Dec 16, 2025

US12498196 - Water gun

A water gun is provided. On the water gun, when a liquid pump is turned on, liquid in a liquid storage device is injected into a first water tank through a water inlet hole. The liquid pump is used as a unique power source to synchronously perform two functions: In a first function, the liquid in the first water tank is extracted through the water outlet hole for being pressurized, thus forming a high-pressure jet water flow. In a second function, a dynamic pressure field is built inside the first water tank to force a part of the liquid to flow towards a second water tank through a water replenishment hole. The single-pump double-output design directly replaces a shooting water pump and a mist spray water pump that work independently in a traditional double-pump system, and fundamentally reduces power consumption.

Inventors: Jiansheng She
Filing date: 2025-05-19

The patent describes a water gun that utilizes a single liquid pump to simultaneously create a high-pressure jet of water and maintain a dynamic pressure field for liquid replenishment between two tanks. This innovative design reduces power consumption by replacing the traditional dual-pump system with a more efficient single-pump mechanism.

Claim 1

1 . A water gun, comprising: a gun body; a liquid storage device, arranged on the gun body; and a pumping and atomizing device, comprising a liquid pump, a first water tank, a second water tank, and an atomizing member, wherein the liquid pump is arranged on the gun body; a water inlet hole, a water outlet hole, a water replenishment hole, and a flow-back hole are provided in the first water tank; the water inlet hole is communicated to the liquid storage device; the water outlet hole is communicated to the liquid pump; the water replenishment hole is communicated to the second water tank; a through hole is provided in the second water tank; the through hole is communicated to the atomizing member; the second water tank is communicated to the flow-back hole; when the liquid pump works, liquid inside the liquid storage device enters the first water tank through the water inlet hole; a portion of the liquid inside the first water tank is conveyed into the liquid pump through the water outlet hole to be pressurized and sprayed out of the gun body and another portion of the liquid in the first water tank is conveyed into the second water tank through the water replenishment hole to be further transported to the atomizing member through the through hole; and excess liquid that has not been atomized inside the second water tank flows back to the first water tank through the flow-back hole. a gun body; a liquid storage device, arranged on the gun body; and a pumping and atomizing device, comprising a liquid pump, a first water tank, a second water tank, and an atomizing member, wherein the liquid pump is arranged on the gun body; a water inlet hole, a water outlet hole, a water replenishment hole, and a flow-back hole are provided in the first water tank; the water inlet hole is communicated to the liquid storage device; the water outlet hole is communicated to the liquid pump; the water replenishment hole is communicated to the second water tank; a through hole is provided in the second water tank; the through hole is communicated to the atomizing member; the second water tank is communicated to the flow-back hole; when the liquid pump works, liquid inside the liquid storage device enters the first water tank through the water inlet hole; a portion of the liquid inside the first water tank is conveyed into the liquid pump through the water outlet hole to be pressurized and sprayed out of the gun body and another portion of the liquid in the first water tank is conveyed into the second water tank through the water replenishment hole to be further transported to the atomizing member through the through hole; and excess liquid that has not been atomized inside the second water tank flows back to the first water tank through the flow-back hole.

Google Patents

https://patents.google.com/patent/US12498196

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12498196