CN106377390B - A kind of link-type foot rehabilitation institution - Google Patents

Abstract

The patent of the present invention discloses a link type foot rehabilitation mechanism, which relates to the field of medical care. Including drive unit, base, box, foot rehabilitation unit, transmission unit. The drive unit includes a drive motor, a reducer, and a clutch; the foot rehabilitation unit includes a front foot pedal and a rear foot pedal; the transmission unit includes a drive crank, a front connecting rod, a rear connecting rod, and a slide rail mechanism. Driven by the motor, the output of the reducer drives the drive crank to rotate reciprocally within a certain angle, the drive crank drives the front connecting rod, and the rear connecting rod moves in the vertical direction, thereby driving the linkage mechanism consisting of the front pedal and the rear pedal to rotate. Drive the patient's foot to perform flexion and extension exercises. The invention has a simple structure, can be used in conjunction with lower limb rehabilitation equipment, and can perform both passive and active training.

Description

A link type foot rehabilitation mechanism

technical field

The patent of the present invention relates to a link type foot rehabilitation mechanism, which belongs to the field of medical care.

Background technique

With the improvement of living standards, people's life has become comfortable and comfortable, but the existing health problems of the lower limbs are becoming more and more serious. Among them, the health of the feet is often neglected, and finally develops into serious diseases. Now, whether it is a working family or a laborer engaged in physical work, some problems of feet and ankles are common, and they are increasing at a very fast rate every year.

When restoring the patient's health through the transmission system, the posture of the affected limb is becoming more and more mainstream. The rod structure has always been favored by designers because of its simple structure and good reliability. Nowadays, there are many lower limb rehabilitation medical devices on the market, the most common It is also the best-selling massage chair, but there are many deficiencies in this type of equipment, and there is no effective treatment for the patient's foot and ankle. In fact, these massage devices can only play a simple role in relaxing the body. There is still a big gap in the level of treatment of rehabilitation diseases.

Contents of the invention

In view of the above problems, the technical problem to be solved by the patent of the present invention is to provide a link type foot rehabilitation mechanism.

A connecting rod type foot rehabilitation mechanism patented by the present invention, which includes a base, a box body, a flange frame, a guide rail, a driving motor, a reducer, a clutch, a driving crank, a front connecting rod, a rear connecting rod, an intermediate shaft, a sliding block, front foot pedal, rear foot pedal, foot fixing belt, ankle fixing unit, slider guide rail mechanism, rotating shaft, rotating shaft seat, adjustment rod, extension rod, ankle fixing sleeve, adaptation rod, adjustment seat, Slider seat, connecting shaft, cylindrical slider. It is characterized in that: a box is installed on the base, the flange frame is fixed on the base with bolts, the driving motor is installed on the flange frame, the driving motor is connected with the reducer, the reducer is connected with the clutch, the output end of the clutch is connected with the drive crank Flat key connection, the two ends of the driving crank are respectively connected to the front connecting rod through the intermediate shaft, and the rear connecting rod is movably connected, the other end of the front connecting rod is hinged to the front foot pedal, the other end of the rear connecting rod is hinged to the rear foot pedal, and the front foot pedal is connected to the rear foot pedal. The rear foot pedal is hinged, the front foot pedal is connected with the box body through a pair of slider guide rail mechanisms, and the rear foot pedal is connected with the box body through a pair of slider guide rail mechanisms.

As a preference, the slider guide rail mechanism of a link type foot rehabilitation mechanism is composed of sliders and guide rails, and the four sliders are respectively installed on the bottom surface of the front foot pedal and the rear foot pedal, and the four guide rails are installed on the inner wall of the box.

As a preference, a rotating shaft is installed on the front foot pedal of the link type foot rehabilitation mechanism, and the rotating shaft cooperates with the rotating shaft seat at the fixed position of the box body.

Preferably, the rear link of the link type foot rehabilitation mechanism is composed of an adjustment rod and an extension rod, and the adjustment rod is sleeved on the outside of the extension rod.

As a preference, the ankle fixing unit of the link type foot rehabilitation mechanism is composed of an ankle fixing sleeve and an adapting rod, the ankle fixing sleeve is connected with the adapting rod, and the adapting rod is connected with the adjusting seat on the rear foot pedal connect.

Preferably, the foot fixing belt of the above-mentioned link type foot rehabilitation mechanism is installed on the front foot pedal, and the foot fixing belt has adjustment holes.

As a preference, there are two symmetrical sets of drive crank, front connecting rod, rear connecting rod and slider rail mechanism in the device; the slider is connected by a slider seat, Shaft, composed of cylindrical sliders. The slider seat is connected on the front foot pedal and the rear foot pedal by bolts, the connecting shaft is fixedly connected on the slider seat, and the end of the connecting shaft is tapped with an external thread to connect with the cylindrical slider.

The beneficial effects of the patent of the present invention are:

1. The length of the rear link of the patent of this invention can be adjusted by the extension rod and the adjustment rod, which can meet the needs of patients with different foot lengths.

2. The distance between the ankle fixing unit of the patent of the present invention and the front foot pedal can be adjusted by the adapting rod and the adjusting seat, which can satisfy patients with different foot lengths.

3. The patent of the present invention is driven by a drive motor, which drives the drive crank to rotate reciprocally within a certain angle. The drive crank drives the front connecting rod, and the rear connecting rod moves in the vertical direction, thereby driving the front pedal and the linkage mechanism composed of the rear pedal to rotate. , can drive patients to carry out normal foot gait training, or exercise foot muscle strength, joint mobility and coordination rehabilitation training.

4. The patent of the present invention uses the clutch to control the output of the drive motor torque to realize the conversion between the active mode and the passive mode.

Description of drawings:

For ease of illustration, the present invention is described in detail by the following specific implementations and accompanying drawings.

Fig. 1 is a schematic diagram of the overall structure of the patent of the present invention;

Fig. 2 is a schematic diagram of the structure of the patent of the present invention looking up

Fig. 3 is a schematic diagram of the rotating shaft of the front foot pedal;

Figure 4 is a schematic diagram of the slider guide rail mechanism;

In the figure: 1-base, 2-box, 3-flange, 4-rail, 5-drive motor, 6-reducer, 7-clutch, 8-drive crank, 9-front connecting rod, 10-rear Link, 11-intermediate shaft, 12-slider, 13-front foot pedal, 14-rear foot pedal, 15-foot fixing belt, 16-ankle fixing unit, 17-slider guide rail mechanism, 18-rotation Shaft, 19-rotating shaft seat, 20-adjusting rod, 21-extending rod, 22-ankle fixing sleeve, 23-adapting rod, 24-adjusting seat, 25-slider seat, 26-connecting shaft, 27-cylindrical slide piece.

Detailed ways:

In order to make the object, technical solution and advantages of the present invention clearer, the present invention is described below through specific embodiments shown in the accompanying drawings. It should be understood, however, that these descriptions are exemplary only and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

As shown in the figure, this specific embodiment adopts the following technical solutions: a link type foot rehabilitation mechanism which includes a base 1, a box body 2, a flange frame 3, a guide rail 4, a driving motor 5, a reducer 6, and a clutch 7 , driving crank 8, front connecting rod 9, rear connecting rod 10, intermediate shaft 11, slider 12, front foot pedal 13, rear foot pedal 14, foot fixing belt 15, ankle fixing unit 16, slider rail mechanism 17, rotating shaft 18, rotating shaft seat 19, adjusting rod 20, stretch out rod 21, ankle fixed sleeve 22, adapt to rod 23, adjusting seat 24, slide block seat 25, connecting shaft 26, cylinder slide block 27. It is characterized in that a box body 2 is installed on the base 1, the flange frame 3 is fixed on the base 1 with bolts, the drive motor 5 is installed on the flange frame 3, the drive motor 5 is connected with the reducer 6, the reducer 6 is connected with the clutch 7 is connected, the output end of the clutch 7 is connected with the drive crank 8 with a flat key, and the two ends of the drive crank 8 are respectively connected to the front connecting rod 9 and the rear connecting rod 10 through the intermediate shaft 11, and the other end of the front connecting rod 9 is connected to the front foot pedal 13 Hinged, the other end of the rear link 10 is hinged with the rear foot pedal 14, the front foot pedal 1 is hinged with the rear foot pedal 14, the front foot pedal 13 is connected with the box body 2 through a pair of slider guide rail mechanisms 17, and the rear foot pedal 14 is connected with box body 2 by a pair of slide block guide rail mechanism 17; Slide block guide rail mechanism 17 is made up of slide block 12, guide rail 4, and four slide blocks 12 are respectively installed on front foot pedal 13, on the side of rear foot pedal 14 , the four guide rails 4 are installed on the inner wall of the box body 2; a rotating shaft 18 is installed on the front foot pedal, and the rotating shaft 18 cooperates with the rotating shaft seat 19 on the fixed position of the box body 2; the rear connecting rod 10 is adjusted by the adjusting rod 20, The extension rod 21 is composed of the extension rod 20, and the adjustment rod 20 is set on the outside of the extension rod 21; the ankle fixing unit 16 is composed of an ankle fixing sleeve 22 and an adaptation rod 23, and the ankle fixing sleeve 22 is connected with the adaptation rod 23, and the adaptation rod 23 is connected with the The adjustment seat 24 on the foot pedal 14 is connected; the foot fixing belt 15 is installed on the front foot pedal 13, and there are adjustment holes on the foot fixing belt 15; the drive crank 8, the front connecting rod 9, the rear connecting rod 10 and the slide block Rail mechanism 17 has two sets of left and right symmetry in this equipment; The slider seat 25 is connected on the front foot pedal 13 and the rear foot pedal 14 by bolts, the connecting shaft 26 is fixedly connected on the slider seat 25, and the connecting shaft 26 ends are tapped with external threads to be connected with the cylindrical slider 27.

The working principle of the specific embodiment of the patent of the present invention is: the patient sits on a sofa or a chair, the forefoot steps on the front foot pedal 13, is fixed by the foot fixing belt 15, and the back foot falls naturally, and the ankle fixing unit 16 is adjusted until The heel is closely attached to the ankle fixing unit 16, and the drive motor 5 is started, and the torque output by the drive motor 5 is transmitted to the drive crank 8 through the reducer 6 and the clutch 7, which drives the drive crank 8 to rotate reciprocally within a certain angle, thereby driving the front The connecting rod 9 and the rear connecting rod 10 move in the vertical direction, thereby driving the front foot pedal 13, and the slide block 12 on the rear foot pedal 14 slides along the guide rail 4 to realize that the front foot pedal 13 rotates around the rotation shaft 18, and the rear foot pedal 13 rotates around the rotation shaft 18. The lower pedal 14 rotates relative to the front foot pedal 13. In the active mode, the drive motor 5 does not output torque under the action of the clutch 7, and the patient actively steps on the front foot pedal 13 and the rear foot pedal 14 to realize the rehabilitation of the foot and ankle.

The basic principles and main features of the patent of the present invention and the advantages of the patent of the present invention have been shown and described above. Those skilled in the industry should understand that the patent of the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the patent of the present invention. Without departing from the spirit and scope of the patent of the present invention, the present invention The patent also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention patent. The scope of protection required by the patent for the present invention is defined by the appended claims and their equivalents.

Claims (1)

1. A link type foot rehabilitation mechanism, which includes a base (1), a box body (2), a flange frame (3), a drive motor (5), a reducer (6), a clutch (7), a drive Crank (8), Front Link (9), Rear Link (10), Intermediate Shaft (11), Front Foot Plate (13), Rear Foot Plate (14), Foot Strap (15), Ankle The fixed unit (16), the slider rail mechanism (17), the rotating shaft (18), the rotating shaft seat (19), and the adjusting seat (24); it is characterized in that: the base (1) is equipped with a box (2), the method The flange frame (3) is fixed on the base (1) with bolts, the driving motor (5) is installed on the flange frame (3), the driving motor (5) is connected with the reducer (6), and the reducer (6) is connected with the clutch (7) connection, the output end of the clutch (7) is connected with the drive crank (8) with a flat key, one end of the drive crank (8) is hinged with the front connecting rod (9) through the intermediate shaft (11), and the other end of the drive crank (8) The intermediate shaft (11) is flexibly connected to the rear link (10), the other end of the front link (9) is hinged to the front foot pedal (13), and the other end of the rear link (10) is hinged to the rear foot pedal (14) , the front foot pedal (13) is hinged with the rear foot pedal (14), the left and right sides of the front foot pedal (13) are respectively connected with the box body (2) through a slider guide rail mechanism (17), and the rear foot pedal ( The left and right sides of 14) are respectively connected with the box body (2) through a slider guide rail mechanism (17); the slider guide rail mechanism (17) is composed of a slider (12) and a guide rail (4), and the slider (12) is installed On the side of the front foot pedal (13) or the rear foot pedal (14), the guide rail (4) is correspondingly installed on the inner wall of the casing (2); the front foot pedal (13) is equipped with a rotating shaft (18), The rotating shaft (18) cooperates with the rotating shaft seat (19) on the fixed position of the box body (2); the rear connecting rod (10) is composed of an adjusting rod (20) and an extending rod (21), and the adjusting rod (20) is set On the outside of the extension rod (21); the ankle fixation unit (16) is composed of an ankle fixation sleeve (22) and an adaptation rod (23), the ankle fixation sleeve (22) is connected with the adaptation rod (23), and the adaptation rod ( 23) Connect with the adjustment seat (24) on the rear foot pedal (14); the foot fixing belt (15) is installed on the front foot pedal (13), and there is an adjustment hole on the foot fixing belt (15); the slider (12) consists of a slider seat (25), a connecting shaft (26), and a cylindrical slider (27); the slider seat (25) is connected to the front foot pedal (13) or the rear foot pedal (14) by bolts , the connecting shaft (26) is fixedly connected on the slider seat (25), and the end of the connecting shaft (26) is tapped with an external thread to connect with the cylindrical slider (27); the cylindrical slider (27) can slide along the corresponding guide rail.