A two-way air valve and a pneumatic glass glue gun with the two-way air valve

Abstract

The invention discloses a bidirectional air valve which comprises a valve piston, a valve element, a valve body, a first sealing ring, a reset spring, an air hole and a valve base. The bidirectional air valve is opened and closed through movement of the valve piston and air pressure difference between the interior and the exterior of the air valve, bidirectional movement of air is achieved, and the air inflation and pumping processes can be completed. Meanwhile, the invention discloses a pneumatic type glass glue gun provided with the bidirectional air valve. The pneumatic type glass glue gun provided with the bidirectional air valve comprises a front-end glue barrel and a rear-end air pressure barrel which are in threaded connection; the rear-end air pressure barrel comprises a barrel body, a drive mechanism and an air storage mechanism; and the drive mechanism and the air storage mechanism are located inside the barrel body and are connected through the bidirectional air valve. The pneumatic type glass glue gun has the advantages of being simple in structure, convenient to use and environmentally friendly, glue is discharged continuously and high in quality, the work efficiency is improved, labor intensity is relieved, overflowing of the glue is effectively prevented, and the pneumatic type glass glue gun is suitable for various working environments and not limited to places where electric energy, gas energy and other energy are provided.

Description

technical field [0001] The invention relates to the field of glue guns, in particular to a two-way valve and a pneumatic glass glue gun with the two-way valve. Background technique [0002] Glass glue gun is a kind of sealing and caulking glue tool. It is often used in places where glue needs to be applied. It is widely used in construction and decoration, electronic appliances, automobiles and auto parts, ships and other industries. There are three main types of glass glue guns on the market today: manual glue guns, pneumatic glue guns and electric glue guns. [0003] The manual glue gun is that the user pushes the propelling rod of the glass glue gun to move through manual force, so as to push out the glass glue. Although the manual glue gun is cheap and unrestricted, due to the uneven manual force, it is difficult to push out the glue gun. The quality of the glass glue is poor and uneven, the efficiency of glue is low, the work intensity is high, and people are easily fa...

AI Technical Summary

Problems solved by technology

[0003] The manual glue gun is the user pushes the push rod of the glass glue gun to move by manually exerting force, so as to push out the glass glue. The quality of glass glue is poor and uneven, the efficiency of gluing is low, the work intensity is high, and people are prone to fatigue

[0004] Pneumatic glue guns rely on air pressure to push the propulsion rod of the glass glue gun forward, so that the glass glue is pushed out for gluing. Although the force of the pneumatic glue gun is uniform to make the quality of the glue uniform, but its use is relatively limited, and it needs to be compressed in the air. It is used in an environment where the machine provides compressed air, and it also requires a power supply at the site of use, which increases the difficulty of outdoor use, and the cost of use is high and inconvenient.

[0005] The electric glue gun is a kind of power supply to drive the push rod in the glass glue gun to move forward or backward, so as to push the glass glue out for gluing. The gun must be equipped with an independent power supply or battery when used, which not only increases the weight of the glue gun itself, but also increases the cost. It cannot be used in a working environment without power supply or cannot be charged in time.

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