A multi-layered guideway integrated rigid chain and flexible transfer patient moving system and method
By integrating a rigid chain with a flexible conveyor through a multi-layered guide rail system, and combining roller chains and synchronous belt assemblies, the patient transfer system solves the problems of limited movement range, synchronous belt slippage, and low efficiency in existing patient transfer devices, thus achieving efficient and precise patient transfer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHUNENG TECHNOLOGY (JIAXING) CO LTD
- Filing Date
- 2026-04-29
- Publication Date
- 2026-06-26
AI Technical Summary
Existing patient transfer devices suffer from problems such as limited range of movement, slippage of the timing belt, insufficient movement accuracy, and low efficiency during the transfer process.
The patient transfer system, which integrates a multi-layered guide rail system with a rigid chain and a flexible conveyor, includes a flexible conveyor belt mechanism, a rigid chain mechanism, and a toothed plate moving mechanism. Through the combined use of roller chains and synchronous belt assemblies, it enables precise movement and large-scale transfer of patients between the bed and the stretcher.
It enables efficient, precise, and widespread patient transfer, improves transfer efficiency, reduces sliding friction of the synchronous belt, and enhances the stability and safety of the transfer.
Smart Images
Figure CN122272307A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of patient transfer devices, and in particular to a patient transfer system and method that integrates a multi-layer guide rail with a rigid chain and flexible conveyor. Background Technology
[0002] In the medical field, the problem of moving bedridden patients is frequently encountered, such as transferring bedridden patients from wards to operating rooms or vice versa. This problem is particularly prominent for moving comatose, severely injured, and paralyzed patients.
[0003] In the prior art, the medical devices employ synchronous belt assemblies or sprocket assemblies. For example, a general medical and nursing transport platform disclosed in utility patent CN207654359U uses a synchronous belt to move a moving plate, but patients can only be moved in and out from one side of the moving plate, and manual operation is required. Another example is a medical transfer bed disclosed in utility patent CN210582863U, which uses a double-layer flexible fabric and a double-layer moving plate structure, and is displaced by a conveyor belt. However, due to the double-layer structure, its moving plate can only move in one direction, limiting the range of motion.
[0004] However, the above-mentioned mobile device has the following problems in actual use: 1. It only moves back and forth on one side of the moving plate, limiting the range of motion. 2. Due to the weight of the human body, the synchronous belt is prone to slipping during movement, resulting in insufficient accuracy. 3. The limited range of motion makes it inefficient for moving patients. Summary of the Invention
[0005] In view of this, the present invention provides a patient transfer system and method that integrates a multi-layer guide rail with a rigid chain and flexible conveying to meet the above requirements.
[0006] A multi-layered guide rail integrated rigid chain and flexible conveyor patient transfer system includes a flexible conveyor belt mechanism, a rigid chain mechanism floatingly connected to the flexible conveyor belt mechanism, and a toothed plate moving mechanism fixedly disposed with the rigid chain mechanism. The flexible conveyor belt mechanism includes multiple support plates. The rigid chain mechanism includes a support base and a roller chain movably disposed within the support base. The support base includes a first guide rail and a sliding plate disposed below the first guide rail. The first guide rail has a blocking arm. The sliding plate extends towards the support plates. The support plates are hollow, with both ends engaging with rolling components. The roller chain slides within the first guide rail, causing the support plates to roll on the sliding plate. The toothed plate moving mechanism includes two second reduction motors, two second transmission gears fixedly disposed at the output ends of the second reduction motors, two second guide rails disposed above the second transmission gears, and two toothed plate assemblies disposed within the second guide rails. The distance between the second reduction motors and the second guide rails is fixed. The first and second guide rails, the toothed plate assembly, and the rigid chain mechanism form a double guide rail mechanism. The second transmission gear passes through the second guide rail and meshes with the toothed plate assembly, driving it to move within the second guide rail. The second guide rail is provided with a second blocking arm. The toothed plate assembly includes a toothed plate, a plurality of fixing blocks disposed on the toothed plate through mounting slots, and a plurality of rollers disposed on both sides of the toothed plate. The side of the toothed plate away from the second transmission gear is fixedly connected to the slide plate. The fixing blocks are disposed at the intervals of the rollers and abut against the second blocking arm when the toothed plate moves. The rollers abut against the second blocking arm when the toothed plate tilts.
