CN112569055A - Motion switching control equipment for electric wheelchair - Google Patents

Motion switching control equipment for electric wheelchair Download PDF

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Publication number
CN112569055A
CN112569055A CN202110002004.3A CN202110002004A CN112569055A CN 112569055 A CN112569055 A CN 112569055A CN 202110002004 A CN202110002004 A CN 202110002004A CN 112569055 A CN112569055 A CN 112569055A
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CN
China
Prior art keywords
cavity
end wall
shaft
gear
rotating shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110002004.3A
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Chinese (zh)
Inventor
陈晓硕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Qiwu Leaf Trading Co ltd
Original Assignee
Nanjing Qiwu Leaf Trading Co ltd
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Priority to CN202110002004.3A priority Critical patent/CN112569055A/en
Publication of CN112569055A publication Critical patent/CN112569055A/en
Withdrawn legal-status Critical Current

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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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • 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
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • A61G5/061—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps for climbing stairs
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1051—Arrangements for steering
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to the field of electric wheelchair control devices, in particular to an electric wheelchair motion switching control device which comprises a box body and a first cavity fixedly arranged in the box body, wherein a driving screw rod is rotatably arranged between the upper end wall and the lower end wall of the first cavity, the electric wheelchair motion switching control device can realize the control of a vehicle on the ground by using a lifting device, can control the engagement between gears, can realize the switching between the motion on the flat ground and the stair climbing motion by controlling the motion of a rack plate and the motion of a sliding frame by using a braking device, can realize the motion of driving wheels and a walking block by using a transmission device, can realize the climbing of stairs by using the engagement between irregular gears, can realize the prevention of reverse motion of the sliding frame under pressure when climbing the stairs by using the braking device, and can realize the control of each motion process by using the clutch between control shafts, saves a large amount of manpower and simultaneously ensures the safety of people on the wheelchair.

Description

Motion switching control equipment for electric wheelchair
Technical Field
The invention relates to the field of electric wheelchair control devices, in particular to electric wheelchair motion switching control equipment.
Background
The electric wheelchair is formed by superposing a high-performance energy power driving device, an intelligent operating device, a battery and the like on the basis of the traditional manual wheelchair and is formed by modification and upgrading. The novel intelligent wheelchair with the functions of advancing, retreating, steering, standing, lying, and the like can be driven by manually operating the intelligent controller, and is a high-tech product combining the fields of modern precision machinery, intelligent numerical control, engineering mechanics and the like.
The current wheelchair can only walk on a flat ground, can not realize the switching motion between the motion on the flat ground and the motion of climbing stairs, and when the wheelchair needs to go upstairs, the wheelchair needs to be lifted by manpower, which wastes manpower and can cause harm to people sitting on the wheelchair, so that an electric wheelchair motion switching control device is needed to be arranged to improve the problems.
Disclosure of Invention
The invention aims to provide an electric wheelchair motion switching control device which can overcome the defects of the prior art, so that the practicability of the device is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an electric wheelchair motion switching control device, which comprises a box body and a first cavity fixedly arranged in the box body, wherein a driving screw rod is rotatably arranged between the upper end wall and the lower end wall of the first cavity, the driving screw rod is in power connection with a main shaft of a motor, the motor is fixedly arranged on the upper end wall of the first cavity, a worm is fixedly arranged on the outer surface of the driving screw rod in the first cavity, the worm and a worm wheel are in meshing transmission, the worm wheel is fixedly arranged on the outer surface of a worm wheel shaft, the worm wheel shaft is rotatably arranged on the left end wall and the right end wall of the first cavity at the rear side of the driving screw rod in a penetrating manner, meshing transmission cavities are fixedly and symmetrically arranged in the box body at the left side and the right side of the first cavity, lifting devices for lifting wheels are arranged on the outer surfaces of the tail ends at the left side and the right side of the worm wheel shaft, and a, a second cavity is fixedly arranged in the box body on the lower side of the first cavity, a first transmission device used for transmission between the driving screw rod and a sliding frame is fixedly arranged on the outer surface of the driving screw rod in the second cavity, the sliding frame is slidably arranged on the left end wall and the right end wall of the second cavity, a bevel gear cavity is fixedly arranged in the box body on the lower side of the second cavity, a double-sided bevel gear is fixedly arranged on the outer surface of the tail end of the lower side of the driving screw rod in the bevel gear cavity, the double-sided bevel gear is in meshing transmission with a first bevel gear, the first bevel gear is fixedly arranged on the outer surface of a bevel gear shaft, the bevel gear shaft is arranged between the left end wall and the right end wall of the bevel gear cavity in a penetrating and rotating mode, the double-sided bevel gear, the first irregular gear shaft is rotatably arranged between the left end wall and the right end wall of the sliding frame, the outer surfaces of the tail ends of the left side and the right side of the first irregular gear shaft are fixedly provided with first irregular gears, the first irregular gear and the second irregular gear are in meshing transmission, the second irregular gear is fixedly arranged on the outer surface of the second irregular gear shaft, the second irregular gear shafts are arranged on the left end wall and the right end wall of the sliding frame in a left-right symmetrical array, the outer surface of the tail end of one side of the second irregular gear shaft close to the driving screw rod is fixedly provided with a crank, the tail end of the upper side of the crank is fixedly provided with a second transmission device for transmission between the crank and the walking block, and second braking devices for braking the sliding frame are fixedly and bilaterally symmetrically arranged on the left end wall and the right end wall of the second cavity on the lower side of the sliding frame.
