a foam gun

Abstract

The invention provides a foaming gun, belonging to the technical field of engineering, aiming at solving the problems that the use tool of the existing foaming agent pressure tank is troublesome to machine, high in production cost, etc. According to the foaming gun, the foaming agent pressure tank arranged on the foaming gun comprises a tank body with a material nozzle. The foaming gun comprises a spray pipe and a gun handle held by operators, wherein a connection part for fixing the tank body is arranged on the gun handle, the inner end of the spray pipe is arranged at the connection part and can be communicated with the material nozzle of the tank body, the outer end of the spray pipe extends out of the gun handle, a starting structure capable of pushing the inner end of the spray pipe and opening the material nozzle of the tank body after being deformed by applying an outer force is arranged on the gun handle, and the opening structure can be automatically reset and the material nozzle of the tank body can be closed when the application of the outer force is stopped. The foaming gun has the advantages of being convenient to machine, low in cost, etc.

Description

technical field [0001] The invention belongs to the technical field of engineering, and relates to a tool for using a polyurethane foaming agent, in particular to a foaming gun. Background technique [0002] After the door frame and window frame are installed in the construction project, there will be gaps between them and the wall, and some equipment, pipes, etc. will also have gaps after installation, which must be filled to make them smooth or sealed. At present, most of them are filled with polyurethane foaming agent. This material has the advantages of convenient use and leak-proof and heat preservation. The polyurethane foaming agent is packaged in a pressure tank and insulated from the air. Because of its characteristic that it will foam and solidify when it comes into contact with the air, special tools are required to fill the gaps with the polyurethane foaming agent. [0003] Existing tools for using polyurethane foaming agents, such as Chinese patent documents di...

AI Technical Summary

Problems solved by technology

[0004] The tool used for this kind of foaming agent pressure tank is stable and labor-saving, and the spray is even. The function of meshing is to push the push bar to move up, so that the top pressure piece on the push bar acts on the handle to open the spray nozzle of the tank body. The tool used for this kind of foaming agent pressure tank is generated by the meshing of the gear and the rack. Mobile, high processing precision, troublesome processing, and many parts, high production cost

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