An intelligent electric shear

By using a trigger pulse generator in electric shear to control the shearing and angle of the scissor assembly, the problem of uncontrollable speed and position during the closure of existing electric shears is solved, safety and controllability are improved, and the scope of application is wider.

CN112171724BActive Publication Date: 2025-06-03SHENZHEN TECH UNIV
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Patent Information

Application Number
CN202011215268.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-11-04
Publication Date
2025-06-03
Estimated Expiration
2040-11-04

AI Technical Summary

Technical Problem

The closing speed and position of existing electric shears are uncontrollable during closing, which can easily lead to injury accidents due to accidents due to accidental triggering, poor safety, and the operator cannot manually control the scissors to any angle position, so the use is limited.

Method used

The trigger pulse generator is used as the control signal source for intelligent electric shears. By manually operating the trigger pulse generator, a single or continuous pulse signal is emitted, controlling the shearing and angle of the scissor assembly to achieve a controllable shearing speed and angle.

Benefits of technology

The controllability and safety of electric shears are improved. Users can intelligently control the shear angle of the scissor assembly and synchronous motion with the trigger, which has a wider range of application and improved product reliability and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of electric shears, and provides an intelligent electric shear, comprising: an intelligent electric shear body; a trigger type pulse generator, which is arranged on the intelligent electric shear body and is used for emitting single or multiple continuous pulse signals; a circuit board, the trigger type pulse generator is electrically connected to the circuit board; a driving component, the circuit board is electrically connected to the driving component; a scissors component, the driving component is connected to the scissors component to drive the scissors component to cut and can drive the scissors component to form any cutting angle. The intelligent electric shear provided by the present invention uses a trigger type pulse generator as the control signal source of the intelligent electric shear to emit single or continuous pulse signals, so that the scissors component cuts and can make the scissors component cut to form any cutting angle, with strong controllability and safer use; the cutting angle of the scissors component is under the real-time control of the trigger type pulse generator, without delay, improving the product reliability.
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Description

Technical Field

[0001] The present invention relates to the technical field of electric shears, and more specifically, to an intelligent electric shear. Background Art

[0002] Electric scissors are often used to trim tree branches to maintain the beautiful shapes of trees and shrubs. Electric shears can achieve the effect of labor saving. For example, pulling the trigger switch once emits a closing signal to control the scissors to perform a shearing action, that is, closing; releasing the trigger to reset emits an opening signal to control the scissors to perform an opening action, that is, opening. However, for the electric shears in the prior art, there are only two positions for controlling the opening and closing of the electric shears, namely the open position (the two scissor blades cross and open) and the closed position (the cutting edges of the two scissor blades are closed). The closing process is the shearing process, and the closing speed and position during the closing process are uncontrollable. Once accidentally triggered, it is extremely easy to cause injury accidents, with poor safety. Moreover, the operator cannot manually control the closed position of the scissors to any angular position, resulting in limited use. Summary of the Invention

[0003] The purpose of the present invention is to provide an intelligent electric shear to solve the technical problems that the electric shears in the prior art only have an open position and a closed position, the closing speed and position during the closing process are uncontrollable, once accidentally triggered, it is extremely easy to cause injury accidents, with poor safety, and the operator cannot manually control the closed position of the scissors to any angular position, resulting in limited use.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] The present invention provides an intelligent electric shear, including:

[0006] An intelligent electric shear body;

[0007] A trigger type pulse generator, which is arranged on the intelligent electric shear body and is used to emit single or multiple continuous pulse signals;

[0008] A circuit board, and the trigger type pulse generator is electrically connected to the circuit board;

[0009] A drive assembly, and the circuit board is electrically connected to the drive assembly;

[0010] A scissor assembly, and the drive assembly is connected to the scissor assembly to drive the scissor assembly to cut and close, and can drive the scissor assembly to form any cutting and closing angle.

