Suspension-type dual-cavity air pump device and suspension-type invertedly-exhausting air pump

Abstract

A suspension-type dual-cavity air pump device and a suspension-type invertedly-exhausting air pump, relating to the technical field of automobile seat massage apparatuses. The suspension-type dual-cavity air pump device comprises: a housing (1), wherein a mounting space is provided in the housing (1), and an air pump assembly is suspended in the mounting space by means of a tension hanger (3); and a soft sealing membrane (4), which is provided in the mounting space and configured to divide the mounting space into a first cavity (5) and a second cavity (6). The suspension-type invertedly-exhausting air pump comprises: a housing (61), wherein a mounting space is provided in the housing (61), an air inlet (62) is provided at the top of the housing (61), and an air outlet (63) is provided at the bottom or a side wall of the housing (61); an air pump assembly is suspended in the mounting space by means of a tension hanger (64); and a soft sealing membrane (65) is provided in the mounting space and is configured to divide the mounting space into a first cavity (66) and a second cavity (67). The suspension-type dual-cavity air pump device and the suspension-type invertedly-exhausting air pump are convenient to assemble, and can effectively reduce vibration and noise generated during operation; the air pump has small air flow fluctuations, and can be adapted to application scenarios of inverted exhausting.

Description

A suspended dual-chamber air pump device and a suspended inverted air outlet air pump

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 2025101777203, filed on February 18, 2025, entitled "A Suspended Dual-Cavity Air Pump Device", and Chinese Patent Application No. 2025202568709, filed on February 18, 2025, entitled "A Suspended Inverted Air Pump", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure generally relates to the field of automotive seat massage equipment technology, and specifically to a suspended dual-chamber air pump device and a suspended inverted air outlet air pump. Background Technology

[0004] Existing car seat massage functions are mainly achieved through air pumps. Their working principle involves connecting the air pump to a controller, which contains a switching valve. Using the air pump as the air source, the air pump, in conjunction with the opening and closing of the switching valve, inflates and deflates the air bag, thus achieving the massage function. Traditional air pumps are typically fixedly mounted inside a casing and assembled using rubber rings. However, this assembly method is complex, prone to installation errors, and because the air pump body inevitably comes into contact with the casing during operation, it generates vibration and noise, resulting in poor operational stability.

[0005] Meanwhile, traditional air pumps typically draw in air from the bottom and expel it from the top. When installed inside a car seat, the airflow fluctuations are significant in the confined space due to the special installation requirements. Summary of the Invention

[0006] Firstly, in view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a suspended dual-chamber air pump device to solve the above problems, which can prevent the vibration generated during the operation of the air pump assembly from being directly transmitted to the housing, thereby significantly reducing the housing vibration and accompanying noise problems caused by it.

[0007] Secondly, in view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a suspended inverted exhaust air pump to solve the above problems, which can meet the installation requirements of special structures and ensure easy assembly in confined spaces.

[0008] In a first aspect, this disclosure provides a suspended dual-chamber air pump device, comprising:

[0009] The housing has an installation space inside, and the housing has an air outlet connected to the installation space. The air pump assembly is suspended in the installation space by a suspension device.

[0010] A soft sealing membrane is disposed within the installation space. One end of the soft sealing membrane is connected to the outer shell, and the other end is connected to the air pump assembly. It is configured to divide the installation space into a first cavity and a second cavity. The air pump assembly includes an air inlet and an air outlet. The air inlet is unidirectionally connected to the air outlet. The air inlet is located in the first cavity, and the air outlet is located in the second cavity. The air outlet is connected to the air outlet through the second cavity.

[0011] The air pump assembly further includes a drive mechanism and at least one actuator, the drive mechanism and the actuator being configured to pressurize gas drawn in from the air inlet.

[0012] Optionally, the air pump assembly further includes an air distribution assembly, on which at least one air distribution passage is formed. The actuator cooperates with the air distribution assembly to form an actuation chamber, the volume of which is variable. One of the air distribution passages connects one of the actuation chambers and the second cavity, and the air distribution passage is unidirectionally connected to the actuation chamber. The air distribution assembly also forms at least one air distribution chamber, which connects one of the actuation chambers and the first cavity, and the air distribution chamber is unidirectionally connected to the actuation chamber. An air inlet is provided on the outer casing to connect the first cavity and the outside.

[0013] Optionally, the housing includes a detachably connected upper housing and a lower housing, with the air inlet located on the lower housing and the air outlet located on the upper housing; the soft sealing membrane is sandwiched between the upper housing and the lower housing.

[0014] Optionally, the gas distribution assembly includes: a gas distribution cushion, the gas distribution cushion being elastic, and at least one first gas guide portion being provided on the gas distribution cushion; a gas distribution top cover, the gas distribution top cover being disposed on the side of the gas distribution cushion near the gas outlet, the gas distribution top cover forming the gas distribution cavity after being closed with the gas distribution cushion, the gas distribution top cover being provided with at least one second gas guide portion, the second gas guide portion not communicating with the gas distribution cavity; and a gas distribution bottom cover, the gas distribution bottom cover being disposed on the side of the gas distribution cushion away from the gas outlet, the gas distribution bottom cover being provided with at least one third gas guide portion; the third gas guide portion, the second gas guide portion, and the first gas guide portion are interconnected and configured to connect the actuation cavity and the second cavity.

[0015] Optionally, the gas distribution passage includes a first air inlet, a first air outlet, a second air inlet, and a second air outlet. The first air inlet and the first air outlet are disposed on the gas distribution pad, and the second air inlet and the second air outlet are disposed on the gas distribution bottom cover. The second air inlet communicates with the first air inlet, and the gas distribution chamber communicates with the first cavity through the second air inlet and the first air inlet. The second air outlet communicates with the first air outlet, and the gas distribution chamber communicates with the actuation cavity through the second air outlet and the first air outlet. The second air outlet unidirectionally flows into the actuation cavity.

[0016] Optionally, the soft sealing membrane is disposed on the outer periphery of the air distribution pad and is an integral structure with the air distribution pad.

[0017] Optionally, the soft sealing film is installed on the outer periphery of the drive mechanism, and the soft sealing film is sleeved or snapped onto the drive mechanism.

[0018] Optionally, the soft sealing membrane extends towards the upper housing from the side near the top of the upper housing and is connected to the upper housing.

[0019] Optionally, the upper housing is further provided with an overflow device, which connects the second cavity to the outside of the outer shell.

[0020] Optionally, the tensioner is a hollow structure.

[0021] Secondly, this disclosure provides an inverted exhaust air pump, disposed within a car seat, comprising:

[0022] The housing has an installation space inside, an air inlet is provided on the top of the housing, and an air outlet is provided on the bottom or side wall of the housing;

[0023] An air pump assembly, which is suspended in the installation space by a hoist;

[0024] A soft sealing membrane is disposed within the installation space. One end of the soft sealing membrane is connected to the outer shell, and the other end is connected to the air pump assembly. It is configured to divide the installation space into a first cavity and a second cavity. The first cavity is connected to the air outlet, and the second cavity is connected to the air inlet. The air pump assembly includes an air inlet end and an air outlet end. The air inlet end is disposed near the headrest of the car seat relative to the air outlet end. The air path from the air inlet end to the air outlet end is unidirectional. The air inlet end is located in the second cavity, and the air outlet end is located in the first cavity. The air outlet end is connected to the air outlet through the first cavity.

[0025] The air pump assembly further includes a drive mechanism and at least one actuator, the drive mechanism and the actuator being configured to pressurize gas drawn in from the air inlet.

[0026] Optionally, the air pump assembly further includes an air distribution assembly, on which at least one air distribution passage is formed. The actuator cooperates with the air distribution assembly to form an actuation chamber, the volume of which is variable. The air distribution assembly also forms at least one air distribution chamber, and one air distribution passage connects one actuation chamber and one air distribution chamber, and connects the air distribution chamber to the first cavity.

[0027] Optionally, the gas distribution assembly includes: a gas distribution cushion, the gas distribution cushion being elastic, and at least one first gas guide portion being provided on the gas distribution cushion; a gas distribution top cover, the gas distribution top cover being disposed on the side of the gas distribution cushion near the air inlet, the gas distribution top cover forming the gas distribution cavity after being closed with the gas distribution cushion, and at least one second gas guide portion being provided on the gas distribution top cover; and a gas distribution bottom cover, the gas distribution bottom cover being disposed on the side of the gas distribution cushion away from the air inlet, and at least one third gas guide portion being provided on the gas distribution bottom cover; the third gas guide portion, the second gas guide portion, and the first gas guide portion cooperate to communicate with the actuation cavity and the second cavity, and unidirectional communication is provided from the second cavity to the actuation cavity.

[0028] Optionally, the gas distribution passage includes a first air inlet, a first air outlet, a second air inlet, and a second air outlet. The first air inlet and the first air outlet are disposed on the gas distribution pad and penetrate the gas distribution pad. The second air inlet and the second air outlet are disposed on the gas distribution bottom cover and penetrate the gas distribution bottom cover. The second air inlet and the first air inlet cooperate to connect a gas distribution chamber and an actuation chamber. The first air outlet and the second air outlet cooperate to connect an actuation chamber and the first chamber.

[0029] Optionally, the air pump assembly has a transfer chamber, which is located between the second air outlet and the first cavity. One end of the transfer chamber is connected to the second air outlet, and the other end is connected to the first cavity through an exhaust nozzle.

[0030] Optionally, the third air guide includes a mounting hole and multiple air passages, the mounting hole and the air passages penetrating the air distribution bottom cover, and the multiple air passages being disposed around the mounting hole; an air-blocking component is installed in the mounting hole, and the air-blocking component has an elastic air-blocking portion on the side of the air distribution bottom cover away from the air distribution pad, the elastic air-blocking portion abutting against the air distribution bottom cover; when air is guided from the second cavity to the actuation cavity, the elastic air-blocking portion opens the air passages, and when air is guided from the actuation cavity to the second cavity, the elastic air-blocking portion closes the air passages.

[0031] Optionally, the housing includes a detachably connected upper housing and a lower housing. The upper housing is provided with an air inlet, and the air inlet is formed on the air inlet. The lower housing is provided with an air outlet, and the air outlet is formed on the air outlet. The soft sealing membrane is sandwiched between the upper housing and the lower housing.

[0032] Optionally, the tensioner includes a first locking part and a second locking part, the first locking part locking with the air distribution top cover, and the second locking part penetrating the upper housing and locking with the upper housing.

[0033] Optionally, the tensioner is hollow inside and connected at both ends, the air inlet is formed inside the tensioner, and the air inlet extends into the second cavity and is directly connected to the air inlet end.

[0034] Optionally, the empty volume of the second cavity after the air pump assembly is installed is three times or more the volume of one of the actuation chambers.

[0035] Compared with the prior art, the beneficial effects of this disclosure are as follows:

[0036] Firstly, this disclosure provides a suspended dual-chamber air pump device. The air pump assembly is suspended within the installation space of the housing using a suspension device, effectively reducing contact between the air pump assembly and the housing. This prevents vibrations generated during air pump assembly operation from being directly transmitted to the housing, significantly reducing housing vibration and associated noise. Furthermore, installation using the suspension device is more convenient and effectively reduces installation errors. By using a soft sealing membrane to divide the installation space into a first chamber and a second chamber, sufficient buffering is provided before and after the gas enters the air pump assembly. In the first chamber, the gas accumulates smoothly. The first chamber provides a stable air source for the air pump assembly's inlet, while the second chamber allows for a smooth transition of the high-pressure gas discharged from the air pump assembly's outlet, effectively preventing airflow fluctuations when supplying air directly through the outlet and ensuring the continuity and stability of gas output. In addition, the soft sealing membrane connecting the air pump assembly and the housing also helps maintain the stability of the air pump assembly within the housing to some extent. By setting up a drive mechanism and at least one actuator, not only is efficient pressurization capability provided for the inhaled gas, but the separation of the first and second chambers also optimizes the gas flow path, reduces energy loss, and improves overall operating efficiency.

[0037] Secondly, this disclosure provides a suspended inverted air pump. By placing the air inlet at the top of the housing and the air outlet at the bottom or side wall of the housing, it differs from existing air pumps, meeting the installation requirements of special structures and ensuring easy assembly in confined spaces. By connecting an air bag to the air outlet and repeatedly squeezing the actuator through a drive mechanism, the air bag can be inflated, thereby achieving a massage effect. By setting the air distribution path to one-way flow, air can be prevented from returning to the second chamber during the compression of the actuator, thus avoiding the problem of poor inflation due to insufficient air supply to the actuator. By setting the first chamber and the second chamber for gas transition, the air pressure can be balanced, avoiding large fluctuations in the exhaust gas flow. By setting a tensioner to fix the air distribution component, the contact between the air distribution component and the housing is reduced compared to traditional assembly methods, thereby reducing the transmission of vibration generated during operation to the housing and preventing noise from the housing due to vibration. Attached Figure Description

[0038] Other features, objects, and advantages of this disclosure will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0039] Figure 1 is a schematic diagram of the structure of the first type of suspended dual-chamber air pump device provided in the embodiment;

[0040] Figure 2 is an exploded view of the suspended dual-chamber air pump device shown in Figure 1;

[0041] Figure 3 is a schematic diagram of the gas distribution component in the suspended dual-chamber air pump device shown in Figure 2.

[0042] Figure 4 is a schematic diagram of the suspension device in the suspended dual-chamber air pump device shown in Figure 2.

[0043] Figure 5 is a bottom view of the gas distribution top cover in the suspended dual-chamber air pump device shown in Figure 2.

[0044] Figure 6 is a cross-sectional view of the suspended dual-chamber air pump device shown in Figure 1;

[0045] Figure 7 is a schematic diagram of the soft sealing membrane in a relaxed state in the suspended dual-chamber air pump device shown in Figure 1.

[0046] Figure 8 is a cross-sectional view of the second type of suspended dual-chamber air pump device provided in the embodiment;

[0047] Figure 9 is a cross-sectional view of another section of the second type of suspended dual-chamber air pump device provided in the embodiment;

[0048] Figure 10 is a cross-sectional view of the third type of suspended dual-chamber air pump device provided in the embodiment;

[0049] Figure 11 is a cross-sectional view of the fourth type of suspended dual-chamber air pump device provided in the embodiment;

[0050] Figure 12 is a cross-sectional view of the fifth type of suspended dual-chamber air pump device provided in the embodiment;

[0051] Figure 13 is a cross-sectional view of another type of suspended dual-chamber air pump device shown in Figure 12;

[0052] Figure 14 is a cross-sectional view of the sixth type of suspended dual-chamber air pump device provided in the embodiment;

[0053] Figure 15 is a cross-sectional view of a suspended dual-chamber air pump device shown in Figure 14.

[0054] Figure 16 is a cross-sectional view of another type of suspended dual-chamber air pump device shown in Figure 14.

[0055] Figure 17 is a structural schematic diagram of the seventh type of suspended dual-chamber air pump device provided in the embodiment;

[0056] Figure 18 is a cross-sectional view of the suspended dual-chamber air pump device shown in Figure 17;

[0057] Figure 19 is a schematic diagram of airflow fluctuations when no overflow device is installed, as shown in Figure 17.

[0058] Figure 20 is a schematic diagram of airflow fluctuation when the overflow device is set as shown in Figure 17;

[0059] Figure 21 is a structural schematic diagram of the eighth type of suspended dual-chamber air pump device provided in the embodiment;

[0060] Figure 22 is a structural schematic diagram of the ninth type of suspended dual-chamber air pump device provided in the embodiment;

[0061] Figure 23 is a schematic diagram of a suspended inverted exhaust air pump provided in the embodiment;

[0062] Figure 24 is an exploded view of the suspended inverted exhaust gas pump shown in Figure 23;

[0063] Figure 25 is an enlarged schematic diagram of the gas distribution assembly in the suspended inverted outlet gas pump shown in Figure 24;

[0064] Figure 26 is a front view of the suspended inverted exhaust air pump shown in Figure 23;

[0065] Figure 27 is a cross-sectional view of the suspended inverted exhaust air pump shown in Figure 26 in the AA direction;

[0066] Figure 28 is a cross-sectional view of the suspended inverted exhaust air pump shown in Figure 26 in the BB direction;

[0067] Figure 29 is an internal schematic diagram of the suspended inverted exhaust air pump shown in Figure 23;

[0068] Figure 30 is an internal schematic diagram of another suspended inverted exhaust air pump provided in the embodiment;

[0069] Figure 31 is an internal schematic diagram of another suspended inverted air pump provided in the embodiment;

[0070] Figure 32 is an internal schematic diagram of another suspended inverted exhaust air pump provided in the embodiment.

[0071] Reference numerals: 1. Outer shell; 2. Air outlet; 3. Suspension device; 4. Soft sealing membrane; 5. First cavity; 6. Second cavity; 7. Drive mechanism; 8. Actuator; 9. Gas distribution assembly; 10. Actuating chamber; 11. Gas distribution chamber; 12. Air inlet; 13. Upper shell; 14. Lower shell; 15. Gas distribution cushion; 16. Gas distribution top cover; 17. Gas distribution bottom cover; 18. First air guide section; 19. Second air guide section; 20. Third air guide section; 21. First air inlet section; 22. First air outlet section; 23. Second air inlet section; 24. Second air outlet section 25. Air supply unit; 26. Overflow device; 27. Air outlet; 28. Drive unit; 29. ​​Rotating component; 30. Extrusion component; 31. Base; 32. Mounting seat; 33. Drive shaft; 34. Swinging component; 35. Connecting part; 36. First limiting part; 37. Partition wall; 38. Air guide chamber; 39. Mounting hole; 40. Air passage hole; 41. Air barrier; 42. Elastic air barrier; 43. Second limiting part; 44. Third limiting part; 45. Vibration damping support; 46. Extension part; 47. Fourth limiting part; 48. Air pipe;

[0072] 61. Outer shell; 62. Air inlet; 63. Air outlet; 64. Suspension device; 65. Soft sealing membrane; 66. First cavity; 67. Second cavity; 68. Drive mechanism; 69. Actuator; 610. Gas distribution assembly; 611. Actuation chamber; 612. Gas distribution passage; 613. Gas distribution cavity; 614. Gas distribution cushion; 615. First air guide section; 616. Gas distribution top cover; 617. Second air guide section; 618. Gas distribution bottom cover; 619. Third air guide section; 620. First air inlet section; 621. First air outlet section; 622. Second air inlet section; 623. Second air outlet section; 624. Mounting hole; 625. Air passage 626. Hole; 627. Air-blocking component; 628. Elastic air-blocking part; 629. Upper housing; 630. Lower housing; 631. Air inlet; 632. Air outlet; 633. First snap-fit ​​part; 633. Second snap-fit ​​part; 634. Elastic snap-fit ​​component; 635. Drive device; 636. Rotating component; 637. Pressing component; 638. Drive shaft; 639. Swinging component; 640. Connecting part; 641. Mounting base; 642. Base; 643. Connecting component; 644. Limiting part; 645. Partition wall; 646. Air guide chamber; 647. Air pipe; 648. Lead wire; 649. Transfer chamber; 650. Exhaust port. Detailed Implementation

[0073] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant disclosure and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the disclosure are shown in the accompanying drawings.

[0074] It should be noted that, unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other. This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0075] Firstly, conventional air pumps typically have the pump body installed inside a housing. Because this type of air pump has multiple points of contact between the pump body and the inner wall of the housing, the vibrations generated during operation are transmitted to the housing through these connections, causing noise and affecting passenger comfort. Furthermore, the installation method of conventional air pumps is cumbersome, making it inconvenient to install the pump body inside the housing and prone to installation errors that could affect normal use. Therefore, this disclosure addresses these problems by proposing a suspended dual-chamber air pump device.

[0076] Please refer to Figures 1-7. This disclosure provides a suspended dual-chamber air pump device, including:

[0077] The housing 1 has an installation space inside, and the housing 1 is provided with an air outlet 2 connected to the installation space. The air pump assembly is suspended in the installation space by a hanger 3.

[0078] A soft sealing membrane 4 is disposed within the installation space. One end of the soft sealing membrane 4 is connected to the outer shell 1, and the other end is connected to the air pump assembly. It is configured to divide the installation space into a first cavity 5 and a second cavity 6. The air pump assembly includes an air inlet end and an air outlet end. The air path from the air inlet end to the air outlet end is unidirectional. The air inlet end is located in the first cavity 5, and the air outlet end is located in the second cavity 6. The air outlet end is connected to the air outlet 2 through the second cavity 6.

[0079] The air pump assembly also includes a drive mechanism 7 and at least one actuator 8, the drive mechanism 7 and actuator 8 being configured to pressurize gas drawn in from the air inlet.

[0080] Optionally, the interior of the outer shell 1 is hollow to form an installation space, and an air outlet 2 is provided on the outer shell 1. The air outlet 2 connects the installation space and the outside of the outer shell 1. An air tube 48 can be connected to the air outlet 2, as shown in Figure 6. It is configured to connect with an air bag outside the outer shell 1 through the air tube 48. By repeatedly inflating the air bag, the air bag expands and contracts regularly, thereby achieving a massage effect. In this embodiment, the air outlet 2 is an opening of the air nozzle 26 on the outer shell 1 at the end away from the outer shell 1. An air pump assembly is installed within the installation space. The air pump assembly is configured to inflate an air bag outside the outer casing 1 through an air outlet 2. The air pump assembly is installed to the outer casing 1 via a suspension device 3. The suspension device 3 connects the top of the air pump assembly to the inner top wall of the outer casing 1, suspending the air pump assembly within the installation space. The outer casing 1 is designed to protect the air pump assembly and to prevent the transmission of noise generated during operation. The air pump assembly does not directly contact the outer casing 1, reducing the number of contact points and thus reducing the path of vibration transmission between the air pump assembly and the outer casing 1 during operation. This prevents vibration from being transmitted to the outer casing 1, reducing noise generated by vibration. Furthermore, the suspension device 3 can be made of an elastic material, reducing the stiffness of the contact points between the air pump assembly and the outer casing, further reducing the vibration transmitted to the outer casing 1 during operation. Since the outer wall of the air pump assembly is not tightly covered by the outer casing 1, it facilitates heat dissipation during operation. In addition, the use of the suspension device 3 reduces installation difficulty and minimizes installation errors.

[0081] As shown in Figures 6 and 7, a soft sealing membrane 4 is also provided within the installation space. The soft sealing membrane 4 is located between the side wall of the air pump assembly and the inner side wall of the outer shell 1, connecting the air pump assembly and the outer shell 1, thereby dividing the installation space into a first cavity 5 and a second cavity 6, wherein the second cavity 6 is connected to the air outlet 2. The air pump assembly is provided with an air inlet end and an air outlet end. The air inlet end is connected to the first cavity 5, and the air outlet end is connected to the second cavity 6. When the air pump assembly is working, air is introduced into the first cavity 5 through the air inlet end and air is discharged into the second cavity 6 through the air outlet end, thereby inflating the air bag through the air outlet 2.

[0082] Optionally, as shown in Figure 2, the air pump assembly further includes a drive mechanism 7 and at least one actuator 8. The actuator 8 is elastic; by repeatedly squeezing the actuator 8 through the drive mechanism 7, the actuator 8 can pressurize the gas entering the air pump assembly, thereby inflating the air bag. Optionally, the actuator 8 is a cup. The air pump assembly has unidirectional airflow from the inlet end to the outlet end. Each time the drive mechanism 7 squeezes the actuator 8, the gas in the air pump assembly is discharged through the outlet end. When the drive mechanism 7 does not squeeze the actuator 8, the actuator 8 is driven back to its original position by the drive mechanism 7, thereby allowing gas to enter the air pump assembly from the inlet end. In this embodiment, there are four actuators 8, which are circumferentially distributed around the axis of the air pump assembly and installed through the mounting base 31. When the drive mechanism 7 is working, it repeatedly squeezes the four actuators 8 in sequence, so that the four actuators 8 pressurize the gas in sequence, increasing the inflation frequency of the air bag, and thus increasing the massage frequency.

[0083] Optionally, the drive mechanism 7 includes a drive device 27, a rotating member 28, and a pressing member 29. The rotating member 28 is rotatably disposed in the first cavity 5 and is drive-connected to the output shaft of the drive device 27. The drive device 27 can be a motor and is mounted on the mounting base 31 via the base 30. The pressing member 29 includes a drive shaft 32 and a swing member 33 connected to one end of the drive shaft 32. The free end of the drive shaft 32 is drive-connected to the rotating member 28. The swing member 33 is provided with a connecting part 34 on its periphery and is sleeved on the actuating member 8.

[0084] Optionally, as shown in Figure 2, the rotating component 28 is a torsion shaft, the oscillating component 33 is a swing disk, and the connecting part 34 is provided on the outer periphery of the oscillating component 33. The connecting part 34 is annular and sleeved at the extension position of the actuating component 8, and is fixed to the actuating component 8. The rotating component 28 and the oscillating component 33 are both coaxially arranged with the driving device 27. The rotating component 28 is connected to the output shaft of the driving device 27. A hole is eccentrically provided on the top surface of the rotating component 28. One end of the transmission shaft 32 extends into the hole and can rotate relative to the hole. The rotation direction is around the axis of the transmission shaft 32 itself. The transmission shaft 32 is inclined towards the axis of the oscillating component 33, and the other end is fixedly connected to the center of the oscillating component 33.

[0085] When the drive device 27 rotates, it drives the rotating member 28 to rotate around the axis of the drive device 27. When the rotating member 28 rotates, it drives the transmission shaft 32 to make a circular motion around the axis of the drive device 27, which in turn causes the swing member 33 to rotate with the transmission shaft 32. The connecting part 34 located on the periphery of the swing member 33 swings up and down along the vertical direction in Figure 2, which in turn repeatedly squeezes the actuator 8 so that the actuator 8 switches between the natural state and the compressed state.

[0086] Optionally, the air pump assembly further includes an air distribution assembly 9, on which at least one air distribution passage is formed. The actuator 8 cooperates with the air distribution assembly 9 to form an actuation chamber 10, the volume of which is variable. An air distribution passage connects an actuation chamber 10 and a second chamber 6, and the air distribution passage is unidirectionally connected to the actuation chamber 10. The air distribution assembly 9 also forms at least one air distribution chamber 11, which connects an actuation chamber 10 and a first chamber 5, and the air distribution chamber 11 is unidirectionally connected to the actuation chamber 10. An air inlet 12 is provided on the outer casing 1 to connect the first chamber 5 and the outside.

[0087] Optionally, the air pump assembly further includes an air distribution assembly 9, which is configured to distribute air between the first chamber 5 and each actuator 8, and also to distribute air between each actuator 8 and the second chamber 6. The actuator 8 is located on the side of the air distribution assembly 9 away from the air outlet 2, and the drive mechanism 7 is located on the side of the actuation chamber 10 away from the air distribution assembly 9. The actuation chamber 8 is pressed and covered by the drive mechanism 7 onto the air distribution assembly 9, forming the actuation chamber 10 in cooperation with the air distribution assembly 9. The actuation chambers 10 are not interconnected. When the drive mechanism 7 presses the actuator 8, the actuation chamber 10 is compressed; when the drive mechanism 7 does not press the actuator 8, the actuation chamber 10 expands. Each gas distribution assembly 9 has a gas distribution passage, which corresponds one-to-one with the actuator 8. In addition, each gas distribution assembly 9 also has a gas distribution chamber 11, which corresponds one-to-one with the gas distribution passage. Each gas distribution passage connects the first cavity 5 to a gas distribution chamber 11 and connects each gas distribution chamber 11 to a corresponding actuator chamber 10. The gas distribution chamber 11 flows unidirectionally to the actuator chamber 10, preventing gas from being discharged from the inlet when the actuator chamber 10 is compressed, thus avoiding gas returning from the gas distribution chamber 11 to the first cavity 5 and affecting inflation efficiency. To facilitate air intake into the first cavity 5, the outer shell 1 also has an air inlet 12, which connects the first cavity 5 to the outside of the outer shell 1. When gas in the first cavity 5 is drawn into the air pump assembly, gas from outside the outer shell 1 is supplied to the first cavity 5 through the air inlet 12.

[0088] Optionally, the outer casing 1 includes a detachably connected upper casing 13 and a lower casing 14, with an air inlet 12 on the lower casing 14 and an air outlet 2 on the upper casing 13; a soft sealing membrane 4 is sandwiched between the upper casing 13 and the lower casing 14.

