CN210692414U

CN210692414U - 220kV alternating-current disconnecting link limiting contact fixing structure

Info

Publication number: CN210692414U
Application number: CN201922365625.9U
Authority: CN
Inventors: 何文; 廖青松; 郭建强; 雍桅; 刘贵林
Original assignee: Meishan Aostar Aluminum Co ltd
Current assignee: Meishan Aostar Aluminum Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-06-05
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a spacing contact fixed knot of 220kV alternating-current disconnecting link constructs, the on-line screen storage device comprises an installation base, first insulating pillar, the second insulating pillar, first wiring board, the second wiring board, the disconnecting link, locking mechanism, spacing pin and limit nut, at spacing supporting shoe, the spacing hole of dysmorphism, a spring, under the effect of slider and deflector, slide to the section of sliding the leftmost side when the slider, just in time satisfy the requirement of the angle of opening the floodgate, the effect of buffering can be played to the spring in this process, avoid appearing because the condition that operating personnel operated the head and interrupted spacing pin, the normal use of spacing contact fixed knot structure has been guaranteed, and then the possibility that the incident takes place has been reduced, reduce the maintenance work volume in workshop, reduce the spoilage of equipment.

Description

220kV alternating-current disconnecting link limiting contact fixing structure

Technical Field

The utility model relates to a power equipment technical field especially relates to 220kV exchanges spacing contact fixed knot of switch and constructs.

Background

The knife switch is one kind of manual switch for power equipment, and is used in low voltage power equipment and is divided into single-phase knife switch and three-phase knife switch. Various specifications exist according to different applications, generally, voltage and current are marked, such as 220V, 16A, which means that the voltage is suitable for 220V, and the current does not exceed 16 amperes. Generally, the fuse box comprises a porcelain base, a plastic cover and a copper piece, wherein the upper part of the porcelain base is a wire inlet, the lower part of the porcelain base is a wire outlet, and a fuse mounting part is designed in the middle of the porcelain base.

In the existing 220kV alternating-current disconnecting link, in the switching operation process, as the situation that an operator often operates in place or operates over the head occurs, a limit pin of the disconnecting link is interrupted, and serious potential safety hazards exist; or the situation that the limit contact fixing structure is deformed after the disconnecting link is operated for many times and cannot play a limiting role appears.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spacing contact fixed knot of 220kV interchange switch constructs to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a220 kV alternating-current disconnecting link limiting contact fixing structure comprises an installation base, a first insulating support, a second insulating support, a first wiring board, a second wiring board, a disconnecting link, a locking mechanism, a limiting pin and a limiting nut, wherein the first insulating support and the second insulating support are arranged on the installation base, the first wiring board is arranged at the top of the first insulating support, the second wiring board is arranged at the top of the second insulating support, a limiting supporting block is arranged at the top of the first wiring board, the disconnecting link is rotatably connected with the limiting supporting block, the locking mechanism is arranged on one side, close to the second insulating support, of the disconnecting link, the locking mechanism is matched with the second wiring board, a plurality of special-shaped limiting holes are formed in the limiting supporting block, each special-shaped limiting hole comprises a telescopic section, a sliding section and a semicircular installation section, a spring is arranged in the telescopic section, a sliding block is slidably installed in the sliding section, two ends of the spring are respectively connected with the inner wall of the, be provided with the semicircle recess on the slider, the confined round hole is constituteed to semicircle recess and semicircle installation section, and the round hole matches with spacing pin and sets up, the section of sliding is greater than the round hole diameter and is greater than the length of flexible section along first insulation post axial direction along the length of first insulation post axial direction along first insulation post axial direction.

The cross-sectional shape of the limiting support block is U-shaped, the middle of the limiting support block is communicated with a plurality of mounting holes, and the special-shaped limiting holes are symmetrically arranged on two sides of the limiting support block relative to the length direction of the mounting base.

An extension plate is further arranged on one side, close to the second wiring board, of the first wiring board, and a guide plate is arranged on the top of the extension plate.

