CN204729124U - A kind of telescopic evacuation platform stair for subway tunnel interval - Google Patents
A kind of telescopic evacuation platform stair for subway tunnel interval Download PDFInfo
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- CN204729124U CN204729124U CN201520411304.7U CN201520411304U CN204729124U CN 204729124 U CN204729124 U CN 204729124U CN 201520411304 U CN201520411304 U CN 201520411304U CN 204729124 U CN204729124 U CN 204729124U
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Abstract
The utility model discloses a kind of telescopic evacuation platform stair for subway tunnel interval, comprise platform girder and telescopic stair body, wherein platform girder is fixed on the below of the evacuation platform being in the interval side of subway tunnel, and offers the chute as stair body sliding rail within it respectively; Telescopic stair body comprises main ladder and pair ladder, and this main ladder and pair ladder adopt the structure of mutual left-hand thread to be coupled to each other relative sliding, and one end of two of main ladder sides is connected respectively by axis of rotation and each slide block be in described chute.By the utility model, can realize not invading system gauge in normal conditions, between influence area, pipeline is not installed, and has esy to use, safe and reliable and evacuation efficiency advantages of higher under applying working condition simultaneously.
Description
Technical field
The utility model belongs to subway rescue aid correlative technology field, more specifically, relates to a kind of telescopic evacuation platform stair for subway tunnel interval.
Background technology
Along with the propelling of Urbanization in China, population size and vehicle flowrate all sharply increase in each city, and the increasing pressure brought to urban traffic is large.For economizing the land resource, engineering construction is corresponding also enters the high speed development stage for Large Underground roads and tunnels and track traffic etc.But because of reasons such as breaking out of fire, vehicle or other equipment faults, subway may be parked in the non-platform region of for example transit tunnel and so on, and the upper and lower vehicle of personnel is very inconvenient, and be difficult to the passenger that evacuates in time, safely on vehicle.
For the evacuation problem in subway tunnel interval, in prior art, the evacuation of end door and side door can be divided into evacuate two kinds of modes according to evacuation path.When adopting side door evacuation mode, emergency evacuation platform is provided with in transit tunnel, consider the arrangement requirement of railcar height of floor from rail top and interval pipeline, this evacuation platform is traditionally arranged to be 800mm ~ 900mm apart from the height of rail level, and fixed stair can be set in evacuation platform end, set up contacting of evacuation platform and railway roadbed thus.
But, further research shows, still there is following defect or deficiency in this kind of existing evacuation platform set-up mode: first, height between evacuation platform and road bed surface is generally about 1000mm, and the communication center of evacuation platform and railway roadbed is also that escape stair is less, a large amount of evacuation personnel need directly to skip to bed surface by evacuation platform, the as easy as rolling off a log tumble injury causing personnel, and have a strong impact on evacuation efficiency; Secondly, even if successfully arrive the Evacuation of road bed surface, be still difficult to evacuation platform, to evacuate to adjacent piles via service channel; Finally, if set up more fixed escape stair, not only by destroying the continuity of evacuation platform, there is evacuation personnel drop to platform gap potential safety hazard from vehicle side door, but also system gauge may be invaded by shadow, between influence area, pipeline is installed and construction simultaneously.
Utility model content
For above defect or the Improvement requirement of prior art, the utility model provides a kind of telescopic evacuation platform stair for subway tunnel interval, wherein by designing the platform stair of extension type in conjunction with the layout feature of existing evacuation platform self, simultaneously to the ad hoc structure of its key component be coupled to each other mode and improve, should be able to realize not invading system gauge in normal conditions mutually, between influence area, pipeline is not installed, and has esy to use, safe and reliable and evacuation efficiency advantages of higher under applying working condition simultaneously.
