Method of inflating an inflatable body

Abstract

The present invention provides a method for inflating an inflatable body, which comprises: providing an inflatable body, a shell, a first one-way valve, a main air pump and a valve control assembly, wherein the inflatable body comprises an outer surface defining an internal cavity, the shell has a first vent, the first vent is in fluid communication with the internal cavity, the first one-way valve is suitable for opening or closing the first vent, and the valve control assembly is suitable for selectively opening or closing the first one-way valve; providing an air pressure control assembly, the air pressure control assembly is suitable for detecting the air pressure in the internal cavity; and providing a control device, the control device is electrically connected to the main air pump, the valve control assembly and the air pressure control assembly. The method of the present invention can automatically detect the air pressure inside the inflatable body, thereby avoiding over-inflation that damages the inflatable body, or under-inflation that affects the comfort of the inflatable body.

Description

Technical Field

[0001] The present invention relates to an inflation method, and in particular to a method for inflating an inflation body. Background Art

[0002] Common inflatables on the market, such as inflatable beds, inflatable mattresses, inflatable boats and inflatable toys, are favored by consumers because of their advantages such as light weight, foldability, easy portability and good comfort. The air pump is an essential component of the inflatable, which is used to inflate or deflate the inflatable. When inflating the inflatable, whether it can be inflated to the appropriate air pressure value will have a direct impact on improving user experience and extending the life of the inflatable product. Taking the inflatable mattress as an example, insufficient inflation of the inflatable mattress will make the inflatable mattress soft and have poor support effect. However, over-inflation of the inflatable mattress will cause the inflatable mattress to expand and deform and be easy to break. For existing inflatables, in the absence of a pressure gauge, controlling the appropriate degree of inflation can only be achieved by detecting the internal air pressure of the inflatable product while inflating and pressing. However, this method is neither convenient nor accurate. Therefore, there is an urgent need in the art to provide a solution for automatically detecting the internal air pressure of the inflatable. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides a method for inflating an inflatable body, which can automatically detect the air pressure in the inflatable body.

[0004] An embodiment of the present invention provides a method for inflating an inflatable body, which comprises: providing an inflatable body, a shell, a first one-way valve, a main air pump and a valve control assembly, wherein the inflatable body comprises an outer surface defining an internal cavity, the shell has a first vent, the first vent is fluidically connected to the internal cavity, the first one-way valve is suitable for opening or closing the first vent, the main air pump has a main air pump inlet and a main air pump outlet, the main air pump inlet is fluidically connected to the external side of the inflatable body, the main air pump outlet is fluidically connected to the internal cavity via the first vent, the valve control assembly is suitable for selectively opening or closing the first one-way valve, when the first one-way valve is in a closed position, the valve control assembly sends a closed position signal, and when the first one-way valve is in a closed position, the valve control assembly sends a closed position signal. When a one-way valve is in an open position, the valve control component sends an open position signal; an air pressure control component is provided, which is suitable for detecting the air pressure in the internal cavity and generating a first air pressure signal when the air pressure reaches a first threshold pressure, and generating a second air pressure signal when the air pressure reaches a second threshold pressure; a control device is provided, which is electrically connected to the main air pump, the valve control component and the air pressure control component; and when the air pressure detected by the air pressure control component is lower than the first threshold pressure, the control device sends a running signal to the main air pump to command the main air pump to start running, and when the air pressure detected by the air pressure control component reaches the first threshold pressure, the control device sends a stop signal to the main air pump to command the main air pump to stop running.

[0005] In some embodiments of the present invention, the method also includes providing an air supply pump, which is electrically connected to the control device and has an air supply pump inlet and an air supply pump outlet, the air supply pump inlet is connected to the external fluid of the inflation body, and the air supply pump outlet is connected to the internal chamber fluid through the air supply port provided in the shell.

[0006] In some embodiments of the present invention, after the control device has sent a stop signal to the main air pump and the air pressure detected by the air pressure control component reaches the second threshold pressure, the control device sends an air pump operation signal to the supplementary air pump to command the supplementary air pump to start operation; when the air pressure detected by the air pressure control component reaches the first threshold pressure, the control device sends an air pump stop signal to the supplementary air pump to command the supplementary air pump to stop operation.

[0007] In some embodiments of the present invention, a closed position signal generating device in the valve control assembly is activated to generate the closed position signal, and an open position signal generating device in the valve control assembly is activated to generate the open position signal.

[0008] In some embodiments of the invention, the method further comprises providing a start-up device activated by a user, the start-up device being electrically connected to the control device.

[0009] In some embodiments of the present invention, when the activation device is activated, the control device sends an opening signal to the valve control assembly to open the first one-way valve.

[0010] In some embodiments of the present invention, when the starting device is activated, the control device sends an operation signal to the main air pump to start the operation.

[0011] In some embodiments of the invention, the method further comprises providing a battery electrically connected to the control device.

[0012] In some embodiments of the invention, the battery is a rechargeable battery.

[0013] In some embodiments of the present invention, a face cover is provided and connected to the shell, wherein the face cover includes a charging port and / or a power transmission port, wherein the charging port is suitable for providing power to the rechargeable battery, and / or the power transmission port is suitable for providing power to an external device.

[0014] In some embodiments of the present invention, the method further comprises providing a battery display device, and using the battery display device to display the power status of the rechargeable battery.

[0015] In some embodiments of the present invention, the method further includes providing a battery display control switch, which sends a signal to the battery display device through the control device to command the battery display device to display the battery power status, or sends a signal to the battery display device through the control device to command the battery display device not to operate.

[0016] In some embodiments of the present invention, the method further comprises providing a regulating mechanism to the air pressure control assembly, and regulating the first threshold air pressure and / or the second threshold air pressure by operating the regulating mechanism.

[0017] In some embodiments of the present invention, the method also includes providing a base disposed on the outer surface, and removably fixing one or more of the shell, the first one-way valve, the main air pump, the valve control assembly, the air supplement pump and the air pressure control assembly to the inflatable body through the base, wherein the base is at least partially located in the internal cavity.

[0018] In some embodiments of the present invention, the valve control assembly includes: a motor electrically connected to the control device and a transmission mechanism connected to the motor, wherein the motor is suitable for driving the transmission mechanism, the transmission mechanism is suitable for driving the first one-way valve to move axially along the first air vent to open or close the first air vent, and the transmission mechanism is suitable for activating the closed position signal generating device to generate the closed position signal and is suitable for activating the open position signal generating device to generate the open position signal.

