CN111588565A - Medical rehabilitation bed with three postures of sitting, lying and standing - Google Patents
Medical rehabilitation bed with three postures of sitting, lying and standing Download PDFInfo
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- CN111588565A CN111588565A CN202010414355.0A CN202010414355A CN111588565A CN 111588565 A CN111588565 A CN 111588565A CN 202010414355 A CN202010414355 A CN 202010414355A CN 111588565 A CN111588565 A CN 111588565A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
- A61G7/015—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch position
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/017—Stretchers convertible into chairs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/02—Stretchers with wheels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/006—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs convertible to stretchers or beds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
- A61G7/005—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame tiltable around transverse horizontal axis, e.g. for Trendelenburg position
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of 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
- 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
- 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
- A61H2201/0119—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
- A61H2205/00—Devices for specific parts of the body
- A61H2205/10—Leg
Abstract
The invention provides a medical rehabilitation bed with three postures of sitting and lying, which comprises a base, a T-shaped support, an inverted L-shaped lifting column, a lifting column jacking device, a saddle-shaped back plate, a back plate linear driving device, a seat plate driving device, leg plates and leg plate linear driving devices. The invention is characterized in that a bed body consisting of a back plate, a seat plate, leg plates and a suspension frame is arranged on a lifting column, the lifting column is arranged on a base, and the bed body can be lifted up and down through the lifting column. The bed body can rotate around the lifting column so as to achieve lying and standing positions, and the seat board and the leg board can rotate around respective shafts so as to achieve sitting positions. The suspension frame can be lifted to adjust the height. Each module is driven independently. The invention can realize the rehabilitation of three postures of sitting and lying, and meet different rehabilitation requirements of patients.
Description
Technical Field
The invention relates to the field of medical rehabilitation, in particular to a sitting and lying three-posture medical rehabilitation bed.
Background
The medical rehabilitation bed is used in cooperation with an upper limb rehabilitation robot and a lower limb rehabilitation robot, a patient lies on the rehabilitation bed and is fixed, and the rehabilitation bed moves to different poses such as a standing pose or a sitting pose to enable the patient to use the upper limb rehabilitation robot and the lower limb rehabilitation robot to perform upper limb and lower limb rehabilitation training in corresponding poses.
The existing medical rehabilitation beds are various in types, most of the beds are designed from lying to standing, the length of the beds is short, and the beds can only bear the body of a patient above the back, so that the patient can get on or off the rehabilitation bed difficultly, the use comfort level is low, the patient can only carry out standing posture rehabilitation training due to the fact that the working posture of the rehabilitation bed is only standing posture, and the safety protection performance of the rehabilitation bed is poor due to the fact that most of the rehabilitation beds are provided with a plurality of exposed parts.
In conclusion, the rehabilitation bed which is simple in structure, convenient for the patient to go up and down, capable of adapting to the statures of different patients, capable of achieving two rehabilitation postures of standing posture and sitting posture, high in safety and suitable for the upper and lower limb rehabilitation robots to work is very important, and has certain use value and research significance.
Disclosure of Invention
Based on the defects of the prior art, the invention aims to provide the medical rehabilitation bed with the sitting, lying and standing postures, and the medical rehabilitation bed with the sitting, lying and standing postures has the advantages of simple structure, convenience in control, capability of realizing the sitting and standing posture rehabilitation training of patients, convenience in patient transfer, good adaptability and the like.
