CN208541489U - A kind of deformable crawler belt wheel-chair - Google Patents

Abstract

The utility model relates to a kind of deformable crawler belt wheel-chairs, wheel-chair accelerates handle to drive driving motor to drive drive sprocket by driving power drive control device, drive sprocket is driven by drive chain by movable sprocket, walking gear wheel rotation is driven by movable sprocket, gear wheel of walking drives crawler belt operating, by forward-reverse switch control power drive controller, the forward or backward of wheel-chair is realized；Movable joint structure is formed with the pivot connection of shaft respectively by main car frame and active deformation vehicle frame, pass through the pivot connection of connecting plate and waist section vehicle frame shaft and covariant trolley shaft, it realizes that wheel-chair crawler belt shape at slope road or step road traveling changes with the gradient or step, guarantees wheel-chair in the firm of slope surface or step road traveling.The wheel-chair crawler belt guarantees center of gravity in the middle part of crawler belt during slope surface or step road traveling, and crawler belt can be deformed to adapt to slope surface or step road surface, so that wheel-chair guarantees riding people's safety in slope surface or the smooth-ride of step road surface.

Description

A kind of deformable crawler belt wheel-chair

Technical field

The utility model belongs to walking-replacing tool technical field, and in particular to a kind of deformable crawler belt wheel-chair.

Background technique

Combustion-motor-driven wheelchairs are lower limb disability person's special walk tool.Such vehicle is using gasoline as the energy, engine driving.It is all Operation is completed by upper limb.Seat has backrest, handrail and safety belt limit, to keep the body steadiness of user, and has short Apart from hand mobile device, so that safety can be moved to when failure manually or does not hinder traffic location.Speed is not more than 35km/h, has machine Dynamic the features such as property is strong, fuel supplement is convenient, easy to operate.But noise is big, institute's waste air air easy to pollute.

Combustion-motor-driven wheelchairs are suitable for medium and long distance traveling, in the preferable plains region of road conditions, as walking-replacing tool, engine row Amount should be less than 50m1；In the area that mountain area or road conditions are poor, engine displacement can meet in 70ml or so rides instead of walk It needs.

However, existing crawler wheel Wheel-chair, crawler belt can not deform, cause it in slope surface or step road traveling process In, it is easy to appear the problem of one end sinks suddenly, is easily caused danger.

For crawler wheel Wheel-chair, it is primarily present following patent document:

The Chinese patent that Authorization Notice No. is 206315205U, which discloses a kind of seat, can automatically keep horizontal crawler type Voluntarily wheeled chair is related to a kind of voluntarily wheeled chair.Traditional stair climbing wheelchair mostly uses greatly two different walking mechanisms to form Hybrid gear mechanism, structure is complicated.The utility model includes rack, the seat being set in rack, is symmetrically set to The gear mechanism of rack two sides, driving motor, the power supply being fixed in rack, gear mechanism are crawler type mechanism, each train Mechanism passes through a driving motor control driving, and driving motor, which is connected to, realizes wheelchair various motion for controlling gear mechanism Controller, movement include advance, retreat, turn left, turn right and rotate in place；Seat is rotatable by axle sleeve set below Be connected in connecting shaft set by frame top, under-seat is additionally provided with for guaranteeing that seat is automatically kept during ladder Horizontal automatic leveling device.The technical solution improves stability, safety and the comfort during stair climbing.However, Crawler self wheeled chair provided by the patent can only drive wheelchair to travel by crawler belt, and seat is only being got out of a predicament or an embarrassing situation It keeps horizontal in the process, but relative position is non-adjustable, to be difficult to adjust seat center of gravity, is easy to appear weighting phenomenon, increases and carry out Band burden.

Utility model content

The purpose of this utility model is to provide a kind of deformable crawler belt wheel-chairs, solve existing crawler wheel Wheel-chair descending Or the nonadjustable problem of seat position during getting out of a predicament or an embarrassing situation.

To achieve the above object, a kind of deformable crawler belt wheel-chair provided by the utility model, the wheel-chair crawler belt During slope surface or step road traveling, it is ensured that center of gravity in the middle part of crawler belt, and crawler belt can be deformed with adapt to slope surface or Step road surface, so that wheel-chair guarantees the safety of riding people in slope surface or the smooth-ride of step road surface.

Specifically, the technical solution adopted in the utility model is:

