Nail gun aerosol can and filling method thereof

Abstract

An aerosol container of the nail gun includes a container body, a valve body (3), a valve core (5), a sealing ring (4) and an elastic piece (8). The upper end of the valve body (3) is flush mounted in the container body. The lower end of the valve body (3) is in tight connection with an inner bag (1). The valve core (5) is installed in the valve body (3). The upper end of the valve core (5) forms a tubular valve nozzle. An inner circumference B and an outer circumference A are manufactured on the upper end of the valve body (3), and the inner circumference B is lower than the outer circumference A. The lower end face of the sealing ring (4) abuts against the upper end of the inner circumference B, and the margin of the sealing ring (4) is contained in the outer circumference A. When the valve core (5) is in the first axial position, the upper necking section C and the lower necking section D is respectively located inside and out side of said boss, and the upper surface and the lower surface of the sealing ring (4) respectively abut closely to the boss and the inner circumference B; when the valve core (5) is in the second axial position, the upper necking section C locates on the opening of the boss, and the upper surface of the sealing ring (4) departs from the lower surface of the boss. Therefore, it's convenient to fill, and it's effective to prevent gas leakage.

Description

technical field [0001] The invention relates to an improvement of a fuel container for providing fuel to a fastener power driving tool, in particular to an aerosol tank for a nail gun, and also relates to a filling method thereof. Background technique [0002] Tools (such as nail guns) that drive fasteners by means of combustion power are widely used in many fields such as architectural decoration. Retrieval found that US patents Re32,452; US4,403,722, US4,483473; US4,483474; US5,197,646 and US5,263,439 respectively carried out related descriptions. [0003] When the above-mentioned combustion power-driven fastener tool is used, a fuel container containing fuel is required to provide fuel as a working medium to the combustion chamber of the tool through an output valve. US Patent No. 5,115,944 promptly discloses the typical structure of this type of fuel dispenser: it includes an outer tank, an inner bag, an output valve, and a tank cover. The injection valve is engaged in...

AI Technical Summary

Problems solved by technology

Practice has proved that this type of fuel dispenser has the following disadvantages: 1), first fill the external tank with pressurized propellant gas (usually a combustible gas with the same composition as the inner bag), and then fasten the tank cover with the external tank Sealing and fastening, pressurized propulsion gas loss is more, thereby increasing the cost, and causing pollution to the environment; 2), the inner bag and the output valve are difficult to seal reliably, and it is easy to cause leakage

Practice has proved that this assembly has the following disadvantages: 1), when filling, it is necessary to fill the external tank with pressurized propellant gas (usually a combustible gas with the same composition as the inner bag), and then connect the tank cover with the external tank. The tank is picked up and sealed tightly, so the pressurized propulsion gas is lost more, the cost is increased and the environment is polluted; 2), the sealing between the lower valve body and the upper valve body is not ideal, and it is easy to leak

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