Electric getting-up assisting bed

Abstract

The invention discloses an electric getting-up assisting bed, and relates to the technical field of medical instruments. The device comprises a bed frame, a groove is formed in the bed frame, a middle disc is movably arranged in the groove, an upper body plate and a lower body plate are arranged on the two sides of the middle disc respectively, two rectangular grooves are oppositely formed in the bottom of the middle disc, a supporting shaft and a rotating rod are rotationally arranged in the left rectangular groove and the right rectangular groove respectively, and the upper body plate is fixedly connected with the two ends of the supporting shaft; the lower body plate is fixedly connected with the two ends of the rotating rod, a second gear is arranged on the supporting shaft, and the lower side of the second gear is meshed with a first gear, so that the upper body plate can be conveniently adjusted to turn over relative to the middle disc, and the back of a patient is supported; a spline shaft is arranged on the inner side of the spline sleeve, the middle disc can be adjusted to rotate conveniently, meanwhile, the lower body plate is driven to overturn downwards relative to the middle disc, and the patient can get up conveniently.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an electric bed-assisting bed. Background Art

[0002] In the medical field, nursing beds are often used for sick people, severely disabled people, elderly people, and healthy people when they are hospitalized or treated at home for rehabilitation. Most nursing beds are overall fixed structures and do not have the function of assisting patients to get up. During the recuperation and nursing process, it is difficult for patients to get out of bed and move by themselves, and they need assistance from medical staff and family members. First, the patient's upper body is lifted up, and then the patient's legs are rotated out of the bed, which is more troublesome and greatly increases the workload of medical staff and family members. This process requires extremely high physical strength from medical staff and family members. At the same time, in the process of rotating the patient's legs, the patient is prone to leaning back and falling, causing great safety hazards. Some nursing beds with the function of assisting patients to get up only have the function of supporting the patient's back during use, and are unable to adjust the patient's body position. Moving the patient's legs out of the bed is inconvenient for the patient to get up, and the use effect is not good.

[0003] In response to this, we designed the electric bed-assist bed to solve the above problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention is an electric assisted bed, comprising a bed frame, a groove is provided on the bed frame, a middle disc is movably arranged in the groove, an upper body plate and a lower body plate are respectively arranged on both sides of the middle disc, two rectangular grooves are relatively provided at the bottom of the middle disc, a support shaft and a rotating rod are respectively rotatably arranged in the left and right rectangular grooves, both ends of the support shaft and the rotating rod pass through the middle disc, the upper body plate is fixedly connected to the two ends of the support shaft, the lower body plate is fixedly connected to the two ends of the rotating rod, a second gear is provided on the support shaft, a first gear is meshed on the lower side of the second gear, a spline sleeve is fixedly connected to the bottom of the middle disc, a linkage mechanism is provided between the spline sleeve and the rotating rod, and a spline shaft is provided on the inner side of the spline sleeve.

[0006] An annular groove is provided at the bottom of the groove, a movable ring is rotatably arranged in the annular groove, a plurality of cylinders are installed on the top of the movable ring, and the telescopic ends of the cylinders are fixedly connected to the bottom surface of the middle disc.

[0007] The linkage mechanism includes a support plate, a vertical pole, a first bevel gear, a second bevel gear and a transmission assembly. The cross-section of the support plate is an L-shaped structure, and the support plate is fixed to one side of the bottom of the middle disk. The vertical pole is rotatably arranged on the inner side of the support plate, the first bevel gear is fixed to the upper end of the vertical pole, and the second bevel gear is arranged on the rotating rod, and the first bevel gear is meshed with the second bevel gear.

[0008] A circular hole is passed through the center of the bottom of the groove, and the spline sleeve is movably matched with the circular hole. The transmission component is arranged between the spline sleeve and the vertical rod. The transmission component includes a pulley and a transmission belt. The two pulleys are respectively arranged on the spline sleeve and the vertical rod, and the transmission belt is arranged between the two pulleys.

