A tree pruning device

By using a pressing structure of the gripping column and the handle groove column, and an adjustable telescopic abutment screw, the low efficiency and complex operation of existing tree pruning devices when pruning thick branches are solved, thus improving flexibility and comfort.

CN224460701UActive Publication Date: 2026-07-07罗飞 +3

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
罗飞
Filing Date
2025-06-19
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing tree pruning devices are inefficient and labor-intensive when pruning thick branches, and the small saw blades are complex and inconvenient to operate.

Method used

The design employs a pressing structure between the gripping post and the handle groove post, combined with a telescopic adjustable abutment screw and an elastic limit block, to achieve displacement adjustment of the sliding plate. This, along with the engagement of the arc blade plate and the convex blade plate, enables quick and convenient trimming.

Benefits of technology

It improves the flexibility and comfort of tree pruning devices, especially the efficiency of pruning thick branches, avoids accidental injury and elastic fatigue, and reduces the difficulty of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a tree pruning device, belonging to the field of pruning technology. It includes a handle groove post, with an arc-shaped blade plate fixedly connected to one end. A convex blade plate is provided on one side of the arc-shaped blade plate, and a sliding sleeve plate is fixedly connected to one side of the convex blade plate. The sliding sleeve plate is fitted onto the outside of the handle groove post and slides to fit, with a limiting block inserted therein. A spring is provided between the limiting block and the handle groove post, and a gripping column is hinged to one side of the handle groove post, capable of adjusting the sliding sleeve plate's height by pressing. This application utilizes a press-type structure with a hinge between the gripping column and the handle groove post, allowing the gripping column to be pressed with both hands, pushing the sliding sleeve plate to engage the convex blade plate and the arc-shaped blade plate, achieving quick pruning of branches and ensuring the flexibility of the device's pruning use. Furthermore, the concave design of the arc-shaped blade plate allows it to be hooked onto the branch to be pruned, improving the comfort of pruning.
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Description

Technical Field

[0001] This application relates to the field of pruning technology, and more specifically, to a tree pruning device. Background Technology

[0002] Landscape architecture primarily aims to create a safe, comfortable, healthy, and efficient living environment for humans. However, the continuous growth of trees can also have many impacts on the interior of the landscape, thus requiring regular pruning of spherical trees within the landscape.

[0003] The prior art publication (announcement) document with the number CN217183949U provides a tree pruning device. In this related technology, the second blade is rotated along the main shaft so that the first blade and the second blade clamp the tree trunk. The tree trunk is then sawed thin by sliding a small saw along the second blade and then cut off by the blade edge.

[0004] Although the existing technical solutions described above can achieve the relevant beneficial effects through the existing technical structure, they still have the following drawbacks: when the tree pruning device is in use, it has a large number of small saw blades and only prunes by closing them. When sawing thicker branches, it is not only laborious but also inefficient, wasting manpower and resources.

[0005] In view of this, we propose a tree pruning device. Utility Model Content

[0006] To address the problems mentioned in the background art, this application provides a tree pruning device.

[0007] The tree pruning device provided in this application adopts the following technical solution:

[0008] A tree pruning device includes: a handle groove post, an arc blade plate fixedly connected to one end of the handle groove post, a convex blade plate that fits onto one side of the arc blade plate, a sliding sleeve plate fixedly connected to one side of the convex blade plate, the sliding sleeve plate being slidably fitted onto the outside of the handle groove post and having a limiting block inserted therein, a spring being provided between the limiting block and the handle groove post, and a gripping column that can be adjusted by pressing the sliding sleeve plate is hinged to one side of the handle groove post.

[0009] By adopting the above technical solution, the press-type structure with the hinge between the gripping column and the handle groove column allows the gripping column to be pressed by both hands, pushing the sliding plate to engage the convex blade plate and the arc blade plate, thus achieving quick pruning of branches and ensuring the flexibility of the device in pruning. In addition, the concave design of the arc blade plate allows it to be hooked with the branch to be pruned, improving the comfort of pruning.

[0010] As an optional solution to the technical solution of this application, one end of the grip groove is provided with a through screw hole groove, and an adjustable abutment screw is threaded into the through screw hole groove. One end of the abutment screw is embedded with a ball that can abut against and limit the limit block.

