Aerosol valve and aerosol spray device

Abstract

The present invention discloses an aerosol valve and an aerosol spraying device. The aerosol valve is used in the aerosol spraying device and includes a valve body connected to a sealing cup. The valve body defines a valve chamber for receiving liquid from an aerosol tank. A valve stem, the upper end of which passes through the sealing cup, is slidably mounted within the valve chamber. The valve stem defines a spray chamber. Between the valve body and the valve stem, an air supply mechanism is provided for allowing compressed gas from the aerosol tank to enter the spray chamber when the valve stem slides downward, and a liquid supply mechanism is provided for allowing liquid from the aerosol tank to enter the spray chamber from the valve chamber. The spray chamber defines a flow guide mechanism for guiding the liquid and compressed gas to mix and discharge the liquid. The aerosol spraying device includes an aerosol tank having an opening and an actuator inserted into the upper end of the valve stem for spraying the liquid in a mist. The aerosol tank has a rim at its opening, and the sealing cup has a connecting flange that engages with the rim to secure the aerosol valve to the aerosol tank.

Description

[Technical Field]

[0001] The present invention relates to the technical field of aerosol products, and more particularly to an aerosol valve and an aerosol spray device using the aerosol valve. [Background technology]

[0002] Over the course of its development over more than half a century, the aerosol industry has experienced two major influences. The first occurred in the 1970s and continued until the mid-1980s, when the Montreal Protocol, signed in 1987, prohibited the use of chlorofluorocarbons (CFCs) in aerosols. As a replacement, petrochemical gases, primarily liquefied petroleum gas (LPG) and dimethyl ether (DME), became the new propellant sources for aerosols. The second influence, which followed, sparked debate over whether to reduce or even restrict the use of volatile organic compounds (VOCs) in aerosols. Because LPG and DME are VOCs themselves, they will eventually be replaced. Compressed gases, such as air, nitrogen, and carbon dioxide, are the best alternatives to propellants after the two aerosol industry influences because they are non-flammable and do not have a destructive effect on the ozone layer or the overall ecological environment.

[0003]

[0003] Currently, in aerosol tanks that use compressed gas as a propellant, the aerosol valves used in the aerosol tanks typically only serve to throttle the flow of liquid in the aerosol tank and spray it into an actuator nozzle for atomization. Such an aerosol valve structure is disclosed in a Chinese patent with application number CN201620896344.X and titled "Powder-Ejecting Aerosol Valve Structure," which typically includes a valve body connected to a sealing cup, a valve stem disposed within a cavity in the valve body, one end of the valve stem penetrating the sealing cup and the valve body, an internal sealing gasket pressed between the end of the valve body and the inner wall of the sealing cup, the internal sealing gasket fitted to one end of the valve stem to form a movable seal with the valve stem, a liquid ejection chamber disposed at one end of the valve stem, a flow-restricting hole disposed in the middle of the valve stem, and a liquid ejection gap formed by both the inner wall of the valve body cavity and the outer wall of the valve stem. By controlling the communication between the flow restriction hole in the liquid ejection flow path and the liquid ejection gap, the product can be controlled to eject the liquid. However, compressed gas generally does not have the ability to "vaporize the liquid," i.e., the phenomenon in which liquefied gas rapidly vaporizes when the liquid is ejected from the aerosol spray device. Therefore, the rapid expansion caused by this vaporization results in the formation of a fine mist, and the aerosol valve itself cannot achieve atomization. Therefore, when compressed gas is used as a propellant, aerosol products using conventional aerosol valves often encounter problems such as large spray particles and poor atomization efficiency.

[0004] Therefore, the present invention is developed in response to the above drawbacks. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention aims to solve the drawbacks of the prior art by providing an aerosol valve with a simple structure and improved atomization effect. The present invention also provides an aerosol spray device using the aerosol valve. [Means for solving the problem]

[0006] The present invention is achieved by the following technical solutions:

[0007] This aerosol valve includes a valve body 2 connected to a seal cup 1, the valve body 2 having a valve chamber 21 for receiving the liquid in the aerosol tank, a valve stem 3 having an upper end that passes through the seal cup 1 and that is slidable up and down within the valve chamber 21, an ejection chamber 31 being provided in the valve stem 3, an air supply structure 4 and a liquid supply structure 5 for allowing the compressed gas in the aerosol tank to enter the ejection chamber 31 when the valve stem 3 slides downward being provided between the valve body 2 and the valve stem 3, and a flow guide structure 6 for guiding the liquid and compressed gas within the ejection chamber 31 and mixing them before discharging them.

[0008] In the aerosol valve, the air supply structure 4 and the liquid supply structure 5 are arranged opposite each other, and the flow guide structure 6 includes a gas guide surface 61 arranged on the air supply structure 4 side and capable of guiding compressed gas in a spiral shape, and a liquid guide surface 62 arranged on the liquid supply structure 5 side and capable of guiding liquid in a spiral shape, and is characterized in that the rotation directions of the spiral compressed gas and the spiral liquid are the same, and the compressed gas and liquid are mixed in a spiral shape.

[0009] In the aerosol valve, the flow guide structure 6 is a bump in the center of the bottom wall of the ejection chamber 31, there is a gap between the outer wall of the bump and the inner wall of the ejection chamber 31, and the gas guide surface 61 and the liquid guide surface 62 are respectively provided on both sides of the bump.

[0010] In the aerosol valve, the gas guide surface 61 includes a first arc-shaped concave surface facing the air supply structure 4 and a first arc-shaped convex surface connected to the first arc-shaped concave surface, and the liquid guide surface 62 includes a second arc-shaped concave surface facing the liquid supply structure 5 and a second arc-shaped convex surface connected to the second arc-shaped concave surface.

[0011] In the aerosol valve, the air supply structure 4 is characterized by including an air supply hole 41 provided on the side wall of the valve body 2 and through which compressed gas in the aerosol tank enters, and a gas outlet 42 provided on the side wall of the valve stem 3 and which connects the air supply hole 41 with the ejection chamber 31 when the valve stem 3 slides downward.

[0012] In the aerosol valve, the air inlet 41 is characterized by including a large air inlet end 411 through which compressed gas enters, and a small air inlet end 412 which connects the large air inlet end 411 with the gas outlet 42 and has a smaller diameter than the large air inlet end 411.

[0013] In the aerosol valve, the liquid supply structure 5 is characterized by including a liquid outlet 52 provided on the side wall of the valve stem 3, which connects the valve chamber 21 and the ejection chamber 31 when the valve stem 3 slides downward.

[0014] In the aerosol valve, the gas outlet 42 and the liquid outlet 52 each include an inlet stage, an outlet stage having a smaller diameter than the inlet stage and communicating with the ejection chamber 31, and a transition stage connected between the inlet stage and the outlet stage and having a diameter that gradually decreases from the inlet stage toward the outlet stage.

[0015] In the aerosol valve, a seal gasket 8 is attached between the valve body 2 and the seal cup 1 and is movably and sealed and fitted onto the valve stem 3, the gas outlet 42 and the liquid outlet 52 are located above the seal gasket 8, and when the valve stem 3 slides downward, the gas outlet 42 moves below the seal gasket 8 to communicate with the air inlet 41, and the liquid outlet 52 moves below the seal gasket 8 to communicate with the valve chamber 21, and a spring 9 is provided within the valve chamber 21 to urge the valve stem 3 to return it to its upward position.

[0016] The aerosol spray device uses the above-mentioned aerosol valve, which includes an aerosol tank (20) having an opening, and an actuator (30) that is inserted into the upper end of the valve stem (3) and sprays the liquid in a mist, and is characterized in that a rim (201) is provided at the opening of the aerosol tank (20), and a connection flange (12) is provided on the seal cup (1) that is coupled to the rim (201) and fixes the aerosol valve to the aerosol tank (20). [Effects of the Invention]

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. In this invention, the compressed gas entering the ejection chamber from the air supply structure and the liquid entering the ejection chamber from the liquid supply structure are guided by the flow guide structure to form a two-phase flow, whereby the gas flows mix and collide with the liquid, breaking it up. This invention has a simple structure, and by performing pre-atomization prior to atomization by the actuator, the atomization effect can be improved, meeting the atomization requirements for compressed gas used as a propellant and advantageous for environmental protection.

[0019] 2. In the present invention, when compressed gas passes through the air inlet from the larger to the smaller, the gas flow rate increases, promoting dispersion of the liquid. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a perspective view of the present invention. [Figure 2] FIG. 2 is a cross-sectional view of the present invention in an initial state. [Figure 3] FIG. 2 is a cross-sectional view of the present invention in use. [Figure 4] FIG. 4 is a cross-sectional view of the AA portion of FIG. [Figure 5] FIG. 1 is an exploded view of the present invention. [Figure 6] 1 is a structural schematic diagram of an aerosol spray device equipped with an aerosol valve of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will now be further described with reference to the drawings.

