CN118001522A - Supersonic jet device, noninvasive jet device, jet instrument and nursing method - Google Patents

Abstract

The application belongs to a spraying device, and aims at solving the problems that the existing instrument still has uneven spraying and inconvenient operation, and provides a supersonic spraying device, a noninvasive spraying device, a spraying instrument and a nursing method. The application designs the ratio between the axial length L1 and the axial length L2, further optimizes the structure of the application, and through practical verification, under the optimized ratio, the jet force of the supersonic jet device is obviously improved, the particle size and the jet range of the sprayed liquid drop are better, and the flow velocity of the liquid drop is more stable.

Description

Supersonic jet device, noninvasive jet device, jet instrument and nursing method

Technical Field

The application belongs to an injection device, and particularly relates to a supersonic injection device, a noninvasive injection device, an injection instrument and a nursing method.

Background

With the improvement of the living standard of people, the care of the body has gradually become a hot spot, such as the care of the skin, the hair and the like. In the traditional nursing method, the nursing liquid is generally directly smeared on a place to be acted on by hands. Taking beauty and skin care as an example, the cosmetics are applied on the surface layer of the skin by hands, and the skin is waited for to absorb slowly. Complicated operation, long time and easy waste. Thus, the instrument capable of being used as an auxiliary means is motivated to continuously improve innovations. However, the existing instrument still has the problems of uneven spraying and inconvenience in operation.

Disclosure of Invention

Aiming at the problems that the existing instrument still has uneven spraying and inconvenient operation, the application provides a supersonic liquid spraying device, a noninvasive spraying device, a spraying instrument and a nursing method.

In order to achieve the above purpose, the application is realized by adopting the following technical scheme:

in a first aspect, the application provides a supersonic jet device comprising a liquid section, and an air inlet section, a contraction section, a throat section and an expansion section which are coaxially and sequentially connected;

Defining one end of the air inlet section close to the contraction section as the rear end;

The air inlet section, the contraction section, the throat and the expansion section are axially communicated; the front end of the air inlet section is provided with an opening to form an air inlet; the rear end of the expansion section is provided with an opening to form an injection port;

The small end of the contraction section faces backwards, and the small end of the expansion section faces forwards;

The liquid section is connected to the side wall of the throat part, and is communicated with the throat part;

the ratio of the axial length L1 to the axial length L2 is 0.6:1-0.85:1; the axial length L1 is the axial length of the contraction section, and the axial length L2 is the axial length of the expansion section.

Further, the device also comprises an injection head;

The spray head is detachably arranged at the rear end of the expansion section.

Further, the outer wall of the liquid section or the air inlet section is provided with a detachable mounting structure for detachable connection with an external instrument.

In a second aspect, the present application provides a non-invasive ejection device comprising a liquid container; the ultrasonic jet device also comprises a liquid feeding device and the ultrasonic jet device;

The liquid container is detachably connected with the liquid section in a sealing way, and the inside of the liquid container is communicated with the inside of the liquid section;

the output end of the liquid conveying device is communicated with the inside of the liquid container and is used for conveying liquid in the liquid container into the liquid section.

Further, the structure of the liquid conveying device is a piston kinematic pair structure;

The piston in the piston kinematic pair structure is positioned in the liquid container.

Further, the device also comprises a sealing cover;

the sealing cover is detachably connected with the liquid inlet section and is used for sealing the inlet of the liquid inlet section.

In a third aspect, the present application provides an injection apparatus, including an apparatus body and a hand tool; the non-invasive injection device is also included;

The liquid container is arranged at the front end of the hand tool;

The air inlet is connected with an external air source.

Further, a distance positioning device is arranged at the front end of the jet orifice and is used for positioning the distance between the jet orifice and the action of the jet instrument.

In a fourth aspect, the present application provides a care method, which uses the spraying apparatus;

Placing a care liquid to be used in the liquid container;

the air inlet is ventilated through an external air source, and meanwhile, nursing liquid to be used in the liquid container enters the throat part according to a preset liquid outlet amount;

The nursing liquid to be used is acted on the corresponding part through the jet orifice.

Further, the distance between the jet orifice and the corresponding part is 18-25mm.

