CN215131863U

CN215131863U - Folding electric wheelchair

Info

Publication number: CN215131863U
Application number: CN202121042020.7U
Authority: CN
Inventors: 李奋平; 李奋和
Original assignee: Hebei Dongtai Energy Saving Environmental Protection Technology Co ltd
Current assignee: Hebei Dongtai Energy Saving Environmental Protection Technology Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-12-14
Anticipated expiration: 2031-05-17

Abstract

The utility model provides a folding electric wheelchair, which comprises a chair frame, a driving rear wheel, a front wheel, a folding component and a controller, wherein the chair frame comprises two groups of symmetrically arranged connecting rod components consisting of four rods which are sequentially hinged end to end and a reinforcing rod connected between the two groups of connecting rod components; the folding component is arranged between the symmetrical hinged points of any pair of the two connecting rod components of the chair frame; the folding assembly comprises a pore plate, a lock pin and a pull rope, wherein the pore plate is connected to a hinge point along one rod of the connecting rod assembly, an unfolding hole and a folding hole which are positioned on the same arc line with the hinge point as the circle center are formed in the pore plate, the lock pin corresponds to the unfolding hole and the folding hole and is arranged in a preset mounting hole in a rod of an adjacent pore plate in a penetrating mode through a spring, and the pull rope is connected between two opposite lock pins. The utility model provides an electric wheelchair which has reasonable structure, light weight, small occupied volume and convenient folding.

Description

Folding electric wheelchair

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a folding electric wheelchair.

Background

The electric wheelchair is formed by superposing a high-performance energy power driving device, an intelligent operating device, a battery and the like on the basis of the traditional manual wheelchair and is formed by modification and upgrading. The electric wheelchair is provided with an intelligent controller operated manually, can complete various functions of advancing, retreating, steering, standing, lying, and the like, and becomes an indispensable tool for riding instead of walk for the old and the disabled with inconvenient actions.

In the prior art, designers of the electric wheelchair increase too many auxiliary functions in order to improve selling points, so that the structure of the electric wheelchair is more complex, the whole weight is increased, the occupied volume is also increased, the electric wheelchair cannot be folded or is not convenient to fold, the electric wheelchair cannot be folded into a smaller volume mode when the electric wheelchair is temporarily not used or is driven to travel, or the folding operation process is too tedious, and inconvenience is brought to users.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a folding electronic wheelchair, when satisfying basic function, area occupied is little, can also realize folding operation by a key formula, provides littleer volume mode.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a folding electric wheelchair comprises a chair frame, a driving rear wheel, a front wheel, a folding assembly and a controller, wherein the chair frame comprises two groups of symmetrically arranged connecting rod assemblies consisting of four rods which are sequentially hinged end to end and reinforcing rods connected between the two groups of connecting rod assemblies; driving rear wheels connected with a motor are symmetrically arranged on the two sides of the rear part of the chair frame, and front wheels are symmetrically hinged on the two sides of the front part of the chair frame; the chair frame is provided with a battery connected with the motor through the controller; the chair frame is provided with a folding assembly, and the folding assembly is operated to enable the connecting rod assembly of the chair frame to be in an unfolding state or a folding state; the folding component is arranged between the symmetrical hinged points of any pair of the two connecting rod components of the chair frame; the folding assembly comprises a pore plate, a lock pin and a pull rope, the pore plate is connected to a hinge point along one rod of the connecting rod assembly, an unfolding hole and a folding hole which are located on the same arc line with the hinge point as the circle center are formed in the pore plate, the lock pin corresponds to the unfolding hole and the folding hole and is arranged in a preset mounting hole in the rod of the adjacent pore plate in a penetrating mode through a spring, and the pull rope is connected between the two opposite lock pins.

Furthermore, the pore plate is arranged on the rod positioned on the outer side at the hinge point of the connecting rod assembly, and the lock pin is arranged on the rod positioned on the inner side at the hinge point of the connecting rod assembly; the locking pin is in clearance fit with one end of the pore plate, the hole, the folding hole and the mounting hole are unfolded, the middle of the locking pin is reduced in diameter, a spring is mounted between the locking pin and the mounting hole, and the other end of the locking pin extends out of the mounting hole and is provided with a limiting convex edge.

Furthermore, a rotatable pedal is installed in front of the bottom of the chair frame, the pedal is connected with a locking plate through a rope, and the locking plate is installed on a square column preset at the extending end of a pin shaft at the hinge joint of a connecting rod assembly of the adjacent pedal in a matched mode through a square hole.

