switch when rotating away from the center of the arc track, so as to start or stop the dual-axis rotation drive by means of the limit switch.

[0013] For example, in a garden landscape pruning device provided in at least one embodiment of the present invention, the cutting component includes: A sliding frame is slidably engaged with the arc-shaped track or the straight track and is located below the frame body. The sliding frame has several fixed teeth. A cutting strip is reciprocatingly mounted on the sliding frame. The cutting strip has movable teeth that can cooperate with the fixed teeth under the drive of the cutting strip to cut holly hedges.

[0014] For example, in a garden landscape pruning device provided in at least one embodiment of the present invention, the sliding frame is provided with an upwardly extending baffle, and the garden landscape pruning device also includes; A single-axis rotation drive is provided on the sliding frame. The drive end of the single-axis rotation drive is provided with a drive wheel with the main shaft arranged in the vertical direction. The drive wheel is in rolling cooperation with the arc-shaped track. The drive wheel can rotate to drive the sliding frame to move along the arc-shaped track. The linear drive unit has two components, both of which are mounted on the frame and located at both ends of the arc-shaped track. When the sliding frame slides to the end of the arc-shaped track, the linear drive unit can push the baffle so that the sliding frame slides into the straight track and approaches the limiting mechanism. The third elastic reset member has two ends acting on the sliding frame and the frame body respectively. The third elastic reset member is used to elastically push the sliding frame so that the sliding frame slides away from the straight track.

[0015] The beneficial effects of this invention are as follows: In this invention, the top surface of the holly hedge on both sides of the ash tree can be cut during the movement of the moving mechanism by the cooperation of the arc track on the frame and the cutting component. Then, the frame is rotated by the lifting and turning platform to avoid the ash tree, thus realizing efficient pruning of the holly hedge with interspersed ash trees. This solves the problem of multiple repetitive pruning or manual assisted pruning in the prior art and greatly improves pruning efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the concealed moving mechanism of the present invention. Figure 3 This is a schematic diagram of the structure of the present invention after the moving mechanism is hidden; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 for Figure 3 Formal structural diagram of the central structure; Figure 6 for Figure 5 Enlarged structural diagram at point B; Figure 7 A schematic diagram of the structure when the cutting component moves to one end of the arc track; Figure 8 for Figure 7 Enlarged structural diagram at point C; Figure 9 This is a schematic diagram of the cut component structure; Figure 10 for Figure 9 Enlarged structural diagram at point D; In the diagram: 100, moving mechanism; 200, lifting rotary table; 300, frame; 310, arc track; 400, cutting assembly; 320, linear track; 500, limiting mechanism; 510, sliding frame; 520, abutment part; 530, limiting block; 600, automatic avoidance mechanism; 610, rotating seat; 620, first elastic reset part; 540, second elastic reset part; 700, drive assembly; 710, dual-axis rotation drive part; 720, torque limiter; 730, first screw; 740, second screw; 750, limit switch; 410, sliding frame; 411, fixed gear; 420, cutting strip; 421, moving gear; 430, single-axis rotation drive part; 440, drive wheel; 450, linear drive part; 460, third elastic reset part; 470, baffle. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-2The diagram illustrates a garden landscape pruning device according to an embodiment of the present invention, comprising a moving mechanism 100, a frame 300, and a cutting assembly 400. The moving mechanism 100 can be a vehicle such as an electric tricycle or electric four-wheeler, generally a vehicle with a bucket for easy placement of the lifting and rotating platform 200. The lifting and rotating platform 200 is mounted on the support frame of the moving mechanism 100. If the moving mechanism 100 has a bucket, the lifting and rotating platform 200 can be fixed to the bucket of the moving mechanism 100 by welding or bolting. The lifting and rotating platform 200 consists of a lifting mechanism and a rotating mechanism. The lifting mechanism uses a hydraulic telescopic rod, the cylinder of which is fixed to the moving mechanism 100, and the top of the telescopic rod is connected to the base of the rotating mechanism. The hydraulic telescopic rod allows the frame 300 to be raised and lowered vertically to accommodate holly hedge pruning at different heights. The rotating mechanism uses a combination of a worm gear reducer and a slewing bearing. The worm gear reducer is installed at the center of the slewing bearing. The motor drives the worm gear reducer, thereby causing the slewing bearing to rotate and achieving a 360° rotation of the frame 300. On the one hand, the frame 300 can be turned to the moving mechanism 100 to avoid passing ash trees. On the other hand, when the moving mechanism 100 is not being used for hedge cutting, the frame 300 can be rotated to be directly above the moving mechanism 100, preventing the frame 300 and the cutting component 400 from interfering with the normal operation of the moving mechanism 100.

