CN203381672U - Crawler type stair climbing barrow - Google Patents
Crawler type stair climbing barrow Download PDFInfo
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- CN203381672U CN203381672U CN201320300853.8U CN201320300853U CN203381672U CN 203381672 U CN203381672 U CN 203381672U CN 201320300853 U CN201320300853 U CN 201320300853U CN 203381672 U CN203381672 U CN 203381672U
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- wheel
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- cart
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Abstract
The utility model relates to a crawler type stair climbing barrow, which comprises a frame, wherein the frame is divided into a front section and a rear section, the front section is upwards warped, the frame is provided with a walking system and a handrail, the walking system comprises a first power system, a drive wheel, a crawler, a driven wheel and a tensioning wheel, and the drive wheel and the driven wheel are arranged at the front end and the rear end of the frame respectively, and are transmitted by the crawler. The crawler type stair climbing barrow is characterized in that the joint of the front end and the rear end of the frame is also provided with a transition wheel, a crawler support plate is arranged between the drive wheel and the transition wheel and/or between the transition wheel and the driven wheel, and the crawler support plate is fixedly arranged on the frame to be contacted with the crawler. The crawler type stair climbing barrow has the beneficial effects that dual purposes of stairs and level roads are realized while the service life of the crawler is greatly prolonged, the application range of the stair climbing barrow is enlarged, greater convenience is brought for a user, and the barrow is safe and reliable.
Description
Technical field
The utility model relates to a kind of accessible climbing apparatus, especially a kind of Caterpillar stair climbing cart.
Background technology
Climb at present the building equipment and technology both at home and abroad: the stair climbing jacking system in wheels formula, legged, crawler type, specialized range.Although climbing building equipment, these all have advantages of separately.But weak point is also arranged.
Wheels formula: use the number of steamboat can be divided into two wheels formulas, three wheels formulas and four-wheel group formula and many wheel level formulas in wheels.The stairs climbing device of wheels formula stair climbing wheelchair consists of several steamboats that are evenly distributed on " Y " shape or "+" font tie-rod.Each steamboat both can be around axis rotation separately, again can be along with tie-rod revolves round the sun around center shaft together.When level walking, each steamboat rotation, and during stair climbing, each steamboat revolves round the sun together, thereby realizes the function of stair climbing.In single-wheel group formula knot less stable ，Pa building process, need someone to assist the stable of guarantee center of gravity; Though, and two-wheel group formula can realize self-determination climbing stairs, because it is bulky and lay particular stress on, affected its range of use.In advancing, use can produce certain effect at heart of fearing.
Legged: its stair climbing actuating unit is comprised of hinge rod member mechanism.First heavy burden is raised in the time of upstairs, then level moves forward, so repeat these two processes until climbed a flight of stairs.Legged stair-climbing device imitates the action that the mankind climb building, and outward appearance can be considered legged type robot, adopts many pedipulators to replace the principle that building is climbed in lifting, supporting chair.When legged stair-climbing device is climbed building, motion steadily, is applicable to the stair of different size; But it is very high to the requirement of controlling, the operation more complicated, when level walking, motion amplitude is little, slow in one's movements.
Crawler type: the principle of stair-climbing device is similar to crawler belt armored personnel carrier or tank, its principle is simple, and technology is comparative maturity also, and the stair climbing wheelchair application of caterpillar type mechanism is more, it adopts the walking manner more more continuous than star-like wheel mechanism, and driving efficiency is higher.In the stair activity process, it is straight-line that the center of gravity of wheelchair always parallels along the line with the stairway step edge, and the fluctuation of its center of gravity is very little, moves very steady.But the existing equipment appeared on the market.Complex structure, the cost cost is high.Sale price of market surpasses the ability to accept scope from the customer far away.
No matter be any cart for travelling up or down stairs, all can not have greatly dwindled the range of use of cart for travelling up or down stairs at level walking, also to the user, bring great inconvenience simultaneously.Simultaneously, crawler belt, in the stair climbing process, due to larger spacing being arranged between stairway step, makes crawler belt that larger distortion be arranged, and has greatly shortened the life-span of crawler belt.
The utility model content
In order to address the above problem, the utility model has designed a kind of cart for travelling up or down stairs, when greatly extending crawler belt service life, realizes the dual-purpose of stair and level road, has enlarged the range of use of cart for travelling up or down stairs, and it is larger convenient to the user, to bring.
