CN106585476B - A kind of foldable stair applied to caravan - Google Patents
A kind of foldable stair applied to caravan Download PDFInfo
- Publication number
- CN106585476B CN106585476B CN201611241636.0A CN201611241636A CN106585476B CN 106585476 B CN106585476 B CN 106585476B CN 201611241636 A CN201611241636 A CN 201611241636A CN 106585476 B CN106585476 B CN 106585476B
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- CN
- China
- Prior art keywords
- board bracket
- running
- connecting rods
- respectively hinged
- pedal
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/32—Vehicles adapted to transport, to carry or to comprise special loads or objects comprising living accommodation for people, e.g. caravans, camping, or like vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/02—Retractable steps or ladders, e.g. movable under shock
Abstract
The invention discloses a kind of foldable stair applied to caravan, including lower part running-board bracket, middle part running-board bracket, be connected caravan chassis top supporting frame, two first connecting rods, two second connecting rods and two third connecting rods, the upper end of two first connecting rods is respectively hinged at top supporting frame two sides, lower end be respectively hinged at middle part running-board bracket two sides front end；The upper end of two second connecting rods is respectively hinged at top supporting frame two sides, middle part is respectively hinged at middle part two middle side part of running-board bracket, lower end is respectively hinged at lower part running-board bracket two sides front end；The upper end of two third connecting rods is respectively hinged at middle part two middle side part of running-board bracket, lower end is respectively hinged at two middle side part of lower part running-board bracket；Be connected the first pull rod between the middle part of two first connecting rods, and top supporting frame is equipped with the second pull rod at front end, is connected between the first pull rod and the second pull rod at least through a tension spring.Folding and unfolding of the present invention is convenient, and structure it is more compact, it is simple, occupy little space.
Description
Technical field
The present invention relates to caravan manufacturing technology fields, and in particular to a kind of foldable stair applied to caravan.
Background technique
The vehicle-mounted ladder of caravan requires to take conveniently, occupies little space, and exists on present caravan for the vehicle-mounted ladder above and below occupant
Such as structure is complicated, and folding and unfolding is inconvenient, the big problem of occupied space, and it is generally only with the structure of step, when needs push away
When the wheeled tool such as wheelchair, perambulator, bicycle is got on or off the bus, or need to push it is more inconvenient when getting on or off the bus compared with parcel.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of foldable stair applied to caravan, and folding and unfolding is convenient, and
Structure is more compact, simple, occupies little space.
The technical scheme is that a kind of foldable stair applied to caravan, including lower part running-board bracket, middle part pedal
Frame, be connected caravan chassis top supporting frame, two first connecting rods, two second connecting rods and two third connecting rods, two first
The upper end of connecting rod is respectively hinged at top supporting frame two sides, and the lower end of two first connecting rods is respectively hinged at middle part running-board bracket two sides
Front end；The upper end of two second connecting rods is respectively hinged at top supporting frame two sides, is respectively hinged in the middle part of two second connecting rods
Two middle side part of middle part running-board bracket, the lower end of two second connecting rods are respectively hinged at lower part running-board bracket two sides front end；Two thirds connect
The upper end of bar is respectively hinged at middle part two middle side part of running-board bracket, and the lower end of two third connecting rods is respectively hinged at lower part running-board bracket two
Middle side part；Be connected the first pull rod between the middle part of two first connecting rods, and top supporting frame is equipped with the second pull rod at front end, the
It is connected between one pull rod and the second pull rod at least through a tension spring.
As an improvement, middle part running-board bracket includes branch plates and the pedal between two middle part branch plates in the middle part of in the of two,
The pedal can interleave into or extract from two middle part branch plates；The lower part running-board bracket includes two lower part branch plates and is in
Pedal between two lower part branch plates, the pedal can interleave into or extract from two lower part branch plates.
As an improvement, further including there are two limit knob, two limit knobs are each passed through a middle part branch plate and one
The side precession of a lower part branch plate corresponds to the side of pedal.
As a further improvement, top supporting frame is equipped with the first support base, middle part running-board bracket is equipped with the second support base,
Lower part running-board bracket is equipped with third support base, and the pedal extracted out from middle part running-board bracket and lower part running-board bracket can support in described
On first support base, the second support base and third support base.
As a further improvement, middle part running-board bracket and lower part running-board bracket include two pieces of pedals.
