CN216773125U

CN216773125U - Double-isolating switch combination device

Info

Publication number: CN216773125U
Application number: CN202122601064.5U
Authority: CN
Inventors: 林立镇
Original assignee: Suctrn Technology Co ltd
Current assignee: Suctrn Technology Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-06-17
Anticipated expiration: 2031-10-28

Abstract

The utility model relates to the technical field of isolating switches, and particularly discloses a double-isolating switch combination device which comprises a rack; the isolation shell is sleeved outside the rack; the double-isolation switch comprises two lead screws, two isolation conductive cylinders and a turbine, wherein the two isolation conductive cylinders are respectively sleeved outside the two lead screws, the end parts of the two lead screws are connected through the turbine, and the thread turning directions of the two lead screws are opposite; the isolation rotating shaft is arranged on the rack; the worm is arranged on the isolation rotating shaft and rotates along with the rotation of the isolation rotating shaft, the worm is in butt joint with the worm, the worm is used for driving the worm to rotate and further drive the two lead screws to rotate, and therefore the two isolation conductive cylinders on the two lead screws are driven to move in different directions up and down to form movable connection with the isolation machine shell, and the opening and closing of the double isolation switches are achieved. The isolating conductive cylinder can be movably connected with the isolating shell in an up-down linear motion mode to realize the opening and closing processes of the double isolating switches, and is compact in overall structure and convenient to operate.

Description

Double-isolating switch combination device

Technical Field

The utility model relates to the technical field of double isolating switches, in particular to a double isolating switch combination device.

Background

Double-isolation switches in a circuit breaker in the prior art are generally isolation disconnecting links, the double-isolation switches are mainly subjected to rotary operations such as horizontal rotation or vertical rotation and the like when the circuit breaker is switched on or switched off, so that the isolation disconnecting links are in contact with and separated from a copper bar, but the motion path and the rotary swing range of the isolation disconnecting links in the technical scheme are wider, the occupied space is more, and in order to meet the safety distance between a conductor and a charged body, the whole body overall dimension of the double-isolation switches is required to be correspondingly increased to meet the electric standard requirement, and the assembly and operation process is extremely inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-isolating switch combination device to solve the problems that the traditional rotary isolating switch occupies too much space and the like.

In order to realize the purpose, the technical scheme of the utility model is as follows: a double-isolating switch combination device comprises

A frame;

the isolation shell is sleeved outside the rack;

the double-isolating switch comprises two screw rods, two isolating conductive cylinders and a turbine, wherein the two isolating conductive cylinders are respectively sleeved outside the two screw rods, the end parts of the two screw rods are connected through the turbine, and the thread turning directions of the two screw rods are opposite;

the isolation rotating shaft is arranged on the rack;

the worm is arranged on the isolation rotating shaft and rotates along with the rotation of the isolation rotating shaft, the worm is in butt joint with the worm, the worm is used for driving the worm to rotate and further drive the two lead screws to rotate, and therefore the two isolation conductive cylinders on the two lead screws are driven to move in different directions up and down to form movable connection with the isolation machine shell, and the opening and closing of the double isolation switches are achieved.

Preferably, the screw sleeves connected with the screw rods are respectively fixed at the ends, close to each other, of the two isolated conductive cylinders.

Preferably, the two ends of the turbine are riveted and fixed with the two screw rods through pins respectively.

Preferably, the end of each of the two isolated conductive cylinders, which is far away from each other, is provided with a nut for forming a movable electrical connection with the isolated enclosure.

Preferably, still be provided with a vacuum circuit breaker and circuit breaker main shaft in the frame, vacuum circuit breaker includes utmost point post and sets up the vacuum interrupter in utmost point post, and the quiet end of vacuum interrupter is connected with one side electrical connection of two isolation conductive cylinders respectively, and the end that moves of vacuum interrupter forms the drive with the circuit breaker main shaft through a drive assembly to be connected, and the circuit breaker main shaft is rotatory to be moved through the end that moves of drive assembly's drive vacuum interrupter, realizes closing/minute of vacuum interrupter.

Preferably, an operating mechanism is further arranged on one side of the rack, and the operating mechanism is used for controlling and driving the isolation rotating shaft or the main shaft of the circuit breaker to rotate around the axis of the isolation rotating shaft or the main shaft of the circuit breaker respectively.

The utility model has the following beneficial effects:

(1) according to the double-isolation switch, the isolating rotating shaft drives the worm rod to drive the turbine to rotate so as to drive the two isolating conductive cylinders to movably connect with the isolating shell in an up-and-down linear motion mode, so that the opening and closing processes of the double-isolation switch are realized.

(2) One ends of the two isolating conductive cylinders, which are close to each other, are respectively connected with the screw rod through the threaded sleeves, so that the direct connection between the isolating conductive cylinders and the screw rod is prevented from being worn due to long-time use, and the failure rate and the maintenance cost are reduced.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is a front view of an embodiment of the present invention.

Fig. 3 is a cross-sectional view at a-a in fig. 2.

The attached drawings are marked as follows: the device comprises a machine frame 1, an isolation rotating shaft 2, a lead screw 3, an isolation conductive cylinder 4, a turbine 5, a scroll bar 6, a threaded sleeve 7, a pin 8, a screw cap 9, a pole 10, a vacuum arc extinguish chamber 11, a breaker main shaft 12, a transmission assembly 13 and an operating mechanism 14.

Detailed Description

To further illustrate the various embodiments, the utility model provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

Referring to fig. 1-3, as an embodiment of the present invention, a dual-isolation switch assembly is provided, which includes

A frame 1;

an isolation casing (not shown) sleeved outside the rack 1;

the double-isolation switch comprises two screw rods 3, two isolation conductive cylinders 4 and a turbine 5, wherein the two isolation conductive cylinders 4 are respectively sleeved outside the two screw rods 3, the end parts of the two screw rods 3 are connected through the turbine 5, and the thread turning directions of the two screw rods 3 are opposite;

an isolation rotating shaft 2 arranged on the frame 1;

the scroll 6 is arranged on the isolation rotating shaft 2 and rotates along with the rotation of the isolation rotating shaft 2, the scroll 6 is in butt joint with the turbine 5, the scroll 6 is used for driving the turbine 5 to rotate so as to drive the two lead screws 3 to rotate, and therefore the two isolation conductive cylinders 4 on the two lead screws 3 are driven to move up and down in different directions to form movable connection with the isolation enclosure, so that the opening and closing of the double isolation switches are realized.

Above-mentioned technical scheme, it rotates and drives the worm 6 and rotate and then drive the turbine 5 and rotate to rotate through keeping apart 2 forward rotations of pivot, thereby drive two lead screws 3 and rotate, make two keep apart conductive section of thick bamboo 4 on two lead screws 3 to the different direction rectilinear motion of the direction of keeping away from each other, until pushing away to be connected with the contact of isolation casing, make the circuit switch-on, two isolator are in the combined floodgate state this moment, the same is said, it rotates and then drives the turbine 5 rotation to drive two lead screws 3 through keeping apart 2 reverse rotations of pivot drive worm 6, thereby drive two lead screws 3 and rotate, make two keep apart conductive section of thick bamboo 4 on two lead screws 3 to the different direction rectilinear motion of the direction that is close to each other, make two keep apart conductive section of thick bamboo 4 and keep apart the casing separation, make the circuit disconnection, two isolator are in the state this moment. The isolating conductive cylinder 4 of the double isolating switch is movably connected with the isolating shell in a vertical linear motion mode so as to realize the switching-on and switching-off process of the double isolating switch.

In this embodiment, the screw sleeves 7 connected with the lead screw 3 are respectively fixed at the ends, close to each other, of the two isolating conductive cylinders 4, and the screw sleeves 7 and the lead screw 3 form a threaded connection to drive the isolating conductive cylinders 4 to move linearly, so that the direct connection between the isolating conductive cylinders 4 and the lead screw 3 is prevented from being worn due to long-time use, and the failure rate and the maintenance cost are reduced.

