KR20060099571A - Safty cap for blocking gas supply - Google Patents

Abstract

The present invention provides a safety cap for gas supply blocking. Safety cap for gas supply cutoff of the present invention is a flexible body plate (31); A valve insertion part 32 formed inside the body plate to insert the valve handle of the intermediate valve for gas supply and prevent the valve handle from being rotated; A concave-convex band 34 having a plurality of concave portions and convex portions on at least one surface thereof and coupled to one end of the body plate; A binding part 35 for receiving and fixing the uneven band; And it provides a gas supply blocking safety cap having a sealing portion 39 that can block the hose connection portion 48 of the gas supply intermediate valve. According to the gas supply blocking safety cap according to the present invention, it is not necessary to perform the intermediate valve coupling / disassembly operation and plug coupling / disassembly operation, thus, the time required for the transfer operation of the gas consumer can be significantly shortened and In addition, it is possible to prevent damage to the gas supply line, which may have been a concern for the transfer of gas consumers.

Description

Safety cap for gas supply shutoff {SAFTY CAP FOR BLOCKING GAS SUPPLY}

1 is a view showing a state in which gas leakage prevention and unauthorized use measures are conventionally performed during the gas consumer transfer operation.

2 is a view showing a state in which gas leakage prevention and unauthorized use measures are conventionally performed during the gas consumer transfer operation.

3 is a perspective view of a gas supply blocking safety cap according to a first embodiment of the present invention.

4 is a plan view of a gas supply blocking safety cap according to the first embodiment of the present invention.

Figure 5 is a bottom view of the safety cap for gas supply blocking according to the first embodiment of the present invention.

6 is a schematic view showing a state in which the safety cap for gas supply blocking according to the first embodiment of the present invention is fastened to an intermediate valve for gas supply.

7 is a schematic view showing a state in which the safety cap for gas supply blocking according to the first embodiment of the present invention is installed.

FIG. 8 is a plan view seen from the direction AA ′ of FIG. 7 after the uneven band is completely fastened to the binder.

FIG. 9 is a side view taken along the line BB ′ of FIG. 8.

10 is a perspective view showing a safety cap for gas supply blocking according to a second embodiment of the present invention.

11 is a schematic view showing a state in which the U-shaped valve pressing preventing portion 38 of the safety cap according to the second embodiment is inserted between the valve handle and the valve body.

12 is a side view showing a state in which the U-shaped valve pressing preventing portion 38 of the safety cap according to the second embodiment is inserted into the lower end of the valve handle.

13 is a perspective view showing a safety cap for gas supply blocking according to a third embodiment of the present invention.

14 is a schematic view showing a state in which the U-shaped valve pressing preventing portion 38 of the safety cap according to the third embodiment is inserted between the valve handle and the valve body.

15 is a side view showing a state in which the U-shaped valve pressing preventing portion 38 of the safety cap according to the third embodiment is inserted into the lower end of the valve handle.

<Explanation of symbols for main parts of the drawings>

10: gas supply piping 15: female thread

20: plug 22: head portion

24: Thread 30, 60: Gas supply safety cap

31: body plate 32: valve insert

32a: groove for valve insertion 33: flexible membrane

34: uneven part 34a, 34c: concave part

34b, 34d: convex portion 35: binding portion

35a: through hole 36: protrusion

37: sealing part 37a: groove

37b: Plug 37c: Connection

38: valve pressing prevention part

The present invention relates to a safety cap for gas supply shut-off, and more particularly, it is safely and simply coupled to an intermediate valve without the need to perform the dismantling and plug-in operation of the gas supply intermediate valve that occurs during the transfer of the gas consumer. The present invention relates to a safety cap for gas supply blocking, which can close the supply blocking work.

Propane gas, liquefied natural gas, etc. used for home or industrial use has the risk of having a strong explosive force, so gas-using products and facilities must be safely managed at all times. Therefore, gas users need to be aware of the safe use of gas products and facilities.