[0011] By adopting the above technical solution, the adjustable abutment screw can be used to push the limiting block to drive the sliding sleeve plate to adjust its displacement, thereby achieving the engagement between the convex blade plate and the arc blade plate on one side of the sliding sleeve plate, ensuring the convenience of the device for cutting excessively thick branches.

[0012] As an optional solution to the technical solution in this application, a U-shaped anti-damage frame is elastically hinged to one side of the sliding plate.

[0013] By adopting the above technical solution, the U-shaped anti-injury frame can block the openings of the convex and arc blades, thus preventing accidental injury at the openings.

[0014] As an optional solution to the technical solution of this application, the limiting plug is configured in a convex shape, and the limiting plug configured in a convex shape has an overload groove for placing the spring.

[0015] By adopting the above technical solution, the limiting plug with a convex structure can ensure that the limiting plug can make stable extrusion contact with the gripping column, and the overload groove for placing the spring can protect the extruded spring from excessive compression, avoiding excessive compression of the spring and causing elastic fatigue, which would affect the performance.

[0016] As an optional solution to the technical solution of this application, a groove is provided at one end of the gripping column, and an adaptive cam is rotatably connected in the groove.

[0017] By adopting the above technical solution, the rolling friction resistance between the gripping column and the limiting block when the gripping column squeezes the sliding sleeve plate can be reduced by using the rotating connection of the adapting cam in the groove of the gripping column, making the displacement adjustment of the sliding sleeve plate smoother.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. This application utilizes a press-type structure with a hinge between the gripping column and the handle groove column, allowing the gripping column to be pressed with both hands, pushing the sliding plate to engage the convex blade plate and the arc blade plate, thereby achieving quick pruning of branches and ensuring the flexibility of the device in pruning use. Furthermore, the concave design of the arc blade plate allows it to be hooked onto the branch to be pruned, improving the comfort of pruning use.

[0020] 2. This application utilizes a telescopically adjustable abutment screw to push a limiting insert block to adjust the displacement of the sliding sleeve plate, thereby achieving the engagement between the convex blade plate and the arc blade plate on one side of the sliding sleeve plate, ensuring the ease of use of the device for cutting excessively thick branches. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the left side of the overall structure of the tree pruning device of this application;

[0022] Figure 2 This is a schematic diagram of the overall structure of the tree pruning device of this application on the right side;

[0023] Figure 3 This is a partial structural diagram of the tree pruning device of this application;

[0024] Figure 4 This is a cross-sectional schematic diagram of the handle groove structure of the tree pruning device of this application;

[0025] The following are the labels in the diagram: 1. Grip groove post; 2. Arc blade plate; 3. Convex blade plate; 4. Sliding sleeve plate; 5. Limiting insert; 6. Spring component; 7. Grip pressure post; 11. Abutment screw; 41. Anti-injury frame; 71. Adaptive cam. Detailed Implementation

[0026] The present application will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figure 1-4 The tree pruning device described in this application includes: a handle groove post 1, an arc blade plate 2 fixedly connected to one end of the handle groove post 1, a convex blade plate 3 that fits to the arc blade plate 2 on one side, a sliding sleeve plate 4 fixedly connected to one side of the convex blade plate 3, the sliding sleeve plate 4 being sleeved on the outside of the handle groove post 1 and slidably adapted, and a limiting block 5 being inserted therein, a spring member 6 being provided between the limiting block 5 and the handle groove post 1, and a gripping pressure post 7 that can be adjusted by pressing the sliding sleeve plate 4 is hinged to one side of the handle groove post 1, a groove is provided at one end of the gripping pressure post 7, and an adaptive cam 71 is rotatably connected in the groove.

[0028] This tree pruning device utilizes a press-type structure with a hinge between the gripping column 7 and the handle groove column 1, allowing the gripping column 7 to be pressed with both hands. This pushes the sliding plate 4, causing the convex blade plate 3 to engage with the arc blade plate 2, enabling quick pruning of branches and ensuring the flexibility of the device's pruning use. Furthermore, the concave design of the arc blade plate 2 allows it to be hooked onto the branch to be pruned, improving the comfort of pruning. The rotating connection of the cam 71 within the groove of the gripping column 7 reduces the rolling friction resistance between the gripping column 7 and the limiting block 5 when pressing the sliding plate 4, making the displacement adjustment of the sliding plate 4 smoother.

