A multi-functional bed care transfer device

Abstract

The application discloses a multifunctional bed nursing shifting device, and belongs to the technical field of health care assistive devices, which comprises a frame, can assist the bedridden patient in turning over, reduces the burden of nursing staff, reduces the risk of secondary injury caused by improper turning over, adjusts the position of the auxiliary straight plate to be flush with the bed edge, prevents the patient from falling off the bed, facilitates the removal of the patient from the bed, realizes semi-automatic operation through mechanical assistance, significantly reduces the physical consumption and operation difficulty of the nursing staff, helps to improve the overall nursing quality and efficiency, and through the cooperation of the supporting unit, the linkage unit and the position adjusting unit, can be flexibly converted between the wheelchair mode and the turning over assisting mode, each supporting plate can be horizontally unfolded to form a turning over assisting straight plate, or can be folded and combined into a wheelchair seat, greatly improving the applicability and space utilization efficiency of the equipment, and adapting to different use scenarios.

Description

Technical Field

[0001] This invention relates to the field of assistive devices for health and wellness, and in particular to a multifunctional bedridden care and repositioning device. Background Technology

[0002] In hospitals, rehabilitation centers, or home care settings, long-term bedridden patients, due to limited independent mobility, require regular turning to prevent complications such as pressure sores, muscle atrophy, and hypostatic pneumonia. Traditional turning procedures typically rely on manual intervention by caregivers, which not only demands high physical strength and operational skills but also risks causing patient discomfort or even secondary injury due to improper operation or uneven force. Especially for heavier patients or those in unusual positions, manual turning often requires multiple people working together, resulting in low efficiency and safety hazards. Existing turning aids are mostly single-function and fixed in structure, making them difficult to adapt to patients of different body types and diverse care scenarios. Some devices can only partially raise or tilt the bed, failing to assist patients in transitioning from bed to sitting or from bed to wheelchair. Furthermore, most assistive devices still rely on manual intervention for position adjustment and posture control, resulting in low automation and failing to fundamentally alleviate the workload of caregivers. Therefore, this invention provides a multifunctional bedridden care and transfer device. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a multifunctional bedridden care transfer device. It overcomes the problems of traditional turning and care relying on manual labor, being laborious to operate, inefficient, and prone to causing secondary injuries, as well as the limited functionality, low degree of automation, and insufficient practicality and safety of existing auxiliary equipment.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional bedridden care transfer device, comprising a frame, on which two drive wheels, two steering wheels, and two foot pedals are mounted; symmetrically slidably mounted unfolding slides are mounted on the frame; each unfolding slide is slidably mounted with an adjusting slide; each adjusting slide is provided with a support unit and an adjusting unit; the support unit includes an adjusting side plate; and each adjusting side plate is movably mounted with a first supporting plate, a second supporting plate, and a third supporting plate; when the first supporting plate, the second supporting plate, and the third supporting plate are in a horizontal state, they form a [missing information - likely a specific configuration or arrangement]. The assisted turning board has a spline shaft 2 and a linkage gear 3 between the support square plate 1 and the adjustment side plate, a spline shaft 1 and a linkage gear 1 between the support square plate 2 and the adjustment side plate, and a linkage square plate between the support square plate 3 and the adjustment side plate. A linkage unit is set between the spline shaft 1, the linkage square plate, and the spline shaft 2 on the same adjustment side plate. The adjustment unit includes a sector-shaped rotating block rotatably mounted on the adjustment slide. The adjustment side plates are respectively fixedly mounted on the corresponding sector-shaped rotating blocks. The adjustment unit is used to adjust the position of the assisted turning board to assist the patient in turning over independently.

[0005] Furthermore, two drive wheels are symmetrically mounted on the frame, two steering wheels are symmetrically mounted on the frame, a drive box and a battery pack are disposed between the two drive wheels and the two steering wheels, both of which are fixedly mounted on the frame, and two foot pedals are symmetrically fixedly mounted on the frame.