[0022] 1 to 6, the aerosol valve includes a valve body 2 connected to a seal cup 1. The valve body 2 includes a valve chamber 21 for receiving the liquid in the aerosol tank. A valve stem 3, whose upper end passes through the seal cup 1, is provided within the valve chamber 21 and is capable of sliding up and down. The valve stem 3 is provided with a spray chamber 31. Between the valve body 2 and the valve stem 3, there are provided an air supply structure 4 and a liquid supply structure 5, which allow the compressed gas in the aerosol tank to enter the spray chamber 31 when the valve stem 3 slides downward. The liquid in the aerosol tank enters the spray chamber 31 from the valve chamber 21. The spray chamber 31 is provided with a flow guide structure 6 that guides the liquid and compressed gas, mixes them within the spray chamber 31, and discharges them. In the present invention, the compressed gas that enters the spray chamber from the air supply structure and the liquid that enters the spray chamber from the liquid supply structure are guided by the flow guide structure to form a two-phase flow, whereby the gas flows mix and collide with the liquid, breaking it up. The present invention has a simple structure, and can improve the atomization effect by performing pre-atomization prior to atomization by the actuator, thereby meeting the atomization requirements for compressed gases used as propellants and being environmentally friendly.

[0023] As shown in Figure 4, the air supply structure 4 and the liquid supply structure 5 are arranged opposite each other, and the flow guide structure 6 includes a gas guide surface 61 arranged on the air supply structure 4 side and capable of guiding the compressed gas in a spiral shape, and a liquid guide surface 62 arranged on the liquid supply structure 5 side and capable of guiding the liquid in a spiral shape, and the rotation directions of the spiral compressed gas and the spiral liquid are the same, and the compressed gas and the liquid are mixed in a spiral shape.

[0024] Specifically, the flow guide structure 6 is a bump in the center of the bottom wall of the ejection chamber 31, with a gap between the outer wall of the bump and the inner wall of the ejection chamber 31, and a gas guide surface 61 and a liquid guide surface 62 are provided on both sides of the bump, respectively.

[0025] Specifically, the gas guide surface 61 includes a first arc-shaped concave surface facing the air supply structure 4 and a first arc-shaped convex surface connected to the first arc-shaped concave surface, and the liquid guide surface 62 includes a second arc-shaped concave surface facing the liquid supply structure 5 and a second arc-shaped convex surface connected to the second arc-shaped concave surface. The flow guide structure 6 is a substantially S-shaped block.

[0026] The air supply structure 4 is provided in the side wall of the valve body 2 and includes an air inlet 41 through which compressed gas from the aerosol tank enters, and a gas outlet 42 is provided in the side wall of the valve stem 3 and connects the air inlet 41 to the ejection chamber 31 when the valve stem 3 slides downward. The liquid supply structure 5 is provided in the side wall of the valve stem 3 and includes a liquid outlet 52 that connects the valve chamber 21 to the ejection chamber 31 when the valve stem 3 slides downward. The gas outlet 42 and the liquid outlet 52 are provided on both sides of the flow guide structure 6, with the gas outlet 42 facing the first circular-arc concave surface of the gas guide surface 61 and the liquid outlet 52 facing the second circular-arc concave surface of the liquid guide surface 62. When the air supply hole 41 is connected to the gas outlet 42 and the valve chamber 21 is connected to the liquid outlet 52, the compressed gas and liquid are respectively ejected on both sides of the flow guide structure 6, flow along the approximately S-shaped guide surfaces of the flow guide structure 6 on both sides of the flow guide structure 6, and finally join together to form a two-phase swirling flow.

[0027] Furthermore, air inlet 41 includes large air inlet end 411 through which compressed gas enters, and small air inlet end 412 which connects large air inlet end 411 with gas outlet 42 and has a smaller diameter than large air inlet end 411. The above structure can control the flow rate of the air inlet, and as the compressed gas passes through the air inlet from the larger end to the smaller end, the gas flow rate increases, promoting dispersion of the liquid.

[0028] Furthermore, each of the gas outlet 42 and the liquid outlet 52 includes an inlet stage, an outlet stage with a smaller diameter than the inlet stage and communicating with the ejection chamber 31, and a transition stage connected between the inlet and outlet stages, with the diameter gradually decreasing from the inlet stage toward the outlet stage. After the fluid passes through the gas outlet 42 and the liquid outlet 52, which have gradually decreasing diameters, the flow rate of the gas and liquid entering the ejection chamber 31 increases, which is beneficial to dispersing the liquid and thereby atomizing the ejected aerosol product more finely and uniformly.

[0029] In the present invention, a seal gasket 8 is attached between the valve body 2 and the seal cup 1, and is movably and sealingly fitted onto the valve stem 3. Specifically, the seal gasket 8 is attached to an attachment groove 23 at the end of the valve body 2, and is interposed between the valve body 2 and the seal cup 1 when the valve body 2 is engaged with the seal cup 1. As shown in FIG. 2, in the initial state, the gas outlet 42 and the liquid outlet 52 are located above the seal gasket 8 and are spaced apart from the air supply hole 41 and the valve chamber 21. As shown in FIG. 3, when the valve stem 3 slides downward, the gas outlet 42 moves below the seal gasket 8 and communicates with the air supply hole 41, and the liquid outlet 52 moves below the seal gasket 8 and communicates with the valve chamber 21. A spring 9 is provided within the valve chamber 21 to bias the valve stem 3 to return it to its upward position. The lower end of the spring 9 abuts against the bottom wall of the valve chamber 21, and the upper end abuts against the lower end of the valve stem 3. When the valve stem 3 slides downward, a two-phase flow is ejected, and the spring 9 urges the valve stem 3 to return to its upward position, thereby positioning the gas outlet 42 and the liquid outlet 52 above the sealing gasket 8, and thus the aerosol valve is sealed again.

[0030] In the present invention, the valve stem 3 is provided with a guide groove 32 extending in the vertical direction, and a slider 22 is provided in the valve chamber 21. The slider 22 is inserted into the guide groove 32 and slides along the guide groove 32 when the valve stem 3 slides up and down relative to the valve body 2. Specifically, two sliders 22 are provided facing each other on the inner wall of the valve chamber 21, and in this case, a guide groove 32 is provided on each side of the outer peripheral wall of the valve stem 3. When the valve stem 3 slides up and down relative to the valve body 2, the guide groove 32 and the slider 22 slide and guide the valve stem 3, thereby stabilizing the sliding of the valve stem and preventing misalignment, ensuring proper operation of the air supply structure and the liquid supply structure.

[0031] As shown in Figure 6, the aerosol spraying device using the aerosol valve described above includes an aerosol tank 20 with an opening and an actuator 30 inserted into the upper end of the valve stem 3 to spray liquid in mist form. The actuator 30 is an assembly of a two-part precision mist point structure, a mist point main body, and a mist point diversion positioning column device, resulting in finer atomized particles, softer spray, and lower noise. For the structure and principle of the mist point structure, please refer to our previous Chinese patent, application number CN201510036877.0, entitled "Two-Part Precision Mist Point." The opening of the aerosol tank 20 is provided with a rim 201, and the sealing cup 1 is provided with a connecting flange 12 that engages with the rim 201 to secure the aerosol valve to the aerosol tank 20. Specifically, a seal cup washer 11 is provided inside the seal cup 1, and the connection flange 12 and rim 201 are fitted together, so that when the seal cup 1 is attached to the aerosol tank 20, the seal cup 1 presses the seal cup washer 11 against the edge of the opening of the aerosol tank 20, thereby sealing and fixing the seal cup 1 to the aerosol tank 20. A straw 10 is connected to the liquid supply port at the bottom end of the valve body 2, and the straw 10 extends into the aerosol tank 20. Within the aerosol tank, the gas phase is at the top of the tank and the liquid phase is at the bottom. Therefore, when the aerosol valve is attached to the aerosol tank 20 and used, the liquid enters the valve chamber 21 through the straw 10 and is then sprayed into the spray chamber 31 through the liquid outlet 52. Meanwhile, the gas enters through the air inlet 41 and is sprayed into the spray chamber 31 through the gas outlet 42. The compressed gas and liquid are sprayed out on both sides of the S-shaped block, flow along the S-shaped block on both sides of the S-shaped block, and finally join together to form a two-phase swirling flow. The airflows are mixed and collide with the liquid, dispersing it, and are finally sprayed out of the actuator. The spray sprayed in this way has a small particle size and a good atomization effect.

[0032] (Addendum) (Appendix 1) 1. An aerosol valve, comprising: 1. An aerosol valve comprising: a valve body (2) connected to a seal cup (1); a valve chamber (21) provided within the valve body (2) for receiving liquid from an aerosol tank; a valve stem (3) having an upper end that passes through the seal cup (1) and that is slidable up and down within the valve chamber (21); a spray chamber (31) provided in the valve stem (3); an air supply structure (4) and a liquid supply structure (5) provided between the valve body (2) and the valve stem (3) for allowing compressed gas from the aerosol tank to enter the spray chamber (31) when the valve stem (3) slides downward; and a flow guide structure (6) provided within the spray chamber (31) for guiding the liquid and compressed gas, mixing them within the spray chamber (31), and discharging them.

[0033] (Appendix 2) The aerosol valve according to appendix 1, wherein the air supply structure (4) and the liquid supply structure (5) are arranged opposite each other, the flow guide structure (6) includes a gas guide surface (61) provided on the air supply structure (4) side that can guide the compressed gas in a spiral shape, and a liquid guide surface (62) provided on the liquid supply structure (5) side that can guide the liquid in a spiral shape, the rotation directions of the spirally shaped compressed gas and the spirally shaped liquid are the same, and the compressed gas and the liquid are mixed in a spiral shape.

[0034] (Appendix 3) The aerosol valve according to claim 4, wherein the flow guide structure (6) is a bump in the center of the bottom wall of the ejection chamber (31), there is a gap between the outer wall of the bump and the inner wall of the ejection chamber (31), and the gas guide surface (61) and the liquid guide surface (62) are provided on both sides of the bump, respectively.

[0035] (Appendix 4) The aerosol valve according to claim 2 or 3, wherein the gas guide surface (61) includes a first arc-shaped concave surface facing the air supply structure (4) and a first arc-shaped convex surface connected to the first arc-shaped concave surface, and the liquid guide surface (62) includes a second arc-shaped concave surface facing the liquid supply structure (5) and a second arc-shaped convex surface connected to the second arc-shaped concave surface.

[0036] (Appendix 5) The aerosol valve according to appendix 1, characterized in that the air supply structure (4) includes an air supply hole (41) provided in the side wall of the valve body (2) and through which compressed gas in the aerosol tank enters, and a gas outlet (42) provided in the side wall of the valve stem (3) and which connects the air supply hole (41) with the ejection chamber (31) when the valve stem (3) slides downward.

[0037] (Appendix 6) The aerosol valve according to claim 5, wherein the air inlet (41) includes a large air inlet end (411) through which compressed gas enters, and a small air inlet end (412) that connects the large air inlet end (411) to the gas outlet (42) and has a smaller diameter than the large air inlet end (411).

[0038] (Appendix 7) The aerosol valve according to claim 5, wherein the liquid supply structure (5) includes a liquid outlet (52) provided on a side wall of the valve stem (3) and connecting the valve chamber (21) and the ejection chamber (31) when the valve stem (3) slides downward.

[0039] (Appendix 8) 8. The aerosol valve according to claim 7, wherein the gas outlet (42) and the liquid outlet (52) each include an inlet stage, an outlet stage having a smaller diameter than the inlet stage and communicating with the ejection chamber (31), and a transition stage connected between the inlet stage and the outlet stage, the diameter of which gradually decreases from the inlet stage toward the outlet stage.

[0040] (Appendix 9) The aerosol valve according to appendix 7, characterized in that a seal gasket (8) is attached between the valve body (2) and the seal cup (1), and is movably and sealed and fitted onto the valve stem (3), the gas outlet (42) and the liquid outlet (52) are located above the seal gasket (8), and when the valve stem (3) slides downward, the gas outlet (42) moves below the seal gasket (8) to communicate with the air inlet (41), and the liquid outlet (52) moves below the seal gasket (8) to communicate with the valve chamber (21), and a spring (9) is provided within the valve chamber (21) to urge the valve stem (3) to return it to its upward position.

[0041] (Appendix 10) An aerosol spray device using the aerosol valve according to any one of Supplementary Notes 1 to 9, The device includes an aerosol tank (20) having an opening, and an actuator (30) that is inserted into the upper end of the valve stem (3) and sprays the liquid in a mist form; The aerosol spray device is characterized in that a rim (201) is provided at the opening of the aerosol tank (20), and a connection flange (12) is provided on the seal cup (1) that is coupled to the rim (201) and fixes the aerosol valve to the aerosol tank (20).

