Restraint device for psychiatric department and nursing bed

By using a drive motor to drive the positive and negative threaded rods and transmission block system, combined with the meshing of the slide rail and rack, the height of the hospital bed can be precisely adjusted. A micro electric cylinder drives the arc-shaped constraint plate for precise constraint, which solves the problems of inconvenient height adjustment and uncomfortable constraint in the existing technology, and improves work efficiency and patient comfort.

CN224387606UActive Publication Date: 2026-06-23陈艳花

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
陈艳花
Filing Date
2025-04-01
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing psychiatric nursing beds lack convenient and precise height adjustment functions, which makes it inconvenient for medical staff to operate and results in poor or excessive patient restraint, affecting work efficiency and patient comfort.

Method used

The system uses a drive motor to drive the positive and negative threaded rods, combined with a transmission block, transmission rod, and swing lifting adjustment block. The bed height is precisely adjusted by the meshing of the slide rail and rack. A micro electric cylinder drives the arc-shaped constraint plate for precise constraint. The system is also automated by an intelligent controller.

Benefits of technology

It enables flexible adjustment of the height of the hospital bed, improves the work efficiency of medical staff, reduces the workload, ensures the safety and comfort of patients, and avoids discomfort caused by excessive restraint.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to psychiatric medical nursing technical field discloses restraint device and nursing bed for psychiatry, including two support frames, both sides positions between the support frame all install mounting bracket, the mounting bracket between and located intermediate position rotationally connected have positive and negative screw rod, the input of positive and negative screw rod is connected with drive motor. In the utility model, drive positive and negative screw rod rotation with drive motor, drive transmission block, transmission rod and swing lifting adjusting block to operate cooperatively, combine the meshing drive of slide rail and rack, realize the accurate and smooth height adjustment of sick bed chassis, drive the arc constraint board according to the patient's body shape, state to carry out accurate positioning and constraint through the intelligent control micro -electrical cylinder of controller, can effectively prevent the patient from appearing self -injury, hurting or falling bed etc. accidental situation because of unstable mental state, can also avoid the discomfort and harm that patient brings because of excessive restraint to the greatest extent.
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Description

Technical Field

[0001] This utility model relates to the field of psychiatric medical and nursing technology, and in particular to restraint devices and nursing beds for psychiatric use. Background Technology

[0002] In psychiatric clinical settings, many patients may exhibit dangerous behaviors such as self-harm, harming others, or destroying property due to their psychotic symptoms (e.g., hallucinations and delusions in schizophrenia patients, and excitement and impulsivity in manic patients). For example, a depressed patient with suicidal ideation may attempt to bang their head against a wall or cut their wrists with a sharp object; a patient experiencing a manic episode may attack medical staff or other patients. To ensure the safety of patients and those around them, restraint devices become a necessary protective measure.

[0003] However, existing technologies have the following shortcomings: traditional psychiatric nursing beds often lack convenient and precise height adjustment functions. When performing procedures such as changing dressings or conducting physical examinations, medical staff often have to maintain uncomfortable postures such as bending over or raising their arms for extended periods due to the fixed or inconvenient height of the bed. This not only reduces work efficiency but also easily leads to physical fatigue. Existing restraint devices are either ineffective in preventing patients from self-harming, harming others, or falling from the bed, or they are excessively restrictive, causing great discomfort to patients, triggering patient resistance, and hindering treatment. Therefore, those skilled in the art have provided psychiatric restraint devices and nursing beds to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of existing technologies by proposing a restraint device and nursing bed for psychiatric use. To achieve the above objective, this utility model provides the following technical solution: It includes two support frames, with mounting brackets installed on both sides of the support frames. A positive and negative threaded rod is rotatably connected between the mounting brackets and located in the middle. The input end of the positive and negative threaded rod is connected to a drive motor. The drive motor is installed in the middle of one side wall of any mounting bracket. A transmission block is threadedly connected to both the positive and negative threaded ends of the positive and negative threaded rods. A transmission rod is installed in the middle of the front and rear side walls of each transmission block. The other end of the transmission rod... Each end is rotatably connected to a swing lifting adjustment block. The front and rear side walls of the swing lifting adjustment blocks are rotatably connected to a rotating shaft near the middle of their bottom positions. The output ends of the rotating shafts are connected to transmission gears. The front and rear side walls of the support frame are respectively equipped with slide rails, which are distributed in a rectangular array. The top and bottom middle positions of the inner side walls of the slide rails are each equipped with a rack. The transmission gears mesh with the corresponding racks. Supporting rods are connected near the middle of the upper end between the swing lifting adjustment blocks. Fixed brackets are installed on the front and rear sides of the outer side walls of the supporting rods. The top of the fixed brackets is equipped with a bed base frame.

