Abstract: A connector is characterized by comprising a T-shaped main body, three connecting components and two connecting tubes, wherein the connecting components are arranged on one surface of the main body and located at three endpoints of the T-shaped main body. Each connecting component comprises a concave groove body and a connecting column which is arranged in a cavity of the concave groove body, wherein a gap exists between the connecting column and the inner wall of the concave groove body. The two connecting tubes are arranged between two connecting components at the bottom of the T-shaped main body side by side. Each connecting tube penetrates through the main body. Connecting holes are formed in the other surface of the main body.

Abstract: A pet companion cage is disclosed herein, has three or more rectangular metal fence panels, the rectangular metal fence panels are configured to be connected to each other on sides to form an enclosed area, wherein each rectangular metal fence panel is connected to a neighboring rectangular metal fence panel on both sides through hinges or latches. A supporting beam is provided on the top of each rectangular metal fence panel. All the supporting beams meet above a center of the pet companion cage, being fixed with a plastic member. A tarpaulin is placed over the supporting beams to cover pet cages. At least one of the rectangular metal fence panels has a feeding opening. The feeding opening has a door panel. The feeding opening is positioned on the top half of the rectangular metal fence panel.