The present application claims priority from Chinese Patent Application No. 202210866449.0 filed on Jul. 22, 2022, all of which are hereby incorporated herein by reference.
The present invention relates to the technical field of air pumps, and particularly relates to a built-in air pump with rapid inflation and deflation for an inflatable product.
Currently, some inflatable products on the market are provided with an inflation air pump therein. The inflation air pump has an air inlet which can be opened during inflation for filling the inner cavity of the inflatable product with air. After inflation is completed, the air inlet is closed to prevent the air from leaking out. When it is desired to deflate the inflatable product, the air inside the inflatable product is automatically discharged.
However, in order to achieve inflation and deflation, the air pump disposed in the inflatable product generally includes an inflation channel and a deflation channel, which each communicates with a fan, so that inflation and deflation of the inflatable product can be achieved by the inflation channel and a deflation channel with the respective fan. Therefore, such air pump is often provided with two motors and two fans inside, which requires support elements to equip the motors and fans, and associated control circuit, causing complex internal structure of the air pump and higher production costs. In addition, with two fans and two motors, the whole volume of the air pump will become larger, resulting in larger mounting space in the inflatable product, such air pump thus cannot used in small inflatable products, which will limit application of the air pump.
In order to reduce the overall volume of the air pump, some improved air pumps have removed the deflection function, and only inflation function are remained. However, such way by reducing structure to lower the volume will undoubtedly affect use experience of the inflatable product, such as inconvenience in use.
The present invention thus provides a built-in air pump with rapid inflation and deflation and an inflatable product with the same, which has inflation function and deflation function simultaneously, with simplified internal structure and lower production costs, and has lower overall volume of the air pump and lower transportation costs of the product accordingly.
According to the present invention, on one aspect, a built-in air pump with rapid inflation and deflation for an inflatable product is provided, which includes a first channel, a second channel and a centrifugal fan. A first air hole and a third air hole are formed in the first channel. A second air hole and a fourth air hole being formed in the second channel. A suction end of the centrifugal fan abuts against the first channel, and an exhaust end of the centrifugal fan abuts against the second channel.
When the built-in air pump is disposed in the inflatable product, the first air hole and the second air hole are externally communicated with the outside of the inflatable product, and the third air hole and the fourth air hole are internally communicated with an inner cavity of the inflatable product.
When inflation of the inflatable product is required, the centrifugal fan is started to operate, meanwhile the first air hole and the fourth air hole are opened and the second air hole and the third air hole are closed, so that the air outside the inflatable product is sucked into the first channel through the first air hole by the centrifugal fan, and further pushed to the second channel and delivered to the inner cavity of the inflatable product through the fourth air hole by the centrifugal fan. Once the inflation is completed, the first air hole and the second air hole are closed to prevent the air in the inflatable product from leaking to the outside.
When deflation of the inflatable product is required, the centrifugal fan is started to operate, meanwhile the third air hole and the second air hole are opened and the first air hole and the fourth air hole are closed, so that the air in the inner cavity of the inflatable product are sucked into the first channel through the third air hole by the centrifugal fan, and further pushed into the second channel and discharged to the outside through the second air hole by the centrifugal fan.
According to the present invention, only one fan and thus one associated motor are required to achieve inflation function and deflation function, and an associated control circuit required can also be more simplified, which results in simplified internal structure of the air pump and lower production costs of the air pump. Accordingly, the overall volume of the air pump is reduced, thus avoiding excessive mounting space in the inflatable product, which is better adaptable to small inflatable products.
On another aspect, an inflatable product with such built-in air pump is further provided.
In order to more clearly explain the technical solution of the present invention, the accompanying drawings which are required to be used in the embodiments will be briefly introduced below.
The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and cannot be construed as limiting the present invention.
A built-in air pump with rapid inflation and deflation is provided in
Referring to
In combination with
In combination with
Specifically, as shown in
According to one embodiment, on the one hand, the interior of the housing 1 of the air pump is divided to form the first channel 2 and the second channel 3, the centrifugal fan 8 is mounted in the housing 1 in a way that the exhaust end of the centrifugal fan 8 is placed in the second channel 3, and the suction end of the centrifugal fan 8 is placed in the first channel 2. On the other hand, the first air hole 4, the second air hole 5, the fourth air hole 6 and the third air hole 7 are respectively formed on the housing 1. When the air pump is mounted on the inflatable product 100, the first air hole 4 and the second air hole 5 respectively communicate with the outside of the inflatable product 100, so that the air outside the inflatable product can enter the air pump through the first air hole 4, and the air inside the air pump can also be discharged outward through the second air hole 5 to the outside; and the fourth air hole 6 and the third air hole 7 respectively communicate with the inner cavity of the inflatable product 100, so that the air pump can inflate the inner cavity of the inflatable product 100 through the fourth air hole 6 to achieve inflation, and the air in the inner cavity of the inflatable product 100 can also be sucked out through the third air hole 7 to achieve deflation effect.
