A melon seedling grafting device
By designing an integrated melon seedling grafting device, the inconvenience and loss problems caused by the separate use of grafting needles and grafting knives were solved, realizing convenient tool switching and safe use, and improving the grafting success rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANNING AGRI SCI RES INST (NANNING VEGETABLE RES INST NANNING AGRI PROD QUALITY & SAFETY INSPECTION CENT)
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-02
AI Technical Summary
The existing grafting needles and grafting knives are divided into two parts, which require repeated switching during use, causing inconvenience and making them easy to lose.
A melon seedling grafting device was designed, which integrates a shell, a limiting block, a connecting block, a sliding block, a grafting knife, and a grafting needle. The grafting knife and grafting needle are integrated into a single design. The automatic spring reset and the limiting function of the protective block ensure the convenient use and portability of the tool.
It enables convenient switching and use of grafting knives and grafting needles, improves the success rate of grafting operations, avoids tool loss, and enhances operational safety.
Smart Images

Figure CN224306419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of melon seedling grafting technology, and in particular to a melon seedling grafting device. Background Technology
[0002] Watermelon is a popular fruit. Grafting seedlings are a crucial step in solving crop rotation difficulties and resisting continuous cropping in watermelon-producing areas, thereby improving efficiency and reducing costs. During grafting, the growing point of the rootstock seedling is first removed. Then, a grafting needle is inserted obliquely downwards about 2 cm from the growing point, with the tip just protruding from the rootstock. Next, a scion is taken and a wedge-shaped surface is cut 2 cm below the cotyledons of the watermelon seedling using a grafting knife. The grafting needle is removed, and the scion is inserted into the hole with the cut end facing downwards, the tip protruding from the rootstock. These operations require frequent use of the grafting needle and grafting knife. Currently, these grafting needles and knives are divided into two parts, requiring repeated switching during use, which is inconvenient. Furthermore, since only one tool can be used at a time after switching, the other tool is easily lost. Utility Model Content
[0003] The purpose of this invention is to solve the problems of existing grafting needles and grafting knives, which are divided into two parts and require repeated switching during use, which is very inconvenient. Furthermore, since only one tool can be used after switching, the other tool is easily lost. Therefore, this invention proposes a melon seedling grafting device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A melon seedling grafting device includes a shell, a first limiting block, a second limiting block, a connecting block, two sliding blocks, a first grafting knife, and a grafting needle. The first limiting block and the second limiting block are fixedly connected to both ends of the shell, respectively. The connecting block is adapted to the shell and is slidably disposed inside the shell. The inner wall of the shell is symmetrically provided with sliding holes and sliding grooves. The two sliding blocks are slidably disposed in the sliding holes and sliding grooves, respectively. The sides of the two sliding blocks that are close to each other are fixedly connected to the connecting block. The side of the sliding block disposed in the sliding hole that is away from the connecting block extends to the outside of the shell. The first limiting block is provided with a first telescopic hole adapted to the first grafting knife, and the second limiting block is provided with a second telescopic hole adapted to the grafting needle. The side of the connecting block that is close to the first limiting block is fixedly connected to the first grafting knife, and the side of the connecting block that is close to the second limiting block is fixedly connected to the grafting needle.
[0006] Preferably, a spring is fitted on the grafting needle, and the two ends of the spring are fixedly connected to the connecting block and the second limiting block, respectively.
[0007] Furthermore, by incorporating a spring, the connecting block can automatically reset when the thrust is lost.
[0008] Preferably, the sliding block disposed in the sliding hole extends to one end of the outer side of the housing and is fixedly connected to an operating block.
[0009] Furthermore, by setting up the operation block, the sliding block can be pushed more conveniently.
[0010] Preferably, the first limiting block has an installation hole, and a sheath is fixedly installed at the installation hole. The hole of the sheath is conical, and the opening of the sheath matches the installation hole. A second grafting knife is installed inside the sheath.
[0011] Furthermore, the second grafting knife allows for a better fit between the cut watermelon seedling leaves and the grafting needle holes. The cleaning hole allows for the removal of waste watermelon seedling leaves from the shell.
[0012] Preferably, a protective block adapted to the housing is provided on the outer side of the housing, and a limiting hole adapted to the operating block is provided on the protective block. The operating block is placed in the limiting hole, and the protective block is snapped onto the housing.