As a further improvement, being connected between the first pull rod and the second pull rod by two tension springs.
As a further improvement, each hinged height-adjustable supporting leg in two sides, institute below the lower part running-board bracket
Stating supporting leg includes pedestal, screw rod and support column, and the upper end of support column is hinged on lower part running-board bracket in the following, the centre of support column is set
There is the internal thread hole of connection lower end surface, the top of screw rod cooperates on the internal thread hole, and the lower end of screw rod is equipped with a bulb, spiral shell
The bulb of bar lower end cooperates on pedestal, and the adjustment bar of the connected one rotatable screw rod in the middle part of screw rod adjusts the free end of bar
Equipped with a hook, two sides are respectively installed with a clasp joint portion below the running-board bracket of lower part, and the hook can be hung when rotating whole supporting leg
In the clasp joint portion.In this way when foldable stair open and use, lower part running-board bracket passes through two height-adjustable supports
Leg supports on the ground, so that entire foldable stair is rigidly more preferable, people's use of being more convenient for.
The present invention is since the upper end of two first connecting rods is respectively hinged at top supporting frame two sides, under two first connecting rods
End is respectively hinged at middle part running-board bracket two sides front end；The upper end of two second connecting rods is respectively hinged at top supporting frame two sides, and two
Middle part two middle side part of running-board bracket is respectively hinged in the middle part of root second connecting rod, the lower end of two second connecting rods is respectively hinged at lower part
Running-board bracket two sides front end；The upper end of two third connecting rods is respectively hinged at middle part two middle side part of running-board bracket, two third connecting rods
Lower end is respectively hinged at two middle side part of lower part running-board bracket；Be connected the first pull rod between the middle part of two first connecting rods, top braces
Frame is equipped with the second pull rod at front end, is connected between the first pull rod and the second pull rod at least through a tension spring.In this way to
Preceding promotion lower part running-board bracket, tension spring shrink, lower part running-board bracket, middle part running-board bracket and top supporting frame may be folded on together, when to
Pull lower part running-board bracket, tension spring stretching, extension afterwards, lower part running-board bracket and middle part running-board bracket form staircase structural model, facilitate people up and down.
The present invention in conjunction with caravan after whole folding and unfolding it is convenient, and structure is more compact, simple, occupies little space.
The mounting means that the present invention further passes through change pedal can be repacked into inclined-plane channel design by staircase structural model, side
Just wheeled tool gets on or off the bus or cargo is pushed to get on or off the bus.
Detailed description of the invention
Fig. 1 is perspective view of the present invention；
Fig. 2 present invention hides pedal and two supporting legs are in the perspective view for state of collecting；
Fig. 3 is perspective view of treadle supporting when the first support base, the second support base and third support base；
Fig. 4 is the stereogram exploded view of supporting leg.
Specific embodiment
Invention is further described in detail with specific embodiment with reference to the accompanying drawing.
Referring to figs. 1 to Fig. 4, a kind of foldable stair applied to caravan, including lower part running-board bracket 1, middle part running-board bracket 2,
The second connecting rod 5 of first connecting rod 4, two of top supporting frame 3, two and two third connecting rods 6 on connected caravan chassis.
The upper end of two first connecting rods 4 is respectively hinged at 3 two sides of top supporting frame, the lower end difference of two first connecting rods 4
It is hinged on middle part 2 two sides front end of running-board bracket；The upper end of two second connecting rods 5 is respectively hinged at 3 two sides of top supporting frame, and two
The middle part of two connecting rods 5 is respectively hinged at middle part 2 liang of middle side parts of running-board bracket, and the lower end of two second connecting rods 5 is respectively hinged at lower part
1 two sides front end of running-board bracket；The upper end of two third connecting rods 6 is respectively hinged at middle part 2 liang of middle side parts of running-board bracket, two third connecting rods
6 lower end is respectively hinged at 1 liang of middle side part of lower part running-board bracket；Be connected the first pull rod 7 between the middle part of two first connecting rods 4, top
Portion's support frame 3 is equipped with the second pull rod 8 at front end, is connected between the first pull rod 7 and the second pull rod 8 by two tension springs 9.
Middle part running-board bracket 2 includes two middle part branch plate 2a and the pedal 10 between two middle part branch plate 2a, institute
Stating pedal 10 can insert or pull out between two middle part branch plate 2a；The lower part running-board bracket 1 includes two lower part branch plate 1a
And the pedal 10 between two lower part branch plate 1a, the pedal 10 can be inserted into or pull out between two lower part branch plate 1a
Out.
