An air spring, a processing method, an air cushion, and a mattress.

Abstract

This invention relates to an air spring, a processing method, an air cushion, and a mattress. Existing air springs suffer from cumbersome processing. This invention includes a spring body with inflation holes. The spring body comprises vertically stacked and bonded annular sheets. Adjacent annular sheets are bonded together to form vertically stacked annular air chambers, which are connected by through holes. The spring body is formed by stacking and bonding annular sheets. Adjacent annular sheets enclose each other to form air chambers, and adjacent air chambers are stacked to form the spring body. This method effectively reduces processing difficulty, thereby lowering processing costs and improving processing efficiency by using independently processed annular sheets to enclose and form stacked air chambers. Furthermore, the annular sheets can create a hollow structure in the middle of the spring body, effectively reducing the amount of air required to adjust the air pressure without reducing the outer diameter of the spring body. This shortens the air pressure adjustment time, effectively improves the air pressure adjustment response speed, and enhances the user experience.

Description

Technical Field

[0001] This invention relates to the field of bedding, specifically to an air spring, a processing method, an air cushion, and a mattress. Background Technology

[0002] Existing mattresses include air springs with adjustable air pressure, allowing for adjustable firmness. However, these air springs consist of a one-piece, cylindrical spring body, which presents several drawbacks: the cylindrical spring body has a large internal space, requiring a large volume of gas to be pumped in and out when adjusting the air pressure. This slows down the pressure adjustment process and affects the mattress's responsiveness to varying user needs for firmness support. Furthermore, the one-piece spring body is difficult to manufacture, placing higher demands on processing equipment and increasing manufacturing costs. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an air spring, a processing method, an air cushion, and a mattress. The spring body is formed by stacking annular sheets, which can effectively improve the response speed of softness and hardness control, facilitate processing, and reduce processing costs.

[0004] This invention is achieved through the following method: an air spring includes a spring body with an inflation hole. The spring body comprises vertically stacked and bonded annular sheets. Adjacent annular sheets are bonded together to form vertically stacked annular air chambers, which are connected by through holes. The spring body is formed by stacking and bonding annular sheets. Adjacent annular sheets enclose each other to form air chambers, and adjacent air chambers are stacked to form the spring body. This method not only allows for the formation of stacked air chambers by independently processed annular sheets, effectively reducing processing difficulty, thereby reducing processing costs and improving processing efficiency, but also utilizes the annular sheets to form a hollow structure in the middle of the spring body. This effectively reduces the amount of air required to adjust the air pressure without reducing the outer diameter of the spring body, shortening the air pressure adjustment time, effectively improving the air pressure adjustment response speed, and enhancing the user experience.

[0005] Preferably, the annular sheet includes an edge bonding area and a center bonding area. The annular sheets are stacked and bonded by alternately using the edge bonding area and the center bonding area, so that the annular sheets are vertically stacked and enclosed to form the air chamber. Adjacent annular sheets achieve the purpose of enclosing and forming air chambers and fixing adjacent air chambers by alternately using the edge bonding area and the center bonding area, respectively, so that the annular sheets can be quickly processed into spring bodies, improving processing efficiency.

[0006] Preferably, the edge-adhesive area includes the inner edge and outer edge of the annular sheet. Adjacent annular sheets are connected and enclosed by corresponding inner and outer edges to form the air chamber. Adjacent annular sheets have inner edges of the same size, allowing them to be vertically stacked and sealed together. Adjacent annular sheets also have outer edges of the same size, enabling them to be vertically stacked and sealed together. This seals and fixes the adjacent annular sheets together through their corresponding inner and outer edges, forming an annular air chamber isolated from the external space. This reduces the air chamber volume, improving the adjustment response speed, and increases the anti-tipping performance of the spring body and enhances support reliability by increasing the outer diameter of the air chamber.

[0007] Preferably, the central adhesive area is located between the outer and inner edges of the annular sheet, and the corresponding end faces of adjacent air chambers are bonded and fixed together through the central adhesive area, so that the air chambers are vertically stacked. The corresponding annular sheets of adjacent air chambers are bonded and fixed together through the central adhesive area, so that the air chambers are vertically stacked and positioned. This not only ensures that the spring body can effectively withstand vertical forces and prevent tilting and deformation, but also provides a horizontal limiting effect for adjacent air chambers, preventing slippage between adjacent air chambers.

