Electric bed structure

Abstract

An electric bed structure comprises a bed board erected and connected on a bed frame, the bed board comprises a back board and a leg board, the bottom of the back board and the bottom of the leg board are respectively provided with a driving device in a matched mode, each driving device comprises an electric push rod and a turnover supporting assembly, and each turnover supporting assembly comprises a supporting rod connected to the two ends of a turnover rod respectively. The lower ends of the supporting rods are pivoted to the two sides of the bed frame, the upper ends of the supporting rods are connected with rolling wheels, the two ends of the electric push rod are pivoted to the first motor support and the second motor support respectively, and reinforcing plates capable of being fixed to the turning rods and the bed frame rod pieces extend from the first motor support and the second motor support; the electric push rod pushes the first motor support to drive the turning rod to rotate, the turning rod drives the supporting rod to rotate so as to jack up the back plate and the leg plate to be obliquely lifted or laid flat, and the rolling wheels are supported on the bottom faces of the back plate and the leg plate and slide in the mode of being attached to the bottom faces of the back plate and the leg plate during lifting. The electric bed is stable in operation process and low in noise.

Description

Technical Field

[0001] This utility model relates to a bed frame, and more specifically to an electric bed structure. Background Technology

[0002] With the improvement of people's living standards, electric beds have become widely used. A typical electric bed structure includes a reversible bed board, a bed frame, and a drive motor, especially a push-rod motor. The bed board consists of multiple hinged panels. The drive motor is hinged to the bed frame, and by extending or retracting the motor's drive rod, it raises or lowers the bed board. Furthermore, multiple motors can be used to independently raise or lower the backrest, hips, or feet, meeting the needs of changing positions while lying in bed.

[0003] For the lifting and lowering of the bed board, in order to facilitate the extension of the electric push rod driven by the motor and to avoid the supporting weight being entirely borne by the electric push rod, some bed frames use electric push rods that lift the backrest or leg panels (these two panels generally need to be lifted). Taking the backrest as an example, one end of the electric push rod is connected to the bed frame along with the motor, and the other end is connected to the middle of a flip rod. Each end of the flip rod has a support rod with rollers. When the motor drives the electric push rod to start working, the electric push rod that moves the front leg or the backrest drives the flip rod to rotate. The flip rod drives the support rod to rotate around the flip rod as the axis of rotation in the direction of the corresponding support part. The rollers slide back and forth against the back of the backrest to assist in lifting and flattening the backrest, increasing the stability when the backrest is lifted.

[0004] In the aforementioned bed frame lifting structure, because the front end of the electric push rod is hinged to a connecting piece or U-shaped connecting block protruding from the tilting rod, and the part of the electric push rod connecting to the bed frame is within the connecting piece or connecting block, the stress point is concentrated, which easily causes deformation at the connection point. The tilting rod cannot be stably stressed during the pushing process of the electric push rod, and the electric push rod cannot easily and stably apply force. Furthermore, the rollers on the support rod directly contact the back of the backrest, and the rollers are prone to noise or abnormal sounds during rolling, affecting the user experience. Utility Model Content

[0005] The purpose of this invention is to provide an electric bed structure that is stable in operation and has low noise.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] An electric bed structure includes a bed board mounted on a bed frame. The bed board includes a backrest and leg panels that can be raised. A drive device is respectively fitted to the bottom of the backrest and leg panels. The drive device includes an electric push rod disposed within the bed frame and a tilting support assembly disposed below the bed board. The tilting support assembly includes a support rod connected to each end of a tilting rod. The lower ends of the support rods are pivotally connected to both sides of the bed frame, and the upper ends of the support rods are connected to rotatable rollers. The two ends of the electric push rod are pivotally connected to a first motor bracket and a second motor, respectively. On the support frame, the first motor bracket is fixed in the flip rod, and the second motor bracket is fixed on the bed frame rod. The first and second motor brackets have reinforcing plates that can be fixed to the flip rod and the bed frame rod. The electric push rod pushes the first motor bracket to rotate the flip rod, which in turn rotates the support rod to lift the back panel and leg panel, tilting or flattening them. The rollers on the support rod support the bottom surfaces of the back panel and leg panel and slide against the bottom surfaces of the back panel and leg panel during lifting and lowering. The rollers have rubber rings protruding from the wheel surface around their circumference.

