Air pressure massage instrument

Abstract

The utility model discloses an air pressure massage instrument which comprises an air pump and a plurality of air bags communicated with the air pump, the air bags are communicated with the air outlet end of the air pump through an air channel main channel, the air bags are communicated with the air inlet end of the air pump through an exhaust channel, and inflation and deflation electromagnetic valves are arranged at the communicated positions of the air bags and the air channel main channel. A first one-way valve is arranged at the communicating position of the air bag and the exhaust channel and opened in the direction from the air bag to the exhaust channel. An openable and closable exhaust port is formed in the air channel main channel, and an openable and closable air inlet is formed in the exhaust channel. A plurality of electromagnetic valves do not need to be arranged to control switching of different air paths, and automatic opening and closing pressure of the first one-way valve can be achieved between the air bag and the exhaust channel according to the air pressure difference. The use number of the electromagnetic valves and the opening and closing frequency of the electromagnetic valves are reduced, so that the overall power consumption of the air pressure massage instrument can be reduced by reducing the power consumption of the electromagnetic valves, and the working endurance time of the air pressure massage instrument can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of massage devices, in particular to a pneumatic massage instrument. Background Art

[0002] A pneumatic massage instrument is a device that massages human limbs and muscle tissues through the inflation and deflation of airbags. The pneumatic massage instrument usually has multiple airbags, and an air pump is used to inflate each airbag, and a solenoid valve is used to control the on-off of the air path of each airbag to realize the control of the inflation and deflation actions of each airbag.

[0003] For example, the Chinese patent application with publication number CN115429660A discloses an exhaust control method and a pneumatic massage device for a pneumatic massage device. In its technical solution, solenoid valves corresponding to the airbags one by one are used to control the inflation and deflation of each airbag. At the same time, the inflation air path, the deflation air path and the air extraction air path are integrated together, and solenoid valves are also configured on the air pump and the air path channel. Different solenoid valves are required to control the on-off of the air path to realize the switching between the inflation air path, the deflation air path and the air extraction air path. During the inflation, deflation, air extraction, deflation and pressure holding processes of the pneumatic massage device, each solenoid valve needs to be realized through a variety of different opening and closing methods. Therefore, this patent uses a relatively large number of solenoid valves and a variety of solenoid valve control methods, the structure is relatively complex and the working power consumption is relatively high, which has a greater impact on the battery life of the pneumatic massage device. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a pneumatic massage instrument with low power consumption and long battery life.

[0005] The technical solution adopted by the utility model to solve the above technical problem is: a pneumatic massage instrument, including an air pump and a plurality of airbags communicated with the air pump. The airbags are communicated with the air outlet end of the air pump through a main air path channel, and the airbags are communicated with the air inlet end of the air pump through an exhaust channel. A charging and discharging solenoid valve is arranged at the connection between the airbag and the main air path channel, and a first one-way valve is arranged at the connection between the airbag and the exhaust channel. The first one-way valve opens in the direction from the airbag to the exhaust channel; an openable exhaust port is arranged on the main air path channel, and an openable air inlet is arranged on the exhaust channel.

[0006] The utility model reduces the number of solenoid valves used compared with the prior art by setting a main air passage and an exhaust passage, and using a charging and discharging solenoid valve to control the opening and closing of the air passage connecting the airbag and the main air passage, and using a first one-way valve to control the on-off of the air passage connecting the airbag and the exhaust passage. Moreover, the utility model replaces the three-way solenoid valve arranged at the connection between the airbag and the main air passage in the prior art with a two-way charging and discharging solenoid valve, simplifying the overall structure; the first one-way valve can be automatically opened and closed according to the pressure difference between the airbag and the exhaust passage, so as to maintain the pressure of the airbag when the pneumatic massager is working normally; by improving the air passage and the control mode of the air passage, the utility model reduces the number of solenoid valves used and the opening and closing frequency of the solenoid valves, thereby reducing the overall power consumption of the pneumatic massager by reducing the power consumption of the solenoid valves, which is beneficial to improving the working endurance time of the pneumatic massager.

[0007] As an improvement of the above solution: the air inlet end and the air outlet end of the air pump are connected, and a second one-way valve is arranged between the air inlet end and the air outlet end, and the second one-way valve opens in the direction from the air inlet end to the air outlet end. The utility model separately connects the air inlet end and the air outlet end of the air pump, directly connects the exhaust passage and the main air passage, and uses the second one-way valve to control the on-off of the air passage between the air inlet end and the air outlet end, and limits the opening direction of the second one-way valve, so that the second one-way valve can be automatically pushed open by the pressure difference during the air release process of the pneumatic massager or in the case of abnormal power failure, and the air can be released directly without passing through the air pump.

[0008] As an improvement of the above solution: an intake solenoid valve is arranged at the connection between the exhaust passage and the air inlet, the intake solenoid valve is a three-way solenoid valve, and the three interfaces of the intake solenoid valve are respectively connected to the exhaust passage, the air inlet and the air inlet end of the air pump. By setting the intake solenoid valve to switch the air passages corresponding to the air intake of the air pump and the air release of the airbag, the utility model effectively reduces the number of solenoid valves used and reduces the power consumption of the pneumatic massager.

[0009] As an improvement of the above solution: when the intake solenoid valve is in the energized state, the air inlet is connected to the air inlet end of the air pump; when the intake solenoid valve is in the de-energized state, the exhaust passage is connected to the air inlet end of the air pump. By limiting the type of the intake solenoid valve used, the utility model can ensure that the air release air passage connected to the external environment is in the connected state when the pneumatic massager fails or loses power, and can automatically release the air in the airbag, avoiding the problems that the airbag cannot be released after power failure, which affects storage, mailing and after-sales service.

[0010] As an improvement to the above solution: It further includes an exhaust solenoid valve provided on the main air passage, and the exhaust solenoid valve is communicated with the exhaust port. The utility model controls the opening and closing of the exhaust port by providing an exhaust solenoid valve on the main air passage, thereby being able to switch the air passages corresponding to the inflation and exhaust of the airbag, effectively reducing the number of solenoid valves used and lowering the power consumption of the pneumatic massager.

[0011] As an improvement to the above solution: The exhaust solenoid valve is a normally open solenoid valve; when the exhaust solenoid valve is in a power-off state, the main air passage is communicated with the external environment through the exhaust port. By limiting the type of the exhaust solenoid valve adopted in the utility model, it can keep the main air passage in communication with the external environment during the process of deflating the airbag after the pneumatic massager is used, and there is no need to energize the exhaust solenoid valve during the deflation process, reducing the power consumption of the exhaust solenoid valve.

[0012] As an improvement to the above solution: The inflation and deflation solenoid valve is a normally closed solenoid valve; when the inflation and deflation solenoid valve is in a powered-on state, the airbag is communicated with the main air passage. By limiting the type of the inflation and deflation solenoid valve adopted in the utility model, it can maintain the pressure of the airbag after inflation is completed by using the inflation and deflation solenoid valve, and the inflation and deflation solenoid valve remains powered-off and closed during the pressure-holding process of the working state of the airbag massager, so there is no need to continuously energize the inflation and deflation solenoid valve, which can reduce the power consumption of the inflation and deflation solenoid valve.

[0013] As an improvement to the above solution: It further includes a pressure sensor for monitoring the inflation pressure of the airbag and controlling the inflation and deflation of the airbag according to the monitored inflation pressure situation, and the pressure sensor is provided on the main air passage. The utility model monitors the inflation pressure of the airbag by providing a pressure sensor to judge whether the inflation pressure of the airbag reaches the set value, facilitating timely stopping of the inflation action and controlling the pressure-holding of the airbag.

[0014] As an improvement to the above solution: The pressure sensor is provided at a position on the main air passage between the air pump and the exhaust port. By limiting the installation position of the pressure sensor in the utility model, the pressure sensor can accurately sense the air pressure of the airbag in the inflated state.

[0015] The beneficial effects of the present utility model are as follows: By setting up the main air passage and the exhaust passage, and using the inflation and deflation solenoid valve to control the opening and closing of the air passage connecting the airbag and the main air passage, and using the first check valve to control the on-off of the air passage connecting the airbag and the exhaust passage, the present utility model reduces the number of solenoid valves used compared with the prior art. There is no need to set multiple solenoid valves to control the switching of different air passages. The first check valve can be automatically opened and closed according to the pressure difference between the airbag and the exhaust passage, so as to maintain the pressure of the airbag when the pneumatic massager is working normally. By improving the air passage and the control method of the air passage, the present utility model reduces the number of solenoid valves used and the opening and closing frequency of the solenoid valves, thereby reducing the overall power consumption of the pneumatic massager by reducing the power consumption of the solenoid valves, which is beneficial to improving the working endurance time of the pneumatic massager. In addition, since the present utility model reduces the number of solenoid valves used, it can effectively save the occupied space of the solenoid valves in the pneumatic massager, reduce the overall volume of the pneumatic massager, and is beneficial to promoting the miniaturization development of the pneumatic massager. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the air passage structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the air passage structure of the present utility model in the inflated state;

[0018] Figure 3 is a schematic diagram of the air passage structure of the present utility model in the deflated state;

[0019] Figure 4 is a schematic diagram of the air passage structure of the present utility model in the air extraction state;

[0020] Figure 5 is a schematic diagram of the air passage structure of the present utility model in the automatic deflation state.

[0021] The labels in the figure are: 100 - air pump, 200 - airbag, 300 - main air passage, 310 - pressure sensor, 400 - exhaust port, 500 - exhaust passage, 600 - intake port, 710 - first check valve, 720 - second check valve, 810 - inflation and deflation solenoid valve, 820 - intake solenoid valve, 830 - exhaust solenoid valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] For the convenience of understanding the present utility model, the present utility model will be further described below with reference to the accompanying drawings.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "upper", "lower", "inner", etc. is based on the orientation or positional relationship shown in the drawings. It is only for convenience of description and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0024] As Figure 1 shown, the pneumatic massager disclosed by the present utility model includes 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 communicated with each air bag 200 through a main air passage 300, and the air inlet end of the air pump 100 is communicated with each air bag 200 through an exhaust passage 500. When the air pump 100 works and discharges air, the air is transmitted to each air bag 200 through the main air passage 300 to inflate the air bag 200. An openable and closable exhaust port 400 is provided on the main air passage 300, and an air inlet 600 is provided on the exhaust passage 500. Both the exhaust port 400 and the air inlet 600 are communicated with the external environment; during the deflation process of the pneumatic massager, the exhaust port 400 is opened to communicate the main air passage 300 with the external environment, and the air bag 200 deflates and is discharged to the external environment through the exhaust port 400; during the inflation process of the pneumatic massager, the air inlet 600 is opened to communicate the air inlet end of the air pump 100 with the external environment, and the air in the external environment is pumped into the main air passage 300 by the air pump 100 and then transported to the air bag 200 for inflation.

[0025] In the present utility model, the on-off state between each air bag 200 and the main air passage 300 is controlled by an inflation and deflation solenoid valve 810, and the inflation and deflation solenoid valve 810 is provided at the connection between each air bag 200 and the main air passage 300; the inflation and deflation solenoid valve 810 is a normally closed solenoid valve. Only when inflating and deflating the air bag 200, the corresponding inflation and deflation solenoid valve 810 of the air bag 200 will be opened to communicate the air bag 200 with the main air passage 300, and at other times, the inflation and deflation solenoid valve 810 remains closed to maintain the pressure of the air bag 200. At the same time, the present utility model is equipped with a first one-way valve 710 for each air bag 200 to control the on-off state between each air bag 200 and the exhaust passage 500; As Figure 1As shown, the first one-way valve 710 is disposed at the connection between the airbag 200 and the exhaust passage 500, and the opening direction of the first one-way valve 710 is defined. The first one-way valve 710 opens in the direction from the airbag 200 to the exhaust passage 500. The first one-way valve 710 remains closed to prevent gas from flowing back into the airbag, maintaining the air pressure in the airbag 200 at a preset air pressure value to achieve pressure holding of the airbag 200. Only when the air pressure in the airbag 200 is greater than the air pressure in the exhaust passage 500 will the first one-way valve 710 open to relieve the pressure of the airbag 200. Moreover, during the air extraction and air release processes of the pneumatic massage device, due to the decrease in air pressure in the exhaust passage 500, the gas in the airbag 200 can push open the first one-way valve 710 and automatically enter the exhaust passage 500 to continuously perform the air extraction or air release action.

[0026] Furthermore, as Figure 1 shown, in the present utility model, the intake end and the outlet end of the air pump 100 are directly connected, and a second one-way valve 720 is provided between the intake end and the outlet end. The second one-way valve 720 opens in the direction from the intake end to the outlet end. The present utility model separately connects the intake end and the outlet end of the air pump 100, directly connects the exhaust passage 500 and the main air passage 300, and uses the second one-way valve 720 to control the on / off of this connected air passage and define the opening direction of the second one-way valve 720, enabling air release directly without passing through the air pump 100 during the air release process of the pneumatic massage device or in case of abnormal power failure. When the pneumatic massage device performs air release or there is an abnormal power failure, the air pump 100 stops working, the gas in the main air passage 300 is discharged to the external environment through the exhaust port 400, the air pressure in the main air passage 300 decreases, and the air pressure in the exhaust passage 500 is greater than the air pressure in the main air passage 300, then the second one-way valve 720 is pushed open due to the pressure difference, the gas discharged from the airbag 200 to relieve pressure enters the exhaust passage 500 and directly enters the main air passage 300 through the second one-way valve 720, and then is discharged through the exhaust port 400, thus realizing the air release of the pneumatic massage device and automatic air release in case of abnormal power failure.

[0027] Specifically, as Figure 1As shown in the figure, in the present utility model, an intake electromagnetic valve 820 is provided to control the opening and closing of the intake port 600 and the flow direction of the gas. The intake electromagnetic valve 820 adopts a three-way electromagnetic valve, and the three interfaces of the intake electromagnetic valve 820 are respectively connected to the exhaust passage 500, the intake port 600, and the intake end of the air pump 100; when the intake electromagnetic valve 820 is in the energized state, the intake port 600 is connected to the intake end of the air pump 100; when the intake electromagnetic valve 820 is in the de-energized state, the exhaust passage 500 is connected to the intake end of the air pump 100. In the present utility model, an exhaust electromagnetic valve 830 is provided to control the opening and closing of the exhaust port 400, and the two interfaces of the exhaust electromagnetic valve 830 are respectively connected to the main gas passage 300 and the exhaust port 400. The exhaust electromagnetic valve 830 is a normally open electromagnetic valve. When the exhaust electromagnetic valve 830 is in the de-energized state, the main gas passage 300 is connected to the external environment; when the exhaust electromagnetic valve 830 is in the energized state, the main gas passage 300 is cut off from the external environment. Compared with the prior art in which multiple electromagnetic valves are used to control the opening and closing and switching of various gas passages, the present utility model not only reduces the number of electromagnetic valves used, but also effectively reduces the power consumption of the pneumatic massage device during the control process through the selection of the type of electromagnetic valve and the improvement of the control method.

[0028] Furthermore, as Figure 1 shown, the present utility model also provides a pressure sensor 310 to monitor the inflation pressure. The pressure sensor 310 is arranged at a position on the main gas passage 300 between the air pump 100 and the exhaust port 400. When the pressure sensor 310 monitors that the inflation pressure in the airbag 200 reaches the preset pressure value, the inflation operation of the airbag 200 can be stopped.

[0029] As Figure 2 shown, the pneumatic massage device disclosed in the present utility model performs the inflation work. The intake electromagnetic valve 820 is energized, the intake port 600 is connected to the intake end of the air pump 100, and the air pump 100 operates to draw air in the external environment into the intake port 600, and then enters the main gas passage 300 through the air pump 100. The exhaust electromagnetic valve 830 is energized to close the exhaust port 400, and the main gas passage 300 is cut off from the external environment; the inflation and deflation electromagnetic valve 810 is energized to open, and the gas enters the corresponding airbag 200 for inflation until the pressure sensor 310 detects that the pressure value reaches the preset value, and then the air pump 100 stops inflating, and the inflation and deflation electromagnetic valve 810 is de-energized and closed to maintain the pressure in the airbag 200, so that the pneumatic massage device has the inflation and pressure maintaining function during operation.

[0030] As Figure 3As shown in the figure, the pneumatic massage device disclosed by the present utility model performs deflation work. The exhaust solenoid valve 830 is de-energized to open the exhaust port 400, and the main air passage 300 is communicated with the external environment. The inflation and deflation solenoid valve 810 corresponding to the airbag 200 to be deflated is energized to open. Since the main air passage 300 is communicated with the external environment through the exhaust port 400 for deflation, the air pressure in the main air passage 300 decreases. The gas in the airbag 200 flows into the main air passage 300 under the action of pressure, and then is discharged to the external environment through the exhaust port 400. During this process, due to the one-way opening characteristic of the first one-way valve 710, even if the air pressure in the airbag 200 decreases due to gas discharge, the gas cannot enter the airbag 200 from the exhaust passage 500, thereby preventing the gas from flowing back into the airbag 200. During this process, the pneumatic massage device deflates more thoroughly, and the user can feel a more obvious pressure change.

[0031] As Figure 4 shown in the figure, the pneumatic massage device disclosed by the present utility model performs air extraction work. The intake solenoid valve 820 is de-energized, and the exhaust passage 500 is communicated with the intake end of the air pump 100. The air pump 100 extracts the gas in the exhaust passage 500 into the main air passage 300. The gas in the exhaust passage 500 decreases and the air pressure decreases. The gas in the airbag 200 pushes open the first one-way valve 710 and continuously enters the exhaust passage 500; the exhaust solenoid valve 830 is de-energized, the exhaust port 400 is opened, and the main air passage 300 is communicated with the external environment; the gas extracted by the air pump 100 enters the main air passage 300 and then is discharged to the external environment through the exhaust port 400. After the user uses the pneumatic massage device, the user can force the airbag 200 to quickly release pressure through the air extraction operation, so that the pneumatic massage device can quickly return to the foldable state.

[0032] As Figure 5As shown, the pneumatic massage device disclosed by the present utility model deflates or experiences abnormal power-off. At this time, the air pump 100, the air charging and discharging solenoid valve 810, the air intake solenoid valve 820, and the air exhaust solenoid valve 830 are all in a power-off state. The air charging and discharging solenoid valve 810 is powered off and closed; the air exhaust solenoid valve 830 is powered off to open the air exhaust port 400, and the main air passage 300 is connected to the external environment. The gas in the main air passage 300 is discharged to the external environment through the air exhaust port 400; the air pressure in the main air passage 300 decreases, and the gas in the exhaust passage 500 directly enters the pipeline between the air intake end and the air outlet end of the air pump 100 after passing through the powered-off air intake solenoid valve 820, and flows into the main air passage 300 after pushing open the second one-way valve 720; as the air pressure in the exhaust passage 500 continues to decrease, the gas in the airbag 200 pushes open the first one-way valve 710 and continuously enters the exhaust passage 500, and then flows through the main air passage 300 and the air exhaust port 400 in sequence and is discharged. Therefore, after the use of the pneumatic massage device is completed or when the set working time of the pneumatic massage device expires, even if the user does not operate, the pneumatic massage device will automatically deflate and slowly return to the foldable state. In addition, if the power of the power supply of the pneumatic massage device is exhausted and not replenished, or in the case of abnormal power-off such as sudden power failure due to a fault, the pneumatic massage device can still slowly exhaust the gas and avoid remaining in the inflated state all the time.

Claims

1. An air pressure massager, comprising an air pump (100) and a plurality of air bags (200) connected to the air pump (100), characterized in that: The airbag (200) is connected to the air outlet of the air pump (100) through the main air passage (300), and the airbag (200) is connected to the air inlet of the air pump (100) through the exhaust passage (500). A charging and discharging electromagnetic valve (810) is provided at the connection point between the airbag (200) and the main air passage (300), and a first one-way valve (710) is provided at the connection point between the airbag (200) and the exhaust passage (500). The first one-way valve (710) opens in a direction from the airbag (200) to the exhaust passage (500); an openable and closable exhaust port (400) is provided on the main air passage (300), and an openable and closable air inlet (600) is provided on the exhaust passage (500).

2. The air pressure massager according to claim 1, characterized in that: The air inlet end and the air outlet end of the air pump (100) are in communication, and a second one-way valve (720) is provided between the air inlet end and the air outlet end, and the second one-way valve (720) opens in a direction from the air inlet end to the air outlet end.

3. The air pressure massager according to claim 1, characterized in that: An air intake solenoid valve (820) is provided at the connection point between the exhaust channel (500) and the air intake port (600); the air intake solenoid valve (820) is a three-way solenoid valve; three interfaces of the air intake solenoid valve (820) 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 according to claim 3, characterized in that: When the air intake solenoid valve (820) is in an energized state, the air intake port (600) is connected to the air intake end of the air pump (100); when the air intake solenoid valve (820) is in an energized state, the exhaust passage (500) is connected to the air intake end of the air pump (100).

5. The air pressure massager according to claim 1, characterized in that: It also includes an exhaust solenoid valve (830) arranged on the main gas path channel (300), and the exhaust solenoid valve (830) is in communication with the exhaust port (400).

6. The air pressure massager according to claim 5, characterized in that: The exhaust solenoid valve (830) is a normally open solenoid valve; when the exhaust solenoid valve (830) is in a power-off state, the main gas path (300) is connected to the external environment through the exhaust port (400).

7. The air pressure massager according to claim 1, characterized in that: The gas charging and discharging electromagnetic valve (810) is a normally closed electromagnetic valve; when the gas charging and discharging electromagnetic valve (810) is in an energized state, the airbag (200) is connected to the main gas path (300).

8. The air pressure massager according to 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).

9. The air pressure massager according to claim 8, characterized in that: The pressure sensor (310) is arranged on the main gas path channel (300) at a location between the gas pump (100) and the exhaust port (400).

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