Scion supporting mechanism and forest seedling raising and grafting device

Abstract

The invention relates to the field of seedling raising equipment, in particular to a scion supporting mechanism and a forest seedling raising and grafting device. The supporting mechanism comprises a rack, a mounting frame and a control mechanism; the number of the mounting frames is two, the two mounting frames are both arranged on the rack, and the rack is provided with a lifting assembly used for controlling the mounting frames to ascend and descend. Two clamping assemblies are arranged on the mounting frame, each clamping assembly comprises two movable rods, clamping blocks used for clamping scions are arranged on the movable rods, and the extending directions of the movable rods of the two clamping assemblies are perpendicular to each other; the mounting frame is provided with a linear driving assembly used for controlling the two movable rods of the same clamping assembly to move synchronously. The control mechanism is used for controlling the two movable rods of the same clamping assembly to get close to each other or get away from each other. According to the device, the function that the height of the scion is adjusted by controlling the two mounting frames to ascend and descend on the rack through the lifting assembly is achieved, and the technical problem that scion death is caused by inserting angle deviation due to instable scion supporting of existing equipment is solved.

Description

Technical Field

[0001] This invention relates to the field of seedling equipment, specifically to a scion support mechanism and a grafting device for forest tree seedlings. Background Technology

[0002] Grafting is a common technique in the production of vegetables, fruit trees, and other crops. It involves grafting scions of superior varieties onto adaptable rootstocks to improve crop resistance (such as disease resistance, cold resistance, and drought resistance), enhance quality, and increase yield. One method, cleft grafting, involves cutting the rootstock at a certain height above the ground, splitting it vertically from the center, selecting a scion with 2-3 buds, shaping the lower end into a wedge, inserting it into the cleft of the rootstock, aligning the cambium layers, and binding it to maintain moisture. However, existing automated grafting equipment inserts the scion into the cleft by pulling it along. This pulling process easily damages the rootstock, affecting the quality of the graft.

[0003] To address this, Chinese Patent CN115997567B discloses an agricultural seedling grafting device. The device inserts a scion into a scion processing chamber through an opening at the top of the machine. A gripper holds and fixes the scion, and a cutting component cuts off the lower end of the scion. A first telescopic cylinder moves the scion downwards, while a second telescopic cylinder moves horizontally to adjust the scion's position, thus inserting the scion into a slit in the rootstock. This method offers good scion cutting efficiency and higher productivity. Furthermore, the coordination of the first and second telescopic cylinders ensures accurate insertion of the scion into the rootstock slit, resulting in higher grafting quality.

[0004] However, the aforementioned patents and most existing grafting equipment rely solely on grippers to hold the scion during grafting, failing to provide stable support. This results in the scion tilting during insertion, affecting the grafting angle. If the cambium layers of the scion and rootstock become misaligned, callus tissue cannot form, and the scion gradually withers due to lack of moisture and nutrients from the rootstock. Even with partial contact, if the contact area is too small, the callus tissue cannot connect the two, ultimately leading to scion death due to "nutrient transport interruption." Summary of the Invention

[0005] To address the aforementioned issues, a scion support mechanism and a forest tree seedling grafting device are provided. Through a frame, mounting frame, and control mechanism, the technical problem of scion death caused by unstable scion support leading to deviation in the grafting angle is solved in existing equipment.

[0006] To address the problems of existing technologies, this invention provides a scion support mechanism, including a frame, a mounting frame, and a control mechanism. Two mounting frames are provided, each mounted on the frame. The frame is equipped with a lifting assembly for controlling the raising and lowering of the mounting frames. Two sets of clamping assemblies are provided on the mounting frames, each clamping assembly including two movable rods with clamping blocks for holding the scion. The extension directions of the movable rods in the two sets of clamping assemblies are perpendicular to each other. A linear drive assembly is provided on the mounting frame for controlling the synchronous movement of the two movable rods of the same set of clamping assemblies. The control mechanism controls the two movable rods of the same set of clamping assemblies to move closer to or further apart from each other.

[0007] Preferably, each mounting bracket is equipped with four controllable gas springs, the piston rod of each controllable gas spring is connected to a push block, and the four push blocks are respectively connected to four movable rods; The mounting bracket is equipped with a limiting component to restrict the closure of the movable rod. In the initial state, the controllable gas spring provides a pushing force to the movable rod. When the limiting component is released from restricting the closure of the movable rod, the two movable rods in the same group close under the pushing force of the two controllable gas springs. After the grafting operation is completed, the air pressure of the controllable gas spring is adjusted, and the controllable gas spring provides a pulling force to the movable rod to control the movable rod to return to its original position.

[0008] Preferably, the movable rod is provided with a second guide rod and a first elastic element; the clamping block is slidably engaged with the second guide rod, and the two ends of the first elastic element are respectively connected to the clamping block and the movable rod; the movable rod is provided with a connecting component for transmission connection with the linear drive assembly; when the clamping block clamps the tassel, the clamping block is pressed and abuts against the movable rod, and the connecting component connects the movable rod and the linear drive assembly.

[0009] Preferably, the connecting assembly includes a transmission rod, an abutment block, a second elastic element, and a connecting frame; both the transmission rod and the abutment block are slidably mounted on the movable rod, the transmission rod has a first inclined surface at the end near the clamping block, the abutment block has a second inclined surface at the end near the transmission rod, and the transmission rod has a protrusion at the end away from the clamping block for pushing the abutment block to move; the two ends of the second elastic element are respectively connected to the abutment block and the movable rod; the connecting frame is connected to the linear drive assembly, and when the abutment block abuts against the connecting frame, the connecting frame drives the abutment block to move synchronously.

[0010] Preferably, the top of the abutment block is provided with a rubber pad for abutting against the connecting frame.

[0011] Preferably, the limiting component includes a latch and a third elastic element; the mounting bracket has a receiving groove for accommodating the latch and the third elastic element; both ends of the third elastic element are connected to the latch and the mounting bracket respectively; the limiting rod closes when the latch abuts against the push block; the mounting bracket has a built-in linear motor for controlling the retraction of the latch.

[0012] Preferably, the frame is connected to a top frame and a bottom frame distributed vertically; the bottom frame has a notch for the rootstock to pass through.

[0013] A grafting device for forest tree seedlings includes a scion support mechanism.

[0014] Preferably, the bottom of the base frame is provided with at least three support legs, and the bottom of the support legs is provided with casters.

[0015] Preferably, the support leg is provided with a horizontal plate, and the horizontal plate is provided with a liftable fixing post.

[0016] The advantages of this invention compared to the prior art are: 1. This invention enables the adjustment of scion height by using two mounting frames on a machine frame and controlling the lifting and lowering of the frames via a lifting assembly. Two sets of clamping assemblies with perpendicular extension directions are mounted on the mounting frames. A control mechanism controls two movable rods of the same set of clamping assemblies to move closer together to clamp the scion and then move further apart to release it. Simultaneously, a linear drive assembly controls the synchronous movement of the two movable rods of the same set to adjust the scion insertion angle. This solves the technical problem of scion death caused by unstable scion support leading to insertion angle deviations in existing equipment.

[0017] 2. This invention utilizes a controllable gas spring to provide either pushing or pulling force to control the closing and resetting of the movable rod. A limiting component restricts the closing of the movable rod, achieving the effect of automatically clamping the scion and precisely resetting it. In the initial state, the controllable gas spring provides pushing force to the movable rod, causing it to tend to close. When the limiting component releases the closing restriction on the movable rod, the two movable rods in the same group close under the pushing force of the two controllable gas springs, causing the clamping block to move and clamp the scion. After the grafting is completed, the graft union of the scion and rootstock is covered. After grafting, the air pressure of the controllable gas spring is adjusted to provide pulling force to the movable rod, thereby controlling the movable rod to reset and release the scion.

[0018] 3. The present invention realizes the function of automatically controlling the connection between the linear drive assembly and the movable rod through the second guide rod, the first elastic element and the connecting assembly. In the initial state, the scion is automatically clamped by the elastic force provided by the controllable gas spring. After the clamping action is completed, the linear drive assembly and the movable rod are automatically connected to precisely adjust the position of the movable rod to achieve the effect of adjusting the scion insertion angle. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a forest tree seedling grafting device and scion after they are combined according to the present invention.

[0020] Figure 2 This is a three-dimensional schematic diagram of a tree seedling grafting device according to the present invention.

[0021] Figure 3 This is a three-dimensional schematic diagram of the mounting frame and control mechanism of a forest tree seedling grafting device according to the present invention.

[0022] Figure 4 This is a three-dimensional exploded view of the movable rod and clamping block of a forest tree seedling grafting device according to the present invention.

[0023] Figure 5 This is a three-dimensional schematic diagram of the movable rod, clamping block, and connecting components of a forest tree seedling grafting device according to the present invention.

[0024] Figure 6 This is the invention Figure 5 A magnified view of a portion of point A in the middle.

[0025] Figure 7 This is a three-dimensional schematic diagram of the linear drive component and control mechanism of a forest tree seedling grafting device according to the present invention.

[0026] Figure 8 This is the invention Figure 7 A magnified view of a portion of point B in the middle.

[0027] Figure 9 This is a three-dimensional schematic diagram of the base frame and support legs of a forest tree seedling grafting device according to the present invention.

[0028] Figure 10 This is the invention Figure 9 A magnified view of a portion of point C.

[0029] The diagram is labeled as follows: 1. Frame; 11. Lifting assembly; 111. First rotary actuator; 112. First screw; 113. Threaded sleeve; 12. Top frame; 13. Base frame; 14. Support leg; 141. Caster wheel; 142. Horizontal plate; 143. Fixing post; 144. Pressure plate; 145. Elastic protrusion; 2. Mounting frame; 21. Clamping assembly; 211. Movable rod; 2111. Second guide rod; 2112. First elastic element; 21 2. Clamping block; 22. Linear drive assembly; 221. Second rotary actuator; 222. Second screw; 23. First guide rod; 24. Connecting assembly; 241. Transmission rod; 242. Abutment block; 2421. Rubber pad; 243. Second elastic element; 244. Connecting frame; 3. Control mechanism; 31. Controllable gas spring; 311. Push block; 32. Restriction assembly; 321. Clamping tongue; 322. Third elastic element; 4. Scion; 5. Rootstock. Detailed Implementation

[0030] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figures 1-3A scion support mechanism includes a frame 1, a mounting frame 2, and a control mechanism 3. Two mounting frames 2 are provided, each mounted on the frame 1. The frame 1 is equipped with a lifting assembly 11 for controlling the raising and lowering of the mounting frames 2. Two sets of clamping assemblies 21 are provided on the mounting frames 2. Each clamping assembly 21 includes two movable rods 211, each movable rod 211 having a clamping block 212 for clamping the scion 4. The extension directions of the movable rods 211 of the two sets of clamping assemblies 21 are perpendicular to each other. A linear drive assembly 22 is provided on the mounting frame 2 for controlling the synchronous movement of the two movable rods 211 of the same set of clamping assemblies 21. The control mechanism 3 controls the two movable rods 211 of the same set of clamping assemblies 21 to move closer to or further away from each other.

[0032] This invention enables the adjustment of the scion 4 height via two mounting frames 2 on a frame 1, controlled by a lifting assembly 11. Two sets of clamping assemblies 21 with perpendicular extension directions are located on the mounting frames 2. A control mechanism 3 controls two movable rods 211 of the same set of clamping assemblies 21 to move closer together to clamp the scion 4 and then move further apart to release it. Simultaneously, a linear drive assembly 22 controls the synchronous movement of the two movable rods 211 of the same set to adjust the insertion angle of the scion 4. This solves the technical problem in existing equipment where unstable support of the scion 4 leads to insertion angle deviation and scion 4 failure. Two sets of lifting assemblies 11 are provided, each used to drive the two mounting frames 2 to move up and down. Each lifting assembly 11 includes a first rotary driver 111 and a first screw 112. The first rotary driver 111 is mounted on the frame 1, and the first screw 112 is rotatably mounted on the frame 1. The first rotary driver 111 drives the first screw 112 to rotate. Each mounting bracket 2 is fixedly installed with a threaded sleeve 113, and the first screw 112 of the two sets of lifting components 11 is threadedly connected to the threaded sleeve 113 on the two mounting brackets 2 respectively.

[0033] The operator first places the scion 4 in a suitable position. The control mechanism 3 is activated, causing the two movable rods 211 in each set of clamping components 21 on the two mounting frames 2 to move closer together, driving the clamping blocks 212 to clamp the scion 4 from two perpendicular directions. Then, as needed, the first rotary driver 111 is activated, driving the first screw 112 to rotate. The first screw 112 drives the threaded sleeve 113 connected to it to move, causing the threaded sleeve 113 to move. The threaded sleeve 113 drives the mounting frame 2 to rise and fall, adjusting the height of the scion 4. If it is necessary to adjust the insertion angle of the scion 4, the linear drive component 22 controls the two movable rods 211 of the same set of clamping components 21 to move synchronously. Since the extension directions of the movable rods 211 of the two sets of clamping components 21 are perpendicular to each other, the movable rods of the different sets of clamping components 21... The synchronous movement of 211 allows for adjustment of the insertion angle of the scion 4. After adjustment, the lifting component 11 drives the mounting frame 2 and the scion 4 to move down, allowing for the insertion of the scion 4 and the rootstock 5. Once completed, the control mechanism 3 controls the movable rods 211 to move away from each other, and the clamping block 212 releases the scion 4. This achieves stable clamping of the scion 4 from two vertical directions, preventing the scion 4 from tilting during insertion. It ensures accurate and sufficient contact between the cambium layers of the scion 4 and the rootstock 5, ensuring that the callus tissue can connect the two to maintain nutrient delivery. This solves the technical problem of existing grafting equipment that cannot stably support the scion 4 by simply holding it with a gripper, causing the scion 4 to tilt and affecting the insertion angle, resulting in misalignment of the cambium layers of the scion 4 and the rootstock 5 or insufficient contact area, ultimately leading to the death of the scion 4 due to interruption of nutrient delivery.

[0034] Reference Figure 1 and Figure 3 Each mounting bracket 2 is equipped with four controllable gas springs 31. The piston rod of the controllable gas spring 31 is connected to a push block 311. The four push blocks 311 are respectively connected to four movable rods 211. Mounting bracket 2 is equipped with a limiting component 32 for limiting the closure of movable rod 211; in the initial state, controllable gas spring 31 provides a pushing force to movable rod 211. When the limiting component 32 releases the closure restriction of movable rod 211, the two movable rods 211 in the same group close under the pushing force of the two controllable gas springs 31; after the grafting operation is completed, the air pressure of controllable gas spring 31 is adjusted, and controllable gas spring 31 provides a pulling force to movable rod 211 to control movable rod 211 to reset.

[0035] This invention utilizes a controllable gas spring 31 to provide pushing or pulling force, thereby controlling the closing and resetting of the movable rod 211. A limiting component 32 restricts the closing of the movable rod 211, achieving the effect of automatically clamping the scion 4 and precisely resetting the movable rod 211. The controllable gas spring 31 is connected to an air pump via a pressure regulating valve, thus providing pushing or pulling force by adjusting the air pressure. The air pump is not shown in the figure. Two controllable gas springs 31, used to drive the opening and closing of the two movable rods 211 of the same clamping component 21, are located outside the two movable rods 211, and the extension and retraction directions of the telescopic rods of the two controllable gas springs 31 are opposite. A first guide rod 23 is provided on the mounting bracket 2, and the movable rod 211 slides in cooperation with the first guide rod 23. The first guide rod 23 guides the movement of the movable rod 211, thereby enabling the controllable gas spring 31 to stably push the movable rod 211 to close, clamping the scion 4.

