Inflation and deflation assembly and air pump device with same

Abstract

The embodiment of the invention discloses an inflation and deflation assembly and an air pump device with the inflation and deflation assembly. The inflation and deflation assembly comprises a body, an air tap and a valve, an air cavity is formed in the body, the body is provided with a first port, a second port and a third port which are communicated with the air cavity, the air tap is installed at the second port, the valve is installed at the third port, and the first port is suitable for being detachably connected with an air pump. The inflation and deflation assembly can be additionally arranged on an original air pump, the cost is reduced, and during deflation, the deflation efficiency can be improved, frequent operation is avoided, and the user experience is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air pumps, and in particular relates to an air filling and discharging assembly and an air pump device having the same. Background Art

[0002] Cars are becoming increasingly common as a means of transportation. Tire pressure significantly impacts driving safety and comfort, so tire pressure adjustment is necessary whenever the ambient temperature or road conditions change. For example, in high-altitude areas with large temperature swings between day and night, tire pressure adjustment based on ambient temperature is necessary to ensure driving safety. Another example is when driving on a highway changes to a desert, snowy terrain, grassland, or swamp, tires may need to be deflated to lower pressure to adapt to the road conditions.

[0003] Conventional tire deflation involves mechanically deflating the valve core. However, the amount of deflation is uncontrollable and requires repeated deflation and pressure measurement with a tire pressure gauge. This results in low deflation efficiency and accuracy, and a prolonged period of time required to deflate all tires, particularly in extreme environments, resulting in a poor user experience. Air pumps typically only provide inflation and overfill protection, without deflation. Directly replacing the existing pump results in wasted space and high replacement costs. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides an inflation and deflation assembly that can be added to an existing air pump to reduce costs and improve user experience.

[0006] An embodiment of the present invention provides an air pump device.

[0007] The inflation and deflation assembly of an embodiment of the present invention includes: a main body, an air nozzle and a valve, the main body has an air cavity, the main body has a first port, a second port and a third port connected to the air cavity, the air nozzle is installed at the second port, the valve is installed at the third port, and the first port is suitable for being detachably connected to an air pump.

[0008] The inflation and deflation assembly of the embodiment of the present invention can be added to the original air pump to reduce costs. When deflation is performed, it can improve the deflation efficiency, avoid frequent operations, and improve the user experience.

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

[0010] In some embodiments, the inflation and deflation assembly further includes an air pressure sensor and a control board, the control board including a control chip, the air pressure sensor is connected to the air cavity, the control chip is connected to the valve and the air pressure sensor, and is used to control the opening and closing of the valve to deflate and stop deflation according to the air pressure in the air cavity detected by the air pressure sensor.

[0011] In some embodiments, the control chip controls the valve to perform multiple interval deflations when the air pressure in the air cavity is greater than a preset pressure.

[0012] In some embodiments, the duration of each deflation is a first preset duration, and the duration of deflation suspension between adjacent deflations is a second preset duration.

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

[0014] In some embodiments, the control chip determines the duration of each deflation and the duration of stopping deflation between adjacent deflations according to the difference between the pressure in the air cavity and the preset pressure.

[0015] In some embodiments, the inflation and deflation assembly further includes a deflation mode button provided on the control panel, the deflation mode button is used to adjust a preset deflation mode, and the control chip controls the valve deflation according to the selected preset deflation mode.

[0016] In some embodiments, different preset deflation modes have different at least one of the preset pressure, the number of deflations of the valve within a preset time, the duration of each deflation, and the duration of deflation stop between adjacent deflations.

[0017] In some embodiments, the inflation and deflation assembly also includes a display screen provided on the control panel, and the display screen is used to display deflation parameters, and the deflation parameters include the air pressure in the air cavity detected by the air pressure sensor, the preset pressure, the number of deflations of the valve within a preset time, the duration of each deflation, and at least one of the duration of stopping deflation between adjacent deflations.

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

[0019] In some embodiments, the control board has a lead, and a free end of the lead has a lead connector for detachably connecting to the wire connector.

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

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

[0022] The air pump device of an embodiment of the present invention includes: an air pump and an air charging and discharging component, the air pump has an exhaust port, the air charging and discharging component is the air charging and discharging component according to any of the above embodiments, and the first port of the air charging and discharging component is detachably connected to the exhaust port of the air pump.

[0023] In some embodiments, the inflation and deflation assembly is the inflation and deflation assembly according to some of the above embodiments, and the control panel is mounted on the air pump.

