Rehabilitation medical bed for assisting lower limb rehabilitation

By adjusting the height and angle of the bed board using a drive motor and cylinder, and combining this with a dual-head motor to simulate lower limb movements, the problem of limited functionality in existing rehabilitation medical beds has been solved, enabling flexible adjustment of the bed board and effective rehabilitation training.

CN224307503UActive Publication Date: 2026-06-02NANCHANG FIRST HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANCHANG FIRST HOSPITAL
Filing Date
2025-05-06
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing rehabilitation beds have limited functionality, with fixed bed height and angle, and cannot be adjusted according to the patient's needs, thus affecting the effectiveness of rehabilitation training.

Method used

The bed board height is adjusted by a drive motor that drives a threaded rod, the bed board angle is adjusted by a cylinder, and the lower limb flexion and extension movements are simulated by a dual-head motor. Combined with a snap-fit ​​structure, the bed board can be flexibly adjusted and used for rehabilitation training.

Benefits of technology

The height and angle of the bed board can be flexibly adjusted to meet the needs of different body positions, simulate the flexion and extension movements of the lower limbs, and improve the effect of rehabilitation training.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to medical rehabilitation device technical field discloses a kind of rehabilitation medical bed for assisting lower limb rehabilitation, including bed body and bed board, the bottom of the bed body is fixedly connected with support column, the bottom of the support column is fixedly connected with universal wheel, the top of the bed body is equipped with adjusting assembly, the middle part of the bed board is equipped with connecting assembly;The adjusting assembly includes drive motor, the drive motor is fixedly connected in the top of the bed body, the output of the drive motor is fixedly connected with threaded rod, the outside of the threaded rod is provided with movable block.In the utility model, threaded rod is rotated by drive motor, movable block moves on threaded rod, and then bed board height is adjusted by connecting rod;At the same time, cylinder telescopic auxiliary adjustment bed board angle can meet the different body position needs of patient, such as sitting up, lying down or tilting, etc., which provides convenience for rehabilitation training and daily nursing.
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Description

Technical Field

[0001] This utility model relates to the field of medical rehabilitation equipment technology, and in particular to a rehabilitation medical bed for assisting lower limb rehabilitation. Background Technology

[0002] A medical bed is an instrument or other item used on the human body. Its effects on the human body surface are not obtained through pharmacological, immunological, or metabolic means, but these means are involved and play a certain auxiliary role. Its use is intended to achieve the following expected purposes: prevention, diagnosis, treatment, monitoring, and relief of diseases; and diagnosis, treatment, monitoring, relief, and compensation for injuries or disabilities.

[0003] A search revealed Chinese Patent Publication No. CN222517235U, which discloses a rehabilitation medical bed for assisting lower limb rehabilitation. The bed includes a main body with an operating frame movably connected to its upper part. A connecting plate is movably connected inside the operating frame, and an abutment block is installed on one outer wall of the connecting plate. An adjustment block is located below the abutment block. This invention utilizes the movable cavity and adjustment block to adjust the block according to the lifting height and usage requirements during use. A motor output drives the movable cavity and adjustment block, causing them to abut against the abutment block, thereby lifting the patient's lower limb. The motor can also continuously rotate the movable cavity and adjustment block, causing the connecting plate to move up and down cyclically, thus promoting lower limb rehabilitation.

[0004] While the above-mentioned solutions have achieved the effect of lower limb rehabilitation, the rehabilitation medical bed has a relatively limited function. It can only move the lower limbs up and down for training, but cannot simulate flexion and extension training, which affects the patient's rehabilitation training process. In addition, the height and angle of the bed board are fixed and cannot be adjusted according to the patient's needs. Therefore, a rehabilitation medical bed for assisting lower limb rehabilitation is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rehabilitation medical bed for assisting lower limb rehabilitation, aiming to improve the problem that the height and angle of the bed board in the prior art are fixed and cannot be adjusted according to the patient's needs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rehabilitation medical bed for assisting lower limb rehabilitation includes a bed frame and a bed board. A support column is fixedly connected to the bottom of the bed frame, and casters are fixedly connected to the bottom of the support column. An adjustment component is installed on the top of the bed frame, and a connecting component is installed in the middle of the bed board.

