CN111467197A - Multi-screw rod lifting station-assisting walking-aid vehicle - Google Patents
Multi-screw rod lifting station-assisting walking-aid vehicle Download PDFInfo
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- CN111467197A CN111467197A CN202010338282.1A CN202010338282A CN111467197A CN 111467197 A CN111467197 A CN 111467197A CN 202010338282 A CN202010338282 A CN 202010338282A CN 111467197 A CN111467197 A CN 111467197A
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- 230000007246 mechanism Effects 0.000 claims abstract description 58
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- 230000008569 process Effects 0.000 claims description 9
- 230000003028 elevating effect Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 206010033799 Paralysis Diseases 0.000 description 6
- 230000000474 nursing effect Effects 0.000 description 4
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- 206010023230 Joint stiffness Diseases 0.000 description 2
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- 210000003205 muscle Anatomy 0.000 description 2
- 230000004220 muscle function Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010003694 Atrophy Diseases 0.000 description 1
- 206010028289 Muscle atrophy Diseases 0.000 description 1
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- 201000000585 muscular atrophy Diseases 0.000 description 1
- 238000005457 optimization 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
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/04—Wheeled walking aids for patients or disabled persons
-
- 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
- A61H1/0214—Stretching or bending or torsioning apparatus for exercising by rotating cycling movement
-
- 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
- A61H1/0255—Both knee and hip of a patient, e.g. in supine or sitting position, the feet being moved together in a plane substantially parallel to the body-symmetrical plane
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
- A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
- F16D27/118—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
-
- 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
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/04—Wheeled walking aids for patients or disabled persons
- A61H2003/043—Wheeled walking aids for patients or disabled persons with a drive mechanism
-
- 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
- A61H2201/1445—Overrunning clutches; One-way clutches
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
- A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
- A63B2022/0635—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers specially adapted for a particular use
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2208/00—Characteristics or parameters related to the user or player
- A63B2208/02—Characteristics or parameters related to the user or player posture
- A63B2208/0228—Sitting on the buttocks
- A63B2208/0233—Sitting on the buttocks in 90/90 position, like on a chair
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- Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Pain & Pain Management (AREA)
- Epidemiology (AREA)
- Veterinary Medicine (AREA)
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention relates to the technical field of rehabilitation equipment, in particular to a multi-screw rod station-assisting walking aid vehicle which comprises a base frame, a multi-screw rod lifting mechanism, a lifting platform, a telescopic arm assembly, a waist and back protection device and a battery pack, wherein tires for moving are arranged on the base frame, the multi-screw rod lifting mechanism is arranged on the base frame, the lifting platform is arranged on the multi-screw rod lifting mechanism, the telescopic arm assembly is arranged on the multi-screw rod lifting mechanism or the lifting platform, the waist and back protection device is arranged at the end part of the telescopic arm assembly, a controller is arranged on the lifting platform, and the controller is used for controlling the tires, the telescopic arm assembly, the multi-screw rod lifting mechanism and the waist and back protection device to act; a seat board is arranged on the base frame. According to the multi-screw rod lifting station-assisting walking vehicle, stable lifting is realized by driving the telescopic arm component through the multi-screw rod lifting mechanism, meanwhile, the waist and back protection device can improve the stability of clamping a patient, and the practical safety and reliability of equipment are improved.
Description
Technical Field
The invention relates to the technical field of rehabilitation equipment, in particular to a multi-screw rod standing-assisting walking aid vehicle.
Background
At present, patients suffering from high paralysis caused by various reasons are often accompanied with a hospital bed for a long time, lack of movement, and the conditions of muscle function degradation and muscle atrophy are caused, so that joint degeneration lesion, joint stiffness and other irreversible lesions are caused. And the patient can do passive or active rehabilitation training on the bed but can not get out of the bed under the condition that the body allows. The wheelchairs in the current market are hand-pushed and electric, and need to be assisted by nursing staff to move to the wheelchairs, and meanwhile, patients suffering from high paralysis are difficult to stand for training. The patient with high paralysis is shifted to the wheel chair by the aid of nursing staff, pushed to the rehabilitation training room, shifted to the flat bed for the rehabilitation training of thigh, leg and joint, and then shifted to the flat bed for the standing rehabilitation training. The displacement here is more meant to be carried up and down. The great physical strength of the rehabilitation doctors and the nursing staff is consumed when the patients are treated and trained.
