WO2023283899A1

WO2023283899A1 - Mattress structure with high flatness

Info

Publication number: WO2023283899A1
Application number: PCT/CN2021/106616
Authority: WO
Inventors: 邓醒明; 余亮
Original assignee: 深圳市云和床垫有限公司
Priority date: 2021-07-12
Filing date: 2021-07-15
Publication date: 2023-01-19
Also published as: CN113413036A; CN113413036B

Abstract

A mattress structure with a high flatness, the mattress structure comprising a mattress main body (1) and surrounding edges (2) which are continuously arranged along the periphery of the mattress main body (1). A plurality of air bags are arranged inside the mattress main body (1); main air channels (3) communicating with the air bags are arranged at the bottom of each surrounding edge (2); the main air channels (3) are arranged at the bottom or inside of the surrounding edges (2) along the periphery of the mattress main body (1); and when the air bags are inflated by means of the main air channels (3), the main air channels (3) jack up the surrounding edges (2), such that the surrounding edges (2) and the mattress main body (1) achieve a linkage adjustment in a height direction, thereby improving the flatness of the mattress structure.

Description

A mattress structure with high flatness

technical field

The invention relates to the technical field of mattress structures, in particular to a mattress structure with high flatness.

Background technique

Mattress is a necessity of people's life, and the comfort level of mattress will directly affect people's quality of life, and further affect people's health. With the continuous improvement of people's living standards, the pursuit of comfort and man-made disasters is becoming more and more intense. The single stiff or soft structure of the existing Mengsi mattress made of steel spring mattress has gradually been unable to meet the needs of modern people for sleep. comfort requirements. Thus, the airbag-based air mattress came into being. At present, the common inflatable mattress mainly uses the air pump to realize the circular inflation and deflation of each airbag inside the mattress body through the main airway and the auxiliary airway, so that the height of the mattress surface can adapt to different sleeping positions of the human body, thereby improving the quality of the mattress. comfort. However, in the existing mattress structure, since the main air passage is mostly set on the side wall of the bed core body, between the surrounding edge and the bed core body, the positioning effect is poor, and it is easy to be pulled during the inflation and deflation process. , distortion, displacement and other phenomena affect the smoothness of inflation and deflation. Most importantly, in the existing mattress structure, the height of the surround is not adjustable, which means that the height of the surround cannot change with the height of the mattress surface, so that in the process of adjusting the height of the mattress surface In the process, there will be a certain height difference between the edge and the surface of the mattress, which will seriously affect the user experience. In view of this, it is particularly important to develop a mattress structure with high flatness to achieve a high linkage effect between the surround and the mattress surface.

Contents of the invention

In order to overcome the above-mentioned defects, the present invention provides a mattress structure with high flatness, including a mattress body and surrounding edges continuously arranged around the mattress body; a plurality of air bag assemblies are arranged inside the mattress body, The bottom of the surround is provided with a main air channel that communicates with each air bag assembly. When the main airway is inflated, the main airway pushes up the surrounding edge, so that the surrounding edge and the mattress main body realize linkage adjustment in the height direction.

Further, the surrounding edge is also equipped with a limiting structure, which is continuously arranged on the outer side of the surrounding edge and connected with the mattress main body to form a limiting effect on the surrounding edge; the main airway is arranged at Between the bottom of the surrounding edge and the limiting structure.

Further, the limiting structure includes a limiting piece continuously arranged along the surrounding edge, the limiting piece covers the surface of the surrounding edge that is not in contact with the mattress main body, and the opposite two sides of the limiting piece The edge is connected to the mattress main body through the connecting portion, so that the surrounding edge is fixed on the side of the mattress main body.

Further, several hollow structures are provided on the limiting structure.

Further, the mattress body also includes a liner, and the liner includes a plurality of first accommodation grooves for placing the air bag assemblies, and the air bag assemblies located in each first accommodation groove pass through The auxiliary airway communicates with the main airway.

