Hold-pressing type screwdriver

Abstract

The invention relates to a screw mounting and dismounting tool, in particular to a hold-pressing type screwdriver. The screwdriver is characterized in that a turbine mechanism is arranged at the front end of a barrel, a turbine casing of the turbine mechanism is connected with the inner wall of the barrel, a turbine shaft is supported on the turbine casing through bearings, a turbine is arranged on the turbine shaft, the front end of the turbine shaft extends out of a muzzle and is connected with a screwdriver head driving port, an air cylinder is arranged in a handle, an air outlet nozzle of the air cylinder is connected with an air inlet of a reversing valve, a first air outlet of the reversing valve is connected with a forward rotation air inlet on the turbine casing through a guide pipe, a second air outlet of the reversing valve is connected with a reverse rotation air inlet on the turbine casing through the guide pipe, an air inlet nozzle of the air cylinder is connected with a pump air outlet pipe fixed in the handle, a pumping handle of a pump is arranged at the front end, located below the barrel, of the handle, and a reversing valve operation button is arranged on a gun type casing. The screwdriver has the advantages that the screwdriver is convenient to operate and carry, light and flexible to use, small in size, light in weight, high in working efficiency and low in labor intensity, is not required to be charged and the like.

Description

technical field [0001] The invention relates to a tool for assembling and disassembling screws, in particular to a grip-type screwdriver which is convenient to carry, saves time and effort, is flexible and convenient, and has high working efficiency. Background technique [0002] We know that screws are standard parts. Although screws are small, they are inseparable in people's lives and work. All kinds of electrical equipment, machinery, furniture, etc. need screws for fastening. Traditional straight handle screwdrivers have handles, connecting rods And the knife head, using the arm to rotate the handle repeatedly, it is time-consuming and laborious to use, the work efficiency is low, and the labor intensity of the operator is increased. Using a straight handle screwdriver for a long time often makes the operator's arm sore; the electric screwdriver saves time and effort, but Its larger size, heavier weight and limited battery life make it difficult to meet the needs of act...

AI Technical Summary

Problems solved by technology

[0002] We know that screws are standard parts. Although screws are small, they are inseparable in people's life and work. All kinds of electrical equipment, machinery, furniture, etc. need screws for fastening. Traditional straight handle screwdrivers have handles, connecting rods And the knife head, using the arm to rotate the handle repeatedly, it is time-consuming and laborious to use, the work efficiency is low, and the labor intensity of the operator is increased. Using a straight handle screwdriver for a long time often makes the operator's arm

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