Inflatable sponge cushion

Abstract

The utility model relates to the field of inflatable cushions, in particular to an inflatable sponge cushion which comprises a top piece, a bottom piece, a side surrounding piece and a bed body cotton cushion, the peripheral edge of the top piece is connected with the top of the side surrounding piece, the peripheral edge of the bottom piece is connected with the bottom of the side surrounding piece, an air cavity is defined by the top piece, the bottom piece and the side surrounding piece, and the bed body cotton cushion is arranged in the air cavity. The upper surface of the bed body cotton pad is fixedly connected with the lower surface of the top piece, and the lower surface of the bed body cotton pad is fixedly connected with the upper surface of the bottom piece; the side surrounding piece is provided with an air suction and pumping assembly. The bed body cotton cushion provides stable supporting performance and using comfort, so that the inflatable sponge cushion is convenient to carry and has good comfort, the situation that the bed body deforms or locally collapses due to uneven pressure in the using process is not prone to occurring, and due to the heat retention property of the bed body cotton cushion, the inflatable sponge cushion can be suitable for autumn and winter; the practicability is high.

Description

Technical Field

[0001] This application relates to the field of inflatable pads, and in particular, to an inflatable sponge pad. Background Art

[0002] Inflatable mattresses are favored for outdoor activities and home use due to their portability and easy storage. Most sleeping pads on the market are inflatable, formed by a top sheet, a bottom sheet, and side sheets sealed together to form a closed air chamber for the inflation function of the mattress. After being fully inflated, the inflatable sleeping pad expands for use. However, during long-term use of traditional inflatable mattresses, due to uneven weight distribution or body movement of users, it often causes imbalance in the internal pressure of the inflatable mattress, resulting in mattress deformation and affecting the comfort of use.

[0003] In response to this, there are currently inflatable column structures or multiple wire-pulling structures with a grid layout on the market to improve the support of the mattress. However, the inflatable column structure also adjusts the support of the mattress by inflating or deflating, and it is also prone to uneven local pressure on the mattress due to uneven weight distribution or body movement during use; while the wire-pulling structure will pull the connection points between it and the top sheet and the bottom sheet inward after the mattress is inflated, causing several concave connection points on the surface of the mattress, reducing the flatness of the sleeping area of the mattress and the comfort. Summary of the Utility Model

[0004] To solve the problem of the support stability of the inflatable mattress, this application provides an inflatable sponge pad.

[0005] An inflatable sponge pad provided by this application adopts the following technical solution:

[0006] An inflatable sponge pad includes a top sheet, a bottom sheet, side sheets, and a mattress sponge pad. The four peripheral edges of the top sheet are connected to the top of the side sheets, the four peripheral edges of the bottom sheet are connected to the bottom of the side sheets. The top sheet, the bottom sheet, and the side sheets enclose to form an air chamber. The mattress sponge pad is arranged in the air chamber, and the upper surface of the mattress sponge pad is fixedly connected to the lower surface of the top sheet, and the lower surface of the mattress sponge pad is fixedly connected to the upper surface of the bottom sheet; the side sheets are provided with a pumping air assembly.

[0007] By adopting the above technical solution, the mattress sponge pad provides stable support and comfort for the bed body, and the fixed connection of the mattress sponge pad with the top sheet and the bottom sheet can increase the stability of the mattress sponge pad and prevent the mattress sponge pad from shifting or folding during use.

[0008] On the other hand, currently in autumn and winter or in northern regions with a relatively high latitude, when using an inflatable bed, there will be a relatively cold skin touch, reducing the comfort of use. In response to this, the present application adopts a bed body cotton pad with better heat preservation performance to reduce the heat conduction and diffusion of the bed body and improve the comfort of using the inflatable sponge pad.

[0009] Optionally, the inflatable sponge pad further includes a first strap, the first strap is disposed around the side wall of the bed body cotton pad, the top of the first strap is connected to the top sheet, and the bottom of the first strap is connected to the bottom sheet.

[0010] By adopting the above technical solution, the surrounding setting of the first strap on the bed body cotton pad can effectively prevent the deformation or displacement of the bed body cotton pad caused by pressure or movement during use, ensuring the stability and comfort of use of the bed body cotton pad.

[0011] Optionally, the first strap is provided with a plurality of first through holes; alternatively, the first strap is a mesh strap.

[0012] By adopting the above technical solution, while ensuring the strength of the first strap, the overall weight of the first strap can be reduced, and the gas permeability can be improved. On the one hand, it can ensure that the user can still stay dry and comfortable in a hot or sweaty environment. On the other hand, when inflating the air chamber, the gas filled can enter the micropores of the bed body cotton pad through the first through holes or the mesh holes of the mesh strap, ensuring the support stability and comfort of use of the bed body cotton pad.

[0013] Optionally, the height of the first strap is less than the height of the bed body cotton pad.

[0014] By adopting the above technical solution, when the inflatable sponge pad is inflated and used, the first strap will pull the top sheet and the bottom sheet inward, and then the top sheet, the bottom sheet and the first strap will stably cover the bed body cotton pad, making the bed body cotton pad not easily displaced or deformed under pressure during use, so as to ensure the support stability of the bed body cotton pad.

[0015] Optionally, the pumping and gas component is a pumping and gas integrated device and / or an inflation and deflation nozzle.

[0016] By adopting the above technical solution, the inflation and deflation operations of the air chamber are diversified to meet the needs of different use scenarios; for example, setting a pumping and gas integrated device to achieve integrated inflation and deflation; or setting an inflation and deflation nozzle, and other separate external inflation and deflation integrated pumps can be connected to the inflation and deflation nozzle to inflate or deflate the air chamber; or both the pumping and gas integrated device and the inflation and deflation nozzle can be set, and the inflation and deflation operations are diversified.

[0017] Optionally, the inflatable sponge pad further includes a pillow sponge pad, which is arranged in the air chamber and close to one end of the top sheet; the upper surface of the pillow sponge pad is fixedly connected to the lower surface of the top sheet, and the lower surface of the pillow sponge pad is fixedly connected to the upper surface of the bottom sheet.

[0018] By adopting the above technical solution, the integrated design of the pillow sponge pad and the bed body sponge pad can be realized, saving the trouble of carrying an extra pillow, reducing the travel burden, being suitable for outdoor camping or temporary rest and other scenarios, improving the convenience of use of the inflatable sponge pad, and providing a stable supporting force for the inflatable sponge pad; and the pillow sponge pad is also fixedly connected to the top sheet and the bottom sheet, and there is no deformation or displacement caused by pressure or movement during use, and it is comfortable to use.

[0019] Optionally, the inflatable sponge pad further includes a second drawstring, which is arranged around the side wall of the pillow sponge pad, the top of the second drawstring is connected to the top sheet, and the bottom of the second drawstring is connected to the bottom sheet.

[0020] By adopting the above technical solution, the function of the second drawstring is similar to that of the first drawstring. By surrounding the pillow sponge pad, the second drawstring can effectively prevent the deformation or displacement of the pillow sponge pad caused by pressure or movement during use, and ensure the stability and comfort of use of the pillow sponge pad.

[0021] Optionally, the second drawstring is provided with a plurality of second through holes; or, the second drawstring is a mesh drawstring.

[0022] By adopting the above technical solution, while ensuring the strength of the second drawstring, the overall weight of the first drawstring can be reduced, and the gas permeability can be improved. On the one hand, it can ensure that the user can still stay dry and comfortable in a hot or sweaty environment. On the other hand, when the air chamber is inflated, the gas filled can enter the micropores of the pillow sponge pad through the second through holes or the mesh holes of the mesh drawstring, ensuring the support stability and comfort of use of the pillow sponge pad.

[0023] Optionally, the second drawstring is provided with at least one one-way air nozzle, and an air inlet nozzle is arranged at the position of the bottom sheet corresponding to the pillow sponge pad, and the one-way air nozzle is used to limit the gas to flow into the air chamber only unidirectionally from the pillow sponge pad.

