KR100903787B1 - Injection vessel with overpressure relief - Google Patents

Abstract

The present invention provides a spray container for selectively spraying the contents contained in the housing by the user's operation, when the overpressure is applied to the inside of the housing is provided with an overpressure release device that can eliminate the overpressure state without the user's operation It provides a spray container.

Description

SPRAYING CAN ENABLE TO RELIEVE OVER-PRESSURE STATE}

The present invention relates to a spray container having an overpressure releasing device for relieving the overpressure inside a housing containing the contents to be sprayed without the need for user manipulation.

In general, the injection container is filled with the contents to be injected (fluid or gas) inside the housing and sealed with the injection gas (propellant or propellant gas), so that the contents can be injected to the outside using the pressure of the injection gas. Say courage to do.

Frequently, gas such as freon, carbon dioxide, nitrogen and oxygen is used as the injection gas, and typical examples of such injection vessels include portable gas containers, spray mosquito repellents, hair sprays, portable aerosol fire extinguishers, and gas lighter containers.

Since the injection container uses gas filled therein to eject the contents, a certain amount of impact or heat is applied from the outside, so that the gas filled inside is easily vaporized and becomes overpressured due to expansion of the container. There is a risk of rupture with deformation of the container.

Therefore, researches for solving such an overpressure state by the self-constitution of the spray container regardless of the user's operation have been conducted.

One object of the present invention is to provide a spray container having an overpressure releasing device of a type different from the conventional one.

Another object of the present invention is to provide an injection container capable of easily eliminating the overpressure state by moving only the configuration for closing the gas discharge passage even when the injection container is mounted in another apparatus.

Another object of the present invention is to move only the configuration for sealing as described above, it is to lower the level of pressure to operate the overpressure release device.

The spray container according to an embodiment of the present invention for realizing the above object is a housing formed with an inner space that can accommodate the contents to be sprayed, and a nozzle assembly mounted to the housing so that the contents are sprayed to the outside during operation It includes.

The nozzle assembly includes a nozzle body, a valve stem and an opening and closing member. The nozzle body is disposed in the inner space, and a space portion through which the contents flow. The valve stem is elastically movable while being supported by the first elastic body in the space portion of the nozzle body, and has an inner passage allowing the space portion to communicate with the outside of the container, and the gas for the housing. It is arranged to form a gap where flow is possible. The opening / closing member is capable of elastically relative sliding movement while being supported by the second elastic body from the first position blocking the inlet of the passage in the movement section formed on the outer periphery of the valve stem to the second position away from the inlet. It is mounted and relatively moved by the overpressure formed in the inner space to open the passage. The gap is in communication with the internal space as the opening and closing member is moved up relative to the support jaw of the nozzle body.

The opening and closing member may be slidably mounted in an axial direction of the valve stem while surrounding the outer circumference of the valve stem.

The outer periphery of the valve stem may be formed with a movement guide portion of the shape recessed along the axial direction to form the movement section.

An inlet constituting a portion of the passage may be formed in the valve stem in communication with the movement guide portion, and may be opened by the opening and closing member when the passage is opened.

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The injection container may further include a cover member coupled to the opening and closing member to support and guide the second elastic body.

As the injection container according to the present invention configured as described above is provided with the opening and closing member so as to be relatively movable with respect to the valve stem, even when the valve stem cannot be moved by interference with other devices, the opening and closing member is moved to solve the overpressure state. It is possible to open the injection passage for.

In addition, since it is also possible to move only the opening and closing member as described above, the overpressure at a low level enough to move the opening and closing member may be immediately eliminated. As a result, the degree of overpressure formed inside the housing is further lowered, so that the stability of the container can be enhanced.

Hereinafter, with reference to the accompanying drawings, a spray container having an overpressure release function according to a preferred embodiment of the present invention will be described in detail.

1 is a longitudinal sectional view of an injection container according to an embodiment of the present invention.

Referring to FIG. 1, the spray container includes a housing 100 and a nozzle assembly 200.

The housing 100 includes a body 110 having an internal space S configured to accommodate contents and injection gas, and lower and upper sealing caps 120 and 130 for sealing both ends of the body 110, respectively. do. The lower sealing cap 120 may have a curved shape toward the inner space S in order to be deformed to enlarge the volume of the inner space S when a certain level of overpressure is applied to the inner space S. . The support member 140 for supporting the nozzle assembly 200 is coupled to the upper sealing cap 130.

The nozzle assembly 200 is disposed in the support member 140 with one end disposed in the inner space S and the other end exposed to the outside of the housing 100, and the user presses the inner space S. The contents filled in are selectively sprayed to the outside.

2 is a cross-sectional view for describing a non-operational state of the nozzle assembly 200 of FIG. 1.

Referring to FIG. 2, the nozzle assembly 200 includes a nozzle body 210, a valve stem 220, and an opening / closing member 230.

The nozzle body 210 may be a hollow body disposed in the internal space S of the housing 100. The hollow portion of the nozzle body 210 is a space in which the contents and the like flow, specifically, the space 212 in which the inlet passage 211 and the valve stem 220 into which the contents are introduced from the internal space S is disposed. It includes. The gap between the nozzle body 210 and the support member 140 is blocked by the sealing material 280.

The valve stem 220 is disposed in the space portion 212 to be movable along its axial direction. The valve stem 220 is elastically supported by the first elastic body 240 supported by a portion of the nozzle body 210, and moves against or with the help of the elastic force.

The valve stem 220 also has a predetermined space therein to allow the contents to flow. Specifically, the space may be a passage for the flow of the contents formed by the inlet 221 opened on the outer circumference of the valve stem 220 and the outlet passage 222 communicating with the outside of the housing 100. have. Thereby, the inflow path 211 is connected to the outflow path 222 via the inlet 221, so that the internal space (S) is in communication with the outside.

The opening / closing member 230 is mounted to be movable relative to the valve stem 220, and opens and closes an outlet passage such as the contents while moving together with the valve stem 220 or independently of the valve stem 220. .

The opening and closing member 230 may be configured to slide along the axial direction of the valve stem 220 while surrounding the outer circumference of the valve stem 220. In this case, the movement guide part 260 may be formed in the outer circumference of the valve stem 220 in the axial direction while being recessed. Both ends of the sliding distance of the opening and closing member 230 are also defined by both ends of the movement guide part 260. Inlet 221 is formed in a portion of the movement guide 260, it is blocked when the opening and closing member 230 is located in the portion.

The movement of the opening / closing member 230 is performed against or elastically by the second elastic body 250 having one end supported by the supporting member 140. In order to guide the second elastic body 250, the cover member 270 may be coupled to the opening and closing member 230. One end of the cover member 370 protrudes along the axial direction to guide the elastic deformation of the second elastic body 250. The opening / closing member 230 is pressed by the second elastic member 250 to be supported by the support jaw 213 formed on the nozzle body 210 in the inoperative state of the nozzle body 210.

In this non-operating state, since the opening and closing member 230 blocks the inlet 221, the contents introduced through the inlet path 211 in the internal space S do not leak to the outside.

3 is a cross-sectional view for describing a case in which the valve stem 220 is pressed.

Referring to this drawing, when the valve stem 220 is pressed by a user's operation or the like, the valve stem 220 moves in a direction (lower direction in the drawing) closer to the inflow path 211. However, the opening and closing member 230 is caught by the support jaw 213 and can not move downward together to maintain the position.

As a result, the opening and closing member 230 is moved relative to the valve stem 220 to move away from the inlet 221, the inlet 221 is opened. The contents and the like introduced into the open inlet 221 are sprayed to the outside through the outflow passage 222, so that a predetermined purpose (content injection) using the spray container is achieved.

4 is a cross-sectional view illustrating a case in which the valve stem 220 and the opening and closing member 230 are raised together when an overpressure occurs in the internal space S, and FIG. 5 is an enlarged cross-sectional view of a portion A of FIG. 4.

Referring to these drawings, as the overpressure generated in the internal space S is transmitted to the valve stem 220 through the inflow path 211, the valve stem 220 and the opening and closing member 230 is raised together. The opening and closing member 230 may move relative to the elastic force of the second elastic body 250 but may not move relative to the valve stem 220. In this case, the inlet 221 may not be opened by the opening and closing member 230. Do not.

Even if the inlet 221 is not opened, the overpressure gas is discharged into a gap between the valve stem 220 and the support member 140 through a passage between the opening and closing member 230 and the nozzle body 210, thereby allowing the internal space ( The overpressure of S) is eliminated.

FIG. 6 is a cross-sectional view illustrating a case in which only the opening / closing member 230 is raised while the valve stem 220 does not rise when an overpressure occurs in the internal space S. Referring to FIG.

Referring to this drawing, even when the valve stem 220 does not move because the degree of overpressure generated in the internal space S is not large, only the opening / closing member 230 may rise above the elastic force of the second elastic body 250. have.

As a result, since the inlet 221 is opened, the overpressure gas is discharged to the outside via the outlet passage 222, the overpressure state of the internal space (S) can be eliminated. In addition, the overpressure gas may be discharged into a gap between the valve stem 220 and the support member 140 through a passage between the opening and closing member 230 and the nozzle body 210.

As such, since the overpressure may be eliminated even by the movement of the opening and closing member 230 irrespective of the valve stem 220, the opening and closing member 230 moves and moves inside even when the valve stem 220 is not moved. The overpressure state of the space S can be eliminated.

In addition, as the opening and closing member 230 operates independently of the valve stem 220 even in an overpressure state that is lower than the movement of the valve stem 220 and the opening and closing member 230 at the same time, a low level of overpressure is also released early. Stability from overpressure of the injection vessel can be enhanced.

FIG. 7 is a cross-sectional view illustrating a case in which only the opening / closing member 230 is raised when an overpressure occurs in the internal space S when the valve stem 220 is pressed.

Referring to this figure, despite the overpressure generated in the internal space (S), the valve stem 220 may be limited in movement by an external device equipped with an injection container, for example, a governor of a gas burner. Even in this case, the opening / closing member 230 may be elevated to overcome the elastic force of the second elastic body 250 as it is movably coupled to the valve stem 220.

At this time, the path connecting the inlet 221 and the outflow path 222 is a passage through which the gas is supplied to the gas burner, etc., and thus, an overpressure state of the internal space S that is additionally generated cannot be solved.

However, since a new flow path is opened between the support jaw 213 and the opening / closing member 230 due to the elevation of the opening / closing member 230, the overpressure gas passes through the space portion 212 to support member 140 and the valve stem 220. Discharged to the outside by the gap between the), the overpressure state of the internal space (S) can be eliminated.

As such, since the overpressure may be solved even by the movement of the opening / closing member 230 irrespective of the valve stem 220, the valve stem 220 may not move so that the overpressure of the internal space S is not resolved. Nothing can be done. Therefore, even when the valve stem 220 cannot move, stability from overpressure of the injection vessel can be secured.

Such a spray container is not limited to the configuration and manner of operation of the embodiments described above. The above embodiments may be configured such that various modifications may be made by selectively combining all or part of the embodiments.

1 is a longitudinal cross-sectional view of an injection container according to an embodiment of the present invention,

2 is a cross-sectional view illustrating a non-operational state of the nozzle assembly of FIG. 1;

3 is a cross-sectional view illustrating a case where the valve stem is pressed,

4 is a cross-sectional view illustrating a case in which the valve stem and the opening and closing member move together when an overpressure occurs in an internal space.

5 is an enlarged cross-sectional view of a portion of FIG. 4;

6 is a cross-sectional view illustrating a case in which only the opening / closing member moves when an overpressure occurs in an internal space.

FIG. 7 is a cross-sectional view for describing a case in which only the opening / closing member is raised when an overpressure occurs in the internal space when the valve stem is pressed.

Claims (7)

A housing having an inner space capable of containing contents to be sprayed; And a nozzle assembly mounted to the housing to allow the contents to be ejected to the outside during operation. The nozzle assembly, A nozzle body coupled to the housing to be disposed in the inner space and having a space portion in which the contents can flow; A space that is elastically movable while being supported by the first elastic body in the space portion of the nozzle body, the space portion has an internal passage which communicates with the outside of the container, and the clearance which allows gas flow to the housing A valve stem disposed to form a; And Mounted relative to the sliding movement elastically while being supported by the second elastic body from the first position blocking the inlet of the passage in the movement section formed on the outer periphery of the valve stem to the second position deviating from the inlet; It includes an opening and closing member for relatively moving by the overpressure formed in the interior space to open the passage, And the clearance is in communication with the internal space as the opening and closing member is moved upward with respect to the support jaw of the nozzle body. The method of claim 1, The opening and closing member is a spray container having an overpressure release function characterized in that it is mounted so as to slide in the axial direction of the valve stem while surrounding the outer periphery of the valve stem. The method of claim 2, An injection vessel having an overpressure release function, characterized in that the movement guide portion is formed in the outer periphery of the valve stem is formed along the axial direction to form the movement section. The method of claim 1, And a cover member coupled to the opening / closing member, the cover member supporting and guiding the second elastic body. The method according to any one of claims 1 to 4, Injection container having an overpressure release function, characterized in that the jaw is not formed in the moving section. delete delete

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