CN221486265U - Multi-point grounding current protection device for transformer core - Google Patents

Abstract

The utility model discloses a multipoint grounding current protection device for a transformer core, which relates to the technical field of power equipment and comprises a fixing plate, wherein both sides of the fixing plate are fixedly connected with mounting side lugs, the top end of the fixing plate is provided with a plurality of grounding mechanisms, each grounding mechanism consists of a grounding head, a nut, a fixing block, a clamping plate and a connecting block, the clamping plate is slidingly connected to the inner side of the fixing plate, the connecting block and a sliding sleeve are arranged on the inner side of the fixing plate, the grounding head is arranged at the top end of the nut, the nut is arranged at the top end of the fixing block, the bottom end of the nut is provided with a threaded block, and the threaded block is in threaded connection with the inner side of the fixing block. According to the utility model, the grounding mechanism is arranged, the clamping plate can be connected to the inner side of the fixed plate in a sliding manner, the clamping mechanism is arranged at the top end of the clamping plate, so that the grounding mechanism can be effectively limited and fixed, the position of the grounding mechanism can be conveniently adjusted, a plurality of iron cores which need to be grounded can be conveniently connected, and the applicability of the device is improved.

Description

Transformer core multi-point grounding current protection device

Technical Field

The utility model relates to the technical field of electric power equipment, in particular to a transformer iron core multi-point grounding current protection device.

Background technique

The power transformer is one of the main and expensive equipment in the power system. Its normal operation is an important guarantee for the safe, reliable and economical operation of the power system. When the power transformer is operating normally, the iron core must be reliably grounded. If it is not grounded, the floating potential of the iron core to the ground will cause intermittent breakdown discharge to the ground. When the existing iron core grounding device is in use, most of the single grounding device is connected to the iron core of the transformer, resulting in low applicability. When there are multiple iron cores that need to be grounded, multiple grounding devices need to be installed to connect the iron cores, causing inconvenience in use.

Therefore, it is necessary to invent a transformer core multi-point grounding current protection device to solve the above problems.

Utility Model Content

The utility model aims to provide a transformer core multi-point grounding current protection device to solve the problems raised in the above background technology.

To achieve the above object, the utility model provides the following technical solution: a transformer core multi-point grounding current protection device, comprising a fixing plate, both sides of which are fixedly connected with mounting side ears;

A plurality of grounding mechanisms are arranged at the top of the fixing plate, and the grounding mechanisms are composed of a grounding head, a nut, a fixing block, a clamping plate and a connecting block. The clamping plate is slidably connected to the inner side of the fixing plate, the connecting block and the sliding sleeve are arranged on the inner side of the fixing plate, the grounding head is arranged at the top of the nut, and the nut is arranged at the top of the fixing block;

A threaded block is arranged at the bottom end of the nut, and the threaded block is threadedly connected to the inner side of the fixing block.

Preferably, a conductive rod is provided on the inner side of the fixed plate, a fixing frame is provided at the bottom end of both sides of the conductive rod, both ends of the conductive rod are fixedly connected with connecting rods, a mounting groove is provided on the inner side of the connecting rod, through holes are provided on both sides of the fixed plate, and the through holes and the connecting rods are provided corresponding to each other.

Preferably, a slot body is provided on the inner side of the fixing plate, the clamping plate is slidably connected to the inner side of the slot body, and the sliding sleeve is slidably connected to the inner side of the conductive rod.

Preferably, the top end of the card plate is fixedly connected with a card block, the fixed block is slidably connected to the outside of the card block, the bottom end of the fixed block is fixedly connected with a plug rod, and the plug rod penetrates to the bottom end of the card plate.

Preferably, a guide rod is fixedly connected to the inner side of the clamping block, a slider is slidably connected to the outer side of the guide rod, a connecting head is fixedly connected to one side of the slider, the connecting head is fixedly connected to the outer side of the fixed block, and a spring is arranged on the outer side of the guide rod.

The technical effects and advantages of the utility model are as follows: the utility model provides a grounding mechanism, and the clamping plate can be slidably connected to the inner side of the fixed plate. The top of the clamping plate is provided with a clamping mechanism, which can effectively limit and fix the grounding mechanism, facilitate the adjustment of the position of the grounding mechanism, and facilitate the connection of multiple iron cores that need to be grounded, thereby increasing the applicability of the device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the utility model.

FIG. 2 is a schematic diagram of the structure enlarged at point A in FIG. 1 .

FIG3 is a schematic diagram of the front structure of the grounding mechanism in the present invention.

FIG. 4 is a schematic diagram of the structure enlarged at point B in FIG. 3 .

In the figure: 1. fixing plate; 11. mounting side ear; 12. through hole; 13. slot body; 14. fixing frame; 2. grounding mechanism; 21. grounding head; 22. nut; 221. threaded block; 23. fixing block; 231. plug-in rod; 232. connector; 24. clamping plate; 241. clamping block; 2411. guide rod; 2412. spring; 2413. slider; 25. connecting block; 26. sleeve; 3. conductive rod; 31. connecting rod; 311. mounting slot.

Detailed ways

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.

The utility model provides a transformer core multi-point grounding current protection device as shown in Figures 1-4, comprising a fixing plate 1, both sides of which are fixedly connected with mounting side ears 11;

A plurality of grounding mechanisms 2 are arranged at the top of the fixing plate 1. The grounding mechanism 2 is composed of a grounding head 21, a nut 22, a fixing block 23, a clamping plate 24 and a connecting block 25. The clamping plate 24 is slidably connected to the inner side of the fixing plate 1. The connecting block 25 and the sliding sleeve 26 are arranged on the inner side of the fixing plate 1. The grounding head 21 is arranged at the top of the nut 22. The nut 22 is arranged at the top of the fixing block 23.

A threaded block 221 is provided at the bottom end of the nut 22, and the threaded block 221 is threadedly connected to the inner side of the fixed block 23. By providing the grounding mechanism 2, the clamping plate 24 can be slidably connected to the inner side of the fixed plate 1. The top of the clamping plate 24 is provided with a clamping mechanism, which can effectively limit and fix the grounding mechanism 2, facilitate the adjustment of the position of the grounding mechanism 2, and facilitate the connection of multiple iron cores that need to be grounded, thereby increasing the applicability of the device;

A conductive rod 3 is arranged on the inner side of the fixing plate 1, and fixing frames 14 are arranged at the bottom ends of both sides of the conductive rod 3. Connecting rods 31 are fixedly connected to both ends of the conductive rod 3, and mounting grooves 311 are arranged on the inner side of the connecting rod 31. Through holes 12 are arranged on both sides of the fixing plate 1, and the through holes 12 and the connecting rods 31 are arranged corresponding to each other. By setting the through holes 12, it is convenient to pass the grounding wire through the through holes 12 and connect it to the inner side of the mounting groove 311, so that the conductive rod 3 is completely grounded. The setting of the fixing frame 14 can effectively limit and fix the conductive rod 3. The fixing frame 14 is of insulating design, which can effectively prevent the power of the conductive rod 3 from being transmitted to the outside of the fixing plate 1;

A slot body 13 is provided on the inner side of the fixing plate 1, the card plate 24 is slidably connected to the inner side of the slot body 13, the sliding sleeve 26 is slidably connected to the inner side of the conductive rod 3, the top of the card plate 24 is fixedly connected with a card block 241, the fixing block 23 is slidably connected to the outer side of the card block 241, and the bottom end of the fixing block 23 is fixedly connected with a plug rod 231, the plug rod 231 penetrates to the bottom end of the card plate 24, and the card plate 24 is slidably connected to the inner side of the slot body 13, and the bottom end of the slot body 13 is provided with a through groove corresponding to the plug rod 231, so that the plug rod 231 can be clamped on the inner side of the through groove, and by evenly arranging a plurality of them, it is convenient to clamp the plug rod 231, thereby effectively limiting the entire grounding mechanism 2;

A guide rod 2411 is fixedly connected to the inner side of the clamping block 241, and a slider 2413 is slidably connected to the outer side of the guide rod 2411. A connecting head 232 is fixedly connected to one side of the slider 2413. The connecting head 232 is fixedly connected to the outer side of the fixed block 23. A spring 2412 is arranged on the outer side of the guide rod 2411. By arranging the slider 2413 and the connecting head 232, the fixed block 23 can be effectively fixed, so that the fixed block 23 can stably slide up and down on the outer side of the clamping block 241. By arranging the guide rod 2411, the slider 2413 can effectively slide stably on the outer side of the guide rod 2411. By arranging the spring 2412, the slider 2413 can be effectively pressed.

Working principle of the utility model: when in use, according to the number of iron cores to be grounded and the position of the grounding mechanism 2 to be adjusted as needed, the fixing block 23 is pulled up from the top of the clamping plate 24, the position of the grounding mechanism 2 is adjusted, and after the position is determined, the fixing block 23 is lowered so that the fixing block 23 moves downward under the drive of the spring 2412, so that the plug-in rod 231 is limited to the inner side of the through groove, effectively limiting the grounding mechanism 2, and the setting of the grounding head 21 is convenient for connecting the iron core, and the sliding sleeve 26 is sleeved on the outer side of the conductive rod 3 for the entire grounding work. By setting the through hole 12, it is convenient to pass the grounding wire through the through hole 12 and connect it to the inner side of the mounting groove 311, so that the conductive rod 3 is completely grounded, and the setting of the fixing frame 14 can effectively limit and fix the conductive rod 3, and the fixing frame 14 is an insulating design, which can effectively prevent the power of the conductive rod 3 from being transmitted to the outer side of the fixing plate 1.

Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A transformer core multi-point grounding current protection device, comprising a fixing plate (1), wherein both sides of the fixing plate (1) are fixedly connected with mounting side ears (11); The invention is characterized in that: a plurality of grounding mechanisms (2) are arranged at the top of the fixing plate (1), and the grounding mechanism (2) is composed of a grounding head (21), a nut (22), a fixing block (23), a clamping plate (24) and a connecting block (25); the clamping plate (24) is slidably connected to the inner side of the fixing plate (1); the connecting block (25) and the sliding sleeve (26) are arranged on the inner side of the fixing plate (1); the grounding head (21) is arranged at the top of the nut (22); and the nut (22) is arranged at the top of the fixing block (23); A threaded block (221) is provided at the bottom end of the nut (22), and the threaded block (221) is threadedly connected to the inner side of the fixing block (23). 2. The transformer core multi-point grounding current protection device according to claim 1 is characterized in that: a conductive rod (3) is arranged on the inner side of the fixing plate (1), and fixing frames (14) are arranged at the bottom ends of both sides of the conductive rod (3), and connecting rods (31) are fixedly connected to both ends of the conductive rod (3), and mounting grooves (311) are arranged on the inner side of the connecting rod (31), and through holes (12) are arranged on both sides of the fixing plate (1), and the through holes (12) and the connecting rods (31) are arranged corresponding to each other. 3. The transformer core multi-point grounding current protection device according to claim 2 is characterized in that a slot body (13) is provided on the inner side of the fixing plate (1), the clamping plate (24) is slidably connected to the inner side of the slot body (13), and the sliding sleeve (26) is slidably connected to the inner side of the conductive rod (3). 4. The transformer core multi-point grounding current protection device according to claim 3 is characterized in that: the top end of the clamping plate (24) is fixedly connected with a clamping block (241), the fixed block (23) is slidably connected to the outside of the clamping block (241), the bottom end of the fixed block (23) is fixedly connected with a plug-in rod (231), and the plug-in rod (231) passes through the bottom end of the clamping plate (24). 5. The transformer core multi-point grounding current protection device according to claim 4 is characterized in that: a guide rod (2411) is fixedly connected to the inner side of the clamping block (241), a slider (2413) is slidably connected to the outer side of the guide rod (2411), a connector (232) is fixedly connected to one side of the slider (2413), the connector (232) is fixedly connected to the outer side of the fixed block (23), and a spring (2412) is arranged on the outer side of the guide rod (2411).