Tall tree pruning device

Abstract

The utility model belongs to the field of greening, particularly relates to a tall tree pruning device, and aims to solve the problems that in the prior art, a worker needs to hold two handles of a tool with two hands all the time to prune a tall tree, a motor and a saw blade are arranged at the pruning end of the tool, so that arms of the worker are swollen after the tool is used for a long time, and the like. The device comprises a mounting plate; the saw blade and the second motor are used for cutting branches, the second motor is fixedly arranged at the top of the mounting plate, a mounting shaft is fixedly arranged on an output shaft of the second motor, and the outer wall of the mounting shaft is sleeved with the saw blade; the protective shell is used for protecting the second motor, a sliding plate of the device leans against a branch, and an arc-shaped plate can be used for lapping the device on the branch, so that a supporting point can be increased during pruning, and the problem that arms are easily swollen due to long-time lifting of the device for pruning is avoided; and through the adjusting assembly, the device can be extended, so that the saw blade can trim branches located at a higher position.

Description

Technical Field

[0001] The utility model relates to the technical field of greening, in particular to a device for pruning tall trees. Background Art

[0002] In urban greening, it is often necessary to trim the branches of roadside trees, but when the trees are tall, it is difficult to trim them with pruning knives;

[0003] After searching, the utility model with the announcement number CN211047917U provides a tree pruning tool for urban management and greening. The tree pruning tool for urban management and greening includes a tube body; a threaded sleeve, the threaded sleeve is rotatably installed in the tube body, and both ends of the threaded sleeve extend outside the tube body; a threaded rod, the threaded rod is threadedly installed in the threaded sleeve, and the top of the threaded rod extends outside the threaded sleeve; a mounting plate, the mounting plate is fixedly installed on the top of the threaded rod; a mounting seat, the mounting seat is fixedly installed on the top of the mounting plate; a cutting motor, the cutting motor is fixedly installed on one side of the mounting seat; a mounting shaft, the mounting shaft is fixedly installed on the output shaft of the cutting motor;

[0004] When using this tool, the following problems still exist:

[0005] Although the tool can be extended to prune branches of taller trees, the worker needs to hold the two handles of the tool with both hands to prune it during the pruning process. The pruning end of the tool is provided with a motor and a saw blade, which may cause problems such as soreness in the worker's arms when used for a long time. Utility Model Content

[0006] The utility model aims to solve the problem in the prior art that although the tool can be extended to prune the branches of tall trees, the worker needs to hold the two handles of the tool with both hands to prune them during the pruning process, and the pruning end of the tool is provided with a motor and a saw blade, which may cause soreness in the worker's arms when used for a long time.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A tall tree pruning device includes a mounting plate;

[0009] The saw blade and the second motor are used for cutting branches, the second motor is fixedly arranged on the top of the mounting plate, the output shaft of the second motor is fixedly arranged with a mounting shaft, and the saw blade is sleeved on the outer wall of the mounting shaft;

[0010] A protective shell, used to protect the second motor, the protective shell is fixedly arranged on the top of the mounting plate, and the second motor is located inside the protective shell, and the mounting shaft rotates and penetrates the protective shell;

[0011] An auxiliary component is used to support the top of the device when cutting branches. The auxiliary component is arranged inside the protective shell. The auxiliary component includes two groups of outer cylinders, and each group has two. The outer cylinders are fixedly arranged inside the protective shell, and an inner cavity is opened inside the outer cylinders. Outer plates are arranged on both sides of the protective shell. Two inner rods are fixedly arranged on the sides of the two outer plates that are close to each other. One end of the inner rod slides through the protective shell and the outer cylinder and extends to the inside of the inner cavity.

[0012] The adjusting assembly is used for adjusting the height of the saw blade, and the adjusting assembly is arranged below the mounting plate.

[0013] In a possible design, the auxiliary component further includes a compression spring disposed inside the inner cavity, and two ends of the compression spring are respectively fixed to the inner wall of the inner cavity and one end of the inner rod.

[0014] In a possible design, a rubber sealing ring is fixedly sleeved on the outer wall of the inner rod located inside the inner cavity, and an air hole communicating with the inner cavity is opened on the outer wall of the outer cylinder.

[0015] In a possible design, a sliding plate is slidably provided on a side of the outer plate away from the protective shell, and an arc-shaped plate is fixedly provided on the top of the side of the sliding plate away from the protective shell.

