A medical bed transfer system and method

Abstract

This invention discloses a medical bed transfer system and method, including a bed transfer board, a bed transfer device, and a driving device. The bed transfer board has an adaptable component that controls the downward concave area of ​​the board according to the patient's body volume. Protective devices are embedded on both sides of the bed transfer board. The bed transfer device includes a hollow push frame, inside which a bed frame is slidably mounted via a locking sliding component. A first lifting arm and a second lifting arm are rotatably mounted on the bed frame via a fixed shaft. The driving device is located inside the hollow push frame and controls the first and second lifting arms to retract inward to clamp the bed transfer board and push the bed frame out from inside the hollow push frame. This invention incorporates an adaptable component within the bed transfer board, allowing for surface fixation of patients of different sizes lying on the bed transfer board. A single driving source simultaneously achieves the upward movement of the bed transfer board and the bed transfer action, making it practical and convenient.

Description

Technical Field

[0001] This invention belongs to the field of medical auxiliary equipment technology, specifically relating to a medical bed transfer system and method. Background Technology

[0002] In medical institutions, numerous patients need to be transferred between beds, trolleys, operating tables, and examination and treatment tables for procedures such as bed changes, nursing care, examinations, and surgeries. Traditional methods involve multiple people lifting and moving the patient from different locations with varying degrees of force. This method is highly uncomfortable for patients, especially those with spinal cord injuries. Inappropriate handling can even lead to further spinal damage, potentially rupturing or crushing the spinal cord at the injury site, causing or worsening paraplegia. Therefore, moving patients with spinal cord injuries requires specially trained medical personnel who strictly adhere to prescribed procedures. For medical staff, manual transport is a highly skilled and physically demanding task.

[0003] For patients with spinal injuries, using a transfer bed can cause further injury during the process of being rolled to the side or pushed upwards and forwards. To address this issue, existing technologies disclose medical transfer devices, such as the medical transfer device disclosed in CN211187946U and the multifunctional medical transfer device disclosed in CN209808823U. These devices change the patient's position from supine to prone during the transfer, and when the patient lying flat on the first transfer board is rolled to an upright position, the lower legs are well fixed by the lower leg fixation seats and will not move or bend. However, the following technical problems may still exist in the use of the above-mentioned existing technologies:

[0004] (1) When using the device, the fixation seat cannot properly fix the body to the bed board for patients with partial body surface injuries or larger body size. During the bed transfer, the patient's comfort is compromised, and the patient may move on the bed board during the bed transfer, causing friction damage between the patient and the device.

[0005] (2) Existing medical bed transfer systems and methods basically use drive motors to move the bed transfer device. One drive motor can usually only complete one action, pushing the bed transfer device out or raising the bed transfer device. In the existing technology, using two drive motors to move the bed transfer device requires moving the bed transfer device at the same time, which is quite troublesome. Alternatively, the bed transfer board can be moved to another bed position by rotation. During the rotation, the patient's body also rotates at the same time, which can easily cause secondary injury to the patient. Summary of the Invention

[0006] Therefore, the present invention provides a medical bed transfer system and method, which effectively solves the problems in the prior art where the bed transfer board disrupts the patient's comfort, and may cause friction damage between the patient and the device due to movement on the bed transfer board during bed transfer, as well as the problems that the drive device is prone to causing during the drive process.

[0007] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: a medical bed transfer system, including a bed transfer board installed on a hospital bed, a bed transfer device for transferring the bed transfer board onto the bed, and a drive device for controlling the bed transfer device. The bed transfer board is provided with an adapter component that controls the downward concave area of ​​the bed transfer board according to the volume of the patient's body. A pair of base plates that provide basic support for the human body are slidably installed at the upper end of the bed transfer board. Protective devices that protect the edges of the human body are embedded on both sides of the bed transfer board.

[0008] The bed-transfer device includes a main support frame and a hollow push frame mounted on the main support frame. A bed-transfer frame is slidably mounted inside the hollow push frame via a locking sliding assembly. A first lifting arm and a second lifting arm are rotatably mounted on the bed-transfer frame via a fixed shaft. A driving device is located inside the hollow push frame. The driving device controls the first lifting arm and the second lifting arm to retract inward to clamp the bed-transfer plate and push the bed-transfer frame out from inside the hollow push frame.

