A quick-install cartridge for photographic equipment has a base having a receiving chamber; a clamping plate having inclined clamping walls on two sides and being placed in the receiving chamber to form a physical contact; and a locking part provided on one side of the receiving chamber, the locking part being unlocked after the clamping plate is placed in the receiving chamber to cause the clamping to block elastically compress the clamping plate to prevent disengagement. The unlocking part, which includes a telescoping bolt, a spring connected to the telescoping bolt, and an actuating pusher; the actuating pusher drives the telescoping bolt to disengage the lock with the clamping block, which is restored by an elastic force to unlock the clamping plate. The operation of locking and unlocking is extremely convenient and flexible, with good structural stability, quick disassembly and assembly, easy installation and good user experience.