CN218684982U

CN218684982U - Electric wheelchair

Info

Publication number: CN218684982U
Application number: CN202221243294.7U
Authority: CN
Inventors: 沈文华
Original assignee: Kunshan Aoshida Electric Technology Co ltd
Current assignee: Kunshan Aoshida Electric Technology Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2023-03-24
Anticipated expiration: 2032-05-23

Abstract

The utility model provides an electronic wheelchair car, it includes: a vehicle body and a vehicle base; the vehicle body includes: the automobile body frame and the automobile cushion arranged on the automobile body frame; the car base includes: the device comprises an underframe, wheels and a lifting mechanism; the wheels are arranged on the underframe; the lifting mechanism comprises: the outer shell is installed on the bottom frame, the inner shell is contained in the outer shell, the lifting power unit is installed in the outer shell and can drive the inner shell to stretch out of the outer shell, the central shaft assembly is installed in the inner shell and moves synchronously along with the inner shell, and the stretching end of the central shaft assembly is detachably connected with the bottom of the car mat. The utility model discloses an electronic wheelchair is through using electric putter to drive in, shell body and 4 four link structure's chassis to realize that the seat height is adjusted and the function that packs up is opened to the universal wheel, compares current electronic wheelchair and not only has seat raising and lowering functions, two parts dismantlement back handy advantage about in addition.

Description

Electric wheelchair

Technical Field

The utility model relates to an electronic wheelchair technical field especially relates to an electronic wheelchair car of over-and-under type.

Background

The electric wheelchair is a new-generation intelligent wheelchair which is formed by superposing a high-performance power driving device, an intelligent operating device, a battery and the like on the basis of a traditional manual wheelchair and is provided with multiple functions of advancing, retreating, steering, standing, lying and the like. Although the existing electric wheelchair is flexible in steering and comfortable to sit, the height of the seat is generally fixed, and a user cannot sit on the wheelchair to take articles on a high shelf. Therefore, it is necessary to provide a further solution to the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic wheelchair to overcome the not enough that exists among the prior art.

In order to achieve the above object, the present invention provides an electric wheelchair, which includes: a vehicle body and a vehicle base;

the vehicle body includes: the automobile body comprises an automobile body frame and an automobile cushion arranged on the automobile body frame;

the car base includes: the device comprises an underframe, wheels and a lifting mechanism;

the wheels are mounted on the underframe; the lifting mechanism comprises: the outer shell is installed on the chassis, the inner shell is contained in the outer shell, the lifting power unit is installed in the outer shell and can drive the inner shell to stretch out of the outer shell, the central shaft assembly is installed in the inner shell and moves synchronously along with the inner shell, and the stretching end of the central shaft assembly is detachably connected with the bottom of the car mat.

As an improvement of the electric wheelchair of the present invention, the pad includes: a seat cushion and a backrest; the vehicle body frame includes: a seat frame, a back frame, a pedal and a handrail;

the back frame is connected to the seat frame, the seat cushion is fixed to the seat frame, the backrest is fixed to the back frame, the pedals are connected to the seat frame through pedal supports, and the armrests are located on two sides of the seat cushion and connected to the seat frame.

As an improvement of the electric wheelchair of the present invention, the back frame, the seat frame, the pedal support and the armrest are connected to each other by a movable connection, and the seat frame and the pedal support are connected to each other by a connecting rod by a movable connection.

As the utility model discloses electric wheelchair's improvement, the lift power pack is electric putter, interior casing suit in electric putter is last to be connected rather than the transmission, and can drive interior casing certainly the open-top of shell body stretches out.

As an improvement of the electric wheelchair of the present invention, the outer case includes: preceding shell body and rather than assembled joint's back shell body, electric putter install in preceding shell body encloses into the both sides in space with the back shell body, interior casing includes: the front inner shell and the rear inner shell assembled and connected with the front inner shell.

As an improvement of the electric wheelchair of the present invention, the center shaft assembly includes: the center shaft, the center sleeve and the center sliding seat;

the central sleeve is fixed in the inner shell, the central shaft is coaxially arranged in the central sleeve, the central sliding seat is sleeved on the central sleeve, a window exposing the central sliding seat is formed in the inner shell, and the underframe is connected with the central sliding seat and the outer shell.

