Air gun with onboard electric pump
The present disclosure provides an air gun, including: an air tube assembly; an onboard electric pump assembly mounted within the air gun and connected to the air tube assembly, where the onboard electric pump assembly is configured to charge high-pressure air into the air tube assembly; a valve assembly configured to control air flow and pressure within the air tube assembly; a firing mechanism assembly operable by a user of the air gun; and an air release valve assembly located between the air tube assembly and the firing mechanism assembly. When the user operates the firing mechanism assembly, the air release valve assembly is automatically triggered by the firing mechanism assembly to release the high-pressure air in the air tube assembly to project pellets.
1 . An air gun, comprising:
an air tube assembly;
an onboard electric pump assembly mounted within the air gun and connected to the air tube assembly, wherein the onboard electric pump assembly is configured to charge air into the air tube assembly, and the onboard electric pump assembly comprises a controller;
a valve assembly configured to control air flow and pressure within the air tube assembly;
a firing mechanism assembly operable by a user; and
an air release valve assembly located between the air tube assembly and the firing mechanism assembly, wherein the air release valve assembly is configured to be triggered by the firing mechanism assembly to release the air in the air tube assembly to project pellets,
wherein the onboard electric pump assembly comprises a multi-stage air pumping assembly configured to sequentially increase air pressure in multiple stages to a predetermined level before charging the air tube assembly, and the controller is connected to a pressure monitor system configured to:
monitor pressure in the multi-stage air pumping assembly; and
monitor pressure in the air tube assembly.
2 . The air gun according to claim 1 , wherein the onboard electric pump assembly further comprises a gearbox assembly, wherein the gearbox assembly comprises a set of bevel gears configured to drive pumping actions for the multi-stage air pumping assembly.
3 . The air gun according to claim 2 , wherein the onboard electric pump assembly further comprises a battery and a DC motor powered by the battery.
4 . The air gun according to claim 1 , wherein the controller is configured to:
in response to a first input from the user on a user interface, start the DC motor to charge the air tube assembly.
5 . The air gun according to claim 1 , wherein the controller is configured to:
in response to a second input from the user on a user interface while the onboard electric pump assembly is charging the air tube assembly, stop the onboard electric pump assembly.
6 . The air gun according to claim 1 , wherein the controller is configured to:
in response to pressure drop in the air tube assembly below a first threshold value, start the onboard electric pump assembly to charge the air tube assembly.
7 . The air gun according to claim 6 , wherein the controller is configured to:
in response to the pressure in the air tube assembly reaches a second threshold value while the onboard electric pump assembly is charging the air tube assembly, automatically stop the onboard electric pump assembly, wherein the second threshold value is larger than the first threshold value.
8 . The air gun according to claim 1 , wherein the multi-stage air pumping assembly comprises a set of multi-stage tubes including:
a first-stage tube;
a second-stage tube enveloped by the first-stage tube; and
a third-stage tube enveloped by the second-stage tube.
9 . The air gun according to claim 8 , wherein the onboard electric pump assembly further comprises:
an air intake one-way valve in communication with the first-stage tube; and
a mobile connection sleeve, mechanically linked to a connector of the second-stage tube,
wherein the mobile connection sleeve is configured to move in a linear reciprocating manner, drawing air from atmosphere to pass through the air intake one-way valve, then sequentially compressing the air into the first-stage tube, the second-stage tube, the third-stage tube, and the air tube assembly.
10 . The air gun according to claim 9 , further comprising a one-way valve configured to prevent the compressed air in the air tube assembly from flowing back into the third-stage tube.
11 . The air gun according to claim 10 , wherein the gearbox assembly comprises:
a first bevel gear connected to an output shaft of the DC motor of the onboard electric pump assembly;
a second bevel gear connected to the first bevel gear; and
a connecting rod affixed to the second bevel gear, wherein:
the first bevel gear is smaller than the second bevel gear;
the first bevel gear is configured to rotate in response to movement of the output shaft of the DC motor;
the second bevel gear is driven to rotate by rotation of the first bevel gear; and
the connecting rod is configured to translate rotation of the second bevel gear into linear reciprocating movement, enabling the multi-stage air pumping assembly to draw the air into the multi-stage tubes.
12 . The air gun according to claim 1 , wherein the controller comprises:
a circuit board, equipped with a user interface; and
a circuit board bracket for mounting the circuit board onto the air gun.
13 . The air gun according to claim 12 , wherein the controller further comprises:
a display screen integrated into the circuit board, wherein the display screen is configured to display pressure in multiple units.
14 . The air gun according to claim 13 , wherein the controller further comprises:
a charging interface incorporated into the circuit board, wherein the charging interface is configured for charging the battery of the onboard electric pump assembly.
15 . The air gun according to claim 1 , wherein the controller is operable by the user through a user interface, wherein the user interface comprises a set of user interface controls comprising an up-adjustment button, a down-adjustment button, an on/off button, and a return button for user inputs.
16 . The air gun according to claim 1 , wherein the multi-stage air pump assembly comprises a two-stage air pumping assembly configured to sequentially increase air pressure in two stages to a predetermined level before charging the air tube assembly.