What are the characteristics of ratchet wrench?

principle

A ratchet wrench for rotating a bolt or nut placed in a narrow or inaccessible position, and the ratchet wrench is rotatably connected with the end of the operating rod. The ratchet wrench comprises a weight block connected with the operating lever, the weight block can slide along the length direction of the operating lever, and the operating lever in front of the weight block is provided with a front weight bearing part to prevent the collision of the weight block. Alternatively, the operating lever at the rear of the weight block is provided with a rear weight bearing part that blocks the collision of the weight block. Moreover, the operating lever can also have both a front weight bearing part and a rear weight bearing part.

Product features

ir pressure rod top cover device, which is more labor-saving, smooth and fast to open the box cover.

The safety cylinder lock device is stronger and has better anti-theft performance.

Sand paint surface, anti scratch, anti dissolution, strong anti rust ability.

The unique combination structure of box cover and box body is firm and solid.

Specially designed heavy-duty R-angle drawer handle, easy to pull and close.

Double ball slide rail design, with self-locking function.

Plastic coated side handle makes dragging easier.

Ratchet wrench

Structure analysis of simple wrench head for ratchet wrench. The wonderful use of combined curve in wrench design. Generally, when the screw connection structure is tightened, the surface subject to external force adopts the structure of regular hexagon, usually hexagon nut. In this way, when it is rotated by torque, there are always several surfaces in contact with the force application surface of the wrench to maintain the effect of torque, so as to apply rotating torque to the screw pair and achieve the purpose of tightening the threaded connection.