Pruning device

Abstract

The utility model relates to a trimming device, which comprises a telescopic rod body and a cutting part arranged at one end of the rod body, the cutting part comprises a mounting plate, the end part of the rod body is provided with a rotating seat, and the mounting plate is mounted on the rotating seat; the hook knife is fixed on the mounting plate; the blade is installed on one side of the hook knife in the thickness direction, the blade and the hook knife form a limiting cavity for containing a to-be-trimmed part, and the blade can rotate in the YZ plane to open or close an opening of the hook knife; wherein the rotating seat can circumferentially rotate in an XY plane relative to the rod body, and the mounting plate can rotate in an XZ plane relative to the rotating seat, so that the angle of the cutting part is adjusted to be perpendicular to the extending direction of the part to be trimmed. The hook knife and the blade can deflect in the X direction, the Y direction and the Z direction according to the extending direction of the to-be-trimmed part, so that the cutting edges of the hook knife and the blade are perpendicular to the extending direction of the to-be-trimmed part, and the adaptability of the device to the to-be-trimmed parts in different extending directions and the convenience and safety in the trimming process are improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of gardening tools, and in particular to a pruning device. Background Art

[0002] In the factory area, as the trees continue to grow, some branches of the trees will have different extension directions at different heights. When the branches extend to the position of the wires, repeated friction will occur between the branches and the wires, making it easy for the branches to damage the wires and even spark with the wires, creating a huge safety hazard. At the same time, when other means of transportation such as vehicles are transporting materials, when the materials are stacked to a certain height, they are also prone to scratching against the branches, affecting the stability of the materials during transportation. In order to ensure the growth and development of trees and the safety in the factory area, it is necessary to trim the branches of the trees. For example, the Chinese patent document with patent publication number CN203968752U discloses a tree pruning tool, which mainly trims thicker branches by setting steel wires or saw blades. Although it is more labor-saving, due to the different directions of the branches of the trees, it is necessary to manually adjust the correction direction of the pruning tool, and the branches of large trees are usually high, and it is difficult to trim the branches of large trees over long distances. Utility Model Content

[0003] An object of the present disclosure is to provide a trimming device that can at least partially solve the technical problems existing in the related art.

[0004] In order to achieve the above-mentioned object, the present disclosure provides a trimming device, comprising a telescopic rod body and a cutting part arranged at one end of the rod body, wherein the cutting part comprises:

[0005] A mounting plate, wherein the end of the rod body is provided with a rotating seat, and the mounting plate is mounted on the rotating seat;

[0006] A hook knife fixed to the mounting plate; and

[0007] A blade is mounted on one side of the hook knife in the thickness direction, the blade and the hook knife form a limiting cavity for accommodating the part to be trimmed, and the blade can rotate in the YZ plane to open or close the opening of the hook knife;

[0008] The rotating seat can rotate circumferentially relative to the rod body in the XY plane, and the mounting plate can rotate relative to the rotating seat in the XZ plane to adjust the angle of the cutting portion to be perpendicular to the extension direction of the portion to be trimmed.

[0009] Optionally, the hook knife includes a main body portion located in the same plane as the blade and a guide portion arranged on a side of the main body portion away from the blade and extending along the X-direction. When the trimming portion is located in the limiting cavity, it abuts against the inner wall of the guide portion to drive the rotating seat and / or the mounting plate to rotate.

[0010] Optionally, the hook knife is constructed as a semicircular plate structure capable of accommodating the portion to be trimmed, and the arc-shaped guide portion is coaxial with the semicircular plate structure and is arranged in close contact with each other to form the limiting cavity with the blade.

[0011] Optionally, the trimming device further comprises a driving unit, and the driving unit comprises:

[0012] A first connecting shaft connected between the mounting plate and the blade;

[0013] A driving member for outputting a driving force; and

[0014] A driving rod has one end connected to the output end of the driving member and the other end used to cooperate with the blade to drive the blade to rotate around the axis of the first connecting shaft.

[0015] Optionally, the cutting portion further comprises a mounting bar connected to the mounting plate at an angle for fixing the driving member.

