WO2023284225A1 - 一种地板装置及轨道车辆 - Google Patents

一种地板装置及轨道车辆 Download PDF

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Publication number
WO2023284225A1
WO2023284225A1 PCT/CN2021/133417 CN2021133417W WO2023284225A1 WO 2023284225 A1 WO2023284225 A1 WO 2023284225A1 CN 2021133417 W CN2021133417 W CN 2021133417W WO 2023284225 A1 WO2023284225 A1 WO 2023284225A1
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WO
WIPO (PCT)
Prior art keywords
floor
assembly
side wall
bottom plate
pipeline
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Application number
PCT/CN2021/133417
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English (en)
French (fr)
Inventor
张建敏
郭会生
傅振亮
刘晨辉
张丽博
Original Assignee
中车唐山机车车辆有限公司
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Application filed by 中车唐山机车车辆有限公司 filed Critical 中车唐山机车车辆有限公司
Publication of WO2023284225A1 publication Critical patent/WO2023284225A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/10—Floors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/08—Sides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/18—Internal lining, e.g. insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F1/00—Underframes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings

Definitions

  • the present application relates to rail vehicle technology, in particular, to a floor device and a rail vehicle.
  • Rail vehicle is an ordinary passenger car floor assembly, which mainly includes aluminum alloy car body chassis, ground beams are made of rubber piles or wooden bones, heat insulation materials are ordinary glass wool, polyester fiber, etc., and the through holes are sealed with foaming agent. Due to the cost or technical requirements of the cold-proof material, only the theoretical heat insulation performance is considered, and when the floor assembly is removed to catch fire or pass through the fire scene, the floor assembly is deformed under high temperature conditions, and the load-bearing energy absorption of the floor assembly at high temperature cannot be guaranteed; and The floor components have poor fire resistance and energy absorption, cannot withstand high temperature baking, and the heat insulation performance cannot meet the test requirements.
  • the embodiment of the present application provides a floor device and a rail vehicle to solve the problem that the existing floor components are bent and deformed at high temperature, and the rigidity is insufficient to protect the safety of personnel and equipment in the vehicle.
  • a floor system comprising:
  • the floor assembly is used to provide support for the vehicle body
  • Insulation layer used to isolate the heat above and below the car body
  • the interior floor is used to provide support for the personnel and equipment in the vehicle, and the bottom plate assembly, the heat insulation layer, and the interior floor are arranged in sequence from bottom to top;
  • a ground beam is fixedly connected to the floor assembly, and the ground beam is provided under the interior floor for support;
  • auxiliary support assemblies fixed on both sides of the floor assembly in the width direction are used for fixed connection with the side walls of the vehicle body, so as to provide the floor assembly with deformation resistance rigidity.
  • the auxiliary support assembly is arranged vertically to the floor assembly, and the auxiliary support assembly includes:
  • the first auxiliary support side wall and the second auxiliary support side wall are respectively fixed above the floor assembly, and the first auxiliary support side wall and the second auxiliary support side wall are respectively fixed above the floor assembly.
  • the second auxiliary supporting side walls are respectively welded and fixed to the side walls of the vehicle body;
  • the first auxiliary supporting side wall, the base plate assembly and the second auxiliary supporting side wall form a U-shaped cavity.
  • it also includes:
  • a first fireproof expansion sealant layer, the first fireproof expansion sealant layer is provided at the joint between the first auxiliary support side wall and the bottom plate assembly;
  • a second fireproof expansion sealant layer, the second fireproof expansion sealant layer is arranged at the joint between the second auxiliary support side wall and the bottom plate assembly.
  • the base plate assembly includes:
  • underframe floor An integrally arranged underframe floor, the underframe floor being welded above the underframe;
  • the first auxiliary support side wall is respectively welded and fixed to the side beam of the underframe and the side beam of the underframe floor, and the first fireproof expansion sealant layer is respectively covered on the weld seam, and along the weld seam continuous setting;
  • the second auxiliary supporting side wall is respectively welded and fixed to the side beam of the underframe and the side beam of the underframe floor, and the second fireproof expansion sealant layer is respectively covered on the weld seam, and along the weld seam continuous setting.
  • it also includes:
  • a fireproof expansion coating is arranged on the inner bottom wall or the outer bottom wall of the chassis; and/or, the fireproof expansion coating is arranged on the inner bottom wall or the outer bottom wall of the chassis floor on the bottom wall.
  • it also includes a pipeline installation assembly for passing the pipeline to connect the upper part of the vehicle body and the lower part of the vehicle body, and the pipeline installation assembly includes:
  • a pipeline installation sleeve the pipeline installation sleeve is provided with a first through hole for the pipeline assembly to pass through;
  • a first fireproof expansion sealing layer, the first fireproof expansion sealing layer is arranged in the first through hole, so as to block the gap between the first through hole and the pipeline complex when heated and expanded.
  • the pipeline installation assembly also includes:
  • the Z-shaped pipeline mounting seat is provided with a second through hole for the Z-shaped pipeline to pass through, the Z-shaped pipeline mounting seat is fixed with the base plate assembly, and the Z-shaped pipeline mounting seat is located on The corner of the Z-shaped pipeline;
  • the Z-shaped pipeline installation seat includes a first side wall and a second side wall, the first side wall is used to be attached to the horizontal side wall of the Z-shaped pipeline, and the second side wall is connected to the upper surface of the bottom plate assembly Surface bonding;
  • the second fireproofing expansion sealing layer, the second fireproofing layer is respectively provided between the second side wall of the Z-shaped pipeline installation seat and the upper surface of the bottom plate assembly, between the bottom surface of the bottom plate assembly and the Z-shaped pipeline. Expansive plugging layer.
  • the ground beam is fixed to the floor assembly by welding
  • the ground beam is a U-shaped ground beam
  • the heat insulation layer is embedded in the U-shaped cavity of the U-shaped ground beam, and the upper surface of the heat insulation layer is attached to the inner top wall of the U-shaped ground beam , the outer top wall of the U-shaped ground beam is attached to the lower wall of the interior floor for support;
  • the distance between the outer top wall of the U-shaped ground beam and the chassis floor is greater than the distance between the upper surface of the heat insulation layer and the chassis floor.
  • the floor assembly is a concave floor assembly
  • the ground beam is a concave floor beam
  • the concave floor beam is correspondingly arranged above the concave floor assembly
  • the heat insulation layer Filling between the concave ground beam and the concave floor assembly, the ground beam and the bottom plate assembly are welded and fixed;
  • An adjustment pad is arranged between the upper surface of the ground beam and the interior floor, to level the interior floor; the adjustment pad is a rubber or PVC or wooden adjustment pad.
  • the heat insulation layer is a rock wool heat insulation layer or a glass wool heat insulation layer.
  • a floor device provided in the embodiment of the present application includes: a floor assembly, used to provide support for the vehicle body; a heat insulation layer, used to isolate the heat above and below the vehicle body; Provide support for internal personnel and equipment, floor components, heat insulation layer, and interior floor are arranged in sequence from bottom to top; ground beams are fixedly connected with the floor assembly, and ground beams are set under the interior floor for support; The auxiliary support assembly on the side is used for fixed connection with the side wall of the car body to provide the anti-deformation rigidity for the floor assembly.
  • the application of the floor device provided by this application has the following technical effects:
  • the present application also provides a rail vehicle, including the side wall of the car body and cables, and also includes the floor device of any one of the above-mentioned embodiments, the side wall of the auxiliary support component of the floor device is attached to the side wall of the car body, and fixed by welding
  • the bottom plate assembly of the floor device is welded and fixed to the side wall of the car body; the cable passes through the bottom plate assembly, and a wire is arranged inside the cable, and a fireproof expansion sealing layer is arranged between the wire and the cable. Since the above-mentioned floor device has the above-mentioned technical effect, the rail vehicle having the floor device should also have the corresponding technical effect.
  • the rail vehicle is a double-deck rail vehicle
  • the middle floor and the sub-floor of the double-deck rail vehicle are the floor devices described in any one of the above embodiments.
  • FIG. 1 is a schematic structural diagram of a floor device provided in an embodiment of the present application.
  • Fig. 2 is a partial enlarged structural schematic diagram of the Z-shaped pipeline mounting seat in Fig. 1;
  • Fig. 3 is a schematic structural diagram of a floor device provided by another embodiment of the present application.
  • FIG. 4 is a schematic diagram of a partially enlarged structure of FIG. 3 .
  • Underframe 1 underframe floor 2, heat insulation layer 3, interior floor 4, ground beam 5, floor cloth 6, pipeline 7, first fireproof expansion sealing layer 8, wire harness 9, pipeline installation sleeve 10, cable 11 , Z-shaped pipeline 12, Z-shaped pipeline mounting seat 13, auxiliary support assembly 14, fireproof expansion sealing coating 15, second fireproof expansion sealing layer 16, trunking 17, adjustment pad 18, fireproof expansion sealant layer 19.
  • FIG. 1 is a schematic structural diagram of a floor device provided by the embodiment of the present application
  • Fig. 2 is a schematic diagram of a partially enlarged structure of the Z-shaped pipeline installation seat 13 in Fig. 1
  • Fig. 3 is another schematic diagram of the present application
  • FIG. 4 is a partially enlarged structural schematic diagram of FIG. 3 .
  • the embodiment of the present application provides a floor device, including a floor assembly, a heat insulation layer 3 , an interior floor 4 , a ground beam 5 and an auxiliary support assembly 14 .
  • the floor assembly includes an underframe 1 and an underframe floor 2 .
  • the underframe 1 supports the vehicle and is the rigidity receiving body of the entire vehicle, generally made of aluminum alloy or steel.
  • the underframe floor 2 is integrally welded or integrally arranged to separate the inside of the car body from the outside of the car body, and to support the parts on the car body floor.
  • the heat insulation layer 3 is generally arranged on the top of the floor assembly, and is welded and fixed to it to insulate the heat inside and outside the car body.
  • the heat insulation layer 3 can be set as glass wool, a heat insulation material with high heat insulation performance and high ignition point. Or rock wool.
  • the interior floor 4 is arranged above the heat insulation layer 3 to provide support for the personnel and equipment in the vehicle; preferably, the floor cloth 6 is glued on the top, and the bottom of the interior floor 4 is fixed to the ground beam 5 by bonding or fasteners.
  • the ground beam 5 is fixedly connected with the floor assembly, such as welding, and is used to support the interior floor 4 and has a certain heat insulation effect.
  • Auxiliary support assemblies 14 are provided on both sides of the floor assembly in the width direction, and the auxiliary support assemblies 14 are fixedly connected with the side walls of the vehicle body, such as by welding or threaded fasteners.
  • the auxiliary support component 14 is preferably welded and fixed with the bottom plate component to form an integral body, and provides rigidity against deformation for the bottom plate component.
  • the auxiliary support assembly 14 and the bottom plate assembly are vertically arranged, and the height of the auxiliary support assembly 14 is preferably less than one meter, so as to further provide rigidity for the bottom plate assembly and prevent the bottom plate assembly from bending deformation under high temperature and load-bearing conditions.
  • auxiliary support assembly 14 can be arranged above or below the floor assembly, based on the different positions where the floor assembly is installed on the car body.
  • the assembly 14 can be arranged in any direction of the floor assembly; when the floor device is used as the bottom floor of a double-deck rail vehicle, the auxiliary support assembly 14 is preferably arranged above the floor assembly to optimize the installation space.
  • the application of the floor device provided by this application has the following technical effects:
  • the auxiliary support assembly 14 includes a first auxiliary support side wall and a second auxiliary support side wall.
  • the first auxiliary support side wall and the second auxiliary support side wall are respectively fixed above the floor assembly, and the first auxiliary support side wall and the second auxiliary support side wall are respectively welded and fixed to the vehicle body side wall; the first auxiliary support side
  • the wall is continuously arranged along the length direction of the bottom plate assembly.
  • the second auxiliary supporting side wall is continuously arranged along the length direction of the bottom plate assembly to improve the deformation resistance of the bottom plate assembly.
  • the first auxiliary support side wall and the second auxiliary support side wall are respectively welded and fixed to the side wall of the vehicle body.
  • the reaction force and rigidity are provided by the first auxiliary support side wall and the second auxiliary support side wall. , to prevent bending deformation of the base plate assembly.
  • the first auxiliary support side wall, the bottom plate assembly and the second auxiliary support side wall form a U-shaped cavity, which has a stable structure and good bending and deformation resistance.
  • the shapes of the first auxiliary support side wall and the second auxiliary support side wall can be set according to the cross-sectional shape of the side wall of the vehicle body. The contact area of the side wall of the body further increases the maximum reaction force against the deformation tension of the base plate assembly.
  • a fireproof expansion sealant layer 19 is provided at the joint between the auxiliary support assembly 14 and the floor assembly.
  • the fireproof collision sealant layer 19 is When heated, it expands to block the gap at the joint, further isolate the fire source and heat, prolong the fire resistance time of the floor device in the fire field, and improve the fire resistance.
  • first fireproof expansion sealant layer and a second fireproof expansion sealant layer
  • first fireproof expansion sealant layer is arranged at the joint between the first auxiliary support side wall and the bottom plate assembly
  • second fireproof expansion sealant layer It is arranged at the joint between the second auxiliary supporting side wall and the base plate assembly.
  • the floor assembly includes a chassis and a chassis floor 2 integrally arranged; the chassis floor 2 is welded above the chassis 1; The side beams of the floor 2 are welded and fixed, and the first fire-proof expansion sealant layer is arranged at the welding seam of the first auxiliary support side wall and the side beam of the underframe 1, and at the edge of the first auxiliary support side wall and the underframe floor 2
  • the welding seams of the beams are all arranged continuously along the length direction of each welding seam; similarly, the second auxiliary support side wall is welded and fixed to the side beams of the chassis 1 and the side beams of the chassis floor 2 respectively, and the second fire protection
  • the expansion sealant layer is respectively covered on each welding seam, and is arranged continuously along the welding seam.
  • the above-mentioned floor device also includes a fire-proof expansion coating 15, and the fire-proof expansion coating 15 is arranged on the inner bottom wall or the outer bottom wall of the chassis 1; and/or, the fire-proof expansion coating
  • the layer 15 is arranged on the inner bottom wall or the outer bottom wall of the chassis floor 2, and the location of the fireproof expansion coating 15 is set based on the difference in material of the chassis 1 and the chassis floor 2.
  • the fireproof expansion coating 15 is thermally expanded in the fire field, which isolates the influence of the fire field on the base plate assembly, and further improves the fire resistance of the floor device.
  • the above-mentioned floor device also includes a pipeline installation component, which is used for the pipeline to pass through to connect the upper part of the vehicle body and the lower part of the vehicle body.
  • a pipeline installation component which is used for the pipeline to pass through to connect the upper part of the vehicle body and the lower part of the vehicle body.
  • electric wire harness 9 etc. the pipeline runs through from the bottom of the car body to the top of the car body, preferably made of stainless steel or carbon steel, ventilated in the pipe or through wires and cables.
  • the pipeline installation assembly includes a pipeline installation sleeve 10 and a first fireproof expansion sealing layer 8, and the pipeline installation sleeve 10 is provided with a first through hole for passing through the pipeline assembly; the pipeline installation sleeve 10 is welded and fixed with the bottom plate assembly, it can be understood that , There are installation holes on the bottom plate assembly to facilitate the passage of pipelines.
  • the pipeline installation sleeve 10 is arranged in the installation hole and is welded in its circumferential direction. Generally, it is welded on the chassis floor 2. There are gaps, holes, etc. between the pipeline installation sleeve 10 and the integrated pipeline in the first through hole.
  • the first fireproof expansion sealing layer 8 is set in the first through hole, so that when it is heated and expanded, it blocks the gap between the first through hole and the pipeline installation sleeve 10, and has fire resistance to block
  • the two ends of the pipeline installation sleeve 10 prevent fire or heat from entering the interior of the vehicle body through the first through hole.
  • the normal state is 0.8-1.2mm thick, and it expands 150 times after being heated.
  • the pipeline installation assembly further includes a Z-shaped pipeline installation seat 13 and a second fireproof expansion sealing layer 16 .
  • the Z-shaped pipeline 12 includes two first pipelines arranged in parallel and a second pipeline arranged perpendicularly to the first pipeline, and the Z-shaped pipeline installation seat 13 is provided with a second through hole for the Z-shaped pipeline 12 to pass through.
  • the Z-shaped pipeline mounting seat 13 is fixed with the base plate assembly, such as welding, the Z-shaped pipeline mounting seat 13 is located at the corner of the Z-shaped pipeline 12; that is, the connection between the first pipeline and the second pipeline, and the Z-shaped pipeline is installed
  • the seat 13 includes a first side wall and a second side wall, the first side wall is used for bonding with the horizontal side wall of the Z-shaped pipeline 12, and the second side wall is bonded with the upper surface of the bottom plate assembly; thereby setting, eliminating two The gap between them allows heat or fire source to pass through, forming a fireproof sealing structure, so that even if heat or fire source passes through the second fireproof expansion sealing layer between the bottom surface of the bottom plate assembly and the Z-shaped pipeline, it can also pass through the first side wall , the second side wall, the horizontal side wall of the Z-shaped pipeline 12 and the upper surface of the bottom plate assembly for sealing.
  • the first side wall and the peripheral side wall of the second pipeline are attached to provide support for the installation of the Z-shaped pipeline 12 .
  • a second fire protection device is provided between the second side wall of the Z-shaped pipeline mounting base 13 and the bottom plate assembly, between the bottom plate assembly and the Z-shaped pipeline 12 Expansion sealing layer 16; based on the specific structure of the Z-shaped pipeline installation seat 13, it is inconvenient to set the second fire-proof expansion sealing layer 16 between the first through hole and the Z-shaped pipeline 12, so the bottom plate assembly and the Z-shaped pipeline 12 A second fireproof expansion sealing layer 16 is set between them; in order to prevent the fire source or heat from entering the interior of the car body from the gap between the upper surface of the second sidewall and the floor assembly, a second fireproof expansion is set between the second sidewall and the floor assembly Blocking layer 16.
  • the ground beam 5 is welded and fixed to the floor assembly, generally welded on the chassis floor 2, and is located below the interior floor 4 for support;
  • the ground beam 5 is a U-shaped ground beam 5, and the heat insulation layer 3 is embedded In the U-shaped cavity of the U-shaped ground beam, the upper surface of the heat insulation layer 3 is attached to the inner top wall of the U-shaped ground beam, and the outer top wall of the U-shaped ground beam is attached to the lower wall of the interior floor 4 for support;
  • the distance between the outer top wall of the U-shaped ground beam and the chassis floor 2 is greater than the distance between the upper surface of the heat insulation layer 3 and the chassis floor 2, so as to separate the interior floor 4 and the bottom plate assembly for heat insulation.