[0019] An embodiment of the present invention also provides a method for inflating an inflatable gas, which comprises: providing an inflatable gas, a first one-way valve, a main air pump and a valve control assembly, wherein the inflatable gas comprises an outer surface defining an internal cavity, the main air pump has a main air pump air inlet and a main air pump air outlet, the valve control assembly is suitable for selectively opening or closing the first one-way valve, when the first one-way valve is in a closed position, the valve control assembly sends a closed position signal, and when the first one-way valve is in an open position, the valve control assembly sends an open position signal; providing an air pressure control assembly, an air supplement pump and a control device, the control device being connected to the main air pump, the The valve control component, the air pressure control component and the air supplement pump are electrically connected, wherein the air pressure control component is suitable for detecting the air pressure in the internal cavity and generating a first air pressure signal when the air pressure reaches a first threshold pressure, and generating a second air pressure signal when the air pressure reaches a second threshold pressure; and when the air pressure detected by the air pressure control component is lower than the first threshold pressure, the control device sends a start signal to the main air pump to command the main air pump to start running, and when the air pressure detected by the air pressure control component reaches the first threshold pressure, the control device sends a stop signal to the main air pump to command the main air pump to stop running.

[0020] In some embodiments of the present invention, after the control device has sent a stop signal to the main air pump and the air pressure detected by the air pressure control component reaches the second threshold pressure, the control device sends an air pump operation signal to start the operation of the air supplementary pump; when the air pressure detected by the air pressure control component reaches the first threshold pressure, the control device sends an air supplementary pump stop signal to the air supplementary pump.

[0021] In some embodiments of the present invention, the method further comprises providing a starting device activated by a user, wherein the starting device is electrically connected to a control device, and when the starting device is activated, the control device sends an opening signal to the valve control assembly to open the first one-way valve.

[0022] In some embodiments of the present invention, a start-up device activated by a user is provided, and the control device sends an operation signal to the main air pump to start the operation.

[0023] An embodiment of the present invention further provides a method for inflating an inflatable gas, which comprises: providing an inflatable gas, a first one-way valve, a main air pump, a battery and a valve control assembly, wherein the inflatable gas comprises an outer surface defining an internal cavity, the main air pump has a main air pump air inlet and a main air pump air outlet, the valve control assembly is suitable for selectively opening or closing the first one-way valve, when the first one-way valve is in a closed position, the valve control assembly sends a closed position signal, and when the first one-way valve is in an open position, the valve control assembly sends an open position signal; providing an air pressure control assembly, an air supplement pump and a control device, the control device being connected to the main air pump, the battery and the valve control assembly The pool, the valve control component, the air pressure control component and the air supplement pump are electrically connected, wherein the air pressure control component is suitable for detecting the air pressure in the internal cavity and generating a first air pressure signal when the air pressure reaches a first threshold pressure, and generating a second air pressure signal when the air pressure reaches a second threshold pressure; and when the air pressure detected by the air pressure control component is lower than the first threshold pressure, the control device sends a start signal to the main air pump to command the main air pump to start running, and when the air pressure detected by the air pressure control component reaches the first threshold pressure, the control device sends a stop signal to the main air pump to command the main air pump to stop running.

[0024] In some embodiments of the present invention, the method further comprises providing a battery display device, and using the battery display device to display the power status of the battery.

[0025] In some embodiments of the present invention, the method further includes providing a battery display control switch, which sends a signal to the battery display device through the control device to command the battery display device to display the battery power status, or sends a signal to the battery display device through the control device to command the battery display device not to operate.

[0026] On the other hand, an embodiment of the present invention provides an air pump system, which includes: a shell having a first air vent, the first air vent being suitable for communicating with the internal cavity fluid of the inflatable gas; a first one-way valve being suitable for opening or closing the first air vent; a main air pump having a main air pump inlet and a main air pump outlet, the main air pump inlet being suitable for communicating with the external fluid of the inflatable gas, and the main air pump outlet being suitable for communicating with the internal cavity fluid of the inflatable gas via the first vent; a valve control component being suitable for selectively opening or closing the first one-way valve, the valve control component sending a closed position signal when the first one-way valve is in a closed position, and the valve control component sending a closed position signal when the first one-way valve is in a closed position When in the open position, the valve control assembly sends an open position signal; the air pressure control assembly is suitable for detecting the air pressure in the internal cavity and generating a first air pressure signal when the air pressure reaches a first threshold pressure, and generating a second air pressure signal when the air pressure reaches a second threshold pressure; a control device is electrically connected to the main air pump, the valve control assembly and the air pressure control assembly, and the control device is configured to: when the air pressure detected by the air pressure control assembly is lower than the first threshold pressure, send a start signal to the main air pump to start operation, and when the air pressure detected by the air pressure control assembly reaches the first threshold pressure, send a stop signal to the main air pump to stop operation.

[0027] In some embodiments of the present invention, the air pump system also includes an air supply pump, which is electrically connected to the control device and has an air supply pump inlet and an air supply pump outlet, the air supply pump inlet is connected to the external fluid of the inflation body, and the air supply pump outlet is connected to the internal cavity fluid through the air supply port provided on the shell.

[0028] In some embodiments of the present invention, the air pump system also includes: a base, which is suitable for being arranged on the outer surface of the inflatable body and suitable for being at least partially located in the internal cavity, and the base is suitable for detachably fixing one or more of the shell, the first one-way valve, the main air pump, the valve control assembly, the air supplement pump and the air pressure control assembly to the inflatable body; wherein, the base has a base vent, and the base vent is suitable for being respectively connected to the internal cavity of the inflatable body and the first vent fluid.

[0029] In some embodiments of the present invention, after the control device has sent a stop signal to the main air pump to stop operation and the air pressure detected by the air pressure control component reaches a second threshold pressure, the control device sends an air pump operation signal to start operation to the air supplementary pump; when the air pressure detected by the air pressure control component reaches the first threshold pressure, the control device sends an air supplementary pump stop signal to stop operation to the air supplementary pump.

[0030] In some embodiments of the present invention, the air pump system further comprises a starting device activated by a user, wherein the starting device is electrically connected to the control device.

[0031] In some embodiments of the present invention, the shell is connected to a cover, and the starting device is arranged on the cover.

[0032] In some embodiments of the present invention, when the starting device is activated, the control device sends an opening signal to the valve control assembly to open the first one-way valve.

[0033] In some embodiments of the present invention, when the starting device is activated, the control device sends an operation signal to the main air pump to start the operation.