The invention provides a medical rehabilitation bed with three postures of a sitting and lying station, which comprises a base, a support, a lifting column jacking device, a back plate linear driving device, a seat plate driving device, leg plates and leg plate linear driving devices, wherein the base is provided with a support seat;
the support is a T-shaped thin-walled cylinder, the support is fixedly connected with the flat-plate-shaped base, and the side cylinder wall of the support is vertical to the plane of the base;
the lifting column is a thin-walled cylinder with a T-shaped main section, the upper half part of the T-shaped short edge of the cylinder wall extends to enable the T-shaped support column to be in an inverted L shape, and the middle part of the inverted L-shaped lifting column is provided with a middle mounting plate; the reverse L-shaped lifting column is sleeved outside the T-shaped support to form a first moving pair, and the direction of the first moving pair is vertical to the plane of the base;
the lifting column jacking device is positioned inside the T-shaped support thin-walled cylinder, the lower end of the lifting column jacking device is connected with the base, and the upper end of the lifting column jacking device is connected with the lower end of the middle mounting plate in the inverted L-shaped lifting column;
the back plate is a saddle-shaped rectangular plate, two sides of the lower part of the back plate are respectively and fixedly connected with a cuboid hip joint position adjusting block, the short edge of the lower end of the rectangular plate is connected with the end part of the cylinder wall extension part of the T-shaped short edge of the upper part of the inverted L-shaped lifting column through a first rotating pair, and the axis of the first rotating pair is parallel to the plane of the base and is vertical to the moving direction of the first moving pair;
the backboard linear driving device is installed in the upper extending part of the T-shaped short side of the cylinder wall of the inverted L-shaped lifting column, the first end of the backboard linear driving device is hinged with the side of the T-shaped long side of the inverted L-shaped lifting column, and the second end of the backboard linear driving device is hinged with the backboard;
the seat plate is a hollow flat cuboid, and the end part of one side of the seat plate is connected with the inverted L-shaped lifting column and the back plate through a first revolute pair;
the seat plate driving device comprises a seat plate linear driving device, a first connecting rod and a second connecting rod; the linear driving device is arranged in the extension part of the upper part of the T-shaped short side of the cylinder wall of the inverted L-shaped lifting column, the first end of the seat plate linear driving device is connected with the inverted L-shaped lifting column through a revolute pair, and the second end of the seat plate linear driving device is connected with the first ends of the first connecting rod and the second connecting rod through a coaxial revolute pair; the second end of the first connecting rod is connected with the inverted L-shaped lifting column through a revolute pair; the second end of the second connecting rod is connected with the lower surface of the seat plate through a revolute pair; the first connecting rod, the second connecting rod, the seat plate and the inverted L-shaped lifting column form a four-bar mechanism; the axes of all the revolute pairs of the seat plate driving device are parallel to the axis of the first revolute pair;
the leg plate is a flat cuboid, the end part of one side of the leg plate is connected with the end part of the other side of the seat plate through a second revolute pair, and the axis of the second revolute pair is parallel to the axis of the first revolute pair;
the leg plate linear driving device comprises a sliding seat, a sliding block and a leg plate driving rod, the sliding seat is fixed below the hollow flat cuboid of the seat plate, the linear driving direction of the leg plate linear driving device is perpendicular to the first rotating pair, the first end of the leg plate driving rod is connected with the sliding block through the rotating pair, the second end of the leg plate driving rod is connected with the lower portion of the leg plate through the rotating pair, and the axes of all the rotating pairs of the leg plate linear driving device are parallel to the axis of the second rotating pair.
Preferably, the bottom of the base is provided with trundles, two sides of the base are provided with movable gantry frames, and sliding blocks at the bottom of the gantry frames are connected to sliding rails at two sides of the base to form a second sliding pair; the second moving pair direction is perpendicular to the first moving pair and perpendicular to the axis of the first rotating pair.
Preferably, the gantry includes an upper frame and a lower frame, the upper frame and the lower frame form a third moving pair, and the third moving pair is in the same direction as the first moving pair.
Preferably, the long limit inside of lift post is equipped with a pair of backplate and rises booster unit, backplate rises booster unit and is the telescopic cylinder that can produce reaction force after the compression, and telescopic cylinder lower extreme is fixed in the long limit inside of lift post, and telescopic cylinder extending direction is on a parallel with first pair of removal, and the gyro wheel is installed at the end top that stretches out of telescopic cylinder.
Preferably, a foldable safety pull rod is arranged between the lifting column and the back plate, the foldable safety pull rod comprises an upper safety pull rod and a lower safety pull rod, the first end of the upper safety pull rod is connected with the back plate through a hinge, and the second end of the upper safety pull rod and the first end of the lower safety pull rod form a third revolute pair; the axis of the third rotating pair is parallel to the axis of the first rotating pair, and the second end of the lower safety pull rod is connected with the lifting column through a hinge.
Preferably, a pair of rotatable handrails is mounted at the upper part of the rear part of the back plate, the rotatable handrails are respectively mounted above the two hip joint position adjusting blocks, and the rotation axis of the rotatable handrails is perpendicular to the first revolute pair and parallel to the plane of the back plate.