[0013] Furthermore, when the protective block is engaged with the housing, the protective block limits the operation block, preventing it from moving and thus preventing the first grafting knife or grafting needle from extending due to accidental contact.
[0014] Beneficial effects:
[0015] 1. By using a spring, the connecting block can automatically reset when the thrust is lost.
[0016] 2. The second grafting knife allows for a better fit between the cut leaves of the watermelon seedling and the needle hole formed by the grafting needle. The cleaning hole allows for the removal of waste leaves from the cut watermelon seedling inside the shell.
[0017] 3. When the protective block is engaged with the housing, the protective block limits the operation block, preventing it from moving and thus preventing the first grafting knife or grafting needle from extending due to accidental contact.
[0018] In this invention, the cooperation of the shell, the first limiting block, the second limiting block, the connecting block, the sliding block, the first grafting knife, the grafting needle, the spring, the operating block, the second grafting knife, and the protective block allows the grafting knife and the grafting needle to be integrated. This not only allows for switching between the grafting needle and the grafting knife, but also makes it easy to carry. Furthermore, it makes the cut surface of the watermelon seedling leaf more compatible with the grafting hole formed by the grafting needle on the rootstock, thus improving the grafting success rate. Attached Figure Description
[0019] Figure 1 This is a three-dimensional perspective view of the present invention;
[0020] Figure 2This is a partial structural diagram of the present invention;
[0021] Figure 3 This is a partial structural cross-sectional view of the present invention;
[0022] Figure 4 This is a partial structural cross-sectional view of the present invention.
[0023] In the diagram: 1. Shell; 2. First limiting block; 3. Second limiting block; 4. Connecting block; 5. Sliding block; 6. First grafting knife; 7. Grafting needle; 8. Spring; 9. Operating block; 10. Second grafting knife; 11. Protective block. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Example 1
[0026] Reference Figures 1-4 A melon seedling grafting device includes a shell 1, a first limiting block 2, a second limiting block 3, a connecting block 4, two sliding blocks 5, a first grafting knife 6, and a grafting needle 7. The first limiting block 2 and the second limiting block 3 are fixedly connected to both ends of the shell 1, respectively. The connecting block 4 is adapted to the shell 1 and is slidably disposed inside the shell 1. The inner wall of the shell 1 is symmetrically provided with sliding holes and sliding grooves. The two sliding blocks 5 are slidably disposed in the sliding holes and sliding grooves, respectively. The sides of the two sliding blocks 5 that are close to each other are fixedly connected to the connecting block 4. The side of the sliding block 5 disposed in the sliding hole that is away from the connecting block 4 extends to the outside of the shell 1. The first limiting block 2 is provided with a first telescopic hole adapted to the first grafting knife 6, and the second limiting block 3 is provided with a second telescopic hole adapted to the grafting needle 7. The side of the connecting block 4 that is close to the first limiting block 2 is fixedly connected to the first grafting knife 6, and the side of the connecting block 4 that is close to the second limiting block 3 is fixedly connected to the grafting needle 7.
[0027] With the above structure: the connecting block 4 can extend the first grafting knife 6 by moving towards the first limiting block 2, and the grafting needle 7 can extend by moving towards the second limiting block 3.
[0028] In this utility model, a spring 8 is sleeved on the grafting needle 7, and the two ends of the spring 8 are fixedly connected to the connecting block 4 and the second limiting block 3 respectively.
[0029] Furthermore, by setting the spring 8, the connecting block 4 can be automatically reset when the thrust is lost.
[0030] In this invention, the sliding block 5, which is disposed in the sliding hole, extends to one end of the outer side of the housing 1 and is fixedly connected to the operating block 9.
[0031] Furthermore, by setting up operation block 9, sliding block 5 can be pushed more conveniently through operation block 9.
[0032] In this utility model, the first limiting block 2 has an installation hole, and a knife sheath is fixedly installed at the installation hole. The hole of the knife sheath is conical, and the opening of the knife sheath is adapted to the installation hole. A second grafting knife (10) is installed inside the knife sheath.
[0033] Furthermore, by setting the second grafting knife 10, the watermelon seedling leaves can be better matched with the needle holes formed by the grafting needle 7 after being cut off. By setting the cleaning hole, the waste leaves of the watermelon seedlings after being cut off can be cleaned inside the shell 1.