[0008] Furthermore, the first motor bracket and the second motor bracket each include side connecting pieces extending from both sides of a connecting slot, and the side connecting pieces form a reinforcing plate; the two ends of the electric push rod are hinged in the connecting slot, and a pin is connected in the connecting slot of the first motor bracket and the second motor bracket respectively. The two pins pass through the two ends of the electric push rod, and a plastic bushing is provided at the pivot hole in the connecting slot for the pins to pass through. The plastic bushing is also sleeved on both ends of each pin.

[0009] Furthermore, the bottom surfaces of the back plate and leg plate are connected to strip-shaped rails corresponding to the movement paths of the rollers.

[0010] Furthermore, the slide rail forms a U-shaped groove, and the slide rail includes side guards on both sides of the strip-shaped track surface. The roller slides on the track surface and is restricted to the inside of the two side guards.

[0011] Furthermore, the backrest and legrests rise towards the center of the bed frame, and the drive devices for the backrest and legrests face opposite directions. The front end of the electric push rod is a telescopic end, which is inclined. The electric push rod extends forward and pushes upward at the same time. The flip rod flips upward as the electric push rod pushes forward, thereby causing the support rod to flip up.

[0012] Furthermore, in the drive device where the back plate is located, the middle of the support rod protrudes at an obtuse angle towards the bottom surface of the back plate, and a roller is connected to the upper end of the support rod. An auxiliary roller with the same structure as the roller is connected to the protruding part in the middle of the support rod.

[0013] Furthermore, the bed frame includes a bed frame frame, a bed board placed on the bed frame frame, the bottom surface of the bed frame frame is flat, and the bed board includes a back panel, a lumbar panel, a leg panel and a foot panel that are hinged together in sequence.

[0014] Furthermore, the footboard tilts up when the legboard is raised, and the inner side of the bed frame is provided with at least one support arm that supports the footboard when the legboard causes the footboard to tilt up.

[0015] Furthermore, the bed frame is connected to bed legs. The bed frame includes two horizontal bars and two vertical bars forming a rectangular frame. The second motor bracket is connected to the inside of the vertical bars. The lower end of the support rod is pivotally connected to the inside of the horizontal bar. Support blocks for supporting the bed board are also protruding from the top surfaces of the horizontal bars and vertical bars.

[0016] Furthermore, the back panel, waist panel, leg panel, and foot panel each form a bed frame. Each bed frame includes a support net connected to the upper plane of a rectangular outer frame, and multiple inner support rods are also connected inside the outer frame.

[0017] With the above structure, the electric bed of this utility model has the following advantages:

[0018] (1) The electric push rod drives the flip rod to rotate and then drives the support rod to lift the bed board or flatten it. The operation is convenient. The two ends of the electric push rod are hinged to the first motor bracket and the second motor bracket. The first motor bracket and the second motor bracket also have reinforcing plates on the outside. The reinforcing plates can increase the force-bearing area, so the force on the electric push rod will not be too concentrated, which protects the electric push rod and makes the pushing and rotating process more stable, thus extending the service life.

[0019] (2) At least one roller is provided on the support rod to support the bottom of the bed board and slide against the bottom surface of the bed board. By protruding a rubber ring on the roller surface, the noise generated during the sliding process can be reduced, thus improving the user experience.

[0020] (3) Plastic bushings are provided at the rotating connection points where the electric push rod is hinged to the first motor bracket and the second motor bracket at both ends. This can effectively reduce friction between metal parts, extend service life, and achieve a silent effect.

[0021] (4) The bottom surface of the bed frame forms a flat surface, which allows it to be placed directly on a flat surface (such as the ground) without the bed legs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the first embodiment of the present invention in a flat position;

[0023] Figure 2 This is a bottom view of the first embodiment of the present invention in a flat position;

[0024] Figure 3 This is a schematic diagram of the first embodiment of the present invention in use (the outer cover is omitted, the back panel and leg panels are raised, and the area below the back panel is shown).

[0025] Figure 4for Figure 3 A magnified view of a section at point A in the middle;

[0026] Figure 5 This is a schematic diagram of the first embodiment of the present invention in use (outer cover omitted, showing the area below the leg panel).

[0027] Figure 6 This is a side view of the first embodiment of the present invention in use.

[0028] Figure 7 This is a side view of the first embodiment of the present invention in use (back panel lowered).

