CN107693302B - Rehabilitation chair for hand and foot synchronous exercise - Google Patents
Rehabilitation chair for hand and foot synchronous exercise Download PDFInfo
- Publication number
- CN107693302B CN107693302B CN201710976824.6A CN201710976824A CN107693302B CN 107693302 B CN107693302 B CN 107693302B CN 201710976824 A CN201710976824 A CN 201710976824A CN 107693302 B CN107693302 B CN 107693302B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 210000002414 leg Anatomy 0.000 description 21
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 206010033799 Paralysis Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 201000000585 muscular atrophy Diseases 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 208000020431 spinal cord injury Diseases 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus ; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0218—Drawing-out devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus ; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus ; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0274—Stretching or bending or torsioning apparatus for exercising for the upper limbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0119—Support for the device
- A61H2201/0138—Support for the device incorporated in furniture
- A61H2201/0149—Seat or chair
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/12—Driving means
- A61H2201/1207—Driving means with electric or magnetic drive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/14—Special force transmission means, i.e. between the driving means and the interface with the user
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/06—Arms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/10—Leg
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses a rehabilitation chair for hand and foot synchronous exercise. The existing auxiliary equipment can not be switched back and forth between sitting exercise and standing exercise, and hands and feet can not be synchronously exercised. The invention comprises a chair body, a cushion plate, a backrest plate, a standing auxiliary mechanism, a driving mechanism, an arm stretching mechanism and a leg lifting mechanism. The standing auxiliary mechanism comprises an electric push rod, a sliding plate, a fixed plate, a first connecting plate, a second connecting plate, a first hinge plate group and a second hinge plate group. The driving mechanism comprises a motor, an adjustable crankshaft, a first connecting rod, a second connecting rod, a third connecting rod, a first sliding block, a second sliding block and a third sliding block. The arm stretching mechanism comprises a rope, a first pulley, a second pulley, a support column and a handle. The leg lifting mechanism comprises a rack, a cylindrical gear, a driving shaft, a driving bevel gear and two lifting assemblies. The invention can exercise hands and feet of patients simultaneously, and has higher exercise efficiency.
Description
Technical Field
The invention belongs to the technical field of rehabilitation machines, and particularly relates to a rehabilitation chair for hand and foot synchronous exercise.
Background
For patients suffering from brain, spinal cord injury, stroke, muscular atrophy, physiological function degeneration or paralysis, the rehabilitation treatment work must be performed with the aid of related auxiliary equipment in addition to the medical auxiliary equipment for moving and positioning the body in daily life. Most of the existing auxiliary equipment can only independently carry out rehabilitation treatment on the hands or feet of a patient, and the rehabilitation efficiency is low. Moreover, the existing auxiliary equipment can only meet the requirements of sitting exercise or standing exercise of patients, can not be switched back and forth between sitting exercise and standing exercise, can not exercise hands and feet synchronously, and can not assist the patients to finish the requirements of sitting to standing. Therefore, it is important to design a rehabilitation chair that can exercise hands and feet simultaneously and can switch back and forth between sitting and standing exercises.
Disclosure of Invention
The invention aims to provide a rehabilitation chair for hand and foot synchronous exercise.
The invention comprises a chair body, a cushion plate, a backrest plate, a standing auxiliary mechanism, a driving mechanism, an arm stretching mechanism and a leg lifting mechanism. One end of the cushion plate is hinged with the chair body, and the other end is hinged with the bottom end of the backrest plate.
The standing auxiliary mechanism comprises an electric push rod, a sliding plate, a fixed plate, a first connecting plate, a second connecting plate, a first hinge plate group and a second hinge plate group. The first hinge plate group comprises a first hinge plate, a second hinge plate, a third hinge plate and a fourth hinge plate which are sequentially hinged into a parallelogram from head to tail. The second hinge plate group comprises a fifth hinge plate, a sixth hinge plate, a seventh hinge plate and an eighth hinge plate which are sequentially hinged into a parallelogram from head to tail. The hinge shaft of the first hinge plate and the hinge shaft of the second hinge plate are fixed at one end of the first connecting plate. The hinge shaft of the fifth hinge plate and the hinge shaft of the sixth hinge plate are fixed at the other end of the first connecting plate. And the hinge shafts of the third hinge plate and the fourth hinge plate are fixed at one end of the second connecting plate. And the hinge shafts of the seventh hinge plate and the eighth hinge plate are fixed at the other end of the second connecting plate. The hinge shafts of the second hinge plate and the third hinge plate and the hinge shafts of the fifth hinge plate and the sixth hinge plate are fixed on the sliding plate. The hinge shafts of the first hinge plate and the fourth hinge plate and the hinge shafts of the fifth hinge plate and the eighth hinge plate are fixed on the fixed plate. The shell of the electric push rod is fixed with the first connecting plate, and the push rod is fixed with the second connecting plate. The fixed plate is fixed with the backboard; the sliding plate and the chair body form a sliding pair.
