CN217409174U

CN217409174U - Novel folding electric wheelchair

Info

Publication number: CN217409174U
Application number: CN202220431008.3U
Authority: CN
Inventors: 黄康军; 李华海
Original assignee: Zhongshan Rotontek Machinery Co ltd
Current assignee: Zhongshan Rotontek Machinery Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-09-13
Anticipated expiration: 2032-02-28

Abstract

A novel folding electric wheelchair relates to the technical field of wheelchairs. It comprises a seat frame; a front support arm and a rear support arm arranged at two sides of the seat frame; a front wheel assembly; a rear wheel assembly; the motor module is connected with the rear supporting arm; a back bar on the seat frame; a hinge rod connecting the back rod and the front support arm; an armrest assembly on the front support arm; and a battery pack and a controller on the seat frame; the front supporting arm is provided with a front connecting rod, the rear supporting arm is provided with a rear connecting rod, and a folding metal plate component is connected between the front connecting rod and the rear connecting rod; establish back lower connecting rod between controlling two motor module, back lower connecting rod connects electric putter, and folding panel beating subassembly is connected to electric putter's the other end. By adopting the technical scheme, the folding and unfolding function of the wheelchair by one key is realized, the use is very convenient, the folded wheelchair is convenient to carry, and the experience of transportation and carrying is improved.

Description

Novel folding electric wheelchair

Technical Field

The utility model relates to a wheelchair technical field, concretely relates to novel folding electronic wheelchair.

Background

The electric wheelchair is generally used for people with mobility disabilities to take and assist in traveling. With the increasing trend of aging society, the market position of the electric wheelchair is more prominent. Most of electric wheelchairs in the current market are refitted from original manual wheelchairs, and for users, the wheelchairs are large in size and difficult to transport and carry, so that inconvenience is brought to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and shortcomings of the prior art, and provides a novel folding electric wheelchair which has the advantages of quick automatic folding and convenient carrying.

In order to achieve the above object, the utility model adopts the following technical scheme: a novel folding electric wheelchair comprising: a seat frame; the front support arms are arranged on two sides of the seat frame, and front wheel assemblies are arranged at the bottoms of the front support arms; the rear support arms are arranged on two sides of the seat frame and connected with a motor module, and an output shaft of the motor module is fixedly connected with a rear wheel assembly; back rods arranged at two sides of the rear end of the seat frame; the hinge rod is arranged on the back rod, and the other end of the hinge rod is hinged with the front support arm; the armrest component is arranged on the front supporting arm and connected with the rear supporting arm, and an operating handle is arranged on the armrest component; the battery pack and the controller are arranged on the seat frame and are electrically connected with the operating handle; a front connecting rod is arranged between the two front supporting arms, a rear connecting rod is arranged between the two rear supporting arms, and a folding metal plate component is connected between the front connecting rod and the rear connecting rod; the left and right motor modules are provided with a rear lower connecting rod therebetween, the rear lower connecting rod is connected with an electric push rod, and the other end of the electric push rod is connected with the folding metal plate assembly.

The utility model discloses further set up, folding panel beating subassembly includes: the front sheet metal part is connected with the front connecting rod; the rear sheet metal part is connected with the rear connecting rod and the front sheet metal part; the connecting rod block is used for connecting the rear sheet metal part and the electric push rod; the cam block is arranged on the rear sheet metal part and used for locking the connecting rod block; the tension spring is arranged on the cam block and used for enabling the cam block to automatically lock the connecting rod block; the connecting rod block is used for abutting against the rear sheet metal part so as to limit the maximum rotating angle of the electric push rod.

The utility model discloses further set up, the seat frame is equipped with the battery housing, be equipped with public end joint and guided way in the battery housing, the battery package be equipped with female end joint and with guided way complex guide way.

The utility model discloses further set up, battery package quantity is two.

The utility model discloses further set up, back pole is equipped with the back pushing hands, be equipped with on the back pushing hands with the helping hand function button that the motor module electricity is connected.

The utility model discloses further set up, preceding connecting rod is equipped with flat position, preceding support arm be equipped with flat position hole of flat position complex.

The utility model discloses further set up, be equipped with cushion and back of the body pad on the seat frame, the back of the body pad pass through screw connection in on the back pole.

The utility model discloses further set up, the material of back of the body pad is the duroplasts.

