Air pump device suitable for multi-cavity inflatable product

Abstract

The utility model relates to an air pump device suitable for a multi-cavity inflatable product, which structurally comprises a pump body shell arranged on the inflatable product and a fan arranged in the pump body shell, and is characterized in that the pump body shell is provided with an air exchange hole, a main air cavity air supply port and a plurality of auxiliary air cavity air supply ports; the main air cavity air supply port and the auxiliary air cavity air supply ports are provided with a main air cavity valve and auxiliary air cavity valves respectively, a turning pipe and a driving part in transmission connection with the turning pipe are movably arranged in the pump body shell, one end of the turning pipe is communicated with the main air cavity air supply port and the auxiliary air cavity air supply ports, and the other end of the turning pipe is communicated with the auxiliary air cavity air supply ports. And the other end of the turning pipe is respectively communicated with the air exhaust end and the air exhaust end of the fan through different displacement positions. According to the utility model, a plurality of air chambers in an inflatable product can be easily inflated and deflated by a single air pump, and the structure is further simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of air pumps for inflatable products, in particular to an air pump device suitable for multi-cavity inflatable products. Background Art

[0002] At present, the air pump of the prior art is often used to cooperate with the inflatable product, and the air pump is installed in the inflatable product to realize the automatic inflation of the inflatable product. Some large inflatable products are fixed with an inflatable air pump, and the inflatable air pump is provided with an air inlet. When inflating, the air inlet is opened, and the inflatable air pump can inflate the inner cavity of the inflatable product with gas. After the inflation is completed, the air inlet is closed to prevent the gas in the inflatable product from leaking out. When the inflatable product needs to be deflated, the deflation function of the air pump can be activated to automatically discharge the gas inside the inflatable product. With the increase in market demand, there are more and more inflatable products with multiple air chambers, such as inflatable sofas, inflatable beds, inflatable dolls, inflatable boats, etc., which are composed of multiple inflatable bodies. Such products generally use the largest part as the main air chamber, and the remaining smaller parts as auxiliary air chambers. Before use, the main air chamber and each auxiliary air chamber need to be inflated separately, and they can only be used normally after reaching the appropriate expansion degree. On the contrary, when disassembling, the main air chamber and each auxiliary air chamber also need to be deflated separately. Only after the deflation is completed can the inflatable product be disassembled and stored.

[0003] However, currently, most inflatable products with multiple air chambers adopt the method of installing air pumps separately to inflate and deflate each air chamber separately. This method will result in a large number of air pumps installed in an inflatable product, which is costly. Although some inflatable products are only equipped with one air pump, there are many air flow channels inside the air pump and the structure is relatively complex, which is not conducive to the assembly and maintenance of the air pump of the inflatable product. Utility Model Content

[0004] In view of this, the utility model provides an air pump device suitable for multi-cavity inflatable products, which can easily realize the inflation and deflation of multiple air chambers in the inflatable products by a single air pump, and the structure is further simplified.

[0005] The utility model discloses an air pump device suitable for multi-cavity inflatable products, comprising a pump body shell for installation on the inflatable product and a fan arranged in the pump body shell, characterized in that the pump body shell is provided with a ventilation hole, a main air cavity air supply port and a plurality of auxiliary air cavity air supply ports, the main air cavity air supply port and the auxiliary air cavity air supply port are respectively provided with a main air cavity valve and an auxiliary air cavity valve, a turning pipe and a driving component connected to the turning pipe in a transmission manner are movably arranged in the pump body shell, one end of the turning pipe is connected to the main air cavity air supply port and each auxiliary air cavity air supply port, and the other end of the turning pipe is respectively connected to the suction end and the exhaust end of the fan through different displacement positions.

[0006] According to an air pump device suitable for multi-cavity inflatable products of the utility model, a partition frame is arranged in the pump body shell, and the partition frame includes an upper side plate, a lower side plate and an intermediate vertical plate connected between the upper side plate and the lower side plate;

[0007] The opposite sides of the upper side plate divide an air blowing chamber and an air exhaust chamber inside the pump body shell, and one side of the middle vertical plate divides an air exchange chamber inside the pump body shell, and the air blowing chamber and the air exchange chamber, and the air exhaust chamber and the air exchange chamber are respectively separated by the middle vertical plate;

[0008] The ventilation hole is connected to the ventilation cavity, the middle vertical plate is provided with an air charging hole connected to the air blowing cavity and an air exhaust hole connected to the air extraction cavity, and one end of the bending pipe is respectively connected to the air exhaust hole and the air charging hole through different displacement positions;

[0009] A gas collection cavity connected to the main gas cavity air supply port and each auxiliary gas cavity air supply port is divided in the pump body shell on the side of the lower side plate facing away from the gas exchange cavity.

[0010] According to an air pump device suitable for multi-cavity inflatable products of the utility model, the fan includes a centrifugal impeller, the centrifugal impeller is arranged in the blowing cavity and the suction end in the middle of the centrifugal impeller is connected to the suction cavity.

