A tool for winter maintenance of trees

Abstract

The utility model discloses a tool for tree winter maintenance belongs to tree maintenance equipment technical field. The tool includes walking frame, handle and down shovel skin mechanism, through the setting of down shovel skin mechanism, solved the problem of traditional tool up and down consistent resistance, reduce operating strength, be applicable to tree winter old skin shovel to remove maintenance operation.

Description

Technical Field

[0001] This utility model relates to the field of tree maintenance technology, specifically to a tool for winter tree maintenance. Background Technology

[0002] Scraping away old bark is a crucial step in winter tree maintenance. Its purpose is to remove insect eggs and pathogens hidden in the old, peeling bark, while also promoting bark renewal. Currently, old bark scraping mainly relies on manual tools (such as scrapers and wire brushes). Operators must hold the tools and move them up and down the trunk to complete the scraping operation, which has the following drawbacks:

[0003] Consistent resistance in both upward and downward movements: When the hand tool moves up and down, the scraper is always in contact with the bark. When moving upward, there is no need to scrape the bark, but there is still a large frictional resistance, which makes the operation laborious and inefficient.

[0004] Poor adaptability: There are differences in the diameter of the tree trunk (the diameter of the upper and lower sections of the same tree trunk may be different, and the diameter difference between different trees is even greater). Existing tools cannot adjust the contact state according to the diameter of the tree trunk, which can easily lead to unstable walking.

[0005] Unstable bark scraping results: When operating manually, it is difficult to control the pressure and angle of the scraper, which can easily lead to the problem of thin-barked trees being scratched and thick-barked trees not being scraped clean.

[0006] Therefore, there is a need for a tool for winter tree maintenance that can be adapted to different tree trunks and control the resistance of upward and downward movement. Utility Model Content

[0007] (I) Technical Issues

[0008] This utility model aims to at least partially solve one of the technical problems in the related art.

[0009] Therefore, the purpose of this utility model is to propose a tool for winter tree maintenance, which addresses the problems of existing manual bark scraping tools having high resistance in the up and down movement, poor adaptability, and laborious operation.

[0010] (II) Technical Content

[0011] To achieve the above objectives, this utility model proposes a tool for winter tree maintenance, including a walking frame, a handle, and a downward bark-scraping mechanism.

[0012] The walking frame is used to move up and down along the tree trunk;

[0013] The downward bark scraping mechanism is mounted on the walking frame. The scraper blade in the downward bark scraping mechanism is inclined downward and used to scrape off the old bark of the tree when it moves downward.

[0014] The handle is mounted on the walking frame.

[0015] When in use, the walking frame moves along the tree trunk by pulling the handle up and down, and the scraper is used to peel off and trim the old bark.

[0016] In addition, the tree winter maintenance tool proposed above according to this utility model may also have the following additional technical features:

[0017] Preferred technical solution 1: The walking frame includes a frame body and walking wheels installed at the upper and lower ends of the frame body, and walking is achieved by the walking wheels contacting the tree trunk.

[0018] Preferred technical solution 2: The downward scraping mechanism includes a U-shaped mounting frame, the opening of which faces outward and spans across the walking frame and is connected to the frame body through parallel sections on both sides;

[0019] The transverse section in the middle of the U-shaped mounting bracket is used to fix the scraper;

[0020] The U-shaped mounting bracket is installed at a downward angle on the frame.

[0021] Preferred technical solution 3: A rotating shaft is rotatably installed in the middle of the frame, and the ends of the two parallel sections of the U-shaped mounting bracket are respectively fixed to the two ends of the rotating shaft;

[0022] Furthermore, a limit stop is fixed on the frame near the top of the U-shaped mounting bracket. When the middle of the parallel section of the U-shaped mounting bracket rotates upward around the pivot axis, it contacts the limit stop to limit the upward swing angle of the U-shaped mounting bracket. Thus, when the scraper moves downward and receives resistance from the upward movement of the bark, the scraper will not flip to the upper side.

[0023] Meanwhile, an elastic element is connected between the frame body and the U-shaped mounting bracket at the lower part of the frame body, which is used to provide a thrust to push the U-shaped mounting bracket to move towards the limit stop;

[0024] As the walking frame moves upward, the tree trunk provides the force to push the scraper outward. At this time, under the action of the elastic element, the scraper can flip outward and leave the limit stop bar, avoiding large friction with the bark, so that the walking frame can move upward smoothly.

[0025] By using the U-shaped mounting bracket with an inclined setting and the cooperation of the limiting stop and the elastic element, the scraper can effectively scrape the skin when going down (due to the limiting stop and preventing it from flipping) and automatically avoid the scraper when going up (due to the elastic element yielding and reducing friction), thus solving the technical problem of "consistent resistance in both directions and large ineffective friction" in traditional tools.

[0026] Preferred technical solution four: Axles are rotatably mounted at both the front and rear ends of the frame, and a set of traveling wheels are mounted on the left and right sides of each axle;

[0027] The walking wheel is fixedly sleeved on a slidable wheel sleeve on the wheel axle. The wheel axle has multiple sets of insertion holes along its length. A set of pins passes through the holes on the fixed sleeve and is inserted into the corresponding set of insertion holes.

[0028] By changing the position of the insertion hole of the pin, the distance between the walking wheels can be adjusted according to the trunk diameter. At the same time, the depth of bark scraping by the scraper can also be adjusted.

[0029] Preferred technical solution five: The handle can adopt a telescopic handle rod structure.

[0030] Preferred technical solution six: The scraper can be either a straight blade or an arc-shaped blade.

[0031] (III) Technical Effects

[0032] The above structure gives this solution the following advantages:

[0033] 1. Achieve differentiated resistance control for upward and downward movement: Through the cooperation of U-shaped mounting bracket, limit stop bar and elastic element, the scraper is constrained by the limit stop bar to maintain an effective scraping posture when moving downward, and the scraper automatically flips to avoid the obstacle when moving upward, which greatly reduces upward resistance and reduces the physical consumption of the operator;

[0034] 2. Adaptable to tree trunks of different diameters: The walking wheels are connected to the axle via wheel sleeves, pins, and can be flexibly adjusted in spacing (10-60cm) to adapt to tree trunks of different thicknesses and diameter changes between the upper and lower sections of the same tree trunk, ensuring walking stability;

[0035] 3. Controllable bark scraping effect: The scraping depth can be adjusted by adjusting the distance between the walking wheels. With the choice of straight or curved scraper, it can adapt to different bark thicknesses (thin peeling bark, thick hard bark) and tree trunk surface morphology, avoiding damage to healthy bark or incomplete scraping. Attached Figure Description

[0036] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0038] Figure 2 This is the main view of this solution;

[0039] Figure 3 This is a schematic diagram of the walking frame structure of this solution;

[0040] Figure 4 This is a structural diagram of the U-shaped mounting bracket, rotating shaft, and scraper in this solution.

[0041] Among them, 1. walking frame, 11. frame body, 12. wheel axle, 13. wheel sleeve, 14. walking wheel, 15. insertion hole, 16. pin, 2. handle, 3. downward scraping mechanism, 31. U-shaped mounting bracket, 32. scraper, 33. rotating shaft, 34. bolt, 35. limit stop bar, 36. spring. Detailed Implementation

[0042] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0043] The following description, in conjunction with the accompanying drawings, describes a tool for winter tree maintenance according to an embodiment of this utility model.

[0044] Please see Figures 1-4 The tree winter maintenance tool of this utility model includes a walking frame 1, a handle 2 and a downward bark scraping mechanism 3.

[0045] The walking frame 1 includes a frame body 11 and axle 12. The frame body 11 is made of aluminum alloy (lightweight and high strength). The axle 12 is rotatably mounted on the upper and lower ends of the frame body 11. Walking wheels 14 (rubber material, 8cm in diameter) are installed on both the left and right sides of the axle 12.

[0046] The handle 2 is a single rod or a telescopic aluminum alloy rod (3cm in diameter) as in the prior art. Its top end is fixedly connected to the frame 11. The gripping end on the bottom side of the handle 2 is provided with a rubber anti-slip sleeve.

[0047] The downward scraping mechanism 3 includes a U-shaped mounting frame 31 and a scraper 32. The U-shaped mounting frame 31 is made of stainless steel and spans the frame body 11. A rotatable shaft 33 is installed through the middle of the frame body 11. The ends of the parallel sections on both sides of the U-shaped mounting frame 31 are welded and fixed to the two ends of the shaft 33. The transverse section in the middle of the U-shaped mounting frame 31 is connected to the scraper 32 by bolts 34 (the scraper 32 can be a straight blade or an arc blade; when an arc blade is selected, the radius of curvature is 15cm). The U-shaped mounting frame 31 is tilted downward as a whole (the tilt angle of the U-shaped mounting frame 31 is 30°-45°).

