Precise electric screwdriver

An electric screwdriver and screwdriver head technology, applied in the field of screwdrivers, can solve the problems of long overall length of the screwdriver, small torque of the composite mechanism, long empty travel of the output shaft, etc., to improve driving efficiency, reduce friction, and shorten the overall length Effect

Pending Publication Date: 2018-03-13
DOLVIS INTELLIGENT TECH CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, each part in this structure is relatively irregular, and the production cost is relatively high, especially the three-stage output shaft, which also leads to a long overall length of the screwdriver; and there is also a big problem, the torque of the composite mechanism is relatively small; In addition, when the structure is switched to manual mode, the rotation of the output shaft will have a long period of idle travel, and the user experience is not good

Method used

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Embodiment Construction

[0031] In order to make the above objects, features and beneficial effects of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] The invention discloses a precision electric screwdriver, such as Figure 1 to Figure 5 As shown, it includes a screwdriver bit and a housing 1. The housing 1 is a cylindrical structure with a storage space formed by fixing the first housing 101 and the second housing 102 together through a buckle mechanism 103, which is simple Convenient and more reliable. Of course, further ultrasonic welding is also possible.

[0033] The housing space of the housing 1 is provided with a motor 2, a battery 7 and a circuit board 8 with a switch, the housing is provided with a switch button 9 for controlling the switch, and the circuit board 8 is controlled by the switch button. 9. Start and drive the motor 7 to rotate forward or reversel...

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Abstract

The invention provides a precision electric screwdriver, which comprises a screwdriver head and a housing, a motor is arranged inside the housing, the screwdriver head is located in front of the housing, and a There is a composite mechanism for realizing manual and automatic mode switching, the proximal end of the output shaft of the composite mechanism is a step with a diameter larger than its distal end, the outer peripheral surface of the step is formed by a group of curved surfaces, and the group of curved surfaces It is formed by connecting the outer convex surface and the inner concave surface of the interval. In the automatic mode of the precision electric screwdriver of the present invention, the torque is increased; in the manual mode, the output shaft does not generate idle travel of rotation, and the user experience is good.

Description

technical field [0001] The invention relates to a screwdriver, in particular to a screwdriver which is used for tightening and loosening screws and nuts and which integrates manual and automatic functions. Background technique [0002] A screwdriver is a tool used to twist a screw to force it into place. Generally, screwdrivers are divided into ordinary screwdrivers, combined screwdrivers and electric screwdrivers, and electric screwdrivers are generally combined screwdrivers. Electric screwdrivers, as the name suggests, use electric motors instead of manual installation and removal of screws, while conventional small electric screwdrivers generally cannot be used manually when there is no electricity. When using manually, the output shaft of the screwdriver is active and non-locked. [0003] In the prior art, it also relates to a manual screwdriver, which uses a one-way valve to limit the position to realize manual integration. The one-way valve has a large volume and a lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B21/00
CPCB25B21/00
Inventor 不公告发明人
Owner DOLVIS INTELLIGENT TECH CO LTD
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