A kind of deformable crawler belt wheel-chair, the wheel-chair includes: chassis, is a framework, width over side sills direction two sides Both ends extend outward to form central axis in the width direction respectively, after corresponding headstock one end is preceding central axis, corresponding tailstock one end is Central axis, length over end sills direction two sides outer surface middle part are convexly equipped with two shafts, two shafts along the vertical outer surface direction respectively It is intervally arranged along length over end sills direction；Two seat rails, shape be it is rod-shaped, respectively along length over end sills orientation stand be set to the chassis Length direction two sides upper surface both ends；Two seat supports respectively include intersecting connected front-wheel strut, rear wheel fulcrum bar, setting In front-wheel strut lower end seat front walking wheel, be set to the seat rear walking wheel of rear wheel fulcrum bar lower end, two seat supports It is slideably positioned on two seat rails by seat front walking wheel and seat rear walking wheel respectively；One seat, including seat cushion, setting In backrest and handrail on seat cushion, the seat is set on two seat supports by seat frame, and regulation is provided on armrest Switch assembly, accelerates handle, brake lever at forward-reverse switch, is provided with running wheel position on the regulating switch assembly Switch；Rocker after one is a framework, and rear rocker length direction two sides lower end is sheathed on respectively on rear center's axis, and rear rocker is long It spends in the middle part of the two sides of direction and is drivingly connected respectively by seat push-and-pull connecting rod and two rear wheel fulcrum bar, length direction two sides Rocker width direction is equipped with a rotation axis after upper end edge, is provided with a driving motor in the middle part of rotation axis, both ends are arranged with one respectively With the drive sprocket of driving motor output end transmission connection, accordingly, rear center's axis both ends are arranged with a quilt respectively Movable sprocket, drive sprocket are formed by drive chain and passive sprocket wheel and are sequentially connected, and the driving motor receiving end passes through an electricity Power drive controller and the acceleration handle communicate to connect, and the power drive controller is connect with forward-reverse Switch Communication； Two regulation motors, are set up in length over end sills direction two sides upper surface respectively, and output end is sequentially connected a worm screw, and worm screw is remote From regulation motor one end be sequentially connected a turbine, the Cover For A Turbine be set to rear center's axis on, two regulation motor receiving ends respectively with institute The communication connection of running wheel position switch is stated, the driving regulation motor rotation of running wheel position switch regulates and controls motor driven worm screw Rocker overturns around rear center's axis and is pushed and pulled by seat and connected after driving the rotation of worm gear drive rear center axis, the rotation of rear center's axis to drive Bar linkage rear wheel fulcrum bar drives seat support and seat to move by seat rear walking wheel, seat front walking wheel along seat rail； Two walking gear wheels, are sheathed on rear center's axis both ends, and be sequentially connected respectively with by movable sprocket respectively；Two support wheels, are arranged respectively In the preceding central axis both ends；Two crawler belts, shape are annular, are located on the outside of the two sides of length over end sills direction, one end is arranged respectively In on walking gear wheel, other end lower inside is sheathed on respectively on the support wheel；Two main car frames, shape are rod-shaped, edge respectively Horizontal direction is set up in two crawler belts, and one end is connect with rear center's axis both ends respectively, and other end end offers one respectively Main car frame hole is simultaneously sheathed on the shaft outboard end close to rear center's axis side by the main car frame hole, is formed and is pivotally connected；Two waists Save vehicle frame, shape be it is rod-shaped, be set up in two crawler belts in the horizontal direction respectively, both ends are connected in the middle part of two shaft, A waist section vehicle frame shaft is vertically convexly equipped in the middle part of waist section vehicle frame outer surface；Two active deformation vehicle frames, shape be it is rod-shaped, respectively along water Square to being set up in two crawler belts, both ends open up shape-changeable vehicle frame aperture respectively, and one end is sheathed on the shaft by nearby central axis side Outboard end, forms and is pivotally connected, and the other end is connected to the preceding central axis outboard end, active deformation vehicle by a support wheel connecting rod Frame opened a tensioning wheel connecting rod by nearby central axis one end and is connected with a support tensioning wheels, and support wheel is matched with support tensioning wheels It closes, is formed and crawler belt is shored by nearby central axis one end；Four inertia trolley units, respectively include horizontally spaced set It is placed in two idle wheels of crawler belt inner wall and connects the inertia connecting rod of two idle wheels, two inertia trolley units pass through inertia connecting rod respectively It is connect with main car frame, another two inertia trolley unit passes through inertia connecting rod respectively and connect with active deformation vehicle frame；Two covariant trolley lists Member, respectively includes two groups of covariant trolley wheel groups corresponding with two shafts, and every group of covariant trolley wheel group includes two covariant trolleys The two covariant trolley connecting rods in two covariant trolley wheel axial ends faces are taken turns and be connected to, are inserted in the middle part of two covariant trolley connecting rods One covariant trolley shaft；Two connecting plates respectively correspond a covariant trolley unit, and shape is inverted " V " font, and middle part is sheathed on described It is formed and is pivotally connected on waist section vehicle frame shaft, both ends are sheathed on to be formed on the covariant trolley shaft respectively and be pivotally connected；One electricity Bottle, is set on rear wheel fulcrum bar, and receiving end is communicated to connect with the power switch being set on seat, and output end is by accelerating handle It is electrically connected with power drive controller, output end is also electrically connected with the regulating switch assembly；The running wheel position switch Driving regulation motor rotates forward, after regulation motor driven worm screw drives the rotation of worm gear drive rear center axis, the rotation of rear center's axis to drive Rocker is overturn to headstock direction, and rear rocker pushes and pulls connecting rod by seat and pushes rear wheel fulcrum bar that seat support and seat is driven to pass through seat Chair rear walking wheel, seat front walking wheel are moved along seat rail to headstock direction；The running wheel position switch driving regulation Motor reversal, rocker is to vehicle after regulation motor driven worm screw drives the rotation of worm gear drive rear center axis, the rotation of rear center's axis to drive The overturning of tail direction, rear rocker push and pull connecting rod by seat and pull rear wheel fulcrum bar drive seat support and seat by walking after seat Wheel, seat front walking wheel are moved along seat rail to tailstock direction；The acceleration handle passes through driving power drive control device band Dynamic driving motor drives drive sprocket, and drive sprocket is driven by drive chain by movable sprocket, is driven walking gear wheel by movable sprocket Rotation, walking gear wheel drive crawler belt operating, by forward-reverse switch control power drive controller, realize the wheel-chair It moves forward or back；Movable joint structure is formed with the pivot connection of shaft respectively by main car frame and active deformation vehicle frame, is passed through The pivot connection of connecting plate and waist section vehicle frame shaft and covariant trolley shaft, realizes the wheel-chair in slope road or step road surface row Crawler belt shape changes with the gradient or step when sailing, and guarantees wheel-chair in the firm of slope surface or step road traveling.