The top of the guide plate is an arc surface and is matched with the disconnecting link.

The utility model has the advantages that:

at spacing supporting shoe, the spacing hole of dysmorphism, a spring, under the effect of slider and deflector, when the slider slides to the section of sliding leftmost side, just in time satisfy the requirement of angle of opening the floodgate, the effect of buffering can be played to the spring at this in-process, avoid because the operating personnel operates the condition appearance that the head breaks spacing pin, the normal use of spacing contact fixed knot structure has been guaranteed, and then the possibility that the incident takes place has been reduced, reduce the maintenance work volume in workshop, reduce the spoilage of equipment.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic structural view of a special-shaped limiting hole of the present invention;

FIG. 4 is a schematic view of the assembly structure of the middle limit pin of the present invention;

fig. 5 is a schematic structural view of the middle guide plate of the present invention.

In the figure, a mounting base 1, a first insulating support column 2, a second insulating support column 3, a first wiring board 4, a second wiring board 5, a disconnecting link 6, a locking mechanism 7, an extension plate 8, a guide plate 9, a limiting support block 10, a special-shaped limiting hole 11, a telescopic section 12, a sliding section 13, a semicircular mounting section 14, a spring 15, a sliding block 16, a limiting pin 17, a limiting nut 18 and a mounting hole 19 are arranged.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

Please refer to fig. 1-5, an embodiment of the present invention provides a 220kV ac disconnecting link limiting contact fixing structure, including an installation base 1, a first insulating pillar 2, a second insulating pillar 3, a first wiring board 4, a second wiring board 5, a disconnecting link 6, a locking mechanism 7, a limiting pin 17 and a limiting nut 18, the first insulating pillar 2 and the second insulating pillar 3 pass through a screw on the installation base 1, and a plurality of installation holes are opened on the installation base 1 for adjusting the installation positions of the first insulating pillar 2 and the second insulating pillar 3.

First wiring board 4 passes through screw fixed mounting at 2 tops of first insulation post, and second wiring board 5 passes through screw fixed mounting at 3 tops of second insulation post, and 4 tops of first wiring board are provided with limit support block 10, the cross sectional shape of limit support block 10 is the U type, and the lead to has a plurality of mounting holes 19 at the middle part of limit support block 10, and limit support block 10 passes mounting hole 19 and passes first wiring board 4 fixed mounting on first insulation post 2 through the screw, the spacing hole 11 of dysmorphism sets up in limit support block 10 both sides about 1 length direction symmetry of installation base, refers to figure 2, the utility model discloses be provided with two sets of spacing holes 11 of dysmorphism, correspond respectively and open a floodgate angle 90 and 160.

The disconnecting link 6 is rotatably connected with the limiting support block 10, a locking mechanism 7 is arranged on one side, close to the second insulating support column 3, of the disconnecting link 6, the locking mechanism 7 is arranged in a matched mode with the second wiring board 5, the locking mechanism 7 and the second wiring board 5 are matched in a conventional structure known by a person skilled in the art, such as a hook board, a clamping board movably connected to the hook board and a reset spring, and the hook on the clamping board is matched with a buckling hole formed in the second wiring board 5 to achieve matched connection during closing.

Spacing hole 11 of dysmorphism includes flexible section 12, sliding section 13 and semicircle installation section 14, is provided with spring 15 in the flexible section 12, and slidable mounting has slider 16 in the sliding section 13, and the axis that spring 15 both ends respectively with

slider

16 and 13 inner wall connections of sliding section and spring 15 is unanimous with slider 16 sliding direction, is provided with the semicircle recess on the slider 16, and confined round hole is constituteed with semicircle installation section 14 to semicircle recess, and the round hole matches the setting with stop pin 17, sliding section 13 is greater than the round hole diameter and is greater than flexible section 12 along the length of 2 axial directions of first insulating support.

The first wiring board 4 is close to 5 one sides of second wiring board and still is provided with extension plate 8, and the extension plate 8 top is provided with deflector 9, and the setting is just matchd with switch 6 for the cambered surface in deflector 9 top for the traffic direction of switch 6 guides when closing a floodgate, avoids the normal orbit of closing a floodgate of switch 6 skew.

The working principle is as follows:

if the requirement of the opening angle is 90 degrees, referring to fig. 2 and 3, a limit pin 17 is inserted into the special-shaped limit hole 11 at the upper part, and a limit nut 18 is screwed into the tail end of the limit pin 17 until the limit nut 18 contacts with the side surface of the limit support block 10, when an operator performs switching operation, the knife switch 6 after switching off is rotated to be close to 90 degrees and firstly contacts with the end part of the limit pin 17 and the end part of the limit nut 18, the limit pin 17 can drive the sliding block 16 to slide in the sliding section 13, when the sliding block 16 slides to the leftmost side of the sliding section 13, the requirement of the opening angle of 90 degrees is just met, the spring 15 can play a role in buffering in the process, the situation that the limit pin 17 is broken due to the operation of the operator is avoided, the normal use of the limit contact fixing structure is ensured, and the possibility of safety accidents is further reduced.

When the opening angle needs to be adjusted, if the adjustment is 160 degrees, the mounted limit pin 17 and the limit nut 18 are detached, at this time, the sliding block 16 is reset under the action of the spring 15 and slides to the rightmost side of the sliding section 13 to form a closed round hole again, so that the next installation of the limit pin 17 is facilitated (meanwhile, a buffering stage exists again).

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

A1.220 kV alternating-current disconnecting link limiting contact fixing structure comprises an installation base (1), a first insulating support column (2), a second insulating support column (3), a first wiring board (4), a second wiring board (5), a disconnecting link (6), a locking mechanism (7), a limiting pin (17) and a limiting nut (18), wherein the first insulating support column (2) and the second insulating support column (3) are arranged on the installation base (1), the first wiring board (4) is arranged at the top of the first insulating support column (2), the second wiring board (5) is arranged at the top of the second insulating support column (3), the top of the first wiring board (4) is provided with a limiting support block (10), the disconnecting link (6) is rotatably connected with the limiting support block (10), one side of the disconnecting link (6), which is close to the second insulating support column (3), the locking mechanism (7) is matched with the second wiring board (5), the special-shaped limiting support is characterized in that a plurality of special-shaped limiting holes (11) are formed in the limiting support block (10), each special-shaped limiting hole (11) comprises a telescopic section (12), a sliding section (13) and a semicircle installation section (14), a spring (15) is arranged in each telescopic section (12), a sliding block (16) is arranged in each sliding section (13), two ends of each spring (15) are respectively connected with the inner wall of each sliding block (16) and the inner wall of each sliding section (13), the axial line of each spring (15) is consistent with the sliding direction of each sliding block (16), a semicircle groove is arranged on each sliding block (16), each semicircle groove and each semicircle installation section (14) form a closed round hole, each round hole is matched with a limiting pin (17), and the length of each sliding section (13) in the axial direction of the first insulating support (2) is greater than the diameter of the round hole and greater than the length of each telescopic section (12.
2. The 220kV alternating-current disconnecting link limiting contact fixing structure according to claim 1, wherein the cross-sectional shape of the limiting support block (10) is U-shaped, a plurality of mounting holes (19) are formed in the middle of the limiting support block (10), and the special-shaped limiting holes (11) are symmetrically arranged on two sides of the limiting support block (10) relative to the length direction of the mounting base (1).
3. The 220kV alternating-current disconnecting link limiting contact fixing structure according to claim 1, wherein an extension plate (8) is further arranged on one side, close to the second wiring plate (5), of the first wiring plate (4), and a guide plate (9) is arranged on the top of the extension plate (8).
4. The 220kV alternating-current disconnecting link limiting contact fixing structure according to claim 3, wherein the top of the guide plate (9) is an arc surface and is matched with the disconnecting link (6).