[0034] In this utility model, a protective block 11 adapted to the outer side of the housing 1 is provided, and a limiting hole adapted to the operating block 9 is provided on the protective block 11. The operating block 9 is disposed in the limiting hole, and the protective block 11 is snapped onto the housing 1.
[0035] Furthermore, when the protective block 11 is engaged on the housing 1, the protective block 11 limits the operation block 9, preventing the operation block 9 from moving and preventing the first grafting knife 6 or grafting needle 7 from extending due to accidental contact.
[0036] The working principle of this utility model:
[0037] Remove the protective block 11, then proceed as follows Figure 3 As shown, pushing the operating block 9 moves it towards the first limiting block 2, thereby moving the connecting block 4, sliding block 5, first grafting knife 6, and grafting needle 7 together towards the first limiting block 2 until the first grafting knife 6 extends out of the first telescopic hole on the first limiting block 2. At this time, the spring 8 is stretched. Use the first grafting knife 6 to remove the growing point of the rootstock seedling. Then push the operating block 9 towards the second limiting block 3 until the grafting needle 7 extends out of the first telescopic hole on the second limiting block 3. At this time, the spring 8 is compressed. Use the grafting needle 7 to insert it diagonally downward from the growing point of the rootstock to a depth of about 2 cm to form an insertion hole. Then release the operating block 9, so that... Spring 9 rebounds, thereby resetting grafting needle 7 and returning it to housing 1. Then, the root vein of the watermelon seedling is inserted into the second grafting knife 10. Next, housing 1 is rotated, and housing 1, first limiting block 2 and second grafting knife 10 rotate together. At this time, the root vein of the watermelon seedling is slowly inserted into the second grafting knife 10 until the cut surface of the root vein matches the grafting needle 7. Then, the root vein of the watermelon seedling is inserted into the insertion hole in the growth point of the rootstock. When the grafting device is not in use, the protective block 11 should be locked onto housing 1 to prevent the first grafting knife 6 or grafting needle 7 from being accidentally extended and causing injury to the operator.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A melon seedling grafting device, comprising a shell (1), a first limiting block (2), a second limiting block (3), a connecting block (4), two sliding blocks (5), a first grafting knife (6) and a grafting needle (7), characterized in that, The first limiting block (2) and the second limiting block (3) are fixedly connected to the two ends of the housing (1) respectively. The connecting block (4) is adapted to the housing (1) and is slidably disposed inside the housing (1). The inner wall of the shell (1) is symmetrically provided with sliding holes and sliding grooves. Two sliding blocks (5) are respectively slidably disposed in the sliding holes and sliding grooves. The sides of the two sliding blocks (5) that are close to each other are fixedly connected to the connecting block (4). The side of the sliding block (5) disposed in the sliding hole that is away from the connecting block (4) extends to the outside of the shell (1). The first limiting block (2) is provided with a first telescopic hole that is adapted to the first grafting knife (6). The second limiting block (3) is provided with a second telescopic hole that is adapted to the grafting needle (7). The side of the connecting block (4) that is close to the first limiting block (2) is fixedly connected to the first grafting knife (6). The side of the connecting block (4) that is close to the second limiting block (3) is fixedly connected to the grafting needle (7).
2. The melon seedling grafting device according to claim 1, wherein A spring (8) is fitted on the grafting needle (7), and the two ends of the spring (8) are fixedly connected to the connecting block (4) and the second limiting block (3) respectively.
3. The melon seedling grafting device according to claim 1, wherein An operating block (9) is fixedly connected to one end of the sliding block (5) located inside the sliding hole, extending to the outside of the housing (1).
4. The melon seedling grafting device according to claim 1, wherein The first limiting block (2) has an installation hole, and a knife sheath is fixedly installed at the installation hole. The hole of the knife sheath is conical, and the opening of the knife sheath is adapted to the installation hole. A second grafting knife (10) is installed inside the knife sheath.
5. The melon seedling grafting device according to claim 3, wherein A protective block (11) adapted to the outer side of the housing (1) is provided. A limiting hole adapted to the operating block (9) is provided on the protective block (11). The operating block (9) is located in the limiting hole. The protective block (11) is snapped onto the housing (1).
6. The melon seedling grafting device according to claim 1, wherein The housing (1) has cleaning holes.