[0034] In some embodiments of the present invention, the air pump system further comprises a battery electrically connected to the control device.

[0035] In some embodiments of the present invention, the housing is connected to a cover, and the cover includes a charging port for providing electrical energy to the battery and / or a power transmission port for supplying power to an external device.

[0036] In some embodiments of the present invention, the cover is provided with a battery display device, and the battery display device displays the power status of the battery.

[0037] In some embodiments of the present invention, the cover is provided with a battery display control switch, and the battery display control switch selectively turns on or off the battery display device.

[0038] In some embodiments of the present invention, the valve control assembly includes a closed position signal generating device and an open position signal generating device, activating the closed position signal generating device generates the closed position signal, and activating the open position signal generating device generates the open position signal.

[0039] In some embodiments of the present invention, the valve control assembly comprises a movable first arm, the first arm being used to activate the closed position signal generating device to generate the closed position signal.

[0040] In some embodiments of the present invention, the valve control assembly comprises a movable second arm for activating the open position signal generating device to generate the open position signal.

[0041] In some embodiments of the present invention, the air pressure control component includes: a movable membrane component, which is suitable for generating displacement under the action of the air pressure in the internal cavity and the external air pressure; and an air pressure signal generating device, which is suitable for being activated by the movable membrane component to generate and send a first air pressure signal or a second air pressure signal.

[0042] In some embodiments of the present invention, the air pressure control component includes a movable membrane component and an air pressure signal generating device, wherein the movable membrane component is suitable for generating displacement under the action of the air pressure in the internal cavity and the external air pressure, and the air pressure signal generating device is electrically connected to the control device, and when the air pressure in the internal cavity reaches the first threshold air pressure, the movable membrane component is suitable for activating the air pressure signal generating device to generate a first air pressure signal, and when the air pressure in the internal cavity reaches the second threshold air pressure, the movable membrane component is suitable for activating the air pressure signal generating device to generate a second air pressure signal.

[0043] In some embodiments of the present invention, the air pump system also includes a face cover and a locking structure, and the locking structure can detachably fix one or more of the shell, the face cover, the first one-way valve, the main air pump, the valve control assembly, the air pressure control assembly, the control device and the air replenishment pump in the base.

[0044] In some embodiments of the present invention, the valve control assembly includes: a motor electrically connected to the control device and a transmission mechanism connected to the motor, wherein the motor is suitable for driving the transmission mechanism, the transmission mechanism is suitable for driving the first one-way valve to move axially along the first air vent to open or close the first air vent, and the transmission mechanism is suitable for activating the closed position signal generating device to generate the closed position signal, and is suitable for activating the open position signal generating device to generate the open position signal.

[0045] In some embodiments of the present invention, the motor has a motor shaft; the transmission mechanism includes at least one gear component and a rotatable cam, and the rotatable cam is suitable for rotating around a cam rotation axis; the rotatable cam has a cam surface and a gear portion, the motor shaft is connected to the at least one gear component to rotate the at least one gear component, and the at least one gear component is meshed with the gear portion to rotate the rotatable cam, thereby contacting the rotatable cam and the valve stem of the first one-way valve to make the valve plate of the first one-way valve move axially along the first air vent to open or close the first air vent.

[0046] The method and air pump system of the present invention can automatically detect the air pressure inside the inflatable body, thereby avoiding over-inflation that damages the inflatable body, or under-inflation that affects the comfort of the inflatable body. This automatic detection method is convenient and accurate. In addition, when an air replenishment pump is provided, the air replenishment pump can automatically replenish the inflatable body in time, thereby avoiding the air pressure inside the inflatable body from decreasing and affecting the comfort of the inflatable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to facilitate the understanding of the present invention, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0048] Figure 1 and Figure 2 is a perspective view of an air pump system according to an exemplary embodiment of the present invention.

[0049] Figure 3 yes Figure 1 and Figure 2 An exploded view of the air pump system is shown showing the base separated from the air pump assembly.

[0050] Figure 4A yes Figure 3 A perspective view of the air pump assembly as seen from the rear.

[0051] Figure 4B yes Figure 3 A rear perspective view of the air pump assembly is shown, showing the first one-way valve in an exploded state.

[0052] Figure 5A yes Figure 3 An exploded view of the air pump assembly is shown, which specifically shows the battery, cover, shell, air supplementary pump, air pressure control assembly, main air pump and valve control assembly.

[0053] Figure 5B yes Figure 3 The three-dimensional view of the air pump assembly shown in FIG. 1 shows the air supplement pump disposed on the housing.

[0054] Figure 6 is along Figure 1 A cross-sectional view of the air pump system taken along line 6-6.

[0055] Figure 7 yes Figure 5A A perspective view of the face cover as seen from below.

[0056] Figure 8 yes Figure 5A A perspective view of the main air pump is shown.

[0057] Fig. 9 yes Figure 8 Exploded view of the main air pump shown.

[0058] Fig. 10A and Fig. 10B yes Figure 5A A perspective view of the valve control assembly is shown.

[0059] Fig.11 yes Fig. 10A and Fig. 10B An exploded view of the valve control assembly is shown.

[0060] Fig. 12A yes Fig. 10A and Fig. 10B A partial cross-sectional view of components of a valve control assembly is shown, particularly showing a first one-way valve in a closed position.

[0061] Fig. 12B yes Fig. 10A and Fig. 10B A partial cross-sectional view of components of a valve control assembly is shown, particularly showing a first one-way valve in an open position.

[0062] Fig.13A yes Fig. 10A and Fig. 10B A perspective view of components of a valve control assembly is shown, particularly showing a movable first arm engaged with a closed position signal generating device.

[0063] Fig. 13B yes Fig. 10A and Fig. 10B A perspective view of components of a valve control assembly is shown, particularly showing the movable second arm engaged with the open position signal generating device.

[0064] Fig.14A yes Figure 5A A perspective view of the air pressure control assembly as shown from above.

[0065] Fig. 14B yes Figure 5A Exploded view of the air pressure control assembly shown.

[0066] Fig.15A and Fig. 15B is along Fig.14A A cross-sectional view of the air pressure control assembly taken along line 15A, 15B-15A, 15B is shown, showing the flexible membrane in a relaxed position and a deployed position, respectively.

[0067] Fig.16 yes Figure 5A A three-dimensional view of the air supply pump is shown.

[0068] Fig.17 is a perspective view of an air pump system according to an exemplary embodiment of the present invention installed on an inflatable body, wherein the interior cavity of the inflatable body is also shown. DETAILED DESCRIPTION

[0069] This document will describe in detail an exemplary embodiment of the present invention in conjunction with the accompanying drawings. It is to be understood that the description of the exemplary embodiment herein should be considered as an example of an air pump system and a method of inflating an inflatable body, and is not intended to limit the present invention to the exemplary embodiment.

[0070] The present invention discloses an air pump system 10, referring to Figures 1 to 6 and Fig.17 In some embodiments, the air pump system 10 includes an air pump assembly 14 that is removably connected to an inflatable body 18. The air pump assembly 14 includes a face cover 22 that is removably connected to a housing 26. The housing 26 defines a housing cavity 30 within which certain components of the air pump system 10 are disposed, as will be described in detail below.

[0071] The inflatable body 18 may be an airbed or air mattress having an outer surface 34 defining an inner cavity 38. As is well known to those skilled in the art, the outer surface 34 may confine, contain, hermetically seal, and / or substantially hermetically seal a pressurized fluid within the inner cavity 38. The pressurized fluid may be air, but other fluids (e.g., nitrogen) are also within the scope of the present invention.

[0072] The base 42 defines a base cavity 46, which is adapted to be connected to a portion of the outer surface 34 of the inflatable body 18 and at least partially located within the internal cavity 38. The base cavity 46 is adapted to be in fluid communication with the internal cavity 38 of the inflatable body 18. In some embodiments, the air pump assembly 14 is received in the base cavity 46 and is removably fixed to the base 42 by a locking mechanism 90, which will be described in detail below. The surface of the base 42 has a base vent 50, which allows the base cavity 46 and the internal cavity 38 to be in fluid communication.

[0073] The housing 26 has a first vent 54, a pressure vent 62, and a make-up vent 66, each of which facilitates fluid communication between the housing cavity 30 and the base cavity 46, thereby facilitating fluid communication between the housing cavity 30 and the interior cavity 38 via the base vent 50. A first check valve 58 is at least partially disposed within the first vent 54 and is capable of selectively preventing or substantially preventing fluid flow through the first vent 54.

[0074] The housing 26 also has a housing sealing flange 70 that can engage or at least partially reside within a base recess 74 formed in the base 42 when the base 42 is removably coupled to the air pump assembly 14. Figure 6 A gasket 78 may be at least partially located between the base groove 74 and the housing sealing flange 70 to form a complete fluid seal between the housing 26 and the base 42 .

[0075] The air pump assembly 14 is detachably fixed to the base 42 by a locking mechanism 90, such as Figure 6As shown. Specifically, the sliding lock 94 has a locking tongue 98. The sliding lock 94 is at least partially disposed adjacent to or around a sliding lock guide 102, which is formed in or on the face cover 22. A sliding lock spring 106 is sleeved on the outside of the sliding lock guide 102, and can apply a biasing force outward from the face cover 22 to the sliding lock 94. A baffle 120 can be located on the sliding lock guide 102 to limit the movement of the sliding lock 94 when the user operates the sliding lock 94. The base 42 has a locking tongue groove 124, which accommodates at least a portion of the locking tongue 98, thereby fixing the air pump assembly 14 to the base 42. This arrangement is shown in Figure 6 .

[0076] In exemplary operation, the locking tongue 98 is at least partially located in the locking tongue groove 124 to removably secure the air pump assembly 14 to the base 42. Then, the user or other external force operates the sliding lock 94, causing the sliding lock 94 to move toward the cover along the sliding lock guide 102 and against the biasing force of the sliding lock spring 106. The movement of the sliding lock 94 causes the locking tongue 98 to be located outside the locking tongue groove 124, so that the air valve assembly 14 can be removed from the base cavity 46.

[0077] Further, the air pump assembly 14 can be inserted into the base cavity 46. In some embodiments, the angle of the locking tongue 98 and / or the base 42 facilitates the insertion of the air pump assembly 14 into the base cavity 46, and at the same time allows the sliding lock 94 to move as described above. In some embodiments, user operation or other external force is required to insert the air pump assembly 14 into the base cavity 46. Regardless of which method is used to insert the air pump assembly into the base cavity 46, once the air pump assembly 14 is inserted into the base cavity 46, the sliding lock 94 moves outward from the cover 22 so that the locking tongue 98 is at least partially located in the locking tongue groove 124 to removably fix the air pump assembly to the base 42.

[0078] Figure 6 Also shown are a base fixing flange 128 and a base fixing portion 132, the base fixing flange 128 being formed on the base 42, the base fixing portion 132 being made of a flexible thermoplastic material and being connected to the base fixing flange 128 by overmolding, and the base fixing portion 132 being adapted to be connected to the outer surface 34 of the inflatable body 18, thereby fixing the base 42 to the outer surface 34 of the inflatable body 18. The base fixing flange 128 and the base fixing portion 132 may be connected by adhesive, welding, or other mechanical or chemical connection techniques known to those skilled in the art.

[0079] like Figures 1 to 7 As shown, the cover 22 and the housing 26 are connected by a cover connection mechanism 136 (such as Figure 7As shown in the figure, the cover 22 and the housing 26 can be connected by any adhesive, mechanical or chemical connection technology, which falls within the scope of the present invention. The cover 22 may include a charging port 140 and a battery display device 148, the charging port 140 is used to charge the battery 144, and the battery display device 148 is used to display the power of the battery 144. An external power source, such as a grid power source, can provide electrical energy through the charging port 140 to charge the battery 144 and / or operate any component of the air pump system 10. The battery charging display device 148 may include one or more lights, which may emit light, change color, change brightness or change the operating mode (such as a flashing mode) to display the power of the battery 144. Specifically, the battery display device 148 may include three lights: all three lights are on to indicate that the battery 144 is full, only two lights are on to indicate that the battery 144 is partially or medium, and only one light is on (or only one light flashes) to indicate that the battery 144 is low. The battery display device 148 may also communicate the current charge of the battery 144 via a screen, audio signal, or other means. The battery display device control 156 selectively commands the battery display device 148 to evaluate and display the current charge of the battery 144, or selectively commands the battery display device 148 to stop operating.

[0080] The cover 22 is also provided with a charging indicator 152, which is used to display whether the battery 144 is being charged through the charging port 140. The charging indicator 152 can convey that the battery 144 is being charged through a light, a screen, an audio signal or other means.