Preferably, a lifting suspension frame is mounted on the back plate, the lifting suspension frame comprises a suspension frame lifting column, a suspension frame and a suspension frame linear driving device, and the suspension frame lifting column and the upper half part of the back plate form a fourth sliding pair; the direction of the fourth moving pair is vertical to the first rotating pair; the suspension frame is fixedly connected with the upper end of the suspension frame lifting column; the first end of the suspension frame linear driving device is connected with the middle part of the back plate, and the second end of the suspension frame linear driving device is connected with the suspension frame.
Preferably, the leg plate comprises an outer leg plate, an inner leg plate and a leg plate locking device, the outer leg plate wraps the inner leg plate and forms a fifth moving pair with the inner leg plate, and the direction of the fifth moving pair is perpendicular to the first rotating pair.
Preferably, the leg plate locking device comprises a rotary pressure rod, a rubber ring and an outer leg plate connecting block, the rotary pressure rod penetrates through the rubber ring to be connected with the outer leg plate connecting block through a spiral pair, the moving direction of the spiral pair is the same as that of the fifth moving pair, and the outer leg plate connecting block is fixed at the bottom of the outer leg plate and forms the fifth moving pair together with the outer leg plate and the inner leg plate.
Compared with the prior art, the invention has the following effects:
(1) the medical rehabilitation bed has three postures of sitting, lying and standing, can respectively realize the rehabilitation of sitting postures and standing postures of patients, and is convenient for transferring the patients in the lying postures.
(2) The medical rehabilitation bed has the advantages of motion decoupling, independent driving of each component, simple structure and convenient control.
(3) The medical rehabilitation bed has adjustable size, can adapt to patients with different statures, and has stronger practicability and adaptability.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the bed of the present invention;
FIG. 3 is a schematic structural view of a T-shaped support and an inverted L-shaped lifting column of the present invention;
FIG. 4 is a detailed structural diagram of the lathe bed of the invention;
FIG. 5 is a schematic view of the leg plate construction of the present invention;
FIG. 6 is a schematic view of the invention in a sitting position; and
fig. 7 is a schematic standing position of the present invention.
Some of the reference numbers in the figures are as follows: 1-base, 2-T-shaped support, 201-support, 202-guide roller, 3-inverted L-shaped lifting column, 301-lifting column, 302-middle mounting plate, 303-guide rail, 4-lifting column jacking device, 5-saddle-shaped back plate, 501-back plate frame, 502-hip joint position adjusting block, 6-back plate linear driving device, 7-seat plate, 8-seat plate driving device, 801-linear driving device, 802-first connecting rod, 803-second connecting rod, 9-leg plate, 901-leg plate frame, 902-outer leg plate, 903-rotary pressure rod, 904-rubber ring, 905-outer leg plate connecting block, 10-leg plate linear driving device, 1001-sliding seat, 1002-sliding block, 1003-leg plate driving rod, 11-a power assisting device, 12-a folding safety pull rod, 1201-an upper safety pull rod, 1202-a lower safety pull rod, 13-a lifting suspension frame, 1301-a lifting column, 1302-a suspension frame, 1303-a linear driving device, 14-a gantry and 15-a lower limb rehabilitation module.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in fig. 1 and 2, the invention provides a medical rehabilitation bed with three postures of sitting and lying. The lifting column lifting device comprises a base 1, a T-shaped support 2, a lifting column 3 which is integrally in an inverted L shape, a lifting column jacking device 4, a saddle-shaped back plate 5, a back plate linear driving device 6, a seat plate 7, a seat plate driving device 8, leg plates 9 and leg plate linear driving devices 10. In one embodiment, the rehabilitation bed of the present invention may be further extended with a lower limb rehabilitation module 15.
As shown in fig. 2 and 3, the T-shaped support 2 includes a support 201 and a guide roller 202, the support 201 is a thin-walled tube having a T-shaped longitudinal section, and a tube wall is cut off in the T-shaped direction at an upper half portion of the support 201. The support 201 is fixed on the base, and two groups of guide rollers 202 are longitudinally arranged on the wider two sides of the support. The guide roller 202 serves as a guide for linear motion, and a roller bearing or a slide rail may be used. The guide rails in the corresponding inverted-L lifting columns 3 can also be replaced by means cooperating with the above-mentioned means.