[0009] A notch is provided on the front side of the bed frame, a movable block is movably arranged in the notch, a screw rod is provided at the bottom of the bed frame, a fourth gear is sleeved on the screw rod, a third gear is provided on the lower side of the outer wall of the spline shaft, the third gear is meshed with the fourth gear, a lifting plate is threadedly provided on the screw rod, a connecting rod is fixed between the lifting plate and the bottom of the movable block, the lifting plate is sleeved on the outside of the spline sleeve, and the lifting plate and the spline sleeve are movably matched, a guide rod is fixed on one side of the bottom of the bed frame, the guide rod passes through the lifting plate, and the lifting plate and the guide rod are slidably matched.

[0010] Two vertical plates are relatively fixed on one side of the bottom of the middle disk, and the two vertical plates are relatively arranged outside the rectangular groove on the left side. A support rod is rotatably arranged between the two vertical plates, and the first gear is arranged on the support rod. A motor is installed on the vertical plate on the rear side, and the output end of the motor is connected to the rear end of the support rod.

[0011] An L-shaped bracket is fixed to the rear side of the bottom of the bed frame, a partition is fixed on the inner side of the bracket, a servo motor is installed on the lower side of the partition, the output end of the servo motor is connected to the lower end of the spline shaft, and the lower end of the screw rod is rotatably connected to the bracket.

[0012] Two armrests are relatively fixed on the top of the middle disc, and two support blocks are relatively fixed on the inner side of the groove. The two support blocks cooperate with the bottom of the upper body board and the lower body board respectively, and the top of the bed frame is relatively provided with a head portion and a foot portion.

[0013] The present invention has the following beneficial effects:

[0014] The present invention facilitates to push the middle disc upwards through the cylinder, thereby driving the upper body plate and the lower body plate to move upwards out of the groove, wherein under the meshing action of the first gear and the second gear, combined with the rotation setting of the support shaft, it is convenient to adjust the upper body plate to flip relative to the middle disc, support the patient's back, and achieve the purpose of lifting the patient's upper body;

[0015] At the same time, with the cooperation of the spline shaft and the spline sleeve, combined with the connection between the servo motor and the lower end of the spline shaft, it is convenient to adjust the spline sleeve to rotate, which drives the middle disc to rotate, and then drives the lower body board to rotate toward the outside of the bed frame, so as to achieve the purpose of adjusting the patient's legs to the outside of the bed frame. At the same time, under the action of the linkage mechanism, it is convenient to adjust the lower body board relative to the middle disc to flip, drive the patient's legs to slowly lower, and achieve the purpose of assisting the patient to get up. There is no need for nursing staff to assist the patient to get up, which solves the problem that most of the existing nursing beds are overall fixed structures and do not have the function of assisting patients to get up. During the recuperation and nursing process, it is difficult for the patient to get out of bed and move by himself, and he needs the assistance of medical staff and family members, which is troublesome and increases the workload of medical staff and family members. In addition, this process requires extremely high physical strength from medical staff and family members. At the same time, in the process of rotating the patient's legs, the patient is prone to leaning back and falling, which causes great safety hazards. At the same time, it solves the problem that some nursing beds with auxiliary getting up function can only support the patient's back during use, and cannot adjust the patient's body position and move the patient's legs out of the bed, which is inconvenient for the patient to get up and has a poor use effect.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 A top view of the present invention;

[0020] Figure 3 for Figure 2 Structural diagram of the middle section AA;

[0021] Figure 4 for Figure 3 Schematic diagram of the structure of the middle section BB;

[0022] Figure 5 for Figure 3 Schematic diagram of the structure of CC in the middle section;

[0023] Figure 6 for Figure 3 Schematic diagram of the structure of DD in the middle section;

[0024] Figure 7 for Figure 3 Schematic diagram of the enlarged structure at E in the middle;

[0025] Figure 8 for Figure 3 The enlarged structural diagram at F in the middle;