[0024] In some embodiments, 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 arranged on the PCB board, the air pressure sensor is integrated on the PCB board, and the PCB board is provided with an air pipe joint connected to the air pressure sensor and the air cavity.

[0025] In some embodiments, the air pump further comprises a pressure relief valve and an air guide tube, the air pump comprises an air flow channel, and the air flow channel comprises 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 joint, and the second end of the air guide tube is connected to the detection air port. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of an inflation and deflation assembly according to an embodiment of the present invention.

[0028] Figure 2 Schematic diagram of an air pump device according to an embodiment of the present invention.

[0029] Figure 3 Schematic diagram of a control panel in an air pump device according to an embodiment of the present invention.

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

[0031] Reference numerals:

[0032] 1000. Air pump device;

[0033] 100. Inflating and deflating assembly; 200. Air pump;

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

[0035] 2. Gas nozzle;

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

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

[0038] 5. Air pressure sensor;

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

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

[0041] 8. Pressure relief valve;

[0042] 9. Airway tube. DETAILED DESCRIPTION

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

[0044] The following describes the inflation and deflation assembly 100 according to an embodiment of the present invention.

[0045] See also Figure 1-Figure 4 The inflation / deflation assembly 100 of the present invention includes a main body 1, a nozzle 2, and a valve 3. The inflation / deflation assembly 100 of this embodiment can be used alone to deflate air storage devices such as tires and air tanks. Alternatively, it can be connected to an air pump 200 of the related art and used together to inflate or deflate the air storage device as needed. The following embodiments describe the structure and effects of the inflation / deflation assembly 100 using the inflation / deflation of tires as an example.

[0046] The body 1 has an air cavity within it, with a first port 11, a second port 12, and a third port 13 communicating with the cavity. A valve 2 is mounted on the second port 12 and is used to connect to the valve on the tire. When the valve 2 is connected to the valve, the air cavity of the body 1 communicates with the inner cavity of the tire. A valve 3 is mounted on the third port 13. When the valve 3 is opened, the air in the tire can pass through the air cavity of the body 1 and be discharged through the third port 13, thereby deflation of the tire.

[0047] First port 11 is adapted to be detachably connected to air pump 200. Thus, inflation / deflation assembly 100 and air pump 200 are assembled together. During inflation, valve 3 is closed, without affecting the original inflation function of air pump 200. Of course, first port 11 can also be sealed with an end cap, so that inflation / deflation assembly 100 can be used alone to deflate a tire.

[0048] When the driving scene of a car is changed from a road to a desert, snow, grassland, swamp and other scenes, the tire needs to be deflated in order to improve the tire's grip, maneuverability, safety, etc. Due to the harsh site environment, if the mechanical pressing and deflation method in the related art is used, the user needs to maintain a squatting position for a long time and use a hard rod to press the valve core of the tire valve for a long time, which results in a poor user experience. The inflation and deflation assembly 100 of the embodiment of the present invention can simplify the deflation steps and improve the deflation efficiency. It can not only be used alone, but also can be added to the original air pump 200. Under the premise of not affecting the inflation function of the air pump 200, the deflation function is added, the cost of replacing the air pump 200 is reduced, and the user experience is improved.

[0049] In some embodiments, the inflation and deflation assembly 100 further includes an air pressure sensor 5 and a control board 4. The control board 4 includes a control chip. The air pressure sensor 5 is in communication with the air cavity. The air pressure sensor 5 can be directly connected to the body 1, with the detection end of the air pressure sensor 5 disposed within the air cavity of the body 1. Alternatively, the air pressure sensor 5 is in communication with the air cavity of the body 1 via a pipe. The control chip is connected to the valve 3 and the air pressure sensor 5, and is configured to control the opening and closing of the valve 3 to perform and stop deflation based on the air pressure within the air cavity detected by the air pressure sensor 5.

[0050] Valve 3 can be a solenoid valve 3, and air pressure sensor 5 is used to detect the air pressure within the air cavity of body 1, that is, the current tire pressure. When the tire pressure is too high, control panel 4 can control valve 3 to open and automatically deflate the tire. When the preset pressure is reached, valve 3 can automatically close.

[0051] In this embodiment, when the air pressure within the air cavity of the control chip exceeds a preset pressure, control valve 3 can perform multiple interval deflations. By controlling the opening time of valve 3 at each time, the amount of deflation can be more accurately controlled. After the previous deflation is completed, the air pressure sensor 5 can obtain a more accurate tire pressure after valve 3 closes and the tire pressure stabilizes, allowing for more precise adjustment of the next deflation time and amount.

[0052] The embodiments of the present invention more accurately adjust tire pressure to a preset pressure by performing multiple interval deflations, reducing errors and avoiding excessive reliance on user experience. During the automatic deflation process, users can simply wait for deflation to complete without requiring extensive interaction, significantly improving practicality and user experience.

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

[0054] See also Figure 1-Figure 4 The inflation / deflation assembly 100 of the embodiment of the present invention includes a body 1, an air nozzle 2, a valve 3, an air pressure sensor 5, and a control board 4. The inflation / deflation assembly 100 of this embodiment can be used alone to deflate air storage devices such as tires and air tanks. Alternatively, it can be connected to an air pump 200 of the related art and used together with the air pump 200 to inflate or deflate the air storage device according to actual needs. The following embodiments describe the structure and effects of the inflation / deflation assembly 100 using the inflation / deflation of tires as an example.

[0055] The body 1 has an air cavity therein. The body 1 is tubular and has 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 portion 14 for detachably connecting to the air pump 200. The connection portion 14 is a quick connector. Preferably, the connection portion 14 is a threaded connector.

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

[0058] First port 11 is adapted to be detachably connected to air pump 200. Thus, inflation / deflation assembly 100 and air pump 200 are assembled together. During inflation, valve 3 is closed, without affecting the original inflation function of air pump 200. Of course, first port 11 can also be sealed with an end cap, so that inflation / deflation assembly 100 can be used alone to deflate a tire.

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

[0060] Control panel 4 includes a control chip, a setting unit, a deflation mode button 43, and a display screen 42. The control chip is connected to valve 3 and air pressure sensor 5 and is used to control the opening and closing of valve 3 to start and stop deflation based on the air pressure within the air cavity detected by air pressure sensor 5. When the tire pressure is too high, control panel 4 controls valve 3 to open and automatically deflate the tire until the preset pressure is reached, at which point valve 3 automatically closes.

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

[0062] In this embodiment, when the air pressure in the air cavity of the control chip is greater than the preset pressure, the control valve 3 can perform multiple interval deflations, and the control chip also determines the duration of each deflation and the duration of stopping deflation between adjacent deflations based on the difference between the pressure in the air cavity and the preset pressure.

[0063] The duration of deflation after each opening of the valve 3 is a first preset duration, and the duration of deflation stop between adjacent deflations 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, when a car was driving on a highway and is about to enter a desert, the setting unit can set the preset pressure to a first preset pressure according to the tire's requirement for grip in the desert, and then the control chip can control valve 3 to deflate the tire at intervals for multiple times until the tire pressure reaches the first preset pressure.

[0065] For example, when a car was driving on a highway and is about to enter a swamp, the setting unit can set the preset pressure to a second preset pressure based on the tire's need for grip in the swamp, and then the control chip can control valve 3 to deflate the air at intervals for multiple times until the tire pressure reaches the second preset pressure.

[0066] By controlling the opening time of valve 3, the amount of air deflated each time can be accurately controlled. Furthermore, after the previous deflation is completed, the air pressure sensor 5 can obtain a more accurate tire pressure after valve 3 closes and the tire pressure stabilizes, allowing for more accurate adjustment of the next deflation time and amount.

[0067] In this embodiment, the control chip can be built into a plurality of preset deflation modes, each corresponding to a variety of different scenarios such as road, desert, snow, grassland, and swamp. There can be multiple deflation mode buttons 43, each used to select a corresponding preset deflation mode. After the vehicle driving scene is switched, the control chip can control valve 3 to automatically deflate according to the selected preset deflation mode.

[0068] In different preset deflation modes, at least one of the preset pressure, the number of deflations by the valve 3 within a preset time, the duration of each deflation, and the duration of deflation stop between adjacent deflations is different.

[0069] For example, in the preset deflation mode corresponding to snow and the preset deflation mode corresponding to swamps, the preset pressure and the number of deflations of valve 3 within the preset time may be different, but the duration of each deflation of valve 3 and the duration of stopping deflation between adjacent deflations may be the same.

[0070] For another example, in the preset deflation mode corresponding to snow and the preset deflation mode corresponding to desert, the preset pressure, the number of deflations of the valve 3 within the preset time, the duration of each deflation, and the duration of the deflation stop between adjacent deflations may all be different.

[0071] In this embodiment, the display screen 42 is used to display the deflation parameters, which include at least one of the air pressure in the air cavity detected by the air pressure sensor, the preset pressure, the number of deflations of the valve 3 within a preset time, the duration of each deflation, and the duration of stopping deflation between adjacent deflations.

[0072] The user can clearly know the approximate deflation time through the information on the display screen 42 without having to constantly pay attention, which improves the user experience. Especially in snowy, swampy, and windy desert environments with harsh climates, the user does not need to manually press the tire mechanically or wait for a long time.

[0073] For example, the time required for deflation can be roughly judged by the number of deflation times on the display screen 42, and whether the deflation is about to end can be judged by the number of starts and stops of the deflation. The user can intuitively judge the progress of the deflation, and the user experience is good.

[0074] The embodiments of the present invention more accurately adjust tire pressure to a preset pressure by performing multiple interval deflations, reducing errors and avoiding excessive reliance on user experience. During the automatic deflation process, users can simply wait for deflation to complete without any interaction, significantly improving practicality and user experience.

[0075] When a car's driving scene changes from a road to a desert, snow, grassland, swamp, or other scene, the tires need to be deflated to improve their grip, maneuverability, and safety. The inflation and deflation assembly 100 of the present invention simplifies the deflation process and improves deflation efficiency. It can be used independently or added to an existing air pump 200, adding a deflation function without affecting the inflation function of the air pump 200, reducing the cost of replacing the air pump 200 and improving the user experience.

[0076] The air pump device 1000 according to an embodiment of the present invention is described below.

[0077] See also Figure 1-Figure 4An air pump device 1000 includes an air pump 200 and an inflation / deflation assembly 100, the air pump 200 having an exhaust port 73, and the inflation / deflation assembly 100 is an air pump 200 according to any of the above-mentioned embodiments, wherein 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 may be an air pump 200 in the related art, and the inflation / deflation assembly 100 may be directly connected to the exhaust port 73 of the air pump 200, thereby 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 main body 1 is used as part of the inflation pipeline of the air pump 200. During deflation, the air flow channel 7 of the air pump 200 is self-sealed, so that the first port 11 of the main body 1 will not leak air, and the tire can be deflated by controlling the valve 3 to be opened or closed.

[0078] At least some of the beneficial effects achieved by the air pump device 1000 in the embodiment of the present invention are the same as those achieved by the inflation and deflation assembly 100 in the above embodiment, and therefore will not be described in detail.

[0079] The air pump device 1000 according to some specific embodiments of the present invention is described below.

[0080] See also Figure 1-Figure 4 , an air pump device 1000 includes an air pump 200 and an air filling and deflation component 100.

[0081] The structure of the air pump device 1000 of this embodiment is basically the same as the air pump device 1000 of the previous embodiment, except that: the air pump 200 has an air flow channel 7, and the air flow channel 7 has an overpressure protection port 71, a detection port 72 and an exhaust port 73. The three ports can be arranged in sequence along the extension direction of the air flow channel 7, which is convenient for alignment connection with other components. The first port 11 of the air charging and discharging component 100 is detachably connected to the exhaust port 73 of the air pump 200, and the control panel 4 of the air charging and discharging component 100 is installed on the outer casing of the air pump 200. The control panel 4 of the air charging and discharging component 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 panel 4 of the air charging and discharging component 100 can be separately installed on the outer casing of the air pump 200.

[0082] See also Figure 2 and Figure 4The air pump 200 also includes a motor, a motor controller 6, a pressure relief valve 8, and an air duct 9. The motor controller 6 is used to control the operation of the motor of the air pump 200. The motor controller 6 includes a PCB board 61 and a motor control chip disposed on the PCB board 61. The air pressure sensor 5 is integrated on the PCB board 61. The PCB board 61 is provided with an air duct connector 62 that connects the air pressure sensor 5 and the air cavity. This allows the detection signal of the air pressure sensor 5 to be used simultaneously by the motor controller 6 and the inflation and 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 operation of the motor. 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] Pressure relief valve 8 is connected to overpressure protection port 71, providing overfill protection during inflation and ensuring safe inflation. Air duct 9 has a first end and a second end. The first end of air duct 9 is connected to air duct connector 62, and the second end of air duct 9 is connected to detection port 72. Air duct 9 connects air flow channel 7 to air pressure sensor 5, thus reducing the installation requirements of air pressure sensor 5 and allowing it to be integrated into PCB 61 of motor controller 6, improving practicality.