[0081] The cover 22 may also be provided with a power transmission port 160. The power transmission port 160 may be a USB port that enables charging of an external device, which may be a mobile device, and the power energy for charging the external device comes from the battery 144 and / or is provided to the air pump system 10 via the charging port 140. A waterproof plug 164 may be provided on or adjacent to the charging port 140 and / or the power transmission port 160 to selectively prevent water or other substances from entering the charging port 140 and / or the power transmission port 160.

[0082] The cover 22 may also include a starter 168, which may be a button. The starter 168 is used to command the components of the air pump system 10 to operate. A control device 174 is also provided on the cover 22 and is electrically connected to other components of the air pump system 10, which will be described in detail below. Finally, the cover 22 also has a cover vent 176, which allows fluid communication between the outside of the air pump assembly 14 and the housing cavity 30.

[0083] Figure 8 and Fig. 9A perspective view and an exploded view of the main air pump 190 are shown respectively. The main air pump 190 includes a main air pump inlet housing 194 having a main air pump inlet 198, and a main air pump outlet housing 202 having a main air pump outlet 206. The main air pump inlet 198 can be in fluid communication with the exterior of the inflatable body 18 via the face cover vent 176.

[0084] The main air pump 190 may further include a main air pump motor 210 and a main air pump motor shaft 214. The main air pump motor 210 may be an electric motor. The main air pump motor 210 drives the main air pump motor shaft 214 to rotate around the main air pump motor shaft axis 218. The main air pump motor shaft 214 is connected to the main air pump fan blade 222, so that the rotation of the main air pump motor 210 drives the main air pump motor shaft 214 and the main air pump fan blade 222 to rotate.

[0085] like FIG. 10A to FIG. 13B 2, the valve control assembly 230 includes a valve control assembly housing 234 having a valve control assembly air inlet 238 and a valve control assembly air outlet 242. In some embodiments, the valve control assembly air inlet 238 is connected and / or fluidly connected to the main air pump air outlet 206. The valve control assembly 230 may also include a valve control motor 246 and a valve control shaft 250 or motor shaft 250, the valve control motor 246 may be an electric motor, and the valve control motor 246 drives the valve control shaft 250 to rotate around the valve control shaft axis 254.

[0086] The transmission mechanism 258 transmits the rotational force of the valve control motor 246 to the first one-way valve 58. The transmission mechanism 258 may be at least partially located within the valve control assembly housing 234. The transmission mechanism 258 may include a transmission system 262 and a rotatable cam 274. The transmission system 262 has at least one gear member 266 and a worm gear 270, and the rotatable cam 274 includes a camshaft 278, a gear portion 286, and a cam surface 290, and the camshaft 278 is substantially arranged along the camshaft rotation axis 282. However, it is understood that other mechanical systems and other arrangements suitable for transmitting the mechanical energy of the valve control motor 246 to the first one-way valve 58 also fall within the scope of the present invention.

[0087] When the valve control motor 246 is in operation, its rotation is transmitted to the gear portion 286 of the rotatable cam 274 via the transmission system 262. The meshing of the worm gear 270 with the gear portion 286 causes the rotatable cam 274 to rotate about the camshaft rotation axis 282. The cam surface 290 is at least a portion of the rotatable cam 274, so that in the closed position (such as Fig. 12A and Fig.13A ) and the open position (as Fig. 12B and Fig. 13B274). When the cam surface 290 rotates from the closed position to the open position, the cam surface 290 acts on the locking member 294 of the first one-way valve 58 and causes the locking member 294 to move away from the first vent 54. When the cam surface 290 rotates from the open position to the closed position, the locking member 294 moves toward the first vent 54.

[0088] The locking member 294 is connected to one end of the valve stem 300 of the first one-way valve 58. The valve plate 304 is connected to the other end of the valve stem 300. When the cam surface 290 acts on the locking member 294 and causes the locking member 294 to move, the valve stem 300 drives the valve plate 304 to move along the axial direction of the first air vent 54 as the locking member 294 moves, thereby opening or closing the first air vent 54. The housing 26 may include a support member 312 located at the first air vent 54, and the support valve stem 300 is suitable for sliding in a hole provided in the support member 312. When the rotatable cam 274 is in the closed position, the first one-way valve 58 is also in the closed position (such as Fig. 12A When the rotatable cam 274 is in the open position, the first one-way valve 58 is also in the open position (as shown in FIG. Fig. 12B shown).

[0089] Furthermore, the housing 26 may also have a sealing surface 316. When the rotatable cam 274 and the first one-way valve 58 are in the closed position, the sealing surface 316 forms a fluid seal with the valve plate 304. Therefore, when the rotatable cam 274 and the first one-way valve 58 are in the closed position, the first one-way valve 58 prevents the fluid from flowing through the first vent 54. When the rotatable cam 274 and the first one-way valve 58 are in the open position, no fluid seal is formed between the valve plate 304 and the sealing surface 316, thereby allowing the fluid to flow through the first vent 54. The valve stem spring 308 is sleeved on the outer side of the valve stem 300 and is located between the valve plate 304 and the locking member 294. The elastic force of the valve stem spring 308 causes the first one-way valve 58 to have a tendency to move toward the closed position.

[0090] The valve control assembly 230 may include a closed position signal generating device 320, an open position signal generating device 324, a movable first arm 328, and a movable second arm 332. The movable first arm 328 and the movable second arm 332 are both located on the rotatable cam 274, more specifically, on the camshaft 278. When the rotatable cam 274 rotates about the camshaft rotation axis 282, the movable first arm 328 and the movable second arm 332 also rotate about the camshaft rotation axis 282.

[0091] When the first check valve 58 is in the closed position (eg Fig. 12A As shown), the movable first arm 328 activates the closed position signal generating device 320, such as Fig.13A When the first check valve 58 is in the open position (as shown Fig. 12B As shown), the movable second arm 332 activates the open position signal generating device 324, as shown Fig. 13B shown.

[0092] FIG. 14A to FIG. 15B The air pressure control assembly 340 is shown. The air pressure control assembly 340 includes an air pressure control first housing 342, an air pressure control second housing 344, and a movable membrane 348. The movable membrane 348 may be at least partially located within the air pressure control first housing 342 and the air pressure control second housing 344. In some embodiments, in the air pressure control assembly 340, when the air pressure control first housing 342 and the air pressure control second housing 344 are assembled together, a portion of the movable membrane 348 (which may be the periphery of the movable membrane 348) is located, or substantially located, between the air pressure control first housing 342 and the air pressure control second housing 344. This arrangement is at least shown in FIG. Fig.15A and Fig. 15B middle. Fig.15A and Fig. 15B The movable membrane 348 is shown in a relaxed position and a deployed position, respectively.

[0093] The air pressure control second housing 344 has an air pressure control assembly vent 352. The air pressure control assembly vent 352 is in fluid communication with the pressure measuring vent 62 formed in the housing 26. The air pressure control assembly seal 356 is located between the housing 26 and the air pressure control second housing 344 to prevent fluid from passing between the housing 26 and the air pressure control second housing 344.

[0094] The first air pressure chamber 360 is located in an area substantially defined by the movable membrane 348 and the air pressure control second housing 344, and the second air pressure chamber 364 is located in an area substantially defined by the movable membrane 348 and the air pressure control first housing 342. The second air pressure chamber 364 can be in fluid communication with the housing cavity 30. The first air pressure chamber 360 and the second air pressure chamber 364 can be located on substantially opposite sides of the movable membrane 348. The first air pressure chamber 360 is in fluid communication with the internal cavity 38 via the air pressure control assembly vent 352 and the pressure measuring vent 62, and the second air pressure chamber 364 is in fluid communication with the exterior of the inflatable body 18.

[0095] The air pressure control assembly 340 also includes a knob 370, a housing thread 378, an adjusting rod spring 386 and a moving member 390. The knob 370 has a knob thread 374, and the housing thread 378 is located at a part of the air pressure control first housing 342. The moving member 390 has a moving member first face 394, an adjusting rod 382 and a moving member second face 398, and the moving member first face 394 is connected or contacts the movable film 348. When the air pressure in the internal cavity 38 rises, the air pressure in the first air pressure chamber 360 rises accordingly and acts on the movable film 348, so as to push the movable film 348 towards the air pressure control first housing 342. The movable film 348 pushes the moving member 390 to move together, and when the air pressure in the internal cavity 38 decreases, the air pressure in the first air pressure chamber 360 decreases simultaneously, and the moving member 390 pushes the movable film 348 to move together towards the direction of the air pressure control first housing 342 under the action of the adjusting rod spring 386. Fig.15A and Fig. 15B The movable membrane is shown in a relaxed position and in a deployed position, respectively.

[0096] The knob 370 can rotate relative to the air pressure control first housing 342. When the knob 370 is rotated, the knob 370 can move longitudinally along the knob axis 400 through the matching housing thread 378 and the knob thread 374. The adjustment rod spring 386 can be sleeved on a portion of the adjustment rod 382, ​​and because the knob 370 is located at different positions, the adjustment rod spring 386 can apply different degrees of force to the moving member 390. Accordingly, the knob 370 is located at different positions along the knob axis 400 so that the movable membrane 348 and the moving member 390 are subjected to different degrees of mechanical resistance.

[0097] When the moving member 390 reaches a specific position along the knob axis 400, the second surface 398 of the moving member can activate the air pressure signal generating device 402. With this system, when the internal cavity 38 is inflated, the air pressure of the internal cavity 38 causes the movable membrane 348 and the moving member 390 to move along the knob axis 400. If the moving member 390 moves to the second surface 398 of the moving member enough to activate the air pressure signal generating device 402, the air pressure signal generating device 402 generates and sends a first air pressure signal; if the moving member 390 moves to the second surface 398 of the moving member to activate the air pressure signal generating device 402, a second air pressure signal is generated. In other words, the rotation of the knob 370 can change the air pressure of the internal cavity 38 required to activate the air pressure signal generating device 402.

[0098] Fig.16A supplementary air pump 410 is shown. The supplementary air pump 410 includes a supplementary air pump inlet 414 and a supplementary air pump outlet 418. The supplementary air pump inlet 414 is adapted to be in fluid communication with the housing cavity 30, and the supplementary air pump outlet 418 is adapted to be in fluid communication with the internal cavity 38 via an outlet tube 422, a second one-way valve 426, and a supplementary air port 66. The second one-way valve 426 may be located at or near the supplementary air port 66. In some embodiments, the supplementary air pump 410 may be a silent diaphragm pump.

[0099] The following describes an exemplary operation of the air pump system 10. As described above, the control device 174 can be electrically connected to the components of the air pump system 10, including but not limited to the charging port 140, the battery 144, the battery display device 148, the charging display 152, the battery display device control 156, the power transmission port 160, the starting device 168, the main air pump motor 210, the valve control motor 246, the closed position signal generating device 320, the open position signal generating device 324, the air pressure signal generating device 402 and the supplementary air pump 410. It can be understood that the control device 174 can be a control circuit, which can include a processor, a memory and a power supply control circuit, and the control device 174 can communicate with the above-mentioned components of the air pump system 10 through a communication bus, wireless communication or wired communication.

[0100] First, when the initial air pressure in the inflatable body 18 is lower than the first threshold air pressure, for example, when the inflatable body 18 is in an uninflated state, or when the user partially inflates the inflatable body 18 using a manual pump or an electric pump but does not reach the first threshold air pressure, the user can activate the activation device 168 located on the face cover 22. This activation is transmitted to the control device 174, and the control device 174 generates an opening signal and sends the opening signal to the valve control motor 246 to open the first one-way valve 58 and command the main air pump motor 210 to operate. When the first one-way valve 58 is opened, the main air pump motor 210 operates, and the air pressure difference generated by the rotating main air pump impeller 222 sucks air from the outside of the air pump system 10 and passes through the face cover vent 176, the main air pump air inlet 198, the main air pump air outlet 206, the valve control assembly air inlet 238, the valve control assembly air outlet 242, the first vent 54, and finally enters the internal cavity 38 of the inflatable body 18. When the first check valve 58 is opened, the open position signal generating device 324 of the valve control assembly 230 generates an open position signal and sends the open position signal to the control device 174. Then, the control device 174 generates a stop signal and sends the stop signal to the valve control motor 246 to stop the valve control motor 246.

[0101] The above operation increases the air pressure and / or air volume in the inflatable body 18 until the first threshold air pressure is reached. For example, the first threshold air pressure can be 240 mm H2O, or close to 240 mm H2O. Exemplarily, the first threshold air pressure and the second threshold air pressure can be changed by adjusting the knob 370. When the air pressure in the first air pressure chamber 360 and the internal cavity 38 of the inflatable body 18 reaches the first threshold air pressure, the second surface 398 of the moving part activates the air pressure signal generating device 402, and the air pressure signal generating device 402 generates a first air pressure signal and sends the first air pressure signal to the control device 174.

[0102] After receiving the first air pressure signal, the control device 174 generates a main air pump motor stop signal, and sends the stop signal to the main air pump motor 210 to stop the main air pump motor 210, and generates a first one-way valve closing signal, and sends the closing signal to the valve control motor 246 to close the first one-way valve 58. Specifically, the control device 174 generates the first one-way valve closing signal, and sends the closing signal to the valve control motor 246 to operate the valve control motor 246 to close the first one-way valve 58, and the valve control motor 246 keeps operating until the closing position signal generated by the closing position signal generating device 320 is sent to the control device 174, and the control device 174 generates a valve control motor stop signal and sends the stop signal to the valve control motor 246 to stop the valve control motor 246.

[0103] Subsequently, if the air pressure control assembly 340 detects that the air pressure in the internal cavity 38 drops to a second threshold air pressure, the air pressure control signal device 402 generates a second air pressure signal and sends the second air pressure signal to the control device 174. For example, the second threshold air pressure may be 200 mm H2O, or close to 200 mm H2O. At this time, the control device 174 generates an air supply pump operation signal and sends the air supply pump operation signal to the air supply pump 410. Thereafter, the air supply pump 410 operates to increase the air pressure in the internal cavity 38 until the first threshold air pressure is reached again. The air pressure signal generating device 402 generates a first air pressure signal and sends the first air pressure signal to the control device 174. Then, the control device 174 generates an air supply pump stop signal and sends the air supply pump stop signal to the air supply pump 410. When the air pressure control assembly 340 detects that the air pressure in the internal cavity 38 drops to the second threshold air pressure again, the above operation is repeated to use the air supply pump for air supply.

[0104] It is understood that the control device 174 can be located in any component of the air pump system 10. It is also understood that the control device 174 can represent a set of discrete electronic communication components located in or on different components within the air pump system 10, which can form a control circuit.

[0105] In some embodiments, the time at which the valve control motor 246 is required to open and / or close the first one-way valve 58 may be preset. Thus, after the valve control motor 246 has been operating for a preset period of time, the control device 174 may command the valve control motor 246 to stop operating. Such an embodiment may not include the signal generating device 320, 324 of the valve control assembly 230.

[0106] The specific configuration and communication between the control device 174, the valve control component 230, the main air pump 190, the supplementary air pump 410 and the air pressure control component 340 and these five components are as mentioned above and will not be repeated here.

[0107] In summary, the condition for the operation of the supplementary air pump 410 is that the control device 174 has sent a stop signal to the main air pump 190 to stop the operation, and the air pressure detected by the air pressure control component 340 reaches the second threshold pressure.

[0108] In the air pump system disclosed herein, electrical components include, but are not limited to, the main air pump 190, the battery 144, the valve control assembly 230, the air pressure control assembly 340, the air supplement pump 410, the control device 174, and the cover 22, and these electrical components are isolated from the inflatable fluid flow. Since fluids (such as air, water, other gases and liquids) can potentially damage these electrical components, the air pump system disclosed in the present invention can effectively avoid such damage, thereby extending the life of the product. Further, the waterproof plug 164 can prevent fluid from entering the air pump system 10.

[0109] Any of the components described above may include flexible thermoplastic materials or hard materials, and further, these components may be connected by at least one of high frequency welding, adhesion, and other mechanical connection methods known to those skilled in the art. In addition, it is understood that all components and features described herein may be made of a variety of materials, including but not limited to polymers, plastics, rubbers, foams, vinyl resins, PVC (polyvinyl chloride), coated fabrics, metals, metal alloys, or other suitable materials known to those skilled in the art.

[0110] Although some exemplary embodiments are described herein by way of example, various deformations and modifications may be made to these embodiments without departing from the essence of the invention, and all of these deformations and modifications still fall within the concept of the invention and fall within the scope of protection defined by the claims of the invention.

[0111] The specific embodiments disclosed herein are only used to illustrate the present invention. It is obvious to those skilled in the art that various modifications can be made according to the teachings of this article, and the present invention can be implemented in various equivalent ways. Therefore, the specific embodiments disclosed above of the present invention are merely exemplary, and their scope of protection is not limited by the details of the structure or design disclosed herein, unless otherwise specified in the claims. Therefore, the specific exemplary embodiments disclosed above can be replaced, combined or modified in various ways, and all of their variations fall within the scope disclosed herein. In the absence of any elements not specifically disclosed herein or in the absence of optional components disclosed herein, the filtration device exemplarily disclosed herein can still be appropriately implemented. Similarly, unless the applicant explicitly and clearly defines otherwise, the terms in the claims have their clear and usual meanings.

[0112] In addition, the number of components in the claims includes one or at least one unless otherwise specified. If there is any inconsistency between the usage or meaning of a word or term in the present invention and that in other documents, the definition in the present invention shall prevail.

Claims

1. A method of inflating an inflatable body, comprising: An inflatable body, a housing, a first one-way valve, a main air pump and a valve control assembly are provided, wherein the inflatable body includes an outer surface defining an inner cavity, the housing has a first vent, the first vent is in fluid communication with the inner cavity, the first one-way valve is adapted to open or close the first vent, the main air pump has a main air pump inlet and a main air pump outlet, the main air pump inlet is in fluid communication with an outer portion of the inflatable body, the main air pump outlet is in fluid communication with the inner cavity via the first vent, and the valve control assembly includes a motor adapted to selectively open or close the first one-way valve; providing an air pressure control assembly adapted to detect the air pressure within the internal cavity and generate a first air pressure signal when the air pressure reaches a first threshold air pressure, and generate a second air pressure signal when the air pressure reaches a second threshold air pressure; Providing a control device, the control device being electrically connected to the main air pump, the valve control assembly and the air pressure control assembly; When the air pressure detected by the air pressure control assembly is lower than the first threshold air pressure, the control device sends an opening signal to the motor to open the first one-way valve and sends an operation signal to the main air pump to command the main air pump to start operation, and when the first one-way valve is opened, the valve control assembly sends an open position signal to the control device, and the control device then sends a stop signal to the motor to stop the motor; and When the air pressure detected by the air pressure control component reaches the first threshold air pressure, the control device sends a stop signal to the main air pump to command the main air pump to stop running and sends a closing signal to the motor to close the first one-way valve, and when the first one-way valve is closed, the valve control component sends a closed position signal to the control device, and the control device then sends a stop signal to the motor to stop running.

2. The method as claimed in claim 1 further includes providing an air supply pump, which is electrically connected to the control device and has an air supply pump inlet and an air supply pump outlet, the air supply pump inlet is connected to the external fluid of the inflation body, and the air supply pump outlet is connected to the internal cavity fluid through the air supply port provided in the shell.

