CN110994291A

CN110994291A - Current terminal short circuit device

Info

Publication number: CN110994291A
Application number: CN201911111803.3A
Authority: CN
Inventors: 陈飞建; 吕元双; 蒋政权; 罗鑫; 杨光; 樊国盛; 周仕新; 贾贵云; 冷贵峰; 晏维; 杨元睿; 孙江山; 胡定林; 巨彧龙; 赵菊; 王咿燃
Original assignee: Guizhou Power Grid Co Ltd
Current assignee: Guizhou Power Grid Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-04-10
Anticipated expiration: 2039-11-14
Also published as: CN110994291B

Abstract

The invention discloses a short-circuit device for current terminals, which is characterized in that when each group of current terminals needs to be short-circuited, a short-circuit plug is connected with the current terminals, a button corresponding to the current terminal to be switched on is pressed, a first rod section is driven to move downwards, a second rod section rotates around a hinge point, a contact block moves to a second limit point from a first limit point along a first guide section, a connecting plate is switched on with a conductive block, and each connecting plate can introduce the introduced current into the conductive block to realize short-circuit. The insulating seat has certain length, makes the distance increase between staff and the current terminal, and the security is better, and the short circuit plug set up the position and correspond with the position of current terminal, presses the button and can accomplish the short circuit of each current terminal, and operation process is simple relatively, and the work load is less, and work efficiency is high.

Description

Current terminal short circuit device

Technical Field

The invention relates to the technical field of electric power overhaul, in particular to a short-circuit device for a current terminal.

Background

In the process of servicing secondary equipment of an electrical power system, each set of live current terminals may need to be shorted to ensure that no current flows into the secondary equipment, and then the contact block connecting the equipment side and the power supply side may be disconnected to completely isolate the equipment side from the power supply side for inspection of the equipment using an inspection instrument. In the prior art, the short circuit of the secondary winding under the conditions of open circuit and no fault of the secondary winding mainly adopts a simple self-made short circuit wire or a special short circuit wire to carry out manual short circuit on A, B, C-phase terminals and N terminals of a current loop, and workers and terminal rows operate at a distance of almost zero, so that the operation is relatively dangerous. When the secondary equipment can be disconnected only by short-circuiting a plurality of groups of current terminals at the same time, the operation process is relatively complicated, the workload is large, and the working efficiency is low.

Disclosure of Invention

In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a current terminal shorting device.

In order to overcome the defects of the prior art, the technical scheme provided by the invention is as follows:

the invention provides a short-circuit device of a current terminal, which is characterized by comprising an insulating seat, a conductive block, a plurality of connecting plates and a plurality of short-circuit plugs, wherein the short-circuit plugs are arranged in jacks on the side surfaces of the insulating seat;

a guide groove is formed in the insulating seat portion between the conductive block and the connecting plate, an installation cavity is formed above the guide groove, a button is elastically installed in the installation cavity, a connecting rod is arranged at the lower end of the button, a contact block is arranged at the end of the connecting rod and is arranged in the guide groove, the connecting rod comprises a first rod section and a second rod section which are sequentially hinged, and the hinge point is arranged between the installation cavity and the guide groove;

the guide way is eccentric heart shape, has first spacing point and the second spacing point that distributes from top to bottom, and the both sides of first spacing point and second spacing point are first guide section and second guide section respectively, press during the button, the contact block can be followed first guide section removes to the second spacing point will the connecting plate with the conducting block switch-on, or follow the second guide section removes to first spacing point will the connecting plate with the conducting block disconnection.

Compared with the prior art, the invention has the beneficial effects that:

when each group of current terminals needs to be short-circuited, the short-circuit plug is connected with the current terminals, the button corresponding to the current terminal needing to be connected is pressed, the first rod section is driven to move downwards, the second rod section rotates around the hinge point, the contact block moves from the first limit point to the second limit point along the first guide section, the connecting plates are connected with the conductive blocks, and the connecting plates can introduce the introduced current into the conductive blocks to realize short-circuit. The insulating seat has certain length, makes the distance increase between staff and the current terminal, and the security is better, and the short circuit plug set up the position and correspond with the position of current terminal, presses the button and can accomplish the short circuit of each current terminal, and operation process is simple relatively, and the work load is less, and work efficiency is high.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a perspective view of a current terminal shorting device according to an embodiment of the present invention;

fig. 2 is an internal structure diagram of a current terminal shorting device according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a current terminal shorting device provided by an embodiment of the present invention;

FIG. 4 is a partial enlarged view of portion A of FIG. 3;

FIG. 5 is a perspective view of a marker device provided in accordance with an embodiment of the present invention;

FIG. 6 is a perspective view of the label base of FIG. 5;

FIG. 7 is a perspective view of the mounting slot of FIG. 6;

fig. 8 is a perspective view of the wedge block of fig. 6.

