Leg rehabilitation assisting device

Abstract

The invention discloses a leg rehabilitation assisting device which comprises a rehabilitation bed, a base, a rotating motor, a thigh driving motor, a thigh supporting arm, a shank driving motor and a shank supporting arm, the bottom end face of the rehabilitation bed is provided with supporting legs for providing supporting, and one side of the top end face of the rehabilitation bed is provided with a positioning groove which is concavely attached to the buttocks; the positioning grooves are used for positioning the lying position of a patient, two bases are rotationally connected to the side, corresponding to the positioning grooves, of the bottom end face of the rehabilitation bed, rotating motors used for driving the bases to rotate are arranged on the bottom end faces of the bases, and thigh supporting arms are rotationally connected to the side edges of the bases. A thigh driving motor used for driving the thigh supporting arm to rotate is arranged on one side of the base, the bottom end of the thigh supporting arm is rotationally connected with a shank supporting arm, and the shank driving motor is arranged at the bottom end of the thigh supporting arm; by starting a rotating motor, a thigh driving motor or a shank driving motor, rehabilitation exercise can be conducted on different parts of the legs, and therefore the effect of targeted rehabilitation training is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary rehabilitation equipment, and in particular to a leg rehabilitation auxiliary device. Background Art

[0002] Medical theory and clinical research have proven that scientific rehabilitation training plays a vital role in restoring limb motor function. Existing leg rehabilitation devices typically only offer single-angle training, failing to provide multi-angle training or mimic basic human movement. This results in poor training effectiveness during actual exercise and compromises the comprehensiveness of the training. Therefore, a leg rehabilitation assistive device has been designed to address these issues. Summary of the Invention

[0003] In view of the shortcomings of existing auxiliary rehabilitation equipment, the purpose of the present invention is to provide a leg rehabilitation auxiliary device with the advantages of multi-angle rehabilitation exercise, targeted rehabilitation training, and adaptability to different leg lengths.

[0004] To achieve the above-mentioned purpose, a technical solution adopted by the present invention is: a leg rehabilitation auxiliary device, comprising a rehabilitation bed, a base, a rotating motor, a thigh drive motor, a thigh support arm, a calf drive motor and a calf support arm, the bottom end surface of the rehabilitation bed is provided with a support leg for providing support, one side of the top surface of the rehabilitation bed is provided with a positioning groove which is recessed and fits the buttocks, the positioning groove is used to position the patient in a lying position, the bottom end surface of the rehabilitation bed is rotatably connected to one side corresponding to the positioning groove, the bottom end surface of the base is provided with a rotating motor for driving the base to rotate, the side edge of the base is rotatably connected to the thigh support arm, one side of the base is provided with a thigh drive motor for driving the thigh support arm to rotate, the bottom end of the thigh support arm is rotatably connected to the calf support arm, the calf drive motor is provided at the bottom end of the thigh support arm, and the calf drive motor is used to drive the calf support arm to rotate;

[0005] Preferably, the rotation axis of the thigh support arm is perpendicular to the rotation axis of the base, and the rotation axis of the calf support arm is parallel to the rotation axis of the thigh support arm;

[0006] Preferably, the thigh support arm includes a thigh articulated arm, a thigh telescopic arm, a guide rod, a length adjustment assembly and a U-shaped lifting groove, one end of the thigh articulated arm is rotatably connected to the base through a rotating shaft, the rotating shaft is fixedly connected to the output shaft of the thigh drive motor, the other end of the thigh articulated arm is provided with a guide rod, the thigh telescopic arm is slidably connected to the thigh articulated arm through the guide rod, the length adjustment assembly is provided on both sides of the thigh articulated arm and the thigh telescopic arm, the length adjustment assembly is used to adjust the distance between the thigh articulated arm and the thigh telescopic arm, the top of the thigh articulated arm and the thigh telescopic arm is provided with a U-shaped lifting groove, the U-shaped lifting groove is used to locate the thigh position;

