A transfer device and a transfer method for changing a bed of a bedridden patient

Abstract

The application provides a transfer device and a transfer method for changing the bed of a patient, which comprises a transfer belt, a frame, an angle control device, an angle recovery device and a power mechanism. The transfer belt is arranged outside the frame and comprises a plurality of treads. The end of each two adjacent treads is hingedly connected through a poking piece. The end of the poking piece away from the side of the tread is fixed with a poking rod. The power mechanism comprises a turnover device and a power device for driving the horizontal section of the transfer belt to move. The angle control device comprises a first swing gear for poking the poking piece. The angle recovery device comprises a second swing gear for poking the poking rod. The angle recovery device and the angle control device are respectively located at the two ends of the frame. The turnover device has at least two. The two turnover devices are respectively located at the two ends of the frame. The application can realize the transfer of a patient in bed, does not need to manually lift the patient, greatly improves the work efficiency of transferring the patient in bed, and can avoid the secondary injury caused by manual transfer.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a transport device and method for changing the bed position of bedridden patients. Background Technology

[0002] Currently, whether transferring a bedridden patient from their bed to the operating room or a patient awaiting emergency care to an ambulance, at least two people are needed to lift the patient onto a stretcher. This requires even more manpower for heavier patients. Furthermore, improper handling or unstable procedures by medical staff during the transfer can cause discomfort or even secondary injury to the patient. To facilitate the transfer of bedridden or emergency-received patients and reduce manual workload, it is necessary to design a transfer device and method for changing the bed position of bedridden patients. Summary of the Invention

[0003] To address the problems existing in the background art, the present invention proposes a transfer device for changing the bed position of bedridden patients, including a transfer belt, a frame, an angle control device, an angle recovery device, and a power mechanism. The transfer belt is rotatably disposed on the outside of the frame. The transfer belt includes multiple slips, and the ends of two adjacent slips are hinged by a lever. A lever is fixed on the side of the lever away from the slip. The power mechanism includes a tilting device and a power device for driving the horizontal section of the conveyor belt. The tilting device includes a fixed plate, a transmission arm, a turntable, and multiple levers. The number of transmission arms and levers is the same. The fixed plate is fixed on the frame and has a circular track. The turntable is rotatably mounted on the fixed plate. A slider is slidably arranged in the circular track. One end of the transmission arm is hinged to the slider, and the other end of the transmission arm is fixed to a rotating shaft. The rotating shaft passes through the turntable and is fixedly connected to the levers. The levers are in pairs, and the two levers in the same group are adjacent and hinged by a connecting rod. The angle control device includes a first swing gear for actuating the paddle, and the angle recovery device includes a second swing gear for actuating the lever. The angle recovery device and the angle control device are located at both ends of the frame, and there are at least two flipping devices, each located at one end of the frame. Both the first swing gear and the second swing gear are rotatably mounted on the frame, with the first swing gear located above the center of the fixed disk.

[0004] Preferably, the angle control device further includes a first control gear, which is coaxial with and fixedly connected to the turntable at its end, and the first control gear is connected to the first swing gear through a first transmission gear. The angle recovery device also includes a second control gear, which is coaxial with and fixedly connected to the turntable at its end. The second control gear is connected to the second swing gear via a second transmission gear.

[0005] Preferably, the inner side of the track is provided with a rack, and the outer side of the track is smooth. The power device includes multiple rows of upper gears and multiple rows of lower gears arranged along the transmission direction of the conveyor belt. The upper gears are rotatably installed in the upper position within the frame and mesh with the track rack located above. The lower gears are rotatably installed in the lower position within the frame and mesh with the track rack located below. Each row of upper gears and each row of lower gears are arranged along the length of the track.

[0006] Preferably, the upper gears are arranged in pairs, with the two upper gears in the same group being adjacent to each other, and an intermediate gear meshing with each of the two upper gears in the same group at the same time below, and each intermediate gear meshing with a lower gear.