The technical solution of the utility model is:
A kind of cart for travelling up or down stairs, comprise vehicle frame, and vehicle frame divides two sections of front and back, and leading portion is tilted upward, and is provided with running gear and handrail on vehicle frame;
Described running gear comprises the first power system, driving wheel, crawler belt, flower wheel and expansion tightening wheel, and driving wheel and flower wheel are separately positioned on the front and back end of vehicle frame, pass through crawler haulage; Junction, described vehicle frame rear and front end also is provided with transition wheel, between driving wheel and transition wheel and or transition wheel and flower wheel between be provided with the crawler belt supporting plate, the crawler belt supporting plate is fixed on vehicle frame and contacts with crawler belt.
As preferred version, described the first power system comprises the first motor, the first turbine and worm mechanism, the first motor passes through the first turbine and worm mechanism to the driving wheel transmission, the turbine of the first turbine and worm mechanism is fixedly connected with the first machine shaft, driving wheel respectively with worm screw, but the self-locking of described the first turbine and worm mechanism.
As preferred version, described running gear also comprises the implementation part, comprise with two groups of front and back and carry out wheel, and the second Locking Device of parallelogram lindage and locking parallelogram lindage position, described implementation wheel is arranged on the end of four-bar mechanism rocking bar.
As preferred version, described the second Locking Device comprises second motor hinged with vehicle frame, the second worm-and-wheel gear, the second motor is fixedly connected with the turbine of the second turbine and worm mechanism, the end of the worm screw of the second turbine and worm mechanism and one of them rocking bar of parallelogram lindage are hinged, but the self-locking of described the second turbine and worm mechanism.
As preferred version, the trailing wheel of described implementation wheel is arranged on the inboard of cross member of frame, and front-wheel is arranged on the outside of cross member of frame.
As preferred version, the front-wheel of described implementation wheel is cardan wheel.
As preferred version, described handrail and vehicle frame are rotationally connected, and pass through the 3rd lockable mechanism fixed armrest swing position between vehicle frame and handrail.
As preferred version, described the 3rd lockable mechanism comprises three motor hinged with vehicle frame, the 3rd turbine and worm mechanism, and the 3rd motor is fixedly connected with the turbine of the 3rd turbine mechanism, an end and the handrail of the worm screw of the 3rd turbine and worm mechanism are hinged, but the self-locking of described the 3rd turbine and worm mechanism.
As preferred version, the described crawler belt outside is zigzag structure, and the value of angle α, the β of profile of tooth both sides and crawler belt groove is respectively 125 °～135 °, 80 °～95 °.
Course of action of the present utility model:
When level road is walked, start the second motor, the second driven by motor turbine rotation, worm screw is flexible under the drive of turbine, thereby the rocking bar of controlling the parallelogram lindage of carrying out part swings, when to ad-hoc location, (crawler belt breaks away from ground, the relative bottom surface of rocking bar is vertical), close the second motor, thereby turbine stops operating, because turbine and worm has self-locking work, therefore, in the situation that turbine stops operating, worm screw can not stretch, the rocking bar of parallelogram lindage also is fixed, the people promotes handrail, and cart for travelling up or down stairs can be walked on level road; When the cart for travelling up or down stairs front end contacts with stairway step, starter motor drives the rocking bar revolution of four-bar mechanism, packs up and carries out wheel, external tooth and the stairway step of crawler belt block, and start the first motor, by the turbine and worm transmission, drive driving wheel, thereby drive the crawler belt tradition, cart for travelling up or down stairs starts to climb building.When adjusting the handrail angle, start the 3rd motor, by the turbine and worm tradition, thereby stretching, worm screw adjusts the angle of handrail, be convenient to carry out and install wheelchair.
The utility model has the advantage of:
1, due to the crawler belt installed inside in crawler belt supporting plate ，Pa building process, crawler belt iron prop supporting plate, just face because the large spacing of stairway step causes the crawler belt gross distortion, thereby extended the service life of crawler belt;
2, due to first motor by turbine and worm to the driving wheel tradition, and turbine and worm has auto-lock function, in Ru Pa building process, power supply can not be powered, turbine and worm mechanism can be locked driving wheel, avoids safety misadventure;
3, owing to being provided with the implementation part, can make cart for travelling up or down stairs carry out on level road, greatly alleviate user's heavy burden;
4, owing to using the turbine and worm transmission to control the angle of carrying out wheel, handrail, thus the position of locked implementation wheel, handrail, it is convenient to control, and locking is reliable, and structure is also very tightly short;
5, the profile of tooth angle of crawler belt of the present invention outside tooth is controlled at particular range, and while guaranteeing to climb building, link closely with stairway step in one side of the tooth of crawler belt, guarantees the safety in Liao Pa building;
6, owing to being provided with transition wheel, effectively avoided the friction of crawler belt at vehicle frame knuckle place, extended the service life of crawler belt.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The accompanying drawing explanation
The structural representation that Fig. 1 is the utility model cart for travelling up or down stairs;
Fig. 2 is the structural representation that the utility model cart for travelling up or down stairs is carried out part;
Fig. 3 is the utility model apron wheel of stair climbing vehicle local structural graph.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the utility model, is not limited to the utility model.
