Air pump device capable of inflating and deflating air through double air passages

Abstract

An air pump device capable of inflating and deflating air through double air passages comprises a shell, an air inlet and an air outlet, wherein the shell is provided with an air exchange port, an air vent valve and a knob assembly; an air channel conversion assembly and an air draft assembly are arranged in the shell. The air channel conversion assembly is connected with the rotary knob assembly and the power switch. The ventilation port is communicated with the outside, and the ventilation valve is connected with an inflatable product; the air draft assembly comprises a double-sided fan blade, a first air inlet, a second air inlet and an air outlet; gas enters the double-sided fan blades from the first gas inlet and the second gas inlet to be accelerated; during inflation, the ventilation valve is communicated with the air outlet, and the ventilation port is respectively communicated with the first air inlet and the second air inlet; when air is released, the ventilation valve is communicated with the first air inlet and the second air inlet, and the air outlet is communicated with the air exchange port. The double-way air inflation and deflation device realizes double-way air inflation and deflation, effectively increases the air flow, reduces the air inflation and deflation time, and reduces the energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of air pump technology for inflation and deflation, and more specifically, to an air pump device for inflation and deflation with dual air channels. Background Technology

[0002] Currently, existing air pumps are used in many applications with inflatable products (such as air mattresses, inflatable toys, tires, etc.). Traditional air pumps deliver airflow through a single path: air enters the inflatable product through the pump during inflation and exits through the same path during deflation. However, this single-path design can lead to low inflation and deflation efficiency, especially in situations requiring rapid inflation or deflation, resulting in longer processing times. For many inflatable products, shortening inflation and deflation times is crucial, affecting not only user experience but also pump efficiency. Traditional air pumps may be limited by exhaust pressure during inflation, resulting in a slow inflation process; similarly, the exhaust airflow may be restricted during deflation, leading to prolonged deflation times. Consequently, air pumps consume more electricity when inflating and deflation products, which contradicts the energy-saving and environmentally friendly trends in industrial products. Utility Model Content

[0003] The present invention aims to overcome at least one defect (deficiency) of the prior art and provide a dual-channel air pump device for increasing airflow, reducing airflow time, and reducing power consumption.

[0004] The technical solution adopted by this utility model is as follows: the air pump device includes: a housing, on which an air exchange port, an air valve, and a knob assembly are provided; an air duct conversion assembly and an exhaust assembly are provided inside the housing; the air duct conversion assembly is connected to the knob assembly and a power switch respectively; the air exchange port is connected to the outside, and the air valve is connected to the inflatable product; the exhaust assembly includes double-sided fan blades, a first air inlet, a second air inlet, an air outlet, and a drive assembly; gas enters the double-sided fan blades from the first air inlet and the second air inlet for acceleration;

[0005] When inflating, the knob assembly is turned to move the air passage conversion assembly so that the vent valve is connected to the air outlet. At the same time, the power switch is turned on to start the drive assembly to rotate the double-sided fan blades. The air exchange port is connected to the first air inlet and the second air inlet respectively. When deflating, the knob assembly is turned to move the air passage conversion assembly so that the vent valve is connected to the first air inlet and the second air inlet respectively. At the same time, the power switch is turned on to start the drive assembly to rotate the double-sided fan blades. The air outlet is connected to the air exchange port.

[0006] In this invention, by setting up double-sided fan blades, gas can enter the exhaust assembly from different air inlets for acceleration, thereby achieving dual-path inflation and deflation. This effectively increases the airflow, reduces inflation and deflation time, lowers energy consumption, and improves the efficiency and stability of the entire air pump device. Furthermore, this application utilizes the interlocking of the knob assembly, the airway conversion assembly, and the power switch. By turning the knob assembly, the airway conversion assembly is moved to a specific position while the power switch is turned on, causing the exhaust assembly to start operating. This effectively improves the working stability of the air pump while achieving inflation and deflation.

[0007] Preferably, the first air inlet is disposed on the front side of the double-sided fan blade, the second air inlet is disposed on the back side of the double-sided fan blade, and the exhaust assembly further includes a third air inlet;

[0008] During inflation, the vent valve is connected to the air outlet through the airway conversion assembly to form a first airway. The air exchange port is connected to the first air inlet and the gap formed by the housing and the exhaust assembly to form a second airway. The air exchange port is connected to the third air inlet, the gap formed by the housing and the exhaust assembly, and the second air inlet to form a third airway. External gas entering from the air exchange port can enter the double-sided fan blades through the second and third airways for airflow acceleration, and then enter the inflatable product through the first airway.

[0009] When deflated, the vent valve is connected to the third air inlet through the airway conversion assembly, and simultaneously connects to the second air inlet through the gap formed by the housing and the exhaust assembly to form a fourth airway; the vent valve, the gap formed by the airway conversion assembly, the housing and the exhaust assembly, and the first air inlet form a fifth airway, and the air outlet and the air exchange port form a sixth airway. The gas discharged from the inflated product can enter the double-sided fan blades through the fourth and fifth airways for airflow acceleration, and then be discharged to the outside through the sixth airway.

[0010] In this application, the inflation and deflation of the inflatable product can be achieved by moving the airway switching component to connect it to the air outlet or the third air inlet. Moreover, whether it is inflation or deflation, air can be circulated through multiple airways, thereby effectively increasing the airflow, reducing inflation and deflation time, and reducing power consumption.

[0011] Preferably, the double-sided fan blades are provided with a baffle in the middle, which is used to cooperate with the first air inlet and the second air inlet to form several air intake passages.

[0012] By setting a baffle in the middle of the double-sided fan blades, the airflow can enter the double-sided fan blades from the first air inlet and the second air inlet respectively for acceleration. This not only increases the airflow velocity but also the airflow volume, effectively reducing the inflation and deflation time and improving work efficiency.

[0013] Preferably, the airway conversion assembly has a partition plate inside for connecting with the ventilation valve to control the opening and closing of the ventilation valve; the top of the airway conversion assembly also has a protrusion for cooperating with the power switch to control the power switch.

[0014] The partition plate in the airway conversion assembly in this application can effectively control the gas to enter the exhaust assembly through different routes for airflow acceleration, and can also realize the opening and closing of the ventilation valve. Furthermore, the top protrusion of the airway conversion assembly can control the power switch when the airway conversion assembly moves, thereby making the structure of the entire air pump more compact. Only the control knob assembly is needed to control the inflation, deflation, or stop status of the entire device, simplifying operation and improving the user experience.

[0015] Preferably, the vent valve includes a top rod with a control rod at its bottom. The top of the control rod is in contact with the partition plate. When the exhaust assembly is working, the partition plate will exert a forward force on the top rod to open the vent valve.

[0016] By utilizing the partition plate and the top rod to abut against each other, the vent valve is opened when the airway conversion assembly moves to the air outlet or the third air inlet, thereby allowing for inflation or deflation. When the airway conversion assembly is moved between the air outlet and the third air inlet, the vent valve is closed, and the entire device is in a stopped working state, effectively enhancing the stability and reliability of the air pump.

[0017] Preferably, the vent valve further includes a cover, a spring, and a pressure plate connected in sequence. The cover has a hole for ventilation. The pressure plate passes through the spring and is connected to the cover. A sealing ring is also fitted on the pressure plate to prevent gas leakage. The pressure plate is snapped into the top rod. When the exhaust assembly is working, the spring is compressed under the pressure of the top rod, causing the pressure plate to move toward the cover, thereby opening the vent valve.

[0018] In this application, when the vent valve is opened, the pressure plate is compressed by the top rod, causing the spring to be compressed and thus the pressure plate moves toward the cover to open the vent valve, thereby realizing the inflation and deflation of the inflatable product.

[0019] Preferably, the exhaust assembly further includes a bracket and an air inlet cover, the double-sided fan blades are disposed in the space formed by the connection between the air inlet cover and the bracket, the first air inlet is disposed on the bracket, and the second air inlet is disposed on the air inlet cover.