[0007] Preferably, the upper gears located on both sides of the transfer belt extend out of the transfer belt, and the portion of the upper gears extending out of the transfer belt is used to push the paddle.

[0008] Preferably, a fixed shaft is fixed to one end of the paddle away from the track piece, the fixed shaft and the paddle are coaxial with the hinge point of a track piece, and the lever is fixed on the fixed shaft and arranged radially along the fixed shaft.

[0009] A method for transporting a transfer device for changing the bed position of a bedridden patient includes the following steps: The upper track of the transport device is tilted, and the lower track is horizontal. During transport, one end of the transport device is moved horizontally under the body of the bedridden patient, the transport device is started, and the drive equipment drives the upper gear, lower gear and turntable to rotate. The lower gear drives the track to move by meshing with the track rack. When the track moves to the bottom of the turntable, the lever lifts the track by the lever. As the turntable rotates, the lever transports the track supported by it upward. When the turntable and the lever transport the track to the first oscillating gear, the lever delivers the track to the teeth of the first oscillating gear. As the first oscillating gear continues to move, it drags the track upward while simultaneously oscillating the lever to tilt the track. The tilted track moves closer to the upper gear, which meshes with the track rack, propelling the track to move. When the track moves to the second oscillating gear, the second oscillating gear moves the lever to restore the track to a horizontal position. The lever block of the flipping device located at the second oscillating gear supports the track. As the turntable rotates, the lever block transports the track supported by it downwards. The track gradually returns to a horizontal position and continues to mesh with the lower gear. At this point, the conveyor belt completes one rotation cycle. As the transport belt rotates, the entire transport device moves to the other side of the patient's body until the patient is completely on the transport device. The transport device lifts the patient and continues to move to the other side of the patient's body. As the transport device moves, it gradually moves away from the patient, moving the stretcher to the position where the transport device left off. As the transport device moves, the stretcher moves under the patient's body until the stretcher lifts the patient, completing the transport.

[0010] The present invention has the following beneficial effects: This invention enables the transfer of bedridden patients. In use, one end of the transfer device is placed under the patient's body, and the patient's body is lifted from the bed or ground using the transfer device. Then, the stretcher is placed under one side of the patient's body. The transfer device is then activated again, and the stretcher is moved to the other side of the patient's body until the transfer device is no longer under the patient's body and the patient is completely placed on the stretcher. There is no need for manual lifting of the patient, which greatly improves the efficiency of transferring bedridden patients and avoids the problem of secondary injury caused by manual transfer.

[0011] This invention is easy to use and operate, and can facilitate the transfer of bedridden patients in various work scenarios. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the outer and inner sides of the track plate of the present invention; Figure 3 This is a schematic diagram of the paddle structure of the present invention; Figure 4 This is a schematic diagram of the flipping device structure of the present invention; Figure 5 This is a schematic diagram of the angle restoration device of the present invention; Figure 6 This is a schematic diagram of the connection relationship between the upper gear and the upper track plate of the present invention; Figure 7 This is a schematic diagram showing the relationship between the toggle block and the track piece in the flipping device of the present invention; Figure 8 This is a schematic diagram showing the relationship between the first oscillating gear and the paddle of the present invention; Figure 9 This is a schematic diagram showing the relationship between the second oscillating gear and the paddle of the present invention; Figure 10 This is a schematic diagram of the internal structure of the present invention; Figure 11 This is a schematic diagram of the track frame structure of the present invention; Figure 12 This is a schematic diagram of the upper and lower gear structures of the present invention; Figure 13 This is a schematic diagram of the transfer process of the present invention.

[0013] The diagram is labeled as follows: 1. Transfer belt; 11. Track piece; 2. Paddle; 21. Fixed shaft; 22. Paddle lever; 3. Angle control device; 31. First swing gear; 32. First transmission gear; 33. First control gear; 4. Angle recovery device; 41. Second swing gear; 5. Tilting device; 51. Fixed plate; 52. Circular track; 53. Transmission arm; 54. Slider; 55. Paddle block; 56. Connecting rod; 57. Turntable; 6. Upper gear; 7. Lower gear; 8. Intermediate gear; 9. Frame; 10. Track frame; 101. Outer plate; 102. Side plate; 103. Horizontal plate; 104. Arc plate; 105. Running track groove; 106. Opening. Detailed Implementation

[0014] To make the present invention clearer and more understandable, the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0015] In this article, terms such as "upper," "lower," "inner," and "outer" are established based on the positional relationships shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0016] Combined with appendix Figure 1 - Appendix Figure 13 A transfer device for changing the bed position of a bedridden patient includes a transfer belt 1, a frame 9, an angle control device 3, an angle recovery device 4, and a power mechanism. The transfer belt 1 is rotatably disposed outside the frame 9. The transfer belt 1 includes multiple slips 11. The ends of two adjacent slips 11 are hinged by a lever 2. A lever 22 is fixed to one end of the lever 2 away from the slip 11. Specifically, one end of the lever 2 is hinged to the end of one slip 11, and the other end of the lever 2 is hinged to the end of another slip 11. A fixed shaft 21 is fixed to one end of the lever 2 away from the slip 11. The fixed shaft 21 and the lever 2 are coaxial with the hinge point of one slip 11. The lever 22 is fixed on the fixed shaft 21 and is arranged radially along the fixed shaft 21.

[0017] The power mechanism includes a tilting device 5 and a power unit for driving the horizontal section of the transfer belt 1. The tilting device 5 includes a fixed plate 51, a transmission arm 53, a turntable 57, and multiple levers 55. The number of transmission arms 53 and levers 55 is the same. The fixed plate 51 is fixed to the frame 9 and has a circular track 52. The turntable 57 is rotatably mounted on the fixed plate 51. A slider 54 is slidably arranged inside the circular track 52. One end of the transmission arm 53 is hinged to the slider 54, and the other end of the transmission arm 53 is fixed with a rotating shaft. The rotating shaft passes through the turntable 57 and... The lever blocks 55 are fixedly connected, and the lever blocks 55 are in pairs. The two lever blocks 55 in the same group are adjacent and hinged by the connecting rod 56. Specifically, one end of the connecting rod 56 is connected to one lever block 55, and the other end of the connecting rod 56 is hinged to another lever block 55. The hinge point between the connecting rod 56 and the lever block 55 corresponds to the position of the rotating shaft. The turntable 57 is driven to rotate by the motor. When the turntable 57 rotates, it drives the slider 54 to rotate through the transmission arm 53. Under the cooperation of the slider 54, the transmission arm 53 and the connecting rod 56, the stop block always remains in a horizontal state when rotating with the turntable 57, so as to be able to carry the track piece 11.

[0018] The angle control device 3 includes a first swing gear 31 for actuating the lever 2, and the angle recovery device 4 includes a second swing gear 41 for actuating the lever 22. Specifically, the angle control device 3 also includes a first control gear 33, which is coaxial with and fixedly connected to the turntable 57 at its end. The first control gear 33 is connected to the first swing gear 31 via a first transmission gear 32. When the turntable 57 rotates, it drives the first control gear 33, which is coaxially connected to it, to rotate. The first control gear 33 drives the first swing gear 31 to rotate via the first transmission gear 32. The angle recovery device 4 also includes a second control gear, which is coaxial with and fixedly connected to the turntable 57 at its end. The second control gear is connected to the second swing gear 41 via a second transmission gear. When the turntable 57 rotates, it drives the second control gear, which is coaxial with it, to rotate. The second control gear drives the second swing gear 41 to rotate via the second transmission gear. The angle control device 3 and the angle recovery device 4 have the same structure.

