CN215020766U

CN215020766U - Intelligence cat ladder wheelchair

Info

Publication number: CN215020766U
Application number: CN202120668388.8U
Authority: CN
Inventors: 王成哲; 廖翊杰; 周炎淼; 张志恒; 张洵
Original assignee: Hefei University of Technology
Current assignee: Hefei University of Technology
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-12-07
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses an intelligence cat ladder wheelchair, including the adjustable support of front and back wheel interval, the equal movable mounting in rear portion of the adjustable support left and right both sides of front and back wheel interval has the flexible wheel that climbs, the bottom of the adjustable support of front and back wheel interval is provided with two universal wheels, two the front side of universal wheel is provided with two rotatable wheels that climbs, the adjustable support of front and back wheel interval includes two stands, two the equal fixed mounting in stand dorsal part's top has the handle, two frame and support frame are installed respectively to middle part and bottom between the stand, the utility model relates to a wheelchair technical field. This intelligence cat ladder wheelchair through being provided with front and rear wheels interval adjustable support, makes the front and rear wheels interval adjustable, adapts to the not stair of co-altitude, and the telescopic structure that the rear wheel adopted, inside hide has a plurality of locating pawls, when through level land and stair, utilizes the flexible of locating pawl, adapts to different road surfaces, improves the stability of climbing the building wheelchair.

Description

Intelligence cat ladder wheelchair

Technical Field

The utility model relates to a wheelchair technical field specifically is an intelligence cat ladder wheelchair.

Background

In thirty-four years, the world wheelchairs show a trend of increasing intelligence, and in combination with the phenomenon of the aging population, the intelligent wheelchairs are an important research direction, and the existing stair-climbing wheelchairs in the market are mainly star wheels, crawler-type wheelchairs, stepping support wheelchairs and self-driving stair-climbing wheelchairs, but the four stair-climbing wheelchairs are also considered to have some defects: the planet wheel type stair climbing wheelchair is large in size and difficult to use on residential stairs of different sizes, the crawler type stair climbing wheelchair is large in resistance when walking on flat ground, inflexible in turning, complex in structure and high in cost, and the self-driving type stair climbing wheelchair is complex in operation and has high requirements for users, so that the study of a wheelchair with small size, simplicity in operation and more humanized designs is very necessary.

The existing wheelchair capable of climbing stairs in the market is limited by the height of steps during working, and project members independently design the wheelchair capable of climbing stairs with strong adaptability, innovate the distance between the rear wheels and the front and rear wheels of the wheelchair, and adjust the distance between the front and rear wheels to adapt to stairs with different heights; the telescopic structure that the rear wheel adopted, the inside claw type arm that has 10 help scrambles that hides, when through level land and stair, utilizes the flexible of control claw type arm, adapts to different road surfaces, has improved the stability of climbing the building wheelchair.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an intelligence cat ladder wheelchair has solved the current existing problem that can climb the building wheelchair and deposit and can be restricted by the step height at the during operation.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an intelligent ladder stand wheelchair comprises a support with an adjustable distance between front and rear wheels, wherein the rear parts of the left side and the right side of the support with the adjustable distance between the front and rear wheels are movably provided with deformable climbing wheels, the bottom of the support with the adjustable distance between the front and rear wheels is provided with two universal wheels, the front sides of the two universal wheels are provided with two rotatable climbing wheels, the support with the adjustable distance between the front and rear wheels comprises two upright posts, the tops of the back sides of the two upright posts are fixedly provided with handles, the middle part and the bottom between the two upright posts are respectively provided with a frame and a support frame, the left side and the right side of the bottom of the frame are respectively fixedly connected with two diagonal draw bars with the front sides of the two upright posts, the outer parts of the two diagonal draw bars are movably sleeved with sliding sleeves, fastening screw rods penetrate through the outer side walls of the sliding sleeves, the front parts of the left side and the right side of the frame are respectively hinged with rotary rods, and adjusting rods are connected between the rotary rods and the sliding sleeves, the deformable climbing wheel comprises two sealing plates, wherein a plurality of surrounding plate modules are fixedly connected to the outer side edges of the sealing plates, a gap is formed between any two surrounding plate modules, the inner sides of the surrounding plate modules are connected with a turntable in a rotating mode, the middle of the inner sides of the surrounding plate modules are located on the inner sides of the enclosing plates, fixing rods are fixedly connected to the outer side edges of the turntable, the outer ends of the fixing rods are hinged to positioning claws, and a stop block and a limiting block are arranged on the right side and the left side of each positioning claw.

Preferably, the two deformable climbing wheels are driven by a separation motor, and the rotating disc is driven by an internal motor.

Preferably, the two universal wheels are rotatably connected to the front side of the bottom of the support frame, and the two rotatable climbing wheels are rotatably connected to the front sides of the outer walls of the bottoms of the two rotating rods respectively.

Preferably, the two ends of the adjusting rod are respectively hinged with the bottom of the sliding sleeve and the inner side wall of the bottom of the rotating rod.

Preferably, the fastening screw is in threaded connection with the sliding sleeve, and the inner end of the fastening screw is pressed against the outer wall of the diagonal draw bar.