[0006] Furthermore, the linkage square plate is slidably installed on the corresponding adjustment side plate, and the support square plate is fixedly installed on the corresponding linkage square plate.

[0007] Furthermore, both linkage gear one and linkage gear three are rotatably mounted on the adjustment side plate, support square plate two is fixedly mounted on the end of the corresponding spline shaft one, and support square plate one is fixedly mounted on the end of the corresponding spline shaft two. Spline shaft one and the corresponding linkage gear one form a spline sliding fit, and spline shaft two and the corresponding linkage gear three form a spline sliding fit.

[0008] Furthermore, a protective shell is fixedly installed on the adjustment side plate. Angle adjustment motor one and angle adjustment motor two are fixedly installed inside the protective shell. A transmission gear one is fixedly installed on the output shaft of angle adjustment motor one. Transmission gear one and linkage gear one mesh to form a gear pair. A transmission gear three is fixedly installed on the output shaft of angle adjustment motor two. Transmission gear three and linkage gear three mesh to form a gear pair.

[0009] Furthermore, the linkage unit includes an adjustable side plate disposed inside the protective shell, the adjustable side plate and the corresponding linkage square plate are fixedly connected, spline shaft one and spline shaft two are rotatably connected to the corresponding adjustable side plate, an adjustable lead screw is also rotatably mounted on the adjustable side plate, the adjustable lead screw and the adjustable side plate form a helical pair, an adjustable motor is also fixedly mounted inside the protective shell, a transmission gear two is fixedly mounted on the output shaft of the adjustable motor, a linkage gear two is fixedly mounted on the adjustable lead screw, the transmission gear two and the linkage gear two mesh to form a gear pair.

[0010] Furthermore, symmetrically rotating unfolding screws are mounted on the frame, and the unfolding screws and corresponding unfolding slides form a helical pair. Each unfolding slide is also fixedly mounted with a height adjustment motor. The piston rod end of the height adjustment motor is fixedly connected to the adjustment slide. An adjustment motor is also fixedly mounted on the adjustment slide. An adjustment gear is fixedly mounted on the output shaft of the adjustment motor. Each sector-shaped rotating block is fixedly mounted with a sector-shaped rack. The sector-shaped racks and their corresponding sector-shaped racks mesh to form a gear pair.

[0011] Furthermore, when all three support plates are in a horizontal state, their upper surfaces are all on the same plane, and soft pads are fixedly installed on all three support plates.

[0012] Furthermore, each adjusting slide is fixedly equipped with a handrail and a push rod. The handrail is located on the side of the corresponding support plate three, and the push rod is located at the upper end of the adjusting slide.

[0013] The beneficial effects of this invention compared with the prior art are: (1) This invention can assist in turning over bedridden patients, which reduces the burden on nursing staff and also reduces the risk of secondary injury caused by improper turning over. (2) This invention can adjust the position of the auxiliary straight plate to be flush with the edge of the bed, which can prevent patients from falling and facilitate the removal of patients from the bed. (3) This invention achieves semi-automatic operation through mechanical assistance, which significantly reduces the physical exertion and operational difficulty of nursing staff, making nursing work easier and more standardized, and helping to improve the overall quality and efficiency of nursing care. (4) Through the cooperation of the support unit, linkage unit and adjustment unit, this invention can flexibly switch between wheelchair mode and turning over assistance mode. Each support plate can be horizontally unfolded to form a turning over assistance straight plate, or folded and combined to form a wheelchair seat, which greatly improves the applicability and space utilization efficiency of the equipment and adapts to different usage scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a front view of the overall structure of the present invention.

[0016] Figure 3 This is a side view of the overall structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the adjustment unit of the present invention.

[0018] Figure 5 This is a front view of the adjustment unit of the present invention.

[0019] Figure 6 This is a schematic diagram of the structure of the support unit of the present invention.

[0020] Figure 7 for Figure 6 A magnified view of a portion of point A in the middle.

[0021] Figure 8 This is a schematic diagram of the linkage unit of the present invention.

[0022] Figure 9 for Figure 8 A magnified view of a portion of point B in the middle.

[0023] Figure 10 This is a schematic diagram of the structure of the supporting square plate of the present invention in a horizontal state.

[0024] Figure 11This is a schematic diagram of the structure of the assisted turning-over state of the present invention.

[0025] Attached reference numerals: 101-Frame; 102-Drive wheel; 103-Steering wheel; 104-Drive box; 105-Battery pack; 106-Foot pedal; 107-Adjustable carriage; 108-Supporting square plate one; 109-Supporting square plate two; 110-Supporting square plate three; 111-Handrail; 112-Push rod; 113-Protective shell; 114-Padded pad; 115-Adjustable side plate; 116-Sector-shaped rotating block; 117-Sector-shaped rack; 118-Adjustable motor; 119-Adjustable gear; 120-Extension 121-Double-head motor; 122-Expanding lead screw; 123-Height adjustment motor; 124-Adjustable side plate; 125-Splined shaft one; 126-Angle adjustment motor one; 127-Adjustable motor; 128-Angle adjustment motor two; 129-Linkage square plate; 130-Splined shaft two; 131-Adjustable lead screw; 132-Linkage gear one; 133-Transmission gear one; 134-Transmission gear two; 135-Linkage gear two; 136-Linkage gear three; 137-Transmission gear three. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] Example: Reference Figures 1-11 A multifunctional bedridden care transfer device includes a frame 101. The frame 101 is equipped with two drive wheels 102, two steering wheels 103, and two foot pedals 106. The two drive wheels 102 are symmetrically and rotatably mounted on the frame 101, and the two steering wheels 103 are symmetrically and rotatably mounted on the frame 101. A drive box 104 and a battery pack 105 are disposed between the two drive wheels 102 and the two steering wheels 103. Both the drive box 104 and the battery pack 105 are fixedly mounted on the frame 101. The battery pack 105 provides power to the entire device. The drive wheels 102, steering wheels 103, and drive box 104 enable the device to move and turn. The two foot pedals 106 are symmetrically and fixedly mounted on the frame 101.

[0028] A symmetrically slidable unfolding carriage 120 is mounted on the frame 101, and an unfolding lead screw 122 is symmetrically rotatably mounted on the frame 101. The unfolding lead screw 122 and the corresponding unfolding carriage 120 form a helical pair. A dual-head motor 121 is fixedly mounted on the frame 101. The output shafts at both ends of the dual-head motor 121 are fixedly connected to the corresponding unfolding lead screw 122. When the dual-head motor 121 is started, the two unfolding lead screws 122 rotate synchronously. Under the action of the unfolding lead screw 122, the two unfolding carriages 120 move toward each other or move away from each other.

[0029] Each unfolding slide 120 is slidably mounted with a positioning slide 107, and each unfolding slide 120 is also fixedly mounted with a height adjustment motor 123. The piston rod end of the height adjustment motor 123 is fixedly connected to the positioning slide 107. When the height adjustment motor 123 is started, the positioning slide 107 can move up and down relative to the unfolding slide 120.

[0030] Each adjusting slide 107 is fixedly equipped with a handrail 111 and a push rod 112. The handrail 111 is located on the side of the corresponding support square plate 110, and the push rod 112 is located at the upper end of the adjusting slide 107.

[0031] The adjusting slide 107 is equipped with a support unit, which includes an adjusting side plate 115. Supporting square plates 108, 109, and 110 are movably mounted on the adjusting side plate 115. When the supporting square plates 108, 109, and 110 are in a horizontal state, they form an auxiliary turning straight plate. At this time, the upper surfaces of the supporting square plates 108, 109, and 110 are all on the same plane. Soft pads 114 are fixedly installed on the supporting square plates 108, 109, and 110.

[0032] A linkage plate 129 is provided between the support plate 3 110 and the adjustment side plate 115. The linkage plate 129 is slidably installed on the corresponding adjustment side plate 115, and the support plate 3 110 is fixedly installed on the corresponding linkage plate 129. When the two support plates 3 110 are in the closest position, a seat plate is formed between the two support plates 3 110.

[0033] A splined shaft 130 and a linkage gear 136 are provided between the support square plate 108 and the adjustment side plate 115. A splined shaft 125 and a linkage gear 132 are provided between the support square plate 109 and the adjustment side plate 115. Both the linkage gear 132 and the linkage gear 136 are rotatably mounted on the adjustment side plate 115. The support square plate 109 is fixedly mounted on the end of the corresponding splined shaft 125, and the support square plate 108 is fixedly mounted on the end of the corresponding splined shaft 130. The splined shaft 125 and the corresponding linkage gear 132 form a spline sliding fit, and the splined shaft 130 and the corresponding linkage gear 136 form a spline sliding fit.

[0034] A protective shell 113 is also fixedly installed on the adjustment side plate 115. Angle adjustment motor 126 and angle adjustment motor 2 128 are fixedly installed inside the protective shell 113. A transmission gear 133 is fixedly installed on the output shaft of angle adjustment motor 126. The transmission gear 133 and the linkage gear 132 mesh to form a gear pair. A transmission gear 3 137 is fixedly installed on the output shaft of angle adjustment motor 2 128. The transmission gear 3 137 and the linkage gear 3 136 mesh to form a gear pair.

[0035] The protective shell 113 is used to protect the components between the protective shell 113 and the adjusting side plate 115. The adjusting side plate 124, spline shaft 125, angle adjusting motor 126, adjusting motor 127, angle adjusting motor 128, linkage square plate 129, spline shaft 130, adjusting screw 131, linkage gear 132, transmission gear 133, transmission gear 134, linkage gear 135, linkage gear 136, and transmission gear 137 corresponding to the adjusting side plate 115 are all located inside the protective shell 113.

[0036] The start-up angle adjustment motor 126 drives the transmission gear 133 to rotate. Under the action of the linkage gear 132, the spline shaft 125 rotates synchronously, causing the second support plate 109 to rotate relative to the adjustment side plate 115, that is, adjusting the angle of the second support plate 109 relative to the third support plate 110. When the two second support plates 109 are in the closest position, a seat back panel is formed between the two second support plates 109.

[0037] The start-up angle adjustment motor 2 128 drives the transmission gear 3 137 to rotate. Under the action of the linkage gear 3 136, the spline shaft 2 130 rotates synchronously, causing the support square plate 108 to rotate relative to the adjustment side plate 115, that is, adjusting the angle of the support square plate 108 relative to the support square plate 3 110. When the two support square plates 108 are in the closest position, a seat leg support plate is formed between the two support square plates 108.

[0038] A linkage unit is provided between the spline shaft 125, the linkage square plate 129, and the spline shaft 130 on the same adjustment side plate 115. The linkage unit includes an adjustment side plate 124 set inside the protective shell 113. The adjustment side plate 124 and the corresponding linkage square plate 129 are fixedly connected. The spline shaft 125 and the spline shaft 130 are rotatably connected to the corresponding adjustment side plate 124. An adjustment screw 131 is also rotatably installed on the adjustment side plate 115. The adjustment screw 131 and the adjustment side plate 124 form a screw pair. An adjustment motor 127 is also fixedly installed inside the protective shell 113. A transmission gear 134 is fixedly installed on the output shaft of the adjustment motor 127. A linkage gear 135 is fixedly installed on the adjustment screw 131. The transmission gear 134 and the linkage gear 135 mesh to form a gear pair.

[0039] In the initial position, the two unfolding slides 120 are in the closest position to each other, and the two adjustable side plates 124 are in the closest position to each other. At this time, the two foot pedals 106, the two support square plates 108, the two support square plates 2 109, and the two support square plates 3 110 are combined to form a wheelchair seat.

[0040] When the two unfolding carriages 120 are at their furthest positions, the pitch adjustment motor 127 is activated to drive the transmission gear 134 to rotate. Under the action of the linkage gear 135, the pitch adjustment screw 131 rotates, causing the pitch adjustment side plate 124 to move closer to the position adjustment side plate 115. The spline shaft 125, linkage square plate 129, and spline shaft 130 on the pitch adjustment side plate 124 move synchronously. The linkage square plate 129 slides relative to the position adjustment side plate 115, the spline shaft 125 slides relative to the linkage gear 132, and the spline shaft 130 slides relative to the linkage gear 136. This causes the support square plate 108, support square plate 109, and support square plate 110 to move synchronously. When the support square plate 108, support square plate 109, and support square plate 110 are all in a horizontal state, the auxiliary turning plate moves relative to the position adjustment side plate 115.

[0041] The adjusting slide 107 is equipped with an adjusting unit, which includes a sector-shaped rotating block 116 rotatably mounted on the adjusting slide 107. Adjusting side plates 115 are respectively fixedly mounted on the corresponding sector-shaped rotating blocks 116. The adjusting unit is used to adjust the position of the auxiliary turning board to assist the patient in turning over independently. The adjusting slide 107 is also fixedly mounted with an adjusting motor 118. An adjusting gear 119 is fixedly mounted on the output shaft of the adjusting motor 118. A sector-shaped rack 117 is fixedly mounted on each of the sector-shaped rotating blocks 116. The sector-shaped rack 117 and the corresponding sector-shaped rack 117 mesh to form a gear pair.

[0042] In the initial position, the fan-shaped rotating blocks 116 are all in a vertical state, while the supporting square plate 110 is in a horizontal state. At this time, the device assembly forms a wheelchair.

[0043] When the patient is lying on the hospital bed, first activate angle adjustment motor 126 and angle adjustment motor 228 to make support plate 108 and support plate 209 both horizontal. Then activate double-head motor 121 to move the two unfolding slides 120 to the farthest position. At this time, the distance between the two support plates 108, the distance between the two support plates 209, and the distance between the two support plates 310 are greater than the width of the hospital bed. Then move the device from the rear of the hospital bed to the middle position of the hospital bed. At this time, the frame 101 is located under the hospital bed, and support plates 108, 209, and 310 are located on both sides of the hospital bed.

[0044] It is worth noting that the patient's bed is a matching bed for this device. The support legs of the bed can be folded up, and the bed will not move under the action of the other support legs when the support legs are folded up, so that the frame 101 can move under the bed to make way.

[0045] At this time, the auxiliary turning straight plates formed by the supporting square plate 108, supporting square plate 2 109, and supporting square plate 3 110 are located on both sides of the hospital bed. The adjustment motor 118 is started to drive the adjustment gear 119 to rotate. Under the action of the sector rack 117, the sector rotating block 116 rotates relative to the corresponding adjustment slide 107. The adjustment side plate 115 on the adjustment slide 107 rotates synchronously, and the components on the adjustment side plate 115 rotate synchronously. That is, the auxiliary turning straight plate rotates relative to the adjustment slide 107, so that the auxiliary turning straight plate is in an inclined state. The height adjustment motor 123 is started to adjust the position of the adjustment slide 107 relative to the unfolding slide 120, so that the lower edge of the auxiliary turning straight plate is located on the edge of the hospital bed. At this time, the two auxiliary turning straight plates are in an inclined state, thereby protecting the patient on the hospital bed and preventing the patient from falling off the hospital bed.

[0046] Working principle: When assisted turning of the patient is required, angle adjustment motor 126 and angle adjustment motor 2 128 are activated to make the two assisted turning plates horizontal. Then, the distance adjustment motor 127 is activated to move the distance adjustment side plate 124 towards the position adjustment side plate 115, so that the assisted turning plate corresponding to the distance adjustment side plate 124 moves under the patient. With the cooperation of the patient or the assistance of family members, the patient is slowly moved to the top of the two assisted turning plates. Then, by activating the position adjustment motor 118, the corresponding assisted turning plate is rotated, and the patient is turned over with the cooperation of the other assisted turning plate.

[0047] When it is necessary to transfer the patient from the bed, repeat the above steps. With the patient's cooperation or the assistance of family members, the patient is moved above the two auxiliary turning boards. Then, the height adjustment motor 123 is activated to make the two adjustment slides 107 move upward synchronously, so that the two auxiliary turning boards move upward synchronously. Then, the device is moved off the bed by the drive box 104, that is, the patient is moved to the rear of the bed. Then, the angle adjustment motor 126 and the angle adjustment motor 228 are activated to drive the support plate 108 and the support plate 2109 to rotate, so that the patient is in the seat formed by the support plate 108, the support plate 2109 and the support plate 310.

[0048] refer to Figure 1 , Figure 2 By moving the two unfolding carriages 120 to their closest positions, and the adjusting side plate 124 to its closest position, and by adjusting the angle adjusting motors 126 and 128 to raise the support square plate 108 and support square plate 109, together with the support square plate 110, they form the leg support, backrest, and seat of the seat, thus forming a wheelchair mode. At this time, the patient can sit on the seat made of cushion 114, moving via the drive wheels 102 and steering wheels 103, with the armrests 111 and footrests 106 providing support.

[0049] refer to Figure 10 , Figure 11 The device is pushed under the matching hospital bed, moving the unfolding slide 120 to its furthest position. First, the position and height of the auxiliary turning board are adjusted by the adjustment unit and the height adjustment motor 123, so that its lower edge is flush with the edge of the bed, acting as a fall prevention guardrail. When it is necessary to turn or move the patient, the distance adjustment motor 127 is activated to extend the auxiliary turning board horizontally under the patient, and then the adjustment motor 118 drives it to tilt synchronously or asynchronously, so that lateral turning can be completed with minimal cooperation from the patient. When moving the patient, after the auxiliary turning board supports the patient, the adjustment slide 107 is raised, and the patient can be safely transferred off the bed.

[0050] Through the coordinated control of the support unit, linkage unit, adjustment unit, unfolding slide 120 and height adjustment motor 123, the device can flexibly switch between wheelchair mode, turning assistance mode and transfer mode. Through the above design, this device integrates one device to complete three core nursing actions: position change (turning over), lateral transfer (transfer between bed and wheelchair), and longitudinal movement (as a wheelchair), thereby greatly improving nursing efficiency and equipment utilization.

[0051] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.

Claims

1. A multifunctional bedridden care transfer device, comprising a frame (101), wherein the frame (101) is provided with two drive wheels (102), two steering wheels (103), and two foot pedals (106), characterized in that: The frame (101) is symmetrically and slidably mounted with unfolding slides (120), and each unfolding slide (120) is slidably mounted with a positioning slide (107). The positioning slide (107) is provided with a support unit and a positioning unit. The support unit includes a positioning side plate (115). Each positioning side plate (115) is movably provided with a support square plate one (108), a support square plate two (109), and a support square plate three (110). When the support square plate one (108), support square plate two (109), and support square plate three (110) are in a horizontal state, they form an auxiliary turning straight plate. A spline shaft two (130) and a linkage gear are provided between the support square plate one (108) and the positioning side plate (115). A spline shaft (125) and a linkage gear (132) are provided between the third wheel (136), the second support plate (109), and the adjustment side plate (115). A linkage plate (129) is provided between the third support plate (110) and the adjustment side plate (115). A linkage unit is provided between the spline shaft (125), the linkage plate (129), and the second spline shaft (130) on the same adjustment side plate (115). The adjustment unit includes a fan-shaped rotating block (116) rotatably mounted on the adjustment slide (107). The adjustment side plate (115) is fixedly mounted on the corresponding fan-shaped rotating block (116). The adjustment unit is used to adjust the position of the auxiliary turning board to assist the patient in turning over independently.

2. The multifunctional bedridden care transfer device according to claim 1, characterized in that: Two drive wheels (102) are symmetrically rotated and mounted on the frame (101), and two steering wheels (103) are symmetrically rotated and mounted on the frame (101). A drive box (104) and a battery pack (105) are provided between the two drive wheels (102) and the two steering wheels (103). Both the drive box (104) and the battery pack (105) are fixedly mounted on the frame (101), and two foot pedals (106) are symmetrically fixedly mounted on the frame (101).

3. The multifunctional bedridden care transfer device according to claim 1, characterized in that: The linkage plate (129) is slidably installed on the corresponding adjustment side plate (115), and the support plate three (110) is fixedly installed on the corresponding linkage plate (129).

4. The multifunctional bedridden care transfer device according to claim 3, characterized in that: The first linkage gear (132) and the third linkage gear (136) are both rotatably mounted on the adjustment side plate (115). The second support plate (109) is fixedly mounted on the end of the corresponding spline shaft (125). The first support plate (108) is fixedly mounted on the end of the corresponding spline shaft (130). The first spline shaft (125) and the corresponding first linkage gear (132) form a spline sliding fit. The second spline shaft (130) and the corresponding third linkage gear (136) form a spline sliding fit.

5. A multifunctional bedridden care transfer device according to claim 4, characterized in that: A protective shell (113) is also fixedly installed on the adjustment side plate (115). Angle adjustment motor one (126) and angle adjustment motor two (128) are fixedly installed inside the protective shell (113). A transmission gear one (133) is fixedly installed on the output shaft of angle adjustment motor one (126). The transmission gear one (133) and the linkage gear one (132) mesh to form a gear pair. A transmission gear three (137) is fixedly installed on the output shaft of angle adjustment motor two (128). The transmission gear three (137) and the linkage gear three (136) mesh to form a gear pair.

6. A multifunctional bedridden care transfer device according to claim 5, characterized in that: The linkage unit includes an adjustable side plate (124) disposed inside the protective shell (113). The adjustable side plate (124) and the corresponding linkage square plate (129) are fixedly connected. Spline shaft one (125) and spline shaft two (130) are rotatably connected to the corresponding adjustable side plate (124). An adjustable screw (131) is also rotatably mounted on the adjustable side plate (115). The adjustable screw (131) and the adjustable side plate (124) form a screw pair. An adjustable motor (127) is also fixedly installed inside the protective shell (113). A transmission gear two (134) is fixedly mounted on the output shaft of the adjustable motor (127). A linkage gear two (135) is fixedly mounted on the adjustable screw (131). The transmission gear two (134) and the linkage gear two (135) mesh to form a gear pair.

7. A multifunctional bedridden care transfer device according to claim 1, characterized in that: The frame (101) is symmetrically and rotatably mounted with unfolding screws (122). The unfolding screws (122) and the corresponding unfolding slides (120) form a helical pair. The unfolding slides (120) are also fixedly mounted with height adjustment motors (123). The piston rod end of the height adjustment motor (123) is fixedly connected to the adjustment slides (107). The adjustment slides (107) are also fixedly mounted with adjustment motors (118). The output shaft of the adjustment motors (118) is fixedly mounted with adjustment gears (119). The sector-shaped rotating blocks (116) are all fixedly mounted with sector-shaped racks (117). The sector-shaped racks (117) and the corresponding sector-shaped racks (117) mesh to form a gear pair.

8. A multifunctional bedridden care transfer device according to claim 7, characterized in that: When the first support plate (108), the second support plate (109), and the third support plate (110) are all in a horizontal state, the upper surfaces of the first support plate (108), the second support plate (109), and the third support plate (110) are all on the same plane, and soft pads (114) are fixedly installed on the first support plate (108), the second support plate (109), and the third support plate (110).

9. A multifunctional bedridden care transfer device according to claim 1, characterized in that: Each of the adjustment slides (107) is fixedly equipped with a handrail (111) and a push rod (112). The handrail (111) is located on the side of the corresponding support square plate three (110), and the push rod (112) is located at the upper end of the adjustment slide (107).

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