CN212369190U - Stair-climbing wheelchair chassis based on deformation wheel mechanism - Google Patents

Abstract

The utility model discloses a stair wheelchair chassis climbs based on deformation wheel mechanism, including T style of calligraphy wheelchair chassis, its characterized in that, install two sets of relative connection hinges on the T style of calligraphy wheelchair chassis, install the connecting seat on the connection hinge, it has the relative attenuator of multiunit to articulate between T style of calligraphy wheelchair chassis and the connecting seat, the cover is equipped with damping spring on the attenuator, install driving motor on the connecting seat, driving motor's rotation is served and is installed I shape walking wheel, it climbs stair mechanism to be equipped with the deformation on the I shape walking wheel. The beneficial effects of the utility model are that, go forward like the car with the state of indeformable on the level road, when meetting stair, can warp and climb stair for the triangle wheel that can climb stair climbs stair, can not cause the damage to stair, and difficult the skidding controls easy operation.

Description

Stair-climbing wheelchair chassis based on deformation wheel mechanism

Technical Field

The utility model relates to a wheelchair design technical field specifically is a stair-climbing wheelchair chassis based on deformation wheel mechanism.

Background

The research on stair climbing wheelchairs and obstacle crossing mechanisms in the world has been carried out for more than 100 years, and various schemes are proposed in sequence, wherein a crawler type wheelchair, a planet wheel type wheelchair and a leg foot type wheelchair are common, and the crawler type wheelchair is large in size and easily causes damage to stair steps due to the defect of principle in general meaning; the leg-foot type is also complex in general, a control system is complex, the planetary gear type is simple in principle and easy to implement, and has advantages in all aspects, the common planetary gear structure has two degrees of freedom, if the planetary gear has determined motion, two determined inputs are needed, in various currently used planetary gears, a central gear of the planetary gear is driven by a motor, namely only one determined input is given, and the other degree of freedom is restricted by the condition of the ground.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a stair-climbing wheelchair chassis based on deformation wheel mechanism has solved the damage to the stair step, and control system is loaded down with trivial details, the problem of skidding easily.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a stair climbing wheelchair chassis based on a deformation wheel mechanism comprises a T-shaped wheelchair chassis, wherein two groups of opposite connecting hinges are mounted on the T-shaped wheelchair chassis, connecting seats are mounted on the connecting hinges, a plurality of groups of opposite dampers are hinged between the T-shaped wheelchair chassis and the connecting seats, damping springs are sleeved on the dampers, a driving motor is mounted on the connecting seats, an I-shaped travelling wheel is mounted on the rotating end of the driving motor, and a deformation stair climbing mechanism is arranged on the I-shaped travelling wheel;

the stair climbing mechanism warp, it includes: the device comprises a fixed connecting rod, an arc-shaped wheel sheet, a limiting sleeve, a hinged frame, an electric hydraulic push rod, a fixed sliding chute, a fixed clamping groove, a fixed limiting rod and a spring ball;

fixed connection pole fixed mounting takes turns to on the wheel at the I shape, arc wheel piece suit is on fixed connection pole, limiting sleeve is located I shape walking wheel and arc wheel piece between, articulated frame is installed at I shape walking wheel center department, the one end of electronic hydraulic push rod articulates on articulated frame, the other end and the arc wheel piece of electronic hydraulic push rod are articulated, fixed spout is opened on I shape walking wheel, fixed slot opens in fixed spout, fixed stop lever is installed on the arc wheel piece, fixed stop lever and fixed spout sliding connection, the one end at fixed stop lever is installed to the spring pearl, spring pearl and fixed slot swing joint.

Preferably, the number of the connecting hinges and the connecting seats is four, and the connecting hinges and the connecting seats are uniformly distributed on the T-shaped wheelchair chassis.

Preferably, the number of the dampers and the damping springs is eight, and the dampers and the damping springs are uniformly distributed between the T-shaped wheelchair chassis and the connecting seat.

Preferably, the number of parts on each I-shaped travelling wheel is four, and the parts are uniformly distributed on the I-shaped travelling wheels.

Preferably, install on the I-shaped walking wheel and prevent the stone pole, prevent that the stone pole divides into three groups, and every group is four.

Preferably, the I-shaped travelling wheel is sleeved with a rubber tire.

