Split type folding electric bed with no-glue folding mattress

Abstract

A split type folding electric bed with a folding mattress without glue, the technical field of smart home equipment, including right bed body, left bed body and folding mechanism, the right bed body and left bed body are connected through the folding mechanism and can realize the folding of the right bed body and left bed body, the left bed body is provided with a left limiting plate, the right bed body is provided with a right limiting plate, the left bed body and the right bed body are placed with a folding mattress without glue, and the folding mattress without glue is between the left limiting plate and the right limiting plate. The utility model discloses a split type bed body and folding mechanism realize multi-angle adjustment, cooperate limiting plate and no glue mattress structure, solve the traditional electric bed transportation difficulty, folding function single, mattress harmful substance release and displacement problem, have the advantages such as convenient transportation and storage, realize multi-angle folding adjustment, stable and reliable structure, avoid harmful substance release, prevent mattress displacement etc.

Description

Technical Field

[0001] This utility model relates to the field of smart home equipment technology, and more specifically, to a split-type folding electric bed with a glue-free folding mattress. Background Technology

[0002] As people's living standards improve, their demands for the convenience, comfort, and health of home furnishings are increasing. Currently, most electric beds and mattresses on the market are one-piece designs, which presents difficulties in transportation and storage, especially for small-apartment families or users who need to frequently move their beds.

[0003] Traditional electric beds generally adopt a one-piece structure with limited folding functionality, unable to achieve multi-angle adjustments, and thus failing to meet users' personalized needs in different usage scenarios. Furthermore, the folding mechanisms of existing electric beds suffer from structural complexity, high operating noise, and insufficient stability, making them prone to mechanical failure with prolonged use. Regarding mattresses, traditional products often use adhesive bonding, which not only releases harmful substances such as formaldehyde, affecting human health, but also causes the mattress to delaminate and deform as the adhesive ages, severely impacting its lifespan.

[0004] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art above, and to propose a split-type folding electric bed with a glue-free folding mattress.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A split-type folding electric bed with a glue-free folding mattress includes a right bed body, a left bed body, and a folding mechanism. The right and left bed bodies are connected by the folding mechanism and can be folded together. The left bed body is provided with a left limiting plate, and the right bed body is provided with a right limiting plate. A folding glue-free mattress is placed on the left and right bed bodies, and the folding glue-free mattress is located between the left and right limiting plates. The folding glue-free mattress has several layers that can be freely combined and compressed for easy folding.

[0007] Furthermore, the folding mechanism includes at least one set of right bed rotating units fixed to the right bed and left bed rotating units fixed to the left bed, and a pin pivotally connecting the right bed rotating units and the left bed rotating units, the pin being equipped with a safety cotter pin.

[0008] The solution is detailed as follows: the first bed rotating unit is a first connecting plate, the second bed rotating unit is a second connecting plate, the first connecting plate is bolted to the third connecting plate, the second connecting plate is bolted to the fourth connecting plate, the fourth connecting plate, the third connecting plate, and the connecting block are bolted together. A screw is welded to the connecting block, and an outer sleeve is threaded onto the screw. A spring is welded to the outer sleeve. A second fixing plate is welded to the second connecting plate, and a first fixing plate is welded to the second connecting plate. The second fixing plate is fixedly connected to the second bed, and the first fixing plate is fixedly connected to the first bed. A lower extension plate is connected to the first fixing plate, and a vertical slide groove is formed on the lower extension plate. A slider is slidably fitted in the vertical slide groove, and a spring is fixedly connected to the slider. A locking bolt is provided on the slider, and locking threaded holes that mate with the locking bolt are provided at different heights in the vertical slide groove.

[0009] In a more detailed design, the first bed rotating unit is a first rotating arm, and the second bed rotating unit is a second rotating arm. The first rotating arm and the second rotating arm are pivotally connected by pins. The first rotating arm has a first connecting end and a second connecting end, and the second rotating arm has a third connecting end and a fourth connecting end. The first connecting end is rotatably connected to a first support plate, and the third connecting end is rotatably connected to a second support plate. The second support plate is fixedly connected to the second bed, and the first support plate is fixedly connected to the first bed.

[0010] Furthermore, the right bed body includes a right bed frame, a right bed body fixed bed board is fixedly connected to the top of the right bed frame, a right bed body flip-up bed board is rotatably connected to the right bed body fixed bed board, and a right bed body rotating mechanism is pivotally connected to the bottom of the right bed frame, the right bed body rotating mechanism being able to drive the right bed body flip-up bed board to rotate.

[0011] Furthermore, the right bed frame includes a right middle crossbar and a right bed electric cylinder bracket; the right bed rotating mechanism includes a right bed main rotating beam, a right bed auxiliary rotating beam, a right bed main rotating beam bracket, a right bed rotating electric cylinder, and a right bed rotating mechanism roller; a right bed auxiliary rotating beam is fixedly connected to each end of the right bed main rotating beam; a right bed main rotating beam bracket is eccentrically fixed on the right bed main rotating beam; at least one right bed rotating mechanism roller is rotatably connected to the right bed auxiliary rotating beam; the right bed auxiliary rotating beam is rotatably connected to the right middle crossbar; and a right bed rotating electric cylinder is installed between the right bed main rotating beam bracket and the right bed electric cylinder bracket.

[0012] Furthermore, the vertical height of the hinge point between the right bed main rotating beam support and the right bed rotating electric cylinder is higher than the vertical height of the hinge point between the right bed rotating electric cylinder and the right bed electric cylinder support.

[0013] Furthermore, when the telescopic rod of the right bed rotating electric cylinder extends, it enables the right bed auxiliary rotating beam to rotate so that the roller of the right bed rotating mechanism abuts against the bottom of the right bed flip-up board.

[0014] Furthermore, an inclined surface is formed at the top of the end of the auxiliary rotating beam of the right bed near the roller of the right bed rotating mechanism. When the telescopic rod of the electric cylinder of the right bed rotating mechanism is extended to its maximum, the inclined surface remains parallel to the flip-up bed board of the right bed.

[0015] Furthermore, the left bed body includes a left bed frame, with a fixed left bed board fixedly connected to the top of the left bed frame, and a rotatable left bed flip-up board rotatably connected to the top of the left bed frame. The left bed flip-up board includes a set of pivotally connected left bed main flip-up board and left bed auxiliary flip-up board. The left bed main flip-up board is rotatably connected to the top of the left bed frame, and the left bed auxiliary flip-up board is rotatably connected to the top of the left bed frame. A left bed rotating mechanism is pivotally connected to the bottom of the left bed frame, and the left bed rotating mechanism can drive the left bed flip-up board to rotate.

