Locking mechanism for installing faucet above countertop

A locking mechanism for installing a faucet above a countertop, comprising a water outlet assembly, a bottom plate assembly engaged with and mounted to the water outlet assembly and at least one locking block slidably and operably arranged on the bottom plate assembly;

• wherein
• the bottom plate assembly comprises a pinch plate, and the locking block is slidably and operably arranged on the pinch plate;
• the pinch plate is provided with a positioning hole with a diameter smaller than a length of the locking block, the positioning hole corresponds to an installation hole on the countertop, and the locking block, when inclined with respect to the pinch plate, is configured to pass through the positioning hole;
• a fixing base corresponding to the locking block is set to abut against and contact an upper edge surface of the positioning hole, an alignment pin is inserted into a through hole of the fixing base, a bolt is inserted into an insertion hole of the fixing base, and the locking block is provided with a locking hole for inserting the alignment pin and a screw hole in a threaded connection with the bolt;
• the installation hole with a diameter smaller than the length of the locking block is provided on the countertop;
• the locking block, when inclined with respect to the countertop, is configured to pass through the installation hole;
• when the locking block inclined with respect to the pinch plate passes through the positioning hole and the installation hole in sequence and is positioned in a horizontal state, the bolt is screwed to control the locking block to move upward and contact a bottom surface of the countertop, so that the countertop is clamped and locked between the bottom plate assembly and the locking block.