Further, the lifting device comprises the worm wheel shaft, a rotating frame is fixedly arranged on the outer surface of the tail ends of the left side and the right side of the worm wheel shaft, a meshing tooth sliding cavity is fixedly arranged in the rotating frame, meshing teeth are slidably arranged in the meshing tooth sliding cavity, the meshing teeth and the meshing tooth sliding cavity are close to the end wall of one side of the worm wheel shaft and are connected through a meshing tooth connecting spring, meshing transmission is carried out between the meshing teeth and the rack plate, the rack plate is slidably arranged on the end wall of the lower side of the meshing transmission cavity, a gear cavity is fixedly arranged in the box body on the lower side of the meshing transmission cavity, a sliding plate is fixedly connected to the outer surface of the end wall of the lower side of the rack plate and is slidably arranged between the left end wall and the right end wall of the gear cavity, a wheel shaft mounting frame is fixedly arranged on, the wheel shaft penetrates through the gear cavity and is slidably mounted on the end wall of one side, away from the second cavity, of the gear cavity, the wheel is fixedly mounted on the outer surface of the tail end of one side, away from the second cavity, of the wheel shaft, the first gear is fixedly mounted on the outer surface of the tail end of one side, away from the wheel, of the wheel shaft, the first gear and the second gear are in meshing transmission, and the second gears are fixedly mounted on the outer surfaces of the tail ends of the left side and the right side of the bevel.
Further, first arresting gear includes the rack plate, the rack plate is kept away from fixed longitudinal symmetry is provided with the brake groove on the end wall of second cavity one side, insert the brake block in the brake groove, brake block fixed mounting is close to at the slide bar the terminal surface in rack plate one side, the rack plate left and right sides the box internal fixation is provided with the braking chamber, slide bar slidable mounting is on the fixed plate, the fixed plate fixed mounting be in between the end wall on the slide bar, the fixed plate with connect spring coupling through the brake block between the brake block, brake block connect spring nested install the surface of slide bar.
Further, first transmission includes the drive lead screw, in the second cavity the surface of drive lead screw rotates and is connected with the nut piece, nut piece slidable mounting is in nut piece sliding cavity, nut piece sliding cavity is fixed to be set up in the last side end wall of carriage, nut piece sliding cavity is kept away from connect spring coupling through nut piece between the end wall of drive lead screw one side.
Further, the second transmission device comprises the crank, a first rotating shaft is fixedly installed at the tail end of the upper side of the crank, a first connecting rod is installed on the outer surface of the first rotating shaft at the front side of the crank in a rotating mode, a second rotating shaft is fixedly installed at the tail end, far away from the first rotating shaft, of the first connecting rod, a first fixing rod is fixedly installed on the outer surface of the tail end of the first rotating shaft at the rear side of the first fixing rod, a second fixing rod is fixedly installed on the outer surface of the second rotating shaft at the rear side of the first fixing rod, a third rotating shaft is fixedly installed at the outer surface of the third rotating shaft at the front side of the first fixing rod, a fourth rotating shaft is fixedly installed at the tail end of the lower side of the second fixing rod, a third fixing rod is fixedly installed on the outer surface of the third rotating shaft at the rear, the outer surface of the fourth rotating shaft of the three rear sides of the fixing rod is connected with a third connecting rod, the outer surface of the tail end of the front side of the third rotating shaft is connected with a second connecting rod in a rotating mode, the outer surface of the first rotating shaft of the front side of the first connecting rod is connected with a rocker, the outer surface of the fifth rotating shaft of the lower side of the rocker is connected with a fifth connecting rod in a rotating mode, the outer surface of the tail end of the third connecting rod is fixedly provided with a first fixing shaft, the outer surface of the three rear sides of the connecting rods is fixedly provided with a traveling plate, the tail end of the lower side of the two connecting rods is fixedly provided with a second fixing shaft, the outer surface of the second fixing shaft is fixedly provided with the traveling plate, and the outer surface of the tail end of.
Furthermore, the second brake device comprises the second cavity, a stop block cavity is fixedly arranged on the left end wall and the right end wall of the second cavity on the lower side of the sliding frame, a stop block is slidably arranged in the stop block cavity, the stop block and the end wall of one side, far away from the second cavity, of the stop block cavity are connected through a stop block connecting spring, the outer surface of the end wall of one side, far away from the second cavity, of the stop block cavity is fixedly connected with the outer surface of the end wall of the upper side of the rack plate, a conical groove is fixedly arranged on the end wall of the lower side of the stop block, a conical block is inserted in the conical groove and is slidably arranged in a conical block sliding cavity, the conical block sliding cavity is fixedly arranged in the box body on the lower side of the stop block cavity, and the conical block and the end wall of the lower side of the conical block sliding, the outer surface of the lower side end wall of the conical block is fixedly connected with a wire rope, and the tail end of one side, far away from the conical block, of the wire rope is fixedly connected with the upper side end wall of the sliding plate.
The invention has the beneficial effects that: the utility model provides an electric wheelchair motion switching controlgear, can realize utilizing elevating gear to control the vehicle and move on the ground, and can control the meshing between the gear, can realize utilizing the motion of arresting gear control rack board and the motion of carriage to realize moving on the level land and climb the switching between the stair motion, can realize utilizing transmission to drive wheel and walking block motion, can realize utilizing the meshing between the irregular gear to realize walking block motion and climb the stair, can realize utilizing arresting gear to prevent that the carriage from receiving pressure reverse motion when climbing the stair, can realize utilizing the separation and reunion between the control axis to control each action process, a large amount of manpowers have been saved, the safety of people on the wheelchair has also been ensured simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic overall structure diagram of an electric wheelchair motion switching control device of the invention.
Fig. 2 is a schematic view of the structure a-a in fig. 1.
FIG. 3 is a schematic diagram of B-B in FIG. 1.
Fig. 4 is an enlarged schematic view of C in fig. 1.
Fig. 5 is an enlarged schematic view of D in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The movement switching control device of the electric wheelchair described with reference to fig. 1 to 5 includes a box 11 and a first cavity 12 fixedly disposed in the box 11, a driving screw 33 is rotatably mounted between upper and lower end walls of the first cavity 12, the driving screw 33 is in power connection with a main shaft of a motor 73, the motor 73 is fixedly mounted on an upper end wall of the first cavity 12, a worm 49 is fixedly mounted on an outer surface of the driving screw 33 in the first cavity 12, the worm 49 and a worm wheel 50 are in meshing transmission, the worm wheel 50 is fixedly mounted on an outer surface of a worm wheel shaft 16, the worm wheel shaft 16 is rotatably mounted on left and right end walls of the first cavity 12 at a rear side of the driving screw 33, meshing transmission cavities 18 are fixedly and symmetrically disposed in the box 11 at left and right sides of the first cavity 12, and lifting devices 100 for lifting wheels 36 are mounted on outer surfaces of left and right ends of the worm wheel shaft 16, the utility model discloses a braking device for the braking of rack board 19, meshing transmission chamber 18 downside the fixed mounting has a first arresting gear 101 that is used for in the box 11 of meshing transmission chamber 18 the internal fixation of box 11, first cavity 12 downside the internal fixation of box 11 is provided with second cavity 14, in the second cavity 14 the surface fixed mounting of drive screw 33 has and is used for the driven first transmission device 102 between drive screw 33 and the carriage 13, carriage 13 slidable mounting is in on the left and right ends wall of second cavity 14, second cavity 14 downside the internal fixation of box 11 is provided with bevel gear chamber 31, in the bevel gear chamber 31 the terminal surface fixed mounting of downside of drive screw 33 has double bevel gear 32, meshing transmission between double bevel gear 32 and the first bevel gear 30, first bevel gear 30 fixed mounting is at the surface of bevel gear axle 28, bevel gear axle 28 runs through to rotate and presses the chapter and installs between the left and right ends wall of bevel gear chamber 31, the double-sided bevel gear 32 and the bevel gear 29 are in meshing transmission, the bevel gear 29 is fixedly arranged on the outer surface of a first irregular gear shaft 15, the first irregular gear shaft 15 is rotatably arranged between the left and right end walls of the sliding frame 13, the outer surfaces of the left and right tail ends of the first irregular gear shaft 15 are fixedly provided with first irregular gears 41, the first irregular gears 41 and second irregular gears 51 are in meshing transmission, the second irregular gears 51 are fixedly arranged on the outer surface of a second irregular gear shaft 40, the second irregular gear shafts 40 are symmetrically arranged on the left and right end walls of the sliding frame 13 in a left-right array manner, the outer surface of the tail end of one side of the second irregular gear shaft 40 close to the driving screw 33 is fixedly provided with a crank 56, and the tail end of the upper side of the crank 56 is fixedly provided with a second transmission device 103 for transmission between the crank 56 and the, a second braking device 104 for braking the sliding frame 13 is fixed on the left and right end walls of the second cavity 14 at the lower side of the sliding frame 13 in a left-right symmetrical mode.
Advantageously, the lifting device 100 comprises the worm wheel shaft 16, a rotating frame 65 is fixedly installed on the outer surface of the end of each of the left and right sides of the worm wheel shaft 16, a meshing tooth sliding cavity 62 is fixedly arranged in the rotating frame 65, a meshing tooth 64 is slidably installed in the meshing tooth sliding cavity 62, the meshing tooth 64 is connected with the end wall of the meshing tooth sliding cavity 62 close to one side of the worm wheel shaft 16 through a meshing tooth connecting spring 66, meshing transmission is performed between the meshing tooth 64 and the rack plate 19, the rack plate 19 is slidably installed on the end wall of the lower side of the meshing transmission cavity 18, a gear cavity 26 is fixedly arranged in the box body 11 on the lower side of the meshing transmission cavity 18, a sliding plate 24 is fixedly connected with the outer surface of the end wall of the lower side of the rack plate 19, the sliding plate 24 is slidably installed between the end wall of the left and right side of the gear cavity 26, the end of the lower side of the wheel axle mounting bracket 25 is rotatably provided with a wheel axle 35, the wheel axle 35 is slidably mounted on the end wall of one side of the gear cavity 26 far away from the second cavity 14 in a penetrating manner, the outer surface of the end of one side of the wheel axle 35 far away from the second cavity 14 is fixedly provided with the wheel 36, the outer surface of the end of one side of the wheel axle 35 far away from the wheel 36 is fixedly provided with a first gear 34, the first gear 34 and a second gear 27 are in meshing transmission, and the second gear 27 is fixedly mounted on the outer surfaces of the ends of the left side and the right side of the bevel.
Advantageously, the first brake device 101 includes the rack plate 19, the rack plate 19 is provided with brake grooves 23 fixed on the end wall of the rack plate 19 far from the second cavity 14 in a vertically symmetrical manner, brake shoes 20 are inserted into the brake grooves 23, the brake shoes 20 are fixedly mounted on the outer surface of the end of the slide rod 38 close to the rack plate 19, brake chambers 39 are fixedly provided in the housing 11 on the left and right sides of the rack plate 19, the slide rod 38 is slidably mounted on a fixed plate 22, the fixed plate 22 is fixedly mounted between the upper and lower end walls of the slide rod 38, the fixed plate 22 and the brake shoes 20 are connected by a shoe connecting spring 21, and the shoe connecting spring 21 is mounted on the outer surface of the slide rod 38 in a nested manner.
Advantageously, the first transmission 102 comprises the driving screw 33, a nut block 68 is rotatably connected to the outer surface of the driving screw 33 in the second cavity 14, the nut block 68 is slidably mounted in a nut block sliding cavity 67, the nut block sliding cavity 67 is fixedly arranged in the upper end wall of the sliding frame 13, and the end wall of the nut block sliding cavity 67 on the side far away from the driving screw 33 is connected through a nut block connecting spring 69.
Advantageously, the second transmission device 103 comprises the crank 56, a first rotating shaft 52 is fixedly installed at the end of the upper side of the crank 56, a first connecting rod 48 is rotatably installed on the outer surface of the first rotating shaft 52 at the front side of the crank 56, a second rotating shaft 47 is fixedly installed at the end of the first connecting rod 48 far away from the first rotating shaft 52, a first fixing rod 46 is fixedly installed on the outer surface of the end of the rear side of the first connecting rod 48, a second fixing rod 53 is fixedly installed on the outer surface of the second rotating shaft 47 at the rear side of the first fixing rod 46, a third rotating shaft 45 is fixedly installed on the outer surface of the first fixing rod 46 far away from the second rotating shaft 47, a second connecting rod 44 is rotatably installed on the outer surface of the third rotating shaft 45 at the front side of the first fixing rod 46, a fourth rotating shaft 55 is fixedly installed at the end of the lower side, the tail end of one side, far away from the third rotating shaft 45, of the third fixing rod 54 is fixedly connected with the fourth rotating shaft 55, the outer surface of the fourth rotating shaft 55 at the rear side of the third fixing rod 54 is rotatably connected with a third connecting rod 61, the outer surface of the tail end of the front side of the third rotating shaft 45 is rotatably provided with a second connecting rod 44, the outer surface of the first rotating shaft 52 at the front side of the first connecting rod 48 is rotatably provided with a rocker 57, the tail end of the lower side of the rocker 57 is fixedly arranged on the outer surface of a fifth rotating shaft 58, the fifth rotating shaft 58 is rotatably arranged on the outer surface of the third connecting rod 61, the outer surface of the tail end of the lower side of the third connecting rod 61 is fixedly provided with a first fixing shaft 59, the outer surface of the first fixing shaft 59 at the rear side of the third connecting rod 61 is fixedly provided with a traveling plate 42, the tail end of the, the outer surface of the lower end of the walking plate 42 is fixedly provided with the walking block 60.
Advantageously, the second brake device 104 includes the second cavity 14, a stopper cavity 76 is fixedly disposed on the left and right end walls of the second cavity 14 on the lower side of the sliding frame 13, a stopper 70 is slidably mounted in the stopper cavity 76, the stopper 70 is connected with the end wall of the stopper cavity 76 on the side away from the second cavity 14 through a stopper connecting spring 77, an elastic cord 17 is fixedly connected to the outer surface of the end wall of the stopper 70 on the side away from the second cavity 14, the end of the elastic cord 17 on the side away from the stopper 70 is fixedly connected with the outer surface of the end wall of the upper side of the rack plate 19, a tapered groove 71 is fixedly disposed on the end wall of the lower side of the stopper 70, a tapered block 72 is inserted in the tapered groove 71, the tapered block 72 is slidably mounted in a tapered block sliding cavity 75, the tapered block sliding cavity 75 is fixedly disposed in the box 11 on the lower side, the conical block 72 is connected with the lower end wall of the conical block sliding cavity 75 through a conical block connecting spring 74, the outer surface of the lower end wall of the conical block 72 is fixedly connected with a wire 37, and the end, far away from the conical block 72, of the wire 37 is fixedly connected with the upper end wall of the sliding plate 24.
The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.
In the initial state: the brake shoe 20 is caught in the brake shoe 20 at the upper side, the wire 37 is released, the tapered shoe coupling spring 74 is released, the tapered shoe 72 is caught in the tapered groove 71, the shoe coupling spring 77 is released, and the elastic cord 17 is released.
Sequence of mechanical actions of the whole device:
when the device works, the device moves on the flat ground, the motor 73 is started, the driving screw 33 is driven to rotate, the double-sided bevel gear 32 is driven to rotate by friction, the double-sided bevel gear 32 and the first bevel gear 30 are in meshing transmission, the bevel gear shaft 28 is driven to rotate, the second gear 27 and the first gear 34 are in meshing transmission, the wheel shaft 35 is driven to rotate, and the wheel 36 is driven to rotate, so that the device moves.