In the figure: 1-insulating seat, 11-socket, 12-guide groove, 121-first limit point, 122-second limit point, 13-mounting cavity, 2-conducting block, 21-second contact piece, 3-connecting plate, 31-first contact piece, 4-short plug, 5-button, 51-mounting seat, 52-cap, 6-connecting rod, 61-first rod section, 62-second rod section, 7-contact block, 8-identification device, 81-identification base, 811-identification area, 812-mounting groove, 8121-limit portion, 82-shielding cover, 821-transparent area, 822-wedge groove, 83-wedge block, 831-limit boss and 9-insulating handle.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As mentioned in the background, during the servicing of the secondary equipment of the power system, it may be necessary to short each set of live current terminals to ensure that no current flows into the secondary equipment, and then the contact blocks connecting the equipment side and the power supply side may be disconnected to completely isolate the equipment side from the power supply side for the purpose of using the inspection instrument to inspect the equipment. In the prior art, the short circuit of the secondary winding under the conditions of open circuit and no fault of the secondary winding mainly adopts a simple self-made short circuit wire or a special short circuit wire to carry out manual short circuit on A, B, C-phase terminals and N terminals of a current loop, and workers and terminal rows operate at a distance of almost zero, so that the operation is relatively dangerous. When the secondary equipment can be disconnected only by short-circuiting a plurality of groups of current terminals at the same time, the operation process is relatively complicated, the workload is large, and the working efficiency is low.

Therefore, when how to improve short circuit operation process installation performance, simplify work working process, reduce work load, improve work efficiency and will become the improvement direction of this application, the design of this application is to set up electrically conductive seat and a plurality of short circuit plug interval in insulating seat, establish the contact block between every short circuit plug and conducting block, connect short circuit plug and conducting block through the contact block and realize switching on, put through the short circuit plug more than two simultaneously with the conducting block and accomplish the short circuit, consequently, provide a current terminal short circuit device.

Referring to fig. 1 to 4, a specific structure of the current terminal shorting device of the present embodiment is shown. The device includes insulating seat 1, conducting block 2, a plurality of connecting plate 3 and a plurality of short circuit plug 4, short circuit plug 4 is located in the socket 11 of insulating seat 1 side, short circuit plug 4 detachable locates in the socket 11 of insulating seat 1 side, short circuit plug 4 is equipped with elasticity anti-skidding gasket with the position of socket 11 contact.

The device further comprises an insulating handle 9 connected with the insulating base 1, and the length extending direction of the insulating handle 9 is the same as that of the short-circuit plug 4. The conductive block 2 and the connecting plate 3 are arranged in the insulating seat 1 at intervals, the insulating seat 1 is a plastic insulating seat 1, and the conductive block 2 and the connecting plate 3 are respectively connected with the insulating seat 1 in an injection molding mode.

The conductive block 2 and the connecting plate 3 are arranged in the insulating base 1 at intervals, and the connecting plate 3 is in contact with the short-circuit plug 4. Specifically, the connecting plate 3 has two side surfaces, namely a first surface and a second surface, the first surface is in contact with the shorting plug 4, and the second surface is opposite to the connecting plate 3. Be equipped with contact block 7 between every connecting plate 3 and the conducting block 2, connect connecting plate 3 and conducting block 2 through contact block 7, realize current terminal and conducting block 2 switch-on through short circuit plug 4.

