Intelligent overhead contact line grounding device

By introducing a limit system and sound and light prompts into the grounding device, standardizing the operating logic of the grounding wire, and detecting the contact resistance, the problems of increased contact resistance and irregular operation of the grounding wire device after long-term use are solved, and a safe and reliable grounding effect is achieved.

CN116885517BActive Publication Date: 2025-10-17SCI & TECH RES INST OF CHINA RAILWAY WUHAN BUREAU GRP CO LTD +2
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202310911827.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-25
Publication Date
2025-10-17
Estimated Expiration
2043-07-25

AI Technical Summary

Technical Problem

The contact resistance of traditional contact network grounding wire devices increases after long-term exposure, resulting in poor grounding effect, and improper operation can easily cause safety risks.

Method used

A limit system, audio signals and light signals are used to standardize the operation logic of hooking and removing the grounding wire, and the grounding reliability is ensured by detecting the contact resistance. The electromagnet and gear nut device are used to limit incorrect operation, and the buzzer and indicator light prompt the correct operation.

Benefits of technology

The operating procedures of grounding wires are standardized to ensure good grounding effects, reduce safety risks, and improve the safety and reliability of grounding wires.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116885517B_ABST
    Figure CN116885517B_ABST
Patent Text Reader

Abstract

The application provides an intelligent overhead line system grounding device, and relates to the technical field of overhead line system maintenance tools for electrified railways.The device comprises a master and a slave of a grounding system.The master of the grounding system comprises a limiting system, a gear mounting slot connected to the limiting system, a grounding shoe, a contact resistance screw and the like.The slave of the grounding system comprises a limiting system, a grounding hook, a slave contact resistance screw and the like.The master shell and the slave shell are internally provided with a battery, a mainboard, an electromagnet, a buzzer, an indicator lamp and an antenna mounting piece and the like.Through the master and the slave of the grounding system, the operation logic of hanging and removing the grounding wire is standardized, the contact resistance is detected, and the device plays a prompting role when the operation is in violation of the rules.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric railway catenary maintenance tools, in particular to an intelligent contact grounding device capable of standardizing the operation logic of grounding wire hanging and removing and detecting contact resistance. BACKGROUND

[0002] The grounding wire is a necessary safety measure for electric railway catenary power-off operation. The traditional catenary grounding wire device mainly has the following problems:

[0003] 1) The catenary line and the rail are exposed to the natural environment for a long time, which may cause oxidation and attachment of foreign matters, etc. The contact resistance between the grounding wire and the catenary line and the rail may be large, thereby affecting the grounding effect and causing a security risk of poor grounding state.

[0004] 2) The grounding wire operator does not hang and remove the grounding wire according to the specified procedure, which has a large security risk and may cause a serious electric shock accident of the operator. SUMMARY

[0005] The purpose of the present application is to provide an intelligent catenary grounding device, which guarantees the operation logic of grounding wire hanging and removing through a limiting system, an acoustic signal and a light signal and guarantees the reliability of grounding through detection of contact resistance.

[0006] To solve the above technical problems, the technical solution adopted by the present application is as follows:

[0007] The embodiment of the present application provides an intelligent catenary grounding device for standardizing the operation logic of grounding wire hanging and removing and detecting contact resistance, which includes a master and a slave of a grounding system.

[0008] The grounding system host includes a limiting system, a gear mounting slot connected to the limiting system, a grounding shoe, and a host contact resistance screw; the host limiting system includes a host shell, a gear nut device, a host electromagnet, and a host lock rod connected to the host electromagnet; the gear nut device is connected to the grounding shoe; the grounding shoe is used to fix the steel rail; the host electromagnet is connected to the host lock rod and is used to control the extension and retraction of the host lock rod; the host lock rod corresponds to the groove of the gear nut device and is used to limit the movement of the gear nut; the gear mounting slot is in the shape of a "T-shaped mushroom" and is externally provided with a groove cover plate for protecting the entire limiting system; the groove cover plate is provided with an emergency unlocking slide buckle connected to the host lock rod, and the unlocking slide buckle can retract the lock rod; the host contact resistance screw is located at the bottom of the grounding shoe and is connected to the measurement module formed inside the grounding system host to measure the contact resistance of the host; when the measured contact resistance value meets the set requirements, the host indicator light displays a light signal indicating that the contact resistance meets the requirements; the host shell is connected beside the gear mounting slot and is composed of a host A shell and a host B shell to form a closed space for protecting the equipment in the host shell; the equipment in the host shell includes a host battery, a host mainboard, a host buzzer, a host indicator light, a host antenna mounting piece, a host electromagnet, a host lock rod, and the like; the host A shell is externally provided with a sticker for indicating functions; the host battery is installed inside the host shell near the end close to the grounding shoe and is responsible for supplying power to the host system; the host mainboard is installed on the host battery in the host shell and controls the host buzzer and the host indicator light; the host buzzer is installed at the bottom of the host shell; the host indicator light is installed outside the host B shell; the host buzzer and the host indicator light are connected to the host mainboard, and according to the sound signal emitted by the host buzzer and the light signal displayed by the host indicator light, the operation logic of the grounding wire hanging and removing is standardized, and the host buzzer and the host indicator light play a prompting role when the operation is violated; the host connecting antenna mounting piece is installed outside the host A shell and is used for LORA communication.