The driving mechanism comprises a motor, an adjustable crankshaft, a first connecting rod, a second connecting rod, a third connecting rod, a first sliding block, a second sliding block and a third sliding block. The adjustable crankshaft comprises a first shaft section, a second shaft section, a third shaft section, a fourth shaft section, a first crank, a second crank, a third crank, a first stud, a second stud and a bidirectional nut. The first crank consists of a first hinge shaft, two first bent plates and two first adjusting plates. The two first curved plates and the two first adjusting plates respectively form a sliding pair. Opposite side surfaces of the two first adjusting plates are respectively fixed with two ends of the first hinge shaft. The second crank consists of a second hinge shaft, two second curved plates and two second adjusting plates. The two second curved plates and the two second adjusting plates respectively form sliding pairs. Opposite side surfaces of the two second adjusting plates are respectively fixed with two ends of the second hinge shaft. The two first adjusting plates close to the second crank are fixed with the first stud. The second adjusting plate is fixed with the second stud near the first crank. And the external threads on the first stud and the second stud are opposite in rotation direction. And two ends of the inner wall of the bidirectional nut are provided with internal threads with opposite screwing directions. The first stud and the second stud are respectively in threaded connection with two ends of the inner wall of the bidirectional nut. The third crank consists of a third hinge shaft and two third curved plates. Opposite side surfaces of the two third curved plates are respectively fixed with two ends of the third hinging shaft.
One end of the first shaft section is supported on the chair body, and the other end of the first shaft section is fixed with a first curved plate in the first crank. The first shaft section is driven by a motor. The other first curved plate in the first crank is fixed with one end of the second shaft section. The other end of the second shaft section is fixed with a second curved plate in the second crank. The other second curved plate in the second crank is fixed with one end of the third shaft section. The other end of the third shaft section is fixed with a third curved plate in a third crank. The other third curved plate in the third crank is fixed with one end of the fourth shaft section. The other end of the fourth shaft section is supported on the chair body. One end of the first connecting rod and the first hinging shaft form a revolute pair, and the other end of the first connecting rod is hinged with the first sliding block. The first sliding block and the chair body form a sliding pair. One end of the second connecting rod and the second hinging shaft form a revolute pair, and the other end of the second connecting rod is hinged with the second sliding block. The second sliding block and the chair body form a sliding pair. One end of the third connecting rod and the third hinging shaft form a revolute pair, and the other end of the third connecting rod is hinged with the third sliding block. The third sliding block and the chair body form a sliding pair.
The arm stretching mechanism comprises a rope, a first pulley, a second pulley, a support column and a handle. Two first pulleys arranged coaxially are supported on the chair body. The bottom ends of the two support columns are fixed with the top end of the backboard. Two second pulleys arranged coaxially are respectively supported at the top ends of the two support columns. One end of each rope is respectively fixed with the first sliding block and the second sliding block, and the other end of each rope is respectively fixed with the two handles. The two ropes are respectively passed around the two first pulleys and are respectively passed around the two second pulleys.
The leg lifting mechanism comprises a rack, a cylindrical gear, a driving shaft, a driving bevel gear and two lifting assemblies. The rack is fixed with the third sliding block. The cylindrical gear and the drive bevel gear are fixed with a driving shaft supported on the chair body. The cylindrical gear is meshed with the rack. The lifting component comprises a driven bevel gear, a rotating shaft, a leg tying belt and a third hinge plate group. The driven bevel gear is fixed with a rotating shaft supported on the chair body. The third hinge plate group comprises a ninth hinge plate, a tenth hinge plate, an eleventh hinge plate and a twelfth hinge plate which are sequentially hinged into a parallelogram from head to tail. The ninth hinge plate arranged vertically is fixed with the chair body. The tenth hinge plate is fixed with the rotating shaft. The axis of the rotating shaft is collinear with the axes of the hinge shafts of the ninth hinge plate and the tenth hinge plate. And a legging belt is fixed on the eleventh hinging plate. The driven bevel gears in both lifting assemblies are engaged with the drive bevel gear.
Further, the indexing cone angle of the driving bevel gear and the two driven bevel gears is 45 degrees. The rack slides to the state of being far away from the adjustable crank shaft or slides to the state of being closest to the adjustable crank shaft, the tenth hinging plate in one third hinging plate group is in a horizontal state, and the tenth hinging plate in the other third hinging plate group is inclined upwards.
