CN212810165U

CN212810165U - Stable form isolator

Info

Publication number: CN212810165U
Application number: CN202021396719.9U
Authority: CN
Inventors: 杨俊哲; 郑军生; 李鹤; 银少杰; 李�瑞; 杨树兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-03-26
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a stable isolating switch, relating to the technical field of electrical equipment; the device comprises a static contact, a conductive tube, a moving contact positioned at one end of the conductive tube and a stabilizing mechanism for increasing the rotation stability of the conductive tube; the stabilizing mechanism comprises an underframe positioned at the rotating end of the conductive tube, a bracket, a supporting plate, a groove and a balance spring, wherein the middle part of the bracket is rotatably connected with one end of the underframe; one end of the balance spring is connected to one end, far away from the supporting plate, of the bracket, and the other end of the balance spring is connected to one end, far away from the bracket, of the chassis. Under the effect of balance spring, the layer board is laminated on the electric conduction pipe all the time, and the electric conduction pipe is at the pivoted in-process, owing to increased a strong point, greatly increased stability.

Description

Stable form isolator

Technical Field

The utility model belongs to the technical field of electrical equipment, in particular to stable form isolator.

Background

The isolating switch is a switch device which is mainly used for isolating a power supply and switching over, communicating and cutting off a small current circuit and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have insulation distance meeting the specified requirements and obvious disconnection marks; a switching device capable of carrying current in normal loop conditions and current in abnormal conditions (e.g., short circuit) for a specified period of time when in the closed position. The high-voltage isolating switch is generally used as a high-voltage isolating switch, namely an isolating switch with rated voltage of more than 1kV, the high-voltage isolating switch has a simple working principle and structure, but has high requirements on working reliability due to large usage amount, and has large influence on the design, establishment and safe operation of a substation and a power plant. The main characteristic of the isolating switch is that it has no arc-extinguishing capability, and can only open and close the circuit under the condition of no load current.

The existing isolating switch comprises a static contact, a conductive tube and a moving contact, the conductive tube is rotated through an external driving device, so that the moving contact and the static contact are connected and disconnected, the conductive tube is generally long and is easy to shake during rotation, and the switch is unstable during operation.

Disclosure of Invention

The utility model aims at overcoming the unstable shortcoming of prior art, provide a stable form isolator.

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

a stable isolating switch comprises a static contact, a conductive tube, a moving contact positioned at one end of the conductive tube, and a stabilizing mechanism for increasing the rotation stability of the conductive tube; the stabilizing mechanism comprises an underframe positioned at the rotating end of the conductive tube, a bracket, a supporting plate, a groove and a balance spring, wherein the middle part of the bracket is rotatably connected with one end of the underframe; one end of the balance spring is connected to one end, far away from the supporting plate, of the bracket, and the other end of the balance spring is connected to one end, far away from the bracket, of the chassis. Under the effect of balance spring, the layer board is laminated on the electric conduction pipe all the time, and the electric conduction pipe is at the pivoted in-process, owing to increased a strong point, greatly increased stability.

Preferably, a bolt is arranged between the bracket and the supporting plate.

Preferably, a first supporting rod is arranged on the underframe, a second supporting rod is arranged on the bracket, one end of the balance spring is connected to the first supporting rod, and the other end of the balance spring is connected to the second supporting rod.

Preferably, one end of the underframe, which is close to the bracket, is penetrated by a rotating shaft, and the rotating shaft penetrates through the bracket and is rotatably connected with the bracket.

Preferably, the bracket comprises two rotating frames and a connecting plate positioned between the rotating frames, and two ends of the connecting plate are fixedly connected with the corresponding ends of the rotating frames on two sides of the connecting plate.

Preferably, the second support rod is positioned between the rotating frames, and the end part of the second support rod is fixedly connected with one end of the rotating frame, which is far away from the connecting plate.

Preferably, an embedded groove is formed in the connecting plate, the end portion of the supporting plate is located in the embedded groove, a cover plate is arranged on the upper cover of the embedded groove, the bolt penetrates through the cover plate and the supporting plate to be in threaded fit with the connecting plate, a gap is formed between the side wall of the embedded groove and the bracket, and rubber is filled in the gap.

The utility model has the advantages that: the utility model provides a stable form isolator. Under the effect of balance spring, the layer board is laminated on the electric conduction pipe all the time, and the electric conduction pipe is at the pivoted in-process, owing to increased a strong point, greatly increased stability.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the connection between the bracket and the pallet;

fig. 3 is a sectional view a-a of fig. 2.

In the figure: the device comprises a static contact 1, a conductive tube 2, a movable contact 3, an underframe 4, a bracket 5, a supporting plate 6, a groove 7, a balance spring 8, a first supporting rod 9, a second supporting rod 10, a rotating shaft 11, a rotating frame 12, a connecting plate 13, an embedded groove 14, a cover plate 15, a gap 16, rubber 17 and a bolt 18.

Detailed Description

The invention will be further explained in detail with reference to the drawings and the following detailed description:

example (b):

referring to fig. 1 to 3, a stable isolating switch includes a static contact 1, a conductive tube 2, a moving contact 3 located at one end of the conductive tube 2, and a stabilizing mechanism for increasing the rotational stability of the conductive tube 2;

the stabilizing mechanism comprises an underframe 4 positioned at the rotating end of the conductive tube 2, a bracket 5, a supporting plate 6, a groove 7 and a balance spring 8, wherein the middle part of the bracket 5 is rotatably connected with one end of the underframe 4;

one end of a balance spring 8 is connected to one end, far away from the supporting plate 6, of the bracket 5, and the other end of the balance spring 8 is connected to one end, far away from the bracket 5, of the bottom frame 4.

Bolts 18 are provided between the bracket 5 and the pallet 6.

Be equipped with first bracing piece 9 on the chassis 4, be equipped with second bracing piece 10 on the bracket 5, 8 one ends of balance spring are connected on first bracing piece 9, the 8 other ends of balance spring are connected on second bracing piece 10.

One end of the chassis 4 close to the bracket 5 is penetrated with a rotating shaft 11, and the rotating shaft 11 penetrates through the bracket 5 and is rotationally connected with the bracket 5.

The bracket 5 comprises two rotating frames 12 and a connecting plate 13 positioned between the rotating frames 12, and two ends of the connecting plate 13 are fixedly connected with corresponding ends of the rotating frames 12 on two sides of the connecting plate 13.

The second support rod 10 is located between the rotating frames 12, and the end of the second support rod 10 is fixedly connected with one end of the rotating frame 12 far away from the connecting plate 13.

An embedded groove 14 is formed in the connecting plate 13, the end portion of the supporting plate 6 is located in the embedded groove 14, a cover plate 15 is arranged on the embedded groove 14 in a covering mode, the bolt 18 penetrates through the cover plate 15 and the supporting plate 6 to be in threaded fit with the connecting plate 13, a gap 16 is formed between the side wall of the embedded groove 14 and the bracket 5, and rubber 17 is filled in the gap 16.

Principle of embodiment:

under the effect of balance spring 8's the axial force, layer board 6 and contact tube paste tightly all the time to guarantee that the contact tube is located recess 7 all the time, thereby realize spacingly, in addition, the contact tube is when the pivoted, because layer board 6 supports on the contact tube all the time, thereby has reduced rocking of contact tube greatly, thereby has improved stability greatly.

In the switch that relapses, there is great moment of torsion in the junction between layer board 6 and the bracket 5, in order to prevent not hard up, embedded groove 14 has been set up, connect through a plurality of bolts 18, then fill rubber 17 between the lateral wall of embedded groove 14 and layer board 6, the material of rubber 17 is soft, when apron 15 lid is established on embedded groove 14, apron 15 can extrude rubber 17, rubber 17 exerts pressure to the lateral wall of embedded groove 14 and layer board 6, in the in-service use, rubber 17 has played fine cushioning effect, be difficult to not hard up between layer board 6 and the bracket 5.

Claims

1. A stable isolating switch comprises a static contact, a conductive tube and a moving contact positioned at one end of the conductive tube, and is characterized by comprising a stabilizing mechanism for increasing the rotation stability of the conductive tube;

the stabilizing mechanism comprises an underframe positioned at the rotating end of the conductive tube, a bracket, a supporting plate, a groove and a balance spring, wherein the middle part of the bracket is rotatably connected with one end of the underframe;

one end of the balance spring is connected to one end, far away from the supporting plate, of the bracket, and the other end of the balance spring is connected to one end, far away from the bracket, of the chassis.

2. The stable isolator of claim 1, wherein a bolt is disposed between the bracket and the plate.

3. The stable isolator of claim 2, wherein a first support bar is disposed on said bottom bracket, a second support bar is disposed on said bracket, one end of said counter spring is connected to said first support bar, and the other end of said counter spring is connected to said second support bar.

4. The stable isolator of claim 1, wherein a pivot shaft extends through an end of the chassis adjacent to the bracket, the pivot shaft extending through the bracket and being pivotally connected to the bracket.

5. The stable isolator of claim 3, wherein said bracket comprises two rotating frames and a connecting plate between said rotating frames, and two ends of said connecting plate are fixedly connected to corresponding ends of said rotating frames.

6. The stable isolator of claim 5, wherein the second support bar is located between the rotating frames, and the end of the second support bar is fixedly connected to the end of the rotating frame away from the connecting plate.

7. The stable type isolation switch of claim 6, wherein the connection plate is provided with an insertion groove, the end of the support plate is located in the insertion groove, the insertion groove is covered by a cover plate, the bolt passes through the cover plate, the support plate and the connection plate, the bolt is in threaded fit with the connection plate, a gap is formed between the side wall of the insertion groove and the bracket, and the gap is filled with rubber.