Device for adjusting air pressure of spray gun and method for the same
AssigneeHui Bao Enterprise Co., Ltd.
InventorWAN PAO CHEN
Life of this patent
Estimating the term…
Abstract
A device for adjusting air pressure of a spray gun, and a method for adjusting air pressure of a spray gun includes installing an air adjustment valve in a first chamber located at the rear end of a rear path of the spray gun. The spray gun is connected with a compressor and the users operates the air adjustment valve to reduce the pressure in the first chamber, and the second chamber is supplied with a pre-set pressure so as to stably provide constant pressure to the front path to proceed paint spraying task.
Claims10
A method for adjusting air pressure of a spray gun, comprising:
- a step of establishing chambers:
- establishing a first chamber and a second chamber at a rear end of a trigger valve and above a main path in a grip of the spray gun, the first chamber communicating with the second chamber;
- a step of establishing an air adjustment valve:
- installing a movable part and a spring to a first end of a tube, and installing an adjustment member to a second end of the tube to form the air adjustment valve, the tube having a radial hole defined radially through the tube;
- a step of installing the air adjustment valve:
- installing the air adjustment valve in the first chamber, aligning the radial hole of the tube with an opening of the main path in the grip, and
- a step of establishing marks on the adjustment member:
- respectively forming a threaded section and a knob to two ends of the adjustment member, forming a groove to an outer periphery of the adjustment member and located between the two ends of the adjustment member, forming the marks to the knob, the marks being made corresponding spring constant “k” of the spring.
A device for adjusting air pressure of a spray gun, comprising:
- a spray gun having a rigger and a grip, a main path formed in the spray gun, a grip path formed in the grip, a sub path communicating with the grip path;
- a trigger valve connected to the spray gun and contacting the trigger, the trigger valve dividing the main path into a front path and a rear path, the front path communicating with a nozzle, the rear path located at a rear end of the trigger valve and communicating the sub path and the grip path, a first chamber and a second chamber respectively formed in the rear path;
- an air adjustment valve located in the first and second chambers, the first chamber located at the rear end of the trigger valve and above an opening of the sub path, wherein the second chamber is supplied with a pre-set pressure from a compressor so as to provide air pressure to the front path by operating the air adjustment valve.
Dependencies are inferred from the claim text.