Fixing device for melon and vegetable seedling grafting
By designing an adjustable clamping body and a fixing device for the support structure, the problem of insufficient support for grafted branches is solved, thereby improving the success rate and practicality of grafting and adapting to grafting needs under different conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA HUI AUTONOMOUS REGION AGRI SCHOOL
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-23
Smart Images

Figure CN224386274U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grafting tooling technology, and in particular to a fixing device for grafting melon and vegetable seedlings. Background Technology
[0002] Grafting is one of the artificial propagation methods of plants, which involves grafting a branch or bud of one plant onto the stem or root of another plant, allowing the two joined parts to grow into a complete plant. Grafting utilizes the plant's ability to heal after injury, a mechanism that effectively improves the disease resistance of fruits and vegetables while reducing the amount of pesticides needed. Current grafting techniques are broadly classified into: layering, branch grafting, and approach grafting.
[0003] Existing grafting methods involve manually cutting an opening in the plant surface with a knife, inserting the grafted plant into the opening, and finally securing it with tape. This method suffers from issues such as unreliable adhesion at the graft union, inconvenience during binding and removal, and the risk of accidentally snagging on the plant surface during removal, making it less practical. To address this problem, Chinese utility model patent application number 202321496737.8 discloses a grafting sleeve for seedling cultivation. This sleeve incorporates a compression plate inside the connecting sleeve, which, combined with the elasticity of a telescopic spring, compresses and secures the graft union, ensuring a proper fit between the two plants while providing sufficient growth space to prevent excessive compression and promote healthy growth. The protective sleeve also provides good insulation and protection, and the limiting component secures the two protective sleeves together, facilitating easy assembly and disassembly of the grafting sleeve.
[0004] However, while the grafting sleeves provided by the above-mentioned solutions can be used to fix grafted plants and are easy to install, in practice, the length and thickness of the grafting branches often vary depending on the type of plant and the grafting method. For example, for approach grafting, branches with a diameter of more than 4cm are often required, and the length of the branches is often more than 15cm, making these grafting branches typically quite heavy. The above-mentioned technical solution only fixes the grafting sleeve at the contact point between the grafting branch and the grafting body. This is clearly insufficient to support the weight of the grafting branch, easily leading to cracking at the joint or a weak bond. This makes it difficult for callus tissue to form at the graft union, ultimately resulting in grafting failure. Utility Model Content
[0005] In view of this, and to address the above shortcomings, it is necessary to propose a fixing device for grafting melon and vegetable seedlings, which can improve the support for grafted branches during the grafting process, thereby increasing the success rate of grafting melon and vegetable seedlings.
[0006] This utility model provides a fixing device for grafting melon and vegetable seedlings, including: a first rod, a second rod, a first clamping body, and a second clamping body; the first rod and the second rod are hinged together at the middle position of the rod as the connection point; the first clamping body is adjustablely installed on the first rod and the second rod on one side of the connection point to clamp and fix the grafting point of the grafted branch and the grafted body; the second clamping body is adjustablely installed on the first rod and the second rod on the other side of the connection point to clamp and fix it on the grafted body as a support.
[0007] Preferably, both the first rod and the second rod are hollow columns, and both sides located in the middle position are provided with a plurality of mounting holes along the axial direction, for adjusting the distance between the first clamping body and the second clamping body by installing the first clamping body and the second clamping body on different mounting holes on both sides of the connection point.
[0008] Preferably, both the first rod and the second rod are hollow quadrangular prisms. The side of the first rod and the second rod that are in contact with each other, and located in the middle position, are provided with quadrilateral grooves, and the connection point is located at the center of the quadrilateral groove.
[0009] Preferably, a groove is provided on the first or second rod body along the edge of the quadrilateral groove, and the bottom of the groove is connected to the quadrilateral groove; an L-shaped connecting rod is slidably disposed inside the groove, one end of which extends out of the groove and is fixedly connected to the first slider outside the groove, and the other end extends into the quadrilateral groove and is fixedly connected to the second slider located in the quadrilateral groove.
[0010] Preferably, elastic plates are provided on both sides of the hinge position of the first rod and the second rod, with one end of the elastic plate fixedly connected to the first rod and the other end fixedly connected to the second rod.