In particular, during the transfer of the gas consumer, measures must be taken to prevent the leakage of gas from the gas supply pipe and to prevent unauthorized use of the gas. Normally, when the gas receiver is transferred, the gas leakage prevention and unauthorized use measures are performed by disconnecting the intermediate valve from the gas supply pipe and engaging the plug.

1 and 2 is a view showing a state in which gas leakage prevention and unauthorized use prevention measures are conventionally performed during the gas consumer transfer operation.

The city gas supplied from the city gas supplier enters the consumer through the gas supply pipe 10, and the gas user mediates safety valves and hoses, called intermediate valves, to gas-use products such as stoves, gas boilers, and gas stoves. Gas may be supplied by connecting the gas supply pipe 10 to the furnace. In the case of the transfer of the gas consumer, first the supply valve installed on the gas meter side and the intermediate valve inside the container are closed, and then the hose connected to the gas consuming products such as the gas stove, the gas boiler and the gas stove is removed from the intermediate valve.

Subsequently, the intermediate valve is separated from the gas supply pipe 10 using a work tool such as a wrench, and the female thread 15 in the gas supply pipe 10 is inserted into the plug 20 having the thread 24 as shown in FIG. 1. Put it in. 2 shows a combined state.

Such gas leakage prevention and unauthorized use prevention measures are mainly aimed at preventing the risk of explosion due to unsafe use during unauthorized use of the consumer, rather than preventing gas leakage.

However, in the case of performing the conventional gas leakage prevention and unauthorized use prevention measures, the operation includes the operation of separating the intermediate valve from the gas supply pipe in the transfer operation, and re-engage the plug, in the transfer operation Dismantling and including the operation of coupling the intermediate valve, there is a disadvantage in that it takes at least 10 to 20 minutes of working time during the transfer operation and transfer operation. In addition, due to excessive removal of the intermediate valve or dismantling of the plug, there is a problem that the damage of the gas supply pipe occurs frequently, and there is a concern that a dispute over ownership of the intermediate valve may occur.

Therefore, the present inventors do not need to remove the intermediate valve or dismantle the plug in place of the plug used in the conventional gas leakage prevention and unauthorized use prevention measures, and the time required for the gas acceptor transfer service can be drastically shortened. I found a way.

The present invention has been made in order to solve the above-mentioned prior art and various problems associated therewith, and an object of the present invention is to prevent gas leakage and prevent unauthorized use without the need for performing intermediate valve coupling / disassembly and plug / dismount operations. The present invention provides a safety cap for blocking gas supply that can be performed.

Another object of the present invention is to provide a safety cap for the gas supply cutoff that can significantly shorten the time required for the transfer operation of the gas consumer.

Still another object of the present invention is to provide a safety cap for gas supply cutoff, which can prevent the breakage of the gas supply pipe that has been concerned with the transfer operation of the gas consumer.

The present invention was created to achieve the above object,

Flexible body plate 31;

A valve insertion part 32 formed inside the body plate to insert the valve handle of the intermediate valve for gas supply and prevent the valve handle from being rotated;

A concave-convex band 34 having a plurality of concave portions and convex portions on at least one surface thereof and coupled to one end of the body plate;

A binding part 35 for receiving and fixing the uneven band; And

Provided is a gas supply blocking safety cap having a sealing portion 39 that can block the hose connection portion 48 of the gas supply intermediate valve.

In addition, according to another feature of the present invention, the binding part 35 has a through hole 35a through which the uneven band passes, and at least one or more protrusions which can be inserted into and fixed to the recess of the uneven band. It may have 36.

In addition, according to another feature of the present invention, the sealing portion 37, a stopper (37b) having a groove (37a) that can cover the hose connection portion of the intermediate valve for gas supply; And a connection portion 37c coupled to the body plate 31 at one end of the stopper and capable of bending at least 90 degrees.

And, according to another feature of the present invention, the valve insertion portion 32, the groove (32a) that can be inserted into the valve handle, and bent flexibly when the valve handle is inserted, the valve handle is inserted After the valve handle is fixed, it may be provided with a flexible membrane 33 to prevent rotation.

