CN2461518Y

CN2461518Y - Wheel chair able to crawl stairs

Info

Publication number: CN2461518Y
Application number: CN 01211658
Authority: CN
Inventors: 郭永利
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-16
Filing date: 2001-02-16
Publication date: 2001-11-28
Anticipated expiration: 2011-02-16

Abstract

The utility model relates to a stair-climbing wheelchair, which is composed of a handle 1, a gear wheel 2, a chain 3, a driving torque 4, a pedrail 5, an autobalancer 6, a motor 7, a rack bar 8, a sliding roller 9, an empty slot 10, a seat back 11, a pushing-pulling-locking handle 12, a seat 15, a bearing wheel 16, a tension wheel 17, a changeover speed gear 19, etc. The utility model, which has simple fabrication and low cost, is suitable for a patient whose lower limb is disabled. Not only operation is convenient, but also the stair-climbing wheelchair is helpful to physical training. The utility model solves the obsession when the patient whose lower limb is disabled gets up and down stairs.

Description

A kind of wheelchair of stair climbing

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

As everyone knows, though the common Wheelchair structure of selling on the market is simple, cheap, but the walking restriction is too big, can only walk the level land, go up clivia, can not stair climbing, use very inconvenience for the healthy people of lower limb disability, perplexing these people always, the domestic and international at present wheelchair that the energy going upstairs is also arranged or top bar, its complex structure involves great expense, because automaticity is too strong, the occupant is difficult to obtain the exercise of physical ability.

The purpose of this utility model be exactly at common wheelchair can not stair climbing shortcoming; And the Wheelchair structure of energy stair climbing is complicated, involve great expense, the automaticity height, physical ability can not get shortcomings such as exercise, provide a kind of simple in structure, easy to make, small and exquisite, free to advance or retreat, occupant's range of activity is big, capacity of will is strong, handiness, occupant's center of gravity are low, stablize into the degree height, and make the occupant can obtain physical fitness training, strengthen the wheelchair of healthy a kind of 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 the occupant only needs both hands to shake handle just can to control advancing, stop, move back, changeing of wheelchair, the power of handle is transferred to power and the co-axial half-axile sleeve gear of preceding BOGEY WHEEL through gear, chain, carry out speed change by change speed gear box, power is passed to driving wheel, the action that driving wheel makes wheelchair make into, stop, move back, change; This utility model is for stair climbing, adopts track structure to be suitable for topping bar, and is provided with autobalance, and when wheelchair tilted forward and back, autobalance can be connected motor automatically, motor gear driven carry on the tooth bar or descends and keep the seat level; Tooth bar rises and can make in crawler belt body and BOGEY WHEEL and the level angle range at 45, and the tooth bar rising part can be dissolved in backrest hollow; Be provided with about BOGEY WHEEL each three, BOGEY WHEEL is provided with regulating wheel in the back, and crawler belt is upwarped, and is suitable for topping bar; The change speed gear box that adopts the inclined shaft cover to cooperate with one-way clutch, make Wheelchair structure simple, easy to operate, solved well and advanced, brake, retreated conversion flexibly, the occupant need only control crank just can realize stopping by entering, by stop to move back or stop by falling back on, by stopping to the overall process of advancing; Crawler belt and BOGEY WHEEL adopt lightweight composite materials, do not injure ground; The chain rail of crawler belt is designed to right angle dentition formula or imitative tank type, is beneficial to and tops bar.

Accompanying drawings structure of the present utility model and embodiment:

Fig. 1 is a schematic side view of the present utility model.

Fig. 2 looks sketch map for master of the present utility model.

Fig. 3 is a schematic top plan view of the present utility model.

Fig. 4, Fig. 5 and Fig. 6 are change speed gear box drive mechanism sketch map of the present utility model.

Fig. 7 is an one-way clutch structural representation of the present utility model.

Fig. 8 is an autobalance structural representation of the present utility model.

Fig. 9 is a caterpillar belt structure sketch map of the present utility model.

Figure 10 is an embodiment sketch map of the present utility model.

1 is handle, 2 is gear, 3 is chain, 4 is driving wheel, 5 is crawler belt, 6 is autobalance, 7 is motor, 8 is tooth bar, 9 are the slip roller bearing, 10 is dead slot, 11 is backrest, 12 is the Pushpulll locking handle, 13 is manual switch, 14 is armrest, 15 is seat, 16 is BOGEY WHEEL, 17 is regulating wheel, 18 is semiaxis, 19 is change speed gear box, 20 is handrail post, 21 is motor gear, 22 are motor perforation axle, 23 is gear wheel, 24 is gear, 25 is sleeve, 26 is intermediary wheel, 27 is gear, 28 is gear, 29 is two supports, 30 is intermediary wheel, 31 is gear, 32 is one-way clutch, 33 is central shaft, 34 is sleeve, 35 is spring, 36 is supporting slice, 37 is skewed slot, 38 is roller, 39 is two fixed carbon resisters, 40 is pointer, 41 is the axle center, 42 is pendulum, 43 is accumulator.

As accompanying drawing 1 to accompanying drawing 9, this utility model is by handle 1, gear 2, chain 3, driving wheel 4, crawler belt 5, autobalance 6, motor 7, tooth bar 8, slip roller bearing 9, dead slot 10, backrest 11, Pushpulll locking handle 12, manual switch 13, armrest 14, seat 15, BOGEY WHEEL 16, regulating wheel 17, semiaxis 18, change speed gear box 19, handrail post 20, motor gear 21, motor connects axle 22, one-way clutch 32, accumulator 43 formations such as grade, as shown in Figure 1, wherein the front end of seat 15 is provided with that the front-axle beam between the BOGEY WHEELs is connected before two supports 29 and two, the backrest 11 and the motor 7 of seat 15, autobalance 6 is connected, when wheelchair tilts forward and back, autobalance 6 can be connected motor 7 automatically, motor gear 21 is driven carry on the tooth bars 8 or descend, keep seat 15 levels this moment, tooth bar 8 rising parts can be placed in backrest 11 hollow in, when tooth bar 8 risings stop, the Pushpulll locking handle 12 that is located at handrail 14 both sides can pin tooth bar 8, plays the effect of fixed seat 15; Tooth bar 8 lower ends connect slip roller bearing 9, slip roller bearing 9 along dead slot 10 and spur the crawler belt body and BOGEY WHEEL 16 on carry or descend; On seat front end two supports 29, be provided with handle 1, gear 2, chain 3, be provided with handrail 14, Pushpulll locking handle 12, manual switch 13, pillar 20 at the seat dual side-edge; Be provided with 16 3 of BOGEY WHEELs in the left and right sides, seat bottom, crawler belt 5, regulating wheel 17; On the left side, seat 15 bottom support 29, be provided with accumulator 43; Be provided with change speed gear box 19 in chain 3 bottoms, shown in accompanying drawing 4 and accompanying drawing 5, change speed gear box 19 is gear wheels 23 of power being passed to sleeve 25 consubstantialities by chain 3, when shaking handle 1 forward, sleeve 25 combines and rotates with left side cover axis helical teeth, by the one-way clutch 32 of iron chains in gear 24 gear 24 is rotated, and by intermediary wheel 26 gear 27 is rotated, driving wheel 4 is rotated, and this moment, wheelchair advanced; When handle 1 shakes backward, as shown in Figure 6, sleeve 25 promotes on the inclined-plane to glide to combining with iron chains one-way clutch 32 gear 28 in to the right gear 28 is rotated backward, and drive intermediary wheel 30 makes gear 31 pass to driving wheel 4 to power, and wheelchair is halted; Wherein two one-way clutch are reverse; As shown in Figure 7, one-way clutch 32 is made of central shaft 33, sleeve 34, spring 35, supporting slice 36, skewed slot 37, roller 38, is the one-way clutch structure that adopts motorcycle, no longer describes in detail; Autobalance 6, motor 7 link to each other with backrest 11, shown in accompanying drawing 1, accompanying drawing 3 and accompanying drawing 8, when the seat level, autobalance pointer 40 is in the middle of two fixed carbon resisters 39, and the seat pointer 40 that leans forward 41 rotates to contact with right side resistance and makes the motor rotation around the axle center under the effect of pendulum 42, tooth bar 8 is also moving thereupon, the inclination angle is big more, and resistance is more little, and motor speed is big more, keep cutting off the power supply after the rapid level of seat, otherwise also be like this; Autobalance 6 can not use yet, fully can be manual, and the upper and lower building of occupant is upper body and level angle at 45, can take fully; As shown in Figure 9, the tooth angle of crawler belt 5 is the design of 90 ° or tank track, and in order to upper and lower stair, crawler belt 5 is the same with BOGEY WHEEL 16, makes with lightweight composite materials, adopts the crawler belt material of tank.

In conjunction with the accompanying drawings 1 to accompanying drawing 10 explanation embodiment of the present utility model:

Respectively establish a cover about this utility model drive mechanism, the occupant can shake advancing, stop, move back, changeing of handle 1 control wheelchair; When handle 1 shakes forward, the power of handle is through gear 2, by chain 3, power is transferred to and the co-axial sleeve 25 consubstantiality gear wheels 23 of preceding BOGEY WHEEL, the sleeve 25 of change speed gear box 19 combines and rotates with left side cover axis helical teeth, by the one-way clutch 32 of iron chains in gear 24 gear 24 is rotated power, by intermediary wheel 26 gear 27 is rotated, driving wheel 4 is rotated, and wheelchair advances; When handle 1 shook backward, sleeve 25 promoted on the inclined-plane to glide to the right, by the one-way clutch 32 of iron chains in gear 28 gear 28 is rotated backward, intermediary wheel 30 is rotated, thereby driven gear 31 rotate, and power is passed to driving wheel 4, make the wheelchair brake that halts, continue back crank handle 1 again, car load begins to retreat, if under retreating situation again before crank handle 1, it also is first brake, readvance, can shake right handles during left-hand bend, can shake left handle during right-hand bend; When last, in the time of downstairs, utilization is from motor-car weighing apparatus 6, when car body tilts forward and back, autobalance is connected motor 7 automatically, motor gear 21 is rotated make and carry on the tooth bar 8 or descend, the level that keeps seat, tooth bar 8 lower ends connect slip roller bearing 9, when tooth bar rises or descend, slip roller bearing 9 rises or descends along dead slot 10 pulling crawler belt bodies and BOGEY WHEEL 16, tooth bar 8 moves in backrest 11 hollow, when last, during certain the or level walking of descending slope, Pushpulll locking handle 12 lockable tooth bars 8, seat 15 is fixing with tooth bar 8, gear 21 forward or reverse of manual switch 13 may command motors make tooth bar 8 rise or descend, and finish upstairs or the function of going downstairs.

Claims

1, a kind of wheelchair of stair climbing, it is by handle (1), gear (2), chain (3), driving wheel (4), crawler belt (5), autobalance (6), motor (7), tooth bar (8), slip roller bearing (9), dead slot (10), backrest (11), Pushpulll locking handle (12), manual switch (13), armrest (14), seat (15), BOGEY WHEEL (16), regulating wheel (17), semiaxis (18), change speed gear box (19), handrail post (20), motor gear (21), motor connects axle (22), one-way clutch (32), accumulator formations such as (43), the front end that it is characterized in that seat (15) is provided with that the front-axle beam between the BOGEY WHEELs is connected before two supports (29) and two, the backrest (11) of seat (15) and motor (7), autobalance (6) is connected, autobalance (6) can be controlled and connect motor (7), motor gear (21) is driven carry on the tooth bar (8) or descends, tooth bar (8) rising part can be placed in backrest (11) hollow in; The Pushpulll locking handle (12) that is located at handrail (14) the both sides tooth bar (8) that can lock; Tooth bar (8) lower end connects slip roller bearing (9), slip roller bearing (9) along dead slot (10) and spur the crawler belt body and BOGEY WHEEL (16) on carry or descend; On seat front end two supports (29), be provided with handle (1), gear (2), chain (3), be provided with handrail (14), Pushpulll locking handle (12), manual switch (13), handrail post (29) at the seat dual side-edge; Each side be provided with (16) three of BOGEY WHEELs in the seat bottom, crawler belt (5), regulating wheel (17), driving wheel (14); On seat (15) left side, bottom support (29), be provided with accumulator (43), be provided with change speed gear box (19) and semiaxis (18) in chain (3) bottom.

2, according to the wheelchair of the described a kind of stair climbing of claim 1, it is characterized in that said autobalance (6) is connected with backrest (11), pointer (40) is located in the middle of two fixed carbon resisters (39), seat leans forward, pointer (40) under the use of pendulum (42) around the axle center (41) rotate contact and make the motor rotation with right side resistance, tooth bar (8) also moves thereupon.

3, according to the wheelchair of the described a kind of stair climbing of claim 1, it is characterized in that said change speed gear box (19), be by chain (3) power to be passed to the gear wheel (23) of sleeve (25) consubstantiality, when handle (1) when shaking forward, sleeve (25) combines and rotates with left side cover axis helical teeth, by the one-way clutch (32) of iron chains in gear (24) gear (24) is rotated, by intermediary wheel (26), driven gear (27) rotates, and driving wheel (4) is rotated, at this moment, wheelchair advances; When handle (1) shakes backward, sleeve (25) slides to the right and is set in the interior one-way clutch of gear (28) (32) and combines gear (28) is rotated backward, drive intermediary wheel (30), thereby gear (31) is passed to driving wheel (4) to power, and wheelchair is halted.

4, according to the wheelchair of the described a kind of stair climbing of claim 1, the tooth angle that it is characterized in that said crawler belt (5) is 90 °.