Urban rail vehicle cable car lower protection structure

Abstract

An urban rail vehicle cable under-vehicle protection structure comprises an urban rail vehicle and a cable arranged outside the urban rail vehicle, a transformer is arranged at the bottom of the urban rail vehicle, the transformer is connected with one end of the cable, a plurality of supports and cavities are arranged at the bottom of the urban rail vehicle, cable clamping plates are arranged at the bottoms of the supports, and the cable is clamped and fixed by the cable clamping plates. A plurality of reinforcing ribs are arranged in the cavity, a plurality of cavities are formed by the adjacent reinforcing ribs and the upper and lower walls of the cavity, openings are formed in the two ends of the cavity, the cable penetrates through the cavities in the cavity, blocking plates are arranged at the openings in the two ends of the cavity, the blocking plates are matched with the section of a cavity body of the cavity, and through holes for the cable to pass through are formed in the blocking plates. And the cable is fixed on the side wall through the wire clamp after rotating from the bottom of the railway vehicle to the side wall. According to the utility model, the cable exposed at the bottom of the vehicle is protected, the structure is simple, and the existing vehicle can be directly transformed.

Description

Technical Field

[0001] The utility model relates to the technical field of urban rail vehicle cable protection, in particular to an undercarriage protection structure for urban rail vehicle cables. Background Art

[0002] At present, the rapid development of subway transportation in my country has directly facilitated people's travel. With the popularization of subway vehicles, people are no longer satisfied with simple commuting within the city, and urban transportation has come into being. Urban trains adopt the power supply system of large railways and use 25KV cables to connect the vehicle's high-voltage current collecting devices and traction systems and auxiliary systems. If the insulation layer of the cable is damaged, the important hidden danger of short-circuiting and sparking of the train's high-voltage circuit to the ground will occur, damaging the power supply of the train and the line network, thereby greatly affecting the normal operation of the train.

[0003] The 25KV cable of the train is connected to the transformer through the roof, the outer wall and the bottom of the train. There is an equipment cabin under the subway vehicle, and the cable passes through the upper layer of the equipment cabin and is not exposed to the outer layer of the vehicle. When the cable is routed under the urban rail vehicle, it is directly exposed to the air. When the train is moving, foreign objects such as sand and gravel will hit the high-voltage cable. Therefore, in order to reduce the failure rate and operation and maintenance costs, it is particularly important to develop a set of easy-to-maintain and low-cost protection solutions. Summary of the invention

[0004] The utility model aims to provide an undercarriage protection structure for cables of urban rail vehicles, which can protect cables exposed under the vehicle bottom and has a simple structure, and can directly transform existing vehicles.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A protective structure under the cable car of a rail vehicle, comprising a rail vehicle and a cable arranged outside the rail vehicle, a transformer arranged at the bottom of the rail vehicle, the transformer connected to one end of the cable, a plurality of brackets and cavities arranged at the bottom of the bracket, a wire clamp plate arranged at the bottom of the bracket, the wire clamp plate clamps and fixes the cable, a plurality of reinforcing ribs are arranged inside the cavity, the adjacent reinforcing ribs and the upper and lower walls of the cavity form a plurality of chambers, both ends of the cavity are provided with openings, the cable passes through the chambers in the cavity, blocking plates are arranged at the openings at both ends of the cavity, the blocking plates match the cross-section of the cavity body, and a through hole for the cable to pass through is opened on the blocking plates. After the cable is transferred from the bottom of the rail vehicle to the side wall, it is fixed to the side wall by a wire clamp.

[0007] As a preferred technical solution, the bottom of the bracket close to the transformer among the plurality of brackets is an inclined surface, and the wire clamp plate arranged on the inclined surface is in an inclined state.

[0008] As a preferred technical solution, among the plurality of brackets, the bracket close to the side wall of the urban rail vehicle is longer than the other plurality of brackets.

[0009] As a preferred technical solution, the distance between the blocking plate and the cavity opening is greater than 10 mm.

[0010] As a preferred technical solution, the contact surface between the side wall of the blocking plate and the inner wall of the cavity and the contact surface between the through hole on the blocking plate and the cable are filled with rubber.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the provided cavity protects the cable, and there is no need to form a cable trough on the bottom of the urban rail vehicle. It only needs to install the cavity, which is easy to install. The cooperation of several brackets outside the cavity can adapt to various cable routing methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings:

[0014] Figure 1 This is the overall diagram of the cable wiring of the urban rail vehicle of the utility model;

[0015] Figure 2 This is a schematic diagram of the cable wiring at the transformer end of the utility model;

[0016] Figure 3 This is a schematic diagram of the cable wiring at the end of the urban rail vehicle of the utility model;

[0017] Figure 4 It is a schematic diagram of the cross section of the cavity of the utility model;

[0018] The reference numerals are as follows:

[0019] Urban rail vehicle 1, transformer 2, bracket 3, wire clamp plate 4, cable 5, cavity 6, blocking plate 7, wire clamp 8. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] Example

[0024] like Figure 1-4 As shown, a protective structure under the cable car of an urban rail vehicle comprises an urban rail vehicle 1 and a cable 5 arranged outside the urban rail vehicle 1, a transformer 2 is arranged at the bottom of the urban rail vehicle 1, the transformer 2 is connected to one end of the cable 5, a plurality of brackets 3 and cavities 6 are arranged at the bottom of the urban rail vehicle 1, a wire clamp 4 is arranged at the bottom of the bracket 3, the wire clamp 4 clamps and fixes the cable 5, a plurality of reinforcing ribs are arranged inside the cavity 6, adjacent reinforcing ribs and the upper and lower walls of the cavity 6 form a plurality of chambers, openings are arranged at both ends of the cavity 6, the cable 5 passes through the chambers in the cavity 6, blocking plates 7 are arranged at the openings at both ends of the cavity 6, the blocking plates 7 match the cross-section of the cavity 6, the opening of the cavity 6 is blocked, and a through hole for the cable 5 to pass through is opened on the blocking plate 7, and the cable 5 is fixed to the side wall through a wire clip 8 after being transferred from the bottom of the urban rail vehicle 1 to the side wall.

[0025] It is worth mentioning that the pair of brackets 3 provided play a role in guiding the routing of the auxiliary cable 5, the wire clamp 4 fixes the cable 5 at the bottom of the bracket 3 to prevent the cable 5 from shaking and reduce the activity of the cable 5, the cavity 6 provided protects the cable 5, and the plugging plate 7 provided fixes the cable 5 to prevent the cable 5 from constantly colliding and rubbing against the inner wall of the cavity 6. The plugging plate 7 completely covers the openings at both ends of the cavity 6 to form a closed space inside the cavity 6 to prevent water from entering the cavity 6 and causing corrosion of the cable 5, and the cable 5 is fixed to the side wall by the wire clip 8 provided, and the auxiliary cable 5 is connected from the roof of the urban rail vehicle 1 through the side wall to the transformer 2 at the bottom of the vehicle.

[0026] In some feasible embodiments, the bottom of the bracket 3 near the transformer 2 is an inclined surface, and the wire clamp plate 4 arranged on the inclined surface is in an inclined state. The bracket 3 and the wire clamp plate 4 assist the cable 5 to enter the cavity 6 from the transformer 2, and the inclined wire clamp plate 4 increases the turning angle to prevent the cable 5 from reducing its life due to excessive bending.

[0027] In some feasible embodiments, the length of the bracket 3 close to the side wall of the urban rail vehicle 1 is greater than that of the other brackets 3, which increases the gap between the cable 5 at the corner from the bottom of the vehicle to the side wall, so that the cable 5 can bend upward with a larger radius at the corner.

[0028] In some feasible embodiments, the distance between the blocking plate 7 and the opening of the cavity 6 is greater than 10 mm to prevent the blocking plate 7 from falling off.

[0029] In some feasible embodiments, the contact surface between the side wall of the plugging plate 7 and the inner wall of the cavity 6 and the contact surface between the through hole on the plugging plate 7 and the cable 5 are filled with rubber to prevent water from entering the cavity 6 and corroding the cable 5.

[0030] In particular, the exposed portion of the cable 5 that is not in the cavity 6 is protected by a metal protective net, which is arranged on the outside of the cable 5 through a zipper sleeve, and the outside of the metal protective net is fastened with a cloth tape, and finally fixed with a cable tie to prevent the metal protective net from moving.

[0031] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. So far, each embodiment of the present disclosure has been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here. The scope of the present disclosure is defined by the attached claims.

Claims

1. A protective structure under a cable car of a rail vehicle, comprising a rail vehicle (1) and a cable (5) arranged outside the rail vehicle (1), wherein a transformer (2) is arranged at the bottom of the rail vehicle (1), and the transformer (2) is connected to one end of the cable (5), characterized in that: The bottom of the urban rail vehicle (1) is provided with a plurality of brackets (3) and cavities (6); the bottom of the bracket (3) is provided with a wire clamp (4); the wire clamp (4) clamps and fixes the cable (5); a plurality of reinforcing ribs are provided inside the cavity (6); the adjacent reinforcing ribs and the upper and lower walls of the cavity (6) form a plurality of chambers; both ends of the cavity (6) are provided with openings; the cable (5) passes through the chambers in the cavity (6); blocking plates (7) are provided at the openings at both ends of the cavity (6); the blocking plates (7) match the cavity cross-section of the cavity (6); and the blocking plates (7) are provided with through holes for the cable (5) to pass through; the cable (5) is fixed to the side wall through a wire clamp (8) after being transferred from the bottom of the urban rail vehicle (1) to the side wall.

2. The protective structure under the cable car of a rail vehicle according to claim 1, characterized in that: The bottom of a bracket (3) close to the transformer (2) among the plurality of brackets (3) is an inclined surface, and the wire clamping plate (4) arranged on the inclined surface is in an inclined state.

3. The protective structure under the cable car of a rail vehicle according to claim 1, characterized in that: Among the plurality of brackets (3), the bracket (3) close to the side wall of the urban rail vehicle (1) is longer than the other plurality of brackets (3).

4. The protective structure under the cable car of a rail vehicle according to claim 1, characterized in that: The distance between the blocking plate (7) and the opening of the cavity (6) is greater than 10 mm.

5. The protective structure under the cable car of a rail vehicle according to claim 1, characterized in that: The contact surface between the side wall of the blocking plate (7) and the inner wall of the cavity (6) and the contact surface between the through hole on the blocking plate (7) and the cable (5) are both filled with rubber.

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