CN214378179U - Static contact for high-voltage isolating switch - Google Patents

Abstract

The utility model discloses a static contact for high voltage isolator, it includes the bottom plate, and the top fixed mounting of bottom plate has touch seat, touches the top of seat and has seted up the spout, and the inside sliding connection of spout has two sliders, and the equal fixed mounting in top of two sliders touches the finger, and the both sides cell wall of spout rotates and is connected with positive and negative lead screw, the both ends of positive and negative lead screw and the middle part threaded connection who corresponds the slider, and the end department at positive and negative lead screw both ends passes the spout and all rotates and be connected with the hexagonal knob. The utility model discloses a rotation of positive and negative lead screw is driven in the rotation of hexagonal knob, the rotation through positive and negative lead screw drives the closure of two sliders, and the closure through the slider drives and touches the closure that indicates, makes to touch indicate and be connected the abundant contact of contact, guarantees the stability of contact, touches the U type piece that the finger side was equipped with through two, and U type piece and touch carry on spacingly through spacing spring between indicating, are convenient for carry on spacing fixedly through U type piece to connecting the contact, further reduce to touch the separation of indicating and contact.

Description

Static contact for high-voltage isolating switch

Technical Field

The utility model belongs to the technical field of high voltage isolator, in particular to static contact for high voltage isolator.

Background

The high-voltage isolating switch is an important switching device in an electric system of a power plant and a transformer substation and needs to be matched with a high-voltage circuit breaker for use. The isolating switch is suitable for indoor devices with three-phase alternating current of 50Hz and rated voltage of 12 KV. The main functions of the device are to switch on, off or change over the line under the condition of voltage and load of high-voltage equipment: 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, inputting 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.

In the use process of the static contact of the existing high-voltage isolating switch, because no limiting mechanism exists, the phenomenon that a contact finger of the static contact is not in contact with a connecting contact is easily caused, and the service life of the static contact is influenced, so that the static contact for the high-voltage isolating switch needs to be designed.

Disclosure of Invention

An object of the utility model is to provide a static contact for high voltage isolator to the static contact of the present high voltage isolator who proposes in solving above-mentioned background art is at the in-process that uses, owing to do not have stop gear, causes electrostatic contact's the contact to indicate and connect the contact contactless phenomenon easily, influences electrostatic contact's life's problem.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a static contact for high voltage isolator, includes the bottom plate, the top fixed mounting of bottom plate touches the seat, touch the top of seat and seted up the spout, the inside sliding connection of spout has two sliders, two the equal fixed mounting in top of slider touches the finger, the both sides cell wall of spout rotates and is connected with positive and negative lead screw, the both ends of positive and negative lead screw with correspond the middle part threaded connection of slider, the end department at positive and negative lead screw both ends passes the spout and all rotates and is connected with hexagonal knob, two the equal swing joint who touches one side of finger has U type piece, U type piece with touch and to install spacing spring between the finger.

In the static contact for the high-voltage isolating switch, the middle part of the contact base is provided with the through groove, the top end inside the through groove is fixedly provided with the connecting sheet, four corners of the top end of the contact base are fixedly provided with the rectangular blocks, the four rectangular blocks are fixedly connected with the connecting sheet, and the top ends of the four rectangular blocks are fixedly provided with the buffer contact sheet.

In the static contact for the high-voltage isolating switch, the top and the bottom of one side of the contact finger are both provided with a T-shaped groove, the two T-shaped grooves at the same height are alternately connected with the two ends of the U-shaped block, and the two ends of the U-shaped block are both fixedly provided with a limiting plate.

In the static contact for the high-voltage isolating switch, the size of the limiting plate is matched with the inner diameter of the T-shaped groove.

In the static contact for the high-voltage isolating switch, chamfers are arranged on two sides of the top end of each of the two contact fingers.

In the static contact for the high-voltage isolating switch, the two corners of the bottom of the two sides of the contact base are respectively fixedly provided with the fixed sheets, and the four fixed sheets are fixedly connected with the bottom plate through screws.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this static contact for high voltage isolator drives the rotation of positive and negative lead screw through the rotation of hexagonal knob, drives the closure of two sliders through the rotation of positive and negative lead screw, drives the closure of touching the finger through the closure of slider, makes to touch the finger and connect the abundant contact of contact, guarantees the stability of contact.

2. This static contact for high voltage isolator touches U type piece that the finger side was equipped with through two, and U type piece and touch carry on spacingly through spacing spring between the finger, are convenient for carry on spacingly fixedly to connecting contact through U type piece, and further reduction touches the separation of finger and contact.

Drawings

Fig. 1 is a schematic structural diagram of a static contact for a high-voltage isolating switch.

Fig. 2 is a schematic cross-sectional structure view of a static contact for a high-voltage isolating switch.

Fig. 3 is a schematic structural diagram of a contact finger and a U-shaped block in a static contact for a high-voltage isolating switch.

In the figure: 1. a base plate; 2. a contact base; 3. a fixing sheet; 4. a positive and negative screw rod; 5. a hexagonal knob; 6. a contact finger; 7. a rectangular block; 8. a buffer contact; 9. a chute; 10. a U-shaped block; 11. a T-shaped groove; 12. a limiting spring; 13. connecting sheets; 14. a slider; 15. and a limiting plate.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, fig. 2 and fig. 3, this static contact for high-voltage isolating switch includes a bottom plate 1, top fixed mounting of bottom plate 1 has touch seat 2, touch seat 2's top has seted up spout 9, the inside sliding connection of spout 9 has two sliders 14, the equal fixed mounting in top of two sliders 14 has touch finger 6, the both sides cell wall of spout 9 rotates and is connected with positive and negative lead screw 4, the both ends of positive and negative lead screw 4 and the middle part threaded connection who corresponds slider 14, the end department at positive and negative lead screw 4 both ends passes spout 9 and all rotates and is connected with hexagonal knob 5, the equal swing joint who touches finger 6 one side for two has U type piece 10, U type piece 10 and touch finger 6 between install limiting spring 12, extrude U type piece 10 through limiting spring 12, carry on spacingly through U type piece 10 to connecting contact, guarantee to touch finger 6 and connecting contact abundant contact.

In more detail, a through groove is formed in the middle of the contact seat 2, a connecting sheet 13 is fixedly mounted at the top end inside the through groove, four corners of the top end of the contact seat 2 are respectively and fixedly provided with a rectangular block 7, the four rectangular blocks 7 are fixedly connected with the connecting sheet 13, the top ends of the four rectangular blocks 7 are respectively and fixedly provided with a buffering contact sheet 8, the buffering contact sheets 8 have better buffering effect, the top and the bottom of one side of each contact finger 6 are respectively provided with a T-shaped groove 11, two T-shaped grooves 11 at the same height are connected with two ends of a U-shaped block 10 in an inserting manner, two ends of each U-shaped block 10 are respectively and fixedly provided with a limiting plate 15, the size of each limiting plate 15 is matched with the inner diameter of each T-shaped groove 11, the limiting plates 15 are fixedly connected with the end of each U-shaped block 10, the U-shaped blocks 10 are effectively prevented from being separated from each other, two sides of the top ends of the two contact fingers 6 are respectively provided with chamfers, and the connecting contacts can be conveniently and rapidly inserted between the two contact fingers 6 through the chamfers, touch both sides angle department of 2 both sides bottoms of seat and all fix and be equipped with stationary blade 3, pass through screw fixed connection between four stationary blades 3 and the bottom plate 1, be convenient for touch the fixed of seat 2.

When this static contact for high voltage isolator uses, at first will link the contact head to inlay and establish to two and touch between the finger 6, then rotate hexagonal knob 5, the rotation through hexagonal knob 5 drives the rotation of positive and negative lead screw 4, it is closed to drive two sliders 14 through the rotation of positive and negative lead screw 4, it is closed to move two through slider 14 and drive two and touch and indicate 6, make touch and indicate 6 abundant and connection contact, U type piece 10 through touching 6 side-mounting simultaneously, U type piece 10 with touch and indicate and be provided with spacing spring 12 between 6, promote U type piece 10 through the thrust of spacing spring 12, be convenient for spacing connection contact, guarantee the stability of contact.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (6)

1. A static contact for a high-voltage isolating switch comprises a base plate (1) and is characterized in that, a contact seat (2) is fixedly arranged at the top end of the bottom plate (1), a sliding groove (9) is arranged at the top end of the contact seat (2), two sliding blocks (14) are connected inside the sliding groove (9) in a sliding manner, the top ends of the two sliding blocks (14) are fixedly provided with contact fingers (6), the groove walls at the two sides of the sliding groove (9) are rotationally connected with a positive and negative screw rod (4), two ends of the positive and negative screw rods (4) are in threaded connection with the middle parts of the corresponding sliding blocks (14), the ends of the two ends of the positive and negative screw rods (4) penetrate through the sliding grooves (9) and are respectively and rotatably connected with a hexagonal knob (5), one side of each of the two contact fingers (6) is respectively and movably connected with a U-shaped block (10), and a limiting spring (12) is arranged between the U-shaped block (10) and the contact finger (6).

2. The static contact for the high-voltage isolating switch as claimed in claim 1, wherein: the middle part of touching seat (2) has been seted up and has been led to the groove, the top fixed mounting who leads to inslot portion has connection piece (13), four edges on touching seat (2) top all fix and are equipped with rectangular block (7), four rectangular block (7) and connection piece (13) fixed connection, four the top of rectangular block (7) all is fixed and is equipped with buffering contact (8).

3. The static contact for the high-voltage isolating switch as claimed in claim 1, wherein: t type groove (11) have all been seted up to touch finger (6) one side top and bottom, are located two of same height the both ends of T type groove (11) and U type piece (10) alternate and are connected, the equal fixed mounting in both ends of U type piece (10) has limiting plate (15).

4. The static contact for the high-voltage isolating switch as claimed in claim 3, wherein: the size of the limiting plate (15) is matched with the inner diameter of the T-shaped groove (11).

5. The static contact for the high-voltage isolating switch as claimed in claim 1, wherein: chamfers are arranged on two sides of the top ends of the two contact fingers (6).

6. The static contact for the high-voltage isolating switch as claimed in claim 1, wherein: touch both sides angle department of seat (2) both sides bottom and all fixedly be equipped with stationary blade (3), four through screw fixed connection between stationary blade (3) and bottom plate (1).

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