Jun 23, 2026

US12663235 - Anti-freeze water gun structure

An anti-freeze water gun structure has a gun body. The gun body has a water passageway therein, a water inlet at a lower end thereof, and a water chamber between the water passageway and the water inlet. A guide tube is provided in the water chamber. A slidable piston is fitted onto the guide tube. A lower end of the guide tube has a sealing structure for blocking a lower end of the water chamber. A lower half of the water chamber, located below the piston, is surrounded by the piston, an inner wall of the water chamber, an outer wall of the guide tube and the sealing structure to form a closed chamber. An elastic member is provided in the closed chamber for elastically pushing the piston upward. A water channel communicating with the water inlet and the water passageway is formed in the guide tube.

Assignee: ZHONGSHAN QINGYI METAL PRODUCTS ENTERPRISE CO., LTD.
Inventors: Shulong Li, Weizhong Qian, Kun Guang Wu, Tang Chieh Yu
Filing date: 2024-09-18

watergunanti-freezepneumaticnon-firearm

The anti-freeze water gun structure features a gun body with a water passageway, inlet, and chamber, incorporating a guide tube and a slidable piston. An elastic member within a closed chamber pushes the piston upward, facilitating water flow control through a nozzle unit.

Claim 1

1 . An anti-freeze water gun structure, characterized in that the anti-freeze water gun structure comprises a gun body, a switch unit for turning on/off a water flow, and a nozzle unit for adjusting a water spray; the gun body has a water passageway therein and a water inlet at a lower end thereof, the gun body further has a water chamber between a lower end of the water passageway and the water inlet, a guide tube is provided in the water chamber, a piston able to slide up and down is fitted onto the guide tube, a lower end of the guide tube has a sealing structure for blocking a lower end of the water chamber, a lower half of the water chamber, located below the piston, is surrounded by the piston, an inner wall of the water chamber, an outer wall of the guide tube and the sealing structure to form a closed chamber, an elastic member is provided in the closed chamber for elastically pushing the piston upward, and a water channel communicating with the water inlet and the water passageway is formed in the guide tube.

Google Patents

https://patents.google.com/patent/US12663235

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12663235