Medical sickbed capable of being locked by one key

Abstract

The utility model relates to the field of medical instruments. The utility model discloses a medical sickbed capable of being locked through one key. The medical sickbed comprises a bed body, a bed baffle, a headboard and a tail board. The supporting legs are arranged below the bed body at intervals, the ends, away from the bed body, of the supporting legs are concaved inwards to form supporting grooves, and main electromagnetic parts are arranged on one sides in the grooves. The universal wheels are installed at the far ends of the supporting legs respectively and comprise gaskets, rotating shafts, supports and wheels, the abutting fixing parts are arranged in the supporting grooves, driven electromagnetic parts are arranged at the inner ends close to the grooves, and extrusion parts are arranged at the far ends; the power source is installed on the bed body and electrically connected with the master electromagnetic part and the slave electromagnetic part, the switch is arranged on one side of the headboard, and the supporting groove, the gasket through hole, the rotating shaft through hole and the support through hole are communicated. When the bed body needs to be fixed, the power supply can supply power to the main electromagnetic part and the auxiliary electromagnetic part by operating the power switch. The main electromagnetic part and the auxiliary electromagnetic part generate magnetic force after being powered on, repulsive force is generated between the main electromagnetic part and the auxiliary electromagnetic part so that the abutting fixing part can move outwards, the extrusion part of the abutting fixing part can press the wheel, and the wheel is prevented from rotating.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a medical bed that can be locked with one click. Background Technology

[0002] Medical beds, as crucial equipment in healthcare settings, require efficient switching between mobility and stability. Traditional medical beds often employ manual mechanical locking devices, such as foot brakes or rotary knobs. These methods necessitate bending over for operation, which can lead to delayed locking in emergencies due to the cumbersome process. Furthermore, wear and tear on mechanical components over time can cause locking failures, posing a safety hazard to patients who may be injured by accidental bed slippage. In addition, existing beds lack real-time monitoring of bed load and cannot automatically adjust the locking status based on changes in patient or bed weight, resulting in insufficient intelligence and failing to meet the higher demands of modern medical care for equipment safety and convenience.

[0003] While some improvement solutions attempt to incorporate electric drive or sensor technology, these are mostly limited to localized structural optimizations and fail to form a systemic solution. For example, simple electric locking devices still rely on manual triggering, failing to achieve efficient one-button control. Furthermore, independently designed weight monitoring modules lack linkage with the locking mechanism, making it impossible to intelligently drive the locking action based on weight data, resulting in fragmented device functionality. Simultaneously, traditional locking devices have a small contact area between the pressing components and wheels, resulting in insufficient friction. This makes them prone to slippage on uneven surfaces or when the bed load changes. Moreover, the lack of visual status feedback and data interaction interfaces makes it difficult for medical staff to quickly obtain information on bed weight and locking status, impacting nursing efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses a medical bed with one-button locking that is simple to operate, has high locking reliability, and is highly intelligent.

[0005] This utility model discloses a medical bed that can be locked with one key, which includes a bed body, the bed body including a bed rail on one side, a headboard on one end and a bed tailboard on the other end.

[0006] The support legs include at least four legs, which are spaced apart and arranged under the bed. The end of the support leg away from the bed is recessed inward to form a support groove, and a main electromagnetic part is provided on one side inside the support groove.

[0007] The casters include at least four casters, each of which is located on the side of at least four support legs away from the bed frame. Each caster includes a pad, a swivel shaft, a bracket, and a wheel. The pad has a through hole, the width of which is smaller than the width of the support groove. The pad is fixedly connected to the end of the support leg away from the bed frame. The swivel shaft is fixedly located inside the through hole and has a through hole. The bracket is connected to the end of the swivel shaft away from the support leg and has a through hole. The wheel is rotatably mounted on the bracket.

[0008] The abutting and fixing part is provided in the support groove. An electromagnetic part is provided at one end of the abutting and fixing part near the inside of the support groove. A limiting part larger than the through hole of the gasket is provided on one side of the abutting and fixing part. A squeezing part is provided at the end of the abutting and fixing part away from the support leg.

[0009] The power supply is located on the bed frame and is electrically connected to the main electromagnetic unit and the slave electromagnetic unit. The power supply is equipped with a power switch, which is located on one side of the headboard.

