A hand-held pneumatic extrusion device for hard tube shell packaging ointment

Abstract

The invention relates to a handheld pneumatic squeezing device for soft pasty fluid packaged in a hard tube shell. The handheld pneumatic squeezing device comprises the tube-barrel-shaped packaging shell filled with soft pasty fluid media and a movable blocking piston built in the packaging shell. The handheld pneumatic squeezing device is characterized in that a fast connection sealing tube base connected with the packaging shell in a sealed manner is arranged; the fast connection sealing tube base, the inner wall face of the packaging shell and the blocking piston jointly form a volume-extensible thrust cavity; besides, a gas channel controlled by a manual switch and communicating the thrust cavity with an external high-pressure gas source is further arranged; and the blocking piston is driven under the gas pressure to move and squeeze out the soft pasty fluid media in the packaging shell. Because the simple fast connection sealing tube base is adopted, a manufacturing material is reduced, and therefore the production cost is reduced; because the exposed packaging shell layout is adopted, a soft pasty fluid product can be fast replaced, and therefore agreeableness is improved; and because a telescopic and overturning force bearing pull rod is adopted, the handheld pneumatic squeezing device can adapt to packaging shells in different models, and therefore adaptability is extended.

Description

technical field [0001] The invention relates to a tube shell packaging ointment extruder for on-site bonding, sealing, leak repair, coating and filling, in particular to a hand-held hard tube shell packaging ointment extruder using air pressure as the driving force for extrusion. out of the device. Background technique [0002] In our daily life and work, it is often necessary to bond and repair various objects together, or to fill, seal and repair some holes and gaps, or to seal the outer surface of the object. Coating and reconstruction on the surface, these operations need to deliver the ointment medium with extrudable flow characteristics such as adhesives, glass glue, paste or fillers to specific target parts. As we all know, in order to facilitate storage, transportation and use, the above-mentioned ointment medium is usually sealed in a hard tube shell container in the form of a small package, and then squeezed out to the target area when needed. In the past, the op...

AI Technical Summary

Problems solved by technology

However, the air pressure-driven extrusion tools in the prior art still have imperfections, mainly in: 1) the cost is high, because the air-driven accommodating cavity must contain the ointment bobbin as a whole, due to the need for airtightness The accommodating cavity is made into an integral closed shell cylinder with high strength requirements, so it must consume more manufacturing materials, so its production cost is high; 2) low adaptability, on the one hand, the length of the shell cylinder cannot be adjusted However, it can only be used for ointment tubes with limited packaging types. On the other hand, the housing cavity of the tube shell consumes a lot of air and must be equipped with stable and continuous air supply equipment, making it unsuitable for outdoor operations, so its adaptability is low; 3) Pleasantness is poor. Since the tube shell must completely wrap the bobbin containing the ointment working substance, the volume must be large and the weight must be heavy. It is difficult to hold during use and the operability is not good, so its pleasantness poor

To sum up, the existing air pressure-driven hard tubular packaging ointment extrusion device still has room for improvement

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