[0007] Preferably, the calf support arm includes a calf hinged arm, a calf telescopic arm, a guide rod, a length adjustment assembly and a U-shaped lifting groove, one end of the calf hinged arm is rotatably connected to the thigh telescopic arm through a rotating shaft, the rotating shaft is fixedly connected to the output shaft of the calf drive motor, the other end of the calf hinged arm is provided with a guide rod, the calf telescopic arm is slidably connected to the calf hinged arm through the guide rod, the length adjustment assembly is arranged on both sides of the calf hinged arm and the calf telescopic arm, the length adjustment assembly is used to adjust the distance between the calf hinged arm and the calf telescopic arm, the top ends of the calf hinged arm and the calf telescopic arm are provided with a U-shaped lifting groove, and the U-shaped lifting groove is used to locate the calf position;

[0008] Further preferably, the length adjustment assembly includes a screw rod, a length adjustment motor and an engaging nut, the engaging nut being fixedly connected to both sides of the thigh hinge arm and the calf hinge arm, the length adjustment motor being arranged on both sides of the thigh hinge arm and the calf hinge arm, one end of the screw rod being fixedly connected to the output shaft of the length adjustment motor, and the other end of the screw rod being engaged with the engaging nut; the length adjustment motor drives the screw rod to rotate, thereby changing the length of the thigh support arm and the calf support arm, thereby adapting to the leg lengths of different patients;

[0009] Further preferably, an elastic bandage for fixing the patient's legs is wrapped around the outer edge of the U-shaped lifting groove;

[0010] Preferably, the top surface of the rehabilitation bed also has a headrest to improve the patient's comfort;

[0011] The beneficial effects of the present invention are: 1. By rotating the motor to drive the thigh support arm and the calf support arm to swing left and right at the same time, the patient's thigh can be abducted and adducted; by the thigh drive motor to drive the thigh support arm and the calf support arm to swing up and down, the patient's thigh can be flexed and extended; by starting the calf drive motor to drive the calf support arm to swing up and down, the patient's calf can be flexed and extended, thereby realizing multi-angle rehabilitation exercises for the patient's legs; 2. By starting the rotating motor, the thigh drive motor or the calf drive motor, rehabilitation exercises can be performed on different parts of the legs respectively, thereby achieving the effect of targeted rehabilitation training; 3. By driving the screw rod to rotate through the length adjustment motor, the length of the thigh support arm and the calf support arm can be changed, so as to adapt to the leg lengths of different patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 、 2 This is a three-dimensional structural view of the present invention.

[0013] Figure 3 This is a structural view of the base, thigh support arm and calf support arm combination of the present invention.

[0014] Figure 4 This is a three-dimensional structural view of the thigh support arm of the present invention.

[0015] Figure 5 This is a three-dimensional structural view of the calf support arm of the present invention. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0017] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0018] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "provided with," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0019] See also Figures 1 to 5 , embodiments of the present invention include:

[0020] A leg rehabilitation auxiliary device comprises a rehabilitation bed 1, a base 2, a rotating motor 3, a thigh drive motor 4, a thigh support arm 5, a calf drive motor 6 and a calf support arm 7. The bottom end surface of the rehabilitation bed 1 is provided with a support leg 11 for providing support, and one side of the top surface of the rehabilitation bed 1 is provided with a positioning groove 12 that is recessed and fits the buttocks. The positioning groove 12 is used to position the patient in a lying position. The bottom end surface of the rehabilitation bed 1 is rotatably connected to two bases 2 on a side corresponding to the positioning groove 12. The bottom end surface of the base 2 is provided with a rotating motor 3 for driving the base 2 to rotate. The side of the base 2 is rotatably connected to the thigh support arm 5. One side of the base 2 is provided with a thigh drive motor 4 for driving the thigh support arm 5 to rotate. The bottom end of the thigh support arm 5 is rotatably connected to the calf support arm 7. The calf drive motor 6 is provided at the bottom end of the thigh support arm 5. The calf drive motor 6 is used to drive the calf support arm 7 to rotate.

