Intelligent transfer bed

Abstract

The invention discloses an intelligent transfer bed, relates to the field of medicine and human engineering, and solves the problems that in the patient transfer process of an existing transfer bed, a patient needs to be moved or the patient itself needs to be moved, secondary injury is caused to the patient, meanwhile, time and labor are wasted, and transfer cannot be achieved in a narrow space. A bed frame unit and a drive unit; the bed panel unit is movably mounted on the bed frame unit; the bed panel unit is formed by assembling a head and shoulder bed plate, a waist and hip bed plate and a leg bed plate; the driving unit comprises a driving wheel mechanism mounted on the supporting legs and a driving mechanism for driving the bed plate supporting beam to lift; according to the transfer bed, the rotating mechanisms are arranged on the two supporting legs at one end of the bed frame, so that the supporting legs can span a sickbed or a target bed after rotating outwards by 90 degrees, and the utilization space range is reduced; and after the position is determined, the supporting legs are fixed, so that the safety during use is ensured.

Description

Technical Field

[0001] This invention relates to the fields of medicine and ergonomics, and specifically to an intelligent transfer bed. Background Technology

[0002] Patient transport beds are used for bed-to-bed transfers, such as transport bed to hospital bed, target bed to transport bed, or transport bed to target bed. Since most patients transported by hospital bed are elderly people who have lost their mobility or have difficulty moving, existing transport beds require multiple young and strong people (four people) to operate, which is difficult to achieve for most family structures. Therefore, researchers have developed various types of transport beds, such as:

[0003] Existing patent document 1, patent name "A Medical Transfer Bed", patent number: 202023350204.8, which facilitates the lateral movement of patients by setting up a conveying mechanism on both sides of the transfer bed.

[0004] Existing patent document 2, patent name "An Intelligent Multifunctional Transfer Bed", patent number: 202021168101.7, the technical content of this patent is to set up an adjustable height infusion stand on the transfer bed to meet the needs of patients and install a device that can monitor the patient's blood oxygen saturation and heart rate in real time, so as to realize real-time monitoring of patients.

[0005] Existing patent document 3, patent titled "Traction Mechanism and Medical Transfer Bed Applied to Medical Transfer Bed", patent number: 202020600780.4, describes a transfer bed that uses a traction mechanism and a medical transfer bed. A crossbar extends along the width of the transfer bed until a stop bar is located on the side of the patient away from the transfer bed. When the crossbar retracts, it drives the stop bar to move, allowing the stop bar to push against the patient and move the patient toward the transfer bed until at least partially moving the patient onto the transfer bed, thus achieving the function of assisting in the movement of the patient.

[0006] The aforementioned transport beds can all facilitate patient transfer, but they all have the following problems: During transport, the patient must be moved; however, due to varying patient conditions, this movement can inevitably cause secondary injury. Furthermore, none of these transport beds can directly transport a patient who has collapsed. Additionally, both the transport bed and the designated bed require space; transport beds cannot be used when the patient is in a confined space.

[0007] Therefore, in response to current needs, there is an urgent need to develop a transport bed that saves time and effort for patients or medical staff and enables intelligent patient transfer. Summary of the Invention

[0008] This invention addresses the problems of existing patient transport beds, which require moving the patient or the patient moving themselves during transport, causing secondary injury to the patient, being time-consuming and labor-intensive, and being unable to transport patients in confined spaces. The invention provides an intelligent transport bed.

[0009] An intelligent transfer bed includes a bed panel unit, a bed frame unit, and a drive unit; the bed panel unit is movably mounted on the bed frame unit; the bed panel unit is assembled from a head and shoulder board, a lumbar and hip board, and a leg board.

[0010] The bed frame unit includes a top frame, four support leg units connected to the top frame, and a bed board support beam;

[0011] The two support leg units at one end of the bed frame unit each consist of a support leg mechanism fixed to the top frame and support wheels mounted on the support legs;

[0012] The support leg mechanism comprises an upper support leg fixed to the top frame, a rotating mechanism mounted on the upper support leg, a lower support leg fixed to the rotating mechanism, and a support wheel mounted on the lower support leg.

