KR200368526Y1 - gas thank for charge - Google Patents

Abstract

According to the present invention, the gas cylinder includes a cylindrical gas cylinder body; A cap coupled to the upper side of the gas cylinder body to seal the upper side of the body and having a valve mounting portion; A packing member supported by the mounting portion of the cap coupled to the gas cylinder body; A hollow which is supported by the cap to support the packing member and is in close contact with the inner circumferential surface of the mounting portion to maintain airtightness and to provide a coupling force with the mounting portion, and to communicate with the inside of the gas cylinder body in a longitudinal direction; A valve housing having peripheral jaws spaced apart from each other by a predetermined distance; A nozzle portion slidably installed in the hollow of the valve housing and having a first passage formed at a predetermined depth from an upper end portion, the nozzle portion having a first valve passage opened and closed by the packing member and communicating with the first passage; A second passage of the predetermined length is formed therein, the second valve passage communicating with the second passage on the outer circumferential surface and the third valve passage communicating with the second passage and selectively opened and closed by the circumferential jaws. A valve body having a cylinder portion formed thereon; And an elastic means installed inside the valve housing to elastically bias the valve body upward.

Description

Gas thank for charge

The present invention relates to a compact gas cylinder mounted on a portable gas burner for supplying gas, and more particularly, to a rechargeable gas cylinder with an improved valve unit for filling and discharging gas.

Butane gas, which is used as a main raw material of a portable gas burner, which is commonly used in a picnic party, a restaurant, or a home, is mounted on the burner in a state filled with a small gas cylinder, and disposed of after use. Such discarded gas cylinders are not recycled and discarded, which not only pollutes the surrounding environment but also wastes resources. In particular, there is a risk of explosion because residual gas exists inside the abandoned gas cylinder.

Recently, a portable gas cylinder that can be recharged has been proposed as a solution to solve such a problem, and an example thereof is disclosed in Korean Utility Model Registration No. 20-0217646.

The disclosed rechargeable butane gas cylinder has a rechargeable gas valve attached to the upper cap of the upper portion of the gas cylinder body, which is assembled by a nozzle cover by inserting an injection nozzle fitted with an o-ring on the upper portion of the valve body, and the valve body The lower portion of the injection nozzle inserted into the nozzle cap has a configuration in which the needle cap is built in the needle valve is supported by a spring to open and close the bottom of the nozzle hole of the injection nozzle.

In Korean Utility Model No. 20-0266354, the metal valve housing is fixedly coupled to the coupling hole of the upper body in which the mount cup is formed. Has one configuration.

And the registered Utility Model No. 20-0209190 discloses a filling butane gas cylinder, the butane gas cylinder is welded so that the gas cylinder body sealed with the upper and lower caps, the upper projection in the center of the upper cap protrudes out of the upper cap, An inner side of the protruding portion has an inlet tube formed with a female thread, a spring inserted into the inlet tube, a nozzle seated on an upper portion of the spring, a packing fitted to the nozzle, and a nozzle cap coupled to the inlet cap. do.

Since the gas cylinder as described above has a separate needle for intermittent injection when filling gas, the structure is relatively complicated and the unit cost for production is relatively high.

And Republic of Korea Utility Model No. 1990-0018365 discloses a butane gas cylinder for filling. The disclosed butane gas cylinder has a relatively complicated structure and high unit production cost since gas filling is performed at the bottom and gas is discharged at the upper cap side.

In order to solve the problems as described above, the applicant has applied for a refillable gas cylinder with improved valve unit to Korean Patent Application No. 2004-0042600. In the process of continuously researching and developing the gas cylinder, the coupling structure of the valve unit and the cap has been improved and applied for.

The present invention has been made to solve the above problems, and the object of the present invention is to provide a rechargeable gas cylinder which is relatively simple in structure of a valve unit that enables recharging and discharging, and which can essentially prevent leakage of gas. have.

Another object of the present invention is to provide a rechargeable gas cylinder that can reduce the cost of the product according to the manufacture of the valve unit, and can reduce the labor of the assembly.

1 is a partial cross-sectional view of the present invention is a rechargeable gas cylinder,

Figure 2 is an exploded perspective view of the valve unit according to the present invention,

3 and 4 are cross-sectional view showing an operating state of the valve unit according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10; Rechargeable Gas Cylinder

20; Valve unit

21; First packing member

30; Valve housing

40; Valve body

Fillable gas cylinder of the present invention to achieve the above object

A cylindrical gas cylinder body;

A cap coupled to the upper side of the gas cylinder body to seal the upper side of the body and having a valve mounting portion;

A packing member supported by the mounting portion of the cap coupled to the gas cylinder body;

It is supported by the cap to support the packing member and having an at least one support jaw in close contact with the inner circumferential surface of the mounting portion on the outer circumference to maintain the airtightness and provide a coupling force with the mounting portion, in communication with the inside of the gas cylinder body in the longitudinal direction A valve housing having circumferential jaws spaced apart from each other by a predetermined gap;

A nozzle portion slidably installed in the hollow of the valve housing and having a first passage formed at a predetermined depth from an upper end portion, the nozzle portion having a first valve passage opened and closed by the packing member and communicating with the first passage; A second passage of the predetermined length is formed therein, the second valve passage communicating with the second passage on the outer circumferential surface and the third valve passage communicating with the second passage and selectively opened and closed by the circumferential jaws. A valve body having a cylinder portion formed thereon;

And an elastic means installed in the valve housing to elastically bias the valve body upward.

In the present invention, the peripheral jaw and the supporting jaw may be formed by coating a rubber material or by injecting a soft rubber material for forming the peripheral jaw or the supporting jaw when forming the valve housing.

Hereinafter, a preferred embodiment of the fillable gas cylinder according to the present invention will be described in detail with reference to the accompanying drawings.

One embodiment of a gas-fillable gas cylinder according to the present invention is shown in FIGS. 1 to 3.

Referring to the drawings, the fillable gas cylinder 10 is made of a stainless steel plate or iron plate and has a gas cylinder body 12 having a space portion 11 filled with gas therein, and mounted on an upper side of the gas cylinder body 12. And a valve unit 20 installed in the cap 13 to fill and discharge the gas stored in the gas cylinder body 12.

The gas cylinder body 12 may be formed by bending a plate-shaped member into a cylindrical shape or cutting a tubular tube by a predetermined length, and both ends of the gas cylinder body 12 may be formed by combining a cap 13 and an end cover (not shown). The shape of the gas cylinder body is not limited by the above-described embodiment, and may be variously modified in diameter, height, shape, and the like.

The valve unit 20 is installed in the cap 13 is coupled to the upper side of the main body 11, as shown in Figure 2 and 3, which is supported in the cylindrical mounting portion (13a) of the cap 13 It is supported by the packing member 21 and the cap 13 to press the packing member 13, the protrusion to guide the valve body to be described later and spaced apart from each other at predetermined intervals on the inner peripheral surface of the longitudinal hole 31 formed in the longitudinal direction The jaw 32 has a valve housing 30 formed therein.

A lower portion of the valve housing 30 extends radially in the induction pipe 33 to communicate the inside of the hollow part 31 and the gas cylinder.

The valve body 40 is slidably installed in the packing member 21 having the hollow part 31 and the through hole 21a of the valve housing 30. The valve body 40 is slidably installed with respect to the packing member 21 and is selectively opened and closed by a first passage 41 and a packing member 21 formed at a predetermined depth from an upper end thereof. And a nozzle portion 43 in which the first valve passage 42 is formed. The second and third valve passages 45 extending from the nozzle part 24 and having a predetermined length therein are formed therein, communicate with the second passage 44 on the outer circumferential surface thereof, and are spaced in the length direction thereof. (46) is provided with a cylinder portion (47) formed. Here, the second passage 44 formed in the cylinder portion 47 may be formed by forming a predetermined length from the lower end of the cylinder portion 47, and inserting and closing the plug 44a at the inlet side thereof. A plurality of first and third valve passages 42 and 46 may be formed on the same circumference.

The inner circumferential surface of the valve housing 30 corresponding to the third valve passage 46 positioned on the lower side of the second and third valve passages 45 and 46 is disposed at upper and lower portions of the third valve passage 46. 32 is formed, the third valve passage 46 is opened and closed when the valve body 40 is elevated. Here, since the circumferential jaws 32 are formed in the hollow part 31 of the valve housing 30, gas flows between the outer circumferential surface of the cylinder portion 47 of the valve body 40 and the inner circumferential surface of the valve housing 30. A passage is formed.

Between the bottom of the valve housing 30 and the lower end of the valve body 40, that is, the lower end of the cylinder 47, an elastic means 50 for elastically biasing the valve body 40 upward is provided. The elastic means 50 is composed of a coil spring 51.

On the other hand, in the above embodiment, the support jaw 60 is installed on the outer circumferential surface of the valve housing 30 in order to provide a coupling force and airtight force to the mounting portion of the cap 13 is a valve housing 43 made of synthetic resin ) May be formed integrally or made of a synthetic resin that is relatively softer than the material of the valve housing 30. In this case, the valve housing and the support jaw 60 may be formed by double injection. In particular, the support jaw 60 and the perimeter jaw 32 installed in the valve housing may be formed by coating a rubber material or may be formed by double injection of a rubber material when molding the valve housing.

