CN203885738U - Wheelchair stair climbing device - Google Patents
Wheelchair stair climbing device Download PDFInfo
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- CN203885738U CN203885738U CN201420141507.4U CN201420141507U CN203885738U CN 203885738 U CN203885738 U CN 203885738U CN 201420141507 U CN201420141507 U CN 201420141507U CN 203885738 U CN203885738 U CN 203885738U
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- foot rest
- gear
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- power source
- rocking arm
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Abstract
The utility model relates to a wheelchair stair climbing device. The wheelchair stair climbing device comprises a power part, a gear chain transmission system and a stair climbing structure, wherein the power part comprises a power source and a power source driving gear; the gear chain transmission system comprises a device framework, a main transmission wheel shaft and a pair of driving gear chain mechanisms; the device framework comprises a framework body and a pair of gear chain supports; the main transmission wheel shaft comprises a main transmission shaft and a power source driven gear; the driving gear chain mechanisms comprise first-stage main transmission gears, second-stage main transmission gears, main transmission swing arms I and main transmission swing arms II; the stair climbing structure comprises a pair of stair climbing inner foot stands and a pair of stair climbing outer foot stands; the stair climbing inner foot stands comprise inner foot stand connecting rods, telescopic inner foot stand front legs and telescopic inner foot stand rear legs; the stair climbing outer foot stands comprise outer foot stand connecting rods, telescopic outer foot stand front legs and telescopic outer foot stand rear legs. According to the wheelchair stair climbing device disclosed by the utility model, two sets of four-leg foot stands are driven to do alternated forward ascending and descending motion by adopting a gear chain system, the structure is simple and reliable, and the use is safe and convenient.
Description
Technical field
This utility model relates to a kind of device of energy stair climbing, and particularly a kind of wheelchair stair-climbing device, belongs to wheelchair device field.
Background technology
At present, be applied in stair climbing system in wheelchair field and roughly can be divided into two kinds of lift and tyre types.Lift stair climbing system generally include can free-extension lifting wheel lower limb and the moving source block of driving wheel lower limb motion, for example application number is the disclosed device for wheel chair climbing stairway of patent document of 200720032234.X, this device for wheel chair climbing stairway comprises frame, lowering or hoisting gear and driving device, lowering or hoisting gear comprises the two poles of the earth lowering or hoisting gear that utilizes connecting rod to connect, this lowering or hoisting gear will lift wheelchair in the lump together with the user on it when work, be placed on single order stair, then cycling, reaches and wheelchair is transported to the object in building together with user.This lowering or hoisting gear has proposed comparatively harsh service condition to user, do not having under the condition of large power energy storage portion, user need to rely on manually reach lift whole wheelchair and and itself object, require great effort very much, and the difficult position of lifting the strong point of grasping, the longitudinal long and narrow profile that is limited to lowering or hoisting gear, device position of centre of gravity in operating process is higher, is prone to accidents.Application number is that 201120313580.1 patent document discloses wheel chair capable of climbing stairway, mainly comprises " ∩ " shape wheelchair lower limb and driving device rotatable, lifting, utilizes the alternately rotation transposition lifting of " ∩ " shape lower limb two supporting legs to reach the object of stair activity.Although this scheme is simple in structure, there is equally operating difficulties and accident prone problem.Tyre type stair climbing system generally includes train crawler attachment and driver part, and for example application number is 201320060557.5 the disclosed multi-functional stair-climbing wheel chair of patent document, and this crawler belt is climbed building system, stable, security performance is good, but complex structure, manufacturing cost is high.
Utility model content
This utility model wheelchair stair-climbing ladder device discloses new scheme, adopts wheel linkwork to drive two cover four legs and feet framves to do moving ahead of replacing and rises and descending motion, has solved the problem of wheelchair stair activity.