[0029] Figure 8 This is a top view of the first embodiment of the present invention in its use state;

[0030] Figure 9 for Figure 8 A magnified view of a section at point B in the middle;

[0031] Figure 10 This is a schematic diagram of the usage state of the second embodiment of the present utility model.

[0032] Label Explanation:

[0033] 1. Bed frame; 11. Horizontal bar; 12. Vertical bar; 13. Support block; 14. Outer cover; 15. Bed end frame;

[0034] 2. Bed legs; 31. Backrest; 32. Lumbar support; 33. Legrest; 34. Footrest;

[0035] 41 Electric push rod; 411 Telescopic end; 412 Cylinder end; 4121 Connecting part; 42 Motor; 43 Second motor bracket; 431 Second connecting slot block; 432 Second side connecting piece;

[0036] 51 Flip bar; 52 Support rod; 521 Protrusion; 522 Reinforcing plate;

[0037] 53 Roller; 531 Rubber Ring; 54 First Motor Bracket; 541 First Connecting Slot Block; 542 First Side Connecting Plate;

[0038] 55. Rotary shaft; 551. Stopper; 56. Clamp; 57. Auxiliary roller; 61. Slatted track;

[0039] 621 Strip track surface; 622 Edge guard; 7 Support arm; 80 Support net; 81 Backrest frame;

[0040] 82. Lumbar support frame; 83. Leg support frame; 84. Foot support frame; 85. Internal support bar;

[0041] 91 Pin; 92 Plastic bushing. Detailed Implementation

[0042] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0043] Combination Figures 1 to 7 As shown, this utility model discloses an electric bed structure, including a bed board mounted on a bed frame 1. The bed frame includes a bed frame frame, and the bed board is mounted on the bed frame frame. In this embodiment, the bed frame frame includes two horizontal bars 11 and two vertical bars 12 forming a rectangular frame. Multiple support blocks 13 for supporting the bed board are also protruding from the top surfaces of the horizontal bars 11 and vertical bars 12. The bed board includes a backrest panel 31 and a leg panel 33 that can be erected. In this example, the bed board includes a backrest panel 31, a lumbar panel 32, a leg panel 33, and a foot panel 34 that are hinged sequentially. The lumbar panel 32 may include at least one middle panel that supports or is connected to the bed frame. In this embodiment, the lumbar panel 32 includes two panels. The outer edges of the two panels are respectively hinged to the backrest panel 31 and the foot panel 32, and the inner edges of the panels are movably connected to facilitate the separation of the bed board into two parts. Making the bottom surface of the bed frame flat allows the bed frame to be placed directly on a flat surface (such as the ground) without the need for bed legs, making it more convenient to use. In this embodiment, multiple bed legs 2 are connected to the bed frame frame, with the bed legs 2 connected to the sides and the middle of the bed frame frame respectively.

[0044] A soft padding (not shown in the figure) and a flexible cover 14 can also be connected to the outside of the bed board to cover the bed board, making the bed surface flatter. A bed end frame 15 can also be detachably connected to the footboard 34, and the bed end frame 15 can be movably connected to the footboard 34 by plugging and unplugging.

[0045] To enable the sections of the bed board supporting the head, back, and legs to rise and fall, drive devices are respectively installed at the bottom of the backrest 31 and legrest 33 to raise or lower them. The drive devices include an electric push rod 41 installed within the bed frame and a tilting support assembly installed below the bed board. The tilting support assembly includes a support rod 52 connected to each end of a tilting rod 51. The support rods 52 at both ends of the tilting rod 51 are symmetrical. The lower ends of the support rods 52 are pivotally connected to both sides of the bed frame, and are pivotally connected to the inner side of the crossbar 11. Rotatable rollers 53 are connected to the upper ends of the support rods 52. The two ends of the electric push rod 41 are pivotally connected to a first motor bracket 54 and a second motor bracket 43, respectively. The first motor bracket 54 is fixed in the tilting rod 51, and the second motor bracket 43 is fixed to the rod of the bed frame 1. In this embodiment, the second motor bracket 43 is connected to the inner side of the longitudinal rod 12. In this invention, the first motor bracket 54 and the second motor bracket 43 respectively extend reinforcing plates that can be fixed to the flip rod 51 and the bed frame rod (longitudinal rod 12). In this embodiment, the first motor bracket 54 includes first side connecting pieces 542 extending from both sides of a first connecting groove block 541 located in the middle, so that the portion of the first connecting groove block 541 that contacts the flip rod 51 and the first side connecting pieces 542 can be connected or welded to the flip rod 51; the second motor bracket 43 includes second side connecting pieces 432 extending from both sides of a second connecting groove block 431, so that the portion of the second connecting groove block 431 that contacts the longitudinal rod 12 and the second side connecting pieces 432 can be connected or welded to the longitudinal rod 12. The two first side connecting pieces 542 form the reinforcing plates of the first motor bracket 54, and the two second side connecting pieces 432 form the reinforcing plates of the second motor bracket 43. By adding reinforcing plates to the first or second motor bracket, the connection area is increased and the rigidity is improved. This disperses the force at the connection point of the two ends of the electric push rod on the first motor bracket 54 or the second motor bracket 43, so that the force on the electric push rod 41 will not be too concentrated, thus better protecting the electric push rod and the motor, and making the movement process more stable.

[0046] The drive unit also includes a motor 42, and the electric push rod 41 is driven and controlled by the motor 42 to achieve extension and retraction. The two ends of the electric push rod 41 form a telescopic end 411 and a cylinder end 412. The telescopic end 411 is located at the front end, and the cylinder end 412 is located at the rear end. The motor 42 can be located on the side of the cylinder end 412. The telescopic end 411 is hinged in the first connecting slot 541 of the first motor bracket 54, and the tail end of the cylinder end 412 is hinged in the second connecting slot 431 of the second motor bracket 43. The electric push rod 41 pushes the first motor bracket 54 to drive the flip rod 51 to rotate. The flip rod 51 drives the support rod 52 to rotate to lift the back plate 31 and the leg plate 33. After being lifted, the back plate 31 is tilted for support, or after being lowered, it is laid flat. The rollers 53 on the support rod 52 support the bottom surface of the back plate 31 and the leg plate 33, and can slide against the bottom surface of the back plate 31 and the leg plate 33 when the back plate 31 and the leg plate 33 are raised and lowered. Meanwhile, a rubber ring 531 protruding from the wheel surface is provided around the wheel surface of the roller 53. Through the buffering effect of the rubber ring 531, the noise can be reduced when the roller 53 slides against the bottom surface of the back plate 31 and the leg plate 33.

[0047] Furthermore, combined with Figure 8 , Figure 9 As shown, since both ends of the electric push rod 41 are hinged in the first connecting slot 541 and the second connecting slot 431, a pin 91 is connected to each of the connecting slots (541, 431) of the first motor bracket 54 and the second motor bracket 43. The two pins 91 pass through both ends of the electric push rod 41 (the telescopic end 411 and the tail end of the cylinder end 412). A plastic bushing 92 is provided at the pivot hole in the connecting slot (541, 431) through which the pins 91 pass, and the plastic bushing 92 is fitted on both ends of each pin 91. A connecting part 4121 can protrude from the tail of the cylinder end 412, and the pin 431 passes through the connecting part 4121, which is hinged in the second motor bracket 43. By hinged both ends of the electric push rod 41 to the second motor bracket 54 and the second motor bracket 43, the installation of the electric push rod 41 is made easier, and both ends of the electric push rod are more flexible. Meanwhile, plastic bushings are provided at both ends of the electric push rod 41 at the rotational connection points where it is hinged to the first motor bracket and the second motor bracket. This can effectively reduce friction between metal parts, extend service life, and achieve a silent effect.

[0048] The roller 53 can be made of plastic. The roller 53 can be connected to the end of the support rod 52 via a rotating shaft 55. The rotating shaft 55 can be a metal shaft. When the rotating shaft 55 fixes the roller 53, one end of the rotating shaft 55 forms a stop 551. The other end of the rotating shaft 55 can limit the roller via a clip 56. The clip 56 passes through the rotating shaft 55 and is positioned on the rotating shaft 55.

[0049] To facilitate the sliding of the roller 53, strip-shaped rails are connected to the bottom surfaces of the back plate 31 and the leg plate 33 corresponding to the movement trajectory of the roller 53, allowing the roller 53 to roll along the rails. Figure 3 As shown, the slide rail can be directly formed into a strip-shaped slat track 61. Further, as... Figure 10 As shown, the slide rail can form a U-shaped groove 62, that is, the slide rail includes two sides of the strip-shaped track surface 621 with flanges 622, so that the roller 53 slides on the track surface 621 and is restricted to the inside of the two flanges 622, restricting the sliding trajectory of the roller 53 and preventing the roller 53 from deviating.

[0050] Combination Figure 3 , Figure 6 , Figure 7 As shown, in the drive device where the back panel 31 is located, the middle part of the support rod 52 protrudes towards the bottom surface of the back panel 31, forming a bend. The middle part of the support rod 52 protrudes towards the bottom surface of the back panel at an obtuse angle. A roller 53 is connected to the upper end of the support rod 52, and an auxiliary roller 57 with the same structure as the roller 53 is connected to the protruding part 521 in the middle of the support rod 52. Since the back panel 31 requires a large flipping angle, the length of the support rod 52 supporting the back panel 31 will be relatively long. Bending this support rod 52 can increase the support strength, eliminating the need for welding a reinforcing plate. Furthermore, the roller 53 on the support rod 52 supporting the back panel 31 has a long sliding stroke. The added auxiliary roller 57 can overcome the resistance when the bed board flips (especially when it has just flipped to a certain angle). The auxiliary roller 57 first adheres to the back panel 31 to smoothly lift the back panel, and then after rising and pushing to a certain height, it switches to the roller 53, which precisely adheres to the bottom surface of the back panel, thus ensuring that the bed board flips smoothly. The upper end of the protrusion 521 in the middle of the support rod 52 can lift the back panel 31 when the support rod 52 is erected. This allows the two rollers on the support rod 52 (auxiliary roller 57 and roller 53) to successively contact the back panel 31. Because the distance between the auxiliary roller 57 and the rotation axis (the pivot point at the bottom of the support rod 52) is smaller than that of the roller 53, the torque of the auxiliary roller 57 is smaller (according to the torque formula M=F*L), requiring less effort and making it easier to lift. This ensures the smoothness and stability of the back panel 31 during its lifting stroke, preventing bed board vibration and improving the user experience. A reinforcing plate 522 can also be protruded from the middle of the support rod 52 on the side opposite to where the auxiliary roller 57 is installed. The reinforcing plate 522 can be formed by bending outwards from the middle of the support rod, increasing the support strength of the support rod 52.

[0051] like Figure 5 , Figure 6As shown, the footboard 34 tilts up when the legboard 33 is raised. At least one support arm 7 is provided on the inner side of the bed frame, which supports the footboard 34 when the legboard 33 causes the footboard 34 to tilt up. In this embodiment, a support arm 7 is connected to each side of the bottom of the footboard 34. The two support arms 7 are symmetrical, and the two ends of the support arms 7 are pivotally connected to the bottom surface of the footboard 33 and the inner side of the crossbar 11 in the bed frame, respectively.

[0052] Combination Figure 3 as well as Figure 5 , Figure 6 As shown, during bed board adjustment, for example, when it is necessary to lift the backrest 31 and legrest 33, the backrest 31 and legrest 33 stand upright towards the center of the bed frame, and the driving devices corresponding to the backrest 31 and legrest 33 are in opposite directions. The telescopic end of the electric push rod 41 is tilted. As the electric push rod 41 extends forward, it pushes upward. The flip rod 51 flips upward as the electric push rod 41 moves forward, causing the support rod 52 to flip upright. That is, the rotation direction of the flip rod 51 corresponds to the pushing direction of the electric push rod 41. When the front end of the electric push rod 41 moves outward and upward, the flip rod 51 flips outward. When the flip rod 51 below the backrest 31 rotates clockwise as the electric push rod 41 extends and pushes, it causes the support rod 52 to stand upright clockwise. Conversely, when the flip rod 51 below the legrest 33 rotates counterclockwise as the electric push rod 41 extends and pushes, it causes the support rod 52 to stand upright counterclockwise.

[0053] like Figure 10 As shown, this is another embodiment of the present invention. The main difference between this embodiment and the previous embodiment is that in this embodiment, the back panel 31, waist panel 32, leg panel 33, and foot panel 34 respectively form bed frames. Each bed frame is also mounted on a bed frame. Each bed frame is defined as a back bed frame 81, a waist bed frame 82, a leg bed frame 83, and a foot bed frame 84. Each bed frame includes a support net 80 connected to the upper plane of a rectangular outer frame. The bed frame supported by the net can reduce the weight of the bed, and the net structure relative to the bed board can avoid the electric push rod 41 and motor 42 below, thus reducing the overall height of the bed frame. Multiple inner support rods 85 are also connected to the outer frame of each bed frame. The inner support rods 85 can be formed into an H shape within the bed frame according to the bed frame, making the bed frame more stable. The back bed frame 81 is provided with a groove 62 for the rollers 53 to slide in.

