CN210743854U - Protection device for isolator - Google Patents

Abstract

The utility model discloses a protector for isolator, including the welding frame, the welding frame upper end bolted connection has lower box, welding frame upper end middle part fixed mounting has isolator, the box rear end is provided with drive arrangement down, the box upper end is provided with the box down, be provided with connecting device around going up the box between the board of both sides, it has the arc lid to go up box upper end fixed mounting. A protector for isolator, through setting up drive arrangement and connecting device, can open isolator when opening the box, can once only open three isolator of group through setting up connecting device, avoided staff's repetitive operation, reduced the number of times that the staff is in the face of the risk, reduced staff misoperation's possibility, improved staff's operational safety, further guaranteed staff's operational safety through setting up box and lower box simultaneously.

Description

Protection device for isolator

Technical Field

The utility model relates to an isolator technical field, in particular to protector for isolator.

Background

The high-voltage isolating switch is an important switching device in electric systems of power plants and transformer substations, needs to be matched with a high-voltage circuit breaker for use, and has the main functions of: the safety of the high-voltage electrical appliance and the device during maintenance work is ensured, the voltage isolation function is realized, the high-voltage electrical appliance and the device cannot be used for cutting off, putting in load current and cutting off short-circuit current, and only can be used for certain switching operation without generating strong electric arcs, namely the high-voltage electrical appliance and the device do not have the arc extinguishing function; the voltage class is divided into an indoor type and an outdoor type according to different installation places, and is divided into a single column type, a double column type and a three column type according to the number of the insulating support columns, and each voltage class is provided with optional equipment.

When the high-voltage isolating switch is used, all contacts of the high-voltage isolating switch are exposed in the air and have obvious disconnection points, the isolating switch is not provided with an arc extinguishing device, can not be operated with load and can not be used for cutting off load current or short-circuit current, however, the isolating switch has more defects and faults in the operation of a system, and the high-voltage isolating switch relates to various quality problems. The biggest threat to safe operation is vase fracture trouble, and secondly contact is overheated, motion jamming, mechanism's bite and divide-shut brake not in place, vase flashover etc. bring the injury on the person for the staff easily, in addition, in the use, the staff need operate a plurality of high-voltage isolator one by one, and the inevitable error phenomenon produces the risk. Therefore, we propose a protection device for a disconnecting switch.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a protection device for an isolator, which can effectively solve the problems in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a protector for isolator, includes the weld holder, weld holder upper end bolted connection has lower box, weld holder upper end middle part fixed mounting has isolator, the box rear end is provided with drive arrangement down, the box upper end is provided with the box down, be provided with connecting device between the front and back both sides board of going up the box, it has the arc lid to go up box upper end fixed mounting.

Preferably, drive arrangement includes track support and tripod, the track support all sets up to two sets ofly, and the equal fixed mounting in left end of two sets of track supports has the arc track, the tripod sets up to two sets ofly, and the upper portion and the lower part of tripod medial surface all are connected with second connecting block and first connecting block respectively through the pivot, the second connecting block is located the top of first connecting block, the equal fixed mounting in lateral surface left part of tripod has the bolt axle, the equal threaded connection in one end that the tripod was kept away from to the bolt axle has control nut, and is two sets of the medial surface of track support respectively with the front end and the rear end fixed connection of box down.

Preferably, the first connecting blocks are all fixedly mounted at the upper part of the left end of the lower box body, and the second connecting blocks are all fixedly mounted at the upper part of the left end of the upper box body.

Preferably, connecting device includes first pivot and spacing piece, the equal activity of first pivot surface front side and rear side alternates and is connected with first connecting rod, the one end that first pivot was kept away from to first connecting rod all has the second connecting rod through pivot movable mounting, the equal fixed mounting of one end that first connecting rod was kept away from to the second connecting rod has the second pivot, isolator's one end is all kept away from in the second pivot all with spacing piece fixed connection, the front end and the rear end of first pivot all with spacing piece fixed mounting.

Preferably, the upper end of the isolating switch is movably provided with three groups of joint rods through hinges, the right part of the upper end of each joint rod is fixedly provided with a connecting seat, and the middle parts of the connecting seats are jointly connected with the first rotating shaft in a penetrating and inserting mode.

Preferably, the second rotating shaft is movably connected with the front wall and the rear wall of the upper box body respectively, and the limiting pieces fixedly connected with the second rotating shaft are movably mounted at the front end and the rear end of the upper box body respectively.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in, can play the guard action to isolator through setting up arc lid, going up box and lower box, provide a safety and stability's service environment for isolator, prevent the infringement of foreign matter, prolong isolator's life, improved isolator's safety in utilization.

2. The utility model discloses in, through setting up drive arrangement and connecting device, can open isolator when opening the box, can once only open three isolator of group through connecting device, avoided staff's repetitive operation, reduced the number of times that the staff is in the face of the risk, improved staff's operational safety nature, further guaranteed staff's operational safety through setting up the box and lower box simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of a protection device for an isolating switch of the present invention;

fig. 2 is a schematic view of the overall structure of a driving device of a protection device for an isolating switch according to the present invention;

fig. 3 is a schematic view of the overall structure of the connection device of the protection device for the disconnecting switch according to the present invention;

fig. 4 is a schematic diagram of an overall structure of the disconnecting switch of the protection device for the disconnecting switch of the present invention.

In the figure: 1. welding a frame; 2. a lower box body; 3. an upper box body; 4. a drive device; 5. a connecting device; 6. an isolating switch; 7. an arc-shaped cover; 41. a rail bracket; 42. an arc-shaped track; 43. a tripod; 44. a bolt shaft; 45. a control nut; 46. a first connection block; 47. a second connecting block; 51. a first rotating shaft; 52. a first link; 53. a second link; 54. a second rotating shaft; 55. a limiting sheet; 61. a joint rod; 62. a connecting seat.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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.

As shown in fig. 1-4, the protection device for the disconnecting switch comprises a welding frame 1, wherein a lower box body 2 is connected to the upper end of the welding frame 1 through a bolt, a disconnecting switch 6 is fixedly mounted in the middle of the upper end of the welding frame 1, a driving device 4 is arranged at the rear end of the lower box body 2, an upper box body 3 is arranged at the upper end of the lower box body 2, a connecting device 5 is arranged between the front side plate and the rear side plate of the upper box body 3, and an arc-shaped cover 7 is fixedly mounted at the upper end of the upper box body.

The driving device 4 comprises two groups of track supports 41 and triangular supports 43, the track supports 41 are respectively arranged into two groups, the left ends of the two groups of track supports 41 are respectively and fixedly provided with an arc-shaped track 42, the triangular supports 43 are respectively arranged into two groups, the upper part and the lower part of the inner side surface of each triangular support 43 are respectively connected with a second connecting block 47 and a first connecting block 46 through rotating shafts, the second connecting block 47 is positioned above the first connecting block 46 to achieve the effect of rotatably connecting the upper box 3 with the lower box 2, the left part of the outer side surface of each triangular support 43 is respectively and fixedly provided with a bolt shaft 44, one end of each bolt shaft 44, which is far away from the triangular support 43, is respectively and threadedly connected with a control nut 45, the control nut 45 achieves the effect of controlling the opening and closing of the upper box 3, and the inner; the first connecting blocks 46 are fixedly arranged at the upper part of the left end of the lower box body 2, and the second connecting blocks 47 are fixedly arranged at the upper part of the left end of the upper box body 3; the connecting device 5 comprises a first rotating shaft 51 and a limiting piece 55, a first connecting rod 52 is movably inserted and connected to the front side and the rear side of the outer surface of the first rotating shaft 51, a second connecting rod 53 is movably installed at one end, far away from the first rotating shaft 51, of the first connecting rod 52, a second rotating shaft 54 is fixedly installed at one end, far away from the first connecting rod 52, of the second connecting rod 53, one end, far away from the isolating switch 6, of the second rotating shaft 54 is fixedly connected with the limiting piece 55, the limiting piece 55 plays a role in preventing the second rotating shaft 54 from being separated from the upper box body 3 in the operation process, and the front end and the rear end of the first rotating shaft 51 are fixedly installed with the limiting piece 55; isolator 6 upper end has three groups of joint pole 61 through hinge movable mounting, the equal fixed mounting in upper end right part of joint pole 61 has connecting seat 62, the middle part of connecting seat 62 is common with first pivot 51 interlude be connected second pivot 54 respectively with last box 3 the antetheca and back wall swing joint, and with spacing piece 55 of second pivot 54 fixed connection respectively movable mounting at the front end and the rear end of last box 3, can guarantee that connecting device 5 can follow last box 3 and move jointly.

It should be noted that the present invention is a protection device for an isolating switch, which can open and close the arc cover 7 and the connecting device 5 by setting the driving device 4, movably connect the upper box 3 and the lower box 2 by the tripod 43, connect the driving device 4 and the connecting device 5 by the upper box 3, movably connect the connecting device 5 and the joint rod 61 on the isolating switch 6 by the connecting seat 62, fixedly connect the tripod 43 and the arc track 42 by the control nut 45 and the bolt shaft 44, during the use, the user unscrews the control nut 45 and moves the control nut 45 downwards along the arc track 42, open the upper box 3 and the arc cover 7 by the tripod 43, connect the connecting device 5 and the upper box 3, thereby making the connecting device 5 move on the upper box 3 at any time, the connecting device 5 is connected with the joint rod 61 by the connecting seat 62, therefore, the isolating switch 6 is opened, the control nut 45 is screwed down, the isolating switch 6 is kept in an open state, the isolating switch 6 can be overhauled after the isolating switch 6 is opened, and after overhauling is finished, the control nut 45 is loosened, the upper box body 3 and the lower box body 2 are folded, and the isolating switch 6 is switched on.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a protector for isolator, includes weld holder (1), its characterized in that: welding frame (1) upper end bolted connection has lower box (2), welding frame (1) upper end middle part fixed mounting has isolator (6), box (2) rear end is provided with drive arrangement (4) down, box (2) upper end is provided with box (3) down, be provided with between the front and back both sides board of last box (3) connecting device (5), it has arc lid (7) to go up box (3) upper end fixed mounting.

2. The protection device for the disconnecting switch according to claim 1, characterized in that: drive arrangement (4) include track support (41) and tripod (43), track support (41) all set up to two sets ofly, and the equal fixed mounting in left end of two sets of track supports (41) has arc track (42), tripod (43) set up to two sets ofly, and the upper portion and the lower part of tripod (43) medial surface all are connected with second connecting block (47) and first connecting block (46) respectively through the pivot, second connecting block (47) are located the top of first connecting block (46), the equal fixed mounting in lateral surface left part of tripod (43) has bolt axle (44), the equal threaded connection of one end that tripod (43) were kept away from in bolt axle (44) has control nut (45), and is two sets of the medial surface of track support (41) is respectively with the front end and the rear end fixed connection of lower box (2).

3. The protection device for the disconnecting switch according to claim 2, characterized in that: the first connecting blocks (46) are fixedly mounted on the upper portion of the left end of the lower box body (2), and the second connecting blocks (47) are fixedly mounted on the upper portion of the left end of the upper box body (3).

4. The protection device for the disconnecting switch according to claim 1, characterized in that: connecting device (5) include first pivot (51) and spacing piece (55), the equal movable interlude of first pivot (51) surface front side and rear side is connected with first connecting rod (52), the one end that first pivot (51) were kept away from in first connecting rod (52) all has second connecting rod (53) through pivot movable mounting, the equal fixed mounting of one end that first connecting rod (52) were kept away from in second connecting rod (53) has second pivot (54), the one end that isolator (6) were kept away from in second pivot (54) all with spacing piece (55) fixed connection, the front end and the rear end of first pivot (51) all with spacing piece (55) fixed mounting.

5. The protection device for the disconnecting switch according to claim 1, characterized in that: three groups of joint rods (61) are movably mounted at the upper end of the isolating switch (6) through a hinge, connecting seats (62) are fixedly mounted on the right portion of the upper ends of the joint rods (61), and the middle portions of the connecting seats (62) are connected with the first rotating shaft (51) in a penetrating mode.

6. The protection device for the disconnecting switch according to claim 4, wherein: the second rotating shaft (54) is movably connected with the front wall and the rear wall of the upper box body (3) respectively, and the limiting sheet (55) fixedly connected with the second rotating shaft (54) is movably mounted at the front end and the rear end of the upper box body (3) respectively.

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