After the technical scheme is adopted, the utility model discloses beneficial effect does:

1. set up folding panel beating subassembly between preceding connecting rod and the back connecting rod, motor module is controlling the electric putter who is connected with folding panel beating subassembly, through button control motor, realizes the function that wheelchair a key is folding and is opened, and it is very convenient to use, and the wheelchair portable that folds up has improved the experience of transportation and carrying.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic rear view corresponding to FIG. 1;

FIG. 3 is a schematic side view corresponding to FIG. 1;

fig. 4 is a schematic view of the present invention in a folded state;

fig. 5 is a schematic structural view of a front wheel assembly of the present invention;

fig. 6 is a schematic structural view of the sheet metal folding assembly of the present invention;

fig. 7 is an exploded view of the structure corresponding to fig. 6.

Description of reference numerals:

1. a seat frame; 2. a front support arm; 3. a back bar; 4. a rear pushing handle; 5. a hinged lever; 6. a front wheel assembly; 61. a front fork turning block; 62. a front fork; 63. a spring; 64. a front fork shaft; 7. a front connecting rod; 8. folding the sheet metal component; 81. a front sheet metal part; 82. a rear sheet metal part; 83. a cam block; 84. a connecting rod block; 85. a tension spring; 9. an armrest assembly; 10. an operating handle; 11. a rear support arm; 12. a motor module; 13. a rear connecting rod; 14. a rear lower connecting rod; 15. a battery pack; 16. a controller; 17. a cushion; 18. A back pad; 19. an electric push rod; 20. a battery housing; 21. a boost function button; 22. the push rod installation block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as required without making a contribution, but all the embodiments are protected by the patent law within the scope of the claims of the present invention.

The present embodiment relates to a novel foldable electric wheelchair, as shown in fig. 1 and 2, the main body of the foldable electric wheelchair mainly includes a seat frame 1, and a front support arm 2 and a rear support arm 11 are respectively disposed on two sides of the seat frame 1. The front support arm 2 is fixed at the front end of the seat frame 1 through a filling screw, and a Teflon gasket is arranged between the front support arm 2 and the seat frame 1 to eliminate an assembly gap. The bottom of the front support arm 2 is provided with a front wheel assembly 6, which is assembled with a front wheel. The rear supporting arm 11 is connected with a motor module 12, and an output shaft of the motor module 12 is fixedly connected with a rear wheel assembly and is assembled with a rear wheel. The both sides of the rear end of seat frame 1 are provided with back of the body pole 3, are provided with hinge bar 5 on the back of the body pole 3, and back of the body pole 3 is connected to hinge bar 5's one end, and the other end is articulated with preceding support arm 2. In this way, the seat frame 1, the front support arms 2, the back bar 3 and the hinge bar 5 form a quadrilateral structure, which can maintain the connection when the wheelchair is folded and deformed due to the instability of the quadrilateral, as shown in fig. 4. The front supporting arm 2 is provided with a handrail assembly 9, the handrail assembly 9 is fixed on the rear supporting arm 11 through screws, and the handrail assembly 9 is provided with an operating handle 10 for a user to use. The seat frame 1 is further provided with a battery pack 15 and a controller 16, and the battery pack 15 and the controller 16 are electrically connected to the operating handle 10. Be provided with preceding connecting rod 7 between the preceding supporting arm 2 of both sides, be provided with back connecting rod 13 behind the supporting arm 11 of both sides between, be connected with folding panel beating subassembly 8 between preceding connecting rod 7 and the back connecting rod 13. A rear lower connecting rod 14 is connected between the two motor modules 12 on the left side and the right side of the wheelchair, the rear lower connecting rod 14 is connected with an electric push rod 19, one end of the electric push rod 19 is connected with the rear lower connecting rod 14, and the other end of the electric push rod is connected with a folding sheet metal component. Motor module 12 control electric putter 19 promotes folding panel beating subassembly 8, folding of connecting rod 7 and back connecting rod 13 before folding panel beating subassembly 8 drives to realize the automatic function of folding and opening of a key of wheelchair, it is very convenient to use, and the wheelchair portable that folds up has improved the experience of transportation and carrying.

