KR200352089Y1 - gas thank for charge - Google Patents

Abstract

According to the present invention, the fillable gas cylinder includes a gas cylinder body having a space portion in which gas is filled; A cylinder member installed on the main body and extending to a space part filled with the gas, and a valve unit coupled to and separated from the cylinder member by a coupling means.

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 an improved gas cylinder of a valve unit for charging and discharging gas.

Butane gas, which is used as a main raw material of a portable gas burner 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. Thus discarded gas cylinders are not recycled and discarded, thus polluting the environment. In particular, there is a risk of explosion because residual gas exists inside the abandoned gas cylinder. Collecting and disposing of these gas cylinders is expensive and time-consuming, and resources are difficult to recycle.

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.

Korean Utility Model Registration No. 20-0266354 locks the metal valve housing to the coupling hole of the upper body on which the mount cup is formed, inserts the valve member into the metal valve housing, and then presses the bottom of the detachable part of the valve member to form a locking part. Have as much configuration as possible.

And the registered Utility Model No. 20-0209190 discloses a filling butane gas cylinder, the butane gas cylinder is welded to the gas cylinder body sealed by the upper and lower caps, the upper projection in the center of the upper cap protrudes outside 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 placed on an upper portion of the spring, a packing fitted to the nozzle, and a nozzle cap coupled to the inlet cap. do.

As described above, the fillable gas cylinders have a structure in which a cylinder or an inlet pipe corresponding to the valve housing is integrally formed with the gas cylinder, so that the parts constituting the valve, ie, the injection nozzle, the packing, the spring, etc., are worn or bad due to the repeated use of the gas cylinder. If there is a problem that can not reuse the gas cylinder.

In addition, the refillable container as described above does not satisfy the gas safety standard that allows the valve to be replaced.

The present invention is to solve the problems described above, by providing a rechargeable gas cylinder that can be replaced and repaired in the event of damage to the valve unit by allowing the valve unit to be recharged and discharged can be combined and separated from the gas cylinder. There is a purpose.

Another object of the present invention is to provide a rechargeable gas cylinder that can simplify the structure of the valve unit and increase the reliability of the operation.

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

Figure 2 is an exploded perspective view showing an extract of the valve unit of another fillable gas cylinder in the present invention,

3 is a cross-sectional view of the valve unit shown in FIG.

4 is a cross-sectional view showing a gas cylinder equipped with a valve unit of another embodiment;

FIG. 5 is a sectional view of the valve unit shown in FIG. 4. FIG.

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

10; Rechargeable Gas Cylinder

20; Cylinder member

30; Valve unit

40, 60; gas filling valve

Rechargeable gas cylinder of the present invention to achieve the above object,

A gas cylinder body having a space part filled with gas therein;

A cylinder installed in the main body and extending to a space part filled with the gas;

It characterized in that it comprises a valve unit which is coupled to and separated from the cylinder by a coupling means.

In the present invention, the valve unit is screwed to the cylinder and positioned inside the cylinder, the lower end of the injection nozzle insertion portion and the valve body having a through hole communicating with the injection nozzle insertion portion of the valve body It is installed to be slidable in the gas passage in the longitudinal direction is provided with a gas filling valve at the lower end and the gas injection hole formed in the gas discharge hole communicating with the gas passage on one side, and is installed between the injection nozzle and the lower surface of the valve body An elastic member for elastically biasing the injection nozzle upward, a packing supported by the valve body to selectively open and close the discharge hole when the injection nozzle is slid, and a nozzle cover coupled to the valve body to support the packing and the injection nozzle do.

The gas filling valve includes a valve seat portion having an annular groove at an end of the injection nozzle, a valve passage portion in which a filling passage communicating with the gas passage is formed, and a tube inserted into and supported by the valve seat portion to block the filling passage. It can be done by. And the gas filling valve is coupled to the lower end of the injection nozzle and the needle to be elastically biased to the end of the end of the gas passage by the spring to open and close the end of the gas passage is provided with a nozzle cap supported by the elastic member It can be done by.

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.

