Lip plumper

Abstract

The application belongs to the technical field of lip cosmetic instruments, and particularly relates to a lip augmentation instrument, which comprises a shell, a negative pressure generating device, an end cover and a lip device. The shell is provided with a mounting port, the negative pressure generating device is arranged in the shell, the end cover is arranged in the mounting port, the end cover is provided with a first air duct, one end of the first air duct is connected with the negative pressure generating device, the lip device is detachably connected with the end cover, the lip device is provided with a second air duct, one side of the lip device away from the end cover is provided with an open end matched with the shape of a lip, and the other end of the second air duct is communicated with the open end. When the lip device is connected with the end cover, the other end of the first air duct is communicated with the second air duct, and the negative pressure generating device forms a relative negative pressure in the cavity of the lip device through the communicated first air duct and second air duct. The technical scheme provided by the application aims to solve the problem that when the lip device of the lip augmentation instrument is cleaned, water easily penetrates into the interior of the lip augmentation instrument, causing short circuit and damage of electronic components.

Description

Technical Field

[0001] This application belongs to the field of lip cosmetic device technology, and in particular relates to a lip plumping device. Background Technology

[0002] With the development of beauty devices, lip enhancement tools for achieving lip plumping have appeared on the market. Most current lip plumping devices utilize the principle of vacuum, creating a relative negative pressure in the cavity of the lip instrument that contacts the lips. This means the lip instrument suctions the lips, causing blood to flow to the lips and controllably increasing the permeability of the capillaries, thereby achieving the goal of plumping and making the lips more rosy and beautiful.

[0003] During lip plumping procedures, the device's applicator comes into contact with the lips, making it susceptible to saliva residue. Therefore, users need to clean the applicator frequently to reduce the possibility of bacterial growth. However, to meet the need for portability, current lip plumping devices are designed and manufactured in a compact, one-piece structure. Users typically rinse the entire device while cleaning, which allows water to seep into the internal components and potentially short-circuit and damage them. Utility Model Content

[0004] The purpose of this application is to provide a lip plumping device that solves the problem that water can easily seep into the interior of the lip plumping device when the lip applicator is cleaned, causing short circuits and damage to electronic components.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a lip plumping device, comprising a housing, a negative pressure generating device, an end cap, and a lip applicator. The housing has an installation port, the negative pressure generating device is disposed inside the housing, the end cap is detachably connected to the installation port, the end cap has a first air passage, one end of the first air passage is connected to the negative pressure generating device, the lip applicator is detachably connected to the end cap, the lip applicator has a second air passage, and the side of the lip applicator facing away from the end cap has an open end adapted to the shape of the lips, the other end of the second air passage communicates with the open end. When the lip applicator is connected to the end cap, the other end of the first air passage communicates with the second air passage, and the negative pressure generating device creates a relative negative pressure in the cavity of the lip applicator through the communicating first and second air passages.

[0006] In some embodiments, the end cap is provided with a first connecting portion, and the end of the first air passage away from the negative pressure generating device is provided at the first connecting portion; the lip device includes a body and a second connecting portion, one end of the second air passage is provided at the second connecting portion, the first connecting portion and the second connecting portion are detachably connected, and the open end is provided on the side of the body away from the second connecting portion.

[0007] In some embodiments, one of the first connecting portion and the second connecting portion is configured as a connecting post, and the other of the first connecting portion and the second connecting portion is configured as an insertion hole. The connecting post is inserted into the insertion hole. One of the circumferential cylindrical surface of the connecting post and the circumferential hole wall of the insertion hole is provided with an annular protrusion, and the other of the circumferential cylindrical surface of the connecting post and the circumferential hole wall of the insertion hole is provided with an annular groove. The annular protrusion is engaged with the annular groove to prevent the connecting post from disengaging from the insertion hole.

[0008] In some embodiments, the circumferential cylindrical surface of the connecting post is provided with an annular mounting groove, and a sealing ring is installed in the annular mounting groove. The sealing ring abuts against the circumferential wall of the insertion hole when the connecting post is inserted into the insertion hole to form a seal.

