A polyurethane composite anti-edge collapse mattress

Abstract

The utility model relates to a kind of polyurethane composite anti-collapsing mattress, belong to polyurethane mattress technical field, including polyurethane mattress matrix, elastic limiting strip, V-shaped limiting strip and anti-collapsing assembly;Polyurethane mattress matrix is internally provided with installation cavity;Elastic limiting strip includes horizontal limiting strip and longitudinal limiting strip, horizontal limiting strip is installed in the length direction of installation cavity, and longitudinal limiting strip is installed in linear array between horizontal limiting strip;V-shaped limiting strip is installed between horizontal limiting strip, spring group adopts double spring layout, and the high elasticity limit of spring and the stiffness superposition effect of double spring, improve the edge compression strength;Meanwhile, spring group outside is equipped with integrally-formed silica gel limiting sleeve, can accurately limit the lateral deviation of spring under pressure, avoid supporting dislocation;Glass fibre reinforced PA66 plastic plate as connecting plate, the supporting force of double spring can be evenly dispersed to upper structure, avoid single spring overload, further improve the edge support stability.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane mattress technology, and in particular to a polyurethane composite anti-collapse mattress. Background Technology

[0002] Polyurethane mattresses are products made with polyurethane foam as the core supporting material, through molding, composite splicing, and other processes, combining comfort and support. Polyurethane foam can adjust its deformation according to the body's weight distribution, conforming to the physiological curve of the spine, reducing pressure points (such as the shoulders and hips), and improving sleep comfort.

[0003] For example, announcement number CN219762943U describes a polyurethane composite anti-collapse edge mattress, which includes a polyurethane mattress base and an anti-collapse filling component. The anti-collapse filling component is embedded in the polyurethane mattress base and includes springs, transverse limiting strips, and longitudinal limiting strips. The springs are distributed in two rows on both sides of the polyurethane mattress base, and each spring surface is provided with an elastic sheath. An elastic cover is provided on the top of each elastic sheath. The transverse limiting strip is positioned between two adjacent elastic covers along the length of the polyurethane mattress base, and the longitudinal limiting strip is positioned between two adjacent elastic covers along the width of the polyurethane mattress base. This polyurethane composite anti-collapse edge mattress improves the support of the two sides of the polyurethane mattress base, reducing the problem of collapse under concentrated pressure.

[0004] Common polyurethane composite anti-collapse mattresses typically use a single-spring layout without a top force transmission structure. The pressure borne by a single spring cannot be effectively distributed to the surrounding area, and long-term use can easily lead to a decrease in support strength due to spring fatigue. At the same time, with only horizontal and vertical limiting strips, it is difficult to form a three-dimensional stable support when facing localized concentrated force, and the grid structure is prone to deformation, failing to effectively distribute pressure. Utility Model Content

[0005] To overcome the technical defects of the existing technology, this utility model provides a polyurethane composite anti-collapse mattress, which can improve the anti-collapse performance.

[0006] The technical solution adopted in this utility model includes a polyurethane mattress base, an elastic limiting strip, a V-shaped limiting strip, and an anti-collapse edge component. The polyurethane mattress matrix has an installation cavity inside; The elastic limiting strip includes a lateral limiting strip and a longitudinal limiting strip. The lateral limiting strip is installed along the length of the mounting cavity, and the longitudinal limiting strip is installed in a linear array between the lateral limiting strips. The V-shaped limiting strips are symmetrically installed in a linear array between the transverse limiting strips; The anti-collapse edge component includes: Springs are symmetrically distributed on both sides of the polyurethane mattress base. An integrally molded silicone limiting sleeve is fitted on the outside of the springs. A latex buffer layer is provided at the upper inside of the silicone limiting sleeve to absorb the rigid impact of the springs. A connecting plate is fixedly installed on the upper end of the spring assembly. The connecting plate is a glass fiber reinforced PA66 plastic plate.

[0007] Preferably, in order to improve the performance of the elastic limiting strip and the V-shaped limiting strip, both the elastic limiting strip and the V-shaped limiting strip are made of high-elastic polyester material.

[0008] Preferably, in order to improve support performance, one end of the V-shaped limiting strip is fixedly connected to the longitudinal limiting strip.

[0009] Preferably, in order to absorb the rigid impact of the spring assembly, the thickness of the latex buffer layer is 10 mm.

[0010] Preferably, in order to improve the support performance of the spring group, the spring group is provided in 6 groups, and each group of springs includes 2 springs arranged in parallel.

[0011] Preferably, in order to improve the service life of the spring assembly, the springs in the spring assembly are made of 65Mn spring steel.

[0012] Preferably, the thickness of the connecting plate is 3-4 mm for connecting the spring assembly.

[0013] Preferably, in order to significantly reduce local pressure, a honeycomb-shaped sponge with a thickness of 20mm is fixedly installed on the upper end of the silicone limiting sleeve to increase the force-bearing area of ​​human contact.

