Portable labor-saving grafting knife

The portable grafting knife with adjustable blades addresses the inefficiencies of traditional single-blade tools by enabling precise, consistent cuts, enhancing grafting efficiency and success rates through reduced operation steps and adaptable design.

CN119699064APending Publication Date: 2025-03-28DALIAN MODERN AGRI PROD DEV SERVICE CENT (DALIAN ACAD OF AGRI SCI)
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Patent Information

Application Number
CN202311267069.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-28
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Traditional single-blade tools used in fruit tree grafting require multiple cuts to achieve a square shape, leading to irregular cuts, low grafting efficiency, and reduced success rates due to mismatched interfaces.

Method used

A portable grafting knife with two interchangeable blades connected via adjustable components, allowing for precise parallel alignment and adjustable spacing to ensure consistent cuts, reducing the number of cuts needed and improving fitment.

Benefits of technology

The solution enables efficient and precise cutting of grafts and stock, reducing operation steps, increasing grafting efficiency and success rates, and allowing for easy adaptation to varying diameters through adjustable components.

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Abstract

The invention discloses a portable labor-saving grafting knife, and relates to the technical field of grafting tools. Comprising a first knife handle and a second knife handle, the front ends of the first knife handle and the second knife handle are detachably connected with grafting blades, the two grafting blades are arranged in parallel, and the tail ends of the first knife handle and the second knife handle are connected through a fixing assembly. The portions, close to the grafting blade, of the first cutter handle and the second cutter handle are connected through an adjusting assembly. When the grafting knife is used for cutting a scion and a rootstock, the scion and the rootstock are transversely and vertically cut twice respectively, so that squares with completely consistent sizes and characters can be cut, the operation steps are reduced, the operation difficulty is reduced, and the grafting efficiency and the grafting survival rate are improved; the distance between the two grafting blades can be adjusted at any time through the adjusting assembly, the width can be adjusted at any time according to the thickness of the scion and the rootstock, and the applicability is high.
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Description

Technical Field

[0001] The invention relates to the technical field of grafting tools, in particular to a portable labor-saving grafting knife. Background Art

[0002] Grafting is an artificial propagation method in which a branch or bud of one plant is transplanted onto the stem or root of another plant, allowing the combined parts to grow into a complete plant. In the prior art, fruit tree grafting is commonly performed with a single blade, such as a small carving knife or a razor blade. In the bark bud grafting method, the xylem and phloem of the fruit tree need to be separated. When using a single blade to cut the scion and the rootstock, four cuts are required to remove the bark bud on the scion without the xylem. Four cuts are then made at a time, forming a square incision. Four cuts are then made on the rootstock, removing squares of uniform size and removing the phloem. Finally, the previously cut bark bud is attached to this square and fixed.

[0003] When using a traditional single knife, four cuts are required to cut into a square, and the cut shape may be irregular, resulting in the rootstock incision shape not being able to completely overlap with the grafted bud, requiring secondary shaping, which reduces the grafting efficiency. In addition, due to inconsistent interfaces, the grafting fit rate is low, which reduces the grafting survival rate. Summary of the Invention

[0004] The main purpose of the invention is to provide a portable labor-saving grafting knife to solve the technical problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A portable, labor-saving grafting knife comprises a first handle and a second handle. The front ends of the first handle and the second handle are detachably connected to grafting blades. The two grafting blades are arranged in parallel. The ends of the first handle and the second handle are connected by a fixing component. The parts of the first handle and the second handle near the grafting blades are connected by an adjusting component.

[0007] Furthermore, the first handle is a straight handle, and the second handle includes a fixing portion, a connecting portion and an adjusting portion. The fixing portion is attached to the end of the first handle and is connected through two groups of the fixing components. The adjusting portion is spaced apart from the portion of the first handle close to the grafting blade, and the two ends of the connecting portion are respectively connected to the fixing portion and the adjusting portion.

[0008] Furthermore, the fixing portion and the adjusting portion are arranged in parallel.

[0009] Furthermore, the fixing assembly includes a counter-tightening nut and a bolt, and the counter-tightening nut sequentially passes through the bolt holes on the fixing portion and the first shank and is connected to the bolt.

[0010] Furthermore, the adjustment assembly includes a scale bolt, a hexagonal nut and a knurled nut, the scale bolt passes through the bolt holes on the adjustment part and the first tool handle in sequence, the hexagonal nut is connected to the scale bolt and is tightly attached to the inner side surface of the adjustment part, and the knurled nut is connected to the scale bolt and is tightly attached to the outer side surface of the first tool handle.

[0011] Furthermore, the first knife handle is made of stainless steel, and the second knife handle is made of spring steel.

[0012] Furthermore, the front ends of the first handle and the adjusting portion are both provided with a blade mounting frame, the grafting blade is provided with a card slot, and the blade mounting frame is provided with a clamping portion that matches the card slot.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] When using the grafting knife of the present invention to cut the scion and the stock, the scion and the stock are cut twice horizontally and vertically respectively, so that squares with completely identical sizes and properties can be cut, which reduces the operation steps, reduces the operation difficulty, and improves the grafting efficiency and grafting survival rate;

[0015] The distance between the two grafting blades can be adjusted at any time through the adjustment component, and the width can be adjusted at any time according to the thickness of the scion and the rootstock, which has high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the present invention from another angle.

[0018] Figure 3 It is a schematic diagram of the decomposition structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the second knife handle structure of the present invention.

[0020] Among them, 1-first handle, 2-second handle, 21-fixing part, 22-connecting part, 23-adjusting part, 3-grafting blade, 4-fixing assembly, 41-tightening nut, 42-short bolt, 5-adjusting assembly, 51-scale bolt, 52-hexagonal nut, 53-knurled nut, 6-blade mounting frame, 7-slot. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0022] Combine Figures 1 to 4The present invention provides a portable labor-saving grafting knife, comprising a first handle 1 and a second handle 2. The front ends of the first handle 1 and the second handle 2 are detachably connected to the grafting blade 3. The two grafting blades 3 are arranged in parallel. The ends of the first handle 1 and the second handle 2 are connected by a fixing component 4, and the parts of the first handle 1 and the second handle 2 near the grafting blade 3 are connected by an adjusting component 5.

[0023] In this embodiment, the first knife handle 1 is made of stainless steel, and the second knife handle 2 is made of spring steel.

[0024] Preferably, the first handle 1 is a straight handle, and the second handle 2 includes a fixing part, a connecting part and an adjusting part. The fixing part is attached to the end of the first handle 1 and is connected through two groups of the fixing components 4. The adjusting part is spaced apart from the part of the first handle 1 close to the grafting blade 3, and the two ends of the connecting part are respectively connected to the fixing part and the adjusting part.

[0025] In this embodiment, the fixing portion and the adjusting portion are arranged in parallel. When the fixing portion is attached to the first handle 1, the adjusting portion is parallel to the first handle 1. At this time, the grafting blade 3 is mounted on the adjusting portion and the first handle 1, so that the two grafting blades 3 are parallel.

[0026] Preferably, the fixing assembly 4 includes a counter-nut 41 and a bolt. The counter-nut 41 sequentially passes through the bolt holes in the fixing portion and the first handle 1 and is connected to the bolt. When installing the ends of the two handles, first align the rear portion of the first handle 1 with the fixing portion of the second handle 2, then insert the two counter-nuts 41 into the bolt holes, and finally tighten the bolts onto the counter-nuts 41. In this embodiment, the bolt that cooperates with the counter-nut is a short bolt 42.

[0027] Preferably, the adjustment assembly 5 includes a scale bolt 51, a hexagonal nut 52 and a knurled nut 53, the scale bolt 51 passes through the bolt holes on the adjustment part and the first tool handle 1 in sequence, the hexagonal nut 52 is connected to the scale bolt 51 and is close to the inner side surface of the adjustment part, and the knurled nut 53 is connected to the scale bolt 51 and is close to the outer side surface of the first tool handle 1.

[0028] To install the front ends of the two handles, first screw the hexagonal nut 52 onto the graduated bolt 51. Then, insert the graduated bolt 51 through the adjustment portion of the second handle 2 and the bolt holes on the first handle 1. Then, screw the knurled nut 53 to the end of the graduated bolt 51, so that it fits against the outer surface of the first handle 1. Then, rotate the hexagonal nut 52 so that it fits against the inner side of the second handle 2, thus limiting the position of the second handle 2. The knurled nut 53 increases friction between it and the tightening tool, making it easier to operate.