[0089] Optionally, as shown in Figures 6 and 7, the outer shell 1 consists of an upper shell 13 and a lower shell 14. In this embodiment, the upper shell 13 and the lower shell 14 are detachably connected by a snap-fit ​​method. In other embodiments, the upper shell 13 and the lower shell 14 can also be installed by screwing, bonding, or other methods. After the upper shell 13 and the lower shell 14 are installed, a snap-fit ​​groove is formed between the upper shell 13 and the lower shell 14. The outer side of the soft sealing membrane 4 is provided with a snap-fit ​​part corresponding to the snap-fit ​​groove. The soft sealing membrane 4 is connected to the outer shell 1 by snap-fitting the snap-fit ​​part with the snap-fit ​​groove. The soft sealing membrane 4 is adapted to the shape of the outer shell 1. The soft sealing membrane 4 is pressed tightly onto the inner wall of the outer shell 1 by gas extrusion, thereby dividing the installation space into two parts: a first cavity 5 and a second cavity 6, and sealing can be achieved between the first cavity 5 and the second cavity 6. The first cavity 5 is formed on the side near the lower housing 14, and the second cavity 6 is formed on the side near the upper housing 13. The air inlet 12 is opened on the lower housing 14 and the air inlet 12 is opened on the upper housing 13, so as to facilitate the intake of air into the first cavity 5 and the exhaust of air out of the second cavity 6.

[0090] Optionally, the valve train 9 includes:

[0091] The air cushion 15 is elastic and has at least one first air guide portion 18.

[0092] The air distribution top cover 16 is located on the side of the air distribution pad 15 near the air outlet 2. After the air distribution top cover 16 and the air distribution pad 15 are closed, an air distribution cavity 11 is formed. The air distribution top cover 16 is provided with at least one second air guide part 19, which is not connected to the air distribution cavity 11.

[0093] The air distribution bottom cover 17 is located on the side of the air distribution pad 15 away from the air outlet 2. At least one third air guide part 20 is provided on the air distribution bottom cover 17. The third air guide part 20, the second air guide part 19 and the first air guide part 18 are interconnected and configured to connect the actuation chamber 10 and the second chamber 6.

[0094] Optionally, as shown in Figure 3, the air distribution assembly 9 consists of three parts: an air distribution cushion 15, an air distribution top cover 16, and an air distribution bottom cover 17. The air distribution cushion 15 is elastic. The air distribution top cover 16 is fitted tightly against the side of the air distribution cushion 15 closest to the air outlet 2, and the air distribution bottom cover 17 is fitted tightly against the side of the air distribution cushion 15 furthest from the air outlet 2. The air distribution cushion 15, the air distribution top cover 16, and the air distribution bottom cover 17 are connected by connectors 35. The connectors 35 are rod-shaped and pass through the air distribution top cover 16, the air distribution cushion 15, and the air distribution bottom cover 17 in sequence to assemble the air distribution assembly 9. In this embodiment, the air distribution assembly 9 is fixed by four connectors 35. It should be noted that the through hole of the connector 35 through the air distribution top cover 16 is not connected to the air distribution cavity 11. The front end of the connector 35 is also provided with a first limiting part 36. The connector 35 also uses the first limiting part 36 to tighten and fix the drive mechanism 7 and the air distribution bottom cover 17, thereby making the actuator 8 close to the air distribution bottom cover 17. The air distribution top cover 16 is provided with a partition wall 37 on the side near the air distribution pad 15. After the air distribution top cover 16 and the air distribution pad 15 are closed, the partition wall 37 and the side wall of the air distribution top cover 16 cooperate to separate at least two non-communicating areas. The at least two areas include at least one air distribution cavity 11. The area outside the air distribution cavity 11 forms an air guide cavity 38. A second air guide part 19 is provided on the air distribution top cover 16 at the position corresponding to the air guide cavity 38. The second air guide part 19 is a through hole opened on the air distribution top cover 16. The second air guide part 19 connects the air guide cavity 38 and the second cavity. Body 6, the second air guide 19 serves as the air outlet of the air pump assembly; the air distribution pad 15 is provided with a first air guide 18 corresponding to the position of each actuation chamber 10, the first air guide 18 is a through hole opened on the air distribution pad 15, the first air guide 18 connects to the air guide chamber 38; the air distribution bottom cover 17 is provided with a third air guide 20 corresponding to the position of each actuation chamber 10, the third air guide 20 is a through hole opened on the air distribution bottom cover 17, the third air guide 20 connects the actuation chamber 10 and the first air guide 18, the third air guide 20 serves as the air inlet of the air pump assembly. By setting the first air guide 18 and the second air guide 19, each actuation chamber 10 is connected to the air guide chamber 38. Then, by setting the second air guide 19, the air guide chamber 38 is connected to the second cavity 6, thereby realizing the connection between each actuation chamber 10 and the second cavity 6. When the actuation chamber 10 is compressed, the gas in the actuation chamber 10 passes through the third air guide 20, the first air guide 18, the air guide chamber 38 and the second air guide 19 to the second cavity 6 in sequence.

[0095] Optionally, the air distribution passage includes a first air inlet 21, a first air outlet 22, a second air inlet 23, and a second air outlet 24. The first air inlet 21 and the first air outlet 22 are disposed on the air distribution pad 15, and the second air inlet 23 and the second air outlet 24 are disposed on the air distribution bottom cover 17. The second air inlet 23 is connected to the first air inlet 21, and the air distribution chamber 11 is connected to the first cavity 5 through the second air inlet 23 and the first air inlet 21. The second air outlet 24 is connected to the first air outlet 22, and the air distribution chamber 11 is connected to the actuation chamber 10 through the second air outlet 24 and the first air outlet 22. The second air outlet 24 is unidirectionally connected to the actuation chamber 10.

[0096] Optionally, a gas distribution passage is formed on the gas distribution assembly 9. The gas distribution passage consists of a first air inlet 21, a first air outlet 22, a second air inlet 23, and a second air outlet 24, as shown in Figure 3. The first air inlet 21 and the first air outlet 22 are through holes formed on the gas distribution pad 15, the second air inlet 23 is a through hole formed on the gas distribution bottom cover 17, and the second air outlet 24 is located on the gas distribution bottom cover 17 and unidirectionally flows into the actuation chamber 10, thus realizing the gas distribution chamber 11. The actuation chamber 10 is unidirectionally connected; the first air inlet 21 and the second air inlet 23 are interconnected and configured to connect the first cavity 5 and the air guide cavity 38, and the first air outlet 22 and the second air outlet 24 are interconnected and configured to connect the air guide cavity 38 and the corresponding actuation chamber 10; when the actuation chamber 10 is compressed, the gas in the first cavity 5 passes sequentially through the second air inlet 23, the first air inlet 21, the air distribution cavity 11, the first air outlet 22 and the second air outlet 24 to the actuation chamber 10.

[0097] Optionally, the second air outlet 24 includes a mounting hole 39 and a plurality of air passage holes 40 disposed around the mounting hole 39. An air-blocking component 41 is installed in the mounting hole 39. The air-blocking component 41 has an elastic air-blocking part 42 on the side of the air distribution bottom cover 17 away from the air distribution pad 15. The elastic air-blocking part 42 abuts against the air distribution bottom plate. When air is guided from the air distribution chamber 11 to the actuation chamber 10, the elastic air-blocking part 42 opens the air passage holes 40. When air is guided from the actuation chamber 10 to the air distribution chamber 11, the elastic air-blocking part 42 closes the air passage holes 40.

[0098] In this embodiment, the unidirectional ventilation of the second air outlet 24 is implemented as follows: The second air outlet 24 consists of a mounting hole 39 with a relatively large diameter and multiple air passages 40 with relatively small diameters. Both the mounting hole 39 and the air passages 40 penetrate the air distribution bottom cover 17. The multiple air passages 40 are arranged circumferentially on the outer periphery of the mounting hole 39. An air-blocking component 41 is installed in the mounting hole 39. The air-blocking component 41 is elastic. One end of the air-blocking component 41 is provided with an elastic air-blocking part 42. When the air-blocking component 41 is installed in the mounting hole 39, it blocks the mounting hole 39. The elastic air-blocking part 42 is located on the side of the air distribution bottom cover 17 away from the air distribution pad 15. The radial dimension of the elastic air-blocking part 42 is sufficient to cover all the air passages 40. The side of the elastic air-blocking part 42 near the air distribution bottom cover 17 forms an arc surface facing the air distribution bottom cover 17. The air-blocking component 41 can be selected as an umbrella nail as shown in Figure 3. When the actuator cavity 10 expands, the air pressure inside the actuator cavity 10 decreases. The gas in the gas distribution cavity 11 passes through the first gas outlet 22 and then squeezes the elastic gas barrier 42 through the gas passage 40. At this time, since the elastic gas barrier 42 is not blocked, the elastic gas barrier 42 opens the gas passage 40, allowing gas to enter the actuator cavity 10. When the actuator cavity 10 is compressed, the air pressure inside the actuator cavity 10 increases, and the gas in the actuator cavity 10 is discharged to the second cavity 6. At the position of the elastic gas barrier 42, the gas pressurizes the elastic gas barrier 42 to press against the gas distribution bottom cover 17 to close the gas passage 40, thereby realizing one-way gas flow.

[0099] Optionally, the tensioner 3 penetrates the air distribution top cover 16 and the upper cover body. The tensioner 3 includes a second limiting part 43 and a third limiting part 44. The air distribution top cover 16 is engaged with the second limiting part 43, and the upper cover body is engaged with the third limiting part 44.

[0100] In this embodiment, the tensioner 3 can be a solid rubber rivet. The center of the air distribution top cover 16 is provided with a through hole corresponding to the second limiting part 43 of the tensioner 3, and the center of the upper cover is provided with a through hole corresponding to the third limiting part 44 of the tensioner 3. The air pump assembly is suspended in the installation space by the tensioner 3, thereby reducing the vibration transmission path between the air pump assembly and the outer shell 1. Since the tensioner 3 is made of elastic material, it can further absorb the vibration of the air pump assembly, thereby reducing noise.

[0101] Optionally, the soft sealing membrane 4 is disposed on the outer periphery of the air distribution cushion 15 and is an integral structure with the air distribution cushion 15.

[0102] In this embodiment, the soft sealing membrane 4 and the air distribution cushion 15 are an integral structure. The soft sealing membrane 4 is formed on the outer periphery of the air distribution cushion 15. In addition to sealing the space between the first cavity 5 and the second cavity 6, the soft sealing membrane 4 also plays a supporting role in fixing the air pump assembly to the outer shell 1, thereby improving the stability of the air pump assembly in the installation space. Because the soft sealing membrane 4 is elastic, it can absorb the vibration generated by the air pump assembly during operation, preventing the vibration generated by the air pump assembly from being transmitted to the outer shell 1.

[0103] In an optional embodiment, the air outlet 26 is located at the center of the upper housing 13, and the air pump assembly is connected to the housing 1 by at least two tensioners 3, as shown in Figures 8 and 9. During installation, after the tensioners 3 connect the air pump assembly to the housing 1, the portion of the tensioners 3 extending out of the upper housing 13 is cut off.

[0104] In an optional embodiment, the tensioner 3 does not penetrate the upper housing 13 when connected to the upper housing 13. The top of the upper housing 13 is provided with an installation groove. The second limiting part 43 on the tensioner 3 has an I-shaped structure, as shown in Figure 10. The tensioner 3 is connected to the upper housing 13 by snapping the second limiting part 43 into the installation groove, without the need to open a through hole on the upper housing 13.

[0105] In an alternative embodiment, the tensioner 3 is a hollow structure. Optionally, the tensioner 3 is hollow inside, and the end connected to the air pump assembly is not connected, as shown in FIG11. The hollow tensioner 3 further improves the vibration reduction performance of the tensioner 3.

[0106] In an alternative embodiment, the soft sealing membrane 4 extends further toward the upper housing 13 on the side near the top of the upper housing 13 and is connected to the upper housing 13.

[0107] Optionally, in addition to being sandwiched between the upper housing 13 and the lower housing 14, the soft sealing membrane 4 is also connected to the upper housing 13. As shown in Figures 12 and 13, the upper housing 13 has multiple through holes on its outer periphery of the top surface. The soft sealing membrane 4 has multiple extensions 46 extending upwards from the upper housing 13 on its side near the upper housing 13. The extensions 46 pass through the through holes on the top surface of the upper housing 13, and a fourth limiting part 47 is provided at one end of the extension 46 passing through the through holes on the top surface of the upper housing 13. The fourth limiting part 47 engages with the upper housing 13. The extensions 46 and the fourth limiting part 47 are integral with the soft sealing membrane 4 and are elastic. By providing the extensions 46 and the fourth limiting part 47, the air pump assembly can be further connected and fixed to the housing 1, improving the stability of the air pump assembly.

[0108] In an alternative embodiment, the soft sealing membrane 4 is mounted on the outer periphery of the drive mechanism 7.

[0109] Optionally, the soft sealing membrane 4 is still sandwiched between the upper housing 13 and the lower housing 14, but the connection with the air pump assembly is not integrally connected with the air distribution cushion 15. Instead, it is sleeved on the side wall of the mounting base 31 as shown in Figure 14, or sleeved between the mounting base 31 and the drive device 27 and snapped in place as shown in Figure 15, or sleeved between the base 30 and the mounting base 31 and snapped in place as shown in Figure 16.

[0110] In an optional embodiment, the upper housing 13 is further provided with an overflow device 25, which connects the second cavity 6 with the outside of the outer shell 1.

[0111] Optionally, as shown in Figures 16 and 17, the overflow device 25 is located at the outer edge of the upper housing 13. Optionally, the overflow device 25 is an overflow valve. Referring to Figures 18 and 19, the horizontal axis T represents time, and the vertical axis A represents the airflow fluctuation amplitude. It can be seen from Figures 18 and 19 that the overflow device 25 effectively ensures the stability of the output airflow.

[0112] In an alternative embodiment, a shock-absorbing support 45 is further provided in the installation space. The shock-absorbing support 45 is elastic and is located between the bottom of the air pump assembly and the outer casing 1.

[0113] Optionally, as shown in Figure 21, the vibration damping support 45 is sleeved on the bottom end of the drive device 27 and fixedly installed on the inner bottom wall of the lower housing 14. The vibration damping support 45 can work together with the tensioner 3 to improve the stability of the air pump assembly, and the vibration damping support 45 also plays a role in damping the air pump assembly.

[0114] In an optional embodiment, the tensioner 3 is configured as a hollow structure with both ends connected. The end of the tensioner 3 closest to the air pump assembly is connected to the air guide chamber 38. In this embodiment, the upper housing 13 does not have a separate air outlet 26; the air outlet 2 is integrated into the hollow position of the tensioner 3, as shown in Figure 22. This configuration simplifies the structure of the outer shell 1 and makes it easier to manufacture. Air discharged from the air guide chamber 38 can be directly discharged to the air bag through the tensioner 3. It should be noted that in this embodiment, the second cavity 6 does not serve as a transitional element for airflow.

[0115] In summary, this disclosure provides a suspended dual-chamber air pump device. The air pump assembly is suspended within the installation space of the housing 1 by a suspension device 3, effectively reducing contact between the air pump assembly and the housing 1. This prevents vibrations generated during air pump assembly operation from being directly transmitted to the housing 1, significantly reducing the resulting vibrations and associated noise. Furthermore, installation via the suspension device 3 is more convenient and effectively reduces installation errors. By using a soft sealing membrane 4 to divide the installation space into a first chamber 5 and a second chamber 6, sufficient buffering is provided before and after the gas enters the air pump assembly. Within the first chamber 5, the gas accumulates smoothly. The first chamber 5 provides a stable air source for the air pump assembly's inlet, while the high-pressure gas discharged from the air pump assembly's outlet is smoothly transitioned within the second chamber 6, effectively avoiding airflow fluctuations when directly supplying air through the outlet 2, ensuring the continuity and stability of gas output. In addition, the soft sealing membrane 4, connecting the air pump assembly and the housing 1, also helps maintain the stability of the air pump assembly within the housing 1 to a certain extent. By setting the drive mechanism 7 and at least one actuator 8, not only is efficient pressurization capability provided for the inhaled gas, but the separation of the first chamber 5 and the second chamber 6 also optimizes the gas flow path, reduces energy loss, and improves overall operating efficiency.

[0116] Secondly, since traditional air pumps typically intake air from the bottom and exhaust air from the top, when installed inside a car seat, the specific installation requirements result in significant airflow fluctuations within the confined space of the seat. Therefore, this disclosure addresses these issues by proposing a suspended inverted exhaust air pump.

[0117] Please refer to Figures 23-29. This disclosure provides a suspended inverted exhaust air pump, installed inside a car seat, including:

[0118] The outer casing 61 has an installation space inside. The top of the outer casing 61 is provided with an air inlet 62, and the bottom or side wall of the outer casing 61 is provided with an air outlet 63.

[0119] An air pump assembly, which is suspended in the installation space by a hanger 64;

[0120] A soft sealing membrane 65 is disposed within the installation space. One end of the soft sealing membrane 65 is connected to the outer shell 61, and the other end is connected to the air pump assembly. It is configured to divide the installation space into a first cavity 66 and a second cavity 67. The first cavity 66 is connected to the air outlet 63, and the second cavity 67 is connected to the air inlet 62. The air pump assembly includes an air inlet end and an air outlet end. The air inlet end is positioned relative to the air outlet end and close to the headrest of the car seat. The air path from the air inlet end to the air outlet end is unidirectional. The air inlet end is located in the second cavity 67, and the air outlet end is located in the first cavity 66. The air outlet end is connected to the air outlet 63 through the first cavity 66.

[0121] The air pump assembly also includes a drive mechanism 68 and at least one actuator 69, the drive mechanism 68 and actuator 69 being configured to pressurize gas drawn in from the air inlet.

[0122] Optionally, the interior of the housing 61 is hollow to form an installation space. Both the air inlet 62 and the air outlet 63 are connected to the installation space. The air inlet 62 is located at the top of the housing 61 and is configured to allow air to enter the installation space. The air outlet 63 is located at the bottom or side wall of the housing 61 and is configured to connect to an external air bag via an air pipe 647 to repeatedly inflate the air bag. The positions of the air inlet 62 and the air outlet 63 form an inverted air outlet type air pump. The inverted air outlet type air pump can meet some special installation requirements, such as scenarios where it is inconvenient to invert a traditional air pump in a confined space due to air passage limitations.

[0123] The installation space is equipped with a soft sealing membrane 65 and an air pump assembly, wherein the air pump assembly is the core component of the air pump. The air pump assembly includes an air inlet end configured for air intake and an air outlet end configured for air exhaust. The air inlet end is located on the side near the air inlet 62, and the air outlet end is located on the side near the exhaust port 650. The air pump assembly is configured to pressurize the gas entering through the air inlet 62 and then discharge it through the exhaust port 650. In this embodiment, when the air pump is installed inside the car seat, the air pump can be installed in the seat cushion or backrest of the car seat. Regardless of where the air pump is installed, due to the inverted setting of the air pump, the air inlet end is always located on the side near the headrest of the car seat relative to the air outlet end. The air pump assembly is connected to the housing 61 via a suspension device 64. One end of the suspension device 64 is connected to the upper housing 628, and the other end is connected to the air pump assembly. The suspension device 64 suspends the air pump assembly within the installation space, reducing the contact between the air pump assembly and the housing 61. This reduces the vibration generated by the air pump assembly during operation from being transmitted to the housing 61, thus reducing the noise caused by the vibration of the housing 61. Optionally, the suspension device 64 can be made of an elastic material, thereby reducing the stiffness at the contact point between the air pump assembly and the housing 61, further reducing the vibration transmitted to the housing 61 during operation. Preferably, the suspension device 64 is a rubber rivet. The soft sealing membrane 65 connects the air pump assembly and the housing 61 respectively. The soft sealing membrane 65 divides the installation space into a first cavity 66 and a second cavity 67. The first cavity 66 connects the air outlet and the air outlet 63, and the second cavity 67 connects the air inlet and the air inlet 62. In the second cavity 67, the gas entering through the air inlet 62 is fully buffered and the gas is able to accumulate smoothly, providing a stable gas supply to the air inlet of the air pump assembly. In the second cavity 67, the high-pressure gas discharged from the air outlet of the air pump assembly is able to transition smoothly, effectively avoiding airflow fluctuations when supplying gas directly through the air outlet 63, and ensuring the continuity and stability of gas output.

[0124] Optionally, the air pump assembly further includes an air distribution assembly 610, on which at least one air distribution passage 612 is formed. The actuator 69 cooperates with the air distribution assembly 610 to form an actuation chamber 611, the volume of which is variable. The air distribution assembly 610 also forms at least one air distribution chamber 613. An air distribution passage 612 connects an actuation chamber 611 and an air distribution chamber 613, and connects the air distribution chamber 613 to the first cavity 66.

[0125] Optionally, the air pump assembly includes a drive mechanism 68 and at least one actuator 69. The actuator 69 is elastic and has a variable-volume receiving space. The actuator 69 forms a sealed actuation cavity 611 by fastening it to the air distribution assembly 610. In this embodiment, there are four actuators 69, which are arranged around the axis of the air pump assembly. The drive mechanism 68 is connected to each of the four actuators 69. Optionally, the actuator 69 is a cup. The air distribution assembly 610 is located on the side of the air pump assembly near the air inlet 62. The air distribution assembly 610 has at least one air distribution passage 612 and at least one air distribution chamber 613. The number of air distribution passages 612 and air distribution chambers 613 is the same as the number of actuation chambers 611. In this embodiment, there are four air distribution passages 612 and four air distribution chambers 613. Each air distribution passage 612 is connected to one actuation chamber 611 and one air distribution chamber 613. Each air distribution passage 612 also connects the corresponding air distribution chamber 613 to the first cavity 66.

[0126] When the drive mechanism 68 operates, it repeatedly squeezes the four actuators 69 in sequence. When the actuators 69 are squeezed, the gas is pressurized in the actuation chamber 611. The pressurized gas enters the corresponding gas distribution chamber 613 through the gas distribution passage 612, and then exits from the gas distribution chamber 613 through the gas distribution passage 612 to the first space through the outlet end. After passing through the first space, it is discharged from the outlet 63. By acting sequentially with the four actuators 69, the inflation efficiency can be improved.

[0127] Optionally, the drive mechanism 68 includes a drive device 635, a rotating member 636, and a pressing member 637. The rotating member 636 is rotatably disposed in the first space and is drive-connected to the output shaft of the drive device 635. The drive device 635 may be a motor and is mounted on the mounting base 641 via a base 642. The pressing member 637 includes a drive shaft 638 and a swing member 639 connected to one end of the drive shaft 638. The free end of the drive shaft 638 is drive-connected to the rotating member 636. The swing member 639 is provided with a connecting part 640 on its periphery and the connecting part 640 is sleeved on the actuating member 69.

[0128] Optionally, as shown in Figure 24, the rotating component 636 is a torsion shaft, the oscillating component 639 is a swing disk, and the connecting part 640 is located on the outer periphery of the oscillating component 639. The connecting part 640 is annular and sleeved at the extension position of the actuating component 69, and is fixed to the actuating component 69. The rotating component 636 and the oscillating component 639 are both coaxially arranged with the driving device 635, and the driving device 635 is connected to an external power supply through a lead wire 648. The rotating component 636 is drivenly connected to the output shaft of the driving device 635. An eccentric hole is provided on the top surface of the rotating component 636. One end of the transmission shaft 638 extends into the hole and can rotate relative to the hole within the hole. The rotation direction is around the axis of the transmission shaft 638 itself. The transmission shaft 638 is inclined towards the axis of the oscillating component 639, and the other end is fixedly connected to the center of the oscillating component 639.

[0129] When the drive device 635 rotates, it drives the rotating member 636 to rotate around the axis of the drive device 635. When the rotating member 636 rotates, it drives the transmission shaft 638 to make a circular motion around the axis of the drive device 635, which in turn causes the swing member 639 to rotate with the transmission shaft 638. The connecting part 640 located on the peripheral edge of the swing member 639 swings up and down along the vertical direction in Figure 24, which repeatedly squeezes the actuator 69 so that the actuator 69 switches between the natural state and the compressed state.

[0130] Optionally, the valve train 610 includes:

[0131] The air cushion 614 is elastic and has at least one first air guide portion 615.

[0132] The air distribution top cover 616 is located on the side of the air distribution pad 614 near the air inlet 62. After the air distribution top cover 616 and the air distribution pad 614 are closed, an air distribution cavity 613 is formed. The air distribution top cover 616 is provided with at least one second air guide part 617.

[0133] The air distribution bottom cover 618 is located on the side of the air distribution pad 614 away from the air inlet 62. At least one third air guide part 619 is provided on the air distribution bottom cover 618. The third air guide part 619, the second air guide part 617 and the first air guide part 615 cooperate to connect the actuation chamber 611 and the second chamber 67, and unidirectionally connect the second chamber 67 to the actuation chamber 611.

[0134] Optionally, as shown in Figures 24 and 25, the valve distribution assembly 610 consists of three parts: a valve distribution cushion 614, a valve distribution top cover 616, and a valve distribution bottom cover 618. The valve distribution cushion 614 is elastic. The valve distribution top cover 616 is fitted tightly against the side of the valve distribution cushion 614 near the air inlet 62, and the valve distribution bottom cover 618 is fitted tightly against the side of the valve distribution cushion 614 near the air outlet 63. The valve distribution cushion 614, the valve distribution top cover 616, and the valve distribution bottom cover 618 are connected by a connector 643. The connector 643 is rod-shaped and passes through the valve distribution top cover 616, the valve distribution cushion 614, and the valve distribution bottom cover 618 in sequence. The end of the connector 643 is provided with a limiting part 644. The end of the connector 643 also passes through the mounting base 641. The limiting part 644 tightly installs the mounting base 641 and the valve distribution bottom cover 618 together, so that the mounting base 641 presses the actuator 69 against the valve distribution bottom cover 618. It should be noted that the holes on the valve top cover 616 and the valve cushion 614 configured for the connecting piece 643 to pass through are not connected to the valve chamber 613.

[0135] A partition wall 645 is provided on the side of the valve top cover 616 near the valve cushion 614. After the valve top cover 616 and the valve cushion 614 are closed, the partition wall 645 and the side wall of the valve top cover 616 cooperate to separate at least two non-communicating areas. The area near the axis of the valve top cover 616 forms four air distribution chambers 613, and the area away from the axis of the valve top cover 616 forms four air guide chambers 646. A first air guide part 615 is provided on the valve cushion 614 at the position corresponding to the air guide chamber 646. The first air guide part 615 is a petal-shaped hole opened on the valve top cover 616 and communicates with the air guide chamber 646. A second air guide part 617 is provided on the valve top cover 616 at the position corresponding to the air guide chamber 646. The second air guide part 617 is a through hole opened on the valve top cover 616 and communicates with the air guide chamber 646. 7. Several protrusions are provided around the end near the air inlet 62; the third air guide 619 is a hole opened on the air distribution bottom cover 618. The third air guide 619 connects the first air guide 615 and the actuation chamber 611. The gas entering from the air inlet passes through the second air guide 617, the air guide chamber 646, the first air guide 615 and the third air guide 619 in sequence into the actuation chamber 611, and is then discharged through the air distribution passage 612 by the compression of the actuation chamber 611. The third air guide 619 is unidirectionally guided from the first air guide 615 to the actuation chamber 611 to avoid the gas flowing back to the air inlet during the compression of the actuation chamber 611, which would affect the inflation efficiency.

[0136] This embodiment provides an implementation method for achieving unidirectional airflow in the third air guide section 619, as detailed below:

[0137] Optionally, the third air guide 619 includes a mounting hole 624 and a plurality of air passages 625, the mounting hole 624 and the air passages 625 penetrating the air distribution bottom cover 618, and the plurality of air passages 625 being disposed around the mounting hole 624; an air-blocking component 626 is installed in the mounting hole 624, and the air-blocking component 626 has an elastic air-blocking part 627 on the side of the air distribution bottom cover 618 away from the air distribution pad 614, the elastic air-blocking part 627 abutting against the air distribution bottom cover 618; when air is guided from the second cavity 67 to the actuation cavity 611, the elastic air-blocking part 627 opens the air passages 625, and when air is guided from the actuation cavity 611 to the second cavity 67, the elastic air-blocking part 627 closes the air passages 625.

[0138] Optionally, the diameter of the mounting hole 624 is relatively larger than the diameter of the vent hole 625. Both the mounting hole 624 and the vent hole 625 penetrate the air distribution bottom cover 618. Multiple vent holes 625 are evenly distributed on the outer periphery of the vent hole 625. An air-blocking component 626 is installed in the mounting hole 624. The air-blocking component 626 is elastic. One end of the air-blocking component 626 is provided with an elastic air-blocking part 627. When the air-blocking component 626 is installed in the mounting hole 624, it blocks the mounting hole 624, thereby closing the mounting hole 624. The elastic air-blocking part 627 is located on the side of the air distribution bottom cover 618 near the air outlet 63. The radial dimension of the elastic air-blocking part 627 is sufficient to cover all the vent holes 625. The side of the elastic air-blocking part 627 near the air distribution bottom cover 618 forms an arc surface facing the air distribution bottom cover 618. The air-blocking component 626 can be selected as an umbrella nail as shown in Figure 25.

[0139] When the actuator cavity 611 expands, the air pressure inside the actuator cavity 611 decreases. The gas in the gas distribution cavity 613 passes through the first gas outlet 621 and then squeezes the elastic gas barrier 627 through the gas passage 625. At this time, since the elastic gas barrier 627 is not blocked, the elastic gas barrier 627 opens the gas passage 625, allowing gas to enter the actuator cavity 611. When the actuator cavity 611 is compressed, the air pressure inside the actuator cavity 611 increases, and the gas in the actuator cavity 611 is discharged to the second cavity 67. At the position of the elastic gas barrier 627, the gas is pressurized, causing the elastic gas barrier 627 to press against the gas distribution bottom cover 618 to close the gas passage 625, thereby realizing unidirectional gas flow.

[0140] Optionally, the air distribution passage 612 includes a first air inlet 620, a first air outlet 621, a second air inlet 622, and a second air outlet 623. The first air inlet 620 and the first air outlet 621 are disposed on and pass through the air distribution pad 614. The second air inlet 622 and the second air outlet 623 are disposed on and pass through the air distribution bottom cover 618. The second air inlet 622 and the first air inlet 620 cooperate to connect an air distribution chamber 613 and an actuation chamber 611. The first air outlet 621 and the second air outlet 623 cooperate to connect an actuation chamber 611 and a first cavity 66.

[0141] Optionally, the air distribution passage 612 includes two sections: one connecting the actuation chamber 611 and the air distribution chamber 613, and the other connecting the air distribution chamber 613 and the first cavity 66. The first air inlet 620 and the first air outlet 621 are through holes formed on the air distribution pad 614, and the second air inlet 622 and the second air outlet 623 are through holes formed on the air distribution bottom cover 618. The first air inlet 620 connects to the air distribution chamber 613, and the second air inlet 622 connects to the actuation chamber 611. The first air inlet 620 and the second air inlet 622 cooperate to form one section of the air distribution passage 612 connecting the actuation chamber 611 and the air distribution chamber 613, while the first air outlet 621 and the second air outlet 623 cooperate to form the other section of the air distribution passage 612 connecting the air distribution chamber 613 and the first cavity 66.

[0142] Optionally, a transfer chamber 649 is formed on the air pump assembly. The transfer chamber 649 is located between the second air outlet 623 and the first cavity 66. One end of the transfer chamber 649 is connected to the second air outlet 623, and the other end is connected to the first cavity 66 through the exhaust nozzle 50.

[0143] Optionally, after installation, the mounting base 641 and the base 642 form a hollow transfer cavity 649. The mounting base 641 is provided with multiple vent holes that communicate with each of the second air outlets 623. The vent holes connect the corresponding second air outlet 623 and the transfer cavity 649. The second air outlet 623 and the first cavity 66 are connected through the transfer cavity 649. The base 642 is provided with an exhaust nozzle 50 on its side wall. The exhaust nozzle 50 connects the transfer cavity 649 and the first cavity 66, and is configured to facilitate the discharge of gas from the transfer cavity 649 to the first cavity 66.

[0144] Optionally, the outer casing 61 includes a detachably connected upper casing 628 and a lower casing 629. The upper casing 628 is provided with an air inlet 630, and an air inlet 62 is formed on the air inlet 630. The lower casing 629 is provided with an air outlet 631, and an air outlet 63 is formed on the air outlet 631. A soft sealing membrane 65 is sandwiched between the upper casing 628 and the lower casing 629.

[0145] Optionally, the upper housing 628 and the lower housing 629 are detachably connected. Alternatively, in this embodiment, the upper housing 628 and the lower housing 629 are detachably connected by a snap-fit ​​mechanism. After installation, a snap-fit ​​groove is formed between the upper housing 628 and the lower housing 629. A soft sealing membrane 65 is sandwiched within this groove. The soft sealing membrane 65 is pressed against the outer shell 61 by the air pressure within the first cavity 66 and the second cavity 67, thereby dividing the installation space into two parts: the first cavity 66 and the second cavity 67, and sealing the space between them. The soft sealing membrane 65 also supports the air pump assembly, preventing it from shaking within the installation space and improving its stability during operation. Furthermore, due to the elasticity of the soft sealing membrane 65, the stiffness at the contact point between the air pump assembly and the outer shell 61 is reduced, further minimizing the transmission of vibration during air pump assembly operation.

[0146] An air inlet 62 is located at the top of the upper housing 628, and an air outlet 63 is located at the bottom or side wall of the lower housing 629. In this embodiment, an air inlet 630 is provided at the top of the upper housing 628, and the air inlet 62 is located inside the air inlet 630 and communicates with the second space. An air outlet 631 is provided at the bottom or side wall of the lower housing 629, and the air outlet 63 is located inside the air outlet 631. When the air pump is working, the air outlet 631 and the air bag are connected through an air pipe 647 to inflate the air bag.

[0147] Optionally, the tensioner 64 includes a first locking part 632 and a second locking part 633. The first locking part 632 is engaged with the air distribution top cover 616, and the second locking part 633 passes through the upper housing 628 and is engaged with the upper housing 628.

[0148] Optionally, a first locking part 632 is provided at one end of the tensioner 64, and a second locking part 633 is provided at the other end of the tensioner 64. A through hole corresponding to the first locking part 632 is provided on the air distribution top cover 616, and a through hole corresponding to the second locking part 633 is provided on the upper housing 628. The tensioner 64 passes through the air distribution top cover 616 and the upper housing 628, with the first locking part 632 engaging with the through hole on the air distribution top cover 616 and the second locking part 633 engaging with the through hole on the upper housing 628. By providing the tensioner 64, the air pump assembly is suspended inside the housing 61, reducing contact between the air pump assembly and the housing 61. In this embodiment, the tensioner 64 is a solid structure, and the end of the tensioner 64 placed outside the housing 61 after installation needs to be cut off with scissors.

[0149] Optionally, the empty volume of the second cavity 67 after the air pump assembly is installed is three times or more the volume of an actuation cavity 611.

[0150] Optionally, the first chamber 66 serves as a transfer chamber 649 for gas to be conducted from the gas distribution assembly 610 to the air outlet 63, which can achieve the purpose of balancing air pressure. By setting the empty volume of the first chamber 66 after the air pump assembly is installed to be three times or more than the volume of an actuation chamber 611, the function of balancing air pressure can be further improved.

[0151] In one alternative embodiment, the tensioner 64 is hollow inside and connected at both ends, and an air inlet 62 is formed inside the tensioner 64, extending into the second cavity 67 and directly connected to the air inlet end.

[0152] Optionally, as shown in Figure 30, the upper housing 628 does not have a separate air inlet 630. By making the suspension device 64 hollow and integrating the air inlet 62 into the suspension device 64, the suspension device 64 can achieve the purpose of suspending the air pump assembly without the need for a separate air inlet 630, thus facilitating the manufacturing of the upper housing 628. It should be noted that in this embodiment, only the first cavity 66 is configured for smooth gas transition, while the second cavity 67 is configured to accommodate the suspension device 64.

[0153] In one alternative embodiment, a resilient snap-fit ​​member 634 is snapped onto the bottom of the housing 61. One end of the resilient snap-fit ​​member 634 is snapped onto the bottom of the housing 61, and the other end is placed outside the housing 61. The resilient snap-fit ​​member 634 is hollow inside and connected at both ends, and an air outlet 63 is formed inside the resilient snap-fit ​​member 634.

[0154] Optionally, as shown in Figure 31, the lower housing 629 has an opening on its side wall or bottom. Instead of an air vent 631, an elastic snap-fit ​​member 634 is provided at the opening of the lower housing 629. The elastic snap-fit ​​member 634 is hollow, and the air vent 63 is integrated within it, eliminating the need for a separate air vent 631. Optionally, the elastic snap-fit ​​member 634 is a rubber rivet similar to the tensioner 64.

[0155] In an alternative embodiment, as shown in FIG32, the upper housing 628 does not have a separate air inlet 630, but the air inlet 62 is integrated into the tensioner 64 and configured as an air inlet. The lower housing 629 does not have a separate air outlet 631, but the air outlet 63 is integrated into the elastic snap fastener 634 and configured as an air outlet.

[0156] In summary, the suspended inverted air pump proposed in this disclosure, by placing the air inlet 62 on the top of the housing 61 and the air outlet 63 on the bottom or side wall of the housing 61, differs from existing air pumps, meets the installation requirements of special structures, and ensures easy assembly in confined spaces; by connecting an air bag to the air outlet 63 and repeatedly squeezing the actuator 69 through the drive mechanism 68, air can be injected into the air bag, thereby achieving a massage effect; by setting the air distribution passage 612 to one-way flow, the actuator 69 can be avoided. During compression, air is returned to the second chamber 67, thus avoiding poor inflation due to insufficient air supply to the actuator 69. By setting the first chamber 66 and the second chamber 67 for gas transition, the air pressure can be balanced, avoiding large fluctuations in the exhaust gas flow. By setting the tensioner 64 to fix the air distribution assembly 610, the contact between the air distribution assembly 610 and the outer shell 61 is reduced compared with the traditional assembly method, thereby reducing the vibration generated during operation transmitted to the outer shell 61 and avoiding noise generated by the vibration of the outer shell 61.

[0157] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions. Industrial applicability

[0158] This disclosure provides a suspended dual-chamber air pump device and a suspended inverted outlet air pump, which can reduce the contact between the air pump (air distribution) assembly and the housing, and prevent the vibration generated by the air pump (air distribution) assembly during operation from being directly transmitted to the housing, thereby significantly reducing the housing vibration and accompanying noise problems caused by it.

Claims

1. A suspended dual-chamber air pump device, characterized in that, include: The housing (1) has an installation space inside, and the housing (1) is provided with an air outlet (2) connected to the installation space. The air pump assembly is suspended in the installation space by a tensioner (3). A soft sealing membrane (4) is disposed in the installation space. One end of the soft sealing membrane (4) is connected to the outer shell (1), and the other end is connected to the air pump assembly. It is configured to divide the installation space into a first cavity (5) and a second cavity (6). The air pump assembly includes an air inlet and an air outlet. The air inlet is unidirectionally connected to the air outlet. The air inlet is located in the first cavity (5), and the air outlet is located in the second cavity (6). The air outlet is connected to the air outlet (2) through the second cavity (6). The air pump assembly further includes a drive mechanism (7) and at least one actuator (8), the drive mechanism (7) and the actuator (8) being configured to pressurize the gas drawn in from the air inlet.

2. The suspended dual-chamber air pump device according to claim 1, characterized in that, The air pump assembly further includes an air distribution assembly (9), on which at least one air distribution passage is formed. The actuator (8) cooperates with the air distribution assembly (9) to form an actuation chamber (10), the volume of which is variable. One of the air distribution passages connects one of the actuation chambers (10) and the second cavity (6), and the air distribution passage is unidirectionally connected to the actuation chamber (10). The air distribution assembly (9) also forms at least one air distribution chamber (11), which connects one of the actuation chambers (10) and the first cavity (5), and the air distribution chamber (11) is unidirectionally connected to the actuation chamber (10). The outer shell (1) is provided with an air inlet (12) connecting the first cavity (5) and the outside.

3. The suspended dual-chamber air pump device according to claim 2, characterized in that, The outer shell (1) includes a detachably connected upper shell (13) and lower shell (14), the air inlet (12) is opened on the lower shell (14), and the air outlet (2) is opened on the upper shell (13); the soft sealing membrane (4) is sandwiched between the upper shell (13) and the lower shell (14).

4. The suspended dual-chamber air pump device according to claim 3, characterized in that, The gas distribution assembly (9) includes: An air distribution cushion (15) is provided, the air distribution cushion (15) is elastic, and at least one first air guiding part (18) is provided on the air distribution cushion (15); A top cover (16) is provided on the side of the air distribution pad (15) near the air outlet (2). After the top cover (16) and the air distribution pad (15) are closed, the air distribution cavity (11) is formed. The top cover (16) is provided with at least one second air guide (19). The second air guide (19) is not connected to the air distribution cavity (11). A bottom cover (17) is provided on the side of the air distribution pad (15) away from the air outlet (2). At least one third air guide (20) is provided on the bottom cover (17). The third air guide (20), the second air guide (19) and the first air guide (18) are interconnected and configured to connect the actuation chamber (10) and the second chamber (6).

5. The suspended dual-chamber air pump device according to claim 4, characterized in that, The gas distribution passage includes a first air inlet (21), a first air outlet (22), a second air inlet (23), and a second air outlet (24). The first air inlet (21) and the first air outlet (22) are disposed on the gas distribution pad (15), and the second air inlet (23) and the second air outlet (24) are disposed on the gas distribution bottom cover (17). The second air inlet (23) is connected to the first air inlet (21), and the gas distribution chamber (11) is connected to the first cavity (5) through the second air inlet (23) and the first air inlet (21). The second air outlet (24) is connected to the first air outlet (22), and the gas distribution chamber (11) is connected to the actuation chamber (10) through the second air outlet (24) and the first air outlet (22). The second air outlet (24) is unidirectionally connected to the actuation chamber (10).

6. The suspended dual-chamber air pump device according to claim 5, characterized in that, The soft sealing membrane (4) is disposed on the outer periphery of the air distribution pad (15) and is an integral structure with the air distribution pad (15).

7. The suspended dual-chamber air pump device according to claim 5 or 6, characterized in that, The soft sealing film (4) is installed on the outer periphery of the driving mechanism (7), and the soft sealing film (4) is sleeved or snapped onto the driving mechanism (7).

8. The suspended dual-chamber air pump device according to claim 6 or 7, characterized in that, The soft sealing membrane (4) extends towards the upper housing (13) from the side near the top of the upper housing (13) and is connected to the upper housing (13).

9. The suspended dual-chamber air pump device according to claim 8, characterized in that, The upper housing (13) is also provided with an overflow device (25), which connects the second cavity (6) to the outside of the outer shell (1).

10. The suspended dual-chamber air pump device according to claim 8, characterized in that, The lifting device (3) is a hollow structure.

11. A suspended inverted air pump, installed inside a car seat, characterized in that, include: The outer casing (61) has an installation space inside, the top of the outer casing (61) is provided with an air inlet (62), and the bottom or side wall of the outer casing (61) is provided with an air outlet (63); An air pump assembly, which is suspended in the mounting space by a tensioner (64); A soft sealing membrane (65) is disposed in the installation space. One end of the soft sealing membrane (65) is connected to the outer shell (61), and the other end is connected to the air pump assembly. It is configured to divide the installation space into a first cavity (66) and a second cavity (67). The first cavity (66) is connected to the air outlet (63), and the second cavity (67) is connected to the air inlet (62). The air pump assembly includes an air inlet end and an air outlet end. The air inlet end is disposed near the headrest of the car seat relative to the air outlet end. The air path from the air inlet end to the air outlet end is unidirectional. The air inlet end is located in the second cavity (67), and the air outlet end is located in the first cavity (66). The air outlet end is connected to the air outlet (63) through the first cavity (66). The air pump assembly further includes a drive mechanism (68) and at least one actuator (69), the drive mechanism (68) and the actuator (69) being configured to pressurize gas drawn in from the air inlet.

12. The suspended inverted exhaust air pump according to claim 11, characterized in that, The air pump assembly further includes an air distribution assembly (610), on which at least one air distribution passage (612) is formed. The actuator (69) cooperates with the air distribution assembly (610) to form an actuation chamber (611), the volume of which is variable. The air distribution assembly (610) also forms at least one air distribution chamber (613). One air distribution passage (612) connects one actuation chamber (611) and one air distribution chamber (613), and connects the air distribution chamber (613) to the first cavity (66).

13. The suspended inverted exhaust air pump according to claim 12, characterized in that, The valve distribution assembly (610) includes: An air distribution cushion (614) is elastic and has at least one first air guide portion (615) on it. A top cover (616) is provided on the side of the air distribution pad (614) near the air inlet (62). The top cover (616) and the air distribution pad (614) are closed to form the air distribution cavity (613). The top cover (616) is provided with at least one second air guide part (617). A bottom cover (618) is provided on the side of the air distribution pad (614) away from the air inlet (62). At least one third air guide (619) is provided on the bottom cover (618). The third air guide (619), the second air guide (617) and the first air guide (615) cooperate to connect the actuation chamber (611) and the second cavity (67), and unidirectionally connect the second cavity (67) to the actuation chamber (611).

14. The suspended inverted exhaust air pump according to claim 13, characterized in that, The gas distribution passage (612) includes a first air inlet (620), a first air outlet (621), a second air inlet (622), and a second air outlet (623). The first air inlet (620) and the first air outlet (621) are disposed on the gas distribution pad (614) and penetrate the gas distribution pad (614). The second air inlet (622) and the second air outlet (623) are disposed on the gas distribution bottom cover (618) and penetrate the gas distribution bottom cover (618). The second air inlet (622) and the first air inlet (620) cooperate to connect a gas distribution chamber (613) and an actuation chamber (611). The first air outlet (621) and the second air outlet (623) cooperate to connect an actuation chamber (611) and the first cavity (66).

15. The suspended inverted exhaust air pump according to claim 14, characterized in that, A transfer chamber (649) is formed on the air pump assembly. The transfer chamber (649) is located between the second air outlet (623) and the first cavity (66). One end of the transfer chamber (649) is connected to the second air outlet (623), and the other end is connected to the first cavity (66) through an exhaust nozzle (50).

16. The suspended inverted exhaust air pump according to claim 15, characterized in that, The third air guide section (619) includes a mounting hole (624) and a plurality of air passage holes (625). The mounting hole (624) and the air passage holes (625) penetrate the air distribution bottom cover (618). The plurality of air passage holes (625) are arranged around the mounting hole (624). An air-blocking component (626) is installed in the mounting hole (624). The air-blocking component (626) is located away from the air distribution bottom cover (618). An elastic air-blocking part (627) is provided on one side of the pad (614), and the elastic air-blocking part (627) abuts against the air distribution bottom cover (618); when air is guided from the second cavity (67) to the actuation cavity (611), the elastic air-blocking part (627) opens the air passage (625), and when air is guided from the actuation cavity (611) to the second cavity (67), the elastic air-blocking part (627) closes the air passage (625).

17. The suspended inverted exhaust air pump according to claim 16, characterized in that, The outer casing (61) includes a detachably connected upper casing (628) and a lower casing (629). The upper casing (628) is provided with an air inlet (630), and an air inlet (62) is formed on the air inlet (630). The lower casing (629) is provided with an air outlet (631), and an air outlet (63) is formed on the air outlet (631). The soft sealing membrane (65) is sandwiched between the upper casing (628) and the lower casing (629).

18. The suspended inverted exhaust air pump according to claim 17, characterized in that, The tensioner (64) includes a first snap-fit ​​part (632) and a second snap-fit ​​part (633). The first snap-fit ​​part (632) snaps into the air distribution top cover (616), and the second snap-fit ​​part (633) penetrates the upper housing (628) and snaps into the upper housing (628).

19. The suspended inverted exhaust air pump according to any one of claims 11-18, characterized in that, The tensioner (64) is hollow inside and connected at both ends. The air inlet (62) is formed inside the tensioner (64) and extends into the second cavity (67) and is directly connected to the air inlet end.

20. The suspended inverted exhaust air pump according to any one of claims 11-19, characterized in that, The empty volume of the second cavity (67) after the air pump assembly is installed is three times or more the volume of one of the actuation chambers (611).

Images