[0009] The intelligent overhead contact system grounding device provided in the application comprises a main machine, a slave machine and a contact resistance screw, wherein the main machine comprises a main machine limiting system, a main machine grounding hook and a main machine contact resistance screw; the main machine limiting system comprises a main machine shell, a main machine electromagnet, a main machine rod lock, a main machine reset pin and a main machine blocking rod; the main machine electromagnet is connected with the main machine rod lock and is used for controlling the extension and retraction of the main machine rod lock; one end of the main machine rod lock is connected with the main machine electromagnet, and the other end thereof extends outward and is used for controlling the action of the main machine blocking rod; one end of the main machine reset pin is connected with the main machine shell through a screw, and the other end thereof supports the main machine blocking rod outward; the main machine grounding hook is a conductive device for grounding protection, is connected with a grounding clamp and the blocking rod; the grounding clamp is fixed in the U-shaped main machine grounding hook and is used for fixing a contact cable; the blocking rod is located at the U-shaped opening end and is used for controlling whether to be hung; the main machine contact resistance screw is located inside the main machine grounding hook, is used for fixing the grounding clamp and is connected with a measuring module in the main machine to measure the contact resistance; when the measured contact resistance value reaches a set requirement, a main machine indicating lamp displays a light signal that the contact resistance is up to the standard; the main machine shell is composed of a main machine A shell and a main machine B shell, forms a closed space and is used for protecting the equipment in the main machine shell; the main machine shell is installed beside the main machine grounding hook; the equipment in the main machine shell comprises a main machine battery, a main machine mainboard, a main machine buzzer, a main machine indicating lamp, a main machine antenna mounting piece, a main machine electromagnet, a main machine rod lock and the like; the main machine A shell is externally attached with a main machine sticker and is marked with GCT-1000D.

[0010] The slave machine comprises a slave machine limiting system, a slave machine grounding hook and a slave machine contact resistance screw; the slave machine limiting system comprises a slave machine shell, a slave machine electromagnet, a slave machine rod lock, a slave machine reset pin and a slave machine blocking rod; the slave machine electromagnet is connected with the slave machine rod lock and is used for controlling the extension and retraction of the slave machine rod lock; one end of the slave machine rod lock is connected with the slave machine electromagnet, and the other end thereof extends outward and is used for controlling the action of the slave machine blocking rod; one end of the slave machine reset pin is connected with the slave machine shell through a screw, and the other end thereof supports the slave machine blocking rod outward; the slave machine grounding hook is a conductive device for grounding protection, is connected with a grounding clamp and the blocking rod; the grounding clamp is fixed in the U-shaped slave machine grounding hook and is used for fixing a contact cable; the blocking rod is located at the U-shaped opening end and is used for controlling whether to be hung; the slave machine contact resistance screw is located inside the slave machine grounding hook, is used for fixing the grounding clamp and is connected with a measuring module in the slave machine to measure the contact resistance; when the measured contact resistance value reaches a set requirement, a slave machine indicating lamp displays a light signal that the contact resistance is up to the standard; the slave machine shell is composed of a slave machine A shell and a slave machine B shell, forms a closed space and is used for protecting the equipment in the slave machine shell; the slave machine shell is installed beside the slave machine grounding hook; the equipment in the slave machine shell comprises a slave machine battery, a slave machine mainboard, a slave machine buzzer, a slave machine indicating lamp, a slave machine antenna mounting piece, a slave machine electromagnet, a slave machine rod lock and the like; the slave machine A shell is externally attached with a slave machine sticker and is marked with GCT-1000D.

[0011] The intelligent overhead contact system grounding device provided in the application comprises a master machine, a slave machine and a contact resistance screw.

[0012] In some embodiments of the application, the master machine of the grounding system comprises a master machine limiting system, a gear installation slot connected to the master machine limiting system, a grounding shoe and a master machine contact resistance screw.

[0013] In some embodiments of the application, the master machine limiting system comprises a master machine shell, a gear nut device, a master machine electromagnet and a master machine lock rod connected to the master machine electromagnet.

[0014] In some embodiments of the application, an emergency unlocking slide buckle is arranged on the gear installation slot cover plate and connected to the master machine lock rod, and the unlocking slide buckle can retract the master machine lock rod.

[0015] In some embodiments of the application, the master machine contact resistance screw is connected to a measuring module inside the master machine to measure the contact resistance of the master machine; when the measured contact resistance value reaches the set requirement, the master machine indicator light displays a light signal indicating that the contact resistance meets the standard.

[0016] In some embodiments of the application, the devices inside the master machine shell include a master machine battery, a master machine mainboard, a master machine buzzer, a master machine indicator light, a master machine antenna installation piece and the master machine electromagnet, the master machine lock rod and the like.

[0017] In some embodiments of the application, the master machine buzzer and the master machine indicator light are connected to the master machine mainboard, and the operation logic of the grounding wire hanging and removal is standardized according to the sound signal emitted by the master machine buzzer and the light signal displayed by the master machine indicator light, and the master machine buzzer and the master machine indicator light also play a prompting role when the operation is in violation of the rules.

[0018] In some embodiments of the application, the slave machine of the grounding system comprises a slave machine limiting system, a grounding hook and a slave machine contact resistance screw.

[0019] In some embodiments of the application, the slave machine limiting system comprises a slave machine shell, a slave machine electromagnet, a slave machine lock rod, a slave machine reset nail and a slave machine stop rod.

[0020] In some embodiments of the present application, the slave machine contacts resistance screw, and the measurement module formed by the internal components of the slave machine, measure the contact resistance of the slave machine; when the measured contact resistance value meets the set requirements, the slave machine indicator light displays the light signal of the contact resistance meeting the requirements.

[0021] In some embodiments of the present application, the equipment in the slave machine shell includes a slave machine battery, a slave machine mainboard, a slave machine buzzer, a slave machine indicator light, a slave machine antenna mounting piece, and the slave machine electromagnet, the slave machine lock rod, etc.

[0022] In some embodiments of the present application, the slave machine buzzer and the slave machine indicator light are connected with the slave machine mainboard, and the operation logic of hanging and removing the grounding wire is standardized according to the sound signal emitted by the slave machine buzzer and the light signal displayed by the slave machine indicator light, and the operation is prompted when the operation is violated.

[0023] Compared with the prior art, the embodiments of the present application have at least the following advantages or beneficial effects:

[0024] The intelligent contact network grounding device provided by the present application standardizes the operation logic of hanging and removing the grounding wire by adding a limiting system and an audible and visual warning system to the master and slave machines of the grounding system, limits the wrong operation of the operator, and guides and prompts the correct grounding operation logic.

[0025] The intelligent contact network grounding device provided by the present application measures the contact resistance of the master and slave machines by adding a contact resistance screw to the master and slave machines of the grounding system and a measurement module formed by the internal components of the master and slave machines, and prompts whether the contact resistance meets the requirements through the indicator light, thereby ensuring the effectiveness of grounding. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0027] Figure 1 The figure is a schematic diagram of the master machine of the grounding system of the embodiments of the present application;

[0028] Figure 2 The figure is an exploded view schematic diagram of the master machine of the grounding system of the embodiments of the present application;

[0029] Figure 3 The figure is a schematic diagram of the slave machine of the grounding system of the embodiments of the present application;

[0030] Figure 4The figure shows the explosion diagram of the slave machine of the grounding system of the embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0032] Therefore, the detailed description of the embodiments of the present application provided below in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0033] EMBODIMENT

