CN2464305Y

CN2464305Y - Wheel chair capable of going up stairs

Info

Publication number: CN2464305Y
Application number: CN 01211657
Authority: CN
Inventors: 郭永利
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-16
Filing date: 2001-02-16
Publication date: 2001-12-12
Anticipated expiration: 2011-02-16

Abstract

The utility model relates to a stair-climbing wheelchair, which is composed of a handle 1, chains 2 and 11, a bearing 3, a middle gear wheel 4, a front gear wheel 5, a seat 6, a supporting rack 8, a bearing wheel 9, a driving wheel 12, a rear gear wheel 13, a pedrail 14, etc. The utility model, which has simple production and low cost, is suitable for a patient with a disabled lower limb to use; not only operation is convenient, but also the wheelchair is helpful to physical training. The utility model solves the obsession that a patient with a disabled lower limb can not independently get up and down stairs.

Description

The wheelchair of stair climbing

This utility model relates to mechanical, particularly a kind of wheelchair of stair climbing.

As everyone knows, though existing common wheelchair is simple, the walking restriction is too big, can only walk the level land, go up clivia, can not stair climbing, healthy people for the residual disease of lower limb uses very inconvenience, is perplexing these people, at present the wheelchair that the energy going upstairs is also arranged or top bar both at home and abroad always, but the Wheelchair structure complexity of this kind structure, involve great expense, the automaticity height, the occupant can not obtain the physical fitness training of appropriateness.

The purpose of this utility model be exactly at common wheelchair can not stair climbing shortcoming, and the Wheelchair structure complexity of energy stair climbing, the automaticity height, shortcoming such as involve great expense, it is big, strong from the main force to design a kind of simple in structure, easily manufactured, small and exquisite, free to advance or retreat, occupant's range of activity, and can obtain physical fitness training, strengthen the wheelchair of healthy stair climbing.

Technical conceive of the present utility model:

According to the purpose of this utility model, a kind of wheelchair of stair climbing is provided, its structure is that seat is suspended on the bearing of support, the support of the center of gravity the when warrantor sits tilts within the specific limits, the swing bearing is rotated, and the people still can level and sit, make mount before cant beam become miter angle with ground, back cant beam becomes 60 degree angles with ground, to shorten vehicle body, it is narrow and small to adapt to the general residential building building platform of walking unhurriedly, like this design can make advance last 30 spend sloping, retreat can above 45 degree slopes, for laborsaving upstairs, move back grade gear ratio and strengthen, upstairs speed is slower, regression upstairs, downstairs move ahead, guarantee safety; Employing inclined-plane axle sleeve cooperates with one-way clutch, makes simple in structure, easy to operate, solved well and advanced, brake, retreated conversion flexibly, the occupant need only just can realize stopping by entering by control crank, by stopping to moving back or stopping by falling back on, by stopping to the overall process of advancing; Shake into because two handles of singly stopping are singly advanced in employing, make to change flexibly, can turn-take by original place 360 degree; Crawler belt and bogie wheel adopt lightweight composite materials, do not injure ground; The chain rail is designed to the right angle dentition formula, is beneficial to and tops bar; Swing is provided with the lock pin jack, when not needing the seat autobalance, perhaps wants it when the chaise longue rest, can select suitable jack locking seat, adopts more above-mentioned design, make the wheelchair of this stair climbing reach perfect.

Accompanying drawings structure of the present utility model and embodiment:

Fig. 1 is a perspective exploded view of the present utility model.

Fig. 2 is a combination sketch map of the present utility model.

Fig. 3 is a back axle structural representation of the present utility model.

Fig. 4 is an one-way clutch structural representation of the present utility model.

Fig. 5 is a schematic top plan view of the present utility model.

1 is handle, 2 is chain, 3 is bearing, 4 is middle gear wheel, 5 is preceding gear wheel, 6 is seat, 7 is jack, 8 is support, 9 is BOGEY WHEEL, 10 is center of gravity, 11 is chain, 12 is driving wheel, 13 is the back gear wheel, 14 is crawler belt, 15 is left sleeve, 16 is the disjunctor axle sleeve, 17 is right sleeve, 18 is the one-way clutch combination gear, 19 is left intermediary wheel, 20 is gear, 21 is the reverse combination gear of one-way clutch, 22 is mesomerism gear, 23 is gear, 25 is central shaft, 26 is axle sleeve, 27 is spring, 28 are a push jack, 29 is wedge-shaped slot, 30 is roller.

Shown in accompanying drawing 1 and accompanying drawing 2, this utility model is by handle 1,

chain

2,11, bearing 3, middle gear wheel 4, preceding gear wheel 5, seat 6, support 8, BOGEY WHEEL 9, driving wheel 12, formations such as back gear wheel 13 and crawler belt 14, wherein seat 6 is suspended on the bearing 3 of support 8, support tilts within the specific limits, the swing bearing rotates, the people still can level and sit, and cant beams become miter angle before the support 8 with ground, and cant beam becomes 60 to spend angles behind the support with ground, like this design advance minimum can above 30 degree slopes, retreating maximum can above 45 degree slope, for laborsaving upstairs, move back grade gear ratio and strengthens, upstairs speed is slow, regression upstairs downstairs moves ahead, and moves very safe; On seat 6, be provided with lock pin jack 7, when not needing the seat autobalance, or when the chaise longue rest, can select suitable jack locking seat; Be provided with the handle 1 that rocks from side to side in seat 6 front sides, rotate preceding left and right sides gear wheel 5, drive chain 2, chain 2 links to each other with the toothrow that middle gear wheel 4 is provided with double rows of teeth, gear wheel 4 rotates in the drive, and another toothrow by middle gear wheel links to each other with chain 11 again, by chain 11 power is passed to back gear wheel 13, back gear wheel 13 is again by the disjunctor axle sleeve 16 in the back axle and left and right sides sleeve 15,17, one-way clutch combination gear 18,21, and intermediary wheel 19,22; Driven gear 20,23 makes driving wheel 12 begin to rotate, and drives crawler belt 14, makes four BOGEY WHEEL runnings, the car load walking.

As shown in Figure 4, be one-way clutch structure of the present utility model, wherein 25 is axles, the 26th, axle sleeve, the 27th, and spring, the 28th, a push jack, 29 is wedge-shaped slot, the 30th, roller, this design is to adopt the motorcycle initiating one-way clutch, therefore no longer describes in detail.

Shown in accompanying drawing 1 and accompanying drawing 3, embodiment of the present utility model is as follows:

Each cover about this utility model drive mechanism, now be that example is described as follows: as shown in Figure 1 with the left side, the person of taking advantage of can shake handle 1, gear wheel 5 before rotating, drive chain 2 is meshed with middle gear wheel 4 double rows of teeth right side teeth and middle gear wheel 4 is rotated, by the moving chain 11 of middle gear wheel left side cingulum, power is passed to back gear wheel 13, as shown in Figure 3, back gear wheel 13 drives disjunctor axle sleeve 16 and rotates, disjunctor axle sleeve 16 is with the inclined-plane and face directly with left sleeve 15 and combine, and drives left sleeve 15 during rotation and rotates, and left sleeve 15 makes one-way clutch combination gear 18 rotate again when rotating, by intermediary wheel 19 gear 20 is rotated again, and drive driving wheel 12 and begin to rotate, thereby drive crawler belt 14 BOGEY WHEELs 9, car load is advanced; At this moment, if shake handle 1 backward, back gear wheel 13 is rotated backward, then separate with one-way clutch gear 18, simultaneously the inclined-plane of disjunctor axle sleeve 16 will make back gear wheel 13 slide along the inclined-plane to the right, combine with right sleeve 17, right sleeve 17 is rotated, one-way clutch gear 21 is rotated, by intermediary wheel 22 gear 23 is rotated, this moment is if advance, then play braking action, after car comes to a complete stop, shake handle 1 backward as continuing, then car load begins to retreat walking, instead cross, as in fallback procedures, shaking forward, also be first brake, readvance; Like this, two side handles shake then simultaneously that car load advances, and shake then brake after simultaneously; Shake then again and retreat, vice versa; As turning left, only shake right handles and get final product; If think the zig zag, can after shake left handle, the preceding right handles of shaking; Turn right and also so operate, direction is just passable on the contrary.

Claims

1, a kind of wheelchair of stair climbing, it is by handle (1), chain (2), (11), bearing (3), middle gear wheel (4), preceding gear wheel (5), seat (6), support (8), BOGEY WHEEL (9), driving wheel (12), back gear wheel (13) and crawler belt formations such as (14), it is characterized in that seat (6) is on the bearing (3) that is suspended on support (8), the preceding cant beam of support (8) becomes miter angle with ground, and cant beam becomes 60 degree angles behind the support with ground; On seat (6), be provided with lock pin jack (7), be provided with the handle that rocks from side to side (1) in seat (6) front side, preceding left and right sides gear wheel (5) and middle gear wheel (4), be provided with chain (2) in the middle of pro-gear wheel (5) and the middle gear wheel (4), middle gear wheel (4) is provided with double rows of teeth, and by chain (11) power pass to the back gear wheel (13), back gear wheel (13) is again by disjunctor axle sleeve (16) and left and right sides sleeve (15) in the back axle, (17), one-way clutch combination gear (18), (21) and intermediary wheel (19), (22), driven gear (20), (23) driving wheel (12) is rotated, drive crawler belt (14) and BOGEY WHEEL (9), drive and sail the car load operation.