KR20060095398A - Over pressure safety apparatus of aerosol cans for gas range - Google Patents

Abstract

The overpressure safety device for a gas stove according to the present invention is a gas stove in which a gas stove is installed such that a gas can be discharged by combining an aerosol container, and discharges the overpressure when the internal pressure of the aerosol container is over a predetermined value. It is configured to be provided with an overpressure discharge means for. The overpressure discharge means is formed in the gabana body in the installation groove is formed in the transverse direction and the gas discharge passage for discharging the gas inside the aerosol container from the middle portion of the installation groove to one side, the lower side at the inner end of the installation groove While the exhaust hole is formed, the central protrusion of the support member provided in the aerosol container is inserted, the first overpressure gas discharge passage is provided in the middle portion, the screw portion is formed on the inner end of the outer peripheral surface and the second overpressure gas discharge passage is formed. The support cap is screwed to the installation groove of the gabbana body with the screw portion, and the gas discharge passage for discharging the gas by pushing the valve stem of the aerosol container inside the installation groove of the gabbana body The pusher and the spring cup are inserted into the intermediate part via the gap holding part, and the spring cup Between the inner end portion of the over pressure safety spring it consists chihom has to be compressed to a millimeter the pusher and the spring cup when the inner pressure of the aerosol container takes the predetermined value or more is inserted back. The present invention is the first and second when the internal pressure of the aerosol container is raised above a certain value due to the failure, ambient shock and heat of the gas stove in the state that the aerosol container is coupled to the gabbana of the stove to enable gas discharge. It acts on the installation groove of the gabbana body through the overpressure gas discharge passage to compress the overpressure safety spring to lock the pusher and the spring cup back, and to safely discharge the overpressure discharged to the outside. There is an advantage to improve.

Description

OVER PRESSURE SAFETY APPARATUS OF AEROSOL CANS FOR GAS RANGE}

1 to 7 is a view showing the configuration and operation of the vessel overpressure safety device for a gas stove according to the present invention,

1 is a cross-sectional view of a state in which the overpressure is applied to the inside of the vessel in a state where the nozzle of the aerosol container is separated from the gas stove of the gas stove, Figure 2 and 3 is a state in which the nozzle of the aerosol container is coupled to the gabbana of the stove 2 shows a state in which gas is discharged normally, and FIG. 3 shows a state in which overpressure is applied.

4 to 6 is a view showing the configuration and operation of the nozzle assembly coupled to the aerosol container, Figure 4 is a cross-sectional view showing a normal state that the gas discharge is stopped, Figure 5 is a cross-sectional view showing a state that the gas is discharged normally 6 is a cross-sectional view showing a discharge state when overpressure is applied to the inside of the container.

Figure 7 shows an enlarged cross-sectional view of the main portion of the gabbana.

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

10 aerosol container 20 support member

20a: center protrusion 30: nozzle assembly

34: valve stem 35: overpressure safety spring

36: opening and closing ring 37: sealing body

38: elastic spring 39: contact member

100: Gabbana 110: the body of Gabbana

111: installation groove 112,131,191a: gas discharge passage

113: exhaust hole 114,115 installation hole

120: support cap 121: first overpressure gas discharge passage

122: screw portion 123: second overpressure gas discharge passage

130: pusher 140: outer cylinder

141: push pin 142: spring cup

143: clearance maintaining part 180: overpressure safety spring

190: Cork 191: Cork Body

192: opening and closing 193: spring

194: stopper 194a: gas discharge hole

195 connector 200 lock fastener

210: stopper 220: cap

230: spring

 The present invention relates to a vessel overpressure safety device for a gas stove, and in particular, the gas passage of the gas stove is provided with an overpressure discharging means coupled to enable the gas discharge of the aerosol container, or the impact and heat from the surroundings It is related with the overpressure safety device of the gas stove which can improve safety and reliability in use by discharging the overpressure safely when the internal pressure of the lower aerosol container rises above a certain value.

In general, aerosol cans are filled with the contents to be injected (fluid or gas) inside the container and sealed together with the injection gas (propellant or propellant gas) using the pressure of the injection gas. Refers to a container for spraying outside). At this time, as the injection gas, gases such as LPG, DME, Freon, carbon dioxide, nitrogen and oxygen are generally used. Representative examples of such aerosol containers include portable gas containers, spray mosquito repellents, hair sprays, portable aerosol fire extinguishers, and gas lighter containers. For example.

Since the aerosol container is filled with gas to eject the contents, the liquid petroleum gas filled in the inside is easily vaporized due to a certain impact or heat applied from the outside and bursts with deformation such as expansion of the container. There is a risk. Therefore, there is always a risk that can cause fire and personal injury due to rupture.

Therefore, as a means for delaying or preventing the rupture of the portable gas container, the upper and lower sealing caps are formed in a bent and curved shape so as to secure a free space in consideration of the expansion of the liquefied petroleum gas filled with the upper and lower sealing caps. However, when the liquefied petroleum gas is expanded, the lower sealing cap is opened or convex, and the expansion of the filled liquefied petroleum gas continues even when the volume inside the portable gas container is at maximum. The joint portion of the lower sealing cap is separated and the portable gas container is ruptured.

Although portable aerosol containers always have a risk of rupture, they are still used outdoors and at home because of their ease of use and ease of carrying, and efforts to minimize the risk of rupture are still weak. to be.

Therefore, in order to solve such a problem, a cylindrical aerosol container body, an upper sealing cap which is bent into a predetermined shape and jointly coupled to the upper portion of the container body, and is formed in a concave curved surface inside the container body to form a container body. In the aerosol container consisting of a lower sealing cap coupled to the lower portion, the support member is press-bonded to the center of the upper sealing cap, the nozzle assembly for injecting the filled gas in the container body in the center of the support member, An overpressure safety device for an aerosol container in which the configuration of the nozzle assembly is improved to discharge the gas inside the aerosol container to the outside when the pressure inside the aerosol container becomes higher than a predetermined pressure is known from Korean Patent No. 10-0437957.

The overpressure safety device of the aerosol container is such that when the internal pressure of the aerosol container is increased to a certain pressure or more, and a force that overcomes the elastic force of the overpressure safety spring is applied, the valve stem is increased by the internal pressure, and the opening and closing ring and the supporting jaw are opened. Filled gas is discharged to the outside air to reduce the internal pressure of the aerosol container. In addition, when the internal pressure of the aerosol container is lowered below a certain pressure and becomes weaker than the elastic force of the overpressure safety spring, the valve stem is lowered by the restoring force of the overpressure safety spring so that the opening / closing ring is in close contact with the support tick so that the gas discharge can be blocked.

However, the aerosol container is mainly mounted on the gas stove. When the gas stove is blocked due to a failure while the aerosol container is mounted on the gas stove, or the external gas is subjected to a certain shock or heat from the outside, the aerosol container itself is overpressured. Regardless of the safety device, there is still a risk that the container may be deformed and ruptured resulting in fire or personal injury.

 The present invention has been made in order to solve the above problems and defects as described above, the gas passage in the state that is coupled to enable the gas discharge of the aerosol container is provided with the overpressure discharge means in the gas stove of the gas stove, It is an object of the present invention to provide a gas stove container overpressure safety device that can improve safety and reliability by discharging the overpressure to the outside when the internal pressure of the aerosol container rises above a certain level due to impact and heat.

 In order to achieve the above object, the overpressure safety device for a gas stove according to the present invention is a gas stove in which a gas stove is installed so as to discharge gas by combining an aerosol container, and the internal pressure of the aerosol container in the gavana is higher than or equal to a predetermined value. In case of overpressure, an overpressure discharge means for discharging the overpressure is provided.

The overpressure discharge means is formed in the gabana body in the installation groove is formed in the transverse direction and the gas discharge passage for discharging the gas inside the aerosol container from the middle portion of the installation groove to one side, the lower side at the inner end of the installation groove While the exhaust hole is formed, the central protrusion of the support member provided in the aerosol container is inserted, the first overpressure gas discharge passage is provided in the middle portion, the screw portion is formed on the inner end of the outer peripheral surface and the second overpressure gas discharge passage is formed. The support cap is screwed to the installation groove of the gabbana body by the screw portion, and the gas discharge passage for discharging the gas and push the valve stem of the aerosol container inside the installation groove of the gabbana body is provided The pusher and the spring cup are inserted into the intermediate part via the gap holding part, and the spring cup and the spring cup An overpressure safety spring is inserted between the inner end portions of the tooth grooves so that the pusher and the spring cup are pushed back when the internal pressure of the aerosol container is over a predetermined value.

 Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail as follows.

  1 to 7 is a view showing the configuration and operation of the vessel overpressure safety device of the gas stove according to the present invention, Figure 1 is a state in which the overpressure is applied to the inside of the vessel in the nozzle of the aerosol container is separated from the gas stove of the gas stove 2 and 3 show a state in which gas is discharged normally while the nozzle of the aerosol container is coupled to the gabbana of the gas stove, and FIG. 3 shows a state in which overpressure is applied. will be.

4 to 6 is a view showing the configuration and operation of the nozzle assembly coupled to the aerosol container, Figure 4 is a cross-sectional view showing a normal state that the gas discharge is stopped, Figure 5 is a cross-sectional view showing a state that the gas is discharged normally 6 is a cross-sectional view showing a discharge state when overpressure is applied to the inside of the container.

And Figure 7 shows an enlarged cross-sectional view of the main portion of the gabbana.

First, referring to FIG. 1, reference numeral 10 denotes a portable aerosol container, and 100 illustrates a gabbana installed to discharge the gas by coupling the aerosol container 10 to a gas stove (not shown).

The aerosol container 10 is a cylindrical container body 12 for filling gas, the upper and lower parts integrally coupled to the upper and lower parts of the container body 12 to seal the container body 12 The nozzle assembly 30 is installed in the support member 20 that is crimped to the center of the sealing cap 14, 14a and the upper sealing cap 14 to inject the gas filled in the container body 12 )

Referring to FIG. 4, the nozzle assembly 30 has a predetermined space portion 32a having a support jaw 32c formed therein, an upper portion of which is opened, and a lower portion of the nozzle body 30 in which a gas inflow path 32b is formed. (32); A gas injection port 34b for injecting the gas introduced into the space 32a of the nozzle body 32 into the outside through the gas inlet 34a is formed so that the upper end is exposed through the center of the support member 20. A valve stem 34 installed in the space 32a of the body 32; A rubber opening / closing ring 36 supported by the support jaw 32c in a state of being fitted to the outer circumference of the gas inlet 34a of the valve stem 34 to open and close the gas inlet 34a by an inlet / out action of the valve stem 34; A close contact member 39 positioned between the overpressure safety spring 35 and the opening / closing ring 36 in a state of being fitted to the outer circumference of the valve stem 34 to closely contact the opening / closing ring 36 in the direction of the support jaw 32c; An overpressure safety spring 35 which is elastically installed between the contact member 39 and the support member 20, and whose force acts in a direction in which the opening / closing ring 36 is in close contact with the support jaw 32c at all times; An elastic spring 38 installed between the lower end of the space 32a of the nozzle body 32 and the valve stem 34 to elastically support the valve stem 34; It consists of a sealing body 37 for sealing between the support member 20 and the nozzle body (32).

Hereinafter, referring to FIGS. 1 and 7, an installation groove 111 formed to open in the lateral direction is formed in the body 110 of the gabbana 100, and in the tip of the installation groove 111 of the gabbana body 110. The support cap 120 into which the central protrusion 20a of the support member 20 provided in the aerosol container 10 is inserted and fixed is fixed, and the aerosol container 10 is installed inside the installation groove 111 of the gabbana body 110. The pusher 130 and the spring cup 142 provided with a gas discharge passage 131 through which the gas is discharged by pushing the valve stem 34 of FIG. The pusher 130 and the spring cup 142 are inserted between the spring cup 142 and the inner end of the installation groove 111 when the internal pressure of the aerosol container 10 exceeds a predetermined value. An overpressure safety spring 180 that is compressed to be pushed is inserted.

The pusher 130 is a push pin 141 is fixed to the inner side of the outer cylinder 140, the gas discharge passage 131 is formed between the outer cylinder 140 and the push pin 141, push pin 141 The spring 144 is inserted between the head of the head and the spring cup 142.

A gas discharge passage 112 through which gas inside the aerosol container 10 is discharged is formed in the middle of the installation groove 111 of the gabbana body 110, and a spring cup 142 is formed at an inner end of the installation groove 111. Exhaust holes 113 for discharging internal air are formed so that they can move.

The support cap 120 coupled to the front end of the gabbana body 110 is formed with an overpressure gas discharge passage 121 through which the overpressure of the aerosol container 10 is discharged, and an installation hole formed under the gabbana body 110 ( 114 is coupled to the cock 190 that is opened when the gas of the overpressure discharged to the overpressure gas discharge passage 121 is discharged.

A locking mechanism 200 for locking the pusher 130 and the spring cup 142 to the position pushed back by overpressure is coupled to the lower side of the middle of the gabbana body 110.

The cock 190 is fixed to the cock body 191 having a gas discharge passage 191a to the installation hole 114 of the gabbana body 110, the opening and closing port 192 is coupled via a spring 193, The stopper 194 having the gas discharge hole 194a is fixed to the outer end.

The connection pipe 195 for supplying the discharged gas to the burner may be connected to the gas discharge hole 194a formed in the stopper 194 of the cock 190.

The lock 200 is a stopper 210 is coupled to the installation hole 115 formed in the lower middle portion of the installation groove 111 of the gabbana body 110 so that the stopper, the cap 220 is screwed outward The inside of the cap 220 is a spring 230 for elastically supporting the stopper 210 is coupled configuration.

In the drawings, reference numerals 150 to 157 denote O-rings.

Referring to the operation of the vessel overpressure safety device of the gas stove according to the present invention as described above are as follows.

First, the portable aerosol container 10 is partially filled with the gas inlet 34a through the gas injection port 34b when the first gas is filled, and the rest of the support member through which the valve stem 34 and the valve stem 34 pass. Filled with the gap of (20).

The gas-filled aerosol container 10 is mainly used to be mounted on the gas stove, Figure 1 to Figure 6 is a cross-sectional view showing the use state, Figure 1 is a gas stove 100 and aerosol container 10 2) and 5 show a state in which the aerosol container 10 is coupled to the gabbana 100 of the gas stove, and the gas is discharged normally, and FIGS. 3 and 6 show the gas. After the aerosol container 10 is coupled to the gabbana 100 of the stove, the aerosol container 10 is shown to be in an overpressure state.

In the state of FIG. 1, the pusher 130 of the gabbana 100 and the valve stem 34 of the aerosol container 10 provided in the gas stove are separated. As shown in FIG. 3, the aerosol container 10 is the valve stem 34. Since this is not pressed, the discharge of the gas contained in the aerosol container 10 is blocked in the normal state.

2 and 5, the aerosol container 10 is coupled to the gabbana 100 of the gas stove so that the valve stem 34 of the aerosol container 10 is inserted into the support cap 120 of the gabbana 100. The tip of the valve stem 34 is inserted into the outer cylinder 140 of the pusher 130, and the valve stem 34 is pushed toward the aerosol container 10 by the pusher 130. The gas inlet (34a) of the) is out of the opening and closing ring 36, the gas introduced into the space portion 32a of the nozzle body 32 is introduced into the gas inlet (34a) is discharged through the gas injection port (34b).

2 and 5, when the pressure by the pusher 130 is released as shown in FIG. 1, the valve stem 34 returns to its original position by the restoring force of the elastic spring 38, and the gas inlet 34a opens and closes the ring ( It is sealed by 36) and gas discharge is blocked.

Meanwhile, as shown in FIG. 1, the internal pressure of the aerosol container 10 is increased to a predetermined or higher pressure in the state where the aerosol container 10 is separated from the gabbana 100, thereby increasing the elastic force of the overpressure safety spring 35 of the aerosol container 10. When the winning force is applied, as shown in FIG. 6, the valve stem 34 rises due to the internal pressure, and the opening / closing ring 36 and the support jaw 32c are opened to open the gas filled in the aerosol container 10 to the outside air. The internal pressure of the container 10 falls. In addition, when the internal pressure of the aerosol container 10 is lowered below a predetermined pressure and becomes weaker than the elastic force of the overpressure safety spring 35, the valve stem 34 is lowered by the restoring force of the overpressure safety spring 35 to support the opening / closing ring 36. The gas discharge is blocked by being in close contact with the tick 32c.

In addition, the aerosol container 10 is coupled to the gabbana 100 as shown in FIGS. 2 and 5 and the aerosol container is blocked due to a failure in a state in which gas can be discharged or a shock or heat is applied from the outside. 10) When the internal pressure rises above a predetermined value, as shown in FIGS. 3 and 6, the overpressured gas in the aerosol container 10 is discharged, and the discharged first overpressure gas formed in the support cap 120 is discharged of the overpressure gas. It is discharged through the cork 190 coupled to the gabbana body 110 through the passage 121, and at the same time the gabbana body 110 through the second overpressure gas discharge passage 123 in the first overpressure gas discharge passage 121 Inflow into the middle of the installation groove 111, thereby overpressure safety spring 180 is compressed by the pusher 130 and the spring cup 142 is pushed backward, the installation groove 111 of the gabbana body 110 Switch of the lock 200 installed in the lower middle portion Buffer 210 thereby locking the mounting recess 111 protrudes in an inner spring cup 142 and this by being sandwiched between the pusher 130, the pusher 130 and the cup spring 142 in the reverse position.

In this state, when the internal pressure of the aerosol container 10 is lowered below a predetermined pressure and becomes weaker than the elastic force of the overpressure safety spring 35, the valve stem 34 is lowered by the restoring force of the overpressure safety spring 35 to open and close the ring 36. ) Is in close contact with the support tick (32c) gas is blocked.

And when it is restored to the normal state in which the gas stove can be used again in the state of FIG. 3, when the cap 220 of the lock 200 is removed and the stopper 210 is taken out to release the locking, the pusher 130 and Since the spring cup 142 is returned to its original position by the elasticity of the overpressure safety spring 180, when the cap 220 is screwed again, it can be used in a normal state.

A common gas stove is an aerosol in which the gas pressure in the aerosol container rises above a certain level due to a blockage of the gas flow path or a certain shock or heat applied from the outside due to a failure in the state where the gas can be discharged due to the aerosol container being coupled to the gabbana. Even when the container itself has an overpressure safety device, there is still a risk that the container may be deformed and ruptured, resulting in a fire or injury, regardless of the overpressure safety device of the container itself. The overpressure safety device of the stove is locked by reversing the pusher and the spring cup by compressing the overpressure safety spring by acting on the installation groove of the body of the gabbana through the first and second overpressure gas discharge passages formed in the support cap. Since the overpressure discharged to the outside safely, There is an advantage of increasing the liquid safety and improving the reliability of the product.

Claims (7)

In the gas stove in which the gabbana 100 is installed to couple the aerosol container 10 to discharge the gas, when the internal pressure of the aerosol container 10 becomes an overpressure above a predetermined value, the overpressure is discharged. Overpressure safety device for a gas stove, characterized in that the overpressure discharge means 101 is provided to be configured. According to claim 1, The overpressure discharge means 101 is the installation groove 111 is formed in the gabana body 110 in the transverse direction and the aerosol container 10 from the middle of the installation groove 111 to one side A gas discharge passage 112 through which gas is discharged is formed, and an exhaust hole 113 is formed downward from an inner end of the installation groove 111, and a support member provided in the aerosol container 10 ( The central protrusion 20a of the 20 is inserted, the first overpressure gas discharge passage 121 is provided at the middle portion, the screw portion 122 is formed at the inner end of the outer circumferential surface, and the second overpressure gas discharge passage 123 is formed. The support cap 120 is screwed into the mounting groove 111 of the gabbana body 110 with the screw portion 122, and inside the installation groove 111 of the gabbana body 110 of the aerosol container 10. Push the valve stem 34 so that the gas is discharged, and the gas discharge passage through which the discharged gas is discharged The pusher 130 and the spring cup 142 provided with the 131 are inserted through the gap maintaining part 143 in the middle portion thereof, and the spring cup 142 and the inner end of the installation groove 111 are disposed between the pusher 130 and the spring cup 142. When the internal pressure of the aerosol container 10 is over a predetermined value, the vessel of the gas stove, characterized in that the overpressure safety spring 180 is inserted is compressed so that the pusher 130 and the spring cup 142 is pushed back Overpressure safety device. The method of claim 1, The overpressure safety of the gas stove, characterized in that the coke 190 is opened by the gas of the overpressure discharged to the overpressure gas discharge passage 121 to the installation hole 114 formed to the lower side of the gabbana body 110. Device. The method of claim 1, Underpressure of the gas stove container overpressure characterized in that the locking mechanism 200 for locking the pusher 130 and the spring cup 142 in the position pushed back by the overpressure is coupled to the lower side of the gabbana body 110 safety device. The method of claim 3, wherein The cock 190 is fixed to the cock body 191 having a gas discharge passage 191a to the installation hole 114 of the gabbana body 110, the opening and closing port 192 is coupled via a spring 193, Container overpressure safety device for a gas stove, characterized in that the stopper (194) having a gas discharge hole (194a) is fixed to the outer end. The method of claim 4, wherein The lock 200 is a stopper 210 is coupled to the installation hole 115 formed in the lower middle portion of the installation groove 111 of the gabbana body 110 so that the stopper, the cap 220 is screwed outward And, the inside of the cap 220 container overpressure safety device for a gas stove, characterized in that the spring 230 for elastically supporting the stopper 210 is coupled. The method of claim 5, wherein Gas outlet hole (194a) formed in the stopper (194) of the cock (190) the overpressure safety device of the gas stove container, characterized in that the connection pipe 195 for supplying the discharged gas to the burner is configured.

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