A grafting tool for a tree grafting technique
By using staggered blades and a sloping groove design, combined with a spring return and snap-fit block structure, the problem of existing tools requiring manual opening is solved, achieving efficient grafting and safe use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 大通回族土族自治县林业站
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-26
AI Technical Summary
Existing grafting tools require manual opening of the handle when cutting plant roots and stems, which reduces grafting efficiency and poses a safety hazard when the blade is exposed.
A grafting tool with staggered blades was designed, featuring a slanted groove and a spring reset mechanism. The blades reset automatically and automatically close together via a locking block and a sliding lever, preventing the blades from being exposed.
It improved the grafting survival rate, enhanced safety, increased operational efficiency, and reduced production costs.
Smart Images

Figure CN224267481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tree grafting tools, specifically a grafting knife for tree grafting technology. Background Technology
[0002] Grafting is one of the artificial methods of vegetative propagation of plants. It involves grafting a branch or bud of one plant onto the stem or root of another plant, so that the two parts grow into a complete plant. During grafting, the cambium layers of the scion and the rootstock should be in close contact to ensure the survival of the scion. The branch or bud that is grafted is called the scion, and the plant that is grafted is called the rootstock.
[0003] In the prior art, such as Chinese Patent Publication No. CN211430158U, a grafting tool for forest grafting technology is disclosed, including a first grafting blade, a second grafting blade, a left grafting handle, a right grafting handle, and a grafting sleeve. The first grafting blade and the second grafting blade are respectively inserted into the left grafting handle and the right grafting handle. A first rotating shaft is provided at the intersection of the left grafting handle and the right grafting handle. A second rotating shaft is provided inside the bottom side of the right grafting handle. A budding knife is sleeved in the middle of the second rotating shaft. A third rotating shaft is provided inside the bottom side of the left grafting handle. A branch grafting knife is sleeved in the middle of the third rotating shaft. A grinding sleeve is fixedly installed on both the left grafting handle and the right grafting handle.
[0004] The aforementioned patented technology combines multiple blades together, making it convenient to carry and preventing hand abrasions caused by prolonged use. However, when using the grafting blade to cut plant roots and stems, the handles of the grafting blades at both ends need to be pressed inwards so that the blades at the top can cut the plant. Since the grafting blade retracts after cutting, the handles need to be manually opened again before subsequent cutting can be performed, thus reducing grafting efficiency. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a grafting tool for forest grafting technology, which solves the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a grafting tool for forest grafting technology, comprising a first handle and a second handle, wherein a first blade is fixedly installed on the top of the first handle, and a second blade is fixedly installed on the top of the second handle, a rotating shaft is rotatably installed at the intersection of the first blade and the second blade, an embedding groove is provided on one side of the bottom end of the second handle, a through hole is provided on the surface of the second handle, a positioning shaft is fixedly installed on one side of the outer wall of the first handle, a movable rod is rotatably installed inside the positioning shaft, a positioning shaft is fixedly installed on one side of the outer wall of the second handle, a connecting rod is rotatably installed inside the positioning shaft, a spring is fixedly installed on the side of the second handle, a locking block is fixedly connected to one side of the outer wall of the connecting rod, and a sliding locking rod is provided inside the through hole.
[0007] Preferably, the surface of the second blade is provided with an oblique groove, and the other end of the spring is fixedly connected to the top of the outer wall of the first handle.
[0008] Preferably, the bottom of the movable rod is provided with a plug groove, and the bottom end of the connecting rod is rotatably installed inside the plug groove.
[0009] Preferably, the shape of the snap-fit block matches the shape of the embedding groove, and the top of the snap-fit block has a snap-fit groove.
[0010] Preferably, the through hole extends through the interior of the second handle, and the interior of the through hole communicates with the interior of the embedding groove.
[0011] Preferably, the sliding lever is slidably installed inside the embedding groove, and the shape of the sliding lever matches the shape of the groove.
[0012] Preferably, two limit blocks are fixedly installed on the surface of the sliding lever, and the two limit blocks are respectively located at the front and rear ends of the second handle.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, the first blade and the second blade are staggered to make the cut on the plant rootstock relatively flat. The oblique groove on the surface of the second blade can cut the plant rootstock at an oblique angle, thereby increasing the contact area between the grafting scion and the grafting survival rate. The spring between the first handle and the second handle can make the blade return to its original position after being pressed, so that multiple cutting operations can be repeated without manually opening the blade.
