Composite material floor and railway vehicle

Abstract

The invention discloses a composite material floor and a railway vehicle, and relates to the technical field of railway vehicles. The composite floor comprises an upper skin, a lower skin and reinforcing ribs arranged between the upper skin and the lower skin, one ends of the reinforcing ribs are connected with the upper skin, and the other ends of the reinforcing ribs are connected with the lower skin. A weight reduction material is filled between the upper skin and the lower skin; and at least one of the upper skin, the lower skin and the reinforcing ribs is made of a carbon fiber material. Compared with a metal material in the prior art, the composite material floor has the advantages that the weight can be effectively reduced, the weight of the whole floor structure is reduced by more than 35% compared with a stainless steel structure, and the train operation energy consumption is effectively reduced. In addition, the composite material floor is made of the carbon fiber material, the welding amount can be effectively reduced, deformation in the welding process can be avoided, the workpiece precision is further improved, the later procedure adjusting and repairing operation is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and more specifically, to a composite material floor. In addition, the present invention also relates to a rail vehicle comprising the composite material floor. Background Art

[0002] At present, with the continuous improvement of the speed level of rail transit trains, in order to better reduce energy consumption, the demand for the application of new lightweight materials in rail transit equipment is becoming more and more urgent.

[0003] In the prior art, the floor of a rail vehicle is generally made of metal, and the metal floor of the vehicle body is welded, which has many parts, a large amount of welding, large welding deformation, and low work efficiency; at the same time, the metal floor is heavy, which affects the energy consumption of the entire vehicle.

[0004] In summary, how to provide a floor that can effectively reduce vehicle energy consumption is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a composite material floor, which can effectively reduce the weight of the floor. The overall floor structure is more than 35% lighter than the stainless steel structure, effectively reducing the energy consumption of train operation.

[0006] Another object of the present invention is to provide a rail vehicle comprising the composite material floor.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A composite material floor, comprising an upper skin, a lower skin and a reinforcing rib arranged between the upper skin and the lower skin, wherein one end of the reinforcing rib is connected to the upper skin and the other end is connected to the lower skin;

[0009] The space between the upper skin and the lower skin is filled with weight-reducing material; at least one of the upper skin, the lower skin and the reinforcing ribs is made of carbon fiber material.

[0010] Optionally, it also includes a first floor body, the outer surface of the upper skin is provided with a mounting recess, the cross-section of the mounting recess is an inverted trapezoidal structure, the mounting recess is used to set a first mounting seat, the first mounting seat is used to fix the adjacent first floor body, and the first floor body is set at a protruding position between adjacent mounting recesses.

[0011] Optionally, the first mounting seat is a U-shaped structure, and a first rubber buffer pad is provided between the first mounting seat and the first floor body;

[0012] And / or, the first mounting seat and the upper skin are an integrated structure.

[0013] Optionally, a second floor body is further included, and the outer surface of the upper skin is provided with a mounting protrusion, the mounting protrusion is used to set a second mounting seat, the second mounting seat is used to fix the adjacent second floor body, and the second floor body is set at a recessed position between adjacent mounting protrusions.

[0014] Optionally, a threading space for passing a wire harness and a fixing frame for fixing the wire harness are provided between the second floor body and the upper skin.

[0015] Optionally, the second mounting seats are all U-shaped structures, and a second rubber buffer pad is provided between the second mounting seats and the second floor body;

[0016] And / or, the second mounting seat and the upper skin are an integrated structure.

[0017] Optionally, the weight-reducing material is weight-reducing foam, weight-reducing honeycomb, or weight-reducing plastic.

[0018] Optionally, the reinforcing ribs are obliquely arranged in the space between the upper skin and the lower skin, and the cross-section of the space between adjacent reinforcing ribs is a trapezoidal structure or an inverted trapezoidal structure.

[0019] Optionally, the bottom surface of the lower skin and the upper surface of the upper skin are both provided with a fire retardant coating;

[0020] A sound insulation filler is arranged in the space enclosed by the upper skin and the lower skin, the reinforcing ribs divide the space enclosed by the upper skin and the lower skin into a plurality of independent filling spaces, one of the adjacent filling spaces is filled with the weight-reducing material, and the other of the adjacent filling spaces is filled with the sound insulation filler;

[0021] The inner surface of the upper skin, the outer surface of the upper skin, the inner surface of the lower skin, and the outer surface of the lower skin are all provided with an insulating coating;

[0022] The inner surface of the upper skin, the outer surface of the upper skin, the inner surface of the lower skin, and the outer surface of the lower skin are all provided with an insulating coating;

[0023] A first temperature detection member is disposed on the upper surface of the upper skin, and a second temperature detection member is disposed on the lower surface of the lower skin;

[0024] The upper surface of the upper skin is provided with a distance detection member for detecting the distance between the upper floor body and the upper skin.

[0025] A rail vehicle comprises any one of the composite material floors described above.