When climbing stairs, manually pulling the slide rod 38 to disengage the brake block 20 from the brake slot 23, thereby compressing the brake block connecting spring 21, rotating the driving screw 33, thereby rotating the worm 49, engaging the worm 49 with the worm wheel 50, thereby rotating the worm wheel shaft 16, thereby rotating the rotating frame 65, thereby rotating the engaging teeth 64, engaging the engaging teeth 64 with the rack plate 19, thereby moving the slide plate 24 upward, thereby moving the wheel shaft mounting bracket 25 upward, thereby moving the wheel shaft 35 upward, thereby disengaging the first gear 34 from the second gear 27, and moving the rack plate 19 upward, thereby moving the brake groove 23 upward, and due to the action of the brake shoe connecting spring 21, the brake shoe 20 is driven to be caught in the brake groove 23 on the lower side, so that the rack plate 19 is not moved upward any more, thereby making a reciprocating motion in the engaging tooth sliding chamber 62.
The slide plate 24 moves upward to tighten the wire 37, so that the tapered block 72 moves downward to be disengaged from the tapered groove 71, the rack plate 19 moves upward to tighten and then loosen the elastic cord 17, the driving screw 33 is rotatably connected to the nut block 68 to move the carriage 13 downward, so that the first irregular gear shaft 15 moves downward, the first irregular gear shaft 15 moves downward to drive the bevel gear pair 29 to move downward to be engaged with the double-sided bevel gear 32, and the carriage 13 moves downward to drive the traveling plate 42 to move downward to support the traveling block 60 to move downward.
The downward movement of the carriage 13 contacts the dog 70 to press the dog 70 into the dog chamber 76, and when the bevel gear pair 29 engages the double-sided bevel gear 32, the carriage 13 moves downwardly to the limit position, the dog 70 moves out of the dog chamber 76 to catch the upper end wall of the carriage 13, preventing the carriage 13 from sliding upwardly, and the carriage 13 stops moving, thereby allowing the nut block 68 to reciprocate in the wire 37.
The driving screw 33 rotates to drive the double-sided bevel gear 32 to rotate, the meshing transmission between the double-sided bevel gear 32 and the bevel gear II 29 drives the first irregular gear shaft 15 to rotate, the first irregular gear 41 is driven to rotate, the meshing transmission between the first irregular gear 41 and the second irregular gear 51 is driven to rotate, the second irregular gear shaft 40 is driven to rotate, the crank 56 is driven to rotate, the rotating shaft I52 is driven to rotate, the connecting rod I48 and the rocker 57 are driven to move, the connecting rod I48 is driven to move, the fixing rod I46 and the fixing rod II 53 and the fixing rod III 54 are driven to move, the connecting rod II 44 and the connecting rod III 61 are driven to move, and the rocker 57 is driven to rotate, the rotating shaft V58 is driven to move, so that the third connecting rod 61 moves, the third connecting rod 61 moves to drive the first fixed shaft 59 to move, the second connecting rod 44 moves to drive the second fixed shaft 43 to move, and the second fixed shaft 43 and the first fixed shaft 59 act together to drive the walking plate 42 to move, so that the walking block 60 is driven to move, and the device is driven to climb stairs.
