Bed sheet fixing device for reinforcing installation

Abstract

According to the bed sheet fixing device for reinforced installation, the bed sheet fixing device can be connected with other bed sheet structures which are more stable relative to the bed sheet vertical face layer while being connected with the bed sheet vertical face layer through the connecting structure additionally arranged on the bed sheet vertical face layer, and therefore reinforced installation of the bed sheet fixing device is achieved, and the using process of the bed sheet fixing device is more stable.

Description

Technical Field

[0001] The present disclosure relates to the technical field of mattresses, and more particularly to a sheet fixing device for reinforced installation. Background Art

[0002] The mattress facade layer surrounding the inner core material of the mattress is usually made of soft material, and most of them are made of a cloth surface plus a layer of sponge and a tulle on the back. As part of the surface of the mattress of soft furniture, the mattress facade layer, regardless of its specific material, is generally soft and has no toughness. There is also the mattress facade layer that only cooperates with the mattress surface layer and the mattress bottom layer to cover the inner core material of the mattress. The mattress facade layer itself is not connected to the inner core material of the mattress, so that the pulling force in the middle between the upper and lower parts of the mattress facade layer will be transferred to the upper edge and / or the lower edge of the mattress. The mattress facade layer has poor tolerance to pulling; at the same time, the inner facade of the traditional mattress itself does not have a suitable structure for direct assembly, especially the inner facade of the spring core mattress is uneven, and there is no relatively flat part in the middle between the upper and lower parts that is suitable for assembly and can balance the force in the front and back directions.

[0003] Therefore, when a sheet anchor is required on the mattress's vertical surface, the traditional mattress's internal and external vertical structures make it difficult to achieve a secure and reliable installation and use of the sheet anchor. If the sheet anchor is attached solely to the mattress's vertical surface, then both the force applied to the mattress's vertical surface when the sheet anchor is operated and the force applied to the mattress's vertical surface by the sheet anchor will obviously have a negative impact on the mattress's vertical surface, causing it to loosen and deform. Considering attaching the sheet anchor to the mattress's vertical surface while also connecting it to the mattress's internal core material is an option. However, as mentioned above, the traditional mattress's internal core material itself does not have a compatible mounting structure for the sheet anchor. Utility Model Content

[0004] The present disclosure provides a reinforced sheet fixing device. The sheet fixing device can be connected to other mattress structures that are more stable relative to the mattress facade layer while being assembled with the mattress facade layer by adding a connecting structure to the mattress facade layer, thereby achieving reinforced installation of the sheet fixing device and making its use more stable.

[0005] In a first aspect, a reinforced sheet fixing device is provided, which includes a sheet fixing device and a connecting belt. The sheet fixing device is installed on the vertical surface of the mattress, the connecting belt is located behind the vertical surface layer of the mattress, the internal core material of the mattress includes a lower frame bar, the connecting belt is connected to the lower frame bar, and the sheet fixing device is connected to the vertical surface layer and the connecting belt.

[0006] In the solution shown in the present disclosure, the lower frame bar of the inner core material of the mattress is more stable relative to the vertical layer of the mattress, the mounting belt connects the lower frame bar, and the sheet fastener is mounted on the vertical layer of the mattress and the mounting belt, so that the force generated by using the sheet fastener can be transferred to the lower frame bar through the mounting belt.

[0007] In some possible implementations, the attachment belt is connected to the lower frame strip via a clamp, the clamp having two clamping portions, the lower portion of the attachment belt is folded around an adjacent portion of the lower frame strip to form a double-layered attachment belt portion, and the two clamping portions cooperate to clamp the double-layered attachment belt portion;

[0008] Alternatively, the attachment belt is connected to the lower frame strip via a clamp, the clamp having two clamping parts, two adjacent sides of the two clamping parts having an inter-clamping connecting part, the inter-clamping connecting part being at least partially located under a portion adjacent to the lower frame strip, and the two clamping parts cooperate to clamp the attachment belt;

[0009] Alternatively, the tail of the attachment belt is provided with at least one of a tail connection hole and a tail horizontal bar, and the tail connection hole is one of a plastic eyelet, a curled edge eyelet, and a metal eyelet, and the attachment belt is connected to the lower frame bar through at least one of the tail connection hole and the tail horizontal bar.

[0010] In some possible implementations, a buckling structure is provided between the two clamping parts, and the two clamping parts are buckled together by the buckling structure to clamp the attachment belt;

[0011] Alternatively, a buckle joint and a buckle hole are provided at the lower portion of the attachment strap, the buckle hole being the strap tail connecting hole, the buckle joint and the buckle hole being separated in the length direction of the attachment strap, the portion of the attachment strap between the buckle joint and the buckle hole being folded around the portion of the adjacent lower frame strip, the portion of the attachment strap between the buckle joint and the buckle hole being partially located under the portion of the adjacent lower frame strip, the buckle joint corresponding to the buckle hole and being buckled;

[0012] Alternatively, the tail of the attachment belt is provided with the tail connection hole and the tail cross bar, the tail cross bar is closer to the tail of the attachment belt relative to the tail connection hole, and the attachment belt is connected to the lower frame bar through the tail connection hole and the tail cross bar.

[0013] In a second aspect, a reinforced sheet fixing device includes a sheet fixing device and a connecting belt, wherein the sheet fixing device is installed on the vertical surface of the mattress;

[0014] The mattress comprises a vertical layer, a bottom layer, and a lower edge band, the attachment band is located at one of an inner layer of the vertical layer and a rear side of the vertical layer, the lower edge band wraps around the lower edge of the vertical layer, the lower end of the attachment band, and the edge of the bottom layer and sews these four together, and the sheet fastener is attached to the vertical layer and the attachment band;

[0015] Alternatively, the mattress includes a vertical layer, a bottom layer, and a lower edge band, the attachment band is located in front of the vertical layer, the left and right sides of the attachment band are sewn to the vertical layer, the lower edge band wraps around the lower end of the attachment band, the lower edge of the vertical layer, and the edge of the bottom layer and sews these four together, and the sheet fastener is attached to the vertical layer and the attachment band;

[0016] Alternatively, the mattress includes a vertical layer and a bottom layer, the vertical layer and the bottom layer are the same layer, the layer is located under the inner core material of the mattress, namely the bottom layer, and the layer is located outside the vertical surface of the inner core material of the mattress, namely the vertical layer, the attachment belt is located at one of the front side of the layer, the inner layer of the layer, and the back side of the layer, and the attachment belt has parts located at the vertical layer and the bottom layer respectively, the part of the attachment belt located at the bottom layer is sewn to the bottom layer, and the sheet fastener is attached to the vertical layer and the attachment belt.

[0017] In the solution shown in the present disclosure, the bottom layer of the mattress is more stable than the vertical layer of the mattress. The mounting belt is sewn to the bottom layer, and the sheet fastener is attached to the vertical layer of the mattress and the mounting belt. Therefore, the force generated by using the sheet fastener can be transferred to the bottom layer through the mounting belt.

[0018] In some possible implementations, the attachment belt is located behind the facade layer, and the attachment belt is provided with an attachment belt attachment hole, and the bed sheet holder is attached to the facade layer and the attachment belt through the attachment belt attachment hole;

[0019] The attachment belt is made of fabric and has attachment holes, which are ironed holes; or, the attachment belt is entirely made of plastic and has attachment holes; or, the attachment belt is at least partially bonded to the back of the facade layer.

[0020] Thirdly, a reinforced sheet fixing device is provided, which includes a sheet fixing device and a support spring assembly. The inner core material of the mattress includes support springs. The support spring assembly is connected to two support bars of the support springs on the left and right respectively. The sheet fixing device is connected to the vertical surface layer of the mattress and the support spring assembly.

[0021] In the solution disclosed herein, the support springs of the inner core material of the mattress are more stable than the vertical layer of the mattress. Without affecting the upper and lower elastic expansion and contraction performance of the support springs, the left and right sides of the support spring connectors are respectively connected to the two support bars of the support springs. The sheet fastener is attached to the vertical layer of the mattress and the support spring connector. Then, the force generated by the sheet fastener can be transferred to the inner core material of the mattress through the support spring connectors.

[0022] In some possible implementations, the core material includes a lower frame bar, the support spring assembly has a lower connecting portion, the lower connecting portion connects the lower frame bar and the support spring bottom bar of the support spring, the left and right sides of the support spring assembly are loosely connected to the two support bars respectively, and the two support bars can remain elastically stretchable up and down, the support spring assembly is provided with a support spring assembly attachment hole, and the sheet fastener is attached to the facade layer and the support spring assembly through the support spring assembly attachment hole.

[0023] Fourthly, a reinforced sheet fixing device is provided, which includes a sheet fixing device, an inner vertical surface attachment portion of a mattress and two fixed vertical bars. The inner vertical surface attachment portion of the mattress and the two fixed vertical bars are located behind the vertical surface layer of the mattress. The two fixed vertical bars are respectively fixedly connected to the left and right sides of the inner vertical surface attachment portion of the mattress. The two fixed vertical bars are fixedly connected to the internal core material of the mattress. The sheet fixing device is attached to the vertical surface layer and the inner vertical surface attachment portion of the mattress.

[0024] In the solution shown in the present disclosure, the inner core material of the mattress is more stable relative to the vertical layer of the mattress, the inner vertical surface mounting portion of the mattress is fixedly connected to the inner core material of the mattress, and the sheet fastener is mounted to the vertical layer of the mattress and the inner vertical mounting portion of the mattress. Therefore, the force generated by using the sheet fastener can be transferred to the inner core material of the mattress through the inner vertical mounting portion of the mattress.

[0025] In some possible implementations, vertical fixing holes are respectively provided on the left and right sides of the mattress inner vertical surface attachment part, the two vertical fixing bars are fixedly connected to the mattress inner vertical surface attachment part through the two vertical fixing holes, the mattress inner vertical surface attachment part is provided with a mattress inner vertical surface attachment part attachment hole, and the sheet fastener is attached to the vertical surface layer and the mattress inner vertical surface attachment part through the mattress inner vertical surface attachment part attachment hole.

[0026] In some possible implementations, a fixed horizontal bar is fixedly connected between the lower ends of the two fixed vertical bars, the upper ends of the two fixed vertical bars are separated and each has a hook, and the left and right sides of the mattress inner vertical surface attachment portion are respectively provided with a plurality of vertically arranged horizontal connection holes corresponding to the two hooks;

[0027] Alternatively, fixed connecting vertical cylinders are provided on the left and right sides of the inner vertical surface attachment part of the mattress respectively corresponding to the two fixed vertical bars, and the fixed connecting vertical cylinders have vertical fixing holes for the fixed vertical bars to be inserted, and the fixed connecting vertical cylinders have adjustment locking holes running through the cylinder wall, and the fixed vertical bars are fixedly connected to the fixed connecting vertical cylinders by adjusting locking bolts that cooperate with the adjustment locking holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a mounting belt disclosed herein (including a partial enlarged view);

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of the connection between the mounting belt and the lower frame strip and the upper frame strip of the inner core material of the mattress;

[0030] Figure 3 This is a structural schematic diagram of another attachment belt disclosed herein (including a partial enlarged view);

[0031] Figure 4 This is a schematic structural diagram of another embodiment of the present invention in which a connecting belt is connected to a lower frame bar and an upper frame bar of a mattress inner core material;

[0032] Figure 5 This is a schematic structural diagram of another embodiment of the present invention in which a connecting belt is connected to a lower frame bar and an upper frame bar of a mattress inner core material;

[0033] Figure 6 This is a schematic structural diagram of a clamp disclosed herein;

[0034] Figure 7 A schematic structural diagram of a mounting belt and a mattress vertical layer, bottom layer, lower edge band, lower piping strip, surface layer, upper edge band, and upper piping strip disclosed herein;

[0035] Figure 8 This is a schematic diagram of the structural decomposition of a support spring assembly disclosed herein;

[0036] Figure 9 It is a structural schematic diagram of the installation of a support spring assembly disclosed herein with the support springs and lower frame strips of the inner core material of a mattress;

[0037] Figure 10 This is a schematic diagram of the structural decomposition of a pressure-adaptable support member disclosed in the present invention;

[0038] Figure 11 This is a schematic structural diagram of the assembly of a pressure-adapting support member disclosed herein with an upper frame strip and a lower frame strip of the inner core material of a mattress;

[0039] Figure 12 This is a structural schematic diagram of a bed sheet fastener disclosed herein;

[0040] Figure 13 The present invention is a structural schematic diagram of a mattress equipped with a sheet fastener.

[0041] In the picture:

[0042] 1-Attachment belt; 2-Attachment belt attachment portion; 3-Attachment belt attachment hole; 4-Attachment gasket; 5-Attachment belt vent hole; 6-External convex portion of the vent hole; 7-Double-layer attachment belt portion; 8-Transverse ribs; 9-Transverse grooves; 10-Strip holes; 11-Scale; 12-Belt tail connection hole; 13-Belt tail transverse bar; 14-Clamp; 15-Clamp; 16-Connection portion between clamps; 17-Clamp ribs; 18-Buckle joint; 19-Buckle hole; 20-Connecting column; 21-Bump; 22-Support spring; 23-Support bar; 24-Support bar coil; 25-Support spring bottom bar; 26-Support spring attachment 27-Standard spring assembly attachment part; 28-Standard spring assembly attachment hole; 29-Standard spring assembly attachment tube; 30-Standard spring assembly ventilation hole; 31-Back plate; 32-Frame; 33-Space inside the frame; 34-Front enclosure; 35-Left enclosure; 36-Right enclosure; 37-Side insertion hole; 38-Card hole; 39-Bevel edge; 40-Opening; 41-Horizontal connecting hole; 411-Adjusting positioning tube; 42-Supporting part; 43-Reinforced enclosure; 44-Front enclosure; 45-Latch hole; 46-Side enclosure; 47-Fixed latch; 48-Lower connecting part; 49-Lower connecting part vertical bar; 5 0-lower connecting part horizontal bar; 51-bend hook; 52-pressure-adapting support member; 53-support member attachment portion; 54-support member attachment hole; 541-mattress inner surface attachment portion attachment hole; 55-support member attachment cylinder; 56-support member ventilation hole; 57-vertical moving portion; 58-moving part horizontal bar; 59-moving part vertical bar; 60-vertical moving limiter; 61-support member fixing portion; 62-limiting part horizontal bar; 621-fixed horizontal bar; 63-limiting part vertical bar; 631-fixed vertical bar; 64-finishing ring; 65-attachment plate; 651-mattress inner surface attachment portion; 66-fixed connecting vertical cylinder ;67-vertical fixing hole;68-adjusting locking cylinder;69-adjusting locking hole;70-adjusting locking bolt;71-movable limiting vertical cylinder;72-vertical guide hole;73-mattress;74-lower frame strip;75-upper frame strip;76-vertical layer;77-bottom layer;78-lower surrounding edge strip;79-lower piping strip;80-surface layer;81-upper surrounding edge strip;82-upper piping strip;83-sheet fastener;84-sheet fastener mounting hole;85-longitudinal ventilation hole;86-sheet fastener side wall;87-lateral ventilation hole;88-ventilation cylinder;89-self-locking cable tie;90-buckle. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present disclosure more clear, the technical solutions of the present disclosure are further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present disclosure and are not intended to limit them.

[0044] It should be noted that: the "between" in this article can be any position within the overall scope composed of two or more than two, and can be on the body of one of them, including but not limited to the spaced positions between two or more; some specific terms are used in this article, but these terms are only for convenience of explanation and do not constitute any limitation to the present disclosure; there are identical parts or structures in this article, and in order to avoid confusion, the identical parts or structures are numbered and / or distinguished by their respective functions, positions, directions, etc. and are only used for distinction; the directions or positional relationships indicated by "upper", "lower", "left", "right", etc. in this article are based on the directions or positional relationships shown in the drawings, and do not indicate or imply that the structure or object referred to must have a specific direction, be constructed and operated in a specific direction; the "edge" in this article refers to the outermost edge; the "edge" in this article refers to the outermost edge and the part close to the outermost edge, including but not limited to the outermost edge; the "multiple" in this article means three or more.

[0045] Embodiment 1: A reinforced sheet fixing device, comprising a sheet fixing device (83) and a connecting belt (1), wherein the sheet fixing device (83) is installed on the vertical surface of the mattress (73), the connecting belt (1) is located behind the vertical surface layer (76) of the mattress (73), the internal core material of the mattress (73) comprises a lower frame strip (74), the connecting belt (1) is connected to the lower frame strip (74), and the sheet fixing device (83) is connected to the vertical surface layer (76) and the connecting belt (1); the connecting method can be one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection.

[0046] The attachment belt (1) is connected to the lower frame strip (74) through a clamp (14), and the clamp has two clamping parts (15). The lower part of the attachment belt (1) is folded around the adjacent part of the lower frame strip (74) to form a double-layered attachment belt part (1), and the two clamping parts (15) cooperate to clamp the double-layer attachment belt part (7).

[0047] The attachment belt (1) has an attachment belt attachment portion (2), and a plurality of transverse ribs (8) are provided at a portion of the attachment belt (1) other than the attachment belt attachment portion (2), wherein the transverse ribs (8) extend in the width direction of the attachment belt (1), and transverse grooves (9) are provided between all two adjacent transverse ribs (8) in the length direction of the attachment belt (1), and the clamp (14) has two clamping portions (15), and the two clamping portions (15) cooperate to clamp the portion of the attachment belt (1) having the transverse ribs (8) and the transverse grooves (9).

[0048] The attachment belt attachment portion (2) is used for attachment to the bed sheet fastener (83), and the portion of the attachment belt (1) that is attached to the bed sheet fastener (83) is the attachment belt attachment portion (2).

[0049] like Figure 1 、 Figure 2 As shown, the inner core material of the mattress (73) includes a frame strip, and the frame strip is further divided into an upper frame strip (75) and a lower frame strip (74); the portion of the attachment belt (1) below the attachment portion (2) has the plurality of transverse ribs (8) and the transverse grooves (9), and the portion of the attachment belt having the transverse ribs (8) and the transverse grooves (9) is folded around the adjacent portion of the lower frame strip (74) to form a double-layer attachment belt portion (7), and the two clamping portions (15) cooperate to clamp the double-layer attachment belt portion (7), and the transverse ribs (8) and the transverse grooves (9) between the two inner surfaces of the double-layer attachment belt portion (7) are engaged, thereby realizing the connection of the attachment belt (1) to the lower frame strip (74); the cross-section of the plurality of transverse ribs (8) is serrated.

[0050] The attachment belt attachment portion (2) is provided with an attachment belt attachment hole (3); the two clamping portions (15) have an inter-clamping portion connecting portion (16) between two adjacent sides, and the inter-clamping portion connecting portion (16) faces the length direction of the attachment belt (1), and the inter-clamping portion connecting portion (16) is fixedly connected to the two adjacent sides, one of the two clamping portions (15) is provided with a buckle joint (18), and the other of the two clamping portions (15) is provided with a buckle hole (19) corresponding to the buckle joint (18), and the two clamping portions (15) clamp the attachment belt (1) by buckling the buckle joint (18) with the buckle hole (19).

[0051] The bottom of the double-layer attachment belt portion (7) is located below the adjacent lower frame strip (74) portion, the inter-clamp connection portion (16) is at least partially located below the adjacent lower frame strip (74) portion, and the two clamps (15) cooperate to clamp the double-layer attachment belt portion (7).