The high-level paralysis patient leaves the hospital and gets back to home to lose the rehabilitation training, and more time is accompanied by the bed, which causes irreversible diseases such as atrophy of muscles, loss of muscle functions, degenerative change of joints, joint stiffness and the like of the patient.
At present, the patient can not be connected to the wheelchair from the sickbed and can be subjected to standing rehabilitation training without the assistance of nursing staff in the market.
Chinese patent application, patent number: 2019108656257, the lifting function in the technical proposal is realized by an electric push rod, and the stability and the reliability are poor.
Disclosure of Invention
The invention aims to solve the technical defects and provide a multi-screw lifting assistant vehicle, which utilizes a plurality of screws to lift synchronously to improve the stability and reliability of the assistant vehicle in the lifting process.
In order to achieve the purpose, the invention designs a multi-screw rod lifting station-assisting rollator, which comprises a base frame, a multi-screw rod lifting mechanism, a lifting platform, a telescopic arm assembly, a waist and back protection device and a battery pack, wherein tires for moving are arranged on the base frame, the multi-screw rod lifting mechanism is arranged on the base frame, the lifting platform is arranged on the multi-screw rod lifting mechanism, the telescopic arm assembly is arranged on the multi-screw rod lifting mechanism or the lifting platform, the waist and back protection device is arranged at the end part of the telescopic arm assembly, a controller is arranged on the lifting platform and used for controlling the tires, the telescopic arm assembly, the multi-screw rod lifting mechanism and the waist and back protection device to move, and the battery pack provides electric energy for the movement of each part; a seat board is arranged on the base frame; wherein many lead screw elevating system's structure does: at least three vertical upward guide outer tubes are arranged on a base frame at intervals, a guide inner tube is arranged in each guide outer tube, the guide inner tubes and the guide outer tubes are matched and are in sliding connection in the vertical direction, the upper ends of the guide inner tubes are exposed outside the guide outer tubes, a lifting platform is arranged at the top ends of the guide inner tubes, guide screw sleeves are arranged in the guide inner tubes, internal threads are arranged in the guide screw sleeves, lead screws are arranged in the guide screw sleeves, the external threads of the lead screws are matched with the internal threads of the guide screw sleeves, one ends of the lead screws are positioned in the guide screw sleeves, the other ends of the lead screws are positioned outside the guide screw sleeves, the lower ends of the guide screw sleeves are fixed on the guide outer tubes or on a base in the guide outer tubes, optical axes are arranged at the upper ends of the lead screws, and the optical axes on, and a power mechanism is arranged in the lifting platform, the power mechanism is respectively connected to the uppermost end of the screw rod in each guide inner pipe through a rotating shaft, and the rotating shaft is in transmission connection with the screw rod.
Among the above-mentioned technical scheme, when using, need utilize back protection device with the armpit centre gripping of the paralysed patient of illness, then hold up the patient under the effect of multifilament pole elevating system, its lifting principle is as follows: at least three guide outer tubes are arranged on a base frame, guide inner tubes are arranged in a matched manner, a lifting platform is arranged on the guide inner tubes, so that the lifting platform moves in the vertical direction under the action of the guide outer tubes and the guide inner tubes, the power source of the lifting platform is a power mechanism, the power mechanism is connected to the upper end of a screw rod in each guide inner tube through a rotating shaft, a guide screw sleeve and a screw rod combination are arranged in the guide inner tubes and the guide outer tubes, one end of the screw rod is arranged in the guide screw sleeve in a matched manner, the end part of the screw rod is an optical shaft, namely a shaft without threads, the optical shaft is rotatably connected with the guide inner tubes or the lifting platform, the axial displacement between the optical shaft and the rotating platform or the guide inner tubes is limited at the rotary connection part, the optical shaft is in transmission connection with the rotating shaft through a sector gear, so that, make the cooperation total length extension between the two or shorten, drive the direction inner tube and remove along vertical direction inside the direction outer tube, because the rotational speed that the lead screw was given in the pivot is the same, so the elevating speed of each lead screw is the same to it is high to realize that lift platform is at the lift stability of vertical direction.