[0034] The embodiment provides an intelligent overhead contact system grounding device, please refer to Figure 2 , Figure 2 The figure shows the explosion diagram of the master machine of the grounding system provided by the embodiment, as shown in the figure, the main part thereof comprises a limiting system, a gear mounting slot connected to the limiting system, a grounding shoe, and a master machine contact resistance screw. The limiting system is composed of a master machine shell, a gear nut device, a master machine electromagnet, and a master machine lock rod connected to the master machine electromagnet. Specifically, the gear nut device is connected to the grounding shoe, the grounding shoe is used for fixing the steel rail, the master machine electromagnet is fixed to a section of the master machine hexagonal bearing, the master machine electromagnet is also connected to the master machine lock rod, and the master machine lock rod corresponds to the groove of the gear nut device. The gear mounting slot presents a "T-shaped mushroom shape", an external groove cover plate is additionally installed, the groove cover plate is connected to the mounting slot through a screw, the groove cover plate is provided with an emergency unlocking slide buckle connected to the master machine lock rod, and the unlocking slide buckle can retract the lock rod; the master machine contact resistance screw is located at the bottom of the grounding shoe and constitutes a measurement module with the inside of the master machine; when the measured contact resistance value reaches the set requirement, the master machine indicator light displays a light signal indicating that the contact resistance meets the requirement. The master machine brass connecting piece is arranged above the measured contact resistance and is connected to the grounding shoe.

[0035] The host shell consists of a host A shell and a host B shell, which are fixed with screws to form a closed space for protecting the equipment inside the host shell; the host shell is connected next to the gear mounting slot; the equipment inside the host shell includes a host battery, a host mainboard, a host buzzer, a host indicator light, a host antenna mounting part, a host electromagnet, a host locking rod, etc.; a sticker is affixed to the outside of the host A shell, the host battery is installed inside the host shell near the end of the grounding shoe, and the host mainboard is installed in the host shell above the host battery; the host buzzer is installed at the bottom inside the host shell; the host indicator light is installed on the outside of the host B shell, and a host touch switch is provided next to it; the host buzzer and the host indicator light are connected to the host mainboard, and the operating logic of connecting and removing the grounding wire is standardized according to the sound signal emitted by the host buzzer and the light signal displayed by the host indicator light, and serves as a reminder in case of illegal operation; the host connection antenna mounting part is installed on the outside of the host A shell.

[0036] In addition, please refer to Figure 4 , Figure 4 The main display is the slave explosion diagram. As shown in the figure, the grounding system slave includes a slave limit system, a grounding hook and a slave contact resistance screw; the slave limit system includes a slave housing, a slave electromagnet, a slave rod lock, a slave reset nail, a slave stop rod and a slave pin; the slave electromagnet is connected to the slave rod lock to control the telescopic movement of the slave rod lock; one end of the slave rod lock is connected to the slave electromagnet, and the other end extends outward; one end of the slave reset nail is connected to the slave housing through a screw, and the other end supports the slave stop rod outside, and the slave stop The rod is fixed on the slave pin, and the slave tension spring is used to fix the slave pin; the grounding hook is a conductive device for grounding protection, connecting the grounding clip and the retaining rod; the grounding clip is fixed inside the U-shaped grounding hook and is used to fix the contact cable; the retaining rod is located at the U-shaped end, and the slave contact resistance screw is located on the inside of the grounding hook and is combined with the measurement module inside the grounding system slave to measure the slave contact resistance; when the measured contact resistance value reaches the set requirement, the slave indicator light displays a light signal indicating that the contact resistance meets the standard.

[0037] The slave housing consists of a slave A housing and a slave B housing, forming an enclosed space to protect the equipment within. The slave housing is mounted next to the grounding hook. The equipment within the slave housing includes the slave battery, slave motherboard, slave buzzer, slave indicator light, slave antenna mounting kit, slave electromagnet, and slave locking lever. A slave sticker labeled GCT-1000D is affixed to the outside of slave A housing. The slave battery is mounted in the upper portion of the slave housing. The slave motherboard, which fits snugly within slave A housing, controls the slave buzzer and indicator light. The slave buzzer is embedded in the center of slave A housing, while the slave indicator light is located above the exterior of slave B housing. The slave buzzer and indicator light are connected to the slave motherboard. The slave antenna mounting kit is mounted on the outside of slave B housing. Two slave fixing screws connect the slave housing to the slave grounding hook.

