Foldable nursing support structure of medical nursing bed

Abstract

The invention relates to the technical field of medical nursing beds, in particular to a foldable nursing support structure of a medical nursing bed, which comprises a bed body, a bed plate arranged on the bed body, a support capable of horizontally moving arranged on the bed body, a first support plate fixed on the support, and a second support plate hinged on the first support plate and used for supporting thighs of a patient. A third supporting plate for supporting the shanks of the patient is hinged to the second supporting plate; a driving mechanism is arranged on the bed body, and the support is driven by the driving mechanism to do horizontal reciprocating motion on the bed body; a clamping assembly for limiting the support during horizontal reciprocating motion is arranged on the bed body, the clamping assembly comprises a groove body fixed to the bed body and a [-shaped sliding plate clamped in the groove body in a sliding mode, and the support and the [-shaped sliding plate are fixed to each other; the nursing support can be folded and stored in the length direction and the height direction at the same time, and the space volume occupied by the nursing support can be reduced to the maximum extent.

Description

Technical Field

[0001] The present invention relates to the technical field of medical nursing beds, and specifically to a retractable nursing support structure for a medical nursing bed. Background Art

[0002] In the field of medical care, the design of the nursing support for a nursing bed is directly related to the comfort of patients, the operational convenience of medical staff, and treatment safety. With the development of medical care technology, the importance of lower limb elevation nursing in fields such as postoperative rehabilitation, treatment of venous return disorders, and prevention of pressure ulcers has become increasingly prominent. By using a nursing support to elevate the lower limbs of patients, it can promote the venous blood return of the lower limbs to prevent lower limb varicose veins that are prone to occur in patients after long-term bed rest. However, with the diversification of medical needs, the following technical defects of the existing nursing support structures have gradually emerged and urgently need to be optimized through innovative design.

[0003] Most of the existing supports adopt a fixed or partially foldable design, such as a single foldable design for the length or height of the bed body. When stored, they still occupy a large space, which is not conducive to optimizing the ward environment. Most supports are fixed or require external components, such as U-shaped or S-shaped elevation pads, which occupy a large space and cannot be quickly retracted and extended. Although some partially foldable designs can reduce the volume, their stability is poor after being unfolded. For example, the lower limb nursing support with a hinged plate and spring locking structure used in some products is prone to shaking during use.

[0004] Therefore, there is an urgent need for a retractable and automatically adjustable nursing support structure to improve the load-bearing safety and operation efficiency, while optimizing the storage space to meet the composite needs of modern medical scenarios. Summary of the Invention

[0005] The purpose of the present invention is to provide a retractable nursing support structure for a medical nursing bed to solve the problems raised in the above background art that most of the existing nursing supports are fixed or require external components, occupy a large space and cannot be quickly retracted and extended, and although some partially foldable designs can reduce the volume, their stability is poor after being unfolded. The present invention can improve the load-bearing safety and operation efficiency of the nursing support, while optimizing the storage space to meet the composite needs of modern medical scenarios.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A retractable nursing support structure for a medical nursing bed, including a bed body, a bed board is placed on the bed body, a horizontally movable support is arranged on the bed body, a first support plate is fixed on the support, a second support plate for supporting the patient's thigh is hinged on the first support plate, and a third support plate for supporting the patient's calf is hinged on the second support plate; A driving mechanism is arranged on the bed body, and the driving mechanism is used to drive the support to move horizontally back and forth on the bed body; A clamping component for limiting the horizontal reciprocating movement of the bracket is provided on the bed body. The clamping component includes a groove body fixed on the bed body and a U-shaped slide plate slidably clamped inside the groove body. The bracket is fixed to the U-shaped slide plate. When the bracket moves horizontally back and forth, it will drive the U-shaped slide plate to slide horizontally back and forth in the groove body; The U-shaped slide plate and the third support plate are cooperated through a linkage structure. When the U-shaped slide plate moves horizontally back and forth in the groove body, it can drive the third support plate to lift and lower upward.

[0007] For the retractable nursing bracket structure of a medical nursing bed as described above: The upper surfaces of the bed board, the first support plate, the second support plate, and the third support plate are respectively fixedly adhered with a soft rubber material.

[0008] For the retractable nursing bracket structure of a medical nursing bed as described above: The driving mechanism includes a rotating shaft rotatably provided on the bed body. Swing arms are respectively fixed at both ends of the rotating shaft. A slide rail is fixed on the bed body. A slider is slidably clamped on the slide rail. A connecting rod is provided between the slider and the swing arm. Both ends of the connecting rod are hinged to the swing arm and the slider respectively. The slider is fixed to the bracket.

[0009] For the retractable nursing bracket structure of a medical nursing bed as described above: A motor is fixed on the bed body. A driving gear is installed on the output shaft of the motor. A driven gear is fixed on the rotating shaft. The driving gear meshes with the driven gear.

[0010] For the retractable nursing bracket structure of a medical nursing bed as described above: The linkage structure includes a lead screw, a first rotating rod, and a second rotating rod rotatably provided on the bracket. A fixed rod is fixed at the bottom of the third support plate. A T-shaped frame is provided between the fixed rod and the first rotating rod. Both ends of the T-shaped frame are hinged to the fixed rod and the first rotating rod respectively. A threaded sleeve is threadedly connected to the lead screw. An articulated rod is provided between the threaded sleeve and the T-shaped frame. Both ends of the articulated rod are hinged to the T-shaped frame and the threaded sleeve respectively. A rectangular through groove is opened on one side of the groove body. The first rotating rod, the second rotating rod, and the convex rods fixed on both sides of the first support plate are respectively clamped inside the rectangular through groove and are rotatably connected to the U-shaped slide plate; The second rotating rod and the groove body, the U-shaped slide plate are cooperated through a first transmission mechanism. When the U-shaped slide plate slides in the groove body, it will drive the second rotating rod to rotate itself; The second rotating rod and the lead screw are cooperated through a second transmission mechanism. When the second rotating rod rotates, it will drive the lead screw to rotate.

[0011] For the retractable nursing bracket structure of a medical nursing bed as described above: The first transmission mechanism includes a rack plate fixed on the inner top wall of the groove body and a gear fixed at the end of the second rotating rod and rotatably installed on the U-shaped slide plate. The gear meshes with the rack plate.

[0012] The retractable nursing support structure of a medical nursing bed as described above: The second transmission mechanism includes a bevel gear ring fixed on the second rotating rod and a bevel gear fixed on the lead screw, and the bevel gear ring meshes with the bevel gear.

[0013] The retractable nursing support structure of a medical nursing bed as described above: Guardrails are respectively and fixedly installed on both sides of the bed body.

[0014] The retractable nursing support structure of a medical nursing bed as described above: The slide rail adopts an I-shaped slide rail, the slider adopts an I-shaped slider, and the outer dimension of the slide rail is adapted to the inner dimension of the slider.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: When in use, a horizontally movable support is provided on the bed body, a first support plate is fixed on the support, a second support plate for supporting the patient's thighs and a third support plate for supporting the calves are hinged on the first support plate; a driving mechanism is provided on the bed body to drive the support to reciprocate horizontally on the bed body; a clamping component for limiting the support when it reciprocates horizontally is provided on the bed body, and the clamping component includes a groove body fixed on the bed body and a U-shaped sliding plate slidably clamped inside the groove body. When the support reciprocates horizontally, it will drive the U-shaped sliding plate to slide horizontally back and forth in the groove body; the U-shaped sliding plate and the third support plate are matched through a linkage structure, and when the U-shaped sliding plate moves horizontally back and forth in the groove body, it can drive the third support plate to lift and lower upward.

[0016] Therefore, in the present invention, while the driving mechanism can drive the support to move horizontally, it can drive the third support plate to lift upward. By lifting the third support plate, the lower limbs of the patient can be elevated to prevent lower limb edema and varicose veins of bedridden patients. At the same time, when the nursing support is stored, the nursing support can be folded and stored in both the length direction and the height direction, which can minimize the space volume occupied by the nursing support. The present invention has the functions of adjusting the length and lifting the height of the nursing support, and can achieve the purpose of quickly retracting and expanding the nursing support and reducing the occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first perspective structural schematic diagram of a retractable nursing support structure of a medical nursing bed.

[0018] Figure 2 It is a second perspective structural schematic diagram of a retractable nursing support structure of a medical nursing bed.

[0019] Figure 3 It is a structural schematic diagram after the bed board of a retractable nursing support structure of a medical nursing bed is removed.

[0020] Figure 4 The partial structural schematic diagram of the deployable nursing support structure of a medical nursing bed Figure 3 after decomposition.

[0021] Figure 5 The partial structural schematic diagram of the deployable nursing support structure of a medical nursing bed Figure 4 after decomposition.

[0022] Figure 6 The partial structural schematic diagram of the deployable nursing support structure of a medical nursing bed Figure 1 after decomposition.

[0023] Figure 7 The partial structural schematic diagram of the deployable nursing support structure of a medical nursing bed Figure 3 after decomposition.

[0024] Figure 8 The partial structural schematic diagram of the deployable nursing support structure of a medical nursing bed Figure 7 after decomposition.

[0025] Figure 9 The partial structural schematic diagram of the deployable nursing support structure of a medical nursing bed Figure 8 of the local structure.

[0026] Figure 10 The schematic diagram of the cooperation structure of the groove body and the second rotating rod of the deployable nursing support structure of a medical nursing bed.

[0027] In the figure: 1. Bed body; 2. Bed board; 3. First support plate; 4. Rotating shaft; 5. Motor; 6. Driving gear; 7. Driven gear; 8. Swing arm; 9. Connecting rod; 10. Slide rail; 11. Slide block; 12. Second support plate; 13. Third support plate; 14. Support; 15. Groove body; 16. C-shaped slide plate; 17. Rectangular through groove; 18. Lead screw; 19. First rotating rod; 20. Second rotating rod; 21. Rack plate; 22. Gear; 23. Bevel gear ring; 24. Bevel gear; 25. Threaded sleeve; 26. Fixed rod; 27. T-shaped frame; 28. Hinge rod; 29. Guardrail; 30. Convex rod. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Please refer to Figures 1 to 10, as an embodiment of the present invention, a retractable nursing support structure for a medical nursing bed includes a bed body 1, a bed board 2 is placed on the bed body 1, a horizontally movable support 14 is provided on the bed body 1, a first support plate 3 is fixed on the support 14, and a second support plate 12 for supporting the patient's thighs is hinged on the first support plate 3. A third support plate 13 for supporting the patient's calves is hinged on the second support plate 12; A driving mechanism is provided on the bed body 1 to drive the support 14 to reciprocate horizontally on the bed body 1; A clamping component for limiting the support 14 when it reciprocates horizontally is provided on the bed body 1. The clamping component includes a groove body 15 fixed on the bed body 1 and a U-shaped sliding plate 16 slidably clamped inside the groove body 15. The support 14 and the U-shaped sliding plate 16 are fixed to each other. When the support 14 reciprocates horizontally, it will drive the U-shaped sliding plate 16 to slide horizontally back and forth in the groove body 15; The U-shaped sliding plate 16 and the third support plate 13 are cooperated through a linkage structure. When the U-shaped sliding plate 16 reciprocates horizontally in the groove body 15, it can drive the third support plate 13 to lift and lower upward.

[0030] In this embodiment, during use, the patient lies on the bed board 2, and the legs are placed on the second support plate 12 and the third support plate 13. A horizontally movable support 14 is provided on the bed body 1. The third support plate 13 and the second support plate 12 are respectively arranged on the support 14. The second support plate 12 is used to support the patient's thighs, and the third support plate 13 is used to support the patient's calves; a driving mechanism is provided on the bed body 1 to drive the support 14 to reciprocate horizontally on the bed body 1; a clamping component for limiting the support 14 when it reciprocates horizontally is provided on the bed body 1. The clamping component includes a groove body 15 fixed on the bed body 1 and a U-shaped sliding plate 16 slidably clamped inside the groove body 15. When the support 14 reciprocates horizontally, it will drive the U-shaped sliding plate 16 to slide horizontally back and forth in the groove body 15; the U-shaped sliding plate 16 and the third support plate 13 are cooperated through a linkage structure. When the U-shaped sliding plate 16 reciprocates horizontally in the groove body 15, it can drive the third support plate 13 to lift and lower upward.

[0031] While driving the support 14 to move horizontally through the driving mechanism, the length of the nursing support is extended, and at the same time, the third support plate 13 can be driven to lift upward. By lifting the third support plate 13, the lower limbs of the patient can be elevated to prevent lower limb edema and varicose veins of bedridden patients. At the same time, when the nursing support is stored, it can be folded and stored in both the length direction and the height direction, which can minimize the space volume occupied by the nursing support. The present invention has the functions of length adjustment and height lifting, and can achieve the purpose of rapid retraction and expansion and reducing the occupied space.

[0032] As a further solution of the present invention, soft rubber materials are fixedly adhered to the upper surfaces of the bed board 2, the first support plate 3, the second support plate 12, and the third support plate 13 respectively.

[0033] In this embodiment, by fixedly adhering soft rubber materials to the upper surfaces of the bed board 2, the first support plate 3, the second support plate 12, and the third support plate 13 respectively, the bed board 2, the first support plate 3, the second support plate 12, and the third support plate 13 support the patient's limbs. The soft rubber material is soft and elastic, which can reduce the discomfort when the patient lies down and places the limbs.

[0034] As a further solution of the present invention, the driving mechanism includes a rotating shaft 4 rotatably arranged on the bed body 1. Swing arms 8 are respectively fixed at both ends of the rotating shaft 4. A slide rail 10 is fixed on the bed body 1. A slider 11 is slidably clamped on the slide rail 10. A connecting rod 9 is arranged between the slider 11 and the swing arm 8. Both ends of the connecting rod 9 are respectively hinged to the swing arm 8 and the slider 11. The slider 11 is fixed to the bracket 14.

[0035] In this embodiment, when the rotating shaft 4 rotates, the swing arms 8 at both ends can be driven to rotate simultaneously. The rotation of the swing arm 8 drives the connecting rod 9 to swing, so as to drive the slider 11 to move horizontally back and forth on the slide rail 10. Since the slider 11 is fixed to the bracket 14, the bracket 14 is driven to move horizontally back and forth.

[0036] As a further solution of the present invention, a motor 5 is fixed on the bed body 1. A driving gear 6 is installed on the output shaft of the motor 5. A driven gear 7 is fixed on the rotating shaft 4. The driving gear 6 meshes with the driven gear 7.

[0037] In this embodiment, the motor 5 is electrically connected to an external power supply through a wire. Starting the motor 5 can drive the driving gear 6 to rotate. By using the meshing of the driving gear 6 and the driven gear 7, the driven gear 7 is driven to rotate. Since the driven gear 7 is fixed to the rotating shaft 4, the rotating shaft 4 can be driven to rotate.

[0038] As a further solution of the present invention, the linkage structure includes a lead screw 18, a first rotating rod 19, and a second rotating rod 20 rotatably arranged on the bracket 14. A fixing rod 26 is fixed to the bottom of the third support plate 13. A T-shaped frame 27 is arranged between the fixing rod 26 and the first rotating rod 19. Both ends of the T-shaped frame 27 are respectively hinged to the fixing rod 26 and the first rotating rod 19. A threaded sleeve 25 is threadedly connected to the lead screw 18. An articulated rod 28 is arranged between the threaded sleeve 25 and the T-shaped frame 27. Both ends of the articulated rod 28 are respectively hinged to the T-shaped frame 27 and the threaded sleeve 25. A rectangular through groove 17 is opened on one side of the groove body 15. The first rotating rod 19, the second rotating rod 20, and the convex rods 30 fixed on both sides of the first support plate 3 are respectively clamped inside the rectangular through groove 17 and are rotatably connected to the U-shaped sliding plate 16; The second rotating rod 20 is cooperated with the groove body 15 and the C-shaped slide plate 16 through a first transmission mechanism. When the C-shaped slide plate 16 slides in the groove body 15, it will drive the second rotating rod 20 to rotate; The second rotating rod 20 is cooperated with the lead screw 18 through a second transmission mechanism. When the second rotating rod 20 rotates, it will drive the lead screw 18 to rotate.

[0039] In this embodiment, the second rotating rod 20 is cooperated with the groove body 15 and the C-shaped slide plate 16 through a first transmission mechanism. When the C-shaped slide plate 16 slides in the groove body 15, it will drive the second rotating rod 20 to rotate. The second rotating rod 20 is cooperated with the lead screw 18 through a second transmission mechanism. When the second rotating rod 20 rotates, it will drive the lead screw 18 to rotate. When the lead screw 18 rotates, the threaded sleeve 25 can be driven to move horizontally by the threaded cooperation between the threaded sleeve 25 and the lead screw 18, and then the articulated rod 28 can be driven to deflect to drive the T-shaped frame 27 to rotate. By using the rotation of the T-shaped frame 27, the third support plate 13 above the fixed rod 26 can be lifted. The third support plate 13 is articulated with the second support plate 12, and the second support plate 12 is articulated with the first support plate 3, so as to drive the second support plate 12 and the third support plate 13 to be lifted simultaneously. By lifting the second support plate 12 and the third support plate 13, the lower limbs of the patient can be lifted. Through the cooperation of the bracket 14, the groove body 15, the C-shaped slide plate 16, the lead screw 18, the articulated rod 28, the fixed rod 26, and the T-shaped frame 27, the third support plate 13 can be stably supported from the bottom, with high support stability and not easy to shake.

[0040] As a further scheme of the present invention, the first transmission mechanism includes a rack plate 21 fixed on the inner top wall of the groove body 15 and a gear 22 fixed at the end of the second rotating rod 20 and rotatably installed on the C-shaped slide plate 16. The gear 22 meshes with the rack plate 21.

[0041] In this embodiment, when the C-shaped slide plate 16 slides inside the groove body 15, it will drive the gear 22 to slide inside the groove body 15. Since the gear 22 meshes with the rack plate 21 and the rack plate 21 is fixed, the gear 22 will rotate while sliding. When the gear 22 rotates, it will drive the second rotating rod 20 to rotate.

[0042] As a further scheme of the present invention, the second transmission mechanism includes a bevel gear ring 23 fixed on the second rotating rod 20 and a bevel gear 24 fixed on the lead screw 18. The bevel gear ring 23 meshes with the bevel gear 24.

[0043] In this embodiment, when the second rotating rod 20 rotates, it will drive the bevel gear ring 23 to rotate. Since the bevel gear ring 23 meshes with the bevel gear 24, the bevel gear 24 will rotate, and then drive the lead screw 18 to rotate.

[0044] As a further scheme of the present invention, guardrails 29 are respectively and fixedly installed on both sides of the bed body 1.

[0045] In this embodiment, guardrails 29 are fixedly installed on both sides of the bed body 1 respectively. After the patient lies on the bed body 1, the guardrails 29 protect both sides of the patient's body to prevent the patient from falling off the bed body 1.

[0046] As a further solution of the present invention, the slide rail 10 adopts an I-shaped slide rail, and the slider 11 adopts an I-shaped slider. The external dimensions of the slide rail 10 are adapted to the internal dimensions of the slider 11.

[0047] In this embodiment, the slider 11 is movably clamped on the slide rail 10, and the slider 11 can slide horizontally on the slide rail 10 without falling off.

[0048] The working principle of the invention is as follows: When in use, the patient lies on the bed board 2, and the legs are placed on the second support plate 12 and the third support plate 13. A horizontally movable support 14 is arranged on the bed body 1. The third support plate 13 and the second support plate 12 are respectively arranged on the support 14. The second support plate 12 is used to support the patient's thighs, and the third support plate 13 is used to support the patient's calves; a driving mechanism is arranged on the bed body 1. Starting the motor 5 can drive the driving gear 6 to rotate. The driving gear 6 meshes with the driven gear 7 to drive the driven gear 7 to rotate. Since the driven gear 7 is fixed to the rotating shaft 4, the rotating shaft 4 can be driven to rotate. The rotation of the rotating shaft 4 can simultaneously drive the swing arms 8 at both ends to rotate. The rotation of the swing arms 8 drives the connecting rod 9 to swing, so as to drive the slider 11 to reciprocate horizontally on the slide rail 10. The slider 11 is fixed to the support 14, so as to drive the support 14 to reciprocate horizontally. When the support 14 reciprocates horizontally, it will drive the U-shaped slide plate 16 to reciprocate horizontally in the groove body 15; a linkage structure is provided between the U-shaped slide plate 16 and the third support plate 13. When the U-shaped slide plate 16 reciprocates horizontally in the groove body 15, it can drive the third support plate 13 to lift and lower upward.

[0049] The present invention drives the support 14 to move horizontally through the driving mechanism, while stretching the length of the nursing support and driving the third support plate 13 to lift upward. By lifting the third support plate 13, the lower limbs of the patient can be elevated to prevent lower limb edema and varicose veins of bedridden patients. At the same time, when the nursing support is stored, the nursing support can be folded and stored in both the length direction and the height direction.

[0050] The above embodiments are exemplary rather than restrictive. Therefore, without departing from the spirit or basic characteristics of the present invention, all technical solutions that can implement the present invention in other specific forms are included in the present invention.

Claims

1. A retractable nursing support structure of a medical nursing bed, comprising a bed body (1), a bed board (2) being placed on the bed body (1), characterized in that: A support (14) that can move horizontally is provided on the bed body (1). A first support plate (3) is fixed on the support (14). A second support plate (12) for supporting the patient's thigh is hinged on the first support plate (3). A third support plate (13) for supporting the patient's calf is hinged on the second support plate (12). A driving mechanism is provided on the bed body (1), and the driving mechanism is used to drive the support (14) to reciprocate horizontally on the bed body (1). A clamping component for limiting the horizontal reciprocating movement of the support (14) is provided on the bed body (1). The clamping component includes a groove body (15) fixed on the bed body (1) and a U-shaped slide plate (16) slidably clamped inside the groove body (15). The support (14) is fixed to the U-shaped slide plate (16). When the support (14) reciprocates horizontally, it will drive the U-shaped slide plate (16) to slide horizontally back and forth in the groove body (15). The U-shaped slide plate (16) is matched with the third support plate (13) through a linkage structure. When the U-shaped slide plate (16) reciprocates horizontally in the groove body (15), it can drive the third support plate (13) to lift and lower upward.

2. The retractable nursing support structure of a medical nursing bed according to claim 1, characterized in that: Soft glue materials are respectively fixedly adhered to the upper surfaces of the bed board (2), the first support plate (3), the second support plate (12), and the third support plate (13).

3. The retractable nursing support structure of a medical nursing bed according to claim 1, characterized in that: The driving mechanism includes a rotating shaft (4) rotatably provided on the bed body (1). Swing arms (8) are respectively fixed at both ends of the rotating shaft (4). A slide rail (10) is fixed on the bed body (1). A slider (11) is slidably clamped on the slide rail (10). A connecting rod (9) is provided between the slider (11) and the swing arm (8). Both ends of the connecting rod (9) are respectively hinged to the swing arm (8) and the slider (11). The slider (11) is fixed to the support (14).

4. The retractable nursing support structure of a medical nursing bed according to claim 3, characterized in that: A motor (5) is fixed on the bed body (1). A driving gear (6) is installed on the output shaft of the motor (5). A driven gear (7) is fixed on the rotating shaft (4). The driving gear (6) meshes with the driven gear (7).

5. The retractable nursing support structure of a medical nursing bed according to claim 1, characterized in that: The linkage structure includes a lead screw (18), a first rotating rod (19), and a second rotating rod (20) rotatably provided on the support (14). A fixed rod (26) is fixed to the bottom of the third support plate (13). A T-shaped frame (27) is provided between the fixed rod (26) and the first rotating rod (19). Both ends of the T-shaped frame (27) are respectively hinged to the fixed rod (26) and the first rotating rod (19). A threaded sleeve (25) is threadedly connected to the lead screw (18). An articulated rod (28) is provided between the threaded sleeve (25) and the T-shaped frame (27). Both ends of the articulated rod (28) are respectively hinged to the T-shaped frame (27) and the threaded sleeve (25). A rectangular through groove (17) is opened on one side of the groove body (15). The first rotating rod (19), the second rotating rod (20), and the convex rods (30) fixed on both sides of the first support plate (3) are respectively clamped inside the rectangular through groove (17) and are rotatably connected to the U-shaped slide plate (16). The second rotating rod (20) is cooperated with the groove body (15) and the C-shaped sliding plate (16) through a first transmission mechanism. When the C-shaped sliding plate (16) slides in the groove body (15), it will drive the second rotating rod (20) to rotate itself; The second rotating rod (20) is cooperated with the lead screw (18) through a second transmission mechanism. When the second rotating rod (20) rotates, it will drive the lead screw (18) to rotate.

6. The retractable nursing support structure of a medical nursing bed according to claim 5, characterized in that: The first transmission mechanism includes a rack plate (21) fixed on the inner top wall of the groove body (15) and a gear (22) fixed at the end of the second rotating rod (20) and rotatably installed on the C-shaped sliding plate (16). The gear (22) meshes with the rack plate (21).

7. The retractable nursing support structure of a medical nursing bed according to claim 5, characterized in that: The second transmission mechanism includes a bevel gear ring (23) fixed on the second rotating rod (20) and a bevel gear (24) fixed on the lead screw (18). The bevel gear ring (23) meshes with the bevel gear (24).

8. The retractable nursing support structure of a medical nursing bed according to claim 1, characterized in that: Guardrails (29) are respectively and fixedly installed on both sides of the bed body (1).

9. The retractable nursing support structure of a medical nursing bed according to claim 3, characterized in that: The slide rail (10) adopts an I-shaped slide rail, the slider (11) adopts an I-shaped slider, and the outer dimension of the slide rail (10) is adapted to the inner dimension of the slider (11).

Images