As an improvement of the electric wheelchair of the present invention, the chassis includes: the front wheels of the wheels are connected with the central sliding seat through the front wheel frames, and the rear wheels of the wheels are connected with the central sliding seat through the rear wheel frames.

As the improvement of the electric wheelchair of the present invention, the front wheel frame and the rear wheel frame all include: the device comprises a stay bar, a rocker arm, a link bar and a wheel seat;

the rocker arm is a bent arm bent downwards, one end of the rocker arm is movably connected with the wheel seat, the other end of the rocker arm is movably connected with the lower part of the outer shell, one end of the support rod is movably connected with the wheel seat through the link rod, and the other end of the support rod is movably connected with the sliding seat.

As an improvement of the electric wheelchair of the present invention, the center shaft assembly further comprises: an upper spring and a lower spring;

the upper spring, the central sliding seat and the lower spring are sleeved on the central sleeve and sequentially arranged from top to bottom, the upper spring is located between the central sliding seat and the top surface of the window, and the lower spring is located between the central sliding seat and the bottom surface of the window.

As an improvement of the electric wheelchair of the present invention, the wheel includes: front wheels, drive wheels, and rear wheels;

the driving wheels are arranged on the left side and the right side of the lifting mechanism and are respectively driven by respective motors; the front wheel is positioned in front of the driving wheel and is connected with the central sliding seat through a front wheel frame in the bottom frame, and the rear wheel is positioned behind the driving wheel and is connected with the central sliding seat through a rear wheel frame in the bottom frame.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an electronic wheelchair car realizes the function that the seat height was adjusted and the universal wheel is opened and is packed up through the chassis that uses electric putter to drive interior, shell body and 4 four-bar linkage structures, compares current electronic wheelchair and not only has seat raising and lowering functions, two parts dismantles portable advantage in back about in addition. And simultaneously, the utility model discloses an electronic wheelchair has front wheel, drive wheel and rear wheel, and wherein front wheel and rear wheel can play good balance and supporting role, and then have ensured the utility model discloses electronic wheelchair has better security.

Drawings

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

Fig. 1 is a schematic perspective view of an embodiment of the electric wheelchair of the present invention;

FIG. 2 is an exploded perspective view of the electric wheelchair shown in FIG. 1;

FIG. 3 is a schematic illustration of the vehicle body of FIG. 1 in a folded condition;

fig. 4 is a schematic view of the vehicle base of fig. 1 in a folded state.

Detailed Description

The present invention will be described in detail with reference to various embodiments, but it should be understood that these embodiments are not intended to limit the present invention, and that the functional, method, or structural equivalent changes or substitutions made by those skilled in the art according to these embodiments are all within the scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides an electric wheelchair including: a vehicle body 10 and a vehicle chassis 20. The vehicle body 10 is detachably mounted on the base, so that the vehicle body and the vehicle base are convenient to disassemble and fold, and the vehicle has the advantage of being portable after being disassembled.

In one embodiment, a pivotable buckle 11 may be provided between the vehicle body 10 and the vehicle bottom seat 20, and when the buckle 11 is engaged with the vehicle body 10, the vehicle body 10 and the vehicle bottom seat 20 are in a combined state; when the buckle is pivoted to separate from the vehicle body 10, the vehicle body 10 and the vehicle base 20 are in a disassembled state, and the two can be folded and stored respectively.

As shown in fig. 2, the vehicle body 10 includes: a vehicle body frame 12, and a vehicle pad 13 mounted on the vehicle body frame 12.

Wherein, the car mat 13 includes: a seat cushion 131 and a backrest 132. The vehicle body frame 12 includes: a seat frame 121, a back frame 122, footrests 123, and armrests 124. At this time, the back frame 122 is coupled to the seat frame 121, the seat cushion 131 is fixed to the seat frame 121, the backrest 132 is fixed to the back frame 122, the pedals 123 are bracket-coupled to the seat frame 121 through the pedals 123, and the armrests 124 are positioned at both sides of the seat cushion and coupled to the seat frame 121. And the armrest 124 is also provided with a control rocker.

Referring to fig. 3, in order to fold the body 10 after being disassembled, the back frame 122, the seat frame 121, the pedal 123 support and the armrest 124 are movably connected. In one embodiment, the movable connection may be a hinge connection. Meanwhile, in order to improve the stability when the seat frame 121 and the foothold 123 are pivotally folded, a connecting rod 124 is movably connected between the seat frame 121 and the foothold 123.

