Agarwood grafting fixing structure

Abstract

The utility model relates to the technical field of cultivation tools, and specifically relates to a larch tree grafting fixing structure, including flexible restraint cover, sectional independent air bag, inflation valve and fixed assembly, flexible restraint cover is used for wrapping the junction of stock and scion, sectional independent air bag is set up in the inside of flexible restraint cover along the axial direction, sectional independent air bag is multiple independent sealing structure, and different regions of junction are corresponded respectively, inflation valve sets up at the outside of flexible restraint cover, and every inflation valve and sectional independent air bag one -to -one correspondence intercommunication are used for adjusting the inflation of sectional independent air bag to change the pressure of corresponding region, fixed assembly sets up at both ends of flexible restraint cover, and is used for fixing flexible restraint cover on seedling, the utility model can adapt to the irregular shape of larch tree grafting part and adjust local pressure, and the fitting effect of scion and stock is improved.

Description

Technical Field

[0001] This utility model relates to the field of cultivation tools, specifically to a grafting and fixing structure for agarwood. Background Technology

[0002] Agarwood, a precious spice and traditional Chinese medicine, relies heavily on grafting as a key technique for the efficient propagation of superior varieties. The stability and fixation of the grafting site directly impacts callus formation and the success rate of healing. Traditional grafting methods often use plastic film rolls for binding and fixing, which, while convenient, are disposable and wasteful of resources. Furthermore, the rigidity of the film cannot accommodate the irregular shapes of the scion and rootstock (e.g., the scion's base diameter is smaller than the rootstock's ground diameter, or the cut is slanted), resulting in uneven pressure distribution at the graft union. Insufficient pressure on the contact surface prevents close contact, hindering callus formation, while excessive pressure on the non-contact areas damages the phloem, reducing the survival rate.

[0003] Existing improvements, such as the "A Grafting Device for Agarwood Seedlings" disclosed in patent CN202420673041.6, employ a flexible sleeve one, a flexible sleeve two, and a Velcro binding structure. While overall inflation provides cushioning, it still fails to address the issue of localized pressure regulation. The flexible sleeve is designed as a hollow cavity, and the uniform binding force of the Velcro cannot precisely apply pressure to the uneven gaps at the grafting site (such as the gap between the bottom of the scion and the cut of the rootstock). The uneven pressure at the joint remains, resulting in a lack of significant improvement in the grafting healing success rate.

[0004] Therefore, there is an urgent need for a fixing structure that can adapt to the irregular shape of the grafting site of agarwood and adjust the local pressure to ensure uniform pressure at the junction of the scion and rootstock, thereby improving the grafting healing rate and seedling survival rate. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a grafting and fixing structure for agarwood to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A grafting fixation structure for agarwood includes a flexible binding sleeve, segmented independent air bladders, inflation valves, and fixing components. The flexible binding sleeve is used to wrap the joint between the rootstock and the scion. The segmented independent air bladders are axially arranged on the inner side of the flexible binding sleeve, and each segmented independent air bladder is a multiple independent sealing structure, corresponding to different areas of the joint. The inflation valves are located on the outer side of the flexible binding sleeve, and each inflation valve is connected to one of the segmented independent air bladders to adjust the inflation volume of the segmented independent air bladders to change the pressure in the corresponding area. The fixing components are located at both ends of the flexible binding sleeve to fix the flexible binding sleeve to the seedling.

[0008] As a further improvement of this utility model, the flexible restraint sleeve is made of transparent silicone.

[0009] As a further embodiment of this utility model: wherein the segmented independent airbags include a first airbag located in the middle of the flexible binding sleeve and a second airbag and a third airbag at both ends of the flexible binding sleeve; the first airbag is used to wrap the core contact area between the bottom of the scion and the cut of the rootstock; the second airbag is used to wrap the middle of the scion; and the third airbag is used to wrap the upper part of the rootstock.

[0010] As a further improvement of this utility model, the flexible restraint sleeve is provided with a transparent observation window in the middle.

[0011] As a further improvement of this utility model, the inflation valve is a push-button inflation valve.

[0012] As a further improvement of this utility model, the fixing component is a buckle.

[0013] By adopting the above technical solution, this utility model will have the following beneficial effects:

[0014] A flexible binding sleeve is used to wrap the graft union between the rootstock and scion. Its flexible material adapts to the natural shape of the seedling, avoiding rigid compression that could damage the phloem. It also creates a relatively enclosed space, reducing interference from external environmental factors (such as rain and pests) on the grafting site. Multiple independently sealed airbags, arranged axially, correspond to different areas such as the bottom of the scion and the rootstock incision, the middle of the scion, and the upper part of the rootstock. This allows for independent adjustment of localized pressure to address irregular shapes at the graft union (such as differences in diameter between the scion and rootstock, or beveled incisions), overcoming the shortcomings of traditional integral structures where "pressure is uniform but the fit is not tight." Each airbag corresponds to an inflation valve, allowing precise control of pressure in the corresponding area by adjusting the inflation volume—increasing pressure in the core contact area (the scion-rootstock junction) to ensure tight contact and promote callus formation; and appropriately reducing pressure in other areas to avoid excessive compression that could damage the seedling tissue. Fixing components at both ends of the binding sleeve securely fix it to the seedling, preventing axial slippage and ensuring that each airbag always corresponds to the designated area, maintaining effective pressure regulation.

[0015] Compared with existing technologies, this invention improves the adaptability and precision of grafting fixation through a combination of flexible adaptation, segmented pressure adjustment and precise fixation, which is conducive to improving the fit between the scion and the rootstock and increasing the success rate of grafting healing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of the agarwood grafting and fixing structure described in Example 1 in its unfolded state when not in use;

[0018] Figure 2 This is a top view of the agarwood grafting and fixing structure described in Example 1 in its wrapped state during use;

[0019] Figure 3 This is a front view of the agarwood grafting and fixing structure described in Example 2 in its unfolded state.

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] 1. Flexible restraint sleeve; 2. Segmented independent airbags; 21. First airbag; 22. Second airbag; 23. Third airbag; 3. Inflation valve; 4. Fixing components; 5. Transparent observation window. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] refer to Figure 1 and Figure 2 The agarwood grafting and fixing structure in this embodiment includes a flexible binding sleeve 1, segmented independent airbags 2, an inflation valve 3, and a fixing component 4.

[0025] The flexible binding sleeve 1 is made of food-grade silicone in a cylindrical shape, with a length of 12cm and a diameter of 2cm (suitable for common specifications of agarwood rootstock with a ground diameter of 1-2cm and scion base diameter of 0.5-1cm). The silicone material has good flexibility and aging resistance, and can be repeatedly bent without breaking, while avoiding rigid compression of the phloem of the seedling.

[0026] Among them, the segmented independent airbags 2 are set on the inner side of the flexible restraint sleeve 1 (the side in contact with the seedling), and are sealed along the axial direction by a heat sealing process to form 3 independent airbags, respectively corresponding to:

[0027] First airbag 21: Located in the middle of the binding sleeve, corresponding to the junction of the scion bottom and the rootstock incision (4cm in length), it is the main pressure area (core contact area).

[0028] Second airbag 22: Located above the first airbag 21, corresponding to the middle of the scion (3cm in length).

[0029] The third airbag 23 is located below the first airbag 21, corresponding to the upper part of the rootstock (3cm in length).

[0030] Each airbag is a sealed cavity, pre-filled with a small amount of inert gas (such as nitrogen) to facilitate subsequent inflation and adjustment.

[0031] The inflation valve 3 is located on the outside of the flexible restraint sleeve 1, and each independent airbag is connected to a press-type inflation valve 3 through a silicone tube. The inflation valve 3 is made of PP material and has a built-in one-way valve structure. When pressed, air (or inert gas) is injected into the airbag, and it automatically seals when released to prevent gas leakage.

[0032] The fixing components 4 are located at both ends of the flexible binding sleeve 1 to securely fix the flexible binding sleeve 1 to the seedling and prevent it from sliding along the axial direction. Considering that the outdoor environment (rain, soil, ultraviolet rays) will quickly reduce the adhesiveness of the Velcro used in existing grafting devices, causing it to become ineffective after 3-5 uses, the fixing components 4 in this embodiment use hooks and loops to achieve quick fixing through spring force. It can withstand a tensile force of ≥50N and can be reused ≥50 times, which is superior to the durability of traditional Velcro.

[0033] Example 2

[0034] refer to Figure 3 The difference between the agarwood grafting fixation structure in this embodiment and that in Embodiment 1 is that the flexible binding sleeve 1 is a double-layer composite structure: the outer layer is a semi-transparent silicone (providing structural strength), and the inner layer is a transparent silicone (contacting the seedling to reduce friction damage). In the middle of the flexible binding sleeve 1 (corresponding to the core contact area between the scion and the rootstock), the outer semi-transparent silicone is replaced with a fully transparent PVC board (or transparent silicone), forming a transparent observation window 5 that runs through the outer layer to the inner layer. The first airbag 21 is located on the inner side of the inner transparent silicone (i.e., the side that directly contacts the seedling), and is made of transparent food-grade silicone (0.5mm thick, balancing flexibility and transparency). The axial position of the first airbag 21 completely coincides with the transparent observation window 5.

[0035] When in use, growers can directly observe the healing of the scion and rootstock through the transparent observation window 5 without removing the binding sleeve (to avoid damaging the sealed environment). The inflation status of the first airbag 21 can also be judged in real time through the transparent observation window 5 (such as whether it completely fits the gap), making it easy to adjust the inflation volume in a timely manner.

[0036] The workflow of this utility model is as follows:

[0037] (1) Install the binding sleeve: unfold the flexible binding sleeve 1 and put it on the junction of the agarwood rootstock and the scion. Adjust the position so that the first air bag 21 completely covers the core contact area between the bottom of the scion and the cut of the rootstock, the second air bag 22 corresponds to the middle of the scion, and the third air bag 23 corresponds to the upper part of the rootstock.

[0038] (2) Fixing the binding sleeve: Fasten the buckles (fixing components 4) at both ends of the flexible binding sleeve 1 to ensure that the flexible binding sleeve 1 wraps the seedling, but without applying excessive pressure (at this time the airbag is in a state of incomplete inflation).

[0039] (3) Adjust local pressure:

[0040] Scion bottom and rootstock incision: By pressing the corresponding inflation valve 3, air is injected into the first air bladder 21, causing the first air bladder 21 to expand until it is completely in contact with the scion and rootstock (pressure approximately 0.15 MPa, judged by the degree of air bladder expansion).

[0041] Middle of the scion: Press the corresponding inflation valve 3 to slightly inflate the second air bladder 22 (pressure approximately 0.08 MPa) to fix the scion position;

[0042] Upper part of the rootstock: Press the corresponding inflation valve 3 to slightly inflate the third airbag 23 (pressure about 0.03MPa) to prevent the restraint sleeve from slipping down.

[0043] (4) Follow-up observation: Observe the healing status regularly through the transparent observation window 5 (e.g., once a week). If the pressure in the core bonding area is insufficient (e.g., the first air bladder 21 is loose), press the inflation valve 3 again to replenish the gas. If the pressure is too high (e.g., indentations appear on the seedling bark), release a small amount of gas through the deflation button on the inflation valve 3.

[0044] 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 and fixing structure for agarwood, characterized in that, It includes a flexible restraint sleeve (1), segmented independent airbags (2), an inflation valve (3), and a fixation component (4); The flexible binding sleeve (1) is used to wrap the joint between the rootstock and the scion; The segmented independent airbag (2) is arranged axially on the inner side of the flexible restraint sleeve (1). The segmented independent airbag (2) consists of multiple independent sealing structures, each corresponding to a different area of ​​the joint. The inflation valve (3) is located on the outside of the flexible restraint sleeve (1). Each inflation valve (3) is connected to one of the segmented independent airbags (2) to adjust the inflation amount of the segmented independent airbags (2) to change the pressure of the corresponding area. The fixing component (4) is disposed at both ends of the flexible binding sleeve (1) and is used to fix the flexible binding sleeve (1) to the seedling.

2. The agarwood grafting fixing structure according to claim 1, characterized in that, The flexible restraint sleeve (1) is made of transparent silicone.

3. The agarwood grafting fixing structure according to claim 1, characterized in that, The segmented independent airbag (2) includes a first airbag (21) located in the middle of the flexible binding sleeve (1) and a second airbag (22) and a third airbag (23) at both ends of the flexible binding sleeve (1); the first airbag (21) is used to wrap the core contact area between the bottom of the scion and the cut of the rootstock; the second airbag (22) is used to wrap the middle of the scion; and the third airbag (23) is used to wrap the upper part of the rootstock.

4. The agarwood grafting fixing structure according to claim 3, characterized in that, The flexible restraint sleeve (1) has a transparent observation window (5) in the middle.

5. The agarwood grafting fixing structure according to claim 1, characterized in that, The inflation valve (3) is a press-type inflation valve (3).

6. The agarwood grafting fixing structure according to claim 1, characterized in that, The fastening component (4) is a buckle.

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