CN-224232950-U - Quick earthing device, electromechanical equipment and EMUs train

CN224232950UCN 224232950 UCN224232950 UCN 224232950UCN-224232950-U

Abstract

The utility model relates to a quick grounding device, electromechanical equipment and a motor train unit train, wherein the quick grounding device comprises a magnet assembly, a connecting assembly and a grounding assembly, the magnet assembly is arranged on the side edge of the connecting assembly, a first through hole is formed in the center of the connecting assembly, the grounding assembly penetrates through the first through hole of the connecting assembly, the first end is grounded, and the second end is connected with equipment to be grounded. The utility model provides a quick grounding device which has good portability, simple and quick assembly and disassembly and excellent grounding effect.

Inventors

YUAN YE
ZHOU BIAO
HU BINBIN
ZHANG ZHENLIN
LIU BO

Assignees

株洲凯创技术有限公司

Dates

Publication Date: 20260512
Application Date: 20250402

Claims (9)

1. The quick grounding device for the motor train unit high-voltage cable test is characterized by comprising a magnet assembly, a connecting assembly and a grounding assembly, wherein the magnet assembly is arranged on the side edge of the connecting assembly; the connecting assembly is provided with a first through hole in the center; The grounding assembly passes through a first hole of the connecting assembly, the first end is grounded, the second end is connected with equipment to be grounded, the grounding assembly comprises a grounding wire and a winding plate arranged on the inner side of the first hole, and the grounding wire is wound on the winding plate.
2. The quick connect device of claim 1 wherein the coupling assembly further comprises a second aperture disposed on the side and corresponding to the magnet assembly; The magnet assembly can be detachably arranged in the second hole, can be quickly replaced when the magnet assembly fails or is damaged, can be adjusted by adjusting the depth of the magnet assembly inserted into the second hole, and can be directly taken out of the second hole when the magnet assembly is not required to be fixed by magnetic attraction, and the device is fixed on a fixed point by adopting a fixing pin or a fixing screw or a mode of directly clamping the second hole.
3. The quick ground device of claim 2, wherein the second holes and the magnet assemblies are arranged in groups of several groups each symmetrically distributed along the outside of the first holes.
4. A quick ground engaging apparatus as claimed in claim 3 wherein the second aperture and the end face of the magnet assembly are crescent shaped; The top end of the magnet assembly is provided with a limiting plate; the maximum width of the limiting plate is larger than the aperture of the second hole.
5. The quick ground attachment of claim 4, wherein the magnet assembly comprises a magnet, a protective shell, and a flexible layer disposed around the protective shell; And the protective shell is used for coating the magnet in an injection molding mode.
6. The quick grounding device as in claim 5, wherein a cylindrical mounting tube is provided at one end of the first hole in the connecting assembly, and wherein the mounting tube is made of plastic deformation material and is clamped to the grounding assembly by plastic deformation.
7. The quick ground assembly of claim 6, wherein the ground assembly further comprises a current detector and an alarm connected in parallel with the ground lead.
8. An electromechanical device comprising a motor train unit high voltage test device, characterized by comprising the rapid grounding device of any one of claims 1-7, for achieving rapid disassembly and grounding of the electromechanical device in a high voltage cable test.
9. A motor train unit comprising a rapid grounding device according to any one of claims 1 to 7.

Description

Quick earthing device, electromechanical equipment and EMUs train Technical Field The utility model belongs to the technical field of grounding devices, and particularly relates to a rapid grounding device, electromechanical equipment and a motor train unit train. Background The primary function of the grounding device is to safely introduce excess charge in the circuit or electrical device to ground, thereby preventing safety issues caused by charge accumulation. Taking a motor train unit high-voltage cable test as an example, when the high-voltage cable test is carried out, the test voltage is higher, if the cable is not grounded correctly, charge accumulation can be caused, the accuracy of test data is affected, and even the safety of test staff is endangered. In the experimental process, the grounding position needs to be changed frequently, the current grounding device is mainly grounded by adopting a grounding pile, a grounding wire fixed by bolts and a heavy grounding clamp, the portability is poor, the installation and the disassembly are very complicated, and the test process is greatly influenced. Therefore, how to provide a device with good portability, simple and quick installation and disassembly and good grounding effect is a technical problem to be solved in the field. Disclosure of utility model In order to solve at least one of the technical problems, the utility model provides a quick grounding device, which comprises a magnet assembly, a connecting assembly and a grounding assembly, wherein the magnet assembly is arranged at the side edge of the connecting assembly; the connecting assembly is provided with a first through hole in the center; the grounding assembly penetrates through the first hole of the connecting assembly, the first end is grounded, and the second end is connected with equipment to be grounded. Further, the connecting component also comprises a second hole which is arranged at the side edge and corresponds to the magnet component; the magnet assembly is detachably arranged in the second hole. Further, the second holes and the magnet assemblies are divided into a plurality of groups, and each group is a plurality of groups and symmetrically distributed along the outer sides of the first holes. Further, the second hole and the end face of the magnet assembly are crescent; The top end of the magnet assembly is provided with a limiting plate; the maximum width of the limiting plate is larger than the aperture of the second hole. Further, a magnet assembly including a magnet, a protective shell, and a flexible layer disposed around the protective shell; And the protective shell is used for coating the magnet in an injection molding mode. Further, one end of the first hole on the connecting component is provided with a cylindrical mounting tube, and the mounting tube is made of plastic deformation materials and is clamped with the grounding component through plastic deformation. Further, the grounding assembly includes a grounding wire and a winding plate disposed inside the first hole, and the grounding wire portion is wound on the winding plate. Further, the grounding assembly further comprises a current detector and a warning device which are connected with the grounding wire in parallel. An electromechanical device comprising any one of the rapid grounding means described above. A motor train unit train comprises any one of the rapid grounding devices. In this embodiment, a quick grounding device is provided, when in use, a magnetically attracted object is found near the grounding point, the magnet assembly is close to the selected grounding point, and the magnet assembly arranged on the side edge of the connecting assembly can be automatically attracted to the magnetically attracted object, and the quick installation of the quick grounding device is realized without using bolts or clamps for fixation. At this time, the grounding component passes through the first hole on the connecting component, and the second end is connected with the equipment to be grounded, so that the rapid grounding of the equipment to be grounded is completed. Because the magnetic fixing mode is adopted, the traditional bolt or clamp fixing mode is replaced, the installation and the disassembly of the grounding device are quicker, the magnet adsorption provides a larger contact area, compared with the traditional clamp contact point, the magnetic fixing device is more uniform, the abrasion and the damage to the object adsorbed by the magnetic force are avoided, the mechanical loss is greatly reduced, and the service life is prolonged. Preferably, the grounding assembly employs a highly conductive and abrasion resistant conductor, such as a copper wire, to ensure an unobstructed ground return path. The length and cross-sectional area of a particular conductor can be calculated and selected by those skilled in the art based on the magnitude of the voltage and current to meet the grounding requireme