Grafting point fixing device for citrus fruit bunching
By combining anti-slip strips and needles, the friction and pull-out resistance of the grafting point are enhanced, solving the problem of poor stability of traditional devices in windy weather and achieving a stable connection at the grafting point.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN TIANMASHAN ECOLOGICAL AGRI CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional grafting point fixing devices are unable to withstand lateral shearing forces in windy weather, causing branches to bend and detach from the grafting point. In addition, the fixing devices may shift, affecting the stability after grafting.
It adopts a combination design of anti-slip strips and barbs. The anti-slip strips are arranged in an alternating manner to enhance friction, and the barbs are embedded in the surface of the rootstock bark. Combined with buckles and locking grooves, it can be quickly installed and removed.
It effectively resists lateral shearing forces from strong winds, enhances the stability of the grafting point, prevents displacement of the fixing device due to branch twisting, and ensures a stable connection between the scion and the rootstock.
Smart Images

Figure CN224218968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grafting fixing devices, and in particular to a grafting point fixing device for citrus fruit clusters. Background Technology
[0002] Citrus is a general term for plants in the genus Citrus and its closely related genera of the Rutaceae family. It is an important type of fruit and economic crop. Citrus grafting is a common fruit tree grafting technique, mainly used to improve varieties, increase yield or enhance disease resistance. After grafting, the scion and the grafting base need to be fixed with a fixing device to facilitate the subsequent growth of the scion.
[0003] Traditional grafting point fixing devices are usually fixing clips or plastic sleeves. After the wound surfaces of the scion and the grafting base are put together, the grafting point is fixed by fixing clips or plastic sleeves. When using plastic sleeves to complete the fixing, plastic film needs to be wrapped around the grafting point to further fix the grafting point, thus completing the fixing of the citrus fruit cluster grafting point.
[0004] Existing grafting point fixing devices can only provide simple fixation during use. However, in windy weather, traditional clamps only provide radial clamping force, which is insufficient to resist the lateral shearing force caused by strong winds. This can lead to branches bending and detaching from the grafting point. At the same time, the twisting of branches by the wind may cause the fixing device to shift, making it difficult to ensure the stability of the grafted branches. Utility Model Content
[0005] The purpose of this invention is to solve the problem that existing grafting point fixing devices are difficult to cope with the impact of strong winds, and to propose a grafting point fixing device for citrus fruit bunching.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A grafting point fixing device for citrus fruit clustering includes a first shell and a second shell. A floating plate is provided inside both the first shell and the second shell. The floating plate includes at least two adjusting plates. One adjusting plate is provided with an anti-slip strip, and the other adjusting plate is provided with a needle. When the first shell and the second shell are fastened together, the anti-slip strip is in contact with the surface of the scion, and the needle is embedded in the rootstock.
[0008] To increase the friction between the device and the scion, preferably, the anti-slip strips are provided in multiple sets, and the multiple sets of anti-slip strips are arranged in an alternating pattern to form a diamond pattern.
[0009] To facilitate the pressing of the anti-slip strip into the bark surface of the scion, the height of the anti-slip strip is further 0.3-0.5mm, and the deformation of the anti-slip strip when it is in contact with the surface of the scion is 10-15%.
[0010] To prevent the fixing device from falling off or moving, preferably, a fastening groove is provided on the conical surface of the needle, so that when the needle pierces the rootstock, the fastening groove is embedded in the surface layer of the rootstock bark.
[0011] To facilitate the insertion of the needle into the bark of the rootstock, the angle between the axis of the needle and the axis of the adjusting plate is further defined as 25-35 degrees.
[0012] To maintain the clamping force of the wrapping plate, preferably, both the first and second housings are provided with support bars, and springs are provided on the support bars, with the two ends of the springs abutting against the support bars and the housings respectively.
[0013] To facilitate the fixing of the first and second housings, preferably, a buckle is fixedly installed on the first housing, and the second housing has equidistantly arranged locking grooves. When the first and second housings are close together, the buckle engages with the locking grooves.
[0014] Compared with the prior art, this utility model provides a grafting point fixing device for citrus fruit clusters, which has the following beneficial effects:
[0015] 1. This citrus grafting point fixing device uses anti-slip strips and needles in combination. The diamond-shaped anti-slip strips effectively increase the friction between the graft and the scion. At the same time, after the anti-slip strips are pressed against the surface of the scion's bark, an indentation is formed on the surface of the scion's bark. The anti-slip strips are embedded in the indentation, which can resist the lateral shear force brought by strong winds, making the grafting point between the scion and the rootstock more stable. After the needles are inserted into the surface of the rootstock's bark, the pull-out resistance is effectively improved, avoiding the problem of unstable grafting between the scion and rootstock caused by the displacement of the fixing device due to the twisting of branches caused by strong winds.