[0011] Preferably, the elastic sheet is a torsion spring.
[0012] Preferably, both the first clamping body and the second clamping body include: a first arc-shaped clamping body and a second arc-shaped clamping body, the first arc-shaped clamping body and the second arc-shaped clamping body are arranged with their inner sides facing each other, the outer side of the first arc-shaped clamping body is fixedly connected to one side of the first fixing component, and the other side of the first fixing component is used to be installed on the first rod body; the outer side of the second arc-shaped clamping body is fixedly connected to one side of the second fixing component, and the other side of the second fixing component is used to be installed on the second rod body.
[0013] Preferably, the inner side of the first arc-shaped clamp is provided with an installation groove, which is used to install an insulation pad for insulating the grafting point.
[0014] Preferably, the mounting hole is an n-sided hole, and both the first fixing component and the second fixing component are n-sided blocks on the side where they are installed in the mounting hole, and can be inserted into the n-sided hole for installation; wherein, n≥3.
[0015] Preferably, the front end of the n-sided block is provided with a pin hole for installing a pin.
[0016] As can be seen from the above technical solution, the fixing device for grafting melon and vegetable seedlings provided in this embodiment includes a first rod, a second rod, a first clamping body, and a second clamping body. The first rod and the second rod are hinged together at their midpoints. The first clamping body is adjustablely mounted on one side of the first and second rods at the connection point to clamp and fix the grafting point between the grafted branch and the grafting body. The second clamping body is adjustablely mounted on the other side of the connection point on the first and second rods to clamp and fix it to the grafting body as a support. Therefore, this solution can clamp and fix the grafting point using the first clamping body, ensuring the firmness of the graft and preventing the grafted branch from detaching from the grafting body. Meanwhile, the second clamping element can hold the grafting body in place, providing excellent support for the first clamping element. Even if the grafted branch is long and heavy, it still provides sufficient support, preventing cracking or detachment at the graft union due to the length or weight of the branch. This prevents callus formation from being hindered, thus affecting the grafting success rate of vegetable seedlings. Furthermore, the installation positions of both the first and second clamping elements on the first and second stems are adjustable. This allows the position of the first clamping element to be adjusted according to the thickness and location of the actual graft union, and the position of the second clamping element to be adjusted based on the effect of the first clamping element and the position and thickness of the branch on the grafting body. This provides greater flexibility and practicality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a fixing device for grafting melon and vegetable seedlings, provided as an embodiment of the present invention.
[0018] Figure 2 This is a schematic diagram of a second rod provided in an embodiment of the present utility model.
[0019] Figure 3 This is a schematic diagram showing the connection of an L-shaped connecting rod, a first slider, and a second slider, provided for an embodiment of this utility model.
[0020] Figure 4 This is a schematic diagram of a first clamping body provided in an embodiment of the present utility model.
[0021] In the figure: First rod 1, Second rod 2, First clamping body 3, First arc-shaped clamping body 31, Second arc-shaped clamping body 32, First fixing component 33, Second fixing component 34, Second clamping body 4, Mounting hole 5, Quadrilateral groove 6, Slide groove 7, L-shaped connecting rod 8, First slider 9, Second slider 10, Elastic sheet 11, Mounting groove 12. Detailed Implementation
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] See Figure 1-4 As shown, this utility model provides a fixing device for grafting melon and vegetable seedlings, including: a first rod 1, a second rod 2, a first clamping body 3, and a second clamping body 4; the first rod 1 and the second rod 2 are hinged together with the middle position of the rod as the connection point; the first clamping body 3 is adjustablely installed on the first rod 1 and the second rod 2 on one side of the connection point, and is used to clamp and fix the grafting point of the grafted branch and the grafted body; the second clamping body 4 is adjustablely installed on the first rod 1 and the second rod 2 on the other side of the connection point, and is used to clamp and fix it on the grafted body as a support.
[0024] In this embodiment, the first clamping body 3 can clamp and fix the grafting point, ensuring the firmness of the graft and preventing the grafted branch from falling off the grafting body. Simultaneously, the second clamping body 4 can clamp onto the grafting body, thus providing excellent support for the first clamping body 3. Even if the grafted branch is long and heavy, it still has sufficient support, preventing the grafting point from cracking or detaching due to its length or weight, which would hinder callus formation and affect the grafting success rate of fruit seedlings. Furthermore, the installation positions of both the first clamping body 3 and the second clamping body 4 on the first stem 1 and the second stem 2 are adjustable. This allows the position of the first clamping body 3 to be adjusted according to the actual thickness and location of the grafting point, and the position of the second clamping body 4 to be adjusted based on the effect of the first clamping body 3 and the position and thickness of the branch on the grafting body, providing greater flexibility and practicality.
[0025] In one embodiment, both the first rod 1 and the second rod 2 are hollow cylinders, and both sides located at the middle position are provided with a plurality of mounting holes 5 along the axial direction. These holes are used to adjust the distance between the first clamping body 3 and the second clamping body 4 by mounting them onto different mounting holes 5 on both sides of the connection point. That is, by mounting the first clamping body 3 and the second clamping body 4 onto different mounting holes 5, the distance between them can be adjusted, allowing for flexible adjustment according to the actual installation scenario.
[0026] Specifically, both the first rod 1 and the second rod 2 are hollow quadrangular prisms, which significantly reduces the weight of the entire fixing device. Furthermore, a quadrilateral groove 6 can be provided on the contact surface of the first rod 1 and the second rod 2, located in the middle position, with the connection point at the center of the quadrilateral groove 6. A sliding groove 7 is provided on the first rod 1 or the second rod 2 along the edge of the quadrilateral groove 6, with the bottom of the sliding groove 7 communicating with the quadrilateral groove 6. An L-shaped connecting rod 8 is slidably disposed inside the sliding groove 7, with one end extending outward from the sliding groove 7 and fixedly connected to the first slider 9 outside the sliding groove 7, and the other end extending into the quadrilateral groove 6 and fixedly connected to the second slider 10 located inside the quadrilateral groove 6. Thus, a person can adjust the position of the second slider 10 by moving the first slider 9, thereby adjusting the rotation range of the hinged connection between the first rod 1 and the second rod 2, and consequently adjusting the clamping force of the first clamping body 3. For example, consider the case where the L-shaped connecting rod 8, the first slider 9, and the second slider 10 are disposed on the second rod 2. When the clamping force of the first clamping body 3 at the grafting point is too great, to avoid damage to the grafting point, the first slider 9 can be slid to move the second slider 10 closer to the connection point. Because of the obstruction of the second slider 10, the acute angle between the second stem 2 and the first stem 1 will be larger, thus reducing the clamping force of the first clamping body 3. Therefore, by properly adjusting the position of the second slider 10, a suitable clamping force can be ensured for the first clamping body 3, guaranteeing the healthy growth of the grafted branch.
[0027] In one embodiment, the first clamping body 3 and the second clamping body 4 each include: a first arc-shaped clamping body 31 and a second arc-shaped clamping body 32, the first arc-shaped clamping body 31 and the second arc-shaped clamping body 32 are arranged facing each other on their inner sides, the outer side of the first arc-shaped clamping body 31 is fixedly connected to one side of the first fixing component 33, and the other side of the first fixing component 33 is used to be installed on the first rod body 1; the outer side of the second arc-shaped clamping body 32 is fixedly connected to one side of the second fixing component 34, and the other side of the second fixing component 34 is used to be installed on the second rod body 2.
[0028] Specifically, the first arc-shaped clamp 31 and the second arc-shaped clamp 32 can be two semi-circular cylinders, with their inner sides facing each other to form a complete cylinder. Continuing with the above example, when the position of the second slider 10 is adjusted, the distance between the first arc-shaped clamp 31 and the second arc-shaped clamp 32 can be adjusted, thereby adjusting the clamping force at the grafting position.
