Bedridden patient weighing auxiliary device capable of wirelessly transmitting data
By designing a weighing aid device for bedridden patients that can wirelessly transmit data, and utilizing structures such as a mobile base and conveyor belt, automatic reset and height adjustment are achieved, solving the problems of cumbersome operation and poor versatility of existing devices, and improving operational efficiency and convenience.
Patent Information
- Application Number
- CN202511391321.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2025-11-28
Smart Images

Figure CN121015397A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of patient weighing technology, and more particularly to a bedridden patient weighing aid device capable of wirelessly transmitting data. Background Technology
[0002] Bedridden patients often require specialized weighing aids for weight monitoring due to their limited mobility. In medical care settings, accurate patient weight data is crucial for monitoring their condition and developing treatment plans. Therefore, convenient and efficient weighing equipment is needed to assist medical staff in their work.
[0003] In existing technologies, most weighing aids for bedridden patients are fixed structures with limited height adjustment. In practice, medical staff must manually move or adjust the device's position according to the bed height, which is not only labor-intensive but also cumbersome and time-consuming. Furthermore, bed heights vary between hospitals and wards, making fixed-structure weighing devices unsuitable for all types of beds, resulting in poor versatility and an inability to meet diverse clinical needs. Therefore, this paper proposes a weighing aid for bedridden patients capable of wireless data transmission to address these issues. Summary of the Invention
[0004] The purpose of this invention is to provide a weighing aid for bedridden patients that can wirelessly transmit data, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides a weighing assistance device for bedridden patients capable of wireless data transmission, comprising a movable base frame, a sliding frame slidably connected inside the movable base frame, fixed frames fixedly connected to the left and right sides of the front end of the sliding frame, a connecting rod slidably connected inside the fixed frame, a reset assembly provided inside the fixed frame, a connecting frame rotatably connected between the two connecting rods, a driving roller and a driven roller rotatably connected to both ends of the connecting frame respectively, a drive motor fixedly mounted on the connecting frame, the output shaft of the drive motor fixedly connected to one end of the driving roller, the driving roller and the driven roller being connected by a conveyor belt, a gear fixedly connected to the other end of the driving roller, a rack plate fixedly connected to the outside of the sliding frame for cooperating with the gear, an adjustment assembly provided on the rear side of the movable base frame, a protective shell fixedly connected to the outside of the right connecting rod, a motor fixedly connected inside the protective shell, and the drive end of the motor fixedly connected to the outside of the connecting frame; Preferably, the reset assembly includes a limiting plate, one side of which is fixedly connected to the outside of one end of the connecting rod. The inside of the fixing frame is provided with a sliding groove, and two springs are fixedly connected to one side of the inner wall of the sliding groove. The rear end of the sliding frame is internally threaded to the outside of the threaded rod. Preferably, the adjustment assembly includes a second motor, the bottom of which is fixedly connected to the outside of the movable base, a threaded rod is fixedly connected to the drive end of the second motor, and a limit collar is fixedly connected to the rear side of the movable base. Preferably, the end of the spring away from the sliding groove is fixedly connected to the outside of the limiting plate, and the outside of the limiting plate is slidably connected to the inner wall of the sliding groove; Preferably, the connecting rod is externally slidably connected to the front end through hole of the fixing frame, and the external teeth of the gear are meshing with the external teeth of the rack plate; Preferably, the inside of the limiting collar is rotatably connected to the outside of the threaded rod via a bearing, and an auxiliary wheel is rotatably connected to the rear bottom of the movable base; Preferably, a pressure sensor is fixedly connected to the outside of the connecting rod, a controller is fixedly connected to the outside of the left connecting rod, and a display screen is fixedly connected to the outside of the left connecting rod. Preferably, the controller has a built-in wireless communication module, and the controller is connected to the receiving terminal through the wireless communication module; Preferably, the movable base includes a base, a pressure sensor fixed to one end of the top of the base, and a stand fixed to the input end of the pressure sensor, and the sliding frame is slidably connected to the stand.
[0006] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the rotation of the conveyor belt drives the gears and racks to mesh, causing the mobile base to move. Combined with connecting rods, limiting plates, springs, and other structures, the auxiliary device is reset after the patient transfer is completed. During the patient transfer process, the device moves orderly according to a predetermined program, smoothly placing the patient back on the bed. The spring reaction force assists in the reset, reducing manual operation and the workload of medical staff. Moreover, this automatic reset method makes the entire operation process smooth and continuous, improving the efficiency of weighing and transfer operations, reducing the patient's waiting time during the transfer process, and enhancing the stability of the operation.
