Abstract: This disclosure relates generally to vaporizing devices and components of vaporizing devices, such as mouthpiece locking structures. In various aspects, a locking structure for a mouthpiece includes a circular body extending between a proximal end and a distal end, where an interior surface of the body defines a central lumen. The locking structures may also include a clamp disposed within the central lumen, where the clamp has an angled wall extending inwardly from a rim of the interior surface of the body towards the central lumen. The clamp may additionally include a notch within the angled wall, with the angled wall of the clamp (i) encircling a substantial entirety of a circumference of the body, (ii) defining a clamp lumen, (iii) having a thickness ranging from about 0.5 mm to about 0.7 mm, and (iv) having an angle or bias of from about 100° to about 110°.