When inflation is required, the centrifugal fan 8 is started to operate, meanwhile the first air hole 4 and the fourth air hole 6 are opened and the second air hole 5 and the third air hole 7 are closed, the air outside is sucked into the first channel 2 through the first air hole 4 by the centrifugal fan 8, then the air is pushed to the second channel 3 and delivered to the inner cavity of the inflatable product 100 through the fourth air hole 6 the centrifugal fan 8. After inflation is completed, the first air hole 4 and the second air hole 5 are closed to prevent the air from leaking to the outside. When deflation is required, the centrifugal fan 8 is started to operate, meanwhile the third air hole 7 and the second air hole 5 are opened and the first air hole 4 and the fourth air hole 6 are closed, the air in the inner cavity of the inflatable product is sucked into the first channel 2 through the third air hole 7 by the centrifugal fan 8, then the air is pushed into the second channel 3 and discharged to the outside through the second air hole 5 by the centrifugal fan 8.
Therefore, with such configuration, only one fan and one associated motor is required to achieve inflation function and deflation function, and an associated control circuit required can also be more simplified, resulting in simplified internal structure of the air pump and lower production costs of the air pump. Accordingly, the overall volume of the air pump is reduced, thus avoiding excessive mounting space in the inflatable product, which is better adaptable to small inflatable products.
According to one embodiment, a control mechanism and a valve mechanism are further included. The movable valves in the valve mechanism are respectively controlled by the control mechanism, so that each movable valve in the valve mechanism is respectively controlled by the control mechanism to open or close the first air hole 4, the second air hole 5, the third air hole 7 and the fourth air hole 6. The first air hole 4, the second air hole 5, the third air hole 7, and the fourth air hole 6 thus can be opened or closed in cooperation with each other during inflation and deflation. As shown in
According to this embodiment, the first movable valve 9 and the second movable valve 10 are respectively mounted in the housing 1 of the air pump, in a way that the first air hole 4 and the third air hole 7 can be alternately closed by the back-and-forth reciprocating movement of the first movable valve 9 (namely, when the first movable valve 9 moves to the first air hole 4, the first air hole 4 is closed and the third air hole 7 is in an open state, conversely, when the first movable valve 9 moves to the third air hole 7, the third air hole 7 is closed and the first air hole 4 is in an open state), and the second air hole 5 and the fourth air hole 6 can be alternately closed by the back-and-forth reciprocating movement of the second movable valve 10 (namely, when the second movable valve 10 moves to the second air hole 5, the second air hole 5 is closed and the fourth air hole 6 is in an open state, conversely, when the second movable valve 10 moves to the fourth air hole 6, the fourth air hole 6 is closed and the second air hole 5 is in an open state).
With such configuration, referring to
With reference to
Conversely, with reference to
According to one embodiment, as shown in
According to one embodiment, as shown in
As shown in
According to one embodiment, an elastic mechanism is connected with the valve mechanism in a transmission mode, so that the valve mechanism can be driven by the elastic force of the elastic mechanism to keep the first air hole 4 and the second air hole 5 closed respectively, air in the inner cavity of the inflatable product 100 thus can be prevented from leaking, making the inflatable product 100 in an expanded state.
As shown in
It can be understood that the first movable valve 9 and the second movable valve 10 can be urged to respectively keep the first air hole 4 and the second air hole 5 closed with the elastic pushing force of the first spring 11 and the second spring 12, so that the first air hole 4 and the second air hole 5 can be kept in a normally closed state. Especially when inflation of the air pump device is finished, the first spring 11 can be reset to push the first movable valve 9 back to the original position as long as the controlling force on the first movable valve 9 is released, so that the first air hole 4 is re-closed, preventing the air in the inner cavity of the inflatable product 100 from leaking out, and maintaining the expanded state of the inflatable product 100.
A rotating body 13 is connected between the control mechanism and the valve mechanism in a transmission mode. The rotating body 13 is driven by the control mechanism to rotate forward and reverse, the first movable valve 9 and the second movable valve 10 are in turn respectively driven by the forward and reverse rotation of the rotating body 13 to move. With such easy way, the first movable valve 9 and the second movable valve 10 can be respectively controlled to move with the rotating body 13, which is simple in structure and easy in operation.
According to one embodiment, as shown in
Specifically, as shown in
With such configuration, the first movable valve 9 and the second movable valve 10 can be driven to move by overcoming the elastic force by controlling the forward and reverse rotation of the rotating body 13 alternatively, that is, the first movable valve 9 and the second movable valve 10 can be selectively driven as long as the rotation direction of the rotating body 13 is controlled, thus achieving the inflation and deflation of the air pump device with convenient operation. When rotating body 13 is stopped to be controlled, the rotating body 13 will not continue to push the first movable valve 9 and the second movable valve 10, and at this moment, the first spring 11 and the second spring 12 thus can push the first movable valve 9 and the second movable valve 10 to conduct reset movement, the first air hole 4 and the second air hole 5 thus will be re-closed. Therefore, with such configuration, the reciprocating movement of the first movable valve 9 can be easily achieved (realizing that the first movable valve 9 closes the first air hole 4 and the third air hole 7 alternately by the reciprocating movement) and the reciprocating movement of the second movable valve 10 can be achieved (realizing that the second movable valve 10 closes the second air hole 5 and the fourth air hole 6 alternately by the reciprocating movement), thus achieving inflation and deflation of the air pump device.
According to one embodiment, the control mechanism includes a knob switch 14 and a shifting lever 15. The shifting lever 15 is arranged on the knob switch 14 and can rotate with the knob switch 14, and the shifting lever 15 can shift the rotating body 13 to conduct forward and reverse rotation with the knob switch 14. Therefore, the rotating body 13 can be driven to generate forward and reverse rotation by controlling the knob switch 14 during operation.
As shown in
That is to say, in the present embodiment, referring to
It can be understood that, with the above-mentioned configuration, the knob switch 14 can be linked with the first movable valve 9 and the second movable valve 10, respectively, under the transmission action of the shifting lever 15 and the butterfly plate 17, i.e. the movement of the first movable valve 9 and the second movable valve 10 can be controlled by the knob switch 14. When using the air pump, the first movable valve 9 and the second movable valve 10 can be alternately driven to respectively overcome the elastic force to move by controlling the forward and reverse rotation of the knob switch 14 outside the air pump, that is, the first movable valve 9 and the second movable valve 10 can be selectively driven as long as the rotation direction of the knob switch 14 is controlled, thus achieving inflation and deflation of the air pump device with convenient operation.
As shown in
According to this embodiment, the length directions of the shifting lever 15, the first spring 11 and the second spring 12 are respectively perpendicular to the rotation plane of the knob switch 14, and the shifting lever 15 is formed to be parallel to the first spring 11 and the second spring 12 respectively. With such configuration, when the butterfly plate 17 is in a deflected state (clockwise or counterclockwise state), as shown in
As shown in
It can be understood that the first mounting sleeve 20 can limit the first movable valve 9 to move in a linear direction, and the second mounting sleeve 21 can limit the second movable valve 10 to move in a linear direction. With the above-mentioned configuration, it is possible to easily realize that the first air hole 4 and the third air hole 7 can be alternately closed by the first movable valve 9 in linear reciprocating movement, and it is also possible to easily realize that the second air hole 5 and the fourth air hole 6 can be alternately closed by the second movable valve 10 in linear reciprocating movement.
As shown in
As shown in
Similarly, the second movable valve 10 includes a second valve plate 25, a second spring bearing 26 and a second side valve plate 27. The second valve plate 25 is sleeved with the second mounting sleeve 21 in a sliding mode, the second spring bearing 26 is fixed to the bottom plate surface of the second valve plate 25 and located in the second mounting sleeve 21, the second side valve plate 27 may be integrally formed on the side edge of the second valve plate 25 and correspondingly on one side of the fourth air hole 6, and the second spring 12 is sleeved on the second spring bearing 26 and can elastically drive the second valve plate 25 to keep the second air hole 5 closed. In combination with
As shown in
As shown in
As shown in
It can be understood that the rotation of the knob switch 14 cannot only drive the shifting lever 15 to deflect the butterfly plate 17, but also can make each shifting plate 29 to synchronously trigger the electric control switch 28 to start the rotating motor 45 and drive the centrifugal fan 8, so that the inflation and deflation of the air pump device can be realized more easily.
As shown in
In combination with
As shown in
The rib 35 may be integrally formed on the surface of the butterfly plate 17, which means that a groove body corresponding to the rib 35 is also formed on a plastic mold for producing the butterfly plate 17. The cross section of the groove body is also in form of triangle, so that mold repairing can be facilitated, namely, by processing and adjusting the depth of the groove body, the height of the rib 35 can be adjusted, which ensures that the rib 35 inside the produced air pump device can abut against the shifting lever 15, and further ensure that the shifting lever 15 can push the butterfly plate 17, thus further beneficial to the production and assembly of air pump products.
Referring to
The configuration that the first transmission plate 36 and the second transmission plate 37 are integrally formed on the surfaces of the first valve plate 22 and the second valve plate 25, respectively, means that groove bodies corresponding to the first transmission plate 36 and the second transmission plate 37 are respectively formed on the produced plastic mold, so that mold repairing can be facilitated. Namely, the height of the first transmission plate 36 or the second transmission plate 37 can be adjusted by processing and adjusting the depth of the groove body, which ensures that the first transmission plate 36 and the second transmission plate 37 inside the produced air pump device can always abut against the butterfly plate 17, and further ensures that the butterfly plate 17 can push the first valve plate 22 and the second valve plate 25, thus further beneficial to the production and assembly of the air pump products.
Referring to
Based on the above mentioned, as shown in
When inflation of the inflatable product 100 is required, the knob switch 14 is manually controlled to rotate clockwise, the shifting lever 15 is driven to swing and the butterfly plate 17 is pushed to deflect counterclockwise, and the first valve plate 22 is accordingly pushed to move downward, so that the first valve plate 22 opens the first air hole 4, and the first side valve plate 24 is driven to close the third air hole 7. Meanwhile, the centrifugal fan 8 is also rotated. Under the suction of the suction end of the centrifugal fan 8, the air outside enters the first air hole 4 through the through hole 33 in the panel 31, and then enter the first channel 2 inside the air pump through the first air hole 4, At the same time, under the pushing action of the exhaust end of the centrifugal fan 8, the air entering the first channel 2 can be pushed into the second channel 3, and as the airflow flows, the air in the second channel 3 can continuously enter the inner cavity of the inflatable product 100 through the fourth air hole 6, thus achieving inflation.
When inflation is completed, the knob switch 14 is reset and rotated to an intermediate position, the shifting plate 29 also synchronously leaves the electric control switch 28 to stop rotation of the centrifugal fan 8. At the same time, under the resetting pushing action of the first spring 11, the first valve plate 22 is pushed to reset and move upward, so that the first air hole 4 is re-closed. At this moment, the first air hole 4 and the second air hole 5 are both in a closed state, so that the first channel 2 and the second channel 3 inside the air pump cannot communicate with the outside, the entire air pump thus is in a closed state, ensuring that the air in the inner cavity of the inflatable product 100 cannot leak outwards, and the inflatable product 100 can be kept in the inflated state.
When deflation of the inflatable product 100 is required, the knob switch 14 is manually controlled to rotate counterclockwise, the shifting lever 15 is driven to swing and the butterfly plate 17 is pushed to deflect clockwise, and the second valve plate 25 is accordingly pushed to move downwards, so that the second valve plate 25 opens the second air hole 5, and the second side valve plate 27 is driven to close the fourth air hole 6. Meanwhile, the centrifugal fan 8 is also rotated, under the suction of the suction end of the centrifugal fan 8, the air in the inner cavity of the inflatable product can enter the first channel 2 inside the air pump via the third air hole 7. At the same time, under the pushing effect of the exhaust end of the centrifugal fan 8, the air entering the first channel 2 can be pushed into the second channel 3, and as the airflow flows, the air in the second channel 3 can continue to flow to the through hole 33 in the panel 31 through the second air hole 5, and is finally discharged to the outside through the through hole 33 in the panel 31, thus achieving deflation.
An inflatable product 100 including such built-in air pump is also provided according to an embodiment.
It should be explained that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. Those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Number | Date | Country | Kind |
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202210866449.0 | Jul 2022 | CN | national |
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