A bed net and mattress based on waist diameter gradient distribution

Abstract

This utility model relates to the technical field of mattresses, and more particularly to a mattress and a mattress based on a waist diameter gradient distribution. The key technical points include: a central spring support area with a first independent pocket spring; and an edge spring support area surrounding the central spring support area, wherein the edge spring support area has a second independent pocket spring; the elastic modulus is G, the wire diameter is d, the effective number of coils is n, the waist diameter is D, and the spring stiffness is k, satisfying the following formula: ; with other parameters remaining unchanged, the waist diameter D1 of the first independent pocket spring is greater than the waist diameter D2 of the second independent pocket spring, so that the spring stiffness k2 of the second independent pocket spring is greater than the spring stiffness k1 of the first independent pocket spring. This application solves the problems of conventional foam frame support, such as easy aging and deformation of the foam, lack of environmental friendliness, and difficulty in dynamic coordination.

Description

Technical Field

[0001] This utility model relates to the technical field of mattresses, and more particularly to a bed net and mattress based on a waist diameter gradient distribution. Background Technology

[0002] As the core support for human sleep, the comfort, support, and durability of mattresses directly affect the user's sleep quality and physical health. With the improvement of living standards and the enhancement of health awareness, consumers' requirements for mattress performance are increasing, which has driven the continuous development of mattress technology.

[0003] Traditional mattresses primarily use a spring structure as the core support layer, with a high-density foam layer surrounding it. By wrapping the mattress around the high-density foam, the firmness and elasticity of the foam provide edge support. However, current high-elasticity foam materials are prone to aging and deformation, resulting in decreased support performance after long-term use. Furthermore, their flame retardancy and environmental performance are insufficient to meet modern consumer demands.

[0004] In addition, in the application of electric beds, the mattress usually needs to bend under the drive of a flexible bending mechanism. However, there is a dynamic coordination problem between the edge reinforcement structure made of high-density foam and the flexible bending mechanism, which affects the user experience and product life.

[0005] Therefore, a new type of bed net structure is needed that can achieve stable edge support while avoiding problems such as sponge aging, deformation, environmental impact, and difficulty in dynamic coordination, in order to break through the inherent limitations of traditional solutions.

[0006] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0007] This utility model provides a sponge-free, fully spring-supported edge reinforcement solution to solve the problems of sponge frame support in the prior art, such as easy aging and deformation of sponge, lack of environmental protection, and difficulty in dynamic coordination.

[0008] To achieve the above objectives, in a first aspect, this utility model provides a bed net based on waist diameter gradient distribution, employing the following technical solution:

[0009] A bed net based on waist diameter gradient distribution, comprising:

[0010] The central spring support area has a first independent pocket spring;

[0011] And an edge spring support area, which is surrounded by the central spring support area, the edge spring support area having a second independent pocket spring;

[0012] The elastic modulus is G, the wire diameter is d, the effective number of coils is n, the waist diameter is D, and the spring stiffness is k, satisfying the following formula: ;

[0013] With other parameters remaining unchanged, the waist diameter D1 of the first independent pocket spring is greater than the waist diameter D2 of the second independent pocket spring, so that the spring stiffness k2 of the second independent pocket spring is greater than the spring stiffness k1 of the first independent pocket spring.

[0014] Preferably, the value of spring stiffness k2 is more than three times that of spring stiffness k1.

[0015] Preferably, the difference in waist diameter between the first independent spring and the second independent spring is H, where H = D1 - D2, and the value of H is in the range of 2cm ≤ H ≤ 2.5cm.

[0016] Preferably, the waist diameter D is an integer or a half-integer.

[0017] Preferably, the second independent pocket springs within the edge spring support area are arranged in multiple rows.

[0018] Preferably, the second independent pocket spring is arranged in two or three rows.

[0019] Preferably, the first springs used in the central spring support area have the same stiffness k1.

[0020] Preferably, the central spring support area has multiple sequentially arranged partitions, and the spring stiffness k1 of the first independent pocket springs in two adjacent partitions is different.

[0021] Preferably, when the central spring support region has multiple sequentially arranged partitions, the wire diameter d of the first independent pocket spring in two adjacent partitions within the central spring support region is different, while other parameters remain unchanged.

[0022] The elastic stiffness k2 of the second independent pocket spring is greater than the elastic stiffness k1 of the first independent pocket spring with the smallest wire diameter in the middle spring support area.