[0016] Optionally, the driving part further comprises a worm wheel coaxially sleeved on the first connecting shaft, an end wall of the worm wheel is fittedly fixed on a side of the blade facing away from the mounting plate, and the driving rod is configured as a worm meshing with the worm wheel.

[0017] Optionally, the trimming device further includes a power supply unit, and the power supply unit includes:

[0018] a storage battery, disposed at one end of the rod body away from the cutting portion and electrically connected to the driving member; and

[0019] A control button is arranged on the side wall of the rod body near the battery and is used to control the connection and disconnection between the battery and the driving member.

[0020] Optionally, the trimming device further comprises:

[0021] A second connecting shaft, one end of which is fixedly connected to the mounting plate, and the other end of which is rotatable around its own axis and penetrates the rotating seat;

[0022] A torsion spring is compression-connected between the rotating seat and the other end of the second connecting shaft.

[0023] Optionally, the trimming device further comprises a third connecting shaft, one end of which is coaxially sleeved inside the rod body and the other end of which is fixedly connected to the rotating seat, and the third connecting shaft is configured to be rotatable around its own axis.

[0024] Optionally, the rod body includes a plurality of sliding rods that are sequentially sleeved, and a limit bolt that radially passes through one of two adjacent sliding rods and abuts against a side wall of the other of the two adjacent sliding rods.

[0025] Through the above technical solution, the rotating seat rotates in the XY plane and the mounting plate rotates in the XZ plane, so that the hook knife and the blade can be deflected in the X direction, the Y direction and the Z direction according to the extension direction of the part to be trimmed, so that the blades of the two are respectively perpendicular to the extension direction of the part to be trimmed, and the blade and the hook knife rotate relative to each other to form a limiting cavity for accommodating the part to be trimmed and generate a shear force between the hook knife and the hook knife to cut the part to be trimmed, so as to cut the part to be trimmed, thereby improving the adaptability of the trimming device to the part to be trimmed with different extension directions and the convenience and safety during the trimming process.

[0026] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0028] Figure 1 is a schematic structural diagram of a trimming device provided according to an exemplary embodiment of the present disclosure;

[0029] Figure 2 is a schematic structural diagram of a trimming device provided according to another exemplary embodiment of the present disclosure.

[0030] Description of Reference Numerals

[0031] 100-rod body; 110-slide bar; 120-limit bolt; 200-cutting part; 210-mounting plate; 220-rotating seat; 230-hook knife; 231-main body; 232-guide part; 240-blade; 260-mounting strip; 300-driving part; 310-first connecting shaft; 320-driving member; 330-driving rod; 340-worm gear; 400-power supply part; 410-battery; 420-button; 510-second connecting shaft; 520-torsion spring; 610-third connecting shaft. DETAILED DESCRIPTION

[0032] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0033] In the present disclosure, unless otherwise stated, the directional words used, such as "inside" and "outside", refer to the outline of the corresponding parts themselves; the directional words used, such as "top" and "bottom", are defined based on the usage habits of the trimming device provided by the present disclosure. Specifically, reference can be made to Figure 1 The terms used in this disclosure, such as "first", "second", etc., are intended to distinguish one element from another and do not have order or importance. In addition, when the following description refers to the drawings, the same reference numerals in different drawings represent the same or similar elements.

