Knee joint rehabilitation training driver

Abstract

The utility model discloses a knee joint rehabilitation training driver which comprises an upper limb frame, a connecting arm and a lower limb frame, one side of the upper limb frame is movably connected with the lower limb frame, the connecting arm is installed at the joint of the lower limb frame and the upper limb frame, the connecting arm is fixedly connected with the upper limb frame, the connecting arm is movably connected with the lower limb frame, and the lower limb frame is fixedly connected with the connecting arm. A transmission box is erected on one side between the upper limb frame and the lower limb frame, the input end of the transmission box is connected with a micro motor of a power source, and the power output end of the micro motor is connected with a transmission shaft. When the knee joint rehabilitation training driver is used, due to the design of the tooth-missing gears, the overall knee joint exercise range is 0-90 degrees, the possibility that the knee joint is worsened due to out-of-range exercise is avoided, meanwhile, the exercise equipment adopts a transmission system as power, a rehabilitation nursing doctor does not need to manually exercise the knee joint of a patient, and the operation is simple and convenient. Labor intensity of rehabilitation nursing doctors is reduced, and use by users is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of knee joint rehabilitation training components, in particular to a knee joint rehabilitation training driver. Background Art

[0002] The knee joint has the largest articular surface in the human body, and its normal function is crucial to the load-bearing capacity. Knee joint injury is one of the most common problems for adults and adolescents with high activity levels. In knee joint rehabilitation treatment, the knee joint needs to be trained with auxiliary materials to meet the effect of normal knee joint exercise. A good knee joint rehabilitation training component can effectively reduce the labor intensity of medical staff and facilitate users.

[0003] The utility model provides a hydraulic knee joint orthosis device (CN215584509U), including a thigh support; a calf support; a pair of intermediate connecting parts, which are arranged in parallel and respectively connected to the thigh support and the calf support. The intermediate connecting part includes an upper hydraulic rod, an intermediate connecting plate, and a lower hydraulic rod which are connected in sequence; the upper hydraulic rod is assembled and connected to the thigh support; the lower hydraulic rod is assembled and connected to the calf support; the intermediate connecting plate is provided with upper and lower limit buckles, which rotate coaxially with the upper hydraulic rod and the lower hydraulic rod respectively, so as to adjust the rotation of the upper and lower hydraulic rods by adjusting the limit buckles. The utility model provides that after patients with knee joint diseases wear the device, the pressure between the narrower side of the knee joint compartment is significantly reduced, the disease is prevented from further deteriorating, and surgical treatment is delayed or avoided; the biomechanical line of the lower limbs is effectively corrected, and the pain of the patient is relieved. The innovation of the intermediate hydraulic rod provides a more convenient orthosis adjustment device, which changes the joint angle adjustment from manual to automatic, thereby reducing the adjustment time for the patient. However, during use, the microcontroller is required to accurately control the ejection and retraction of the hydraulic system. When the hydraulic system exceeds the predetermined range, it may cause the knee joint to exercise beyond the range, leading to worsening of the knee joint condition, and even causing irreversible medical accidents, causing trouble to the user.

[0004] To this end, we propose a knee rehabilitation training driver. Utility Model Content

[0005] The purpose of the utility model is to provide a knee joint rehabilitation training driver to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a knee joint rehabilitation training driver, comprising an upper limb frame, a connecting arm and a lower limb frame, one side of the upper limb frame is movably connected to the lower limb frame, a connecting arm is installed at the connection between the lower limb frame and the upper limb frame, the connecting arm and the upper limb frame are fixedly connected, and the connecting arm and the lower limb frame are movably connected, a transmission box is set up on one side between the upper limb frame and the lower limb frame, and the input end of the transmission box is connected to a micro motor of a power source, the power output end of the micro motor is connected to a transmission shaft, and one end of the transmission shaft is keyed to a connecting gear, the other side of the connecting gear is meshedly connected to a toothless gear, and the toothless gear and the lower limb frame are fixedly connected.

[0007] Preferably, restraint belts for restraining the femur and tibia are arranged at the ends of the upper limb frame and the lower limb frame, and the restraint belts provide flexible restraint protection for the thigh and calf.

[0008] Preferably, movable plates are inserted into both sides of the middle of the connecting arm, and a positioning column is fixed to the rear end of the middle of the connecting arm.

[0009] Preferably, the side of the positioning column away from the connecting arm is snap-connected with an inner cover, and the inner cover covers the connecting gear and the toothless gear.

[0010] Preferably, a positioning shaft is fixedly connected to a side of the connecting arm away from the transmission shaft, and a toothless gear is movably connected to an outer wall of the positioning shaft.

[0011] Preferably, the upper limb frame is transmission-connected to the lower limb frame via a micro motor.

[0012] Compared with the prior art, the beneficial effects of the utility model are: when the knee joint rehabilitation training driver is used, due to the design of the toothless gear, the overall training range of the knee joint is distributed between 0° and 90°, and out-of-range training will not occur, which may lead to the possibility of worsening of the knee joint condition. At the same time, the training equipment uses a transmission system as power, and there is no need for rehabilitation nursing physicians to manually train the patient's knee joint, which reduces the labor intensity of rehabilitation nursing physicians and is convenient for users to use.

[0013] The upper limb frame, lower limb frame and restraint belt are ergonomically designed, and the curved surface design can be well connected with the thigh and calf above and below the knee joint, meeting the needs of restraining the lower limbs, making it convenient for users to wear the knee joint rehabilitation training frame and use it.

[0014] The connecting arm serves as a connecting component between the upper limb frame and the lower limb frame. It is connected to the upper limb frame in a fixed manner to meet the user's needs for moving the knee joint. At the same time, in order to reduce the pressure on the side of the knee joint, the inner cover with a smooth surface design can reduce the friction damage caused by moving the knee joint rehabilitation training frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the separation structure of the connecting arm and the upper limb frame of the utility model;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] In the figure: 1. upper limb frame; 2. connecting arm; 21. movable plate; 22. inner cover; 23. positioning column; 24. positioning shaft; 3. transmission box; 4. micro motor; 41. transmission shaft; 42. connecting gear; 43. toothless gear; 5. lower limb frame; 6. restraint belt. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] See also Figure 1-3 The utility model provides a technical solution: a knee joint rehabilitation training driver, comprising an upper limb frame 1, a connecting arm 2 and a lower limb frame 5, one side of the upper limb frame 1 is movably connected with the lower limb frame 5, a connecting arm 2 is installed at the connection between the lower limb frame 5 and the upper limb frame 1, the connecting arm 2 and the upper limb frame 1 are fixedly connected, and the connecting arm 2 and the lower limb frame 5 are movably connected, a transmission box 3 is set up on one side between the upper limb frame 1 and the lower limb frame 5, and the input end of the transmission box 3 is connected to a micro motor 4 of a power source, the power output end of the micro motor 4 is connected to a transmission shaft 41, and one end of the transmission shaft 41 is key-connected There is a connecting gear 42, and the other side of the connecting gear 42 is meshed with a toothless gear 43, and the toothless gear 43 is fixedly connected to the lower limb frame 5. The ends of the upper limb frame 1 and the lower limb frame 5 are provided with a restraint belt 6 for restraining the femur and tibia, and the restraint belt 6 provides flexible restraint protection for the thigh and calf. The upper limb frame 1, the lower limb frame 5 and the restraint belt 6 are ergonomically designed, and the arc surface design can be well connected with the thigh and calf above and below the knee joint, meeting the demand for restraining the lower limbs, making it convenient for users to wear the knee joint rehabilitation training frame and use it conveniently.