[0005] Preferably, the bottom center of the support frame is equipped with steering wheels on both sides, and the steering wheels are distributed in a rectangular array.

[0006] Preferably, a middle plate is installed at the top center of the bed frame, and a front plate and a rear plate are installed on the two side walls of the middle plate, respectively. A headrest is installed at the top center of the front plate near one side.

[0007] Preferably, a first sliding groove is provided at the top center of the middle plate near the front and rear sides, and a first slider is slidably connected to the middle position of the inner sidewall of the first sliding groove. A second sliding groove is provided at the top center of the rear plate near the front and rear sides, and a second slider is slidably connected to the middle position of the inner sidewall of the second sliding groove.

[0008] Preferably, a constraint mechanism is fixedly installed at the top middle position of both the first slider and the second slider. The constraint mechanism includes a mounting base, a constraint ring is installed at the top of the mounting base, a miniature electric cylinder is installed at the top middle position of the constraint ring, the output end of the miniature electric cylinder passes through the bottom middle position of the constraint ring, and the output end of the miniature electric cylinder is connected to an arc-shaped constraint plate.

[0009] Preferably, the two side walls of the bed frame are respectively equipped with brackets, the bottom of any one of the brackets is equipped with an installation plate, the top of the middle of one side wall of the installation plate is equipped with an installation block, and the snap-fit ​​end of the installation block is snapped with a controller.

[0010] Preferably, the controller is electrically connected to both the miniature electric cylinder and the drive motor.

[0011] This utility model has the following beneficial effects:

[0012] 1. In this utility model, a drive motor is used to drive the positive and negative threaded rods to rotate, which in turn drives the transmission block, transmission rod, and swing lifting adjustment block to work in coordination. Combined with the meshing transmission of the slide rail and rack, precise and smooth height adjustment of the bed frame is achieved. This not only meets the diverse needs of medical staff for bed height during different nursing operations, such as adjusting to a suitable height when changing dressings or examining patients, reducing the burden of bending over and raising arms, and improving work efficiency; it also allows the bed height to be changed at any time according to the patient's individual comfort requirements, enhancing the patient's medical experience.

[0013] 2. In this utility model, a micro electric cylinder is intelligently controlled by a controller to drive the arc-shaped restraint plate for precise positioning and restraint according to the patient's body shape and condition. This effectively prevents accidents such as self-harm, harming others, or falling out of bed due to unstable mental state, while also minimizing discomfort and injury caused by excessive restraint. The bed's load-bearing surface, composed of the middle, front, and rear boards, combined with a comfortable headrest, further enhances the patient's lying comfort, helping to stabilize their emotions and facilitate treatment. Attached Figure Description

[0014] Figure 1 This is a top view of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the restraint bed in the overall design of this utility model;

[0016] Figure 3 This is a front view of the overall structure of this utility model;

[0017] Figure 4 This is a side view of a part of the overall structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the slide rail.

[0019] Legend: 1. Support frame; 2. Mounting frame; 3. Slide rail; 4. Drive motor; 5. Positive and negative threaded rod; 6. Transmission block; 7. Transmission rod; 8. Swing lifting adjustment block; 9. Support link; 10. Fixed bracket; 11. Transmission gear; 12. Steering wheel; 13. Bed base frame; 14. Bracket; 15. Middle plate; 16. Restraint mechanism; 17. Mounting plate; 18. Mounting block; 19. Controller; 20. First slider; 21. First slide groove; 22. Front plate; 23. Rear plate; 24. Second slide groove; 25. Second slider; 26. Miniature electric cylinder; 27. Arc-shaped restraint plate; 28. Headrest; 29. ​​Rack. Detailed Implementation

[0020] 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.

