Rail vehicle evacuation device and rail vehicle
The rail vehicle evacuation device addresses inefficiencies in existing systems by deploying a telescopic ramp body parallel to the vehicle, offering adjustable height and compact design for efficient and safe evacuation.
Patent Information
- Authority / Receiving Office
- AU · AU
- Patent Type
- Applications
- Current Assignee / Owner
- CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
- Filing Date
- 2024-06-27
- Publication Date
- 2026-07-09
AI Technical Summary
Existing rail vehicle evacuation ladders are cumbersome, require multiple cylinders for deployment, consume excessive space, and have poor adaptability to varying terrain heights, leading to inefficient and inconvenient evacuation.
A rail vehicle evacuation device with a telescopic ramp body and lifting mechanism that deploys parallel to the vehicle, featuring a telescopic ramp plate adjustable to any height, a retractable skirt board, and a compact design with a telescopic driving mechanism, allowing for efficient and space-saving deployment.
The device provides a compact, efficient, and adaptable evacuation solution with reduced operational time, enhanced stability, and safety features, ensuring quick and safe evacuation regardless of terrain height variations.
Smart Images
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Abstract
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims priority to Chinese Patent Application No. 2023115617179, entitled “RAIL VEHICLE EVACUATION DEVICE AND RAIL VEHICLE”, filed with China National Intellectual Property Administration on November 22, 2023, the entire content of which is incorporated herein by reference. TECHNICAL FIELD
[0002] The present application relates to the technical field of rail transit, and particularly to a rail vehicle evacuation device and a rail vehicle. BACKGROUND
[0003] In order to ensure safety of passengers under the condition that a rail vehicle cannot continuously run in case of sudden accidents, the rail vehicle is provided with an evacuation ladder which can be manually or automatically telescoped and folded, and is configured to safely and efficiently evacuate the passengers in an emergency state.
[0004] The existing emergency evacuation ladder is perpendicular to the vehicle along a direction of a carriage doorway after being deployed, a width of the unfolded ladder is quite large, occupied space is large, a structure of the ladder is complex, several cylinders are required for automatic telescoping and deploying, and time spent in extension is long. For example, in a rail vehicle in the prior art, the evacuation ladder is mounted at an escape door, skirt board structures of the rail vehicle are located on two sides of the vehicle and generally fixedly mounted, and during side evacuation, the evacuation ladder can be deployed only after the skirt boards are opened, an operation is inconvenient, a lot of time is consumed, and evacuation is delayed.
[0005] Terrain conditions of trains under emergency conditions are different, heights of floors of the trains from the ground are different, a height of the required evacuation ladder is uncertain, for example, some floors are high and require five steps to be deployed, some floors are low and require four steps to be deployed, and adaptability of the existing emergency evacuation ladder to different heights is poor.
[0006] For example, in a side evacuation ladder of a rail vehicle and a control method thereof in the prior art, the evacuation ladder is telescopically stored in a storage box on a side of the vehicle, and can be deployed and telescoped step by step according to platform requirements. In this patent, a number of extended steps of the evacuation ladder can be adjusted according to a mounting height, but a height of each step is fixed, so that it is difficult to realize fine adjustment to reach a most suitable height. In addition, a telescoping direction of the step is perpendicular to the vehicle, so that there is a high requirement for an occupied area in an extending direction of the evacuation ladder, and meanwhile, a number of folded and stored steps is large, and occupied space is large. SUMMARY
[0007] In order to solve the above technical problems, a rail vehicle emergency evacuation device is provided in the technical solution of the present application.
[0008] An embodiment of the present application provides a rail vehicle evacuation device, including: a fixed support, a telescopic driving mechanism and a ramp body, wherein the fixed support includes fixed beams and a storage box, the fixed beams are fixed on a bottom surface of a carriage floor below a vehicle door, the storage box is fixed on the fixed beams, a storage cavity is arranged in the storage box, an access opening is arranged in a side of the storage cavity facing the vehicle door, and the ramp body and the telescopic driving mechanism are arranged in the storage cavity; the ramp body includes a sliding baseplate, a lifting mechanism, a step plate and a telescopic ramp plate, the lifting mechanism is arranged on the sliding baseplate, the step plate is arranged on the lifting mechanism, and one end of the telescopic ramp plate is movably connected to one end of the step plate; the telescopic driving mechanism is connected to the sliding baseplate of the ramp body, so that the ramp body is capable of being pushed out of the storage cavity and retracted into the storage cavity, the lifting mechanism is configured to lift the step plate, and the telescopic ramp plate deploys from the step plate to form an evacuation passage; and a skirt board is fixed on a side of the sliding baseplate facing the vehicle door, and the skirt board moves with the sliding baseplate and is configured to block the access opening after the ramp body is retracted into the storage cavity.