[0023] Secondly, this utility model provides a mattress with the following technical solution:

[0024] A mattress comprising the aforementioned lumbar diameter-based lumbar diameter gradient distribution bed net.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] This invention provides a bed frame and mattress based on a waist diameter gradient distribution. The second independent pocket spring in the edge spring support area has a higher degree of freedom of movement, allowing the flexible bending mechanism on the electric bed frame to better adapt to dynamic deformation requirements when driving the mattress to bend, achieving dynamic coordination and avoiding problems such as foam aging, deformation, and environmental impact. Based on this, the waist diameter gradient design achieves a difference in stiffness between the central spring support area and the edge spring support area. Specifically, by reducing the waist diameter of the second independent pocket spring, the second independent pocket spring in the edge spring support area can obtain greater spring stiffness. Compared with conventional foam frames, this solution provides better support at the edge of the bed frame, solving the problems of easy foam aging, deformation, environmental unfriendliness, and difficulty in dynamic coordination inherent in conventional foam frame support.

[0027] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the bed net structure based on waist diameter gradient distribution provided in Embodiment 1 of this utility model.

[0030] Figure label:

[0031] 1. Central spring support area; 2. Edge spring support area. Detailed Implementation

[0032] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component that is centrally positioned therein. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be a component that is centrally positioned therein.

[0034] Furthermore, terms such as "long," "short," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of this utility model.

[0035] The following is in conjunction with the appendix Figure 1 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0036] Example 1:

[0037] Please refer to Figure 1 This utility model embodiment provides a bed net based on a waist diameter gradient distribution, including a central spring support region 1 and an edge spring support region 2. The edge spring support region 2 is arranged around the central spring support region 1. The central spring support region 1 has a first independent pocket spring, and the edge spring support region 2 has a second independent pocket spring.

[0038] It is understood that multiple first and second independent pocket springs are provided. The central spring support area 1 is obtained by gluing multiple first independent pocket springs together. Correspondingly, the edge spring support area 2 is obtained by gluing multiple second independent pocket springs together. The central spring support area 1 and the edge spring support area 2 are also fixed to each other by gluing. The specific structure of the independent pocket springs and the specific forming methods of the central spring support area 1 and the edge spring support area 2 will not be elaborated on here.

[0039] Based on this, the central spring support area 1 is formed by multiple independent first pocket springs arranged in a longitudinal and transverse manner, which plays the main role in supporting the human body, while the edge spring support area 2 surrounds the edge area of ​​the bed net in a straight line arrangement, which mainly plays the role of supporting the edge of the bed net, in order to replace the conventional high-density sponge layer.

[0040] Both the first and second independent pocket springs have the following physical parameters: elastic modulus G, wire diameter d, effective number of coils n, waist diameter D, and spring stiffness k. Specifically, the elastic modulus G is the ratio of stress to strain of the spring material within its elastic deformation range, reflecting the material's ability to resist elastic deformation, and is related to the material's composition; the wire diameter d is the diameter of the steel wire used to manufacture the spring; the effective number of coils n is the number of effective working coils that participate in the deformation of the spring; the waist diameter D refers to the minimum inner diameter of the spring, and the size of the waist diameter will affect the spring's elasticity and load-bearing capacity; the spring stiffness k is a key indicator for measuring the spring's ability to resist elastic deformation under stress.

[0041] Furthermore, the above parameters satisfy the following formula: .

[0042] With other parameters remaining unchanged, that is, with the first independent pocket spring and the second independent pocket spring using the same material, the same wire diameter, and the same number of effective coils, the waist diameter D1 of the first independent pocket spring is set to be greater than the waist diameter D2 of the second independent pocket spring. Through the above equation derivation, the spring stiffness K2 of the second independent pocket spring is made to be greater than the spring stiffness k1 of the first independent pocket spring.

[0043] Based on the above solution, the conventional high-density foam structure is replaced by the edge spring support area 2. Since the edge spring support area 2 has multiple second independent pocket springs with gaps between adjacent second independent pocket springs, it is easier for the mattress to bend, better adapt to dynamic deformation needs, achieve dynamic coordination, and avoid problems such as foam aging, deformation, and environmental impact, thus optimizing and improving the user experience. In addition, by reducing the waist diameter D of the second independent pocket springs, the second independent pocket springs in the edge spring support area 2 can obtain greater spring stiffness, thereby increasing the support strength of the mattress edge and making the mattress edge support more stable.

[0044] Furthermore, the value of spring stiffness k2 is more than three times that of spring stiffness K1. It is understandable that when the parameter of spring stiffness k2 is less than three times that of spring stiffness K1, the difference between spring stiffness k1 and k2 may be insufficient, resulting in an unclear gradient distribution of spring stiffness k in the mattress, thus failing to meet the edge support requirements. Therefore, when the value of spring stiffness k2 is more than three times that of spring stiffness K1, it provides good support and meets the edge support requirements of the mattress.

