KR100508383B1 - Safety Valve Equipment for LPG Keeping Cask - Google Patents

Abstract

The present invention relates to a safety valve device for an LPG container in which the gas is automatically shut off when the valve itself is opened independently without a normal connection with the gas using mechanism.

The present invention has an upper tube 10 and a lower tube 20 centered around the gas outlet 21 through which gas is introduced and ejected, and the gas passing through the gas outlet is a gas storage container 94. In the valve of the LPG container including a gas ejection pipe (30) to guide the outside of the; A plurality of locking projections along a circumferential surface having a fixing member 60 for fixing the circumferential surface of the body spaced apart from the gas ejection opening to the inner surface of the lower tube and the gas outlet blocking packing 42 at an upper end thereof. A hole blocking member 40 having a structure protruding from the 43, and a hole blocking member support spring 55 for supporting upper and lower ends of the hole blocking member and the bottom of the hole blocking member and the fixing member; It comprises a push spring 50 is installed between the lower peripheral edge of the gas outlet and the locking projection of the hole blocking member.

Description

Safety Valve Equipment for LPG Keeping Cask

The present invention relates to a valve device of the LPG container, and more particularly, to a safety valve device of the LPG container to automatically eject the gas when the normal connection with the gas using mechanism is not made.

In general, liquefied petroleum gas (LPG) is a highly flammable material and has a high risk of explosion. Therefore, LPG containers provided for the use of LPG as fuel always require careful attention to its handling and installation, as well as strict confidentiality tests. It is regulated to be placed only in approved containers.

In addition, when excessive gas is blown out due to an abnormality in the hose connection between the valve of the LPG container and the gas using mechanism or damage to the connection hose, the valve is automatically shut off to further blow off the gas. LPG vessels have been provided to prevent this.

These LPG containers have a variety of sizes to suit the place of use, such as home use, commercial use, and all LPG containers are provided to be transported by vehicle or in various other ways. Accordingly, there is a concern that gas may be released due to a valve misoperation in the process of transporting the LPG container. As a result, the LPG container may be misused for unstable purposes.

That is, the conventional LPG container has a structure in which gas is ejected by rotating the handle of the valve installed on the upper end of the container to the open side, it was possible to burn even if only the LPG container itself. For this reason, some users often burn in an unstable state in which LPG containers are not properly connected to gas appliances, which is highly likely to cause explosions and damages to people and property, requiring proactive measures. Was.

In addition, the gas stored in the LPG container was highly flammable and freely discharged only by opening the valve, which led to protesters' use of force demonstrations or, in severe cases, explosives. .

The present invention has been made to solve the above problems, to provide a safety valve device of the LPG container is configured to automatically shut off the gas when the gas mechanism using LPG as a fuel is not normally connected. There is this.

In addition, there is another object to provide a safety valve device of the LPG container to prevent the LPG container from being used in addition to the normal use.

In order to achieve the above object, the present invention, the upper part having a stem member for blocking the gas outlet and the handle for its operation and the lower tube coupled to the gas storage container centered on the gas outlet through which the gas is introduced and ejected In the valve of the LPG container having a gas injection pipe for guiding the gas passing through the gas outlet port to the outside of the gas storage container; The fixing member for fixing the circumferential surface of the body spaced apart from the gas outlet by a predetermined distance to the inner surface of the lower tube, and a structure in which a plurality of catching protrusions protrude along the circumferential surface having the gas outlet blocking packing on the upper end. Between the hole blocking member provided above the fixing member, the bottom of the hole blocking member and the hole blocking member supporting spring for supporting the upper and lower ends of the hole blocking member, the lower periphery of the gas outlet and the locking projection of the hole blocking member. A push spring installed; When the valve is opened due to the rise of the stem member in the state in which the gas ejection pipe is opened to the atmosphere, the hole blocking member is formed by the pressure difference due to the high internal pressure of the lower pipe and the gas ejection port and the low internal pressure of the gas ejection port. It is characterized in that it is configured to rise to the blocking position of the gas ejection port while winning the elastic force of the pressing spring.

Here, the fixing member may be configured such that a through hole for maintaining a diameter of which the upper side is enlarged in the center thereof is formed so that a locking step for supporting the lower end of the hole blocking pin support spring is formed thereon.

