Invention Grant
- Patent Title: Kid play tunnel and storage method thereof
-
Application No.: US17394440Application Date: 2021-08-05
-
Publication No.: US11213764B1Publication Date: 2022-01-04
- Inventor: Jie Li
- Applicant: Haiying Liu
- Applicant Address: CN Ankang
- Assignee: Haiying Liu
- Current Assignee: Haiying Liu
- Current Assignee Address: CN Ankang
- Priority: CN202022729565.7 20201123
- Main IPC: E04H15/40
- IPC: E04H15/40 ; A63H33/00 ; A63B9/00

Abstract:
A kid play tunnel comprises an elastic frame, a flexible tube coat, and sliding pipes. The elastic frame is in a spiral shape and comprises head sections and connecting sections connected with the head sections. Each head section of the elastic frame overlaps a respective portion of a corresponding connecting section of the elastic frame to form a frame ring. Each frame ring is closed and comprises a spiral end. The flexible tube coat is arranged on a whole section of the elastic frame. Two ends of the flexible tube coat are annular flexible sleeves. Each annular flexible sleeve is sleeved on a respective frame ring. The sliding pipes limit a circumferential sliding of the head sections with respect to the connecting section of the elastic frame. A diameter of each frame ring is reduced by a corresponding sliding pipe when the kid play tunnel is folded.
Information query