[0013] The two support leg units at the other end of the bed frame unit each include a support leg fixed to the top frame and a drive mechanism mounted on the support leg.

[0014] The rotating mechanism includes a support leg rotating shaft, a corner limiting sleeve, a rotating handle, a corner limiting sleeve positioning pin, a support leg stiffener plate, a bearing, and a rotating handle rotating shaft;

[0015] The rotating shaft of the support leg is installed inside the upper support leg and fixedly connected to the top bed frame. The bearing is connected to the rotating shaft of the support leg and locked by a washer and nut. The support leg stiffener is connected and fixedly connected to the lower support leg.

[0016] An angle limiting and positioning sleeve is installed on the rotating shaft of the support leg. Two semi-circular keyways are machined on the outer circular surface of the angle limiting sleeve. The two semi-circular keyways are 90 degrees apart in the circumferential direction. After the angle direction of the support leg is determined, the angle limiting sleeve is fastened to the rotating shaft of the support leg by the angle limiting sleeve positioning pin. One end of the rotating handle is hinged to the support leg rib plate through the rotating handle shaft, and the other end is set as a semi-circular key structure that cooperates with the semi-circular keyway. When the rotating handle is engaged in the rib plate groove, the semi-circular key of the rotating handle is inserted into the semi-circular keyway, fixing the support leg to the bed frame.

[0017] After the rotating handle is pulled out of the rib slot and flipped outward to a horizontal position, move the rotating handle to rotate the two support legs outward 90 degrees to both sides, and then put the rotating handle back into the rib slot and lock it.

[0018] The drive unit includes a drive wheel mechanism mounted on the support leg, and a drive mechanism for driving the bed board support beam to rise and fall.

[0019] When transferring a patient, the two support legs at one end of the bed frame unit are rotated 90 degrees outward by a rotating mechanism, so that the transfer bed straddles both sides of the hospital bed. The head and shoulder bed board, the lumbar and hip bed board, and the leg bed board are then inserted into the bottom of the corresponding parts of the patient's body in sequence. At the same time, the sides of the head and shoulder bed board, the lumbar and hip bed board, and the leg bed board are connected to the bed board support beam. Then, the drive mechanism lifts the bed panel unit off the hospital bed. The rotating mechanism returns the support legs from the position of rotating 90 degrees outward to the normal operating position. After the bed panel unit of the transfer bed is lowered to a safe height, the locking mechanism of the four support legs is connected to the bed board support beam to form a fixed structure bed. At this time, the transfer bed is driven to move by the drive wheel mechanism.

[0020] The beneficial effects of this invention are:

[0021] 1. The transfer bed of the present invention has a rotating mechanism on two support legs at one end of the bed frame, which allows the support legs to rotate 90 degrees outward and cross over the hospital bed or target bed, reducing the space required; after the position is determined, the support legs are fixed to ensure safety during use.

[0022] 2. The transport bed described in this invention is designed according to ergonomics and takes into account the differences in human height. The bed panel is divided into three parts: the head and shoulder board, the waist and hip board, and the leg board. During the transport process, the head and shoulder board, the waist and hip board, and the leg board are inserted in sequence at the point where the patient contacts the hospital bed or the target bed, without the need to move the patient, thus ensuring that the patient is not subjected to secondary injury.

[0023] 3. The transfer bed described in this invention adopts a bed frame unit with a structure similar to a gantry crane to realize lifting and lowering during the transfer process. At the same time, it can also be used to transfer patients who suddenly fall ill (such as those who have fallen to the ground).

[0024] 4. The length, width, and height of the transport bed described in this invention all meet the application standards of national hospitals. At the same time, it has high safety. The transport bed of this invention is equipped with a drive wheel mechanism, which can be completely operated by one person (nurse or child) to complete the transfer of the patient from the ground, from the hospital bed, and from the target bed, thereby saving a lot of human resources. Attached Figure Description

[0025] Figure 1 This is a front view of an intelligent transfer bed according to the present invention;

[0026] Figure 2 for Figure 1The left view;

[0027] Figure 3 for Figure 1 The right view;

[0028] Figure 4 for Figure 3 Enlarged view within the center circle;

[0029] Figure 5 for Figure 1 Top view;

[0030] Figure 6 for Figure 1 Top view of the two outriggers after they have been rotated 90 degrees outward;

[0031] Figure 7 This is a front view of the head and shoulder bed board, the lumbar and hip bed board, and the leg bed board in the bed panel unit;

[0032] Figure 8 This is a schematic diagram showing the bed panel installed on the bed support beam after assembly.

