Multi-stage regulated crop pruning shears

Abstract

The utility model discloses crop branch and leaf pruning scissors of many gear adjustments, specifically related to crop pruning tool technical field, including fixed blade, the one side hinged setting of fixed blade has moving blade, and the one side of fixed blade and moving blade all is fixedly arranged with handle, and the surface fixed setting of handle has adjusting mechanism, and adjusting mechanism includes the sliding slot of setting in the surface of handle, and the inside sliding of sliding slot has the sliding block, and the one side rotation of sliding block is provided with screw rod, and one end fixed setting of screw rod has the adjusting knob, and the other side of sliding block is provided with center adjusting cylinder. The utility model can change the opening angle and shearing degree of moving blade and fixed blade flexibly, and the pruning demand of different thickness branch and leaf is adapted easily, and the structure is stable in the adjusting process is ensured, secondly, the handle length can be changed accurately according to actual pruning demand, and the branch and leaf pruning of complex position such as high place, deep place is responded easily.

Description

Technical Field

[0001] This utility model relates to the field of crop pruning tools, and more specifically, to crop pruning shears with multi-position adjustable settings. Background Technology

[0002] In the process of crop cultivation, pruning branches and leaves is an important management measure. Different crops and even the same crop at different growth stages have different requirements for pruning. Fruit trees need light pruning in the young stage to promote the formation of the canopy. In the peak fruiting period, different degrees of pruning are required according to the tree vigor and fruiting situation to regulate the balance between vegetative growth and reproductive growth. For vegetable crops, such as tomatoes and cucumbers, timely pruning of branches and leaves can improve ventilation and light penetration, and improve the quality and yield of fruits.

[0003] Currently available mechanical pruning shears are inefficient and labor-intensive, increasing the burden on fruit farmers. The height range of leaves to be pruned varies greatly, making manual pruning extremely inconvenient.

[0004] A search revealed that Chinese patent CN218634820U discloses a pruning device for fruit tree planting. This structure achieves electric control of the control handle, pruning mechanism, and clamping mechanism, allowing for single-handed operation. Its detachable design facilitates component replacement and charging, enhancing flexibility and maintenance. Furthermore, a ball screw drive system powers the telescopic rod and clamping mechanism, along with a limiting structure, ensuring precise control over the telescopic height and clamping force. The electric shears module is driven by the electric telescopic rod, resulting in smooth and efficient cutting. Additionally, a unique spring-loaded conductive contact and conductive metal sheet ensure continuous circuit connection during rod extension and retraction, guaranteeing continuous operation. The modular circuit design allows for automatic power-on after component connection, resulting in smoother operation.

[0005] However, in actual use, although the structure achieves the electrification of the control handle, pruning mechanism and clamping mechanism, it cannot accurately adjust the cutting force according to actual needs when pruning branches and leaves of different thicknesses. This may result in the excessive compression and damage of thinner branches and leaves, and the inability to cut thicker branches. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a crop pruning shear with multiple adjustable positions to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A multi-position adjustable crop pruning shears includes a fixed blade, a movable blade hinged to one side of the fixed blade, a handle fixedly mounted on one side of both the fixed blade and the movable blade, and an adjustment mechanism fixedly mounted on the surface of the handle.

[0009] The adjustment mechanism includes a groove formed on the surface of the handle, a slider is slidably disposed inside the groove, a threaded rod is rotatably disposed on one side of the slider, and an adjustment knob is fixedly disposed at one end of the threaded rod;

[0010] A central adjusting cylinder is provided on the other side of the slider. Two auxiliary adjusting cylinders are slidably arranged inside the central adjusting cylinder. A first spring is fixedly arranged between the two auxiliary adjusting cylinders. A second spring is fixedly arranged inside the auxiliary adjusting cylinder. An adjusting rod is fixedly arranged at one end of the second spring.

[0011] The adjusting rod is slidably disposed inside the auxiliary adjusting cylinder. One end of the threaded rod passes through the handle and extends outward from the handle. A first limiting ring is fixedly disposed on one side of the auxiliary adjusting cylinder. The first limiting ring is slidably connected to the central adjusting cylinder. A second limiting ring is fixedly disposed on one side of the adjusting rod. The second limiting ring is slidably connected to the auxiliary adjusting cylinder. One end of the adjusting rod is connected to the surface of the slider.

[0012] By adopting the above technical solution, the adjustment operation is made convenient and precise. The cutting level can be quickly adjusted by turning the knob, and the opening and closing angle and cutting force of the moving blade and the fixed blade can be flexibly changed to easily adapt to the pruning needs of branches and leaves of different thicknesses. The structural stability is ensured during the adjustment process, which effectively improves the practicality and durability of the scissors.

[0013] As a further description of the above technical solution: an extension mechanism is provided on one side of the handle, the extension mechanism includes a slot formed on the surface of the handle, a plug is inserted into the inside of the slot, an extension plate is fixedly provided on one side of the plug, and an extension sleeve is fitted on the surface of the extension plate.

[0014] Both the insert and the handle have a fixing groove on their surfaces. A U-shaped insert plate is inserted into the fixing groove, and the U-shaped insert plate is connected to the handle by bolts.

[0015] By adopting the above technical solution, the handle and extension plate can be quickly assembled and disassembled, the operation is simple and efficient, and the flexible sliding adjustment of the extension plate can precisely change the length of the handle according to the actual pruning needs, easily dealing with the pruning of branches and leaves in complex positions such as high places and deep places.

[0016] As a further description of the above technical solution: the surface of the extension plate is provided with multiple threaded grooves, the surface of the extension sleeve is provided with threaded holes, and anti-loosening bolts are threadedly connected inside the threaded grooves and threaded holes;

[0017] A protective sleeve is fixedly provided on the surface of the extension sleeve, and a rubber anti-slip layer is fixedly provided on the surface of the handle.

[0018] By adopting the above technical solution, the handle length can be precisely adjusted and firmly fixed in multiple positions. Moreover, the dual-effect protection design not only avoids wear caused by direct contact between the hand and the metal parts, but also provides a stable grip and reduces fatigue even during long-term operation, greatly improving the safety and comfort of use and providing a reliable guarantee for efficient pruning operations.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] By setting up an adjustment mechanism, compared with existing technologies, the threaded rod rotates when the adjustment knob is turned. Through the threaded engagement with the slider, the rotational motion is converted into linear sliding, which is convenient and highly accurate. Moreover, when the slider moves, it drives the adjustment rod, auxiliary adjustment cylinder and central adjustment cylinder to move together. Under the elastic action of the first spring and the second spring, the relative position and opening angle of the moving blade and the fixed blade can be flexibly changed to achieve multi-level adjustment. Whether it is a slender tender branch or a thick branch, it can quickly adapt to the corresponding cutting force and effect, greatly improving pruning efficiency. At the same time, the limit ring design ensures the stability of the component movement, avoids misalignment, and ensures that each adjustment is accurate. It provides an efficient and reliable solution for pruning crop branches and leaves.

[0021] By incorporating an extension mechanism, compared to existing technologies, when dealing with high branches and leaves, dense crops, or scenarios requiring delicate operation, the insert block is precisely inserted into the slot of the handle. Combined with the U-shaped insert plate and bolts, a preliminary connection is quickly established. Furthermore, the anti-loosening bolts, passing through the threaded holes of the extension sleeve and the threaded grooves of the extension plate, allow for flexible adjustment of the handle length as needed. The protective sleeve on the surface of the extension sleeve effectively isolates the hands from friction and pressure from metal parts, ensuring operational safety. In addition, the rubber anti-slip layer on the handle works in conjunction with the extension mechanism to ensure stable grip even in its extended state, greatly improving operational comfort and safety. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model.

[0024] Figure 3 This is a cross-sectional structural diagram of the adjustment mechanism of this utility model.

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the extension mechanism of this utility model.

[0026] Figure 5 This is a schematic diagram of the overall working structure of this utility model.

[0027] The attached figures are labeled as follows: 1. Fixed blade; 2. Moving blade; 3. Handle; 4. Slide groove; 5. Slider; 6. Threaded rod; 7. Adjusting knob; 8. Central adjusting cylinder; 9. Auxiliary adjusting cylinder; 10. First spring; 11. Second spring; 12. Adjusting rod; 13. First limiting ring; 14. Second limiting ring; 15. Slot; 16. Insert block; 17. Extension plate; 18. Extension sleeve; 19. U-shaped insert plate; 20. Threaded groove; 21. Threaded hole; 22. Anti-loosening bolt; 23. Protective sleeve; 24. Rubber anti-slip layer. Detailed Implementation

[0028] 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.

[0029] The embodiments disclosed in this application are as follows: Figure 1-5 The multi-position adjustable crop pruning shears shown include a fixed blade 1, a movable blade 2 hinged to one side of the fixed blade 1, a handle 3 fixedly mounted on one side of both the fixed blade 1 and the movable blade 2, and an adjustment mechanism fixedly mounted on the surface of the handle 3.

[0030] The adjustment mechanism includes a groove 4 formed on the surface of the handle 3, a slider 5 is slidably arranged inside the groove 4, a threaded rod 6 is rotatably arranged on one side of the slider 5, and an adjustment knob 7 is fixedly arranged at one end of the threaded rod 6.

[0031] On the other side of the slider 5, a central adjusting cylinder 8 is provided. Inside the central adjusting cylinder 8, two auxiliary adjusting cylinders 9 are slidably arranged. A first spring 10 is fixedly arranged between the two auxiliary adjusting cylinders 9. A second spring 11 is fixedly arranged inside the auxiliary adjusting cylinder 9. An adjusting rod 12 is fixedly arranged at one end of the second spring 11.

[0032] The adjusting rod 12 is slidably disposed inside the auxiliary adjusting cylinder 9. One end of the threaded rod 6 passes through the handle 3 and extends outward from the handle 3. A first limiting ring 13 is fixedly disposed on one side of the auxiliary adjusting cylinder 9. The first limiting ring 13 is slidably connected to the central adjusting cylinder 8. A second limiting ring 14 is fixedly disposed on one side of the adjusting rod 12. The second limiting ring 14 is slidably connected to the auxiliary adjusting cylinder 9. One end of the adjusting rod 12 is connected to the surface of the slider 5.

[0033] Based on the thickness of the branches and leaves of the crop to be pruned, observe the thickness of the branches and leaves of the crop to be pruned, and rotate the adjustment knob 7 according to its specifications. The adjustment knob 7 drives the threaded rod 6, which is fixedly connected to it, to rotate synchronously. The threaded rod 6 is threadedly engaged with the slider 5. The rotation of the threaded rod 6 is converted into the linear sliding of the slider 5 in the slide groove 4. Since one end of the threaded rod 6 extends through the handle 3 to the outside, it is convenient to operate. And the slider 5 can only slide in a specific direction under the restriction of the slide groove 4.

[0034] When the slider 5 moves, since one end of the adjusting rod 12 is connected to the surface of the slider 5, it drives the adjusting rod 12 inside the auxiliary adjusting cylinder 9 to slide relative to the auxiliary adjusting cylinder 9 under the action of the second spring 11. Moreover, the second limiting ring 14 at the other end slides and cooperates with the auxiliary adjusting cylinder 9 to limit the sliding range of the adjusting rod 12.

[0035] Meanwhile, the two auxiliary adjustment cylinders 9 inside the central adjustment cylinder 8 can slide relative to the central adjustment cylinder 8 due to the elastic action of the first spring 10. The first limiting ring 13 on one side of the auxiliary adjustment cylinder 9 slides with the central adjustment cylinder 8 to limit the sliding range of the auxiliary adjustment cylinder 9 and prevent it from detaching from the central adjustment cylinder 8.

[0036] By linking the slider 5, the central adjusting cylinder 8, the auxiliary adjusting cylinder 9 and the adjusting rod 12, the relative position and opening angle between the moving blade 2 and the fixed blade 1 are changed, so as to adjust the gears with different cutting force and effect to meet the pruning needs of branches and leaves of different thicknesses.

[0037] Reference Figure 2-3 As shown, an extension mechanism is provided on one side of the handle 3. The extension mechanism includes a slot 15 opened on the surface of the handle 3. A plug block 16 is inserted into the inside of the slot 15. An extension plate 17 is fixedly provided on one side of the plug block 16. An extension sleeve 18 is sleeved on the surface of the extension plate 17.

[0038] Both the insert block 16 and the handle 3 have fixing grooves on their surfaces. A U-shaped insert plate 19 is inserted into the inside of the fixing groove. The U-shaped insert plate 19 is connected to the handle 3 by bolts.

[0039] If the length of the handle 3 needs to be adjusted to suit different operating requirements, an extension mechanism can be used. Insert the plug 16 into the slot 15 on the surface of the handle 3, and then insert the U-shaped plug 19 into the fixing slot on the surface of the plug 16 and the handle 3, and use bolts to connect the U-shaped plug 19 to the handle 3 to complete the initial fixing.

[0040] Reference Figure 4-5 As shown, the surface of the extension plate 17 is provided with multiple threaded grooves 20, and the surface of the extension sleeve 18 is provided with threaded holes 21. The threaded grooves 20 and the threaded holes 21 are internally connected with anti-loosening bolts 22.

[0041] A protective sleeve 23 is fixedly provided on the surface of the extension sleeve 18, and a rubber anti-slip layer 24 is fixedly provided on the surface of the handle 3;

[0042] Adjust the position of the extension sleeve 18 on the extension plate 17 according to actual needs. Tighten the anti-loosening bolt 22 by passing it through the threaded hole 21 on the surface of the extension sleeve 18 and the corresponding threaded groove 20 on the surface of the extension plate 17 to fix the position of the extension sleeve 18. The protective sleeve 23 on the surface of the extension sleeve 18 can protect the hands and prevent injury during operation.

[0043] Because the handle 3 has a rubber anti-slip layer 24 fixedly installed on its surface, it provides a good grip and anti-slip effect, making it convenient and stable to operate.

[0044] Working principle of this utility model:

[0045] This utility model is a multi-position adjustable crop pruning shears. When using the device, hold the handle 3. Since the surface of the handle 3 is fixedly provided with a rubber anti-slip layer 24, it can provide a good grip and anti-slip effect, making it convenient and stable to operate.

[0046] If the length of the handle 3 needs to be adjusted to suit different operating requirements, an extension mechanism can be used. Insert the plug 16 into the slot 15 on the surface of the handle 3, and then insert the U-shaped plug 19 into the fixing slot on the surface of the handle 3 and the plug 16 and the handle 3, and use bolts to connect the U-shaped plug 19 to the handle 3 to complete the initial fixing.

[0047] Next, adjust the position of the extension sleeve 18 on the extension plate 17 according to actual needs. Tighten the anti-loosening bolt 22 by passing it through the threaded hole 21 on the surface of the extension sleeve 18 and the corresponding threaded groove 20 on the surface of the extension plate 17 to fix the position of the extension sleeve 18. The protective sleeve 23 on the surface of the extension sleeve 18 can protect the hands and prevent injury during operation.

[0048] Next, observe the thickness of the branches and leaves of the crop to be pruned, and rotate the adjustment knob 7 according to its specifications. The adjustment knob 7 drives the threaded rod 6, which is fixedly connected to it, to rotate synchronously. The threaded rod 6 and the slider 5 are threadedly engaged. The rotation of the threaded rod 6 is converted into the linear sliding of the slider 5 in the groove 4. Since one end of the threaded rod 6 extends through the handle 3 to the outside, it is convenient to operate. And the slider 5 can only slide in a specific direction under the restriction of the groove 4.

[0049] When the slider 5 moves, since one end of the adjusting rod 12 is connected to the surface of the slider 5, it drives the adjusting rod 12 inside the auxiliary adjusting cylinder 9 to slide relative to the auxiliary adjusting cylinder 9 under the action of the second spring 11. Moreover, the second limiting ring 14 at the other end slides and cooperates with the auxiliary adjusting cylinder 9 to limit the sliding range of the adjusting rod 12.

[0050] Meanwhile, the two auxiliary adjustment cylinders 9 inside the central adjustment cylinder 8 can slide relative to the central adjustment cylinder 8 due to the elastic action of the first spring 10. The first limiting ring 13 on one side of the auxiliary adjustment cylinder 9 slides with the central adjustment cylinder 8 to limit the sliding range of the auxiliary adjustment cylinder 9 and prevent it from detaching from the central adjustment cylinder 8.

[0051] By linking the slider 5, the central adjusting cylinder 8, the auxiliary adjusting cylinder 9 and the adjusting rod 12, the relative position and opening angle between the moving blade 2 and the fixed blade 1 are changed, so as to achieve the adjustment of different cutting force and effect to meet the pruning needs of branches and leaves of different thicknesses.

[0052] Then, when pruning, place the crop branches and leaves to be pruned steadily between the moving blade 2 and the fixed blade 1, ensuring that the branches and leaves are in the appropriate cutting position. Then, pinch the handle 3, and the handle 3 rotates around the hinge point with the fixed blade 1 and the moving blade 2, causing the moving blade 2 to rotate relative to the fixed blade 1, thus completing the pruning of the branches and leaves.

[0053] During the cutting process, the previously adjusted setting determines the initial opening and closing angle and cutting force of the moving blade 2 and the fixed blade 1, enabling the scissors to efficiently and accurately trim branches and leaves, ensuring a clean cut and reducing damage to crops.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A crop pruning shears with multi-position adjustable settings, including a fixed blade (1), characterized in that: A movable blade (2) is hinged to one side of the fixed blade (1), and a handle (3) is fixedly provided on one side of both the fixed blade (1) and the movable blade (2). An adjustment mechanism is fixedly provided on the surface of the handle (3). The adjustment mechanism includes a groove (4) formed on the surface of the handle (3), a slider (5) is slidably arranged inside the groove (4), a threaded rod (6) is rotatably arranged on one side of the slider (5), and an adjustment knob (7) is fixedly arranged at one end of the threaded rod (6). A central adjusting cylinder (8) is provided on the other side of the slider (5). Two auxiliary adjusting cylinders (9) are slidably arranged inside the central adjusting cylinder (8). A first spring (10) is fixedly arranged between the two auxiliary adjusting cylinders (9). A second spring (11) is fixedly arranged inside the auxiliary adjusting cylinder (9). An adjusting rod (12) is fixedly arranged at one end of the second spring (11).

2. The multi-position adjustable crop pruning shears according to claim 1, characterized in that: The adjusting rod (12) is slidably disposed inside the auxiliary adjusting cylinder (9), and one end of the threaded rod (6) passes through the handle (3) and extends outward from the handle (3); A first limiting ring (13) is fixedly provided on one side of the auxiliary adjusting cylinder (9). The first limiting ring (13) is slidably connected to the central adjusting cylinder (8). A second limiting ring (14) is fixedly provided on one side of the adjusting rod (12). The second limiting ring (14) is slidably connected to the auxiliary adjusting cylinder (9). One end of the adjusting rod (12) is connected to the surface of the slider (5).

3. The multi-position adjustable crop pruning shears according to claim 2, characterized in that: An extension mechanism is provided on one side of the handle (3). The extension mechanism includes a slot (15) opened on the surface of the handle (3). A plug (16) is inserted into the slot (15). An extension plate (17) is fixedly provided on one side of the plug (16). An extension sleeve (18) is fitted on the surface of the extension plate (17).

4. The multi-position adjustable crop pruning shears according to claim 3, characterized in that: The surfaces of the insert (16) and the handle (3) are provided with fixing grooves, and a U-shaped insert plate (19) is inserted into the inside of the fixing groove. The U-shaped insert plate (19) is connected to the handle (3) by bolts.

5. The multi-position adjustable crop pruning shears according to claim 3, characterized in that: The surface of the extension plate (17) is provided with multiple threaded grooves (20), and the surface of the extension sleeve (18) is provided with threaded holes (21). The threaded grooves (20) and the threaded holes (21) are internally connected with anti-loosening bolts (22).

6. The multi-position adjustable crop pruning shears according to claim 3, characterized in that: The surface of the extension sleeve (18) is fixedly provided with a protective sleeve (23), and the surface of the handle (3) is fixedly provided with a rubber anti-slip layer (24).

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