Middle part running-board bracket 2 and lower part running-board bracket 1 include two pieces of pedals 10.
It further include having to guarantee will not to skid off when pedal 10 is inserted between the branch plate 2a or lower part branch plate 1a of middle part
Two limit knobs 11, two limit knobs 11 are each passed through the side of middle part a branch plate 2a and a lower part branch plate 1a
Precession corresponds to the side of pedal 10.
Top supporting frame 3 is equipped with the first support base 12, and middle part running-board bracket 2 is equipped with the second support base 13, lower part pedal
Frame 1 is equipped with third support base 14, and the pedal 10 extracted out from middle part running-board bracket 2 and lower part running-board bracket 1 can support in described
On first support base 12, the second support base 13 and third support base 14.
Each hinged height-adjustable supporting leg 15 in two sides, the supporting leg 15 wrap the lower part running-board bracket 1 below
Include pedestal 151, screw rod 152 and support column 153, the upper end of support column 153 is hinged on lower part running-board bracket 1 in the following, support column 153
Upper end is specifically hinged on the lower part branch plate 1a of lower part running-board bracket 1 in the following, the centre of support column 153 is equipped with the interior of connection lower end surface
The top of threaded hole 1531, screw rod 152 cooperates on the internal thread hole 1531, and the lower end of screw rod 152 is equipped with a bulb 1521,
The bulb 1521 of 152 lower end of screw rod cooperates on pedestal 151, the adjustment of the connected one rotatable screw rod 152 in the middle part of screw rod 152
Bar 154, the free end of adjustment bar 154 are equipped with a hook 1541, and lower part running-board bracket 1 is installed with a clasp joint portion 16 in two sides below,
The hook 1541 can be hung in the clasp joint portion 16 when rotating whole supporting leg 15.The clasp joint portion 16 is specifically located at lower part
Below branch plate 1a.In this way when foldable stair open and use, lower part running-board bracket 1 passes through two height-adjustable branch of rotation
Support leg 15 supports on the ground, and the height of supporting leg 15 can rotate screw rod 152 by adjusting bar 154 and change entire supporting leg 15
Highly, it is ensured that supporting leg 15 can support on the ground, so that entire foldable stair is rigidly more preferable when using, more convenient people are stepped on
It steps on.
As the foldable stair being installed on caravan, tension spring 9 stretches when it is desired to be used, is in unfolded state；When need
When packing up, by the contraction of tension spring 9, it is in folded state.Further, when pedal 10 is inserted into middle part branch plate 2a under
When portion branch plate 1a, function is step stair；When the extraction of pedal 10, it is placed in the first support base 12,13 and of the second support base
When on third support base 14, smooth ramp way can be formed, it is successfully upper and lower for wheeled tool, such as wheelchair, perambulator
Caravan achievees the purpose that function switch.
The above is only a preferred embodiment of the invention, those skilled in the art is made equivalent change by claim
Both fall within the protection scope of this case.
Claims (5)
1. a kind of foldable stair applied to caravan, it is characterised in that: including lower part running-board bracket, middle part running-board bracket, be connected room
The top supporting frame of chassis, two first connecting rods, two second connecting rods and two third connecting rods, the upper end of two first connecting rods
Top supporting frame two sides are respectively hinged at, the lower end of two first connecting rods is respectively hinged at middle part running-board bracket two sides front end；Two
The upper end of second connecting rod is respectively hinged at top supporting frame two sides, and middle part running-board bracket is respectively hinged in the middle part of two second connecting rods
Two middle side parts, the lower end of two second connecting rods are respectively hinged at lower part running-board bracket two sides front end；The upper end of two third connecting rods point
It is not hinged on middle part two middle side part of running-board bracket, the lower end of two third connecting rods is respectively hinged at two middle side part of lower part running-board bracket；Two
Be connected the first pull rod between the middle part of root first connecting rod, and top supporting frame is equipped with the second pull rod at the front end, the first pull rod and
It is connected between second pull rod at least through a tension spring；
The middle part running-board bracket includes two middle part branch plates and the pedal between two middle part branch plates, and the pedal can
It interleaves into or extracts from two middle part branch plates；The lower part running-board bracket is including two lower part branch plates and is in two lower part branch
Pedal between plate, the pedal can interleave into or extract from two lower part branch plates；
Top supporting frame is equipped with the first support base, and middle part running-board bracket is equipped with the second support base, and lower part running-board bracket is equipped with the
Three support bases, the pedal extracted out from middle part running-board bracket and lower part running-board bracket can support in first support base, second
It supports on seat and third support base.
2. a kind of foldable stair applied to caravan according to claim 1, it is characterised in that: further include that there are two limits
Position knob, the side precession that two limit knobs are each passed through middle part a branch plate and a lower part branch plate correspond to pedal
Side.
3. a kind of foldable stair applied to caravan according to claim 1, it is characterised in that: middle part running-board bracket is under
Portion's running-board bracket includes two pieces of pedals.
4. a kind of foldable stair applied to caravan according to claim 1, it is characterised in that: the first pull rod and second
It is connected between pull rod by two tension springs.
5. a kind of foldable stair applied to caravan according to any one of claims 1 to 4, it is characterised in that: described
Each hinged height-adjustable supporting leg in two sides below the running-board bracket of lower part, the supporting leg includes pedestal, screw rod and support
Column, the upper end of support column is hinged on lower part running-board bracket in the following, the centre of support column is equipped with the internal thread hole of connection lower end surface, screw rod
Top cooperate on the internal thread hole, the lower end of screw rod is equipped with a bulb, and the bulb of screw rod lower end cooperates the spiral shell on pedestal
The adjustment bar of the connected one rotatable screw rod in the middle part of bar, the free end for adjusting bar is equipped with one and links up with, two below the running-board bracket of lower part
Side is respectively installed with a clasp joint portion, and the hook can be hung in the clasp joint portion when rotating whole supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241636.0A CN106585476B (en) | 2016-12-29 | 2016-12-29 | A kind of foldable stair applied to caravan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241636.0A CN106585476B (en) | 2016-12-29 | 2016-12-29 | A kind of foldable stair applied to caravan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106585476A CN106585476A (en) | 2017-04-26 |
| CN106585476B true CN106585476B (en) | 2019-03-22 |
Family
ID=58603163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611241636.0A Active CN106585476B (en) | 2016-12-29 | 2016-12-29 | A kind of foldable stair applied to caravan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106585476B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108725327B (en) * | 2018-08-02 | 2023-02-28 | 荣成名骏户外休闲用品股份有限公司 | Caravan with foldable steps and method |
| CN112208426B (en) * | 2020-10-14 | 2021-09-24 | 浙江飞神车业有限公司 | Car as a house convenient to business turn over and automatic stay |
| CN112208427B (en) * | 2020-10-14 | 2021-09-24 | 浙江飞神车业有限公司 | Cross-country motor home |
| CN113665459B (en) * | 2021-08-05 | 2022-06-07 | 江西德沃箱柜制造有限公司 | Movable storehouse convenient for cargo transportation |
| CN113581051A (en) * | 2021-08-09 | 2021-11-02 | 威海市妇幼保健院（威海市立第二医院、威海市妇女儿童医院） | Epidemic prevention mobile hospital convenient for logging in |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206317733U (en) * | 2016-12-29 | 2017-07-11 | 福建毅宏专用汽车有限公司 | A kind of foldable stair applied to caravan |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172806Y (en) * | 1993-07-21 | 1994-07-27 | 郑克霖 | Multi-purpose ladder |
| DE10127584A1 (en) * | 2001-05-29 | 2002-12-05 | Omnistor Accessories N V | Folding steps for caravan have edging strips on each side of treads, hinged levers being attached to edging strips, each lever being made up of two strips |
| CN204174972U (en) * | 2014-08-22 | 2015-02-25 | 江苏科瑞得金属制品有限公司 | A kind of chorus platform |
| CN105438079A (en) * | 2015-12-20 | 2016-03-30 | 荣成康派斯新能源车辆有限公司 | Folding motor home tread plate ladder |
-
2016
- 2016-12-29 CN CN201611241636.0A patent/CN106585476B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206317733U (en) * | 2016-12-29 | 2017-07-11 | 福建毅宏专用汽车有限公司 | A kind of foldable stair applied to caravan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106585476A (en) | 2017-04-26 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Xisheng Inventor after: Yang Zichao Inventor after: Zheng Yihui Inventor before: Li Gongqian |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |