A medical bed guardrail state recognition structure

Abstract

The utility model discloses a medical bed guardrail state recognition structure, including hinged body, the hinged body includes the base installation in the lateral portion of bed body, big arm is hinged in the downside of base, the complex arm is hinged in the downside of base, and the base is connected guardrail through big arm and complex arm, and the base, big arm, complex arm and guardrail form a parallelogram structure, and the outside of base is equipped with magnet component, and big arm is provided with the closed chamber for installing sensor to one side of base, and the magnet component is opposite and fits in the state of lifting to the place of guardrail.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a guardrail status recognition structure for a medical bed. Background Technology

[0002] When using existing medical beds, nursing staff need to frequently check whether the bed rails are in the upright and locked position to reduce medical accidents caused by patients falling out of bed. When the medical bed is performing certain functions, nursing staff need to pay special attention to ensure that the bed rails are in the upright and locked position. However, in some emergency situations, the protective function of the bed rails may be neglected, and the bed rails may be forgotten to be locked, creating safety hazards. Summary of the Invention

[0003] The purpose of this invention is to provide a status recognition structure for a medical bed guardrail, which converts the lifting and lowering motion of the guardrail into the precise fitting and separation of the magnetic induction component, thereby directly converting the mechanical position into a clear electrical signal, realizing automatic status recognition and bed locking, effectively preventing risks such as falling from the bed, and solving the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A medical bed rail status recognition structure includes a hinge body. The hinge body includes a base mounted on the side of the bed, a main arm hinged to the lower side of the base, and a secondary arm hinged to the lower side of the base. The base is connected to the rail via the main arm and the secondary arm. The base, main arm, secondary arm, and rail form a parallelogram structure. A magnetic component is mounted on the outer side of the base. A closed chamber for mounting a sensor is provided on the side of the main arm facing the base. When the rail is raised to its position, the magnetic component and the sensor are directly opposite each other and in contact.

[0005] Preferably, the magnet component includes a magnet mounting base and a permanent magnet, the magnet mounting base being fixedly mounted on the outside of the base, and the permanent magnet being embedded in the groove of the magnet mounting base.

[0006] Preferably, the magnet mounting base is fixedly mounted on the base by a first bolt.

[0007] Preferably, the enclosed chamber is formed by the large arm and the cover plate fixed thereon.

[0008] Preferably, a sensor mounting base is provided inside the cavity.

[0009] Preferably, the sensor mounting base is fixed to the inside of the cover plate by a second bolt.

[0010] Preferably, the sensor mounting base has a groove at its center, and the sensor is mounted in the groove.

[0011] Preferably, the sensor's lead wire passes through a pre-set hole or channel in the hinge body's pivot structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a combination of cooperating permanent magnets and sensors on the swinging components, ensuring precise contact when the guardrail is in position. This design directly converts mechanical position into a clear electrical signal. This physical contact detection method offers strong anti-interference capabilities and avoids misjudgments. The "on" or "off" signals generated by the sensors are transmitted in real time to the bed control center, enabling timely permission or prohibition of specific bed movements and triggering corresponding alarms. This significantly reduces the risk of patients falling out of bed due to abnormal guardrail status, comprehensively improving the safety level for bedridden patients. Attached Figure Description

[0013] Figure 1 This is the first axonometric view of the overall structure of this utility model; Figure 2 This is a second axonometric view of the overall structure of this utility model; Figure 3 This is a diagram showing the sensor position after the cover plate has been removed. Figure 4 This is a schematic diagram of the bonding between the sensor and the permanent magnet of this utility model; Figure 5 This is an exploded view of the magnet mounting base and the base of this utility model; Figure 6 This is an exploded view of the sensor mounting base and cover plate of this utility model.

[0014] In the diagram: 1. Base; 2. Main arm; 3. Second arm; 4. Sensor; 5. Guardrail; 6. First bolt; 7. Permanent magnet; 8. Magnet mounting base; 9. Cover plate; 10. Second bolt; 11. Sensor mounting base. Detailed Implementation

[0015] 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.

[0016] To address the issue of untimely manual monitoring in existing technologies, which can lead to patients falling out of bed due to inadequate safety railings when the bed is raised, the following technical solution is proposed. Please refer to [link / reference]. Figure 1-6 ; The hinge body, as a key component connecting the guardrail 5 to the bed frame, includes a base 1, a main arm 2, and a secondary arm 3. The base 1 is installed on the side of the bed frame, the main arm 2 is hinged to the lower side of the base 1, and the secondary arm 3 is hinged to the lower side of the base 1. The base 1 is connected to the guardrail 5 through the main arm 2 and the secondary arm 3. The base 1, the main arm 2, the secondary arm 3, and the guardrail 5 form a parallelogram structure. The main arm 2 and the secondary arm 3 swing upward to raise the guardrail 5 and swing downward to lower the guardrail 5.

[0017] A magnet component is provided on the outside of the base 1. The magnet component includes a permanent magnet 7 and a magnet mounting base 8. The magnet mounting base 8 is mounted on the base 1 by a first bolt 6, and the permanent magnet 7 is embedded in the groove of the magnet mounting base 8.

[0018] A cover plate 9 is provided on the side of the upper arm 2 facing the base 1. A closed chamber for installing the sensor 4 is formed between the cover plate 9 and the upper arm 2. A sensor mounting base 11 is provided in the chamber. The sensor 4 is installed in the groove at the center of the sensor mounting base 11. The sensor mounting base 11 is fixed to the inside of the cover plate 9 by the second bolt 10. This hidden installation design effectively protects the precision electronic components and maintains the flatness and aesthetics of the hinge. The sensor 4 is a magnetic field-sensitive on / off sensor such as a Hall sensor. The lead wire of the sensor 4 needs to be carefully straightened and passed through the pre-drilled holes or channels on the hinge shaft structure, and finally merged into the wiring harness of the medical bed body.

[0019] The positions of the magnet mounting base 8 and the sensor mounting base 11 need to be precisely calculated to ensure that the sensor 4 and the permanent magnet 7 are aligned and in contact after the upper arm 2 and the lower arm 3 swing upward into place.

[0020] When medical staff raise the guardrail 5 to a fully upright and locked position, the upper arm 2 and the secondary arm 3 close. During this process, the permanent magnet 7 gradually approaches and eventually adheres to the sensor 4 fixed on the upper arm 2. The sensor 4 changes state under the action of the magnetic field and outputs a "connect" signal. This signal is transmitted to the lifting controller of the medical bed through a cable. The lifting controller determines that the corresponding guardrail 5 is in the raised state. At this time, the medical bed is allowed to perform actions that may pose risks, such as tilting or raising the back.

[0021] Conversely, when guardrail 5 is lowered and the hinges open, the upper arm 2 and the lower arm 3 separate, causing the magnetic field strength to weaken below the threshold. Sensor 4 then flips its state and outputs a "disconnect" signal. The lifting controller immediately determines that guardrail 5 has left the protective position and transmits the "disconnect" signal to the nurses' station via the hospital's local area network to issue an audio-visual alarm to alert medical staff. It also prohibits the execution of tilting or lifting commands, thus forming an effective active safety protection closed loop, which greatly reduces the risk of patients being injured due to accidental falls from the bed.

[0022] Working principle: When medical staff operate the guardrail 5, its movement is transmitted through the hinge structure. The hinge body serves as the core of the connection, with its base 1 fixed to the bed frame. The upper arm 2 and the secondary arm 3 are respectively hinged to the lower side of the base 1. Together with the guardrail 5, the three form a parallelogram linkage mechanism. This transforms the lifting and lowering movement of the guardrail 5 into the synchronous swinging of the upper arm 2 and the secondary arm 3 around the hinge point of the base 1.

[0023] As the guardrail 5 is raised to its fully upright position and locked, the main arm 2 and the secondary arm 3 swing upwards and close. At this time, the permanent magnet 7, fixed within the magnet mounting base 8 on the outside of the base 1, gradually approaches the sensor 4, which is hidden within the enclosed chamber inside the main arm 2. This chamber consists of the main arm 2 and a cover plate 9. The sensor 4 is securely mounted on the cover plate 9 via a second bolt 10 through a sensor mounting base 11. When the hinge is fully closed, the permanent magnet 7 and the sensor 4 are precisely aligned and in contact. Under the influence of the strong magnetic field, the sensor 4 changes state and outputs a "connect" signal.

[0024] The signal is led out from the cavity, passes through the hinge shaft structure, converges into the bed's wiring harness, and is ultimately transmitted to the bed's control center. The control center continuously monitors this signal. Upon receiving a "connected" signal, it determines that the guardrail 5 is in a safe raised state, allowing the bed to tilt or raise its back. Conversely, when the guardrail 5 is lowered, the hinge opens, and the main arm 2 and secondary arm 3 extend outwards, causing the permanent magnet 7 to separate from the sensor 4, weakening the magnetic field. The sensor 4's state then reverses, and the output signal becomes "disconnected." Upon detecting the disappearance of this signal, the control center immediately determines that the guardrail 5 has been lowered, thus activating the safety response mechanism, such as issuing an alarm or locking the bed's power structure, effectively preventing the risk of patient falls and forming a reliable active safety protection closed loop.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] 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.

Claims

1. A medical bed rail status recognition structure, comprising a hinge body, characterized in that, The hinge body includes a base (1), a main arm (2) and a secondary arm (3). The base (1) is installed on the side of the bed. The main arm (2) is hinged to the lower side of the base (1). The secondary arm (3) is hinged to the lower side of the base (1). The base (1) is connected to the guardrail (5) through the main arm (2) and the secondary arm (3). The base (1), the main arm (2), the secondary arm (3) and the guardrail (5) form a parallelogram structure. A magnetic component is installed on the outside of the base (1). A closed chamber for installing a sensor (4) is provided on the side of the main arm (2) facing the base (1). When the guardrail (5) is raised to the position, the magnetic component and the sensor (4) are directly facing each other and attached.

2. The medical bed guardrail status recognition structure according to claim 1, characterized in that, The magnet component includes a magnet mounting base (8) and a permanent magnet (7). The magnet mounting base (8) is fixedly installed on the outside of the base (1), and the permanent magnet (7) is embedded in the groove of the magnet mounting base (8).

3. The medical bed guardrail status recognition structure according to claim 2, characterized in that, The magnet mounting base (8) is fixedly mounted on the base (1) by the first bolt (6).

4. The medical bed guardrail status recognition structure according to claim 3, characterized in that, The enclosed chamber is formed by the large arm (2) and the cover plate (9) fixed thereon.

5. The medical bed guardrail status recognition structure according to claim 4, characterized in that, A sensor mounting base (11) is provided in the cavity.

6. The medical bed guardrail status recognition structure according to claim 5, characterized in that, The sensor mounting base (11) is fixed to the inside of the cover plate (9) by a second bolt (10).

7. The medical bed guardrail status recognition structure according to claim 6, characterized in that, The sensor mounting base (11) has a groove at its center, and the sensor (4) is installed in the groove.

8. The medical bed guardrail status recognition structure according to claim 7, characterized in that, The lead wire of the sensor (4) passes through a pre-set hole or channel in the pivot structure of the hinge body.

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