hacksaw

Abstract

The invention discloses a hacksaw, wherein the distance between a saw bow and a saw blade can be adjusted rapidly. The distances between saw bows and saw blades of most current hacksaws can not be adjusted, and the distances between saw bows and saw blades of a small number of current hacksaws can also be adjusted, but the adjustment is troublesome, the whole current hacksaw needs to be detached, and the adjustment can be only carried out between two specific positions. The hacksaw comprises a saw blade, a saw bow, a saw blade tightening device, a hand shank and an installation head, wherein the saw bow is divided into a front saw bow and a back saw bow, the back saw bow is installed on the hand shank, and can be connected in a rotary mode and positioned. The front saw bow and the back saw bow can be connected in a rotary mode and positioned. The design enables the distance between the saw bow and the saw blade to be adjusted very quickly and conveniently, and the hacksaw can be adjusted without detachment. Moreover, the adjustment can be achieved among a plurality of positions, and the application range of the hacksaw is enlarged.

Description

technical field [0001] The invention relates to a cutting tool, in particular to a hacksaw whose cutting space can be adjusted. Background technique [0002] One of the existing hacksaws is that the cutting space cannot be adjusted, that is, the distance between the saw bow and the saw blade is fixed, such as the Chinese utility model patent ZL03225125.4 "Hacksaw for quick assembly and disassembly of saw blades" And Chinese utility model patent ZL200620088201.2 "combined multifunctional hacksaw". When this kind of hacksaw is installed with a saw blade, the distance between the saw blade and the saw bow is fixed, and the distance between the saw blade and the saw bow will determine how much (or how thick) the hacksaw can cut the workpiece and Cutting work can be carried out in a large working space. [0003] The other is that the cutting space can be adjusted, that is, the distance between the saw bow and the saw blade can be adjusted, such as the Chinese utility model pate...

AI Technical Summary

Problems solved by technology

[0004] The first type of hacksaw can only cut in a larger or smaller space, not both; although the second type of hacksaw can adjust the distance between the bow and the saw blade, there are two problems:

[0005] 1. It can only be adjusted in two pre-set spaces, and it cannot be adjusted between multiple distances according to specific work needs, and the scope of use is limited;

[0006] 2. When adjusting the space, you need to disassemble the saw bow from the handle and installation head, and then reinstall the handle and installation head in another direction. It is troublesome to adjust, and it cannot be adjusted conveniently and quickly. Parts are easy to lose

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