Beauty treatment vacuum degree adjusting device and beauty treatment instrument

Abstract

The utility model relates to a beauty treatment vacuum degree adjusting device and a beauty treatment instrument, the adjusting device comprises a driving motor, a coupler, a manual pressure regulating valve, a pressure sensor and a control module, an air inlet of the manual pressure regulating valve is communicated with an air outlet of an air pump module, and the driving motor is in transmission connection with an adjusting handle of the manual pressure regulating valve through the coupler; the pressure sensor is configured to obtain the pressure in the manual pressure regulating valve, the control module is electrically connected with the pressure sensor and the driving motor, and the pressure sensor transmits the obtained current pressure value to the control module to be compared with a set pressure value set by a user. The control module controls the driving motor to rotate forwards or reversely according to the comparison result so as to adjust the valve opening degree of the manual adjusting valve. Through real-time monitoring of the pressure sensor and intelligent adjustment of the control module, a more efficient and more reliable air pressure control effect is obtained, and compared with a traditional air pressure control system adopting a proportional valve for adjustment, the operation noise of the beauty instrument is reduced, and the product cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of beauty equipment, and in particular to a beauty vacuum adjustment device and a beauty instrument. Background Art

[0002] A skin beauty device is a multifunctional beauty instrument that combines a cleanser, a temperature and cooling device, an oxygen injector, an infusion device, and an eye care device. Through a specific probe, it acts on the facial skin, delivering active ingredients directly into the deep layers of the skin, effectively improving facial concerns. Beauty devices use a negative pressure device to introduce essence into the skin or generate suction to massage or cleanse the skin. However, beauty devices on the market typically use a proportional valve to control the output pressure of the negative pressure device, but this solution is costly and produces loud adjustment noise. Utility Model Content

[0003] Based on this, it is necessary to provide a beauty vacuum adjustment device and a beauty instrument to address the above-mentioned problems of high cost and high adjustment noise in the structure for adjusting the output pressure of the negative pressure device in the beauty instrument.

[0004] The present application provides a beauty vacuum degree regulating device, which is connected to an air pump module and is characterized by comprising a drive motor, a coupling, a manual pressure regulating valve, a pressure sensor, and a control module;

[0005] The air inlet of the manual pressure regulating valve is communicated with the air outlet of the air pump module;

[0006] The pressure sensor is configured to detect the air pressure inside the manual pressure regulating valve;

[0007] The two ends of the coupling are respectively connected to the driving motor and the manual pressure regulating valve, and the driving motor is transmission-connected to the manual pressure regulating valve through the coupling;

[0008] The control module is electrically connected to the drive motor and the pressure sensor respectively. The control module is configured to receive a current pressure value detected by the pressure sensor, compare the current pressure value with a set pressure value, and output a control signal based on the comparison result to drive the drive motor to adjust the valve opening of the manual pressure regulating valve.

[0009] The beauty vacuum adjustment device disclosed in the first aspect of the present application includes a drive motor, a coupling, a manual pressure regulating valve, a pressure sensor, and a control module. The air inlet of the manual pressure regulating valve is connected to the air outlet of the air pump module. The drive motor is connected to the adjustment handle of the manual pressure regulating valve through a coupling. The pressure sensor is configured to obtain the pressure in the manual pressure regulating valve. The control module is electrically connected to the pressure sensor and the drive motor respectively. The pressure sensor transmits the current pressure value obtained to the control module for comparison with the set pressure value set by the user. The control module controls the drive motor to rotate forward or reverse according to the comparison result to adjust the valve opening of the manual regulating valve. The adjustment device of the present application can achieve a more efficient and reliable air pressure control effect through real-time monitoring by the pressure sensor and intelligent adjustment of the control module. Compared with the traditional air pressure control system using proportional valve adjustment, the present application can reduce the operating noise of the beauty instrument and reduce the cost of the product.

[0010] In one embodiment, the control module includes an LPC microcontroller.

[0011] In one embodiment, the control module can set the set pressure value through one or a combination of buttons, voice, and wireless terminals.

[0012] The cosmetic vacuum adjustment device in the above embodiment further provides that the control module can set the set pressure value via keystrokes, voice, or wireless terminal. For example, if the user sets the set pressure value via keystrokes and the adjusted set pressure value deviates from the current pressure value, the control module can quickly respond based on real-time conditions. Once a deviation is detected, the control module automatically outputs a control signal to the drive motor to adjust the valve opening, achieving precise pressure regulation.

[0013] In one embodiment, the drive motor is a closed-loop stepper motor.

[0014] In one embodiment, the beauty vacuum degree adjustment device further includes a fixed bracket, the driving motor and the manual pressure regulating valve are respectively connected to the fixed bracket, and the control module is arranged on the fixed bracket.

[0015] The beauty vacuum degree adjustment device in the above embodiment further defines that the driving motor and the manual pressure regulating valve are both connected to the fixed bracket, and the control module is arranged on the fixed bracket, so that the driving motor, the manual pressure regulating valve and the control module can act as an independent module, so that the adjustment device of the present application can be quickly assembled on the beauty instrument.

[0016] In one embodiment, the fixed bracket includes a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate, the second connecting plate and the third connecting plate are connected in sequence in a ∏ shape, the first connecting plate and the third connecting plate are each provided with a first through hole, the coupling is located between the first connecting plate and the third connecting plate, the adjusting handle of the manual pressure regulating valve and the rotating shaft of the driving motor respectively pass through the first through hole and are connected to the coupling.

[0017] The beauty vacuum degree adjustment device in the above embodiment further defines that the fixed bracket is in the shape of a Chinese character "∏", and the driving motor and the manual pressure-regulating valve are distributed on the first connecting plate and the third connecting plate. A first through hole is provided on both the first connecting plate and the third connecting plate. The rotating shaft of the driving motor and the manual pressure-regulating valve pass through the first through hole respectively and are connected to the coupling. Based on the above design, the driving motor, the coupling and the driving manual pressure-regulating valve are distributed in sequence from top to bottom, so that the overall size of the adjustment device of the present application is small, reducing the space it occupies in the beauty instrument.

[0018] In one embodiment, a limiting portion is provided on the adjusting handle of the manual pressure regulating valve, a first limiting groove and a second limiting groove are provided on the coupling, the rotating shaft of the driving motor is inserted into the first limiting groove and engaged with the first limiting groove, and the limiting portion is inserted into the second limiting groove and engaged with the second limiting groove.

[0019] The beauty vacuum degree adjustment device in the above embodiment further limits the manual pressure regulating valve and the coupling to be clamped together through the cooperation between the limiting portion and the second limiting groove, and the drive motor and the coupling to be clamped together through the cooperation between the rotating shaft and the first limiting groove. Therefore, the drive motor can transmit the adjustment handle of the manual pressure regulating valve through the coupling.

[0020] In one embodiment, the beauty vacuum degree adjustment device also includes an alarm module, which is electrically connected to the control module. The alarm module is configured to issue an alarm signal when the current pressure value is greater than the maximum pressure value or the minimum pressure value within a preset time threshold.

[0021] The beauty vacuum degree adjustment device in the above embodiment is further limited to being provided with an alarm module in the adjustment device. When the device fails to adjust the pressure due to a failure of the drive motor or the manual pressure regulating valve, the control module drives the alarm module to output an alarm signal to remind the user to deal with it in time to avoid causing safety problems.

[0022] A second aspect of the present application provides a beauty instrument, which includes a beauty main unit, an air pump module, a beauty handle, and a beauty vacuum adjustment device as described in any one of the above items, wherein the air pump module and the beauty vacuum adjustment device are both arranged on the beauty main unit, the air inlet of the manual pressure regulating valve is connected to the air outlet of the air pump module, and the air outlet of the manual pressure regulating valve is connected to the beauty handle.

[0023] The beauty instrument provided in the second aspect of the present application, by employing the aforementioned beauty vacuum adjustment device, can detect the pressure output by the air pump module in real time. The pressure sensor rapidly transmits the acquired pressure information to the control module, ensuring the timeliness and accuracy of data transmission. During operation, the user can set the set pressure value based on the desired beauty effect. The control module can promptly output a control signal to control the drive motor to adjust the valve opening of the manual pressure regulating valve, thereby outputting a stable pressure effect, improving the stability of the beauty instrument, reducing the operating noise of the beauty instrument, and enhancing the user experience.

[0024] In one embodiment, there are multiple beauty handles, at least one of which is connected to the air pump module, and the remaining beauty handles are connected to the beauty main unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of a beauty vacuum degree adjustment device in one embodiment;

[0026] Figure 2 An exploded view of a beauty vacuum degree adjustment device in one embodiment

[0027] Figure 3 Schematic diagram of the structure of a beauty instrument in one embodiment.

[0028] Reference numerals:

[0029] 10 beauty main units, 20 air pump modules, 40 beauty vacuum adjustment devices;

[0030] 100 driving motor; 200 coupling; 300 manual pressure regulating valve, 310 limiter; 400 pressure sensor; 500 control module;

[0031] 600 fixing bracket, 610 first connecting plate, 620 second connecting plate, 630 third connecting plate, 601 first through hole. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0033] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, for the purposes of describing the embodiments of the present application herein.

[0034] like Figures 1 to 3 As shown, this embodiment provides a beauty vacuum degree regulating device, the beauty vacuum degree regulating device 40 is connected to the air pump module 20, and the beauty vacuum degree regulating device 40 includes a drive motor 100, a coupling 200, a manual pressure regulating valve 300, a pressure sensor 400 and a control module 500;

[0035] The air inlet of the manual pressure regulating valve 300 is connected to the air outlet of the air pump module 20;

[0036] The pressure sensor 400 is configured to detect the air pressure inside the manual pressure regulating valve 300;

[0037] The two ends of the coupling 200 are connected to the drive motor 100 and the manual pressure regulating valve 300 respectively. The drive motor 100 is connected to the manual pressure regulating valve 300 through the coupling 200.

[0038] The control module 500 is electrically connected to the drive motor 100 and the pressure sensor 400 respectively. The control module 500 is configured to receive the current pressure value detected by the pressure sensor 400, and compare the current pressure value with the set pressure value, and output a control signal based on the comparison result to control the drive motor 100 to adjust the valve opening size of the manual pressure regulating valve 300.

[0039] The air pump module 20 can be connected to various types of beauty handles in the beauty instrument. For example, the air pump module 20 can be connected to a massage handle, an essence introduction handle, a cleaning handle, etc. When the air pump module 20 is connected to the massage handle, the air pump module 20 can suck air to form a negative pressure inside the massage handle. When the massage head of the massage handle is tightly against the skin, the air pump module 20 works to extract the air in the massage handle and discharge it to the outside. The gas in the massage handle becomes less and less, presenting a negative pressure, which in turn has a pulling effect on the blood vessels and nerves in the skin, thereby having the effect of promoting blood circulation or accelerating blood circulation. When the air pump module 20 is connected to the essence introduction handle, the air pump module 20 can provide power to draw the essence in the essence bottle into the essence introduction handle, and then deeply introduce it into the skin through the essence introduction handle. It should be noted that the air pump module 20 can be a negative pressure pump.

[0040] The cosmetic vacuum adjustment device 40 is used to adjust the pressure output by the air pump module 20 and maintain pressure stability. Specifically, the air inlet of the manual pressure regulating valve 300 is connected to the air outlet of the air pump module 20. The manual pressure regulating valve 300 can be adjusted by rotating the adjustment handle to change the valve opening, thereby changing the pressure output by the air pump module 20.

[0041] The pressure sensor 400 can be used to monitor the pressure in the manual pressure regulating valve 300 in real time and transmit the current pressure value to the control module 500;

[0042] The drive motor 100 is connected to the adjustment handle of the manual pressure regulating valve 300 through the coupling 200. When the drive motor 100 rotates, the adjustment handle is driven to rotate through the coupling 200 to adjust the valve opening. It should be noted that the drive motor 100 can rotate forward and reverse. For example, when the drive motor 100 rotates forward, the adjustment handle rotates forward synchronously, the valve opening increases, and the pressure output by the air pump module 20 increases; conversely, when the drive motor 100 rotates reversely, the adjustment handle rotates reversely, the valve opening decreases, and the pressure output by the air pump module 20 decreases.

[0043] The control module 500 may store a set pressure value set by the user. The control module 500 may receive the current pressure value transmitted by the pressure sensor 400, compare the current pressure value with the set pressure value, and output a control signal to the drive motor 100 based on the comparison result. For example, if the current pressure value is greater than the set pressure value, the drive motor 100 rotates in the reverse direction, causing the valve opening to decrease, thereby reducing the pressure output by the air pump module 20; if the current pressure value is less than the set pressure value, the drive motor 100 rotates in the forward direction, causing the valve opening to decrease, thereby increasing the pressure output by the air pump module 20.

[0044] It should be noted that the regulating device of the present application is not only suitable for use in beauty instruments, but can also meet the application needs of various industries that require air pressure control.

[0045] The beauty vacuum degree adjustment device in the above embodiment includes a drive motor 100, a coupling 200, a manual pressure-regulating valve 300, a pressure sensor 400 and a control module 500. The air inlet of the manual pressure-regulating valve 300 is connected to the air outlet of the air pump module 20. The drive motor 100 is transmission-connected to the adjustment handle of the manual pressure-regulating valve 300 through the coupling 200. The pressure sensor 400 is configured to obtain the pressure in the manual pressure-regulating valve 300. The control module 500 is electrically connected to the pressure sensor 400 and the drive motor 100 respectively. The pressure sensor 400 transmits the current pressure value obtained to the control module 500 for comparison with the set pressure value set by the user. The control module 500 controls the drive motor 100 to rotate forward or reverse according to the comparison result to adjust the valve opening of the manual pressure-regulating valve. The regulating device of the present application can obtain a more efficient and reliable air pressure control effect through real-time monitoring of the pressure sensor 400 and intelligent adjustment of the control module 500. Compared with the traditional air pressure control system using proportional valve adjustment, the present application can reduce the operating noise of the beauty instrument and reduce the cost of the product.

[0046] In addition to the features of the above embodiments, this embodiment further defines that: the control module 500 includes an LPC microcontroller.

[0047] In addition to the features of the above embodiments, this embodiment further defines that the control module 500 can set the set pressure value through one or a combination of buttons, voice, and wireless terminals.

[0048] The cosmetic vacuum adjustment device 40 in the above embodiment further provides that the control module 500 can set the set pressure value via keystrokes, voice, or wireless communication. For example, if the user sets the set pressure value via keystrokes and the adjusted set pressure value deviates from the current pressure value, the control module 500 can quickly respond based on the real-time situation. Upon detecting a deviation, the control module 500 automatically outputs a control signal to the drive motor 100 to adjust the valve opening, achieving precise pressure control.

[0049] In addition to the features of the above embodiments, this embodiment further defines that the driving motor 100 is a closed-loop stepping motor.

[0050] Among them, the control principle of the closed-loop stepper motor is to give the motor a target position or movement speed, and feed back the actual position and speed information of the motor through the encoder, so as to adjust the driving pulse signal of the motor through the control module 500, so that the motor can accurately control the position and speed, and then accurately regulate the output pressure of the air pump module 20.

[0051] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further defines: the beauty vacuum degree adjustment device also includes a fixed bracket 600, the driving motor 100 and the manual pressure regulating valve 300 are respectively connected to the fixed bracket 600, and the control module 500 is set on the fixed bracket 600.

[0052] The beauty vacuum degree adjustment device 40 in the above embodiment further defines that the driving motor 100 and the manual pressure regulating valve 300 are both connected to the fixed bracket 600, and the control module 500 is arranged on the fixed bracket 600, so that the driving motor 100, the manual pressure regulating valve 300 and the control module 500 can be used as an independent module, so that the adjustment device of the present application can be quickly assembled on the beauty instrument.

[0053] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the fixed bracket 600 includes a first connecting plate 610, a second connecting plate 620 and a third connecting plate 630, the first connecting plate 610, the second connecting plate 620 and the third connecting plate 630 are connected in sequence in a ∏ shape, the first connecting plate 610 and the third connecting plate 630 are both provided with a first through hole 601, the coupling 200 is located between the first connecting plate 610 and the third connecting plate 630, the adjusting handle of the manual pressure regulating valve 300 and the rotating shaft of the driving motor 100 respectively pass through the first through hole 601 and are connected to the coupling 200.

[0054] The beauty vacuum degree adjustment device 40 in the above embodiment further defines that the fixed bracket 600 is in the shape of a Chinese character "∏", and the drive motor 100 and the manual pressure-regulating valve 300 are distributed on the first connecting plate 610 and the third connecting plate 630. A first through hole 601 is provided on the first connecting plate 610 and the third connecting plate 630. The rotating shaft of the drive motor 100 and the manual pressure-regulating valve respectively pass through the first through hole 601 and are connected to the coupling 200. Based on the above design, the drive motor 100, the coupling 200 and the drive manual pressure-regulating valve 300 are distributed in sequence from top to bottom, so that the overall volume of the adjustment device of the present application is small, reducing the space it occupies in the beauty instrument.

[0055] The fixing bracket 600 can be connected to the driving motor 100 and the manual pressure regulating valve 300 by means of screws.

[0056] like Figure 2As shown, in addition to the features of the above embodiments, this embodiment further defines that: a limiting portion 310 is provided on the adjusting handle of the manual pressure regulating valve 300, a first limiting groove and a second limiting groove are provided on the coupling 200, the rotating shaft of the drive motor 100 is inserted into the first limiting groove and engaged with the first limiting groove, and the limiting portion 310 is inserted into the second limiting groove and engaged with the second limiting groove.

[0057] The beauty vacuum degree adjustment device 40 in the above embodiment further limits the manual pressure regulating valve 300 and the coupling 200 to be clamped together by the cooperation between the limiting portion 310 and the second limiting groove, and the drive motor 100 and the coupling 200 to be clamped together by the cooperation between the rotating shaft and the first limiting groove. Therefore, the drive motor 100 can transmit the adjustment handle of the manual pressure regulating valve 300 through the coupling 200.

[0058] Among them, the coupling 200 can be a columnar structure, and the two ends of the columnar structure are respectively provided with a first limiting groove and a second limiting groove that are adapted to the shape of the limiting part 310 and the rotating shaft of the drive motor 100, so that the two ends of the coupling 200 can be respectively clamped with the limiting part 310 and the rotating shaft of the drive motor 100.

[0059] In addition to the features of the above-mentioned embodiment, this embodiment further defines that: the beauty vacuum degree adjustment device also includes an alarm module, the alarm module is electrically connected to the control module 500, and the alarm module is configured to issue an alarm signal when the current pressure value is greater than the maximum pressure value or the minimum pressure value within a preset time threshold.

[0060] The beauty vacuum degree adjustment device 40 in the above embodiment further defines an alarm module provided in the adjustment device. When the device fails to adjust the pressure due to a failure of the drive motor 100 or the manual pressure regulating valve 300, the control module 500 drives the alarm module to output an alarm signal to remind the user to deal with it in time to avoid causing safety problems.

[0061] The alarm module can be used to output an alarm signal to alert the user. Specifically, when the control module 500 detects a significant deviation between the current pressure value and the set pressure value over a period of time, the control module 500 activates the alarm module to issue an alarm signal to prompt the user to take timely action. It should be noted that the alarm signal can be one or a combination of light, sound, or vibration.

[0062] like Figure 3 As shown, this embodiment provides a beauty instrument, including a beauty main unit 10, an air pump module 20, a beauty handle and a beauty vacuum adjustment device. The air pump module 20 and the beauty vacuum adjustment device 40 are both arranged on the beauty main unit 10, and the air inlet of the manual pressure regulating valve 300 is connected to the air outlet of the air pump module 20, and the air outlet of the manual pressure regulating valve 300 is connected to the beauty handle.

[0063] The beauty device of the second aspect of the present application, by employing the aforementioned beauty vacuum adjustment device 40, can detect the pressure output by the air pump module 20 in real time. The pressure sensor 400 quickly transmits the acquired pressure information to the control module 500, ensuring the timeliness and accuracy of data transmission. During operation, the user can set the set pressure value based on the desired beauty effect. The control module 500 can promptly output a control signal to control the drive motor 100 to adjust the valve opening of the manual pressure regulating valve 300, thereby outputting a stable pressure effect, improving the stability of the beauty device, reducing the operating noise of the beauty device, and enhancing the user experience.

[0064] For detailed descriptions of the beauty vacuum adjustment device 40 , the air pump module 20 , and the beauty handle, please refer to the description of the above embodiment, which will not be repeated here.

[0065] In addition to the features of the above embodiment, this embodiment further defines that: there are multiple beauty handles, at least one beauty handle is connected to the air pump module 20, and the remaining beauty handles are connected to the beauty main unit.

[0066] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of this utility model patent shall be determined by the appended claims.

Claims

1. A beauty vacuum degree regulating device, wherein the beauty vacuum degree regulating device (40) is connected to an air pump module (20), and is characterized in that: It comprises a driving motor (100), a coupling (200), a manual pressure regulating valve (300), a pressure sensor (400) and a control module (500); The air inlet of the manual pressure regulating valve (300) is in communication with the air outlet of the air pump module (20); The pressure sensor (400) is configured to detect the air pressure inside the manual pressure regulating valve (300); The two ends of the coupling (200) are respectively connected to the driving motor (100) and the manual pressure regulating valve (300), and the driving motor (100) is transmission-connected to the manual pressure regulating valve (300) via the coupling (200); The control module (500) is electrically connected to the drive motor (100) and the pressure sensor (400), respectively. The control module (500) is configured to receive a current pressure value detected by the pressure sensor (400), compare the current pressure value with a set pressure value, and output a control signal to drive the drive motor (100) to adjust the valve opening of the manual pressure regulating valve (300) based on the comparison result.

2. The beauty vacuum degree adjustment device according to claim 1, characterized in that: The control module (500) includes an LPC single chip microcomputer.

3. The beauty vacuum degree adjustment device according to claim 1, characterized in that: The control module (500) can set the set pressure value through one or a combination of buttons, voice, and wireless terminal.

4. The beauty vacuum degree adjustment device according to claim 1 or 2, characterized in that: The driving motor (100) is a closed-loop stepping motor.

5. The beauty vacuum degree adjustment device according to claim 1, characterized in that: It also includes a fixed bracket (600), the driving motor (100) and the manual pressure regulating valve (300) are respectively connected to the fixed bracket (600), and the control module (500) is arranged on the fixed bracket (600).

6. The beauty vacuum degree adjustment device according to claim 5, characterized in that: The fixed bracket (600) comprises a first connecting plate (610), a second connecting plate (620) and a third connecting plate (630); the first connecting plate (610), the second connecting plate (620) and the third connecting plate (630) are connected in sequence to form a ∏ shape; the first connecting plate (610) and the third connecting plate (630) are both provided with a first through hole (601); the coupling (200) is located between the first connecting plate (610) and the third connecting plate (630); the adjusting handle of the manual pressure regulating valve (300) and the rotating shaft of the driving motor (100) respectively pass through the first through hole (601) and are connected to the coupling (200).

7. The beauty vacuum degree adjustment device according to claim 6, characterized in that: A limiting portion (310) is provided on the regulating handle of the manual pressure regulating valve (300), a first limiting groove and a second limiting groove are provided on the coupling (200), the rotating shaft of the driving motor (100) is inserted into the first limiting groove and is engaged with the first limiting groove, and the limiting portion (310) is inserted into the second limiting groove and is engaged with the second limiting groove.

8. The beauty vacuum degree regulating device according to claim 1, characterized in that: It also includes an alarm module, which is electrically connected to the control module (500) and is configured to send an alarm signal when the current pressure value is greater than the maximum pressure value or the minimum pressure value within a preset time threshold.

9. A beauty instrument, characterized in that: The present invention comprises a beauty main unit (10), an air pump module (20), a beauty handle, and a beauty vacuum degree regulating device as described in any one of claims 1 to 8 above, wherein the air pump module (20) and the beauty vacuum degree regulating device (40) are both arranged on the beauty main unit (10), the air inlet of the manual pressure regulating valve (300) is connected to the air outlet of the air pump module (20), and the air outlet of the manual pressure regulating valve (300) is connected to the beauty handle.

10. The beauty instrument according to claim 9, characterized in that: There are multiple beauty handles, at least one of which is connected to the air pump module (20), and the remaining beauty handles are connected to the beauty main unit.

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