Multi-layer and multi-cavity backrest and inflatable bed

Abstract

The utility model relates to the field of inflatable products, and provides a multi-layer and multi-chamber backrest and an inflatable bed, the backrest comprises a backrest main body, a backrest layer is arranged on one side of the backrest main body close to a user, the backrest layer comprises a first leaning layer and a second leaning layer arranged in the first leaning layer, the first leaning layer and the second leaning layer are connected to form a plurality of front cavities. The inflatable bed has the advantages that (1) the backrest layer is provided with a plurality of front cavities in direct contact with a human body, so that the comfort of the backrest is improved, the sleep quality and the use effect of a user are improved, and the experience feeling of the user on the inflatable bed is optimized; and (2) the inflatable bed integrally provides support and resilience force for a user through the inner cavity of the first backrest supporting piece, the inner cavity of the second backrest supporting piece, the front cavity and the reinforcing cavity, so that the comfort of the backrest is further improved.

Description

Technical Field

[0001] The utility model relates to the field of inflatable products, and more specifically, to a multi-layer and multi-chamber backrest and an inflatable bed. Background Art

[0002] The presence of a backrest can help people relax their bodies and support and relax their entire bodies. If people do not have the support of a backrest when sitting for a long time, they will easily feel tired and uncomfortable. Whether it is a chair, mattress or other furniture, a backrest can make people feel more comfortable and avoid health problems caused by incorrect sitting posture.

[0003] With the accelerated pace of life, people pay more and more attention to the comfort and portability of daily necessities. Inflatable furniture such as air beds and inflatable chairs are gradually favored by people because of their easy carrying and storage. They are widely used in outdoor leisure and entertainment, medical care, home life and other fields. In these inflatable furniture products, backrests are usually added to improve the comfort of users. However, the existing inflatable backrests are usually a layer of fabric laid flat to form the backrest body. The elasticity of the backrest is completely dependent on the internal cavity of the backrest body, which has limited comfort and poor user experience. Utility Model Content

[0004] The utility model aims to overcome at least one defect (deficiency) of the above-mentioned prior art and provide a multi-layered and multi-chambered backrest and an inflatable bed for improving the comfort of the backrest.

[0005] The technical solution adopted by the utility model is to provide a backrest, including a backrest body, wherein a backrest layer is provided on the side of the backrest body close to the user, and the backrest layer includes a first leaning layer and a second leaning layer arranged in the first leaning layer, and the first leaning layer and the second leaning layer are connected to form a plurality of front chambers.

[0006] In this technical solution, the side of the backrest body close to the user is the side on which the user leans; the first leaning layer is a layer in direct contact with the user; the connecting line of the first leaning layer and the second leaning layer forms the edge of the front cavity, and the front cavity forms a plurality of elastic convex parts on the opening layer, making it more comfortable for the user to lean on it. Two adjacent front cavities can be independent of each other or connected to each other.

[0007] The inflatable bed of this solution provides a plurality of chambers in direct contact with the human body through the backrest layer, thereby improving the comfort of the backrest, improving the user's sleep quality and use effect, and optimizing the user's experience of the inflatable bed.

[0008] Furthermore, the backrest layer also includes a third leaning layer, and the third leaning layer and the second leaning layer are connected to form a reinforced chamber. Furthermore, the area of ​​the reinforced chamber is larger than the total area of ​​the front chamber, and the reinforced chamber is provided with a backrest ventilation hole away from the front chamber, and the backrest ventilation hole connects the outside of the backrest and the reinforced chamber.

[0009] In the present technical solution, the reinforced chamber is a cavity arranged inside the front chamber. When the front chamber is pressed inward, the reinforced chamber provides it with rebound force, further improving the overall comfort of the inflatable bed. In addition, since the front chamber is an extra-outer chamber, it is easy to be damaged. When it is damaged and leaks, the reinforced chamber can continue to be used by the user. Conversely, when the reinforced chamber is damaged, the front chamber can continue to be used by the user. This avoids the problem of the inflatable bed being unusable due to damage to the front chamber or the reinforced chamber, and is convenient for users to use, especially in outdoor situations.

[0010] Furthermore, the front chamber includes at least a first front chamber and a second front chamber, and the first front chamber and the second front chamber are connected.