And, according to another feature of the present invention, the valve pressing preventing portion 38 is attached to the body plate 31, including a U-shaped pin that can be inserted between the valve handle and the intermediate valve body of the gas supply intermediate valve 38 ) May be further provided.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The objects and constructional features of the present invention will become more apparent from the accompanying drawings and the description of the detailed and preferred embodiments of the present invention described below. In addition, it should be noted that the same to similar parts in the drawings are described with the same to similar reference numerals for convenience of description and understanding.

3 is a perspective view of a gas supply blocking safety cap according to a first embodiment of the present invention.

As shown in FIG. 3, the gas supply shutoff safety cap 30 includes a flexible body plate 31, a valve inserting portion 32, an uneven band 34, a binding portion 35, and a sealing portion 39. ). The flexible body plate 31 should be able to be bent upwards or downwards, and should have such properties, so it is preferably made of a flexible material such as plastic or metal. Since the flexible body plate 31 should surround the gas supply intermediate valve, it is necessary to have sufficient flexibility to surround the intermediate valve for gas.

The valve inserting portion 32 is formed inside the body plate 31, and includes a groove 32a having a substantially square shape or similar shape in order to fit the valve handle of the gas supply intermediate valve. The valve inserting portion 32 is inserted into the valve handle of the gas supply intermediate valve, but prevents the valve handle from being rotated.

Here, the groove 32a into which the valve handle can be inserted may have a precise rectangular shape or may have a substantially square shape. The shape of the groove 32a may vary depending on the shape of the flexible film 33 provided around the groove 32a. The flexible membrane 33 provided around the groove 32a flexes flexibly when the valve handle of the intermediate valve is inserted, but after the valve handle is inserted, the valve handle is fixed to prevent the valve handle from rotating.

In FIG. 3, the flexible membrane 33 may be slightly bent when the valve handle of the intermediate valve is inserted while applying a fixing force to fix the intermediate valve. When the flexible membrane 33 is inserted, the flexible membrane 33 surrounds both ends of the valve handle.

The uneven band 34 is a band having uneven portions formed of a plurality of concave portions and convex portions. The uneven band 34 is coupled to one end side of the flexible body plate 31, as shown in FIG.

Concave-convex band 34 is preferably bent in the same direction as the bending direction, for example, the arrow of Figure 3 when the flexible body plate 31 is attached to the intermediate valve.

In addition, the unevenness (凹凸) may be formed only on one surface of the uneven band 34, may be formed on both sides of the uneven band 34. Unevenness (凹凸) is formed on both sides of the uneven band 34 has the advantage that the binding force is enhanced.

The flexible body plate 31 has a fastening portion 35 on the opposite side of the uneven band 34. The binding part 35 accommodates and fixes the uneven band 34. The uneven band 34 is bent and inserted in the same direction as the arrow direction when the flexible body plate 31 is attached to the intermediate valve. It has a through hole 35a. And, the binding portion 35 has at least one or more projections 36 that can be inserted into and fixed to the recessed portion 34a or 34c of the uneven band 34. For example, the binding part 35 shown in FIG. 3 discloses a state in which the projection 36 is formed only on the opposite side of the uneven portion 34 in the through hole 35a for the sake of understanding. Therefore, when the safety cap 30 of FIG. 3 is installed in the intermediate valve, the projection 36 formed on the opposite side of the uneven portion 34 may be inserted into and fixed to the recessed portion 34c of the lower surface side of the uneven portion. In the uneven part 34 of FIG. 3, the uneven parts are formed on both the upper and lower surfaces thereof, but the protrusions 36 are formed only on the opposite side of the uneven part 34 in the through hole 35a of the binding part 35. In this case, unevenness may be formed on the upper surface side of the uneven portion 34.

On the contrary, in the case where the projection 36 is formed on the side close to the uneven portion 34 in the through hole 35a, the protrusion 36 may be inserted into and fixed to the concave portion 34a on the upper surface side of the uneven portion 34, Unevenness may not be formed in the lower surface side.