[0007] Furthermore, the flexible conveyor belt mechanism includes two first geared motors, two synchronous belt assemblies driven by the first geared motors, and a flexible conveyor belt sleeved on the outer periphery of the support plate. The first geared motor includes a first motor and a first reducer driven by the first motor. The support plate supports the flexible conveyor belt.
[0008] Furthermore, two synchronous belt assemblies are disposed on both sides of the support plate. Each synchronous belt assembly has a drive pulley disposed at the output end of the first geared motor. The drive pulley drives the driven pulley to rotate in the vertical direction via the synchronous belt. A second drive pulley is fixedly disposed on one side of the driven pulley. When the driven pulley rotates, the second drive pulley drives the second driven pulley to rotate via the synchronous belt. A transmission gear is fixedly disposed on the other side of the driven pulley. The second driven pulley moves synchronously with the other transmission gear via the transmission gear. The two transmission gears rotate synchronously. The flexible conveyor belt is connected end to end, and synchronous toothed belts are disposed on both sides near the synchronous belt assembly. The synchronous toothed belts mesh with the transmission gears.
[0009] Furthermore, the bottom of the first guide rail is provided with two guide grooves to guide the moving roller chain.
[0010] Furthermore, the rolling assembly includes a connector inserted into the support plate, and a plurality of rollers disposed on the connector via connecting rods, wherein the support plate rolls on the slide plate.
[0011] Furthermore, the chain plates of the roller chain are bent outward and connected to the extension plates at both ends of the support plate via floating connectors.
[0012] Furthermore, the second geared motor includes a second motor and a second motor driven by the second motor.
[0013] A method of using a multi-layer guide rail integrated rigid chain and flexible conveyor patient transfer system, comprising the following steps: Step 1: The second geared motor drives the second transmission gear, which in turn drives the toothed plate assembly to move closer to the hospital bed. The rigid chain mechanism and the support plate move along with the toothed plate assembly, so that the support plate moves to the hospital bed. Step 2: The roller chain slides on the first guide rail, controlling the support plate to move precisely toward the patient; Step 3: When the support plate stops moving, the support plate is inserted under the patient. The transmission gear rotates clockwise or counterclockwise according to the positional relationship between the patient and the support plate, so that the patient is moved onto the support plate by the flexible conveyor belt. Step 4: Drive the toothed plate to move towards the stretcher again, drive the roller chain to move precisely, and the support plate stops moving at the fixed position on the stretcher. If the distance is short, the patient can be moved from the support plate to the stretcher by moving only the roller chain. Step 5: The synchronous belt assembly drives the flexible conveyor belt to rotate, moving the patient from the support plate to the stretcher; Step Six: The same applies to moving the patient from the stretcher to the bed; refer to Steps One through Five for details.
[0014] Compared with existing technologies, the present invention provides a patient transfer system and method integrating a multi-layer guide rail, a rigid chain, and flexible conveying. The toothed plate moving mechanism enables a wide range of movement of the rigid chain mechanism to increase the efficiency of patient transfer. The toothed plate moving mechanism moves the toothed plate on a second guide rail, controlling the movement of the support plate inside and outside the bed. The roller chain in the rigid chain mechanism drives the support plate to move on the bearing base. The movement of the roller chain precisely controls the movement of the support plate, further increasing its range of motion, and enabling rapid short-distance transport without the toothed plate moving mechanism. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a patient transfer system and method that integrates a multi-layer guide rail with a rigid chain and flexible conveying, as provided by the present invention.
[0016] Figure 2 for Figure 1 The schematic diagram of the synchronous belt assembly in the multi-layer guide rail integrated rigid chain and flexible transmission patient transfer system and method is shown.
