Trimming equipment with adjustable angle

Abstract

The utility model relates to the field of gardening tools, and particularly discloses angle-adjustable pruning 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] The present application relates to the field of garden tools, in particular to an angle-adjustable pruning device. BACKGROUND

[0002] There are many inconveniences and inefficiencies in the use of hedge trimmers. Users need to repeatedly swing their arms to raise and lower the trimmer while walking along the hedge, which not only consumes physical strength but also easily leads to user fatigue.

[0003] Through the understanding of related technologies, the end connecting rod of the pruning head of some hedge trimmers is used in the process. In order to achieve better pruning effect, the pruning head of the hedge trimmer and the rod need to be adjusted to a certain angle. This design will produce torsional load on the rod. The user needs to constantly resist this torsional force during pruning, further increasing the difficulty of operation and fatigue.

[0004] In addition, the head assembly and pruning head of this trimmer will simultaneously contact the hedge during pruning. When the user swings the hedge trimmer back and forth, the head assembly generates resistance to the pruning process, reducing the pruning efficiency. CONTENT OF THE INVENTION

[0005] The purpose of at least one specific embodiment of the present application is to solve the defects existing in the prior art and provide an angle-adjustable pruning device.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] An angle-adjustable pruning device, comprising:

[0008] a rod;

[0009] a head assembly assembled at the end of the rod;

[0010] a motor assembly provided in the head assembly;

[0011] a shearing mechanism connected with the motor assembly, the motor assembly outputs shearing power to the shearing mechanism;

[0012] The connection node of the motor assembly and the shearing mechanism is provided in the middle region of the shearing mechanism, the shearing mechanism includes a pruning head, and the pruning head extends towards both sides of the connection node;

[0013] The working plane of the shearing mechanism is adapted to the surface of the hedge to be trimmed to form a pruning working surface;

[0014] The shearing mechanism is located on one side of the head assembly, and the shearing mechanism has a height difference with the head assembly in a direction perpendicular to the working plane of the shearing mechanism. When the hedge surface trimming operation is performed, the shearing mechanism is first close to the trimming operation surface, and the head assembly is located behind the working plane of the shearing mechanism.

[0015] An angle adjusting mechanism is arranged between the shearing mechanism and the head assembly. The angle adjusting mechanism includes a driving member and a transmission member connected to the driving member. When the motor assembly outputs the shearing power to the shearing mechanism, the driving member can drive the shearing mechanism to rotate relative to the rod body through the transmission member, so as to adjust the angle of the working plane of the shearing mechanism, and make the working plane parallel to the surface of the trimming operation surface.

[0016] Further, the shearing mechanism and the angle adjusting mechanism are respectively located on both sides of the central axis of the rod body, so that the weight balance of the rod body on both sides is achieved.

[0017] Further, the head assembly includes a machine shell mounted on the end of the rod body, and the motor assembly and the angle adjusting mechanism are both mounted on the machine shell.

[0018] Further, the angle adjusting mechanism includes:

[0019] An angle adjusting motor mounted on the machine shell;

[0020] A worm connected to the power output end of the angle adjusting motor;

[0021] A worm wheel engaged with the worm;

[0022] A rotating shaft rotatably mounted on the machine shell, one end of which is connected to the worm wheel and the other end of which is connected to the motor assembly;

[0023] The angle adjusting motor is configured as the driving member, and the worm, the worm wheel and the rotating shaft are configured as the transmission member;

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

[0025] Further, at least one of the angle adjusting motor, the worm and the worm wheel is respectively located on both sides of the central axis of the rod body, so that the weight balance of the rod body on both sides is achieved.

[0026] Further, the motor assembly includes a mounting shell, a working motor arranged in the mounting shell, a speed changer connected to the output end of the working motor, a power output end of the speed changer connected to the trimming cutter, and the mounting shell connected to the rotating shaft.

[0027] Further, the rod body is provided with a first switch and a second switch, 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 adjusting motor.

[0028] During the operation of the working motor driving the trimming cutter head, the angle adjustment motor can synchronously drive the trimming cutter head to adjust the angle.