Further, it is additionally provided with directive wheel position switch on the regulating switch assembly, is leaned on inside the chassis in nearby The width direction both ends of mandrel side are connected separately with an electric telescopic rod, and two electric telescopic rod output ends are separately connected a guiding Wheel, two electric telescopic rod input terminals are communicated to connect with the directive wheel position switch respectively；Rocker rotation axis both ends point after described It is not connected with a running wheel, two running wheels are located on the outside of two drive sprockets；The directive wheel position switch driving electricity Dynamic telescopic rod shrinkage band action-oriented wheel is promoted and is taken on the inside of chassis, realizes that wheel-chair is travelled by crawler belt；The directive wheel position Set switch driving electric telescopic rod elongated action-oriented wheel extend and with ground face contact, meanwhile, running wheel position switch driving Regulate and control motor reversal, rocker after regulation motor driven worm screw drives the rotation of worm gear drive rear center axis, the rotation of rear center's axis to drive It overturns to tailstock direction to two running wheels and ground face contact, two running wheels cooperate with two directive wheels lifts off two crawler belts Ground, two running wheels and two directive wheels cooperatively form the support to wheelchair body frame, and driving motor drives running wheel to carry out Rear wheel drive realizes that wheel-chair passes through the traveling of running wheel and directive wheel.

Further, seat leveling switch, the seat cushion bottom surface connection are additionally provided on the regulating switch assembly There is an electric telescopic rod connecting with seat leveling Switch Communication, the electric telescopic rod other end is connect with rear wheel fulcrum bar, seat Chair leveling switch elongating or shortening by control electric telescopic rod, realizes seat cushion leveling；Before the seat support passes through Wheel strut is connect with seat cushion；The power drive controller is set on seat push-and-pull connecting rod.

Further, the rotation axis both ends on the inside of two running wheel are arranged with a brake disc, brake disc respectively On be respectively arranged with a brake block, brake block and brake lever communicate to connect.

Further, upward formation inverted " V " font structure in the middle part of the seat rail, seat rail is by nearby center Axis one end end is convexly equipped with one for limiting the front limit portion of seat front walking wheel, and seat rail is close to one end projection of rear center's axis There is a rear limiting section for being used to limit seat rear walking wheel；The position sliding sleeve that the seat rail is located above main car frame is equipped with Sleeve, the main car frame upper surface are connected to casing by a main car frame connecting rod, realize between main car frame and seat rail It is slidably connected；Crawler belt drives wheel-chair in slope surface or step road traveling, the running wheel position switch driving regulation motor Reversion, rocker is to tailstock side after regulation motor driven worm screw drives the rotation of worm gear drive rear center axis, the rotation of rear center's axis to drive To overturning, rear rocker by seat push and pull connecting rod pull rear wheel fulcrum bar drive seat support and seat by seat rear walking wheel, Seat front walking wheel is moved to seat rail setting sleeve position to tailstock direction along seat rail, adjusts seat center of gravity, guarantees The steady descending of wheel-chair is got out of a predicament or an embarrassing situation；Two main car frames pass through an at least main car frame connecting rod and the length over end sills direction two respectively The connection of side outer surface；Two active deformation vehicle frames pass through at least one deformation vehicle frame connecting rod and the length over end sills direction two respectively The connection of side outer surface；The two active deformations vehicle frame upper surface is convexly equipped with a convex block respectively, and convex block upper end connects a sliding block, sliding Slide opening is opened up in the middle part of block, sliding block is sheathed on a slide bar by the slide opening, and it is corresponding actively which is set to the seat rail Vehicle frame one side lower surface is deformed, realizes being slidably connected between active deformation vehicle frame and seat rail.

Further, the waist section vehicle frame upper surface middle part is convexly equipped with a support rod vertically, and post upper is connected with one Wheel is shored, wheel is shored and is abutted with crawler belt inner wall, is formed to shoring in the middle part of crawler belt；The crawler belt outer wall is provided with crawler belt blob of viscose.

Further, a gas spring is connected between active deformation vehicle frame upper surface in the middle part of the tensioning wheel connecting rod.

Further, the inertia connecting rod upper surface middle part is convexly equipped with a buffering convex block along the vertical direction respectively, buffers convex Block upper surface is convexly equipped with yielding rubber respectively, realizes the buffering between inertia trolley unit and main car frame and active deformation vehicle frame.

Further, the main car frame is convexly equipped with a lug boss close to waist section vehicle frame one end lower surface along the vertical direction, right Ying Di, the active deformation vehicle frame are convexly equipped with a protruding portion close to waist section vehicle frame one end lower surface along the vertical direction, lug boss and Gas spring damping position-controlled device is connected between protruding portion.

Further, the front-wheel strut corresponds to headstock one side lower part and is convexly equipped with a foot pedal, foot pedal in the horizontal direction It rotates and connects with front-wheel strut, foot pedal upper surface is connected close to front-wheel strut one end by a gas spring and the seat cushion lower surface It connects.

The utility model has the advantages that

Movable joint structure is formed with the pivot connection of shaft respectively by main car frame and active deformation vehicle frame, passes through connection The pivot connection of plate and waist section vehicle frame shaft and covariant trolley shaft, realizes the wheel-chair at slope road or step road traveling Crawler belt shape changes with the gradient or step, guarantees wheel-chair in the firm of slope surface or step road traveling；

Running wheel position switch driving regulation motor reversal, regulation motor driven worm screw drive worm gear drive rear center axis Rotation, rear center's axis rotation drive after rocker to tailstock direction overturn to two running wheels and ground face contact, two running wheels with Two crawler belts are lifted off ground by the cooperation of two directive wheels, and two running wheels and two directive wheels cooperatively form the branch to wheelchair body frame Support, driving motor drive running wheel to carry out rear wheel drive, realize that wheel-chair passes through the traveling of running wheel and directive wheel；

Crawler belt drives wheel-chair in slope surface or step road traveling, and the running wheel position switch driving regulation motor is anti- Turn, rocker is to tailstock direction after regulation motor driven worm screw drives the rotation of worm gear drive rear center axis, the rotation of rear center's axis to drive Overturning, rear rocker pull rear wheel fulcrum bar by seat push-and-pull connecting rod and seat support and seat are driven to pass through seat rear walking wheel, seat Chair front walking wheel is moved to seat rail setting sleeve position to tailstock direction along seat rail, adjusts seat center of gravity, guarantees wheel The steady descending of Wheel-chair is got out of a predicament or an embarrassing situation.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of deformable crawler belt wheel-chair provided by the utility model；

Fig. 2 be in a kind of deformable crawler belt wheel-chair provided by the utility model filter bag in the principle of step road traveling Schematic diagram.

