CN111888114A

CN111888114A - All-terrain multifunctional wheelchair

Info

Publication number: CN111888114A
Application number: CN202010775627.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Changsha Ninghu Machinery Equipment Co ltd
Current assignee: Changsha Ninghu Machinery Equipment Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2020-11-06

Abstract

The invention discloses an all-terrain multifunctional wheelchair, which comprises a saddle, wherein one end of the saddle is fixedly provided with an angle adjusting mechanism convenient for adjusting the lying and leaning angle, one ends of two sides of the saddle, far away from the angle adjusting mechanism, are symmetrically and rotatably connected with a front adjusting mechanism, one end of the bottom of the saddle, close to the angle adjusting mechanism, is symmetrically and fixedly provided with a rear adjusting mechanism, the angle adjusting mechanism comprises a backrest, an adjusting plate, a sliding cylinder and a sliding hole, the bottom of one end of the saddle is rotatably connected with the backrest through a shaft pin, the two sides of the backrest are symmetrically and fixedly provided with the adjusting plate, one end of the adjusting plate is fixedly provided with the sliding cylinder, the adjusting plate is positioned on the inner side of the sliding cylinder and provided with the sliding hole, the angle adjusting mechanism also comprises a limiting column, a spring and a limiting groove, and the inner wall of the sliding hole is slidably connected, providing convenience for the user to go out.

Description

All-terrain multifunctional wheelchair

Technical Field

The invention relates to the technical field of wheelchairs, in particular to an all-terrain multifunctional wheelchair.

Background

The wheelchair is a chair provided with wheels and capable of helping to replace walking, is divided into electric and manual folding wheelchairs and is an important moving tool for home rehabilitation, turnover transportation, diagnosis and outing activities of wounded persons, patients and disabled persons, not only meets the needs of physically disabled persons and mobility-handicapped persons, but also is more important to facilitate the movement and care of the families and enables the patients to exercise and participate in social activities by means of the wheelchair, the common wheelchair generally comprises a foldable frame, front and rear wheels, left and right kneepads, pedals, left and right detachable armrests, a handle brake device, a seat, a backrest, a medical image data bag, a bedpan, a urine receiving bag hook, an electric standing part and the like, a hand-operated device is added on the basis of the common wheelchair, an electronic power assisting system is added on the basis of the common wheelchair, the physical consumption of the users is reduced, on the basis of the electric wheelchair, the intelligent wheelchair is additionally provided with positioning movement, standing movement, remote control movement and related Internet + assisted life, but the conventional wheelchair can be used only on flat ground, and cannot be well used when encountering stairs or rugged road surfaces, so that great trouble can be brought to a user.

Disclosure of Invention

The invention aims to provide an all-terrain multifunctional wheelchair to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multi-functional wheelchair of full topography, includes the saddle, the one end of saddle is fixed with the angle adjustment mechanism who is convenient for adjust and lies by the angle, the one end symmetry that angle adjustment mechanism was kept away from to the both sides of saddle rotates and is connected with anterior adjustment mechanism, the one end symmetry that the bottom of saddle is close to angle adjustment mechanism is fixed with rear portion adjustment mechanism, angle adjustment mechanism includes back, regulating plate, a sliding barrel and slip hole, the bottom of saddle one end is rotated through the pivot and is connected with the back, the bilateral symmetry of back is fixed with the regulating plate, the one end of regulating plate is fixed with a sliding barrel, the slip hole has been seted up to the inboard that the regulating plate is located a sliding barrel.

Preferably, angle adjustment mechanism still includes spacing post, spring and spacing groove, the inner wall sliding connection in slip hole has spacing post, the one end that spacing post is close to the regulating plate is fixed with the spring, the one end that the regulating plate was kept away from to the spring is fixed with the inner wall of a slip section of thick bamboo, the spacing groove has been seted up to the bilateral symmetry equidistance of saddle, spacing post and the spacing groove joint on the saddle.

