CN220810525U

CN220810525U - Aerosol valve and aerosol spraying device

Info

Publication number: CN220810525U
Application number: CN202322184501.7U
Authority: CN
Inventors: 梁配辉; 李军; 张永雷; 朱茂勇
Original assignee: Guangdong Meijieshi Holdings Co ltd
Current assignee: Guangdong Meijieshi Holdings Co ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2024-04-19
Anticipated expiration: 2033-08-14

Abstract

The utility model discloses an aerosol valve and an aerosol spraying device, wherein the aerosol valve is applied to the aerosol spraying device and comprises a valve body connected with a sealing cup, a valve cavity for liquid in an aerosol can to enter is arranged in the valve body, a valve rod with the upper end penetrating out of the sealing cup is arranged in the valve cavity in a vertical sliding manner, an ejection cavity is arranged on the valve rod, an air inlet structure for compressed gas in the aerosol can to enter the ejection cavity after the valve rod slides downwards and a liquid inlet structure for liquid in the aerosol can to enter the ejection cavity from the valve cavity are arranged between the valve body and the valve rod, and a flow guide structure for guiding the liquid and the compressed gas and mixing and flowing out in the ejection cavity is arranged in the ejection cavity; the aerosol spraying device comprises an aerosol tank with a tank opening and an actuator which is inserted into the upper end of the valve rod and can spray liquid in a mist form, wherein a convex edge is arranged at the tank opening of the aerosol tank, and a connecting flanging which is buckled on the convex edge and fixes the aerosol valve on the aerosol tank is arranged on the sealing cup.

Description

Aerosol valve and aerosol spraying device

[ Field of technology ]

The utility model relates to the technical field of aerosol products, in particular to an aerosol valve and an aerosol spraying device using the same.

[ Background Art ]

The aerosol industry has been subjected to two large impacts in the development of more than half a century, the first occurrence in the 70 s of the 20 th century, continuing to the mid-80 s, the montreal protocol in 1987, has reached theories that chlorofluorocarbons CFCs cannot be used in aerosols, and instead liquefied petroleum gas LPG and dimethyl ether DME are the major petrochemical gases as the source of the injection power for new aerosols. In the next second impact, the aerosol is reduced to limit the use of volatile organic compounds VOCs, as LPG and DME are volatile organic compounds VOCs themselves, and are also subject to a final replacement fate. Because the compressed gas such as air, nitrogen and carbon dioxide has no damage to the ozone layer and the whole ecological environment, has no inflammability and the like, the propellant is a better propellant substitute after two impacts of the aerosol industry

At present, in an aerosol can taking compressed gas as a propellant, an aerosol valve used by the aerosol can only can be used for compressing the compressed gas to extrude liquid flow in the aerosol can to spray onto an actuator, and then atomization is carried out by an actuator nozzle, and the aerosol valve structure is disclosed in Chinese patent application number CN2016089894044. X and named as a powder spraying type aerosol valve structure, and generally comprises a valve body connected with a sealing cup, a valve rod is arranged in a cavity of the valve body, one end of the valve rod penetrates through the sealing cup and the valve body, an inner sealing gasket is pressed between the end of the valve body and the inner wall of the sealing cup, the inner sealing gasket is sleeved at one end of the valve rod and forms movable sealing with the valve rod, a liquid spraying cavity is arranged at one end of the valve rod, a limiting hole is arranged in the middle of the valve rod, and a liquid spraying gap is formed by jointly enclosing the inner wall of the cavity of the valve body and the outer wall of the valve rod, and the liquid spraying cavity is controlled to spray liquid or not. However, since the compressed gas generally does not have the effect of "liquid vaporization", that is, does not have a phenomenon such as rapid vaporization of the liquefied gas during discharge of the liquid from the aerosol spray device, which rapid expansion causes formation of fine spray, and the above-mentioned aerosol valve itself cannot realize atomization, in the case of using the compressed gas as a propellant, the aerosol product employing the conventional aerosol valve tends to have problems such as a larger spray particle size, poor atomization effect, and the like.

The present utility model has been made in view of the above drawbacks.

[ utility model ]

The utility model aims to overcome the defects of the prior art, provides an aerosol valve with a simple structure and an improved atomization effect, and also provides an aerosol spraying device using the aerosol valve.

The utility model is realized by the following technical scheme:

An aerosol valve, characterized in that: the valve comprises a valve body 2 connected with a sealing cup 1, wherein a valve cavity 21 capable of allowing liquid in an aerosol can to enter is arranged in the valve body 2, a valve rod 3 with the upper end penetrating out of the sealing cup 1 is arranged in the valve cavity 21 in a vertically sliding mode, an ejection cavity 31 is arranged on the valve rod 3, an air inlet structure 4 capable of allowing compressed gas in the aerosol can to enter the ejection cavity 31 after the valve rod 3 slides downwards and a liquid inlet structure 5 capable of allowing liquid in the aerosol can to enter the ejection cavity 31 from the valve cavity 21 are arranged between the valve body 2 and the valve rod 3, and a flow guide structure 6 capable of guiding the liquid and the compressed gas and mixing and flowing out in the ejection cavity 31 is arranged in the ejection cavity 31.

An aerosol valve as described above, wherein: the air inlet structure 4 and the liquid inlet structure 5 are oppositely arranged, the flow guiding structure 6 comprises a gas guiding surface 61 which is arranged on one side of the air inlet structure 4 and can guide compressed gas into a vortex shape, and a liquid guiding surface 62 which is arranged on one side of the liquid inlet structure 5 and can guide liquid into a vortex shape, and the vortex-shaped compressed gas and the vortex-shaped liquid are the same in rotation direction, so that the compressed gas and the liquid are mixed in a vortex shape.

An aerosol valve as described above, wherein: the flow guiding structure 6 is a bump in the middle of the bottom wall of the ejection chamber 31, the outer wall of the bump is spaced from the inner wall of the ejection chamber 31, and the gas guiding surface 61 and the liquid guiding surface 62 are respectively arranged on two sides of the bump.

An aerosol valve as described above, wherein: the gas guiding surface 61 comprises a first arc concave surface opposite to the gas inlet structure 4 and a first arc convex surface connected with the first arc concave surface, and the liquid guiding surface 62 comprises a second arc concave surface opposite to the liquid inlet structure 5 and a second arc convex surface connected with the second arc concave surface.

An aerosol valve as described above, wherein: the air inlet structure 4 comprises an air inlet hole 41 arranged on the side wall of the valve body 2 for the compressed air in the aerosol can to enter, and an air nozzle 42 arranged on the side wall of the valve rod 3 and communicated with the air inlet hole 41 and the ejection cavity 31 after the valve rod 3 slides downwards.

An aerosol valve as described above, wherein: the air inlet 41 includes an air inlet end 411 for compressed air to enter, and an air inlet end 412 for communicating the air inlet end 411 with the air nozzle 42 and having a smaller caliber than the air inlet end 411.

An aerosol valve as described above, wherein: the liquid inlet structure 5 comprises a liquid spout 52 which is arranged on the side wall of the valve rod 3 and is communicated with the valve cavity 21 and the ejection cavity 31 after the valve rod 3 slides downwards.

An aerosol valve as described above, wherein: the gas spout 42 and the liquid spout 52 each include an inlet section, an outlet section having a smaller caliber than the inlet section and communicating with the ejection chamber 31, and a transition section connected between the inlet section and the outlet section and having a caliber gradually decreasing from the inlet section to the outlet section.

An aerosol valve as described above, wherein: the valve is characterized in that a sealing gasket 8 with a movable sealing sleeve on the valve rod 3 is arranged between the valve body 2 and the sealing cup 1, the gas nozzle 42 and the liquid nozzle 52 are positioned above the sealing gasket 8, when the valve rod 3 slides downwards, the gas nozzle 42 moves to the lower part of the sealing gasket 8 to be communicated with the air inlet 41, the liquid nozzle 52 moves to the lower part of the sealing gasket 8 to be communicated with the valve cavity 21, and a spring 9 capable of pushing the valve rod 3 to reset upwards is arranged in the valve cavity 21.

An aerosol spray device using the aerosol valve comprises an aerosol can 20 with a can opening and an actuator 30 which is inserted into the upper end of a valve rod 3 and can spray liquid, and is characterized in that: a convex edge 201 is arranged at the opening of the aerosol can 20, and a connecting flange 12 which is buckled on the convex edge 201 and fixes the aerosol valve on the aerosol can 20 is arranged on the sealing cup 1.

Compared with the prior art, the utility model has the following advantages:

1. In the utility model, the compressed gas entering the ejection cavity from the air inlet structure and the liquid entering the ejection cavity from the liquid inlet structure are guided by the guide structure to form two-phase flow, so that the air flow is mixed to impact the liquid to break up the liquid, the structure is simple, the primary atomization can be carried out before the atomization by using the actuator, the atomization effect is improved, the atomization requirement of using the compressed gas as a propellant is met, and the environment-friendly effect is realized.