[0016] Furthermore, the left bed frame includes a left middle crossbar and a left bed electric cylinder bracket. The left bed rotating mechanism includes a left bed main rotating beam, a left bed auxiliary rotating beam, a left bed main rotating beam bracket, a left bed rotating electric cylinder, and a left bed rotating mechanism roller. A left bed auxiliary rotating beam is fixedly connected to each end of the left bed main rotating beam. A left bed main rotating beam bracket is eccentrically fixed to the left bed main rotating beam. A left bed rotating mechanism roller is rotatably connected to the left bed auxiliary rotating beam. The left bed auxiliary rotating beam is rotatably connected to the left middle crossbar. A left bed rotating electric cylinder is installed between the left bed main rotating beam bracket and the left bed electric cylinder bracket.

[0017] Furthermore, the vertical height of the hinge point between the left bed main rotating beam support and the left bed rotating electric cylinder is higher than the vertical height of the hinge point between the left bed rotating electric cylinder and the left bed electric cylinder support.

[0018] Furthermore, a safety fixing connection block is provided between the right bed frame and the left bed frame. The safety fixing connection block is fixedly connected to the secondary beam in the right bed frame and the secondary beam in the left bed frame. The safety fixing connection block is provided with bed leg fixing holes and equipped with bed legs.

[0019] Furthermore, the right bed frame sub-beam, the left bed frame sub-beam, and the safety fixing connection block are equipped with bed legs.

[0020] Furthermore, the right and left bed frames are provided with buffer pads symmetrically or offset on the same side plane relative to the folding mechanism.

[0021] Furthermore, the folding adhesive-free mattress includes a side cover, a comfort layer, a surface layer, a foam support layer, and a bottom layer. The side cover is divided into an upper cavity and a lower cavity by a fabric spacer layer. The lower cavity is broken in the middle of its width to form a lower left cavity and a lower right cavity that can be folded along the middle of the fabric spacer layer. The upper edge of the upper cavity and the lower edges of the lower left and lower right cavities are respectively provided with open-end zippers. The comfort layer is placed inside the upper cavity, and the surface layer is placed on top of the comfort layer. The lower left and lower right cavities are respectively provided with foam support layers wrapped in zippered fabric covers. The surface layer and the comfort layer adopt an adhesive-free process. The comfort layer is simply fixed by zippers or stacked without fixing. The surface layer is quilted and connected to the upper cavity after being sewn with an open-end zipper. The bottom layer includes two pieces, a lower left bottom layer and a lower right bottom bottom layer, which are quilted and connected to the bottom of the lower left and lower right cavities after being sewn with an open-end zipper.

[0022] Furthermore, the comfort layer comprises at least three layers of soft materials with different materials and hardnesses, and the layers can be interchanged in order. The materials of the soft material layers are selected from one or more of the following: slow rebound sponge, Q-elastic cotton, MINI spring, latex, and gel.

[0023] Furthermore, the sponge support layer has at least one staggered groove on its upper and lower surfaces along the turning center line of the right bed flip board, the left bed main flip board, and the left bed auxiliary flip board. The depth of the groove is 1 / 3 of the thickness of the sponge support layer, and the distance between the connecting edges of the grooves is greater than 2.5 cm. The maximum width of the staggered groove is 1~2.5 cm. The staggered groove is a combination of V-shaped and arc-shaped grooves, and the arc is located at the connecting point of the sponge support layer.

[0024] Furthermore, both the top layer and the side sleeve have double-headed zippers with opposite ends. The zipper head can stay in any position when closed, and the top layer and side sleeve can be separated by pulling them in the opposite direction, which facilitates storage, replacement, drying, and the addition of electrical performance functional layers.

[0025] Furthermore, a self-lubricating wear-resistant nylon gasket is sandwiched between the rigid metal parts that are connected in pairs. The four sides of the side sleeve, comfort layer, surface layer, sponge support layer and bottom layer are all locked and the edges of the sewn connection parts are all fixed with exposed stitching.

[0026] Furthermore, the electrical control system includes a power supply, a control system, a wireless remote controller, a voice control box, and several connecting cables; the input end of the power supply is electrically connected to an external power inlet via a power connection cable, and the output end of the power supply is electrically connected to the power inlet of the control system via a connection cable; the control system has at least two control output interfaces, which are electrically connected to the control ends of the left bed rotating electric cylinder and the right bed rotating electric cylinder, respectively; the operating status of the left bed rotating electric cylinder and the right bed rotating electric cylinder can be controlled by the wireless remote controller and the voice control box.

[0027] Compared with the prior art, the beneficial effects of this utility model are: This utility model achieves multi-angle adjustment through a split bed body and folding mechanism, and with the limit plate and glue-free mattress structure, it solves the problems of difficult transportation, single folding function, release of harmful substances and displacement of mattresses in traditional electric beds. It has the advantages of easy transportation and storage, multi-angle folding adjustment, stable and reliable structure, avoidance of release of harmful substances, and prevention of mattress displacement. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the usage state of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention after removing the folded, glue-free mattress. Figure 3 This is a front view of the present invention after the folded, glue-free mattress has been removed; Figure 4 This is a schematic diagram of the folding process after removing the folded, glue-free mattress of this utility model; Figure 5 A three-dimensional structural diagram of the left and right bed frames during assembly; Figure 6 This is a three-dimensional structural diagram of the right bed rotation mechanism; Figure 7 This is a three-dimensional structural diagram of the left bed rotation mechanism; Figure 8 A three-dimensional structural diagram of the secure fixed connection block.