Preferably, it is a plurality of the bounding wall module is annular array distribution, the bounding wall module includes a plurality of aluminum product pipes, and radian evenly distributed such as the edge of shrouding is followed to a plurality of aluminum product pipes.

Preferably, a plurality of the dead lever is distributed in an annular array about the straight line at carousel axle center place, and all activity runs through between two arbitrary adjacent bounding wall modules has the locating pawl.

Advantageous effects

The utility model provides an intelligence cat ladder wheelchair. Compared with the prior art, the method has the following beneficial effects:

(1) this intelligence cat ladder wheelchair through being provided with front and back wheel interval adjustable support, creats the rear wheel of wheelchair and front and back wheel interval, makes the front and back wheel interval adjustable, adapts to the stair of co-altitude not, and the telescopic structure that the rear wheel adopted, inside hide the positioning pawl that has a plurality of help scrambles, when through level land and stair, utilizes the flexible of positioning pawl, adapts to different road surfaces, improves the stability of climbing the building wheelchair.

(2) The intelligent stair climbing wheelchair is provided with the deformable climbing wheels, the rear wheels adopt a mechanical structure driven by the motor to realize the extension and retraction of stair climbing teeth, the stair climbing teeth are in a withdrawing state in the normal advancing process, the motor drive is separated, the rotating speeds of the two motors are controlled through a program, and then the differential speed is formed to realize the steering function so as to ensure the normal advancing; when climbing stairs, the motor drives the climbing teeth to extend out to form a meshing mechanism with the stairs, so that the climbing stairs are realized. The rear wheel is adopted.

Drawings

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

FIG. 2 is a schematic structural view of the front and rear wheel spacing adjustable bracket of the present invention;

fig. 3 is a schematic structural view of the deformable climbing wheel of the present invention;

in the figure: 1. a bracket with adjustable distance between the front wheel and the rear wheel; 2. a deformable climbing wheel; 3. a universal wheel; 4. a rotatable climbing wheel; 5. a column; 6. a handle; 7. a frame; 8. a support frame; 9. a diagonal member; 10. a sliding sleeve; 11. fastening a screw rod; 12. a rotating rod; 13. adjusting a rod; 14. closing the plate; 15. a coaming module; 16. a turntable; 17. fixing the rod; 18. a positioning claw; 19. a stopper; 20. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an intelligent ladder wheelchair comprises a bracket 1 with an adjustable distance between front and rear wheels, deformable climbing wheels 2 are movably mounted at the rear parts of the left and right sides of the bracket 1 with the adjustable distance between the front and rear wheels, two universal wheels 3 are arranged at the bottom of the bracket 1 with the adjustable distance between the front and rear wheels, two rotatable climbing wheels 4 are arranged at the front sides of the two universal wheels 3, the bracket 1 with the adjustable distance between the front and rear wheels comprises two upright posts 5, handles 6 are fixedly mounted at the tops of the back sides of the two upright posts 5, a frame 7 and a support frame 8 are respectively mounted at the middle part and the bottom part between the two upright posts 5, two diagonal draw bars 9 are respectively fixedly connected with the left and right sides of the bottom part of the frame 7 and the front sides of the two upright posts 5, sliding sleeves 10 are movably sleeved outside the two diagonal draw bars 9, fastening screw rods 11 penetrate through the outer side wall of the sliding sleeves 10, rotary rods 12 are hinged with the front parts of the left and right sides of the frame 7, and an adjusting rod 13 is connected between the rotary rod 12 and the sliding sleeves 10, the deformable climbing wheel 2 comprises two sealing plates 14, a plurality of enclosing plate modules 15 are fixedly connected to the outer edge between the two sealing plates 14, a gap is formed between any two enclosing plate modules 15, a rotary table 16 is rotatably connected to the inner sides of the enclosing plate modules 15 and the middle part of the enclosing plate 14 positioned at the inner side, a fixed rod 17 is fixedly connected to the outer edge of the rotary table 16, positioning claws 18 are hinged to the outer ends of the fixed rods 17, a stop block 19 and a limit block 20 are respectively arranged on the right side and the left side of any positioning claw 18, the two deformable climbing wheels 2 are driven by a separating motor, the rotary table 16 is driven by an internal motor, the two universal wheels 3 are rotatably connected to the front side of the bottom of the support frame 8, the two rotatable climbing wheels 4 are rotatably connected to the front side of the outer wall of the bottoms of the two rotary rods 12, and two ends of the adjusting rod 13 are respectively hinged to the bottom of the sliding sleeve 10 and the inner side wall of the bottom of the rotary rod 12, fastening screw 11 and sliding sleeve 10 threaded connection, fastening screw 11's the inner is supported and is pressed on the outer wall of oblique pull rod 9, a plurality of bounding wall modules 15 are the annular array and distribute, bounding wall module 15 includes a plurality of aluminum product pipes, and radian evenly distributed such as the edge of a plurality of aluminum product pipes edge shrouding 14, a plurality of dead levers 17 are the annular array and distribute about the straight line at 16 axle centers of carousel, and it has locating pawl 18 to run through all the activities between arbitrary two adjacent bounding wall modules 15, through being provided with adjustable support 1 of front and back wheel interval, innovation to the rear wheel of wheelchair and front and back wheel interval, it is adjustable to make front and back wheel interval, adapt to the not stair of co-altitude, the telescopic structure that the rear wheel adopted, inside hides has the locating pawl 18 of a plurality of help scrambles, when through level land and stair, utilize the flexible of locating pawl 18, adapt to different road surfaces, the stability of building wheelchair is climbed in the improvement.

When the wheelchair is in a special road condition (hereinafter taking stairs as an example), a user confirms whether to climb or not, the user can control the motor inside the rear wheel to rotate by a deformation key or app on the wheelchair to transmit the rotation to the turntable 16, the turntable 16 drives the positioning claws 18 to slide on the appointed track, the positioning claws 18 need a certain advancing distance when extending, namely the positioning claws 18 extend out, the wheelchair also runs forwards to help the positioning claws 18 extend out, positioning pawl 18 passes through the clearance when stretching out to certain length, reach fixed effect, drive the rear wheel rotation by outside motor this moment again, form similar meshing state by the outside of positioning pawl 18 and stair, can reach the effect of climbing, before carrying out, when rear wheel interval adjustment, operating personnel is through unscrewing two fastening screw 11, can realize sliding sleeve 10 slides on oblique pull rod 9 afterwards, under the effect of adjusting pole 13, along with the change of sliding sleeve 10 position on oblique pull rod 9, can adjust the turned angle of bull stick 12, and realize the location through screwing up fastening screw 11, thereby can adjust the rotatable position of wheel 4 that climbs, and can not disturb the bulk motion.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an intelligence cat ladder wheelchair, includes front and rear wheels interval adjustable support (1), its characterized in that: the variable climbing device is characterized in that deformable climbing wheels (2) are movably mounted at the rear parts of the left side and the right side of the front-rear wheel interval adjustable support (1), two universal wheels (3) are arranged at the bottom of the front-rear wheel interval adjustable support (1), two rotatable climbing wheels (4) are arranged at the front sides of the two universal wheels (3), the front-rear wheel interval adjustable support (1) comprises two stand columns (5), handles (6) are fixedly mounted at the tops of the back sides of the two stand columns (5), a frame (7) and a support frame (8) are respectively mounted at the middle part and the bottom between the two stand columns (5), two diagonal draw bars (9) are fixedly connected with the left side and the right side of the bottom of the frame (7) respectively and the front sides of the two stand columns (5), sliding sleeves (10) are movably sleeved outside the two diagonal draw bars (9), and fastening screw rods (11) penetrate through the outer side wall of the sliding sleeve (10), the front parts of the left side and the right side of the frame (7) are respectively hinged with a rotating rod (12), an adjusting rod (13) is connected between the rotating rod (12) and a sliding sleeve (10), the deformable climbing wheel (2) comprises two sealing plates (14), a plurality of enclosing plate modules (15) are fixedly connected to the outer edge between the two sealing plates (14), a gap is formed between any two enclosing plate modules (15), the inner sides of the enclosing plate modules (15) are rotatably connected with a turntable (16) in the middle of the sealing plate (14) located on the inner side, fixing rods (17) are fixedly connected to the outer edge of the turntable (16), the outer ends of the fixing rods (17) are respectively hinged with positioning claws (18), and the right side and the left side of any positioning claw (18) are respectively provided with a stop block (19) and a limiting block (20).

2. The intelligent ladder wheelchair as claimed in claim 1, wherein: the two deformable climbing wheels (2) are driven by a separation motor, and the rotary disc (16) is driven by an internal motor.

3. The intelligent ladder wheelchair as claimed in claim 1, wherein: the two universal wheels (3) are rotatably connected to the front side of the bottom of the support frame (8), and the two rotatable climbing wheels (4) are rotatably connected to the front sides of the outer walls of the bottoms of the two rotating rods (12) respectively.

4. The intelligent ladder wheelchair as claimed in claim 1, wherein: the two ends of the adjusting rod (13) are respectively hinged with the bottom of the sliding sleeve (10) and the inner side wall of the bottom of the rotating rod (12).

5. The intelligent ladder wheelchair as claimed in claim 1, wherein: the fastening screw rod (11) is in threaded connection with the sliding sleeve (10), and the inner end of the fastening screw rod (11) is pressed against the outer wall of the diagonal draw bar (9).

6. The intelligent ladder wheelchair as claimed in claim 1, wherein: a plurality of bounding wall module (15) are annular array and distribute, bounding wall module (15) include a plurality of aluminum product pipes, and a plurality of aluminum product pipes along the equal radian evenly distributed in edge of shrouding (14).

7. The intelligent ladder wheelchair as claimed in claim 1, wherein: the fixing rods (17) are distributed in an annular array mode about a straight line where the axis of the rotary table (16) is located, and positioning claws (18) penetrate through the space between any two adjacent coaming modules (15) in a movable mode.