Sealing device and railway vehicle body

Abstract

The utility model relates to vehicle sealing technical field, specifically disclose sealed device and railway vehicle body, the sealed device includes connecting frame and sealing assembly, and connecting frame is provided with through groove, and the inner peripheral wall of through groove is provided with the clamping groove, sealing assembly includes first sealing piece and second sealing piece, and first sealing piece is located in the through groove and is sealed with the clamping groove and connects, second sealing piece includes threading pipe, heat shrink tube and expansion sealing material, and threading pipe is connected with heat shrink tube, and the inner surface of heat shrink tube is coated with the thermal expansion sealing layer. After the wiring harness is threaded to the second sealing piece, the heat shrink tube is heated to make the heat shrink tube contract and wrap the outer periphery of the wiring harness, and the thermal expansion sealing layer is heated to expand, which can fill the gap between the wiring harness and the wiring harness, and between the wiring harness and the heat shrink tube, thereby ensuring the sealing performance at the wiring harness. The sealed device has good sealing effect on the common cable of the railway vehicle and the wiring harness formed by different cables, and has good universality and reliability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle sealing technology, and in particular to sealing devices and rail vehicle bodies. Background Technology

[0002] For urban rail vehicles, the airtightness between the passenger compartment and the outside is a crucial factor affecting passenger comfort. Poor sealing can lead to unstable air pressure in the passenger compartment, excessive noise, and even ear discomfort for passengers.

[0003] Electrical connections between the passenger compartment and the external space of urban rail vehicles primarily rely on seals, such as those between the roof and the underframe. These seals ensure both proper wiring harness arrangement and sealing performance. Existing seals typically consist of a sealing structure and a frame. The frame connects to the vehicle body, and the sealing structure is housed within it. To accommodate wiring harnesses of different diameters, the sealing structure usually includes multiple concentric annular sealing layers that can be peeled off. Different numbers of sealing layers are peeled off to accommodate different harness diameters. However, the sealing layers have a certain thickness. When the size of the wiring harness falls within the size range formed by peeling off two adjacent sealing layers, the sealing layer may not adequately enclose the outer perimeter of the harness, leading to low sealing reliability. Furthermore, the peelable sealing layers result in material waste. Since the sealing structure is made of rubber and the frame is made of metal, temperature changes at the seal's location can cause different deformations in the rubber and metal components, potentially creating gaps between the sealing structure and the frame, thus affecting sealing performance. Furthermore, as vehicle speed increases, the effects of vibration can cause the sealing structure and frame to deteriorate, making this type of seal unsuitable for high-speed vehicles.

[0004] Therefore, a sealing device and a rail vehicle body are needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing device and a rail vehicle body to solve the problems of difficult sealing of wire harnesses, low reliability and high cost in the prior art.

[0006] On the one hand, this utility model provides a sealing device, which includes: A connecting frame is used to connect the connected parts, and the connecting frame is provided with a through groove, the inner peripheral wall of the through groove being provided with a slot. A sealing assembly includes a first sealing element and a second sealing element. The first sealing element is located in a slot and is sealed and engaged with the slot. The second sealing element includes a conduit, a heat shrink tubing, and an expansion sealing material. The conduit is sealed through the first sealing element, the heat shrink tubing is connected to one end of the conduit, and the expansion sealing material is coated on the inner surface of the heat shrink tubing.

[0007] As an optional technical solution, the second seal also includes a warning ring, which is connected between the conduit and the heat shrink tubing, and the conduit, the warning ring and the heat shrink tubing are integrally formed.

[0008] As an optional technical solution, the outer peripheral wall of the heat shrink tubing is coated with a heat-volatile coating.

[0009] As an optional technical solution, the colors of the conduit, the indicator ring, and the heat-induced volatile coating are all different.

[0010] As an optional technical solution, the sealing device further includes a third sealing element, which is connected to the connecting frame and abuts against the first sealing element to limit the position of the first sealing element relative to the connecting frame.