In this embodiment, the two ends of the turbine 5 are riveted and fixed with the two screw rods 3 through the pins 8, so that the stability and the reliability are higher.

In this embodiment, the end of the two isolated conductive cylinders 4 away from each other is provided with the nut 9 for forming a movable electrical connection with the isolated enclosure, and the nuts 9 on the two isolated conductive cylinders 4 are in contact with or separated from the isolated enclosure at the same time, which is safer and more reliable and has higher operation efficiency.

In this embodiment, still be provided with a vacuum circuit breaker and circuit breaker main shaft 12 in the frame 1, vacuum circuit breaker includes utmost point post 10 and sets up the vacuum interrupter 11 in utmost point post 10, the quiet end of vacuum interrupter 11 respectively with two one side electric connection of keeping apart conductive tube 4, the end of moving of vacuum interrupter 11 forms the drive with circuit breaker main shaft 12 through a drive assembly 13 and is connected, the rotatory end of moving that drives vacuum interrupter 11 that passes through drive assembly 13 of circuit breaker main shaft 12 moves, realize closing/minute of vacuum interrupter 11.

According to the technical scheme, when the breaker spindle 12 rotates and drives the moving end of the vacuum arc-extinguishing chamber 11 to move through the transmission of the transmission assembly 13, the vacuum arc-extinguishing chamber 11 is closed, the double isolating switches are in a closing state at the moment, and closing and power transmission can be achieved.

An operating mechanism 14 is further arranged on one side of the rack 1, and the operating mechanism 14 is used for controlling and driving the isolation rotating shaft 2 or the breaker main shaft 12 to rotate around the axis of the isolation rotating shaft or the breaker main shaft 12 respectively, so that the opening and closing processes of the breaker are achieved.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A kind of double-disconnecting switch composite set, characterized by that: comprises that

A frame;

the isolation shell is sleeved outside the rack;

the double-isolation switch comprises two lead screws, two isolation conductive cylinders and a turbine, wherein the two isolation conductive cylinders are respectively sleeved outside the two lead screws, the end parts of the two lead screws are connected through the turbine, and the thread turning directions of the two lead screws are opposite;

the isolation rotating shaft is arranged on the rack;

the worm is arranged on the isolation rotating shaft and rotates along with the rotation of the isolation rotating shaft, the worm is in butt joint with the worm, the worm is used for driving the worm to rotate and further drive the two lead screws to rotate, and therefore the two isolation conductive cylinders on the two lead screws are driven to move in a straight line in different directions up and down, the worm and the isolation conductive cylinders are movably connected with each other, and the opening and closing of the double isolation switches are achieved.

2. The double-disconnector combiner of claim 1, wherein: one end of each of the two isolated conductive cylinders, which is close to each other, is respectively fixed with a threaded sleeve connected with the screw rod.

3. The double-disconnector combined device of claim 1, wherein: and two ends of the turbine are respectively riveted and fixed with the two screw rods through pins.

4. The double-disconnector combiner of claim 1, wherein: the end, far away from each other, of each of the two isolating conductive cylinders is provided with a nut which is used for forming movable electrical connection with the isolating case, and the nuts on the two isolating conductive cylinders are in contact with or separated from the isolating case at the same time.

5. The double-disconnector combined device of claim 1, wherein: still be provided with a vacuum circuit breaker and circuit breaker main shaft in the frame, vacuum circuit breaker includes utmost point post and sets up the vacuum interrupter in utmost point post, and vacuum interrupter's quiet end is connected with one side electrical connection of two isolation conductive cylinders respectively, and vacuum interrupter's the end of moving forms the drive with the circuit breaker main shaft through a drive assembly and is connected, and the circuit breaker main shaft is rotatory to be held the action through the transmission drive vacuum interrupter of drive assembly, realizes closing/minute of vacuum interrupter.

6. The double-disconnector combiner of claim 1, wherein: and one side of the rack is also provided with an operating mechanism which is used for controlling and driving the isolation rotating shaft or the main shaft of the circuit breaker to rotate around the axis of the isolation rotating shaft or the main shaft of the circuit breaker respectively.