Inflating and deflating assembly and air pump device having it

Abstract

The utility model discloses a kind of inflation and deflation subassembly and the air pump device with it. Inflation and deflation subassembly includes body, air cock and valve, the body has air cavity in, the body has with the first port, second port and third port of air cavity intercommunication, the air cock is installed in the second port, the valve is installed in the third port, the first port is suitable for with air pump detachably connected. The utility model embodiment inflation and deflation subassembly, can be added to original air pump, reduce cost, when deflating, can improve deflation efficiency, avoid frequent operation, improve user experience.

Description

Technical Field

[0001] This utility model belongs to the field of air pump technology, specifically relating to an air filling and discharging component and an air pump device having the same. Background Technology

[0002] Cars are becoming increasingly widely used as a daily means of transportation. Tire pressure significantly impacts driving safety and comfort; therefore, tire pressure needs to be adjusted when ambient temperature or road conditions change. For example, in high-altitude areas with large temperature differences between day and night, tire pressure needs to be adjusted according to the ambient temperature to ensure driving safety. Similarly, when driving conditions change from highways to deserts, snowfields, grasslands, or swamps, tire pressure needs to be reduced to adapt to the corresponding road conditions.

[0003] In related technologies, tires are deflated by mechanically pressing the valve core. However, the deflation rate is uncontrollable, requiring repeated deflation and pressure checks using a tire pressure gauge. This results in low deflation efficiency and accuracy, and the time required to deflate all tires for one cycle is excessive, especially in extreme environments, leading to a poor user experience. Furthermore, the air pumps used in these technologies typically only have inflation and overinflation protection functions, lacking deflation capabilities. Directly replacing the existing air pump would result in its idleness and waste, and the replacement cost would be high. Summary of the Invention

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of this utility model propose an inflation / deflation assembly that can be added to an existing air pump, reducing costs and improving user experience.

[0006] An embodiment of this utility model provides an air pump device.

[0007] The inflation / deflation assembly of this utility model includes: a body, an air nozzle, and a valve. The body has an air chamber and has a first port, a second port, and a third port that communicate with the air chamber. The air nozzle is installed at the second port, and the valve is installed at the third port. The first port is adapted to be detachably connected to an air pump.

[0008] The inflation / deflation assembly of this utility model can be added to an existing air pump to reduce costs. When deflation is performed, it can improve deflation efficiency, avoid frequent operation, and improve user experience.

[0009] In some embodiments, the body is a tubular body having a first end and a second end, the first end being open to form the first port, the second end being open to form the second port, and the third port being formed on the sidewall of the tubular body.

[0010] In some embodiments, the inflation / deflation assembly further includes a pressure sensor and a control board. The control board includes a control chip. The pressure sensor is in communication with the air chamber, and the control chip is connected to the valve and the pressure sensor. The control chip is used to control the valve to open and close to release air and stop releasing air based on the air pressure detected by the pressure sensor in the air chamber.

[0011] In some embodiments, when the air pressure in the air chamber is greater than a preset pressure, the control chip controls the valve to release air at multiple intervals.

[0012] In some embodiments, the duration of each venting is a first preset duration, and the duration of cessation of venting between adjacent ventings is a second preset duration.

[0013] In some embodiments, the inflation / deflation assembly further includes a setting unit disposed on the control panel, the setting unit being used to set at least one of the preset pressure, the first preset duration, and the second preset duration.

[0014] In some embodiments, the control chip determines the duration of each venting and the duration of cessation of venting between adjacent ventings based on the difference between the pressure in the air chamber and the preset pressure.

[0015] In some embodiments, the inflation / deflation assembly further includes a deflation mode button on the control board, the deflation mode button being used to adjust a preset deflation mode, and the control chip controlling the valve to deflate according to the selected preset deflation mode.

[0016] In some embodiments, different preset venting modes may have at least one of the following: preset pressure, number of venting cycles of the valve within a preset time, duration of each venting cycle, and duration of cessation of venting between adjacent venting cycles.

[0017] In some embodiments, the inflation / deflation assembly further includes a display screen disposed on the control panel, the display screen being used to display deflation parameters, the deflation parameters including at least one of the following: the air pressure in the air chamber detected by the air pressure sensor, the preset pressure, the number of deflations by the valve within a preset time, the duration of each deflation, and the duration of cessation of deflation between adjacent deflations.

[0018] In some embodiments, the valve has a wire with a wire connector at its free end for detachable connection to the control panel.

[0019] In some embodiments, the control board has leads, the free ends of which have lead connectors for detachable connection with the wire connectors.

[0020] In some embodiments, the body has a connection portion for detachable connection with an air pump.

[0021] In some embodiments, the connection is a threaded connector or a quick connector.

[0022] The air pump device of this utility model embodiment includes: an air pump and an air filling / discharging assembly. The air pump has an exhaust port, and the air filling / discharging assembly is the air filling / discharging assembly according to any of the above embodiments. The first port of the air filling / discharging assembly is detachably connected to the exhaust port of the air pump.

[0023] In some embodiments, the inflation / deflation assembly is the inflation / deflation assembly described in the above partial embodiments, and the control board is mounted on the air pump.

[0024] In some embodiments, the air pump further includes a motor controller for controlling the motor of the air pump. The motor controller includes a PCB board and a motor control chip disposed on the PCB board. The air pressure sensor is integrated on the PCB board, and the PCB board is provided with an air pipe connector communicating with the air pressure sensor and the air chamber.

[0025] In some embodiments, the air pump further includes a pressure relief valve and an air guide pipe, and the air pump has an airflow channel, which has an overpressure protection port, a detection port and the exhaust port;

[0026] The pressure relief valve is connected to the overpressure protection air port. The air guide tube has a first end and a second end. The first end of the air guide tube is connected to the air pipe connector, and the second end of the air guide tube is connected to the detection air port. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the inflation / deflation assembly according to an embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the air pump device according to an embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the control board in the air pump device of this utility model embodiment.

[0030] Figure 4 This is a schematic diagram of the motor controller in the air pump device according to an embodiment of the present invention.

[0031] Figure label:

[0032] 1000. Air pump device;

[0033] 100. Inflation / deflator assembly; 200. Air pump;

[0034] 1. Body; 11. First port; 12. Second port; 13. Third port; 14. Connecting part;

[0035] 2. Air valve;

[0036] 3. Valve; 31. Wire; 311. Wire connector;

[0037] 4. Control board; 41. Lead wire; 411. Lead wire connector; 42. Display screen; 43. Venting mode button;

[0038] 5. Barometric pressure sensor;

[0039] 6. Motor controller; 61. PCB board; 62. Air pipe connector;

[0040] 7. Airflow channel; 71. Overpressure protection port; 72. Detection port; 73. Exhaust port;

[0041] 8. Pressure relief valve;

[0042] 9. Air delivery tube. Detailed Implementation

[0043] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] The inflation / deflation assembly 100 of this utility model is described below according to an embodiment.

[0045] See Figures 1-4 The inflation / deflation assembly 100 of this embodiment includes a body 1, an air nozzle 2, and a valve 3. The inflation / deflation assembly 100 in this embodiment can be used independently to deflate tires, air tanks, and other air storage devices, or it can be connected to an air pump 200 in related technologies and used together with the air pump 200 to inflate or deflate air storage devices according to actual needs. The following embodiments use tire inflation / deflation as an example to describe the structure and effects of the inflation / deflation assembly 100.

[0046] The main body 1 has an air chamber, and has a first port 11, a second port 12, and a third port 13 that communicate with the air chamber. An air nozzle 2 is installed at the second port 12 and is used to connect to the valve on the tire. After the air nozzle 2 is connected to the valve, the air chamber of the main body 1 communicates with the inner cavity of the tire. A valve 3 is installed at the third port 13. When the valve 3 is opened, the air inside the tire can pass through the air chamber of the main body 1 and be discharged through the third port 13, thus deflating the tire.

[0047] The first port 11 is adapted to be detachably connected to the air pump 200. This allows the inflation / deflation assembly 100 to be assembled with the air pump 200. When inflating, the valve 3 is closed, without affecting the original inflation function of the air pump 200. Of course, the first port 11 can also be sealed with an end cap, thereby allowing the inflation / deflation assembly 100 to be used independently for deflating tires.

[0048] When driving scenarios change from highways to deserts, snowfields, grasslands, swamps, etc., tires need to be deflated to improve grip, handling, and safety. Due to the harsh environment, mechanical deflation using existing technologies requires users to maintain a squatting position for extended periods and use a rigid rod to press the valve core, resulting in a poor user experience. This invention's inflation / deflation component 100 simplifies the deflation process and improves efficiency. It can be used independently or added to an existing air pump 200, adding deflation functionality without affecting the pump's inflation function, reducing the cost of replacing the pump, and improving the user experience.

[0049] In some embodiments, the inflation / deflation assembly 100 further includes a pressure sensor 5 and a control board 4. The control board 4 includes a control chip. The pressure sensor 5 is in communication with the air chamber. The pressure sensor 5 can be directly connected to the body 1, with its detection end arranged inside the air chamber of the body 1. Alternatively, the pressure sensor 5 and the air chamber of the body 1 can be connected via a pipe. The control chip is connected to the valve 3 and the pressure sensor 5, and is used to control the valve 3 to open and close to vent and stop venting based on the air pressure detected by the pressure sensor 5 in the air chamber.

[0050] Valve 3 can be a solenoid valve 3, and air pressure sensor 5 is used to detect the air pressure in the air chamber of body 1, that is, the current tire pressure. When the tire pressure is too high, valve 3 can be opened by control board 4 to automatically deflate the tire until the preset pressure is reached, at which point valve 3 can be automatically closed.

[0051] In this embodiment, when the air pressure in the air chamber exceeds a preset pressure, the control chip can control valve 3 to release air at multiple intervals. By controlling the opening time of valve 3 each time, the amount of air released per cycle can be more accurately controlled. After the previous air release is completed, the air pressure sensor 5 can obtain a more accurate tire pressure after valve 3 closes and the tire pressure stabilizes. This allows for more accurate adjustment of the next air release time and amount.

[0052] This invention, through multiple interval deflations, can more accurately adjust the tire pressure to the preset pressure, reducing errors and avoiding over-reliance on user experience. During the automatic deflation process, the user does not need to intervene much and only needs to wait for the deflation to finish, greatly improving practicality and user experience.

[0053] The following describes an inflation / deflation assembly 100 according to some specific embodiments of the present invention.

[0054] See Figures 1-4 The inflation / deflation assembly 100 of this embodiment includes a body 1, an air nozzle 2, a valve 3, a pressure sensor 5, and a control board 4. The inflation / deflation assembly 100 in this embodiment can be used independently to deflate tires, air tanks, and other air storage devices, or it can be connected to an air pump 200 in related technologies and used together with the air pump 200 to inflate or deflate air storage devices according to actual needs. The following embodiments use tire inflation / deflation as an example to describe the structure and effects of the inflation / deflation assembly 100.

[0055] The main body 1 has an air cavity. The main body 1 is a tubular body with a first end and a second end. The first port 11 is open to form the first port 11, and the second port 12 is open to form the second port 12. A third port 13 is formed on the side wall of the tubular body. The first port 11, the second port 12 and the third port 13 are all connected to the air cavity.

[0056] The first port 11 of the body 1 has a connection part 14 for detachable connection with the air pump 200, and the connection part 14 is a quick connector. Preferably, the connection part 14 is a threaded connector.

[0057] The valve 2 is installed at the second port 12 and is used to connect to the valve on the tire. After the valve 2 is connected to the valve, the air chamber of the body 1 is connected to the inner cavity of the tire. The valve 3 can be a solenoid valve 3, which is installed at the third port 13. When the valve 3 is opened, the air in the tire can pass through the air chamber of the body 1 and be discharged through the third port 13, thereby releasing air from the tire.

[0058] The first port 11 is adapted to be detachably connected to the air pump 200. This allows the inflation / deflation assembly 100 to be assembled with the air pump 200. When inflating, the valve 3 is closed, without affecting the original inflation function of the air pump 200. Of course, the first port 11 can also be sealed with an end cap, thereby allowing the inflation / deflation assembly 100 to be used independently for deflating tires.

[0059] The air pressure sensor 5 is connected to the air chamber and is used to detect the air pressure in the air chamber of the body 1, that is, the current tire pressure.

[0060] The control board 4 includes a control chip, a setting unit, a deflation mode button 43, and a display screen 42. The control chip is connected to the valve 3 and the air pressure sensor 5, and is used to control the valve 3 to open and close to deflate and stop deflation based on the air pressure detected by the air pressure sensor 5 in the air chamber. When the tire pressure is too high, the control board 4 can control the valve 3 to open and automatically deflate the tire until the preset pressure is reached, at which point the valve 3 will automatically close.

[0061] Valve 3 has a wire 31, control board 4 has a lead wire 41, and the free end of wire 31 has a lead wire connector 311. The free end of lead wire 41 has a lead wire connector 411, and the wire connector 311 and lead wire connector 411 are detachably connected.

[0062] In this embodiment, when the air pressure in the air chamber is greater than the preset pressure, the control chip can control valve 3 to release air at multiple intervals. The control chip also determines the duration of each release and the duration of stopping the release between adjacent releases based on the difference between the pressure in the air chamber and the preset pressure.

[0063] The duration of venting after each opening of valve 3 is a first preset duration, and the duration of venting cessation between adjacent venting events is a second preset duration. The setting unit is used to set at least one of the preset pressure, the first preset duration, and the second preset duration.

[0064] For example, if a car was previously driving on a highway and is about to enter the desert, the setting unit can set a preset pressure as the first preset pressure based on the tire's grip requirements in the desert. Then, the control chip can control valve 3 to release air at intervals until the tire pressure reaches the first preset pressure.

[0065] For example, if a car was previously driving on a highway and is about to enter a swamp, the setting unit can set a preset pressure to a second preset pressure based on the tire's grip requirements in the swamp. Then, the control chip can control valve 3 to release air at intervals until the tire pressure reaches the second preset pressure.

[0066] By controlling the opening time of valve 3 each time, the amount of air released in a single instance can be accurately controlled. Furthermore, after the previous air release is completed, the tire pressure sensor 5 can obtain a more accurate tire pressure after valve 3 closes and the tire pressure tends to stabilize, so as to more accurately adjust the timing and amount of air released in the next air release.

[0067] In this embodiment, the control chip can have multiple preset venting modes built-in. These preset venting modes can correspond to different scenarios such as highways, deserts, snowfields, grasslands, and swamps. There can be multiple venting mode buttons 43, each used to select the corresponding preset venting mode. After the driving scenario of the car is switched, the control chip can control valve 3 to automatically vent according to the selected preset venting mode.

[0068] Under different preset venting modes, at least one of the following is different: preset pressure, number of venting times of valve 3 within a preset time, duration of each venting, and duration of cessation of venting between adjacent venting.

[0069] For example, in the preset venting mode corresponding to snow and the preset venting mode corresponding to swamp, the preset pressure and the number of times valve 3 vents within a preset time may be different, but the duration of each venting by valve 3 and the duration of stopping venting between adjacent ventings may be the same.

[0070] For example, in the preset venting mode corresponding to snow and the preset venting mode corresponding to desert, the preset pressure, the number of times valve 3 vents within a preset time, the duration of each venting, and the duration of stopping venting between adjacent ventings can all be different.

[0071] In this embodiment, the display screen 42 is used to display the venting parameters, which include at least one of the following: the air pressure in the air chamber detected by the air pressure sensor, the preset pressure, the number of times the valve 3 vents within a preset time, the duration of each venting, and the duration of cessation of venting between adjacent ventings.

[0072] The information displayed on screen 42 allows users to clearly see the approximate deflation time without needing to constantly monitor it, thus improving the user experience. This is especially beneficial in harsh environments such as snow, swamps, and deserts with strong winds, where users do not need to manually press the tires or wait for extended periods.

[0073] For example, the number of times the gas is released on the display screen 42 can be used to roughly judge the time required for gas release. By sensing the number of times the gas release starts and stops, it can be determined whether the gas release is about to end. Users can intuitively judge the progress of the gas release, resulting in a good user experience.

[0074] This invention, through multiple interval deflations, can more accurately adjust the tire pressure to the preset pressure, reducing errors and avoiding over-reliance on user experience. During the automatic deflation process, the user does not need to intervene; they only need to wait for the deflation to complete, greatly improving practicality and user experience.

