Portable tree pruning tool

Abstract

The utility model discloses a portable tree pruning tool, which belongs to the technical field of tree pruning tools, and comprises a cutting knife used for cutting off a tree at a high position; the supporting assembly comprises a grab handle which is used for holding and driving the cutting knife to cut off the tree in a reciprocating manner; the pulling assembly comprises a limiting strip for limiting when the grab handle is pulled; the adjusting assembly comprises an extension rod which slides in the grab handle and is used for installing the cutting knife and adjusting the height of the cutting knife. By arranging the supporting assembly, a worker can be prevented from lifting a heavy object for a long time when trimming trees at high positions, then the physical strength of the worker is saved, the working efficiency is improved, the worker can step on the supporting assembly to ensure the stability, and by arranging the pulling assembly, the limiting and protection effects can be achieved when the trees are trimmed; and the effective pulling distance is also beneficial to reducing physical output.

Description

Technical Field

[0001] This utility model relates to the technical field of tree pruning tools, specifically a portable tree pruning tool. Background Technology

[0002] Trees are an important part of landscaping and need to be pruned regularly. Tree pruning tools are required during the pruning process. However, in actual use, the applicant found that the tool, which uses hooks at the front of the cutting body to prune distant branches, does not effectively extend the pruning tool by adding this pruning structure. Therefore, it is still inconvenient for people to prune branches that are a little further away.

[0003] To address the aforementioned issues, a search revealed an existing patent (application number: CN202322094007.1) for a tree pruning tool. The patent describes a tool comprising a handle and an extension rod. A cutting body is fixedly connected to the front end of the handle, and a connecting seat is rotatably connected to the rear end of the handle via a pivot. A gear is located on the front side of the connecting seat. This invention, by providing a connecting seat on the rear side of the handle and equipping it with an extension rod, allows the tree pruning tool to be extended by screwing the front end of the extension rod onto the connecting seat. This facilitates pruning of distant branches. Rotating the screw moves the rack, causing the connecting seat to rotate around the pivot, allowing for flexible adjustment of the angle between the extension rod and the cutting body as needed. Furthermore, by unscrewing the fixing bolt from the handle, the connecting block can be removed from the connecting groove, allowing for individual replacement of damaged cutting bodies without discarding the entire pruning tool, thus reducing waste.

[0004] However, during use, if trees at a height are to be continuously pruned, the staff needs to keep lifting the cutting body and pulling it to cut. Without a corresponding support structure to support the cutting body, the staff will experience arm pain and waste physical strength during the process of lifting and cutting, which will cause damage to their health and affect the efficiency of subsequent tree pruning. Utility Model Content

[0005] This invention solves the technical problems in the background art mentioned above and provides a portable tree trimming tool.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0007] A portable tree trimming tool, comprising:

[0008] A cutting blade, used to cut down trees at high places;

[0009] The support assembly comprises a handle for holding and driving the cutting knife to cut the tree;

[0010] The pulling assembly comprises a limiting strip for limiting the handle when it is pulled;

[0011] The adjusting assembly comprises an extension rod sliding in the handle for installing the cutting knife and adjusting the height of the cutting knife.

[0012] Preferably, the top of the cutting knife is fixed with an upper limiting plate for limiting the cutting knife, the bottom of the cutting knife is fixed with a lower limiting plate for limiting the cutting knife, the top of the extension rod is fixed with a connecting head for inserting the cutting knife, and the cutting knife is slidingly connected with the connecting head through a bolt-nut set for installing the cutting knife.

[0013] Preferably, the support assembly further comprises:

[0014] A connecting ring sleeved on the handle for allowing the handle to reciprocally slide on the connecting ring;

[0015] An installation rod rotationally connected to the bottom of the connecting ring;

[0016] Support rods fixed to both ends of the installation rod;

[0017] A stepping plate fixed to one end of the support rod away from the installation rod for supporting the connecting ring;

[0018] A gear fixed to the installation rod;

[0019] A clamping plate engaged with the gear for limiting the gear and the installation rod;

[0020] A pulling handle fixed to the top of the clamping plate for pulling the clamping plate;

[0021] A first spring sleeved on the pulling handle for pushing the clamping plate to engage with the gear to limit the gear.

[0022] Preferably, the connecting ring is located at the middle of the handle, the pulling handle is slidingly connected with the connecting ring, one end of the first spring is fixed above the clamping plate, and the other end of the first spring is fixed to the bottom of the connecting ring.

[0023] Preferably, the pulling assembly further comprises:

[0024] A top limiting block fixed to the handle for limiting the connecting ring;

[0025] A bottom limiting block fixed to the handle for limiting the connecting ring;

[0026] A protective sleeve fixed to the bottom of the handle for enhancing the friction when holding the handle and protecting the hands of the worker.

[0027] Preferably, the connecting ring slides on the limiting strip, two ends of the limiting strip are fixedly connected to the top limiting block and the bottom limiting block respectively, the top limiting block is located above the bottom limiting block, and the protective sleeve is located below the bottom limiting block.

[0028] Preferably, the adjusting assembly further comprises:

[0029] The pressing block is slid through the extension rod for adjusting the height of the extension rod;

[0030] The limiting rod is fixedly connected through the pressing block for limiting the pressing block;

[0031] The sliding groove is arranged in the extension rod for mounting the pressing block;

[0032] The bottom positioning groove is arranged on the handle for inserting and limiting the pressing block;

[0033] The adjusting positioning groove is arranged on the handle for inserting and adjusting the height of the extension rod;

[0034] The second spring is fixedly connected to the pressing block for supporting the pressing block through the bottom positioning groove and the adjusting positioning groove.

[0035] Preferably, the limiting rod slides in the sliding groove, one end of the second spring is fixedly connected in the handle, the bottom positioning groove is located between the bottom limiting block and the protective sleeve, and the adjusting positioning groove is provided with three groups and is located above the top limiting block.

[0036] With the above structure, the utility model has the following advantages:

[0037] 1. By arranging the supporting assembly, the staff can avoid lifting heavy objects for a long time when pruning trees at high places, thereby saving the staff's physical strength, improving the work efficiency, and ensuring stability by stepping on the foot, and the limiting and protecting effect of the pulling assembly can be achieved when pruning trees, which effectively reduces physical exertion.

[0038] 2. By arranging the adjusting assembly, the height of the cutting knife can be conveniently adjusted to adapt to the tree pruning needs of different heights, the meshing design of the gear and the clamping plate, and the pushing effect of the first spring ensure the stable sliding of the connecting ring on the mounting rod, avoid accidental slipping, and still have a certain adjusting distance, which can fine-tune the angle while pruning, and facilitate pruning.

[0039] 3. The cutting knife and the connecting head are connected through the bolt-nut assembly, so that the operation is simple and quick when the cutting knife needs to be replaced or maintained.

[0040] The above summary is intended to illustrate the present application and is not intended to be limiting thereof. Further aspects, embodiments and features of the present application will become apparent from the detailed description referred to above and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only 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.

[0042] Figure 1 is a structural schematic diagram of a portable tree pruning tool of the present application;

[0043] Figure 2 is a partial structure explosion of the portable tree pruning tool of the present application Figure 1 ;

[0044] Figure 3 is a partial structure explosion of the portable tree pruning tool of the present application Figure 2 ;

[0045] Figure 4 is an enlarged view of A in the present application Figure 1 ;

[0046] Figure 5 is an enlarged view of B in the present application Figure 3 .

[0047] As shown in the drawings: 1, cutting knife; 201, handle; 202, connecting ring; 203, mounting rod; 204, support rod; 205, stepping plate; 206, gear; 207, clamping plate; 208, pull handle; 209, first spring; 301, limiting strip; 302, top limiting block; 303, bottom limiting block; 304, protective sleeve; 401, extension rod; 402, pressing block; 403, limiting rod; 404, sliding groove; 405, bottom positioning groove; 406, adjusting positioning groove; 407, second spring; 501, upper baffle; 502, lower baffle; 503, connecting head; 504, bolt and nut assembly. DETAILED DESCRIPTION

[0048] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explanation, and are not to be understood as limiting the present application.

[0049] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] The utility model will be explained in further detail below in combination with the full text:

[0051] Embodiment 1:

[0052] In combination with the drawings, Figures 1 to 5 The embodiment provides a portable tree pruning tool, which comprises a cutting knife 1 for cutting high trees, an upper baffle 501 for limiting the cutting knife 1 is fixed to the top of the cutting knife 1, a lower baffle 502 for limiting the cutting knife 1 is fixed to the bottom of the cutting knife 1, a connecting head 503 for inserting the cutting knife 1 is fixed to the top of the extension rod 401, and a bolt and nut assembly 504 for installing the cutting knife 1 is in sliding connection with the connecting head 503.

[0053] In order to support the cutting knife 1 when cutting high trees and make pruning trees more labor-saving, the support assembly comprises a handle 201 for holding and driving the cutting knife 1 to reciprocate to cut trees.

[0054] As a preferred embodiment, the support assembly further comprises a connecting ring 202 sleeved on the handle 201 for enabling the handle 201 to reciprocate on the connecting ring 202, a mounting rod 203 rotationally connected to the bottom of the connecting ring 202, a support rod 204 fixed to both ends of the mounting rod 203, a stepping plate 205 fixed to one end of the support rod 204 away from the mounting rod 203 for supporting the connecting ring 202, a gear 206 fixed to the mounting rod 203, a clamping plate 207 engaged with the gear 206 for limiting the gear 206 and the mounting rod 203, a pull handle 208 fixed to the top of the clamping plate 207 for pulling the clamping plate 207, and a first spring 209 sleeved on the pull handle 208 for pushing the clamping plate 207 to engage with the gear 206.

[0055] As a preferred embodiment, the connecting ring 202 is located in the middle of the handle 201, the pull handle 208 is connected to the connecting ring 202 through sliding, one end of the first spring 209 is fixed to the top of the clamping plate 207, and the other end of the first spring 209 is fixed to the bottom of the connecting ring 202.

[0056] It should be noted that the stepping plate 205 needs to be attached to the ground by the staff stepping on it with his feet to ensure stability. In the initial state, the first spring 209 pushes the clamping plate 207 to insert into the gear 206. After the clamping plate 207 is inserted into the gear 206, there is still a certain activity interval to allow the connecting ring 202 to adjust the angle in a small range. The end of the clamping plate 207 close to the gear 206 is triangular, and the length of the stepping plate 205 is greater than the diameter of the handle 201.

[0057] Embodiment 2:

[0058] On the basis of embodiment 1, in order to facilitate the pulling of the cutting knife 1 to trim the trees at a high place, a pulling assembly is arranged. The pulling assembly includes a limiting strip 301 for limiting when the handle 201 is pulled.

[0059] As a preferred embodiment, the pulling assembly further includes: a top limiting block 302 fixed to the handle 201 for limiting the connecting ring 202; a bottom limiting block 303 fixed to the handle 201 for limiting the connecting ring 202; and a protective sleeve 304 fixed to the bottom of the handle 201 for enhancing the friction when holding the handle 201 and protecting the hands of the staff.

[0060] As a preferred embodiment, the connecting ring 202 slides on the limiting strip 301, the two ends of the limiting strip 301 are respectively fixed to the top limiting block 302 and the bottom limiting block 303, the top limiting block 302 is located above the bottom limiting block 303, and the protective sleeve 304 is located below the bottom limiting block 303.

[0061] It should be noted that the distance between the top limiting block 302 and the bottom limiting block 303 is consistent with the distance between the upper baffle 501 and the lower baffle 502. The material of the protective sleeve 304 includes but is not limited to rubber material. Holding the protective sleeve 304 and pulling the handle 201 to slide on the connecting ring 202, under the action of the limiting strip 301, the handle 201 can only reciprocate and cannot rotate. When the supporting rod 204 is perpendicular to the ground, there is a certain gap between the supporting rod 204 and the bottom limiting block 303.

[0062] Embodiment 3:

[0063] On the basis of embodiment 1 and embodiment 2, in order to facilitate the adjustment of the height of the cutting knife 1, an adjusting assembly is arranged. The adjusting assembly includes an extension rod 401 sliding in the handle 201 for installing the cutting knife 1 and adjusting the height of the cutting knife 1.

[0064] As a preferred embodiment, the adjusting assembly further comprises: a pressing block 402 slidingly penetrating the extension rod 401 for adjusting the height of the extension rod 401; a limiting rod 403 fixedly penetrating the pressing block 402 for limiting the pressing block 402; a sliding groove 404 arranged in the extension rod 401 for installing the pressing block 402; a bottom positioning groove 405 arranged on the handle 201 for inserting and limiting the pressing block 402; an adjusting positioning groove 406 arranged on the handle 201 for inserting and adjusting the height of the extension rod 401; and a second spring 407 fixedly connected to the pressing block 402 for supporting the pressing block 402 penetrating the bottom positioning groove 405 and the adjusting positioning groove 406.

[0065] As a preferred embodiment, the limiting rod 403 slides in the sliding groove 404, one end of the second spring 407 is fixedly connected to the handle 201, the bottom positioning groove 405 is located between the bottom limiting block 303 and the protective sleeve 304, and the adjusting positioning groove 406 is provided with three groups and located above the top limiting block 302.

[0066] It should be noted that one end of the pressing block 402 is cylindrical, the end of the pressing block 402 away from the limiting rod 403 is hemispherical, the limiting rod 403 is located close to the second spring 407, and when the limiting rod 403 is located at the outermost side of the sliding groove 404, the pressing block 402 completely penetrates the bottom positioning groove 405 and the adjusting positioning groove 406 and the hemispherical shape is located outside the handle 201.

[0067] The operation steps are that the worker carries the device to the position of the high tree needing pruning, then pushes the pressing block 402 to drive the limiting rod 403 to slide in the sliding groove 404 and compress the second spring 407, until the pressing block 402 is withdrawn into the extension rod 401, then the extension rod 401 is pulled to move upwards, at this time the extension rod 401 can be rotated to make the pressing block 402 not be positioned on the horizontal line of the bottom positioning groove 405 and the adjusting positioning groove 406, until the extension rod 401 is moved to the height of the suitable adjusting positioning groove 406, the extension rod 401 is rotated to reset, the pressing block 402 is pushed out to penetrate the adjusting positioning groove 406 under the action of the second spring 407, then the extension rod 401 is fixed, then the pedal 205 is placed on the ground and stepped on by the foot, then the pull handle 208 is pulled to drive the clamping plate 207 to move upwards and compress the first spring 209, at this time the worker holds the protective sleeve 304 and can drive the connecting ring 202 to rotate on the mounting rod 203, until the cutting knife 1 is attached to the tree branch, then the pull handle 208 is released, the clamping plate 207 is engaged with the gear 206 under the action of the first spring 209, then the mounting rod 203 and the connecting ring 202 can be limited, finally the worker holds the protective sleeve 304 to pull the handle 201 and drive the cutting knife 1 to reciprocate through the extension rod 401, at this time the limiting strip 301 reciprocates on the connecting ring 202, then the tree can be pruned, when the cutting knife 1 needs to be replaced or maintained, only the two groups of bolt and nut assemblies 504 are taken off from the cutting knife 1 and the connecting head 503, then the cutting knife 1 can be pulled out of the connecting head 503.

[0068] The above describes the utility model and its implementation mode, which is not limited, and the shown in the full text is only one of the implementation modes of the utility model, and the actual structure is not limited. In general, if the ordinary skilled person in the art is inspired, without departing from the creative purpose of the utility model, without creative design, the similar structure mode and the embodiment of the technical scheme should belong to the protection scope of the utility model.

Claims

1. A portable tree pruning tool, characterised in that: The utility model relates to a cutting knife (1) for cutting high trees, a support assembly including a handle (201) for holding and driving the cutting knife (1) to cut trees back and forth, a pulling assembly including a limiting strip (301) for limiting when the handle (201) is pulled, and an adjusting assembly including an extension rod (401) sliding in the handle (201) for installing and adjusting the height of the cutting knife (1). The top of the cutting knife (1) is fixedly connected with an upper baffle (501) for limiting the cutting knife (1), the bottom of the cutting knife (1) is fixedly connected with a lower baffle (502) for limiting the cutting knife (1), the top of the extension rod (401) is fixedly connected with a connecting head (503) for inserting the cutting knife (1), and the cutting knife (1) and the connecting head (503) are connected with a bolt and nut assembly (504) for installing the cutting knife (1) through sliding connection. The support assembly further includes a connecting ring (202) sleeved on the handle (201) for enabling the handle (201) to slide back and forth on the connecting ring (202), a mounting rod (203) rotationally connected to the bottom of the connecting ring (202), a support rod (204) fixedly connected to both ends of the mounting rod (203), a stepping plate (205) fixedly connected to one end of the support rod (204) away from the mounting rod (203) for supporting the connecting ring (202), a gear (206) fixedly connected to the mounting rod (203), a clamping plate (207) engaged with the gear (206) for limiting the gear (206) and the mounting rod (203), a pulling handle (208) fixedly connected to the top of the clamping plate (207) for pulling the clamping plate (207), and a first spring (209) sleeved on the pulling handle (208) for pushing the clamping plate (207) to engage with the gear (206) to limit the gear (206). The connecting ring (202) is located in the middle of the handle (201), the pulling handle (208) is connected to the connecting ring (202) through sliding connection, one end of the first spring (209) is fixedly connected above the clamping plate (207), and the other end of the first spring (209) is fixedly connected to the bottom of the connecting ring (202). The pulling assembly further includes a top limiting block (302) fixedly connected to the handle (201) for limiting the connecting ring (202), a bottom limiting block (303) fixedly connected to the handle (201) for limiting the connecting ring (202), and a protective sleeve (304) fixedly connected to the bottom of the handle (201) for enhancing the friction when the handle (201) is held and protecting the hands of the worker.

2. A portable tree pruning tool according to claim 1, wherein: The connecting ring (202) slides on the limiting strip (301), both ends of the limiting strip (301) are fixedly connected to the top limiting block (302) and the bottom limiting block (303) respectively, the top limiting block (302) is located above the bottom limiting block (303), and the protective sleeve (304) is located below the bottom limiting block (303).

3. A portable tree pruning tool according to claim 2, wherein: The adjusting assembly further includes ​ ​ ​ ​ ​ ​ ​ ​ 4. A portable tree pruning tool according to claim 3, wherein: ​ 5. A portable tree pruning tool according to claim 4, wherein: ​ ​ ​ ​ 6. A portable tree pruning tool according to claim 5, wherein: ​ 7. A portable tree pruning tool according to claim 6 wherein: ​ Pressing block (402), sliding through the extension rod (401) for adjusting the height of the extension rod (401); Limiting rod (403), fixedly connected and penetrating through the pressing block (402) for limiting the pressing block (402); Slide groove (404), arranged in the extension rod (401) for installing the pressing block (402); Bottom positioning groove (405), arranged on the handle (201) for inserting and limiting the pressing block (402); Adjusting positioning groove (406), arranged on the handle (201) for inserting the pressing block (402) and adjusting the height of the extension rod (401); Second spring (407), fixedly connected to the pressing block (402) for supporting the pressing block (402) penetrating through the bottom positioning groove (405) and the adjusting positioning groove (406).

8. A portable tree pruning tool according to claim 7, wherein: The limiting rod (403) slides in the slide groove (404), one end of the second spring (407) is fixedly connected in the handle (201), the bottom positioning groove (405) is located between the bottom limiting block (303) and the protective sleeve (304), and the adjusting positioning groove (406) is provided with three groups and located above the top limiting block (302).

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