Compared with the prior art, the application has the following beneficial effects:

The application provides a supersonic jet device, which comprises a liquid section, and an air inlet section, a contraction section, a throat and an expansion section which are coaxially and sequentially connected, wherein gas is introduced from an air inlet at the front end of the air inlet section, liquid enters from the liquid section, the gas is accelerated by the contraction section to reach the throat and is continuously accelerated in the expansion section, meanwhile, the liquid entering from the liquid section is atomized under the action of the gas at the throat and is brought into the expansion section, and is finally sprayed out from a spray opening along with the continuous acceleration, so that a uniform spraying effect is achieved, and the accelerating effect can reach supersonic speed. In addition, the application designs the ratio between the axial length L1 and the axial length L2, further optimizes the structure of the application, and through practical verification, under the optimized ratio, the jet force of the supersonic jet device is obviously improved, the particle size and the jet range of the sprayed liquid drop are better, and the flow velocity of the liquid drop is more stable.

The application also provides a noninvasive spraying device, a spraying instrument and a nursing method, which have all the advantages of the supersonic spraying device, and the corresponding spraying instrument has reasonable structure and simple and convenient operation.

Drawings

For a clearer description of the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a second embodiment of a supersonic jet apparatus in accordance with the present application;

FIG. 2 is a cross-sectional view of FIG. 1 after horizontal rotation;

FIG. 3 is a schematic view of the spray head of FIG. 2 shown disassembled;

FIG. 4 is a schematic view of a second embodiment of a non-invasive injection apparatus in accordance with the present application;

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

fig. 6 is a schematic view of a third embodiment of a non-invasive injection apparatus in accordance with the present application.

Wherein: 1-air inlet section, 2-contraction section, 3-throat, 4-expansion section, 5-air inlet, 6-jet orifice, 7-liquid section, 8-jet head, 9-liquid container, 10-piston, 11-sealing cover.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present application, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The traditional beauty and skin care method generally applies the cosmetics directly on the surface layer of the skin by hands, and waits for the skin to absorb slowly. Complicated operation, long time and easy waste. Therefore, a skin care mode of atomizing beauty skin care is derived, and beauty liquid and the like are directly sprayed on the surface of facial skin through an atomizing device, and the method can enable the liquid to be uniformly covered on the surface of the skin in the form of tiny particles, so that the liquid is easier to be absorbed and utilized by the skin. The principle of atomization beauty and skin care is that high-pressure gas is utilized to atomize liquid into tiny particles, and the tiny particles are absorbed by facial pores, sweat glands and sebaceous glands, so that the effect of beauty and skin care is achieved. Is widely used due to the advantages of convenience, rapidness and effectiveness.

The atomization rate, the size of spray particles, the spray angle and the like have important influences on the atomization beautifying effect, and are also difficult and key points of the design of the atomization beautifying device.

In addition to beauty and skin care, there are corresponding problems in the same manner as in the case of spraying medicines, caring scalp, and the like.

For the above reasons, the present application proposes a supersonic jet device, a non-invasive jet device, a jet instrument and a nursing method, and the present application is described in detail below with reference to examples and drawings.

As a first embodiment of the supersonic jet device according to the application, it may comprise a liquid section 7, and an air inlet section 1, a constriction section 2, a throat section 3 and an expansion section 4, which are coaxially and sequentially connected.

For convenience of the following description, the end of the intake section 1 near the contraction section 2 is defined as the rear.

Wherein, air inlet section 1, shrink section 2, throat 3 and expansion section 4 are along axial intercommunication, and the front end opening of air inlet section 1 sets up, forms air inlet 5, and the rear end opening of expansion section 4 sets up, forms jet 6. The small end of the contraction section 2 faces backwards, and the small end of the expansion section 4 faces forwards. The gas entering from the gas inlet 5 sequentially passes through the gas inlet section 1, the contraction section 2, the throat 3 and the expansion section 4, and is ejected from the ejection opening 6.

The small end of the constriction 2 is directed backwards, and the gas entering from the inlet section 1 passes through the constriction 2, and as the inside diameter of the constriction 2 gradually decreases, the gas flow is continually accelerated until reaching the throat 3, and the gas flow has been accelerated to a certain extent. The air flow then enters the expansion section 4, after being contracted in the throat 3, and enters the expansion section 4, the air flow will continue to be accelerated, thereby generating a greater thrust, causing the air flow to be ejected at the ejection opening 6.

A liquid section 7 is connected to the side wall of the throat 3, the liquid section 7 being in communication with the throat 3. The liquid enters from the liquid section 7 through the throat 3, the gas accelerated in the throat 3 is impacted and atomized into liquid particles, the atomized liquid particles are continuously accelerated along with the continuous acceleration of the gas in the expansion section 4, and the liquid particles are sprayed out from the spray opening 6 along with the gas after passing through the expansion section 4.

The ratio of the axial length L1 to the axial length L2 is 0.6:1-0.85:1. The axial length L1 is the axial length of the contracted section 2, and the axial length L2 is the axial length of the expanded section 4. And the constriction section 2, the throat section 3 and the expansion section 4 fulfil the following conditions: the liquid velocity at the jet opening 6 is brought to supersonic speed.

The injection force at the injection port 6 is compared at different ratios of the axial length L1 and the axial length L2. Fixing the axial length L1, and adjusting the axial length L2 to obtain different ratios of the axial length L1 to the axial length L2. From the results, it can be seen that at the design ratio of the present application, the injection force at the injection port 6 of the supersonic injection device is significantly enhanced, and at some axial lengths L2, the injection force is at least 2 times that in the non-design condition.

In addition, an optimal ratio was selected from the above-identified different ratios of the axial length L1 and the axial length L2, and further PDPA (Phase Doppler Particle Analyzer, laser phase doppler particle velocimetry) test was performed. The average ejection speed of the ejection port 6 of the optimum ratio to the original ratio, the particle size distribution of the liquid particles at 8mm outside the ejection port 6 of the optimum ratio to the original ratio, and the particle size distribution of the liquid particles at 20mm outside the ejection port 6 of the optimum ratio to the original ratio are compared. From the comparison result, the flow velocity of the liquid particles is more stable and concentrated under the optimal proportion, the particle diameters are more consistent along the flow direction, and the distribution range of the ejected liquid particles is more concentrated.

Fig. 1 to 3 show a second embodiment of a supersonic jet apparatus according to the present application, wherein fig. 1 is a schematic structural view of the second embodiment of the supersonic jet apparatus according to the present application, fig. 2 is a sectional view of fig. 1 after being horizontally rotated, and fig. 3 is a schematic view of fig. 2 after the jet head 8 is disassembled. A supersonic jet apparatus may comprise a jet head 8 and a liquid section 7, and an inlet section 1, a convergent section 2, a throat 3 and an divergent section 4 connected coaxially and sequentially. The spray head 8 is detachably arranged at the rear end of the expansion section 4, so that the supersonic speed spray device forms a quick-dismantling structure. Because the injection head 8 may contact with the user in the use process, for convenient operation and improving user experience, the injection head 8 can be replaced after each use, and the detachable connection mode is convenient for the user or the operator to quickly replace, so that the use sanitation and safety can be ensured.

In addition, in practical application, the supersonic jet device of the present application may need to be matched with other components, for example, the supersonic jet device is integrally fixed, and for convenience of use, a detachable mounting structure may be provided on the outer wall of the liquid section 7 or the air inlet section 1 for detachable connection with an external instrument. The specific setting position of the detachable mounting structure can be adjusted according to the processing and use requirements, so long as the detachable mounting structure can be detachably fixed, and the application is not limited.

It should be noted that, the detachable mounting structure of the jet head 8 and the detachable mounting structure provided on the outer wall of the liquid section 7 or the air intake section 1 may have various specific structural forms, for example, may be threaded connection, may be snap connection, or the like, and the present application is not limited in particular. In addition, in some application scenarios, the fixed connection can be performed without using a detachable mounting structure.

Based on the supersonic jet device, the application provides a noninvasive jet device. As a first embodiment of a non-invasive injection device according to the application, it may comprise a liquid container 9 and a liquid feeding device, as well as the aforementioned supersonic injection device.

The liquid container 9 is detachably connected with the liquid section 7 in a sealing way, and the inside of the liquid container 9 is communicated with the inside of the liquid section 7. The output end of the liquid feeding device is communicated with the interior of the liquid container 9 and is used for feeding the liquid in the liquid container 9 into the liquid section 7. The spraying liquid to be used is contained in the liquid container 9, in practical application, the liquid container 9 and the liquid section 7 are connected together in a sealing way, and the spraying liquid to be used is sent into the liquid section 7 from the liquid container 9 through the liquid sending device. The spray liquid to be used is delivered by a supersonic jet.

The form of the liquid feeding means may be varied as long as the spraying liquid to be used is fed from the liquid container 9 into the liquid section 7. In some embodiments of the application, the spray liquid to be used may be delivered quantitatively or regularly, or even arbitrarily regulated, in order to make the liquid delivery more controllable.

As shown in fig. 4 and 5, a second embodiment of a non-invasive injection apparatus according to the present application is shown. Wherein fig. 4 is a schematic view of a second embodiment of a non-invasive injection apparatus according to the present application, and fig. 5 is a cross-sectional view of fig. 4. A non-invasive spray device may comprise a liquid container 9 and a liquid feeding device, as well as the aforementioned supersonic spray device. The structure of the liquid delivery device is a piston 10 kinematic pair structure, and a piston 10 in the piston 10 kinematic pair structure is positioned in the liquid container 9. Before use, the spraying liquid to be used is contained below the piston 10, and the spraying liquid to be used is caused to enter the liquid section 7 by pushing the piston 10.

Fig. 6 shows a third embodiment of a non-invasive injection device according to the present application. On the basis of the second embodiment, the sealing cover 11 can be further included, and the sealing cover 11 is detachably connected with the liquid inlet section and is used for sealing the inlet of the liquid inlet section. In practical application, after the liquid container 9 is removed, or when the supersonic jet device is temporarily not used, the sealing cover 11 can be arranged at the inlet of the liquid inlet section to seal, so that the inside of the supersonic jet device is kept clean.

In some embodiments of the present application, a solenoid valve may be further provided at the intake port 5 to control the intake condition at the intake port 5. Simultaneously, high-speed air pressure is provided from the air inlet 5 in the supersonic jet device, and the liquid outlet amount can be regulated by utilizing the diameter of the liquid outlet of the liquid section 7 and the release time of each air flow. The spray liquid to be used is atomized into small particles which are sprayed onto the skin of the user. Proved by verification, the single liquid outlet amount of the jet orifice 6 can reach 8UL at minimum, and the tolerance of each liquid outlet amount can be controlled to be +/-0.5 UL.

At different air flow release times t, the time-series PIV speeds of the air flow were tested, and it can be seen that the position of the maximum speed is not at the injection port 6.

The application also provides a spraying instrument which can comprise an instrument body, a hand tool and the noninvasive spraying device. The liquid container 9 is arranged at the front end of the hand tool, and the air inlet 5 is connected with an external air source.

As an example of use of the ejection apparatus of the present application, use of the ejection apparatus of the present application will be described.

Taking beauty and skin care as an example, when the liquid container 9 is filled with cosmetics in which spray liquid is used as a skin lotion type cosmetic, the piston 10 is located at the bottom of the liquid container 9, and the cosmetics in the liquid container 9 are kept in a sealed state by the seal cover 11. In use, the liquid container 9 is in sealing connection with the supersonic jet device, so that the inside of the supersonic jet device is still kept in a sealed state. And then the connected liquid container 9 is arranged at the front end of the hand tool, the air inlet 5 is connected with an air pipe of an external air source, the fixing is firm, the instrument is started, and the hand tool enters a working state. Regarding the liquid inlet amount of each time, the time length of each air injection can be controlled through an electromagnetic valve, and the liquid outlet diameter of the liquid inlet section is controlled to be adjusted.

Taking gelatin as an example, the liquid medicine introducing efficiency of the spraying instrument can reach 70-80%. The larger air pressure can increase the proportion of the liquid medicine entering the skin to a certain extent. In addition, the application discovers in the research process that the distance between the jet orifice 6 and the skin, combined with the external flowing state of the jet orifice 6 under different pressures, has great influence on the action effect of the final jet instrument. At a distance of 20mm, the impact force of the air flow on the skin is obviously enhanced, and the partial speed can reach 320m/s.

Accordingly, in some embodiments of the present application, a distance positioning device may be installed at the front end of the injection port 6 for positioning the distance between the injection port 6 and the injection instrument operation so that the distance between the injection port 6 and the injection instrument operation is fixed at a preferable distance. The structure of the distance positioning device can be adjusted and selected according to actual use and processing requirements, and the distance positioning device can only play a role in fixing the position.

It should be noted that the above embodiments merely take the present application as an example for skin care. In other embodiments of the application, it may also be used for hair care, spraying medications, and the like. In practical applications, the cosmetic treatment is not limited to the cosmetic treatment.

The application also provides a nursing method, and nursing is implemented by adopting the spraying instrument provided by the application. The method can comprise the following steps:

S101, placing the care liquid to be used in the liquid container 9.

S102, ventilation is carried out to the air inlet 5 through an external air source, and meanwhile, nursing liquid to be used in the liquid container 9 enters the throat part 3 according to a preset liquid outlet amount.

S103, the care liquid to be used is made to act on the corresponding portion through the ejection port 6.

It should be noted that the care methods proposed by the present application include, but are not limited to, skin beauty, hair care, medicine care, and the like.

In practical applications, the present application has been found to have a relatively large effect on the average velocity of the final spray particles due to the viscosity of the care liquid to be used. In general, the higher the viscosity, the higher the average speed, but the higher the ratio, the more atomization is affected. The application researches and tests that the viscosity of the oil liquid is as follows: at water=40:60-60:40, fewer spray particles are produced than other treatment liquids are to be used. And from the research results, the viscosity is too large or too small to have adverse effects.

The application is based on a supersonic jet device, can realize that nursing liquid to be used is atomized into small liquid molecules directly and is sprayed to the position to be acted at high speed, replaces manual smearing, and improves the nursing effect. In addition, through optimizing parameters of the supersonic jet device, the ultrasonic jet device can optimally adjust the bearing capacity of different body parts, different nursing liquids to be used, different user conditions and the like, and meanwhile, the problem of user sanitation is solved. In practical application, can also adopt the feed liquor mouth of different diameters according to the nursing liquid that waits to use of different viscosities, satisfy the use of nursing liquid that waits to use of different viscosities, also can change different feed liquor mouths according to the difference of single injection volume, be suitable for extensively.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A supersonic jet device, which is characterized by comprising a liquid section (7), and an air inlet section (1), a contraction section (2), a throat section (3) and an expansion section (4) which are coaxially and sequentially connected;

defining one end of the air inlet section (1) close to the contraction section (2) as the rear end;

the air inlet section (1), the contraction section (2), the throat (3) and the expansion section (4) are axially communicated; the front end of the air inlet section (1) is provided with an opening to form an air inlet (5); the rear end of the expansion section (4) is provided with an opening to form an injection port (6);

The small end of the contraction section (2) faces backwards, and the small end of the expansion section (4) faces forwards;

The liquid section (7) is connected to the side wall of the throat part (3), and the liquid section (7) is communicated with the throat part (3);

The ratio of the axial length L1 to the axial length L2 is 0.6:1-0.85:1; wherein the axial length L1 is the axial length of the contraction section (2), and the axial length L2 is the axial length of the expansion section (4);

the contraction section (2), the throat section (3) and the expansion section (4) satisfy the following conditions:

The liquid velocity at the jet orifice (6) is brought to supersonic speed.

2. The supersonic jet apparatus of claim 1, further comprising a jet head (8);

the spray head (8) is detachably arranged at the rear end of the expansion section (4).

3. The supersonic jet apparatus according to claim 1 or 2, characterized in that the outer wall of the liquid section (7) or the air intake section (1) is provided with a detachable mounting structure for detachable connection with an external instrument.

4. A non-invasive ejection device comprising a liquid container (9); the method is characterized in that: further comprising a liquid feeding device, and a supersonic jet device according to any one of claims 1 to 3;

The liquid container (9) is detachably connected with the liquid section (7) in a sealing way, and the inside of the liquid container (9) is communicated with the inside of the liquid section (7);

the output end of the liquid conveying device is communicated with the inside of the liquid container (9) and is used for conveying liquid in the liquid container (9) into the liquid section (7).

5. The non-invasive spray device according to claim 4, wherein: the structure of the liquid conveying device is a piston (10) kinematic pair structure;

The piston (10) in the piston (10) kinematic pair structure is positioned in the liquid container (9).

6. The non-invasive spray device according to claim 4 or 5, characterized in that: also comprises a sealing cover (11);

The sealing cover (11) is detachably connected with the liquid inlet section and is used for sealing the inlet of the liquid inlet section.

7. An injection instrument comprises an instrument body and a hand tool; characterized by further comprising a non-invasive injection device according to any of claims 4 to 6;

The liquid container (9) is arranged at the front end of the hand tool;

the air inlet (5) is connected with an external air source.

8. The spraying apparatus of claim 7 wherein: the front end of the jet orifice (6) is provided with a distance positioning device for positioning the distance between the jet orifice (6) and the action of the jet instrument.

9. A method of care employing the spray apparatus of claims 7 to 8; the method is characterized in that:

-placing a care liquid to be used in the liquid container (9);

The air inlet (5) is ventilated through an external air source, and meanwhile, nursing liquid to be used in the liquid container (9) enters the throat part (3) according to a preset liquid outlet amount;

the nursing liquid to be used acts on the corresponding part through the jet orifice (6).

10. A method of care according to claim 9, characterized in that: the distance between the jet orifice (6) and the corresponding part is 18-25mm.