Screw driver

Abstract

The invention discloses a screw driver. The screw driver comprises a handle (1), a driver head (2) which is fixed at one end of the handle (1), an air bag (5) and a pipe (3); the air bag (5) is fixed inside the handle (1); the pipe (3) is fixed inside the driver head (2); an air hole is formed in the tip of the driver head (2); an air outlet of the air bag (5) is connected with one end of the pipe (3); the other end of the pipe (3) extends to the air hole; the surface of the handle (1) is provided with an opening (4) which is used for pressing the air bag (5); the air bag (5) sucks air or exhaust air due to pressing to achieve suction or dust removing at the top of the driver head (2). According to the screw driver, the air hole in the tip of the driver head can suck air or exhaust air to remove dust at the screw section at the tip or suck the screw section at the tip, dust removing and suction effect of the screw driver are increased, the contact area between a hand and the handle is increased, and practicability of the screw driver is improved due to the air bag and the pipe.

Description

technical field [0001] The invention relates to a screwdriver and belongs to the technical field of mechanical tools. Background technique [0002] Generally, a screwdriver is a tool used to turn a screw to force it into place, so it is a tool that is often used in life. The traditional screwdriver includes a handle and a blade part, and the handle and the blade head are fixedly connected. The blade part is generally made of carbon steel or chrome vanadium steel, which is not easy to deform and break during use, making its structure strong, practical and effective. The traction screw has become a powerful tool in people's life. But there are also some problems in such screwdrivers. People often use screwdrivers to turn the screws on various devices, and the screws are often located in deep screw holes. Due to the long-term use of the equipment, the surface of the screws is easy to accumulate dust, while the traditional The screwdriver failed to remove the dust on the surfa...

AI Technical Summary

Problems solved by technology

But there are also some problems in such screwdrivers. People often use screwdrivers to turn the screws on various devices, and the screws are often located in deep screw holes. Due to the long-term use of the equipment, the surface of the screws is easy to accumulate dust, while the traditional The screwdriver failed to remove the dust on the surface of the screw, and after the screw was loosened, the screw could not be easily sucked out from the screw hole of the device, so that the screwdriver only realized the function of turning, but failed to remove dust. And the auxiliary effect of sucking the screw, so the traditional screwdriver fails to achieve dust removal and suction, which reduces the practicality of the screwdriver

In addition, when the traditional screwdriver turns a relatively strong screw, the contact area between the hand and the handle is small, and the force cannot be applied well, so there are further limitations.

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