Air spring, air cushion and mattress

Abstract

The utility model relates to an air spring, an air cushion and a mattress. A massage air bag in an existing air spring is prone to deviation. The massage spring comprises a spring body, the spring body comprises a massage air bag and a supporting air bag which are arranged up and down and isolated from each other, the massage air bag and the supporting air bag are fixedly connected through a substrate, and the axes of the massage air bag and the supporting air bag coincide with each other, so that the massage air bag and the supporting air bag deform independently and are in vertical linkage. The spring body is of an integrated structure and comprises a massage air bag and a supporting air bag which are vertically arranged and isolated from each other, and the bottom of the massage air bag and the top of the supporting air bag are fixedly connected through a substrate, so that it is guaranteed that the massage air bag and the supporting air bag are coaxially arranged and prevented from horizontally deviating; the massage air bags are effectively supported by the supporting air bags to form upwards-applied massage stimulation through air inflation, the massage experience is improved, it is guaranteed that the positions of the massage air bags are fixed, and targeted massage is conducted on the specific body section of a user.

Description

Technical Field

[0001] The utility model relates to the field of bedding, in particular to an air spring, an air cushion and a mattress. Background Art

[0002] The existing mattress includes a cushion body and a control box. The cushion body is provided with a support layer with a bladder assembly. The control box adjusts the air pressure by inflating and deflating the bladder assembly so that the bladder assembly can achieve the corresponding function. The bladder assembly includes a support airbag for adjusting the hardness of the cushion body and a massage airbag for applying massage stimulation to the user. The massage airbag is arranged above the support airbag to ensure that the massage airbag and the support airbag achieve their respective functions and do not affect each other. The existing massage airbag is arranged above the support airbag in an overlapping manner. The massage airbag and the support airbag are not fixed to each other. The massage airbag is easily offset due to force compression, which not only causes the massage stimulation generated by the massage airbag to fail to act accurately on the preset area of ​​the user, but also easily fails to effectively apply massage stimulation to the user because the support airbag cannot effectively support the bottom of the massage airbag, affecting the massage comfort. Utility Model Content

[0003] In order to address the deficiencies of the prior art, the utility model provides an air spring, an air cushion and a mattress, which are equipped with massage airbags and support airbags of an integrated structure and which can be independently inflated and deflated, thereby ensuring that the relative positions of the two are fixed to prevent relative displacement, and also ensuring that the massage airbags and support airbags can be independently controlled to realize their respective functions, thereby improving the user experience.

[0004] The utility model is realized in the following manner: an air spring, including a spring body, the spring body including a massage airbag and a support airbag which are separated from each other in the upper and lower parts, the massage airbag and the support airbag are fixedly connected by a substrate, and the axes are arranged to overlap with each other, so that the massage airbag and the support airbag can be deformed independently and linked vertically. The spring body is an integrated structure, including a massage airbag and a support airbag which are separated from each other in the upper and lower parts, and the bottom of the massage airbag and the top of the support airbag are fixedly connected by a substrate, which ensures that the massage airbag and the support airbag are coaxially arranged to prevent horizontal deviation between the two, ensures that the massage airbag forms an upward massage stimulation through inflation under the effective support of the support airbag, improves the massage experience, and ensures that the position of the massage airbag is fixed, so as to perform targeted massage on the specific body segment of the user.

[0005] Preferably, the top wall of the massage airbag is provided with folded rings arranged in sequence along its radial direction and formed by repeated vertical folding, and the massage airbag is switched between an inflated state in which adjacent folded rings are vertically extended and a contracted state in which adjacent folded rings are vertically stacked by inflation and deflation. The massage airbag is provided with folded rings for guiding deformation, so that the massage airbag can switch between an inflated state and a contracted state, and can not only generate massage stimulation by switching to an inflated state, but also reduce thickness by switching to a contracted state, thereby eliminating the foreign body sensation and improving lying comfort.

[0006] Preferably, the massage airbag comprises a massage bag, the bottom surface of which is exposed downward and is sealed by the top surface of the substrate, so that the massage bag and the substrate are enclosed to form the massage airbag. The massage bag is formed by integral processing and is bonded to the substrate to form the massage airbag, which is convenient for processing and ensures the sealing of the massage airbag, and is convenient for inflation and deflation operations and massage stimulation.

[0007] Preferably, a convex point that bulges upward is provided in the middle of the top wall of the massage airbag, and the massage airbag switches to the inflated state and applies massage stimulation upward through the convex point. The convex point is located in the middle of the top wall of the massage airbag, and can be lifted upward when the massage airbag switches to the inflated state. The raised convex point is used to press the user and form massage stimulation, which not only ensures that the harder convex point can effectively transmit the massage stimulation, but also can increase the intensity of the massage stimulation by reducing the contact area between the user and the massage airbag, thereby improving the user experience. The convex point can be either a hard structure or an independent and sealed capsule, which plays a role in effectively transmitting the massage stimulation.

[0008] Preferably, the support airbag comprises at least two vertically stacked and mutually connected unit bags, and the support airbag can realize telescopic switching between an extended state and a contracted state by inflating and deflating air. The unit bags are mutually connected and vertically stacked, which not only ensures that the unit bags can realize vertical telescopic expansion and contraction by synchronously inflating and deflating air, ensures that the support airbag can accurately switch between an extended state and a contracted state, but also ensures that the support airbag can always be coaxially arranged with the massage airbag, ensures that the bottom of the massage airbag is stably supported by the support airbag, and further ensures that the top of the massage airbag can exert massage stimulation upward.

[0009] Preferably, the vertical projections of the unit capsules overlap each other, and the middle parts of the facing surfaces of adjacent unit capsules are connected. The support airbags are columnar, which not only facilitates the horizontal limitation of adjacent support airbags through the side wall abutment, thereby playing a role in horizontal limitation of the massage airbags, but also ensures that the support airbags can be extended and retracted along their vertical axes by setting the same diameter, thereby playing a role in guiding the vertical extension and retraction of the support airbags.

[0010] Preferably, the support airbag comprises a support bag, the top surface of which is exposed upward and is sealed by the bottom surface of the substrate, so that the support bag and the substrate are enclosed to form the support airbag. The support bag is formed by integral processing and is bonded to the substrate to form the support airbag, which is convenient for processing, ensures the sealing of the support airbag, and facilitates independent control of the air pressure inside the support airbag.

[0011] An air cushion, the air springs share the substrate, and the air springs are arranged in a matrix on the substrate, so that adjacent air springs are positioned by being fixed to the substrate. The substrate is enlarged in size and multiple air springs arranged in a matrix are provided, which is convenient for adhering to the massage bag and the support bag to form the air spring, and also ensures that the relative positions of adjacent air springs are fixed to prevent the air springs from being horizontally offset.

[0012] Preferably, the top surface of the substrate is provided with an upper air tube connected in series with the massage airbags, and the air cushion includes an upper tube sheet spanning between the corresponding massage airbags, and the two sides of the upper tube sheet are respectively adhered to the top surface of the substrate and enclosed to form the upper air tube. The upper tube sheet spans between the bottom edges of adjacent massage bags, and the side edges of the upper tube sheet and the bottom edges of the massage bags are both adhered to the top surface of the substrate, so that the upper air tube formed by the enclosed can span between adjacent massage airbags, ensuring that adjacent massage airbags can share the air source and adjust synchronously, which not only effectively simplifies the structure and facilitates processing, but also improves the efficiency of air pressure regulation, and facilitates the massage airbags to form massage stimulation by inflation and deflation.

[0013] Preferably, the air cushion includes a lower tube sheet spanning between corresponding supporting airbags, the two sides of the lower tube sheet are respectively adhered to the bottom surface of the substrate and enclosed to form the lower air tube, and the bottom surface of the substrate is provided with a lower air tube connected in series with the supporting airbags. The lower tube sheet spans between the top edges of adjacent supporting bags, and the side edges of the lower tube sheet and the top edges of the supporting bags are both adhered to the bottom surface of the substrate, so that the enclosed lower air tube can span between adjacent supporting airbags, ensuring that adjacent supporting airbags can share the air source and adjust the softness and hardness synchronously, which not only effectively simplifies the structure and facilitates processing, but also improves the efficiency of air pressure regulation, and facilitates the rapid adjustment of the supporting airbags by inflation and deflation.

[0014] Preferably, the substrate is provided with air holes, and the air holes are arranged offset from the air springs. The air holes are arranged to facilitate air flow, prevent moisture accumulation, and ensure that the air cushion remains dry.

[0015] A mattress comprises a cushion body and a control box, wherein the control box independently adjusts the air pressure in a massage airbag and a support airbag, wherein the mattress comprises an upper quilted layer, a comfort layer, a support layer and a lower quilted layer arranged in sequence from top to bottom, wherein the bottom surface of the comfort layer is provided with a limiting layer with perforations, wherein the air cushion is arranged between the comfort layer and the support layer, and wherein the base sheet is clamped by the bottom surface of the comfort layer and the top surface of the support layer so that the massage airbag can be retractably inserted into the perforations. The control box independently controls the massage airbag and the support airbag on the air cushion to meet the adjustment requirements of the hardness and massage stimulation intensity of the mattress respectively. The base sheet is clamped by the comfort layer and the support layer, which not only ensures that the air cushion remains flat, but also plays a role in horizontal positioning of the support airbag and the massage airbag to prevent relative displacement. The limiting layer is provided with perforations for the vertical deformation of the massage airbag. The perforations not only provide vertical deformation space for the massage airbag, ensuring that the massage stimulation generated by the massage airbag can be effectively transmitted upward, but also play a role in horizontal limiting the massage airbag, ensuring that the massage stimulation is transmitted vertically upward by guiding the deformation path of the massage airbag.

[0016] Preferably, the top surface of the support layer is provided with a receiving cavity corresponding to each of the supporting airbags. The supporting airbags are vertically inserted in the receiving cavity. A deformation space is reserved at the bottom of the receiving cavity for the supporting airbags to extend. The supporting airbags are inflated and extended and overlap the bottom wall of the deformation space, so that the massage airbags can obtain vertical support, so that the supporting airbags are suspended in the receiving cavity. The receiving cavity is used to accommodate the supporting airbags, which not only facilitates the vertical expansion and contraction deformation of the supporting airbags, but also plays a role in horizontally limiting the supporting airbags, ensuring that the supporting airbags can extend and contract vertically, providing effective support for the massage airbags and ensuring that the hardness of the mattress is adjustable, thereby improving the user experience. The bottom of the supporting airbag is suspended in the receiving cavity, which not only reserves expansion and contraction space for the supporting airbags, but also ensures that the massage airbags can be supported by the substrate, ensuring that the top surface of the mattress always remains flat.

[0017] Preferably, the vertical projections of the base sheet and the cushion body overlap with each other, which not only improves the horizontal limiting reliability by increasing the contact area between the base sheet and the limiting layer and between the base sheet and the supporting layer, but also eliminates the foreign body sensation and improves the lying experience by extending the edge of the base sheet to the edge of the mattress.

[0018] The beneficial effects of the utility model are as follows: the spring body is an integrated structure, including a massage airbag and a support airbag which are arranged in an upper and lower manner and isolated from each other. The bottom of the massage airbag and the top of the support airbag are fixedly connected by a substrate, which ensures that the massage airbag and the support airbag are coaxially arranged to prevent horizontal displacement between the two, ensures that the massage airbag forms an upward massage stimulation through inflation under the effective support of the support airbag, thereby improving the massage experience, and ensures that the position of the massage airbag is fixed, thereby performing targeted massage on specific body segments of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic cross-sectional structure diagram of the air spring described in Example 1;

[0020] Figure 2 It is a schematic cross-sectional view of the massage spring in the first embodiment when it is in an inflated state;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of the air cushion described in Example 2;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the mattress described in Example 3;

[0023] In the figure: 1. massage airbag, 2. support airbag, 3. base plate, 4. folded ring, 5. massage bag, 6. convex point, 7. unit bag, 8. support bag, 9. upper tube sheet, 10. lower tube sheet, 11. upper quilted layer, 12. lower quilted layer, 13. comfort layer, 14. support layer, 15. perforation, 16. control box, 17. limiting layer, 18. ventilation hole. DETAILED DESCRIPTION

[0024] The essential features of the present utility model are further described below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Embodiment 1:

[0026] This embodiment provides an air spring.

[0027] like Figure 1 and 2 An air spring shown includes a spring body, the spring body includes a massage airbag 1 and a support airbag 2 which are separated from each other in the upper and lower parts and isolated from each other, the massage airbag 1 and the support airbag 2 are fixedly connected by a substrate 3 and their axes are arranged to overlap with each other, so that the massage airbag 1 and the support airbag 2 can be deformed independently and linked vertically. The spring body includes a massage airbag 1 and a support airbag 2 which are separated from each other in the upper and lower parts and isolated from each other, the bottom of the massage airbag 1 and the top of the support airbag 2 are fixedly connected by a substrate 3, which ensures that the massage airbag 1 and the support airbag 2 are coaxially arranged to prevent horizontal deviation between the two, ensures that the massage airbag 1 forms an upward massage stimulation through inflation under the effective support of the support airbag 2, and improves the massage experience, and also ensures that the massage airbag 1 is fixed in position to perform targeted massage on a specific body segment of the user.

[0028] In this embodiment, the spring body includes a support bag 8, a massage bag 5 and a base sheet 3, and the support bag 8, the massage bag 5 and the base sheet 3 are independently processed and bonded to form the spring body. During bonding, the top edge of the support bag 8 is bonded to the bottom surface of the base sheet 3, and the bottom edge of the massage bag 5 is bonded to the top surface of the base sheet 3. After bonding in place, the axis of the massage bag 5 coincides with the axis of the support bag 8, ensuring that the support airbag 2 and the massage airbag 1 are coaxially fixed, ensuring that the support airbag 2 can provide effective support for the massage airbag 1, and ensuring that the massage airbag 1 can transmit massage stimulation upward.

[0029] In this embodiment, the periphery of the top surface of the support bag 8 and the periphery of the bottom surface of the massage bag 5 are both provided with an annular adhesive surface, so that the support bag 8 and the massage bag 5 can be adhered to the base film 3 through the adhesive surface, which not only ensures the reliability of the adhesion, but also ensures the adhesion sealing, thereby preventing the massage airbag 1 and the support airbag 2 from leaking.

[0030] In this embodiment, the support bag 8 and the massage bag 5 are integrally formed, which is convenient for processing and ensures the sealing of each area, thereby ensuring that the support airbag 2 and the massage airbag 1 can achieve corresponding functions through inflation and deflation.

[0031] In this embodiment, the top wall of the massage airbag 1 is provided with folded rings 4 which are arranged in sequence along the radial direction and formed by repeated vertical folding. The massage airbag 1 switches between an inflated state in which adjacent folded rings 4 are vertically extended and a contracted state in which adjacent folded rings 4 are vertically stacked by inflating and deflating air. The folded rings 4 are equidistantly arranged along the radial direction of the top wall of the massage airbag 1, which not only facilitates the massage airbag 1 to obtain a vertical telescopic space by unfolding the folded rings 4, but also facilitates the massage airbag 1 to reduce its thickness by folding and contracting, thereby eliminating the foreign body sensation caused to the user when the massage airbag 1 switches to the contracted state, and improving the lying comfort.

[0032] In this embodiment, the folded ring 4 on the top wall of the massage airbag 1 is expanded in diameter from the inside to the outside, which ensures that adjacent folded rings 4 will not overlap vertically, effectively reducing the thickness of the massage airbag 1 when it is switched to the contracted state, and ensures that the massage airbag 1 can drive the protrusion 6 to rise vertically when switching to the inflated state, thereby guiding the deformation of the massage airbag 1 and ensuring that the protrusion 6 can apply a pressing force to the user when it is lifted upward.

[0033] In this embodiment, the massage airbag 1 includes a massage bag 5, the bottom surface of which is exposed downward and is adhered and sealed by the top surface of the substrate 3, so that the massage bag 5 and the substrate 3 are enclosed to form the massage airbag 1. The folding ring 4 is provided on the massage bag 5, which is convenient for processing and can form the massage airbag 1 after being adhered to the substrate 3, ensuring that the massage airbag 1 can be accurately switched between the inflated state and the contracted state by inflation and deflation.

[0034] In this embodiment, a convex point 6 is provided in the middle of the top wall of the massage airbag 1, and the massage airbag 1 switches to the inflated state and applies massage stimulation upward through the convex point 6. The convex point 6 is independently processed and bonded to the middle of the top surface of the massage bag 5. The convex point 6 has a relatively hard characteristic, and the massage bag 5 has good deformability. The two are independently processed to obtain their respective soft and hard characteristics, and are bonded to ensure that the convex point 6 can rise and fall synchronously with the top of the massage airbag 1 and apply massage stimulation to the user.

[0035] In this embodiment, the support airbag 2 includes at least two vertically stacked and mutually connected unit bags 7, and the support airbag 2 is switched between an extended state and a contracted state by inflating and deflating. Specifically, the support bag 8 is formed by integrally processing the stacked unit bags 7, and is enclosed by bonding with the base sheet 3 to form the support airbag 2, which is convenient for processing, and facilitates bonding assembly by reducing the number of components, and ensures the sealing of the support airbag 2.

[0036] In this embodiment, the vertical projections of the unit capsules 7 overlap each other, and the middle parts of the facing surfaces of adjacent unit capsules 7 are connected. The support airbag 2 includes a support bag 8, and the top surface of the support bag 8 is exposed upward and is adhered and blocked by the bottom surface of the substrate 3, so that the support bag 8 and the substrate 3 are enclosed to form the support airbag 2. The support bag 8 includes an annular side wall and a bottom wall arranged at the bottom edge of the side wall. The side wall is formed into a vertically retractable unit capsule 7 through radial concave-convex deformation, which effectively reduces the number of components and improves the sealing performance by reducing the adhesion area.

[0037] Embodiment 2:

[0038] Compared with the first embodiment, this embodiment provides an air cushion.

[0039] like Figure 3 In the air cushion shown, the air springs share the substrate 3, and the air springs are arranged in a matrix on the substrate 3, so that adjacent air springs are positioned by being fixed to the substrate 3. By increasing the size of the substrate 3, the number of air springs can be increased, thereby ensuring that the air springs can be arranged and positioned in a matrix manner, ensuring that each area of ​​the air cushion has a soft and hard adjustment function due to the arrangement of the support springs, and also ensuring that the massage springs can provide massage stimulation to each body segment of the user, thereby improving the comfort of use.

[0040] In this embodiment, the air springs are arranged in a matrix, which ensures that the support airbags 2 and the massage airbags 1 correspond vertically and can be inflated and deflated independently, and also ensures that the support airbags 2 and the massage airbags 1 are arranged in a matrix. The support airbags 2 are connected by a lower air pipe and share an air source, and the massage airbags 1 are connected by an upper air pipe and share an air source, which ensures that the support airbags 2 and the massage airbags 1 can operate independently and facilitates control by simplifying the pipeline structure.

[0041] In this embodiment, the top surface of the substrate 3 is provided with an upper air tube connected in series with the massage airbags 1, and the air cushion includes an upper tube sheet 9 spanning between the corresponding massage airbags 1, and the two sides of the upper tube sheet 9 are respectively adhered to the top surface of the substrate 3 and enclosed to form the upper air tube. The end edge of the upper tube sheet 9 spans between the peripheral edges of the bottom surfaces of adjacent massage bags 5, so that when the side edge of the upper tube sheet 9 is adhered to the top surface of the substrate 3, it can enclose to form an upper air tube spanning between adjacent massage airbags 1. By arranging the upper air tube between adjacent massage airbags 1, all massage airbags 1 are connected, which is convenient for sharing the air source and performing synchronous inflation and deflation operations.

[0042] In this embodiment, the air cushion includes a lower tube sheet 10 spanning between the corresponding support airbags 2, and the two sides of the lower tube sheet 10 are respectively adhered to the bottom surface of the substrate 3 and enclosed to form the lower air tube, and the bottom surface of the substrate 3 is provided with a lower air tube connected in series with the support airbags 2. The end edge of the lower tube sheet 10 spans between the peripheral edges of the top surfaces of adjacent support bags 8, so that when the side edge of the lower tube sheet 10 is adhered to the bottom surface of the substrate 3, it can enclose to form a lower air tube spanning between adjacent support airbags 2. By arranging the lower air tube between adjacent support airbags 2, all support airbags 2 are connected, which is convenient for sharing the air source and performing synchronous inflation and deflation operations.

[0043] In this embodiment, the base sheet 3 is provided with a vent hole 18, and the vent hole 18 is staggered with the air spring. The vent hole 18 is staggered with the air spring to ensure that the adhesion between the base sheet 3 and the support bag 8 and the massage bag 5 remains flat, to ensure that the air spring has good sealing performance, and to ensure that the upper and lower areas of the base sheet 3 can achieve airflow through the vent hole 18, effectively preventing moisture accumulation and improving the comfort of use.

[0044] It can be understood that the upper air pipe and the lower air pipe can also be separately processed pipes, which are assembled between adjacent air springs by cutting suitable lengths, and should also be regarded as a specific implementation of this embodiment.

[0045] The other structures and effects of the air spring described in this embodiment are consistent with those in the first embodiment and will not be described in detail.

[0046] Embodiment three:

[0047] Compared with the second embodiment, this embodiment provides a mattress.

[0048] like Figure 4 The mattress shown includes a cushion body and a control box 16. The control box 16 independently adjusts the air pressure in the massage airbag 1 and the support airbag 2. The mattress includes an upper quilted layer 11, a comfort layer 13, a support layer 14 and a lower quilted layer 12 arranged in sequence from top to bottom. The bottom surface of the comfort layer 13 is provided with a limiting layer 17 with perforations 15. The air cushion is arranged between the comfort layer 13 and the support layer 14. The base sheet 3 is clamped by the bottom surface of the comfort layer 13 and the top surface of the support layer 14 so that the massage airbag 1 can be retractably inserted into the perforations 15. The control box 16 is provided with a controller, an air pump and a solenoid valve. The control box 16 can independently control the support airbag 2 and the massage airbag 1 so that the two can independently realize their respective functions.

[0049] In this embodiment, the vertical projections of the base sheet 3 and the cushion body overlap with each other. During installation, the base sheet 3 is clamped between the comfort layer 13 and the support layer 14, and the edge of the base sheet 3 is located at the edge of the comfort layer 13. This improves the positioning effect by increasing the contact area between the comfort layer 13 and the base sheet 3, and between the support layer 14 and the base sheet 3, thereby ensuring that the top surface of the cushion body remains flat, thereby preventing local depression caused by the support airbag 2 switching to a contracted state.

[0050] In this embodiment, a limiting layer 17 with a perforation 15 is provided between the comfort layer 13 and the base sheet 3. After installation, the massage spring can be exposed upward through the perforation 15, which not only facilitates the expansion and contraction of the massage spring and forms massage stimulation, but also guides the massage airbag 1 to expand and contract along a preset path, ensuring that the massage stimulation is applied vertically upward, and preventing the massage airbag 1 from being offset due to force.

[0051] In this embodiment, the top surface of the support layer 14 is provided with a receiving cavity corresponding to each of the supporting airbags 2. The supporting airbags 2 are vertically inserted in the receiving cavity. The bottom of the receiving cavity reserves a deformation space for the supporting airbags 2 to extend. The supporting airbags 2 are inflated and extended and overlap with the bottom wall of the deformation space, so that the massage airbags 1 obtain vertical support, so that the supporting airbags 2 are suspended in the receiving cavity. The supporting airbags 2 are telescopically suspended in the receiving cavity. When the supporting airbags 2 are switched to the extended state, the bottom of the supporting airbags 2 are in contact with the bottom wall of the receiving cavity and form an upward supporting force, which effectively improves the hardness of the cushion body. When the supporting airbags 2 are switched to the contracted state, the bottom of the supporting airbags 2 are separated from the bottom wall of the receiving cavity, and the top surface of the cushion body has a downwardly concave space, which makes the cushion body softer, and it is convenient for the user to adjust the hardness of the cushion body by adjusting the height of the supporting airbags 2.

[0052] The other structures and effects of the air cushion described in this embodiment are consistent with those in the second embodiment and will not be described in detail.

Claims

1. An air spring, comprising a spring body, characterized in that: The spring body comprises a massage airbag (1) and a support airbag (2) which are arranged in an upper and lower manner and isolated from each other. The massage airbag (1) and the support airbag (2) are fixedly connected via a base plate (3) and their axes are arranged to overlap with each other, so that the massage airbag (1) and the support airbag (2) can deform independently and move in a vertical linkage.

2. An air spring according to claim 1, characterized in that: The top wall of the massage airbag (1) is provided with folded rings (4) which are arranged in sequence along the radial direction and formed by repeated vertical folding. The massage airbag (1) is switched between an inflated state in which adjacent folded rings (4) are vertically extended and a contracted state in which adjacent folded rings (4) are vertically stacked by inflation and deflation.

3. An air spring according to claim 2, characterized in that: The massage airbag (1) comprises a massage bag (5), the bottom surface of which is exposed downward and is sealed by the top surface of the substrate (3), so that the massage bag (5) and the substrate (3) are enclosed to form the massage airbag (1); or, a convex point (6) protruding upward is provided in the middle of the top wall of the massage airbag (1), and the massage airbag (1) is switched to an inflated state and applies massage stimulation upward through the convex point (6).

4. The air spring according to claim 1, characterized in that: The support airbag (2) comprises at least two unit bags (7) which are vertically stacked and interconnected. The support airbag (2) can be switched between an extended state and a contracted state by inflation and deflation.

5. An air spring according to claim 4, characterized in that: The vertical projections of the unit capsules (7) overlap with each other, and the middle parts of the facing surfaces of adjacent unit capsules (7) are connected; or, the support airbag (2) includes a support bag (8), the top surface of the support bag (8) is exposed upward and is adhered and sealed by the bottom surface of the base sheet (3), so that the support bag (8) and the base sheet (3) are enclosed to form the support airbag (2).

6. An air cushion using the air spring according to any one of claims 1 to 5, characterized in that: The air springs share the substrate (3), and the air springs are arranged in a matrix on the substrate (3), so that adjacent air springs are positioned by being fixedly connected to the substrate (3).

7. An air cushion according to claim 6, characterized in that: The top surface of the substrate (3) is provided with an upper air tube connected in series with the massage airbags (1), and the air cushion includes an upper tube sheet (9) spanning between the corresponding massage airbags (1), and the two sides of the upper tube sheet (9) are respectively adhered to the top surface of the substrate (3) and enclosed to form the upper air tube; or, the bottom surface of the substrate (3) is provided with a lower air tube connected in series with the support airbags (2), and the air cushion includes a lower tube sheet (10) spanning between the corresponding support airbags (2), and the two sides of the lower tube sheet (10) are respectively adhered to the bottom surface of the substrate (3) and enclosed to form the lower air tube.

8. An air cushion according to claim 6, characterized in that: The base sheet (3) is provided with an air hole (18), and the air hole (18) is arranged offset from the air spring.

9. A mattress using the air cushion according to any one of claims 6 to 8, comprising a cushion body and a control box (16), wherein the control box (16) independently adjusts the air pressure in the massage airbag (1) and the support airbag (2), and the mattress comprises an upper quilted layer (11), a comfort layer (13), a support layer (14) and a lower quilted layer (12) arranged in sequence from top to bottom, characterized in that: The bottom surface of the comfort layer (13) is provided with a limiting layer (17) with a perforation (15), the air cushion is arranged between the comfort layer (13) and the support layer (14), and the base sheet (3) is clamped by the bottom surface of the comfort layer (13) and the top surface of the support layer (14), so that the massage airbag (1) can be telescopically inserted into the perforation (15).

10. A mattress according to claim 9, characterized in that: The top surface of the support layer (14) is provided with accommodating cavities corresponding to the supporting airbags (2) one by one. The supporting airbags (2) are vertically inserted in the accommodating cavities. A deformation space for the supporting airbags (2) to extend is reserved at the bottom of the accommodating cavities. The supporting airbags (2) are inflated and extended and overlap with the bottom wall of the deformation space, so that the massage airbags (1) obtain vertical support, so that the supporting airbags (2) are suspended in the accommodating cavities; or, the vertical projections of the base sheet (3) and the cushion body overlap each other.

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