As shown again in fig. 2, the vehicle chassis 20 includes: chassis 21, wheels 22, and lifting mechanism 23.

Wherein the wheel 22 is mounted on the chassis 21. Specifically, the wheel 22 includes: front wheels 221, drive wheels 222, and rear wheels 223. At this time, the driving wheels 222 are attached to the left and right sides of the elevating mechanism and are driven by the respective motors 2221. Correspondingly, a battery 24 for supplying power to the motor 2221 is also arranged in the vehicle bottom seat 20. A fender 2222 is further provided above the drive wheel 222, and a front headlight 2223, a rear headlight 2224, and a turn signal 2225 are further provided on the front wall of the fender 2222.

The front wheel 221 is located in front of the driving wheel 222 and is connected to the center slide by the front wheel frame 211 in the chassis 21, and the rear wheel 223 is located behind the driving wheel 222 and is connected to the center slide by the rear wheel frame 212 in the chassis 21. In one embodiment, front wheel 221 and rear wheel 223 are universal wheels that are coupled to chassis 21 by respective front and rear forks 224.

The lifting mechanism 23 is used for realizing the height adjustment of the seat, and comprises: an outer housing 231, an inner housing 232, a central shaft assembly 233, and a lift power unit 234.

Wherein, the outer shell 231 is installed on the underframe 21, the inner shell 232 is accommodated in the outer shell 231, the lifting power unit 234 is installed in the outer shell 231 and can drive the inner shell 232 to extend out from the outer shell 231, the central shaft component 233 is installed in the inner shell 232 and moves synchronously with the inner shell 232, and the extending end of the central shaft component 233 is detachably connected with the bottom of the vehicle cushion 13. Thus, when the lifting power unit 234 is operated, the inner housing 232 can be driven to move up and down, and the height of the vehicle body 10 connected thereto can be adjusted.

The elevating power unit 234 may employ an electric push rod. At this time, the inner housing 232 is sleeved on the electric push rod, is in transmission connection with the electric push rod, and can drive the inner housing 232 to extend out of the top opening of the outer housing 231. Therefore, when the electric push rod works, the inner shell 232 in transmission connection with the electric push rod can be ejected out, and the height of the vehicle body 10 is further increased.

In order to facilitate the assembly of the electric putter and the inner and outer cases 231, the outer case 231 includes: the preceding shell body and rather than the back shell body of assembled joint. At this time, the electric push rods are arranged on two sides of a space enclosed by the front outer shell and the rear outer shell. The inner housing 232 includes: the front inner shell and the rear inner shell assembled and connected with the front inner shell. In one embodiment, the front outer shell and the rear outer shell, and the front inner shell and the rear inner shell can be assembled and connected through screws.

As described above, the outer case 231 is mounted on the chassis 21. At this time, the central shaft 2331 assembly 233 includes: a central shaft 2331, a central hub 2332, and a central slide 2333. The center bush 2332 is fixed in the inner housing 232, the center shaft 2331 is coaxially installed in the center bush 2332, the center slider 2333 is installed on the center bush 2332, a window exposing the center slider 2333 is opened on the inner housing 232, and the bottom frame 21 is connected to the center slider 2333 and the outer housing 231. Thus, the center shaft 2331 assembly 233 integrally connects the vehicle body 10 and the underframe 21.

In addition, in order to improve the buffering performance of the electric wheelchair of the present embodiment, the center shaft 2331 assembly 233 further includes: an upper spring 2334 and a lower spring 2335. The upper spring 2334, the central sliding seat 2333 and the lower spring 2335 are sleeved on the central sleeve 2332 and are sequentially arranged from top to bottom, the upper spring 2334 is positioned between the central sliding seat 2333 and the top surface of the window, and the lower spring 2335 is positioned between the central sliding seat 2333 and the bottom surface of the window. Thus, the upper spring 2334 and the lower spring 2335 absorb the force acting between the vehicle body 10 and the underframe 21 in a cushioning manner, thereby improving the riding comfort of the electric wheelchair.