[0033] Figure 9 This is a side view of the bed panel after assembly and its connection to the bed panel support beam.

[0034] In the diagram: 1. Drive wheel, 2. Steering shaft, 3. Electric cylinder, 4. Leg bed board, 5. Steel cable, 6. Bed board support beam, 7. Waist and hip bed board, 8. Head and shoulder bed board, 9. L-shaped baffle, 10. Support wheel, 11. Lower support leg, 12. Support leg rotating shaft, 13. Corner limit sleeve, 14. Rotary handle locking pin structure, 14-1. Bushing, 14-2. Locking pin, 14-3. Limit pin, 14-4. Spring, 15. Rotary handle, 16. Corner limit sleeve positioning pin, 17. Bearing, 18. Rotary handle shaft, 19. Top frame, 20. Sprocket, 21. First servo motor, 22. Steel cable pulley, 23. Chain, 24. Motor support shaft, 25. Second servo motor, 26. Support leg rib plate, 27. Connecting pipe. Detailed Implementation

[0035] Combination Figures 1 to 9 This embodiment describes an intelligent transfer bed that enables one person to operate and transfer a patient. First, the bed panel is designed according to ergonomics. The human spine is like a curved bow, with the cervical and lumbar vertebrae tending inward. When a person lies flat on the bed or the ground, for a person of average weight, the cervical and lumbar vertebrae have gaps or loose connections with the bed or the ground.

[0036] Then, since the cross-section of the human body is an arc shape (towards an ellipse), when a person lies flat, the real point of force is the head, the 150 to 200 mm wide area between the two sides of the spine, the buttocks are only a 200 x 200 mm square area, and then the legs. In this way, there is no place where the edges of the human body come into contact with the bed or the ground.

[0037] Based on the above reasons, and considering individual differences, mainly human height, such as the difference in head size ratio, hip ratio, and leg and chest ratio between an adult who is 185 cm tall and an adult who is 160 cm tall, in other words, the characteristic that taller people have longer legs and chests than shorter people, this embodiment provides an intelligent transfer bed, which includes a bed panel unit, a bed frame unit and a drive unit.

[0038] like Figure 1 , Figures 7 to 9 As shown, the bed panel unit consists of a head and shoulder bed board 8, a waist and hip bed board 7, and a leg bed board 4;

[0039] The head and shoulder bed board 8, the waist and hip bed board 7, and the leg bed board 4 are all composed of two symmetrical bed boards that are movably connected by the connecting tube 27.

[0040] The head and shoulder bed board 8, the waist and hip bed board 7, and the leg bed board 4 are all provided with arc-shaped grooves on both sides. The grooves fit perfectly into the bed board support beam 6, forming a complete bed board after insertion.

[0041] The backrest board 8 and the lumbar and hiprest board 7 are designed with a hollow structure.

[0042] In this embodiment, based on the differences in human height, Figure 7 As shown, the head and shoulder bed board 8 consists of two symmetrical bed boards, which are connected by a high-strength connecting tube 27. The connecting tube 27 passes through the spinal gap, and the head area is a complete bed surface. When the left bed board is placed, the head can be turned slightly to the right; when the right bed board is placed, the head can be turned to the left, and the head will then lie on the left bed board. The right bed board can be spliced ​​with the left bed board to form a complete head and shoulder bed board 7. The shape of the head and shoulder bed board 7 after splicing is like a city gate, and the city gate is the part where the back contacts the bed surface or the ground. Therefore, the patient does not need to be moved when assembling the left and right bed boards. The overall dimensions of the bed board after splicing are 550 cm wide and 450 cm long.

