Spray gun

Abstract

The invention provides a spray gun which comprises a machine shell, a spray bottle, a nozzle and a pump body, wherein the pump body is arranged in the machine shell; a spray cavity which communicateswith the spray bottle is arranged in the pump body; the spray bottle comprises a spray bottle shell body and a soft bottle body arranged in the spray bottle shell body; an exhaust structure used for communicating the spray bottle with the outside world is arranged on the pump body; and the spray bottle shell body is equipped with a hollowed-out part, so that the soft bottle body can be manually squeezed and air in the soft bottle body can be exhausted through the exhaust structure. When air exists in the soft bottle body, the soft bottle body can be squeezed through the hollowed-out part, andthen the air in the soft bottle body can be exhausted through the exhaust structure; when the air in the soft bottle body can be emptied by simply squeezing the soft bottle body, a liquid in the softbottle body can easily enter the spray cavity, and then the spray operation of the spray gun can be quickly and stably achieved; and accordingly, the spray efficiency of the spray gun can be improved,that is, the working efficiency of the spray gun can be improved.

Description

technical field [0001] The invention relates to the field of spray guns, in particular to a spray gun with high spraying efficiency. Background technique [0002] The spray gun is a device for atomizing the paint. It mainly sprays the surface of the workpiece to obtain a beautiful and uniform coating layer. Its main working principle is to use the internal pressure of the piston to reduce the space in the liquid container. , The air pressure increases, so that the liquid in the liquid container is pressed out, especially when the motor drives the piston to move continuously, the pressure in the spray chamber will increase rapidly, which will promote the atomization of the liquid sprayed from the nozzle and improve the spraying effect. [0003] There is an existing spray gun whose liquid storage container is soft and shrinkable. During use, as the liquid is sprayed out and decreases continuously, the liquid storage container also shrinks and becomes deflated, which can well e...

AI Technical Summary

Problems solved by technology

[0003] There is an existing spray gun whose liquid storage container is soft and shrinkable. During use, as the liquid is sprayed out and decreases, the liquid storage container also shrinks and becomes deflated, which can well ensure that the liquid is Complete spraying, reducing liquid residue, improving the utilization rate of liquid, and avoiding waste, but this structure also has certain problems. When there is air in the liquid storage container, the liquid cannot rise into the spray chamber of the pump body and cannot be realized. Spraying, affecting the normal work of the spray gun, reducing the spraying efficiency and work efficiency

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