[0029] Further, the rotation angle of the trimming cutter head can be infinitely adjusted.

[0030] Further, a power supply is mounted on the rod body, and the power supply is electrically connected with the working motor and the angle adjustment motor.

[0031] Further, when the hedge surface trimming operation is performed, the operator holds the rod body facing the trimming operation surface, so that the operation plane of the shearing mechanism is in parallel contact with the trimming operation surface, and the shearing mechanism is driven to move along the trimming operation surface by the operator to complete the trimming of the first operation height.

[0032] When the trimming of the second operation height is performed, the rod body is adjusted to the corresponding height, the included angle between the shearing mechanism and the rod body is changed by the angle adjustment mechanism, the operation plane of the shearing mechanism is maintained in parallel contact with the surface of the second operation height, and the multi-level continuous trimming operation is realized.

[0033] The application has the following advantages: 1. The application optimizes the connection mode of the shearing mechanism and the head assembly, when the hedge surface trimming operation is performed, the operator holds the rod body facing the trimming operation surface, and the operation plane of the shearing mechanism is always in parallel contact with the surface of the hedge to be trimmed, the user only needs to hold the rod body and move along the trimming operation surface to complete the trimming, without repeatedly swinging the arm to lift the device, which significantly reduces the operation strength and improves the user comfort;

[0034] 2. The application sets the angle adjustment mechanism, the user can adjust the included angle between the shearing mechanism and the rod body without stopping the trimming, realize the multi-level continuous trimming operation, and greatly improve the trimming efficiency;

[0035] 3. The shearing mechanism and the angle adjustment mechanism are respectively arranged on both sides of the central axis of the rod body, so that the weight of the device is balanced on both sides, which effectively reduces the torsional load on the rod body and makes the operation more stable;

[0036] 4. The shearing mechanism is arranged on one side of the head assembly, so that the shearing mechanism is first close to the trimming operation surface, and the head assembly is located behind the operation plane of the shearing mechanism, which avoids the direct interference of the head assembly on the trimming process and improves the smoothness and efficiency of the trimming;

[0037] 5. The user can adjust the rotation angle of the trimming cutter head in real time during the trimming process without stopping the operation or loosening the device, which simplifies the operation process and improves the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0039] Figure 1 It is a structural schematic diagram of the present application.

[0040] Figure 2 It is a sectional schematic diagram of the present application.

[0041] Figure 3 It is a use state diagram of the present application under the first working condition.

[0042] Figure 4 It is an angle diagram of the working plane of the shearing mechanism relative to the central axis of the rod under the first working condition.

[0043] Figure 5 It is a use state diagram of the present application under the second working condition.

[0044] Figure 6 It is an angle diagram of the working plane of the shearing mechanism relative to the central axis of the rod under the second working condition.

[0045] Figure 7 It is a use state diagram of the present application under the third working condition.

[0046] Figure 8 It is an angle diagram of the working plane of the shearing mechanism relative to the central axis of the rod under the third working condition.

[0047] Figure 9 It is a use state diagram of the present application under the fourth working condition.

[0048] Figure 10 It is an angle diagram of the working plane of the shearing mechanism relative to the central axis of the rod under the fourth working condition.

[0049] Figure 11 It is a side schematic diagram of the present application in use.

[0050] Figure 12 It is a front schematic diagram of the present application in use.

[0051] Figure 13 It is an assembly schematic diagram of the motor assembly, the shearing mechanism and the angle adjusting mechanism of the present application.

[0052] Figure 14An assembly view of the shearing mechanism of the present application. DETAILED DESCRIPTION

[0053] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0054] Reference Figure 1 , Figure 2 , Figure 3 , Figure 11 , Figure 13 An angle-adjustable trimming device 100 comprises a rod body 10, a head assembly 20 assembled at the end of the rod body 10, a motor assembly 30 arranged on the head assembly 20, a shearing mechanism 40 connected with the motor assembly 30, and the motor assembly 30 outputs shearing power to the shearing mechanism 40.