[0075] When driving scenarios change from highways to deserts, snowfields, grasslands, swamps, etc., tires need to be deflated to improve tire grip, handling, and safety. This utility model's inflation / deflation component 100 simplifies the deflation process and improves deflation efficiency. It can be used independently or added to an existing air pump 200, adding deflation functionality without affecting the air pump 200's inflation function, reducing the cost of replacing the air pump 200, and improving the user experience.

[0076] The air pump device 1000 of this utility model embodiment is described below.

[0077] See Figures 1-4An air pump device 1000 includes an air pump 200 and an inflation / deflation assembly 100. The air pump 200 has an exhaust port 73. The inflation / deflation assembly 100 is an inflation / deflation assembly 100 according to any of the above embodiments. The first port 11 of the inflation / deflation assembly 100 is detachably connected to the exhaust port 73 of the air pump 200. The air pump 200 can be any air pump 200 in the related art. The inflation / deflation assembly 100 can be directly connected to the exhaust port 73 of the air pump 200, adding a deflation function without affecting the original inflation function of the air pump 200. During inflation, the valve 3 of the inflation / deflation assembly 100 is closed, and the body 1 is used as part of the inflation pipeline of the air pump 200. During deflation, the airflow channel 7 of the air pump 200 is self-sealing, so the first port 11 of the body 1 will not leak air. By controlling the opening or closing of the valve 3, the tire can be deflated.

[0078] The air pump device 1000 of this utility model has at least some of the beneficial effects that are the same as those of the air filling and discharging assembly 100 in the above embodiments, so they will not be described again.

[0079] The following describes some specific embodiments of the air pump device 1000 of this utility model.

[0080] See Figures 1-4 An air pump device 1000 includes an air pump 200 and an air filling / deflating assembly 100.

[0081] The structure of the air pump device 1000 in this embodiment is basically the same as that in the previous embodiment, except that the air pump 200 has an airflow channel 7, which has an overpressure protection port 71, a detection port 72, and an exhaust port 73. The three ports can be arranged sequentially along the extension direction of the airflow channel 7 for easy alignment and connection with other components. The first port 11 of the inflation / deflation assembly 100 is detachably connected to the exhaust port 73 of the air pump 200, and the control board 4 of the inflation / deflation assembly 100 is mounted on the housing of the air pump 200. The control board 4 of the inflation / deflation assembly 100 can be integrated into the control panel of the air pump 200, or the control panel of the air pump 200 and the control board 4 of the inflation / deflation assembly 100 can be separately mounted on the housing of the air pump 200.

[0082] See Figure 2 and Figure 4The air pump 200 also includes a motor, a motor controller 6, a pressure relief valve 8, and an air guide pipe 9. The motor controller 6 controls the motor operation of the air pump 200. The motor controller 6 includes a PCB board 61 and a motor control chip mounted on the PCB board 61. The air pressure sensor 5 is integrated on the PCB board 61, and the PCB board 61 has an air pipe connector 62 that communicates with the air pressure sensor 5 and the air chamber. This allows the detection signal from the air pressure sensor 5 to be used by both the motor controller 6 and the inflation / deflation assembly 100. During inflation, the air pressure sensor 5 can feed back the detected tire pressure information to the motor controller 6, thereby controlling the motor operation. During deflation, the air pressure sensor 5 can feed back the detected tire pressure information to the valve 3, thereby controlling the opening and closing of the valve 3.

[0083] The pressure relief valve 8 is connected to the overpressure protection port 71, which provides over-charge protection during inflation to ensure inflation safety. The air guide tube 9 has a first end and a second end. The first end of the air guide tube 9 is connected to the air pipe connector 62, and the second end is connected to the detection port 72. The air guide tube 9 connects the airflow channel 7 to the pressure sensor 5, thereby reducing the installation requirements of the pressure sensor 5 and allowing it to be integrated onto the PCB board 61 of the motor controller 6, improving its practicality.

[0084] In this embodiment, the air pump 200 and the inflation / deflation assembly 100 are integrated, allowing users to inflate and deflate tires as needed. Not only can automatic inflation be achieved, but during the automatic deflation process, users do not need to participate much and only need to wait for the deflation to finish. The deflation operation is simple, greatly improving practicality and user experience.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0087] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0088] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A charge and discharge assembly, characterized by, include: The device comprises a body, an air nozzle, and a valve. The body has an air chamber and a first port, a second port, and a third port that communicate with the air chamber. The air nozzle is installed at the second port, and the valve is installed at the third port. The first port is adapted to be detachably connected to an air pump.

2. The inflation and deflation assembly of claim 1, wherein, The body is a tubular body, which has a first end and a second end. The first end is open to form the first port, the second end is open to form the second port, and the third port is formed on the side wall of the tubular body.

3. The inflation and deflation assembly of claim 1, wherein, The inflation / deflation assembly also includes a pressure sensor and a control board. The control board includes a control chip. The pressure sensor is connected to the air chamber, and the control chip is connected to the valve and the pressure sensor. It is used to control the valve to open and close to release air and stop releasing air based on the air pressure detected by the pressure sensor in the air chamber.

4. The inflation and deflation assembly of claim 3, wherein, When the air pressure in the air chamber is greater than the preset pressure, the control chip controls the valve to release air at multiple intervals.

5. The inflation and deflation assembly of claim 4, wherein, The duration of each venting is the first preset duration, and the duration of cessation between adjacent venting is the second preset duration.

6. The inflation and deflation assembly of claim 5, wherein, The inflation / deflation assembly further includes a setting unit disposed on the control panel, the setting unit being used to set at least one of the preset pressure, the first preset duration, and the second preset duration.

7. The inflation and deflation assembly of claim 4, wherein, The control chip determines the duration of each venting and the duration of cessation between adjacent venting based on the difference between the pressure inside the air chamber and the preset pressure.

8. The inflation and deflation assembly of claim 3, wherein, The inflation / deflation assembly also includes a deflation mode button on the control board. The deflation mode button is used to adjust a preset deflation mode, and the control chip controls the valve to deflate according to the selected preset deflation mode.

9. The inflation and deflation assembly of claim 8, wherein, Different preset venting modes have at least one of the following: preset pressure, number of venting times of the valve within a preset time, duration of each venting, and duration of cessation of venting between adjacent ventings.

10. The inflation and deflation assembly of claim 3, wherein, The inflation / deflation assembly also includes a display screen on the control board. The display screen is used to display deflation parameters, which include at least one of the following: the air pressure in the air chamber detected by the air pressure sensor, a preset pressure, the number of deflations by the valve within a preset time, the duration of each deflation, and the duration of cessation of deflation between adjacent deflations.

11. The air charging and discharging assembly of claim 3, wherein, The valve has a wire, the free end of which has a wire connector for detachable connection with the control panel.

12. The inflation and deflation assembly of claim 11, wherein, The control board has leads, the free ends of which have lead connectors for detachable connection with the wire connectors.

13. The inflation and deflation assembly of any one of claims 1-12, wherein, The body has a connection portion for detachable connection with an air pump.

14. The inflation and deflation assembly of claim 13, wherein, The connection part is a threaded joint or a quick joint.

15. A gas pump device, characterized by include: An air pump and an air filling / draining assembly, the air pump having an exhaust port, the air filling / draining assembly being an air filling / draining assembly according to any one of claims 1 to 14, wherein a first port of the air filling / draining assembly is detachably connected to the exhaust port of the air pump.

16. The gas pump device of claim 15, wherein, The inflation / deflation assembly is the inflation / deflation assembly according to claim 3, and the control board is mounted on the air pump.

17. The gas pump device of claim 16, wherein, The air pump also includes a motor controller for controlling the motor of the air pump. The motor controller includes a PCB board and a motor control chip disposed on the PCB board. The air pressure sensor is integrated on the PCB board, and the PCB board is provided with an air pipe connector that communicates with the air pressure sensor and the air chamber.

18. The air pump device of claim 17, wherein, The air pump also includes a pressure relief valve and an air guide pipe. The air pump has an airflow channel, which has an overpressure protection port, a detection port and an exhaust port. The pressure relief valve is connected to the overpressure protection air port. The air guide tube has a first end and a second end. The first end of the air guide tube is connected to the air pipe connector, and the second end of the air guide tube is connected to the detection air port.

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