CN115885712A - Electric pruning shears - Google Patents
Electric pruning shears Download PDFInfo
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- CN115885712A CN115885712A CN202110945845.8A CN202110945845A CN115885712A CN 115885712 A CN115885712 A CN 115885712A CN 202110945845 A CN202110945845 A CN 202110945845A CN 115885712 A CN115885712 A CN 115885712A
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- microprocessor
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- motor
- movable blade
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
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Abstract
The invention discloses an electric pruning shear, which comprises a movable blade, a Hall plate, a magnet and a travel switch, wherein the magnet is arranged on the movable blade, the Hall plate is provided with a plurality of Hall, the plurality of Hall are distributed along the motion trail of the magnet, and each Hall corresponds to an opening angle of the movable blade; the front end of the travel switch is connected with the sliding potentiometer, and the resistance value of the sliding potentiometer is driven to change by the change of the position of the travel switch; the device also comprises a key mode selection module, a travel switch signal acquisition module, a blade position detection module, a microprocessor and a motor drive control module. The electric pruning shears have a full stroke mode and a multi-section stroke mode, so that the working cost is saved, and the working efficiency is greatly improved.
Description
Technical Field
The invention belongs to the technical field of electric tools, and particularly relates to an electric pruning shear.
Background
The electric pruning shears are a gardening tool, are small and exquisite in shape and convenient to carry, and are a common tool in gardening pruning. The existing electric pruning shears generally have only one working mode, namely the blade can only be opened to the maximum angle or closed. However, in actual operation, when two branches need to be grafted, the branches need to be cut to a certain depth, the opening angle of the electric pruning shears needs to be accurately controlled, and the existing electric pruning shears cannot meet the requirement.
Disclosure of Invention
The invention aims to solve the technical problem of providing the electric pruning shears which have a full stroke mode and a multi-section stroke mode, so that the working cost is saved, and the working efficiency is greatly improved.
In order to solve the technical problems, the invention adopts the following technical scheme: an electric pruning shear comprises a movable blade, a Hall plate, a magnet and a travel switch, wherein the magnet is arranged on the movable blade, the Hall plate is provided with a plurality of Hall devices, the plurality of Hall devices are distributed along the movement track of the magnet, and each Hall device corresponds to an opening angle of the movable blade; the front end of the travel switch is connected with the sliding potentiometer, and the resistance value of the sliding potentiometer is driven to change by the change of the position of the travel switch; the device also comprises a key mode selection module, a travel switch signal acquisition module, a blade position detection module, a microprocessor and a motor drive control module; the key mode selection module comprises a multi-section travel mode;
under the state of a multi-section travel mode, the travel switch signal acquisition module is used for acquiring the resistance value of the sliding potentiometer and sending the resistance value to the microprocessor;
the Hall sensor is used for sensing a magnet on the movable blade and sending a signal to the blade position detection module;
the blade position detection module is used for obtaining the position information of the movable blade and sending the position information to the microprocessor;
the microprocessor is used for determining the Hall contacted when the movable blade stops according to the numerical value interval where the resistance value of the sliding potentiometer is located; the microprocessor is used for sending a signal to the motor driving control module so that the motor driving control module drives the motor to rotate; and according to the position information of the movable blade sent by the receiving blade position detection module, after the movable blade moves to contact with the corresponding Hall, a signal is sent to the motor drive control module, and the motor drive control module drives the motor to stop rotating.
Optionally, the button mode selection module further comprises a full stroke mode, and in the full stroke mode state, the stroke switch signal acquisition module is used for acquiring position information of the stroke switch and sending the position information to the microprocessor;
the microprocessor is used for receiving position information of the travel switch and sending a signal to the motor driving control module, and the motor driving control module drives the motor to rotate forwards to drive the movable blade to move from the initial position to the maximum opening position;
the Hall sensor is used for sensing a magnet on the movable blade and sending a signal to the blade position detection module;
the blade position detection module is used for detecting that the movable blade reaches the maximum opening position and sending the maximum opening position to the microprocessor;
the microprocessor sends a signal to the motor driving control module, and the motor driving control module drives the motor to rotate reversely to drive the movable blade to move from the maximum opening position to the initial position;
the blade position detection module is used for detecting that the movable blade reaches an initial position and sending the initial position to the microprocessor; the microprocessor sends a signal to the motor driving control module, and the motor driving control module drives the motor to stop rotating.
Optionally, a full stroke mode indicator light and a multi-segment stroke mode indicator light are also included.
Optionally, the device further comprises a plurality of stroke indicator lamps for displaying that the movable blade is positioned at the corresponding stroke.
Optionally, the temperature detection and acquisition module is further included and is used for detecting the temperature inside the electric tool, when the temperature detection and acquisition module detects that the temperature reaches a set threshold value, a signal is sent to the microprocessor, the microprocessor sends a signal to the motor drive control module, and the motor drive control module stops the motor from rotating.
Optionally, the motor driving control system further comprises a current detection and acquisition module for detecting the working current of the motor, when the current detection and acquisition module detects that the working current reaches a set threshold value, a signal is sent to the microprocessor, the microprocessor sends a signal to the motor driving control module, and the motor driving control module stops the motor from rotating.
Optionally, the system further comprises a power module for supplying power to the microprocessor.
Optionally, the power module employs a dc power supply.
Optionally, the power supply module further comprises a voltage detection and acquisition module for detecting the voltage of the power supply module, when the voltage detection and acquisition module detects that the voltage reaches a set threshold value, a signal is sent to the microprocessor, the microprocessor sends a signal to the motor drive control module, and the motor drive control module stops the motor from rotating.
Optionally, the safety device further comprises a return spring, wherein one end of the return spring is connected with the travel switch, and the other end of the return spring is connected with the machine body; when the travel switch is loosened, the return spring drives the travel switch to rebound to the initial position.
The technical scheme adopted by the invention has the following beneficial effects:
the electric pruning shears have a full stroke mode and a multi-section stroke mode, the full stroke mode can efficiently prune at one time, and the multi-section stroke mode can accurately control the depth required by pruning, so that a good pruning effect is achieved; the two working modes are adopted, so that the working cost is saved, and the working efficiency is greatly improved.
The following detailed description of the present invention will be provided in conjunction with the accompanying drawings.
Drawings
The invention is further described with reference to the accompanying drawings and the detailed description below:
FIG. 1 is a schematic view of an electric pruning shear according to the present invention;
FIG. 2 is a circuit diagram of the electric pruning shears according to the present invention;
FIG. 3 is a schematic diagram of a Hall plate structure according to the present invention;
FIG. 4 is a schematic view of a display panel of the electric pruning shears according to the present invention;
FIG. 5 is a circuit diagram of a power module of the present invention;
FIG. 6 is a circuit diagram of a microprocessor according to the present invention;
FIG. 7 is a circuit diagram of a blade position sensing module of the present invention;
FIG. 8 is a circuit diagram of a motor drive control module of the present invention;
FIG. 9 is a circuit diagram of the current detection and collection module of the present invention.
In the figure, 1, a movable blade, 2, a Hall plate, 3, a microprocessor, 4, a power module, 5, a display panel, 7, a sliding potentiometer, 8, a reset spring, 9, a travel switch, 10, a first Hall, 11, a second Hall, 12, a third Hall, 13, a fourth Hall, 14, a fifth Hall, 15, a sixth Hall, 16, a travel indicator light, 17, a power-on key, 18, a full travel mode starting key, 19, a multi-section travel mode starting key, 20, a full travel mode indicator light, 21 and a multi-section travel mode indicator light.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper," "lower," "front," "rear," and the like, which indicate orientation or positional relationship, are based only on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices/elements must have a particular orientation or be constructed and operated in a particular orientation and, therefore, should not be taken as limiting the present invention.
The invention discloses an electric pruning shear, which comprises a movable blade 1, a Hall plate 2, a magnet and a travel switch 9, wherein the magnet is arranged on the movable blade 1, the Hall plate 2 is provided with a plurality of Hall devices, the plurality of Hall devices are distributed along the motion track of the magnet, and each Hall device corresponds to an opening angle of the movable blade.
The electric pruning shears further comprise a sliding potentiometer 7, the front end of the travel switch 9 is connected with the sliding potentiometer 7, and the resistance value of the sliding potentiometer is driven to change by the position change of the travel switch 9.
The electric pruning shears comprise a key mode selection module, a travel switch signal acquisition module, a blade position detection module, a microprocessor and a motor drive control module.
The key mode selection module comprises a multi-section stroke mode and a full stroke mode, for example, in the full stroke mode, the resistance value of the sliding potentiometer falls within the range of 1-10K omega, and the moving blade completes one-time full stroke movement; in the multi-stroke mode, the resistance value of the sliding potentiometer falls within the interval of 1-2K omega, the movable blade has a first stroke, and the magnet is contacted with the second Hall 11 when the movable blade stops; the resistance value of the sliding potentiometer falls within the range of 2-4K omega, the movable blade has a second stroke, and the magnet is contacted with the third Hall element 12 when the movable blade stops; the resistance value of the sliding potentiometer falls within the range of 4-6K omega, the movable blade has a third stroke, and the magnet is contacted with the fourth Hall element 13 when the movable blade stops; the resistance value of the sliding potentiometer falls into the range of 6-8K omega, the movable blade has a fourth stroke, and the magnet is contacted with the fifth Hall 14 when the movable blade stops; the resistance value of the sliding potentiometer falls within the interval of 8-10K omega, the movable blade has the fifth stroke, and the magnet is contacted with the sixth Hall element 15 when the movable blade stops.
Under the multi-section travel mode state, the travel switch signal acquisition module is used for acquiring the resistance value of the sliding potentiometer and sending the resistance value to the microprocessor; the Hall sensor is used for sensing a magnet on the movable blade and sending a signal to the blade position detection module, and the blade position detection module is used for acquiring the position information of the movable blade and sending the position information to the microprocessor; the microprocessor is used for determining the Hall contacted when the movable blade stops according to the numerical value interval where the resistance value of the sliding potentiometer is located; the microprocessor is used for sending a signal to the motor driving control module so that the motor driving control module drives the motor to rotate; and according to the position information of the movable blade sent by the receiving blade position detection module, after the movable blade moves to contact with the corresponding Hall, a signal is sent to the motor drive control module, and the motor drive control module drives the motor to stop rotating.
When a multi-section stroke mode is started, the stroke switch signal acquisition module is used for acquiring the resistance value of the sliding potentiometer and sending the resistance value to the microprocessor, the microprocessor determines the Hall which is contacted when the movable blade stops according to the numerical value range where the resistance value of the sliding potentiometer is located, and sends a signal to the motor driving control module, the motor driving control module drives the motor to rotate, after the movable blade moves to contact with a corresponding Hall, the signal is sent to the blade position detection module, the blade position detection module obtains the position information of the movable blade and sends the position information to the microprocessor, the microprocessor sends a signal to the motor driving control module, and the motor driving control module stops the motor from rotating.
Under the full-stroke mode state, the travel switch signal acquisition module is used for acquiring the position information of the travel switch and sending the position information to the microprocessor; the microprocessor is used for receiving position information of the travel switch and sending a signal to the motor driving control module, and the motor driving control module drives the motor to rotate forwards to drive the movable blade to move from the initial position to the maximum opening position; the Hall sensor is used for sensing a magnet on the movable blade and sending a signal to the blade position detection module, and the blade position detection module is used for detecting that the movable blade reaches the maximum opening position and sending the maximum opening position to the microprocessor; the microprocessor sends a signal to the motor driving control module, and the motor driving control module drives the motor to rotate reversely to drive the movable blade to move from the maximum opening position to the initial position; the blade position detection module is used for detecting that the movable blade reaches an initial position and sending the initial position to the microprocessor; the microprocessor sends a signal to the motor driving control module, and the motor driving control module drives the motor to stop rotating.