[0011] According to the above-mentioned intelligent electric shear, the trigger type pulse generator includes:

[0012] A fixed piece, and the fixed piece is connected to the housing included in the intelligent electric shear body;

[0013] A moving blade, which is rotatably connected to the fixed blade;

[0014] A handle, which is fixedly connected to the moving blade and extends outside the housing;

[0015] A pulse generating unit, which is disposed between the fixed blade and the moving blade. The pulse generating unit is electrically connected to the circuit board and can generate a pulse signal through the rotation of the moving blade relative to the fixed blade and transmit it to the circuit board.

[0016] According to the intelligent electric scissors described above, the trigger - type pulse generator further includes a torsion spring;

[0017] On one side of the fixed blade close to the moving blade, there is a first card slot. On one side of the moving blade close to the fixed blade, there is a second card slot. The torsion spring is disposed between the fixed blade and the moving blade, and the first positioning convex block of the torsion spring is disposed in the first card slot, and the second positioning convex block of the torsion spring is disposed in the second card slot.

[0018] According to the intelligent electric scissors described above, the driving assembly includes:

[0019] A driving module, the circuit board is electrically connected to the driving module;

[0020] A driving mechanism, the driving mechanism includes:

[0021] A driving motor, the driving module is bidirectionally electrically connected to the driving motor;

[0022] A displacement adjusting assembly, one end of the displacement adjusting assembly is connected to the driving motor, and the other end of the displacement adjusting assembly is connected to the scissors assembly.

[0023] According to the intelligent electric scissors described above, the displacement adjusting assembly includes:

[0024] A ball screw, the ball screw is connected to the driving motor, and an arc - shaped spiral groove is provided on the outside of the ball screw;

[0025] A lead screw nut, the lead screw nut is connected to the scissors assembly, the lead screw nut is sleeved outside the ball screw, and the arc - shaped spiral groove is filled with balls. When the ball screw rotates relative to the lead screw nut, an axial displacement occurs between the ball screw and the lead screw nut.

[0026] According to the intelligent electric scissors described above, the driving mechanism further includes at least one connecting rod, one end of the connecting rod is connected to the lead screw nut, and the other end of the connecting rod is connected to the scissors assembly.

[0027] According to the intelligent electric shear described above, the number of the connecting rods is two. The two connecting rods are respectively arranged on both sides of the lead screw nut and connected to the outer side wall of the lead screw nut, and the two connecting rods are centrosymmetric.

[0028] According to the intelligent electric shear described above, the scissors assembly includes:

[0029] A moving scissors blade, which is connected to the connecting rod;

[0030] A fixed scissors blade, which is connected to the moving scissors blade, and the moving scissors blade can rotate relative to the fixed scissors blade. The fixed scissors blade is also connected to the housing of the intelligent electric shear body.

[0031] According to the intelligent electric shear described above, a first pin hole is provided on the moving scissors blade, a second pin hole is provided on the fixed scissors blade, the pin sequentially passes through the second pin hole and the first pin hole, and the end of the pin is connected to a lock washer arranged on the side of the moving scissors blade away from the fixed scissors blade.

[0032] According to the intelligent electric shear described above, the intelligent electric shear further includes a power supply module, and the power supply module is electrically connected to the circuit board, the trigger pulse generator and the drive assembly.

[0033] The beneficial effects of the intelligent electric shear provided by the present invention are at least as follows:

[0034] (1) For the intelligent electric shear provided in this embodiment, a trigger pulse generator is used as the control signal source of the intelligent electric shear. That is, a single or continuous pulse signal can be sent by manually operating the trigger pulse generator, so that the scissors assembly can be closed, and the scissors assembly can be closed to form any closing angle and a controllable closing speed. It has strong controllability and is safer to use. Thus, the closing angle of the scissors assembly is intelligently controlled to move synchronously with the trigger, and the applicable range is wider.

