CN219782987U

CN219782987U - Folding electric wheelchair

Info

Publication number: CN219782987U
Application number: CN202321302215.XU
Authority: CN
Inventors: 朱剑; 韩之润
Original assignee: CHANGSHU PINGFANG WHEELCHAIR CO LTD
Current assignee: CHANGSHU PINGFANG WHEELCHAIR CO LTD
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-10-03
Anticipated expiration: 2033-05-26

Abstract

The utility model provides a foldable electronic wheelchair, includes left and right frame, left and right drive wheel is installed to the front side lower extreme of left and right frame, and there is left folding leg the lower extreme of left frame, and there is right folding leg the lower extreme of right frame, and left and right folding leg slant upwards extends and intercross and at the middle part articulated, and characteristics are: the left frame comprises a left frame lower beam, a left frame upper beam, a left frame connecting beam and a left frame fixing plate, the left folding frame is hinged with one side surface of the left frame lower beam, the rear end of the left frame lower beam is telescopically fixed with a left universal wheel, and a left driving wheel is arranged at the lower end of the left frame fixing plate; the right frame comprises a right frame lower beam, a right frame upper beam, a right frame connecting beam and a right frame fixing plate, the right folding frame is hinged with one side surface of the right frame lower beam, the rear end of the right frame lower beam is telescopically fixed with a right universal wheel, and the right driving wheel is arranged at the lower end of the right frame fixing plate. The unfolding and the storage of the wheelchair are realized rapidly, the applicability and the stability of the wheelchair are improved, and the occupied space is reduced.

Description

Folding electric wheelchair

Technical Field

The utility model belongs to the technical field of electric wheelchairs, and particularly relates to a folding electric wheelchair.

Background

Wheelchairs are a relatively common mobility aid in daily life, which is beneficial to the movement of patients and old people, and are commonly used in some medical places and families of patients. Along with the progress of science and technology, the type and the function of wheelchair are also more and more, and traditional hand propelled folding wheelchair commonly exists that the size is single adjustable, needs the people help hard to push away, fold and the equipment degree of difficulty is big and can't accomodate and use fast problem, especially along with wheelchair lease and shared service's development, this kind of hand propelled wheelchair can't satisfy user's demand at all, this mainly stands in: on the problem that the space occupied by the storage cannot be further compressed due to the fact that the distance between the front wheel and the rear wheel cannot be adjusted, particularly for large-size users, the wheelchair is easy to topple forward due to the fact that the distance between the wheels is too small, and potential safety hazards exist.

In view of the above, it is necessary to design a folding electric wheelchair that is simple in structure, convenient to fold and assemble, capable of being quickly stored and used, and capable of arbitrarily adjusting the wheel spacing according to the user's needs. To this end, the inventors have advantageously devised that the technical solutions described below are created in this context.

Disclosure of Invention

The utility model aims to provide a folding electric wheelchair, which is beneficial to improving the folding structure of the wheelchair so as to rapidly realize the unfolding and the storage of the wheelchair, and simultaneously, a user can randomly adjust the wheel distance between the front wheel and the rear wheel according to actual needs so as to improve the applicability and the stability of the wheelchair, and the occupied space of the wheelchair can be reduced in a storage state.

The utility model aims to achieve the purpose, a folding electric wheelchair comprises a left frame and a right frame, wherein the front lower ends of the left frame and the right frame are respectively provided with a left driving wheel and a right driving wheel, the lower end of the left frame is hinged with a left folding frame at one side towards the right frame, the lower end of the right frame is hinged with a right folding frame at one side towards the left frame, the left folding frame and the right folding frame respectively extend obliquely upwards and mutually intersect and are mutually hinged at the middle part, and the upper ends of the left folding frame and the right folding frame respectively rest on the right frame and the left frame to enable the left frame and the right frame to form a foldable state, and the folding wheelchair is characterized in that: the left frame comprises a left frame lower beam, a left frame upper beam, a left frame connecting beam connected between the left frame lower beam and the left frame upper beam and positioned at the rear end, and a left frame fixing plate connected between the left frame lower beam and the left frame upper beam and positioned at the front end, the left folding frame is hinged with one side surface of the left frame lower beam, the rear end of the left frame lower beam is telescopically fixed with a left universal wheel, and the left driving wheel is arranged at the position of the lower end of the left frame fixing plate; the right frame comprises a right frame lower beam, a right frame upper beam, a right frame connecting beam and a right frame fixing plate, wherein the right frame connecting beam is connected between the right frame lower beam and the right frame upper beam and positioned at the rear end, the right frame fixing plate is connected between the right frame lower beam and the right frame upper beam and positioned at the front end, the right folding frame is hinged with one side surface of the right frame lower beam, a right universal wheel is telescopically fixed at the rear end of the right frame lower beam, and the right driving wheel is arranged at the position of the lower end of the right frame fixing plate.