[0020] In the exhaust assembly, the double-sided fan blades, together with the bracket and the air inlet cover, form two air inlet channels, enabling dual-path inflation and deflation, which greatly increases the airflow, reduces inflation and deflation time, and improves work efficiency.

[0021] Preferably, the air inlet cover has an opening on one side above and a closed surface on the other side above; the bracket has two openings on the side near the first air inlet, one of which cooperates with the opening on the air inlet cover to form a third air inlet, and the other opening cooperates with the closed surface on the air inlet cover to form an air outlet; the bracket has an opening on the side away from the first air inlet, which is used to cooperate with a ventilation valve to connect the air pump device and the inflation product.

[0022] By cooperating with the bracket and the air inlet cover, gas can flow through a specific opening when inflating or deflating the product, thereby effectively increasing the flow rate and reducing the inflation / deflating time.

[0023] Preferably, the knob assembly includes a knob cap, a rotating rod, a positioning ball, and a positioning spring. The knob assembly is connected to the airway conversion assembly via the rotating rod. The rotating rod has three sequentially connected recessed positions. The positioning ball is placed in one of the recessed positions and connected to the knob cap via the positioning spring. The recessed positions on both sides are spherical and their size matches the positioning ball. When the positioning ball is in one of the recessed positions on both sides, the air pump is in an inflating or deflating state. The recessed position in the middle gradually increases in depth from both sides to the middle. When the positioning ball is in the middle recessed position, the air pump is in a stopped state. By turning the knob cap, the positioning ball can be switched to the recessed positions on both sides under the action of the positioning spring, thereby switching the working state of the air pump. Through the positioning of the positioning ball, the entire device can be controlled to be in an inflating, deflating, or stopped state when the knob cap is turned, meeting different user needs and improving the user experience.

[0024] Preferably, a pressure regulating component is also provided on the top of the bracket to monitor the air pressure of the airway during inflation and deflation, so that the air pump can automatically stop inflation and deflation. The pressure regulating component includes a pressure regulating plate, a cap, and a screw. The screw is located in the cap and passes through the bottom of the cap. The distance between the bottom of the screw and the pressure regulating plate can be adjusted by turning the screw to preset the air pressure value at which the air pump automatically stops inflation and deflation.

[0025] The pressure regulating component monitors the air pressure inside the air pump, automatically stopping inflation and deflation. During inflation, the air pressure in the device gradually increases, slowly pushing the pressure regulating plate upward. When the pressure regulating plate abuts against the screw, inflation is complete. At this point, the positioning ball of the knob component slides to the recessed position in the middle, stopping the air pump. During deflation, the air pressure in the device gradually decreases, and the pressure regulating plate slowly moves downward from its abutment against the screw. When the pressure regulating plate separates from the screw to its maximum distance, deflation is complete. At this point, the positioning ball of the knob component slides to the recessed position in the middle, stopping the air pump. This effectively saves energy and ensures the air pump operates smoothly and efficiently.

[0026] Preferably, a wire storage box is also provided inside the housing for storing wires and other small parts, and a cover is provided on the top of the housing, which can be opened to store items into the wire storage box. This application provides a dedicated storage box for storing wires and small parts, making the wires inside the air pump neater and easier to maintain.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] This invention utilizes multiple air channels to inflate and deflate inflatable products, effectively increasing airflow, reducing inflation / deflation time, lowering energy consumption, and improving the overall efficiency and stability of the air pump device. Furthermore, by employing the interconnectedness of the knob assembly, air channel conversion assembly, and power switch, the entire air pump structure is made more compact. Controlling only the knob assembly is sufficient to control the inflation, deflation, or shutdown status of the entire device, simplifying operation and improving the user experience. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0031] Figure 3 This is an exploded view of the overall structure of this utility model.

[0032] Figure 4 This is an exploded right view of the overall structure of this utility model.

[0033] Figure 5 This is an exploded view of the internal structure of this utility model.

[0034] Figure 6 This is a schematic diagram of the explosion of the vent valve of this utility model.

[0035] Figure 7 This is an exploded schematic diagram of the ventilation component of this utility model.

[0036] Figure 8 This is an exploded right view of the ventilation assembly of this utility model.

[0037] Figure 9 This is a cross-sectional schematic diagram of the present invention.

[0038] Figure 10 This is a top view of the overall structure of this utility model.

[0039] Figure 11 This is a schematic diagram of the internal structure of the present invention in the vented state.

[0040] Figure 12 This is a schematic diagram of the explosion in the inflated state of this utility model.

[0041] Figure 13 This is a schematic diagram of the explosion in the venting state of this utility model.

[0042] Figure Descriptions: 1. Housing; 2. Ventilation port; 3. Ventilation valve; 31. Top rod; 32. Control rod; 33. Cover; 34. Spring; 35. Pressure plate; 36. Sealing ring; 4. Knob assembly; 41. Knob cap; 42. Rotary rod; 43. Positioning ball; 44. Positioning spring; 5. Airway conversion assembly; 51. Divider plate; 52. Protrusion; 6. Exhaust assembly; 61. Double-sided fan blades; 62. First air inlet; 63. Second air inlet; 64. Air outlet; 65. Third air inlet; 66. Drive assembly; 7. Power switch; 8. Bracket; 9. Air inlet cover; 10. Pressure regulating assembly; 101. Pressure regulating plate; 102. Buckle; 103. Screw; 11. Wire storage box; 111. Cover plate. Detailed Implementation

[0043] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0044] Example 1

[0045] like Figures 1-13As shown, this embodiment provides a dual-channel inflation / deflation air pump device. The air pump device includes: a housing 1, on which an air exchange port 2, an air valve 3, and a knob assembly 4 are provided; an air channel conversion assembly 5 and an exhaust assembly 6 are provided inside the housing 1; the air channel conversion assembly 5 is connected to the knob assembly 4 and a power switch 7 respectively; the air exchange port 2 is connected to the outside, and the air valve 3 is connected to the inflation product; the exhaust assembly 6 includes a double-sided fan blade 61, a first air inlet 62, a second air inlet 63, an air outlet 64, and a drive assembly 66; gas enters the double-sided fan blade 61 from the first air inlet 62 and the second air inlet 63 for acceleration;

[0046] When inflating, the knob assembly 4 is turned to move the air passage conversion assembly 5 so that the ventilation valve 3 is connected to the air outlet 64. At the same time, the power switch 7 is turned on to start the drive assembly 66 to rotate the double-sided fan blade 61. The air exchange port 2 is connected to the first air inlet 62 and the second air inlet 63 respectively. When deflating, the knob assembly 4 is turned to move the air passage conversion assembly 5 so that the ventilation valve 3 is connected to the first air inlet 62 and the second air inlet 63 respectively. At the same time, the power switch 7 is turned on to start the drive assembly 66 to rotate the double-sided fan blade 61. The air outlet 64 is connected to the air exchange port 2.

[0047] In this invention, by setting up double-sided fan blades 61, gas can enter the exhaust assembly 6 from different air inlets for acceleration, thereby achieving dual-path inflation and deflation. This effectively increases the airflow, reduces inflation and deflation time, lowers energy consumption, and improves the efficiency and stability of the entire air pump device. Furthermore, this application utilizes the interlocking of the knob assembly 4, the airway conversion assembly 5, and the power switch 7. By turning the knob assembly 4, the airway conversion assembly 5 is moved to a specific position while the power switch 7 is turned on, causing the exhaust assembly 6 to start operating. This effectively improves the working stability of the air pump while achieving inflation and deflation.

[0048] Preferably, such as Figure 4 and Figure 5 As shown, the first air inlet 62 is disposed on the front side of the double-sided fan blade 61, the second air inlet 63 is disposed on the back side of the double-sided fan blade 61, and the exhaust assembly 6 also includes a third air inlet 65.

[0049] like Figure 12 As shown, Figure 12This is a schematic diagram of an explosion during inflation. During inflation, the air passage conversion component 5 is moved to the side of the air outlet 64 by turning the knob assembly 4. The vent valve 3 is connected to the air outlet 64 through the air passage conversion component 5 to form a first air passage. The air exchange port 2 is connected to the first air inlet 62 and the gap formed by the housing 1 and the exhaust assembly 6 to form a second air passage. The air exchange port 2, the gap formed by the third air inlet 65, the housing 1 and the exhaust assembly 6, and the second air inlet 63 form a third air passage. The external gas entering from the air exchange port 2 can enter the double-sided fan blade 61 through the second and third air passages for airflow acceleration, and then enter the inflatable product through the first air passage.

[0050] like Figure 13 As shown, Figure 13 This is a schematic diagram of an explosion in a deflated state. During deflation, the air duct conversion component 5 is moved to the side of the third air inlet 65 by turning the knob assembly 4. The vent valve 3 is connected to the third air inlet 65 through the air duct conversion component 5, and simultaneously connects to the second air inlet 63 through the gap formed by the housing 1 and the exhaust component 6 to form a fourth air duct. The vent valve 3, the gap formed by the air duct conversion component 5, the housing 1 and the exhaust component 6, and the first air inlet 62 form a fifth air duct. The air outlet 64 and the air exchange port 2 form a sixth air duct. The gas discharged from the inflated product can enter the double-sided fan blade 61 through the fourth and fifth air ducts for airflow acceleration, and then be discharged to the outside through the sixth air duct.

[0051] In this application, the inflation and deflation of the inflatable product can be achieved by moving the airway switching component 5 to connect it to the air outlet 64 or the third air inlet 65. Moreover, whether it is inflation or deflation, air can be circulated through multiple airways, thereby effectively increasing the airflow, reducing inflation and deflation time, and reducing power consumption.

[0052] Preferably, such as Figure 5 and Figure 7 As shown, the double-sided fan blade 61 has a baffle in the middle, which is used to cooperate with the first air inlet 62 and the second air inlet 63 to form several air intake passages.

[0053] By setting a baffle in the middle of the double-sided fan blade 61, the airflow can enter the double-sided fan blade 61 from the first air inlet 62 and the second air inlet 63 respectively for acceleration. This not only increases the airflow velocity but also the airflow volume, effectively reducing the inflation and deflation time and improving work efficiency.

[0054] Preferably, such as Figures 5-7As shown, the airway conversion assembly 5 has a partition plate 51 inside, which is used to connect with the ventilation valve 3 to control the opening and closing of the ventilation valve 3; the top of the airway conversion assembly 5 also has a protrusion 52, which is used to cooperate with the power switch 7 to control the power switch 7.

[0055] In this application, the partition plate 51 provided in the airway conversion component 5 can effectively control the gas to enter the exhaust component 6 through different routes for airflow acceleration, and can also realize the opening and closing of the ventilation valve 3. Furthermore, the top protrusion 52 of the airway conversion component 5 can also control the power switch 7 when the airway conversion component 5 moves, thereby making the structure of the entire air pump more compact. Only the control knob component 4 is needed to control the inflation, deflation, or stop status of the entire device, simplifying operation and improving the user experience.

[0056] Preferably, such as Figure 6 As shown, the ventilation valve 3 includes a top rod 31, and a control rod 32 is provided at the bottom of the top rod 31. The top of the control rod 32 is connected to the partition plate 51. When the exhaust assembly 6 is working, the partition plate 51 will give the top rod 31 a forward force to open the ventilation valve 3.

[0057] By utilizing the partition plate 51 and the top rod 31 to abut against each other, when the air passage conversion assembly 5 moves to the air outlet 64 or the third air inlet 65, the vent valve 3 will be opened to allow for inflation or deflation. When the air passage conversion assembly 5 is moved between the air outlet 64 and the third air inlet 65, the vent valve 3 will be closed, and the entire device will be in a stopped working state, effectively enhancing the stability and reliability of the air pump.

[0058] Preferably, such as Figure 6 As shown, the ventilation valve 3 also includes a cover 33, a spring 34, and a pressure plate 35 connected in sequence. The cover 33 has a hole for ventilation. The pressure plate 35 passes through the spring 34 and is connected to the cover 33. A sealing ring 36 is also fitted on the pressure plate 35 to prevent gas leakage. The pressure plate 35 is snapped together with the top rod 31. When the exhaust assembly 6 is working, the spring 36 is compressed under the pressure of the top rod 31, causing the pressure plate 35 to move toward the cover 33, thereby opening the ventilation valve 3.

[0059] In this application, when the vent valve 3 is opened, the pressure plate 35 is compressed by the top rod 31, causing the spring 36 to be compressed, thereby moving the pressure plate 35 toward the cover 33 and opening the vent valve 3, thus realizing the inflation and deflation of the inflatable product.

[0060] Preferably, such as Figure 7-8As shown, the exhaust assembly 6 also includes a bracket 8 and an air inlet cover 9. The double-sided fan blade 61 is disposed in the space formed by the air inlet cover 9 and the bracket 8. The first air inlet 62 is disposed on the bracket 8, and the second air inlet 63 is disposed on the air inlet cover 9.

[0061] In the exhaust assembly 6, the double-sided fan blades 61, together with the bracket 8 and the air inlet cover 9, enable the air pump device to form two air inlet channels, which can realize dual-path inflation and deflation, greatly increasing the airflow, reducing inflation and deflation time, and improving work efficiency.

[0062] Preferably, such as Figure 7-8 As shown, the air inlet cover 9 has an opening on one side above it and a closed surface on the other side above it; the bracket 8 has two openings on the side near the first air inlet 62 above it, one of which cooperates with the opening above the air inlet cover 9 to form a third air inlet 65, and the other opening cooperates with the closed surface above the air inlet cover 9 to form an air outlet 64; the bracket 8 has an opening on the side away from the first air inlet 62 above it, which is used to cooperate with the ventilation valve 3 to connect the air pump device and the inflation product.

[0063] The cooperation between the bracket 8 and the air inlet cover 9 allows gas to flow through a specific opening when inflating or deflating the product, thereby effectively increasing the flow rate and reducing the inflation / deflating time.

[0064] Preferably, such as Figure 7 As shown, the drive component 66 is a motor, which is located in the gap formed between the first air inlet 62 and the housing 1. It is connected to the power switch 7 via a power cord, thereby controlling the motor to drive the double-sided fan blades 61 to rotate.

[0065] Driven by the motor, the speed of the fan blades can be increased, thereby accelerating the airflow to be discharged quickly from the outlet, effectively improving the working efficiency of the entire air pump device.

[0066] Preferably, from Figure 3 and Figure 5As can be seen, the knob assembly 4 includes a knob cap 41, a rotating rod 42, a positioning ball 43, and a positioning spring 44. The knob assembly 5 is connected to the airway conversion assembly 5 via the rotating rod 42. The rotating rod 42 has three sequentially connected recessed positions. The positioning ball 43 is placed in the recessed position and connected to the knob cap 41 via the positioning spring 44. The recessed positions on both sides are spherical and their size fits the positioning ball 43. When the positioning ball 43 is in the recessed position on both sides, the rotating rod 42 drives the airway conversion assembly 5 to move outward. The air pump is positioned on one side of the air inlet 64 or the third air inlet 65, thus putting the air pump device into an inflated or deflated state. The recessed position in the middle gradually increases in depth from both sides towards the middle. When the positioning ball 43 is in the recessed position in the middle, the rotating rod 42 drives the air passage conversion component 5 to move between the air outlet 64 and the third air inlet 65, thus putting the air pump device in a stopped state. By turning the knob cap 41, the positioning ball 43 can be switched to the recessed position on both sides under the action of the positioning spring 44, thereby switching the working state of the air pump device.

[0067] By positioning the ball 43, the entire device can be controlled to be in an inflated, deflated, or stopped state when the knob cap 41 is turned, thus meeting different user needs and improving user experience.

[0068] Preferably, such as Figure 2 , Figure 3 and Figure 5 As shown, a pressure regulating component 10 is also provided on the top of the bracket 8, which is used to monitor the air pressure of the airway during inflation and deflation so that the air pump can automatically stop inflation and deflation. The pressure regulating component 10 includes a pressure regulating plate 101, a cap 102 and a screw 103. The screw 103 is located in the cap 102 and passes through the bottom of the cap 102. The distance between the bottom of the screw 103 and the pressure regulating plate 101 can be adjusted by turning the screw 103 to preset the air pressure value at which the air pump automatically stops inflation and deflation.

[0069] Thus, the pressure regulating component 10 can monitor the air pressure inside the air pump and automatically stop inflation and deflation. During inflation, the air pressure in the air passage of the device gradually increases, slowly pushing the pressure regulating plate 101 upward. When the pressure regulating plate 101 abuts against the screw 103, inflation is complete. At this time, the positioning ball 43 of the knob component 4 slides to the recessed position in the middle, stopping the air pump. During deflation, the air pressure in the air passage of the device gradually decreases, and the pressure regulating plate 101 slowly moves downward from the state of abutting against the screw 103. When the pressure regulating plate 101 and the screw 103 separate to the maximum distance, deflation is complete. At this time, the positioning ball 43 of the knob component 4 slides to the recessed position in the middle, stopping the air pump. This effectively saves energy and ensures that the air pump can work smoothly and efficiently.

[0070] Preferably, such as Figure 3 As shown, a wire storage box 11 is also provided inside the housing 1 for storing wires and other small parts. A cover plate 111 is also provided on the top of the housing 1, allowing items to be stored in the wire storage box 11 by opening the cover plate 111. This application provides a dedicated storage box for storing wires and small parts, making the wires inside the air pump neater and easier to maintain.

[0071] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A dual-channel air pump device for inflation and deflation, characterized in that, The air pump device includes: a housing (1), on which an air exchange port (2), an air valve (3), and a knob assembly (4) are provided; an air passage conversion assembly (5) and an exhaust assembly (6) are provided inside the housing (1); the air passage conversion assembly (5) is connected to the knob assembly (4) and a power switch (7) respectively; the air exchange port (2) is connected to the outside, and the air valve (3) is connected to the inflatable product; the exhaust assembly (6) includes a double-sided fan blade (61), a first air inlet (62), a second air inlet (63), an air outlet (64), and a drive assembly (66); gas enters the double-sided fan blade (61) from the first air inlet (62) and the second air inlet (63) for acceleration; When inflating, turn the knob assembly (4) to move the airway conversion assembly (5) so that the ventilation valve (3) is connected to the air outlet (64), and at the same time turn on the power switch (7) to start the drive assembly (66) to make the double-sided fan blade (61) rotate. The air exchange port (2) is connected to the first air inlet (62) and the second air inlet (63) respectively. When deflating, turn the knob assembly (4) to move the airway conversion assembly (5) so that the ventilation valve (3) is connected to the first air inlet (62) and the second air inlet (63) respectively. At the same time turn on the power switch (7) to start the drive assembly (66) to make the double-sided fan blade (61) rotate. The air outlet (64) is connected to the air exchange port (2).

2. The air pump device for dual-channel inflation and deflation according to claim 1, characterized in that, The first air inlet (62) is located on the front of the double-sided fan blade (61), the second air inlet (63) is located on the back of the double-sided fan blade (61), and the exhaust assembly (6) also includes a third air inlet (65). During inflation, the ventilation valve (3) is connected to the air outlet (64) through the airway conversion component (5) to form a first airway. The air exchange port (2) is connected to the first air inlet (62) and the gap formed with the housing (1) and the exhaust component (6) to form a second airway. The air exchange port (2) is connected to the third air inlet (65), the gap formed with the housing (1) and the exhaust component (6) and the second air inlet (63) to form a third airway. The external gas entering from the air exchange port (2) can enter the double-sided fan blade (61) through the second airway and the third airway for airflow acceleration, and then enter the inflatable product through the first airway. When deflated, the ventilation valve (3) is connected to the third air inlet (65) through the airway conversion component (5), and at the same time, it connects to the second air inlet (63) through the gap formed by the housing (1) and the exhaust component (6) to form the fourth airway; the ventilation valve (3) forms a fifth airway with the gap formed by the airway conversion component (5), the housing (1) and the exhaust component (6) and the first air inlet (62), and the air outlet (64) forms a sixth airway with the air exchange port (2). The gas discharged from the inflated product can enter the double-sided fan blade (61) through the fourth and fifth airways for airflow acceleration, and then be discharged to the outside through the sixth airway.

3. The air pump device for dual-channel inflation and deflation according to claim 1, characterized in that, The double-sided fan blade (61) is provided with a baffle in the middle, which is used to cooperate with the first air inlet (62) and the second air inlet (63) to form several air intake passages.

4. The air pump device for dual-channel inflation and deflation according to claim 1, characterized in that, The airway conversion assembly (5) has a partition plate (51) inside, which is used to connect with the ventilation valve (3) to control the opening and closing of the ventilation valve (3); the top of the airway conversion assembly (5) also has a protrusion (52), which is used to cooperate with the power switch (7) to control the power switch (7).

5. The air pump device for dual-channel inflation and deflation according to claim 4, characterized in that, The ventilation valve (3) includes a top rod (31), and a control rod (32) is provided at the bottom of the top rod (31). The top of the control rod (32) is connected to the partition plate (51). When the exhaust assembly (6) is working, the partition plate (51) will give the top rod (31) a forward force to open the ventilation valve (3).

6. The air pump device for dual-channel inflation and deflation according to claim 5, characterized in that, The ventilation valve (3) also includes a cover (33), a spring (34), and a pressure plate (35) connected in sequence. The cover (33) has a hole for ventilation. The pressure plate (35) passes through the spring (34) and is connected to the cover (33). A sealing ring (36) is also fitted on the pressure plate (35) to prevent gas leakage. The pressure plate (35) is snapped into the top rod (31). When the exhaust assembly (6) is working, the spring (34) is compressed under the pressure of the top rod (31), causing the pressure plate (35) to move toward the cover (33) and thus opening the ventilation valve (3).

7. The air pump device for dual-channel inflation and deflation according to claim 1, characterized in that, The exhaust assembly (6) also includes a bracket (8) and an air inlet cover (9). The double-sided fan blade (61) is disposed in the space formed by the connection between the air inlet cover (9) and the bracket (8). The first air inlet (62) is disposed on the bracket (8), and the second air inlet (63) is disposed on the air inlet cover (9).

8. The air pump device for dual-channel inflation and deflation according to claim 7, characterized in that, The air inlet cover (9) has an opening on one side above and a closed surface on the other side above; the bracket (8) has two openings on the side near the first air inlet (62), one of which cooperates with the opening above the air inlet cover (9) to form a third air inlet (65), and the other opening cooperates with the closed surface above the air inlet cover (9) to form an air outlet (64); the bracket (8) has an opening on the side away from the first air inlet (62) above, which is used to cooperate with the ventilation valve (3) to connect the air pump device and the inflation product.

9. The air pump device for dual-channel inflation and deflation according to claim 1, characterized in that, The knob assembly (4) includes a knob cap (41), a rotary rod (42), a positioning ball (43), and a positioning spring (44). The knob assembly (4) is connected to the airway conversion assembly (5) through the rotary rod (42). The rotary rod (42) has three recessed positions connected in sequence. The positioning ball (43) is placed in the recessed position and connected to the knob cap (41) through the positioning spring (44). The recessed position in the middle position gradually increases in depth from both sides to the middle. The recessed positions on both sides are spherical and their size fits the positioning ball (43).

10. A dual-channel inflation / deflation air pump device according to claim 7, characterized in that, A pressure regulating component (10) is also provided on the top of the bracket (8) to monitor the air pressure of the airway during inflation and deflation so that the air pump can automatically stop inflation and deflation. The pressure regulating component (10) includes a pressure regulating plate (101), a cap (102) and a screw (103). The screw (103) is located in the cap (102) and passes through the bottom of the cap (102). The distance between the bottom of the screw (103) and the pressure regulating plate (101) can be adjusted by turning the screw (103) to preset the pressure value at which the air pump can automatically stop inflation and deflation.

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