[0036] In the initial state, the controllable gas spring 31 provides a pushing force to the movable rod 211, which tends to close. When the limiting component 32 releases the closing restriction on the movable rod 211, the two movable rods 211 in the same group close under the pushing force of the two controllable gas springs 31, causing the clamping block 212 to move and clamp the scion 4; after the grafting is completed, the graft union of the scion 4 and the rootstock 5 is covered. After grafting is completed, the air pressure of the controllable gas spring 31 is adjusted to provide a pulling force to the movable rod 211, thereby controlling the movable rod 211 to return to its original position and releasing the scion 4.

[0037] Reference Figure 3 and Figure 4 The movable rod 211 is provided with a second guide rod 2111 and a first elastic element 2112; the clamping block 212 is slidably engaged with the second guide rod 2111, and the two ends of the first elastic element 2112 are respectively connected to the clamping block 212 and the movable rod 211; the movable rod 211 is provided with a connecting component 24 for transmission connection with the linear drive assembly 22; when the clamping block 212 clamps the tassel 4, the clamping block 212 is pressed and abuts against the movable rod 211, and the connecting component 24 connects the movable rod 211 and the linear drive assembly 22.

[0038] This invention achieves the function of automatically controlling the connection between the linear drive assembly 22 and the movable rod 211 through the second guide rod 2111, the first elastic element 2112, and the connecting assembly 24. In the initial state, the scion 4 is automatically clamped by the elastic force provided by the controllable gas spring 31. After the clamping action is completed, the linear drive assembly 22 and the movable rod 211 are automatically connected to precisely adjust the position of the movable rod 211, thereby achieving the effect of adjusting the insertion angle of the scion 4. When grafting onto the main trunk or branches of the rootstock 5, different insertion angles are required. Therefore, it is necessary to precisely adjust the position and angle of the scion 4 to perform the corresponding insertion action. When it is necessary to clamp the scion 4, the limiting component 32 releases the closing restriction on the movable rod 211. Under the pushing force of the controllable gas spring 31, the movable rods 211 approach each other. After the clamping block 212 contacts the scion 4, it is pressed and slides along the second guide rod 2111 towards the movable rod 211, compressing the first elastic element 2112 until the clamping block 212 abuts against the movable rod 211. At this time, the connecting component 24 connects the movable rod 211 and the linear drive component 22. The linear drive component 22 can drive the movable rod 211 to move synchronously and adjust the insertion angle. After the grafting is completed, the movable rods 211 move away from each other, and the clamping block 212 returns to its original position along the second guide rod 2111 under the action of the first elastic element 2112. In the initial state, the connecting assembly 24 is not connected to the linear drive assembly 22 and the movable rod 211, allowing the movable rod 211 to move smoothly under the thrust of the controllable gas spring 31. After the clamping action is completed, the connecting assembly 24 connects to the linear drive assembly 22, which then precisely adjusts the position of the movable rod 211. The first elastic element 2112 provides a buffering effect when the clamping block 212 clamps the scion 4, preventing damage from a violent impact between the scion 4 and the clamping block 212.

[0039] Reference Figures 3-6 The connecting assembly 24 includes a transmission rod 241, an abutment block 242, a second elastic element 243, and a connecting frame 244. The transmission rod 241 and the abutment block 242 are slidably mounted on the movable rod 211. The end of the transmission rod 241 near the clamping block 212 is provided with a first inclined surface, and the end of the abutment block 242 near the transmission rod 241 is provided with a second inclined surface. The end of the transmission rod 241 away from the clamping block 212 is provided with a protrusion for pushing the abutment block 242 to move. The two ends of the second elastic element 243 are respectively connected to the abutment block 242 and the movable rod 211. The connecting frame 244 is connected to the linear drive assembly 22. When the abutment block 242 abuts against the connecting frame 244, the connecting frame 244 drives the abutment block 242 to move synchronously.

[0040] This invention achieves an effective transmission connection between the movable rod 211 and the linear drive assembly 22 after the clamping block 212 clamps the scion 4, through the transmission rod 241, the abutment block 242, the second elastic element 243, and the connecting frame 244. This ensures that the linear drive assembly 22 can reliably drive the movable rod 211 to move synchronously to adjust the angle of the scion 4. The linear drive assembly 22 includes a second rotary driver 221 and a second screw 222. The second rotary driver 221 is mounted on the mounting frame 2; the second screw 222 is rotatably mounted on the mounting frame 2, and the second rotary driver 221 drives the second screw 222 to rotate. The second screw 222 is threadedly connected to the connecting frame 244. When the clamping block 212 clamps the tassel 4, the clamping block 212 is pressed and slides along the second guide rod 2111, contacting the first inclined surface of the transmission rod 241. This pushes the transmission rod 241 to slide on the movable rod 211. The protrusion on the transmission rod 241 moves accordingly and presses against the second inclined surface of the abutment block 242, pushing the abutment block 242 to slide. The abutment block 242 stretches the second elastic element 243 until it abuts against the connecting frame 244. At this time, the connecting frame 244 and the abutment block 242 form a transmission relationship. When the second rotary driver 221 is activated, it drives the second screw 222 to rotate. When the second screw 222 drives the connecting frame 244, which is threaded to it, to move, the connecting frame 244 drives the abutment block 242 and the movable rod 211 to move synchronously through friction. When the clamping block 212 releases the tassel 4, the clamping block 212 resets under the action of the first elastic element 2112 and no longer applies force to the transmission rod 241. The abutment block 242 resets under the action of the second elastic element 243 and disengages from the connecting frame 244. At the same time, the abutment block 242 presses the protrusion on the transmission rod 241 through the second inclined surface, thereby pushing the transmission rod 241 to reset, and the transmission connection between the movable rod 211 and the linear drive assembly 22 is disconnected.

[0041] Reference Figure 5 and Figure 6 The top of the abutment block 242 is provided with a rubber pad 2421 for abutting against the connecting frame 244.

[0042] This invention achieves the function of abutting the connecting frame 244 by setting a rubber pad 2421 at the top of the abutting block 242, thereby reducing wear and noise during the contact between the abutting block 242 and the connecting frame 244, and enhancing the stability of the contact. It solves the technical problems of easy wear, noise generation, and poor contact stability caused by direct hard contact between the abutting block 242 and the connecting frame 244. The rubber pad 2421 is preferably made of rubber. The rubber pad 2421 increases the friction between the abutting block 242 and the connecting frame 244 after they contact each other. When the abutting block 242 abuts against the connecting frame 244 under the push of the transmission rod 241, the rubber pad 2421 at the top of the abutting block 242 first contacts the connecting frame 244. As the abutting block 242 continues to move, the rubber pad 2421 is compressed, so that the abutting block 242 and the connecting frame 244 are stably abutted. During the synchronous movement of the abutting block 242 driven by the connecting frame 244, the rubber pad 2421 buffers the force between the two. When the abutting block 242 resets and disengages from the connecting frame 244, the rubber pad 2421 returns to its original state.

[0043] Reference Figure 3 , Figure 7 and Figure 8 The limiting component 32 includes a latch 321 and a third elastic element 322; the mounting frame 2 has a receiving groove for accommodating the latch 321 and the third elastic element 322; the two ends of the third elastic element 322 are respectively connected to the latch 321 and the mounting frame 2; when the latch 321 abuts against the push block 311, the limiting movable rod 211 closes; the mounting frame 2 has a built-in linear motor for controlling the retraction of the latch 321.

[0044] This invention achieves the function of closing and releasing the restriction of the movable rod 211 by means of the latch 321 of the limiting component 32 under the action of the third elastic element 322, and by means of the linear motor controlling the contraction of the latch 321. This achieves the effect of precisely controlling the closing timing of the movable rod 211 and ensuring the stability of the restriction state. In the initial state, the third elastic element 322 pushes the latch 321 out of the receiving groove, blocking the movable rod 211 and restricting its closure. When it is necessary to release the restriction, the linear motor built into the mounting bracket 2 starts, driving the latch 321 to retract into the receiving groove and compress the third elastic element 322. The movable rod 211 is no longer blocked and closes under the thrust of the controllable gas spring 31. When the linear motor stops working, the latch 321 extends out of the receiving groove under the action of the third elastic element 322, and re-closes and restricts the movable rod 211.

[0045] Reference Figure 1 and Figure 2 The frame 1 is connected to a top frame 12 and a bottom frame 13, which are distributed vertically; the bottom frame 13 has a notch for the rootstock 5 to pass through.

[0046] This invention utilizes a top frame 12 and a bottom frame 13 to allow the rootstock 5 to pass through a notch on the bottom frame 13. The top frame 12 and bottom frame 13 on the frame 1 provide an installation foundation, achieving a stable installation position for each component of the support mechanism and facilitating the transport of the rootstock 5 to the scion 4 for grafting. This solves the technical problems of insufficient installation stability of the frame 1 and difficulty in smoothly reaching the grafting position for the rootstock 5. Furthermore, the top frame 12 and bottom frame 13 limit the movement of the mounting frame 2, guiding and supporting it. The frame 1 forms a stable structure through the top frame 12 and bottom frame 13, with each component installed in its corresponding position. During grafting, the rootstock 5 is transported through the notch on the bottom frame 13 to the scion 4, allowing the scion 4 and rootstock 5 to complete the grafting operation.

[0047] Reference Figure 1 , Figure 2 , Figure 9 and Figure 10 A grafting device for forest tree seedlings, including a scion support mechanism.

[0048] This invention integrates a support mechanism into a forest tree grafting device. The operator first places the scion 4 in a suitable position, then activates the control mechanism 3. This causes the two movable rods 211 in each set of clamping components 21 on the two mounting frames 2 to move closer together, driving the clamping blocks 212 to hold the scion 4 from two vertical directions. The scion 4 and rootstock 5 are then cut using a cutting mechanism (not shown in the figure). After cutting, the mounting frame 2 is lowered via the lifting component 11, causing the scion 4 to move downwards for subsequent grafting operations.

[0049] Reference Figure 2 , Figure 9 and Figure 10 The base frame 13 has at least three support legs 14 at its bottom, and the bottom of the support legs 14 is equipped with casters 141.

[0050] This invention achieves convenient movement of the grafting device through support legs 14 and casters 141. The device is supported by at least three support legs 14 and casters 141 at the bottom of the base frame 13, enabling movement and providing stable support for the scion 4 during grafting while allowing for flexible movement. This solves the technical problems of lacking a stable support structure and inconvenient movement in grafting devices. In operation, the forest tree seedling grafting device uses its included support mechanism to clamp and adjust the scion 4. The support legs 14 at the bottom of the base frame 13 provide stable support for the entire device. When movement is required, the casters 141 at the bottom of the support legs 14 propel the device to the desired position, facilitating forest tree seedling grafting operations in different scenarios.

[0051] Reference Figure 2 , Figure 9 and Figure 10 The support leg 14 is provided with a horizontal plate 142, and the horizontal plate 142 is provided with a liftable fixing post 143.

[0052] This invention improves the stability of the grafting device through the horizontal plate 142 and the fixing pile 143. A pressure plate 144 is connected to the top of the fixing pile 143, and the support leg 14 is equipped with an elastic protrusion 145 to restrict the downward movement of the fixing pile 143. When fixing the device, the operator steps on the pressure plate 144, pushing it and the fixing pile 143 downwards. The pressure plate 144 contacts the elastic protrusion 145, squeezing it and causing the fixing pile 143 to penetrate deep into the soil to secure the device. When moving the device, the operator pulls the pressure plate 144 until it is above the elastic protrusion 145. The elastic protrusion 145 then restricts the downward movement of the pressure plate 144, preventing the fixing pile 143 from moving downwards under gravity and affecting the movement of the frame 1.

[0053] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A scion support mechanism, characterized in that, It includes a frame (1), a mounting bracket (2), and a control mechanism (3); There are two mounting brackets (2), both of which are mounted on the frame (1). The frame (1) is equipped with a lifting assembly (11) for controlling the lifting of the mounting brackets (2). The mounting frame (2) is provided with two sets of clamping components (21). The clamping components (21) include two movable rods (211). The movable rods (211) are provided with clamping blocks (212) for clamping the scion (4). The extension directions of the movable rods (211) of the two sets of clamping components (21) are perpendicular to each other. The mounting bracket (2) is provided with a linear drive assembly (22) for controlling the synchronous movement of two movable rods (211) of the same set of clamping components (21); The control mechanism (3) is used to control the two movable rods (211) of the same set of clamping components (21) to move closer to or further away from each other.

2. The scion support mechanism according to claim 1, characterized in that, Each mounting bracket (2) is provided with four controllable gas springs (31), and the piston rod of the controllable gas spring (31) is connected to a push block (311). The four push blocks (311) are respectively connected to four movable rods (211). The mounting bracket (2) is provided with a limiting component (32) for limiting the closure of the movable rod (211); In the initial state, the controllable gas spring (31) provides a thrust to the movable rod (211). When the limiting component (32) releases the closing restriction on the movable rod (211), the two movable rods (211) in the same group close under the thrust of the two controllable gas springs (31). After the grafting operation is completed, the air pressure of the controllable air spring (31) is adjusted. The controllable air spring (31) provides a pulling force to the movable rod (211) to control the movable rod (211) to reset.

3. The scion support mechanism according to claim 1, characterized in that, The movable rod (211) is provided with a second guide rod (2111) and a first elastic element (2112); The clamping block (212) is slidably engaged with the second guide rod (2111), and the two ends of the first elastic element (2112) are connected to the clamping block (212) and the movable rod (211) respectively; The movable rod (211) is provided with a connecting component (24) for transmission connection with the linear drive assembly (22); When the clamping block (212) clamps the tassel (4), the clamping block (212) is pressed and abuts against the movable rod (211), and the connecting assembly (24) connects the movable rod (211) and the linear drive assembly (22).

4. The scion support mechanism according to claim 3, characterized in that, The connecting assembly (24) includes a transmission rod (241), an abutment block (242), a second elastic element (243), and a connecting frame (244). The transmission rod (241) and the abutment block (242) are both slidably mounted on the movable rod (211). The transmission rod (241) has a first inclined surface at the end near the clamping block (212), and the abutment block (242) has a second inclined surface at the end near the transmission rod (241). The transmission rod (241) has a protrusion at the end away from the clamping block (212) for pushing the abutment block (242) to move. The two ends of the second elastic element (243) are connected to the abutment block (242) and the movable rod (211) respectively; The connecting frame (244) is connected to the linear drive assembly (22) for transmission. When the abutting block (242) abuts against the connecting frame (244), the connecting frame (244) drives the abutting block (242) to move synchronously.

5. A scion support mechanism according to claim 4, characterized in that, The top of the abutment block (242) is provided with a rubber pad (2421) for abutting against the connecting frame (244).

6. The scion support mechanism according to claim 2, characterized in that, The limiting component (32) includes a latch (321) and a third elastic element (322); The mounting bracket (2) has a receiving groove for accommodating the latch (321) and the third elastic element (322); The two ends of the third elastic element (322) are connected to the latch (321) and the mounting bracket (2) respectively; When the latch (321) abuts against the push block (311), the limiting lever (211) closes; The mounting bracket (2) has a built-in linear motor for controlling the retraction of the latch (321).

7. The scion support mechanism according to claim 1, characterized in that, The frame (1) is connected to the top frame (12) and the bottom frame (13) which are distributed vertically. The base frame (13) has a notch for the rootstock (5) to pass through.

8. A grafting device for forest tree seedlings, characterized in that, Includes a scion support mechanism as described in any one of claims 1-7.

9. A tree seedling grafting device according to claim 8, characterized in that, The bottom of the base frame (13) is provided with at least three support legs (14), and the bottom of the support legs (14) is provided with casters (141).

10. A tree seedling grafting device according to claim 9, characterized in that, The support leg (14) is provided with a horizontal plate (142), and the horizontal plate (142) is provided with a liftable fixed post (143).

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