A rechargeable pruner with replaceable blade

Abstract

The utility model relates to the technical field of electric tool discloses a replaceable blade's rechargeable pruning shears, including rechargeable pruning shears body, rechargeable pruning shears body side wall fixedly connected with fixed shell, the fixed shell side wall is provided with the apron, is provided with the fixed mechanism between fixed shell and apron, the buffer mechanism is provided with at rechargeable pruning shears body handle place, the fixed mechanism includes the clamping block and the recessed hole of setting up in apron inside, the fixed shell inside is provided with the cavity, the spring is provided in the cavity inside, the clamping block side wall slidingly connected in the cavity inside, the clamping block side wall slidingly connected in recessed hole inside. In the utility model, by pushing apron, extrude the clamping block into the recessed hole's inside, and then complete apron's disassembly, and the blade is convenient to dismount and replace, through the cooperation between the above structure, has omitted the step of twisting bolt dismounting apron, has improved the efficiency of maintaining and replacing blade.

Description

Technical Field

[0001] This utility model relates to the technical field of power tools, and in particular to a rechargeable pruning shear with replaceable blades. Background Technology

[0002] Pruning shears are widely used in horticulture, fruit tree pruning, and landscaping, for trimming branches, shaping tree canopies, and removing dead branches. With the electrification of gardening tools, traditional manual pruning shears are gradually being replaced by rechargeable pruning shears. Rechargeable pruning shears typically have a built-in battery and use a motor to drive the cutting mechanism, offering advantages such as ease of operation, labor-saving efficiency, and high performance. They are particularly suitable for long-term, large-area pruning operations, significantly reducing labor intensity and improving work efficiency.

[0003] Existing rechargeable pruning shears mostly use bolt-fixed structures for blade maintenance. When users need to replace or clean the blades, they usually need to use tools to loosen the bolts to remove the blade cover. This method is relatively reliable in terms of structural stability, but it is inconvenient in actual operation, especially in outdoor operations or when tools are not available. The disassembly steps are cumbersome and time-consuming, affecting work efficiency. Therefore, a rechargeable pruning shear with replaceable blades is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a rechargeable pruning shear with replaceable blades, aiming to improve the problem of the existing technology requiring tools to loosen bolts to remove the blade cover plate, which is quite troublesome.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rechargeable pruning shear with replaceable blades includes a rechargeable pruning shear body, a fixed shell is fixedly connected to the side wall of the rechargeable pruning shear body, a cover plate is provided on the side wall of the fixed shell, a fixing mechanism is provided between the fixed shell and the cover plate, and a buffer mechanism is provided at the handle of the rechargeable pruning shear body.

[0007] The fixing mechanism includes a locking block and a recessed hole inside the cover plate. The fixing shell has a cavity inside, and a spring is installed inside the cavity. The side wall of the locking block is slidably connected to the cavity and the side wall of the locking block is slidably connected to the recessed hole. A limiting groove is provided inside the fixing shell. A slide bar is fixedly connected to the side wall of the cover plate, and the side wall of the slide bar is slidably connected to the limiting groove.

[0008] As a further description of the above technical solution:

[0009] One end of the spring is fixedly connected to the inside of the cavity, and the other end of the spring is fixedly connected to the side wall of the block.

[0010] As a further description of the above technical solution:

[0011] The rechargeable pruning shears have a bevel gear inside, a blade is slidably connected to the side wall of the fixed shell, a fixing pin is slidably connected inside the blade, a swing tooth is fixedly connected to the side wall of the fixing pin, the swing tooth meshes with the bevel gear, and a second blade is provided on the side wall of the fixing pin.

[0012] As a further description of the above technical solution:

[0013] The fixing pin is internally threaded with a nut, and the fixing shell and the blade are internally slidably connected with a pin.

[0014] As a further description of the above technical solution:

[0015] A gear one is fixedly connected to the side wall of the nut, and a gear two is provided on the side wall of the pin. The gear one and the gear two mesh with each other.

[0016] As a further description of the above technical solution:

[0017] A fixing column is fixedly connected to the side wall of the oscillating tooth, and the fixing column is slidably connected inside the second blade.

[0018] As a further description of the above technical solution:

[0019] The buffer mechanism includes a rubber pad and a finger plate. An annular groove is provided at the handle of the rechargeable pruning shears. The finger plate is embedded inside the rechargeable pruning shears. A retaining ring is fixedly connected to the side wall of the finger plate. The retaining ring is disposed inside the annular groove. The rubber pad is fixedly connected to the side wall of the retaining ring.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by pushing the cover plate, the locking block is squeezed into the interior of the recessed hole, thereby completing the disassembly of the cover plate, which facilitates the disassembly and replacement of the blade. Through the cooperation between the above structures, the step of disassembling the cover plate by twisting the bolt is omitted, thereby improving the efficiency of maintenance and replacement of the blade.

[0022] 2. In this utility model, the rubber pad and finger plate effectively absorb the vibration and rebound force generated during operation. The high elasticity and pressure-resistant rubber can not only significantly reduce the vibration of the hand, but also improve the comfort of grip, thereby reducing fatigue during operation and making it easier for users to use for a long time. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a rechargeable pruning shear with replaceable blades proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the buffer mechanism of a rechargeable pruning shear with replaceable blades proposed in this utility model.

[0025] Figure 3 A schematic diagram of the fixed shell and cover plate separation structure of a rechargeable pruning shear with replaceable blades proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the fixing mechanism of a rechargeable pruning shear with replaceable blades proposed in this utility model.

[0027] Figure 5 This is a schematic diagram of the cover plate of a rechargeable pruning shear with replaceable blades proposed in this utility model.

[0028] Figure 6 This is an exploded view of a rechargeable pruning shear with replaceable blades proposed in this utility model.

[0029] Legend:

[0030] 1. Rechargeable pruning shears body; 2. Fixed shell; 3. Cavity; 4. Spring; 5. Locking block; 6. Limiting groove; 7. Cover plate; 8. Recessed hole; 9. Sliding strip; 10. Bevel gear; 11. Blade 1; 12. Blade 2; 13. Swinging tooth; 14. Fixing pin; 15. Nut; 16. Fixing post; 17. Pin; 18. Gear 1; 19. Gear 2; 20. Annular groove; 21. Snap ring; 22. Rubber pad; 23. Finger plate. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-6This utility model provides an embodiment of a rechargeable pruning shear with replaceable blades, comprising a rechargeable pruning shear body 1, a fixed housing 2 fixedly connected to the side wall of the rechargeable pruning shear body 1, and a cover plate 7 provided on the side wall of the fixed housing 2 to realize the installation and replacement of the blade assembly. A fixing mechanism is provided between the fixed housing 2 and the cover plate 7 to achieve the effect of quick disassembly of the cover plate 7. A buffer mechanism is provided at the handle of the rechargeable pruning shear body 1 to effectively reduce operator hand fatigue and improve the grip. The fixing mechanism includes a locking block 5 and a recessed hole 8 opened inside the cover plate 7 for quick assembly and positioning. The locking mechanism features a cavity 3 inside the fixed housing 2, with a spring 4 inside. A locking block 5 is slidably connected to the side wall of the cavity 3 and to the recess 8, thus positioning and fixing the cover plate 7. A limiting groove 6 is provided inside the fixed housing 2, and a sliding strip 9 is fixedly connected to the side wall of the cover plate 7, slidably connected to the side wall of the limiting groove 6. This ensures the cover plate 7 opens and closes smoothly in a predetermined direction, preventing jamming due to offset. One end of the spring 4 is fixedly connected to the cavity 3, and the other end is fixedly connected to the side wall of the locking block 5, thereby automatically resetting the locking block 5. (This is a description of a rechargeable pruning shear.) The body 1 contains a bevel gear 10, which transmits the rotational power of the motor to the blade assembly. A first blade 11 is slidably connected to the side wall of the fixed housing 2. A fixing pin 14 is slidably connected inside the first blade 11 to connect and drive the blade's movement. A rocker tooth 13 is fixedly connected to the side wall of the fixing pin 14. The rocker tooth 13 meshes with the bevel gear 10. The rotation of the bevel gear 10 drives the rocker tooth 13 to rotate, thereby driving the fixing pin 14 to reciprocate, achieving the shearing action. A second blade 12 is located on the side wall of the fixing pin 14. The second blade 12 forms a shearing engagement with the first blade 11 to complete the branch cutting. The fixing pin 14 contains a screw... The blade is connected by a nut 15, which allows the user to adjust the tightness of the blade or disassemble it by turning the nut 15. A pin 17 is slidably connected inside the fixed housing 2 and the blade 11. A gear 18 is fixedly connected to the side wall of the nut 15, and a gear 2 19 is provided on the side wall of the pin 17. The gear 18 and the gear 2 19 mesh with each other. By rotating or moving the pin 17, the gear 18 and the nut 15 can be rotated, thereby realizing the disassembly and assembly control of the internal structure. A fixed post 16 is fixedly connected to the side wall of the swing tooth 13. The fixed post 16 is slidably connected inside the blade 2 12 to provide support and guidance and prevent the blade from shaking.

[0033] Reference Figures 1-2The buffer mechanism includes a rubber pad 22 and a finger plate 23. An annular groove 20 is provided at the handle of the rechargeable pruning shears body 1. The finger plate 23 is embedded inside the rechargeable pruning shears body 1. A retaining ring 21 is fixedly connected to the side wall of the finger plate 23. The retaining ring 21 is set inside the annular groove 20. The rubber pad 22 is fixedly connected to the side wall of the retaining ring 21. The rubber pad 22 is made of high-elasticity pressure-resistant rubber and has good shock absorption performance. During the operation of the pruning shears, the rubber pad 22 can effectively absorb the mechanical impact and handle rebound force generated during cutting, reduce the vibration of the user's hand, and significantly improve the grip comfort and operation stability.

[0034] Working principle: When it is necessary to disassemble the blade, the cover plate 7 can be pushed to slide along the limiting groove 6 through the concave hole 8, and the locking block 5 can be squeezed into the cavity 3, so that the cover plate 7 is unrestricted, thereby completing the disassembly. Then, the nut 15 can be twisted to remove it from the fixing pin 14, thereby completing the disassembly of the swing gear 13. Then, the pin 17 can be twisted to remove it from the inside of the blade 11, thereby releasing the fixing of the blade 11. At this time, the blade can be replaced. When installing, first install the blade 11 with the fixing shell 2, then put the blade 2 12 on the outside of the fixing pin 14, then insert the fixing pin 14 into the inside of the blade 11 and pass out from the inside of the fixing shell 2, and twist the nut 15 on the outside of the fixing pin 14, thereby completing the initial fixing of the blade. Finally, insert the pin 17 into the inside of the blade 11, so that the gear 2 19 and gear 18 mesh, thereby completing the installation of the blade.

[0035] 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 rechargeable pruner with replaceable blade, comprising a rechargeable pruner body (1), characterized in that: The rechargeable pruning shear body (1) has a fixed shell (2) fixedly connected to its side wall. The fixed shell (2) has a cover plate (7) on its side wall. A fixing mechanism is provided between the fixed shell (2) and the cover plate (7). A buffer mechanism is provided at the handle of the rechargeable pruning shear body (1). The fixing mechanism includes a locking block (5) and a recess (8) inside the cover plate (7). The fixing shell (2) has a cavity (3) inside, and a spring (4) is installed inside the cavity (3). The side wall of the locking block (5) is slidably connected to the cavity (3) and the side wall of the locking block (5) is slidably connected to the recess (8). The fixing shell (2) has a limiting groove (6) inside, and a slide bar (9) is fixedly connected to the side wall of the cover plate (7). The side wall of the slide bar (9) is slidably connected to the limiting groove (6).

2. A rechargeable pruner with replaceable blade according to claim 1, characterized in that: One end of the spring (4) is fixedly connected to the inside of the cavity (3), and the other end of the spring (4) is fixedly connected to the side wall of the block (5).

3. A rechargeable pruner with replaceable blade according to claim 1, characterized in that: The rechargeable pruning shear body (1) is provided with a bevel gear (10) inside. The side wall of the fixed shell (2) is slidably connected to a first blade (11). The first blade (11) is slidably connected to a fixed pin (14). The side wall of the fixed pin (14) is fixedly connected to a swing tooth (13). The swing tooth (13) meshes with the bevel gear (10). The side wall of the fixed pin (14) is provided with a second blade (12).

4. A rechargeable pruning shear with replaceable blades according to claim 3, characterized in that: The fixing pin (14) is internally threaded with a nut (15), and the fixing shell (2) and the blade (11) are internally slidably connected with a pin (17).

5. A rechargeable pruning shear with replaceable blades according to claim 4, characterized in that: The nut (15) is fixedly connected to a gear one (18) on its side wall, and the pin (17) is provided with a gear two (19) on its side wall. The gear one (18) and the gear two (19) mesh with each other.

6. The rechargeable pruning shears with replaceable blades according to claim 5, characterized in that: The side wall of the swing tooth (13) is fixedly connected to a fixing column (16), and the fixing column (16) is slidably connected inside the blade (12).

7. A rechargeable pruning shear with replaceable blades according to claim 1, characterized in that: The buffer mechanism includes a rubber pad (22) and a finger plate (23). An annular groove (20) is provided at the handle of the rechargeable pruning shears body (1). The finger plate (23) is embedded inside the rechargeable pruning shears body (1). A retaining ring (21) is fixedly connected to the side wall of the finger plate (23). The retaining ring (21) is set inside the annular groove (20). The rubber pad (22) is fixedly connected to the side wall of the retaining ring (21).

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