Air pump device with automatic air supply function and using method thereof

Abstract

The invention relates to an air pump device with an automatic air supply function and a using method thereof, and the air pump device comprises a mounting shell which is provided with an outer air port and a valve port; two ends of the air duct are respectively communicated with the outer air port and the valve port; the fan is arranged in the mounting shell and is used for driving air in the air duct to flow; the control system is arranged in the mounting shell and is used for controlling each electric device in the air pump device; the air supplementing pump is arranged in the mounting shell; the air pressure sensor collects air pressure data for the control system; the control system monitors the internal air pressure of the inflatable product through the air pressure sensor and triggers the air supplementing pump to output air used for entering an inner cavity of the inflatable product when the monitored air pressure value is lower than a preset threshold value. The air pump device can automatically find excessive change of the air pressure of the inflatable product, the air amount of the inflatable product is adjusted in time, it is ensured that the internal air pressure of the inflatable product is stable, and use is more flexible and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of air pumps for inflatable products, and in particular to an air pump device with an automatic air replenishment function and a use method thereof. Background Art

[0002] At present, the air pump of the prior art is often used to cooperate with the inflatable product, and the air pump is installed in the inflatable product to realize the automatic inflation of the inflatable product. Some large inflatable products are fixed with an inflatable air pump, and the inflatable air pump is provided with an air inlet. When inflating, the air inlet is opened, and the inflatable air pump can inflate the inner cavity of the inflatable product with gas. After the inflation is completed, the air inlet is closed to prevent the gas in the inflatable product from leaking out. When the inflatable product needs to be deflated, the deflation function of the air pump can be activated to automatically discharge the gas inside the inflatable product.

[0003] However, the current air pump device still has some shortcomings in practical applications. For example, after the air pump device completes inflating the inflatable product, it remains in a closed state. After the inflatable product is squeezed to a certain extent or after a period of time, the air inside tends to leak gradually, and the air pressure cannot be kept stable for a long time. After the inflatable product becomes noticeably soft due to excessive gas leakage and is discovered by the user, the user will consciously restart the air pump device to replenish the inflatable product with gas so that the inflatable product can be restored to an expanded state with a suitable hardness. Therefore, it is inconvenient to use. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides an air pump device with automatic air replenishment function and a method of using the same, which can enable the air pump device to automatically detect excessive changes in the air pressure of an inflatable product and promptly adjust the air volume of the inflatable product to ensure that the internal air pressure of the inflatable product is stable, making it more flexible and convenient to use.

[0005] The present invention discloses an air pump device with an automatic air replenishment function, the structure of which comprises:

[0006] A mounting shell is provided with an external air inlet and a valve port, wherein the external air inlet is used to be arranged on the outside of the inflatable product, and the valve port is used to connect to the inner cavity of the inflatable product; an air duct is formed in the mounting shell and has the external air inlet and the valve port connected at both ends respectively; a fan is arranged in the mounting shell and is used to drive the air flow in the air duct; a control system is arranged in the mounting shell and is used to control various electrical components in the air pump device; and also includes: an air supply pump, which is arranged in the mounting shell and is controlled by the control system; an air pressure sensor is used to collect air pressure data for the control system; wherein the control system monitors the internal air pressure of the inflatable product through the air pressure sensor and triggers the air supply pump to output air for entering the inner cavity of the inflatable product when the monitored air pressure value is lower than a preset threshold value.

[0007] According to an air pump device with an automatic air replenishment function of the present invention, the outer wall of the mounting shell is provided with a detection port for connecting to the inner cavity of an inflatable product; a gas pressure sampling tube is arranged in the mounting shell; one end of the gas pressure sampling tube is sealed and connected to the detection port, and the other end is sealed and connected to the detection end of the air pressure sensor; wherein the detection end of the air pressure sensor is connected to the inner cavity of the inflatable product through the gas pressure sampling tube.

[0008] According to an air pump device with automatic air replenishment function of the present invention, the air replenishment pump is provided with an external air intake port and an air injection pipe; the external air intake port is connected to the air duct in the mounting shell; an air replenishment box is provided on the mounting shell; nozzle interfaces and air replenishment ports are respectively provided on opposite sides of the air replenishment box; the nozzle interface is sealed and docked with the air injection pipe; the air replenishment port is used to connect to the inner cavity of the inflatable product to the outside; a plurality of silencer cotton blocks contained in the air replenishment box are arranged between the nozzle interface and the air replenishment port; a transition cavity formed in the air replenishment box is respectively provided between each of the silencer cotton blocks; a plurality of partition plates are arranged in the transition cavity, each of the partition plates is respectively provided with an intermediate channel, and the positions of two adjacent intermediate channels are staggered. Wherein, the air replenishment pump inhales air through the external air intake port and inputs airflow into the air replenishment box through the air injection pipe and the nozzle interface, and drives the airflow to pass through each silencer cotton block in turn and then outputs it from the air replenishment port to the inner cavity of the inflatable product.

[0009] According to an air pump device with automatic air replenishment function of the present invention, an air collecting chamber is formed between the inner side of the air replenishment box and one of the silencer cotton blocks, and the space of the air collecting chamber is smaller than the space of the transition chamber; the nozzle interface is connected to the inside of the air collecting chamber.

[0010] According to the air pump device with automatic air replenishment function of the present invention, a support plate fixed in the mounting shell is provided on one side of the air replenishment pump, and a shock absorbing block is elastically connected between the support plate and the air replenishment pump.

[0011] According to an air pump device with automatic air replenishment function of the present invention, the air replenishment pump includes a shell, and the opposite two ends of the shell are respectively provided with an external air intake port and an air injection pipe; the interior of the shell is provided with an air replenishment motor, an eccentric wheel, a lever, a dial and a plurality of elastic air bags; wherein, the eccentric wheel is provided with an eccentric hole, the eccentric hole is inclined and forms a certain angle with the rotating center hole of the eccentric wheel; the rotating shaft of the air replenishment motor is sleeved in the rotating center hole of the eccentric wheel; one end of the lever is inserted into the eccentric hole, and the other end is inserted into the center hole of the dial; a plurality of the elastic air bags are arranged circumferentially and surround the rotating center hole of the eccentric wheel; the air outlet of each of the elastic air bags is connected to the air injection pipe; wherein, the dial swings circumferentially with the rotation of the eccentric wheel, and the circumferentially swinging dial squeezes and compresses each of the elastic air bags in turn, and each of the elastic air bags recovers and expands after losing the squeezing force.

[0012] According to an air pump device with automatic air replenishment function of the present invention, the interior of the outer shell is provided with an air outlet cover, an air replenishment seat, a front fixing seat and a rear fixing seat which are sequentially connected to each other; the jet pipe is connected to the inner cavity of the air outlet cover; each of the elastic air bags is fixedly arranged in the front fixing seat; the air replenishment seat is provided with a plurality of air vents which are respectively connected to the inner cavity of the air outlet cover, and the air outlets of each elastic air bag are respectively connected to each of the air vents; the outer shell of the air replenishment motor is fixedly connected to the rear fixing seat, and the eccentric wheel, the lever and the dial are respectively accommodated and arranged in the rear fixing seat.

[0013] An air pump device with automatic air replenishment function according to the present invention also includes a plurality of connecting grooves, each of which is arranged circumferentially and is integrally formed on the outer walls of the air outlet cover, the air replenishment seat, the front fixing seat and the rear fixing seat; buckles are formed at both ends of each connecting groove on the outer walls of the air outlet cover and the rear fixing seat; a connecting rod is respectively sleeved in each of the connecting grooves, and hooks are respectively formed at both ends of the connecting rod, and the connecting rod is fixedly buckled to the buckles on the outer walls of the air outlet cover and the rear fixing seat through the hooks at both ends.

[0014] The vent cover is provided with a plurality of air intake holes, each of which is connected to the air intake pipe by a plurality of air intake cavities, and the air intake cavities are connected to the air intake cavities by a plurality of air intake cavities. The through holes are butt-jointed and connected, so that the first air-intake through hole is connected to the inner cavity of the front fixed seat; each of the elastic airbags is integrally formed on a substrate, the substrate is located between the air-replenishing seat and the front fixed seat, a plurality of third air-replenishing through holes are provided on the substrate, and the front fixed seat is also provided with a plurality of fourth air-replenishing through holes at positions corresponding to the third air-replenishing through holes, each of the fourth air-replenishing through holes is respectively connected to the inner cavity of the front fixed seat at one end, and the other end is butt-jointed and connected with each of the third air-replenishing through holes; a plurality of air-replenishing grooves are integrally formed on the air-replenishing seat, each of the air-replenishing grooves is respectively connected to the air outlet of each elastic airbag at one end, and the other end is connected to each of the third air-replenishing through holes; each of the jet chambers is respectively separated by a central cavity, and each of the central cavities is respectively butt-jointed and connected with each of the air holes on the air-replenishing seat in a sealed manner; each of the jet chambers is also respectively separated by a multi-section tortuous channel, the multi-section tortuous channel surrounds the outer periphery of the central cavity and is connected to the central cavity at one end, and is connected to the jet hole at the center of the outlet cover at the other end.

[0015] In addition to a fan for inflating and deflating an inflatable product arranged inside a mounting shell, an air pump device with an automatic air replenishment function of the present invention further includes an air replenishment pump and an air pressure sensor. The air pressure sensor is used to detect and collect air pressure data of the inner cavity of the inflatable product for the control system of the air pump device. The control system monitors the internal air pressure of the inflatable product through the air pressure sensor and triggers the air replenishment pump to output air for entering the inner cavity of the inflatable product when the monitored air pressure value is lower than a preset threshold value. Through this solution, the air pump device can automatically detect excessive changes in the air pressure of the inflatable product and adjust the air volume of the inflatable product in time to ensure that the internal air pressure of the inflatable product is stable, making it more flexible and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required to be used in the embodiments or the description of the prior art are briefly introduced below.

[0017] Figure 1 It is the external structure diagram of the present invention;

[0018] Figure 2 It is the internal structure diagram of the present invention;

[0019] Figure 3 It is the internal structure diagram of the present invention;

[0020] Figure 4 is an internal structure diagram of the present invention (mainly hiding the L-shaped switching tube 108);

[0021] Figure 5 It is a structural diagram of the control system in the present invention;

[0022] Figure 6 It is a structural diagram of the bottom of the mounting shell in the present invention;

[0023] Figure 7 It is the internal structure diagram of the present invention;

[0024] Figure 8 It is a partial enlarged view of the gas supplement box part of the present invention;

[0025] Fig. 9 It is an enlarged view of the air supplement box part of the present invention (the silencer cotton block is hidden);

[0026] Fig.10 It is the overall structural diagram of the air supplement pump part of the present invention;

[0027] Fig.11 It is an internal structure diagram of the air supplement pump of the present invention (the housing 21 is hidden);

[0028] Fig.12 It is a structural diagram of a connecting rod in the present invention;

[0029] Fig.13 It is an exploded view of the air supply pump part of the present invention;

[0030] Fig.14 It is a partial structural diagram of the air supplement pump part of the present invention;

[0031] Fig.15 It is a partial structural diagram of the air supplement pump part of the present invention;

[0032] Fig.16 It is a partial assembly diagram of the air supply pump part of the present invention;

[0033] Fig.17 It is a partial structural diagram of the air supplement pump part of the present invention;

[0034] Fig.18 It is a partial structural diagram of the air supplement pump part of the present invention;

[0035] Fig.19 It is a partial structural diagram of the air supplement pump part of the present invention;

[0036] Fig. 20 It is a partial structural diagram of the air supplement pump part of the present invention;

[0037] Fig.21 It is a structural diagram of the inner cavity of the air outlet cover of the air supply pump part of the present invention;

[0038] Fig. 22 It is a partial structural diagram of the air supplement pump part of the present invention;

[0039] Fig.23 It is a partial structural diagram of the air supplement pump part of the present invention;

[0040] Fig.24 It is a back structural diagram of the air supply seat of the air supply pump part of the present invention;

[0041] Fig.25 It is a partial enlarged view of the air supply pump part of the present invention;

[0042] Fig.26 It is a partial structural diagram of the air supplement pump part of the present invention.

[0043] Reference numerals:

[0044] 1. Mounting shell, 2. Mounting shell, 3. Valve port, 4. Control system, 5. Air supply pump, 6. Air supply port, 7. Air pressure sensor, 8. Detection port, 9. Gas pressure pipe, 10. External air intake port, 11. Jet pipe, 12. Air supply box, 13. Nozzle interface, 14. Silence cotton block, 15. Transition chamber, 16. Partition plate, 17. Middle channel, 18. Gas collecting chamber, 19. Support plate, 20. Shock absorber block, 21. Shell, 22. Air supply motor, 23. Eccentric wheel, 24. Lever, 25. Dial, 26. Elastic airbag, 261. Air outlet, 27. Eccentric hole, 28, air outlet cover, 29, air supply seat, 30, front fixing seat, 31, rear fixing seat, 32, vent hole, 33, connecting groove, 34, buckle position, 35, connecting rod, 36, hook, 37, jet chamber, 38, annular cavity, 39, jet hole, 40, inner air intake port, 41, first air intake hole, 42, second air intake hole, 43, third air intake hole, 431, fourth air intake hole, 44, substrate, 441, first elastic valve plate, 45, air supply groove, 46, central cavity, 47, multi-section tortuous channel, 48, sealing pad, 481, second elastic valve plate;

[0045] 100. Fan, 101. First partition plate, 102. Second partition plate, 103. Air blowing chamber, 104. Air suction chamber, 105. Air blowing outlet, 106. Air suction outlet, 107. Air duct box, 108. L-shaped switching tube. DETAILED DESCRIPTION

[0046] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings.

[0047] like Figures 1 to 26 As shown, an air pump device with an automatic air replenishment function, the structure of the air pump includes a mounting shell 1, the mounting shell 1 is provided with an external air port 2 and a valve port 3, when the air pump device is mounted on an inflatable product, the mounting shell 1 is fixedly embedded in the inner cavity of the inflatable product, and the external air port 2 is arranged on the outside of the inflatable product to facilitate the entry of external air, the valve port 3 is also located in the inner cavity of the inflatable product, so the valve port 3 can be connected to the inner cavity of the inflatable product, and an air duct (not marked in the figure) is formed inside the mounting shell 1, the two ends of the air duct are respectively connected to the external air port 2 and the valve port 3, the mounting shell 1 is also equipped with a fan 100, a control system 4, an air pump 5 and an air pressure sensor 7. The fan 100 is used to drive the air flow in the above-mentioned air duct. The control system 4 is used to control various electrical components in the air pump device. The start-up of the air pump 5 is controlled by the control system 4. The air pressure sensor 7 is used to collect air pressure data for the control system 4. The control system 4 monitors the internal air pressure of the inflatable product through the air pressure sensor 7 and triggers the air pump 5 to output air for entering the inner cavity of the inflatable product when the monitored air pressure value is lower than a preset threshold.

[0048] It can be understood that in addition to the fan 100 for inflating and deflating the inflatable product set inside the mounting shell 1, the air pump device of the present invention also adds an air pump 5 and an air pressure sensor 7. The air pressure sensor 7 is used to detect and collect the air pressure data of the inner cavity of the inflatable product for the control system 4 of the air pump device. The control system 4 monitors the internal air pressure of the inflatable product through the air pressure sensor 7 and triggers the air pump 5 to output air for entering the inner cavity of the inflatable product when the monitored air pressure value is lower than a preset threshold value. Through this solution, the air pump device can automatically detect that the inflatable product has leaked too much gas, automatically detects that the air pressure of the inflatable product has changed too much, and timely replenishes air to the inflatable product, adjusts the air volume of the inflatable product, ensures that the internal air pressure of the inflatable product is stable, and is more flexible and convenient to use.

[0049] The method of using the above-mentioned air pump device is as follows:

[0050] 1. The first use scenario: When it is necessary to inflate an inflatable product, the control system 4 controls the valve port 3 of the air pump device to open, and at the same time controls the fan 100 to rotate and suck the outside air from the outer air port 2 of the air pump device into the air duct of the air pump device and drives the air in the air duct into the interior of the inflatable product through the valve port 3. When the air pressure sensor 7 of the air pump device detects that the air pressure in the inner cavity of the inflatable product rises to a preset threshold, the control system 4 controls the fan 100 to stop and controls the valve port 3 of the air pump device to close. Through the use method in this scenario, the air pump device can quickly inflate the inflatable product, so that the inner cavity of the inflatable product is quickly filled with gas, and then it quickly expands and can be put into normal use.

[0051] 2. The second usage scenario: After inflation is completed, the control system 4 continues to monitor the internal air pressure of the inflatable product through the air pressure sensor 7. When the air pressure value monitored by the air pressure sensor 7 is lower than the preset threshold, the control system 4 starts the air pump 5 of the air pump device to replenish air to the inner cavity of the inflatable product. When the air pressure sensor 7 detects that the air pressure in the inner cavity of the inflatable product rises to the preset threshold, the control system 4 controls the air pump 5 to stop working. The method of use in this scenario can make the air pump device automatically detect that the inflatable product has leaked too much gas, and replenish air to the inflatable product in time, ensuring that the internal air pressure of the inflatable product is stable, and the use is more flexible and convenient.

[0052] 3. The third usage scenario: When it is necessary to deflate the inflatable product, the control system 4 controls the valve port 3 of the air pump device to open, and at the same time controls the fan 100 to rotate and continuously drives the air in the air duct of the air pump device to be discharged to the outside through the external air port 2, so that the air duct of the air pump device forms a negative pressure and the air in the inner cavity of the inflatable product is extracted through the valve port 3; when the air pressure sensor 7 of the air pump device detects that the air pressure in the inner cavity of the inflatable product drops to a preset threshold, the control system 4 controls the fan 100 to stop and controls the closing of the valve port 3 of the air pump device. The method of use in this scenario enables the air pump device to quickly deflate the inflatable product, so that the gas is quickly extracted from the expanded inner cavity of the inflatable product, and the inflatable product can be quickly switched to a contracted state.

[0053] 4. The fourth usage scenario: when it is necessary to adjust and lower the air pressure of the inflatable product, the control system 4 controls the opening of the valve port 3 to allow the air in the inner cavity of the inflatable product to naturally enter the air duct of the air pump device and be discharged to the outside through the external air port 2; when the air pressure sensor 7 of the air pump device detects that the air pressure in the inner cavity of the inflatable product drops to a preset threshold value, the control system 4 controls the closing of the valve port 3 of the air pump device; if the air pressure sensor 7 detects that the air pressure in the inner cavity of the inflatable product is lower than the preset threshold value, the control system 4 starts the air replenishing pump 5 of the air pump device to replenish air in the inner cavity of the inflatable product. When the air pressure sensor 7 of the air pump device detects that the air pressure in the inner cavity of the inflatable product rises to the preset threshold value, the control system 4 controls the air replenishing pump 5 to stop working. Through the usage method in this scenario, the air pump device can easily adjust and lower the air pressure of the inflatable product to prevent the inflatable product from expanding to an overly hard state and affecting the user's experience. After the air pressure of the inflatable product is adjusted and lowered, if low air pressure occurs due to inaccurate adjustment, the control system 4 of the air pump device can detect it in time through the air pressure sensor 7, and can replenish air to the inflatable product in time to ensure that the internal air pressure of the inflatable product meets the requirements, making the air pump device's pressure adjustment operation on the inflatable product more flexible and convenient.

[0054] In one embodiment, specifically, a detection port 8 is provided on the outer wall of the mounting shell 1, and the detection port 8 is used to connect to the inner cavity of the inflatable product. A gas pressure sampling tube 9 is installed in the mounting shell 1, and one end of the gas pressure sampling tube 9 is sealed and docked with the detection port 8, and the other end of the gas pressure sampling tube 9 is sealed and docked with the detection end of the air pressure sensor 7, and the detection end of the air pressure sensor 7 is connected to the inner cavity of the inflatable product through the gas pressure sampling tube 9. Therefore, through this structure, the air pressure sensor 7 located inside the mounting shell 1 can smoothly monitor the internal air pressure of the inflatable product and collect air pressure data.

