CN109966109B - Bedside lower limb rehabilitation training device with adjustable base - Google Patents
Bedside lower limb rehabilitation training device with adjustable base Download PDFInfo
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- CN109966109B CN109966109B CN201711459901.7A CN201711459901A CN109966109B CN 109966109 B CN109966109 B CN 109966109B CN 201711459901 A CN201711459901 A CN 201711459901A CN 109966109 B CN109966109 B CN 109966109B
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- 210000003141 lower extremity Anatomy 0.000 title claims abstract description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 230000004580 weight loss Effects 0.000 claims description 6
- 239000013585 weight reducing agent Substances 0.000 claims description 6
- 210000003414 extremity Anatomy 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 201000000585 muscular atrophy Diseases 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- A61H1/0237—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
- A61H2201/0142—Beds
-
- 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
- A61H2201/0192—Specific means for adjusting dimensions
-
- 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
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- 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 bedside lower limb rehabilitation trainer with an adjustable base, which comprises a width adjusting base capable of adjusting the width of the base, a height-adjustable upright post, a driving part, a rotating beam, a lower limb fixing device and a leg weight-reducing guiding device, wherein the height-adjustable upright post is arranged on the driving part; the stand is vertical to be arranged in on the width adjustment base, rotatory crossbeam fixed connection in the stand top, the drive division is fixed in rotatory crossbeam is terminal, the drive division with low limbs fixing device connects, the shank subtract heavy guiding device set up in on the rotatory crossbeam, the shank subtract heavy guiding device with low limbs fixing device links to each other for alleviate patient's shank strength in the training process. The invention has the advantages of more stable and reliable width adjustment, nitrogen spring, auxiliary adjustment of the whole height and labor saving.
Description
Technical Field
The invention belongs to the technical field of medical rehabilitation equipment, and particularly relates to a bedside lower limb rehabilitation training device with an adjustable base.
Background
For the patient whose mobility is recovering, since the patient cannot get effective rehabilitation training by himself, in order to avoid muscular atrophy, a bedside rehabilitation training device is needed to assist the patient to complete rehabilitation training. The traditional bedside rehabilitation trainer adopts a wiring mode at the rotating cross beam to wire the side surfaces of two ends of a shaft sleeve, and the bending radius of a circuit at the rotating position of the cross beam is larger, so that the service life of a motor wire is influenced; secondly, the rotating cross beam of the existing equipment is mostly arranged above the fixed cross beam to better bear the load, but the configuration can cause the equipment to have larger size in height, and the fixed cross beam is easy to interfere with the bedside and is not beneficial to operation; the base of the existing equipment adopts a mode of adjusting the width of the base by an adjusting rod, and the structure of the existing equipment mostly adopts a universal coupling, so that the stability is general.
On the other hand, because current rotary beam walks the line for the sleeve side, bend radius is great, exists frequently to buckle and can influence motor signal line life-span. Secondly, the existing rotary beam is generally arranged above the fixed beam, the height is too high, and the rotary beam is easy to interfere with the bed body, so that the height adjusting range is reduced.
Therefore, a bedside lower limb rehabilitation training device with an adjustable base is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a bedside lower limb rehabilitation training device with an adjustable base.
In order to achieve the purpose, the invention adopts the following technical scheme: the bedside lower limb rehabilitation trainer with the adjustable base comprises a width adjusting base, a height adjustable upright post, a driving part, a rotating beam, a lower limb fixing device and a leg weight reduction guiding device, wherein the width adjusting base can adjust the width of the base;
the stand is vertical to be arranged in on the width adjustment base, rotatory crossbeam fixed connection in the stand top, the drive division is fixed in rotatory crossbeam is terminal, the drive division with low limbs fixing device connects, the shank subtract heavy guiding device set up in on the rotatory crossbeam, the shank subtract heavy guiding device with low limbs fixing device links to each other for alleviate patient's shank strength in the training process.
In some embodiments, the upright comprises an upright inner tube and an upright outer tube, and nitrogen springs are arranged in the upright inner tube and the upright outer tube, and the height of the upright inner tube, the upright outer tube and the nitrogen springs inside the upright inner tube and the upright outer tube is adjusted, so that the height of the driving part is adjusted.
In some embodiments, the rotating beam rotation range is ± 90 °.
In some embodiments, the leg weight loss guide device comprises an elastic rope, the leg weight loss guide device is connected with the lower limb fixing device through an elastic rope, and the length of the elastic rope is adjusted through an elastic rope handwheel at the tail end of the leg weight loss guide device.
In some embodiments, the driving part comprises a dc motor and a worm gear reducer, and both sides of the worm gear reducer are connected with the lower limb fixing device.
In some embodiments, the rotating beam includes a rotating beam rotating portion, a hollow shaft, and a rotating beam fixing portion;
the rotating crossbeam rotating part comprises a rotating inner pipe, a rotating outer pipe, a rotating knob, a lining, a hollow shaft, a first bearing and a second bearing;
the rotating beam fixing part comprises a fixing inner tube and a fixing outer tube;
the rotary inner pipe and the rotary outer pipe form a beam rotary end, and the rotary inner pipe can stretch along the rotary outer pipe and is locked by a rotary knob of the rotary part;
the rotating outer pipe is fixedly connected with the bushing, the hollow shaft and the bushing are coaxially arranged, the upper bearing and the lower bearing are provided with the first bearing and the second bearing, and the first bearing and the second bearing are locked by a first round nut and a second round nut respectively;
the rotating part knob is arranged on the outer side of the rotating outer tube, and the fixed end of the rotating part knob is connected with the hollow shaft to realize rotating positioning;
the hollow shaft is fixedly connected with the fixing part of the selection cross beam, and the rotating inner pipe is communicated with the hollow shaft and the inside of the fixed inner pipe;
and a motor signal wire and the power wire of the driving part penetrate into the lower end of the hollow shaft along the rotating inner pipe and penetrate into the fixed inner pipe from the hollow shaft.
In some embodiments, the nitrogen spring is disposed in the column inner tube, the upper end of the nitrogen spring is fixed on the mounting seat, the lower end of the nitrogen spring is fixed on the column outer tube through a mounting seat fixing block, the mounting seat fixing block is fixed with the column outer tube, and a square hole is formed in the mounting seat fixing block, so that the nitrogen spring can be installed in the column inner tube from the lower side of the mounting seat fixing block.
In some embodiments, the width adjustment base comprises casters, two caster holders, four parallel connecting rods, two universal couplings, a control device, a central locking connecting rod, a pedal, an eccentric wheel, a fixed foot, a width adjustment transmission mechanism, and a width adjustment connecting rod;
the two caster fixing seats are symmetrically arranged on two sides of the width adjusting transmission mechanism and are respectively connected with the width adjusting transmission mechanism through two width adjusting connecting rods; the lower parts of the ends of the two caster fixing seats are connected with the casters, and a base cross beam of the rehabilitation training device is hinged to the two caster fixing seats;
the four parallel connecting rods are arranged on the two caster fixing seats in a pairwise parallel manner, the two ends of the four parallel connecting rods are respectively provided with the eccentric wheels and the fixed ground feet, one ends of the four parallel connecting rods are fixedly connected with the central locking connecting rod through two universal couplings, and the pedal is arranged on the central locking connecting rod; when the central locking connecting rod is locked or released, the pedal drives the central locking connecting rod to rotate and drives the four parallel connecting rods to link through the universal coupling, so that the eccentric wheel compresses or releases the fixed ground feet, and the base is integrally locked or released;
the control device is connected with the width adjusting transmission mechanism;
when the width adjusting device is adjusted, the pedal is loosened, and the control device controls the width adjusting transmission mechanism to pull the width adjusting connecting rod to tighten or expand towards the inner sides of the two caster fixing seats, so that the two caster fixing seats are opened or tightened in a V shape.
The invention has the beneficial effects that:
1. the bedside lower limb rehabilitation training device with the adjustable base has the advantages that the base scheme is adjustable, so that the width adjustment is more stable and reliable.
2. The internal wiring of the invention adopts the hollow shaft wiring, and the shaft end wiring of the end of the rotary beam lightens the bending of the signal wire of the motor and improves the service life of the equipment.
3. The nitrogen spring is arranged in the height adjusting device, so that the integral height is adjusted in an auxiliary mode, and manpower is saved.
4. The active and passive control principle of the invention can play a reference role for part of rehabilitation training equipment which needs follow-up control.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a bedside lower limb rehabilitation training device with an adjustable base according to the invention.
Fig. 2 is a schematic structural diagram of a hollow trace of a rotating beam according to an embodiment of the invention.
FIG. 3 is a schematic diagram of the nitrogen spring installation configuration in one embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a width adjustment base according to an embodiment of the present invention.
Description of reference numerals:
1. width adjustment base 2, driving part 3 and lower limb fixing device
4. Leg weight reduction guide device 5, rotary beam 6 operation panel
7. Armrest 8, upright post 21 and rotary inner tube
22. Rotating outer tube 23, second bearing 24, first round nut
25. Lower seal cover 26, lock washer 27, welding bush
28. First bearing 29, fixed cross beam 210, hollow shaft
211. Second round nut 212, upper end cap 213, fixed inner tube
214. Fixed outer tube 215, fixed knob 31, upper end mount pad
32. Column inner tube 33, column outer tube 34, nitrogen spring
35. Mounting seat fixing block 36, lower end mounting seat 37 and bottom cross beam
41. Caster 42, fixed anchor 43, and caster mount
44. Synchronous belt transmission mechanism 45, belt wheel tensioning 46 and hand wheel
47. Left-right rotating screw 48, width adjusting connecting rod 49 and screw nut
410. Universal joint 411, central locking connecting rod 412, footboard.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention.
Fig. 1 to 4 are schematic structural views illustrating a bedside lower limb rehabilitation training device with an adjustable base according to an embodiment of the invention.
Referring to fig. 1, the bedside lower limb rehabilitation training device with an adjustable base comprises: width modulation base 1, the vertical stand 8 that is provided with on base 1 for support training ware overall structure, stand 8 comprises inside and outside steel pipe, is furnished with nitrogen spring 34 in, is used for adjusting the 2 height of drive division. The rotary beam 5 is welded at the top end of the upright post 8, and the rotary beam 5 can rotate within the range of +/-90 degrees at the existing position so as to adapt to the working environment for placing the bed side of the trainer. The driving part 2 is fixed at the tail end of the rotating beam 5, the driving part 2 adopts a transmission mode of a direct current motor and a worm gear reducer, two sides of the worm gear reducer are connected with the lower limb fixing devices 3, and the lower limb fixing devices 3 on the two sides are arranged at 180 degrees. The leg weight reduction guide device 4 is mounted on the rotating beam 5, and the leg weight reduction guide device 4 is provided with an elastic rope which is connected with the lower limb fixing device 3 so as to reduce leg strength of a patient in the training process. The length of the elastic rope can be adjusted by an elastic rope hand wheel (not shown in the figure) at the tail end of the device.
In this embodiment, the bedside lower limb rehabilitation training device with the adjustable base further comprises an operation panel 6 and a handrail 7.
Please refer to fig. 2, which is a schematic structural diagram of a central control routing manner of the rotating beam 5. The rotary beam 5 includes a rotary beam fixing portion 29, a hollow shaft 210, and a rotary beam rotating portion (not labeled in the drawings), the rotary beam fixing portion 29 includes a fixed inner tube 213 and a fixed outer tube 214, and the rotary beam rotating portion includes a rotary inner tube 21 and a rotary outer tube 22. The rotary inner tube 21 can be extended and contracted along the rotary outer tube 22 and locked by a rotary knob (not marked in the figure) so as to adapt to patients with different sizes. The rotating outer tube 22 is welded to the bushing 27. The hollow shaft 210 is disposed coaxially with the bush 27, and is provided with a first bearing 28 and a second bearing 23 on upper and lower sides. The first bearing 28 and the second bearing 23 are locked to the hollow shaft 210 by the first round nut 24 and the second round nut 211. The outer side of the rotating outer tube 22 is provided with a rotating part knob (not marked in the figure), and the fixed end of the rotating part knob is connected with the rotating part knob 210 to realize the rotating positioning. In this embodiment, the motor signal line and the power line of the driving portion 2 can be inserted into the lower shaft end of the hollow shaft and can be extended out from the upper side surface. Since the hollow shaft 210 is fixed to the rotating beam fixing part 29 and the hollow communicates, there is no twisting of the wire at the upper end of the hollow shaft 210. Specifically, as shown in fig. 2, the wire is inserted into the hollow shaft 210 from the inner rotary tube 21 of the rotary beam rotary part, and is passed out from the rotary beam fixing part 29. When the rotating beam rotating portion 5 rotates, the motor wire is not bent greatly due to the arrangement of the rotating beam rotating portion, the hollow shaft 210, the bushing 27, and the rotating beam fixing portion 29.
The hollow shaft 210 also includes a lower seal cap 25 and an upper end cap 212. The fixed outer tube 214 is provided with a fixed knob 215.
Referring to fig. 3, an embodiment of the nitrogen spring 34 is shown. The column 8 includes a column inner tube 32 and a column outer tube 33. The nitrogen spring 34 is arranged in the upright post inner tube 32, the upper end of the nitrogen spring 32 is fixed on the upper end mounting seat 31 through a screw, and the lower end of the nitrogen spring is fixed on the upright post outer tube 33 through a mounting seat fixing block 35. The mounting seat fixing block 35 is fixed with the upright post outer tube 33, and a square hole is formed in the mounting seat fixing block 35, so that the nitrogen spring 34 can be installed into the upright post inner tube 32 from the lower side of the mounting seat fixing block 35. The height of the driving unit 2 is adjusted by adjusting the height of the column inner tube 32, the column outer tube 33, and the nitrogen spring 34 inside. The bottom of the upright post 8 is also provided with a bottom cross beam 37.
Referring to fig. 4, the width adjustment base 1 includes a caster 41, two caster holders 43, four parallel connecting rods, two universal joints 410, a control device, a central locking connecting rod 411, a pedal 412, an eccentric wheel, a fixed foot 42, a width adjustment transmission mechanism, and a width adjustment connecting rod 48.
The two caster fixing seats 43 are symmetrically arranged on two sides of the width adjusting transmission mechanism and are respectively connected with the width adjusting transmission mechanism through two width adjusting connecting rods 48; the lower part of the end parts of the two caster fixing seats 43 is connected with the caster 41, and a base cross beam of the rehabilitation training device is hinged on the two caster fixing seats 43.
Four parallel connecting rods are arranged on the two caster fixing seats 43 in a pairwise parallel manner, the eccentric wheels and the fixed feet 42 are respectively arranged at two ends of the four parallel connecting rods, one ends of the four parallel connecting rods are fixedly connected with the central locking connecting rod 411 through two universal couplings 410, and the pedal 412 is arranged on the central locking connecting rod 411; when the central locking connecting rod 411 is locked or released, the pedal 412 drives the central locking connecting rod 411 to rotate, and drives the four parallel connecting rods to link through the universal coupling 410, so that the eccentric wheel compresses or releases the fixed anchor 42, and the base is integrally locked or released.
The control device is connected with the width adjusting transmission mechanism.
During adjustment, the pedal 412 is released, and the control device controls the width adjustment transmission mechanism to pull the width adjustment connecting rod 48 to tighten or expand towards the opposite inner sides of the two caster fixing seats 43, so that the two caster fixing seats 43 are opened or tightened in a V shape.
Specifically, the caster mount pad 43 includes left caster fixing base and right caster fixing base, and the off-center position on left caster fixing base and the right caster fixing base is articulated through the round pin axle with the base crossbeam of low limbs rehabilitation training ware respectively, and four truckles 41 are connected respectively to left caster fixing base and right caster fixing base bottom.