[0008] Preferably, the annular sheet has a square ring shape or a drum shape or other annular contours, which can not only meet the design requirements for the air chamber arrangement, but also ensure that the spring has a good air pressure regulation response speed.

[0009] Preferably, the annular sheet is circular in shape, with an outer radius of A and an inner radius of B, where 0.25 ≤ B / A ≤ 0.5. By rationally setting the ratio between the outer and inner radii of the annular sheet, the radial width between the outer and inner edges meets the usage requirements. This ensures that the air chamber has a sufficient height variation range to meet usage requirements, effectively limits the cross-sectional profile of the air chamber to reduce the amount of gas required for pressure regulation, improves response speed, and provides a larger bonding area for adhesion between the inner and outer edges, thus improving the reliability of the adhesive seal.

[0010] Preferably, the width of the central adhesion zone is C, where 0.3 ≤ C / (AB) ≤ 0.5. Setting the width of the central adhesion zone not only increases the structural strength of the connection between adjacent air chambers, preventing detachment and improving vertical support reliability, but also increases the distance between the central and side adhesion zones by limiting the width of the central adhesion zone, facilitating thickness adjustment of the air chambers.

[0011] Preferably, the through hole is located in the central bonding area where adjacent air chambers fit together. Adjacent air chambers are bonded and fixed together through the central bonding area of ​​the corresponding annular sheet. The opening is located in the central bonding area, which can both utilize the central bonding area located at the periphery of the through hole for bonding and sealing, preventing air from leaking out of the air chamber through the periphery of the through hole, and ensure that the air chambers are connected through the through hole and achieve synchronous air pressure regulation, thereby improving the air pressure regulation response speed of the spring body.

[0012] Preferably, there are at least two through holes, which are equidistantly spaced along the circumference of the central adhesion area. Increasing the number of through holes improves the efficiency of synchronous adjustment of each air chamber. The equidistant placement of the through holes ensures that each section of the air chamber can be adjusted for air pressure through the corresponding through hole, thus ensuring smooth lifting and lowering of the spring body.

[0013] A method for manufacturing the aforementioned air spring, the method comprising the following steps:

[0014] First, adjacent annular sheets are heat-fused together through the central bonding area to form a unit. The adjacent sheets are stacked vertically and heat-fused together through the vertically aligned central bonding area, so that the adjacent sheets are fixed together. Since the edge bonding areas are not bonded, the central bonding area is exposed, which facilitates processing.

[0015] Subsequently, a vertical through hole is made in the central bonding area. Since the unit is set in the middle section of the spring body, a vertical through hole is made in the unit to penetrate the two annular sheets. There is no need to control the depth of the through hole, which reduces the processing difficulty, effectively reduces the number of scraps, and reduces the processing cost.

[0016] Then, the unit components are stacked vertically and bonded together by hot melting in the corresponding edge bonding area to form a semi-finished product. Adjacent unit components are stacked and the inner and outer edges of the adjacent annular sheet are bonded accordingly. The central cavity of the annular sheet provides operating space for bonding the corresponding inner edge, and the external space of the annular sheet forms operating space for bonding the corresponding outer edge. By reducing the processing difficulty, the processing quality is improved, and the sealing reliability of the air chamber is ensured.

[0017] Finally, the independent annular sheets are bonded to the top and bottom surfaces of the semi-finished product through the edge bonding area to form an air spring with stacked air chambers. After the unit components are stacked and fixed, the upper annular sheet of the top unit component is connected to the edge bonding area of ​​the single annular sheet, thereby forming the top air chamber of the spring body. The lower annular sheet of the bottom unit component is connected to the edge bonding area of ​​the single annular sheet, thereby forming the bottom air chamber of the spring body. This makes the spring body have vertically stacked air chambers that are isolated from the outside space.

[0018] By bonding adjacent annular sheets at different positions of the spring body in a preset order, the processing difficulty of the spring body is effectively reduced, which not only improves processing efficiency but also ensures processing quality, thereby reducing processing costs by reducing waste.

[0019] An air cushion includes air springs and a base for assembling and positioning the air springs. The base includes a base layer and a cover layer stacked on the base layer. The base layer and the cover layer enclose a sealed air channel, which is connected to the outside via an air tube. The air springs are vertically positioned on top of the base and connected to the sealed air channel, allowing the air tube to synchronously adjust the air springs through the sealed air channel. The cover layer covers the base layer and forms a sealed air channel, which can be connected to multiple air springs to synchronously adjust the air pressure inside the air springs. This effectively simplifies the structure for controlling the air pressure inside the air springs, facilitating both manufacturing and control, and making the air cushion's firmness adjustable.