[0029] To ensure a secure clamping action between the first clamping body 3 and the second clamping body 4, in one embodiment, elastic plates 11 are provided on both sides of the hinge joint between the first rod 1 and the second rod 2. One end of each elastic plate 11 is fixedly connected to the first rod 1, and the other end is fixed to the second rod 2. Thus, the elastic plate 11 on the left side generates an outward expanding force, thereby applying force to the right side of the first rod 1 and the second rod 2 connected at both ends. Conversely, the elastic plate 11 on the right side generates an outward expanding force, thereby applying force to the left side of the first rod 1 and the second rod 2 connected at both ends. At this time, due to the simultaneous application of force by the left and right elastic plates 11, both the first rod 1 and the second rod 2 generate an inward rotating force, thereby generating a stronger clamping force between the first arc-shaped clamping body 31 and the second arc-shaped clamping body 32, ensuring a secure clamping effect. Furthermore, by adjusting the position of the second slider 10, it is possible to ensure that the first clamping body 3 has a relatively firm clamping force while avoiding damage to the grafting site, thus affecting the survival and healthy growth of the grafted branches.
[0030] In one embodiment, the elastic sheet 11 can be a torsion spring.
[0031] Considering that after grafting, the grafting site needs to be maintained at a certain temperature level to ensure a better survival rate for the grafted branches, and given that fruit grafting is typically carried out in early spring and late autumn, with an optimal temperature for wound healing of approximately 25 degrees Celsius, it is difficult to achieve this optimal temperature for wound healing in Northwest China during early spring and late autumn. Therefore, to improve the survival rate of grafted branches, an installation groove 12 is designed on the inner side of the first arc-shaped clamp 31 and / or the second arc-shaped clamp 32. This groove 12 can accommodate an insulating pad to keep the grafting site warm. Thus, by installing an insulating pad on the inner side of the first arc-shaped clamp 31 and the second arc-shaped clamp 32, the grafting site inside the first clamp 3 can be effectively kept warm, thereby contributing to a higher survival rate for the grafted branches.
[0032] In one embodiment, the mounting holes 5 on the first rod 1 and the second rod 2 can be n-sided, such as triangles, quadrilaterals, pentagons, hexagons, etc. The side of the first fixing component 33 and the second fixing component 34 that is installed with the mounting hole 5 is a corresponding n-sided block. For example, when the mounting hole 5 is a triangular hole, the first fixing component 33 and the second fixing component 34 will have triangular blocks; when the mounting hole 5 is a pentagonal hole, the first fixing component 33 and the second fixing component 34 will have pentagonal holes, thereby ensuring that the n-sided blocks on the first fixing component 33 and the second fixing component 34 can be inserted into the mounting holes 5 with n-sided holes, realizing the installation of the first arc-shaped clamp 31 and the second arc-shaped clamp 32. Of course, in one embodiment, to further ensure the reliability of the installation and prevent the first fixing component 33 and the second fixing component 34 from sliding out of the mounting hole 5, a pin hole can also be provided at the front end of the n-sided block. Thus, when the n-sided blocks of the first fixing component 33 and the second fixing component 34 are inserted into the mounting hole 5, the front end of the n-sided block protrudes from the other side of the mounting hole 5. At this time, by inserting the pin into the pin hole, the first arc-shaped clamp 31 and the second arc-shaped clamp 32 are securely installed, avoiding the first fixing component 33 and the second fixing component 34 from sliding out of the mounting hole 5 due to different installation angles of the device.
[0033] In one embodiment, the first rod, the second rod, the first clamping body, and the second clamping body may be made of materials such as stainless steel, aluminum alloy, or rubber.
[0034] After grafting melon and fruit seedlings, the grafting branch and grafting body are clamped and fixed using the fixing device for grafting melon and vegetable seedlings provided by this utility model. Specifically, the first arc-shaped clamp 31 and the second arc-shaped clamp 32 of the first clamping body 3 are clamped at the grafting point. At the same time, according to the position, thickness, and length of the grafting point, as well as the clamping firmness of the grafting point, a suitable mounting hole 5 is selected so that the first arc-shaped clamp 31 and the second arc-shaped clamp 32 are installed on the first rod body 1 and the second rod body 2. Of course, if it is necessary to keep the grafting point warm, when installing the first arc-shaped clamp 31 and the second arc-shaped clamp 32, a heat-insulating pad is installed in the mounting groove 12 on the inner side of the first arc-shaped clamp 31 and the second arc-shaped clamp 32. Furthermore, on the support pole of the grafted body with the grafted branch, according to the positions of the first pole 1 and the second pole 2, a suitable position is selected, and the first arc-shaped clamp 31 and the second arc-shaped clamp 32 of the second clamping body 4 are clamped onto the support pole of the grafted body. The first arc-shaped clamp 31 and the second arc-shaped clamp 32 of the second clamping body 4 are then installed on the other side of the first pole 1 and the second pole 2. Finally, the position of the second slider 10 is adjusted by sliding the first slider 9, so that the first clamping body 3 has a suitable clamping force on the grafting position.