The inverted L-shaped lifting column 3 comprises a lifting column 301, an intermediate mounting plate 302 and a guide rail 303. The lifting column 301 is a thin-walled cylinder with a T-shaped longitudinal section, the lifting column 301 is fixedly connected with a flat-plate-shaped base, the cylinder wall of the T-shaped short side of the upper half part of the lifting column 301 extends forwards to form a triangle with the upper side parallel to the top surface of the lifting column, the cylinder walls on the two sides of the triangular tip of the lifting column extend obliquely upwards to form a hinged support, a pair of circular holes are formed in the wall of the hinged support, and two pairs of circular holes which are longitudinally arranged are formed in the cylinder wall of the short side of the lifting column. The middle mounting plate 302 is a rectangular plate with a width slightly smaller than the short side of the T-shaped support and a length equal to the length of the inverted L-shaped lifting column, the long side of the middle mounting plate extends downwards at the rear half part and forms a platform towards the two sides, and a hinged support protrudes above the rear half part. The middle mounting plate 302 is fixed to the inner side of the cylinder wall of the inverted L-shaped lifting column 301 through the cut-out portion of the T-shaped support 201. A pair of guide rails 303 are fixed to the inside of the wide-side tube wall of the inverted L-shaped elevating column 301.
The inverted L-shaped lifting column 3 is nested on the outer side of the T-shaped support 201, a guide rail 303 of the inverted L-shaped lifting column 3 and a guide roller 202 of the T-shaped support form a first moving pair, and the direction of the first moving pair is vertical to the plane of the base.
The lifting column jacking device 4 is positioned inside the wide edge of the T-shaped support 201, the lower part of the lifting column jacking device 4 is fixed on the base 1 through a bolt, and the upper part of the lifting column jacking device 4 is fixed below the middle mounting plate 302 in the inverted L-shaped lifting column 3 through a bolt; the lifting column driving device 4 may use an electric push rod, a hydraulic cylinder, a rack and pinion device, or a screw device.
As shown in fig. 4, the saddle-shaped back plate 5 includes a back plate frame 501 and a hip joint position adjusting block 502, the back plate frame 501 is a flat rectangular thin-wall box with an opening at the lower side, the short side at the lower side is connected with the end of the cylinder wall extension part of the T-shaped short side at the upper half part of the inverted L-shaped lifting column 3 through a hinged support to form a revolute pair, and the axis of the revolute pair is parallel to the base plane and perpendicular to the moving direction of the first revolute pair. The hip joint position adjusting blocks 502 are connected below the saddle-shaped back plate 5, and when the rehabilitation bed is in a lying position, the hip joint position adjusting blocks 502 are folded at two sides of the T-shaped short side of the inverted L-shaped lifting column 3. In other embodiments, a pair of rotatable handrails can be arranged behind the back plate and above the hip joint position adjusting block, and when the rehabilitation bed is in a lying posture, the rotatable handrails are retracted behind the back plate; when the rehabilitation bed is in a standing or sitting position, the armrests rotate out to the front of the back plate.
One end of the back plate linear driving device 6 and a hinged support on the middle mounting plate 302 in the inverted L-shaped lifting column 3 form a revolute pair, and the other end of the back plate linear driving device 6 and a hinged support on the left side below the saddle-shaped back plate 5 form a revolute pair. The axes of all revolute pairs of the back plate linear driving device 6 are perpendicular to the middle vertical surface of the rehabilitation bed, and the back plate driving device 6 can use an electric push rod or a hydraulic cylinder.
The seat board 7 is approximately a hollow flat cuboid, and the wide edge is parallel to the direction of the lathe bed; one side end of the seat board is connected with the inverted L-shaped lifting column and the back board through a hinged support, and the seat board, the inverted L-shaped lifting column and the back board form a first rotating pair together.
The seat plate driving means 8 includes a linear driving means 801, a first link 802, and a second link 803; one end of the linear driving device 801 and a round hole on the cylinder wall at the lower part in the inverted L-shaped lifting column 3 form a rotating pair, and the other end of the linear driving device and one end of the first connecting rod 802 and one end of the second connecting rod 803 form a rotating pair in a coaxial mode. The other end of the first connecting rod 802 and the round hole at the hinged support of the inverted L-shaped lifting column 3 form a revolute pair, and the other end of the second connecting rod 803 and the bottom surface of the seat plate are connected through the hinged support to form a revolute pair. The first connecting rod 802, the second connecting rod 803, the seat plate 7 and the hinged support part of the inverted L-shaped lifting column 3 form a four-bar mechanism, and the axes of all revolute pairs of the seat plate driving device 8 are perpendicular to the middle vertical surface of the rehabilitation bed.