[0009] The adapter component includes an adjustment plate located below the base plate to support the chest and below of the human body, and the sides of the adjustment plate are connected to side plates for supporting the arms and head via telescopic plates.

[0010] Furthermore, a fixing plate is connected below the adjusting plate by multiple spring cylinders. The fixing plate is fixedly installed on the inner side wall of the bed plate. A chain plate is provided between the side plate and the telescopic plate. The telescopic plate includes a first connecting plate rotatably connected to the chain plate and a second connecting plate rotatably connected to the adjusting plate. The first connecting plate is sleeved on the second connecting plate by multiple first springs.

[0011] Furthermore, an adjusting rod is provided below the chain plate and connected to the telescopic plate or the chain plate. The adjusting rod is disposed through the inner wall of the guide plate. A second spring is wound on the adjusting rod. One end of the second spring is connected to the adjusting rod, and the other end of the second spring is connected to the inner wall of the guide plate. A limit block is threadedly connected to the end of the adjusting rod away from the telescopic plate. A knob is provided outside the guide plate to control the rotation and movement of the limit block.

[0012] Furthermore, the protective device includes support rods connected to both sides of the adjusting plate, the adjusting plate is connected to a lifting plate through the support rods, and arc plates are provided on both sides of the lower end of the lifting plate. A fixed shaft is provided on the bed plate, the arc plates are slidably mounted on the fixed shaft, and a long strip perforation is provided on the side plate for the arc plates to pass through.

[0013] Furthermore, the base plate is provided with rollers at its bottom, and is rolled on the guide plate by the rollers. The guide plate is provided with limiting grooves on both sides for the rollers to be engaged and fixed.

[0014] Furthermore, the bed plate is provided with a bed hole for the base plate to slide through. The bed-transfer device passes through the bed hole and drives the bed plate to move. The bed-transfer device also includes a lifting plate disposed at the lower end of the first lifting arm and the second lifting arm and passing through the bed hole. Lifting holes are provided on the front and rear sides of the bed frame. The fixed shaft is disposed through the lifting hole and slides up and down in the lifting hole. Limit rings are provided at both ends of the fixed shaft.

[0015] Furthermore, the bottom end of the over-bed frame is provided with a buffer clamping hole for the first lifting arm and the second lifting arm to pass inward, and the bottom of the hollow push frame is provided with a through groove for the first lifting arm and the second lifting arm to pass through.

[0016] Furthermore, the locking sliding assembly includes a locking block that passes through the bottom of the bed frame and is located at the lower end of the fixed shaft. The locking block has a compensating inclined surface that is in compensating fit with the drive device on the side near the drive device. The bottom of the hollow push frame has a mounting groove for connecting the locking block. One end of the locking block is fixedly connected to the bottom of the mounting groove by multiple springs.

[0017] Furthermore, the driving device includes a bed frame adjusting push block slidably disposed inside the bed frame. The lower end of the bed frame adjusting push block near the fixed shaft has a sliding inclined surface that matches the compensating inclined surface, and the upper end of the bed frame adjusting push block near the fixed shaft has a pushing inclined surface. The end of the pushing inclined surface has an arc-shaped fixing groove that connects to the fixed shaft. A drive column is fixedly connected to the end of the bed frame adjusting push block away from the bed frame. The drive column is connected to a motor, and the motor controls the retraction movement of the drive column.

[0018] Multiple telescopic frames are sleeved on one end of the bed frame near the drive device, and the telescopic frames are fixedly installed on the hollow push frame at the end away from the bed frame.

[0019] In addition, the present invention also provides a medical bed transfer method, which specifically includes the following steps:

[0020] Step 1: Slowly slide the base plate to both sides of the bed board until it is completely above the bed board;

[0021] Step 2: Rotate the knob until the adjusting rod is fixed;

[0022] Step 3: Start the motor to drive the first lifting arm and the second lifting arm to raise the bed plate and push the bed frame to move the bed plate through the bed, and then lower the bed plate;

[0023] Step 4: Wait for the drive device to complete the transfer of the bed frame, turn off the motor, and manually push the bed frame back to the initial position.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] (1) The present invention provides an adapter component in the bed board. According to the different downward concave area of ​​patients of different body sizes lying on the bed board, the patient's chest and below lie in the concave area to fix the patient's body surface and prevent the patient's body from moving during the bed transfer. In addition, a protective device is provided on the bed board. When the patient lies down, the arc plate protrudes from the surface of the bed board to protect the patient.

