Nursing emergency protection device for preventing patient from falling off bed

By designing a servo motor-driven worm gear and lifting screw mechanism on the nursing bed, the bed's anti-fall function is achieved. The synchronous movement of the support plate and the blocking plate avoids cumbersome operation and secondary injuries.

CN223760033UActive Publication Date: 2026-01-06THE SECOND AFFILIATED HOSPITAL OF KUNMING MEDICAL UNIV (YUNNAN PROVINCIAL UROLOGY HOSPITAL YUNNAN PROVINCIAL HEPATOBILIARY & PANCREATIC SURGERY HOSPITAL)
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Patent Information

Application Number
CN202423232409.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2026-01-06
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

The existing guardrails on nursing beds are cumbersome to operate and may cause secondary injury to patients. Traditional guardrails are also prone to impacting the patient's body when raised.

Method used

Design an emergency protection device for preventing patients from falling out of bed in nursing care. Utilize a servo motor to drive a worm gear mechanism and a lifting screw. By pressing a button, the support plate and the blocking plate are simultaneously deployed and raised to form a protective railing and prevent patients from falling out of bed.

Benefits of technology

This design allows the support plate to unfold regardless of which button the patient presses, avoiding cumbersome operations. Furthermore, the gradual raising of the barrier plate prevents secondary injury to the patient.

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Abstract

The nursing emergency protection device for preventing the patient from falling off the bed comprises a bed board, an emergency protection mechanism used for preventing the patient from falling off the bed is arranged at the bottom of the bed board, the emergency protection mechanism comprises U-shaped seats, the U-shaped seats are symmetrically fixed to the bottom of the bed board, and supporting plates are arranged in U-shaped grooves of the two U-shaped seats in a matched and sliding mode. The ends of the supporting plates are provided with barrier plates capable of being adjusted in a lifting mode, a two-way lead screw is rotationally connected between the two U-shaped bases, sliding blocks are integrally arranged at the ends of the bottoms of the two supporting plates, the two sliding blocks are symmetrically connected to the two ends of the two-way lead screw in a threaded mode, and a worm gear is fixedly installed on the outer side of the middle of the two-way lead screw. According to the emergency protection device, in the unfolding process of the two supporting plates, the barrier plate is gradually lifted to form a protective fence, the situation that a patient falls off a bed is effectively avoided, the barrier plate is gradually lifted along with unfolding of the supporting plates, and the situation that the barrier plate is suddenly lifted to impact the body of the patient to cause secondary injury is also avoided.
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Description

Technical Field

[0001] This utility model relates to the field of patient fall prevention technology, specifically an emergency protection device for preventing patients from falling from bed in nursing care. Background Technology

[0002] Postoperative patients often require prolonged bed rest during hospitalization. Hospital beds are typically single beds, and people may fall out of bed unnoticed, which can worsen their condition. Bed railings are designed to prevent people from falling out of bed while sleeping. These railings are usually installed along the edges of the bed. To further prevent falls, hospitals now also install guardrails on hospital beds to prevent patients from falling out of bed.

[0003] Traditional nursing beds typically have manually adjustable guardrails. Patients can manually raise the guardrails when they want to sleep, but this requires caregivers to lower them again when the patient gets out of bed, which is cumbersome and wastes caregivers' time. Furthermore, current nursing beds with emergency protection usually raise the guardrails immediately when the patient is lying on the outside of the bed to intercept the fall. However, during the raising process, the patient's body is likely to be at the edge of the bed, and the high impact can easily cause secondary injury to the patient. Therefore, we propose an emergency protection device for preventing patients from falling out of bed. Utility Model Content

[0004] The purpose of this invention is to provide an emergency protection device for preventing patients from falling out of bed in nursing care, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an emergency protection device for preventing patients from falling out of bed, comprising a bed board, wherein the bottom of the bed board is provided with an emergency protection mechanism for preventing patients from falling out of bed, the emergency protection mechanism comprising a U-shaped seat, wherein the bottom of the bed board is symmetrically fixed with U-shaped seats, and a support plate is slidably provided in the U-shaped groove of each of the two U-shaped seats, and an adjustable blocking plate is provided at the end of the support plate.

[0006] Preferably, a bidirectional lead screw is rotatably connected between the two U-shaped seats, and a slider is integrally provided at the bottom end of each of the two support plates. The two sliders are symmetrically threaded to the two ends of the bidirectional lead screw. A worm gear is fixedly installed on the outer side of the middle part of the bidirectional lead screw. A mounting plate is symmetrically fixed at the bottom of the bed board outside the worm gear, and a worm is rotatably connected between the two mounting plates. The worm and the worm gear are meshed together. A servo motor is fixedly installed on the side wall of the mounting plate, and the output shaft end of the servo motor is fixed to the worm by the mounting plate.

[0007] Preferably, the top two ends of the bed board are symmetrically provided with strip-shaped pressing keys, and the strip-shaped pressing keys are electrically connected to servo motors.

[0008] Preferably, an L-shaped plate is fixed to the bottom end of the support plate away from the slider, and a lifting screw is rotatably connected between the L-shaped plate and the support plate. A drive motor is fixedly installed at the bottom of the L-shaped plate, and the output shaft end of the drive motor extends into the drive motor and is fixed to the lifting screw. A lifting block is integrally provided at the bottom end of the blocking plate, and the lifting block is threaded to the outside of the lifting screw.

[0009] Preferably, limit rods are symmetrically fixed between the L-shaped plate and the support plate on the outside of the lifting screw, and vertical limit holes are symmetrically opened on the top of the lifting block. The two limit rods are respectively slidably connected in the two limit holes.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model installs strip-shaped pressing keys on both sides of the bed board. No matter which strip-shaped pressing key the patient presses, it will trigger the servo motor to work, causing the two support plates to unfold and increase the width of the bed board, thereby achieving the purpose of preventing the patient from falling out of bed.

[0012] 2. In this utility model, the blocking plate gradually rises during the unfolding of the two support plates, forming a protective railing, which effectively prevents the patient from falling out of bed. As the support plates unfold, the blocking plate gradually rises, which also avoids the situation where the sudden rise of the blocking plate will cause secondary injury to the patient's body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the connection structure at the bottom of the bed board of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 3 This is an enlarged structural diagram of point A of this utility model.

[0016] In the diagram: 1. Bed board; 2. Emergency protection mechanism; 3. Strip-shaped push button; 4. U-shaped seat; 5. Two-way lead screw; 6. Support plate; 7. Blocking plate; 8. Slider; 9. Worm gear; 10. Mounting plate; 11. Worm; 12. Servo motor; 13. L-shaped plate; 14. Lifting lead screw; 15. Lifting block; 16. Drive motor; 17. Limit rod. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3 This utility model provides a technical solution: an emergency protection device for preventing patients from falling out of bed, including a bed board 1, an emergency protection mechanism 2 for preventing patients from falling out of bed is provided at the bottom of the bed board 1, the emergency protection mechanism 2 includes a U-shaped seat 4, the bottom of the bed board 1 is symmetrically fixed with U-shaped seats 4, and a support plate 6 is slidably arranged in the U-shaped groove of each of the two U-shaped seats 4, and the end of the support plate 6 is provided with a height-adjustable blocking plate 7.

[0019] It should be noted that the support plates 6 at both ends of the bottom of the bed board 1 can be unfolded to increase the width of the bed board 1. During the unfolding of the two support plates 6, the blocking plate 7 also gradually rises to form a guardrail, which effectively prevents the patient from falling out of bed. As the support plates 6 unfold and the blocking plate 7 gradually rises, it also avoids the situation where the sudden rise of the blocking plate 7 will cause secondary injury to the patient's body.

[0020] A bidirectional lead screw 5 is rotatably connected between two U-shaped seats 4. A slider 8 is integrally provided at the bottom end of each of the two support plates 6, and the two sliders 8 are symmetrically threaded to the two ends of the bidirectional lead screw 5. A worm gear 9 is fixedly installed on the outer side of the middle part of the bidirectional lead screw 5. A mounting plate 10 is symmetrically fixed at the bottom of the bed plate 1 outside the worm gear 9, and a worm 11 is rotatably connected between the two mounting plates 10. The worm 11 and the worm gear 9 are meshed together. A servo motor 12 is fixedly installed on the side wall of the mounting plate 10, and the output shaft end of the servo motor 12 is fixed to the worm 11.

[0021] It should be noted that when using this utility model, the patient lies on the bed, and the two strip-shaped pressing keys 3 are respectively installed on the two edges of the bed board 1. When the patient falls asleep and moves to either of the two strip-shaped pressing keys 3, the patient's body presses down on the strip-shaped pressing key 3. At this time, the strip-shaped pressing key 3 controls the servo motor 12 to work, and the servo motor 12 drives the worm gear 11 to rotate. Through the meshing connection between the worm gear 11 and the worm wheel 9, the bidirectional lead screw 5 rotates. Through the threaded connection between the two sliders 8 and the two ends of the bidirectional lead screw 5, the two support plates 6 are quickly separated and unfolded, increasing the area of ​​the bed board 1. At the same time as the support plates 6 unfold, the drive motor 16 works to drive the lifting lead screw 14 to rotate. Through the threaded connection between the lifting block 15 on the blocking plate 7 and the lifting lead screw 14, the blocking plate 7 is raised. The blocking plate 7 forms a guardrail to prevent the patient from falling out of bed.

[0022] The top two ends of the bed board 1 are symmetrically equipped with bar-shaped press keys 3, and the bar-shaped press keys 3 are electrically connected to the servo motor 12.

[0023] It should be noted that by installing strip-shaped pressing keys 3 on both sides of the bed board 1, the servo motor 12 will be triggered no matter which strip-shaped pressing key 3 the patient presses, causing the two support plates 6 to unfold and increase the width of the bed board 1, thereby preventing the patient from falling out of bed.

[0024] An L-shaped plate 13 is fixed to the bottom of the support plate 6 away from the slider 8, and a lifting screw 14 is rotatably connected between the L-shaped plate 13 and the support plate 6. A drive motor 16 is fixedly installed at the bottom of the L-shaped plate 13, and the output shaft end of the drive motor 16 extends into the drive motor 16 and is fixed to the lifting screw 14. A lifting block 15 is integrally provided at the bottom of the blocking plate 7, and the lifting block 15 is threaded to the outside of the lifting screw 14.

[0025] It should be noted that when the support plate 6 is unfolded, the drive motor 16 drives the lifting screw 14 to rotate. The lifting block 15 on the blocking plate 7 is connected to the lifting screw 14 by thread, which raises the blocking plate 7. The blocking plate 7 forms a guardrail to prevent the patient from falling out of bed.

[0026] Limiting rods 17 are symmetrically fixed between the L-shaped plate 13 and the support plate 6 on the outside of the lifting screw 14. Vertical limiting holes are symmetrically opened on the top of the lifting block 15, and the two limiting rods 17 are slidably connected in the two limiting holes respectively.

[0027] It should be noted that the setting of the limit rod 17 ensures the smooth lifting and lowering of the lifting block 15, thereby ensuring the smooth lifting and lowering of the blocking plate 7.

[0028] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A care patient fall prevention emergency protection device for preventing a patient from falling out of a bed, characterized by, The application relates to a bed plate (1) provided with an emergency protection mechanism (2) for preventing patients from falling off the bed, wherein the bottom of the bed plate (1) is symmetrically fixed with U-shaped seats (4), the U-shaped grooves of the two U-shaped seats (4) are symmetrically provided with support plates (6) in sliding fit, and the end of the support plate (6) is provided with a liftable and adjustable blocking plate (7).

2. A patient care anti-falling bed emergency protection device according to claim 1, characterized in that: A bidirectional screw rod (5) is rotationally connected between the two U-shaped seats (4), the bottom end of each of the two support plates (6) is integrally provided with a sliding block (8), the two sliding blocks (8) are symmetrically screwed on the two ends of the bidirectional screw rod (5), a worm wheel (9) is fixedly installed on the outer side of the middle portion of the bidirectional screw rod (5), the bottom of the bed plate (1) is symmetrically fixed with mounting plates (10) outside the worm wheel (9), a worm (11) is rotationally connected between the two mounting plates (10), the worm (11) and the worm wheel (9) are meshingly connected, a servo motor (12) is fixedly installed on the side wall of the mounting plate (10), and the output shaft end of the servo motor (12) penetrates through the mounting plate (10) and is fixed with the worm (11).

3. The patient care emergency protection device of claim 1, wherein: The top of the bed plate (1) is symmetrically provided with strip-shaped pressing keys (3) at both ends, and the strip-shaped pressing keys (3) are electrically connected with the servo motor (12).

4. The patient care emergency protection device of claim 2, wherein: The bottom of the support plate (6) is fixed with an L-shaped plate (13) away from the sliding block (8), a lifting screw rod (14) is rotationally connected between the L-shaped plate (13) and the support plate (6), a driving motor (16) is fixedly installed on the bottom of the L-shaped plate (13), the output shaft end of the driving motor (16) penetrates into the driving motor (16) and is fixed with the lifting screw rod (14), the bottom end of the blocking plate (7) is integrally provided with a lifting block (15), and the lifting block (15) is screwedly connected outside the lifting screw rod (14).

5. A patient care anti-falling bed emergency protection device according to claim 4, characterized in that: The L-shaped plate (13) and the support plate (6) are symmetrically fixed with limiting rods (17) outside the lifting screw rod (14), the top of the lifting block (15) is symmetrically provided with limiting holes in the vertical direction, and the two limiting rods (17) are slidingly connected in the two limiting holes.