An automatically movable bed arrangement

Abstract

The application discloses an automatic movable bed device, which comprises a bed frame, a movable support frame movably arranged in the bed frame, and a bed board set arranged on the movable support frame, wherein the bed board set comprises a back supporting unit; the back supporting unit is divided into a back board and a waist board; the back board is rotatable relative to the waist board; the waist board is rotatable relative to a hip board; a driving component composed of a driving electric cylinder and a linkage connecting rod set is arranged below the back supporting unit; and the driving electric cylinder, the linkage connecting rod set and the back supporting unit are sequentially transmissionally matched to adjust the elevation angle of the back board and the waist board during use; and a movable support rod is arranged on the lower side of the waist board, and the included angle between the movable support rod and the waist board is suitable for the falling condition of the back supporting unit under the dead weight.

Description

Technical Field

[0001] This invention relates to the field of electric bed technology, specifically, to an electric bed that can be adjusted for forward and backward movement during the backrest raising process. Background Technology

[0002] Currently, there is an electric bed that can be adjusted forward and backward during the backrest raising process. It includes a movable support frame that can be moved forward and backward within the bed frame, and a bed board assembly mounted on the movable support frame. The bed board assembly includes a backrest support unit. In existing technology, the backrest support unit is simply a movable plate that flips up and down under the drive of an electric cylinder to adjust the angle of the backrest support unit. However, this has caused some problems: When raising the backrest, the electric cylinder of the movable support frame drives the backrest support unit to flip upward. If the distance to the wall is too small, the angle between the support linkage (which supports and rotates the backrest) and the backrest is too small. When it needs to be leveled (without load), the backrest cannot flip downward under its own weight and requires the drive of the motor to level it, posing a safety hazard (such as pinching hands). Furthermore, the movable support frame needs to move a large distance, requiring ample installation space and high motor speed, resulting in high cost. Summary of the Invention

[0003] The purpose of this invention is to provide an automatically movable bed device to solve the problems existing in the prior art.

[0004] The object of the present invention is achieved as follows: an automatically movable bed device, comprising:

[0005] bedstead;

[0006] A movable support that can be set back and forth in the bed frame;

[0007] A bed board assembly mounted on a movable frame, the bed board assembly including a back support unit and a hip board;

[0008] The back support unit is divided into a back plate that supports the back and a waist plate that supports the waist. The back plate can rotate relative to the waist plate, and the waist plate can rotate relative to the hip plate. Below the back support unit is a drive component consisting of a drive electric cylinder and a linkage group. One end of the drive electric cylinder is rotatably connected to the movable bracket, and the other end is supported and movably connected to the back plate and waist plate through the linkage group. In use, the drive electric cylinder, the linkage group, and the back support unit are driven and cooperated in sequence to adjust the tilt angle of the back plate and waist plate.

[0009] A movable support rod is provided on the lower side of the lumbar support plate. The angle between the movable support rod and the lumbar support plate is suitable for the back support unit to fall by its own weight. One end of the movable support rod supports and is rotatably connected to the lower side of the lumbar support plate, and the other end of the movable support rod is rotatably connected to the bed frame and is set as the rotation fulcrum.

[0010] Furthermore, the linkage assembly consists of a support body and a back support rod. The drive electric cylinder, the support body, and the back support rod are hinged in sequence according to the transmission order to form a linkage mechanism. The support body and the back support rod respectively support and rotatably connect the waist plate and the back plate.

[0011] Furthermore, during the backrest rotation process, when the backrest plate rotates upward to a certain angle, the support body abuts against the bracket located on the lower side of the waist plate to lock the relative angle between the backrest plate and the waist plate; when the waist plate rotates upward to a preset angle, the angle between the movable support rod and the waist plate is obtuse.

[0012] Furthermore, the drive electric cylinder is rotatably connected to the support body to form a drive hinge point, the support body is rotatably connected to the lower side of the waist plate to form a waist support hinge point for supporting the waist plate, and the support body is rotatably connected to the back support rod to form a back plate support hinge point for supporting the back support rod.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. The back support unit is divided into a back plate and a waist plate. Using the driving action of a drive electric cylinder, the back plate and waist plate are lifted sequentially through the linkage of the mechanism. This is equivalent to performing the back lifting operation in stages to meet the usage requirements. In the back lifting state, only the drive electric cylinder needs to drive the support body to generate sufficient initial torque to lift the back plate first. Then, when the back plate rotates to a certain angle, the support body and the lower side bracket of the waist plate abut against each other to lock the relative angle between the back plate and the waist plate. Then, the drive electric cylinder continues to extend, causing the waist plate to rotate upward, making the back plate tilt angle greater, which conforms to the back curve of the human body when lifting the back.

[0015] 2. During the lifting process, when the waist plate rotates upward to the preset angle, the angle between the movable support rod and the waist plate is obtuse. When it needs to be flattened (under no load), the waist plate and back plate can flip downward by their own weight, reducing the power consumption of the drive electric cylinder and ensuring the safety of the working process. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is a perspective view of the present invention.

[0018] Figure 3 This is a schematic diagram of the invention in its initial stage.

[0019] Figure 4 This is a schematic diagram of the first stage of the present invention in the back-mounted state.

[0020] Figure 5 This is a schematic diagram of the second stage of the present invention in the back-mounted state.

[0021] Figure 6 This is a schematic diagram of the present invention in the waist-raising state. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-6 The present invention will be further illustrated by specific embodiments.

[0023] like Figure 1-2 As shown, an automatically movable bed device includes:

[0024] Bed frame 21;

[0025] Movable support 20 that can be moved back and forth in the bed frame 21;

[0026] The bed board assembly is mounted on the movable support 20. The bed board assembly includes a back support unit, a hip board 14, a leg board 15, and a foot board 16.

[0027] The leg electric cylinder 18 and the foot support rod 17 are connected to the lower side of the leg plate 14 and the movable bracket 20 at both ends of the leg electric cylinder 18, and to the foot plate 16 and the movable bracket 20 at both ends of the foot support rod 17. The leg plate 15, the foot plate 16 and the foot support rod 17 form a quadrilateral linkage mechanism. Driven by the leg electric cylinder 18, the leg plate 15 is lifted upward, and the foot plate 16 also has a corresponding movement, matching the posture of the thigh and calf when the human body lifts the leg.

[0028] The back support unit is divided into a back plate 8 that supports the back and a waist plate 7 that supports the waist. The back plate 8 can rotate relative to the waist plate 7, and the waist plate 7 can rotate relative to the hip plate 14. Below the back support unit is a drive component consisting of a drive electric cylinder 1 and a linkage group. One end of the drive electric cylinder 1 is rotatably connected to the movable bracket 20, and the other end is supported and movably connected to the back plate 8 and the waist plate 7 through the linkage group. In use, the drive electric cylinder 1, the linkage group, and the back support unit are driven and cooperated in sequence to adjust the tilt angle of the back plate 8 and the waist plate 7. The distance between the back plate 8 and the wall does not exceed 100mm.

[0029] like Figure 5As shown, the lower side of the lumbar support 7 is provided with a movable support rod 9, while the backrest 8 is directly connected to the bed frame 21 without a support rod. One end of the movable support rod 9 supports and rotatably connects to the lower side of the lumbar support 7, and the other end of the movable support rod 9 rotatably connects to the bed frame 21 and serves as a pivot point. When the backrest 8 rotates upward to the desired angle, the lumbar support 7 is also at a preset angle. The angle between the movable support rod 9 and the lumbar support 7 is an obtuse angle, which allows the entire backrest support unit to fall smoothly under its own weight until it is flat. Since the bed frame 21 is fixed with a pair of support seats 19 that support the left and right parts of the backrest 8 respectively when it is flat, the support of the backrest 8 is more stable and reliable.

[0030] The aforementioned linkage assembly consists of a support body 5 and a back support rod 6. The drive electric cylinder 1, support body 5, and back support rod 6 are sequentially hinged in the transmission sequence to form a linkage mechanism. The support body 5 and the back support rod 6 respectively support and rotatably connect the waist plate 7 and the back plate 8.

[0031] During the backrest lifting process, when the backrest plate 8 rotates upward to a certain angle, the support body 5 abuts against the bracket located on the lower side of the waist plate 7 to lock the relative angle between the backrest plate 8 and the waist plate 7. Then, under this abutting action, the waist plate 7 can be lifted upward, and at the same time, the backrest plate 8 can be lifted upward to the proper angle.