[0009] In some embodiments, flip cylinders are further fixedly provided on both sides of the step plate, one end of each of the flip cylinders is fixed on a cylinder seat on the step plate, the other end of the corresponding flip cylinder is movably connected to a flip connecting rod, and the other end of the flip connecting rod is movably connected to a side edge of the telescopic ramp plate; and one end of the telescopic ramp plate is pivotally connected to one end of the step plate through a pivot shaft, and the flip cylinders are configured to push the telescopic ramp plate to rotate around the pivot shaft, so as to extend the telescopic ramp plate from a state of being stacked on the step plate to a state of contacting the ground.
[0010] In some embodiments, the telescopic driving mechanism is fixed in the storage cavity, the telescopic driving mechanism includes a housing, a driving motor, a first rotating shaft and a second rotating shaft are fixedly arranged in the housing, an output end of the driving motor is connected to the first rotating shaft through a speed reducer, the second rotating shaft is connected to the first rotating shaft through a conveyor belt, and transmission rollers are fixed at two ends of each of the first rotating shaft and the second rotating shaft.
[0011] In some embodiments, slideways and guide rails are symmetrically arranged in the storage box of the fixed support, and the guide rails are arranged on inner sides of the slideways; two rows of sliding rollers are arranged on two sides of the sliding baseplate, the sliding rollers are fitted with the slideways, and the sliding rollers slide on the slideways; and a bottom surface of the sliding baseplate is provided with sliding limiting portions, the sliding limiting portions are fitted with the guide rails, and the sliding limiting portions slide on the guide rails.
[0012] In some embodiments, a first lifting mechanism groove is arranged in an upper surface of the sliding baseplate, a second lifting mechanism groove is arranged in a bottom side of the step plate, and the lifting mechanism is arranged between the first lifting mechanism groove and the second lifting mechanism groove; a first sliding groove is arranged in an inner side wall of the first lifting mechanism groove, and a second sliding groove is arranged in an inner side wall of the second lifting mechanism groove; the lifting mechanism includes lifting arms, and the lifting arms of the lifting mechanism slide in the first sliding groove and the second sliding groove.
[0013] In some embodiments, the lifting arms include a first lifting arm and a second lifting arm hinged at their middles in a crossed manner on one side, and a third lifting arm and a fourth lifting arm symmetrically hinged at their middles in a crossed manner on the other side, wherein the cross-hinged connections on both sides are connected by a common hinge shaft; and the first lifting arm and the third lifting arm each have one end fixed in the second lifting mechanism groove, and the other end of each is fixedly provided with a first pulley, and the first pulleys can move in the first sliding groove of the sliding baseplate; the second lifting arm and the fourth lifting arm each have one end fixed in the first lifting mechanism groove, the other end of each is fixedly connected to a second pulley, and the second pulleys move in the second sliding groove.
[0014] In some embodiments, the lifting mechanism is driven by a lifting cylinder or a winch.
[0015] In some embodiments, the ramp body further includes a retracting mechanism, the retracting mechanism includes rotating motors, rope winding shafts, steel wire ropes and telescopic struts, and the rotating motors, the rope winding shafts and the telescopic struts are all symmetrically arranged on two sides of the step plate; one end of each steel wire rope is fixed to the corresponding rope winding shaft, the other end of the steel wire rope penetrates through a top end of the telescopic strut on an opposite side and is fixed on the side edge of the telescopic ramp plate corresponding to the telescopic strut on the opposite side, and output ends of the rotating motors drive the rope winding shafts to rotate to tighten the steel wire ropes, so as to fold the telescopic ramp plate back onto the step plate.
[0016] In some embodiments, the retracting mechanism further includes folding connecting rods and folding cylinders, output ends of the folding cylinders are connected to the folding connecting rods, and the folding connecting rods are connected to the telescopic struts; the telescopic struts, the folding connecting rods and the folding cylinders are arranged in a first receiving groove in a side of a top surface of the step plate away from the telescopic ramp plate, and the folding cylinders drive the folding connecting rods so as to drive the telescopic struts to be folded in the first receiving groove.
[0017] An embodiment of the present application provides a rail vehicle, including the above rail vehicle evacuation device.
[0018] Compared with the prior art, the present application has the following beneficial effects.
[0019] 1. In the vehicle evacuation device according to the present application, the ramp body is flipped to a direction parallel to the vehicle through the flip cylinder and then deployed, a width of the unfolded vehicle evacuation device is a width of the step plate, a width of the evacuation passage is small, and occupied space is small.
[0020] 2. The skirt board is arranged on the ramp body, and the skirt board can be pushed out and retracted back together with the ramp body, so that when the vehicle evacuation device according to the present application is used, the skirt board does not need to be opened in advance, and an operation is more convenient.
[0021] 3. In the vehicle evacuation device according to the present application, the evacuation passage adopts the telescopic ramp plate without staged steps, the telescopic ramp plate can reach the ground at any height, the telescopic ramp plate has an extendable subplate, and an extending length of the subplate can be adjusted according to a height requirement to adjust an angle between a ramp and the ground.