Further, the first shaft section, the second shaft section, the third shaft section and the fourth shaft section are coaxially arranged. The axes of the first hinge shaft, the second hinge shaft and the third hinge shaft are parallel and non-collinear with the axis of the first shaft section. The axes of the first hinge shaft and the second hinge shaft are not collinear, the distances from the axes of the first shaft section are equal, and the axes of the first hinge shaft, the second hinge shaft and the first shaft section are in the same plane.
Further, the chair body comprises a transverse plate, a vertical plate and supporting legs. One end of the transverse plate is fixed with the inner side surface of the vertical plate. Two corners of the bottom surface of the transverse plate, which is far away from the end of the vertical plate, are respectively fixed with the top ends of the two supporting legs. The bottom of two landing legs is equal to the bottom of riser high setting.
Further, two rows of fixing holes are formed in the inner side face of the vertical plate, and the two rows of fixing holes and the two pulley frames are detachably fixed respectively. Two first pulleys arranged coaxially are respectively supported on the two pulley frames.
Further, the motor is fixed with the chair body. An output shaft of the motor is fixed with the first shaft section.
Further, one end of the leg-tie belt is fixed with a hook-face magic tape, and the other end is fixed with a hair-face magic tape.
Further, the distance between the hinge shafts of the ninth hinge plate and the tenth hinge plate and the hinge shafts of the tenth hinge plate and the eleventh hinge plate is equal to 400mm.
Further, driven bevel gears in the two lifting assemblies are coaxially arranged.
Further, in a state where one of the handles moves to the highest point, the tenth hinge plate located on the same side as the handle is in a horizontal state.
The invention has the beneficial effects that:
1. the invention can exercise hands and feet of patients simultaneously, and has higher exercise efficiency.
2. The invention can switch back and forth between sitting exercise and standing exercise, the exercise forms are more various, and the exercise process is more interesting.
3. The invention can assist the exerciser to finish the actions from sitting to standing, and enhances the self-care ability of the patient in the exercise process.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a perspective view of the present invention after a user is assisted in standing;
FIG. 4 is a perspective view of a standing assist mechanism of the present invention;
FIG. 5 is a front view of a standing assist mechanism of the present invention;
FIG. 6 is a schematic diagram illustrating the assembly of a driving mechanism and a leg lifting mechanism according to the present invention;
FIG. 7 is a first schematic illustration of an adjustable crankshaft of the present invention;
FIG. 8 is a second schematic diagram of an adjustable crankshaft of the present invention;
fig. 9 is a perspective view of a leg lifting mechanism in accordance with the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, a rehabilitation chair for hand and foot synchronous exercise comprises a chair body 1, a cushion plate 2, a backrest plate 3, a standing auxiliary mechanism 4, a driving mechanism 5, an arm stretching mechanism 6 and a leg lifting mechanism 7. The chair body 1 comprises a transverse plate, a vertical plate and supporting legs. One end of the transverse plate is fixed with the inner side surface of the vertical plate. Two corners of the bottom surface of the transverse plate, which is far away from the end of the vertical plate, are respectively fixed with the top ends of the two supporting legs. The bottom of two landing legs is equal to the bottom of riser high setting. One end of the cushion plate 2 is hinged with the end of the top surface of the transverse plate, which is far away from the vertical plate, and the other end is hinged with the bottom end of the backboard 3. The top surface of the cushion plate 2 is used for sitting by a user.