When the flat ground needs to be moved, the sliding rod 38 is pulled manually, the motor 73 is started to rotate reversely, thereby moving the wheels 36 downward, the motor 73 rotates reversely, thereby moving the rack plate 19 downward, so that the elastic cord 17 is tightened and then loosened, and when the elastic cord 17 is tightened, the stopper 70 is moved into the stopper cavity 76, the motor 73 rotates reversely, thereby driving the sliding frame 13 to move up and down, so that the walking block 60 moves upwards to reset, when the elastic rope 17 is loosened, the stopper 70 is moved out of the stopper chamber 76 by the stopper connecting spring 77, the slide plate 24 is moved downward, the cord 37 is loosened, the tapered block 72 is driven to move upwards to be inserted into the tapered groove 71 due to the action of the tapered block connecting spring 74.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides an electronic wheelchair motion switching controlgear, includes the box and the box internal fixation is provided with first cavity, its characterized in that: a driving screw rod is rotatably arranged between the upper end wall and the lower end wall of the first cavity, the driving screw rod is in power connection with a main shaft of a motor, the motor is fixedly arranged on the upper end wall of the first cavity, a worm is fixedly arranged on the outer surface of the driving screw rod in the first cavity, the worm and a worm wheel are in meshing transmission, the worm wheel is fixedly arranged on the outer surface of a worm wheel shaft, the worm wheel shaft is rotatably arranged on the left end wall and the right end wall of the first cavity behind the driving screw rod in a penetrating manner, meshing transmission cavities are symmetrically arranged in the box body on the left side and the right side of the first cavity, lifting devices for lifting wheels are arranged on the outer surfaces of the tail ends of the left side and the right side of the worm wheel shaft, a first braking device for braking a rack plate is fixedly arranged in the box body on the lower side of the meshing transmission cavities, a, the outer surface of the driving screw rod in the second cavity is fixedly provided with a first transmission device for transmission between the driving screw rod and a sliding frame, the sliding frame is slidably arranged on the left end wall and the right end wall of the second cavity, the box body at the lower side of the second cavity is internally and fixedly provided with a bevel gear cavity, the outer surface of the tail end of the lower side of the driving screw rod in the bevel gear cavity is fixedly provided with a double-sided bevel gear, the double-sided bevel gear is in meshing transmission with a bevel gear I which is fixedly arranged on the outer surface of a bevel gear shaft, the bevel gear shaft is arranged between the left end wall and the right end wall of the bevel gear cavity in a penetrating and rotating manner, the double-sided bevel gear is in meshing transmission with a bevel gear II which is fixedly arranged on the outer surface of a first irregular gear shaft, the terminal surface fixed mounting in the left and right sides of first irregular gear shaft has first irregular gear, mesh transmission between first irregular gear and the second irregular gear, second irregular gear fixed mounting is at the surface of the irregular gear shaft of second, second irregular gear shaft bilateral symmetry array is installed on the end wall about the carriage, the irregular gear shaft of second is close to the terminal surface fixed mounting in driving screw one side has the crank, the terminal fixed mounting of articulate upside has and is used for driven second transmission between crank and the walking piece, the carriage downside fixed bilateral symmetry is installed on the end wall about the second cavity and is used for the second arresting gear of carriage braking.
2. The electric wheelchair motion switching control apparatus as claimed in claim 1, wherein: the lifting device comprises the worm wheel shaft, a rotating frame is fixedly arranged on the outer surface of the tail ends of the left side and the right side of the worm wheel shaft, a meshing tooth sliding cavity is fixedly arranged in the rotating frame, meshing teeth are slidably arranged in the meshing tooth sliding cavity, the meshing teeth and the meshing tooth sliding cavity are close to the end wall of one side of the worm wheel shaft and are connected through a meshing tooth connecting spring, meshing transmission is carried out between the meshing teeth and the rack plate, the rack plate is slidably arranged on the lower side end wall of the meshing transmission cavity, a gear cavity is fixedly arranged in the box body on the lower side of the meshing transmission cavity, a sliding plate is fixedly connected to the outer surface of the lower side end wall of the rack plate and is slidably arranged between the left end wall and the right end wall of the gear cavity, a wheel shaft mounting frame is fixedly arranged on the outer, the wheel shaft penetrates through the gear cavity and is slidably mounted on the end wall of one side, away from the second cavity, of the gear cavity, the wheel is fixedly mounted on the outer surface of the tail end of one side, away from the second cavity, of the wheel shaft, the first gear is fixedly mounted on the outer surface of the tail end of one side, away from the wheel, of the wheel shaft, the first gear and the second gear are in meshing transmission, and the second gears are fixedly mounted on the outer surfaces of the tail ends of the left side and the right side of the bevel.
3. The electric wheelchair motion switching control apparatus as claimed in claim 1, wherein: first arresting gear includes the rack plate, the rack plate is kept away from fixed longitudinal symmetry is provided with the brake groove on the end wall of second cavity one side, insert the brake block in the brake groove, brake block fixed mounting is close to at the slide bar the terminal surface in rack plate one side, the rack plate left and right sides the box internal fixation is provided with the braking chamber, slide bar slidable mounting is on the fixed plate, the fixed plate fixed mounting be in between the end wall on the slide bar, the fixed plate with connect spring coupling through the brake block between the brake block, brake block connect spring nested install the surface of slide bar.