[0029] Figure 9 An explosion diagram of a glue-free folding mattress; Figure 10 This is a schematic diagram of the sponge support layer. Figure 11 This is a schematic diagram of the electronic control system of this utility model; Figure 12 This is a diagram illustrating the zipper at the ends of a glue-free folding mattress. Figure 13 This is a three-dimensional structural diagram of the present invention when a folding, glue-free mattress is installed. Figure 14 This is a schematic diagram showing the folded state of the side sleeve, support layer, and bottom layer; Figure 15 A schematic diagram showing the curled state of the surface layer and comfort layer; Figure 16 This is a schematic diagram of the structure of the second embodiment of the folding mechanism; Figure 17 This is a schematic diagram of the disassembled structure of the second embodiment of the folding mechanism; Figure 18 This is a schematic diagram of the third embodiment of the folding mechanism; Figure 19This is a schematic diagram of the third embodiment of the folding mechanism in the product; Figure 20 This is a schematic diagram of the third embodiment of the folding mechanism in its maximum straight-line flattened state in the product. Figure 21 This is a schematic diagram of the state of the third embodiment of the folding mechanism at a certain moment during the folding process; Figure 22 This is a schematic diagram of the folded state of the third embodiment of the folding mechanism. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments: In existing technologies, traditional electric beds and mattresses are designed as a single unit, resulting in excessive transport volume. The adhesive bonding process releases harmful substances that threaten user health. Limited adjustment angles fail to meet diverse needs, and complex mechanical structures generate noise, negatively impacting the user experience. A community nursing home needs to purchase a batch of electric nursing beds. The requirements are that the beds can be disassembled for transport to narrow floors, the mattress material is non-toxic and harmless, and the beds must have multi-angle adjustment to accommodate different nursing positions. To address these issues, the R&D team discovered that a modular structure could reduce transportation difficulties, but the stability of the connecting parts needed to be addressed; a glue-free process could eliminate chemical contamination, but the reliability of the mattress layers needed to be ensured; and the folding mechanism needed to achieve multi-angle adjustment within a limited space while avoiding noise generated by direct friction between metal parts. By introducing modular connection structures, physical limiting devices, and self-lubricating materials, a solution was gradually developed.

[0031] like Figures 1-15 As shown, a split-type electric folding bed with a glue-free folding mattress includes a right bed body 1, a left bed body 2, and a folding mechanism 3. The right bed body 1 and the left bed body 2 are connected by the folding mechanism 3, which enables the folding of the right and left bed bodies. The size after folding is greatly reduced, and it does not rely on professional skills. The installation is very convenient, ensuring the aesthetic appearance of transportation and packaging while providing customers with a perfect experience.

[0032] The left bed frame is provided with a left limiting plate 201, and the right bed frame is provided with a right limiting plate 101. A folding glue-free mattress 400 is placed on the left and right bed frames, and the folding glue-free mattress is located between the left and right limiting plates.

[0033] The right and left bed frames refer to independently detachable support frames, typically welded from aluminum alloy profiles. The folding mechanism is the movable component connecting the left and right bed frames, such as a combination of rotating units and pins. The left and right limiting plates are vertically fixed to the edges of the bed frame, for example, using ABS sheets with a height 0.8 times the mattress thickness, used to constrain horizontal displacement of the mattress. A folding, adhesive-free mattress refers to a multi-layered composite material without chemical adhesives, such as independent functional layers connected by zippers, with each layer secured by physical seams. Specifically, the folding mechanism achieves relative rotation of the left and right bed bodies through a rotating unit, with a pin acting as a pivot to ensure rotational stability. When folding is required, the folding mechanism is operated to rotate the right bed body around the pin axis until it overlaps with the left bed body. The above technical solution allows for the folding and storage of both bed frames during transportation. Upon arrival, users can easily unfold and use them without the need for specialized tools or technical guidance. The folding mechanism, through a pre-set rotating unit and pin engagement, ensures the reliability and consistency of the folding action, avoiding the repeated adjustments required by traditional multi-hinge structures. The anti-detachment design of the safety cotter pin simplifies the structure while ensuring connection stability during long-term use.

[0034] In at least one embodiment, the folding mechanism 3 includes at least one set of a right bed rotating unit 31 fixed to the right bed 1 and a left bed rotating unit 32 fixed to the left bed 2, and a pin 33 pivotally connecting the right bed rotating unit 31 and the left bed rotating unit 32, the pin 33 being equipped with a safety cotter pin.

[0035] In some embodiments, such as Figure 16 and Figure 17 As shown, the first bed rotating unit 31 is a first connecting plate, and the second bed rotating unit 32 is a second connecting plate. The first connecting plate is bolted to the third connecting plate 35, and the second connecting plate is bolted to the fourth connecting plate 34. The fourth connecting plate, the third connecting plate, and the connecting block 36 are bolted together. A screw 37 is welded onto the connecting block, and an outer sleeve 38 is threaded onto the screw. A spring 39 is welded onto the outer sleeve. A second fixing plate 321 is welded onto the second connecting plate, and a first fixing plate 311 is welded onto the second connecting plate. The second fixing plate is fixedly connected to the second bed, and the first fixing plate is fixedly connected to the first bed. A lower extension plate 312 is connected to the first fixing plate. A vertical slide groove 313 is formed on the lower extension plate. A slider is slidably fitted in the vertical slide groove. A spring is fixedly connected to the slider, and a locking bolt is provided on the slider. Correspondingly, locking threaded holes that mate with the locking bolt are provided at different heights in the vertical slide groove.

[0036] In some embodiments, such as Figures 18 to 22As shown, the first bed rotating unit 31 is a first rotating arm, and the second bed rotating unit 32 is a second rotating arm. The first and second rotating arms are pivotally connected by a pin 33. The first rotating arm has a first connecting end 3101 and a second connecting end 3102, and the second rotating arm has a third connecting end 3201 and a fourth connecting end 3202. The first connecting end is rotatably connected to a first support plate 3103, and the third connecting end is rotatably connected to a second support plate 3203. The second support plate is fixedly connected to the second bed, and the first support plate is fixedly connected to the first bed. By changing the positions of the second and fourth connecting ends, different folding angles of the first and second bed can be achieved. This mechanism can be translated (pulled out / folded) and rotated and folded, making it suitable for furniture applications.

[0037] In at least one embodiment, the right bed body 1 includes a right bed frame 11, with a right bed frame fixedly connected to the top of the right bed frame to a right bed frame fixed bed board 13. The right bed frame fixed bed board is rotatably connected to a right bed frame flip-up bed board 14, and the two can be connected together by hinges. The bottom of the right bed frame is pivotally connected to a right bed frame rotating mechanism 12, which can drive the right bed frame flip-up bed board to rotate to form an angle that adapts to individual ergonomic requirements. The hinges can be made of engineering plastics, such as PEEK, PE, carbon fiber reinforced PA, etc.