[0038] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. An intelligent contact network grounding device, used to standardize the operation logic of hooking and removing the grounding wire and detect contact resistance, characterized by the grounding system master and grounding system slave: The grounding system host includes a host limit system, a gear mounting slot connected to the host limit system, a grounding shoe, and a host contact resistance screw; the host limit system includes a host housing, a gear nut device, a host electromagnet, and a host locking rod connected to the host electromagnet; the gear nut device is connected to the grounding shoe; the grounding shoe is used to fix the rail; the host electromagnet is connected to the host locking rod to control the telescopic movement of the host locking rod; the host locking rod corresponds to the groove of the gear nut device to limit the movement of the gear nut; the gear mounting slot is T-shaped and has a slot cover plate installed on the outside to protect the entire limit system; an emergency unlocking slider is set on the slot cover plate, which is connected to the host locking rod, and the unlocking slider retracts the host locking rod; the host contact resistance screw is located at the bottom of the grounding shoe and forms a measurement module inside the grounding system host to measure the host contact resistance. When the measured contact resistance value meets the set requirement, the host indicator light displays a light signal indicating that the contact resistance meets the standard; The grounding system slave includes a slave limiting system, a grounding hook and a slave contact resistance screw; the slave limiting system includes a slave housing, a slave electromagnet, a slave rod lock, a slave reset pin and a slave stop rod; the slave electromagnet is connected to the slave rod lock to control the telescopic movement of the slave rod lock; one end of the slave rod lock is connected to the slave electromagnet, and the other end extends outward to control the movement of the slave stop rod; one end of the slave reset pin is connected to the slave housing through a screw, and the other end supports the slave stop rod externally.

2. The intelligent catenary grounding device according to claim 1, wherein the main housing is composed of a main housing A and a main housing B, forming a closed space for protecting the equipment inside the main housing; the main housing is connected next to the gear mounting slot; the equipment inside the main housing includes a main battery, a main motherboard, a main buzzer, a main indicator light, a main antenna mounting member, the main electromagnet, and the main locking rod; a sticker is affixed to the outside of the main housing A for function indication; the main battery is installed inside the main housing near the grounding shoe end and is responsible for supplying power to the grounding system main unit; The host motherboard is installed in the host shell and attached above the host battery, and controls the host buzzer and the host indicator light; The host buzzer is installed at the bottom of the host shell; The host indicator light is installed on the outside of the host B shell; the host buzzer and host indicator light are connected to the host mainboard, and the operating logic of connecting and removing the grounding wire is standardized according to the sound signal emitted by the host buzzer and the light signal displayed by the host indicator light, and serves as a prompt in case of illegal operation; the host connection antenna mounting part is installed on the outside of the host A shell for LORA communication.

3. According to the intelligent contact network grounding device according to claim 1, the grounding hook is a conductive device for grounding protection, connecting the grounding clip and the barrier rod; the grounding clip is fixed inside the U-shaped grounding hook to fix the contact cable; the barrier rod is located at the U-shaped mouth end to control whether to hang up.

4. According to the intelligent contact network grounding device according to claim 3, the slave contact resistance screw is located on the inner side of the grounding hook, used to fix the grounding clip, and together with the measurement module formed inside the slave of the grounding system, measures the slave contact resistance; when the measured contact resistance value reaches the set requirement, the slave indicator light displays a light signal indicating that the contact resistance meets the standard.

5. According to the intelligent contact network grounding device of claim 1, the slave housing is composed of a slave A housing and a slave B housing, forming a closed space for protecting the equipment inside the slave housing; the slave housing is installed next to the grounding hook; the equipment inside the slave housing includes a slave battery, a slave mainboard, a slave buzzer, a slave indicator light, a slave antenna mounting part and the slave electromagnet, and the slave locking rod; a slave sticker is attached to the outside of the slave A housing; the slave battery is installed on the upper part of the slave housing and is responsible for supplying power to the grounding system slave; the slave mainboard is attached to The slave A shell controls the slave buzzer and the slave indicator light; the slave buzzer is embedded in the center of the slave A shell, and the slave indicator light is located above the outer surface of the slave B shell. The slave buzzer and slave indicator light are connected to the slave mainboard. According to the sound signal emitted by the slave buzzer and the light signal displayed by the slave indicator light, the operation logic of connecting and removing the ground wire is standardized, and it serves as a prompt in case of illegal operation; the slave antenna mounting part is installed on the outside of the slave B shell for LORA communication.

Citation Information

Patent Citations

  • Ground wire hanging device for power transmission line maintenance

    CN112186618A

  • Device for live-line installation of grounding wire clamp in distribution network line

    CN114597820A