[0022] 4. In the vehicle evacuation device according to the present application, since the lifting mechanism is adopted, the evacuation device has higher stability and a large lifting force, and the lifting arm is folded and then stored in the lifting mechanism groove between the step plate and the sliding baseplate, thereby greatly reducing occupied space of the evacuation device. Meanwhile, a lifting height of the lifting mechanism can be adjusted according to a ground height, so that terrain adaptability is good. After the height of the lifting mechanism is set, a predetermined height can be directly reached, thus improving an operation efficiency.
[0023] 5. In the vehicle evacuation device according to the present application, the steel wire rope in the retracting mechanism penetrates through the top end of the telescopic strut to be fixed to the side edge of the telescopic ramp plate, so that the steel wire rope forms a guardrail, and safety of pedestrians is ensured.
[0024] In order to make the above-mentioned objects, features, and advantages of the present application more apparent, preferred embodiments are described in detail hereinafter in combination with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] To describe the technical solutions in the embodiments of the present application more clearly, the following briefly describes the drawings required in the embodiments. It should be understood that the following drawings show merely some embodiments of the present application and therefore should not be considered as limiting the scope, and a person of ordinary skill in the art can still derive other related drawings from these drawings without creative efforts.
[0026] FIG. 1 shows a schematic structural diagram in which a rail vehicle evacuation device according to the present application extends on a side of a vehicle to form an evacuation passage;
[0027] FIG. 2 shows a schematic structural diagram of the rail vehicle evacuation device according to the present application;
[0028] FIG. 3 shows a schematic structural diagram of a fixed support of the rail vehicle evacuation device according to the present application;
[0029] FIG. 4 shows a schematic structural diagram of a telescopic driving mechanism of the rail vehicle evacuation device according to the present application;
[0030] FIG. 5 shows a schematic structural diagram of the telescopic driving mechanism and a conveyor belt clamp of the rail vehicle evacuation device according to the present application;
[0031] FIG. 6 shows a schematic structural diagram of a ramp body of the rail vehicle evacuation device according to the present application;
[0032] FIG. 7 shows a schematic structural diagram of a step plate of the rail vehicle evacuation device according to the present application;
[0033] FIG. 8 shows a schematic structural diagram of a sliding baseplate of the rail vehicle evacuation device according to the present application;
[0034] FIG. 9 shows a schematic structural diagram of a lifting mechanism of the rail vehicle evacuation device according to the present application;
[0035] FIG. 10 shows another schematic structural diagram of the lifting mechanism of the rail vehicle evacuation device according to the present application;
[0036] FIG. 11 shows a schematic structural diagram of a retracting mechanism of the rail vehicle evacuation device according to the present application; and
[0037] FIG. 12 shows a schematic structural diagram of the state that the rail vehicle evacuation device according to the present application is retracted at a bottom of the vehicle.
[0038] In order to enable those skilled in the art to understand and implement the present application more accurately and clearly, reference numerals are further explained below in combination with the drawings of the specification, and in the drawings:
[0039] 100-vehicle evacuation device; 200-carriage floor; 300-skirt board; 110-fixed support; 111-fixed beam; 112-storage box; 1120-storage cavity; 1121-slideway; 1122-guide rail; 1123-mounting block; 120-telescopic driving mechanism; 121-housing; 122-driving motor; 123-speed reducer; 124-first rotating shaft; 125-second rotating shaft; 126-conveyor belt; 127-transmission roller; 128-conveyor belt clamp; 130-ramp body; 131-sliding baseplate; 1311-sliding roller; 1312-sliding limiting portion; 1313-first lifting mechanism groove; 1314-first sliding groove; 132-lifting mechanism; 1321-first lifting arm; 1322-second lifting arm; 1323-third lifting arm; 1324-fourth lifting arm; 1325-hinge shaft; 1326-first pulley; 1327-second pulley; 1328-lifting cylinder; 1329-connecting rod; 1340-winch; 1341-third pulley; 1342-third steel wire rope; 1343-fixed column; 133-step plate; 1331-second lifting mechanism groove; 1332-second sliding groove; 1333-pivot shaft; 1334-first receiving groove; 1335-second receiving groove; 1336-third receiving groove; 1337-cylinder seat; 1338-rope penetrating column; 1339-rope penetrating hole; 134-flip cylinder; 135-flip connecting rod; 136-telescopic ramp plate; 1361-base plate; 1362-subplate; 137-retracting mechanism; 1371-first rotating motor; 1372-second rotating motor; 1373-first rope winding shaft; 1374-second rope winding shaft; 1375-first steel wire rope; 1376-second steel wire rope; 1377-first telescopic strut; 1378-second telescopic strut; 1379-first folding cylinder; 1380-second folding cylinder; 1381-first folding connecting rod; 1382-second folding connecting rod; 1383-third folding connecting rod; and 1384-fourth folding connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0040] The terms “including”, “comprising”, “containing” or “characterized by” in the specification, the claims and the drawings of the present application are synonymous and inclusive or open-ended and do not exclude additional unrecited elements or method steps. “Comprising” is a technical term used in the language of the claims and means that the recited elements are present, but other elements can be added and a structure or method within the scope of the claims is still formed.
