A hospital bed with a device for fixing the angles of abduction of both lower limbs

Abstract

The present invention discloses a hospital bed with a double lower limb abduction angle fixer, comprising a bed board, mounting mechanisms are installed on both sides of the bottom of the bed board, the bottom of the mounting mechanism is slidably connected with a main shaft, an adjusting tube is rotatably installed on the periphery of the main shaft, a limiting ring is slidably installed on the periphery of the main shaft, a convex block is installed around the top of the limiting ring, a groove matching the convex block is provided at the bottom of the main shaft, and a limiting nut is threadedly installed on the periphery of the main shaft at the bottom of the limiting ring. The present invention is designed with a telescopic mechanism, a bracket and a connecting seat. When in use, the length of the telescopic mechanism is changed to form a stable quadrilateral structure in cooperation with the bracket and the connecting seat, so as to adjust and limit the height and angle of the bracket, adjust the position of the connecting seat by rotating the adjusting tube, and limit the angle of rotation adjustment of the adjusting tube by using the limiting nut and the limiting ring, so as to make the device more stable and optimize the use process.

Description

Technical Field

[0001] The invention relates to the technical field of hospital beds, in particular to a hospital bed with a double lower limb abduction angle fixer. Background Art

[0002] As an indispensable part of medical facilities, hospital beds have been carrying the important mission of providing patients with a comfortable and safe treatment environment since their birth. The main function of traditional hospital beds is to provide support and rest. With the continuous development of medical technology, the design of hospital beds is also continuously innovating to meet various clinical needs, especially in the field of rehabilitation treatment. The functional demand for hospital beds is increasing. For patients with lower limb movement disorders caused by neurological diseases, fractures, joint diseases, etc., the use of bilateral lower limb abduction angle fixators is particularly important. This fixator can help patients maintain the correct posture during the rehabilitation process, prevent secondary injuries caused by incorrect posture, and promote rehabilitation effects.

[0003] Although traditional hospital beds can provide basic support and adjustment functions for patients, patients who need to fix both lower limbs at a specific angle must use an abduction board. However, the existing abduction boards are very flexible and cannot meet the requirements for fixing the abduction angle when used, and cannot take into account the problem of foot drop. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: although the traditional hospital bed can realize the basic support and adjustment functions for the patient, for patients who need to fix both lower limbs at a specific angle, an abduction board is required, and the existing abduction board is very flexible and cannot meet the requirements of fixing the abduction angle when used, and cannot take into account the problem of foot drop.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A hospital bed with a double lower limb abduction angle fixer comprises a bed board, mounting mechanisms are installed on both sides of the bottom of the bed board, a main shaft is slidably connected to the bottom of the mounting mechanism, an adjusting tube is rotatably installed on the periphery of the main shaft, a limiting ring is slidably installed on the periphery of the main shaft, a convex block is installed around the top of the limiting ring, a groove matching the convex block is opened at the bottom of the main shaft, and a limiting nut is threadedly installed on the periphery of the main shaft at the bottom of the limiting ring;

[0007] A connecting seat is installed on the side of the adjusting tube, and a plurality of telescopic mechanisms are installed on the side of the connecting seat, each of the telescopic mechanisms comprises a sleeve, an adjusting groove, a fastening nut and an L-shaped screw, one end of the sleeve is rotatably connected to the connecting seat, an L-shaped screw is slidably installed inside the sleeve, an adjusting groove is opened on the side of the sleeve, and a fastening nut is installed on the periphery of the L-shaped screw;

[0008] The other end of the L-shaped screw is sleeved with a connecting ring, a bracket is installed on the top of the connecting ring, a support plate is installed on the top of the bracket, a recovery groove is opened on the side of the bracket, and a limit block is installed inside the recovery groove through a spring, and limit grooves are opened inside the brackets at both ends of the recovery groove, and adjustment blocks are slidably installed inside the limit grooves, and a foot pedal is slidably installed between the adjustment blocks through a connecting shaft, and a gear plate is installed on the side of the connecting shaft extending to the inside of the adjustment block, and a gear groove and a movable groove matched with the gear plate are opened inside the adjustment block.

[0009] Preferably, slide grooves are provided on both sides of the main shaft, sliders adapted to the slide grooves are installed on both sides of the interior of the limiting ring, a pointer is installed at the other end of the limiting ring, and a scale corresponding to the pointer is provided on the periphery of the adjusting tube.

