Special girdling knife for fruit trees

Abstract

The utility model provides a special girdling knife for fruit trees, which relates to the technical field of fruit tree maintenance and comprises a branch, and a girdling mechanism is arranged outside the branch. The girdling mechanism comprises two knife rests, the two knife rests are arranged outside the branches, sawtooth knife grooves are formed in the inner walls of the two knife rests, two limiting plates are arranged above the two knife rests, the interiors of the two limiting plates are rotationally connected with positioning columns, the bottom ends of the two positioning columns are fixedly connected with the upper surfaces of the two knife rests correspondingly, and the two knife rests are fixedly connected with the upper surfaces of the two knife rests; one side face of each limiting plate is fixedly connected with a connecting plate, and the interiors of the two connecting plates are rotationally connected with sliding columns. According to the girdling knife special for the fruit trees, the knife rest and the sawtooth knife groove are limited to girdle subcutaneous xylem according to branches of different thicknesses, so that the problem of too shallow or too deep girdling is not prone to occurring during girdling of the fruit trees, the difficulty of girdling depth control over the branches of the fruit trees of different thicknesses is effectively reduced, and the girdling effect of the fruit trees is guaranteed; and the use convenience of the fruit tree girdling knife is improved.

Description

A special girdling knife for fruit trees Technical Field

[0001] This utility model relates to a fruit tree girdling knife, specifically a fruit tree-specific girdling knife, belonging to the field of fruit tree maintenance technology. Background Technology

[0002] Ringing of fruit trees refers to the practice of removing a certain width of bark around the branches and trunk of a fruit tree. It is a planting measure to promote flower bud differentiation and improve fruit quality. It is often used in fruit tree management. In order to increase the convenience of ringing, a ringing knife is usually used to ring the bark of the fruit tree.

[0003] Because the bark thickness varies among fruit tree branches of different thicknesses, shallow girdling can hinder nutrient transport and prevent flower bud differentiation, while excessive girdling can damage the woody parts of the tree, affecting its subsequent growth. Existing girdling tools rely on the operator's feel to judge the depth, making errors easy and resulting in girdling that is either too shallow or too deep, affecting the effectiveness and reducing the ease of use. Therefore, a specialized girdling tool for fruit trees is proposed. Summary of the Invention

[0004] This utility model proposes a special girdling knife for fruit trees to solve the problem that existing girdling knives are prone to girdling errors, resulting in shallow or deep girdling of fruit trees, which affects the girdling effect.

[0005] This utility model is achieved through the following technical solution: a special ring-cutting knife for fruit trees, including branches, and a ring-cutting mechanism is provided on the outside of the branches;

[0006] The girdling mechanism includes two blade holders, both of which are located outside the branch. The inner walls of both blade holders are provided with serrated grooves. Two limiting plates are located above each blade holder. Positioning pins are rotatably connected inside each limiting plate. The bottom ends of the positioning pins are fixedly connected to the upper surfaces of the two blade holders. Connecting plates are fixedly connected to one side of each limiting plate. Sliding pins are rotatably connected inside each connecting plate. Arc-shaped grooves are provided on the upper surfaces of both blade holders. The two sliding pins are slidably connected inside the arc-shaped grooves. Equally spaced graduated grooves are provided on the upper surfaces of both blade holders. Pointers are fixedly connected to the outer surfaces of the two sliding pins.

[0007] The ring-cutting mechanism is equipped with a locking component inside, and a disassembly and assembly component is provided on the left side of the ring-cutting mechanism.

[0008] Anti-detachment rings are fixedly connected to the outer surfaces of the two positioning posts, and the bottom surfaces of the two anti-detachment rings are in contact with the upper surfaces of the two limiting plates, respectively.

[0009] The outer surfaces of the two pointers are fixedly connected to limit rings, the inner walls of the two limit rings are fixedly connected to the outer surfaces of the two sliding columns, and the bottom surfaces of the two limit rings are in contact with the upper surfaces of the two tool holders.

[0010] The locking assembly includes two arc-shaped frames, the outer surfaces of which are fixedly connected to the inner walls of two arc-shaped grooves, and the inner walls of two sliding columns are slidably connected to the outer surfaces of the two arc-shaped frames. The upper surfaces of the two arc-shaped frames are provided with equidistant positioning holes. The interiors of the two connecting plates are threaded with positioning bolts. The bottom ends of the two positioning bolts penetrate the sliding columns and extend into the interior of one of the positioning holes. The two positioning bolts are threadedly connected to two of the positioning holes.