When the full-stroke mode is started, the position information of the collected travel switch is sent to the microprocessor by the travel switch signal collection module, the microprocessor receives the position information of the travel switch and sends a signal to the motor drive control module, the motor drive control module drives the motor to rotate forwards to drive the movable blade to move from the initial position to the maximum opening position, the corresponding Hall on the Hall plate senses the magnet on the movable blade and sends the signal to the blade position detection module, the blade position detection module obtains the position information of the movable blade and sends the position information to the microprocessor, the microprocessor sends a signal to the motor drive control module, the motor drive control module drives the motor to rotate reversely to drive the movable blade to move from the maximum opening position to the initial position, the blade position detection module obtains the position information of the movable blade and sends the position information to the microprocessor, the microprocessor sends a signal to the motor drive control module, and the motor drive control module stops the motor from rotating.
The electric pruning shears also comprise a display panel 5, and the display panel 5 is provided with a start key 17, a full stroke mode start key 18, a multi-stroke mode start key 19, a full stroke mode indicator light 20 and a multi-stroke mode indicator light 21.
The electric pruning shears also comprise a plurality of stroke indicator lights 16 for displaying the corresponding stroke of the moving blade.
The electric pruning shears further comprise a temperature detection and acquisition module for detecting the temperature inside the electric tool, when the temperature detection and acquisition module detects that the temperature reaches a set threshold value, a signal is sent to the microprocessor, the microprocessor sends a signal to the motor drive control module, and the motor drive control module stops the motor from rotating.
The electric pruning shears further comprise a current detection and acquisition module used for detecting the working current of the motor, when the current detection and acquisition module detects that the working current reaches a set threshold value, a signal is sent to the microprocessor, the microprocessor sends a signal to the motor driving control module, and the motor driving control module stops the motor from rotating.
The electric pruning shears further comprise a power module 4 for supplying power to the microprocessor 3, and the power module 4 adopts a direct-current power supply.
The electric pruning shears further comprise a voltage detection and acquisition module for detecting the voltage of the power supply module, when the voltage detection and acquisition module detects that the voltage reaches a set threshold value, a signal is sent to the microprocessor, the microprocessor sends a signal to the motor drive control module, and the motor drive control module stops the motor from rotating.
The electric pruning shears further comprise a return spring 8, one end of the return spring 8 is connected with a travel switch 9, and the other end of the return spring 8 is connected with the machine body; when the travel switch 9 is released, the return spring 8 drives the travel switch 9 to rebound to the initial position.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that the invention is not limited thereto, and that the invention includes, but is not limited to, those described in the following detailed description. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the claims.
Claims (10)
1. An electric pruning shear comprises a movable blade, a Hall plate, a magnet and a travel switch, wherein the magnet is arranged on the movable blade, the Hall plate is provided with a plurality of Hall devices, the plurality of Hall devices are distributed along the movement track of the magnet, and each Hall device corresponds to an opening angle of the movable blade; the method is characterized in that: the front end of the travel switch is connected with the sliding potentiometer, and the change of the position of the travel switch drives the resistance value of the sliding potentiometer to change; the device also comprises a key mode selection module, a travel switch signal acquisition module, a blade position detection module, a microprocessor and a motor drive control module; the key mode selection module comprises a multi-section travel mode;
under the state of a multi-section travel mode, the travel switch signal acquisition module is used for acquiring the resistance value of the sliding potentiometer and sending the resistance value to the microprocessor;
the Hall sensor is used for sensing a magnet on the movable blade and sending a signal to the blade position detection module;
the blade position detection module is used for obtaining the position information of the movable blade and sending the position information to the microprocessor;
the microprocessor is used for determining the Hall contacted when the movable blade stops according to the numerical value interval where the resistance value of the sliding potentiometer is located; the microprocessor is used for sending a signal to the motor driving control module so that the motor driving control module drives the motor to rotate; and according to the position information of the movable blade sent by the receiving blade position detection module, after the movable blade moves to contact with the corresponding Hall, a signal is sent to the motor drive control module, and the motor drive control module drives the motor to stop rotating.
2. The electric pruning shears according to claim 1, wherein: the button mode selection module also comprises a full stroke mode, and in the full stroke mode state, the travel switch signal acquisition module is used for acquiring the position information of the travel switch and sending the position information to the microprocessor;
the microprocessor is used for receiving position information of the travel switch and sending a signal to the motor driving control module, and the motor driving control module drives the motor to rotate forwards to drive the movable blade to move from the initial position to the maximum opening position;
the Hall sensor is used for sensing a magnet on the movable blade and sending a signal to the blade position detection module;
the blade position detection module is used for detecting that the movable blade reaches the maximum opening position and sending the maximum opening position to the microprocessor;
the microprocessor sends a signal to the motor driving control module, and the motor driving control module drives the motor to rotate reversely to drive the movable blade to move from the maximum opening position to the initial position;
the blade position detection module is used for detecting that the movable blade reaches an initial position and sending the initial position to the microprocessor; the microprocessor sends a signal to the motor driving control module, and the motor driving control module drives the motor to stop rotating.
3. The electric pruning shears according to claim 2, wherein: the travel control device also comprises a full travel mode indicator lamp and a multi-section travel mode indicator lamp.
4. The electric pruning shears according to claim 3, wherein: the device also comprises a plurality of stroke indicating lamps for displaying the corresponding stroke of the movable blade.
5. The electric pruning shears according to claim 1, wherein: the temperature detection and acquisition module is used for detecting the temperature inside the electric tool, when the temperature detection and acquisition module detects that the temperature reaches a set threshold value, a signal is sent to the microprocessor, the microprocessor sends a signal to the motor drive control module, and the motor drive control module stops the motor from rotating.
6. The electric pruning shears according to claim 1, wherein: the motor driving control system further comprises a current detection and acquisition module for detecting the working current of the motor, when the current detection and acquisition module detects that the working current reaches a set threshold value, a signal is sent to the microprocessor, the microprocessor sends a signal to the motor driving control module, and the motor driving control module stops the motor from rotating.
7. The electric pruning shears according to claim 1, wherein: the power supply module is used for supplying power to the microprocessor.
8. The electric pruning shears according to claim 7, wherein: the power module adopts a direct current power supply.
9. The electric pruning shears according to claim 1, wherein: the voltage detection and acquisition module is used for detecting the voltage of the power supply module, when the voltage detection and acquisition module detects that the voltage reaches a set threshold value, a signal is sent to the microprocessor, the microprocessor sends a signal to the motor drive control module, and the motor drive control module stops the motor from rotating.
10. The electric pruning shears according to claim 1, wherein: the device also comprises a return spring, wherein one end of the return spring is connected with the travel switch, and the other end of the return spring is connected with the machine body; when the travel switch is loosened, the return spring drives the travel switch to rebound to the initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110945845.8A CN115885712A (en) | 2021-08-18 | 2021-08-18 | Electric pruning shears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110945845.8A CN115885712A (en) | 2021-08-18 | 2021-08-18 | Electric pruning shears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115885712A true CN115885712A (en) | 2023-04-04 |
Family
ID=86492026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110945845.8A Pending CN115885712A (en) | 2021-08-18 | 2021-08-18 | Electric pruning shears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115885712A (en) |
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2021
- 2021-08-18 CN CN202110945845.8A patent/CN115885712A/en active Pending
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