CN214203550U

CN214203550U - Special five-prevention interlocking device for transformer substation

Info

Publication number: CN214203550U
Application number: CN202120181404.0U
Authority: CN
Inventors: 王严; 徐琦睿; 訾泉; 赵琛; 徐峰; 方圣; 董海涛; 王晓斌; 张建力; 王源卿; 徐晓; 巩明涛; 张彪; 赵彦龙; 贺威; 王刚; 张海涛
Original assignee: State Grid Corp of China SGCC; Suzhou Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Suzhou Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-09-14
Anticipated expiration: 2031-01-22

Abstract

The utility model proposes a special five-proof interlocking device for a substation, which comprises a plate body, a first cylinder body and a second cylinder body. The first cylinder body is fixedly embedded in the plate body, and the second cylinder body is fixedly embedded in the plate body. In the body, a switch rod is movable in the first cylinder, a rotation rod is rotated in the second cylinder, and a switch arc disc is fixedly installed at one end of the rotation rod away from the second cylinder. The utility model can open the isolation switch only when the grounding switch is opened. Put the first lock cylinder outside the first hexagonal column, and at the same time, the first limit rod slides into the first chute, rotates through the second chute, and then falls into the third chute. At this time, the switch lever is in the right direction. In the telescopic state, the grounding switch is turned on; the switch rod drives the connecting plate to move, and at the same time drives the embedded rod to slide out of the rotating disk, so that the rotating disk can rotate. When the second rotating handle is pressed and rotated in the same way, the switch arc disk can be rotated Trigger the disconnect switch; enhance safety by interconnecting the disconnect switch and earthing switch.

Description

Special five-prevention interlocking device for transformer substation

Technical Field

The utility model relates to a power transmission and distribution equipment technical field specifically is a dedicated five prevent interlock of transformer substation.

Background

The medium-voltage switches for 10KV power transmission and distribution lines all meet the five-prevention requirement: 1) the circuit breaker can be prevented from being opened and closed by mistake; 2) the isolating switch can be prevented from being switched on and off under load; 3) can prevent the electrified ground switch; 4) can prevent the power transmission with the ground wire; 5) can prevent the cable from entering the live cable bin by mistake. The live cable bin is prevented from being mistakenly entered, so that the life safety of operators can be directly harmed.

When disconnecting the isolating switch and the grounding switch, the isolating switch and the grounding switch are respectively arranged in the prior art, so that the operation is easy to be wrong, and the risk that the switches are not disconnected exists.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a dedicated five prevent interlock of transformer substation to solve the problem that proposes in the above-mentioned background art.

The technical scheme of the utility model is realized like this: the utility model provides a dedicated five prevent interlock of transformer substation, includes plate body, first barrel and second barrel, first barrel fixed embedding install in the plate body, second barrel fixed embedding install in the plate body, the activity has the switch lever in the first barrel, second barrel internal rotation has the dwang, the dwang is kept away from the one end fixed mounting of second barrel has the switch arc dish.

Preferably, switch lever one end fixed mounting has first hexagonal post, the surface cover of switch lever is equipped with first spring, the surface activity cover of first hexagonal post is equipped with a first lock section of thick bamboo, the welding has first gag lever post on the first lock section of thick bamboo, first lock section of thick bamboo one end fixed mounting has first rotation handle.

Preferably, a first sliding groove is formed in the first cylinder, a second sliding groove is formed in a position, communicated with the first sliding groove, in the first cylinder, a third sliding groove is formed in a position, communicated with the second sliding groove, in the first cylinder, and a rotating arrow is carved on the first cylinder.

Preferably, dwang one end fixed mounting has the rolling disc, the rolling disc with the second barrel rotates to be connected, rolling disc one end fixed mounting has the telescopic link, the telescopic link is kept away from the one end fixed mounting of rolling disc has second hexagonal post, the surface cover of telescopic link is equipped with the second spring, the surface activity cover of second hexagonal post is equipped with a second lock section of thick bamboo, the welding has the second gag lever post on the second lock section of thick bamboo, second lock section of thick bamboo one end fixed mounting has the second to rotate, second barrel one end fixed mounting has the ring body, the ring body run through in inside the dwang.

Preferably, a hole is formed in the rotating disc, the arc rod is fixedly mounted on the ring body, a rotating plate slides on the outer surface of the arc rod, a third spring is sleeved on the outer surface of the arc rod, and the rotating plate is connected with the rotating rod in a welded mode.

Preferably, a fourth sliding groove is formed in the second cylinder, a fifth sliding groove is formed in a position, communicated with the fourth sliding groove, in the second cylinder, and a sixth sliding groove is formed in a position, communicated with the fifth sliding groove, in the second cylinder.

Preferably, the fixed cover in surface of switch lever is equipped with the connecting plate, the welding of connecting plate one end has the embedding pole, the embedding pole with second barrel swing joint.

Compared with the prior art, the utility model has the advantages of it is following: the utility model discloses under the condition of opening earthing switch, just can open isolator. The first rotating handle is held by a hand, the first lock cylinder is sleeved outside the first hexagonal column, meanwhile, the first limiting rod correspondingly slides into the first sliding groove, rotates through the second sliding groove and then falls into the third sliding groove, and at the moment, the switch rod is in a rightward telescopic state to open the grounding switch; the switch rod drives the connecting plate to move, and simultaneously drives the embedding rod to slide out of the rotating disc, so that the rotating disc can rotate, and when the second rotating handle is pressed to rotate in the same way, the switch arc disc can rotate to trigger the isolating switch; through the mutual correlation of the isolating switch and the grounding switch, the safety is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a left side view of fig. 1 in accordance with the present invention;

FIG. 3 is a view showing an internal structure of the first cylinder of FIG. 1 according to the present invention;

FIG. 4 is a view showing an internal structure of the second cylinder of FIG. 1 according to the present invention;

fig. 5 is a schematic structural view of the switch arc plate shown in fig. 1 according to the present invention;

FIG. 6 is a schematic view of the rotary disk of FIG. 1 according to the present invention;

fig. 7 is a schematic structural view of the ring body shown in fig. 1 according to the present invention.

The attached drawings are as follows: 1. a plate body; 2. a first cylinder; 3. rotating the arrow; 4. a first rotating handle; 5. a first lock cylinder; 6. a first limit rod; 7. a first chute; 8. a second chute; 9. a third chute; 10. a first hexagonal column; 11. a switch lever; 12. a first spring; 13. a connecting plate; 14. an embedded rod; 15. a second cylinder; 16. a second lock cylinder; 17. a second limiting rod; 18. a second rotating handle; 19. a second hexagonal column; 20. a telescopic rod; 21. a second spring; 22. rotating the disc; 23. a ring body; 24. rotating the rod; 25. switching an arc disc; 26. an aperture; 27. a rotating plate; 28. an arc rod; 29. a third spring; 30. a fourth chute; 31. a fifth chute; 32. and a sixth chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, the embodiment of the utility model discloses dedicated five prevent interlock of transformer substation, including plate body 1, first barrel 2 and second barrel 15, the fixed embedding of first barrel 2 is installed in plate body 1, and the fixed embedding of second barrel 15 is installed in plate body 1, and the activity has switch lever 11 in the first barrel 2, and the 15 internal rotations of second barrel have dwang 24, and the one end fixed mounting that second barrel 15 was kept away from to dwang 24 has switch arc dish 25.

In this embodiment, 11 one end fixed mounting of switch lever has first hexagonal post 10, and the surface cover of switch lever 11 is equipped with first spring 12, and the surface activity cover of first hexagonal post 10 is equipped with first lock section of thick bamboo 5, and the welding has first gag lever post 6 on the first lock section of

thick bamboo

5, and 5 one end fixed mounting of first lock section of thick bamboo has first rotation 4.

In this embodiment, a first sliding groove 7 is formed in the first cylinder 2, a second sliding groove 8 is formed in the first cylinder 2 and communicated with the first sliding groove 7, a third sliding groove 9 is formed in the first cylinder 2 and communicated with the second sliding groove 8, and a rotation arrow 3 is carved on the first cylinder 2.

In this embodiment, dwang 24 one end fixed mounting has rolling disc 22, rolling disc 22 rotates with second barrel 15 to be connected, 22 one end fixed mounting of rolling disc has telescopic link 20, the one end fixed mounting that rolling disc 22 was kept away from to telescopic link 20 has second hexagonal post 19, the surface cover of telescopic link 20 is equipped with second spring 21, the surface movable sleeve of second hexagonal post 19 is equipped with a second lock section of thick bamboo 16, the welding has second gag lever post 17 on the second lock section of

thick bamboo

16, 16 one end fixed mounting of a second lock section of thick bamboo has the second to rotate 18, 15 one end fixed mounting of second barrel has ring body 23, ring body 23 runs through inside dwang 24.

In this embodiment, a hole 26 is formed in the rotating disc 22, an arc rod 28 is fixedly mounted on the ring body 23, a rotating plate 27 slides on the outer surface of the arc rod 28, a third spring 29 is sleeved on the outer surface of the arc rod 28, and the rotating plate 27 is welded to the rotating rod 24.

In this embodiment, a fourth sliding chute 30 is formed in the second cylinder 15, a fifth sliding chute 31 is formed in a position in the second cylinder 15, which is communicated with the fourth sliding chute 30, and a sixth sliding chute 32 is formed in a position in the second cylinder 15, which is communicated with the fifth sliding chute 31.

In this embodiment, the outer surface of the switch lever 11 is fixedly sleeved with a connecting plate 13, one end of the connecting plate 13 is welded with an embedded lever 14, and the embedded lever 14 is movably connected with the second cylinder 15.

The working principle is as follows: the disconnecting switch can only be opened if the grounding switch is opened. The first rotating handle 4 is held by a hand, the first lock cylinder 5 is sleeved outside the first hexagonal column 10, meanwhile, the first limiting rod 6 correspondingly slides into the first sliding groove 7, rotates through the second sliding groove 8 and then falls into the third sliding groove 9, and at the moment, the switch rod 11 is in a rightward telescopic state to turn on the grounding switch; the switch lever 11 drives the connecting plate 13 to move, and simultaneously drives the embedded lever 14 to slide out of the rotating disc 22, so that the rotating disc 22 can rotate, and when the second rotating handle 18 is pressed to rotate in the same way, the switch arc disc 25 can rotate to trigger the isolating switch; through the mutual correlation of the isolating switch and the grounding switch, the safety is enhanced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a dedicated five prevent interlock of transformer substation, includes plate body (1), first barrel (2) and second barrel (15), first barrel (2) fixed embedding install in plate body (1), second barrel (15) fixed embedding install in plate body (1), its characterized in that: first barrel (2) internalization has switch lever (11), second barrel (15) internal rotation has dwang (24), dwang (24) are kept away from the one end fixed mounting of second barrel (15) has switch arc dish (25).

2. The substation-specific five-prevention interlock according to claim 1, wherein: switch lever (11) one end fixed mounting has first hexagonal post (10), the surface cover of switch lever (11) is equipped with first spring (12), the surface activity cover of first hexagonal post (10) is equipped with first lock cylinder (5), the welding has first gag lever post (6) on first lock cylinder (5), first lock cylinder (5) one end fixed mounting has first rotation (4).

3. The substation-specific five-prevention interlock according to claim 1, wherein: a first sliding groove (7) is formed in the first barrel (2), a second sliding groove (8) is formed in the position, communicated with the first sliding groove (7), of the first barrel (2), a third sliding groove (9) is formed in the position, communicated with the second sliding groove (8), of the first barrel (2), and a rotating arrow (3) is carved on the first barrel (2).

4. The substation-specific five-prevention interlock according to claim 1, wherein: dwang (24) one end fixed mounting has rolling disc (22), rolling disc (22) with second barrel (15) rotate and connect, rolling disc (22) one end fixed mounting has telescopic link (20), telescopic link (20) are kept away from the one end fixed mounting of rolling disc (22) has second hexagonal post (19), the surface cover of telescopic link (20) is equipped with second spring (21), the surface movable sleeve of second hexagonal post (19) is equipped with second lock section of thick bamboo (16), the welding has second gag lever post (17) on second lock section of thick bamboo (16), second lock section of thick bamboo (16) one end fixed mounting has the second to rotate (18), second barrel (15) one end fixed mounting has ring body (23), ring body (23) run through in dwang (24) are inside.

5. The substation-specific five-prevention interlock according to claim 4, wherein: set up porose (26) on rolling disc (22), fixed mounting has arc pole (28) on ring body (23), the surface of arc pole (28) slides has rotating plate (27), the surface cover of arc pole (28) is equipped with third spring (29), rotating plate (27) with dwang (24) welded connection.

6. The substation-specific five-prevention interlock according to claim 1, wherein: a fourth sliding groove (30) is formed in the second cylinder (15), a fifth sliding groove (31) is formed in a position, communicated with the fourth sliding groove (30), in the second cylinder (15), and a sixth sliding groove (32) is formed in a position, communicated with the fifth sliding groove (31), in the second cylinder (15).

7. The substation-specific five-prevention interlock according to claim 1, wherein: the outer fixed cover of surface of switch lever (11) is equipped with connecting plate (13), the welding of connecting plate (13) one end has embedding pole (14), embedding pole (14) with second barrel (15) swing joint.