This utility model wheelchair stair-climbing ladder device comprises power part, chain power train He Pa building structure, and power part comprises power source and power source driving gear 110.Chain power train comprises device frame, main transmission wheel shaft and a pair of driving gear link chain mechanism being symmetrically arranged on device frame.Device frame comprises frame body 211 and a pair of symmetrical chain support 212 being fixed on frame body 211.Main transmission wheel shaft comprises that final drive shaft 221 and fixed cover are located at the power source driven gear 222 on final drive shaft 221.Driving gear link chain mechanism comprises I level main drive gear 231 and II level main drive gear 232, and the wheel disc both sides of II level main drive gear 232 are provided with main transmission rocking arm I233 and main transmission rocking arm II234.Climb building structure and comprise a pair of interior foot rest of cat ladder and a pair of outer foot rest of cat ladder that is arranged on device frame below that is arranged on device frame below, in above-mentioned a pair of cat ladder, foot rest is symmetrical along the axis of device frame, the outer foot rest of above-mentioned a pair of cat ladder is symmetrical along the axis of device frame, and the outer foot rest of above-mentioned a pair of cat ladder is distributed in foot rest outside in above-mentioned a pair of cat ladder.Foot rest comprises interior foot rest trace, is arranged on the scalable interior foot rest foreleg 311 of interior foot rest trace front end and is arranged on the scalable interior foot rest back leg 312 of interior foot rest trace rear end in cat ladder.The outer foot rest of cat ladder comprises outer foot rest trace, be arranged on the scalable outer foot rest foreleg 321 of outer foot rest trace front end and be arranged on the scalable outer foot rest back leg 322 of outer foot rest trace rear end.
Main transmission rocking arm I233 one end is fixedly connected with the wheel disc inner side of II level main drive gear 232, the main transmission rocking arm I233 other end is hinged with corresponding interior foot rest trace, main transmission rocking arm II234 one end is fixedly connected with the wheel disc outside of II level main drive gear 232, and the main transmission rocking arm II234 other end is hinged with corresponding outer foot rest trace.Power source is located at the final drive shaft 221 on chain support 212 by power source driving gear 110 and the chain drive bogie of power source driven gear 222, final drive shaft 221 drives fixed cover to be located at the I level main transmission output gear 231 at final drive shaft 221 two ends, I level main drive gear 231 is by chain-driving II level main drive gear 232, and II level main drive gear 232 moves by the stair climbing that rises and decline that moves ahead that in main transmission rocking arm I233 and main transmission rocking arm II234 drive cat ladder, foot rest and the outer foot rest of cat ladder are done alternately.
This utility model wheelchair stair-climbing ladder device employing wheel linkwork drives two cover four legs and feet framves to do move ahead rising and descending motion alternately, simple and reliable for structure, safe and convenient to use.
Accompanying drawing explanation
Fig. 1 is that this utility model wheelchair stair-climbing ladder device master looks schematic diagram.
Fig. 2 is Fig. 1 wheelchair stair-climbing ladder device schematic top plan view.
Fig. 3 is one of wheelchair stair-climbing ladder device modified model schematic top plan view.
Fig. 4 is the two main schematic diagrams of looking of wheelchair stair-climbing ladder device modified model.
Fig. 5 is Fig. 4 wheelchair stair-climbing ladder device schematic top plan view.
Fig. 6 is one of scalable foot rest lower limb embodiment schematic diagram.
Fig. 7 is two schematic diagrams of scalable foot rest lower limb embodiment.
Tu8Shi Pa building foot rest view.
Fig. 9 is cycle of operation original state schematic diagram of wheelchair stair-climbing ladder device.
Figure 10 is interim view of cycle of operation of wheelchair stair-climbing ladder device.
Figure 11 is cycle of operation done state schematic diagram of wheelchair stair-climbing ladder device.
In Fig. 1～11, the 110th, power source driving gear, the 211st, frame body, the 212nd, chain support, the 221st, final drive shaft, the 222nd, power source driven gear, the 231st, I level main drive gear, the 232nd, II level main drive gear, the 233rd, main transmission rocking arm I, the 234th, main transmission rocking arm II, the 241st, driven input gear, the 242nd, I level driven gear, the 243rd, II level driven gear, the 244th, III level driven gear, the 245th, driven rocking arm I, the 246th, driven rocking arm II, the 311st, scalable interior foot rest foreleg, the 312nd, scalable interior foot rest back leg, the 321st, scalable outer foot rest foreleg, the 322nd, scalable outer foot rest back leg, the 331st, foot rest motor, the 332nd, foot rest motor-driven gear, the 333rd, screw drive gear, the 334th, screw rod lower limb, the 335th, hydraulic cavities, the 341st, interior foot rest interlock reinforcing crossmember.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As illustrated in fig. 1 and 2, this utility model wheelchair stair-climbing ladder device schematic diagram.Wheelchair stair-climbing ladder device comprises power part, chain power train He Pa building structure.