[0021] The rotation axis of the thigh support arm 5 is perpendicular to the rotation axis of the base 2, and the rotation axis of the calf support arm 7 is parallel to the rotation axis of the thigh support arm 5;

[0022] The thigh support arm 5 includes a thigh articulated arm 51, a thigh telescopic arm 52, a guide rod 8, a length adjustment component 9 and a U-shaped lifting groove 10. One end of the thigh articulated arm 51 is rotatably connected to the base 2 through a rotating shaft, and the rotating shaft is fixedly connected to the output shaft of the thigh drive motor 4. The other end of the thigh articulated arm 51 is provided with a guide rod 8, and the thigh telescopic arm 52 is slidably connected to the thigh articulated arm 51 through the guide rod 8. The length adjustment component 9 is provided on both sides of the thigh articulated arm 51 and the thigh telescopic arm 52. The length adjustment component 9 is used to adjust the distance between the thigh articulated arm 51 and the thigh telescopic arm 52. The top of the thigh articulated arm 51 and the thigh telescopic arm 52 is provided with a U-shaped lifting groove 10, and the U-shaped lifting groove 10 is used to locate the thigh position;

[0023] The calf support arm 7 includes a calf articulated arm 71, a calf telescopic arm 72, a guide rod 8, a length adjustment assembly 9 and a U-shaped lifting groove 10. One end of the calf articulated arm 71 is rotatably connected to the thigh telescopic arm 52 through a rotating shaft, and the rotating shaft is fixedly connected to the output shaft of the calf drive motor 6. The other end of the calf articulated arm 71 is provided with a guide rod 8, and the calf telescopic arm 72 is slidably connected to the calf articulated arm 71 through the guide rod 8. The length adjustment assembly 9 is arranged on both sides of the calf articulated arm 71 and the calf telescopic arm 72. The length adjustment assembly 9 is used to adjust the distance between the calf articulated arm 71 and the calf telescopic arm 72. The top of the calf articulated arm 71 and the calf telescopic arm 72 is provided with a U-shaped lifting groove 10, and the U-shaped lifting groove 10 is used to locate the calf position;

[0024] The length adjustment assembly 9 includes a screw rod 91, a length adjustment motor 92 and an engaging nut 93. The engaging nut 93 is fixedly connected to both sides of the thigh articulated arm 51 and the calf articulated arm 71. The length adjustment motor 92 is provided on both sides of the thigh articulated arm 51 and the calf articulated arm 71. One end of the screw rod 91 is fixedly connected to the output shaft of the length adjustment motor 92, and the other end of the screw rod 91 is engaged with the engaging nut 93. The length adjustment motor 92 drives the screw rod 91 to rotate, thereby changing the length of the thigh support arm 5 and the calf support arm 7, so as to adapt to different patient leg lengths.

[0025] The outer edge of the U-shaped lifting groove 10 is wrapped with an elastic bandage for fixing the patient's legs;

[0026] The top surface of the rehabilitation bed 1 also has a headrest 13 to improve the patient's comfort;

[0027] Through the above settings, in the actual working process, its specific working principle is as follows:

[0028] The patient first lies flat on the rehabilitation bed 1, with his buttocks located in the positioning slot 12 on one side of the rehabilitation bed 1, and his legs placed in the U-shaped lifting slot 10 of the thigh support arm 5 and the calf support arm 7; then, according to the length of the patient's legs, the length adjustment motor 92 is started to drive the screw rod 91 to rotate, so that the length of the thigh support arm 5 and the calf support arm 7 can be changed to adapt to the leg lengths of different patients; finally, the legs are fixed by the elastic bandage wrapped around the outer edge of the U-shaped lifting slot 10.

[0029] During the thigh rehabilitation process, the rotating motor 3 is started to drive the thigh support arm 5 and the calf support arm 7 to swing left and right at the same time, so that the patient's thigh can be abducted and adducted. The thigh driving motor 4 is started to drive the thigh support arm 5 and the calf support arm 7 to swing up and down, so that the patient's thigh can be flexed and extended, thereby achieving rehabilitation exercises for the thigh and hip joints.

