CN218305364U

CN218305364U - Electric wheelchair with ladder climbing function

Info

Publication number: CN218305364U
Application number: CN202222382607.3U
Authority: CN
Inventors: 王万泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-01-17
Anticipated expiration: 2032-09-08

Abstract

The utility model discloses an electric wheelchair with ladder climbing function, which comprises a first electric rear axle connected to the front part of the wheelchair, a second electric rear axle connected to the middle part of the wheelchair, and a third electric rear axle at the rear part of the wheelchair, wherein the first electric rear axle is movably connected with the second electric rear axle, and the third electric rear axle is movably connected with the first electric rear axle, so that the electric rear axle and the third electric rear axle can move up and down; overall structure is simple, and the cost of manufacture is low, through the setting of three electronic rear axles of group for can be fine when the cat ladder with the ladder face contact atress of step, improved its stability.

Description

Electric wheelchair with ladder climbing function

Technical Field

The utility model relates to a technical field of wheelchair, concretely relates to wheelchair with cat ladder function.

Background

With the gradual improvement of scientific technology and living standard, the wheelchair can be used as a transportation tool for people who are inconvenient to move, and can also be used as a production tool for people who participate in social production activities.

The common wheelchair can only run on a flat road, which greatly hinders the use scene of the wheelchair and also hinders the running of the wheelchair in regions with complex terrains; the wheel chairs capable of climbing the ladder are proposed in the prior art, most wheel chairs adopt a crawler belt to climb the ladder, and the wheel chairs are difficult to assemble in the structural mode, high in manufacturing cost and unstable in use. Therefore, there is a need for a wheelchair with a ladder function and low cost.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a wheelchair with cat ladder function to reduce manufacturing cost, improve stability in use.

In order to achieve the above object, the utility model provides an electric wheelchair with cat ladder function, include: the electric rear axle comprises a first electric rear axle, a second electric rear axle and a third electric rear axle, wherein the middle part of the first electric rear axle is fixedly connected with a bridging block, one end of the bridging block freely extends out, and the freely extending end of the bridging block is connected with a movable connecting part; the middle part of the second electric rear axle is fixedly connected with a second connecting block, and the second connecting block is movably connected with the movable connecting part so that the second electric rear axle can move up and down; a seat support frame is further connected to the second electric rear axle, so that a seat can be connected through the seat support frame; the middle part of the third electric rear axle is movably connected with a third connecting block, and the third connecting block is movably connected with the movable connecting part;

the first electric rear axle is connected to the front end of the wheelchair, the second electric rear axle is arranged in the middle of the wheelchair, and the third electric rear axle is arranged at the rear end of the wheelchair.

According to the electric wheelchair, the first electric rear axle and the second electric rear axle are movably connected, so that the functions of driving and climbing the ladder can be realized by the up-and-down movement of the first electric rear axle and the second electric rear axle and the contact of the step surfaces when ascending. Therefore, compared with the ladder climbing device in the prior art, the technical scheme is simpler and more stable.

In the above mode, the third electric rear axle and the third connecting block are also movably connected, and the movable connection can be connected in a shaft sleeve mode, so that the third electric rear axle can be twisted left and right, and the force application point can be found through the twisting in complex terrains, so that the wheelchair can be driven to advance or retreat, and the applicability of the electric wheelchair is improved.

According to an aspect of the application, swing joint portion includes two U type links, and the open end fixed connection of U type link is on the bridging piece, an installation loose axle in the U type link to make second connecting block and third connecting block pass through the loose axle is connected on the bridging piece.

Above this kind of mode, the connection of link makes first electronic rear axle and the electronic rear axle of second can both pass through the loose axle and move about in vertical direction certain limit from top to bottom, and the link makes simple structure, and the cost of manufacture is low, and reliable and stable.

According to another aspect of the application, the second connecting block and the third connecting block are replaced by rear connecting blocks, a rotating shaft hole is formed in the middle of each rear connecting block, a rotating shaft is movably mounted in each rotating shaft hole, and the movable connecting portions are connected to the rotating shafts.

Above this kind of mode, just can realize the up-and-down mode of second electronic rear axle and third electronic rear axle through a rear portion connecting block, satisfied the problem of back two sets of electronic rear axle impetus when the cat ladder, and overall structure is simple, and is with low costs.

According to another aspect of the present application, a storage support frame is connected to the third electric rear axle.

Above this kind of mode, can set up group battery or small-size petrol generator in the storing carriage to promote electronic wheelchair's continuation of the journey mileage, promote its suitability, and can realize the counter weight of the electronic rear axle of third through setting up group battery or generator, stability when promoting its cat ladder.

According to one aspect of the application, a steering faucet is connected to the first electric rear axle, and a starting device and a control device are arranged on the steering faucet; the first electric rear axle, the second electric rear axle and the third electric rear axle comprise disc brake electric rear axles.

Through turning to the tap setting, make it can rotate the certain limit, turned angle is about 20, and can control the rotation and the brake of each group of electronic rear axle through controlling means, this makes can realize holistic turning to through the wheel braking of controlling three group electronic rear axles one side simultaneously when rotating, the opposite side drive and the rotation of cooperation small angle.

According to another aspect of the present application, a foot pedal is coupled to the first electric rear axle.

The utility model discloses following beneficial effect has at least: overall structure is simple, and the cost of manufacture is low, through the setting of three electronic rear axles of group for can be fine when the cat ladder with the ladder face contact atress of step, improved its stability.

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 embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a structural view of an electric wheelchair according to an embodiment of the present invention;

FIG. 2 is a side view of the electric wheelchair of the present invention;

FIG. 3 is a detailed structure diagram of the movable connection portion of the present invention;

fig. 4 is a diagram showing the movement state of the third electric rear axle of the present invention;

FIG. 5 is a state diagram of the electric wheelchair when climbing a ladder;

FIG. 6 is a schematic structural view of a connection of an articulated joint according to another embodiment of the present invention;

figure 7 is a top view block diagram of the electric wheelchair embodiment of figure 6.

In the drawing, a first electric rear axle 100, a bridging block 101, a movable connecting part 102, a second connecting end 102-1, a third connecting end 102-2, a steering faucet 103, a second electric rear axle 200, a second connecting block 201, a seat support frame 202, a third electric rear axle 300, a third connecting block 301, a rear connecting block 301a, a storage supporting frame 302 and a seat 400.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1-5, a specific embodiment of the present invention is: an electric wheelchair with a ladder climbing function comprises a first electric rear axle 100 connected to the front part of the wheelchair, a second electric rear axle 200 connected to the middle part of the wheelchair, and a third electric rear axle 300 connected to the tail part of the wheelchair; the middle part of the first electric rear axle 100 is fixedly connected with one end of a bridging block 101, the other end of the bridging block 101 freely extends backwards from the first electric rear axle 100, the freely extending end of the bridging block 101 is connected with a movable connecting part 102, the movable connecting part 102 comprises two U-shaped connecting ends, namely a second connecting end 102-1 and a third connecting end 102-2, the open end of the second connecting end 102-1 is fixedly connected to the bridging block 101, the open end of the third connecting end 102-2 is connected to the bridging block 101, movable shafts are respectively arranged in the second connecting end 102-1 and the third connecting end 102-2, and the movable shafts can rotate around the connecting rotation; the middle part of the second electric rear axle 200 is fixedly connected with a second connecting block 201, and the second connecting block 201 is movably connected with the movable connecting part 102, so that the second electric rear axle 200 can move up and down; a seat support frame 202 is further connected to the second electric rear axle 200, so that a seat 400 can be connected through the seat support frame 202; a third connecting block 301 is movably connected to the middle of the third electric rear axle 300, a storage supporting frame 302 is fixedly connected to the third electric rear axle 300, a battery pack and a small gasoline generator can be mounted in the storage supporting frame 302, and the third connecting block 301 is movably connected with the movable connecting part 102; the second connecting block 201 and the third connecting block 301 are connected to the bridging block 101 through the movable shaft.

In the above embodiment, the first electric rear axle 100, the second electric rear axle 200, and the third electric rear axle 300 are all electric rear axles with disc brakes, the first electric rear axle 100 is connected with a steering faucet 103, and the steering faucet 103 is provided with a starting device and a control device; the control device can control the disc brake to work to realize the brake effect, a seat 400 is arranged in a seat support frame 202 on the second electric rear axle 200, handrails are connected to two sides of the seat 400, and a support frame for mounting a mobile phone support is fixedly connected to the steering faucet 103; and the electric rear axles of each group are respectively provided with an installation space for installing the battery pack; for example, the front portion of the first electric rear axle 100 is provided with a case in which the battery can be mounted, and a case in which the battery pack can be mounted is provided under the seat 400.

As shown in fig. 6 to 7, in another embodiment, the second electric rear axle 200, the third electric rear axle 300 and the first electric rear axle 100 are connected in the following manner: be connected with rear portion connecting block 301a between second rear axle and third rear axle, rear portion connecting block 301a one end fixed connection is on the electronic rear axle 200 of second, and rear portion connecting block 301 a's the other end passes through bolt and axle sleeve swing joint on the electronic rear axle 300 of third, be connected with bridging block 101 on the electronic rear axle 100 of first, the free end of bridging block 101 is through pivot swing joint in the middle part of rear portion connecting block 301a for electronic rear axle 200 of second and the electronic rear axle 300 of third can revolute the rotation from top to bottom of the axle, with the demand that realizes two sets of electronic rear axles behind the cat ladder and land.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an electronic wheelchair with cat ladder function which characterized in that includes:

the middle part of the first electric rear axle is fixedly connected with a bridging block, one end of the bridging block freely extends out, and the freely extending end of the bridging block is connected with a movable connecting part;

the middle part of the second electric rear axle is fixedly connected with a second connecting block, and the second connecting block is movably connected with the movable connecting part so that the second electric rear axle can move up and down; a seat support frame is further connected to the second electric rear axle, so that a seat can be mounted through the seat support frame; and

the middle part of the third electric rear axle is movably connected with a third connecting block, and the third connecting block is movably connected with the movable connecting part;

2. The electric wheelchair with the ladder climbing function as claimed in claim 1, wherein: the movable connecting part comprises two U-shaped connecting ends, the opening ends of the U-shaped connecting ends are fixedly connected to the bridging block, and a movable shaft is installed in each U-shaped connecting end, so that the second connecting block and the third connecting block can be connected to the bridging block through the movable shaft.

3. The electric wheelchair with the ladder climbing function as claimed in claim 1, wherein: the second connecting block and the third connecting block are replaced by rear connecting blocks, a rotating shaft hole is formed in the middle of each rear connecting block, a rotating shaft is movably mounted in each rotating shaft hole, and the movable connecting portion is connected to the rotating shaft.

4. An electric wheelchair with a ladder climbing function according to claim 2 or 3, characterized in that: and the third electric rear axle is connected with a storage supporting frame.

5. An electric wheelchair with a ladder climbing function according to claim 2 or 3, characterized in that: the first electric rear axle is connected with a steering faucet, and the steering faucet is provided with a starting device and a control device.

6. An electric wheelchair with a ladder climbing function according to claim 2 or 3, characterized in that: the first electric rear axle is connected with a pedal.

7. An electric wheelchair with a ladder climbing function according to claim 2 or 3, characterized in that: the first electric rear axle, the second electric rear axle and the third electric rear axle comprise disc brake electric rear axles.