[0017] Figure 3 for Figure 1 The schematic diagram of the support plate in the multi-layer guide rail integrated rigid chain and flexible conveying patient transfer system and method described above.
[0018] Figure 4 for Figure 1 The schematic diagram of the rigid chain mechanism in the multi-layer guide rail integrated rigid chain and flexible conveying patient transfer system and method is shown.
[0019] Figure 5 for Figure 1 The schematic diagram shows the structure of the rolling component in the multi-layer guide rail integrated rigid chain and flexible conveying patient transfer system and method.
[0020] Figure 6 for Figure 1 The schematic diagram shows the structure of the toothed plate moving mechanism in the multi-layer guide rail integrated rigid chain and flexible conveying patient transfer system and method.
[0021] Figure 7 for Figure 1 The exploded view of the toothed plate moving mechanism in the multi-layer guide rail integrated rigid chain and flexible conveying patient transfer system and method described above.
[0022] Figure 8 for Figure 1 The patient transfer system and method integrating multi-layer guide rails, rigid chains, and flexible conveying has a schematic diagram showing the movement of the toothed plate moving mechanism and the rigid chain mechanism to one end.
[0023] Figure 9 for Figure 1 The schematic diagram shows the structure of the multi-layer guide rail integrated rigid chain and flexible conveying patient transfer system and method, which includes a toothed plate moving mechanism and a rigid chain mechanism moving to the other end. Detailed Implementation
[0024] The following provides a more detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.
[0025] The terminology used herein is intended to explain the embodiments and is not intended to limit or restrict the invention. It should be understood that the terms "front," "rear," "left," "right," "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing the invention and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.
[0026] Please see Figures 1 to 9 This is a structural schematic diagram of a multi-layer guide rail integrated rigid chain and flexible conveyor patient transfer system and method provided by the present invention. The multi-layer guide rail integrated rigid chain and flexible conveyor patient transfer system includes a flexible conveyor belt mechanism 10, a rigid chain mechanism 20 floatingly connected to the flexible conveyor belt mechanism 10, and a toothed plate moving mechanism 30 fixedly disposed with the rigid chain mechanism 20. It is conceivable that the flexible conveyor belt conveyor device with synchronous belt drive structure also includes other functional modules, such as a rigid chain drive motor, a partition protecting the toothed rack, auxiliary moving devices, etc., which are technologies known to those skilled in the art and will not be described in detail here.
[0027] The flexible conveyor belt mechanism 10 includes two first reduction motors 11, two synchronous belt assemblies 12 driven by the first reduction motors 11, multiple support plates 13 disposed below the synchronous belt assemblies 12, and a flexible conveyor belt 14 sleeved on the outer periphery of the support plates 13. The flexible conveyor belt mechanism 10 is used to insert under the patient and move the patient to the center position of the flexible conveyor belt 14 by rotation.
[0028] The first geared motor 11 includes a first motor 111 and a first reducer 112 driven by the first motor 111. The output of the first reducer 112 drives the synchronous belt assembly 12. The first geared motor 11 is a common technology and will not be described in detail here.
[0029] Two synchronous belt assemblies 12 are disposed on both sides of the support plate 13. Each synchronous belt assembly 12 has a driving pulley 121 disposed at the output end of the first reduction motor 11. The driving pulley 121 drives the driven pulley 122 to rotate in the vertical direction via the synchronous belt. A second driving pulley 123 is fixedly disposed on one side of the driven pulley 122. When the driven pulley 122 rotates, the second driving pulley 123 drives the second driven pulley 124 to rotate via the synchronous belt. A transmission gear 125 is fixedly disposed on the other side of the driven pulley 122. The second driven pulley 124 moves synchronously with the other transmission gear 125 via the transmission gear, and the two transmission gears 125 rotate synchronously.