[0020] Preferably, the cover layer has a connection hole, and the airbag spring is adhered to the cover layer via its bottom surface and sealed to the connection hole via an inflation hole. The spring body is adhered to the top surface of the cover layer via its bottom surface, so that the connection hole can align with the inflation hole on the spring body, ensuring that the sealed air passage can regulate the air pressure inside the airbag spring.

[0021] Preferably, the covering layer forms the bottom wall of the air spring, so that the inflation hole is formed on the covering layer. The covering layer serves as the bottom wall of the air spring and is connected to the lower annular sheet of the bottom unit through an edge bonding area. This eliminates the need for separate bonding processing of the spring body's bottom wall, improves assembly efficiency by simplifying the air cushion structure, and saves materials, reducing material costs. The inflation hole, located on the covering layer, connects the spring body to the sealed air passage.

[0022] Preferably, the base includes multiple rows of equally spaced, elongated, sealed air channels. The airbag springs are equally spaced along the sealed air channels, so that the air cushion can be divided into multiple independently adjustable zones. The elongated shape of the sealed air channels allows the airbag springs on them to be arranged in an elongated pattern and synchronously adjusted in air pressure. Multiple sealed air channels are connected by air tubes and the corresponding airbag springs are adjusted synchronously, allowing the air cushion to be divided into multiple zones with individually adjustable firmness. This ensures that users can adjust the firmness of each zone according to their own needs, thereby meeting the differentiated support needs of different body parts.

[0023] A mattress includes an air cushion with an outer edge and a comfort layer covering its top surface. The outer edge and comfort layer work together to enclose the air cushion, providing both protection and comfort to the user.

[0024] The beneficial effects of this invention are as follows: The spring body is formed by stacking and bonding annular sheets. Adjacent annular sheets are enclosed to form air chambers, and adjacent air chambers are stacked to form the spring body. This not only allows for the formation of stacked air chambers by enclosing independently processed annular sheets, effectively reducing processing difficulty, thereby reducing processing costs and improving processing efficiency, but also utilizes the annular sheets to form a hollow structure in the middle of the spring body. This effectively reduces the amount of air required to adjust the air pressure without reducing the outer diameter of the spring body, shortens the air pressure adjustment time, effectively improves the air pressure adjustment response speed, and enhances the user experience. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the air spring described in Embodiment 1;

[0026] Figure 2 This is a schematic diagram of the airbag spring described in Embodiment 1;

[0027] Figure 3 This is a schematic diagram of the structure of the annular sheet described in Embodiment 1;

[0028] Figure 4 This is a schematic diagram of the connection structure of the airbag spring described in Embodiment 2;

[0029] Figure 5 This is a schematic diagram of the disassembly structure of the airbag spring described in Example 2;

[0030] Figure 6 This is a schematic diagram of the base structure described in Embodiment 3;

[0031] Figure 7 This is a partial structural diagram of the air cushion described in Example 3;

[0032] Figure 8 This is a partial cross-sectional view of the base described in Embodiment 3;

[0033] Figure 9 This is a schematic diagram of the disassembled structure of the mattress described in Example 4;

[0034] In the diagram: 1. Inflation hole, 2. Spring body, 3. Annular sheet, 4. Air chamber, 5. Edge bonding area, 6. Center bonding area, 7. Base layer, 8. Covering layer, 9. Sealing air passage, 10. Air tube, 11. Air cushion, 12. Edge, 13. Comfort layer, 14. Unit component, 15. Through hole. Detailed Implementation

[0035] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1:

[0037] This embodiment provides an air spring.

[0038] like Figure 1 The air spring shown comprises a spring body 2 with an inflation hole 1. The spring body 2 includes vertically stacked and bonded annular sheets 3. Adjacent annular sheets 3 are bonded together to form vertically stacked annular air chambers 4, which are connected by through holes 15. The spring body 2 includes multiple annular air chambers 4 formed by bonding the annular sheets 3, and these air chambers 4 are vertically aligned and stacked. The spring body 2 has a vertically oriented columnar hollow cavity in the middle. This design utilizes the annular sheets 3 to form the hollow cavity, effectively reducing the amount of air required for adjusting the air pressure without reducing the outer diameter of the spring body 2, shortening the air pressure adjustment time, and effectively improving the air pressure adjustment response speed. Furthermore, the bonding of the annular sheets 3 to form the spring body 2 effectively reduces processing difficulty, thereby reducing processing costs, improving processing efficiency, and enhancing the user experience.