The number of the guide outer tubes is four, and the guide outer tubes are arranged on the base frame at intervals in a rectangular shape. Under normal conditions, the base frame of the rehabilitation vehicle for the patient with the paralysis is rectangular or similar to rectangular, and in order to realize the stability between the lifting platform and the base frame, the combination of four outer guide pipes, inner guide pipes, guide screw sleeves, screw rods and the like is adopted, so that the acting force of the borne pressure on each guide screw sleeve and the screw rod is basically kept stable under the condition of stress of the lifting platform, the lifting process is more stable, and the situations of blocking and the like caused by local inclination can be avoided.
Power unit includes double-end gear motor, double-end gear motor is last to have two output shafts, and the output speed of two output shafts is unanimous, all be provided with the worm on two output shafts of double-end gear motor, be provided with two pivots on lift platform, the pivot rotates on lift platform to be connected, the worm wheel has been cup jointed in the pivot, every epaxial worm wheel of changeing is connected with one of them worm cooperation on the double-end gear motor respectively, the both ends of pivot extend to the top of the lead screw that corresponds respectively, be provided with the sector gear of mutually supporting between the tip of pivot and the top of lead screw respectively. In the scheme, because there are four lead screws and need power unit drive synchronous rotation, so adopt double-end gear motor, double-end gear motor is for having an output shaft respectively at the motor both ends, and the output rotational speed of two output shafts is the same, sets up the worm on every output shaft to the worm wheel is connected in the cooperation, and the worm wheel setting is in the pivot, and the power of output shaft passes through worm gear and worm and transmits to the pivot, transmits to the lead screw by the pivot again, through the two-stage transmission, can evenly transmit power to the lead screw, ensures that the lead screw rotational speed is the same. In addition, the output shafts of the double-head speed reduction motor have the same rotating speed, and the thread direction on the screw rod or the direction of the worm gear can be adjusted in order to ensure the synchronous lifting of the screw rod in the guide screw sleeve. And through the structural transmission of worm gear between output shaft and the pivot, when lift platform rises to optional position, can realize the auto-lock between the worm gear, so lift platform rises to optional position and all can automatic locking, difficult emergence under the exogenic action and the circumstances of automatic rising, the security is higher.
The lead screw and the lead screw sleeve have lead screw lead angles smaller than the equivalent friction angle. The design of this structure can realize also can the auto-lock between direction swivel nut and the lead screw, when only receiving axial pressure promptly, can not take place to rotate between lead screw and the direction swivel nut, and the location ability is strong.
The guide outer pipe and the guide inner pipe are square pipes. The design of this structure can make the cooperation of direction outer tube and direction inner tube more stable, and the stability of lift in-process is higher, and anti bending ability is stronger moreover.
The telescopic arm assembly comprises a horizontal slide rail arranged on the multi-screw rod lifting mechanism or the lifting platform and a U-shaped arm arranged on the horizontal slide rail, the U-shaped arm slides on the slide rail, and the telescopic mechanism is arranged between the lifting platform and the U-shaped arm; the waist and back protection device is arranged at the end parts of two sides of the U-shaped arm, and the structure of the waist and back protection device is as follows: the automatic positioning device comprises a mounting rack, the mounting rack is connected to a U-shaped arm, a main shaft in a vertical direction is arranged on the mounting rack, a protective frame is fixed on the main shaft, a motor is arranged on the mounting rack, an output shaft of the motor is in transmission connection with the main shaft, the automatic positioning device further comprises a self-locking mechanism, the self-locking mechanism is used for positioning the main shaft, a synchronizing wheel is arranged on the main shaft, a limiting protrusion is arranged on the circumferential surface of the synchronizing wheel, two limit switches are arranged on the mounting rack, and the limiting protrusion on the synchronizing wheel is in contact with the two limit switches in the rotating process of. Above-mentioned technical scheme drives the fender bracket through the motor and rotates along with the pivot, and rotates required scope accessible limit switch and restrict, avoids rotating and causes the condition such as the clamp injury to the patient because of the transition, and after the centre gripping targets in place, accessible self-locking mechanism fixes the position of fender bracket to can promote stability and the reliability of protecting the patient.