[0035] (2) For the intelligent electric shear provided in this embodiment, the closing angle and speed of the scissors assembly are synchronously controlled by the trigger pulse generator in real time, without delay, which improves the reliability of the product and also improves the user experience. Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1Schematic structural diagram of the intelligent electric shear provided by the embodiment of the present invention;

[0038] Figure 2 Schematic circuit structure diagram of the control principle of the intelligent electric shear provided by the embodiment of the present invention;

[0039] Figure 3 Exploded structural diagram of the intelligent electric shear provided by the embodiment of the present invention;

[0040] Figure 4 Exploded structural diagram of the trigger pulse generator provided by the embodiment of the present invention;

[0041] Figure 5 Another perspective exploded structural diagram of the trigger pulse generator provided by the embodiment of the present invention;

[0042] Figure 6 Schematic structural diagram of the drive mechanism and the scissor assembly provided by the embodiment of the present invention;

[0043] Figure 7 Exploded structural diagram of the drive mechanism and the scissor assembly provided by the embodiment of the present invention.

[0044] Among them, each reference numeral in the figure:

[0045]

[0046] Detailed implementation manners

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0048] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly or indirectly located on that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position based on the orientation or position shown in the drawings, and are only for the convenience of description and cannot be construed as a limitation to the technical solution of the present invention. The terms "first" and "second" are only used for the purpose of convenient description and cannot be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0049] Please refer toFigures 1 to 3 , this embodiment provides an intelligent electric shear 100, including: an intelligent electric shear body; a trigger pulse generator 10, the trigger pulse generator 10 is arranged on the intelligent electric shear body, and the trigger pulse generator 10 is used for emitting single or multiple continuous pulse signals; a circuit board 20, the trigger pulse generator 10 is electrically connected to the circuit board 20; a driving component, the circuit board 20 is electrically connected to the driving component; a scissor component 50, the driving component is connected to the scissor component 50 to drive the scissor component 50 to shear, and can drive the scissor component 50 to form any shearing angle. Optionally, the control chip on the circuit board can be HC32M140 or Siemens IPC427D. It should be understood that the model of the control chip is not limited to the above situation, and it can also be other models, which are not restricted here.

[0050] The working principle of the intelligent electric shear 100 provided by this embodiment is as follows:

[0051] For the intelligent electric shear 100 provided by this embodiment, its trigger pulse generator 10 emits single or multiple continuous pulse signals and transmits them to the circuit board 20. The circuit board 20 issues a driving signal to the driving component. The driving component drives the scissor component 50 to shear and can form any shearing angle corresponding to the number of pulses. When the trigger pulse generator 10 emits a reverse pulse signal, through the action of the driving component, the scissor component 50 moves in the reverse direction, and can stop at any position or return to the original position, that is, the open position, corresponding to the number of pulses, so as to intelligently control the shearing angle of the scissor component 50 to move synchronously with the trigger.

[0052] The beneficial effects of the intelligent electric shear 100 provided by this embodiment are at least as follows:

[0053] (1) For the intelligent electric shear 100 provided by this embodiment, the trigger pulse generator 10 is adopted as the control signal source of the intelligent electric shear 100, that is, the trigger pulse generator 10 can be manually operated to emit single or continuous pulse signals, so that the scissor component 50 shears, and the scissor component 50 can shear to form any shearing angle and a controllable shearing speed. It has strong controllability and is safer to use, thus intelligently controlling the shearing angle of the scissor component 50 to move synchronously with the trigger, and has a wider application range.

[0054] (2) For the intelligent electric shear 100 provided by this embodiment, the shearing angle and speed of the scissor component 50 are controlled in real-time and synchronously by the trigger pulse generator 10, without delay, improving the reliability of the product and also improving the user experience.

[0055] In one embodiment, please refer to Figure 4 and Figure 5, the trigger pulse generator 10 includes: a fixed piece 11, the fixed piece 11 is connected to a housing 60 included in the intelligent electric shear body; a movable piece 12, the movable piece 12 is rotatably connected to the fixed piece 11; a handle 13, the handle 13 is fixedly connected to the movable piece 12 and extends outside the housing 60; a pulse generating unit, the pulse generating unit is disposed between the fixed piece 11 and the movable piece 12, the pulse generating unit is electrically connected to the circuit board 20, and can generate a pulse signal through the rotation of the movable piece 12 relative to the fixed piece 11 and transmit it to the circuit board 20. The operator applies force to the handle 13 extending outside the housing 60 once or continuously for multiple times, so that the movable piece 12 fixedly connected to the handle 13 can rotate relative to the fixed piece 11, the pulse signal generated by the pulse generating unit reaches the circuit board 20, the circuit board 20 sends a driving signal to the driving assembly, and the driving assembly drives the scissor assembly 50 to shear and can form any shearing angle. When the force applied to the handle 13 is withdrawn, through the action of the driving assembly, the scissor assembly 50 moves in the reverse direction, and can stop at any position corresponding to the number of pulses, or return to the original position, that is, the open position. Its trigger pulse generator 10 has a simple structure and is convenient to operate.

