The Basic Working Principle Of Ratchet Tie-down Strap

As a ratchet tie-down strap, its structure includes fasteners, pullers, ratchets, fixed straps and tightening straps, etc., mainly used to wind the ratchets of the tightening straps. The wheel shaft is provided with a coaxially installed coil spring and a coil spring locking mechanism; when the ratchet wheel makes a belt rotation, it can synchronously drive the coil spring to be wound and compressed on the ratchet shaft to form elastic potential energy, and the elastic potential energy of the coil spring is rolled The spring locking mechanism gives the lock; when the coil spring locking mechanism is operated to release the elastic potential energy of the coil spring, it can drive the ratchet shaft to automatically and quickly rewind and tighten the strap until the next use of the strap tensioner; Therefore, by adding a coil spring and a coil spring locking mechanism to the ratchet shaft, the strap tensioner can quickly and reliably bind and tighten the goods without affecting the strap tensioner. Labor-saving and other advantages, thereby improving the efficiency of cargo loading and unloading, making cargo loading and unloading simpler and more orderly.

The strap tensioner includes a fastener, a puller, and a ratchet wheel that is rotatably installed on the inner end of the fastener and the inner end of the puller, and also includes a fixed strap fixedly connected to the fastener, and one end winding It is connected to the ratchet shaft of the ratchet wheel, and the other end forms a tightening strap that binds the free end; the fastener is provided with an elastic pushing member that slides inward, and the trigger member is provided with an elastic pushing member.

A stopper that slides inward; the clip and stopper are both engaged with the ratchet, and the triggering part is continuously reciprocated relative to the fastener and drives the ratchet to form a one-way intermittent rotation, and then roll A tightening action is realized around the tightening strap; the clip and the stopper are separated from the ratchet, and the binding free end of the tightening strap is pulled outwards and drives the ratchet to rotate freely to realize the strap The action is characterized in that: a coaxially installed coil spring and a coil spring locking mechanism are provided on the ratchet shaft; the outer end of the coil spring is set as a fixed end, and the inner end is fixedly installed on the ratchet shaft, and The belt is rotated by the ratchet wheel to be wound and compressed on the ratchet shaft to form elastic potential energy.