Skin beauty care machine and method for improving working reliability thereof

Abstract

The present invention discloses a skin beauty care machine and a method for improving the working reliability thereof. The skin beauty care machine includes a main machine, a skin care head, a clean water tank, a waste water tank and an overflow tank, wherein an air pump connects the waste water tank with the overflow tank through a third pipeline to form a negative pressure in the waste water tank; a detection device for detecting whether waste liquid in the waste water tank enters the third pipeline; and a control circuit board electrically connected to the detection device, which is used to increase the power of the air pump for a preset working time when detecting that waste liquid in the waste water tank enters the third pipeline to pump the waste liquid entering the third pipeline into the overflow tank so as to maintain a negative pressure state in the waste water tank. The present invention improves the working reliability of the care machine and is conducive to improving the user experience.

Description

Technical Field

[0001] The invention relates to the field of personal beauty care, in particular to a skin beauty care machine and a method for improving working reliability thereof. Background Art

[0002] When the moisture content of the skin is less than 10%, dryness, fine lines, tightness, roughness and desquamation will appear. In real life, people usually use their hands to apply moisturizing water, toner, etc. or other watery liquid cosmetics, which is not only uneven, but also requires applying by hand, which wastes time. Therefore, beauty sprayers have emerged.

[0003] There are many types of beauty sprayers in the prior art, and their working principles vary greatly. In one type of beauty sprayer that uses negative pressure to wash back the waste liquid to prevent the waste liquid from dripping or leaking, a negative pressure water tank is needed to generate negative pressure and use the negative pressure to suck back the waste liquid generated during the beauty process. This negative pressure water tank generally adds an air pump on the basis of a conventional water tank, and uses the air pump to extract the air in the water tank to form a negative pressure. However, the existing negative pressure water tank has the defect of poor reliability, which is mainly manifested in: when the waste liquid collected by the negative pressure water tank accidentally enters the air pump, the air pump cannot continue to extract the air in the water tank, so that the negative pressure is weakened or even disappears, resulting in the inability to continue to use negative pressure to recover the waste liquid, resulting in the waste liquid generated during the beauty process cannot be collected in time and drips, or the waste liquid in the water tank is pumped out by the air pump and leaks out, causing dripping or splashing, resulting in a poor user experience. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a skin beauty care machine with high reliability and good user experience and a method for improving the working reliability thereof.

[0005] The present invention provides a skin beauty care machine, comprising: a main unit 1; a power supply arranged in the main unit 1; a skin care head 2 arranged on the main unit 1, the skin care head 2 at least comprising a skin cleaning channel with a skin cleaning port, a liquid supply channel and a reflux channel respectively connected to the skin cleaning channel; a clean water tank 31 and a waste water tank 32 detachably mounted on the main unit 1, the clean water tank 31 being connected to the liquid supply channel, and the waste water tank 32 being connected to the reflux channel; an overflow tank 4 detachably mounted on the main unit 1, the waste water tank 32 being connected to the overflow tank 4 by an air pump 6 through a third pipeline 73 so that a negative pressure is formed in the waste water tank 32; a detection device for detecting whether waste liquid in the waste water tank 32 enters the third pipeline 73; a control circuit board electrically connected to the detection device, for, when detecting that waste liquid in the waste water tank 32 enters the third pipeline 73, causing the air pump 6 to increase power and work for a preset time to pump the waste liquid entering the third pipeline 73 into the overflow tank 4 so that a negative pressure state is maintained in the waste water tank 32.

[0006] In one embodiment, the control circuit board includes a controller and an air pump driving circuit for driving the air pump 6 to work, and the first control port of the controller is electrically connected to the air pump driving circuit to control the operation of the air pump 6.

[0007] In one embodiment, the power supply is electrically connected to the air pump driving circuit via a state detection switch, and the state detection switch is a balance switch or an angle switch.

[0008] In one embodiment, one end of the state detection switch is electrically connected to the second detection port of the controller through the resistor R2.

[0009] In one embodiment, the detection device includes a first probe J1 and a second probe J2 disposed in the third pipeline 73. The first probe J1 and the second probe J2 are spaced apart so as not to be directly electrically connected. The first probe J1 is connected to a DC power supply VCC via a resistor R1, and the second probe J2 is electrically connected to a first detection port of a controller U1.

[0010] In one embodiment, the clean water tank 31 and the waste water tank 32 are fixed together to form a water tank assembly 3 , and the water tank assembly 3 and the overflow tank 4 can be detachably installed at the lower end of the main unit 1 .

[0011] In one embodiment, a water extraction pipe 313 and an air intake pipe 314 extending to the bottom of the clean water tank 31 are provided in the clean water tank 31 . The air intake pipe 314 is connected to the external atmosphere, and the water extraction pipe 313 is connected to the liquid supply channel through the first pipeline 71 .

[0012] In one embodiment, the overflow tank 4 is provided with an air inlet 41 connected to the third pipeline 73 and an air outlet 42 connected to the external atmosphere.

[0013] The present invention also discloses a method for improving the working reliability of a skin beauty care machine, which comprises the following steps: during the use of the skin beauty care machine, the control circuit board determines whether waste liquid has entered the third pipeline 73 through a detection device; if it is determined that waste liquid has entered the third pipeline 73, the control circuit board causes the air pump 6 to increase the power and work for a preset time to pump the waste liquid entering the third pipeline 73 into the overflow tank 4 so that the waste water tank 32 maintains a negative pressure state;

[0014] The skin beauty care machine includes: a main unit 1; a power supply arranged in the main unit 1; a skin care head 2 arranged on the main unit 1, the skin care head 2 at least including a skin cleaning channel with a skin cleaning port, a liquid supply channel and a reflux channel respectively connected to the skin cleaning channel; a clean water tank 31 and a waste water tank 32 detachably installed on the main unit 1, the clean water tank 31 is connected to the liquid supply channel, and the waste water tank 32 is connected to the reflux channel; an overflow tank 4 detachably installed on the main unit 1, the waste water tank 32 is connected to the overflow tank 4 by the air pump 6 through the third pipeline 73 so that negative pressure is formed in the waste water tank 32.

[0015] In one embodiment, if it is determined that waste liquid has entered the third pipeline 73, it also includes a step of detecting whether the orientation state of the skin beauty care machine is normal. Only when the orientation state of the skin beauty care machine is normal, the control circuit board controls the start of the air pump 6 and increases the power of the air pump 6 to work for a preset time.

[0016] The skin beauty care machine disclosed in the present invention sprays liquid mist through the skin care head 2 to perform skin care operations such as hydrating and cleaning, and the waste liquid generated during use is sucked back into the waste water tank 32 so that dripping or splashing will not occur. Specifically, the present invention uses the air pump 6 to generate negative pressure on the waste water tank 32 to recover the waste liquid generated by the skin care head 2. During use, even if the care machine is tipped over or used improperly, resulting in an abnormal orientation of the care machine so that the waste liquid in the waste water tank 32 accidentally enters the third pipeline 73 and there is a hidden danger that the negative pressure may disappear or weaken, the present invention, when judging that the orientation of the care machine has returned to normal, increases the power of the air pump 6 to pump the waste liquid entering the third pipeline 73 into the overflow tank 4, thereby avoiding leakage of the waste liquid collected in the waste water tank 32 and ensuring that the negative pressure does not disappear or weaken during the operation of the care machine, resulting in the waste liquid generated by the skin care head 2 being unable to flow into the waste water tank 32 in time and causing dripping or splashing, thereby improving the working reliability of the care machine and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a skin beauty care machine.

[0018] Figure 2 It is a schematic diagram of the exploded structure of a skin beauty care machine.

[0019] Figure 3 It is a schematic diagram of the structure of the water tank assembly in a partially cut-away state.

[0020] Figure 4 It is a block diagram of the working principle of a skin beauty care machine. The dotted line with an arrow indicates the flow path of air or water.

[0021] Figure 5 It is a schematic diagram of the circuit principle of the control circuit board and the detection device.

[0022] Figure 6 It is a flowchart of the working method of the skin beauty care machine. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present application to achieve the predetermined purpose, the specific implementation methods, structures, features and effects of the present application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0024] Combination Figures 1 to 5 The present invention discloses a skin beauty care machine (also referred to as "care machine"), comprising: a main unit 1; a power supply (generally a battery) arranged in the main unit 1; a skin care head 2 arranged on the main unit 1, the skin care head 2 at least comprising a skin cleaning channel with a skin cleaning port, a liquid supply channel and a reflux channel respectively connected to the skin cleaning channel; a clean water tank 31, a waste water tank 32 and an overflow tank 4 detachably mounted on the main unit 1, the clean water tank 31 being connected to the liquid supply channel of the skin care head 2 to deliver clean water in the clean water tank 31 to the liquid supply channel of the skin care head 2, and the waste water tank 32 being connected to the reflux channel of the skin care head 2, and being driven by an air pump 6 connects the waste water tank 32 with the overflow tank 4 through the third pipeline 73, and the air pump 6 draws out the air in the waste water tank 32 to form a negative pressure in the waste water tank 32, so as to utilize the negative pressure to allow the waste liquid in the reflux channel of the skin care head 2 to flow into the waste water tank 32; a detection device for detecting whether the waste liquid in the waste water tank 32 enters the third pipeline 73; a control circuit board electrically connected to the detection device, for stopping the air pump 6 when detecting that the waste liquid in the waste water tank 32 enters the third pipeline 73, and then increasing the power of the air pump 6 for a preset working time to pump the waste liquid entering the third pipeline 73 into the overflow tank 4.

[0025] Among them, the clean water tank 31 and the waste water tank 32 are fixed together to form the water tank assembly 3, and the water tank assembly 3 and the overflow tank 4 can be detachably installed on the main unit 1. The skin care head 2 is arranged at the upper end of the main unit 1, and the water tank assembly 3 and the overflow tank 4 are arranged at the lower end of the main unit 1. The advantage of this structure is that the water tank assembly 3 and the overflow tank 4 are heavier, so that the care machine is heavy at the bottom and light at the top, and has good stability, and the skin care head 2 is on the top for easy use.

[0026] The lower end of the host 1 is provided with a water tank tank, the bottom of the water tank tank is provided with a support plate 11, and the water tank assembly 3 is detachably installed in the water tank tank. The tank wall of the water tank tank is provided with an outwardly protruding limiting convex portion 12, and the water tank assembly 3 is correspondingly provided with a limiting groove 30, and the support plate 11 is provided with an elastic buckle 13, and the water tank assembly 3 is correspondingly provided with a buckle hole. When the water tank assembly 3 is installed in the water tank tank, the limiting convex portion 12 is connected with the limiting groove 30 and the elastic buckle 13 is buckled into the buckle hole. The overflow tank 4 is installed under the support plate 11 by any existing detachable connection method such as buckling, clamping, limiting, etc.

[0027] Among them, the top of the clean water tank 31 is provided with a first water tank cover 311 to facilitate the water adding operation; the clean water tank 31 is provided with a water pumping pipe 313 and an air inlet pipe 314 extending to the bottom of the tank, the air inlet pipe 314 is connected to the external atmosphere, and the water pumping pipe 313 is connected to the liquid supply channel through the first pipeline 71. The top of the waste water tank 32 is provided with a second water tank cover 321 to facilitate the waste liquid to be poured out. The waste water tank 32 is connected to the reflux channel of the skin care head 2 through the second pipeline 72. The overflow tank 4 is provided with an air inlet 41 connected to the third pipeline 73 and an exhaust port 42 connected to the external atmosphere. Therefore, when the air pump 6 is working, the air in the waste water tank 32 is pumped into the overflow tank 4 and discharged through the exhaust port 42.

[0028] In one embodiment, the skin care head 2 is shown in the skin cleansing device of CN2019101861212, which will not be repeated here. Of course, the skin care head 2 can also be other structures or functions in the prior art, which will not be described in detail here.

[0029] Recombination Figure 5 As shown. The control circuit board has a controller U1, a state detection switch and an air pump driving circuit for driving the air pump 6 to work. Among them, the controller U1 is generally implemented by a single-chip microcomputer, such as a single-chip microcomputer of model AT89C51, wherein the first control port P2.0 of the controller U1 is electrically connected to the air pump driving circuit to control the working state and even the working power of the air pump 6. Among them, the air pump driving circuit is a prior art. For example, the air pump driving circuit includes a transistor and a relay, and the relay is electrically connected between the air pump 6 and the power supply. The transistor is used as a driving switch of the relay, wherein the base of the transistor is electrically connected to the P2.0 port of the controller U1. In this way, the P2.0 port of the controller U1 outputs a control signal to control the action of the transistor to change the working state of the air pump 6. For example, the control signal is a PWM signal, and different duty cycles can change the power of the air pump 6, which will not be described in detail here.

[0030] The power supply supplies power to the air pump 6 through the state detection switch. The state detection switch is a balance switch or an angle switch. Common balance switches are mercury balance switches or ball balance switches, and common angle switches are mercury angle switches and ball angle switches. Since the state detection switch is arranged on the control circuit board, and the control circuit board can be installed horizontally in the host 1. Therefore, when the user (or user) holds the handheld body 1 and uses the nursing machine, the nursing machine will definitely tilt the water tank assembly 3 due to the need of use. When the tilt angle of the water tank assembly 3 does not exceed the preset angle, the waste water in the waste water tank 32 will not enter the third pipeline 73. At this time, the nursing machine can work normally, so at this time, the balance switch or the angle switch is also in the on state, allowing the air pump 6 to work normally; on the contrary, when the tilt angle of the nursing machine exceeds the preset angle, the balance switch or the angle switch is also in the off state, so that the air pump 6 loses power and the nursing machine stops working.

[0031] In addition, the controller U1 can also detect whether the orientation state of the nursing machine is normal, that is, whether the inclination angle of the nursing machine is within the preset angle, and the implementation method is as follows: a resistor R2 is connected in series at one end of the state detection switch and is electrically connected to the second detection port P1.1 of the controller U1. Therefore, when the orientation state of the nursing machine is normal, corresponding to the inclination angle of the nursing machine being within the preset angle, the state detection switch is turned on, and at this time, the second detection port P1.1 of the controller U1 is a high level; on the contrary, when the orientation state of the nursing machine is abnormal, corresponding to the inclination angle exceeding the preset angle due to reasons such as the nursing machine tipping over or improper use, the state detection switch is disconnected, and at this time, the second detection port P1.1 of the controller U1 is a low level. Therefore, the controller U1 can determine whether the orientation state of the nursing machine is normal based on the level of the second detection port P1.1.

[0032] Furthermore, the detection device includes a first probe J1 and a second probe J2 arranged in a third pipeline 73 connecting the waste water tank 32 and the air pump 6. The first probe J1 and the second probe J2 are arranged at an interval so that the two are not directly electrically connected. The first probe J1 is connected to a DC power supply VCC (generally VCC is 5V) through a resistor R1, and the second probe J2 is electrically connected to a first detection port P1.0 of a controller U1 on a control circuit board. Therefore, when the waste liquid collected from the skin care head 2 in the waste water tank 32 does not enter the third pipeline 73, the first probe J1 and the second probe J2 are not electrically connected and are disconnected, so at this time, the first detection port P1.0 of the controller U1 detects a low level; on the contrary, when the nursing machine is overturned or the user holds the host 1 and tilts the nursing machine at a large angle, causing the waste liquid in the waste water tank 32 to accidentally enter the third pipeline 73, the waste liquid will fill the space between the first probe J1 and the second probe J2, so that the first probe J1 and the second probe J2 are electrically connected, and at this time, the first detection port P1.0 of the controller U1 detects a high level. It can be seen that the controller U1 on the control circuit board can detect and determine whether the waste liquid in the waste water tank 32 enters the third pipeline 73 through the level signal of the first detection port P1.0.

[0033] Further integration Figure 6 As shown, the working process of the skin beauty care machine is as follows:

[0034] Step S1: After the nursing machine is turned on, the air pump 6 starts to work.

[0035] Specifically, a large negative pressure is formed in the waste water tank 32 under the action of the air pump 6, and the large negative pressure in the waste water tank 32 generates negative pressure suction on the reflux channel of the skin care head 2 through the second pipeline 72; at the same time, the skin cleaning port of the skin care head 2 is attached to the skin, and the skin cleaning port is sealed by the skin, so that the negative pressure is transmitted to the liquid supply channel through the skin cleaning port, and the clean water in the clean water tank 31 is delivered to the liquid supply channel of the skin care head 2 through the first pipeline 71 under the action of the negative pressure, and the clean water is sprayed out through the skin care port in the form of ultrasonic water column, water mist, etc. under the action of the skin care head 2; the waste liquid generated during the skin cleansing care process flows back to the reflux channel of the skin care head 2 under the action of negative pressure, and then the waste liquid in the reflux channel flows into the waste water tank 32 under the action of negative pressure, so as to avoid water droplets from dripping after the oxygen-enriched water is used for skin beauty care during use.

[0036] Step S2, determine whether waste liquid enters the third pipeline 73. As described above, the controller U1 on the control circuit board can detect and determine whether the waste liquid in the waste water tank 32 enters the third pipeline 73 through the level signal of the first detection port P1.0. If it is determined that the waste liquid in the waste water tank 32 does not enter the third pipeline 73, return to step S2 to continue detection, otherwise, go to step S3.

[0037] Step S3, stop the air pump 6. As described above, the first control port P2.0 of the controller U1 generates a control signal to the air pump driving circuit to change the working state of the air pump 6, including starting / stopping the air pump 6 or changing the working power of the air pump 6, which will not be described in detail here.

[0038] Step S4, detect whether the position state of the nursing machine is normal. If not, a prompt message is issued to prompt the user to restore the position state of the nursing machine to normal, and then the process returns to step S4 to continue the detection. Otherwise, when the position state of the nursing machine is normal, the process goes to step S5. As described above, the controller U1 can determine whether the position state of the nursing machine is normal according to the level of the second detection port P1.1.

[0039] Step S5, the controller U1 controls to start the air pump 6 and increase the power of the air pump 6 for a preset time to pump the waste liquid entering the third pipeline 73 into the overflow tank 4, and then returns to step S1 to allow the nursing machine to continue to work normally, and the waste water tank 32 maintains a negative pressure state to ensure that the waste liquid generated by the skin care head 2 can be continuously sucked into the waste liquid tank 32 by using the negative pressure to avoid dripping or splashing of the waste liquid generated by the skin care head 2 to affect the user's experience. Among them, the purpose of starting the air pump 6 and increasing the power of the air pump 6 for a preset time can be achieved by the first control port P2.0 of the controller U1 generating a corresponding control signal to the air pump drive circuit, which is common knowledge of those skilled in the art and will not be described in detail.

[0040] In summary, the skin beauty care machine disclosed in the present invention utilizes the air pump 6 to generate negative pressure on the waste water tank 32 to recover the waste liquid generated by the skin care head 2. During use, even if the care machine is tipped over or used improperly, resulting in an abnormal orientation of the care machine so that the waste liquid in the waste water tank 32 accidentally enters the third pipe 73 and there is a hidden danger that the negative pressure may disappear or weaken, the present invention, when judging that the orientation of the care machine has returned to normal, increases the power of the air pump 6 to pump the waste liquid entering the third pipe 73 into the overflow tank 4, thereby avoiding leakage of the waste liquid collected in the waste water tank 32 and ensuring that the negative pressure will not disappear or weaken during the operation of the care machine, resulting in the waste liquid generated by the skin care head 2 being unable to flow into the waste water tank 32 in time and causing dripping or splashing, thereby improving the working reliability of the care machine and improving the user experience.

[0041] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A skin beauty care machine, comprising: Host (1); A power supply provided in the host (1); A skin care head (2) is arranged on a main unit (1), the skin care head (2) comprising at least a skin cleaning channel with a skin cleaning port, a liquid supply channel and a return channel respectively connected to the skin cleaning channel; a clean water tank (31) and a waste water tank (32) are detachably mounted on the main unit (1), the clean water tank (31) is connected to the liquid supply channel, and the waste water tank (32) is connected to the return channel; and the device is characterized in that it further comprises: An overflow tank (4) is detachably mounted on the main unit (1), and an air pump (6) is used to connect the waste water tank (32) and the overflow tank (4) via a third pipeline (73) so as to form a negative pressure in the waste water tank (32); A detection device for detecting whether waste liquid in the waste water tank (32) has entered the third pipeline (73); a control circuit board electrically connected to the detection device, for causing the air pump (6) to increase power and operate for a preset time period to pump the waste liquid entering the third pipeline (73) into the overflow tank (4) when detecting that waste liquid in the waste water tank (32) enters the third pipeline (73) so as to maintain a negative pressure state in the waste water tank (32); The control circuit board comprises a controller and an air pump driving circuit for driving the air pump (6) to work, and a first control port of the controller is electrically connected to the air pump driving circuit to control the operation of the air pump (6); The detection device comprises a first probe J1 and a second probe J2 arranged in a third pipeline (73), the first probe J1 and the second probe J2 being arranged at an interval so as not to be directly electrically connected, the first probe J1 being connected to a DC power supply VCC via a resistor R1, and the second probe J2 being electrically connected to a first detection port of a controller U1; The clean water tank (31) and the waste water tank (32) are fixed together to form a water tank assembly (3). The water tank assembly (3) and the overflow tank (4) are both detachably mounted at the lower end of the main unit (1).

2. The skin beauty care machine according to claim 1, characterized in that: The power supply is electrically connected to the air pump driving circuit through a state detection switch, and the state detection switch is a balance switch or an angle switch.

3. The skin beauty care machine according to claim 2, characterized in that: One end of the state detection switch is electrically connected to the second detection port of the controller through the resistor R2.

4. The skin beauty care machine according to claim 1, characterized in that: A water extraction pipe (313) and an air intake pipe (314) extending to the bottom of the clean water tank (31) are provided in the clean water tank (31); the air intake pipe (314) is connected to the external atmosphere; and the water extraction pipe (313) is connected to the liquid supply channel via a first pipeline (71).

5. The skin beauty care machine according to claim 1, characterized in that: The overflow tank (4) is provided with an air inlet (41) connected to the third pipeline (73) and an air outlet (42) connected to the external atmosphere.

6. The method for improving the working reliability of a skin beauty care machine according to any one of claims 1 to 5, characterized in that: Includes steps: During use of the skin beauty care machine, the control circuit board determines through the detection device whether waste liquid has entered the third pipeline (73); If it is determined that waste liquid has entered the third pipeline (73), the control circuit board causes the air pump (6) to increase its power and operate for a preset time to pump the waste liquid entering the third pipeline (73) into the overflow tank (4) so ​​that a negative pressure state is maintained in the waste water tank (32); The skin beauty care machine comprises: a main unit (1); a power supply arranged in the main unit (1); a skin care head (2) arranged on the main unit (1), the skin care head (2) comprising at least a skin cleaning channel with a skin cleaning port, a liquid supply channel and a return channel respectively connected to the skin cleaning channel; a clean water tank (31) and a waste water tank (32) detachably mounted on the main unit (1), the clean water tank (31) being connected to the liquid supply channel, and the waste water tank (32) being connected to the return channel; and an overflow tank (4) detachably mounted on the main unit (1), the waste water tank (32) being connected to the overflow tank (4) by an air pump (6) through a third pipeline (73) so that negative pressure is formed in the waste water tank (32).

7. The method according to claim 6, characterized in that: If it is determined that waste liquid has entered the third pipeline (73), the following steps are also included: stopping the air pump (6) from working; and detecting whether the orientation state of the skin beauty care machine is normal. Only when the orientation state of the skin beauty care machine is normal, the control circuit board controls the air pump (6) to start and increase the power of the air pump (6) to work for a preset time.

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