[0007] 2. In this invention, the screw rod driven by the second motor rotates, causing the sliding frame to slide within the movable base, thereby moving the fixed frame up and down. This allows for flexible adjustment of the fixed frame height. In actual use scenarios, different hospital beds have different heights. This structure can accurately adapt to various hospital bed heights, making it easy to adjust the device to be level with the hospital bed height. This greatly improves the ease of use of the device, eliminating the need for medical staff to manually adjust the device height, saving time and effort. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the structure of the fixing frame of the present invention; Figure 4 This is a schematic diagram of the gear structure of the present invention; Figure 5 This is a schematic diagram of the connecting rod of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the connector frame of the present invention; Figure 8 This is a schematic diagram of the limiting plate of the present invention.
[0009] Legend: 1. Movable base frame; 2. Sliding frame; 3. Fixed frame; 4. Connecting rod; 5. Connecting frame; 6. Conveyor belt; 7. Gear; 8. Protective shell; 9. Motor 1; 10. Rack plate; 11. Sliding groove; 12. Spring; 13. Limiting plate; 14. Motor 2; 15. Threaded rod; 16. Pressure sensor; 17. Controller; 18. Display screen; 19. Limiting collar; 20. Auxiliary wheel. Detailed Implementation
[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0011] Reference Figures 1 to 2One embodiment of the present invention provides a bedridden patient weighing assistance device capable of wirelessly transmitting data, including a movable base frame 1, which is the basic support structure of the entire device, facilitating the movement of the device in places such as wards and making it easy to approach bedridden patients. A sliding frame 2 is slidably connected inside the movable base frame 1. The sliding frame 2 slides inside the movable base frame 1 and moves up and down through adjustment components, thereby driving the fixed frame 3 and other components to adjust their height to adapt to different bed heights.
[0012] Reference Figures 3 to 4 Fixed frames 3 are fixedly connected to the left and right sides of the front end of the sliding frame 2. These fixed frames are used to install components such as the connecting rod 4, providing support and positioning to ensure the stability and accuracy of the connecting rod 4 during operation. The connecting rod 4 is slidably connected inside the fixed frame 3, allowing it to slide within the frame and change position according to work requirements. It connects to the connecting frame 5 and transmits power and position adjustment information. Externally, it houses components such as a pressure sensor 16, a controller 17, and a display screen 18, forming a crucial connection structure for the device to achieve weighing and control display functions.
[0013] The connecting rod 4 is externally slidably connected to the front end through hole of the fixing frame 3. This front end through hole provides guidance and support for the sliding of the connecting rod 4 on the fixing frame 3, ensuring the straightness and stability of the sliding of the connecting rod 4. The connecting rod 4 is internally rotatably connected to the connecting frame 5, which is used to install the conveyor belt 6 and provide rotational support for the conveyor belt 6, enabling it to rotate under the drive of the motor 9, thereby realizing the patient transfer function.
[0014] A conveyor belt 6 is rotatably connected inside the connecting frame 5. This conveyor belt rotates within the connecting frame 5, allowing for the transfer of the patient between the bed and the device. When the patient is transferred to the central position, a pressure sensor 16 detects their weight. A gear 7 is fixedly connected to one end of the conveyor belt 6 and meshes with a rack plate 10. As the conveyor belt 6 rotates, its meshing with the rack plate 10 causes the movable base frame 1 to move, assisting in the device's reset operation after the patient transfer is complete.
[0015] Reference Figures 5 to 6A protective shell 8 is fixedly connected to the outside of the right connecting rod 4. This shell protects the internal motor 9 from damage caused by dust, moisture, and other external factors, extending its service life and ensuring normal operation of the device. The motor 9 is also fixedly connected inside the protective shell 8. Its drive end is fixedly connected to the outside of the connecting frame 5, providing power for the rotation of the connecting frame 5 and enabling adjustment of the conveyor belt 6 angle, facilitating patient transfer and device reset. A rack plate 10 is fixedly connected to the outside of the sliding frame 2. It meshes with a gear 7. When the gear 7 rotates, force is transmitted through the meshing of the teeth, causing the movable base frame 1 to move, assisting in the reset operation of the device after patient transfer.
