Multifunctional labor-saving screwdriver

Abstract

The invention discloses a multifunctional labor-saving screwdriver which comprises a gear set structure, a handle, a fixed inner shell and an outer shell. The gear set structure comprises a gear fixedto one end of the handle, a transmission dual gear engaged to the gear, a dual gear, a gear shaft of which is fixed in a chute and only can translate and rotate along the chute, a cylindrical gear with a leading-out shaft and a transmission gear engaged to the cylindrical gear, wherein a screwdriver mounting port is formed in the leading-out shaft of the cylindrical gear. The handle is pressed todrive the gear to rotate to further transfer rotation to the transmission dual gear and the dual gear, and the gear shaft of the dual gear translates to the transmission gear along the chute to be engaged to the transmission gear to further drive the cylindrical gear to rotate so as to achieve a purpose of fastening a screw, so that a mounting face of a screwdriver head is only changed from fastening to loosening. The multifunctional labor-saving screwdriver disclosed by the invention is primarily used for small size maintenance, industrial sites and household use, and has the characteristicsof being wide in application, low in energy consumption and low in cost.

Description

technical field [0001] The invention belongs to the field of mechanical device design, in particular to a labor-saving device utilizing a gear set and a lever, in particular to a multifunctional labor-saving screwdriver. Background technique [0002] After the screw was produced, the screwdriver came into being, and the screwdriver can often be seen in the daily life of the public. Screwdrivers have different specifications in different fields. There are ordinary slotted or cross screwdrivers used in ordinary occasions, but the rotary motion is time-consuming and laborious; there are also electric screwdrivers used in occasions with high workload and intensity, and there are also A screwdriver with high precision (usually smaller in size), but consumes power, and some occasions do not need an electric screwdriver at all. The press-type energy-saving multifunctional labor-saving screwdriver uses a mechanical structure to change the traditional manual rotation or power consum...

AI Technical Summary

Problems solved by technology

[0003] At present, there are screwdrivers that can save man-hours and reduce production costs. For example, the Chinese patent application number 201610219602.2 discloses "a working method of an automatic screwdriver that can save man-hours and reduce production costs". The automatic screwdriver is still a traditional manual rotation. way, just save the step of putting the screw back into the mounting hole, without changing the time-consuming and labor-intensive nature of the screwdriver

Another example is the multifunctional wheeled gun-type electric screwdriver disclosed in Chinese Patent Application No. 201220153264.7. The electric screwdriver does greatly improve work efficiency, but it also brings energy consumption, and is provided with multiple gun heads, motors, gear sets, etc. Multiple structures, high price and cost, electric screwdrivers are not needed in many occasions, but they are often chosen for convenience

Both of the above two patents fail to combine labor saving and energy saving, each of which is deficient in one aspect

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