KR101998024B1 - Aerosol can having overpressure protector and valve assembly thereof - Google Patents

Abstract

The present invention relates to a spraying container for releasing an overpressure state comprising: a housing which includes an upper sealing cap for sealing an upper part, and a storing space which stores contents; a mount cup which is mounted in the upper sealing cap, and includes a penetrating hole formed in the center part and an outlet which is separated from the penetrating hole; a stem housing which includes a mounting unit which includes a hollow part inside and is mounted in the mount cup, and a communicating flow path which communicates with the hollow part and the storing space; a valve stem which allows one side to penetrate the penetrating hole, allows the other side to be slid to the hollow part, and includes an orifice which selectively communicates with the hollow part by sliding; and a flow path blocking valve which blocks an inlet of the communicating flow path. The flow path blocking valve includes a cylindrical body which includes at least one cantilever unit formed in a cantilever shape and is inserted into the inlet of the communicating flow path; a closing member which is stored inside the body; a spring which is arranged inside the body and applies external force to one direction of the closing member; and a hooking unit which protrudes from the cantilever unit to hook movement of the closing member in one direction. The present invention releases hooking of the closing member when temperature rises above a certain temperature by bending of the cantilever unit.

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 that allows the content to be injected to the outside using an internal pressure while the content to be injected (fluid or gas) is sealed in 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 intended to propose a structure and mechanism that does not leak the gas of the injection vessel to the outside, and can prevent an overpressure state.

SUMMARY OF THE INVENTION An object of the present invention is to provide an injection container and a valve assembly thereof having a different type of overpressure release mechanism and capable of releasing the overpressure before a malfunction due to overpressure occurs.

Still another object of the present invention is to prevent the risk of a safety accident by not letting out the gas inside the injection container to the outside.

According to the present invention, an upper sealing cap for sealing an upper portion, a housing having an accommodation space for accommodating contents therein, a through hole mounted in the upper sealing cap, and formed in a central portion thereof, are spaced apart from the through hole. A stem housing having a mount cup having a discharge port disposed to be disposed so as to have 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 with one side penetrating the through hole. The other side is slidably disposed in the hollow portion, and includes a valve stem having an orifice in communication with the hollow portion selectively by the sliding and a flow path blocking valve formed to block an inlet of the communication flow path. The shutoff valve includes at least one cantilever portion formed in a cantilever shape, and The body is formed in a cylindrical shape to be inserted into the inlet and the closing member accommodated in the body and the spring is disposed inside the body, the closure member is formed to apply an external force to the closure member in one direction is the one-way movement It includes a locking portion protruding from the cantilever portion so as to be locked, and when the temperature reaches more than a certain temperature by the bending of the forearm portion, the locking member is released.

In one embodiment, the closing member is characterized by the movement toward the inlet of the communication flow path to close the inlet of the communication flow path, when the locking member is released by the bending of the cantilever.

In one embodiment, the body is characterized in that it further comprises a plurality of grooves spaced apart in the circumferential direction along the outer circumferential surface of the body to form the at least one cantilever, concave in the radial direction from the outer circumferential surface.

In one embodiment, the cantilever portion is characterized in that it is made of a material that can be thermally deformed to be bent at a specific temperature or more.

In one embodiment, the forearm is polyoxymethylene (POM, Poly-Oxy-Methylene), polyethylene (PE, Polyethylene), polypropylene (PP, Polypropylene), polystyrene (PS, Plystylene), polyvinyl chloride (PVC, Polyvinychloride), ABS resin (Acrylonitrile Butadien styrene Resin), Polyamide (PA, Polyamide), Polycarbonate (PC, Polycarbonate), Polyphenylsulfide (PPS, Polyphenylesulfied), Polyetherketone (PEEK, Polyetheretherketone), Polytetrafluoromethylene (PTFE, Polytetrafluoroethylene) is characterized in that the material of any one.

In one embodiment, the locking portion is characterized in that disposed on one end of the cantilever portion adjacent to the inlet of the communication flow path.

In one embodiment, the flow path blocking valve further comprises a support for fixing the position of the spring so that the spring expands in one direction.

In one embodiment, the support portion is disposed to be spaced apart from the protrusion, characterized in that the inner circumferential surface of the body is formed to protrude toward the inside of the body.

In one embodiment, the portion in which the flow path blocking valve is inserted in the communication flow path is disposed in the gravity direction when the injection container is mounted to an external device so that the closing member moves in the gravity direction by releasing the locking. It is characterized by.

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; The housing and one side penetrates the center portion of the mount cup and the other side is slidably disposed in the hollow portion, and the valve stem having an orifice selectively communicated with the hollow portion by the sliding and the inlet of the communication passage. And a flow path blocking valve formed to cut off, wherein the flow path blocking valve has at least one cantilever portion formed in a cantilever shape, and is closed in a body formed in a cylindrical shape so as to be inserted into an inlet of the communication flow path. It is disposed inside the member and the body, one direction to the closure member The spring and the blocking member is formed to apply an external force to include a locking portion protruding from the cantilever portion so that the one-way movement is caught, and the locking member is released when the temperature is above a certain temperature by the bending of the forearm portion. It is done.

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 is bent as the temperature inside the injection vessel is increased, thereby blocking the flow path of the communication flow path by the closing member, it can have the effect of operating a more accurate gas blocking mechanism. have.

In addition, the flow path blocking valve part according to the present invention can prevent the explosion or fire by not leaking the gas inside the injection vessel to the outside.

Figure 1a is a cross-sectional view showing a spray container equipped with a valve assembly according to an embodiment of the present invention.
Figure 1b is a cross-sectional view showing a spray container equipped with a valve assembly according to another embodiment of the present invention.
FIG. 2 is a perspective view illustrating a valve assembly mounted on the mount cup of FIG. 1. FIG.
3 is a bottom perspective view of the valve assembly of FIG. 2 viewed from below;
4 is a cross-sectional view taken along line AA of FIG. 2.
FIG. 5 is an enlarged view of B in FIG. 4.
6 is a conceptual diagram illustrating a flow path blocking valve according to the present invention.
7 is a conceptual view showing a state in which the injection container according to the present invention is mounted to the injection container receiving portion of the gas range.
FIG. 8 is an enlarged view enlarging C of FIG. 7.
9 to 13 are conceptual views illustrating the overpressure release mechanism according to the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, the injection container which concerns on this invention, and its valve assembly are demonstrated in detail with reference to drawings. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In the following description of the embodiments disclosed herein, if it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted.

Figure 1a is a cross-sectional view showing a spray container equipped with a valve assembly according to an embodiment of the present invention. Figure 1b is a cross-sectional view showing a spray container equipped with a valve assembly according to another embodiment of the present invention.

In FIG. 1A and FIG. 1B, the middle portion of the longitudinal side of the injecting vessel is irrelevant to the features of the present invention and has been omitted by two incisions because it is deemed unnecessary in the description of the present invention. Only a part of the side is omitted, in fact, each side of the injection vessel is extended in the vertical direction and connected to each other.

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 of description, the operation method of the valve assembly 100 based on the injection container according to FIG. 1A will be described, but the present invention is not limited thereto and may be applied to the injection container according to FIG. 1B. It will be apparent to those skilled in the art.

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

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 surface of the protruding portion 151 of the mount cup 15 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 to be laid horizontally in the spray container receiving portion of the gas range (or external device), the notch groove 153 of the mount cup 15 faces upwardly of the spray container receiving portion and the stem housing ( The second communication passage part 1232 of 120 is also disposed 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 receiving 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 further include a flow path blocking valve 130 formed to block the inlet of the communication flow path of the stem housing in order to relieve the overpressure of the receiving space (14). Hereinafter, the flow path blocking valve will be described in detail with reference to FIGS. 6 to 13.

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.

1 to 4, the flow path blocking portion 140 according to the present invention may be inserted into the valve assembly 100 to prevent overpressure in the accommodation space 14.

Referring to FIG. 6, the flow path blocking valve 130 is inserted in parallel to the communication flow path 123 of the stem housing 120 to selectively close a point of a passage through which gas in the accommodation space 14 is discharged to the outside. It can be formed to.

The portion of the communication passage 123 into which the flow path blocking valve 130 is inserted is disposed in the direction of gravity so that the closing member 133 moves in the direction of gravity by releasing the catch when the injection container is mounted on the external device. It may be part of the second communication passage 1232.

Specifically, as illustrated in FIG. 7, the flow path blocking valve 130 is notched in the notch groove 153 of the mount cup 15 when the injection container is mounted to be laid horizontally on the injection container accommodation part of the gas range (or external device). ) Is directed upward and the second communication flow path 1232 of the stem housing 120 also faces 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). Therefore, the flow path blocking valve 130 is disposed in the direction of gravity, and the closing member 133 located inside the flow path blocking valve 130 may be moved toward the inlet by gravity when the locking is released.

Hereinafter, the flow path blocking valve 130 will be described in more detail. 6 to 8, the flow path blocking valve 130 according to the present invention may include a body 131, a closing member 135, and a spring 134.

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

On the outer circumferential surface of the body 131, a plurality of protrusions 131a may be spaced apart from each other so as to fit in the communication passage 123. The plurality of protrusions 131a may be formed to fix a position when the flow path blocking valve 130 is inserted into the communication flow path 123. Thus, the plurality of protrusions 131a may be formed to contact the inner circumferential surface of the communication passage 123. Through the spaces between the plurality of protrusions 131a, the contents in the accommodation space 14 may be moved to the communication passage 123 of the stem housing 120.

The body 131 is disposed to be spaced apart in the circumferential direction along the outer circumferential surface, and divided by the plurality of grooves 133 and the plurality of grooves 133 formed concave in the radial direction, and at least one formed in a cantilever shape. The arm 132 may be provided. The groove 133 and the forearm 132 may extend along the longitudinal direction of the body 131.

The forearm 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 Polyviny chloride (PVC), ABS resin (Acrylonitrile Butadien styrene Resin), polyamide (PA, Polyamide), polycarbonate (PC, Polycarbonate), polyphenylsulfide (PPS, Polyphenylesulfied), polyether ketone (PEEK, Polyetheretherketone) , Polytetrafluoromethylene (PTFE, Polytetrafluoroethylene) and the like.

The arm 132 may include a locking part 132a such that the closing member 133 accommodated in the body 131 is moved in one direction. The one direction may be a gravity direction.

The locking portion 132a may have a shape protruding from the cantilever portion 132. For example, the locking portion 132a may have a shape in which a part of the inner circumferential surface of the arm 132 is curved toward the center of the body 131. Alternatively, the locking portion 132a may be formed to protrude 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. Therefore, the locking portion 132a may limit the movement of the closing member 134 toward the inlet of the communication passage 123.

The locking portion 132a may have a curved shape protruding in a round shape so that the closing member 135 is moved flexibly. On the other hand, the shape of the locking portion 132a may protrude in various forms such as trapezoidal, triangular, etc. in addition to the rounded shape.

The closing member 135 is accommodated in the body 131 and may be formed to be movable within the body. The closing member 135 may be a spherical ball or steel ball. On the other hand, it is apparent to those skilled in the art that 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 diameter of the closing member 135 may be formed to have a diameter larger than the diameter of the inlet of the communication passage 123 to close the inlet of the communication passage 123 without entering into the communication passage 123. have. Thus, the closing member 135 may close the inlet of the communication passage 123. In addition, the diameter of the closing member 135 may have a predetermined size to be locked by the locking portion (132a).

The closing member 135 may be locked by the locking portion 132a formed in the cantilever 132 to lock (or limit) movement of the inside of the body. The closing member 135 is moved so that it does not reach the inlet of the communication passage 123, and thus the inlet of the communication passage 123 is opened. Therefore, the gas of the accommodating part 14 flows into the communication flow path 123.

The spring 134 is disposed inside the body and may be formed to apply an external force (ie, an elastic force) to the closure member 135 in one direction. The inner circumferential surface of the body 131 may further include a support part 132b for fixing the position of the spring 134 so that the spring 134 expands in one direction.

The support part 132b may be formed to fix one end of both ends of the spring 134. One end of the spring 132 may be fixed to the support 132b by a contact material. Therefore, the spring 132 may have an elastic force in one direction from the one end fixed by the support 132b toward the other end.

The support part 132b is spaced apart from the locking part 132a such that the closing member 135 and the spring 134 are located in a space between the locking part 132a and the support part 132b. In addition, the inner peripheral surface of the body 131 of the support part 132b may be formed to protrude toward the center of the body 131. At this time, the support portion 132b may be formed so as not to block the hollow portion of the body in order to move the contents in the accommodation space.

The other end of the spring 134 fixed by the support part 132b is not in contact with the closing member 135, and in the compressed state, the spring 134 may apply an external force in one direction to the closing member 135. Can be. One direction is a direction in which the spring 134 is expanded, and is a direction from the support part 132b toward the locking part 132a. By the force applied to the closing member 135, the closing member 135 may apply an external force to the locking portion (132a).

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

The spray container according to the present invention may reach an overpressure state for thermal, mechanical or chemical reasons during use or storage. In this case, the flow path blocking valve 130 may have contents in the receiving space 14 of the housing 10 leaked to the outside. The stem housing 120 may be closed so as not to.

Specifically, referring to FIG. 9, the closing member 135 accommodated in the flow path blocking valve 130 according to the present invention may continuously receive the elastic force a in one direction by the spring 134. The closing member 135 may be moved in the one direction by the elastic force (a). However, since the closing member 135 is locked by the locking portion 132a, the locking member 132a exerts an external force b in a direction away from the inner center of the body 131.

The locking portion 132a is not deformed under a specific temperature. Therefore, the locking portion 132a is not bent or opened by the external force b at or below a specific temperature. Therefore, below a certain temperature, the movement of the closure member 135 may be limited.

On the other hand, the cantilever portion 132 is made of a material capable of plastic deformation when the injection vessel reaches an overpressure state. Thus, referring to FIG. 10, when the temperature inside the accommodation space reaches a specific temperature, the arm 132 may be plastically deformed by an external force b applied by the closing member 135. Specifically, the cantilever 132 may be bent in a direction away from the inner center of the body 131.

10 and 11, the closing member 135 may move in a direction in which the elastic force a is applied when the catch is released by the bending of the arm 132. Therefore, the closing member 135 reaches the inlet of the communication passage 123, and thus the inlet of the communication passage 123 is blocked.

In the above described the movement of the closing member of the flow path blocking valve 130 according to the present invention. Hereinafter, the overpressure release mechanism of the flow path blocking valve 130 according to the present invention will be described with reference to FIGS. 12 to 13.

12 and 13 are conceptual views illustrating a state in which the flow path blocking valve 130 is inserted into the communication flow path 123.

Referring to FIG. 12, 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 accommodation portion of the gas range. Thus, the closing member 135 accommodated in the receiving space 14 is simultaneously subjected to external force and gravity by the spring 134.

On the other hand, the closing member 135 may be caught in the direction in which the elastic force and gravity is applied by the locking portion 132a of the cantilever portion 132. As described with reference to FIGS. 9 to 11, the closing member 135 may apply an external force to the locking portion 132a so that the forearm 132 is bent.

The cantilever portion 132 is made of a material that does not change shape by an external force at a specific temperature or less. Accordingly, even when an external force is applied by the closing member 135, the cantilever portion 132 is not bent or bent. Therefore, as illustrated in FIG. 12, the contents (eg, gas) inside the accommodation space 14 may pass through the flow path blocking valve 130 and flow to the inlet of the communication flow path 123.