Below preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
Illustrate concrete structure of the present invention in conjunction with Fig. 1, Fig. 2, Fig. 3:
A kind of cart for travelling up or down stairs, comprise vehicle frame 1, and vehicle frame divides two sections of front and back, and leading portion is tilted upward, and is provided with running gear and handrail 11 on vehicle frame;
Described running gear comprises the first power system 1, driving wheel 2, crawler belt 5, flower wheel 4 and expansion tightening wheel 6, and driving wheel 2 and flower wheel 4 are separately positioned on the front and back end of vehicle frame 1, by crawler belt 5 transmissions; Described vehicle frame 1 junction, rear and front end also is provided with transition wheel 3, between driving wheel 2 and transition wheel 3 and or transition wheel 3 and flower wheel 4 between be provided with crawler belt supporting plate 7, crawler belt supporting plate 7 is fixed on vehicle frame 1 and contacts with crawler belt.
Described the first power system 1 comprises the first motor, the first turbine and worm mechanism, the first motor passes through the first turbine and worm mechanism to the driving wheel transmission, the turbine of the first turbine and worm mechanism is fixedly connected with the first machine shaft, driving wheel 2 respectively with worm screw, but the self-locking of described the first turbine and worm mechanism.
Described running gear also comprises the implementation part, comprises with two groups of front and back and carries out wheel, and the second Locking Device of parallelogram lindage and locking parallelogram lindage position, described implementation wheel is arranged on the end of four-bar mechanism rocking bar; Described the second Locking Device comprises second motor hinged by bearing pin 15 and vehicle frame, the second worm-and-wheel gear, the second motor is fixedly connected with the turbine of the second turbine and worm mechanism, one of them rocking bar 18 of the end of the worm screw 13 of the second turbine and worm mechanism and parallelogram lindage is hinged, but the self-locking of described the second turbine and worm mechanism; The trailing wheel 12 of described implementation wheel is arranged on the inboard of vehicle frame 1 crossbeam, and front-wheel 9 is arranged on the outside of vehicle frame 1 crossbeam, and front-wheel 9 is cardan wheel, and the bearing 10 of front-wheel 9 is fixedly connected with rocking bar 18, and the connecting rod 16 of parallel screw body connects front rocking bar 18 and rear rocking bar 17.
Described handrail 11 is rotationally connected with vehicle frame 1, passes through the 3rd lockable mechanism fixed armrest swing position between vehicle frame 1 and handrail 11; Described the 3rd lockable mechanism comprises three motor hinged with vehicle frame 1, the 3rd turbine and worm mechanism, the 3rd motor is fixedly connected with the turbine of the 3rd turbine mechanism, and an end and the handrail 11 of the worm screw 14 of the 3rd turbine and worm mechanism are hinged, but the self-locking of described the 3rd turbine and worm mechanism.
The described crawler belt outside is zigzag structure, and the value of angle α, the β of profile of tooth both sides and crawler belt groove is respectively 125 °～135 °, 80 °～95 °.
Avoid safety misadventure to occur, the present embodiment is except the battery isolator control of the first motor, the second motor and the 3rd motor of setting, also be provided with three switches of controlling separately three motors, opening of any one switch, two other switch does not start, thereby effectively avoid in Liao Pa building process carrying out the startup of part, the idle running of crawler belt in the implementation process, and the rotation of handrail in the process of walking, actv. has been avoided safety misadventure.
