CN214157732U

CN214157732U - Constant-speed cruising electric wheelchair

Info

Publication number: CN214157732U
Application number: CN202022652539.9U
Authority: CN
Inventors: 张国志
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-09-10
Anticipated expiration: 2030-11-16

Abstract

The utility model relates to a constant-speed cruising electric wheelchair, which comprises a bracket and a seat; the seat is fixedly arranged on the bracket, the lower part of the bracket is provided with a pair of front wheels and a pair of rear wheels, the seat also comprises a controller and a battery, and the controller is electrically connected with the battery; the front wheel is provided with a steering motor with a controlled end connected with the controller, and the rear wheel is provided with a driving motor with a controlled end connected with the controller; the driving motor is a motor with an encoder, and the signal output end of the encoder is connected with the signal input end of the controller; the seat is provided with a pair of armrests, the armrests are provided with an operation panel electrically connected with the controller, and the operation panel is provided with a rocker; the handrail is also provided with a display screen in front of the operation panel, and the display screen is electrically connected with the controller. The utility model discloses can the person of facilitating the use realize when needs that the constant speed cruises, avoid leading to personnel fatigue because of keeping promoting the rocker.

Description

Constant-speed cruising electric wheelchair

Technical Field

The utility model relates to an electronic wheelchair that cruise at constant speed belongs to wheelchair technical field.

Background

As known to the inventor, the conventional electric wheelchair requires a user to operate a rocker to perform a movement such as forward movement and steering, but when the road condition is good, the user is required to keep the movement of pushing the rocker in order to keep the electric wheelchair moving forward, which is likely to cause fatigue. The electric wheelchair capable of realizing the constant-speed cruising function is urgently needed to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at: to the problems in the prior art, the constant-speed cruising electric wheelchair is provided, so that a user can conveniently realize constant-speed cruising when needed, and the fatigue of personnel caused by keeping a pushing rocker is avoided.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a constant-speed cruising electric wheelchair comprises a bracket and a seat; the seat is fixedly arranged on the support, and the lower part of the support is provided with a pair of front wheels and a pair of rear wheels; the front wheels are provided with steering motors with controlled ends connected with the controller, and the rear wheels are provided with driving motors with controlled ends connected with the controller; the driving motor is a motor with an encoder, and a signal output end of the encoder is connected with a signal input end of the controller; the seat is provided with a pair of armrests, the armrests are provided with operation panels electrically connected with the controller, and the operation panels are provided with rocking bars; the handrail is also provided with a display screen in front of the operation panel, and the display screen is electrically connected with the controller.

In the structure, under the coordination of the controller and the encoder, the constant-speed cruising of the electric wheelchair can be realized, for example, after the rocker is pushed to the front for a preset time, the controller controls the driving motor to enable the wheelchair to advance at a preset speed until the preset time is reached or until the rocker is further moved. Therefore, the user can conveniently realize constant-speed cruising when needed, and the fatigue of personnel caused by keeping pushing the rocker is avoided.

The utility model discloses can also adopt following preferred scheme:

preferably, the electric wheelchair is also provided with a brake; the brake comprises a brake knob, a brake cable and a brake; the brake handle knob is arranged below the armrest and is in transmission connection with the brake through a brake cable; the brake comprises a push rod and a friction plate, one end of the push rod is fixedly connected with a brake cable, and the other end of the push rod is fixedly connected with the friction plate; the friction plate is opposite to the tire tread of the rear wheel.

More preferably, the armrest is provided with a hook, the brake knob has a braking movement direction and a swinging movement direction, and the braking movement direction is perpendicular to the swinging movement direction; the brake knob is provided with a releasing position and a braking position; the brake handle knob moves to a brake position along the brake movement direction and then moves to the inside of the clamping hook along the swing movement direction to form a limited brake holding state.

More preferably, the brake knob is provided with a limiting notch matched with the clamping hook, and when the brake knob is in a brake holding state, the limiting notch is clamped with the clamping hook.

