Latching mechanism for truck bed cover

A latching mechanism for the truck bed cover, comprising:

• a connecting member, configured to connect to the cover of the truck bed;
• a clamp, configured to abut against the truck wall;
• an operating component, configured for articulated connection to the clamp;
• a pivot shaft, configured for rotatable connection within the operating component's pivot hole, with the connecting member forming a fixed connection to the pivot shaft;
• when the operating component rotates relative to the pivot shaft, it drives the connecting member to move vertically;
• wherein the feature is that the operating component and the pivot shaft are equipped with a locking structure, including:
• a locking tongue, installed in the pivot shaft's slot;
• locking grooves, set on the hole wall of the pivot hole;
• when the operating component rotates relative to the pivot shaft, the locking tongue extends from or retreats into the pivot shaft;
• when the locking tongue extends from the pivot shaft, the top of the locking tongue presses against the locking groove, and the bottom of the locking tongue is located in the slot, causing the locking tongue to act between the operating component and the pivot shaft, thereby obstructing the rotation of the operating component;
• when the locking tongue retreats into the pivot shaft, the top of the locking tongue releases from the locking groove, with the locking tongue as a whole located in the slot, relieving the effect of the locking tongue on the operating component and the pivot shaft, thus removing the obstruction to the rotation of the operating component.