In a specific embodiment of the utility model, a left motor for driving the left driving wheel to rotate is arranged on the left driving wheel, a left motor fixing seat is formed on the left motor, and the left motor fixing seat is fixedly connected with the lower end of a left frame fixing plate; the right motor is used for driving the right driving wheel to rotate, a right motor fixing seat is formed on the right motor, and the right motor fixing seat is fixedly connected with the lower end of the right frame fixing plate.

In another specific embodiment of the utility model, the left universal wheel is rotationally arranged below a left universal wheel seat, a left telescopic beam extends to one side of a lower cross beam of the left frame of the left universal wheel seat, and the left telescopic beam is slidably arranged in the lower cross beam of the left frame in a penetrating way and is locked by a left telescopic beam fixing screw; the right universal wheel is rotationally arranged below a right universal wheel seat, a right telescopic beam extends to one side of a lower cross beam of the right frame of the right universal wheel seat, and the right telescopic beam is slidably arranged in the lower cross beam of the right frame in a penetrating manner and is locked by a right telescopic beam fixing screw.

In another specific embodiment of the present utility model, a seat back support is disposed between the left frame upper beam and the right frame upper beam and at the front end, the left and right sides of the lower end of the seat back support are respectively hinged to the left frame upper beam and the right frame upper beam, a seat back turnover mechanism is respectively formed between the seat back support and the left frame upper beam and between the seat back support and the right frame upper beam, the two seat back turnover mechanisms each comprise a turnover base and a locking lug, the two turnover bases are respectively fixed on the left frame upper beam and the right frame upper beam, the two locking lugs are respectively fixed at the left and right sides of the lower end of the seat back support and respectively matched with the turnover bases on the corresponding sides, a group of locking holes are respectively formed on the locking lugs at intervals and are locked with the corresponding turnover bases through pins, a folding rod is formed in the middle of the seat back support along the left and right directions, the left and right sides of the upper end of the seat back support are respectively formed with a handle, and the middle of the folding rod is formed with a folding piece, and the two ends of the folding piece are respectively hinged to the seat back support to form a three-seat back hinge structure.

In still another specific embodiment of the present utility model, the left frame upper beam and the right frame upper beam are respectively provided with a pedal at one end near the left universal wheel and the right universal wheel, and the two pedals are respectively fixedly connected with the left frame upper beam and the right frame upper beam at the corresponding sides through a pedal bracket.

In still another specific embodiment of the present utility model, a left armrest and a right armrest are respectively fixed at the upper ends of the left frame and the right frame, a left armrest fixing seat and a right armrest fixing seat are respectively formed on the left frame upper cross member and the right frame upper cross member, the left armrest and the right armrest are respectively fixed on the left armrest fixing seat and the right armrest fixing seat, and the left folding frame and the right folding frame are respectively placed on the right armrest fixing seat and the left armrest fixing seat in the unfolded state of the wheelchair.

In a further specific embodiment of the present utility model, a battery box and an electrical control box are respectively fixed on the left frame and the right frame, wherein the battery box is respectively fixed with the left frame by a pair of upper and lower battery box fixing lugs, the electrical control box is respectively fixed with the right frame by a pair of upper and lower electrical control box fixing lugs, and the battery box and the electrical control box are respectively electrically connected with the left driving wheel and the right driving wheel.

In a further specific embodiment of the present utility model, the left and right frames are respectively fixed with a left fender and a right fender at upper positions corresponding to the left and right driving wheels.

In yet another specific embodiment of the present utility model, the lower ends of the left frame fixing plate and the right frame fixing plate are respectively formed with a left supporting wheel and a right supporting wheel forward.

After the structure is adopted, the utility model has the beneficial effects that: due to the adoption of the structure that the left frame and the right frame are crossed and folded and the structure that the left universal wheels and the right universal wheels are fixed in a telescopic manner, a user can randomly adjust the wheel spacing of the front wheels and the rear wheels according to needs, so that the applicability and the stability of the wheelchair are improved, the use safety is ensured, the occupied space of the wheelchair can be effectively reduced in a storage state, and meanwhile, the unfolding and storage actions of the wheelchair can be rapidly realized.

Drawings

Fig. 1 is an exploded perspective view of a folding electric wheelchair according to the present utility model.

Fig. 2 is a rear perspective view of the embodiment of fig. 1.

In the figure: 1. left frame, 11, left folding frame, 12, left frame lower beam, 13, left frame upper beam, 131, left armrest fixing seat the left frame comprises a left frame connecting beam, a left frame fixing plate, a left armrest, a left mud guard, a left support wheel and a left support wheel, wherein the left frame connecting beam is arranged on the left frame connecting beam; 2. the right frame, 21, a right folding frame, 22, a right frame lower beam, 23, a right frame upper beam, 231, a right armrest fixing seat 24, a right frame connecting beam, 25, a right frame fixing plate, 26, a right armrest, 27, a right mud guard and 28, and a right supporting wheel; 3. left driving wheel, 31, left motor, 311, left motor fixing seat; 4. right driving wheel, 41, right motor, 411, right motor fixing seat; 5. left universal wheels, 51, left universal wheel seats, 52, left telescopic beams, 521 and left telescopic beam fixing screws; 6. the right universal wheel, 61, right universal wheel seat, 62, right telescopic beam, 621, right telescopic beam fixing screw; 7. the seat back support, 71, a seat back turnover mechanism, 711, a turnover base, 712, locking lugs, 7121, locking holes, 72, seat back folding rods, 721, folding pieces and 73, handles; 8. pedal 81 pedal bracket; 9. the battery box, 91. Battery box fixed lugs; 10. and the electric control box is fixed on the lug.

Detailed Description

The following detailed description of specific embodiments of the utility model, while given in connection with the accompanying drawings, is not intended to limit the scope of the utility model, and any changes that may be made in the form of the inventive concepts described herein, without departing from the spirit and scope of the utility model.

In the following description, all concepts related to the directions or azimuths of up, down, left, right, front and rear are based on the positions shown in fig. 1, and thus should not be construed as being particularly limited to the technical solutions provided by the present utility model.

Referring to fig. 1 and 2, the present utility model relates to a foldable electric wheelchair, comprising a left frame 1 and a right frame 2, wherein a left driving wheel 3 and a right driving wheel 4 are respectively mounted at the front lower ends of the left frame 1 and the right frame 2, a left folding frame 11 is hinged at the lower end of the left frame 1 towards the right frame 2, a right folding frame 21 is hinged at the lower end of the right frame 2 towards the left frame 1, the left folding frame 11 and the right folding frame 21 respectively extend obliquely upwards and mutually intersect, and the middle parts of the left folding frame and the right folding frame are mutually hinged, the upper ends of the left folding frame 11 and the right folding frame 21 respectively rest on the right frame 2 and the left frame 1, so that the left frame 1 and the right frame 2 form a relatively folded state.

The technical innovation point of the utility model is as follows: the left frame 1 comprises a left frame lower beam 12, a left frame upper beam 13, a left frame connecting beam 14 connected between the left frame lower beam 12 and the left frame upper beam 13 and positioned at the rear end, and a left frame fixing plate 15 connected between the left frame lower beam 12 and the left frame upper beam 13 and positioned at the front end, the left folding frame 11 is hinged with one side surface of the left frame lower beam 12, the rear end of the left frame lower beam 12 can be fixed with a left universal wheel 5 in a front-back telescopic manner, and the left driving wheel 3 is arranged at the position of the lower end of the left frame fixing plate 15; the right frame 2 comprises a right frame lower beam 22, a right frame upper beam 23, a right frame connecting beam 24 connected between the right frame lower beam 22 and the right frame upper beam 23 and positioned at the rear end, and a right frame fixing plate 25 connected between the right frame lower beam 22 and the right frame upper beam 23 and positioned at the front end, the right folding frame 21 is hinged with one side surface of the right frame lower beam 22, a right universal wheel 6 is telescopically fixed at the rear end of the right frame lower beam 22 back and forth, and the right driving wheel 4 is arranged at the position of the lower end of the right frame fixing plate 25. The left universal wheel 5 is rotatably arranged below a left universal wheel seat 51, a left telescopic beam 52 extends to one side of the left lower frame cross beam 12 of the left universal wheel seat 51, and the left telescopic beam 52 is slidably arranged in the lower frame cross beam 12 in a penetrating manner and is locked by a left telescopic beam fixing screw 521; the right universal wheel 6 is rotatably disposed below a right universal wheel seat 61, a right telescopic beam 62 extends to one side of the right lower frame rail 22 from the right universal wheel seat 61, and the right telescopic beam 62 slidably passes through the right lower frame rail 22 and is locked by a right telescopic beam fixing screw 621.