[0022] Example 2

[0023] See also Figure 1-3 The utility model provides a technical solution: a knee joint rehabilitation training driver, wherein movable plates 21 are inserted into both sides of the middle of the connecting arm 2, and a positioning column 23 is fixed to the rear end of the middle of the connecting arm 2, and the positioning column 23 is connected to the inner cover 22 on the side away from the connecting arm 2, and the inner cover 22 covers the connecting gear 42 and the toothless gear 43, and the positioning shaft 24 is fixedly connected to the side away from the transmission shaft 41 of the connecting arm 2, and the outer wall of the positioning shaft 24 is movably connected to the toothless gear 43, and the connecting arm 2 serves as an upper limb frame 1 and a lower limb frame 5. The connecting component is connected to the upper limb frame 1 in a fixed connection manner to meet the user's needs for moving the knee joint. At the same time, in order to reduce the pressure on the side of the knee joint, the inner cover 22 with a smooth surface design can reduce the friction damage caused by the movement of the knee joint rehabilitation training frame. At the same time, in order to ensure the rationality of the overall structure, the inner cover 22 covers the connecting gear 42 and the toothless gear 43, and the outer wall of the positioning shaft 24 is movably connected with the toothless gear 43 to ensure that the overall structure can be effectively used. The upper limb frame 1 is connected to the upper limb frame 1 through the micro motor. 4 is connected to the lower limb frame 5 for transmission. When the user needs to perform automatic rehabilitation training of the knee joint through the transmission of the micromotor 4, the micromotor 4 can be started, and the micromotor 4 rotates clockwise to drive the transmission shaft 41 to rotate axially. At the same time, the connecting gear 42 drives the toothless gear 43 to rotate counterclockwise. When the toothless gear 43 rotates to the extreme position, there is no gear at the bottom of the toothless gear 43 to continue to provide the connecting gear 42 for meshing transmission. At this time, the rotation angle between the lower limb frame 5 and the upper limb frame 1 is 60-90° to meet the needs of knee joint exercise. At the same time, when the micromotor 4 rotates counterclockwise, the toothless gear 43 rotates clockwise. At this time, the angle between the lower limb frame 5 and the upper limb frame 1 is below the horizontal plane. Due to the design of the toothless gear 43, the overall exercise range of the knee joint is 0°-90°, and there will be no over-range exercise, which may lead to the possibility of worsening of the knee joint condition. At the same time, the exercise equipment uses a transmission system as power, and there is no need for rehabilitation nursing physicians to manually exercise the patient's knee joint, which reduces the labor intensity of rehabilitation nursing physicians and is convenient for users to use.

[0024] Working principle: For this type of knee joint rehabilitation training driver, the upper limb frame 1 and the lower limb frame 5 are first worn along the thigh and calf above and below the knee joint through the constraint belt 6. At this time, the micro motor 4 can be started, and the micro motor 4 rotates clockwise, driving the transmission shaft 41 to rotate axially. At the same time, the connecting gear 42 drives the toothless gear 43 to rotate counterclockwise. When the toothless gear 43 rotates to the extreme position, there is no gear at the bottom of the toothless gear 43 to continue to provide the connecting gear 42 for meshing transmission. At this time, the rotation angle between the lower limb frame 5 and the upper limb frame 1 is 60-90° to meet the needs of knee joint exercise. At the same time, when the micro motor 4 rotates counterclockwise, the toothless gear 43 rotates clockwise. Finally, the angle between the lower limb frame 5 and the upper limb frame 1 is below the horizontal plane, and the knee joint exercise can be repeated many times.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A knee joint rehabilitation training driver, comprising an upper limb frame (1), a connecting arm (2) and a lower limb frame (5), characterized in that: One side of the upper limb frame (1) is movably connected to the lower limb frame (5), a connecting arm (2) is installed at the connection between the lower limb frame (5) and the upper limb frame (1), the connecting arm (2) and the upper limb frame (1) are fixedly connected, and the connecting arm (2) and the lower limb frame (5) are movably connected, a transmission box (3) is set on one side between the upper limb frame (1) and the lower limb frame (5), and the input end of the transmission box (3) is connected to a micro motor (4) of a power source, the power output end of the micro motor (4) is connected to a transmission shaft (41), and one end of the transmission shaft (41) is key-connected to a connecting gear (42), the other side of the connecting gear (42) is meshedly connected to a toothless gear (43), and the toothless gear (43) and the lower limb frame (5) are fixedly connected.

2. A knee joint rehabilitation training driver according to claim 1, characterized in that: The ends of the upper limb frame (1) and the lower limb frame (5) are provided with restraint belts (6) for restraining the femur and tibia, and the restraint belts (6) provide flexible restraint protection for the thigh and calf.

3. A knee joint rehabilitation training driver according to claim 1, characterized in that: Movable contact plates (21) are inserted into both sides of the middle of the connecting arm (2), and a positioning column (23) is fixed to the rear end of the middle of the connecting arm (2).

4. A knee joint rehabilitation training driver according to claim 3, characterized in that: The side of the positioning column (23) away from the connecting arm (2) is snap-connected with an inner cover (22), and the inner cover (22) covers the connecting gear (42) and the toothless gear (43).

5. A knee joint rehabilitation training driver according to claim 4, characterized in that: A positioning shaft (24) is fixedly connected to a side of the connecting arm (2) away from the transmission shaft (41), and a toothless gear (43) is movably connected to an outer wall of the positioning shaft (24).

6. A knee joint rehabilitation training driver according to claim 1, characterized in that: The upper limb frame (1) is transmission-connected to the lower limb frame (5) via a micro motor (4).

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