[0030] During the calf rehabilitation process, the calf drive motor 6 is started to drive the calf support arm 7 to swing up and down, so that the patient's calf can flex and extend, thereby achieving rehabilitation exercises for the calf and knee joint.

[0031] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A leg rehabilitation assistive device, characterized in that: The rehabilitation bed comprises a rehabilitation bed, a base, a rotating motor, a thigh drive motor, a thigh support arm, a calf drive motor and a calf support arm. The bottom end surface of the rehabilitation bed has a support leg for providing support. One side of the top surface of the rehabilitation bed has a positioning groove that is recessed and fits the buttocks. The positioning groove is used to position the patient's lying position. The bottom end surface of the rehabilitation bed is rotatably connected to one side of the positioning groove. The bottom end surface of the base is provided with a rotating motor for driving the base to rotate. The side of the base is rotatably connected to the thigh support arm. One side of the base is provided with a thigh drive motor for driving the thigh support arm to rotate. The bottom end of the thigh support arm is rotatably connected to the calf support arm. The calf drive motor is arranged at the bottom end of the thigh support arm. The calf drive motor is used to drive the calf support arm to rotate.

2. A leg rehabilitation assistive device according to claim 1, characterized in that: The rotation axis of the thigh support arm is perpendicular to the rotation axis of the base, and the rotation axis of the calf support arm is parallel to the rotation axis of the thigh support arm.

3. The leg rehabilitation assistive device according to claim 1, characterized in that: The thigh support arm includes a thigh articulated arm, a thigh telescopic arm, a guide rod, a length adjustment assembly and a U-shaped lifting groove. One end of the thigh articulated arm is rotatably connected to the base through a rotating shaft, and the rotating shaft is fixedly connected to the output shaft of the thigh drive motor. The other end of the thigh articulated arm is provided with a guide rod, and the thigh telescopic arm is slidingly connected to the thigh articulated arm through the guide rod. The length adjustment assembly is arranged on both sides of the thigh articulated arm and the thigh telescopic arm. The length adjustment assembly is used to adjust the distance between the thigh articulated arm and the thigh telescopic arm. The top of the thigh articulated arm and the thigh telescopic arm is provided with a U-shaped lifting groove, and the U-shaped lifting groove is used to locate the thigh position.

4. The leg rehabilitation assistive device according to claim 1, characterized in that: The calf support arm includes a calf articulated arm, a calf telescopic arm, a guide rod, a length adjustment assembly and a U-shaped lifting groove. One end of the calf articulated arm is rotatably connected to the thigh telescopic arm through a rotating shaft, and the rotating shaft is fixedly connected to the output shaft of the calf drive motor. The other end of the calf articulated arm is provided with a guide rod, and the calf telescopic arm is slidingly connected to the calf articulated arm through the guide rod. The length adjustment assembly is arranged on both sides of the calf articulated arm and the calf telescopic arm, and the length adjustment assembly is used to adjust the distance between the calf articulated arm and the calf telescopic arm. The top of the calf articulated arm and the calf telescopic arm is provided with a U-shaped lifting groove, and the U-shaped lifting groove is used to locate the calf position.

5. A leg rehabilitation assistive device according to any one of claims 3 and 4, characterized in that: The length adjustment assembly includes a screw rod, a length adjustment motor and an engaging nut. The engaging nut is fixedly connected to both sides of the thigh articulated arm and the calf articulated arm. The length adjustment motor is arranged on both sides of the thigh articulated arm and the calf articulated arm. One end of the screw rod is fixedly connected to the output shaft of the length adjustment motor, and the other end of the screw rod is engaged with the engaging nut.

6. A leg rehabilitation assistive device according to any one of claims 3 and 4, characterized in that: An elastic bandage for fixing the patient's legs is wrapped around the outer edge of the U-shaped lifting groove.

7. The leg rehabilitation assistive device according to claim 1, characterized in that: The top surface of the rehabilitation bed is also provided with a headrest for improving the comfort of the patient.

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