[0026] Fig. 9 for Figure 5 Schematic diagram of the enlarged structure at G in the middle;

[0027] Fig.10 for Figure 6 Schematic diagram of the enlarged structure at H in the middle;

[0028] Fig.11 for Figure 1 A schematic diagram of the structure from another perspective;

[0029] Fig.12 This is a schematic diagram of the structure of the present invention for assisting a patient to stand up.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Bed frame; 2. Middle disc; 3. Upper body board; 4. Lower body board; 5. Rectangular groove; 6. Support shaft; 7. Rotating rod; 8. First gear; 9. Second gear; 10. Movable ring; 11. Cylinder; 12. Support plate; 13. Vertical rod; 14. First bevel gear; 15. Second bevel gear; 16. Transmission assembly; 17. Spline sleeve; 18. Spline shaft; 19. Movable block; 20. Screw; 21. Third gear; 22. Fourth gear; 23. Connecting rod; 24. Lifting plate; 25. Support rod; 26. Motor; 27. Bracket; 28. Servo motor; 29. ​​Armrest; 30. Support block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] See also Figure 1-Figure 12As shown, the present invention is an electric assisted-to-get-up bed, including an electric assisted-to-get-up bed, including a bed frame 1, a groove is provided on the bed frame 1, a middle disc 2 is movably arranged in the groove, an upper body plate 3 and a lower body plate 4 are respectively arranged on both sides of the middle disc 2, two rectangular grooves 5 are relatively provided at the bottom of the middle disc 2, a support shaft 6 and a rotating rod 7 are rotatably arranged in the left and right rectangular grooves 5, both ends of the support shaft 6 and the rotating rod 7 pass through the middle disc 2, the upper body plate 3 is fixedly connected to both ends of the support shaft 6, the lower body plate 4 is fixedly connected to both ends of the rotating rod 7, a second gear 9 is provided on the support shaft 6, a first gear 8 is meshed on the lower side of the second gear 9, a spline sleeve 17 is fixedly connected to the bottom of the middle disc 2, a linkage mechanism is provided between the spline sleeve 17 and the rotating rod 7, and a spline shaft 18 is provided on the inner side of the spline sleeve 17.

[0035] An annular groove is provided at the bottom of the groove, and a movable ring 10 is rotatably arranged in the annular groove. A plurality of cylinders 11 are installed on the top of the movable ring 10, and the telescopic ends of the cylinders 11 are fixedly connected to the bottom surface of the middle disc 2.

[0036] In the above structure, the cylinder 11 is used to push the middle disc 2 upward, thereby driving the upper body board 3 and the lower body board 4 to move upward out of the groove. Under the meshing action of the first gear 8 and the second gear 9, combined with the rotation setting of the support shaft 6, it is convenient to adjust the upper body board 3 to flip relative to the middle disc 2, support the patient's back, and achieve the purpose of lifting the patient's upper body. At the same time, with the mutual cooperation of the spline shaft 18 and the spline sleeve 17, it is convenient to drive the spline sleeve 17 to rotate, drive the middle disc 2 to rotate, and then drive the lower body board 4 to rotate toward the outside of the bed frame 1, so as to achieve the purpose of adjusting the patient's legs to move to the outside of the bed frame 1. At the same time, under the action of the linkage mechanism, it is convenient to adjust the lower body board 4 to flip relative to the middle disc 2, drive the patient's legs to slowly lower, and achieve the purpose of assisting the patient to get up.

[0037] The linkage mechanism includes a support plate 12, a vertical rod 13, a first bevel gear 14, a second bevel gear 15 and a transmission assembly 16. The cross-section of the support plate 12 is an L-shaped structure, and the support plate 12 is fixed to one side of the bottom of the middle disk 2. The vertical rod 13 is rotatably arranged on the inner side of the support plate 12. The first bevel gear 14 is fixed to the upper end of the vertical rod 13. The second bevel gear 15 is arranged on the rotating rod 7. The first bevel gear 14 is meshed with the second bevel gear 15. A circular hole passes through the center of the bottom of the groove. The spline sleeve 17 is movably matched with the circular hole. The transmission assembly 16 is arranged between the spline sleeve 17 and the vertical rod 13. The transmission assembly 16 includes a pulley and a transmission belt. The two pulleys are respectively arranged on the spline sleeve 17 and the vertical rod 13, and the transmission belt is arranged between the two pulleys.

[0038] A notch is provided on the front side of the bed frame 1, and a movable block 19 is movably provided in the notch. A screw rod 20 is provided at the bottom of the bed frame 1, and a fourth gear 22 is sleeved on the screw rod 20. A third gear 21 is provided on the lower side of the outer wall of the spline shaft 18, and the third gear 21 is meshed with the fourth gear 22. A lifting plate 24 is threadedly provided on the screw rod 20, and a connecting rod 23 is fixed between the lifting plate 24 and the bottom of the movable block 19. The lifting plate 24 is sleeved on the outside of the spline sleeve 17, and the lifting plate 24 is movably matched with the spline sleeve 17. A guide rod is fixed on one side of the bottom of the bed frame 1, and the guide rod penetrates The lifting plate 24 is inserted, and the lifting plate 24 and the guide rod are slidably matched. The threaded match between the lifting plate 24 and the screw rod 20 is convenient for adjusting the lifting plate 24 to move up and down. Combined with the connecting rod 23, the movable block 19 is driven to move downward, which is convenient for the lower body board 4 to rotate to the outside of the bed frame 1 and flip it downward, so as to achieve the purpose of assisting the patient to get up. The movable match between the lifting plate 24 and the spline sleeve 17, and the sliding match between the lifting plate 24 and the guide rod effectively limit and guide the lifting plate 24, thereby ensuring the stability of the movable block 19 moving up and down.

[0039] Two vertical plates are relatively fixed on one side of the bottom of the middle disk 2. The two vertical plates are relatively arranged outside the rectangular groove 5 on the left side. A support rod 25 is rotatably arranged between the two vertical plates. The first gear 8 is arranged on the support rod 25. A motor 26 is installed on the vertical plate on the rear side, and the output end of the motor 26 is connected to the rear end of the support rod 25.

[0040] An L-shaped bracket 27 is fixed to the rear side of the bottom of the bed frame 1, a partition is fixed inside the bracket 27, a servo motor 28 is installed on the lower side of the partition, the output end of the servo motor 28 is connected to the lower end of the spline shaft 18, and the lower end of the screw rod 20 is rotatably connected to the bracket 27.

[0041] Two armrests 29 are relatively fixed on the top of the middle disc 2, which makes it convenient for the patient to get up. Two support blocks 30 are relatively fixed on the inner side of the groove. The two support blocks 30 cooperate with the bottom of the upper body board 3 and the lower body board 4 respectively. The support blocks 30 effectively support the upper body board 3 and the lower body board 4, thereby ensuring the stability of the upper body board 3 and the lower body board 4 when they are in a horizontal state, making it convenient for the patient to lie down. A head portion and a foot portion are relatively arranged on the top of the bed frame 1.

[0042] Example:

[0043] In the initial state, the middle disc 2, the upper body board 3 and the lower body board 4 are all in a horizontal state, and the support blocks 30 on both sides play a supporting role at the bottom of the upper body board 3 and the lower body board 4 respectively. When it is necessary to assist the patient to stand up, the cylinder 11 is first started by the external control switch, and the cylinder 11 is extended. Under the active cooperation of the spline sleeve 17 and the round hole, and the mutual cooperation of the spline sleeve 17 and the spline shaft 18, the middle disc 2 is pushed to move upward, and at the same time, the upper body board 3 and the lower body board 4 are driven to move upward until the middle disc 2, the upper body board 3 and the lower body board 4 are out of the groove;

[0044] At this time, the motor 26 is started, and the support rod 25 is driven to rotate by the motor 26, which drives the first gear 8 to rotate. Under the meshing action of the first gear 8 and the second gear 9, combined with the rotation cooperation of the support shaft 6 and the middle disc 2, the upper body plate 3 is driven to flip upward relative to the middle disc 2, thereby achieving the purpose of lifting the patient's upper body;

[0045] Secondly, the servo motor 28 is started, and the spline shaft 18 is driven to rotate by the servo motor 28. Under the cooperation between the spline shaft 18 and the spline sleeve 17, combined with the rotation installation of the movable ring 10, the middle disc 2 is driven to rotate. With the rotation of the middle disc 2, the lower body plate 4 is driven to rotate toward the front side of the bed frame 1, and then the patient's legs are driven to move toward the outside of the bed frame 1;

[0046] During this process, under the action of the transmission component 16, combined with the rotation connection between the upright rod 13 and the support plate 12, the upright rod 13 is driven to rotate, and then the first bevel gear 14 is driven to rotate. The meshing action of the first bevel gear 14 and the second bevel gear 15, and the rotation connection of the rotating rod 7 and the middle disc 2, drive the lower body plate 4 to flip downward relative to the middle disc 2, and drive the patient's legs to slowly lower, so as to achieve the purpose of assisting the patient to stand up, without the need for nursing staff to assist the patient to stand up, which solves the problem that most of the existing nursing beds have an overall fixed structure and do not have the function of assisting patients to stand up. During the recuperation and nursing process, it is difficult for the patient to get out of bed and move by himself, and the medical staff and family members need to assist, which is troublesome and increases the workload of the medical staff and family members. In addition, this process requires extremely high physical strength from the medical staff and family members. At the same time, in the process of rotating the patient's legs, the patient is prone to fall backwards, causing great safety hazards. At the same time, it solves the problem that some nursing beds with auxiliary getting up function can only support the patient's back during use, but cannot adjust the patient's body position, move the patient's legs outside the bed, and are inconvenient for the patient to get up, resulting in poor use effect.

[0047] When the spline shaft 18 rotates, the third gear 21 is driven to rotate synchronously. Under the meshing action of the third gear 21 and the fourth gear 22, combined with the rotational connection between the screw rod 20 and the bracket 27, the screw rod 20 is driven to rotate. At the same time, the threaded cooperation between the lifting plate 24 and the screw rod 20, and the sliding cooperation between the lifting plate 24 and the spline sleeve 17 drive the lifting plate 24 to move downward stably. Under the action of the connecting rod 23, the movable block 19 is driven to move downward synchronously, so that the notch on the front side of the bed frame 1 is exposed, which is convenient for the flipping of the lower body board 4.

[0048] It should be further explained that the installation structure, connection method or setting method of each component in the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented. At the same time, the cylinder 11, motor 26 and servo motor 28 in the present invention are all purchased on the market, and those skilled in the art can install and wire them according to the requirements.

[0049] The installation of the control switch of the cylinder 11, the motor 26 and the servo motor 28 are all prior art and will not be described in detail here;

[0050] The middle disc 2 is provided with two avoidance grooves which are respectively matched with two ends of the upper body plate 3 to facilitate the turning of the upper body plate 3 .

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electric bed-assisting device, comprising a bed frame (1), characterized in that: The bed frame (1) is provided with a groove, in which a middle disc (2) is movably arranged, an upper body plate (3) and a lower body plate (4) are respectively arranged on both sides of the middle disc (2), two rectangular grooves (5) are arranged opposite to each other at the bottom of the middle disc (2), a support shaft (6) and a rotating rod (7) are respectively rotatably arranged in the left and right rectangular grooves (5), both ends of the support shaft (6) and the rotating rod (7) pass through the middle disc (2), the upper body plate (3) is fixedly connected to the two ends of the support shaft (6), the lower body plate (4) is fixedly connected to the two ends of the rotating rod (7), a second gear (9) is arranged on the support shaft (6), the lower side of the second gear (9) is meshed with a first gear (8), a spline sleeve (17) is fixedly connected to the bottom of the middle disc (2), a linkage mechanism is arranged between the spline sleeve (17) and the rotating rod (7), and a spline shaft (18) is arranged inside the spline sleeve (17).