Advantageous effects

The utility model provides a stair wheelchair chassis climbs based on deformation wheel mechanism possesses following beneficial effect, and this device advances like the car with the state of indeformable on the level road, when meetting stair, can warp and climb stair for the triangle wheel that can climb stair, can not cause the damage to stair, is difficult for skidding, control easy operation.

Drawings

Fig. 1 is a schematic view of a stair climbing wheelchair chassis based on a deformation wheel mechanism.

Fig. 2 is a left side view of the i-shaped road wheel of the utility model.

Fig. 3 is a right side view of the i-shaped road wheel of the present invention.

In the figure: 1. a T-shaped wheelchair chassis; 2. connecting a hinge; 3. a connecting seat; 4. a damper; 5. a damping spring; 6. a drive motor; 7. i-shaped travelling wheels; 8. a fixed connecting rod; 9. an arc-shaped wheel sheet; 10. a limiting sleeve; 11. a hinged frame; 12. an electric hydraulic push rod; 13. fixing the chute; 14. fixing the clamping groove; 15. fixing a limiting rod; 16. a spring bead; 17. a stone-proof rod; 18. a rubber tire.

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: a stair climbing wheelchair chassis based on a deformation wheel mechanism comprises a T-shaped wheelchair chassis 1, wherein two groups of opposite connecting hinges 2 are mounted on the T-shaped wheelchair chassis 1, connecting seats 3 are mounted on the connecting hinges 2, a plurality of groups of opposite dampers 4 are hinged between the T-shaped wheelchair chassis 1 and the connecting seats 3, damping springs 5 are sleeved on the dampers 4, a driving motor 6 is mounted on the connecting seats 3, an I-shaped travelling wheel 7 is mounted at the rotating end of the driving motor 6, and a deformation stair climbing mechanism is arranged on the I-shaped travelling wheel 7; the stair climbing mechanism warp, it includes: the device comprises a fixed connecting rod 8, an arc-shaped wheel sheet 9, a limiting sleeve 10, a hinge bracket 11, an electric hydraulic push rod 12, a fixed sliding chute 13, a fixed clamping groove 14, a fixed limiting rod 15 and a spring bead 16; the fixed connecting rod 8 is fixedly installed on the I-shaped traveling wheel 7, the arc-shaped wheel sheet 9 is sleeved on the fixed connecting rod 8, the limiting sleeve 10 is located between the I-shaped traveling wheel 7 and the arc-shaped wheel sheet 9, the hinge frame 11 is installed at the center of the I-shaped traveling wheel 7, one end of the electric hydraulic push rod 12 is hinged to the hinge frame 11, the other end of the electric hydraulic push rod 12 is hinged to the arc-shaped wheel sheet 9, the fixed chute 13 is arranged on the I-shaped traveling wheel 7, the fixed clamping groove 14 is arranged in the fixed chute 13, the fixed limiting rod 15 is installed on the arc-shaped wheel sheet 9, the fixed limiting rod 15 is connected with the fixed chute 13 in a sliding mode, the spring ball 16 is installed at one end of the fixed limiting rod 15, and the spring ball 16 is movably connected; the number of the connecting hinges 2 and the connecting seats 3 is four, and the connecting hinges 2 and the connecting seats 3 are uniformly distributed on the T-shaped wheelchair chassis 1; the number of the dampers 4 and the number of the damping springs 5 are eight, and the dampers 4 and the damping springs 5 are uniformly distributed between the T-shaped wheelchair chassis 1 and the connecting seat 3; the number of parts on each I-shaped travelling wheel 7 is four, and the parts are uniformly distributed on the I-shaped travelling wheels 7; the I-shaped travelling wheels 7 are provided with stone-proof rods 17, and the stone-proof rods 17 are divided into three groups, namely four in each group; the I-shaped travelling wheel 7 is sleeved with a rubber tire 18.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.

