CN212369255U - Adjustable and accurate feedback hip joint training device - Google Patents
Adjustable and accurate feedback hip joint training device Download PDFInfo
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- CN212369255U CN212369255U CN202020911161.7U CN202020911161U CN212369255U CN 212369255 U CN212369255 U CN 212369255U CN 202020911161 U CN202020911161 U CN 202020911161U CN 212369255 U CN212369255 U CN 212369255U
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- leg length
- matching mechanism
- length matching
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Abstract
The invention provides an adjustable and accurate feedback hip joint training device.A leg length matching mechanism has one end hinged on a sliding block, the sliding block moves on a sliding rail parallel to the connecting line of the left hip joint and the right hip joint of a human body, and an angular displacement sensor acquires the rotation angle of the leg length matching mechanism at the hinged position; the other end of the leg length matching mechanism is adjusted in length through a guide rail and is provided with a position locking mechanism; one end of the servo driving mechanism is hinged on the bed board, and the other end of the servo driving mechanism is hinged with the leg length matching mechanism and used for driving the leg length matching mechanism to rotate; the leg bandage is used for fixing the thigh of a patient, the leg bandage is installed at the other end of the leg length matching mechanism through the compensation guide rail, the compensation guide rail can freely move along the leg length direction, and the force sensor is installed between the leg bandage and the compensation guide rail and used for measuring the force of the patient acting on the leg bandage. The invention is safe and reliable, can effectively carry out adjustment and locking, and can accurately feed back the hip joint training condition.
Description
Technical Field
The invention belongs to the technical field of rehabilitation medical equipment, and relates to a hip joint training device.
Background
At present, different hip joint training devices are used by rehabilitation medical equipment in the early stage of rehabilitation to perform lower limb rehabilitation training. The traditional training device cannot be completely adapted to more crowds, particularly, when patients are different in height, matching adjustment is less, the sensor detection feedback is lack, only the leg lifting and stepping training is simple, and the leg movement angle and the force exertion of the patients cannot be accurately reflected. Along with the increase of the demand of the rehabilitation medical market, some intelligent rehabilitation training devices appear in the market, but only rely on servo motor to monitor the power generation and the motion angle of a patient, a sensor for directly monitoring the motion angle and the power generation condition of the patient is not provided, the motion angle and the power generation condition of the patient are obtained through indirect conversion calculation, and the device is not provided with an adjusting mechanism to be more scientifically adapted to different people and can not achieve accurate rehabilitation, so that the hip joint training device which is safer, more reliable, more effectively adjustable in locking and accurate in feedback is very necessary.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the hip joint training device which is safer, more reliable, more effectively adjustable in locking and more accurate in feedback.
The technical scheme adopted by the invention for solving the technical problems is as follows: an adjustable and accurate feedback hip joint training device comprises a servo driving mechanism, a leg length matching mechanism, an angular displacement sensor and a leg binding band.
One end of the leg length matching mechanism is hinged on a sliding block and moves on a sliding rail parallel to the connecting line of the left hip joint and the right hip joint of the human body through the sliding block, and the angular displacement sensor acquires the rotating angle of the leg length matching mechanism at the hinged position; the other end of the leg length matching mechanism is adjusted in length through a guide rail and is provided with a position locking mechanism; one end of the servo driving mechanism is hinged on the bed board, and the other end of the servo driving mechanism is hinged with the leg length matching mechanism and used for driving the leg length matching mechanism to rotate; the leg bandage is used for fixing the thigh of a patient, the leg bandage is mounted at the other end of the leg length matching mechanism through the compensation guide rail, the compensation guide rail can freely move along the leg length direction, and the force sensor is mounted between the leg bandage and the compensation guide rail and used for measuring the force of the patient acting on the leg bandage.
The servo driving mechanism, the leg length matching mechanism, the angular displacement sensor and the leg binding bands are arranged at two ends of a sliding rail which is parallel to the connecting line of the left hip joint and the right hip joint of the human body in a bilateral symmetry mode.
The leg length matching mechanism comprises a guide rail, a sliding block and a connecting plate, one end of the connecting plate is hinged with the fixed block through a bearing seat, the fixed block is fixed on the sliding block, and the sliding block moves on the sliding rail to adjust the distance between thighs; there is the fixed interval pinhole position slider both sides, and different pinholes are fixed to correspond different gears, correspond thigh length adjustment gear according to different height patients.
