CN111355136A - A current transformer installation structure of a ring main unit - Google Patents

Abstract

The invention discloses a current transformer mounting structure of a ring main unit, which relates to the field of current transformer mounting and comprises a triangular fixing plate, wherein a triangular adjusting plate is arranged on one side of the triangular fixing plate, rotating holes are formed in the side, close to each other, of the triangular fixing plate and the triangular adjusting plate, the same rotating rod is rotatably mounted in the two rotating holes, and two ends of the rotating rod respectively extend out of the two rotating holes. According to the invention, the installation plugboard and the plurality of threaded fixing holes on the installation plugboard are arranged, so that current transformers with different sizes can be fixed, and the installation plugboard can be directly taken out when the current transformers are installed, so that the current transformers can be installed and maintained outside the ring main unit, the operation of workers is facilitated, and the angles of the installation plugboard and the current transformers on the installation plugboard can be adjusted by rotating the rotating block, so that the installation requirements in different directions can be met.

Description

A current transformer installation structure of a ring main unit

technical field

The invention relates to the technical field of current transformer installation, in particular to a current transformer installation structure of a ring main unit.

Background technique

Ring Main Unit (Ring Main Unit) is a group of electrical equipment for transmission and distribution (high voltage switchgear) installed in a metal or non-metal insulating cabinet or made into an assembled spaced ring network power supply unit. The fuse has the advantages of simple structure, small size, low price, can improve power supply parameters and performance, and power supply safety.

When installing the current transformer in the existing ring main unit, it is mostly fixed inside the ring main unit by bolts, so it needs to be operated inside the ring main unit. When the current transformer is installed, it is inconvenient to operate, and the existing current transformer mounting frame cannot install current transformers of different sizes, and the direction of the installed current transformer cannot be adjusted to meet different installation requirements. Therefore, a loop The current transformer installation structure of the network cabinet can meet people's needs.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a current transformer installation structure of a ring main unit, so as to solve the problem that when installing the current transformer in the existing ring main unit proposed in the above-mentioned background technology, it is mostly fixed inside the ring main unit by bolts. Therefore, it is necessary to operate inside the ring main unit. Due to the small space inside the ring main unit, it is inconvenient to operate during installation and later maintenance of the current transformer, and the existing current transformer mounting frame cannot be installed with different sizes of current mutual inductance. and the direction of the installed current transformer cannot be adjusted to meet different installation requirements.

In order to achieve the above purpose, the present invention provides the following technical solutions: a current transformer installation structure of a ring main unit, comprising a triangular fixing plate, one side of the triangular fixing plate is provided with a triangular adjusting plate, a triangular fixing plate and a triangular adjusting plate The sides that are close to each other are provided with rotating holes, and the same rotating rod is rotated and installed in the two rotating holes. The two ends of the rotating rod respectively extend to the outside of the two rotating holes. The rotating plate between the rotating plate and the triangular adjustment plate, one side of the rotating plate is provided with a socket, and a mounting plugboard is slidably installed in the socket. There are multiple threaded fixing holes.

Preferably, a limit block is fixedly installed on the bottom side of the rotating plate, a limit hole is provided on one side of the limit block, a limit rod is slidably installed in the limit hole, and both ends of the limit rod extend outside the limit hole , the bottom end of the limit rod is fixedly installed with a pull block.

Preferably, a limit spring is sleeved on the limit rod, and both ends of the limit spring are respectively fixed and installed on the side of the limit block and the pull block that are close to each other.

Preferably, the bottom side of the rotating plate is provided with a clamping slot, and one end of the limiting rod away from the pull block extends into the clamping slot.

Preferably, a disc stopper is fixedly installed at one end of the rotating rod close to the triangular fixing plate, and one side of the disc stopper is in contact with one side of the triangular fixing plate.

Preferably, the same connecting plate is fixedly installed on the sides of the triangular fixing plate and the triangular adjusting plate which are close to each other, and the connecting plate is provided with two connecting holes.

Preferably, a rotating block is fixedly installed at one end of the rotating rod close to the triangular fixing plate, the rotating rod is provided with an external thread located between the rotating block and the triangle adjusting plate, and the rotating rod is threadedly sleeved with the rotating block and the triangle adjusting plate. The locking nut between the plates, the inner thread on the locking nut is matched with the outer thread, and one side of the locking nut is in contact with one side of the triangular adjusting plate.

The beneficial effects of the present invention are:

In the present invention, since the installation board and a plurality of threaded fixing holes located on the installation board are provided, current transformers of different sizes can be fixed, and when the current transformer is installed, the installation board can be directly taken out, thereby The current transformer can be installed and maintained outside the ring main unit, which is convenient for the staff to operate, and the angle of the installation board and the current transformer located on the installation board can be adjusted by turning the rotating block, so as to meet the requirements of different directions. installation requirements;

In the present invention, since the locking nut and the limit rod are provided, the installation board can be fixed in the socket of the rotating plate through the limit rod, and the installation board and the current on the installation board can be fixed by the lock nut. The angle of the transformer is fixed.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a current transformer installation structure of a ring main unit proposed by the present invention;

Fig. 2 is the front view structure schematic diagram of the current transformer installation structure of a kind of ring main unit proposed by the present invention;

3 is a schematic structural diagram of part A in FIG. 2 of a current transformer installation structure of a ring main unit proposed by the present invention;

FIG. 4 is a schematic structural diagram of part B in FIG. 2 of a current transformer installation structure of a ring main unit proposed by the present invention.

In the figure: 1. Triangular fixing plate; 2. Triangular adjusting plate; 3. Connecting plate; 4. Connecting hole; 5. Turning hole; 6. Turning rod; 7. Rotating block; 8. Turning plate; 9. Jack; 10. Installation board; 11. Threaded fixing hole; 12. Limit block; 13. Limit hole; 14. Limit rod; 15. Pull block; 16. Card slot; 17. External thread; 18. Lock nut ; 19. Disc stopper.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Referring to Figures 1-4, a current transformer installation structure of a ring main unit includes a triangular fixing plate 1, one side of the triangular fixing plate 1 is provided with a triangular adjusting plate 2, and the triangular fixing plate 1 and the triangular adjusting plate 2 are close to each other. A rotating hole 5 is opened on one side, and the same rotating rod 6 is rotatably installed in the two rotating holes 5. The two ends of the rotating rod 6 extend to the outside of the two rotating holes 5 respectively. The rotating plate 8 between the triangular fixing plate 1 and the triangular adjusting plate 2, one side of the rotating plate 8 is provided with an insertion hole 9, the insertion hole 9 is slidably installed with an installation plug board 10, and one side of the installation plug board 10 extends to the socket. Outside the hole 9, a plurality of threaded fixing holes 11 are evenly opened on the top side of the installation board 10. The installation board 10 can be taken out of the ring main unit, so that the current transformer can be installed and maintained outside the ring main unit. Current transformers of different sizes are installed in a plurality of threaded fixing holes 11 on the board 10 .

In the present invention, a limit block 12 is fixedly installed on the bottom side of the rotating plate 8, a limit hole 13 is defined on one side of the limit block 12, and a limit rod 14 is slidably installed in the limit hole 13, and both ends of the limit rod 14 are Extending to the outside of the limiting hole 13 , a pull block 15 is fixedly installed at the bottom end of the limiting rod 14 .

In the present invention, a limit spring is sleeved on the limit rod 14, and both ends of the limit spring are fixedly installed on the side of the limit block 12 and the pull block 15 that are close to each other. At this time, the slot 16 corresponds to the position of the limit rod 14 , and the slot 16 moves into the limit rod 14 under the reaction force of the limit spring, thereby fixing the position of the installation board 10 .

In the present invention, the bottom side of the rotating plate 8 is provided with a slot 16, and the end of the limit rod 14 away from the pull block 15 extends into the slot 16, and the position of the insert board 10 can be fixed by moving the limit rod 14 into the slot 16 .

In the present invention, one end of the rotating rod 6 close to the triangular fixing plate 1 is fixedly installed with a disc stopper 19 , and one side of the disc stopper 19 is in contact with one side of the triangular fixing plate 1 , through the setting of the disc stopper 19 , prevent the rotating rod 6 from moving out of the rotating hole 5, and cooperate with the locking nut 18 through the disc stopper 19. After pinching the rotating block 7, rotate the locking nut 18 to make it closely contact with one side of the triangular adjustment plate 2, Therefore, the position of the rotating rod 6 is fixed.

In the present invention, the same connecting plate 3 is fixedly installed on the side of the triangular fixing plate 1 and the triangular adjusting plate 2 which are close to each other, and the connecting plate 3 is provided with two connecting holes 4, To set up, the triangular fixing plate 1 and the triangular adjusting plate 2 can be installed on one side of the ring main unit in advance.

In the present invention, the rotating block 7 is fixedly installed at one end of the rotating rod 6 close to the triangular fixing plate 1 , the rotating rod 6 is provided with an external thread 17 between the rotating block 7 and the triangular adjusting plate 2 , and the rotating rod 6 is threadedly sleeved. There is a lock nut 18 between the rotating block 7 and the triangular adjustment plate 2, the inner thread on the lock nut 18 is matched with the outer thread 17, and one side of the lock nut 18 is in line with one side of the triangular adjustment plate 2. Contact, the angle of the rotating rod 6 can be fixed by the setting of the lock nut 18, so that the angle of the installation board 10 and the current transformer located on the installation board 10 can be fixed.

This practical working principle:

Through the setting of the triangular adjusting plate 2 and the two connecting holes 4, the triangular fixing plate 1 and the triangular adjusting plate 2 can be installed on one side of the ring main unit in advance. When different sizes of current transformers need to be installed in the ring main unit , Pull the pull block 15 to drive the limit rod 14 to slide in the limit hole 13 and the card slot 16, the pull block 15 moves to make the limit spring elastically deform, when the limit rod 14 moves out of the card slot 16, it can be pulled Install the plug-in board 10, so that the installation plug-in board 10 is taken out of the ring network cabinet, and then current transformers of different sizes can be installed through the multiple threaded fixing holes 11 on the installation plug-in board 10. After the current transformers are installed, the plug-in board will be installed. 10 is inserted into the jack 9, when the installation board 10 is completely moved into the jack 9, the slot 16 corresponds to the position of the limit rod 14, and the slot 16 moves into the limit under the reaction force of the limit spring In the rod 14, the position of the installation board 10 is fixed, and when the angle of the installation board 10 and the current transformer located on the installation board 10 needs to be adjusted, the lock nut 18 is rotated to make it match the angle of the triangular adjustment plate 2. The sides are separated, and then the rotating block 7 drives the rotating rod 6 to rotate, and the rotating rod 6 rotates to drive the rotating plate 8 to rotate, thereby making the installation plug board 10 and the current transformer located on the installation plug board 10 to rotate. When adjusted to a suitable angle At the time, hold the rotating block 7, and then turn the lock nut 18 in the opposite direction to make it in close contact with one side of the triangular adjustment plate 2, so that the position of the rotating rod 6 is fixed, and thus the position of the current transformer is fixed.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (7)

1. A current transformer installation structure of a ring main unit, comprising a triangular fixing plate (1), characterized in that: one side of the triangular fixing plate (1) is provided with a triangular adjusting plate (2), and the triangular fixing plate ( 1) A rotating hole (5) is provided on the side close to each other of the triangular adjusting plate (2), and the same rotating rod (6) is rotatably installed in the two rotating holes (5). Both ends of the rotating rod (6) respectively extend to the outside of the two turning holes (5), one side of the turning rod (6) is fixedly installed with a turning plate (8) located between the triangular fixing plate (1) and the triangular adjusting plate (2), the turning plate (8) ) is provided with a socket (9) on one side, a mounting board (10) is slidably installed in the socket (9), and one side of the mounting board (10) extends to the outside of the socket (9), and the mounting board ( The top side of 10) is evenly provided with a plurality of threaded fixing holes (11). 2. A current transformer installation structure for a ring main unit according to claim 1, characterized in that: a limit block (12) is fixedly installed on the bottom side of the rotating plate (8), and the limit block (12) There is a limit hole (13) on one side of the limit hole (13), a limit rod (14) is slidably installed in the limit hole (13), and both ends of the limit rod (14) extend to the outside of the limit hole (13). A pull block (15) is fixedly installed at the bottom end of (14). 3. The current transformer installation structure of a ring main unit according to claim 2, characterized in that: a limit spring is sleeved on the limit rod (14), and both ends of the limit spring are respectively fixed and installed on the limit rod (14). The limiting block (12) and the pulling block (15) are on the side close to each other. 4 . The current transformer installation structure of a ring main unit according to claim 1 , characterized in that: the bottom side of the rotating plate ( 8 ) is provided with a clamping slot ( 16 ), and the limit rod ( 14 ) is far away from One end of the pull block (15) extends into the card slot (16). 5. The current transformer installation structure of a ring main unit according to claim 1, wherein a disc stopper (19) is fixedly installed at one end of the rotating rod (6) close to the triangular fixing plate (1). ), one side of the disc stopper (19) is in contact with one side of the triangular fixing plate (1). 6. The current transformer installation structure of a ring main unit according to claim 1, characterized in that: the triangular fixing plate (1) and the triangular adjusting plate (2) are fixedly installed with the same side close to each other. The connecting plate (3) is provided with two connecting holes (4). 7 . The current transformer installation structure of a ring main unit according to claim 1 , wherein a rotating block ( 7 ) is fixedly installed at one end of the rotating rod ( 6 ) close to the triangular fixing plate ( 1 ). 8 . The rotating rod (6) is provided with an external thread (17) located between the rotating block (7) and the triangular adjusting plate (2), and the rotating rod (6) is threadedly sleeved with the rotating block (7) and the triangular adjusting plate (2) between the lock nut (18), the inner thread on the lock nut (18) is matched with the outer thread (17), and one side of the lock nut (18) is in contact with the triangular adjustment plate (2). contact on one side.

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