[0011] As an optional technical solution, the third sealing element is provided with a plug groove, and the connecting frame is plugged into the plug groove.

[0012] As an optional technical solution, the insertion slot is provided with a protrusion, and the connecting frame is provided with a groove, wherein the protrusion and the groove are inserted into each other.

[0013] As an optional technical solution, the insertion groove is provided with sealant, which is used to fill the gap between the insertion groove and the connecting frame.

[0014] As an optional technical solution, the sealing assembly includes a plurality of second sealing elements, which are spaced apart from the first sealing element.

[0015] The sealing device provided by this utility model has at least the following beneficial effects: The connecting frame of the sealing device provided by this utility model is used to connect the connected parts, and the connecting frame is provided with a through groove, and the inner peripheral wall of the through groove is provided with a slot; the sealing component includes a first sealing element and a second sealing element, the first sealing element is located in the through groove and is sealed and snapped into the slot; the second sealing element includes a conduit, a heat shrink tubing and an expansion sealing material, at least one end of the conduit is connected to a heat shrink tubing, and the inner surface of the heat shrink tubing is coated with a thermal expansion sealing layer. The inner circumferential wall of the connecting frame of this sealing device is provided with a slot, and the first sealing element of the sealing assembly is sealed and engaged in the slot, ensuring the sealing performance between the connecting frame and the first sealing element. The wire guide tube of the second sealing element passes through the first sealing element, ensuring the sealing performance between the wire guide tube and the first sealing element. After the wire harness passes through the second sealing element, heating the heat shrink tubing causes it to shrink, thus wrapping around the outer circumference of the wire harness. At the same time, the thermal expansion sealing layer coated on the inner surface of the heat shrink tubing expands when heated, filling the gaps between the wire harnesses and between the wire harness and the heat shrink tubing, thereby ensuring the sealing performance at the wire harness. Therefore, this sealing device has a good sealing effect for any number and any diameter of wire harnesses, and has good versatility and reliability.

[0016] On the other hand, the present invention provides a rail vehicle body, the rail vehicle body including a wall panel and a wiring harness, and also including a sealing device as described in any of the above embodiments, the wall panel having a through hole, the connecting frame passing through the through hole and welded to the wall panel, and the wiring harness passing through a conduit.

[0017] The rail vehicle body provided by this utility model has at least the following beneficial effects: The rail vehicle body provided by this utility model is equipped with the aforementioned sealing device. The connecting frame of the sealing device is welded to the wall panel, thereby ensuring the sealing effect between the connecting frame and the wall panel. After the wire harness is passed through the conduit, the heat shrink tubing is heated, causing it to shrink and deform, wrapping around the outer periphery of the wire harness. At the same time, the gaps between the wire harnesses and the gaps between the wire harness and the heat shrink tubing are filled by the thermally expanded sealing layer. Therefore, the rail vehicle body has good sealing performance, thereby improving the sealing effect of the passenger compartment formed by the rail vehicle body and enhancing the passenger riding experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first structure connecting the sealing device and the wire harness in an embodiment of the present invention; Figure 2 This is a schematic diagram of the first structure of the connecting frame in an embodiment of this utility model; Figure 3 This is a schematic diagram of the first structure connecting the sealing component and the wire harness in an embodiment of the present invention; Figure 4 This is a schematic diagram of the second structure connecting the sealing component and the wire harness in an embodiment of the present invention; Figure 5 This is a schematic diagram of the first structure of the third sealing element in an embodiment of this utility model; Figure 6 This is a schematic diagram of the second structure of the third sealing element in an embodiment of this utility model.

[0019] In the picture: 2. Wiring harness; 10. Connecting frame; 11. Through groove; 12. Slot; 13. Groove; 14. Welding groove; 20. Sealing assembly; 21. First seal; 22. Second seal; 221. Conduit; 222. Heat shrink tubing; 223. Thermal expansion sealing layer; 23. Indicator ring; 30. Third seal; 31. Insertion groove; 32. Protrusion; 33. Sealant. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] like Figures 1 to 6 As shown, this embodiment provides a sealing device, which includes a connecting frame 10 and a sealing component 20. The connecting frame 10 is used to connect the connected parts, and the connecting frame 10 is provided with a through groove 11. The inner peripheral wall of the through groove 11 is provided with a slot 12. The sealing component 20 includes a first sealing element 21 and a second sealing element 22. The first sealing element 21 is located in the slot 12 and is sealed and engaged with the slot 12. The second sealing element 22 includes a conduit 221, a heat shrink tubing 222 and a thermal expansion sealing layer 223. The conduit 221 is sealed through the first sealing element 21, and at least one end of the conduit 221 is connected to the heat shrink tubing 222. The inner surface of the heat shrink tubing 222 is coated with the thermal expansion sealing layer 223.

[0025] Specifically, in this embodiment, taking the application of the sealing device to a rail vehicle as an example, the connected component is the rail vehicle body. A through hole is provided on the wall panel of the rail vehicle body to connect the interior and exterior of the vehicle, ensuring the proper placement of the wiring harness 2. A connecting frame 10 passes through the through hole and is welded to the vehicle body to ensure sealing performance and connection stability between the wall panel and the connecting frame 10. A through groove 11 is provided on the connecting frame 10, connecting the interior and exterior of the vehicle to ensure that the wiring harness 2 can be arranged and connected both inside and outside the vehicle. A retaining groove 12 is provided on the inner peripheral wall of the through groove 11, and the first sealing element 21 of the sealing assembly 20 is securely engaged in the retaining groove 12, ensuring sealing performance between the connecting frame 10 and the first sealing element 21. The conduit 221 of the second sealing element 22 is sealed through the first sealing element 21, ensuring the sealing performance between the first sealing element 21 and the conduit 221. One end of the conduit 221 is connected to a heat shrink tube 222, and the inner surface of the heat shrink tube 222 is coated with a thermal expansion sealing layer 223. When sealing the wire harness 2, the wire harness 2 is first passed through the conduit 221 and the heat shrink tube 222, and after ensuring that the wire harness 2 has the required length outside the conduit 221 and the heat shrink tube 222, the heat shrink tube 222 is heated, which causes the heat shrink tube 222 to shrink and wrap around the outer periphery of the wire harness 2. At the same time, the thermal expansion sealing layer 223 coated on the inner surface of the heat shrink tube 222 expands when heated, which can fill the gaps between the wire harnesses 2 and the gaps between the wire harness 2 and the heat shrink tube 222, thereby ensuring the sealing performance at the wire harness 2. This sealing device provides good sealing for any number and diameter of wire harnesses 2, and is versatile and reliable.

[0026] Optionally, there are two specific methods for the first sealing element 21 to be sealed and engaged in the groove 12. Firstly, the first sealing element 21 is made of halogen-free EPDM rubber, giving it a certain degree of deformation capability. The external dimensions of the first sealing element 21 are larger than the dimensions of the installation space formed by the groove 12. When the first sealing element 21 is engaged in the groove 12, it compresses and deforms, thereby ensuring a sealing contact between the first sealing element 21 and the groove 12, guaranteeing the sealing performance between the first sealing element 21 and the connecting frame 10. Secondly, sealant 33 is applied to the first groove 12. When the first sealing element 21 is engaged in the groove 12, the sealant 33 fills the gap between the first sealing element 21 and the groove wall of the groove 12, thereby ensuring a sealed engagement between the first sealing element 21 and the groove 12.

[0027] Preferably, in this embodiment, the Shore hardness of the first seal 21 is greater than 70HA, thereby ensuring the engagement stability of the first seal 21 and the slot 12.

[0028] Preferably, in this embodiment, the first sealing element 21 and the conduit 221 are integrally formed, which can ensure good sealing performance between the first sealing element 21 and the conduit 221.

[0029] Optionally, in another embodiment, heat shrink tubing 222 is connected to both ends of the conduit 221, and the inner surface of each heat shrink tubing 222 is coated with a thermal expansion sealing layer 223, thereby sealing the wire harness 2 at both ends of the conduit 221 and ensuring the sealing effect at the wire harness 2.

[0030] Optionally, in this embodiment, the conduit 221 is made of nylon, which ensures that the conduit 221 can be bent, thereby facilitating the installation of the wire harness 2. Nylon has good wear resistance and a long service life, thereby ensuring good protection for the wire harness 2 and extending the service life of the wire harness 2.

[0031] Optionally, in this embodiment, the heat shrink tubing 222 is made of polyolefin with heat shrinkability, and the material of the heat shrink tubing 222 can be any of the existing technologies, without specific limitations.

[0032] Optionally, in this embodiment, the thermal expansion sealing layer 223 is formed by coating with an expansion sealant 33 material, and the expansion sealant 33 material is a water-based acrylic elastic resin. The expansion sealant 33 material can be any sealing material in the prior art that can achieve thermal expansion, and no specific limitation is made here.

[0033] Optionally, in this embodiment, the connecting frame 10 is made of metal. The material selection depends on the material of the vehicle body. When the vehicle body is an aluminum alloy body, the connecting frame 10 is made of aluminum alloy. No specific restrictions are imposed here.

[0034] Optionally, in this embodiment, the connecting frame 10 is generally square to fit the shape of the through hole on the vehicle body. In other embodiments, the shape of the connecting frame 10 can also be other shapes, such as circles, as long as it can fit the through hole on the vehicle body, and no specific limitation is made here.

[0035] Optionally, in this embodiment, the connecting frame 10 is provided with a welding groove 14 so as to be connected to the vehicle body by welding.

[0036] Furthermore, such as Figure 3 and Figure 4 As shown, the second sealing element 22 also includes a warning ring 23, which is connected between the conduit 221 and the heat shrink tubing 222, and the conduit 221, the warning ring 23 and the heat shrink tubing 222 are integrally formed.

[0037] Specifically, in this embodiment, the prompting ring 23 is disposed between the conduit 221 and the heat shrink tubing 222. The prompting ring 23 can increase the heating range of the heat shrink tubing 222, thereby effectively avoiding damage to the conduit 221 during the heating process, preventing air leakage after the conduit 221 is damaged by heat, which would affect the sealing performance inside and outside the vehicle, and at the same time, it can avoid affecting the protection effect on the wiring harness 2, thereby ensuring the performance of the conduit 221.

[0038] Specifically, in this embodiment, the conduit 221, the indicator ring 23, and the heat shrink tubing 222 are integrally formed, which can ensure that the conduit 221, the lifting ring, and the heat shrink tubing 222 have a good sealing effect.

[0039] Preferably, the indicator ring 23 is made of metal. Metal has good thermal conductivity, so when the heat shrink tubing 222 near the indicator ring 23 is heated, the indicator ring 23 can quickly exchange heat with the air, thus preventing heat transfer to the conduit 221 and ensuring the performance of the conduit 221.

[0040] Furthermore, the outer peripheral wall of the heat shrink tubing 222 is coated with a heat-volatile coating.

[0041] Specifically, in this embodiment, a heat-volatile coating is coated on the outer peripheral wall of the heat shrink tubing 222. When the heat shrink tubing 222 is heated, the heat-volatile coating will gradually evaporate. When the heat-volatile coating has completely evaporated, it indicates that the heating of the heat shrink tubing 222 has been completed, thus avoiding overheating of the heat shrink tubing 222, improving the convenience of use, and ensuring the performance of the heat shrink tubing 222.

[0042] Furthermore, the colors of the conduit 221, the indicator ring 23, and the heat-induced volatile coating are all different.

[0043] Specifically, in this embodiment, the colors of the conduit 221, the indicator ring 23, and the heat-induced volatile coating are all different, which can further provide guidance to the operator, prevent accidental burning of the conduit 221, and thus improve the ease of use.

[0044] Optionally, in this embodiment, the main function of the warning ring 23 is to provide a warning. The warning ring 23 can be set to red, the material of the conduit 221 can be set to dark gray, and the color of the heat-induced volatile coating can be set to dark green. No specific limitations are imposed here.

[0045] Furthermore, such as Figure 1 , Figure 5 and Figure 6As shown, the sealing device further includes a third seal member 30. The third seal member 30 is connected to the connection frame 10, and abuts against the first seal member 21 to limit the position of the first seal member 21 relative to the connection frame 10.

[0046] Specifically, in this embodiment, after the third seal member 30 is connected to the connection frame 10, it abuts against the first seal member 21, which can prevent the first seal member 21 from detaching from the connection frame 10, thereby improving the reliability of the sealing device.

[0047] Optionally, in this embodiment, the material of the third seal member 30 is ethylene propylene diene monomer, and its hardness is lower than that of the first seal member 21, which facilitates installation. Moreover, the third seal member 30 connected to the connection frame 10 and abutting against the first seal member 21 can add an additional seal between the connection frame 10 and the first seal member 21, further improving the sealing performance of the sealing device.

[0048] Optionally, the third seal member 30 is hollow, which facilitates part of the structure of the second seal member 22 to extend out of the third seal member 30 for the arrangement of the wire harness 2.

[0049] Further, the third seal member 30 is provided with a insertion groove 31, and the connection frame 10 is in insertion fit with the insertion groove 31.

[0050] Specifically, in this embodiment, the width dimension of the insertion groove 31 provided on the third seal member 30 is slightly smaller than the thickness dimension of the frame border of the connection frame 10, so that when the connection frame 10 is in insertion fit with the insertion groove 31, the third seal member 30 will be squeezed, thereby improving the sealing effect between the connection frame 10 and the third seal member 30.

[0051] Further, as shown in Figure 2 , Figure 5 and Figure 6 , a protruding portion 32 is provided in the insertion groove 31, a groove 13 is provided on the connection frame 10, and the protruding portion 32 is in insertion fit with the groove 13.

[0052] Specifically, in this embodiment, the insertion fit of the protruding portion 32 and the groove 13 can improve the connection stability between the third seal member 30 and the connection frame 10, prevent the third seal member 30 and the connection frame 10 from detaching, and thus improve the installation stability of the sealing device itself.

[0053] Specifically, in this embodiment, the connection frame 10 includes four side walls, and three grooves 13 are provided on each side wall. Correspondingly, the third seal member 30 is also square, so that the insertion groove 31 is in a shape of a concentric square as a whole, and three corresponding protruding portions 32 are provided in each sub-groove of the insertion groove 31, and the three protruding portions 32 are in one-to-one corresponding insertion fit with the three grooves 13.

[0054] Optionally, the number and position of the grooves 13 on each side wall of the connecting frame 10 and the number and position of the protrusions 32 in each sub-groove of the insertion slot 31 can be set according to the actual use, as long as the grooves 13 and protrusions 32 are set in correspondence, and no specific restrictions are imposed here.

[0055] Furthermore, such as Figure 6 As shown, a sealant 33 is provided in the insertion groove 31, which is used to fill the gap between the insertion groove 31 and the connecting frame 10.

[0056] Specifically, in this embodiment, a sealant 33 is provided in the insertion groove 31. The sealant 33 can fill the gap between the connecting frames 10 of the insertion groove 31, thereby improving the sealing performance between the third seal 30 and the connecting frame 10. At the same time, the sealant 33 also has a certain adhesive effect, thereby improving the connection reliability between the third seal 30 and the connecting frame 10.

[0057] Furthermore, such as Figure 1 , Figure 3 and Figure 4 As shown, the sealing assembly 20 includes a plurality of second seals 22, which are spaced apart from the first seal 21.

[0058] Specifically, in this embodiment, taking the sealing assembly 20 including four second sealing elements 22 as an example, the four second sealing elements 22 are arranged at four corners and are spaced apart, which can meet the arrangement of four sets of wire harnesses 2.

[0059] In another embodiment, the number and position of the second seals 22 disposed on the first seal 21 can be specifically set according to the actual use scenario, which will not be elaborated here.

[0060] This embodiment also provides a rail vehicle body, which includes a wall panel and a wiring harness 2, as well as the aforementioned sealing device. The wall panel has a through hole, through which a connecting frame 10 passes and is welded to the wall panel. The wiring harness 2 passes through a conduit 221. By incorporating the aforementioned sealing device, with the connecting frame 10 welded to the wall panel, the rail vehicle body ensures a tight seal between the connecting frame 10 and the wall panel. After the wiring harness 2 passes through the conduit 221, heating the heat-shrink tubing 222 causes it to shrink and deform, wrapping around the outer periphery of the wiring harness 2. Simultaneously, the gaps between wiring harnesses 2 and between the wiring harness 2 and the heat-shrink tubing 222 are filled by a thermally expanded sealing layer 223. This results in better sealing performance of the rail vehicle body, thereby improving the sealing effect of the passenger compartment and enhancing the passenger experience.

[0061] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A sealing device, characterized in that, include: A connecting frame (10) is used to connect the connected parts, and the connecting frame (10) is provided with a through groove (11), and the inner peripheral wall of the through groove (11) is provided with a slot (12). The sealing assembly (20) includes a first sealing element (21) and a second sealing element (22). The first sealing element (21) is located in the through groove (11) and is sealed and snapped into the slot (12). The second sealing element (22) includes a conduit (221), a heat shrink tube (222), and a thermal expansion sealing layer (223). The conduit (221) is sealed through the first sealing element (21). At least one end of the conduit (221) is connected to the heat shrink tube (222). The inner surface of the heat shrink tube (222) is coated with the thermal expansion sealing layer (223).

2. The sealing device according to claim 1, characterized in that, The second sealing element (22) further includes a warning ring (23), which is connected between the conduit (221) and the heat shrink tubing (222), and the conduit (221), the warning ring (23) and the heat shrink tubing (222) are integrally formed.

3. The sealing device according to claim 2, characterized in that, The outer peripheral wall of the heat shrink tubing (222) is coated with a heat-volatile coating.

4. The sealing device according to claim 3, characterized in that, The colors of the conduit (221), the indicator ring (23), and the heat-induced volatile coating are all different.

5. The sealing device according to claim 1, characterized in that, The sealing device further includes a third seal (30) connected to the connecting frame (10) and abutting against the first seal (21) to restrict the position of the first seal (21) relative to the connecting frame (10).

6. The sealing device according to claim 5, characterized in that, The third sealing element (30) is provided with a plug groove (31), and the connecting frame (10) is plugged into the plug groove (31).

7. The sealing device according to claim 6, characterized in that, The insertion slot (31) is provided with a protrusion (32), and the connecting frame (10) is provided with a groove (13). The protrusion (32) and the groove (13) are inserted into each other.

8. The sealing device according to claim 6, characterized in that, The insertion groove (31) is provided with sealant (33), which is used to fill the gap between the insertion groove (31) and the connecting frame (10).

9. The sealing device according to any one of claims 1-8, characterized in that, The sealing assembly (20) includes a plurality of second seals (22), which are spaced apart from the first seal (21).

10. A rail vehicle body, comprising wall panels and wiring harness (2), characterized in that, It also includes the sealing device according to any one of claims 1-9, wherein the wall panel has a through hole, the connecting frame (10) passes through the through hole and is welded to the wall panel, and the wire harness (2) passes through the conduit (221).

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