[0016] 2. This citrus grafting point fixing device achieves quick installation and quick disassembly through the combined use of buckles and locking grooves. At the same time, this device can be reused, avoiding the problem that some conventional fixing devices are difficult to reuse.
[0017] The parts of this device not covered are the same as or can be implemented using existing technology. This utility model uses anti-slip strips to increase the friction between the scion and the fixing device, avoiding the problem of the scion falling off the grafting point due to strong winds. At the same time, after the thorn is inserted into the rootstock, it can prevent the fixing device from shifting due to the twisting of the branches. Attached Figure Description
[0018] Figure 1 This is an isometric structural diagram of a grafting point fixing device for citrus fruit clustering proposed in this utility model;
[0019] Figure 2 This is a partial structural diagram of a grafting point fixing device for citrus fruit clustering proposed in this utility model;
[0020] Figure 3 This utility model proposes a grafting point fixing device for citrus fruit clusters. Figure 2 Enlarged structural diagram at point A;
[0021] Figure 4 This is a schematic diagram of the anti-slip strip structure of a grafting point fixing device for citrus fruit bunching proposed in this utility model.
[0022] In the figure: 1. First housing; 2. Second housing; 3. Floating plate; 31. Adjusting plate; 4. Anti-slip strip; 5. Needle; 6. Fastening groove; 7. Buckle; 8. Locking groove; 9. Support bar. Detailed Implementation
[0023] 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.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Example:
[0026] Reference Figures 1-4 A grafting point fixing device for citrus fruit clustering includes a first shell 1 and a second shell 2. A floating plate 3 is provided inside both the first shell 1 and the second shell 2. The floating plate 3 is made of a flexible material, such as silicone or soft plastic. The flexible material of the plate 3 can wrap around the grafting point to protect it. The floating plate 3 includes at least two adjusting plates 31. The two adjusting plates 31 are 1.5cm away from the symmetry line L of the floating plate 3, so that the two adjusting plates 31 are far away from the grafting point, avoiding the grafting point from being affected by unstable factors and improving the grafting success rate.
[0027] One of the adjusting plates 31 is equipped with anti-slip strips 4. Multiple sets of anti-slip strips 4 are arranged in an alternating pattern to form a diamond shape. In this application, the preferred number of anti-slip strips 4 is 10 sets, arranged in a spiral pattern to form multiple closed diamond shapes, thereby increasing the friction between the adjusting plate 31 and the scion. The height of the anti-slip strips 4 ranges from 0.3 to 0.5 mm, and in this application, the preferred height is 0.4 mm. This allows the 0.4 mm anti-slip strips 4 to press against the surface of the scion bark, thus... The bark surface of the scion forms an indentation that fits the anti-slip strip 4, which can prevent damage to the scion, maintain the normal growth of the scion and the healing of the grafting point. When the anti-slip strip 4 is in contact with the surface of the scion, the deformation range of the anti-slip strip 4 is 10-15%. The preferred deformation of the anti-slip strip 4 in this application is 15%, that is, the maximum deformation of the anti-slip strip 4 does not exceed 15% of its own. When the adjusting plate 31 clamps the scion, the anti-slip strip 4 is pressed into the bark surface of the scion, thereby increasing the friction and avoiding the problem of the scion moving or falling off due to strong winds.
[0028] Another adjusting plate 31 is fixedly installed with needles 5. Multiple sets of needles 5 are arranged in a ring at equal intervals on the adjusting plate 31. In this application, the preferred number of needles 5 is 28 sets. Each second clamping plate 32 is provided with two rows of needles 5, with 7 needles 5 in each row. This facilitates the needles 5 to penetrate the rootstock and improve the stability of the fixing device. When the two adjusting plates 31 clamp the rootstock, the needles 5 are embedded in the rootstock. The conical surface of the needles 5 is provided with a fastening groove 6. When the needles 5 penetrate the rootstock, the fastening groove 6 is embedded in the bark surface of the rootstock. The angle between the axis of the needles 5 and the axis of the adjusting plate 31 is in the range of 25-35 degrees. In this application, the preferred angle is 30 degrees. The 30-degree tilt angle facilitates the needles 5 to penetrate the bark surface of the rootstock, thereby facilitating the fixing device to be fixed to the rootstock and avoiding the problem of the fixing device moving due to branches in windy weather.