[0016] In a possible design, the adjustment assembly includes an installation box arranged below the installation plate, a limiting cylinder is fixedly arranged on the top of the installation box, a threaded cylinder is slidably arranged inside the limiting cylinder, a threaded rod matching the thread is arranged inside the threaded cylinder, one end of the threaded rod is rotated and passed through the interior of the installation box, a first motor with an output shaft and a threaded rod fixedly arranged inside the installation box, and a support assembly is arranged on one side of the limiting cylinder.

[0017] In a possible design, the support assembly includes a support frame arranged on one side of the limiting cylinder, a slot is opened on one side of the installation box, and a rotating rod is rotatably arranged inside the slot, one end of the support frame is fixedly sleeved on the outer wall of the rotating rod, a circular plate is fixedly arranged on one side of the installation box, one end of the rotating rod passes through the circular plate, and a clamping rod is rotatably arranged on one end of the rotating rod, and a plurality of clamping grooves that cooperate with the clamping rod are opened on the side of the circular plate away from the installation box.

[0018] In the present application, when it is used specifically, the first motor drives the threaded rod to rotate, the threaded rod drives the threaded barrel to move upward, the threaded barrel drives the upper saw blade to move upward, and the second motor drives the saw blade to cut, so that branches of tall trees can be cut. When cutting, the sliding plate of the device is placed on the side of the branch close to the tree, and the arc plate can put the device on the branch, so that the cutting end of the device can have a support point, and the device is no longer simply held and lifted with both hands during cutting. Afterwards, when cutting, the sliding plate presses the inner rod through the outer plate to move toward the inside of the outer barrel, and the setting of the rubber sealing ring makes the inner cavity sealed, and the inner rod squeezes the inner cavity. Due to the setting of the air hole, the inner rod moves at a relatively slow speed, so that the saw blade trims it.

[0019] When pruning thicker branches, it takes a longer time to cut. At this time, you can turn the clamping rod to make the rotating rod out of the fixed state, so that the support frame can rotate with the rotating rod, and the support frame can be lowered to the ground for support, thereby reducing the supporting force of both hands. Normally, you only need to put away the support frame.

[0020] In the utility model, the tall tree pruning device can achieve the following goals through the auxiliary components: when pruning branches, the sliding plate is placed against the side of the branch close to the tree, and the arc-shaped plate can place the device on top to serve as a support point. Since the sliding plate and the outer plate are slidingly arranged, the saw blade no longer cuts in a vertical manner, and finally the problem of workers holding the device with both hands for a long time, which may cause soreness in the arms, etc., can be avoided.

[0021] In the utility model, the tall tree pruning device can move the threaded rod upward by adjusting the assembly, thereby driving the saw blade to move to a higher position, so that the saw blade can be used to prune the branches of the tall trees;

[0022] In the utility model, when in use, the sliding plate of the device is placed against the branch, and the arc-shaped plate can place the device on the branch. Through the auxiliary components, an additional support point can be achieved during pruning, thereby avoiding the problem of arm soreness caused by holding the device for a long time for pruning.

[0023] By adjusting the assembly, the device can be extended so that the saw blade can prune branches located higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the main structure of a tall tree pruning device proposed by the utility model;

[0025] Figure 2 This is a rear cross-sectional structural schematic diagram of a tall tree pruning device proposed by the utility model;

[0026] Figure 3It is an enlarged view of part A in the utility model;

[0027] Figure 4 This is a schematic diagram of the explosion structure of a tall tree pruning device proposed by the utility model;

[0028] Figure 5 A schematic diagram of the side cross-sectional structure of a device for pruning tall trees proposed by the utility model;

[0029] Figure 6 The utility model is a schematic diagram of the back structure of a tall tree pruning device.

[0030] In the figure: 1, saw blade; 2, limit cylinder; 4, mounting box; 5, card slot; 6, protective shell; 7, mounting plate; 8, outer plate; 9, sliding plate; 10, inner rod; 11, second motor; 14, mounting shaft; 15, arc plate; 16, rubber sealing ring; 17, inner cavity; 18, compression spring; 19, outer cylinder; 20, air hole; 21, first motor; 22, rotating rod; 24, threaded rod; 25, threaded cylinder; 27, round plate; 28, card rod; 29, support frame;

[0031] 3. Handle; 12. T-shaped plate; 13. T-shaped slot; 23. Limit plate; 26. Limit slot. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Example 1

[0034] Reference Figure 2 , Figure 4 A tall tree pruning device, which is used in the field of greening, comprises: a mounting plate 7, a second motor 11 is fixedly arranged on the top of the mounting plate 7, an output shaft of the second motor 11 is fixedly provided with a mounting shaft 14, and a saw blade 1 is sleeved on the outer wall of the mounting shaft 14;

[0035] In the above technical solution, the second motor 11 drives the saw blade 1 to rotate and trim.