Referring to the operation of the fillable gas cylinder according to the present invention configured as described above are as follows.

In order to discharge the gas filled in the fillable gas cylinder 10, the nozzle unit 43 is pressed as shown in FIGS. 3 and 4. In this way, the first valve passage 24b blocked by the packing member 21 is exposed to the gap between the hollow 31 of the valve housing 30 and the valve body 40, and is shown in FIG. 3. As described above, the third valve passage 46 of the cylinder portion 47 blocked by the circumferential jaws 32 is the hollow portion of the valve housing 30 communicated with the gas cylinder body 12 by the induction pipe 33. 31).

Accordingly, the liquid gas inside the gas cylinder body 12 is vaporized to form the lower side of the hollow portion 31 of the induction pipe 33 and the valve housing 30, the third valve passage 46, and the second passage 44. In addition, the gap is discharged to the outside through the gap between the inner circumferential surface of the second valve passage 45 and the valve housing 30 and the cylinder portion 47, the first valve passage 42, and the first passage 41.

In the above-described process, the first packing member 21 may be slightly shaken to leak airtightness, but the outer circumferential surface of the valve housing 30 may be in close contact with the inner circumferential surface of the cylindrical mounting portion 13a of the cap 13 so that Since support jaw 60 is formed to provide leakage and support force of the valve housing 30, the support force of the valve housing 30 with respect to the cap 13 may be increased, and a separate device may be provided for airtightness and support force. no need.

When the pressing force acting on the nozzle part is removed, the valve body 40 is raised by the coil spring 51 which is the elastic member. Accordingly, the first valve passage 42 is blocked by the first packing member 21, and the third valve passage 46 is blocked by the two jaws 32.

In order to fill the gas cylinder 10 with gas, the injection unit 43 is pressurized from a separate filling device (not shown) to be vaporized as in the case of discharge of gas, so that the first passage 41 and the first valve passage 42 are filled with gas. , The gap between the inner circumferential surface of the valve housing 30 and the cylinder portion 47, the second valve passage 45, the second passage 44, the third valve passage 46, the hollow 31, and the induction pipe 33 ) Is filled in the space 11 of the gas cylinder body 12.

As described above, the valve unit according to the present invention and the rechargeable gas cylinder using the same are relatively simple in structure because the charging and discharging are performed by the elevation of the valve body relative to the valve housing. In particular, since the first and third valve passages are opened and closed by the first and second packing members during charging and discharging, the passages are blocked in a double manner to prevent the leakage of gas. In addition, since the support jaw is formed in the valve housing to provide a pressing force for coupling force and airtightness when the cap housing is coupled with the cap, the coupling structure of the valve housing and the cap can be simplified. On the other hand, since the circumferential jaw formed inside the valve housing is coated with a rubber material, the cost according to its manufacture can be greatly reduced, and further, productivity can be improved.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible.

Therefore, the true scope of protection of the present invention should be defined only by the attached claims.

Claims (4)

A cylindrical gas cylinder body; A cap coupled to the upper side of the gas cylinder body to seal the upper side of the body and having a valve mounting portion; A packing member supported by the mounting portion of the cap coupled to the gas cylinder body; A hollow which is supported by the cap to support the packing member and is in close contact with the inner circumferential surface of the mounting portion to maintain airtightness and to provide a coupling force with the mounting portion, and to communicate with the inside of the gas cylinder body in a longitudinal direction; A valve housing having peripheral jaws spaced apart from each other by a predetermined distance; A nozzle portion slidably installed in the hollow of the valve housing and having a first passage formed at a predetermined depth from an upper end portion, the nozzle portion having a first valve passage opened and closed by the packing member and communicating with the first passage; A second passage of the predetermined length is formed therein, the second valve passage communicating with the second passage on the outer circumferential surface and the third valve passage communicating with the second passage and selectively opened and closed by the circumferential jaws. A valve body having a cylinder portion formed thereon; And an elastic means installed inside the valve housing to elastically bias the valve body upwardly. According to claim 1, The circumferential jaw is fillable gas cylinder, characterized in that located in the upper and lower portions of the third valve passage. The method of claim 1, At least one of the support jaw or circumference jaw is filled with a gas cylinder, characterized in that the coating made of a rubber material. The method of claim 1, The resilient means is provided in the valve housing is provided with a spring for elastically biasing the cylinder portion upwards, characterized in that the filling gas cylinder.