One trigger activation retraction or extension of a photographic equipment

A one-touch operation support stand, comprising:

• an installation platform (100), at least three support legs (200) connected to one end of the installation platform (100), and an operating handle (300) attached to the installation platform (100);
• wherein each support leg (200) comprises:
• a leg head end seat (210) is connected to the mounting platform (100) at one end;
• a leg tube assembly (220) comprises multiple axially extendable leg tubes arranged sequentially from the outermost to the innermost;
• an outermost leg tube is fixedly connected to the leg head end seat (210);
• a leg tube locking assembly, housed within the support leg (200), is configured to locking or unlocking of the multi-section leg tube;
• a drive shaft assembly, mounted on the support leg (200) and rotatable about its own axis, is connected to the leg tube locking assembly for transmission;
• a gear transmission assembly mounted on the leg head end seat (210), with its power output end connected to the transmission shaft assembly for power transmission;
• traction lines (410) connected to the power input end of the gear transmission assembly for driving the leg tube locking assembly to either lock or release through the gear transmission and drive shaft assemblies;
• and
• at least three traction lines (410) extending from the leg head end seat (210) and connect to the operating handle (300) for simultaneously applying traction force to all three lines.