Fireproof floor, cab and locomotive

Abstract

The application discloses a fireproof floor, a cab and a locomotive. The fireproof floor comprises a floor frame, a fireproof layer, a filling layer, a bearing plate, a sound insulation layer and a surface layer. The floor frame has a first surface and a second surface, and the first surface and the second surface are oppositely arranged along the thickness direction of the floor frame. The fireproof layer is arranged on the first surface. The filling layer is filled in the floor frame and is used for heat insulation and sound absorption. The bearing plate is arranged on the second surface, and the filling layer is located between the fireproof layer and the bearing plate. The sound insulation layer is arranged on the side surface of the bearing plate away from the floor frame. The surface layer is arranged on the side surface of the sound insulation layer away from the bearing plate.

Description

Technical Field

[0001] This application relates to the field of locomotive technology, and more specifically, to a fireproof floor, a driver's cab, and a locomotive. Background Technology

[0002] The driver's cab is the workplace for drivers and passengers. To ensure the normal operation of rail transit equipment, the driver's cab should provide a certain level of comfort and safety. Existing rail transit equipment driver's cabs all have a floor, located beneath the cab, providing load-bearing and passage functions for drivers and passengers. The design of the driver's cab floor must not only consider load-bearing and passage functions but also fire resistance. In the event of a fire in the equipment beneath the floor or the spread of flames, heat, and toxic fumes from other parts to the area below the floor, the floor should provide fire protection for the drivers and passengers in the cab. However, the fire resistance of the floors in related technologies is relatively weak and cannot meet the requirements for integrity and thermal insulation. Summary of the Invention

[0003] This application provides a fireproof floor, a driver's cab, and a locomotive to solve the problem of low fire resistance of driver's cab floors in related technologies.

[0004] The fireproof flooring of this application embodiment includes:

[0005] A floor frame having a first surface and a second surface, the first surface and the second surface being disposed opposite to each other along the thickness direction of the floor frame;

[0006] A fireproof layer is laid on the first surface;

[0007] A filling layer, which is filled within the floor frame, serves to provide thermal insulation and sound absorption.

[0008] A load-bearing plate is laid on the second surface, and the filling layer is located between the fireproof layer and the load-bearing plate;

[0009] A sound insulation layer is laid on the surface of the load-bearing slab facing away from the floor frame; and

[0010] The surface layer is laid on the side of the sound insulation layer facing away from the load-bearing plate.

[0011] According to some embodiments of this application, the fireproof layer is sprayed onto the first surface by a spraying process.

[0012] According to some embodiments of this application, the fireproof layer is an intumescent fireproof foam.

[0013] According to some embodiments of this application, the filling layer comprises at least one of the following materials:

[0014] Foam plastics, foam glass, foam ceramics.

[0015] According to some embodiments of this application, the surface layer includes flooring.

[0016] According to some embodiments of this application, the floor frame includes:

[0017] First annular frame;

[0018] The second annular frame has the same dimensions as the first annular frame and is spaced apart from the first annular frame along the thickness direction of the fireproof floor; the surface of the first annular frame facing away from the second annular frame is the first surface, and the surface of the second annular frame facing away from the first annular frame is the second surface; and

[0019] Multiple connecting beams, each of which is connected at both ends of the length direction to the first annular frame and the second annular frame respectively, and the multiple connecting beams are arranged circumferentially along the first annular frame;

[0020] The filling layer fills the space enclosed by the first annular frame, the second annular frame, and the plurality of connecting beams. The load-bearing plate has the same size as the second annular frame and is connected to the second annular frame.

[0021] The driver's cab in this application embodiment includes the fireproof floor described in any of the above claims.

[0022] According to some embodiments of this application, the driver's cab further includes a frame body, and the fireproof floor is connected to the lower part of the frame body;

[0023] The driver's cab also includes a fire-expanding rubber strip, which surrounds the outer periphery of the fireproof floor and is located between the outer periphery of the fireproof floor and the inner wall of the frame body.

[0024] According to some embodiments of this application, the driver's cab further includes fire-resistant sealant located between the outer peripheral surface of the fire-resistant floor and the inner wall surface of the frame body, and located on the side of the fire-expanding adhesive strip facing the top plate of the frame body.

[0025] The locomotive in this application embodiment includes the driver's cab described above.

[0026] An embodiment of the above application has at least the following advantages or beneficial effects:

[0027] The fireproof floor of this application embodiment effectively prevents the spread of flames, heat, and smoke to the driver's cab when a fire occurs in the equipment under the floor or when flames, heat, and smoke from other parts of the floor spread to the lower part of the floor. This improves the integrity and heat insulation to a certain extent, ensuring that the driver and passengers can safely and promptly escape to a safe area outside the vehicle. Attached Figure Description

[0028] Figure 1 The diagram shown is a perspective view of the driver's cab according to an embodiment of this application.

[0029] Figure 2 The diagram shown is a top view of the driver's cab according to an embodiment of this application.

[0030] Figure 3 What is shown is Figure 2 A cross-sectional view along section line AA.

[0031] Figure 4 The diagram shown is a perspective view of a fireproof floor according to an embodiment of this application.

[0032] Figure 5 The diagram shown is a schematic representation of the floor frame according to an embodiment of this application.

[0033] The reference numerals in the attached figures are explained as follows:

[0034] 10. Main Framework

[0035] 11. Top Slab

[0036] 12. Cylindrical side plate

[0037] 20. Fireproof flooring

[0038] 100. Floor Frame

[0039] 110. First Circular Frame

[0040] 111. First Surface

[0041] 120. Second circular frame

[0042] 121. Second Surface

[0043] 130. Connecting beam

[0044] 200. Fireproof layer

[0045] 300, Filler layer

[0046] 400. Load-bearing plate

[0047] 500, sound insulation layer

[0048] 600, Surface Layer

[0049] 700. Fire-expanding rubber strip

[0050] 800, Fireproof Sealant Detailed Implementation

[0051] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0052] It is understood that the terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0053] like Figure 1 and Figure 2 As shown, the driver's cab in this embodiment includes a frame body 10 and a fireproof floor 20, with the fireproof floor 20 disposed at the bottom of the frame body 10. The frame body 10 and the fireproof floor 20 together form a chamber for accommodating the driver and passengers.

[0054] The frame body 10 may include a top plate 11 and cylindrical side plates 12, with the cylindrical side plates 12 connected to the outer periphery of the top plate 11. The top plate 11 and the fireproof floor 20 are spaced apart along the height direction of the driver's cab. The ring formed by the cylindrical side plates 12 may be rectangular, but is not limited thereto.

[0055] like Figure 3 and Figure 4 As shown, the fireproof floor 20 of this embodiment includes a floor frame 100, a fireproof layer 200, a filling layer 300, a load-bearing plate 400, a sound insulation layer 500, and a surface layer 600. The floor frame 100 has a first surface 111 and a second surface 121, which are arranged opposite to each other along the thickness direction of the floor frame 100; the fireproof layer 200 is laid on the first surface 111; the filling layer 300 is filled inside the floor frame 100 to provide heat insulation and sound absorption; the load-bearing plate 400 is laid on the second surface 121, and the filling layer 300 is located between the fireproof layer 200 and the load-bearing plate 400; the sound insulation layer 500 is laid on the side of the load-bearing plate 400 facing away from the floor frame 100; and the surface layer 600 is laid on the side of the sound insulation layer 500 facing away from the load-bearing plate 400.

[0056] The fireproof floor 20 of this application embodiment effectively prevents the spread of flames, heat and smoke to the driver's cab when a fire occurs in the equipment under the floor or when flames, heat and smoke from other parts of the floor spread to the lower end of the floor. This improves the integrity and heat insulation to a certain extent, ensuring that the driver and passengers can safely and promptly escape to a safe area outside the vehicle.

[0057] In this context, integrity refers to the ability of a material or structure to retain its original shape and structure when exposed to fire. This means that the material does not rapidly collapse or lose its structural integrity in a fire, thus providing longer-lasting fire protection.

[0058] Thermal insulation refers to the ability of a material or structure to block heat. This means that the material can slow down the rate of heat transfer, thereby reducing the possibility of fire spreading and protecting objects or structures behind it from high temperatures. Thermal insulation materials are widely used in fire protection facilities and equipment such as firewalls, smoke barriers, and thermal clothing.

[0059] In one embodiment, the fire-resistant layer 200 is sprayed onto the first surface 111 using a spraying process. Further, the fire-resistant layer 200 is an intumescent fire-resistant foam.

[0060] It should be noted that intumescent fire-retardant foam is typically made of polymer materials (such as polyethylene) containing one or more chemical additives that react chemically at high temperatures to expand and foam. When this material is exposed to the heat of a flame, it begins to expand and release gas, forming a dense fire-resistant and heat-insulating layer that prevents the fire from spreading to other parts. This foam can also provide a certain degree of thermal insulation during a fire, reducing the impact of the fire on the underlying structure.

[0061] It can be seen that the fireproof layer 200, as the first barrier of the fireproof floor 20, is in direct contact with harsh environments such as flames. After expanding and foaming when exposed to fire, it forms a dense fireproof and heat-insulating layer, which plays a very good fireproof role.

[0062] Of course, in other embodiments, the fireproof layer 200 can also be applied to the first surface 111 by an adhesive process.

[0063] Please continue reading. Figure 3 and Figure 4 As shown, the filler layer 300 is made of next-generation fire safety materials and can provide functions such as heat insulation and sound absorption.

[0064] In one embodiment, the filler layer 300 is made of a microporous thermal insulation material. Such materials have a microporous structure, which effectively isolates heat transfer and provides good sound absorption. Microporous thermal insulation materials are typically manufactured using specialized processes, such as foam injection molding or foam extrusion, to achieve precise control over the microporous structure.

[0065] Furthermore, microporous thermal insulation materials include at least one of the following materials: foamed plastic, foamed glass, and foamed ceramic.

[0066] Please continue reading. Figure 3 and Figure 4 The load-bearing plate 400 can be laid on the second surface 121 of the floor frame 100 by welding, riveting or bonding, and has the functions of bearing load and isolating flame.

[0067] The sound insulation layer 500 can be laid on the side of the load-bearing plate 400 facing away from the floor frame 100 by adhesive bonding, but is not limited to this.

[0068] In addition to its sound insulation function, the soundproofing panel also has flame-retardant properties. Furthermore, it can also act as a buffer.

[0069] In one embodiment, the sound insulation layer 500 may include at least one of the following materials: glass fiber, rock wool, or silicate board.

[0070] like Figure 3 and Figure 4 As shown, the surface layer 600 is laid on the side of the sound insulation layer 500 facing away from the load-bearing plate 400, and its fire resistance meets the corresponding flame retardant rating. The surface layer 600 is the last line of defense for the fireproof floor 20, and together with other layers, it forms a complete and reliable fireproof structure, creating a safer space for the driver's cab.

[0071] In one embodiment, the surface layer 600 includes linoleum. Further, the surface layer 600 is made of a rubber material or a non-metallic material such as PVC, and has functions such as heat insulation, anti-slip, and cushioning.

[0072] like Figure 4 As shown, the driver's cab also includes a fire-expanding rubber strip 700 and a fire-retardant sealant 800. The fire-expanding rubber strip 700 surrounds the outer periphery of the fireproof floor 20 and is located between the outer peripheral surface of the fireproof floor 20 and the inner wall surface of the frame body 10. The fire-retardant sealant 800 is located between the outer peripheral surface of the fireproof floor 20 and the inner wall surface of the frame body 10, and is located on the side of the fire-expanding rubber strip 700 facing the top plate 11 of the frame body 10.

[0073] Among them, the fire-expanding rubber strip 700 is a sealing material with fire-resistant expansion properties. When exposed to high-temperature flames, this strip expands to form a sealed isolation layer, preventing flames, smoke and harmful gases from passing through, thereby prolonging the burning time of a fire.

[0074] Fire-expanding adhesive strips (700) are typically composed of a polymer base and a special compound containing an expanding agent. Under normal conditions, these strips remain soft and elastic, serving as seals and barriers to fill gaps and openings. However, when exposed to flame, the expanding agent is activated, causing the strip to rapidly expand and form a dense insulating layer, preventing the spread of flames and smoke.

[0075] It is understandable that the fire-resistant floor 20 and the inner wall of the frame body 10 are filled with fire-expanding rubber strips 700 and fire-resistant sealant 800. In the event of a fire, the fire-expanding rubber strips 700 expand and fill the gap between the fire-resistant floor 20 and the inner wall of the frame body 10, ensuring that the gap between the two is completely sealed and preventing the spread of flames and toxic smoke into the driver's cab.

[0076] like Figure 5 As shown, in one embodiment, the floor frame 100 includes a first annular frame 110, a second annular frame 120, and a plurality of connecting beams 130. The second annular frame 120 has the same dimensions as the first annular frame 110 and is spaced apart from the first annular frame 110 along the thickness direction of the fireproof floor 20. The surface of the first annular frame 110 facing away from the second annular frame 120 is the first surface 111, and the surface of the second annular frame 120 facing away from the first annular frame 110 is the second surface 121. The two ends of each connecting beam 130 in the length direction are respectively connected to the first annular frame 110 and the second annular frame 120, and the multiple connecting beams 130 are arranged circumferentially along the first annular frame 110. The filling layer 300 fills the space enclosed by the first annular frame 110, the second annular frame 120, and the multiple connecting beams 130. The load-bearing plate 400 has the same dimensions as the second annular frame 120 and is connected to the second annular frame 120, so that the load-bearing plate 400 and the floor frame 100 form a closed cavity with the function of isolating flames.

[0077] In one embodiment, both the first annular frame 110 and the second annular frame 120 are rectangular, but this is not a limitation.

[0078] In another aspect, this application also provides a locomotive including the driver's cab of any of the above embodiments. Since the locomotive of this application includes the driver's cab of any of the above embodiments, it possesses all the advantages and beneficial effects of any of the above embodiments, which will not be elaborated further here.

[0079] In summary, the fireproof floor 20, driver's cab, and locomotive of this application embodiment have at least the following advantages and beneficial effects:

[0080] The fireproof floor 20 of this application embodiment effectively prevents the spread of flames, heat and smoke to the driver's cab when a fire occurs in the equipment under the floor or when flames, heat and smoke from other parts of the floor spread to the lower end of the floor. This improves the integrity and heat insulation to a certain extent, ensuring that the driver and passengers can safely and promptly escape to a safe area outside the vehicle.

[0081] It is understood that the various embodiments / implementations provided in this application can be combined with each other without creating contradictions, and will not be described one by one here.

[0082] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0083] In the description of the embodiments of the application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the application.

[0084] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the claims. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0085] The above are merely preferred embodiments of the application examples and are not intended to limit the application examples. For those skilled in the art, the application examples can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the application examples should be included within the protection scope of the application examples.

Claims

1. A driver's cab, characterized in that, include: Fire-resistant flooring, including: A floor frame has a first surface and a second surface, which are arranged opposite to each other along the thickness direction of the floor frame. The floor frame includes a first annular frame, a second annular frame, and a plurality of connecting beams. The second annular frame has the same size as the first annular frame and is spaced apart from the first annular frame along the thickness direction of the fireproof floor. The side of the first annular frame facing away from the second annular frame is the first surface, and the side of the second annular frame facing away from the first annular frame is the second surface. Each connecting beam has its two ends connected to the first annular frame and the second annular frame respectively along its length, and the plurality of connecting beams are arranged circumferentially along the first annular frame. A fireproof layer is laid on the first surface; The filling layer is filled in the space enclosed by the first annular frame, the second annular frame and the plurality of connecting beams of the floor frame, and is made of microporous thermal insulation material to serve as thermal insulation and sound absorption. A load-bearing plate is laid on the second surface, and the filling layer is located between the fireproof layer and the load-bearing plate; the load-bearing plate has the same size as the second annular frame and is connected to the second annular frame; A sound insulation layer is laid on the surface of the load-bearing slab facing away from the floor frame; and A surface layer is laid on the side of the sound insulation layer facing away from the load-bearing plate; The frame body, with the fireproof floor connected to the lower part of the frame body; Fire-expanding rubber strips are wrapped around the outer perimeter of the fireproof floor and located between the outer peripheral surface of the fireproof floor and the inner wall surface of the frame body; and The fire-resistant sealant is located between the outer peripheral surface of the fire-resistant floor and the inner wall surface of the frame body, and is located on the side of the fire-expanding adhesive strip facing the top plate of the frame body.

2. The driver's cab according to claim 1, characterized in that, The fireproof layer is applied to the first surface by a spraying process.

3. The driver's cab according to claim 2, characterized in that, The fireproof layer is an intumescent fireproof foam.

4. The driver's cab according to claim 1, characterized in that, The filling layer comprises at least one of the following materials: Foam plastics, foam glass, foam ceramics.

5. The driver's cab according to claim 1, characterized in that, The surface layer includes floor covering.

6. A locomotive, characterized in that, Includes the driver's cab as described in any one of claims 1 to 5.

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