Preferably, the front adjusting mechanism comprises a first motor, a rocker, a connecting piece, a sleeve, a power rod, a stop block, a front leg frame, a front wheel guard plate, a front wheel, a sliding chute, a winch, an arc-shaped groove, movable teeth, a rotating strip, an adjusting wrench and a blocking strip, wherein the first motor is symmetrically fixed at one end of the bottom of the seat close to the backrest, the rocker is fixed at the output end of the first motor, the connecting piece is rotatably connected at one end of the rocker far away from the first motor through a shaft pin, the sleeve is rotatably connected at the bottoms of two sides of the seat through the shaft pin symmetrically, the power rod is slidably connected with the inner wall of the sleeve, one end of the connecting piece far away from the rocker is rotatably connected with the power rod through the shaft pin, the stop block is fixed at one end of the power rod close to the sleeve, the two sides of the seat are rotatably connected with the front leg frame, the outside that the one end of power pole was kept away from to preceding leg frame is fixed with the front wheel backplate, the outside that preceding leg frame is close to front wheel backplate one end is rotated through the bearing and is connected with the front wheel, the spout has been seted up to the equidistance all around of front wheel inner circle, the inside of front wheel is rotated through the bearing and is connected with the capstan winch, the arc-shaped groove has been seted up to one side equidistance that preceding leg frame was kept away from to the capstan winch, the inner wall sliding connection of spout has the movable tooth, the movable tooth is close to the inner wall sliding connection of capstan winch one end and arc-shaped groove, one side that preceding leg frame was kept away from to the capstan winch is fixed with the rotation strip, the one end that preceding leg frame was kept away from to the rotation strip is passed the front.

Preferably, the rear adjusting mechanism comprises a second motor, a driving gear, a rear wheel power rod, a distance piece, a rear wheel hinge support, a driven gear, a rear wheel support rod and a rear wheel, wherein the second motor is symmetrically fixed at one end of the bottom of the seat close to the first motor, the driving gear is fixed at the output end of the second motor, the rear wheel power rod is fixed at the output end of the second motor after passing through the driving gear, the output end of the second motor passes through the rear wheel power rod and is rotatably connected with the distance piece through a bearing, the inner side of one end of the distance piece far away from the second motor is rotatably connected with the rear wheel hinge support through a shaft pin, the driven gear is fixed at the inner side of one end of the rear wheel hinge support close to the distance piece and is in meshed connection with the driving gear, and the rear wheel power rod and one end of the rear wheel hinge support far away from the driving gear are rotatably connected with, and one end of the rear wheel supporting rod, which is far away from the rear wheel power rod, is rotatably connected with a rear wheel through a shaft pin.

Preferably, first clamping grooves are symmetrically formed in the lower portion of the middle portion of the saddle, the inner walls of the first clamping grooves are connected with the storage box in a sliding mode, second clamping grooves are symmetrically formed in the middle portion of the saddle and located right above the first clamping grooves, and cover plates are connected to the inner walls of the second clamping grooves in a sliding mode.

Preferably, the bottom of saddle is kept away from the one end symmetry of first motor and is fixed with the battery, the bottom that the battery is close to second motor one end is fixed with anticollision piece, and anticollision piece and rear wheel power pole cooperate.

Preferably, first stopping pieces are symmetrically fixed at one ends of two sides of the saddle close to the front wheel, a second stopping piece is fixed at the middle part of the front leg frame, and the first stopping pieces are matched with the second stopping pieces.

Preferably, a control panel is fixed at one end of one side of the top of the seat, which is close to the front wheel, and the control panel is electrically connected with the first motor and the second motor.

Compared with the prior art, the invention has the beneficial effects that:

when the invention is used, when the wheelchair runs on a flat road surface, the first motor is driven to drive the rocker to rotate, so as to drive the connecting piece to rotate, at the moment, the angle between the rocker and the connecting piece is reduced, the power rod is indirectly driven to move forwards, under the action of the sleeve, the power rod pushes the front leg frame to downwardly steer the front wheel to the wheelchair, when the stop block on the power rod is contacted with the sleeve, the vertical height between the front wheel and the seat is maximized, the second motor is driven to drive the rear wheel power rod to rotate anticlockwise, the rear wheel support rod generates a downward movement trend under the drive of the rear wheel power rod, because the driving gear is fixed and not moved, the angle between the rear wheel support and the distance piece is changed due to the meshing between the gears in the upward movement process of the rear wheel support rod, the rear wheel support rod and the rear wheel support rod, and the distance piece form a quadrangle, when the angle between the rear wheel power rod and the distance piece is reduced along with the rotation of the second motor, the rear wheel power rod, the rear wheel bracing piece, the rear wheel hank is propped up, shrink to the saddle lower part, the vertical distance between rear wheel and saddle reduces, when rear wheel power rod contact anti-collision piece, the vertical distance of rear wheel and saddle reduces to the minimum, at this moment, the wheelchair is in the level land mode of traveling, when the wheelchair user is when outdoor trip, can meet the step unavoidably, the stone, wait to exceed the ground dozens of centimetres road conditions, lean on the drive power of ordinary tire this moment, the barrier is difficult to be crossed to the wheelchair, at this moment, first motor drives the rocker anticlockwise rotation, the connecting piece moves to the wheelchair rear under the drive of rocker, the power rod is under the traction of connecting piece, through the sleeve rearward movement, thereby drive the clockwise rotation of front leg frame, at this moment, the front wheel is along with the front leg frame to the motion of wheelchair the place ahead, the vertical distance of front wheel and saddle. Meanwhile, the second motor drives the rear wheel power rod to rotate anticlockwise, the angle between the rear wheel hinge support and the distance piece is increased, the angle between the rear wheel support rod and the rear wheel power rod is increased, the vertical distance between the intersection point of the rear wheel support rod and the rear wheel hinge support and the axis of the second motor is gradually increased, the vertical distance between the rear wheel and the seat is increased under the action, the vertical distance between the two front wheels of the wheelchair and the seat is smaller, the vertical distance between the two rear wheels and the seat is larger, and a height difference is formed between the two rear wheels and the two front wheels, under the state, a plane formed by tangent lines of the front wheel set and the rear wheel set is almost the same as a step gradient, so that when going upstairs, the comfort of a wheelchair rider can be ensured, the vehicle body is stable, when the power of the front two front wheels of the wheelchair is insufficient, the adjusting wrench is pulled out from the back of a barrier strip along the direction vertical to the front wheel set, because of adjusting the spanner and linking to each other with the inside capstan winch of front wheel, adjust the spanner through rotating and make the inside capstan winch anticlockwise rotation of wheel, can only move in the spout that corresponds in the front wheel because of the movable tooth, and the movable tooth is close to the circular bulge on one end of wheel center, with the circular arc groove sliding connection of capstan winch, therefore, at capstan winch anticlockwise rotation's in-process, 12 movable teeth on the front wheel shrink to the wheel center gradually, the front wheel not only advances through the frictional force between tire and ground this moment, also can produce a power to the barrier through the both sides of the vacant position that the tire shrink produced, thereby cross the barrier more easily. Often meet the height at the wheelchair user in the open air and be high inadequately, perhaps lead to the field of vision too little problem when more around, at this moment, the first motor of drive drives rocker anticlockwise rotation, and the connecting piece moves to the wheelchair rear under the drive of rocker, and the power pole is through sleeve rearward movement under the traction of connecting piece to leg frame clockwise turning before driving, at this moment, the front wheel is along with preceding leg frame to the motion of wheelchair the place ahead, and the vertical distance of front wheel and saddle reduces. Meanwhile, the second motor drives the rear wheel power rod to rotate anticlockwise, the angle between the rear wheel hinge support and the distance piece is increased, the angle between the rear wheel support rod and the rear wheel power rod is increased, the vertical distance between the intersection point of the rear wheel support rod and the rear wheel hinge support and the axis of the second motor is gradually increased, the vertical distance between the rear wheel and the seat is increased under the action, the vertical distance between the two front wheels of the wheelchair and the seat is smaller, the vertical distance between the two rear wheels and the seat is larger, and the four wheels are in contact with the ground.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the invention at A;

FIG. 3 is a schematic view of the position structure of the front wheel fender of the present invention;

FIG. 4 is an enlarged view of the invention at B;

FIG. 5 is a schematic view of the internal structure of the angle adjustment mechanism of the present invention;

FIG. 6 is an enlarged view of the invention at C;

FIG. 7 is a schematic view of the storage box according to the present invention;

FIG. 8 is an enlarged view of the invention at D;

fig. 9 is a schematic diagram of a position structure of the limiting groove of the present invention.

In the figure: 1. a vehicle seat; 2. an angle adjusting mechanism; 21. a backrest; 22. an adjusting plate; 23. a sliding cylinder; 24. a slide hole; 25. a limiting column; 26. a spring; 27. a limiting groove; 3. a front adjustment mechanism; 31. a first motor; 32. a rocker; 33. a connecting member; 34. a sleeve; 35. a power rod; 36. a stopper; 37. a front leg frame; 38. a front wheel guard plate; 39. a front wheel; 310. a chute; 311. a winch; 312. an arc-shaped groove; 313. a movable gear; 314. rotating the strip; 315. adjusting the wrench; 316. blocking strips; 4. a rear adjustment mechanism; 41. a second motor; 42. a driving gear; 43. a rear wheel power lever; 44. a distance piece; 45. twisting and supporting a rear wheel; 46. a driven gear; 47. a rear wheel support bar; 48. a rear wheel; 5. a first card slot; 6. a storage box; 7. a second card slot; 8. a cover plate; 9. a storage battery; 10. an anti-collision member; 11. a first stopper; 12. a second stop; 13. a control panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 6 and fig. 7, the present invention provides a technical solution: the utility model provides a multi-functional wheelchair of all topography, includes saddle 1, the one end of saddle 1 is fixed with the angle adjustment mechanism 2 that is convenient for adjust to lie and leans on the angle, the one end symmetry that angle adjustment mechanism 2 was kept away from to the both sides of saddle 1 rotates and is connected with anterior adjustment mechanism 3, the one end symmetry that the bottom of saddle 1 is close to angle adjustment mechanism 2 is fixed with rear portion adjustment mechanism 4, angle adjustment mechanism 2 includes back 21, regulating plate 22, a sliding cylinder 23 and sliding hole 24, the bottom of saddle 1 one end is rotated through the pivot and is connected with back 21, the bilateral symmetry of back 21 is fixed with regulating plate 22, the one end of regulating plate 22 is fixed with a sliding cylinder 23, sliding hole 24 has been seted up to regulating plate 22 is located the inboard of a sliding cylinder 23.

Referring to fig. 1, 2, 6 and 9, the angle adjusting mechanism 2 further includes a limiting post 25, a spring 26 and a limiting groove 27, the inner wall of the sliding hole 24 is slidably connected with the limiting post 25, one end of the limiting post 25 close to the adjusting plate 22 is fixed with the spring 26, one end of the spring 26 far away from the adjusting plate 22 is fixed with the inner wall of the sliding tube 23, the limiting grooves 27 are symmetrically and equidistantly formed on two sides of the saddle 1, the limiting post 25 is clamped with one limiting groove 27 on the saddle 1, so that the lying angle of a user can be effectively adjusted, and the use experience of the user is improved.

