CN211016844U - Pole-mounted switch framework - Google Patents

Abstract

The utility model discloses a switch frame on a column, which comprises a main frame. The main frame is respectively provided with an isolation switch and a lightning arrester from top to bottom. The isolation switch is integrally provided with an inlet side socket and an outlet side. The socket, the arrester is integrally provided with a socket, wherein the inlet side socket of the isolating switch is connected with the overhead line through the wiring head, and the outlet side socket of the isolating switch is respectively connected with the socket and cable line of the arrester through the terminal head. connect. The utility model transfers the overhead line on the main frame to the underground cable line through the isolating switch and the arrester through the connection and reconstruction between different equipments. It can reduce and flexibly arrange the connection relationship between devices. At the same time, by setting the circuit breaker on the column, the overhead lines on both sides of the main frame can be flexibly segmented.

Description

A column switch frame

technical field

The utility model relates to the field of power distribution equipment, in particular to a switch frame on a column.

Background technique

With the construction and development of cities, overhead corridors for transmission lines are becoming more and more scarce. In order to meet the needs of urban construction in some urban areas, the existing overhead transmission lines need to be underground as cable transmission lines. Construction costs will also increase significantly. In addition, the segmentation problem of transmission lines is also related to the safety of the distribution network.

Utility model content

The utility model provides a switch frame on a column, which realizes the safe conversion of an overhead transmission line into a cable line.

For solving the above-mentioned technical problems, the technical scheme of the present utility model is as follows:

A switch frame on a column is used to transfer overhead lines and cable lines, and includes a main frame. The main frame is provided with an isolation switch and a lightning arrester from top to bottom, and an incoming line is integrally provided on the isolation switch. The side socket and the outlet side socket are integrally provided with sockets on the arrester, wherein the inlet side socket of the isolating switch is connected with the overhead line through the wiring head, and the outlet side socket of the isolating switch is respectively connected with the socket and cable of the arrester. The lines are connected through the wiring head to realize the transfer of overhead lines and cable lines.

Preferably, it also includes a circuit breaker, the circuit breaker is integrally provided with an inlet side socket and an outlet side socket, and the connection between the arrester and the isolation switch is relayed by the circuit breaker.

Preferably, the surfaces of the isolating switch, the circuit breaker and the arrester are all coated with an insulating coating.

Preferably, the wiring head includes a static contact connected to the socket, the static contact is sleeved with a limit nut, a threaded retaining ring is screwed into the outer undercut groove of the static contact, and the static contact is There is a built-in moving contact for wiring, an insulating sleeve is arranged between the static contact and the moving contact, wherein the insulating sleeve includes an extension end protruding from the static contact, and the static contact is provided with an end The cover nut clamps the insulating sleeve through the inner thread, the outer thread of the end cover nut is screwed into the limit nut, the outer thread of the end cover nut and the inner thread of the limit nut.

Preferably, the movable contact is provided with a strap contact finger, which can effectively reduce the contact resistance through multi-point contact.

Preferably, the terminal is covered with a plastic alloy on the surface of the static contact through an injection molding process, and the cable core and the moving contact are crimped and connected to the static contact through an end cap nut.

Preferably, the knife gate of the isolating switch is covered with silicone rubber, which realizes the fully enclosed structure of the dynamic equipment, and the product does not have any exposed charged body. The contact of the isolating switch adopts a multi-contact structure to increase the effective contact of the contacts. The insulator of the isolating switch is an alicyclic epoxy resin insulator produced by APG process, which has excellent outdoor performance such as water repellency, self-cleaning, anti-ultraviolet, anti-atmospheric aging, etc. The unique shape structure makes the insulator and the knife switch cooperate closely, and the contact part is in a relatively closed state in the closed state.

Preferably, the arrester includes an umbrella cover, and the inside of the arrester is a set of core rods made of glass fiber reinforced plastic to ensure its high mechanical strength. Good, excellent explosion-proof performance, pollution resistance, electrical corrosion resistance, anti-aging, small size, light weight, easy installation and maintenance.

