What are the functions and principles of ratchet wrenches?

The ratchet wrench is a kind of wrench, and it is a very daily hand tool. Although many young people know the ratchet wrench, they don't know much about its function and principle. Let’s talk about ratchet wrenches for everyone today. I hope you can have a deeper understanding of ratchet wrenches.
Ratchet wrench is a kind of wrench, it is a manual screw tightening tool, single-head, double-head multi-specification ratchet wrench (fixed hole). It is mainly connected by the main plum blossom sleeve and the secondary plum blossom sleeve of different specifications and sizes through the female key and the male key of the hinged key. Both ends of the ratchet wrench have quincunx-shaped through holes of different specifications, which can act on two different specifications of screws, thereby expanding the scope of use, not only saving raw materials but also reducing labor costs.
For working in a narrow position, a ratchet wrench is the best choice. The ratchet wrench swings at a relatively small angle and can tighten or loosen screws or nuts. Turn the handle clockwise to tighten, and a support rod is installed on the square sleeve. When the handle is pulled back in the opposite direction, the strut slides out in the inclined surface of the ratchet teeth, so the screw or nut will not follow the reverse rotation. Turn the ratchet wrench counterclockwise to loosen the screw or nut.
The ratchet wrench applies the principle of the ratchet wheel to it. The ratchet mechanism is a unidirectional intermittent motion mechanism composed of a ratchet wheel and a pawl. It is composed of rocker, ratchet wheel and pawl. When the rocker swings clockwise, the pawl hinged on the rod is inserted into the teeth of the ratchet, so that the ratchet rotates through a certain angle at the same time. When the rocker swings counterclockwise, the pawl slides over the teeth of the ratchet wheel, and the ratchet wheel stands still. In this way, the ratchet gets unidirectional intermittent rotation.
Ratchet wrenches are also widely used. For example, on the railway. The ratchet wrench is an ideal tool for loosening and tightening sleeper nuts. It can meet the torque of railway vertical bolts. The ratchet wrench can be loosened, unloaded and tightened by swinging the wrench, which is convenient and quick, saving time and effort.
Of course, in addition to the ratchet wrench, there are many hand tools, such as a Torx screwdriver, hexagonal wrench, and Torx wrench.