[0030] Multiple support plates 13 are spaced apart. The support plates 13 support the flexible conveyor belt 14. The structure of the support plates 13 is related to the rigid chain mechanism 20 described below, and will be specifically described in conjunction with the rigid chain mechanism 20.
[0031] The flexible conveyor belt 14 is connected end to end, and synchronous toothed belts 141 are provided on both sides near the synchronous belt assembly 12. The synchronous toothed belts 141 mesh with the transmission gear 125. When the transmission gear 125 rotates, the synchronous toothed belts 141 rotate synchronously with it, driving the flexible conveyor belt 14 to rotate.
[0032] The rigid chain mechanism 20 includes a support base 21 disposed below the transmission gear 125, and a roller chain 22 movably disposed in the support base 21. The rigid chain mechanism 20 is movably connected to and driven by the gear plate moving mechanism 30.
[0033] The support base 21 includes a first guide rail 211 and a sliding plate 212 disposed below the first guide rail 211. The first guide rail 211 has a blocking arm 2111 to block the roller chain 22, and two guide grooves 2112 at its bottom to guide the moving roller chain 22. The sliding plate 212 extends toward the support plate 13. The support plate 13 is hollow, and its two ends are engaged with the rolling assembly 131. The rolling assembly 131 includes a connector 1311 inserted into the support plate 13, and multiple rollers 1313 disposed on the connector 1311 via connecting rods 1312. The support plate 13 rolls and moves on the sliding plate 212. The support plate 13 rolls and slides on the sliding plate 212 through the rollers 1313, and the rolling friction reduces the sliding friction generated by the roller chain 22 dragging the support plate 13, so that the driving force required for the movement of the roller chain 22 is smaller and the movement is smoother.
[0034] The chain plates 221 of the roller chain 22 are bent outward and connected to the extension plates 132 at both ends of the support plate 13 via floating connectors. The roller chain 22 slides in the first guide rail 211, causing the support plate 13 to roll on the slide plate 212. The floating connectors reduce the vibration force transmitted between the support plate 13 and the roller chain 22 during movement.
[0035] The toothed plate moving mechanism 30 includes two second reduction motors 31, two second transmission gears 32 respectively fixedly mounted on the output ends of the second reduction motors 31, two second guide rails 33 mounted above the second transmission gears 32, and two toothed plate assemblies 34 mounted in the second guide rails 33. The distance between the second reduction motors 31 and the second guide rails 33 is fixed, and the second guide rails 33 are used to support the mass of the toothed plate assemblies 34 and the various devices on them. The second transmission gears 32 are used to drive the toothed plate assemblies 34 to move. The toothed plate assemblies 34 are fixedly connected to the rigid chain mechanism 20. The first and second guide rails 211 and 33, the toothed plate assemblies 34, and the rigid chain mechanism 20 form a double guide rail mechanism, increasing the movement range of the support plate 13.
[0036] The second geared motor 31 includes a second motor 311 and a second reducer 312 driven by the second motor 311. The second geared motor 31 is used to drive the second transmission gear 32 to rotate.
[0037] The second transmission gear 32 passes through the second guide rail 33 and engages with the toothed plate assembly 34, driving it to move within the second guide rail 33.
[0038] The second guide rail 33 extends in the same direction as the first guide rail 211. The second guide rail 33 supports the rigid chain mechanism 20 and the synchronous belt assembly 12, and provides a movement space for the toothed plate assembly 34, preventing the output end of the second reduction motor 31 and the second transmission gear 32 from breaking due to excessive pressure. The second guide rail 33 is provided with a second blocking arm 331 to prevent the toothed plate assembly 34 from leaving the second guide rail 33.