[0055] Specifically, the specific structure of the air supplement pump 5 is as follows:

[0056] The air pump 5 is provided with an external air intake port 10 and an air injection pipe 11. The external air intake port 10 is connected to the air duct in the installation shell 1, so that the air pump 5 can draw air through the air duct in the installation shell 1. In addition, a gas replenishment box 12 is provided at the bottom of the installation shell 1. The left and right sides of the gas replenishment box 12 are respectively provided with a nozzle interface 13 and a gas replenishment port 6. The nozzle interface 13 is sealed and docked with the air injection pipe 11 of the air replenishment pump 5, so that the air pump 5 can input gas into the inside of the gas replenishment box 12 through the nozzle interface 13, and the gas replenishment port 6 is used to connect the inner cavity of the inflatable product to the outside. Therefore, the gas input from the air pump 5 into the gas replenishment box 12 can smoothly enter the inside of the inflatable product through the gas replenishment port 6 to perform the gas replenishment operation on the inflatable product. In addition, two silencer cotton blocks 14 are arranged between the nozzle interface 13 and the air supply port 6, and are sleeved inside the air supply box 12. A transition chamber 15 formed inside the air supply box 12 is provided between the two silencer cotton blocks 14. Two partition plates 16 are arranged inside the transition chamber 15. The two partition plates 16 are provided with intermediate channels 17, and the two adjacent intermediate channels 17 are staggered at different positions to ensure that the two intermediate channels 17 do not directly correspond to each other. The air supply pump 5 inhales air through the external air intake port 10, and the air supply pump 5 inputs airflow into the air supply box 12 through the jet pipe 11 and the nozzle interface 13, and drives the airflow to pass through each silencer cotton block 14 in turn and then output it from the air supply port 6 to the inner cavity of the inflatable product.

[0057] It can be understood that the above structure can make the air pump 5 be able to smoothly draw air from the outside from the air duct inside the air pump device, ensuring that the air pump 5 can work normally. In addition, the air ejected by the air pump 5 first needs to enter the air box 12 and pass through the various silencer cotton blocks 14 inside the air box 12 in sequence before finally entering the inflatable product. This structure can effectively reduce the noise generated by the air flow output by the air pump 5 in the process of leading to the inside of the inflatable product, which helps to make the air pump device quieter during the air replenishment process. In addition, the gas input from the air pump 5 to the inside of the air box 12 can also pass through the transition cavity 15 spaced between the two silencer cotton blocks 14 before reaching the inner cavity of the inflatable product. This structure helps to reduce the resistance encountered when the air flow passes through each silencer cotton block 14, so it can take into account noise reduction while ensuring that the air flow output by the air pump 5 flows as smoothly as possible inside the air box 12, and avoid the internal air flow velocity of the air box 12 being too slow as much as possible, so as to ensure that the gas output by the air pump 5 can efficiently enter the inside of the inflatable product. It should also be noted that the two adjacent intermediate channels 17 in the above structure are staggered at different positions to ensure that the two intermediate channels 17 do not directly correspond to each other. This structure can prevent the airflow from passing directly out of the transition chamber 15 and allow the airflow to fill the entire transition chamber 15 more easily, so that the airflow can increase the contact area with the silencer cotton block 14 in the transition chamber 15, and then the airflow can pass through the silencer cotton block 14 more fully, thereby achieving a better noise reduction effect.

[0058] Furthermore, an air collecting chamber 18 is formed between the inner side of the air-filling box 12 and a silencer cotton block 14 on the left, the space of the air-collecting chamber 18 is smaller than the space of the transition chamber 15, and the nozzle interface 13 is connected to the inside of the air-collecting chamber 18. It can be understood that by forming the air-collecting chamber 18 inside the air-filling box 12 and allowing the nozzle interface 13 to be connected to the air-collecting chamber 18, this structure can prevent the gas output by the air-filling pump 5 from first entering the silencer cotton block 14 in the air-filling box 12, but allows the gas output by the air-filling pump 5 to first enter and fill the air-collecting chamber 18 in the air-filling box 12, so that the airflow can increase the contact area with the silencer cotton block 14 in the air-collecting chamber 18, and then the airflow can pass through the silencer cotton block 14 more fully, achieving a better noise reduction effect.

[0059] Specifically, a support plate 19 fixed in the mounting shell 1 is provided on one side of the air pump 5, and a plurality of shock-absorbing blocks 20 are elastically connected between the support plate 19 and the air pump 5. Therefore, under the buffering effect of each shock-absorbing block 20, the mechanical vibration generated during the operation of the air pump 5 can be prevented from being directly transmitted to the mounting shell 1 of the air pump device, thereby optimizing the shock-absorbing effect of the air pump device.

[0060] In one embodiment, the air supply pump 5 includes a housing 21, and the two opposite ends of the housing 21 are respectively provided with an external air inlet 10 and the above-mentioned jet pipe 11, and the housing 21 is provided with an air supply motor 22, an eccentric wheel 23, a lever 24, a dial 25, and four elastic air bags 26. More specifically, an eccentric hole 27 is formed on the eccentric wheel 23, and the eccentric hole 27 is inclined and forms a certain angle with the rotation center hole of the eccentric wheel 23. The rotating shaft of the air supply motor 22 is sleeved in the rotation center hole of the eccentric wheel 23 to drive the eccentric wheel 23 to rotate, and one end of the lever 24 is inserted into the eccentric hole 27, and the other end is inserted into the center hole of the dial 25. The four elastic air bags 26 are arranged circumferentially and surround the rotation center hole of the eccentric wheel 23; the gas outlet 261 of each elastic air bag 26 is connected to the jet pipe 11, so that the gas ejected from the elastic air bag 26 can enter the jet pipe 11 through the gas outlet 261. It can be understood that through the above structure, when the air pump 5 needs to output gas to the outside, the air motor 22 drives the eccentric wheel 23 to rotate. During the rotation of the eccentric wheel 23, the eccentric hole 27 and the lever 24 can drive the dial 25 to swing circumferentially. The dial 25 can swing circumferentially with the rotation of the eccentric wheel 23. In this process, the circumferentially swinging dial 25 can squeeze and compress each elastic air bag 26 in turn. Each elastic air bag 26 that is squeezed and compressed in turn can compress the air inside itself in turn and drive the internal air to be output to the injection pipe 11 through the air outlet 261, and finally enter the inner cavity of the inflatable product through the injection pipe 11, thereby realizing the air replenishment function of the air pump 5 on the inflatable product. However, in the process of the dial 25 squeezing and compressing each elastic airbag 26 in turn, each elastic airbag 26 also loses the squeezing force in turn and resumes expansion respectively. The elastic airbag 26 that has output air flow to the outside can automatically inhale again, preparing to output air to the outside after being squeezed and compressed by the dial 25 next time. The structure is also simpler and more compact, allowing the air pump 5 to output gas to the outside more efficiently.

[0061] In one embodiment, the interior of the shell 21 is provided with an air outlet cover 28, an air supply seat 29, a front fixing seat 30 and a rear fixing seat 31 which are connected to each other in sequence, the air injection pipe 11 is connected to the inner cavity of the air outlet cover 28, and a mounting position matching the elastic airbag 26 is integrally formed in the front fixing seat 30, so that each elastic airbag 26 can be fixedly sleeved in the front fixing seat 30, the shell of the air supply motor 22 is fixedly connected to the rear fixing seat 31, the eccentric wheel 23, the lever 24 and the dial 25 are respectively accommodated and installed in the rear fixing seat 31, and in addition, four air vents 32 are provided on the air supply seat 29, and the four air vents 32 are respectively connected to the inner cavity of the air outlet cover 28. After assembly is completed, the air outlets 261 of the four elastic airbags 26 are connected to the four air vents 32 one by one. Through this structure, when each elastic airbag 26 is squeezed by the dial 25 in turn and outputs gas to the outside, the gas output from each outlet 261 can continue to enter the inner cavity of the air outlet cover 28 through the four air vents 32 on the air supply seat 29. After the airflow reaches the inner cavity of the air outlet cover 28, it can smoothly enter the injection pipe 11 and be output to the outside, thereby realizing the external air supply of the air supply pump 5.

[0062] In one embodiment, the structure of the air supplement pump 5 further includes a plurality of connecting grooves 33, each of which is arranged circumferentially, and each of which is formed integrally on the outer walls of the air outlet cover 28, the air supplement seat 29, the front fixing seat 30, and the rear fixing seat 31, which is equivalent to the connecting grooves 33 being formed separately on the outer walls of the air outlet cover 28, the air supplement seat 29, the front fixing seat 30, and the rear fixing seat 31, so that the connecting grooves 33 span the outer walls of the air outlet cover 28, the air supplement seat 29, the front fixing seat 30, and the rear fixing seat 31, and the two ends of each connecting groove 33 are respectively on the air outlet cover 28 and the outer walls of the air supplement seat 29. A buckle position 34 is formed on the outer wall of the rear fixed seat 31, that is, only the outer walls of the air outlet cover 28 and the rear fixed seat 31 are formed with the buckle position 34, and a connecting rod 35 is respectively sleeved in each connecting groove 33, and hooks 36 are respectively formed at both ends of the connecting rod 35. The connecting rod 35 is fixedly buckled to the buckle position 34 on the outer wall of the air outlet cover 28 and the rear fixed seat 31 through the hooks 36 at both ends. Therefore, with the joint buckling of multiple connecting rods 35, the air outlet cover 28, the air replenishing seat 29, the front fixed seat 30 and the rear fixed seat 31 can be easily and firmly connected as a whole, and assembly is easier.

[0063] In one embodiment, specifically, the inner cavity of the air outlet cover 28 is divided into four jet chambers 37 and an annular chamber 38. The four jet chambers 37 intersect and connect at the center, and the annular chamber 38 is separated from the four jet chambers 37. At the same time, the air outlet cover 28 is also provided with a jet hole 39 and an inner air intake port 40. The jet hole 39 is located at the center of the air outlet cover 28 and is used to dock and connect the jet pipe 11, and the four jet chambers 37 surround the jet hole 39 and are commonly connected to the jet hole 39 at the center position. Therefore, the air in the four jet chambers 37 can be output to the jet pipe 11 of the air supplement pump 5 through the central jet hole 39, and the annular chamber 38 surrounds the outer periphery of each jet chamber 37, and the annular chamber 38 is connected to the inner air intake port 40, so the air can enter the annular chamber 38 inside the air outlet cover 28 through the inner air intake port 40. On the other hand, a gap channel (not shown in the figure) is formed between the inner wall of the housing 21 and the outer walls of the air supply motor 22, the rear fixing seat 31, the front fixing seat 30, the air supply seat 29 and the air outlet cover 28. The two ends of the gap channel are respectively connected to the inner air intake port 40 and the outer air intake port 10, so the air in the air duct inside the installation shell 1 can enter the above-mentioned gap channel through the outer air intake port 10 of the air supply pump 5, and reach the inner air intake port 40 of the air outlet cover 28 through the above-mentioned gap channel and smoothly enter the annular cavity 38 inside the air outlet cover 28. On the other hand, four first air intake holes 41 distributed in the circumferential direction are also opened on the air supply seat 29, and one end of the four first air intake holes 41 is respectively connected to the annular cavity 38 of the air outlet cover 28, and the other end is used to connect to the inner cavity formed inside the front fixing seat 30. Specifically, four second air intake holes 42 are provided on the front fixed seat 30, one end of the four second air intake holes 42 is connected to the inner cavity of the front fixed seat 30, and the other end is connected to the first air intake holes 41 on the air replenishing seat 29, so that the first air intake holes 41 on the air replenishing seat 29 can be connected to the inner cavity of the front fixed seat 30. Four elastic air bags 26 are integrally formed on a substrate 44, and the substrate 44 is installed between the air replenishing seat 29 and the front fixed seat 30. Four third air suction holes 43 are opened on the substrate 44, and the front fixed seat 30 is also provided with four fourth air suction holes 431 at positions corresponding to the third air suction holes 43. One end of each fourth air suction hole 431 is connected to the inner cavity of the front fixed seat 30, and the other end is connected to each third air suction hole 43; four air replenishing grooves 45 are integrally formed on the air replenishing seat 29, and one end of the four air replenishing grooves 45 is connected to the air outlet 261 of each elastic air bag 26, and the other end is connected to each third air suction hole 43, that is, the two ends of the air replenishing grooves 45 are respectively connected to the third air suction holes 43 on the substrate 44 and the air outlet 261 on the elastic air bag 26. Finally, inside the gas outlet cover 28 , the four gas injection chambers 37 are respectively separated by central chambers 46 , and each central chamber 46 is respectively connected to each vent hole 32 on the gas replenishing seat 29 in a sealed manner.Each jet cavity 37 is further separated by a multi-section tortuous channel 47 , which surrounds the outer periphery of the central cavity 46 , and one end of the multi-section tortuous channel 47 is connected to the central cavity 46 , and the other end is connected to the jet hole 39 in the center of the gas outlet cover 28 . Through the above structure, when external air can enter the gap channel of the air supply pump housing 21 through the external air intake port 10 of the air supply pump 5, and continue to enter the annular cavity 38 inside the air outlet cover 28 through the internal air intake port 40 on the air outlet cover 28, after entering the annular cavity 38, it can continue to pass through the first air intake hole 41 and the second air intake hole 42 of the air supply seat 29 in sequence to smoothly enter the inner cavity of the front fixed seat 30. When each elastic air bag 26 needs to be sucked and rebounded after being squeezed, the air entering the inner cavity of the front fixed seat 30 from the outside can pass through the fourth air intake hole 431 of the front fixed seat 30, the third air intake hole 43 of the substrate 44 and the air supply groove 45 on the air supply seat 29 in sequence to smoothly enter the air outlet 261 of the elastic air bag 26, ensuring that the elastic air bag 26 can smoothly suck and rebound. In addition, the elastic airbag 26 squeezed and compressed by the dial 25 can also drive the internal air to enter the central cavities 46 of the outlet cover 28 through the air outlet 261 and the vent 32 of the air replenishment seat 29 in turn. The airflow entering the central cavity 46 continues to flow along the above-mentioned multi-section tortuous channel 47 to the jet hole 39 in the center of the outlet cover 28, and finally can be output to the outside through the jet pipe 11 of the air replenishment pump 5, so that the air replenishment pump 5 can smoothly output the air used to replenish the inner cavity of the inflatable product, so that the air pump device can realize the air replenishment function of the inflatable product. It should also be noted that due to the tortuous structure inside the multi-section tortuous channel 47, the airflow can be subjected to more resistance during the flow of the multi-section tortuous channel 47, thereby reducing the noise generated by the airflow, so that the air replenishment pump 5 can be quieter during operation.

[0064] In one embodiment, a plurality of first elastic valve pieces 441 respectively located in each third air suction through hole 43 are integrally formed on the substrate 44, the thickness of the first elastic valve piece 441 is less than the thickness of the substrate 44, and the first elastic valve piece 441 is located on the side close to the front fixed seat 30, the first elastic valve piece 441 is spaced a certain distance from the air supply groove 45, and each first elastic valve piece 441 is attached to the plane of the front fixed seat 30 and is respectively closed to each second air suction through hole 42 on the front fixed seat 30. It can be understood that under the blocking effect of the plane of the front fixed seat 30, each first elastic valve piece 441 cannot move in the direction of the front fixed seat 30, and because the first elastic valve piece 441 is spaced a certain distance from the air supply groove 45, the first elastic valve piece 441 can move in the direction of the air supply groove 45, and through this structure, each first elastic valve piece 441 can only move in one direction in the direction of the air supply groove 45. Therefore, when the elastic airbags 26 are squeezed and output airflow in turn, the first elastic valve sheets 441 can block the airflow output from the elastic airbags 26 from entering the second air intake holes 42 on the front fixing seat 30 in reverse, ensuring the unidirectional flow of the airflow in the air replenishment pump 5.

[0065] In one embodiment, a sealing gasket 48 is provided between the air outlet cover 28 and the air replenishing seat 29, the sealing gasket 48 is squeezed between the air outlet cover 28 and the air replenishing seat 29, and a plurality of second elastic valve sheets 481 are integrally formed on the sealing gasket 48, the thickness of the second elastic valve sheet 481 is less than the thickness of the sealing gasket 48, and the second elastic valve sheet 481 is located on the side close to the air replenishing seat 29, the second elastic valve sheet 481 is spaced a certain distance from the air outlet cover 28, and each second elastic valve sheet 481 is attached to the plane of the air replenishing seat 29 and respectively closes each air vent 32 on the air replenishing seat 29.

[0066] It can be understood that under the blocking effect of the plane of the air supply seat 29, each second elastic valve piece 481 cannot move in the direction of the air outlet cover 28, and because the second elastic valve piece 481 is spaced a certain distance from the air outlet cover 28, the second elastic valve piece 481 can move in the direction of the air outlet cover 28. Through this structure, each second elastic valve piece 481 can only move in the direction of the air outlet cover 28. Therefore, when each elastic airbag 26 outputs the airflow entering each vent hole 32 in turn, it can also push open the second elastic valve piece 481 in front of each vent hole 32 in turn, so that the airflow can smoothly pass through the vent hole 32 and be output to the air outlet cover 28. In this process, the second elastic valve piece 481 that is not pushed open by the airflow from the elastic airbag 26 can block the airflow that has entered the inner cavity of the air outlet cover 28 from entering the vent hole 32 in the reverse direction, ensuring that the airflow will not be intertwined between the vent holes 32 during the process of the air supply pump outputting the airflow, and ensuring the one-way flow of the airflow in the air supply pump 5.

[0067] In one embodiment, a first partition plate 101 and a second partition plate 102 are further provided in the mounting shell 1. The first partition plate 101 divides the interior of the mounting shell 1 into two left and right cavities. The fan 100 is installed in the left cavity, while the air supply pump 5, the control system 4, the air pressure sensor 7, the detection port 8 and the gas pressure sampling tube 9 are arranged in the right cavity. In addition, a duct box 107 and an L-shaped switching tube 108 are also installed at the bottom of the right cavity. The L-shaped switching tube 108 is controlled by a solenoid valve (not marked in the figure) inside the mounting shell 1 so that the L-shaped switching tube 108 can move up and down. The second partition plate 102 divides the left cavity into two cavities, the upper cavity is the blowing cavity 103, and the lower cavity is the suction cavity 104. The fan 100 is a centrifugal fan. The centrifugal blades of the fan 100 are located in the upper blowing cavity 103, and the center of the centrifugal blades of the fan 100 is downwardly connected to the suction cavity 104 on the lower side. At the same time, the first partition plate 101 is provided with a blowing outlet 105 and a suction port 106 distributed up and down. The blowing outlet 105 is connected to the blowing cavity 103, and the suction port 106 is connected to the suction cavity 104. Therefore, when the centrifugal fan rotates, the diffused airflow generated by the centrifugal blades can be blown out from the blowing cavity 103 through the blowing outlet 105, and at the same time, external air can enter the suction cavity 104 through the suction port 106. During assembly, the lower port of the L-shaped switching tube 108 is slidably inserted into the air duct box 107, and the interior of the air duct box 107 is connected to the valve port 3 at the bottom of the mounting shell 1. When the L-shaped switching tube 108 moves upward, its left port is connected to the blowing outlet 105 of the first partition plate 101. When the L-shaped switching tube 108 moves downward, its left port is connected to the suction port 106 of the first partition plate 101.

[0068] Therefore, when the air pump device needs to inflate the inflatable product, the control system 4 controls the L-shaped switching tube 108 to move upward through the solenoid valve, so that the L-shaped switching tube 108 connects to the blowing outlet 105 to connect to the blowing cavity 103, and starts the centrifugal fan at the same time, driving the air in the blowing cavity 103 to enter the L-shaped switching tube 108 and continue to enter the air duct box 107. At the same time, the control system 4 also opens the valve of the valve port 3, and the airflow in the air duct box 107 can be smoothly output to the inner cavity of the inflatable product through the valve port 3. In this process, Under the action of the centrifugal fan, negative pressure will be formed inside the suction chamber 104. Since the L-shaped switching tube 108 is not connected to the suction port 106 at this time, the suction chamber 104 is connected to the right cavity of the mounting shell 1. Therefore, under the action of negative pressure, external air can automatically enter the inner cavity of the mounting shell 1 through the external air port 2 of the mounting shell 1 and continue to automatically enter the suction chamber 104 through the suction port 106, replenishing air to the suction chamber 104, ensuring that the centrifugal fan can normally suck the air in the suction chamber 104 and transmit it to the L-shaped switching tube 108. On the contrary, when the air pump device needs to deflate the inflatable product, the control system 4 controls the L-shaped switching tube 108 to move downward through the solenoid valve, so that the L-shaped switching tube 108 is connected to the suction port 106 to connect to the suction chamber 104. At this time, the L-shaped switching tube 108 is not connected to the blowing port 105, so that the blowing chamber 103 is connected to the right cavity of the installation shell 1. Therefore, starting the centrifugal fan at this time can allow the centrifugal fan blades to drive the air in the blowing chamber 103 to output the blowing port 105 and enter the right cavity of the installation shell 1, and finally pass through the outer air port of the installation shell 1. 2 is discharged to the outside. At the same time, the center of the centrifugal fan blades continuously draws the air in the suction chamber 104, so that a negative pressure is formed inside the suction chamber 104. The internal air of the inflatable product can automatically enter the valve port 3 and continue to enter the air duct box 107 and the L-shaped switching tube 108, and finally flow back to the suction chamber 104 through the suction port 106. As the air flowing back to the suction chamber 104 is continuously discharged to the outside through the blowing chamber 103, the air pump device can finally draw out the internal air of the inflatable product, so as to realize the recovery of the inflatable product in the later stage.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Simple modification or equivalent replacement of the various technical features of this embodiment are within the protection scope of the present invention.

Claims

1. An air pump device with automatic air replenishment function, characterized in that: include: A mounting shell (1) is provided with an external air port (2) and a valve port (3), wherein the external air port (2) is used to be arranged outside the inflatable product, and the valve port (3) is used to be connected to the inner cavity of the inflatable product; An air duct is formed in the mounting shell (1) and has two ends respectively connected to the external air port (2) and the valve port (3); A fan (100) is arranged in the installation shell (1) and is used to drive the air in the air duct to flow; A control system (4), which is arranged in the installation shell (1) and is used to control various electrical components in the air pump device; It is characterized by further comprising: An air supply pump (5) is arranged in the installation shell (1) and is controlled by the control system (4); an air pressure sensor (7) for collecting air pressure data for the control system (4); The control system (4) monitors the internal air pressure of the inflatable product through the air pressure sensor (7) and triggers the air supply pump (5) to output air for entering the inner cavity of the inflatable product when the monitored air pressure value is lower than a preset threshold.

2. The air pump device with automatic air replenishment function according to claim 1, characterized in that: The outer wall of the installation shell (1) is provided with a detection port (8) for communicating with the inner cavity of the inflatable product; A gas pressure collection pipe (9) is arranged in the installation shell (1); One end of the gas pressure sampling tube (9) is sealed and connected to the detection port (8), and the other end is sealed and connected to the detection end of the air pressure sensor (7); Wherein, the detection end of the air pressure sensor (7) is connected to the inner cavity of the inflatable product through the gas pressure sampling pipe (9).

3. The air pump device with automatic air replenishment function according to claim 1, characterized in that: The air supply pump (5) is provided with an external air intake port (10) and an air injection pipe (11); The external air intake port (10) is connected to the air duct in the installation shell (1); The mounting shell (1) is provided with an air supply box (12); The opposite sides of the air replenishment box (12) are respectively provided with a nozzle interface (13) and an air replenishment port (6); the nozzle interface (13) is sealedly connected to the air injection pipe (11); the air replenishment port (6) is used to connect to the inner cavity of the inflatable product to the outside; A plurality of silencer cotton blocks (14) contained in the air supply box (12) are arranged between the nozzle interface (13) and the air supply port (6); A transition cavity (15) formed inside the air replenishing box (12) is provided between each of the noise-absorbing cotton blocks (14); A plurality of partition plates (16) are arranged in the transition chamber (15), each of the partition plates (16) is provided with an intermediate channel (17), and the positions of two adjacent intermediate channels (17) are staggered. The air supply pump (5) inhales air through the external air intake port (10) and inputs air flow into the air supply box (12) through the air injection pipe (11) and the nozzle interface (13), and drives the air flow to pass through each silencer cotton block (14) in sequence and then output it from the air supply port (6) to the inner cavity of the inflatable product.

4. The air pump device with automatic air replenishment function according to claim 3, characterized in that: An air collecting chamber (18) is formed between the inner side of the air replenishing box (12) and one of the silencer cotton blocks (14), and the space of the air collecting chamber (18) is smaller than the space of the transition chamber (15); The nozzle interface (13) is connected to the interior of the gas collecting chamber (18).

5. The air pump device with automatic air replenishment function according to claim 1, characterized in that: A support plate (19) fixed in the mounting shell (1) is provided on one side of the air supply pump (5), and a shock absorbing block (20) is elastically connected between the support plate (19) and the air supply pump (5).

6. The air pump device with automatic air replenishment function according to claim 1, characterized in that: The air supply pump (5) comprises a housing (21), and opposite ends of the housing (21) are respectively provided with an external air intake port (10) and an air injection pipe (11); The housing (21) is provided with an air supply motor (22), an eccentric wheel (23), a lever (24), a dial (25) and a plurality of elastic air bags (26); Wherein, the eccentric wheel (23) is provided with an eccentric hole (27), the eccentric hole (27) is arranged obliquely and forms a certain angle with the rotation center hole of the eccentric wheel (23); The rotating shaft of the air-supplementing motor (22) is sleeved on the rotating center hole of the eccentric wheel (23); One end of the lever (24) is inserted into the eccentric hole (27), and the other end is inserted into the central hole of the dial (25); A plurality of elastic air bags (26) are arranged in a circumferential direction and surround the rotating center hole of the eccentric wheel (23); the air outlet (261) of each elastic air bag (26) is connected to the air injection pipe (11); The dial (25) swings circumferentially as the eccentric wheel (23) rotates, and the circumferentially swinging dial (25) squeezes and compresses each elastic airbag (26) in turn, and each elastic airbag (26) resumes expansion after losing the squeezing force.

7. The air pump device with automatic air replenishment function according to claim 6, characterized in that: The housing (21) is provided with an air outlet cover (28), an air supply seat (29), a front fixing seat (30) and a rear fixing seat (31) which are connected to each other in sequence. The air injection pipe (11) is connected to the inner cavity of the air outlet cover (28); Each of the elastic airbags (26) is fixedly disposed in the front fixing seat (30); The air replenishing seat (29) is provided with a plurality of vent holes (32) respectively connected to the inner cavity of the air outlet cover (28), and the air outlet (261) of each elastic air bag (26) is connected to each vent hole (32) respectively; The outer shell of the air supplement motor (22) is fixedly docked with the rear fixing seat (31), and the eccentric wheel (23), the shifting rod (24) and the dial (25) are respectively accommodated in the rear fixing seat (31).

8. The air pump device with automatic air replenishment function according to claim 7, characterized in that: It also includes a plurality of connection grooves (33), each of which is arranged in a circumferential direction and is formed integrally on the outer walls of the gas outlet cover (28), the gas replenishing seat (29), the front fixing seat (30) and the rear fixing seat (31); Both ends of each connection groove (33) are respectively formed with buckle positions (34) on the outer walls of the air outlet cover (28) and the rear fixing seat (31); A connecting rod (35) is respectively sleeved in each of the connecting grooves (33), and hooks (36) are respectively formed at both ends of the connecting rod (35). The connecting rod (35) is respectively fixedly buckled to the air outlet cover (28) and the buckling position (34) of the outer wall of the rear fixing seat (31) through the hooks (36) at both ends.

9. The air pump device with automatic air replenishment function according to claim 7, characterized in that: The inner cavity of the air outlet cover (28) is divided into a plurality of air jet chambers (37) and an annular chamber (38); the air outlet cover (28) is also provided with an air jet hole (39) and an inner air intake port (40); the air jet hole (39) is located at the center of the air outlet cover (28) and is used to connect with the air jet pipe (11); each of the air jet chambers (37) surrounds the air jet hole (39) and is connected to the air jet hole (39); the annular chamber (38) surrounds the outer circumference of each of the air jet chambers (37) and is connected to the inner air intake port (40); A gap channel is formed between the inner wall of the housing (21) and the outer walls of the air supply motor (22), the rear fixing seat (31), the front fixing seat (30), the air supply seat (29) and the air outlet cover (28), and the two ends of the gap channel are respectively connected to the inner air intake port (40) and the outer air intake port (10); the air supply seat (29) is also provided with a plurality of first air intake holes (41) distributed in a circumferential direction, and each of the first air intake holes (41) is respectively connected to the annular cavity (38) at one end, and the other end is used to connect to the inner cavity of the front fixing seat (30); The front fixing seat (30) is provided with a plurality of second air suction holes (42), one end of each of the second air suction holes (42) is connected to the inner cavity of the front fixing seat (30), and the other end is connected to each of the first air suction holes (41) so that the first air suction holes (41) are connected to the inner cavity of the front fixing seat (30); each of the elastic air bags (26) is integrally formed on a substrate (44), and the substrate (44) is located between the air replenishing seat (29) and the front fixing seat (30). The substrate (44) is provided with a plurality of third air suction holes ( 43), the front fixed seat (30) is further provided with a plurality of fourth air inlet holes (431) at positions corresponding to the third air inlet holes (43), each of the fourth air inlet holes (431) is connected to the inner cavity of the front fixed seat (30) at one end, and is connected to each of the third air inlet holes (43) at the other end; the air inlet seat (29) is integrally formed with a plurality of air inlet grooves (45), each of the air inlet grooves (45) is connected to the air outlet (261) of each elastic air bag (26) at one end, and is connected to each of the third air inlet holes (43) at the other end; Each of the jet chambers (37) is separated by a central cavity (46), and each of the central cavities (46) is sealed and connected to each of the vent holes (32) on the air replenishing seat (29); each of the jet chambers (37) is also separated by a multi-section tortuous channel (47), which surrounds the outer periphery of the central cavity (46) and is connected to the central cavity (46) at one end and to the jet hole (39) at the center of the air outlet cover (28) at the other end.

10. A method for using the air pump device according to any one of claims 1 to 9, characterized in that: When it is necessary to inflate the inflatable product, the control system (4) controls the valve port (3) of the air pump device to open, and at the same time controls the fan (100) to rotate and draw outside air from the outer air port (2) of the air pump device into the air duct of the air pump device and drives the air in the air duct into the interior of the inflatable product through the valve port (3); when the air pressure sensor (7) of the air pump device detects that the air pressure in the inner cavity of the inflatable product rises to a preset threshold value, the control system (4) controls the fan (100) to stop and controls the valve port (3) of the air pump device to close; After the inflation is completed, the control system (4) continues to monitor the internal air pressure of the inflatable product through the air pressure sensor (7). When the air pressure value monitored by the air pressure sensor (7) is lower than a preset threshold value, the control system (4) starts the air replenishment pump (5) of the air pump device to replenish air into the inner cavity of the inflatable product. When the air pressure sensor (7) detects that the air pressure in the inner cavity of the inflatable product rises to a preset threshold value, the control system (4) controls the air replenishment pump (5) to stop working. When it is necessary to deflate the inflatable product, the control system (4) controls the valve port (3) of the air pump device to open, and at the same time controls the fan (100) to rotate and continuously drive the air in the air duct of the air pump device to be discharged to the outside through the external air port (2), so that the air duct of the air pump device forms a negative pressure and the air in the inner cavity of the inflatable product is extracted through the valve port (3); when the air pressure sensor (7) of the air pump device detects that the air pressure in the inner cavity of the inflatable product drops to a preset threshold value, the control system (4) controls the fan (100) to stop and controls the valve port (3) of the air pump device to close; When it is necessary to adjust and lower the air pressure of the inflatable product, the control system (4) controls the valve port (3) to open, allowing the air in the inner cavity of the inflatable product to naturally enter the air duct of the air pump device and be discharged to the outside through the external air port (2); when the air pressure sensor (7) of the air pump device detects that the air pressure in the inner cavity of the inflatable product drops to a preset threshold value, the control system (4) controls the valve port (3) of the air pump device to close; if the air pressure sensor (7) detects that the air pressure in the inner cavity of the inflatable product is lower than the preset threshold value, the control system (4) starts the air replenishment pump (5) of the air pump device to replenish air in the inner cavity of the inflatable product; when the air pressure sensor (7) of the air pump device detects that the air pressure in the inner cavity of the inflatable product rises to the preset threshold value, the control system (4) controls the air replenishment pump (5) to stop working.

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