Referring to fig. 1, 2, 3 and 4, the front adjusting mechanism 3 includes a first motor 31, a rocker 32, a connecting member 33, a sleeve 34, a power rod 35, a stopper 36, a front leg 37, a front wheel guard 38, a front wheel 39, a sliding chute 310, a winch 311, an arc groove 312, a movable tooth 313, a rotating bar 314, an adjusting wrench 315 and a stopper bar 316, the first motor 31 is symmetrically fixed at one end of the bottom of the seat 1 near the backrest 21, the rocker 32 is fixed at the output end of the first motor 31, the connecting member 33 is rotatably connected at one end of the rocker 32 far from the first motor 31 through a shaft pin, the sleeves 34 are symmetrically rotatably connected at the bottoms of both sides of the seat 1 through shaft pins, the power rod 35 is slidably connected to the inner wall of the sleeve 34, one end of the connecting member 33 far from the rocker 32 is rotatably connected with the power rod 35 through a shaft pin, the stopper 36 is fixed at one end of the power rod 35 near the sleeve 34, the two sides of the saddle 1 are symmetrically and rotatably connected with front leg frames 37 through shaft pins, one end of each front leg frame 37 is rotatably connected with the power rod 35 through the shaft pins, the outer side of one end, far away from the power rod 35, of each front leg frame 37 is fixedly provided with a front wheel guard plate 38, the outer side of one end, close to the front wheel guard plate 38, of each front leg frame 37 is rotatably connected with a front wheel 39 through a bearing, the periphery of the inner ring of each front wheel 39 is equidistantly provided with sliding grooves 310, the inside of each front wheel 39 is rotatably connected with a winch 311 through a bearing, one side, far away from the front leg frame 37, of each winch 311 is equidistantly provided with arc-shaped grooves 312, the inner wall of each sliding groove 310 is slidably connected with a movable tooth 313, one end, near to the winch 311, of each movable tooth 313 is slidably connected with the inner wall of the arc-shaped grooves 312, one side, far away from the front leg frames 37, of the, the front wheel 39 is symmetrically fixed with a barrier strip 316 at one side far away from the front leg 37, which can effectively adjust the front wheel 39.

Referring to fig. 1 and 2, the rear adjusting mechanism 4 includes a second motor 41, a driving gear 42, a rear wheel power rod 43, a distance member 44, a rear wheel hinge support 45, a driven gear 46, a rear wheel support rod 47 and a rear wheel 48, wherein the second motor 41 is symmetrically fixed at one end of the bottom of the seat 1 close to the first motor 31, the driving gear 42 is fixed at an output end of the second motor 41, the rear wheel power rod 43 is fixed at an output end of the second motor 41 through the driving gear 42, the distance member 44 is rotatably connected at an output end of the second motor 41 through a bearing by passing through the rear wheel power rod 43, the rear wheel hinge support 45 is rotatably connected at an inner side of one end of the distance member 44 far from the second motor 41 through a shaft pin, the driven gear 46 is fixed at an inner side of one end of the rear wheel hinge support 45 close to the distance member 44, the driven gear 46 is engaged with the driving gear 42, and one ends of the rear wheel power rod 43 and the rear wheel hinge support 45 far from the driving gear 42 are rotatably The rear wheel support rod 47, the one end that rear wheel support rod 47 kept away from rear wheel power pole 43 is connected with rear wheel 48 through the pivot rotation, can effectually adjust rear wheel 48.

Referring to fig. 7 and 8, first slots 5 are symmetrically formed in the lower portion of the middle portion of the seat 1, the inner walls of the two first slots 5 are slidably connected with storage boxes 6, second slots 7 are symmetrically formed in the middle portion of the seat 1, which is located right above the first slots 5, and cover plates 8 are slidably connected to the inner walls of the two second slots 7, so that a user can store things conveniently.

Referring to fig. 1 and 2, the storage batteries 9 are symmetrically fixed at one end of the bottom of the seat 1 far from the first motor 31, the anti-collision piece 10 is fixed at the bottom of the storage battery 9 near one end of the second motor 41, and the anti-collision piece 10 is matched with the rear wheel power rod 43, so that the power storage capacity can be greatly improved.

Referring to fig. 1, first stops 11 are symmetrically fixed at two sides of the seat 1 near one end of the front wheel 39, a second stop 12 is fixed at the middle of the front leg 37, and the first stops 11 and the second stops 12 are matched with each other, so that damage caused by collision of parts can be avoided, and safety of the wheelchair itself can be improved.

Referring to fig. 3, a control panel 13 is fixed at one end of the top of the seat 1 near the front wheel 39, and the control panel 13 is electrically connected to the first motor 31 and the second motor 41, so as to facilitate the operation of the user.

The working principle is as follows:

when the wheelchair is used, when the wheelchair runs on a flat road, the first motor 31 is driven to drive the rocker 32 to rotate, so that the connecting piece 33 is driven to rotate, at the moment, the angle between the rocker 32 and the connecting piece 33 is reduced, the power rod 35 is indirectly driven to move forwards, under the action of the sleeve 34, the power rod 35 pushes the front leg bracket 37 to turn the front wheel 39 downwards to the wheelchair, when the stop block 36 on the power rod 35 is contacted with the sleeve 34, the vertical height of the front wheel 39 and the saddle 1 is maximized, the second motor 41 is driven to drive the rear wheel power rod 43 to rotate anticlockwise, the rear wheel support rod 47 is driven by the rear wheel power rod 43 to generate a downward movement trend, because the driving gear 42 is fixed, the angle between the rear wheel hinge 45 and the distance piece 44 is changed in the upward movement process due to the meshing between the gears, because the rear wheel power rod 43 and the rear wheel support rod 47, the rear wheel power rod 43, the rear wheel support rod 47 and the rear wheel support 45 are contracted towards the lower part of the seat 1 when the angle between the rear wheel power rod 43 and the distance piece 44 is reduced along with the rotation of the second motor 41, the vertical distance between the rear wheel 48 and the seat 1 is reduced, when the rear wheel power rod 43 contacts the anti-collision piece 10, the vertical distance between the rear wheel 48 and the seat 1 is reduced to the minimum, at the moment, the wheelchair is in a flat ground running mode, when a wheelchair user goes out outdoors, the wheelchair user can hardly meet steps, stones and road conditions which are dozens of centimeters higher than the ground, at the moment, the wheelchair hardly crosses obstacles by the driving force of a common tire, at the moment, the first motor 31 drives the rocker 32 to rotate anticlockwise, the connecting piece 33 moves backwards of the wheelchair under the driving of the rocker 32, the power rod 35 moves backwards through the sleeve 34 under the traction of the connecting piece 33, thereby rotating the front leg 37 clockwise, and at this time, the front wheel 39 moves forward of the wheelchair with the front leg 37, and the vertical distance between the front wheel 39 and the seat 1 is reduced. Meanwhile, the second motor 41 drives the rear wheel power rod 43 to rotate anticlockwise, the angle between the rear wheel hinge support 45 and the distance-fixing piece 44 is increased, the angle between the rear wheel support rod 47 and the rear wheel power rod 43 is increased, the vertical distance between the intersection point of the rear wheel support rod 47 and the rear wheel hinge support 45 and the axis of the second motor 41 is gradually increased, under the action, the vertical distance between the rear wheel 48 and the seat 1 is increased, at the moment, the vertical distance between the two front wheels 39 of the wheelchair and the seat 1 is smaller, the vertical distance between the two rear wheels 48 and the seat 1 is larger, a height difference is formed between the two rear wheels 48 and the two front wheels 39, in the state, the plane formed by the tangent lines of the front and rear wheels is almost the same as the gradient of a step, so that the comfort of a wheelchair rider can be ensured during ascending stairs, the stability of the wheelchair is ensured, when the power of the front two front wheels 39 of the wheelchair is insufficient, the adjusting wrench 315 is pulled out from the back of a barrier strip 316 along, at this time, the adjusting wrench 315 is rotated, because the adjusting wrench 315 is connected to the winch 311 inside the front wheel 39, the adjusting wrench 315 is rotated to rotate the winch 311 inside the wheel counterclockwise, because the movable gear 313 can only move in the corresponding sliding slot 310 in the front wheel 39, and the circular protrusion on one end of the movable gear 313 close to the wheel center is connected with the circular arc-shaped slot 312 of the winch 311 in a sliding manner, during the counterclockwise rotation of the winch 311, 12 movable gears 313 on the front wheel 39 gradually contract toward the wheel center, and at this time, the front wheel 39 not only advances by the friction force between the tire and the ground, but also can generate a force to the obstacle by both sides of the vacant position generated by tire contraction, thereby more easily passing over the obstacle. The wheelchair user often meets the problem that the height is not high enough outdoors or the visual field is too small when people around the wheelchair are more, at the moment, the first motor 31 is driven to drive the rocker 32 to rotate anticlockwise, the connecting piece 33 is driven by the rocker 32 to move towards the rear of the wheelchair, the power rod 35 is driven by the connecting piece 33 to move backwards through the sleeve 34, so that the front leg frame 37 is driven to rotate clockwise, at the moment, the front wheel 39 moves towards the front of the wheelchair along with the front leg frame 37, and the vertical distance between the front wheel 39 and the seat 1 is reduced. Meanwhile, the second motor 41 drives the rear wheel power rod 43 to rotate anticlockwise, the angle between the rear wheel hinge support 45 and the distance-fixing piece 44 is increased, the angle between the rear wheel support rod 47 and the rear wheel power rod 43 is increased, the vertical distance between the intersection point of the rear wheel support rod 47 and the rear wheel hinge support 45 and the axis of the second motor 41 is gradually increased, the vertical distance between the rear wheel 48 and the seat 1 is increased under the action, at the moment, the vertical distance between the two front wheels 39 and the seat 1 of the wheelchair is smaller, the vertical distance between the two rear wheels 48 and the seat 1 is larger, and the four wheels are in contact with the ground, so that a user is in a semi-upright state under the action of the wheelchair, and the visual field height is increased.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An all-terrain multifunctional wheelchair, comprising a vehicle seat (1), characterized in that: the one end of saddle (1) is fixed with angle adjustment mechanism (2) that is convenient for adjust to lie and leans on the angle, the one end symmetry that angle adjustment mechanism (2) were kept away from to the both sides of saddle (1) is rotated and is connected with anterior adjustment mechanism (3), the one end symmetry that the bottom of saddle (1) is close to angle adjustment mechanism (2) is fixed with rear portion adjustment mechanism (4), angle adjustment mechanism (2) are including back (21), regulating plate (22), sliding tube (23) and slip hole (24), the bottom of saddle (1) one end is rotated through the pivot and is connected with back (21), the bilateral symmetry of back (21) is fixed with regulating plate (22), the one end of regulating plate (22) is fixed with sliding tube (23), sliding hole (24) have been seted up to regulating plate (22) the inboard that is located sliding tube (23).

2. The all-terrain multi-functional wheelchair of claim 1, wherein: angle adjustment mechanism (2) still include spacing post (25), spring (26) and spacing groove (27), the inner wall sliding connection of sliding hole (24) has spacing post (25), the one end that spacing post (25) are close to regulating plate (22) is fixed with spring (26), the one end that regulating plate (22) were kept away from in spring (26) is fixed with the inner wall of a sliding tube (23), spacing groove (27) have been seted up to the bilateral symmetry equidistance of saddle (1), spacing post (25) and spacing groove (27) joint on saddle (1).

3. An all-terrain multi-function wheelchair as claimed in claim 2, wherein: the front adjusting mechanism (3) comprises a first motor (31), a rocker (32), a connecting piece (33), a sleeve (34), a power rod (35), a stop block (36), a front leg frame (37), a front wheel guard plate (38), a front wheel (39), a sliding chute (310), a winch (311), an arc-shaped groove (312), movable teeth (313), a rotating strip (314), an adjusting wrench (315) and a blocking strip (316), wherein the first motor (31) is symmetrically fixed at one end of the bottom of the seat (1) close to the backrest (21), the rocker (32) is fixed at the output end of the first motor (31), the connecting piece (33) is rotatably connected at one end of the rocker (32) far away from the first motor (31) through a shaft pin, the sleeves (34) are rotatably connected at the bottoms of two sides of the seat (1) through shaft pins, and the power rod (35) is slidably connected to the inner wall of the sleeves (34, one end, far away from a rocker (32), of the connecting piece (33) is rotatably connected with the power rod (35) through a shaft pin, one end, close to the sleeve (34), of the power rod (35) is fixed with a stop block (36), two sides of the seat (1) are symmetrically and rotatably connected with front leg frames (37) through the shaft pin, one end of each front leg frame (37) is rotatably connected with the power rod (35) through the shaft pin, a front wheel guard plate (38) is fixed on the outer side of one end, far away from the power rod (35), of each front leg frame (37), a front wheel (39) is rotatably connected with the outer side of one end, close to the front wheel guard plate (38), of each front leg frame (37) through a bearing, sliding grooves (310) are formed in the periphery of the inner ring of the front wheel (39) at equal intervals, a winch (311) is rotatably connected inside the front wheel (39) through a bearing, and an arc-shaped groove (312), the inner wall sliding connection of spout (310) has movable tooth (313), movable tooth (313) are close to the inner wall sliding connection of capstan winch (311) one end and circular arc groove (312), one side that preceding leg (37) were kept away from in capstan winch (311) is fixed with rotates strip (314), the one end that preceding leg (37) were kept away from in rotation strip (314) is passed front wheel (39) and is rotated through the pivot and be connected with regulation spanner (315), one side symmetry that preceding leg (37) were kept away from in front wheel (39) is fixed with blend stop (316).

4. An all-terrain multi-function wheelchair as claimed in claim 3, wherein: the rear adjusting mechanism (4) comprises a second motor (41), a driving gear (42), a rear wheel power rod (43), a distance piece (44), a rear wheel hinge support (45), a driven gear (46), a rear wheel support rod (47) and a rear wheel (48), wherein the second motor (41) is symmetrically fixed at one end, close to the first motor (31), of the bottom of the seat (1), the driving gear (42) is fixed at the output end of the second motor (41), the rear wheel power rod (43) is fixed at the output end of the second motor (41) after penetrating through the driving gear (42), the distance piece (44) is rotatably connected with the output end of the second motor (41) after penetrating through the rear wheel power rod (43) through a bearing, the rear wheel hinge support (45) is rotatably connected with the inner side of one end, far away from the second motor (41), of the rear wheel hinge support (45) close to one end of the distance piece (44), and the driven gear (46) is fixed at the inner side of one end, close to the distance piece, the driven gear (46) is meshed with the driving gear (42) and connected, one ends, far away from the driving gear (42), of the rear wheel power rods (43) and the rear wheel hinge support (45) are connected with rear wheel supporting rods (47) in a rotating mode through shaft pins, and one ends, far away from the rear wheel power rods (43), of the rear wheel supporting rods (47) are connected with rear wheels (48) in a rotating mode through shaft pins.

5. The all-terrain multi-functional wheelchair of claim 1, wherein: first draw-in groove (5) have been seted up to the below symmetry at saddle (1) middle part, two the inner wall sliding connection of first draw-in groove (5) has storing box (6), saddle (1) middle part is located first draw-in groove (5) and has seted up second draw-in groove (7) directly over the symmetry, two the inner wall sliding connection of second draw-in groove (7) has apron (8).

6. An all-terrain multi-function wheelchair as claimed in claim 4, wherein: the bicycle is characterized in that a storage battery (9) is symmetrically fixed at one end, far away from the first motor (31), of the bottom of the bicycle seat (1), an anti-collision piece (10) is fixed at the bottom, close to one end of the second motor (41), of the storage battery (9), and the anti-collision piece (10) is matched with the rear wheel power rod (43).

7. An all-terrain multi-function wheelchair as claimed in claim 3, wherein: the bicycle seat is characterized in that first stops (11) are symmetrically fixed at two sides of the bicycle seat (1) close to one end of a front wheel (39), a second stop (12) is fixed in the middle of a front leg frame (37), and the first stops (11) are matched with the second stop (12).

8. An all-terrain multi-function wheelchair as claimed in claim 4, wherein: one end of one side of the top of the saddle (1) close to the front wheel (39) is fixed with a control panel (13), and the control panel (13) is electrically connected with the first motor (31) and the second motor (41).