Fillable gas cylinder according to the present invention is that the valve unit for the filling and discharge of the gas to be able to be independently coupled to and detachable from the gas cylinder has been shown an embodiment thereof in Figs.

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 installed in the upper side of the gas cylinder body 12 And a cylinder member 20 extending inwardly, and a valve unit 30 coupled to and separated from the cylinder member 20 by a coupling means.

The gas cylinder body 12 is formed in a cylindrical shape, the bottom portion is formed concave toward the space portion side, the upper side has a structure formed convex. And the upper side of the convex gas cylinder body 12 is provided with a seating plate 13 extending radially about the cylinder member (20). Naturally, the gas cylinder body 12 is not limited to the above embodiment and may be variously modified in diameter, height, and the like.

The cylinder member 20 is welded or screwed to the upper portion of the gas cylinder body 12, and has a structure in which the lower end is closed in a cylindrical shape. An extension tube 21 extending in the radial direction and communicating with the inside of the cylinder member 20 is installed at the outer peripheral surface of the end side of the cylinder member 20. The structure of the cylinder member 20 is not limited thereto, and may be formed in a cylindrical shape having a short length so as to be combined with a valve body to be described later, and may be made of a screw forming portion in which the valve body is screwed.

The valve unit 30 can be coupled and separated by the cylinder member 20 and the coupling means so that the valve unit 30 can be easily replaced when the valve unit is damaged. An embodiment thereof is illustrated in FIGS. 2 and 3. .

Referring to the drawings, the valve unit 30 is coupled to the cylinder member 20 by means of a screw coupled to the injection nozzle inserting portion 31 and the lower end is located in the interior of the interior 20 of the cylinder; A valve body 33 having a through hole 32 in communication with the injection nozzle insert 31 is provided. The upper part of the valve body 33 and the injection nozzle insert 31 are formed with a relatively large diameter, so that stepped portions 33a and 33b are formed on inner and outer sides thereof. A plurality of seals 34 and 35 are provided on the outer circumferential surface of the valve body 33 and the outer stepped portion 33a for airtightness with the cylinder member 20. An injection nozzle 40 is slidably installed in the injection nozzle insert 31 of the valve body 33, and an elastic member 36 is disposed between the lower end of the injection nozzle 40 and the lower end of the valve body 33. ) Is installed to elastically bias the injection nozzle 40 upwards. The injection nozzle 40 has a gas passage 41 formed in a longitudinal direction, a gas filling valve 50 is provided at a lower end thereof, and a gas discharge hole 42 communicating with the gas passage 41 is formed at an outer circumferential surface thereof. The lower portion of the gas discharge hole 42 preferably forms a step with a relatively large diameter so that the position of the packing and the gas discharge hole 42 to be operated may be set. A packing 43 is inserted into the step portion 33b of the valve body 33 to selectively open and close the gas discharge hole 42 when the injection nozzle 40 slides through the injection nozzle 40. The valve body 33 is screwed with a nozzle cover 44 for supporting the packing 43 and the injection nozzle 40.

Meanwhile, the gas filling valve 50 installed at the lower end of the injection nozzle 40 has an annular groove 51 at the end of the injection nozzle 40 as shown in FIGS. 2 and 3. The filling passage 52 communicating with the gas passage 41 is inserted into the valve seat portion 53 formed on the outer circumferential surface thereof, the valve seat portion 53, and the end of the filling passage 52 is supported by the groove 51. ), There is provided a tube 54 for blocking. The tube 54 may be made of rubber or silicone rubber having elastic force, and the tube 54 should be able to maintain elasticity according to stretching without having brittleness at low temperatures. The valve seat part 53 may further include an annular guide part 53a and a taper part 53b to facilitate insertion of the tube 54.

4 and 5 show another embodiment of the gas filling valve.

Referring to the drawings, the gas filling valve 60 is coupled to the lower end of the injection nozzle 40 to elastically end to the end of the gas passage by the spring 61 to open and close the end of the gas passage 41. The needle 62 is biased and includes a nozzle cap 63 supported by the elastic member 36. The gas filling valve 60 is not limited to the above-described embodiment and may be any structure as long as the gas filling valve 60 can introduce a liquid or gaseous gas into the inside of the gas cylinder.

The operation of the fillable gas cylinder 10 according to the present invention configured as described above is as follows.

In order to discharge the gas filled in the rechargeable gas cylinder 10 of the present invention configured as described above, when the injection nozzle 40 is pressed, the gas discharge hole 42 blocked by the packing 43 is moved downward, and the valve It is discharged to the outside through the through hole 32 formed in the main body 33, the injection nozzle inserting portion 31, the gas discharge hole 42 and the gas passage 41. When the discharge of the gas is completed and the pressing force for pressing the injection nozzle 40 is removed, the injection nozzle 40 is moved upward by the elastic force of the elastic member 36 and the gas discharge hole 42 is packed ( By being in close contact with the inner circumferential surface of 43), the release of gas is blocked.

In order to fill gas into the gas cylinder, a filling gas pressure is applied to the gas passage 41 and the filling passage 52 of the injection nozzle 40 from a separate filling device (not shown), and the gas pressure is the gas. The tube 54 surrounding the valve seat portion 53 of the filling valve 50 is expanded while being filled into the gas cylinder. Then, when the filling pressure is removed from the filling device, the tube 54 blocks the filling passage 52 by the elastic force of the tube 54. Here, the gas filling valve 60 is coupled to the injection nozzle as shown in FIGS. 4 and 5, and a needle 62 for blocking the gas passage 41 and a spring for biasing it to the nozzle hole 41. When the nozzle cap 63 is supported, the needle 62 which is blocking the lower nozzle hole 41 of the injection nozzle 40 by the filling gas pressure is opened to overcome the force of the spring 63 to open the nozzle cap ( It is filled with the gas cylinder through the filling hole 52 formed in the side of 63.

The filling gas cylinder as described above can couple and separate the valve body 33 with respect to the cylinder member 20, so that the operation of the valve unit 30 is prevented due to breakage or failure of the packing, the spring, the injection nozzle, etc., which constitute the valve. If not possible, the valve unit 30 can be removed from the cylinder and replaced with a new one. Therefore, it is possible to fundamentally prevent the gas cylinder from being used due to a defective valve unit as in the prior art.

As described above, the rechargeable gas cylinder according to the present invention can be manufactured by separately separating the valve unit and the gas cylinder, and the maintenance of failure caused by the valve unit is easy, thereby reducing the failure rate caused by the production of the gas cylinder. In addition, if the gas cylinder is made of stainless steel, it can be used semi-permanently while replacing the valve.

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 gas cylinder body having a space part filled with gas therein; A cylinder member installed in the main body and extending to a space part filled with the gas; And a valve unit coupled to and detached from the cylinder member by a coupling means. The method of claim 1, The valve unit The valve body is screwed to the cylinder member and positioned inside the cylinder, the valve body having a lower end portion of the injection nozzle insertion portion and a through hole communicating therewith, and slidably installed in the injection nozzle insertion portion of the valve body and being longitudinally oriented. A gas passage is formed, a gas filling valve is provided at a lower end thereof, and an injection nozzle having a gas discharge hole communicating with the gas passage at one side thereof is installed between the injection nozzle and the lower surface of the valve body to elastically bias the injection nozzle upward. And a valve unit having an elastic member, a packing supported by the valve body to selectively open and close the gas discharge hole when the injection nozzle is slid, and a nozzle cover coupled to the valve body to support the packing and the injection nozzle. Fillable gas cylinder characterized in that. The method of claim 1, The gas filling valve includes a valve seat portion having an annular groove at an end of the injection nozzle, a filling passage communicating with the gas passage on an outer circumferential surface thereof, and a tube inserted into the valve seat to block the filling passage. Fillable gas cylinder characterized in that. The method of claim 1, The gas filling valve is It is coupled to the lower end of the injection nozzle is filled with a needle that is elastically biased to the gas passage end side by a spring to open and close the end of the gas passage is provided with a nozzle cap supported by the elastic member cell.