CN112314214A

CN112314214A - Wireless control scissors

Info

Publication number: CN112314214A
Application number: CN202011279160.6A
Authority: CN
Inventors: 马先鹏
Original assignee: Dongguan Jiahang Industrial Co ltd
Current assignee: Dongguan Jiahang Industrial Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-02-05

Abstract

The invention provides a pair of wireless control scissors, which comprise a handle end, a telescopic rod connected with the handle end, a chuck component arranged at the tail end of the telescopic rod, and a scissor end arranged on the chuck component; the handle end comprises a handle shell, a board machine part arranged on the handle shell, a battery component arranged on one side of the handle shell and a transmitting module arranged in the handle shell; the trigger part is provided with a trigger assembly, and a magnet is arranged on the trigger assembly; the transmitting module is provided with a Hall element, when the trigger is pulled, the Hall element is used for sensing the action of the magnet on the trigger component and converting the sensed action of the magnet into a Hall signal, the transmitting module sends the Hall signal to a receiving end arranged in the scissor end, and the receiving end makes a judgment and executes a corresponding action according to the received Hall signal. The inside of the telescopic rod is provided with no wiring, the handle end is provided with the transmitting module, and the scissors at the tail end of the telescopic rod are internally provided with the wireless receiving control module.

Description

Wireless control scissors

Technical Field

The invention relates to a pair of wireless control scissors, in particular to a control technology for realizing pruning of high-position branches or long-distance branches by using a scissors lengthening rod by a user.

Background

The wire is walked to current original extension bar inside, will place the signal and the battery power transmission of handle end to the terminal scissors of extension bar, judges this wired signal by the scissors and makes corresponding action, lays the extension bar like this and is restricted in the length of walking the line and using, and the extension bar is inside to be walked the line when long-term the use, can the phenomenon of signal contact failure appear.

Disclosure of Invention

In view of the above, the main object of the present invention is to provide a pair of wireless control scissors.

The technical scheme adopted by the invention is as follows:

a wireless control scissors comprises

A handle end, a telescopic rod connected with the handle end,

a chuck component arranged at the tail end of the telescopic rod,

a scissor end arranged on the chuck component;

the handle end comprises a handle shell, a board machine part arranged on the handle shell, a battery component arranged on one side of the handle shell and a transmitting module arranged in the handle shell;

the trigger part is provided with a trigger assembly, and a magnet is arranged on the trigger assembly;

the transmitting module is provided with a Hall element, when the trigger is pulled, the Hall element is used for sensing the action of the magnet on the trigger component and converting the sensed action of the magnet into a Hall signal, the transmitting module sends the Hall signal to a receiving end arranged in the scissor end, and the receiving end makes a judgment and executes a corresponding action according to the received Hall signal.

Furthermore, a connector is arranged on the battery component, the connector is arranged in the handle shell and is positioned at the upper part of the battery component, the connector is connected with a connecting wire, the connecting wire is connected with the transmitting module,

the connector is connected with the indicator light.

Further, a foot pad is arranged on the right side of the handle shell.

Further, the chuck component comprises an inner chuck component which is used for being fixed with the telescopic rod;

and the outer chuck component is fixed on the inner chuck component and is used for fixing the scissors end.

Further, the inner chuck component comprises an upper inner chuck and a lower inner chuck,

the upper inner chuck and the lower inner chuck wrap the telescopic rod and then fix the telescopic rod.

Further, the outer chuck assembly comprises a left outer chuck and a right outer chuck,

the left outer chuck and the right outer chuck are respectively fixed at the left side and the right side of the inner chuck component,

the upper parts of the left outer chuck and the right outer chuck form a fixing groove after being fixed, and the fixing groove is used for being fixed with the scissors.

Further, the receiving end comprises a wireless receiving control module, the wireless receiving control module comprises a power supply circuit, a scissors single chip circuit, a wireless signal receiving circuit, a temperature detection circuit, a current detection circuit, a motor zero-crossing detection circuit, a motor high-speed zero-crossing detection circuit, a buzzer driving circuit and a peak value overcurrent value circuit, the power circuit is respectively connected with the scissors single chip circuit, the wireless signal receiving circuit, the temperature detection circuit, the current detection circuit, the motor zero-crossing detection circuit, the motor high-speed zero-crossing detection circuit, the buzzer driving circuit and the peak value overcurrent value circuit, the scissors singlechip circuit is respectively connected with the wireless signal receiving circuit, the temperature detection circuit, the current detection circuit, the motor zero-crossing detection circuit, the motor high-speed zero-crossing detection circuit, the buzzer driving circuit and the peak overcurrent value circuit.

Further, the receiving wireless signal circuit is connected with the scissors through a J1 terminal, and the receiving wireless signal circuit is used for receiving the Hall signal of the transmitting module and keeps consistent with the Hall signal detected by the transmitting module through a pin S2.

Further, the scissors singlechip circuit is used for detecting the level of a Pin24 in real time, and when the level of the Pin24 is detected to be changed into low level, the wireless receiving control module receives a Hall signal of the transmitting module arranged at the handle end;

at the moment, a Hall element on the transmitting module at the handle end induces the action of a magnet arranged on a trigger, and the scissors do a closing action;

when the user releases the trigger on the handle, the transmitting module at the handle end sends out a signal, the receiving end at the scissors end receives the signal, and the scissors singlechip circuit detects that the Pin Pin24 turns to high level and then sends out an opening signal.

According to the invention, no wiring is arranged in the telescopic rod, the transmitting module is arranged at the handle end, the wireless receiving control module is arranged in the scissors at the tail end of the telescopic rod, and the wireless receiving control module and the scissors realize level reading;

the transmitting module of the handle end and the wireless receiving control module (or the wireless receiving control module arranged on the saw or the wireless receiving control module in other tools) arranged at the scissor end only have one transmitting module corresponding to the wireless receiving control module at any time, namely only one receiving module responds to the action at any time when the trigger of the handle end is pulled down.

The scissors end is fixed on a chuck component of the telescopic rod, a scissors singlechip used on the scissors end detects the level of a Pin (Pin 24-P0.7) in real time, the conventional level is high level, when the Pin detects that the level is converted into low level, the wireless receiving control module arranged on the scissors end receives an effective signal of a transmitting module arranged on the handle end, namely the Hall on the transmitting module of the handle end senses a magnet on a trigger, namely the user pulls the trigger on the handle, and at the moment, the scissors make a closing action; when the user loosens the trigger on the handle, the transmitting module on the handle sends out a signal, the wireless receiving control module at the scissor end receives the signal, and the scissor singlechip used at the scissor end detects that the pin is converted into a high level, so that an opening signal is made.

Drawings

FIG. 1 is a structural block diagram of the present invention;

FIG. 2 is a schematic view of the exploded structure of the handle end of the present invention;

FIG. 3 is a schematic diagram of an exploded construction of the cartridge assembly of the present invention;

FIG. 4 is a circuit diagram of a power supply circuit of the present invention;

FIG. 5 is a circuit diagram of the scissor singlechip circuit of the present invention;

FIG. 6 is a circuit diagram of a circuit for receiving wireless signals in the present invention;

FIG. 7 is a circuit diagram of a temperature detection circuit in the present invention;

FIG. 8 is a circuit diagram of a current sensing circuit in the present invention;

FIG. 9 is a circuit diagram of the motor zero crossing detection circuit of the present invention;

FIG. 10 is a circuit diagram of the motor high speed zero crossing detection circuit of the present invention;

fig. 11 is a circuit diagram of a buzzer driving circuit in the present invention;

FIG. 12 is a circuit diagram of a battery voltage detection circuit in the present invention;

fig. 13 is a circuit diagram of a peak overcurrent value circuit in the invention.

Detailed Description

The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions of the present invention are provided to explain the present invention without limiting the invention thereto.

Referring to fig. 1 to 3, the invention discloses a pair of wireless control scissors, comprising

A handle end 100, a telescopic rod 200 connected with the handle end 100,

a jaw assembly 300 provided at the end of the telescopic bar 200,

a scissor end 400 disposed on the cartridge assembly 300;

the handle end 100 comprises a handle shell 101, a board machine part 109 arranged on the handle shell, a battery component 102 arranged on one side of the handle shell, and a transmitting module 106 arranged inside the handle shell;

the trigger part is provided with a trigger assembly 107, and the trigger assembly comprises a trigger and a magnet arranged on the trigger;

the transmitting module 106 is provided with a Hall element (or a reed switch), when the trigger is pulled, the Hall element is used for sensing the action of the magnet on the trigger assembly and converting the sensed action of the magnet into a Hall signal, the transmitting module sends the Hall signal to a receiving end arranged in the scissor end, and the receiving end makes a judgment according to the received Hall signal and executes a corresponding action.

The battery component is provided with a connector 104, the connector 104 is arranged inside the handle shell and is positioned at the upper part of the battery component, the connector is connected with a connecting wire, the connecting wire is connected with the transmitting module,

the connector is connected to an indicator light 108.

The right side of the handle housing is provided with a foot pad 103.

The jaw assembly 300 includes an inner jaw assembly for fixing with the telescopic rod 200;

an outer jaw assembly secured to the inner jaw assembly for securing with the scissor end 400.

The inner cartridge assembly includes an upper inner cartridge 302 and a lower inner cartridge 304,

the telescopic rod 300 is wrapped and fixed by the upper inner chuck and the lower inner chuck.

The outer jaw assembly comprises a left outer jaw 301 and a right outer jaw 303,

The receiving wireless signal circuit is connected with the scissors through a J1 terminal, and the receiving wireless signal circuit is used for receiving a Hall signal of the transmitting module and keeps consistent with the Hall signal detected by the transmitting module through a pin S2.

The scissors singlechip circuit is used for detecting the level of a Pin24 in real time, and when the level of the Pin24 is detected to be changed into low level, the wireless receiving control module receives a Hall signal of a transmitting module arranged at the handle end;

Referring to fig. 4, the scissor end further comprises a power module arranged inside the scissor end, the power module adopts a buck switch voltage stabilization chip XL1509-12E1, the power management chip is a single-chip asynchronous buck power supply IC-XL1509-12E1, and the power management chip integrates a 100m omega current-mode MOSFET and can provide 2A continuous load current with wide voltage input between 8V and 30V. The current mode control provides fast transient response and the cycle-by-cycle electric soft start time is adjustable, so that the on and off modes of surge current can be prevented, the power supply current is reduced to be below 1 muA, stable output of +12V is realized through R53 and R55 in the application, and stable 5V output is realized through a three-terminal voltage regulator 78M05 and is supplied to a scissor singlechip used at the scissor end.

Referring to fig. 5, the scissors single chip microcomputer is an XMC1301-032 single chip microcomputer, and the used resources include an input/output function of an IO port of a chip, an ADC function, and a PWM function of TIM, and the following functions are respectively realized:

TABLE 1 Scissors Single chip computer Pin function definition

The input and output functions of the IO port of the chip are respectively realized as follows:

TABLE 2-1 SCM PIN CONFIGURATION

The power is started, the single chip microcomputer is powered on, system resources of the single chip microcomputer are configured, and functions of configuring required function detection pins comprise functions of TIMER1, TIMER2, adc, input and output of an IO port and the like.

The system main function real-time execution function, the 2MS execution function, the 5 MS execution function, and the 20MS execution function are specifically as follows:

referring to fig. 6, the wireless signal receiving circuit is connected to the scissor end through a J1 terminal, and includes a power supply 5V, a system ground wire, a signal pin S1 and a pin S2, the wireless signal receiving circuit is used for receiving a hall signal of the transmitting module, the pin S2 is kept consistent with the hall signal detected by the transmitting module, when the receiving circuit is paired, the transmitting end is pressed down to power on the trigger, and the indicator light is normally on; 15S enters a pairing state, the indicator lights flash in the pairing state, when the pin S1 enters the pairing state at a low level, the pin S2 is pulled down at the same time, the pin S2 is raised at a level after the pairing is completed, and the receiving terminal does not sleep.

Referring to fig. 7, the part of the circuit detects the blade temperature at the scissor end by using an NTC temperature sensor, which is a thermistor and a probe, the resistance value of which rapidly decreases along with the temperature rise, and the NTC is placed inside the heating plate to realize the synchronization with the actual temperature of the heating plate; NTC temperature sensor places on the MOS pipe next door, and NTC temperature sensor is through dividing voltage with resistance R38 to realize being connected with the scissors singlechip through one-level filtering RC circuit, the scissors singlechip detects current blade temperature through ADC function mouth, thereby knows current MOS pipe temperature, realizes temperature control.

Referring to fig. 8, the partial circuit uses a sampling resistor of 5mr connected in series with the motor driving circuit, and by reading the voltage on the resistor, the current can be calculated according to the even ohm law, so that the shearing load condition of the scissors can be sensed.

Referring to fig. 9, the resistors are connected in parallel on the three-phase brushless direct current motor, the voltage value of the current phase can be calculated through voltage division sampling, the 3-phase voltage value at any moment can be acquired by the single-shear blade machine through the ADC function, and the zero crossing point of the motor can be known by comparing different voltage values, so that the stable phase change of the motor is realized, and the continuous and stable operation of the motor is realized.

Referring to fig. 10, when the motor speed is too fast, only by sampling the current value, there may be a moment at which the timing sequence cannot correspond, so that a resistor is connected in parallel to the three-phase brushless dc motor, the current position value of the scissors motor can be obtained by voltage division sampling and a comparator (LM339), and the scissors single chip microcomputer can realize continuous stable operation of the motor under the high-speed condition by detecting 3 pin values corresponding to the voltage division sampling according to the motor rotation timing sequence.

Referring to fig. 11, according to the scissors single chip microcomputer in fig. 10, the current position value of the scissors motor can be obtained through partial pressure sampling and a comparator (LM339) by detecting 3 pin values corresponding to the partial pressure sampling, and the alarm is given when the current position value exceeds a threshold value.

Referring to fig. 12, the battery voltage is divided by 2 detection resistors R1 and R3 connected in parallel at the battery input end, and then divided by R1 and R3, and then filtered by a first-stage RC of R2 and C2 and then connected to the pin of the single chip microcomputer, the single chip microcomputer is configured with an ADC function, detects the voltage value of the pin, and calculates the current battery voltage by calculating the voltage division ratio of R1 and R3.

Referring to fig. 13, the voltage is divided by two resistors R7 and R14 and then filtered by C6 and then connected to the pins of the single chip, the single chip configures a comparator function, detects the voltage values of the two input pins, and the internal part can know the comparison result and make corresponding actions.

When the user needs to pair another tool scissors, the tool needing to be paired can be paired by pressing the trigger 30S at the same time, and the pairing can be performed only under the condition of one-to-one.

The technical solutions disclosed in the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained in the present document by using specific embodiments, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.

Claims

1. A wireless control scissors is characterized by comprising

A handle end, a telescopic rod connected with the handle end,

a chuck component arranged at the tail end of the telescopic rod,

a scissor end arranged on the chuck component;

2. The wireless control scissors as in claim 1, wherein the battery assembly is provided with a connector, the connector is arranged inside the handle housing and positioned at the upper part of the battery assembly, the connector is connected with a connecting wire, the connecting wire is connected with the transmitting module,

the connector is connected with the indicator light.

3. The wireless controlled scissors of claim 1, wherein the right side of the handle housing is provided with a foot rest.

4. The wireless control scissors of claim 1 wherein the jaw assembly comprises an inner jaw assembly for securing with a telescoping rod;

5. The wireless control scissors of claim 4 wherein the inner jaw assembly comprises an upper inner jaw and a lower inner jaw,

6. The wirelessly controlled scissors of claim 4, wherein the outer jaw assembly comprises a left outer jaw and a right outer jaw,

7. The wireless control scissors according to claim 1, wherein the receiving end comprises a wireless receiving control module, the wireless receiving control module comprises a power circuit, a scissors single chip circuit, a wireless signal receiving circuit, a temperature detecting circuit, a current detecting circuit, a motor zero-crossing detecting circuit, a motor high-speed zero-crossing detecting circuit, a buzzer driving circuit and a peak value overcurrent value circuit, the power circuit is respectively connected with the scissors single chip circuit, the wireless signal receiving circuit, the temperature detecting circuit, the current detecting circuit, the motor zero-crossing detecting circuit, the motor high-speed zero-crossing detecting circuit, the buzzer driving circuit and the peak value overcurrent value circuit, the scissors single chip circuit is respectively connected with the wireless signal receiving circuit, the temperature detecting circuit, the current detecting circuit, the motor zero-crossing detecting circuit, the motor high-speed zero-crossing detecting circuit, the buzzer driving circuit and the peak value overcurrent value circuit, the buzzer driving circuit is connected with the peak overcurrent value circuit.

8. The wireless controlled scissors of claim 7 wherein the wireless signal receiving circuit is connected to the scissors via a J1 terminal, and the wireless signal receiving circuit is used to receive the hall signal from the transmitting module and maintain the hall signal through the pin S2 consistent with the detection of the hall signal by the transmitting module.

9. The wireless control scissors of claim 7, wherein the scissors singlechip circuit is configured to detect the level of Pin24 in real time, and when the Pin24 level is detected to be changed to a low level, the wireless receiving control module receives a hall signal of the transmitting module disposed at the handle end;

10. The wireless control scissors of claim 7 wherein the wireless reception control module and scissors implement level reading.