[0014] The beneficial effects of this utility model are as follows: 1. The spring assembly adopts a layout of 6 sets of double springs. The high elastic limit of 65Mn spring steel and the superposition effect of the stiffness of the double springs enhance the edge compressive strength. At the same time, an integrally molded silicone limiting sleeve is fitted on the outside of the spring assembly, which can accurately limit the lateral displacement of the spring when it is compressed, and avoid support misalignment. The glass fiber reinforced PA66 plastic plate is used as a connecting plate, which can evenly distribute the supporting force of the double springs to the upper structure, avoid overload of a single spring, and further improve the stability of the edge support.

[0015] 2. The horizontal limiting strip, the vertical limiting strip, and the V-shaped limiting strip form a triangular stable structure, which improves the resistance to lateral deformation, effectively disperses local concentrated forces, avoids deformation of the limiting structure due to concentrated forces, and strengthens the overall support rigidity of the mattress. Attached Figure Description

[0016] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the connection structure between the elastic limiting strip and the V-shaped limiting strip of this utility model.

[0018] Figure 3 This is a schematic diagram of the honeycomb sponge structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the anti-collapse edge component structure of this utility model.

[0020] Explanation of reference numerals in the attached figures: 1. Polyurethane mattress base; 2. Elastic limiting strip; 3. V-shaped limiting strip; 4. Anti-collapse edge assembly; 401. Spring assembly; 402. Silicone limiting sleeve; 403. Latex cushioning layer; 404. Connecting plate; 5. Lateral limiting strip; 6. Longitudinal limiting strip; 7. Honeycomb sponge. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] like Figures 1-4 As shown, this embodiment provides a polyurethane composite anti-collapse edge mattress, including a polyurethane mattress base 1, an elastic limiting strip 2, a V-shaped limiting strip 3, and an anti-collapse edge component 4; The polyurethane mattress base 1 has an installation cavity inside; The elastic limiting strip 2 includes a transverse limiting strip 5 and a longitudinal limiting strip 6. The transverse limiting strip 5 is installed along the length of the mounting cavity, and the longitudinal limiting strip 6 is installed in a linear array between the transverse limiting strips 5. The V-shaped limiting strips 3 are symmetrically installed in a linear array between the transverse limiting strips 5. Both the elastic limiting strips 2 and the V-shaped limiting strips 3 are made of high-elastic polyester material. One end of the V-shaped limiting strip 3 is fixedly connected to the longitudinal limiting strip 6. like Figure 3 and Figure 4 As shown, the anti-collapse component 4 includes: Spring groups 401 are symmetrically distributed on both sides of the polyurethane mattress base 1. An integrally molded silicone limiting sleeve 402 is fitted on the outer side of the spring group 401. A latex buffer layer 403 is provided at the upper end of the inner side of the silicone limiting sleeve 402 to absorb the rigid impact of the spring group 401. The thickness of the latex buffer layer 403 is 10mm. There are 6 spring groups 401, and each spring group includes 2 parallel springs. The springs in the spring group 401 are made of 65Mn spring steel. The connecting plate 404 is fixedly installed on the upper end of the spring assembly 401. The connecting plate 404 is a glass fiber reinforced PA66 plastic plate with a thickness of 3-4mm. A honeycomb sponge 7 with a thickness of 20mm is fixedly installed on the upper end of the silicone limiting sleeve 402 to increase the force-bearing area of ​​human contact.

[0023] Working principle: When a person sits or lies on the edge of the mattress, the pressure is first absorbed by the honeycomb-shaped sponge 7 fixed at the upper end of the silicone limiting sleeve 402. The porous hexagonal structure of the honeycomb-shaped sponge 7 (open area ≥80%) has natural pressure dispersion characteristics. When the human body comes into contact with it, the local pressure is transmitted to multiple surrounding pore units through the side walls of the honeycomb pores, transforming the pressure that was originally concentrated at a point or line into a surface-distributed pressure, expanding the force-bearing area of ​​the edge area, and directly reducing the local pressure of the human body in contact with the mattress. The 20mm thickness design not only ensures the soft touch of the sponge and avoids discomfort caused by the human body directly contacting the hard structure, but also initially buffers the pressure through the elastic deformation of the sponge itself, providing a flexible transition for subsequent rigid support.