[0052] The attachment portion (2) of the attachment belt has an attachment gasket (4), and the attachment gasket (4) is fixedly connected to the attachment belt (1) as a whole, and the attachment belt attachment hole (3) is located on the attachment gasket (4); the two ends of the connecting portion (16) between the clamping parts are respectively fixedly connected to the parts of the two adjacent edges, and the buckle joint (18), the connecting portion (16) between the clamping parts, and the buckle hole (19) are aligned; the attachment belt (1) is provided with a strip hole corresponding to the buckle joint (18), and the strip hole (10) extends in the length direction of the attachment belt (1), and the buckle joint (18) passes through the strip hole (10) and is buckled with the buckle hole (19), and the width of the strip hole (10) is greater than or equal to the width of the connecting portion (16) between the clamping parts.

[0053] The connecting portion (16) between the clamping parts can be hard or flexible.

[0054] The buckle joint (18) and the buckle hole (19) can be buckled together within the width direction of the attachment belt (1) through the strip hole (10), so that the two clamping parts (15) can be more tightly clamped to the parts within the width direction of the attachment belt (1). At the same time, the buckle joint (18), the connecting part between the clamping parts (16), and the buckle hole (19) are aligned, and the width of the strip hole (10) is greater than or equal to the width of the connecting part between the clamping parts (16). Therefore, the connecting part between the clamping parts (16) can be at least partially placed in the strip hole (10), thereby reducing the degree of unevenness of the bottom of the adjacent lower frame strip (74).

[0055] In this embodiment, the thickness of the inter-clamp connection portion (16) is less than or equal to the thickness of the portion of the attachment belt (1) having the transverse rib (8), the inter-clamp connection portion (16) is flexible and bendable, and the bottom of the inter-clamp connection portion (16) adjacent to the lower frame strip (74) is located within the strip-shaped hole (10).

[0056] like Figure 1 As shown, the length of the transverse rib (8) is consistent with the width of the attachment belt (1), and the strip holes (10) are respectively provided on the left and right sides of the attachment belt (1) below the attachment portion (2), that is, the strip holes (10) are provided on the left and right sides of the attachment belt (1) where the transverse rib (8) is provided.

[0057] like Figure 2As shown, there are two clamps, and the upper and lower parts of the connecting belt (1) are connected to the upper frame strip (75) and the lower frame strip (74) respectively through the two clamps (14); the connecting belt (1) is provided with a scale (11) in the length direction, and the scale (11) is located on the opposite side of the connecting belt (1) having the transverse rib (8) and between the two strip holes (10).

[0058] The portion of the attachment belt (1) above the attachment portion (2) of the attachment belt also has the plurality of transverse ribs (8) and the transverse grooves (9). The portion of the attachment belt having the transverse ribs (8) and the transverse grooves (9) is folded around the adjacent upper frame strip (75) portion to form a double-layer attachment belt portion (7). The two clamping portions (15) cooperate to clamp the double-layer attachment belt portion (7). The transverse ribs (8) and the transverse grooves (9) between the two inner surfaces of the double-layer attachment belt portion (7) are engaged, thereby realizing the connection of the attachment belt (1) to the upper frame strip (75); the top of the connecting portion (16) between the clamping portions adjacent to the upper frame strip (75) is located in the strip-shaped hole (10).

[0059] like Figure 6 As shown, the buckle joint (18) is fixedly connected to the clamping part (15) through a connecting column (20), the diameter of the buckle joint (18) is larger than the diameter of the connecting column (20), and the buckle joint (18) at the place where the buckle joint (18) and the connecting column (20) are fixedly connected is located outside the edge of the connecting column (20) and acts as a hook; the inner surface of one of the two clamping parts (15) is provided with a protrusion (21), and the inner surface of the other of the two clamping parts (15) is provided with a clamping rib (17), and the clamping rib (17) extends in the length direction of the connecting belt (1), and the protrusion (21) and the clamping rib (17) are staggered with each other, and the protrusion (21) is pointed.

[0060] Embodiment 2: A reinforced sheet fixing device, comprising a sheet fixing device (83) and a connecting belt (1), wherein the sheet fixing device (83) is installed on the vertical surface of the mattress (73), the connecting belt (1) is located behind the vertical surface layer (76) of the mattress (73), the internal core material of the mattress (73) comprises a lower frame strip (74), the connecting belt (1) is connected to the lower frame strip (74), and the sheet fixing device (83) is connected to the vertical surface layer (76) and the connecting belt (1); the connecting method can be one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection.

[0061] The attachment belt (1) has an attachment belt attachment hole (3) and an attachment gasket (4); the attachment gasket (4) is fixedly connected to the attachment belt (1) as a whole; the attachment belt attachment hole (3) is located on the attachment gasket (4).

[0062] The attachment belt attachment hole (3) is used for attachment to the sheet fastener (83), and the attachment gasket (4) is provided on the outer side of the edge of the attachment belt attachment hole (3) and has a structure that is thicker and / or harder than the flexible and bendable portion of the attachment belt (1).

[0063] The attachment belt (1) is entirely a plastic molding; or, the attachment belt is a fabric, and the attachment gasket is one of metal and plastic and is fixed to the fabric.

[0064] The attachment belt (1) is entirely a plastic molding, that is, the attachment belt (1) and the attachment gasket (4) are plastic moldings, and the parts of the attachment belt (1) other than the attachment gasket (4) are all flexible and bendable. The attachment gasket (4) is metal, that is, the attachment belt attachment hole (3) is a metal eyelet, the metal eyelet is riveted to the fabric, and the metal part outside the edge of the hole is the attachment gasket (4); the attachment gasket (4) is plastic, that is, the attachment gasket (4) is a plastic gasket, the plastic gasket is glued or high-temperature pressed to the fabric, and the plastic gasket has the attachment belt attachment hole (3).

[0065] At least one of the two ends of the attachment belt (1) is provided with a belt tail connection hole (12), and the belt tail connection hole (12) is one of a metal eyelet and a plastic eyelet. The metal eyelet is riveted to the fabric flat belt; the plastic eyelet is glued or high-temperature pressed to the fabric.

[0066] The inner core material of the mattress (73) includes frame strips, which are further divided into upper frame strips (75) and lower frame strips (74).

[0067] The attachment belt (1) is connected to at least the lower frame strip (74) through the belt tail connection hole (12), and the connection method can be one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection.

[0068] like Figure 4As shown, the attachment belt attachment portion (2) having the attachment belt attachment hole (3) has fixedly connected flexible and bendable attachment belt (1) portions above and below, and the attachment belt (1) is provided with two tail connection holes (12) at both ends, and the two tail connection holes (12) are separated in the width direction of the attachment belt (1). In this embodiment, the upper and lower ends of the attachment belt attachment hole (3) are respectively connected to the upper frame strip (75) and the lower frame strip (74) through the two tail connection holes (12) and in conjunction with the self-locking tie band (89).

[0069] Embodiment 3: A reinforced sheet fixing device, comprising a sheet fixing device (83) and a connecting belt (1), wherein the sheet fixing device (83) is installed on the vertical surface of the mattress (73), the connecting belt (1) is located behind the vertical surface layer (76) of the mattress (73), the internal core material of the mattress (73) comprises a lower frame strip (74), the connecting belt (1) is connected to the lower frame strip (74), and the sheet fixing device (83) is connected to the vertical surface layer (76) and the connecting belt (1); the connecting method can be one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection.

[0070] The attachment belt (1) is connected to the lower frame strip (74) through a clamp (14), the attachment belt (1) has an attachment belt attachment portion (2), the clamp (14) has two clamping portions (15), at least one of the two clamping portions (15) is provided with a protrusion (21) on its inner surface, and a buckling structure is provided between the two clamping portions (15), and the two clamping portions (15) are buckled together by the buckling structure to clamp the portion of the attachment belt (1) other than the attachment belt attachment portion (2).

[0071] The attachment belt attachment portion (2) is used for attachment to the bed sheet fastener (83), and the portion of the attachment belt (1) that is attached to the bed sheet fastener (83) is the attachment belt attachment portion (2).

[0072] like Figure 5 As shown, the inner core material of the mattress (73) includes frame strips, which are further divided into upper frame strips (75) and lower frame strips (74); the portion of the attachment belt (1) below the attachment portion (2) is folded around the adjacent portion of the lower frame strip (74) to form a double-layer attachment belt portion (7), and the two clamping portions (15) cooperate to clamp the double-layer attachment belt portion (7), thereby enabling the attachment belt (1) to be connected to the lower frame strip (74).

[0073] The attachment belt attachment portion (2) is provided with an attachment belt attachment hole (3); the two adjacent sides of the two clamping portions (15) are provided with an inter-clamping portion connecting portion (16), and the inter-clamping portion connecting portion (16) faces the length direction of the attachment belt (1), and the inter-clamping portion connecting portion (16) is fixedly connected to the two adjacent sides. The buckling structure includes a buckle joint (18) and a buckle hole (19). One of the two clamping portions (15) is provided with the buckle joint (18), and the other of the two clamping portions (15) is provided with the buckle hole (19) corresponding to the buckle joint (18). The two clamping portions (15) clamp the attachment belt (1) by buckling the buckle joint (18) with the buckle hole (19).

[0074] The bottom of the double-layer attachment belt portion (7) is located below the adjacent lower frame strip (74) portion, and the inter-clamp connection portion (16) adjacent to the lower frame strip (74) is at least partially located below the adjacent lower frame strip (74) portion and the double-layer attachment belt portion (7). While the two clamps (15) cooperate to clamp the double-layer attachment belt portion (7), the inter-clamp connection portion (16) tightly wraps the lower end portion of the adjacent double-layer attachment belt portion (7) and the adjacent lower frame strip (74) portion.

[0075] The attachment portion (2) of the attachment belt has an attachment gasket (4), the attachment gasket (4) is fixedly connected to the attachment belt (1) as a whole, and the attachment belt attachment hole (3) is located in the attachment gasket (4); the two ends of the connecting portion (16) between the clamping portions are respectively fixedly connected to parts of the two adjacent edges.

[0076] The connecting portion (16) between the clamping parts can be hard or flexible.

[0077] In this embodiment, the thickness of the connecting portion (16) between the clamping portions is smaller than the thickness of the clamping portion (15), and the connecting portion (16) between the clamping portions is flexible and bendable; one of the two clamping portions (15) is provided with two buckling holes (19), and the two buckling holes (19) are separated in the width direction of the attachment belt (1); the other of the two clamping portions (15) is provided with two buckling joints (18) corresponding to the two buckling holes (19), and the two buckling holes (19) are respectively outside the two sides of the attachment belt (1) in the width direction, and the corresponding two buckling joints (18) are also respectively outside the two sides of the attachment belt (1) in the width direction; one of the two clamping portions (15) is provided with a plurality of the protrusions (21) on its inner surface, and the other of the two clamping portions (15) is also provided with a plurality of the protrusions (21) on its inner surface, and the protrusions (21) on the two inner surfaces are staggered.

[0078] like Figure 6As shown, the buckle joint (18) is fixedly connected to the clamping portion (15) through a connecting column (20), the diameter of the buckle joint (18) is larger than the diameter of the connecting column (20), the buckle joint (18) at the point where the buckle joint (18) is fixedly connected to the connecting column (20) is located outside the edge of the connecting column (20) and acts as a hook, and the protrusion (21) is pointed.

[0079] There are two clamps (14), and the upper and lower parts of the connecting belt (1) are connected to the upper frame strip (75) and the lower frame strip (74) respectively through the two clamps (14).

[0080] The portion of the attachment belt (1) above the attachment belt attachment portion (2) is folded around the adjacent upper frame strip (75) portion to form a double-layer attachment belt portion (7), and the two clamping portions (15) cooperate to clamp the double-layer attachment belt portion (7), thereby realizing that the attachment belt (1) is connected to the upper frame strip (75); the top of the double-layer attachment belt portion (7) is on the top of the adjacent upper frame strip (75) portion, and the connecting portion (16) between the clamping portions adjacent to the upper frame strip (75) is at least partially on the top of the adjacent upper frame strip (75) portion and the double-layer attachment belt portion (7), and while the two clamping portions (15) cooperate to clamp the double-layer attachment belt portion (7), the connecting portion (16) between the clamping portions tightly wraps the upper end portion of the adjacent double-layer attachment belt portion (7) and the adjacent upper frame strip (75) portion.

[0081] Embodiment 4: A reinforced sheet fixing device, comprising a sheet fixing device (83) and a connecting belt (1), wherein the sheet fixing device (83) is installed on the vertical surface of the mattress (73), the connecting belt (1) is located behind the vertical surface layer (76) of the mattress (73), the internal core material of the mattress (73) comprises a lower frame strip (74), the connecting belt (1) is connected to the lower frame strip (74), and the sheet fixing device (83) is connected to the vertical surface layer (76) and the connecting belt (1); the connecting method can be one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection.

[0082] The attachment belt (1) is connected to the lower frame strip (74) through a clamp (14), the attachment belt (1) has an attachment belt attachment portion (2), a portion of the attachment belt (1) other than the attachment belt attachment portion (2) is provided with a plurality of protrusions (21), and the plurality of protrusions (21) are separated in the length direction of the attachment belt (1), the clamp (14) has two clamping portions (15), and the two clamping portions (15) cooperate to clamp the portion of the attachment belt (1) having the protrusions (21).

[0083] The attachment belt attachment portion (2) is used for attachment to the bed sheet fastener (83), and the portion of the attachment belt (1) that is attached to the bed sheet fastener (83) is the attachment belt attachment portion (2).

[0084] like Figure 5 As shown, the inner core material of the mattress (73) includes a frame strip, which is further divided into an upper frame strip (75) and a lower frame strip (74). The protrusions (21) are pointed, and the portion of the attachment belt (1) below the attachment portion (2) has the multiple protrusions (21). The portion of the attachment belt with the protrusions (21) is folded around the adjacent portion of the lower frame strip (74) to form a double-layer attachment belt portion (7). The two clamping portions (15) cooperate to clamp the double-layer attachment belt portion (7), thereby achieving the connection between the attachment belt (1) and the lower frame strip (74); at least one of the two inner surfaces of the clamped portion of the double-layer attachment belt portion (7) has the protrusions (21).

[0085] The attachment belt attachment portion (2) is provided with an attachment belt attachment hole (3); the two clamping portions (15) have an inter-clamping portion connecting portion (16) between two adjacent sides, and the inter-clamping portion connecting portion (16) faces the length direction of the attachment belt (1), and the inter-clamping portion connecting portion (16) is fixedly connected to the two adjacent sides, one of the two clamping portions (15) is provided with a buckle joint (18), and the other of the two clamping portions (15) is provided with a buckle hole (19) corresponding to the buckle joint (18), and the two clamping portions (15) clamp the attachment belt (1) by buckling the buckle joint (18) with the buckle hole (19).

[0086] The bottom of the double-layer attachment belt portion (7) is located below the adjacent lower frame strip (74) portion, the inter-clamp connection portion (16) adjacent to the lower frame strip (74) is at least partially located below the adjacent lower frame strip (74) portion, and the two clamps (15) cooperate to clamp the double-layer attachment belt portion (7).

[0087] The attachment portion (2) of the attachment belt has an attachment gasket (4), and the attachment gasket (4) is fixedly connected to the attachment belt (1) as a whole, and the attachment belt attachment hole (3) is located on the attachment gasket (4); the two ends of the connecting portion (16) between the clamping parts are respectively fixedly connected to the parts of the two adjacent edges, and the buckle joint (18), the connecting portion (16) between the clamping parts, and the buckle hole (19) are aligned; the attachment belt (1) is provided with a strip hole corresponding to the buckle joint (18), and the strip hole (10) extends in the length direction of the attachment belt (1), and the buckle joint (18) passes through the strip hole (10) and is buckled with the buckle hole (19), and the width of the strip hole (10) is greater than or equal to the width of the connecting portion (16) between the clamping parts.

[0088] In this embodiment, the thickness of the inter-clamp connection portion (16) is less than or equal to the thickness of the portion of the attachment belt (1) having the protrusion (21), the inter-clamp connection portion (16) is flexible and bendable, and the bottom of the inter-clamp connection portion (16) adjacent to the lower frame strip (74) is located within the strip-shaped hole (10).

[0089] The strip holes (10) are respectively provided on the left and right sides of the portion of the attachment belt (1) below the attachment portion (2), that is, the strip holes (10) are provided on the left and right sides of the portion of the attachment belt (1) provided with the protrusion (21).

[0090] There are two clamps (14), and the upper and lower parts of the connecting belt (1) are connected to the upper frame strip (75) and the lower frame strip (74) respectively through the two clamps (14); the connecting belt (1) is provided with a scale (11) in the length direction, and the scale (11) is located on the opposite side of the side of the connecting belt (1) having the protrusion (21) and between the two strip holes (10).

[0091] The portion of the attachment belt (1) above the attachment portion (2) of the attachment belt also has the plurality of protrusions (21), and the portion of the attachment belt with the protrusions (21) is folded around the adjacent portion of the upper frame strip (75) to form a double-layer attachment belt portion (7), and the two clamping portions (15) cooperate to clamp the double-layer attachment belt portion (7), thereby enabling the attachment belt (1) to be connected to the upper frame strip (75); at least one of the two inner surfaces of the clamped portion of the double-layer attachment belt portion (7) has a protrusion (21), and the top of the connecting portion (16) between the clamping portions adjacent to the upper frame strip (75) is located in the strip-shaped hole (10).

[0092] like Figure 6As shown, the snap joint (18) is fixedly connected to the clamping portion (15) through a connecting column (20), the diameter of the snap joint (18) is larger than the diameter of the connecting column (20), and the snap joint (18) at the point where the snap joint (18) is fixedly connected to the connecting column (20) is located outside the edge of the connecting column (20) and acts as a hook.

[0093] Embodiment 5: A reinforced sheet fixing device, comprising a sheet fixing device (83) and a connecting belt (1), wherein the sheet fixing device (83) is installed on the vertical surface of the mattress (73), the connecting belt (1) is located behind the vertical surface layer (76) of the mattress (73), the internal core material of the mattress (73) comprises a lower frame strip (74), the connecting belt (1) is connected to the lower frame strip (74), and the sheet fixing device (83) is connected to the vertical surface layer (76) and the connecting belt (1); the connecting method can be one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection.

[0094] The attachment belt (1) has an attachment belt attachment portion (2), and a plurality of belt tail connection holes (12) are provided at a portion of the attachment belt (1) other than the attachment belt attachment portion (2), and the plurality of belt tail connection holes (12) are separated in the length direction of the attachment belt (1), and a belt tail horizontal bar (13) is provided at a portion of the attachment belt (1) closer to the tail end of the attachment belt (1) on the outer side of each belt tail connection hole (12), and a plurality of belt tail connection holes (12) are provided at a portion of the attachment belt (1) extending in the width direction of the attachment belt (1).

[0095] The attachment belt attachment portion (2) is used for attachment to the bed sheet fastener (83), and the portion of the attachment belt (1) that is attached to the bed sheet fastener (83) is the attachment belt attachment portion (2).

[0096] The inner core material of the mattress (73) includes frame strips, which are further divided into upper frame strips (75) and lower frame strips (74). Figure 3As shown, the portion of the attachment belt (1) below the attachment portion (2) of the attachment belt is provided with the plurality of tail connection holes (12), and the portion of the attachment belt (1) closer to the lower tail end of the attachment belt (1) on the outer side of each tail connection hole (12) is provided with the tail cross bar (13); one of the tail cross bars (13) can be selected according to actual needs and connected to the lower frame bar (74) through the tail connection hole (12) immediately above the tail cross bar (13), thereby achieving the connection of the attachment belt (1) to the lower frame bar (74); and the redundant tail cross bars (13) can be cut off according to actual needs. The tail cross bar (13) can be fixedly connected to the frame bar by a self-locking tie (89) or a buckle (90) in conjunction with the tail connection hole (12); the buckle (90) can be a metal sheet or a metal bar.

