A pump-valve integrated air pump

Abstract

This invention discloses an integrated pump and valve air pump, relating to the field of air pump technology. The device integrates a drive motor and a pumping device, directly driving a rotating extrusion component via a transmission shaft, simplifying the power transmission path and improving transmission efficiency. Two symmetrically arranged extrusion arms maintain dynamic balance during rotation, reducing vibration and noise. The rubber material of the air bladder provides shock absorption in contact with the extrusion arms. The design of the buffer chamber and air collection plate effectively buffers and balances the airflow, preventing airflow pulsation. A one-way valve automatically controls the opening and closing of the airflow, ensuring the stability and safety of gas output. Through this innovative integrated pump and valve structure, it achieves efficient, low-noise, compact, and reliable gas transmission, making the integrated pump and valve air pump suitable for various devices and systems requiring small, efficient gas transmission. It solves the problems of noise, large size, and difficulty in improving the overall performance and reliability of existing micro air pumps.

Description

Technical Field

[0001] This invention relates to the field of air pump technology, and in particular to an integrated pump and valve air pump. Background Technology

[0002] Miniature air pumps are small gas compression devices widely used in various applications requiring small-scale gas power. They are characterized by their small size, light weight, low power consumption, low noise, and adaptability to various power supply methods via DC power. They are widely used in medical equipment, home appliances, laboratory instruments, automobiles, and industrial automation. However, the selection of a miniature air pump requires consideration of parameters such as flow rate, pressure, power consumption, and noise to ensure it meets the specific application requirements. Nevertheless, existing miniature air pumps still have some drawbacks in practical applications, which limit their performance improvement and the breadth of their applications.

[0003] Among them, 1. Vibration and noise: When existing micro air pumps need to provide high-pressure and high-flow-rate air, due to the small volume of their air bladders or air films, they need to drive motors to rotate at higher speeds. Usually, the air bladders or air films are driven by motors and eccentric mechanisms. When the motor rotates at high speed, more obvious vibration and noise will occur. At the same time, since there is no valve to collect and buffer the air, the high-speed airflow generated will also make noise, which will mix with the vibration noise to form even greater noise.

[0004] 2. Size and weight: Although existing miniature air pumps are much smaller than traditional air pumps, the overall system size and weight are still relatively large due to the separate design of the pump and valve. This is not ideal, especially in applications that require high integration and portability.

[0005] 3. Energy Loss: In traditional designs, pumps and valves are connected by pipelines, and these connections inevitably lead to energy loss, reducing system efficiency. This energy loss is particularly noticeable in applications requiring long-term operation or high precision.

[0006] 4. Reliability issues: Due to the presence of air tubes and connectors, existing micro air pump systems are prone to problems such as leakage and loosening of connectors during long-term operation. In addition, air tubes and connectors take up more space, affecting the reliability and stability of the system.

[0007] To overcome the aforementioned shortcomings of existing micro air pumps, integrated pump-valve micro air pumps have emerged. The integrated pump-valve design combines the pump and valve into a compact unit, aiming to improve the overall performance and reliability of the system, simplify installation and maintenance, reduce vibration and noise during operation, and minimize energy loss and system size.

[0008] In summary, the existing technology has at least the following technical problems:

[0009] Existing miniature air pumps are separated from control valves, resulting in problems such as noise, large size, and difficulty in improving overall performance and reliability. Summary of the Invention

[0010] The purpose of this invention is to provide an integrated pump and valve air pump to solve the problems of existing micro air pumps and control valves being set separately, resulting in noise, large size, and difficulty in improving overall performance and reliability.

[0011] The preferred technical solutions among the many technical solutions provided by this invention can produce a variety of technical effects, which are described in detail below.

[0012] To address the aforementioned technical problems, the present invention provides the following technical solution:

[0013] This invention provides an integrated pump and valve air pump, comprising a base shell, a first partition plate inside the base shell separating a drive side and a pumping side; a drive motor is installed in the drive side, and a rotating extrusion member is disposed in the pumping side; the drive shaft of the drive motor passes through the first partition plate and is drively connected to the rotating extrusion member; and a pumping component installed on the pumping side, the pumping component comprising a bladder plate and air bladders at both ends controlled by air pressure; the bladder plate has four bladder holes, and the four air bladders are respectively installed in the four bladder holes; the bladder plate is fitted into the end face of the pumping side. The airbags are positioned internally, with the airbags drooping downwards from the pumping side towards the driving side. The rotating extruder is equipped with two symmetrical extrusion arms to maintain dynamic balance during rotation, reducing vibration and noise. The rotating extruder is located at the center of the four airbags. The drive motor drives the rotating extruder to rotate. During rotation, the two extrusion arms symmetrically extrude air from only two airbags at a time, allowing two airbags to deliver air while the other two airbags inhale, achieving sound wave balance between air delivery and inhalation to partially cancel out noise. Furthermore, the airbags are made of rubber, and the sidewalls of the airbags are in contact with... The compression swing arm contact has a damping effect to reduce the vibration of the compression swing arm rotation; and a buffer air chamber, which is stacked on the bladder plate, with a ventilation gap between the bottom plate of the buffer air chamber and the bladder plate; the bottom plate of the buffer air chamber has four ventilation holes corresponding to the four bladder holes, and a second partition plate is provided on the bottom plate; and an air collecting plate, which is stacked on the buffer air chamber; the air collecting plate and the second partition plate are sealed and abutted, and the second partition plate symmetrically divides the four ventilation holes into two groups, forming two sub-air chambers; the air collecting plate is provided with two There are two gas collecting holes, each corresponding to one of the two sub-gas chambers; and a gas collecting chamber, which is stacked on top of the gas collecting plate, with its inner cavity connected to the two gas collecting holes; a one-way valve is installed in the inner cavity of the gas collecting chamber; an outlet is provided at the end of the gas collecting chamber, and the airflow restriction range of the one-way valve covers the air passage of the outlet; when the air pressure in the gas collecting chamber is higher than the opening pressure of the one-way valve, the one-way valve opens the outlet to send air out; when the air pressure in the gas collecting chamber is lower than the opening pressure of the one-way valve, the one-way valve closes the outlet to stop sending air.

[0014] In one embodiment, the rotating extruder includes a swing arm, two extrusion cylinders, and two positioning pins; the two extrusion swing arms are disposed on the swing arm; the two extrusion cylinders are respectively mounted on the two extrusion swing arms, and the two positioning pins pass through the two extrusion cylinders and are connected and fixed to the extrusion swing arms, and the extrusion cylinders rotate around the positioning pins.

[0015] In one embodiment, the two extrusion arms are respectively disposed at both ends of the rotation axis of the arm component, and the extrusion cylinders and positioning pins on the two extrusion arms are respectively symmetrically inverted to balance the oblique resultant force when the rotating extruder rotates.

[0016] In one embodiment, a shaft hole is provided between the two extrusion arms on the swing arm component, and the axis of the shaft hole is perpendicular to the length direction of the two extrusion arms; a positioning hole is provided on the periphery of the shaft hole; the shaft hole is sleeved on the drive shaft of the drive motor, and a positioning screw is installed on the positioning hole to connect and lock the swing arm component to the drive shaft of the drive motor.

[0017] In one embodiment, the airbag has an elliptical vertical cross-sectional shape, and the airbag as a whole is half of an ellipsoid.

[0018] In one embodiment, the airbag has an inlet end and an outlet end at its two ends, respectively. The outlet end has a larger opening diameter, while the inlet end has a smaller opening diameter. An inlet diaphragm is provided inside the inlet end. The fixed side of the inlet diaphragm is connected and fixed to the inner wall of the column of the inlet end, and the movable side of the inlet diaphragm is inclined upward and movably overlaps with the inner wall of the airbag to restrict airflow to flow only from the inlet end to the outlet end. An outlet diaphragm is provided at the outlet end. The fixed side of the outlet diaphragm is connected and fixed to one side of the edge of the outlet end. The outlet diaphragm is laid flat to cover the outlet end, and the movable side of the outlet diaphragm movably overlaps with the other side of the edge of the outlet end to restrict airflow to flow only from the inner cavity of the airbag to the outlet end.

[0019] In one embodiment, the airbag is fixed to the airbag plate by means of the edge of the air delivery end.

[0020] In one embodiment, the top of the gas collecting chamber is a cone, and the gas outlet is located at the apex of the cone.

[0021] In one embodiment, the one-way valve includes a rubber ring base and an air outlet diaphragm; the rubber ring base has an air guide groove on one side and an air guide hole on the other side, the air guide hole penetrating the bottom of the air guide groove; the outer edge of the air guide groove side of the rubber ring base has a chamfer corresponding to the cone apex of the air collecting chamber; the rubber ring base is bonded and fixedly connected to the inner wall of the cone apex of the air collecting chamber; the air outlet diaphragm is disposed in the air guide groove, the fixed side of the air outlet diaphragm is connected and fixed to one side of the bottom of the air guide groove, the movable side of the air outlet diaphragm is movably overlapped with the other side of the bottom of the air guide groove, the air guide groove is connected to the air passage of the air outlet, and the air guide hole is connected to the inner cavity of the air collecting chamber, used to restrict the airflow to flow only from the inner cavity of the air collecting chamber to the air outlet; the opening and closing of the air outlet diaphragm is used to control the opening and closing of the air outlet.