The conducting block 2 and the connecting plate 3 form a gap, a guide groove 12 is arranged on the insulating base 1 in the gap, one end of the guide groove 12 is positioned in the gap, and the other end of the guide groove 12 is positioned above the gap. 12 tops of guide way are equipped with installation cavity 13, be equipped with button 5 in the

installation cavity

13, 5 lower extremes of button are equipped with connecting rod 6, and in 5 resilient mounting of button and the installation cavity 13, specifically for setting up first spring housing outside connecting rod 6, spring one end and the contact of button 5, the other end and the contact of installation cavity 13 bottom. The end part of the connecting rod 6 is provided with a contact block 7, the contact block 7 is arranged in the guide groove 12, and the contact block 7 is driven to move along the guide groove 12 by driving the connecting rod.

The guide groove 12 may be a curved guide groove, preferably, the guide groove 12 is eccentric center-shaped, and has a first limit point 121 and a second limit point 122 distributed up and down, the first limit point 121 and the second limit point 122 are respectively provided at two sides thereof with a first guide section and a second guide section, the link 6 is configured to include a first rod section 61 and a second rod section 62 hinged in sequence, when the button 5 drives the first rod section 61 to move down, the second rod section 62 can rotate around the hinge point, so that the contact block 7 moves from the first limit point 121 to the second limit point 122 along the first guide section, or the contact block 7 moves from the second limit point 122 to the first limit point 121 along the second guide section. In order to prevent the spring from interfering with the rotation of the second rod section 62, the hinge point is provided between the mounting chamber 13 and the guide groove 12.

The distance between the connecting plate 3 and the conductive block 2 at the first limit point 121 is smaller than the length of the contact block 7, and the distance between the connecting plate 3 and the conductive block 2 at the second limit point 122 is larger than the length of the contact block 7, so that the connecting plate 3 and the conductive block 2 are connected when the contact block 7 moves to the second limit point 122, and the connecting plate 3 and the conductive block 2 are disconnected when the contact block 7 moves to the first limit point 121. Can all set up the guiding track by connecting plate 3, conducting block 2 and insulating seat 1, three guiding track overlaps and constitutes guide way 12, locates in the guiding track of insulating seat 1 the middle part of guide way 12, and both ends stretch into respectively in the guiding track of connecting plate 3 and conducting block 2, first limit point 121 the depth of connecting plate 3 with the guiding track of conducting block 2 is greater than second limit point 122 the depth of connecting plate 3 with the guiding track between the conducting block 2.

However, the above-mentioned arrangement is complicated and difficult to process, so it is preferable that a first contact piece 31 is provided on the second surface of the connecting plate 3, a second contact piece 21 is provided on a surface of the conductive block 2 opposite to the second surface, the first contact piece 31 and the second contact piece 21 are in the same straight line to form a contact gap, the first limit point 121 and the second limit point 122 are respectively located above and below the contact gap, and when the push button 5 is pressed, the contact block 7 can move along the first guide section to the second limit point 122 to conduct the first contact piece 31 and the second contact piece 21, or move to the first limit point 121 to disconnect the first contact piece 31 and the second contact piece 21.

The guide groove 12 can also be a linear guide groove, when a linear groove is adopted, the conduction is completed when the contact block 7 of the button 5 is pressed to move from the upper part of the gap to the gap, the contact block 7 can be an elastic structure, and when the contact block 7 slides to the gap, the two ends are popped up to be respectively pressed with the connecting plate 3 and the conducting block 2.

The button 5 comprises a mounting seat 51 and a cap 52, the mounting body is provided with a color mark, the cap 52 is transparent, the cap 52 is slidably mounted in the mounting seat 51, and when the cap 52 slides into the mounting seat 51, the cap 52 displays the same color as the mounting body. For example: establish mount pad 51 to red, cap 52 slides extremely show red when in the mount pad 51, and through the colour of observing cap 52, operating personnel can know which short circuit plug 4 switches on, need not to set up electrified pilot lamp, and the design is simple, and saves the electric energy.

Referring to fig. 5 to 8, the device further includes a marking device 8, the marking device 8 includes a circular marking base 81 and a hemispherical shielding cover 82, the marking base 81 is provided with a plurality of marking areas 811 along a circumference, the plurality of marking areas 811 are divided into a plurality of different types, two adjacent marking areas 811 are different in type, the shielding cover 82 is provided with a transparent area 821 corresponding to one marking area 811, and the shielding cover 82 can rotate relative to the marking base 81 to make the transparent area 821 coincide with one marking area 811.