[0039] The toothed plate assembly 34 includes a toothed plate 341, a plurality of fixing blocks 342 disposed on the toothed plate 341 via mounting slots, and a plurality of rollers 343 disposed on both sides of the toothed plate 341. The toothed plate 341 is fixedly connected to the slide plate 212 on the side away from the second transmission gear 32. The second transmission gear 32 drives the toothed plate 341, causing the rigid chain mechanism 20 to move accordingly via the slide plate 212. The fixing blocks 342 are disposed at intervals of the rollers 343 and abut against the second blocking arm 331 when the toothed plate 341 moves to prevent the toothed plate 341 from tilting, thereby avoiding affecting the tilt degree of the support plate 13 and preventing the patient from slipping off the support plate 13. The rollers 343 abut against the second blocking arm 331 when the toothed plate 341 tilts, thereby preventing the toothed plate 341 from tilting during movement.
[0040] The steps for using the multi-layer guide rail integrated rigid chain and flexible conveying patient transfer system and method are as follows: Step 1: The second reduction motor 31 drives the second transmission gear 32, and the second transmission gear 32 drives the toothed plate assembly 34 to move closer to the hospital bed. The rigid chain mechanism 20 and the support plate 13 move with the toothed plate assembly 34, so that the support plate 13 moves to the hospital bed.
[0041] Step 2: The roller chain 22 slides on the first guide rail 211, controlling the support plate 13 to move precisely toward the patient.
[0042] Step 3: When the support plate 13 stops moving, it is inserted under the patient. The transmission gear 125 rotates clockwise or counterclockwise according to the positional relationship between the patient and the support plate 13, so that the patient is moved onto the support plate 13 by the flexible conveyor belt 14.
[0043] Step 4: Drive the toothed plate 341 to move towards the stretcher again, driving the roller chain 22 to move precisely. The support plate 13 stops moving at the fixed position on the stretcher. If the distance is short, the patient can be transferred from the support plate 13 to the stretcher simply by moving the roller chain 22.
[0044] Step 5: The synchronous belt assembly 12 drives the flexible conveyor belt 14 to rotate, moving the patient from the support plate 13 to the stretcher.
[0045] Step Six: The same applies to moving the patient from the stretcher to the bed; refer to Steps One through Five for details.
[0046] Compared with existing technologies, the present invention provides a patient transfer system and method integrating a multi-layer guide rail, a rigid chain, and flexible conveying. The toothed plate moving mechanism 30 is configured such that the rigid chain mechanism 20 allows for a wide range of movement, increasing the efficiency of patient transfer. The toothed plate moving mechanism 30 allows the toothed plate 341 to move on the second guide rail 33, controlling the movement of the support plate 13 inside and outside the bed. The roller chain 22 in the rigid chain mechanism 20 drives the support plate 13 to move on the bearing base 21. The movement of the support plate 13 is precisely controlled by the movement of the roller chain 22, further increasing the range of movement of the support plate 13, while also enabling rapid short-distance transport without the aid of the toothed plate moving mechanism 30.
[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions or improvements within the spirit of the present invention are covered within the scope of the claims of the present invention.
Claims
1. A patient transfer system integrating a multi-layer guide rail, a rigid chain, and a flexible conveyor, characterized in that: The multi-layered guide rail integrated rigid chain and flexible conveyor patient transfer system includes a flexible conveyor belt mechanism, a rigid chain mechanism floatingly connected to the flexible conveyor belt mechanism, and a toothed plate moving mechanism fixedly disposed with the rigid chain mechanism. The flexible conveyor belt mechanism includes multiple support plates. The rigid chain mechanism includes a support base and a roller chain movably disposed within the support base. The support base includes a first guide rail and a sliding plate disposed below the first guide rail. The first guide rail has a blocking arm. The sliding plate extends towards the support plates. The support plates are hollow, with both ends engaging with rolling components. The roller chain slides within the first guide rail, causing the support plates to roll on the sliding plate. The toothed plate moving mechanism includes two second reduction motors, two second transmission gears fixedly disposed at the output ends of the second reduction motors, two second guide rails disposed above the second transmission gears, and two toothed plate assemblies disposed within the second guide rails. The distance between the second reduction motors and the second guide rails is fixed. The first and second guide rails, the toothed plate assembly, and the rigid chain mechanism form a double guide rail mechanism. The second transmission gear passes through the second guide rail and meshes with the toothed plate assembly, driving it to move within the second guide rail. The second guide rail is provided with a second blocking arm. The toothed plate assembly includes a toothed plate, a plurality of fixing blocks disposed on the toothed plate through mounting slots, and a plurality of rollers disposed on both sides of the toothed plate. The side of the toothed plate away from the second transmission gear is fixedly connected to the slide plate. The fixing blocks are disposed at the intervals of the rollers and abut against the second blocking arm when the toothed plate moves. The rollers abut against the second blocking arm when the toothed plate tilts.