[0010] The support groove, gasket through hole, rotating shaft through hole and bracket through hole are connected.

[0011] Furthermore, the rotating shaft is provided with several through rotating limiting holes, and at least three protrusions corresponding to the rotating limiting holes are evenly provided on one side of the abutting fixing part.

[0012] Furthermore, the power switch is a main switch used to control the current direction of the main electromagnetic part and a slave switch used to control the current direction of the slave electromagnetic part.

[0013] Furthermore, the extrusion section has an arc shape corresponding to the shape of the wheel, and the side of the extrusion section closest to the wheel is roughened.

[0014] Furthermore, a weight sensor is installed between the support leg and the bed frame to detect the weight borne by the bed frame, and a controller is installed on the bed frame, with the weight sensor and controller electrically connected.

[0015] Furthermore, the bed is equipped with a display screen for displaying the bed weight data detected by the weight sensor in real time, and the display screen is electrically connected to the controller.

[0016] Furthermore, the weight sensor is equipped with a weight threshold, and when the weight exceeds the weight threshold, the display will show the result and an alarm will sound.

[0017] Beneficial effects:

[0018] This utility model discloses a medical bed capable of one-button locking. Its main function is to quickly fix and unlock the casters by powering and controlling the main and slave electromagnetic units, thereby facilitating bed movement or stabilization. The bed consists of a side rail, a headboard at one end, and a footboard at the other. At least four support legs are spaced apart under the bed to provide stable support. Each support leg has a caster mounted on the side furthest from the bed. The caster includes a washer, a rotating shaft, a bracket, and a wheel. The washer is fixedly connected to the support leg and has a through hole. The rotating shaft passes through the through hole, and the bracket is connected to the end of the rotating shaft furthest from the support leg. The wheel is rotatably mounted on the bracket. A retaining part is provided within the support groove of the support leg. A slave electromagnetic unit is located at the end near the inside of the support groove, a limiting part is located on the side, and a pressing part is located at the end furthest from the support leg. The limiting part prevents the retaining part from excessively moving and falling out of the support groove, and also prevents the retaining part from excessively pressing the wheel. When the bed needs to be secured, power is supplied to the main and slave electromagnetic units by operating the power switch. The energized units generate magnetic force, creating a repulsive force that moves the locking mechanism outwards. This causes the pressing part of the locking mechanism to press against the wheels, preventing them from rotating and thus securing the bed. The core of the system lies in the ability to control the status of all casters with a single power switch, enabling one-button locking or unlocking. This greatly facilitates users in adjusting or securing the bed as needed, improving both ease of use and safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a medical bed in one embodiment of this application.

[0020] Figure 2 This is a schematic diagram of another structure of the medical bed in the embodiments of this application.

[0021] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0022] Figure 4 This is a schematic diagram of a medical bed in one embodiment of this application.

[0023] In the diagram: medical bed 100, bed frame 11, bed rails 111, headboard 112, footboard 113, controller 114, display screen 115, support legs 12, main electromagnetic unit 121, weight sensor 122, caster wheel 13, pad 131, rotating shaft 132, bracket 133, wheel 134, abutment fixing part 14, slave electromagnetic unit 141, limiting part 142, pressing part 143, protrusion 144, power supply 15, power switch 151, main switch 1511, slave switch 1512. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the specific embodiments of the present invention will be clearly and completely described below.