[0054] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. An electric bed structure comprising a bed frame having a bed board connected thereto, the bed board comprising a back board and a leg board which are capable of being raised, the bottom portions of the back board and the leg board being fitted with drive means respectively, the drive means comprising an electric push rod provided in the bed frame and a turnover support assembly provided below the bed board respectively, characterized in that: The turnover support assembly comprises support rods connected to both ends of a turnover rod, the lower ends of the support rods are pivotally connected to both sides of the bed frame, the upper ends of the support rods are connected with rotatable rollers, both ends of the electric push rod are pivotally connected to the first motor support and the second motor support, the first motor support is fixed in the turnover rod, the second motor support is fixed on the rod of the bed frame, and the first motor support and the second motor support extend with a reinforcing plate which can be fixed on the turnover rod and the rod of the bed frame; the electric push rod drives the first motor support to rotate the turnover rod, the turnover rod drives the support rods to rotate to tilt and lift the back plate and the leg plate or flatten them, the rollers on the support rods are supported on the bottom surfaces of the back plate and the leg plate and slide on the bottom surfaces when lifting, and the wheel surface of the roller is provided with a rubber ring protruding from the wheel surface.

2. An electric bed structure as claimed in claim 1, characterized in that: The first motor support and the second motor support each comprise side connecting plates extending from both sides of a connecting groove block, and the two side connecting plates form the reinforcing plate; both ends of the electric push rod are hingedly connected in the connecting groove block, a pin shaft is connected in the connecting groove block of each of the first motor support and the second motor support, the two pin shafts pass through both ends of the electric push rod, and a plastic shaft sleeve is arranged at the pivot hole in the connecting groove block through which the pin shaft passes, and the plastic shaft sleeve is sleeved on both ends of each pin shaft.

3. An electric bed structure as claimed in claim 1, characterized in that: The bottom surface of the back plate and the leg plate is connected with a strip-shaped sliding rail corresponding to the movement track of the roller.

4. An electric bed structure as claimed in claim 3, characterized in that: The sliding rail forms a sliding groove with a U-shaped cross section, the sliding rail comprises two side connecting plates, the rollers slide on the track surface and are limited inside the two side connecting plates.

5. An electric bed structure as claimed in claim 1, characterized in that: The back plate and the leg plate are respectively erected towards the middle part of the bed frame, the directions of the corresponding driving devices of the back plate and the leg plate are opposite; the front end of the electric push rod is a telescopic end, the telescopic end is obliquely arranged, the electric push rod is simultaneously extended forward and pushed upward, and the turnover rod is turned upward to drive the support rods to be erected when the electric push rod is pushed forward.

6. An electric bed structure as claimed in claim 1 or 5, characterized in that: In the driving device of the back plate, the middle part of the support rod is protruded towards the bottom surface of the back plate at an obtuse angle, the upper end of the support rod is connected with a roller, and the protruded part of the middle part of the support rod is connected with an auxiliary roller which has the same structure as the roller.

7. An electric bed structure as claimed in claim 1, characterized in that: The bed frame comprises a bed frame box, the bed plate is arranged on the bed frame box, the bottom surface of the bed frame box is a plane, and the bed plate comprises a back plate, a waist plate, a leg plate and a foot plate which are sequentially hingedly connected.

8. An electric bed structure as claimed in claim 7, characterized in that: The foot plate is tilted when the leg plate is erected, at least one support arm is arranged on the inner side of the bed frame, and the support arm supports the foot plate when the leg plate drives the foot plate to be tilted.

9. An electric bed structure as claimed in claim 7, characterized in that: The bed frame box is connected with bed legs, the bed frame box comprises two horizontal rods and two vertical rods which form a rectangular frame, the second motor support is connected to the inner side of the vertical rod, the lower end of the support rod is pivotally connected to the inner side of the horizontal rod, and the top surfaces of the horizontal rod and the vertical rod are further provided with support blocks for supporting the bed plate.

10. An electric bed structure as claimed in claim 7, characterized in that: The back plate, the waist plate, the leg plate and the foot plate respectively form a bed frame body, each bed frame body comprises a support net connected in the plane of a rectangular outer frame body, and a plurality of inner support rods are further connected in the outer frame body.

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