[0097] The attachment belt attachment portion (2) is provided with an attachment belt attachment hole (3); the attachment belt attachment portion (2) has an attachment gasket (4), the attachment gasket (4) is fixedly connected to the attachment belt (1) as a whole, and the attachment belt attachment hole (3) is located on the attachment gasket (4).

[0098] The attachment belt (1) is also provided with the plurality of tail connection holes (12) at the attachment portion (2) of the attachment belt, and the attachment belt (1) is provided with the tail cross bar (13) at the outer side of each tail connection hole (12) and the portion of the attachment belt (1) closer to the upper tail end of the attachment belt (1); one of the tail cross bars (13) can be selected according to actual needs and connected to the upper frame bar (75) through the tail connection hole (12) immediately below the tail cross bar (13), thereby achieving the connection of the attachment belt (1) to the upper frame bar (75); and the redundant tail cross bars (13) can be cut off according to actual needs. The tail cross bar (13) can be fixedly connected to the upper frame bar (75) by a self-locking tie or a buckle in conjunction with the tail connection hole (12)

[0099] The belt tail connection hole (12) is in the shape of a horizontal strip and is centered in the width direction of the attachment belt (1), i.e., left and right; and / or, there are two belt tail connection holes (12) and they are separated in the width direction of the attachment belt (1) and are located on the left and right of the attachment belt (1), respectively.

[0100] Example 6: A reinforced sheet fixing device, comprising a sheet fixing device (83) and a connecting belt (1), wherein the sheet fixing device (83) is installed on the vertical surface of the mattress (73), the connecting belt (1) is located behind the vertical surface layer (76) of the mattress (73), the internal core material of the mattress (73) comprises a lower frame strip (74), the connecting belt (1) is connected to the lower frame strip (74), and the sheet fixing device (83) is connected to the vertical surface layer (76) and the connecting belt (1); the connecting method can be one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection.

[0101] The lower part of the attachment belt (1), i.e., the lower tail part thereof, is provided with a buckle joint (18) and a buckle hole (19), and the buckle hole (19) is also a belt tail connecting hole (12). The buckle joint (18) and the buckle hole (19) are separated in the length direction of the attachment belt, and the portion of the attachment belt (1) between the buckle joint (18) and the buckle hole (19) is folded around the adjacent portion of the lower frame strip (74). The portion of the attachment belt (1) between the buckle joint (18) and the buckle hole (19) is partially located under the adjacent portion of the lower frame strip (74), and the buckle joint (18) corresponds to and buckles with the buckle hole (19).

[0102] The attachment belt (1) has an attachment belt attachment portion (2); the attachment belt attachment portion (2) is used to be attached to the bed sheet fastener (83), and the portion of the attachment belt (1) that is attached to the bed sheet fastener (83) is the attachment belt attachment portion (2).

[0103] The inner core material of the mattress (73) includes frame strips, which are further divided into upper frame strips (75) and lower frame strips (74). The portion of the attachment belt (1) below the attachment belt attachment portion (2) is provided with the buckle joint (18) and the buckle hole (19); the portion of the attachment belt (1) above the attachment belt attachment portion (2) is also provided with the buckle joint (18) and the buckle hole (19); the upper and lower portions of the attachment belt attachment portion (2) are respectively connected to the upper frame strip (75) and the lower frame strip (74) through their respective buckle joints (18) and buckle holes (19).

[0104] The attachment belt attachment portion (2) is provided with an attachment belt attachment hole (3); the attachment belt attachment portion (2) has an attachment gasket (4), the attachment gasket (4) is fixedly connected to the attachment belt (1) as a whole, and the attachment belt attachment hole (3) is located on the attachment gasket (4).

[0105] Example 7: A reinforced sheet fixing device, comprising a sheet fixing device (83) and a connecting belt (1), wherein the sheet fixing device (83) is installed on the vertical surface of the mattress (73);

[0106] The mattress (73) includes the vertical layer (76), the bottom layer (77), and the lower edge band (78); the attachment band (1) is located in one of the layers of the vertical layer (76) and behind the vertical layer (76); the lower edge band (78) covers the lower edge of the vertical layer (76), the lower end of the attachment band (1), and the edge of the bottom layer (77) and sews the four together; the sheet fastener (83) is attached to the vertical layer (76) and the attachment band (1);

[0107] Alternatively, the mattress (73) comprises the vertical layer (76), the bottom layer (77), and the lower edge band (78); the attachment band (1) is located in front of the vertical layer (76); the left and right sides of the attachment band (1) are sewn to the vertical layer (76); the lower edge band (78) covers the lower end of the attachment band (1), the lower edge of the vertical layer (76), and the edge of the bottom layer (77) and sews these four together; the sheet fastener (83) is attached to the vertical layer (76) and the attachment band (1);

[0108] Alternatively, the mattress (73) includes a vertical layer (76) and a bottom layer (77), the vertical layer (76) and the bottom layer (77) are the same layer, the layer is located below the inner core material of the mattress (73), namely the bottom layer (77), the layer is located outside the vertical surface of the inner core material of the mattress (73), namely the vertical layer (76), the attachment belt (1) is located at one of the front side of the layer, the inner side of the layer, and the back side of the layer, and the attachment belt (1) has a portion located at the vertical layer (76) and the bottom layer (77), the portion of the attachment belt (1) located at the bottom layer (77) is sewn to the bottom layer (77), and the sheet fastener (83) is connected to the vertical layer (76) and the attachment belt (1).

[0109] like Figure 7As shown, the mattress (73) in this example includes the vertical layer (76), the bottom layer (77), and the lower edge band (78). The attachment band (1) is located behind the vertical layer (76). The lower edge band (78) wraps the lower edge of the vertical layer (76), the lower end of the attachment band (1), and the edge of the bottom layer (77) and sews the four together. The vertical layer (76) is the fabric of the mattress (73). Specifically, the lower edge band (78) wraps the lower edge of the vertical layer (76), the lower end of the attachment band (1), and the edge of the bottom layer (77) with the help of a lower piping strip (79). The lower piping strip (79) is finally wrapped by the lower edge band (78). The attachment pad (4) has a fixed and flexible portion of the attachment band (1) above and below. The mattress (73) further comprises a surface layer (80) and an upper edge band (81), wherein the upper edge band (81) covers the upper edge of the vertical layer (76), the upper end of the attachment band (1), and the edge of the surface layer (80), and sews the four together; specifically, the upper edge band (81) covers the upper edge of the vertical layer (76), the upper end of the attachment band (1), and the edge of the surface layer (80) with the aid of an upper piping strip (82), and the upper piping strip (82) is finally wrapped inside by the upper edge band (81). The material covered by the surface layer (80), the vertical layer (76), and the bottom layer (77) is the inner core material of the mattress.

[0110] The attachment belt (1) is provided with an attachment belt attachment hole (3), and the sheet fastener (83) is attached to the facade layer (76) and the attachment belt (1) through the attachment belt attachment hole (3). The attachment belt (1) is a fabric and has the attachment belt attachment hole (3), and the attachment belt attachment hole (3) is a perforated hole; or, the attachment belt (1) is entirely a plastic molding and has the attachment belt attachment hole (3); or, the attachment belt (1) is at least partially bonded to the back surface of the facade layer (76).

[0111] Specifically, before the attachment tape (1) is sewn, the attachment tape (1) is at least partially bonded to the back side of the facade layer (76); the attachment tape (1) can be a cloth-based tape and is bonded to the back side of the facade layer (76).

[0112] Embodiment 8: This embodiment is a combination of any one of embodiments 1 to 7 and the following description.

[0113] like Figure 13As shown, the sheet fastener (83) is installed on the outer facade of the mattress (73), and the installation structure includes the attachment belt (1); the sheet fastener (83) is attached to the facade layer (76) and the attachment belt (1) through the attachment belt attachment hole (3), and the attachment belt (1) is distributed with four attachment belt attachment holes (3).

[0114] The attachment pads (4) may be four and distributed on the attachment belt (1), i.e., the four attachment pads (4) are respectively located outside the edges of the four attachment belt attachment holes (3); or the four attachment belt attachment holes (3) may be located on the same attachment pad (4), i.e., the four attachment belt attachment holes (3) are distributed on the same attachment pad (4); Figures 1 to 3 As shown, the four mounting gaskets (4) may be distributed on the mounting belt mounting portion (2), that is, the four mounting gaskets (4) are respectively located outside the edges of the four mounting belt mounting holes (3) and the four mounting gaskets (4) are fixedly connected by ribs.

[0115] like Figure 12 As shown, the sheet fastener (83) is provided with a sheet fastener attachment hole (84), the sheet fastener attachment hole (84) corresponds to the attachment belt attachment hole (3), the sheet fastener (83) is attached to the attachment belt attachment hole (3) through the sheet fastener attachment hole (84), and the sheet fastener (83) is distributed with four sheet fastener attachment holes (84) corresponding to the four attachment belt attachment holes (3); the sheet fastener (83) is provided with longitudinal air vents (85) in the front and rear directions, the sheet fastener (83) has a sheet fastener side wall (86), the sheet fastener side wall (86) is provided with lateral air vents (87), and the lateral air vents (87) are in airflow communication with the longitudinal air vents (85).

[0116] In this embodiment, the connecting belt (1) is entirely made of plastic; the connecting belt (1) is provided with a connecting belt air hole (5) corresponding to the longitudinal air hole (85); and the portion of the connecting belt (1) outside the edge of the connecting belt air hole (5) is provided with an air hole outer convex portion (6). The sheet holder (83) is provided with an air tube (88), one end of which is fixedly connected to the back of the sheet holder (83), the tube hole of the air tube (88) corresponds to the longitudinal air hole (85), and the other end of the air tube (88) passes through the connecting belt air hole (5) and is located outside the connecting belt air hole (5) but does not exceed the air hole outer convex portion (6).

[0117] The inner vertical surface of the mattress (73) is provided with a plurality of the attachment belts (1), and the outer vertical surface of the mattress (73) is provided with a plurality of the sheet fasteners (83) corresponding to the plurality of attachment belts (1). The sheet fasteners (83) are attached to the vertical surface layer (76) and the attachment belts (1) through the sheet fastener attachment holes (84) and the attachment belt attachment holes (3).

[0118] Embodiment 9: A reinforced sheet fixing device, comprising a sheet fixing device (83) and a support spring assembly (26); the inner core material of the mattress (73) comprises a support spring (22); the support spring assembly (26) is connected to two support bars (23) of the support spring (22) on the left and right respectively; the sheet fixing device (83) is assembled with the vertical surface layer (76) of the mattress (73) and the support spring assembly (26); the assembly method can be one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection.

[0119] The support spring attachment (26) is provided with two surrounding frames (32), the two surrounding frames (32) being fixed on the left and right sides of the support spring attachment (26), respectively. The surrounding frames (32) have a partial frame space (33) for loosely accommodating the support spring (22) and its support bar (23). A support spring attachment attachment portion (27) is provided between the left and right sides of the support spring attachment (26). The support spring attachment attachment portion (27) is used for attaching to the sheet fastener (83), and the portion of the support spring attachment (26) that is attached to the sheet fastener (83) is the support spring attachment attachment portion (27).

[0120] The support spring attachment (26) includes a back plate (31) and a lower connecting portion (48), the width of the lower connecting portion (48) is smaller than the width of the back plate (31), the lower connecting portion (48) is fixedly connected to the back plate (31), and the lower edge of the lower connecting portion (48) is located below the back plate (31); the two surrounding frames (32) are respectively fixedly connected to the left and right upper portions of the front of the back plate (31), the surrounding frame (32) includes a left surrounding portion (35), a right surrounding portion (36), and a front surrounding portion (34), the left surrounding portion (35) is located at the left end of the front surrounding portion (34), and the right surrounding portion (36) is located at the right end of the front surrounding portion (34). The right end of the front enclosure (34), the left enclosure (35) and the right enclosure (36) are all fixedly connected to the front of the back panel (31); the left enclosure (35), the right enclosure (36) and the front enclosure (34) are fixedly connected and together with the adjacent portion of the back panel (31) behind the front enclosure (34) constitute the enclosure frame (32); the left and right sides of the back panel (31) are respectively provided with openings (40) corresponding to the two support strip coils (24) of the support spring (22); the support spring attachment part (27) is located at the portion of the back panel (31) between the two openings (40).

[0121] The front enclosure portion (34) can be fixedly connected to the left enclosure portion (35) and the right enclosure portion (36) by one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection.

[0122] like Figure 8 As shown, in this embodiment, the front enclosure (34) is a slat, and the left enclosure (35) and the right enclosure (36) are both provided with lateral insertion holes (37) corresponding to the cross-section of the front enclosure (34), i.e., the slat, and the lateral insertion hole (37) of one of the left enclosure (35) and the right enclosure (36) passes through both sides thereof, while the lateral insertion hole (37) of the other of the left enclosure (35) and the right enclosure (36) is not Through both sides thereof; one of the left enclosure part (35) and the right enclosure part (36) is provided with a latch hole (38) on its wall surface other than the direction of the lateral insertion hole (37); one end of the front enclosure part (34) is provided with an oblique edge (39) corresponding to the latch hole (38); the front enclosure part (34) is fixedly connected to the left enclosure part (35) and the right enclosure part (36) through the lateral insertion hole (37), the latch hole (38) and the oblique edge (39). In this embodiment, one of the left enclosure part (35) and the right enclosure part (36) is provided with the latch hole (38) on its front wall.

[0123] The support spring attachment (26) has a height-adjustable connection structure capable of adjusting its height, that is, the height-adjustable connection structure is provided between the back plate (31) and the lower connection portion (48). In this embodiment, the height-adjustable connection structure includes a transverse connection hole (41), a hook (51), a reinforcement barrier (43), and a fixing pin (47).

[0124] The back plate (31) is provided with at least two transverse connecting holes (41) on the left and right sides respectively and arranged up and down; specifically, the portion between the surrounding frame (32) on the left side of the back plate (31) and the supporting spring mounting part (27), and the portion between the surrounding frame (32) on the right side of the back plate (31) and the supporting spring mounting part (27) are respectively provided with at least two transverse connecting holes (41) and arranged up and down; the back plate (31) is provided with an adjustment positioning cylinder (411), and the adjustment positioning cylinder (411) has the transverse connecting hole (41), that is, the portion between the surrounding frame (32) on the left side of the back plate (31) and the supporting spring mounting part (27), and the portion between the surrounding frame (32) on the right side of the back plate (31) and the supporting spring mounting part (27) are respectively provided with at least two adjustment positioning cylinders (411) and arranged up and down. The lower connecting portion (48) includes two lower connecting portion vertical bars (49) on the left and right, and a lower connecting portion horizontal bar (50) is fixedly connected between the lower ends of the two lower connecting portion vertical bars (49). The two ends of the lower connecting portion horizontal bar (50) are respectively fixedly connected to the lower ends of the two lower connecting portion vertical bars (49). The upper ends of the two lower connecting portion vertical bars (49) are separated and respectively have the hooks (51). The two hooks (51) correspond to the horizontal connecting holes on the left and right of the back plate (31). The lower connecting portion (48) of this embodiment is formed by bending a metal strip; each of the horizontal connecting holes (41) is used to insert the hook (51) and is adjacent to a support portion (42) below the opening of the end to support the bent portion of the hook (51).

[0125] The left and right sides of the lower edge of the back plate (31) are respectively provided with the said reinforcement enclosure (43) corresponding to the said two lower connection part vertical bars (49), and the said reinforcement enclosure (43) has a front block part (44) and a side block part (46), the said front block part (44) is fixedly connected to the said side block part (46), and the said front block part (44) is fixedly connected to the said back plate (31) through the said side block part (46); the said reinforcement enclosure (43) on the left side of the said back plate (31) is provided with the said reinforcement enclosure (43) The side block (46) is on the right, and its left side is open; the side block (46) of the reinforcement enclosure (43) located on the right side of the back plate (31) is on the left, and its right side is open; the upper and lower parts between the front block (44) of the reinforcement enclosure (43) and the back plate (31) are both through-open; the two front blocks (44) are provided with pin holes (45) corresponding to the fixed pins (47), and the back plate (31) behind the front block (44) is provided with a pin hole (45). The position is also provided with a pin hole (45) corresponding to the fixed pin (47); the lower connecting portion (48) and the back plate (31) are fixedly connected to each other through the hook (51) and the transverse connecting hole (41), the reinforcement enclosure (43), and the fixed pin (47) so as to adjust the height of the support spring attachment (26). The hook (51) selects the corresponding transverse connecting hole (41) according to the need to adjust the height of the support spring attachment (26). ), that is, selecting the corresponding adjustment positioning cylinder (411) and inserting it into the horizontal connecting hole (41); the vertical bar (49) of the lower connecting part is partially placed in the reinforced enclosure (43), and the pin hole (45) of the front block (44) and the pin hole (45) of the back plate (31) behind the front block (44) are inserted into the fixed pin (47), and the fixed pin (47) is located on the outside of the vertical bar (49) of the lower connecting part.

[0126] like Figure 9As shown, the inner core material of the mattress (73) includes an upper frame bar (75), a lower frame bar (74) and the support spring (22), and the upper and lower parts of the support spring (22) are fixedly connected to the upper frame bar (75) and the lower frame bar (74) respectively through a buckle (90); the support spring assembly (26) is loosely connected to the two support bars (23) of the support spring (22) through the two surrounding frames (32), and the support spring (22) maintains normal elastic expansion and contraction performance. Each support bar (23) is capable of being displaced in the left and right directions as the support spring (22) is compressed; and the support spring attachment member (26) is fixedly connected to the support spring bottom bar (25) of the support spring (22) through the lower connecting portion (48). Specifically, the lower connecting portion horizontal bar (50) is fixedly connected to the support spring bottom bar (25) and the lower frame bar (74). The fixed connection method can be one or more of screw connection, buckle connection, clamp connection, sleeve connection, plug connection, hook connection, binding connection, and hoop connection. In this embodiment, the lower connecting portion horizontal bar (50) is fixedly connected to the support spring bottom bar (25) and the lower frame bar (74) through a self-locking tie (89).

[0127] like Figure 13 As shown, the sheet fastener (83) is installed on the outer facade of the mattress (73), and the installation structure includes the support spring mounting member (26); the sheet fastener (83) is mounted on the facade layer (76) of the mattress (73) and the support spring mounting member (26) through the support spring mounting member mounting portion (27), thereby connecting the internal core material of the mattress (73).

[0128] The supporting spring assembly attachment portion (27) is provided with a supporting spring assembly attachment hole (28) for attachment to the sheet fixer (83), and the supporting spring assembly attachment portion (27) is distributed with four supporting spring assembly attachment holes (28); the surface of the supporting spring assembly attachment portion (27) is provided with a protruding supporting spring assembly attachment tube (29), and the supporting spring assembly attachment tube (29) has the supporting spring assembly attachment hole (28), and the supporting spring assembly attachment portion (27) is distributed with four supporting spring assembly attachment tubes (29); the sheet fixer (83) is attached to the supporting spring assembly (26) through the supporting spring assembly attachment hole (28).

[0129] The back plate (31) is the mattress inner surface mounting portion (651), the support spring mounting member mounting hole (28) is the mattress inner surface mounting portion mounting hole (541), the lower connecting portion horizontal bar (50) is the fixed horizontal bar (621), and the lower connecting portion vertical bar (49) is the fixed vertical bar (631).

[0130] like Figure 12As shown, the sheet fixer (83) is provided with a sheet fixer mounting hole (84), the sheet fixer mounting hole (84) corresponds to the support spring mounting part mounting hole (28), the sheet fixer (83) is mounted with the support spring mounting part mounting hole (28) through the sheet fixer mounting hole (84), and the sheet fixer (83) is distributed with four sheet fixer mounting holes (84) corresponding to the four support spring mounting part mounting holes (28); the sheet fixer (83) is provided with longitudinal air vents (85) in the front-back direction, the sheet fixer (83) has a sheet fixer side wall (86), the sheet fixer side wall (86) is provided with lateral air vents (87), and the lateral air vents (87) are in airflow communication with the longitudinal air vents (85).

[0131] like Figure 11 As shown, the supporting spring assembly member attachment portion (27) is provided with a supporting spring assembly member air vent (30) corresponding to the longitudinal air vent (85), and the supporting spring assembly member air vent (30) is provided in plurality and distributed on the supporting spring assembly member attachment portion (27), thereby forming an air vent net behind the longitudinal air vent (85).

[0132] The inner vertical surface of the mattress (73) is provided with a plurality of the support spring mounting parts (26), and the outer vertical surface of the mattress (73) is provided with a plurality of the sheet fasteners (83) corresponding to the plurality of support spring mounting parts (26). The sheet fasteners (83) are mounted on the vertical surface layer (76) and the support spring mounting parts (26) through the sheet fastener mounting holes (84) and the support spring mounting parts mounting holes (28), thereby connecting the lower frame strip (74) and the upper frame strip (75).

[0133] Embodiment 10: A reinforced sheet fixing device, comprising a sheet fixing device (83) and a pressure-adapting support member (52), wherein the pressure-adapting support member (52) has a vertical movable portion (57) and a vertical movable limiting portion (60), wherein the vertical movable portion (57) can be moved up and down to be connected to the vertical movable limiting portion (60), wherein the upper edge of the vertical movable portion (57) is maintained above the upper edge of the vertical movable limiting portion (60), and the vertical movable limiting portion (60) has a support member attachment portion (53).

[0134] The support member attachment portion (53) is used for attachment to the sheet fastener (83), and the attachment method can be one or more of screw connection, buckle connection, snap connection, sleeve connection, plug connection, hook connection, tie connection, and hoop connection. The portion of the pressure-adaptable support member (52) that is attached to the sheet fastener (83) is the support member attachment portion (53).

[0135] The structure in the vertical movement limiting portion (60) for limiting the up and down movement of the vertical moving portion (57) can be one of a vertical guide hole, a guide bar, a guide groove, and a guide block.

[0136] The vertical moving part (57) comprises a moving part horizontal bar (58) and two moving part vertical bars (59), the two ends of the moving part horizontal bar (58) are respectively fixedly connected to the upper ends of the two moving part vertical bars (59), the vertical moving limiting part (60) comprises a mounting plate (65), a limiting part horizontal bar (62) and two limiting part vertical bars (63), the two ends of the limiting part horizontal bar (62) are respectively fixedly connected to the lower ends of the two limiting part vertical bars (63); the two limiting part vertical bars above the limiting part horizontal bar (62) are respectively fixedly connected to the lower ends of the two limiting part vertical bars (63); The mounting plate (65) is fixedly connected between the bars (63), and the left and right sides of the mounting plate (65) are respectively provided with vertical guide holes (72) corresponding to the two moving part vertical bars (59). The two moving part vertical bars (59) have parts respectively located in the two vertical guide holes (72). The two moving part vertical bars (59) can move up and down along the two vertical guide holes (72), and the supporting member mounting portion (53) is located at the portion of the mounting plate (65) between the two vertical guide holes (72).

[0137] like Figure 10 、 Figure 11As shown, in this embodiment, the vertical moving portion (57) is composed of the moving portion horizontal bar (58) and the two moving portion vertical bars (59), and the vertical moving limit portion (60) is composed of the limit portion horizontal bar (62) and the two limit portion vertical bars (63) and the mounting plate (65). The width of the vertical moving portion (57) is smaller than the width of the vertical moving limit portion (60), and the width of the vertical moving portion (57) is smaller than the distance between the inner sides of the two limit portion vertical bars (63); the mounting plate (65) is provided with fixed connecting vertical cylinders (66) on the left and right sides respectively corresponding to the two limit portion vertical bars (63), and the fixed connecting vertical cylinders (66) have vertical fixing holes (67) for the limit portion vertical bars (63) to be inserted The attachment plate (65) is provided with movable limiting vertical cylinders (71) on the left and right sides respectively corresponding to the two movable part vertical bars (59), that is, the movable limiting vertical cylinders (71) are provided on the left and right sides between the two fixed connection vertical cylinders (66) of the attachment plate (65) respectively corresponding to the two movable part vertical bars (59), and the movable limiting vertical cylinders (71) have the vertical guide holes (72) for the movable part vertical bars (59) to be inserted; the two limiting part vertical bars (63) are fixedly connected to the attachment plate (65) through the two fixed connection vertical cylinders (66), and the two movable part vertical bars (59) can be moved up and down to be attached to the attachment plate (65) of the vertical movable limiting part (60) through the two movable limiting vertical cylinders (71).

[0138] The vertical movement limiting portion (60) has a height adjustment connection structure capable of adjusting its height, and the height adjustment connection structure includes the two fixed connection vertical cylinders (66), an adjustment locking hole (69), an adjustment locking bolt (70), and a support member fixing portion (61). The support member fixing portion (61) is composed of the limiting portion horizontal bar (62) and the two limiting portion vertical bars (63). The adjustment locking hole (69) passes through the cylinder wall of one side of the fixed connection vertical cylinder (66). The limiting portion vertical bar (63) is inserted from bottom to top into the fixed connection vertical cylinder (66) and after adjusting the required height of the vertical movement limiting portion (60), the limiting portion vertical bar (63) is fixedly connected to the fixed connection vertical cylinder (66) through the adjustment locking hole (69) and the adjustment locking bolt (70). The support member fixing portion and the attachment plate (65) are fixedly connected via the limiting portion vertical bar (63), the fixed connection vertical cylinder (66), the adjustment locking cylinder (68), and the adjustment locking bolt (70) so as to adjust the height of the vertically movable limiting portion (60).

[0139] Specifically, the two fixed connection vertical cylinders (66) are each provided with an adjustment positioning cylinder (411) on the cylinder wall on one side of the edge of the attachment plate (65), the adjustment locking cylinder (68) and the fixed connection vertical cylinder (66) are perpendicular to each other and fixedly connected, and the adjustment positioning cylinder (411) has the adjustment locking hole (69); each fixed connection vertical cylinder (66) is provided with two adjustment locking holes (69), and the two adjustment locking holes (69) are respectively located at the upper and lower ends of the cylinder wall of the fixed connection vertical cylinder (66). The support member fixing portion (61) and the attachment plate (65) are fixedly connected to each other through the two limiting portion vertical bars (63), the two fixed connection vertical cylinders (66), the four adjustment locking cylinders (68), and the four adjustment locking bolts (70) to achieve the adjustable height of the vertical movement limiting portion (60).

[0140] In this embodiment, the support member fixing portion (61) and the vertical movable portion (57) are both folded from metal strips; the tail ends of the two limiting portion vertical strips (63) pass through the two vertical fixing holes (67) from bottom to top and are respectively located outside the two fixed connection vertical cylinders (66), and the tail ends of the two limiting portion vertical strips (63) are both folded into tail rings (64); the tail ends of the two movable portion vertical strips (59) pass through the two vertical guide holes (72) from top to bottom and are respectively located outside the two movable limiting vertical cylinders (71), and the tail ends of the two movable portion vertical strips (59) are both folded into tail rings (64), and the tail ends of the two movable portion vertical strips (59) remain below the two vertical guide holes (72), that is, the tail ends of the two movable portion vertical strips (59) remain below the lower edge of the mounting plate (65).

[0141] like Figure 11 As shown, the internal core material of the mattress (73) includes an upper frame bar (75) and a lower frame bar (74), and the upper and lower parts of the pressure-adapting support member (52) are fixedly connected to the upper frame bar (75) and the lower frame bar (74), respectively, that is, the vertical movable portion (57) is fixedly connected to the upper frame bar (75), and the vertical movable limiting portion (60) is fixedly connected to the lower frame bar (74); specifically, the movable portion cross bar (58) is fixedly connected to the upper frame bar (75), and the limiting portion cross bar (62) is fixedly connected to the lower frame bar (74); the movable portion cross bar (58) and the limiting portion cross bar (62) are fixedly connected to the upper frame bar (75) and the lower frame bar (74) respectively through a buckle (90); the buckle (90) can be a metal sheet or a metal bar, and the buckle (90) of this embodiment is a metal sheet.

[0142] like Figure 13As shown, the sheet fastener (83) is installed on the outer facade of the mattress (73), and the installation structure includes the pressure-adapting support member (52); the sheet fastener (83) is attached to the facade layer (76) of the mattress (73) and the pressure-adapting support member (52) through the support member attachment portion (53), thereby connecting the inner core material of the mattress (73).

[0143] The support member attachment portion (53) is provided with a support member attachment hole (54) for attachment to the sheet fixer (83), and the support member attachment portion (53) is distributed with four support member attachment holes (54); a protruding support member attachment tube (55) is provided on the surface of the support member attachment portion (53), and the support member attachment tube (55) has the support member attachment hole (54), and the support member attachment portion (53) is distributed with four support member attachment tubes (55); the sheet fixer (83) is attached to the vertical movement limiting portion (60) of the pressure-adapting support member (52) through the support member attachment hole (54).

[0144] The mounting plate (65) is the mattress inner surface mounting portion (651), the support member mounting hole (54) is the mattress inner surface mounting portion mounting hole (541), the limiting portion horizontal bar (62) is the fixed horizontal bar (621), and the limiting portion vertical bar (63) is the fixed vertical bar (631).

[0145] like Figure 12 As shown, the sheet fixer (83) is provided with a sheet fixer mounting hole (84), the sheet fixer mounting hole (84) corresponds to the support member mounting hole (54), the sheet fixer (83) is mounted on the support member mounting hole (54) through the sheet fixer mounting hole (84), and the sheet fixer (83) is distributed with four sheet fixer mounting holes (84) corresponding to the four support member mounting holes (54); the sheet fixer (83) is provided with longitudinal air holes (85) in the front and rear directions, the sheet fixer (83) has a sheet fixer side wall (86), the sheet fixer side wall (86) is provided with lateral air holes (87), and the lateral air holes (87) are in airflow communication with the longitudinal air holes (85).

[0146] like Figure 11 As shown, the support member attachment portion (53) is provided with a support member air hole (56) corresponding to the longitudinal air hole (85), and the support member air hole (56) is provided in plurality and distributed on the support member attachment portion (53), thereby forming an air permeable net behind the longitudinal air hole (85).

[0147] The inner vertical surface of the mattress (73) is provided with a plurality of the pressure-adapting support members (52), and the outer vertical surface of the mattress (73) is provided with a plurality of the sheet fasteners (83) corresponding to the plurality of pressure-adapting support members (52). The sheet fasteners (83) are attached to the vertical surface layer (76) and the pressure-adapting support members (52) through the sheet fastener attachment holes (84) and the support member attachment holes (54), thereby connecting the lower frame strip (74) and the upper frame strip (75).

[0148] Example 11: A reinforced sheet fixing device, comprising a sheet fixing device (83), a mattress inner surface attachment portion (651) and two fixed vertical bars (631), wherein the mattress inner surface attachment portion (651) and the two fixed vertical bars (631) are located behind the vertical layer (76) of the mattress (73), and the two fixed vertical bars (631) are fixedly connected to the left and right sides of the mattress inner surface attachment portion (651), respectively, and the two fixed vertical bars (631) are fixedly connected to the inner core material of the mattress (73), and the sheet fixing device (83) is attached to the vertical layer (76) and the mattress inner surface attachment portion (651).

[0149] The inner core material of the mattress (73) is a relatively dense cushion layer, which can be a cushion layer made of plant fibers or a cushion layer made of artificial synthetic fibers; the mattress inner vertical surface attachment portion (651) is attached to the vertical surface of the cushion layer, and the two fixed vertical bars (631) are respectively located at the edges of the upper surface and the lower bottom surface of the cushion layer, and thus the mattress inner vertical surface attachment portion (651) is fixedly connected to the cushion layer through the two fixed vertical bars (631).

[0150] The above embodiments are merely examples for illustrating the technical solutions of the present disclosure. Obviously, the specific implementation of the technical solutions of the present disclosure is not limited to the above-mentioned methods. The embodiments disclosed herein should not be considered as excluding other implementation methods. Instead, they can be modified, transformed, and combined into other different forms based on the above description. Any modification, equivalence, or equivalent replacement, and improvement that is made within the scope of the technical concept disclosed by the technical solutions of the present disclosure and does not deviate from the spirit and principles of the technical solutions of the present disclosure are included in the scope of protection of the technical solutions of the present disclosure.

Claims

1. A reinforced sheet fixing device, characterized in that: The mattress comprises a sheet fastener and a mounting belt. The sheet fastener is mounted on the vertical surface of the mattress. The mounting belt is located behind the vertical surface layer of the mattress. The inner core material of the mattress comprises a lower frame bar. The mounting belt is connected to the lower frame bar. The sheet fastener is mounted to the vertical surface layer and the mounting belt.

2. The reinforced sheet fixing device according to claim 1, characterized in that: The attachment belt is connected to the lower frame strip via a clamp, the clamp having two clamping parts, the lower part of the attachment belt is folded around the adjacent part of the lower frame strip to form a double-layer attachment belt part, and the two clamping parts cooperate to clamp the double-layer attachment belt part; Alternatively, the attachment belt is connected to the lower frame strip via a clamp, the clamp having two clamping parts, two adjacent sides of the two clamping parts having an inter-clamping connecting part, the inter-clamping connecting part being at least partially located under a portion adjacent to the lower frame strip, and the two clamping parts cooperate to clamp the attachment belt; Alternatively, the tail of the attachment belt is provided with at least one of a tail connection hole and a tail horizontal bar, and the tail connection hole is one of a plastic eyelet, a curled edge eyelet, and a metal eyelet, and the attachment belt is connected to the lower frame bar through at least one of the tail connection hole and the tail horizontal bar.

3. The reinforced sheet fixing device according to claim 2, characterized in that: A buckling structure is provided between the two clamping parts, and the two clamping parts clamp the attachment belt after being buckled by the buckling structure; Alternatively, a buckle joint and a buckle hole are provided at the lower portion of the attachment strap, the buckle hole being the strap tail connecting hole, the buckle joint and the buckle hole being separated in the length direction of the attachment strap, the portion of the attachment strap between the buckle joint and the buckle hole being folded around the portion of the adjacent lower frame strip, the portion of the attachment strap between the buckle joint and the buckle hole being partially located under the portion of the adjacent lower frame strip, the buckle joint corresponding to the buckle hole and being buckled; Alternatively, the tail of the attachment belt is provided with the tail connection hole and the tail cross bar, the tail cross bar is closer to the tail of the attachment belt relative to the tail connection hole, and the attachment belt is connected to the lower frame bar through the tail connection hole and the tail cross bar.

4. The reinforced sheet fixing device is characterized by: It includes a sheet fastener and a mounting belt, wherein the sheet fastener is installed on the vertical surface of the mattress; The mattress comprises a vertical layer, a bottom layer, and a lower edge band, the attachment band is located at one of an inner layer of the vertical layer and a rear side of the vertical layer, the lower edge band wraps around the lower edge of the vertical layer, the lower end of the attachment band, and the edge of the bottom layer and sews these four together, and the sheet fastener is attached to the vertical layer and the attachment band; Alternatively, the mattress includes a vertical layer, a bottom layer, and a lower edge band, the attachment band is located in front of the vertical layer, the left and right sides of the attachment band are sewn to the vertical layer, the lower edge band wraps around the lower end of the attachment band, the lower edge of the vertical layer, and the edge of the bottom layer and sews these four together, and the sheet fastener is attached to the vertical layer and the attachment band; Alternatively, the mattress includes a vertical layer and a bottom layer, the vertical layer and the bottom layer are the same layer, the layer is located under the inner core material of the mattress, namely the bottom layer, and the layer is located outside the vertical surface of the inner core material of the mattress, namely the vertical layer, the attachment belt is located at one of the front side of the layer, the inner layer of the layer, and the back side of the layer, and the attachment belt has parts located at the vertical layer and the bottom layer respectively, the part of the attachment belt located at the bottom layer is sewn to the bottom layer, and the sheet fastener is attached to the vertical layer and the attachment belt.

5. The reinforced sheet fixing device according to any one of claims 1 to 4, characterized in that: The attachment belt is located behind the facade layer, and the attachment belt is provided with an attachment belt attachment hole, and the bed sheet fastener is attached to the facade layer and the attachment belt through the attachment belt attachment hole; The attachment belt is made of fabric and has attachment holes, which are ironed holes; or, the attachment belt is entirely made of plastic and has attachment holes; or, the attachment belt is at least partially bonded to the back of the facade layer.

6. The reinforced sheet fixing device is characterized by: It includes a sheet fastener and a support spring assembly. The inner core material of the mattress includes support springs. The left and right sides of the support spring assembly are respectively connected to two support bars of the support springs. The sheet fastener is attached to the vertical surface layer of the mattress and the support spring assembly.

7. The reinforced sheet fixing device according to claim 6, characterized in that: The core material includes a lower frame bar, and the support spring assembly has a lower connecting part, which connects the lower frame bar and the support spring bottom bar of the support spring. The left and right sides of the support spring assembly are loosely connected to the two support bars respectively, and the two support bars can be elastically stretched up and down. The support spring assembly is provided with a support spring assembly attachment hole, and the sheet fastener is attached to the facade layer and the support spring assembly through the support spring assembly attachment hole.

8. The reinforced sheet fixing device is characterized by: It includes a sheet fastener, a mattress inner vertical surface attachment part and two fixed vertical bars. The mattress inner vertical surface attachment part and the two fixed vertical bars are located behind the vertical surface layer of the mattress. The two fixed vertical bars are fixedly connected to the left and right sides of the mattress inner vertical surface attachment part respectively. The two fixed vertical bars are fixedly connected to the internal core material of the mattress. The sheet fastener is attached to the vertical surface layer and the mattress inner vertical surface attachment part.

9. The reinforced sheet fixing device according to claim 8, characterized in that: The mattress inner vertical surface attachment part is provided with vertical fixing holes on the left and right sides respectively, and the two fixing vertical bars are fixedly connected to the mattress inner vertical surface attachment part through the two vertical fixing holes respectively. The mattress inner vertical surface attachment part is provided with a mattress inner vertical surface attachment part attachment hole, and the sheet fastener is attached to the vertical surface layer and the mattress inner vertical surface attachment part through the mattress inner vertical surface attachment part attachment hole.

10. The reinforced sheet fixing device according to claim 8, characterized in that: A fixed horizontal bar is fixedly connected between the lower ends of the two fixed vertical bars, and the upper ends of the two fixed vertical bars are separated and each has a hook, and a plurality of horizontal connecting holes arranged vertically are provided on the left and right sides of the mattress inner vertical surface attachment portion respectively corresponding to the two hooks; Alternatively, fixed connecting vertical cylinders are provided on the left and right sides of the inner vertical surface attachment part of the mattress respectively corresponding to the two fixed vertical bars, and the fixed connecting vertical cylinders have vertical fixing holes for the fixed vertical bars to be inserted, and the fixed connecting vertical cylinders have adjustment locking holes running through the cylinder wall, and the fixed vertical bars are fixedly connected to the fixed connecting vertical cylinders by adjusting locking bolts that cooperate with the adjustment locking holes.

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