[0026] (2) The present invention sets up a bed frame inside the hollow push frame, and the hollow push frame locks the bed frame through a locking sliding assembly. The drive device pushes the bed frame inside the bed frame, moves the fixed shaft upward and pushes the bed frame outward. The bed frame can be moved upward and the bed movement can be achieved simultaneously through a single drive source. It is practical and convenient. The bed movement is slow and smooth, avoiding secondary damage to the patient caused by rotating the bed. Attached Figure Description

[0027] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a medical bed transfer system and method provided in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the bed plate when it is not in operation in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the adjusting rod and chain plate in an embodiment of the present invention;

[0031] Figure 4 This is a cross-sectional schematic diagram of the hollow pusher and the bed frame in an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the driving device and the locking sliding assembly in an embodiment of the present invention.

[0033] The labels in the diagram represent the following:

[0034] 1-Transfer plate; 2-Transfer device; 3-Adaptor component; 4-Base plate; 5-Protective device; 6-Transfer hole; 7-Drive device; 8-Limit slot seat;

[0035] 21-Main support frame; 22-Hollow push frame; 23-Locking sliding assembly; 24-Transition frame; 25-Fixed shaft; 26-First lifting arm; 27-Second lifting arm; 28-Lifting plate; 29-Lifting hole; 210-Limit ring; 211-Buffer clamping hole; 212-Through slot; 213-Telescopic frame;

[0036] 31-Adjusting plate; 32-Telescopic plate; 33-Side plate; 34-Spring cylinder; 35-Fixing plate; 36-Chain plate; 37-Adjusting rod; 38-Second spring; 39-Limit block; 310-Knob;

[0037] 51-Support rod; 52-Lifting plate; 53-Arc plate; 54-Fixed shaft; 55-Through hole;

[0038] 71-Over-bed frame adjusting push block; 72-Sliding inclined plane; 73-Pushing inclined plane; 74-Arc-shaped fixed groove; 75-Drive column;

[0039] 231-Locking block; 232-Compensating slope; 233-Mounting groove;

[0040] 321 - First connecting plate; 322 - Second connecting plate. Detailed Implementation

[0041] 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.

[0042] like Figure 1 and Figure 2As shown, the present invention provides a medical bed transfer system, including a bed transfer board 1 installed on a hospital bed, a bed transfer device 2 for transferring the bed transfer board 1 onto the bed, and a drive device 7 for controlling the bed transfer device 2. The bed transfer board 1 is provided with an adapter component 3 that controls the downward concave area of ​​the bed transfer board according to the volume of the patient's body. A pair of base plates 4 are slidably installed at the upper end of the bed transfer board 1 to provide basic support for the human body. Protective devices 5 for protecting the edges of the human body are embedded on both sides of the bed transfer board 1. The bed transfer device 2 includes a main support frame 21 and a hollow push frame 22 installed on the main support frame 21. A bed transfer frame 24 is slidably installed inside the hollow push frame 22 through a locking sliding component 23. A first lifting arm 26 and a second lifting arm 27 are rotatably installed on the bed transfer frame 24 through a fixed shaft 25. The drive device 7 is installed inside the hollow push frame 22. The drive device 7 controls the first lifting arm 26 and the second lifting arm 27 to retract inward to clamp the bed transfer board 1 and push the bed transfer frame 24 out from inside the hollow push frame 22. The adapter component 3 includes an adjustment plate 31 located below the base plate 4 to support the chest and below of the human body. The sides of the adjustment plate 31 are connected to side plates 33 for supporting the arms and head via telescopic plates 32.