Power part comprises power source and power source driving gear 110.The power source of this programme can adopt mode manually, also can adopt the mode of driven by motor.When the scheme adopting manually, can select the general design in this area, specifically power source is manual runner parts, the input of runner parts is the winds that are fixed on runner edge, the outfan of runner parts and power source driving gear 110 are in transmission connection, and user manual rotation runner parts drive the 110 output transmissions of power source driving gear.When adopting the scheme of driven by motor, can select the general design in this area, specifically power source is motor, the outfan of motor and power source driving gear 110 are in transmission connection, and open the 110 output transmissions of driven by motor power source driving gear.In adopting the scheme of driven by motor, in order to stablize the output of motor, the guiding mechanism speed of service, power part can also comprise reduction gear box, the outfan of motor and the input of reduction gear box are in transmission connection by chain, and the outfan of reduction gear box and power source driving gear 110 are in transmission connection.The power source of this programme is not limited to above two kinds, can also be other power set under certain applications, for example internal combustion engine.
Chain power train comprises device frame, main transmission wheel shaft and a pair of driving gear link chain mechanism being symmetrically arranged on device frame.Device frame comprises frame body 211 and a pair of symmetrical chain support 212 being fixed on frame body 211.Main transmission wheel shaft comprises that final drive shaft 221 and fixed cover are located at the power source driven gear 222 on final drive shaft 221.Driving gear link chain mechanism comprises I level main drive gear 231 and II level main drive gear 232, and the wheel disc both sides of II level main drive gear 232 are provided with main transmission rocking arm I233 and main transmission rocking arm II234.This programme is not limited to the kind of drive of said gear chain, can also be other kind of drive, for example gear drive and gear worm transmission.
Climb building structure and comprise a pair of interior foot rest of cat ladder and a pair of outer foot rest of cat ladder that is arranged on device frame below that is arranged on device frame below, in above-mentioned a pair of cat ladder, foot rest is symmetrical along the axis of device frame, the outer foot rest of above-mentioned a pair of cat ladder is symmetrical along the axis of device frame, and the outer foot rest of above-mentioned a pair of cat ladder is distributed in foot rest outside in above-mentioned a pair of cat ladder.In order to strengthen the linkage between foot rest and relative steadiness in above-mentioned a pair of cat ladder, this programme has also been introduced reinforcement feature, specifically in above-mentioned a pair of cat ladder, between the interior foot rest trace of foot rest, be provided with interior foot rest interlock reinforcing crossmember 341, in above-mentioned a pair of cat ladder, foot rest is by 341 synchronous interactions of interior foot rest interlock reinforcing crossmember.
Foot rest comprises interior foot rest trace, is arranged on the scalable interior foot rest foreleg 311 of interior foot rest trace front end and is arranged on the scalable interior foot rest back leg 312 of interior foot rest trace rear end in cat ladder.The outer foot rest of cat ladder comprises outer foot rest trace, be arranged on the scalable outer foot rest foreleg 321 of outer foot rest trace front end and be arranged on the scalable outer foot rest back leg 322 of outer foot rest trace rear end.Above-mentioned foot rest trace can be the telescopic composite transverse beam structure of hollow, in the situation that staircase distance is larger, takes extension elongation foot rest trace, in the situation that staircase distance is less, can compress foot rest trace.In this programme, in order to facilitate foot rest stair activity, dwindle the overall dimensions of structure, before and after foot rest, lower limb can adopt the scheme of different size, as shown in Figure 8, non-telescoping section of scalable interior foot rest foreleg 311 non-telescoping section of being shorter than scalable interior foot rest back leg 312 specifically, non-telescoping section of non-telescoping section of being shorter than scalable outer foot rest back leg 322 of scalable outer foot rest foreleg 321.The stability contacting with ground in order to strengthen structure, prevent from sliding easily between structure and ground, the scalable interior foot rest foreleg 311 of this programme, scalable interior foot rest back leg 312, scalable outer foot rest foreleg 321 and scalable outer foot rest back leg 322 are installed with anti-skid rubber cushion with the contact jaw on ground.