[0016] The fixed frame 3 is internally equipped with a reset assembly, which includes a limiting plate 13. One side of the limiting plate 13 is fixedly connected to the outside of one end of the connecting rod 4. When the connecting rod 4 moves, it slides within the sliding groove 11, which transmits the force of the spring 12 and limits the range of movement of the connecting rod 4, ensuring that the connecting rod 4 works within a suitable stroke. The limiting plate 13 is fixedly connected to the outside of one end of the connecting rod 4. The fixed frame 3 has a sliding groove 11 inside, which provides space and guidance for the sliding of the limiting plate 13, ensuring that the limiting plate 13 can slide smoothly under the action of the spring 12, thus realizing the reset function of the connecting rod 4.
[0017] Two springs 12 are fixedly connected to one side of the inner wall of the sliding groove 11. One end of each spring is fixed to the inner wall of the sliding groove 11, and the other end is fixed to the outside of the limiting plate 13. When the connecting rod 4 moves, it is stretched or compressed by force. Using its own elastic reaction force, the connecting rod 4 is assisted to reset after the force is removed, reducing manual operation and improving the convenience of the device. The end of the spring 12 away from the sliding groove 11 is fixedly connected to the outside of the limiting plate 13, and the outside of the limiting plate 13 is slidably connected to the inner wall of the sliding groove 11.
[0018] Reference Figures 6 to 8 An adjustment assembly is provided on the rear side of the movable base 1. The adjustment assembly includes a second motor 14, whose bottom is fixedly connected to the outside of the movable base 1. It provides power for the rotation of the threaded rod 15. Through the threaded connection between the threaded rod 15 and the sliding frame 2, the sliding frame 2 is driven to move up and down within the movable base 1, thereby adjusting the height of the fixed frame 3. The bottom of the second motor 14 is fixedly connected to the outside of the movable base 1. The drive end of the second motor 14 is fixedly connected to the threaded rod 15, which is threadedly connected to the rear end of the sliding frame 2. Driven by the second motor 14, the sliding frame 2 rotates, converting the rotational motion of the second motor 14 into the linear motion of the sliding frame 2, thereby realizing the up and down movement of the sliding frame 2 within the movable base 1, and thus adjusting the height of the device.
[0019] The rear end of the sliding frame 2 is internally threaded to the outside of the threaded rod 15. The threaded rod 15 is rotatably mounted inside the limiting collar 19 via a bearing. The limiting collar 19 is fixedly connected to the rear side of the movable base 1, providing sliding support and limiting function for the threaded rod 15. This ensures that the threaded rod 15 maintains linear motion during rotation, preventing deviation or shaking and improving the stability of the device operation. The pressure sensor 16 is used to detect the patient's weight information on the conveyor belt 6, converting the weight signal into an electrical signal to provide data support for patient weight measurement.
[0020] A controller 17 is fixedly connected to the outside of the left connecting rod 4. The controller 17 has a built-in wireless communication module and connects to a receiving terminal through the wireless communication module. It is used to start and stop the conveyor belt 6, coordinate the working sequence and status between various components, and ensure that the device performs weighing and patient transfer operations according to the predetermined program. A display screen 18 is fixedly connected to the outside of the left connecting rod 4. It is used to display the patient's weight data detected by the pressure sensor 16, so that medical staff can intuitively obtain the patient's weight information without complicated secondary reading operations. An auxiliary wheel 20 is rotatably connected to the rear bottom of the mobile base 1. It works in conjunction with other wheels on the mobile base 1 to assist the device in moving on the ground, improve the flexibility and convenience of the device's movement, and facilitate the accurate movement of the device to the patient's bedside.
[0021] Working principle: First, push the movable base frame 1 to the patient's bedside. Then, start the motor 14. Driven by the motor 14, the threaded rod 15 rotates. As the threaded rod 15 rotates, it drives the sliding frame 2 to slide inside the movable base frame 1. At this time, the fixed frame 3 will move upward with the sliding frame 2. Adjust the fixed frame 3 to the same height as the bed. Then, turn the patient to one side and push the movable base frame 1 inward to the bed so that the conveyor belt 6 is placed under the patient's body. Then, lay the patient flat so that the patient is in contact with the surface of the conveyor belt 6. Then, start the conveyor belt 6 through the controller 17. At this time, the conveyor belt 6 rotates backward, which will move the patient. When the patient moves to the center, the pressure sensor 16 monitors the patient's weight, and the data can be displayed on the display screen 18.