[0025] This application discloses a medical bed 100 that can be locked with one click, such as... Figure 1 As shown, it includes a bed frame 11, which includes a bed rail 111 on one side, a headboard 112 at one end, and a footboard 113 at the other end. Figure 2 and Figure 3 As shown, the support legs 12 include at least four, and the at least four support legs 12 are spaced apart below the bed body 11. The end of the support leg 12 away from the bed body 11 is recessed inward to form a support groove, and a main electromagnetic part 121 is provided on one side inside the support groove. The casters 13 include at least four casters 13, which are respectively disposed on the side of the at least four support legs 12 away from the bed frame 11. Each caster 13 includes a pad 131, a rotating shaft 132, a bracket 133, and a wheel 134. The pad 131 has a through hole, the width of which is smaller than the width of the support groove. The pad 131 is fixedly connected to the end of the support leg 12 away from the bed frame 11. The rotating shaft 132 is fixedly disposed in the through hole of the pad 131 and has a through hole. The bracket 133 is connected to the end of the rotating shaft 132 away from the support leg 12 and has a through hole. The wheel 134 is rotatably disposed on the bracket 133. A retaining and fixing part 14 is disposed within a support groove. An electromagnetic part 141 is provided at one end of the retaining and fixing part 14 near the interior of the support groove. A limiting part 142, larger than the through hole of the gasket 131, is provided on one side of the retaining and fixing part 14. A pressing part 143 is provided at the end of the retaining and fixing part 14 away from the support leg 12. For example... Figure 4As shown, a power supply 15 is mounted on the bed frame 11 and electrically connected to the main electromagnetic unit 121 and the slave electromagnetic unit 141. A power switch 151 is mounted on the power supply 15 and is located on one side of the headboard 112. The support groove, the through hole of the gasket 131, the through hole of the rotating shaft 132, and the through hole of the bracket 133 are interconnected. The main function of this invention, a medical bed 100 capable of one-button locking, is to use the power supply 15 to power and control the main electromagnetic unit 121 and the slave electromagnetic unit 141, enabling quick fixing and unlocking of the casters 13, thereby facilitating the movement or stabilization of the bed frame 11. The bed frame 11 consists of a side bed rail 111, a headboard 112 at one end, and a footboard 113 at the other end. At least four support legs 12 are spaced apart under the bed frame 11, providing stable support. Each support leg 12 has a caster 13 mounted on the side furthest from the bed frame 11. The caster wheel 13 includes a washer 131, a rotating shaft 132, a bracket 133, and a wheel 134. The washer 131 is fixedly connected to the support leg 12 and has a through hole thereon. The rotating shaft 132 passes through the through hole, and the bracket 133 is connected to the end of the rotating shaft 132 away from the support leg 12. The wheel 134 is rotatably mounted on the bracket 133. A contact fixing part 14 is provided within the support groove of the support leg 12. A slave electromagnetic part 141 is located at one end near the inside of the support groove, a limiting part 142 is located on the side, and a pressing part 143 is located at the end away from the support leg 12. The limiting part 142 prevents the contact fixing part 14 from moving excessively and falling out of the support groove, and also prevents the contact fixing part 14 from excessively pressing the wheel 134. When it is necessary to fix the bed body 11, the power supply 151 supplies power to the main electromagnetic part 121 and the slave electromagnetic part 141 by operating the power switch 151. When the main electromagnetic unit 121 and the slave electromagnetic unit 141 are energized, they generate magnetic force. The repulsive force between the main electromagnetic unit 121 and the slave electromagnetic unit 141 causes the abutting fixing part 14 to move outwards. This causes the pressing part 143 of the abutting fixing part 14 to press against the wheel 134, preventing the wheel 134 from rotating and thus fixing the bed body 11. The core of the entire system is that the state of all the casters 13 can be controlled by a single power switch 151, realizing a one-button locking or unlocking function. This greatly facilitates users in adjusting the position of the bed body 11 or fixing the bed body 11 as needed, improving ease of use and safety.

[0026] In one embodiment, the rotating shaft 132 is provided with a plurality of through-holes for rotation limiting, and at least three protrusions 144 corresponding to the rotation limiting holes are evenly provided on one side of the fixing part 14. The rotating shaft 132 is essentially a bearing that facilitates rotation. When fixing, it is necessary to ensure that the protrusions 144 correspond to the rotation limiting holes, but this requires manual adjustment. This application provides a plurality of rotation limiting holes, which can maximize the engagement of the protrusions 144. Even if the rotation limiting holes do not immediately engage with the protrusions 144, as long as some of the protrusions 144 are close to the rotation limiting holes, the rotating shaft 132 can be driven to rotate under the pressure of the engagement, thereby limiting the rotation shaft 132 by the protrusions 144 facing the rotation limiting holes.

[0027] In one implementation, power switch 151 is used as a main switch 1511 to control the current direction of the main electromagnetic unit 121 and a slave switch 1512 to control the current direction of the slave electromagnetic unit 141. By controlling the current direction of the main electromagnetic unit 121 with the main switch 1511 and the current direction of the slave electromagnetic unit 141 with the slave switch 1512, a dynamic magnetic relationship of attraction or repulsion can be formed between the two. When locked, the main electromagnetic unit 121 and the slave electromagnetic unit 141 form opposite pole attraction, driving the pressing part 143 of the abutment fixing part 14 to tightly adhere to the wheel 134. The arc-shaped pressing part 143 presses the wheel surface with magnetic attraction pressure, and the rough surface increases the friction force to achieve rigid locking. When unlocking, the current direction is switched so that the two poles repel each other, quickly pushing away the abutment fixing part 14, releasing the pressure on the wheel 134, ensuring that the omnidirectional wheel 13 can rotate freely, and avoiding the jamming problem of traditional mechanical locking. In conjunction with the current magnitude control, the magnetic strength can be indirectly adjusted so that the pressure of the pressing part 143 on the wheel 134 can adapt to different scenarios, improving system compatibility. The power switch 151 integrates the functions of master and slave switches 1512, allowing medical staff to complete the entire locking or unlocking process with a single press, avoiding traditional multi-step operations, making it especially suitable for emergency scenarios.

[0028] In one implementation, the compression part 143 is arc-shaped, corresponding to the shape of the wheel 134, and the side of the compression part 143 near the wheel 134 is roughened. The arc shape of the compression part 143, corresponding to the shape of the wheel 134, allows for maximum contact with the surface of the wheel 134. Compared to a conventionally shaped compression part 143, the arc design significantly increases the contact area. During locking, under the same pressure, a larger contact area results in greater friction, thus more effectively preventing the wheel 134 from rotating and achieving a secure lock. For example, when a hospital bed needs to be fixed in a certain position, this design ensures that the wheel 134 will not easily slip or rotate, guaranteeing the stability and safety of the bed. Roughening the side of the compression part 143 near the wheel 134 further increases the friction between the compression part 143 and the wheel 134. The rough surface increases the coefficient of friction between the two components. When the pressing part 143 contacts the wheel 134 and applies pressure, the rough surface grips the wheel 134 better, preventing relative slippage. The arc-shaped pressing part 143 distributes the pressure generated during locking evenly across the surface of the wheel 134. An irregular shape of the pressing part 143 could lead to excessive local pressure, damaging the wheel 134 and affecting its lifespan. The arc design ensures more even pressure distribution, reducing the risk of localized damage to the wheel 134, extending its service life, and lowering maintenance costs. Although the roughness increases friction, the even pressure distribution prevents excessive localized friction, thus reducing wear on the wheel 134 and the pressing part 143 itself. Compared to sharp or irregular contact methods, the arc-shaped and rough pressing part 143 provides more even wear with the wheel 134, preventing excessive wear in any one area and ensuring long-term stable operation of the locking device and the wheel 134.

[0029] In one implementation, a weight sensor 122 for detecting the weight borne by the bed 11 is installed between the support leg 12 and the bed frame 11. A controller 114 is installed on the bed frame 11, and the weight sensor 122 and controller 114 are electrically connected. The medical bed 100 has a weight limit; exceeding this limit can damage the bed frame 11 structure and even endanger patient safety. The weight sensor 122 can monitor the weight borne by the bed frame 11 in real time. When the detected weight approaches or exceeds a preset safety threshold, the controller 114 can trigger a corresponding protection mechanism, such as issuing an alarm to remind medical staff, to avoid safety accidents caused by overload. When a patient is lying on the bed, if the weight of the bed frame 11 changes suddenly, such as when the patient gets up or makes a large movement, it may affect the stability of the bed. The weight sensor 122 can promptly sense these changes and transmit the information to the controller 114. The controller 114 can control the bed's locking device as needed to ensure that the bed is locked at an appropriate time, preventing accidental movement that could cause the patient to fall or suffer other injuries. Changes in a patient's weight are one of the important indicators reflecting their health status. By continuously monitoring the patient's weight in bed using a weight sensor 122, medical staff can obtain dynamic information on changes in the patient's weight, assisting in diagnosis and adjustment of treatment plans. For example, for patients with edema, malnutrition, or other conditions, weight changes can reflect the progression of the disease and the effectiveness of treatment. Based on the data from the weight sensor 122, medical staff can understand the load-bearing capacity of different beds and rationally allocate nursing resources. For heavier patients requiring more nursing attention, experienced nurses can be prioritized or more suitable nursing equipment can be provided.