Further, a left motor 31 for driving the left driving wheel 3 to rotate is mounted on the left driving wheel 3, a left motor fixing seat 311 is formed on the left motor 31, and the left motor fixing seat 311 is fixedly connected with the lower end of the left frame fixing plate 15 through a screw; the right driving wheel 4 is provided with a right motor 41 for driving the right driving wheel 4 to rotate, a right motor fixing seat 411 is formed on the right motor 41, and the right motor fixing seat 411 is fixedly connected with the lower end of the right frame fixing plate 25 through a screw.

In this embodiment, a seat back bracket 7 is disposed between the left frame upper beam 13 and the right frame upper beam 23 and at the front end, the left and right sides of the lower end of the seat back bracket 7 are respectively hinged to the left frame upper beam 13 and the right frame upper beam 23, a seat back tilting mechanism 71 is respectively formed between the seat back bracket 7 and the left frame upper beam 13 and the right frame upper beam 23, the two seat back tilting mechanisms 71 each comprise a tilting base 711 and a locking lug 712, the two tilting bases 711 are respectively fixed on the left frame upper beam 13 and the right frame upper beam 23, the two locking lugs 712 are respectively fixed at the left and right sides of the lower end of the seat back bracket 7 and are respectively matched with the tilting bases 711 at the corresponding sides, a group of locking holes 7121 are respectively formed on the locking lugs 712 at intervals and are respectively locked with the corresponding tilting bases 711, the middle part of the seat back bracket 7 is formed with a seat back folding rod 72 along the left and right directions, the left and right sides of the upper end of the seat back bracket 7 are respectively formed with a handle 73, the middle part of the seat back folding rod 72 is formed with a folding rod 72, the front end 721 is respectively hinged to the folding rod 72, and the two ends of the front end 721 are respectively formed in a three-folded structure.

Further, the frame upper beam 13 and the right frame upper beam 23 are respectively provided with a pedal 8 at one end near the left universal wheel 5 and the right universal wheel 6, and the two pedals 8 are respectively fixedly connected with the left frame upper beam 13 and the right frame upper beam 23 at the corresponding sides through a pedal bracket 81. A left fender 17 and a right fender 27 are fixed to the left frame 1 and the right frame 2 at positions above the left drive wheel 3 and the right drive wheel 4, respectively. The lower ends of the left frame fixing plate 15 and the right frame fixing plate 25 are respectively formed with a left supporting wheel 18 and a right supporting wheel 29 forward.

Further, a left armrest 16 and a right armrest 26 are respectively fixed to the upper ends of the left frame 1 and the right frame 2, a left armrest fixing seat 131 and a right armrest fixing seat 231 are respectively formed on the left frame upper cross member 13 and the right frame upper cross member 23, the left armrest 16 and the right armrest 26 are respectively fixed to the left armrest fixing seat 131 and the right armrest fixing seat 231, and the left folding frame 11 and the right folding frame 21 are respectively rested on the right armrest fixing seat 231 and the left armrest fixing seat 131 in a wheelchair unfolded state.

In this embodiment, a battery box 9 and an electrical control box 10 are respectively fixed on the left frame 1 and the right frame 2, the battery box 9 is respectively screwed to the left frame 1 through an upper pair of battery box fixing lugs 91 and a lower pair of battery box fixing lugs 91, the electrical control box 10 is respectively screwed to the right frame 2 through an upper pair of electrical control box fixing lugs 101 and the lower pair of electrical control box fixing lugs 101, and the battery box 9 and the electrical control box 10 are respectively electrically connected to the left driving wheel 3 and the right driving wheel 4. The electrical connection structure between the battery box 9 and the electrical control box 10 and the left and right driving wheels 3, 4 belongs to the prior known technology, and is not related here.

With continued reference to fig. 1 in combination with fig. 2, when the electric wheelchair is needed, the left frame 1 and the right frame 2 are first unfolded, the left folding frame 11 and the right folding frame 21 are rotated in a crossing manner until the upper ends of the left folding frame 11 and the right folding frame 21 rest on the corresponding right armrest fixing seat 231 and the left armrest fixing seat 131 respectively, at this time, the chair back folding rod 72 is unfolded under the action of the folding member 721 to form a chair back, and then the extending distance between the left universal wheel 5 and the right universal wheel 6 is adjusted according to the needs of the user, which is specifically: the left telescopic beam fixing screw 521 and the right telescopic beam fixing screw 621 are unscrewed, so that the left telescopic beam 52 and the right telescopic beam 62 can slide back and forth and be adjusted to proper positions, and then the left telescopic beam fixing screw 521 and the right telescopic beam fixing screw 621 are screwed, thereby realizing the adjustment of the distance between the front wheel and the rear wheel of the wheelchair; when the wheelchair is needed to be stored, the left frame 1 and the right frame 2 are mutually gathered, the left folding frame 11 and the right folding frame 21 are mutually crossed and overlapped, at this time, the chair back folding rod 72 is folded under the action of the folding piece 721, and meanwhile, the extending distance of the left universal wheel 5 and the right universal wheel 6 is adjusted to be the lowest, so that the folded volume of the wheelchair is effectively reduced, and the wheelchair is convenient to store and transport in a logistics mode.

Claims

1. The utility model provides a foldable electric wheelchair, includes a left frame (1) and a right frame (2), a left drive wheel (3) and a right drive wheel (4) are installed respectively to the front side lower extreme of left side frame (1) and right frame (2), the lower extreme of left side frame (1) articulates there is a left folding leg (11) towards one side of right frame (2), the lower extreme of right side frame (2) articulates there is a right folding leg (21) towards left frame (1) one side, left side folding leg (11) and right folding leg (21) extend obliquely upwards respectively and cross each other and articulated each other at the middle part each other, the upper end of left side folding leg (11) and right folding leg (21) is shelved respectively on right frame (2) and left frame (1), makes left side frame (1) and right frame (2) form the folding state that can receive and open, its characterized in that: the left frame (1) comprises a left frame lower beam (12), a left frame upper beam (13) and a left frame connecting beam (14) connected between the left frame lower beam (12) and the left frame upper beam (13) and positioned at the rear end, and a left frame fixing plate (15) connected between the left frame lower beam (12) and the left frame upper beam (13) and positioned at the front end, wherein the left folding frame (11) is hinged with one side surface of the left frame lower beam (12), a left universal wheel (5) is telescopically fixed at the rear end of the left frame lower beam (12), and the left driving wheel (3) is arranged at the position of the lower end of the left frame fixing plate (15); the right frame (2) comprises a right frame lower beam (22), a right frame upper beam (23) and a right frame connecting beam (24) connected between the right frame lower beam (22) and the right frame upper beam (23) and positioned at the rear end, and a right frame fixing plate (25) connected between the right frame lower beam (22) and the right frame upper beam (23) and positioned at the front end, wherein the right folding frame (21) is hinged with one side surface of the right frame lower beam (22), a right universal wheel (6) is telescopically fixed at the rear end of the right frame lower beam (22), and the right driving wheel (4) is arranged at the position of the lower end of the right frame fixing plate (25).

2. A folding electric wheelchair as claimed in claim 1, characterized in that: the left driving wheel (3) is provided with a left motor (31) for driving the left driving wheel (3) to rotate, a left motor fixing seat (311) is formed on the left motor (31), and the left motor fixing seat (311) is fixedly connected with the lower end of the left frame fixing plate (15); the right motor (41) for driving the right driving wheel (4) to rotate is arranged on the right driving wheel (4), a right motor fixing seat (411) is formed on the right motor (41), and the right motor fixing seat (411) is fixedly connected with the lower end of the right frame fixing plate (25).

