Foaming tool

Abstract

A foaming tool comprises a gun body, a liquid inlet valve, a liquid outlet valve, a liquid outlet channel and a switching device, wherein the switching device can open or close the liquid outlet valve, and the liquid outlet valve comprises a liquid outlet nozzle with an outlet, a valve plug and reset springs. The foaming tool is characterized in that a shoulder is arranged at the head of the valve plug and is provided with a convex part, a concave part or a thread. The foaming tool also comprises a sealing element made of plastics. At least part of the plastic sealing element is connected with the convex part, the concave part or the thread into a whole structure, and the plastic sealing element connected with the valve plug into a whole is sealed with the liquid outlet nozzle. The invention effectively prevents and avoids leakage and/or curing of foam caulking agents in the foaming tool, and leakage, burning or explosion dangers of the foam caulking agents or gases, improves the corrosion resistance, tightness and stability of the sealing element, effectively avoids leakage of the foam caulking agents to the outside due to abrasion, looseness, deformation, damage, shedding, corrosion by foam fillers or corrosion by cleaning agents, effectively prevents and avoids blockage of the channel in the foaming tool or the outlet and effectively prevents leakage of the foam fillers or gases due to deformation or fracture of the liquid outlet nozzle. The foaming tool enjoys simple and reasonable structure, safe and clean use, prolonged service life and low cost, greatly improves foaming output and quality of the foam caulking agents, saves the resources and is suitable for mass production.

Description

technical field [0001] The present invention relates to a foaming tool for spraying foam caulking agent. Background technique [0002] About the anti-seepage installation, caulking or leak repair of doors, windows, walls, coatings, concrete, wood and plastic surfaces in buildings and houses, insulation of air-conditioning installations, leak-proof layers, installation of various pipes, vents And the hole filling of the wire outlet, the switch socket and the installation that require insulation, etc., generally use foam sealants as raw materials, for example: foam sealants can use gas and chemical materials with their own air pressure, such as using Butane gas and polyurethane, etc., expand after spraying to form a foam, and then naturally solidify. When in use, the foam sealant is released through the foaming tool to achieve installation, caulking, leak repair, heat preservation, insulation or bonding, etc. Purpose, the channel of the foam sealant in the foaming tool is gen...

AI Technical Summary

Problems solved by technology

Due to the strong viscous force of the foam sealant, the continuous movement or twisting of the valve core during construction can easily pull (stick) the sealing ring in the liquid nozzle, causing the sealing ring to wear or loosen or deform or fall off In addition, during the construction, the valve core moves back and forth continuously, and the head of the valve core is easy to poke the inner side of the sealing ring, which is easy to cause damage to the sealing ring. Therefore, there is still leakage of foam sealant or gas or foam. The filler is solidified, shortening the service life of the foaming tool

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