Preferably, it also includes a pole-mounted circuit breaker, the pole-mounted circuit breaker is integrally provided with two sockets, the isolation switch and the arrester have two, wherein the inlet side socket of one isolation switch is connected to the overhead side of the main frame. The line is connected by the wiring head, the incoming side socket of the other isolation switch is connected with the overhead line on the other side of the main frame through the wiring head wiring, and the outlet side socket of one isolating switch is respectively connected with the socket of a lightning arrester and one of the circuit breaker on the column. The socket is connected through the wiring head, and the outlet on the outlet side of the other isolation switch is respectively connected with the socket of another arrester and the other socket of the circuit breaker on the column through the wiring of the terminal to realize the segmentation or branching between the overhead lines on both sides of the main frame. .

Preferably, the surface of the circuit breaker on the pole is coated with an insulating cover.

Compared with the prior art, the beneficial effects of the technical solution of the present utility model are:

The utility model transfers the overhead line on the main frame to the underground cable line through the isolating switch and the arrester through the connection and reconstruction between different equipments. It can reduce and flexibly arrange the connection relationship between devices. At the same time, by setting the circuit breaker on the column, the overhead lines on both sides of the main frame can be flexibly segmented.

Description of drawings

FIG. 1 is a schematic diagram of the structure of the switch on the column of the present invention.

FIG. 2 is a schematic diagram of another on-column switch frame of the present invention.

FIG. 3 is a schematic diagram of the structure of the terminal.

FIG. 4 is a partial enlarged view of A in FIG. 3 .

FIG. 5 is a partial enlarged view of B in FIG. 3 .

In the figure, 1 is the main frame, 2 is the circuit breaker, 4 is the arrester, 5 is the isolation switch, 6 is the wiring head, 61 is the end cap nut, 62 is the limit nut, 63 is the threaded retaining ring, and 7 is the static contact Head, 71 is a slot, 72 is a wire inlet, 73 is a wire hole, 74 is an insulating outer wall, 8 is a moving contact, 81 is a strap contact finger, 9 is an insulating sleeve, 91 is an extension end, 10 Circuit breaker for the column.

Detailed ways

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent;

In order to better illustrate this embodiment, some parts of the drawings are omitted, enlarged or reduced, which do not represent the size of the actual product;

It will be understood by those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

The present embodiment provides a switch frame on a column, as shown in FIG. 1 , which is used to transfer overhead lines and cable lines, including a main frame 1 , and the main frame 1 is provided with an isolation switch 5 and a lightning arrester 4 respectively from top to bottom. , the isolating switch 5 is integrally provided with an incoming side socket and an outgoing side socket, and the arrester 4 is integrally provided with a socket, wherein the incoming side socket of the isolating switch 5 is connected to the overhead line through the wiring head 6 , the outlet side socket of the isolating switch 5 is respectively connected with the socket of the arrester 4 and the cable line through the terminal 6 to realize the transfer of the overhead line and the cable line.

It also includes a circuit breaker 2, the circuit breaker 2 is integrally provided with an inlet side socket and an outlet side socket, and the connection between the arrester 4 and the isolation switch 5 is relayed by the circuit breaker 2.

The surfaces of the isolating switch 5 , the circuit breaker 2 and the arrester 4 are all coated with an insulating coating.

As shown in Figures 3 to 5, the terminal 6 includes a static contact 7 connected to the socket. The static contact 7 is sheathed with a limit nut 62, and the static contact 7 is screwed into the outer undercut slot with a thread. The retaining ring 63, the static contact 7 has a built-in moving contact 8 for wiring, an insulating sleeve 9 is arranged between the static contact 7 and the moving contact 8, wherein the insulating sleeve 9 includes a protruding static contact. The extension end of the contact 7, the static contact 7 is provided with an end cap nut 61 to clamp the insulating sleeve 9 through the inner thread, the outer thread of the end cap nut 61 is screwed into the limit nut 62, and the end cap nut External thread and limit nut 62 internal thread.

The movable contact 8 is provided with strap contact fingers 81, which can effectively reduce the contact resistance through multi-point contact.

The terminal 6 covers the surface of the static contact 7 with a plastic alloy through an injection molding process, and the cable core and the moving contact 8 are crimped and connected to the static contact 7 through an end cap nut.

The knife gate of the isolating switch 5 is covered with silicone rubber, which realizes the fully enclosed structure of the dynamic equipment, and the product does not have any exposed charged body. The contact of the isolating switch 5 adopts a multi-contact structure to increase the effective contact area of the contact. , to ensure excellent electrical conductivity, the insulator of the isolating switch 5 is an alicyclic epoxy resin insulator produced by APG process, which has excellent outdoor performance such as water repellency, self-cleaning, anti-ultraviolet, anti-atmospheric aging and so on. The unique shape structure makes the insulator and the knife switch cooperate closely, and the contact part is in a relatively closed state in the closed state.