[0025] The frame 300 is a plate-like structure or a welded metal frame structure. To reduce the weight of the entire device, the frame 300 can be a hollow structure. The frame 300 is generally rectangular. During cutting, the length direction of the frame 300 is perpendicular to the movement direction of the moving mechanism 100. When the frame 300 avoids the ash tree, the length direction of the frame 300 changes to be parallel to the movement direction of the moving mechanism 100 until the frame 300 has completely passed the ash tree. Then, under the action of the rotary mechanism, the frame 300 rotates to the cutting state.

[0026] The frame 300 is equipped with an arc-shaped track 310 connected by welding or bolts. The arc-shaped track 310 is a suspended track, and the cutting component 400 is suspended below the arc-shaped track 310 and can move along the track. The radius of the arc-shaped track 310 should be larger than the diameter of the ash trees in the area to be pruned. In the optimal implementation, the middle of the cutting component 400 is suspended on the track to ensure the balance of the cutting component 400, and the radius of the arc-shaped track 310 is between 2 and 2.5 times the average radius of the ash trees.

[0027] The main body of the cutting assembly 400 consists of a motor, a transmission mechanism, and a cutting blade. A high-performance DC motor is selected, with power determined according to actual cutting requirements, generally between 1-3 kW, providing sufficient power to drive the cutting blade. Preferably, the cutting assembly 400 adopts a serrated cutting design, with the cutting blade being a reciprocating serrated strip, enabling the cutting assembly 400 to better cut holly hedges.

[0028] The cutting component 400 can move along the arc-shaped track 310. Its working principle is as follows: the operator moves the moving mechanism 100 to one side of the holly hedge. At this time, the length direction of the frame 300 is perpendicular to the moving direction of the moving mechanism 100, and the cutting edge of the cutting component 400 faces the moving direction of the moving mechanism 100. The moving mechanism 100 moves towards the holly hedge at a set speed, during which the cutting component 400 continuously cuts the top of the holly hedge. When the moving mechanism 100 approaches the ash tree, the operator uses the control panel to align the open end of the arc-shaped track 310 on the frame 300 towards the ash tree. When the frame 300 is about to contact the ash tree, the moving mechanism 100 stops, while the cutting component 400 continues to cut the holly hedge at the set height. Then, the operator controls the cutting component 400 to slide along the arc-shaped track 310 via the control panel. During the sliding process, the cutting component 400 first rotates to one side of the ash tree and cuts the holly hedge located on one side of the ash tree along its movement path. Then, it moves along the curved track 310 to the other side of the ash tree and cuts the holly hedge along its movement path. After cutting, the cutting component 400 is moved to a position where its length direction is parallel to the length direction of the frame 300. Then, the frame 300 is rotated by the lifting rotary table 200, causing the frame 300 to simultaneously rotate and move the cutting component 400 to avoid the ash tree. When the frame 300 and the cutting component 400 no longer interfere with the ash tree, the moving mechanism 100 moves, causing the frame 300 and the cutting component 400 to pass over the ash tree. Finally, under the action of the lifting rotary table 200, the frame 300 rotates to a position where its length direction is perpendicular to the moving direction of the moving mechanism 100. As the moving mechanism 100 moves, the cutting component 400 continues to cut the top of the holly hedge.

[0029] By cooperating with the arc track 310 on the frame 300 and the cutting component 400, the top surface of the holly hedge on both sides of the ash tree can be cut during the movement of the moving mechanism 100. Then, the frame 300 is rotated by the lifting and turning platform 200 to avoid the ash tree, thus realizing efficient pruning of the holly hedge with interspersed ash trees. This solves the problem of multiple repetitive pruning or manual assisted pruning in the existing technology and greatly improves pruning efficiency.

[0030] Furthermore, the frame 300 is also equipped with a straight track 320. The connection method of the straight track 320 is the same as that of the curved track 310, such as welding or bolting. Both the straight track 320 and the curved track 310 can be L-shaped in cross-section, which provides sufficient support while effectively reducing weight. The two ends of the straight track 320 are welded or bolted to the two ends of the curved track 310, allowing the cutting component 400 to enter the straight track 320 when it moves to the end of the curved track 310. The straight track 320 enables the cutting component 400 to perform supplementary cutting on areas that the curved track 310 cannot cover, such as the edges of holly hedges or near the roots of ash trees. For example, after the holly hedges on both sides of the ash tree are cut on the curved track 310, the cutting component 400 enters the straight track 320, which can cut the bottom of the holly hedges on the side closest to the ash tree, ensuring the integrity of the overall pruning of the holly hedges, avoiding pruning dead corners, and making the pruned holly hedges neater and more beautiful.

[0031] refer to Figures 3-6 In some embodiments, a garden landscape pruning device further includes a limiting mechanism 500, which is installed on the frame 300 by welding or bolting and is located on the path of the straight track 320.

[0032] When the cutting component 400 moves along the straight track 320 toward the center of the arc track 310 (i.e., toward the ash tree), the limiting mechanism 500 can act as a stop to prevent the cutting component 400 from contacting the ash tree and thus causing damage to the ash tree or the cutting component 400.

[0033] The limiting mechanism 500 can be adjusted according to the specific location of the ash tree. This method allows for flexible adjustment of the sliding stroke of the cutting component 400 based on the actual layout of the holly hedges around different ash trees, ensuring that the cutting range is expanded as much as possible without colliding with the ash tree.

[0034] Furthermore, there are two limiting mechanisms 500, which can respectively limit the cutting component 400 from both sides of the ash tree. Both limiting mechanisms 500 are slidably mounted on the frame 300 via slide rails and are actively moved by a drive mechanism. The operator can control the two limiting mechanisms 500 to slide closer or further apart using control buttons on the control console. When the two limiting mechanisms 500 are close together, they can abut against both sides of the ash tree. Both limiting mechanisms 500 are located between the arc-shaped rails 310, which can prevent the limiting mechanisms 500 from interfering with the movement of the cutting component 400 on the arc-shaped rails 310.

[0035] The specific limiting mechanism 500 includes a sliding frame 510, an abutment member 520, and a limiting block 530. The sliding frame 510 has a rectangular frame structure and can slide on the frame 300 via a slide rail. The abutment member 520 has a rectangular plate structure; preferably, it is made of a rubber material with a certain degree of elasticity to avoid damage to the ash tree when it comes into contact with it. The abutment member 520 is fixed to the side of the sliding frame 510 closest to the ash tree using bolts or strong adhesive. The limiting block 530 is fixed to the sliding frame 510 by welding or bolting and is located on the moving path of the cutting assembly 400 along the linear track 320. Preferably, the sliding frame 510 extends through the frame 300, the abutment 520 is disposed on the portion of the sliding frame 510 above the frame 300, and the limiting block 530 is disposed on the portion of the sliding frame 510 below the frame 300, and the limiting block 530 is located between the cutting assembly 400 and the frame 300.

[0036] Before the cutting assembly 400 reaches the ash tree, the operating control movement mechanism 100 positions the two sliding frames 510 on either side of the ash tree. The two limiting frames are manually pushed or driven by the control drive device to slide on the frame 300, bringing them closer together until the abutment pieces 520 on the two limiting frames abut against the sides of the ash tree, at which point the sliding frames 510 stop moving. During the movement of the cutting assembly 400 along the straight track 320, as it approaches the ash tree, it first contacts the limiting block 530. The limiting block 530 prevents further movement of the cutting assembly 400. This ensures that the cutting assembly 400 will not collide with the ash tree during pruning, guaranteeing the safety and accuracy of the pruning work.

[0037] The position of the limiting block 530 is determined by the two sliding frames 510 driving the abutment 520 to abut against the side of the ash tree. The amount of movement of the cutting component 400 on the straight track 320 can be determined according to the actual size of the ash tree, so as to adapt to the pruning of holly hedges around different ash trees.

[0038] Furthermore, an automatic avoidance mechanism 600 is also provided between the frame 300 and the lifting rotary table 200. During the movement of the moving mechanism 100, the automatic avoidance mechanism 600 can cause the frame 300 to rotate and avoid the ash tree after it comes into contact with it. The working principle is as follows: when the cutting component 400 completes the trimming of the holly hedges on both sides of the ash tree along the arc track 310 and the track between them, and returns to the position where the length direction of the cutting component 400 is parallel to the length direction of the frame 300 (i.e., the cutting edge of the cutting component 400 faces the moving direction of the moving mechanism 100), the moving mechanism 100 drives the frame 300 to move and come into contact with the ash tree. Through the contact force between the frame 300 and the ash tree, the frame 300 can drive the cutting component 400 to automatically avoid the ash tree. Specifically, the automatic obstacle avoidance mechanism 600 includes a rotating base 610 and a first elastic reset member 620. The rotating base 610 is in the form of a disc, and its diameter is determined according to the connection requirements of the lifting rotary table 200 and the frame 300. An annular groove is machined on the rotating base 610 for installing the first elastic reset member 620. Several mounting holes are evenly distributed on the lower surface of the rotating base 610, which is fixedly connected to the lifting rotary table 200 by bolts, ensuring a firm and reliable connection between the rotating base 610 and the lifting rotary table 200. The frame 300 is rotatably connected to the rotating base 610 via an alloy steel shaft. The diameter of the shaft is determined according to the weight of the frame 300 and the rotation requirements. One end of the shaft is fixed to one end of the frame 300, which can be achieved by welding or keying. The other end of the shaft is inserted into a through hole in the center of the rotating base 610. A deep groove ball bearing is installed between the through hole and the shaft, allowing the frame 300 to rotate flexibly around the shaft on the rotating base 610.

[0039] The first elastic reset element 620 is a torsion spring. It is installed in an annular groove on the upper surface of the rotating seat 610. One end is fixed to the bottom of the groove by welding or gluing. The other end is in contact with the rotating shaft.

[0040] When the frame 300 comes into contact with the ash tree during movement, the frame 300 rotates around its axis under the force of the ash tree, compressing the first elastic reset member 620. After the frame 300 passes the ash tree, the first elastic reset member 620 releases its elastic potential energy, elastically pushing the frame 300 to rotate, returning it to the vertical extension direction of the moving mechanism 100 towards the holly hedge, so that the pruning work of the holly hedge can continue.

[0041] Furthermore, neither the arc track 310 nor the straight track 320 extends beyond the front edge of the frame 300, so as to ensure that the cutting component 400 can effectively cut around the ash tree, and to ensure that when the moving mechanism 100 moves, the front edge of the frame 300 first comes into contact with the ash tree.

[0042] The abutment member 520 is rotatably mounted on the sliding frame 510 via a rotating shaft. Both ends of the rotating shaft are fixed to support seats on both sides of the sliding frame 510, and the support seats are welded integrally with the sliding frame 510. The abutment member 520 has a central hole that fits with the rotating shaft, ensuring that the abutment member 520 can rotate freely around the rotating shaft. The second elastic reset member 540 is a torsion spring with an inner diameter matching the rotating shaft. During installation, it is fitted onto the rotating shaft, with one end fixed to the side of the sliding frame 510 and the other end connected to the side of the abutment member 520. The second elastic reset member 540 can store sufficient elastic potential energy when the frame 300 rotates to avoid the ash tree, and after the avoidance is completed, it can effectively elastically push the abutment member 520 to rotate to a position extending beyond the leading edge of the frame 300.

[0043] Working principle: During normal pruning, the second elastic reset member 540 is in its natural state, and the elastic push-abutment member 520 rotates to a position extending beyond the front edge of the frame 300. At this time, the abutment member 520, driven by the sliding frame 510, is located in front of the front edge of the frame 300. When the frame 300 approaches the ash tree, the ash tree first enters between the two abutment members 520 before contacting the front edge of the frame 300. After the frame 300 contacts the ash tree, the automatic avoidance mechanism 600 starts working, and the frame 300 rotates around the rotating seat 610 to avoid the ash tree. During this process, the contact force between the abutment member 520 and the ash tree causes the abutment member 520 to rotate around the rotating axis. The abutment member 520 rotates away from the center of the arc track 310 or extends beyond the front edge of the frame 300, thereby avoiding the ash tree and preventing interference with it. During the rotation of the abutment member 520, the second elastic reset member 540 (torsion spring) is twisted, storing elastic potential energy. After the frame 300 passes the ash tree, under the action of the first elastic reset member 620, the frame 300 rotates to the direction of the vertical extension of the moving mechanism 100 towards the holly hedge. At the same time, the second elastic reset member 540 releases the stored elastic potential energy, and the elastic push abutment member 520 rotates back to the position extending beyond the leading edge of the frame 300, preparing for the next possible abutment. At this time, the entire pruning device returns to the normal pruning state, and the moving mechanism 100 can continue to drive the frame 300 forward to prune the holly hedge.

[0044] The abutment 520 is rotatable and can be flexibly adjusted in position when the frame 300 avoids the ash tree, avoiding a hard collision between the abutment 520 and the ash tree, making the avoidance process of the frame 300 smoother and improving the adaptability of the pruning device in complex garden environments.

[0045] refer to Figure 4 and Figure 5In some embodiments, a garden landscape pruning device further includes a drive assembly 700, which is mounted on a frame 300. The drive assembly 700 drives the limiting mechanism 500 to slide. The drive assembly 700 includes a dual-axis rotation drive 710, a first screw 730, and a second screw 740. The dual-axis rotation drive 710 is a dual-axis motor, which is bolted to the frame 300. Shock-absorbing rubber pads are provided at the bolt connections to reduce the impact of vibrations generated during motor operation on the frame 300. Torque limiters 720 are mounted on the two drive ends of the dual-axis rotation drive 710 and are respectively connected to the first screw 730 and the second screw 740. The torque limiters 720 adopt a friction-type structure, mainly composed of an inner friction plate, an outer friction plate, a spring, and an adjusting nut. The inner friction plate is keyed to the drive end of the dual-axis rotation drive 710, and the outer friction plate is splined to the corresponding screw. When the transmitted torque exceeds the set value, relative sliding occurs between the inner and outer friction plates, thereby limiting the transmission of torque and protecting the drive device and screw. It should be further noted that the transmittable torque of the torque limiter should be less than the force capable of deforming the second elastic reset member 540.

[0046] The first screw 730 is threadedly connected to one sliding bracket 510, and the second screw 740 is threadedly connected to another sliding bracket 510, with the threads of the second screw 740 and the first screw 730 having opposite directions of rotation. Thus, when the dual-axis rotation drive 710 drives the two screws to rotate synchronously, the two sliding brackets 510 will move closer to or further away from each other. The first screw 730 and the second screw 740 are rotatably mounted on the frame 300 via bearing seats. The bearings are fixed to the frame 300 with bolts, ensuring smooth rotation of the first screw 730 and the second screw 740.

[0047] The torque limiter 720 enables the two sliding frames 510 to move differently. When the central axis of the ash tree is not on the symmetrical plane of the two sliding frames 510, or when the outer surface of the ash tree is not a regular cylinder, after one abutment 520 abuts against one side of the ash tree, the torque limiter 720 can prevent the sliding frame 510 from moving further by disconnecting the transmission, while the other abutment 520 that is not abutting against the ash tree can continue to move until it abuts against the side of the ash tree.

[0048] refer to Figure 3 and Figure 4In some embodiments, a garden landscape pruning device further includes a limit switch 750, which is mounted on the side of the sliding frame 510 near the rotating shaft of the abutment member 520. Mounting holes are pre-machined in the sliding frame 510, and the limit switch 750 is securely fixed to the sliding frame 510 with bolts, ensuring that the limit switch 750 will not loosen during device operation. The limit switch 750 is connected to the control circuit of the dual-axis rotation drive member 710 via a cable.

[0049] When the garden landscape pruning device is working normally, the abutment 520 is positioned at the front edge of the frame 300 under the action of the second elastic reset member 540. At this time, the limit switch 750 is not triggered, and the dual-axis rotation drive 710 is in standby mode. It can drive the limit mechanism 500 to slide according to the operator's instructions, adjusting the position of the abutment 520 so that it abuts against the ash tree. When the abutment 520 abuts against the side of the ash tree, the contact force between the abutment 520 and the ash tree drives the abutment 520 to rotate away from the center of the arc track 310. At this time, the abutment 520 triggers the limit switch 750. The limit switch 750 feeds back a signal to the control circuit of the dual-axis rotation drive 710. The control circuit controls the dual-axis rotation drive 710 to close the rotation of the corresponding axis to prevent the limit mechanism 500 from moving excessively, which would cause the cutting component 400 to collide with the ash tree.

[0050] Furthermore, the cutting assembly 400 includes a sliding frame 410 and a cutting strip 420. The sliding frame 410 is an integral frame shape, and a connecting rod is fixed to the top of the sliding frame 410 by bolts or welding. The top of the connecting rod is slidably connected to the arc-shaped track 310 and the linear track 320. At the front end of the sliding frame 410, several fixing teeth 411 are evenly distributed. The fixing teeth 411 are triangular or trapezoidal in shape.

[0051] The cutting strip 420 is mounted on the sliding frame 410 via a reciprocating mechanism. This reciprocating mechanism can be either a crank-slider mechanism or a linear motor driven mechanism. Taking the crank-slider mechanism as an example, the motor is fixed to one side of the sliding frame 410, and its output shaft is connected to the crank via a coupling. The other end of the crank is connected to the slider via a connecting rod, and the slider is fixed to the cutting strip 420. When the motor starts, it drives the crank to perform circular motion, which is then converted into linear reciprocating motion of the slider and the cutting strip 420 via the connecting rod. The linear motor driven mechanism is more direct. The mover of the linear motor is connected to the cutting strip 420, and the stator is fixed to the sliding frame 410. By controlling the direction and magnitude of the current in the linear motor, the reciprocating movement of the cutting strip 420 is achieved. Both methods ensure efficient and stable reciprocating motion of the cutting strip 420 on the sliding frame 410.

[0052] The movable teeth 421 on the cutting strip 420 correspond to the fixed teeth 411. The movable teeth 421 are also triangular or trapezoidal in shape, enabling them to generate effective shearing force with the fixed teeth 411. The movable teeth 421 are installed at the front end of the cutting strip 420 and are arranged alternately with the fixed teeth 411. During the cutting process, the movable teeth 421 move back and forth with the cutting strip 420, cooperating with the fixed teeth 411 to cut the branches and leaves of the holly hedge.

[0053] refer to Figures 7-10 In some embodiments, a garden landscape pruning device further includes a single-axis rotation drive 430, a linear drive 450, and a third elastic reset component 460. The single-axis rotation drive 430 is a small DC motor, suitable for mounting on the sliding frame 410. The single-axis rotation drive 430 is connected to the drive wheel 440 via a coupling to ensure stable power transmission. The drive wheel 440 is made of rubber with anti-slip textured surfaces to increase friction with the curved track 310 and ensure transmission efficiency. The wheel diameter is selected based on the size of the sliding frame 410 and the curvature of the curved track 310. Two linear drives 450 are provided, which can be electric actuators or cylinders. The two linear drives 450 are respectively mounted on the frame 300, located on opposite sides of the curved track 310. Mounting holes are pre-machined in the frame 300, and the fixed end of the electric actuator is securely fixed to the frame 300 with bolts. To cooperate with the linear drive 450, a baffle 470 is provided on the sliding frame 410 away from the axis of the arc track 310. When the sliding frame 410 moves to the end of the arc track 310, the baffle 470 is located on the telescopic end path of the linear drive 450, so that the linear drive 450 can push the sliding frame 410 to move along the straight track 320, so that the cutting assembly 400 can cut the holly hedge close to the ash tree.

[0054] The third elastic reset element 460 is a compression spring. One end of the third elastic reset element 460 is fixed to the side of the sliding frame 410 by hooking or welding, and the other end is fixed to a corresponding position on the frame 300. When the linear drive element 450 pushes the sliding frame 410 to move closer to the ash tree, the third elastic reset element 460 is compressed and stores elastic force. When the linear drive element 450 retracts, the third elastic reset element 460 elastically pushes the sliding frame 410 to slide towards the intersection of the arc track 310 and the straight track 320, so that the sliding frame 410 can slide along the arc track 310 under the drive of the single-axis rotation drive element 430.

[0055] Working principle: The operator starts the moving mechanism 100, moving it along one side of the holly hedge. At this time, the length direction of the frame 300 is perpendicular to the moving direction of the moving mechanism 100, and the cutting edge of the cutting component 400 faces the moving direction, advancing at a set speed and continuously cutting the top of the holly hedge. When the moving mechanism 100 approaches the ash tree, the operator uses the control console to turn the open end of the arc track 310 on the frame 300 towards the ash tree. The moving mechanism 100 stops just before the frame 300 contacts the ash tree, while the cutting component 400 continues cutting at the set height. The dual-axis rotation drive 710 in the drive component 700 drives the first and second screws 740 to rotate synchronously. Because the screw threads rotate in opposite directions, the two sliding frames 510 drive the abutment 520 and the limit block 530 to move closer or further apart. After the abutment 520 contacts the ash tree, it triggers the limit switch 750. The controller controls the dual-axis rotation drive 710 to close the corresponding axis rotation, preventing the limit mechanism 500 from moving excessively. The control cutting assembly 400 slides along the arc-shaped track 310, first rotating to the side of the ash tree. The linear drive members 450 at both ends of the arc-shaped track 310 push the push plate on the sliding frame 410, causing the sliding frame 410 to enter the straight track 320 and approach the limiting mechanism 500, so as to cut the holly hedge close to the ash tree. When the linear drive member 450 retracts, the compressed third elastic reset member 460 elastically pushes the sliding frame 410 towards the intersection of the arc-shaped track 310 and the straight track 320. Then, driven by the single-axis rotation drive member 430, the sliding frame 410 slides along the arc-shaped track 310 through the transmission abutment of the drive wheel 440, continuing to cut the holly hedge on the other side of the ash tree.

[0056] After the cutting assembly 400 completes the pruning and repositioning of the holly hedges on both sides of the ash tree, the moving mechanism 100 drives the frame 300 to contact the ash tree. The frame 300 rotates around its axis under the force of the ash tree, compressing the first elastic repositioning member 620 on the rotating seat 610. After the frame 300 passes the ash tree, the first elastic repositioning member 620 releases its elastic potential energy, causing the frame 300 to return to the vertical extension direction of the moving mechanism 100 towards the holly hedge, continuing the pruning. During this process, the contact member 520 is rotatably mounted on the sliding frame 510 via a rotating axis. When the frame 300 avoids the ash tree, the contact member 520 rotates around its axis under the contact force of the ash tree, avoiding interference with the ash tree, while simultaneously twisting the second elastic repositioning member 540 to store elastic potential energy. After the frame 300 passes the ash tree, the second elastic repositioning member 540 releases its elastic potential energy, causing the contact member 520 to return to its initial position, preparing for the next contact.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A garden landscape trimming device, characterized in that, include: The moving mechanism (100) is equipped with a lifting and rotating platform (200). A frame (300) is mounted on the lifting rotary table (200). The frame (300) can rotate under the drive of the lifting rotary table (200) to avoid the ash trees planted in the holly hedge. An arc track (310) is provided on the frame (300). The arc track (310) has an opening in the direction of movement of the moving mechanism (100). A cutting component (400) is slidably disposed on the arc-shaped track (310). The cutting component (400) is movable along the arc-shaped track (310) to rotate around the ash tree and cut the top surface of the holly hedge on both sides of the ash tree. After the cutting assembly (400) completes the cutting of the top surface of the holly hedge on both sides of the ash tree, the lifting rotary table (200) can drive the frame (300) to rotate so that the frame (300) can avoid the ash tree during the movement of the moving mechanism (100). The frame (300) is also provided with a straight track (320), and the two ends of the straight track (320) are respectively connected to the two ends of the arc track (310), so that the cutting component (400) can enter the straight track (320) after moving to the end of the arc track (310), and the cutting component (400) can slide along the straight track (320) to approach or move away from the center of the arc track (310); A limiting mechanism (500) is disposed on the frame (300) and is used to abut against the cutting assembly (400) to limit the sliding range of the cutting assembly (400) within the linear track (320); The limiting mechanism (500) has two parts, both of which are slidably mounted on the frame (300). The two limiting mechanisms (500) can slide close to each other. The limiting mechanism (500) includes: A sliding frame (510) is slidably mounted on the frame body (300); Abutment (520) is provided on the sliding frame (510), and the abutment (520) of the two sliding frames (510) can slide towards each other to press against the two sides of the ash tree; A limiting block (530) is provided on the sliding frame (510) and located on the side of the sliding frame (510) away from the abutment (520). The limiting block (530) can prevent the cutting assembly (400) from sliding along the straight track (320) towards the ash tree. An automatic avoidance mechanism (600) is also provided between the frame (300) and the lifting rotary table (200). During the movement of the moving mechanism (100), the automatic avoidance mechanism (600) can rotate the frame (300) to avoid the ash tree after the frame (300) comes into contact with it. The automatic avoidance mechanism (600) includes: A rotating seat (610) is provided on the lifting rotary table (200). The frame (300) is rotatably connected to the rotating seat (610) via a rotating shaft. A first elastic reset member (620) is sleeved on the rotating shaft. One end of the first elastic reset member (620) is connected to the lifting rotary table (200), and the other end is connected to the frame (300). The first elastic reset member (620) is used to elastically pull back the frame (300) to reset after the frame (300) follows the moving mechanism (100) past the previous ash tree so that the frame (300) can abut against the next ash tree. The cutting assembly (400) includes a sliding frame (410) with an upwardly extending baffle (470) on the sliding frame (410), and the garden landscape trimming device also includes; A single-axis rotation drive (430) is disposed on the sliding frame (410). The driving end of the single-axis rotation drive (430) is provided with a drive wheel (440) with the main shaft arranged in the up and down direction. The drive wheel (440) rolls with the arc track (310). The drive wheel (440) can rotate to drive the sliding frame (410) to move along the arc track (310). Two linear drive members (450) are provided, both of which are disposed on the frame (300). The two linear drive members (450) are respectively located at both ends of the arc track (310). When the sliding frame (410) slides to the end of the arc track (310), the linear drive member (450) can push the baffle (470) so that the sliding frame (410) slides into the straight track (320) and approaches the limiting mechanism (500). The third elastic reset member (460) acts on the sliding frame (410) and the frame body (300) at both ends respectively. The third elastic reset member (460) is used to elastically push the sliding frame (410) so that the sliding frame (410) slides away from the linear track (320).