[0056] Optionally, the pulse generating unit includes a pulse generating element printed circuit board 14, a light source, an optical encoder disk, and a photosensitive sensor. The light source and the photosensitive sensor are both electrically connected to the pulse generating element printed circuit board. The pulse generating element printed circuit board is connected to the circuit board 20. The operator applies force to the handle 13 extending outside the housing 60 once or continuously for multiple times, so that the movable piece 12 fixedly connected to the handle 13 can rotate relative to the fixed piece 11. The light emitted by the light source passes through the optical encoder disk, and the photosensitive sensor receives the signal and transmits it to the pulse generating element printed circuit board 14 electrically connected thereto. The pulse generating element printed circuit board 14 transmits the pulse signal to the circuit board 20.

[0057] Optionally, the handle 13 and the movable piece 12 are of an integral structure, and its structure is firm. Optionally, a connecting column 112 is provided on the fixed piece 11, a connecting column hole 61 is provided on the housing 60, and the connecting column 112 is placed in the connecting column hole 61, so that the fixed piece 11 can be stably connected to the housing 60, and when the movable piece 12 rotates relative to the fixed piece 11, it is more stable.

[0058] In one embodiment, please continue to refer to Figure 4 and Figure 5, the trigger pulse generator 10 further includes a torsion spring 15; on one side of the stationary piece 11 close to the movable piece 12, there is a first card slot 111, and on one side of the movable piece 12 close to the stationary piece 11, there is a second card slot 121. The torsion spring 15 is arranged between the stationary piece 11 and the movable piece 12, and a first positioning convex block 151 of the torsion spring 15 is arranged in the first card slot 111, and a second positioning convex block 152 of the torsion spring 15 is arranged in the second card slot 121. The torsion spring 15 can cooperate with the movable piece 12 to rotate forward or backward relative to the stationary piece 11. Due to the arrangement of the torsion spring 15, the first positioning convex block 151 of the torsion spring 15 is connected in cooperation with the first card slot 111 of the stationary piece 11, and the second positioning convex block 152 of the torsion spring 15 is connected in cooperation with the second card slot 121 of the movable piece 12. When an operator applies force to the handle 13, the movable piece 12 rotates relative to the stationary piece 11, and the torsion spring 15 will undergo torsional deformation, that is, elastic deformation, and at the same time, a positive pulse signal is also sent out, and the scissor assembly 50 is closed to any closing angle; when the force applied to the handle 13 is withdrawn, under the driving of the restoring force of the torsion spring 15, the movable piece 12 moves in the opposite direction, that is, a reverse pulse signal is sent out. The pulse signal is transmitted to the circuit board 20, and the circuit board 20 sends a driving signal to the driving assembly. Through the action of the driving assembly, the scissor assembly 50 moves in the opposite direction to any position or returns to its original position, that is, the opening and closing position.

[0059] In one embodiment, please refer to Figure 5 and Figure 6 and also refer to Figure 2 , the driving assembly includes:

[0060] A driving module 30, the circuit board 20 is electrically connected to the driving module 30;

[0061] A driving mechanism 40, the driving mechanism 40 includes:

[0062] A driving motor 41, the driving module 30 is bidirectionally electrically connected to the driving motor 41; a displacement adjustment component 42, one end of the displacement adjustment component 42 is connected to the driving motor 41, and the other end of the displacement adjustment component 42 is connected to the scissor assembly 50. When the driving module 30 sends a driving signal and drives the driving motor 41 to rotate, the driving motor 41 can drive the displacement adjustment component 42 to achieve displacement adjustment, and further achieve the adjustment of the closing of the scissor assembly 50 through the displacement adjustment component 42, and any closing angle can be formed by the action of the trigger pulse generator 10.