Claims

1. 1. An aerosol valve, comprising:

1. An aerosol valve comprising: a valve body (2) connected to a seal cup (1); a valve chamber (21) for receiving liquid from an aerosol tank provided within the valve body (2); a valve stem (3) having an upper end that passes through the seal cup (1) and that is slidable up and down within the valve chamber (21); a spray chamber (31) provided in the valve stem (3); an air supply structure (4) for allowing compressed gas from the aerosol tank to enter the spray chamber (31) when the valve stem (3) slides downward and a liquid supply structure (5) for allowing liquid from the aerosol tank to enter the spray chamber (31) from the valve chamber (21); and a flow guide structure (6) for guiding the liquid and compressed gas within the spray chamber (31) and mixing them within the spray chamber (31) before discharging them.

2. 2. The aerosol valve according to claim 1, wherein the air supply structure (4) and the liquid supply structure (5) are arranged opposite each other, the flow guide structure (6) includes a gas guide surface (61) provided on the air supply structure (4) side that can guide the compressed gas in a spiral shape, and a liquid guide surface (62) provided on the liquid supply structure (5) side that can guide the liquid in a spiral shape, the rotation directions of the spirally shaped compressed gas and the spirally shaped liquid are the same, and the compressed gas and the liquid are mixed in a spiral shape.

3. 5. The aerosol valve according to claim 4, wherein the flow guide structure (6) is a bump in the center of the bottom wall of the ejection chamber (31), there is a gap between the outer wall of the bump and the inner wall of the ejection chamber (31), and the gas guide surface (61) and the liquid guide surface (62) are provided on both sides of the bump, respectively.

4. 4. The aerosol valve according to claim 2, wherein the gas guide surface (61) includes a first arc-shaped concave surface facing the air supply structure (4) and a first arc-shaped convex surface connected to the first arc-shaped concave surface, and the liquid guide surface (62) includes a second arc-shaped concave surface facing the liquid supply structure (5) and a second arc-shaped convex surface connected to the second arc-shaped concave surface.

5. 2. The aerosol valve according to claim 1, wherein the air supply structure (4) includes: an air supply hole (41) provided in a side wall of the valve body (2) through which compressed gas in the aerosol tank enters; and a gas outlet (42) provided in a side wall of the valve stem (3) that connects the air supply hole (41) with the ejection chamber (31) when the valve stem (3) slides downward.

6. 6. The aerosol valve according to claim 5, wherein the air inlet (41) includes a large air inlet end (411) through which compressed gas enters, and a small air inlet end (412) that connects the large air inlet end (411) to the gas outlet (42) and has a smaller diameter than the large air inlet end (411).

7. 6. The aerosol valve according to claim 5, wherein the liquid supply structure (5) includes a liquid ejection port (52) provided on a side wall of the valve stem (3) and connecting the valve chamber (21) and the ejection chamber (31) when the valve stem (3) slides downward.

8. 8. The aerosol valve according to claim 7, wherein each of the gas outlet (42) and the liquid outlet (52) includes an inlet stage, an outlet stage having a smaller diameter than the inlet stage and communicating with the ejection chamber (31), and a transition stage connected between the inlet stage and the outlet stage, the diameter of which gradually decreases from the inlet stage toward the outlet stage.

9. 8. The aerosol valve according to claim 7, wherein a seal gasket (8) is attached between the valve body (2) and the seal cup (1) and is movably and sealed and fitted onto the valve stem (3), the gas outlet (42) and the liquid outlet (52) are located above the seal gasket (8), and when the valve stem (3) slides downward, the gas outlet (42) moves below the seal gasket (8) to communicate with the air inlet (41), and the liquid outlet (52) moves below the seal gasket (8) to communicate with the valve chamber (21), and a spring (9) is provided within the valve chamber (21) to urge the valve stem (3) to return it to its upward position.

10. An aerosol spray device using the aerosol valve according to any one of claims 1 to 9, The device includes an aerosol tank (20) having an opening, and an actuator (30) inserted into the upper end of the valve stem (3) to spray the liquid in a mist form; The aerosol spray device is characterized in that a rim (201) is provided at the opening of the aerosol tank (20), and the sealing cup (1) is provided with a connection flange (12) that is coupled to the rim (201) and fixes the aerosol valve to the aerosol tank (20).

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