  • the U-shaped cavity of the U-shaped ground beam 5 is filled with a heat insulating layer 3 so that no hollow cavity exists between the U-shaped ground beam 5 and the floor assembly, and the heat insulating effect is further improved by filling the heat insulating layer 3 .
  • the ground beam 5 supports the interior floor 4 to ensure that the thickness and state of the heat insulation layer 3 are not affected, and that the heat insulation layer 3 is always in a heat insulation state.
  • the specific operation process is as follows: when a fire breaks out under the vehicle or passes through the fire field, the chassis 1 and the chassis floor 2 are first roasted by the heat of the fire field, and the fireproof expansion coating expands when heated, isolating the direct contact of the fire field with the bottom plate components, and isolating or slowing down the fire. The temperature of the fire site is transferred to the bottom plate assembly;
  • the pipeline 7 in the pipeline assembly is affected by heat, and the pipeline 7 is made of stainless steel or carbon steel, which can prevent fire/heat from reaching the car through the pipeline; the first fireproof expansion sealing layer 8 between the pipeline 7 and the pipeline installation sleeve 10 After being heated, the expansion is filled with the pipeline installation sleeve 10, and the source of fire or heat is transmitted from the gap between the pipeline 7 and the pipeline installation sleeve 10 to the vehicle; The gaps produced after the skin is burned are sealed by the first fireproof expansion sealing layer 8 after being heated, so as to isolate heat or fire source;
  • the cable 11 in the pipeline complex when the cable 11 in the pipeline complex is affected by heat, the cable 11 has a metal wire mesh on its skin and several bundles/wires inside, and the wire skin is combustible non-metal; there are gaps between the wire combinations inside the cable 11.
  • the internal voids or the voids generated by the burning of the wire skin are sealed by the first fireproof expansion sealing layer 8 after being heated, which blocks the spread or intrusion of heat/fire source;
  • the first fireproof expansion sealing layer 8 will expand to fill the gap here, and block the gap where the fire/heat passes into the vehicle.
  • the floor device can resist the attack of the fire field on the components in the floor assembly for a long time, protect the personnel or equipment in the car from the fire field, and ensure the safety of the car body floor assembly under high temperature conditions.
  • Non-deformable performance, good fire resistance and fire resistance can be applied to the middle floor of the lead car and trailer of double-deck rail vehicles.
  • the floor assembly, the heat insulation layer 3, the ground beam 5 and the interior floor 4 are sequentially arranged from bottom to top Setting; the ground beam 5 and the base plate assembly are fixed by welding, such as full welding.
  • the floor assembly is a concave floor assembly
  • the ground beam 5 is a concave floor beam
  • the concave floor beam is correspondingly arranged above the concave floor assembly, that is, the groove portion of the concave floor beam and the groove portion of the concave floor assembly
  • the heat insulation layer 3 is filled between the concave ground beam and the concave floor assembly, and the ground beam 5 is laid on the top of the heat insulation layer 3; the ground beam and the 5 floor assembly are welded and fixed; in view of the laying structure of the ground beam 5, in order to be able to
  • the built-in floor 4 is leveled, and the above-mentioned floor device also includes:
  • Adjustment pad 18 the adjustment pad 18 is located between the upper surface of the ground beam 5 and the interior floor 4, in order to level the interior floor 4; the adjustment pad 18 is a rubber or PVC or wooden adjustment pad.
  • the heat insulation layer 3 can be set as a rock wool heat insulation layer 3 with high density and high heat insulation.
  • a wire slot 17 is arranged in the heat insulation layer 3, and the wire slot 17 and the ground beam 5 are welded and fixed for installing wires or cables 11, and the contact of dissimilar metals can be separated by spraying paint.
  • the wire slot 17 can also be used Fill the fire-proof intumescent sealing layer to further optimize the fire-proof performance of the floor installation.
  • the heat insulation layer 3 is a rock wool heat insulation layer 3 or a glass wool heat insulation layer 3 .
  • the application provides a rail vehicle, including the side wall of the car body and the cable 11, and also includes the floor device of any one of the above-mentioned embodiments, the side wall of the auxiliary support assembly 14 of the floor device is attached to the side wall of the car body, and fixed by welding
  • the bottom plate assembly of the floor device is welded and fixed to the side wall of the car body; the cable 11 passes through the bottom plate assembly, and the inside of the cable 11 is provided with a wire, and a fireproof expansion sealing layer is provided between the wire and the cable 11. In this way, the gaps, holes, holes and gaps between the cables 11 and the electric wires after the floor device is perforated are blocked, so as to improve the fireproof and fire-resistant integrity of the rail vehicle.
  • the rail vehicle is a double-deck rail vehicle
  • the middle floor and the sub-floor of the double-deck rail vehicle are the floor devices of any one of the above-mentioned embodiments.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.