[0015] 2. In this utility model, the distance between the first handle and the second handle is shortened, which can adjust the position of the locking block. When the locking block is pushed into the embedded groove, the sliding rod slides down into the groove to limit and fix the locking block, thereby closing and fixing the first blade and the second blade, preventing the first blade and the second blade from being exposed and causing danger when the knife is idle. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of a grafting tool for forest grafting technology proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the second handle of a grafting tool for forest grafting technology proposed in this utility model;
[0018] Figure 3 This is an enlarged schematic diagram of the grafting tool used in the forest grafting technology proposed in this utility model at point A;
[0019] Figure 4 This is an enlarged schematic diagram of section B of the grafting tool used in the forest grafting technology proposed in this utility model.
[0020] In the diagram: 1. First grip; 11. Blade 1; 12. Positioning shaft 1; 13. Movable rod; 131. Insertion groove; 2. Second grip; 201. Embedded groove; 202. Through hole; 21. Blade 2; 211. Inclined groove; 22. Positioning shaft 2; 23. Connecting rod; 3. Rotating shaft; 4. Spring; 5. Snap-fit block; 501. Snap-fit groove; 6. Sliding snap-fit rod; 61. Limiting block. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1
[0023] like Figures 1-4As shown, this utility model provides a technical solution: a grafting tool for forest grafting technology, including a first handle 1 and a second handle 2. A first blade 11 is fixedly installed on the top of the first handle 1, and a second blade 21 is fixedly installed on the top of the second handle 2. A rotating shaft 3 is rotatably installed at the intersection of the first blade 11 and the second blade 21. An embedding groove 201 is provided on one side of the bottom end of the second handle 2, and a through hole 202 is provided on the surface of the second handle 2. A positioning shaft 12 is fixedly installed on one side of the outer wall of the first handle 1, and a movable rod 13 is rotatably installed inside the positioning shaft 12. A positioning shaft 22 is fixedly installed on one side of the outer wall of the second handle 2, and a connecting rod 23 is rotatably installed inside the positioning shaft 22. A spring 4 is fixedly installed on the side of the second handle 2, and a locking block 5 is fixedly connected to one side of the outer wall of the connecting rod 23. A sliding locking rod 6 is provided inside the through hole 202. A slanted groove 211 is provided on the surface of the second blade 21, and the other end of the spring 4 is fixedly connected to the top end of the outer wall of the first handle 1.
[0024] In this embodiment, the rotating shaft 3 passes through the interior of both blade 11 and blade 21, allowing the first handle 1 and the second handle 2 to be pressed and rotated. By pressing the first handle 1 and the second handle 2 inward simultaneously, blade 11 and blade 21 can come closer together, thus cutting the plant root. Blade 11 and blade 21 are staggered, making the cut on the plant root relatively flat. When cutting inside the inclined groove 211 where the plant root is located, the cutting position of the plant root can be cut into an oblique cut, thereby increasing the contact area between the graft union and the scion. The first handle 1 and the second handle 2 come closer together to perform the cutting operation. The spring 4 can make the pressed blade return to its original position, so that the cut blade 11 and blade 21 can unfold on their own after cutting, allowing for repeated cutting operations without manually opening the blade.
[0025] Example 2
[0026] like Figures 1-4 As shown, the bottom of the movable rod 13 is provided with a plug groove 131, and the bottom end of the connecting rod 23 is rotatably installed inside the plug groove 131. The shape of the snap block 5 matches the shape of the embedded groove 201. The top of the snap block 5 is provided with a slot 501. The through hole 202 passes through the inside of the second handle 2. The inside of the through hole 202 is connected to the inside of the embedded groove 201. The sliding snap rod 6 is slidably installed inside the embedded groove 201. The shape of the sliding snap rod 6 matches the shape of the slot 501. The surface of the sliding snap rod 6 is fixedly installed with a limit block 61. There are two limit blocks 61. The two limit blocks 61 are respectively set at the front and rear ends of the second handle 2.