Claims (9)
1. a cart for travelling up or down stairs, comprise vehicle frame, and vehicle frame divides two sections of front and back, and leading portion is tilted upward, and is provided with running gear and handrail on vehicle frame; Described running gear comprises the first power system, driving wheel, crawler belt, flower wheel and expansion tightening wheel, driving wheel and flower wheel are separately positioned on the front and back end of vehicle frame, pass through crawler haulage, it is characterized in that: junction, described vehicle frame rear and front end also is provided with transition wheel, between described driving wheel and transition wheel and or transition wheel and flower wheel between be provided with the crawler belt supporting plate, the crawler belt supporting plate is fixed on vehicle frame and contacts with crawler belt.
2. cart for travelling up or down stairs according to claim 1, it is characterized in that: described the first power system comprises the first motor, the first turbine and worm mechanism, the first motor passes through the first turbine and worm mechanism to the driving wheel transmission, the turbine of the first turbine and worm mechanism is fixedly connected with the first machine shaft, driving wheel respectively with worm screw, but the self-locking of described the first turbine and worm mechanism.
3. cart for travelling up or down stairs according to claim 1, it is characterized in that: described running gear also comprises the implementation part, comprise with two groups of front and back and carry out wheel, the second Locking Device of parallelogram lindage and locking parallelogram lindage position, described implementation wheel is arranged on the end of four-bar mechanism rocking bar.
4. cart for travelling up or down stairs according to claim 3, it is characterized in that: described the second Locking Device comprises second motor hinged with vehicle frame, the second worm-and-wheel gear, the second motor is fixedly connected with the turbine of the second turbine and worm mechanism, the end of the worm screw of the second turbine and worm mechanism and one of them rocking bar of parallelogram lindage are hinged, but the self-locking of described the second turbine and worm mechanism.
5. according to the described cart for travelling up or down stairs of claim 3 or 4, it is characterized in that: the front-wheel of described implementation wheel is cardan wheel.
6. according to claim 3 or 4 or 5 described cart for travelling up or down stairss, it is characterized in that: the trailing wheel of described implementation wheel is arranged on the inboard of cross member of frame, and front-wheel is arranged on the outside of cross member of frame.
7. cart for travelling up or down stairs according to claim 1, it is characterized in that: described handrail and vehicle frame are rotationally connected, between vehicle frame and handrail by the 3rd lockable mechanism fixed armrest swing position.
8. cart for travelling up or down stairs according to claim 7, it is characterized in that: described the 3rd lockable mechanism comprises three motor hinged with vehicle frame, the 3rd turbine and worm mechanism, the 3rd motor is fixedly connected with the turbine of the 3rd turbine mechanism, an end and the handrail of the worm screw of the 3rd turbine and worm mechanism are hinged, but the self-locking of described the 3rd turbine and worm mechanism.
9. cart for travelling up or down stairs according to claim 1 is characterized in that: the described crawler belt outside is zigzag structure, and the value of angle α, the β of profile of tooth both sides and crawler belt groove is respectively 125 °～135 °, 80 °～95 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320300853.8U CN203381672U (en) | 2013-05-29 | 2013-05-29 | Crawler type stair climbing barrow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320300853.8U CN203381672U (en) | 2013-05-29 | 2013-05-29 | Crawler type stair climbing barrow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203381672U true CN203381672U (en) | 2014-01-08 |
Family
ID=49870192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320300853.8U Expired - Fee Related CN203381672U (en) | 2013-05-29 | 2013-05-29 | Crawler type stair climbing barrow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203381672U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104921880A (en) * | 2015-06-29 | 2015-09-23 | 广西科技大学鹿山学院 | Intelligent stair climbing device and control method thereof |
| CN109363841A (en) * | 2018-10-10 | 2019-02-22 | 陈传东 | A kind of Multifunctional rehabilitation vehicles |
| WO2020186670A1 (en) * | 2019-03-20 | 2020-09-24 | 中山小神童创新科技有限公司 | Easy-to-turn stair climbing machine |
-
2013
- 2013-05-29 CN CN201320300853.8U patent/CN203381672U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104921880A (en) * | 2015-06-29 | 2015-09-23 | 广西科技大学鹿山学院 | Intelligent stair climbing device and control method thereof |
| CN104921880B (en) * | 2015-06-29 | 2017-11-21 | 广西科技大学鹿山学院 | Intelligent stair-climbing device and its control method |
| CN109363841A (en) * | 2018-10-10 | 2019-02-22 | 陈传东 | A kind of Multifunctional rehabilitation vehicles |
| WO2020186670A1 (en) * | 2019-03-20 | 2020-09-24 | 中山小神童创新科技有限公司 | Easy-to-turn stair climbing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |