Patent ID: 11944066
Assignee: PETKIT NETWORK TECHNOLOGY(SHANGHAI) CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC A  B  Y | IPC A  B

Claim 0:
1. A pet cat excrement screening device, comprising:
a support base; a drum rotatably mounted on the support base; and a drum driving device mounted on the support base, wherein
the drum is configured to rotate between a first position and a second position under drive of the drum driving device, wherein a rotation angle of the drum is less than 360 degrees;
a side wall of a drum body of the drum is provided with a pet inlet, and the pet inlet is not covered by the support base during a rolling process of the drum;
a screening mechanism is mounted in the drum, the screening mechanism comprises a screening net and a spiral collection bin, a rear end of the drum is provided with a waste discharge outlet, and the spiral collection bin comprises a helicoid spirally curved towards the waste discharge outlet; and during the rolling process of the drum, the screening net is configured to screen out excrement of a pet cat onto the helicoid and screen out cat litter into a space between the spiral collection bin and a drum wall of the drum, and the helicoid is configured to guide the excrement into the waste discharge outlet with rotation of the drum;
the screening mechanism is secured between a front end surface of the drum and a rear end surface of the drum, the spiral collection bin and the screening net are secured relative to each other in an up and down direction, and the screening net is evenly provided with a plurality of screening holes; and
the helicoid is curved towards a rotation axis of the drum along a direction extending from a lower end of the helicoid to an upper end of the helicoid, and the helicoid is curved towards the drum wall of the drum along a direction extending from a front end of the helicoid to a rear end of the helicoid.