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Abstract

一种地板装置及轨道车辆，地板装置包括：底板组件，用于为车体提供支撑；隔热层（3），用于隔绝车体上方和车体下方的热量；内装地板（4），用于为车内人员及设备提供支撑，底板组件、隔热层（3）、内装地板（4）自下至上依次设置；地梁（5），与底板组件固定连接，地梁（5）设于内装地板（4）的下方进行支撑；固定于底板组件宽度方向的两侧的辅助支撑组件（14），用于与车体侧墙固定连接，以为底板组件提供抗变形刚度。

Description

一种地板装置及轨道车辆 技术领域
本申请涉及轨道车辆技术，具体地，涉及一种地板装置及轨道车辆。
背景技术
轨道车辆一种普通客车地板组件，主要包括铝合金车体底架，地梁采用橡胶堆组成或木骨，隔热材料为普通玻璃棉、聚酯纤维等，贯穿孔采用发泡剂密封。防寒材由于成本或技术要求问题，仅考虑了理论的隔热性能，而底板组件当撤下起火或经过火场时，地板组件在高温条件下变形，无法保证高温下地板组件的承重吸能；且地板组件耐火吸能差，不能承受高温炙烤，隔热性能无法满足测试要求。
发明内容
本申请实施例中提供了一种地板装置及轨道车辆，以解决现有的地板组件在高温下发生弯曲变形，刚度不足，无法保护车内人员及设备安全。
一种地板装置，包括：
底板组件，用于为车体提供支撑；
隔热层，用于隔绝车体上方和车体下方的热量；
内装地板，用于为车内人员及设备提供支撑，所述底板组件、所述隔热层、所述内装地板自下至上依次设置；
地梁，与所述底板组件固定连接，所述地梁设于所述内装地板的下方进行支撑；
固定于所述底板组件宽度方向的两侧的辅助支撑组件，用于与车体侧墙固定连接，以为所述底板组件提供抗变形刚度。
在一些可选的实现方式中，所述辅助支撑组件与所述底板组件垂直设置， 所述辅助支撑组件包括：
第一辅助支撑侧墙和第二辅助支撑侧墙，所述第一辅助支撑侧墙和所述第二辅助支撑侧墙分别固定于所述底板组件的上方，所述第一辅助支撑侧墙和所述第二辅助支撑侧墙分别与车体侧墙焊接固定；
所述第一辅助支撑侧墙、所述底板组件和所述第二辅助支撑侧墙形成U形腔体。
在一些可选的实现方式中，还包括：
第一防火膨胀密封胶层，所述第一防火膨胀密封胶层设于所述第一辅助支撑侧墙与所述底板组件间的连接处；
第二防火膨胀密封胶层，所述第二防火膨胀密封胶层设于所述第二辅助支撑侧墙与所述底板组件间的连接处。
在一些可选的实现方式中，所述底板组件包括：
底架；
一体式设置的底架地板，所述底架地板焊接于所述底架上方；
所述第一辅助支撑侧墙分别与所述底架的边梁和所述底架地板的边梁焊接固定，所述第一防火膨胀密封胶层分别覆于焊缝的上方，且沿焊缝连续设置；
所述第二辅助支撑侧墙分别与所述底架的边梁和所述底架地板的边梁焊接固定，所述第二防火膨胀密封胶层分别覆于焊缝的上方，且沿焊缝连续设置。
在一些可选的实现方式中，还包括：
防火膨胀涂层，所述防火膨胀涂层设于所述底架的内底壁或者外底壁上；和/或，所述防火膨胀涂层设于所述底架地板的内底壁或者外底壁上。
在一些可选的实现方式中，还包括用于管线穿过以连通车体上方和车体下方的管线安装组件，所述管线安装组件包括：
管线安装套，所述管线安装套设有用于管线综合件穿过的第一通孔；
第一防火膨胀封堵层，所述第一防火膨胀封堵层设于所述第一通孔内，以在受热膨胀时，堵塞所述第一通孔和管线综合件间的缝隙。
在一些可选的实现方式中，所述管线安装组件还包括：
Z形管线安装座，所述Z形管线安装座设有用于Z形管线穿过的第二通孔，所述Z形管线安装座与所述底板组件固定，所述Z形管线安装座设于Z形管线的拐角处；
所述Z形管线安装座包括第一侧壁和第二侧壁，所述第一侧壁用以与Z形管线的水平侧壁贴合，所述第二侧壁与所述底板组件的上表面贴合；
第二防火膨胀封堵层，所述Z形管线安装座的第二侧壁与所述底板组件的上表面间、所述底板组件下表面和Z形管线间均分别设有所述第二防火膨胀封堵层。
在一些可选的实现方式中，所述地梁与所述底板组件焊接固定；
所述地梁为U形地梁，所述隔热层嵌入至所述U形地梁的U形腔体内，所述隔热层的上表面与所述U形地梁的内顶壁贴合，所述U形地梁的外顶壁与所述内装地板的下壁贴合进行支撑；
所述U形地梁的外顶壁与所述底架地板间的距离大于所述隔热层的上表面与所述底架地板间的距离。
在一些可选的实现方式中，所述底板组件为凹形底板组件，所述地梁为凹形地梁，所述凹形地梁对应设于所述凹形底板组件的上方，所述隔热层填充于所述凹形地梁和所述凹形底板组件间，所述地梁与所述底板组件焊接固定；
还包括：
调整垫，所述调整垫设于所述地梁的上表面和所述内装地板间，用以调平所述内装地板；所述调整垫为橡胶或PVC或木质调整垫。
在一些可选的实现方式中，所述隔热层为岩棉隔热层或玻璃棉隔热层。
采用本申请实施例中提供的一种地板装置，包括：底板组件，用于为车体提供支撑；隔热层，用于隔绝车体上方和车体下方的热量；内装地板，用于为车内人员及设备提供支撑，底板组件、隔热层、内装地板自下至上依次设置；地梁，与底板组件固定连接，地梁设于内装地板的下方进行支撑；固定于底板 组件宽度方向的两侧的辅助支撑组件，用于与车体侧墙固定连接，以为底板组件提供抗变形刚度。
相较于背景技术，应用本申请提供的地板装置，具有以下技术效果：
设置隔热层以将车体上方和车体下方热量隔断，并在底板组件的宽度方向的两侧设置辅助支撑组件，辅助支撑组件与车体侧墙固定连接，增加底板组件的刚度以对底板组件在高温下的弯曲变形进行抑制，有效提高地板装置在高温下承重性能；为乘客疏散或逃生争取时间。
本申请还提供了一种轨道车辆，包括车体侧墙和电缆，还包括上述实施例任一项的地板装置，地板装置的辅助支撑组件的侧壁与车体侧墙贴合，且焊接固定；地板装置的底板组件与车体侧墙焊接固定；电缆穿过底板组件，电缆内部设有电线，电线和电缆间设有防火膨胀封堵层。由于上述地板装置具有上述技术效果，具有该地板装置的轨道车辆也应具有相应的技术效果。
在一些可选的实现方式中，所述轨道车辆为双层轨道车辆，所述双层轨道车辆的中层地板和底层地板均为上述实施例任一项所述的地板装置。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1为本申请实施例提供的一种地板装置的结构示意图；
图2为图1中的Z形管线安装座的局部放大结构示意图；
图3为本申请另一实施例提供的一种地板装置的结构示意图；
图4为图3的局部放大结构示意图。
附图标记如下：
底架1、底架地板2、隔热层3、内装地板4、地梁5、地板布6、管路7、第一防火膨胀封堵层8、电线束9、管线安装套10、电缆11、Z形管线12、Z形管线安装座13、辅助支撑组件14、防火膨胀密封涂层15、第二防火膨胀封 堵层16、线槽17、调整垫18、防火膨胀密封胶层19。
具体实施方式
为了使本申请实施例中的技术方案及优点更加清楚明白，以下结合附图对本申请的示例性实施例进行进一步详细的说明，显然，所描述的实施例仅是本申请的一部分实施例，而不是所有实施例的穷举。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
请参阅图1-图4，图1为本申请实施例提供的一种地板装置的结构示意图；图2为图1中的Z形管线安装座13的局部放大结构示意图；图3为本申请另一实施例提供的一种地板装置的结构示意图；图4为图3的局部放大结构示意图。
针对上述问题，本申请实施例中提供了一种地板装置，包括底板组件、隔热层3、内装地板4、地梁5和辅助支撑组件14。其中，底板组件包括底架1和底架地板2。底架1对车辆进行支撑，为整个车辆刚度的承受体，一般为铝合金或钢制。底架地板2为整体焊接或一体式设置，以隔断车体内部和车体外部，对车体地板上的零部件进行支撑。
隔热层3一般设置在底板组件的上方，与其焊接固定，用以隔绝车体内部和车体外部的热量，隔热层3可设置为高隔热性能、高燃点的隔热材料玻璃棉，或者岩棉。内装地板4设置在隔热层3的上方，用于为车内人员及设备提供支撑；优选为上方粘接地板布6，内装地板4的下方通过粘接或紧固件与地梁5固定。地梁5与底板组件固定连接，如焊接，其用以支撑内装地板4，且具有一定的隔热作用。
在底板组件的宽度方向的两侧分别设置辅助支撑组件14，辅助支撑组件14与车体侧墙固定连接，如通过焊接或者螺纹紧固件进行固定。辅助支撑组件14优选为与底板组件焊接固定，形成一个整体，为底板组件提供抗变形刚度。优选地，辅助支撑组件14和底板组件垂直设置，辅助支撑组件14的高度优选为小于一米，以进一步为底板组件提供刚度，阻止底板组件在高温承重情况下 的弯曲变形。
可以理解的是，辅助支撑组件14可设置在底板组件的上方或者下方，基于底板组件安装在车体的位置的不同进行设置，如当地板装置作为双层轨道车辆的中间地板层时，辅助支撑组件14可设置在底板组件的任意方向；当地板装置作为双层轨道车辆的底部地板层时，辅助支撑组件14优选设置在底板组件的上方，以优化安装空间。
相较于背景技术，应用本申请提供的地板装置，具有以下技术效果：
设置隔热层以将车体上方和车体下方热量隔断，并在底板组件的宽度方向的两侧设置辅助支撑组件，辅助支撑组件与车体侧墙固定连接，增加底板组件的刚度以对底板组件在高温下的弯曲变形进行抑制，有效提高地板装置在高温下承重性能；为乘客疏散或逃生争取时间。
具体的，辅助支撑组件14包括第一辅助支撑侧墙和第二辅助支撑侧墙。其中，第一辅助支撑侧墙和第二辅助支撑侧墙分别固定于底板组件的上方，第一辅助支撑侧墙和第二辅助支撑侧墙分别与车体侧墙焊接固定；第一辅助支撑侧墙沿底板组件的长度方向连续设置，同样地，第二辅助支撑侧墙沿底板组件的长度方向连续设置，以提高底板组件的抗变形能力。第一辅助支撑侧墙和第二辅助支撑侧墙分别与车体侧墙焊接固定，当底板组件在受热发生形变时，通过第一辅助支撑侧墙和第二辅助支撑侧墙提供反力和刚度，以阻止底板组件发生弯曲变形。第一辅助支撑侧墙、底板组件和第二辅助支撑侧墙形成U形腔体，其结构稳定，抗弯曲变形效果好。在一种实施例中，可根据车体侧墙的截面形状设置第一辅助支撑侧墙、第二辅助支撑侧墙的形状，如二者可设置为弧形侧墙，由此以增加与车体侧墙的接触面积，进一步增大与底板组件变形拉力的所抗衡的最大反力。
为了防止火源或热量从辅助支撑组件14和底板组件的连接处进入至车体内部，在辅助支撑组件14与底板组件的连接处设有防火膨胀密封胶层19，防火碰撞密封胶层19在受热时膨胀，以堵塞连接处的缝隙，进一步隔绝火源及 热量，延长地板装置在火场中的抗火时间，提高耐火抗火性。
其中，还包括第一防火膨胀密封胶层和第二防火膨胀密封胶层，第一防火膨胀密封胶层设于第一辅助支撑侧墙与底板组件间的连接处；第二防火膨胀密封胶层设于第二辅助支撑侧墙与底板组件间的连接处。
在一种实施例中，底板组件包括底架和一体式设置的底架地板2；底架地板2焊接于底架1上方；第一辅助支撑侧墙分别与底架1的边梁和底架地板2的边梁焊接固定，第一防火膨胀密封胶层设于第一辅助支撑侧墙与底架1的边梁焊接的焊缝处，以及第一辅助支撑侧墙与底架地板2的边梁焊接的焊缝处，且均沿各个焊缝的长度方向连续设置；同样地，第二辅助支撑侧墙分别与底架1的边梁和底架地板2的边梁焊接固定，第二防火膨胀密封胶层分别覆于各个焊缝的上方，且沿焊缝连续设置。
进一步地，为了保证地板装置的耐火完整性，上述地板装置还包括防火膨胀涂层15，防火膨胀涂层15设于底架1的内底壁或者外底壁上；和/或，防火膨胀涂层15设于底架地板2的内底壁或者外底壁上，基于底架1和底架地板2材质的不同，进行防火膨胀涂层15的位置设置。防火膨胀涂层15在火场中受热膨胀，隔绝火场对底板组件的影响，进一步提高地板装置的耐火性。
具体的，当地板装置需要在其上穿过管线时，上述地板装置还包括管线安装组件，用于管线穿过以连通车体上方和车体下方，管线综合件一般包括管路7、线缆和电线束9等，管线从车体下方贯穿至车体上方，优选为不锈钢或碳钢材质，管内通风或通过电线电缆。管线安装组件包括管线安装套10和第一防火膨胀封堵层8，管线安装套10设有用于管线综合件穿过的第一通孔；管线安装套10与底板组件焊接固定，可以理解的是，底板组件上开设有便于管线穿过的安装孔。
管线安装套10设于安装孔内并在其周向进行焊接，一般焊接在底架地板2上，管线安装套10和第一通孔内的管线综合件间存在缝隙、孔洞等，为了进一步提高地板装置的防火性能，在第一通孔内设置第一防火膨胀封堵层8，以 其在受热膨胀时，堵塞第一通孔和管线安装套10间的缝隙，并具有耐火性能，以阻隔管线安装套10两端，防止火源或热量穿过第一通孔进入车体内部。一般的，正常状态0.8～1.2mm厚，受热后膨胀150倍。
其中，管线安装组件还包括Z形管线安装座13和第二防火膨胀封堵层16。其中，Z形管线12包括平行设置的两个第一管路和与第一管路垂直设置的第二管路，Z形管线安装座13设有用于Z形管线12穿过的第二通孔，Z形管线安装座13与底板组件固定，如焊接固定，Z形管线安装座13设于Z形管线12的拐角处；即第一管路和第二管路的连接处，Z形管线安装座13包括第一侧壁和第二侧壁，第一侧壁用以与Z形管线12的水平侧壁贴合，第二侧壁与底板组件的上表面贴合；由此设置，消除二者间允许热量或火源通过的间隙，形成一种防火密封结构，使得热量或火源即使穿过底板组件下表面和Z形管线间的第二防火膨胀密封层，也能够通过第一侧壁、第二侧壁、Z形管线12的水平侧壁和底板组件的上表面进行封堵。
第一侧壁和第二管路的周向侧壁贴合，以为Z形管线12的安装提供支撑。同样地，为了防止Z形管线12与底板组件之间留有空隙，在Z形管线安装座13的第二侧壁与底板组件间、底板组件和Z形管线12间均分别设有第二防火膨胀封堵层16；基于Z形管线安装座13的具体结构，在第一通孔和Z形管线12之间设置第二防火膨胀封堵层16较为不便，故在底板组件和Z形管线12间设置第二防火膨胀封堵层16；为了防止火源或热量从第二侧壁和底板组件的上表面间缝隙进入至车体内部，在第二侧壁与底板组件间设置第二防火膨胀封堵层16。
进一步地，地梁5与底板组件焊接固定，一般焊接在底架地板2上，且位于内装地板4的下方进行支撑；地梁5将地梁5为U形地梁5，隔热层3嵌入至U形地梁的U形腔体内，隔热层3的上表面与U形地梁的内顶壁贴合，U形地梁的外顶壁与内装地板4的下壁贴合进行支撑；U形地梁的外顶壁与底架地板2间的距离大于隔热层3的上表面与底架地板2间的距离，以将内装地板 4和底板组件隔开进行隔热。U形地梁5的U形腔体内填充有隔热层3，使得U形地梁5与底板组件间不会出现中空腔体，通过填充隔热层3进一步提高隔热效果。地梁5对内装地板4进行支撑，以保证隔热层3的厚度和状态不受影响，保证隔热层3始终处于隔热状态。
具体的作业过程为：车下起火或经过火场时，底架1和底架地板2首先受到火场热量的炙烤，防火膨胀涂层受热膨胀，隔绝火场对底板组件的直接接触，并隔绝或减缓火场温度传递至底板组件上；
同时，由于防火膨胀涂层的耐火隔热作用，少量温度或热能传递至隔热层3，隔热层3进行隔热，减少热量通过内装地板4、地板布6向车内传递；少量温度或热能传递至地梁5，地梁5对内装地板4进行支撑，保证内装地板4和地板布6的初始位置，保证隔热层3的厚度和状态不受影响；
管线综合件中管路7受到热量影响，管路7为不锈钢或碳钢材质，能够阻挡火/热通过管内到达车内；管路7与管线安装套10间的第一防火膨胀封堵层8在受热后，膨胀充满管线安装套10，隔绝火源或热量从管路7和管线安装套10间的空隙传到车内；管线综合件中电线束9受到热量影响，内部原有间隙或电线表皮燃烧后产生的空隙被第一防火膨胀封堵层8受热后进行封堵，隔绝热量或火源；
同样地，当管线综合件中电缆11受到热量影响时，电缆11表皮有金属钢丝网，内部有若干束/根电线，电线表皮为可燃非金属；电缆11内部各电线组合间还有空隙。电缆11受到火源或热量的作用时，内部本来存在的空隙或电线表皮燃烧后产生的空隙被第一防火膨胀封堵层8受热后进行封堵，隔断了热量/火源的传播或入侵；管线安装套10与管线综合件间在受到热量/火源的作用时，第一防火膨胀封堵层8膨胀充满此处间隙，隔断火/热该处的空隙传到车内。
上述地板装置当车下起火或经过火场时，地板装置能够较长时间地抵抗火场对地板组件中各零部件的侵袭，保护车内人员或设备不受火场影响，保障车体地板组件高温条件下不变形的性能，具有良好的耐火抗火能力，可应用于双 层轨道车辆的头车及拖车的中间层地板上。
如图3-4所示，在另一实施例中，当该地板装置应用于双层轨道车辆的底层地板上时，底板组件、隔热层3、地梁5和内装地板4自下至上依次设置；地梁5与底板组件焊接固定，如满焊焊接。底板组件为凹形底板组件，地梁5为凹形地梁，凹形地梁对应设于凹形底板组件的上方，即，凹形地梁的凹槽部与凹形底板组件的凹槽部对应设置，隔热层3填充于凹形地梁和凹形底板组件间，地梁5铺设于隔热层3的上方；地梁与5底板组件焊接固定；鉴于地梁5的铺设结构，为了能够对内装地板4进行调平，上述地板装置还包括：
调整垫18，调整垫18设于地梁5的上表面和内装地板4间，用以调平内装地板4；调整垫18为橡胶或PVC或木质调整垫。隔热层3可设置为高密度高隔热性的岩棉隔热层3。
优选地，在隔热层3内设置有线槽17，线槽17和地梁5焊接固定，用以安装电线或电缆11，可通过喷漆以间隔异种金属的接触，优选地，也可以在线槽17中填充防火膨胀封堵层，以进一步优化地板装置的防火性能。
在上述各实施例的基础上，隔热层3为岩棉隔热层3或玻璃棉隔热层3。
本申请提供一种轨道车辆，包括车体侧墙和电缆11，还包括上述实施例任一项的地板装置，地板装置的辅助支撑组件14的侧壁与车体侧墙贴合，且焊接固定；地板装置的底板组件与车体侧墙焊接固定；电缆11穿过底板组件，电缆11内部设有电线，电线和电缆11间设有防火膨胀封堵层。由此以对地板装置穿孔后的各间隙、孔洞、电缆11和电线之间的孔洞缝隙进行封堵，提高轨道车辆的防火耐火完整性。
优选地，轨道车辆为双层轨道车辆，双层轨道车辆的中层地板和底层地板均为上述实施例任一项的地板装置。由此以进一步优化双层轨道车辆的两层地板的防火耐火性能。
在本申请的描述中，需要理解的是，术语“前”、“后”、“首”、“尾”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“连接”等术语应做广义理解；以连接为例，可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
尽管已描述了本申请一些可选的实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括一些可选的实施例以及落入本申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (12)

  1. 一种地板装置，其特征在于，包括：
    底板组件，用于为车体提供支撑；
    隔热层，用于隔绝车体上方和车体下方的热量；
    内装地板，用于为车内人员及设备提供支撑，所述底板组件、所述隔热层、所述内装地板自下至上依次设置；
    地梁，与所述底板组件固定连接，所述地梁设于所述内装地板的下方进行支撑；
    固定于所述底板组件宽度方向的两侧的辅助支撑组件，用于与车体侧墙固定连接，以为所述底板组件提供抗变形刚度。
  2. 根据权利要求1所述的地板装置，其特征在于，所述辅助支撑组件与所述底板组件垂直设置，所述辅助支撑组件包括：
    第一辅助支撑侧墙和第二辅助支撑侧墙，所述第一辅助支撑侧墙和所述第二辅助支撑侧墙分别固定于所述底板组件的上方，所述第一辅助支撑侧墙和所述第二辅助支撑侧墙分别与车体侧墙焊接固定；
    所述第一辅助支撑侧墙、所述底板组件和所述第二辅助支撑侧墙形成U形腔体。
  3. 根据权利要求2所述的地板装置，其特征在于，还包括：
    第一防火膨胀密封胶层，所述第一防火膨胀密封胶层设于所述第一辅助支撑侧墙与所述底板组件间的连接处；
    第二防火膨胀密封胶层，所述第二防火膨胀密封胶层设于所述第二辅助支撑侧墙与所述底板组件间的连接处。
  4. 根据权利要求3所述的地板装置，其特征在于，所述底板组件包括：
    底架；
    一体式设置的底架地板，所述底架地板焊接于所述底架上方；
    所述第一辅助支撑侧墙分别与所述底架的边梁和所述底架地板的边梁焊 接固定，所述第一防火膨胀密封胶层分别覆于焊缝的上方，且沿焊缝连续设置；
    所述第二辅助支撑侧墙分别与所述底架的边梁和所述底架地板的边梁焊接固定，所述第二防火膨胀密封胶层分别覆于焊缝的上方，且沿焊缝连续设置。
  5. 根据权利要求3所述的地板装置，其特征在于，还包括：
    防火膨胀涂层，所述防火膨胀涂层设于所述底架的内底壁或者外底壁上；和/或，所述防火膨胀涂层设于所述底架地板的内底壁或者外底壁上。
  6. 根据权利要求1所述的地板装置，其特征在于，还包括用于管线穿过以连通车体上方和车体下方的管线安装组件，所述管线安装组件包括：
    管线安装套，所述管线安装套设有用于管线综合件穿过的第一通孔；
    第一防火膨胀封堵层，所述第一防火膨胀封堵层设于所述第一通孔内，以在受热膨胀时，堵塞所述第一通孔和管线综合件间的缝隙。
  7. 根据权利要求6所述的地板装置，其特征在于，所述管线安装组件还包括：
    Z形管线安装座，所述Z形管线安装座设有用于Z形管线穿过的第二通孔，所述Z形管线安装座与所述底板组件固定，所述Z形管线安装座设于Z形管线的拐角处；
    所述Z形管线安装座包括第一侧壁和第二侧壁，所述第一侧壁用以与Z形管线的水平侧壁贴合，所述第二侧壁与所述底板组件的上表面贴合；
    第二防火膨胀封堵层，所述Z形管线安装座的第二侧壁与所述底板组件的上表面间、所述底板组件下表面和Z形管线间均分别设有所述第二防火膨胀封堵层。
  8. 根据权利要求4所述的地板装置，其特征在于，所述地梁与所述底板组件焊接固定；
    所述地梁为U形地梁，所述隔热层嵌入至所述U形地梁的U形腔体内，所述隔热层的上表面与所述U形地梁的内顶壁贴合，所述U形地梁的外顶壁与所述内装地板的下壁贴合进行支撑；
    所述U形地梁的外顶壁与所述底架地板间的距离大于所述隔热层的上表面与所述底架地板间的距离。
  9. 根据权利要求4所述的地板装置，其特征在于，所述底板组件为凹形底板组件，所述地梁为凹形地梁，所述凹形地梁对应设于所述凹形底板组件的上方，所述隔热层填充于所述凹形地梁和所述凹形底板组件间，所述地梁与所述底板组件焊接固定；
    还包括：
    调整垫，所述调整垫设于所述地梁的上表面和所述内装地板间，用以调平所述内装地板；所述调整垫为橡胶或PVC或木质调整垫。
  10. 根据权利要求1-9任一项所述的地板装置，其特征在于，所述隔热层为岩棉隔热层或玻璃棉隔热层。
  11. 一种轨道车辆，其特征在于，包括车体侧墙和电缆，还包括权利要求1-10任一项所述的地板装置，所述地板装置的辅助支撑组件的侧壁与所述车体侧墙贴合且焊接固定；所述地板装置的底板组件与所述车体侧墙焊接固定；
    电缆穿过所述底板组件，所述电缆内部设有电线，所述电线和所述电缆间设有防火膨胀封堵层。
  12. 根据权利要求11所述的轨道车辆，其特征在于，所述轨道车辆为双层轨道车辆，所述双层轨道车辆的中层地板和底层地板均为所述地板装置。
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