The self-locking mechanism is a worm gear mechanism or a gear clutch or a self-locking motor; wherein: the structure of the gear clutch is as follows: comprises an installation shell, a positioning gear is arranged in the installation shell, the positioning gear is rotationally connected with the installation shell, a main shaft penetrates through the installation shell, the positioning gear is sleeved on the main shaft and is fixedly connected with the main shaft, at least one positioning column is rotatably connected on the mounting shell at the side edge of the positioning gear, one end of the positioning column, which is far away from the positioning gear, is rotatably connected with the mounting shell, a plurality of positioning bulges are arranged at the end part of one end of the positioning column, which is close to the positioning gear, a pressure spring is arranged at the side edge of the positioning column, the pressure spring presses the positioning column to the positioning gear to enable the positioning bulge on the positioning column to be matched with the teeth of the positioning gear, the positioning device also comprises a pull rod, one end of the pull rod is connected with the positioning column, the positioning column is enabled to be separated from the positioning gear when the pull rod is pulled, the other end of the pull rod is connected with a suction block, an electromagnet is arranged on the side edge of the suction block, and the electromagnet drives a pull rod to pull the positioning column to be far away from the positioning gear in the suction process of the suction block.
In the scheme, the gear clutch sleeves the positioning gear on the main shaft, the positioning gear and the main shaft synchronously move and are matched with the positioning column, the positioning protrusion at the top of the positioning column is meshed with the teeth of the positioning gear and then is propped against the positioning gear, so that the positioning gear cannot rotate, and meanwhile, the positioning protrusion is tightly pressed on the positioning gear by the pressure spring, so that the stability of locking the position of the positioning gear is high; when the spindle needs to be disengaged, the electromagnet absorbs the suction block and pulls the pull rod, so that the positioning column overcomes the pressure of the pressure spring to rotate, the end part of the positioning column is far away from the positioning gear, disengagement is achieved, and the spindle can rotate. Utilize the positioning gear as the location basis simultaneously, its location fineness is high, can select suitable positioning gear tooth number according to minimum positioning accuracy, and every tooth all can regard as a location angle to elasticity and travelling comfort when having ensured the protection shield to patient's protection.
As optimization, the quantity of reference column is two, and when the location arch of two reference column tip and the tooth cooperation of positioning gear, two reference columns are the V type setting, and the opening is towards positioning gear, and the pressure spring sets up the outside at two reference columns respectively, is provided with a briquetting in the inboard of two reference columns, and the briquetting is connected with the pull rod, and the interval between the position that two reference columns rotate to be connected with the installation shell is less than the width of briquetting in the equidirectional. The design of this structure through two reference columns slope orientation positioning gear, can fix a position positioning gear's corotation and reversal are whole, and positional stability is higher moreover to the fender bracket is safe and reliable more to patient's protection. Set up the briquetting between two reference columns, utilize the electro-magnet to adsorb and inhale the piece and stimulate the pull rod to drive the briquetting and remove, the briquetting removes the in-process and presses two reference columns to both sides, and overcomes the pressure spring of both sides and makes both all disengage with the positioning gear, and the process synchronism that disengages is high, and the device operation is more reliable and more stable.
One end of the seat board is connected with the base frame through a pin shaft, a telescopic mechanism is arranged between the other end of the seat board or the middle part of the seat board and the base frame, and the telescopic mechanism drives the seat board to rotate around the pin shaft.
The base frame is of a U-shaped structure, the base frame below the seat plate is a standing area, and the standing area is vertically communicated.
The tire comprises a driving wheel and a driven wheel. Preferably, two driving wheels are selected, the driving wheels are preferably electric wheels, the driving wheels are arranged at the front end of the base frame, the number of the driven wheels is two, the two driven wheels are respectively arranged on two sides of the rear end of the base frame, and the driven wheels are universal wheels or omnidirectional wheels.
According to the multi-screw rod lifting station-assisting walking vehicle, stable lifting is realized by driving the telescopic arm component through the multi-screw rod lifting mechanism, meanwhile, the waist and back protection device can improve the stability of clamping a patient, and the practical safety and reliability of equipment are improved.