For achieving the above object, according to the utility model, provide a kind of telescopic evacuation platform stair for subway tunnel interval, it is characterized in that, these evacuation platform stair comprise platform girder and telescopic stair body, wherein:
Described platform girder comprises two girder constructions be arranged in parallel, and they are fixed on the below of the evacuation platform being in the interval side of subway tunnel, and along the direction horizontal expansion towards track; In addition, the inner side of each girder construction offers chute respectively, and these chutes are provided with retainer separately in the end near rail side;
Described telescopic stair body comprises main ladder and pair ladder, and wherein main ladder and pair ladder adopt the structure of mutual left-hand thread to be coupled to each other relative sliding, and one end of two of main ladder sides is connected respectively by axis of rotation and each slide block be in described chute.
Preferably, these evacuation platform stair are also equipped with safety pin, and this safety pin can be arranged on to plug the side of described evacuation platform.
Preferably, described secondary ladder is set to the top being buckled in described main ladder, and possesses the gap of more than 2cm between its side end face and the inner side end face of described girder construction.
Preferably, the end of described secondary ladder also has detent mechanism, and this detent mechanism is for being stuck in the track in tunnel.
Preferably, the girder construction of described platform girder is directly fixed in the structural walls of subway tunnel by chemical anchors.
Preferably, described main ladder and pair ladder all adopt glass fiber reinforced plastic or stainless steel to make, and the length of secondary ladder is less than or equal to the length of main ladder.
In general, the above technical scheme conceived by the utility model compared with prior art, mainly possesses following technological merit:
1, by adopting telescopic stair structure, especially the layout feature in conjunction with existing evacuation platform designs, should be able to realize not invading transit tunnel facilities clearance in normal conditions mutually, between influence area, pipeline is not installed, can operate quickly and easily under applying working condition simultaneously, guarantee play good path and evacuate effect;
2, by its key component as the structure of main ladder, secondary ladder, chute and slide block etc. and set-up mode thereof are studied, even if test shows also can operate safely, successfully for the passenger without specific aim training, and between evacuation platform and road bed surface, set up Stability Analysis of Structures, adjustable length and be convenient to the current stair that reset;
3, according to telescopic evacuation platform stair compact overall structure of the present utility model, be convenient to install and later maintenance, and the upgrading that can realize when not increasing more engineering quantity existing equipment, be thus particularly useful for the safe rescue purposes of all kinds of subway tunnel interval or other similar site.
Accompanying drawing explanation
Fig. 1 is according to telescopic evacuation platform stair of the present utility model general assembly schematic diagram in normal conditions for exemplary display;
Fig. 2 more specifically shows the schematic diagram positioned opposite between telescopic platform stair under nominal situation and evacuation platform;
Fig. 3 is evacuating the general assembly schematic diagram under operating mode for exemplary display according to telescopic evacuation platform stair of the present utility model;
Fig. 4 is the overall structure schematic diagram be according to telescopic evacuation platform stair of the present utility model under nominal situation;
Fig. 5 is according to telescopic evacuation platform stair of the present utility model the overall structure schematic diagram evacuated under operating mode;
Fig. 6 is for display platform girder, the structural representation being coupled to each other relation between main ladder and pair ladder;
In all of the figs, identical Reference numeral is used for representing identical element or structure, wherein:
The secondary terraced 6-evacuation platform 7-track 8-safety pin of the main terraced 5-of 1-platform girder 1a-chute 1b-stop ledge 2-slide block 3-axis of rotation 4-
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, 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, and be not used in restriction the utility model.In addition, if below in described each embodiment of the utility model involved technical characteristic do not form conflict each other and just can mutually combine.
Fig. 4 is the overall structure schematic diagram be according to telescopic evacuation platform stair of the present utility model under nominal situation, and Fig. 5 is according to telescopic evacuation platform stair of the present utility model the overall structure schematic diagram evacuated under operating mode.As shown in Figures 4 and 5, these telescopic evacuation platform stair mainly comprise platform girder and telescopic stair body two building blocks, and by it relative to the concrete structure of the layout between evacuation platform and multiple key component be coupled to each other mode, to realize not invading transit tunnel facilities clearance in normal conditions, between influence area, pipeline is not installed, can operate quickly and easily under applying working condition simultaneously, guarantee play good path and evacuate effect.