[0008] The adjustment assembly includes a drive motor, which is fixedly connected to the top of the bed. A threaded rod is fixedly connected to the output end of the drive motor. A movable block is provided outside the threaded rod. A connecting rod is rotatably connected to the outside of the movable block. The connecting rod is rotatably connected to the bottom of the bed board. A cylinder is rotatably connected to the middle of the bed board. An adjustment plate is rotatably connected to the outside of the cylinder.

[0009] As a further description of the above technical solution:

[0010] The bed board is provided with a connecting block on its exterior, and an electric push rod is fixedly connected to the top of the connecting block;

[0011] As a further description of the above technical solution:

[0012] The connecting assembly includes a housing, which is fixedly connected to the middle of the connecting block. A locking post is slidably connected inside the housing, and a spring is sleeved on the outside of the locking post. A locking groove is opened in the middle of the bed board, and the locking groove engages with the locking post.

[0013] As a further description of the above technical solution:

[0014] The electric push rod 2 is fixedly connected to the middle of the electric push rod 1, and the end of the electric push rod 1 is fixedly connected to the housing. A dual-head motor is fixedly connected inside the housing. An eccentric plate is fixedly connected to the output end of the dual-head motor. A foot placement plate is fixedly connected to the outside of the eccentric plate. A lower limb placement plate is fixedly connected to the outside of the foot placement plate.

[0015] As a further description of the above technical solution:

[0016] The footrest plate is externally fixed with straps;

[0017] As a further description of the above technical solution:

[0018] A slide rod is fixedly connected to the top of the bed, and a slider is slidably connected to the outside of the slide rod. A connecting rod is rotatably connected to the outside of the slider.

[0019] As a further description of the above technical solution:

[0020] A limit block is fixedly connected to the top of the bed, and the threaded rod is rotatably connected to the middle of the limit block;

[0021] As a further description of the above technical solution:

[0022] A handle is fixedly connected to the top of the outer casing.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the drive motor drives the threaded rod to rotate, causing the movable block to move on the threaded rod, and then the connecting rod drives the bed board height adjustment; at the same time, the cylinder extension and retraction assists in adjusting the bed board angle, which can meet the different positional needs of patients, such as sitting up, lying down or tilting, etc., providing convenience for rehabilitation training and daily care.

[0025] 2. In this utility model, a dual-head motor drives an eccentric disc to rotate, thereby causing the foot placement plate and the lower limb placement plate to reciprocate, simulating the flexion and extension movements of the lower limbs, helping patients to perform lower limb rehabilitation training. The connecting block is fixed by engaging the locking post with the locking slot. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a rehabilitation medical bed for assisting lower limb rehabilitation proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the threaded rod of a rehabilitation medical bed for assisting lower limb rehabilitation proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the connecting block of a rehabilitation medical bed for assisting lower limb rehabilitation proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the eccentric disc of a rehabilitation medical bed for assisting lower limb rehabilitation proposed in this utility model.

[0030] Legend:

[0031] 1. Bed frame; 2. Support column; 3. Casters; 4. Eccentric plate; 5. Adjustment plate; 6. Bed board; 7. Footrest board; 8. Lower limb rest board; 9. Shell; 10. Electric push rod one; 11. Connecting block; 12. Connecting rod; 13. Drive motor; 14. Threaded rod; 15. Slide rod; 16. Slider; 17. Limiting block; 18. Moving block; 19. Cylinder; 20. Slot; 21. Electric push rod two; 22. Locking column; 23. Shell; 24. Spring; 25. Handle; 26. Straps; 27. Dual-head motor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a rehabilitation medical bed for assisting lower limb rehabilitation, comprising a bed body 1 and a bed board 6. A support column 2 is fixedly connected to the bottom of the bed body 1, and casters 3 are fixedly connected to the bottom of the support column 2. The casters 3 allow the rehabilitation medical bed to be easily moved to the desired position, facilitating adjustments to the usage scenario. An adjustment assembly is installed on the top of the bed body 1, and a connecting assembly is installed in the middle of the bed board 6. The adjustment assembly includes a drive motor 13, which is fixedly connected to the top of the bed body 1. A threaded rod 14 is fixedly connected to the output end of the drive motor 13, and a movable block 18 is provided on the outside of the threaded rod 14. The movable block 18 rotates externally. A connecting rod 12 is rotatably connected to the bottom of the bed board 6. When the drive motor 13 drives the threaded rod 14 to rotate, the movable block 18 on the threaded rod 14 will move linearly along the threaded rod 14. The movement of the movable block 18 is transmitted to the bed board 6 through the connecting rod 12, thereby driving the bed board 6 to perform corresponding height adjustments, realizing the raising and lowering of the bed board 6. A cylinder 19 is rotatably connected to the middle of the bed board 6, and an adjusting plate 5 is rotatably connected to the outside of the cylinder 19. When the cylinder 19 extends or retracts, it will drive the adjusting plate 5 to rotate in the middle, thereby changing the angle of the bed board 6 to meet different rehabilitation needs and provide patients with a suitable lying angle. A connecting block 11 is provided on the outside of the bed board 6, and an electric push rod 21 is fixedly connected to the top of the connecting block 11. A slide rod 15 is fixedly connected to the top of the bed frame 1, and a slider 16 is slidably connected to the outside of the slide rod 15. A connecting rod 12 is rotatably connected to the outside of the slider 16. The connecting rod 12 is rotatably connected to the slider 16 on the slide rod 15, allowing the slider 16 to slide on the slide rod 15. This helps guide and limit the movement direction of the bed board 6 during adjustment, further enhancing the stability of the structure and the accuracy of movement. A limit block 17 is fixedly connected to the top of the bed frame 1, and a threaded rod 14 is rotatably connected to the middle of the limit block 17.

[0034] Reference Figure 1 , Figure 3 and Figure 4The connecting assembly includes a housing 23, which is fixedly connected to the middle of the connecting block 11. A locking post 22 is slidably connected inside the housing 23, and a spring 24 is sleeved on the outside of the locking post 22. A slot 20 is provided in the middle of the bed board 6, and the slot 20 engages with the locking post 22. When the connecting block 11 needs to be installed or disassembled, it is installed by engaging and disengaging the locking post 22 with the slot 20. An electric push rod 10 is fixedly connected to the middle of the electric push rod 21. A housing 9 is fixedly connected to the end of the electric push rod 10. A dual-head motor 27 is fixedly connected inside the housing 9. An eccentric disk 4 is fixedly connected to the output end of the dual-head motor 27. A footrest plate 7 is fixedly connected to the outside of the eccentric disk 4. A lower limb rest plate 8 is fixedly connected to the outside of the footrest plate 7. The two output ends of the dual-head motor 27 drive the eccentric disk 4 to rotate respectively. Due to the eccentric structure of the eccentric disc 4, eccentric motion is generated during rotation, which drives the foot placement plate 7 and the lower limb placement plate 8 to reciprocate and move, simulating flexion, extension, and rotation of the lower limbs to help patients with lower limb rehabilitation training. The intensity and rhythm of the rehabilitation training can be adjusted by controlling the speed and direction of the dual-head motor 27. A strap 26 is externally fixed to the foot placement plate 7 to secure the patient's feet and prevent them from slipping during training. A handle 25 is fixedly connected to the top of the locking post 22.