[0035] The modules or units in the device of this utility model embodiment can be merged, divided, and deleted according to actual needs. The above-disclosed embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this utility model still fall within the scope of this utility model.
Claims
1. A fixing device for grafting seedlings of melons and vegetables, characterized in that, include: The system comprises a first rod, a second rod, a first clamping body, and a second clamping body. The first rod and the second rod are hinged together at the midpoint of their respective joints. The first clamping body is adjustable and mounted on one side of the joint to clamp and fix the grafting point between the grafted branch and the grafted body. The second clamping body is adjustable and mounted on the other side of the joint to clamp and fix the grafted body as a support.
2. The fixing device for grafting seedlings of melons and vegetables according to claim 1, characterized in that, Both the first rod and the second rod are hollow cylinders, and both sides located in the middle position are provided with a number of mounting holes along the axial direction. These holes are used to adjust the distance between the first clamping body and the second clamping body by installing the first clamping body and the second clamping body on different mounting holes on both sides of the connection point.
3. The fixing device for grafting seedlings of melons and vegetables according to claim 2, characterized in that, Both the first rod and the second rod are hollow quadrangular prisms. The side of the first rod and the second rod that are in contact with each other, and located in the middle position, are provided with quadrilateral grooves, and the connection point is located at the center of the quadrilateral grooves.
4. The fixing device for grafting seedlings of melons and vegetables according to claim 3, characterized in that, A sliding groove is provided on the first rod or the second rod along the edge of the quadrilateral groove, and the bottom of the sliding groove is connected to the quadrilateral groove; an L-shaped connecting rod is slidably disposed inside the sliding groove, one end of which extends out of the sliding groove and is fixedly connected to the first slider outside the sliding groove, and the other end extends into the quadrilateral groove and is fixedly connected to the second slider located in the quadrilateral groove.
5. The fixing device for grafting seedlings of melons and vegetables according to claim 1, characterized in that, Elastic plates are provided on both sides of the hinge position of the first rod and the second rod. One end of the elastic plate is fixedly connected to the first rod, and the other end is fixed to the second rod.
6. The fixing device for grafting seedlings of melons and vegetables according to claim 5, characterized in that, The elastic sheet is a torsion spring.
7. The fixing device for grafting seedlings of melons and vegetables according to claim 2, characterized in that, Both the first clamping body and the second clamping body include: a first arc-shaped clamping body and a second arc-shaped clamping body, the first arc-shaped clamping body and the second arc-shaped clamping body are arranged with their inner sides facing each other, the outer side of the first arc-shaped clamping body is fixedly connected to one side of the first fixing component, and the other side of the first fixing component is used to be installed on the first rod body; the outer side of the second arc-shaped clamping body is fixedly connected to one side of the second fixing component, and the other side of the second fixing component is used to be installed on the second rod body.
8. The fixing device for grafting seedlings of melons and vegetables according to claim 7, characterized in that, The inner side of the first arc-shaped clamp is provided with an installation groove, which is used to install an insulation pad to keep the grafting point warm.
9. The fixing device for grafting seedlings of melons and vegetables according to claim 7, characterized in that, The mounting hole is an n-sided hole. The first fixing component and the second fixing component are both n-sided blocks installed on the side of the mounting hole, and can be inserted into the n-sided hole for installation; wherein, n≥3.
10. The fixing device for grafting seedlings of melons and vegetables according to claim 9, characterized in that, The front end of the n-sided block has a pin hole for installing a pin.