Rail vehicle and integrated sound and heat shield therefor

Abstract

This application discloses a rail vehicle and its integrated sound and heat insulation cover, relating to the field of rail vehicle technology. The integrated sound and heat insulation cover includes a sound and heat insulation cover body, which has an aluminum cover plate layer, a sound insulation layer, and a heat insulation layer. The sound insulation layer is used to block the mutual conduction of sound waves along both sides of its thickness; the heat insulation layer is used to block the mutual conduction of heat along both sides of its thickness. The aluminum cover plate layer, the sound insulation layer, and the heat insulation layer are arranged sequentially along the thickness direction of the sound and heat insulation cover body and are adhered to each other. The aluminum cover plate layer is located on the inner side of the integrated sound and heat insulation cover. This integrated sound and heat insulation cover can greatly improve the passenger experience while meeting the interior decoration requirements.

Description

Technical Field

[0001] This application relates to the field of rail vehicle technology, and more specifically, to a rail vehicle and its integrated sound and heat insulation cover. Background Technology

[0002] Rail vehicles are often equipped with interior trim panels to separate the car body from the passenger compartment, thereby improving the overall aesthetics and comfort of the interior. However, as the operating speed of rail vehicles increases, aerodynamic noise and wheel-rail noise sources increase rapidly, leading to increased noise levels inside the vehicle. Traditional rail vehicle interior trim panels are directly fixed to the car body via a frame; however, practical experience has shown that their heat and sound insulation effects are generally poor, resulting in a less than ideal passenger experience.

[0003] In conclusion, how to improve the comfort of the interior environment of rail vehicles is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide an integrated sound and heat insulation cover that can greatly improve the passenger experience while meeting the interior decoration requirements of the vehicle.

[0005] Another objective of this application is to provide a rail vehicle comprising the aforementioned integrated sound and heat insulation cover.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] An integrated sound and heat insulation cover includes: a sound and heat insulation cover body, wherein the sound and heat insulation cover body has an aluminum cover plate layer, a sound insulation layer, and a heat insulation layer, wherein:

[0008] The sound insulation layer is used to block the transmission of sound waves between the two sides of its own thickness.

[0009] The insulation layer is used to block heat from being conducted between the two sides of its own thickness.

[0010] Furthermore, the aluminum cover layer, the sound insulation layer, and the heat insulation layer are arranged sequentially along the thickness direction of the sound insulation and heat insulation cover body and are adhered to each other, and the aluminum cover layer is located on the inner side of the integrated sound insulation and heat insulation cover.

[0011] Preferably, the top side of the sound insulation and heat insulation cover body is provided with a mounting beam;

[0012] The top wall of the mounting beam has a vehicle body mounting port for inserting the first fastener for connecting the sound insulation and heat insulation cover body to the vehicle body;

[0013] The bottom wall of the mounting beam has a groove for inserting the second fastener for connecting the sound insulation and heat insulation cover body to the roof interior panel, and for engaging the head end of the second fastener.

[0014] Preferably, the sound insulation and heat insulation cover body is provided with a luggage rack mounting interface assembly, the luggage rack mounting interface assembly including a first mounting pad;

[0015] The sound insulation and heat insulation cover body has a receiving opening at the middle of its height. The first end of the receiving opening is located on the outer surface of the sound insulation and heat insulation cover body, and the second end is located on the inner surface of the sound insulation and heat insulation cover body.

[0016] The first mounting plate is disposed on one side of the second end of the receiving opening, and the first mounting plate has a plurality of first mounting through holes for inserting third fasteners to realize the installation of the luggage rack.

[0017] Preferably, the luggage rack mounting interface assembly further includes a cover plate;

[0018] The cover plate is placed on one side of the first end of the receiving opening. The first mounting pad has a concave structure, and the concave side of the first mounting pad is opposite to the cover plate. The first mounting pad and the cover plate form a cold-proof cavity.

[0019] The cover plate has clearance holes for the luggage rack mounting feet to pass through;

[0020] The cold-proof cavity and / or the mounting beam are filled with heat-insulating filler.

[0021] Preferably, the inner side of the sound insulation and heat insulation cover body is provided with a wire rack and / or a wall panel lamp wiring rack and / or a lamp wiring rack;

[0022] The cable tray is located near the top side of the sound insulation and heat insulation cover body, while the wall panel light cable tray and the light cable tray are both located near the bottom side of the sound insulation and heat insulation cover body.

[0023] Preferably, a second mounting pad is provided on the outer side of the sound insulation and heat insulation cover body, and the second mounting pad is close to the bottom side of the sound insulation and heat insulation cover body;

[0024] Both the second mounting pad and the sound insulation and heat insulation cover body have a second mounting through hole. The second mounting through hole of the second mounting pad and the second mounting through hole of the sound insulation and heat insulation cover body extend coaxially and are used to insert a fourth fastener to realize the installation of the luggage rack.

[0025] Preferably, it also includes a first sound insulation pad, a second sound insulation pad, a third sound insulation pad, and a fourth sound insulation pad;

[0026] The first sound insulation pad is laid on the inner surface of the top wall of the mounting beam;

[0027] The second sound insulation pad is laid on the inner side of the first mounting plate;

[0028] The third sound insulation pad is laid on the bottom outer side of the sound insulation and heat insulation cover body, the fastener for mounting the lamp wire frame passes through the third sound insulation pad, and the second mounting pad is sandwiched between the top edge of the third sound insulation pad and the bottom edge of the heat insulation layer.

[0029] The fourth sound insulation pad is laid on the bottom inner side of the sound insulation and heat insulation cover body to be sandwiched between the fasteners for connecting the vehicle body and the sound insulation and heat insulation cover body on the bottom side of the sound insulation and heat insulation cover body.

[0030] Preferably, a support sleeve is nested inside the sound insulation and heat insulation cover body. The support sleeve is used to insert cold-proof plugs, and the support sleeve extends along the thickness direction of the sound insulation and heat insulation cover body.

[0031] A rail vehicle comprising the integrated sound and heat insulation cover as described in any of the preceding claims.

[0032] Preferably, it also includes a vehicle body, with the bottom side of the integrated sound and heat insulation cover overlapping the vehicle body;

[0033] The bottom and top sides of the integrated sound and heat insulation cover are detachably connected to the vehicle body by fasteners;

[0034] The integrated sound and heat insulation cover is detachably connected to the vehicle body at its midpoint via a cold-proof plug.

[0035] In this application, the sound insulation and heat insulation cover body is the main structure of the integrated sound insulation and heat insulation cover, which is an integrated structure formed by three layers being laid and adhered to each other. The three layers are an aluminum cover layer, a sound insulation layer, and a heat insulation layer.

[0036] The aluminum cover layer provides the main structural strength and rigidity for the integrated sound and heat insulation cover, and the aluminum cover layer can be an integrated plate structure or a structure formed by splicing several plates.

[0037] The sound insulation layer is used to reduce the transmission of sound waves on both the inner and outer sides of the integrated sound insulation and heat insulation cover, so as to reduce the impact of in-vehicle sound on the external environment of the vehicle body and reduce the impact of in-vehicle noise on passengers. The sound insulation layer can be made of foam, sound-absorbing cotton or sound-insulating felt, etc. Preferably, the sound insulation layer is a sound insulation and vibration damping coating.

[0038] Similarly, the heat insulation layer is used to reduce the heat conduction between the inside and outside of the integrated sound insulation and heat insulation cover, so as to prevent the rapid conduction of heat or cold from outside the vehicle to the inside of the vehicle, thereby preventing the external environment of the vehicle from affecting the interior environment and helping to create a comfortable temperature environment inside the vehicle. The heat insulation layer can be made of glass wool, carbon fiber, or heat insulation felt, etc.

[0039] The beneficial effect is that this integrated sound and heat insulation cover can not only meet the needs of vehicle interior decoration, but also provide sound and heat insulation, greatly improving the passenger experience. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of a specific embodiment provided in this application;

[0042] Figure 2 This is a longitudinal sectional view of a specific embodiment provided in this application;

[0043] Figure 3 This is an exploded view of a specific embodiment provided in this application;

[0044] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0045] Figure 5 A front view of the luggage rack mounting interface assembly of a specific embodiment provided in this application;

[0046] Figure 6 This is a partially enlarged schematic diagram of the luggage rack mounting interface component in a specific embodiment provided in this application;

[0047] Figure 7 This is a schematic diagram of the structure of the luggage rack mounting interface assembly provided in a specific embodiment of this application;

[0048] Figure 8 This is a schematic diagram of the structure of the first mounting pad in a specific embodiment provided in this application;

[0049] Figure 9 for Figure 2 Enlarged view of point A in the middle;

[0050] Figure 10 for Figure 2 Enlarged diagram of point B in the middle.

[0051] Figure label:

[0052] 1-Sound and heat insulation cover body; 101-Aluminum cover layer; 102-Sound insulation layer; 103-Heat insulation layer;

[0053] 2-Mounting beam; 201-Slide groove;

[0054] 3-Luggage rack mounting interface assembly; 301-First mounting pad; 311-First mounting through hole; 302-Cover plate; 321-Leaving through hole;

[0055] 4- Filler;

[0056] 5-Cable tray; 6-Wall panel light cable tray; 7-Light cable tray;

[0057] 8-Second mounting plate;

[0058] 9-First sound insulation pad; 10-Second sound insulation pad; 11-Third sound insulation pad; 12-Fourth sound insulation pad;

[0059] 13-Support sleeve;

[0060] 14-Cold protection plug. Detailed Implementation

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0062] The core of this application is to provide an integrated sound and heat insulation cover that can greatly improve the passenger experience while still meeting the interior decoration requirements. Another core aspect of this application is to provide a rail vehicle that includes the aforementioned integrated sound and heat insulation cover.

[0063] This application provides an integrated sound and heat insulation cover, including a sound and heat insulation cover body 1. The sound and heat insulation cover body 1 has an aluminum cover layer 101, a sound insulation layer 102, and a heat insulation layer 103. The sound insulation layer 102 is used to block the mutual conduction of sound waves along both sides of its own thickness. The heat insulation layer 103 is used to block the mutual conduction of heat along both sides of its own thickness. The aluminum cover layer 101, the sound insulation layer 102, and the heat insulation layer 103 are arranged sequentially along the thickness direction of the sound and heat insulation cover body 1 and are adhered to each other. The aluminum cover layer 101 is located on the inner side of the integrated sound and heat insulation cover.

[0064] refer to Figure 2 and Figure 3As explained, the sound insulation and heat insulation cover body 1 is the main structure of the integrated sound insulation and heat insulation cover, which is an integrated structure formed by three layers stacked and adhered to each other. The three layers are aluminum cover plate layer 101, sound insulation layer 102, and heat insulation layer 103.

[0065] Among them, the aluminum cover plate layer 101 provides the main structural strength and rigidity for the integrated sound and heat insulation cover, and the aluminum cover plate layer 101 can be an integrated plate structure or a structure formed by splicing several plates.

[0066] The sound insulation layer is used to reduce the transmission of sound waves on both the inner and outer sides of the integrated sound insulation and heat insulation cover, so as to reduce the impact of in-vehicle sound on the external environment of the vehicle body and reduce the impact of in-vehicle noise on passengers. The sound insulation layer can be made of foam, sound-absorbing cotton or sound-insulating felt, etc. Preferably, the sound insulation layer is a sound insulation and vibration damping coating. Furthermore, the thickness of the sound insulation and vibration damping coating ranges from 1.5mm to 2mm.

[0067] Similarly, the heat insulation layer 103 is used to reduce the heat conduction between the inner and outer sides of the integrated sound insulation and heat insulation cover, so as to prevent the rapid conduction of heat or cold from outside the vehicle to the inside of the vehicle, thereby preventing the external environment of the vehicle from affecting the interior environment, which is conducive to creating a comfortable temperature environment inside the vehicle. The heat insulation layer 103 can be made of glass wool, carbon fiber, or heat insulation felt, etc.

[0068] It should be noted that the structural type of the aluminum cover layer 101 is not limited. For example, it can be a one-piece molded plate or a layer structure formed by splicing several aluminum plates, as long as it meets the configuration requirements, structural strength, and rigidity. It should also be noted that the composition of the sound insulation layer 102 and the heat insulation layer 103 is not limited. For example, both can be homogeneous complete lay-ups that completely cover the target area, or both can include several heterogeneous lay-up blocks, and the integral lay-up formed by splicing several heterogeneous lay-up blocks covers the target area. In some preferred embodiments, the heat insulation layer 103 includes glass wool lay-up blocks and carbon fiber lay-up blocks, with the glass wool lay-up blocks laid in the upper area of ​​the sound insulation and heat insulation cover body 1 and the carbon fiber lay-up blocks laid in the lower area of ​​the sound insulation and heat insulation cover body 1.

[0069] The beneficial effect is that this integrated sound and heat insulation cover can not only meet the needs of vehicle interior decoration, but also provide sound and heat insulation, greatly improving the passenger experience.