As shown in fig. 5, the leg plate 9 has a flat rectangular parallelepiped shape in which the housing is stretchable and lockable. The leg plate 9 includes a leg plate frame 901, an outer leg plate 902, a rotary strut 903, a rubber ring 904, and an outer leg plate connecting block 905. The leg plate frame 901 is wrapped by the outer leg plate 902 and forms a moving pair, and the rotary pressure rod 903 passes through the rubber ring 904 and is connected with the outer leg plate connecting block 905 by a spiral pair. The moving direction of the screw pair is the same as the leg plate direction, and the outer leg plate connecting block 905 is fixed at the bottom of the outer leg plate 902 and forms a moving pair together with the outer leg plate 902 and the inner leg plate 901. The rubber ring 904 is longitudinally pressed by turning the rotary press rod 903 to radially expand, so that the outer leg plate 902 is pressed against the leg plate frame 901 to achieve locking. The leg plate frame 901 is connected with the seat plate 7 at one end through a hinged support to form a revolute pair, and the axes of the revolute pair are perpendicular to the middle vertical surface of the rehabilitation bed.
The leg plate linear driving device 10 comprises a sliding seat 1001, a sliding block 1002 and a leg plate driving rod 1003, the sliding seat 1001 is fixed below the hollow flat cuboid of the seat plate 7, the linear driving direction is perpendicular to a first rotating pair, one end of the leg plate driving rod 1003 is connected with the sliding block 1002 through a hinged support to form a rotating pair, the other end of the leg plate driving rod 1003 is connected with the lower surface of the leg plate frame 901 through a hinged support to form a rotating pair, the leg plate linear driving devices 10 are respectively connected with a second rotating pair with the axes parallel to the rotating pair, the sliding block 1002 slides on the sliding seat 1001, and the leg plate driving rod 1003 drives the leg plate 9 to rotate around the seat plate 7. The leg plate linear driving apparatus 10 may use a slider type electric push rod.
The back board lifting power assisting device 11 is a pair of telescopic rods, a spring is arranged inside each rod, and rollers are arranged at the tops of the rods. One end of the power assisting device 11 is fixed on the middle mounting plate 302 through a bolt, and the other end of the power assisting device is freely contacted with the bottom surface of the saddle-shaped back plate. The extending and retracting direction of the back plate lifting power assisting device 11 is the same as that of the first moving pair, when the saddle-shaped back plate 5 is lifted, the back plate lifting power assisting device 11 provides power for the back plate, after the back plate is rotated to a certain angle, the back plate lifting power assisting device 11 is separated from contact, and in other embodiments, the back plate lifting power assisting device 11 can also use an air spring.
The folding safety pull rod 12 is in a shape of two folding long rods, the folding safety pull rod 12 comprises an upper safety pull rod 1201 and a lower safety pull rod 1202, one end of the upper safety pull rod 1201 is connected with the saddle-shaped back plate 5 through a hinge, the other end of the upper safety pull rod 1201 and one end of the lower safety pull rod 1202 form a third rotating pair, the axis of the third rotating pair is parallel to the axis of the first rotating pair, the other end of the lower safety pull rod 1202 is connected with the cylinder wall 3 of the inverted L-shaped lifting column through a hinge and is installed on the extending part of the cylinder wall of the T-shaped short edge of the upper half part of the inverted L-shaped lifting column, the upper safety pull rod 1201 and the lower safety pull rod 1202 are in a folding shape and are located on the extending part of the cylinder wall of the T-shaped short edge of the upper half part of the inverted L-shaped lifting column 3 when the back plate 5 works.
The lifting suspension 13 includes a lifting column 1301, a suspension 1302, and a linear driving device 1303. The lifting column 1301 penetrates through the top of the back plate 5 to form a sliding pair, the upper end of the lifting column 1301 is fixed on the suspension bracket 1302 through a screw, and the suspension bracket 1302 is a U-shaped bracket with adjustable extension length. One end of the linear driving device 1303 is fixed in the middle of the saddle-shaped back plate 5 through a bolt, and the other end of the linear driving device 1303 is fixed on the suspension bracket 1302. The linear actuator 1303 has a moving pair direction parallel to the bed direction, and the linear actuator 1303 in the lifting suspension frame 13 may be an electric push rod, a hydraulic cylinder, or a screw device.
Preferably, the lifting column 1301 of the lifting suspension 13 is guided by a guide block fixed inside the back plate, and a slide rail and a slider may be used.
Furthermore, the bottom of the base 1 is provided with casters, two sides of the base 1 are provided with movable doorframe 14, the sliding blocks at the bottom of the doorframe 14 are connected to the sliding rails at two sides of the base to form a sliding pair, and the sliding pair is perpendicular to the bottom surface.
As shown in fig. 6, the rehabilitation bed can realize sitting posture rehabilitation, and the lifting column jacking device 4 lifts the inverted L-shaped lifting column 3. The back plate driving device 6 pushes the saddle-shaped back plate 5 to rotate to the vertical position around the first rotating pair, and the leg plate linear driving device 10 retracts to drive the leg plate driving rod 1003 to rotate the leg plate 9 to the retracted position around the seat plate 7. At the moment, the rehabilitation bed is in a chair shape to carry out sitting posture rehabilitation training.
As shown in fig. 7, the rehabilitation bed can realize standing posture rehabilitation. The lifting column jacking device 4 lifts the inverted L-shaped lifting column 3; the back plate driving device 6 pushes the saddle-shaped back plate 5 to rotate to a vertical position around the first rotating pair; the linear driving device 801 retracts to drive the first connecting rod 802 and the second connecting rod 803 to rotate, so that the seat plate 7 rotates to the retracted position around the first rotating pair, and the leg plate linear driving device 10 extends to drive the leg plate driving rod 1003 to rotate the leg plate 9 to the extended position around the seat plate 7. At the moment, the rehabilitation bed is in a state that the seat plate and the leg plate are retracted backwards so as to carry out standing posture rehabilitation training.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims (9)
1. A medical rehabilitation bed with three postures of sitting, lying and standing is characterized in that: the lifting column lifting device comprises a base, a support, a lifting column lifting device, a back plate linear driving device, a seat plate driving device, a leg plate and a leg plate linear driving device;
the support is a T-shaped thin-walled cylinder, the support is fixedly connected with the flat-plate-shaped base, and the side cylinder wall of the support is vertical to the plane of the base;
the lifting column is a thin-walled cylinder with a T-shaped main section, the upper half part of the T-shaped short edge of the cylinder wall extends to enable the T-shaped support column to be in an inverted L shape, and the middle part of the inverted L-shaped lifting column is provided with a middle mounting plate; the reverse L-shaped lifting column is sleeved outside the T-shaped support to form a first moving pair, and the direction of the first moving pair is vertical to the plane of the base;
the lifting column jacking device is positioned inside the T-shaped support thin-walled cylinder, the lower end of the lifting column jacking device is connected with the base, and the upper end of the lifting column jacking device is connected with the lower end of the middle mounting plate in the inverted L-shaped lifting column;
the back plate is a saddle-shaped rectangular plate, two sides of the lower part of the back plate are respectively and fixedly connected with a cuboid hip joint position adjusting block, the short edge of the lower end of the rectangular plate is connected with the end part of the cylinder wall extension part of the T-shaped short edge of the upper part of the inverted L-shaped lifting column through a first rotating pair, and the axis of the first rotating pair is parallel to the plane of the base and is vertical to the moving direction of the first moving pair;
the backboard linear driving device is installed in the upper extending part of the T-shaped short side of the cylinder wall of the inverted L-shaped lifting column, the first end of the backboard linear driving device is hinged with the side of the T-shaped long side of the inverted L-shaped lifting column, and the second end of the backboard linear driving device is hinged with the backboard;
the seat plate is a hollow flat cuboid, and the end part of one side of the seat plate is connected with the inverted L-shaped lifting column and the back plate through a first revolute pair;
the seat plate driving device comprises a seat plate linear driving device, a first connecting rod and a second connecting rod; the linear driving device is arranged in the extension part of the upper part of the T-shaped short side of the cylinder wall of the inverted L-shaped lifting column, the first end of the seat plate linear driving device is connected with the inverted L-shaped lifting column through a revolute pair, and the second end of the seat plate linear driving device is connected with the first ends of the first connecting rod and the second connecting rod through a coaxial revolute pair; the second end of the first connecting rod is connected with the inverted L-shaped lifting column through a revolute pair; the second end of the second connecting rod is connected with the lower surface of the seat plate through a revolute pair; the first connecting rod, the second connecting rod, the seat plate and the inverted L-shaped lifting column form a four-bar mechanism; the axes of all the revolute pairs of the seat plate driving device are parallel to the axis of the first revolute pair;
the leg plate is a flat cuboid, the end part of one side of the leg plate is connected with the end part of the other side of the seat plate through a second revolute pair, and the axis of the second revolute pair is parallel to the axis of the first revolute pair;
the leg plate linear driving device comprises a sliding seat, a sliding block and a leg plate driving rod, the sliding seat is fixed below the hollow flat cuboid of the seat plate, the linear driving direction of the leg plate linear driving device is perpendicular to the first rotating pair, the first end of the leg plate driving rod is connected with the sliding block through the rotating pair, the second end of the leg plate driving rod is connected with the lower portion of the leg plate through the rotating pair, and the axes of all the rotating pairs of the leg plate linear driving device are parallel to the axis of the second rotating pair.
2. The sitting and lying station three-posture medical rehabilitation bed according to claim 1, characterized in that: the bottom of the base is provided with trundles, two sides of the base are provided with movable gantry frames, and sliding blocks at the bottom of the gantry frames are connected to sliding rails at two sides of the base to form a second sliding pair; the second moving pair direction is perpendicular to the first moving pair and perpendicular to the axis of the first rotating pair.
3. The sitting and lying station three-posture medical rehabilitation bed according to claim 1, characterized in that: the gantry frame comprises an upper frame body and a lower frame body, the upper frame body and the lower frame body form a third moving pair, and the direction of the third moving pair is the same as that of the first moving pair.
4. The sitting and lying station three-posture medical rehabilitation bed according to claim 3, characterized in that: the long limit inside of lift post is equipped with a pair of backplate and rises booster unit, backplate rises booster unit and is the telescopic cylinder that can produce reaction force after the compression, and telescopic cylinder lower extreme is fixed inside the long limit of lift post, and telescopic cylinder direction of stretching out is on a parallel with first pair of removal, and the gyro wheel is installed at the end top that stretches out of telescopic cylinder.
5. The sitting and lying station three-posture medical rehabilitation bed according to claim 1, characterized in that: a foldable safety pull rod is arranged between the lifting column and the back plate, the foldable safety pull rod comprises an upper safety pull rod and a lower safety pull rod, the first end of the upper safety pull rod is connected with the back plate through a hinge, and the second end of the upper safety pull rod and the first end of the lower safety pull rod form a third revolute pair; the axis of the third rotating pair is parallel to the axis of the first rotating pair, and the second end of the lower safety pull rod is connected with the lifting column through a hinge.
6. The sitting and lying station three-posture medical rehabilitation bed according to claim 5, characterized in that: the upper part of the back plate is provided with a pair of rotatable handrails, the rotatable handrails are respectively arranged above the two hip joint position adjusting blocks, and the rotating axis of the rotatable handrails is vertical to the first rotating pair and is parallel to the plane of the back plate.
7. The sitting and lying station three-posture medical rehabilitation bed according to claim 5, characterized in that: the lifting suspension frame is arranged on the back plate and comprises a suspension frame lifting column, a suspension frame and a suspension frame linear driving device, and the suspension frame lifting column and the upper half part of the back plate form a fourth sliding pair; the direction of the fourth moving pair is vertical to the first rotating pair; the suspension frame is fixedly connected with the upper end of the suspension frame lifting column; the first end of the suspension frame linear driving device is connected with the middle part of the back plate, and the second end of the suspension frame linear driving device is connected with the suspension frame.
8. The sitting and lying station three-posture medical rehabilitation bed according to claim 1, characterized in that: the leg plates comprise outer layer leg plates, inner layer leg plates and leg plate locking devices, the outer layer leg plates wrap the inner layer leg plates and form a fifth moving pair with the inner layer leg plates, and the direction of the fifth moving pair is perpendicular to the first rotating pair.
9. The sitting and lying station three-posture medical rehabilitation bed according to claim 8, characterized in that: the leg plate locking device comprises a rotary pressing rod, a rubber ring and an outer layer leg plate connecting block, the rotary pressing rod penetrates through the rubber ring to be connected with the outer layer leg plate connecting block through a spiral pair, the moving direction of the spiral pair is the same as that of the fifth moving pair, and the outer layer leg plate connecting block is fixed at the bottom of the outer layer leg plate and forms the fifth moving pair together with the outer layer leg plate and the inner layer leg plate.
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| CN114224666A (en) * | 2022-01-11 | 2022-03-25 | 刘方民 | Operating bed |
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| CN111588565B (en) | 2021-03-19 |
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