The angular displacement sensor is fixed with the bearing seat.
The hinge joint of the leg length matching mechanism and the sliding block is provided with an angle limiting device for mechanically limiting the maximum and minimum rotating angles of the leg length matching mechanism.
The force sensor collects tension force to feed back human body force and pressure to feed back human body spasm.
The invention has the beneficial effects that: a draw forth patient's motion angle and the circumstances of having an effect that can be more accurate through power, the accurate feedback of angle displacement sensor, satisfies patient's hip joint and marks time the motion rehabilitation training needs for patient's lower limbs rehabilitation training, realizes marking time the training and makes the biggest recovered effect in patient earlier stage, matches gear guide rail, shank interval guide rail through adjusting, makes the most comfortable training of marking time of patient.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a perspective view of the exercise apparatus;
FIG. 3 is a front view of the exercise apparatus;
FIG. 4 is a top view of the exercise device;
FIG. 5 is a schematic illustration of the leg length matching adjustment of the exercise device;
fig. 6 is a schematic diagram of a double four-bar linkage.
Detailed Description
The present invention will be further described with reference to the following drawings and examples, which include, but are not limited to, the following examples.
The invention provides an adjustable and accurate feedback hip joint training device, which consists of a hip joint training part, a bed board bracket and a bed surface, wherein the training device and a servo drive are fixed on the bed board bracket, the training device and the servo drive form a four-bar structure for driving the training device to realize reciprocating motion, legs of a human body are connected with the training device through a binding band, the training device drives the legs to perform reciprocating stepping training by reciprocating motion, the training device is provided with three guide rails, one guide rail is provided with a locking mechanism for adjusting gears matched with the leg lengths of different patients and locking, the other guide rail is used for compensating the mechanism elongation in the leg motion process, the other guide rail is used for transversely adjusting the space between the left thigh and the right thigh of the human body, an angular displacement sensor is arranged on the guide rail matched with the leg length of the patient, the leg motion angle is accurately fed back through the mechanism relationship, and a force, the thigh interval adjusting guide rail is adaptive to matching adjustment of different crowds, and the comfort of rehabilitation exercise is improved.
The embodiment of the invention is shown in figure 1 and consists of a hip joint training part 1, a bed plate bracket 2 and a bed surface 3, wherein the hip joint training device 1 fixes the top of the bed plate bracket 2, and the bed surface 3 is hinged with the top of the bed plate bracket 2 to realize the fixation of the bed surface 3.
As shown in figures 2, 3, 4 and 5, the fixed end of a servo driving mechanism 1-5 is hinged on a bed board 2 through a pin shaft 1-13, the movable end of the servo driving mechanism 1-5 is hinged with a connecting plate 1-3-3 in a leg length matching mechanism 1-3 through a pin shaft 1-14, the connecting plate 1-3-3 in the leg length matching mechanism 1-3 is hinged with a fixed block 1-9 through a bearing seat 1-12, the fixed block 1-9 is fixed on a sliding block, the thigh space can be adjusted by moving the sliding block left and right on a sliding rail 1-11, an angular displacement sensor 1-4 is fixed with the bearing seat 1-12 and can rotate back and forth along with the servo driving mechanism 1-5, and an angle limit 1-10 is added at the mechanism movement position for mechanically limiting the maximum and minimum stepping movement angles, the leg length matching mechanism consists of a guide rail 1-3-1, a sliding block 1-3-2 and a connecting plate 1-3-3, pin holes with fixed intervals are arranged on two sides of the sliding block 1-3-2, different pin holes are fixedly corresponding to different gears, 4 gears are totally arranged on 4 pin holes, a rotating handle 1-8 and a spring pin shaft 1-7 are connected with the guide rail 1-3-1, positive pressure plays a role in fixing the sliding block 1-3-2 when the rotating handle 1-8 is screwed down, the rotating handle 1-8 is loosened when in use, the spring pin shaft 1-7 is pulled out, the gear is adjusted according to the corresponding thigh length (the distance between a shin bone joint and a large rotor) of patients with different heights, then the spring pin shaft 1-7 is locked, the rotating handle 1-8 is simultaneously screwed down, a compensation guide rail 1-6 in figure 6 is connected with the middle of the leg fixedly as a right angle, during reciprocating rotation, because human muscle stretches out and draws back and the mechanism right angle can not change, so need reciprocating stretching out and drawing back in this compensation guide rail 1-6 reciprocating rotation motion, install force sensor 1-2 between shank bandage 1-1 and the compensation guide rail 1-6 for human effort is fed back in real time to equipment operation in-process, send forth force to the human body through force sensor pulling force feedback, human spasm through pressure feedback, when equipment detects human spasm, stop training immediately, the recovered medical practitioner can be according to the progressive optimization rehabilitation scheme of data feedback, satisfy patient's hip joint motion rehabilitation training needs.
Fig. 6 is a schematic diagram of the training device, wherein an angle alpha is a rotation angle of the training device, an angle beta is a leg movement angle, the schematic diagram is two combined four-bar mechanisms, 1-12 are large rotors, the leg movement angle beta can be calculated in real time according to the angle alpha fed back by the angular displacement sensor 1-4 through the mechanism physical relationship designed by the mechanism, before the device is used by a patient, a leg bandage 1-1 is connected with the thigh of the patient, a rehabilitee manually simulates stepping on the thigh of the patient, the minimum and maximum leg movement angles of the patient are checked, then the maximum and minimum values are set by the system, the whole movement is closed-loop control, and the device is safer, more reliable, more accurate and more effective.
Claims (6)
1. The utility model provides an adjustable, accurate feedback's hip joint trainer, includes servo drive mechanism, leg length matching mechanism, angle displacement sensor and shank bandage, its characterized in that: one end of the leg length matching mechanism is hinged on a sliding block and moves on a sliding rail parallel to the connecting line of the left hip joint and the right hip joint of the human body through the sliding block, and the angular displacement sensor acquires the rotating angle of the leg length matching mechanism at the hinged position; the other end of the leg length matching mechanism is adjusted in length through a guide rail and is provided with a position locking mechanism; one end of the servo driving mechanism is hinged on the bed board, and the other end of the servo driving mechanism is hinged with the leg length matching mechanism and used for driving the leg length matching mechanism to rotate; the leg bandage is used for fixing the thigh of a patient, the leg bandage is mounted at the other end of the leg length matching mechanism through the compensation guide rail, the compensation guide rail can freely move along the leg length direction, and the force sensor is mounted between the leg bandage and the compensation guide rail and used for measuring the force of the patient acting on the leg bandage.
2. The adjustable, accurate feedback hip exercise device according to claim 1, wherein: the servo driving mechanism, the leg length matching mechanism, the angular displacement sensor and the leg binding bands are arranged at two ends of a sliding rail which is parallel to the connecting line of the left hip joint and the right hip joint of the human body in a bilateral symmetry mode.
3. The adjustable, accurate feedback hip exercise device according to claim 1, wherein: the leg length matching mechanism comprises a guide rail, a sliding block and a connecting plate, one end of the connecting plate is hinged with the fixed block through a bearing seat, the fixed block is fixed on the sliding block, and the sliding block moves on the sliding rail to adjust the distance between thighs; there is the fixed interval pinhole position slider both sides, and different pinholes are fixed to correspond different gears, correspond thigh length adjustment gear according to different height patients.
4. The adjustable, accurate feedback hip exercise device according to claim 1, wherein: the angular displacement sensor is fixed with the bearing seat.
5. The adjustable, accurate feedback hip exercise device according to claim 1, wherein: the hinge joint of the leg length matching mechanism and the sliding block is provided with an angle limiting device for mechanically limiting the maximum and minimum rotating angles of the leg length matching mechanism.
6. The adjustable, accurate feedback hip exercise device according to claim 1, wherein: the force sensor collects tension force to feed back human body force and pressure to feed back human body spasm.
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CN202020911161.7U CN212369255U (en) | 2020-05-27 | 2020-05-27 | Adjustable and accurate feedback hip joint training device |
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CN202020911161.7U CN212369255U (en) | 2020-05-27 | 2020-05-27 | Adjustable and accurate feedback hip joint training device |
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