Specifically, as shown in fig. 6 and 7, the folding sheet metal component 8 includes a front sheet metal part 81 hinged to the front connecting rod 7, a rear sheet metal part 82 hinged to the rear connecting rod 13 and the front sheet metal part 81, a link block 84 connecting the rear sheet metal part 82 and the electric push rod 19, a cam block 83 provided on the rear sheet metal part 82, and a tension spring 85. The connecting rod block 84 is used for abutting against the rear sheet metal part 82 to limit the maximum rotation angle of the electric push rod 19, the cam block 83 is used for locking the connecting rod block 84, and the tension spring 85 is used for enabling the cam block 83 to automatically lock the connecting rod block 84. The front support arm 2, the front sheet metal part 81, the rear sheet metal part 82 and the rear support arm 11 form a quadrilateral support structure, when the wheelchair is unfolded, the connecting rod block 84 abuts against the rear sheet metal part 82, so that the maximum rotation angle of the electric push rod 19 is limited, the cam block 83 abuts against and is fixed with the rear sheet metal part 82, the connecting rod block 84 is locked by a hook on the cam block 83, the connecting rod block 84 is hinged with the connecting head end of the electric push rod 19, the other end of the electric push rod 19 is hinged with the rear lower connecting rod 14, and therefore the electric push rod is output to the electric push rod 19 through the motor module 12, and the quadrilateral support structure can be driven to achieve the electric folding and unfolding functions. Further, the user manually pulls up the cam block 83 to release the unlocking link block 84, thereby realizing the function of manually folding the wheelchair. When a user manually unfolds the wheelchair, the connecting rod block 84 abuts against the rear sheet metal part 82, the cam block 83 automatically locks the connecting rod block 84 under the action of the tension spring 85, the function of manually unfolding the wheelchair is achieved, the normal folding and unfolding functions of the wheelchair can be guaranteed when the wheelchair is powered off, and the wheelchair is convenient and flexible to use.

As shown in fig. 5, in the present embodiment, the front wheel assembly 6 includes a front fork 62 for connecting the front wheel, a front fork turning block 61 hinged to the front fork 62, a spring 63 provided between the front fork turning block 61 and the front fork 62, and a front fork shaft 64 provided on the front fork turning block 61 and passing through the spring 63. The end surface hole of the front fork 62 is in large clearance movable fit with the front fork shaft 64, the front fork rotating block 61 is connected with the front fork shaft 64 in a flat position, and the spring 63 is positioned between the front fork rotating block 61 and the front fork 62.

In this embodiment, the seat frame 1 is provided with a battery housing 20, a male terminal connector and a guide rail are arranged in the battery housing 20, the battery pack 15 is provided with a female terminal connector and a guide groove, the battery pack 15 is installed in the battery housing 20 in a push-pull mode through the cooperation of the guide rail and the guide groove, and the female terminal connector output by the battery pack 15 is butted with the male terminal connector of the battery housing 20 to realize the connection of a circuit. The battery pack 15 is provided with a buckle, and when the battery pack 15 is installed in place, the buckle of the battery pack 15 is bounced to lock the battery pack 15 on the seat frame 1. After the electric wheelchair is installed, the electric wheelchair can be started through a switch key arranged on the operating handle 10, and then current can be output for the electric wheelchair. In addition, in this embodiment, battery package 15 quantity is two, and battery package 15 can all be installed to the bottom left and right sides of seat frame 1, has alleviated and has had the inconvenient hidden danger of going on a journey when the battery electric quantity of going out is not enough at present, and the user can only select to install a battery package 15 in order to reduce weight simultaneously, has improved the flexibility of using.

As shown in fig. 1 and 3, the back bar 3 is provided with a back handle 4, and the back handle 4 is provided with a power-assisted function button 21 electrically connected with the motor module 12. When a user pushes the wheelchair from the back, the power-assisted function button 21 can be pressed down, the motor module 12 is started to work, the power-assisted pushing function is realized, the user can save labor when pushing the wheelchair, and the use experience is further optimized.

Preferably, the front connecting rod 7 is provided with a flat position, the two front supporting arms 2 are provided with flat position holes matched with the flat position, and the front connecting rod 7 is arranged between the two front supporting arms 2 through the flat position holes.

The seat frame 1 is provided with a seat cushion 17 and a back cushion 18 for a user to lean against, and the back cushion 18 is connected to the back rod 3 through screws. In this embodiment, the back cushion 18 is made of hard plastic, and has a net structure inside, so as to enhance air permeability and make the use more comfortable.

The working principle of the utility model is as follows: the seat frame 1 is provided with a front support arm 2 and a rear support arm 11 on both sides. The rear supporting arm 11 is connected with a motor module 12, and an output shaft of the motor module 12 is fixedly connected with a rear wheel assembly. Back of the body pole 3 behind the both sides of the rear end of seat frame 1 set up, set up hinge bar 5 on the back of the body pole 3, back of the body pole 3 is connected to hinge bar 5's one end, and the other end is articulated with preceding support arm 2. Be provided with preceding connecting rod 7 between the preceding supporting arm 2 of both sides, be provided with back connecting rod 13 behind the supporting arm 11 of both sides between, be connected with folding panel beating subassembly 8 between preceding connecting rod 7 and the back connecting rod 13. The rear lower connecting rod 14 is connected between the two motor modules 12 on the left side and the right side of the wheelchair, the rear lower connecting rod 14 is connected with the electric push rod 19, one end of the electric push rod 19 is connected with the rear lower connecting rod 14, and the other end of the electric push rod is connected with the folding sheet metal component. Motor module 12 control electric putter 19 promotes folding panel beating subassembly 8, folding of connecting rod 7 and back connecting rod 13 before folding panel beating subassembly 8 drives to realize the automatic function of folding and opening of a key of wheelchair, it is very convenient to use, and the wheelchair portable that folds up has improved the experience of transportation and carrying.

Above, the technical solutions of the present invention are only used for illustration and not for limitation, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A novel folding electric wheelchair is characterized by comprising:

a seat frame (1);

the front support arms (2) are arranged on two sides of the seat frame (1), and front wheel assemblies (6) are arranged at the bottoms of the front support arms (2);

the rear supporting arms (11) are arranged on two sides of the seat frame (1), the rear supporting arms (11) are connected with a motor module (12), and an output shaft of the motor module (12) is fixedly connected with a rear wheel assembly;

a back rod (3) arranged at two sides of the back end of the seat frame (1);

the hinge rod (5) is arranged on the back rod (3), and the other end of the hinge rod (5) is hinged with the front support arm (2);

the armrest component (9) is arranged on the front supporting arm (2), the armrest component (9) is connected with the rear supporting arm (11), and an operating handle (10) is arranged on the armrest component (9); and

the battery pack (15) and the controller (16) are arranged on the seat frame (1), and the battery pack (15) and the controller (16) are electrically connected with the operating handle (10);

a front connecting rod (7) is arranged between the two front supporting arms (2), a rear connecting rod (13) is arranged between the two rear supporting arms (11), and a folding sheet metal component (8) is connected between the front connecting rod (7) and the rear connecting rod (13); control two be equipped with back lower connecting rod (14) between motor module (12), back lower connecting rod (14) is connected with electric putter (19), the other end of electric putter (19) is connected folding panel beating subassembly (8).

2. The new folding electric wheelchair as claimed in claim 1, characterized in that said folding sheet metal assembly (8) comprises:

a front sheet metal part (81) connected with the front connecting rod (7);

a rear sheet metal part (82) connected with the rear connecting rod (13) and the front sheet metal part (81);

a connecting rod block (84) connecting the rear sheet metal part (82) and the electric push rod (19);

the cam block (83) is arranged on the rear sheet metal part (82) and used for locking the connecting rod block (84); and

the tension spring (85) is arranged on the cam block (83) and used for enabling the cam block (83) to automatically lock the connecting rod block (84);

the connecting rod block (84) is used for abutting against the rear sheet metal part (82) so as to limit the maximum rotating angle of the electric push rod (19).

3. The folding electric wheelchair as claimed in claim 1, characterised in that the battery pack (15) is provided with a snap for positive locking of the battery pack (15) in the seat frame (1).

4. The folding electric wheelchair as claimed in claim 1, characterized in that the seat frame (1) is provided with a battery housing (20), a male connector and a guide rail are arranged in the battery housing (20), and the battery pack (15) is provided with a female connector and a guide groove matched with the guide rail.

5. The new folding electric wheelchair in accordance with claim 1, characterised in that the number of battery packs (15) is two.

6. The folding electric wheelchair as claimed in claim 1, characterized in that the back bar (3) is provided with a back push handle (4), and the back push handle (4) is provided with a power-assisted function button (21) electrically connected with the motor module (12).

7. The new folding electric wheelchair as claimed in claim 1, characterized in that the front connecting rod (7) is provided with a flat position and the front supporting arm (2) is provided with a flat position hole cooperating with the flat position.

8. The folding electric wheelchair as claimed in claim 1, characterized in that the seat frame (1) is provided with a cushion (17) and a back pad (18), the back pad (18) being connected to the back bar (3) by screws.

9. The new folding electric wheelchair as claimed in claim 8, characterized in that the back cushion (18) is made of hard plastic.