[0043] The lumbar and hip bed board consists of two symmetrical sections, connected by two high-strength connecting tubes 27. One connecting tube 27 passes through the gap in the lumbar spine, while the other connects at the lower end of the hip and thigh. With the thigh and calf bent and the knee off the bed, there is a natural gap under the thigh, allowing the connecting tube to pass through easily. Once assembled, the lumbar and hip bed board is U-shaped, with the cutouts precisely where the buttocks contact the bed or floor. Therefore, it is not necessary to move the patient when assembling the left and right bed boards. The assembled bed board has a width of 550 cm and a length of 450 cm.

[0044] The leg support board consists of two symmetrical sections connected by a high-strength connecting tube 27. The connecting tube 27 is positioned directly below the lower leg. When placing the left side of the board, first insert the left side under the patient's left leg, then insert the right side under the patient's right leg. The assembled board measures 550 cm in width and 500 cm in length. Figure 9 As shown, there is an arc-shaped groove on both sides of the three-part bed board. The groove can fit the 30 mm diameter tube of the bed board support beam 6. After the two tubes are inserted, a complete bed board is formed.

[0045] like Figures 1 to 3 as well as Figure 5 As shown, the bed frame unit includes a top frame 19, four support leg units connected to the top frame 19, and a bed board support beam 6;

[0046] The two support leg units at one end of the bed frame unit are each composed of a support leg mechanism fixed to the top frame 19 and a support wheel 10 installed on the support leg;

[0047] The support leg mechanism comprises an upper support leg fixed to the top frame 19, a rotating mechanism installed on the upper support leg, a lower support leg 11 fixed to the rotating mechanism, and a support wheel 10 installed on the lower support leg 11.

[0048] The two support leg units at the other end of the bed frame unit each include a support leg fixed to the top frame 19 and a drive mechanism mounted on the support leg.

[0049] In this embodiment, the bed frame unit adopts a gantry lifting structure and is designed according to the dimensions of various beds used in hospitals according to national standards (bed surface length 1900-2000 mm, width 900-1000 mm, bed surface height from the ground 480-630 mm). The bed frame is 2000-2100 mm long, 700-800 mm wide, and 1700-1900 mm high. The primary function of the transfer bed is to facilitate patient transport. Hospitals have door width restrictions (generally a minimum of 800 mm), so the transfer bed is designed with a width of 700-800 mm. In order to enable the lifting and transport of patients from the hospital bed, two of its support legs are designed to rotate outward by 90 degrees to both sides. After the two support legs rotate outward by 90 degrees, the width between the two support legs can reach 1120-1220 mm.

[0050] like Figure 1 As shown, the rotating mechanism includes a support leg rotating shaft 12, a corner limiting sleeve 13, a rotating handle locking pin structure 14, a rotating handle 15, a corner limiting sleeve positioning pin 16, a support leg stiffener plate 26, a bearing 17, and a rotating handle rotating shaft 18.

[0051] The support leg rotation shaft 12 is installed in the upper support leg through the bearing 17 and is fixedly connected to the top bed frame 19 through the fixed bushing, and is locked by the washer and nut, so that the support leg can rotate around the support leg rotation shaft. The support leg stiffener 26 is connected and fixed to the lower support leg 11.

[0052] To ensure structural stability during the movement of the support leg, an angle limiting and positioning sleeve 13 is installed in the middle of the support leg rotation shaft 12. Two semi-circular keyways are machined on the outer surface of the angle limiting sleeve 13, with the two semi-circular keyways forming a 90-degree angle in the circumferential direction. After the angle direction of the support leg is determined, the angle limiting sleeve 13 is fastened to the support leg rotation shaft 12 through the angle limiting sleeve positioning pin 16. To position the angle between the bed frame and the support leg, one end of the rotating handle 15 is installed in the support leg rib plate 26 and hinged to the support leg rib plate 26 through the handle rotating shaft 18. The other end is set as a semi-circular key that mates with the semi-circular keyway. When the rotating handle 15 is engaged with the rib plate groove, the semi-circular key of the rotating handle is inserted into the semi-circular keyway, fixing the support leg and the bed frame in place.

[0053] After the rotating handle 15 is pulled out of the rib slot and flipped outward to a horizontal position, move the rotating handle 15 to rotate the two support legs outward by 90 degrees to both sides, and then put the rotating handle 15 back into the rib slot and lock it.

[0054] like Figure 3 and Figure 4As shown, in this embodiment, in order to prevent the rotating handle 15 from coming off, a rotating handle locking pin structure 14 is installed on the support leg plate 26. The rotating handle locking pin structure 14 consists of a bushing 14-1, a locking pin 14-2, a limiting pin 14-3, and a spring 14-4.

[0055] The bushing 14-1 has a stepped inner hole and a stepped outer circle, with the smaller diameter being a thread. The outer circle of the bushing 14-1 consists of two parts: a threaded part with a smaller diameter and a smooth cylindrical surface with a larger diameter. In the threaded rotating rib plate, the stepped shoulder surface between the thread and the larger diameter part and the bed frame support leg rib plate surface can lock the bushing 14-1. The locking pin 14-2 has a stepped outer circle, with its smaller diameter matching the small hole of the bushing. The small diameter hole and the small diameter outer circle of the locking pin 14-2 are in sliding fit, while the large diameter hole of the bushing 14-1 and the large diameter outer circle of the locking pin 14-2 are in clearance fit. A spring 14-4 is installed between the stepped outer circle of the locking pin 14-2 and the stepped hole of the bushing 14-1. The spring force causes the bushing 14-1 and the locking pin 14-2 to disengage axially. The rotating handle has a locking hole. When the rotating handle 15 is engaged in the groove between the two stiffeners of the bed frame support leg, the limiting pin 14-3 is inserted into the locking hole of the rotating handle 15 under the force of the spring 14-4 and fixed therein. When the rotating handle 15 is turned out, the locking pin 14-2 is pulled out and rotated so that the limiting pin 14-3 falls on the end face of the bushing 14-1, so that the locking pin 14-2 is disengaged from the locking hole of the rotating handle 15.

[0056] In this embodiment, another function of the rotating handle 15 is that when rotating the support legs, the rotating handle can be pulled out of the rib slot and flipped to a horizontal position, which increases the rotational lever ratio of the support legs, reduces the rotational force, and facilitates operation. After rotating outward 90 degrees, the width of the two support legs is 1120-1220 mm (space width), which can easily straddle the bed. When transporting the patient, the process is the same as the above-mentioned bed board splicing process. After the patient lies on the transport bed board, the four steel cables (steel wire ropes) on the top bed frame lift the bed board off the hospital bed through the bed board support beams 6 on both sides of the bed board. After the transport bed is detached from the hospital bed straddle state, the two support legs rotate from the position of rotating outward 90 degrees to the sides back to the normal operating position. After the height of the transport bed board is lowered by 450 mm, the locking mechanism of the four legs of the bed is connected to the two bed board support beams 6 of the transport bed to form a fixed structure bed. When it returns to the normal position, the width of the bed is 750 mm, and the transport bed can carry the patient to various examination rooms in the hospital.

[0057] In this embodiment, the locking mechanism includes an L-shaped baffle 9 installed on two support legs at one end of the bed frame unit and an electric cylinder 3 installed on two support legs at the other end of the bed frame unit corresponding to the position of the L-shaped baffle 9.

[0058] When the patient lies on the bed panel unit, one end of the bed panel support beam 6 is in close contact with the L-shaped baffle, and the other end is inserted into the tube of the bed panel support beam through the telescopic rod of the electric cylinder and threaded in place, so that the bed panel support beam is stable.

[0059] In this embodiment, the drive unit includes a drive wheel mechanism mounted on the support leg, and a drive mechanism for driving the bed board support beam 6 to rise and fall.

[0060] The drive wheel mechanism includes a second servo motor 25, a steering shaft 2, and drive wheels 1; the two drive wheels 1 are coaxial; the shaft is perpendicular to the steering shaft 2, and the steering shaft 2 is connected to two support legs; the two drive wheels 1 are driven by two corresponding second servo motors 25, and the second servo motors 25 are controlled by a driver.

[0061] The drive mechanism of the bed support beam includes a sprocket 20, a first servo motor 21, a steel cable 5, a steel cable pulley 22, a chain 23, and a motor support shaft 24. The motor support shaft 24 (which can be a coaxial motor with outputs at both ends or a motor with outputs at one end, but requires a set of synchronous pulleys to transmit the motor's rotation to the support shaft), the sprocket 20, and the steel cable pulley 22 all have keyways, which are fastened together. Thus, the first servo motor 21 rotates, driving the motor support shaft 24. The motor support shaft 24, through the keyways, drives the sprocket 20 and the steel cable pulley 22 to rotate synchronously. All four steel cable pulleys 22 have the same diameter, and the steel cable 5 is synchronously lifted, causing the bed support beam 6 to move up and down. 。

[0062] In this embodiment, the transport bed adopts a hoisting structure, which can not only realize the transfer from the patient bed to the transport bed and then to the target bed, but also complete the transfer from the ground to the target bed and then to the patient bed. In reality, hospitals often encounter elderly patients who, although they can walk, cannot get onto the examination bed when undergoing MRI examinations. With this transport bed, as long as the bed width does not exceed 1100 mm, intelligent transfer of patients can be completed.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An intelligent transfer bed, comprising a bed panel unit, a bed frame unit, and a drive unit; wherein the bed panel unit is movably mounted on the bed frame unit; characterized in that: The bed panel unit is assembled from a head and shoulder bed board (8), a waist and hip bed board (7), and a leg bed board (4); The bed frame unit includes a top frame (19), four support leg units connected to the top frame (19), and a bed board support beam (6); The two support leg units at one end of the bed frame unit are each composed of a support leg mechanism fixed to the top frame (19) and a support wheel (10) mounted on the support leg; The support leg mechanism comprises an upper support leg fixed to the top frame (19), a rotating mechanism installed on the upper support leg, a lower support leg (11) fixed to the rotating mechanism, and a support wheel (10) installed on the lower support leg (11). The two support leg units at the other end of the bed frame unit each include a support leg fixed to the top frame (19) and a drive mechanism mounted on the support leg; The rotating mechanism includes a support leg rotating shaft (12), a corner limiting sleeve (13), a rotating handle (15), a corner limiting sleeve positioning pin (16), a support leg stiffener plate (26), a bearing (17), and a rotating handle rotating shaft (18); The support leg rotating shaft (12) is installed inside the upper support leg and fixedly connected to the top bed frame (19). The bearing (17) is connected to the support leg rotating shaft (12) and locked by a washer and nut. The support leg stiffener plate (26) is connected and fixedly connected to the lower support leg (11). An angle limiting positioning sleeve (13) is installed on the rotating shaft (12) of the support leg. Two semi-circular keyways are machined on the outer circular surface of the angle limiting sleeve (13). The two semi-circular keyways are 90 degrees apart in the circumferential direction. After the angle direction of the support leg is determined, the angle limiting sleeve (13) is fastened to the rotating shaft (12) of the support leg through the angle limiting sleeve positioning pin (16). One end of the rotating handle (15) is hinged to the support leg rib plate (26) through the rotating handle shaft (18), and the other end is set as a semi-circular key structure that cooperates with the semi-circular keyway. When the rotating handle (15) is engaged in the rib plate groove, the rotating handle semi-circular key is inserted into the semi-circular keyway to fix the support leg to the bed frame. When the rotating handle (15) is pulled out of the rib slot and flipped outward to a horizontal position, move the rotating handle (15) to rotate the two support legs outward by 90 degrees to both sides, and then put the rotating handle (15) back into the rib slot and lock it. The drive unit includes a drive wheel mechanism mounted on the support leg, and a drive mechanism for driving the bed support beam (6) to rise and fall. When transferring a patient, the two support legs at one end of the bed frame unit are rotated 90 degrees outward by the rotating mechanism, so that the transfer bed straddles both sides of the hospital bed. The head and shoulder bed board (8), the waist and hip bed board (7), and the leg bed board (4) are inserted into the bottom of the corresponding parts of the patient in sequence. At the same time, the head and shoulder bed board (8), the waist and hip bed board (7), and the leg bed board (4) are connected to the bed board support beam (6) on both sides. Then, the bed panel unit is lifted off the hospital bed by the drive mechanism. The support legs are rotated from the position of rotating 90 degrees outward to both sides to the normal operating position by the rotating mechanism. After the bed panel unit of the transfer bed is lowered to a safe height, it is connected to the bed board support beam (6) of the transfer bed by the locking mechanism of the four support legs to form a fixed structure bed. At this time, the transfer bed is driven to move by the drive wheel mechanism.

2. The intelligent transfer bed according to claim 1, characterized in that: A rotary handle locking pin structure (14) is installed on the supporting leg rib plate (26). The rotary handle locking pin structure (14) consists of a bushing (14-1), a locking pin (14-2), a limiting pin (14-3), and a spring (14-4). The bushing (14-1) has a stepped inner hole and a stepped outer circle. The small stepped circle is threadedly connected to the supporting leg rib plate (26). The locking pin (14-2) is a stepped pin, and its end face is connected to the bushing (14-1). -1) A spring (14-4) is installed between the step holes. When the rotating handle (15) is engaged in the groove between the two stiffeners of the support leg, the limiting pin (14-3) is inserted into the locking hole of the rotating handle 15 under the force of the spring (14-4) to fix it. When the rotating handle (15) is turned out, the locking pin (14-2) is pulled out and rotated so that the limiting pin (14-3) falls on the end face of the bushing (14-1) so that the locking pin (14-2) is disengaged from the locking hole of the rotating handle (15).

3. The intelligent transfer bed according to claim 1, characterized in that: The locking mechanism includes an L-shaped baffle (9) installed on two support legs at one end of the bed frame unit and an electric cylinder (3) installed on two support legs at the other end of the bed frame unit at the corresponding position of the L-shaped baffle (9). When the patient lies on the bed panel unit, one end of the bed panel support beam (6) is in close contact with the L-shaped baffle, and the other end is inserted into the tube of the bed panel support beam through the telescopic rod of the electric cylinder and threaded in place, so that the bed panel support beam is stable.

4. The intelligent transfer bed according to claim 1, characterized in that: The drive wheel mechanism includes a second servo motor (25), a steering shaft (2), and drive wheels (1); the two drive wheels (1) are coaxial; the shaft is perpendicular to the steering shaft (2), and the steering shaft (2) is connected to two support legs; the two drive wheels (1) are driven by two corresponding second servo motors (25), and the second servo motors (25) are controlled by a driver.

5. The intelligent transfer bed according to claim 1, characterized in that: The drive mechanism of the bed board support beam includes a sprocket (20), a first servo motor (21), a steel cable (5), a steel cable wheel (22), a chain (23), and a motor support shaft (24); The first servo motor (21) is mounted on the bed frame unit. The motor support shaft (24), sprocket (20) and steel cable pulley (22) are fastened together by keyway. The first servo motor (21) rotates to drive the motor support shaft (24). The motor support shaft (24) drives the sprocket (20) and steel cable pulley (22) to rotate synchronously through the key. The steel cable (5) is synchronously lifted to make the bed board support beam (6) move up and down.

6. The intelligent transfer bed according to claim 1, characterized in that: The head and shoulder bed board (8), the waist and hip bed board (7), and the leg bed board (4) are all composed of two symmetrical bed boards that are movably connected by a connecting tube (27); The head and shoulder bed board (8), the waist and hip bed board (7) and the leg bed board (4) are all provided with arc grooves on both sides. The grooves fit the bed board support beam (6) and form a complete bed board after they are placed in. The backrest board (8) and the waist and hip board (7) are designed with a hollow structure.

7. The intelligent transfer bed according to claim 6, characterized in that: The head and shoulder bed board (8) has a width of 550 cm and a length of 450 cm after splicing; the waist and hip bed board (7) has a width of 550 cm and a length of 450 cm after splicing; and the leg bed board (4) has a width of 550 cm and a length of 500 cm after splicing.

8. The intelligent transfer bed according to claim 1, characterized in that: During transport, the safe height of the bed panel unit is 450 mm; when the two support legs are rotated 90 degrees outward to both sides, the distance between the two support legs is 1120-1220 mm; when the two support legs return to their normal position, the width of the transport bed is 750 mm.

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