[0022] In one embodiment, a plurality of silencing chambers are continuously arranged circumferentially on the inner side of the drive side of the bottom shell, and silencing cotton is embedded in the silencing chambers; silencing holes are provided on the inner and outer rings of the silencing chambers, and the silencing holes are evenly arranged axially; the inner ring of the silencing chambers encloses the drive motor.

[0023] The beneficial effects of the present invention are as follows:

[0024] The integrated pump and valve air pump achieves efficient, low-noise, stable, and reliable gas pumping through its unique integrated pump and valve structure.

[0025] (1) High-efficiency transmission: This integrated pump-valve air pump tightly combines the drive motor and pumping device, and directly drives the rotating extruder through the transmission shaft, which simplifies the power transmission path, reduces energy loss, and improves transmission efficiency. In addition, the symmetrically arranged extrusion arms of the rotating extruder enable the air bladder to be evenly stressed, ensuring continuous and stable gas output.

[0026] (2) Low vibration and low noise: The two extrusion arms on the rotating extruder are symmetrically arranged, maintaining dynamic balance during rotation and significantly reducing vibration and noise. In addition, the rubber material of the airbag has a damping effect when in contact with the extrusion arms, further reducing noise. During continuous rotation, the two extrusion arms are always in partial contact with two of the four airbags, which partially eliminates the axial runout of the rotating extruder, further reducing vibration and noise from the mechanical components of the extrusion airbag. Here, the arrangement of the rotating extruder and airbags results in much less vibration when the pump-valve integrated air pump is pumped compared to existing air pumps, making it suitable for more precise equipment, such as optical instruments and medical equipment where interference from air pump vibration needs to be avoided. Furthermore, the sound wave balance design for air delivery and intake effectively cancels out some of the noise, ensuring quieter operation of the equipment.

[0027] (3) Compact structure and high integration: The integrated pump and valve air pump has a more compact structure through the stacked design of multiple components such as bottom shell, rotating extrusion part, pumping part, buffer air chamber, air collection plate and air collection chamber. The high integration design not only saves space, but also simplifies the installation and maintenance process, and improves the reliability and service life of the equipment.

[0028] (4) High reliability: Due to the reduction of connecting parts and pipelines in traditional air pumps, the leakage points and failure points of the integrated pump and valve air pump are greatly reduced. This design greatly improves the reliability and stability of the system, and is especially suitable for applications that require long-term stable operation.

[0029] (5) Effective gas control: The design of the buffer chamber and the gas collecting plate enables the airflow to be effectively buffered and balanced before entering the gas collecting chamber, avoiding airflow pulsation, reducing the noise generated by high-speed airflow turbulence, and increasing the stability of airflow output to the next stage; the setting of the one-way valve ensures the one-way flow of gas, and automatically controls the opening and closing of the airflow according to the pressure, ensuring the stability and safety of gas output.

[0030] (6) Wide range of applications: This integrated pump and valve air pump is suitable for various equipment and systems that require small size and high efficiency gas transmission. Its low vibration, low noise and high reliability make it a promising candidate for applications in medical equipment, laboratory instruments and industrial automation.

[0031] In summary, the integrated pump-valve air pump, through its innovative integrated pump-valve structure design, successfully overcomes many shortcomings of traditional micro air pumps, such as excessive vibration and noise, large size and weight, significant energy loss, and relatively low reliability. It boasts advantages such as high efficiency, low noise, compactness, reliability, and wide applicability. This new type of air pump not only improves the overall performance of the equipment it is used in but also provides crucial support and assurance for the development of related technologies. Attached Figure Description

[0032] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is an isometric structural schematic diagram of the first embodiment of the present invention;

[0034] Figure 2 This is a cross-sectional structural schematic diagram of the first embodiment of the present invention;

[0035] Figure 3This is a partial cross-sectional view of the pumping side of the bottom shell in the first embodiment of the present invention;

[0036] Figure 4 This is a top view of the air collection plate according to the first embodiment of the present invention;

[0037] Figure 5 This is a top view of the buffer air chamber according to the first embodiment of the present invention;

[0038] Figure 6 This is a bottom view of the hidden bottom cover on the drive side of the bottom shell according to the first embodiment of the present invention.

[0039] Figure 7 This is a top view of the buffer air chamber according to the second embodiment of the present invention.

[0040] The accompanying figure is labeled as follows:

[0041] 1. Bottom shell; 11. First partition plate; 12. Drive side; 121. Silencer chamber; 122. Silencer hole; 13. Pumping side; 14. Drive motor; 15. Sound-absorbing cotton; 16. Bottom cover;

[0042] 2. Rotary extrusion component; 21. Swing arm component; 211. Extrusion swing arm; 212. Shaft hole; 213. Positioning hole; 22. Extrusion cylinder; 23. Positioning pin;

[0043] 3. Pumping components; 31. Bladder plate; 311. Bladder orifice; 32. Bladder; 321. Air delivery end; 322. Air delivery diaphragm; 323. Air inlet end; 324. Air inlet diaphragm;

[0044] 4. Buffer chamber; 41. Ventilation gap; 42. Ventilation hole; 43. Second partition plate;

[0045] 5. Sub-gas chamber;

[0046] 6. Air collection plate; 61. Air collection hole;

[0047] 7. Gas collection chamber; 71. Gas outlet;

[0048] 8. One-way valve; 81. Rubber ring base; 811. Air guide groove; 812. Air guide hole; 813. Chamfer; 82. Air outlet diaphragm;

[0049] 9. Air inlet; 91. Sealing strip. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0051] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other implementations obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0052] This specific embodiment provides an integrated pump and valve air pump that tightly integrates the drive motor and pumping device. It directly drives the rotating extruder via a transmission shaft, simplifying the power transmission path and improving transmission efficiency. Two symmetrically arranged extrusion arms maintain dynamic balance during rotation, reducing vibration and noise. The rubber material of the air bladder provides shock absorption in contact with the extrusion arms. The design of the buffer chamber and air collection plate effectively buffers and balances the airflow, preventing airflow pulsation. A one-way valve automatically controls the opening and closing of the airflow, ensuring the stability and safety of the gas output. Through this innovative integrated pump and valve structure, it achieves efficient, low-noise, compact, and reliable gas transmission, making it suitable for various devices and systems requiring small, efficient gas transmission. It effectively solves the problems of existing micro-pumps with separate control valves, which result in higher noise levels, larger size, and difficulty in improving overall performance and reliability.

[0053] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the entirety of the configurations illustrated in the following embodiments is not limited to those necessary for the solution of the invention as described in the claims.

[0054] The first implementation of an integrated pump and valve air pump, for example Figures 1 to 6As shown, the device includes a bottom shell 1, within which a first partition plate 11 separates a drive side 12 and a pumping side 13. A drive motor 14 is installed in the drive side 12, and a rotating extruder 2 is installed in the pumping side 13. The drive shaft of the drive motor 14 passes through the first partition plate 11 and is connected to the rotating extruder 2. A pumping unit 3 is installed on the pumping side 13. The pumping unit 3 includes a bladder plate 31 and airbags 32 at both ends that open and close under pressure control. The bladder plate 31 has four bladder holes 311, and the four airbags 32 are respectively installed in the four bladder holes 311. The bladder plate 31 is fitted into the pumping side 13. The end face is internal, and the airbag 32 hangs down from the pumping side 13 to the driving side 12; the rotating extruder 2 is provided with two symmetrical extrusion arms 211, which are used to maintain dynamic balance during rotation and reduce vibration and noise; the rotating extruder 2 is located at the center of the four airbags 32, and the drive motor 14 drives the rotating extruder 2 to rotate. During the rotation, the two extrusion arms 211 symmetrically extrude the side walls of two airbags 32 each time, so that two airbags 32 are expelling air, and the other two airbags 32 are inhaling air, so as to achieve sound wave balance between expelling and inhaling sounds and cancel out some noise; and the airbags 32 are made of rubber, and the airbags 3 The sidewalls of the device 2 have a damping effect in contact with the extrusion swing arm 211, which reduces the vibration of the extrusion swing arm 211 during rotation; and a buffer air chamber 4, which is stacked on top of the bladder plate 31, with a ventilation gap 41 between the bottom plate of the buffer air chamber 4 and the bladder plate 31; the bottom plate of the buffer air chamber 4 has four ventilation holes 42 corresponding to four bladder holes 311, and a second partition plate 43 is provided on the bottom plate; and a gas collecting plate 6, which is stacked on top of the buffer air chamber 4; the gas collecting plate 6 and the second partition plate 43 are sealed and abutted, and the second partition plate 43 symmetrically divides the four ventilation holes 42 into two groups, forming two sub-air chambers 5; The air plate 6 is provided with two air collecting holes 61, which are respectively connected to two sub-air chambers 5; and an air collecting chamber 7, which is stacked on the air collecting plate 6. The inner cavity of the air collecting chamber 7 is connected to the two air collecting holes 61; a one-way valve 8 is installed in the inner cavity of the air collecting chamber 7; an air outlet 71 is provided at the end of the air collecting chamber 7, and the airflow restriction range of the one-way valve 8 covers the air passage of the air outlet 71; when the air pressure in the air collecting chamber 7 is higher than the opening pressure of the one-way valve 8, the one-way valve 8 opens the air outlet 71 to send air out; when the air pressure in the air collecting chamber 7 is lower than the opening pressure of the one-way valve 8, the one-way valve 8 closes the air outlet 71 to stop the air from being released.

[0055] The bottom cover 16 is installed at the end of the drive side 12 of the bottom shell 1; an air inlet 9 is provided on the peripheral wall of the pumping side 13 of the bottom shell 1.

[0056] During application, when the rotating extruder 2 compresses the airbag 32, the airflow is drawn in by the airbag 32 and then expelled to the next level by the symmetrical extrusion arm 211. The airflow enters the ventilation gap 41 and then enters the two sub-air chambers 5 divided by the second partition plate 43. The airflow is buffered and pressurized in the sub-air chambers 5 and then overflows to the next level air collecting plate 6. It enters the air collecting chamber 7 through the air collecting hole 61. The airflow is further buffered and rectified in the air collecting chamber 7 and further pressurized under the closure of the one-way valve 8. When the pressure in the air collecting chamber 7 reaches the opening pressure of the one-way valve 8, the airflow enters the air outlet 71 from the one-way valve 8 and is delivered by air pressure.

[0057] The integrated pump and valve air pump achieves efficient, low-noise, stable, and reliable gas pumping through its unique integrated pump and valve structure.

[0058] (1) High-efficiency transmission: This pump-valve integrated air pump tightly combines the drive motor 14 and the pumping device, and directly drives the rotating extruder 2 through the transmission shaft, which simplifies the power transmission path, reduces energy loss, and improves transmission efficiency. In addition, the symmetrically arranged extrusion arms 211 of the rotating extruder 2 enable the air bag 32 to be evenly stressed, ensuring continuous and stable gas output.

[0059] (2) Low vibration and low noise: The two extrusion arms 211 on the rotating extruder 2 are symmetrically arranged, maintaining dynamic balance during rotation and significantly reducing vibration and noise. In addition, the rubber material of the airbag 32 has a damping effect when in contact with the extrusion arms 211, further reducing noise. During continuous rotation, the two extrusion arms 211 are always in partial contact with two of the four airbags 32, which partially eliminates the runout of the rotating axis of the rotating extruder 2, further reducing vibration and also reducing the noise of the mechanical parts of the extrusion airbag 32. Here, the arrangement of the rotating extruder 2 and the airbag 32 results in much less vibration when the pump-valve integrated air pump is pumped compared to existing air pumps, making it suitable for more precise equipment, such as optical instruments and medical equipment where the vibration of the air pump needs to be avoided. In addition, the sound wave balance design for air delivery and intake effectively cancels out part of the noise, ensuring that the equipment is quieter during operation.

[0060] (3) Compact structure and high integration: The integrated pump and valve air pump has a more compact structure through the stacked design of multiple components, including the bottom shell 1, rotating extrusion component 2, pumping component 3, buffer air chamber 4, air collecting plate 6 and air collecting chamber 7. The high integration design not only saves space, but also simplifies the installation and maintenance process, and improves the reliability and service life of the equipment.

[0061] (4) High reliability: Due to the reduction of connecting parts and pipelines in traditional air pumps, the leakage points and failure points of the integrated pump and valve air pump are greatly reduced. This design greatly improves the reliability and stability of the system, and is especially suitable for applications that require long-term stable operation.

[0062] (5) Effective gas control: The design of the buffer chamber 4 and the gas collecting plate 6 allows the airflow to be rectified by the two sub-chambers 5 and the two gas collecting holes 61 of the gas collecting plate 6 before entering the gas collecting chamber 7. This effectively buffers and balances the airflow, avoids airflow pulsation, reduces the noise generated by high-speed airflow turbulence, and increases the stability of the airflow output to the next stage. The one-way valve 8 ensures the one-way flow of gas and automatically controls the opening and closing of the airflow according to the pressure, ensuring the stability and safety of the gas output.

[0063] (6) Wide range of applications: This integrated pump and valve air pump is suitable for various equipment and systems that require small size and high efficiency gas transmission. Its low vibration, low noise and high reliability make it a promising candidate for applications in medical equipment, laboratory instruments and industrial automation.

[0064] In summary, the integrated pump-valve air pump, through its innovative integrated pump-valve structure design, successfully overcomes many shortcomings of traditional micro air pumps, such as excessive vibration and noise, large size and weight, significant energy loss, and relatively low reliability. It boasts advantages such as high efficiency, low noise, compactness, reliability, and wide applicability. This new type of air pump not only improves the overall performance of the equipment it is used in but also provides crucial support and assurance for the development of related technologies.

[0065] As one of the alternative implementation methods,

[0066] Regarding the specific structure of the aforementioned rotary extruder 2, this embodiment is, for example... Figure 2 and Figure 3 As shown, the rotating extruder 2 includes a swing arm 21, two extrusion cylinders 22 and two positioning pins 23; the two extrusion swing arms 211 are disposed on the swing arm 21; the two extrusion cylinders 22 are respectively installed on the two extrusion swing arms 211, and the two positioning pins 23 pass through the two extrusion cylinders 22 and are connected and fixed to the extrusion swing arms 211, and the extrusion cylinders 22 rotate along the positioning pins 23.

[0067] Furthermore, two extrusion swing arms 211 are respectively set at both ends of the rotation axis of the swing arm 21. The extrusion cylinders 22 and positioning pins 23 on the two extrusion swing arms 211 are symmetrically inverted to balance the oblique resultant force when the rotating extruder 2 rotates. This can reduce resistance and counteract the axial runout of the rotating extruder when it runs at high speed, so that the rotating extruder 2 can rotate at high speed with a more stable posture under the drive motor 14, thereby reducing vibration and further reducing the noise caused by vibration.

[0068] Regarding the specific structure of the transmission connection between the aforementioned swing arm 21 and the drive shaft of the drive motor 14, this embodiment is, for example... Figure 3 As shown, on the swing arm 21, a shaft hole 212 is provided between the two extrusion swing arms 211, and the axis of the shaft hole 212 is perpendicular to the length direction of the two extrusion swing arms 211; a positioning hole 213 is provided on the periphery of the shaft hole 212; the shaft hole 212 is sleeved on the drive shaft of the drive motor 14, and a positioning screw is installed on the positioning hole 213 to connect and lock the swing arm 21 to the drive shaft of the drive motor 14.

[0069] Regarding the specific shape and structure of the airbag 32 described above, this embodiment is as follows: Figure 2 and Figure 3 As shown, the vertical cross-sectional shape of the airbag 32 is elliptical, and the airbag 32 as a whole is half of an ellipsoid.

[0070] Regarding the specific functional structure of the airbag 32 for air intake and air delivery, this embodiment is as follows: Figure 3 As shown, the airbag 32 has an inlet end 323 and an outlet end 321 at its two ends, respectively. The outlet end 321 has a larger opening diameter, while the inlet end 323 has a smaller opening diameter. An inlet diaphragm 324 is provided inside the inlet end 323. The fixed side of the inlet diaphragm 324 is connected and fixed to the inner wall of the column of the inlet end 323, and the movable side of the inlet diaphragm 324 is inclined upward and movably overlaps with the inner wall of the airbag 32 to restrict airflow to flow only from the inlet end 323 to the outlet end 321. An outlet diaphragm 322 is provided at the port of the outlet end 321. The fixed side of the outlet diaphragm 322 is connected and fixed to one side of the edge of the outlet end 321. The outlet diaphragm 322 is laid flat to cover the outlet end 321, and the movable side of the outlet diaphragm 322 is movably overlapped with the other side of the edge of the outlet end 321 to restrict airflow to flow only from the inner cavity of the airbag 32 to the outside of the outlet end 321.

[0071] Regarding the specific connection structure between the airbag 32 and the airbag plate 31, this embodiment is as follows: Figure 2 , Figure 3 and Figure 5 As shown, the airbag 32 is fixed to the airbag plate 31 by the edge of the air delivery end 321.

[0072] Regarding the specific shape and structure of the aforementioned gas collecting chamber 7, this embodiment is, for example... Figure 4 As shown, the top of the gas collecting chamber 7 is a cone, and the gas outlet 71 is located at the tip of the cone.

[0073] Regarding the airflow limiting structure of the aforementioned one-way valve 8, this embodiment is, for example... Figure 2 and Figure 3As shown, the one-way valve 8 includes a rubber ring base 81 and an outlet diaphragm 82; the rubber ring base 81 has an air guide groove 811 on one side and an air guide hole 812 on the other side, the air guide hole 812 penetrating the bottom of the air guide groove 811; the outlet diaphragm 82 is disposed in the air guide groove 811, the fixed side of the outlet diaphragm 82 is connected and fixed to one side of the bottom of the air guide groove 811, and the movable side of the outlet diaphragm 82 is movable to the other side of the bottom of the air guide groove 811. The air guide groove 811 is connected to the air passage of the air outlet 71, and the air guide hole 812 is connected to the inner cavity of the air collection chamber 7, which is used to restrict the airflow to flow only from the inner cavity of the air collection chamber 7 to the air outlet 71; the opening and closing of the air outlet diaphragm 82 is used to control the opening and closing of the air outlet 71; the outer edge of the air guide groove 811 side of the rubber ring base 81 is provided with a chamfer 813 corresponding to the cone apex of the air collection chamber 7; the rubber ring base 81 is bonded and fixedly connected to the inner wall of the cone apex of the air collection chamber 7.

[0074] Regarding the specific structure of the bottom shell 1 for noise reduction during the operation of the drive motor 14, this embodiment is as follows: Figure 1 , Figure 2 and Figure 6 As shown, multiple silencing chambers 121 are continuously arranged circumferentially inside the drive side 12 of the bottom shell 1, and silencing cotton 15 is embedded in the silencing chambers 121; silencing holes 122 are provided on the inner and outer rings of the silencing chambers 121, and the silencing holes 122 are evenly arranged along the axial direction; the inner ring of the silencing chambers 121 encloses the drive motor 14.

[0075] When the drive motor 14 is running, the high-speed relative rotation of the rotor and stator will generate mechanical noise and current noise between the rotor and stator. By continuously setting multiple silencing chambers 121 to enclose the drive motor 14, the noise generated by the drive motor 14 enters the silencing cotton 15 inside the silencing chamber 121 through the silencing holes 122 on the inner ring of the silencing chamber 121 for the first silencing. The weakened noise enters through the silencing holes 122 on the outer ring for the second silencing. At the same time, the silencing cotton 15 can also absorb some of the vibration generated by the drive motor 14 that is conducted to the silencing chamber 121 through the inner ring of the silencing chamber 121.

[0076] A second embodiment of the pump-valve integrated air pump, for example Figure 5 and Figure 7 As shown, the difference between this embodiment and the first embodiment is that the gas collecting plate 6 and the second partition plate 43 are in sealed contact; the second partition plate 43 is provided with a sealing groove facing the gas collecting plate 6, and a sealing strip 91 is installed in the sealing groove.

[0077] When in use, the gas collecting plate 6 is stacked on top of the buffer gas chamber 4, and the bottom of the gas collecting plate 6 contacts the sealing strip 91, so that the second partition plate 43 forms a sealed contact with the bottom of the gas collecting plate 6.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described.

[0079] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A pump-valve integrated air pump, characterized in that, include The bottom shell has a first partition plate inside, which separates the driving side and the pumping side; a drive motor is installed in the driving side, and a rotating extruder is provided in the pumping side; the drive shaft of the drive motor passes through the first partition plate and is connected to the rotating extruder for transmission. And a pumping unit installed on the pumping side, the pumping unit includes a bladder plate and airbags at both ends that are controlled to open and close by air pressure. The bladder plate is provided with four bladder holes, and the four airbags are respectively installed in the four bladder holes. The bladder plate is fitted into the end face of the pumping side, and the airbags hang down from the pumping side to the driving side. The two ends of the airbag are respectively designated as an air inlet and an air delivery end; The rotating extruder is equipped with two symmetrical extrusion arms to maintain dynamic balance during rotation and reduce vibration and noise. The rotating extruder is located at the center of the four airbags. The drive motor drives the rotating extruder to rotate. During rotation, the two extrusion arms symmetrically extrude only the sidewalls of two airbags at a time, so that two airbags are expelling air while the other two are inhaling air, achieving sound wave balance between expulsion and inhalation to cancel out some noise. Furthermore, the airbags are made of rubber, and the contact between the sidewalls of the airbags and the extrusion arms has a shock-absorbing effect to reduce the vibration of the extrusion arms during rotation. The buffer air chamber is stacked on the bladder plate, and a ventilation gap is left between the bottom plate of the buffer air chamber and the bladder plate. The bottom plate of the buffer air chamber is provided with four ventilation holes corresponding to the four bladder holes, and a second partition plate is provided on the bottom plate. And a gas collecting plate, which is stacked on top of the buffer gas chamber; the gas collecting plate is sealed and abutted against the second partition plate, and the second partition plate symmetrically divides the four vent holes into two groups to form two sub-gas chambers; the gas collecting plate is provided with two gas collecting holes, and the two gas collecting holes are respectively connected to the two sub-gas chambers; The gas collection chamber is stacked on top of the gas collection plate, and the inner cavity of the gas collection chamber is connected to the two gas collection holes. A one-way valve is installed in the inner cavity of the gas collection chamber. An air outlet is provided at the end of the gas collection chamber, and the airflow restriction range of the one-way valve covers the air passage of the air outlet. When the air pressure in the air collecting chamber is higher than the opening pressure of the one-way valve, the one-way valve opens the air outlet to send air out; when the air pressure in the air collecting chamber is lower than the opening pressure of the one-way valve, the one-way valve closes the air outlet to stop sending air.

2. The integrated pump and valve air pump according to claim 1, characterized in that, The rotary extrusion component includes a swing arm component, two extrusion cylinders, and two positioning pins; the two extrusion swing arms are disposed on the swing arm component; The two extrusion cylinders are respectively mounted on the two extrusion swing arms, and the two positioning pins pass through the two extrusion cylinders and are connected and fixed to the extrusion swing arms. The extrusion cylinders rotate along the positioning pins.

3. The integrated pump and valve air pump according to claim 2, characterized in that, On the swing arm component, a shaft hole is provided between the two extrusion swing arms, and the axis of the shaft hole is perpendicular to the length direction of the two extrusion swing arms; The shaft hole has a positioning hole on its periphery; the shaft hole is sleeved on the drive shaft of the drive motor, and a positioning screw is installed on the positioning hole to lock the swing arm to the drive shaft of the drive motor.

4. The integrated pump and valve air pump according to claim 1, characterized in that, The vertical cross-sectional shape of the airbag is elliptical, and the airbag as a whole is half of an ellipsoid.

5. The integrated pump and valve air pump according to claim 1, characterized in that, in, The air supply end has a large opening diameter, and the air inlet end has a small opening diameter. An air intake diaphragm is provided inside the air intake end. The fixed side of the air intake diaphragm is connected and fixed to the inner wall of the column of the air intake end. The movable side of the air intake diaphragm is inclined upward and movably overlaps with the inner wall of the airbag to restrict the airflow to flow only from the air intake end to the air delivery end. An air delivery diaphragm is provided on the port of the air delivery end. The fixed side of the air delivery diaphragm is connected and fixed to one side of the edge of the air delivery end. The air delivery diaphragm is laid flat to cover the air delivery end. The movable side of the air delivery diaphragm is movable to overlap with the other side of the edge of the air delivery end, so as to restrict the airflow to flow only from the inner cavity of the airbag to the outside of the air delivery end.

6. The integrated pump and valve air pump according to claim 5, characterized in that, The airbag is fixed to the airbag plate by the edge of the air delivery end.

7. The integrated pump and valve air pump according to claim 1, characterized in that, The top of the gas collecting chamber is a cone, and the gas outlet is located at the apex of the cone.

8. The integrated pump and valve air pump according to claim 7, characterized in that, The one-way valve includes a rubber ring base and an air outlet diaphragm; the rubber ring base has an air guide groove on one side and an air guide hole on the other side, the air guide hole penetrating the bottom of the air guide groove; the outer edge of the air guide groove side of the rubber ring base has a chamfer corresponding to the cone apex of the air collection chamber; the rubber ring base is bonded and fixedly connected to the inner wall of the cone apex of the air collection chamber. The air outlet diaphragm is disposed within the air guide groove. The fixed side of the air outlet diaphragm is connected and fixed to one side of the bottom of the air guide groove, and the movable side of the air outlet diaphragm is movably connected to the other side of the bottom of the air guide groove. The air guide groove is connected to the air passage of the air outlet, and the air guide hole is connected to the inner cavity of the air collection chamber, which is used to restrict the airflow to flow only from the inner cavity of the air collection chamber to the air outlet. The opening and closing of the air outlet diaphragm is used to control the opening and closing of the air outlet.

9. The integrated pump and valve air pump according to claim 1, characterized in that, Multiple anechoic chambers are continuously arranged circumferentially on the inner side of the drive side of the bottom shell, and anechoic cotton is embedded in the anechoic chambers. The silencing chamber has silencing holes on both its inner and outer rings, and the silencing holes are evenly arranged along the axial direction; the inner ring of the silencing chamber encloses the drive motor.

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