[0021] Reference Figure 1 — Figure 5The psychiatric restraint device and nursing bed includes two support frames 1. Mounting frames 2 are securely installed on both sides between the support frames 1. A threaded rod 5 is rotatably connected to the mounting frames 2 via a bearing at the center of the mounting frames 2. A drive motor 4 is installed at the center of one side wall of any mounting frame 2, and its output shaft is tightly connected to the input end of the threaded rod 5. The threaded ends of the threaded rod 5 are threaded to transmission blocks 6. A transmission rod 7 is installed at the center of the front and rear side walls of the transmission block 6, and its other end is rotatably connected to a swing lifting adjustment block 8. The rotating shaft and transmission gear 11 at the bottom of the swing lifting adjustment block 8 mesh with a rack 29 located at the center of the top and bottom of the inner wall of a slide rail 3 arranged in a rectangular array on both sides of the front and rear side walls of the support frame 1. When the drive motor 4 is working, it drives the positive and negative threaded rod 5 to rotate, causing the transmission block 6 to move. The transmission rod 7 drives the swing lifting adjustment block 8 to rise and fall along the rack 29. Finally, the height of the bed frame 13 is adjusted through the support link 9 and the fixed bracket 10 to meet the needs of different scenarios.

[0022] Steering wheels 12 are arranged in a rectangular array on both sides of the bottom center of the support frame 1. These steering wheels 12 have good steering flexibility, so that the entire device can easily and quickly reach its destination with just a little force, whether it is moving in narrow passages in the ward or needing to be transferred to other departments. This greatly facilitates the daily operation of medical staff and improves work efficiency.

[0023] The top of the bed frame 13 is formed by a middle plate 15, a front plate 22, and a rear plate 23, creating a load-bearing surface. A headrest 28 is located on one side of the top center of the front plate 22 to provide comfortable support for the patient's head. A restraint mechanism 16 is installed in the first sliding groove 21 on both sides of the middle plate 15 and the second sliding groove 24 on one side of the top of the rear plate 23, respectively, via a first slider 20 and a second slider 25. The restraint mechanism 16 includes a mounting base, and a miniature electric cylinder 26 is installed at the top center of the restraint ring on the mounting base. The output end of the miniature electric cylinder 26 passes through the restraint ring and connects to an arc-shaped restraint plate 27. Medical staff can control the miniature electric cylinder 26, driven by a controller 19 that is snapped onto a mounting block 18 at the top center of one side wall of the mounting plate 17, according to the patient's actual condition. This drives the arc-shaped restraint plate 27 to precisely restrain the patient, ensuring patient safety and minimizing discomfort. The controller 19, snapped onto the side wall 17 of the mounting block 18 at the bottom of the support 14, is electrically connected to the miniature electric cylinder 26 and the drive motor 4, enabling intelligent control.

[0024] Working Principle: When the bed height needs to be adjusted, the drive motor 4 starts running, and its power output shaft drives the positive and negative threaded rods 5 to rotate. The positive and negative threaded ends are tightly threaded to the transmission blocks 6. Under the mechanical principle of threaded transmission, as the positive and negative threaded rods 5 rotate, the two transmission blocks 6 will make linear movements that are relatively close or far apart, depending on the direction of rotation. The transmission rod 7 installed at the midpoint between the front and rear sidewalls of the transmission block 6 transmits this movement to the swing lifting adjustment block 8, causing it to move. Simultaneously, the rotating shaft located near the midpoint of the bottom of the front and rear sidewalls of the swing lifting adjustment block 8, and the transmission gear 11 connected to it, will roll and mesh along the racks 29 precisely installed at the midpoint of the top and bottom of the inner wall of the slide rails 3, which are arranged in a rectangular array on both sides of the front and rear sidewalls of the support frame 1. Through this ingenious mechanical cooperation, the stable lifting action of the swing lifting adjustment block 8 is achieved. Furthermore, with the stable connection of the support link 9 and the fixed bracket 10, the height of the bed base frame 13 can be precisely adjusted to adapt to different medical and nursing operation needs or patient comfort requirements.

[0025] At the bottom center of the support frame 1, near both sides, there are evenly distributed steering wheels 12 in a rectangular array. These steering wheels 12 have flexible steering function. Whether moving in the narrow space of the ward or transferring between different departments, the entire device can be moved easily and quickly with just a gentle push, which greatly meets the needs of diverse medical scenarios and provides great convenience for the work of medical staff.