[0029] When the distance between the two grafting blades 3 needs to be adjusted, the knurled nut 53 is rotated to make it move linearly on the scale bolt 51, so that the first handle 1 can be moved closer to or away from the second handle 2, thereby adjusting the distance between the two grafting blades 3.

[0030] Preferably, the front ends of the first handle 1 and the adjusting portion are both provided with a blade mounting frame 6 , the grafting blade 3 is provided with a card slot 7 , and the blade mounting frame 6 is provided with a clamping portion that matches the card slot 7 .

[0031] The grafting knife of the present invention is used in the skin bud grafting process, and the specific steps are as follows:

[0032] The first step is to select vigorous buds on the scion variety;

[0033] The second step is to use a grafting knife to make two cuts horizontally and vertically to obtain a fixed-shape, wood-free bud. At the same time, make two cuts horizontally and vertically at the appropriate position of the rootstock to be grafted, forming an incision with the same shape and size as the bud.

[0034] The third step is to place the cut buds close to the incision on the rootstock that is the same shape as the scion buds;

[0035] The fourth step is to make the scion bud fit completely with the rootstock cut by binding.

[0036] By adopting the labor-saving grafting knife of the present invention, only two cuts are needed to cut the graft bud without wood part on the scion. Similarly, only two cuts are needed to cut the incision of the stock, which saves 50% of labor. The operation is simple, the technique is easy to master, and the grafting efficiency is improved. Moreover, the graft bud cut by the grafting knife is completely consistent with the incision shape of the stock, which improves the grafting fit and greatly improves the grafting survival rate. Moreover, the distance between the two grafting blades 3 can be adjusted by the adjustment component 5, and the incision width can be adjusted at any time according to the thickness of the scion and the stock. The grafting knife is convenient and fast and has high applicability.

[0037] Secondly, the grafting method applicable to the grafting knife of the present invention is the skin bud grafting method. The skin bud grafting method is usually performed in mid-August, avoiding the two busy farming seasons of autumn and spring. On the one hand, the success rate of breeding high-quality seedlings is improved, and on the other hand, the working time of grafters is staggered, thereby reducing labor costs.

[0038] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A portable labor-saving grafting knife, characterized in that: The invention comprises a first knife handle and a second knife handle, wherein the front ends of the first knife handle and the second knife handle are detachably connected to the grafting blades, the two grafting blades are arranged in parallel, the ends of the first knife handle and the second knife handle are connected by a fixing component, and the parts of the first knife handle and the second knife handle close to the grafting blades are connected by an adjusting component.

2. A portable labor-saving grafting knife as claimed in claim 1, characterized in that: The first knife handle is a straight knife handle, and the second knife handle includes a fixing part, a connecting part and an adjusting part. The fixing part is attached to the end of the first knife handle and is connected through two groups of the fixing components. The adjusting part is spaced apart from the part of the first knife handle close to the grafting blade, and the two ends of the connecting part are respectively connected to the fixing part and the adjusting part.

3. A portable labor-saving grafting knife as claimed in claim 2, characterized in that: The fixing portion and the adjusting portion are arranged in parallel.

4. A portable labor-saving grafting knife as claimed in claim 2 or 3, characterized in that: The fixing assembly includes a counter-tightening nut and a bolt. The counter-tightening nut sequentially passes through the bolt holes on the fixing portion and the first handle and is connected to the bolt.

5. A portable labor-saving grafting knife as claimed in claim 2 or 3, characterized in that: The adjustment assembly includes a graduated bolt, a hexagonal nut and a knurled nut. The graduated bolt passes through the bolt holes on the adjustment portion and the first handle in sequence. The hexagonal nut is connected to the graduated bolt and is in close contact with the inner side surface of the adjustment portion. The knurled nut is connected to the graduated bolt and is in close contact with the outer side surface of the first handle.

6. The portable labor-saving grafting knife according to claim 1, characterized in that: The first knife handle is made of stainless steel, and the second knife handle is made of spring steel.

7. A portable labor-saving grafting knife as claimed in claim 2, characterized in that: The front ends of the first handle and the adjusting part are both provided with a blade mounting frame, the grafting blade is provided with a clamping slot, and the blade mounting frame is provided with a clamping portion matched with the clamping slot.

Citation Information

Patent Citations

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