Furthermore, the connecting rod assembly comprises a bottom rod, a front rod, a top rod and a rear rod, and all the rods are connected in a hinged mode through connecting pieces.

Furthermore, the connecting piece is the connecting piece of moulding plastics, and the connecting piece of moulding plastics is fixed riveting with one of them pole, and the connecting piece of moulding plastics is articulated through the round pin axle with another pole.

Furthermore, the reinforcing rods comprise a front reinforcing rod connected between the hinged parts of the front rod and the top rod, a rear reinforcing rod connected between the two rear rods, a bottom reinforcing rod connected to the front section between the two bottom rods and a tail reinforcing rod connected to the rear section between the two bottom rods; the folding assembly is replaced by an electric push rod connected with the battery through the controller, and the electric push rod is installed on the diagonal line of any connecting rod assembly or between two reinforcing rods positioned on the diagonal line between two groups of connecting rod assemblies.

Furthermore, a handle frame is connected above the top rod, and a backrest rod is connected above the rear rod in an extending manner; the handle frame or the backrest rod on any side is provided with a control frame with a preset through hole, the controller is arranged in the through hole of the control frame through an inserted bar which is fixedly connected with a connecting seat below and is preset, the inserted bar is provided with arc grooves arranged at intervals, and the through hole of the control frame is provided with a ball screw matched with the arc grooves.

Furthermore, a handle plate is detachably mounted on the handle frame, the ejector rod and the backrest rod are sleeved with a seat liner and a backrest liner which are connected in a split or integrated manner, a neck plate is connected between the tops of the backrest rods, and a battery is mounted between the two bottom rods.

Further, the sill bar is the slope setting of high back height before, and the anterior segment of sill bar is tubular product, and the back end of sill bar is the vertical bedplate of integrative welded with tubular product, the anterior segment of bedplate is used for the connecting piece be connected with the back bar through round pin axle hinge, and the mounting groove and the bolt fastening reduction gear are passed through in the middle section of bedplate, and the motor is connected to the inboard of reduction gear, and the drive rear wheel is connected in the outside of reduction gear, and two at least regulation holes are seted up to the back end of bedplate, and the installation in the regulation hole of truckle alternative.

Furthermore, pedal connecting pieces are connected along the front of the bottom rod, the inner sides of the pedal connecting pieces are connected with one side connecting plate through hinge pins, a pedal plate is installed between the two side connecting plates, the two side connecting plates are of an inclined plate structure with the inward interval being reduced, and the pedal plate is of a long strip plate shape with a friction strip arranged on the upper surface.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses an electric wheelchair is through setting up folding assembly, pulling stay cord unblock lockpin or realize launching and folding locking through automatically controlled electric putter, and one draws formula or a key formula operation, convenient and fast, folding back whole compactness, occupation space is little. The utility model discloses the link assembly that sets up is simple reasonable, provides motor electric power through the battery and connects the controller, satisfies the basic function requirement of electronic wheelchair, simplifies the structure as far as possible simultaneously. The utility model discloses a link assembly uses the light aluminum product, and each joint connection spare adopts the injection molding, has reduced holistic weight, portable. The utility model is provided with the trundles, the reinforcing rods, the handles and the like to ensure the safety of the electric wheelchair. To sum up, the utility model provides an electric wheelchair which has reasonable structure, light weight, small occupation volume and convenient folding.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of an expanded state according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a schematic structural diagram of a hidden part of an embodiment of the present invention in an expanded state;

FIG. 5 is a partial enlarged view of FIG. 4 at B;

fig. 6 is a front view of an embodiment of the present invention in a folded state;

FIG. 7 is a schematic view of a hidden part of a folded state according to an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at C;

fig. 9 is a schematic view of fig. 7 from another perspective.

Description of reference numerals:

1-bottom bar, 110-seat plate, 2-front bar, 3-top bar, 4-rear bar, 5-driving rear wheel, 6-motor, 7-decelerator, 8-caster, 9-front wheel, 10-front fork, 11-front wheel connector, 12-pedal connector, 13-pedal, 14-side connector, 15-pin, 17-rope, 18-locking plate, 19-tail connector, 20-front top connector, 21-back connector, 22-hole plate, 221-opening hole, 222-folding hole, 23-locking pin, 231-outer shaft, 232-middle shaft, 233-inner shaft, 234-pulling rope, 24-backrest bar, 25-handle frame, 26-handle plate, 27-controller, 271-connecting seat, 28-control frame, 29-battery, 30-bottom stiffener, 31-front stiffener, 32-rear stiffener, 33-tail stiffener, 34-hinge pin, 35-neck plate, 36-cushion pad, 37-back pad.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

The present embodiment relates to a folding electric wheelchair, which is shown in fig. 1 to 9, and includes a frame, a driving rear wheel 5, a front wheel 9, a folding assembly, and a controller 27. The chair frame comprises two groups of symmetrically arranged connecting rod assemblies consisting of four rods which are sequentially hinged end to end and a reinforcing rod connected between the two groups of connecting rod assemblies. The two sides at the back of the chair frame are symmetrically provided with driving rear wheels 5 connected with a motor 6, and the two sides at the front of the chair frame are symmetrically hinged with front wheels 9. The chair frame is provided with a battery 29, the battery 29 supplies power for the controller 27 and the motor 6, and the controller 27 is also connected with the control motor 6. The chair frame is provided with a folding component, and the connecting rod component of the chair frame is in an unfolding state or a folding state through one-pull operation of the folding component.

Referring to fig. 1, 2 and 4, in the embodiment, the chair frame includes two sets of connecting rod assemblies and a plurality of reinforcing rods. The connecting rod assemblies are arranged in two groups in bilateral symmetry, and each group of connecting rod assemblies consists of four rods which are sequentially hinged end to end; and reinforcing rods are connected between the symmetrical connecting rod assemblies. Wherein, link assembly includes bottom bar 1, preceding pole 2, ejector pin 3 and back pole 4, connects through the connecting piece is articulated between each pole. The preferable connecting piece is an injection molding connecting piece, the injection molding connecting piece is fixedly riveted with one rod, and the injection molding connecting piece is hinged with the other rod through a pin shaft. The upper part of the rear rod 4 is also extended and connected with a backrest rod 24. The reinforcing rods comprise a front reinforcing rod 31 connected between the hinged parts of the front rod 2 and the top rod 3, a rear reinforcing rod 32 connected between the two rear rods 4, a bottom reinforcing rod 30 connected to the front section between the two bottom rods 1 and a tail reinforcing rod 33 connected to the rear section between the two bottom rods 1. A neck plate 35 is connected between the tops of the two backrest rods 24. The rod pieces are preferably made of light aluminum materials, and the connecting parts are made of injection molding materials, so that the weight of the electric wheelchair is integrally reduced.

Structurally, the bottom rod 1 is inclined in a front-high manner and a rear-low manner, the front section of the bottom rod is a pipe, and the rear section of the bottom rod is a seat plate 110. The seat plate 110 is integrally welded to the rear end of the pipe and has a vertical plate structure. The seat plate 110 is approximately triangular in shape. The bottom surface of the seat plate 110 extends downwards along the front section of the pipe in an inclined mode, the seat plate 110 is connected with the front section of the pipe and protrudes upwards, and the protruding part is hinged to a tail connecting piece made of injection molding materials through a pin shaft 15. The tail connecting piece is provided with a socket which is inserted on the seat plate, and a pin shaft 15 is connected between the socket and the seat plate 110. An arc-shaped installation groove is formed in the middle section of the seat plate 110, and the speed reducer 7 is clamped into the installation groove and fixed on the seat plate 110 through bolts. The motor 6 is connected to the inside of reduction gear 7, and the outside of reduction gear 7 is connected with drive rear wheel 5, and each drive rear wheel 5 sets up independent reduction gear 7 and motor 6 promptly. At least two adjusting holes are formed in the rear section of the seat plate 110, and one of the caster wheels 8 is installed in the adjusting hole to adapt to different conditions of a flat road and a ramp.

The pedal connecting piece 12 made of injection molding materials and extending forwards is inserted into the front end of the pipe of the bottom rod 1, and the pedal connecting piece 12 is connected with the pipe through a rivet. The inner sides of the extending free ends of the two pedal connecting pieces 12 are connected with one side connecting plate 14 through a hinge pin 34, and the pedal 13 is arranged between the two side connecting plates 14. The two side connecting plates 14 are in a stepped inclined plate structure with a reduced inward distance, for example, the upper and lower ends of the side connecting plates 14 are vertical surfaces, and the middle is an inward-folded inclined surface. The pedal 13 is an integral long plate which is stepped on by both feet, and a rubbing strip along the length direction is arranged on the upper surface of the pedal 13.

The stiffener 30 at the bottom of the welding is between the anterior segment tubular product middle part of two sill bars 1, and the stiffener 30 passes through draw-in groove and bolt fixed mounting battery 29 near the end, and the mouth that charges is seted up to the side of battery 29, and the protecting cover is addd to the department of charging mouth. The battery 29 is also connected to the controller 27 through an electric wire, and the controller 27 is connected to the motors 6 on both sides through electric wires, respectively. The rear side of the mounting groove on the seat plate of the two bottom rods 1 is provided with a second protrusion, and a tail reinforcing rod 33 is fixedly connected between the second protrusions.

The front rod 2 is located outside the bottom rod 1 and the top rod 3, i.e. the top rod 3 and the bottom rod 1 are located on the same plane in the present embodiment. The bottom cartridge of front rod 2 is in the front wheel connecting piece 11 of the material of moulding plastics and through rivet fixation, and front wheel connecting piece 11 is located the footboard connecting piece 12 outside, and front wheel connecting piece 11 is nearly perpendicular setting with footboard connecting piece 12 under the electronic wheelchair expansion state, and front wheel connecting piece 11 is articulated through round pin axle 15 with footboard connecting piece 12. The lower end of the front wheel connecting piece is internally inserted and hinged with a front fork 10, and the lower part of the front fork 10 is provided with a front wheel 9. The inside cartridge in the top of preceding pole 2 has the preceding top connecting piece 20 of the material of moulding plastics, and the other end of preceding top connecting piece 20 upwards extends backward to one side and articulates the ejector pin 3 that is located preceding top connecting piece 20 inboard through round pin axle 15. The front reinforcing rod 31 is connected between the inner sides of the hinged parts of the top rod 3 and the front rod 2, and the front reinforcing rod is arranged through the obliquely downward forward extending plate at the hinged part, so that the thigh part is supported to a certain extent, and the sitting posture of a human body is more comfortable.

The rear end of the mandril 3 extends and is inserted in the pore plate 22, and the inner side of the pore plate 22 is provided with a rear rod 4 and a backrest rod 24. The bottom end of the rear rod 4 is inserted into a tail connecting piece 19 which is connected with the seat plate 110 and extends upwards in an inclined direction and is fixed by riveting, the top of the rear rod 4 is sleeved in a back connecting piece 21 made of injection molding materials and is fixed by riveting, and the back connecting piece 21 extends upwards and is inserted with a back rod 24 through an opening and is fixed by riveting. The orifice plate 22 is hinged to the inner back connector 21 by means of a pin 15. The rear reinforcing rod 32 is welded and fixed between the two rear rods 4 and close to the rear connecting piece 21. An arc-shaped neck plate 35 protruding backwards is connected between the tops of the two backrest rods 24.

Top fixed connection handle frame 25 between 3 two pin joints of ejector pin, support section, horizontal segment and back support section before handle frame 25 includes, and the horizontal segment is close to the front side setting, and the inclination of preceding support section is less than the inclination of back support section promptly, and the down tube setting of back support section is convenient for support the elbow. The handle plate 26 is detachably mounted on the horizontal section of the handle frame 25 by means of clamping or bolts. The top rod 3 and the back rod 24 are sleeved with a cushion lining 36 and a back lining 37 which are connected in a split or integral way in advance before assembly, and a soft cushion and a soft back can be added.

A control frame 28 is arranged on the handle frame 25 or the backrest rod 24 on any side, the control frame 28 is fixed through clamping or bolts, and a front-back through square through hole is formed in the outer side of the control frame 28 relative to the chair frame. The controller 27 is internally provided with a control module, the battery 29 supplies power to the control module and the motor 6, and the control module controls a motor circuit according to the button triggering indication to further operate the electric wheelchair, which is the prior art and is not described in detail. The buttons of the controller comprise a switch, an acceleration button, a deceleration button, an alarm button, a left turn button, a right turn button and the like. A connecting seat 271 is arranged below the controller 27, the connecting seat 271 is provided with a long-strip-shaped insert rod matched with the through hole, and the upper surface and the interval of the insert rod are provided with arc grooves. The through hole of the control frame is provided with a wave ball screw matched with the arc groove. When the connecting seat is inserted into the through hole of the control frame, the bead screw floats under stress or slides into or slides out of the groove until the bead screw stops at a certain position, and the bead screw is clamped in the groove to lock the relative position of the inserted rod and the through hole.