[0055] The connecting node J of the motor assembly 30 and the shearing mechanism 40 is arranged at the middle region of the shearing mechanism 40, and the working plane P1 of the shearing mechanism 40 is matched with the surface of the hedge to be trimmed to form a trimming working plane P2.

[0056] When the side surface trimming operation of the hedge is performed, the operator holds the rod body 10 facing the trimming working plane P2, so that the working plane P1 of the shearing mechanism 40 is kept in parallel contact with the trimming working plane P2, and the shearing mechanism 40 is driven to perform a planar trimming movement along the trimming working plane P2 by the movement of the operator, thereby completing the trimming of the first operation height h1.

[0057] An angle adjusting mechanism 50 is arranged between the shearing mechanism 40 and the head assembly 20, when the trimming of the second operation height h2 is performed, the rod body 10 is adjusted to the corresponding height, the included angle between the shearing mechanism 40 and the rod body 10 is changed by the angle adjusting mechanism 50, the working plane P1 of the shearing mechanism 40 is kept in parallel contact with the surface of the second operation height h2, and the multi-level continuous trimming operation is realized.

[0058] Specifically, the technical points of the present application will be described in detail below in combination with the trimming modes of the trimming device 100 in four different working conditions:

[0059] When the trimming device 100 trims the hedge, it mainly involves the side surface of the hedge and the top surface of the hedge. In the present embodiment, the height of the hedge is set to be greater than the height of the human body, and the top surface of the hedge is located above the head of the operator.

[0060] When the hedge side is trimmed, because the height of the hedge side is high, we set the hedge side height layer lower than the height of the operator's arm as the first working height h1, the hedge side height layer consistent with the height of the operator's arm as the second working height h2, the hedge side height layer higher than the height of the operator's arm as the third working height h3, and the hedge top height layer higher than the top of the operator's head as the fourth working height h4.

[0061] Referring to Figure 3 , Figure 4 When the first working height h1 of the hedge side is trimmed, because 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 a1 relative to the central axis S1 of the rod body 10, so that the working plane P1 of the shearing mechanism 40 can be kept in parallel contact with the trimming work surface P2, and the operator can complete the trimming of the first working height h1 by moving the shearing mechanism 40 along the trimming work surface P2 in a planar trimming manner.

[0062] Referring to Figure 5 , Figure 6 After the first working height h1 is trimmed, the operator moves the trimming device 100 to the starting position of the hedge side, and trims the second working height h2 of the hedge side, because the second working height h2 is basically consistent with the height of the operator's arm, when the operator holds the rod body 10, the rod body 10 is perpendicular to the trimming work surface P2 relative to the human body, at this time, the working plane P1 of the shearing mechanism 40 is at a right angle a2 relative to the central axis S1 of the rod body 10, so that the working plane P1 of the shearing mechanism 40 can be kept in parallel contact with the trimming work surface P2, and the operator can complete the trimming of the second working height h2 by moving the shearing mechanism 40 along the trimming work surface P2 in a planar trimming manner.

[0063] Referring to Figure 7 , Figure 8 After the second working height h2 is trimmed, the operator moves the trimming device 100 to the starting position of the hedge side, and trims the third working height h3 of the hedge side, because 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 a3 relative to the central axis S1 of the rod body 10, so that the working plane P1 of the shearing mechanism 40 can be kept in parallel contact with the trimming work surface P2, and the operator can complete the trimming of the third working height h3 by moving the shearing mechanism 40 along the trimming work surface P2 in a planar trimming manner.

[0064] With reference to Figure 9 , Figure 10 , the third operation height h3 is completed, the operator holding the trimming device 100 moves to the starting position of the hedge side, and the fourth operation height h4 of the hedge side is trimmed (the trimming operation surface P3 where the fourth operation height h4 is located is the top surface of the hedge). Since the fourth operation height h4 is higher than the height above 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 operation 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 operation plane P1 of the shearing mechanism 40 is in parallel contact with the trimming operation surface P3. The operator moves by walking to drive the shearing mechanism 40 to make a planar trimming movement along the trimming operation surface P3, that is, the trimming of the fourth operation height h4 is completed.

