KR102037003B1 - Aerosol can having overpressure protector and valve assembly thereof - Google Patents

Abstract

The present invention relates to an injection vessel and a valve assembly including the same. The injection vessel comprises: a housing having an upper sealing cap sealing the upper portion and an accommodation space for accommodating contents; a mount cup mounted on the upper sealing cap and having a through hole formed at the center thereof; a stem housing including a mounting part having a hollow portion formed therein and mounted in the mount cup, and a communication flow path so that the hollow portion and the accommodation space communicate; a valve stem installed through the through hole to allow sliding in the hollow portion, and having an orifice configured to selectively communicate with the hollow portion by sliding; and a flow path blocking valve formed to block an inlet of the communication flow path. The flow path blocking valve comprises: a body having at least one cantilever part having a cantilever shape, formed in a cylindrical shape, and inserted into the inlet of the communication flow path; a closure member accommodated in the body; and a ring member having one side supported by an engaging part protruding from the cantilever part and the other side installed to be in contact with the closure member. If the temperature is above the preset temperature, the ring member is deformed so that the closure member passes through the central portion of the ring member. Therefore, the closure member can be moved toward the inside of the communication flow path.

Description

Overpressure-free injection vessel and its valve assembly {AEROSOL CAN HAVING OVERPRESSURE PROTECTOR AND VALVE ASSEMBLY THEREOF}

The present invention relates to a spray container capable of resolving an overpressure.

In general, the injection container refers to a container for injecting the contents to the outside using the internal pressure while the contents (fluid or gas) to be injected are sealed inside the housing. Representative examples of such injection containers include portable gas containers, spray mosquito repellents, hair sprays, portable aerosol fire extinguishers, containers for gas lighters, and the like.

In general, the spray container includes a housing (can) for containing contents, a mount cup fixed to an upper end of the housing, and a valve assembly fixed to a central protrusion of the mount cup. In particular, the valve assembly is configured to maintain a closed state when not in use of the injection vessel, and when in use, a certain amount of contents are leaked out.

On the other hand, the spray container may reach overpressure during thermal, mechanical or chemical reasons during use or storage. However, even when the injection vessel is in an overpressure state, the valve assembly is formed to maintain a closed state or to discharge a certain amount of contents, so that when the injection vessel reaches an overpressure state, the injection vessel may malfunction (expand or deform). This occurred.

Problems may occur such that a dangerous situation such as an explosion of the injection container is reached due to a malfunction of the injection container. Thus, conventionally, a method of adding various structures for releasing overpressure gas to the outside has been used. However, these structures have a problem that the risk of other types of safety accidents occurs due to the mass release of overpressure gas at one instant.

Accordingly, in the present invention, in order to prevent the malfunction of the injection vessel, it is to propose a device and a mechanism that can prevent the gas of the injection vessel to the outside and prevent the overpressure state.

One object of the present invention is to provide an injection container and its valve assembly capable of resolving overpressure before a malfunction caused by overpressure is provided by providing an overpressure resolving mechanism of a type different from the prior art.

Another object of the present invention is to provide an injection container and a valve assembly thereof that can prevent the internal structure from being easily deformed when an impact is applied to the outside.

Another object of the present invention is to provide an injection container and its valve assembly which can effectively prevent the outflow of the gas inside the injection container to prevent the risk of safety accidents.

In order to achieve the above object of the present invention, an injection container according to an embodiment of the present invention comprises: a housing having an upper sealing cap for sealing an upper portion and an accommodation space for accommodating contents; A mount cup mounted to the upper sealing cap and having a through hole formed at a center thereof; A stem housing having a hollow portion formed therein and having a mounting portion mounted to the mount cup, and a communication flow passage so that the hollow portion and the receiving space communicate with each other; A valve stem installed through the through hole and slidable in the hollow portion, the valve stem having an orifice configured to selectively communicate with the hollow portion by sliding; And a flow path blocking valve formed to block the inlet of the communication flow path, wherein the flow path blocking valve has at least one cantilever portion formed in a cantilever shape, is formed in a cylindrical shape and is inserted into the inlet of the communication flow path. body; A closure member accommodated in the body; And one side is supported by a locking portion protruding from the cantilever portion, and the other side includes a ring member installed to be in contact with the closure member. When the ring member is above a predetermined temperature, the closure member is the Deformed to pass through the center of the ring member, the closure member is able to move toward the interior of the communication passage.

