Fluid reservoir for paint spray gun

Abstract

A fluid reservoir for a paint spray gun comprises a container having an opening and a cover body that sleeves on the opening; the cover body is provided with a connecting port that connects with the paint spray gun; a side of the container has scale and the container is provided with a ventilation device; a filtering device is installed in the fluid reservoir; the cover body is provided with a groove corresponding to the periphery of the container opening; the periphery of container opening is inserted into the groove; a buckle mechanism connects the cover body with the container. Compared with the structure of screw thread connection, such connection manner improves the tightness between the cover body and the container, and makes the cover body and the container easier to be assembled and disassembled.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a fluid reservoir for a paint spray gun.BACKGROUND OF THE INVENTION[0002]Conventionally, a fluid reservoir for a spray gun generally includes a container and a cover that are connected by screw threads. The cover is provided with a vent on a top thereof, or the container is provided with a ventilation device. As the connection screw threads of the container and the outer surface of the container have a smooth transition, when the paint is spilled accidentally in the course of feeding or pouring, the spilled paint may directly flow through the connection screw threads and contaminate a large area of the outer surface of the container, which causes difficulty in cleaning the container.[0003]Chinese Utility Model Patent No. CN201006515 entitled “PAINT TANK WITH ORNAMENT RING FOR PAINT SPRAY GUN” discloses a paint tank with an ornament ring for a paint spray gun that includes a paint tank body and a cover that connects with th...

AI Technical Summary

Benefits of technology

[0004]To overcome the defects existing in the related art, the present invention is directed to a fluid reservoir for a paint spray gun having a simple structure with improved tightness between the cover body and the container.

[0016]As compared with the related art, the fluid reservoir for the paint spray gun of the present invention at least has the following advantages.

[0017]Firstly, as compared with the related art, in the fluid reservoir for the paint spray gun of the present invention, the cover body is provided with a groove corresponding to the periphery of the container opening and the periphery of the container opening is inserted into the groove, which improves the tightness between the cover body and the container. The cover body and the container are connected by a buckle mechanism, which further improves the connection tightness of the container. This structure in comparison with the screw thread connection structure is easier to be assembled and disassembled. Secondly, the buckle mechanism includes a clamping wing and a rib buckled with the clamping wing. The buckle structure improves the attachment strength between the cover body and the container, so that the fluid reservoir has a better sealing performance. Furthermore, the filter screen is provided with a raised portion departing from the connecting port and the filter screen may be detached from the cover body by pulling the raised portion, which is convenient for cleaning and replacement of the cover body. Finally, the connecting port is provided with an inserted member, and the inserted member is used together with the paint spray gun, in which different inserted members may be disposed for matching different models of the paint spray gun.

Problems solved by technology

As the connection screw threads of the container and the outer surface of the container have a smooth transition, when the paint is spilled accidentally in the course of feeding or pouring, the spilled paint may directly flow through the connection screw threads and contaminate a large area of the outer surface of the container, which causes difficulty in cleaning the container.

Although this utility model solves the problems of large-area paint contamination to the paint tank body, the paint still has a chance of contamination to the screw thread of the paint tank body or the cover, which incurs difficulty in assembling or disassembling of the paint tank body and the cover or even worse the paint tank body and the cover cannot be assembled or disassembled due to the contamination of the paint or a leakage occurs after the assembly.

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