US 11,896,986 B2 · Nozzle device applied to high-pressure cleaning machine and handheld high-pressure cleaning machine

Abstract

A nozzle device applied to a high-pressure cleaning machine is provided, including: a nozzle, including a nozzle casing, where a water outlet channel is provided in the nozzle casing, and a front end of the nozzle casing is provided with at least one liquid discharge port connecting with the water outlet channel; and an exhaust valve, connected to the nozzle casing, and including: a valve seat, provided with a valve cavity; and a valve core, movably arranged in the valve cavity; where the valve seat is provided with an air inlet hole and an air outlet hole, the water outlet channel and a main exhaust passage are arranged in parallel in the nozzle casing, and the valve core is movable relative to the valve cavity to a closed position for blocking the main exhaust passage and an open position for opening the main exhaust passage. In the nozzle device applied to a high-pressure cleaning machine and a handheld high-pressure cleaning machine that are provided in this application, the exhaust valve is provided, and the exhaust valve implements an exhaust function at the open position, and implements a water outlet function at the closed position, thereby implementing self-suction and ensuring that a pressure anomaly is quickly eliminated within a short time during use, to meet a use requirement.

Claims20

Dependent claims

A nozzle device applied to a high-pressure cleaning machine, comprising:

a nozzle, comprising a nozzle casing, wherein a water outlet channel is provided in the nozzle casing, and a front end of the nozzle casing is provided with at least one liquid discharge port connecting with the water outlet channel, wherein
the nozzle device further comprises an exhaust valve connected to the nozzle casing, and the exhaust valve comprises:
a valve seat, provided with a valve cavity capable of connecting with the water outlet channel;
and
a valve core, arranged in the valve cavity and movable relative to the valve cavity;
wherein
the valve seat is provided with an air inlet hole and an air outlet hole, the air inlet hole connects with the water outlet channel and the valve cavity, the air outlet hole connects with the valve cavity, and the air inlet hole, the valve cavity, and the air outlet hole together form a main exhaust passage connecting with external air and the water outlet channel;
the nozzle device further comprises an exhaust port capable of discharging gas that enters the main exhaust passage to the outside;
and the valve core is movable relative to the valve cavity to a closed position for blocking the main exhaust passage and an open position for opening the main exhaust passage.

6 more elements

A handheld high-pressure cleaning machine, comprising a handheld portion, a motor, a water pump driven by the motor, and a nozzle device, wherein the motor and the water pump are both arranged in the handheld portion, the nozzle device is joined to the handheld portion, and the nozzle device comprises:

a main body, wherein a water outlet channel is provided in the main body, and a front end of the main body is provided with at least one liquid discharge port connecting with the water outlet channel;
and
an exhaust valve, arranged on a path between a liquid outlet of the water pump and the liquid discharge port of the nozzle, wherein the exhaust valve comprises:
a valve seat, provided with a valve cavity capable of connecting with the water outlet channel;
and
a valve core, movably arranged in the valve cavity;
wherein
the valve seat is provided with an air inlet hole and an air outlet hole, the air inlet hole connects with the water outlet channel and the valve cavity, the air outlet hole connects with the valve cavity, and the air inlet hole, the valve cavity, and the air outlet hole together form a main exhaust passage connecting with external air and the water outlet channel;
and the valve core is movable relative to the valve cavity to a closed position for blocking the main exhaust passage and an open position for opening the main exhaust passage.

6 more elements

Dependencies are inferred from the claim text.

Nozzle device applied to high-pressure cleaning machine and handheld high-pressure cleaning machine

Life of this patent

Nozzle device applied to high-pressure cleaning machine and handheld high-pressure cleaning machine

Life of this patent

Abstract

Claims20