[0070] Based on the above embodiment, the top side of the sound insulation and heat insulation cover body 1 is provided with a mounting beam 2; the top wall of the mounting beam 2 has a vehicle body mounting port for inserting a first fastener for connecting the sound insulation and heat insulation cover body 1 to the vehicle body; the bottom wall of the mounting beam 2 has a sliding groove 201 for inserting a second fastener for connecting the sound insulation and heat insulation cover body 1 to the vehicle roof interior panel, and for engaging the head end of the second fastener.

[0071] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 As explained, an installation beam 2 is fixed on the top side of the sound insulation and heat insulation cover body 1 by welding or fastener connection. The installation beam 2 adopts a hollow beam structure, such as a square beam, a T-shaped beam, or an I-shaped beam.

[0072] On the top wall of the mounting beam 2, several through holes are arranged along the length of the mounting beam 2 itself as mounting openings for the vehicle body. When assembling the integrated sound insulation and heat insulation cover onto the rail vehicle, after the top surface of the mounting beam 2 is placed against the bottom of the vehicle body, the first fastener that fixes the vehicle body and the integrated sound insulation and heat insulation cover can pass through the two, so that the integrated sound insulation and heat insulation cover can be connected to the vehicle body.

[0073] On the bottom wall of the mounting beam 2, a through groove extending along its own length is provided as a sliding groove 201. When assembling the integrated sound insulation and heat insulation cover onto the rail vehicle, after fixing the integrated sound insulation and heat insulation cover onto the roof frame, the roof interior panel is placed under the mounting beam 2. Then, the second fastener that fixes the roof interior panel and the integrated sound insulation and heat insulation cover is passed through the two. After the second fastener is inserted into place, the head end of the second fastener is engaged inside the mounting beam 2.

[0074] Furthermore, the bottom side of the sound insulation and heat insulation cover body 1 is provided with several fixing through holes along its own width direction for inserting fasteners to achieve connection with the vehicle body.

[0075] Based on the above embodiments, the sound insulation and heat insulation cover body 1 is provided with a luggage rack mounting interface assembly 3, which includes a first mounting pad 301; the sound insulation and heat insulation cover body 1 has a receiving opening at the middle of its height, the first end opening of the receiving opening is located on the outer surface of the sound insulation and heat insulation cover body 1, and the second end opening is located on the inner surface of the sound insulation and heat insulation cover body 1; the first mounting pad 301 is covered on one side of the second end of the receiving opening, and the first mounting pad 301 has a plurality of first mounting through holes 311 for inserting third fasteners to realize the installation of the luggage rack.

[0076] refer to Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As can be seen in this embodiment, the integrated sound insulation and heat insulation cover is equipped with a luggage rack installation interface component 3 required for the installation of the upper luggage rack. Specifically, a through hole with a rectangular or trapezoidal cross-section is opened at a height position near the top side of the sound insulation and heat insulation cover body 1 as a receiving opening. The first mounting pad 301 in the luggage rack installation interface component 3 is located on the outside of the sound insulation and heat insulation cover body 1 and covers the opening of the receiving opening located on the outer side of the sound insulation and heat insulation cover body 1.

[0077] To meet the installation requirements of the upper luggage rack, several first mounting through holes 311 are provided on the first mounting plate 301. For example, two first mounting through holes 311 are arranged horizontally, or four first mounting through holes 311 are arranged in a square array. When installing the upper luggage rack, after its mounting feet are abutted against the first mounting plate 301, the third fastener is passed through the luggage rack mounting beam 2 and the first mounting through hole 311 of the first mounting plate 301. Then, nuts, washers, etc. are installed through the receiving opening, thus completing the installation of the upper luggage rack.

[0078] Based on the above embodiments, the luggage rack mounting interface assembly 3 further includes a cover plate 302; the cover plate 302 covers one side of the first end of the receiving opening, the first mounting pad 301 has a concave structure, and the concave side of the first mounting pad 301 is arranged opposite to the cover plate 302, the first mounting pad 301 and the cover plate 302 surround to form a cold-proof cavity; the cover plate 302 has a clearance through hole 321 for the mounting feet of the luggage rack to pass through.

[0079] refer to Figure 1 , Figure 5 , Figure 6 , Figure 7 As can be seen, in this embodiment, the luggage rack mounting interface assembly 3 is also equipped with a cover plate 302, and the periphery of the cover plate 302 is connected by adhesive or a stop joint. Figure 6 The sound insulation and heat insulation cover body 1 is provided with the riveting and other methods shown, and is covered at the opening located on the inner side of the sound insulation and heat insulation cover body 1.