[0029] Specifically, through the combined use of anti-slip strip 4 and needle 5, the rhomboid anti-slip strip 4 effectively increases the friction between the graft and the scion. At the same time, after the anti-slip strip 4 is pressed against the bark surface of the scion, an indentation is formed on the bark surface of the scion. The anti-slip strip 4 is embedded in the indentation, changing the radial clamping of the traditional clamp to circumferential clamping, thereby resisting the lateral shearing force brought by strong winds and making the grafting point of the scion and rootstock more stable. After the needle 5 is inserted into the bark surface of the rootstock, it effectively improves the pull-out resistance and avoids the problem of unstable grafting of the scion and rootstock caused by the displacement of the fixing device after the branches are twisted due to the influence of strong winds.
[0030] Both the first shell 1 and the second shell 2 are provided with support bars 9. The support bars 9 abut against the floating plate 3 and the shell respectively. The support bars 9 include a positioning frame fixedly installed on the shell. A fixing bar is slidably installed in the positioning frame. A spring is provided in the positioning frame. The two ends of the spring abut against the shell and the support bars 9 respectively, so that the floating plate 3 and the adjusting plate 31 provide a stable support effect, so that they can wrap the rootstock and scion and protect the grafting point from being affected. The first shell 1 is fixedly installed with buckles 7. The second shell 2 has locking grooves 8 arranged at equal intervals. When the first shell 1 and the second shell 2 are close together, the buckles 7 and the locking grooves 8 can be engaged. After the buckles 7 and the locking grooves 8 are engaged, the first shell 1 and the second shell 2 are fixed. The floating plate 3 and the adjusting plate 31 clamp and fix the rootstock and scion, thereby improving the stability of the fixing device and reducing the impact of strong winds on the grafting point.
[0031] In this invention, the floating plate 3 is first placed at the grafting point between the rootstock and scion. After pushing the first housing 1 and the second housing 2, the buckle 7 and the locking groove 8 are engaged. Then, the first housing 1 and the second housing 2 are pushed to reduce the distance between the two housings until significant resistance is encountered. At the same time, the support bar 9 presses the floating plate 3 to tightly wrap the grafting point, while the anti-slip strip 4 is pressed by the adjusting plate 31 to press the bark surface of the scion and embed the anti-slip strip 4 into the indentation on the surface of the scion, increasing friction and thus improving the stability of grafting after the fixing device is installed. At the same time, the needle 5 is pressed by the adjusting plate 31 and pierces the bark surface of the rootstock, so that the barbed needle 5 cooperates with the rootstock, thereby increasing tensile strength and avoiding the problem of the fixing device falling off due to strong winds.
[0032] 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 grafting point fixing device for citrus fruit clustering, comprising a first housing (1) and a second housing (2), characterized in that, Also includes: A floating plate (3) is disposed within the first housing (1) and the second housing (2). The floating plate (3) includes at least two adjusting plates (31), one of which is provided with an anti-slip strip (4) and the other is provided with a needle (5). When the first shell (1) and the second shell (2) are fastened together, the anti-slip strip (4) is attached to the surface of the scion and the needle (5) is embedded in the rootstock.
2. The grafting point fixing device for citrus fruit clusters according to claim 1, characterized in that, The anti-slip strip (4) is provided in multiple sets, and the multiple sets of anti-slip strips (4) are arranged in an alternating pattern to form a diamond pattern.
3. The grafting point fixing device for citrus fruit clusters according to claim 2, characterized in that, The height of the anti-slip strip (4) is 0.3-0.5 mm, and when the anti-slip strip (4) is in contact with the surface of the scion, the deformation of the anti-slip strip (4) is 10-15%.
4. The grafting point fixing device for citrus fruit clusters according to claim 1, characterized in that, The needle (5) has a fastening groove (6) on its conical surface. When the needle (5) is inserted into the rootstock, the fastening groove (6) is embedded in the surface of the rootstock bark.
5. A grafting point fixing device for citrus fruit clusters according to claim 2, characterized in that, The angle between the axis of the needle (5) and the axis of the adjusting plate (31) is 25-35 degrees.
6. The grafting point fixing device for citrus fruit clusters according to claim 1, characterized in that, The first housing (1) and the second housing (2) are each provided with a support bar (9), and a spring is provided on the support bar (9). The two ends of the spring abut against the support bar (9) and the housing respectively.
7. A grafting point fixing device for citrus fruit clusters according to claim 1, characterized in that, A buckle (7) is fixedly installed on the first housing (1), and a locking groove (8) is provided on the second housing (2) at equal intervals. When the first housing (1) and the second housing (2) are close together, the buckle (7) and the locking groove (8) are engaged.