Example (b): when the wheelchair is used, when the wheelchair travels on a flat road, the driving motor 6 drives the I-shaped travelling wheels 7 to rotate, the I-shaped travelling wheels 7 rotate to move the T-shaped wheelchair chassis 1, when the wheelchair passes through a hollow road surface, the shock absorption is carried out through the matching of the damper 4 and the shock absorption spring 5, the damper 4 and the shock absorption spring 5 contract when being stressed, the connecting seat 3 moves up and down through the connecting hinge 2 to absorb the shock, each wheel can be independently controlled and is subjected to differential steering, the wheelchair can advance like an automobile in an undeformed state on the flat road, and stones can be prevented from jumping into the I-shaped travelling wheels 7 through the stone preventing rods 17, so that the parts in the I-shaped travelling wheels 7 are prevented from being damaged;

when encountering stairs, starting the electric hydraulic push rod 12, extending the telescopic end of the electric hydraulic push rod 12 to drive the arc-shaped wheel piece 9 to rotate on the fixed connecting rod 8, opening the arc-shaped wheel piece 9 to form a triangular wheel with the I-shaped travelling wheel 7, preventing the arc-shaped wheel piece 9 from shaking through the limiting sleeve 10 to play a limiting role, sliding the fixed limiting rod 15 in the fixed sliding chute 13 when the arc-shaped wheel piece 9 moves, contacting the spring beads 16 with the fixed clamping grooves 14 when the fixed limiting rod 15 slides to the tail end of the fixed sliding chute 13, limiting the fixed limiting rod 15 through the matching of the fixed limiting rod 15 and the spring beads 16, driving the I-shaped travelling wheel 7 to rotate through the driving motor 6 to climb the stairs, deforming the triangular wheel capable of climbing the stairs to climb the stairs to avoid damaging the stairs, not easy to slip and simple to control and operate.

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. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

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 (6)

1. The stair climbing wheelchair chassis based on the deformation wheel mechanism comprises a T-shaped wheelchair chassis (1) and is characterized in that two groups of opposite connecting hinges (2) are mounted on the T-shaped wheelchair chassis (1), connecting seats (3) are mounted on the connecting hinges (2), multiple groups of opposite dampers (4) are hinged between the T-shaped wheelchair chassis (1) and the connecting seats (3), damping springs (5) are sleeved on the dampers (4), a driving motor (6) is mounted on the connecting seats (3), I-shaped travelling wheels (7) are mounted on the rotating ends of the driving motor (6), and deformation stair climbing mechanisms are arranged on the I-shaped travelling wheels (7);

the stair climbing mechanism warp, it includes: the device comprises a fixed connecting rod (8), an arc-shaped wheel sheet (9), a limiting sleeve (10), a hinge frame (11), an electric hydraulic push rod (12), a fixed sliding chute (13), a fixed clamping groove (14), a fixed limiting rod (15) and a spring bead (16);

fixed connection pole (8) fixed mounting is on I shape walking wheel (7), arc wheel piece (9) suit is on fixed connection pole (8), stop sleeve (10) are located I shape walking wheel (7) and arc wheel piece (9), articulated frame (11) are installed in I shape walking wheel (7) center department, the one end of electronic hydraulic push rod (12) articulates on articulated frame (11), the other end and the arc wheel piece (9) of electronic hydraulic push rod (12) are articulated, fixed spout (13) are opened on I shape walking wheel (7), fixed draw-in groove (14) are opened in fixed spout (13), fixed gag lever post (15) are installed on arc wheel piece (9), fixed gag lever post (15) and fixed spout (13) sliding connection, the spring bead (16) is installed at one end of the fixed limiting rod (15), and the spring bead (16) is movably connected with the fixed clamping groove (14).

2. Stair climbing wheelchair chassis based on a deformation wheel mechanism according to claim 1, characterized in that the number of the connecting hinges (2) and the connecting seats (3) is four, and the connecting hinges (2) and the connecting seats (3) are evenly distributed on the T-shaped wheelchair chassis (1).

3. The stair climbing wheelchair chassis based on a deformation wheel mechanism is characterized in that the number of the dampers (4) and the damping springs (5) is eight, and the dampers (4) and the damping springs (5) are uniformly distributed between the T-shaped wheelchair chassis (1) and the connecting seat (3).

4. The stair climbing wheelchair chassis based on a deformation wheel mechanism is characterized in that the number of parts on each I-shaped travelling wheel (7) is four, and the parts are uniformly distributed on the I-shaped travelling wheels (7).

5. The stair climbing wheelchair chassis based on a deformation wheel mechanism as claimed in claim 1, wherein stone-proof rods (17) are mounted on the I-shaped travelling wheels (7), and the stone-proof rods (17) are divided into three groups, four in each group.

6. The stair climbing wheelchair chassis based on a deformation wheel mechanism as claimed in claim 1, wherein the I-shaped road wheels (7) are sleeved with rubber tires (18).

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