[0026] The controller 19, as the intelligent central hub of the entire restraint system, plays a crucial control role. When necessary restraint of the patient is required, medical staff issue commands through the controller 19 to activate the miniature electric cylinder 26. The output end of the miniature electric cylinder 26 is firmly connected to the arc-shaped restraint plate 27, which is stably installed inside the restraint ring, which is in turn fixed to the mounting base. The mounting base is not fixed in place; it slides smoothly through the first slider 20 and the second slider 25 within the first groove 21 carefully carved on both sides of the middle plate 15 and the second groove 24 meticulously designed on one side of the top of the rear plate 23, near the front and rear sides, respectively. In this way, medical staff can flexibly adjust the position of the restraint mechanism 16 according to the patient's body shape, position, and other actual conditions, ensuring that the arc-shaped restraint plate 27 can accurately and comfortably restrain the patient, minimizing patient discomfort while ensuring patient safety. In addition, the headrest 28, located on one side of the top center of the front plate 22, provides just the right amount of support for the patient's head, improving the patient's lying comfort. The middle plate 15, front plate 22, and rear plate 23 are tightly joined together to form a solid and comfortable support surface for the hospital bed. The mounting block 18 at the top center of one side wall of the mounting plate 17 uses a convenient snap-fit ​​method to fix the controller 19, which not only facilitates operation and control by medical staff but also makes disassembly and maintenance easy. The controller 19 is electrically connected to the miniature electric cylinder 26 and the drive motor 4, forming a highly efficient automated control system that allows medical staff to easily monitor the operation of the entire device.

[0027] 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 psychiatric nursing bed, characterized in that: The device includes two support frames (1), with mounting brackets (2) installed on both sides between the support frames (1). A positive and negative threaded rod (5) is rotatably connected between the mounting brackets (2) and located in the middle. A drive motor (4) is connected to the input end of the positive and negative threaded rod (5). The drive motor (4) is installed in the middle of one side wall of any mounting bracket (2). A transmission block (6) is threaded to both the positive and negative threaded ends of the positive and negative threaded rods (5). A transmission rod (7) is installed in the middle of the front and rear side walls of the transmission block (6). The other end of the transmission rod (7) is rotatably connected to a swing lifting adjustment block (8). The front side wall and the bottom of the rear side wall of the swing lifting adjustment block (8) are rotatably connected to a rotating shaft. The output end of the rotating shaft is connected to a transmission gear (11). The front side wall and the rear side wall of the support frame (1) are respectively equipped with slide rails (3). The slide rails (3) are arranged in a rectangular array. The top and bottom middle positions of the inner side wall of the slide rails (3) are respectively equipped with racks (29). The transmission gears (11) mesh with the corresponding racks (29). A support rod (9) is connected to the upper middle position of the swing lifting adjustment block (8). A fixed bracket (10) is installed on the front and rear sides of the outer side wall of the support rod (9). A bed frame (13) is installed on the top of the fixed bracket (10).

2. The psychiatric nursing bed according to claim 1, characterized in that: The support frame (1) has two steering wheels (12) installed at the bottom center near both sides, and the steering wheels (12) are arranged in a rectangular array.

3. The psychiatric nursing bed according to claim 1, characterized in that: A middle plate (15) is installed at the top center of the bed frame (13). A front plate (22) and a rear plate (23) are installed on the two side walls of the middle plate (15). A headrest (28) is installed at the top center of the front plate (22) on one side.

4. The psychiatric nursing bed according to claim 3, characterized in that: The middle plate (15) has a first sliding groove (21) at the top center near the front and rear sides. The middle of the inner wall of the first sliding groove (21) is slidably connected to a first slider (20). The rear plate (23) has a second sliding groove (24) at the top center near the front and rear sides. The middle of the inner wall of the second sliding groove (24) is slidably connected to a second slider (25).

5. The psychiatric nursing bed according to claim 1, characterized in that: The two side walls of the bed frame (13) are respectively equipped with brackets (14), and the bottom of any one of the brackets (14) is equipped with an installation plate (17). An installation block (18) is installed at the top of the middle of one side wall of the installation plate (17), and a controller (19) is snapped into the snap end of the installation block (18).

6. A restraint device for psychiatric use, characterized in that: The psychiatric nursing bed described in any one of claims 1-5 includes a restraint mechanism (16). The restraint mechanism (16) is installed at the top middle position of the first slider (20) and the second slider (25). The restraint mechanism (16) includes a mounting base. A restraint ring is installed at the top of the mounting base. A miniature electric cylinder (26) is installed at the top middle position of the restraint ring. The output end of the miniature electric cylinder (26) passes through the bottom middle position of the restraint ring. The output end of the miniature electric cylinder (26) is connected to an arc-shaped restraint plate (27).