Portable lotion spraying device with pressure spraying mode

Abstract

The present invention relates to a portable lotion sprayer that is leak-proof, extremely clean to use, and has a simple structure and enhanced durability. The device comprises: a sprayer body housing a battery-powered compressor; a liquid reservoir coupled to the upper end of the sprayer body and filled with liquid cosmetics; a nozzle unit that utilizes air pressure generated by the compressor to draw the cosmetics from the reservoir and spray them in one direction; and an upper unit, comprising an upper shell, for covering the reservoir. The nozzle unit is characterized by comprising: a sprayer tube having a liquid inlet hole at its upper portion and a central channel transversely communicating with the liquid inlet hole; a piston that, when inserted into the channel of the sprayer tube, elastically moves horizontally to selectively open and close the channel; an action switch coupled to the piston; and a nozzle cap with a rear end screwed to the front end of the sprayer tube, thereby surrounding the front end of the sprayer tube. The nozzle cap utilizes air pressure generated by the compressor to generate negative pressure in the channel, and has a liquid spray hole at its central front end.

Description

Technical Field

[0001] The present invention relates to a lotion water spraying device, in particular to a portable lotion water spraying device with a pressure spraying mode, which does not leak, is very clean to use, has a simple structure and further improved durability. Background Art

[0002] Cosmetics used for beauty treatments come into direct contact with the skin and are therefore crucial for maintaining skin health. Recently, many women are experiencing skin problems caused by factors such as the environment, diet, and stress. Consequently, skin care is becoming increasingly important, and a wide variety of cosmetics and skincare products have emerged on the market.

[0003] Recently, a liquid cosmetic has been developed that is applied directly to the skin and has the effects of moisturizing, beautifying, and protecting skin health. In order to improve the skin's absorption capacity, this liquid cosmetic is usually sprayed onto the face in the form of tiny particles through a lotion spray device.

[0004] A lotion sprayer includes a small compressor that generates air pressure. This allows cosmetics to be sprayed along with the compressed air, reducing cosmetic consumption and atomizing the cosmetics, thereby enhancing their effectiveness. Typically, liquid cosmetics containing active ingredients beneficial to health are delivered to the skin via this lotion sprayer.

[0005] Existing spray-type cosmetics dispensers can leak a drop or two during use, making them inconvenient to use. This is especially true in sealed cosmetic capsules, which are equipped with vents for extracting the cosmetics. These vents can cause leakage. Leakage not only contaminates the cosmetics, but also wastes the cosmetics and can stain other items in the bag. Furthermore, the spray can form droplets, similar to saliva splashing, making it inconvenient to use.

[0006] Korean Patent Application No. 10-2017-0023673 discloses a compressed air-type lotion sprayer. Many of these devices require a cap that must be detached from the main body for use, making it very inconvenient to store. This means the cap must be removed each time the device is used and then replaced afterward, making it very inconvenient to use.

[0007] Furthermore, conventional spray devices open the nozzle hole by pulling back a pin-shaped nozzle. Consequently, the lotion is sprayed in droplet form during the initial and final stages of use. Specifically, the lotion is not sprayed in the form of fine particles, but rather in droplets, like spit.

[0008] As described above, the conventional lotion spraying device has many inconvenient problems. Summary of the Invention

[0009] Technical issues

[0010] To address the above-mentioned issues, the present invention aims to provide a lotion dispenser with an improved pressure spray mechanism. More specifically, the present invention provides a portable lotion dispenser with improved pressure spray mechanism that prevents even a few drops of liquid from leaking during use or portability, eliminates the need for a cap covering the nozzle, and eliminates the inconvenience of detaching and attaching the cap. The device also offers improved durability and maintains a fine, dense consistency of cosmetic particles during use.

[0011] Technical Solutions

[0012] The above-mentioned object is achieved by a lotion sprayer having the following features. The lotion sprayer comprises: a sprayer body, internally provided with a battery-activated compressor; a liquid tank coupled to the upper end of the sprayer body and filled with liquid cosmetics; a nozzle portion, which utilizes air pressure generated by the compressor to draw the cosmetics from the liquid tank and spray them in one direction; and an upper unit, comprising an upper shell for covering the liquid tank.

[0013] The nozzle portion comprises:

[0014] The spray tube body has a liquid inlet hole at its upper portion and a pipe in the center that is transversely connected to the liquid inlet hole; the piston, when inserted into the pipe of the spray tube body, performs elastic piston movement in the horizontal direction to selectively open and close the pipe; the action switch is connected to the piston;

[0015] It also includes: a nozzle cover, the rear end of which is screwed to the front end of the injection tube body, thereby surrounding the front end of the injection tube body, utilizing the air pressure generated by the compressor to generate negative pressure in the pipeline, and having a liquid injection hole at the center of its front end.

[0016] According to another feature of the present invention, the piston is provided with a piston head with an increased area, the pipeline is provided with a piston seat capable of mounting the piston head, and the piston is subjected to elastic force in the direction in which the piston head approaches the piston seat.

[0017] According to another feature of the present invention, the middle portion of the piston is provided with a groove along its circumferential direction, and the piston has a connecting hole with one end open to the groove and the other end open to the pipe; the piston can be provided with an O-ring centered on the groove for sealing at the front and rear.

[0018] The upper housing formed at the upper end of the spray device body can be closed in the form of a lid; the upper housing can be slid up and down and opened only within a certain range by the guide hook. Furthermore, the upper housing can be configured to block the liquid spray hole of the nozzle cover when closed, and to open the liquid spray hole when raised and opened.

[0019] According to another feature of the present invention, the liquid storage tank comprises:

[0020] An air inlet hole, which does not generate vacuum pressure when spraying the lotion, so that the lotion can be sprayed smoothly; a liquid discharge port, which discharges the lotion; and a pressure relief pipe, one end of which is connected to the air inlet hole and the other end extends to the interior of the liquid storage tank.

[0021] A liquid-leakage-proof pad for selectively opening and closing the air introduction hole is fixedly provided on the inner surface of the upper shell.

[0022] Effects of the Invention

[0023] Through the above structure, a portable lotion spray device is provided, which will not leak a drop or two of liquid during use or carrying, and has no cover covering the nozzle part, and does not have the problem of inconvenience in separating and combining the cover. The simple assembly can reduce the preparation cost, and the cosmetic particles can be kept in a fine shape during use, and the user experience is good.

[0024] According to the present invention, a portable lotion spraying device is provided, which selectively opens a pipe through piston movement, thereby solving the problem of lotion spraying in droplets. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of a portable lotion spraying device according to an embodiment of the present invention;

[0026] Figure 2 is a perspective view of a portable lotion spraying device in use according to an embodiment of the present invention;

[0027] Figure 3 is in accordance with Figure 1 The schematic cross-section obtained by line AA;

[0028] Figure 4 is in accordance with Figure 1 The usage status profile obtained by line AA;

[0029] Figure 5 is in accordance with Figure 1 Partial cross-sectional view obtained by AA line;

[0030] Figure 6 is based on Figure 3Another embodiment of the present invention is based on Figure 3 sectional view of

[0031] Figure 7 Is to show the use status according to Figure 1 The schematic cross-section obtained by line BB;

[0032] Figure 8 is a partially exploded perspective view of a liquid storage tank and a nozzle portion of a portable lotion spraying device according to an embodiment of the present invention;

[0033] Figure 9 is a perspective view of a portable lotion spraying device using a pressure spraying method according to an embodiment of the present invention;

[0034] Figure 10 is a perspective view of a portable lotion spraying device using a pressure spraying method according to an embodiment of the present invention;

[0035] Figure 11 is in accordance with Figure 10 The schematic cross-section obtained by line AA;

[0036] Figure 12 is in accordance with Figure 11 The schematic cross-section obtained by line BB;

[0037] Figure 13 is a partially exploded perspective view of a liquid storage tank and a nozzle portion of a portable lotion spraying device using a pressure spraying method according to an embodiment of the present invention;

[0038] Figure 14 is a structural diagram illustrating the function of a liquid storage tank of a portable lotion spraying device using a pressure spraying method according to an embodiment of the present invention;

[0039] Figure 15 is a cross-sectional view of a portable lotion spraying device using a pressure spraying method according to another embodiment of the present invention;

[0040] Figure 16 FIG. 1 is a cross-sectional view of a liquid storage tank of a portable pressure-spraying lotion spraying device according to another embodiment of the present invention.

[0041] Description of Reference Numerals

[0042] 1: Injection device body 3: Upper unit

[0043] 5: Service unit 7: Battery

[0044] 9: Control circuit 11: Compressor

[0045] 13: Liquid storage tank 15: Nozzle

[0046] 17: Upper shell 19: Nozzle cover switch

[0047] C: Toner

[0048] The most preferred embodiment

[0049] Below, we will refer to Figures 1 to 8 The specific contents of the present invention are described in detail.

[0050] The portable pressure spraying lotion spraying device (hereinafter referred to as "lotion spraying device") according to the present invention comprises a spraying device body 1 and an upper unit 3 coupled to the upper end of the spraying device body 1. A service unit 5 can be optionally added to the lower portion of the spraying device body 1.

[0051] The sprayer body is equipped with a rechargeable battery 7, a control circuit 9, and a compressor 11. The sprayer body 1 may be equipped with a charging port for charging. The compressor 11 is small and generates compressed air and supplies it to the nozzle. This configuration is identical to existing technology.

[0052] The upper unit 3 is coupled to the upper portion of the spray device body 1. The coupling can be performed by screws or by one touch.

[0053] The upper unit 3 includes: a liquid tank 13 for filling liquid cosmetics; a nozzle portion 15 that uses the air pressure generated by the compressor 11 to draw out the liquid cosmetics C filled in the liquid tank 13 and spray it in one direction; and an upper shell 17 for covering and wrapping the liquid tank 13.

[0054] The liquid storage tank 13 is funnel-shaped with a width at the top and a narrow width at the bottom, and a liquid discharge port 13a is provided at its lower end, particularly on the base plate. A perspective window for confirming the amount of liquid in the liquid storage tank 13 may be provided on the rear sidewall.

[0055] The nozzle portion 15 includes a spray tube 19 , a piston 21 , an actuation switch 23 , and a nozzle cover 25 .

[0056] The spray tube body 19 is provided with a conduit 27 as a liquid discharge passage. A liquid inlet hole 19a is provided at the upper rear portion of the spray tube body for introducing liquid discharged from the liquid storage tank 13. The conduit 27 communicates with the liquid inlet hole 19a and is disposed transversely along the length of the spray tube body 19.

[0057] The piston 21 is inserted into the pipe 27 of the spray tube body and performs elastic piston movement in the horizontal direction to selectively open and close the pipe.

[0058] The action switch 29 is connected to the piston 21, and the action switch 29 can be provided integrally or assembled with the piston 21 at the rear end thereof. The action switch 29 can be provided in a form exposed to the outside, or in a form locked so as to be unable to move when the upper shell 17 is closed. To this end, the action switch has a locking groove 33, into which the upper shell 17 is inserted when it is in a closed state, that is, in a lowered state. The action switch 23 can be activated when the upper shell 17 is in an open state, that is, in an ascending state. When the action switch 23 is pressed, the piston 21 opens the pipe 27, and the compressor 11 starts to start. The electric switches W1 and W2 can be linked with the action switch 23.

[0059] In order to surround the front end 19b of the spray pipe body, the rear end of the nozzle cover 25 is screwed to the front end of the spray pipe body. The nozzle cover 25 has a conical cylindrical shape.

[0060] The nozzle cap 25 generates a vacuum pressure in the duct 27 by the air pressure generated by the compressor 11. The nozzle cap 25 has a liquid injection hole 25a at the center of the front end thereof, which serves as the final outlet for injecting the lotion.

[0061] Hereinafter, an embodiment in which the pipe 27 is selectively opened and closed by the operation of the piston 21 will be described.

[0062] The piston 21 is provided with a piston head 35 having an enlarged area.

[0063] The pipe 27 has a piston seat 37 on which the piston head 35 is mounted. The piston 21 is subjected to an elastic force in the direction in which the piston head 35 approaches the piston seat 37. To this end, a coil spring 39 is provided, one end of which is directly or indirectly connected to the piston 21 and the other end of which supports the rear end of the injection pipe body 19.

[0064] An O-ring 41 is provided on the rod 21 a of the piston 21 to prevent the liquid from flowing out to the rear of the spray tube 19 .

[0065] The piston head 35 shown in the figure is similar to the head of a countersunk screw, but can be deformed into various shapes.

[0066] Hereinafter, the liquid storage tank 13 and its installation structure according to an embodiment of the present invention will be described.

[0067] The liquid storage tank 13 includes: an air inlet hole 53, which does not generate vacuum pressure when the lotion C is sprayed, so that the lotion can be sprayed smoothly; a liquid discharge port 13a, which discharges the lotion C; and a pressure relief pipe 55, one end of which is connected to the air inlet hole 53 and the other end extends into the interior of the liquid storage tank 13.

[0068] Furthermore, a second leak-proof pad 57 for selectively opening and closing the air introduction hole 53 is fixedly provided on the inner surface of the upper case 17 .

[0069] The following mainly refers to Figure 7 The installation structure and operation state of the upper case 17 provided at the upper end of the injection device body 1 will be described.

[0070] The upper housing 17 forms a lid around the liquid reservoir 13. A guide hook 47 is symmetrically formed on the spray device body 1, projecting upward. A guide groove 47a is formed on the outer side of the guide hook 47, extending vertically. A hooking protrusion 49 is formed on the lower inner sidewall of the upper housing 17, which inserts into the guide groove 47a. The upper housing 17 can slide up and down within a length corresponding to the length of the guide groove 47a.

[0071] In order to keep the upper shell 17 closed in a closed state, or to keep it open when one end is open, magnets M1 and M2 may be provided at various locations.

[0072] The upper shell 17 is configured to block the liquid injection hole 25a of the nozzle cover when closed and to open the liquid injection hole 25a when raised. A first liquid leakage prevention pad 51 is provided on the front inner side surface of the upper shell 17 in front of the liquid injection hole 25a.

[0073] Below, refer to Figure 6 Another embodiment of the present invention will now be described. According to this embodiment, a groove 43 is formed along the circumference of the piston 21' in its central portion. Furthermore, the piston 21' has a connecting hole 45, one end of which opens into the groove 43 and the other end into the pipe 27. O-rings 41, 41' can be provided on the piston 21', centered on the groove 43, for sealing purposes at the front and rear. The pipe 27 functions as a cylinder.

[0074] When the action switch 23 is pressed, the groove 43 moves to the position directly below the liquid introduction hole 19 a , so that the liquid can be discharged along the pipe 27 .

[0075] The upper housing 17 has an upper cover 29 that can be opened when replenishing lotion. The upper cover 29 is hinged and can be easily opened and stably fixed by magnets M1 and M2.

[0076] Below, refer to Figure 8 Still another embodiment of the present invention will be described.

[0077] This embodiment relates to the stopper 59 of the liquid storage tank. When the liquid storage tank is replenished with lotion, stopper 59 is opened, thereby opening the liquid inlet 13b. When stopper 59 is closed after replenishing the lotion, pressure is generated within the liquid storage tank 13. This embodiment addresses the problem of the lotion being ejected drop by drop due to pressure.

[0078] According to this embodiment, a plug 59 is inserted into and secured to the liquid inlet 13b. A vent pin 61 is provided at the lower end of the plug 59. The upper plate of the liquid storage tank 13 has the liquid inlet 13b and, adjacent thereto, a vent hole 62 for inserting the vent pin 61. During the insertion of the plug 59 and subsequently when the vent pin 61 is inserted, air is exhausted from the liquid storage tank 13 through the vent hole 62. Therefore, no pressure is generated in the liquid storage tank 13. Consequently, the likelihood of liquid being ejected from the nozzle portion 15 is extremely low.

[0079] Hereinafter, another embodiment of the present invention will be described.

[0080] According to another embodiment of the present invention, it is characterized in that it has a structure in which the nozzle cover is combined with the injection tube body 19. The joint of the nozzle cover 25 is composed of a screw portion 63 and a straight portion 65. The positional relationship between the nozzle cover 25 and the front end of the injection tube body is very critical to the injection quality. According to the present invention, a structure is provided that enables the nozzle cover 25 to be accurately aligned with the center relative to the injection tube body 19. The straight portion 65 plays the same guiding role as the sleeve with the minimum tolerance and is combined with the injection tube body 19 so that it is located at the center point. Compared with the case where assembly errors occur by screw connection, the straight portion 65 of the nozzle cover omits the assembly process, so that the particles can be kept in the same good condition as at the beginning even after long-term use. That is, it is conducive to improving the durability of the device.

[0081] According to another embodiment of the present invention, an infrared lamp 67 can be disposed around the nozzle cover to heat the lotion, eliminating the cooling sensation it feels when applied to the skin. It can also provide infrared light to the skin, doubling the effectiveness of the lotion. The infrared lamp 67 can be arranged in a ring shape, wrapping around the outer circumference of the nozzle cover. DETAILED DESCRIPTION

[0082] Below, refer to Figures 9 to 16 Other embodiments of the present invention will be described.

[0083] The portable pressure spraying lotion spraying device (hereinafter referred to as "lotion spraying device") according to the present invention comprises a spraying device body 1 and an upper unit 3 coupled to the upper end of the spraying device body 1. A service unit 5 can be optionally added to the lower portion of the spraying device body 1.

[0084] The spray device body is internally provided with a rechargeable battery 7, a control circuit 9, and an air pressure generator 11. The spray device body 1 may be provided with a charging port for charging. The air pressure generator 11 is a small compressor that generates compressed air and supplies it to the nozzle.

[0085] The important feature of the present invention lies in the liquid storage tank 13. The liquid storage tank 13 includes: a tank body 16; an air introduction hole 39 provided in the upper plate 16-1 of the tank body 16; and a pressure relief pipe 20 provided inside the liquid storage tank.

[0086] The liquid discharge port 13a is a hole for discharging the lotion and is provided at the lower end of the tank body 16 and is connected to the nozzle 27.

[0087] The air introduction hole 39 and the liquid discharge port 13a are components also present in the prior art. The upper plate 16-1 of the tank body 16 has a liquid inlet 16-2, and a plug 38 is inserted into the liquid inlet 16-2.

[0088] One end of the pressure relief tube 20 is connected to the air inlet hole 39, and the other end extends into the interior of the tank body 16. As shown in the figure, a connector protruding into the interior of the liquid storage tank can be provided on the air inlet hole 39 to connect the pressure relief tube 20. There are many ways to install the pressure relief tube 20, and the pressure relief tube 20 can also be inserted into a position that slightly protrudes from the exterior of the tank body 16 and then secured with adhesive.

[0089] According to an embodiment of the present invention, the pressure relief pipe 20 can be configured in a U-shape, with the curved portion being long enough to contact the bottom plate 16-3 of the tank body 16. The pressure relief pipe 20 is installed diagonally on the liquid storage tank 13, with its other end near the bottom surface of the upper plate 16-1 of the tank body 16. Furthermore, to prevent movement of the pressure relief pipe 20, the end of the pressure relief pipe 20 can be secured to a hook 20-1 provided on the inner wall of the tank body 16.

[0090] According to an embodiment of the present invention, for ease of installation, the pressure relief pipe 20 can also be configured to extend outside the liquid storage tank 13. The pressure relief pipe 20 can be in the form of an elongated tube and can be made of silicone, rubber, or other synthetic resins. The inner diameter of the pressure relief pipe 20 can be, for example, 0.3-5 mm.

[0091] The key point is that the lotion C cannot be discharged from the tank body 16 through the pressure relief pipe 20, but air can be introduced. Although air can pass through the pipe regardless of its diameter, the lotion cannot flow out of the tank body 16 through the pressure relief pipe 20 unless surface tension generates pressure inside the tank body 16.

[0092] The length of the pressure relief pipe 20 can be adjusted according to actual conditions. Figure 15 As shown, the length of the pressure relief pipe 20 may also be set to contact the bottom plate 16-3 of the tank body 16. When the pipe diameter is small or the viscosity of the lotion is high, the length of the pressure relief pipe 20 may be appropriately shortened.

[0093] According to the above construction, Figure 14 As shown in (a) and (b), when the liquid storage tank is tilted or inverted, the lotion C cannot be discharged through the pressure relief pipe 20 to the outside of the air introduction hole 39. Instead, air can be introduced into the tank body 16 by the negative pressure generated inside the tank body 16 during spraying.

[0094] The following describes another embodiment of the present invention. This embodiment relates to the upper unit 3. The upper unit 3 includes a liquid tank 13 for storing liquid cosmetics, and a nozzle 15 that uses the air pressure generated by the air pressure generator 11 to draw the liquid cosmetics from the liquid tank 13 and spray it in one direction.

[0095] The upper unit 3 further comprises an upper housing 17, a nozzle cover switch 19, and a main operating switch 21. A plug cover 23 is provided at the top end of the upper housing 17, and a sliding nozzle cover 25 is provided at the front. The nozzle cover switch 19 is provided at the front of the upper housing 17. The main operating switch 21 is provided at the rear of the upper housing 17.

[0096] The plug cover 23 is hingedly mounted on the upper housing 17 so as to be pivotally opened. It can be secured to the upper housing's horizontal plate 17a by the magnetic force of a cover-securing magnet 22 disposed within the upper housing 17. The cover-securing magnet 22 can be fixedly mounted on the bottom surface of the upper housing's horizontal plate 17a, and the plug cover 23 can comprise a magnetic metal sheet.

[0097] In order to use the liquid with almost no residual, the liquid outlet 13a of the liquid storage tank 13 can be set at its lowermost end. A perspective window 14 for observing the residual amount of the contents can be set on the rear side wall of the liquid storage tank 13.

[0098] The rear sidewall of the upper housing 17 has a transparent portion 18 at the same position as the transparent window 14 of the liquid reservoir 13. A plug cover 23 is provided at the top end of the upper housing 17, and a nozzle cover 25 is provided at the front, slidingly opening upward. A nozzle cover switch 19 is provided at the front of the upper housing 17, blocking the spray port of the nozzle 27. A main operating switch 21 is provided at the rear of the upper housing 17 and is pressed by a finger to operate the air pressure generator 11.

[0099] One end of the nozzle cover 25 is supported on the upper shell 17, and the other end is elastically supported upward by a first spring 29 supported on the nozzle cover 25. The nozzle cover switch 19 and the nozzle cover 25 are kept in a closed state by a cover holding member. Pressing the nozzle cover switch 19 will release the cover holding member, and the nozzle cover 25 will slide elastically. Figure 10 、 12The back of the nozzle cover 25 is attached with a water-absorbing pad 31 with a thickness that almost touches the front end of the nozzle 27. The water-absorbing pad 31 is used to absorb a small amount of lotion sprayed out due to pressure when replenishing the liquid.

[0100] The cover-holding component includes a pair of cover magnets 33, 33'. The first cover magnet 33 is fixed to the lower end of the nozzle cover 25, and the second cover magnet 33' is arranged at the upper end of the spray device body 1. The magnetic force of the cover magnets 33, 33' is set to be greater than the elastic force of the first spring 29. Only in this way can the nozzle cover 25 remain in the closed state. When the nozzle cover switch 19 is pressed horizontally, the cover magnets 33, 33' will be offset from each other, weakening the magnetic force. Therefore, the nozzle cover 25 will elastically slide upward through the first spring 29. The nozzle cover switch 19 is elastically activated in the horizontal direction by the second spring 35. When the nozzle cover switch 19 returns to its original position and the nozzle cover 25 is pressed downward, the cover magnets 33, 33' will re-attach, keeping the nozzle cover 25 in the closed state.

[0101] A locking component may be further provided as required to prevent the nozzle cover switch 19 from being pressed arbitrarily. For example, a method may be employed in which the user is required to slightly push the nozzle cover switch 19 upwards before the switch can be pressed.

[0102] According to an embodiment of the present invention, in order to prevent the main operation switch 21 from operating when the nozzle cover 25 is closed, a lock switch as a B contact switch is further provided. Figure 10 As shown, the lock switch may include a 1-1 signal magnet 37 provided at the lower end of the nozzle cover 25 and a 1-2 signal magnet 37' provided at the spray device body 1. Thus, the main operation switch 21 functions only when the nozzle cover 25 is open.

[0103] As shown in the figure, when the 1-1 signal magnet 37 and the 1-2 signal magnet 37' are separated, the main operation switch 21 functions.

[0104] However, instead of the 1-1 signal magnet 37 and the 1-2 signal magnet 37', the 3-1 signal magnet 75 and the 3-2 signal magnet 75' may be selectively provided to release the locking function when the nozzle cover 25 is in the most open state and enable the main operation switch 21 to be operated. Figure 11 and Figure 12 As shown, the 3-1st signal magnet 75 and the 3-2nd signal magnet 75 ′ may be disposed on the upper surface of the stopper 43 and the bottom surface of the plug cover 23 , respectively. Figure 12 The diagram shows a state in which the 3-1 signal magnet 75 and the 3-2 signal magnet 75' are in contact with each other, and the main operation switch 21 is functioning.

[0105] The plug cover 23 is basically provided for replenishing the lotion C to the liquid storage tank 13. Figure 9 、 11 The solid line in the figure shows the closed state. When adding liquid, the dotted line shows that the valve can be opened.

[0106] A plug 38 made of an elastic material such as rubber or silicon is attached to the upper end of the liquid storage tank 13. The user can detach the plug 38 to refill the lotion.

[0107] While the lotion L is being sprayed through the nozzle portion 15 , the lotion can be easily sprayed only by introducing air into the liquid tank 13 . Therefore, the liquid tank 13 is provided with an air introduction hole 39 .

[0108] According to another feature of the present invention, in order to open the plug cover 23 only when the nozzle cover 25 is closed, a cover opening restriction member is included. The cover opening restriction member includes: the plug cover 23, which is hinged about the hinge axis 41; and a stopper 43, which is formed on the inner surface of the nozzle cover 25. Figure 10 、 12 As shown, when the nozzle cover 25 slides open, the stopper 43 supports the bottom surface of one side of the plug cover 23 so that the plug cover 23 cannot rotate in a hinged manner.

[0109] The main operating switch 21 is resiliently supported by a third spring 45. The main operating switch 21 includes second signal magnets 47, 47', which function as A contacts. These second signal magnets 47, 47' can be positioned at the lower end of the main operating switch 21 and the upper end of the spray device body 1. When the main operating switch 21 is pressed, the second signal magnets 47, 47' function as switch contacts, generating a signal to operate the air pressure generator 11.

[0110] The following mainly refers to Figures 11 to 13 , the nozzle portion 15 will be described.

[0111] At the bottom end of the liquid storage tank 13, where the liquid outlet 13a is located, is a nozzle mounting portion 49, into which a first O-ring 51 is inserted. A discharge tube 55 is connected to the nozzle base 53. A first filter membrane 57 is inserted between the first O-rings 51. Made of graphene, the first filter membrane 57 prevents liquid leakage at room temperature and atmospheric pressure. Furthermore, the first filter membrane 57 has microscopic pores large enough to allow lotion to pass under pressure.

[0112] The first filter membrane 57 has micro-through pores of 10-50 μm and can be made of graphene.

[0113] The nozzle 27 includes a pin-shaped nozzle head 59, a housing 61 that surrounds and secures the nozzle head 59, and a nozzle mounting base 63 that secures the nozzle head 59 to the discharge pipe 55. The housing 61 is screwed to the nozzle mounting base 63. The nozzle head 59 has a pointed tip (59a) and a hole 59b at its center that serves as a passage for liquid discharge.

[0114] The nozzle head 59 is inserted into the peripheral portion of the ejection tube 55, with a pair of second O-rings 65 and a second filter membrane 67 inserted therebetween. The second filter membrane 67, like the first filter membrane (57), is a graphene film that prevents leakage at room temperature and atmospheric pressure, and allows the lotion to pass under pressure. The second O-rings 65 are respectively provided on both sides of the second filter membrane 67.

[0115] The nozzle head 59 is embedded in the nozzle mounting base 63. Figure 13 As shown, the nozzle mounting base 63 is screwed to the liquid reservoir 13. To this end, a screw connection tube 69 is formed on the front of the liquid reservoir 13, and the nozzle mounting base 63 has a screw fixing portion 71. Furthermore, the nozzle mounting base 63 has an air hole 73 for introducing air pressure into the space between the nozzle head 59 and the housing 61. For ease of installation, the air hole 73 is located in the center of the spray device body 1.

[0116] Compressed air generated by air pressure generator 11 rapidly passes through space S between nozzle tip 59 and housing 61. This reduces the pressure inside nozzle tip 59 according to Bernoulli's principle, allowing lotion L to be drawn in. As a result, lotion L, driven by negative pressure, passes through second and third filter membranes 57 and 67 and is sprayed from nozzle 27.

[0117] According to the present invention, it is characterized in that the air inlet hole 39 arranged at the upper end of the liquid storage tank 13 and the injection pipe of the nozzle part are respectively provided with filter membranes 40, 57, and 67 that can pass air but cannot pass liquid substances at normal temperature and atmospheric pressure.

[0118] Filter membranes 40, 57, and 67 can have micropores of varying sizes depending on their placement, but typically have pores averaging 10-50 μm. Filter membranes 40, 57, and 67 can be primarily made of graphene, but are not limited thereto. One of the second and third filter membranes 57 and 67 can be omitted. Graphene, a carbon isotrope composed solely of carbon atoms, is a new thin-film material with a single-layer honeycomb structure. This invention utilizes this graphene.

[0119] Below, refer to Figure 16 Another embodiment of the present invention will be described.

[0120] This embodiment relates to the stopper 38 of the liquid storage tank. To refill the liquid storage tank with lotion, this stopper 38 is opened, thereby opening the liquid inlet 16-2. When this stopper 38 is closed after refilling, pressure builds up inside the liquid storage tank 13. This embodiment addresses the issue of the pressure causing the lotion to be sprayed from the nozzle 27 in drops or so.

[0121] According to this embodiment, an L-shaped exhaust duct 38-3 is provided inside the plug 38. One end of the exhaust duct 38-3 is open to the lower end 38-1 of the plug, and the other end is open to the upper end 38-2 of the plug.

[0122] like Figure 16 As shown in (a), during the process of closing the plug, air is exhausted to the outside of the plug through the exhaust pipe 38-3. Therefore, no pressure is generated inside the tank body 16. The exhaust pipe 38-3 is closed only at the last moment of closing the plug (see Figure 16 (b)). Therefore, the pressure generated inside the tank body 16 during the process of opening and closing the stopper is extremely small. As a result, the possibility of liquid being ejected through the nozzle 27 is extremely low.

[0123] Industrial Applicability

[0124] The present invention provides a portable lotion spraying device with a pressure spraying mode, which does not leak, is very clean to use, has a simple structure and is more durable.

[0125] According to an embodiment of the present invention, the lower end of the spray device body 1 may further be integrated with a service unit 5. This service unit 5 can provide a light, a DC massager, an LED light for skin care, a vibrating massager, and the like. These are all convenient and beauty devices powered by a battery 7. The service unit 5 can be connected to the spray device body in a variety of ways.

[0126] The above-mentioned figures and descriptions are only preferred embodiments of the technical concept of the present invention. Those skilled in the art can make various modifications based on common technical knowledge, but these modifications all fall within the scope of protection of the present invention.

[0127] The above embodiments can be combined in various ways, and any possible combination is within the scope of the present invention.

Claims

1. A portable lotion spraying device, characterized in that: include: The injection device body has a compressor inside which is activated by a battery; a liquid storage tank coupled to the upper end of the spray device body and used for filling liquid cosmetics; a nozzle portion, which utilizes the air pressure generated by the compressor to draw out the cosmetics filled in the liquid storage tank and spray it in one direction; an upper unit consisting of an upper shell for covering the liquid storage tank; The nozzle portion comprises: The spray tube body has a liquid inlet hole at its upper portion and a pipe in the center that is transversely connected to the liquid inlet hole; the piston, when inserted into the pipe of the spray tube body, performs elastic piston movement in the horizontal direction to selectively open and close the pipe; the action switch is connected to the piston; The nozzle cover further comprises: a nozzle cover having a rear end screwed to the front end of the spray pipe body, thereby surrounding the front end of the spray pipe body, utilizing the air pressure generated by the compressor to generate negative pressure in the pipe, and having a liquid injection hole at the center of the front end thereof; By pressing the action switch, the piston moves forward along the pressing direction of the action switch, thereby opening the channel and allowing the cosmetics to be drawn out.

2. The portable lotion spraying device according to claim 1, characterized in that: The piston is provided with a piston head with an increased area, the pipeline has a piston seat capable of mounting the piston head, and the piston is subjected to elastic force in a direction in which the piston head approaches the piston seat.

3. The portable lotion spraying device according to claim 1, characterized in that: The middle portion of the piston is provided with a groove along its circumferential direction, and the piston has a connecting hole with one end open to the groove and the other end open to the pipe; The piston is provided with O-rings for sealing at the front and rear with the groove as the center.

4. The portable lotion spraying device according to claim 1, characterized in that: The upper shell formed on the upper end of the spray device body is covered in the form of a lid; the upper shell is opened by sliding in the vertical direction only in a certain section through the guide hook; In addition, the upper case is configured to block the liquid ejection hole of the nozzle cover in a closed state and to open the liquid ejection hole in a raised and open state.

5. The portable lotion spraying device according to claim 1, characterized in that: The liquid storage tank comprises: an air inlet hole, which does not generate vacuum pressure when spraying the lotion, thereby allowing the lotion to spray smoothly; a liquid discharge port, which discharges the lotion; and a pressure relief pipe, one end of which is connected to the air inlet hole and the other end of which extends into the interior of the liquid storage tank; The inner surface of the upper shell is provided with a liquid leakage-proof pad for selectively opening and closing the air introduction hole.

6. The portable lotion spraying device according to claim 1, characterized in that: The joint portion of the nozzle cover is composed of a screw portion and a straight portion; The straight portion performs the same guiding function as the sleeve with minimal tolerances and is coupled to the spray tube body so that it is located at the center point.

7. The portable lotion spraying device according to claim 1, characterized in that: An infrared lamp is arranged around the nozzle cover to provide infrared rays to the skin.

8. The portable lotion spraying device according to claim 1, characterized in that: The upper shell covers the periphery of the liquid storage tank in the form of a lid; The spray device body is symmetrically formed with a guide hook protruding upward; The outer side surface of the guide hook is provided with a guide groove which is long in the up-down direction; A hooking protrusion is formed on the lower portion of the inner side wall of the upper shell and is inserted into the guide groove; The upper shell slides up and down within a length range corresponding to the guide groove and opens.

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