2. The patient transfer system integrating a multi-layer guide rail, rigid chain, and flexible conveyor as described in claim 1, characterized in that: The flexible conveyor belt mechanism includes two first geared motors, two synchronous belt assemblies driven by the first geared motors, and a flexible conveyor belt sleeved on the outer periphery of the support plate. The first geared motor includes a first motor and a first reducer driven by the first motor. The support plate supports the flexible conveyor belt.
3. The patient transfer system integrating a multi-layer guide rail, rigid chain, and flexible conveyor as described in claim 2, characterized in that: Two synchronous belt assemblies are disposed on both sides of the support plate. Each synchronous belt assembly has a drive pulley disposed at the output end of the first geared motor. The drive pulley drives the driven pulley to rotate in the vertical direction via the synchronous belt. A second drive pulley is fixedly disposed on one side of the driven pulley. The second drive pulley drives the second driven pulley to rotate via the synchronous belt when the driven pulley rotates. A transmission gear is fixedly disposed on the other side of the driven pulley. The second driven pulley moves synchronously with the other transmission gear via the transmission gear. The two transmission gears rotate synchronously. The flexible conveyor belt is connected end to end, and synchronous toothed belts are disposed on both sides near the synchronous belt assembly. The synchronous toothed belts mesh with the transmission gears.
4. The patient transfer system integrating a multi-layer guide rail, rigid chain, and flexible conveyor as described in claim 1, characterized in that: The bottom of the first guide rail is provided with two guide grooves to guide the moving roller chain.
5. The patient transfer system integrating a multi-layer guide rail, rigid chain, and flexible conveyor as described in claim 1, characterized in that: The rolling assembly includes a connector inserted into the support plate, and a plurality of rollers disposed on the connector via connecting rods, the support plate rolling on the slide plate.
6. The patient transfer system integrating a multi-layer guide rail, rigid chain, and flexible conveyor as described in claim 1, characterized in that: The chain plates of the roller chain are bent outward and connected to the extension plates at both ends of the support plate via floating connectors.
7. The patient transfer system integrating a multi-layer guide rail, rigid chain, and flexible conveyor as described in claim 1, characterized in that: The second geared motor includes a second motor and a second motor driven by the second motor.
8. The method of using the multi-layer guide rail integrated rigid chain and flexible conveying patient transfer system according to any one of claims 1 to 7, characterized in that: It includes the following steps: Step 1: The second geared motor drives the second transmission gear, which in turn drives the toothed plate assembly to move closer to the bed. The rigid chain mechanism and the support plate move along with the toothed plate assembly, causing the support plate to move onto the bed. Step 2: The roller chain slides on the first guide rail, controlling the precise movement of the support plate towards the patient. Step 3: When the support plate stops moving, it is inserted under the patient. The transmission gear rotates clockwise or counterclockwise according to the positional relationship between the patient and the support plate. The rotation of the flexible conveyor belt moves the patient onto the support plate. Step 4: The toothed plate is driven to move towards the stretcher again, and the roller chain is driven to move precisely. The support plate stops moving at a fixed position on the stretcher. If the distance is short, the patient can be moved from the support plate to the stretcher simply by moving the roller chain. Step 5: The synchronous belt assembly drives the flexible conveyor belt to rotate, moving the patient from the support plate to the stretcher. Step 6: The same procedure applies to moving the patient from the stretcher to the bed. Please refer to steps 1 to 5 for details.