[0045] For example, the value of spring stiffness k2 can be three, four, five, or six times the value of spring stiffness k1, etc. There is no limitation on the specific multiple between the two. In this embodiment, the value of spring stiffness k2 is about three times the value of spring stiffness k1.

[0046] Based on this, in order to make k2 more than three times k1, the difference in waist diameter between the first independent pocket spring and the second independent pocket spring is set to H, where H = D1 - D2, and the value range of H is: 2cm ≤ H ≤ 2.5cm.

[0047] According to the formula for calculating spring stiffness k, when other parameters remain unchanged and only the waist diameter D is reduced, when H meets the above value range, the stiffness k2 of the edge spring support area 2 will be 3 times or more than the stiffness k1 of the middle spring support area 1. The stiffness difference meets the requirements of edge support.

[0048] For example, the specific parameters of H can be 2cm, 2.1cm, 2.2cm, 2.3cm, 2.4cm or 2.5cm. The specific value of H can be adjusted according to the actual design value, and no specific restrictions are imposed here.

[0049] As an example, the waist diameter D1 of the first independent pocket spring can be in the range of 3cm ≤ D1 ≤ 6.5cm. This range represents common waist diameter dimensions for independent pocket springs. For instance, the waist diameter D1 can specifically adopt the following parameter values: 3.1cm, 3.2cm, 3.3cm, 3.4cm, 3.5cm, 3.6cm, 3.7cm, 3.8cm, 3.9cm, 4.0cm, 4.1cm, 4.2cm, 4.3cm, 4.4cm. The following diameters are available: 4.5cm, 4.6cm, 4.7cm, 4.8cm, 4.9cm, 5.0cm, 5.1cm, 5.2cm, 5.3cm, 5.4cm, 5.5cm, 5.6cm, 5.7cm, 5.8cm, 5.9cm, 6.0cm, 6.1cm, 6.2cm, 6.3cm, 6.4cm, and 6.5cm. The waist diameter D1 of the first independent pocket spring can be selected according to the actual setting requirements, and no specific restrictions are imposed here.

[0050] Accordingly, the range of values ​​for the waist diameter D2 of the second independent spring can be further derived. As an example, when the waist diameter D1 of the first independent spring is 6.5cm, the value of the waist diameter D2 of the second independent spring can be derived from the formula of H above, which is 4cm to 4.5cm.

[0051] Furthermore, if the waist diameter D is an integer or a half-integer, the manufacturing process parameters, such as the spring's production and assembly dimensions, can be better controlled. It's understandable that a half-integer is a number in mathematics that resembles an integer plus 1 / 2, represented as Z + 1 / 2 (where Z is the set of integers). Typical examples include ±3.5, ±4.5, etc., characterized by a denominator of 2 and an odd numerator. Additionally, a certain width is usually reserved at the edge of the mattress to ensure the edge spring support area 2 has adequate support. This width is typically around 8cm-14cm. For example, the edge spring support area 2 of a standard 1.8-meter wide mattress is 8cm wide. For mattresses 2 meters or wider, the width of the edge spring support area 2 may gradually reach 14cm. If the width of the edge spring support area 2 is less than 8cm, it may cause the edge spring support area 2 to tilt and collapse, affecting the mattress's edge support effect.

[0052] Based on this, the second independent pocket springs in the edge spring support area 2 are arranged in multiple rows. By setting multiple rows of second independent pocket springs, on the one hand, the overall width of the edge spring support area 2 can be widened to obtain a larger support area; on the other hand, it can also achieve multi-layer and multi-point support, so that the edge spring support area 2 can optimize and improve the edge reinforcement effect of the mattress.

[0053] Furthermore, the second independent pocket springs are arranged in two or three rows. It is understandable that when the number of rows of the second independent pocket springs is less than two, it cannot effectively widen the edge spring support area 2. Conversely, when the number of rows is greater than three, it may reduce the area ratio of the central spring support area 1 relative to the entire mattress, affecting the mattress's user experience. Therefore, by arranging the second independent pocket springs in two or three rows, a suitable support width area is achieved, while also meeting the requirement for the central spring support area 1's area relative to the entire mattress, thus optimizing and improving the mattress's user experience.

[0054] Based on this, the value range of the waist diameter D2 of the second independent pocket spring is set to: 4cm≤D2≤4.5cm. It is understandable that when the waist diameter D2 is less than 4cm, the second independent pocket spring, when set in two rows, may not meet the width parameter requirements of the edge spring support area 2. Conversely, when the waist diameter D2 is greater than 4.5cm, the width of the edge spring support area 2 will be too large. Therefore, by further limiting the value range of the waist diameter D2 of the second independent pocket spring to: 4cm≤D2≤4.5cm, a bed net structure with good edge support effect and a large area proportion of the central spring support area 1 can be obtained.

[0055] For example, the waist diameter D2 of the second independent pocket spring can be 4cm, 4.1cm, 4.2cm, 4.3cm, 4.4cm, 4.5cm, etc., and the waist diameter D1 of the first independent pocket spring can be selected according to the actual setting requirements, without specific restrictions here.

[0056] Optionally, there are multiple ways to set the central spring support area 1. In one embodiment, the stiffness K1 of the first spring used in the central spring support area 1 is the same, which is equivalent to the first spring in the entire central spring support area 1 using the same size specification. At this time, the support received by the user at each position in the central spring support area 1 is consistent.

[0057] Alternatively, in another embodiment, the central spring support region 1 has multiple sequentially arranged partitions, and the spring stiffness K1 of the first independent pocket springs of two adjacent partitions is different.

[0058] Based on the above settings, the number of zones can be two, three, five, or seven, and multiple zones can be arranged along the length or width of the mattress. In this case, since the spring stiffness K1 of the first independent pocket springs of two adjacent zones is different, the user can experience different support forces from different zones when lying on the mattress, so that the mattress can support different weight parts of the human body accordingly.

[0059] At this point, by changing the combination and configuration of the spring stiffness K of each zone, the mattress is made more ergonomic, and the user experience is optimized and improved. There are no restrictions on the setting of the central spring support area 1. Whether the central spring support area 1 adopts a zoned or non-zoned scheme, it should be included in the scope of this scheme.

[0060] Furthermore, when the central spring support region 1 has multiple sequentially arranged partitions, with other parameters remaining unchanged, the wire diameter d of the first independent pocket spring in two adjacent partitions within the central spring support region 1 is different. At this time, according to the stiffness formula mentioned above, it can be known that by changing the wire diameter d of the first spring, different spring stiffness K can be obtained in different partitions.

[0061] Based on this, to meet the edge support requirements of the mattress, the elastic stiffness K2 of the second independent pocket spring is greater than the elastic stiffness K1 of the first independent pocket spring with the smallest wire diameter in the central spring support area 1. At this time, because the elastic stiffness K2 of the second independent pocket spring is greater than the elastic stiffness K1 of the first independent pocket spring with the smallest wire diameter, it is not easy to collapse, and the structural support strength is well guaranteed.

[0062] It should be explained that this solution further highlights the functional effect. In other embodiments, it is usually attempted to set a spring with a larger wire diameter in the edge spring support area 2. However, in this embodiment, the stiffness k of the spring can also be increased by reducing the waist diameter D. However, when the stiffness k is not much different, the amount of steel used can be saved by reducing the waist diameter D, thus having a significant cost advantage.

[0063] Specifically, the diameter of the first spring waist in the central spring support area 1 is selected as D1 = 6.5cm, and the wire diameter is d1 = 1.8mm. Based on this, there are two options for the edge spring support area 2:

[0064] Comparative Example 1: The second spring is a spring with a larger wire diameter. Let the waist diameter of the second spring be D21 = 6.5cm and the wire diameter be d21 = 2.2mm.

[0065] Comparative Example 2: The second spring with a smaller waist diameter D22 is used in this scheme. Let the spring waist diameter D22 = 5.0cm and the steel wire diameter d22 = 1.8mm.

[0066] According to the spring stiffness formula, G is the shear modulus (negligible if the material is the same), d is the wire diameter, D is the spring waist diameter, and n is the number of effective coils. Since n is the same for the three types of springs mentioned above, only the following comparison is needed. The value can be used to determine the stiffness order.

[0067] After calculation:

[0068] The central spring-supported area 1 ≈ 3.823 × 10 -5

[0069] Comparative Example 1 ≈ 8.53 × 10 -5

[0070] Comparative Example 2 ≈ 8.398 × 10 -5

[0071] The data shows that the stiffness of the central spring support area 1 is the smallest. The stiffness coefficient difference between the first and second comparative examples of the edge spring support area 2 is only 1.6%, which is a very small difference. Therefore, it can be seen that the stiffness of the two schemes is very small.

[0072] Based on this, we further compare the steel costs. First, we clarify the steel volume of a single spring, the unfolded length of the steel wire of a single spring L=π·n·D, and the cross-sectional area of ​​the circular steel wire A=πd. 2 / 4, therefore the volume of steel for a single spring is v = (π / 4) 2 d 2 Dn) / 4.

[0073] The cost of steel is mainly determined by the volume of the spring material. The bed frame is 198cm long and 178cm wide. The central spring support area 1 is 182cm long and 162cm wide. The area of ​​the edge spring support area 2 is (198x178)-(162x182)=5760cm=576000mm².

[0074] The spring assembly uses either Comparative Example 1 or Comparative Example 2. The number of second springs in Comparative Example 1 is approximately N1 = 576000 / D212 ≈ 136, and the number of second springs in Comparative Example 2 is approximately N2 = 576000 / D222 ≈ 230.

[0075] The total steel volume of the springs in the entire edge region is the steel volume of a single spring multiplied by the number of springs. Since the effective number of coils n is the same, the total steel volume of Comparative Example 1 and Comparative Example 2 only needs to be compared by d. 2 The product of D and the quantity.

[0076] At this point, in Comparative Example 1: d 2 DxN1 = 136 x 2.22 x 65 = 42786, Scheme 2: d 2 DxN2=230x1.82x50=37260, which shows that the amount of steel used in Comparative Example 1 is greater than that in Comparative Example 2, saving more than 10% of steel, which is a significant effect. The cost of using the second spring in the middle spring support area 1, which is from Comparative Example 2 (1.8mm wire diameter, 5.0cm waist diameter), is even lower.

[0077] The bed net based on waist diameter gradient distribution provided in this application has the following beneficial effects:

[0078] 1. Edge support is strengthened, and the spring stiffness in the edge area is increased. Compared with the traditional sponge reinforcement method, it can improve the dynamic adaptability in the electric bed scenario.

[0079] 2. Production and environmental advantages: Reduces the use of sponges and improves environmental friendliness.

[0080] 3. Compared to the solution of using springs with a large wire diameter d around the perimeter, this solution can save steel consumption by reducing the waist diameter D, while maintaining a similar stiffness.

[0081] Example 2:

[0082] Based on Embodiment 1, features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here. This embodiment provides a mattress, including the bed net based on waist diameter gradient distribution of Embodiment 1, and finally obtains a mattress structure with good edge support effect and improved dynamic adaptability in electric bed scenarios.

[0083] Therefore, the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bed net based on waist diameter gradient distribution, characterized in that, include: The central spring support area (1) has a first independent pocket spring; And an edge spring support area (2), which is wrapped around the central spring support area (1), the edge spring support area (2) having a second independent pocket spring; The elastic modulus is G, the wire diameter is d, the effective number of coils is n, the waist diameter is D, the spring stiffness is k, and the following formula is satisfied: ; With other parameters remaining unchanged, the waist diameter D1 of the first independent pocket spring is greater than the waist diameter D2 of the second independent pocket spring, so that the spring stiffness k2 of the second independent pocket spring is greater than the spring stiffness k1 of the first independent pocket spring.

2. The bed net based on waist diameter gradient distribution according to claim 1, characterized in that, The value of spring stiffness k2 is more than three times that of spring stiffness k1.

3. The bed net based on waist diameter gradient distribution according to claim 2, characterized in that, The difference in waist diameter between the first independent spring and the second independent spring is H, where H = D1 - D2, and the range of H is: 2cm ≤ H ≤ 2.5cm.

4. The bed net based on waist diameter gradient distribution according to any one of claims 1, characterized in that, The waist diameter D is an integer or a half-integer.

5. The bed net based on waist diameter gradient distribution according to any one of claims 1-4, characterized in that, The second independent pocket springs within the edge spring support area (2) are arranged in multiple rows.

6. The bed net based on waist diameter gradient distribution according to claim 5, characterized in that, The second independent pocket spring is arranged in two or three rows.

7. The bed net based on waist diameter gradient distribution according to claim 1, characterized in that: The stiffness k1 of the first spring used in the central spring support area (1) is the same.

8. The bed net based on waist diameter gradient distribution according to claim 1, characterized in that: The central spring support area (1) has multiple sequentially arranged partitions, and the spring stiffness k1 of the first independent pocket springs in two adjacent partitions is different.

9. The bed net based on waist diameter gradient distribution according to claim 8, characterized in that: When the central spring support region (1) has multiple sequentially arranged partitions, the wire diameter d of the first independent pocket spring in two adjacent partitions within the central spring support region (1) is different, while other parameters remain unchanged. The elastic stiffness k2 of the second independent pocket spring is greater than the elastic stiffness k1 of the first independent pocket spring with the smallest wire diameter in the middle spring support area (1).

10. A mattress, characterized in that, Includes the bed net based on waist diameter gradient distribution as described in any one of claims 1-9.

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