Inverted double-blade linkage electric branch shears

Abstract

The inverted double-blade linkage electric branch shears has the bevel teeth reversed at the other end of the motor relative to the upper and lower blades. Upper and lower swing teeth are set on both sides of the motor. The swing teeth are respectively connected to the upper and lower blades through shafts. The upper and lower swing teeth are respectively engaged with the bevel teeth of the motor. The rotation of the bevel teeth drives the swing teeth to move up and down respectively. At the same time, the linkage knife generates shearing force to achieve the function of shearing branches.

Description

Technical Field

[0001] The invention relates to an electric tree branch shear, in particular to an electric tree branch shear with a motor reversed and linked double blades. Background Art

[0002] Garden scissors are widely used for pruning tree branches. The structure of the existing electric garden branch shears is that the motor drives the swing teeth to rotate through the motor gear transmission. One of the upper and lower blades is fixed, and the swing teeth are linked to the other blade. The shearing force is only manifested on one blade. Because the swing teeth only link one blade, the swing teeth run a long distance, and the motor takes a long time to start each time, resulting in a large amount of motor power consumption. In addition, the existing electric branch shears use one blade for shearing, and one side of the branch cut will produce an indentation, which expands the wound area of ​​the branch and has adverse consequences for the re-healing of the branch. Chinese patent, patent number; 2020200171453, application name; double-blade linkage electric garden branch shears, this patent realizes double-blade linkage under the double swing tooth structure. According to its description, the swing tooth force arm is short and the motor is front-mounted. When shearing branches with larger tree diameters, the torque used is large, and a larger power motor is required, which is very easy to cause instability during use. The inverted double-blade linkage electric branch shears adopts a rear-positioned swing tooth structure and a rear-positioned motor power output bevel tooth to lengthen its lever arm. According to the principle of leverage, the motor torque is smaller than that of the double-blade linkage electric garden branch shears, and the operation is stable. In addition, due to the rear-positioned motor power output bevel tooth, there is no swing tooth or other parts design in the working part of the scissors blade, and the working part is flat. There is relatively less interference during use, so the scissors can be used better and the use efficiency is improved. Summary of the invention

[0003] The present invention proposes an inverted double-blade linkage electric branch shears, in which the bevel teeth are inverted at the other end of the motor relative to the upper and lower blades, and upper and lower swing teeth are arranged on both sides of the motor. The swing teeth are respectively connected to the upper and lower blades through shafts, and the upper and lower swing teeth are respectively meshed with the bevel teeth of the motor. The rotation of the bevel teeth drives the swing teeth to move up and down respectively, and the linkage knife generates a shearing force to achieve the function of shearing branches.

[0004] The technical solution to solve the above problems is that the inverted double-blade linkage electric branch shears are respectively composed of a shell, upper and lower blades, upper and lower swing teeth, a shaft, a swing tooth locating pin, a blade locating pin, a blade hole, a tool holder, a motor, and an umbrella tooth. The connection relationship is that the above components are placed in the shell, one end of the upper and lower blades is provided with an axis hole, the upper blade hole is connected to the upper swing tooth axis hole by an axis, and their position is fixed by connecting the blade locating pin and the swing tooth locating pin to each other, the lower blade hole is connected to the lower swing tooth axis hole by an axis, and their position is fixed by connecting the blade locating pin and the swing tooth locating pin to each other, the axis is connected to the tool holder, the upper and lower blades can be linked with the upper and lower swing teeth, a motor is installed between the upper and lower swing teeth, one end of the motor is installed with an umbrella tooth, and the umbrella tooth is meshed with the swing tooth teeth arranged at one end of the upper and lower swing teeth.

[0005] To realize the function of the inverted double-blade linkage electric tree branch shears, blade holes are respectively provided on the upper and lower blades, and the shaft can pass through the blade holes. Swing tooth holes are provided on the upper and lower swing teeth, and the shaft can pass through the holes. The upper and lower blades are fixed in position with the upper and lower swing teeth through blade positioning pins and swing tooth positioning pins, that is, the upper blade is fixed in position with the upper swing tooth, and the lower blade is fixed in position with the lower swing tooth. When the upper and lower swing teeth are rotated, the blades can be rotated at the same time through the shaft, that is, they rotate with the shaft as the center of the circle, so that the upper swing tooth can be displaced inward, the upper blade can be displaced outward, the lower swing tooth can be displaced inward, and the lower blade can be displaced outward at the same time. Similarly, when the upper and lower swing teeth are displaced up and down, the upper and lower blades can be driven to move, and opening and closing can be realized with the shaft as the center of the circle, and the opening and closing of the blades are formed. The shearing function proposed in the present invention can be realized. The shaft is installed on the tool holder, and a motor is installed between the upper and lower swing teeth. An umbrella tooth is installed at one end of the motor. The umbrella tooth is meshed with the upper and lower swing teeth. The meshing of the upper and lower swing teeth is located on both sides of the umbrella tooth. When the umbrella tooth rotates, the upper and lower swing teeth can be driven to rotate with the shaft as the center of the circle at the same time. The umbrella tooth rotates forward and reversely, and the upper and lower swing teeth meshed thereon can also be displaced up and down. The blade can be driven to open and close through the shaft, and the opening and closing of the blade can generate shearing force. A motor is installed between the two sides of the upper and lower swing teeth. The motor has its designed length, so the swing tooth force arm is longer, and the required motor output torque is smaller. The working parts of the upper and lower blades have no structural parts, are relatively flat, and there is no interference between parts. The scissors improve work efficiency during use.

[0006] In the use of the inverted double-blade linkage electric branch shears, the trigger is located on the shell, the shell is also a handle, and part of the shell is the grip of the hand during use. The trigger on the shell is pulled. It is particularly pointed out that the present invention does not make claims for the circuit part. The circuit part is the prior art and will not be repeated here. The rotation of the motor drives the bevel gear to rotate. The motor rotates forward and reversely, and the bevel gear can also rotate forward and reversely. The bevel gear can drive the upper and lower swing teeth engaged thereon to rotate with the axis as the center of the circle and drive the blade to form a shearing force. When the bevel gear rotates, the upper and lower swing teeth on both sides engaged thereon, according to the gear motion characteristics, the upper swing tooth on one side can form a clockwise rotation, and the lower swing tooth on the other side can form a counterclockwise rotation, and vice versa. When the bevel gear continuously rotates forward and reversely, the upper and lower blades connected to the upper and lower swing teeth can be continuously opened and closed through the shaft to realize the basic function of shearing branches. The upper and lower swing teeth and the upper and lower blades are connected to the shaft through the upper and lower swing tooth holes and the upper and lower blade holes. The upper and lower swing teeth and the upper and lower blades are fixed in position through the swing tooth locating pins and the blade locating pins. The shaft is installed on the tool holder, and the tool holder plays the role of fixing the shaft.

[0007] In the above content, upper and lower blades refer to upper blade and lower blade respectively, upper and lower swing teeth refer to upper swing teeth and lower swing teeth respectively, blade holes refer to upper blade holes and lower blade holes respectively, and upper and lower swing tooth holes refer to upper swing tooth holes and lower swing tooth holes respectively.

[0008] In summary, the present invention can be realized.

[0009] The following is further described with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 ; Schematic diagram of the exploded components of the present invention

[0011] Figure 2 ; A three-dimensional schematic diagram of a closed blade of the present invention

[0012] Figure 3 ; A three-dimensional schematic diagram of the blade of the present invention in an open state

[0013] 1. Housing 2. Upper swing tooth 3. Upper swing tooth hole 4. Swing tooth positioning pin 5. Shaft 6. Tool holder 7. Lower swing tooth 8. Lower swing tooth hole 9. Upper blade 9-1 blade hole 10. Lower blade 11. Blade positioning pin 12. Motor 13. Bevel tooth 14. Swing tooth 15. Trigger. DETAILED DESCRIPTION

[0014] according to Figure 1 This figure is an exploded view of the components of the present invention, and is based on the motor (12), decomposed from the vertical side and the vertical axial direction, to illustrate the specific spatial position of the structure of the present invention.

[0015] Figure 1 , Figure 2Combined with Figure 3 The inverted double-blade linkage electric branch shears are respectively composed of a housing, upper and lower blades, upper and lower swing teeth, a shaft (5), a swing tooth positioning pin (4), a blade positioning pin (11), a blade hole (9-1), a knife holder (6), a motor (12), and an umbrella tooth (13). The connection relationship is that the above components are placed in the housing, one end of the upper and lower blades is provided with a shaft (5) hole, the upper blade hole (9-1) is connected to the shaft (5) hole of the upper swing tooth (2) through the shaft (5), and its position is fixed by the blade positioning pin (11) and The swing gear positioning pins (4) are connected to each other, the lower blade hole (9-1) and the lower swing gear (7) shaft (5) hole are connected through the shaft (5), and the position is fixed by connecting the blade positioning pin (11) and the swing gear positioning pin (4) to each other, and the shaft (5) is connected to the tool holder (6), so that the upper and lower blades and the upper and lower swing gears can be linked, and a motor (12) is installed between the upper and lower swing gears, and an umbrella gear (13) is installed at one end of the motor (12), and the umbrella gear (13) and the swing gear teeth (14) arranged at one end of the upper and lower swing gears are mutually connected.

[0016] Meshing.

[0017] The function of the inverted double-blade linkage electric tree branch shears is realized by providing a blade hole (9-1) on the upper and lower blades respectively, the blade hole (9-1) can pass through the shaft (5), the upper and lower swing teeth are provided with a swing tooth hole, the shaft (5) can pass through the hole, the upper and lower blades are fixed in position with the upper and lower swing teeth through the blade positioning pin (11) and the swing tooth positioning pin (4), that is, the upper blade (9) is fixed in position with the upper swing tooth (2), and the lower blade (10) is fixed in position with the lower swing tooth (7). When the upper and lower swing teeth are rotated, the blades can be rotated at the same time through the shaft (5), that is, the upper swing tooth (2) can be rotated with the shaft (5) as the center of the circle, and the upper blade (9) can be displaced outward, the lower swing tooth (7) can be displaced inward, and the lower blade (10) can be displaced outward at the same time. Similarly, when the upper and lower swing teeth are displaced up and down, the upper and lower blades can be driven to move, and the opening and closing of the blades can be realized with the shaft (5) as the center of the circle. The shearing formed by the combination can realize the branch cutting function proposed by the present invention. The shaft (5) is installed on the knife frame (6). A motor (12) is installed between the upper and lower swing teeth. An umbrella tooth (13) is installed at one end of the motor (12). The umbrella tooth (13) meshes with the upper and lower swing teeth. The upper and lower swing teeth mesh at both sides of the umbrella tooth (13). When the umbrella tooth (13) rotates, the upper and lower swing teeth can be driven to rotate with the shaft (5) as the center of the circle at the same time. The umbrella tooth (13) rotates forward and reversely. The upper and lower swing teeth meshed thereon can also move up and down. The blade can be driven to open and close through the shaft (5). The opening and closing of the blade can generate a shearing force. A motor (12) is installed between the two sides of the upper and lower swing teeth. The motor (12) has its designed length. Therefore, the swing tooth force arm is longer, and the required output torque of the motor (12) is smaller. The working parts of the upper and lower blades have no structural parts and are relatively flat. There is no interference between parts. The scissors improve work efficiency during use.

[0018] In the use of the inverted double-blade linkage electric tree shears, the trigger (15) is located on the housing (1), and the housing (1) is also a handle. Part of the housing (1) is the gripping part of the hand during use. The trigger (15) on the housing (1) is pulled. It is particularly pointed out that the present invention does not make claims for the circuit part. The circuit part is the prior art and is not described here. The motor (12) rotates to drive the bevel gear (13) to rotate. The motor (12) rotates forward and reverse, and the bevel gear (13) can also rotate forward and reverse. The bevel gear (13) can drive the upper and lower swing teeth meshed thereon to rotate with the shaft (5) as the center of the circle and drive the blade to rotate at the same time, so that the blade can form a shearing force. When the bevel gear (13) rotates, the position meshed thereon The upper and lower swing teeth on both sides, according to the gear motion characteristics, the upper swing teeth (2) on one side can form a clockwise rotation, and the lower swing teeth (7) on the other side can form a counterclockwise rotation, and vice versa. When the bevel teeth (13) continuously rotate forward and reverse, the upper and lower blades connected to the upper and lower swing teeth can be continuously opened and closed through the shaft (5), thereby realizing the basic function of shearing branches. The upper and lower swing teeth and the upper and lower blades are connected to the shaft (5) through the upper and lower swing teeth holes (8) and the upper and lower blade holes (9-1). The upper and lower swing teeth and the upper and lower blades are fixed in position through the swing gear positioning pins (4) and the blade positioning pins (11). The shaft (5) is installed on the tool holder (6), and the tool holder (6) plays the role of fixing the shaft (5).

[0019] In the above content, the upper and lower blades refer to the upper blade (9) and the lower blade (10), respectively; the upper and lower swing teeth refer to the upper swing teeth (2) and the lower swing teeth (7), respectively; the blade hole (9-1) refers to the upper blade hole (9-1) and the lower blade hole (9-1), respectively; and the upper and lower swing tooth holes refer to the upper swing tooth (3) and the lower swing tooth hole (8), respectively.

[0020] In summary, the present invention can be realized.

Claims

1. An inverted double-blade linkage electric tree shears, characterized in that: The bevel teeth (13) of the inverted double-blade linkage electric tree branch shears are inverted at the other end of the motor (12) relative to the upper blade (9) and the lower blade (10); upper swing teeth (2) and lower swing teeth (7) are arranged on both sides of the motor (12); the upper swing teeth (2) are connected to the upper blade (9) via a swing tooth positioning pin (4); the lower swing teeth (7) are connected to the lower blade (10) via a blade positioning pin (11); and the bevel teeth (13) are meshed with swing teeth (14) arranged at one end of the upper swing teeth (2) and the lower swing teeth (7).

2. The inverted double-blade electric branch shears according to claim 1, characterized in that: The upper swing tooth hole (3) and the lower swing tooth hole (8) are respectively connected to the lower blade (10) and the upper blade (9) through a shaft (5).

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