[0084] In this embodiment, the air pump 200 and the inflation and deflation assembly 100 are integrated, and the user can inflate and deflate the tire according to demand. Not only can automatic inflation be achieved, but during the automatic deflation process, the user does not need to participate too much and only needs to wait for the deflation to end. The deflation operation steps are simple, which greatly improves 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0086] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0087] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0088] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0089] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A gas filling and deflation assembly, characterized in that: include: A body, an air nozzle and a valve, wherein the body has an air cavity, the body has a first port, a second port and a third port connected to the air cavity, the air nozzle is installed at the second port, the valve is installed at the third port, and the first port is suitable for being detachably connected to an air pump.

2. The inflation and deflation assembly according to claim 1, characterized in that: The body is a tubular body having a first end and a second end. The first port is opened to form the first port, the second port is opened to form the second port, and the third port is formed on a side wall of the tubular body.

3. The inflation and deflation assembly according to claim 1, characterized in that: The inflation and deflation assembly also includes an air pressure sensor and a control board. The control board includes a control chip. The air pressure sensor is connected to the air cavity. The control chip is connected to the valve and the air pressure sensor, and is used to control the opening and closing of the valve to deflate and stop deflation according to the air pressure in the air cavity detected by the air pressure sensor.

4. The inflation and deflation assembly according to claim 3, characterized in that: The control chip controls the valve to perform multiple interval deflations when the air pressure in the air cavity is greater than a preset pressure.

5. The inflation and deflation assembly according to claim 4, characterized in that: The duration of each deflation is a first preset duration, and the duration of stopping deflation between adjacent deflations is a second preset duration.

6. The inflation and deflation assembly according to claim 5, characterized in that: The inflation and deflation assembly further includes a setting unit disposed on the control panel, and the setting unit is used to set at least one of the preset pressure, the first preset time length, and the second preset time length.

7. The inflation and deflation assembly according to claim 4, characterized in that: The control chip determines the duration of each deflation and the duration of stopping deflation between adjacent deflations according to the difference between the pressure in the air cavity and the preset pressure.

8. The inflation and deflation assembly according to claim 3, characterized in that: The inflation and deflation assembly further includes a deflation mode button provided on the control panel, wherein 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 according to claim 8, characterized in that: Different preset deflation modes have different at least one of a preset pressure, the number of deflations of the valve within a preset time, the duration of each deflation, and the duration of deflation stop between adjacent deflations.

10. The inflation and deflation assembly according to claim 3, characterized in that: The inflation and deflation assembly also includes a display screen provided on the control panel, which is used to display deflation parameters, and the deflation parameters include the air pressure in the air cavity detected by the air pressure sensor, the preset pressure, the number of deflations of the valve within a preset time, the duration of each deflation, and at least one of the duration of deflation stop between adjacent deflations.

11. The inflation and deflation assembly according to claim 3, characterized in that: The valve has a wire, and a free end of the wire has a wire connector for detachably connecting to the control board.

12. The inflation and deflation assembly according to claim 11, characterized in that: The control board has a lead wire, and a free end of the lead wire has a lead wire connector for detachably connecting with the wire connector.

13. The inflation and deflation assembly according to any one of claims 1 to 12, characterized in that: The body has a connecting portion for detachably connecting to an air pump.

14. The inflation and deflation assembly according to claim 13, characterized in that: The connecting portion is a threaded joint or a quick joint.

15. An air pump device, characterized in that: include: An air pump and an air charging and discharging assembly, wherein the air pump has an exhaust port, and the air charging and discharging assembly is the air charging and discharging assembly according to any one of claims 1 to 14, and the first port of the air charging and discharging assembly is detachably connected to the exhaust port of the air pump.

16. The air pump device according to claim 15, characterized in that The inflation and deflation assembly is the inflation and deflation assembly according to claim 3, and the control panel is mounted on the air pump.

17. The air pump device according to claim 16, characterized in that 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 arranged on the PCB board, the air pressure sensor is integrated on the PCB board, and the PCB board is provided with an air pipe joint connected to the air pressure sensor and the air cavity.

18. The air pump device according to claim 17, characterized in that The air pump further comprises a pressure relief valve and an air guide pipe, wherein the air pump has an air flow channel, and the air flow channel has an overpressure protection port, a detection port and the 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 joint, and the second end of the air guide tube is connected to the detection air port.

Images