The chassis 21 includes: a front wheel frame 211 and a rear wheel frame 212. Wherein the front wheel 221 is connected to the center slide 2333 through the front wheel frame 211, and the rear wheel 223 is connected to the center slide 2333 through the rear wheel frame 212. Accordingly, the central slider 2333 is provided with connecting tabs for connecting the front wheel frame 211 and the rear wheel frame 212.

Specifically, the front wheel frame 211 and the rear wheel frame 212 adopt the same structural design, and both of them include: a strut 2111, a rocker 2112, a link 2113, and a wheel seat 2114. Referring to fig. 4, in order to fold the base after being detached, the rocker arm 2112 is a bent arm bending downward, one end of which is movably connected to the wheel seat 2114, and the other end of which is movably connected to the lower portion of the outer housing 231, and one end of the brace 2111 is movably connected to the wheel seat 2114 through the link 2113, and the other end is movably connected to the slide. In one embodiment, the movable connection may be a hinge connection.

To sum up, the utility model discloses an electronic wheelchair realizes that the seat height is adjusted and the universal wheel is opened the function of packing up through the chassis that uses electric putter to drive inside and outside shell body and 4 four-bar linkage structures, compares current electronic wheelchair and not only has the seat raising and lowering functions, two parts dismantles portable advantage in back about in addition. And simultaneously, the utility model discloses an electronic wheelchair has front wheel, drive wheel and rear wheel, and wherein front wheel and rear wheel can play good balance and supporting role, and then have ensured the utility model discloses electronic wheelchair has better security.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An electric wheelchair, comprising: a vehicle body and a vehicle base;

the vehicle body includes: the vehicle cushion comprises a vehicle body frame and a vehicle cushion arranged on the vehicle body frame;

2. The electric wheelchair as claimed in claim 1, wherein the pad comprises: a seat cushion and a backrest; the vehicle body frame includes: a seat frame, a back frame, a pedal and a handrail;

the back frame is connected to the seat frame, the seat cushion is fixed to the seat frame, the backrest is fixed to the back frame, the pedals are connected to the seat frame through pedal supports, and the handrails are located on two sides of the seat cushion and connected to the seat frame.

3. The electric wheelchair as claimed in claim 2, wherein the back frame, the seat frame, the pedal support and the armrest are movably connected to each other, and a connecting rod is movably connected between the seat frame and the pedal.

4. The electric wheelchair as claimed in claim 1, wherein the lifting power unit is an electric push rod, and the inner housing is sleeved on the electric push rod, is in transmission connection with the electric push rod, and can drive the inner housing to extend out of the top opening of the outer housing.

5. The electric wheelchair as claimed in claim 4, wherein the outer case comprises: preceding shell body and rather than assembled joint's back shell body, electric putter install in preceding shell body encloses into the both sides in space with the back shell body, interior casing includes: the front inner shell and the rear inner shell assembled and connected with the front inner shell.

6. The electric wheelchair as claimed in any one of claims 1, 4 and 5, wherein the center shaft assembly comprises: the center shaft, the center sleeve and the center sliding seat;

7. The electric wheelchair as claimed in claim 6, wherein the under frame comprises: the front wheels of the wheels are connected with the central sliding seat through the front wheel frames, and the rear wheels of the wheels are connected with the central sliding seat through the rear wheel frames.

8. The electric wheelchair as claimed in claim 7, wherein the front and rear wheel frames each comprise: the device comprises a stay bar, a rocker arm, a link bar and a wheel seat;

the rocker arm is a bent arm bent downwards, one end of the rocker arm is movably connected with the wheel seat, the other end of the rocker arm is movably connected with the lower part of the outer shell, one end of the stay bar is movably connected with the wheel seat through the link rod, and the other end of the stay bar is movably connected with the sliding seat.

9. The electric wheelchair as claimed in any one of claims 6, 7 and 8, wherein the center shaft assembly further comprises: an upper spring and a lower spring;

10. The electric wheelchair as claimed in claim 6, wherein the wheels comprise: front wheels, drive wheels, and rear wheels;

the driving wheels are arranged on the left side and the right side of the lifting mechanism and are respectively driven by respective motors; the front wheel is positioned in front of the driving wheel and is connected with the central sliding seat through a front wheel frame in the underframe, and the rear wheel is positioned behind the driving wheel and is connected with the central sliding seat through a rear wheel frame in the underframe.