The width adjusting transmission mechanism is fixed on a base of the lower limb rehabilitation training device, one ends of the two width adjusting connecting rods are respectively hinged on the width adjusting transmission mechanism, and the other ends of the two width adjusting connecting rods are respectively hinged on the left caster fixing seat and the right caster fixing seat. The knob is connected with the width adjusting transmission mechanism 1 and used for controlling width adjustment.
The four parallel connecting rods are respectively arranged on two sides of the left caster fixing seat and the right caster fixing seat in pairs, and the bottoms of two ends of the parallel connecting rods are respectively connected with the eccentric wheel and the fixed anchor. The eccentric wheel is a four-foot eccentric wheel, when the lower limb rehabilitation training device works normally, the base is in an integral fixed state, and four foot points of the four-foot eccentric wheel are tightly pressed on the fixed ground feet.
One ends of the four parallel connecting rods close to the width adjusting transmission mechanism are respectively connected with two ends of the central locking connecting rod 411 through universal couplings. The pedal 412 is disposed at a middle position of the central locking link 411. When the central locking connecting rod 411 is locked, the pedal 412 is stepped to drive the central locking connecting rod 411 to rotate, the two parallel rods are driven to be linked through the universal coupling, and the eccentric wheel compresses and fixes the ground feet, so that the base is integrally fixed.
When the opening angle or the enlarged width is adjusted, the pedal 412 is loosened, the knob is unscrewed, the width adjusting transmission mechanism pulls the width adjusting connecting rod to tighten the inner sides of the left caster base and the right caster base which are opposite to each other, so that the left caster fixing seat and the right caster fixing seat are opened in a V shape until the angle or the width is adjusted to be proper, and the knob is locked. At this time, the pedal 412 is stepped, the connecting rod rotates, and the two-side parallel connecting rods are driven through the two-side universal couplings, so that the eccentric wheels synchronously press and fix the ground feet to realize the positioning of the whole rehabilitation training device. When the angle needs to be tightened and the width needs to be reduced, the principle is similar.
The width adjusting transmission mechanism comprises a synchronous belt transmission mechanism 44, a left screw rod and a right screw rod 47, and further comprises a hand wheel 46, a shaft, a first synchronous belt wheel, a belt wheel mounting seat, a belt wheel tensioning 45, a synchronous belt, a second synchronous belt wheel, a left screw rod and a right screw rod 47, a sliding nut, a guide rail, a nut stop block and a shaft sleeve.
The hand wheel 46 is coaxially and fixedly connected with the first synchronous belt wheel through a shaft, the shaft and the first synchronous belt wheel are fixedly arranged on the belt wheel mounting seat, and the belt wheel mounting seat is fixed on a base of the lower limb rehabilitation training device.
The vertical direction is opened on the band pulley mount pad has the notch, and along the notch direction, first synchronous pulley passes through the hold-in range and drives below second synchronous pulley and accomplishes the band pulley transmission. Tensioning of the synchronous pulley is achieved by a screw of pulley tensioning 45. The second synchronous pulley is fixedly connected with the left-handed and right-handed screw rods, wherein one end of the left side of the left-handed and right-handed screw rod is left-handed and the right side of the left-handed and right-handed screw rod is right-handed. Correspondingly, the left side and the right side of the left screw rod and the right screw rod are coaxially provided with sliding nuts, one side of each sliding nut is provided with a T-shaped groove which is connected with the guide rail in a sliding way, and a nut baffle block limits the sliding range of the sliding nut; the sliding screw is hinged with one end of a width adjusting connecting rod, and the other end of the width adjusting connecting rod is hinged with a truckle fixing seat through a shaft sleeve.
The left and right screw rods 47 and their attachments in the present invention are defined as left and right screw pairs. The left and right screw pair comprises a left and right rotating screw, a fixed ring, a lining and a screw mounting seat. The fixing ring is used for axially fixing the second synchronous belt pulley on the left-handed and right-handed screw, the second synchronous belt pulley is provided with a set screw which is used for tightly fixing the synchronous belt, and the tail ends of the left-handed and right-handed screw are coaxially matched with the screw mounting seat through the bushing and are axially positioned by the nut. The width adjusting connecting rod is hinged with the sliding nut through a stepped pin shaft and is coaxially provided with a bushing.
In this embodiment, the working process of the base adjusting device is as follows: when the angle is opened or the width is enlarged to be adjusted, the pedal 412 is loosened, the knob is unscrewed, the hand wheel 46 is swung anticlockwise towards the hand wheel 46, the width adjusting connecting rods at the two sides are pulled to be tightened inwards through internal transmission, so that the left caster fixing seat and the right caster fixing seat at the two sides are opened in a V shape, the proper angle or width is adjusted, and the knob is locked; at this time, the pedal 412 is stepped, the connecting rods rotate, and the four parallel connecting rod structures on the two sides are driven through the two universal couplings on the two sides, so that the four-foot point eccentric wheels synchronously compress and fix the ground feet, and the positioning of the whole rehabilitation training device is realized. When the angle needs to be tightened and the width needs to be reduced, the principle is similar, and the hand wheel 46 is swung clockwise in the direction facing the hand wheel 46.
The base adjusting device drives the left screw pair and the right screw pair through the synchronous belt transmission 44, the position angles of four parallel connecting rods are adjusted by the sliding blocks at the two ends of the screw pairs, the width adjustment of the base is realized, and the fixing and releasing of the base are completed through one-key central control locking. The hand wheel 46 effectively saves the working space of the adjusting input end, the number of universal couplings can be reduced by the screw pair, the quantitative adjusting precision is improved, and the base is simpler to operate due to the dead locking of the central control.
The invention has the beneficial effects that:
the novel bedside active and passive rehabilitation training device can be suitable for bedside upper limb rehabilitation or lower limb rehabilitation, wherein the rotary beam routing adopts hollow shaft rotary side shaft end routing, and the rotary beam is positioned below the fixed beam, so that the working range is enlarged. And a hand wheel type width adjusting base is arranged, so that the width adjustment is more stable and reliable.
Wherein:
1. the rotary beam is in two sections, the rotary beam at the lower side can rotate 180 degrees, and the rotary beam is suitable for two arrangement modes of a bed end and a bed side.
2. The hinge joint of the rotary beam adopts the hollow shaft to rotate the shaft end of the side for wiring, thereby reducing the influence of wire bending.
3. The invention adopts the hand wheel type left and right screw pair width adjusting base, thereby improving the reliability of width adjustment.
4. The internal height of the invention is adjusted by a nitrogen spring to assist manual height adjustment.
It will be further appreciated by those of skill in the art that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of clearly illustrating the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. A bedside lower limb rehabilitation trainer with an adjustable base is characterized by comprising a width adjusting base capable of adjusting the width of the base, a height-adjustable upright post, a driving part, a rotating beam, a lower limb fixing device and a leg weight-reducing guiding device;
the upright post is vertically arranged on the width adjusting base, the rotating cross beam is fixedly connected to the top end of the upright post, the driving part is fixed at the tail end of the rotating cross beam, the driving part is connected with the lower limb fixing device, the leg weight reduction guiding device is arranged on the rotating cross beam, and the leg weight reduction guiding device is connected with the lower limb fixing device and used for reducing leg strength of a patient in a training process;
the rotary beam comprises a rotary beam rotary part, a hollow shaft and a rotary beam fixing part;
the rotating crossbeam rotating part comprises a rotating inner pipe, a rotating outer pipe, a rotating knob, a lining, a hollow shaft, a first bearing and a second bearing;
the rotating beam fixing part comprises a fixing inner tube and a fixing outer tube;
the rotary inner pipe and the rotary outer pipe form a rotary end of the cross beam, and the rotary inner pipe can stretch along the rotary outer pipe and is locked by a rotary knob;
the rotating outer pipe is fixedly connected with the bushing, the hollow shaft and the bushing are coaxially arranged, the first bearing and the second bearing are respectively matched with the hollow shaft in the vertical direction, and the first bearing and the second bearing are respectively locked by a first round nut and a second round nut;
the rotary knob is arranged on the outer side of the rotary outer tube, and the fixed end of the rotary knob is connected with the hollow shaft to realize rotary positioning;
the hollow shaft is fixedly connected with a fixed part of the rotating beam, and the rotating inner tube is communicated with the hollow shaft and the inside of the fixed inner tube;
a motor signal wire and a power wire of the driving part penetrate into the lower end of the hollow shaft along the rotating inner pipe and penetrate into the fixed inner pipe from the hollow shaft;
the width adjusting base comprises casters, two caster fixing seats, four parallel connecting rods, two universal couplings, a control device, a central control locking connecting rod, a pedal, an eccentric wheel, a fixed foot margin, a width adjusting transmission mechanism and a width adjusting connecting rod;
the two caster fixing seats are symmetrically arranged on two sides of the width adjusting transmission mechanism and are respectively connected with the width adjusting transmission mechanism through two width adjusting connecting rods; the lower parts of the ends of the two caster fixing seats are connected with the casters, and a base cross beam of the rehabilitation training device is hinged to the two caster fixing seats;
the four parallel connecting rods are arranged on the two caster fixing seats in a pairwise parallel manner, the two ends of the four parallel connecting rods are respectively provided with the eccentric wheel and the fixed ground foot, the two parallel connecting rods positioned in the same caster fixing seat are fixedly connected with the central control locking connecting rod through a universal coupling, and the pedal is arranged on the central control locking connecting rod; when the central locking connecting rod is locked or released, the pedal drives the central locking connecting rod to rotate and drives the four parallel connecting rods to link through the universal coupling, so that the eccentric wheel compresses or releases the fixed ground feet, and the base is integrally locked or released;
the control device is connected with the width adjusting transmission mechanism;
when the width adjusting device is adjusted, the pedal is loosened, and the control device controls the width adjusting transmission mechanism to pull the width adjusting connecting rod to tighten or expand towards the inner sides of the two caster fixing seats, so that the two caster fixing seats are opened or tightened in a V shape.
2. The bedside lower limb rehabilitation trainer as claimed in claim 1, wherein the column comprises an inner column tube and an outer column tube, and nitrogen springs are disposed in the inner column tube and the outer column tube, so that the height of the driving part can be adjusted by adjusting the height of the inner column tube, the outer column tube and the nitrogen springs therein.
3. The bedside adjustable lower extremity rehabilitation trainer as claimed in claim 1, wherein the rotation beam has a range of rotation of ± 90 °.
4. The bedside lower limb rehabilitation trainer as claimed in claim 1, wherein the leg weight loss guide comprises an elastic cord, the leg weight loss guide is connected to the lower limb fixation device through the elastic cord, and the length of the elastic cord is adjusted by an elastic cord handwheel at the end of the leg weight loss guide.
5. The bedside lower limb rehabilitation trainer as claimed in claim 1, wherein the driving part comprises a dc motor and a worm gear reducer, and both sides of the worm gear reducer are connected to the lower limb fixing device.
6. The bedside lower limb rehabilitation trainer as claimed in claim 2, wherein the nitrogen spring is disposed in the column inner tube, the upper end of the nitrogen spring is fixed to the mounting seat, the lower end of the nitrogen spring is fixed to the column outer tube through a mounting seat fixing block, the mounting seat fixing block is fixed to the column outer tube, and a square hole is formed in the mounting seat fixing block so that the nitrogen spring can be installed in the column inner tube from below the mounting seat fixing block.
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| CN201711459901.7A CN109966109B (en) | 2017-12-28 | 2017-12-28 | Bedside lower limb rehabilitation training device with adjustable base |
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| CN201711459901.7A CN109966109B (en) | 2017-12-28 | 2017-12-28 | Bedside lower limb rehabilitation training device with adjustable base |
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| CN109966109B true CN109966109B (en) | 2021-05-25 |
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| CN111494156B (en) * | 2020-04-20 | 2022-03-04 | 安徽医科大学第一附属医院 | Meniscus repair postoperative rehabilitation instrument |
| CN114367082B (en) * | 2022-01-20 | 2023-07-07 | 河北格美医疗器械科技有限公司 | Active and passive rehabilitation training system for lower limbs |
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