Drawings
FIG. 1 is a perspective view of the present invention 1;
FIG. 2 is a perspective view of the present invention 2;
FIG. 3 is a schematic structural diagram of a multi-screw lifting mechanism of the present invention;
FIG. 4 is a schematic view of the connection between the inner and outer guiding tubes of the multi-wire rod lifting mechanism of the present invention;
FIG. 5 is a schematic view of the power connection of the multi-screw lifting mechanism of the present invention;
FIG. 6 is a schematic structural view of the waist and back protection device of the present invention;
FIG. 7 is a schematic structural view of a gear clutch in the lumbar and back protection device of the present invention;
fig. 8 is a schematic structural diagram of embodiment 2 of the present invention.
Detailed Description
The invention is further described by way of example with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 and 2, the multi-screw rod lifting station-assisting rollator described in this embodiment includes a base frame 1, a multi-screw rod lifting mechanism 2, a lifting platform 3, a telescopic arm assembly 4, a waist and back protection device 5 and a battery pack 6, wherein a tire 8 for movement is arranged on the base frame 1, the multi-screw rod lifting mechanism 2 is arranged on the base frame 1, the lifting platform 3 is arranged on the multi-screw rod lifting mechanism 2, the telescopic arm assembly 4 is arranged on the multi-screw rod lifting mechanism 2 or the lifting platform 3, the waist and back protection device 5 is arranged at an end of the telescopic arm assembly 4, a controller is arranged on the lifting platform 3, the controller is used for controlling the tire 8, the telescopic arm assembly 4, the multi-screw rod lifting mechanism 2 and the waist and back protection device 5 to move, and the battery pack 6 provides electric energy for the movement of each component; a seat plate 7 is arranged on the base frame 1; as shown in fig. 3, 4 and 5, the multi-screw lifting mechanism 2 has the following structure: at least three vertically upward guide outer tubes 2-2 are arranged on a base frame 1 at intervals, a guide inner tube 2-3 is arranged inside each guide outer tube 2-2, the guide inner tubes 2-3 are matched with the guide outer tubes 2-2 and are connected in a sliding mode in the vertical direction, the upper ends of the guide inner tubes 2-3 are exposed outside the guide outer tubes 2-2, a lifting platform 3 is arranged at the top end of each guide inner tube 2-3, guide screw sleeves 2-7 are arranged inside the guide inner tubes 2-3, internal threads are arranged inside the guide screw sleeves 2-7, screw rods 2-8 are arranged inside the guide screw sleeves 2-7, external threads of the screw rods 2-8 are matched with the internal threads of the guide screw sleeves 2-7, and one ends of the screw rods 2-8 are located inside the guide screw sleeves 2-7, the other end of the screw rod 2-8 is positioned outside the guide screw sleeve 2-7, the lower end of the guide screw sleeve 2-7 is fixed on the guide outer tube 2-2 or on the base frame 1 inside the guide outer tube 2-2, the upper end of the screw rod 2-8 is provided with an optical axis 2-9, the optical axis 2-9 part on the screw rod 2-8 is rotatably connected with the lifting platform 3 or the guide inner tube 2-3, the inside of the lifting platform 3 is provided with a power mechanism, the power mechanism is respectively connected to the uppermost end of the screw rod 2-8 in each guide inner tube 2-3 through a rotating shaft 2-4, and the rotating shaft 2-4 is in transmission connection with the screw rod 2-8.
The number of the guide outer tubes 2-2 is four, and the guide outer tubes are arranged on the base frame 1 at intervals in a rectangular shape. The power mechanism comprises a double-head speed reducing motor 2-5, two output shafts are arranged on the double-head speed reducing motor 2-5, the output rotating speeds of the two output shafts are consistent, two output shafts of the double-head speed reducing motor 2-5 are respectively provided with a worm 2-12, two rotating shafts 2-4 are arranged on the lifting platform 3, the rotating shafts 2-4 are rotatably connected on the lifting platform 3, the rotating shafts 2-4 are sleeved with worm gears 2-13, the worm gear 2-13 on each rotating shaft 2-4 is respectively matched and connected with one worm 2-12 on the double-head speed reduction motor 2-5, two ends of each rotating shaft 2-4 extend to the uppermost end of the corresponding screw rod 2-8, and sector gears 2-10 which are matched with each other are respectively arranged between the end part of each rotating shaft 2-4 and the uppermost end of each screw rod 2-8. The sector gears 2-10 can be arranged in a gear box 2-11, the gear box 2-11 is fixed on the side edge of the lifting platform 3, and the optical axis 2-9 at the end part of the screw rod 2-8 and the end part of the rotating shaft 2-4 extend into the gear box 2-11 and are connected with the sector gears 2-10. The lead angles of the screw rods 2-8 and the guide screw sleeves 2-7 are all smaller than the equivalent friction angle.
The telescopic arm assembly 4 comprises a horizontal slide rail arranged on the multi-screw rod lifting mechanism 2 or the lifting platform 3 and a U-shaped arm arranged on the horizontal slide rail, the U-shaped arm slides on the slide rail, and a telescopic mechanism is arranged between the lifting platform 3 and the U-shaped arm; the waist and back protection devices 5 are arranged at the two side ends of the U-shaped arm, and as shown in fig. 6 and 7, the waist and back protection devices 5 have the following structure: comprises a mounting rack 5-1, the mounting rack 5-1 is connected on a U-shaped arm, a main shaft 5-2 in the vertical direction is arranged on the mounting rack 5-1, a protective frame 5-3 is fixed on the main shaft 5-2, a motor 5-4 is arranged on the mounting frame 5-1, an output shaft of the motor 5-4 is in transmission connection with the main shaft 5-2, the device also comprises a self-locking mechanism, the self-locking mechanism is used for positioning the main shaft 5-2, a synchronizing wheel 5-5 is arranged on the main shaft 5-2, a limit bulge 5-6 is arranged on the circumferential surface of the synchronizing wheel 5-5, two limit switches 5-7 are arranged on the mounting rack 5-1, and limit bulges 5-6 on the synchronizing wheel 5-5 touch the two limit switches 5-7 in the rotation process of the main shaft 5-2; the protective frame 5-3 is coated with a polyurethane buffer pad, and the outer part is coated with fabric to form an armpit bracket.
The self-locking mechanism is a gear clutch 5-8; wherein: the structure of the gear clutch 5-8 is as follows: the positioning device comprises an installation shell 5-81, a positioning gear 5-82 is arranged in the installation shell 5-81, the positioning gear 5-82 is rotatably connected with the installation shell 5-81, a main shaft 5-2 penetrates through the installation shell 5-81, the positioning gear 5-82 is sleeved on the main shaft 5-2 and fixedly connected with the main shaft 5-2, at least one positioning column 5-83 is rotatably connected on the installation shell 5-81 at the side edge of the positioning gear 5-82, one end of the positioning column 5-83, far away from the positioning gear 5-82, is rotatably connected with the installation shell 5-81, a plurality of positioning bulges 5-84 are arranged at one end part of the positioning column 5-83, close to the positioning gear 5-82, a pressure spring 5-85 is arranged at the side edge of the positioning column 5-83, and presses the positioning column 5-83 to the positioning gear 5-82 through the pressure spring 5-85 The positioning protrusions 5-84 are matched with the teeth of the positioning gears 5-82, the positioning device further comprises a pull rod 5-11, one end of the pull rod 5-11 is connected with the positioning columns 5-83, the positioning columns 5-83 are separated from the positioning gears 5-82 when the pull rod 5-11 is pulled, the other end of the pull rod 5-11 is connected with a suction block 5-10, the side edges of the suction block 5-10 are provided with electromagnets 5-9, and the electromagnets 5-9 drive the pull rod 5-11 to pull the positioning columns 5-83 to be far away from the positioning gears 5-82 in the suction process of the suction block 5-10.
The number of the positioning columns 5-83 is two, when the positioning protrusions 5-84 at the end parts of the two positioning columns 5-83 are matched with the teeth of the positioning gears 5-82, the two positioning columns 5-83 are arranged in a V shape, the openings of the positioning columns face the positioning gears 5-82, the pressure springs 5-85 are respectively arranged on the outer sides of the two positioning columns 5-83, the inner sides of the two positioning columns 5-83 are provided with press blocks 5-86, the press blocks 5-86 are connected with the pull rods 5-11, and the distance between the positions where the two positioning columns 5-83 are rotatably connected with the mounting shell 5-81 is smaller than the width of the press blocks 5-86 in the same direction.
One end of the seat plate 7 is connected with the base frame 1 through a pin shaft, a telescopic mechanism is arranged between the other end of the seat plate 7 or the middle part of the seat plate 7 and the base frame 1, and the telescopic mechanism drives the seat plate 7 to rotate around the pin shaft.
The base frame 1 is of a U-shaped structure, the base frame 1 below the seat plate 7 is a standing area, and the standing area is vertically communicated.
The tire 8 includes a driving wheel and a driven wheel. Two driving wheels can be selected, the driving wheels are preferably electric wheels, the driving wheels are arranged at the front end of the base frame 1, the number of the driven wheels is two, the two driven wheels are respectively arranged on two sides of the rear end of the base frame 1, and the driven wheels are omni-directional wheels.
Example 2:
as shown in fig. 8, the present embodiment describes a multi-wire rod lifting assisted walking vehicle, which is different from embodiment 1 in that: four outer guide pipes 2-2 and inner guide pipes 2-3 of the multi-screw rod lifting mechanism 2 are arranged in the middle of the base frame 1, namely, the left-right distance between the outer guide pipes 2-2 is reduced, so that a certain distance exists between the outer guide pipes 2-2 at two sides and the left side and the right side of the base frame 1, and a plurality of treading training devices 9 for training the legs of the paralytic patients can be arranged in the range between the outer guide pipes 2-2 and the outer edge of the base frame 1. The treading training device 9 is a bicycle pedal structure, a gear is arranged in the middle of the treading training device, a motor is arranged, the motor drives the pedal to rotate, the feet of a patient can be fixed on the pedal, the motor drives the leg muscles of the patient to move, or the patient forcibly treads the pedal to drive the gear to rotate, and the training purpose is achieved.
Claims (10)
1. A multi-screw rod lifting station-assisting walking-assisting vehicle is characterized in that: the multi-screw lifting mechanism is provided with the lifting platform, the multi-screw lifting mechanism or the lifting platform is provided with the telescopic arm component, the end part of the telescopic arm component is provided with the waist back protection device, the lifting platform is provided with a controller, the controller is used for controlling the tire, the telescopic arm component, the multi-screw lifting mechanism and the waist back protection device to move, and the battery pack provides electric energy for the movement of each component; a seat board is arranged on the base frame; wherein many lead screw elevating system's structure does: at least three vertical upward guide outer tubes are arranged on a base frame at intervals, a guide inner tube is arranged in each guide outer tube, the guide inner tubes and the guide outer tubes are matched and are in sliding connection in the vertical direction, the upper ends of the guide inner tubes are exposed outside the guide outer tubes, a lifting platform is arranged at the top ends of the guide inner tubes, guide screw sleeves are arranged in the guide inner tubes, internal threads are arranged in the guide screw sleeves, lead screws are arranged in the guide screw sleeves, the external threads of the lead screws are matched with the internal threads of the guide screw sleeves, one ends of the lead screws are positioned in the guide screw sleeves, the other ends of the lead screws are positioned outside the guide screw sleeves, the lower ends of the guide screw sleeves are fixed on the guide outer tubes or on a base in the guide outer tubes, optical axes are arranged at the upper ends of the lead screws, and the optical axes on, and a power mechanism is arranged in the lifting platform, the power mechanism is respectively connected to the uppermost end of the screw rod in each guide inner pipe through a rotating shaft, and the rotating shaft is in transmission connection with the screw rod.
2. The multi-screw lifting station-assisting rollator as claimed in claim 1, wherein: the number of the guide outer tubes is four, and the guide outer tubes are arranged on the base frame at intervals in a rectangular shape; power unit includes double-end gear motor, double-end gear motor is last to have two output shafts, and the output speed of two output shafts is unanimous, all be provided with the worm on two output shafts of double-end gear motor, be provided with two pivots on lift platform, the pivot rotates on lift platform to be connected, the worm wheel has been cup jointed in the pivot, every epaxial worm wheel of changeing is connected with one of them worm cooperation on the double-end gear motor respectively, the both ends of pivot extend to the top of the lead screw that corresponds respectively, be provided with the sector gear of mutually supporting between the tip of pivot and the top of lead screw respectively.
3. The multi-screw rod lifting station-assisting rollator as claimed in claim 2, which is characterized in that: the lead screw and the lead screw sleeve have lead screw lead angles smaller than the equivalent friction angle.
