Transmission structure of pruning shears

Abstract

The utility model discloses a pruning shear transmission structure which comprises a mounting plate, a motor and a support portion are fixedly arranged on the mounting plate, a driven gear is rotatably arranged on the side, away from the motor, of the mounting plate, the driven gear is connected with a driving gear in a meshed mode, and the driving gear is in power connection with the motor. A rotating shaft is fixedly arranged on the driving gear, a limiting block is further fixedly connected to the side, away from the motor, of the mounting plate through a bolt, a limiting clamping groove is formed in the limiting block, and the limiting block and the limiting clamping groove are additionally arranged at the lower end of the rotating shaft, so that the rotating shaft is more stable in transmission operation; strenuous vibration or transmission assembly disengagement and damage caused by pruning of thick branches are avoided.

Description

Technical Field

[0001] The utility model relates to the field of pruning shears, in particular to a transmission structure of pruning shears. Background Art

[0002] A pruning shear is a gardening tool mainly used for pruning, trimming pest and disease branches to keep the tree body beautiful.

[0003] For traditional pruning shears, since only one end of its transmission shaft is fixed, when pruning thick branches, due to the sudden increase in shearing resistance, the transmission shaft is likely to suddenly deflect and the transmission gears are briefly disengaged, resulting in violent vibration during the pruning process or damage to the transmission components. Therefore, the utility model provides a transmission structure of pruning shears to solve the above problems. Summary of the Utility Model

[0004] In order to overcome the defects in the above-mentioned prior art, the utility model provides a transmission structure of pruning shears. By adding a limit block and a limit card slot at the lower end of the rotating shaft, the rotating shaft is more stable during transmission operation, avoiding violent vibration or disengagement and damage of the transmission components when pruning thick branches.

[0005] Technical Solution

[0006] A transmission structure of pruning shears includes a mounting plate, on which a motor and a bracket part are fixedly arranged. A driven gear is rotatably arranged on one side of the mounting plate away from the motor. A driving gear power-connected to the motor is meshed with the driven gear. A rotating shaft is fixedly arranged on the driving gear. A limit block is also fixedly connected to the side of the mounting plate away from the motor by bolts. The limit block is provided with a limit card slot, and the limit card slot catches and supports one end of the rotating shaft away from the motor. A first saw blade and a second saw blade are mounted on the bracket part by bolts. A transmission mechanism is arranged between the driven gear and the first saw blade and the second saw blade.

[0007] Further, a plurality of limit through grooves are penetrated through the first saw blade and the second saw blade, and the bolts penetrate through the bracket part and the limit through grooves to limit the first saw blade and the second saw blade.

[0008] Further, transmission through holes are also penetrated through the first saw blade and the second saw blade.

[0009] Further, the transmission mechanism includes a first transmission piece and a second transmission piece located inside the transmission through hole and fixedly arranged on the driven gear.

[0010] Further, a spacer is arranged between the first transmission piece and the second transmission piece.

[0011] Further, a protective cover is also provided on the lower side of the transmission through hole.

[0012] Beneficial effects

[0013] Compared with the prior art, the utility model has the following beneficial effects: by adding a limiting block and a limiting card slot at the lower end of the rotating shaft, the rotating shaft is more stable during the transmission operation, avoiding severe vibration or damage to the transmission components caused by pruning thick branches. Description of the drawings

[0014] Figure 1 It is a schematic structural diagram of a transmission structure of a pruning shear of the utility model;

[0015] Figure 2 It is a schematic structural diagram of the bracket part and the mounting plate;

[0016] Figure 3 It is a schematic structural diagram of the limiting block and the driving gear;

[0017] Figure 4 It is a schematic structural diagram of the transmission through hole and the limiting through groove;

[0018] Figure 5 It is a schematic structural diagram of the spacer;

[0019] Figure 6 It is a schematic structural diagram of the first transmission piece and the second transmission piece;

[0020] Figure 7 It is a schematic installation structure diagram of the first transmission piece and the second transmission piece;

[0021] Figure 8 It is a part drawing of the limiting block.

[0022] Reference numerals in the drawings

[0023] Transmission mechanism 900, motor 1, first saw blade 2, second saw blade 3, mounting plate 4, bracket part 5, driving gear 6, limiting block 7, rotating shaft 8, driven gear 9, protective cover 10, limiting through groove 11, bolt 12, transmission through hole 13, spacer 14, first transmission piece 15, second transmission piece 16, limiting card slot 17. Specific embodiments

[0024] To better illustrate and explain the content of the utility model, the following is an elaboration in combination with the drawings and implementation examples:

[0025] There is Figures 1 - 8As shown in the figure, the utility model discloses a transmission structure of a pruning shear, which includes a mounting plate 4. A motor 1 and a bracket part 5 are fixedly arranged on the mounting plate 4. A driven gear 9 is rotatably arranged on one side of the mounting plate 4 away from the motor 1. A driving gear 6 power-connected to the motor 1 is meshed with the driven gear 9. A rotating shaft 8 is fixedly arranged on the driving gear 6. A limiting block 7 is also fixedly connected to one side of the mounting plate 4 away from the motor 1 by bolts. The limiting block 7 is provided with a limiting card slot 17, and the limiting card slot 17 clamps and supports one end of the rotating shaft 8 away from the motor 1. A first saw blade 2 and a second saw blade 3 are mounted on the bracket part 5 by bolts 12. A transmission mechanism 900 is arranged between the driven gear 9 and the first saw blade 2 and the second saw blade 3.

[0026] Further, a plurality of limiting through grooves 11 are penetrated through the first saw blade 2 and the second saw blade 3, and the bolts 12 penetrate through the bracket part 5 and the limiting through grooves 11 to limit the first saw blade 2 and the second saw blade 3.

[0027] Further, a transmission through hole 13 is also penetrated through the first saw blade 2 and the second saw blade 3.

[0028] Further, the transmission mechanism 900 includes a first transmission piece 15 and a second transmission piece 16 which are located inside the transmission through hole 13 and are fixedly arranged on the driven gear 9.

[0029] Further, a spacer 14 is arranged between the first transmission piece 15 and the second transmission piece 16.

[0030] Further, a protective cover 10 is also arranged on the lower side of the transmission through hole 13.

[0031] Specifically, during use, the motor 1 is started to drive the driving gear 6 to rotate, and then drive the driven gear 9 to rotate. Then the first transmission piece 15 and the second transmission piece 16 rotate to make the first saw blade 2 and the second saw blade 3 move left and right alternately, realizing the shearing effect.

[0032] At the same time, due to the existence of the limiting block 7 and the limiting card slot 17, the positions of the rotating shaft 8 and the driving gear 6 are more firm, avoiding that when cutting thick branches, the lower end of the driving gear 6 is separated from the driven gear 9 due to excessive resistance, resulting in violent vibration or damage.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the technical solutions of the present utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A pruning shears transmission structure, characterized in that: The invention comprises a mounting plate (4), on which a motor (1) and a bracket (5) are fixedly provided, a driven gear (9) is rotatably provided on a side of the mounting plate (4) away from the motor (1), a driving gear (6) which is meshedly connected to the driven gear (9) and which is dynamically connected to the motor (1), a rotating shaft (8) is fixedly provided on the driving gear (6), a limiting block (7) is fixedly connected to the side of the mounting plate (4) away from the motor (1) by bolts, the limiting block (7) is provided with a limiting slot (17), and the limiting slot (17) clamps and supports an end of the rotating shaft (8) away from the motor (1), a first saw blade (2) and a second saw blade (3) are mounted on the bracket (5) by bolts (12), and a transmission mechanism (900) is provided between the driven gear (9) and the first saw blade (2) and the second saw blade (3).

2. A pruning shears transmission structure according to claim 1, characterized in that: A plurality of limiting through slots (11) are provided through the first saw blade (2) and the second saw blade (3); the bolt (12) passes through the bracket portion (5) and the limiting through slots (11) to limit the first saw blade (2) and the second saw blade (3).

3. A pruning shears transmission structure according to claim 2, characterized in that: The first saw blade (2) and the second saw blade (3) are also penetrated by a transmission through hole (13).

4. A pruning shears transmission structure according to claim 3, characterized in that: The transmission mechanism (900) comprises a first transmission plate (15) and a second transmission plate (16) which are located inside the transmission through hole (13) and fixed to the driven gear (9).

5. A pruning shears transmission structure according to claim 4, characterized in that: A spacer (14) is provided between the first transmission plate (15) and the second transmission plate (16).

6. A pruning shears transmission structure according to claim 5, characterized in that: A protective cover (10) is also provided on the lower side of the transmission through hole (13).

Images