[0026] The present invention provides a composite material floor, comprising an upper skin, a lower skin and reinforcing ribs arranged between the upper skin and the lower skin, one end of the reinforcing ribs being connected to the upper skin and the other end being connected to the lower skin; weight-reducing material is filled between the upper skin and the lower skin; at least one of the upper skin, the lower skin and the reinforcing ribs is made of carbon fiber material.

[0027] In actual use, the upper surface of the upper skin in the present invention can be used to install a wooden floor. Compared with the metal base plate in the prior art, the composite floor provided by the present invention has the following advantages:

[0028] Beneficial effects:

[0029] 1. At least one of the upper skin, lower skin and reinforcing ribs in the composite material floor of the present invention is made of carbon fiber material, which can effectively reduce weight compared with the metal material in the prior art. The overall floor structure is more than 35% lighter than the stainless steel structure, effectively reducing the energy consumption of train operation.

[0030] 2. During the actual assembly process, the metal base plate needs to be connected by welding. The composite material floor in the present invention is made of carbon fiber material, which can effectively reduce the amount of welding and avoid deformation during welding, thereby improving the precision of the parts, reducing the post-process adjustment and repair work, and improving work efficiency;

[0031] 3. In the present invention, reinforcing ribs are provided between the upper skin and the lower skin, which can effectively ensure the structural strength of the composite material floor;

[0032] 4. In the present invention, the space between the upper skin and the lower skin is filled with weight-reducing material, which can further reduce weight and improve the sound insulation effect.

[0033] In addition, the present invention also provides a rail vehicle comprising the composite material floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0035] Figure 1 This is a schematic structural diagram of a specific embodiment of the composite material floor provided by the present invention;

[0036] Figure 2This is a schematic structural diagram of the upper skin and the lower skin components of the composite material floor provided by the present invention;

[0037] Figure 3 for Figure 2 A partial enlarged view of the middle part of the structure.

[0038] Figure 1-Figure 3 middle:

[0039] 1 is the upper skin, 2 is the lower skin, 3 is the reinforcing rib, 4 is the weight-reducing material, 5 is the mounting recess, 6 is the mounting protrusion, 7 is the first mounting seat, and 8 is the first floor body. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The core of the present invention is to provide a composite material floor, which can effectively reduce the weight of the floor. The overall floor structure is more than 35% lighter than the stainless steel structure, effectively reducing the energy consumption of train operation.

[0042] Another core of the present invention is to provide a rail vehicle comprising the composite material floor.

[0043] Please refer to Figures 1 to 3 .

[0044] This specific embodiment discloses a composite material floor, including an upper skin 1, a lower skin 2 and a reinforcing rib 3 arranged between the upper skin 1 and the lower skin 2, one end of the reinforcing rib 3 is connected to the upper skin 1, and the other end is connected to the lower skin 2; the space between the upper skin 1 and the lower skin 2 is filled with a weight-reducing material 4; at least one of the upper skin 1, the lower skin 2 and the reinforcing rib 3 is made of carbon fiber material.

[0045] It should be noted that the upper surface of the upper skin 1 in this specific embodiment can be used to install a wooden floor, and the structure composed of the upper skin 1, the lower skin 2 and the reinforcing ribs 3 is located at the lower part of the wooden floor.

[0046] Composite material floors are generally formed as a whole using an autoclave process compared to metal structures. This reduces the amount of complex welding, effectively avoids welding deformation of parts, and has high part precision, effectively reducing post-process adjustment and repair work, thereby improving work efficiency.

[0047] On the other hand, the upper surface of the upper skin 1 can be set to be a plane, or can be set to be a surface with concave or convex parts, which is determined according to the actual situation and will not be elaborated here.

[0048] In actual use, the upper surface of the upper skin 1 in this specific embodiment can be used to install a wooden floor. Compared with the metal base plate in the prior art, the composite material floor provided by this specific embodiment has the following beneficial effects:

[0049] 1. In the composite material floor of the present invention, at least one of the upper skin 1, the lower skin 2, and the reinforcing ribs 3 is made of carbon fiber material, which can effectively reduce weight compared with the metal material in the prior art. The overall floor structure is more than 35% lighter than the stainless steel structure, effectively reducing the energy consumption of train operation.

[0050] 2. During the actual assembly process, the metal base plate needs to be connected by welding. The composite material floor in the present invention is made of carbon fiber material, which can effectively reduce the amount of welding and avoid deformation during welding, thereby improving the precision of the parts, reducing the post-process adjustment and repair work, and improving work efficiency;

[0051] 3. In the present invention, reinforcing ribs 3 are provided between the upper skin 1 and the lower skin 2, which can effectively ensure the structural strength of the composite material floor;

[0052] 4. In the present invention, the space between the upper skin 1 and the lower skin 2 is filled with weight-reducing material 4, which can further reduce weight and improve the sound insulation effect.

[0053] On the basis of the above embodiment, the composite material floor can also include a first floor body 8, and the outer surface of the upper skin 1 is provided with a mounting recess 5, the cross-section of the mounting recess 5 is an inverted trapezoidal structure, the mounting recess 5 is used to set the first mounting seat 7, the first mounting seat 7 is used to fix the adjacent first floor body 8, and the first floor body 8 is set at a protruding position between adjacent mounting recesses 5.