As shown in the lower left of Figure 3, the gas supply blocking safety cap 30 is provided with a sealing portion 39 that can block the hose connection portion 48 of the gas supply intermediate valve. The sealing part 39 is for covering the hose connection part of the gas supply intermediate valve. Although the sealing part 39 preferably closes the hose connection part of the intermediate valve completely, the safety cap 30 does not maintain gas tightness, but serves to prevent unauthorized use of gas by the user. It does not have to be 100% sealed.

Specifically, covering the hose connection portion of the gas supply intermediate valve is a stopper 37b having a groove 37a that can cover the hose connection portion of the intermediate valve. The groove 37a of the plug 37b is almost the same as the circumference of the hose connection portion of the intermediate valve. However, when provided with elasticity, the groove 37a of the plug 37b may have a circumference that is somewhat smaller than the circumference of the hose connection portion of the intermediate valve.

In addition, one end of the stopper 37b may be provided with a connection part 37c coupled to the body plate 31 and capable of bending at least 90 degrees. Like the body plate 30, the connection portion 37c is preferably made of a flexible material such as plastic or metal plate.

Although the sealing part 36 preferably has a substantially cylindrical shape, it may have a polygonal or spherical shape as needed.

Figure 4 is a plan view of the gas supply blocking safety cap according to the present invention, Figure 5 is a bottom view. In FIGS. 4 and 5, the uneven portion 34 shows the uneven portions on both the upper side and the lower side, but only on the opposite side of the uneven portion 34 in the through hole 35a of the binding portion 35. In the case where the projection 36 is formed, unevenness (34c, 34d) as shown in FIG. 5 should be formed on the lower surface side of the uneven portion 34, but unevenness as shown in FIG. 34; 34a, 34b) may not be formed.

6 is a schematic view showing a state in which the safety cap for gas supply blocking according to the first embodiment of the present invention is fastened to an intermediate valve for gas supply.

The gas supply intermediate valve 40 is divided into an intermediate valve body 44, valve handles 46a and 46b, a valve shaft 45, a pipe connection part 42, and a hose connection part 48. The intermediate valve body 44 and the pipe connecting portion 42 have a shape of approximately hexagonal pillars, and there are also built-in safety devices such as fuse corks. And, the intermediate valve body 44 is provided with a valve shaft 45, when the valve handle (46a, 46b) coupled on the valve shaft 45 is rotated in accordance with the user's movement is opened and closed shaft (not shown) It rotates to open and close the valve. The conventional intermediate valve 40 is manufactured to open and close the valve when the lengths of the valve handles 46a and 46b and the intermediate valve body 44 cross each other in a '서로' shape. The pipe connection part 42 of the intermediate valve body 44 has a shape of an approximately hexagonal pillar having a female thread groove therein, so that it can be rotatably coupled to the gas supply pipe 10 by a tool such as a wrench.

The gas supply blocking safety cap 30 of FIG. 6 is rotated about 90 degrees counterclockwise to the safety cap 30 of FIG. 3. The person who performs gas transfer service first inserts the sealing portion 39 of the safety cap 30 into the hose connection portion 48 of the intermediate valve, and then the body plate 31 and the sealing portion 39 of the safety cap 30 Fold it 90 degrees to each other. Figure 7 is a schematic diagram showing a state in which the safety cap for gas supply blocking is installed in this way.

Next, the flexible body plate 31 is bent to insert the valve handle 46a into the groove 32a of the valve insert 32. Then, the uneven band 34 is bent and wound in the same direction as the body plate 31 is bent, and then passed through the through hole 35a of the binding part 35. At this time, the at least one protrusion 36 provided in the binding unit 35 allows the uneven band 34 to be entered in one direction in which the uneven band 34 is inserted, but the protrusion 36 is uneven in the opposite direction. Is attached in the recess (34a or 34c in FIG. 3) to make it impossible to retract the uneven band 34. FIG. 8 is a plan view seen from the direction AA ′ of FIG. 7 after the uneven band 34 is completely attached to the binding unit 35, and FIG. 9 is a side view seen from the direction B-B ′ of FIG. 8.

8 and 9, only the upper end 46a of the valve handles 46a and 46b of the intermediate valve is inserted into the groove 32a of the valve insert 32. .

10 is a perspective view showing a safety cap 60 for gas supply blocking according to a second embodiment of the present invention. The safety cap 60 of FIG. 10 is attached to the body plate 31 and includes a U-shaped pin that can be inserted between the valve handle 46b of the gas supply intermediate valve 40 and the intermediate valve body 44. The valve pressing prevention part 38 is shown further. The U-shaped pin of the valve depressor 38 has a shape similar to a horseshoe, and is inserted between the valve handle 46b of the gas supply intermediate valve 40 and the intermediate valve body 44, and the valve shaft ( 45) to fit around. By providing the valve pressing preventing portion 38 as described above, it is possible to prevent the valve handles 46a and 46b from being pressed.

FIG. 11 is a schematic view showing a state in which the U-shaped valve pressing preventing portion 38 of the safety cap according to the second embodiment is inserted between the valve handle 46b and the valve body 44 of FIG. 7, and FIG. 12. 9 is a side view illustrating a state in which the U-shaped valve pressing preventing part 38 according to the second embodiment is inserted into the lower end of the valve handle 46b of FIG. 9.

The person who carries out the gas transfer service inserts the sealing part 39 of the safety cap 60 into the hose connection part 48 of the intermediate valve, and the body plate 31 and the sealing part 39 of the safety cap 60 are mutually inclined. The valve depressing portion 38 is inserted between the valve handle 46b and the intermediate valve body 44 while being rotated by 90 degrees. Next, the flexible body plate 31 is bent to insert the valve handle 46a into the groove 32a of the valve insert 32. Then, the uneven band 34 is bent and wound in the same direction as the body plate 31 is bent, and then passed through the through hole 35a of the binding part 35 to fix it. According to the gas supply blocking safety cap 60 of FIGS. 10, 11 and 12, since the conventional safety intermediate valve 40 is rotatable when the valve handles 46a and 46b are pressed in the direction of the valve body 44, If the valve pressing prevention part 38 is provided, there is an effect of preventing rotation by preventing the pressing.

13 is a perspective view showing a safety cap 60 for gas supply blocking according to a third embodiment of the present invention. The safety cap 60 of FIG. 13 is attached to the body plate 31 and includes a U-shaped pin which can be inserted between the valve handle 46b of the gas supply intermediate valve 40 and the intermediate valve body 44. The valve pressing prevention part 38 is shown further. The U-shaped pin of the valve depressor 38 has a shape similar to a horseshoe, and is inserted between the valve handle 46b of the gas supply intermediate valve 40 and the intermediate valve body 44, and the valve shaft ( 45) to fit around. By further providing such a valve holding preventing portion 38, it is possible to prevent the valve handles 46a and 46b from being pressed.

FIG. 14 is a schematic view showing a state in which the U-shaped valve pressing preventing portion 38 of the safety cap according to the third embodiment is inserted between the valve handle 46b and the valve body 44 of FIG. 7, and FIG. 15. 9 is a side view illustrating a state in which the U-shaped valve pressing preventing part 38 according to the third embodiment is inserted into the lower end of the valve handle 46b of FIG. 9.

The person who carries out the gas transfer service inserts the sealing part 39 of the safety cap 60 into the hose connection part 48 of the intermediate valve, and the body plate 31 and the sealing part 39 of the safety cap 60 are mutually inclined. The valve depressing portion 38 is inserted between the valve handle 46b and the intermediate valve body 44 while being rotated by 90 degrees. Next, the flexible body plate 31 is bent to insert the valve handle 46a into the groove 32a of the valve insert 32. Then, the uneven band 34 is bent and wound in the same direction as the body plate 31 is bent, and then passed through the through hole 35a of the binding part 35 to fix it. According to the gas supply cutoff safety cap 60 of FIGS. 13, 14 and 15, since the conventional safety intermediate valve 40 is rotatable when the valve handles 46a and 46b are pressed in the direction of the valve body 44, If the valve pressing prevention part 38 is provided, there is an effect of preventing rotation by preventing the pressing.

The second embodiment and the third embodiment, respectively, for the convenience of understanding that the valve pressing preventing portion 38 is attached to the upper or side of the body plate 31 in the safety cap of the first embodiment, In addition, if the safety cap of the first embodiment includes any type of the valve pressing preventing portion 38 is obviously within the scope of the present invention.

As described above, according to the gas supply blocking safety cap according to the present invention will obtain the following effects.

First, in the case of performing gas leakage prevention and unauthorized use prevention measures, which are gas transfers, a conventional operation includes separating an intermediate valve from a gas supply pipe and engaging a plug during transfer operation. Since there is a disadvantage in that it takes a lot of work time, including the operation of dismantling the plug and coupling the intermediate valve, according to the gas supply blocking safety cap according to the present invention, the removal of the intermediate valve or the plug disassembly is unnecessary. Work that used to take 20 minutes can be completed in just a minute or two, so the time required for the transfer of gas can be dramatically shortened.

Second, in the conventional gas service transfer service, there is a problem that frequent damage to the gas supply pipe occurs due to the excessive removal of the intermediate valve or the dismantling of the plug, and there is a concern that a dispute over ownership of the intermediate valve may occur. However, according to the gas supply blocking safety cap according to the present invention, since the intermediate valve dismantling or plug dismantling work is unnecessary, the possibility of civil complaints can be solved.

Third, according to the gas supply blocking safety cap according to the present invention, since the intermediate valve dismantling or plug dismantling work is unnecessary, the intermediate valve and plug costs can be reduced. Therefore, although the cost of the conventional gas service was costing tens of thousands of won due to the intermediate valve and plug costs in the transfer operation, but according to the gas supply shut-off safety cap according to the present invention only costs a few hundred won, The cost of parts at work is drastically reduced to 1/100.

In the foregoing specification, the best embodiments of the present invention have been disclosed using specific terminology, which is intended to facilitate understanding of the present invention. That is, the present invention is not limited to the embodiments and drawings described above, and the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims. In addition, one of ordinary skill in the art can derive various modifications and equivalent other embodiments by substitution, elimination, merging, etc. from the purpose and configuration of the present invention, but this is also within the scope of the present invention. Will understand that.

Claims (5)

Flexible body plate 31; A valve insertion part 32 formed inside the body plate to insert the valve handle of the intermediate valve for gas supply and prevent the valve handle from being rotated; A concave-convex band 34 having a plurality of concave portions and convex portions on at least one surface thereof and coupled to one end of the body plate; A binding part 35 for receiving and fixing the uneven band; And Safety cap for gas supply blocking having a sealing portion (39) that can block the hose connection portion 48 of the gas supply intermediate valve. The method of claim 1, The binding unit 35, And a through hole (35a) through which the uneven band can pass, and having at least one protrusion (36) that can be inserted into and fixed to the concave portion of the uneven band. The method of claim 1, The sealing portion 37, the stopper (37b) having a groove (37a) that can cover the hose connection portion of the gas supply intermediate valve; And One end of the stopper, coupled to the body plate 31, the gas supply blocking safety cap, characterized in that it has a connection portion (37c) that can be bent at least 90 degrees. The method of claim 1, The valve insert 32 is, A groove 32a into which the valve handle can be inserted; When the valve handle is inserted is bent flexibly, after the valve handle is inserted, a safety cap for the gas supply cutoff, characterized in that it has a flexible membrane (33) to fix the valve handle to prevent rotation. The method of claim 1, It is attached to the body plate 31, the gas further comprises a valve holding preventing portion 38 including a U-shaped pin that can be inserted between the valve handle and the intermediate valve body of the gas supply intermediate valve Safety cap for supply cutoff.

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