[0011] The assembly includes a mounting base, with both tool holders snapped into the interior of the mounting base. A handle is fixedly connected to the left side of the mounting base. Two snap-fit ​​brackets are fixedly connected to the inner wall of the mounting base, with the inner walls of the two snap-fit ​​brackets contacting the outer surfaces of the two tool holders respectively. Two fixing bolts are threaded into the interior of the mounting base, with the bottom ends of the two fixing bolts passing through the mounting base and the tool holders and extending to the bottom of the mounting base. The two fixing bolts are threadedly connected to the two tool holders respectively.

[0012] An anti-slip sleeve is fixedly connected to the outer surface of the grip, and anti-slip grooves are arranged at equal intervals on the outer surface of the anti-slip sleeve.

[0013] This utility model provides a special girdling knife for fruit trees, which has the following beneficial effects:

[0014] 1. This fruit tree girdling knife uses two V-shaped blade holders to directly hold branches. Manually rotating the blade holders in conjunction with the serrated blade groove allows for girdling of the fruit tree branches. A limiting plate restricts the depth of the blade holders and serrated blade grooves into the tree. Furthermore, a positioning post, along with a sliding post, slides within the arc-shaped groove, allowing adjustment of the limiting plate's angle. This, combined with the angle between the two blade holders, limits the cutting depth to the subcutaneous xylem based on the branch's thickness. This prevents girdling that is too shallow or too deep, effectively reducing the difficulty of controlling the girdling depth for branches of varying thicknesses, ensuring effective girdling, and increasing the ease of use of the fruit tree girdling knife.

[0015] 2. This fruit tree girdling knife has a locking component that can lock the position of the adjustable limit plate and sliding column, increasing the stability of the limit plate after adjustment. The disassembly and assembly component allows for easy disassembly and replacement of the knife holder, while also limiting the angle of the knife holder during installation, ensuring the accuracy of the knife holder installation and use, and further ensuring the quality of girdling of fruit tree branches. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the tree branch and knife holder structure of this utility model;

[0017] Figure 2 is a schematic diagram of the tool holder structure of this utility model;

[0018] Figure 3 is a cross-sectional view of the fixing base of this utility model;

[0019] Figure 4 is a schematic diagram of the structure of the connecting plate, sliding column and arc frame of this utility model after unfolding.

[0020] Explanation of reference numerals in the attached figures

[0021] 1. Tree branches;

[0022] 2. Ring cutting mechanism; 201. Tool holder; 202. Serrated cutter groove; 203. Limiting plate; 204. Positioning post; 205. Connecting plate; 206. Sliding post; 207. Arc groove; 208. Scale groove; 209. Pointer; 210. Anti-detachment ring; 211. Limiting ring;

[0023] 3. Locking assembly; 301. Arc-shaped frame; 302. Positioning hole; 303. Positioning bolt;

[0024] 4. Assembly / Disassembly Components; 401. Mounting Base; 402. Handle; 403. Clip-on Bracket; 404. Fixing Bolt; 405. Anti-slip Sleeve; 406. Anti-slip Groove. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0026] Please refer to Figures 1 to 4. This embodiment of the utility model provides a special girdling knife for fruit trees, including a branch 1, and a girdling mechanism 2 is provided on the outside of the branch 1;

[0027] The girdling mechanism 2 includes two blade holders 201, each with a thickness of less than or equal to two millimeters. Both blade holders 201 are located on the outside of the branch 1. The inner walls of both blade holders 201 are provided with serrated blade grooves 202. Two limiting plates 203 are provided above each blade holder 201. Positioning posts 204 are rotatably connected inside each of the two limiting plates 203. The bottom ends of the two positioning posts 204 are fixedly connected to the upper surfaces of the two blade holders 201, respectively. Anti-detachment rings 210 are fixedly connected to the outer surfaces of the two positioning posts 204. The bottom surfaces of the two anti-detachment rings 210 are in contact with the upper surfaces of the two limiting plates 203, respectively. The anti-detachment rings 210 can limit the position of the positioning posts 204 on the limiting plates 203, preventing the positioning posts 204 from becoming loose from the limiting plates 203, thus increasing the reliability of the positioning posts 204.

[0028] Please refer to Figures 2 and 3. A connecting plate 205 is fixedly connected to one side of each of the two limiting plates 203. A sliding column 206 is rotatably connected inside each of the two connecting plates 205. An arc-shaped groove 207 is formed on the upper surface of each of the two tool holders 201. The two sliding columns 206 are slidably connected inside the arc-shaped groove 207. Scale grooves 208 are evenly spaced on the upper surface of each of the two tool holders 201. A pointer 209 is fixedly connected to the outer surface of each of the two sliding columns 206. A limiting ring 211 is fixedly connected to the outer surface of each of the two pointers 209. The inner walls of the two limiting rings 211 are fixedly connected to the outer surfaces of the two sliding columns 206. The bottom surfaces of the two limiting rings 211 are in contact with the upper surfaces of the two tool holders 201. The limiting rings 211 can fix the pointers 209 and also restrict the position of the sliding column 206 inside the arc-shaped groove 207, increasing the stability of the sliding column 206 in use.

[0029] Please refer carefully to Figures 3 and 4. The ring-cutting mechanism 2 has a locking assembly 3 inside. The locking assembly 3 includes two arc-shaped frames 301. The outer surfaces of the two arc-shaped frames 301 are fixedly connected to the inner walls of two arc-shaped grooves 207, respectively. The inner walls of two sliding columns 206 are slidably connected to the outer surfaces of the two arc-shaped frames 301, respectively. The upper surfaces of the two arc-shaped frames 301 are respectively provided with equidistantly arranged positioning holes 302. Positioning bolts 303 are threaded into the interiors of both connecting plates 205. The bottom ends of the two positioning bolts 303 penetrate the sliding column 206 and extend into one of the positioning holes 302. The two positioning bolts 303 are respectively engaged with two of the positioning holes 302. The threaded connection allows the sliding column 206 to slide within the arc-shaped groove 207. The arc-shaped bracket 301 further restricts the position of the sliding column 206 within the arc-shaped groove 207, preventing it from becoming loose. After the sliding column 206, in conjunction with the connecting plate 205 and the positioning column 204, allows the limiting plate 203 to complete its angle adjustment, the positioning bolt 303 passes through the connecting plate 205 and the sliding column 206 and is inserted into the corresponding positioning hole 302. The positioning bolt 303 is then tightened. At this point, the position of the limiting plate 203 can be fixed by the arc-shaped bracket 301, the sliding column 206, and the connecting plate 205, increasing the stability of the limiting plate 203 after adjustment.

[0030] Please refer carefully to Figure 3. A disassembly / assembly assembly 4 is located on the left side of the girdling mechanism 2. The assembly includes a fixed base 401, with both tool holders 201 snapped into the interior of the fixed base 401. A handle 402 is fixedly connected to the left side of the fixed base 401. Two snap-fit ​​brackets 403 are fixedly connected to the inner wall of the fixed base 401, with the inner walls of the two snap-fit ​​brackets 403 contacting the outer surfaces of the two tool holders 201 respectively. Two fixing bolts 404 are threaded into the interior of the fixed base 401, with the bottom ends of both bolts 404 penetrating the fixed base 401 sequentially. 1. The tool holder 201 extends to the bottom of the fixed base 401. Two fixing bolts 404 are threadedly connected to the two tool holders 201 respectively. When the tool holder 201 and the sawtooth groove 202 are damaged and need to be replaced, simply unscrew the fixing bolts 404 to remove the tool holder 201 from the fixed base 401 for replacement. When installing a new tool holder 201, simply use the tool holder 201 with the snap-fit ​​bracket 403 to limit the position, so that the tool holders 201 maintain a suitable included angle of 70 degrees or 90 degrees. Finally, insert the fixing bolts 404 and tighten them.

[0031] Please refer to Figure 3. An anti-slip sleeve 405 is fixedly connected to the outer surface of the grip 402. The outer surface of the anti-slip sleeve 405 has anti-slip grooves 406 arranged at equal intervals. The anti-slip sleeve 405 and the anti-slip grooves 406 can increase the stability of the grip 402 and prevent relative sliding of the grip 402, thereby improving the grip stability of the grip 402.

[0032] When using this utility model: manually hold the handle 402, and the branch 1 can be directly clamped by the two V-shaped blade holders 201. Then, manually rotate the blade holders 201 to cooperate with the serrated blade groove 202 to complete the ring cutting of the fruit tree branch 1. The limiting plate 203 can limit the blade holders 201 and the serrated blade groove 202 to ring cutting into the subcutaneous xylem. The positioning post 204 cooperates with the sliding post 206 to slide inside the arc groove 207, which can adjust the angle of the limiting plate 203. When the sliding post 206 moves, it can drive the pointer 209 to move, and then cooperate with the scale groove 208 to more accurately know the depth of the blade holders 201 and the serrated blade groove 202 into the fruit tree branch 1.

[0033] This, combined with the angle between the two blade holders 201, limits the depth of the blade holder 201 and the serrated blade groove 202 into the fruit tree branch 1 according to the different thicknesses of the branches 1, making it less likely that the girdling is too shallow or too deep when girdling the fruit tree, effectively reducing the difficulty of controlling the girdling depth of branches of different thicknesses of the fruit tree, ensuring the girdling effect of the fruit tree, and increasing the ease of use of the fruit tree girdling knife.

