CN209766313U

CN209766313U - novel outdoor isolating switch

Info

Publication number: CN209766313U
Application number: CN201920910721.4U
Authority: CN
Inventors: 曹立宏
Original assignee: Guangdong Huadian Construction Ltd By Share Ltd
Current assignee: Guangdong Huadian Construction Ltd By Share Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2019-12-10
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a novel outdoor isolator relates to the high-tension transmission field. The high-altitude balance of operating personnel is influenced easily by the fact that the torsion of a torsion spring mechanism in the prior art is large and the rotating speed of a knife switch is high. A damping sheet is arranged between the torsion spring mechanism and the switch blade, so that the swinging speed of the switch blade can be effectively reduced, and operators have sufficient reaction time and adjustment space. The slight change brings huge change to the potential safety hazard, and the torsional spring mechanism can effectively reduce the swing speed while ensuring that the torsional spring mechanism has enough torsion to the switch blade.

Description

Novel outdoor isolating switch

Technical Field

The utility model relates to a high-tension transmission field especially relates to a novel outdoor isolator.

Background

Outdoor disconnectors are generally used in transmission lines of 10kV or more and are often erected at an altitude of ten meters or more above the ground. An operator operates a kilovolt-level circuit device at a high altitude of more than ten meters, and the circuit device is always in a high-risk environment and can bring direct personal safety accidents if the circuit device is carelessly arranged or the device is slightly jumped.

The existing disconnecting switch generally comprises a first metal contact piece and a second metal contact piece which are respectively arranged on a ceramic column and are connected or disconnected through a knife switch. One end of the knife switch is hinged with the first metal contact piece, and the other end of the knife switch is buckled with the second metal contact piece through a movable buckle. A torsion spring mechanism is arranged at the hinged position and is used for applying torque force to the switch blade to swing away from the second metal contact piece all the time. When the operator releases the slipknot, the knife can swing upwards and away from the second metal contact piece under the action of the torsion spring mechanism. Because the torsion of the torsion spring mechanism is large, the rotating speed of the knife switch is high, and the high-altitude balance of operators is easily influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a novel outdoor isolating switch.

The utility model discloses a novel outdoor isolator, including setting up first metal contact piece and second metal contact piece on the ceramic pole respectively, first metal contact piece articulated a plug-in strip, the one end of plug-in strip far away from the articulated department is equipped with the slipknot and is used for with the lock joint of second metal contact piece; a torsional spring mechanism is arranged at the hinged position of the first metal contact piece and the switch blade and is used for applying torque force which is always far away from the second metal contact piece to the switch blade; a damping sheet is arranged between the torsion spring mechanism and the knife switch.

A novel outdoor isolator, its advantage lies in, after setting up the damping fin, can effectively reduce the slew velocity of plug-in strip, make operating personnel have enough abundant reaction time and adjustment space. The slight change brings huge change to the potential safety hazard, and the torsional spring mechanism can effectively reduce the swing speed while ensuring that the torsional spring mechanism has enough torsion to the switch blade. When the pressure of the torsion spring mechanism on the damping fin is properly adjusted, the gravity balance between the torsion force and the knife switch can be obtained, the random stop is realized, and the operation personnel can freely swing the angle according to the requirement.

The damping fin is of a three-layer structure, the two sides of the damping fin are metal layers, the middle of the damping fin is a rubber layer, and the rubber layer is fixedly connected with the metal layers on the two sides. The rubber layer can buffer the axial pressure between the two metal layers and the swinging movement trend at the same time, so that the switch blade swings more stably.

The end face of the metal layer, which is far away from the rubber layer, is a rough friction surface.

The surface roughness of the rough friction surface is Ra 3-Ra 10.

Drawings

Fig. 1 is a schematic structural diagram of the novel outdoor isolating switch of the present invention;

Fig. 2 is a top view of the novel outdoor disconnector;

FIG. 3 is an enlarged partial view of the hinge between the first metal contact strip and the blade;

Fig. 4 is a schematic view of the damper structure.

Reference numerals: 11-a first metal contact pad, 12-a second metal contact pad; 20-knife switch, 21-slipknot and 22-torsion spring mechanism; 30-damping sheet, 31-metal layer and 32-rubber layer.

Detailed Description

As shown in fig. 1-4, a novel outdoor isolating switch of the present invention includes a first metal contact piece 11 and a second metal contact piece 12 respectively disposed on a ceramic column, the first metal contact piece 11 is hinged to a switch blade 20, one end of the switch blade 20 away from the hinged portion is provided with a movable buckle 21 for being fastened to the second metal contact piece 12. The hinge of the first metal contact plate 11 and the blade 20 is provided with a torsion spring mechanism 22 for applying a torsion force to the blade 20 away from the second metal contact plate 12 at all times. A damper plate 30 is provided between the torsion spring mechanism 22 and the blade 20. The damping sheet 30 is a three-layer structure, the two sides are both metal layers 31, the middle is a rubber layer 32, and the rubber layer 32 is fixedly connected with the metal layers 31 at the two sides. The end face of the metal layer 31 far away from the rubber layer 32 is a rough friction surface, and the surface roughness of the rough friction surface is Ra 3-Ra 10. The rubber layer 32 may be made of insulating rubber or conductive rubber.

A novel outdoor isolator theory of operation lie in, earlier through the axial pressure who adjusts torsional spring mechanism 22 in the time of the installation, obtain suitable pressure and torsion proportion, then install in the transmission line. When the operator carries out follow-up maintenance or other circuit operation, the operator only needs to open the slipknot 21 at high altitude, and the knife switch 20 cannot be quickly popped up immediately. The operator can swing the blade 20 to a desired angle and stop it as necessary, and then perform various circuit maintenance tasks as required. In the whole working process, the switch blade 20 does not rebound or move abnormally, and the safety is very high.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. A novel outdoor isolating switch comprises a first metal contact piece (11) and a second metal contact piece (12) which are respectively arranged on a ceramic column, wherein the first metal contact piece (11) is hinged with a switch blade (20), and one end, far away from the hinged part, of the switch blade (20) is provided with a movable buckle (21) for being buckled with the second metal contact piece (12); a torsional spring mechanism (22) is arranged at the hinged position of the first metal contact piece (11) and the switch blade (20) and is used for applying torsion force which is always far away from the second metal contact piece (12) to the switch blade (20); it is characterized in that a damping sheet (30) is arranged between the torsion spring mechanism (22) and the knife switch (20).

2. A novel outdoor disconnector according to claim 1, characterized in that said damping plate (30) is a three-layer structure, both sides are metal layers (31), the middle is a rubber layer (32), and said rubber layer (32) is fixedly connected to the metal layers (31) at both sides.

3. A novel outdoor disconnector according to claim 2, characterized in that the end surface of the metal layer (31) remote from the rubber layer (32) is a rough friction surface.

4. the outdoor disconnector according to claim 3, wherein the roughness of the surface of the rough friction surface is Ra 3-Ra 10.