Flexible strap-based bag-closure mechanism for trash can

A flexible strap-based bag-closure mechanism for a trash can, comprising:

• a bag-closure main body;
• wherein the bag-closure main body is provided at an opening of the trash can;
• a middle of the bag-closure main body is provided with a trash inlet;
• the bag-closure main body is internally provided with a cavity;
• the cavity is configured as an annular structure surrounding the trash inlet;
• and an inner side of the cavity is provided with an opening communicated with the trash inlet;
• the flexible strap-based bag-closure mechanism further comprises a heat-sealing assembly, a limiting block, a flexible strap and a winding roller, and the heat-sealing assembly, the limiting block, the flexible strap and the winding roller are provided within the cavity;
• the heat-sealing assembly comprises a first arm and a second arm;
• the first arm comprises a connecting end and a hinged end;
• the connecting end is connected to the flexible strap;
• the hinged end is rotatably connected to the bag-closure main body;
• and the second arm is fixedly provided on the bag-closure main body, and is located on a side of the hinged end;
• the flexible strap is configured to drive the first arm to rotate around the hinged end to clamp a garbage bag with the second arm or to be separated from the second arm;
• and the winding roller is located on a side of the second arm away from the connecting end;
• and
• the flexible strap is drivably connected to the winding roller;
• the winding roller is configured to rotate to elastically wind or unwind the flexible strap;
• and the flexible strap is configured to extend from the winding roller, and pass through the limiting block to extend along the opening at the inner side of the cavity to be connected to the connecting end of the first arm.