[0034] When the sliding column 206 slides inside the arc groove 207, the arc frame 301 can further restrict the position of the sliding column 206 inside the arc groove 207, preventing the sliding column 206 from loosening inside the arc groove 207. Then, after the sliding column 206, together with the connecting plate 205 and the positioning column 204, allows the limiting plate 203 to complete the angle adjustment, the positioning bolt 303 passes through the connecting plate 205 and the sliding column 206 and is inserted into the corresponding positioning hole 302. The positioning bolt 303 is then tightened. At this time, the position of the limiting plate 203 can be fixed by the arc frame 301, the sliding column 206, and the connecting plate 205, increasing the stability of the limiting plate 203 after adjustment.

[0035] When the tool holder 201 and the serrated tool groove 202 are damaged and need to be replaced, simply unscrew the fixing bolt 404 to remove the tool holder 201 from the fixing base 401 for replacement. When installing a new tool holder 201, simply use the tool holder 201 with the snap-fit ​​bracket 403 to limit its position, so that the tool holder 201 can maintain a suitable installation angle. Finally, insert the fixing bolt 404 and tighten it.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A special girdling knife for fruit trees, comprising branches (1), characterized in that: A ring-cutting mechanism (2) is provided on the outside of the branch (1); the ring-cutting mechanism (2) includes two blade holders (201), both blade holders (201) are provided on the outside of the branch (1), and the inner walls of both blade holders (201) are provided with serrated blade grooves (202). Two limiting plates (203) are provided above the two blade holders (201), and positioning pins (204) are rotatably connected inside the two limiting plates (203). The bottom ends of the two positioning pins (204) are fixedly connected to the upper surfaces of the two blade holders (201), and one side of the two limiting plates (203) is fixedly connected to... The two connecting plates (205) are connected to a sliding column (206) which is rotatably connected inside. The upper surfaces of the two tool holders (201) are provided with arc grooves (207). The two sliding columns (206) are slidably connected inside the arc grooves (207). The upper surfaces of the two tool holders (201) are provided with equally spaced scale grooves (208). The outer surfaces of the two sliding columns (206) are fixedly connected with pointers (209). The ring cutting mechanism (2) is provided with a locking component (3). The left side of the ring cutting mechanism (2) is provided with a disassembly component (4).

2. The special girdling knife for fruit trees according to claim 1, characterized in that: The outer surfaces of the two positioning posts (204) are fixedly connected with anti-detachment rings (210), and the bottom surfaces of the two anti-detachment rings (210) are in contact with the upper surfaces of the two limiting plates (203).

3. The special girdling knife for fruit trees according to claim 1, characterized in that: The outer surfaces of the two pointers (209) are fixedly connected to limit rings (211), the inner walls of the two limit rings (211) are fixedly connected to the outer surfaces of the two sliding columns (206), and the bottom surfaces of the two limit rings (211) are in contact with the upper surfaces of the two tool holders (201).

4. The special girdling knife for fruit trees according to claim 1, characterized in that: The locking assembly (3) includes two arc-shaped frames (301), the outer surfaces of the two arc-shaped frames (301) are fixedly connected to the inner walls of the two arc-shaped grooves (207), the inner walls of the two sliding columns (206) are slidably connected to the outer surfaces of the two arc-shaped frames (301), the upper surfaces of the two arc-shaped frames (301) are respectively provided with equidistant positioning holes (302), the interiors of the two connecting plates (205) are threaded with positioning bolts (303), the bottom ends of the two positioning bolts (303) penetrate the sliding column (206) and extend into the interior of one of the positioning holes (302), and the two positioning bolts (303) are threadedly connected to the two positioning holes (302) respectively.

5. The special girdling knife for fruit trees according to claim 1, characterized in that: The assembly / disassembly assembly (4) includes a mounting base (401), and the two tool holders (201) are snapped into the interior of the mounting base (401). A handle (402) is fixedly connected to the left side of the mounting base (401). Two snap-fit ​​brackets (403) are fixedly connected to the inner wall of the mounting base (401). The inner walls of the two snap-fit ​​brackets (403) are respectively in contact with the outer surfaces of the two tool holders (201). Two fixing bolts (404) are threadedly connected to the interior of the mounting base (401). The bottom ends of the two fixing bolts (404) pass through the mounting base (401) and the tool holders (201) in sequence and extend to the bottom of the mounting base (401). The two fixing bolts (404) are respectively threadedly connected to the two tool holders (201).

6. A special girdling knife for fruit trees according to claim 5, characterized in that: The outer surface of the grip (402) is fixedly connected to an anti-slip sleeve (405), and the outer surface of the anti-slip sleeve (405) is provided with anti-slip grooves (406) arranged at equal intervals.

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