[0036] Reference Figure 4 , the protective shell 6 is fixedly arranged on the top of the mounting plate 7, and the second motor 11 is located inside the protective shell 6, and the mounting shaft 14 rotates and penetrates the protective shell 6;

[0037] In the above technical solution, the second motor 11 is protected.

[0038] Reference Figure 4, outer plates 8 are provided on both sides of the protective shell 6, a sliding plate 9 is slidably provided on the side of the outer plate 8 away from the protective shell 6, and an arc plate 15 is fixedly provided on the top of the side of the sliding plate 9 away from the protective shell 6;

[0039] In the above technical solution, when cutting, the sliding plate 9 of the device is placed against the side of the branch close to the tree, and the arc plate 15 can place the device on the branch, so that the cutting end of the device can have a support point, and it is held by the handle 3 arranged on one side of the limit cylinder 2 and the bottom of the installation box 4. When cutting, the device is no longer simply held with both hands to lift it, avoiding the problem of arm soreness caused by holding the device for a long time for pruning.

[0040] Reference Figure 2-3 The auxiliary assembly includes two groups of outer cylinders 19, each group has two, the outer cylinder 19 is fixedly arranged inside the protective shell 6, and the inner cavity 17 is opened inside the outer cylinder 19, and two inner rods 10 are fixedly arranged on the side close to the two outer plates 8, and one end of the inner rod 10 slides through the protective shell 6 and the outer cylinder 19 and extends to the inside of the inner cavity 17;

[0041] The outer wall of the inner rod 10 located inside the inner cavity 17 is fixedly sleeved with a rubber sealing ring 16, and the outer wall of the outer cylinder 19 is provided with an air hole 20 connected to the inner cavity 17;

[0042] In the above technical solution, during cutting, the sliding plate 9 presses the inner rod 10 through the outer plate 8 to move toward the inside of the outer tube 19, and the setting of the rubber sealing ring 16 makes the inner cavity 17 sealed. The inner rod 10 squeezes the inner cavity 17, and due to the setting of the air hole 20, the inner rod 10 moves at a relatively slow speed, so that the saw blade 1 trims it.

[0043] refer to Figure 5 The adjustment assembly includes a mounting box 4 arranged below the mounting plate 7, a limiting cylinder 2 is fixedly arranged on the top of the mounting box 4, a threaded cylinder 25 is slidably arranged inside the limiting cylinder 2, a threaded rod 24 matching with the thread is arranged inside the threaded cylinder 25, one end of the threaded rod 24 rotates and penetrates into the mounting box 4, and a first motor 21 is fixedly arranged inside the mounting box 4 with an output shaft and the threaded rod 24;

[0044] In the above technical solution, the first motor 21 drives the threaded rod 24 to rotate, the threaded rod 24 drives the threaded barrel 25 to move upward, and the threaded barrel 25 drives the upper saw blade 1 to move upward so that branches of tall trees can be cut.

[0045] Example 2

[0046] refer to Figure 3, improved on the basis of Example 1: the auxiliary component further includes a compression spring 18 arranged inside the inner cavity 17, and the two ends of the compression spring 18 are respectively fixedly arranged on the inner wall of the inner cavity 17 and one end of the inner rod 10;

[0047] In the above technical solution, the inner rod 10 is reset by the compression spring 18 .

[0048] refer to Figure 5-6 The support assembly includes a support frame 29 arranged on one side of the limiting cylinder 2, a slot is opened on one side of the installation box 4, and a rotating rod 22 is rotatably arranged inside the slot, one end of the support frame 29 is fixedly sleeved on the outer wall of the rotating rod 22, a circular plate 27 is fixedly arranged on one side of the installation box 4, one end of the rotating rod 22 passes through the circular plate 27, and a clamping rod 28 is rotatably arranged on one end of the rotating rod 22, and a plurality of clamping grooves 5 are opened on one side of the circular plate 27 away from the installation box 4, each of which is matched with the clamping rod 28;

[0049] In the above technical solution, when pruning thicker branches, it takes a longer time to cut. At this time, the clamping rod 28 can be rotated to make the rotating rod 22 out of the fixed state, so that the support frame 29 can rotate with the rotating rod 22, and the support frame 29 can be lowered to support the ground, thereby reducing the supporting force of both hands. Normally, you only need to fold the support frame 29.