[0043] The innovation of this invention lies in the adapter component 3. In existing technologies, patients with surface injuries or who are obese often find that the fixing seat cannot properly secure their bodies to the transfer board during the transfer process, compromising patient comfort and potentially causing friction injury due to movement on the transfer board. To address these issues, the existing technology has designed the adapter component 3. The area of ​​the downward concave portion of the transfer board 1 varies depending on the patient's size, preventing the concave portion of the body from shifting during the transfer and avoiding injury caused by movement. Furthermore, existing transfer machines use two drive power supplies or a rotating transfer board for the transfer process. Using two drive power supplies is cumbersome, and rotating the transfer board may also cause injury to the patient. In this invention, the drive device 7 and the transfer device 2 are improved, with a single drive power supply simultaneously achieving the raising and lowering of the transfer board 1 and the transfer, saving operational steps and making the process more convenient and faster.

[0044] A fixing plate 35 is connected to the lower part of the adjusting plate 31 by multiple spring cylinders 34. The fixing plate 35 is fixedly installed on the inner side wall of the bed plate 1. A chain plate 36 is provided between the side plate 33 and the telescopic plate 32. The telescopic plate 32 includes a first connecting plate 321 rotatably connected to the chain plate 36 and a second connecting plate 322 rotatably connected to the adjusting plate 31. The first connecting plate 321 is sleeved on the second connecting plate 322 by multiple first springs.

[0045] The fixed plate 35 is fixedly installed inside the bed plate 1. The spring cylinder 34 provides elastic force to the adjusting plate 31. When no pressure is applied to the adjusting plate 31, the adjusting plate 31 is on the same horizontal plane as the side plate 33 under the action of the spring cylinder 34. When a force is applied to the adjusting plate 31, the adjusting plate 31 moves downward and the telescopic plate 32 extends downward.

[0046] Since the telescopic plate 32 has a limited telescopic length and can only change its longitudinal height, a chain plate 36 is provided between the telescopic plate 32 and the side plate 33. In this invention, as shown... Figure 3 As shown, an adjusting rod 37 is provided below the chain plate 36 and is connected to the telescopic plate 32 or the chain plate 36. The adjusting rod 37 is installed through the inner wall of the bed plate 1. A second spring 38 is wound on the adjusting rod 37. One end of the second spring 38 is connected to the adjusting rod 37, and the other end of the second spring 38 is connected to the inner wall of the bed plate 1. A limit block 39 is threadedly connected to the end of the adjusting rod 37 away from the telescopic plate 32. A knob 310 is provided outside the bed plate 1 to control the rotation and movement of the limit block 39.

[0047] When the knob 310 is turned, the limiting block 39 rotates accordingly until it fits against the inner wall of the bed board 1, fixing the adjusting rod 37 and controlling the concave area to prevent the concave area from increasing due to the patient's movement.

[0048] In this invention, the protective device 5 is used to further protect the patient. The protective device 5 includes support rods 51 connected to both sides of the adjustment plate 31. The adjustment plate 31 is connected to the lifting plate 52 through the support rods 51. Arc plates 53 are provided on both sides of the lower end of the lifting plate 52. A fixed shaft 54 ​​is provided on the bed board 1. The arc plates 53 are slidably mounted on the fixed shaft 54. The side plate 33 is provided with long strip through holes 55 for the arc plates 53 to pass through.

[0049] The adjusting plate 31 is pressed down, causing the lifting plate 52 to move downward as well, which in turn causes the arc plate 53 to slide upward. The arc plate 53 protrudes through the perforation onto the upper surface of the bed board 1, providing protection for both sides of the human body. To facilitate the hanging and repositioning of the base plate 4 on the bed board 1, a limiting groove 8 is provided on both sides of the bed board 1, so that the base plate 4 stops sliding when it reaches the limiting groove position. The base plate 4 can also be used as a normal bed board when it slides onto the bed board 1.

[0050] In order to retract the first lifting arm 26 and the second lifting arm 27, a lifting plate 28 is provided at the lower end of the first lifting arm 26 and the second lifting arm 27, which passes through the bed hole 6. Lifting holes 29 are provided on the front and rear sides of the bed frame 24. The fixed shaft 25 is installed through the lifting hole 29 and slides up and down in the lifting hole 29. Limit rings 210 are provided at both ends of the fixed shaft 25. The fixed shaft 25 can be lifted and lowered in the lifting hole 29. The main function of the limit rings 210 is to ensure that the horizontal position of the fixed shaft 25 does not change when it moves up and down.

[0051] In addition, the bottom of the over-bed frame 24 is provided with a buffer clamping hole 211 for the first lifting arm 26 and the second lifting arm 27 to pass inward. The two sides of the buffer clamping hole 211 are connected to the outer sides of the first lifting arm 26 and the second lifting arm 27 by tension springs 212. The bottom of the hollow push frame 22 is provided with a through groove 212 for the first lifting arm 26 and the second lifting arm 27 to pass through.

[0052] The specific working principle of the above design is as follows: the fixed shaft 25 slowly rises in the lifting hole 29. Since the first lifting arm 26 and the second lifting arm 27 overlap on the side wall of the buffer clamping hole 211, and the initial sections of the first lifting arm 26 and the second lifting arm 27 are inclined, as the fixed shaft 25 drives the first lifting arm 26 and the second lifting arm 27 to rise, the first lifting arm 26 and the second lifting arm 27 slowly retract inward. The lifting plate 28 passes through the bed hole 6, clamps the bed plate 1, and moves it upward.

[0053] For a period of time initially, the bed frame 24 is stationary within the hollow push frame 22. The locking sliding assembly 23 plays a locking role. The locking sliding assembly 23 includes a locking block 231 that is disposed through the bottom of the bed frame 24 and located at the lower end of the fixed shaft 25. The locking block 231 has a compensating inclined surface 232 that is in compensating fit with the drive device 7 on the side near the drive device 7. The bottom of the hollow push frame 22 has a mounting groove 233 for connecting the locking block 231. One end of the locking block 231 is fixedly connected to the bottom of the mounting groove 233 by multiple springs.

[0054] The locking block 231 passes through the hollow push frame 22 and onto the bed frame 24, fixing the bed frame 24 onto the hollow push frame 22. After the first lifting arm 26 and the second lifting arm 27 clamp the bed plate 1, the bed frame 24 is released from the lock on the hollow push frame 22, and the bed plate 1 is moved outward.

[0055] The drive unit 7 primarily provides the power source and uses power to achieve the lifting and horizontal movement of the bed board 1. The drive unit 7 includes a bed board adjusting push block 71 slidably disposed inside the bed board 24. The lower end of the bed board adjusting push block 71 near the fixed shaft 25 has a sliding inclined surface 72 that matches the compensating inclined surface 232, and the upper end of the bed board adjusting push block 71 near the fixed shaft 25 has a pushing inclined surface 73. The end of the pushing inclined surface 73 has an arc-shaped fixing groove 74 that connects to the fixed shaft 25. A drive column 75 is fixedly connected to the end of the bed board adjusting push block 71 away from the bed board 24. The drive column 75 is connected to a motor, and the motor controls the retraction movement of the drive column 75. Multiple telescopic frames 213 are sleeved on the end of the bed board 24 near the drive unit 7. The ends of the telescopic frames 213 away from the bed board 24 are fixedly mounted on the hollow push frame 22.

[0056] The main working principle of the drive device 7 is as follows: the motor drives the drive column 75 to move outward, the bed adjusting push block 71 moves to the left, and under the push of the inclined plane 73, the fixed shaft 25 gradually rises in the lifting hole 29. The first lifting arm 26 and the second lifting arm 27 clamp the bed plate 1 and move it upward. When the fixed shaft 25 is quickly engaged in the arc-shaped fixing groove 74, the sliding inclined plane 72 engages with the compensating inclined plane 232, the sliding inclined plane 72 gradually moves to the left, and the locking block 231 moves downward to the mounting groove 23. Within 3, at this time, the fixed shaft 25 and the arc-shaped fixed groove 74 are just engaged, the locking effect of the locking block 231 is released, the drive column 75 pushes the fixed shaft 25, thereby driving the bed frame 24 to move outward. When it reaches a certain position, the drive column 75 stops driving and moves to the right. The fixed shaft 25 slowly descends in the lifting hole 29, and the bed plate 1 successfully passes through the bed. After that, the drive column 75 continues to move to the initial position, and the bed frame 24 is manually stored in the hollow push frame 22. The locking block 231 is engaged on the bed frame 24.

[0057] The main implementation of the bed board in this invention is as follows: The patient lies on the bed board 1 and slowly slides the base plate 4 to both sides. After passing through the bed hole 6, the base plate 4 is hung at both ends of the bed board 1. An adjustment plate 31 is set on the part of the patient roughly below the chest and moves slowly down with the adjustment plate 31. The patient's side pushes the adjustment rod 37 to move to both sides. When the part of the patient below the chest is completely in the concave part, the adjustment plate 31 roughly stops moving down, and the side chain plate 36 contacts the side of the patient. At this time, the knob 310 is turned to fix the adjustment rod 37, and the concave area no longer increases, thus positioning the patient and preventing movement. The arc plate 53 protrudes upward from the surface of the bed board 1 under the action of the lifting plate 52 to protect the patient's surrounding parts. After positioning, the bed board 1 is transferred to the bed through the drive device 7 and the bed transfer device 2.

[0058] The main operating steps of the medical bed transfer system of this invention are as follows:

[0059] Step 1: Slowly slide the base plate 4 to both sides of the overboard 1 until it is completely above the overboard 1;

[0060] Step 2: Rotate knob 310 until adjusting rod 37 is fixed;

[0061] Step 3: Start the motor to drive the first lifting arm 26 and the second lifting arm 27 to raise the overboard 1 and push the overboard frame 24 to move the overboard 1 to the overboard, and then lower the overboard 1.

[0062] Step 4: Wait for the drive device 7 to complete the bed transfer operation of the bed frame 24, turn off the motor, and manually push the bed frame 24 to the initial position.

[0063] It should be further explained that during the transfer process, the mechanical transmission only facilitates the transfer, achieving a labor-saving and smooth transition over the bed. While mechanical transmission promotes greater stability, manual assistance is still required to ensure a more stable transfer. In other words, this invention achieves a more stable transfer over the bed through mechanical transmission, while manual assistance is provided to prevent swaying.

[0064] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A medical bed transfer system, comprising a bed transfer board (1) disposed on a hospital bed, a bed transfer device (2) for transferring the bed transfer board (1) onto the bed, and a drive device (7) for controlling the bed transfer device (2), characterized in that, The bed board (1) is provided with an adapter component (3) that controls the downward concave area of ​​the bed board according to the volume of the patient's body. A pair of base plates (4) that provide basic support for the human body are slidably provided at the upper end of the bed board (1). Protective devices (5) that protect the edges of the human body are embedded on both sides of the bed board (1). The bed-crossing device (2) includes a main support frame (21) and a hollow push frame (22) mounted on the main support frame (21). A bed-crossing frame (24) is slidably mounted inside the hollow push frame (22) via a locking sliding assembly (23). A first lifting arm (26) and a second lifting arm (27) are rotatably mounted on the bed-crossing frame (24) via a fixed shaft (25). A drive device (7) is located inside the hollow push frame (22). The drive device (7) controls the first lifting arm (26) and the second lifting arm (27) to retract inward to clamp the bed-crossing plate (1) and push the bed-crossing frame (24) out of the hollow push frame (22). The adapter component (3) includes an adjustment plate (31) located below the base plate (4) to support the chest and below of the human body. The sides of the adjustment plate (31) are connected to side plates (33) that support the arms and head via telescopic plates (32).

2. The medical bed transfer system according to claim 1, characterized in that, Below the adjusting plate (31), a fixing plate (35) is connected by multiple spring cylinders (34). The fixing plate (35) is fixedly installed on the inner side wall of the bed plate (1). A chain plate (36) is provided between the side plate (33) and the telescopic plate (32). The telescopic plate (32) includes a first connecting plate (321) rotatably connected to the chain plate (36) and a second connecting plate (322) rotatably connected to the adjusting plate (31). The first connecting plate (321) is sleeved on the second connecting plate (322) by multiple first springs.

3. A medical bed transfer system according to claim 2, characterized in that, Below the chain plate (36) is an adjusting rod (37) that connects to the telescopic plate (32) or the chain plate (36). The adjusting rod (37) passes through the inner wall of the bed plate (1). A second spring (38) is wound around the adjusting rod (37). One end of the second spring (38) is connected to the adjusting rod (37), and the other end of the second spring (38) is connected to the inner wall of the bed plate (1). A limit block (39) is threadedly connected to the end of the adjusting rod (37) away from the telescopic plate (32). A knob (310) for controlling the rotation and movement of the limit block (39) is provided outside the bed plate (1).

4. A medical bed transfer system according to claim 3, characterized in that, The protective device (5) includes support rods (51) connected to both sides of the adjusting plate (31). The adjusting plate (31) is connected to a lifting plate (52) through the support rods (51). Arc plates (53) are provided on both sides of the lower end of the lifting plate (52). A fixed shaft (54) is provided on the bed plate (1). The arc plate (53) is slidably disposed on the fixed shaft (54). A long strip perforation (55) is provided on the side plate (33) for the arc plate (53) to pass through.

5. A medical bed transfer system according to claim 1, characterized in that, The base plate (4) is provided with rollers at the bottom and is rolled on the bed plate (1) by the rollers. The bed plate (1) is provided with limiting grooves (8) on both sides for the rollers to be engaged and fixed.

6. A medical bed transfer system according to claim 1, characterized in that, The bed plate (1) is provided with a bed hole (6) for the base plate (4) to slide through. The bed device (2) passes through the bed hole (6) and drives the bed plate (1) to move. The bed device also includes a lifting plate (28) provided at the lower end of the first lifting arm (26) and the second lifting arm (27) and passing through the bed hole (6). The bed frame (24) is provided with lifting holes (29) on the front and rear sides. The fixed shaft (25) is provided through the lifting hole (29) and slides up and down in the lifting hole (29). Limit rings (210) are provided at both ends of the fixed shaft (25).

7. A medical bed transfer system according to claim 6, characterized in that, The bottom end of the over-bed frame (24) is provided with a buffer clamping hole (211) for the first lifting arm (26) and the second lifting arm (27) to pass through inward, and the bottom of the hollow push frame (22) is provided with a through groove (212) for the first lifting arm (26) and the second lifting arm (27) to pass through.

8. A medical bed transfer system according to claim 3, characterized in that, The locking sliding assembly (23) includes a locking block (231) that runs through the bottom of the bed frame (24) and is located at the lower end of the fixed shaft (25). The locking block (231) has a compensating inclined surface (232) that is in compensating fit with the drive device (7) on the side near the drive device (7). The bottom of the hollow push frame (22) has a mounting groove (233) for connecting the locking block (231). One end of the locking block (231) is fixedly connected to the bottom of the mounting groove (233) by multiple springs.

9. A medical bed transfer system according to claim 8, characterized in that, The drive device (7) includes a bed frame adjusting push block (71) that is slidably disposed inside the bed frame (24). The lower end of the bed frame adjusting push block (71) near the fixed shaft (25) is provided with a sliding inclined surface (72) that fits with the compensation inclined surface (232). The upper end of the bed frame adjusting push block (71) near the fixed shaft (25) is provided with a pushing inclined surface (73). The end of the pushing inclined surface (73) is provided with an arc-shaped fixed groove (74) that connects with the fixed shaft (25). A drive column (75) is fixedly connected to the end of the bed frame adjusting push block (71) away from the bed frame (24). The drive column (75) is connected to a motor, and the motor controls the retraction movement of the drive column (75). Multiple telescopic frames (213) are sleeved on one end of the bed frame (24) near the drive device (7), and the telescopic frames (213) are fixedly installed on the hollow push frame (22) at the other end away from the bed frame (24).

10. The transfer method of the medical bed transfer system according to claim 9, characterized in that, Specifically, the steps include the following: Step 1: Slowly slide the base plate to both sides of the overboard until it is completely above the overboard. Step 2: Rotate the knob until the adjusting rod is fixed; Step 3: Start the motor to drive the first and second lifting arms to raise the overboard and push the overboard frame to move the overboard through the bed. Then lower the overboard. Step 4: Wait for the drive unit to complete the bed transfer operation of the bed frame, turn off the motor, and manually push the bed frame back to the initial position.

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