Air pressure massage instrument capable of automatically deflating in power failure

Abstract

The utility model discloses an air pressure massage instrument capable of automatically deflating in power failure, which comprises an air pump and a plurality of air bags communicated with the air pump, and further comprises an air path main channel communicated with the air outlet end of the air pump and an exhaust channel communicated with the air inlet end of the air pump, an air inlet capable of being opened and closed and a second air outlet capable of being opened and closed are formed in the exhaust channel; the air bag is connected in parallel between the air channel main channel and the exhaust channel through the inflation and deflation electromagnetic valve, the inflation and deflation electromagnetic valve is a three-way electromagnetic valve, and three connectors of the inflation and deflation electromagnetic valve are connected with the air bag, the air channel main channel and the exhaust channel respectively; when the inflation and deflation electromagnetic valve is in a power-on state, the air bag is communicated with the air channel main channel, and when the inflation and deflation electromagnetic valve is in a power-off state, the air bag is communicated with the exhaust channel. The air pressure massage instrument can be automatically deflated under the condition of abnormal power failure, so that the air pressure massage instrument can be conveniently folded and stored.

Description

Technical Field

[0001] The utility model relates to the technical field of massage equipment, in particular to an air pressure massager which automatically deflates when power is off. Background Art

[0002] An air pressure massager is a device that massages human limbs and muscle tissues by inflating and deflating air bags. An air pressure massager is usually equipped with multiple air bags, each of which is inflated by an air pump, and the air circuits of each air bag are controlled by solenoid valves to achieve control over the inflation and deflation of each air bag.

[0003] For example, a Chinese patent application with publication number CN115429660A discloses an exhaust control method for an air pressure massage device and an air pressure massage device. In its technical solution, solenoid valves corresponding to the airbags are used to control the inflation and deflation of each airbag. The solenoid valves that control the inflation and deflation of the airbags are normally closed solenoid valves. Therefore, during the process of pumping and deflation, the solenoid valves must be powered on to keep them in an open state throughout the process. The solenoid valves have high power consumption and have a great impact on the battery life of the air pressure massage device. In addition, when the solenoid valves controlling the air paths of the airbags fail or the battery is exhausted, causing the solenoid valves that control the air paths of the airbags to lose power and cannot be opened, the gas in the airbags cannot be discharged normally, causing the airbags to remain inflated, making it inconvenient to fold and store the air pressure massage device. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an air pressure massager which has low power consumption and can automatically deflate when power is cut off.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an air pressure massager with automatic deflation when power is cut off, including an air pump and a plurality of air bags connected to the air pump, and also including a main air channel connected to the air outlet end of the air pump and an exhaust channel connected to the air inlet end of the air pump, the main air channel is provided with a first exhaust port that can be opened and closed, and the exhaust channel is provided with an air inlet that can be opened and closed and a second exhaust port that can be opened and closed; the air bag is connected in parallel between the main air channel and the exhaust channel through an air charging and discharging solenoid valve, the air charging and discharging solenoid valve is a three-way solenoid valve, and the three interfaces of the air charging and discharging solenoid valve are respectively connected to the air bag, the main air channel and the exhaust channel; when the air charging and discharging solenoid valve is in the power-on state, the air bag is connected to the main air channel, and when the air charging and discharging solenoid valve is in the power-off state, the air bag is connected to the exhaust channel.

[0006] The utility model is connected with the airbag by setting the main air path channel and the exhaust channel, and uses the charging and discharging electromagnetic valve to switch the on-off state between the airbag and the main air path channel and between the airbag and the exhaust channel. At the same time, a first exhaust port that can be opened and closed is set on the main air path channel, and a second exhaust port that can be opened and closed is set on the exhaust channel. When the air pressure massager is pumping or automatically deflated, the charging and discharging electromagnetic valve is in a power-off state, and the airbag is connected with the exhaust channel. In the process of pumping or automatically deflated, it is not necessary to energize the charging and discharging electromagnetic valve, thereby reducing the power consumption of the charging and discharging electromagnetic valve, which is conducive to improving the working life of the air pressure massager. At the same time, when the air pressure massager is abnormally powered off, the interface connecting the charging and discharging electromagnetic valve and the exhaust channel is in an open state, and the air path composed of the airbag, the exhaust channel and the second exhaust port is in a connected state. The airbag can automatically exhaust to the external environment through this air path, so that the air pressure massager can automatically deflate in the case of abnormal power failure, thereby facilitating the folding and storage of the air pressure massager.

[0007] As an improvement of the above scheme: it also includes a one-way valve corresponding to the airbags, the one-way valve is set at the connection point between the charging and discharging electromagnetic valve and the exhaust channel, and the one-way valve opens in the direction from the charging and discharging electromagnetic valve to the exhaust channel. The utility model further controls the connection state between each airbag and the exhaust channel by setting a one-way valve and limiting the opening direction of the one-way valve. The one-way valve can be automatically opened during the process of the air pressure massager pumping air or automatically deflation when the power is cut off, so that the gas in the airbag flows into the exhaust channel, and at the same time, it can prevent the gas in the exhaust channel from flowing back into the airbag, which can effectively improve the pressure-maintaining effect of the airbag without affecting the pumping and deflation actions of the air pressure massager.

[0008] As an improvement of the above scheme: the air inlet is provided with an air inlet solenoid valve, which is a three-way solenoid valve; the three interfaces of the air inlet solenoid valve are respectively connected to the exhaust channel, the air inlet and the air inlet end of the air pump. The utility model switches the air circuits corresponding to the air pump air intake and the air bag exhaust by setting the air inlet solenoid valve, effectively reducing the number of solenoid valves used for air circuit switching and reducing the power consumption of the air pressure massager.

[0009] As an improvement of the above scheme: when the air intake solenoid valve is powered on, the exhaust passage is connected to the air intake end of the air pump; when the air intake solenoid valve is powered off, the air inlet is connected to the air intake end of the air pump. The air intake solenoid valve used in the utility model only needs to be powered on to connect the exhaust passage to the air intake end of the air pump when the air pressure massager is pumping air from the air bag. At other times, it is powered off and does not consume electricity, which can further reduce the power consumption of the air pressure massager.

[0010] As an improvement of the above scheme: it also includes a first exhaust solenoid valve arranged on the main air path, and the first exhaust solenoid valve is connected to the first exhaust port. The utility model controls the opening and closing of the first exhaust port by arranging the first exhaust solenoid valve, so as to switch the air path corresponding to the inflation and exhaust of the airbag, effectively reducing the number of solenoid valves used and reducing the power consumption of the air pressure massager.

[0011] As an improvement of the above scheme: the first exhaust solenoid valve is a normally closed solenoid valve; when the first exhaust solenoid valve is powered on, the main air passage is connected to the external environment through the first exhaust port. The utility model limits the type of the first exhaust solenoid valve and adopts a normally closed solenoid valve, which is powered on and opened only when the airbag needs to be deflated separately. At other times, the first exhaust solenoid valve is in a power-off state and does not consume electricity, which can further reduce the power consumption of the air pressure massager.

[0012] As an improvement of the above solution: it also includes a second exhaust solenoid valve arranged on the exhaust passage, and the second exhaust solenoid valve is connected to the second exhaust port. The utility model controls the opening and closing of the second exhaust port by arranging the second exhaust solenoid valve, so as to switch the air path corresponding to the airbag exhaust and the automatic deflation when the power is cut off.

[0013] As an improvement of the above scheme: the second exhaust solenoid valve is a normally open solenoid valve; when the second exhaust solenoid valve is in a power-off state, the exhaust passage is connected to the external environment through the second exhaust port. The utility model limits the type of the second exhaust solenoid valve and adopts a normally open solenoid valve. When the air pressure massager is abnormally powered off, the second exhaust solenoid valve can be automatically opened due to the power off, and the exhaust passage can be automatically exhausted to the external environment through the second exhaust port, so that the air pressure massager can automatically deflate in the event of an abnormal power off, thereby facilitating the folding and storage of the air pressure massager.

[0014] As an improvement of the above solution, a pressure sensor is also provided on the main air passage. The utility model monitors the inflation pressure by providing a pressure sensor to judge whether the inflation pressure of the airbag reaches a set value, so as to stop the inflation action in time and control the airbag to maintain pressure.

[0015] As an improvement of the above solution: the pressure sensor is arranged on the main air passage between the air pump and the first exhaust port. The utility model limits the arrangement position of the pressure sensor so that the pressure sensor can accurately sense the air pressure of the airbag when it is inflated.

[0016] The beneficial effects of the utility model are as follows: the utility model connects the air bag with the main air path and the exhaust path, uses the charging and discharging solenoid valve to switch the on and off state of the air bag, the main air path and the exhaust path, and a second exhaust port with a second exhaust solenoid valve is arranged on the exhaust path; when the air pressure massager is pumping air or automatically deflated by power failure, the charging and discharging solenoid valve is in the power-off state, and the air bag is connected with the exhaust path, and it is not necessary to energize the charging and discharging solenoid valve during the process of pumping air or automatically deflated by power failure, thereby reducing the power consumption of the charging and discharging solenoid valve, which is beneficial to improving the working endurance time of the air pressure massager. The utility model controls the opening and closing of the second exhaust port by adopting a second exhaust solenoid valve of a normally open solenoid valve. When the air pressure massager has an abnormal power failure, the interface connecting the charging and discharging solenoid valve and the exhaust channel is in an open state, the second exhaust solenoid valve is also in an open state, and the air circuit composed of the air bag, the exhaust channel and the second exhaust port is in a connected state. The air bag can automatically exhaust air to the external environment through this air circuit, so that the air pressure massager can automatically deflate in the event of an abnormal power failure, thereby facilitating the folding and storage of the air pressure massager. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the gas circuit structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the gas circuit structure of the utility model when it is in an inflated state;

[0019] Figure 3 It is a schematic diagram of the gas path structure of the utility model when it is in a deflated state;

[0020] Figure 4 It is a schematic diagram of the gas circuit structure of the utility model when it is in the state of pumping gas;

[0021] Figure 5 It is a schematic diagram of the gas circuit structure of the utility model when it is in the automatic deflation state when power is cut off.

[0022] Marked in the figure: 100-air pump, 200-air bag, 300-main air channel, 310-pressure sensor, 400-first exhaust port, 500-exhaust channel, 600-intake port, 700-second exhaust port, 810-charging and discharging solenoid valve, 820-second exhaust solenoid valve, 830-intake solenoid valve, 840-first exhaust solenoid valve, 900-check valve. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0024] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", and "inside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] like Figure 1 As shown, the air pressure massager with automatic deflation when power is cut off disclosed by the utility model comprises an air pump 100 and a plurality of air bags 200. The air pump 100 has an air inlet end and an air outlet end. The air outlet end of the air pump 100 is connected with the air bags 200 through the main air channel 300. The working air of the air pump 100 is transmitted to each air bag 200 through the main air channel 300 to inflate the air bags 200. The main air channel 300 is connected with a first exhaust port 400 that can be opened and closed. The first exhaust port 400 is connected to the external environment. The first exhaust port 400 is used to deflate a single air bag 200 when the air pressure massager is in the working state. Opening the first exhaust port 400 can make the main air channel 300 connected with the external environment to deflate the air bag 200. The air inlet end of the air pump 100 is connected to the airbag 200 through the exhaust channel 500, and the exhaust channel 500 is connected to a second exhaust port 700 that can be opened and closed. The second exhaust port 700 is also connected to the external environment. The second exhaust port 700 is used to deflate all the airbags 200 as a whole when the air pressure massager is in a non-working state. In the utility model, the air charging and discharging air path of the airbag 200 is set separately from the air extraction air path. The airbag 200 is connected in series between the main air path channel 300 and the exhaust channel 500 through the air charging and discharging electromagnetic valve 810. The main air path channel 300 is used as the air charging and discharging air path of the airbag 200, and the exhaust channel 500 is used as the air extraction air path of the airbag 200. The air charging and discharging electromagnetic valve 810 is used to control the switching of the air charging and discharging air path and the air extraction air path.

[0026] Specifically, the gas filling and deflation solenoid valve 810 of the present invention adopts a three-way solenoid valve, such as Figure 1As shown, the three interfaces of the charging and discharging solenoid valve 810 are connected to the airbag 200, the main air path 300 and the exhaust path 500 respectively; and, when the charging and discharging solenoid valve 810 is in the energized state, the airbag 200 is connected to the main air path 300, that is, when the charging and discharging solenoid valve 810 is energized, the air path connected to the airbag 200 is switched to the charging and discharging air path, and the airbag 200 can be selectively inflated or selectively deflated; when the charging and discharging solenoid valve 810 is in the de-energized state, the airbag 200 is connected to the exhaust path 500, that is, when the charging and discharging solenoid valve 810 is de-energized, the air path connected to the airbag 200 is switched to the exhaust path, and the airbag 200 can be overall exhausted and overall deflated. At the same time, a second exhaust solenoid valve 820 is provided on the second exhaust port 700 to control the on / off state of the second exhaust port 700. The second exhaust solenoid valve 820 is a normally open solenoid valve, that is, the second exhaust solenoid valve 820 will be closed only when powered on, and the second exhaust solenoid valve 820 is usually in a power-off open state. Through the cooperation of the above-mentioned charging and discharging solenoid valve 810 and the second exhaust solenoid valve 820, when the air pressure massager is in a power-off automatic deflation state, when the charging and discharging solenoid valve 810 is in a power-off state, the airbag 200 is connected with the exhaust channel 500, and when the second exhaust solenoid valve 820 is powered off, the exhaust channel 500 is connected with the external environment through the second exhaust port 700, so that all the airbags 200 can be automatically deflated, effectively solving the problem that the airbags 200 cannot be deflated when the air pressure massager is abnormally powered off.

[0027] Furthermore, in order to prevent the gas in the exhaust channel 500 from flowing back into the airbag 200 and provide a good pressure-maintaining effect for the airbag 200, the utility model configures a one-way valve 900 for each airbag 200. Figure 1 As shown, the one-way valve 900 is arranged at the connection between the gas charging and discharging electromagnetic valve 810 and the exhaust channel 500, and the opening direction of the one-way valve 900 is limited. The one-way valve 900 opens in the direction from the gas charging and discharging electromagnetic valve 810 to the exhaust channel 500. Due to the one-way opening characteristic of the one-way valve 900, the gas in the exhaust channel 500 cannot flow back into the airbag through the one-way valve 900, so that the air pressure in the airbag 200 can be maintained at a preset air pressure value, and the pressure of the airbag 200 can be maintained. Only when the air pressure in the airbag 200 is greater than the air pressure in the exhaust channel 500, the one-way valve 900 will open to release the pressure of the airbag 200. In addition, during the process of air pumping and deflation of the air pressure massager and in the case of abnormal power failure of the air pressure massager, due to the reduction of the air pressure in the exhaust channel 500, the gas in the airbag 200 can push the one-way valve 900 and automatically enter the exhaust channel 500, and continue to pump or deflate.

[0028] Specifically, Figure 1As shown, in the present invention, an air intake solenoid valve 830 is provided on the air intake port 600 to control the opening and closing of the exhaust passage 500 and the air intake port 600, so as to control the switching of the exhaust air path and the air intake air path. The air intake solenoid valve 830 adopts a three-way solenoid valve, and the three interfaces of the air intake solenoid valve 830 are respectively connected to the exhaust passage 500, the air intake port 600 and the air intake end of the air pump 100; when the air intake solenoid valve 830 is in the power-on state, the exhaust passage 500 is connected to the air intake end of the air pump 100; when the air intake solenoid valve 830 is in the power-off state, the air intake port 600 is connected to the air intake end of the air pump 100. The utility model controls the opening and closing of the first exhaust port 400 by arranging a first exhaust solenoid valve 840 on the first exhaust port 400. The first exhaust solenoid valve 840 is a normally closed solenoid valve. When the first exhaust solenoid valve 840 is in a power-off state, the main gas path 300 is isolated from the external environment. When the first exhaust solenoid valve 840 is in a power-on state, the main gas path 300 is connected to the external environment through the first exhaust port 400. The first exhaust solenoid valve 840 cooperates with the charging and discharging solenoid valve 810 to achieve normal inflation and deflation of the airbag 200.

[0029] Further, such as Figure 1 As shown, the utility model is also provided with a pressure sensor 310 to monitor the inflation pressure, and the pressure sensor 310 is arranged on the main gas path 300 between the air pump 100 and the first exhaust port 400. When the pressure sensor 310 monitors that the inflation pressure in the airbag 200 reaches a preset pressure value, the inflation action of the airbag 200 can be stopped.

[0030] like Figure 2 As shown, the air pressure massager with automatic deflation when power off disclosed in the utility model performs the inflating work. The air inlet solenoid valve 830 is powered off and closed, the air inlet 600 is connected to the air inlet end of the air pump 100, the second exhaust solenoid valve 820 is powered on and closed, and the air pump 100 works to draw air from the external environment into the air inlet 600, and then pumps it into the main air path 300 through the air pump 100. The first exhaust solenoid valve 840 is powered off to isolate the main air path 300 and the first exhaust port 400 from the external environment, and the charging and discharging solenoid valve 810 corresponding to the airbag 200 that needs to be inflated is powered on and opened, and the corresponding charging and discharging air path of the airbag 200 is connected, and the gas enters the corresponding airbag 200 for inflating until the pressure sensor 310 detects that the air pressure value reaches the preset vertical value, and then the air pump 100 stops inflating, and the corresponding charging and discharging solenoid valve 810 is powered off and closed to maintain the pressure in the airbag 200, so that the air pressure massager has the function of inflating and maintaining pressure when working.

[0031] like Figure 3As shown, the air pressure massager with automatic deflation when power is cut off disclosed by the utility model performs deflation work. The first exhaust solenoid valve 840 is energized to make the main air channel 300 communicate with the external environment through the first exhaust port 400, and the charge and discharge solenoid valve 810 corresponding to the airbag 200 that needs to be deflated is energized and opened. Since the main air channel 300 is connected to the external environment through the first exhaust port 400 for deflation, the air pressure in the main air channel 300 is reduced, and the gas in the airbag 200 flows into the main air channel 300 under pressure, and then is discharged to the external environment through the first exhaust port 400. In this process, due to the one-way opening feature of the one-way valve 900, even if the air pressure in the airbag 200 is reduced due to the discharge of gas, the gas cannot enter the airbag 200 from the exhaust channel 500, thereby preventing the gas from flowing back into the airbag 200. In this process, the air pressure massager deflates more thoroughly, and the user can feel a more obvious pressure change.

[0032] like Figure 4 As shown, the air pressure massager with automatic deflation when power is cut off disclosed by the utility model performs the air extraction work. The air inlet solenoid valve 830 is powered on and opened, the exhaust channel 500 is connected to the air inlet end of the air pump 100, the charging and discharging solenoid valve 810 is powered off and remains closed, the second exhaust solenoid valve 820 is powered on and closed, the exhaust channel 500 and the second exhaust port 700 are isolated from the external environment, the air pump 100 extracts the gas in the exhaust channel 500 into the main air channel 300, the gas in the exhaust channel 500 is reduced and the air pressure is reduced, the gas in the airbag 200 pushes the one-way valve 900 and continues to enter the exhaust channel 500; the first exhaust solenoid valve 840 is powered on to connect the main air channel 300 and the first exhaust port 400 to the external environment, and the gas extracted by the air pump 100 enters the main air channel 300 and is then discharged to the external environment through the first exhaust port 400. After using the air pressure massager, the user can force the airbag 200 to quickly release pressure by vacuuming, so that the air pressure massager can quickly return to a foldable state.

[0033] like Figure 5As shown, the air pressure massager with automatic deflation when power is cut off disclosed by the utility model is deflated or an abnormal power cut occurs. At this time, the air pump 100 and all the solenoid valves are in a power-off state, the charging and discharging solenoid valve 810 is powered off and closed to connect the airbag 200 with the exhaust channel 500 and to isolate the airbag 200 from the main air channel 300, and the gas in the airbag 200 cannot enter the main air channel 300, but can only enter the exhaust channel 500; the first exhaust solenoid valve 840 is powered off and closed to isolate the main air channel 300 and the first exhaust port 400 from the external environment, and the intake solenoid valve 830 is powered off and closed to isolate the exhaust channel 500 from the intake end of the air pump 100. When the air pressure massager 500 is powered off, the second exhaust solenoid valve 820 is powered off and opened to connect the exhaust channel 500 with the external environment through the second exhaust port 700. The gas in the exhaust channel 500 is discharged to the external environment through the second exhaust port 700. The air pressure in the exhaust channel 500 continues to decrease. The gas in all the airbags 200 pushes the one-way valve 900 and continues to enter the exhaust channel 500. Finally, it is discharged to the external environment through the second exhaust port 700, thereby achieving the deflation of all the airbags 200 or automatically deflating all the airbags 200 when an abnormal power failure occurs. Therefore, after the use of the air pressure massager is over or after the set working time of the air pressure massager expires, even if the user does not operate it, the air pressure massager will automatically deflate and slowly return to a foldable state. In addition, if the power of the air pressure massager is exhausted and not replenished, or there is an abnormal power failure such as a sudden power failure due to a fault, the air pressure massager can still slowly exhaust the gas to avoid being inflated all the time.

Claims

1. An air pressure massager with automatic deflation when power is off, comprising an air pump (100) and a plurality of air bags (200) connected to the air pump (100), characterized in that: The air bag (200) further comprises a main air channel (300) connected to the air outlet of the air pump (100) and an exhaust channel (500) connected to the air inlet of the air pump (100); the main air channel (300) is provided with a first exhaust port (400) that can be opened and closed, and the exhaust channel (500) is provided with an air inlet (600) that can be opened and closed and a second exhaust port (700) that can be opened and closed; the air bag (200) is connected in parallel to the main air channel (300) via an inflation and deflation electromagnetic valve (810). 0) and the exhaust channel (500), the charging and discharging electromagnetic valve (810) is a three-way electromagnetic valve, and the three interfaces of the charging and discharging electromagnetic valve (810) are respectively connected to the airbag (200), the main air channel (300) and the exhaust channel (500); when the charging and discharging electromagnetic valve (810) is in an energized state, the airbag (200) is connected to the main air channel (300), and when the charging and discharging electromagnetic valve (810) is in an energized state, the airbag (200) is connected to the exhaust channel (500).

2. The air pressure massager with automatic deflation upon power failure as claimed in claim 1, characterized in that: It also includes a one-way valve (900) corresponding to each airbag (200), wherein the one-way valve (900) is arranged at the connection point between the charging and discharging electromagnetic valve (810) and the exhaust channel (500), and the one-way valve (900) opens in the direction from the charging and discharging electromagnetic valve (810) to the exhaust channel (500).

3. The air pressure massager with automatic deflation upon power failure as claimed in claim 1, characterized in that: An air intake solenoid valve (830) is provided at the air intake port (600), and the air intake solenoid valve (830) is a three-way solenoid valve; three interfaces of the air intake solenoid valve (830) are respectively connected to the exhaust channel (500), the air intake port (600) and the air intake end of the air pump (100).

4. The air pressure massager with automatic deflation upon power failure as claimed in claim 3, characterized in that: When the air intake solenoid valve (830) is in an energized state, the exhaust passage (500) is connected to the air intake end of the air pump (100); when the air intake solenoid valve (830) is in an energized state, the air intake port (600) is connected to the air intake end of the air pump (100).

5. The air pressure massager with automatic deflation upon power failure as claimed in claim 1, characterized in that: It also includes a first exhaust solenoid valve (840) disposed on the main gas path (300), and the first exhaust solenoid valve (840) is in communication with the first exhaust port (400).

6. The air pressure massager with automatic deflation upon power failure as claimed in claim 5, characterized in that: The first exhaust solenoid valve (840) is a normally closed solenoid valve; when the first exhaust solenoid valve (840) is in an energized state, the main gas path (300) is connected to the external environment through the first exhaust port (400).

7. The air pressure massager with automatic deflation upon power failure as claimed in claim 1, characterized in that: It also includes a second exhaust solenoid valve (820) disposed on the exhaust passage (500), and the second exhaust solenoid valve (820) is in communication with the second exhaust port (700).

8. The air pressure massager with automatic deflation upon power failure as claimed in claim 7, characterized in that: The second exhaust solenoid valve (820) is a normally open solenoid valve; when the second exhaust solenoid valve (820) is in a power-off state, the exhaust passage (500) is connected to the external environment through the second exhaust port (700).

9. The air pressure massager with automatic deflation upon power failure as claimed in claim 1, characterized in that: It also includes a pressure sensor (310) for monitoring the inflation pressure of the airbag (200) and controlling the inflation and deflation of the airbag (200) according to the monitored inflation pressure. The pressure sensor (310) is arranged on the main air passage (300).

10. The air pressure massager with automatic deflation upon power failure as claimed in claim 9, characterized in that: The pressure sensor (310) is arranged on the main gas path channel (300) at a location between the air pump (100) and the first exhaust port (400).

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