[0034] Reference Figure 1 and Figure 2 The present disclosure provides a pruning device, which may include a telescopic rod body 100 and a cutting portion 200 disposed at one end of the rod body 100. The distance between the cutting portion 200 and the portion to be pruned described below may be adjusted by the telescopic length of the rod body 100, thereby improving the applicability of the pruning device. The cutting portion 200 may include a mounting plate 210, a rotating seat 220, a hook knife 230, and a blade 240. Specifically, the rotating seat 220 may be disposed at the end of the rod body 100, the mounting plate 210 may be mounted on the rotating seat 220, the hook knife 230 may be used to cut the portion to be pruned and fixed on the mounting plate 210, the blade 240 may be mounted on one side of the hook knife 230 in the thickness direction, and the blade 240 may form a limiting cavity with the hook knife 230 to accommodate the portion to be pruned (the portion to be pruned in the present disclosure may be the trunk of a tree branch), so that the portion to be pruned may remain unchanged at the current position. Referring to Figure 2 In the present disclosure, the hook knife 230 may include the main body 231 mentioned below, the bottom edge and the end of the main body 231 may be formed with blades for cutting the part to be trimmed, the left and right edges of the blade 240 may be formed with blades, and the blade 240 may rotate in the YZ plane to open or close the opening of the hook knife 230. For example, in the embodiment provided by the present disclosure, when the blade 240 rotates clockwise ( Figure 1 When the blade 240 rotates clockwise (in the direction of the drawing), the hook knife 230 can be closed to form a limiting cavity for accommodating the part to be trimmed. When the blade 240 continues to rotate clockwise, its blade can form a shear force with the blade of the hook knife 230, thereby cutting the part to be trimmed. After the trimming is completed, the blade can rotate counterclockwise ( Figure 1The rotating seat 220 can rotate circumferentially in the XY plane relative to the rod body 100 to drive the mounting plate 210 to rotate, so that the hook knife 230 and the blade 240 can rotate around the axis of the rod body 100, and the mounting plate 210 can rotate in the XZ plane relative to the rotating seat 220, thereby driving the hook knife 230 and the blade 240 to rotate in the XZ plane, thereby adjusting the angle of the cutting portion 200 to be perpendicular to the extension direction of the portion to be trimmed, so as to cut the portion to be trimmed.

[0035] Through the above technical solution, the rotating seat 220 rotates in the XY plane and the mounting plate 210 rotates in the XZ plane, so that the hook knife 230 and the blade 240 can be deflected in the X direction, the Y direction and the Z direction according to the extension direction of the part to be trimmed, so that the blades of the two are respectively perpendicular to the extension direction of the part to be trimmed, and the blade 240 and the hook knife 230 rotate relative to each other, so as to form a limiting cavity for accommodating the part to be trimmed with the hook knife 230 and generate a shear force capable of cutting the part to be trimmed between the hook knife 230, so as to cut the part to be trimmed, thereby improving the adaptability of the trimming device to the part to be trimmed with different extension directions and the convenience and safety during the trimming process.

[0036] Reference Figure 1 and Figure 2 The hook knife 230 includes a main body 231 located in the same plane as the blade 240 and a guide portion 232 arranged on a side of the main body 231 away from the blade 240 and extending along the X direction. When the part to be trimmed is located in the limiting cavity, it abuts against the inner wall of the guide portion 232 to drive the rotating seat 220 and / or the mounting plate 210 to rotate. The guide portion 232 may be formed with an arc-shaped guide groove whose inner wall can fit with the outer wall of the part to be trimmed. The guide portion 232 may be made of a rigid material so that it will not deform during the process of the inner wall of the guide groove and the outer wall of the part to be trimmed at most partially fitting, and can generate friction between the part to be trimmed, and the friction can be converted into mechanical energy, thereby driving the mounting plate 210 and the rotating seat 220 to move. According to some embodiments provided by the present disclosure, the inner contour structure of the guide groove can be matched with the outer contour structure of the portion to be trimmed to increase the contact area between the two during the fitting process, thereby greatly increasing the effect of the friction force, so as to improve the driving effect and driving accuracy of the mounting plate 210 and the rotating seat 220, thereby ensuring that the blade 240 and the hook knife 230 can cut along a predetermined path and avoid inaccurate cutting direction due to offset.

[0037] Reference Figure 1 and Figure 2The hook knife 230 can be constructed as a semicircular plate structure capable of accommodating the part to be trimmed, and the guide portion 232 and the semicircular plate structure can be coaxial and mutually fitted to form a limiting cavity with the blade 240. In this way, it can effectively ensure that the part to be trimmed is accurately limited, making the trimming more accurate. At the same time, the design of the limiting cavity can ensure the stability of the cutting process of the blade 240, avoiding unnecessary vibration or vibration during the trimming of the part to be trimmed, thereby improving the stability of the trimming device.

[0038] Reference Figure 1 and Figure 2 The trimming device may further include a driving unit 300. The driving unit 300 may include a first connecting shaft 310, a driving member 320, and a driving rod 330. The first connecting shaft 310 may be connected between the mounting plate 210 and the blade 240. In the present disclosure, one end of the first connecting shaft 310 may be fixedly connected to the mounting plate 210, and the blade 240 may be connected to the other end of the first connecting shaft 310 so as to be rotatable around the axis of the first connecting shaft 310, so that the blade 240 can rotate relative to the mounting plate 210 in the ZY plane. The driving member 320 may be used to output a driving force. In the embodiment provided in the present disclosure, the driving member 320 may be a driving motor or a telescopic cylinder. One end of the driving rod 330 can be connected to the output end of the driving member 320. When the driving member 320 is a driving motor, one end of the driving rod 330 can be connected to the output shaft of the driving member 320. The other end of the driving rod 330 can be used to cooperate with the blade 240 to transmit the rotational power provided by the driving motor to the blade 240, thereby driving the blade 240 to rotate around the axis of the first connecting shaft 310.

[0039] Reference Figure 2 The cutting part 200 may further include a mounting bar 260 connected at an angle to the mounting plate 210 for fixing the driving member 320. The mounting bar 260 is connected at an angle through the mounting plate 210 to further improve the stability of the mounting position of the driving member 320, reduce the risk of accidental injury caused by the driving member 320 falling off, and improve the safety of the trimming device operation.

[0040] Reference Figure 1 and Figure 2 The driving part 300 further includes a worm wheel 340 coaxially sleeved on the first connecting shaft 310. The end wall of the worm wheel 340 can be snugly fixed on the side of the blade 240 away from the mounting plate 210. The driving rod 330 can be configured as a worm that can mesh with the worm wheel 340. The meshing of the worm wheel 340 and the worm can effectively improve the transmission efficiency, reduce the transmission gap, and reduce energy loss. In addition, the layout between the worm wheel 340 and the worm is relatively compact, and a larger transmission ratio can be achieved in a limited space, which can ensure the transmission effect of the driving force while reducing the space occupied.

[0041] Reference Figure 1 The trimming device may further include a power supply unit 400. The power supply unit 400 may include a battery 410 and a control button 420. The battery 410 may be disposed at one end of the rod body 100 away from the cutting unit 200, that is, when the cutting unit 200 is disposed at the top of the rod body 100, the battery 410 may be disposed at the bottom of the rod body 100, thereby preventing the battery 410 from interfering with the cutting unit 200. The battery 410 may be electrically connected to the driving member 320 to supply power to the driving member 320. The control button 420 may be disposed on the side wall of the rod body 100 close to the battery 410, and may be used to control the on-off of the battery 410 and the driving member 320, so that the operator may conveniently control the on-off of the battery 410 and the driving member 320, so that the trimming device can quickly respond to the operator's work needs, improve work efficiency and reduce operation complexity.

[0042] Reference Figure 2 , the trimming device may further include a second connecting shaft 510 and a torsion spring 520. One end of the second connecting shaft 510 may be fixedly connected to the mounting plate 210, and the other end of the second connecting shaft 510 may be rotatably connected around its own axis and penetrate the rotating seat 220, and the torsion spring 520 may be compressed and connected between the rotating seat 220 and the other end of the second connecting shaft 510. As can be seen from the above, when the guide portion 232 is in contact with the portion to be trimmed, the rotating seat 220 will rotate and the torsion spring 520 may be deformed to store elastic energy. When the trimming is completed, the guide portion 232 leaves the portion to be trimmed, thereby canceling the external force applied to the mounting plate 210 (i.e., the second connecting shaft 510), so that the torsion spring 520 can release the stored elastic energy to push the rotating seat 220 to rotate to the initial position, so as to achieve automatic resetting of the rotating seat 220.

[0043] Reference Figure 1 The trimming device also includes a third connecting shaft 610, one end of which is coaxially sleeved inside the rod body 100 and the other end is fixedly connected to the rotating seat 220. The third connecting shaft 610 is configured to be rotatable around its own axis. While the rotating seat 220 can rotate circumferentially in the XY plane, the third connecting shaft 610 is coaxially sleeved inside the rod body 100, which can effectively save space, making the entire trimming device more compact and easy to carry.

[0044] Reference Figure 1The rod body 100 may include a slide bar 110 and a stop bolt 120. The number of slide bars 110 may be multiple, and the multiple slide bars 110 may be coaxially sleeved in sequence and slidably along the axial direction, so as to change the extension length of the rod body 100, thereby adjusting the cutting part 200 to a suitable position according to the trimming position of the part to be trimmed to meet the use requirements. The stop bolt 120 may pass through one of the two adjacent slide bars 110 in the radial direction and abut against the side wall of the other of the two adjacent slide bars 110, so as to limit the relative sliding of the two slide bars 110 when the cutting part 200 is adjusted to a suitable position, so that the cutting part 200 is limited to the current position unchanged, thereby ensuring the stability and safety of the trimming device during use, and after the trimming is completed, the length of the rod body 100 may be shortened to facilitate the staff to carry.

[0045] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0046] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0047] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A trimming device, comprising a telescopic rod and a cutting portion arranged at one end of the rod, characterized in that: The cutting part comprises: A mounting plate, wherein the end of the rod body is provided with a rotating seat, and the mounting plate is mounted on the rotating seat; A hook knife fixed to the mounting plate; and A blade is mounted on one side of the hook knife in the thickness direction, the blade and the hook knife form a limiting cavity for accommodating the part to be trimmed, and the blade can rotate in the YZ plane to open or close the opening of the hook knife; The rotating seat can rotate circumferentially relative to the rod body in the XY plane, and the mounting plate can rotate relative to the rotating seat in the XZ plane to adjust the angle of the cutting portion to be perpendicular to the extension direction of the portion to be trimmed.

2. The trimming device according to claim 1, characterized in that: The hook knife includes a main body portion located in the same plane as the blade and a guide portion arranged on a side of the main body portion away from the blade and extending along the X direction. When the trimming portion is located in the limiting cavity, it abuts against the inner wall of the guide portion to drive the rotating seat and / or the mounting plate to rotate.

3. The trimming device according to claim 2, characterized in that: The hook knife is constructed as a semicircular plate structure capable of accommodating the portion to be trimmed, and the guide portion is coaxial with the semicircular plate structure and is arranged in close contact with each other to form the limiting cavity with the blade.

4. The trimming device according to claim 1, characterized in that: The trimming device further comprises a driving unit, wherein the driving unit comprises: A first connecting shaft connected between the mounting plate and the blade; A driving member for outputting a driving force; and A driving rod has one end connected to the output end of the driving member and the other end used to cooperate with the blade to drive the blade to rotate around the axis of the first connecting shaft.

5. The trimming device according to claim 4, characterized in that: The cutting portion also includes a mounting bar connected to the mounting plate at an angle for fixing the driving member.

6. The trimming device according to claim 4, characterized in that: The driving part also includes a worm wheel coaxially sleeved on the first connecting shaft, the end wall of the worm wheel is fixed to the side of the blade away from the mounting plate, and the driving rod is configured as a worm meshing with the worm wheel.

7. The trimming device according to claim 4, characterized in that: The trimming device further comprises a power supply unit, which comprises: a storage battery, disposed at one end of the rod body away from the cutting portion and electrically connected to the driving member; and A control button is arranged on the side wall of the rod body near the battery and is used to control the connection and disconnection between the battery and the driving member.

8. The trimming device according to claim 1, characterized in that: The trimming device also includes: A second connecting shaft, one end of which is fixedly connected to the mounting plate, and the other end of which is rotatable around its own axis and penetrates the rotating seat; A torsion spring is compression-connected between the rotating seat and the other end of the second connecting shaft.

9. The trimming device according to claim 1, characterized in that: The trimming device also includes a third connecting shaft with one end coaxially sleeved inside the rod body and the other end fixedly connected to the rotating seat. The third connecting shaft is configured to rotate around its own axis.

10. The trimming device according to claim 1, characterized in that The rod body comprises a plurality of sliding rods which are sleeved in sequence, and a limiting bolt which passes through one of two adjacent sliding rods in radial direction and abuts against a side wall of the other of the two adjacent sliding rods.

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