[0011] According to the utility model, an air pump device suitable for multi-cavity inflatable products is provided on the lower side plate with a vertical pipe connected to the air collecting cavity; the inflation hole and the exhaust hole are arranged in a straight line along the extension direction of the vertical pipe; one end of the bending pipe is slidably sleeved in the vertical pipe and connected to the air collecting cavity, so that the bending pipe can be moved back and forth along the vertical pipe in a straight line, and the other end of the bending pipe is respectively connected to the inflation hole and the exhaust hole by moving the bending pipe back and forth along the vertical pipe in a straight line to different positions.

[0012] According to the utility model, an air pump device suitable for multi-cavity inflatable products, a first annular plate is integrally formed at the top of the upper side plate, and the first annular plate vertically extends to the inner wall of the pump body shell and encloses the inner wall of the pump body shell to form the blowing chamber; the upper side plate and the middle vertical plate respectively extend to the inner wall of the pump body shell and enclose the inner wall of the pump body shell to form the suction chamber.

[0013] According to an air pump device suitable for multi-cavity inflatable products of the utility model, the upper side plate is provided with a conducting hole connecting the blowing chamber and the exhaust chamber; the fan also includes a motor, and the motor and the centrifugal impeller are respectively located in the exhaust chamber and the blowing chamber and are coaxially connected to each other through the conducting hole.

[0014] According to the utility model, an air pump device suitable for multi-cavity inflatable products is provided in the air suction chamber, wherein the motor mounting plate corresponds to the conducting hole and is spaced a certain distance from the bottom of the upper plate; a plurality of connecting plates are fixedly connected between the upper plate and the motor mounting plate, each of the connecting plates surrounds the central axis of the conducting hole and is spaced a certain distance from each other; a plurality of screw holes and a rotating shaft hole allowing the output shaft of the motor to pass through are provided on the motor mounting plate.

[0015] According to an air pump device suitable for multi-cavity inflatable products of the utility model, a second annular plate is integrally formed at the bottom of the lower side plate, and the second annular plate vertically extends to the inner wall of the pump body shell and encloses the inner wall of the pump body shell to form the air collection cavity.

[0016] According to the utility model, an air pump device suitable for multi-cavity inflatable products:

[0017] The lower side plate is provided with a supplementary tube, and the ventilation cavity is connected with the air extraction cavity through the supplementary tube;

[0018] When the bend tube is connected to the inflation hole, the port on the supplementary tube located in the ventilation cavity is in an open state; when the bend tube is connected to the exhaust hole, the bottom plane of the bend tube covers and closes the port on the supplementary tube located in the ventilation cavity.

[0019] According to an air pump device suitable for multi-cavity inflatable products of the utility model, the driving component includes an electromagnetic switch, the bottom of the electromagnetic switch is fixed to the lower side plate of the partition frame, and the top of the bending tube is integrally formed with a hook, and the hook is buckled with the telescopic end of the electromagnetic switch to drive the bending tube to move by using the electromagnetic switch;

[0020] A fixing plate is also provided on the lower side plate, and the telescopic end of the electromagnetic switch passes upward through the through hole of the fixing plate and is interlocked with the hook, and a spring is provided between the top of the fixing plate and the bottom of the hook, and the spring is sleeved on the telescopic end of the electromagnetic switch.

[0021] The utility model discloses an air pump device suitable for multi-cavity inflatable products, wherein a movable turning pipe is arranged inside the pump body shell. Since one end of the turning pipe is connected to the main air cavity air supply port and each auxiliary air cavity air supply port at the same time, the main air chamber and each auxiliary air chamber of the inflatable product can be connected to the turning pipe through the main air cavity air supply port and each auxiliary air cavity air supply port of the air pump pump body shell. At the same time, since the other end of the turning pipe is respectively connected to the suction end and the exhaust end of the fan through different displacement positions of the turning pipe, it is equivalent to that the turning pipe moves to different positions and can be respectively connected to the suction end and the exhaust end of the fan. Therefore, as long as the turning pipe is controlled to switch to different working positions through the control system, the suction end and the exhaust end of the fan can act on the inside of the turning pipe respectively. When the turning pipe is controlled to move to the position connected to the exhaust end of the fan, the fan can input air into the turning pipe, so that the air enters the main air cavity air supply port and each auxiliary air cavity air supply port through the turning pipe, thereby realizing the simultaneous inflation of each air chamber of the inflatable product. On the contrary, by controlling the bend pipe to move to the position connected to the exhaust end of the fan, the fan can suck air from the inside of the bend pipe, and then extract the air from each air chamber of the inflatable product through the main air chamber air supply port and each auxiliary air chamber air supply port. In other words, the utility model can respectively realize the inflation and deflation of the main air chamber and all the auxiliary air chambers of the inflatable product by switching the working position of the bend pipe inside the air pump, so that a single air pump can be used to inflate and deflate multiple air chambers in the inflatable product, and the structure is further simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0023] Figure 1 It is the external structure diagram of the utility model;

[0024] Figure 2 It is a bottom structure diagram of the utility model;

[0025] Figure 3 It is a bottom structure diagram of the utility model;

[0026] Figure 4 This is the internal structure diagram of the utility model (the top cover of the pump housing is hidden);

[0027] Figure 5 This is the internal structure diagram of the utility model (the pump housing is hidden);

[0028] Figure 6 It is a structural diagram of a partition frame in the utility model;

[0029] Figure 7It is a structural schematic diagram of the utility model in which the partition frame divides the inside of the air pump body shell into a blowing cavity, an air extraction cavity, an air collection cavity and an air exchange cavity;

[0030] Figure 8 It is a structural diagram of the fan in the utility model;

[0031] Fig. 9 It is a structural diagram of a partition frame in the utility model;

[0032] Fig.10 It is the internal structure diagram of the utility model;

[0033] Fig.11 This is a state diagram of the bending pipe when it is connected to the inflation hole in the utility model;

[0034] Fig.12 This is a state diagram of the bending pipe when it is connected to the exhaust hole in the utility model.

[0035] Reference numerals:

[0036] 1. Pump housing, 2. Fan, 3. Control system, 4. Ventilation hole, 5. Main air chamber air supply port, 6. Auxiliary air chamber air supply port, 7. Main air chamber valve, 8. Auxiliary air chamber valve, 9. Bend pipe, 10. Separator, 11. Upper side plate, 12. Blowing chamber, 13. Suction chamber, 14. Centrifugal impeller, 15. Middle vertical plate, 16. Supplementary pipe, 17. Inflation hole, 18. Exhaust hole, 19. Lower side plate, 20 , air collecting chamber, 21, vertical pipe, 22, first annular plate, 23, conducting hole, 24, motor, 25, motor mounting plate, 26, connecting plate, 27, screw hole, 28, shaft hole, 29, second annular plate, 30, gap, 31, main air nozzle, 32, auxiliary air nozzle, 33, opening, 34, connecting pipe, 35, air exchange chamber, 36, electromagnetic switch, 37, hook, 38, fixing plate, 39, spring. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings.

[0038] like Figures 1 to 10As shown, an air pump device suitable for multi-cavity inflatable products, the structure of the air pump includes a pump body shell 1, the pump body shell 1 is used to be fixedly embedded in the inner cavity of the inflatable product, and a ventilation hole 4 is opened on the pump body shell 1, and the ventilation hole 4 is exposed on one side of the inflatable product, so that external air can enter the pump body shell 1 of the air pump, or the air inside the inflatable product can be output to the outside through the ventilation hole 4 of the air pump. Regarding the structure inside the pump body shell 1 of the air pump, a fan 2 and a control system 3 are installed in the pump body shell 1, and a main air cavity air supply port 5 and two auxiliary air cavity air supply ports 6 are opened at the bottom of the pump body shell 1, and the main air cavity air supply port 5 and the two auxiliary air cavity air supply ports 6 are all located in the inner cavity of the inflatable product. In addition, a main air nozzle 31 and two auxiliary air nozzles 32 are also installed at the bottom of the pump body shell 1, and the main air nozzle 31 is sleeved on the main air cavity air supply port 5, and the two auxiliary air nozzles 32 are respectively sleeved on each auxiliary air cavity air supply port 6. An opening 33 is provided on one side of the main air nozzle 31. The main air nozzle 31 is located in the main air chamber of the inflatable product. The inner cavity of the main air chamber can exchange air with the inside of the pump body shell 1 of the air pump through the opening 33 of the main air nozzle 31. A connecting pipe 34 is provided at the bottom of the two auxiliary air nozzles 32. The connecting pipe 34 is used to connect a hose (not shown in the figure). The other end of the hose is connected to the auxiliary air chamber of the inflatable product. The inner cavity of each auxiliary air chamber can exchange air with the inside of the pump body shell 1 of the air pump through the hose and the connecting pipe 34. In order to control the opening and closing of each air supply port of the air pump, the main air chamber air supply port 5 and the auxiliary air chamber air supply port 6 are respectively installed with a main air chamber valve 7 and an auxiliary air chamber valve 8. In addition, a turning pipe 9 and a driving component connected to the turning pipe 9 are movably installed in the pump housing 1. The driving component is controlled by the control system 3, so the movement of the turning pipe 9 is controlled by the control system 3. One end of the bottom of the turning pipe 9 is connected to the main air cavity air supply port 5 and each auxiliary air cavity air supply port 6, and one end of the top left of the turning pipe 9 is connected to the suction end and exhaust end of the fan 2 through different displacement positions of the turning pipe 9. In addition, an air pressure sensor (not shown in the figure) is arranged in the pump housing 1, and the control system 3 detects the air pressure data of the inflatable product through the air pressure sensor. During operation, when the turning pipe 9 is connected to the exhaust end of the fan 2, the fan 2 draws external air from the ventilation hole 4 into the pump housing 1 of the air pump, and the external air passes through the ventilation hole 4 and the turning pipe 9 in turn and enters the main air cavity air supply port 5 and each auxiliary air cavity air supply port 6, thereby inflating the main air chamber and each auxiliary air chamber of the inflatable product. On the contrary, when the bend pipe 9 is connected to the exhaust end of the fan 2, the fan 2 draws the internal air of the inflatable product through the bend pipe 9, and the air in the main air chamber and each auxiliary air chamber of the inflatable product enters the pump body shell 1 of the air pump through the main air cavity air supply port 5 and each auxiliary air cavity air supply port 6 respectively, and continues to be discharged to the outside through the bend pipe 9 and the ventilation hole 4.

[0039] It can be understood that the wire-controlled air pump of the utility model is provided with a movable turning pipe 9 inside the pump body shell 1, and the turning pipe 9 can be controlled to move by the control system 3. Since one end of the turning pipe 9 is connected to the main air cavity air supply port 5 and each auxiliary air cavity air supply port 6, the main air chamber and each auxiliary air chamber of the inflatable product can be connected to the turning pipe 9 through the main air cavity air supply port 5 and each auxiliary air cavity air supply port 6 of the air pump pump body shell. At the same time, since the other end of the turning pipe 9 is respectively connected to the suction end and the exhaust end of the fan 2 through different displacement positions of the turning pipe 9, It is equivalent to that the bend pipe 9 moves to different positions, and can be connected to the suction end and exhaust end of the fan 2 respectively. Therefore, as long as the control system 3 controls the bend pipe 9 to switch to different working positions, the suction end and exhaust end of the fan 2 can act on the inside of the bend pipe 9 respectively. By controlling the bend pipe 9 to move to the position connected to the exhaust end of the fan 2, the fan 2 can input air into the bend pipe 9, allowing the air to enter the main air cavity air supply port 5 and each auxiliary air cavity air supply port 6 through the bend pipe 9, so as to realize the simultaneous inflation of each air chamber of the inflatable product. On the contrary, by controlling the bend pipe 9 to move to the position connected to the suction end of the fan 2, the fan 2 can suck air from the bend pipe 9, and then extract the air from each air chamber of the inflatable product through the main air cavity air supply port 5 and each auxiliary air cavity air supply port 6. That is to say, the utility model can respectively realize the inflation and deflation of the main air chamber and all the auxiliary air chambers of the inflatable product by switching the working position of the bending pipe 9 inside the air pump. In this way, a single air pump can inflate and deflate multiple air chambers in the inflatable product, and the structure is further simplified.

[0040] In one embodiment, a partition frame 10 is fixedly installed in the pump housing 1. The partition frame 10 is mainly used to separate a plurality of different cavities in the internal space of the pump housing 1. Regarding the specific structure of the partition frame 10, the partition frame 10 includes an upper side plate 11 at the top and a lower side plate 19 at the bottom. A vertically extending middle vertical plate 15 is connected between the upper side plate 11 and the lower side plate 19. Among them, inside the pump housing 1, the upper and lower sides of the upper side plate 11 respectively divide the blowing chamber 12 and the exhaust chamber 13 inside the pump housing 1, and the right side of the middle vertical plate 15 divides the ventilation chamber 35 inside the pump housing 1. The ventilation chamber 35 is located on the upper side of the lower side plate 19, and the blowing chamber 12 and the ventilation chamber 35, and the exhaust chamber 13 and the ventilation chamber 35 are separated by the middle vertical plate 15 respectively. In addition, the ventilation hole 4 is connected to the ventilation cavity 35, and the middle vertical plate 15 is provided with an air filling hole 17 and an air exhaust hole 18, the air filling hole 17 is connected to the blowing cavity 12, the air exhaust hole 18 is connected to the air extraction cavity 13, and the left end of the top of the bending pipe 9 is respectively connected to the air exhaust hole 18 and the air filling hole 17 through different displacement positions. The fan 2 includes a centrifugal impeller 14, which is installed in the blowing cavity 12, and the air extraction end in the middle of the centrifugal impeller 14 is connected to the air extraction cavity 13, so when the centrifugal impeller 14 rotates, the air extraction end in the middle thereof can suck the air in the air extraction cavity 13, so that the air in the air extraction cavity 13 enters the blowing cavity 12. Therefore, when it is necessary to inflate the inflatable product, the control system 3 is used to control the bending pipe 9 to move to the position connected to the inflation hole 17, and at the same time, the fan 2 is started to drive the centrifugal impeller 14 located in the blowing chamber 12 to rotate, and the suction end in the middle of the centrifugal impeller 14 will continue to suck the air in the suction chamber 13, so that a negative pressure is formed inside the suction chamber 13, and the external air will naturally enter the ventilation chamber 35 inside the air pump through the ventilation hole 4 of the air pump, and enter the suction chamber 13 through the exhaust hole 18 on the middle vertical plate 15, so that the external air can continuously enter the suction chamber 13, and the centrifugal impeller 14 can drive the air entering the blowing chamber 12 to enter the bending pipe 9 through the inflation hole 17, and be transported to the main air chamber air supply port 5 and each auxiliary air chamber air supply port 6 at the bottom of the air pump through the bending pipe 9, so as to smoothly inflate the main air chamber and each auxiliary air chamber of the inflatable product.On the contrary, when it is necessary to deflate the inflatable product, the control system 3 controls the bend pipe 9 to move to the position connected to the exhaust hole 18, and at the same time, the fan 2 is started to drive the centrifugal impeller 14 located in the blowing chamber 12 to rotate. At this time, since the suction chamber 13 and the bend pipe 9 are interconnected through the exhaust hole 18, the suction end in the middle of the centrifugal impeller 14 continuously sucks the air in the suction chamber 13, and a negative pressure can be formed together with the suction chamber 13 and the inside of the bend pipe 9. The air in each air chamber in the inflatable product will naturally enter the air pump through the main air chamber air supply port 5 and each auxiliary air chamber air supply port 6 at the bottom of the air pump, and enter the blowing chamber 12 through the bend pipe 9 and the suction chamber 13, and then enter the ventilation chamber 35 through the inflation hole 17 on one side of the blowing chamber 12, and finally be discharged to the outside through the ventilation hole 4 on the air pump, thereby successfully achieving the deflation of the main air chamber and each auxiliary air chamber of the inflatable product.

[0041] In one embodiment, the lower side of the lower side plate 19 divides an air collection cavity 20 in the pump body shell 1, and the main air cavity air supply port 5 and each auxiliary air cavity air supply port 6 at the bottom of the air pump are connected to the air collection cavity 20. In addition, a vertical pipe 21 is integrally formed on the lower side plate 19, and the lower end of the vertical pipe 21 is connected to the air collection cavity 20. Fig.11 and Fig.12 As shown, during assembly, the lower end of the bend tube 9 is slidably sleeved in the vertical tube 21 and connected to the air collection chamber 20, so that the bend tube 9 can be moved back and forth in a straight line along the vertical tube 21. Since the inflation hole 17 and the exhaust hole 18 are arranged in a straight line along the extension direction of the vertical tube 21, the bend tube 9 can be moved back and forth in a straight line along the vertical tube 21 to different positions so that the top left end of the bend tube 9 can be connected to the inflation hole 17 and the exhaust hole 18 respectively. In the above structure, since the lower end of the bend tube 9 is slidably sleeved in the vertical tube 21 and connected to the air collection chamber 20, on the one hand, the stability of the bend tube 9 during movement can be ensured, and on the other hand, the bend tube 9 can be ensured to always remain connected to the air collection chamber 20 during movement, ensuring that each air chamber of the inflatable product can be connected to the bend tube 9 through the air collection chamber 20 during inflation or deflation.

[0042] Optionally, in order to facilitate the air pump to accurately detect the air pressure of the inflatable product during the inflation or deflation process, the air pressure sensor can be installed inside the bend pipe 9 or the air collection cavity 20.

[0043] Specifically, in order to ensure that the top of the upper side plate 11 of the partition frame 10 can divide the blowing cavity 12 inside the pump shell 1, a first annular plate 22 is also integrally formed on the top of the upper side plate 11. The first annular plate 22 vertically extends to the top inner wall of the pump shell 1 and encloses the inner wall of the pump shell 1 to form the blowing cavity 12, thereby realizing the formation of the blowing cavity 12 inside the pump shell 1. In addition, the edges of the upper side plate 11 and the middle vertical plate 15 extend to the inner wall of the pump shell 1 respectively, so as to enclose the inner wall of the pump shell 1 to form the suction cavity 13.

[0044] In addition, the upper side plate 11 is provided with a conducting hole 23 connecting the blowing chamber 12 and the exhaust chamber 13, so that the exhaust end in the middle of the centrifugal impeller 14 can be connected to the exhaust chamber 13. The fan 2 also includes a motor 24, which is respectively located in the exhaust chamber 13 and the blowing chamber 12 with the centrifugal impeller 14 and is coaxially connected to each other through the conducting hole 23.

[0045] Specifically, in order to facilitate the installation and fixation of the motor 24, a motor mounting plate 25 is provided in the air extraction chamber 13, and a plurality of screw holes 27 for connecting the motor 24 are provided on the motor mounting plate 25, and a shaft hole 28 for allowing the output shaft of the motor 24 to pass through is provided on the motor mounting plate 25. The position of the motor mounting plate 25 corresponds to the conducting hole 23, and the motor mounting plate 25 is spaced a certain distance from the bottom of the upper side plate 11. In order to ensure the fixation of the motor mounting plate 25, a plurality of connecting plates 26 are fixedly connected between the upper side plate 11 and the motor mounting plate 25, and each connecting plate 26 surrounds the central axis of the conducting hole 23 and is spaced a certain distance apart from each other, so that air exchange can be performed between the air extraction chamber 13 and the air blowing chamber 12 through each gap 30.

[0046] Specifically, a second annular plate 29 is integrally formed at the bottom of the lower side plate 19 , and the second annular plate 29 vertically extends downward to the inner wall of the pump body shell 1 , so as to enclose the inner wall of the pump body shell 1 to form the air collection cavity 20 .

[0047] Furthermore, a supplementary tube 16 is integrally formed on the upper part of the lower side plate 19, and the ventilation chamber 35 is connected to the air extraction chamber 13 through the supplementary tube 16. Specifically, the lower end of the supplementary tube 16 is connected to the air extraction chamber 13, and the upper end of the supplementary tube 16 is located in the ventilation chamber 35 and is connected to the ventilation chamber 35. When the bending tube 9 is docked with the inflation hole 17, the upper end of the supplementary tube 16 is in an open state. Therefore, when the air pump inflates the inflatable product, the external air entering the ventilation chamber 35 through the ventilation hole 4 can enter the air extraction chamber 13 through the exhaust hole 18 on the middle vertical plate 15, and can also enter the air extraction chamber 13 through the supplementary tube 16 at the same time, ensuring that the external air can enter the air extraction chamber 13 more fully, which helps to improve the inflation efficiency of the air pump for the inflatable product. On the contrary, when the bend tube 9 is connected to the exhaust hole 18, that is, when the air pump is deflating the inflatable product, the bottom plane of the bend tube 9 covers and closes the upper port of the supplementary tube 16, which can prevent the air entering the suction chamber 13 from the bend tube 9 from directly rushing out of the ventilation chamber 35 through the supplementary tube 16. Instead, it ensures that the leaked air in the suction chamber 13 can be efficiently and completely discharged to the outside under the active drive of the centrifugal impeller 14, thereby ensuring the deflation efficiency of the air pump for the inflatable product.

[0048] Furthermore, the driving component includes an electromagnetic switch 36, which is installed in the pump body shell 1 of the air pump. The electromagnetic switch 36 is controlled by the control system 3 of the air pump. The bottom of the electromagnetic switch 36 is fixed on the lower side plate 19 of the partition frame 10, and the top of the turning tube 9 is integrally formed with a hook 37, which is buckled to the telescopic end of the top of the electromagnetic switch 36, so that the electromagnetic switch 36 can drive the turning tube 9 to move. In addition, a fixed plate 38 is also provided on the lower side plate 19. The telescopic end of the electromagnetic switch 36 passes upward through the through hole of the fixed plate 38 and is buckled with the hook 37, and a spring 39 is provided between the top of the fixed plate 38 and the bottom of the hook 37. The spring 39 is sleeved on the telescopic end of the electromagnetic switch 36. When the electromagnetic switch 36 is energized, its telescopic end pulls the hook 37 and moves the entire turning tube 9 downward. At this time, the spring 39 is compressed, and the turning tube 9 remains in a state of docking with the exhaust hole 18, so that the air pump can deflate the inflatable product. When the electromagnetic switch 36 loses power, the hook 37 can be pushed by the restoring force of the spring 39 to restore and move up with the bending tube 9 and re-connect with the inflation hole 17, so that the air pump can inflate the inflatable product. Therefore, the different working positions of the bending tube 9 inside the pump body shell 1 can be easily switched.

[0049] The following is the control method of the air pump in this embodiment:

[0050] When the air pump of this embodiment is needed to inflate the main air chamber and all the auxiliary air chambers of the inflatable product, the following steps are performed:

[0051] S1. Open the main air chamber valve 7 and the auxiliary air chamber valve 8 through the control system 3 and start the fan 2. At the same time, control the movement of the turning pipe 9 to connect the turning pipe 9 to the exhaust end of the fan 2, that is, the turning pipe 9 is connected to the inflation hole 17, so as to drive the external air to enter the ventilation chamber 35, the suction chamber 13 and the blowing chamber 12 inside the air pump from the ventilation hole 4 in turn, and then enter the main air chamber air supply port 5 and each auxiliary air chamber air supply port 6 through the turning pipe 9.

[0052] S2. During the inflation process, when the air pressure data monitored by the air pressure sensor rises to a preset first threshold value, the control system 3 closes each auxiliary air chamber valve 8 to stop inflating each auxiliary air chamber of the inflatable product, and at the same time, the control system 3 keeps the main air chamber valve 7 open to keep the main air chamber of the inflatable product inflated.

[0053] S3. After the air pressure data monitored by the air pressure sensor rises to a preset second threshold value, the control system 3 closes the main air cavity valve 7 to stop inflating the main air chamber of the inflatable product, and at the same time, the control system 3 reopens each auxiliary air cavity valve 8 to continue inflating each auxiliary air chamber of the inflatable product.

[0054] S4. When the air pressure data monitored by the air pressure sensor rises to a preset third threshold, the control system 3 shuts down the fan 2 and closes each auxiliary air chamber valve 8 to stop inflating the main air chamber and each auxiliary air chamber of the inflatable product.

[0055] It can be understood that in the above control method, when it is necessary to inflate the main air chamber and all the auxiliary air chambers of the inflatable product, the main air chamber valve 7 and the auxiliary air chamber valve 8 are opened by the control system 3, the fan 2 is started, and the displacement position of the bending pipe 9 is controlled to make the bending pipe 9 connected to the exhaust end of the fan 2, so as to drive the external air to enter the inside of the air pump from the ventilation hole 4 and enter the main air chamber air supply port 5 and each auxiliary air chamber air supply port 6 through the bending pipe 9, and the main air chamber and each auxiliary air chamber of the inflatable product are respectively inflated through the main air chamber air supply port 5 and each auxiliary air chamber air supply port 6. In order to consider the large volume difference between the main air chamber and the auxiliary air chamber of the inflatable product, the control system of the air pump pre-sets the first threshold, the second threshold and the third threshold. During the inflation process, when the air pressure data monitored by the air pressure sensor rises to the preset first threshold, the control system 3 closes the valves 8 of each auxiliary air chamber and keeps the main air chamber valve 7 open, so as to stop the inflation of each auxiliary air chamber of the inflatable product and keep the inflation of the main air chamber of the inflatable product, which is equivalent to inflating each air chamber to a certain degree. After ensuring that all the air chambers of the inflatable product are expanded by the input air, the inflation of the smaller auxiliary air chambers is temporarily stopped to prevent the auxiliary air chambers of the inflatable product from over-expanding. At the same time, the main air chamber of the inflatable product continues to be inflated, allowing the larger main air chamber to continue to expand. When the air pressure data monitored by the air pressure sensor rises to the preset second threshold value, it reflects that the main air chamber of the inflatable product has reached a sufficient expansion state. At this time, the control system 3 closes the main air chamber valve 7 and opens the auxiliary air chamber valves 8 to stop inflating the main air chamber of the inflatable product. At this time, the air pump continues to inflate the auxiliary air chambers of the inflatable product that have not been fully expanded. In this way, the auxiliary air chambers of the inflatable product can be prevented from over-expanding. Finally, when the air pressure data monitored by the air pressure sensor rises to the preset third threshold value, the control system 3 shuts down the fan 2 and closes the auxiliary air chamber valves 8 to stop inflating the main air chamber and the auxiliary air chambers of the inflatable product, so that the air chambers of the inflatable product remain in an expanded state and can be put into normal use.

[0056] Furthermore, when it is necessary to use the air pump of this embodiment to deflate the main air chamber and all the auxiliary air chambers of the inflatable product, the following steps are performed:

[0057] S1, open the main air chamber valve 7 and the auxiliary air chamber valve 8 through the control system 3 and start the fan 2, and at the same time switch the displacement position of the bend pipe 9, so that the bend pipe 9 is connected to the exhaust end of the fan 2, that is, the bend pipe 9 is connected to the exhaust hole 18, so as to drive the air in the main air chamber and each auxiliary air chamber of the inflatable product from the main air chamber air supply port 5 and each auxiliary air chamber air supply port 6 into the bend pipe 9 and enter the exhaust chamber 13, the blowing chamber 12 and the ventilation chamber 35 inside the air pump in turn, and finally be discharged outward through the ventilation hole 4 of the air pump;

[0058] S2. When the air pressure data monitored by the air pressure sensor drops to a preset fourth threshold, the main air cavity valve 7 and the auxiliary air cavity valve 8 are closed through the control system 3 and the fan 2 is shut down.

[0059] Therefore, all the air chambers of the inflatable product can be deflated by the above method.

[0060] Furthermore, when it is necessary to continue to adjust and increase the air pressure of the main air chamber or the auxiliary air chamber of the inflatable product after the inflation is completed, perform the following steps:

[0061] The fan 2 is started by the control system 3 and the displacement position of the bend pipe 9 is switched, so that the bend pipe 9 is connected to the exhaust end of the fan 2, that is, the bend pipe 9 is connected to the inflation hole 17, and the main air cavity valve 7 or the auxiliary air cavity valve 8 is opened, and the fan 2 is used to drive the external air to enter the main air cavity air supply port 5 or the auxiliary air cavity air supply port 6 through the bend pipe 9 to inflate the main air chamber or the auxiliary air chamber of the inflatable product; after the inflation is completed, the fan 2 is shut down by the control system 3 and the main air cavity valve 7 or the auxiliary air cavity valve 8 is closed;

[0062] When the air pressure of the main air chamber or the auxiliary air chamber of the inflatable product needs to be adjusted and lowered after inflation is completed, perform the following steps;

[0063] The main air chamber valve 7 or the auxiliary air chamber valve 8 is opened through the control system 3, so that the air in the main air chamber or the auxiliary air chamber of the inflatable product enters the air pump through the bending pipe 9 and is naturally discharged out through the ventilation hole 4. At this time, since the fan 2 does not need to be started, it is more energy-saving and environmentally friendly.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Simple modification or equivalent replacement of each technical feature of the embodiment falls within the protection scope of the utility model.

Claims

1. An air pump device suitable for multi-cavity inflatable products, comprising a pump housing (1) for installation on the inflatable product and a fan (2) arranged in the pump housing (1), characterized in that: The pump body shell (1) is provided with a ventilation hole (4), a main air cavity air supply port (5) and a plurality of auxiliary air cavity air supply ports (6); the main air cavity air supply port (5) and the auxiliary air cavity air supply port (6) are respectively provided with a main air cavity valve (7) and an auxiliary air cavity valve (8); a bend pipe (9) and a driving component connected to the bend pipe (9) are movably provided in the pump body shell (1); one end of the bend pipe (9) is connected to the main air cavity air supply port (5) and each auxiliary air cavity air supply port (6); the other end of the bend pipe (9) is respectively connected to the suction end and the exhaust end of the fan (2) through different displacement positions.

