CN212195288U - Pull ladder of dormitory van - Google Patents
Pull ladder of dormitory van Download PDFInfo
- Publication number
- CN212195288U CN212195288U CN202020092461.7U CN202020092461U CN212195288U CN 212195288 U CN212195288 U CN 212195288U CN 202020092461 U CN202020092461 U CN 202020092461U CN 212195288 U CN212195288 U CN 212195288U
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- ladder
- frame
- limiting
- frames
- rail
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Abstract
The utility model relates to a dormitory van pull ladder, including ladder frame structure, slide rail structure and interlock, ladder frame structure is through the smooth/roll ground of interlock pull out or accomodate in slide rail structure, slide rail structure links together with corresponding dormitory van skeleton. The utility model discloses the pull ladder can go out the pull and fall to the ground and place under operating condition to can fold under non-operating condition and accomodate, easy operation convenient and fast, sound construction, safe and reliable.
Description
Technical Field
The utility model relates to a special vehicle technical field, concretely relates to dormitory van pull ladder.
Background
On a special boarding car with a shelter installed, a boarding ladder is required. At the place where the shelter of the vehicle-mounted platform has a certain height from the ground, a worker needs to go up and down the shelter by a convenient, quick, safe and reliable boarding ladder. But present boarding ladder size is great, has taken the very big storage space of vehicle, and folding accomodating and taking that can not be quick, and hang on the couple at the platform edge mostly through the hangers, need carry out special transport, installation during the use, and the step is loaded down with trivial details, wastes time and energy, seriously influences staff's work efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the problem that prior art exists, provide a dormitory car pull ladder, can open and place under operating condition, can fold under non-operating condition and accomodate.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the utility model provides a dormitory van pull ladder, includes ladder frame structure, slide rail structure and interlock, ladder frame structure slides/rolls through the interlock and pulls out or accomodate in slide rail structure, slide rail structure links together with corresponding dormitory van skeleton.
Furthermore, the slide rail structure includes a pair of tracks, a track end plate is arranged between one ends of the tracks, the ladder frame structure includes a pair of upper ladder frames and a pair of lower ladder frames which are parallel to each other, a plurality of pairs of pedal plate side welding plates are uniformly distributed between the upper ladder frames and the lower ladder frames through revolute pairs in a rotating manner, the pedal plates are fixedly connected between each pair of pedal plate side welding plates at corresponding positions on two sides of the ladder frame structure, the linkage device includes a plurality of rollers, the rollers are rotatably arranged on the upper ladder frames or the lower ladder frames through corresponding wheel shafts, and the upper ladder frames or the lower ladder frames are in rolling fit with the tracks through the rollers.
Furthermore, one end of the upper-layer ladder frame and one end of the lower-layer ladder frame on the same side are connected with a ladder stand fixing plate through a revolute pair, and the ladder stand fixing plate is arranged on the track in a sliding/rolling mode.
Furthermore, the other ends of the upper ladder frame and the lower ladder frame are respectively provided with a support leg for falling to the ground for supporting.
Furthermore, one end of the crawling ladder fixing plate, which is opposite to the rail end plate, is provided with a limiting groove part for limiting the sliding/rolling stroke of the crawling ladder fixing plate on the rail, a limiting frame is fixed on the rail, and the limiting frame and the limiting groove part are matched to block limiting.
Furthermore, the limiting frame is provided with a rubber block for buffering when the limiting frame contacts with the limiting groove-shaped part.
Furthermore, a reinforcing groove-shaped part is connected between the ladder stand fixing plates on the two sides.
The utility model has the advantages that:
the utility model discloses the pull ladder can go out the pull and fall to the ground and place under operating condition to can fold under non-operating condition and accomodate, easy operation convenient and fast, sound construction, safe and reliable.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention in the unfolded state;
FIG. 2 is a partial enlarged view of the position limiting frame of the present invention in the expanded state;
fig. 3 is a schematic structural view of the storage device of the present invention.
The reference numbers in the figures illustrate: 1. the track ladder comprises a track end plate, 2, a track, 3, an upper-layer ladder frame, 4, a lower-layer ladder frame, 5, a tread side welding plate, 6, a tread plate, 7, rollers, 8, a wheel shaft, 9, a ladder fixing plate, 10, supporting legs, 11, a limiting groove-shaped piece, 12, a limiting frame, 13, a rubber block, 14 and a reinforcing groove-shaped piece.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 2, a pull ladder for a camper comprises a ladder frame structure, a slide rail structure and a linkage device, wherein the ladder frame structure is pulled out or stored in the slide rail structure in a sliding/rolling manner through the linkage device, and the slide rail structure is connected with a corresponding camper framework.
The slide rail structure comprises a pair of rails 2, a rail end plate 1 is arranged between one end of each rail 2 and used for limiting and enhancing the stability of the rail 2, the ladder frame structure comprises a pair of upper ladder frames 3 and a pair of lower ladder frames 4 which are parallel in pairs, in the embodiment, the upper ladder frames 3 and the lower ladder frames 4 are composed of four square tubes which are parallel in pairs, a plurality of pairs of tread plate side welding plates 5 are rotationally and evenly distributed between the upper ladder frames 3 and the lower ladder frames 4 through revolute pairs, a tread plate 6 is fixedly connected between each pair of tread plate side welding plates 5 at corresponding positions on two sides of the ladder frame structure, the linkage device comprises a plurality of rollers 7, the rollers 7 are rotationally arranged on the upper ladder frames 3 or the lower ladder frames 4 through corresponding wheel shafts 8, the upper ladder frames 3 or the lower ladder frames 4 are in rolling fit with the rails 2 through the rollers 7, in the embodiment, the rollers 7 are rotatably arranged on the lower ladder frame 4 by means of respective axles 8.