[0011] In the present technical solution, the first front chamber and the second front chamber can be chambers of different sizes and shapes, which are distributed on the backrest layer to form various shapes and patterns. Preferably, the first front chamber and the second front chamber are staggered to form a uniform pattern to make the overall shape symmetrical and beautiful.

[0012] Furthermore, the backrest body includes a backrest support component, and the backrest support component includes a back layer, a first surrounding belt and a backrest layer, and the first surrounding belt connects the back layer and the backrest layer.

[0013] In the present technical solution, the back layer is on the bottom layer of the backrest away from the user, the first belt is the side backrest belt connecting the back layer and the backrest layer, and the backrest layer is on the side close to the user. In the present solution, the internal cavity of the backrest body, the front cavity and the reinforcement cavity jointly provide support and resilience for the user, thereby improving comfort.

[0014] Furthermore, the backrest body includes a first backrest support member and a second backrest support member connected to each other, the first backrest support member includes a back layer, a first surrounding belt, a front layer and a backrest bottom film, the first surrounding belt connects the back layer and the backrest layer to form a cavity opening downward, and the backrest bottom film closes the opening; the second backrest support member is formed by connecting and enclosing the backrest layer, the second surrounding belt and the front layer in sequence.

[0015] In the present technical solution, the edge of the backrest bottom film connects the backrest layer, the front layer and the first belt to close the opening, the first belt is a side belt connecting the back layer and the front layer, and the second belt is a side belt connecting the backrest layer and the front layer; in the present solution, the internal cavity of the first backrest support, the internal cavity of the second backrest support, the front cavity and the reinforcement cavity jointly provide support and resilience for the user, further improving the comfort of the backrest.

[0016] Furthermore, a first drawstring is provided in the first backrest support, and the first drawstring connects the front layer and the back layer; a second drawstring is provided in the second backrest support, and the second drawstring connects the backrest layer and the front layer.

[0017] In the present technical solution, the drawstring is provided to limit the expansion of the corresponding backrest support, avoiding the transitional protrusion of the two support members after inflation, making the surface of the backrest smoother, making it more convenient for users to lean on, and also making the overall appearance more beautiful.

[0018] Another object of the utility model is to provide an inflatable bed, comprising a mattress body formed by a top layer, a bottom layer and side layers, wherein the head of the inflatable bed is connected to any of the above-mentioned backrests.

[0019] In the technical solution, the top layer is the layer that directly contacts the user, the bottom layer is the layer that contacts the ground of the inflatable bed, and the side layer is the structure that connects the top layer and the bottom layer. The backrest can be connected to the inside of the inflatable bed, or can be independent of each other. There are many ways to connect the backrest, as long as the backrest can be fixed to the head of the bed. The inflatable bed connected with the backrest greatly improves the comfort.

[0020] Furthermore, the top layer includes a first surface layer and a second surface layer arranged under the first surface layer, the first surface layer and / or the second surface layer are connected to the side layer; the first surface layer and the second surface layer are connected to form a plurality of side chambers.

[0021] In the technical solution, the first surface layer and / or the second surface layer are welded to the side layer, and the first surface layer and the second surface layer are also welded, for example, the first surface layer is connected to the side layer, and the second surface layer is connected to the first surface layer; or the second surface layer is connected to the side layer, and the first surface layer is connected to the second surface layer. The connecting line between the first surface layer and the second surface layer forms the edge of the face-side chamber, and the face-side chamber forms a plurality of elastic protrusions on the top layer, making the human body more comfortable when lying flat on the inflatable bed. The first surface layer and the second surface layer are connected at multiple points to form a plurality of face-side chambers, and two adjacent face-side chambers can be independent of each other or interconnected.

[0022] Furthermore, the top layer also includes a third surface layer; the third surface layer and the second surface layer are connected to form a dorsal cavity, the area of ​​the dorsal cavity is larger than the total area of ​​all the surface cavities, and the dorsal cavity is provided with a natural vent away from the surface cavities, and the natural vent is connected to the outside of the mattress body.

[0023] The inflatable bed may or may not be provided with natural vents. In the present technical solution, it is a solution containing natural vents. Specifically, the dorsal chamber is connected to the outside through the natural vents. When a human body lies on the top layer, the dorsal chamber is compressed to a certain extent, and a small part of the gas in the dorsal chamber will flow out through the natural vents to avoid the internal gas being too full and causing the top layer to be too stiff. Therefore, the setting of the natural vents increases the softness of the top layer; when the human body does not use the inflatable bed, the dorsal chamber bulges again, and the external gas is sucked into the dorsal chamber through the natural vents to form a natural adjustment. Such a setting further improves the comfort of the inflatable bed. In addition, the amount of gas in the dorsal chamber is automatically adjusted through the natural vents, so that when the inflatable bed is not in use, it is convenient to fold and store it, reducing the storage volume.

[0024] Furthermore, the first surface layer is connected to the side layer, the edge of the second surface layer is connected to the edge of the third surface layer, the connection between the second surface layer and the third surface layer is extended to form an extension piece, and the extension piece, the first surface layer and the side layer are combined to form an upper edge air chamber; the bottom layer is provided with a lower layer four-piece, and the lower layer four-piece, the bottom layer and the side layer are combined to form a lower edge air chamber.

[0025] In the present technical solution, the extension sheet can be formed by extending the second surface layer, or by extending the third surface layer, or by extending the second surface layer and the third surface layer together after being welded. The extension sheet is used to directly replace the upper four-layer sheet, making the internal structure of the inflatable bed more compact.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] (1) The backrest layer of the inflatable bed of the utility model is provided with a plurality of front chambers that are in direct contact with the human body, thereby improving the comfort of the backrest, improving the user's sleep quality and use effect, and optimizing the user's experience of the inflatable bed.

[0028] (2) The inflatable bed of the utility model as a whole provides support and resilience for the user through the internal cavity of the first backrest support member, the internal cavity of the second backrest support member, the front cavity and the reinforcement cavity, thereby further improving the comfort of the backrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the cross-sectional structure of the backrest of Example 1.

[0030] Figure 2 This is a schematic diagram of the front structure of the backrest of Example 1.

[0031] Figure 3 This is a schematic diagram of the cross-sectional structure of the inflatable bed of Example 2.

[0032] Figure 4 for Figure 3 A magnified view of the structure at center.

[0033] Figure 5 This is a schematic diagram of the top surface structure of the inflatable bed of Example 2.

[0034] Figure 6 Schematic diagram of the cross-sectional structure of the backrest of Example 3.

[0035] Figure 7 for Figure 6 A magnified view of the structure at point B.

[0036] Figure 8 This is a schematic diagram of the front structure of the backrest of Example 3.

[0037] Fig. 9 This is a schematic diagram of the cross-sectional structure of the inflatable bed of Example 4.

[0038] Fig.10 for Fig. 9 Enlarged view of the structure at C in the middle.

[0039] Fig.11 This is a schematic diagram of the top surface structure of the inflatable bed of Example 4 without a backrest.

[0040] Fig.12 This is a schematic diagram of the front structure of the backrest of the inflatable bed of Example 4.

[0041] Fig.13 This is a schematic structural diagram of the bottom surface of the inflatable bed of Example 4.

[0042] Fig.14 This is a schematic structural diagram of the cross section of the inflatable bed of Example 5.

[0043] Fig.15 This is a schematic structural diagram of the cross section of the inflatable bed of Example 6.

[0044] Fig.16 This is a schematic structural diagram of the cross section of the inflatable bed of Example 7.

[0045] Fig.17 for Fig.16 Enlarged view of the structure at D in FIG.

[0046] Fig.18 This is a schematic diagram of the top surface structure of the inflatable bed in Example 7 without a backrest.

[0047] Fig.19 This is a schematic structural diagram of the cross section of the inflatable bed of Example 8.

[0048] Fig. 20 This is a schematic structural diagram of the cross section of the inflatable bed of Example 9.

[0049] Fig.21 for Fig. 20 Enlarged view of the structure at E in the middle.

[0050] Reference numerals: back support 100, back layer 110, first leaning layer 111, second leaning layer 112, third leaning layer 113, front chamber 114, reinforcement chamber 115, first front chamber 116, second front chamber 117, back layer 120. First belt 130, first drawstring 140, top layer 200, first surface layer 210, first side chamber 211, second side chamber 212, second surface layer 220, back chamber 221, third surface layer 230, natural vent 24 0, upper four-piece piece 250, top layer patch 260, bottom layer 300, bed body drawstring 310, side layer 400, extension piece 500, upper edge air chamber 510, air chamber drawstring 511, lower edge air chamber 520, lower four-piece piece 521, air pump 600, first channel 610, second channel 620, third channel 630, first backrest support 700, backrest bottom film 710, front layer 720, welding piece 730, second backrest support 800, second belt 810, second drawstring 820. DETAILED DESCRIPTION

[0051] The drawings of the present invention are only used for illustrative purposes and cannot 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; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0052] Example 1

[0053] Combination Figure 1 and Figure 2 This embodiment provides a multi-layered and multi-chambered backrest, including a backrest body, wherein a backrest layer 110 is provided on the side of the backrest body close to the user, wherein the backrest layer 110 includes a first leaning layer 111 and a second leaning layer 112 provided inside the first leaning layer 111, wherein the first leaning layer 111 and the second leaning layer 112 are welded and connected to form a plurality of front chambers 114. The backrest layer 110 also includes a third leaning layer 113, wherein the third leaning layer 113 and the second leaning layer 112 are welded and connected to form a reinforced chamber 115. The reinforced chamber 115 may be provided with a backrest vent hole or not, and preferably, the reinforced chamber 115 is not provided with a backrest vent hole.

[0054] The front chamber 114 at least includes a first front chamber 116 and a second front chamber 117, and the first front chamber 116 and the second front chamber 117 are connected. Specifically, the backrest body includes a backrest support 100, and the backrest support 100 includes a back layer 120, a first surrounding belt 130 and a backrest layer 110, and the first surrounding belt 130 connects the back layer 120 and the backrest layer 110. A first drawstring 140 is provided inside the backrest support 100, and the first drawstring 140 is welded to connect the backrest layer 110 and the back layer 120, and the first drawstring 140 can be columnar or sheet-shaped.

[0055] The first supporting layer 111 is flocking / PVC or breathable and comfortable cloth / PVC; the second supporting layer 112, the third supporting layer 113 and the drawstring are PVC, and the material of the surrounding belt is flocking / PVC, PVC, TPU or one of them and cloth; the material of the back layer 120 is PVC, TPU or one of them and cloth.

[0056] Example 2

[0057] Combination Figures 1 to 5 This embodiment provides an inflatable bed, including a mattress body formed by a top layer 200, a bottom layer 300 and a side layer 400, and the head of the inflatable bed is connected to the backrest provided in Example 1. The head of the top layer 200 is provided with a backrest hole corresponding to the backrest, and a top layer patch 260 is welded to the backrest hole of the top layer 200, the top layer patch 260 closes the backrest hole, and the lower edge of the backrest is welded to the top layer patch 260. That is, the top layer patch 260, the backrest layer 110, the back layer 120 and the first surrounding belt 130 enclose to form a backrest.

[0058] The top layer 200 includes a first surface layer 210 and a second surface layer 220 disposed under the first surface layer 210, wherein the first surface layer 210 and / or the second surface layer 220 are connected to the side layer 400; the first surface layer 210 and the second surface layer 220 are connected to form a plurality of surface side chambers. Further, the top layer 200 also includes a third surface layer 230; the third surface layer 230 and the second surface layer 220 are connected to form a back side chamber 221. The surface side chambers at least include a first surface side chamber 211 and a second surface side chamber 212, wherein the first surface side chamber 211 and the second surface side chamber 212 are connected. The first surface side chamber 211 may or may not be interconnected, and the first surface side chamber 211 and the second surface side chamber 212 may be chambers of different sizes or shapes, and may be evenly distributed in a variety of shapes and patterns on the top layer, preferably, the first surface side chamber 211 and the second surface side chamber 212 are evenly distributed alternately to make the overall appearance more beautiful.

[0059] The back side chamber 221 may be provided with natural ventilation holes 240 or not. In this embodiment, the back side chamber 221 is provided with natural ventilation holes 240 as an example. Specifically, the area of ​​the back side chamber 221 is larger than the total area of ​​all the face side chambers. The back side chamber 221 is provided with natural ventilation holes 240 away from the face side chambers, and the natural ventilation holes 240 are connected to the outside of the mattress body. The first surface layer 210 is connected to the side layer 400, the edge of the second surface layer 220 is connected to the edge of the third surface layer 230, and the connection between the second surface layer 220 and the third surface layer 230 extends to form an extension piece 500. The extension piece 500 can be formed by extending the second surface layer 220, or by extending the third surface layer 230, or by extending the second surface layer 220 and the third surface layer 230 after being connected. In this embodiment, the extension piece 500 is formed by extending the second surface layer 220, and the extension piece 500, the first surface layer 210 and the side layer 400 are combined to form an upper edge air chamber 510; the bottom layer 300 is provided with a lower layer four-piece piece 521, and the lower layer four-piece piece 521, the bottom layer 300 and the side layer 400 are combined to form a lower edge air chamber 520.

[0060] The first surface layer is flocking / PVC or breathable and comfortable cloth / PVC, the second surface layer, the third surface layer and the drawstring are PVC, the side layer is made of flocking / PVC, PVC, TPU or one of them and cloth; the bottom layer is made of PVC, TPU or one of them and cloth.

[0061] The inflatable bed is provided with a bed strap 310 and an air chamber strap 511 inside. The bed strap 310 welds and connects the top layer 200 and the bottom layer 300. The air chamber strap 511 welds and connects the extension sheet 500 and the bottom layer 300. The bed strap 310 and the air chamber strap 511 are columnar or sheet-shaped.

[0062] The top layer patch 260, the extension piece 500 and the lower layer four-piece piece 521 are all provided with through holes, the interior of the backrest support 100 is communicated with the upper edge air chamber 510, the upper edge air chamber 510 is communicated with the interior of the inflatable bed, and the lower edge air chamber 520 is communicated with the interior of the inflatable bed. The side layer 400 at the end of the inflatable bed is connected to an air pump 600. The air pump 600 is used to inflate the interior of the mattress body.

[0063] Example 3

[0064] Combination Figures 6 to 8This embodiment provides a multi-layered and multi-chambered backrest, including a backrest body, wherein a backrest layer 110 is provided on the side of the backrest body close to the user, wherein the backrest layer 110 includes a first leaning layer 111 and a second leaning layer 112 provided in the first leaning layer 111, wherein the first leaning layer 111 and the second leaning layer 112 are connected to form a plurality of frontal chambers 114. The backrest layer 110 also includes a third leaning layer 113, wherein the third leaning layer 113 and the second leaning layer 112 are connected to form a reinforcement chamber 115. The frontal chamber 114 includes at least a first frontal chamber 116 and a second frontal chamber 117, wherein the first frontal chamber 116 and the second frontal chamber 117 are connected. The backrest body includes a first backrest support 700 and a second backrest support 800 connected to each other. The first backrest support 700 includes a back layer 120, a first circumferential belt 130, a front layer 720 and a backrest bottom film 710. The first circumferential belt 130 connects the back layer 120 and the backrest layer 110 to form a cavity with an opening downward, and the backrest bottom film 710 closes the opening; the second backrest support 800 is formed by connecting and enclosing the back layer 110, the second circumferential belt 810 and the front layer 720 in sequence. The first backrest support 700 is provided with a first drawstring 140, which connects the front layer 720 and the back layer 120; the second backrest support 800 is provided with a second drawstring 820, which connects the back layer 110 and the front layer 720. Both the first drawstring 140 and the second drawstring 820 can be sheet-shaped or column-shaped. In this embodiment, the second drawstring 820 is a column-shaped drawstring.

[0065] The first supporting layer 111 is flocking / PVC or breathable and comfortable cloth / PVC; the second supporting layer 112, the third supporting layer 113 and the drawstring are PVC, and the material of the surrounding belt is flocking / PVC, PVC, TPU or one of them and cloth; the material of the back layer 120 is PVC, TPU or one of them and cloth.

[0066] A plurality of air holes are provided at the corresponding positions of the front layer 720 and the second back support member 800 , and the first back support member 700 and the second back support member 800 are connected through the air holes.

[0067] Example 4

[0068] Combination Figures 6 to 13 This embodiment provides an inflatable bed, including a mattress body formed by a top layer 200, a bottom layer 300 and a side layer 400, and the head of the inflatable bed is connected to the backrest provided in Example 3. The side layer 400 and the front layer 720 on one side of the backrest are at least partially welded to form a welding sheet 730, and a circular hole is provided on the welding sheet 730, and the mattress body and the first backrest support member 700 are connected through the circular hole.

[0069] The top layer 200 includes a first surface layer 210 and a second surface layer 220 disposed under the first surface layer 210, wherein the first surface layer 210 and / or the second surface layer 220 are connected to the side layer 400; the first surface layer 210 and the second surface layer 220 are connected to form a plurality of surface side chambers. The top layer 200 also includes a third surface layer 230; the third surface layer 230 and the second surface layer 220 are connected to form a back side chamber 221. The surface side chambers at least include a first surface side chamber 211 and a second surface side chamber 212, wherein the first surface side chamber 211 and the second surface side chamber 212 are connected. The first surface side chamber 211 may or may not be interconnected, and the first surface side chamber 211 and the second surface side chamber 212 may be chambers of different sizes or shapes, and may be evenly distributed in a variety of shapes and patterns on the top layer, preferably, the first surface side chamber 211 and the second surface side chamber 212 are evenly distributed alternately to make the overall appearance more beautiful.

[0070] The inflatable bed may be provided with natural vents or not. In the present embodiment, taking the one provided with natural vents as an example, specifically, the area of ​​the back chamber 221 is larger than the total area of ​​all the face chambers, and the back chamber 221 is provided with natural vents 240 away from the face chambers, and the natural vents 240 are connected to the outside of the mattress body.

[0071] The interior of the inflatable bed is provided with an upper quadrilateral sheet 250 and a lower quadrilateral sheet 521. The upper quadrilateral sheet 250, the side layer 400 and the top layer 200 enclose an upper edge air chamber 510, and the lower quadrilateral sheet 521, the side layer 400 and the bottom layer 300 enclose a lower edge air chamber 520. Specifically, the upper side of the upper quadrilateral sheet 250 is connected to the third surface layer 230, and the edge of the back chamber 221 extends to the interior of the upper edge air chamber 510. The upper quadrilateral sheet 250 and the lower quadrilateral sheet 521 are both provided with through holes. The upper edge air chamber 510 is connected to the interior of the inflatable bed through the through holes of the upper quadrilateral sheet 250, and the lower edge air chamber 520 is connected to the interior of the inflatable bed through the through holes of the lower quadrilateral sheet 521. An air pump 600 is connected to a side of the inflatable bed away from the bed head, and the air pump 600 is used to inflate the interior of the inflatable bed.

[0072] A bed body drawstring 310 is provided inside the inflatable bed, and the bed body drawstring 310 connects the top layer 200 and the bottom layer 300 . The bed body drawstring 310 may be in the form of a sheet or a column.

[0073] The first surface layer is flocking / PVC or breathable and comfortable cloth / PVC, the second surface layer, the third surface layer and the drawstring are PVC, the side layer is made of flocking / PVC, PVC, TPU or one of them and cloth; the bottom layer is made of PVC, TPU or one of them and cloth.

[0074] Example 5

[0075] like Fig.14 As shown, this embodiment provides an inflatable bed, and its structure is similar to that of embodiment 4, except that: the air pump 600 is arranged on the side layer 400 near the head of the inflatable bed, and the air pump 600 is a double-chamber air pump, and the air pump 600 is connected with a first channel 610 and a second channel 620, the first channel 610 is connected to the upper edge air chamber 510 through the through hole of the upper four-ply sheet 250, and the second channel 620 is connected to the lower edge air chamber 520 through the through hole of the lower four-ply sheet 521. At the same time, the air pump 600 exhausts air to inflate the interior of the inflatable bed.

[0076] Example 6

[0077] like Fig.15 As shown, this embodiment provides an inflatable bed, whose structure is similar to that of Embodiment 5, except that: the air pump 600 is also connected to a third channel 630, and the third channel 630 passes through the circular hole on the welding plate 730 to communicate with the interior of the first backrest support 700.

[0078] Example 7

[0079] Combination Figures 6 to 8 ,as well as Figures 16 to 18 This embodiment provides an inflatable bed, including a mattress body formed by a top layer 200, a bottom layer 300 and a side layer 400, and the head of the inflatable bed is connected to the backrest provided in Example 3. The side layer 400 and the front layer 720 on one side of the backrest are at least partially welded to form a welding sheet 730, and a circular hole is provided on the welding sheet 730, and the mattress body and the first backrest support member 700 are connected through the circular hole. The backrest bottom sheet 710 is welded to the bottom layer 300.

[0080] The top layer 200 includes a first surface layer 210 and a second surface layer 220 disposed under the first surface layer 210. The first surface layer 210 and / or the second surface layer 220 are connected to the side layer 400. In this embodiment, the first surface layer 210 is connected to the side layer 400; the first surface layer 210 and the second surface layer 220 are connected to form a plurality of surface side chambers. The top layer 200 also includes a third surface layer 230; the third surface layer 230 and the second surface layer 220 are connected to form a back side chamber 221. The surface side chambers include at least a first surface side chamber 211 and a second surface side chamber 212, and the first surface side chamber 211 and the second surface side chamber 212 are connected. The first side chambers 211 may be interconnected or not, and the first side chamber 211 and the second side chamber 212 may be chambers of different sizes or shapes and may be evenly distributed in various shapes and patterns on the top layer. Preferably, the first side chamber 211 and the second side chamber 212 are evenly distributed alternately to make the overall appearance more beautiful.

[0081] The inflatable bed may be provided with natural vents or not. In the present embodiment, taking the embodiment with natural vents as an example, specifically, the area of ​​the back chamber 221 is larger than the total area of ​​all the face chambers, and the back chamber 221 is provided with natural vents 240 away from the face chambers, and the natural vents 240 are connected to the outside of the mattress body.

[0082] The interior of the inflatable bed is provided with an upper quadrilateral sheet 250 and a lower quadrilateral sheet 521. The upper quadrilateral sheet 250, the side layer 400 and the first surface layer 210 enclose an upper edge air chamber 510, and the lower quadrilateral sheet 521, the side layer 400 and the bottom layer 300 enclose a lower edge air chamber 520. The upper quadrilateral sheet 250 and the lower quadrilateral sheet 521 are both provided with through holes. The upper edge air chamber 510 is connected to the interior of the inflatable bed through the through holes of the upper quadrilateral sheet 250, and the lower edge air chamber 520 is connected to the interior of the inflatable bed through the through holes of the lower quadrilateral sheet 521. An air pump 600 is connected to the side of the inflatable bed away from the head of the bed, and the air pump 600 is used to inflate the interior of the inflatable bed. The edge of the dorsal chamber 221 is bent along the upper edge air chamber 510.

[0083] The first surface layer is flocking / PVC or breathable and comfortable cloth / PVC, the second surface layer, the third surface layer and the drawstring are PVC, the side layer is made of flocking / PVC, PVC, TPU or one of them and cloth; the bottom layer is made of PVC, TPU or one of them and cloth.

[0084] Example 8

[0085] like Fig.19 As shown, this embodiment provides an inflatable bed, and its structure is similar to that of Embodiment 7, except that: the air pump 600 is arranged on the side layer 400 near the head of the inflatable bed, and the air pump 600 is connected with a first channel 610, and the first channel 610 passes through the circular hole on the welding sheet 730 to communicate with the interior of the first backrest support 700. At the same time, the air pump 600 inflates the interior of the inflatable bed.

[0086] Example 9

[0087] Combination Figures 6 to 8 ,as well as Fig. 20 and Fig.21This embodiment provides an inflatable bed, including a mattress body formed by a top layer 200, a bottom layer 300 and a side layer 400, and the head of the inflatable bed is connected to the backrest provided in Example 3. The side layer 400 and the front layer 720 on one side of the backrest are at least partially welded to form a welding sheet 730, and a circular hole is provided on the welding sheet 730, and the mattress body and the first backrest support member 700 are connected through the circular hole. The backrest bottom sheet 710 is welded to the bottom layer 300.

[0088] The top layer 200 includes a first surface layer 210 and a second surface layer 220 disposed under the first surface layer 210. The first surface layer 210 and / or the second surface layer 220 are connected to the side layer 400. The first surface layer 210 and the second surface layer 220 are connected to form a plurality of face-side chambers. The top layer 200 also includes a third surface layer 230. The third surface layer 230 and the second surface layer 220 are connected to form a back-side chamber 221. The area of ​​the back-side chamber 221 is larger than the total area of ​​all face-side chambers. The back-side chamber 221 is provided with a natural vent 240 away from the face-side chamber. The natural vent 240 is connected to the outside of the mattress body.

[0089] In this embodiment, the first surface layer 210 is connected to the side layer 400, the edge of the second surface layer 220 is connected to the edge of the third surface layer 230, and the connection between the second surface layer 220 and the third surface layer 230 extends to form an extension piece 500. The extension piece 500 can be formed by extending the second surface layer 220, or by extending the third surface layer 230, or by extending the second surface layer 220 and the third surface layer 230 after being connected. In this embodiment, the extension piece 500 is formed by extending the second surface layer 220, and the extension piece 500, the first surface layer 210 and the side layer 400 are combined to form an upper edge air chamber 510; the bottom layer 300 is provided with a lower layer four-piece piece 521, and the lower layer four-piece piece 521, the bottom layer 300 and the side layer 400 are combined to form a lower edge air chamber 520.

[0090] The extension piece 500 and the lower four-layer sheet 521 are both provided with through holes, and the upper edge air chamber 510 is connected to the interior of the inflatable bed through the through holes of the extension piece 500, and the lower edge air chamber 520 is connected to the interior of the inflatable bed through the through holes of the lower four-layer sheet 521. An air pump 600 is connected to the side of the inflatable bed away from the bed head, and the air pump 600 is used to inflate the interior of the inflatable bed.

[0091] The first surface layer is flocking / PVC or breathable and comfortable cloth / PVC, the second surface layer, the third surface layer and the drawstring are PVC, the side layer is made of flocking / PVC, PVC, TPU or one of them and cloth; the bottom layer is made of PVC, TPU or one of them and cloth.

[0092] Obviously, the above embodiments of the utility model are only examples for clearly explaining the technical solution of the utility model, and are not intended to limit the specific implementation methods of the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A multi-layered and multi-chambered backrest, comprising a backrest body, characterized in that: A backrest layer is arranged on the side of the backrest body close to the user. The backrest layer comprises a first leaning layer and a second leaning layer arranged inside the first leaning layer. The first leaning layer and the second leaning layer are connected to form a plurality of front chambers.

2. The backrest according to claim 1, characterized in that: The backrest layer also includes a third leaning layer, and the third leaning layer and the second leaning layer are connected to form a reinforced chamber. Furthermore, the area of ​​the reinforced chamber is larger than the total area of ​​the front chamber. The reinforced chamber is provided with a backrest ventilation hole away from the front chamber, and the backrest ventilation hole connects the outside of the backrest and the reinforced chamber.

3. The backrest according to claim 2, characterized in that: The front chamber includes at least a first front chamber and a second front chamber, and the first front chamber and the second front chamber are connected.

4. The backrest according to claim 3, characterized in that: The backrest body comprises a backrest support component, and the backrest support component comprises a back layer, a first surrounding belt and a backrest layer, wherein the first surrounding belt connects the back layer and the backrest layer.

5. The backrest according to claim 3, characterized in that: The backrest body includes a first backrest support member and a second backrest support member connected to each other, the first backrest support member includes a back layer, a first surrounding belt, a front layer and a backrest bottom film, the first surrounding belt connects the back layer and the backrest layer to form a cavity opening downward, and the backrest bottom film closes the opening; the second backrest support member is formed by connecting and enclosing the back layer, the second surrounding belt and the front layer in sequence.

6. The backrest according to claim 5, characterized in that A first drawstring is provided in the first backrest support, and the first drawstring connects the front layer and the back layer; a second drawstring is provided in the second backrest support, and the second drawstring connects the backrest layer and the front layer.

7. An inflatable bed, comprising a mattress body formed by a top layer, a bottom layer and a side layer, characterized in that: The head of the inflatable bed is connected to a backrest as described in any one of claims 1 to 6.

8. The inflatable bed according to claim 7, characterized in that: The top layer includes a first surface layer and a second surface layer arranged under the first surface layer, the first surface layer and / or the second surface layer are connected to the side layer; the first surface layer and the second surface layer are connected to form a plurality of side chambers.

9. The inflatable bed according to claim 8, characterized in that: The top layer also includes a third surface layer; the third surface layer and the second surface layer are connected to form a back chamber, the area of ​​the back chamber is larger than the total area of ​​all the surface chambers, and the back chamber is provided with natural ventilation holes away from the surface chambers, and the natural ventilation holes are connected to the outside of the mattress body.

10. The inflatable bed according to claim 9, characterized in that: The first surface layer is connected to the side layer, the edge of the second surface layer is connected to the edge of the third surface layer, the connection between the second surface layer and the third surface layer extends to form an extension piece, and the extension piece, the first surface layer and the side layer are combined to form an upper edge air chamber; the bottom layer is provided with a lower layer four-piece, and the lower layer four-piece, the bottom layer and the side layer are combined to form a lower edge air chamber.

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