[0030] As one implementation method, the bed 11 is also equipped with a display screen 115 for real-time display of the weight data of the bed 11 detected by the weight sensor 122. The display screen 115 is electrically connected to the controller 114. Medical staff can directly view the patient's weight and the load data of the bed 11 in real time at the bedside without the need for additional equipment, avoiding back-and-forth operations or reliance on system queries. This allows for quick assessment of the patient's condition or whether the bed load is safe, improving work efficiency. The display screen 115, weight sensor 122, and controller 114 form a detection-processing-display closed loop, allowing medical staff to intuitively obtain the load information of the bed 11, assisting in judging the patient's activity status, adjusting nursing measures in a timely manner, and reducing nursing oversights caused by information lag. When the weight sensor 122 detects that the load on the bed 11 exceeds a preset safety threshold, such as the maximum weight-bearing capacity of the bed or the weight limit corresponding to the patient's condition, the controller 114 can display a warning message in real time on the display screen 115 in a bright color or flashing font. Simultaneously, it will be accompanied by an audible and visual alarm such as a buzzer, providing a double reminder to medical staff or patients to handle the situation promptly and avoid structural damage to the bed 11 or the risk of patient falls due to overloading. The display screen 115 can dynamically display the weight fluctuation trend, such as a sudden increase / decrease in weight within a short period, helping medical staff quickly determine if there are any abnormalities, such as a sudden change in the patient's condition causing drastic changes in position, or displacement and vibration caused by the failure of the bed wheel locks, facilitating timely intervention and reducing safety hazards.

[0031] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A medical bed capable of being locked with a single button, characterized in that, include: The bed frame includes a bed rail on one side, a headboard on one end, and a footboard on the other end. The support legs include at least four legs, which are spaced apart and arranged under the bed. The end of the support leg away from the bed is recessed inward to form a support groove, and a main electromagnetic part is provided on one side inside the support groove. The casters include at least four casters, each of which is located on the side of at least four support legs away from the bed frame. Each caster includes a pad, a swivel shaft, a bracket, and a wheel. The pad has a through hole, the width of which is smaller than the width of the support groove. The pad is fixedly connected to the end of the support leg away from the bed frame. The swivel shaft is fixedly located inside the through hole and has a through hole. The bracket is connected to the end of the swivel shaft away from the support leg and has a through hole. The wheel is rotatably mounted on the bracket. The abutting and fixing part is provided in the support groove. An electromagnetic part is provided at one end of the abutting and fixing part near the inside of the support groove. A limiting part larger than the through hole of the gasket is provided on one side of the abutting and fixing part. A squeezing part is provided at the end of the abutting and fixing part away from the support leg. The power supply is located on the bed frame and is electrically connected to the main electromagnetic unit and the slave electromagnetic unit. The power supply is equipped with a power switch, which is located on one side of the headboard. The support groove, gasket through hole, rotating shaft through hole and bracket through hole are connected.

2. A medical bed capable of one-click locking as described in claim 1, characterized in that: The rotating shaft is provided with several through rotating limiting holes, and at least three protrusions corresponding to the rotating limiting holes are evenly provided on one side of the abutting and fixing part.

3. A medical bed capable of one-click locking as described in claim 1, characterized in that: The power switch is a main switch used to control the direction of current in the main electromagnetic part and a slave switch used to control the direction of current in the slave electromagnetic part.

4. A medical bed capable of one-click locking as described in claim 1, characterized in that: The extrusion section has an arc shape that corresponds to the shape of the wheel, and the side of the extrusion section closest to the wheel is roughened.

5. A medical bed capable of one-click locking as described in claim 1, characterized in that: A weight sensor is installed between the support leg and the bed frame to detect the weight borne by the bed frame. A controller is installed on the bed frame, and the weight sensor and controller are electrically connected.

6. A medical bed capable of one-click locking as described in claim 5, characterized in that: The bed is also equipped with a display screen for displaying the bed weight data detected by the weight sensor in real time. The display screen is electrically connected to the controller.

7. A medical bed capable of one-click locking according to claim 6, characterized in that: The weight sensor is set with a weight threshold. When the weight exceeds the weight threshold, the display will show the result and an alarm will sound.

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