3. A folding electric wheelchair as claimed in claim 1, characterized in that: the left universal wheel (5) is rotationally arranged below a left universal wheel seat (51), a left telescopic beam (52) extends to one side of a left frame lower cross beam (12) of the left universal wheel seat (51), and the left telescopic beam (52) is slidably arranged in the left frame lower cross beam (12) in a penetrating manner and is locked by a left telescopic beam fixing screw (521); the right universal wheel (6) is rotationally arranged below a right universal wheel seat (61), a right telescopic beam (62) extends to one side of a right frame lower cross beam (22) of the right universal wheel seat (61), and the right telescopic beam (62) is slidably arranged in the right frame lower cross beam (22) in a penetrating manner and is locked through a right telescopic beam fixing screw (621).

4. A folding electric wheelchair as claimed in claim 1, characterized in that: a seat back support (7) is arranged between the left frame upper beam (13) and the right frame upper beam (23) and positioned at the front end, the left side and the right side of the lower end of the seat back support (7) are respectively hinged on the left frame upper beam (13) and the right frame upper beam (23), the seat back support (7) is respectively provided with a seat back turnover mechanism (71) between the seat back support (7) and the left frame upper beam (13) and the right frame upper beam (23), the two seat back turnover mechanisms (71) respectively comprise a turnover base (711) and a locking lug (712), the two turnover bases (711) are respectively fixed on the left frame upper beam (13) and the right frame upper beam (23), the two locking lugs (712) are respectively fixed at the left side and the right side of the lower end 712 of the seat back support (7) and are respectively matched with the turnover bases (711) at corresponding sides, a group of locking holes (7121) are respectively arranged on the locking lugs (7121) at intervals and are respectively locked with the corresponding turnover bases (711) through pins, the middle part of the seat back support (7) is respectively provided with a folding handle part (72) along the left side and the seat back support (7) and the middle part is respectively provided with a folding part (72) at the left side and the two folding part (72) at the two sides of the seat back support (721) respectively, the chair back folding rod (72) forms a three-section hinge structure.

5. A folding electric wheelchair as claimed in claim 1, characterized in that: the left frame upper beam (13) and the right frame upper beam (23) are respectively provided with a pedal (8) at one end close to the left universal wheel (5) and the right universal wheel (6), and the two pedals (8) are respectively fixedly connected with the left frame upper beam (13) and the right frame upper beam (23) at the corresponding sides through a pedal bracket (81).

6. A folding electric wheelchair as claimed in claim 1, characterized in that: the upper ends of the left frame (1) and the right frame (2) are respectively fixed with a left armrest (16) and a right armrest (26), a left armrest fixing seat (131) and a right armrest fixing seat (231) are respectively formed on the left frame upper cross beam (13) and the right frame upper cross beam (23), the left armrest (16) and the right armrest (26) are respectively fixed on the left armrest fixing seat (131) and the right armrest fixing seat (231), and the left folding frame (11) and the right folding frame (21) are respectively placed on the right armrest fixing seat (231) and the left armrest fixing seat (131) in a wheelchair unfolding state.

7. A folding electric wheelchair as claimed in claim 1, characterized in that: the electric bicycle is characterized in that a battery box (9) and an electric control box (10) are respectively fixed on the left bicycle frame (1) and the right bicycle frame (2), wherein the battery box (9) is respectively fixed with the left bicycle frame (1) through an upper pair of battery box fixing lugs (91) and a lower pair of battery box fixing lugs (91), the electric control box (10) is respectively fixed with the right bicycle frame (2) through an upper pair of electric control box fixing lugs (101) and a lower pair of electric control box fixing lugs (101), and the battery box (9) and the electric control box (10) are respectively electrically connected with the left driving wheel (3) and the right driving wheel (4).

8. A folding electric wheelchair as claimed in claim 1, characterized in that: the left frame (1) and the right frame (2) are respectively fixed with a left mudguard (17) and a right mudguard (27) at the upper positions corresponding to the left driving wheel (3) and the right driving wheel (4).

9. A folding electric wheelchair as claimed in claim 1, characterized in that: the lower ends of the left frame fixing plate (15) and the right frame fixing plate (25) are respectively provided with a left supporting wheel (18) and a right supporting wheel (29) forwards.