[0009] In some embodiments, the lip plumping device further includes a one-way passage member disposed in a first airway or a second airway, which opens when the negative pressure generating device creates a relative negative pressure in the cavity of the lip device.

[0010] In some embodiments, the end cap is further provided with a first positioning structure, and the body of the lip is provided with a second positioning structure. The first positioning structure and the second positioning structure cooperate with each other to prevent the lip from rotating relative to the end cap about the axis of the connecting post.

[0011] In some embodiments, the lip plumping device also includes a light therapy lamp, which is mounted on the end cap. The lip device has a light-transmitting area, and the light-transmitting area and the light therapy lamp are directly opposite each other when the lip device is connected to the end cap. The light therapy lamp emits light and illuminates the lips through the light-transmitting area.

[0012] In some embodiments, the lip plumping device also includes a main control board and a battery. Both the main control board and the battery are installed inside the housing and are electrically connected to the battery. The negative pressure generating device and the phototherapy lamp are also electrically connected to the main control board.

[0013] In some embodiments, the lip plumper also includes a pressure sensor mounted on the cavity wall of the lip plumper, and the pressure sensor is electrically connected to the main control board when the lip plumper is connected to the end cap.

[0014] In some embodiments, the lip plumper also includes a protective cover and a UV lamp, the UV lamp being mounted on the inner wall of the protective cover, the protective cover being closed to the housing to cover and protect the lip plumper, and the UV lamp being electrically connected to the main control board when the protective cover is closed to the housing.

[0015] This application has at least the following beneficial effects: In the lip plumping device provided in this application embodiment, a negative pressure generating device is installed inside the housing. An end cap is located at the mounting opening of the housing, and one end of the first air channel of the end cap is connected to the negative pressure generating device. The lip applicator is detachably connected to the end cap and communicates with the first air channel through its own second air channel. The open end of the lip applicator facing away from the end cap adapts to the shape of the lips. When the lip applicator fits the lips, the negative pressure generating device is activated, reducing the air density inside the cavity of the lip applicator through the connected first and second air channels, creating a relative negative pressure, thereby achieving the effect of negative pressure lip plumping. After the user performs a cosmetic procedure on the lips using the lip plumping device provided in this application embodiment, the lip applicator needs to be cleaned. Due to the detachable connection between the lip applicator and the end cap, the user can remove the lip applicator from the end cap and then clean it separately. Thus, the lip applicator is detached from the end cap during cleaning, eliminating the need to rinse the entire device, thereby preventing water from seeping into the interior of the housing and protecting electronic components such as the negative pressure generating device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the lip plumping device according to an embodiment of this application. Figure 1 ; Figure 2 for Figure 1 An exploded view of the lip plumping device is shown; Figure 3 This is a three-dimensional structural diagram of the lip plumping device according to an embodiment of this application. Figure 2 ; Figure 4 for Figure 3 An exploded view of the lip plumping device is shown; Figure 5 This is a three-dimensional structural diagram of the lip plumping device according to an embodiment of this application. Figure 3 The protective cover was opened. Figure 6 This is a cross-sectional schematic diagram of a lip plumping device according to an embodiment of this application; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 This is a cross-sectional schematic diagram of another lip plumping device according to an embodiment of this application; Figure 9 for Figure 8 Enlarged diagram of point B in the middle.

[0018] The figures in the diagram are labeled as follows: 10. Housing; 11. Mounting port; 20. Negative pressure generating device; 30. End cap; 31. First air passage; 32. First connecting part; 33. Annular groove; 35. First positioning structure; 40. Lip device; 41. Second airway; 42. Opening end; 43. Body; 44. Second connecting part; 45. Annular protrusion; 46. Second positioning structure; 47. Light-transmitting area; 48. Annular mounting groove; 50. Sealing ring; 60. One-way passage component; 70. Phototherapy lamp; 81. Main control board; 811. Buttons; 82. Battery; 83. Pressure sensor; 84. UV lamp; 90. Protective cover. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] like Figures 1 to 7 As shown, the lip plumping device provided in the embodiments of this application includes a housing 10, a negative pressure generating device 20, an end cap 30, and a lip applicator 40. The housing 10 has an installation port 11, and the end cap 30 is disposed in the installation port 11 (the end cap 30 can be fixed to the installation port 11 by screws or adhesive, or it can be detachably assembled to the installation port 11 by a snap-fit ​​method). The negative pressure generating device 20 is disposed inside the housing 10, that is, the negative pressure generating device 20 is disposed inside the cavity formed by the housing 10 and the end cap 30 covering each other. The end cap 30 has a first air passage 31, one end of which is connected to the negative pressure generating device 20. The lip applicator 40 is detachably connected to the end cap 30, and the lip applicator 40 has a second air passage 41. The side of the lip applicator 40 away from the end cap 30 has an open end 42 adapted to the shape of the lips, and the other end of the second air passage 41 communicates with the open end 42. When the lip applicator 40 is connected to the end cap 30, the other end of the first airway 31 is connected to the second airway 41, and the negative pressure generating device 20 creates a relative negative pressure in the cavity of the lip applicator 40 through the connected first airway 31 and second airway 41. In other words, when the user connects the lip applicator 40 to the end cap 30 and applies the lip plumping device to the lips, the user places the open end 42 of the lip applicator 40 against the lips, and then activates the negative pressure generating device 20. The negative pressure generating device 20 reduces the air density in the cavity of the lip applicator 40 through the first airway 31 and second airway 41, thereby creating a relative negative pressure in the cavity of the lip applicator 40. Under this relative negative pressure, the lips are drawn into the cavity of the lip applicator 40. This causes the capillaries in the lips to become congested, making the lips appear rosy. Furthermore, after the capillaries in the lips remain congested for a period of time, the permeability of the capillaries in the lips increases, and the lips become slightly swollen. At this point, the user removes the lip plumping device from their lips, and the lips will appear full and rosy, achieving the goal of plumping and beautifying the lips.

[0024] The relative negative pressure is relative to the standard atmospheric pressure. When the opening end 42 of the lip device 40 just comes into contact with the lip, the air pressure in the cavity of the lip device 40 is basically equal to the standard atmospheric pressure. When the negative pressure generating device 20 reduces the air density in the cavity of the lip device 40, the air pressure in the cavity of the lip device 40 decreases, that is, the cavity of the lip device 40 forms a relative negative pressure.

[0025] In some embodiments of this application, the negative pressure generating device 20 can be an air pump. The air pump draws air from the cavity of the lip device 40 through the first air passage 31 and the second air passage 41, reducing the air volume in the cavity of the lip device 40 while keeping the total volume for holding the air constant. This reduces the air density and air pressure in the cavity of the lip device 40, thus creating a relative negative pressure in the cavity of the lip device 40. In other embodiments of this application, the negative pressure generating device 20 can also be a space expansion device, such as a piston cylinder. The piston cylinder is connected to the cavity of the lip device 40 through the first air passage 31 and the second air passage 41. After the user places the open end 42 of the lip device 40 onto the lips, the piston is pulled, increasing the total volume of the piston cylinder, the first air passage 31, the second air passage 41, and the cavity of the lip device 40, while keeping the total gas volume constant. This reduces the air density and air pressure in the cavity of the lip device 40, thus creating a relative negative pressure in the cavity of the lip device 40.