The folding component is arranged between any group of symmetrical hinged points of the two connecting rod components of the chair frame. As shown in fig. 4-7 and 9, in the present embodiment, the folding assembly is disposed between the top bar 3 and the rear bar 4, and includes the hole plate 22, the lock pin 23, and the pull rope 234, the hole plate 22 is connected to the hinge point along the rear end of the top bar 3 as described above, the opening hole 221 and the folding hole 222 are disposed on the hole plate 22, the opening hole 221 and the folding hole 222 are located on the same arc line with the center of the hinge point as the center of circle, the lock pin 23 corresponds to the opening hole 221 and the folding hole 222 and is inserted into the mounting hole preset on the back connector 21 of the rear bar 4 through a spring, and the pull rope 234 is connected between the two opposite lock pins 23.

In the concrete structure, the front section of the pore plate 22 is in a circular tube shape, and the front section of the pore plate 22 is sleeved on the outer side of the rear end of the ejector rod 3 and is fixed through a rivet. The rear section of the orifice plate 22 is in the shape of a sector plate, the center of the sector plate corresponds to the hinge point, the unfolding hole 221 and the folding hole 222 are located on an arc line with the hinge point as the center, and the unfolding hole 221 and the folding hole 222 correspond to the rear sides of the rear rod 4 and the back rod 24. The locking pin 23 is installed at the rear side of the back connection rod 21 corresponding to the rear rod 4 corresponding to the unfolding hole 221 and the folding hole 222. As shown in fig. 5, the end of the locking pin 23 matching with the orifice plate 22 is an outer shaft 231, and the outer shaft 231 is in clearance fit with the unfolding hole, the folding hole and the mounting hole; the middle part of the lock pin is reduced into an intermediate shaft 232, a common compression spring type spring (the spring is omitted in the figure) is arranged between the intermediate shaft 232 and the mounting hole, one end of the spring is fixedly connected with the inner side of the middle part reduced diameter, and the other end of the spring is connected with the outer side of the mounting hole; the other end of the lock pin is an inner shaft 233 which extends out of the mounting hole and is provided with a limit convex edge, and a pull rope 234 which is convenient for force application is connected between the inner shafts of the two opposite lock pins 23.

In the structure, the lock pin 23 is inserted into the unfolding hole 221 to be locked in the unfolding state under the action of the spring acting force when the electric wheelchair is unfolded, when the electric wheelchair is folded, the force is applied to pull the lock pin outwards to compress the spring force to be separated from the unfolding hole, the four-bar assembly is folded to the folding state, the lock pin is aligned to the folding hole to be aligned to the lock pin, and the lock pin 23 is automatically inserted into the folding hole to be locked in the folding state under the action of the restoring force of the spring.

As shown in fig. 1-3 and 7-8, in order to further improve the overall stability of the folded electric wheelchair, the footrest 13 is provided with a folding automatic locking assembly. The folding auto-lock assembly includes a cord 17 and a lock plate 18. A rope 17 is connected to either side of the pedal 13 or the side connecting plate 14 connected with the pedal, the other end of the rope 17 is connected with a crescent-shaped locking plate 18, and the other end of the locking plate 18 is sleeved on the lock pin 15 at the hinge point of the adjacent connecting rod assembly (namely, the locking plate 18 is hinged on the lock pin 15 at the hinge point of the adjacent front rod 2 and the bottom rod 1). The inner side of the pin shaft 15 at the hinge point extends out of the injection molding connecting piece at the corresponding position, the extending end of the pin shaft 15 is provided with a square shaft, and the locking plate 18 is correspondingly provided with a square hole and is sleeved on the square shaft. During folding, the pin 15 rotates to drive the locking plate 18 to rotate, thereby tensioning the rope and reducing the moving range of the pedal 14. In the unfolding process, the pin shaft rotates reversely to drive the seat board to release the rope 17, and the moving range of the pedal plate 14 is correspondingly enlarged.

Example 2

This example differs from example 1 in that: the folding assembly is replaced with an electric push rod connected to the battery 29 and the controller 27, respectively, and installed between the rear stiffener 32 and the bottom stiffener 30. Alternatively, it may be mounted on the diagonal of the link assembly on either side or between the front and

rear spars

31 and 33.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A folding electric wheelchair is characterized in that: the foldable chair comprises a chair frame, a driving rear wheel, a front wheel, a folding assembly and a controller, wherein the chair frame comprises two groups of symmetrically arranged connecting rod assemblies consisting of four rods which are sequentially hinged end to end and reinforcing rods connected between the two groups of connecting rod assemblies; driving rear wheels connected with a motor are symmetrically arranged on the two sides of the rear part of the chair frame, and front wheels are symmetrically hinged on the two sides of the front part of the chair frame; the chair frame is provided with a battery connected with the motor through the controller; the chair frame is provided with a folding assembly, and the folding assembly is operated to enable the connecting rod assembly of the chair frame to be in an unfolding state or a folding state; the folding component is arranged between the symmetrical hinged points of any pair of the two connecting rod components of the chair frame; the folding assembly comprises a pore plate, a lock pin and a pull rope, the pore plate is connected to a hinge point along one rod of the connecting rod assembly, an unfolding hole and a folding hole which are located on the same arc line with the hinge point as the circle center are formed in the pore plate, the lock pin corresponds to the unfolding hole and the folding hole and is arranged in a preset mounting hole in the rod of the adjacent pore plate in a penetrating mode through a spring, and the pull rope is connected between the two opposite lock pins.

2. The folding electric wheelchair as claimed in claim 1, wherein: the pore plate is arranged on the rod positioned on the outer side at the hinge point of the connecting rod assembly, and the lock pin is arranged on the rod positioned on the inner side at the hinge point of the connecting rod assembly; the locking pin is in clearance fit with one end of the pore plate, the hole, the folding hole and the mounting hole are unfolded, the middle of the locking pin is reduced in diameter, a spring is mounted between the locking pin and the mounting hole, and the other end of the locking pin extends out of the mounting hole and is provided with a limiting convex edge.

3. A folding electric wheelchair in accordance with claim 2, wherein: the rotatable pedal is installed in front of the bottom of the chair frame, the pedal is connected with the locking plate through a rope, and the locking plate is installed on a square column preset at the extending end of a pin shaft at the hinge joint of the connecting rod assemblies of adjacent pedals in a matched mode through a square hole.

4. The folding electric wheelchair as claimed in claim 1, wherein: the connecting rod assembly comprises a bottom rod, a front rod, a top rod and a rear rod, and all the rods are connected in a hinged mode through connecting pieces.

5. The folding electric wheelchair as claimed in claim 4, wherein: the connecting piece is the connecting piece of moulding plastics, and the connecting piece of moulding plastics is fixed riveting with one of them pole, and the connecting piece of moulding plastics is articulated through the round pin axle with another pole.

6. The folding electric wheelchair as claimed in claim 4, wherein: the stiffener includes connecting preceding stiffener between preceding pole and the articulated department of ejector pin, connecting the back stiffener between two back poles, connecting the end stiffener of anterior segment between two bottom poles and connecting the tail stiffener of back end between two bottom poles.

7. The folding electric wheelchair as claimed in claim 4, wherein: the upper part of the ejector rod is connected with a handle frame, and the upper part of the rear rod extends and is connected with a backrest rod; the handle frame or the backrest rod on any side is provided with a control frame with a preset through hole, the controller is arranged in the through hole of the control frame through an inserted bar which is fixedly connected with a connecting seat below and is preset, the inserted bar is provided with arc grooves arranged at intervals, and the through hole of the control frame is provided with a ball screw matched with the arc grooves.

8. The folding electric wheelchair as claimed in claim 7, wherein: the handle frame is detachably provided with a handle plate, the ejector rod and the backrest rod are sleeved with a seat liner and a backrest liner which are connected in a split or integrated manner, a neck plate is connected between the tops of the backrest rods, and a battery is arranged between the two bottom rods.

9. The folding electric wheelchair as claimed in claim 4, wherein: the utility model discloses a motor, including base rod, connecting piece, mounting groove and bolt fastening reduction gear, base rod is the slope setting of high back low before the base rod is, and the front segment of base rod is tubular product, and the back end of base rod is the vertical bedplate of the integrative welded with tubular product, the anterior segment of bedplate is articulated to be used for the connecting piece of being connected with the back rod through the round pin axle, and the middle section of bedplate passes through mounting groove and bolt fastening reduction gear, and the motor is connected to the inboard of reduction gear, and the drive rear wheel is connected in the outside of reduction gear, and two at least regulation holes are seted up to the back end of bedplate, and the installation in the regulation hole of truckle alternative.

10. The folding electric wheelchair as claimed in claim 4, wherein: the pedal connecting pieces are connected along the front of the bottom rod, the inner sides of the pedal connecting pieces are connected with one side connecting plate through hinge pins, the pedal plate is installed between the two side connecting plates, the two side connecting plates are of inclined plate structures with inward intervals becoming smaller, and the pedal plate is of a long strip plate shape with a friction strip arranged on the upper surface.