Further, the bushing is also provided with several second accommodation grooves on the side corresponding to the upper surface of the mattress main body, and elastic filling strips are placed in the second accommodation grooves, and the elastic filling strips are used for Increases the softness of the upper surface of the mattress body.

Further, the elastic filling strip is a U-shaped structure, the opening direction of the U-shaped structure is set on the side corresponding to the main airway, and the positions where the two outer sidewalls of the U-shaped structure meet the outer surface of the bottom are respectively provided with slopes, It is used to reduce the deformation protrusion of the mattress body in the height direction.

Further, the bush is provided with several evenly distributed sound-absorbing holes.

Further, the sound-absorbing hole is a polygonal hole or an irregular hole.

Further, the outer sides of each of the air bag components are respectively covered with soft sound-absorbing layers.

In some cases, the surrounding edge includes an elastic body part, and the elastic body part is arranged in a strip shape.

In some other cases, the perimeter includes a perimeter liner and a strip-shaped perimeter airbag group arranged inside the perimeter liner, and the perimeter airbag set is at the height of the perimeter liner. The number of upper layers is at least one layer.

In some cases, it also includes at least one layer of soft sound-absorbing layer, and the soft sound-absorbing layer is arranged on the upper surface of the air bag assembly, the lower surface of the air bag assembly, the upper surface of the elastic filling strip, At least one of the lower surfaces of the elastic filling strip.

Further, the air bag assembly includes an inflatable air bag and a spring set arranged on the upper surface or the lower surface of the inflatable air bag. A soft sound-absorbing layer is also arranged on it, and the soft sound-absorbing layer is arranged on the upper surface of the inflatable air bag, the lower surface of the inflatable air bag, the upper surface of the spring set, and the lower surface of the spring set. at least one of the surfaces.

Compared with the prior art, the beneficial effects of the present invention are as follows:

The invention discloses a mattress structure with high flatness. In the mattress structure, a continuous skirt is arranged around the mattress body, and a main air channel is arranged at the bottom of the skirt so that the skirt can follow the main air channel. Realize high linkage to ensure that the main airway can drive the surrounding edge to rise or fall together during the inflation or deflation process, ensuring that the height of the surrounding edge and the surface of the mattress main body is consistent, thereby eliminating the existence of a gap between the surrounding edge and the surface of the mattress main body The height difference can improve the flatness of the mattress structure and achieve the purpose of improving the user experience effect. Most importantly, by arranging the main airway at the bottom of the enclosure and fixing it with the connecting part in the limiting structure, the position of the main airway is fixed, which effectively prevents the main airway from being damaged during use. Phenomena such as pulling, twisting or shifting are beneficial to ensure the smooth flow of gas inside the main airway. In addition, the mattress structure arranges the U-shaped elastic filling strip on the uppermost layer of the liner, so that the open end of the U-shaped structure is set on the side corresponding to the air bag assembly, so that the two outer walls of the U-shaped structure and the bottom Slopes are provided at the connecting positions to reduce the deformation and protrusion of the mattress structure in the height direction after inflation, and avoid the problem of uneven surface of the bed body caused by large deformation of the mattress body, which has high practical value.

Description of drawings

Fig. 1 is an overall schematic diagram of a high flatness mattress structure in an embodiment.

Fig. 2 is an enlarged view of the surrounding structure and its positional relationship with the main airway in one embodiment.

Fig. 3 is a structural diagram of the surrounding edge in another embodiment.

Fig. 4 is a positional relationship diagram among the mattress main body, surrounding edges, limiting structures and main air passages in an embodiment.

FIG. 5 is an enlarged schematic diagram of the point A in FIG. 4 in an embodiment.

Fig. 6 is a schematic diagram of the positional relationship between the main airway, the auxiliary airway, the air bag assembly and the liner in an embodiment.

FIG. 7 is an enlarged schematic diagram of the location B in FIG. 6 in an embodiment.

Fig. 8 is a schematic structural view of a part of the main body of the mattress in an embodiment.

Fig. 9 is a schematic structural diagram of an elastic filling strip in an embodiment.

Wherein, the reference signs are as follows:

Mattress main body 1 , air bag assembly 11 , elastic filling bar 12 , bushing 13 , first accommodating groove 131 , second accommodating groove 132 , and sound-absorbing hole 133 .

Surround 2, elastic main body part 21, surround air bag group 22, surround bush 23, sponge 24.

Main airway 3, auxiliary airway 31.

Pump body 4.

A limiting structure 5 , a limiting piece 51 , and a connecting portion 52 .

reference sign

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent actual dimensions; for those skilled in the art In other words, it is understandable that some well-known structures and their descriptions may be omitted in the drawings; the same or similar symbols correspond to the same or similar components; Patent limitations.

detailed description

The preferred embodiments of the present invention will be described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

As shown in Figures 1 to 8, this embodiment provides a mattress structure with high flatness, please refer to Figure 1 for details, Figure 1 is an exploded view of the mattress structure principle in an embodiment of the present invention, including the mattress body 1 and the surrounding edge 2 continuously arranged around the mattress main body 1, that is, the surrounding edge 2 forms a square structure for placing the mattress main body 1, and the height of the surrounding edge 2 is consistent with the mattress main body 1. It can be understood that, in some embodiments, if there is no need to provide surrounds around the four sides of the mattress main body, unnecessary surrounds can be omitted according to actual needs.

A plurality of air bag assemblies 11 are arranged in a row inside the mattress main body 1 , and the plurality of air bag assemblies 11 are laid in a single layer or double layers inside the mattress main body 1 . The bottom of the surrounding edge 2 is provided with a main air channel 3 that communicates with each air bag assembly 11. The main air channel 3 is arranged at the bottom or inside of the surrounding edge 2 along the periphery of the mattress main body 1, and the main air channel 3 is inflated in the inflation mechanism. In this state, the surrounding edge 2 is lifted upwards, and the position between the surrounding edge 2 and the main air channel 3 is arranged in cooperation, so that the surrounding edge 2 and the main air channel 3 can realize linkage in the height direction. When the airbag assembly 11 in the mattress main body 1 is inflated through the main air passage 3, the whole mattress main body 1 will be deformed, which is mainly manifested in the increase in height, and the surrounding edge 3 is due to its effect on the mattress. Surrounding and protection of the main body 1, its structure plays a more role in improving stability, so the surrounding edge 2 is usually set as a micro-deformation structure with a smaller deformation than the mattress main body 1 . Through the design of the above structure, the main air channel 3 can skillfully provide compensation for the insufficient deformation of the surrounding edge 2 .

That is, when the height of the main airway 3 increases, the main airway 3 will lift up the surround 2 above it; and when the height of the main airway 3 decreases, the height of the surround 2 will increase with the 3 heights drop together. The height between the surrounding edge 2 and the main air channel 3 is linked, which is beneficial to eliminate the height difference between the surrounding edge 2 and the surface of the mattress main body 1 during the inflation and deflation process, avoiding the phenomenon of bulging on the surface of the mattress main body 1, and thus improving the mattress Surface flatness of the structure.

Wherein, in order to realize air flow introduction, the main air channel 3 is also provided with a fracture structure, and the two ends of the fracture structure communicate with the pump body 4 through the electromagnetic valve. The pump body 4 is fixedly installed on the bottom of the mattress main body 1 , and the pump body 4 is used to supply air to each air bag assembly 11 through the main air channel 3 . Of course, the gas inside the air bag assembly 11 can also be discharged outside through the main air channel 3, and the specific structure is similar to the inflation and deflation structure of the air bag assembly 11 in the prior art, and will not be described in detail here.

In some embodiments, the material selection of the skirt 2 can be various, and it can be a sponge skirt, a spring skirt, an airbag-type skirt and a combination of one or more thereof. Accompanying drawing 2 shows one embodiment of the surrounding edge 2 in the form of an exploded view of the present invention, which is composed of an elastic main body 21 . Specifically, the elastic main part 21 of the surround 2 is a strip-shaped sponge structure, and its hardness can be selected according to the comfort requirements of different mattresses.

