CN211107190U - Folding drawing ladder and shelter transport vechicle - Google Patents
Folding drawing ladder and shelter transport vechicle Download PDFInfo
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- CN211107190U CN211107190U CN201922203337.3U CN201922203337U CN211107190U CN 211107190 U CN211107190 U CN 211107190U CN 201922203337 U CN201922203337 U CN 201922203337U CN 211107190 U CN211107190 U CN 211107190U
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Abstract
The utility model discloses a folding drawing ladder, an upper ladder frame and a lower ladder frame are hinged with each other, a drawing track is fixed on a vehicle body, one end of the upper ladder frame is connected with the drawing track in a sliding way, the drawing track can be moved in when the lower ladder frame is folded and attached to the upper ladder frame, and the upper ladder frame and the lower ladder frame are stored by the drawing track; pedals are respectively hinged on the upper ladder frame and the lower ladder frame, the pedals are limited by supporting beams on the upper ladder frame and the lower ladder frame in a use state, and the pedals are approximately in a horizontal state in the use state and have a certain included angle with the length direction of the upper ladder frame and the lower ladder frame; the upper ladder frame and the lower ladder frame are mutually butted when unfolded for a person to tread; when the folding ladder is not used, the pedals are turned to be parallel to the upper ladder frame and the lower ladder frame, the lower ladder frame is turned for 180 degrees and is overlapped with the upper ladder frame and then moved into the drawing track; the length of the folding pulling ladder is shortened by half in a folding state, the occupied space is small, and the folding pulling ladder can be arranged on the side of a vehicle body.
Description
Technical Field
The utility model relates to a ladder technical field further relates to a folding drawing ladder. Furthermore, the utility model discloses still relate to a shelter transport vechicle.
Background
In order to facilitate climbing of the shelter transport vehicle, a movable cabin-climbing ladder and a fixed cabin-climbing ladder are generally arranged, and the movable cabin-climbing ladder is mainly fixed below a cabin body or a transport platform; when the device is used, the boarding ladder needs to be taken down and then placed at a position where the boarding ladder needs to be placed, and when a vehicle is transported, the boarding ladder needs to be placed back to a fixed position. The boarding ladder not only occupies large space, but also is inconvenient to use.
The fixed boarding ladder comprises a pedal ladder and a parallelogram ladder which are folded; the device is directly arranged below the transportation platform at the position where the cabin needs to be stepped, and can be directly stepped or pulled out of a parallel four-side folding ladder when in use. The pedal ladder is of a vertical structure, has a large danger coefficient although the structure is simple, and is not favorable for human-machine environment. The parallelogram folding ladder has good use performance, but needs large installation space and is generally only installed at the rear part of the transportation platform; if the device is arranged on the left side and the right side, notches are required to be formed in the longitudinal beam part (or the height of the transportation platform is increased), so that the strength of the transportation platform (or the trafficability of the whole vehicle) is influenced.
For those skilled in the art, how to design a ladder stand which is small in size and convenient to store is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a folding drawing ladder shortens half at fold condition under length, and occupation space is few, and the storage is convenient, and concrete scheme is as follows:
a folding drawing ladder comprises an upper ladder frame, a lower ladder frame and a drawing rail, wherein the upper ladder frame and the lower ladder frame are hinged with each other, the drawing rail is fixed on a vehicle body, one end of the upper ladder frame is connected to the drawing rail in a sliding mode, and the lower ladder frame can move into the drawing rail when being folded and attached to the upper ladder frame;
go up the ladder frame with it articulates respectively to set up the footboard down on the ladder frame, the footboard is by under the user state go up the ladder frame with it is spacing to go up the support crossbeam on the ladder frame down.
Optionally, go up the ladder frame with the articulated shaft of lower ladder frame is located the upper surface, go up the ladder frame and set up the limiting plate, the limiting plate with lower ladder frame can be fixed through the round pin axle grafting.
Optionally, go up ladder frame hinged joint connecting plate, the connecting plate by pull track is spacing to be supported, set up the fixed axle on the connecting plate, the fixed axle transversely runs through the guiding hole that sets up on the pull track both sides wall.
Optionally, a locking device is arranged at the bottom of the drawing track, and the locking device can be inserted into the ladder ascending frame for limiting.
Optionally, the locking device includes a fixed sleeve, a movable pin and a spring, the fixed sleeve is fixed on the drawing track, the movable pin is slidably inserted into the fixed sleeve, and the spring is used for ejecting the movable pin outwards.
Optionally, an angle-shaped antiskid plate is arranged on the edge of one end, which is in contact with the ground, of the lower ladder frame.
Optionally, the lower surfaces of the upper ladder frame and the lower ladder frame are respectively provided with a limiting block, and the limiting blocks limit the pedals in a folded state.
The utility model also provides a shelter transport vechicle, including above-mentioned arbitrary folding take-out and draw the ladder.
The utility model provides a folding drawing ladder, an upper ladder frame and a lower ladder frame are hinged with each other, a drawing track is fixed on a vehicle body, one end of the upper ladder frame is connected with the drawing track in a sliding way, the drawing track can be moved in when the lower ladder frame is folded and attached to the upper ladder frame, and the upper ladder frame and the lower ladder frame are stored by the drawing track; pedals are respectively hinged on the upper ladder frame and the lower ladder frame, the pedals are limited by supporting beams on the upper ladder frame and the lower ladder frame in a use state, and the pedals are approximately in a horizontal state in the use state and have a certain included angle with the length direction of the upper ladder frame and the lower ladder frame; the upper ladder frame and the lower ladder frame are mutually butted when unfolded for a person to tread; when the folding ladder is not used, the pedals are turned to be parallel to the upper ladder frame and the lower ladder frame, the lower ladder frame is turned for 180 degrees and is overlapped with the upper ladder frame and then moved into the drawing track; the length of the folding pulling ladder is shortened by half in a folding state, the occupied space is small, and the folding pulling ladder can be arranged on the side of a vehicle body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a folding extension ladder provided by the present invention;
fig. 2A is a relative position view of an upper ladder frame and a lower ladder frame;
fig. 2B to 2D are a front view, a side view and a plan view, respectively, of an upper ladder frame and a lower ladder frame assembled with each other;
fig. 3A and 3B are a front view and a side view, respectively, of the pull-out rail;
fig. 4 is a sectional view of the lock device.
The figure includes:
going up ladder frame 1, limiting plate 11, going down ladder frame 2, pull track 3, footboard 4, connecting plate 5, fixed axle 6, locking device 7, fixed cover 71, removable pin 72, spring 73, stopper 8.
Detailed Description
The core of the utility model is to provide a folding drawing ladder, the length shortens half under fold condition, and occupation space is few, and the storage is convenient.
In order to make those skilled in the art better understand the technical solution of the present invention, the following will describe the folding extension ladder and the shelter transportation vehicle in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the structure of the folding extension ladder provided by the present invention shows two states of folding and unfolding, the folding extension ladder of the present invention includes an upper ladder frame 1 and a lower ladder frame 2 hinged to each other, and a drawing rail 3 fixed on the car body, a structure for guiding is provided on the drawing rail 3, one end of the upper ladder frame 1 is slidably connected to the drawing rail 3, the upper ladder frame 1 can slide along the drawing rail 3 at the upper end shown in fig. 1; the lower ladder frame 2 is rotatably connected with the upper ladder frame 1, the lower ladder frame 2 can turn over relative to the upper ladder frame 1, the included angle between the upper ladder frame 1 and the lower ladder frame 2 can be changed between 0-180 degrees, the included angle between the upper ladder frame 1 and the lower ladder frame 2 is 180 degrees during normal use, the upper ladder frame 1 and the lower ladder frame 2 are mutually attached during folding and storage, the included angle between the upper ladder frame and the lower ladder frame is 0 degree, and the lower ladder frame 2 can move into the drawing track 3 when being turned over and attached to the upper ladder frame 1; the length of the upper ladder frame 1 is equal to that of the lower ladder frame 2, and after the upper ladder frame and the lower ladder frame are folded and turned, the overall length is shortened by half.
The utility model discloses a folding drawing ladder is through going up ladder frame and lower ladder frame structure of mutual articulated, and whole length shortens half under fold condition, and occupation space is few, can set up in the side of automobile body, arranges that the position has higher flexibility ratio.
