High-stability trunk pruning device

Abstract

The invention discloses a high-stability trunk pruning device, and relates to the technical field of pruning devices.The high-stability trunk pruning device comprises a base, a fixed pruning device is arranged on a supporting frame, and the fixed pruning device comprises a rotating plate rotationally connected with the supporting frame; the fixed frame is fixedly connected with the rotating plate; the clamping mechanism is arranged on the fixing frame; the trimming mechanism is arranged on the fixing frame; and the positioning mechanism is fixedly arranged on the support of the support frame. By means of the arrangement mode that the clamping mechanism, the pruning mechanism and the positioning mechanism are matched, the fixing frame can be positioned at different angles through the positioning mechanism, branches needing to be pruned can be clamped and fixed through the clamping mechanism, at the moment, cutting can be conducted through the pruning mechanism, pruning does not need to be conducted under the trees, and the risk that the branches fall off to be injured is avoided; and meanwhile, the branches are clamped and fixed, violent shaking during cutting is avoided, the electric wire cannot be hit during breakage, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field related to pruning devices, and in particular to a tree trunk pruning device with high stability. Background Art

[0002] When planning the laying of cable lines, for comprehensive considerations of safety and stability, they are generally cleverly placed along roadsides or relatively far away from areas with dense human activity. However, these areas are often inevitably filled with numerous trees, which, as they grow, can affect the normal use of the lines, necessitating regular pruning of the trees to remove any obstructions.

[0003] In the process of clearing tree obstacles, some trees cannot be cut down from the roots or undergo large-scale pruning. Only branches close to the power lines can be pruned, which requires climbing the tree for pruning, thus creating safety hazards. When using a telescopic saw to prune under the tree, you will encounter single flexible branches such as willows and mulberry trees. Because there is no fulcrum, the branches will swing back and forth with the force of the saw, and it is easy to come into contact with the power lines, causing short circuits or grounding faults. It is also possible that the pruned branches will hit the power lines or operators, which is more inconvenient. Summary of the Invention

[0004] The object of the present invention is to provide a highly stable tree trunk pruning device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a highly stable tree trunk pruning device, comprising a base, a cylinder fixedly mounted on the base, and an output end of the cylinder being transmission-connected to a support frame;

[0006] The support frame is provided with a fixed trimming device, and the fixed trimming device includes:

[0007] A rotating plate, the rotating plate being rotatably connected to the support frame via a rotating shaft;

[0008] A fixed frame, the fixed frame being fixedly connected to the rotating plate;

[0009] A clamping mechanism, the clamping mechanism being arranged on the fixing frame and being used for fixing and supporting the tree trunk;

[0010] A pruning mechanism, which is arranged on a fixed frame and is used to cut the tree trunk;

[0011] The positioning mechanism is located on the fixing frame and the supporting frame, and is used for multi-point positioning of the fixing frame.

[0012] Preferably, the clamping mechanism includes:

[0013] A fixing plate, the fixing plate being fixedly connected to the top end of the fixing frame;

[0014] Sliding rod, the top of the fixed plate is symmetrically provided with a sliding groove, and the end of the sliding rod is slidably connected with the inner cavity of the sliding groove;

[0015] A driving rod, the end of which is rotatably disposed inside the sliding groove;

[0016] A slider, the slider is located inside the slide groove, the slider is slidably connected with the slide rod, and the slider and the drive rod form a screw transmission;

[0017] A clamping plate, the clamping plate is fixedly connected to the top of the slider, the cross section of the clamping plate is arc-shaped, and the inner wall of the clamping plate is provided with anti-slip texture;

[0018] The transmission assembly is arranged inside the fixing frame and is used to drive the driving rod to rotate.

[0019] Preferably, the transmission assembly includes:

[0020] A rotating rod, the rotating rod being rotatably connected to the fixed frame through a bearing;

[0021] A first gear, the first gear being fixedly interpenetratingly connected to an end portion of the driving rod;

[0022] a second gear, the second gear being fixedly connected to the top end of the rotating rod and interlaced therewith, and the first gear being meshed with the second gear;

[0023] a sleeve, wherein the sleeve is sleeved on the outside of the rotating rod;

[0024] An extrusion plate is fixedly connected to the outside of the sleeve at equal intervals, and the extrusion plate cooperates with the trimming mechanism.

[0025] Preferably, the transmission assembly further includes:

[0026] A sliding block, wherein a sliding groove is provided at the bottom end of the inner wall of the fixing frame, and the sliding block is slidably connected with the inner cavity of the sliding groove;

[0027] A positioning rod, the positioning rod is fixedly connected to the top of the sliding block, and positioning holes are equidistantly formed at the bottom end of the sleeve, and the positioning rod is slidably connected with the inner cavity of the positioning hole;

[0028] A tension spring, one end of which is fixedly connected to the sliding block, and the other end of which is fixedly connected to the inner wall of the sliding groove.

[0029] Preferably, the trimming mechanism comprises:

[0030] A moving block, the moving block being arranged at the top end of the fixing frame;

[0031] a driving member, the driving member being slidably disposed inside the moving block;

[0032] A cutting wheel, wherein the output end of the driving member is in transmission connection with the cutting wheel, a through slot is provided inside the moving block, and the cutting wheel is slidably interlaced with the inner cavity of the through slot;

[0033] A push rod, one end of which is fixedly connected to the bottom end of the driving member;

[0034] A tripod, wherein the tripod is slidably arranged inside the fixed frame, and the other end of the top rod is slidably interlaced with the tripod;

[0035] A slide, which is slidably sleeved on the outside of the sleeve, is located between the multiple extrusion plates, and is fixedly connected to one side of the tripod;

[0036] The adjusting component is arranged inside the fixing frame and is used to adjust the cutting position of the cutting wheel.

[0037] Preferably, the adjustment component includes:

[0038] A screw rod, wherein the top of the fixing frame is symmetrically provided with a movable groove, and the end of the screw rod is rotatably connected with the inner wall of one of the movable grooves;

[0039] a fixed rod, the end of which is fixedly connected to the inner wall of the other movable groove;

[0040] The mounting plate, one of the mounting plates and the screw rod forms a screw drive, the other mounting plate is slidably and interlacedly connected with the fixed rod, and the mounting plate is fixedly connected to the bottom end of the moving block.

[0041] Preferably, the positioning mechanism includes:

[0042] Ratchet, the top of the support frame is symmetrically provided with grooves, the ratchet is fixedly connected to the inner wall of the groove, and the ratchet teeth of the ratchet are in opposite directions;

[0043] A clamping rod, wherein a rotating groove is formed on the inner wall of the rotating plate near the groove, the ratchet is located inside the rotating groove, and a clamping groove is formed on the inner wall of the rotating groove. One end of the clamping rod is slidably connected with the inner cavity of the clamping groove, and the other end of the clamping rod cooperates with the ratchet. The cross-section of the clamping rod is T-shaped;

[0044] A pull plate, the pull plate being symmetrically arranged outside the fixing frame;

[0045] A connecting rope, one end of which is fixedly connected to the clamping rod, and the other end of which is fixedly connected to the pull plate;

[0046] A reversing wheel, wherein the interior of the fixing frame is provided with reversing grooves at equal intervals, the reversing wheel is rotatably arranged inside the reversing grooves, and the connecting rope passes through the fixing frame and cooperates with the reversing wheel;

[0047] A compression spring is sleeved on the outside of the connecting rope.

[0048] Preferably, one end of the compression spring is fixedly connected to the clamping rod, and the other end of the compression spring is fixedly connected to the inner wall of the clamping groove.

[0049] Preferably, a handle is symmetrically fixedly connected to the outer wall of the fixing frame, the pull plate is located inside the handle, and a slot for inserting a finger is provided at the top of the pull plate.

[0050] Preferably, a battery is fixedly connected to the top of the base, and a control box is fixedly connected to the top of the base, and the battery is located inside the control box.

[0051] Technical effects and advantages of the present invention:

[0052] (1) The present invention utilizes a configuration in which a clamping mechanism, a pruning mechanism, and a positioning mechanism cooperate with each other. The positioning mechanism can position the fixing frame at different angles, so that the clamping mechanism can clamp and fix the branch to be pruned. At this time, the branch can be cut by the pruning mechanism without manual pruning under the tree. There is no risk of falling and being injured. At the same time, the branch is clamped and fixed, and will not shake violently during cutting, nor will it hit the wire when broken, making it easy to use.

[0053] (2) The present invention utilizes a configuration in which a rotating rod, a sleeve, and an extrusion plate cooperate with each other. The sleeve not only drives the rotating rod to rotate, so that the rotating rod can drive multiple clamping plates to move closer to or away from each other, thereby clamping and fixing branches of different thicknesses, but also drives the cutting wheel inside the moving block to extend out of the through slot through the extrusion plate to cut the branches, which is convenient for use;

[0054] (3) The present invention utilizes a configuration in which a screw, a fixing rod, and a mounting plate cooperate with each other. The rotation of the screw allows the mounting plate to drive the moving block to move, thereby adjusting the position of the cutting wheel. The cutting length and the distance between the clamping points can be adjusted according to the size of the branch, thereby improving the stability and force effect during clamping.

[0055] (4) The present invention utilizes a setting mode in which a ratchet, a coupling rod, a pull plate and a connecting rope are matched with each other. The connecting rope can be pulled by the pull plate to disengage the coupling rod from the ratchet, and the fixing frame can be rotated normally. After adjusting to a suitable angle position, the pull plate can be loosened, so that the coupling rod can be re-engaged with the ratchet under the elastic force of the compression spring, thereby limiting the rotation of the fixing frame. There is no need to continuously support the fixing frame. When a tree is cut and broken, the fixing frame will not be overturned due to the sudden increase in weight of the tree, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0057] Figure 2 This is one of the schematic diagrams of the overall front internal structure of the present invention.

[0058] Figure 3 This is a schematic diagram of the internal structure of the fixing bracket of the present invention.

[0059] Figure 4 This is a schematic diagram of the internal structure of the support frame of the present invention.

[0060] Figure 5 This is the second schematic diagram of the overall front internal structure of the present invention.

[0061] Figure 6 This is a schematic diagram of the internal structure of the moving block of the present invention.

[0062] Figure 7 It is a schematic diagram of the internal structure of the tripod at the front of the present invention.

[0063] Figure 8 This is a schematic diagram of the internal structure of the positioning rod at the front of the present invention.

[0064] Figure 9 It is a schematic diagram of the internal structure of the clamping plate on the side of the present invention.

[0065] Figure 10 It is a schematic diagram of the internal structure of the sleeve at the side of the present invention.

[0066] Figure 11 This is a schematic diagram of the internal structure of the positioning mechanism of the present invention.

[0067] Figure 12 This is a schematic diagram of the internal structure of the adjustment component of the present invention viewed from above.

[0068] In the figure: 1, base; 2, cylinder; 3, support frame; 4, rotating plate; 5, fixed frame; 6, clamping mechanism; 61, fixed plate; 62, slide bar; 63, driving rod; 64, slider; 65, clamping plate; 66, transmission assembly; 661, rotating rod; 662, first gear; 663, second gear; 664, sleeve; 665, extrusion plate; 666, sliding block; 667, positioning rod; 668, tension spring; 7 , trimming mechanism; 71. Moving block; 72. Driving part; 73. Cutting wheel; 74. Push rod; 75. Tripod; 76. Slide; 77. Adjustment assembly; 771. Screw; 772. Fixing rod; 773. Mounting plate; 8. Positioning mechanism; 81. Ratchet; 82. Clamping rod; 83. Pull plate; 84. Connecting rope; 85. Reversing wheel; 86. Compression spring; 9. Handle; 10. Battery; 11. Control box. DETAILED DESCRIPTION

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0070] The present invention provides Figure 1-12 A highly stable tree trunk pruning device is shown, comprising a base 1, on which a cylinder 2 is fixedly mounted. The cylinder 2 is electrically connected to an external power supply via an external switch, and an output end of the cylinder 2 is transmission-connected to a support frame 3.

[0071] A fixed pruning device is provided on the support frame 3, and the fixed pruning device includes: a rotating plate 4, a fixed frame 5, a clamping mechanism 6, a pruning mechanism 7 and a positioning mechanism 8. The rotating plate 4 is rotatably connected to the support frame 3 through a rotating shaft; the fixed frame 5 is fixedly connected to the rotating plate 4; the clamping mechanism 6 is provided on the fixed frame 5 for fixedly supporting the tree trunk; the pruning mechanism 7 is provided on the fixed frame 5 for cutting the tree trunk; the positioning mechanism 8 is provided on the fixed frame 5 and the support frame 3 bracket for multi-point positioning of the fixed frame 5.

[0072] 63, and the like.

[0073] Furthermore, the transmission assembly 66 includes: a rotating rod 661, a first gear 662, a second gear 663, a sleeve 664 and an extrusion plate 665. The rotating rod 661 is rotatably connected to the fixed frame 5 through a bearing; the first gear 662 is fixedly connected to the end of the driving rod 63; the second gear 663 is fixedly connected to the top of the rotating rod 661, and the first gear 662 is meshed with the second gear 663; the sleeve 664 is sleeved on the outside of the rotating rod 661; the extrusion plate 665 is fixedly connected to the rotating rod 661 at an equal distance. On the outside of the sleeve 664, the squeezing plate 665 cooperates with the trimming mechanism 7. Through the sleeve 664, not only can the rotating rod 661 be driven to rotate, so that the rotating rod 661 can drive multiple first gears 662 to rotate through the second gear 663, thereby driving multiple clamping plates 65 to move closer to or away from each other, so as to clamp and fix branches of different thicknesses, but also the cutting wheel 73 inside the moving block 71 can be driven by the squeezing plate 665 to extend out of the through slot to cut the branches, which is convenient for use.

[0074] Furthermore, the transmission assembly 66 also includes: a sliding block 666, a positioning rod 667 and a tension spring 668. A sliding groove is provided at the bottom end of the inner wall of the fixed frame 5, and the sliding block 666 is slidably inserted and connected with the inner cavity of the sliding groove; the positioning rod 667 is fixedly connected to the top of the sliding block 666, and positioning holes are equidistantly provided at the bottom end of the sleeve 664, and the positioning rod 667 is slidably inserted and connected with the inner cavity of the positioning hole; one end of the tension spring 668 is fixedly connected to the sliding block 666, and the other end of the tension spring 668 is fixedly connected to the inner wall of the sliding groove. The sleeve 664 can be positioned by the positioning rod 667, so that the extrusion plate 665 located above can squeeze and limit the tripod 75 next to the slide 76, so that the cutting wheel 73 can be stably stored in the interior of the moving block 71 while the sleeve 664 is positioned, which is convenient for storage and use when the device is not used.

[0075] Specifically, the trimming mechanism 7 includes: a moving block 71, a driving member 72, a cutting wheel 73, a top rod 74, a tripod 75, a slide 76 and an adjustment assembly 77. The moving block 71 is arranged at the top of the fixed frame 5; the driving member 72 is slidably arranged inside the moving block 71, and a mounting seat is fixed to the bottom end of the driving member 72. The mounting seat can drive the driving member 72 to move inside the moving block 71. The driving member 72 is a motor; the output end of the driving member 72 is connected to the cutting wheel 73 in a transmission manner. A through groove is provided inside the moving block 71, and the cutting wheel 73 is connected to the through groove. The inner cavity is slidably connected; one end of the push rod 74 is fixedly connected to the bottom end of the driving member 72; the tripod 75 is slidably arranged inside the fixed frame 5, and the tripod 75 can slide inside the fixed frame 5 through a T-shaped slider, and the other end of the push rod 74 is slidably connected to the tripod 75; the slide 76 is slidably sleeved on the outside of the sleeve 664, the slide 76 is located between multiple extrusion plates 665, and the slide 76 is fixedly connected to one side of the tripod 75; the adjustment component 77 is arranged inside the fixed frame 5, for adjusting the cutting position of the cutting wheel 73.

[0076] Furthermore, the adjusting assembly 77 includes: a screw 771, a fixing rod 772 and a mounting plate 773. The top of the fixing frame 5 is symmetrically provided with a movable groove, and the end of the screw 771 is rotatably and interlacedly connected with the inner wall of one of the movable grooves; the end of the fixing rod 772 is fixedly connected to the inner wall of the other movable groove; one of the mounting plates 773 and the screw 771 form a screw transmission, and the other mounting plate 773 is slidably and interlacedly connected with the fixing rod 772, and the mounting plate 773 is fixedly connected to the bottom end of the movable block 71. The rotation of the screw 771 can make the mounting plate 773 drive the movable block 71 to move, thereby adjusting the cutting position of the cutting wheel 73, so that the cutting length and the distance between the clamping points can be adjusted according to the size of the branch, thereby improving the stability and force effect during clamping.

[0077] Specifically, the positioning mechanism 8 includes: a ratchet 81, a clamping rod 82, a pull plate 83, a connecting rope 84, a reversing wheel 85 and a compression spring 86. The top of the support frame 3 is symmetrically provided with a groove, and the ratchet 81 is fixedly connected to the inner wall of the groove. The ratchet teeth of the ratchet 81 are in opposite directions; the rotating plate 4 is provided with a rotating groove near the inner wall of the groove, and the ratchet 81 is located inside the rotating groove. The inner wall of the rotating groove is provided with a clamping groove, and one end of the clamping rod 82 is slidably connected with the inner cavity of the clamping groove. The other end of the clamping rod 82 cooperates with the ratchet 81, and the cross section of the clamping rod 82 is T-shaped; the pull plate 83 is symmetrically arranged on the outside of the fixing frame 5; one end of the connecting rope 84 is fixedly connected to the clamping rod 82, and the other end of the connecting rope 84 is fixedly connected to the pull plate 83. The connecting rope 84 can be pulled by the pull plate 83 to make the clamping rod 82 disengage from the ratchet 81, and the fixing frame 5 can be rotated normally. After adjusting to a suitable angle position, the pull plate 83 can be loosened, so that the clamping rod 82 can be disengaged from the ratchet 81. Under the elastic force of the compression spring 86, the clamping rod 82 is re-connected with the ratchet 81, thereby limiting the rotation of the fixing frame 5. There is no need to continuously support the fixing frame 5. When the tree is cut and broken, the fixing frame 5 will not be overturned due to the sudden increase in weight of the tree, which is convenient for use; reversing grooves are equidistantly provided inside the fixing frame 5, and the reversing wheel 85 is rotatably arranged inside the reversing groove. The connecting rope 84 passes through the fixing frame 5 and cooperates with the reversing wheel 85. The setting of the reversing wheel 85 avoids direct friction between the connecting rope 84 and the fixing frame 5, thereby extending the service life of the device; the compression spring 86 is sleeved on the outside of the connecting rope 84, one end of the compression spring 86 is fixedly connected to the clamping rod 82, and the other end of the compression spring 86 is fixedly connected to the inner wall of the clamping groove. The compression spring 86 is always in a compressed state, thereby providing a stable elastic force to the clamping rod 82, so that the pull plate 83 can be stably clamped with the ratchet 81 when not pulled.

[0078] Furthermore, a handle 9 is symmetrically fixedly connected to the outer wall of the fixing frame 5, and a pull plate 83 is located inside the handle 9. A slot for inserting a finger is provided at the top of the pull plate 83. The pull plate 83 is located inside the handle 9, which makes it easy to release the positioning while holding the handle 9, thereby facilitating the rotation and adjustment of the fixing frame 5.

[0079] Furthermore, a battery 10 is fixedly connected to the top of the base 1, and a control box 11 is fixedly connected to the top of the base 1. The start and stop of the cylinder 2 and the drive member 72 can be controlled by the control panel on the control box 11. The battery 10 can provide the required electrical energy, and the battery 10 and the control box 11 maintain the balance of the entire device.

[0080] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A highly stable tree trunk pruning device comprising: A base (1), a cylinder (2) is fixedly mounted on the base (1), and an output end of the cylinder (2) is transmission-connected to a support frame (3); It is characterized in that a fixed trimming device is provided on the support frame (3), and the fixed trimming device comprises: A rotating plate (4), the rotating plate (4) being rotatably connected to the support frame (3) via a rotating shaft; A fixed frame (5), wherein the fixed frame (5) is fixedly connected to the rotating plate (4); A clamping mechanism (6), the clamping mechanism (6) being arranged on the fixing frame (5) and being used for fixing and supporting the tree trunk; A pruning mechanism (7), the pruning mechanism (7) being arranged on the fixing frame (5) and being used for cutting the tree trunk; A positioning mechanism (8) is provided on the fixing frame (5) and the support frame (3) and is used for multi-point positioning of the fixing frame (5).

2. A highly stable tree trunk pruning device according to claim 1, characterized in that: The clamping mechanism (6) comprises: A fixing plate (61), wherein the fixing plate (61) is fixedly connected to the top end of the fixing frame (5); A sliding rod (62), wherein a sliding groove is symmetrically provided on the top of the fixing plate (61), and the end of the sliding rod (62) is slidably connected with the inner cavity of the sliding groove; A driving rod (63), the end of which is rotatably disposed inside the sliding groove; A slider (64), the slider (64) is located inside the slide groove, the slider (64) is slidably connected with the slide rod (62), and the slider (64) and the drive rod (63) form a screw transmission; A clamping plate (65), the clamping plate (65) is fixedly connected to the top end of the slider (64), the cross section of the clamping plate (65) is arc-shaped, and the inner wall of the clamping plate (65) is provided with anti-slip texture; A transmission assembly (66) is arranged inside the fixing frame (5) and is used to drive the driving rod (63) to rotate.

3. A highly stable tree trunk pruning device according to claim 2, characterized in that: The transmission assembly (66) comprises: A rotating rod (661), the rotating rod (661) is rotatably connected to the fixed frame (5) through a bearing; A first gear (662), the first gear (662) is fixedly connected to the end of the driving rod (63); A second gear (663), the second gear (663) is fixedly connected to the top end of the rotating rod (661), and the first gear (662) is meshed with the second gear (663); a sleeve (664), wherein the sleeve (664) is sleeved on the outside of the rotating rod (661); An extrusion plate (665) is fixedly connected to the outside of the sleeve (664) at equal intervals, and the extrusion plate (665) cooperates with the trimming mechanism (7).

4. A highly stable tree trunk pruning device according to claim 3, characterized in that: The transmission assembly (66) further comprises: A sliding block (666), wherein a sliding groove is provided at the bottom end of the inner wall of the fixing frame (5), and the sliding block (666) is slidably connected with the inner cavity of the sliding groove; A positioning rod (667), the positioning rod (667) is fixedly connected to the top of the sliding block (666), and the bottom end of the sleeve (664) is provided with positioning holes at equal intervals, and the positioning rod (667) is slidably connected with the inner cavity of the positioning hole; A tension spring (668), one end of which is fixedly connected to the sliding block (666), and the other end of which is fixedly connected to the inner wall of the sliding groove.

5. A highly stable tree trunk pruning device according to claim 3, characterized in that: The trimming mechanism (7) comprises: A moving block (71), wherein the moving block (71) is arranged at the top end of the fixing frame (5); A driving member (72), wherein the driving member (72) is slidably disposed inside the moving block (71); A cutting wheel (73), wherein the output end of the driving member (72) is in transmission connection with the cutting wheel (73), a through slot is provided inside the moving block (71), and the cutting wheel (73) is slidably connected with the inner cavity of the through slot; A push rod (74), one end of which is fixedly connected to the bottom end of the driving member (72); A tripod (75), wherein the tripod (75) is slidably arranged inside the fixed frame (5), and the other end of the top rod (74) is slidably connected to the tripod (75); A slide (76), the slide (76) is slidably sleeved on the outside of the sleeve (664), the slide (76) is located between a plurality of extrusion plates (665), and the slide (76) is fixedly connected to one side of the tripod (75); An adjusting component (77) is arranged inside the fixing frame (5) and is used to adjust the cutting position of the cutting wheel (73).

6. A highly stable tree trunk pruning device according to claim 5, characterized in that: The adjustment assembly (77) comprises: A screw rod (771), the top of the fixing frame (5) is symmetrically provided with a movable groove, and the end of the screw rod (771) is rotatably connected to the inner wall of one of the movable grooves; a fixed rod (772), the end of which is fixedly connected to the inner wall of the other movable groove; The mounting plate (773) is fixedly connected to the bottom end of the moving block (71), wherein one of the mounting plates (773) and the screw rod (771) forms a screw transmission, and the other mounting plate (773) is slidably connected to the fixed rod (772).

7. A highly stable tree trunk pruning device according to claim 1, characterized in that: The positioning mechanism (8) comprises: A ratchet (81), wherein a groove is symmetrically provided on the top of the support frame (3), and the ratchet (81) is fixedly connected to the inner wall of the groove, and the ratchet teeth of the ratchet (81) are in opposite directions; A clamping rod (82), wherein the inner wall of the rotating plate (4) close to the groove is provided with a rotating groove, the ratchet (81) is located inside the rotating groove, and the inner wall of the rotating groove is provided with a clamping groove, one end of the clamping rod (82) is slidably connected with the inner cavity of the clamping groove, and the other end of the clamping rod (82) cooperates with the ratchet (81), and the cross section of the clamping rod (82) is T-shaped; A pull plate (83), the pull plate (83) being symmetrically arranged outside the fixing frame (5); A connecting rope (84), one end of which is fixedly connected to the clamping rod (82), and the other end of which is fixedly connected to the pull plate (83); A reversing wheel (85), wherein reversing grooves are equidistantly formed inside the fixing frame (5), the reversing wheel (85) is rotatably arranged inside the reversing grooves, and the connecting rope (84) passes through the fixing frame (5) and cooperates with the reversing wheel (85); A compression spring (86) is sleeved on the outside of the connecting rope (84).

8. A highly stable tree trunk pruning device according to claim 7, characterized in that: One end of the compression spring (86) is fixedly connected to the clamping rod (82), and the other end of the compression spring (86) is fixedly connected to the inner wall of the clamping groove.

9. A highly stable tree trunk pruning device according to claim 7, characterized in that: The outer wall of the fixing frame (5) is symmetrically fixedly connected with a handle (9), the pull plate (83) is located inside the handle (9), and a slot for inserting a finger is provided at the top of the pull plate (83).

10. The high-stability tree trunk pruning device according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a battery (10), the top of the base (1) is fixedly connected to a control box (11), and the battery (10) is located inside the control box (11).

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