4. A multi-wire-rod lifting station-aid rollator as claimed in claim 1, 2 or 3, wherein: the telescopic arm assembly comprises a horizontal slide rail arranged on the multi-screw rod lifting mechanism or the lifting platform and a U-shaped arm arranged on the horizontal slide rail, the U-shaped arm slides on the slide rail, and the telescopic mechanism is arranged between the lifting platform and the U-shaped arm; the waist and back protection device is arranged at the end parts of two sides of the U-shaped arm, and the structure of the waist and back protection device is as follows: the automatic positioning device comprises a mounting rack, the mounting rack is connected to a U-shaped arm, a main shaft in a vertical direction is arranged on the mounting rack, a protective frame is fixed on the main shaft, a motor is arranged on the mounting rack, an output shaft of the motor is in transmission connection with the main shaft, the automatic positioning device further comprises a self-locking mechanism, the self-locking mechanism is used for positioning the main shaft, a synchronizing wheel is arranged on the main shaft, a limiting protrusion is arranged on the circumferential surface of the synchronizing wheel, two limit switches are arranged on the mounting rack, and the limiting protrusion on the synchronizing wheel is in contact with the two limit switches in the rotating process of.
5. The multi-screw lifting station-assisting rollator as claimed in claim 4, wherein: the self-locking mechanism is a worm gear mechanism or a gear clutch or a self-locking motor; wherein: the structure of the gear clutch is as follows: comprises an installation shell, a positioning gear is arranged in the installation shell, the positioning gear is rotationally connected with the installation shell, a main shaft penetrates through the installation shell, the positioning gear is sleeved on the main shaft and is fixedly connected with the main shaft, at least one positioning column is rotatably connected on the mounting shell at the side edge of the positioning gear, one end of the positioning column, which is far away from the positioning gear, is rotatably connected with the mounting shell, a plurality of positioning bulges are arranged at the end part of one end of the positioning column, which is close to the positioning gear, a pressure spring is arranged at the side edge of the positioning column, the pressure spring presses the positioning column to the positioning gear to enable the positioning bulge on the positioning column to be matched with the teeth of the positioning gear, the positioning device also comprises a pull rod, one end of the pull rod is connected with the positioning column, the positioning column is enabled to be separated from the positioning gear when the pull rod is pulled, the other end of the pull rod is connected with a suction block, an electromagnet is arranged on the side edge of the suction block, and the electromagnet drives a pull rod to pull the positioning column to be far away from the positioning gear in the suction process of the suction block.
6. The multi-screw lifting station-assisting rollator as claimed in claim 5, wherein: the quantity of reference column is two, and when the location arch of two reference column tip and the gear tooth cooperation of locating gear, two reference columns were the V type setting, and the opening was towards the locating gear, and the pressure spring sets up the outside at two reference columns respectively, is provided with a briquetting in the inboard of two reference columns, and the briquetting is connected with the pull rod, and the interval between the position that two reference columns and installation shell rotate to be connected is less than the width of briquetting in the equidirectional.
7. The multi-screw lifting station-assisting rollator as claimed in claim 1, wherein: one end of the seat board is connected with the base frame through a pin shaft, a telescopic mechanism is arranged between the other end of the seat board or the middle part of the seat board and the base frame, and the telescopic mechanism drives the seat board to rotate around the pin shaft.
8. The multi-screw lifting station-assisting rollator as claimed in claim 1, wherein: the base frame is of a U-shaped structure, the base frame below the seat plate is a standing area, and the standing area is vertically communicated.
9. The multi-screw lifting station-assisting rollator as claimed in claim 1, wherein: the tire comprises a driving wheel and a driven wheel.
10. The multi-screw lifting station-assisting rollator as claimed in claim 1, wherein: a treading training device is arranged on the base frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010338282.1A CN111467197A (en) | 2020-04-26 | 2020-04-26 | Multi-screw rod lifting station-assisting walking-aid vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010338282.1A CN111467197A (en) | 2020-04-26 | 2020-04-26 | Multi-screw rod lifting station-assisting walking-aid vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111467197A true CN111467197A (en) | 2020-07-31 |
Family
ID=71755809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010338282.1A Pending CN111467197A (en) | 2020-04-26 | 2020-04-26 | Multi-screw rod lifting station-assisting walking-aid vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111467197A (en) |
-
2020
- 2020-04-26 CN CN202010338282.1A patent/CN111467197A/en active Pending
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