Specific embodiment

The utility model is described further below by specific embodiment, but to be not intended to limit this practical new for embodiment The protection scope of type.

Embodiment 1

Referring to FIG. 1 to FIG. 2, a kind of deformable crawler belt wheel-chair provided by the utility model, the wheel-chair includes: bottom Frame (not shown) is a framework, and width over side sills direction two sides both ends extend outward to form central axis in the width direction respectively, right Answer headstock one end be before central axis 100, corresponding tailstock one end be rear center's axis 101, in the two sides outer surface of length over end sills direction Portion is convexly equipped with two shafts 102 along the vertical outer surface direction respectively, and two shafts 102 are intervally arranged along length over end sills direction；Two Chair track 1, shape be it is rod-shaped, respectively along length over end sills orientation stand be set to length over end sills direction two sides upper surface both ends； Two seat supports 2 respectively include intersecting connected front-wheel strut 21, rear wheel fulcrum bar 22, are set to 21 lower end of front-wheel strut Seat front walking wheel 23, the seat rear walking wheel 24 for being set to 22 lower end of rear wheel fulcrum bar, two seat supports 2 pass through seat respectively Front walking wheel 23 and seat rear walking wheel 24 are slideably positioned on two seat rails 1；One seat 3, including seat cushion 31, it is set to seat Backrest 32 and handrail 33 on pad 31, the seat 3 are set up on two seat supports 2 by seat cushion 31, are set on 3 handrail 33 of seat It is equipped with regulating switch assembly 34, forward-reverse switch 35, accelerates handle 36, brake lever (not shown), the regulating switch is total Running wheel position switch 341 is provided on 34；Rocker 4 after one are a framework, rear 4 length direction two sides lower end of rocker It is sheathed on rear center's axis 101 respectively, connecting rod 41 and institute is pushed and pulled by a seat respectively in the middle part of rear 4 length direction two sides of rocker Two rear wheel fulcrum bars 22 drive connection is stated, 4 width direction of rocker is equipped with a rotation axis 42, rotation after the upper end edge of length direction two sides A driving motor 43 is provided in the middle part of axis 42, both ends are arranged with the master of one with 43 output end of driving motor transmission connection respectively Movable sprocket 44, accordingly, 101 both ends of rear center's axis are arranged with one by movable sprocket 45 respectively, and drive sprocket 44 passes through driving Chain 46 forms transmission connection with by movable sprocket 45, and 43 receiving end of driving motor passes through a power drive controller 47 and institute It states and handle 36 is accelerated to communicate to connect, the power drive controller 47 is communicated to connect with forward-reverse switch 35；Two regulation motors 5, it is set up in length over end sills direction two sides upper surface respectively, output end one worm screw 51 of transmission connection, worm screw 51 is far from tune 5 one end of motor transmission connection, one turbine 52 is controlled, which is sheathed on rear center's axis 101, two regulation 5 receiving ends of motor difference It is communicated to connect with the running wheel position switch 341, the driving regulation motor 5 of running wheel position switch 341 rotates, regulation electricity Machine 5 drives worm screw 51 that turbine 52 is driven to be driven the rotation of rear center's axis 101, and the rotation of rear center's axis 101 puts 4 framves around rear center after driving The overturning of axis 101 simultaneously pushes and pulls the linkage rear wheel fulcrum bar 22 drive seat support 2 of connecting rod 41 and seat 3 by walking after seat by seat Wheel 24, seat front walking wheel 23 are moved along seat rail 1；Two walking gear wheels 6, are sheathed on 101 both ends of rear center's axis, and divide respectively It is not sequentially connected with by movable sprocket 45；Two support wheels 7 are sheathed on 100 both ends of preceding central axis respectively；Two crawler belts 8, shape are Annular is located on the outside of the two sides of length over end sills direction, and one end is sheathed on respectively on walking gear wheel 6, other end lower inside difference It is sheathed on the support wheel 7；Two main car frames 91, shape be it is rod-shaped, be set up in the horizontal direction in two crawler belts 8 respectively, one end It is connect respectively with 101 both ends of rear center's axis, other end end offers a main car frame hole (not shown) and respectively by being somebody's turn to do Main car frame hole is sheathed on 102 outboard end of shaft close to 101 side of rear center's axis, is formed and is pivotally connected；Two waist section vehicle frames 92, shape Shape be it is rod-shaped, be set up in the horizontal direction in two crawler belts 8 respectively, both ends are connected to two shaft, 102 middle part, waist section vehicle A waist section vehicle frame shaft 921 is vertically convexly equipped in the middle part of 92 outer surface of frame；Two active deformation vehicle frames 93, shape are rod-shaped, edge respectively Horizontal direction is set up in two crawler belts 8, and both ends open up shape-changeable vehicle frame aperture (not shown) respectively, and one end is sheathed on by nearby central axis 102 outboard end of shaft of 100 sides is formed and is pivotally connected, and the other end is connected to the preceding center by a support wheel connecting rod 931 100 outboard end of axis, active deformation vehicle frame 93 opened a tensioning wheel connecting rod 932 by nearby 100 one end of central axis and are connected with one Bearing up pulley 933 is supported, support wheel 7 and support tensioning wheels 933 cooperate, and are formed and are shored to crawler belt 8 by nearby 100 one end of central axis； Four inertia trolley units 200 respectively include horizontally spaced two idle wheels 201 for being set to 8 inner wall of crawler belt and connection The inertia connecting rod 202 of two idle wheels 201, two inertia trolley units 200 are connect by inertia connecting rod 202 with main car frame 91 respectively, Another two inertia trolley unit 200 is connect by inertia connecting rod 202 with active deformation vehicle frame 93 respectively；Two covariant trolley units 300, Respectively include two groups of covariant trolley wheel groups 301 corresponding with two shafts 102, every group of covariant trolley wheel group 301 include two with The two covariant trolley connecting rods 303 for becoming trolley wheel 302 and being connected to two covariant trolley wheels, 302 axial ends face, two covariant platforms A covariant trolley shaft 304 is inserted in the middle part of vehicle connecting rod 303；Two connecting plates 305 respectively correspond a covariant trolley unit 300, shape Shape is inverted " V " font, and middle part is sheathed on to be formed on the waist section vehicle frame shaft 921 and be pivotally connected, and both ends are sheathed on described respectively It is formed and is pivotally connected on covariant trolley shaft 304；One storage battery 20, is set on rear wheel fulcrum bar 22, receiving end and is set to seat 3 On power switch 37 communicate to connect, output end by accelerate handle 36 be electrically connected with power drive controller 47, output end is also It is electrically connected with the regulating switch assembly 34；

The driving of the running wheel position switch 341 regulation motor 5 rotates forward, and regulation motor 5 drives worm screw 51 to drive turbine 52 transmission rear center's axis 101 rotate, and rocker 4 is overturn to headstock direction after the rotation of rear center's axis 101 drives, and rear rocker 4 passes through seat Chair pushes and pulls connecting rod 41 and pushes rear wheel fulcrum bar 22 that seat support 2 and seat 3 is driven to pass through seat rear walking wheel 24, seat front walking wheel 23 move along seat rail 1 to headstock direction；

The driving of the running wheel position switch 341 regulation motor 5 inverts, and regulation motor 5 drives worm screw 51 to drive turbine 52 transmission rear center's axis 101 rotate, and rocker 4 is overturn to tailstock direction after the rotation of rear center's axis 101 drives, and rear rocker 4 passes through seat Chair push-and-pull connecting rod 41 pulls rear wheel fulcrum bar 22 and seat support 2 and seat 3 is driven to pass through seat rear walking wheel 24, seat front walking wheel 23 move along seat rail 1 to tailstock direction；

The acceleration handle 36 drives driving motor 43 to drive drive sprocket 44 by driving power drive control device 47, main Movable sprocket 44 is driven by drive chain 46 by movable sprocket 45, is driven walking gear wheel 6 by movable sprocket 45 and is rotated, 6 band of gear wheel of walking Dynamic crawler belt 8 operates, by the control power drive controller 47 of forward-reverse switch 35, realize the wheel-chair advance or after It moves back；Pivot connection by main car frame 91 and active deformation vehicle frame 93 respectively with shaft 102 forms movable joint structure, passes through company The pivot connection of fishplate bar 305 and waist section vehicle frame shaft 921 and covariant trolley shaft 304, realizes the wheel-chair in slope road or platform Crawler belt shape changes with the gradient or step when rank road traveling, guarantees wheel-chair in the firm of slope surface or step road traveling.

The power drive controller 47 is set on seat push-and-pull connecting rod 41.

Further, the 1 upward formation inverted " V " font structure in middle part of seat rail, seat rail 1 is in nearby 100 one end end of mandrel is convexly equipped with one for limiting the front limit portion 11 of seat front walking wheel 23, and seat rail 1 is close to rear center 101 one end of axis is convexly equipped with one for limiting the rear limiting section 12 of seat rear walking wheel 24；The seat rail 1 is located at main car frame 91 The position sliding sleeve of top is equipped with sleeve 13, and 91 upper surface of main car frame is connected to casing by a main car frame connecting rod 911 13, realize being slidably connected between main car frame 91 and seat rail 1；

Crawler belt 8 drives wheel-chair in slope surface or step road traveling, the driving of the running wheel position switch 341 regulation electricity Machine 5 inverts, and regulation motor 5 drives worm screw 51 that the transmission rear center's axis 101 of turbine 52 is driven to rotate, and the rotation of rear center's axis 101 drives Afterwards rocker 4 to tailstock direction overturn, rear rocker 4 by seat push and pull connecting rod 41 pull rear wheel fulcrum bar 22 drive seat support 2 and Seat 3 is moved to seat rail 1 to tailstock direction along seat rail 1 and is set by seat rear walking wheel 24, seat front walking wheel 23 13 position of casing is set, 3 center of gravity of seat is adjusted, guarantee the steady descending of wheel-chair or is got out of a predicament or an embarrassing situation；

Two main car frames 91 pass through an at least main car frame connecting rod (not shown) and length over end sills direction two sides respectively Outer surface connection；

Two active deformation vehicle frames 93 pass through at least one deformation vehicle frame connecting rod (not shown) and the length over end sills side respectively It is connected to two sides outer surface.

Further, an air pressure is connected between 932 middle part of tensioning wheel connecting rod and 93 upper surface of active deformation vehicle frame Spring 934.

Further, 202 upper surface middle part of inertia connecting rod is convexly equipped with a buffering convex block 203 along the vertical direction respectively, Buffering 203 upper surface of convex block is convexly equipped with yielding rubber 204 respectively, realizes inertia trolley unit 200 and main car frame 91 and actively becomes Buffering between shape vehicle frame 93.

Further, the corresponding headstock one side lower part of the front-wheel strut 21 is convexly equipped with a foot pedal 25, foot in the horizontal direction Pedal 25 and the rotation of front-wheel strut 21 connect, and 25 upper surface of foot pedal passes through a gas spring 26 and institute close to 21 one end of front-wheel strut State the connection of 31 lower surface of seat cushion.

Embodiment 2

It is additionally provided with directive wheel position switch 342 on the regulating switch assembly 34, leans on nearby central axis inside the chassis The width direction both ends of 100 sides are connected separately with an electric telescopic rod 400, and two electric telescopic rods, 400 output end is separately connected One directive wheel 401, two electric telescopic rods, 400 input terminal are communicated to connect with the directive wheel position switch 342 respectively；Pendulum after described 4 rotation axis of frame, 42 both ends are connected separately with a running wheel 48, and two running wheels 48 are located at two drive sprockets, 44 outside；Institute It states directive wheel position switch 342 to drive 400 shrinkage band action-oriented wheel 401 of electric telescopic rod to be promoted and take on the inside of chassis, realize Wheel-chair is travelled by crawler belt 8；

The directive wheel position switch 342 drives 400 elongated action-oriented wheel 401 of electric telescopic rod to extend and connects with ground Touching, meanwhile, the driving regulation motor 5 of running wheel position switch 341 inverts, and regulation motor 5 drives worm screw 51 that turbine 52 is driven to pass Dynamic rear center's axis 101 rotates, and rocker 4 is overturn to tailstock direction to two running wheels 48 and ground after the rotation of rear center's axis 101 drives Two crawler belts 8 are lifted off ground by face contact, two running wheels 48 and the cooperation of two directive wheels 401, and two running wheels 48 are led with two The support to wheelchair body frame is cooperatively formed to wheel 401, driving motor 43 drives running wheel 48 to carry out rear wheel drive, realizes wheel Wheel-chair passes through the traveling of running wheel 48 and directive wheel 401.

Further, 42 both ends of rotation axis positioned at two running wheels, 48 inside are arranged with a brake disc 481 respectively, A brake block 482 is respectively arranged on brake disc 481, brake block 482 and brake lever communicate to connect.

Remaining is the same as embodiment 1.

Embodiment 3

Seat leveling switch 343 is additionally provided on the regulating switch is 34 one-tenth total, 3 seat cushion of seat, 31 bottom surface is connected with One electric telescopic rod 311 communicated to connect with seat leveling switch 343,311 other end of electric telescopic rod and rear wheel fulcrum bar 22 connections, seat leveling switch 343 elongating or shortening by control electric telescopic rod 311, realize the leveling of 3 seat cushion 31 of seat； The seat support 2 is connect by front-wheel strut 21 with seat cushion 31.

Remaining is the same as embodiment 1.

Embodiment 4

Two active deformations vehicle frame, 93 upper surface is convexly equipped with a convex block 935 respectively, and 935 upper end of convex block connects a sliding block 936, it opens up slide opening (not shown) in the middle part of sliding block 936, sliding block 936 is sheathed on a slide bar 937 by the slide opening, the slide bar 937 It is set to the corresponding 93 one side lower surface of active deformation vehicle frame of the seat rail 1, realizes active deformation vehicle frame 93 and seat rail 1 Between be slidably connected.Remaining is the same as embodiment 1.

Embodiment 5

92 upper surface middle part of waist section vehicle frame is convexly equipped with a support rod 922 vertically, and 922 upper end of support rod is connected with a top Support wheel 923 is shored wheel 923 and is abutted with 8 inner wall of crawler belt, and 8 middle part of crawler belt is shored in formation；8 outer wall of crawler belt is provided with shoe Band blob of viscose 81.Remaining is the same as embodiment 1.

Embodiment 6

The main car frame 91 is convexly equipped with a lug boss 912 close to 92 one end lower surface of waist section vehicle frame along the vertical direction, corresponding Ground, the active deformation vehicle frame 93 are convexly equipped with a protruding portion 938 close to 92 one end lower surface of waist section vehicle frame along the vertical direction, protrusion Gas spring damping position-controlled device 500 is connected between portion 912 and protruding portion 938.Remaining is the same as embodiment 1.

Although above having made detailed description to the utility model with generality explanation and specific embodiment, On the basis of the utility model, it can be made some modifications or improvements, or some functional module is deleted, this is to ability It is obvious for field technique personnel.Therefore, these modifications made on the basis of without departing from the spirit of the present invention Or improve or delete, belong to the range of the requires of the utility model protection.

Claims (10)

1. a kind of deformable crawler belt wheel-chair, which is characterized in that the wheel-chair includes:

Chassis is a framework, and width over side sills direction two sides both ends extend outward to form central axis in the width direction respectively, corresponding Headstock one end is preceding central axis, corresponding tailstock one end is rear center's axis, and in the middle part of the two sides outer surface of length over end sills direction edge respectively The vertical outer surface direction is convexly equipped with two shafts, and two shafts are intervally arranged along length over end sills direction；

Two seat rails, shape be it is rod-shaped, respectively along length over end sills orientation stand be set to length over end sills direction two sides on table Face both ends；

Two seat supports respectively include intersecting connected front-wheel strut, rear wheel fulcrum bar, the seat for being set to front-wheel strut lower end Front walking wheel, the seat rear walking wheel for being set to rear wheel fulcrum bar lower end, two seat supports pass through respectively seat front walking wheel and Seat rear walking wheel is slideably positioned on two seat rails；

One seat, including seat cushion, the backrest and handrail that are set on seat cushion, the seat is set to two seat supports by seat frame On, it is provided with regulating switch assembly on armrest, forward-reverse switch, accelerates handle, brake lever, the regulating switch is total At being above provided with running wheel position switch；

Rocker after one is a framework, and rear rocker length direction two sides lower end is sheathed on respectively on rear center's axis, rear rocker length Connecting rod is pushed and pulled by a seat respectively in the middle part of the two sides of direction and two rear wheel fulcrum bar is drivingly connected, on length direction two sides End is equipped with a rotation axis along rear rocker width direction, is provided with a driving motor in the middle part of rotation axis, both ends be arranged with respectively one with The drive sprocket of the driving motor output end transmission connection, accordingly, it is passive that rear center's axis both ends are arranged with one respectively Sprocket wheel, drive sprocket are formed by drive chain and passive sprocket wheel and are sequentially connected, and the driving motor receiving end passes through an electric power Drive control device and the acceleration handle communicate to connect, and the power drive controller is connect with forward-reverse Switch Communication；

Two regulation motors are set up in length over end sills direction two sides upper surface, output end one worm screw of transmission connection, snail respectively Bar is set on rear center's axis far from one turbine of regulation motor one end transmission connection, the Cover For A Turbine, two regulation motor receiving end difference It is communicated to connect with the running wheel position switch, the driving regulation motor rotation of running wheel position switch regulates and controls motor driven Rocker overturns around rear center's axis and is pushed away by seat after worm screw drives the rotation of worm gear drive rear center axis, the rotation of rear center's axis to drive Draw connection-rod linkage rear wheel fulcrum bar that seat support and seat is driven to move by seat rear walking wheel, seat front walking wheel along seat rail It is dynamic；

Two walking gear wheels, are sheathed on rear center's axis both ends, and be sequentially connected respectively with by movable sprocket respectively；

Two support wheels are sheathed on the preceding central axis both ends respectively；

Two crawler belts, shape are annular, are located on the outside of the two sides of length over end sills direction, and one end is sheathed on respectively on walking gear wheel, separately One end lower inside is sheathed on respectively on the support wheel；

Two main car frames, shape be it is rod-shaped, be set up in two crawler belts in the horizontal direction respectively, one end respectively with rear center's axis two End connection, other end end offer a main car frame hole respectively and are sheathed on by the main car frame hole close to rear center's axis side Shaft outboard end is formed and is pivotally connected；

Two waist section vehicle frames, shape be it is rod-shaped, be set up in two crawler belts in the horizontal direction respectively, both ends are connected to two axis In the middle part of bar, a waist section vehicle frame shaft is vertically convexly equipped in the middle part of waist section vehicle frame outer surface；

Two active deformation vehicle frames, shape be it is rod-shaped, be set up in two crawler belts in the horizontal direction respectively, both ends open up shape-changeable vehicle respectively Frame aperture, one end are sheathed on the shaft outboard end by nearby central axis side, are formed and are pivotally connected, the other end is connected by a support wheel Bar is connected to the preceding central axis outboard end, and active deformation vehicle frame opened tensioning wheel connecting rod connection by nearby central axis one end There are a support tensioning wheels, support wheel and support tensioning wheels cooperate, and are formed and are shored to crawler belt by nearby central axis one end；

Four inertia trolley units, respectively include horizontally spaced two idle wheels for being set to crawler belt inner wall and connection two is lazy Property wheel inertia connecting rod, two inertia trolley units pass through inertia connecting rod respectively and connect with main car frame, another two inertia trolley unit point Not Tong Guo inertia connecting rod connect with active deformation vehicle frame；

Two covariant trolley units respectively include two groups of covariant trolley wheel groups corresponding with two shafts, every group of covariant trolley wheel group Including two covariant trolley wheels and it is connected to the two covariant trolley connecting rods in two covariant trolley wheel axial ends faces, two covariant platforms A covariant trolley shaft is inserted in the middle part of vehicle connecting rod；

Two connecting plates respectively correspond a covariant trolley unit, and shape is inverted " V " font, and middle part is sheathed on the waist section vehicle frame axis It is formed and is pivotally connected on bar, both ends are sheathed on to be formed on the covariant trolley shaft respectively and be pivotally connected；

One storage battery, is set on rear wheel fulcrum bar, and receiving end is communicated to connect with the power switch being set on seat, and output end passes through Handle is accelerated to be electrically connected with power drive controller, output end is also electrically connected with the regulating switch assembly；

The running wheel position switch driving regulation motor rotates forward, and regulation motor driven worm screw drives worm gear drive rear center axis Rotation, rocker is overturn to headstock direction after the rotation of rear center's axis drives, and rear rocker pushes and pulls connecting rod by seat and pushes rear wheel fulcrum bar Seat support and seat is driven to move along seat rail to headstock direction by seat rear walking wheel, seat front walking wheel；

The running wheel position switch driving regulation motor reversal, regulation motor driven worm screw drive worm gear drive rear center axis Rotation, rocker is overturn to tailstock direction after the rotation of rear center's axis drives, and rear rocker pushes and pulls connecting rod by seat and pulls rear wheel fulcrum bar Seat support and seat is driven to move along seat rail to tailstock direction by seat rear walking wheel, seat front walking wheel；

The acceleration handle drives driving motor to drive drive sprocket by driving power drive control device, and drive sprocket passes through drive Dynamic chain drive is driven walking gear wheel rotation by movable sprocket, by movable sprocket, and walking gear wheel drives crawler belt operating, passes through forward-reverse Switch control power drive controller realizes the forward or backward of the wheel-chair；

Form movable joint structure with the pivot connection of shaft respectively by main car frame and active deformation vehicle frame, by connecting plate with Wheel-chair crawler belt at slope road or step road traveling is realized in the pivot connection of waist section vehicle frame shaft and covariant trolley shaft Shape changes with the gradient or step, guarantees wheel-chair in the firm of slope surface or step road traveling.

