CN202776785U - Automatic stair climbing machine - Google Patents

Abstract

The utility model discloses an automatic stair climbing machine which utilizes alternative lifting of two frames to reach the purpose of climbing stairs. Since wheel type and crawler type stair climbing machines have fade-away or anteverted angles in work, users very fear, and the production cost is high. According to the utility model, screw rods, a large frame, a small frame, a chute and a pulley, a locking pressing block, a seat, a travelling wheel and a direction wheel as well as a transmission device are adopted; the large frame is arranged outside the small frame, the screw rods are arranged at the bottoms of the frames, threads are formed inside and outside the screw rods, the inner screw rod is positioned inside the outer screw rod, the outer screw rod is meshed with a worm gear and a worm fixed on the large frame and the small frame, the lifting of the screw rods enables the large frame and the small frame to life alternatively to reach the purpose of automatically climbing stairs; and since the screw rods lift simultaneously, the seat can move without an inclination angel, and the production cost is low.

Description

Automatic stari creeping ladder machine

Affiliated technical field

This utility model relates to a kind of device of capable of climbing stairs, relates in particular to alternately lifting and the flexible purpose that reaches stair climbing of utilizing two frameworks.

Background technology

Be to solve the problem of stair climbing, the technology that existing more stair climbing machine adopts is several groups of wheels that do not wait with size diameter, and the rotation by wheel is constantly climbed seat, or climbs with wheel drive crawler belt.When adopting the track type climbing-building machine to climb the building, larger to the edge damage of stairway step, but no matter adopt wheeled or the track type climbing-building machine, the angle that the seat on the climbing machine has layback or leans forward cause the psychology of user frightened, and manufacturing cost is higher.

Technology contents

This utility model aims to provide a kind of simple in structure, stair climbing machine that lifting is steady, safe and reliable and cheap.

For reaching the purpose of energy automatic stari creeping ladder, this utility model has adopted following technical scheme:

This utility model mainly is comprised of institutes such as motor, worm screw, worm gear, side plate, seats, it is characterized in that stair climbing machine has large and small two frameworks, two frameworks make it to link to each other by chute and pulley, be equipped with seat on the small frame, the both sides of small frame are equipped with road wheel, and the bottom of small frame is equipped with steering wheel, and big frame places the outside of small frame, small frame bottom four ends respectively are equipped with four rhizoid bars, and rear end, big frame bottom is equipped with two rhizoid bars.For falling the height of end screw mandrel, this utility model adopts each screw mandrel that will be fixed on large and small framework lower end to form by out screw rod and interior screw mandrel, all be shaped with screw thread inside and outside the out screw rod, interior screw mandrel places in the out screw rod, out screw rod and the worm gear, the worm engaging that are fixed on the large and small framework, the two ends of out screw rod respectively are equipped with the locking briquetting, place interior screw mandrel one end in the out screw rod also to be equipped with the locking briquetting.For keeping climbing machine steadily to contact to earth, be equipped with steamboat or position block in each screw mandrel adjacent and the big frame bottom front of large and small two base of frame.

Motor passes through worm gear, worm screw drives screw mandrel and makes vertical lifting or descend to drive greatly, small frame rises or descends by designing requirement, in addition can be respectively with large by motor and actuating device, little two frameworks are done horizontal displacement, the beneficial effects of the utility model are that the transmission by each actuating device and screw mandrel makes the height of big or small two frameworks and the requirement that horizontal displacement reaches setting, two frameworks are alternately made the purpose that vertical lifting or decline and horizontal displacement reach the automatic stari creeping ladder, so and because two screw mandrels system rises synchronously or decline can make solid seat on framework keep aclinic movement, and power consumption is less.

Embodiment of the present utility model

Drawings and Examples in conjunction with this case are further elaborated this utility model.

In the accompanying drawing:

Fig. 1 is external form figure of the present utility model

Fig. 2 is the screw mandrel location drawing in the large and small framework of the present utility model

Fig. 3 is interior out screw rod installation diagram of the present utility model

Among the above-mentioned figure: 1, side plate 2, appliance controling plate 3, seat 4, pulley 5, chute 6, small frame 7, big frame 8, road wheel 9, interior screw mandrel 10, out screw rod 11, steering wheel 12, move horizontally screw mandrel 13, contiguous block 14, lock and press piece 15, bearing cap 16, worm gear 17, worm screw 18, lower locking briquetting.

In conjunction with structure of the present utility model, now its movement locus is done a statement: this utility model can utilize the road wheel under the motor-driven small frame and rely on the steering wheel walking when level walking, when this utility model needs stair climbing, can utilize infrared ray approach switch and big frame bottom front to be equipped with two steamboats as the location link stopper, make the wheelchair location and be in SBR, this moment, large small frame was in same plane, general each lattice shoulder height of stair is about 160mm-180mm, width is about 260mm-280mm, so this utility model is when climbing the building, small frame is first under the effect of four rhizoid bars, binding drive big frame by pulley and chute upwards promotes about 250mm together, simultaneously the rear end screw mandrel of big frame is also simultaneously to about the about 230mm of downward-extension, after small frame has been raised to height about 250mm, the screw mandrel of vertical lift quits work, then big frame utilizes horizontal screw bolt to do about level reach 280mm, the front end down-feed screw of small frame begins to reset to zero-bit, when small frame rear end screw mandrel resets to the 180mm height and position (shrinking 70mm).Big frame front end (height 50mm) has been held on (180mm) on the stairway step like this, the screw mandrel that stretch down itself and big frame rear end (230mm length) forms the strong point of big frame jointly, at this moment small frame is under the horizontal screw bolt effect, small frame also moves forward 280mm, and small frame front end and big frame front end are again in one plane like this.Then small frame promotes about 250mm under the effect of four screw mandrels again, and the drive big frame promotes 250mm, big frame rear end two rhizoid bars extend 180mm (being 230mm+180mm) more simultaneously, after the small frame down-feed screw quits work, big frame recycling horizontal screw bolt is made parallel 280mm, then the down-feed screw of small frame front end begins to reset to zero-bit, and the down-feed screw of small frame rear end also resets to 360mm height and (namely shrinks 70mm, small frame rear end two rhizoid bars and the same zero-bit that resets to of front end two rhizoid bars after secondary action.) time, small frame is again under the horizontal screw bolt effect, small frame moves forward 280mm and big frame front end again in one plane again, these small frame four rhizoid bars promote 250mm more simultaneously again the big frame 250mm big frame rear end two rhizoid bars 180mm (230mm+180mm+180mm big frame rear end two rhizoid bars after three actions are just protected and treated that this is highly constant) that raises again that raises again, because when reality is used, greatly, utilize set-up of control system that 10 centimeters gap is arranged between small frame front end face and stairway step, so the actual width of shelving of framework and stairway step is about about 18 centimeters.Thereby reach the purpose of cat ladder ladder by the staggered circularly enhancing of two frameworks.When the infrared instrument of big frame finds that the front does not have step when again raising, big frame still moves forward 280mm, after small frame four rhizoid bars reset (at this moment big frame rear end two rhizoid bars shrink 180mm simultaneously), small frame moves forward 280mm, front end two rhizoid bar rising 250mm when small frame promotes again and rear end two rhizoid bars only rise 70mm, program was opposite when in-local had just begun cat ladder together later on, and stairmaster stands in another new high degree platform after three operations

When guaranteeing that large small frame contacts with stairway step when climbing steadily, each screw mandrel adjacent and big frame bottom front in the bottom of large and small framework respectively are equipped with a steamboat or position block.

Because the body weight of user human body of the present utility model can change the center of gravity of whole climbing machine, the center of gravity of climbing machine is positioned at the optimum position when making upper and lower building, and the orientation of chair on its small frame is rotatable.

This utility model adopts automatic control system, makes the rise and fall height of screw mandrel and the retrude distance of protracting of framework all be in controlled range, thereby makes the safe and reliable of climbing machine.

Stair climbing equipment user is old man or handicapped lower limb disability person, adopt the roller type climbing machine, back rake angle is arranged when climbing the building on the one hand, top rake is arranged in the time of downstairs, so user is caused mental pressure to a certain extent, so in addition since climb building power and overcome the power of motor that the problem such as hypsokinesis uses larger, simultaneously the accuracy of manufacture of machine is required also high, so manufacturing cost is higher.

Adopt screw rod transmission clearance-type climbing machine can overcome above-mentioned weak point, if but when using common screw mandrel as mechanical transmissioning piece, then can make screw mandrel become very long, very inconvenient in use.All be equipped with the locking briquetting for head it off this utility model adopts at the up and down two ends of out screw rod, and it is fixed on the framework, also to be equipped with the locking briquetting equally on interior screw mandrel is positioned at an end of out screw rod, locking briquetting end face is the plane.During elevating screw work of the present utility model, be shaped with thread segment at screw mandrel, the driven by motor worm and gear rotates, make out screw rod only produce elevating movement, and not thereupon rotation of out screw rod itself, but when the lifting of out screw rod reaches its extreme value, the end locking briquetting that is fixed in the screw mandrel two ends contacts and locks with worm gear, thereby make out screw rod under the drive of worm gear, produce rotation, owing to all be shaped with screw thread inside and outside the out screw rod, so because the rotation of out screw rod drives again interior screw mandrel generation elevating movement, and interior screw mandrel is positioned on the end of out screw rod and also is equipped with the locking briquetting, when the utmost point is planted the position, also can utilize equally the locking of briquetting end face, drive greatly to reach, small frame replaces lifting, has finished the purpose of stair climbing.

Claims (3)

1. automatic stari creeping ladder machine, mainly formed by motor, worm screw, worm gear, side plate, seat, it is characterized in that automatic stari creeping ladder machine has large and small two frameworks, two frameworks make it to link to each other by chute and pulley, are equipped with seat on the small frame, and the both sides of small frame are equipped with road wheel, the bottom is equipped with steering wheel, big frame places the outside of small frame, and small frame bottom four ends respectively are equipped with four rhizoid bars, and rear end, big frame bottom is equipped with two rhizoid bars.

2. automatic stari creeping according to claim 1 ladder machine, it is characterized in that each screw mandrel that is fixed on large and small framework lower end forms by out screw rod and interior screw mandrel, all be shaped with screw thread inside and outside the out screw rod, interior screw mandrel places in the out screw rod, out screw rod and the worm gear, the worm engaging that are fixed on the large and small framework, the up and down two ends of interior out screw rod all are equipped with the locking briquetting, and an end that is positioned at the screw mandrel of out screw rod also is equipped with the locking briquetting.

3. automatic stari creeping ladder machine according to claim 1 is characterized in that all being equipped with steamboat or position block in each screw mandrel adjacent and the big frame bottom front of large and small two base of frame.

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