[0019] The angle recovery device 4 and the angle control device 3 are located at both ends of the frame 9, and there are at least two flipping devices 5, with the two flipping devices 5 located at both ends of the frame 9. Specifically, there are two angle recovery devices 4, which are located on both sides of one end of the frame 9. There are two angle control devices 3, which are located on both sides of the other end of the frame 9. There are four flipping devices 5, with two flipping devices located on both sides of one end of the frame 9 and the other two flipping devices located on both sides of the other end of the frame 9. That is, the four flipping devices 5 are located at the four corners of the transfer belt 1.

[0020] The first swing gear 31 and the second swing gear 41 are both rotatably mounted on the frame 9, with the first swing gear 31 located above the center of the fixed disk 51.

[0021] Specifically, the inner side of the track 11 is provided with a rack, the outer side of the track 11 is smooth, and multiple track 11s are connected to form a conveyor belt 1 with a smooth bottom outer side. The power device includes multiple rows of upper gears 6 and multiple rows of lower gears 7 arranged along the transmission direction of the conveyor belt 1. The upper gears 6 are rotatably installed in the upper position inside the frame 9 and mesh with the rack of the track 11 located above. The lower gears 7 are rotatably installed in the lower position inside the frame 9 and mesh with the rack of the track 11 located below. Each row of upper gears 6 and each row of lower gears 7 are arranged along the length of the track 11 to ensure the smooth transport of the track 11.

[0022] Specifically, the upper gears 6 are arranged in pairs, with the two upper gears 6 in the same group being adjacent to each other, and an intermediate gear 8 meshing with each of the two upper gears 6 in the same group. Each intermediate gear 8 meshes with a lower gear 7, and when the lower gear 7 rotates, it can drive the upper gear 6 to rotate through the intermediate gear 8.

[0023] Specifically, the upper gears 6 located on both sides of the transfer belt 1 extend out of the transfer belt 1. The portion of the upper gears 6 extending out of the transfer belt 1 is used to push the paddle 2. The bottom end of the inclined paddle 2 is located between the teeth of the upper gears 6, so that the upper gears 6 can push the paddle 2, thereby pushing the track 11 to move.

[0024] Specifically, a fixed shaft 21 is fixed to one end of the paddle 2 away from the track piece 11. The fixed shaft 21 and the paddle 2 are coaxial with the hinge point of one track piece 11. The lever 22 is fixed on the fixed shaft 21 and is arranged radially along the fixed shaft 21. By moving the lever 22, the paddle 2 can rotate around the fixed shaft 21 at a position of 0-45°.

[0025] More specifically, both sides of the frame 9 are provided with track frames 10. The track frame 10 includes an outer plate 101, a side plate 102, a horizontal plate 103, and an arc plate 104. The outer plate 101 and the side plate 102 are shaped to match the running trajectory of the track piece 11. The side plate 102 is fixed to the side of the outer plate 101 away from the track piece 11. One side of the horizontal plate 103 is fixedly connected to the bottom end of the straight section of the side plate 102. There are two horizontal plates 103, which are fixed to the two straight sections of the side plate 102 respectively. The other side of the horizontal plate 103 extends towards the track piece 11. The arc plate 104 is shaped to match the arc section of the running trajectory of the track piece 11. One end of the arc plate 104 is connected to one end of a horizontal plate 103, and the other end of the arc plate 104 is connected to one end of another horizontal plate 103. There are two arc plates 104, which are fixed to the two ends of the horizontal plate 103 respectively. The interval between the arc plate 104 and the outer plate 101 forms a running track groove 105. The end of the fixed shaft 21 away from the paddle 2 extends into the running track groove 105, allowing the paddle 2 to move along the running track groove 105. An opening 106 is left between the arc plate 104 and the side plate 102. When the paddle 2 moves to the arc plate 104, the lever 22 and the fixed shaft 21 will be exposed at the opening 106, so that the first swing gear 31 and the second swing gear 41 can respectively move the fixed shaft 21 and the lever 22.

[0026] A method for transporting a transfer device for changing the bed position of a bedridden patient includes the following steps: The upper track 11 of the transport device is tilted, and the lower track 11 of the transport device is horizontal. During transport, one end of the transport device is moved horizontally under the body of the bedridden patient, the transport device is started, and the drive equipment drives the upper gear 6, the lower gear 7 and the turntable 57 to rotate. The lower gear 7 drives the track 11 to move by meshing with the rack of the track 11. When the track 11 moves to the bottom of the turntable 57, the paddle block 55 lifts the track 11 through the paddle 2. As the turntable 57 rotates, the paddle block 55 transports the track 11 it supports upward. When the turntable 57 and the lever 55 transport the track 11 to the first swing gear 31, the lever 55 sends the track 11 to the teeth of the first swing gear 31. As the first swing gear 31 continues to drag the track 11 upward, the lever 2 swings to tilt the track 11. Specifically, the tilt angle of the track 11 is 45°. The inclined track 11 approaches the upper gear 6, and the upper gear 6 meshes with the rack of the track 11, pushing the track 11 to move; When the track 11 moves to the second swing gear 41, the second swing gear 41 moves the lever 22 to restore the track 2 to a horizontal position. The lever 55 of the flipping device 5 located at the second swing gear 41 supports the track 2. As the turntable 57 rotates, the lever 55 moves the track 11 supported by it downwards. The track 11 gradually returns to a horizontal position and continues to mesh with the lower gear 7. At this point, the conveyor belt 1 completes one rotation cycle. The upper part of the transport belt 1 is inclined, so the top of the transport belt 1 is toothed. The inclined piece 11 has great friction with the patient's body. The bottom of the transport belt 1 is smooth, and the bottom of the transport belt 1 has little friction with the ground or bed. Therefore, as the transport belt 1 rotates, the entire transport device will move to the other side of the patient's body. The transport belt 1 rotates until the patient is completely on the transport device. The transport device lifts the patient and continues to move to the other side of the patient's body. As the transport device moves, it gradually moves away from the patient. The stretcher is moved to the position where the transport device has moved away. As the transport device moves, the stretcher is moved under the patient's body until the stretcher lifts the patient, completing the transport.

[0027] Although embodiments of the invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations 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 transfer device for changing the bed position of bedridden patients, characterized in that: It includes a transfer belt (1), a frame (9), an angle control device (3), an angle recovery device (4), and a power mechanism. The transfer belt (1) is rotatably arranged on the outside of the frame (9). The transfer belt (1) includes multiple tracks (11). The ends of two adjacent tracks (11) are hinged by a lever (2). A lever (22) is fixed on one side of the lever (2) away from the track (11). The power mechanism includes a flipping device (5) and a power device for driving the horizontal section of the transfer belt (1). The flipping device (5) includes a fixed plate (51), a transmission arm (53), a turntable (57) and multiple levers (55). The number of transmission arms (53) and levers (55) is the same. The fixed plate (51) is fixed on the frame (9). A circular track (52) is provided on the fixed plate (51). The turntable (57) is rotatably mounted on the fixed plate (51). A slider (54) is slidably arranged in the circular track (52). One end of the transmission arm (53) is hinged to the slider (54). The other end of the transmission arm (53) is fixed with a rotating shaft. The rotating shaft passes through the turntable (57) and is fixedly connected to the levers (55). The levers (55) are in pairs. The two levers (55) in the same group are adjacent and hinged by a connecting rod (56). The angle control device (3) includes a first swing gear (31) for moving the lever (2) to tilt the track (11) above the transfer device. The angle restoration device (4) includes a second swing gear (41) for moving the lever (22) to make the track (11) below the transfer device horizontal. There are two angle restoration devices (4), which are located on both sides of one end of the frame (9). There are two angle control devices (3), which are located on both sides of the other end of the frame (9). There are four flipping devices (5), with two flipping devices located on both sides of one end of the frame (9) and the other two flipping devices located on both sides of the other end of the frame (9). That is, the four flipping devices (5) are located at the four corners of the transfer belt (1). The first swing gear (31) and the second swing gear (41) are both rotatably mounted on the frame (9), with the first swing gear (31) located above the center of the fixed disk (51); The angle control device (3) further includes a first control gear (33), which is coaxial with and fixedly connected to the turntable (57) at its end. The first control gear (33) is connected to the first swing gear (31) through the first transmission gear (32). The angle recovery device (4) also includes a second control gear, which is coaxial with and fixedly connected to the turntable (57) at its end. The second control gear is connected to the second swing gear (41) through a second transmission gear. The inner side of the track (11) is provided with a rack, and the outer side of the track (11) is smooth. The power device includes multiple rows of upper gears (6) and multiple rows of lower gears (7) arranged along the transmission direction of the conveyor belt (1). The upper gears (6) are rotatably installed in the upper position inside the frame (9) and mesh with the rack of the track (11) located above. The lower gears (7) are rotatably installed in the lower position inside the frame (9) and mesh with the rack of the track (11) located below. Each row of upper gears (6) and each row of lower gears (7) are arranged along the length of the track (11); The upper gears (6) located on both sides of the transfer belt (1) extend out of the transfer belt (1), and the portion of the upper gears (6) extending out of the transfer belt (1) is used to push the paddle (2).