[0039] In this embodiment, the spring body 2 includes multiple vertically stacked annular air chambers 4, which are connected by through holes 15, so that the air pressure in each air chamber 4 within the spring body 2 remains balanced and can be adjusted synchronously, thereby allowing the stiffness of the spring body 2 to be quickly adjusted. In use, the spring body 2 is connected to external devices (such as...) through the inflation port 1. Figure 2 As shown, the air pressure inside the spring body 2 is adjusted. When it is necessary to adjust the softness and hardness of the spring body 2, the external equipment performs air inflation and deflation operations on the spring body 2 through the air inflation port 1. Each air chamber 4 performs synchronous air inflation and deflation operations through the through hole 15, so that the air pressure of each air chamber 4 inside the spring body 2 is adjusted synchronously and the height of the spring body 2 is adjusted, ensuring that the softness and hardness of the spring body 2 meets the user's needs.

[0040] In this embodiment, the annular sheet 3 includes an edge bonding area 5 and a center bonding area 6. The annular sheet 3 is stacked and bonded by alternately using the edge bonding area 5 and the center bonding area 6, so that the annular sheet 3 is vertically stacked and enclosed to form the air chamber 4. Specifically, the annular sheet 3 has a sheet-like structure, which is convenient for large-scale and rapid processing and production. The annular sheet 3 is annular with an opening in the middle. The inner edge and outer edge of the annular sheet 3 form the edge bonding area 5. The center bonding area 6 is located in the area between the inner edge and the outer edge of the annular sheet 3. Adjacent sheets are bonded together by using the edge bonding area 5 or the center bonding area 6 to achieve the function of enclosing and forming the air chamber 4 or connecting and positioning adjacent air chambers 4, thereby forming a spring body 2 with multiple vertically stacked air chambers 4.

[0041] In this embodiment, the edge-adhesive area 5 includes the inner edge and outer edge of the annular sheet 3. Adjacent annular sheets 3 are connected and enclosed by their corresponding inner and outer edges to form the air chamber 4. The vertical projection contours of the annular sheets 3 coincide. During processing, the corresponding inner and outer edges of the annular sheets 3 are vertically stacked and bonded together by heat fusion, so that the two annular sheets 3 respectively form the upper and lower walls of the air chamber 4, ensuring that the air chamber 4 is isolated from the external space. The width of both the outer and inner edges of the annular sheets is at least 2 mm. Increasing the width of the outer and inner edges improves the reliability and sealing of the adhesion between adjacent annular sheets.

[0042] In this embodiment, the central adhesive area 6 is disposed between the outer edge and the inner edge of the annular sheet 3. The corresponding end faces of adjacent air chambers 4 are bonded and fixed together through the central adhesive area 6, so that the air chambers 4 are vertically stacked. The lower annular sheet 3 of the upper air chamber 4 and the upper annular sheet 3 of the lower air chamber 4 are heat-fused together through the vertically aligned central adhesive area 6. This not only positions the relative positions of adjacent air chambers 4, preventing them from slipping off, but also ensures that the vertical force can be stably transmitted between adjacent air chambers 4, thereby improving the vertical support performance of the airbag spring, and also provides space for opening the through hole 15. The through hole 15 is opened on the central bonding area 6 where adjacent air chambers 4 are attached. The diameter of the through hole 15 is smaller than the width of the central bonding area 6. After the through hole 15 is opened, the periphery of the through hole 15 falls completely into the central bonding area 6, ensuring the connection and sealing of the periphery of the through hole 15, preventing the air in the air chamber 4 from communicating with the outside through the gap between adjacent annular sheets 3, and ensuring the airtightness of the air chamber 4.

