As a Ratchet Tie Down Strap, its structure includes fasteners, cable pullers, ratchets, fixing straps and tightening straps, etc. It is mainly used to tighten the straps.

Coaxially installed spiral spring and spiral spring locking mechanism are installed on the wheel shaft; when the ratchet wheel rotates as a belt, it can synchronously drive the spiral spring to be wound and compressed on the ratchet shaft to form elastic potential energy. The spring locking mechanism is rolled by the elastic potential energy of the spiral spring. Provides a lock; when the spiral spring locking mechanism is operated to release the elastic potential energy of the spiral spring, the ratchet shaft can be driven to automatically quickly rewind and tighten the strap until the strap tensioner is used next time. Therefore, by adding a spiral spring and a spiral spring locking mechanism to the ratchet shaft, the strap can quickly and reliably strap and tighten the goods without affecting the strap tensioner. The advantages of labor-saving, so as to improve the efficiency of loading and unloading goods, making loading and unloading more simple and orderly.

The strap tensioner includes a fastener, a cable puller, and a ratchet rotatably installed on the inner end of the fastener and the inner end of the cable puller. It also includes a fixing strap fixedly connected to the fastener, one end is wound and connected to the ratchet shaft of the ratchet, and the other end The buckle is provided with an inwardly sliding elastic pushing member, and the triggering member is provided with an elastic pushing member.

A plug that slides inward; both the clip and the stopper are engaged with the ratchet, and the triggering member continuously reciprocates relative to the fastener and drives the ratchet to form a one-way intermittent rotation, and then realizes a tightening action around the tightening belt. The clamp and the stopper are separated from the ratchet wheel, and the free end of the tightening belt is pulled outward to drive the ratchet wheel to rotate freely to realize the belt action. The characteristic is that the coaxially installed spiral spring and the spiral spring ratchet shaft are provided with a locking mechanism; The outer end of the coil spring is set as a fixed end, and the inner end is fixedly installed on the ratchet shaft. The belt is rotated by the ratchet, wound, and compressed on the Lashing Buckles to form elastic potential energy.

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