In other embodiments, in order to realize the adjustment of the softness and hardness of the surrounding edge 2, the structure of the surrounding edge 2 can also be designed as shown in Figure 3, specifically, the surrounding edge 2 includes a surrounding edge air bag group 22 and a surrounding edge liner twenty three. Surrounding liner 23 can be the elongated tubular hollow structure that elastic structure forms, and is arranged with strip-shaped surrounding air bag group 22 inside it, in order to further adjust the softness and hardness of surrounding rim 2, surround The number of layers of the edge air bag group 22 on the height of the edge 2 is at least one layer. Preferably, the edge bushing 23 can be made of silica gel or leather material.

Preferably, in order to further eliminate the gap between the mattress main body 1 and the surrounding edge 2 arranged around it, the surrounding edge 2 is also equipped with a limiting structure 5 . As shown in Figures 4-5, Figures 4-5 schematically illustrate the relationship between the limiting structure 5, the surrounding edge 2 and the mattress main body 1. The limiting structure 5 is continuously arranged on the outer side of the surrounding edge 2 and is connected with the mattress main body 1 to form a limiting effect on the surrounding edge 2 . The limiting structure 5 mentioned here may refer to a limiting bracket made of elastic material, or a covering layer made of soft material such as leather, which is not limited here. Taking the covering layer made of leather as an example for specific illustration, the upper and lower edges of the covering layer can be connected with the mattress main body 1 by means of bonding, riveting, thread body sewing, zipper or Velcro, etc. The limit and fixation of the surrounding edge 2 is realized, and the gap feeling between the mattress main body 1 and the surrounding edge 2 is completely eliminated. The main air channel 3 is arranged at the bottom of the surrounding edge 2 and is fixedly connected with the limiting structure 5 to realize the linkage effect with the surrounding edge 2 . In other words, the main air passage 3 is arranged between the surrounding edge 2 and the limiting structure 5 , and is fixedly arranged on the inner surface of the limiting structure 5 . Of course, the ways of connecting the main airway 3 and the inner surface of the limiting structure 5 include but not limited to methods such as bonding, riveting, welding or sewing.

In some embodiments, the limiting structure 5 includes a limiting piece 51 arranged continuously along the surrounding edge 2, and the limiting piece 51 is arranged on the side of the surrounding edge 2 opposite to the mattress main body 1, that is, the limiting piece 51 is arranged along the surrounding edge 2. The outer wall of the set is continuous. The bottom edge of the limiting piece 51 is connected with the mattress main body 1 through the connecting portion 52 . The main airway 3 is fixedly arranged with the connecting portion 52 , that is, the main airway 3 is fixedly arranged on the inner surface of the connecting portion 52 , and the two form an integrated structure. In this embodiment, the connecting portion 52 is a zipper structure, and the two sides of the zipper are respectively fixedly connected to the limiting piece 51 and the mattress main body 1 for easy disassembly.

Of course, the top edge of the limiting piece 51 can also be spliced with the mattress main body 1 through another connecting portion 52, and there is no limitation here. In this technical solution, the limiting structure 5 formed by the limiting piece 51 and the connecting portion 52 can be regarded as a "U"-shaped structure, and the "U"-shaped structure matches the surrounding edge 2, and the two sides of the "U"-shaped structure The sides are respectively connected with the mattress main body 1, and then form a strip-shaped groove body for accommodating the surrounding edge 2, and the surrounding edge 2 is inserted inside the strip-shaped groove body to realize position restriction. In this embodiment, both the limiting piece 51 and the connecting portion 52 are made of soft materials (such as leather) or elastic materials, and the two can be spliced or integrally formed, such as welding or Stitching is not specifically limited here.

Preferably, several hollow structures are provided on the limiting structure 5 . Please refer to FIG. 4 for details. The hollow structures mentioned here include but are not limited to strip hollow structures, circular hollow structures, polygonal hollow structures or other irregular hollow structures. Certainly, the strip-shaped gaps formed between the above-mentioned adjacent connecting strips can also be regarded as a hollow structure. The setting of the hollow structure here is mainly to eliminate the noise generated by the pulling and friction of the limiting structure 5 during the inflation and deflation process. For example, the space-limiting structure 5 made of leather is pulled due to the increase in volume during the inflation process, generating noise and the like. The setting of the hollow structure provides a certain deformation space for the limit structure 5, which can effectively overcome the noise of leather pulling during the inflation process.

Regarding the mattress main body 1, please refer to FIGS. 6-8. FIG. It is formed by splicing soft materials, such as leather or elastic rubber, and can also be integrally formed by soft materials. Specifically, please refer to FIG. 7, the bushing 13 includes several first accommodation grooves 131 for placing the airbag assembly 11, the first accommodation grooves 131 mentioned here are equivalent to the space for assembling the airbag, and the airbag respectively placed in the first accommodation groove 131 . And the airbags located in each first accommodation groove 131 communicate with the main airway 3 through the auxiliary airway 31 respectively. In this embodiment, the first accommodating groove 131 is designed as a square accommodating groove, and each square accommodating groove can accommodate at least one airbag inside, and the airbag communicates with the main airway 3 through the auxiliary airway 31 . Wherein, the auxiliary air channel 31 is attached to the side wall of the mattress main body 1 . That is, one end of the auxiliary airway 31 is connected to the airbag, and the other end passes through the gap between the outer sidewall of the mattress main body 1 and the inner sidewall of the surrounding edge 2 and communicates with the main airway 3 .

Preferably, in order to realize the fixing of the position of the auxiliary air passages 31 , the bushing 13 is further provided with a limiting channel at a position corresponding to each auxiliary air passage 31 through which the auxiliary air passages 31 pass. That is, the auxiliary air channel 31 passes through the limiting channel, so as to realize the fixed position between the auxiliary air channel 31 and the bushing 13 . Of course, in some embodiments, in order to further improve the positional stability of the auxiliary air channel 31, a bead can also be provided on the limiting structure 5, so that the auxiliary air channel 31 passes between the bead and the limiting structure 5, thereby realizing the adjustment of the auxiliary air channel 31. Secondary positioning of the airway 31 . In addition, both ends of the bead are respectively fixed to the inner surface of the connecting portion 52 , and the auxiliary air channel 31 passes between the bead and the connecting portion 52 and is connected to the main air channel 3 . It can be seen that the cooperation of the limiting channel and the bead effectively improves the positional stability of the auxiliary airway 31, avoiding the pulling and shifting of the auxiliary airway 31 during the use of the mattress, which affects the normal use of the mattress structure .

In this technical solution, the position limitation of the auxiliary air channel 31 is not limited to the above-mentioned structure, and the auxiliary air channel 31 can also be directly fixed on the inner side of the limiting structure 5 or the surrounding edge 2 by means of bonding, riveting or welding. On the wall, as long as the position limitation of the auxiliary airway 31 can be realized, it can be applied in the technical solution of the present application, and there is no unique limitation.

Please refer to Fig. 7 and Fig. 8, in order to improve the user's sleeping comfort, the liner 13 is also provided with a number of second accommodation grooves 132 on the side corresponding to the upper surface of the mattress main body 1, and the number of second accommodation grooves 132 are in the form of A single layer is laid on the mattress main body 1 . The second accommodating groove 132 is located at the top of the liner 13 , that is, the second accommodating groove 132 is closest to the upper surface of the mattress main body 1 . The elastic filling strip 12 is placed in the second accommodation groove 132, and the elastic filling strip 12 is used to increase the softness of the upper surface of the mattress main body 1, so as to improve the sleeping comfort of the user. The elastic filling strip 12 mentioned here can be a sponge strip or a latex strip or the like.

Preferably, as shown in Figure 9, the elastic filling strip 12 is a U-shaped structure, and the opening direction of the U-shaped structure is set on the side corresponding to the main airway 3, that is, the opening direction of the U-shaped structure is set on the side opposite to the mattress main body. The opposite side of the upper surface of 1. Moreover, the two outer side walls of the U-shaped structure are respectively provided with slope structures at the positions where they meet the outer surface of the bottom, so as to reduce the deformation and protrusion of the mattress main body 1 in the height direction. To put it simply, a groove is provided at the bottom of the elastic filling strip 12, and a slope structure (which can also be regarded as a groove structure) is provided on both sides of the elastic filling strip 12 close to the upper surface, so that the second accommodating The volume of the groove 132 is larger than that of the elastic filling bar 12, thereby providing enough space for the deformation of the mattress body, so as to reduce the deformation and protrusion of the mattress in the height direction after inflation, and further improve the flatness of the surface of the mattress main body 1.

Preferably, the bush 13 is provided with a plurality of evenly distributed sound-absorbing holes 133 , and the several sound-absorbing holes 133 are distributed in an orderly array. The setting of the sound-absorbing hole 133 provides space for the deformation of the bush 13, and eliminates the noise generated by the bush 13 during the inflation process due to pulling. At the same time, the arrangement of the sound-absorbing hole 133 is also beneficial to reducing the use of materials and reducing the production cost of the bushing 13 . In this technical solution, the sound-absorbing hole 133 may be a polygonal hollow or irregular hole, such as a square hole, a circular hole, a hexagonal hole, etc., and there is no exclusive limitation here. Those skilled in the art should be able to imagine that opening a single-structure sound-absorbing hole 133 on the bushing 13 or simultaneously opening multiple-structure sound-absorbing holes 133 on the bushing 13 should be within the scope of protection of this technical solution.

Preferably, the outer sides of each of the air bag components are respectively covered with a soft sound-absorbing layer, and the soft sound-absorbing layer can be made of leather or rubber foam material film. The soft noise-absorbing layer is pasted on the outer surface of the airbag by welding technology or adhesive, which can effectively absorb the noise generated by the airbag during inflation or deflation, so that the airbag can achieve a mute effect without noise, and at the same time, it can also reduce the airbag The friction with the bushing 13 prevents the airbag from being damaged by friction, which is beneficial to prolong the service life of the airbag.

In some other embodiments, the air bag assembly further includes an inflatable air bag and a spring set arranged on the upper surface or the lower surface of the inflatable air bag. The inflatable air bag includes two layers of distribution layer air bag and upper layer air bag. In order to reduce frictional noise, a soft sound-absorbing layer can be arranged between the above-mentioned components, which can be, but not limited to, the upper surface of the elastic filling strip, the lower surface of the elastic filling strip, the upper surface of the inflatable air bag, and the lower surface of the inflatable air bag. at least one of the surface, the upper surface of the spring set, and the lower surface of the spring set.

The embodiment of the present invention provides a mattress structure with high flatness. The mattress structure is provided with a continuous skirt around the mattress body, and the main air passage is arranged at the bottom of the skirt, so that the skirt can follow the main The airway achieves a high degree of linkage to ensure that the main airway can drive the surrounding edge to rise or fall together during the inflation or deflation process, ensuring that the height of the surrounding edge and the surface of the mattress main body is consistent, thereby eliminating the need for the surrounding edge and the mattress body. The height difference existing on the surface improves the flatness of the mattress structure and achieves the purpose of improving the user experience effect. Most importantly, by arranging the main airway at the bottom of the enclosure and fixing it with the connecting part in the limiting structure, the position of the main airway is fixed, which effectively prevents the main airway from being damaged during use. Phenomena such as pulling, twisting or shifting are beneficial to ensure the smooth flow of gas inside the main airway. In addition, the mattress structure arranges U-shaped elastic filling strips on the uppermost layer of the liner, so that the open end of the U-shaped structure is set on the side corresponding to the airbag, and the two outer walls of the U-shaped structure are connected to the bottom. Slopes are set at the positions to reduce the deformation and protrusion of the mattress structure in the height direction after inflation, and avoid the problem of uneven surface of the bed body caused by large deformation of the mattress body, which has high practical value.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

A mattress structure with high flatness is characterized in that it includes a mattress main body and a surrounding edge continuously arranged around the mattress main body; a plurality of air bag assemblies are arranged inside the mattress main body, and the surrounding edge The bottom is provided with a main air channel that communicates with each air bag assembly, and the main air channel is arranged at the bottom or inside of the surrounding edge along the periphery of the mattress body, and the air bag assembly is inflated through the main air channel At this time, the main airway pushes up the surrounding edge, so that the surrounding edge and the mattress main body realize linkage adjustment in the height direction.
A mattress structure with high flatness according to claim 1, characterized in that, the surrounding edge is also equipped with a limiting structure, and the limiting structure is continuously arranged on the outer side of the surrounding edge and connected to the mattress main body , so as to form a limiting effect on the surrounding edge; the main air passage is arranged between the bottom of the surrounding edge and the limiting structure.
A mattress structure with high flatness as claimed in claim 2, characterized in that, the limiting structure comprises limiting pieces arranged continuously along the surrounding edges, and the limiting pieces cover the parts of the surrounding edges that are not connected with the surrounding edges. The surface in contact with the mattress main body, and the opposite two edges of the limiting piece are connected with the mattress main body through the connecting portion, so that the surrounding edge is fixed on the side of the mattress main body.
The mattress structure with high flatness according to claim 2, characterized in that, several hollow structures are formed on the limiting structure.
A mattress structure with high flatness according to claim 1, wherein the mattress body further includes a liner, and the liner includes a plurality of first accommodations for placing the air bag assembly slots, and the air bag assemblies located in the first accommodation slots communicate with the main air passages through the auxiliary air passages respectively.
A mattress structure with high flatness according to claim 5, characterized in that, the bushing is also provided with a number of second accommodation grooves on the side corresponding to the upper surface of the mattress main body, and the second accommodation grooves An elastic filling strip is placed in the slot, and the elastic filling strip is used to increase the softness of the upper surface of the mattress main body.
A mattress structure with high flatness as claimed in claim 6, characterized in that, the elastic filling bar is a U-shaped structure, the opening direction of the U-shaped structure is set on the side corresponding to the main airway, and the U-shaped The two outer walls of the structure are respectively provided with slopes where they meet the outer surface of the bottom, so as to reduce the deformation and protrusion of the mattress body in the height direction.
A mattress structure with high flatness as claimed in claim 5, characterized in that the bushing is provided with a number of evenly distributed sound-absorbing holes.
The mattress structure with high flatness according to claim 8, wherein the sound-absorbing holes are polygonal holes or irregular holes.
The mattress structure with high flatness according to claim 1, characterized in that, the surrounding edge includes an elastic body part, and the elastic body part is arranged in a strip shape.
A mattress structure with high flatness according to claim 1, characterized in that, the surrounding edge includes an edge lining and a strip-shaped air bag group arranged inside the edge lining , the number of layers of the surround airbag group at the height of the surround is at least one layer.
A mattress structure with high flatness according to claim 1, further comprising at least one layer of soft sound-absorbing layer, said soft sound-absorbing layer being arranged on the upper surface of said air bag assembly, said air bag assembly At least one of the lower surface of the bag assembly, the upper surface of the elastic filling strip, and the lower surface of the elastic filling strip.
The mattress structure with high flatness according to claim 1, wherein the air bag assembly comprises an inflatable air bag and a spring set arranged on the upper surface or the lower surface of the inflatable air bag.
A mattress structure with high flatness according to claim 13, further comprising at least one layer of soft sound-absorbing layer, said soft sound-absorbing layer being arranged on the upper surface of said inflatable air bag, said inflatable air bag At least one of the lower surface of the air bag, the upper surface of the spring set, and the lower surface of the spring set.