2. deformable crawler belt wheel-chair according to claim 1, which is characterized in that be additionally provided on the regulating switch assembly Directive wheel position switch, the chassis inside are connected separately with an electric expansion by the width direction both ends of nearby central axis side Bar, two electric telescopic rod output ends are separately connected a directive wheel, two electric telescopic rod input terminals respectively with the directive wheel position Switch Communication connection；

Rocker rotation axis both ends are connected separately with a running wheel after described, and two running wheels are located at outside two drive sprockets Side；

The directive wheel position switch driving electric telescopic rod shrinkage band action-oriented wheel is promoted and is taken on the inside of chassis, realizes wheelchair Vehicle is travelled by crawler belt；

Directive wheel position switch driving electric telescopic rod elongated action-oriented wheel extend and with ground face contact, meanwhile, walking Wheel position switch driving regulation motor reversal, regulation motor driven worm screw drive the rotation of worm gear drive rear center axis, rear center Rocker is overturn to tailstock direction to two running wheels and ground face contact after axis rotation drives, and two running wheels and two directive wheels cooperate Two crawler belts are lifted off into ground, two running wheels and two directive wheels cooperatively form the support to wheelchair body frame, driving motor It drives running wheel to carry out rear wheel drive, realizes that wheel-chair passes through the traveling of running wheel and directive wheel.

3. deformable crawler belt wheel-chair according to claim 1, which is characterized in that also set up on the regulating switch assembly There is seat leveling switch, the seat cushion bottom surface is connected with an electric expansion connecting with seat leveling Switch Communication Bar, the electric telescopic rod other end are connect with rear wheel fulcrum bar, seat leveling switch elongating or shortening by control electric telescopic rod, Realize seat cushion leveling；The seat support is connect by front-wheel strut with seat cushion；The power drive controller is set to Seat pushes and pulls on connecting rod.

4. deformable crawler belt wheel-chair according to claim 2, which is characterized in that on the inside of two running wheel Rotation axis both ends are arranged with a brake disc respectively, and a brake block is respectively arranged on brake disc, and brake block is communicated with brake lever Connection.

5. deformable crawler belt wheel-chair according to claim 1, which is characterized in that upward in the middle part of the seat rail Inverted " V " font structure is formed, seat rail is convexly equipped with one for limiting seat front walking wheel by nearby central axis one end end Front limit portion, seat rail are convexly equipped with one for limiting the rear limiting section of seat rear walking wheel close to rear center's axis one end；

The seat rail is located at the position sliding sleeve above main car frame equipped with sleeve, and the main car frame upper surface is main by one Vehicle frame connecting rod is connected to casing, realizes being slidably connected between main car frame and seat rail；

Crawler belt drives wheel-chair in slope surface or step road traveling, and the running wheel position switch driving regulates and controls motor reversal, Regulate and control rocker after motor driven worm screw drives the rotation of worm gear drive rear center axis, the rotation of rear center's axis to drive to turn over to tailstock direction Turn, rear rocker pulls rear wheel fulcrum bar by seat push-and-pull connecting rod and seat support and seat is driven to pass through seat rear walking wheel, seat Front walking wheel is moved to seat rail setting sleeve position to tailstock direction along seat rail, adjusts seat center of gravity, guarantees wheelchair The steady descending of vehicle is got out of a predicament or an embarrassing situation；

Two main car frames pass through an at least main car frame connecting rod respectively and connect with length over end sills direction two sides outer surface；

Two active deformation vehicle frames pass through at least one deformation vehicle frame connecting rod and length over end sills direction two sides outer surface respectively Connection；

The two active deformations vehicle frame upper surface is convexly equipped with a convex block respectively, and convex block upper end connects a sliding block, opens up in the middle part of sliding block Slide opening, sliding block are sheathed on a slide bar by the slide opening, which is set to the seat rail and corresponds to active deformation vehicle frame one Being slidably connected between active deformation vehicle frame and seat rail is realized in side lower surface.

6. deformable crawler belt wheel-chair according to claim 1, which is characterized in that the waist section vehicle frame upper surface middle part is perpendicular It directly is convexly equipped with a support rod, post upper is connected with one and shores wheel, shores wheel and abut with crawler belt inner wall, is formed in the middle part of crawler belt Shore；

The crawler belt outer wall is provided with crawler belt blob of viscose.

7. deformable crawler belt wheel-chair according to claim 1, which is characterized in that in the middle part of the tensioning wheel connecting rod and actively Deformation is connected with a gas spring between vehicle frame upper surface.

8. deformable crawler belt wheel-chair according to claim 1, which is characterized in that the inertia connecting rod upper surface middle part point A buffering convex block it is not convexly equipped with along the vertical direction, buffering convex block upper surface is convexly equipped with yielding rubber respectively, realizes inertia trolley list Member and the buffering between main car frame and active deformation vehicle frame.

9. deformable crawler belt wheel-chair according to claim 1, which is characterized in that the main car frame is close to waist section vehicle frame one End lower surface is convexly equipped with a lug boss along the vertical direction, and accordingly, the active deformation vehicle frame is close to waist section vehicle frame one end following table Face is convexly equipped with a protruding portion along the vertical direction, and gas spring damping position-controlled device is connected between lug boss and protruding portion.

10. deformable crawler belt wheel-chair according to claim 1, which is characterized in that the front-wheel strut corresponds to headstock one Face lower part is convexly equipped with a foot pedal in the horizontal direction, and foot pedal and the rotation of front-wheel strut connect, and foot pedal upper surface is close to front-wheel Strut one end is connect by a gas spring with the seat cushion lower surface.