CN216252130U - A lightning protection system for railway electrical equipment - Google Patents

Abstract

The utility model discloses a lightning protection system for railway electrical equipment, comprising a lightning protection safety device. A plurality of groups of connection ports are evenly arranged at the top of the lightning protection safety device. The device is connected with the positioning slot, and the positioning slot is arranged at the top of the protective shell. The utility model is a lightning protection system for railway electrical equipment. The staff rotates the plug board, and when the arc plate on one side of the plug board rotates to the inner side of the arc groove, Pull the plug board until the plug board is no longer connected with the fixed block. At this time, the fixed spring is not restricted, and the elastic deformation is restored. The fixed spring pulls the limit rods on both sides to rotate, and the rotation of the limit rod drives the fixed block to move. The inner side of the rectangular slot is moved to be perpendicular to the bottom plate, and at the same time, the bottom plate is moved to the outside of the protective shell under the restriction of the fixed block, so as to facilitate the maintenance of the lightning protection device by the staff, reduce the safety hazard during maintenance, and improve the convenience of the installation.

Description

A lightning protection system for railway electrical equipment

technical field

The utility model relates to the technical field of lightning protection systems, in particular to a lightning protection system for railway electrical equipment.

Background technique

In the railway lightning protection system, when lightning strikes occur, the lightning discharge induces lightning electromagnetic pulse overvoltage and overcurrent, and the current is discharged through the station power system, communication signal transmission channel, grounding system and the protection system for direct lightning strikes in buildings. The power supply system, antenna feeder system, signal acquisition and transmission system, program-controlled switching system, computer network system, computer room grounding system, etc. are reliably and effectively protected, and the interception, shunt, equalization, grounding, wiring, layout, etc. For the comprehensive protection of different levels, the electrical equipment installed outdoors should be equipped with a lightning protection device at the entrance of the cable terminal. There are many kinds of existing lightning protection devices, but there are still shortcomings that need to be improved.

In the prior art, on the one hand, the lightning protection device is connected to the cable terminal, and the railway electrical equipment is usually placed outdoors. The outdoor environment is complex, and weather changes and external force factors can easily cause the cable to fall off, and the lightning protection device cannot be used normally. The lightning protection device is usually placed inside the protective shell, and it is inconvenient for the staff to operate it when overhauling it. Therefore, a lightning protection system for railway electrical equipment is required.

SUMMARY OF THE INVENTION

The purpose of this utility model is to provide a lightning protection system for railway electrical equipment to solve the problems raised in the above background technology.

In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a lightning protection system for railway electrical equipment, comprising a lightning protection safety device, the top of the lightning protection safety device is evenly provided with multiple groups of connection ports, and the tops of the multiple groups of the connection ports are all A cable is provided, and the other side of the cable is connected with the positioning slot through a fixing device, the positioning slot is arranged at the top of the protective shell, and the bottom end of the lightning protection device is movable with the bottom end of the inner side of the protective shell through a transmission device connection; the fixing device includes a positioning ring, a positioning ring is sleeved on the outer side of the cable, a positioning block is symmetrically and fixedly connected to the outer side of the positioning ring, and both sides of the positioning block are connected to one side of the bottom end of the positioning plate through a positioning spring Fixed connection, limit springs are symmetrically arranged on both sides of the positioning ring, and the limit block is fixedly connected to the other side of the limit spring.

As a preferred technical solution of the present invention, the transmission device includes a bottom plate, the bottom end of the lightning protection device is provided with a bottom plate, and the other side of the bottom plate is symmetrically provided with two sets of limit rods. The middle part of the position rod is fixedly connected by a fixed spring, and the other side of the two sets of limit rods is provided with a fixed block, and the fixed block is connected with the bottom plate through a plug-in board by engaging.

As a preferred technical solution of the present invention, the inner size of the bottom end of the positioning ring is equal to the size of the cable.

As a preferred technical solution of the present invention, the positioning plate is movably connected with the positioning block through a connecting rod.

As a preferred technical solution of the present invention, one end of the plug board is an arc-shaped plate, and one side of the fixing block is provided with an arc-shaped groove, and the size of the arc-shaped groove is larger than that of the arc-shaped plate.

As a preferred technical solution of the present invention, the inner side of the protective shell is provided with a rectangular groove, and the size of the rectangular groove is equal to that of the outer side of the fixing block.

