Bud grafting knife for poplar grafting

Abstract

The utility model relates to the technical field of bud grafting knives, and discloses a bud grafting knife for poplar grafting, which comprises a knife body, a hand guard block fixedly connected to the side wall of the knife body, a knife handle fixedly connected to the side wall of the hand guard block, a knife sheath slidably connected to the outer wall of the knife body, and locking assemblies arranged on the upper side and the lower side in the hand guard block. The locking assembly comprises a fixed column, a plurality of limiting balls are slidably connected into the fixed column, a movable inner column is slidably connected to the inner wall of the fixed column, and a reset spring is arranged at the bottom of the movable inner column. According to the utility model, firstly, the movable inner column is pressed, so that the reset spring is compressed under stress, the rolling ball groove moves downwards along with the reset spring, the limiting ball loses lateral pressure and is loosened, at the moment, the sheath is pulled, the limiting ball slides into the rolling ball groove under the extrusion of the inner wall of the sheath, the sheath is locked, and the effects of quickly disassembling and assembling the sheath and preventing a knife body from scratching a worker are achieved; the bud grafting knife solves the problem that a traditional bud grafting knife is prone to hurting people, and operation safety and convenience are improved.

Description

Technical Field

[0001] This utility model relates to the field of budding knife technology, and in particular to a budding knife for grafting poplar trees. Background Technology

[0002] Poplar trees, as a widely planted tree species, play an extremely important role in forestry production, ecological protection, and timber processing. Grafting is a common and effective method in the propagation and cultivation of poplar trees, which can achieve the goals of variety improvement and enhancing tree resistance. Budding, as an important method of grafting, is of great significance for the efficient propagation of poplar trees. The budding knife is the most critical tool in the budding operation, and its performance directly affects the efficiency and quality of the grafting work.

[0003] In the current field of poplar grafting, most budding knives are designed in a relatively basic manner. Their main structure typically consists of a simple, one-piece blade and handle. The blade is usually made of ordinary steel, simply polished to create a sharp edge to meet the basic requirements of cutting buds and rootstock. The handle is usually made of wood or plastic. During poplar budding, the operator holds this type of budding knife and, relying on their experience and skill, shaves the bud from the scion and cuts a suitable interface on the rootstock.

[0004] However, this conventionally designed poplar grafting budding knife has significant drawbacks, with the lack of blade protection being particularly prominent. Because the budding knife has no sheath, the blade is constantly exposed. In actual grafting operations, the environment is complex and changeable, workers' hands move frequently, and their attention is highly focused on the grafting action itself. A slight mishap can easily result in accidental contact with the sharp blade, causing hand injuries and greatly threatening the personal safety of the operators, creating numerous hidden dangers. Therefore, a new poplar grafting budding knife is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a budding knife for poplar grafting, which aims to improve the problem that budding knives in the prior art are prone to causing injury.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A budding knife for grafting poplar trees includes a blade, a hand guard fixedly connected to the side wall of the blade, a handle fixedly connected to the side wall of the hand guard, a sheath slidably connected to the outer wall of the blade, and locking components provided on the upper and lower sides inside the hand guard.

[0008] The locking assembly includes a fixed post, the outer wall of which is fixedly connected to the inside of the handguard block, the bottom of the outer wall of which is slidably connected to the inside of the sheath, a plurality of limiting balls slidably connected inside the fixed post, the limiting balls being distributed in a circumferential shape, a movable inner post slidably connected to the inner wall of the fixed post, a ball groove being formed at the bottom of the outer wall of the movable inner post, a limiting plate being fixedly connected to the outer wall of the movable inner post, and a return spring being provided at the bottom of the movable inner post, one end of which is fixedly connected to the bottom of the inner wall of the fixed post, and the other end of which is fixedly connected to the bottom of the movable inner post.

[0009] As a further description of the above technical solution:

[0010] The handle has an internal receiving groove, and the opening of the receiving groove is located on the side wall of the handle.

[0011] As a further description of the above technical solution:

[0012] The tool holder has a sliding groove inside, which is located on the side of the receiving groove, and a sliding plate is slidably connected to the inner wall of the sliding groove.

[0013] As a further description of the above technical solution:

[0014] The sliding plate is provided with symmetrical locking blocks on its side, and the sidewalls of the locking blocks are all fixedly connected to the sidewalls of the sliding plate.

[0015] As a further description of the above technical solution:

[0016] Each locking block has a fixing box on its side, and the outer wall of the fixing box is fixedly connected to the inside of the knife handle.

[0017] As a further description of the above technical solution:

[0018] The fixing box has spring grooves on both the upper and lower sides inside. The locking block is slidably connected inside the fixing box, and the spring grooves are located on the upper and lower sides of the locking block.

[0019] As a further description of the above technical solution:

[0020] Each spring groove is equipped with a limit spring, one end of which is fixedly connected to the inner wall of the spring groove, and the other end of which is fixedly connected to a limit block.

[0021] As a further description of the above technical solution:

[0022] The outer walls of the limiting blocks are all slidably connected inside the spring grooves, and the limiting blocks are used to restrict the position of the locking blocks.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the movable inner column is first pressed inward, causing the return spring to be compressed and the ball groove to move downward. The limiting ball, which was originally squeezed inside the blade sheath by the movable inner column, loses lateral pressure and loosens. At this time, the blade sheath is pulled, and under the pressure of the inner wall of the blade sheath, the limiting ball slides into the ball groove, completing the blade sheath locking. This achieves the effect of quickly disassembling and installing the blade sheath, preventing the blade from scratching the staff, solving the problem of easy injury from traditional budding knives, and improving the safety and convenience of operation.

[0025] 2. In this utility model, when cutting multiple buds, the worker manually pulls the sliding plate, which moves to one side in the sliding groove, causing the side wall locking block to move and press the limiting block in the fixing box, so that it slides into the spring groove and compresses the limiting spring. After the locking block is released from the fixing box, the limiting spring pushes the limiting block to reset. At this time, multiple buds can be placed into the receiving groove, achieving the effect of portable placement of multiple buds, solving the problem of difficult temporary storage of buds, and improving grafting efficiency. Attached Figure Description

[0026] Figure 1 This is a three-dimensional view of a budding knife for grafting poplar trees proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the sheath structure of a bud grafting knife for poplar tree grafting proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the sliding plate structure of a bud grafting knife for poplar grafting proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. Blade; 2. Sheath; 3. Handle; 4. Handguard; 5. Fixed post; 6. Movable inner post; 7. Limiting plate; 8. Return spring; 9. Ball groove; 10. Limiting ball; 11. Receiving groove; 12. Sliding plate; 13. Slide groove; 14. Locking block; 15. Fixed box; 16. Spring groove; 17. Limiting block; 18. Limiting spring. Detailed Implementation

[0033] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a budding knife for poplar grafting, comprising a blade 1 made of high carbon steel and subjected to heat treatment processes such as quenching, having a sharp cutting edge and high hardness, capable of easily cutting the bark and wood of poplar trees. A hand guard 4 is fixedly connected to the side wall of the blade 1, the function of the hand guard 4 being to protect the user's hand when using the budding knife. A handle 3 is fixedly connected to the side wall of the hand guard 4, the handle 3 being made of engineering plastic with a non-slip surface, providing the user with a comfortable grip. A sheath 2 is slidably connected to the outer wall of the blade 1, the sheath 2 being made of plastic, its function being to cover the outside of the blade 1 when the budding knife is not in use, protecting the cutting edge of the blade 1 from damage, and preventing the blade 1 from scratching the staff. Locking components are provided on the upper and lower sides inside the hand guard 4.

[0035] The locking assembly includes a fixed post 5, which provides a mounting base and support for components such as the limiting balls 10 and the movable inner post 6. It also works in conjunction with the sheath 2 to lock and unlock the sheath 2. The outer wall of the fixed post 5 is fixedly connected to the inside of the handguard block 4, and the bottom of the outer wall of the fixed post 5 is slidably connected to the inside of the sheath 2. Multiple limiting balls 10 are slidably connected inside the fixed post 5. The function of the limiting balls 10 is that, in the locked state, they are locked inside the sheath 2, locking the sheath 2 to the blade 1; in the unlocked state, they slide into the ball groove 9 of the movable inner post 6, releasing the lock between the sheath 2 and the blade 1. The limiting balls 10 are distributed in a circumferential shape. The movable inner post 6 is slidably connected to the inner wall of the fixed post 5. A ball groove 9 is provided at the bottom of the wall. The ball groove 9 is a groove formed at the bottom of the outer wall of the movable inner column 6 by mechanical processing. Its function is to provide a space for the limiting ball 10 when the movable inner column 6 is displaced. A limiting plate 7 is fixedly connected to the outer wall of the movable inner column 6. A return spring 8 is provided at the bottom of the movable inner column 6. The function of the return spring 8 is to be compressed by force when the movable inner column 6 is pressed, store elastic potential energy, and release elastic potential energy when the movable inner column 6 is released, push the movable inner column 6 to return to its original position, so that the limiting ball 10 is locked back into the sheath 2, thereby locking the sheath 2. One end of the return spring 8 is fixedly connected to the bottom of the inner wall of the fixed column 5, and the other end of the return spring 8 is fixedly connected to the bottom of the movable inner column 6.

[0036] Specifically, when using this poplar grafting budding knife, the worker first applies pressure to the movable inner post 6 with their finger. Under the pressure, the movable inner post 6 moves along the inner wall of the fixed post 5 inwards. This displacement causes the return spring 8 at its bottom to be compressed. Simultaneously, the ball groove 9 moves from a higher to a lower position inside the fixed post 5 as the movable inner post 6 moves. When the movable inner post 6 is not moving downwards, the outer wall of the movable inner post 6 applies lateral pressure to the limiting ball 10, causing the limiting ball 10 to lock in the groove inside the sheath 2, thus locking the sheath 2 and the blade 1. When the movable inner post 6 moves downwards, the limiting ball 10 is no longer compressed by the outer wall of the movable inner post 6 and becomes loose. At this point, the worker uses their other hand to hold the sheath 2 away from the blade 1 and pushes the ball into the sheath. 2. When a pulling force is applied, the limiting ball 10 begins to move into the fixed post 5 under the pressure of the inner wall of the sheath 2. As the ball groove 9 moves downward to the appropriate position along with the movable inner post 6, the limiting ball 10 slides into the ball groove 9 under the pressure of the inner wall of the sheath 2. The limiting ball 10 disengages from the slot inside the sheath 2, releasing the lock between the sheath 2 and the blade 1. The operator continues to pull the sheath 2, and the sheath 2 slides away from the blade 1 along the outer wall of the blade 1 until the sheath 2 is completely removed from the blade 1, completing the disassembly of the sheath 2. When it is necessary to install the sheath 2, the operator aligns the sheath 2 with the blade 1, and then pushes the sheath 2 towards the blade 1 along the outer wall of the blade 1. When the sheath 2 moves to the appropriate position, the limiting ball 10, under the action of the return spring 8, re-locks into the slot inside the sheath 2, achieving the locking of the sheath 2 and the blade 1. Through this operation, the effect of quickly disassembling and installing the sheath 2 is achieved, effectively preventing the blade 1 from scratching the operator.

[0037] Reference Figure 4 and Figure 5The handle 3 has an internal receiving groove 11, which is a groove structure formed by machining inside the handle 3. The function of the receiving groove 11 is to provide temporary storage space for the buds taken during the grafting of poplar trees. The opening of the receiving groove 11 is located on the side wall of the handle 3. The handle 3 also has an internal sliding groove 13, which is a channel formed by machining inside the handle 3. The sliding groove 13 is located on the side of the receiving groove 11 and provides a sliding track for the sliding plate 12. The sliding plate 12 is slidably connected to the inner wall of the sliding groove 13. The function of the sliding plate 12 is to connect the locking block 14 and transmit the external force applied by the operator. By sliding in the sliding groove 13, the locking block 14 is moved, thereby locking and unlocking the opening of the receiving groove 11. The sliding plate 12 has symmetrical locking blocks 14 on its side. The function of the locking blocks 14 is to cooperate with the fixing box 15 to restrict the opening of the receiving groove 11 under normal conditions to prevent the buds from accidentally falling out of the receiving groove 11; and to lock the opening when buds need to be stored. When the device is moved away from the fixed box 15, the receiving groove 11 is opened. The side walls of the locking block 14 are all fixedly connected to the side walls of the sliding plate 12. The side of the locking block 14 is provided with a fixed box 15. The outer wall of the fixed box 15 is fixedly connected to the inside of the tool holder 3. The upper and lower sides of the fixed box 15 are provided with spring grooves 16 to accommodate the limiting spring 17 and the limiting block 18. The locking block 14 is slidably connected to the inside of the fixed box 15. The spring grooves 16 are located on the upper and lower sides of the locking block 14. The spring grooves 16 are provided with limiting springs 17 and 18. The positioning block 18 and the limiting block 18 are both fixedly connected at one end to the inner wall of the spring groove 16, and the limiting block 18 are both fixedly connected at the other end to the limiting spring 17. The function of the limiting spring 17 is to store elastic potential energy when the locking block 14 moves and is compressed and deformed. When the locking block 14 is disengaged, the elastic potential energy is released to push the locking block 14 to reset, thereby limiting the position of the locking block 14 and realizing the locking function of the sliding plate 12. The outer wall of the limiting spring 17 is slidably connected to the inside of the spring groove 16. The limiting spring 17 is used to limit the position of the locking block 14.

[0038] Specifically, during the grafting process of poplar trees, the buds that are cut off need to be inserted into the rootstock as soon as possible to ensure the survival rate of the buds. When cutting off multiple buds, the operator finds the sliding plate 12 on the handle 3, and then pinches the edge of the sliding plate 12 to apply a pulling force to one side in a direction parallel to the groove 13. Under the pulling force applied by the operator, the sliding plate 12 moves to one side along the track of the groove 13 inside the groove 13. The sliding plate 12 starts from its initial position and slides within the groove 13. Its direction of movement is consistent with the direction of the pulling force applied by the operator. The locking block 14 is fixedly connected to the sliding plate 12. When the sliding plate 12 moves, the locking block 14 moves synchronously. The displacement of the locking block 14 causes its outer wall to press against the limiting block 17 located inside the fixing box 15. Under the pressure of the locking block 14, the limiting block 17 begins to slide into the spring groove 16. The displacement of the limiting block 17 further compresses the limiting spring 18. When the locking block 14 is completely disengaged from the fixing box 15, the limiting block 17 is pushed back to its original position due to the elastic restoring force of the limiting spring 18. At this time, the opening of the receiving groove 11 is opened, and the operator can carefully place multiple buds that have been cut off inside the receiving groove 11. During subsequent grafting operations, the operator can easily remove the buds from the receiving groove 11 and quickly insert them into the rootstock, reducing the time spent searching for and preparing the buds, thereby improving grafting efficiency.

[0039] Working principle: When using this poplar grafting budding knife, the operator first manually presses the two movable inner columns 6 on the upper and lower sides of the hand guard block 4. The displacement of the movable inner columns 6 compresses the return spring 8 at its bottom, and at the same time, it causes the ball groove 9 at the bottom of its outer wall to move downwards. The displacement of the movable inner columns 6 and the ball groove 9 causes the multiple limiting balls 10, which were originally squeezed by the outer wall of the movable inner columns 6 and stuck inside the sheath 2, to lose lateral pressure and become loose. At this time, the operator pulls the sheath 2, and under the compression of the inner wall of the sheath 2, the limiting balls 10 slide into the ball groove 9, thus completing the locking of the sheath 2. This achieves the effect of quickly disassembling and installing the sheath 2 and preventing the blade 1 from scratching the operator. During poplar grafting, the buds that have been cut off need to be inserted into the rootstock as soon as possible. When the operator cuts off multiple buds, he can manually pull the sliding plate 12. The sliding plate 12 moves to one side inside the sliding groove 13. The displacement of the sliding plate 12 causes the locking block 14 on its side wall to move as well. The displacement of the locking block 14 causes its outer wall to press against the limiting block 17 located inside the fixing box 15, causing the limiting block 17 to slide into the spring groove 16. The displacement of the limiting block 17 further compresses the limiting spring 18. When the locking block 14 is completely disengaged from the fixing box 15, the limiting spring 18 pushes the limiting block 17 back to its original position. At this time, the operator can place multiple buds inside the receiving groove 11, thereby improving the grafting efficiency.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A budding knife for grafting poplar trees, comprising a blade (1), characterized in that: A hand guard (4) is fixedly connected to the side wall of the blade (1), a handle (3) is fixedly connected to the side wall of the hand guard (4), a sheath (2) is slidably connected to the outer wall of the blade (1), and locking components are provided on the upper and lower sides inside the hand guard (4). The locking assembly includes a fixed post (5), the outer wall of which is fixedly connected to the inside of the handguard block (4), the bottom of the outer wall of which is slidably connected to the inside of the sheath (2), a plurality of limiting balls (10) are slidably connected inside the fixed post (5), the limiting balls (10) are distributed in a circumferential shape, a movable inner post (6) is slidably connected to the inner wall of the fixed post (5), a ball groove (9) is opened at the bottom of the outer wall of the movable inner post (6), a limiting plate (7) is fixedly connected to the outer wall of the movable inner post (6), and a return spring (8) is provided at the bottom of the movable inner post (6), one end of the return spring (8) is fixedly connected to the bottom of the inner wall of the fixed post (5), and the other end of the return spring (8) is fixedly connected to the bottom of the movable inner post (6).

2. The budding knife for poplar grafting according to claim 1, characterized in that: The handle (3) has a receiving groove (11) inside, and the opening of the receiving groove (11) is located on the side wall of the handle (3).

3. The budding knife for poplar grafting according to claim 2, characterized in that: The tool holder (3) has a sliding groove (13) inside, the sliding groove (13) is located on the side of the receiving groove (11), and a sliding plate (12) is slidably connected to the inner wall of the sliding groove (13).

4. The budding knife for poplar grafting according to claim 3, characterized in that: The sliding plate (12) is provided with symmetrical locking blocks (14) on its side, and the sidewalls of the locking blocks (14) are all fixedly connected to the sidewalls of the sliding plate (12).

5. A budding knife for grafting poplar trees according to claim 4, characterized in that: Each locking block (14) has a fixing box (15) on its side, and the outer wall of the fixing box (15) is fixedly connected to the inside of the knife handle (3).

6. The budding knife for poplar grafting according to claim 5, characterized in that: The fixed box (15) has spring grooves (16) on both the upper and lower sides inside. The locking block (14) is slidably connected inside the fixed box (15), and the spring grooves (16) are located on the upper and lower sides of the locking block (14).

7. A budding knife for grafting poplar trees according to claim 6, characterized in that: Each spring groove (16) is provided with a limiting spring (18). One end of each limiting spring (18) is fixedly connected to the inner wall of the spring groove (16), and the other end of each limiting spring (18) is fixedly connected to a limiting block (17).

8. A budding knife for grafting poplar trees according to claim 7, characterized in that: The outer walls of the limiting blocks (17) are all slidably connected inside the spring grooves (16), and the limiting blocks (17) are used to limit the position of the locking blocks (14).

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