This programme also discloses the implementation of above-mentioned scalable foot rest lower limb, specifically can adopt gear screw drive and hydraulic drive scheme.
Embodiment mono-
As shown in Figure 6, the telescopic mechanism of scalable interior foot rest foreleg 311, scalable interior foot rest back leg 312, scalable outer foot rest foreleg 321 and scalable outer foot rest back leg 322 is electric gear screw actuators, electric gear screw actuator comprises foot rest motor 331, foot rest motor-driven gear 332, screw drive gear 333 and screw rod lower limb 334, foot rest motor 331 drives screw drive gear 333 by foot rest motor-driven gear 332, and screw drive gear 333 is by doing and rise or descending motion with the inside and outside drive screw rod lower limb 334 that is tiltedly threaded of screw rod lower limb 334.
Embodiment bis-
As shown in Figure 7, scalable interior foot rest foreleg 311, scalable interior foot rest back leg 312, the telescopic mechanism of scalable outer foot rest foreleg 321 and scalable outer foot rest back leg 322 is electric hydaulic screw actuators, electric hydaulic screw actuator comprises foot rest motor 331, foot rest motor-driven gear 332, screw drive gear 333, screw rod lower limb 334 and hydraulic cavities 335, screw rod lower limb 334 lower ends are provided with the piston with hydraulic cavities 335 inner airtight hydraulic connectings, foot rest motor 331 drives screw drive gear 333 by foot rest motor-driven gear 332, screw drive gear 333 is by doing and rise or descending motion with the inside and outside drive screw rod lower limb 334 that is tiltedly threaded of screw rod lower limb 334.
Main transmission rocking arm I233 one end is fixedly connected with the wheel disc inner side of II level main drive gear 232, the main transmission rocking arm I233 other end is hinged with corresponding interior foot rest trace, main transmission rocking arm II234 one end is fixedly connected with the wheel disc outside of II level main drive gear 232, and the main transmission rocking arm II234 other end is hinged with corresponding outer foot rest trace.Power source is located at the final drive shaft 221 on chain support 212 by power source driving gear 110 and the chain drive bogie of power source driven gear 222, final drive shaft 221 drives fixed cover to be located at the I level main transmission output gear 231 at final drive shaft 221 two ends, I level main drive gear 231 is by chain-driving II level main drive gear 232, and II level main drive gear 232 moves by the stair climbing that rises and decline that moves ahead that in main transmission rocking arm I233 and main transmission rocking arm II234 drive cat ladder, foot rest and the outer foot rest of cat ladder are done alternately.As shown in Figure 8, cat ladder foot rest on level land, the view of the first rank stair and staircase, in figure during the state of level land, the scalable portion of the forward foot in a step extends with the rear foot and supports ground simultaneously, during the first rank stair state, the scalable portion of the forward foot in a step retracts and sets foot on the first rank stair, and during staircase state, the scalable portion of the rear foot extends to realize and supports across rank.As shown in Fig. 9～11, wheelchair stair-climbing ladder device is in the view of the initial, interim of a cycle of operation and end.As shown in Figure 9, inside and outside cat ladder foot rest is all in staircase state, the forward foot in a step of interior cat ladder foot rest and rear foot portion other places are at IV rank and stair place, II rank, the forward foot in a step of outer cat ladder foot rest and rear foot portion other places are at III rank and stair place, I rank, now, outer cat ladder foot rest upwards lifts forward under the rotarily driving of endless chain and rocking arm, as shown in figure 10, finally move to higher level's step place, as shown in figure 11, the forward foot in a step of interior cat ladder foot rest and rear foot portion other places are at IV rank and stair place, II rank, the forward foot in a step of outer cat ladder foot rest and rear foot portion other places are at V rank and stair place, III rank, so circulation, realize the technical purpose of stair activity.User is when being used stair-climbing device, and the road wheel that only need utilize wheelchair both sides to carry is moved to entry to the stair or exit, and source block then turns on the power.