[0024] By adopting the above technical solution, an additional inflation method can be provided for the inflatable sponge pad, and the inflation efficiency can be improved. The one-way air nozzle is arranged in the air chamber. The integrated design can reduce the foreign body sensation of the accessories to the human body during use, and the use is comfortable. Specifically, the elastic force of the pillow pad provides compression and rebound effects, and the micropores of the pillow pad can accommodate gas. When the pillow pad is compressed, the gas in the micropores of the pillow pad flows into the air chamber through the one-way air nozzle; when the pillow pad rebounds to restore to its original state, the micropores of the pillow pad are compressed due to volume, and negative pressure is formed in the micropores during the restoration process, and the outside air is sucked into the pillow pad from the air inlet nozzle, and the negative pressure of the micropores of the pillow pad also seals the one-way air nozzle, so that when the pillow pad is restored to its original state to suck air, no air is input into the air chamber, thereby using the compression and rebound force of the pillow pad to inflate the air chamber.

[0025] Optionally, the height of the second drawstring is smaller than the height of the pillow pad.

[0026] By adopting the above technical solution, when the inflatable sponge pad is inflated for use, the second drawstring can pull the top sheet and the bottom sheet inward, so that the top sheet, the bottom sheet and the second drawstring can stably cover the pillow pad, making it difficult for the pillow pad to be compressed and shifted or deformed during use, thereby ensuring the support stability of the pillow pad.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The present application forms an air chamber by enclosing a top sheet, a bottom sheet, and side panels and arranging a bed pad inside the chamber. The bed pad provides stable support and comfort in use, so that the inflatable sponge pad is easy to carry and comfortable to use. During use, the bed is not easily deformed or partially collapsed due to uneven pressure. The warmth retention of the bed pad also makes the inflatable sponge pad suitable for autumn and winter seasons, and is highly practical.

[0029] 2. The pillow and sponge pad provided in this application realizes an integrated design of the bed body, and there is no need to carry an extra pillow, which reduces the burden of travel. It is suitable for outdoor camping or temporary rest and other scenes, and improves the convenience of using the inflatable sponge pad.

[0030] 3. The auxiliary structures such as the first drawstring and the second drawstring provided in the present application can improve the stability of the bed pad and the pillow pad, making them difficult to shift during use, thereby further enhancing the stability and comfort of the inflatable sponge pad during use; at the same time, the diversified inflation and deflation methods can adapt to different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the three-dimensional structure of the inflatable sponge pad of Example 1 of the present application;

[0032] Figure 2 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 1 of the present application (wherein the top sheet is partially dissected and the first strap is partially dissected);

[0033] Figure 3 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 1 of the present application (wherein the top sheet is partially dissected and the first strap is partially dissected);

[0034] Figure 4 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 1 of the present application (wherein the top sheet is partially dissected and the first strap is partially dissected);

[0035] Figure 5 Three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 2 of the present application;

[0036] Figure 6 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 2 of the present application (wherein the top sheet is partially dissected, the first strap is partially dissected, and the second strap is partially dissected);

[0037] Figure 7 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 2 of the present application;

[0038] Figure 8 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 2 of the present application;

[0039] Figure 9 Three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 3 of the present application (wherein the top sheet is partially dissected, the first strap is partially dissected, and the second strap is partially dissected);

[0040] Figure 10 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 3 of the present application;

[0041] Figure 11 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 3 of the present application;

[0042] Figure 12 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 3 of the present application;

[0043] Figure 13 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 3 of the present application;

[0044] Figure 14 Another three-dimensional structural schematic diagram of the inflatable sponge pad according to Embodiment 3 of the present application;

[0045] Description of the reference numerals: 1. Top sheet; 2. Bottom sheet; 21. Air inlet nozzle; 3. Side surround sheet; 4. Mattress sponge pad; 5. Air pumping assembly; 51. Integrated air pumping device; 52. Inflation / deflation air nozzle; 6. First strap; 61. First through hole; 7. Pillow sponge pad; 8. Second strap; 81. Second through hole; 9. Check valve nozzle; 91. Connection base; 911. Through hole; 92. Check valve diaphragm; 921. Connection post; 922. Annular card slot; 93. Connection disc; 931. Connection hole; 932. Ventilation hole; 94. Connection ring; 100. Air chamber. Detailed implementation manners

[0046] The following further describes the present application in conjunction with the Figure 1-14 accompanying drawings.

[0047] An embodiment of the present application discloses an inflatable sponge pad.

[0048] Embodiment 1

[0049] Referring to Figure 1-2 , the inflatable sponge pad includes a top sheet 1, a bottom sheet 2 and a side surround sheet 3. The four peripheral edges of the top sheet 1 are connected to the top of the side surround sheet 3, and the four peripheral edges of the bottom sheet 2 are connected to the bottom of the side surround sheet 3, so that the top sheet 1, the bottom sheet 2 and the side surround sheet 3 enclose a bed frame structure with an air chamber 100. The above connection method preferably uses a heat fusion or bonding process to connect with each other. Further, a mattress sponge pad 4 and a first strap 6 are arranged inside the bed frame structure. The two ends of the first strap 6 are connected end to end and surround the side wall of the mattress sponge pad 4. The upper surface of the mattress sponge pad 4 is fixedly connected to the lower surface of the top sheet 1, and the lower surface of the mattress sponge pad 4 is fixedly connected to the upper surface of the bottom sheet 2. The side of the first strap 6 at the top is fixedly connected to the top sheet 1, and the side of the first strap 6 at the bottom is fixedly connected to the bottom sheet 2. The above fixed connection method preferably uses a heat fusion or bonding process to connect with each other. Specifically, the distance between the lower surface of the top sheet 1 and the upper surface of the bottom sheet 2 is less than the height of the mattress sponge pad 4, and the height of the first strap 6 is also less than the height of the mattress sponge pad 4, so that the top sheet 1, the bottom sheet 2 and the first strap 6 can stably wrap and fix the mattress sponge pad 4. When the air chamber 100 is inflated, it is not easy for the upper surface of the mattress sponge pad 4 and the top sheet 1, and the lower surface of the mattress sponge pad 4 and the bottom sheet 2 to be separated due to the gas pressure, ensuring the use stability of the inflatable sponge pad.

[0050] Preferably, whether the first strap 6 is adhesively and fixedly connected to the side wall of the mattress 4 of the bed body or not is within the protection scope of this application. And whether the first strap 6 is provided with a plurality of first through holes 61 or is a mesh strap with a plurality of mesh holes is within the protection scope of this application. The ratio of the cross-sectional area of the mattress 4 of the bed body to the cross-sectional area of the top sheet 1 is preferably (0.65 - 1):1, so that a larger part of the inflatable sponge pad is the area of the mattress 4 of the bed body for sleeping and lying, and thus the inflatable sponge pad will not collapse locally or become unstable due to pressure. Specifically, the ratio of the cross-sectional area of the mattress 4 of the bed body to the cross-sectional area of the top sheet 1 is preferably 0.65:1, 0.7:1, 0.75:1, 0.8:1, 0.85:1, 0.9:1, 0.95:1 or 1:1.

[0051] See Figure 2 and Figure 3 , the side enclosure piece 3 is provided with a pumping and inflating integrated device 51 or an air charging and discharging nozzle 52, or as Figure 4 shown, the side enclosure piece 3 is simultaneously provided with a pumping and inflating integrated device 51 and an air charging and discharging nozzle 52; the pumping and inflating integrated device 51 is a common air pump structure on the market with integrated inflating and pumping functions, and the air charging and discharging nozzle 52 is a common nozzle structure on the market, which can be connected to an external pumping and inflating device to inflate or deflate the air chamber 100. When the pumping and inflating integrated device 51 and the air charging and discharging nozzle 52 are simultaneously provided, the pumping and inflating integrated device 51 and the air charging and discharging nozzle 52 can be arranged on the same side wall or different side walls of the side enclosure piece 3, which is within the protection scope of this application.

[0052] The implementation principle of Embodiment 1 is as follows: Fix the pumping and inflating integrated device 51 and / or the air charging and discharging nozzle 52 at the corresponding positions on the side enclosure piece 3 according to the required positions, fix the upper surface of the mattress 4 of the bed body to the lower surface of the top sheet 1, and fix the lower surface of the mattress 4 of the bed body to the upper surface of the bottom sheet 2; then arrange the first strap 6 circumferentially around the side wall of the mattress 4 of the bed body, and connect the two ends of the first strap 6 end to end, then connect one side edge of the first strap 6 to the lower surface of the top sheet 1, and connect the other side edge of the first strap 6 to the upper surface of the bottom sheet 2; finally, connect the four peripheral edges of the top sheet 1 to the top of the side enclosure piece 3, and connect the four peripheral edges of the bottom sheet 2 to the bottom of the side enclosure piece 3, then an air chamber 100 is enclosed. Finally, remove the corner materials at each connection, and then the inflatable sponge pad is made.

[0053] When the inflatable sponge pad needs to be used, it is connected to the air charging and discharging nozzle 52 through an external air pumping device, or directly inflated into the air chamber 100 through the inflation function of the integrated air pumping device 51; or the air pumping device is connected to the air charging and discharging nozzle 52 and the integrated air pumping device 51 inflates together to improve the inflation efficiency. The injected air can evenly flow into the air chamber 100 and enter the micropores of the bed body sponge pad 4 through the first through hole 61 or mesh holes of the first strap 6, realizing the inflation process.

[0054] When the inflatable sponge pad is not needed, the air in the air chamber 100 is discharged through the air charging and discharging nozzle 52. When storing, the air in the air chamber 100 and the air in the micropores of the bed body sponge pad 4 can be squeezed. Squeezing while rolling up can achieve exhaust storage. In addition, it can also be connected to the air charging and discharging nozzle 52 through an external air pumping device, or directly through the air extraction function of the integrated air pumping device 51 to quickly extract the gas in the air chamber 100 to the outside, which is more convenient for folding and rolling up the inflatable sponge bed, and the volume of folding and rolling up is smaller.

[0055] Embodiment 2

[0056] See Figure 5-6 , the difference between this embodiment and Embodiment 1 is that: on the basis of the bed body sponge pad 4 and the first strap 6 in Embodiment 1, a pillow sponge pad 7 and a second strap 8 are further provided inside the bed body frame structure. Further, one end of the pillow sponge pad 7 is arranged close to the top sheet 1, and the two ends of the second strap 8 are connected end to end and surround the side wall of the pillow sponge pad 7. The upper surface of the pillow sponge pad 7 is fixedly connected to the lower surface of the top sheet 1, and the lower surface of the pillow sponge pad 7 is fixedly connected to the upper surface of the bottom sheet 2. The side of the second strap 8 at the top is fixedly connected to the top sheet 1, and the side of the second strap 8 at the bottom is fixedly connected to the bottom sheet 2. The above fixed connection methods preferably use heat welding or bonding processes to connect to each other. Specifically, the distance between the lower surface of the top sheet 1 and the upper surface of the bottom sheet 2 is less than the height of the pillow sponge pad 7, and the height of the second strap 8 is also less than the height of the pillow sponge pad 7, so that the top sheet 1, the bottom sheet 2 and the second strap 8 can stably cover and fix the pillow sponge pad 7. When inflating the air chamber 100, it is not easy to peel off between the upper surface of the pillow sponge pad 7 and the top sheet 1, and between the lower surface of the pillow sponge pad 7 and the bottom sheet 2 due to gas pressure, ensuring the use stability of the inflatable sponge pad.

[0057] Preferably, whether the second strap 8 is adhesively and fixedly connected to the side wall of the pillow sponge pad 7 or not is within the protection scope of the present application. And whether the second strap 8 is provided with a plurality of second through holes 81 or is a mesh strap with a plurality of mesh holes is within the protection scope of the present application. More preferably, there is a distance between the pillow sponge pad 7 and the bed body sponge pad 4 and they are not integrally connected and formed; or, the pillow sponge pad 7 and the pillow sponge pad 7 are integrally connected, specifically, they are integrally foamed and formed in a bed body mold with a pillow structure, or they are formed into a structure in which the pillow sponge pad 7 and the bed body sponge pad 4 are integrally connected after sponge foaming and cutting, which are all within the protection scope of the present application.

[0058] See Figure 5 and Figure 7 , the side surround piece 3 of this embodiment is provided with a pumping and air - integrating device 51 or an inflation and deflation nozzle 52, or as Figure 8 shown, the side surround piece 3 is simultaneously provided with a pumping and air - integrating device 51 and an inflation and deflation nozzle 52. When the pumping and air - integrating device 51 and the inflation and deflation nozzle 52 are simultaneously provided, the pumping and air - integrating device 51 and the inflation and deflation nozzle 52 can be arranged on the same side wall or different side walls of the side surround piece 3, which are all within the protection scope of the present application.

[0059] The implementation principle of Embodiment 2 is as follows: Fix the pumping and air - integrating device 51 and / or the inflation and deflation nozzle 52 at the corresponding positions on the side surround piece 3 according to the required positions, fixedly connect the upper surface of the bed body sponge pad 4, the upper surface of the pillow sponge pad 7 with the lower surface of the top sheet 1, and fixedly connect the lower surface of the bed body sponge pad 4, the lower surface of the pillow sponge pad 7 with the upper surface of the bottom sheet 2; then arrange the first strap 6 circumferentially around the side wall of the bed body sponge pad 4, and the two ends of the first strap 6 are connected end to end, and then connect one side of the first strap 6 with the lower surface of the top sheet 1 and the other side of the first strap 6 with the upper surface of the bottom sheet 2; similarly, arrange the second strap 8 circumferentially around the side wall of the pillow sponge pad 7, and the two ends of the second strap 8 are connected end to end, and then connect one side of the second strap 8 with the lower surface of the top sheet 1 and the other side of the second strap 8 with the upper surface of the bottom sheet 2; finally, connect the four - week edges of the top sheet 1 with the top of the side surround piece 3, and connect the four - week edges of the bottom sheet 2 with the bottom of the side surround piece 3, then an air chamber 100 is enclosed. Finally, remove the corner materials at each connection, and then an inflatable sponge pad is made.

[0060] When the inflatable sponge pad needs to be used, it is connected to the air inlet / outlet nozzle 52 through an external air pumping device, or directly inflated into the air chamber 100 through the inflation function of the integrated air pumping device 51; or the air pumping device is connected to the air inlet / outlet nozzle 52 and the integrated air pumping device 51 inflates together to improve the inflation efficiency. The inflated air can evenly flow into the air chamber 100, and enter the micropores of the bed sponge pad 4 through the first through hole 61 or mesh hole of the first strap 6, and enter the micropores of the pillow sponge pad 7 through the second through hole 81 or mesh hole of the second strap 8 to realize the inflation process.

[0061] When the inflatable sponge pad is not needed, the air in the air chamber 100 is discharged through the air inlet / outlet nozzle 52. When storing, the air in the air chamber 100, the air in the micropores of the bed sponge pad 4, and the air in the micropores of the pillow sponge pad 7 can be squeezed. Squeezing while rolling up can realize exhaust storage. In addition, the air in the air chamber 100 can also be quickly pumped out to the outside through an external air pumping device connected to the air inlet / outlet nozzle 52, or directly through the air extraction function of the integrated air pumping device 51, which is more convenient for folding and rolling up the inflatable sponge bed, and the volume of folding and rolling up is smaller.

[0062] Embodiment 3

[0063] See Figure 9 , the difference between this embodiment and Embodiment 2 is that: the second strap 8 does not have the second through hole 81 and is not a mesh strap structure. Specifically, the PVC sheet strap is arranged around the side wall of the pillow sponge pad 7, and the second strap 8 is provided with at least one one-way air nozzle 9, and the one-way air nozzle 9 is a common one-way air nozzle 9 structure on the market; correspondingly, see Figure 10 , the bottom sheet 2 is provided with an air inlet nozzle 21 at the position corresponding to the pillow sponge pad 7.

[0064] See in detail Figure 11-12 , the one-way air nozzle 9 includes a connection seat 91 and a one-way diaphragm 91. The outer wall of the connection seat 91 is provided with a connection ring 94, and the connection ring 94 is arranged along the circumferential direction of the connection seat 91. Preferably, the connection ring 94 is arranged on the side of the second strap 8 close to the pillow sponge pad 7 so that the connection seat 91 can be stably connected to the second strap 8.

[0065] A through hole 911 is formed in the middle of the connecting seat 91. The through hole 911 penetrates through the two surfaces of the connecting seat 91, and a connecting disc 93 is provided on the hole wall of the connecting seat 91 corresponding to the through hole 911. Specifically, the connecting disc 93 is integrally connected to the connecting seat 91. The connecting disc 93 is provided with a connecting hole 931 and a plurality of ventilation holes 932, and a one-way diaphragm 91 covers the plurality of ventilation holes 932. A connecting column 921 is provided on one surface of the one-way diaphragm 91. Specifically, the connecting column 921 is provided on the surface of the one-way diaphragm 91 close to the pillow sponge pad 7. Preferably, the connecting column 921 is integrally formed with the one-way diaphragm 91 and is preferably made of soft rubber material. Further, an annular groove 922 is formed in the middle of the connecting column 921 along its circumferential direction, so that the top of the soft connecting column 921 can pass through the connecting hole 931 by slightly deforming, and then the annular groove 922 is clamped in the connecting hole 931. The end of the connecting column 921 is limited to the surface of the connecting disc 93 close to the pillow sponge pad 7, and the axial length of the annular groove 922 is greater than the thickness of the connecting disc 93, so that the part of the connecting column 921 corresponding to the annular groove 922 can move relatively in the connecting hole 931. When the one-way diaphragm 91 abuts against the connecting disc 93, the one-way diaphragm 91 seals the plurality of ventilation holes 932, so that gas cannot flow from the surface of the connecting disc 93 far from the pillow sponge pad 7 to the surface of the connecting disc 93 close to the pillow sponge pad 7; when the one-way diaphragm 91 moves away from the connecting disc 93, the one-way diaphragm 91 releases the seal of the ventilation holes 932, so that there is a gap between the connecting disc 93 and the one-way diaphragm 91, which is convenient for gas to flow from the surface of the connecting disc 93 close to the pillow sponge pad 7 to the surface of the connecting disc 93 far from the pillow sponge pad 7, and then flows into the air chamber 100.

[0066] See Figure 11 and Figure 13 , the side surround piece 3 of this embodiment is provided with a pumping and air-integrated device 51 or an air charging and discharging nozzle 52, or as Figure 14 shown, the side surround piece 3 is provided with both a pumping and air-integrated device 51 and an air charging and discharging nozzle 52. When both the pumping and air-integrated device 51 and the air charging and discharging nozzle 52 are provided, the pumping and air-integrated device 51 and the air charging and discharging nozzle 52 can be provided on the same side wall or different side walls of the side surround piece 3, which are all within the protection scope of this application.

[0067] The implementation principle of Embodiment 3 is as follows: First, fix the one-way air nozzle 9 on the second pulling belt 8, and then surround the second pulling belt 8 around the side wall of the pillow sponge pad 7. Specifically, the surface of the one-way diaphragm 91 provided with the connecting column 821 faces the pillow sponge pad 7.

[0068] The process of connecting the top piece 1, the bottom piece 2, the side surround piece 3, the bed sponge pad 4, the first pulling belt 6, the pillow sponge pad 7 and the second pulling belt 8 to prepare the inflatable sponge pad is the same as that in Embodiment 2, and will not be repeated here.

[0069] When the inflatable sponge pad needs to be used, it is connected to the air charging and discharging nozzle 52 through an external air pumping device, or directly inflated into the air chamber 100 through the inflation function of the integrated air pumping device 51; or the air pumping device is connected to the air charging and discharging nozzle 52 and the integrated air pumping device 51 inflates together; during the inflation process of the integrated air pumping device 51 and / or the air charging and discharging nozzle 52, self-charging and discharging can be achieved by stepping on the pillow sponge pad 7, further improving the inflation efficiency.

[0070] When stepping on the pillow sponge pad 7, the pillow sponge pad 7 is compressed, the micropore volume of the pillow sponge pad 7 decreases, and when the gas pressure in the micropores presses the one-way diaphragm 91 away from the connection disk 93, the one-way diaphragm 91 releases the seal of the ventilation hole 932, so that there is a gap between the connection disk 93 and the one-way diaphragm 91, facilitating the gas to flow from one surface of the connection disk 93 close to the pillow sponge pad 7 to the other surface of the connection disk 93 away from the pillow sponge pad 7, and then flowing into the air chamber 10. When the compression of the pillow sponge pad 7 is released, the pillow sponge pad 7 returns to its original state due to its own resilience. During the process of returning to its original state, a negative pressure is formed in the micropores, sucking the outside air from the air inlet nozzle 21 into the micropores of the pillow sponge pad 7, and the negative pressure of the micropores of the pillow sponge pad 7 also makes the one-way diaphragm 91 abut against the connection disk 93, sealing the ventilation hole 932, so that when the pillow sponge pad 7 returns to its original state to suck air, no air is input into the air chamber 100. Thus, a process of self-compression and inflation to the air chamber and self-rebound and air suction to the pillow sponge pad 7 is completed by using the compression and resilience of the pillow sponge pad 7.

[0071] The inflated air can uniformly flow into the air chamber 100 and enter the micropores of the bed sponge pad 4 through the first through hole 61 or mesh holes of the first strap 6 to achieve the inflation process.

[0072] When the inflatable sponge pad is not needed, the air in the air chamber 100 is discharged through the air charging and discharging nozzle 52. When storing, the air in the air chamber 100, the air in the micropores of the bed sponge pad 4, and the air in the micropores of the pillow sponge pad 7 can be squeezed. While rolling up and squeezing, the exhaust and storage can be achieved. In addition, the air pumping device outside can also be connected to the air charging and discharging nozzle 52, or directly through the air extraction function of the integrated air pumping device 51, to quickly extract the gas in the air chamber 100 to the outside, which is more convenient for folding and rolling up the sponge pad inflatable bed, and the volume of folding and rolling up is smaller.

[0073] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An inflatable sponge pad, characterized in that: The invention comprises a top sheet (1), a bottom sheet (2), side sheets (3) and a bed pad (4); the edges of the top sheet (1) are connected to the top of the side sheets (3); the edges of the bottom sheet (2) are connected to the bottom of the side sheets (3); the top sheet (1), the bottom sheet (2) and the side sheets (3) are arranged to form an air chamber (100); the bed pad (4) is arranged in the air chamber (100); the upper surface of the bed pad (4) is fixedly connected to the lower surface of the top sheet (1); and the lower surface of the bed pad (4) is fixedly connected to the upper surface of the bottom sheet (2); the side sheets (3) are provided with an air pump assembly (5).

2. The inflatable sponge pad according to claim 1, characterized in that: The inflatable sponge pad also includes a first drawstring (6), which is arranged around the side wall of the bed sponge pad (4), the top of the first drawstring (6) is connected to the top sheet (1), and the bottom of the first drawstring (6) is connected to the bottom sheet (2).

3. The inflatable sponge pad according to claim 2, characterized in that: The first drawstring (6) is provided with a plurality of first through holes (61); or the first drawstring (6) is a mesh drawstring.

4. The inflatable sponge pad according to claim 2, characterized in that: The height of the first pull belt (6) is less than the height of the bed pad (4).

5. The inflatable sponge pad according to claim 1, characterized in that: The pumping air component (5) is an integrated pumping air device (51) and / or an air filling and deflation nozzle (52).

6. An inflatable sponge pad according to any one of claims 1 to 5, characterized in that: The inflatable sponge pad also includes a pillow sponge pad (7), which is arranged in the air chamber (100) and close to one end of the top sheet (1); the upper surface of the pillow sponge pad (7) is fixedly connected to the lower surface of the top sheet (1), and the lower surface of the pillow sponge pad (7) is fixedly connected to the upper surface of the bottom sheet (2).

7. The inflatable sponge pad according to claim 6, characterized in that: The inflatable sponge pad also includes a second drawstring (8), which is arranged around the side wall of the pillow sponge pad (7), the top of the second drawstring (8) is connected to the top sheet (1), and the bottom of the second drawstring (8) is connected to the bottom sheet (2).

8. The inflatable sponge pad according to claim 7, characterized in that: The second drawstring (8) is provided with a plurality of second through holes (81); or the second drawstring (8) is a mesh drawstring.

9. The inflatable sponge pad according to claim 7, characterized in that: The second drawstring (8) is provided with at least one one-way air nozzle (9), and an air inlet nozzle (21) is provided at a position of the bottom film (2) corresponding to the pillow pad (7), and the one-way air nozzle (9) is used to limit the gas to flow from the pillow pad (7) into the air chamber (100) in one direction.

10. The inflatable sponge pad according to claim 7, characterized in that: The height of the second drawstring (8) is smaller than the height of the pillow pad (7).

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