[0041] It should be noted that similar reference signs and letters denote similar items in the following drawings. Therefore, once a certain item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. In addition, the terms such as “first”, “second”, “third”, or the like, are only used for distinguishing descriptions and are not intended to indicate or imply relative importance. The technical solutions in the embodiments of the present application are clearly and completely described below with reference to the drawings in the embodiments of the present application, and apparently, the described embodiments are not all but a part of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0042] The term “embodiment” mentioned herein is intended to mean that specific features, structures, or characteristics described in combination with the embodiments can be included in at least one embodiment of the present application. This term “embodiment” appearing at various places throughout the specification does not necessarily refer to the same embodiments, or independent or alternative embodiments that are mutually conflicting with other embodiments. Persons skilled in the art can explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0043] The present invention will be described in detail with reference to the following drawings and specific embodiments.
[0044] First Embodiment
[0045] An embodiment of the present application provides a rail vehicle evacuation device 100, and a deployed structure of the rail vehicle evacuation device 100 on a side of a carriage (compartment) is shown in FIG. 1. As shown in FIG. 2, the rail vehicle evacuation device 100 includes: a fixed support 110, a telescopic driving mechanism 120 and a ramp body 130, wherein the fixed support 110 includes fixed beams 111 and a storage box 112, the fixed beams are fixed on a bottom surface of a carriage floor 200 below a vehicle door, the storage box 112 is fixed on the fixed beams 111, a storage cavity 1120 is arranged in the storage box 112, an access opening is arranged in a side of the storage cavity 1120 facing the vehicle door, the side facing the vehicle door refers to a direction perpendicular to the vehicle in which passengers get off the vehicle, the ramp body 130 and the telescopic driving mechanism 120 are arranged in the storage cavity 1120, and the access opening is configured to allow the ramp body 130 to extend out and retract. The ramp body 130 includes a sliding baseplate 131, a lifting mechanism 132, a step plate 133, flip cylinders 134 and a telescopic ramp plate 136, and the telescopic driving mechanism 120 is connected to the sliding baseplate 131 of the ramp body 130, so that the ramp body 130 can be pushed out of the storage cavity 1120 and retracted into the storage cavity 1120. The lifting mechanism 132 lifts the step plate 133, and the flip cylinders 134 flip the telescopic ramp plate 136, thereby forming an evacuation passage.
[0046] In the present embodiment, the ramp body 130 is flipped to a direction parallel to the vehicle and then unfolded, a width of the unfolded rail vehicle evacuation device is a width of the step plate 133, a width of the evacuation passage is small, and occupied space is small; and a lifting arm is folded and then stored in a lifting mechanism groove between the step plate 133 and the sliding baseplate 131, thereby greatly reducing occupied space of the evacuation device. Meanwhile, the lifting mechanism 132 enables the evacuation device to have higher stability and a large lifting force.
[0047] As shown in FIG. 3, the fixed support 110 is included, and the fixed support 110 is fixed on the bottom surface of the carriage floor; and the fixed support 110 includes the fixed beams 111 and the storage box 112, and the fixed beams 111 are fixed in fixing grooves of the bottom surface of the carriage floor by bolts to firmly fix the storage box 112 to the bottom surface of the carriage floor. The storage cavity 1120 is arranged in the storage box 112, the ramp body 130 and the telescopic driving mechanism 120 are arranged in the storage cavity 1120, and the telescopic driving mechanism 120 can push the ramp body 130 out of the storage cavity 1120 and retract the ramp body into the storage cavity 1120.
[0048] As shown in FIGS. 4 to 5, the telescopic driving mechanism 120 includes a housing 121. A driving motor 122, such as a synchronous motor, is fixedly arranged in the housing 121. An output shaft of the driving motor 122 is connected to a speed reducer 123. The speed reducer 123 includes a first transmission gear arranged at an output end of the motor, and a second transmission gear meshed with the first transmission gear. The second transmission gear is non-rotatably fixed on a first rotating shaft 124, and transmission rollers 127 are fixedly arranged at both ends of the first rotating shaft 124. The first rotating shaft 124 and a second rotating shaft 125 are fixed to the housing 121. Transmission rollers 127 are fixedly arranged at both ends of the second rotating shaft 125. Conveyor belts 126 are connected between the transmission rollers 127 of the first rotating shaft 124 and the transmission rollers 127 of the second rotating shaft 125. The driving motor 122 drives the first rotating shaft 124 through the speed reducer, the first rotating shaft 124 drives the transmission rollers 127, and the transmission rollers 127 drive the conveyor belts 126, so as to drive the transmission rollers 127 at the two ends of the second rotating shaft 125, so that the conveyor belts 126 rotate between the first rotating shaft 124 and the second rotating shaft 125.
[0049] A conveyor belt clamp 128 is fixed on the conveyor belt 126, a top end of the conveyor belt clamp 128 is fixed to a lower surface of the sliding baseplate 131, and the conveyor belt 126 drives the conveyor belt clamp 128 to extend and retract after rotating with the first rotating shaft 124 and the second rotating shaft 125, so as to drive the sliding baseplate 131 to extend and retract relative to the storage box 112, so that the ramp body 130 can extend and retract in the storage box 112. When the driving motor 122 rotates forwards, the telescopic driving mechanism 120 drives the ramp body 130 to extend out of the storage box, and when the driving motor 122 rotates backwards, the telescopic driving mechanism 120 drives the ramp body 130 to retract into the storage box.
[0050] In some embodiments, the conveyor belt 126 can be a belt, a chain or a rack, and when the conveyor belt is a chain or a rack, a gear ring meshed with the chain or the rack can also be arranged outside the transmission roller 127.
[0051] In some embodiments, slideways 1121 and guide rails 1122 are further symmetrically arranged in the storage box 112 of the fixed support 110, and the guide rails 1122 are arranged on inner sides of the slideways 1121. An inner side of the guide rail 1122 is further provided with a mounting block 1123 configured to be fixed to the housing 121 of the telescopic driving mechanism 120, and a fixing manner includes, but is not limited to, threaded sleeve and bolt fixing.
[0052] As shown in FIG. 6, the ramp body 130 includes the sliding baseplate 131, the lifting mechanism 132, the flip cylinders 134, the step plate 133, the telescopic ramp plate 136 and a retracting mechanism 137. A skirt board is fixed to a front end of the sliding baseplate 131 of the ramp body 130, and the skirt board extends out with the ramp body 130 during the process in which the ramp body 130 extends out of the storage box 112 of the fixed support 110.
[0053] In the present embodiment, the skirt board 300 is fixedly connected to the sliding baseplate 131, and when the rail vehicle evacuation device is used, the skirt board 300 and the sliding baseplate 131 can move synchronously, it is avoided that the skirt board is opened first and the evacuation passage is then formed, and a skirt board storage structure is not required to be provided additionally, thereby improving an operation efficiency and meanwhile simplifying a device structure.
[0054] Two rows of sliding rollers 1311 are arranged on two sides of the sliding baseplate 131, the sliding rollers 1311 are fitted with the slideways 1121, and the sliding rollers 1311 slide on the slideways 1121. Sliding limiting portions 1312 are arranged on a bottom surface of the sliding baseplate 131, the sliding limiting portions 1312 are fitted with the guide rails 1122, and the sliding limiting portions 1312 slide on the guide rails 1122. An upper surface of the sliding baseplate 131 is provided with a first lifting mechanism groove 1313, the lifting mechanism 132 is arranged in the first lifting mechanism groove 1313, and a first sliding groove 1314 is arranged in an inner side wall of the first lifting mechanism groove 1313, as shown in FIG. 8.
[0055] As shown in FIG. 9, the lifting mechanism 132 include a first lifting arm 1321 and a second lifting arm 1322 hinged at their middles in a crossed manner on one side, and a third lifting arm 1323 and fourth lifting arm 1324 symmetrically hinged at their middles in a crossed manner on the other side, wherein a hinge shaft 1325 is shared by both sides. A connecting rod 1329 is further arranged between the first lifting arm 1321 and the third lifting arm 1323, a connecting rod 1329 is also arranged between the second lifting arm 1322 and the fourth lifting arm 1324, and the connecting rods 1329 are parallel to the hinge shaft 1325 and configured to fix a distance between the lifting arms hinged on the two sides, so that stability of the lifting mechanism is improved.
[0056] The first lifting arm 1321 and the third lifting arm 1323 each have one end fixed in a second lifting mechanism groove 1331 in a bottom surface of the step plate 133, and the other end of each is fixedly provided with a first pulley 1326, wherein the first pulleys 1326 can move in the first sliding groove 1314 of the sliding baseplate 131. The second lifting arm 1322 and the fourth lifting arm 1324 each have one end fixed in the first lifting mechanism groove 1313, and the other end of each is fixedly provided with a second pulley 1327, wherein the second pulleys 1327 can move in a second sliding groove 1332 formed or fixedly arranged in an inner side wall of the second lifting mechanism groove 1331 in the bottom surface of the step plate 133. Two lifting cylinders 1328 are fixedly arranged in the first lifting mechanism groove 1313, the lifting cylinders 1328 are arranged on a side close to the first pulley 1326, and the other ends of the two lifting cylinders 1328 are fixedly connected to the hinge shaft 1325. The two lifting cylinders 1328 can apply a pushing force to the hinge shaft 1325 to raise the lifting mechanism 132, and can apply a pulling force to the hinge shaft 1325 to lower the lifting mechanism 132.
[0057] When the lifting cylinders 1328 extend, the hinge shaft 1325 is pushed to drive the lifting arms, so that the first pulleys 1326 slide within the first sliding groove 1314 toward the fixed ends of the second lifting arm 1322 and the fourth lifting arm 1324, and the second pulleys 1327 slide within the second sliding groove 1332 toward the fixed ends of the first lifting arm 1321 and the third lifting arm 1323, thereby raising the lifting mechanism 132. When the lifting cylinders 1328 retract, the hinge shaft 1325 is driven, so that the first pulleys 1326 slide within the first sliding groove 1314 away from the fixed ends of the second lifting arm 1322 and the fourth lifting arm 1324, and the second pulleys 1327 slide within the second sliding groove 1332 away from the fixed ends of the first lifting arm 1321 and the third lifting arm 1323, thereby raising the lifting mechanism 132.
[0058] A lifting height of the lifting mechanism 132 can be adjusted according to a ground height, providing good terrain adaptability. After the height of the lifting mechanism is set, a predetermined height can be reached directly, thus improving the operation efficiency.
[0059] In some embodiments, the driving mechanism of the lifting mechanism 132 can further employ a winch 1340, a third pulley 1341 and a third steel wire rope 1342 for driving, as shown in FIG. 10. The winch 1340 and the third pulley 1341 are oppositely arranged at two ends of the second lifting mechanism groove 1331 in the bottom surface of the step plate 133. One end of the third steel wire rope 1342 is led out from the winch 1340, and the other end passes through the third pulley 1341 to be fixed on a fixed column 1343 in the first lifting mechanism groove 1313. The third pulley 1341 is fixed to a side of the second lifting mechanism groove 1331 close to the second sliding groove 1332, and the fixed column 1343 is arranged on a side in the first lifting mechanism groove 1313 close to the first sliding groove 1314. The winch 1340 drives the third steel wire rope 1342, thereby driving the lifting mechanism to raise and lower.
[0060] The step plate 133 and the telescopic ramp plate 136 are connected via a pivot shaft 1333, and the telescopic ramp plate 136 can be folded onto the step plate 133 before being deployed. A second receiving groove 1335 and a third receiving groove 1336 are provided in two sides of the step plate 133, the second receiving groove 1335 is provided in a side of the step plate close to a doorway of the rail vehicle, and the third receiving groove 1336 is provided in a side of the step plate away from the doorway of the rail vehicle. A flip cylinder 134 is fixedly arranged in each of the second receiving groove 1335 and the third receiving groove 1336, one end of the flip cylinder 134 is fixed on a cylinder seat 1337 in the second receiving groove 1335 and the third receiving groove 1336, the other end of the flip cylinder 134 is movably connected to one end of a flip connecting rod 135, and the other end of the flip connecting rod 135 is movably connected to a side edge of the telescopic ramp plate 136. The telescopic ramp plate 136 is pushed by the flip cylinders 134 to rotate about the pivot shaft 1333 from a state of stacking on the step plate 133, thereby causing the telescopic ramp plate 136 to contact the ground, as shown in FIG. 7.
[0061] The telescopic ramp plate 136 includes a base plate 1361 and a subplate 1362, and the subplate 1362 can retract in the base plate 1361 and can extend out from the base plate 1361 to abut against the ground. A length of a part of the subplate extending out of the base plate can be adjusted according to a height required by the evacuation passage, so as to adjust a slope of the evacuation passage.
[0062] In some embodiments, multi-stage subplates can be provided, and the slope of the evacuation passage is adjusted by adjusting a number of stages by which the subplates are extended.
[0063] The retracting mechanism 137 is arranged at an end of the step plate away from the telescopic ramp plate, as shown in FIG. 11. The retracting mechanism includes a first rotating motor 1371, a second rotating motor 1372, a first rope winding shaft 1373, a second rope winding shaft 1374, a first steel wire rope 1375, a second steel wire rope 1376, a first telescopic strut 1377, a second telescopic strut 1378, a first folding cylinder 1379, a second folding cylinder 1380, a first folding connecting rod 1381, and a second folding connecting rod 1382. An end of a top surface of the step plate 133 away from the pivot shaft 1333 is provided with a first receiving groove 1334, and the first telescopic strut 1377, the second telescopic strut 1378 and a steel wire rope through hole are arranged in the first receiving groove 1334. The bottom surface of the step plate 133 is provided with the first rotating motor 1371 and the second rotating motor 1372, an output end of the first rotating motor 1371 is connected to the first rope winding shaft 1373, and an output end of the second rotating motor 1372 is connected to the second rope winding shaft 1374. The first steel wire rope 1375 is slidably supported at a top end of the second telescopic strut 1378, one end of the first steel wire rope 1375 is fixed on a side edge of the telescopic ramp plate 136 corresponding to the second telescopic strut 1378, and the other end passes through the steel wire rope through hole to be fixed on the first rope winding shaft 1373. The second steel wire rope 1376 is slidably supported at a top end of the first telescopic strut 1377, one end of the second steel wire rope 1376 is fixed on a side edge of the telescopic ramp plate 136 corresponding to the first telescopic strut 1377, and the other end passes through the steel wire rope through hole to be fixed on the second rope winding shaft 1374. Rotation of the rotating motor can drive the rope winding shaft to rotate, thereby tightening the steel wire rope and folding the telescopic ramp plate 136 back onto the step plate 133. In addition, the steel wire rope on a side of the telescopic ramp plate also plays a role of a guardrail, so that people can be prevented from falling off the evacuation device in a panic state.