According to one embodiment of the invention, the lower end of the ring member is in contact with the engaging portion, the upper end of the ring member is arranged to contact the closing member can be limited in the movement of the closing member in the direction of gravity. .

According to an embodiment of the present invention, the closing member is released by the deformation of the ring member, the engagement with the forearm is released, and is moved toward the inlet of the communication passage and inserted into the communication passage. May be made.

According to one embodiment of the present invention, one side of the forearm portion, protruding from the inner peripheral surface of the body to correspond to the outer surface shape of the closure member, the support portion may be formed so that the position of the closure member is fixed.

According to an example of the present invention, the ring member is formed in an annular shape so that both ends are spaced apart from each other, and may be deformed to apply an external force in a radial direction when the internal temperature is greater than or equal to a predetermined temperature.

According to an example of the present invention, the ring member may be made of a shape memory alloy that is deformed when the ring member has a predetermined temperature or more.

According to an example of the present invention, the locking portion may be formed at one end of the cantilever portion adjacent to the inlet of the communication passage.

In this case, the cantilever portion may be made of a material that can be thermally deformed to bend at a specific temperature or more.

In addition, the cantilever portion, the closure member in the interior of the body may be disposed inside the ring member.

According to an example of the present invention, the body may be configured such that one side of the inner circumferential surface is connected to the inlet of the communication passage and the other side is connected to the accommodation space so that the communication passage is closed by the movement of the closing member.

A valve assembly mounted to a mount cup fixed to an upper end of a housing according to the present invention, comprising: a stem having a hollow portion therein and a mounting portion mounted to the mount cup, and a communication passage communicating the hollow portion and the receiving space; housing; One side penetrates through the central portion of the mount cup and the other side is slidably disposed in the hollow portion, the valve stem having an orifice selectively communicated with the hollow portion by the sliding; And a flow path blocking valve part inserted into at least a portion of the communication flow path to block the inlet of the communication flow path, wherein the flow path blocking valve part has at least one cantilever shape having a cantilever shape, and is formed in a cylindrical shape and has the communication flow path. A body installed to be inserted into an inlet of the body; A closure member accommodated in the body; And one side is supported by a locking portion protruding from the cantilever portion, and the other side includes a ring member installed to be in contact with the closure member. When the ring member is above a predetermined temperature, the closure member is the Deformed to pass through the center of the ring member, the closure member is able to move toward the interior of the communication passage.

According to the injection container and the valve assembly according to the present invention as described above, when the temperature inside the injection container increases, the flow path is blocked through the flow path blocking valve to solve the overpressure of the injection container to prevent the malfunction due to the overpressure in advance. have.

In addition, as the temperature inside the injection vessel is increased, the inner diameter of the ring member is expanded, so that the closing member can be inserted into the communication passage, and the gas shutoff mechanism can be more stably operated.

In addition, since the ring member has a structure in which the closing member is supported, even when there is an external impact, it is possible to prevent the closing member from being separated toward the communication flow path, thereby improving the reliability of the product.

In addition, by not letting out the gas inside the injection vessel to the outside, it is possible to prevent the explosion or fire.

1A is a cross-sectional view of a spray container equipped with a valve assembly according to the present invention.
1B is a cross-sectional view of a spray container equipped with a valve assembly according to another embodiment of the present invention.
FIG. 2 is a perspective view illustrating a state in which the valve assembly 100 is mounted to the mount cup 15 of FIG. 1.
3 is a bottom perspective view of the valve assembly 100 of FIG. 2 viewed from below.
4 is a cross-sectional view taken along the line AA of FIG. 2.
FIG. 5 is an enlarged view of B in FIG. 4.
6 is a perspective view of a flow path blocking valve according to the present invention.
7 is a conceptual view showing a spray container equipped with a flow path blocking valve.
FIG. 8 is an enlarged view in which C of FIG. 7 is enlarged.
9 to 11 is a conceptual diagram showing each state according to the movement process of the closing member.
12 is a conceptual diagram showing a state where the flow path blocking valve is inserted into the communication flow path.

Hereinafter, a radiation source system and a non-destructive inspection system including the same according to the present invention will be described in more detail with reference to the accompanying drawings. In the present specification, different embodiments are given the same or similar reference numerals for the same or similar components, and description thereof is replaced with the first description. As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise.

