KR200363797Y1 - valve unite and gas thank for charge utilizing the same - Google Patents

Abstract

According to the present invention, the fillable gas cylinder includes a cylindrical gas cylinder body; A cap coupled to an upper side of the gas body to seal an upper side of the main body; A valve housing having a first packing member supported by the cap and a hollow supported by the cap to join the packing and communicating with the inside of the main body, and slidably installed in the hollow of the valve housing and having a predetermined depth from an upper end thereof. A nozzle portion having a first passage formed therein and having a first passage and a first valve passage formed on an outer circumferential surface thereof, extending from the nozzle portion, and having a second passage of a predetermined length formed therein and communicating with the second passage on an outer circumferential surface thereof; A valve main body having a cylinder portion having second and third valve passages spaced in a direction, elastic means installed in the valve housing to elastically bias upward of the valve main body, and at a lower side of the second and third valve passages; A second packing installed on the inner circumferential surface of the valve housing corresponding to the third valve passage being positioned to selectively open and close the third through hole when the valve body is elevated; A valve unit comprising a member; And an end cap coupled to a lower portion of the gas cylinder body to seal a lower portion of the body.

Description

Valve unit and gas thank for charge utilizing the same}

The present invention relates to a small gas cylinder for supplying gas mounted on a portable gas burner, and more particularly, to a valve unit for filling and discharging gas and a fillable gas cylinder using the same.

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. The discarded gas canisters 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 the Republic of Korea Utility Model Registration No. 20-0266354, the metal valve housing is fixed to the coupling hole of the upper body formed with the mount cup, the valve member is inserted into the metal valve housing, and then the locking part is formed by pressing the lower part of the detachable part of the valve member. 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.

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.

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 increase the reliability of the operation.

Another object of the present invention is to provide a valve unit that doubles the passage when filling and discharging gas.

1 is a partial ablation perspective 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 views of the valve unit shown in FIG.

5 is an exploded perspective view showing another embodiment of the valve unit according to the present invention;

6 and 7 are cross-sectional views of the valve unit shown in FIG.

8 is a sectional view showing yet another embodiment of the valve unit.

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

10; Rechargeable Gas Cylinder

20; Valve unit

21; First packing member

22; Valve housing

23; Valve body

25; Cylinder

27; 2nd packing member

28; spring

In order to achieve the above object, the valve unit of the rechargeable gas cylinder of the present invention is

A first packing member on which a cap coupled to the gas cylinder body is supported;

A valve housing supported by the cap to join the packing and having a hollow;

A nozzle unit slidably installed in the hollow of the valve housing and having a first passage formed at a predetermined depth from an upper end thereof, and having a first valve passage communicating with the first passage on an outer circumferential surface thereof, and extending from the nozzle unit and having a predetermined length therein; A valve body having a cylinder portion having a second passage formed therein and communicating with the second passage on an outer circumferential surface thereof and having second and third valve passages spaced apart from each other in the longitudinal direction;

Elastic means installed in the valve housing to elastically bias the valve body upward;

And a second packing member installed on the inner circumferential surface of the valve housing corresponding to the third valve passage located on the lower side of the second and third valve passages to selectively open and close the third through hole when the valve body is elevated. It features.

In the present invention, at least one sealing member for airtightness is further provided between the inner circumferential surface of the cap and the outer circumferential surface of the cylinder housing. Can be installed between the inner surface of the.

Fillable gas cylinder to achieve the above object

A cylindrical gas cylinder body;

A cap coupled to an upper side of the gas cylinder body to seal an upper side of the main body;

A first packing member supported by the cap coupled to the gas cylinder body, the valve housing supported by the cap to join the packing, and having a hollow, and slidably installed in the hollow of the valve housing and formed to a predetermined depth from an upper end thereof. A nozzle portion having a first passage and having a first valve passage formed on the outer circumferential surface and communicating with the first passage; a second passage having a predetermined length formed therein extending from the nozzle portion and communicating with the second passage on the outer circumferential surface thereof; A valve body having a cylinder portion having second and third valve passages spaced apart from each other in the longitudinal direction, an elastic means installed in the valve housing to elastically bias the valve body upward, and a lower portion of the second and third valve passages; Installed on the inner circumferential surface of the valve housing corresponding to the third valve passage located on the side to selectively open and close the third through hole when the valve body And a second valve unit provided with a second packing member;

It is characterized in that it comprises a; end cap coupled to the lower portion of the gas cylinder body to seal the lower portion of the body.