[0038] The right bed frame refers to the frame assembly that supports the bed structure. It can be constructed using welded or bolted metal profiles to form a rigid support structure, used to fix the bed board and the rotating mechanism. The fixed right bed board is the immovable part of the bed board rigidly connected to the top of the right bed frame. It can be fixed using bolts or welding to form the basic support surface of the bed. The folding right bed board is the movable part of the bed board that is hinged to the fixed right bed board. It can be connected using hinges or shafts to allow for angle adjustment around the hinge point. The rotating mechanism of the right bed is the power component that drives the folding bed board to rotate. It can use an electric actuator as the actuating element, converting linear motion into rotational motion through a linkage mechanism.

[0039] Specifically, the right bed frame serves as the basic load-bearing structure. Its top plane is fixedly connected to a permanent bed board, while an adjacent, rotatable flip-up bed board is installed. The flip-up bed board's angle is adjusted via a bottom-pivoted rotating mechanism. When the electric actuator in the rotating mechanism is activated, it pushes a transmission component connected to the flip-up bed board, causing the board to rotate around its hinge axis, thus changing the tilt angle of a localized area of ​​the bed. This structure, by dividing the bed into fixed and movable parts, achieves localized adjustment while maintaining the stability of the basic support.

[0040] Furthermore, the right bed frame includes a set of symmetrically arranged right bed frame main beams 111 and a set of right bed frame secondary beams 112 and right bed frame middle secondary beams 113 fixed perpendicular to the right bed frame main beams 111, forming a right rectangular frame; at least one set of right bed frame reinforcing support beams 114 are provided in the right rectangular frame, and two right middle crossbars 115 are provided between the right bed frame reinforcing support beams and the right bed frame secondary beams, and a right bed electric cylinder bracket 116 is eccentrically fixed on the right bed frame secondary beams 112.

[0041] For a simply supported beam (a beam supported at both ends), the location of the stress point directly affects the maximum bending moment. The core of eccentric design is to reduce the maximum bending moment of the simply supported beam by decreasing the product of the distances from the stress point to the two supports (a*b), so that the bending stress is less than or equal to the allowable stress of the material (140MPa for Q235 steel). Specific calculations are as follows: Fixed support beam: span 642mm, force 5000N, the calculated stress point needs to be deviated from the midpoint by ≥229.4mm (i.e. a≤91.6mm or a≥550.4mm).

[0042] Rotary support beam: span 562mm, force approximately 22969N, the force point must be deviated from the midpoint by ≥263.3mm (i.e. a≤17.7mm or a≥544.3mm).

[0043] This eccentric design allows the maximum bending stress to be controlled within the allowable stress range of Q235 steel, achieving "no deformation".

[0044] The right bed frame main beam is a load-bearing component extending along the length of the bed frame. It can be constructed using channel steel or I-beam profiles and is used to build the main frame structure and bear longitudinal loads. The right bed frame secondary beam is a transverse support perpendicular to the main beam. It can be made of welded rectangular steel pipes and is used to reduce bending moment and enhance deformation resistance. The rectangular horizontal main beam can evenly transfer the load to the two vertical secondary beams, which then transfer it downwards, avoiding complex stress flow within the frame. The right bed frame middle secondary beam is an auxiliary support beam located in the middle area of ​​the frame. It can be made of profiles with the same cross-section as the secondary beams and set parallel to them. Its bending stiffness constrains lateral deformation and prevents lateral bending during transportation. The width-to-height ratio of the rectangle is 2-3:1, improving bending resistance by 4-9 times. It is easy to position and suitable for mass production. The rotating beam has the same width-to-height ratio. The right bed frame reinforcing beam is a supporting structure connecting the main beam and the secondary beam. It can be made of welded angle steel. The right center crossbar is a horizontal connector placed between the reinforcing beam and the secondary beam. The right bed electric cylinder bracket refers to the mounting base fixed on the sub-beam. Specifically, it can be made of steel plate with bolt holes, which is stamped and formed to accurately position the drive unit and achieve a rigid connection with the frame.

[0045] Furthermore, the right bed rotation mechanism includes a right bed main rotating beam 121, a right bed auxiliary rotating beam 122, a right bed main rotating beam support 123, a right bed rotating electric cylinder 124, and a right bed rotating mechanism roller 125. A right bed auxiliary rotating beam 122 is fixedly connected to each end of the right bed main rotating beam 121. The right bed main rotating beam support 123 is eccentrically fixed to the right bed main rotating beam 121. At least one right bed rotating mechanism roller 125 is rotatably connected to the right bed auxiliary rotating beam 122. The right bed auxiliary rotating beam 122 is rotatably connected to the right middle crossbar. A right bed rotating electric cylinder is installed between the right bed main rotating beam support and the right bed electric cylinder support. This design utilizes a combination of main and auxiliary rotating beams and roller transmission, resulting in uniform force distribution and reliable angle locking. The rollers contact the bed board, reducing frictional loss. The middle crossbar and electric cylinder support ensure the installation accuracy of the drive mechanism.

[0046] The right bed main rotating beam is a transverse rigid component that serves as the core support for the rotating mechanism. It can be made of welded rectangular steel tubing and connects the auxiliary rotating beams on both sides, transmitting the driving force of the electric cylinder. The right bed auxiliary rotating beams are extensions symmetrically positioned at both ends of the main rotating beam. They can be made of bent L-shaped steel plates and support the rollers, forming a rotation fulcrum. The right bed main rotating beam support is a connector fixed to the main rotating beam. It can be made of steel plates with hinge holes, forming a movable connection with the electric cylinder. With the same modulus of inertia, eccentric reinforcement enhances the bending moment (reducing the lever arm) and lowers stress. The right bed rotating electric cylinder is a power element that provides linear driving force, directly driving the main rotating beam to rotate around the central crossbar through telescopic movement. The roller of the right bed rotating mechanism refers to the rolling component installed at the end of the auxiliary rotating beam. Specifically, it can adopt a nylon-coated bearing structure, or a rubber wheel (inexpensive and shock-absorbing) or urethane (high performance and cushioning) to contact the bottom of the flip bed board and reduce frictional resistance. The contact surface between the roller of the first bed rotating mechanism and the flip bed board can be spherical, cylindrical or flat, which correspond to point contact, line contact and surface contact, respectively.

[0047] In a more detailed design, the vertical height of the hinge point between the right bed main rotating beam support and the right bed rotating electric cylinder is higher than the vertical height of the hinge point between the right bed rotating electric cylinder and the right bed electric cylinder support.

[0048] In a more detailed design, when the telescopic rod of the right bed rotating electric cylinder extends, it enables the right bed auxiliary rotating beam to rotate so that the rollers of the right bed rotating mechanism abut against the bottom of the right bed flip-up board.

[0049] In a more detailed design, the top of the right bed auxiliary rotating beam near the roller of the right bed rotating mechanism has an inclined surface 1221. When the telescopic rod of the right bed rotating electric cylinder is extended to its maximum, the inclined surface remains parallel to the right bed flip-up board.

[0050] The inclined surface refers to the top surface near the roller end being machined into an inclined plane. This inclination angle can be formed by cutting or welding. In the current design, the inclined surface angle is 9°, which is related to the lever arm. The inclined plane does not contact the bed board; it is the rollers that make contact.

[0051] During operation, the electric cylinder for rotating the right bed pushes the roller of the right bed rotating mechanism against the bottom of the right bed flip panel and pushes the right bed flip panel to rotate around the hinge axis, thereby obtaining a precisely controlled angle required by the human body.

[0052] In at least one embodiment, the left bed body 2 includes a left bed frame 21, a left bed fixed board 23 is fixedly connected to the top of the left bed frame, a left bed flip board 24 is rotatably connected to the top of the left bed frame, the left bed flip board 24 includes a set of pivotally connected left bed main flip board 241 and left bed auxiliary flip board 242, and a left bed rotating mechanism 22 is pivotally connected to the bottom of the left bed frame, the left bed rotating mechanism can drive the left bed flip board to rotate to form an angle that adapts to individual human body requirements.

[0053] The left bed frame refers to a rectangular support frame composed of symmetrical main beams and vertical secondary beams, which can be assembled by welding or bolting, and is used to support the fixed bed board and the folding bed board. The fixed bed board of the left bed is the immovable bed surface rigidly connected to the top of the bed frame, and can be made of wood or composite materials, providing stable support in the folded state. The folding bed board of the left bed is a rotatable assembly formed by the main folding bed board and the auxiliary folding bed board pivotally connected by hinges, and can be made of segmented panels with hinges for folding. The left bed rotating mechanism is a power unit including an electric drive unit and transmission structure, and can be an electric cylinder driving a rotating beam to drive rollers to push the folding bed board to rotate.

[0054] Furthermore, the top of the left bed frame is rotatably connected to the left bed main flip-up board 241, and the left bed main flip-up board 241 is rotatably connected to the left bed auxiliary flip-up board 242.

[0055] Furthermore, the left bed frame includes a set of symmetrically arranged left bed frame main beams 211 and a set of left bed frame secondary beams 212 and left bed frame middle secondary beams 213 fixed perpendicular to the left bed frame main beams 211, forming a left rectangular frame; at least one set of left bed frame reinforcing support beams 214 are provided in the left rectangular frame, and two left middle crossbars 215 are provided between the left bed frame reinforcing support beams and the left bed frame secondary beams; a left bed electric cylinder bracket 216 is eccentrically fixed on the left bed frame secondary beams 112; a set of parallel tie rods 217 are symmetrically arranged on both sides of the left bed frame 21 and pivotally connected to the left bed frame main beams 211; the other end of the tie rods 217 is pivotally connected to a wooden board connecting piece 218; the wooden board connecting piece is fixedly connected to the left bed auxiliary flip-up bed board.

[0056] The symmetrical arrangement of the left bed frame main beams refers to two main beams arranged in parallel to form the longitudinal support foundation of the frame. This can be achieved by welding rectangular steel pipes to construct a stable rectangular frame structure. The left bed frame reinforcing beam is a reinforcing component that connects the main beam and the secondary beam laterally, improving the frame's bending resistance. The left center crossbar is a transverse connector between the reinforcing beam and the secondary beam. The left bed body electric cylinder bracket is a mounting base fixed to the secondary beam, which can be achieved by welding steel plates with positioning holes. The parallel pivot connection of the tie rods to the main beams refers to two sets of rotatable connecting rods symmetrically arranged on both sides of the frame, which can be achieved by hinge connections to transmit the movement trajectory of the flip-up bed board. The wooden board connecting piece is a transition piece connecting the tie rods and the auxiliary flip-up bed board, which can be achieved by riveting metal sheets with mounting holes to simplify the assembly process of the auxiliary flip-up bed board and the frame.

[0057] Furthermore, the left bed rotating mechanism includes a left bed main rotating beam 221, a left bed auxiliary rotating beam 222, a left bed main rotating beam support 223, a left bed rotating electric cylinder 224, and a left bed rotating mechanism roller 225; a left bed auxiliary rotating beam is fixedly connected to each end of the left bed main rotating beam, a left bed main rotating beam support is eccentrically fixed on the left bed main rotating beam, and a left bed rotating mechanism roller is rotatably connected to the left bed auxiliary rotating beam; the left bed auxiliary rotating beam is rotatably connected to the left middle crossbar, and a left bed rotating electric cylinder is installed between the left bed main rotating beam support and the left bed electric cylinder support.

[0058] The left bed main rotating beam is the main load-bearing component arranged transversely at the bottom of the left bed frame. It can be formed by welding rectangular steel tubing and is used to transmit rotational driving force and maintain structural rigidity. The left bed auxiliary rotating beam is an extension component symmetrically distributed at both ends of the main rotating beam. It can be made of U-shaped channel steel bolted to the main beam to form double support points to improve rotational stability. The left bed main rotating beam support is a connecting component vertically welded to the main rotating beam. It can be a triangular steel plate reinforcement structure used to establish a hinged fulcrum between the electric cylinder and the main rotating beam. The left bed rotating mechanism roller is a movable component installed at the end of the auxiliary rotating beam. It can be a nylon-coated bearing wheel used to contact the bottom surface of the flip-up bed board and reduce frictional resistance.

[0059] In a more detailed design, the vertical height of the hinge point between the left bed main rotating beam support and the left bed rotating electric cylinder is higher than the vertical height of the hinge point between the left bed rotating electric cylinder and the left bed electric cylinder support.

[0060] During operation, the left bed rotating electric cylinder pushes the roller of the left bed rotating mechanism against the bottom of the left bed main flip board and pushes the left bed main flip board to rotate around the hinge. At the same time, the left bed auxiliary flip board is linked by the pull rod.

[0061] In at least one embodiment, a safety fixing connection block 4 is provided between the right bed frame 1 and the left bed frame 2. The safety fixing connection block 4 is fixedly connected to the secondary beam 113 of the right bed frame and the secondary beam 213 of the left bed frame. During use, the right bed frame 1 and the right bed frame 2 are integrated. When packaging and transporting, the right bed frame 1 and the left bed frame can be folded by removing the bolts of the safety fixing connection block 4.

[0062] Furthermore, the right bed frame sub-beam 112, the left bed frame sub-beam 212, and the safety fixing connection block 4 are equipped with bed legs 5; the bed legs are components that support the bed body in contact with the ground, and can specifically be height-adjustable metal support columns to adapt to different ground flatness. The bed legs 5 on the safety fixing connection block 4 make the connection between the right bed body 1 and the left bed body 2 more robust and effective during use.

[0063] The solution is further refined, with the safety fixing connection block having bed leg fixing holes and being equipped with bed legs.

[0064] Furthermore, the right bed frame 11 and the left bed frame 21 are symmetrically or staggeredly provided with buffer pads on the same side plane relative to the folding mechanism to ensure that the right bed body 1 and the left bed body 2 are not damaged after folding. The buffer pads are elastic material layers set on the contact surfaces of the bed frames, specifically rubber or silicone, used to absorb the impact force during the folding process and reduce noise.

[0065] Symmetrical arrangement of the cushioning pads increases their thickness, while staggered arrangement allows for a larger contact area. During use, adding cushioning pads to the top of the bed frame helps to buffer and reduce noise when the bed board moves and contacts the bed frame.

[0066] In at least one embodiment, the folding adhesive-free mattress includes a side cover 41, a comfort layer 42, a surface layer 43, a foam support layer 44, and a bottom layer 45. The side cover is divided into an upper cavity 411 and a lower cavity 412 by a fabric spacer layer 4111. The lower cavity is split in the middle in the width direction to form a left lower cavity 4121 and a right lower cavity 4122 that can be folded along the middle of the fabric spacer layer. The upper edge of the upper cavity and the lower edges of the left and right lower cavities are respectively provided with a zipper. A comfort layer 42 is placed inside the body, and a surface layer 43 is placed on top of the comfort layer. A sponge support layer 44 with a zippered fabric cover is provided in the lower left cavity and the lower right cavity respectively. The surface layer and the comfort layer adopt a glue-free process. The comfort layer is simply fixed by a zipper or stacked without fixation. The surface layer adopts a quilting process and is connected to the upper cavity after sewing an open zipper. The bottom layer includes two pieces, a left bottom layer 451 and a right bottom layer 452, which are connected to the bottom of the lower left cavity and the lower right cavity after quilting and sewing an open zipper.

[0067] The fabric spacer layer refers to a textile material layer that divides the interior of the side sleeve into two independent spaces. This can be made of polyester or cotton fabric and sewn together to create a physical barrier, distinguishing different functional areas. The open-end zipper refers to a two-way zipper structure that can be separated at both ends, such as a YKK double-ended zipper, allowing complete separation of the top layer from the side sleeve. The glue-free process means that the material layers are not fixed with chemical adhesives; for example, layer positioning is achieved through quilting stitches or physical snaps. The quilting process refers to using sewing thread to penetrate and fix multiple layers of material, such as using an overlock machine to bind and sew the edges of the top and bottom layers.

[0068] Compared to existing technologies, traditional mattresses use a one-piece glued structure that cannot be disassembled for cleaning and poses a risk of formaldehyde release. This solution eliminates chemical adhesive pollution through a modular cavity structure and glue-free connection method, allowing each component to be independently disassembled and maintained. Existing technologies often result in mattresses breaking at folds; this solution uses fabric spacers to guide the fold lines, combined with a staggered, irregularly shaped groove design in the foam support layer, reducing bending resistance during use, preventing shifting or bulging, and maintaining the mattress's aesthetic appearance.

[0069] Through the above technical solutions, this application achieves environmentally friendly production of mattresses with zero glue, avoiding the volatilization of harmful substances. Each functional layer can be individually disassembled, washed, and replaced, solving the problem of difficult cleaning of traditional mattresses. The split-folding structure reduces transportation volume by 50%, lowering logistics costs. The independent encapsulation design of the foam support layer and the fabric cover ensures support while preventing material wear. The zipper connection method improves mattress maintenance efficiency; for example, the time required to replace the comfort layer can be reduced from 30 minutes to 5 minutes.

[0070] Furthermore, the comfort layer includes at least three layers of soft material 421 with different materials and hardness, and the order of each layer can be interchanged to adapt to different sleeping needs of the human body. The materials of the soft material layers are selected from slow rebound sponge, Q elastic cotton, MINI spring, latex, gel materials and combinations thereof.

[0071] The comfort layer refers to the multi-layered structure beneath the mattress surface, providing support and cushioning to conform to the body's curves. This can be achieved by layering different materials, with adhesive-free stacking between layers to prevent the release of harmful substances. The soft material layer consists of flexible materials with varying moduli of elasticity. Specifically, it can use slow-rebound foam for pressure distribution, bouncy cotton for rebound support, mini springs for enhanced localized support, latex for improved breathability, and gel materials for temperature regulation, catering to different users' needs for firmness. The interchangeable order means that the material layers are not fixedly bonded; their positions can be adjusted using snaps or free stacking, thereby altering the overall firmness distribution. Specifically, the comfort layer consists of at least three independent materials, such as a slow-rebound foam layer, a bouncy cotton layer, and a latex layer stacked sequentially. Users can adjust the order of the layers according to their sleeping habits. When stronger lumbar support is needed, the MINI spring layer can be placed in the middle; if improved heat dissipation is required, the gel layer can be moved closer to the surface layer. The layers are physically stacked to form a stable structure, eliminating the need for glue and preventing formaldehyde release. Compared to existing technologies, traditional mattresses typically use a single material or a fixed layer sequence for their comfort layer, making it impossible to adjust the firmness distribution according to body shape or sleeping position. This solution, however, utilizes an interchangeable multi-layer structure, allowing the mattress to adapt to the personalized needs of different users. Furthermore, existing technologies using adhesive bonding processes can easily generate harmful gases; this solution employs a glue-free stacking method to eliminate health risks. Through the above technical solution, this application solves the problem of limited comfort caused by the fixed layer order of traditional mattresses, while avoiding the pollution risk caused by adhesive bonding. Users can obtain customized support effects and improve sleep quality by adjusting the order of material layers themselves.

[0072] Furthermore, the sponge support layer has at least one staggered groove 441 on the upper and lower surfaces along the turning center line of the right bed flip board, the left bed main flip board, and the left bed auxiliary flip board of the folding electric bed. The depth of the groove is 1 / 3 of the thickness of the sponge support layer, and the distance between the connecting edges of the grooves is greater than 2.5 cm to ensure connection strength and reduce bending resistance.

[0073] Furthermore, both the top layer and the side sleeve are equipped with zipper heads. When the top layer and the side sleeve are closed, the zipper heads are positioned opposite each other, and the zipper heads can stay in any position when closed. Pulling them in the opposite direction can separate the top layer and the side sleeve, which is convenient for storage, replacement, drying, and adding electrical performance functional layers.

[0074] Among them, the staggered irregular groove refers to the irregular groove structure located on the upper and lower surfaces of the sponge support layer and staggered along the direction of the flip center line. The maximum width of the staggered irregular groove is 1~2.5CM. In order to avoid wrinkles, the irregular staggered irregular groove is a combination of V-shaped and arc groove. The arc is located at the connection point of the sponge support layer. The V-shaped design can prevent wrinkles, and the arc design can avoid stress concentration.

[0075] Specifically, this can be achieved using mold cutting or hot pressing processes. Its staggered layout disperses folding stress, preventing material fatigue and fracture. The "connecting edge distance greater than 2.5cm" refers to the width of the ungrooved area between adjacent irregular grooves, which can be achieved by adjusting the groove spacing parameters. This design maintains sufficient support strength to prevent localized collapse during folding. The "zipper head-to-head" configuration means that after the zippers on the surface layer and side sleeves are closed, the zipper heads on both sides are at the same end and facing each other. This can be achieved using a two-way zipper structure, allowing users to easily detach the zipper from any position. Specifically, the sponge support layer forms a flexible folding area through staggered grooves on its upper and lower surfaces. During the folding process of the electric bed, the grooves guide the sponge layer to bend along a preset path, reducing stress concentration within the material. The set material edge distance ensures stable support in non-grooved areas during folding, preventing structural deformation due to insufficient groove spacing. The zippers for the surface layer and side sleeves use an opposing zipper head design, allowing users to operate the zipper head with one hand and slide it freely to any position, enabling quick disassembly or partial separation of the surface layer. When adding electric heating or sensor monitoring equipment, it facilitates the exit of cables from between the two zipper heads at any position. In some specific implementations, the cross-sectional shape of the irregular groove can be wavy, serrated, or trapezoidal. For example, using a wavy groove can further reduce folding resistance; the zipper head can be configured with anti-slip texture or enlarged in size to improve ease of operation. Furthermore, self-lubricating and wear-resistant nylon pads are sandwiched between the rigid metal components connected in pairs to reduce wear and eliminate noise; all four sides of the fabric and cotton layers of the glue-free folding mattress are hemmed, and the edges of the sewing connections of the outer cover, surface layer, bottom layer and each soft material cover are fixed with exposed stitching to ensure aesthetics, sturdiness and smooth zipper operation.

[0076] Among them, self-lubricating wear-resistant nylon gaskets refer to non-metallic buffer materials placed at metal joints, specifically made of polyamide-based composite materials, which reduce wear and noise of parts by lowering the coefficient of friction. Overlock stitching refers to using a double-stitch process to treat the edges, which can be achieved using an industrial sewing machine, avoiding the use of glue and enhancing structural stability.

[0077] In at least one embodiment, the electronic control system includes a power supply 51, a control system 52, a wireless remote controller 53, a voice control box 54, and several connecting wires; the input end of the power supply is electrically connected to an external power inlet via a power connection wire, and the output end of the power supply is electrically connected to the power inlet of the control system via a connection wire; the control system has at least two control output interfaces, which are electrically connected to the control ends of the left bed rotating electric cylinder and the right bed rotating electric cylinder, respectively; the operating status of the left bed rotating electric cylinder and the right bed rotating electric cylinder can be controlled by the wireless remote controller and the voice control box.

[0078] Specifically, the electronic control system drives the electric cylinder according to preset angle parameters. When the user selects the viewing mode, the control system simultaneously adjusts the back and leg angles to 70° and 20°, respectively. This angle combination maintains the optimal viewing distance between the human chest cavity and the screen, while the slight elevation of the legs promotes blood circulation.

[0079] The folding electric bed features multiple operating modes, each with corresponding voice control. The headboard and footboard angles, and the angles used, are as follows: The angle data is derived from ergonomics, biomechanics, yoga instruction, the 2024 National Leisure Survey by the China Travel Research Institute, furniture industry research, and studies by the American Academy of Sleep Medicine and the American Heart Association on the principles of snoring and the physiological mechanisms of sleep breathing. For example: Sleep mode: headboard angle 0°-5° (0° used), footboard angle 0°-3° (0° used); Movie viewing mode: headboard angle 70°-80° (70° used), footboard angle 15°-20° (20° used); Relaxation mode: headboard angle 60°-80° (60° used), footboard angle 15°-30° (30° used).

[0080] The motor parameters corresponding to each angle are as follows: The mounting position and stroke of the 305 motor are as follows (note that the parameters may vary depending on the mechanism design). At 0°, the backrest has a stroke of 317 and a travel of 12, while the leg motor has a stroke of 2.5 and a travel of 307.5. At 5°, back stroke is 321, range of motion is 16; legs stroke is 312, range of motion is 7. At 10°, the back stroke is 327, the range of motion is 22, and the legs stroke is 318, the range of motion is 13. At 15°, the back stroke is 334, with a range of motion of 29, and the legs stroke is 326, with a range of motion of 21. At 20°, the back movement is 341.5 with a range of motion of 36.5, and the legs movement is 334 with a range of motion of 29. At 25°, the back stroke is 351 units with a range of motion of 46 units, and the legs stroke is 343 units with a range of motion of 38 units. At 30°, the back has a range of 360° and a range of 55°, while the legs have a range of 352° and a range of 47°. At 35°, the back stroke is 369, with a range of motion of 64, and the legs stroke is 362, with a range of motion of 57. At 40°, the back stroke is 378 with a range of motion of 73, and the legs stroke is 372 with a range of motion of 67. At 45°, the back stroke is 387, the range of motion is 82, and the legs stroke is 381, the range of motion is 76. At 50°, the back extension is 397 mm and the range of motion is 92 mm. At 55°, the back pressure is 405 mm and the range of motion is 100 mm. At 60°, the back extension is 414, and the range of motion is 109. At 65°, the back extension is 424, and the range of motion is 119. At 70°, the back stroke is 433, and the range of motion is 128.

[0081] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A split-type folding electric bed with a glue-free folding mattress, characterized in that, The device includes a right bed frame, a left bed frame, and a folding mechanism. The right bed frame and the left bed frame are connected by the folding mechanism and can be folded. The left bed frame is provided with a left limiting plate, and the right bed frame is provided with a right limiting plate. A folding glue-free mattress is placed on the left and right bed frames, and the folding glue-free mattress is located between the left and right limiting plates.

2. The split-type folding electric bed with a glue-free folding mattress according to claim 1, characterized in that, The right bed includes a right bed frame, a right bed frame fixedly connected to the top of the right bed frame, a right bed frame flip-up bed board rotatably connected to the right bed frame fixed bed board, and a right bed rotating mechanism pivotally connected to the bottom of the right bed frame, which can drive the right bed frame flip-up bed board to rotate.

3. The split-type folding electric bed with a glue-free folding mattress according to claim 2, characterized in that, The right bed frame includes a right middle crossbar and a right bed electric cylinder bracket. The right bed rotating mechanism includes a right bed main rotating beam, a right bed auxiliary rotating beam, a right bed main rotating beam bracket, a right bed rotating electric cylinder, and right bed rotating mechanism rollers. A right bed auxiliary rotating beam is fixedly connected to each end of the right bed main rotating beam. A right bed main rotating beam bracket is eccentrically fixed to the right bed main rotating beam. At least one right bed rotating mechanism roller is rotatably connected to the right bed auxiliary rotating beam. The right bed auxiliary rotating beam is rotatably connected to the right middle crossbar. A right bed rotating electric cylinder is installed between the right bed main rotating beam bracket and the right bed electric cylinder bracket.

4. The split-type folding electric bed with a glue-free folding mattress according to claim 1, characterized in that, The left bed frame includes a left bed frame, with a fixed left bed board fixedly connected to the top of the left bed frame. A flip-up left bed board is rotatably connected to the top of the left bed frame. The flip-up left bed board includes a set of pivotally connected main flip-up left bed board and auxiliary flip-up left bed board. The main flip-up left bed board is rotatably connected to the top of the left bed frame, and the auxiliary flip-up left bed board is rotatably connected to the main flip-up left bed board. A left bed rotating mechanism is pivotally connected to the bottom of the left bed frame, and the left bed rotating mechanism can drive the flip-up left bed board to rotate.

5. The split-type folding electric bed with a glue-free folding mattress according to claim 4, characterized in that, The left bed frame includes a left middle crossbar and a left bed electric cylinder bracket. The left bed rotating mechanism includes a left bed main rotating beam, a left bed auxiliary rotating beam, a left bed main rotating beam bracket, a left bed rotating electric cylinder, and a left bed rotating mechanism roller. A left bed auxiliary rotating beam is fixedly connected to each end of the left bed main rotating beam. A left bed main rotating beam bracket is eccentrically fixed to the left bed main rotating beam. A left bed rotating mechanism roller is rotatably connected to the left bed auxiliary rotating beam. The left bed auxiliary rotating beam is rotatably connected to the left middle crossbar. A left bed rotating electric cylinder is installed between the left bed main rotating beam bracket and the left bed electric cylinder bracket.

6. The split-type folding electric bed with a glue-free folding mattress according to claim 1, characterized in that, A safety fixing block is provided between the right bed frame and the left bed frame. The safety fixing block is fixedly connected to the secondary beam of the right bed frame and the secondary beam of the left bed frame. The safety fixing block is provided with bed leg fixing holes and equipped with bed legs.

7. The split-type electric folding bed with a glue-free folding mattress according to claim 3 or 5, characterized in that, The folding, glue-free mattress includes a side cover, a comfort layer, a top layer, a foam support layer, and a bottom layer. The side cover is divided into an upper cavity and a lower cavity by a fabric spacer. The lower cavity is split in the middle of its width to form a lower left cavity and a lower right cavity that can be folded along the middle of the fabric spacer. The upper edge of the upper cavity and the lower edges of the lower left and right cavities are equipped with open-end zippers. The comfort layer is placed inside the upper cavity, and the top layer is placed on top of the comfort layer. The lower left and right cavities are equipped with foam support layers wrapped in zippered fabric covers. The top layer and comfort layer are made using a glue-free process. The comfort layer is simply fixed with zippers or stacked without fixing. The top layer is quilted and sewn with an open-end zipper before being connected to the upper cavity. The bottom layer includes two pieces, a lower left bottom layer and a lower right bottom layer, which are quilted and sewn with an open-end zipper before being connected to the bottom of the lower left and lower right cavities. The zippers of the top layer and the side cover are both equipped with double-ended zippers and are set at opposite ends.

8. The split-type folding electric bed with a glue-free folding mattress according to claim 7, characterized in that, The comfort layer comprises at least three layers of soft materials with different textures and hardnesses, and the order of these layers can be interchanged. The materials of the soft material layers are selected from one or more of the following: slow rebound sponge, bouncy cotton, mini spring, latex, and gel.

9. The split-type folding electric bed with a glue-free folding mattress according to claim 8, characterized in that, The sponge support layer has at least one staggered groove on its upper and lower surfaces along the rotation center line of the right bed flip board, the left bed main flip board, and the left bed auxiliary flip board. The depth of the groove is 1 / 3 of the thickness of the sponge support layer, and the distance between the connecting edges of the grooves is greater than 2.5 cm. The maximum width of the staggered groove is 1~2.5 cm. The staggered groove is a combination of V-shaped and arc-shaped grooves, and the arc is located at the connecting point of the sponge support layer.

10. The split-type electric folding bed with a glue-free folding mattress according to claim 7, characterized in that, A self-lubricating and wear-resistant nylon gasket is sandwiched between the rigid metal parts that are connected in pairs. The four sides of the side sleeve, comfort layer, surface layer, sponge support layer and bottom layer are all locked and the edges of the sewn connection parts are all pressed with exposed stitches for fixation.

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