[0027] In this embodiment, the distance between positioning shaft 12 and positioning shaft 22 is shortened, and the movable rod 13 and connecting rod 23 at the bottom rotate in a linkage motion. At the same time, the distance between the locking block 5 and the embedding groove 201 is shortened, and the locking block 5 moves into the embedding groove 201. The sliding locking rod 6 is slidably installed in the through hole 202, allowing the sliding locking rod 6 to move freely. The limiting block 61 can prevent the sliding locking rod 6 from disengaging from the through hole 202. Through the locking engagement between the sliding locking rod 6 and the locking groove 501, the position of the locking block 5 can be limited and fixed, so that the first handle 1 and the second handle 2 are closed and fixed, avoiding the danger caused by the blade 11 and blade 21 being exposed when the tool is idle. At the same time, there is no need to use an additional sleeve to cover and protect the blade 11 and blade 21, reducing production costs.
[0028] Working principle: When the blade is idle, the first handle 1 and the second handle 2 are retracted, and the locking block 5 is located inside the embedding groove 201. The sliding locking rod 6 moves down and embeds into the locking groove 501 to limit the locking block 5, thereby preventing the first handle 1 and the second handle 2 from unfolding, thus improving the safety of use. By pushing the sliding locking rod 6 upward, it disengages from the locking groove 501, and the spring 4 returns to its original position, allowing the first handle 1 and the second handle 2 to unfold. By pressing the first handle 1 and the second handle 2 together, the spring 4 will continue to be compressed and deformed. Through the cooperation between the first blade 11 and the second blade 21, the plant roots and stems are cut and grafted. When it is necessary to make a slanted cut on the cutting end of the plant roots and stems, the plant roots and stems are placed inside the slanted groove 211 for cutting, so that the cut end of the plant roots and stems is on the slant. When the blade is released, the spring 4 returns to its original position, allowing the first blade 11 and the second blade 21 to unfold automatically. Multiple cutting operations can be repeated without manually opening the blade.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A grafting tool for a forest tree grafting technique, characterized in that: The device includes a first handle (1) and a second handle (2). A first blade (11) is fixedly installed on the top of the first handle (1), and a second blade (21) is fixedly installed on the top of the second handle (2). A rotating shaft (3) is rotatably installed at the intersection of the first blade (11) and the second blade (21). An embedded groove (201) is provided on one side of the bottom end of the second handle (2). A through hole (202) is provided on the surface of the second handle (2). A positioning shaft (12) is fixedly installed on one side of the outer wall of the first handle (1). A movable rod (13) is rotatably installed inside the positioning shaft (12). A positioning shaft (22) is fixedly installed on one side of the outer wall of the second handle (2). A connecting rod (23) is rotatably installed inside the positioning shaft (22). A spring (4) is fixedly installed on the side of the second handle (2). A snap-fit block (5) is fixedly connected to one side of the outer wall of the connecting rod (23). A sliding snap rod (6) is provided inside the through hole (202).
2. The grafting tool for forest tree grafting technology according to claim 1, characterized in that: The surface of the second blade (21) is provided with a slanted groove (211), and the other end of the spring (4) is fixedly connected to the top of the outer wall of the first handle (1).
3. The grafting tool for forest tree grafting technology according to claim 1, characterized in that: The bottom of the movable rod (13) is provided with a plug groove (131), and the bottom end of the connecting rod (23) is rotatably installed inside the plug groove (131).
4. The grafting tool for forest tree grafting technology according to claim 1, characterized in that: The shape of the snap-fit block (5) matches the shape of the embedding groove (201), and the top of the snap-fit block (5) is provided with a snap-fit groove (501).
5. The grafting tool for forest tree grafting technology according to claim 1, characterized in that: The through hole (202) extends through the interior of the second handle (2), and the interior of the through hole (202) is in communication with the interior of the embedded groove (201).
6. The grafting tool for forest tree grafting technology according to claim 1, characterized in that: The sliding lever (6) is slidably installed inside the embedded groove (201), and the shape of the sliding lever (6) matches the shape of the groove (501).
7. The grafting tool for forest tree grafting technology according to claim 1, characterized in that: Limiting blocks (61) are fixedly installed on the surface of the sliding lever (6). There are two limiting blocks (61), which are respectively located at the front and rear ends of the second handle (2).