The applicant discovers in the development process that if the existing electric wheelchair is modified on the basis of the technical scheme of the utility model, the electric wheelchair can not be braked when the power is lost, and the electric wheelchair can slide on the slope ground under the condition, so that the safety is not guaranteed. After the preferred scheme is adopted, a manual brake function and a manual parking function can be further added to the electric wheelchair, so that the electric wheelchair can be manually braked when needed, and can also be manually parked to prevent the electric wheelchair from sliding when needed, and therefore safety is guaranteed.

More preferably, the bracket is provided with a mounting plate, the middle part of the push rod is hinged with the mounting plate, and a torsional spring is arranged at the hinged part; the brake cable is provided with a line pipe, and the bracket is provided with a group of line binding clips for fixing the line pipe; one end of the wire tube is close to the push rod, and the other end of the wire tube is close to the brake knob; one end of the line pipe is fixed on the bracket and is positioned at one side of the push rod; the friction plate is positioned on the other side of the push rod; the push rod is provided with a releasing position and a braking position;

when the push rod is in a braking position under the traction of the brake cable, the friction plate is attached to the tire tread of the rear wheel, and the torsion spring is in a tensioning state; when the push rod is in a release position under the action of the torsion spring, the friction plate is separated from the tire tread of the rear wheel.

More preferably, the brake knob is provided with one brake, and the brake of the brake is provided with two pairs; the brake cable is provided with two channels which are in one-to-one correspondence with the brake knobs, and the brake cables are fixedly connected with the brake knobs respectively.

After the preferred scheme is adopted, the specific structure of the brake can be further optimized.

Preferably, the number of the driving motors is two, and the driving motors correspond to the rear wheels one by one; the driving motors are respectively positioned at one side of the corresponding rear wheel close to the other rear wheel; and a housing is arranged on the outer side of the driving motor.

More preferably, the encoder is located on a side of the drive motor facing away from the corresponding rear wheel; the encoder is located within the housing.

More preferably, the driving motor has a manual-electric brake switch lever.

After the preferred scheme is adopted, the specific details of the driving motor can be further optimized.

Preferably, the seat is provided with a harness.

After the preferred scheme is adopted, the safety of the user can be further improved.

Compared with the prior art, the utility model discloses can the person of facilitating the use realize the constant speed when needs and cruise, avoid leading to personnel fatigue because of keeping promoting the rocker.

Drawings

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

Fig. 1 is a schematic view of a left side view of embodiment 1 of the present invention. The components on the right side of the wheelchair are not shown.

Fig. 2 is a right side view schematic diagram of embodiment 1 of the present invention. The components on the left side of the wheelchair are not shown.

Fig. 3 is a schematic view of a top view of the operation panel and the display screen according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of a brake at the armrest according to embodiment 1 of the present invention.

Fig. 5 is a schematic view of a brake at a rear wheel according to embodiment 1 of the present invention.

Fig. 6 is a schematic view of a driving motor and an encoder at a rear wheel of embodiment 1 of the present invention.

Fig. 7 is an electrical connection diagram according to embodiment 1 of the present invention.

Detailed Description

Example 1

As shown in fig. 1 to 7, the constant-speed-cruise electric wheelchair of the embodiment includes a bracket 01 and a seat 02; the seat 02 is fixedly arranged on a support 01, a pair of front wheels 03 and a pair of rear wheels 04 are arranged at the lower part of the support 01, the seat further comprises a controller 05 and a battery 06, and the controller 05 is electrically connected with the battery 06; the front wheel 03 is provided with a steering motor with a controlled end connected with the controller 05, and the rear wheel 04 is provided with a driving motor 07 with a controlled end connected with the controller 05; the driving motor 07 is a motor with an encoder 08, and a signal output end of the encoder 08 is connected with a signal input end of the controller 05; the seat 02 has a pair of armrests 09, the armrests 09 are provided with an operation panel 10 electrically connected with the controller 05, and the operation panel 10 has a rocker 11; the armrest 09 is further provided with a display 12 in front of the operation panel 10, and the display 12 is electrically connected to the controller 05.

Specifically, as shown in fig. 4 and 5, the electric wheelchair is further provided with a brake; the brake comprises a brake knob 13, a brake cable 14 and a brake 15; the brake knob 13 is arranged below the handrail 09, and the brake knob 13 is in transmission connection with the brake 15 through the brake cable 14; the brake 15 comprises a push rod 16 and a friction plate 17, one end of the push rod 16 is fixedly connected with the brake cable 14, and the other end of the push rod 16 is fixedly connected with the friction plate 17; the friction plate 17 faces the tread of the rear wheel 04.

The armrest 09 is provided with a hook 18, the brake knob 13 has a braking movement direction and a swinging movement direction, and the braking movement direction is perpendicular to the swinging movement direction (that is, when the vertical direction is taken as the braking movement direction, the brake knob can swing with a certain margin in the transverse direction, which can be achieved by the prior art); the brake knob 13 has a release position and a braking position; the brake handle 13 has a brake holding state that moves to the braking position along the braking movement direction and then moves to the inside of the hook 18 along the swinging movement direction to form a limit position.

The brake knob 13 is provided with a limit notch 19 matched with the clamping hook 18, and when the brake knob 13 is in a brake holding state, the limit notch 19 is clamped with the clamping hook 18.

Specifically, the bracket 01 is provided with a mounting plate 20, the middle part of the push rod 16 is hinged with the mounting plate 20, and a torsion spring (not shown in the figure) is arranged at the hinged part; the brake cable 14 is provided with a line pipe 21, and the bracket 01 is provided with a group of line binding clips for fixing the line pipe 21; one end of the spool 21 is close to the push rod 16, and the other end thereof is close to the brake knob 13; one end of the line pipe 21 is fixed on the bracket 01 and is positioned at one side of the push rod 16; the friction plate 17 is positioned at the other side of the push rod 16; the push rod 16 has a release position and a braking position; when the push rod 16 is in a braking position under the traction of the brake cable 14, the friction plate 17 is attached to the tire tread of the rear wheel 04, and the torsion spring is in a tensioning state; when the push rod 16 is in the release position under the action of the torsion spring, the friction plate 17 is disengaged from the tread of the rear wheel 04.

One brake knob 13 is provided, and two pairs of brake brakes 15 are provided; the brake brakes 15 correspond to the rear wheels 04 one by one, the brake cables 14 are provided with two channels and correspond to the brake brakes 15 one by one, and the brake cables 14 are fixedly connected with the brake knobs 13 respectively.

Specifically, two driving motors 07 are provided, and correspond to the rear wheels 04 one by one; as shown in fig. 6, the drive motors 07 are respectively located on the sides of the corresponding rear wheels 04 near the other rear wheel 04; a cover 22 is arranged outside the driving motor 07. The encoder 08 is positioned on the side of the drive motor 07 facing away from the corresponding rear wheel 04; an encoder 08 is located within the housing 22. The driving motor 07 may have a manual-electric brake switching lever 23 for switching whether or not to use the electric brake function of the driving motor 07 itself, according to actual requirements.

Further, the seat 02 is provided with a safety belt (not shown in the figure).

An example of use of this embodiment is as follows:

(1) constant speed cruise function: after the rocker 11 is pushed forward for a predetermined time, the controller 05 controls the driving motor 07 to make the wheelchair advance at a predetermined speed until the predetermined time is reached or until the rocker 11 moves further; the user can know the current speed of the wheel 03 through the display screen 12. When the wheelchair goes up and down a slope, the controller 05 increases or decreases the power of the motor according to the signal data of the encoder 08, so that the wheelchair can run at a preset speed without slowing down the wheelchair up the slope and speeding up the wheelchair down the slope.

(2) The manual brake function: in a suitable scene, such as failure of the electric brake, or emergency brake, which is needed but is not too long to be operated through the operation panel 10, the brake knob 13 is pinched to decelerate through friction, thereby improving safety.

(3) Manual parking function: in a suitable scene, if the electric wheelchair is parked on the ground with a slope, the brake knob 13 is pinched and swings to the clamping hook 18, the limiting notch 19 of the brake knob is clamped with the clamping hook 18, so that the rear wheel 04 is braked, the parking function is realized, the vehicle sliding is prevented, and the safety is improved.

The electric components of the present embodiment are each constituted by conventional electronic components. If the embodiment relates to the software control program in the implementation process, the related software control programs are mature prior art products, and meanwhile, the embodiment only relates to the use of the existing software control program and does not have the improvement on the software control program.

In addition, it should be noted that, if the present invention refers to "fixed connection" or "fixed connection", if there is no special description, it can select a suitable mode from the existing fixed connection modes in the prior art, such as fixed connection by a fastener, fixed connection by welding, fixed connection by integral molding by a mold, etc.; if the utility model discloses mention "the rotation is connected", if do not have the special explanation, can select suitable mode from the rotation connection modes such as the bearing rotation connection that has existed in the prior art, through the pivot rotation connection, through joint ball and ball seat rotation connection; these are all technical means that can be easily understood and easily implemented by those skilled in the art, and the detailed description of the specific structure of the present invention is not necessary to be specifically enumerated and illustrated in the drawings, so that there is no possibility that the contents described in the present invention may not constitute a complete technical solution.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. A constant-speed cruising electric wheelchair comprises a bracket and a seat; the seat is fixedly arranged on the support, and the lower part of the support is provided with a pair of front wheels and a pair of rear wheels; the front wheels are provided with steering motors with controlled ends connected with the controller, and the rear wheels are provided with driving motors with controlled ends connected with the controller; the driving motor is a motor with an encoder, and a signal output end of the encoder is connected with a signal input end of the controller; the seat is provided with a pair of armrests, the armrests are provided with operation panels electrically connected with the controller, and the operation panels are provided with rocking bars; the handrail is also provided with a display screen in front of the operation panel, and the display screen is electrically connected with the controller.

2. The electric wheelchair for cruising at constant speed according to claim 1, further comprising a brake; the brake comprises a brake knob, a brake cable and a brake; the brake handle knob is arranged below the armrest and is in transmission connection with the brake through a brake cable; the brake comprises a push rod and a friction plate, one end of the push rod is fixedly connected with a brake cable, and the other end of the push rod is fixedly connected with the friction plate; the friction plate is opposite to the tire tread of the rear wheel.

3. The electric wheelchair as claimed in claim 2, wherein the armrest is provided with a hook, the brake knob has a braking movement direction and a swinging movement direction, and the braking movement direction is perpendicular to the swinging movement direction; the brake knob is provided with a releasing position and a braking position; the brake handle knob moves to a brake position along the brake movement direction and then moves to the inside of the clamping hook along the swing movement direction to form a limited brake holding state.

4. The electric wheelchair for constant-speed cruising according to claim 3, wherein the brake knob has a limit notch matched with the hook, and the limit notch is clamped with the hook when the brake knob is in the brake holding state.

5. The electric wheelchair as claimed in claim 2, wherein the bracket is provided with a mounting plate, the middle part of the push rod is hinged with the mounting plate, and a torsion spring is arranged at the hinged part; the brake cable is provided with a line pipe, and the bracket is provided with a group of line binding clips for fixing the line pipe; one end of the wire tube is close to the push rod, and the other end of the wire tube is close to the brake knob; one end of the line pipe is fixed on the bracket and is positioned at one side of the push rod; the friction plate is positioned on the other side of the push rod; the push rod is provided with a releasing position and a braking position;

6. The electric wheelchair as claimed in claim 5, wherein there is one brake knob and two pairs of brakes of the brake; the brake cable is provided with two channels which are in one-to-one correspondence with the brake knobs, and the brake cables are fixedly connected with the brake knobs respectively.

7. The electric wheelchair as claimed in any one of claims 1 to 6, wherein there are two drive motors corresponding to the rear wheels one by one; the driving motors are respectively positioned at one side of the corresponding rear wheel close to the other rear wheel; and a housing is arranged on the outer side of the driving motor.

8. The constant-speed-cruise electric wheelchair as claimed in claim 7, wherein the encoder is located on a side of the drive motor facing away from the corresponding rear wheel; the encoder is located within the housing.

9. The cruise control electric wheelchair as claimed in claim 7, wherein said drive motor has a manual-electric brake switch lever.

10. A cruise control electric wheelchair according to any one of claims 1 to 6, characterized in that the seat is provided with a safety belt.