[0065] The present application adjusts the angle (acute angle α1, right angle α2, obtuse angle α3 and angle α4) of the operation plane P1 of the shearing mechanism 40 relative to the central axis S1 of the rod body 10 to ensure that the operation plane P1 is always in parallel contact with the trimming operation surface (P2 or P3) of different heights, thereby achieving precise trimming. The shearing mechanism 40 can be designed to be inclined, allowing the operator to easily cope with trimming requirements of different heights without the need to frequently replace equipment or adjust posture. Through planar trimming movement, the shearing mechanism 40 can quickly and uniformly complete the trimming of the hedge side, improving work efficiency. This design is suitable for a variety of operation height layers from low to high and can meet the trimming requirements of hedges in different scenarios.

[0066] Furthermore, it should be noted that the angle adjusting mechanism 50 is an automatic adjusting mechanism. When the shearing mechanism 40 is trimming at the first operation height h1, the second operation height h2, the third operation height h3 or the fourth operation height h4, the user does not need to stop the work of the motor assembly 30 when adjusting the trimming angle of the shearing mechanism 40. During the operation of the motor assembly 30 driving the shearing mechanism 40, the user can start the angle adjusting mechanism 50 to automatically adjust the angle of the shearing mechanism 40 through the switch on the rod body 10. The angle adjusting action of the shearing mechanism 40 does not conflict with its own operation trimming action. In this way, the user can adjust the angle of the shearing mechanism 40 without turning off the motor assembly 30 during the use of the trimming device 100, which is more convenient to operate.

[0067] Further, with reference to Figure 11, the shearing mechanism 40 includes a trimming cutter head 401 extending towards both sides of the connection node J, which provides better balance. Specifically, this symmetrical extension design enables the shearing mechanism 40 to evenly distribute the force during operation, avoiding the common problem of center of gravity deviation of traditional trimming equipment. Therefore, when the operator adjusts the angle of the shearing mechanism 40, the trimming equipment 100 can always maintain a stable posture and will not tilt forward like traditional hedge trimmers due to forward movement of the center of gravity.

[0068] Further, referring to Figure 4 , Figure 6 , Figure 8 , Figure 10 , Figure 12 , the shearing mechanism 40 is located on one side of the head assembly 20, and in the direction perpendicular to the operation plane P1 of the shearing mechanism 40, the shearing mechanism 40 has a height difference with the head assembly 20. When performing hedge surface trimming operations, the shearing mechanism 40 is first close to the trimming operation surface P2, and the head assembly 20 is located behind the operation plane P1 of the shearing mechanism 40. When trimming the hedge, the operator holds the rod body 10 so that the operation plane P1 of the trimming cutter head 401 of the shearing mechanism 40 is in parallel contact with the trimming operation surface P2. The trimming cutter head 401 will first contact the surface of the hedge, thereby trimming the surface branches and leaves of the hedge. During the process of translational trimming, the head assembly 20 will not contact the surface of the hedge, and the head assembly 20 will not interfere with the operation of the trimming cutter head 401. During the entire trimming process, the head assembly 20 is always located behind the shearing mechanism 40 and will not contact the surface of the hedge. This design avoids the secondary interference of the head assembly to the hedge, ensuring the neatness of the trimming.

[0069] Further, referring to Figure 2 , Figure 13 , the head assembly 20 includes a machine shell 201 installed at the end of the rod body 10, and a controller 202 is installed in the interlayer of the machine shell 201. The motor assembly 30 and the angle adjusting mechanism 50 are both installed on the machine shell 201.

[0070] Further, the angle adjusting mechanism 50 includes an angle adjusting motor 501 installed on the machine shell 201, a worm 502 connected to the power output end of the angle adjusting motor 501, a worm gear 503 meshed with the worm 502, and a rotating shaft 504, wherein the rotating shaft 504 is rotatably installed on the machine shell 201, one end of the rotating shaft 504 is connected to the middle part of the worm gear 503, and the other end of the rotating shaft 504 is connected to the motor assembly 30.

[0071] The angle adjusting motor 501 drives the worm 502 to rotate, and the worm 502 drives the worm gear 503 to rotate, and the worm gear 503 drives the motor assembly 30 and the shearing mechanism 40 to rotate through the rotating shaft 504 to realize angle adjustment.

[0072] Further, the motor assembly 30 comprises a mounting housing 301, a working motor 302 arranged in the mounting housing 301, a speed changer 303 connected to an output end of the working motor 302, a trimming cutter head 401 connected to a power output end of the speed changer 303, and the mounting housing 301 is connected to the rotating shaft 504.

[0073] The angle of the motor assembly 30 and the shearing mechanism 40 is mainly adjusted by the angle adjusting mechanism 50, and in the process of angle adjustment, the motor assembly 30 can drive the shearing mechanism 40 to work. Specifically, refer to Figure 14 The trimming cutter head 401 comprises a fixed cutter seat 401a and a movable cutter blade 401b arranged on one side of the fixed cutter seat 401a. In addition, the output end of the speed changer 303 is connected to an output shaft 304, and an eccentric wheel 305 is arranged 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 speed changer 303. When the output shaft 304 rotates, the movable cutter blade 401b is driven to reciprocate on one side of the fixed cutter seat 401a through the eccentric wheel 305, so as to achieve 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.

[0074] In this embodiment, refer to Figure 11 When the trimming device 100 is in use, from the perspective of the operator facing the trimming work surface P2, it can be directly observed that the shearing mechanism 40 and the angle adjusting mechanism 50 are respectively located on both sides of the central axis S1 of the rod body 10, so that the weight balance of both sides of the rod body 10 is achieved. Especially, when the angle adjusting mechanism 50 drives the shearing mechanism 40 to adjust the angle, this balance 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 trimming work, reduces shaking and shaking, and thus improves the trimming precision and efficiency.

[0075] Specifically, in some embodiments, at least one of the angle adjusting 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, so that the weight balance of both sides of the rod body 10 is achieved. This layout further optimizes the weight distribution of the device and ensures the weight balance of both sides of the rod body 10. By symmetrically arranging the key components such as the angle adjusting 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 deviation. The symmetrical layout makes it easier for the operator to adjust the angle of the shearing mechanism 40, without the need for additional force to maintain the balance of the device, thereby improving the convenience and comfort of operation.

[0076] Further, the rod body 10 is provided with a first switch 101 and a second switch 102, the first switch 101 is suitable for controlling the opening and closing of the working motor 302, and the second switch 102 is suitable for controlling the opening and closing of the angle adjusting motor 501.

[0077] During the operation of the working motor 302 to drive the trimming cutter head 401, the angle adjusting motor 501 can synchronously drive the trimming cutter head 401 to adjust the angle, and the rotation angle of the trimming cutter head 401 can realize stepless speed regulation.

[0078] Further, the rod body 10 is provided with a first switch 101 and a second switch 102, the first switch 101 is suitable for controlling the opening and closing of the working motor 302, and the second switch 102 is suitable for controlling the opening and closing of the angle adjusting motor 501.

[0079] In summary, the connection mode of the shearing mechanism 40 and the machine head assembly 20 is optimized, when the hedge surface trimming operation is implemented, 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 and the surface of the hedge to be trimmed are always in parallel contact, 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, the operation strength is significantly reduced, and the user comfort is improved.

[0080] The angle adjusting mechanism 50 is arranged, the user can adjust the included angle between the shearing mechanism 40 and the rod body 10 without stopping trimming, multi-level continuous trimming operation is realized, and the trimming efficiency is greatly improved.

[0081] The shearing mechanism 40 and the angle adjusting mechanism 50 are arranged on both sides of the central axis S1 of the rod body 10 respectively, so that the weight balance of the equipment on both sides is realized, the torsional load on the rod body 10 is effectively reduced, and the operation is more stable.

[0082] The shearing mechanism 40 is arranged on one side of the machine head assembly 20, so that the shearing mechanism 40 is first close to the trimming operation surface P2, and the machine head assembly 20 is located behind the shearing mechanism 40, which avoids the direct interference of the machine head assembly 20 on the trimming process, and improves the smoothness and efficiency of the trimming.

[0083] 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, which simplifies the operation process and improves the user experience.

[0084] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application examples.

Claims

1. An adjustable-angle trimming device, comprising: Rod body; A head assembly fitted to the end of the rod; A motor assembly disposed on the head assembly; A shearing mechanism connected to the motor assembly, wherein the motor assembly outputs shearing power to the shearing mechanism; Its features are: The connection node between the motor assembly and the shearing mechanism is located in the middle region of the shearing mechanism, and the shearing mechanism includes a trimming head that extends toward both sides of the connection node. The working plane of the shearing mechanism is adapted to the surface of the hedge to be trimmed to form a trimming working surface; The shearing mechanism is located on one side of the head assembly. In the direction perpendicular to the working plane, the shearing mechanism and the head assembly have a height difference. When performing hedge surface trimming operations, the shearing mechanism first approaches the trimming working surface, and the head assembly is located behind the working plane of the shearing mechanism. An angle adjustment mechanism is provided between the shearing mechanism and the head assembly. The angle adjustment mechanism includes a drive component and a transmission component connected to the drive component. When the motor assembly outputs shearing power to the shearing mechanism, the drive component can synchronously drive the shearing mechanism to rotate relative to the rod body through the transmission component, so as to adjust the working plane angle of the shearing mechanism, so that the working plane is in parallel contact with the surface of the trimming working surface.

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

3. The adjustable-angle trimming device according to claim 1, characterized in that, The head assembly includes a housing mounted on the end of the rod, and the motor assembly and the angle adjustment mechanism are both mounted on the housing.

4. The adjustable-angle trimming device according to claim 3, characterized in that, The angle adjustment mechanism includes: An angle adjustment motor is mounted on the housing; A worm gear, which is connected to the power output end of the angle adjustment motor; A worm gear, which meshes with the worm; A rotating shaft is rotatably mounted on the housing, with one end connected to the worm gear and the other end connected to the motor assembly; The angle adjustment motor is configured as the driving component, and the worm gear, worm wheel and rotating shaft that cooperate with each other are configured as the transmission component. The angle adjustment motor drives the worm wheel to rotate via the worm gear, and the worm wheel drives the motor assembly and the shearing mechanism to rotate via the rotating shaft to achieve angle adjustment.

5. The adjustable-angle trimming device according to claim 4, characterized in that, At least one of the angle adjusting motor, worm gear, and worm wheel is located on both sides of the central axis of the rod body relative to the trimmer head, so that the weight of the rod body is balanced on both sides.

6. The adjustable-angle trimming device according to claim 4, characterized in that, The motor assembly includes a mounting housing, a working motor disposed within the mounting housing, a gearbox connected to the output end of the working motor, the power output end of the gearbox being connected to the trimmer head, and the mounting housing being connected to the rotating shaft.

7. The adjustable-angle trimming device according to claim 6, characterized in that, The rod is equipped with a first switch and a second switch. The first switch is adapted to control the start and stop of the working motor, and the second switch is adapted to control the start and stop of the angle adjustment motor. During the operation of the working motor driving the trimmer head, the angle adjustment motor can synchronously drive the trimmer head to adjust its angle.

8. The adjustable-angle trimming device according to claim 4, characterized in that, The rotation angle of the trimmer head can be infinitely adjusted.

9. The adjustable-angle trimming device according to claim 6, characterized in that, A power source is installed on the rod, and the power source is electrically connected to the working motor and the angle adjustment motor.

10. The adjustable-angle trimming device according to claim 1, characterized in that, When performing hedge trimming, the operator holds the rod facing the trimming surface, keeping the working plane of the shearing mechanism in parallel contact with the trimming surface. The operator moves to drive the shearing mechanism to perform planar trimming along the trimming surface, completing the trimming of the first working height. When trimming at the second working height, the rod is adjusted to the corresponding height, and the angle adjustment mechanism changes the angle between the shearing mechanism and the rod 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.

Images