Hand-cranking driving type hand drill

Abstract

The invention relates to a hand-cranking driving type hand drill. The hand-cranking driving type hand drill consists of a main handle, an auxiliary handle, a crank handle, a rocker, a driving wheel, a driven wheel, a feed wheel, a support frame, a driving shaft, a three-claw clamp, a bit and a screw, wherein the main handle is fixed on the support frame; the auxiliary handle is fixed on a connecting seat of the support frame; the driving wheel is mounted on a connecting shaft of the support frame, and the rocker is mounted between the connecting shaft of the support frame and the driving wheel; the crank handle is mounted at one end of the rocker, and the rocker and the driving wheel are connected through the screw; the driven wheel and the feed wheel are mounted on the support frame, one side of the feed wheel and the driving shaft are connected and rotate simultaneously; the support frame and the driving shaft are in threaded connection; the three-claw clamp is mounted at the other end of the driving shaft; and the bit is arranged in the three-claw clamp. According to the hand-cranking driving type hand drill disclosed by the invention, rotating, drilling and axial feeding can be realized at the same time, so that the drilling efficiency is improved. Human labor can be fully used, holes which are difficult to drill can be drilled by using the hand-cranking driving type hand drill, and the hand-cranking driving type hand drill is simple in structure and can be widely popularized and applied.

Description

technical field [0001] The invention relates to a drilling tool, in particular to a hand driven manual drill. Background technique [0002] Among the current drilling equipment, the electric drill is easy to use, saves time and effort, but its price is relatively high, and it cannot work normally in the suburbs or without power supply. Therefore, the manual drill still has a greater role and market. [0003] Among the current public manual drilling technical solutions, the Chinese patent (authorized announcement number CN2284662Y) and the Chinese patent (authorized announcement number CN201333734Y) both disclose manual drills, both of which convert linear motion into rotary motion of the manual drill bit to achieve Drilling function. Among them, the former relies on the driving handle to drive the slider connected with the driving handle in a straight line, and then drives the drill rod to rotate through the action of the return spring and the return spring to realize drill...

AI Technical Summary

Problems solved by technology

The common defect of the two is: firstly, the drilling ability of the two is limited: the former is driven by the grip strength of the hand, and the grip strength of people is very limited and prone to fatigue; The friction force between them is limited and easy to relax; secondly, when the two are drilling, the rotary motion of the drill rod and the axial feed motion are not synchronized, so it is difficult to improve the drilling efficiency

[0004] Chinese patent (authorized notification number CN204194874U) discloses a method of using metal wire to drive the gear to rotate, and then the gear pair rotates to drive the speed change wheel, the speed change wheel drives the flywheel, and the flywheel drives the drill body to rotate. Although this technical solution can realize the drilling function, There are many transmission parts, the quality of the flywheel is relatively heavy, and it is not easy to carry, and the winding problem of the metal wire driving the gear rotation is not easy to solve, and when drilling, the rotary motion of the drill rod is not synchronized with the axial feed motion, which cannot improve the drilling speed. Pore ​​efficiency

[0005] In order to synchronize the rotation and axial feed of the manual drill and improve drilling efficiency, the current technical solutions cannot meet the requirements

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