[0026] In the lip plumping device provided in this application embodiment, a negative pressure generating device 20 is installed inside the housing 10. An end cap 30 is located at the mounting port 11 of the housing 10, and one end of the first air passage 31 of the end cap 30 is connected to the negative pressure generating device 20. A lip applicator 40 is detachably connected to the end cap 30 and communicates with the first air passage 31 through its own second air passage 41. The opening end 42 of the lip applicator 40 on the side opposite to the end cap 30 is adapted to the shape of the lips. When the lip applicator 40 fits the lips, the negative pressure generating device 20 is activated, reducing the air density inside the cavity of the lip applicator 40 through the connected first air passage 31 and second air passage 41, creating a relative negative pressure, thereby achieving the effect of negative pressure lip plumping. After the user performs a cosmetic procedure on the lips using the lip plumping device provided in this application embodiment, the user needs to clean the lip applicator 40. The user removes the lip applicator 40 from the end cap 30 and then cleans it separately. In this way, the lip device 40 is detached from the end cap 30 when being cleaned, thereby preventing water from seeping into the interior of the housing 10 and protecting electronic components such as the negative pressure generating device 20.

[0027] In the embodiments of this application, such as Figure 2 and Figure 4 As shown, the lip plumper also includes a main control board 81 and a battery 82. Both the main control board 81 and the battery 82 are installed inside the housing 10. The main control board 81 is electrically connected to the battery 82, and the negative pressure generating device 20 is electrically connected to the main control board 81. A low-power negative pressure generating device 20 is sufficient to meet the suction requirements. Therefore, this lip plumper is equipped with a built-in battery 82 to provide power to the negative pressure generating device 20, which is controlled by the main control board 81, making it convenient for users to carry during travel. Preferably, the battery 82 is a rechargeable lithium-ion battery, nickel-metal hydride battery, lead-acid battery, or lithium polymer battery.

[0028] Of course, the negative pressure generating device 20 can also be powered directly by connecting wires to the household circuit. In this case, the main control board 81 can be located at the plug of the connecting wires.

[0029] The embodiments of this application preferably employ a built-in battery 82, and the following description will use the battery 82 as an example.

[0030] like Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, the end cap 30 is provided with a first connecting portion 32, and the end of the first air passage 31 away from the negative pressure generating device 20 is located at the first connecting portion 32. Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, the lip plumper 40 includes a body 43 and a second connecting part 44. One end of the second air passage 41 is located at the second connecting part 44, and the open end 42 is located on the side of the body 43 opposite to the second connecting part 44. When the lip plumper 40 is installed onto the end cap 30, the first connecting part 32 and the second connecting part 44 can be detachably connected. In this lip plumper, the connection relationship between the first connecting part 32 and the second connecting part 44 is defined, allowing the user to quickly connect the first connecting part 32 and the second connecting part 44. The assembly operation is simple, convenient, and quick.

[0031] One of the first connecting portion 32 and the second connecting portion 44 is configured as a connecting post, and the other of the first connecting portion 32 and the second connecting portion 44 is configured as an insertion hole, with the connecting post inserted into the insertion hole. For example, in some embodiments, the first connecting portion 32 is a connecting post, and the second connecting portion 44 is an insertion hole, with the connecting post inserted into the insertion hole. In other embodiments, the first connecting portion 32 is an insertion hole, and the second connecting portion 44 is a connecting post, with the connecting post inserted into the insertion hole.

[0032] Specifically, in some embodiments of this application, such as Figure 2 As shown, the first connecting portion 32 is preferably configured as an insertion hole; as Figure 4 As shown, the second connecting part 44 is preferably configured as a connecting post. In this way, when installing the lip device 40 onto the end cap 30, simply align the connecting post with the insertion hole and then insert it forcefully to complete the assembly operation between the lip device 40 and the end cap 30, which is convenient and quick.

[0033] One of the circumferential cylindrical surface of the connecting post and the circumferential hole wall of the insertion hole is provided with an annular protrusion 45, and the other of the circumferential cylindrical surface of the connecting post and the circumferential hole wall of the insertion hole is provided with an annular groove 33. The annular protrusion 45 is engaged with the annular groove 33 to prevent the connecting post from disengaging from the insertion hole.

[0034] For example, in some embodiments, the circumferential cylindrical surface of the connecting post is provided with an annular groove 33, and the circumferential hole wall of the insertion hole has an annular protrusion 45, which engages with the annular groove 33 to prevent the connecting post from disengaging from the insertion hole.

[0035] In some embodiments, such as Figure 7 As shown, the circumferential cylindrical surface of the connecting post has an annular protrusion 45, and the circumferential wall of the insertion hole has an annular groove 33. The annular protrusion 45 engages with the annular groove 33 to prevent the connecting post from disengaging from the insertion hole. During the user's lip plumping operation, the annular protrusion 45 and the annular groove 33 mutually block and restrict each other, making it difficult for the lip device 40 to fall off the end cap 30, thus ensuring the stability of the connection between the lip device 40 and the end cap 30. When the user needs to remove the lip device 40 from the end cap 30, the user only needs to apply force to pull the lip device 40 outward, so that the annular protrusion 45 overcomes the restriction of the annular groove 33, and the connecting post of the lip device 40 can be pulled out of the insertion hole of the end cap 30, and then the lip device 40 can be cleaned.

[0036] In some embodiments, a seal can be achieved between the connecting post and the insertion hole by means of an annular protrusion 45 engaging with an annular groove 33. Alternatively, in other embodiments, such as Figure 9 As shown, the circumferential cylindrical surface of the connecting column is provided with an annular mounting groove 48, and a sealing ring 50 is installed in the annular mounting groove 48. The sealing ring 50 abuts against the circumferential wall of the insertion hole when the connecting column is inserted into the insertion hole to form a seal. That is to say, when the lip device 40 is installed on the end cap 30, it is necessary to ensure that the mating position between the first air passage 31 and the second air passage 41 is sealed to prevent air leakage when the negative pressure generating device 20 is pumping air, and to prevent air leakage when the cavity of the lip device 40 is kept under relative negative pressure.

[0037] In the embodiments of this application, such as Figure 2 , Figure 4 and Figure 7As shown, the lip plumping device also includes a one-way passage member 60, which is located in the first airway 31 or the second airway 41. The one-way passage member 60 opens when the negative pressure generating device 20 creates a relative negative pressure in the cavity of the lip device 40. By providing the one-way passage member 60, when the negative pressure generating device 20 is pumping air, the air in the cavity of the lip device 40 can flow through the one-way passage member 60, thus creating a relative negative pressure in the cavity of the lip device 40. When the negative pressure generating device 20 stops pumping air, since external air cannot enter the cavity of the lip device 40 through the one-way passage member 60, the relative negative pressure in the cavity of the lip device 40 remains stable. Furthermore, when the lip plumper is idle, the second airway 41 is connected to the outside. At this time, the one-way passage 60 is closed. The one-way passage 60 can prevent dust, debris and other foreign objects from entering and contaminating or blocking the airway through the second airway 41 and the first airway 31, thereby helping to ensure the smooth flow and cleanliness of the airway.

[0038] The one-way passage component 60 can be a one-way valve, preferably located at the end of the second airway 41 furthest from the opening end 42. In this case, the user cannot open the one-way valve from outside the lip plumper to remove the relative negative pressure in the cavity of the lip plumper 40. However, the relative negative pressure used for adsorption on the lips is not much different from the standard atmospheric pressure, and the user can remove the lip plumper from the lips with just a little force. Alternatively, the one-way passage component 60 can be a solenoid valve, preferably located at the end of the first airway 31 furthest from the negative pressure generating device 20. In this case, the user can control the solenoid valve to open, allowing external air to enter the cavity of the lip plumper 40 through the solenoid valve, thus removing the relative negative pressure in the cavity of the lip plumper 40, and the opening end 42 will automatically detach from the lips.

[0039] like Figure 2 and Figure 4 As shown, the end cap 30 is further provided with a first positioning structure 35, and the body 43 of the lip device 40 is provided with a second positioning structure 46. When the lip device 40 is installed onto the end cap 30, the first positioning structure 35 and the second positioning structure 46 cooperate with each other to prevent the lip device 40 from rotating relative to the end cap 30 around the axis of the connecting post, thus maintaining the stability of the lip device 40 on the end cap 30. Furthermore, since the first positioning structure 35 and the second positioning structure 46 cooperate to achieve positioning, the lip device 40 can be quickly and accurately installed onto the end cap 30, improving the installation efficiency of installing the lip device 40 onto the end cap 30.

[0040] In some embodiments, the first positioning structure 35 is disposed on the circumferential edge of the end cap 30, and the second positioning structure 46 is disposed on the circumferential edge of the lip device 40. In this embodiment, the first positioning structure 35 is preferably a positioning groove, and the second positioning structure 46 is preferably a positioning protrusion adapted to be fitted into the positioning groove. Alternatively, in other embodiments, the first positioning structure 35 is disposed on the circumferential wall of the insertion hole, and the second positioning structure 46 is disposed on the circumferential cylindrical surface of the connecting post. Specifically, the connecting post can be configured as a prism, and the insertion hole can be configured as a prism-shaped insertion hole adapted to be inserted into the prism. Alternatively, the circumferential cylindrical surface of the connecting post is provided with a positioning pin, and the circumferential wall of the insertion hole is provided with a positioning pin hole adapted to be positioned with the positioning pin. When the connecting post is inserted into the insertion hole, the first positioning structure 35 and the second positioning structure 46 are also engaged, thereby preventing the lip device 40 from rotating relative to the end cap 30 around the axis of the connecting post.

[0041] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the lip plumping device also includes a phototherapy lamp 70, which is mounted on the end cap 30 and electrically connected to the main control board 81. Figures 5 to 7 As shown, the lip maker 40 has a light-transmitting area 47, which faces the light-curing lamp 70 when the lip maker 40 is connected to the end cap 30. When the user activates the light-curing lamp 70 via the operation button 811 on the main control board 81, the light-curing lamp 70 emits light and illuminates the lips through the light-transmitting area 47. The light emitted by the light-curing lamp 70 can be red light with a wavelength of 630nm-700nm, near-infrared light with a wavelength of 700nm-1200nm, narrow-spectrum UVB with a wavelength of approximately 311nm, blue light with a wavelength of 400nm-500nm (especially blue light with a wavelength of 415nm), or yellow light with a wavelength of 570nm-590nm. Preferably, the light emitted by the light-curing lamp 70 is red light with a wavelength of 630nm-700nm, which can reduce inflammation caused by congestion on the lip surface and alleviate the user's discomfort.

[0042] In order to accurately control the relative negative pressure of the cavity of the lip device 40, such as Figure 8 As shown, the lip plumping device also includes a pressure sensor 83, which is installed on the cavity wall of the lip applicator 40 and is waterproof. The pressure sensor 83 is electrically connected to the main control board 81 when the lip applicator 40 is connected to the end cap 30. When the negative pressure generating device 20 pumps air, the pressure sensor 83 monitors the air pressure in the cavity of the lip applicator 40 in real time. When the preset air pressure threshold (e.g., -30kPa to -45kPa) is reached, the main control board 81 will control the negative pressure generating device 20 to stop pumping air, thereby keeping the air pressure in the cavity of the lip applicator 40 stable and acting on the lips, achieving the purpose of accurately controlling the relative negative pressure level of the cavity of the lip applicator 40.

[0043] In some embodiments, such as Figure 8 As shown, the lip plumper also includes a protective cover 90 and a UV lamp 84. The UV lamp 84 is installed on the inner wall of the protective cover 90. The protective cover 90 closes to the housing 10 to cover and protect the lip applicator 40. The UV lamp 84 is electrically connected to the main control board 81 when the protective cover 90 is closed to the housing 10. Although cleaning the lip applicator 40 can largely clean it, some dirt may remain on its surface, leading to bacterial growth. Therefore, when the user does not need to use the lip plumper, the user closes the protective cover 90. The main control board 81 then controls the battery 82 to power the UV lamp 84, which emits ultraviolet light to irradiate the surface of the lip applicator 40, thereby further sterilizing and disinfecting the surface of the lip applicator 40. Furthermore, the protective cover 90 prevents dust and debris from contacting the lip applicator 40, which helps maintain its cleanliness.

[0044] In other embodiments, the lip plumper only includes a protective cover 90, which covers and protects the lip device 40, preventing dust and debris from contacting the lip device 40 and helping to maintain the cleanliness of the lip device 40.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lip plumping device, characterized in that, include: The housing has an installation port; A negative pressure generating device is disposed inside the housing; An end cap is provided at the mounting port, and the end cap is provided with a first air passage, one end of which is connected to the negative pressure generating device. The lip device is detachably connected to the end cap. The lip device is provided with a second air passage. The side of the lip device opposite to the end cap is provided with an open end that is adapted to the shape of the lips. The other end of the second air passage is connected to the open end. When the lip device is connected to the end cap, the other end of the first airway is connected to the second airway, and the negative pressure generating device creates a relative negative pressure in the cavity of the lip device through the connected first and second airways.

2. The lip plumping device according to claim 1, characterized in that, The end cap is provided with a first connecting part, and the end of the first air passage away from the negative pressure generating device is located at the first connecting part. The lip device includes a body and a second connecting part. One end of the second airway is located at the second connecting part. The first connecting part and the second connecting part are detachably connected. The opening end is located on the side of the body opposite to the second connecting part.

3. The lip plumping device according to claim 2, characterized in that, One of the first connecting part and the second connecting part is configured as a connecting post, and the other of the first connecting part and the second connecting part is configured as an insertion hole. The connecting post is inserted into the insertion hole. One of the circumferential cylindrical surface of the connecting post and the circumferential hole wall of the insertion hole is provided with an annular protrusion, and the other of the circumferential cylindrical surface of the connecting post and the circumferential hole wall of the insertion hole is provided with an annular groove. The annular protrusion is engaged with the annular groove to prevent the connecting post from disengaging from the insertion hole.

4. The lip plumping device according to claim 3, characterized in that, The connecting post has an annular mounting groove on its circumferential cylindrical surface. A sealing ring is installed in the annular mounting groove. When the connecting post is inserted into the insertion hole, the sealing ring abuts against the circumferential hole wall of the insertion hole to form a seal.

5. The lip plumping device according to any one of claims 1-4, characterized in that, The lip plumping device also includes a one-way passage component, which is disposed in the first airway or the second airway. The one-way passage component opens when the negative pressure generating device creates a relative negative pressure in the cavity of the lip device.

6. The lip plumping device according to any one of claims 3-4, characterized in that, The end cap is further provided with a first positioning structure, and the body is provided with a second positioning structure. The first positioning structure and the second positioning structure cooperate with each other to prevent the lip from rotating relative to the end cap about the axis of the connecting post.

7. The lip plumping device according to claim 6, characterized in that, The lip plumping device also includes a light therapy lamp, which is installed on the end cap. The lip device has a light-transmitting area, which is directly opposite to the light therapy lamp when the lip device is connected to the end cap. The light therapy lamp emits light and illuminates the lips through the light-transmitting area.

8. The lip plumping device according to claim 7, characterized in that, The lip plumping device also includes a main control board and a battery. The main control board and the battery are both installed inside the housing. The main control board is electrically connected to the battery. The negative pressure generating device and the phototherapy lamp are both electrically connected to the main control board.

9. The lip plumping device according to claim 8, characterized in that, The lip plumping device also includes a pressure sensor, which is installed on the cavity wall of the lip device and is electrically connected to the main control board when the lip device is connected to the end cap.

10. The lip plumping device according to claim 8, characterized in that, The lip plumping device also includes a protective cover and a UV lamp. The UV lamp is installed on the inner wall of the protective cover. The protective cover is closed to the housing to cover and protect the lip plumping device. The UV lamp is electrically connected to the main control board when the protective cover is closed to the housing.

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