Figure 1a is a cross-sectional view of the injection vessel equipped with a valve assembly according to the present invention, Figure 1b is a cross-sectional view of the injection vessel equipped with a valve assembly according to another embodiment of the present invention.

As shown in Figure 1a and Figure 1b, the middle portion of the longitudinal direction of the injection vessel is irrelevant to the features of the present invention and deemed unnecessary in the description of the present invention by two incisions, but divided between the two incisions As the side portion of the use vessel is omitted, each side of the injection vessel will be connected to each other extending in the vertical direction.

Referring to FIG. 1A, the housing 10 has a cylindrical shape and includes an accommodation space 14 therein to accommodate contents such as fluid or gas and injection gas.

The housing 10 includes a body 11 in which the accommodation space 14 is formed, and a lower sealing cap 12 and an upper sealing cap 13 for sealing both ends of the body 11, respectively. The lower sealing cap 12 may be formed in a curved shape toward the receiving space 14, whereby when the overpressure is exceeded by a predetermined level in the receiving space 14, the volume of the receiving space 14 is enlarged. It can be modified.

The upper sealing cap 13 may be combined with the body 11 to seal the upper portion of the body 11. The upper sealing cap 13 may form a seaming coupling part 1301 to be bent or rolled up with the mount cup 15. The seaming coupling is formed along the edge of the mount cup 15. At the bottom of the upper sealing cap 13, the body 11 may be coupled in a neck-in type. In this case, the body 11 may be formed to extend in a straight line in the longitudinal direction.

The housing 10 may contain a high-pressure gas or liquid fuel and may be formed in a shape of a metal can that can withstand a certain internal pressure. However, the present invention is not necessarily limited thereto, and the housing 10 may contain insecticides, fragrances, cosmetics, and the like.

Referring to FIG. 1A, a mount cup 15 for supporting the valve assembly 100 is coupled to an upper end of the upper sealing cap 13.

The mount cup 15 includes a locking portion 152 to be mounted to a fuel mounting device such as a gas stove, for example, and a protrusion 151 is provided at the center to fix the valve assembly 100. It is prepared. However, the locking portion 152 may not exist or may be formed in other forms in some cases. For example, a cap having a push button for spraying may be mounted when the cosmetic 10 or the pesticide is contained in the housing 10 in another form of the locking portion 152.

The mount cup 15 is formed by protruding the engaging projection 1302 at the lower end of the seaming coupling portion 1301 of the upper sealing cap (13). The locking protrusion 1302 may be formed as the mount cup 15 is assembled by crimping when the mount cup 15 is coupled to the injection container accommodation portion of the gas range.

Referring to Figure 1b, the injection vessel according to another embodiment of the present invention may be coupled to the lower end of the upper sealing cap 13 and the body 11 in the neck-out type. In the following description, for convenience, the operation method of the valve assembly 100 based on the injection container according to FIG. 1A will be described. However, the present invention is not limited thereto and may be applied to the injection container according to FIG. 1B. Will be self-explanatory.

2 is a perspective view illustrating a state in which the valve assembly 100 is mounted to the mount cup 15 of FIG. 1, and FIG. 3 is a bottom perspective view of the valve assembly 100 of FIG. 2. 4 is a cross-sectional view taken along line A-A of FIG. 2, and FIG. 5 is an enlarged view of B in FIG. 4.

Referring to FIG. 2, the notch groove 153 is formed at one side of the locking portion 152 so that the mount cup 15 may be mounted on a gas range (or an external device on which an injection container may be mounted). The notch groove 153 is disposed upward when the injection container is mounted to the injection container receiving part of the gas range.

The valve assembly 100 includes a valve stem 110 and a stem housing 120 for injecting the contents filled in the receiving space 14 by pressing.

The through hole 154 is formed at the upper center portion of the protrusion 151 of the mount cup 15. A ring-shaped opening / closing member 111 is mounted on the upper inner side surface of the protruding portion 151 of the mount cup 15 so as to cover a part of the through hole 154.

The valve stem 110 is slidably mounted upward and downward on the upper end of the protruding portion 151 of the mount cup 15 by the opening / closing member 111. The upper portion of the valve stem 110 passes through the central hole of the opening and closing member 111 and the through hole 154 to be exposed to the outside of the housing 10. The lower portion of the valve stem 110 is disposed to be received inside the upper end of the protrusion 151 of the mount cup 15. A coupling groove is formed along the circumferential direction on the side of the valve stem 110, and an inner circumference of the opening and closing member 111 is inserted into and coupled to the coupling groove, and the valve stem 110 is vertically moved by the opening and closing member 111. It can be slidably supported in the direction.

An exhaust hole 112 is formed in a direction directly below the upper end of the valve stem 110, an orifice 113 is formed between the lower end of the exhaust hole 112 and the coupling groove, and the exhaust hole 112 is an orifice 113. Through the receiving space 14 of the housing 10 can be communicated through. In this case, the opening and closing member 111 surrounds the coupling groove of the valve stem 110 and may selectively open or close the orifice 113 by sliding the valve stem 110.

The stem housing 120 includes a mounting portion 121 having a hollow portion 1211 therein, and a communication passage 123 for communicating the hollow portion 1211 and the accommodation space 14 of the housing 10. . The hollow portion 1211 may be selectively communicated with the exhaust hole 112 through the orifice 113.

A portion of the mounting portion 121 is accommodated in the protruding portion 151 of the mount cup 15 and has a hollow portion 1211 therein, so that the lower portion of the valve stem 110 can slide in the hollow portion 1211. Is arranged to. At this time, the upper end of the mounting portion 121 is made to support the outer peripheral portion of the opening and closing member 111.

The valve spring 122 is provided inside the mounting portion 121, and the valve spring 122 is configured to elastically support the lower portion of the valve stem 110.

A communication passage 123 is provided inside the stem housing 120 to communicate the hollow portion 1211 and the accommodation space 14 of the housing 10 through the communication passage 123.

The communication passage 123 may include a first communication passage portion 1231 extending in the same or similar direction as that of the longitudinal direction of the housing 10 or the sliding direction of the balance stem 110, and the first communication passage portion 1231. It may be composed of a second communication passage portion (1232) extending laterally of the housing (10). The second communication passage part 1232 may extend in a direction crossing the side surface of the housing 10. An upper end portion of the first communication passage portion 1231 is in communication with the hollow portion 1211, and an end portion of the second communication passage portion 1232 is disposed to be spaced apart from the upper sealing cap 13 so as to communicate with the accommodation space 14. Can be.

Referring to Figure 5 will be described the gas outflow action of the valve assembly 100.

When the spray container is mounted so as to lie horizontally on the spray container receiving portion of the gas range (or an external device, not shown), the notch groove 153 of the mount cup 15 faces upwardly of the spray container receiving portion and the stem The second communication flow path 1232 of the housing 120 is also arranged to face upward.

In the case of an injection vessel using liquid fuel, the liquid fuel may sink in the direction of gravity during use, and the gaseous fuel evaporated into the upper space of the receiving space 14 based on the virtual longitudinal centerline of the housing 10 The second communication path part 1232 and the first communication path part 1231 may be introduced into the hollow portion 1211.

The valve stem 110 may be pressed in the longitudinal direction of the housing 10, by which the valve spring 122 is compressed and the valve stem 110 slides toward the accommodation space 14. Sliding of the valve stem 110 causes the inner circumference of the opening / closing member 111 to be pushed into the receiving space 14, whereby the orifice 113 is opened, so that the gaseous fuel in the receiving space 14 is connected to the stem housing ( In the hollow portion 1211 of the 120 may be injected to the outside through the valve stem 110. When the pressing is released, the injection of the contents may be stopped.

On the other hand, the valve assembly 100 according to the present invention may be configured to include a flow path blocking valve 130 formed to close the inlet of the communication flow path of the stem housing in order to relieve the overpressure of the receiving space (14).

Figure 6 is a perspective view of the flow path blocking valve according to the present invention, Figure 7 is a conceptual view showing a spray container equipped with a flow path blocking valve. FIG. 8 is an enlarged view enlarging C of FIG. 7.

When the injection container according to the present invention reaches an overpressure state for thermal, mechanical or chemical reasons during use or storage, the contents in the receiving space 14 of the housing 10 flow out through the flow path blocking valve 130. It is possible to close the stem housing 120 so as not to. The flow path blocking portion 130 may be installed to be inserted into the valve assembly 100 to prevent overpressure in the accommodation space 14.

The flow path blocking valve 130 is inserted and installed in parallel to the communication flow path 123 of the stem housing 120 to selectively close a point of a passage through which the gas inside the accommodation space 14 is discharged to the outside. . In this case, the flow path blocking valve 130 may be installed at a portion of the second communication passage 1232 disposed in the gravity direction so that the closing member 133 moves in the gravity direction.

As shown in FIG. 7, the flow path blocking valve 130 is notched in the notch groove 153 of the mount cup 15 when the spray container is horizontally mounted to the spray container accommodation portion of the gas range (or external device). Is disposed to face upward in the injection container receiving portion, the second communication passage (1232) of the stem housing 120 may also be disposed to face upward.

In this case, the flow path blocking valve part 130 may be inserted into the hollow portion 1232a (see FIG. 6) of the second communication flow path part 1232 disposed to face upward (ie, gravity direction). Since the flow path blocking valve 130 is disposed in the gravity direction, the closing member 133 located inside the flow path blocking valve 130 moves toward the inlet of the communication flow path 123 by gravity, thereby closing the communication flow path 123. This can be achieved by overpressure relief.

The flow path blocking valve 130 may be configured to include a body 131, a closing member 135, and a ring member 134.

The body 131 has a cylindrical shape and may be installed to be inserted into the inlet of the communication passage 123. The body 131 may have a hollow portion therein to allow the contents of the accommodation space 14 to pass through the flow path blocking valve 130 and be discharged to the outside of the housing 10.

As shown in FIG. 6, the outer circumferential surface of the body 131 may be formed at a position spaced apart from each other so that the plurality of protrusions 131a are fitted to the communication passage 123. Each protrusion 131a serves to fix the position when the flow path blocking valve 130 is inserted into the communication flow path 123. Since the plurality of protrusions 131a are installed to be in contact with the inner circumferential surface of the communication passage 123, the contents in the accommodation space 14 are transferred through the space between the plurality of protrusions 131a and the communication passage 123. It will be able to move to the communication flow path 123 of 120.

The body 131 may be divided by a plurality of grooves 132c spaced apart in the circumferential direction along the outer circumferential surface, and may include at least one cantilever portion 132 having a shape of a cantilever beam. The groove 133 and the forearm 132 may extend along the longitudinal direction of the body 131.

The arm 132 serves to support the closing member 133 and the ring member 134, and may be bent in a radial direction when subjected to an external force.

The arm 132 may be made of a plastically deformable material. That is, the cantilever 132 may be made of a material that can be bent or bent by heat. For example, the cantilever 132 is a thermoplastic material, polyoxymethylene (POM, Poly-Oxy-Methylene), polyethylene (PE, Polyethylene), polypropylene (PP, Polypropylene), polystyrene (PS, Plystylene), poly Polyvinychloride (PVC), ABS resin (Acrylonitrile Butadien styrene Resin), Polyamide (PA, Polyamide), Polycarbonate (PC, Polycarbonate), Polyphenylsulfide (PPS, Polyphenylesulfied), Polyetherketone (PEEK, Polyetheretherketone) , Polytetrafluoromethylene (PTFE, Polytetrafluoroethylene) and the like.

The outer arm 132 may include a locking part 132a protruding from an inner side of the outer arm 132 so as to restrict the lower end of the ring member 134 from being separated in the gravity direction. One end of the ring member 134 is in contact with and supported by the locking portion 132a.

A part of the inner circumferential surface of the outer arm 132 may protrude in a round shape toward the center of the body 131 and may have a curved shape. Alternatively, the locking portion 132a may have a shape protruding from the end of the cantilever 132 adjacent to the inlet of the communication passage 123 when the passage blocking valve 130 is inserted into the communication passage 123. Since the locking portion 132a supports the ring member 134, the closing member 135 positioned at the upper end of the ring member 134 serves to limit the movement toward the inlet of the communication passage 123. In addition, the locking portion 132a may be formed to protrude in various forms such as a trapezoid and a triangle in addition to a round shape.

The closing member 135 is accommodated in the body 131 and may be located at the upper end of the ring member 134. Here, the upper end means a direction perpendicular to the horizontal position when the injection vessel is mounted in the fuel mounting device. That is, the closing member 135 is located outside the communication passage 123 than the ring member 134.

The closing member 135 may refer to a ball or steel ball having a spherical shape. However, the shape of the closing member 135 may be formed of a polyhedron that can block the inlet of the communication flow path in addition to the spherical shape.

The closing member 135 is located outside the communication passage 123 than the ring member 134, and will be at the upper end of the ring member 134. Since the closing member 135 is positioned above the ring member 134, when the temperature of the ring member 134 is lower than or equal to a predetermined temperature, the closing member 135 is supported by the upper end of the ring member 134, so that the communication path 123 cannot be closed. In this case, the gas of the receiving portion 14 will be able to move toward the communication passage 123.

When the temperature of the accommodation space is increased such that the ring member is above the preset temperature, the closing member 135 may freely fall toward the inside of the communication passage 123 through the hole formed in the center of the ring member 134. It may be, it is inserted into the communication passage 123 it is possible to close the communication passage 123. The closing member 135 inserted into the communication passage 123 may prevent the gas from moving through the communication passage 123 even when there is an external impact. In addition, since the closing member 135 has a structure that is supported by the ring member 134, when the external shock is applied to the injection container, the closing member 135 is in communication with the passage passage 123 in a state not overpressure of the internal space. It can prevent the deviating toward) will improve the reliability of the product.

The diameter of the closing member 135 is made larger than the diameter of the hole formed in the center of the ring member 134, and will be made smaller than the diameter to the outer end of the ring member 134.

In addition, the diameter of the closing member 135 is inserted into the communication passage 123 through the hole formed in the ring member 134 is in close contact with the inner surface of the communication passage 123, the inlet of the communication passage 123 To close, it may be made to have a diameter larger than the diameter to the inner side of the communication passage 123.

In addition, the support portion 132b protrudes from the inner circumferential surface of the body 131 so as to correspond to the outer surface shape of the closure member 135 on one side of the arm 132, thereby fixing the position of the closure member 135. Will be. The support part 132b is disposed to be spaced apart from the locking part 132a, and the ring member 134 and the closing member 135 are positioned in a space between the locking part 132a and the support part 132b. The support part 132b is positioned to be in contact with the outer surface of the closing member 135, and the support part 132b is capable of applying an external force in the gravity direction with respect to the closing member 135. By the force applied to the closing member 135, the ring member 134 can be more firmly supported by the locking portion (132a).

Ring member 134 is disposed inside the body 131, one side is supported by the engaging portion 132a protruding from the cantilever 132, the other side is installed to contact the closing member 135 Can be. Specifically, the lower end of the ring member 134 is in contact with the engaging portion 132a, and the upper end of the ring member 134 is disposed to be in contact with the closing member 135 to move in the direction of gravity of the closing member 135. Movement can be restricted.

The ring member 134 may be deformed to apply an external force to the inner circumferential surface of the body 131 when the internal temperature of the accommodation space 14 is greater than or equal to the preset temperature.

The ring member 134 may be attached to the inner circumferential surface to apply an external force to the inner circumferential surface, or may be disposed adjacent to the inner circumferential surface. At this time, the external force is a force applied in a direction away from the center of the inner circumferential surface. When an external force is applied to the inner circumferential surface, at least part of the body 131 may be bent.

The ring member 134 is formed in an annular shape so that both ends are spaced apart from each other, and may be deformed to apply an external force in a radial direction, that is, in a direction away from the center of the inner circumferential surface when the internal temperature is greater than or equal to a predetermined temperature.

The ring member 134 may be formed of a shape memory alloy that can be deformed when the temperature is greater than or equal to a predetermined temperature.

When the temperature of the ring member 134 rises above a predetermined temperature when the internal temperature of the receiving space 14 rises, the ring member 134 passes through the center of the ring member 134. It can be modified to increase the diameter. When the shape of the ring member 134 is deformed, the closing member 135 may be moved toward the interior of the communication passage 123, and specifically, the closing member 135 located at the upper end of the ring member may be a ring member ( Passing through the hole formed in the center of 134, the free fall in the direction of gravity, it is possible to close the communication flow path.

At this time, according to another embodiment of the present invention, the cantilever portion 132 may be made of a material that can be thermally deformed to allow the portion to be bent at a predetermined temperature or more. In this case, when the temperature of the accommodation space 14 is increased, since the forearm 132 may also be deformed in response to the deformation of the ring member 134, the closing member 135 by the deformation of the ring member 134. Moving to the interior of the communication passage 123 may be made more smoothly.

The ring member 134 may be formed in an annular shape and may have a shape in which a plurality of rings are connected. In addition, the ring member 134 is made of a C-shaped shape so that one side is cut, both ends of the ring member 134 may be opened to each other when the internal temperature of the receiving space rises above a predetermined temperature. When the cut ends of the ring member 134 are opened, the outer circumferential portion 132 may be radially opened by pressing the inner circumferential surface of the body 131 to the outside. However, since the ring member 134 is supported by the locking portion 132a as described above, even when the ring member 134 is deformed, the ring member 134 is prevented from being separated into the communication passage 123. It becomes possible.

In the above, the structure of the flow path blocking valve which concerns on this invention was demonstrated. Hereinafter, an operation according to the movement of the closing member 135 will be described with reference to FIGS. 9 to 11.

As shown in Figure 9, the closing member 135 located in the flow path blocking valve 130 according to the present invention is located on the upper portion of the ring member 134, the ring member 134 to the engaging portion 132a It can be positioned to be locked by. In this case, the gas located inside the accommodation space 14 can move through the communication passage 123.

At this time, the injection vessel may reach an overpressure state during thermal, mechanical or chemical reasons during use or storage, and the temperature of the ring member 134 is increased, and when the temperature exceeds the set temperature, the diameter of the ring member 134 is increased. And, the cantilever 132 in contact with the ring member 134 will also be able to be deformed.

10 and 11, when the temperature of the ring member 134 is greater than or equal to a predetermined temperature, the closing member 135 may be deformed so that its diameter increases to pass through the center of the ring member 134. have. However, as described above, since the ring member 134 is positioned to be supported by the locking portion 134a, the ring member 134 is prevented from falling toward the communication flow path 123.

When the shape of the ring member 134 is deformed, the closing member 135 may be moved toward the interior of the communication passage 123, specifically, the closing member 135 located at the upper end of the ring member 134 is Stem housing 120 to freely fall in the direction of gravity past the hole formed in the center of the ring member 134 to close the communication flow path 123, so that the contents in the receiving space 14 of the housing 10 does not leak out Will be able to close it.

On the other hand, the cantilever portion 132 may be made of a plastically deformable material when the injection vessel reaches an overpressure state, as shown in FIG. 10, when the temperature inside the accommodation space reaches a specific temperature, the cantilever portion 132 ) Is plastically deformed by an external force applied by the ring member 134, and thus may be bent in a direction away from the inner center of the body 131.

12 is a view illustrating a state in which the flow path blocking valve 130 is inserted into the communication passage 123, and the closing member 135 is inserted into the communication passage 123.

The flow path blocking valve 130 of the injection container according to the present invention may be positioned vertically in the longitudinal direction when the injection container is combined with the injection container receiving portion of the gas range. Thus, the closing member 135 accommodated in the receiving space 14 is supported by the ring member 134 its position.

Due to the overpressure, the temperature of the receiving space 14 rises, and thus, when the ring member 134 rises above a certain temperature, the diameter is deformed so as to increase the external force to the cantilever portion 132, the cantilever The portion 132 may be bent.

At this time, since the diameter of the central portion of the ring member 134 is increased, the closing member 135 is released from the ring member to move in the direction toward gravity, thereby closing the interior of the communication passage 123. Therefore, since the contents (for example, gas) inside the accommodation space 14 cannot flow to the inlet of the communication passage 123, the inside of the accommodation space can be prevented from being overpressured.

In the above, the overpressure release mechanism of the flow path blocking valve according to the present invention has been described. Through this, the present invention can block the explosion of the injection vessel by the overpressure of the injection vessel, by blocking the outflow of gas to the outside, it is possible to block the possibility of explosion from the outside.

According to the injection container and its valve assembly according to the present invention, when the temperature inside the injection container becomes high, by blocking the flow path through the flow path blocking valve, the overpressure of the injection container can be eliminated, and the malfunction due to the overpressure is prevented in advance. can do.

In addition, the flow path blocking valve according to the present invention may be bent as the temperature inside the injection container is increased, thereby blocking the flow path of the communication flow path by the closing member, thereby enabling a more accurate gas shutoff mechanism. In addition, the flow path blocking valve according to the present invention can prevent the explosion or fire by not leaking the gas inside the injection vessel to the outside.

Not limited to the configuration and method of the above-described embodiments, the above embodiments may be configured by selectively combining all or part of the embodiments so that various modifications may be made.

10 housing 11 body
12: lower sealing cap 13: upper sealing cap
14: accommodation space 15: mount cup
151: protrusion 152: locking portion
153: notch groove 154: through hole
100: valve assembly
110 valve stem 111 opening and closing member
112: exhaust hole 113: orifice
120: stem housing 121: mounting portion
1211: hollow portion 122: valve spring
123: communication path 1231: first communication path
1232: second communication passage 130: flow path blocking valve
131: body 132: forearm
132a: locking portion 132b: support portion
134: ring member 135: closure member

Claims (11)

A housing having an upper sealing cap sealing the upper portion and a receiving space for accommodating the contents;
A mount cup mounted to the upper sealing cap and having a through hole formed at a center thereof;
A stem housing having a hollow portion formed therein and having a mounting portion mounted to the mount cup, and a communication flow passage so that the hollow portion and the receiving space communicate with each other;
A valve stem installed through the through hole and slidable in the hollow portion, the valve stem having an orifice configured to selectively communicate with the hollow portion by sliding; And
It includes a flow path blocking valve formed to block the inlet of the communication flow path,
The flow path blocking valve,
A body having at least one cantilever shape formed in a cantilever shape, the body being formed in a cylindrical shape and installed to be inserted into an inlet of the communication passage;
A closure member accommodated in the body; And
One side is supported by a locking portion protruding from the cantilever portion, the other side includes a ring member which is installed to contact the closure member,
When the ring member is above a predetermined temperature, the closing member is deformed to pass through the center of the ring member, the closing member is characterized in that the injection member is moved toward the interior of the communication passage. The method of claim 1,
The lower end of the ring member is in contact with the engaging portion, the upper end of the ring member is disposed in contact with the closure member is characterized in that the injection vessel is characterized in that the movement in the direction of gravity is limited. The method of claim 1,
The closing member is released by the deformation of the ring member, the engaging with the forearm is released, the injection vessel is characterized in that it is inserted into the communication passage after moving toward the inlet of the communication passage. . The method of claim 1,
One side of the cantilever portion, protruding from the inner circumferential surface of the body to correspond to the outer surface shape of the closure member, the injection vessel characterized in that the support is formed so that the position of the closure member is fixed. The method of claim 1,
The ring member is formed in an annular shape in which one side is cut open so that both ends are spaced apart from each other, and when the internal temperature is above a predetermined temperature, the injection vessel characterized in that the deformation to apply an external force in the radial direction. The method of claim 5,
The ring member, the injection vessel characterized in that the shape memory alloy is deformed when the temperature is more than the predetermined temperature. The method of claim 1,
The locking portion, the injection vessel characterized in that formed on one end of the cantilever portion adjacent to the inlet of the communication passage. The method of claim 1,
The cantilever portion, the injection vessel, characterized in that made of a material capable of thermal deformation to bend above a certain temperature. The method of claim 1,
Injecting vessel, characterized in that the closing member inside the body is disposed inside the ring member. The method of claim 1,
The body, the injection vessel characterized in that the one side of the inner peripheral surface is connected to the inlet of the communication passage, the other side is connected to the receiving space so that the communication flow path is closed by the movement of the closing member. In the valve assembly mounted to the mount cup fixed to the top of the housing,
A stem housing having a hollow portion therein and having a mounting portion mounted to the mount cup, and a communication passage communicating the hollow portion and the receiving space;
One side penetrates through the central portion of the mount cup and the other side is slidably disposed in the hollow portion, the valve stem having an orifice selectively communicated with the hollow portion by the sliding; And
A flow path blocking valve part inserted into at least a portion of the communication flow path to block an inlet of the communication flow path,
The flow path blocking valve unit,
A body having at least one cantilever shape formed in a cantilever shape, the body being formed in a cylindrical shape and installed to be inserted into an inlet of the communication passage;
A closure member accommodated in the body; And
One side is supported by a locking portion protruding from the cantilever portion, the other side includes a ring member which is installed to contact the closure member,
And the ring member is deformed so as to pass through the center of the ring member when the ring member is above a predetermined temperature, so that the closing member is moved toward the inside of the communication passage.

Images