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Electric hand drill

A hand electric drill and handle technology, used in portable drilling rigs, drilling/drilling equipment, metal processing equipment, etc., can solve problems such as inconvenient operation, change of working gear, spin generation, etc., to enhance convenience and stability. , to avoid the effect of changes

Inactive Publication Date: 2010-06-30
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If at this time, the drill bit on the drill chuck is subjected to a greater reverse torque force from the workpiece, the connection mechanism in the torque cover will not be able to overcome the torque action and will cause a tripping phenomenon, accompanied by spin, resulting in The working gear that has been set is changed
When the operator restarts the machine, he needs to readjust the torque cover to the set working position, which causes inconvenience to the operation

Method used

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] see figure 1 , a hand electric drill, including a housing 1, a drill chuck 2 and a handle 3. A motor 10 is arranged inside the housing 1 , and the motor 10 is controlled by a switch 30 on the handle 3 to be in an on or off state. When the motor 10 is in the on state, that is, the switch 30 is pressed by the operator, the output of the motor 10 is along figure 1 The torque transmitted in direction A is transferred to the drill chuck 2. Various drill bits 20 can be installed on the drill chuck 2 as required, and the drill chuck 2 drives the drill bit 20 to rotate after receiving the torque transmitted by the motor 10 .

[0017] The electric hand drill also includes a torque cover 4 for adjusting the working gear of the drill chuck 2 , and the torque cover 4 is located between the casing 1 and the drill chuck 2 . During work, ...

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Abstract

The invention discloses an electric hand drill, which comprises a shell (1), a drill chuck (2), a handle (3) and a torque cover (4) for regulating the maximum output torque of the drill chuck (2), wherein the shell (1) is internally provided with a motor (10), the handle (3) is provided with a switch (30), the motor (10) is controlled for transferring torque to the drill chuck (2) by switching on or switching off the switch (30), and the shell (1) is also provided with anti-rotation mechanisms (6,7,and 8) which are connected with the switch (30), when the switch (30) is in switching on state, the anti-rotation mechanisms (6,7,and 8) are connected with the torque cover (4) in a matching way; when the switch (30) is in switching off state, the anti-rotation mechanisms (6,7, and 8) are detached from the torque cover (4).

Description

technical field [0001] The invention relates to a power tool, in particular to a hand electric drill. Background technique [0002] During the use of the electric hand drill, the drill chuck can be set to different working gears according to the needs, which is used to select the output of the maximum limited torque. The adjustment is carried out through the torque cover, that is, the operator manually rotates the torque cover to set the working gear of the drill chuck. When the working gear is adjusted in place, the torque cover is fixed by means of the connecting mechanism in the torque cover. [0003] When drilling on some softer materials, because the resistance is smaller, the working gear can be set lower, so the torque output by the motor is also smaller; while for some harder materials, it is necessary to set the working gear to The higher the setting, the larger the torque output by the motor. If at this time, the drill bit on the drill chuck is subjected to a gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B45/02
Inventor 何明明曾小田庞晓丽
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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