[0063] In one embodiment, please continue to refer to Figure 5 and Figure 6, the displacement adjustment assembly 42 includes: a ball screw 421 connected to the drive motor 41, and an arc-shaped spiral groove 4211 is provided on the outer part of the ball screw 421; a screw nut 422 connected to the scissor assembly 50, the screw nut 422 is sleeved on the outer side of the ball screw 421, and the arc-shaped spiral groove 4211 is filled with balls. When the ball screw 421 rotates relative to the screw nut 422, an axial displacement occurs between the ball screw 421 and the rod nut 422. The drive motor 41 rotates to drive the connected ball screw 421 to rotate. Since the screw nut 422 sleeved on the outer part of the ball screw 421 is also connected to the scissor assembly 50, when the ball screw 421 rotates, the balls filled in the arc-shaped spiral groove 4211 will cause an axial displacement between the ball screw 421 and the screw nut 422, so as to realize the adjustment of the shearing of the scissor assembly 50 through the cooperation of the ball screw 421 and the screw nut 422, and any shearing angle can be formed through the action of the trigger pulse generator 10.

[0064] In one embodiment, the drive mechanism 40 further includes at least one connecting rod 43. One end of the connecting rod 43 is connected to the screw nut 422, and the other end of the connecting rod 43 is connected to the scissor assembly 50. The connecting rod 43 is provided to connect the screw nut 422 and the scissor assembly 50, so as to realize that the rotation of the ball screw 421 drives the screw nut 422 to generate an axial displacement toward the side away from the scissor assembly 50, and then drives the connecting rod 43 to generate an axial displacement, so as to realize the adjustment of the shearing of the scissor assembly 50, and any shearing angle can be formed through the action of the trigger pulse generator 10.

[0065] In one embodiment, the number of the connecting rods 43 is two. The two connecting rods 43 are respectively arranged on both sides of the screw nut 422 and connected to the outer side wall of the screw nut 422, and the two connecting rods 43 are centrosymmetric. The above setting can make the screw nut 422 drive the connecting rods 43 located on both sides of the screw nut 422 to generate displacement simultaneously when generating displacement, so that the scissor assembly 50 also generates displacement to realize the shearing of the scissor assembly 50, and any shearing angle can be formed through the action of the trigger pulse generator 10.

[0066] In one embodiment, please continue to refer to Figure 5 and Figure 6, the scissor assembly 50 includes: a movable scissor blade 51, the movable scissor blade 51 is connected to the connecting rod 43; a fixed scissor blade 52, the fixed scissor blade 52 is connected to the movable scissor blade 51, and the movable scissor blade 51 can rotate relative to the fixed scissor blade 52, and the fixed scissor blade 52 is also connected to the housing 60 of the intelligent electric shear body. When the connecting rod 43 generates a displacement, it can drive the movable scissor blade 51 connected to the connecting rod 43 to rotate relative to the fixed scissor blade 52, so as to realize the cooperation of the movable scissor blade 51 and the fixed scissor blade 52 to achieve shearing. At the same time, through the cooperation of the trigger type pulse generator 10, any shearing angle can be formed between the movable scissor blade 51 and the fixed scissor blade 52, with strong controllability and safer use. At the same time, the shearing angle between the movable scissor blade 51 and the fixed scissor blade 52 is under the real-time control of the trigger type pulse generator 10, without delay, improving the reliability of the product.

[0067] Optionally, the fixed scissor blade 52 is connected to the housing 60 by at least one screw 521, which not only has a firm connection structure but also is convenient for disassembly and assembly. Optionally, the fixed scissor blade 52 is connected to the housing 60 by two screws 521, so that the fixed scissor blade 52 is more firmly connected to the housing 60. It should be understood that the number of screws 521 is not limited to the above values and can also be other values, which are not limited here.

[0068] Optionally, a first connection hole 511 is provided on the movable scissor blade 51, second connection holes 431 are provided on both of the two connecting rods 43, and the two connecting rods 43 are respectively located on both sides of the movable scissor blade 51. A first connecting member passes through the first connection hole 511 and the second connection hole 431 and is connected to the first connection hole 511 and the second connection hole 431 in a matching manner, so that the movable scissor blade 51 is stably connected to the connecting rod 43. Optionally, third connection holes 432 are further provided on both of the two connecting rods 43, and second connecting members 4221 protruding outward are provided on both sides of the lead screw nut 422. The second connecting members 4221 pass through the third connection holes 432 and cooperate with the third connection holes 432, so that the connecting rod 43 is stably connected to the lead screw nut 422.

[0069] In one embodiment, a first pin hole 512 is provided on the movable scissor blade 51, a second pin hole 522 is provided on the fixed scissor blade 52, the pin 53 sequentially passes through the second pin hole 522 and the first pin hole 512, and the end of the pin 53 is connected to a lock washer 54 provided on the side of the movable scissor blade 51 away from the fixed scissor blade 52. Through the cooperation of the pin 53 and the lock washer 54, the fixed scissor blade 52 and the movable scissor blade 51 can be connected together, and the pin 53 is used as a fulcrum. When the movable scissor blade 51 is pulled by the connecting rod 43, the movable scissor blade 51 can rotate relative to the fixed scissor blade 52, and the structure is firm, the rotation is smooth and stable.

[0070] In one embodiment, please refer to Figure 3 , the intelligent electric shear 100 further includes a power supply module 70, and the power supply module 70 is electrically connected to the circuit board 20, the trigger pulse generator 10, and the drive assembly. The power supply module 70 is configured to supply electrical energy to the circuit board 20, the trigger pulse generator 10, and the drive assembly.

[0071] In summary, this embodiment provides an intelligent electric shear 100, including: an intelligent electric shear body; a trigger pulse generator 10 disposed on the intelligent electric shear body, and the trigger pulse generator 10 is configured to emit single or multiple continuous pulse signals; a circuit board 20, and the trigger pulse generator 10 is electrically connected to the circuit board 20; a drive assembly, and the circuit board 20 is electrically connected to the drive assembly; a scissors assembly 50, and the drive assembly is connected to the scissors assembly 50 to drive the scissors assembly 50 to shear, and can drive the scissors assembly 50 to form any shearing angle. The intelligent electric shear 100 provided in this embodiment uses the trigger pulse generator 10 as the control signal source of the intelligent electric shear 100, that is, a person can manually operate the trigger pulse generator 10 to emit single or continuous pulse signals, so that the scissors assembly 50 shears, and the scissors assembly 50 can be sheared to form any shearing angle and a controllable shearing speed, with strong controllability and safer use, thereby intelligently controlling the shearing angle of the scissors assembly 50 to move synchronously with the trigger, and having a wider application range. For the intelligent electric shear 100 provided in this embodiment, the shearing angle and speed of the scissors assembly 50 are controlled in real time and synchronously by the trigger pulse generator 10, without delay, improving the reliability of the product and also improving the user experience.

