CN2157391Y

CN2157391Y - Safety protection cover for gas cylinder

Info

Publication number: CN2157391Y
Application number: CN93207157U
Authority: CN
Inventors: 徐开阵; 李雪松; 王祖尤; 黄九如; 陈映波
Original assignee: Agricultural Machinery Manufucturing & Repair Plant Toutunhe Farm Urumqi
Current assignee: Agricultural Machinery Manufucturing & Repair Plant Toutunhe Farm Urumqi
Priority date: 1993-03-14
Filing date: 1993-03-14
Publication date: 1994-02-23
Anticipated expiration: 2003-03-14

Abstract

The utility model discloses a safety protection cover for the gas cylinder, comprising a cylinder cover body, a torsional cover, a limiting clamp spring, a blocking clamp spring, and a twisting screw nail. The cylinder cover body and the torsional cover are movably matched. The cylinder cover body presents a hollow cylinder type with an upper and a lower opening, an inner screw thread matched with the gas cylinder is arranged at the lower end part. The torsional cover presents a stepped hollow cylinder type whose upper part is large and whose lower part is small; the cylinder at the lower part of the stepped type is inserted in the neck part of the upper end of the cylinder cover body.

Description

Safety protection cover for gas cylinder

The utility model belongs to the gas cylinder safely protective gear, and it is a kind of improvement to old-fashioned gas cylinder cover cap.

As everyone knows, oxygen cylinder is a kind of device of danger, and whether its safety directly affects people's property and life safety, and country clearly stipulates in " gas cylinder safely supervision rules ": gas cylinder should be worn fixed bottle cap.According to this requirement; this head of oxygen cylinder mounted valve all is equipped with the safety protection cover cap, but present bottle cap is being inflated, when using gas, cover cap removed with instrument; using up the back is loading onto; install and use very trouble, in use, it is thrown away often because of trouble; in carrying and using process, often angle valve is collided with like this; even break gas leakage, affect the working life of safety and angle valve, and maintenance expenses can increase also.

The purpose of this utility model is exactly to exist above-mentioned shortcoming and a kind of using of developing at old-fashioned gas cylinder protective cover; needn't tear lid during inflation open just can directly inflate; the gas cylinder angle valve is adequately protected, and robust novel gas cylinder safely protective cover is installed simply.

The utility model is by bottle cap body, torsion lid, spacing jump ring, envelope shelves jump ring, and the torsion pass screw is formed.Bottle cap body is the hollow ampuliform of upper and lower opening, and the underpart has the internal thread that connects with gas cylinder, and spiral shell covers on the inside with gas cylinder valve on gas cylinder, upper end portion (bottle neck) and present big, the little hollow garden of ladder column torsion lid formation is movingly down.Torsion lid ladder upper half part is blocked by step on the bottle cap body neck, is unlikely falling in the bottle cap body, and lower half portion is inserted the bottle neck the inside, forms movingly, moves up and down in bottle cap body upper half part, and displacement distance is opened distance with angle valve and equated.A torsion pass screw is equipped with in the torsion portion of covering, and marks closely the angle valve switch from the side, when rotary torsion covers, and can be with the angle valve switch opens, easily with gas input, output.Input, delivery outlet are opened on the symmetrical garden cylinder in bottle cap body both sides.For preventing that the angle valve switch from making progress, the upper end has the ring-like trough in one and half gardens in torsion covers portion's garden cylinder, an interior dress envelope shelves jump ring, blocking the angle valve switch makes progress, outer garden cylinder upper and lower end in torsion lid bottom also has one and half garden ring-type troughs simultaneously, in adorn spacing jump ring, utilize the neck of bottle cap body that torsion is covered to revolve Shi Buhui to take off from the bottle cap body neck.Owing to adopted above-mentioned design, when using and inflate, but, angle valve carried out sufficient protection as long as the rotary torsion lid with regard to the opening angle threshold switch, will not remove by protective cover.

Bottle cap body and torsion lid can cast or forging, punching press, is shaped through machining.

Below with reference to accompanying drawing this model utility is further described.

