Bedside ankle joint training equipment

Abstract

A bedside ankle joint training device comprises a base, a lifting stand column is fixed to the base, the action end of the lifting stand column is fixedly connected with a mounting frame, an output shaft of a motor is connected with a speed reducer, the speed reducer is fixedly connected to the mounting frame, and an output shaft of the speed reducer is fixedly connected with a driving gear. A driven half shaft A and a driven half shaft B which are coaxial are further rotationally installed on the installation frame, the driven half shaft A is parallel to an output shaft of the speed reducer, a driven gear meshed with the driving gear is fixedly installed at the end of the driven half shaft A, and the driven half shaft A and the driven half shaft B are fixedly connected with a torque sensor. The end of the driven half shaft B is detachably and fixedly connected with a foot crutch through a screw, the foot crutch is fixedly connected with a foot support, and the torque sensor and the motor are both connected to a controller. The training equipment is simple in structure, can be used beside a bed for training in a sitting posture and a prone posture, and meets the training requirements of different patients.

Description

TECHNICAL FIELD

[0001] The utility model discloses a rehabilitation training equipment, especially designs a bedside ankle joint training equipment belongs to rehabilitation training mechanical technical field. BACKGROUND

[0002] In sports activities and daily life, ankle injury may occur. Ankle injury not only causes pain to patients, but also seriously interferes with the normal life of people, and even affects the mental health of people. In addition to surgical treatment and conservative treatment, auxiliary ankle function training during the treatment process can ensure the movement function of the ankle and speed up the recovery process. There are various devices for training the ankle in the existing devices. For example, CN 115721527A (ankle joint) provides a technical solution to realize the rehabilitation training of the ankle joint. However, the device has a complex structure, high cost, and can only meet the training needs of patients in a sitting position, and cannot meet the training needs of patients in a lying position. The ankle joint training device provided by CN106618968A has the same limitation. In order to detect the output torque during training, the output current of the motor is generally detected. This detection method is greatly affected by the transmission gear, has poor accuracy, is not conducive to the protection of patients, and is not conducive to grasping the actual situation of the ankle joint of patients. SUMMARY

[0003] The utility model discloses a bedside ankle joint training equipment which overcomes the above-mentioned problems in the prior art.

[0004] To achieve the purpose of the utility model, the following technical solutions are adopted: a bedside ankle joint training equipment includes a base, a lifting column is fixed on the base, the action end of the lifting column is fixedly connected with a mounting frame, the output shaft of a motor is connected with a speed reducer, the speed reducer is fixedly connected to the mounting frame, the output shaft of the speed reducer is fixedly connected with a driving gear, a coaxial driven half shaft A and a driven half shaft B are also rotatably installed on the mounting frame, the driven half shaft A is parallel to the output shaft of the speed reducer, the end of the driven half shaft A is fixedly installed with a driven gear meshing with the driving gear, the driven half shaft A and the driven half shaft B are fixedly connected with a torque sensor, the end of the driven half shaft B is detachably fixedly connected with a foot crank through a screw, the foot crank is fixedly connected with a foot support, and the torque sensor and the motor are connected to a controller.

[0005] Further, the driven half shaft A and the driven half shaft B are tightly fitted on the inner ring of the corresponding bearing, the outer ring of the bearing is tightly fitted on the corresponding bearing seat, and the bearing seat is fixedly connected to the mounting frame.

[0006] Further, a plurality of connecting screw holes are formed on the bearing seat side wall of the driven half shaft B, the plurality of connecting screw holes are circularly distributed with the driven half shaft B as the center, two stop blocks are fixedly connected in the corresponding connecting screw holes through bolts, the positions of the two stop blocks are adjusted to adjust the angle between the two stop blocks, and the movable limiting block is fixedly connected to the driven half shaft B and located between the two stop blocks.

[0007] The positive beneficial technical effect of the utility model lies in: the training equipment is simple in structure and low in cost, can be used for training in sitting position and lying position beside a bed, meets the training needs of different patients, and has multiple protections, which are specifically explained in combination with the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is one of the schematic views of the utility model.

[0009] Figure 2 is the second schematic view of the utility model. DETAILED DESCRIPTION

[0010] In order to more fully explain the implementation of the utility model, the implementation examples of the utility model are provided. These implementation examples are only the elaboration of the utility model and do not limit the scope of the utility model.

[0011] The utility model is further explained in detail in combination with the drawings, and the marks in the drawings are as follows: 1: base; 2: lifting column; 3: mounting frame; 4: motor; 5: speed reducer; 6: driven half shaft A; 7: driven half shaft B; 8: driving gear; 9: driven gear; 10: torque sensor; 11: foot crank; 12: movable limiting block; 13: stop block; 14: foot support; 15: screw.

[0012] The motor in the utility model adopts a servo motor; the amplitude of training is controlled by controlling the forward and reverse angle of the motor, and the forward and reverse angle control of the servo motor is a known technology.

[0013] As shown in the drawings, a bedside ankle joint training device comprises a base 1, a lifting column 2 is fixed on the base, a mounting frame 3 is fixedly connected to the action end of the lifting column 2, a motor 4 is connected to the output shaft of the lifting column 2, a speed reducer 5 is fixedly connected to the mounting frame, a driving gear 8 is fixedly connected to the output shaft of the speed reducer, coaxial driven half shafts A 6 and B 7 are rotatably mounted on the mounting frame, the driven half shaft A is parallel to the output shaft of the speed reducer, the end of the driven half shaft A is fixedly mounted with a driven gear 9 engaged with the driving gear, a torque sensor 10 (also called a torque sensor) is fixedly connected to the driven half shafts A and B, the torque sensor can adopt a double key groove static torque sensor JNNT-S-100N.m, the end of the driven half shaft B is detachably fixedly connected with a foot crank 11 through a screw 15, the foot crank is fixedly connected with a foot support 14, and the torque sensor and the motor are connected to a controller. In the utility model, the torque sensor has multiple functions, one is that the torque sensor can collect the size of the torque in passive training, since the torque sensor is directly connected with the driven half shaft B, the measured data is accurate and reliable; two is that when the movable limit block collides with the stop block, the torque sensor can conveniently detect the information, the information of the torque sensor can control the motor to stop in time, so that the motor is prevented from being damaged; three is that the torque sensor can observe and detect the foot strength change of the patient in active training, so that the training effect is understood in time.

[0014] In the embodiment, the driven half shaft A 6 and the driven half shaft B 7 are tightly fitted on the inner rings of corresponding bearings, the outer rings of the bearings are tightly fitted on corresponding bearing seats, the bearing seats are fixedly connected to the mounting frame, a plurality of connecting screw holes are formed in the sidewall of the bearing seat of the driven half shaft B, the connecting screw holes are not shown in the drawings and are easy to understand, the plurality of connecting screw holes are circularly distributed with the driven half shaft B as the center, the two stop blocks 13 are fixedly connected in corresponding connecting screw holes through bolts, the positions of the two stop blocks are adjusted to adjust the angle between the two stop blocks, the movable limit block 12 is fixedly connected to the driven half shaft B and is located between the two stop blocks. The two stop blocks provide hard limit, when the driven half shaft B rotates, the movable limit block can only move within the angle range between the two stop blocks, so that the training amplitude is limited, and the user is prevented from being hurt due to the rotation amplitude being too large caused by the control failure of the motor. For different patients, the angle range of the hard protection can be adjusted by adjusting the angle between the two stop blocks.

[0015] When the device is converted between the sitting position and the lying position, the height is adjusted through the lifting column, and the installation angle of the foot crank is adjusted by removing the screw, so that the training in the lying position can be realized.

[0016] After the embodiments of the present application are described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the above patent application range and spirit, any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments all belong to the range of the technical scheme of the present application, and the present application is also not limited to the implementation modes of the examples shown in the specification.

Claims

1. A bedside ankle training device comprising a base, characterized in that: The base is fixed with a lifting column, the action end of the lifting column is fixedly connected with a mounting frame, the output shaft of the motor is connected with a speed reducer, the speed reducer is fixedly connected on the mounting frame, the output shaft of the speed reducer is fixedly connected with a driving gear, a coaxial driven half shaft A and a driven half shaft B are also rotatably installed on the mounting frame, the driven half shaft A is parallel to the output shaft of the speed reducer, the end of the driven half shaft A is fixedly installed with a driven gear engaged with the driving gear, the driven half shaft A and the driven half shaft B are fixedly connected with a torque sensor, the end of the driven half shaft B is detachably fixedly connected with a foot crank through a screw, the foot crank is fixedly connected with a foot support, the torque sensor and the motor are connected to a controller.

2. A bedside ankle training device according to claim 1, characterized in that: The driven half shaft A and the driven half shaft B are tightly fitted on the inner ring of the corresponding bearing, the outer ring of the bearing is tightly fitted on the corresponding bearing seat, and the bearing seat is fixedly connected with the mounting frame.

3. The bedside ankle training device of claim 1, wherein: A plurality of connecting screw holes are formed on the side wall of the bearing seat of the driven half shaft B, the plurality of connecting screw holes are circularly distributed with the driven half shaft B as the center, two blocks are fixedly connected in the corresponding connecting screw holes through bolts, the position of the two blocks can be adjusted to adjust the angle between the two blocks, and the movable limiting block is fixedly connected on the driven half shaft B and located between the two blocks.

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