High pressure gas cylinder

Abstract

This invention provides a high pressure gas cylinder which comprises a storage tube, an inlet cover, an inlet junction, an outlet cover, an outlet junction, an anti-pressure plate, a solenoid valve, an inner check valve and an outer check valve. The storage tube is provided with longitudinally shaped join troughs distributed evenly on its inner surface. The assembly of the system starts by inserting an anti-pressure plate into each of two openings of the tube, followed by fastening the through holes on the inlet and outlet covers to the corresponding join troughs with the screw bolts, which makes all the joints enclosed by the tube, and makes the closure more solid. The outlet cover is provided with an inner check valve and an outer check valve at its interior and exterior respectively, which substantially avoid all kinds of erroneous operations resulting in the abnormal guiding of the high pressure gas in flowing back into the tube. A tiny through hole is built on the outlet cover, connecting to the outside, where a solenoid valve is used for the control of the out flowing of small amount of gas.

1 . A high pressure gas cylinder, comprising at least a storage tube, an inlet cover, an inlet junction, an outlet cover, an outlet junction, an anti-pressure plate and an inner check valve; where said storage tube shapes a cylinder with a desired inner diameter, possessing an opening at each of its both ends, and being provided with four longitudinally shaped join troughs distributed evenly on its inner surface; said inlet cover being provided with four through holes distributed evenly on its exterior surface, having a screw hole formed at its center, and possessing inwardly protruded arced walls on the interior surface near its rim, where the arced walls and the through holes are located in an alternate way, and a gap being formed between the arced walls and the enclosure on the rim of said inlet cover, to accommodate a sealing ring; said inlet junction, opposite to the screw hole of said inlet cover, being provided with a threaded tube, a handle portion and a plug joint; said outlet cover being provided with four through holes distributed evenly on its exterior surface, having a screw hole formed at its center, and having inwardly protruded arced walls on the interior surface near its rim, where the arced walls and the through holes are located in an alternate way, and a gap being formed between the arced walls and the enclosure on the rim of said outlet cover, to accommodate a sealing ring, and the screw hole of said outlet cover forming a backward withstanding set on the other side, where the center of the withstanding set shields the screw hole, the rim of the withstanding set forming a relatively lower gap, and a ring body being formed at the raised place next to the gap, where the ring body being provided with a ring gap thereon; said inner check valve comprising a dented membrane, a cover, a sealing ring and a plurality of screw bolts, where the cover has a through hole at its center, and the membrane being able to shield the area of the withstanding set, and the sealing ring being lodged in the gap of the ring body, followed by placing the exterior side of the cover on the ring body and the sealing ring and by fastening them with the screw bolts, a tiny distance between the inner side of the cover and the withstanding set being reserved for the movement of the membrane by the gas impelling, which produces one-way ventilation effect; said outlet junction, opposite to the screw hole of said outlet cover, being provided with a threaded tube, a handle portion and a plug joint; said anti-pressure plates shaping a circular disc with a diameter same as the inner diameter of said storage tube, and four arced indents, corresponding to the four join troughs, being distributed evenly along its rim, whereas a plurality of holes are devised thereon for the ventilation of gas, one side thereof appearing slightly indented around its center and being provided with an arced and cross-shaped reinforced rib while the other side is set into a slight protruded surface; during assembling, said anti-pressure plate being first inserted in each of the two openings of said storage tube with the indented side facing inside, and followed by clasping each of the arced indent thereof on the corresponding join trough; the sealing rings being put into the corresponding gaps respectively, and proceeding to place said inlet cover and outlet cover on the openings of said storage tube respectively, the through holes on said inlet cover and outlet cover being aimed at the join troughs one by one, where the plurality of the screw bolts are pierced through the through holes and joined helically the join troughs; said inlet junction having its threaded tube joined helically the screw hole of said inlet cover tightly while said outlet junction has its threaded tube joined helically the screw hole of said outlet cover tightly. 
   
   
       2 . A high pressure gas cylinder as in  claim 1  wherein an outer check valve is installed in between the plug joint and the handle portion of said outlet junction, and a repelling set being set up by the plug joint facing the handle portion, where a notch is furnished around the repelling set, a cavity being set up by the handle portion facing the plug joint, where a through hole is devised in the center, which is connected to the screw tube; a membrane being lodged in the cavity, and an elastic element having its one end placed against the membrane while the other end is to place against the notch; the repelling set by the plug joint being inserted into the cavity and followed by a fixed joining, the elastic element being then compressed to impel the membrane to shield the through hole of the cavity, where a minute gap exists between the membrane and the repelling set, which is for the movement of the elastic element during its compression by the membrane due to the gas impelling, and a one-way ventilation being brought about. 
   
   
       3 . A high pressure gas cylinder as in  claim 1  wherein a tiny through hole on said outlet cover which extends outward and is bent to form a joint, where the connection between the tiny through hole and the joint is controlled by a solenoid valve.