1. Compared with the prior art, the beneficial effects of the present utility model are: the utility model is a lightning protection system for railway electrical equipment. The inner size is equal to the size of the cable, so that the cable is embedded in the inner side of the positioning ring to seal and fix the device, and then the staff drives the positioning ring to move up, so that the positioning ring is connected with the positioning groove, and the positioning ring drives the connection port to move, positioning The block drives the positioning plate to move until the positioning plate is inserted into the inner side of the positioning groove under the restriction of the positioning spring. Since the positioning plate is movably connected with the positioning block through the connecting rod, the positioning spring squeezes the positioning plates on both sides, and the positioning plate further fits the positioning groove. The positioning ring and the positioning groove are used to limit the position. At this time, the limit blocks on both sides of the positioning ring are in contact with the inner side of the positioning groove, and the limit block further squeezes the limit block under the limit of the limit spring, which further limits the position of the positioning ring and the positioning groove. Thereby, the cables and the protective shell are fixed multiple times, so that the cables are prevented from being loosened and separated, and the practicability of the device is improved.

2. Compared with the prior art, the beneficial effects of the present utility model are as follows: the utility model is a lightning protection system for railway electrical equipment. The staff rotates the plug board, and one end of the plug board is set as an arc-shaped board. There is an arc-shaped slot on the side, and the size of the arc-shaped slot is larger than that of the arc-shaped plate. When the arc-shaped plate on one side of the plug-in board rotates to the inside of the arc-shaped groove, pull the plug-in board until the plug-in board is no longer locked with the fixed block. At this time, the fixed spring is not restricted, and the elastic deformation is restored. The fixed spring pulls the limit rods on both sides to rotate, and the rotation of the limit rods drives the fixed block to move. A rectangular groove is provided inside the protective shell. The size of the rectangular groove is related to the fixed size. The dimensions of the outside of the block are equal, so that the fixed block is moved inside the rectangular slot to be perpendicular to the bottom plate, and the bottom plate is moved to the outside of the protective shell under the restriction of the fixed block, so as to facilitate the maintenance of the lightning protection device by the staff and reduce the safety hazard during maintenance. Improve device convenience.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

2 is a schematic diagram of the connection structure of the fixing device of the present invention;

FIG. 3 is a schematic diagram of the connection structure of the transmission device of the present invention.

In the figure: 1. Lightning protection device; 2. Protective shell; 3. Positioning slot; 4. Connection port; 5. Cable; 6. Positioning ring; 7. Positioning block; 8. Positioning spring; 9. Positioning plate; 10, limit spring; 11, limit block; 12, bottom plate; 13, limit rod; 14, fixed block; 15, fixed spring; 16, insert plate.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical scheme of a lightning protection system for railway electrical equipment, including a lightning protection device 1, and the top of the lightning protection device 1 is evenly provided with multiple groups of connection ports 4, and multiple groups of connection ports 4 The top end is provided with a cable 5, the other side of the cable 5 is connected with the positioning groove 3 through a fixing device, the positioning groove 3 is arranged on the top of the protective shell 2, and the bottom end of the lightning protection device 1 is connected to the inner side of the protective shell 2 through a transmission device. Bottom active connection.

Please refer to FIG. 2 , the utility model provides a lightning protection system for railway electrical equipment. The fixing device includes a positioning ring 6 . The outer side of the cable 5 is sleeved with a positioning ring 6 . The outer side of the positioning ring 6 is symmetrically and fixedly connected with a positioning block 7. Both sides of the positioning block 7 are fixedly connected with the bottom end side of the positioning plate 9 through the positioning spring 8. The positioning plate 9 is movably connected with the positioning block 7 through the connecting rod. The positioning ring 6 Limiting springs 10 are symmetrically arranged on both sides, and a limiting block 11 is fixedly connected to the other side of the limiting springs 10 .

Please refer to FIG. 3 , the utility model provides a lightning protection system for railway electrical equipment. The transmission device includes a base plate 12 , a base plate 12 is provided at the bottom end of the lightning protection protector 1 , and two sets of limit rods are symmetrically arranged on the other side of the base plate 12 13. The middle parts of the two sets of limit rods 13 are fixedly connected by a fixed spring 15, the other side of the two sets of limit rods 13 is provided with a fixed block 14, and the inner side of the protective shell 2 is provided with a rectangular groove, and the size of the rectangular groove is equal to that of the outer side of the fixed block 14. , the fixing block 14 is connected with the bottom plate 12 through the plug-in board 16, one end of the plug-in board 16 is set as an arc-shaped plate, and one side of the fixing block 14 is provided with an arc-shaped groove, and the size of the arc-shaped groove is larger than that of the arc-shaped board.

When used specifically, the utility model is a lightning protection system for railway electrical equipment. After the staff connects the terminal of the cable 5 with the lightning protection device 1, the staff sets the position on the side of the cable 5 close to the protective shell 2. Ring 6, the inner size of the bottom end of the positioning ring 6 is equal to the size of the cable 5, so that the cable 5 is embedded in the inner side of the positioning ring 6, and the device is sealed and fixed, and then the staff drives the positioning ring 6 to move up, so that the positioning ring 6 and the positioning ring The slot 3 is snap-connected, and at the same time, the positioning ring 6 drives the connection port 4 to move, and the positioning block 7 drives the positioning plate 9 to move until the positioning plate 9 is inserted into the inner side of the positioning slot 3 under the restriction of the positioning spring 8. The block 7 is movably connected, so that the positioning spring 8 squeezes the positioning plates 9 on both sides, and the positioning plates 9 further fit the positioning groove 3 to limit the position of the positioning ring 6 and the positioning groove 3. At this time, the limit blocks 11 on both sides of the positioning ring 6 In contact with the inner side of the positioning groove 3, the limit block 11 further squeezes the limit block 11 under the restriction of the limit spring 10, and further restricts the position of the positioning ring 6 and the positioning groove 3, thereby multiple fixing the cable 5 and the protective shell 2. , to avoid loosening of the cable 5.

When the lightning protection device 1 needs to be repaired, the staff rotates the plug board 16, and one end of the plug board 16 is set as an arc-shaped plate, and one side of the fixed block 14 is provided with an arc-shaped slot, and the size of the arc-shaped slot is larger than that of the arc-shaped plate. When the arc-shaped plate on one side of the plug-in board 16 is rotated to the inside of the arc-shaped groove, pull the plug-in board 16 until the plug-in board 16 is no longer connected with the fixing block 14. At this time, the fixed spring 15 is not restricted and elastically deformed Recovery, the fixed spring 15 pulls the limit rods 13 on both sides to rotate, and the limit rod 13 rotates to drive the fixed block 14 to move. A rectangular groove is provided on the inner side of the protective shell 2, and the size of the rectangular groove is equal to the outer size of the fixed block 14, so that the fixed block 14 Move to the inside of the rectangular slot to be perpendicular to the bottom plate 12 , and at the same time the bottom plate 12 moves to the outside of the protective shell 2 under the restriction of the fixing block 14 , so as to facilitate the maintenance of the lightning protection device 1 by the staff.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated The device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, for example, it may be a fixed connection, a detachable connection, or an integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection, or a It can be indirectly connected through an intermediate medium, it can be the internal communication between two elements or the interaction relationship between the two elements, unless otherwise clearly defined, for those of ordinary skill in the art, the above terms can be understood according to specific situations in this document. The specific meaning in the utility model.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A lightning protection system for railway electrical equipment, comprising a lightning protection safety device (1), characterized in that: the top of the lightning protection safety device (1) is evenly provided with multiple groups of connection ports (4), and multiple groups of the connection ports are provided. (4) A cable (5) is provided at the top end, and the other side of the cable (5) is connected with the positioning groove (3) by means of a fixing device, and the positioning groove (3) is arranged in the protective shell (2) At the top, the bottom end of the lightning protection device (1) is movably connected to the inner bottom end of the protective shell (2) through a transmission device; the fixing device includes a positioning ring (6), and the outer side of the cable (5) is sleeved with a A positioning ring (6), a positioning block (7) is symmetrically and fixedly connected to the outside of the positioning ring (6), and both sides of the positioning block (7) are connected to one side of the bottom end of the positioning plate (9) through a positioning spring (8) For fixed connection, limit springs (10) are symmetrically arranged on both sides of the positioning ring (6), and a limit block (11) is fixedly connected to the other side of the limit spring (10). 2. A lightning protection system for railway electrical equipment according to claim 1, characterized in that: the transmission device comprises a bottom plate (12), and the bottom end of the lightning protection device (1) is provided with a bottom plate (12), The other side of the bottom plate (12) is symmetrically provided with two sets of limit rods (13), the middle parts of the two sets of limit rods (13) are fixedly connected by a fixing spring (15), and the two sets of limit rods (13) ) is provided with a fixing block (14) on the other side, and the fixing block (14) is connected with the bottom plate (12) by means of a plug-in board (16). 3 . The lightning protection system for railway electrical equipment according to claim 1 , wherein the size of the inner side of the bottom end of the positioning ring ( 6 ) is equal to the size of the cable ( 5 ). 4 . 4 . The lightning protection system for railway electrical equipment according to claim 1 , wherein the positioning plate ( 9 ) is movably connected to the positioning block ( 7 ) through a connecting rod. 5 . 5 . The lightning protection system for railway electrical equipment according to claim 2 , wherein one end of the plug board ( 16 ) is set as an arc-shaped board, and one side of the fixing block ( 14 ) is provided with an arc-shaped board. 6 . The size of the arc-shaped groove is larger than the size of the arc-shaped plate. 6 . The lightning protection system for railway electrical equipment according to claim 2 , wherein a rectangular slot is provided inside the protective shell ( 2 ), and the size of the rectangular slot is equal to that of the outside of the fixing block ( 14 ). 7 .

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