Accompanying drawing 1,2 is respectively the utility model structural representation master, attached view.

Accompanying drawing 3,4 is respectively the utility model parts torsion lid structural representation master, attached view.

Accompanying drawing 5,6 is respectively the utility model parts bottle cap body structural representation master, attached view.

Among the figure, 1 for block jump ring, 2 be bottle cap body, 3 for spacing jump ring, 4 for torsion lid, 5 for torsion pass screw, 6 be that delivery outlet, 7 is the inlet opening.

This safety cover in use; earlier with bottle cap body 2 spiral shells on oxygen cylinder; during inflation; can directly be connected on the inflation inlet by input port 7; because bottle cap body 2 and torsion lid 4 are for movingly, this moment, the rotary torsion lid 4, and dress torsion pass screw 5 thereon just can be passed to valve switch with torsion; make valve opening, oxygen just can directly be filled with gas cylinder. When being screwed into certain altitude on the torsion lid 4, spacing jump ring 3 mounted thereto just can not deviate from its spacing torsion lid that makes. Inflate when complete, be rotated down torsion lid 4, just can make valve closing by torsion pass screw 5. Because torsion lid is provided with step and carries out spacingly, the ambassador's valve rod that can prevent from exert oneself pushes up the interior sealing ring of bad valve. For preventing the valve prolapse upwards, at torsion lid 2 envelope shelves jump ring 1 has been installed simultaneously. When using oxygen, repeat above-mentioned action and get final product.

This over cap singly is not to be used on the oxygen cylinder, and similarly gas cylinder such as nitrogen cylinder etc. all are suitable for.

Embodiment: selecting the bottle cap height is 110 millimeters, and the garden is 90 millimeters of diameters outside the underpart, and interior spiral shell is the M78.5 millimeter, and the outer garden of neck is 62 millimeters of diameters, and interior garden is 47 millimeters of diameters, and average wall thickness is 4 millimeters, casts ampuliform with the ZG45 material, and carries out machining; Torsion lid height is 55 millimeters, is 31 millimeters with bottle cap body cooperation place height, and the garden is 76 millimeters of diameters outside the step top, and the garden is 47 millimeters of diameters outside the step bottom, and wall thickness is 4 millimeters, casts step-likely with the ZG45 material, and carries out machining; The torsion pass screw is elected the M8 millimeter as; Delivery outlet is wide to be 64 millimeters, and height is got for 60 millimeters by radius; The inlet opening is wide to be 54 millimeters, and height is got for 55 millimeters by radius.Just in 0.4-0.5 millimeter scope, two holes are not unison to be not more than 0.1 millimeter to the matching gap of torsion lid and bottle cap body.

The protective cover of making by above-mentioned size is used in can reach inflation on the oxygen cylinder, needn't tear lid open during with gas can finish protection angle valve, the effect of safe handling.

The utility model is simple in structure, and is easy to manufacture, and cost is low, aesthetic in appearance, and installs laborsavingly, sturdy and durable, is the novel protector of gas cylinder.

Claims

1, a kind of novel gas cylinder protective cover is made up of bottle cap body, torsion lid, spacing jump ring, envelope shelves jump ring, torsion pass screw, and it is characterized in that: bottle cap body goes to upper and lower the open hollow ampuliform, and the underpart has the internal thread that connects with gas cylinder; The torsion lid is presented big, the following little hollow garden of ladder column, and neck the inside, ladder bottom Cylinder insertion bottle cap body upper end, and formation can be upper and lower movingly mobile.

2, according to the described gas cylinder protective cover of claim 1; it is characterized in that: in the torsion lid ladder top outside the upper end of garden cylinder and the bottom lower end of garden cylinder respectively have the ring-like trough in one and half gardens; in envelope shelves jump ring and spacing jump ring are housed respectively, and torsion covers the portion side torsion pass screw of marking closely the gas cylinder valve switch is housed.

3, according to claim 1,2 described gas cylinder protective covers, it is characterized in that: bottle cap body symmetry bi-side have input, delivery outlet.