As shown in fig. 1, 2, 3, 4 and 5, the standing assist mechanism 4 provided between the backboard 3 and riser includes an electric putter 4-1, a slide plate 4-2, a fixed plate 4-3, a first connecting plate 4-4, a second connecting plate 4-5, a first hinge plate group 4-6 and a second hinge plate group 4-7. The first hinge plate group 4-6 comprises a first hinge plate, a second hinge plate, a third hinge plate and a fourth hinge plate which are hinged into a parallelogram from end to end in sequence. The first hinge plate, the second hinge plate, the third hinge plate, and the fourth hinge plate are arranged counterclockwise in fig. 5. The second hinge plate group 4-7 comprises a fifth hinge plate, a sixth hinge plate, a seventh hinge plate and an eighth hinge plate which are hinged into a parallelogram from end to end in sequence. The fifth hinge plate, the sixth hinge plate, the seventh hinge plate, and the eighth hinge plate are arranged counterclockwise in fig. 5. The hinge shafts of the first hinge plate and the second hinge plate are fixed at one end of the first connecting plate 4-4. The hinge shafts of the fifth hinge plate and the sixth hinge plate are fixed at the other end of the first connecting plate 4-4. The hinge shafts of the third hinge plate and the fourth hinge plate are fixed at one end of the second connecting plate 4-5. The hinge shafts of the seventh hinge plate and the eighth hinge plate are fixed at the other end of the second connecting plate 4-5. The hinge shafts of the second hinge plate and the third hinge plate and the hinge shafts of the fifth hinge plate and the sixth hinge plate are fixed on the sliding plate 4-2. The hinge shafts of the first hinge plate and the fourth hinge plate and the hinge shafts of the fifth hinge plate and the eighth hinge plate are fixed on the fixed plate 4-3. The shell of the electric push rod 4-1 is fixed with the first connecting plate 4-4, and the push rod is fixed with the second connecting plate 4-5. The fixing plate 4-3 is fixed with the backboard 3. The sliding plate 4-2 and the vertical plate in the chair body 1 form a sliding pair. The expansion and contraction of the electric push rod 4-1 can enable the first hinge plate group 4-6 and the second hinge plate group 4-7 to move, the distance between the sliding plate 4-2 and the fixed plate 4-3 is adjusted, and then the cushion plate is pushed to move. The longer the push rod of the electric push rod 4-1 exposed to the outside is, the smaller the distance between the slide plate 4-2 and the fixed plate 4-3 is. Initially, the push rod of the electric push rod 4-1 is pushed out to a limit state so that the cushion plate contacts the top surface of the cross plate.
As shown in fig. 1, 2, 6, 7 and 8, the driving mechanism 5 includes a motor 5-1, an adjustable crankshaft, a first link 5-3, a second link 5-4, a third link 5-5, a first slider 5-6, a second slider 5-7 and a third slider 5-8. The motor 5-1 is fixed with the chair body 1. The adjustable crankshaft comprises a first shaft section 5-2, a second shaft section 5-9, a third shaft section 5-10, a fourth shaft section 5-11, a first crank 5-12, a second crank 5-13, a third crank 5-14, a first stud 5-15, a second stud 5-16 and a bidirectional nut 5-17. The first crank 5-12 consists of a first hinge shaft, two first curved plates and two first adjusting plates. The two first curved plates and the two first adjusting plates respectively form a sliding pair. Opposite side surfaces of the two first adjusting plates are respectively fixed with two ends of the first hinge shaft. The second crank 5-13 consists of a second hinge shaft, two second curved plates and two second adjusting plates. The two second curved plates and the two second adjusting plates respectively form sliding pairs. Opposite side surfaces of the two second adjusting plates are respectively fixed with two ends of the second hinge shaft. The two first adjusting plates close to the second crank 5-13 are fixed with the first stud 5-15. The second adjusting plate is fixed with the second stud 5-16 near the first crank 5-12. The first stud 5-15 is threaded in the opposite direction to the external threads on the second stud 5-16. The two ends of the inner wall of the two-way nut 5-17 are provided with internal threads with opposite screwing directions. The first stud 5-15 and the second stud 5-16 are respectively in threaded connection with two ends of the inner wall of the bidirectional nut 5-17. The bidirectional nut 5-17 is rotated, so that the first stud 5-15 and the second stud 5-16 move in opposite directions or move in opposite directions, the distance between the axes of the first hinge shaft and the second hinge shaft and the axis of the first shaft section 5-2 is further realized, and the amplitude of arm stretching movement is adjusted. The third crank 5-14 consists of a third hinge shaft and two third curved plates. Opposite side surfaces of the two third curved plates are respectively fixed with two ends of the third hinging shaft.
One end of the first shaft section 5-2 is supported on a vertical plate in the chair body 1 and is fixed with an output shaft of the motor 5-1, and the other end is fixed with a first curved plate in the first crank 5-12. The other first curved plate in the first crank 5-12 is fixed with one end of the second shaft section 5-9. The other end of the second shaft section 5-9 is fixed with a second crank plate in the second crank 5-13. The other second crank plate in the second crank 5-13 is fixed to one end of the third shaft section 5-10. The other end of the third shaft section 5-10 is fixed with a third crank plate in the third crank 5-14. Another third crank plate in the third crank 5-14 is fixed to one end of the fourth shaft section 5-11. The other end of the fourth shaft section 5-11 is supported on a riser in the chair body 1. The first shaft section 5-2, the second shaft section 5-9, the third shaft section 5-10 and the fourth shaft section 5-11 are coaxially arranged. The axes of the first hinge shaft, the second hinge shaft and the third hinge shaft are all parallel and non-collinear with the axis of the first shaft section 5-2. The axes of the first hinge shaft and the second hinge shaft are not collinear, and the distances from the axes of the first shaft section 5-2 are equal, and the axes of the first hinge shaft, the second hinge shaft and the first shaft section 5-2 are in the same plane. One end of the first connecting rod 5-3 and the first hinging shaft form a revolute pair, and the other end of the first connecting rod is hinged with the first sliding block 5-6. The first slide block 5-6 and the vertical plate form a sliding pair sliding along the vertical direction. One end of the second connecting rod 5-4 and the second hinging shaft form a revolute pair, and the other end of the second connecting rod is hinged with the second sliding block 5-7. The second sliding block 5-7 and the vertical plate form a sliding pair sliding along the vertical direction. One end of the third connecting rod 5-5 and the third hinging shaft form a revolute pair, and the other end of the third connecting rod is hinged with the third sliding block 5-8. The third sliding block 5-8 and the transverse plate form a sliding pair sliding along the horizontal direction. The rotating adjustable crankshaft drives the first slide block 5-6 and the second slide block 5-7 to slide up and down, and drives the third slide block 5-8 to slide horizontally. Because the first hinge shaft and the second hinge shaft are arranged at two sides of the axis of the first shaft section, the sliding directions of the first sliding block 5-6 and the second sliding block 5-7 are opposite, and further the staggered sliding of the first sliding block 5-6 and the second sliding block 5-7 is realized.
As shown in fig. 1, 2 and 3, the arm stretching mechanism 6 includes a rope 6-1, a first pulley 6-2, a second pulley 6-3, a support column 6-4, and a handle 6-5. Two rows of fixing holes are formed in the inner side face of the vertical plate, and the two rows of fixing holes and the two pulley frames are detachably fixed respectively. Two first pulleys 6-2 coaxially arranged are supported on the two pulley frames, respectively. By fixing the pulley frame with different fixing holes, the height of the handle 6-5 can be adjusted. The bottom ends of the two support columns 6-4 are fixed with the top end of the backboard 3. Two second pulleys 6-3 coaxially disposed are supported at the top ends of the two support columns 6-4, respectively. One end of the two ropes 6-1 is respectively fixed with the first sliding block 5-6 and the second sliding block 5-7, and the other end is respectively fixed with the two handles 6-5. The two ropes 6-1 are passed around the two first pulleys 6-2, respectively, and around the two second pulleys 6-3, respectively. The first sliding block 5-6 and the second sliding block 5-7 which slide in a staggered manner can pull the two ropes 6-1 to perform staggered movement, so that the staggered movement of the two handles 6-5 is realized, and the up-and-down staggered stretching movement of the two hands respectively held on the two handles 6-5 by a user is realized.
As shown in fig. 1, 2 and 9, the leg lifting mechanism 7 includes a rack gear 7-1, a cylindrical gear 7-2, a driving shaft 7-3, a drive bevel gear 7-4, and two lifting assemblies. The rack 7-1 is fixed with the third slide block 5-8. The cylindrical gear 7-2 and the drive bevel gear 7-4 are fixed with a driving shaft 7-3 supported on the bottom surface of the cross plate in the chair body 1. The drive shaft 7-3 is arranged vertically. The cylindrical gear 7-2 is engaged with the rack. The lifting assembly comprises a driven bevel gear 7-5, a rotating shaft 7-6, a legging belt 7-7 and a third hinge plate group. The driven bevel gear 7-5 is fixed with a rotation shaft 7-6 supported on the bottom surface of the cross plate in the chair body 1. The rotation shaft 7-6 is horizontally arranged. The third hinge plate group comprises a ninth hinge plate 7-8, a tenth hinge plate 7-9, an eleventh hinge plate 7-10 and a twelfth hinge plate 7-11 which are hinged into a parallelogram from head to tail in sequence. The ninth hinge plate 7-8 arranged vertically is fixed with the chair body 1. The tenth hinging plate 7-9 is fixed with the rotation shaft 7-6. The axis of the rotating shaft 7-6 is collinear with the axis of the hinge shafts of the ninth hinge plate 7-8 and the tenth hinge plate 7-9. Two legging straps 7-7 are secured to the eleventh hinging plate 7-10. One end of the legging belt 7-7 is fixed with a hook-face magic tape, and the other end is fixed with a hair-face magic tape. The leg of the user can be fixed with the eleventh hinge plate 7-10 by encircling the leg of the user with the leg-tying band 7-7 and attaching the velcro. The distance between the hinge shafts of the ninth hinge plate 7-8 and the tenth hinge plate 7-9 and the hinge shafts of the tenth hinge plate 7-9 and the eleventh hinge plate 7-10 is equal to 400mm. The 400mm spacing approximates the length of a human thigh. So that the third hinge plate group can simulate the leg lifting action of a human body during sitting at the end to the greatest extent. Since the ninth hinge plate 7-8, the tenth hinge plate 7-9, the eleventh hinge plate 7-10 and the twelfth hinge plate 7-11 constitute a parallelogram. The eleventh hinge plate 7-10 is horizontal with the ninth hinge plate 7-8 at all times, i.e. kept in a vertical state.
