An air bed

Abstract

The present invention discloses an air bed, comprising a mattress body formed by a top surface, a bottom surface and side surrounds, wherein the mattress body is provided with at least two layers of side surrounds, namely an inner side surround and an outer side surround, wherein the inner side surround forms a bed position air chamber of the mattress body, wherein the inner side surround and the outer side surround form a side surround air chamber of the mattress body, wherein a plurality of side surround drawstrings are connected in the side surround air chamber and between the inner side surround and the outer side surround, wherein the side surround drawstrings respectively form a bed edge of the mattress body with the inner side surround, the outer side surround, and the side surround top surface / side surround bottom surface. By providing a side surround air chamber between the inner side surround and the outer side surround of the air bed, the technical solution can make the bed edge of the air bed more stable, the force more evenly applied, the height of the bed body more guaranteed, the side surround air chamber has a better supporting effect, and the user can sleep on it more stably and comfortably.

Description

Technical Field

[0001] The present invention relates to the technical field of inflatable products, and more particularly to an air bed. Background Art

[0002] Modern people are increasingly yearning for a simple and free life, but the problems of furniture being bulky, inconvenient to move and occupying a large area have become important factors restricting people's freedom. For example, a bed is a necessity in people's lives. People need it every day to sleep, but traditional beds are made of wood or metal, which are bulky, heavy and inconvenient to move, bringing great inconvenience to people's lives.

[0003] In view of the above factors, air beds are becoming more and more popular because they are easy to store when not inflated and become beds after being inflated. They have the advantages of being easy to carry, comfortable, simple and convenient, low cost and environmentally friendly.

[0004] However, the existing air beds generally have the following shortcomings, which restrict the development of the air bed industry: First, the existing air beds generally have a single air chamber, which is easy to deform when inflated and is not flat enough, and the hardness of each position of the air bed is consistent, which is not convenient for independent adjustment; it is impossible to meet the requirements of two or more people on the same air bed at the same time; second, the air bed is easy to deform, which will bring a bad experience and comfort to the user and affect the user's sleep; third, the edges of the existing air beds are generally easy to collapse, and the user is easy to slip when sleeping, and the safety and comfort are poor; fourth, the mattresses currently on the market have poor air permeability. People who sleep on them for a long time will feel stuffy and uncomfortable, and long-term heavy moisture will have adverse effects on human health; fifth, the existing air beds are noisy. When the user lies on the bed and turns over, the inflatable mattress will also make a noise, which will affect the user's sleep; fifth, the mattress is easy to expand in an irregular shape after inflation, affecting the use effect.

[0005] On the other hand, in order to keep the air mattress in the desired shape when inflated, it is usually necessary to set a drawstring in its inflation cavity. The drawstrings used in traditional air mattresses are all vertically connected to the top sheet and the bottom sheet of the air mattress. After the air mattress is inflated, the drawstrings will generate vertical pulling force on the top sheet and the bottom sheet. However, the air mattress with such a structure has the following shortcomings: first, the force is concentrated at the joint between the drawstring and the top sheet or the bottom sheet, which can easily cause the connection between the drawstring and the top sheet or the bottom sheet to break or cause the top sheet or the bottom sheet to be torn; second, it is easy to cause the bed body to partially collapse or tilt upward and not be stable enough, affecting the use effect and service life. Summary of the invention

[0006] The present invention aims to overcome at least one defect of the above-mentioned prior art and provide an air bed for solving the technical problems that the existing air beds are easily deformed, not flat and have poor comfort.

[0007] The technical solution adopted by the present invention is an air bed, comprising a mattress body formed by a top surface, a bottom surface and side surrounds, the mattress body is provided with at least two layers of side surrounds, namely an inner side surround and an outer side surround, a bed air chamber of the mattress body is formed inside the inner side surround, a side surround air chamber of the mattress body is formed between the inner side surround and the outer side surround, a plurality of side surround drawstrings are connected inside the side surround air chamber and between the inner side surround and the outer side surround, the side surround drawstrings are respectively connected with the inner side surround, the outer side surround, and the side surround top surface / side surround bottom surface to form a bed edge of the mattress body.

[0008] In this technical solution, by setting at least two layers of side enclosures on the mattress body, the mattress body is made more stable, allowing users to sleep more comfortably on the mattress body and avoid sliding off the bed; it is also convenient to independently adjust the softness and hardness of the surrounding surface of the mattress body, which is more in line with the needs of users. Among them, the side enclosure air chamber of the mattress body is formed between the inner enclosure and the outer enclosure, which is convenient for independent air intake and exhaust to independently control the softness and hardness of the side enclosure air chamber; on the other hand, the side enclosure air chamber is pulled, limited and shaped by the inner enclosure, the outer enclosure, and the top and bottom surfaces of the inner enclosure and the outer side surface, so that the shape of the side enclosure air chamber is fixed, not easy to deform, and has a certain hardness. After the user sleeps on the bed, the side enclosure air chamber forms the edge of the air bed, which can limit the edge of the air bed to prevent the edge of the bed from collapsing, thereby improving the safety and comfort of use.

[0009] Among them, side panel drawstrings are arranged between the inner side panel and the outer side panel, which, on the one hand, can better ensure the hardness of the bed edge; on the other hand, since the connection position between the side panel and the bed drawstring will be restricted during inflation and is not easy to deform, the part of the side panel air chamber that is not connected to the bed drawstring will expand slightly, thereby making the formed bed edge protrude slightly in the surrounding directions to form a protruding limit to prevent the bed edge from collapsing.

[0010] Furthermore, traditional air beds are prone to collapse due to the lack of hard support from inner side panels and side straps, and the height of the bed is generally limited. The present technical solution provides side air chambers, and side straps are provided in the side air chambers, making the bed more stable, more durable, and less prone to deformation. Therefore, the height can be better guaranteed, and people can sit or lie on the bed more steadily and firmly.

[0011] Furthermore, the top surface of the bed air chamber is formed by laminating a flocking layer and a PVC / TPU layer, wherein the flocking layer is arranged on the outside of the PVC / TPU layer; the bottom surface of the bed air chamber is formed by laminating a fabric layer and a PVC / TPU layer, wherein the fabric layer is arranged on the outside of the PVC / TPU layer; the outer side of the bed air chamber is formed by laminating a flocking layer and a PVC / TPU layer, or by laminating a fabric layer and a PVC / TPU layer.

[0012] In this technical solution, by arranging a flocking layer on the top surface of the mattress body, the noise generated by the friction between the PVC material and the human body can be reduced. In addition, flocking on the top surface of the mattress body can make the air mattress more delicate and breathable, giving people a more comfortable feeling when in contact with human skin, and improving the comfort of use.

[0013] The bottom surface of the mattress body is formed by bonding a fabric layer and a PVC / TPU layer. The fabric layer can reduce the noise generated when the mattress is touched, avoid cracking, and increase the service life of the mattress body.

[0014] In addition, after being inflated, the mattress body of the prior art will expand more towards an arc shape, causing the mattress body to bulge out like a bread, making the mattress body not flat and not beautiful, affecting the service life. The provision of the fabric layer limits the expansion of the PVC / TPU layer, making the overall stretching of the mattress body more flat and beautiful, achieving the technical effect that the overall mattress body is not easy to deform, and improving the hardness of the mattress body, making the mattress body more comfortable, and preventing the mattress body from breaking, thereby increasing the service life.

[0015] Among them, preferably, the bottom surface and the outer side of the mattress body are formed by bonding a fabric layer and a PVC / TPU layer. The fabric layer can reduce the noise generated when the mattress is touched, improve its toughness, avoid cracking, and improve the comfort effect and service life of use.

[0016] Furthermore, the inner side wall is made of PVC or TPU material, which can be better welded or bonded to the outer side wall and the top and bottom surfaces of the bed air chamber, thereby achieving better air tightness.

[0017] Furthermore, a plurality of bed drawstrings are provided in the bed air chamber, the bed drawstrings are respectively connected to the top surface and the bottom surface of the bed air chamber, and at least a portion of the bed drawstrings are obliquely arranged in the bed air chamber.

[0018] In this technical solution, the bed straps play a role in restraining the mattress body to form a flat bed shape, but the vertically arranged bed straps still have the problem of bulging of the top surface and the periphery of the mattress body due to the consistent force direction, that is, forming a bread-shaped bulge, resulting in poor aesthetics of the mattress. Since the vertical line of the top of the bed straps and the vertical line of the bottom of the bed straps are not in the same straight line, the force points of the top and bottom surfaces are spaced apart from each other, so the restraint of the top and bottom surfaces of the mattress body will be better, thus playing a role in limiting the bulging of the top and periphery of the mattress body. At the same time, it can also make the force on the top and bottom surfaces of the mattress body more balanced and more stable.

[0019] In the present technical solution, since the structural layers of the top and bottom surfaces of the mattress body are inconsistent, the stress degree, expansion degree, PVC hardness, etc. of the top surface relative to the bottom surface are also different, and the drawstring is arranged at an angle to adjust the stress on the bottom and top surfaces of the mattress body to make the stress more balanced. Since the force position on the upper side of the drawstring and the force position on the lower side are not on the same vertical line, the top and bottom surfaces of the mattress body can be made flatter and more stable, thereby better matching the stress conditions of different surfaces, making the force between the top surface and the ground / side more balanced, and at the same time adjusting the flatness of the top and bottom / side surfaces, so that the mattress body is more balanced in stress, and has better stability and aesthetics.

[0020] Furthermore, at least two groups of side drawstrings are included, namely upper side drawstrings and lower side drawstrings, the upper side drawstrings are connected between the middle and upper parts of the inner side and outer side, and the lower side drawstrings are connected between the middle and lower parts of the inner side and outer side; the side air chamber is divided into three air chambers: upper, middle and lower.

[0021] In the technical solution, the upper side drawstring and the lower side drawstring can make the top and bottom surfaces of the side panels smoother and harder on the one hand, and can also limit the outward deformation of the outer side panel surface on the other hand.

[0022] Furthermore, the upper, middle and lower air chambers of the side surrounding air chamber are independent of each other and control the air intake and exhaust individually; or the upper, middle and lower air chambers of the side surrounding air chamber are interconnected to form one air chamber, and the bed air chamber and the side surrounding air chamber are independent of each other; or the upper, middle and lower air chambers of the side surrounding air chamber are interconnected with the bed air chamber of the mattress body to form one air chamber.

[0023] In the technical solution, the side air chamber is divided into three independent air chambers: upper, middle and lower, so as to control the air intake and exhaust individually. The hardness of each air chamber can be different to better meet the needs of users.

[0024] Among them, the upper air chamber forms the upper bed edge of the mattress body, and the lower air chamber forms the lower bed edge of the mattress body. The upper bed edge and the lower bed edge are stretched and supported by the side drawstrings, which have a better shaping effect and prevent the bed edge from collapsing.

[0025] Alternatively, the upper, middle and lower air chambers of the side enclosure air chamber may be interconnected to form one air chamber, so as to facilitate independent inflation and deflation of the side enclosure air chambers.

[0026] In addition, in order to meet the needs of more users, the upper air chamber and the lower air chamber of the side air chamber can be connected through a hose, or the upper, middle and lower air chambers can be connected to each other.

[0027] Furthermore, two ends of the side wrap drawstring are respectively connected to the inner side wrap and the outer side wrap, and the side wrap drawstring is horizontally or obliquely arranged in the side wrap air chamber.

[0028] Traditional air beds do not have independent side air chambers, nor side drawstrings, or the drawstrings that are provided are directly pulled between the outer periphery and the top / bottom of the bed, which makes the bed edge prone to collapse. The bed drawstrings that are directly pulled between the outer periphery and the top / bottom of the bed are also prone to bulging up or down on the bed edge, resulting in an uneven bed. The side drawstrings of the present technical solution form tension between the inner side and the outer side, and the inclined bed drawstrings can make the bed drawstrings bear more even force, making the bed more stable and the product more durable.

[0029] Furthermore, the four corners of the inner side surround are provided with cutting lines, which extend from the top / bottom of the inner side surround to the connection position between the inner side surround and the side surround drawstring, and the connection position between the inner side surround and the side surround drawstring is staggered with the end point position of the cutting line.

[0030] Furthermore, the cut angle line intersects with the inner side periphery, and the angle formed by the intersection is a diagonal angle, and the diagonal angle is an obtuse angle.

[0031] Setting the cutting line is more in line with the overall stress condition of the mattress, making the transition between the inner side air chamber and the side air chamber more uniform and more connected.

[0032] In the present technical solution, the position where the inner side is welded or bonded to the top surface of the bed air chamber is the first connection position, the position where the inner side is welded or bonded to the upper side band is the second connection position, the position where the inner side is welded or bonded to the lower side band is the third connection position, and the position where the inner side is welded or bonded to the bottom surface of the bed air chamber is the fourth connection position; the position where the outer side is welded or bonded to the top surface of the mattress body is the fifth connection position, the position where the outer side is welded or bonded to the upper side band is the sixth connection position, the position where the outer side is welded or bonded to the lower side band is the seventh connection position, and the position where the outer side is welded or bonded to the bottom surface of the mattress body is the eighth connection position; wherein the position of each connection position is different from each other; the diagonal angles are respectively arranged between the first connection position and the second connection position and between the third connection position and the fourth connection position.

[0033] Furthermore, the hardness value of the bottom surface of the bed air chamber is greater than the hardness value of the top surface of the bed air chamber.

[0034] In the present technical solution, since the structural layers of the top and bottom surfaces are different, and the PVC hardness value of the top surface structural layer is lower than that of the bottom surface structural layer, that is, the elasticity of the top surface is larger, in order to further maintain the flatness and aesthetic performance of the mattress body and avoid the formation of bread-like protrusions on the surface of the mattress body, the PVC hardness of the PVC / TPU layer on the top surface of the mattress body is adjusted to between 35 and 45 PHR, preferably 40 PHR, so as to better match the PVC hardness and elasticity of the bottom surface structural layer.

[0035] The higher the PHR value, the softer the PVC hardness is, the greater the expansion coefficient of the PVC mattress, the greater its elasticity is, and it is easy to deform; conversely, the smaller the expansion coefficient is, the smaller its elasticity is, and it is not easy to deform. In order to achieve a balance between the expansion coefficient and elasticity, traditional PVC mattresses generally require the PVC hardness to be between 50 and 56 PHR.

[0036] The parameter PHR indicates the number of rubber or resin added to every 100 parts (by mass) of PVC material, and indirectly indicates the hardness of PVC by adding rubber or resin. The PHR value can be measured using a Rockwell hardness tester.

[0037] In this technical solution, the flocking layer on the top surface is fiber flock, which will not affect the elasticity of PVC after being bonded with PVC; and the cloth layer on the bottom surface has little or no elasticity, and the cloth and PVC are bonded as a whole. Therefore, the cloth layer plays a role in restraining and limiting the expansion and deformation of the PVC, thereby limiting the expansion and deformation of the mattress body. Among them, the PVC hardness of the bottom bonding layer is adjusted to 55-75PHR, and further adjusted to 60-70PHR, which not only makes the PVC hardness of the bottom bonding layer softer, but also ensures that the bottom surface is not easily deformed, giving people a more comfortable feeling when using it, and better meeting the needs of users.

[0038] Furthermore, the fabric layer is made of nylon or polyester or polyester-cotton blended fabric or cotton cloth or mesh cloth.

[0039] In this technical solution, the PVC / TPU layers of the top, bottom and side surfaces are all arranged on the inside, while the flocking layer / cloth layer is arranged on the outside, so that the noise reduction effect is better. Moreover, the connection between the top surface and the side surface, as well as the connection between the bottom surface and the side surface, are first connected through the connection between the PVC / TPU layer and the PVC / TPU layer, which can better ensure the air tightness and toughness of the connection, making the mattress more stable.

[0040] Among them, the welding method includes high frequency and hot melt bonding, and the bonding includes adhesive bonding or molded bonding. The top surface, bottom surface and side surface of the mattress body are connected by hot melt bonding or adhesive bonding. Among them, the PVC / TPU and the flocking layer, and the PVC / TPU and the fabric layer are formed by adhesive bonding, hot melt bonding or molded bonding.

[0041] Furthermore, the inclined bed drawstring gradually inclines toward the inner side from the top surface of the bed air chamber to the bottom surface of the bed air chamber.

[0042] The bed straps are gradually tilted toward the inner side from the top surface of the bed air chamber to the bottom surface of the bed air chamber. This can make the bottom surface of the bed air chamber bear more balanced force and have a more stable grip, thus preventing the mattress body from tipping over.

[0043] In the present technical solution, since the structural layers of the top and bottom surfaces of the bed air chamber are inconsistent, the stress degree, expansion degree, hardness, etc. of the top surface relative to the bottom surface are also different. The inclined setting of the bed pull strap can better match the stress conditions of different surfaces, making the stress between the top and bottom surfaces more balanced. At the same time, it can also adjust the flatness of the top and bottom surfaces, so that the bed air chamber stress is more balanced, and the stability and aesthetics are better.

[0044] Furthermore, the closer the bed strap is arranged to the center of the bed air chamber, the larger the angle formed by the bed strap and the bottom surface of the bed air chamber; the angle α formed by the bed strap and the bottom surface of the bed air chamber is in the range of 60 degrees < α ≤ 90 degrees.

[0045] With the midline of the long side of the bed air chamber as the center, the bed drawstring forms an angle with the bottom surface of the bed air chamber that gradually decreases from the center of the bed air chamber to the inner periphery. The closer the bed drawstring is to the inner periphery, the smaller its angle is, tending to 60 degrees; the closer the bed drawstring is to the center of the bed air chamber, the larger its angle is, tending to 90 degrees.

[0046] The PVC hardness of the top surface structure layer of the technical solution is small, and the elasticity is large, while the bottom surface or side surface structure layer has no elasticity or small elasticity due to the addition of the patch layer. Therefore, the bed drawstring is set at an angle to better adapt to the different elasticities of the top and bottom surfaces. In order to better adapt to the hardness of the PVC on the top surface of the bed air chamber, the angle α formed by the bed drawstring and the bottom surface of the bed air chamber is in the range of 60 degrees < α ≤ 90 degrees.

[0047] Among them, the slanted bed straps of the technical solution not only make the forces on the top and bottom surfaces of the bed straps staggered, but also make the forces on the bed straps not in a unified direction, and through the tilted bed straps pulling each other, the forces that offset each other are generated to achieve the balance of the force surfaces. The bed straps are gradually tilted from the middle to the inner side of the bed air chamber, so that the top surface of the mattress is flat after inflation.

[0048] Furthermore, taking the midline of the long side of the bed air chamber as the axis of symmetry, when the number of bed straps is an even number, the bed straps are symmetrically and obliquely arranged in the space formed around the axis of symmetry of the bed air chamber; when the number of bed straps is an odd number, one group of bed straps is arranged in the space where the axis of symmetry of the bed air chamber is located, which is perpendicular to the bottom and top surfaces of the bed air chamber, and the bed straps other than the axis of symmetry are symmetrically and obliquely distributed in the space formed around the axis of symmetry of the bed air chamber.

[0049] Furthermore, the bed pull belt gradually inclines outwards from the top surface of the bed air chamber to the bottom surface of the bed air chamber.

[0050] The bed strap is gradually inclined outward from the top surface of the bed air chamber to the bottom surface of the bed air chamber, that is, the force position of the bed strap on the top surface of the bed air chamber is close to the middle of the bed air chamber, and the force position of the bed strap on the bottom surface of the bed air chamber is far away from the middle of the bed air chamber, so that the bed air chamber has a more stable grip on the ground and is not easy to tip over, which has the beneficial effect of being more stable and flatter.

[0051] Furthermore, the bed drawstring is in the form of a sheet, column or ring. The sheet-shaped bed drawstring is arranged along the inner circumference of the bed air chamber, and is designed in a curved or straight line shape at the connection between the top and bottom surfaces of the mattress body; the column-shaped or ring-shaped bed drawstring is evenly arranged in the bed air chamber.

[0052] Among them, the top / bottom of the sheet-like structure of the bed strap is designed in a straight line or a wavy shape, which has a more balanced force and better aesthetics.

[0053] The bed straps with columnar structures are more stable and can also achieve the beneficial effects of even force on the top and bottom surfaces and good aesthetics.

[0054] Among them, the bed pull straps with a columnar structure include cylindrical bed pull straps, 8-shaped bed pull straps or honeycomb bed pull straps, etc.; the bed pull straps of the present technical solution are not limited to the above structural designs, but can also be other design styles, such as bed pull straps with a ring structure.

[0055] Furthermore, a plurality of independent air chambers are arranged in the bed air chamber, and each air chamber controls air inlet and outlet independently.

[0056] In the present technical solution, independent air chambers are provided for the bed air chambers to facilitate users to independently adjust the softness and hardness of each bed. When two or more people sleep on the same mattress, each person may have different requirements for the softness and hardness of the mattress. Therefore, providing independent bed air chambers to adjust the softness and hardness can better meet the needs of users and has higher adaptability.

[0057] Compared with the prior art, the present invention has the following beneficial effects:

[0058] (1) This technical solution can make the edge of the air bed more stable and the force more evenly distributed by arranging side air chambers between the inner and outer sides of the air bed. At the same time, side drawstrings are arranged in the side air chambers to ensure the height of the bed body, and the side air chambers provide better support, so that users can sleep more stably and comfortably.

[0059] (2) The technical solution arranges the bed strap of the bed air chamber at an angle so that the stress points on the top and bottom surfaces of the same bed strap are staggered, making the stress on the top and bottom surfaces more balanced and greatly reducing the bread-like bulge of the mattress cover and the surrounding area, making the mattress body more beautiful; at the same time, the bed strap is arranged to gradually tilt from the top to the bottom toward the inner side, so that the bottom surface of the mattress has a more stable grip on the ground, thereby ensuring the stability and flatness of the mattress body.

[0060] (3) The technical solution arranges the bottom surface of the bed air chamber to be formed by bonding a fabric layer and a PVC / TPU layer, thereby effectively reducing the noise of the mattress body and improving the user's sleep quality and use effect; at the same time, it also reduces the irregular expansion rate of the mattress body, making the mattress body flatter and less prone to deformation, and increases the hardness of the mattress body, thereby improving the comfort of use and service life.

[0061] (4) This technical solution improves the problem of loud noise and airtightness on the top surface of the air bed by adopting a structural layer design in which a flocking layer and a PVC / TPU layer are bonded together on the top surface of the bed air chamber. At the same time, the bottom and side surfaces of the bed air chamber adopt a structural layer design in which a cloth layer and a PVC / TPU layer are bonded together, which can effectively improve the problem of local bread-like bulges and expansion deformation of traditional air beds after inflation, making the mattress body smoother. At the same time, the cloth layer can also effectively reduce the risk of the bed air chamber being scratched, abraded or punctured, thereby increasing the service life of the mattress body. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 This is a three-dimensional diagram of the bed structure of Example 1 of the present invention.

[0063] Figure 2 It is a cross-sectional view of the present invention.

[0064] Figure 3 for Figure 2 Schematic diagram of the inner corner cutting method at the middle position 500.

[0065] Figure 4 It is a structural diagram of the bed structure of the present invention.

[0066] Figure 5 Schematic diagram of the top surface and outer periphery welding.

[0067] Figure 6 Schematic diagram of the bottom surface and the outer periphery welding.

[0068] Figure 7 Schematic diagram of the welding of the top surface of the bed air chamber and the bed strap.

[0069] Figure 8 Schematic diagram of the welding of the bottom surface of the bed air chamber and the bed strap.

[0070] Fig. 9 This is a structural diagram of a sheet pull strap.

[0071] Fig.10 This is a three-dimensional diagram of the bed structure of Example 2 of the present invention.

[0072] Fig.11 This is a three-dimensional diagram of the bed structure of Example 3 of the present invention.

[0073] Fig.12 This is a three-dimensional diagram of the bed structure of Example 4 of the present invention.

[0074] Fig.13 This is a three-dimensional diagram of the bed structure of Example 5 of the present invention.

[0075] Fig.14 It is a schematic diagram of the common air intake after the side air chamber and the bed air chamber are connected.

[0076] Fig.15 Schematic diagram of independent air intake for side air chamber and bed air chamber.

[0077] Fig.16 Schematic diagram of the independent air intake after the bed air chamber is divided into two independent air chambers.

[0078] Fig.17 This is a schematic structural diagram of the side wall air chamber of Example 13, in which no cutting line is set on the inner side wall.

[0079] Fig.18 This is a diagram of the upper air chamber connection structure of the side air chamber of the present invention in Example 14.

[0080] Fig.19 This is a diagram showing the effect of the air bed of the present invention in Example 14 when the inflation pressure reaches 0.5PSI.

[0081] Fig. 20 This is a structural diagram of the bed edge air chamber connection of the air bed of Comparative Example 1 in Example 14.

[0082] Fig.21 This is a diagram showing the effect of the air bed of Comparative Example 1 in Example 14 when the inflation pressure reaches 0.5PSI. DETAILED DESCRIPTION

[0083] The drawings of the present invention are only for illustrative purposes and should not be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted.

[0084] Example 1

[0085] like Figure 1 , Figure 2 and Figure 4 As shown, an air bed comprises a mattress body formed by a top surface 110, a bottom surface 120 and side surrounds, the mattress body is provided with two layers of side surrounds, namely an inner side surround 140 and an outer side surround 130, a bed air chamber 100 of the mattress body is formed in the inner side surround 140, a side surround air chamber 200 of the mattress body is formed between the inner side surround 140 and the outer side surround 130, side surround drawstrings are connected in the side surround air chamber 200 and between the inner side surround 140 and the outer side surround 130, and the side surround drawstrings are respectively connected to the inner side surround 140, the outer side surround 130, and the side surround top surface / side surround bottom surface to form a bed edge of the mattress body.

[0086] Among them, the side enclosure air chamber 200 includes two groups of side enclosure drawstrings, namely an upper side enclosure drawstring 210 and a lower side enclosure drawstring 220. The upper side enclosure drawstring 210 is connected between the middle and upper parts of the inner side enclosure 140 and the outer side enclosure 130, and the lower side enclosure drawstring 220 is connected between the middle and lower parts of the inner side enclosure 140 and the outer side enclosure 130. The side enclosure air chamber 200 is divided into three air chambers: upper, middle and lower.

[0087] The upper, middle and lower air chambers of the side air chamber 200 are independent of each other and control air intake and exhaust individually.

[0088] The two ends of the side wrap drawstring are respectively connected to the inner side wrap 140 and the outer side wrap 130 , and the side wrap drawstring is obliquely arranged in the side wrap air chamber 200 .

[0089] like Figure 2 and Figure 3 As shown, the four corners of the inner side panel 140 are provided with cutting lines 141, and the cutting lines 141 extend from the top / bottom of the inner side panel 140 to the connection position between the inner side panel and the side panel drawstring, and the connection position between the inner side panel 140 and the side panel drawstring is staggered with the end point position of the cutting line 141.

[0090] The cutting line intersects with the inner side periphery, and the angle formed by the intersection is a diagonal angle β, and the diagonal angle β is an obtuse angle.

[0091] like Figure 2 As shown, the position where the inner side surround 140 is welded or bonded to the top surface of the bed air chamber 100 is the first connection position 201, the position where the inner side surround 140 is welded or bonded to the upper side surround drawstring 210 is the second connection position 202, the position where the inner side surround 140 is welded or bonded to the lower side surround drawstring 220 is the third connection position 203, and the position where the inner side surround 140 is welded or bonded to the bottom surface of the bed air chamber 100 is the fourth connection position 204; the position where the outer side surround 130 is welded or bonded to the top surface of the mattress body is the fifth connection position 205, the position where the outer side surround 130 is welded or bonded to the upper side surround drawstring 210 is the sixth connection position 206, the position where the outer side surround 130 is welded or bonded to the lower side surround drawstring 220 is the seventh connection position 207, and the position where the outer side surround 130 is welded or bonded to the bottom surface of the mattress body is the eighth connection position 208; wherein, the position of each connection position is different from each other; the diagonal angles are respectively set between the first connection position 201 and the second connection position 202, and between the third connection position 203 and the fourth connection position 204.

[0092] Among them, the top surface 110 of the bed air chamber 100 is formed by laminating a flocking layer and a PVC / TPU layer, wherein the flocking layer is arranged on the outside of the PVC / TPU layer; the bottom surface 120 of the bed air chamber 100 is formed by laminating a cloth layer and a PVC / TPU layer, wherein the cloth layer is arranged on the outside of the PVC / TPU layer; the outer side wall 130 of the bed air chamber 100 is formed by laminating a cloth layer and a PVC / TPU layer; the material of the inner side wall 140 is PVC or TPU material.

[0093] like Figure 5 As shown, the top surface 110 of the bed air chamber is formed by bonding a flocking layer B and a PVC layer A, the flocking layer B of the top surface 110 is arranged on the outside of the PVC layer A, and the top surface of the bed air chamber extends to the top of the outer sidewall and is welded and bonded to the outer sidewall, the outer sidewall is formed by bonding a fabric layer C and a PVC layer A, and the fabric layer C of the outer sidewall 130 is arranged on the outside of the PVC layer A.

[0094] like Figure 6 As shown, the bottom surface 120 of the bed air chamber is formed by bonding a fabric layer C and a PVC layer A. The fabric layer C of the bottom surface 120 is arranged on the outside of the PVC layer A, and the bottom surface of the bed air chamber extends to the bottom of the outer sidewall and is welded and bonded to the outer sidewall.

[0095] The PVC layer A of the top surface 110, the bottom surface 120 and the outer periphery 130 are all arranged on the inside, while the flocking layer B / cloth layer C is arranged on the outside, so that the noise reduction effect is better. Moreover, the connection between the top surface 110 and the outer periphery 130, and the connection between the bottom surface 120 and the outer periphery 130 are firstly welded by connecting the PVC layer A with the PVC layer A, which can better ensure the air tightness and toughness of the connection, making the mattress more stable.

[0096] The hardness value of the bottom surface 120 of the bed air chamber 100 is greater than the hardness value of the top surface 110 of the bed air chamber 100 .

[0097] In the present technical solution, since the structural layers of the top surface 110 and the bottom surface 120 are different, and the PVC hardness value of the structural layer of the top surface 110 is lower than that of the PVC hardness value of the structural layer of the bottom surface 120, that is, the elasticity of the top surface 110 is larger, in order to further maintain the flatness and aesthetic performance of the mattress body and avoid the formation of bread-like protrusions on the surface of the mattress body, the PVC hardness of the PVC / TPU layer of the top surface 110 of the mattress body is adjusted to 40PHR, so as to better match the PVC hardness and elasticity of the structural layer of the bottom surface 120.

[0098] The higher the PHR value, the softer the PVC hardness is, the greater the expansion coefficient of the PVC mattress, the greater its elasticity is, and it is easy to deform; conversely, the smaller the expansion coefficient is, the smaller its elasticity is, and it is not easy to deform. In order to achieve a balance between the expansion coefficient and elasticity, traditional PVC mattresses generally require the PVC hardness to be between 50 and 56 PHR.

[0099] The parameter PHR indicates the number of rubber or resin added to every 100 parts (by mass) of PVC material, and indirectly indicates the hardness of PVC by adding rubber or resin. The PHR value can be measured using a Rockwell hardness tester.

[0100] The flocking layer of the top surface 110 is fiber flock, which will not affect the elasticity of PVC after being bonded with PVC; and the cloth layer of the bottom surface 120 has little or no elasticity, and the cloth and PVC are bonded as a whole, so the cloth layer plays a role in restraining and limiting the expansion and deformation of the PVC, thereby limiting the expansion and deformation of the mattress body. The PVC hardness of the bonding layer of the bottom surface 120 is adjusted to 60-70 PHR, which not only makes the PVC hardness of the bonding layer of the bottom surface 120 softer, but also ensures that the bottom surface 120 is not easily deformed, giving people a more comfortable feeling when using it, and better meeting the needs of users.

[0101] Wherein, the fabric layer is made of nylon.

[0102] like Figure 2As shown, a plurality of bed straps 300 are provided in the bed air chamber 100 , and the bed straps 300 are respectively connected to the top surface 110 and the bottom surface 120 of the bed air chamber 100 , and the bed straps 300 are arranged obliquely in the bed air chamber 100 .

[0103] like Figure 7 and Figure 8 As shown, the bed drawstring 300 is welded and bonded to the top surface 110 and the bottom surface 120 of the bed air chamber 100 respectively.

[0104] The inclined bed strap 300 is gradually inclined from the top surface 110 of the bed air chamber 100 to the bottom surface 120 of the bed air chamber 100 toward the inner side 140 .

[0105] Among them, since the structural layers of the top surface 110 and the bottom surface 120 of the bed air chamber 100 are inconsistent, the stress degree, expansion degree, softness and hardness of the top surface 110 relative to the bottom surface 120 are also different, and the bed pull belt 300 is set at an angle, which can better match the stress conditions of different surfaces, so that the stress between the top surface 110 and the bottom surface 120 is more balanced, and at the same time, the flatness of the top surface 110 and the bottom surface 120 can be adjusted, so that the bed air chamber 100 is more balanced in stress, and has better stability and aesthetics.

[0106] like Figure 2 As shown, the closer the bed strap 300 is arranged to the center of the bed air chamber 100, the larger the angle formed by the bed strap 300 and the bottom surface 120 of the bed air chamber 100; the angle α formed by the bed strap 300 and the bottom surface 120 of the bed air chamber 100 is in the range of 60 degrees < α ≤ 90 degrees.

[0107] With the midline of the long side of the bed air chamber 100 as the center, the bed drawstring 300 forms a gradually decreasing inclination angle with the bottom surface 120 of the bed air chamber 100 from the center of the bed air chamber 100 to the inner side periphery 140. The closer the bed drawstring 300 is to the inner side periphery 140, the smaller its angle is, tending to 60 degrees; the closer the bed drawstring 300 is to the center of the bed air chamber 100, the larger its angle is, tending to 90 degrees.

[0108] like Fig. 9 As shown, the bed pull belt 300 is in a sheet-like structure, and the sheet-like bed pull belt 300 is arranged along the inner circumference of the bed air chamber 100, and is designed in a curved shape at the connection between the top surface 110 and the bottom surface 120 of the bed air chamber.

[0109] The bed air chamber 100 is provided with two independent air chambers, which are arranged in parallel and control the air intake and exhaust separately.

[0110] Example 2

[0111] like Fig.10 As shown, the difference between the second embodiment and the first embodiment is that the bed strap 300 is designed to be linear at the connection between the top surface 110 and the bottom surface 120 of the bed air chamber.

[0112] Example 3

[0113] like Fig.11 As shown, the difference between the present embodiment 3 and the embodiment 1 is that the bed pull belt 300 is a columnar structure and is evenly arranged in the bed air chamber 100 .

[0114] Example 4

[0115] like Fig.12 As shown, the difference between this embodiment 4 and embodiment 1 is that the bed strap 300 is designed in an 8-shape, and the 8-shaped strap 300 is obliquely arranged in the bed air chamber 100 and respectively connects the top surface 110 and the bottom surface 120 of the bed air chamber 100.

[0116] Example 5

[0117] like Fig.13 As shown, the difference between this embodiment 5 and embodiment 3 is that the bed air chamber 100 is divided into two independent air chambers, and the two independent air chambers are arranged side by side in the space surrounded by the inner side wall 140.

[0118] Example 6

[0119] like Fig.14 As shown, the difference between this embodiment 6 and embodiment 1 is that the bed air chamber 100 and the side surrounding air chamber 200 are interconnected to form a mattress air chamber. The air bed of this embodiment can ensure the support effect of the side surrounding air chamber, reduce the use of air pumps, and is easy to use.

[0120] Example 7

[0121] like Fig.15 As shown, the difference between this embodiment 7 and embodiment 1 is that the bed air chamber 100 and the side air chamber 200 are independent of each other, and the upper, middle and lower air chambers in the side air chamber are interconnected. The air bed of this embodiment can not only ensure the supporting effect of the side air chamber, but also independently adjust the softness and hardness of the side air chamber, so that the height of the bed body is more guaranteed.

[0122] Example 8

[0123] like Fig.16As shown, the difference between the present embodiment 8 and the present embodiment 7 is that the bed air chamber 100 is divided into two independent air chambers, so that the left and right parts of the bed air chamber 100 can be independently inflated and deflated. The air bed of the present embodiment can not only ensure the supporting effect of the side surrounding air chambers, but also independently adjust the softness and hardness of the side surrounding air chambers 200, and also independently adjust the softness and hardness of the left and right parts of the bed air chamber 100, so as to meet the softness and hardness requirements of different groups of people.

[0124] Example 9

[0125] The difference between this embodiment and embodiment 1 is that the fabric layer C is made of polyester.

[0126] Example 10

[0127] The difference between this embodiment and embodiment 1 is that the fabric layer C is made of polyester-cotton blended fabric.

[0128] Embodiment 11

[0129] The difference between this embodiment and embodiment 1 is that the cloth layer C is made of cotton cloth.

[0130] Example 12

[0131] The difference between this embodiment and embodiment 1 is that the fabric layer C is made of mesh fabric.

[0132] Example 13

[0133] like Fig.17 As shown, the difference between this embodiment and embodiment 1 is that no cutting line is set on the inner side of this embodiment.

[0134] Embodiment 14

[0135] Performance Testing

[0136] 1. Material preparation

[0137] ① The products of this test experiment embodiment are air beds obtained in embodiments 1 to 13, and the number of air mattresses in each embodiment is 10;

[0138] Among them, Fig.18 As shown, the upper air chamber of the side surrounding air chamber of the air bed of the present embodiments 1 to 13 is formed by connecting the first connecting position 201, the second connecting position 202, the fifth connecting position 205 and the sixth connecting position 206;

[0139] ② Prepare an inflatable mattress of comparative example, numbered as comparative example 1, and the number of inflatable mattresses of comparative example is 10; wherein comparative example 1 is a traditional PVC mattress, and the inflatable mattress of comparative example is obtained by welding PVC; wherein the thickness of the mattress material of comparative example 1 is consistent with the thickness of the mattress material of the embodiment;

[0140] Among them, Fig. 20 As shown, the air bed of the comparative example 1 has an air chamber along the bed connected by the intersection 30 of the top surface and the drawstring, the intersection 31 of the side surround and the drawstring, and the intersection 32 of the side surround and the top surface.

[0141] 2. Explosion-proof test

[0142] The mattresses of the embodiment and the comparative example are inflated, and the inflation pressure of each mattress is measured by a professional air pressure detection instrument; the air pressure value of each mattress when inflated and burst is recorded, and the limit inflation value of each mattress is obtained by conversion; wherein, the air pressure of each air chamber of the inflatable bed is consistent; wherein, the higher the limit inflation value, the better its explosion-proof performance.

[0143] 3. Expansion volume test

[0144] The mattresses of the embodiment and the comparative example were inflated respectively, and when the air pressure in the inflated mattress reached 1 PSI, the expansion volume change of the mattress was recorded. The smaller the expansion volume, the better the effect and the flatter the mattress.

[0145] Four: rolling test

[0146] The mattresses of the embodiment and the comparative example were respectively subjected to a rolling test using a 120 kg roller. When the mattresses were cracked or leaked, the number of times the roller was rolled was recorded.

[0147] 5. Impact number test

[0148] Use objects weighing 60 kg and let them fall freely from a height of 30 cm above the top surface of the mattress. When the mattress breaks or leaks, the number of times the object falls freely is recorded.

[0149] VI: The test results are shown in Table 1 below:

[0150] Table 1:

[0151]

[0152]

[0153] Among them, Fig.19 As shown, in the explosion-proof test stage, when the air pressure in the side surrounding air chamber of the air bed of the present embodiments 1 to 13 reaches 0.5 PSI, the expansion amplitude is small, it is not easy to deform, it is tough and stiff, and has a high ability to withstand air pressure. The tester feels very comfortable lying on it.

[0154] like Fig.21As shown, during the explosion-proof test, when the air pressure in the air chamber at the edge of the bed of the air bed of Comparative Example 1 reached 0.5 PSI, its expansion amplitude was large and it was easy to bulge up and down, indicating that its ability to withstand air pressure was low. The tester felt less comfortable lying on it.

[0155] In addition, the test results show that the performance of the air beds of Examples 1 to 13 is significantly better than that of the air bed of Comparative Example 1, and the performance of the air beds of Examples 1 to 12 is better than that of the air bed of Example 13.

[0156] Summary: After testing, the air beds obtained in Examples 1 to 13 have good explosion-proof effect, long service life, are not easy to deform, are tough, have high safety performance, and are more comfortable.

[0157] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An air bed, characterized in that: The mattress body comprises a top surface, a bottom surface and side surrounds, wherein the mattress body is provided with at least two layers of side surrounds, namely an inner side surround and an outer side surround, wherein the inner side surround forms a bed air chamber of the mattress body, and the inner side surround and the outer side surround form a side surround air chamber of the mattress body, wherein a plurality of side surround drawstrings are connected in the side surround air chamber and between the inner side surround and the outer side surround, and the side surround drawstrings respectively form a bed edge of the mattress body with the inner side surround, the outer side surround, and the side surround top surface / side surround bottom surface; the PVC hardness of the bottom surface bonding layer is adjusted to 55-75HR; The top surface of the bed air chamber is formed by laminating a flocking layer and a PVC / TPU layer, wherein the flocking layer is arranged on the outside of the PVC / TPU layer; the bottom surface of the bed air chamber is formed by laminating a fabric layer and a PVC / TPU layer, wherein the fabric layer is arranged on the outside of the PVC / TPU layer; the side periphery of the bed air chamber is formed by laminating a flocking layer and a PVC / TPU layer, or by laminating a fabric layer and a PVC / TPU layer; the PVC hardness of the PVC / TPU layer on the top surface of the mattress body is adjusted to between 35 and 45 PHR; The two ends of the side wrap drawstring are respectively connected to the inner side wrap and the outer side wrap, and the side wrap drawstring is arranged in parallel or obliquely in the side wrap air chamber; the four corners of the inner side wrap are provided with cutting lines, and the cutting lines extend from the top / bottom of the inner side wrap to the connection position between the inner side wrap and the side wrap drawstring, and the connection position between the inner side wrap and the side wrap drawstring is staggered with the end point position of the cutting line.

2. An air bed according to claim 1, characterized in that: A plurality of bed drawstrings are arranged in the bed air chamber, the bed drawstrings are respectively connected to the top surface and the bottom surface of the bed air chamber, and at least a part of the bed drawstrings is arranged obliquely in the bed air chamber.

3. An air bed according to claim 1, characterized in that: It includes at least two groups of side drawstrings, namely upper side drawstrings and lower side drawstrings. The upper side drawstrings are connected between the middle and upper parts of the inner side and outer side, and the lower side drawstrings are connected between the middle and lower parts of the inner side and outer side. The side air chamber is divided into three air chambers: upper, middle and lower.

4. An air bed according to claim 3, characterized in that: The upper, middle and lower air chambers of the side surrounding air chamber are independent of each other and control the air intake and exhaust individually; or the upper, middle and lower air chambers of the side surrounding air chamber are interconnected to form one air chamber, and the bed air chamber and the side surrounding air chamber are independent of each other; or the upper, middle and lower air chambers of the side surrounding air chamber are interconnected with the bed air chamber of the mattress body to form one air chamber.

5. An air bed according to claim 1, characterized in that: The cut angle line intersects with the inner side periphery, and the angle formed by the intersection is a diagonal angle, and the diagonal angle is an obtuse angle.

6. An air bed according to claim 1, characterized in that: The hardness value of the bottom surface of the bed air chamber is greater than the hardness value of the top surface of the bed air chamber.

7. An air bed according to claim 2, characterized in that: The inclined bed drawstring gradually inclines toward the inner side from the top surface of the bed air chamber to the bottom surface of the bed air chamber.

8. An air bed according to claim 2, characterized in that: The bed drawstring is in sheet, column or ring shape. The sheet-shaped bed drawstring is arranged along the inner circumference of the bed air chamber and is designed in a curved or straight line shape at the connection between the top and bottom surfaces of the mattress body. The column or ring-shaped bed drawstring is evenly arranged in the bed air chamber.

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