[0032] More specifically, the front side of the support body 5 is provided with a groove 5a, and the bracket on the lower side of the waist plate 7 is fixed with an abutment rod 501. When the back plate 8 is rotated upward at a certain angle, the inner wall of the groove 5a of the support body 5 abuts against the abutment rod 501 to lock the relative angle between the back plate 8 and the waist plate 7.

[0033] In this embodiment, the support body 5 has three force points, as follows: the above-mentioned drive electric cylinder 1 is rotatably connected to the support body 5 to form a drive hinge point 2; the support body 5 is rotatably connected to the lower side of the waist plate 7 to form a waist support hinge point 3 for supporting the waist plate 7; and the support body 5 is rotatably connected to the back support rod 6 to form a back plate support hinge point 4 for supporting the back support rod 6.

[0034] like Figure 3As shown, in the initial state of this embodiment, the driving arm of the electric cylinder 1 needs to meet the condition of being able to smoothly lift the back support unit. Specifically, when the back plate 8 and the waist plate 7 are both in a flat state, the waist support hinge point 3 is at the highest position of the support body 5 and close to the waist plate 7. The back plate support hinge point 4 and the driving hinge point 2 are both at the bottom of the support body 5, and the driving hinge point 2 is higher than the back plate support hinge point 4. The back plate support hinge point 4 is forward relative to the waist support hinge point 3. The back support rod 6 is tilted upward at a certain angle with the back plate support hinge point 4 as a reference. The driving hinge point 2 is backward relative to the waist support hinge point 3. The back plate support hinge point 4 is close to the bottom surface of the bed frame 21. This allows the driving arm of the electric cylinder 1 to reach its maximum so as to lift the back support unit.

[0035] like Figure 4 As shown, when lifting the back, the back plate 8 is first rotated upward by the sequential transmission action of the drive electric cylinder 1, support body 5, and back support rod 6 until the inner wall of the groove 5a of the support body 5 abuts against the abutment rod 501, thereby locking the relative angle between the back plate 8 and the waist plate 7.

[0036] like Figure 5 As shown, in Figure 4 Based on the state, the electric cylinder 1 continues to extend, causing the groove 5a of the support body 5 to abut against the abutment rod 501. Using the mutual abutment action of the groove 5a of the support body 5 and the abutment rod 501, the waist plate 7 is lifted upward. At the same time, the angle between the back plate 8 and the waist plate 7 is locked, and the back plate 8 is also lifted upward together with the waist plate 7 until the preset angle.

[0037] Since the angle between the movable support rod 9 and the waist plate 7 is obtuse at this time, the entire back support unit can fall smoothly under its own weight when it needs to fall, until it is flat.

[0038] like Figure 6 As shown, to improve the performance of lumbar support, the electric bed also includes a lumbar support component, which includes:

[0039] The waist support base 10 is fixedly connected to the lower side bracket of the waist plate 7;

[0040] The lumbar support frame 12 has one end rotatably connected to the lower support of the lumbar plate 7 and set as the fulcrum end, and the other end is set as the support end to support the human waist.

[0041] The electric cylinder 11 for waist support has one end rotatably connected to the waist support base 10, and the other end rotatably connected to the waist support frame 12 and close to the support end of the waist support frame 12.

[0042] like Figure 6As shown, when the back panel 8 and the waist panel 7 are rotated to a preset angle, the waist support electric cylinder 11 can be used to drive the waist support frame 12 to rotate upward, thereby adjusting the height of the waist support based on the backrest.

[0043] The lumbar support plate 7 has an opening that allows the lumbar support frame 12 to move through. In its initial state, the lumbar support frame 12 is located inside the opening of the lumbar support plate 7 and is supported by the lower support of the lumbar support plate 7. In order to reduce the mutual friction with the mattress and make the support effect better, the support end of the lumbar support frame 12 is set as a round rod-shaped lumbar support rod 13.

[0044] The above are preferred embodiments of the present invention. Those skilled in the art can make various modifications or improvements based on these embodiments. Without departing from the overall concept of the present invention, such modifications or improvements should fall within the scope of protection claimed by the present invention.

Claims

1. An automatically movable bed device, comprising: Bed frame (21); A movable support (20) that can be moved back and forth in the bed frame (21); A bed board assembly mounted on a movable support (20), the bed board assembly including a back support unit and a hip board (14); Its features are: The back support unit is divided into a back plate (8) supporting the back and a waist plate (7) supporting the waist. The back plate (8) can rotate relative to the waist plate (7), and the waist plate (7) can rotate relative to the hip plate (14). The back support unit is provided with a drive component consisting of a drive electric cylinder (1) and a linkage group. One end of the drive electric cylinder (1) is rotatably connected to the movable bracket (20), and the other end is supported and movably connected to the back plate (8) and the waist plate (7) through the linkage group. When in use, the drive electric cylinder (1), the linkage group, and the back support unit are driven and cooperated in sequence to adjust the elevation angle of the back plate (8) and the waist plate (7). The lower side of the waist plate (7) is provided with a movable support rod (9). One end of the movable support rod (9) supports and is rotatably connected to the lower side of the waist plate (7), and the other end of the movable support rod (9) is rotatably connected to the bed frame (21) and is set as a rotation fulcrum. The linkage assembly consists of a support body (5) and a back support rod (6). The drive electric cylinder (1), the support body (5), and the back support rod (6) are hinged in sequence according to the transmission order to form a linkage mechanism. The support body (5) and the back support rod (6) respectively support and rotatably connect the waist plate (7) and the back plate (8). During the backrest lifting process, when the back plate (8) rotates upward to a certain angle, the support (5) abuts against the bracket located on the lower side of the waist plate (7) to lock the relative angle between the back plate (8) and the waist plate (7); when the waist plate (7) rotates upward to a preset angle, the angle between the movable support rod (9) and the waist plate (7) is obtuse. The front side of the support body (5) is provided with a groove (5a), and the bracket on the lower side of the waist plate (7) is fixed with an abutment rod (501). When the back plate (8) rotates upward at a certain angle, the inner wall of the groove (5a) of the support body (5) abuts against the abutment rod (501) to lock the relative angle between the back plate (8) and the waist plate (7).

2. The automatically movable bed device according to claim 1, characterized in that: The drive electric cylinder (1) is rotatably connected to the support body (5) to form a drive hinge point (2), the support body (5) is rotatably connected to the lower side of the waist plate (7) to form a waist support hinge point (3) for supporting the waist plate (7), and the support body (5) is rotatably connected to the back support rod (6) to form a back plate support hinge point (4) for supporting the back support rod (6).

3. The automatically movable bed device according to claim 2, characterized in that: When the back panel (8) and the waist panel (7) are both in a flat position, the waist support hinge point (3) is at the highest position of the support body (5) and close to the waist panel (7). The back panel support hinge point (4) and the drive hinge point (2) are both at the bottom of the support body (5), and the drive hinge point (2) is higher than the back panel support hinge point (4). The back panel support hinge point (4) is forward relative to the waist support hinge point (3). The back panel support hinge point (4) is close to the bottom surface of the bed frame (21). The drive hinge point (2) is backward relative to the waist support hinge point (3).

4. The automatically movable bed device according to claim 3, characterized in that: When both the back plate (8) and the waist plate (7) are in a flat position, the back support rod (6) tilts upward at a certain angle with the back plate support hinge point (4) as the reference.

5. The automatically movable bed device according to claim 1, characterized in that: The bed frame (21) is fixed with a pair of support seats (19) that support the left and right sides of the back panel (8) respectively when the back panel (8) is flat.

6. The automatically movable bed device according to claim 1, characterized in that: It also includes a lumbar support component, the lumbar support component comprising: Waist support base (10) of the lower bracket of the waist plate (7) is fixedly connected; Waist support frame (12), one end of which is rotatably connected to the lower support of the waist plate (7) and set as the fulcrum end, and the other end is set as the support end; A waist support electric cylinder (11) is rotatably connected at one end to a waist support base (10) and at the other end to a waist support frame (12) and close to the support end of the waist support frame (12).

7. The automatically movable bed device according to claim 6, characterized in that: The waist plate (7) is provided with an opening to accommodate the entire waist support frame (12) to move through. In the initial state, the waist support frame (12) is located in the opening of the waist plate (7) and is supported by the lower support of the waist plate (7). The supporting end of the waist support frame (12) is a round rod-shaped waist support rod (13).

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