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Electric screwdriver with adjustable torsion

An electric screwdriver and torque adjustment technology, applied in screwdrivers, power tools, wrenches, etc., can solve the problems affecting the practicability of electric screwdrivers and the prompt of inability to torque gears, so as to increase practicability, reduce operation difficulty, and improve The effect of using the experience

Pending Publication Date: 2019-09-20
浙江亿钻科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When adjusting the torque of the electric screwdriver, it needs to be adjusted with the help of a knob or an additional application program, and there is no intuitive prompt for the current torque gear, which affects the practicability of the electric screwdriver

Method used

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  • Electric screwdriver with adjustable torsion
  • Electric screwdriver with adjustable torsion
  • Electric screwdriver with adjustable torsion

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]The invention discloses an electric screwdriver with adjustable torque. A torque adjustment circuit is arranged in the electric screwdriver. The torque adjustment circuit includes a torque adjustment button and a micro control unit electrically connected with the torque adjustment button. The peripheral of the micro control unit is also electrically connected to the memory chip that stores the current torque gear value and the protection current corresponding to each torque gear value, as well as the LED array; when the torque adjustment button is pressed, the trigger torque adjustment signal is transmitted to the micro control unit, and the micro The control unit obtains the current torque gear value from the memory chip, adds one to the current torque gear value, and transmits the torque gear value after the one-plus operation to the memory chip to replace the stored current torque gear value , and at the same time adjust the lighting quantity of the LEDs in the LED arr...

Embodiment 2

[0052] The invention discloses an electric screwdriver, which comprises a handle housing, a driving mechanism, an output shaft and a working circuit connected with the driving mechanism. The driving mechanism is installed in the handle housing and drives the output shaft to rotate. The output shaft can slide relative to the drive mechanism and the handle housing along its axial direction, and a pressure block and an elastic member located in front of the drive mechanism are also installed in the handle housing, and the working circuit includes a pressure block mounted on the pressure block The upper contact piece and the lower contact piece installed at the front end of the driving mechanism, the elastic member is sandwiched between the pressure block and the driving mechanism to keep the upper contact piece away from the lower contact piece, the output shaft After being pressed, the pressure block is driven to drive the upper contact piece to move, so that the upper contact pi...

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Abstract

The invention discloses an electric screwdriver with adjustable torsion. A torsion adjusting circuit is arranged in the electric screwdriver, and the electric screwdriver is characterized in that the torsion adjusting circuit comprises a torsion adjusting button and a micro-control unit electrically connected with the torsion adjusting button, the periphery of the micro-control unit is electrically connected with a storage chip and an LED array, and the storage chip stores current torsion gear value and protection current corresponding to each torsion gear value; when the torsion adjusting button is pressed, a torsion adjusting signal is triggered to be transmitted to the micro-control unit, the micro-control unit obtains the current torsion gear value from the storage chip, one-plus operation is carried out on the current torsion gear value, the torsion gear value obtained after the one-plug operation is transmitted to the storage chip, the stored current torsion gear value is replaced, and meanwhile, on the basis of the adjusted torsion gear value, the lightening number of the LED array is adjusted. Through cooperation of the torsion adjusting button and an MCU, torsion circular adjusting of the electric screwdriver in the use process can be achieved, the application occasion of the electric screwdriver can be improved, and practicability of the electric screwdriver can be improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of electric tools, in particular to an electric screwdriver with adjustable torque. [0003] 【Background technique】 [0004] The existing electric screwdriver includes an output shaft and a drive mechanism for driving the output shaft to rotate. The drive mechanism is connected to the working circuit, and the working circuit is provided with a switch button for controlling the on-off of the working circuit. The handle housing, when in use, the user operates the switch button to conduct the working circuit, and when not in use, the user operates the switch button to disconnect the working circuit. When adjusting the torque of the electric screwdriver, it needs to be adjusted with the help of a knob or an additional application program, and there is no visual prompt for the current torque gear, which affects the practicability of the electric screwdriver. [0005] 【Content of invention】 [0006] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B21/00B25B23/147
CPCB25B21/00B25B23/147
Inventor 陈安华谭和明
Owner 浙江亿钻科技有限公司
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