Ice crushing device and refrigerator

An ice crushing device, comprising:

• a housing assembly comprises a housing and an ice bucket supported in the housing;
• a driver for driving the ice bucket to rotate, at least a portion of the driver being mounted in the housing;
• an ice crusher disposed in the ice bucket;
• wherein the housing assembly further comprises an ice-discharging plate provided at a bottom of the ice bucket, the ice-discharging plate is provided with an ice-discharging port communicated with the ice bucket, ice cubes prepared by an ice maker are discharged out of the ice-discharging port after being crushed in the ice bucket by the ice crusher, wherein a slope is disposed on the ice-discharging plate at a position adjacent to the ice-discharging port and along a rotary ice discharge direction, and the slope is located on an ice discharge side of the ice-discharging plate and disposed uphill;
• wherein the driver comprises a motor and a cylindrical gear driven by the motor, an outer circumference of the ice bucket is provided with external teeth, and the cylindrical gear meshes with the external teeth to drive the ice bucket to rotate;
• wherein the housing comprises a first portion that houses the ice bucket and a second portion in which the driver is mounted, the first portion is configured to match the outer circumference of the ice bucket, an opening is provided on the first portion, and a meshing portion of the cylindrical gear and the external teeth is located at the opening;
• wherein a groove extending along the circumferential direction of the ice bucket is provided between the ice-discharging plate and the first portion, the groove is communicated with the ice-discharging port, and a lower edge of the ice bucket projects into the groove;
• wherein the housing assembly further comprises a bottom plate, a bottom of the second portion is open, the bottom plate covers the bottom of the second portion to seal the cylindrical gear between the second portion and the bottom plate, the bottom of the ice-discharging plate is provided with a protrusion at a position corresponding to the groove, the bottom plate is provided with a recess, and the protrusion is snap fitted in the recess.