A forestry seedling grafting stabilizing device
By combining a half-sleeve, a tightening band, and a twisting rod, the problem of scions loosening under the impact of wind and rain is solved, achieving stable fixation of the scions and improving the grafting survival rate and operational efficiency.
Patent Information
- Application Number
- CN202522661287.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-16
AI Technical Summary
In existing technologies, after grafting forestry seedlings, the scion is easily shaken by wind and rain, causing the plastic wrapping structure to loosen or break, affecting callus formation and nutrient transport channels, and reducing the grafting survival rate.
A combination device consisting of a half-sleeve, a tightening band, and a torsion bar is used to fix the scion by using the clamping mechanism of the tightening band and the positioning mechanism of the torsion bar. Combined with the insertion post and the elevation angle fixing mechanism, it can achieve multi-degree-of-freedom adjustment and stabilization of the scion.
It effectively resists scion swinging, reduces the risk of graft interface loosening and displacement, improves grafting stability and survival rate, and enhances the adaptability and ease of operation of the device.
Smart Images
Figure CN224924295U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of seedling grafting technology, specifically relating to a forestry seedling grafting stabilization device. Background Technology
[0002] Currently, after grafting forestry seedlings, the common practice is to wrap and fix the graft union with plastic wrap. While this method can maintain the humidity of the graft union, it has significant drawbacks: when the grafting point is located on a branch tip, the newly grafted scion will continuously sway under the influence of natural external forces such as wind and rain. This swaying is transmitted through the scion to the graft union, causing the plastic wrap to be subjected to repeated pulling and torsional forces, resulting in the wrapping layer gradually loosening or even breaking. At the same time, the inertial force generated by the scion during the swaying process will continue to act on the graft interface, which has not yet fully healed. This can easily cause the cambium layer of the scion and the rootstock to shift, affecting not only the formation of callus tissue and the establishment of nutrient transport channels, but also, in severe cases, causing the scion and rootstock to separate, resulting in grafting failure and reducing the grafting survival rate. Utility Model Content
[0003] The purpose of this invention is to provide a grafting and stabilizing device for forestry seedlings, which can solve the above-mentioned technical problems.
[0004] The specific technical solution adopted by this utility model is as follows: This utility model provides a stabilizing device for grafting forest seedlings, including a half sleeve, a tightening band, and a torsion bar. The tightening band is set on the half sleeve, and the torsion bar is provided with a positioning mechanism for engaging with the scion. An outward expansion is integrally provided on the upper side of the half sleeve, and an elevation angle fixing mechanism that cooperates with the torsion bar is provided on the outward expansion. The two sides of the half sleeve are fixed with ear plates. One of the ear plates has an initial through hole for the tightening strap to pass through. One side of the tightening strap is fixed with a stop part that is locked with the initial through hole, and the other side passes through a tightening through hole. The tightening through hole is opened on the other ear plate. A locking mechanism that cooperates with the tightening strap is provided in the tightening through hole.
[0005] Preferably, the tripping mechanism includes a stop plate, a tripping strip, and multiple insert holes. The tripping strip is triangular and fits into the inner sleeve of the insert hole. The inclined surface of the tripping strip corresponds to the forward direction when the tightening strap is inserted. The tripping strip is fixed on the inner side of the tightening through hole and is located on the side close to the half sleeve. The baffle and the tripping strip are symmetrically arranged and fixed on the inner side of the tightening hole, and the free end of the baffle abuts against the side of the tightening strip.
[0006] Preferably, the lower side of the torsion bar is fixed with a plug post, which is plugged into multiple plug holes. The multiple plug holes are evenly distributed circumferentially on the support arc plate, and the support arc plate is fixed on the upper side of the outer expansion sleeve. A support ring is attached to the support arc plate, and the support ring is fixed on the upper side of the plug post. Both the plug post and the plug holes are polygonal.
[0007] Preferably, the positioning mechanism includes a rigid post and two open retaining rings. The two open retaining rings are respectively fixed at both ends of the rigid post. The rigid post is fixed on the torsion bar. The two open retaining rings are locked onto the scion from top to bottom, and the radius of the lower open retaining ring is larger than that of the upper one.
[0008] Preferably, the elevation angle fixing mechanism includes a diagonal tie bar and a tensile arc plate. The upper end of the diagonal tie bar is fixed on the upper side of the rigid column and is symmetrically arranged with the aforementioned open retaining ring. The outer periphery of the tensile arc plate is provided with a plurality of circumferentially distributed open retaining holes, and the tensile arc plate is fixed on the lower side of the outer periphery of the outer expansion sleeve. The open retaining holes are radially corresponding to the insertion holes. The opening side of the open retaining holes is clearance-fitted with the diagonal tie bar, and the inner radius of the open retaining holes is set to 1.5 times the radius of the diagonal tie bar. Multiple outward-expanding cones are fixed on the diagonal tie bar, and the outward-expanding cones are matched with the inner side of the opening card hole.
[0009] Preferably, the spacing between two adjacent expanding cones is set to be consistent with the thickness of the tensile arc plate, and the contracting end of the expanding cone corresponds to the bottom surface of the tensile arc plate on the diagonal tie.
[0010] The beneficial effects are: 1. This utility model, through the tight fit between the half-sleeve and the tightening band, can firmly fix the device to the rootstock. Simultaneously, the positioning mechanism on the torsion bar, namely two open retaining rings, reliably clamps the scion from both above and below, thus forming a stable integrated structure with the scion and rootstock. This design effectively resists scion swaying caused by natural factors such as wind and rain, significantly reducing the risk of grafting interface loosening or cambium misalignment due to swaying inertia. It fundamentally solves the problems of easy loosening and breakage of traditional plastic wrap fixing methods, thereby greatly improving grafting stability and survival rate.
[0011] 2. This utility model, through the multi-angle cooperation of the insertion post and the circumferentially distributed insertion holes, and the flexible locking of the diagonal tie bar and the different opening holes in the elevation angle fixing mechanism, enables the device to be precisely adjusted and fixed according to the actual growth direction of the scion and the grafting angle. This multi-degree-of-freedom adjustment function significantly improves the adaptability of the device to different grafting scenarios and enhances its practicality.
[0012] Meanwhile, the clamping mechanism of the tightening strap enables convenient locking and releasing, and the tough design of the open retaining ring also facilitates manual assembly and disassembly, making the installation and separation of the entire device simple and quick. This not only improves the efficiency of grafting operations but also facilitates subsequent recycling and reuse, thus enhancing the overall application effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the assembly structure of the rootstock and scion of this utility model; Figure 2 This is a schematic diagram of the explosion distribution structure of this utility model; Figure 3 This is a schematic diagram of the half-sleeve structure of this utility model; Figure 4 This is a schematic diagram of the structure of this utility model where one half is fitted onto the other side.
[0014] The attached diagram lists the components represented by each number as follows: 1. Half sleeve; 11. Ear plate; 11a. Initial perforation; 11b. Tightening through hole; 12. Stop plate; 13. Buckle strip; 2. Outer expansion sleeve; 21. Tensile arc plate; 21a. Opening buckle hole; 3. Support arc plate; 31. Insertion hole; 4. Tightening band; 41. Stop part; 42. Insertion hole; 5. Torsion bar; 51. Insertion post; 51a. Support ring; 52. Rigid post; 53. Opening buckle ring; 6. Diagonal tie bar; 61. Outer expansion cone. Detailed Implementation
[0015] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0016] like Figure 1-4 As shown, a forestry seedling grafting stabilization device includes a half-sleeve 1, a tightening band 4, and a torsion bar 5. The tightening band 4 is disposed on the half-sleeve 1, and the torsion bar 5 is provided with a positioning mechanism for engaging with the scion. An outer expansion sleeve 2 is integrally disposed on the upper side of the half-sleeve 1, and an elevation angle fixing mechanism that cooperates with the torsion bar 5 is disposed on the outer expansion sleeve 2. The half-sleeve 1 is a semi-circular ring. The two sides of the half sleeve 1 are fixed with ear plates 11. One ear plate 11 has an initial through hole 11a for the tightening strap 4 to pass through. One side of the tightening strap 4 is fixed with a stop part 41 that is engaged with the initial through hole 11a, and the other side passes through the tightening through hole 11b. The tightening through hole 11b is opened on the other ear plate 11. The tightening through hole 11b is provided with a clamping mechanism that cooperates with the tightening strap 4.
[0017] As an optional implementation, the tripping mechanism includes a stop plate 12, a tripping strip 13 and a plurality of insert holes 42. The tripping strip 13 is triangular and fits into the insert hole 42. The inclined surface on the tripping strip 13 corresponds to the forward direction when the tightening strap 4 is inserted. The tripping strip 13 is fixed on the inner side of the tightening through hole 11b and is located on the side close to the half sleeve 1. The baffle plate 12 and the tripwire 13 are symmetrically arranged and fixed on the inner side of the tightening hole 11b. The free end of the baffle plate 12 abuts against the side of the tightening band 4. This allows the tripwire 13 to be inserted into the locking hole 42 on the tightening band 4 to prevent it from detaching. Then, when the tightening band 4 is swayed by natural factors, the baffle plate 12 is used to prevent the locking hole 42 from detaching from the tripwire 13. At the same time, it can also handle the subsequent pushing of the tightening band 4 to disassemble the tightening band 4.
[0018] See attached document Figure 2 and attached Figure 3 The lower side of the torsion bar 5 is fixed with a plug post 51, which is plugged into multiple plug holes 31. The multiple plug holes 31 are evenly distributed around the support arc plate 3, which is fixed on the upper side of the outer expansion sleeve 2. A support ring 51a is attached to the support arc plate 3, which is fixed on the upper side of the plug post 51. Both the plug post 51 and the plug holes 31 are polygonal. This not only limits the angle of the torsion bar 5 after plugging, but also allows the plug post 51 to have multiple angle adjustment effects, so as to deal with the position adjustment effect after the half sleeve 1 and the tightening band 4 are installed on the rootstock. At the same time, the multiple plug holes 31 around the periphery can not only stabilize the seedling scion at different positions, but also stabilize two or three seedling scions around the periphery. The torsion bar 5 is made of rubber and has the shape shown in the attached diagram. In its free state, it is bent.
[0019] Furthermore, the positioning mechanism includes a rigid post 52 and two open retaining rings 53. The two open retaining rings 53 are respectively fixed at both ends of the rigid post 52, which is fixed on the torsion bar 5. The two open retaining rings 53 are locked onto the scion from top to bottom, with the radius of the lower open retaining ring 53 being larger than that of the upper one. This allows the two open retaining rings 53 to correspond to the difference in the upper and lower radii of the scion and to engage accordingly. The open retaining rings 53 are made of a tough plastic material, allowing the user to open the two free ends of the open retaining rings 53 to engage the scion. They can also be disassembled and separated after use.
[0020] See attached document Figure 2 and attached Figure 4The elevation angle fixing mechanism includes a diagonal tie bar 6 and a tensile arc plate 21. The upper end of the diagonal tie bar 6 is fixed on the upper side of the rigid column 52 and is symmetrically arranged with the aforementioned open retaining ring 53. The outer periphery of the tensile arc plate 21 is provided with a plurality of circumferentially distributed open retaining holes 21a, and the tensile arc plate 21 is fixed on the lower side of the outer periphery of the outer expansion sleeve 2. The open retaining holes 21a are radially corresponding to the insertion holes 31. The open side of the open retaining holes 21a is clearance-fitted with the diagonal tie bar 6, and the inner radius of the open retaining holes 21a is set to 1.5 times the radius of the diagonal tie bar 6. Multiple outwardly expanding cones 61 are fixed on the diagonal tie rod 6. The outwardly expanding cones 61 match the inner side of the opening locking hole 21a. This makes it easy to handle the diagonal tie rod 6 being inserted into the opening locking hole 21a. Then, the outwardly expanding cones 61 form upper and lower locking while preventing the diagonal tie rod 6 from detaching from the opening locking hole. The half-sleeve 1 and its integrated tensile arc plate 21, outer expansion sleeve 2 and supporting arc plate 3 are all integrally injection molded from plastic material.
[0021] Furthermore, the spacing between two adjacent expanding cones 61 is set to be consistent with the thickness of the tensile arc plate 21. The contraction end of the expanding cone 61 corresponds to the bottom surface of the tensile arc plate 21 on the tie rod 6. This ensures that when the expanding cone 61 on the tie rod 6 engages with the opening locking hole 21a, it restricts the tie rod 6 vertically, thereby positioning the elevation angle generated by the rigid column 52 being pulled by the tie rod 6.
[0022] Using the above structure, during installation, firstly, the half sleeve 1 is attached to the predetermined position of the rootstock, so that one end of the tightening strap 4 with the stop part 41 passes through the initial through hole 11a and is initially limited. Then, the free end of the tightening strap 4 passes through the tightening through hole 11b on the other ear plate 11 and the tightening strap 4 is continuously tightened to tightly wrap and fix the rootstock. At this time, the locking hole 42 on the tightening strap 4 interacts with the inclined surface of the internal clamping strip 13 when passing through the tightening through hole 11b, until the locking hole 42 passes through the clamping strip 13 and automatically engages and locks under the action of its triangular structure. At the same time, the baffle plate 12 abuts against the side of the tightening strap 4 to prevent it from loosening, thus completing the initial fixation of the rootstock side. Then, according to the growth angle of the scion, select the corresponding insertion hole 31 on the support arc plate 3, insert the insertion post 51 at the lower end of the torsion bar 5 into the selected insertion hole 31, and achieve support by the overlap of the support ring 51a with the support arc plate 3, and use polygonal insertion to prevent rotation. Next, open the free ends of the two open retaining rings 53 and attach the upper and lower open retaining rings 53 to the corresponding positions on the scion. Use their tough material to achieve a tight fixation and adapt to the natural taper of the scion through the larger radius retaining ring on the lower side. Finally, according to the required elevation angle of the scion, the diagonal tie rod 6 is tightened and inserted into the corresponding opening hole 21a on the tensile arc plate 21, so that the outward expansion cone 61 on the diagonal tie rod 6 passes over the edge of the opening hole 21a to form a clamp. The stable positioning is achieved by using the matching relationship between the spacing of the outward expansion cone 61 and the thickness of the tensile arc plate 21, thereby completing the angle fixation and overall reinforcement of the scion.
[0023] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. This application is mainly used to protect mechanical devices. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field and relevant national standards.
Claims
1. A grafting and stabilizing device for forestry seedlings, characterized in that: It includes a half sleeve (1), a tightening band (4) and a twisted rod (5). The tightening band (4) is set on the half sleeve (1). The twisted rod (5) is provided with a positioning mechanism that engages with the scion. The upper side of the half sleeve (1) is integrally provided with an outward expansion part. The outward expansion part is provided with an elevation angle fixing mechanism that cooperates with the twisted rod (5). The two sides of the half sleeve (1) are fixed with ear plates (11). One of the ear plates (11) has an initial through hole (11a) for the tightening strap (4) to pass through. One side of the tightening strap (4) is fixed with a stop (41) that is caught in the initial through hole (11a), and the other side passes through a tightening through hole (11b). The tightening through hole (11b) is opened on the other ear plate (11). The tightening through hole (11b) is provided with a catch mechanism that cooperates with the tightening strap (4).
2. The forestry seedling grafting stabilization device according to claim 1, characterized in that: The tripping mechanism includes a baffle plate (12), a tripping strip (13) and multiple insert holes (42). The tripping strip (13) is triangular and fits into the insert hole (42). The inclined surface on the tripping strip (13) corresponds to the forward direction when the tightening strap (4) is inserted. The tripping strip (13) is fixed on the inner side of the tightening through hole (11b) and is located on the side close to the half sleeve (1). The baffle (12) and the tripping strip (13) are symmetrically arranged and fixed on the inner side of the tightening through hole (11b), and the free end of the baffle (12) abuts against the side of the tightening band (4).
3. The forestry seedling grafting stabilization device according to claim 2, characterized in that: The lower side of the torsion bar (5) is fixed with a plug post (51), which is plugged into multiple plug holes (31). The multiple plug holes (31) are evenly distributed on the support arc plate (3) in the circumferential direction. The support arc plate (3) is fixed on the upper side of the outer expansion sleeve (2). A support ring (51a) is attached to the support arc plate (3), and the support ring (51a) is fixed on the upper side of the plug post (51). The plug post (51) and the plug hole (31) are both polygonal.
4. The forestry seedling grafting stabilization device according to claim 3, characterized in that: The positioning mechanism includes a rigid post (52) and two open retaining rings (53). The two open retaining rings (53) are respectively fixed at both ends of the rigid post (52). The rigid post (52) is fixed on the torsion bar (5). The two open retaining rings (53) are locked onto the scion from top to bottom, and the radius of the lower open retaining ring (53) is greater than that of the upper one.
5. The forestry seedling grafting stabilization device according to claim 4, characterized in that: The elevation angle fixing mechanism includes a diagonal tie bar (6) and a tensile arc plate (21). The upper end of the diagonal tie bar (6) is fixed on the upper side of the rigid column (52) and is symmetrically arranged with the above-mentioned open retaining ring (53). The outer periphery of the tensile arc plate (21) is provided with a plurality of circumferentially distributed open retaining holes (21a), and the tensile arc plate (21) is fixed on the lower side of the outer periphery of the outer expansion sleeve (2). The open retaining holes (21a) are radially corresponding to the insertion hole (31). The opening side of the open retaining hole (21a) is clearance-fitted with the diagonal tie bar (6), and the inner radius of the open retaining hole (21a) is set to 1.5 times the radius of the diagonal tie bar (6). Multiple outward-expanding cones (61) are fixed on the diagonal tie bar (6), and the outward-expanding cones (61) are matched with the inner side of the opening hole (21a).
6. The forestry seedling grafting stabilization device according to claim 5, characterized in that: The spacing between two adjacent expansion cones (61) is set to be consistent with the thickness of the tensile arc plate (21), and the contraction end of the expansion cone (61) corresponds to the bottom surface of the tensile arc plate (21) on the diagonal tie bar (6).