2. In the utility model, the flow rate of the compressed gas is increased after passing through the air inlet hole with the aperture from large to small, so that the liquid is convenient to break up.

[ Description of the drawings ]

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the utility model in its initial state;

FIG. 3 is a cross-sectional view of the present utility model in use;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is an exploded view of the present utility model;

Fig. 6 is a schematic structural view of an aerosol spray device incorporating the aerosol valve of the present utility model.

[ Detailed description ] of the invention

The utility model is further described below with reference to the accompanying drawings:

As shown in fig. 1 to 6, an aerosol valve comprises a valve body 2 connected with a sealing cup 1, a valve cavity 21 capable of allowing liquid in the aerosol can to enter is arranged in the valve body 2, a valve rod 3 with the upper end penetrating out of the sealing cup 1 is arranged in the valve cavity 21 in a vertically sliding manner, an ejection cavity 31 is arranged on the valve rod 3, an air inlet structure 4 for allowing compressed gas in the aerosol can to enter the ejection cavity 31 after the valve rod 3 slides downwards and a liquid inlet structure 5 for allowing liquid in the aerosol can to enter the ejection cavity 31 from the valve cavity 21 are arranged between the valve body 2 and the valve rod 3, and a flow guide structure 6 capable of guiding the liquid and the compressed gas and mixing and flowing out in the ejection cavity 31 is arranged in the ejection cavity 31. In the utility model, the compressed gas entering the ejection cavity from the air inlet structure and the liquid entering the ejection cavity from the liquid inlet structure are guided by the guide structure to form two-phase flow, so that the air flow is mixed to impact the liquid to break up the liquid, the structure is simple, the primary atomization can be carried out before the atomization by using the actuator, the atomization effect is improved, the atomization requirement of using the compressed gas as a propellant is met, and the environment-friendly effect is realized.

As shown in fig. 4, the air intake structure 4 and the liquid intake structure 5 are disposed opposite to each other, and the flow guiding structure 6 includes a gas guiding surface 61 provided on the air intake structure 4 side and capable of guiding compressed gas into a vortex shape, and a liquid guiding surface 62 provided on the liquid intake structure 5 side and capable of guiding liquid into a vortex shape, and the vortex-shaped compressed gas and the vortex-shaped liquid are rotated in the same direction so that the compressed gas and the liquid are swirled and mixed.

Specifically, the flow guiding structure 6 is a bump in the middle of the bottom wall of the ejection chamber 31, the outer wall of the bump is spaced from the inner wall of the ejection chamber 31, and the gas guiding surface 61 and the liquid guiding surface 62 are respectively disposed on two sides of the bump.

Specifically, the gas guiding surface 61 includes a first circular arc concave surface facing the gas inlet structure 4 and a first circular arc convex surface connected to the first circular arc concave surface, and the liquid guiding surface 62 includes a second circular arc concave surface facing the liquid inlet structure 5 and a second circular arc convex surface connected to the second circular arc concave surface. The flow guiding structure 6 is approximately an S-shaped block.

The air inlet structure 4 comprises an air inlet hole 41 which is arranged on the side wall of the valve body 2 and is used for allowing compressed air in the aerosol can to enter, and an air nozzle 42 which is arranged on the side wall of the valve rod 3 and is communicated with the air inlet hole 41 and the ejection cavity 31 after the valve rod 3 slides downwards; the liquid inlet structure 5 includes a liquid spout 52 provided on the side wall of the valve stem 3 and communicating the valve chamber 21 and the ejection chamber 31 when the valve stem 3 slides downward. The gas spout 42 and the liquid spout 52 are arranged on two sides of the flow guiding structure 6, the gas spout 42 is opposite to the first arc concave surface of the gas guiding surface 61, and the liquid spout 52 is opposite to the second arc concave surface of the liquid guiding surface 62. After the air inlet 41 is communicated with the air nozzle 42 and the valve cavity 21 is communicated with the liquid nozzle 52, compressed air and liquid are respectively sprayed to two sides of the flow guiding structure 6, flow along the approximately S-shaped guiding surface of the flow guiding structure 6 at two sides of the flow guiding structure 6, and finally interweave into two-phase rotational flow.

Further, the air intake hole 41 includes an air intake large hole end 411 into which the compressed air enters, an air intake small hole end 412 for communicating the air intake large hole end 411 with the air jet 42 and having a smaller caliber than the air intake large hole end 411. The structure can control the air inlet flow velocity, and the flow velocity of the compressed air is increased after passing through the air inlet hole with the aperture from large to small, so that the liquid is convenient to break up.

Further, the gas spout 42 and the liquid spout 52 each include an inlet section, an outlet section having a smaller caliber than the inlet section and communicating with the ejection chamber 31, and a transition section connected between the inlet section and the outlet section and having a gradually decreasing caliber from the inlet section to the outlet section. After the fluid passes through the gas nozzle 42 and the liquid nozzle 52 with the apertures from large to small, the flow rate of the gas and the liquid entering the ejection chamber 31 is increased, which is more beneficial to break up the liquid, so that the ejected aerosol product is atomized more finely and more uniformly.

In the utility model, a sealing gasket 8 which is movably sealed and sleeved on a valve rod 3 is arranged between a valve body 2 and a sealing cup 1, the sealing gasket 8 is specifically arranged in a mounting groove 23 at the end part of the valve body 2, and the sealing gasket is clamped between the valve body 2 and the sealing cup 1 after the valve body 2 is clamped on the sealing cup 1. As shown in fig. 2, in the initial state, the gas orifice 42 and the liquid orifice 52 are located above the sealing gasket 8, spaced from the gas inlet hole 41 and the valve chamber 21; as shown in fig. 3, the gas spout 42 moves to communicate with the gas inlet hole 41 under the sealing gasket 8 and the liquid spout 52 moves to communicate with the valve chamber 21 under the sealing gasket 8 after the valve stem 3 slides downward; the valve cavity 21 is internally provided with a spring 9 which can spring the valve rod 3 to reset upwards. The lower end of the spring 9 is abutted against the bottom wall of the valve cavity 21, the upper end is abutted against the lower end of the valve rod 3, and when the valve rod 3 slides downwards to spray out two-phase flow, the spring 9 can spring the valve rod 3 to reset upwards, so that the gas nozzle 42 and the liquid nozzle 52 are positioned above the sealing gasket 8, and the aerosol valve is sealed again.

In the present utility model, the valve rod 3 is provided with a longitudinally extending guide groove 32, and the valve chamber 21 is provided with a guide slider 22 inserted into the guide groove 32 and sliding along the guide groove 32 when the valve rod 3 slides up and down relative to the valve body 2. Specifically, two guide blocks 22 are arranged on the inner wall of the valve cavity 21, and correspondingly, guide grooves 32 are respectively arranged on two sides of the outer peripheral wall of the valve rod 3. When the valve rod 3 slides up and down relative to the valve body 2, the guide groove 32 and the guide slide block 22 play a sliding guide role on the valve rod 3, so that the valve rod slides stably without dislocation, and the operation of an air inlet structure and a liquid inlet structure is ensured.

As shown in fig. 6, an aerosol spraying device using the aerosol valve includes an aerosol can 20 with a can opening and an actuator 30 inserted into the upper end of a valve rod 3 and capable of spraying liquid, wherein the actuator 30 adopts a two-piece type precise spray point structure, a spray point main body device and a spray point diversion positioning column device are assembled to form the aerosol spray device, atomized particles are fine, spraying is soft and noise is low, and regarding the structure and principle of the two-piece type spray point structure, reference can be made to the chinese patent of my prior application, the application number is CN201510036877.0, and the patent name is a precise spray point; a flange 201 is arranged at the mouth of the aerosol can 20, and a connecting flange 12 which is buckled on the flange 201 and fixes the aerosol valve on the aerosol can 20 is arranged on the sealing cup 1. Specifically, a cup sealing gasket 11 is arranged in the sealing cup 1, and when the connecting flange 12 is matched with the convex edge 201 to enable the sealing cup 1 to be installed on the aerosol can 20, the sealing cup 1 presses the cup sealing gasket 11 on the end part of the can opening of the aerosol can 20, so that the sealing cup 1 and the aerosol can 20 are fixedly sealed; a suction pipe 10 is connected at the liquid inlet at the lower end of the valve body 2, and the suction pipe 10 extends into the aerosol can 20. Because in the aerosol can, the gaseous phase is in jar body upper portion, the liquid phase is in jar body lower part, when this aerosol valve dress was on aerosol can 20 and use, liquid got into valve pocket 21 from straw 10, then spout into spout the chamber 31 through liquid spout 52, and gas then from inlet port 41, spout into spout the chamber 31 through gas spout 42, compressed gas and liquid spout the both sides of S-shaped piece respectively, and flow along the S-shaped piece in S-shaped piece both sides, interweave into two-phase whirl at last, the air current mixing impact breaks up liquid, spray particle diameter is less when the actuator spouts at last, atomization effect is good.

Claims

1. An aerosol valve, characterized in that: including valve body (2) of being connected with seal cup (1), valve body (2) in be equipped with valve pocket (21) that can supply the interior liquid of aerosol jar to get into, valve pocket (21) in can be equipped with valve rod (3) that upper end worn out seal cup (1) with sliding from top to bottom, valve rod (3) on be equipped with blowout chamber (31), valve body (2) and valve rod (3) between be equipped with and supply inlet structure (4) in blowout chamber (31) and supply liquid in the aerosol jar to get into feed liquid structure (5) in blowout chamber (31) from valve pocket (21) after valve rod (3) slide downwards, blowout chamber (31) in be equipped with can be to liquid and compressed gas direction and mix guide structure (6) that flows out in blowout chamber (31).

2. The aerosol valve of claim 1, wherein: the air inlet structure (4) and the liquid inlet structure (5) are oppositely arranged, the flow guiding structure (6) comprises a gas guiding surface (61) which is arranged on one side of the air inlet structure (4) and can guide compressed gas into a vortex shape, and a liquid guiding surface (62) which is arranged on one side of the liquid inlet structure (5) and can guide liquid into a vortex shape, and the vortex-shaped compressed gas and the vortex-shaped liquid are the same in rotation direction, so that the compressed gas and the liquid are in vortex-shaped mixing.

3. The aerosol valve of claim 2, wherein: the flow guiding structure (6) is a lug at the middle part of the bottom wall of the ejection cavity (31), the outer wall of the lug is spaced from the inner wall of the ejection cavity (31), and the gas guiding surface (61) and the liquid guiding surface (62) are respectively arranged at two sides of the lug.

4. An aerosol valve according to claim 3, wherein: the gas guiding surface (61) comprises a first arc concave surface opposite to the gas inlet structure (4) and a first arc convex surface connected with the first arc concave surface, and the liquid guiding surface (62) comprises a second arc concave surface opposite to the liquid inlet structure (5) and a second arc convex surface connected with the second arc concave surface.

5. The aerosol valve of claim 1, wherein: the air inlet structure (4) comprises an air inlet hole (41) which is arranged on the side wall of the valve body (2) and used for allowing compressed air to enter into the aerosol can, and an air nozzle (42) which is arranged on the side wall of the valve rod (3) and is communicated with the air inlet hole (41) and the ejection cavity (31) after the valve rod (3) slides downwards.

6. The aerosol valve of claim 5, wherein: the air inlet hole (41) comprises an air inlet big hole end (411) for compressed air to enter, and an air inlet small hole end (412) which is used for communicating the air inlet big hole end (411) with the air nozzle (42) and has a caliber smaller than that of the air inlet big hole end (411).

7. The aerosol valve of claim 5, wherein: the liquid inlet structure (5) comprises a liquid nozzle (52) which is arranged on the side wall of the valve rod (3) and is communicated with the valve cavity (21) and the ejection cavity (31) after the valve rod (3) slides downwards.

8. The aerosol valve of claim 7, wherein: the gas nozzle (42) and the liquid nozzle (52) comprise an inlet section, an outlet section with a caliber smaller than that of the inlet section and communicated with the ejection cavity (31), and a transition section which is connected between the inlet section and the outlet section and gradually reduces from the inlet section to the outlet section.

9. The aerosol valve of claim 7, wherein: the valve is characterized in that a sealing gasket (8) of the movable sealing sleeve on the valve rod (3) is arranged between the valve body (2) and the sealing cup (1), the gas nozzle (42) and the liquid nozzle (52) are arranged above the sealing gasket (8), when the valve rod (3) slides downwards, the gas nozzle (42) moves to the lower part of the sealing gasket (8) to be communicated with the air inlet hole (41), the liquid nozzle (52) moves to the lower part of the sealing gasket (8) to be communicated with the valve cavity (21), and a spring (9) capable of pushing the valve rod (3) to reset upwards is arranged in the valve cavity (21).

10. An aerosol spray device using the aerosol valve of any of claims 1 to 9, comprising an aerosol canister (20) having a canister opening and an actuator (30) inserted into the upper end of the valve stem (3) for spraying liquid, characterized in that: a convex edge (201) is arranged at the tank opening of the aerosol tank (20), and a connecting flange (12) which is buckled on the convex edge (201) and used for fixing the aerosol valve on the aerosol tank (20) is arranged on the sealing cup (1).