[0035] Working principle: The drive motor 13 rotates the threaded rod 14, causing the movable block 18 to move back and forth on the threaded rod 14. This, in turn, drives the connecting rod 12 to push the bed board 6 upwards, thus adjusting the height of the bed board 6. Simultaneously, the cylinder 19 extends, pushing the angle of the adjusting plate 5, making the angle adjustment of the bed board 6 more flexible and stable. The dual-head motor 27 rotates the eccentric disc 4, causing the footrest plate 7 and lower limb rest plate 8 to reciprocate, simulating the flexion and extension movements of the lower limbs, thereby assisting patients in lower limb rehabilitation training.

[0036] When the connection needs to be installed on the bed board 6, slide the locking post 22 downwards. Under the action of the spring 24, it engages with the locking groove 20 in the middle of the bed board 6, thereby fixing the connecting block 11 to the bed board 6. When it is necessary to disassemble or adjust the connecting block 11, pull the locking post 22 upwards through the handle 25 to overcome the elastic force of the spring 24, so that the locking post 22 disengages from the locking groove 20, thereby separating the connecting block 11 from the bed board 6.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rehabilitation medical bed for assisting lower limb rehabilitation, comprising a bed body (1) and a bed board (6), characterized in that: The bottom of the bed (1) is fixedly connected to a support column (2), the bottom of the support column (2) is fixedly connected to a caster wheel (3), the top of the bed (1) is equipped with an adjustment component, and the middle of the bed board (6) is equipped with a connecting component. The adjustment assembly includes a drive motor (13), which is fixedly connected to the top of the bed (1). A threaded rod (14) is fixedly connected to the output end of the drive motor (13). A movable block (18) is provided on the outside of the threaded rod (14). A connecting rod (12) is rotatably connected to the outside of the movable block (18). The connecting rod (12) is rotatably connected to the bottom of the bed board (6). A cylinder (19) is rotatably connected to the middle of the bed board (6). An adjustment plate (5) is rotatably connected to the outside of the cylinder (19).

2. The rehabilitation medical bed for assisting lower limb rehabilitation according to claim 1, characterized in that: A connecting block (11) is provided on the outside of the bed board (6), and an electric push rod (21) is fixedly connected to the top of the connecting block (11).

3. The rehabilitation medical bed for assisting lower limb rehabilitation according to claim 2, characterized in that: The connecting assembly includes a housing (23), which is fixedly connected to the middle of the connecting block (11). A locking post (22) is slidably connected inside the housing (23), and a spring (24) is sleeved on the outside of the locking post (22). A slot (20) is opened in the middle of the bed board (6), and the slot (20) is engaged with the locking post (22).

4. The rehabilitation medical bed for assisting lower limb rehabilitation according to claim 2, characterized in that: The electric push rod 1 (10) is fixedly connected to the middle of the electric push rod 2 (21). The end of the electric push rod 1 (10) is fixedly connected to the housing (9). The inside of the housing (9) is fixedly connected to the dual-head motor (27). The output end of the dual-head motor (27) is fixedly connected to the eccentric disk (4). The outside of the eccentric disk (4) is fixedly connected to the foot placement plate (7). The outside of the foot placement plate (7) is fixedly connected to the lower limb placement plate (8).

5. The rehabilitation medical bed for assisting lower limb rehabilitation according to claim 4, characterized in that: The foot placement plate (7) is externally fixed with straps (26).

6. The rehabilitation medical bed for assisting lower limb rehabilitation according to claim 1, characterized in that: A slide rod (15) is fixedly connected to the top of the bed (1), and a slider (16) is slidably connected to the outside of the slide rod (15). The connecting rod (12) is rotatably connected to the outside of the slider (16).

7. The rehabilitation medical bed for assisting lower limb rehabilitation according to claim 1, characterized in that: A limiting block (17) is fixedly connected to the top of the bed (1), and the threaded rod (14) is rotatably connected to the middle of the limiting block (17).

8. A rehabilitation medical bed for assisting lower limb rehabilitation according to claim 3, characterized in that: A handle (25) is fixedly connected to the top of the locking post (22).