[0050] refer to Figure 4 , the sliding effect of the sliding plate 9 is achieved by opening the T-shaped groove 13 on the outer plate 8 and the T-shaped plate on the sliding plate 9;

[0051] refer to Figure 5 By fixing a limiting plate 23 on the outer wall of the threaded tube 25 and opening a limiting groove 26 on the outer wall of the limiting tube 2, the threaded tube 25 can slide up and down.

[0052] However, as is well known to those skilled in the art, the working principles and wiring methods of the second motor 11 and the first motor 21 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tall tree pruning device, characterized in that: include: Mounting plate (7); A saw blade (1) and a second motor (11) are used for cutting tree branches, wherein the second motor (11) is fixedly arranged on the top of a mounting plate (7), an output shaft of the second motor (11) is fixedly arranged with a mounting shaft (14), and the saw blade (1) is sleeved on an outer wall of the mounting shaft (14); A protective shell (6) for protecting the second motor (11), wherein the protective shell (6) is fixedly arranged on the top of the mounting plate (7), and the second motor (11) is located inside the protective shell (6), and the mounting shaft (14) rotates and penetrates the protective shell (6); An auxiliary component is used to support the top of the device when cutting branches. The auxiliary component is arranged inside the protective shell (6). The auxiliary component includes two groups of outer cylinders (19), and each group has two outer cylinders. The outer cylinders (19) are fixedly arranged inside the protective shell (6), and an inner cavity (17) is opened inside the outer cylinders (19). Outer plates (8) are arranged on both sides of the protective shell (6). Two inner rods (10) are fixedly arranged on the sides of the two outer plates (8) that are close to each other. One end of the inner rod (10) slides through the protective shell (6) and the outer cylinder (19) and extends to the inside of the inner cavity (17); An adjustment component is used to adjust the height of the saw blade (1), and the adjustment component is arranged below the mounting plate (7).

2. A tall tree pruning device according to claim 1, characterized in that: The auxiliary component also includes a compression spring (18) arranged inside the inner cavity (17), and two ends of the compression spring (18) are respectively fixedly arranged on the inner wall of the inner cavity (17) and one end of the inner rod (10).

3. A tall tree pruning device according to claim 2, characterized in that: The outer wall of the inner rod (10) located inside the inner cavity (17) is fixedly sleeved with a rubber sealing ring (16), and the outer wall of the outer cylinder (19) is provided with an air hole (20) communicating with the inner cavity (17).

4. A tall tree pruning device according to claim 2, characterized in that: A sliding plate (9) is slidably arranged on the side of the outer plate (8) away from the protective shell (6), and an arc-shaped plate (15) is fixedly arranged on the top of the side of the sliding plate (9) away from the protective shell (6).

5. The tall tree pruning device according to claim 1, characterized in that: The adjustment assembly comprises a mounting box (4) arranged below the mounting plate (7); a limiting cylinder (2) is fixedly arranged on the top of the mounting box (4); a threaded cylinder (25) is slidably arranged inside the limiting cylinder (2); a threaded rod (24) matching with the thread is arranged inside the threaded cylinder (25); one end of the threaded rod (24) is rotated to penetrate into the interior of the mounting box (4); a first motor (21) with an output shaft and the threaded rod (24) fixedly arranged inside the mounting box (4); and a support assembly is arranged on one side of the limiting cylinder (2).

6. A tall tree pruning device according to claim 5, characterized in that: The support assembly comprises a support frame (29) arranged on one side of the limiting cylinder (2); a groove is provided on one side of the installation box (4), and a rotating rod (22) is rotatably provided inside the groove; one end of the support frame (29) is fixedly sleeved on the outer wall of the rotating rod (22); a circular plate (27) is fixedly provided on one side of the installation box (4); one end of the rotating rod (22) passes through the circular plate (27), and a clamping rod (28) is rotatably provided on one end of the rotating rod (22); a plurality of clamping grooves (5) that are matched with the clamping rod (28) are provided on the side of the circular plate (27) away from the installation box (4).

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