Inflation and deflation control device and air cushion control system

Abstract

The utility model discloses an inflation and deflation control device and system, which comprises a controller and an air pump electrically connected with the controller, and further comprises an air inlet electromagnetic valve communicated with an air inlet of the air pump and an air outlet electromagnetic valve communicated with an air outlet of the air pump, the air inlet electromagnetic valve is controlled to be switched between at least one air exhaust channel and at least one air inlet channel, the air outlet electromagnetic valve is controlled to be switched between at least one air exhaust channel and at least one air inflation channel, and when the air cushion is in the air inflation process, the air outlet electromagnetic valve is switched to the air inflation channel, and the air inlet electromagnetic valve is switched to the air inlet channel; an air inlet of the air pump communicates with the outside through an air inlet channel, and an air outlet communicates with the air cushion through an inflation channel. When the air cushion is in a deflation process, the air outlet electromagnetic valve is controlled to be switched to the exhaust channel, the air inlet electromagnetic valve is controlled to be switched to the air extraction channel, an air inlet of the air pump is communicated with the air cushion through the air extraction channel, and an air outlet of the air pump is communicated with the outside through the exhaust channel.

Description

TECHNICAL FIELD

[0001] The utility model relates to air cushion technology field especially, it is a kind of for air cushion's inflation and deflation control device and air cushion control system. BACKGROUND

[0002] Air cushion as a common inflatable equipment, is widely used in various life and industrial scenes, such as air bed, life raft, sports air cushion etc. To ensure that air cushion can be inflated and deflated according to demand, it is usually necessary to be equipped with corresponding inflation and deflation control device. The traditional inflation and deflation control device mostly adopts manual operation mode, controls the in and out of air flow by switch or knob, this mode is not only cumbersome, and difficult to realize accurate control.

[0003] With the development of electronic technology, automatic and intelligent inflation and deflation control device gradually receives the favor of market. This kind of device usually includes a controller and a gas pump electrically connected with the controller, the working state of gas pump is accurately regulated by controller, to realize the inflation function of air cushion. However, this kind of device can only realize single inflation or deflation function, and cannot simultaneously consider both; although some devices can simultaneously realize inflation and deflation, but often need manual intervention in switching process, lack of flexibility and automation degree.

[0004] In the field of air cushion inflation and deflation control, the traditional inflation and deflation control device mostly adopts different gas pumps to realize the inflation and deflation function of air cushion. However, this design has a significant technical problem, that is, one gas pump cannot control both inflation and deflation of an air cushion. That is, when air cushion needs to be inflated, the traditional device completes the inflation process by starting the gas pump and guiding the air flow to the air cushion. However, when air cushion needs to be deflated, these devices usually can only rely on the elastic retraction of air cushion itself or external negative pressure equipment to extract the gas in air cushion, and cannot directly realize the deflation function through the same gas pump. This is because, in physical structure, the gas inlet and gas outlet of gas pump are fixed, and cannot meet the air flow direction requirements of inflation and deflation at the same time. SUMMARY

[0005] The utility model wants to overcome the prior art's insufficient, and provide a earphone shell protective sheath.

[0006] In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

[0007] An inflation and deflation control device for air cushion, comprising a controller and a gas pump electrically connected with the controller, further comprising:

[0008] an air inlet solenoid valve in communication with an air inlet of the air pump and an air outlet solenoid valve in communication with an air outlet of the air pump, the air inlet solenoid valve configured to be controlled to switch between at least one air extraction passage and at least one air inlet passage, the air outlet solenoid valve configured to be controlled to switch between at least one air exhaust passage and at least one air charging passage;

[0009] wherein, when the air cushion is in the air charging process, the air outlet solenoid valve is switched to the air charging passage, the air inlet solenoid valve is switched to the air inlet passage, the air inlet of the air pump is communicated with the outside through the air inlet passage, and the air outlet of the air pump is communicated with the air cushion through the air charging passage, so as to charge the air cushion; and,

[0010] when the air cushion is in the air discharging process, the air outlet solenoid valve is controlled to switch to the air exhaust passage, the air inlet solenoid valve is controlled to switch to the air extraction passage, the air inlet of the air pump is communicated with the air cushion through the air extraction passage, and the air outlet of the air pump is communicated with the outside through the air exhaust passage, so as to discharge the air cushion.

[0011] Further, when the air cushion is in the air charging process, the air extraction passage and the air exhaust passage are not conductive; when the air cushion is in the air discharging process, the air inlet passage and the air charging passage are not conductive.

[0012] Further, the air inlet solenoid valve has an air inlet end for controlling the air inlet passage to be conductive, and the air outlet solenoid valve has an air outlet end for controlling the air exhaust passage to be conductive.

[0013] Further, the air inlet solenoid valve comprises a first normally open end and a first normally closed end, and the air outlet solenoid valve comprises a second normally open end and a second normally closed end, the first normally open end and the second normally closed end being in communication with the atmosphere.

[0014] Further, the air inlet solenoid valve comprises a first common end, and the air outlet solenoid valve comprises a second common end, the first common end being arranged at the air inlet of the air pump, and the second common end being arranged at the air outlet of the air pump.

[0015] Further, the air charging and discharging control device further comprises a gas storage device, the gas storage device being in gas connection with the first normally open end and the second normally closed end respectively.

[0016] Further, the first normally closed end and the first common end are in communication to form the air inlet passage, and the first normally open end and the first common end are in communication to form the air extraction passage.

[0017] Further, the second normally closed end and the second common end are in communication to form the air charging passage, and the second normally open end and the second common end are in communication to form the air exhaust passage.

[0018] Further, airtight and mute devices are arranged outside the air pump.

[0019] An air cushion control system comprising the air charging and discharging control device for air cushion, and further comprising an air cushion which is fluidly connected with the air storage device.

[0020] By adopting the above technical scheme, the air cushion control system has the following beneficial effects:

[0021] 1. The air charging and discharging control device for air cushion, the core of which is that the air charging and discharging of the air cushion can be controlled by one air pump, thereby improving the flexibility and efficiency of the air charging and discharging system of the air cushion.

[0022] 2. The air inlet electromagnetic valve and the air outlet electromagnetic valve both comprise a normally open end and a normally closed end, the design of the ends enables the electromagnetic valves to keep the specific passage closed or opened when not powered, so that the air suction passage and the air exhaust passage are not conductive during the air charging process, and the air inlet passage and the air charging passage are not conductive during the air discharging process, thereby ensuring the independence and efficiency of the air charging and discharging process.

[0023] 3. The air cushion control system further comprises an air storage device which is connected with the specific port of the electromagnetic valve, and is used for storing air during the air charging process and serving as an air source during the air discharging process, thereby improving the efficiency of air utilization and making the air discharging process more stable and controllable. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced as follows, and obviously, the drawings described in the following description only relate to some embodiments of the present application, but not limit the present application.

[0025] Figure 1 is the circuit module diagram of the air cushion control system of the present application.

[0026] Figure 2 is the air charging process air flow schematic diagram of the air charging and discharging control device of the present application.

[0027] Figure 3 is the air exhaust process air flow schematic diagram of the air charging and discharging control device of the present application.

[0028] Figure 4 is the PCB packaging diagram of the present application.

[0029] Reference signs:

[0030] In the figure, 10 air cushion; 20 controller; 30 air pump; 31 air inlet; 32 air outlet; 40 air inlet electromagnetic valve; 50 air outlet electromagnetic valve; 60 air storage device; 70 sealed box. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the present application will be further described in detail below with reference to the drawings. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] Unless otherwise defined, the technical terms or scientific terms used in the patent document should be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the patent specification and claims of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one", "an" or "the" and similar words do not represent a quantity limit, but represent the existence of at least one. "Including" or "containing" and similar words mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. "Center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are only used to represent relative positional relationships, when the absolute position of the described object changes, the relative positional relationship may also change accordingly, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication. For ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning of the utility model according to specific circumstances.

[0035] Some embodiments of the utility model are described in detail below in conjunction with the drawings. In the case of no conflict, the features in the following examples can be combined with each other.

[0036] Please refer to Figures 1-4 The utility model discloses a kind of gas cushion's inflation and deflation control device, and discloses a kind of gas cushion control system applied to the inflation and deflation control device.The system further includes gas cushion 10, which is fluidly connected to the gas storage device.The gas cushion 10 can include multiple inflatable layers and be placed flat on a support frame so that a user can lie flat on top of it, and the multiple inflatable layers can be assembled side by side, stacked, or in a combination thereof.The inflation and deflation control device of the utility model includes a controller 20, a gas pump 30 electrically connected to the controller 20, an inlet electromagnetic valve 40 in communication with an inlet port 31 of the gas pump 30, and an outlet electromagnetic valve 50 in communication with an outlet port 32 of the gas pump.The inlet electromagnetic valve 40 is configured to switch between at least one suction channel and at least one inlet channel under control, and the outlet electromagnetic valve is configured to switch between at least one exhaust channel and at least one inflation channel under control.When the gas cushion is in the inflation process, the outlet electromagnetic valve 50 switches to the inflation channel, the inlet electromagnetic valve 40 switches to the inlet channel, the inlet port of the gas pump 30 is connected to the outside through the inlet channel, and the outlet port of the gas pump 30 is connected to the gas cushion 10 through the inflation channel to inflate the gas cushion 10.And when the gas cushion 10 is in the deflation process, the outlet electromagnetic valve 50 switches to the exhaust channel, the inlet electromagnetic valve 40 switches to the suction channel, the inlet port of the gas pump 30 is connected to the gas cushion 10 through the suction channel, and the outlet port of the gas pump 30 is connected to the outside through the exhaust channel to deflate the gas cushion 10.Specifically, when the gas cushion 10 is in the inflation process, the suction channel and the exhaust channel are not conductive;When the gas cushion is in the deflation process, the inlet channel and the inflation channel are not conductive.

[0037] It should be noted that by integrating the intake electromagnetic valve and the exhaust electromagnetic valve, and working with the controller and the air pump connected with electricity, the utility model can accurately control the inflation and deflation process of the air cushion. The intake electromagnetic valve can switch between the air extraction channel and the air inlet channel, while the exhaust electromagnetic valve can switch between the exhaust channel and the inflation channel. This design ensures that the air cushion quickly and stably reaches the required pressure when inflating, and quickly discharges gas when deflating, improving the efficiency and flexibility of the overall operation. And in the deflation process, the air extraction channel and the exhaust channel are designed to be not conductive, while the air inlet channel and the inflation channel are also not conductive. This design effectively avoids the backflow of gas during inflation and deflation, not only protects the air pump and the electromagnetic valve from damage, but also ensures the orderly flow of gas inside the air cushion, improving the stability and reliability of the system.

[0038] Further, the intake electromagnetic valve 40 has an intake end for controlling the conduction of the air inlet channel, and the exhaust electromagnetic valve 50 has an exhaust end for controlling the conduction of the exhaust channel. Specifically, the intake electromagnetic valve 40 includes a first normally open end, a first normally closed end, and a first common end, and the exhaust electromagnetic valve 50 includes a second normally open end, a second normally closed end, and a second common end. Specifically, the first normally open end is configured as an intake end in communication with the atmosphere, and the second normally closed end is configured as an exhaust end in communication with the atmosphere. The first common end is configured at the air inlet of the air pump, and the second common end is configured at the air outlet of the air pump. In this embodiment, the first normally closed end and the first common end form an air inlet channel in communication, the first normally open end and the first common end form an air extraction channel in communication, the second normally closed end and the second common end form an inflation channel in communication, and the second normally open end and the second common end form an exhaust channel in communication. Further, the inflation and deflation control device further includes a gas storage device 60 connected in gas communication with the first normally open end and the second normally closed end.

[0039] It should be noted that the air pump 30 can guide the gas to flow in one direction by driving the internal rotating part, the intake electromagnetic valve 40 and the exhaust electromagnetic valve 50 can be three-way two-position electromagnetic valves, which can change the position of the valve and the conduction path between the valve ports by the internal magnetic unit when powered on. The intake electromagnetic valve 40 and the exhaust electromagnetic valve 50 are connected to the plurality of inflation layers of the mattress through the gas storage device.

[0040] The controller 20 is connected to the air inlet electromagnetic valve 40, the air outlet electromagnetic valve 50 and the air pump 30, wherein the controller 20 can include a control chip, a control circuit, a signal receiving component and a signal transmitting component, so as to effectively transmit and operate information, and drive the air inlet electromagnetic valve 40, the air outlet electromagnetic valve 50 and the air pump 30 to work, and the present application is not limited to this; in the embodiment, the controller 20 can control the energization of the opening and closing ends of the air inlet electromagnetic valve 40 and the air outlet electromagnetic valve 50 and the start of the air pump 30, so as to inflate or deflate the plurality of inflatable layers; by the system configuration mode, the flow path of the air flow can be effectively changed by the opening and closing of the air inlet electromagnetic valve 40 and the air outlet electromagnetic valve 50, so that the air pump can extract the gas in the atmosphere or the plurality of inflatable layers of the air cushion by a single rotation direction, thereby effectively controlling the inflation of the air cushion.

[0041] It should be noted that the air inflation and deflation control device in the present application can be further operated by a smart electronic device, which can be a smart phone, a tablet computer or the like, but the present application is not limited to this, and the smart electronic device can also be other handheld devices with wireless transmission function. In the embodiment, when the air cushion is in the inflation process, the smart electronic device is connected to the controller, the smart electronic device transmits an inflation signal to the controller, the controller transmits the inflation signal to the air inlet electromagnetic valve 40 and the air outlet electromagnetic valve 50, so that the first normally closed end is turned on, the air pump guides the gas in the atmosphere to enter the first normally closed end, and then passes through the air inlet channel, the first common end, the air pump 30, the second common end, the inflation channel, the second normally closed end and the gas storage device 60, so as to inflate the air cushion. When the air cushion 10 is in the deflation process, the smart electronic device transmits a deflation signal to the controller, the controller sends the deflation signal, the air inlet electromagnetic valve 40 and the air outlet electromagnetic valve 50 are not energized, and the air pump 30 guides the gas in the gas storage device 60 to pass through the first normally closed end, the air extraction channel, the first common end, the air pump, the second common end, the air exhaust channel and the second normally closed end, so as to deflate the air cushion 10.

[0042] Further, the air pump 30 is externally provided with a sealed mute device. Specifically, the mute device is a sealed box 70. The sealed box 70 is externally connected with the air pipe in communication with the air inlet electromagnetic valve 40 and the air outlet electromagnetic valve 50, so that the air around the air pump can circulate, thereby reducing the working temperature of the air pump.

[0043] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An inflation and deflation control device for an air cushion, comprising a controller and an air pump electrically connected to the controller, characterized in that: Also includes: an air inlet solenoid valve in communication with the air inlet of the air pump and an air outlet solenoid valve in communication with the air outlet of the air pump, wherein the air inlet solenoid valve is configured to controllably switch between at least one air extraction channel and at least one air inlet channel, and the air outlet solenoid valve is configured to controllably switch between at least one air exhaust channel and at least one air charging channel; Wherein, when the air cushion is in the process of being inflated, the air outlet solenoid is switched to the inflation channel, the air inlet solenoid valve is switched to the inlet channel, the air inlet of the air pump is connected to the outside through the inlet channel, and the air outlet is connected to the air cushion through the inflation channel to inflate the air cushion; and, When the air cushion is in the process of deflation, the air outlet solenoid valve is controlled to switch to the exhaust channel, and the air inlet solenoid valve is controlled to switch to the suction channel. The air inlet of the air pump is connected to the air cushion through the suction channel, and its air outlet is connected to the outside world through the exhaust channel to pump air into the air cushion.

2. The inflation and deflation control device for an air cushion according to claim 1, characterized in that: When the air cushion is in the process of inflating, the air suction channel and the air exhaust channel are not connected; when the air cushion is in the process of deflating, the air intake channel and the air inflation channel are not connected.

3. The inflation and deflation control device for an air cushion according to claim 1, characterized in that: The air intake solenoid valve has an air intake end for controlling the conduction of an air intake passage, and the air outlet solenoid valve has an exhaust end for controlling the conduction of an exhaust passage.

4. The inflation and deflation control device for an air cushion according to claim 3, characterized in that: The air intake solenoid valve includes a first normally open end and a first normally closed end, and the air outlet solenoid valve includes a second normally open end and a second normally closed end, and the first normally open end and the second normally closed end are connected to the atmosphere.

5. The inflation and deflation control device for an air cushion according to claim 4, characterized in that: The air inlet solenoid valve includes a first common end, and the air outlet solenoid valve includes a second common end. The first common end is configured at the air inlet of the air pump, and the second common end is configured at the air outlet of the air pump.

6. The inflation and deflation control device for an air cushion according to claim 4, characterized in that: The gas charging and discharging control device further includes a gas storage device, which is respectively connected to the first normally open end and the second normally closed end.

7. The inflation and deflation control device for an air cushion according to claim 5, characterized in that: The first normally closed end and the first common end are connected to form an air intake channel, and the first normally open end and the first common end are connected to form an air extraction channel.

8. The inflation and deflation control device for an air cushion according to claim 5, characterized in that: The second normally closed end and the second common end are connected to form an air charging channel, and the second normally open end and the second common end are connected to form an air discharging channel.

9. The inflation and deflation control device for an air cushion according to claim 1, characterized in that: A sealed mute device is provided outside the air pump.

10. An air cushion control system, characterized in that: The air cushion inflation and deflation control device comprises the air cushion as claimed in any one of claims 1 to 9, and further comprises an air cushion, wherein the air cushion is fluidically connected to the air storage device.

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