CN-224204463-U - Lightning protection equipment for railway contact net

Abstract

The utility model discloses lightning protection equipment for a railway contact network, and relates to the technical field of railways. Including support column and support column outer wall installation's fixed frame, the arrester is installed on the fixed frame top, protection component sets up on the arrester top, protection component is used for protecting the interface department of cable and arrester, through the interface department that sets up protector of cable and arrester, can effectively reduce the damage that leads to because of wearing and tearing, buckle or exogenic action, thereby avoid the lead wire of cable interface department to lead to fracture or pine to take off because of reasons such as external force pulls or external impact easily, ensure the steadiness and the electrical property that lead wire and arrester are connected, ensure that the connection between arrester and the cable is firm, thereby prolong the life of arrester and cable, the application of this kind of protector not only can improve the reliability and the security of railway contact net system, ensure the normal operating of train.

Inventors

• WEN DONG
• YU ANTAO
• Mei chun
• LV GUOMIN
• LIU YUAN
• DAI XUEFENG
• ZHOU FEI
• PAN HAO

Assignees

• 中国铁路济南局集团有限公司济南供电段

Dates

Publication Date

20260505

Application Date

20250417

Claims (6)

1. 1. The lightning protection device for the railway contact net comprises a support column and a fixed frame arranged on the outer wall of the support column, wherein a lightning arrester is arranged at the top end of the fixed frame; The protection component comprises a fixed cylinder, the fixed cylinder is arranged at the top end of the lightning arrester, a sliding hole is formed in the inner wall of the fixed cylinder, a mounting block is slidably connected to the inner wall of the sliding hole, a sliding cylinder is fixedly connected to the outer wall of one side of the mounting block, the outer wall of the sliding cylinder is slidably connected with the inner wall of the fixed cylinder, a fixed plate is arranged at the top end of the sliding cylinder, a through hole is formed in the outer wall of the fixed plate, a mounting groove is formed in the top end of the fixed cylinder, a rubber ring is arranged in the mounting groove, and a squeezing block is slidably connected to the inner wall of the mounting groove.
2. 2. The lightning protection device for the railway contact network according to claim 1, wherein the top end of the extrusion block is fixedly connected with a mounting sleeve, and the inner wall of the mounting sleeve is rotationally connected with the outer wall of the sliding cylinder.
3. 3. The lightning protection device for the railway contact network according to claim 2, wherein the top end of the inner wall of the installation sleeve is provided with a slope, and the slope is matched with the outer wall of the extrusion block.
4. 4. A lightning protection device for a railway contact network according to claim 3, wherein the inner wall of the mounting sleeve is provided with a thread groove which is meshed with threads arranged on the outer wall of the sliding cylinder.
5. 5. The lightning protection device for the railway contact network, as set forth in claim 1, is characterized in that a cable is connected to the inner wall of the sliding cylinder in a sliding manner, and one end of the cable is connected with the top end of the lightning arrester.
6. 6. A lightning protection device for a railway contact network as set forth in claim 5, wherein the other end of the cable is connected to the grounding means through a central hole in the top end of the mounting sleeve.

Description

Lightning protection equipment for railway contact net Technical Field The utility model relates to the technical field of railways, in particular to lightning protection equipment for a railway contact net. Background In the daily operation process of a railway system, the overhead contact system is taken as an important component of a power supply system and bears the task of providing stable power for a train, but under severe weather conditions, the overhead contact system and related equipment thereof can face a huge challenge, the conventional railway overhead contact system generally has the problem of insufficient protective measures, particularly at an interface, and due to the structural exposure characteristic, the overhead contact system can take a ride for thunder and lightning, so that the condition of cable damage frequently occurs, and the normal operation of the railway system is affected. However, under the lightning protection scene of the railway contact net, the lightning protection device of the railway contact net is generally lack of a protection device at the interface in the use process, so that the lead wire at the cable interface is easy to break or loose due to external force pulling or external impact and the like in practical application, the lightning arrester is enabled to lose electrical connection, and then the lightning arrester cannot normally operate, the damage not only reduces the service life of the device, but also increases the maintenance cost and the maintenance difficulty, finally leads to the functional failure of the lightning arrester, and cannot effectively prevent lightning damage to the railway contact net, thereby bringing serious hidden danger to railway operation safety and influencing the safety and reliability of the whole system. Disclosure of utility model The utility model aims to provide lightning protection equipment for a railway contact network, which aims to solve the problems in the background technology. The lightning protection device for the railway contact network comprises a support column and a fixed frame arranged on the outer wall of the support column, wherein a lightning arrester is arranged at the top end of the fixed frame, a protection component is arranged at the top end of the lightning arrester, and the protection component is used for protecting an interface of a cable and the lightning arrester; The protection component comprises a fixed cylinder, the fixed cylinder is arranged at the top end of the lightning arrester, a sliding hole is formed in the inner wall of the fixed cylinder, a mounting block is slidably connected to the inner wall of the sliding hole, a sliding cylinder is fixedly connected to the outer wall of one side of the mounting block, the outer wall of the sliding cylinder is slidably connected with the inner wall of the fixed cylinder, a fixing plate is arranged at the top end of the sliding cylinder, a through hole is formed in the outer wall of the fixing plate, a mounting groove is formed in the top end of the fixed cylinder, a rubber ring is mounted in the mounting groove, and an extrusion block is slidably connected to the inner wall of the mounting groove. As a specific scheme of the technical scheme of the application, the top end of the extrusion block is fixedly connected with a mounting sleeve, and the inner wall of the mounting sleeve is rotationally connected with the outer wall of the sliding cylinder. As a specific scheme of the technical scheme of the application, the top end of the inner wall of the mounting sleeve is provided with a slope, and the slope is matched with the outer wall of the extrusion block. As a specific scheme of the technical scheme of the application, the inner wall of the installation sleeve is provided with a thread groove which is meshed with threads arranged on the outer wall of the sliding cylinder. As a specific scheme of the technical scheme of the application, the inner wall of the sliding cylinder is connected with a cable in a sliding manner, and one end of the cable is connected with the top end of the lightning arrester. As a specific scheme of the technical scheme of the application, the other end of the cable passes through the central hole at the top end of the mounting sleeve and is connected with the grounding device. Compared with the prior art, the utility model has the beneficial effects that: This lightning protection device for railway contact net sets up protector through the interface department of cable and arrester, can effectively reduce the damage that leads to because of wearing and tearing, buckling or exogenic action, thereby avoid the lead wire of cable interface department to lead to fracture or pine loose because of reasons such as external force is pulled or outside striking easily, ensure the steadiness and the electric property that lead wire and arrester are connected, ensure the connection between arrester and the cable firm, thereb