4. The electric wheelchair motion switching control apparatus as claimed in claim 1, wherein: first transmission includes the drive lead screw, in the second cavity the surface of drive lead screw rotates and is connected with the nut piece, nut piece slidable mounting is in nut piece sliding cavity, nut piece sliding cavity is fixed to be set up in the side end wall of going up of carriage, nut piece sliding cavity is kept away from connect spring coupling through nut piece between the end wall of drive lead screw one side.
5. The electric wheelchair motion switching control apparatus as claimed in claim 1, wherein: the second transmission device comprises the crank, a first rotating shaft is fixedly installed at the tail end of the upper side of the crank, a first connecting rod is installed on the outer surface of the first rotating shaft at the front side of the crank in a rotating mode, a second rotating shaft is fixedly installed at the tail end of one side, far away from the first rotating shaft, of the first connecting rod, a first fixing rod is fixedly installed on the outer surface of the tail end of the rear side of the first connecting rod, a second fixing rod is fixedly installed on the outer surface of the second rotating shaft at the rear side of the first fixing rod, a third rotating shaft is fixedly installed at the outer surface of one side, far away from the second rotating shaft, of the first rotating shaft, a second connecting rod is rotatably installed at the outer surface of the third rotating shaft at the front side of the first fixing rod, a fourth rotating shaft is fixedly installed at the tail end, the outer surface of the fourth rotating shaft of the three rear sides of the fixing rod is connected with a third connecting rod, the outer surface of the tail end of the front side of the third rotating shaft is connected with a second connecting rod in a rotating mode, the outer surface of the first rotating shaft of the front side of the first connecting rod is connected with a rocker, the outer surface of the fifth rotating shaft of the lower side of the rocker is connected with a fifth connecting rod in a rotating mode, the outer surface of the tail end of the third connecting rod is fixedly provided with a first fixing shaft, the outer surface of the three rear sides of the connecting rods is fixedly provided with a traveling plate, the tail end of the lower side of the two connecting rods is fixedly provided with a second fixing shaft, the outer surface of the second fixing shaft is fixedly provided with the traveling plate, and the outer surface of the tail end of.
6. The electric wheelchair motion switching control apparatus as claimed in claim 1, wherein: the second brake device comprises the second cavity, a stop block cavity is fixedly arranged on the left end wall and the right end wall of the second cavity on the lower side of the sliding frame, a stop block is slidably arranged in the stop block cavity, the stop block and the end wall of one side, far away from the second cavity, of the stop block cavity are connected through a stop block connecting spring, the outer surface of the end wall of one side, far away from the second cavity, of the stop block cavity is fixedly connected with an elastic rope, the end, far away from one side, of the stop block is fixedly connected with the outer surface of the end wall of the upper side of the rack plate, a conical groove is fixedly arranged on the end wall of the lower side of the stop block, a conical block is inserted in the conical groove and is slidably arranged in a conical block sliding cavity, the conical block sliding cavity is fixedly arranged in the box body on the lower side, the outer surface of the lower side end wall of the conical block is fixedly connected with a wire rope, and the tail end of one side, far away from the conical block, of the wire rope is fixedly connected with the upper side end wall of the sliding plate.
CN202110002004.3A 2021-01-04 2021-01-04 Motion switching control equipment for electric wheelchair Withdrawn CN112569055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110002004.3A CN112569055A (en) 2021-01-04 2021-01-04 Motion switching control equipment for electric wheelchair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110002004.3A CN112569055A (en) 2021-01-04 2021-01-04 Motion switching control equipment for electric wheelchair

Publications (1)

Publication Number Publication Date
CN112569055A true CN112569055A (en) 2021-03-30

Family

ID=75145357

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110002004.3A Withdrawn CN112569055A (en) 2021-01-04 2021-01-04 Motion switching control equipment for electric wheelchair

Country Status (1)

Country Link
CN (1) CN112569055A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113797035A (en) * 2021-10-12 2021-12-17 温州医科大学 Multifunctional lifting chair for old people

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113797035A (en) * 2021-10-12 2021-12-17 温州医科大学 Multifunctional lifting chair for old people
CN113797035B (en) * 2021-10-12 2023-09-15 温州医科大学 Multifunctional lifting chair for old people

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Application publication date: 20210330