Fig. 2B to 2D are front, side and top views, respectively, of the upper ladder frame 1 and the lower ladder frame 2 assembled with each other, as shown in fig. 2A, which is a relative position view of the upper ladder frame 1 and the lower ladder frame 2; on the basis of the scheme, the articulated shafts of the upper ladder frame 1 and the lower ladder frame 2 are positioned on the upper surface, the articulated blocks are respectively arranged on the upper surfaces of the upper ladder frame 1 and the lower ladder frame 2 in a protruding way, and the articulated shafts penetrate through the articulated blocks to relatively rotatably connect the upper ladder frame 1 and the lower ladder frame 2; as shown in fig. 2A, set up limiting plate 11 on last ladder frame 1, limiting plate 11 protrusion in the bottom of going up ladder frame 1, also with the one end that lower ladder frame 2 is connected, set up the trompil on the limiting plate 11, limiting plate 11 can be fixed through the round pin hub grafting with lower ladder frame 2.
Set up the articulated shaft and can make down ladder frame 2 upwards overturn foldingly in the upper surface, lower ladder frame 2 is located ladder frame 1 top during folding, is convenient for push it in pull track 3.
Go up the pivot that ladder frame 1 and lower ladder frame 2 relatively rotate and be connected and the round pin axle on the limiting plate 11 is parallel to each other, and both are not the collineation, and after limiting plate 11 and lower ladder frame 2 pegged graft through the round pin axle, the unable relative rotation of ladder frame 2 mutually realizes the locking.
Furthermore, the upper ladder frame 1 is hinged with a connecting plate 5, the connecting plate 5 is limited and supported by the drawing track 3, the connecting plate 5 can transversely slide along the drawing track 3, and the connecting plate 5 is of a transition structure and is small in size; two connecting plates 5 are arranged, a fixed shaft 6 is arranged on each connecting plate 5, the two connecting plates 5 are fixed into a whole through the fixed shaft, and the fixed shaft 6 transversely penetrates through guide holes formed in two side walls of the drawing track 3; as shown in fig. 3A and 3B, which are respectively a front view and a side view of the drawing rail 3, the drawing rail 3 is U-shaped channel, and a through hole is provided in the lateral wall of the drawing rail 3 along the lateral direction, and the drawing rail 3 passes through the through hole, so that the connection plates 5 on both sides can synchronously and laterally translate.
The bottom of the drawing rail 3 is provided with a locking device 7, and the locking device 7 can be inserted into the lower ladder frame 2 for limiting, so that the upper ladder frame 1 and the lower ladder frame 2 cannot transversely slide out of the drawing rail 3, and the vehicle is prevented from accidentally sliding out due to inertia in the running process.
As shown in fig. 4, a cross-sectional structure of the lock device 7; the locking device 7 comprises a fixed sleeve 71, a movable pin 72 and a spring 73, the fixed sleeve 71 is fixed on the drawing track 3, a cavity is formed inside the fixed sleeve 71, the movable pin 72 is inserted into the fixed sleeve 71 in a sliding mode, the movable pin 72 can slide relative to the fixed sleeve 71, the spring 73 is further arranged in the fixed sleeve 71, one end of the spring 73 abuts against the movable pin 72, the other end of the spring 73 abuts against the fixed sleeve 71, the spring 73 is used for ejecting the movable pin 72 outwards, and when an opening in the ladder ascending frame 1 is aligned with an opening in the ladder ascending frame 1, the spring can be automatically inserted, and storage is convenient.
Preferably, an angle-shaped anti-slip plate is provided at an edge of one end of the lower ladder frame 2 contacting the ground, thereby increasing friction force with the ground and preventing a danger caused by sliding when in use.
Go up the ladder frame 1 and set up stopper 8 respectively with the lower surface of lower ladder frame 2, stopper 8 is spacing footboard 4 under fold condition, and limiting plate 8 protrusion is pressed on limiting plate 8 in the frame body of going up ladder frame 1 and lower ladder frame 2 after footboard 4 is folding, ensures that footboard 4 can accurately arrive and accomodate the parking position.
The utility model also provides a shelter transport vechicle, including foretell folding drawing ladder, foretell technological effect can be realized to this shelter transport vechicle, and prior art is please refer to other structures of this shelter transportation, the utility model discloses no longer give unnecessary details here.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A folding drawing ladder is characterized by comprising an upper ladder frame (1) and a lower ladder frame (2) which are hinged with each other, and a drawing rail (3) fixed on a vehicle body, wherein one end of the upper ladder frame (1) is connected to the drawing rail (3) in a sliding mode, and the lower ladder frame (2) can move into the drawing rail (3) when being folded and attached to the upper ladder frame (1);
go up ladder frame (1) with it articulates respectively on ladder frame (2) and sets up footboard (4) down, footboard (4) are by under the user state go up ladder frame (1) with it is spacing to descend the supporting beam on ladder frame (2).
2. The folding extension ladder according to claim 1, characterized in that the hinged shafts of the upper ladder frame (1) and the lower ladder frame (2) are located on the upper surface, a limiting plate (11) is arranged on the upper ladder frame (1), and the limiting plate (11) and the lower ladder frame (2) can be fixed through pin shaft splicing.
3. The folding extension ladder according to claim 2, characterized in that the upper ladder frame (1) is hinged with a connecting plate (5), the connecting plate (5) is limited and supported by the drawing track (3), a fixed shaft (6) is arranged on the connecting plate (5), and the fixed shaft (6) transversely penetrates through guide holes arranged on two side walls of the drawing track (3).
4. The folding ladder according to claim 3, characterized in that the bottom of the pull rail (3) is provided with a locking device (7), which locking device (7) can be inserted into the ladder going frame (1) for a limit.
5. The folding ladder of claim 4, characterized in that said locking means (7) comprise a fixed sleeve (71), a mobile pin (72) and a spring (73), said fixed sleeve (71) being fixed on said drawing track (3), said mobile pin (72) being slidably inserted in said fixed sleeve (71), said spring (73) being intended to eject said mobile pin (72) outwards.
6. The folding ladder according to claim 1, characterized in that the edge of the end of the lower ladder frame (2) contacting the ground is provided with an angle-shaped anti-slip plate.
7. The folding extension ladder as claimed in claim 1, characterized in that the lower surfaces of the upper ladder frame (1) and the lower ladder frame (2) are respectively provided with a limiting block (8), and the limiting blocks (8) limit the steps (4) in the folded state.
8. A shelter carriage comprising a collapsible pull ladder as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922203337.3U CN211107190U (en) | 2019-12-10 | 2019-12-10 | Folding drawing ladder and shelter transport vechicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922203337.3U CN211107190U (en) | 2019-12-10 | 2019-12-10 | Folding drawing ladder and shelter transport vechicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211107190U true CN211107190U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922203337.3U Active CN211107190U (en) | 2019-12-10 | 2019-12-10 | Folding drawing ladder and shelter transport vechicle |
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| Country | Link |
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| CN (1) | CN211107190U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111994005A (en) * | 2020-09-10 | 2020-11-27 | 重庆铁马专用车有限公司 | Draw ladder and vehicle |
| CN112519686A (en) * | 2021-01-26 | 2021-03-19 | 江苏捷诚车载电子信息工程有限公司 | Pull type boarding ladder |
| CN115742966A (en) * | 2022-12-01 | 2023-03-07 | 中国重汽集团泰安五岳专用汽车有限公司 | Vehicle-mounted foldable and retractable ladder |
-
2019
- 2019-12-10 CN CN201922203337.3U patent/CN211107190U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111994005A (en) * | 2020-09-10 | 2020-11-27 | 重庆铁马专用车有限公司 | Draw ladder and vehicle |
| CN112519686A (en) * | 2021-01-26 | 2021-03-19 | 江苏捷诚车载电子信息工程有限公司 | Pull type boarding ladder |
| CN112519686B (en) * | 2021-01-26 | 2025-01-03 | 江苏捷诚车载电子信息工程有限公司 | Pull-out boarding ladder |
| CN115742966A (en) * | 2022-12-01 | 2023-03-07 | 中国重汽集团泰安五岳专用汽车有限公司 | Vehicle-mounted foldable and retractable ladder |
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