Lock for showcase and showcase comprising same

The utility model provides a lock for a showcase and relates to the field of locks. The lock for the showcase comprises a locking device and a door hook. The locking device comprises a box body and a lock cylinder assembly connected with the door hook in a buckled mode. The lock cylinder assembly is fixed to the box body. The lock cylinder assembly comprises a rotary wheel matched with the door hook. The rotary wheel is connected with the box body in a rotating mode. A clamping hook is arranged adjacent to the rotary wheel and connected with the box body in a rotating mode and controls rotation of the rotary wheel so as to clamp or loosen the door hook. A solenoid valve for controlling swing of the clamping hook is arranged adjacent to the clamping hook and connected with the clamping hook. The lock for the showcase further comprises a power supply, a signal receiver and a controller. The controller is electrically connected with the power supply, the signal receiver and the solenoid valve of the locking device. The lock for the showcase is convenient to open and close and good in anti-theft performance. The utility model further provides the showcase comprising the lock. The showcase comprising the lock is easy to operate and convenient to use.