[0024] The pressure initially dispersed by the honeycomb sponge 7 is vertically transmitted to the anti-collapse edge component 4 below. The latex buffer layer 403 provides a flexible transition: the pressure first acts on the latex buffer layer 403 at the upper end of the silicone limiting sleeve 402. The high elasticity and resilience of the latex quickly absorb the rigid impact components in the pressure, preventing the impact force from being directly transmitted to the spring assembly 401 and causing a harsh supporting feeling. Simultaneously, the deformation of the latex further diffuses the pressure horizontally, ensuring the pressure evenly covers the upper surface of the spring assembly 401, laying a uniform force foundation for subsequent spring support. The buffered pressure is then transmitted to the spring assembly 401, which consists of 6 sets of double springs. The 65Mn spring steel has a high elastic limit and excellent fatigue resistance. The "stiffness superposition effect" of the spring provides strong vertical support force to resist excessive compression of the spring caused by pressure. At the same time, the one-piece molded silicone limiting sleeve 402 sleeved on the outside of the spring assembly 401 restricts the lateral displacement of the spring when it is compressed, avoids the displacement of the support point caused by the lateral misalignment of the spring, and ensures that the support force always acts on the edge area that needs to be prevented from collapsing. The support force of the spring assembly 401 is evenly distributed twice through the glass fiber reinforced PA66 plastic plate fixed at the upper end. The connecting plate 404 has both high rigidity and lightweight characteristics, which can convert the two-point support force transmitted by the two springs into a planar support force, and evenly transmit it to the upper latex buffer layer 403 and honeycomb sponge 7, avoiding elastic fatigue of a single spring due to overload.

[0025] During pressure transmission and support, the three-dimensional limiting system composed of elastic limiting strip 2 and V-shaped limiting strip 3 provides all-round constraint on the internal structure of the mattress, ensuring that the overall structure does not deform, enhancing the anti-collapse effect and overall support stability. The transverse limiting strip 5 and longitudinal limiting strip 6 first form a planar grid structure, which can constrain the transverse and longitudinal deformation inside the polyurethane mattress matrix 1. When the edge or center of the mattress is subjected to force, the grid structure will absorb part of the deformation force through its own elastic stretching, avoiding overall deformation of the matrix due to local stress. The V-shaped limiting strip 3, symmetrically distributed between the transverse limiting strip 5, forms a triangular stability system with the basic grid structure. The geometric stability of the triangle can convert the transverse and longitudinal deformation forces into the tension of the elastic limiting strip 2, improving the resistance to transverse deformation. Both the elastic limiting strip 2 and the V-shaped limiting strip 3 are made of high-elastic polyester material. Its excellent elastic recovery ensures that the limiting system quickly returns to its original shape after being subjected to force, avoiding the elastic decay of the limiting strips due to long-term use, and always providing stable structural constraints for the mattress, further enhancing the long-term effectiveness of the anti-collapse effect.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A polyurethane composite anti-collapse mattress, characterized in that: It includes a polyurethane mattress base (1), an elastic limiting strip (2), a V-shaped limiting strip (3), and an anti-collapse edge component (4). The polyurethane mattress substrate (1) has an installation cavity inside; The elastic limiting strip (2) includes a transverse limiting strip (5) and a longitudinal limiting strip (6). The transverse limiting strip (5) is installed in the length direction of the mounting cavity, and the longitudinal limiting strip (6) is installed in a linear array between the transverse limiting strips (5). The V-shaped limiting strips (3) are symmetrically installed in a linear array between the transverse limiting strips (5); The anti-collapse edge component (4) includes: Spring assembly (401) is symmetrically distributed on both sides of the polyurethane mattress base (1). An integrally formed silicone limiting sleeve (402) is fitted on the outer side of the spring assembly (401). A latex buffer layer (403) is provided at the upper end of the silicone limiting sleeve (402) to absorb the rigid impact of the spring assembly (401). A connecting plate (404) is fixedly installed on the upper end of the spring assembly (401), and the connecting plate (404) is a glass fiber reinforced PA66 plastic plate.

2. The polyurethane composite anti-collapse edge mattress according to claim 1, characterized in that: Both the elastic limiting strip (2) and the V-shaped limiting strip (3) are made of high-elastic polyester.

3. The polyurethane composite anti-collapse edge mattress according to claim 1, characterized in that: One end of the V-shaped limiting strip (3) is fixedly connected to the longitudinal limiting strip (6).

4. The polyurethane composite anti-collapse edge mattress according to claim 1, characterized in that: The thickness of the latex buffer layer (403) is 10 mm.

5. The polyurethane composite anti-collapse edge mattress according to claim 1, characterized in that: The spring group (401) is provided in 6 groups, and each group of springs includes 2 springs arranged in parallel.

6. The polyurethane composite anti-collapse edge mattress according to claim 5, characterized in that: The springs in the spring assembly (401) are made of 65Mn spring steel.

7. The polyurethane composite anti-collapse edge mattress according to claim 1, characterized in that: The thickness of the connecting plate (404) is 3-4 mm.

8. The polyurethane composite anti-collapse edge mattress according to claim 1, characterized in that: The upper end of the silicone limiting sleeve (402) is fixedly installed with a honeycomb sponge (7) with a thickness of 20mm, which is used to increase the force-bearing area of ​​human contact.

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