CN2154677Y - Wheelchair - Google Patents
Wheelchair Download PDFInfo
- Publication number
- CN2154677Y CN2154677Y CN 93211600 CN93211600U CN2154677Y CN 2154677 Y CN2154677 Y CN 2154677Y CN 93211600 CN93211600 CN 93211600 CN 93211600 U CN93211600 U CN 93211600U CN 2154677 Y CN2154677 Y CN 2154677Y
- Authority
- CN
- China
- Prior art keywords
- wheelchair
- wheel
- seat support
- crawler belt
- side plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Handcart (AREA)
Abstract
The utility model relates to a novel wheelchair which is provided with a caterpillar band device, a slope regulating device, a damping device, a caterpillar band angle regulating device, etc. The wheelchair has the functions of stepping stairs and crossing ditches. The wheel of the wheelchair is adjusted for climbing the stairs to make the caterpillar band device contact with ground, and a wheelchair seat tilts forward to make the gravity center move forward by using the slope regulating device. When the last step is climbed, the wheelchair is slowly returned back by the damping device. The wheelchair seat tilts backwards for going down stairs by using the slope regulating device. When the ditch is crossed, the wheelchair seat moves backward firstly. The wheelchair seat is moved forward to cross the ditch when the caterpillar device crosses over the ditch.
Description
This utility model relates to a kind of wheelchair, refer to especially a kind of can upper and lower stair and cross over the wheelchair in ditch.
The design of traditional wheelchair is at walking in flat road surface, yet just feels simply helpless when wanting upper and lower stair or crossing over the ditch, needs other people help.
The purpose of this utility model is that a kind of novel wheelchair will be provided, and it need not other people help, can upper and lower alone stair and leap ditch.
The purpose of this utility model is achieved in that in the both sides of seat support and is provided with main wheel, and its place ahead is provided with secondary wheel, and this pair wheel is provided with a condensation device.One guide groove is set on the wheelchair side plate, and downward rake is made at these guide groove two ends, and seat support can be slided thereon, is equipped with several fixing holes on each wheelchair side plate again, and seat support can borrow the holding bar to snap in location in this fixing hole.Be pivoted with crawler attachment on this wheelchair side plate, this crawler attachment becomes the suspention shape and is pivoted with main axis wheel with main wheel, be provided with guide bracket in the seat support bottom side, it on this guide bracket the guide block that sets firmly with main wheel, this guide block sets firmly the driving screw of an operating mechanism, this axis wheel and crawler belt group are pivoted with two drive sprockets and free sprocket wheel, and this free sprocket wheel is located on the guide bracket and between drive sprocket, can with drive chain crop rotation one from, cooperating of closing.The crawler belt group of this crawler attachment is positioned at one section of the forward and backward side of seat support by crawler belt angle-adjusting mechanism control, and the bottom of this seat support is provided with a buffer unit.The wheel that increases wheelchair when wheelchair is gone upstairs earlier makes crawler attachment contact with ground, relends inclination adjusting device and seat support is leaned forward and with center of gravity reach, by buffer unit wheelchair is just slowly being returned when walking to last step; Borrow inclination adjusting device to make the seat support layback when going downstairs; When crossing over the ditch, earlier seat support is moved to rear side, when treating that crawler attachment is on the ditch, again with the seat support reach and through the ditch.
This utility model adopts crawler attachment, and the angle of inclination that is positioned at the forward and backward side's of seat support an end crawler belt group can adjust, and it is beneficial to the upper and lower stair of wheelchair or crosses over the ditch.
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is the dynamic cut-away view in side of the present utility model.
Fig. 2 is a bottom planar view of the present utility model.
Fig. 3 is the part cut-away view that this utility model expands crawler attachment.
Fig. 4 is the sketch map that this utility model seat support moves on its chute.
Fig. 5 is the axonometric chart of the angle-adjusting mechanism of the forward and backward crawler belt of this utility model.
Fig. 6 is the side view of this utility model buffer unit.
Fig. 7 is the side view of this utility model buffer unit controller.
Fig. 8 and Fig. 9 are the sketch maps that this utility model is crossed over the ditch.
