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Electric screw driver capable of detecting correct locking of screw

An electric screwdriver and locking technology, applied in screwdrivers, power tools, wrenches, etc., can solve the problems that the electric screwdriver cannot know the locking screw, the electric motor is useless, and the screw cannot be tightened.

Active Publication Date: 2011-06-08
KILEWS INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. When a screw with a smaller size is wrongly screwed into the screw hole, the thread on the screw cannot engage with the inner thread of the screw hole, or the thread of the screw head of the screw has been ground so that the electric screwdriver slips, the screw will not be tightened, and Keep the electric motor running in vain
[0005] 2. When a screw with a larger size is screwed into the screw hole by mistake, or the screw is locked before it is screwed into the screw hole due to foreign objects in the screw hole, the existing electric screwdriver cannot know that the screw locking program has abnormality and notify users as soon as possible

Method used

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  • Electric screw driver capable of detecting correct locking of screw
  • Electric screw driver capable of detecting correct locking of screw
  • Electric screw driver capable of detecting correct locking of screw

Examples

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Embodiment Construction

[0042] The electric screwdriver that can detect whether the screw is locked correctly in the present invention can be a manual electric screwdriver or an electric electric screwdriver, please refer to Figure 1 to Figure 4 As shown, a preferred embodiment of the present invention is an example of a hand-operated electric screwdriver, which includes a sub-drive module 10, a stop detection unit 20, a control unit 30, a display unit 40, an operation unit 50 and An alarm module 60 .

[0043] Such as image 3 As shown, the above-mentioned screwdriver drive module 10 includes an electric motor 11, a clutch unit 12 and a tool head 13, the clutch unit 12 is connected between the electric motor 11 and the tool head 13, and when the tool head 13 is detected to turn the screw (Not shown in the figure) When tightening, that is, the automatic switching makes the tool head 13 temporarily detached from the drive of the electric motor 11 .

[0044] Such as Figure 4 As shown, the stop dete...

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PUM

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Abstract

The invention discloses an electric screw driver capable of detecting the correct locking a screw, comprising a screw driver driving module, a detection stopping unit, a control unit and an alarm module, wherein the detection stopping unit is electrically connected with the screw driver driving module, the control unit is electrically connected with the screw driver driving module, the detection stopping unit and the alarm module and executes a checking program, and the alarm module gives out an incorrect locking alarm when the locking time of the screw driver driving module from operation to stopping is more than a locking time upper limit, so as to rapidly inform a user that the screw is incorrectly locked.

Description

technical field [0001] The invention relates to an electric screwdriver, in particular to an electric screwdriver capable of detecting whether a screw is locked correctly. Background technique [0002] The so-called electric screwdriver refers to a tool that drives a tool head through the electric motor in the sub-drive module so that the user can easily screw the screw together. In order to avoid the electric motor continuing to rotate after the screw is tightened and causing burnout, the A clutch unit is installed in the screwdriver drive module with an electric screwdriver. Once the screw is tightened, the clutch unit will detect and temporarily disconnect the tool head from the electric motor to protect the tool head and the electric motor. [0003] Yet existing electric screwdriver still has following shortcoming: [0004] 1. When a screw with a smaller size is wrongly screwed into the screw hole, the thread on the screw cannot engage with the inner thread of the screw...

Claims

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Application Information

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IPC IPC(8): B25B21/02B25B23/00
Inventor 王德煌
Owner KILEWS INDAL
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