Hedge trimming equipment

Abstract

The invention relates to the field of gardening tools, and particularly discloses hedge trimming equipment which comprises a rod body, a machine head assembly assembled at the end of the rod body, a motor assembly arranged on the machine head assembly and a shearing mechanism connected with the motor assembly, and the motor assembly outputs shearing power to the shearing mechanism; the operation plane P1 of the shearing mechanism is matched with the to-be-trimmed surface of the hedge to form a trimming operation plane P2; when the side surface of the hedge is trimmed, the operation plane P1 of the shearing mechanism is kept in parallel contact with the trimming operation plane P2, an operator moves to drive the shearing mechanism to do plane type trimming motion along the trimming operation plane P2, and trimming at a first operation height h1 is completed; an angle adjusting mechanism is arranged between the shearing mechanism and the machine head assembly, the included angle between the shearing mechanism and the rod body is changed through the angle adjusting mechanism, the operation plane P1 of the shearing mechanism is kept in parallel contact with the surface of the second operation height h2, and multi-level continuous pruning operation can be achieved.

Description

Technical Field

[0001] This application relates to the field of gardening tools, and particularly to a hedge trimming device. Background Art

[0002] There are many inconveniences and inefficiencies in the use of hedge trimmers. When trimming hedges, users need to repeatedly swing their arms to raise and lower the trimmer while walking along the hedge. Such repetitive actions not only consume physical strength but also easily cause user fatigue.

[0003] Through understanding of related technologies, for the end connecting rod of the trimming cutter head of some hedge trimmers, during use, in order to achieve a better trimming effect, the trimming cutter head of the hedge trimmer needs to be adjusted to a certain angle with the rod body. This design will generate torsional loads on the rod body, and users need to continuously resist this torsional force during trimming, further increasing the operation difficulty and fatigue.

[0004] In addition, the machine head assembly and the trimming cutter head of this trimmer will contact the hedge simultaneously during trimming. When the user swings the hedge trimmer back and forth, the machine head assembly generates resistance to the trimming process, reducing the trimming efficiency. Summary of the Invention

[0005] The purpose of at least one specific embodiment of the present invention is to solve the defects existing in the prior art and provide a hedge trimming device.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A hedge trimming device, comprising:

[0008] A rod body;

[0009] A machine head assembly assembled at the end of the rod body;

[0010] A motor assembly arranged on the machine head assembly;

[0011] A shearing mechanism connected to the motor assembly, and the motor assembly outputs shearing power to the shearing mechanism;

[0012] The connection node between the motor assembly and the shearing mechanism is arranged in the middle area of the shearing mechanism, and the working plane of the shearing mechanism is adapted to the surface of the hedge to be trimmed to form a trimming working surface;

[0013] When performing the trimming operation on the surface of the hedge, the operator holds the rod body facing the trimming working surface, keeps the working plane of the shearing mechanism in parallel contact with the trimming working surface, and drives the shearing mechanism to perform a planar trimming movement along the trimming working surface through the forward movement of the operator to complete the trimming of the first working height;

[0014] An angle adjustment mechanism is provided between the shearing mechanism and the machine head assembly. When trimming at the second working height, the rod body is adjusted to the corresponding height, and the included angle between the shearing mechanism and the rod body is changed through the hinge mechanism to maintain the working plane of the shearing mechanism in parallel contact with the surface at the second working height, realizing multi-level continuous trimming operations.

[0015] Furthermore, the shearing mechanism is located on one side of the machine head assembly. In the direction perpendicular to the working plane of the shearing mechanism, there is a height difference between the shearing mechanism and the machine head assembly. When performing hedge surface trimming operations, the shearing mechanism first approaches the trimming working surface, and the machine head assembly is located behind the working plane of the shearing mechanism.

[0016] Furthermore, the shearing mechanism and the angle adjustment mechanism are respectively located on both sides of the central axis of the rod body, so that the weights on both sides of the rod body are balanced.

[0017] Furthermore, the shearing mechanism includes trimming cutter heads that extend towards both sides of the connection node.

[0018] Furthermore, the machine head assembly includes a housing installed at the end of the rod body, and both the motor assembly and the angle adjustment mechanism are installed on the housing.

[0019] Furthermore, the angle adjustment mechanism includes:

[0020] An angle adjustment motor, which is installed on the housing;

[0021] A worm, which is connected to the power output end of the angle adjustment motor;

[0022] A worm gear, which meshes with the worm;

[0023] A rotating shaft, which is rotatably installed on the housing, with one end connected to the worm gear and the other end connected to the motor assembly;

[0024] The angle adjustment motor drives the worm gear to rotate through the worm, and the worm gear drives the motor assembly and the shearing mechanism to rotate through the rotating shaft to achieve angle adjustment.

[0025] Furthermore, at least one of the angle adjustment motor, the worm, and the worm gear is respectively located on both sides of the central axis of the rod body relative to the trimming cutter head, so that the weights on both sides of the rod body are balanced.

[0026] Furthermore, the motor assembly includes an installation housing, a working motor arranged inside the installation housing, a transmission connected to the output end of the working motor, the power output end of the transmission is connected to the trimming cutter head, and the installation housing is connected to the rotating shaft.

[0027] Furthermore, a first switch and a second switch are provided on the rod body. The first switch is suitable for controlling the opening and closing of the working motor, and the second switch is suitable for controlling the opening and closing of the angle adjustment motor;

[0028] During the process of the working motor driving the pruning cutter head to operate, the angle adjustment motor can synchronously drive the pruning cutter head to perform angle adjustment.

[0029] Furthermore, the rotation angle of the pruning cutter head can achieve stepless speed regulation.

[0030] Furthermore, a power source is installed on the rod body, and the power source is electrically connected to the working motor and the angle adjustment motor.

[0031] The beneficial effects of this application are as follows: 1. By optimizing the connection method between the shearing mechanism and the head assembly, when performing the surface pruning operation of the hedge, the operator holds the rod body facing the pruning operation surface. At the same time, the working plane of the shearing mechanism always maintains parallel contact with the surface of the hedge to be trimmed. The user only needs to hold the rod body and move along the pruning operation surface to complete the pruning, without repeatedly swinging the arm to lift and lower the equipment, significantly reducing the operation intensity and improving the user comfort;

[0032] 2. By setting the angle adjustment mechanism, the user can adjust the included angle between the shearing mechanism and the rod body without stopping the pruning, realizing multi-level continuous pruning operations, and greatly improving the pruning efficiency;

[0033] 3. The shearing mechanism and the angle adjustment mechanism are respectively arranged on both sides of the central axis of the rod body, making the weights on both sides of the equipment balanced, effectively reducing the torsional load on the rod body, and making the operation more relaxed and stable;

[0034] 4. The shearing mechanism is arranged on one side of the head assembly, so that the shearing mechanism first approaches the pruning operation surface, and the head assembly is located behind the working plane of the shearing mechanism, avoiding the direct interference of the head assembly on the pruning process, and improving the smoothness and efficiency of pruning;

[0035] 5. The user can adjust the rotation angle of the pruning cutter head in real time during the pruning process without stopping the operation or loosening the equipment, simplifying the operation process and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a structural schematic diagram of this application.

[0038] Figure 2 It is a cross-sectional schematic diagram of this application.

[0039] Figure 3This is the usage state diagram of the present application under the first working condition.

[0040] Figure 4 This is a schematic diagram of the included angle between the working plane of the shearing mechanism and the central axis of the rod body of the present application under the first working condition.

[0041] Figure 5 This is the usage state diagram of the present application under the second working condition.

[0042] Figure 6 This is a schematic diagram of the included angle between the working plane of the shearing mechanism and the central axis of the rod body of the present application under the second working condition.

[0043] Figure 7 This is the usage state diagram of the present application under the third working condition.

[0044] Figure 8 This is a schematic diagram of the included angle between the working plane of the shearing mechanism and the central axis of the rod body of the present application under the third working condition.

[0045] Figure 9 This is the usage state diagram of the present application under the fourth working condition.

[0046] Figure 10 This is a schematic diagram of the included angle between the working plane of the shearing mechanism and the central axis of the rod body of the present application under the fourth working condition.

[0047] Figure 11 This is a side schematic diagram of the present application during use.

[0048] Figure 12 This is a front schematic diagram of the present application during use.

[0049] Figure 13 This is an assembly schematic diagram of the motor assembly, shearing mechanism, and angle adjustment mechanism of the present application.

[0050] Figure 14 This is an assembly schematic diagram of the shearing mechanism of the present application. Detailed implementation manners

[0051] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0052] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 11 , Figure 13, A hedge trimming device 100 includes a rod body 10, a machine head assembly 20 assembled at the end of the rod body 10, a motor assembly 30 provided on the machine head assembly 20, and a shearing mechanism 40 connected to the motor assembly 30. The motor assembly 30 outputs shearing power to the shearing mechanism 40;

[0053] The connection node J between the motor assembly 30 and the shearing mechanism 40 is arranged in the middle area of the shearing mechanism 40. The working plane P1 of the shearing mechanism 40 is adapted to the surface of the hedge to be trimmed to form a trimming working surface P2;

[0054] When performing the trimming operation on the side surface of the hedge, the operator holds the rod body 10 facing the trimming working surface P2, keeps the working plane P1 of the shearing mechanism 40 in parallel contact with the trimming working surface P2, and drives the shearing mechanism 40 to perform a planar trimming movement along the trimming working surface P2 through the forward movement of the operator to complete the trimming of the first working height h1;

[0055] An angle adjustment mechanism 50 is provided between the shearing mechanism 40 and the machine head assembly 20. When trimming the second working height h2, the rod body 10 is adjusted to the corresponding height, and the angle between the shearing mechanism 40 and the rod body 10 is changed through the angle adjustment mechanism 50 to maintain the parallel contact between the working plane P1 of the shearing mechanism 40 and the surface of the second working height h2, so as to realize multi-level continuous trimming operations.

[0056] Specifically, the technical points of the present application will be described in detail below in combination with the trimming methods of the hedge trimming device 100 under four different working conditions:

[0057] When the hedge trimming device 100 trims the hedge, it mainly involves the side surface and the top surface of the hedge. In this embodiment, it is set that the height of the hedge is greater than the height of the human body, and the top surface of the hedge is above the operator's head.

[0058] When trimming the side surface of the hedge, since the side surface of the hedge is relatively high, we set the hedge side surface height layer below the operator's arm height as the first working height h1, the hedge side surface height layer consistent with the operator's arm height as the second working height h2, the hedge side surface height layer higher than the operator's arm height as the third working height h3, and the hedge top surface height layer higher than the operator's head as the fourth working height h4;

[0059] Refer to Figure 3 , Figure 4, when trimming the hedge at the first working height h1 on the side of the hedge, since the first working height h1 is lower than the height of the operator's arm, when the operator holds the rod body 10, the rod body 10 is inclined downward relative to the human body. At this time, the working plane P1 of the shearing mechanism 40 is at an acute angle α1 relative to the central axis S1 of the rod body 10. This can ensure that the working plane P1 of the shearing mechanism 40 is in parallel contact with the trimming working surface P2. The operator drives the shearing mechanism 40 to perform a planar trimming movement along the trimming working surface P2 through forward movement, and thus the trimming of the first working height h1 can be completed.

[0060] Refer to Figure 5 , Figure 6 , after the trimming of the first working height h1 is completed, the operator moves the hedge trimming device 100 to the starting position on the side of the hedge and trims the hedge at the second working height h2 on the side of the hedge. Since the second working height h2 is basically the same as the height of the operator's arm, when the operator holds the rod body 10, the rod body 10 is perpendicular to the trimming working surface P2 relative to the human body. At this time, the working plane P1 of the shearing mechanism 40 is at a right angle α2 relative to the central axis S1 of the rod body 10. This can ensure that the working plane P1 of the shearing mechanism 40 is in parallel contact with the trimming working surface P2. The operator drives the shearing mechanism 40 to perform a planar trimming movement along the trimming working surface P2 through forward movement, and thus the trimming of the second working height h2 can be completed.

[0061] Refer to Figure 7 , Figure 8 , after the trimming of the second working height h2 is completed, the operator moves the hedge trimming device 100 to the starting position on the side of the hedge and trims the hedge at the third working height h3 on the side of the hedge. Since the third working height h3 is higher than the height of the operator's arm, when the operator holds the rod body 10, the rod body 10 is inclined upward relative to the human body. At this time, the working plane P1 of the shearing mechanism 40 is at an obtuse angle α3 relative to the central axis S1 of the rod body 10. This can ensure that the working plane P1 of the shearing mechanism 40 is in parallel contact with the trimming working surface P2. The operator drives the shearing mechanism 40 to perform a planar trimming movement along the trimming working surface P2 through forward movement, and thus the trimming of the third working height h3 can be completed.

[0062] Refer to Figure 9 , Figure 10, after the trimming at the third working height h3 is completed, the operator moves the hedge trimming device 100 to the starting position on the side of the hedge and performs a trimming operation on the fourth working height h4 on the side of the hedge (the trimming plane P3 where the fourth working height h4 is located is the top surface of the hedge). Since the fourth working height h4 is higher than the height of the operator's head, when the operator holds the rod body 10, the rod body 10 is also inclined upward relative to the human body. At this time, the working plane P1 of the shearing mechanism 40 is at an angle α4 relative to the central axis S1 of the rod body 10, so as to ensure that the working plane P1 of the shearing mechanism 40 is in parallel contact with the trimming plane P3. The operator drives the shearing mechanism 40 to perform a planar trimming movement along the trimming plane P3 by moving forward, and thus the trimming of the fourth working height h4 can be completed.

[0063] In this application, by adjusting the angle (acute angle α1, right angle α2, obtuse angle α3, and angle α4) of the working plane P1 of the shearing mechanism 40 relative to the central axis S1 of the rod body 10, it is ensured that the working plane P1 is always in parallel contact with the trimming planes (P2 or P3) at different heights, so as to achieve precise trimming; the inclined design of the shearing mechanism 40 enables the operator to easily cope with the trimming requirements at different heights without frequently replacing the equipment or adjusting the posture; through the planar trimming movement, the shearing mechanism 40 can quickly and evenly complete the trimming of the side of the hedge, improving the operation efficiency; this design is applicable to multiple working height layers from low to high and can meet the hedge trimming requirements in different scenarios.

[0064] Moreover, it should be noted that the angle adjustment mechanism 50 is an automatic adjustment mechanism. Whether the shearing mechanism 40 of the hedge trimming device 100 performs a trimming operation at the first working height h1, the second working height h2, the third working height h3, or the fourth working height h4, when adjusting the trimming angle of the shearing mechanism 40, the user does not need to stop the operation of the motor assembly 30. During the process of the motor assembly 30 driving the shearing mechanism 40 to operate, the user can start the angle adjustment mechanism 50 through the switch on the rod body 10 to automatically adjust the angle of the shearing mechanism 40. There will be no conflict between the angle adjustment action of the shearing mechanism 40 and its own running trimming action. In this way, when the user uses the hedge trimming device 100, the user can adjust the angle of the shearing mechanism 40 without turning off the motor assembly 30, and the operation is relatively convenient.

[0065] Further, referring to Figure 11, the shearing mechanism 40 includes pruning cutter heads 401 which extend towards both sides of the connection node J, providing better balance. Specifically, this symmetric extension design enables the shearing mechanism 40 to evenly distribute the force during operation, avoiding the common problem of center of gravity shift in traditional hedge trimming devices. Therefore, when the operator adjusts the angle of the shearing mechanism 40, the hedge trimming device 100 can always maintain a stable posture and will not tilt forward due to the forward shift of the center of gravity like traditional hedge trimmers.

[0066] Furthermore, referring to Figure 4 , Figure 6 , Figure 8 , Figure 10 , Figure 12 , the shearing mechanism 40 is located on one side of the machine head assembly 20. In the direction perpendicular to the working plane P1 of the shearing mechanism 40, there is a height difference between the shearing mechanism 40 and the machine head assembly 20. When performing hedge surface trimming operations, the shearing mechanism 40 first approaches the trimming working surface P2. The machine head assembly 20 is located behind the working plane P1 of the shearing mechanism 40. When trimming the hedge, when the operator holds the rod body 10 and makes the working plane P1 of the pruning cutter head 401 of the shearing mechanism 40 keep parallel contact with the trimming working surface P2, the pruning cutter head 401 will first contact the surface of the hedge, thereby trimming the surface branches and leaves of the hedge. During the translational trimming process of the cutter head 401, the machine head assembly 20 will never contact the surface of the hedge, and the machine head assembly 20 will not interfere with the operation of the pruning cutter head 401. Throughout the trimming process, the machine head assembly 20 is always located behind the shearing mechanism 40 and will not contact the surface of the hedge. This design avoids secondary interference of the machine head assembly to the hedge and ensures the neatness of trimming.

[0067] Furthermore, referring to Figure 2 , Figure 13 , the machine head assembly 20 includes a machine shell 201 installed at the end of the rod body 10. A controller 202 is installed in the sandwich layer of the machine shell 201, and the motor assembly 30 and the angle adjustment mechanism 50 are both installed on the machine shell 201.

[0068] Furthermore, the angle adjustment mechanism 50 includes an angle adjustment motor 501 installed on the machine shell 201, a worm 502 connected to the power output end of the angle adjustment motor 501, a worm gear 503 meshing with the worm 502, and a rotating shaft 504. Among them, the rotating shaft 504 is rotatably installed on the machine shell 201, one end of which is connected to the middle of the worm gear 503, and the other end is connected to the motor assembly 30;

[0069] The angle adjustment motor 501 drives the worm gear 503 to rotate through the worm 502, and the worm gear 503 drives the motor assembly 30 and the shearing mechanism 40 to rotate through the rotating shaft 504 to achieve angle adjustment.

[0070] Furthermore, the motor assembly 30 includes a mounting housing 301, a working motor 302 disposed within the mounting housing 301, a transmission 303 connected to the output end of the working motor 302, the power output end of the transmission 303 being connected to the trimming cutter head 401, and the mounting housing 301 being connected to the rotating shaft 504.

[0071] The angle between the motor assembly 30 and the shearing mechanism 40 is mainly adjusted by the angle adjustment mechanism 50. During the angle adjustment process, the motor assembly 30 can drive the shearing mechanism 40 to work. Specifically, referring to Figure 14 , the trimming cutter head 401 includes a fixed tool holder 401a and a movable blade 401b disposed on one side of the fixed tool holder 401a. Additionally, an output shaft 304 is connected to the output end of the transmission 303, and an eccentric wheel 305 is mounted on the output shaft 304. When the motor assembly 30 drives the shearing mechanism 40 to work, the driving force of the working motor 302 is transmitted to the output shaft 304 through the transmission 303. When the output shaft 304 rotates, the movable blade 401b is driven by the eccentric wheel 305 to reciprocate on one side of the fixed tool holder 401a, thereby achieving the purpose of shearing. It should be noted that the structure of the trimming cutter head 401 is prior art and will not be described in detail in this embodiment.

[0072] In this embodiment, referring to Figure 11 , when the hedge trimming device 100 is in use and observed from the perspective of the operator facing the trimming working surface P2, it can be intuitively seen that the shearing mechanism 40 and the angle adjustment mechanism 50 are respectively located on both sides of the central axis S1 of the rod body 10, making the weights on both sides of the rod body 10 balanced. In particular, when the angle adjustment mechanism 50 drives the shearing mechanism 40 to adjust the angle, this balanced state will not change. This design effectively avoids the phenomenon of unstable operation or tilting caused by excessive weight on one side of the device. The symmetrical layout enables the device to maintain a stable posture during the trimming operation, reducing shaking and jitter, thereby improving the trimming accuracy and efficiency.

[0073] Specifically, in some embodiments, at least one of the angle adjustment motor 501, the worm 502, and the worm gear 503 is respectively located on both sides of the central axis S1 of the rod body 10 relative to the trimming cutter head 401, making the weights on both sides of the rod body 10 balanced. This layout further optimizes the weight distribution of the device, ensuring the weight balance on both sides of the rod body 10; by symmetrically arranging key components such as the angle adjustment motor 501, the worm 502, and the worm gear 503, the device can maintain a stable posture when adjusting the angle, avoiding the phenomenon of unstable operation or tilting caused by the center of gravity shifting. The symmetrical layout makes it easier for the operator to adjust the angle of the shearing mechanism 40 without the need to exert additional force to maintain the balance of the device, thereby improving the operation convenience and comfort.

[0074] Further, a first switch 101 and a second switch 102 are provided on the rod body 10. The first switch 101 is adapted to control the opening and closing of the working motor 302, and the second switch 102 is adapted to control the opening and closing of the angle adjustment motor 501;

[0075] During the process of the working motor 302 driving the trimming cutter head 401 to operate, the angle adjustment motor 501 can synchronously drive the trimming cutter head 401 to perform angle adjustment. Among them, the rotation angle of the trimming cutter head 401 can achieve stepless speed regulation.

[0076] Further, a power source is installed on the rod body 10. The power source is electrically connected to the working motor 302 and the angle adjustment motor 501 to provide power for the working motor 302 and the angle adjustment motor 501.

[0077] In summary, by optimizing the connection method between the shearing mechanism 40 and the machine head assembly 20 in this application, when performing hedge surface trimming operations, the operator holds the rod body 10 facing the trimming operation surface. At the same time, the operation plane P1 of the shearing mechanism 40 always maintains parallel contact with the surface of the hedge to be trimmed. The user only needs to hold the rod body 10 and move along the trimming operation surface P2 to complete the trimming, without repeatedly swinging the arm to lift the equipment, significantly reducing the operation intensity and improving the user comfort;

[0078] By setting the angle adjustment mechanism 50 in this application, the user can adjust the included angle between the shearing mechanism 40 and the rod body 10 without stopping trimming, realizing multi-level continuous trimming operations and greatly improving the trimming efficiency;

[0079] The shearing mechanism 40 and the angle adjustment mechanism 50 are respectively arranged on both sides of the central axis S1 of the rod body 10, so that the weights on both sides of the equipment are balanced, effectively reducing the torsional load on the rod body 10 and making the operation easier and more stable;

[0080] The shearing mechanism 40 is arranged on one side of the machine head assembly 20, so that the shearing mechanism 40 first approaches the trimming operation surface P2, and the machine head assembly 20 is located behind the shearing mechanism 40, avoiding direct interference of the machine head assembly 20 on the trimming process and improving the trimming fluency and efficiency;

[0081] The user can adjust the rotation angle of the trimming cutter head 401 in real time during the trimming process without stopping the operation or loosening the equipment, simplifying the operation process and improving the user experience.

[0082] Finally, 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 them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hedge trimming device comprising: Rod body; A head assembly assembled on the end of the rod body; A motor assembly disposed on the head assembly; a shearing mechanism connected to the motor assembly, the motor assembly outputting shearing power to the shearing mechanism; Features: The connection node between the motor assembly and the shearing mechanism is arranged in the middle area of ​​the shearing mechanism, and the working plane of the shearing mechanism is adapted to the surface of the hedge to be trimmed to form a trimming working surface; When performing hedge surface trimming operations, the operator holds the rod body facing the trimming operation surface, so that the operation plane of the shearing mechanism maintains parallel contact with the trimming operation surface, and the operator moves to drive the shearing mechanism to perform a planar trimming movement along the trimming operation surface to complete trimming at a first operation height; An angle adjustment mechanism is provided between the shearing mechanism and the head assembly. When trimming at a second working height, the rod body is adjusted to a corresponding height, and the angle between the shearing mechanism and the rod body is changed by the angle adjustment mechanism to maintain the working plane of the shearing mechanism in parallel contact with the surface of the second working height, thereby realizing multi-level continuous trimming operations.

2. The hedge trimming device according to claim 1, characterized in that The shearing mechanism is located on one side of the head assembly. In the direction perpendicular to the working plane of the shearing mechanism, there is a height difference between the shearing mechanism and the head assembly. When the hedge surface trimming operation is performed, the shearing mechanism first approaches the trimming working surface, and the head assembly is located behind the working plane of the shearing mechanism.

3. The hedge trimming device according to claim 1, characterized in that The shearing mechanism and the angle adjustment mechanism are respectively located on both sides of the central axis of the rod body, so that the weight on both sides of the rod body is balanced.

4. The hedge trimming device according to claim 3, characterized in that The shearing mechanism includes a trimming head extending toward both sides of the connection node.

5. The hedge trimming device according to claim 2, characterized in that The head assembly comprises a housing mounted on the end of the rod body, and the motor assembly and the angle adjustment mechanism are both mounted on the housing.

6. The hedge trimming device according to claim 4, characterized in that The angle adjustment mechanism comprises: An angle adjustment motor, which is mounted on the housing; A worm connected to a power output end of the angle adjustment motor; a worm wheel meshing with the worm; A rotating shaft, which is rotatably mounted on the housing, one end of which is connected to the worm gear and the other end of which is connected to the motor assembly; The angle adjustment motor drives the worm wheel to rotate through the worm, and the worm wheel drives the motor assembly and the shearing mechanism to rotate through the rotating shaft to achieve angle adjustment.

7. The hedge trimming device according to claim 6, characterized in that At least one of the angle adjustment motor, the worm and the worm wheel is located on both sides of the central axis of the rod body relative to the pruning head, so that the weight of both sides of the rod body is balanced.

8. The hedge trimmer according to claim 6, characterized in that The motor assembly comprises a mounting housing, a working motor arranged in the mounting housing, a transmission connected to an output end of the working motor, a power output end of the transmission connected to the pruning head, and the mounting housing connected to the rotating shaft.

9. The hedge trimmer according to claim 8, characterized in that The rod body is provided with a first switch and a second switch, the first switch is suitable for controlling the on and off of the working motor, and the second switch is suitable for controlling the on and off of the angle adjustment motor; When the working motor drives the pruning head to operate, the angle adjustment motor can synchronously drive the pruning head to adjust its angle.

10. The hedge trimming device according to claim 6, characterized in that The rotation angle of the trimming head can realize stepless speed regulation.

11. The hedge trimming device according to claim 8, characterized in that A power source is installed on the rod body, and the power source is electrically connected to the working motor and the angle adjustment motor.

Images