Figure 10 and Figure 11 are the sketch maps of the upper and lower stair of this utility model.
Figure 12 is the sketch map of another embodiment of this utility model.
This utility model mainly is made up of seat support (1), set of wheels (2), crawler attachment (3), condensation device (4) and buffer unit (5) etc.
As shown in Figures 1 to 4, this seat support (1) lower end is provided with pulley (11), this pulley (11) is inserted in the guide groove (61) of wheelchair side plate (6) and slidably, rake (611) is made at this guide groove (61) two ends, go up the solid holding bar (12) of living at seat support (1), the one end is connected with seat support (1) with spring, when seat support (1), is located in the fixing hole (62) that this holding bar (12) end can borrow the elastic force of spring to snap in wheelchair side plate (6) when sliding into a certain position at guide groove (61).
Set of wheels (2) is made up of the secondary wheel (22) in the main wheel (21) of being located at seat support (1) both sides and the place ahead, and wherein this main wheel (21) is provided with a rotor plate (211) and is used to promote main wheel (21) and advances.Be provided with a brake gear (7) in the appropriate location of main wheel (21).
Crawler attachment (3) is hubbed at wheelchair sidewall (6) and upward is the suspention shape with main wheel (21), its mainly by crawler belt group (30), downgrade group (31) and operating mechanism (32) is formed, this crawler belt group (30) has the crawler belt of grinding tooth by sprocket wheel (301,302) engaged transmission for medial and lateral, it is positioned at one section special elevation angle degree that form about 45 degree of wheel seat support (1) forward-and-rearward, the guiding when making things convenient for stair climbing.This downgrade group (31) comprise the guide bracket (311) that is fixed in seat support (1) bottom and can with this guide bracket (311) on, following slippage and the guide block (312) that is pivoted with this axis wheel (212), and respectively with crawler belt group (30), the drive sprocket (313 that axis wheel (212) is articulated, 315) and free sprocket wheel (314), this drive sprocket (313 wherein, 315) be to articulate by a pair of round chain (3131), this drive sprocket (315) rear side concentric place is provided with one second drive sprocket (316) again, its borrow a chain (3132) and with this crawler belt group (30) on sprocket wheel (301,302) be articulated and form a triangular shape transmission, and should fix with axis wheel (212) by free sprocket wheel (314), and be positioned at drive sprocket (313,315) between, borrow double pore chain bar (3131) and two drive sprockets (313,315) one of do the cooperation of clutch.Operating mechanism (32) is formed by one group of driving screw (321) again, it upward is control end that one end of this driving screw (321) becomes the rocking handle shape to be located at seat support (1), the other end and guide bracket (311) articulate, and end of this guide bracket (311) and aforesaid guide block (312) are affixed, a bevel gear (330) is pivoted on this driving screw (321), borrow a fulcrum to be connected to both sides, can be used for providing both sides driving screw (321) to do rotation simultaneously.Crawler belt group (30) is not in contact with the ground usually, in case in the time of must using, the turn driving screw (321) that can make progress makes guide block (312) together with the past superior displacement of free sprocket wheel (314), whole main wheel (21) also simultaneously by on move and crawler belt group (30) contacted with ground, rotating disk (211) control on borrower's wheel (21), the sprocket wheel (301,302) that is driven on the crawler belt group (30) by second drive sprocket (316) travels crawler belt.
In addition, secondary wheel (22) is gone up and is connected a retractor device (4), and the screw rod (40) that rotates this retractor device (4) can increase the height of secondary wheel (22).
As shown in Figure 5, the adjustable angle of the crawler belt group (30) of wheelchair rear and front end is whole, this angle-adjusting mechanism (33) comprises an action bars (331), drive rod (332), slide block (334), connecting rod (335) and driving belt (336) etc., wherein this action bars (331) front end is a rocking handle, but end articulates bevel gear and transmission drive rod (332) rotation, this drive rod (332) is fixed on the wheelchair side plate (6), its two ends are respectively equipped with forward and reverse screw thread (333), and being inserted in a slide block (334) respectively, this slide block (334) borrows connecting rod (335) to be connected with crawler belt group (30) before and after the wheelchair respectively.When user rotating operation bar (331), slide block (334) on the drive rod (332) is borrowed forward and reverse screw thread (333) at its two ends and can be moved in or out simultaneously, and borrow connecting rod (335) to adjust the angle of front and back crawler belt groups (30), be provided with a driving belt (336) again on the drive rod (332) in addition and be connected to the drive rod (332) of wheelchair opposite side so that it does synchronous transmission.
Again as shown in Figure 6 and Figure 7, buffer unit of the present utility model (5) mainly comprises a holder (51), pump (52), compression spring (53), on-slip bar (54) and controller (55).Wherein this holder (51) is fixed with the wheel seat base, pump (52) one ends and on-slip bar (54) are pivoted, the other end and this holder (51) set firmly, these on-slip bar (54) one ends are free end, the other end and holder (51) are pivoted, its side that contacts with ground is made zigzag to increase frictional force, controller (55) is by a control stick (551) again, steel wire (552), stop pin (553) and roller (554) are formed, wherein this steel wire (552) is surrounded on the roller (554), one end is positioned on this roller (554), the other end then is fixed in a substrate (555), when pulling stop pin (553) downwards, draw substrate (555) on this steel wire (552), because this substrate (555) is provided with the latch (556 of both direction inequality, 557), respectively on-slip bar (54) is done relative engaging with fixing head (558), in case this substrate (555) is by upward displacement, two latches (556,557) just breaking away from engaging falls on-slip bar (54), and cooperation pump (52), compression spring (53) etc. plays cushioning effect to the wheelchair stair activity, otherwise, control stick (551) is upwards pulled after pressing down the on-slip bar (54) that this latch (557) is sticked in, made another latch (556) engaging be positioned fixing head (558).
As Fig. 8 and shown in Figure 9, when this utility model travelled the ditch, earlier seat support (1) being moved backward makes center of gravity move to the wheelchair rear portion, borrow the crawler belt angular adjustment apparatus that the crawler belt group (30) before and after the wheelchair is transferred to horizontal level and contact with ground, after treating that forward crawler belt group (30) strides across the ditch, will take turns seat support again and move to the front to pass through the ditch.And for example Figure 10 and Figure 11 show, when this utility model is gone upstairs, earlier seat support (1) is adjusted to the forward rake of guide groove (61), make the center of gravity reach and make seat support (1) energy maintenance level in the process of creeping by crawler belt group (30), when waiting to climb to the stair of going up single order most, borrow buffer unit (5) just slowly returning, avoid whole wheelchair to make return rapidly and produce bump; When going downstairs, after making center of gravity, moves the rake that earlier seat support (1) is moved to guide groove (61) rear portion, and it is descending and slowly just returned by buffer unit to relend crawler belt group (30).
As shown in figure 12, this utility model can adopt electrodynamic type, motor (8) is fixed in the wheel seat base, drive a drive link (91) via a change speed gear box (9), this drive link (91) two ends articulate a clutch (92) respectively, driven crawler belt group (30) and crawler belt is advanced by this clutch (92), clutch (92) stops when separating.
Claims (5)
1, a kind of novel wheelchair, mainly by seat support, set of wheels, crawler attachment, condensation device and buffer unit are formed, this set of wheels comprises main wheel and secondary wheel, wherein main wheel is located at the both sides of seat support, secondary wheel is located at the place ahead of seat support, this pair wheel is provided with a condensation device, it is characterized in that this seat support lower end is provided with pulley, and insert in the guide groove of wheelchair side plate, crawler attachment is pivoted on this wheelchair side plate, this crawler attachment becomes the suspention shape and is pivoted with main axis wheel with main wheel, being provided with guide bracket in the seat support bottom side, is the guide block that sets firmly with main wheel on this guide bracket, and this guide block sets firmly the driving screw of an operating mechanism, this axis wheel and crawler belt group are pivoted with two drive sprockets and free sprocket wheel, and this free sprocket wheel is located on the guide bracket and between drive sprocket.
2, novel wheelchair according to claim 1, the crawler belt group that it is characterized in that this crawler attachment is positioned at one section of the forward and backward side of seat support and is controlled by a crawler belt angle-adjusting mechanism, drive rod work in this crawler belt angle-adjusting mechanism is located on the wheelchair side plate, two ends are provided with forward and reverse screw thread, and being inserted in a slide block respectively, this slide block is connected with the forward and backward crawler belt group of wheelchair respectively by connecting rod.
3, novel wheelchair according to claim 1, the two ends that it is characterized in that the guide groove of this wheelchair side plate are downward rake, this seat support cooperates spring to slip in the locating hole on this wheelchair side plate by the holding bar to locate.
4, novel wheelchair according to claim 1, the bottom that it is characterized in that this seat support is provided with a buffer unit, the holder of this buffer unit and wheelchair side plate set firmly, this holder sets firmly a pump again, this pump is pivoted with the on-slip stalk again, one end of this on-slip bar is a free end, the controller of this buffer unit is made up of control stick, control steel wire, latch and roller, wherein this steel wire is around being positioned on the roller, end is fixed in a substrate in addition, this substrate is provided with the latch of two direction inequalities, does relative engaging with on-slip bar and fixing head respectively.
5,, it is characterized in that the on-slip bar of this buffer unit is made zigzag by a side on ground according to claim 1 and 4 described novel wheelchairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211600 CN2154677Y (en) | 1993-05-10 | 1993-05-10 | Wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211600 CN2154677Y (en) | 1993-05-10 | 1993-05-10 | Wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2154677Y true CN2154677Y (en) | 1994-02-02 |
Family
ID=33793172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93211600 Expired - Fee Related CN2154677Y (en) | 1993-05-10 | 1993-05-10 | Wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2154677Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101810410A (en) * | 2010-04-14 | 2010-08-25 | 浙江豪中豪健康产品有限公司 | Seat frame mechanism capable of adjusting sitting posture |
| CN102715990A (en) * | 2012-04-11 | 2012-10-10 | 赵博 | Walking assistant robot |
| CN103961228A (en) * | 2013-01-24 | 2014-08-06 | 汤以润 | Method and equipment for enabling wheelchair to go up and down stairs |
| CN104644354A (en) * | 2015-03-04 | 2015-05-27 | 张志明 | Wheelchair capable of walking up and down stairs |
| CN104840311A (en) * | 2011-10-04 | 2015-08-19 | 李少麟 | Device comprising a chassis part and a crawler running gear |
| TWI599350B (en) * | 2016-11-14 | 2017-09-21 | Rear wheelchair dynamic adjustment device | |
| CN107773359A (en) * | 2016-08-30 | 2018-03-09 | 李治中 | Barrier free wheelchair car |
-
1993
- 1993-05-10 CN CN 93211600 patent/CN2154677Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101810410A (en) * | 2010-04-14 | 2010-08-25 | 浙江豪中豪健康产品有限公司 | Seat frame mechanism capable of adjusting sitting posture |
| CN101810410B (en) * | 2010-04-14 | 2012-04-25 | 浙江豪中豪健康产品有限公司 | Seat frame mechanism capable of adjusting sitting posture |
| CN104840311A (en) * | 2011-10-04 | 2015-08-19 | 李少麟 | Device comprising a chassis part and a crawler running gear |
| US9278036B2 (en) | 2011-10-04 | 2016-03-08 | Siu Lun Lee | Electric wheelchair |
| CN102715990A (en) * | 2012-04-11 | 2012-10-10 | 赵博 | Walking assistant robot |
| CN103961228A (en) * | 2013-01-24 | 2014-08-06 | 汤以润 | Method and equipment for enabling wheelchair to go up and down stairs |
| CN103961228B (en) * | 2013-01-24 | 2017-06-06 | 汤斌淞 | A kind of method and its equipment of wheelchair stair activity |
| CN104644354A (en) * | 2015-03-04 | 2015-05-27 | 张志明 | Wheelchair capable of walking up and down stairs |
| CN107773359A (en) * | 2016-08-30 | 2018-03-09 | 李治中 | Barrier free wheelchair car |
| CN107773359B (en) * | 2016-08-30 | 2019-08-13 | 李治中 | Barrier free wheelchair vehicle |
| TWI599350B (en) * | 2016-11-14 | 2017-09-21 | Rear wheelchair dynamic adjustment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |