US 12,171,188 B2
Litter device for pet
Kexin Tian, Shenzhen (CN); Yangming Qian, Shenzhen (CN); Jin Li, Shenzhen (CN); and Yanhui Chai, Shenzhen (CN)
Assigned to UBTECH ROBOTICS CORP LTD, Shenzhen (CN)
Filed by UBTECH ROBOTICS CORP LTD, Shenzhen (CN)
Filed on Aug. 15, 2022, as Appl. No. 17/887,536.
Claims priority of application No. 202210332567.3 (CN), filed on Mar. 30, 2022.
Prior Publication US 2023/0309501 A1, Oct. 5, 2023
Int. Cl. A01K 1/01 (2006.01)
CPC A01K 1/0114 (2013.01) 10 Claims
OG exemplary drawing
 
1. A litter device for a pet, comprising:
a base configured to be placed on a support surface, the base comprising a recessed portion that comprises a recess surface defining an opening passing through the base;
a drum rotatably connected to the base and partly received in the recessed portion, the drum comprising an outer lateral surface, the recess surface and a portion of the outer lateral surface that faces the recess surface defining a gap therebetween and forming a passage in communication with the opening, and the recess surface configured to guide litter particles entering the passage to pass through the opening to exit the base and fall on the support surface that is external to the base;
a weight measuring mechanism, wherein the weight measuring mechanism is arranged in the base and is configured to measure a weight of the litter device;
wherein the weight measuring mechanism comprises a support member, a weight sensor, and a leg, the support member is arranged in the base. the weight sensor is connected to and arranged under the support member, the weight sensor is connected to and arranged above the leg, and the leg passes through the base to be in contact with the support surface;
wherein the leg defines a receiving space to receive the weight sensor and comprises two first hooks that engage an upper side of the weight sensor to prevent the leg from moving away from the support member;
wherein the support member comprises a second hook that engages and is in constant contact with a lower side of the weight sensor to prevent the weight sensor from moving away from the support member;
wherein the weight sensor further comprises a protruding member protruding from the lower side, the leg comprises a contact member, the protruding member is in constant contact with the contact member.