[0080] A clearance through hole 321 is provided in the area opposite to the first mounting pad 301 on the cover plate 302. The clearance through hole 321 can be used for... Figure 5 and Figure 7 The hole shown is rectangular in projection along the thickness direction of the sound insulation and heat insulation cover body 1. Alternatively, a T-shaped or I-shaped hole can be used. After the installation of the upper luggage rack is completed, the cover plate 302 is placed on the opening inside the sound insulation and heat insulation cover body 1 to meet the decoration requirements.

[0081] Furthermore, the cavity formed by the first mounting pad 301 and the cover plate 302 that are set opposite to each other is the cold-proof cavity, and is filled with heat-insulating filler 4. The filler 4 can be glass wool filler 4 or carbon fiber filler 4, etc., to ensure the heat insulation effect of the integrated sound insulation and heat insulation cover.

[0082] Optionally, the interior of the mounting beam 2 can be filled with heat insulation material 4 to ensure the heat insulation capacity of the connection between the integrated sound insulation and heat insulation cover and the vehicle body and roof interior panel. It should be noted that the filling material 4 in the mounting beam 2 and the filling material 4 in the cold protection cavity can be the same or different.

[0083] It should be noted that the structural type of the cover plate 302 is not limited, as long as it can accommodate the installation requirements of the upper luggage rack and meet the requirement that the closed accommodating opening is located inside the sound insulation and heat insulation cover body 1.

[0084] In some embodiments, the cover plate 302 is an integrally formed plate.

[0085] In some embodiments, the cover plate 302 includes a plurality of cover plate 302 blocks, which are arranged in a matrix and adjacent cover plate 302 blocks overlap each other on their close sides and are connected by fasteners.

[0086] In some preferred embodiments, such as Figure 7 As shown, the cover plate 302 includes a first cover plate 302 assembly and a second cover plate 302 assembly. The first side of the first cover plate 302 assembly and the second cover plate 302 assembly have through holes extending along their own thickness direction for inserting fasteners to achieve connection with the first mounting pad 301 and the sound insulation and heat insulation cover body 1. The second side of the first cover plate 302 assembly and the second cover plate 302 assembly are both provided with clearance grooves, and the second side part of the structure of the first cover plate 302 assembly and the second cover plate 302 assembly have through holes extending along their own thickness direction for inserting fasteners to fix the first cover plate 302 assembly and the second cover plate 302 assembly with the second part of the structure overlapping. The groove walls of the clearance grooves of the first cover plate 302 assembly and the second cover plate 302 assembly form clearance through holes 321.

[0087] It should also be noted that the structural type of the first mounting plate 301 is not limited, as long as it meets the installation requirements.

[0088] In some embodiments, the first mounting pad 301 is a box-shaped structure with a T-shaped groove. The first part of the groove at the top of the T-shaped groove extends horizontally, and the second part of the groove at the bottom of the T-shaped groove extends vertically. The free end of the second part of the groove extends through the box wall of the first mounting pad 301. Correspondingly, the cover plate 302 is a T-shaped flat plate, and the cover plate 302 covers the opening of the T-shaped groove and is fixed to the edge structure of the first mounting pad 301.

[0089] In some preferred embodiments, such as Figure 7 and Figure 8As shown, the first mounting pad 301 is a box-shaped structure with a rectangular groove. The top and one side of the rectangular groove are open, and the top opening of the rectangular groove is opposite to the sound insulation and heat insulation cover body 1. Correspondingly, the cover plate 302 is a zigzag bent plate. The first end plate of the cover plate 302 covers the top opening of the rectangular groove, and the second end plate of the cover plate 302 rests on the edge of the first mounting pad 301 located on the side opening of the rectangular groove. The connecting plate between the first end plate and the second end plate of the cover plate 302 covers the side opening of the rectangular groove. The first mounting through hole 311 is opened on the bottom wall of the rectangular groove.

[0090] Based on the above embodiments, the inner side of the sound insulation and heat insulation cover body 1 is provided with a wire frame 5 and / or a wall panel light wiring frame 6 and / or a light wiring frame 7; the wire frame 5 is close to the top side of the sound insulation and heat insulation cover body 1, and the wall panel light wiring frame 6 and the light wiring frame 7 are both close to the bottom side of the sound insulation and heat insulation cover body 1.

[0091] refer to Figure 1 As explained, a wire rack 5 is integrated above the sound insulation and heat insulation cover body 1, and a wall panel light wiring rack 6 and a light wiring rack 7 are integrated below the sound insulation and heat insulation cover body 1 to facilitate cable fixing. It should be noted that the wire rack 5, the wall panel light wiring rack 6, and the light wiring rack 7 can be arbitrarily selected according to needs. For example, only one of the wire rack 5, the wall panel light wiring rack 6, and the light wiring rack 7 can be set, or any two of the wire rack 5, the wall panel light wiring rack 6, and the light wiring rack 7 can be set at the same time, or all of the wire rack 5, the wall panel light wiring rack 6, and the light wiring rack 7 can be set at the same time.

[0092] In some preferred embodiments, such as Figure 1 As shown, the inner side of the sound insulation and heat insulation cover body 1 is provided with three rows of wire frames 5, and each row of wire frames 5 is arranged along the height direction of the sound insulation and heat insulation cover body 1, that is, the height direction of the vehicle body. Several wire frames in each row are arranged along the width direction of the sound insulation and heat insulation cover body 1, that is, the length direction of the vehicle body.

[0093] Based on the above embodiment, a second mounting pad 8 is provided on the outer side of the sound insulation and heat insulation cover body 1, and the second mounting pad 8 is close to the bottom side of the sound insulation and heat insulation cover body 1; both the second mounting pad 8 and the sound insulation and heat insulation cover body 1 have a second mounting through hole, and the second mounting through hole of the second mounting pad 8 and the second mounting through hole of the sound insulation and heat insulation cover body 1 extend coaxially, for inserting a fourth fastener to realize the installation of the luggage rack.

[0094] refer to Figure 10As explained, a second mounting pad 8 is provided near the bottom side of the sound insulation and heat insulation cover body 1. The second mounting pad 8 is a flat plate structure and is located on the back side of the sound insulation and heat insulation cover body 1. Both the second mounting pad 8 and the sound insulation and heat insulation cover body 1 have a second mounting through hole that extends along their own thickness direction. After the second mounting pad 8 is laid and fixed on the sound insulation and heat insulation cover body 1, the second mounting through hole of the second mounting pad 8 and the second mounting through hole of the sound insulation and heat insulation cover body 1 extend coaxially, so that a fourth fastener can be inserted to meet the installation requirements of the lower luggage rack.

[0095] In some embodiments, such as Figure 4 As shown, the inner surface of the top wall of the mounting beam 2 is covered with a first sound insulation pad 9. In other words, the tail end of the first fastener extends into the interior of the mounting beam 2, and the tail end of the first fastener is threaded with a first nut. The sound insulation pad 9 is sandwiched between the first nut and the inner surface of the top wall of the mounting beam 2.

[0096] In some embodiments, such as Figure 6 As shown, the inner side of the first mounting plate 301 is covered with a second sound insulation pad 10.

[0097] In some embodiments, a third sound insulation pad 11 is laid on the outer bottom of the sound insulation and heat insulation cover body 1, and fasteners for mounting the lamp wire bracket 7 pass through the third sound insulation pad 11. A second mounting plate 8 is sandwiched between the top edge of the third sound insulation pad 11 and the bottom edge of the heat insulation layer 103. Figure 10 As shown, the second mounting pad 8 is located in the part of the bottom of the sound insulation and heat insulation cover body 1 where the heat insulation layer 103 is not laid. The second mounting pad 8 and the third sound insulation pad 11 are laid from top to bottom on the outer side of this part of the area, and the top edge of the second mounting pad 8 abuts against the lower side edge of the heat insulation layer 103.

[0098] Furthermore, the bottom structure of the sound insulation and heat insulation cover body 1 is bent outwards, and the bent structure is connected to the main structure of the sound insulation and heat insulation cover body 1 through a stepped section. The bottom side of the third sound insulation pad 11 abuts against and is supported on the top of the stepped section.

[0099] In some embodiments, the fourth sound insulation pad 12 is laid on the inner side of the sound insulation and heat insulation cover body 1 at the location of the aforementioned fixing through hole, and the through hole of the fourth sound insulation pad 12 extends coaxially with the aforementioned fixing through hole, so that the fasteners for connecting the bottom side of the sound insulation and heat insulation cover body 1 to the vehicle body can pass through to the inner side of the sound insulation and heat insulation cover body 1, thereby enabling the fourth sound insulation pad 12 to be clamped between the sound insulation and heat insulation cover body 1 and its bottom side connecting fasteners to the vehicle body by means of fasteners, such as Figure 10As shown, the integrated sound insulation and heat insulation cover is equipped with several fourth sound insulation pads 12, so that when the bottom side of the integrated sound insulation and heat insulation cover is fixedly connected to the vehicle body using fasteners, the fourth sound insulation pads 12 can be clamped between the fasteners and the sound insulation and heat insulation cover body 1, thereby ensuring the sound insulation effect of the bottom side of the integrated sound insulation and heat insulation cover at the connection position with the vehicle body. Optionally, the thickness of the fourth sound insulation pad is 2mm or 3mm, etc.

[0100] It should be noted that the first sound insulation pad 9, the second sound insulation pad 10, the third sound insulation pad 11 and the fourth sound insulation pad 12 are all provided with through holes along their own thickness direction for fasteners to pass through, so as to realize the connection between the integrated sound insulation and heat insulation cover and the other.

[0101] Based on the above embodiments, a support sleeve 13 is nested inside the sound insulation and heat insulation cover body 1. The support sleeve 13 is used to insert the cold-proof plug 14, and the support sleeve 13 extends along the thickness direction of the sound insulation and heat insulation cover body 1.

[0102] refer to Figure 9 As explained, in order to improve the connection stability between the integrated sound insulation and heat insulation cover and the vehicle body, and to ensure the rigidity of the sound insulation and heat insulation cover body 1 and prevent it from deforming, a support sleeve 13 is nested inside at the middle position of its own height to facilitate the insertion of the cold-proof plug 14.

[0103] In addition to the aforementioned integrated sound and heat insulation cover, this application also provides a rail vehicle that includes the integrated sound and heat insulation cover disclosed in the above embodiments. The structure of other parts of the rail vehicle can be found in the prior art, and will not be described in detail here.

[0104] Based on the above embodiments, it also includes a vehicle body, with the bottom side of the integrated sound insulation and heat insulation cover overlapping the vehicle body; the bottom and top sides of the integrated sound insulation and heat insulation cover are detachably connected to the vehicle body by fasteners; the middle position of the integrated sound insulation and heat insulation cover is detachably connected to the vehicle body by anti-freezing bolts 14.

[0105] Specifically, the integrated sound insulation and heat insulation cover has three connection interfaces along its height direction, so that the top and bottom sides of the integrated sound insulation and heat insulation cover can be connected to the vehicle body through fasteners, and the middle position of the integrated sound insulation and heat insulation cover is connected to the vehicle body through anti-freezing bolt 14.

[0106] It should be noted that the fasteners mentioned above refer to bolts or nuts. In some specific embodiments, such as... Figure 10 As shown, the bolt passes through the sound insulation and heat insulation cover body 1, with the tail end of the bolt extending to the inner side of the sound insulation and heat insulation cover body 1 and threadedly connected to the nut. The fourth sound insulation pad 12 is sandwiched between the nut and the inner side of the sound insulation and heat insulation cover body 1. That is, the fastener for connecting the bottom side of the sound insulation and heat insulation cover body 1 to the vehicle body refers to the nut; in some specific embodiments, such as Figure 4 As shown, the bolt passes through the top wall of the mounting beam 2, that is, the first fastener used to connect the sound insulation and heat insulation cover body 1 to the vehicle body refers to the bolt.

[0107] It should be noted that the relational terms such as "first" and "second" mentioned above are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities; the terms "upper surface," "lower surface," "top," and "bottom" and the directional terms "upper," "lower," "left," and "right" mentioned above are defined based on the accompanying drawings in the specification.

[0108] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0109] The foregoing has provided a detailed description of the rail vehicle and its integrated sound and heat insulation cover provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. An integrated sound and heat insulation cover, characterized in that, include: The sound and heat insulation cover body (1) has an aluminum cover layer (101), a sound insulation layer (102), and a heat insulation layer (103), wherein: The sound insulation layer (102) is used to block the transmission of sound waves to each other along both sides of its own thickness; The heat insulation layer (103) is used to block heat from being conducted to each other along both sides of its own thickness; The aluminum cover layer (101), the sound insulation layer (102), and the heat insulation layer (103) are arranged sequentially along the thickness direction of the sound insulation and heat insulation cover body (1) and adhere to each other, and the aluminum cover layer (101) is located on the inner side of the integrated sound insulation and heat insulation cover.

2. The integrated sound and heat insulation cover according to claim 1, characterized in that, The top side of the sound insulation and heat insulation cover body (1) is provided with a mounting beam (2); The top wall of the mounting beam (2) has a vehicle body mounting port for inserting the first fastener for connecting the sound insulation and heat insulation cover body (1) to the vehicle body; The bottom wall of the mounting beam (2) has a groove (201) for inserting the second fastener for connecting the sound insulation and heat insulation cover body (1) to the roof interior panel, and for engaging the head end of the second fastener.

3. The integrated sound and heat insulation cover according to claim 2, characterized in that, The sound insulation and heat insulation cover body (1) is provided with a luggage rack mounting interface assembly (3), which includes a first mounting pad (301). The sound insulation and heat insulation cover body (1) has a receiving opening at the middle of its height. The first end of the receiving opening is located on the outer surface of the sound insulation and heat insulation cover body (1), and the second end is located on the inner surface of the sound insulation and heat insulation cover body (1). The first mounting plate (301) covers one side of the second end of the receiving opening, and the first mounting plate (301) has a plurality of first mounting through holes (311) for inserting third fasteners to realize the installation of the luggage rack.

4. The integrated sound and heat insulation cover according to claim 3, characterized in that, The luggage rack mounting interface assembly (3) also includes a cover plate (302); The cover plate (302) is placed over one side of the first end of the receiving opening. The first mounting pad (301) has a concave structure, and the concave side of the first mounting pad (301) is arranged opposite to the cover plate (302). The first mounting pad (301) and the cover plate (302) form a cold-proof cavity. The cover plate (302) has a clearance through hole (321) for the mounting feet of the luggage rack to pass through; The cold-proof cavity and / or the mounting beam (2) are filled with heat-insulating filler (4).

5. The integrated sound and heat insulation cover according to claim 3 or 4, characterized in that, The inner side of the sound insulation and heat insulation cover body (1) is provided with a wire rack (5) and / or a wall panel light wiring rack (6) and / or a light wiring rack (7). The wire rack (5) is close to the top side of the sound insulation and heat insulation cover body (1), and the wall panel lamp wiring rack (6) and the lamp wiring rack (7) are both close to the bottom side of the sound insulation and heat insulation cover body (1).

6. The integrated sound and heat insulation cover according to claim 5, characterized in that, The outer side of the sound insulation and heat insulation cover body (1) is provided with a second mounting pad (8), which is close to the bottom side of the sound insulation and heat insulation cover body (1). The second mounting pad (8) and the sound insulation and heat insulation cover body (1) both have a second mounting through hole. The second mounting through hole of the second mounting pad (8) and the second mounting through hole of the sound insulation and heat insulation cover body (1) extend coaxially and are used to insert a fourth fastener to realize the installation of the luggage rack.

7. The integrated sound and heat insulation cover according to claim 6, characterized in that, It also includes a first sound insulation pad (9), a second sound insulation pad (10), a third sound insulation pad (11) and a fourth sound insulation pad (12); The first sound insulation pad (9) is laid on the inner surface of the top wall of the mounting beam (2); The second sound insulation pad (10) is laid on the inner side of the first mounting pad (301); The third sound insulation pad (11) is laid on the bottom outer side of the sound insulation and heat insulation cover body (1), the fastener for mounting the lamp wire frame (7) passes through the third sound insulation pad (11), and the second mounting pad (8) is sandwiched between the top edge of the third sound insulation pad (11) and the bottom edge of the heat insulation layer (103). The fourth sound insulation pad (12) is used to be laid on the bottom inner side of the sound insulation and heat insulation cover body (1) to be sandwiched between the fasteners for connecting the vehicle body on the bottom side of the sound insulation and heat insulation cover body (1) and the sound insulation and heat insulation cover body (1).

8. The integrated sound and heat insulation cover according to claim 6, characterized in that, The sound insulation and heat insulation cover body (1) has a support sleeve (13) nested inside. The support sleeve (13) is used to insert the cold-proof plug (14), and the support sleeve (13) extends along the thickness direction of the sound insulation and heat insulation cover body (1).

9. A rail vehicle, characterized in that, Includes the integrated sound and heat insulation cover as described in any one of claims 1-8.

10. The rail vehicle according to claim 9, characterized in that, It also includes the vehicle body, with the bottom side of the integrated sound and heat insulation cover overlapping the vehicle body; The bottom and top sides of the integrated sound and heat insulation cover are detachably connected to the vehicle body by fasteners; The integrated sound and heat insulation cover is detachably connected to the vehicle body at its midpoint height via a cold-proof bolt (14).

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