The driven bevel gears 7-5 in the two lifting assemblies are respectively positioned at two sides of the drive bevel gear 7-4, and are meshed with the drive bevel gear 7-4. Driven bevel gears 7-5 in the two lifting assemblies are coaxially arranged. The indexing cone angles of the drive bevel gear 7-4 and the two driven bevel gears 7-5 are 45 degrees. The tenth hinging plates in one third hinging plate group are in a horizontal state, and the tenth hinging plates in the other third hinging plate group are obliquely upwards. I.e. the horizontal state is a state in which the two tenth hinging plates 7-9 are at the lower pole. Because the two driven bevel gears 7-5 are respectively positioned at the two sides of the driving bevel gear 7-4, the steering moments of the two rotating shafts 7-6 are opposite, so that the two tenth hinging plates 7-9 rotate in a staggered manner, and the staggered lifting of the two legs of a user is realized.
In a state where one of the handles 6-5 is moved to the highest point, the tenth hinge plate 7-9 located on the same side as the handle 6-5 is in a horizontal state.
The working principle of the invention is divided into a sitting exercise principle, an auxiliary standing principle and a standing exercise principle.
The sitting exercise principle is specifically as follows:
the user sits on the cushion plate 2 and ties the user's legs with the leg-tying bands 7-7 on the two eleventh hinge plates 7-10, respectively. The user holds the two handles 6-5 with both hands, respectively. The motor 5-1 is started to drive the adjustable crankshaft to rotate. The rotation of the adjustable crankshaft drives the first sliding block 5-6, the second sliding block 5-7 and the third sliding block 5-8 to slide reciprocally. Because the sliding directions of the first sliding block 5-6 and the second sliding block 5-7 are opposite, the up-and-down staggered stretching movement of the two hands respectively held on the two handles 6-5 by a user is realized.
The reciprocating sliding of the third sliding block 5-8 drives the rack to slide reciprocally, the rack drives the cylindrical gear 7-2 to rotate in a positive and negative circulation manner, and the driving bevel gear 7-4 rotates along with the rotation of the cylindrical gear 7-2. Because the two driven bevel gears 7-5 are respectively positioned at the two sides of the driving bevel gear 7-4, the steering moments of the two rotating shafts 7-6 are opposite, so that the two tenth hinging plates 7-9 rotate in a staggered manner, and the staggered lifting of the two legs of a user is realized. One of the handles 6-5 is turned down while being moved upward, with the tenth hinge plate 7-9 on the same side as the handle 6-5. The condition that the hands and the feet are the same in the exercise is avoided, and the exercise effect is greatly improved.
The principle of auxiliary standing is as follows:
the user sits on the cushion plate 2 and ensures that both legs are not bound by the legging straps 7-7. The electric push rod 4-1 is retracted, the distance between the sliding plate 4-2 and the fixed plate 4-3 is increased, the sliding plate 4-2 slides upwards, and the leaning cushion plate moves upwards along with the fixed plate 4-3 in an inclined way. The leaning cushion plate keeps a vertical state all the time in the moving process. And the cushion plate drives the cushion plate 2 to turn over, and the angle between the cushion plate and the cushion plate 2 is gradually increased. After the angle between the cushion plate and the cushion plate 2 reaches 180 degrees, the electric push rod 4-1 stops retracting, and at the moment, the cushion plate and the cushion plate 2 are on the same vertical plane, so that a user can complete the action from sitting to standing. Since the support columns 6-4 supporting the second pulleys 6-3 are fixed to the backing plate, the two second pulleys 6-3 move with the movement of the backing plate. The relative positions of the two second pulleys 6-3 and the hands of the user are unchanged during the standing process of the user.
The standing exercise principle is specifically as follows:
after the user is assisted to stand up, the two handles 6-5 are held by the hands, respectively. The motor 5-1 is started to drive the adjustable crankshaft to rotate. The rotation of the adjustable crankshaft drives the first sliding block 5-6 and the second sliding block 5-7 to slide reciprocally. Because the sliding directions of the first sliding block 5-6 and the second sliding block 5-7 are opposite, the up-and-down staggered stretching movement of the two hands respectively held on the two handles 6-5 by a user is realized. At this time, the movement of the leg lifting mechanism 7 does not affect the user.