[0043] In this embodiment, the annular sheet 3 is in the shape of a ring (e.g., Figure 3 As shown in the figure, the outer radius of the annular sheet 3 is A, and the inner radius of the annular sheet 3 is B. 0.25≤B / A≤0.5. By reasonably setting the ratio between the outer radius and the inner radius of the annular sheet 3, it is possible to ensure that the width of the annular sheet 3 meets the usage requirements for enclosing and forming the air chamber 4, provide operating space for the fixed edge adhesive area 5, and reduce the amount of gas required to adjust the hardness of the spring body 2 by limiting the volume inside the air chamber 4, thereby improving the adjustment response speed.

[0044] In this embodiment, the width of the central adhesive area 6 is C, 0.3≤C / (AB)≤0.5. This not only improves the adhesion and sealing performance by increasing the width of the side adhesive areas 5 and the central adhesive area 6, but also ensures that the air chamber 4 has a lifting range that meets the design requirements by increasing the distance between the outer edge and the central adhesive area 6 and between the inner edge and the central adhesive area 6. In turn, the hardness can be adjusted by adjusting the height of the spring body 2.

[0045] In this embodiment, there are at least two through holes 15, which are equidistantly distributed along the circumference of the central adhesion area 6. By increasing the number of through holes 15, the airflow velocity between adjacent air chambers 4 is increased, ensuring that the air pressure in the air chamber 4 is regulated synchronously. The equidistant distribution of the through holes 15 effectively shortens the flow distance of the airflow in the air chamber 4. Each section of the air chamber 4 can be filled and deflated through the corresponding through holes 15, so that the air pressure in each section of the air chamber 4 can be regulated synchronously.

[0046] In this embodiment, the outline of the annular sheet 3 can have various structures, including a square ring or a drum shape, all of which should be considered specific embodiments of this embodiment. When the annular sheet 3 is a non-circular annular structure, the parameter AB represents the width of the annular sheet 3 and satisfies the requirement of 0.3≤C / (AB)≤0.5. The drum shape includes two parallel straight line segments and an arc segment spanning the corresponding ends of the straight line segments.

[0047] In this embodiment, the value of data B / A can be 0.25, 0.35, 0.45, 0.5, etc., as long as it meets the requirement of 0.25≤B / A≤0.5.

[0048] In this embodiment, the value of data C / (AB) can be 0.3, 0.35, 0.45, 0.5, etc., as long as it meets the requirement of 0.3≤C / (AB)≤0.5.

[0049] Example 2:

[0050] Compared to Embodiment 1, this embodiment provides a method for processing the air spring.

[0051] like Figure 4 and 5 As shown, a method for processing an air spring includes the following steps:

[0052] First, adjacent annular sheets 3 are hot-melted and bonded together through a central bonding area 6 to form unit parts 14. Multiple unit parts 14 for stacking are obtained by repeating the operation.

[0053] Subsequently, vertical through holes 15 are made in the central bonding area 6 of each unit 14. Since the unit 14 includes two annular sheets 3 and the through holes 15 need to penetrate both annular sheets 3 at the same time, there is no need to control the depth of the through holes 15, which facilitates processing.

[0054] Then, the unit components 14 are stacked vertically and hot-melt bonded together through the corresponding edge bonding area 5 to form a semi-finished product. The middle space of the unit component 14 forms an operating space for bonding the inner edge, and the outer space of the unit component 14 forms an operating space for bonding the outer edge, so that adjacent unit components 14 can be hot-melt bonded together through the adjacent annular sheet 3 to form an air chamber 4 located in the middle section of the spring body 2.

[0055] Finally, the individual annular sheets 3 are bonded to the top and bottom surfaces of the semi-finished product through the edge bonding area 5 to form an air spring with stacked air chambers 4. The individual annular sheets 3 are bonded to the annular sheets 3 on the top and bottom surfaces of the semi-finished product, thereby forming the air chambers 4 at the bottom and top of the spring body 2.

[0056] During processing, the processing sequence of the stacked annular sheets 3 is adjusted to facilitate processing, thereby effectively improving processing efficiency, reducing the amount of scrap, reducing processing costs, and ensuring product quality. Specifically, the process of installing the bottom and top walls of the spring body 2 is placed after the process of forming the semi-finished product, which facilitates the processing of the through hole 15 and ensures that the through hole 15 will not penetrate the top and bottom walls of the spring body 2 when it is opened; the process of bonding adjacent annular sheets 3 of adjacent air chambers 4 through the central bonding area 6 is placed before the process of bonding adjacent annular sheets 3 of the same air chamber 4 through the side bonding area 5, which facilitates the bonding of the central bonding area 6 and prevents the bonding of the side bonding area 5 from affecting the bonding operation of the central bonding area 6, thus improving processing convenience.