3. The method of claim 2, wherein: After the control device has sent a stop signal to the main air pump and the air pressure detected by the air pressure control component reaches the second threshold pressure, the control device sends an air pump operation signal to the supplementary air pump to command the supplementary air pump to start operation; when the air pressure detected by the air pressure control component reaches the first threshold pressure, the control device sends an air pump stop signal to the supplementary air pump to command the supplementary air pump to stop operation.

4. The method of claim 1, wherein: The closed position signal generating device in the valve control assembly is activated to generate the closed position signal, and the open position signal generating device in the valve control assembly is activated to generate the open position signal.

5. The method of claim 1 further comprising providing a user activated activation device, the activation device being electrically connected to the control device.

6. The method of claim 5, wherein: When the activation device is activated, the control device sends an opening signal to the valve control assembly to open the first one-way valve.

7. The method of claim 5, wherein: When the starting device is activated, the control device sends an operation signal to the main air pump to start the operation.

8. The method of claim 1 further comprising providing a battery in electrical communication with the control device.

9. The method of claim 8, wherein: The battery is a rechargeable battery.

10. The method of claim 9, further comprising providing a face cover and connecting the face cover to the housing, the face cover comprising a charging port and / or a power transmission port, the charging port being suitable for providing electrical energy to the rechargeable battery, and / or the power transmission port being suitable for providing electrical energy to an external device.

11. The method of claim 9, further comprising providing a battery display device, using the battery display device to display the charge status of the rechargeable battery.

12. The method as claimed in claim 11 further includes providing a battery display control switch, wherein the battery display control switch sends a signal to the battery display device through the control device to command the battery display device to display the battery power status, or sends a signal to the battery display device through the control device to command the battery display device not to operate.

13. The method of claim 3, further comprising providing the air pressure control assembly with an adjustment mechanism, and adjusting the first threshold air pressure and / or the second threshold air pressure by operating the adjustment mechanism.

14. The method of claim 2 further comprises providing a base disposed on the outer surface, and removably fixing one or more of the housing, the first one-way valve, the main air pump, the valve control assembly, the supplemental air pump, and the air pressure control assembly to the inflatable body through the base, wherein: The base is at least partially located within the interior cavity.

15. The method of claim 4, wherein: The valve control assembly includes a transmission mechanism connected to the motor, wherein the motor is suitable for driving the transmission mechanism, the transmission mechanism is suitable for driving the first one-way valve to move axially along the first air vent to open or close the first air vent, and the transmission mechanism is suitable for activating the closed position signal generating device to generate the closed position signal and is suitable for activating the open position signal generating device to generate the open position signal.

16. A method of inflating an inflatable body, comprising: Providing an inflatable body, a first one-way valve, a main air pump, and a valve control assembly, wherein the inflatable body includes an outer surface defining an internal cavity, the main air pump has a main air pump inlet and a main air pump outlet, and the valve control assembly includes a motor adapted to selectively open or close the first one-way valve; Providing an air pressure control assembly, an air supplement pump and a control device, wherein the control device is electrically connected to the main air pump, the valve control assembly, the air pressure control assembly and the air supplement pump, wherein the air pressure control assembly is adapted to detect the air pressure in the internal cavity and generate a first air pressure signal when the air pressure reaches a first threshold air pressure, and generate a second air pressure signal when the air pressure reaches a second threshold air pressure; When the air pressure detected by the air pressure control assembly is lower than the first threshold air pressure, the control device sends an opening signal to the motor to open the first one-way valve and sends an operation signal to the main air pump to command the main air pump to start operation, and when the first one-way valve is opened, the valve control assembly sends an open position signal to the control device, and the control device then sends a stop signal to the motor to stop the motor; and When the air pressure detected by the air pressure control component reaches the first threshold air pressure, the control device sends a stop signal to the main air pump to command the main air pump to stop running and sends a closing signal to the motor to close the first one-way valve, and when the first one-way valve is closed, the valve control component sends a closed position signal to the control device, and the control device then sends a stop signal to the motor to stop running.

17. The method of claim 16, wherein: After the control device has sent a stop signal to the main air pump and the air pressure detected by the air pressure control component reaches the second threshold pressure, the control device sends an air pump operation signal to start the operation of the air supplementary pump. When the air pressure detected by the air pressure control component reaches the first threshold pressure, the control device sends a air supplementary pump stop signal to the air supplementary pump.

18. The method of claim 16, further comprising providing an activation device activated by a user, the activation device being electrically connected to a control device, wherein when the activation device is activated, the control device sends an opening signal to the valve control assembly to open the first one-way valve.

19. The method of claim 16, further comprising providing a starter device activated by a user, wherein the control device sends an operation signal to the main air pump to start operation.

20. A method of inflating an inflatable body, comprising: Providing an inflatable body, a first one-way valve, a master air pump, a battery, and a valve control assembly, wherein the inflatable body includes an outer surface defining an internal cavity, the master air pump has a master air pump inlet and a master air pump outlet, and the valve control assembly includes a motor adapted to selectively open or close the first one-way valve; Providing an air pressure control assembly, an air supplement pump and a control device, wherein the control device is electrically connected to the main air pump, the battery, the valve control assembly, the air pressure control assembly and the air supplement pump, wherein the air pressure control assembly is adapted to detect the air pressure in the internal cavity and generate a first air pressure signal when the air pressure reaches a first threshold air pressure, and generate a second air pressure signal when the air pressure reaches a second threshold air pressure; When the air pressure detected by the air pressure control assembly is lower than the first threshold air pressure, the control device sends an opening signal to the motor to open the first one-way valve and sends an operation signal to the main air pump to command the main air pump to start operation, and when the first one-way valve is opened, the valve control assembly sends an open position signal to the control device, and the control device then sends a stop signal to the motor to stop the motor; and When the air pressure detected by the air pressure control component reaches the first threshold air pressure, the control device sends a stop signal to the main air pump to command the main air pump to stop running and sends a closing signal to the motor to close the first one-way valve, and when the first one-way valve is closed, the valve control component sends a closed position signal to the control device, and the control device then sends a stop signal to the motor to stop running.

21. The method of claim 20, further comprising providing a battery display device, and using the battery display device to display the charge status of the battery.

22. The method as claimed in claim 20 further includes providing a battery display control switch, wherein the battery display control switch sends a signal to the battery display device through the control device to command the battery display device to display the battery power status, or sends a signal to the battery display device through the control device to command the battery display device not to operate.

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