On the other hand, the cantilever portion 132 is over-pressured, the temperature of the accommodation space 14 rises, and when the cantilever portion 132 rises above a certain temperature, it becomes a state deformable by heat. In this case, as shown in FIG. 13, the forearm 132 may be bent by an external force applied by the closing member 135. When the forearm 132 is bent, the closing member 135 is released and moves in a direction toward the elastic force and gravity. In this case, the inlet of the communication passage 123 is closed by the closing member 135. Therefore, the contents (for example, gas) inside the accommodation space 14 cannot flow to the inlet of the communication passage 123.

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 is bent as the temperature inside the injection vessel is increased, thereby blocking the flow path of the communication flow path by the closing member, it can have the effect of operating a more accurate gas blocking mechanism. have.

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.

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: spring 135: closure member

Claims (10)

A housing having an upper sealing cap for sealing an upper portion and an accommodation space for accommodating contents therein;
A mount cup mounted to the upper sealing cap and having a through hole formed at a center portion thereof, and a discharge hole spaced apart from the through hole;
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;
A valve stem having one side penetrating the through hole and the other side slidably disposed at the hollow portion, the orifice being selectively communicated with the hollow portion by the 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 formed in the shape of a cantilever and having a cylindrical shape to be inserted into an inlet of the communication passage;
A closure member accommodated in the body;
A spring disposed inside the body and configured to apply an external force to the closure member in one direction; And
The closing member includes a locking portion protruding from the cantilever portion to lock the one-way movement,
Injection container characterized in that the locking of the closing member is released when the temperature exceeds the specified temperature by the bending of the arm.
The method of claim 1,
The closure member
When the closure of the closing member is released by the bending of the cantilever portion, the injection vessel characterized in that it moves toward the inlet of the communication passage to close the inlet of the communication passage.
The method of claim 1,
The body is
And a plurality of grooves spaced apart in the circumferential direction along the outer circumferential surface of the body so as to form the at least one cantilever portion, and recessed in the radial direction from the outer circumferential surface.
The method of claim 1,
The forearm is
Injection container characterized in that the heat deformation is made of a material capable of bending above a certain temperature.
The method of claim 4, wherein
The forearm is
Polyoxymethylene (POM, Poly-Oxy-Methylene), Polyethylene (PE, Polyethylene), Polypropylene (PP, Polypropylene), Polystyrene (PS, Plystylene), Polyvinyl chloride (PVC, Polyvinychloride), ABS resin (Acrylonitrile Butadien styrene Resin), polyamide (PA, Polyamide), polycarbonate (PC, Polycarbonate), polyphenylsulfide (PPS, Polyphenylesulfied), polyether ketone (PEEK, Polyetheretherketone), polytetrafluoromethylene (PTFE, Polytetrafluoroethylene) Injection container characterized in that the material.
The method of claim 1,
The locking portion
Injecting vessel, characterized in that disposed on one end of the cantilever portion adjacent to the inlet of the communication passage.
The method of claim 1,
The flow path blocking valve,
And a support for fixing the position of the spring so that the spring expands in one direction.
The method of claim 7, wherein
The support portion,
It is disposed to be spaced apart from the locking portion, the injection vessel characterized in that the inner peripheral surface of the body is formed in a shape projecting toward the inside of the body.
The method of claim 1,
A portion of the communication passage in which the flow path blocking valve is inserted is disposed in the direction of gravity when the injection container is mounted on an external device so that the closing member moves in the direction of gravity by releasing the locking. .
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
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 formed in the shape of a cantilever and having a cylindrical shape to be inserted into an inlet of the communication passage;
A closure member accommodated in the body;
A spring disposed inside the body and configured to apply an external force to the closure member in one direction; And
And a locking portion protruding from the cantilever portion such that the closing member locks the one-way movement.
The valve assembly, characterized in that the closing of the closing member is released when the temperature exceeds the specified temperature by the bending of the arm.

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