In addition, the stem member has an insertion hole extending vertically from the bottom, the push bar forming a head of the diameter of the upper portion is inserted into the insertion hole, the horizontal long hole so that the safety pin for suppressing the rise of the push bar is fitted It is desirable to form the structure perforated to communicate with the top of the insertion hole.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a valve device and a gas induction hose device coupled to the LPG container according to the present invention, Figure 2 is a cross-sectional view showing a valve device of the LPG container in Figure 1, Figure 3 is a valve according to Figure 2 It is a perspective view showing the main structure of the device. 4 and 5 are operating state diagrams showing an operation process of the valve device according to FIGS. 1 to 3.

As shown, the gas container valve 1 of the present invention is divided into an upper tube 10 and a lower tube 20 around the gas outlet 21 through which gas is introduced and discharged, and the upper tube ( 10) and a gas discharge pipe 30 extending horizontally between the lower pipe 20 is configured.

The upper tube 10 has a spiral groove (10a) is formed on the upper inner surface, the valve operating handle 11 is screwed to the bottom of the spiral groove (10a) on the upper end of the upper tube (10). It is installed. In addition, a stem member 14 for inserting the gas outlet 21 is inserted into the upper tube 10.

The stem member 14 has a packing 14a in close contact with the outer periphery of the gas outlet 21 at its lower end, and the stem member 14 is connected through the handle 11 and the spindle 13. Is installed in the structure. That is, the spindle 13 is screwed to the inner surface of the upper tube 10 while the upper portion is fixed to the handle 11, the upper end of the stem member 14 is coupled to the lower portion of the spindle (13). . At this time, the insertion groove 18 is formed along the circumferential surface of the stem member 14 to ensure stable airtightness between the stem member 14 and the inner surface of the upper tube 10, and the insertion groove ( Fit the O-ring (19) on 18). In addition, the spindle 13 may be fixed to the bolt 12 to the handle 11, and may be fixed through other configurations.

The handle 11, the spindle 13, and the stem member 14, which are installed in this way, are rotated by the handle 11 so that the spindle 13 is in the spiral groove 10a of the inner surface of the lower tube 10. The guide member is moved up and down, and thus the stem member 14 coupled with the spindle 13 is interlocked up and down, and the packing 14a surface is brought into contact with the upper surface of the gas ejection port 21 to perform a blocking function. .

And, the lower tube 20 is formed in the lower outer wall spiral grooves are screwed to the upper end of the gas container 94, the upper end of such a lower tube 10 is the state through the gas outlet 21 Of course. The gas outlet 21 is opened when the stem member 14 of the upper tube 10 is raised to communicate with the inside of the upper tube 10 and the inside of the gas discharge tube 30 to be described later.

In addition, the inside of the lower pipe 20, the pressing spring 50 for holding the upper end on the lower periphery of the gas outlet 21 and the press spring 50 is installed so as to be able to lift and lower the body held on the press spring (50). A hole blocking member 40, a hole blocking pin support spring 60 for supporting the hole blocking pin 40, and a fixing member 60 for supporting a lower end of the hole blocking pin support spring are provided.

The hole blocking member 40 is provided with a packing 42 for selectively blocking the above-described gas outlet 21 at the top, a plurality of engaging projections 43 on the circumferential surface of the hole blocking member 40 The tip of the locking projection 43 is in contact with the inner wall of the lower tube (20). Then, the gas is smoothly ejected through the engaging projections 43.

The pressing spring 50 is coalesced between the locking projection 43 of the hole blocking member and the lower periphery of the gas ejection opening 21, such a pressing spring 50 is the hole blocking member 40. The elastic force is provided to space the packing 42 at a predetermined distance from the gas outlet 21.

The fixing member 60 is installed to maintain a predetermined interval in the lower portion of the hole blocking member 40, the circumferential surface is fixed to the inner surface of the lower tube (20). At this time, the fixing member 60 may be configured to be fixed by screwing the inner surface of the lower tube (20). In addition, while drilling the through-hole 61 for gas blowing in the center of the fixing member 60, the through-hole 61 is configured to maintain the diameter of the upper portion, the upper portion of the fixing member 60 It is preferable that the locking jaw portion 61a for inserting and supporting the hole blocking member support spring 55 to be described later formed therein.