2. The air pump device suitable for multi-cavity inflatable products according to claim 1, characterized in that: A partition frame (10) is arranged inside the pump body shell (1), and the partition frame (10) comprises an upper side plate (11), a lower side plate (19), and an intermediate vertical plate (15) connected between the upper side plate (11) and the lower side plate (19); The opposite sides of the upper side plate (11) divide an air blowing chamber (12) and an air extraction chamber (13) inside the pump body shell (1), and one side of the middle vertical plate (15) divides an air exchange chamber (35) inside the pump body shell (1), and the air blowing chamber (12) and the air exchange chamber (35) and the air extraction chamber (13) and the air exchange chamber (35) are respectively separated by the middle vertical plate (15); The ventilation hole (4) is connected to the ventilation cavity (35); the middle vertical plate (15) is provided with an air charging hole (17) connected to the air blowing cavity (12) and an air exhaust hole (18) connected to the air extraction cavity (13); one end of the bending pipe (9) is respectively connected to the air exhaust hole (18) and the air charging hole (17) through different displacement positions; A gas collection cavity (20) connected to the main gas cavity air supply port (5) and each auxiliary gas cavity air supply port (6) is divided in the pump body shell (1) on the side of the lower side plate (19) facing away from the gas exchange cavity (35).

3. The air pump device suitable for multi-cavity inflatable products according to claim 2, characterized in that: The fan (2) comprises a centrifugal impeller (14), the centrifugal impeller (14) is arranged in the blowing cavity (12), and the air suction end in the middle of the centrifugal impeller (14) is connected to the air suction cavity (13).

4. The air pump device suitable for multi-cavity inflatable products according to claim 2, characterized in that: The lower side plate (19) is provided with a vertical pipe (21) connected to the air collecting chamber (20); the inflation hole (17) and the exhaust hole (18) are arranged in a straight line along the extension direction of the vertical pipe (21); one end of the bending pipe (9) is slidably sleeved in the vertical pipe (21) and connected to the air collecting chamber (20), so that the bending pipe (9) can be moved back and forth along the vertical pipe (21) in a straight line, and the other end of the bending pipe (9) is respectively connected to the inflation hole (17) and the exhaust hole (18) by the bending pipe (9) being moved back and forth along the vertical pipe (21) in a straight line to different positions.

5. The air pump device suitable for multi-cavity inflatable products according to claim 4, characterized in that: A first annular plate (22) is integrally formed on the top of the upper side plate (11), and the first annular plate (22) vertically extends to the inner wall of the pump body shell (1) and is combined with the inner wall of the pump body shell (1) to form the blowing cavity (12); the upper side plate (11) and the middle vertical plate (15) respectively extend to the inner wall of the pump body shell (1) and are combined with the inner wall of the pump body shell (1) to form the suction cavity (13).

6. The air pump device suitable for multi-cavity inflatable products according to claim 3, characterized in that: The upper side plate (11) is provided with a conducting hole (23) communicating with the blowing chamber (12) and the exhaust chamber (13); the fan (2) further comprises a motor (24); the motor (24) and the centrifugal impeller (14) are respectively located in the exhaust chamber (13) and the blowing chamber (12) and are coaxially connected to each other through the conducting hole (23).

7. The air pump device suitable for multi-cavity inflatable products according to claim 6, characterized in that: A motor mounting plate (25) is arranged in the air extraction cavity (13), the motor mounting plate (25) corresponds to the conducting hole (23) and is spaced a certain distance from the bottom of the upper plate (11); a plurality of connecting plates (26) are fixedly connected between the upper plate (11) and the motor mounting plate (25), each of the connecting plates (26) surrounds the central axis of the conducting hole (23) and is spaced a certain distance (30) from each other; a plurality of screw holes (27) and a rotating shaft hole (28) are arranged on the motor mounting plate (25) to allow the output shaft of the motor (24) to pass through.

8. The air pump device suitable for multi-cavity inflatable products according to claim 2, characterized in that: A second annular plate (29) is integrally formed at the bottom of the lower side plate (19), and the second annular plate (29) vertically extends to the inner wall of the pump body shell (1) and encloses the inner wall of the pump body shell (1) to form the air collection cavity (20).

9. The air pump device suitable for multi-cavity inflatable products according to claim 2, characterized in that: The lower side plate (19) is provided with a supplementary tube (16), and the ventilation cavity (35) and the air extraction cavity (13) are connected through the supplementary tube (16); When the bend tube (9) is connected to the inflation hole (17), the port on the supplementary tube (16) located in the ventilation chamber (35) is in an open state; when the bend tube (9) is connected to the exhaust hole (18), the bottom plane of the bend tube (9) covers and closes the port on the supplementary tube (16) located in the ventilation chamber (35).

10. The air pump device suitable for multi-cavity inflatable products according to claim 2, characterized in that: The driving component comprises an electromagnetic switch (36), the bottom of the electromagnetic switch (36) is fixed on the lower side plate (19) of the partition frame (10), and the top of the bending tube (9) is integrally formed with a hook (37), and the hook (37) is buckled with the telescopic end of the electromagnetic switch (36) so as to drive the bending tube (9) to move by using the electromagnetic switch (36); A fixing plate (38) is also provided on the lower side plate (19), and the telescopic end of the electromagnetic switch (36) passes upward through the through hole of the fixing plate (38) and is interlocked with the hook (37), and a spring (39) is provided between the top of the fixing plate (38) and the bottom of the hook (37), and the spring (39) is sleeved on the telescopic end of the electromagnetic switch (36).

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