[0057] The other structures and effects of the air spring described in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

[0058] Example 3:

[0059] Compared to Embodiment 1, this embodiment provides an air cushion.

[0060] like Figure 6 and 7 An air cushion 11 is shown, including an air spring and a base for assembling and positioning the air spring. The base includes a base layer 7 and a covering layer 8 stacked on the base layer 7. The base layer 7 and the covering layer 8 enclose a sealed air passage 9. The sealed air passage 9 is connected to the outside through an air tube 10. The air spring is placed vertically on the base and connected to the sealed air passage 9, so that the air tube 10 can synchronously adjust the air spring through the sealed air passage 9.

[0061] In this embodiment, the base not only supports the airbag springs, ensuring that the airbag springs are positioned and installed in a preset layout, but also uses the preset sealed air passage 9 to control the air pressure of the airbag springs. In this way, the softness and hardness of the air cushion 11 can be adjusted by adjusting the air pressure of each airbag spring.

[0062] In this embodiment, the base includes a base layer 7 and a cover layer 8 stacked on the base layer 7. The base layer 7 and the cover layer 8 together form a sealed air passage 9, and the vertical projection of the cover layer 8 is completely contained within the base layer 7. Specifically, the cover layer 8 is elongated, and its end edges and side edges are adhered to the top surface of the base layer 7 to form a sealed air passage 9 communicating with the airbag spring between the base layer 7 and the cover layer 8. The periphery of the cover layer 8 has an equal-width contact area with the base layer 7, which ensures that the vertical projection of the sealed air passage 9 is completely contained within the cover layer 8, allowing the contour of the sealed air passage 9 to be adjusted according to the contour of the cover layer 8 to meet the airbag spring layout requirements. It also ensures reliable adhesion and sealing between the periphery of the cover layer 8 and the base layer 7, preventing air leakage.

[0063] In this embodiment, a connecting hole is formed on the covering layer 8. The air spring is adhered to the covering layer 8 via its bottom surface and is sealed to the connecting hole via the inflation hole 1. The bottom surface of the air spring is adhered and fixed to the covering layer 8, so that the connecting hole and the inflation hole 1 are aligned and sealed. The inflation hole 1 is formed in the centrally located adhesion area 6 on the bottom surface of the spring body 2. The centrally located adhesion area 6 is attached to and surrounds the inflation hole 1 with the top surface of the covering layer 8, so that the inflation hole 1 is sealed to the connecting hole and can be smoothly inflated and deflated.

[0064] In this embodiment, the base includes multiple rows of elongated, equidistantly spaced sealing air channels 9. The airbag springs are equidistantly spaced along the sealing air channels 9, allowing the air cushion 11 to be divided into multiple independently adjustable zones. The sealing air channels 9 are multiple and equidistantly parallel along the front-back direction of the air cushion 11. The airbag springs are equidistantly positioned on the corresponding sealing air channels 9, allowing the airbag springs on the top surface of the air cushion 11 to be arranged in a regular matrix pattern. Adjacent sealing air channels 9 can be connected via air tubes 10 (e.g., ...). Figure 8 As shown, by adjusting and controlling the sealed airway 9 connected to the single air tube 10, the air cushion 11 can be divided into multiple zones with independently adjustable air spring stiffness, and the stiffness of all air springs in each zone is adjusted synchronously, ensuring that the air cushion 11 can independently adjust each zone according to the support requirements of each part of the user's body, thereby improving support comfort.

[0065] In this embodiment, the covering layer 8 forms the bottom wall of the airbag spring, so that the inflation hole 1 is opened on the covering layer 8. The covering layer 8 can not only enclose the base layer 7 to form a sealed air passage 9, but also adhere to the bottom of the airbag spring to form the bottom wall of the airbag spring. This is convenient for processing and saves raw materials, and should also be regarded as a specific implementation of this embodiment.

[0066] The other structures and effects of the air spring described in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

[0067] Example 4:

[0068] Compared to Embodiment 3, this embodiment provides a mattress.

[0069] like Figure 9 The mattress shown comprises an air cushion 11, with an outer edge 12 around the air cushion 11 and a comfort layer 13 covering the top surface of the air cushion 11. The outer edge 12 is a separate structure and is laid out in a matching manner along each edge of the air cushion 11. The comfort layer 13 completely covers the top surface of the air cushion 11, ensuring that all areas of the top surface of the air cushion 11 have good comfort.

[0070] In this embodiment, the mattress includes a wrapping bag that covers the air cushion 11, the edge band 12, and the comfort layer 13. This bag not only wraps and positions the air cushion 11, the edge band 12, and the comfort layer 13, but also protects them. Furthermore, the bag can be washed separately to facilitate cleaning and maintenance of the mattress, thus improving the user experience.

[0071] The other structures and effects of the air cushion described in this embodiment are the same as those in Embodiment 3, and will not be repeated here.

Claims

1. A method for processing an air spring, characterized in that, First, adjacent annular sheets (3) are heat-fused together through the central bonding area (6) to form a unit (14); then, a vertical through hole (15) is opened in the central bonding area (6); then, the unit (14) is vertically stacked and heat-fused together through the corresponding edge bonding area (5) to form a semi-finished product; finally, the independent annular sheets (3) are respectively bonded to the top and bottom surfaces of the semi-finished product through the edge bonding area (5) to form an airbag spring with stacked air chambers (4).

2. An air spring, comprising a spring body (2) with an inflation hole (1), characterized in that, The spring body (2) is formed by the processing method described in claim 1. The spring body (2) includes vertically stacked and bonded annular sheets (3). Adjacent annular sheets (3) are bonded together to form vertically stacked annular air chambers (4). Adjacent air chambers (4) are connected through through holes (15).

3. The air spring according to claim 2, characterized in that, The annular sheet (3) includes an edge bonding area (5) and a center bonding area (6). The annular sheet (3) is stacked and bonded by alternately using the edge bonding area (5) and the center bonding area (6) so that the annular sheet (3) is stacked vertically and enclosed to form the air chamber (4).

4. The air spring according to claim 3, characterized in that, The edge-mounted adhesive area (5) includes the inner edge and outer edge of the annular sheet (3), and adjacent annular sheets (3) are connected and enclosed by corresponding inner edges and corresponding outer edges to form the air chamber (4); or, the center-mounted adhesive area (6) is disposed between the outer edge and inner edge of the annular sheet (3), and the corresponding end faces of adjacent air chambers (4) are bonded and fixed by the center-mounted adhesive area (6) so that the air chambers are stacked vertically; or, the annular sheet (3) is square-ring shaped; or, the edge contour of the annular sheet (3) is waist-drum shaped.

5. A gas spring according to claim 3, characterized in that, The annular sheet (3) is circular in shape, with an outer radius of A and an inner radius of B, where 0.25 ≤ B / A ≤ 0.

5.

6. A gas spring according to claim 5, characterized in that, The width of the central adhesion area (6) is C, where 0.3 ≤ C / (AB) ≤ 0.

5.

7. A gas spring according to any one of claims 3-6, characterized in that, The through hole (15) is opened on the central adhesion area (6) where adjacent air chambers (4) are attached; or, there are at least two through holes (15), which are equidistantly distributed along the circumference of the central adhesion area (6).

8. An air cushion, comprising the air spring as described in any one of claims 2-7 and a base for assembling and positioning the air spring, characterized in that, The base includes a base layer (7) and a cover layer (8) stacked on the base layer (7). The base layer (7) and the cover layer (8) enclose a sealed air passage (9). The sealed air passage (9) is connected to the outside through an air tube (10). The airbag spring is placed vertically on the base and connected to the sealed air passage (9) so that the air tube (10) can synchronously adjust the airbag spring through the sealed air passage (9).

9. An air cushion according to claim 8, characterized in that, Connection holes are provided on the cover layer (8), and the airbag spring is adhered to the cover layer (8) through the bottom surface and sealed to the connection hole through the inflation hole (1); or, the cover layer (8) forms the bottom wall of the airbag spring so that the inflation hole (1) is provided on the cover layer (8); or, the base includes multiple rows of equally spaced, long strip-shaped sealed air channels (9), and the airbag springs are equally spaced along the sealed air channels (9) so that the air cushion can be divided into multiple independently adjustable zones.

10. A mattress comprising the air cushion (11) according to any one of claims 8-9, characterized in that, The air cushion (11) has a rim (12) around its outer edge, and the top surface of the air cushion (11) is covered with a comfort layer (13).

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