Cosmetic assembly, dosing device and cosmetic device

Abstract

This utility model relates to the technical field of water-light beauty devices, and particularly to beauty components, quantitative liquid dispensing devices, and beauty devices. Key technical points include: a main body component, which has a liquid dispensing channel and a quantitative chamber connected to the liquid dispensing channel; a quantitative pushing component disposed on the main body component, used to draw the essence into the quantitative chamber; under the action of external force, the quantitative pushing component is used to circulate and push the essence in the quantitative chamber to the liquid dispensing channel; and a one-way valve disposed on the liquid dispensing channel, used to guide the essence to flow outward through the liquid dispensing channel. This utility model solves the problem of difficulty in controlling the amount of essence dispensed under negative pressure conditions in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of water-light beauty devices, and in particular to beauty components, quantitative liquid dispensing devices, and beauty devices. Background Technology

[0002] A water-light beauty device is a home-use beauty device that uses microneedling or high-pressure jet technology to deliver beauty ingredients into the skin's surface. It mainly delivers nutrients such as serums and hyaluronic acid into the skin to achieve effects such as hydration, anti-aging, and whitening.

[0003] Currently, beauty devices offer a wide range of functions, and their structures are constantly evolving with technological advancements. However, most beauty devices still have shortcomings. For example, in practical applications, the amount of liquid dispensed is often difficult to control, resulting in inaccurate application of serum to the skin. When the liquid dispensing is too low, it fails to meet the skin's absorption needs, while excessive dispensing can lead to serum waste and negatively impact the user experience. Therefore, there is currently a lack of a solution that can dispense liquid in precise quantities to meet users' skincare needs and enhance their overall experience.

[0004] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0005] This invention provides a beauty component, a quantitative dispensing device, and a beauty instrument to solve the problem of difficulty in controlling the amount of essence dispensed under negative pressure conditions in the prior art.

[0006] To achieve the above objectives, in the first aspect, this utility model provides a beauty component using the following technical solution:

[0007] A beauty component, comprising:

[0008] The main body is provided with a liquid outlet channel and a metering chamber, and the metering chamber is connected to the liquid outlet channel.

[0009] A quantitative delivery component, disposed on the main body, is used to draw the essence into the quantitative chamber; under the action of external force, the quantitative delivery component is used to circulate and push the essence in the quantitative chamber to the liquid outlet channel;

[0010] And a one-way valve, located in the liquid outlet channel, for guiding the essence to flow outward through the liquid outlet channel.

[0011] Preferably, the quantitative delivery component includes a piston, which is movably disposed within the quantitative chamber.

[0012] When the piston moves to the first position, it draws the essence into the metering chamber;

[0013] When the piston moves to the second position, it pushes the essence into the outlet channel and prevents the essence from flowing into the metering chamber.

[0014] Preferably, the quantitative delivery component further includes an elastic element, which is connected to the piston and the inner wall of the quantitative chamber respectively;

[0015] When liquid is discharged, the piston moves to the second position and compresses the elastic element;

[0016] When liquid is drawn in, the elastic element returns to its original position and pushes the piston to the first position.

[0017] Preferably, the piston comprises:

[0018] The sliding part is slidably connected to the inner wall of the metering cavity;

[0019] A positioning part is provided at one end of the sliding part, the elastic element is located in the metering cavity, and one end of the elastic element is connected to the positioning part.

[0020] Preferably, the metering delivery component further includes a sealing ring for sealing the gap between the piston and the wall of the metering chamber.

[0021] Preferably, it also includes a beauty head, which includes a core body connected to the main body, and the core body is provided with a liquid outlet that communicates with the liquid outlet channel.

[0022] Preferably, the core is provided with microneedles and / or electrodes, and the microneedles and / or electrodes are located on the same surface of the core as the liquid outlet.

[0023] Preferably, the beauty head further includes:

[0024] An adsorption sleeve is fitted over the outside of the core, and a negative pressure cavity is formed between the core and the adsorption sleeve.

[0025] Secondly, this utility model provides a quantitative liquid dispensing device with the following solution:

[0026] A metering device, including a beauty component, further includes:

[0027] The liquid storage chamber is connected to the metering chamber and used to store the essence, and the liquid storage chamber is also connected to the outside air;

[0028] An external power source is connected to the quantitative delivery component, which provides external force to the quantitative delivery component to achieve the delivery of the essence.

[0029] Preferably, the external power source includes:

[0030] Air pump module with positive pressure interface;

[0031] A positive pressure pipeline is connected to both the positive pressure interface and the metering chamber, and the air pump module delivers positive pressure to the metering push component through the positive pressure pipeline.

[0032] And a positive pressure valve, connected to the positive pressure pipeline, for releasing positive pressure.

[0033] Preferably, when the beauty component includes an absorbent sleeve, the external power source further includes a negative pressure pipe and a negative pressure valve;

[0034] The air pump module is a dual-head negative pressure air pump. The dual-head negative pressure air pump also has a first negative pressure interface. The negative pressure pipeline is connected to the first negative pressure interface and the negative pressure cavity respectively. The dual-head negative pressure air pump draws negative pressure from the negative pressure cavity through the negative pressure pipeline. The negative pressure valve is connected to the negative pressure pipeline and is used to release the negative pressure in the negative pressure pipeline.

[0035] Alternatively, the air pump module includes a positive pressure pump and a negative pressure pump. The positive pressure interface is located on the positive pressure pump, and the negative pressure pump is provided with a second negative pressure interface. The negative pressure pipeline is connected to the second negative pressure interface and the negative pressure cavity respectively. The negative pressure pump draws negative pressure from the negative pressure cavity through the negative pressure pipeline. The negative pressure valve is connected to the negative pressure pipeline and is used to release the negative pressure in the negative pressure pipeline.

[0036] Preferably, the liquid storage cavity is disposed on the main body component;

[0037] Alternatively, it may include a container detachably connected to the main body, wherein the liquid storage chamber is formed in the container.

[0038] Preferably, the main body is provided with a pressure relief hole, which is used to connect the positive pressure pipe to the outside air.

[0039] Thirdly, this utility model provides a beauty device with the following technical solution:

[0040] A beauty device, including a metering liquid dispensing device, and further comprising:

[0041] The beauty device body, wherein the quantitative liquid dispensing device is disposed on the beauty device body;

[0042] And a treatment head, which is disposed on the body of the beauty device;

[0043] The treatment head includes an electrode treatment head and / or an ultrasonic transducer treatment head, used for skin care.

[0044] Preferably, the discharge frequency of the electrode care head is 2.5KHz-3.5KHz.

[0045] Preferably, it also includes a vibration motor, which is connected to the beauty head and is used to drive the beauty head to reciprocate.

[0046] Fourthly, this utility model provides a control method using the following technical solution:

[0047] A control method based on a quantitative liquid dispensing device, the quantitative liquid dispensing device comprising a quantitative pushing component, a quantitative chamber, a positive pressure valve, an external power source, and a positive pressure pipeline, comprising the following steps:

[0048] The positive pressure valve is opened and the metering push component is reset to control the essence to be drawn into the metering chamber;

[0049] Immediately after the event, the positive pressure valve is closed to isolate the positive pressure pipeline from the outside environment.

[0050] The external power source is turned on to send gas into the positive pressure pipeline, so that the gas pushes the metering push component to compress the metering chamber.

[0051] After the second time, the positive pressure valve is opened to connect the positive pressure pipeline to the outside, release the gas in the positive pressure pipeline, control the quantitative delivery component to reset, and at the same time re-inhale the essence into the quantitative chamber.

[0052] Preferably, the quantitative liquid dispensing device further includes a negative pressure valve, a negative pressure pipeline, and a negative pressure chamber;

[0053] The control method also includes the following steps:

[0054] The negative pressure valve is closed to isolate the negative pressure pipeline from the outside environment;

[0055] The external power source is turned on to draw air from the negative pressure pipe, causing the negative pressure cavity to form an adsorption force.

[0056] After the third time, the negative pressure valve is opened to connect the negative pressure pipeline to the outside and release the adsorption force in the negative pressure cavity.

[0057] Compared with the prior art, the present invention has the following beneficial effects:

[0058] The beauty component, quantitative dispensing device, and beauty instrument provided by this utility model, in order to achieve the quantitative dispensing function, firstly, by driving the quantitative pushing component to move, the essence is drawn into the quantitative chamber. Then, the quantitative pushing component compresses the quantitative chamber, thereby quantitatively delivering the essence to the dispensing channel, realizing the dispensing action. Because the volume of the quantitative chamber is controllable during the setting, the quantitative dispensing effect of the essence can be achieved during the compression of the quantitative chamber. More importantly, during the process of the essence being drawn into the quantitative chamber, the one-way valve can prevent the essence and air from flowing back from the dispensing channel into the quantitative chamber, thereby improving the stability of the essence during the liquid absorption process. Even if the essence outlet is exposed to a negative pressure environment, the dispensing volume of the essence can still be well controlled.

[0059] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0060] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0061] Figure 1 This is a schematic diagram of the structure of the beauty component provided in this embodiment of the utility model;

[0062] Figure 2 This is a cross-sectional view of the beauty component provided in this embodiment of the utility model;

[0063] Figure 3 This is a cross-sectional view of the beauty component provided in this embodiment of the utility model from another perspective;

[0064] Figure 4 This is a schematic diagram of one embodiment of the quantitative liquid dispensing device provided in this utility model.

[0065] Figure 5 This is a schematic diagram of another embodiment of the quantitative liquid dispensing device provided in this utility model.

[0066] Figure 6 This is a cross-sectional view of one embodiment of the quantitative liquid dispensing device provided in this utility model.

[0067] Figure 7This is a cross-sectional view of another embodiment of the quantitative liquid dispensing device provided in this utility model;

[0068] Figure 8 This is a schematic diagram of the structure of the beauty device provided in this embodiment of the utility model;

[0069] Figure 9 This is a schematic diagram of the structure of the vibration motor, vibration connector, and quantitative liquid dispensing device provided in the embodiments of this utility model.

[0070] Figure label:

[0071] 100. Beauty components; 200. Quantitative dispensing device; 300. Beauty instrument; 400. Negative pressure chamber;

[0072] 1. Main body; 101. Metering pipe; 102. Outlet; 103. Pressure relief hole; 104. Pin; 105. Air inlet;

[0073] 2. Quantitative delivery component; 21. Piston; 211. Sliding part; 212. Positioning part; 22. Elastic element; 23. Sealing ring;

[0074] 3. Check valve;

[0075] 4. Liquid outlet channel; 41. Liquid outlet pipe;

[0076] 5. Quantitative cavity;

[0077] 6. Beauty head; 61. Core body; 611. Liquid outlet; 612. Core tube; 62. Adsorption sleeve;

[0078] 7. Liquid storage chamber; 71. Partition; 72. Container;

[0079] 8. External power source; 81. Air pump module; 811. Dual-head negative pressure air pump; 812. Positive pressure pump; 813. Negative pressure pump; 82. Positive pressure pipeline; 83. Positive pressure interface; 84. Positive pressure valve; 85. Negative pressure pipeline; 86. Negative pressure valve; 87. First negative pressure interface; 88. Second negative pressure interface;

[0080] 9. Beauty device body; 91. First clearance opening; 92. Installation port;

[0081] 10. Head care;

[0082] 11. Vibration motor; 111. Vibration connector; 112. Second clearance opening. Detailed Implementation

[0083] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0084] In the description of this utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component that is centrally positioned therein. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be a component that is centrally positioned therein.

[0085] Furthermore, terms such as "long," "short," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of this utility model.

[0086] Existing beauty devices typically feature functions such as serum dispensing and negative pressure skin absorption. However, in practical applications, the amount of serum dispensed under negative pressure is often difficult to control. Specifically, there is currently a lack of a structural solution capable of controlling serum dispensing. To overcome this challenge, the following section discusses... Figure 1-9 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0087] Please refer to Figure 1 and Figure 2 The present invention first provides a beauty component 100, which can be assembled onto the body of the beauty device 300, specifically including a main body 1, a quantitative push component 2, and a one-way valve 3.

[0088] Optionally, in one embodiment, the main body 1 is a hollow shell structure, and in another embodiment, it can be a solid block structure. Compared with a solid structure, the main body 1 with a shell structure can further reduce the structural weight and reduce material waste while meeting the basic structural strength requirements. Therefore, the following embodiment will use the shell structure of the main body 1 as an example for explanation. It is understood that no matter what specific structure the main body 1 adopts, it should be included in the scope of the shell explanation. The specific setting method of the main body 1 is not limited here.

[0089] Reference Figure 2 and Figure 3 In this embodiment, the main body 1 is provided with a liquid outlet channel 4 and a metering chamber 5, and the metering chamber 5 is connected to the liquid outlet channel 4. Specifically, in this embodiment, a metering pipe 101 is provided within the main body 1, with both ends of the metering pipe 101 being open, and the metering chamber 5 is formed within the metering pipe 101. In addition, the main body 1 of this embodiment is also provided with a liquid outlet pipe 41, which is fixedly installed on the main body 1, and one end of the liquid outlet pipe 41 is connected to the metering pipe 101. The liquid outlet channel 4 is formed within the liquid outlet pipe 41, thereby achieving mutual communication between the metering chamber 5 and the liquid outlet channel 4.

[0090] Optionally, the liquid outlet channel 4 and the metering chamber 5 may also be replaced by features such as grooves or holes instead of the pipe structure in this application. No restrictions are placed on the configuration of the liquid outlet channel 4 and the metering chamber 5. Regardless of the configuration method, they should be included in the scope of this solution.

[0091] Furthermore, the quantitative push component 2 is disposed on the main body 1, and in this embodiment, the quantitative push component 2 is located within the quantitative cavity 5. The quantitative push component 2 is used to draw the essence into the quantitative cavity 5. At this time, an external force needs to be introduced to make the quantitative push component 2 move. It can be understood that the external force can be understood as a pushing force. The external force will be explained in detail below, and will not be explained in detail here. At this time, when the essence flows into the quantitative cavity 5, under the action of the external force, the quantitative push component 2 is used to circulate and push the essence in the quantitative cavity 5 to the liquid outlet channel 4, and then flow to the user's skin through the liquid outlet channel 4, realizing the liquid pushing action.

[0092] Based on this, the quantitative push component 2 in this embodiment needs to circulate the essence into the quantitative chamber 5 by resetting. However, since the quantitative chamber 5 and the liquid outlet channel 4 are bidirectional under normal conditions, in order to prevent the essence and air that have flowed into the liquid outlet channel 4 from flowing back into the quantitative chamber 5, a one-way valve 3 is provided in the liquid outlet channel 4.

[0093] Specifically, the one-way valve 3 is installed in the liquid outlet pipe 41. The one-way valve 3 is used to guide the essence to flow outward through the liquid outlet channel 4. The essence and air achieve one-way flow, which ultimately enables the quantitative push component 2 to draw the essence into the quantitative chamber 5 and push the essence into the liquid outlet channel 4.

[0094] Based on the above structural configuration, under the action of external force, the quantitative push component 2 can draw the essence into the quantitative chamber 5. Then, the external force drives the quantitative push component 2 to push the essence from the quantitative chamber 5 to the liquid outlet channel 4. Since the volume of the quantitative chamber 5 is fixed, the quantitative dispensing function can be realized. More importantly, during the process of the essence being drawn into the quantitative chamber 5, the one-way valve 3 can prevent the essence and air from flowing back from the liquid outlet channel 4 into the quantitative chamber 5, thereby ensuring the stability of the essence during the liquid drawing process. The quantitative dispensing function is realized, and the problem of difficulty in controlling the amount of essence dispensed under negative pressure is solved.

[0095] Furthermore, continue to refer to Figure 2 and Figure 3 The metering delivery component 2 includes a piston 21, which is movably disposed within the metering chamber 5. Typically, the outer contour of the piston 21 matches the shape contour of the metering chamber 5. By assembling the piston 21 into the metering chamber 5, the piston 21 can slide against the inner wall of the metering chamber 5, thus enabling the piston 21 to move within the metering chamber 5. Furthermore, the piston 21 can block the end of the metering chamber 5 away from the liquid outlet channel 4, thereby compressing the volume of the essence contained in the metering chamber 5 during its movement.

[0096] Specifically, to facilitate the demonstration of the liquid suction and dispensing process of piston 21, this embodiment selects two points along the length of the metering chamber 5 (i.e., the direction away from or near the liquid outlet channel 4), namely the first position and the second position, and defines the first position as α and the second position as β. (See attached diagram.) Figure 3 In order to allow the essence to enter the metering chamber 5 from the outside, the metering pipe 101 is provided with an outlet 102 that communicates with the metering chamber 5.

[0097] When piston 21 moves toward the first position α, piston 21 moves away from the liquid outlet channel 4, and at the same time expands the volume of the metering chamber 5 to accommodate the essence. At this time, negative pressure can be generated in the metering chamber 5, thereby drawing the essence into the metering chamber 5 through the outlet 102. In addition, when piston 21 moves to the second position, piston 21 compresses the volume of the metering chamber 5 to accommodate the essence. At this time, the essence can be pushed to the liquid outlet channel 4. During this process, piston 21 blocks the outlet 102, thereby preventing the essence from flowing back from the metering chamber 5 to the outlet 102, thus avoiding the backflow of the essence, and finally being able to stably complete the liquid suction and push actions.

[0098] It is understandable that the outlet 102 can be connected to the metering chamber 5 at any position along its length, but different connection areas have different effects. Optionally, the outlet 102 can be set in the area between the piston 21 and the liquid outlet channel 4, and connected to the metering chamber 5 in the area near the first position α. ​​The purpose of this setting is that when the piston 21 moves toward the second position β, the piston 21 can block the outlet 102 as early as possible, thereby preventing too much essence from flowing back to the outlet 102.

[0099] Furthermore, the quantitative pushing component 2 of this embodiment also includes an elastic element 22. The elastic element 22 can be a spring, torsion spring, sheet metal, rubber or other elastic element. The specific structure of the elastic element 22 is not limited here. In this embodiment, the elastic element is a spring. The spring is located in the quantitative cavity 5 and is connected to the piston 21 and the inner wall of the quantitative cavity 5 respectively, thereby providing elastic force to the piston 21.

[0100] The specific working states of the elastic element 22 are as follows:

[0101] When liquid is discharged, piston 21 moves to the second position and compresses elastic element 22, at which time elastic element 22 accumulates elastic force; when liquid is drawn in, elastic element 22 resets and releases elastic force, thereby pushing piston 21 to the first position.

[0102] By adopting the above configuration, the piston 21 can be self-reset under the support of the elastic element 22. At this time, it is only necessary to control the start and stop of the external force to control the liquid suction and liquid discharge actions. The control method is simple and efficient.

[0103] Furthermore, continue to refer to Figure 3 In this embodiment, the piston 21 includes a sliding part 211 and a positioning part 212. The cross-section of the metering cavity 5 in this embodiment is circular. Correspondingly, both the sliding part 211 and the positioning part 212 are cylindrical. The positioning part 212 is fixedly disposed at one end of the sliding part 211 and is positioned opposite to the liquid outlet channel 4. The diameter of the sliding part 211 is adapted to the inner diameter of the metering cavity 5, thereby allowing the sliding part 211 to slide against the inner wall of the metering pipe 101 and to block the outlet 102. Simultaneously, an elastic element 22 is located inside the metering cavity 5, and one end of the elastic element 22 is connected to the positioning part 212. Specifically, when the elastic element 22 is a spring, the positioning part 212 is inserted into the spring's port for fixation.

[0104] In the embodiment where the elastic element 22 is a spring, by placing the spring in the metering cavity 5 and connecting one end of the spring to the positioning part 212, the structure can be made more compact, and the stability of the spring during the extension and contraction process can be improved. The spring is not easily twisted during the extension and contraction process, and thus the reset action of the piston 21 is more stable.

[0105] In another embodiment, the outer diameter of the spring can be matched with the inner diameter of the metering cavity 5, which can also prevent the spring from twisting and deforming during the extension and contraction process. Regardless of the solution adopted, it should be included in the scope of this solution.

[0106] Furthermore, the quantitative delivery component 2 also includes a sealing ring 23, which is disposed between the piston and the wall of the quantitative chamber 5 and is used to seal the gap between the piston 21 and the wall of the quantitative chamber 5. Specifically, an annular groove can be provided on the periphery of the piston 21, and the sealing ring 23 is installed by embedding it into the annular groove. The sealing ring 23 is used to prevent gas from entering the quantitative chamber, thereby preventing it from affecting the liquid dispensing action; or the sealing ring 23 is used to prevent the essence in the quantitative chamber 5 from flowing back to the outlet 102. In this case, the sealing ring 23 can be disposed at the end of the piston 21 near the liquid flow channel 4, so that even if the piston 21 moves to the second position β, the problem of essence backflow can still be solved. Optionally, the sealing ring 23 can be configured as multiple layers, such as two layers, three layers, etc. Multiple sealing rings 23 can further improve the sealing performance of the piston 21. The specific number of sealing rings 23 can be adjusted according to actual needs, and there is no specific limitation on the specific number of sealing rings 23.

[0107] Reference Figure 3 To ensure precise application of the serum to the user's skin, the beauty component 100 provided in this embodiment also includes a beauty head 6, which includes a core 61. The core 61 is disposed on the main body 1. Specifically, in this embodiment, the core 61 has a cylindrical structure, with one end of the core 61 fixedly connected to one end of the main body 1. At the same time, the core 61 is provided with a core tube 612 and a liquid outlet 611, and the liquid outlet channel 4 is connected to the liquid outlet 611 through the core tube 612.

[0108] At this point, the serum can finally be dispensed from the outlet 611, and the beauty head 6 can precisely apply the serum to the user's skin by contacting the skin.

[0109] Furthermore, to enhance the penetration-enhancing effect of the beauty component 100, the core 61 is provided with microneedles and / or electrodes, which are located on the same surface of the core 61 as the liquid outlet 611.

[0110] Specifically, microneedle chips can be installed on the core 61. The microneedles are the needles on the microneedle chips. The microneedles can pierce the stratum corneum of the skin to form microchannels, and enable the essence to reach the deeper layers of the skin through the microchannels, thereby improving the penetration effect of the essence. In addition, the electrodes can conduct current, which can also promote the absorption of the essence.

[0111] The microneedles and electrodes can be arranged in at least three ways on the core 61. In one embodiment, the core 61 is provided with only microneedles, and the beauty head 6 has only microneedle care function. In the second embodiment, the core 61 is provided with only electrodes, and the beauty head 6 has only current care function. In the third embodiment, the core 61 is provided with both microneedles and electrodes, and the beauty head 6 has both microneedle care and current care functions. The specific combination of microneedles and electrodes can be adjusted according to actual needs and is not specifically limited here.

[0112] Understandably, when the beauty head 6 is equipped with electrodes, the beauty component is equipped with electrical contacts for electrically connecting the electrodes of the beauty head 6 and the external circuit. When the beauty component is electrically connected to the external circuit, the electrodes can stimulate the skin to achieve the effects of promoting penetration and beautifying the skin.

[0113] Furthermore, the beauty head 6 also includes an adsorption sleeve 62, which is fitted over the outside of the core 61. A negative pressure cavity 400 is formed between the core 61 and the adsorption sleeve 62. This cavity is used to draw air out of the negative pressure cavity 400 to create a negative pressure area, thereby enabling the adsorption sleeve 62 to adhere to the skin and allowing the core 61 to apply liquid within a specific precise range.

[0114] Reference Figure 4 In some embodiments, this application further provides a quantitative liquid dispensing device 200, which includes the beauty component 100 described above. The relevant structure of the beauty component 100 is as described above, and the specific structure of the beauty component 100 will not be repeated here. Furthermore, the quantitative liquid dispensing device 200 also includes a liquid storage chamber 7 and an external power source 8.

[0115] The liquid storage chamber 7 is connected to the metering chamber 5 and is used to store the essence. The liquid storage chamber 7 is also connected to the external air. Specifically, the liquid storage chamber 7 and the metering chamber 5 are connected through the outlet 102. The external power source 8 is connected to the metering push component 2 and is used to provide external power to the metering push component 2 to realize the push of the essence.

[0116] In this embodiment, the external power source 8 includes an air pump module 81, a positive pressure pipe 82, and a positive pressure valve 84. The air pump module 81 has a positive pressure interface 83 through which it delivers gas. Simultaneously, both ends of the positive pressure pipe 82 are fixedly connected to the positive pressure interface 83 and one end of the metering pipe 101, respectively. The positive pressure pipe 82 is connected to both the positive pressure interface 83 and the metering chamber 5. The air pump module 81 can deliver gas to the metering push component 2 through the positive pressure pipe 82, thereby applying pressure to the metering push component 2 and pushing the piston 21 towards the second position, achieving the liquid dispensing action quickly and efficiently.

[0117] Meanwhile, a positive pressure valve 84 is installed in the positive pressure pipeline 82. The positive pressure valve 84 is used to control the pressure of the gas on the metering push component 2. When the gas in the positive pressure pipeline 82 is released, the piston 21 can be reset under the push of the elastic element 22.

[0118] In another alternative embodiment, the external power source 8 can also be replaced by a motor element capable of outputting reciprocating motion. By connecting the output shaft of the motor element to the piston 21, compression action can also be achieved. Therefore, this embodiment does not limit the specific setting of the external power source 8. Any scheme that can drive the piston 21 to move should be included in the scope of this explanation of the external power source 8.

[0119] Furthermore, when the beauty component 100 includes the adsorption sleeve 62, the external power source 8 can also be used to draw air from the negative pressure chamber 400 to achieve the adsorption of the adsorption sleeve 62 onto the skin, thus improving the compactness of the structure and simplifying its complexity. Specifically, the external power source 8 also includes a negative pressure pipe 85 and a negative pressure valve 86.

[0120] At this time, in order to simultaneously drive the piston 21 to discharge liquid and draw air from the negative pressure chamber 400 to adsorb the skin, the external power source 8 can adopt various structural methods. This embodiment mainly provides two examples. In one embodiment, the air pump module 81 is a dual-head negative pressure air pump 811. The positive pressure interface 83 is located on the dual-head negative pressure air pump 811, and the dual-head negative pressure air pump 811 also has a first negative pressure interface 87. The dual-head negative pressure air pump 811 can draw air through the first negative pressure interface 87 and can also send air out through the positive pressure interface 83, and has the function of simultaneously sending and drawing air. At this time, the negative pressure pipe 85 is connected to the first negative pressure interface 87 and the negative pressure chamber 400 respectively. The dual-head negative pressure air pump 811 draws air from the negative pressure chamber 400 through the negative pressure pipe 85, so that the adsorption sleeve 62 can adsorb the skin for positioning, and realize the function of simultaneously discharging liquid and adsorbing the skin.

[0121] Furthermore, a negative pressure valve 86 is installed in the negative pressure pipeline 85. The negative pressure valve 86 is used to release the negative pressure in the negative pressure pipeline 85. When the negative pressure in the negative pressure pipeline 85 is released, the pressure of the negative pressure chamber 400 can be made consistent with the atmospheric pressure, and the adsorption sleeve 62 can be loosened from the skin, making it easier for the user to switch the application position on the skin, making the operation more convenient.

[0122] It is understood that the positive pressure valve 84 and the negative pressure valve 86 in this embodiment both adopt a solenoid valve structure, which can achieve rapid opening and closing through circuit control, thereby making the negative pressure adsorption action and the air discharge action more sensitive and faster. In other embodiments, other valve body structures may also be used. The specific structure of the positive pressure valve 84 and the negative pressure valve 86 is not limited here. As long as a valve body structure is used, it should be included in the interpretation scope of the positive pressure valve 84 and the negative pressure valve 86.

[0123] In another embodiment, the air pump module 81 includes a positive pressure pump 812 and a negative pressure pump 813, as shown in the figure. Figure 5 At this time, the air pump module 81 adopts a dual-pump scheme. The positive pressure interface 83 is located on the positive pressure pump 812, and the negative pressure pump 813 is provided with a second negative pressure interface 88. The negative pressure pipeline 85 is connected to the second negative pressure interface 88 and the negative pressure cavity 400 respectively. The negative pressure pump 813 draws negative pressure from the negative pressure cavity 400 through the negative pressure pipeline 85. The negative pressure valve 86 is located on the negative pressure pipeline 85 and is used to release the negative pressure in the negative pressure pipeline 85.

[0124] In this embodiment, by employing independent positive pressure pump 812 and negative pressure pump 813, the air delivery and suction actions can be controlled separately. Furthermore, the dual-pump scheme allows the positive pressure pump 812 and negative pressure pump 813 to use pump body components with different power to obtain different suction and thrust, adjust the liquid output force and negative suction force, thereby better meeting specific usage requirements and making the combination more flexible.

[0125] Here, both single-pump and dual-pump solutions can be used to achieve liquid discharge and adsorption functions, and the setup is flexible and versatile.

[0126] Furthermore, to achieve the liquid storage function, the liquid storage chamber 7 can be configured in various ways. For example, in one embodiment, refer to... Figure 6 The liquid storage chamber 7 is located on the main body 1.

[0127] Specifically, a partition 71 is provided inside the main body 1 to separate an independent space, which can form a reservoir 7 for storing essence. An outlet 102 is provided on the partition 71. At the same time, an addition port is provided in the main body 1 to replenish the essence. In addition, in order to connect the reservoir 7 with the outside, an air inlet 105 can be provided through the main body 1, and the air inlet 105 is connected to both the reservoir 7 and the outside. Thus, the reservoir 7 is connected to the outside through the air inlet 105.

[0128] With the above settings, while ensuring the basic function of serum delivery is realized, it also allows users to inject different serums according to their needs, thus meeting the different needs of users.

[0129] Optionally, a transparent window can be further provided on the main body 1, through which the remaining amount of essence can be observed.

[0130] Alternatively, in another implementation, refer to Figure 7 The quantitative dispensing device 200 also includes a container 72 detachably connected to the main body 1, and a storage chamber 7 is formed in the container 72. Specifically, the container 72 can be a vial structure, a soft bag structure, or other container 72 capable of storing essence. In this embodiment, a vial structure with higher hygiene standards is selected. In this case, the internal space of the container 72 forms the storage chamber 7. By setting a pin 104 on the main body 1 and setting the outlet 102 on the pin 104, the pin 104 can be inserted and removed from the container 72, making essence replenishment convenient and efficient, and further optimizing the convenience of observing the remaining amount of essence.

[0131] Meanwhile, in order to connect the liquid storage chamber 2 with the outside, an air inlet 105 is provided on the insertion pin 104. The air inlet 105 is connected to the liquid storage chamber 7 and the outside. Thus, the liquid storage chamber 7 is connected to the outside through the air inlet 105.

[0132] Furthermore, a pressure relief hole 103 is provided on the main body 1. The pressure relief hole 103 is used to connect the positive pressure pipe 82 with the outside air. In this embodiment, the pressure relief hole 103 is provided through the metering pipe 101 and is connected to the cavity on the side of the piston 21 away from the liquid outlet channel 4. Therefore, the pressure relief hole 103 is connected to the positive pressure pipe 82. It should be explained that the inner cavity of the main body 1 in this embodiment can also be regarded as the outside air, because the inner cavity of the main body 1 is connected to the outside.

[0133] Thus, by setting a pressure relief hole 103 on the main body 1, after the essence is propelled, the liquid outlet channel 4 is blocked by the piston 21. Since the negative pressure chamber 400 is relatively large, the negative pressure within it may not have reached the rated value, resulting in the essence not being fully applied to the skin. At this point, the piston 21 needs to be held for a period of time to wait for the negative pressure to reach the rated value. However, during this process, gas is continuously introduced into the positive pressure pipe 82. To prevent the sealing ring 23 on the piston 21 from being dislodged by the continuously increasing gas, the internal pressure of the positive pressure pipe 82 can achieve pressure balance through the pressure relief hole 103. This prevents the sealing ring 23 from being dislodged due to the continuous operation of the air pump module 81, thereby preventing further gas from entering the liquid storage chamber 7. It is understood that the sealing ring 23 preventing gas from entering the liquid storage chamber 7 can be located at the end of the piston away from the liquid outlet channel 4, ensuring that even when the piston 21 moves to the second position β, it can still prevent gas from entering the liquid storage chamber 7.

[0134] In some implementations, refer to Figure 8 and Figure 9 This application further provides a beauty device 300, which includes the quantitative liquid dispensing device 200 described above. The specific structure of the quantitative liquid dispensing device 200 will not be described in detail here. The beauty device 300 also includes a beauty device body 9 and a treatment head 10.

[0135] In this embodiment, the beauty device body 9 mainly provides assembly positions for various components. The quantitative liquid dispensing device 200 and the treatment head 10 are both located on the beauty device body 9. Specifically, one end of the beauty device body 9 is provided with an installation port 92 for disassembling and assembling the main body 1; at the same time, a first clearance port 91 is also provided on the beauty device body 9, which is used to accommodate the container 72 so that the container 72 can be disassembled and assembled relative to the main body 1.

[0136] In addition, the skin can be further cared for using the treatment head 10 on the beauty device body 9. Specifically, the treatment head 10 is installed on the beauty device body 9 and mainly includes an electrode treatment head 10 and / or an ultrasonic transducer treatment head 10. The setting method of the treatment head 10 can be selected according to actual needs. For example, in one embodiment, an electrode treatment head 10 or an ultrasonic transducer treatment head 10 can be set alone. In another embodiment, both the electrode treatment head 10 and the ultrasonic transducer treatment head 10 can be set on the beauty device body 9 at the same time. There is no limitation on the specific type and number of treatment heads 10.

[0137] It needs to be explained that the electrode treatment head 10 refers to a treatment head 10 with electrode elements, which can further promote the penetration of the essence into the deeper layers of the skin, improve the skin's absorption efficiency, or activate the skin and promote collagen regeneration to enhance the cosmetic effect; while the ultrasonic transducer treatment head 10 refers to a treatment head 10 with an ultrasonic transducer. An ultrasonic transducer is a device that converts electromagnetic energy into mechanical energy (vibration), usually made of piezoelectric ceramics or other magnetostrictive materials. By transmitting vibration to the skin, it achieves a tapping absorption effect, which can also play a role in promoting penetration, thereby optimizing the skin care effect.

[0138] Furthermore, when the treatment head 10 is an electrode treatment head 10, the discharge frequency of the electrode treatment head 10 is 2.5kHz-3.5kHz. When the discharge frequency of the electrode treatment head 10 is less than 2.5kHz, it may result in insufficient discharge energy, preventing the current from reaching the dermis and affecting absorption. Conversely, when the discharge frequency of the electrode treatment head 10 is greater than 3.5kHz, it may result in excessively high discharge energy, leading to skin redness, allergies, and other adverse reactions. Therefore, limiting the discharge frequency of the electrode treatment head 10 to between 2.5kHz and 3.5kHz allows for better deep skincare efficacy while further protecting the skin and optimizing the user experience.

[0139] For example, the discharge frequency of the electrode care head 10 can be specifically set to 2.5 kHz, 2.6 kHz, 2.7 kHz, 2.8 kHz, 2.9 kHz, 3.0 kHz, 3.1 kHz, 3.2 kHz, 3.3 kHz, 3.4 kHz, or 3.5 kHz. Alternatively, the range of the discharge frequency can be set between any two of the above parameter values. This embodiment does not limit the specific parameters of the discharge frequency.

[0140] Furthermore, to optimize the penetration-enhancing effect of the beauty head 6, the beauty device 300 provided in this embodiment also includes a vibration motor 11. The vibration motor 11 is connected to the beauty head 6 and is used to drive the beauty head 6 to reciprocate. Under the action of the vibration motor 11, the beauty head 6 can massage the skin on the one hand, and drive the microneedles to vibrate at high frequency on the other hand to achieve a high-speed puncture effect, thereby optimizing and improving the penetration of the essence.

[0141] It is understood that the transmission connection referred to here can be a direct connection or an indirect connection. For example, the output shaft of the vibration motor 11 can be directly connected to the beauty head 6 to achieve a direct connection; or a vibration connector 111 can be added, which is connected to the vibration motor 11, and the main body 1 can be detachably connected to the vibration connector 111, thus achieving an indirect connection of the beauty head 6. In this embodiment, the vibration motor 11 is indirectly connected to the beauty head 6 through the vibration connector 111.

[0142] Furthermore, the vibration connector 111 is provided with a second clearance opening 112, which is used to expose the main body 1 for the container 72 to be disassembled and assembled. The vibration motor 11 is used to drive the vibration connector 111 to reciprocate. By setting the vibration connector 111, not only can the vibration transmission effect be achieved, but also the installation position for disassembly and assembly of the main body 1 can be provided, so that the main body 1 and the beauty head 6 can be replaced regularly to avoid the growth of bacteria, making the beauty device 300 more hygienic and reliable to use.

[0143] In addition, since the vibration connector 111 is located inside the beauty instrument body 9, the beauty instrument body 9 has a first clearance opening 91 corresponding to the second clearance opening 112. The length of the first clearance opening 91 in the vibration direction of the main body 1 is greater than the length of the second clearance opening 112 in the vibration direction of the main body 1.

[0144] At this time, based on the above-mentioned setup, the container 72 can be assembled onto the main body 1 through the first clearance port 91 and the second clearance port 112, resulting in a compact structure. In addition, since the length of the first clearance port 91 is greater than the length of the second clearance port 112, the container 72 located on the main body 1 is less likely to collide and interfere with the beauty device body 9 when the beauty head 6 and the main body 1 vibrate, making the design more reasonable.

[0145] In some embodiments, this application further provides a control method based on the aforementioned quantitative dispensing device 200, involving features of the quantitative dispensing device 200 such as the quantitative pushing component 2, the quantitative chamber 5, the positive pressure valve 84, the external power source 8, and the positive pressure pipeline 82, and includes the following steps:

[0146] The positive pressure valve 84 is opened and the quantitative push component 2 is reset to control the essence to be drawn into the quantitative chamber 5;

[0147] Immediately after the incident, the positive pressure valve 84 is closed to isolate the positive pressure pipeline 82 from the outside environment;

[0148] The external power source 8 is turned on to send gas into the positive pressure pipeline 82, so that the gas pushes the metering push component 2 to compress the metering chamber 5.

[0149] After the second time, the positive pressure valve 84 is opened to connect the positive pressure pipeline 82 with the outside world, release the gas in the positive pressure pipeline 82, control the quantitative push component 2 to reset, and at the same time re-inhale the essence into the quantitative chamber 5.

[0150] Specifically, the positive pressure valve 84 is opened to release the air in the positive pressure pipe 82. Since the air in the positive pressure pipe 82 is released, the elastic element 22 pushes the piston 21 to the first position. At this time, the metering push component 2 is reset, thereby controlling the essence to be drawn into the metering chamber 5. Since the volume of the metering chamber 5 is fixed, the essence entering the metering chamber 5 is rated.

[0151] After the first time, the positive pressure valve 84 is closed, and the positive pressure pipeline 82 is isolated from the outside. At this time, most of the gas in the positive pressure pipeline 82 can flow along the length of the positive pressure pipeline 82.

[0152] When the positive pressure valve 84 is closed, the external power source 8 is started. Specifically, the air pump module 81 is started. Gas flows out from the positive pressure interface 83 and then forms an external force in the positive pressure pipeline 82. The positive pressure gas pushes the piston 21 to the second position. At this time, the positive pressure gas controls the quantitative push component 2 to compress the quantitative chamber 5. From the start of the external power source 8 to the piston 21 moving to the second position, a second time is required, and the liquid pushing action is completed within the second time.

[0153] After the liquid is dispensed, the positive pressure valve 84 is opened, and the positive pressure pipeline 82 is connected to the outside. The gas in the positive pressure pipeline 82 is released to control the quantitative push component 2 to reset. During the reset process, the quantitative push component 2 re-draws the essence into the quantitative chamber 5.

[0154] Optionally, while opening the positive pressure valve 84, the air pump module 81 can be stopped to stop the gas input, which helps the control metering push component 2 to reset quickly.

[0155] It is understandable that when the quantitative dispensing device 200 is started for the first time (including the first start after a long period of inactivity, as well as the first start after replacing the essence), there may be a situation where the essence was not emptied in time after the last use. Therefore, a period of time can be reserved for repeatedly opening and closing the positive pressure valve 84 and the air pump module 81 to adjust the dispensing volume of the quantitative dispensing device 200 until the essence can be dispensed in a normal quantitative manner.

[0156] Furthermore, the quantitative liquid dispensing device 200 involved in this control method also includes a negative pressure valve 86, a negative pressure pipeline 85, and a negative pressure chamber 400, and the control method further includes the following steps:

[0157] The negative pressure valve 86 is closed to isolate the negative pressure pipeline 85 from the outside world;

[0158] Turn on the external power source 8 to draw air from the negative pressure pipe 85, so that the negative pressure chamber 400 forms an adsorption force.

[0159] After the third time, control the negative pressure valve 86 to open, so that the negative pressure pipeline 85 is connected to the outside, and the adsorption force in the negative pressure cavity 400 is released.

[0160] Specifically, closing the negative pressure valve 86 isolates the negative pressure pipe 85 from the outside world, allowing the air inside the negative pressure chamber 400 to move along the length of the negative pressure pipe 85.

[0161] The external power source 8 is activated to draw air from the negative pressure pipe 85, causing the negative pressure chamber 400 to form an adsorption force. Specifically, the air pump module 81 is activated, and the air pump module 81 draws air from the negative pressure chamber 400 through the negative pressure pipe 85. When the air in the negative pressure chamber 400 is emptied, an adsorption force is formed, thereby performing negative pressure adsorption on the skin.

[0162] It is understandable that in practical applications, because the negative pressure module in this embodiment has both single-pump and dual-pump modes, the sequence of the two actions—negative pressure adsorption of the skin and positive pressure quantitative dispensing of liquid—can be combined in various ways, such as:

[0163] In one embodiment, when the air pump module 81 is a dual-head negative pressure air pump 811, i.e. in the single pump scheme, since the dual-head negative pressure air pump 811 needs to perform air output and air intake actions simultaneously, the two steps of negative pressure adsorption on the skin and positive pressure quantitative liquid delivery can be performed simultaneously, which is equivalent to performing quantitative liquid delivery action by external force while forming negative pressure adsorption force.

[0164] In another embodiment, when the air pump module 81 includes a positive pressure pump 812 and a negative pressure pump 813, the positive pressure pump 812 can be started first to generate external force, and then negative pressure adsorption can be performed through the negative pressure pump 813. In the above process, the quantitative liquid output can be achieved first, and then the negative pressure adsorption can be performed.

[0165] In addition, in the third embodiment, the air pump module 81 also includes a positive pressure pump 812 and a negative pressure pump 813. In this case, the negative pressure pump 813 can be started first to achieve negative pressure adsorption, and then the positive pressure pump 812 can be started to generate external force, which is equivalent to performing negative pressure adsorption first and then performing quantitative liquid dispensing.

[0166] All three combinations mentioned above can achieve good negative pressure adsorption and liquid dispensing effects. Therefore, it can be shown that the control scheme provided in this embodiment can meet the control requirements of two nursing actions, negative pressure adsorption and positive pressure quantitative liquid dispensing, and can be well adapted to single pump and dual pump usage scenarios. The control method provided in this application has the characteristics of high versatility and wide applicability.

[0167] Furthermore, after the dispensing action is completed, after a third period of time, the negative pressure valve 86 is opened to connect the negative pressure pipeline 85 to the outside, releasing the adsorption force in the negative pressure chamber 400. At this time, the user can remove the quantitative dispensing device 200, and the nursing process ends.

[0168] Optionally, the above control method can further enhance the care effect. After adsorbing the skin, the vibration motor 11 is turned on to drive the beauty device 300 to vibrate and perform microneedling on the skin, and / or after adsorbing the skin, the electrodes on the beauty head 6 are activated to perform electrotherapy on the skin. The vibration motor 11 and electrodes are turned off when the care process ends to complete the care process.

[0169] By activating the vibration motor 11 and / or the electrodes on the beauty head 6, the penetration of the serum can be further promoted, optimizing the treatment effect.

[0170] Therefore, the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cosmetic assembly characterized by, include: The main body (1) is provided with a liquid outlet channel (4) and a metering chamber (5) inside the main body (1), and the metering chamber (5) is connected to the liquid outlet channel (4); A quantitative push component (2) is disposed on the main body (1) and is used to draw the essence into the quantitative chamber (5); under the action of external force, the quantitative push component (2) is used to circulate and push the essence in the quantitative chamber (5) to the liquid outlet channel (4). And a one-way valve (3) is provided in the liquid outlet channel (4) to guide the essence to flow outward through the liquid outlet channel (4).

2. The cosmetic assembly of claim 1, wherein, The quantitative delivery component (2) includes a piston (21) which is movably disposed within the quantitative chamber (5); When the piston (21) moves to the first position, it draws the essence into the metering chamber (5); When the piston (21) moves to the second position, it pushes the essence into the outlet channel (4) and prevents the essence from flowing into the metering chamber (5).

3. The cosmetic assembly of claim 2, wherein, The quantitative delivery component (2) further includes an elastic element (22), which is connected to the piston (21) and the inner wall of the quantitative cavity (5) respectively; When liquid is discharged, the piston (21) moves to the second position and puts the elastic element (22) in a compressed state; When liquid is drawn in, the elastic element (22) resets and pushes the piston (21) to the first position.

4. The cosmetic assembly of claim 3, wherein, The piston (21) comprises: The sliding part (211) is slidably connected to the inner wall of the metering cavity (5); And a positioning part (212) is provided at one end of the sliding part (211), the elastic member (22) is located in the metering cavity (5), and one end of the elastic member (22) is connected to the positioning part (212).

5. The cosmetic assembly of claim 2, wherein, The quantitative delivery component (2) also includes a sealing ring (23), which is used to seal the gap between the piston (21) and the cavity wall of the quantitative chamber (5).

6. The beauty component according to claim 1, characterized in that, It also includes a beauty head (6), which includes a core (61) disposed on the main body (1). The core (61) is provided with a liquid outlet (611) and the liquid outlet (611) is connected to the liquid outlet channel (4).

7. The beauty component according to claim 6, characterized in that, The core (61) is provided with microneedles and / or electrodes, and the microneedles and / or electrodes are located on the same surface of the core (61) as the liquid outlet (611).

8. The beauty component according to claim 6, characterized in that, The beauty head (6) also includes: An adsorption sleeve (62) is fitted over the outside of the core (61), and a negative pressure cavity (400) is formed between the core (61) and the adsorption sleeve (62).

9. A quantitative liquid dispensing device, characterized in that, Including a beauty component (100) as described in any one of claims 1-8, further comprising: The liquid storage chamber (7) is connected to the metering chamber (5) and used to store the essence, and the liquid storage chamber (7) is also connected to the outside air; An external power source (8) is connected to the quantitative delivery component (2), and the external power source (8) provides external force to the quantitative delivery component (2) to achieve the delivery of the essence.

10. The quantitative liquid dispensing device according to claim 9, characterized in that, The external power source (8) includes: An air pump module (81) has a positive pressure interface (83); A positive pressure pipe (82) is connected to the positive pressure interface (83) and the metering chamber (5) respectively, and the air pump module (81) delivers positive pressure to the metering push component (2) through the positive pressure pipe (82); And a positive pressure valve (84), which is connected to the positive pressure pipeline (82) for relieving positive pressure.

11. The quantitative liquid dispensing device according to claim 10, characterized in that, When the beauty component (100) includes an adsorption sleeve (62), the external power source (8) also includes a negative pressure pipe (85) and a negative pressure valve (86); The air pump module (81) is a dual-head negative pressure air pump (811). The dual-head negative pressure air pump (811) also has a first negative pressure interface (87). The negative pressure pipe (85) is connected to the first negative pressure interface (87) and the negative pressure cavity (400) respectively. The dual-head negative pressure air pump (811) draws negative pressure from the negative pressure cavity (400) through the negative pressure pipe (85). The negative pressure valve (86) is connected to the negative pressure pipe (85) and is used to release the negative pressure in the negative pressure pipe (85). Alternatively, the air pump module (81) includes a positive pressure pump (812) and a negative pressure pump (813). The positive pressure interface (83) is located on the positive pressure pump (812). The negative pressure pump (813) is provided with a second negative pressure interface (88). The negative pressure pipe (85) is connected to the second negative pressure interface (88) and the negative pressure cavity (400) respectively. The negative pressure pump (813) draws negative pressure from the negative pressure cavity (400) through the negative pressure pipe (85). The negative pressure valve (86) is connected to the negative pressure pipe (85) and is used to release the negative pressure in the negative pressure pipe (85).

12. The quantitative liquid dispensing device according to claim 9, characterized in that, The liquid storage chamber (7) is disposed on the main body (1); Alternatively, it may also include a container (72) detachably connected to the main body (1), wherein the liquid storage chamber (7) is formed in the container (72).

13. The quantitative liquid dispensing device according to claim 10, characterized in that, The main body (1) is provided with a pressure relief hole (103), which is used to connect the positive pressure pipe (82) to the outside air.

14. A beauty device, characterized in that, The device (200) comprising the quantitative liquid dispensing device as described in any one of claims 9-12 further comprises: The beauty instrument body (9) is provided with the quantitative liquid dispensing device (200) disposed on the beauty instrument body (9); and a care head (10), which is disposed on the beauty device body (9); The care head (10) includes an electrode care head and / or an ultrasonic transducer care head for skin care.

15. The beauty device according to claim 14, characterized in that: The discharge frequency of the electrode care head is 2.5KHz-3.5KHz.

16. The beauty device according to claim 14, characterized in that, It also includes a vibration motor (11), which is connected to the beauty head (6) and is used to drive the beauty head (6) to reciprocate.

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