[0054] like Figure 1 As shown, a mounting recess 5 is provided on the surface of the upper skin 1. During actual installation, the first mounting seat 7 is arranged in the mounting recess 5. This can avoid the first mounting seat 7 from occupying additional height space of the composite material floor, which is beneficial to lowering the height of the composite material floor and reducing the space occupied by the composite material floor.

[0055] It should be noted that the first floor body 8 mentioned in this specific embodiment can be a wooden floor, and the common ones are oak, teak, walnut, birch, etc. Different wood species differ in color, texture, hardness and price. The solid wood floor is formed by drying and processing natural wood, showing natural texture and color, and has a unique aesthetic feeling. It is comfortable to the foot, warm in winter and cool in summer, and can adjust the temperature and humidity in the car. In addition, it is more environmentally friendly because it is a natural material and does not contain harmful substances such as formaldehyde. Or the first floor body 8 can also be set as a laminate floor, with fiberboard, particleboard, etc. as the base material, and the surface is covered with a wear-resistant layer, a decorative layer and a balancing layer; it is easy to install, does not need to be keeled, and can be directly laid on the ground. Or the first floor body 8 can also be set as a solid wood composite floor, which is made of boards of different tree species staggered and laminated, overcomes the disadvantages of unidirectional isotropy of solid wood floor, has a small shrinkage and swelling rate, and has good stability. It retains the natural texture and comfortable foot feeling of solid wood floor, and the price is relatively close to the people. Of course, the first floor body 8 can also be set as a floor of other materials, which is determined according to actual conditions and will not be elaborated here.

[0056] Specifically, the first mounting seat 7 can be configured as a U-shaped structure, and a first rubber buffer pad is provided between the first mounting seat 7 and the first floor body 8 to achieve shock absorption and buffering of the first floor body 8 .

[0057] During actual installation, the first mounting seat 7 can be fixed to the upper skin 1 by screws, and the connection between the first mounting seat 7 and the first floor body 8 can be achieved through a snap-on structure. Specifically, a snap-on groove can be set on the side of the first floor body 8 facing the upper skin 1, and a snap-on protrusion can be set on the first mounting seat 7. During the assembly process, the snap-on protrusion slides into the slot from one end of the slot to achieve snap-on cooperation between the first floor body 8 and the first mounting seat 7.

[0058] It should be noted that the first mounting seat 7 can be made of metal material, or other materials that meet the requirements, which is determined according to actual conditions and will not be elaborated here.

[0059] Preferably, the surface in the convex portion between adjacent mounting recesses 5 for contacting the first floor body 8 can be set to a plane, or the surface in the convex portion between adjacent mounting recesses 5 for contacting the first floor body 8 can be set to a shape that matches the surface of the first floor body 8 facing the upper skin 1. The specific shape is determined based on actual conditions and will not be elaborated here.

[0060] On the basis of the above embodiments, in order to improve the structural strength of the composite material floor, the first mounting seat 7 and the upper skin 1 can be set as an integrated structure. During the actual processing, the first mounting seat 7 and the upper skin 1 can be integrally formed by injection molding.

[0061] It should be noted that, according to actual installation requirements, mutually matching positioning grooves and positioning protrusions can be provided in adjacent first floor bodies 8 to facilitate positioning of adjacent first floor bodies 8 during installation.

[0062] Specifically, a positioning protrusion can be provided on one side of the first floor body 8, and the positioning protrusion is located on the surface of the first floor body 8 facing the upper skin 1. A positioning recess is provided on the other side of the first floor body 8, and the positioning recess is located on the surface of the first floor body 8 facing away from the upper skin 1. During the assembly of the first floor, the positioning recess of one of the first floor bodies 8 in the adjacent first floor bodies 8 is just adjacent to the positioning protrusion of the other first floor body 8. When installing the first floor bodies 8, the positioning recesses of the adjacent first floor bodies 8 cooperate with the positioning protrusions to enable the adjacent first floor bodies 8 to be positioned and installed, and at the same time, the adjacent first floor bodies 8 can be snap-connected, which is beneficial to improving the overall structural strength of the floor.

[0063] Of course, the first floor body 8 can also be installed in other ways that meet the requirements, which is determined according to actual conditions and will not be elaborated here.

[0064] On the basis of the above embodiment, the composite material floor can also include a second floor body, and the outer surface of the upper skin 1 is provided with a mounting protrusion 6, the mounting protrusion 6 is used to set a second mounting seat, and the second mounting seat is used to fix the adjacent second floor body, and the second floor body is set at a recessed position between adjacent mounting protrusions 6.

[0065] It should be noted that in this specific embodiment, the second mounting seat is installed on the mounting protrusion 6 of the upper skin 1, and the second floor body is laid on the upper side of the second mounting seat, and a cavity structure is formed between the second floor body and the adjacent mounting protrusion 6 of the upper skin 1; the cavity structure can be used to install other components, or wires or air pipelines can be laid in the cavity structure formed between the second floor body and the adjacent mounting protrusion 6 of the upper skin 1 to avoid occupying additional space, and at the same time, the components, wires or air pipelines can also be protected to avoid being exposed to the outside and damaged.

[0066] Specifically, a threading space for the wire harness to pass through and a fixing frame for fixing the wire harness may be provided between the second floor body and the upper skin 1 .

[0067] like Figure 2As shown, a mounting recess 5 is formed between adjacent mounting protrusions 6. During installation, the second mounting seat is fixed to the mounting protrusion 6, and the second floor body is located on the upper side of the second mounting seat. The second floor body and the mounting recess 5 of the upper skin 1 are enclosed to form a threading space for the wiring harness to pass through. In order to further protect the wiring harness, a pipeline for the wiring harness to pass through can also be arranged in the threading space, and the wiring harness is located in the pipeline to avoid damage to the wiring harness. On the other hand, the pipeline can be set to an insulating material, which can protect the wiring harness and have an insulating effect at the same time.

[0068] It should be noted that the fixing frame mentioned in this specific embodiment can be set as a cable tie fixing structure, specifically, it can be set as a cable tie and plate edge buckle assembly or a strap and plate hole buckle assembly or a cable tie and cylindrical buckle assembly, wherein the cable tie and plate edge buckle assembly is suitable for situations where there is no fixing hole or the temperature will affect the viscosity of the rubber block, and can be quickly pushed into the edge of a plate with a thickness of 1.0-3.0 mm, and is often used on the edge of a sheet metal edge or the edge of a reinforcing rib 3 inside a plastic part. The cable tie and plate hole buckle assembly requires a suitable single hole to be reserved on the plate, and its characteristics are quick assembly and high reliability. The cable tie and cylindrical buckle assembly is suitable for assembly on a cylindrical rod or round tube structure, and also has the characteristics of quick assembly and high reliability. Alternatively, the fixing frame is set as a wire clamp fixing structure, and the fixing method of the wire clamp fixing structure can be pasted by double-sided tape, and the wire clamp is pasted on the position where the wire harness needs to be fixed by double-sided tape. Or it can be fixed by a buckle, the wire clamp has a buckle, and the wire harness can be clamped in the buckle; or it can be fixed by a screw, and the wire clamp is fixed by the screw at the position where the wire harness needs to be fixed. The fixing frame can also be set as a plastic bracket fixing structure, and the plastic bracket fixing structure can be an integrated plastic bracket, and there are multiple fixing points on the plastic bracket, which can fix the wire harness on the bracket. The plastic bracket fixing structure can also be a combined plastic bracket: it is composed of multiple plastic parts and can be combined and disassembled as needed. Of course, the fixing frame can also be set to other structural forms that meet the requirements, which are determined according to actual conditions and will not be elaborated here.

[0069] On the basis of the above embodiment, the second mounting seats can all be U-shaped structures, and second rubber buffer pads can be provided between the second mounting seats and the second floor body to achieve shock absorption and buffering of the second floor body.

[0070] During actual installation, the second mounting seat can be fixed to the upper skin 1 by screws, and the connection between the second mounting seat and the second floor body can be realized by a snap-fit ​​structure. Specifically, a snap-fit ​​groove can be provided on the side of the second floor body facing the upper skin 1, and a snap-fit ​​protrusion can be provided on the second mounting seat. During the assembly process, the snap-fit ​​protrusion slides from one end of the snap-fit ​​groove into the snap-fit ​​groove to realize the snap-fit ​​cooperation between the second floor body and the second mounting seat. Of course, there can be other fixing methods between the second floor body and the second mounting seat, which are determined according to actual conditions and will not be described in detail here.

[0071] It should be noted that the second mounting base can be made of metal material, or other materials that meet the requirements, which is determined according to actual conditions and will not be elaborated here.

[0072] On the basis of the above embodiments, in order to improve the structural strength of the composite material floor, the second mounting seat and the upper skin 1 can be set as an integrated structure. In the actual processing process, the second mounting seat and the upper skin 1 can be integrally formed by injection molding.

[0073] It should be noted that, according to actual installation requirements, mutually matching positioning grooves and positioning protrusions can be provided in adjacent second floor bodies to facilitate positioning of adjacent second floor bodies during installation.

[0074] Specifically, a positioning protrusion can be provided on one side of the second floor body, and the positioning protrusion is located on the surface of the second floor body facing the upper skin 1. A positioning recess is provided on the other side of the second floor body, and the positioning recess is located on the surface of the second floor body facing away from the upper skin 1. During the assembly of the second floor, the positioning recess of one of the second floor bodies in the adjacent second floor bodies is just adjacent to the positioning protrusion of the other second floor body. When installing the second floor body, the positioning recess of the adjacent second floor body cooperates with the positioning protrusion to enable the adjacent second floor bodies to be positioned and installed, and at the same time, the adjacent second floor bodies can be snap-connected, which is beneficial to improving the overall structural strength of the floor.

[0075] Of course, the second floor body may also be installed in other ways that meet the requirements, which is determined based on actual conditions and will not be elaborated here.

[0076] On the basis of the above embodiments, the weight-reducing material 4 can be specifically configured as weight-reducing foam, weight-reducing honeycomb or weight-reducing plastic.

[0077] Specifically, the weight-reducing material 4 can be set as polyurethane foam, which is divided into soft polyurethane foam and hard polyurethane foam. Soft polyurethane foam is soft and elastic, and is often used for filling furniture cushions, mattresses, etc. Hard polyurethane foam has higher strength and hardness, and can be used in building insulation, refrigeration equipment and other fields; or the weight-reducing material 4 can be set as polyethylene foam, which has good flexibility, chemical corrosion resistance and waterproof properties. It can be divided into low-density polyethylene foam and high-density polyethylene foam, and foams of different densities are suitable for different occasions. The weight-reducing material 4 can also be set as a foaming material, and the specific foaming material can be expanded polystyrene (EPS), which has the characteristics of light weight, heat insulation, sound absorption, shock absorption and the like. The density is small, usually 10-30kg / m 3 The weight of the product can be greatly reduced. The cost is low, the processing performance is good, and it can be formed into various shapes through molds; the foaming material can also be foamed polyurethane (PU), which has a wide range of hardness and can be adjusted according to different needs. It has good heat insulation and sound insulation performance, and also has certain strength and wear resistance. The density is generally 30-80kg / m 3 about.

[0078] Of course, the weight-reducing material 4 can also be set to other materials, which are determined according to actual conditions and will not be elaborated here.

[0079] On the basis of the above embodiment, the reinforcing ribs 3 can be arranged obliquely in the space between the upper skin 1 and the lower skin 2, and the cross-section of the space between adjacent reinforcing ribs 3 is a trapezoidal structure or an inverted trapezoidal structure.

[0080] The space enclosed by the upper skin 1 and the lower skin 2 is divided into a plurality of different spacing areas by the reinforcing ribs 3. Different spacing areas can be filled with different weight-reducing materials 4, or the same weight-reducing materials 4 can be filled in different spacing areas. The specific details are determined according to actual conditions and will not be elaborated here.

[0081] In this specific embodiment, the reinforcing ribs 3 are arranged in a long strip shape, and the long strip-shaped reinforcing ribs 3 are arranged obliquely in the space enclosed by the upper skin 1 and the lower skin 2. The long strip-shaped reinforcing ribs 3 occupy a small space and have little impact on the internal space between the skins. In addition, the long strip-shaped reinforcing ribs 3 are relatively simple to process and can be manufactured by extrusion, milling and other methods.

[0082] Of course, depending on the actual situation, the reinforcing ribs 3 in the space enclosed by the outer skin and the lower skin 2 in the present invention can also be set to other shapes that meet the requirements, which are determined according to the actual situation and will not be elaborated here.

[0083] Specifically, the reinforcement rib 3 can also be set as a T-shaped reinforcement rib, which is shaped like the letter "T" and consists of a transverse part and a longitudinal part. The transverse part is connected to the upper skin 1 to provide support and stability; the longitudinal part increases the height of the structure and improves the bending resistance; the T-shaped reinforcement rib can be designed with different sizes and thicknesses as needed to meet different strength requirements; the installation of the T-shaped reinforcement rib is relatively convenient and can be connected to the skin by welding, riveting, etc.

[0084] In addition, the reinforcement rib 3 can also be set to an L-shaped structure. The shape of the reinforcement rib 3 is a right angle, similar to the letter "L", which can provide support in two directions and enhance the strength of the skin at the edges and corners; the L-shaped reinforcement rib can usually be integrally formed with the skin, reducing the connection points and improving the integrity of the structure; the angle and size can be adjusted according to different stress conditions.

[0085] Depending on the actual situation, the reinforcing ribs 3 in this specific embodiment can also be set to other shapes or materials, which are determined according to the actual situation and will not be elaborated here.

[0086] In a specific embodiment, in order to avoid causing a fire or to isolate the fire when a fire occurs, a fireproof coating can be provided on the bottom surface of the lower skin 2 and the upper surface of the upper skin 1. The fireproof coating can effectively prevent the spread of fire and reduce casualties in accidents.

[0087] When setting up fire retardant coating, before construction, the surface of the substrate needs to be cleaned, rusted, and degreased to ensure that the coating can adhere well to the substrate. After construction, the quality of the fire retardant coating needs to be inspected, including the thickness, adhesion, and appearance quality of the coating. It can only be put into use after passing the inspection.

[0088] Specifically, the fireproof coating may include a carbonizing agent, a dehydration catalyst, a foaming agent, and a base material. Among them, the carbonizing agent is such as starch, pentaerythritol and its dimer, trimer, etc. At high temperature, the carbonizing agent can promote the coating to form a non-flammable carbon layer, which plays a role in heat insulation and preventing the spread of flames; pentaerythritol can produce a large amount of carbonization products during the expansion process, which improves the strength and stability of the carbon layer; the dehydration catalyst is usually ammonium polyphosphate, etc. Its function is to promote the dehydration and carbonization of the carbonizing agent at a certain temperature and accelerate the expansion and foaming process; ammonium polyphosphate decomposes when heated to produce phosphoric acid, which dehydrates the carbonizing agent to form a carbon layer, and releases non-combustible gas at the same time, causing the coating to expand; common foaming agents include melamine, dicyandiamide, etc. At high temperatures, the foaming agent decomposes and releases non-combustible gases, such as nitrogen and carbon dioxide, which expand the coating to form a foam structure; this foam structure has good thermal insulation properties and can effectively prevent heat from being transferred to the substrate; the base material generally uses synthetic resins, such as acrylic resins, epoxy resins, etc.; the role of the base material is to bond the various components together to form a uniform coating and provide a certain degree of adhesion and durability; acrylic resin has good weather resistance and chemical corrosion resistance, and is suitable for fire protection in various environments. On the other hand, the fire-retardant coating can also include non-expanding fire-retardant coating materials, which include inorganic thermal insulation materials, binders, and flame retardants. Among them, inorganic thermal insulation materials, such as vermiculite, are a natural layered silicate mineral with good thermal insulation and high temperature resistance. In a fire, vermiculite can expand to form an insulation layer to prevent heat transfer; for example, perlite, a glassy rock formed by rapid cooling of acidic lava from volcanic eruptions, expands after heating to form a porous granular material. Perlite has the characteristics of light weight, heat insulation and non-combustibility. For example, glass microspheres are made of borosilicate raw materials through high-tech processing. They have small particle size, are hollow, and have good thermal insulation properties and chemical stability. Binders, such as silicate cement, are a commonly used inorganic binder with the characteristics of high strength, good durability, and high temperature resistance. In non-expanding fire retardant coatings, cement can firmly bond inorganic thermal insulation materials to the substrate. For example, water glass, an aqueous solution of sodium silicate, has good adhesion and water resistance. Water glass can gradually harden in the air to form a solid coating. Flame retardants, such as aluminum hydroxide, are a commonly used inorganic flame retardant. They decompose at high temperatures to absorb heat, release crystal water, and reduce the flame temperature. At the same time, the aluminum oxide produced by the decomposition can form a dense protective film to prevent the transfer of oxygen and heat. For example, magnesium hydroxide, similar to aluminum hydroxide, has good flame retardant properties. The decomposition temperature of magnesium hydroxide is relatively high, and it is suitable for fire protection at higher temperatures.

[0089] Of course, the fire retardant coating can also be made of other materials that meet the requirements, which will be determined based on actual conditions and will not be elaborated here.

[0090] In this specific embodiment, by providing a fireproof coating on the bottom surface of the lower skin 2 and the upper surface of the upper skin 1, the spread of fire can be effectively blocked and the damage caused by fire can be reduced.

[0091] On the basis of the above embodiments, in order to further improve the sound insulation effect of the composite material floor, a sound insulation filler can be arranged in the space enclosed by the upper skin 1 and the lower skin 2, and the reinforcing ribs 3 divide the space enclosed by the upper skin 1 and the lower skin 2 into a plurality of independent filling spaces, one of the adjacent filling spaces is filled with a weight-reducing material 4, and the other of the adjacent filling spaces is filled with a sound insulation filler.

[0092] It should be noted that the sound insulation filler in this specific embodiment can be set to a fiber material. Specifically, the fiber material can be glass fiber, rock wool or polyester fiber; of course, the sound insulation filler can also be set to a foam material, such as polystyrene foam (EPS), polyurethane foam (PU), etc., which is determined according to actual conditions and will not be elaborated here.

[0093] In this specific embodiment, the sound insulation filler can be provided to effectively improve the sound insulation effect of the composite material floor, which is beneficial to avoid the noise generated by the running state of the train from being transmitted into the carriage, making the carriage environment more comfortable.

[0094] On the other hand, an insulating coating may be provided on the inner surface of the upper skin 1 , the outer surface of the upper skin 1 , the inner surface of the lower skin 2 , and the outer surface of the lower skin 2 .

[0095] By providing an insulating coating, the insulation effect of the composite material floor can be effectively improved. When there is leakage in the electrical appliances at the bottom of the car or in the wiring harness passing through the composite material floor, the insulating coating can effectively prevent the current from breaking through the composite material floor, thereby improving the safety in the car.

[0096] In a specific embodiment, during actual use, in order to timely obtain the temperature information of the composite material floor and promptly discover possible fire situations, a first temperature detection component can be set on the upper surface of the upper skin 1, a second temperature detection component can be set on the lower surface of the lower skin 2, and a third temperature detection component can be set in the cavity enclosed by the upper skin 1 and the lower skin 2.

[0097] During actual use, the first temperature detection component is used to detect the first temperature information of the upper surface of the upper skin 1 in real time, the second temperature detection component is used to detect the second temperature information of the lower surface of the lower skin 2 in real time, and the third temperature detection component is used to detect the third temperature information in the cavity enclosed by the upper skin 1 and the lower skin 2 in real time; when at least one of the first temperature information, the second temperature information, and the third temperature information is higher than the maximum temperature value of the preset temperature, the relevant early warning equipment is controlled to issue a warning message so that maintenance personnel can perform maintenance in time to avoid the occurrence of disasters.

[0098] In this specific embodiment, by setting the first temperature detection component, the second temperature detection component, and the third temperature detection component, the upper surface of the upper skin 1, the lower surface of the lower skin 2, and the temperature information between the upper skin 1 and the lower skin 2 can be detected in real time, and the temperature of different positions of the composite material floor can be monitored. When the temperature is higher than the maximum temperature value of the preset temperature, a prompt message is issued in time, which is conducive to discovering problems before a disaster occurs and avoiding the occurrence of a disaster; at the same time, it is conducive to maintenance personnel to accurately find the maintenance position and reduce the difficulty of maintenance.

[0099] In a specific embodiment, in order to avoid safety hazards such as bulging or bulging of the floor body after long-term use, a distance detection component for detecting the distance between the upper floor body and the upper skin 1 can be provided on the upper surface of the upper skin 1. When the distance information detected by the distance detection component is greater than the maximum value of a preset distance range or when the distance information detected by the distance detection component is less than the minimum value of the preset distance range, the relevant early warning equipment is controlled to issue a warning message so that maintenance personnel can perform maintenance in time.

[0100] In this specific embodiment, by setting up a distance detection component, the flatness of the floor surface can be monitored in real time. In the event that the floor is unexpectedly bulged or dented, relevant information can be obtained immediately to buy more time for maintenance personnel to carry out repairs. Passengers can also be reminded in time to avoid safety accidents.

[0101] In addition to the above-mentioned composite material floor, the present invention also provides a rail vehicle including the composite material floor disclosed in the above-mentioned embodiment. For the structures of other parts of the rail vehicle, please refer to the prior art and will not be described in detail herein.

[0102] In a specific embodiment, a rail vehicle includes a body shell, a body frame and interior decoration. Specifically, the body shell includes side walls, a roof and end walls. The side walls are located on both sides of the body and are made of metal plates or composite materials. The side walls usually have a certain strength and rigidity and can withstand the air pressure and vibration during the operation of the vehicle; the side walls may be provided with windows, doors, vents and other components. The windows provide a field of vision for passengers, the doors are used for passengers to get on and off the vehicle, and the vents ensure air circulation in the vehicle; the roof covers the top of the body and plays a role in protecting the equipment and passengers in the vehicle. The roof usually adopts an arc design to reduce air resistance; the roof may be equipped with pantographs, air conditioning units, ventilation equipment and other components. The pantograph is used to obtain electricity from the contact network, the air conditioning unit provides a comfortable temperature environment in the vehicle, and the ventilation equipment ensures fresh air in the vehicle; the end walls are located at both ends of the body and connect the side walls and the roof. The end walls usually have a high strength and can withstand the impact force of the vehicle during a collision; the end walls may be provided with hooks, buffer devices, electrical connectors and other components. Couplers are used to connect adjacent vehicles, buffers act as cushions when vehicles collide, and electrical connectors are used to transmit power and signals.

[0103] The body frame includes the chassis, side frame and roof frame. The chassis is the bottom structure of the body, bearing the weight of the body and various loads. The chassis is usually composed of longitudinal beams, cross beams and floors. The longitudinal beams and cross beams are generally made of high-strength steel and have sufficient strength and rigidity. The floor can be made of metal plates or composite materials with good wear resistance and anti-skid properties. The chassis may also be equipped with bogies, brakes, electrical equipment and other components. The bogie supports the body and ensures the smooth operation of the vehicle. The brakes are used for braking the vehicle. The electrical equipment provides power and control signals for the vehicle. The side frame is composed of columns, cross beams and reinforcing ribs 3, etc., and together with the side walls, it constitutes the side structure of the body. The side frame is usually made of high-strength steel or aluminum alloy materials, with good strength and rigidity. The side frame may be equipped with window frames, door rails, handrails and other components. The window frame is used to fix the window, the door rail provides guidance for the movement of the door, and the handrail provides support for the passengers. The roof frame is composed of longitudinal beams, cross beams and arch structures, and together with the roof, it forms the top structure of the vehicle body. The roof frame is usually made of high-strength steel or aluminum alloy materials, with good strength and rigidity; the roof frame may be equipped with components such as pantograph mounting brackets, air conditioning unit mounting brackets, and ventilation equipment mounting brackets. The pantograph mounting bracket is used to fix the pantograph, the air conditioning unit mounting bracket provides support for the air conditioning unit, and the ventilation equipment mounting bracket is used to install ventilation equipment.

[0104] The interior decoration of the car includes seats, armrests, interior panels, floor coverings, etc. Among them, the seats provide a place for passengers to sit and are usually made of materials such as plastic, fabric or leather. The design of the seat should conform to the principles of ergonomics and provide a comfortable riding experience; the seat may have adjustment functions, such as backrest angle adjustment, seat front and rear adjustment, etc., to meet the needs of different passengers. The armrests are installed on the side walls and pillars in the car to provide support for passengers. The armrests are usually made of metal pipes or plastics, with certain strength and anti-slip properties; the height and position of the armrests should be designed according to the principles of ergonomics to facilitate passengers to grasp. The interior panels cover the body frame and play a decorative and protective role. The interior panels are usually made of plastic, aluminum plates or composite materials, with good appearance and durability; the interior panels may be equipped with advertising spaces, indicator lights, emergency call buttons and other components. The advertising space provides display space for commercial advertisements, the indicator lights are used to indicate the operating status of the vehicle, and the emergency call button provides a channel for passengers to seek help in an emergency. The floor covering is a structure laid on the upper surface of the first floor body 8 or the second floor body mentioned in the above embodiment, and the floor covering is laid on the floor of the carriage to play the role of anti-slip, wear-resistant and beautiful. The floor covering is usually made of materials such as rubber, plastic or carpet; the color and pattern of the floor covering should be coordinated with the overall style of the carriage to provide passengers with a comfortable visual experience.

[0105] In the actual use of the rail vehicle provided in this specific embodiment, since at least part of the structure of the composite material floor is made of carbon fiber material, the overall weight of the rail vehicle can be reduced, which is beneficial to achieving lightweight of the vehicle and reducing the energy consumption of train operation.

[0106] The "first" and "second" in the first mounting seat 7 and the second mounting seat, the first floor body 8 and the second floor body, the first rubber buffer pad and the second rubber buffer pad mentioned in the present application document are only for distinguishing the different positions and there is no order of precedence.

[0107] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. Any combination of all embodiments provided by the present invention is within the protection scope of this invention and will not be described in detail here.

[0108] The composite material floor and rail vehicle provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A composite material floor, characterized in that: It comprises an upper skin (1), a lower skin (2), and a reinforcing rib (3) arranged between the upper skin (1) and the lower skin (2), wherein one end of the reinforcing rib (3) is connected to the upper skin (1) and the other end is connected to the lower skin (2); A weight-reducing material (4) is filled between the upper skin (1) and the lower skin (2); at least one of the upper skin (1), the lower skin (2) and the reinforcing ribs (3) is made of carbon fiber.

2. The composite material floor according to claim 1, characterized in that: It also includes a first floor body (8), the outer surface of the upper skin (1) is provided with a mounting recess (5), the cross section of the mounting recess (5) is an inverted trapezoidal structure, the mounting recess (5) is used to set a first mounting seat (7), the first mounting seat (7) is used to fix the adjacent first floor body (8), and the first floor body (8) is set at a protruding position between adjacent mounting recesses (5).

3. The composite material floor according to claim 2, characterized in that: The first mounting seat (7) is a U-shaped structure, and a first rubber buffer pad is provided between the first mounting seat (7) and the first floor body (8); And / or, the first mounting seat (7) and the upper skin (1) are an integrated structure.

4. The composite material floor according to claim 1, characterized in that: It also includes a second floor body, the outer surface of the upper skin (1) is provided with a mounting protrusion (6), the mounting protrusion (6) is used to set a second mounting seat, the second mounting seat is used to fix the adjacent second floor body, and the second floor body is arranged at a recessed position between adjacent mounting protrusions (6).

5. The composite material floor according to claim 4, characterized in that: A wire threading space for passing a wire harness through and a fixing frame for fixing the wire harness are provided between the second floor body and the upper skin (1).

6. The composite material floor according to claim 4, characterized in that: The second mounting seats are all U-shaped structures, and a second rubber buffer pad is provided between the second mounting seats and the second floor body; And / or, the second mounting seat and the upper skin (1) are an integrated structure.

7. The composite material flooring according to claim 1, characterized in that: The weight-reducing material (4) is weight-reducing foam, weight-reducing honeycomb, or weight-reducing plastic.

8. The composite material flooring according to claim 1, characterized in that: The reinforcing ribs (3) are arranged obliquely in the space between the upper skin (1) and the lower skin (2), and the cross-section of the space between adjacent reinforcing ribs (3) is a trapezoidal structure or an inverted trapezoidal structure.

9. The composite material flooring according to claim 1, characterized in that: The bottom surface of the lower skin (2) and the upper surface of the upper skin (1) are both provided with a fireproof coating; A sound insulation filler is arranged in the space enclosed by the upper skin (1) and the lower skin (2); the reinforcing ribs (3) divide the space enclosed by the upper skin (1) and the lower skin (2) into a plurality of independent filling spaces; one of the adjacent filling spaces is filled with the weight-reducing material (4), and the other of the adjacent filling spaces is filled with the sound insulation filler; The inner surface of the upper skin (1), the outer surface of the upper skin (1), the inner surface of the lower skin (2), and the outer surface of the lower skin (2) are all provided with an insulating coating; The upper surface of the upper skin (1) is provided with a first temperature detection member, and the lower surface of the lower skin (2) is provided with a second temperature detection member; The upper surface of the upper skin (1) is provided with a distance detection member for detecting the distance between its upper floor body and the upper skin (1).

10. A rail vehicle, characterized in that: The composite material floor comprises the composite material floor according to any one of claims 1 to 9.

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