Pruning equipment for fruit tree branches

Abstract

The utility model discloses pruning equipment for fruit tree branches, which comprises a handheld rod, a driving component is arranged in the handheld rod, and a shearing component is further arranged on the handheld rod; the shearing assembly comprises a first blade and a second blade; the shearing assembly further comprises a linkage frame, one end of the linkage frame is connected with one end of the second blade through a first section arm, and the other end of the linkage frame is connected with the first blade through a second section arm in a shaft pin mode. The driving assembly is connected with the linkage frame, and the linkage frame is driven by the driving assembly to move on the central axis of the handheld rod so that the first blade and the second blade can be unfolded or folded. Due to the fact that the handheld rod and the shearing assembly of the device are in the linear state, the branches cannot be hooked when the device shuttles back and forth among the branches. The shearing assembly and the handheld rod are designed in a linear mode, the device can be smoothly inserted into dense branches, and on the basis, the device has the advantages of being exquisite in structure, convenient to use and small in self weight.

Description

Technical Field

[0001] This utility model relates to the technical field of fruit tree pruning equipment, specifically a pruning device for fruit tree branches. Background Technology

[0002] When pruning fruit trees, the main structure of electric shears is basically similar to the patented product with announcement number CN103749165A. Although the above product has excellent pruning effect, when pruning small branches of apple trees, the large size of the shear head and its perpendicular arrangement to the handle make the structure rather bulky. In actual use, it is easy to get caught on branches, making it difficult to maneuver through dense branches, thus affecting pruning efficiency. In addition, the bulky structure also makes it heavy, causing arm soreness and numbness after prolonged use, which also affects pruning efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a pruning device for fruit tree branches to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pruning device for fruit tree branches, comprising a handheld rod, a drive assembly inside the handheld rod, and a shearing assembly on the handheld rod; the shearing assembly includes a first blade and a second blade, and the first blade and the second blade are pin-connected to the handheld rod via a support shaft passing through the handheld rod; the shearing assembly further includes a linkage frame, one end of which is pin-connected to one end of the second blade via a first section arm, and the other end of which is pin-connected to the first blade via a second section arm; the drive assembly is connected to the linkage frame, and the drive assembly causes the linkage frame to move along the central axis of the handheld rod, so that the first blade and the second blade can be opened or closed.

[0005] As a preferred technical solution of this utility model: the driving component includes a through-type lead screw motor, and the lead screw of the lead screw motor is connected to a transmission rod through a reversing sleeve, and the other end of the transmission rod is movably connected to the linkage frame.

[0006] As a preferred technical solution of this utility model: the reversing sleeve has a stepped surface inside, and the transmission rod contacts the stepped surface through a provided boss, and is completely penetrated by a provided first fastener to fix one end of the reversing sleeve to the lead screw of the lead screw motor.

[0007] As a preferred technical solution of this utility model, it further includes a second fastener, and after the second fastener completely penetrates the linkage frame, it fixes the other end of the transmission rod on the linkage frame.

[0008] As a preferred technical solution of this utility model: the side of the reversing sleeve facing the shearing component is also provided with a dust cover, and the outer circumferential surface of the dust cover is in contact with the inner wall surface of the hand handle.

[0009] As a preferred technical solution of this utility model: the handheld lever is also provided with a switch, and the lead screw motor is connected to an external power source through a power cord.

[0010] As a preferred technical solution of this utility model: the hand handle is prismatic in shape, and one end of the hand handle is sealed by an end cap.

[0011] The beneficial effects of this utility model by adopting the above technical solution are as follows: Because the handle and cutting component of the device are in a straight line, the overall structure of the device is relatively simple, and the device will not be interrupted due to snagging on branches when moving among them. In particular, the straight design of the cutting component and handle allows the device to be easily inserted into denser branches. Therefore, the device is compact, easy to use, and lightweight, thus improving the efficiency of pruning branches while being convenient to use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of the shearing component of this utility model when it is in the unfolded state;

[0013] Figure 2 This is a cross-sectional structural diagram of the shearing component of this utility model when it is in a closed state;

[0014] Figure 3 This is a schematic diagram of the main structure of the drive component of this utility model;

[0015] Figure 4 This is an exploded structural diagram of the drive component of this utility model;

[0016] Figure 5 This is an exploded structural diagram of the shearing component of this utility model;

[0017] Figure 6 This is a cross-sectional structural diagram of the reversing sleeve of this utility model.

[0018] In the diagram: 1. Handheld lever; 2. Switch; 3. Shearing assembly; 30. First blade; 31. Second blade; 32. Support shaft; 33. First arm section; 34. Linkage frame; 35. Second arm section; 36. Second fastener; 4. End cap; 5. Drive assembly; 50. Lead screw motor; 51. Reversing sleeve; 52. Transmission rod; 53. Boss; 54. Dust cover; 55. First fastener; 56. Stepped surface; 6. Power cord; 7. Support plate. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.

[0020] Please see Figure 1-6 This utility model provides an embodiment of a pruning device for fruit tree branches, including a handheld rod 1. The handheld rod 1 has a drive assembly 5 inside and a shearing assembly 3. The shearing assembly 3 includes a first blade 30 and a second blade 31, and the first blade 30 and the second blade 31 are pin-connected to the handheld rod 1 via a support shaft 32 passing through it. The shearing assembly 3 also includes a linkage frame 34, one end of which is pin-connected to one end of the second blade 31 via a first section arm 33, and the other end of which is pin-connected to the first blade 30 via a second section arm 35. The drive assembly 5 is connected to the linkage frame 34 and causes the linkage frame 34 to move along the central axis of the handheld rod 1, thereby opening or closing the first blade 30 and the second blade 31.

[0021] In summary, because the handle 1 and the cutting component 3 of this device are in a straight line, the overall structure of the device is relatively simple, and the device will not be interrupted due to snagging on branches when moving among them. In particular, the straight design of the cutting component 3 and the handle 1 allows the device to be easily inserted into relatively dense branches. Based on this, the device has a compact structure, is easy to use, and has a light weight, thus improving the efficiency of pruning branches while being easy to use.

[0022] Furthermore, to mitigate the issue of insufficient torque release during the initial startup of the lead screw motor 50, which could lead to wear and tear on the lead screw over time, the drive assembly 5 includes a through-type lead screw motor 50. The lead screw of the lead screw motor 50 is connected to a transmission rod 52 via a reversing sleeve 51, and the other end of the transmission rod 52 is movably connected to the linkage frame 34. Therefore, by utilizing the reversing sleeve 51 to buffer the torque of the lead screw at the moment of startup of the lead screw motor 50, the lead screw causes the reversing sleeve 51 to rotate slightly on the transmission rod 52, thus releasing the torque of the lead screw and extending its service life.

[0023] Specifically, the reversing sleeve 51 has a stepped surface 56 inside, and the transmission rod 52 contacts the stepped surface 56 through a boss 53. A first fastener 55 completely penetrates the reversing sleeve 51 to fix one end of the reversing sleeve 51 to the lead screw of the lead screw motor 50. Therefore, when the first fastener 55 fixes one end of the reversing sleeve 51 to the lead screw, the boss 53 on the transmission rod 52 rotates within the stepped surface 56, thus allowing the reversing sleeve 51 to release the torque at the moment of start-up of the lead screw while simultaneously transmitting power.

[0024] Furthermore, the device also includes a second fastener 36, which completely penetrates the linkage frame 34 and fixes the other end of the transmission rod 52 to the linkage frame 34. This makes it easy to assemble and disassemble the transmission rod 52 and the linkage frame 34, thereby facilitating the assembly and disassembly of the drive assembly 5 and the shearing assembly 3. Preferably, the first fastener 55 and the second fastener 36 are bolts.

[0025] Furthermore, since the reversing sleeve 51 is also provided with a dust cover 54 on the side facing the shearing assembly 3, and the outer circumferential surface of the dust cover 54 is in contact with the inner wall surface of the handheld rod 1, the dust cover 54 can slide on the inner wall surface of the handheld rod 1. This reduces the amount of debris entering the lead screw motor 50 and thus preventing damage to the lead screw motor 50. At the same time, the dust cover 54 also supports the transmission rod 52, ensuring that the transmission rod 52 can slide in a directional manner and that there is no shaking during power transmission.

[0026] Based on the above solution, since the handheld lever 1 is also equipped with a switch 2, the drive assembly 5 can be turned on and off via the switch 2. Simultaneously, the lead screw motor 50 is connected to an external power source via a power cord 6, allowing the power supply to be separated from the device itself. This reduces the overall weight of the device, making it easier to hold. The power supply for the device can be placed in the user's pocket or carried in a backpack.

[0027] Furthermore, since the handheld lever 1 is a polygonal prism, to prevent slippage during use, one end of the handheld lever 1 is sealed by the end cap 4, thus preventing impurities from entering the interior of the handheld lever 1. Additionally, the lead screw motor 50 is mounted on a support plate 7 inside the handheld lever 1. Therefore, when the end cap 4 is removed, a wrench can be easily inserted into the handheld lever 1 to tighten the bolts of the lead screw motor 50 onto the support plate 7.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is clear to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A pruning device for fruit tree branches, characterized in that: Includes a handheld lever (1), the handheld lever (1) is provided with a drive assembly (5) inside, and the handheld lever (1) is also provided with a shearing assembly (3); The shearing assembly (3) includes a first blade (30) and a second blade (31), and the first blade (30) and the second blade (31) are connected to the hand handle (1) by a support shaft (32) passing through the hand handle (1); The shearing assembly (3) also includes a linkage frame (34), one end of which is connected to one end of the second blade (31) via a first section arm (33), and the other end of which is connected to the first blade (30) via a second section arm (35). The drive assembly (5) is connected to the linkage frame (34) and causes the linkage frame (34) to move on the central axis of the hand handle (1) so that the first blade (30) and the second blade (31) can be opened or closed.

2. The pruning device for fruit tree branches according to claim 1, characterized in that: The drive assembly (5) includes a through-type lead screw motor (50), and the lead screw of the lead screw motor (50) is connected to a transmission rod (52) through a reversing sleeve (51), and the other end of the transmission rod (52) is movably connected to the linkage frame (34).

3. The pruning device for fruit tree branches according to claim 2, characterized in that: The reversing sleeve (51) has a stepped surface (56) inside, and the transmission rod (52) contacts the stepped surface (56) through the provided boss (53), and is completely penetrated through the reversing sleeve (51) by the provided first fastener (55) to fix one end of the reversing sleeve (51) to the lead screw of the lead screw motor (50).

4. The pruning device for fruit tree branches according to claim 3, characterized in that: It also includes a second fastener (36), and after the second fastener (36) completely penetrates the linkage frame (34), it fixes the other end of the transmission rod (52) onto the linkage frame (34).

5. A pruning device for fruit tree branches according to claim 4, characterized in that: The reversing sleeve (51) is also provided with a dust cover (54) on the side facing the shearing assembly (3), and the outer circumferential surface of the dust cover (54) is in contact with the inner wall surface of the hand handle (1).

6. A pruning device for fruit tree branches according to any one of claims 2-5, characterized in that: The handheld lever (1) is also equipped with a switch (2), and the lead screw motor (50) is connected to an external power source through a power cord (6).

7. A pruning device for fruit tree branches according to claim 6, characterized in that: The handheld lever (1) is prismatic in shape and one end of the handheld lever (1) is sealed by an end cap (4).

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