In addition, the hole blocking member support spring 55 is installed to support both upper and lower ends between the bottom of the hole blocking member 40 and the locking jaw portion 61a above the through hole 61. The hole blocking member support spring 55 applies a predetermined elastic force to prevent the hole blocking member 40 from falling downward of the lower tube 20. At this time, the hole blocking member support spring 55 maintains a smaller elastic force than the above-described push spring 50, which is the hole blocking member 40 is downward by the push spring (50) This is to maintain the open state of (21).

In addition, the gas ejection pipe 30 installed to pass through the gas ejection opening 21 and the inner space has a screw groove 30a formed on an inner surface thereof, and one end of the hose device connected to the gas using mechanism is the screw groove. Screwed to 30a is inserted into the gas ejection pipe 30 is installed. The hose device is a gas pressure regulator 91 coupled to the injection valve 90, the injection valve 90 screwed to the gas injection pipe 30, the diaphragm 92 is installed, the gas injection pipe ( 21) and the injection valve 90 and the gas pressure regulator (91) is made to include a connecting hose (93) or a connecting pipe for inducing gas to the inside thereof.

In addition, reference numeral 70 is a safety valve, which is installed to remove the excess pressure when the pressure in the gas container 94 exceeds the set pressure. Such a safety valve 70 may be a configuration of a safety valve installed in a conventional gas container.

The operation of the gas container valve apparatus according to the present invention configured as described above will be described.

First, as shown in FIG. 2, when the handle 11 of the valve adjusting tube 10 is rotated in the locking direction, the spindle 13 fixed to the handle 11 and the stem member 14 coupled thereto are The stem member 14 is interlocked and downward, and the stem member 14 blocks the gas outlet 21 while keeping the packing 14a at the bottom thereof in close contact with the upper peripheral edge of the gas outlet 21.

As the gas outlet 21 is blocked in this way, the gas flowing into the lower tube 20 from the LPG container does not pass through the gas outlet 21 while filling the inside of the lower tube 20 and the gas outlet 21. In this case, the internal pressures of the gas outlet 21 and the lower pipe 20, that is, P1 and P2 may be maintained in the same or similar state.

Accordingly, the hole blocking member 40 installed in the lower pipe 20 has a body position spaced apart from the lower periphery of the gas outlet 21 by a packing 42 by the elastic force of the pressing spring 50. Done. In addition, since the pressing spring 50 receives the internal pressure of the gas container 94 in which gas is compressed and stored upward, the pressing spring 50 is pressed toward the gas outlet 21 by a predetermined height, thereby the hole blocking member 40. ) Keeps the packing 42 slightly spaced apart from the lower periphery of the gas outlet 21. That is, the hole blocking member 40 is maintained in a state in which the upper portion of the hemispherical packing 42 blocks a portion of the lower side of the gas outlet 21.

As described above, when the handle 11 of the upper tube 10 is slightly rotated by about one rotation or two rotations while the upper side of the gas outlet 21 is blocked, the handle 11 is shown in FIG. 4. The spindle 13 and the stem member 14, which are associated with each other, rise slightly, and the gas outlet 21 whose upper side is blocked by the packing 14a of the stem member 14 is opened in a small scale. Will be maintained.

As such, when the gas outlet 21 is opened, the gas filled in the lower pipe 20 is introduced into the gas discharge pipe 30 through the opening gap of the gas outlet 21, and at this time, the gas discharge pipe 20 ), The injection valve 90 and the gas pressure regulator 91 are sequentially coupled, so that the gas flowing into the gas discharge pipe 30 acts as a diaphragm 92 installed inside the gas pressure regulator 91. By doing so, the large amount is not quickly discharged to temporarily stay in the interior of the gas discharge pipe 30 is maintained continuously in the operation of discharging only the appropriate amount.

Accordingly, when the gas outlet 21 is opened, gas inside the gas outlet 21 and the inside of the gas outlet 21 are instantaneously introduced into the gas outlet tube 30. Internal pressure and internal pressure of the gas discharge pipe 30 are maintained at the same or similar state. That is, the pressure of P3 is equal to or similar to the pressures of P1 and P2, which means that the internal pressures of P1 and P2 are instantaneously lowered, so that the pressing spring 50 that is regulated by the pressures of P1 and P2 is reduced. The longer it is, the longer the hole blocking member 40 is downward, thereby maintaining the gas outlet 21 completely open.

Then, while the gas of the gas container 94 is smoothly discharged through the open gas outlet 21, it is guided to the hose device connected to the gas using mechanism is supplied to the gas using mechanism.

On the other hand, as described above, by combining the hose device consisting of the injection valve 90, the gas pressure regulator 91, the connecting hose 93 to the gas discharge pipe 30, the gas discharge pipe ( When abnormal gas is used, such as attempting combustion while directly discharging the gas flowing into the outside 30, the lower portion of the gas outlet 21 may be blocked by the hole blocking member 40, thereby automatically stopping the gas. Will be.

That is, as shown in FIG. 5, the gas outlet 21 is operated by operating the handle 11 of the upper pipe 10 in a state in which the hose device for connecting the gas using mechanism is not coupled to the valve device 1 of the present invention. When the open), the gas passing through the gas outlet 21 is discharged to the gas discharge pipe 30 and is quickly discharged to the outside. In other words, the gas discharge pipe 30 is a state through the internal space directly through the outside and its internal pressure is maintained at the same level as the atmospheric pressure, which is a large difference from the internal pressure of the gas container 94 including the gas outlet 21 Means to show.

Therefore, when the gas ejection opening 21 is opened, the storage gas which maintains the high pressure of the gas container 94 passes through the open gas ejection opening 21 to the gas discharge pipe 30 in a low pressure state. To be discharged. At this time, the high-pressure gas passing through the gas outlet 21 is strongly pressed to the hole blocking member 40, the hole blocking member 40 in the process to overcome the elastic force of the pressing spring (50) Ascending, the packing 42 of the upper end blocks the lower part of the gas outlet 21.

In addition, the hole blocking member 40 which is raised in this way has the gas ejection opening whose body is suppressed downward by a pressure difference between the inner side of the gas discharge pipe 30 maintaining the atmospheric pressure and the lower pipe 20 maintaining the high pressure. Since the state 21 is continuously blocked, no further gas discharge occurs through the gas discharge pipe 30. That is, it will have a safety function that can always use the storage gas of the gas container 94 only in a normal state.

In addition, during the gastight test of the gas container 94, the stem member 14 of the lower tube 10 is prevented from automatically blocking the gas outlet 21 at the same time as the hole blocking member 40 rises as described above. It is preferable that the configuration is provided with a push bar 17 to suppress the rise of the hole blocking member 40.

That is, the stem member 14 has an insertion hole 16 extending vertically from the bottom, and the push bar 17 is fitted into the insertion hole 16, the push bar 17 is the upper portion thereof. Has a head portion 17a having an enlarged diameter, and the lower portion of the push bar 17 passes through the insertion hole 16 and flows into the gas outlet 21 and the lower pipe 20 to block the hole blocking member. A state in which it is adjacent to the packing 42 of the 40 is maintained. At this time, the spring 17b is installed between the head portion 17a of the push bar 17 and the packing 14a at the bottom of the stem member 14, so that the push bar 17 has a more stable installation state. It would be desirable to maintain.

And, the upper portion of the stem member 14 is drilled so that the horizontal long hole 15 of a predetermined length communicates with the insertion hole 16, such a horizontal long hole 15, the safety pin is fitted in the upper tube 10 It is comprised so that it may mutually communicate with the through-hole 10b. Accordingly, the safety pin 80 is inserted through the through hole 10b and the horizontal long hole 15 in order, so that the head 17a of the push bar 17 is pressed while being restricted by the safety pin 80. The rise of the bar 17 is suppressed, and when the safety pin 80 is removed, the push bar 17 can be raised and lowered by a predetermined height along the insertion hole 16 and the horizontal long hole 15. .

Thus, by placing the push bar 17 and the safety pin 80 on the stem member 14, as shown in Figure 4, the through-hole (10b) and the horizontal long hole (15) during the airtight test of the gas container 94 The safety pins 80 are inserted to sequentially pass through the pins, and the safety pins 80 are caught by the inner surface of the through-hole 10b, so the vertical movement is suppressed. It is suppressed that it raises to the height more than the safety pin 80 by the stopper function.

Accordingly, even if the air pressure acts upward on the hole blocking member 40 during the air injection and discharge into the gas container 94 according to the airtight test, the push bar 17 whose rise is suppressed by the safety pin 80 is applied. Since the lower end is in contact with the packing 42 of the hole blocking member 40, the hole blocking member 40 does not rise. That is, the shut-off function of the gas outlet 21 due to the rise of the hole blocking member 40 is selectively stopped, so that the airtight test can be stably performed.

After the removal of the safety pin 80, the push bar 17 maintains a state capable of moving upward along the insertion hole 16 and the horizontal long hole 15. When the gas outlet 21 is automatically shut off, the push bar 17 is raised while being raised so that the operation is not disturbed at all.

As can be seen by the above embodiments, since the valve is automatically shut off when the gas container is not opened under normal conditions by the safety valve device of the LPG container according to the present invention, the gas container is used for demonstration. In addition, the youth can be actively prevented from being used for unfavorable purposes such as inhaling gas.

In addition, when the valve is inadvertently opened during the transportation of the gas container or during the dismantling and re-installation, the explosion of the gas container may be prevented due to a fault as the valve is automatically shut off. It has the effect of providing psychological stability to the user while preventing human and property damage from accidents.

1 is a cross-sectional view showing a valve device of the LPG container according to the present invention and a gas induction hose device coupled thereto

Figure 2 is a cross-sectional view showing the valve device of the LPG container in Figure 1

3 is a perspective view showing the main structure of the valve device according to FIG.

4 and 5 is an operating state showing the operation of the valve device according to Figures 1 to 3

<Explanation of symbols for main parts of drawing>

DESCRIPTION OF SYMBOLS 1: Valve 10: Upper pipe 10a, 30a: Spiral groove 10b: Through hole 11: Handle 12: Fixing bolt 13: Spindle 14: Stem member 14a, 42: Packing 15: Horizontal long hole 16: Insertion hole 17: Push bar 17a: Head 17b: Spring 18: Insertion groove 19: O-ring 20: Lower pipe 21: Gas outlet 30: Gas discharge pipe 40: Hole blocking member 43: Engaging protrusion 50: Push spring 55: Hole blocking member Supporting spring 60: Fixing member 61: Through hole 61a: Locking jaw 70: Safety valve 80: Safety pin 90: Injection valve 91: Gas pressure regulator 92: Diaphragm 93: Connection hose 94: Gas container

Claims (3)

It has a stem member for blocking the gas outlet and the upper tube having a handle for its operation, and a lower tube coupled to the gas storage container centered around the gas outlet through which the gas flows in and out, and passes the gas passing through the gas outlet. In the valve of the LPG container including a gas discharge pipe to guide the outside of the storage container; The fixing member for fixing the circumferential surface of the body spaced apart from the gas outlet by a predetermined distance to the inner surface of the lower tube, and a structure in which a plurality of catching protrusions protrude along the circumferential surface having the gas outlet blocking packing on the upper end. Between the hole blocking member provided above the fixing member, the bottom of the hole blocking member and the hole blocking member supporting spring for supporting the upper and lower ends of the hole blocking member, the lower periphery of the gas outlet and the locking projection of the hole blocking member. A push spring installed; When the valve is opened due to the rise of the stem member while the gas discharge pipe is open to the atmosphere, the hole blocking member is pressed by the pressure difference due to the high internal pressure of the lower pipe and the gas outlet and the low internal pressure of the gas outlet. LPG container safety valve device characterized in that configured to ascend to the blocking position of the gas ejection outlet while winning the elastic force of the spring. The method of claim 1, The fixing member, The through-hole is maintained in the center to maintain the enlarged diameter is drilled, the safety valve device of the LPG container, characterized in that the locking jaw portion for forming the lower end of the hole blocking pin support spring is formed on the upper portion. The method of claim 1, The stem member for blocking the upper portion of the gas outlet, It has an insertion hole extending vertically from the bottom, the push bar forming the head of the diameter of the upper portion is inserted into the insertion hole, so that the horizontal long hole communicates with the upper end of the insertion hole so that the safety pin for restraining the push bar is fitted. Safety valve device for LPG container, characterized in that made of a perforated structure.