2. The transfer device for changing the bed position of a bedridden patient according to claim 1, characterized in that: The upper gears (6) are in pairs, with the two upper gears (6) in the same group being adjacent to each other, and an intermediate gear (8) meshing with each of the two upper gears (6) in the same group at the same time. Each intermediate gear (8) meshes with a lower gear (7).

3. The transfer device for changing the bed position of a bedridden patient according to claim 1, characterized in that: The paddle (2) has a fixed shaft (21) fixed on one side away from the track piece (11). The fixed shaft (21) and the paddle (2) are coaxial with the hinge point of a track piece (11). The lever (22) is fixed on the fixed shaft (21) and is arranged radially along the fixed shaft (21).

4. A method for transporting a transfer device for changing the bed position of a bedridden patient, implemented based on the transfer device for changing the bed position of a bedridden patient as described in any one of claims 1-3, characterized in that, Includes the following steps: The upper track (11) of the transport device is tilted, and the lower track (11) of the transport device is horizontal. During transport, one end of the transport device is moved horizontally to the side of the bedridden patient's body and the transport device is started. The drive device drives the upper gear (6), lower gear (7) and turntable (57) to rotate. The lower gear (7) drives the track (11) to move by meshing with the rack of the track (11). When the track (11) moves to the bottom of the turntable (57), the paddle block (55) lifts the track (11) through the paddle (2). As the turntable (57) rotates, the paddle block (55) transports the track (11) it supports upward. When the turntable (57) and the paddle (55) transport the track (11) to the first swing gear (31), the paddle (55) sends the track (11) to the teeth of the first swing gear (31). As the first swing gear (31) continues to move, it drags the track (11) upward and swings the paddle (2) to tilt the track (11). The inclined track (11) approaches the upper gear (6), and the upper gear (6) meshes with the rack of the track (11), pushing the track (11) to move; When the track piece (11) moves to the second swing gear (41), the second swing gear (41) moves the lever (22) to restore the track piece (2) to the horizontal. The lever (55) of the flipping device (5) located at the second swing gear (41) supports the track piece (2). As the turntable (57) rotates, the lever (55) moves the track piece (11) it supports downward. The track piece (11) gradually returns to the horizontal and continues to mesh with the lower gear (7). At this point, the conveyor belt (1) completes one rotation cycle. As the transport belt (1) rotates, the entire transport device moves to the other side of the patient's body until the patient is completely on the transport device. The transport device lifts the patient and continues to move to the other side of the patient's body. As the transport device moves, it gradually moves away from the patient and moves the stretcher to the position where the transport device has left. As the transport device moves, the stretcher moves under the patient's body until the stretcher lifts the patient, completing the transport.

Images