Specifically, platform girder 1 can comprise two girder constructions be arranged in parallel, they are fixed on the below of the evacuation platform 6 being in the interval side of subway tunnel, such as substantially fit with the landing slab soffit of evacuation platform, and along the direction horizontal expansion towards track 7; In addition, the inner side of each girder construction offers the chute 1a of orthoscopic respectively, and these chutes are provided with for example stop ledge 1b or similar structures part separately in the end near rail side, when extracting stair body out with box lunch, avoid the slide block 2 together chute along with stair body be in each chute.
Simultaneously with reference to Fig. 6, telescopic stair body comprises main terraced 4 and pair ladder 5 two basic booms, wherein main terraced 4 and pair ladder 5 adopt the structure of mutual left-hand thread to be coupled to each other relative sliding, be preferably in the drawings and secondary ladder 5 be buckled in the main top of terraced 4 and its tabling and slip each other can be kept, for example will leave the gap of more than 2cm between the side end face of secondary ladder 5 and the inner side end face of girder construction, thus while effective slippage, realize the stretching, extension in stair intrinsic single length or shortening.In addition, be in for two sides between pedal for main terraced 4, their one end (being shown as left end in figure) is connected respectively by axis of rotation 3 and each slide block 2 be in chute 1a; In this way, when being in unused state, the mutual fit that this telescopic stair body performs between main ladder and pair ladder makes entire length minimize, then in integral slipping to the chute 1a of platform girder and below the landing slab being in evacuation platform completely, therefore the facilities clearance in existing tunnel interval can not only be invaded, the installation of pipeline between influence area, and support and reinforcement effect can also be played to landing slab simultaneously; And when being in use and also namely evacuating state, this telescopic stair body is drawn to the stop ledge 1b place of end along platform girder 1 entirety, and there is certain angle rotation downwards via axis of rotation 3, then main ladder and pair ladder are launched each other, thus set up the current stair between evacuation platform and road bed surface.
In addition, above-mentioned evacuation platform stair can also be equipped with safety pin 8, as shown in Figure 2, this safety pin can be arranged on to plug the side of evacuation platform 6, its lower end is stretched out along vertical direction and is stopped the end of stair body near track side, effectively prevents telescopic stair body when being in unused state from skidding off thus.
According to a preferred embodiment of the present utility model, described main terraced 4 and pair ladder 5 glass fiber reinforced plastic or stainless steel all can be adopted to make, and the length of secondary ladder is less than or equal to the length of main ladder.Like this, not only can improve overall structural strength, guarantee also can not to damage or collapse when crowd on a large scale runs and be crowded, but also effectively can prevent the adverse effect of Long-Time Service humiture in tunnel.
According to another preferred embodiment of the present utility model, the end of described secondary ladder can also have the detent mechanism of for example claw and so on, and this detent mechanism, for being stuck in the track in tunnel, can more firmly, reliably use thus under evacuation operating mode.
According to another preferred embodiment of the present utility model, the girder construction of described platform girder is directly fixed in the structural walls of subway tunnel by chemical anchors, thus not only for supporting the landing slab of evacuation platform 6, but also provide the position constraint as shown in Figure 6 in Y-direction and Z-direction for slide block 2 and telescopic stair body.
The use procedure according to telescopic evacuation platform stair of the present utility model is more specifically explained below with reference to Fig. 1 to Fig. 3.
When implementing, first being extracted out by safety pin 8, slide block 2 is drawn to end along platform girder 1 together with main terraced 4, extracted out by pair ladder 5 subsequently from main terraced 4, secondary ladder 5 is rotated down by axis of rotation 3 with main terraced 4 together with slide block 2 and platform girder 1 subsequently.Platform girder outer is fixed in main terraced 4 upper ends, and lower end and the pair ladder 5 mutual left-hand threads in upper end, secondary terraced 5 lower ends are taken and are put in rail bed surface, set up the current stair of evacuation platform and road bed surface.
After this device is used to complete, main terraced 4, secondary terraced 5 need be packed up and it is contracted to below evacuation platform together with slide block 2, and safety pin 8 is plugged.
To sum up, the layout feature effectively combining existing evacuation platform according to telescopic evacuation platform stair of the present utility model designs, corresponding realization does not invade transit tunnel facilities clearance in normal conditions, between influence area, pipeline is not installed, can operate quickly and easily under applying working condition simultaneously, guarantee play good path and evacuate effect.
In addition, this device compact overall structure, be convenient to install and later maintenance, and the upgrading that can realize when not increasing more engineering quantity existing equipment, efficiently solve evacuation platform to the current difficult problem between railway roadbed and railway roadbed to evacuation platform, significantly improve evacuation efficiency, can avoid or reduce casualties during evacuation, thus be particularly useful for the safe rescue purposes of all kinds of subway tunnel interval or other similar site.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. for the telescopic evacuation platform stair in subway tunnel interval, it is characterized in that, these evacuation platform stair comprise platform girder and telescopic stair body, wherein:
Described platform girder (1) comprises two girder constructions be arranged in parallel, and they are fixed on the below of the evacuation platform (6) being in the interval side of subway tunnel, and along the direction horizontal expansion towards track (7); In addition, the inner side of each girder construction offers chute (1a) respectively, and these chutes are provided with retainer (1b) separately in the end near rail side;
Described telescopic stair body comprises main ladder (4) and pair ladder (5), wherein main ladder and pair ladder adopt the structure of mutual left-hand thread to be coupled to each other relative sliding, and one end of two sides of main ladder (4) is connected respectively by axis of rotation (3) and each slide block (2) be in described chute (1a).
2. telescopic evacuation platform stair as claimed in claim 1, is characterized in that, these evacuation platform stair are also equipped with safety pin, and this safety pin can be arranged on to plug the side of described evacuation platform (6).
3. telescopic evacuation platform stair as claimed in claim 1 or 2, is characterized in that, described secondary ladder is set to the top being buckled in described main ladder, and possesses the gap of more than 2cm between its side end face and the inner side end face of described girder construction.
4. telescopic evacuation platform stair as claimed in claim 3, is characterized in that, the end of described secondary ladder (5) also has detent mechanism, and this detent mechanism is for being stuck in the track in tunnel.
5. telescopic evacuation platform stair as claimed in claim 4, is characterized in that, the girder construction of described platform girder is directly fixed in the structural walls of subway tunnel by chemical anchors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520411304.7U CN204729124U (en) | 2015-06-15 | 2015-06-15 | A kind of telescopic evacuation platform stair for subway tunnel interval |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520411304.7U CN204729124U (en) | 2015-06-15 | 2015-06-15 | A kind of telescopic evacuation platform stair for subway tunnel interval |
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| CN204729124U true CN204729124U (en) | 2015-10-28 |
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| CN201520411304.7U Active CN204729124U (en) | 2015-06-15 | 2015-06-15 | A kind of telescopic evacuation platform stair for subway tunnel interval |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879161A (en) * | 2015-06-15 | 2015-09-02 | 中铁第四勘察设计院集团有限公司 | Telescopic evacuation platform stair for subway tunnel interval |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879161A (en) * | 2015-06-15 | 2015-09-02 | 中铁第四勘察设计院集团有限公司 | Telescopic evacuation platform stair for subway tunnel interval |
| CN104879161B (en) * | 2015-06-15 | 2017-10-13 | 中铁第四勘察设计院集团有限公司 | A kind of telescopic evacuation platform stair interval for subway tunnel |
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