Flow-adjustable nasal cavity nursing device and flow adjusting method

Abstract

The invention provides a flow-adjustable nasal cavity nursing device and a flow adjusting method. The flow-adjustable nasal cavity nursing device comprises a cleaning mechanism, a suction mechanism, a flow monitoring module and a control module. The cleaning mechanism comprises a cleaning nozzle, a clean water pump and a clean water tank, the clean water tank and the clean water pump are connected with a first clean water pipeline, the clean water pump and the cleaning nozzle are connected with a second clean water pipeline, the suction mechanism comprises a suction head and a suction pump, and the liquid outlet end of the suction pump is connected with a first sewage pipeline; a second sewage pipeline is connected between the liquid inlet end of the suction pump and the suction head; in the flow monitoring module, the flow of the clean water pump is detected through a first flow sensor, the flow of the suction pump is detected through a second flow sensor, and the control module is electrically connected with the clean water pump, the suction pump and the flow sensors and used for adjusting the power of the clean water pump and the suction pump. And the flow difference value of liquid in the second clear water pipeline and the second sewage pipeline is within a target value range, so that the pressure difference balance in the nose is realized, and the use comfort and safety of a user are ensured.

Description

Technical Field

[0001] The present application relates to the field of nasal care equipment, and specifically, to a flow-adjustable nasal care device and a flow regulation method. Background Art

[0002] Nasal irrigators are a commonly used nasal care device. Traditional electric irrigators use a single positive pressure pump to deliver liquid to one nasal cavity, which then flows through the posterior nostril and is discharged from the opposite nasal cavity to achieve the purpose of cleaning the entire nasal cavity.

[0003] However, a single positive pressure mode can easily lead to excessive intranasal pressure during flushing, causing the user to feel severe discomfort, especially when the liquid delivery intensity is high or the nasal cavity is blocked. This discomfort not only affects the user experience, but may also cause damage to the nasal tissue.

[0004] To this end, the nasal irrigators currently on the market have introduced negative pressure assistance in the nasal cavity on the opposite side of the nasal cavity to improve the pressure balance during the irrigating process. For example, the inventor proposed a nasal care device in the Chinese patent application with the publication number: CN215133158U. The device can use the cleaning mechanism to clean the nasal cavity on one side, and at the same time use the suction mechanism to suck the nasal cavity on the other side, and simultaneously discharge the irrigating liquid from the nasal cavity quickly, thereby effectively preventing choking when cleaning the nasal cavity and damage to the nasal cavity caused by water pressure when cleaning the nasal cavity.

[0005] However, in actual application, the applicant found through the use of a large number of users that due to the tolerance of the assembly hardware of the water pump of the cleaning mechanism and the suction pump of the suction mechanism, the power cannot be absolutely matched, and the slight imbalance of the liquid flow rate will cause a large pressure difference in the nose. This pressure difference causes swelling or collapse in the nose, and will also cause damage to the user's nasal tissue, making it impossible to guarantee the user's comfort and safety. Summary of the Invention

[0006] The purpose of this application is to solve the problem in the prior art that the power of the water pump of the cleaning mechanism and the suction pump of the suction mechanism are difficult to match, and the slight imbalance in the liquid flow rate will cause a large pressure difference in the nose, which cannot ensure the comfort and safety of the user.

[0007] To achieve the above-mentioned objectives, in a first aspect, the present application provides a nasal care device with adjustable flow, comprising a cleaning mechanism and a suction mechanism; the cleaning mechanism comprises a cleaning nozzle, a clean water pump, and a clean water tank, a first clean water pipeline is connected between the clean water tank and the clean water pump, a second clean water pipeline is connected between the clean water pump and the cleaning nozzle, and the liquid in the clean water tank is pumped by the clean water pump to the cleaning nozzle for spraying; the suction mechanism comprises a suction head and a suction pump, a liquid outlet end of the suction pump is connected to a first sewage pipeline, a liquid inlet end of the suction pump is connected to the suction head, and a second sewage pipeline is connected between the suction head, and the sewage sucked by the suction head is discharged to the outside through the second sewage pipeline, the suction pump, and the first sewage pipeline in sequence; It also includes a flow monitoring module and a control module; The flow monitoring module includes a first flow sensor and a second flow sensor, wherein the first flow sensor is connected to the first clean water pipeline and / or the second clean water pipeline, and the second flow sensor is connected to the first sewage pipeline and / or the second sewage pipeline; The control module is electrically connected to the clean water pump and the suction pump respectively, and is also electrically connected to the first flow sensor and the second flow sensor. The control module is used to receive flow signals collected by the first flow sensor and the second flow sensor, and adjust the power of the clean water pump and the suction pump so that the flow difference between the liquid in the first clean water pipeline and / or the second clean water pipeline and the first sewage pipeline and / or the second sewage pipeline is within a target value range.

[0008] Furthermore, the control module includes: Data acquisition submodule: used to obtain a first liquid flow value of the first clean water pipeline and / or the second clean water pipeline collected by a first flow sensor; and obtain a second liquid flow value of the first sewage pipeline and / or the second sewage pipeline collected by a second flow sensor; Error calculation submodule: calculates the flow difference between the first liquid flow value corresponding to the clean water pump and the second liquid flow value corresponding to the suction pump; PID control submodule: used to call the flow difference, compare the flow difference with the target value according to the set target value, and output a PID adjustment signal according to the comparison result; Power regulation submodule: adjusts the power of the clean water pump and the suction pump according to the PID regulation signal, thereby ensuring that the flow difference between the first liquid flow value corresponding to the clean water pump and the second liquid flow value corresponding to the suction pump remains within the set target value range.

[0009] Furthermore, the comparison result includes: If the flow difference is greater than the target value, the PID control submodule outputs an adjustment signal to reduce the power of the clean water pump or increase the power of the suction pump so that the flow difference is within the target value range; If the flow difference is less than the target value, the PID control submodule outputs an adjustment signal to increase the power of the clean water pump or reduce the power of the suction pump so that the flow difference is within the target value range.

[0010] Furthermore, the control module further includes: A flow monitoring submodule, configured to collect a first liquid flow value and a second liquid flow value; If any one of the first liquid flow value and the second liquid flow value is greater than a preset threshold, the flow monitoring submodule sends an alarm signal.

[0011] Furthermore, the suction mechanism also includes a sewage tank, the sewage tank is connected to the suction pump via a first sewage pipeline, and the sewage sucked by the suction head is pumped to the sewage tank via the suction pump.

[0012] Furthermore, it also includes an air pressure balance pipe, one end of which extends into the clean water tank, and the other end extends into the sewage tank, so that the air pressure in the clean water tank and the sewage tank approaches a balanced state.

[0013] Furthermore, the flow-adjustable nasal cavity care device further comprises a housing, and the cleaning mechanism and the suction mechanism are mounted on the housing; The cleaning nozzle and the suction head are fixed relative to the housing, and are arranged so that when the cleaning nozzle is inserted into one nostril of a human body, the suction head can be inserted into the other nostril.

[0014] Furthermore, the upper end of the shell is provided with a first interface and a second interface, and the lower end is provided with a first opening and a second opening; The cleaning nozzle is installed on the first interface, the clean water pump is installed in the cavity of the shell, and the clean water tank is detachably installed below the shell, and the top opening of the clean water tank corresponds to the first opening; The suction head is installed on the second interface, the suction pump is installed in the cavity of the shell, the sewage tank is detachably installed below the shell, and the top opening of the sewage tank corresponds to the second opening.

[0015] Furthermore, it also includes a control switch electrically connected to the control module; The control module is configured as follows: When the control switch is activated, the control module starts the suction pump and the clean water pump synchronously; and / or, When the control switch is closed, the control module causes the suction pump to be closed later than the clean water pump.

[0016] In a second aspect, the present application provides a flow regulation method, which is applied to the above-mentioned flow-adjustable nasal cavity care device, and the method comprises: Acquire a first liquid flow rate value of the first clean water pipeline and / or the second clean water pipeline collected by a first flow sensor; and acquire a second liquid flow rate value of the first sewage pipeline and / or the second sewage pipeline collected by a second flow sensor; Calculating a flow rate difference between a first liquid flow rate value corresponding to the clean water pump and a second liquid flow rate value corresponding to the suction pump; Retrieving the flow difference value, comparing the flow difference value with the target value according to the set target value, and outputting a PID adjustment signal according to the comparison result; The power of the clean water pump and the suction pump is adjusted according to the PID adjustment signal, thereby ensuring that the flow difference between the first liquid flow value corresponding to the clean water pump and the second liquid flow value corresponding to the suction pump remains within the set target value range.

[0017] By adopting the above technical solution, the flow-adjustable nasal cavity care device provided by this application has the following beneficial effects: In this solution, a flow monitoring module and a control module are added on the basis of the structure of the existing nasal care device; wherein the control module is electrically connected to the clean water pump, the suction pump, the first flow sensor and the second flow sensor respectively, and the control module is used to receive the flow signals collected from the first flow sensor and the second flow sensor, and adjust the power of the clean water pump and the suction pump, so that the flow difference between the liquid in the first clean water pipeline and / or the second clean water pipeline and the first sewage pipeline and / or the second sewage pipeline is within the target value range, so as to achieve the balance of the intranasal pressure difference and reduce discomfort, thereby ensuring the comfort and safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings that constitute a part of this application are used to provide further understanding of this application. The schematic implementation methods and descriptions of this application are used to explain this application and do not constitute improper limitations on this application.

[0019] In the attached figure: Figure 1 This is a schematic structural diagram of a nasal cavity care device with adjustable flow rate provided according to an embodiment of the present application; Figure 2 A schematic diagram of the structure of the flow-adjustable nasal cavity care device viewed from another angle; Figure 3 A schematic diagram of the internal structure of a nasal cavity care device with adjustable flow rate; Figure 4A schematic diagram of the connection between a power cord and a flow-adjustable nasal care device; Figure 5 A schematic diagram of filling the clean water tank with water after the clean water tank is removed from the housing; Figure 6 A schematic diagram of a fresh water tank mounted on a nasal care device with adjustable flow rate; Figure 7 A schematic diagram of removing the sewage tank from the housing and dumping the sewage; Figure 8 Flow chart of the flow regulation method provided in an embodiment of the present application.

[0020] Description of Reference Numerals 1-cleaning mechanism; 11-cleaning nozzle; 12-clean water pump; 13-clean water tank; 14-first clean water pipeline; 15-second clean water pipeline; 16-first flow sensor; 2-suction mechanism; 21-suction head; 22-suction pump; 23-sewage tank; 24-first sewage pipeline; 25-second sewage pipeline; 26-second flow sensor; 3-housing; 31-first interface; 32-second interface; 33-first opening; 34-second opening; 35-first sealing element; 36-second sealing element; 37-air pressure balance tube; 4-control module; 5-control switch; 51-switch indicator light; 6-battery; 7-first cover; 8-second cover; 9-charging interface; 10-power cord. DETAILED DESCRIPTION

[0021] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0022] However, example embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

[0023] The drawings are merely schematic illustrations of the disclosure and are not necessarily drawn to scale.

[0024] The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted.

[0025] The present application provides a nasal care device with adjustable flow, which is an improvement based on a nasal care device proposed in the Chinese patent application with publication number: CN215133158U. It is intended to solve the problem that in actual use of the device, due to the difficulty in matching the power of the water pump of the cleaning mechanism and the suction pump of the suction mechanism, a slight imbalance in the liquid flow in the pipeline will cause a large pressure difference in the nose. This pressure difference causes swelling or collapse in the nose, and also causes damage to the user's nasal tissue, making it impossible to ensure the user's comfort and safety.

[0026] like Figure 1-Figure 3 As shown, the flow-adjustable nasal cavity care device provided in this application includes a cleaning mechanism 1 and a suction mechanism 2; The cleaning mechanism 1 includes a clean water tank 13, a clean water pump 12, and a cleaning nozzle 11. A first clean water pipeline 14 is connected between the clean water tank 13 and the clean water pump 12, and a second clean water pipeline 15 is connected between the clean water pump 12 and the cleaning nozzle 11. The liquid in the clean water tank 13 is pumped by the clean water pump 12 to the cleaning nozzle 11 for spraying; The suction mechanism 2 includes a sewage tank 23, a suction pump 22, and a suction head 21. A first sewage pipe 24 is connected between the sewage tank 23 and the suction pump 22, and a second sewage pipe 25 is connected between the suction pump 22 and the suction head 21. The sewage sucked by the suction head 21 is pumped to the sewage tank 23 through the suction pump 22. During use, the cleaning nozzle 11 and the suction head 21 can be inserted into one nostril respectively. When the cleaning liquid is sprayed into one nostril through the cleaning nozzle 11, the suction head 21 sucks the dirt in one nostril. The cleaning liquid entering one nostril is sucked out of the other nostril by the suction head 21 under the negative pressure suction generated in the other nostril.

[0027] In addition, the flow-adjustable nasal care device provided in this application also includes a flow monitoring module and a control module; Among them, the flow monitoring module includes a first flow sensor 16 and a second flow sensor 26. The first flow sensor 16 is connected to the first clean water pipeline 14 and / or the second clean water pipeline 15, and is used to collect the real-time flow of the liquid in the first clean water pipeline 14 and / or the second clean water pipeline 15. The second flow sensor 26 is connected to the first sewage pipeline 24 and / or the second sewage pipeline 25, and is used to collect the real-time flow of the liquid in the first sewage pipeline 24 and / or the second sewage pipeline 25; For example, a first flow sensor may be arranged on the first clean water pipeline, and a second flow sensor may be arranged on the first sewage pipeline to collect the flow rates of the liquids in the first clean water pipeline and the first sewage pipeline; Alternatively, a first flow sensor may be arranged on the second clean water pipeline and a second flow sensor may be arranged on the second sewage pipeline to collect the flow of the liquid in the second clean water pipeline and the second sewage pipeline; Alternatively, a first flow sensor may be provided on each of the first clean water pipeline and the second clean water pipeline, and a second flow sensor may be provided on each of the first sewage pipeline and the second sewage pipeline, so as to respectively collect the flow rates of the liquids in the first clean water pipeline, the second clean water pipeline, the first sewage pipeline, and the second sewage pipeline, thereby improving the detection accuracy. Alternatively, a first flow sensor may be arranged on the first clean water pipeline and a second flow sensor may be arranged on the second sewage pipeline to collect the flow rates of the liquids in the first clean water pipeline and the second sewage pipeline; Alternatively, a first flow sensor may be arranged on the second clean water pipeline and a second flow sensor may be arranged on the first sewage pipeline to collect the flow of liquid in the second clean water pipeline and the first sewage pipeline.

[0028] The above different configuration methods can be flexibly selected according to manufacturing and usage requirements.

[0029] The flow-adjustable nasal care device provided in this application can be used in actual applications to effectively monitor the liquid flow provided by the two pump bodies. A high-precision flow sensor suitable for small diameter and micro flow can be selected, such as a miniature thermal mass flow sensor. This sensor is sensitive to low-flow liquids and is suitable for accurately monitoring the flow of flushing liquid. Of course, other flow sensors can also be used as substitutes.

[0030] The control module is electrically connected to the clean water pump 12 and the suction pump 22 respectively, and the control module is also electrically connected to the first flow sensor 16 and the second flow sensor 26; The control module is used to receive the flow signals collected by the first flow sensor 16 and the second flow sensor 26, and adjust the power of the clean water pump 12 and the suction pump 22 so that the flow difference between the liquid in the first clean water pipeline 14 and / or the second clean water pipeline 15 and the first sewage pipeline 24 and / or the second sewage pipeline 25 is within the target value range.

[0031] For example, a first flow sensor 16 is configured on the second clean water pipe 15, and a second flow sensor 26 is configured on the second sewage pipe 25: The control module is used to receive flow signals collected by the first flow sensor 16 and the second flow sensor 26, and adjust the power of the clean water pump 12 and the suction pump 22 so that the pressure difference between the liquid in the second clean water pipeline 15 and the second sewage pipeline 25 is within a preset range.

[0032] The control module of the present application can adopt an existing microcontroller unit MCU (such as STM32, ESP32, etc.), and the control module can be integrated on the circuit board 4.

[0033] Specifically, the control module includes the following submodules: Data acquisition submodule: used to obtain the first liquid flow rate value of the first clean water pipeline 14 and / or the second clean water pipeline 15 collected by the first flow sensor 16, that is, the flow rate data corresponding to the clean water pump 12; and obtain the second liquid flow rate value of the first sewage pipeline 24 and / or the second sewage pipeline 25 collected by the second flow sensor 26, that is, the flow rate data corresponding to the suction pump 22; Error calculation submodule: used to calculate the flow difference between the first liquid flow value corresponding to the clean water pump 12 and the second liquid flow value corresponding to the suction pump 22; The flow difference is calculated as follows: flow difference = first liquid flow value - second liquid flow value; PID control submodule: used to call the above-mentioned flow difference, compare the flow difference with the target value according to the set target value, and output a PID adjustment signal according to the comparison result; Power regulation submodule: adjusts the power of the clean water pump 12 and the suction pump 22 according to the PID regulation signal, thereby ensuring that the flow difference between the first liquid flow value corresponding to the clean water pump 12 and the second liquid flow value corresponding to the suction pump remains within the set target value range.

[0034] In this solution, the flow difference value is compared with the target value, and the processing method of the comparison result includes: If the flow difference is greater than the target value, the PID control submodule outputs an adjustment signal to reduce the power of the clean water pump 12 or increase the power of the suction pump 22 so that the flow difference is within the target value range; If the flow difference is less than the target value, the PID control submodule outputs an adjustment signal to increase the power of the clean water pump 12 or reduce the power of the suction pump 22 so that the flow difference is within the target value range.

[0035] In addition, the control module of this solution also includes: A flow monitoring submodule, configured to collect a first liquid flow value and a second liquid flow value; If any of the first liquid flow value and the second liquid flow value is greater than a preset threshold, the flow monitoring submodule sends an alarm signal; the alarm signal can be output in the form of a buzzer or a corresponding alarm indicator light.

[0036] The flow-adjustable nasal care device provided in the present application also includes an air pressure balance tube 37. One end of the air pressure balance tube 37 extends into the clean water tank 13, and the other end extends into the sewage tank 23. When working, the air pressure in the clean water tank 13 and the sewage tank 23 is close to a balanced state, providing better working conditions for the operation of the two pump bodies.

[0037] The structure of the flow-adjustable nasal care device provided in this embodiment is described in detail below.

[0038] The flow-adjustable nasal cavity care device further comprises a housing 3, on which the cleaning mechanism 1 and the suction mechanism 2 are mounted; The cleaning nozzle 11 and the suction head 21 are fixed relative to the housing 3, and are configured so that when the cleaning nozzle 11 is inserted into one nostril of the human body for cleaning, the suction head 21 can be inserted into the other nostril for suction.

[0039] Specifically, such as Figure 1-Figure 3 As shown, the upper end of the housing 3 is provided with a first interface 31 and a second interface 32, and the lower end is provided with a first opening 33 and a second opening 34; The cleaning nozzle 11 is fixedly installed on the first interface 31, the clean water pump 12 is installed in the cavity of the shell 3, the clean water tank 13 is installed below the shell 3, and the top opening of the clean water tank 13 corresponds to the first opening 33. The first clean water pipeline 14 connected to the water inlet of the clean water pump 12 extends into the clean water tank 13 through the first opening 33.

[0040] The suction head 21 is fixedly mounted on the second interface 32, the suction pump 22 is mounted in the cavity of the shell 3, the sewage tank 23 is mounted below the shell 3, and the top opening of the sewage tank 23 corresponds to the second opening 34. The first sewage pipe 24 connected to the water outlet of the suction pump 22 extends into the sewage tank 23 through the second opening 34.

[0041] In this embodiment, the clean water pump 12 and the suction pump 22 are micro diaphragm pumps. Of course, other types of pumps may be used instead.

[0042] like Figure 3 and Figure 4 As shown, a first sealing member 35 for sealing the connection between the top opening of the clean water tank 13 and the first clean water pipe 14 is provided at the first opening 33; a second sealing member 36 for sealing the connection between the top opening of the sewage tank 23 and the first sewage pipe 24 is provided at the second opening 34.

[0043] Preferably, the clean water tank 13 and the dirty water tank 23 are configured to be detachably mounted on the housing 3. Figure 5 and Figure 6As shown, the clean water tank 13 is removed from the housing 3, and then filled with cleaning liquid and then installed on the housing 3. Figure 7 It is shown that the sewage tank 23 is removed from the housing 3 after use to pour out the sewage.

[0044] The flow-adjustable nasal care device of this embodiment further includes a first cover 7 for covering the cleaning nozzle 11 and a second cover 8 for covering the suction head 21 .

[0045] When in use, the first cover 7 and the second cover 8 are removed. After use, the first cover 7 and the second cover 8 are covered to protect the cleaning nozzle 11 and the suction head 21.

[0046] The housing 3 is provided with a battery 6, such as Figure 3 As shown, the battery 6 can be arranged between the clean water pump 12 and the suction pump 22, and can certainly be arranged at other positions.

[0047] The housing 3 is provided with a charging interface 9 for charging the battery 6 .

[0048] like Figure 4 As shown, the battery 6 can be charged by connecting the power line 10 (a power line of the USB interface in this embodiment) to the charging interface 9.

[0049] In addition, a control switch 5 for controlling the flow-adjustable nasal care device is provided at a position suitable for operation on the housing 3 , and a switch indicator light 51 for indicating the switch status of the control switch 5 is also provided on the housing 3 .

[0050] When the control switch 5 is in the on state, the switch indicator light 51 is on, and when the control switch 5 is in the off state, the switch indicator light 51 is off.

[0051] In this embodiment, the control module is specifically Figure 3 In the circuit board 4 shown in the figure, when the control module is set to start the control switch 5, the control module outputs a control signal to start the suction pump 22 and the clean water pump 12 synchronously. At the same time, the control module obtains the flow signals collected by the first flow sensor 16 and the second flow sensor 26, and adjusts the power of the clean water pump 13 and the suction pump 23 so that the pressure difference between the liquid in the second clean water pipeline 15 and the second sewage pipeline 25 is within the target value range.

[0052] When the control switch is closed, the control module outputs a control signal to make the suction pump 22 shut down later than the clean water pump 12, so as to ensure that the suction pump 22 can fully suck the cleaning liquid remaining in the nasal cavity.

[0053] like Figure 8As shown, a flow regulation method in the technical solution of the present application is applied to the above-mentioned flow-adjustable nasal care device, and the method includes the following steps: S1. Obtain a first liquid flow rate value of a first clean water pipe and / or a second clean water pipe collected by a first flow sensor; and obtain a second liquid flow rate value of a first sewage pipe and / or a second sewage pipe collected by a second flow sensor; S2. Calculate the flow difference between the first liquid flow value corresponding to the clean water pump and the second liquid flow value corresponding to the suction pump; S3. Retrieve the flow difference, according to the set target value, compare the flow difference with the target value, and output a PID adjustment signal based on the comparison result; S4. Regulate the power of the clean water pump and the suction pump according to the PID regulation signal, thereby ensuring that the flow difference between the first liquid flow value corresponding to the clean water pump and the second liquid flow value corresponding to the suction pump remains within the set target value range.

[0054] The preferred embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited thereto. Within the technical concept of the present application, the technical solution of the present application can be modified in a variety of simple ways, including combining various specific technical features in any appropriate manner.

[0055] In order to avoid unnecessary repetition, the present application will not further describe various possible combinations. However, these simple variations and combinations should also be regarded as the contents disclosed in the present application and fall within the scope of protection of the present application.

Claims

1. A nasal care device with adjustable flow, comprising a cleaning mechanism and a suction mechanism; the cleaning mechanism comprises a cleaning nozzle, a clean water pump and a clean water tank, a first clean water pipeline is connected between the clean water tank and the clean water pump, a second clean water pipeline is connected between the clean water pump and the cleaning nozzle, and the liquid in the clean water tank is pumped by the clean water pump to the cleaning nozzle for spraying; the suction mechanism comprises a suction head and a suction pump, a first sewage pipeline is connected to a liquid outlet end of the suction pump, a second sewage pipeline is connected between a liquid inlet end of the suction pump and the suction head, and sewage sucked by the suction head is discharged to the outside through the second sewage pipeline, the suction pump, and the first sewage pipeline in sequence; It is characterized in that It also includes a flow monitoring module and a control module; The flow monitoring module includes a first flow sensor and a second flow sensor, wherein the first flow sensor is connected to the first clean water pipeline and / or the second clean water pipeline, and the second flow sensor is connected to the first sewage pipeline and / or the second sewage pipeline; The control module is electrically connected to the clean water pump and the suction pump respectively, and is also electrically connected to the first flow sensor and the second flow sensor. The control module is used to receive flow signals collected by the first flow sensor and the second flow sensor, and adjust the power of the clean water pump and the suction pump so that the flow difference between the liquid in the first clean water pipeline and / or the second clean water pipeline and the first sewage pipeline and / or the second sewage pipeline is within a target value range.

2. The flow-adjustable nasal care device according to claim 1, characterized in that: The control module comprises: Data acquisition submodule: used to obtain a first liquid flow value of the first clean water pipeline and / or the second clean water pipeline collected by the first flow sensor; and to obtain a second liquid flow value of the first sewage pipeline and / or the second sewage pipeline collected by the second flow sensor; Error calculation submodule: calculates the flow difference between the first liquid flow value corresponding to the clean water pump and the second liquid flow value corresponding to the suction pump; PID control submodule: used to retrieve the flow difference, compare the flow difference with the target value according to the set target value, and output a PID adjustment signal according to the comparison result; Power regulation submodule: adjusts the power of the clean water pump and the suction pump according to the PID regulation signal, thereby ensuring that the flow difference between the first liquid flow value corresponding to the clean water pump and the second liquid flow value corresponding to the suction pump remains within the set target value range.

3. The flow-adjustable nasal care device according to claim 2, characterized in that: The comparison results include: If the flow difference is greater than the target value, the PID control submodule outputs an adjustment signal to reduce the power of the clean water pump or increase the power of the suction pump so that the flow difference is within the target value range; If the flow difference is less than the target value, the PID control submodule outputs an adjustment signal to increase the power of the clean water pump or reduce the power of the suction pump so that the flow difference is within the target value range.

4. The flow-adjustable nasal care device according to claim 2, characterized in that: The control module also includes: A flow monitoring submodule, used for collecting a first liquid flow value and a second liquid flow value; If any one of the first liquid flow value and the second liquid flow value is greater than a preset threshold, the flow monitoring submodule sends an alarm signal.

5. The flow-adjustable nasal care device according to claim 1, characterized in that: The suction mechanism also includes a sewage tank, the sewage tank is connected to the suction pump via a first sewage pipeline, and the sewage sucked by the suction head is pumped to the sewage tank via the suction pump.

6. The flow-adjustable nasal care device according to claim 5, characterized in that: It also includes an air pressure balance pipe, one end of which extends into the clean water tank, and the other end of which extends into the sewage tank, so that the air pressure in the clean water tank and the sewage tank approaches a balanced state.

7. The flow-adjustable nasal care device according to claim 1, characterized in that: The flow-adjustable nasal care device further comprises a housing, and the cleaning mechanism and the suction mechanism are mounted on the housing; The cleaning nozzle and the suction head are fixed relative to the shell, and the cleaning nozzle and the suction head are arranged so that when the cleaning nozzle is inserted into one nostril of a human body, the suction head can be inserted into the other nostril.

8. The flow-adjustable nasal care device according to claim 5, characterized in that: The upper end of the shell is provided with a first interface and a second interface, and the lower end is provided with a first opening and a second opening; The cleaning nozzle is installed on the first interface, the clean water pump is installed in the cavity of the shell, the clean water tank is detachably installed below the shell, and the top opening of the clean water tank corresponds to the first opening; The suction head is installed on the second interface, the suction pump is installed in the cavity of the shell, the sewage tank is detachably installed below the shell, and the top opening of the sewage tank corresponds to the second opening.

9. The flow-adjustable nasal care device according to claim 1, characterized in that: Also included is a control switch electrically connected to the control module; The control module is configured as follows: When the control switch is started, the control module starts the suction pump and the clean water pump synchronously; and / or, When the control switch is closed, the control module causes the suction pump to be closed later than the clean water pump.

10. A flow rate regulating method, applied to the flow rate adjustable nasal care device according to any one of claims 2 to 9, characterized in that: The method comprises: Acquire a first liquid flow value of the first clean water pipeline and / or the second clean water pipeline collected by the first flow sensor; and acquire a second liquid flow value of the first sewage pipeline and / or the second sewage pipeline collected by the second flow sensor; Calculating a flow rate difference between a first liquid flow rate value corresponding to the clean water pump and a second liquid flow rate value corresponding to the suction pump; Retrieving the flow difference value, comparing the flow difference value with the target value according to the set target value, and outputting a PID adjustment signal according to the comparison result; The power of the clean water pump and the suction pump is adjusted according to the PID adjustment signal, thereby ensuring that the flow difference between the first liquid flow value corresponding to the clean water pump and the second liquid flow value corresponding to the suction pump remains within the set target value range.

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