[0048] In one set of embodiments

[0049] Please see Figures 1-3A slidable wheel sleeve 13 is fitted on the axle 12, and a traveling wheel 14 is fixedly installed on the wheel sleeve 13. A set of insertion holes 15 are opened at intervals along the length direction of the axle 12, and corresponding holes are opened on the wheel sleeve 13. The pin 16 passes through the hole and is inserted into the insertion hole 15 to realize the positioning of the wheel sleeve 13.

[0050] If the depth of bark scraping needs to be adjusted, the distance between the walking wheels 14 can be increased or decreased (pull out the pin 16, adjust the distance between the two walking wheels 14 by sliding the wheel sleeve 13, and then insert the pin 16): if the old bark is thick, decrease the distance by 2cm, the scraper 32 will fit more tightly with the trunk, and the depth of bark scraping will increase; if the old bark is thin, increase the distance by 2cm, and the depth of bark scraping will decrease.

[0051] In one set of embodiments

[0052] Please see Figure 3 A limit stop bar 35 (a steel bar with a diameter of 2cm) is welded on the frame 11 near the top of the U-shaped mounting bracket 31. When the middle part of the two parallel sections of the U-shaped mounting bracket 31 touches the limit stop bar 35, the upward swing angle of the U-shaped mounting bracket 31 can be limited.

[0053] A spring 36 (elastic coefficient 5N / cm) is connected between the frame 11 located below the U-shaped mounting bracket 31 and the parallel section of the U-shaped mounting bracket 31. In its natural state, the spring 36 pushes the U-shaped mounting bracket 31 to fit against the limit stop bar 35.

[0054] When in use, the operator holds the handle 2 and places the walking wheel 14 against the surface of the tree trunk. When moving down: the U-shaped mounting frame 31 is pushed by the spring 36 to fit against the limit stop bar 35, and the scraper 32 cuts into the bark with the blade angled downwards. As the walking frame 1 moves down, the old bark is removed.

[0055] When moving upward: the tree trunk exerts an outward pushing force on the scraper 32, the U-shaped mounting bracket 31 rotates outward around the pivot 33 and compresses the spring 36, the scraper 32 detaches from the bark surface, reducing upward resistance.

[0056] During use, this solution requires daily maintenance of each component according to the established maintenance plan to ensure its working condition.

[0057] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tool for winter tree maintenance, characterized in that: It includes a walking frame (1), a handle (2), and a downward scraping mechanism (3); The walking frame (1) is used to walk up and down the tree trunk; The downward scraping mechanism (3) is mounted on the walking frame (1), and the blade (32) of the downward scraping mechanism (3) has its cutting edge tilted downward. The handle (2) is mounted on the walking frame (1); The walking frame (1) includes a frame (11) and walking wheels (14) installed at the upper and lower ends of the frame (11); The distance between the two sets of walking wheels (14) located at the same height is adjustable.

2. The tree winter maintenance tool according to claim 1, characterized in that: The downward shovel mechanism (3) includes a U-shaped mounting frame that spans the walking frame (1) and has parallel sections on both sides connected to the frame body (11). The scraper (32) is fixed in the middle transverse section of the U-shaped mounting bracket; The U-shaped mounting bracket is installed at a downward angle on the frame (11).

3. The tree winter maintenance tool according to claim 2, characterized in that: A rotating shaft (33) is rotatably installed through the middle of the frame (11), and the ends of the two parallel sections of the U-shaped mounting bracket are respectively fixed to the two ends of the rotating shaft (33); A limit stop bar (35) is fixed on the frame (11) near the top of the U-shaped mounting bracket. When the scraper (32) moves down to cut the bark, the U-shaped mounting bracket and the limit stop bar (35) come into contact. The frame (11) is located below the U-shaped mounting frame and is connected to the U-shaped mounting frame by an elastic element.

4. The tree winter maintenance tool according to any one of claims 1-3, characterized in that: The frame (11) is rotatably mounted with axles (12) at both the front and rear ends; The two sets of walking wheels (14) are located on the left and right sides of the wheel axle (12), respectively.

5. The tree winter maintenance tool according to claim 4, characterized in that: The axle (12) has multiple sets of insertion holes (15) along its length. A pin (16) is inserted through the hole on the wheel sleeve (13) of the walking wheel (14). The pin (16) is inserted into the corresponding insertion hole (15) to achieve positioning.

6. The tree winter maintenance tool according to claim 1, characterized in that: The scraper (32) is a straight blade or an arc-shaped blade.

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