Rotary adjusting type hedge trimmer

Abstract

The utility model relates to the technical field of landscaping machinery, in particular to a rotary adjusting type hedge trimmer which comprises a second rotary table, a bottom plate, a telescopic guide rod and a connecting rod, and a first driving mechanism and a second driving mechanism are arranged on the bottom plate; the end part of the probing guide rod is rotatably connected with a rotating block, the rotating block is fixedly connected with a movable rod, the end part of the connecting rod is rotatably connected with a head swinging guide rod, the end part of the head swinging guide rod is rotatably connected with the tail part of the movable rod, the front end of the movable rod is connected with a connecting frame, and the connecting frame is connected with a machine head for trimming; through cooperative control of the dual-driving mechanism, the axial displacement response speed of the machine head and the tail end positioning precision are improved, the comprehensive trimming efficiency is improved compared with that of a traditional single-degree-of-freedom machine, a three-dimensional polar coordinate motion system is constructed through cooperation of the machine head and the single-degree-of-freedom machine, multi-degree-of-freedom composite motion of the axial telescopic stroke, the pitching angle and the horizontal rotation angle is achieved, and the comprehensive trimming efficiency is improved. Millimeter-level shape control of complex curved surface modeling can be achieved, and the requirement for accurate forming of special-shaped hedges in landscape engineering is met.

Description

A rotating adjustable hedge trimmer Technical Field

[0001] This utility model relates to the field of landscaping machinery technology, specifically to a rotating adjustable hedge trimmer. Background Technology

[0002] Existing hedge trimming equipment generally suffers from technical defects such as limited freedom of movement and insufficient shaping precision. Traditional models mostly use single-degree-of-freedom telescopic or swinging structures, and the working envelope space is usually less than 2m. 3 The existing technology cannot meet the operational requirements of modern landscape engineering for curved surface shaping. According to test data from the "Performance Test Method for Garden Machinery Hedge Trimmers," conventional equipment generally exhibits a trajectory deviation exceeding 15mm during curved surface trimming, and shape transformation requires manual intervention and adjustment, leading to decreased operational efficiency. Particularly for artistic shapes such as Baroque spirals and fractal geometry, existing technology requires step-by-step operation for axial displacement and angle adjustment, resulting in posture coordination errors and failing to meet the shaping requirements of various complex curved hedge surfaces. Summary of the Invention

[0003] I. Technical problems to be solved

[0004] The purpose of this invention is to provide a rotary adjustable hedge trimmer that can accurately and quickly shape various complex hedge surfaces.

[0005] II. Technical Solution

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model proposes a rotary adjustable hedge trimmer, including a second turntable, a base plate fixedly connected to the second turntable, and a probe guide rod and a connecting rod forming a coaxial rotary pair. The base plate is provided with a first driving mechanism and a second driving mechanism for driving the probe guide rod and the connecting rod to rotate, respectively. A rotating block is rotatably connected to the end of the probe guide rod, and a movable rod is fixedly connected to the rotating block. A swing head guide rod is rotatably connected to the end of the connecting rod, and the end of the swing head guide rod is rotatably connected to the tail of the movable rod. A connecting frame is connected to the front end of the movable rod, and a trimming head is connected to the connecting frame.

[0008] Furthermore, a left side plate and a right side plate are fixedly connected to both sides of the base plate, and a first rotating wheel and a second rotating wheel are rotatably connected to the right side plate and the left side plate, respectively. The first rotating wheel is fixedly connected to the probe guide rod, and the second rotating wheel is fixedly connected to the connecting rod. The first driving mechanism drives the first rotating wheel to rotate, and the second driving mechanism drives the second rotating wheel to rotate. The first driving mechanism and the second driving mechanism have the same structure, both including a motor and a driving wheel connected to the output end of the motor. The first rotating wheel and the second rotating wheel are both driven wheels that rotate under the drive wheel.

[0009] Furthermore, the first wheel, the second wheel, and the drive wheel are all belt pulleys, and the first wheel and the second wheel are respectively connected to the drive wheel via belts; or, the first wheel and the second wheel are gears that mesh with the drive wheel for transmission; or, the first wheel, the second wheel, and the drive wheel are all sprockets, and the first wheel and the second wheel are respectively connected to the drive wheel via chains.

[0010] Furthermore, it also includes a linkage assembly, which includes a linkage block rotatably connected to the outside of the rotating block, a first linkage rod, and a second linkage rod. The two ends of the first linkage rod are rotatably connected to the right side plate and one end of the linkage block, respectively. The two ends of the second linkage rod are rotatably connected to the other end of the linkage block and the connecting frame, respectively. The front end of the movable rod is rotatably connected to the connecting frame.

[0011] Furthermore, it also includes a first turntable, a bracket, and a cylinder. The bracket is fixedly connected to the first turntable, and the upper end of the bracket is hinged to the base of the second turntable. The tail of the cylinder is hinged to the lower part of the bracket, and the telescopic end is hinged to the base of the first turntable.

[0012] Furthermore, angle sensors are fixedly connected to opposite sides of the left and right side plates, and the two angle sensors are used to detect the rotation angle of the first and second rotating wheels, respectively.

[0013] III. Beneficial Effects

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] 1. This utility model uses a first drive mechanism to control the telescopic guide rod to significantly adjust the position of the machine head, and a second drive mechanism to control the rotation of the connecting rod to precisely control the position and swing of the mechanism. Through the coordinated control of the two drive mechanisms, the axial displacement response speed of the machine head is improved and the end-positioning accuracy is enhanced. The overall pruning efficiency is improved compared with traditional single-degree-of-freedom models. Furthermore, the two work together to construct a three-dimensional polar coordinate motion system, realizing multi-degree-of-freedom composite motion of axial extension stroke, pitch angle, and horizontal rotation angle. This effectively expands the range and angle of the machine head's movement, enabling millimeter-level shape control of complex curved surfaces and meeting the precise shaping requirements of irregular hedges in landscape engineering.

[0016] 2. The cylinder extends and retracts, causing the first turntable to rotate and changing the height of the machine head. The rotation of the first turntable changes the orientation of the machine head. The extension guide rod and the swing guide rod rotate to precisely adjust the position of the machine head, realizing multi-angle and multi-degree-of-freedom adjustment of the machine head position. With the pre-set electronic control program, the movement path of the machine head can be controlled in a patterned manner to meet the needs of batch pruning of hedges with uniform shapes. Attached Figure Description

[0017] Figure 1 is a three-dimensional structural diagram of this utility model;

[0018] Figure 2 is a partial exploded view of this utility model;

[0019] 1. First turntable; 2. Support; 3. Cylinder; 4. Second turntable; 5. Probing guide rod; 6. Connecting rod; 7. Rotating block; 8. Movable rod; 9. Swinging head guide rod; 10. Connecting frame; 11. Machine head; 12. Base plate; 13. Left side plate; 14. Right side plate; 15. First rotating wheel; 16. Second rotating wheel; 17. Motor; 18. Drive wheel; 19. Linkage assembly; 191. Linkage block; 192. First linkage rod; 193. Second linkage rod; 20. Angle sensor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] A rotating adjustable hedge trimmer, as shown in Figure 1, includes a second turntable 4, a base plate 12 fixedly connected to the second turntable 4, a retractable guide rod 5 and a connecting rod 6 forming a coaxial rotary pair. The base plate 12 is provided with a first drive mechanism and a second drive mechanism. The first drive mechanism drives the retractable guide rod 5 to rotate, and the second drive mechanism drives the connecting rod 6 to rotate. A rotating block 7 is rotatably connected to the end of the retractable guide rod 5, and a movable rod 8 is fixedly connected to the rotating block 7. A swing head guide rod 9 is rotatably connected to the end of the connecting rod 6. The end of the swing head guide rod 9 is rotatably connected to the tail of the movable rod 8. A connecting frame 10 is connected to the front end of the movable rod 8, and a machine head 11 for trimming hedges is connected to the connecting frame 10. When the first drive mechanism rotates the telescopic guide rod 5, the telescopic guide rod 5 drives the rotating block 7, the movable rod 8, and the connecting frame 10 to extend or retract, significantly adjusting the distance between the trimmer and the hedge. Meanwhile, when the second drive mechanism rotates the connecting rod 6, the connecting rod 6 drives the swing head guide rod 9 to rotate, which in turn drives the rotating block 7 and the movable rod 8 to swing up and down, thereby controlling the connecting frame 10 and the trimmer head 11 to swing up and down, reciprocating the trimming of the hedge surface. By controlling the telescopic guide rod 5 to significantly adjust the position of the trimmer head 11, and coordinating with the second drive mechanism to control the rotation of the connecting rod 6, the position and swing of the mechanism are precisely controlled. Through the coordinated control of the two drive mechanisms, the axial displacement response speed of the trimmer head 11 is improved, and the end-positioning accuracy is enhanced. The overall trimming efficiency is higher than that of traditional single-degree-of-freedom models. Furthermore, the two mechanisms work together to construct a three-dimensional polar coordinate motion system, achieving multi-degree-of-freedom composite motion of axial extension stroke, pitch angle, and horizontal rotation angle. This effectively expands the range and angle of motion of the trimmer head 11, enabling millimeter-level shape control of complex curved surfaces, meeting the precise shaping requirements of irregularly shaped hedges in landscape engineering.

[0022] In one embodiment of this utility model, a left side plate 13 and a right side plate 14 are fixedly connected to both sides of the base plate 12. A first rotating wheel 15 and a second rotating wheel 16 are rotatably connected to the right side plate 14 and the left side plate 13, respectively. The first rotating wheel 15 is fixedly connected to the probe guide rod 5, and the second rotating wheel 16 is fixedly connected to the connecting rod 6. A first driving mechanism drives the first rotating wheel 15 to rotate, and a second driving mechanism drives the second rotating wheel 16 to rotate. The first rotating wheel 15 drives the probe guide rod 5 to rotate, and the second rotating wheel 16 drives the connecting rod 6 to rotate. The first driving mechanism and the second driving mechanism have the same structure, both including a motor 17 and a driving wheel 18 connected to the output end of the motor 17. The first rotating wheel 15 and the second rotating wheel 16 are both driven wheels that are driven by the driving wheel 18.

[0023] In this configuration, the first rotating wheel 15, the second rotating wheel 16, and the driving wheel 18 are all belt pulleys. The first rotating wheel 15 and the second rotating wheel 16 are respectively connected to the driving wheel 18 via belts. The belts are wrapped around the outside of the first rotating wheel 15 and the driving wheel 18, and around the outside of the second rotating wheel 16 and the driving wheel 18. The rotation of the driving wheel 18 drives the belt, which in turn drives the first rotating wheel 15 and the second rotating wheel 16 to rotate. Alternatively, the first rotating wheel 15 and the second rotating wheel 16 can also be gears that mesh with the driving wheel 18. The driving wheel 18 is also a gear, and the first rotating wheel 15 and the second rotating wheel 16 rotate through gear transmission. Or, the first rotating wheel 15, the second rotating wheel 16, and the driving wheel 18 can all be sprockets. The first rotating wheel 15 and the second rotating wheel 16 are respectively connected to the driving wheel 18 via chains. The chains mesh and are wound between the first rotating wheel 15 and the driving wheel 18, and between the second rotating wheel 16 and the driving wheel 18. The chains drive the first rotating wheel 15 and the second rotating wheel 16 to rotate.

[0024] This utility model also includes a linkage assembly 19, which includes a linkage block 191 rotatably connected to the outside of the rotating block 7, a first linkage rod 192, and a second linkage rod 193. The two ends of the first linkage rod 192 are rotatably connected to the right side plate 14 and one end of the linkage block 191, respectively. The two ends of the second linkage rod 193 are rotatably connected to the other end of the linkage block 191 and the connecting frame 10, respectively. The front end of the movable rod 8 is rotatably connected to the connecting frame 10. When the rotating block 7 rotates, the connecting frame 10, the first linkage rod 192, the second linkage rod 193, and the linkage block 191 rotate synchronously, ensuring the stability and flexibility of the connecting frame 10's rotation, thereby improving the smoothness and flexibility of the machine head 11's operation.

[0025] This utility model also includes a first turntable 1, a bracket 2, and a cylinder 3. The bracket 2 is fixedly connected to the first turntable 1, and its upper end is hinged to the base of the second turntable 4. The tail of the cylinder 3 is hinged to the lower part of the bracket 2, and its telescopic end is hinged to the base of the first turntable 1. The telescopic extension of the cylinder 3 drives the first turntable 1 to rotate, thereby changing the height at which the machine head 11 is raised. The rotation of the first turntable 1 changes the orientation of the machine head 11. The retraction guide rod 5 and the swing guide rod 9 rotate to precisely adjust the position of the machine head 11, achieving multi-angle and multi-degree-of-freedom adjustment of the position of the machine head 11. With the help of a pre-set electronic control program, the movement path of the machine head 11 can be controlled in a patterned manner, uniformly and quickly pruning a large number of hedges into the same shape.

[0026] Angle sensors 20 are fixedly connected to the opposite sides of the left side plate 13 and the right side plate 14, respectively. The two angle sensors 20 are used to detect the rotation angle of the first rotating wheel 15 and the second rotating wheel 16, thereby accurately controlling the position of the machine head 11.

[0027] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A rotary adjustable hedge trimmer, characterized in that, The device includes a second turntable, a base plate fixedly connected to the second turntable, and a probe guide rod and a connecting rod forming a coaxial rotary pair. The base plate is provided with a first drive mechanism and a second drive mechanism for driving the probe guide rod and the connecting rod to rotate, respectively. A rotating block is rotatably connected to the end of the probe guide rod, and a movable rod is fixedly connected to the rotating block. A swing head guide rod is rotatably connected to the end of the connecting rod, and the end of the swing head guide rod is rotatably connected to the tail of the movable rod. A connecting frame is connected to the front end of the movable rod, and a trimming head is connected to the connecting frame.

2. The rotating adjustable hedge trimmer according to claim 1, characterized in that, A left side plate and a right side plate are fixedly connected to both sides of the base plate. A first rotating wheel and a second rotating wheel are rotatably connected to the right side plate and the left side plate, respectively. The first rotating wheel is fixedly connected to the probe guide rod, and the second rotating wheel is fixedly connected to the connecting rod. The first driving mechanism drives the first rotating wheel to rotate, and the second driving mechanism drives the second rotating wheel to rotate. The first driving mechanism and the second driving mechanism have the same structure, both including a motor and a driving wheel connected to the output end of the motor. The first rotating wheel and the second rotating wheel are both driven wheels that rotate under the drive wheel.

3. The rotating adjustable hedge trimmer according to claim 2, characterized in that, The first wheel, the second wheel, and the driving wheel are all belt pulleys, and the first wheel and the second wheel are respectively connected to the driving wheel via belts; or, the first wheel and the second wheel are gears that mesh with the driving wheel for transmission; or, the first wheel, the second wheel, and the driving wheel are all sprockets, and the first wheel and the second wheel are respectively connected to the driving wheel via chains.

4. The rotating adjustable hedge trimmer according to claim 2, characterized in that, It also includes a linkage assembly, which includes a linkage block rotatably connected to the outside of the rotating block, a first linkage rod, and a second linkage rod. The two ends of the first linkage rod are rotatably connected to the right side plate and one end of the linkage block, respectively. The two ends of the second linkage rod are rotatably connected to the other end of the linkage block and the connecting frame, respectively. The front end of the movable rod is rotatably connected to the connecting frame.

5. A rotary adjustable hedge trimmer according to claim 1, characterized in that, It also includes a first turntable, a bracket, and a cylinder. The bracket is fixedly connected to the first turntable, and the upper end of the bracket is hinged to the base of the second turntable. The tail of the cylinder is hinged to the lower part of the bracket, and the telescopic end is hinged to the base of the first turntable.

6. A rotating adjustable hedge trimmer according to claim 2, characterized in that, Angle sensors are fixedly connected to opposite sides of the left and right side plates, and the two angle sensors are used to detect the rotation angle of the first and second rotating wheels, respectively.

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