For example: the plurality of identification areas 811 are divided into two different types, the plurality of two different identification areas 811 are distributed on the identification base 81 in a staggered manner along the circumference, the shielding cover 82 is provided with a plurality of transparent areas 821 corresponding to one type, different types of identification areas 811 can be distinguished through different colors, and when the transparent areas 821 are overlapped with the identification area 811 with one color, an operator can observe the color of the identification area 811. When needs short circuit multiunit current terminal, when the staff of different groups accomplished the operation, distinguish which current terminal short circuit device takes away the current terminal short circuit device of own group through the colour of transparent area 821, can not make mistakes.

Be equipped with mounting groove 812 on the sign base 81, the elastic pressure is equipped with wedge block 83 in the mounting groove 812, it is equipped with a plurality ofly on the lid 82 with the wedge groove 822 that wedge block 83 corresponds, wedge block 83 pushes up in the wedge groove 822, rotates when sheltering from the lid 82, wedge block 83 can be compressed and kick-back by the wedge groove 822 that locates and get into rather than in another adjacent wedge groove 822. Be equipped with spacing portion 8121 on the mounting groove 812, be equipped with on the wedge 83 with spacing boss 831 of spacing portion complex, spacing boss 831 joint in spacing portion 8121, will wedge 83 pass through second spring elasticity pressure equipment in the mounting groove 812.

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A short-circuit device of a current terminal is characterized by comprising an insulating seat, a conductive block, a plurality of connecting plates and a plurality of short-circuit plugs, wherein the short-circuit plugs are arranged in sockets on the side surface of the insulating seat, the conductive block and the connecting plates are arranged in the insulating seat at intervals, and the connecting plates are in contact with the short-circuit plugs;

2. The current terminal shorting device according to claim 1, wherein a first surface of the connecting plate contacts with the shorting plug, a second surface of the connecting plate is provided with a first contact piece, a second contact piece is provided on a surface of the conductive block opposite to the second surface, the first contact piece and the second contact piece are located on a same straight line to form a contact gap, the first limit point and the second limit point are respectively located above and below the contact gap, and when the button is pressed, the contact block can move to the second limit point along the first guide section to conduct the first contact piece and the second contact piece or move to the first limit point to disconnect the first contact piece and the second contact piece.

3. The current terminal shorting device according to claim 1 or 2, wherein the button comprises a mounting body with a color indication and a cap that is transparent, the cap being slidably mounted in the mounting body, the cap displaying the same color as the mounting body when slid into the mounting body.

4. The current terminal short-circuit device according to claim 1 or 2, further comprising an identification device, wherein the identification device comprises a circular identification base and a hemispherical shielding cover, the identification base is provided with a plurality of identification areas along the circumference, the plurality of identification areas are divided into at least two different types, the two adjacent identification areas are different in type, the shielding cover is provided with a transparent area corresponding to one type of identification area, and the shielding cover can rotate relative to the identification base to enable the transparent area to coincide with one type of identification area.

5. The current terminal shorting device of claim 4, wherein the plurality of identification areas are divided into two different types, and the plurality of two different identification areas are circumferentially distributed on the identification base in a staggered manner.

6. The current terminal short-circuiting device according to claim 4, wherein said identification base is provided with a mounting groove, a wedge block is elastically press-fitted in said mounting groove, said shielding cover is provided with a plurality of wedge grooves corresponding to said wedge block, said wedge block is pushed into said wedge grooves, and when said shielding cover is rotated, said wedge block can be compressed by said wedge groove and rebounded into another wedge groove adjacent to said wedge groove.

7. The current terminal short-circuit device according to claim 6, wherein a limiting portion is arranged on the mounting groove, a limiting boss matched with the limiting portion is arranged on the wedge block, the limiting boss is clamped in the limiting portion, and the wedge block is elastically pressed in the mounting groove.

8. The current terminal shorting device according to claim 1, further comprising an insulating handle connected to the insulating base, the insulating handle having a length extending in the same direction as the shorting plug.

9. The current terminal shorting device according to claim 1, wherein the shorting plug is detachably arranged in the jack on the side surface of the insulating base, and an elastic anti-slip gasket is arranged at a contact part of the shorting plug and the jack.

10. The current terminal shorting device according to claim 1, wherein the insulating base is a plastic insulating base, and the conductive block and the connecting plate are respectively connected with the insulating base by injection molding.