This application is a national stage application of PCT International Application No. PCT/IB2018/059009, filed Nov. 15, 2018, which claims priority to Chinese Application Serial No. 201721523732.4, filed Nov. 15, 2017, Chinese Application Serial No. 201711129250.5, filed Nov. 15, 2017, and Chinese Application Serial No. 201820730684.4, filed May 16, 2018, the disclosures of which are hereby expressly incorporated by reference herein in their entirety.
The present disclosure relates to air pumps for the inflation or deflation of inflatable products. More particularly, the present disclosure relates to multichannel air pumps for the inflation or deflation of an inflatable product with multiple inflatable chambers.
Inflatable products are common in households as a result of the convenience of storage or transportation when such products are in a deflated state coupled with the utility of such products when such products are in an inflated state. For example, air mattresses are often used in households for activities such as camping or providing overnight guests with a bed. Air mattresses are generally provided with at least one inflatable air chamber and may be inflated or deflated using a built-in pump.
Air mattresses may be provided with more than one inflatable chamber so that each chamber may be inflated to a different pressure for increased comfort. In such an air mattress, multiple pumps may need to be mounted on the air mattress, increasing the production cost, maintenance cost, and overall weight of the mattress, as well as lessening the convenience of the product.
The present disclosure provides a multichannel air pump for use with inflatable products with multiple inflatable chambers. Specifically, the present disclosure provides an air pump that may be used to selectively inflate or deflate individual chambers of an inflatable product to varying pressures.
According an exemplary embodiment of the present disclosure, a multichannel air assembly is provided for use with an inflatable product having at least a first chamber and a second chamber, the air assembly including: a main body forming a main body chamber and further including a first vent in communication with a surrounding environment, a first port in communication with the first chamber, and a second port in communication with the second chamber; a control mechanism coupled to the main body; a channel switching mechanism disposed in the main body and operably coupled to the control mechanism, the channel switching mechanism configured to place the main body chamber in selective communication with a selected one of the first and second ports; and an air pump assembly disposed in the main body in communication with the first vent and operably coupled to the control mechanism, the air pump assembly operable in: an inflation state in which the air pump assembly directs air from the surrounding environment to the selected port to inflate the corresponding chamber of the inflatable product; and a deflation state in which the air pump assembly directs air from the selected port to the surrounding environment to deflate the corresponding chamber of the inflatable product.
According another exemplary embodiment of the present disclosure, a multichannel air assembly is provided for use with an inflatable product having at least a first chamber and a second chamber, the air assembly including: a main body including a first port in communication with the first chamber and a second port in communication with the second chamber; a channel switching mechanism disposed in the main body and including a first rotating disc with a first vent hole and a second rotating disc with a second vent hole, the channel switching mechanism having: a first state in which the first and second rotating discs close the first and second ports; a second state in which the second vent hole in the second rotating disc partially opens a selected one of the first and second ports; and a third state in which the first vent hole in the first rotating disc and the second vent hole in the second rotating disc fully open the selected port; and an air pump assembly disposed in the main body, the air pump assembly operable in an inflation state in which the air pump assembly directs air to the selected port to inflate the corresponding chamber of the inflatable product and a deflation state in which the air pump assembly directs air from the selected port to deflate the corresponding chamber of the inflatable product.
According yet another exemplary embodiment of the present disclosure, a multichannel air assembly is provided for use with an inflatable product having at least two chambers, the air assembly including: a main body forming a main body chamber with an opening, the main body including at least two ports in respective communication with the at least two chambers; a main body panel covering the opening of the main body; a control panel coupled to the main body panel and comprising a vent and a control key operably connected to a circuit board; an air pump assembly disposed in the main body chamber, the air pump assembly including: a pump cover comprising an air inlet; a pump body cooperating with the pump cover to form an impeller chamber; an impeller disposed in the impeller chamber; and a pump motor comprising a rotating shaft disposed through the pump body and coupled to the impeller; a directional control valve disposed in the main body chamber and including: a first motor operably coupled to the circuit board; and a switching component movably disposed between the pump cover and the main body panel to place the air inlet of the pump cover in selective communication with the main body chamber or the vent of the control panel, the switching component operably coupled to the first motor; and a channel switching mechanism disposed in the main body chamber, the channel switching mechanism including: a second motor operably coupled to the circuit board, the second motor including a rotating shaft; a first rotating disc fixedly coupled to the rotating shaft and comprising a third vent in communication with the main body chamber; and a second rotating disc configured to selectively rotate with the first rotating disc, the second rotating disc including a fourth vent in selective communication with the at least two ports and the third vent of the first rotating disc.
The above-mentioned and other features and advantages of this disclosure, and the manner of attaining them, will become more apparent and will be better understood by reference to the following description of embodiments of the invention taken in conjunction with the accompanying drawings, wherein:
Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate exemplary embodiments of the invention and such exemplifications are not to be construed as limiting the scope of the invention in any manner.
Referring generally to
Referring to
A pump cover 1022 is coupled to the main body 1001 to fix the position of the air pump assembly 1002 in the main body chamber 1012. The pump cover 1022 cooperates with a pump body 1021 to form an impeller chamber 1431, which holds impeller 1024. The pump cover 1022 defines an inlet vent 1221 leading into the impeller chamber 1431 and an outlet vent 1222 leading from the impeller chamber 1431. The bottom of the impeller 1024 is coupled to a unidirectional air pump motor 1023 via a rotating shaft 1027 of the motor 1023. The rotating shaft 1027 of motor 1023 is disposed through the pump body 1021 so that motor 1023 is located below pump body 1021 and impeller 1024 is located above pump body 1021. In operation, when the user inputs a command to the control mechanism 1018 to operate the air pump assembly 1002, the circuit board 1311 operates the motor 1023 to rotate the impeller 1024, which pulls air into the inlet vent 1221 and discharges air from the outlet vent 1222.
Referring now to
Still referring to
The directional control valve 1025 further includes a plurality of baffles 1254, 1255, 1256 coupled to a connecting shaft 1257. The first baffle 1254 is positioned within the first air duct 1251 and is configured to selectively cover the first air hole 12511 to the second air duct 1252 (
In an inflation state, as seen in
In a deflation state, as illustrated in
Referring now to
Referring generally to
Still referring to
The channel switching mechanism 1003 further includes a first signal switch 1351, a second signal switch 1352, a third signal switch 1353, and a sensor 1036. The first signal switch 1351 includes a first contact 1354, the second signal switch 1352 includes a second contact 1355, and the third signal switch 1353 includes a third contact 1356. The first signal switch 1351 and the second signal switch 1352 are coupled to the rotating disc 1033 and are operably coupled to the circuit board 1311, while the third signal switch 1353 and the sensor 1036 are coupled to the seal disc 1034 and are operably coupled to the circuit board 1311. The circuit board 1311 may also include a counter (not shown) to monitor the signals from the first signal switch 1351, the second signal switch 1352, the signal switch 1353, and/or the sensor 1036.
The rotating disc 1033 includes one or more protrusions 1333 on the outer edge of the rotating disc 1033 configured to touch the first contact 1354 of the first signal switch 1351 and the second contact 1355 of the second signal switch 1352 at appropriate times during the operation of the channel switching mechanism 1003. In certain embodiments, the first contact 1354 and the second contact 1355 are offset from each other by about 45 degrees. In other embodiments, the first contact 1354 may be used alone without the second contact 1355, or vice versa.
The third contact 1356 of the third signal switch 1353 rests within an annular groove 1342 of the seal disc 1034 so that the third contact 1356 slides within the annular groove 1342 when the seal disc 1034 rotates. The annular groove 1342 further contains a positioning point 1344, which is configured to touch the third contact 1356 at appropriate times during the operation of channel switching mechanism 1003, such as when the second vent hole 1341 of the seal disc 1034 is offset from the ports 1014a-c. Additionally, seal disc 1034 includes a plurality of sensing apertures 1038 (
As illustrated in
The operation of channel switching mechanism 1003 will now be described with reference to
Next, the motor 1031 operates according to the current rotary position of the rotating disc 1033 relative to the desired rotary position of the rotating disc 1033 based on the user's input. The operation of the motor 1031 causes the rotating disc 1033 to rotate relative to the seal disc 1034, with the boss 1332 (
Then, the motor 1031 continues to rotate the rotating disc 1033 in the same direction, which also rotates the seal disc 1034 with the rotating disc 1033 due to the contact between the boss 1332 and the seal disc 1034. This step continues until the second vent hole 1341 of the seal disc 1034 is aligned with the specified port 1014b, as shown in
Next, motor 1031 reverses direction to rotate in the opposite direction, which releases the boss 1332 from contact with the seal disc 1034 and drives rotating disc 1033 to rotate alone independently of the seal disc 1034 as the boss 1332 travels freely through the arc-shaped groove 1343 in the seal disc 1034. This step continues until first vent hole 1331 of rotating disc 1033 is aligned with second vent hole 1341 of seal disc 1034 and the specified port 1014b, as shown in
As explained above in connection with
Referring generally now to
The channel switching mechanism 2003 has substantially the same structure as the channel switching mechanism 1003 of multichannel air assembly 1000. However, in this embodiment, a seal disc 2034 has a circular, single-channel vent hole 2341 (similar to the above-described vent hole 1341) which may be placed in selective communication with a single port 2014a-g, as well as an arcuate, multi-channel vent hole 2345 which may be placed in selective communication with more than one (e.g., three) of the ports 2014a-g simultaneously, allowing the inflation or deflation of a plurality of chambers Ca-g at one time. As a result, compared to the seal disc 1034, the seal disc 2034 includes additional sensing apertures 2038 corresponding to desired rotary positions of the single-channel vent hole 2341 that allows for a single port 2014a-g to be opened at one time and the multi-channel vent hole 2345 that allows for multiple ports 2014a-g to be opened at one time.
The operation of the channel switching mechanism 2003 is shown in
Referring generally to
The bottom of the main body chamber 3012 comprises ports 3014a and 3014b (
Still referring to
Referring specifically to
The driven gear disc 3023 is coupled to the pump cover 3041 and provided with a first axial vent 3231 and a second L-shaped vent 3232. The first axial vent 3231 comprises two openings on the driven gear disc 3023, with one opening located on an upper end face and one opening located on a lower end face of driven gear disc 3023. The second L-shaped vent 3232 also comprises two openings on the driven gear disc 3023, with one opening located on the lower end face and one opening located on a sidewall of driven gear disc 3023. The sidewall of driven gear disc 3023 is further provided with two sensed blocks 3233a-b configured to be detected by a first sensor 3024, which is positioned adjacent to the driven gear disc 3023 and is operably coupled to the circuit board 3311. In certain embodiments, the first sensor 3024 is an induction sensor or an optical sensor, for example.
Referring again to
Channel switching mechanism 3003 further includes a rotating disc 3033 with a first vent 3331 and a seal disc 3034 with a second vent 3341. A rotating shaft 3027 of the bidirectional motor 3031 is coupled to the rotating disc 3033 so that the bidirectional motor 3031 may drive the rotating disc 3033 to rotate in either direction via the rotating shaft 3027 (
Referring specifically to
During or after the above-described operation of the switching mechanism 3004 and the channel switching mechanism 3003, the motor 3044 of the air pump assembly 3002 pump body starts. The motor 3044 drives the impeller 3042 to rotate, so that the impeller 3042 draws external air into vent 3013 of the control panel 3011 and through air inlet 3121 of the main body panel 3112. The impeller 3042 further draws the air through the first vent 3231 of the driven gear disc 3023 and the air inlet 3411 of the pump cover 3041 to be drawn into impeller chamber 3431. The air may then move from the impeller chamber 3431 to main body chamber 3012 through air outlet 3412 of the pump cover 3041 and the second vent 3232 of the driven gear disc 3023. From main body chamber 3012, the air may move through vent 3331 of the rotating disc 3033 and the vent 3341 of the seal disc 3034. The air then is free to enter and inflate the specified chamber Ca of the inflatable product P via the corresponding port 3014a.
Otherwise, as shown by
During or after the above-described operation of the switching mechanism 3004 and the channel switching mechanism 3003, the motor 3044 of the pump body 3043 starts. The motor 3044 drives the impeller 3042 to rotate so that the impeller 3042 draws air within the specified chamber Ca of the inflatable product P through port 3014a, the vent 3341 of the seal disc 3034, and the vent 3331 of the rotating disc 3033 into main body chamber 3012. The impeller 3042 further draws the air through the second vent 3232 of the driven gear disc 3023 and the air inlet 3411 into impeller chamber 3431. The air may then move from the impeller chamber 3431 through air outlet 3412 of the pump cover 3041, the first vent 3231 of the driven gear disc 3023, the air outlet 3122, and the vent 3013 of the control panel 3011 into the surrounding environment to deflate the specified chamber Ca of the inflatable product P.
Referring to
The main body 3001 may also be provided with more than two ports 3014; correspondingly, it would be necessary to dispose more than two sensed blocks on each of the rotating disc 3033 and the seal disc 3034 of the channel switching mechanism 3003.
Referring generally to
The main body 4001 and the main body chamber 4012 of multichannel air assembly 4000 are structured similar to the main body 3001 and the main body chamber 3012 of the multichannel air assembly 3000 and are not described here in further detail, except that main body panel 4112 contains one combined inlet/outlet 4121 (
Still referring to
Referring specifically to
The translating valve 4026 is coupled to the driving gear disc 4022 through a rack 4234 and is provided with a fifth vent 4231, a sixth vent 4232, and a seventh vent 4233. The sixth vent 4232 of the translating valve 4026 is disposed between the fifth vent 4231 and the seventh vent 4233 and is L-shaped, with one opening of the sixth vent 4232 located on a lower end face of the translating valve 4026, and the other opening of the sixth vent 4232 located on a side end face of the translating valve 4026. One opening of the fifth vent 4231 is located on an upper end face of the translating valve 4026, and the other opening of the fifth vent 4231 is located on the lower end face of the translating valve 4026. One opening of the seventh vent 4233 is located on the upper end face of the translating valve 4026, and the other opening of the seventh vent 4233 is located on the lower end face of the translating valve 4026.
A sensor 4024 is located on a side edge of rack 4234 and is operably connected to circuit board 4311. In certain embodiments, the sensor 4024 is an induction sensor or an optical sensor, for example. Rack 4234 includes at least one sensed block (not shown) configured for detection by the sensor 4024. Additionally, a cover plate 4025 may be placed between the translating valve 4026 and the pump cover 4041. The cover plate 4025 includes an eighth vent 4251, which couples to the air inlet 4411 of pump cover 4041, and a ninth vent 4252, which couples to the air outlet 4412 of the pump cover 4041.
Referring to
During or after the above-described operation of the switching mechanism 4004 and the channel switching mechanism 4003, the specified port 4014a is in communication with the main body chamber 4012, and the motor 4044 of the air pump assembly 4002 starts. The motor 4044 drives impeller 4042 to rotate, so that the impeller 4042 draws external air into a vent 4013 of a control panel 4011, through inlet/outlet 4121 (
Otherwise, as shown in
During or after the above-described operation of the switching mechanism 4004 and the channel switching mechanism 4003, the motor 4044 of the air pump assembly 4002 starts. The motor 4044 drives the impeller 4042 to rotate so that the impeller 3042 draws air within the specified chamber Ca of the inflatable product P (
Referring to
Various features of the above-described multichannel air assemblies 1000-4000 may be selectively combined. For example, the multi-channel vent hole 2345 of the second multichannel air assembly 2000 may be incorporated into any of the other pumps.
While this invention has been described as having exemplary designs, the present invention can be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains and which fall within the limits of the appended claims.
Number | Date | Country | Kind |
---|---|---|---|
201711129250.5 | Nov 2017 | CN | national |
201721523732.4 | Nov 2017 | CN | national |
201820730684.4 | May 2018 | CN | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/IB2018/059009 | 11/15/2018 | WO |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2019/097453 | 5/23/2019 | WO | A |
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