[0029] Reference Figure 4 and Figure 1 In the tree pruning device described in this application embodiment, one end of the handle groove post 1 is provided with a through screw hole groove, and an adjustable abutment screw 11 is threaded in the through screw hole groove. One end of the abutment screw 11 is embedded with a ball that can abut against and limit the limit block 5.

[0030] This tree pruning device uses a telescopically adjustable abutment screw 11 to push a limiting plug 5 to move the sliding sleeve plate 4, thereby achieving the engagement between the convex blade plate 3 and the arc blade plate 2 on one side of the sliding sleeve plate 4, ensuring the device's ease of use for pruning excessively thick branches.

[0031] Reference Figure 1 In the tree pruning device described in this application embodiment, a U-shaped anti-damage frame 41 is elastically hinged to one side of the sliding plate 4.

[0032] This tree pruning device, by using a U-shaped anti-injury frame 41, can block the openings of the convex blade plate 3 and the arc blade plate 2, thus preventing accidental injury at the openings.

[0033] Reference Figure 3 and Figure 1 In the tree pruning device described in this application embodiment, the limiting plug 5 is arranged in a convex shape, and the limiting plug 5, which is arranged in a convex shape, has an overload groove for placing the spring 6.

[0034] The tree pruning device utilizes a convex-shaped limiting block 5 to ensure stable compression contact between the limiting block 5 and the gripping column 7. It also features an overload groove for placing the spring 6, which protects the compressed spring 6 from excessive compression and prevents elastic fatigue caused by excessive compression, thus affecting the performance.

[0035] Working principle: When using this device to prune bonsai, the operator attaches the concave part of the arc blade plate 2 to the trunk to be pruned, and then manually presses the gripping column 7.

[0036] At this time, the gripping column 7, which is overturned by the force, rolls against the limiting block 5 under the action of the adapting cam 71, thereby pushing the sliding sleeve plate 4 to rise along the trajectory of the grip groove column 1 and compressing the spring 6 to store force.

[0037] The sliding plate 4 drives the convex blade plate 3 to fit against the arc blade plate 2 to cut the branches. When the gripping column 7 is released, the spring 6 returns to its original position and pushes the sliding plate 4 back to its original position.

[0038] When the branch is too thick, pull out the extension rod that is slidably connected inside the abutment screw 11, rotate the abutment screw 11 clockwise, and the abutment screw 11, which is threadedly connected to the handle groove post 1, pushes the limit plug 5 to drive the sliding sleeve plate 4 to squeeze the spring piece 6 to adjust the displacement, so as to realize the shearing action of the convex blade plate 3 fitting the arc blade plate 2.

Claims

1. A tree pruning device, characterized in that, include: A handle groove post (1) is provided. An arc blade plate (2) is fixedly connected to one end of the handle groove post (1). A convex blade plate (3) is provided on one side of the arc blade plate (2) and fits therewith. A sliding sleeve plate (4) is fixedly connected to one side of the convex blade plate (3). The sliding sleeve plate (4) is fitted on the outside of the handle groove post (1) and slides to fit. A limit block (5) is inserted. A spring (6) is provided between the limit block (5) and the handle groove post (1). A gripping column (7) that can squeeze the sliding sleeve plate (4) for height adjustment is hinged to one side of the handle groove post (1).

2. The tree pruning device according to claim 1, characterized in that: One end of the grip groove (1) is provided with a through screw hole groove, and a telescopically adjustable abutment screw (11) is threaded into the through screw hole groove. One end of the abutment screw (11) is embedded with a ball that can abut against and limit the limit block (5).

3. The tree pruning device according to claim 1, characterized in that: The sliding plate (4) is elastically hinged on one side with a U-shaped anti-damage frame (41).

4. The tree pruning device according to claim 1, characterized in that: The limiting plug (5) is configured in a convex shape, and the limiting plug (5) configured in a convex shape has an overload groove for placing the spring (6).

5. The tree pruning device according to claim 1, characterized in that: The gripping column (7) has a groove at one end, and a suitable cam (71) is rotatably connected in the groove.