In order to strengthen the effectiveness of chain mechanism driving, this programme can also be set up driven gear link chain mechanism on the basis of above-mentioned driving gear link chain mechanism scheme, specifically device frame also comprises that another is to the symmetrical chain support 212 being fixed on frame body 211, chain power train also comprises a pair of driven gear link chain mechanism being symmetrically arranged on device frame, driven gear link chain mechanism comprises that fixed cover is located at the driven input gear 241 at final drive shaft 221 two ends, I level driven gear 242, II level driven gear 243 and III level driven gear 244, the wheel disc both sides of III level driven gear 244 are provided with driven rocking arm I245 and driven rocking arm II246.Driven rocking arm I245 one end is fixedly connected with the wheel disc inner side of III level driven gear 244, the driven rocking arm I245 other end is hinged with corresponding interior foot rest trace, driven rocking arm II246 one end is fixedly connected with the wheel disc outside of III level driven gear 244, and the driven rocking arm II246 other end is hinged with corresponding outer foot rest trace.Power source is by driven input gear 241 and be erected at above-mentioned another driving of chain drive to the I level driven gear 242 on chain support 212 and the co-axially fixed II level driven gear 243 of I level driven gear 242, II level driven gear 243 is by chain-driving III level driven gear 244, and III level driven gear 244 is done synchronous stair climbing by foot rest and the outer foot rest of cat ladder in driven rocking arm I245 and driven rocking arm II246 drive cat ladder and moved.The other chain support that this programme is introduced and driven gear link chain mechanism are not limited to above-mentioned a pair of, also can be according to two pairs of plant bulk introducings in practical application, three equities even.More than improve whole mechanism kinematic is coordinated more, stability is better.
This utility model wheelchair stair-climbing ladder device adopts wheel linkwork and two exclusive cover four legs and feet frame systems to realize the object of wheelchair stair activity.By regulating the length of foot rest trace can make this utility model be applied in the case of any stairway width, two cover four legs and feet shelf structures make the middle position of the center of gravity of device in structure, structure is accident-proneness not at the volley, compares existing wheelchair stair-climbing ladder device and has substantive distinguishing features and progress.
The wheelchair stair-climbing ladder device of this programme is not limited to the disclosed content of embodiment, the technical scheme occurring in embodiment can individualism, also can mutually comprise, the simple alternative that those skilled in the art make in conjunction with common practise according to this programme also belongs to the scope of this programme.
Claims (10)
1. wheelchair stair-climbing ladder device, is characterized in that comprising power part, chain power train He Pa building structure, and described power part comprises power source and power source driving gear (110);
Described chain power train comprises device frame, main transmission wheel shaft and a pair of driving gear link chain mechanism being symmetrically arranged on described device frame; Described device frame comprises frame body (211) and a pair of symmetrical chain support (212) being fixed on frame body (211); Described main transmission wheel shaft comprises that final drive shaft (221) and fixed cover are located at the power source driven gear (222) on final drive shaft (221); Described driving gear link chain mechanism comprises I level main drive gear (231) and II level main drive gear (232), and the wheel disc both sides of II level main drive gear (232) are provided with main transmission rocking arm I (233) and main transmission rocking arm II (234);
The described building structure of climbing comprises a pair of interior foot rest of cat ladder and a pair of outer foot rest of cat ladder that is arranged on described device frame below that is arranged on described device frame below, in described a pair of cat ladder, foot rest is symmetrical along the axis of described device frame, the outer foot rest of described a pair of cat ladder is symmetrical along the axis of described device frame, and the outer foot rest of described a pair of cat ladder is distributed in foot rest outside in described a pair of cat ladder; Foot rest comprises interior foot rest trace, is arranged on the scalable interior foot rest foreleg (311) of described interior foot rest trace front end and is arranged on the scalable interior foot rest back leg (312) of described interior foot rest trace rear end in described cat ladder; The outer foot rest of described cat ladder comprises outer foot rest trace, be arranged on the scalable outer foot rest foreleg (321) of described outer foot rest trace front end and be arranged on the scalable outer foot rest back leg (322) of described outer foot rest trace rear end;
Main transmission rocking arm I (233) one end is fixedly connected with the wheel disc inner side of II level main drive gear (232), main transmission rocking arm I (233) other end is hinged with corresponding described interior foot rest trace, main transmission rocking arm II (234) one end is fixedly connected with the wheel disc outside of II level main drive gear (232), and main transmission rocking arm II (234) other end is hinged with corresponding described outer foot rest trace, described power source is located at the final drive shaft (221) on chain support (212) by power source driving gear (110) and the chain drive bogie of power source driven gear (222), final drive shaft (221) drives fixed cover to be located at the I level main transmission output gear (231) at final drive shaft (221) two ends, I level main drive gear (231) is by chain-driving II level main drive gear (232), the stair climbing that rises and decline that moves ahead that II level main drive gear (232) drives the interior foot rest of described cat ladder and the outer foot rest of cat ladder to do alternately by main transmission rocking arm I (233) and main transmission rocking arm II (234) moves.
2. wheelchair stair-climbing ladder device according to claim 1, it is characterized in that, described device frame also comprises that another is to the symmetrical chain support (212) being fixed on frame body (211), described chain power train also comprises a pair of driven gear link chain mechanism being symmetrically arranged on described device frame, described driven gear link chain mechanism comprises that fixed cover is located at the driven input gear (241) at final drive shaft (221) two ends, I level driven gear (242), II level driven gear (243) and III level driven gear (244), the wheel disc both sides of III level driven gear (244) are provided with driven rocking arm I (245) and driven rocking arm II (246),
Driven rocking arm I (245) one end is fixedly connected with the wheel disc inner side of III level driven gear (244), driven rocking arm I (245) other end is hinged with corresponding described interior foot rest trace, driven rocking arm II (246) one end is fixedly connected with the wheel disc outside of III level driven gear (244), and driven rocking arm II (246) other end is hinged with corresponding described outer foot rest trace; Described power source is by driven input gear (241) and be erected at described another driving of chain drive to the I level driven gear (242) on chain support (212) and I level driven gear (242) co-axially fixed II level driven gear (243), II level driven gear (243) is by chain-driving III level driven gear (244), and III level driven gear (244) drives the interior foot rest of described cat ladder and the outer foot rest of cat ladder to do synchronous stair climbing motion by driven rocking arm I (245) and driven rocking arm II (246).
3. wheelchair stair-climbing ladder device according to claim 1 and 2, it is characterized in that, described power source is manual runner parts, the input of described runner parts is the winds that are fixed on described runner edge, the outfan of described runner parts and power source driving gear (110) are in transmission connection, and runner parts drive power source driving gears (110) output transmission described in user manual rotation.
4. wheelchair stair-climbing ladder device according to claim 1 and 2, it is characterized in that, described power source is motor, and the outfan of described motor and power source driving gear (110) are in transmission connection, and opens driven by motor power source driving gear (110) output transmission.
5. wheelchair stair-climbing ladder device according to claim 4, it is characterized in that, described power part also comprises reduction gear box, the outfan of described motor and the input of described reduction gear box are in transmission connection by chain, and the outfan of described reduction gear box and power source driving gear (110) are in transmission connection.
6. wheelchair stair-climbing ladder device according to claim 1 and 2, it is characterized in that, scalable interior foot rest foreleg (311), scalable interior foot rest back leg (312), the telescopic mechanism of scalable outer foot rest foreleg (321) and scalable outer foot rest back leg (322) is electric gear screw actuator, described electric gear screw actuator comprises foot rest motor (331), foot rest motor-driven gear (332), screw drive gear (333) and screw rod lower limb (334), foot rest motor (331) drives screw drive gear (333) by foot rest motor-driven gear (332), screw drive gear (333) is by doing and rise or descending motion with the inside and outside drive screw rod lower limb (334) that is tiltedly threaded of screw rod lower limb (334).
7. wheelchair stair-climbing ladder device according to claim 1 and 2, it is characterized in that, scalable interior foot rest foreleg (311), scalable interior foot rest back leg (312), the telescopic mechanism of scalable outer foot rest foreleg (321) and scalable outer foot rest back leg (322) is electric hydaulic screw actuator, described electric hydaulic screw actuator comprises foot rest motor (331), foot rest motor-driven gear (332), screw drive gear (333), screw rod lower limb (334) and hydraulic cavities (335), screw rod lower limb (334) lower end is provided with the piston with the inner airtight hydraulic connecting of hydraulic cavities (335), foot rest motor (331) drives screw drive gear (333) by foot rest motor-driven gear (332), screw drive gear (333) is by doing and rise or descending motion with the inside and outside drive screw rod lower limb (334) that is tiltedly threaded of screw rod lower limb (334).