Claims (8)
1. A rehabilitation chair for hand and foot synchronous exercise comprises a chair body, a cushion plate, a back plate, a standing auxiliary mechanism, a driving mechanism, an arm stretching mechanism and a leg lifting mechanism; the method is characterized in that: one end of the cushion plate is hinged with the chair body, and the other end of the cushion plate is hinged with the bottom end of the backboard;
the standing auxiliary mechanism comprises an electric push rod, a sliding plate, a fixed plate, a first connecting plate, a second connecting plate, a first hinge plate group and a second hinge plate group; the first hinge plate group comprises a first hinge plate, a second hinge plate, a third hinge plate and a fourth hinge plate which are sequentially hinged into a parallelogram from end to end; the second hinge plate group comprises a fifth hinge plate, a sixth hinge plate, a seventh hinge plate and an eighth hinge plate which are hinged into a parallelogram from end to end in sequence; the hinge shafts of the first hinge plate and the second hinge plate are fixed at one end of the first connecting plate; the hinge shafts of the fifth hinge plate and the sixth hinge plate are fixed at the other end of the first connecting plate; the hinge shafts of the third hinge plate and the fourth hinge plate are fixed at one end of the second connecting plate; the hinge shafts of the seventh hinge plate and the eighth hinge plate are fixed at the other end of the second connecting plate; the hinge shafts of the second hinge plate and the third hinge plate and the hinge shafts of the fifth hinge plate and the sixth hinge plate are fixed on the sliding plate; the hinge shafts of the first hinge plate and the fourth hinge plate and the hinge shafts of the fifth hinge plate and the eighth hinge plate are fixed on the fixed plate; the shell of the electric push rod is fixed with the first connecting plate, and the push rod is fixed with the second connecting plate; the fixed plate is fixed with the backboard; the sliding plate and the chair body form a sliding pair;
the driving mechanism comprises a motor, an adjustable crankshaft, a first connecting rod, a second connecting rod, a third connecting rod, a first sliding block, a second sliding block and a third sliding block; the adjustable crankshaft comprises a first shaft section, a second shaft section, a third shaft section, a fourth shaft section, a first crank, a second crank, a third crank, a first stud, a second stud and a bidirectional nut; the first crank consists of a first hinge shaft, two first bent plates and two first adjusting plates; the two first curved plates and the two first adjusting plates respectively form sliding pairs; opposite side surfaces of the two first adjusting plates are respectively fixed with two ends of the first hinge shaft; the second crank consists of a second hinge shaft, two second curved plates and two second adjusting plates; the two second curved plates and the two second adjusting plates respectively form sliding pairs; opposite side surfaces of the two second adjusting plates are respectively fixed with two ends of the second hinge shaft; the two first adjusting plates close to the second crank are fixed with the first stud; the second adjusting plate is fixed with the second stud close to the first crank; the external threads on the first stud and the second stud are opposite in rotation direction; two ends of the inner wall of the bidirectional nut are provided with internal threads with opposite screwing directions; the first stud and the second stud are respectively in threaded connection with two ends of the inner wall of the bidirectional nut; the third crank consists of a third hinge shaft and two third curved plates; opposite side surfaces of the two third curved plates are respectively fixed with two ends of the third hinging shaft;
one end of the first shaft section is supported on the chair body, and the other end of the first shaft section is fixed with a first curved plate in the first crank; the first shaft section is driven by a motor; the other first curved plate in the first crank is fixed with one end of the second shaft section; the other end of the second shaft section is fixed with a second curved plate in the second crank; the other second curved plate in the second crank is fixed with one end of the third shaft section; the other end of the third shaft section is fixed with a third curved plate in a third crank; the other third curved plate in the third crank is fixed with one end of the fourth shaft section; the other end of the fourth shaft section is supported on the chair body; one end of the first connecting rod and the first hinging shaft form a revolute pair, and the other end of the first connecting rod is hinged with the first sliding block; the first sliding block and the chair body form a sliding pair; one end of the second connecting rod and the second hinging shaft form a revolute pair, and the other end of the second connecting rod is hinged with the second sliding block; the second sliding block and the chair body form a sliding pair; one end of the third connecting rod and the third hinging shaft form a revolute pair, and the other end of the third connecting rod is hinged with the third sliding block; the third sliding block and the chair body form a sliding pair;
the arm stretching mechanism comprises a rope, a first pulley, a second pulley, a support column and a handle; two first pulleys arranged coaxially are supported on the chair body; the bottom ends of the two support columns are fixed with the top end of the backboard; two second pulleys arranged coaxially are respectively supported at the top ends of the two support columns; one end of each rope is respectively fixed with the first sliding block and the second sliding block, and the other end of each rope is respectively fixed with the two handles; the two ropes respectively pass around the two first pulleys and respectively pass around the two second pulleys;
the leg lifting mechanism comprises a rack, a cylindrical gear, a driving shaft, a driving bevel gear and two lifting assemblies; the rack is fixed with the third sliding block; the cylindrical gear and the drive bevel gear are fixed with a driving shaft supported on the chair body; the cylindrical gear is meshed with the rack; the lifting assembly comprises a driven bevel gear, a rotating shaft, a leg tying belt and a third hinge plate group; the driven bevel gear is fixed with a rotating shaft supported on the chair body; the third hinge plate group comprises a ninth hinge plate, a tenth hinge plate, an eleventh hinge plate and a twelfth hinge plate which are sequentially hinged end to form a parallelogram; the ninth hinge plate arranged vertically is fixed with the chair body; the tenth hinging plate is fixed with the rotating shaft; the axis of the rotating shaft is collinear with the axis of the hinge shaft of the ninth hinge plate and the tenth hinge plate; a leg tying belt is fixed on the eleventh hinging plate; driven bevel gears in the two lifting assemblies are meshed with the driving bevel gears;
the indexing cone angles of the driving bevel gear and the two driven bevel gears are 45 degrees; the rack slides to the state of being farthest from the adjustable crankshaft or slides to the state of being closest to the adjustable crankshaft, a tenth hinging plate in one third hinging plate group is in a horizontal state, and a tenth hinging plate in the other third hinging plate group is inclined upwards;
the first shaft section, the second shaft section, the third shaft section and the fourth shaft section are coaxially arranged; the axes of the first hinge shaft, the second hinge shaft and the third hinge shaft are parallel and not collinear with the axis of the first shaft section; the axes of the first hinge shaft and the second hinge shaft are not collinear, the distances from the axes of the first shaft section are equal, and the axes of the first hinge shaft, the second hinge shaft and the first shaft section are in the same plane.
2. The rehabilitation chair for hand and foot synchronous exercise according to claim 1, wherein: the chair body comprises a transverse plate, a vertical plate and supporting legs; one end of the transverse plate is fixed with the inner side surface of the vertical plate; two corners of the bottom surface of the transverse plate, which are far away from the vertical plate, are respectively fixed with the top ends of the two supporting legs; the bottom of two landing legs is equal to the bottom of riser high setting.
3. A rehabilitation chair for simultaneous hand and foot exercises according to claim 2, wherein: two rows of fixing holes are formed in the inner side surface of the vertical plate, and the two rows of fixing holes and the two pulley frames are respectively detachably fixed; two first pulleys arranged coaxially are respectively supported on the two pulley frames.
4. The rehabilitation chair for hand and foot synchronous exercise according to claim 1, wherein: the motor is fixed with the chair body; an output shaft of the motor is fixed with the first shaft section.
5. The rehabilitation chair for hand and foot synchronous exercise according to claim 1, wherein: one end of the leg-binding belt is fixed with a hook-face magic tape, and the other end is fixed with a wool-face magic tape.
6. The rehabilitation chair for hand and foot synchronous exercise according to claim 1, wherein: and the distances between the hinge shafts of the ninth hinge plate and the tenth hinge plate and the hinge shafts of the tenth hinge plate and the eleventh hinge plate are equal to 400mm.
7. The rehabilitation chair for hand and foot synchronous exercise according to claim 1, wherein: driven bevel gears in the two lifting assemblies are coaxially arranged.
8. The rehabilitation chair for hand and foot synchronous exercise according to claim 1, wherein: and in a state that one of the handles moves to the highest point, the tenth hinge plate positioned on the same side with the handle is in a horizontal state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710976824.6A CN107693302B (en) | 2017-10-19 | 2017-10-19 | Rehabilitation chair for hand and foot synchronous exercise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710976824.6A CN107693302B (en) | 2017-10-19 | 2017-10-19 | Rehabilitation chair for hand and foot synchronous exercise |
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| CN107693302A CN107693302A (en) | 2018-02-16 |
| CN107693302B true CN107693302B (en) | 2023-10-27 |
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| CN201710976824.6A Active CN107693302B (en) | 2017-10-19 | 2017-10-19 | Rehabilitation chair for hand and foot synchronous exercise |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108578168B (en) * | 2018-02-26 | 2020-05-08 | 吉林大学 | Foot-operated arm activity nursing device |
| CN108814896A (en) * | 2018-04-26 | 2018-11-16 | 青岛大学附属医院 | A kind of multifunction combined nursing in neurology device |
| CN113397908A (en) * | 2021-06-17 | 2021-09-17 | 张菊娜 | Medical care resumes exercise equipment with orthopedics arm bone |
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