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.

1 to 4 illustrate one embodiment of a gas cylinder equipped with a valve unit for filling and discharging gas according to the present invention.

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. The valve unit 20 installed in the cap 13 to be filled and discharged with the gas stored in the gas cylinder body 12 and the lower end of the gas cylinder body 12 to seal the gas cylinder body 12. End cap 14.

The gas cylinder body 12 may be formed of a cylindrical member formed by bending a plate-shaped member in a cylindrical shape and a corresponding end welded thereto, or may be formed by cutting a tube having a hollow part. The shape of the gas cylinder body is not limited to the above-described embodiment and may be variously modified in diameter, height, 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 4, which is supported in the cylindrical mounting portion (13a) of the cap 13 A first packing member 21 and a valve housing 22 supported by the cap 13 to join the packing and having a hollow 22a are provided. A lower portion of the valve housing 22 extends radially in the induction pipe 22b to allow the hollow 22a to communicate with the inside of the gas cylinder.

In addition, the valve body 23 is slidably installed in the first packing member 21 having the hollow 22 and the through hole 21a of the valve housing 22. The valve body 23 is slidably installed with respect to the first packing member 21 and has a first passage 24a formed at a predetermined depth from an upper end thereof. The valve body 23 is selectively opened and closed by the first packing member 21. And a nozzle portion 24 having a first passage 24a and a first valve passage 24b, and extending from the nozzle portion 24 and having a predetermined length of a second passage 25a formed therein, And a cylinder portion 25 in communication with the second passage 25a and having second and third valve passages 25b and 25c spaced in the longitudinal direction thereof. Here, the second passage 25a formed in the cylinder portion 25 may be formed by forming a predetermined length from the lower end of the cylinder portion 25 and inserting and closing the plug 26 at the inlet side thereof. A plurality of first and third valve passages 24b and 25b may be formed on the same circumference.

The third valve passage 25c is installed on the inner circumferential surface of the valve housing 22 corresponding to the third valve passage 25c positioned on the lower side of the second and third valve passages 25b and 25c. The second packing member 27 for selectively opening and closing the lifting 23 of the 23 is provided. Here, the second packing member 27 may be positioned below the second valve passage 25c as shown in FIGS. 5 and 7. In this case, gas flow control to the third valve passage 25c is easy.

An elastic means for elastically biasing the valve body 23 is installed between the bottom portion of the valve housing 22 and the lower portion of the valve body 23, that is, the lower portion of the cylinder portion 25. The means consists of a coil spring 28.

At least one sealing member 30 is further provided between the inner circumferential surface of the cap 13 and the outer circumferential surface of the cylinder housing 22 to maintain airtight therebetween.

On the other hand, Figure 8 shows another embodiment of the valve unit according to the present invention. Referring to the drawings, the third and fourth packing members spaced a predetermined distance between the outer circumferential surface of the cylinder portion 25 on the lower side of the third valve passage 25 formed in the cylinder portion 25 and the inner circumferential surface of the valve housing 22. 41 and 42 may be installed, and through holes 43 may be formed in the valve housing 22 therebetween.

Referring to the operation of the fillable gas cylinder 20 according to the present invention configured as described above are as follows.

The nozzle unit 24 is pressed to discharge the gas filled in the fillable gas cylinder 10. In this way, the first valve passage 24b blocked by the first packing member 21 is exposed to the gap between the hollow 22a of the valve housing 22 and the valve body 23, and is shown in FIG. As shown, the third valve passage 25b blocked by the second packing member 27 communicates with the hollow 22a of the valve housing 22 which communicates with the gas cylinder body 12 by the induction pipe 22b. do.

Accordingly, the liquid gas inside the gas cylinder body 12 is vaporized to form the lower side of the induction pipe 22a and the hollow 22a of the valve housing 22, the third valve passage 25b, the second passage 25a, The gap between the second valve passage 25a and the inner circumferential surface of the valve housing 22 and the cylinder portion 25 and the first valve passage 24b and the first passage are discharged to the outside.

In the above-described process, the first packing member 21 may be slightly shaken to leak airtightness, but at least one sealing member may be disposed between the outer circumferential surface of the valve housing 22 and the cylindrical mounting portion 13a of the cap 13. Since 30 is installed, it is possible to prevent the gas from leaking outside through the first packing member 21 and the mounting portion 13a of the cap.

When the pressing force acting on the nozzle part is removed, the valve body 23 is raised by the coil spring 28 which is the elastic member, and the first packing member 21 and the second packing member 27 are removed. The third valve passage 25b is blocked by each.

In order to fill the gas cylinder 10 with gas, the injection unit 24 is pressurized from a separate filling device (not shown) and vaporized as in the case of gas discharge, thereby allowing the first passage 24a and the first valve passage 24b to be filled. , The gap between the inner circumferential surface of the valve housing 22 and the cylinder portion 25, the second valve passage 25a, the second passage 25a, the third valve passage 25b, the hollow 22a and the induction pipe 22a ) 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 chargeable gas cylinder using the same are relatively simple and have a structure because charging and discharging are all made by the elevation of the valve body 23 relative to the valve housing 22. The production cost of manufacturing can be reduced. 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.

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 (7)

A first packing member on which a cap coupled to the gas cylinder body is supported; A valve housing supported by the cap to join the packing and having a hollow; A nozzle unit slidably installed in the hollow of the valve housing and having a first passage formed at a predetermined depth from an upper end thereof, and having a first valve passage communicating with the first passage on an outer circumferential surface thereof, and extending from the nozzle unit and having a predetermined length therein; A valve body having a cylinder portion having a second passage formed therein and communicating with the second passage on an outer circumferential surface thereof and having second and third valve passages spaced apart from each other in the longitudinal direction; Elastic means provided between the hollow lower end side of the housing and the valve body to elastically bias the valve body upward; And a second packing member installed on the inner circumferential surface of the valve housing corresponding to the third through hole positioned at the lower side of the second and third valve passages to selectively open and close the third valve passage when the valve body is elevated. A valve unit of a refillable gas cylinder characterized by the above-mentioned. The method of claim 1, And a sealing member is further provided between the inner circumferential surface of the cap and the outer circumferential surface of the cylinder housing for sealing. The method of claim 1, And the second packing member is provided between the valve body on the lower side of the third valve passage and the inner surface of the valve housing. The method of claim 1, A valve unit of a fillable gas cylinder, characterized in that the gas induction pipe for communicating with the inside of the hollow and the gas cylinder in the radial direction at the bottom of the valve housing. Cylindrical gas cylinder body, A cap coupled to an upper side of the gas cylinder body to seal an upper side of the main body; A first packing member supported by a cap coupled to the gas cylinder body, a valve housing supported by the cap to join the packing, and having a hollow, and slidably installed in the hollow of the valve housing, and formed to a predetermined depth from an upper end thereof. A nozzle portion having a first passage and having a first valve passage formed on the outer circumferential surface and communicating with the first passage; a second passage having a predetermined length formed therein extending from the nozzle portion and communicating with the second passage on the outer circumferential surface thereof; A valve body having a cylinder portion having second and third valve passages spaced apart from each other in a longitudinal direction, and an elastic means provided between the hollow lower end side of the housing and the valve body to elastically bias the valve body upward; It is installed on the inner circumferential surface of the valve housing corresponding to the third through hole located on the lower side of the second and third valve passages, thereby A valve unit including a second packing member to open and close selectively when the main body is elevated; And an end cap coupled to the lower portion of the gas cylinder body to seal the lower portion of the gas cylinder body. The method of claim 5, And a sealing member is further provided between the inner circumferential surface of the cap and the outer circumferential surface of the cylinder housing for sealing. The method of claim 5, And the second packing member is provided between the valve body on the lower side of the third through hole and the inner surface of the valve housing.