[0072] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent electric shear, characterized in that, it includes: An intelligent electric shear body; A trigger type pulse generator, which is arranged on the intelligent electric shear body and is used to emit single or multiple continuous pulse signals; A circuit board, and the trigger type pulse generator is electrically connected to the circuit board; A drive assembly, and the circuit board is electrically connected to the drive assembly; A scissor assembly, and the drive assembly is connected to the scissor assembly to drive the scissor assembly to shear and can drive the scissor assembly to form any shearing angle; Wherein, the trigger type pulse generator emits single or multiple continuous pulse signals and transmits them to the circuit board. The circuit board issues a drive signal to the drive assembly. The drive assembly drives the scissor assembly to shear and can form any shearing angle corresponding to the number of pulses. When the trigger type pulse generator emits a reverse pulse signal, the scissor assembly moves in the reverse direction through the action of the drive assembly to intelligently control the shearing angle of the scissor assembly to move synchronously with the trigger; The trigger type pulse generator includes: A fixed piece, and the fixed piece is connected to the housing included in the intelligent electric shear body; A moving piece, and the moving piece is rotatably connected to the fixed piece; A handle, and the handle is fixedly connected to the moving piece and extends outside the housing; A pulse generating unit, which is placed between the fixed piece and the moving piece. The pulse generating unit is electrically connected to the circuit board and can generate a pulse signal through the rotation of the moving piece relative to the fixed piece and transmit it to the circuit board; A torsion spring, a first card slot is provided on one side of the fixed piece close to the moving piece, a second card slot is provided on one side of the moving piece close to the fixed piece, the torsion spring is arranged between the fixed piece and the moving piece, and the first positioning convex block of the torsion spring is arranged in the first card slot, and the second positioning convex block of the torsion spring is arranged in the second card slot; Wherein, the torsion spring can cooperate with the moving piece to rotate forward or backward relative to the fixed piece. When an operator applies force to the handle, the moving piece rotates relative to the fixed piece, the torsion spring undergoes torsional deformation, and at the same time, a positive pulse signal is also emitted, and the scissor assembly shears to any shearing angle; when the force applied to the handle is withdrawn, under the driving of the restoring force of the torsion spring, the moving piece moves in the reverse direction, and at the same time, a reverse pulse signal is emitted. The pulse signal is transmitted to the circuit board, and the circuit board issues a drive signal to the drive assembly. Through the action of the drive assembly, the scissor assembly moves in the reverse direction; Wherein, the pulse generating unit includes a pulse generating element printed board, a light source, an optical code disk and a photosensitive sensor. The light source and the photosensitive sensor are both electrically connected to the pulse generating element printed board, and the pulse generating element printed board is connected to the circuit board; The operator applies force to the handle once or continuously multiple times to enable the moving piece to rotate relative to the fixed piece. The light emitted by the light source passes through the optical code disk, and the photosensitive sensor receives the signal and transmits it to the pulse generating element printed board electrically connected to it. The pulse generating element printed board transmits the pulse signal to the circuit board.

2. The intelligent electric shear according to claim 1, characterized in that, The drive assembly includes: A drive module, and the circuit board is electrically connected to the drive module; Drive mechanism, the drive mechanism includes: Drive motor, the drive module is bi-directionally electrically connected to the drive motor; Displacement adjustment component, one end of the displacement adjustment component is connected to the drive motor, and the other end of the displacement adjustment component is connected to the scissor component.

3. The intelligent electric shear according to claim 2, characterized in that, The displacement adjustment component includes: Ball screw, the ball screw is connected to the drive motor, and an arc-shaped spiral groove is provided on the outer side of the ball screw; Screw nut, the screw nut is connected to the scissor component, the screw nut is sleeved on the outer side of the ball screw, and the arc-shaped spiral groove is filled with balls. When the ball screw rotates relative to the screw nut, an axial displacement occurs between the ball screw and the rod nut.

4. The intelligent electric shear according to claim 3, characterized in that, The drive mechanism further includes at least one connecting rod, one end of the connecting rod is connected to the screw nut, and the other end of the connecting rod is connected to the scissor component.

5. The intelligent electric shear according to claim 4, characterized in that, The number of the connecting rods is two, the two connecting rods are respectively arranged on both sides of the screw nut and connected to the outer side wall of the screw nut, and the two connecting rods are centrosymmetric.

6. The intelligent electric shear according to claim 4, characterized in that, The scissor component includes: Moving scissor blade, the moving scissor blade is connected to the connecting rod; Fixed scissor blade, the fixed scissor blade is connected to the moving scissor blade, and the moving scissor blade can rotate relative to the fixed scissor blade, and the fixed scissor blade is also connected to the housing of the intelligent electric shear body.

7. The intelligent electric shear according to claim 6, characterized in that, A first pin hole is provided on the moving scissor blade, a second pin hole is provided on the fixed scissor blade, the pin sequentially passes through the second pin hole and the first pin hole, and the end of the pin is connected to a lock washer provided on the side of the moving scissor blade away from the fixed scissor blade.

8. The intelligent electric shear according to any one of claims 1 to 7, characterized in that, The intelligent electric shear further includes a power supply module, and the power supply module is electrically connected to the circuit board, the trigger pulse generator and the drive component.

Citation Information

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