8. wheelchair stair-climbing ladder device according to claim 1 and 2, it is characterized in that, scalable interior foot rest foreleg (311), scalable interior foot rest back leg (312), scalable outer foot rest foreleg (321) and scalable outer foot rest back leg (322) are installed with anti-skid rubber cushion with the contact jaw on ground.
9. wheelchair stair-climbing ladder device according to claim 1 and 2, it is characterized in that, non-telescoping section of non-telescoping section of being shorter than scalable interior foot rest back leg (312) of scalable interior foot rest foreleg (311), non-telescoping section of non-telescoping section of being shorter than scalable outer foot rest back leg (322) of scalable outer foot rest foreleg (321).
10. wheelchair stair-climbing ladder device according to claim 1 and 2, it is characterized in that, in described a pair of cat ladder, between the interior foot rest trace of foot rest, be provided with interior foot rest interlock reinforcing crossmember (341), in described a pair of cat ladder, foot rest is by the synchronous interaction of interior foot rest interlock reinforcing crossmember (341).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141507.4U CN203885738U (en) | 2014-03-27 | 2014-03-27 | Wheelchair stair climbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141507.4U CN203885738U (en) | 2014-03-27 | 2014-03-27 | Wheelchair stair climbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203885738U true CN203885738U (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420141507.4U Expired - Fee Related CN203885738U (en) | 2014-03-27 | 2014-03-27 | Wheelchair stair climbing device |
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| CN (1) | CN203885738U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105581877A (en) * | 2016-02-19 | 2016-05-18 | 浙江大学昆山创新中心 | Wheelchair robot beneficial to obstacle surmounting |
| CN105726231A (en) * | 2016-01-25 | 2016-07-06 | 郑清荣 | Marching type stair-climbing wheelchair of telescopic arm structure |
| CN106691724A (en) * | 2016-11-30 | 2017-05-24 | 广西大学 | Imitated human foot type stair-climbing wheelchair |
| CN108821163A (en) * | 2018-04-25 | 2018-11-16 | 国家电网公司 | ladder type power equipment transfer device |
| CN110916918A (en) * | 2019-12-09 | 2020-03-27 | 河海大学常州校区 | Multifunctional stepping barrier-free wheelchair |
| CN111938934A (en) * | 2020-08-19 | 2020-11-17 | 郑州铁路职业技术学院 | Wheelchair for medical care convenient to go up and down stairs |
| CN113397850A (en) * | 2021-07-28 | 2021-09-17 | 谷晓强 | Wheelchair capable of climbing stairs |
-
2014
- 2014-03-27 CN CN201420141507.4U patent/CN203885738U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726231A (en) * | 2016-01-25 | 2016-07-06 | 郑清荣 | Marching type stair-climbing wheelchair of telescopic arm structure |
| CN105581877A (en) * | 2016-02-19 | 2016-05-18 | 浙江大学昆山创新中心 | Wheelchair robot beneficial to obstacle surmounting |
| CN105581877B (en) * | 2016-02-19 | 2017-09-12 | 浙江大学昆山创新中心 | A kind of wheel chair robot for being easy to obstacle detouring |
| CN106691724A (en) * | 2016-11-30 | 2017-05-24 | 广西大学 | Imitated human foot type stair-climbing wheelchair |
| CN106691724B (en) * | 2016-11-30 | 2018-06-15 | 广西大学 | A kind of apery foot formula stair climbing wheelchair |
| CN108821163A (en) * | 2018-04-25 | 2018-11-16 | 国家电网公司 | ladder type power equipment transfer device |
| CN110916918A (en) * | 2019-12-09 | 2020-03-27 | 河海大学常州校区 | Multifunctional stepping barrier-free wheelchair |
| CN110916918B (en) * | 2019-12-09 | 2022-03-01 | 河海大学常州校区 | Multifunctional stepping barrier-free wheelchair |
| CN111938934A (en) * | 2020-08-19 | 2020-11-17 | 郑州铁路职业技术学院 | Wheelchair for medical care convenient to go up and down stairs |
| CN111938934B (en) * | 2020-08-19 | 2022-09-02 | 郑州铁路职业技术学院 | Wheelchair for medical care convenient to go up and down stairs |
| CN113397850A (en) * | 2021-07-28 | 2021-09-17 | 谷晓强 | Wheelchair capable of climbing stairs |
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