[0064] In some embodiments, the first telescopic strut 1377 is located on a side of the step plate 133 away from a door exit of the rail vehicle, and the second telescopic strut 1378 is located on a side of the step plate 133 close to the door exit of the rail vehicle. A rope penetrating column 1338 is further arranged in the second receiving groove 1335 of the step plate 133 and located on a rear side of the cylinder seat 1337, a through hole is arranged in the rope penetrating column 1338, and a rope penetrating hole 1339 is arranged in a side plate of the second receiving groove 1335 near one end of the pivot shaft 1333. After passing through the top end of the second telescopic strut 1378, the first steel wire rope 1375 passes through the rope penetrating column 1338 and the rope penetrating hole 1339 in the second receiving groove 1335 and is fixed to the side edge of the telescopic ramp plate 136 close to the vehicle door. Therefore, the first steel wire rope 1375 forms an inclined guardrail at an end of the step plate 133 away from the telescopic ramp plate 136, and is located in the second receiving groove 1335 at the exit of the rail vehicle, walking of pedestrians is not affected, and meanwhile, when the first steel wire rope 1375 is tightened, folding of the telescopic ramp plate 136 can be smoothly driven. The state that the rail vehicle evacuation device is folded and stored on the carriage floor is shown in FIG. 12.
[0065] The first telescopic strut 1377 and the second telescopic strut 1378 are foldable. A first folding cylinder 1379 and a second folding cylinder 1380, as well as symmetrically arranged folding connecting rods, are symmetrically arranged in the first receiving groove 1334. The folding connecting rods on one side include the first folding connecting rod 1381 and the second folding connecting rod 1382, and the folding connecting rods on the other side include a third folding connecting rod 1383 and a fourth folding connecting rod 1384. An output end of the first folding cylinder 1379 is movably connected to the first folding connecting rod 1381, the first folding connecting rod 1381 is movably connected to the second folding connecting rod 1381, and the second folding connecting rod 1381 is fixed onto the first telescopic strut 1377. An output end of the second folding cylinder 1380 is movably connected to the third folding connecting rod 1383, the third folding connecting rod 1383 is movably connected to the fourth folding connecting rod 1384, and the fourth folding connecting rod 1384 is fixed onto the second telescopic strut 1378. The folding connecting rod is driven by the action of the folding cylinder, so that the first telescopic strut 1377 and the second telescopic strut 1378 can be folded in the first receiving groove 1334. In some embodiments, the telescopic strut can be a cylinder, or the like.
[0066] The rail vehicle of the present application is capable of deploying the rail vehicle evacuation device at the bottom of the carriage in an emergency to form an evacuation passage. First, the telescopic driving mechanism 120 can extend the ramp body 130 together with the skirt board 300 from under the carriage floor. Then, the retracting mechanism 137 deploys, the lifting mechanism 132 lifts the step plate 133, the flip cylinder 134 flips the telescopic ramp plate 136, and meanwhile, the subplate 1362 abuts against the ground, so that passengers can get to a mounting position from a ramp. In some embodiments, a slope surface width of the ramp body 130 can be 0.6m, a length of the step plate 133 and the telescopic ramp plate 136 is 1.4m, the width refers to a length of a side perpendicular to an advancing direction of the vehicle, and the length refers to a length of a side parallel to the advancing direction of the vehicle, which can enable the slope of the evacuation passage to reach 30 degrees, resulting in a comfortable walking slope.
[0067] The above is a detailed introduction to the embodiments of the present application, and the specific examples herein are utilized to illustrate the principles and embodiments of the application. The description of the embodiments above is designed to assist in understanding the method and ideas of the present application. However, persons skilled in the art could, based on the ideas in the application, make alterations to the specific embodiments and application scope, and thus the content of the present specification should not be construed as placing limitations on the present application.
Claims
1. A rail vehicle evacuation device, comprising: a fixed support, a telescopic driving mechanism and a ramp body, wherein the fixed support comprises fixed beams and a storage box, the fixed beams are fixed on a bottom surface of a carriage floor below a vehicle door, the storage box is fixed on the fixed beams, a storage cavity is provided in the storage box, an access opening is arranged in a side of the storage cavity facing the vehicle door, and the ramp body and the telescopic driving mechanism are arranged in the storage cavity;characterized in thatthe ramp body comprises a sliding baseplate, a lifting mechanism, a step plate and a telescopic ramp plate, the lifting mechanism is arranged on the sliding baseplate, the step plate is arranged on the lifting mechanism, and one end of the telescopic ramp plate is movably connected to one end of the step plate; the telescopic driving mechanism is connected to the sliding baseplate of the ramp body, so that the ramp body is capable of being pushed out of the storage cavity and retracted into the storage cavity, the lifting mechanism is configured to lift the step plate, and the telescopic ramp plate deploys from the step plate to form an evacuation passage; anda skirt board is fixed on a side of the sliding baseplate facing the vehicle door, and the skirt board moves with the sliding baseplate and is configured to block the access opening after the ramp body is retracted into the storage cavity.
2. The rail vehicle evacuation device according to claim 1, wherein flip cylinders are further fixedly provided on both sides of the step plate, one end of each of the flip cylinders is fixed on a cylinder seat on the step plate, the other end of the corresponding flip cylinder is movably connected to a flip connecting rod, and the other end of the flip connecting rod is movably connected to a side edge of the telescopic ramp plate; and one end of the telescopic ramp plate is pivotally connected to one end of the step plate through a pivot shaft, and the flip cylinders are configured to push the telescopic ramp plate to rotate around the pivot shaft, so as to extend the telescopic ramp plate from a state of being stacked on the step plate to a state of contacting the ground.
3. The rail vehicle evacuation device according to claim 1, wherein the telescopic driving mechanism is fixed in the storage cavity, the telescopic driving mechanism comprises a housing, a driving motor, a first rotating shaft and a second rotating shaft are fixedly arranged in thehousing, an output end of the driving motor is connected to the first rotating shaft through a speed reducer, the second rotating shaft is connected to the first rotating shaft through a conveyor belt, and transmission rollers are fixed at two ends of each of the first rotating shaft and the second rotating shaft.
4. The rail vehicle evacuation device according to claim 1, wherein slideways and guide rails are symmetrically arranged in the storage box of the fixed support, and the guide rails are arranged on inner sides of the slideways; andtwo rows of sliding rollers are arranged on two sides of the sliding baseplate, the sliding rollers are fitted with the slideways, and the sliding rollers slide on the slideways; a bottom surface of the sliding baseplate is provided with sliding limiting portions, the sliding limiting portions are fitted with the guide rails, and the sliding limiting portions slide on the guide rails.
5. The rail vehicle evacuation device according to claim 1, wherein a first lifting mechanism groove is arranged in an upper surface of the sliding baseplate, a second lifting mechanism groove is arranged in a bottom side of the step plate, and the lifting mechanism is arranged between the first lifting mechanism groove and the second lifting mechanism groove; a first sliding groove is arranged in an inner side wall of the first lifting mechanism groove, and a second sliding groove is arranged in an inner side wall of the second lifting mechanism groove; the lifting mechanism comprises lifting arms, and the lifting arms of the lifting mechanism slide in the first sliding groove and the second sliding groove.
6. The rail vehicle evacuation device according to claim 5, wherein the lifting arms comprise a first lifting arm and a second lifting arm hinged at their middles in a crossed manner on one side, and a third lifting arm and a fourth lifting arm symmetrically hinged at their middles in a crossed manner on the other side, wherein the cross-hinged connections on both sides are connected by a common hinge shaft; the first lifting arm and the third lifting arm each have one end fixed in the second lifting mechanism groove, and the other end of each is fixedly provided with a first pulley, and the first pulleys are able to move in the first sliding groove of the sliding baseplate; the second lifting arm and the fourth lifting arm each have one end fixed in the first lifting mechanism groove, the other end of each is fixedly connected to a second pulley, and the second pulleys move in the second sliding groove.
7. The rail vehicle evacuation device according to claim 6, wherein the lifting mechanism is driven by a lifting cylinder or a winch.
8. The rail vehicle evacuation device according to any one of claims 1 to 7, wherein the ramp body further comprises a retracting mechanism, the retracting mechanism comprises rotating motors, rope winding shafts, steel wire ropes and telescopic struts, and the rotating motors, the rope winding shafts and the telescopic struts are all symmetrically arranged on two sides of the step plate; one end of each steel wire rope is fixed to the corresponding rope winding shaft, the other end of the steel wire rope penetrates through a top end of the telescopic strut on an opposite side and is fixed on the side edge of the telescopic ramp plate corresponding to the telescopic strut on the opposite side, and output ends of the rotating motors drive the rope winding shafts to rotate to tighten the steel wire ropes, so as to fold the telescopic ramp plate back onto the step plate.
9. The rail vehicle evacuation device according to claim 8, wherein the retracting mechanism further comprises folding connecting rods and folding cylinders, output ends of the folding cylinders are connected to the folding connecting rods, and the folding connecting rods are connected to the telescopic struts; the telescopic struts, the folding connecting rods and the folding cylinders are arranged in a first receiving groove in a side of a top surface of the step plate away from the telescopic ramp plate, and the folding cylinders drive the folding connecting rods so as to drive the telescopic struts to be folded in the first receiving groove.
10. A rail vehicle comprising the rail vehicle evacuation device according to any one of claims 1 to 9.