[0022] After the test is completed, the conveyor belt 6 is started again by the controller 17. At this time, the conveyor belt 6 rotates forward. When the patient moves above the bed, the motor 9 is started. Under the drive of the motor 9, the connecting frame 5 rotates to one side of the bed. When the conveyor belt 6 contacts the bed, the gear 7 will mesh with the teeth on the outside of the rack plate 10. At this time, the gear 7 will rotate counterclockwise with the rotation of the conveyor belt 6. When it meshes with the teeth on the outside of the rack plate 10, it will generate a pushing force on the rack plate 10, causing the moving base frame 1 to move to the right. At this time, the connecting rod 4 will slide to the left, driving the limiting plate 13 to move. The limiting plate 13 slides against the inner wall of the sliding groove 11, causing the spring 12 to be stretched. During the stretching process, the spring 12 will generate a reaction force on the limiting plate 13. When the patient is placed back on the bed, the protective shell 8 is started to rotate the conveyor belt 6 to be flush with the fixed frame 3. The reaction force of the spring 12 will assist the connecting rod 4 to reset.
[0023] 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.
[0024] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bedridden patient weighing aid capable of wirelessly transmitting data, comprising a movable base (1), characterized in that: The movable base (1) is internally connected to a sliding frame (2). The front left and right sides of the sliding frame (2) are fixedly connected to fixed frames (3). The fixed frames (3) are internally connected to a connecting rod (4). The fixed frames (3) are internally provided with a reset component. The two connecting rods (4) are rotatably connected to a connecting frame (5). The two ends of the connecting frame (5) are respectively rotatably connected to an active roller and a driven roller. A drive motor is fixed on the connecting frame (5). The output shaft of the drive motor is fixedly connected to one end of the active roller. The active roller and the driven roller are connected by a conveyor belt (6). The other end of the active roller is fixedly connected to a gear (7). The sliding frame (2) is externally fixedly connected to a rack plate (10) for cooperating with the gear. The rear side of the movable base (1) is provided with an adjustment component. The right side of the connecting rod (4) is externally fixedly connected to a protective shell (8). The protective shell (8) is internally fixedly connected to a motor (9). The drive end of the motor (9) is fixedly connected to the outside of the connecting frame (5).
2. The bedridden patient weighing aid device capable of wireless data transmission according to claim 1, characterized in that: The reset assembly includes a limiting plate (13), one side of which is fixedly connected to the outside of one end of the connecting rod (4). The inside of the fixing frame (3) is provided with a sliding groove (11), and two springs (12) are fixedly connected to one side of the inner wall of the sliding groove (11). The rear end of the sliding frame (2) is internally threaded to the outside of the threaded rod (15).
3. The bedridden patient weighing aid device capable of wireless data transmission according to claim 1, characterized in that: The adjustment assembly includes a second motor (14), the bottom of which is fixedly connected to the outside of the movable base (1), and a threaded rod (15) is fixedly connected to the drive end of the second motor (14). A limit collar (19) is fixedly connected to the rear side of the movable base (1).
4. The bedridden patient weighing aid device capable of wireless data transmission according to claim 2, characterized in that: The end of the spring (12) away from the sliding groove (11) is fixedly connected to the outside of the limiting plate (13), and the outside of the limiting plate (13) is slidably connected to the inner wall of the sliding groove (11).
5. A bedridden patient weighing aid capable of wireless data transmission according to claim 1, characterized in that: The connecting rod (4) is externally slidably connected to the front end through hole of the fixing frame (3), and the external teeth of the gear (7) are meshed with the external teeth of the rack plate (10).
6. A bedridden patient weighing aid capable of wireless data transmission according to claim 3, characterized in that: The inside of the limiting collar (19) is rotatably connected to the outside of the threaded rod (15) via a bearing, and the rear bottom of the movable base (1) is rotatably connected to an auxiliary wheel (20).
7. A bedridden patient weighing aid capable of wireless data transmission according to claim 3, characterized in that: A pressure sensor (16) is fixedly connected to the outside of the connecting rod (4), a controller (17) is fixedly connected to the outside of the left connecting rod (4), and a display screen (18) is fixedly connected to the outside of the left connecting rod (4).
8. A bedridden patient weighing aid capable of wireless data transmission according to claim 7, characterized in that: The controller (17) has a built-in wireless communication module, and the controller (17) is connected to the receiving terminal through the wireless communication module.
9. A bedridden patient weighing aid capable of wireless data transmission according to claim 1, characterized in that: The movable base (1) includes a base, a pressure sensor (16) fixed to one end of the top of the base, and a stand fixed to the input end of the pressure sensor (16), and the sliding frame (2) is slidably connected to the stand.