One end of the upper ladder frame 3 and one end of the lower ladder frame 4 on the same side are connected with a ladder fixing plate 9 through a revolute pair to form two ladder fixing plates 9, the ladder fixing plates 9 are arranged on the track 2 in a sliding/rolling manner, and in the embodiment, the rollers 7 are also arranged on the ladder fixing plates 9, so that the ladder fixing plates 9 and the track 2 are matched in a rolling manner.
The other ends of the upper ladder frame 3 and the lower ladder frame 4 are respectively provided with a support leg 10 for supporting the ladder on the ground, and in addition, in the embodiment, a pulling handrail (not shown in the figure) can be arranged on one step board 6 closest to the support leg 10, so that the whole ladder frame structure can be pulled out manually.
One end of the cat ladder fixing plate 9, which is opposite to the rail end plate 1, is provided with a limiting groove part 11 for limiting the sliding/rolling travel of the cat ladder fixing plate 9 on the rail 2, the rail 2 is fixed with a limiting frame 12, and the limiting frame 12 and the limiting groove part 11 are matched to block limiting.
The limiting frame 12 is provided with a rubber block 13 for buffering when the limiting frame 12 contacts with the limiting groove part 11.
A reinforcing channel part 14 is connected between the ladder stand fixing plates 9 on the two sides.
As shown in fig. 1, in a working state, a user opens a cabin door of the storage cabinet, the front end of the ladder frame structure is pulled out to the limiting frame 12 through the pull handrail on the step plate 6 at the front end of the ladder frame, and the tail end of the ladder frame structure naturally falls to the ground under the action of gravity, so that the pull ladder is opened and placed; as shown in fig. 3, in the non-operating state, the upper ladder rack 3 and the lower ladder rack 4 can be folded and pushed into the storage cabinet of the camper car through the rail 2 to be stored.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The dormitory van pulling ladder is characterized by comprising a ladder frame structure, a slide rail structure and a linkage device, wherein the ladder frame structure is pulled out or stored in the slide rail structure in a sliding/rolling manner through the linkage device, the slide rail structure is connected with a corresponding dormitory van framework, the slide rail structure comprises a pair of rails (2), a rail end plate (1) is arranged between one end of each rail (2), the ladder frame structure comprises a pair of upper ladder frames (3) and a pair of lower ladder frames (4) which are parallel to each other in pairs, a plurality of pairs of stepping board side welding plates (5) are uniformly distributed between the upper ladder frames (3) and the lower ladder frames (4) in a rotating manner through rotating pairs, stepping boards (6) are fixedly connected between each pair of stepping board side welding plates (5) at corresponding positions on two sides of the ladder frame structure, the linkage device comprises a plurality of idler wheels (7), and the idler wheels (7) are rotatably arranged on the upper ladder frames (3) or the lower ladder frames (4) through corresponding wheel shafts (8) ) And the upper-layer ladder frame (3) or the lower-layer ladder frame (4) is matched with the track (2) in a rolling way through the rollers (7).
2. Dormitory van pull ladder according to claim 1, wherein one end of the upper ladder frame (3) and the lower ladder frame (4) on the same side are commonly connected with a ladder fixing plate (9) through a revolute pair, and the ladder fixing plate (9) is slidably/rollably disposed on the rail (2).
3. Dormitory van pulling ladder according to claim 2, wherein the other ends of the upper ladder frame (3) and the lower ladder frame (4) are respectively provided with a support leg (10) for landing support.
4. Dormitory car pull ladder according to claim 2, characterized in that a limiting groove (11) is arranged on one end of the ladder fixing plate (9) opposite to the rail end plate (1) for limiting the sliding/rolling travel of the ladder fixing plate (9) on the rail (2), a limiting frame (12) is fixed on the rail (2), and the limiting frame (12) and the limiting groove (11) cooperate to block limiting.
5. Dormitory van pulling ladder according to claim 4, wherein the limiting frame (12) is provided with a rubber block (13) for buffering when the limiting frame (12) contacts with the limiting channel member (11).
6. Dormitory car ladder according to claim 2, characterized in that a reinforcing channel section (14) is connected between the ladder fixing plates (9) on both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092461.7U CN212195288U (en) | 2020-01-16 | 2020-01-16 | Pull ladder of dormitory van |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020092461.7U CN212195288U (en) | 2020-01-16 | 2020-01-16 | Pull ladder of dormitory van |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212195288U true CN212195288U (en) | 2020-12-22 |
Family
ID=73810235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020092461.7U Active CN212195288U (en) | 2020-01-16 | 2020-01-16 | Pull ladder of dormitory van |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212195288U (en) |
-
2020
- 2020-01-16 CN CN202020092461.7U patent/CN212195288U/en active Active
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| GR01 | Patent grant |