[0010] Preferably, a pull rod is installed at the bottom of the limit block, plugs are installed on both sides of the bottom of the pull rod, and holes matching the plugs are opened inside the bracket.

[0011] Preferably, a positioning block is installed on the top of the main shaft, and the mounting mechanism includes a gate-shaped mounting frame, a slide rail and a positioning groove. The gate-shaped mounting frame is installed on both sides of the bottom of the bed board, and a mounting seat is provided inside the gate-shaped mounting frame. Positioning grooves that are compatible with the positioning block are provided at the four corners of the mounting seat.

[0012] Preferably, the mounting mechanism further comprises a mounting seat and a mounting bolt, the mounting seat is mounted on the periphery of the door-shaped mounting frame, and the mounting seat is connected to the bed board via the mounting bolt.

[0013] Preferably, the gear groove is meshed with the gear plate, and the diameter of the movable groove is larger than the diameter of the gear plate.

[0014] Preferably, a handle is installed on the side of the gear plate away from the bed board, and a hole matching the handle is opened on the side of the adjustment block away from the bed board.

[0015] Preferably, the connecting seat is an L-shaped structure, and the vertical planes of each telescopic mechanism are staggered with each other.

[0016] Preferably, the telescopic mechanism further comprises an inner hole, the inner part of the sleeve is provided with an inner hole adapted to the L-shaped screw, and bed legs are installed at the four corners of the bottom of the bed board.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is equipped with a telescopic mechanism, a bracket and a connecting seat. When in use, the length of the telescopic mechanism is changed to form a stable quadrilateral structure in cooperation with the bracket and the connecting seat, so as to adjust and limit the height and angle of the bracket.

[0019] 2. The invention is provided with a limit ring and a limit nut. When in use, the protrusion on the top of the limit ring is clamped into the groove at the bottom of the adjusting tube. After clamping, the limit nut is assembled on the main shaft. The position of the limit ring is limited by the limit nut to prevent the protrusion from falling off the groove. The slide groove and the slider can prevent the limit ring from rotating around the main shaft, thereby realizing the limitation of the rotation adjustment angle of the adjusting tube.

[0020] 3. The present invention is equipped with a foot pedal. When in use, the handle is pulled to make the gear plate detach from the inside of the gear groove and enter the inside of the movable groove. After entering, the handle is turned clockwise to adjust the rotation of the foot pedal. After adjusting to the required angle, the handle is pushed to reinsert the gear plate into the gear groove. After insertion, the position of the foot pedal is limited. The flipped foot pedal can prevent foot drop in cooperation with the support plate, thereby improving the treatment effect.

[0021] 4. The present invention is equipped with a mounting mechanism, and when in use, the device is connected to the bed board through a mounting seat and a mounting bolt to achieve assembly. It has strong versatility, and the position of the bracket can be adjusted through the slide rails and slide grooves designed inside, in cooperation with the positioning blocks, thereby expanding the range of movement of the bracket, and the bracket can be stored under the bed board to reduce the space occupied by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A bottom view of an implementation example of the present invention;

[0023] Figure 2 It is a front view of an implementation case of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the installation mechanism and the telescopic mechanism of the embodiment of the present invention;

[0025] Figure 4 The expanded view of the bracket and the support plate of the embodiment of the present invention;

[0026] Figure 5 It is a partial cross-sectional view of the telescopic mechanism and the mounting mechanism of the embodiment of the present invention;

[0027] Figure 6 This is an expanded view of the regulating tube and the limiting ring of an implementation case of the present invention;

[0028] Figure 7 It is a schematic diagram of the top-sectional structure of the installation mechanism of the implementation case of the present invention;

[0029] Figure 8 It is a schematic diagram of the partial cross-sectional structure of the connecting shaft and the adjusting block according to an embodiment of the present invention.

[0030] In the figure: 1. bed board; 2. mounting mechanism; 201. door-shaped mounting frame; 202. mounting seat; 203. mounting bolt; 204. slide rail; 205. positioning groove; 3. telescopic mechanism; 301. sleeve; 302. inner hole; 303. adjustment groove; 304. fastening nut; 305. L-shaped screw; 4. connecting seat; 5. bracket; 6. support plate; 7. limiting groove; 8. recovery groove; 9. connecting ring; 10. spring; 11. limiting block; 12. pull rod; 13. bolt; 14. foot pedal; 15. adjusting block; 16. gear groove; 17. movable groove; 18. gear plate; 19. connecting shaft; 20. handle; 21. adjusting tube; 22. main shaft; 23. positioning block; 24. groove; 25. slide groove; 26. limiting ring; 27. bump; 28. slider; 29. ​​limiting nut. DETAILED DESCRIPTION

[0031] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0032] The present invention provides a bed with a double lower limb abduction angle fixator, exemplarily, as Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7As shown, it includes a bed board 1, a mounting mechanism 2 is installed on both sides of the bottom of the bed board 1, a main shaft 22 is slidably connected to the bottom of the mounting mechanism 2, a positioning block 23 is installed on the top of the main shaft 22, the mounting mechanism 2 includes a door-shaped mounting frame 201, a slide rail 204 and a positioning groove 205, the door-shaped mounting frame 201 is installed on both sides of the bottom of the bed board 1, a mounting seat 202 is opened inside the door-shaped mounting frame 201, and positioning grooves 205 adapted to the positioning block 23 are opened at the four corners of the mounting seat 202; The mounting mechanism 2 also includes a mounting seat 202 and a mounting bolt 203. The mounting seat 202 is installed on the periphery of the door-shaped mounting frame 201. The mounting seat 202 is connected to the bed board 1 through the mounting bolt 203. Bed legs are installed at the four corners of the bottom of the bed board 1. Among them, the door-shaped mounting frame 201 is provided with a through slot that meets the movement of the main shaft 22, and the through slot is connected to the slide rail 204. Specifically, when in use, the mounting seat 202 is connected to the bottom of the bed board 1 by using the mounting bolt 203, and the door is realized after the connection. The door-shaped mounting frame 201 is installed, and the positioning groove 205 is used to limit the position of the positioning block 23 to prevent the positioning block 23 from rotating and moving inside the door-shaped mounting frame 201. When adjustment is needed, the main shaft 22 is moved upward, and the main shaft 22 is used to move the positioning block 23 out of the positioning groove 205 and into the slide rail 204. After entering, the position of the main shaft 22 can be adjusted along the slide rail 204. After adjusting to the position corresponding to the positioning groove 205, the main shaft 22 is put down, and the positioning block 23 re-enters the positioning groove 205 to realize the position limitation of the main shaft 22. By adjusting the position of the positioning block 23 in the mounting mechanism 2, it is possible to adjust whether the telescopic mechanism 3 and the bracket 5 extend from the side of the bed board 1, so that the telescopic mechanism 3 and the bracket 5 can be extended from the side of the bed board 1, or the telescopic mechanism 3 and the bracket 5 can be stored under the bed board 1, so that the device is more flexible, and the bed board 1 is supported by the bed legs at the four corners of the bottom of the bed board 1;

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, an adjusting tube 21 is rotatably installed on the periphery of the main shaft 22, and a limiting ring 26 is slidably installed on the periphery of the main shaft 22. A protrusion 27 is installed around the top of the limiting ring 26, and a groove 24 adapted to the protrusion 27 is provided at the bottom of the main shaft 22. A limiting nut 29 is threadedly installed on the periphery of the main shaft 22 at the bottom of the limiting ring 26; sliding grooves 25 are provided on both sides of the main shaft 22, and sliding blocks 28 adapted to the sliding grooves 25 are installed on both sides of the inside of the limiting ring 26; wherein, an annular structure is installed on the periphery of the main shaft 22 at the top and bottom of the adjusting tube 21, which limits the position of the adjusting tube 21 on the main shaft 22 without affecting the rotation of the adjusting tube 21, and an external thread is provided on the periphery of the main shaft 22 below the annular structure, a pointer is installed on the other end of the limiting ring 26, and a scale corresponding to the pointer is provided on the periphery of the adjusting tube 21; specifically, when in use, the adjusting tube 21 is adjusted by rotating The tube 21 is used to adjust the position of the connecting seat 4. The adjusting rod 21 will simultaneously drive the scale to rotate and move during the rotation process. The user can judge the rotation angle of the adjusting rod 21 by reading the scale indicated by the pointer on the limit ring 26, so that the user can pre-set the device in advance when the patient is not in use. After adjusting the adjusting tube 21 to the specified angle, the limit ring 26 is mounted on the main shaft 22, so that the protrusion 27 on the top of the limit ring 26 is clamped into the groove 24 at the bottom of the adjusting tube 21. After clamping, the limit nut 29 is assembled on the main shaft 22, and the position of the limit ring 26 is limited by the limit nut 29 to prevent the protrusion 27 from falling off from the groove 24. The slide groove 25 and the slider 28 can prevent the limit ring 26 from rotating around the main shaft 22, thereby limiting the rotation adjustment angle of the adjusting tube 21.

[0034] like Figure 1 , Figure 3 and Figure 5As shown, a connecting seat 4 is installed on the side of the adjusting tube 21, and a plurality of telescopic mechanisms 3 are installed on the side of the connecting seat 4, wherein the connecting seat 4 is an L-shaped structure, and the vertical planes of each telescopic mechanism 3 are staggered with each other; each telescopic mechanism 3 includes a sleeve 301, an adjusting groove 303, a fastening nut 304 and an L-shaped screw 305, one end of the sleeve 301 is rotatably connected to the connecting seat 4, an L-shaped screw 305 is slidably installed inside the sleeve 301, an adjusting groove 303 is provided on the side of the sleeve 301, a fastening nut 304 is installed on the periphery of the L-shaped screw 305, and the telescopic mechanism 3 also includes an inner hole 302, and an inner hole 302 adapted to the L-shaped screw 305 is provided inside the sleeve 301; wherein the length of the telescopic mechanism 3 located above is less than the length of the telescopic mechanism 3 located below , the aperture of the inner hole 302 is larger than the diameter of the L-shaped screw 305; specifically, when in use, the bracket 5 is connected to the L-shaped screw 305 by the connecting ring 9, and the fastening nut 304 is loosened after the connection, and the bracket 5 is used to drive the telescopic mechanism 3 to adjust. During the adjustment process, the sleeve 301 rotates around the connecting seat 4, and the L-shaped screw 305 is adjusted according to the demand to extend the length of the sleeve 301. After the desired height, the fastening nut 304 is tightened to limit the length of the L-shaped screw 305, so that the bracket 5, the connecting seat 4 and the telescopic mechanism 3 form a stable quadrilateral structure, thereby realizing the adjustment and limitation of the height and angle of the bracket 5. During the telescopic adjustment process, the L-shaped screw 305 uses the inner hole 302 to provide a movable space for the L-shaped screw 305;

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the other end of the L-shaped screw 305 is sleeved with a connecting ring 9, a bracket 5 is installed on the top of the connecting ring 9, and a support plate 6 is installed on the top of the bracket 5, wherein a through hole adapted to the L-shaped screw 305 is opened inside the connecting ring 9, and the L-shaped screw 305 is inserted into the corresponding connecting ring 9 during installation, and the support plate 6 is used to support the user's foot; a recovery groove 8 is opened on the side of the bracket 5, and a limit block 11 is installed inside the recovery groove 8 through a spring 10, and a limit groove 7 is opened inside the bracket 5 at both ends of the recovery groove 8, and an adjustment block 15 is slidably installed inside the limit groove 7; a pull rod 12 is installed at the bottom of the limit block 11, and plugs 13 are installed on both sides of the bottom of the pull rod 12, and a hole adapted to the plug 13 is opened inside the bracket 5; wherein the plug 13 is inserted into the corresponding hole opened inside the bracket 5, and the support plate 6 ... A groove is provided between the brackets 5 at one end to satisfy the rotation of the footrest 14, and an arc-shaped groove that meets the characteristics of the human foot is opened on the support plate 6 to improve the fit and comfort performance between the support plate 6 and the user's foot; specifically, when in use, the limit block 11 is lifted up under the action of the spring 10, and after being lifted up, it cooperates with the plug 13 located in the hole to block the movement path of the adjustment block 15, thereby limiting the position of the adjustment block 15. When adjustment is required, the pull rod 12 is manually pulled, and the limit block 11 is driven by the pull rod 12 to move downward and enter the bottom of the recovery groove 8. After entering, the adjustment block 15 is moved to the inside of the limit groove 7 at the other end, and the other end of the footrest 14 extends from the inside of the bracket 5. The pull rod 12 is released, and the limit block 11 is reset again under the action of the spring 10, thereby limiting the position of the adjustment block 15 again;

[0036] like Figure 1 , Figure 2 , Figure 4 and Figure 8As shown, a foot pedal 14 is slidably installed between the adjustment blocks 15 through a connecting shaft 19, and a gear plate 18 is installed on the side of the adjustment block 15 extending from the connecting shaft 19. A gear groove 16 and a movable groove 17 adapted to the gear plate 18 are provided inside the adjustment block 15, and the gear groove 16 is meshed with the gear plate 18. The diameter of the movable groove 17 is larger than the diameter of the gear plate 18. A handle 20 is installed on the side of the gear plate 18 away from the bed board 1, and a hole adapted to the handle 20 is provided on the side of the adjustment block 15 away from the bed board 1; wherein, the distance between the side of the foot pedal 14 and the adjustment block 15 is greater than the height of the gear plate 18, the gear plate 18 is in a meshing state with the gear groove 16, and the connecting shaft 19 to the foot pedal 14 The distance at one end is smaller than the distance between the connecting shaft 19 and the connecting rod between the limit block 11, which can satisfy the rotation of the foot pedal 14; specifically, after the adjustment block 15 moves to the specified position, the handle 20 is pulled to make the gear plate 18 disengage from the inside of the gear groove 16 and enter the inside of the movable groove 17. After entering, the handle 20 is turned clockwise, and the foot pedal 14 rotates clockwise under the drive of the connecting shaft 19. When the foot pedal 14 is adjusted to the required angle, the handle 20 is pushed to reinsert the gear plate 18 into the gear groove 16. After insertion, the position of the foot pedal 14 is limited. The flipped foot pedal 14 can prevent foot drop in cooperation with the support plate 6, thereby improving the treatment effect.

[0037] The working principle of the present invention is as follows: before use, the mounting seat 202 is connected to the bottom of the bed board 1 by using the mounting bolt 203. After the connection, the door-shaped mounting frame 201 is installed, the main shaft 22 is moved upward, and the positioning block 23 is moved out of the positioning groove 205 and into the slide rail 204 by using the main shaft 22. After entering, the position of the main shaft 22 can be adjusted along the slide rail 204. After adjusting to the position corresponding to the positioning groove 205, the main shaft 22 is put down, and the positioning block 23 re-enters the positioning groove 205 to limit the position of the main shaft 22. When the telescopic mechanism 3 and the bracket 5 extend from the side of the bed board 1, the bracket 5 is connected to the L-shaped screw 305 by using the connecting ring 9, and the telescopic mechanism 3 is driven to adjust by using the bracket 5. During the adjustment process, the sleeve 301 rotates around the connecting seat 4, and the L-shaped screw 305 is adjusted to the length extending from the inside of the sleeve 301 according to the needs. After the desired height is reached, the fastening nut 304 is tightened to limit the length of the L-shaped screw 305, so that the bracket 5, the connecting seat 4 and the telescopic mechanism 3 form a stable quadrilateral structure, so that the height and angle of the bracket 5 can be adjusted and limited. The adjusting rod 21 is rotated, and the adjusting rod 21 will simultaneously drive the scale to rotate and move during the rotation process. The user reads the scale indicated by the pointer on the limit ring 26. After the adjusting tube 21 is adjusted to the specified angle, the limit ring 26 is mounted on the main shaft 22 so that the protrusion 27 on the top of the limit ring 26 is clamped to The limiting nut 29 is assembled on the main shaft 22 in the groove 24 at the bottom of the adjusting tube 21 after being clamped. The limiting nut 29 is used to limit the position of the limiting ring 26 to prevent the protrusion 27 from falling off from the groove 24. The slide groove 25 and the slider 28 can prevent the limiting ring 26 from rotating around the main shaft 22, thereby realizing the limitation of the rotation adjustment angle of the adjusting tube 21. The pull rod 12 is manually pulled, and the limiting block 11 is driven by the pull rod 12 to move downward and enter the bottom of the recovery groove 8. After entering, the adjusting block 15 is moved to the inside of the limiting groove 7 at the other end. The other end of the foot pedal 14 extends out from the inside of the bracket 5. The pull rod 12 is released, and the limiting block 11 is reset under the action of the spring 10, and the position of the adjusting block 15 is adjusted. To define, after the adjustment block 15 moves to the specified position, pull the handle 20 to make the gear plate 18 disengage from the inside of the gear groove 16 and enter the inside of the movable groove 17. After entering, turn the handle 20 clockwise, and the foot pedal 14 rotates clockwise under the drive of the connecting shaft 19. When the foot pedal 14 is adjusted to the angle required for use, push the handle 20 to reinsert the gear plate 18 into the gear groove 16. After insertion, the position of the foot pedal 14 is defined. The flipped foot pedal 14 can be used in cooperation with the support plate 6 to prevent the foot from dropping. After the foot is placed, the user uses a bandage to wrap and fix the foot and the support plate 5 to prevent the user's foot from falling off the support plate 6, thereby improving the treatment effect.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0041] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A hospital bed with a double lower limb abduction angle fixer, characterized in that: The invention comprises a bed plate (1), wherein mounting mechanisms (2) are installed on both sides of the bottom of the bed plate (1), the bottom of the mounting mechanism (2) is slidably connected with a main shaft (22), an adjusting tube (21) is rotatably installed on the periphery of the main shaft (22), a limiting ring (26) is slidably installed on the periphery of the main shaft (22), a convex block (27) is installed around the top of the limiting ring (26), a groove (24) adapted to the convex block (27) is provided at the bottom of the main shaft (22), and a limiting nut (29) is threadedly installed on the periphery of the main shaft (22) at the bottom of the limiting ring (26); A connecting seat (4) is installed on the side of the adjusting tube (21), and a plurality of telescopic mechanisms (3) are installed on the side of the connecting seat (4), each of the telescopic mechanisms (3) comprising a sleeve (301), an adjusting groove (303), a fastening nut (304) and an L-shaped screw (305), one end of the sleeve (301) is rotatably connected to the connecting seat (4), an L-shaped screw (305) is slidably installed inside the sleeve (301), an adjusting groove (303) is provided on the side of the sleeve (301), and a fastening nut (304) is installed on the periphery of the L-shaped screw (305); The other end of the L-shaped screw rod (305) is sleeved with a connecting ring (9), a bracket (5) is installed on the top of the connecting ring (9), a supporting plate (6) is installed on the top of the bracket (5), a recovery groove (8) is provided on the side of the bracket (5), a limiting block (11) is installed inside the recovery groove (8) through a spring (10), limiting grooves (7) are provided inside the bracket (5) at both ends of the recovery groove (8), an adjusting block (15) is slidably installed inside the limiting groove (7), a foot pedal (14) is slidably installed between the adjusting blocks (15) through a connecting shaft (19), a gear plate (18) is installed on the side of the connecting shaft (19) extending to the inside of the adjusting block (15), and a gear groove (16) and a movable groove (17) adapted to the gear plate (18) are provided inside the adjusting block (15).

2. A hospital bed with a double lower limb abduction angle fixer according to claim 1, characterized in that: Slide grooves (25) are provided on both sides of the main shaft (22), sliding blocks (28) adapted to the slide grooves (25) are installed on both sides of the interior of the limiting ring (26), a pointer is installed at the other end of the limiting ring (26), and a scale corresponding to the pointer is provided on the periphery of the regulating tube (21).

3. The hospital bed with a double lower limb abduction angle fixer according to claim 1, characterized in that: A pull rod (12) is installed at the bottom of the limit block (11), plugs (13) are installed on both sides of the bottom of the pull rod (12), and a hole matching the plug (13) is opened inside the bracket (5).

4. The hospital bed with a double lower limb abduction angle fixer according to claim 1, characterized in that: A positioning block (23) is installed on the top of the main shaft (22); the mounting mechanism (2) comprises a door-shaped mounting frame (201), a slide rail (204) and a positioning groove (205); the door-shaped mounting frame (201) is installed on both sides of the bottom of the bed board (1); a mounting seat (202) is provided inside the door-shaped mounting frame (201); and positioning grooves (205) adapted to the positioning block (23) are provided at four corners of the mounting seat (202).

5. The hospital bed with a double lower limb abduction angle fixer according to claim 4, characterized in that: The mounting mechanism (2) further comprises a mounting seat (202) and a mounting bolt (203); the mounting seat (202) is mounted on the periphery of the door-shaped mounting frame (201); and the mounting seat (202) is connected to the bed board (1) via the mounting bolt (203).

6. The hospital bed with a double lower limb abduction angle fixer according to claim 1, characterized in that: The gear groove (16) is meshed with the gear plate (18), and the diameter of the movable groove (17) is greater than the diameter of the gear plate (18).

7. The hospital bed with a double lower limb abduction angle fixer according to claim 6, characterized in that: A handle (20) is installed on the side of the gear plate (18) away from the bed board (1), and a hole matching the handle (20) is opened on the side of the adjustment block (15) away from the bed board (1).

8. The hospital bed with a double lower limb abduction angle fixer according to claim 1, characterized in that: The connecting seat (4) is an L-shaped structure, and the vertical planes of each telescopic mechanism (3) are staggered with each other.

9. A hospital bed with a lower limb abduction angle fixer according to any one of claims 1 to 8, characterized in that: The telescopic mechanism (3) further comprises an inner hole (302), the inner part of the sleeve (301) is provided with an inner hole (302) adapted to the L-shaped screw (305), and bed legs are installed at the four corners of the bottom of the bed board (1).

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