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.

1 . A fluid reservoir for a paint spray gun, comprising:
 a container having an opening and a cover body that sleeves on the container opening, wherein the cover body is provided with a connecting port that connects with the paint spray gun, a side of the container has a scale, the container is provided with a ventilation device, a filter device is installed in the fluid reservoir, the cover body is provided with a groove corresponding to a periphery of the container opening, the periphery of the container opening is inserted into the groove, and the cover body and the container are tightly connected by a buckle mechanism.   
     
     
         2 . The fluid reservoir for the paint spray gun according to  claim 1 , wherein the buckle mechanism comprises a clamping wing disposed on the cover body and a rib disposed on the container and buckled with the clamping wing. 
     
     
         3 . The fluid reservoir for the paint spray gun according to  claim 1 , wherein the buckle mechanism comprises a clamping wing disposed on the container and a rib disposed on the cover body and buckled with the clamping wing. 
     
     
         4 . The fluid reservoir for the paint spray gun according to  claim 2 , wherein the clamping wing is provided with a retainer and the retainer is buckled with the rib. 
     
     
         5 . The fluid reservoir for the paint spray gun according to  claim 1 , wherein the filter device is a filter screen having a buckle portion and the filter screen is buckled on the cover body. 
     
     
         6 . The fluid reservoir for the paint spray gun according to  claim 5 , wherein the filter screen is provided with a reinforcing rib and the reinforcing rib at least comprises an annular ring buckled with the cover body. 
     
     
         7 . The fluid reservoir for the paint spray gun according to  claim 6 , wherein the filter screen is provided with a raised portion departing from the connecting port. 
     
     
         8 . The fluid reservoir for the paint spray gun according to  claim 1 , wherein a seal ring is installed in the groove and the periphery of the container opening abuts against the seal ring. 
     
     
         9 . The fluid reservoir for the paint spray gun according to  claim 1 , wherein the connecting port is provided with an inserted member and the inserted member is used together and matches with the paint spray gun. 
     
     
         10 . The fluid reservoir for the paint spray gun according to  claim 1 , wherein the container is provided with or formed with a placement portion for placing horizontally. 
     
     
         11 . The fluid reservoir for the paint spray gun according to  claim 3 , wherein the clamping wing is provided with a retainer and the retainer is buckled with the rib.