2. A garden landscape trimming device according to claim 1, characterized in that The arc-shaped track (310) and the straight track (320) do not exceed the front edge of the frame (300). The abutment (520) is rotatably mounted on the sliding frame (510). The abutment (520) can rotate away from the center of the arc-shaped track (310) or extend beyond the front edge of the frame (300) so that the abutment (520) can rotate to avoid the ash tree during the process of the frame (300) rotating. A second elastic reset member (540) is provided between the abutment (520) and the sliding frame (510). The second elastic reset member (540) can elastically push the abutment (520) to rotate to a position extending beyond the front edge of the frame (300) so that before the front edge of the frame (300) abuts against the ash tree, the abutment (520) can abut against the ash tree under the drive of the sliding frame (510).

3. A garden landscape trimming device according to claim 1, characterized in that, It also includes a drive assembly (700) disposed on the frame (300), the drive assembly (700) being used to drive the limiting mechanism (500) to slide, the drive assembly (700) comprising: A dual-axis rotation drive (710) is provided on the frame (300). The dual-axis rotation drive (710) has two coaxially arranged drive ends, and each of the two drive ends is provided with a torque limiter (720). The first screw (730) is rotatably mounted on the frame (300), the first screw (730) is threadedly connected to one of the sliding frames (510), and the first screw (730) is drive-connected to one of the torque limiters (720); The second screw (740) is rotatably mounted on the frame (300). The second screw (740) is threadedly connected to another sliding frame (510). The second screw (740) is also drivenly connected to another torque limiter (720). The threads of the second screw (740) and the first screw (730) are opposite in direction. The second screw (740) and the first screw (730) are respectively used to drive the two sliding frames (510) to move closer to each other or further away from each other.

4. A garden landscape trimming device according to claim 3, wherein Also includes: A limit switch (750) is disposed on the sliding frame (510). The limit switch (750) is electrically connected to the dual-axis rotation drive (710) and is used to detect the position parameters of the abutment (520) to control the opening and closing of the dual-axis rotation drive (710). The abutment (520) can trigger the limit switch (750) when rotating away from the center of the arc track (310) so as to start or stop the dual-axis rotation drive (710) by means of the limit switch (750).

5. The garden landscape trimming device according to claim 1, characterized in that, The sliding frame (410) is slidably engaged with the arc-shaped track (310) or the straight track (320) and is located below the frame body (300). The sliding frame (410) has a plurality of fixed teeth (411). A cutting strip (420) is reciprocatingly mounted on the sliding frame (410). The cutting strip (420) has a movable tooth (421). The movable tooth (421) can cooperate with the fixed tooth (411) under the drive of the cutting strip (420) to cut holly hedges.

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