2. The electric bed-assisting device according to claim 1, characterized in that: An annular groove is provided at the bottom of the groove, a movable ring (10) is rotatably arranged in the annular groove, a plurality of cylinders (11) are installed on the top of the movable ring (10), and the telescopic ends of the cylinders (11) are fixedly connected to the bottom surface of the middle disc (2).

3. The electric bed-assisting device according to claim 2, characterized in that: The linkage mechanism comprises a support plate (12), a vertical rod (13), a first bevel gear (14), a second bevel gear (15) and a transmission assembly (16); the support plate (12) has an L-shaped cross section and is fixed to one side of the bottom of the middle disc (2); the vertical rod (13) is rotatably arranged on the inner side of the support plate (12); the first bevel gear (14) is fixed to the upper end of the vertical rod (13); the second bevel gear (15) is arranged on a rotating rod (7); and the first bevel gear (14) is meshed with the second bevel gear (15).

4. The electric bed-assisting device according to claim 3, characterized in that: A circular hole is passed through the center of the bottom of the groove, the spline sleeve (17) is movably matched with the circular hole, the transmission component (16) is arranged between the spline sleeve (17) and the vertical rod (13), the transmission component (16) comprises a pulley and a transmission belt, the two pulleys are respectively arranged on the spline sleeve (17) and the vertical rod (13), and the transmission belt is arranged between the two pulleys.

5. The electric bed-assisting device according to claim 4, characterized in that: A notch is provided on the front side of the bed frame (1), a movable block (19) is movably arranged in the notch, a screw rod (20) is arranged at the bottom of the bed frame (1), a fourth gear (22) is sleeved on the screw rod (20), a third gear (21) is arranged on the lower side of the outer wall of the spline shaft (18), the third gear (21) is meshed with the fourth gear (22), a lifting plate (24) is threadedly arranged on the screw rod (20), a connecting rod (23) is fixed between the lifting plate (24) and the bottom of the movable block (19), the lifting plate (24) is sleeved on the outside of the spline sleeve (17), and the lifting plate (24) and the spline sleeve (17) are movably matched, a guide rod is fixed on one side of the bottom of the bed frame (1), the guide rod passes through the lifting plate (24), and the lifting plate (24) and the guide rod are slidably matched.

6. The electric bed-assisting device according to claim 5, characterized in that: Two vertical plates are relatively fixed on one side of the bottom of the middle disk (2), and the two vertical plates are relatively arranged outside the rectangular groove (5) on the left side. A support rod (25) is rotatably arranged between the two vertical plates, and the first gear (8) is arranged on the support rod (25). A motor (26) is installed on the vertical plate on the rear side, and the output end of the motor (26) is connected to the rear end of the support rod (25).

7. The electric bed-assisting device according to claim 6, characterized in that: An L-shaped bracket (27) is fixed to the rear side of the bottom of the bed frame (1), a partition is fixed inside the bracket (27), a servo motor (28) is installed on the lower side of the partition, the output end of the servo motor (28) is connected to the lower end of the spline shaft (18), and the lower end of the screw rod (20) is rotatably connected to the bracket (27).

8. The electric bed-assisting device according to claim 7, characterized in that: The middle disc (2) Two handrails (29) are relatively fixed on the top, and two supporting blocks (30) are relatively fixed on the inner side of the groove. The two support blocks (30) cooperate with the bottom of the upper body plate (3) and the bottom of the lower body plate (4) respectively. The top of the bed frame (1) is provided with a head portion and a foot portion opposite to each other.

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