The arrester 4 includes an umbrella cover. The inside of the arrester 4 is a set of mandrels made of glass fiber reinforced plastic to ensure high mechanical strength. The umbrella cover is made by silicone rubber integral molding injection technology, and has good sealing performance. , Excellent explosion-proof performance, pollution resistance, electrical corrosion resistance, anti-aging, small size, light weight, easy installation and maintenance.

As shown in FIG. 2, it also includes a pole-mounted circuit breaker. The pole-mounted circuit breaker is integrally provided with two sockets, and there are two isolation switches 5 and arresters 4. Among them, the inlet side socket of one isolation switch 5 is connected to the main frame. The overhead line on one side of 1 is connected by wiring head 6, the inlet side socket of the other isolation switch 5 is connected with the overhead line on the other side of the main frame 1 through the wiring head 6, and the outlet side socket of one isolator switch 5 is connected to a The socket of the arrester 4 and one socket of the circuit breaker 2 on the column are connected through the wiring head 6, and the outlet on the outlet side of the other isolation switch 5 is respectively connected with the socket of the other arrester 4 and the other socket of the circuit breaker 2 on the column through the terminal 6. The wiring connection realizes the segmentation or branching between the overhead lines on both sides of the main frame 1 .

The surface of the circuit breaker on the pole is coated with an insulating cover.

The same or similar reference numbers correspond to the same or similar parts;

The terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation on this patent;

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims (10)

1. A switch frame on a column is used to transfer overhead lines and cable lines, characterized in that it comprises a main frame, and the main frame is provided with isolation switches and arresters from top to bottom respectively, and the isolation switches are provided on the An inlet-side socket and an outlet-side socket are integrally provided, and a socket is integrally provided on the arrester, wherein the inlet-side socket of the isolating switch is connected to the overhead line through the wiring head, and the outgoing-side sockets of the isolating switch are respectively Connect with the socket and cable line of the arrester through the wiring head. 2 . The switch frame on the pole according to claim 1 , further comprising a circuit breaker, the circuit breaker is integrally provided with an incoming side socket and an outgoing line side socket, and the connection between the arrester and the isolating switch passes through all the switches. 3 . the transfer of the circuit breaker. 3 . The switch frame on a pole according to claim 2 , wherein the surfaces of the isolating switch, the circuit breaker and the arrester are all coated with an insulating coating. 4 . 4 . The on-column switch frame according to claim 1 , wherein the wiring head comprises a static contact connected with the socket, the static contact is outer to the limit nut, and the static contact is outside the limit nut. 5 . A threaded retaining ring is screwed into the undercut groove, a moving contact for wiring is built in the static contact, an insulating sleeve is arranged between the static contact and the moving contact, wherein the insulating sleeve includes a protruding static contact. The extension end of the contact, the static contact is provided with an end cap nut to clamp the insulating sleeve through the inner thread, the outer thread of the end cap nut is screwed into the limit nut, and the outer thread of the end cap nut is connected with the limit screw. Cap internal thread. 5 . The switch frame on a column according to claim 4 , wherein the movable contact is provided with a strap contact finger. 6 . 6 . The on-column switch frame according to claim 5 , wherein the terminal covers the surface of the static contact with a plastic alloy through an injection molding process, and the cable core and the moving contact pass through the end cap after being crimped. 7 . The nut is connected with the static contact. 7 . The switch frame on a column according to claim 1 , wherein the knife gate of the isolating switch is covered with silicone rubber, the contact of the isolating switch adopts a multi-contact structure, and the insulator of the isolating switch adopts a multi-contact structure. 8 . It is an alicyclic epoxy resin insulator produced by APG process. 8 . The switch frame on a column according to claim 1 , wherein the arrester includes an umbrella sleeve, the inside of the arrester is a set of mandrels made of glass fiber reinforced plastic, and the umbrella sleeve passes through the silicone rubber. 9 . Made by one-piece injection technology. 9 . The switch frame on a column according to claim 1 , further comprising a circuit breaker on the column, the circuit breaker on the column is integrally provided with two sockets, and there are two isolation switches and arresters, wherein The inlet side socket of one isolation switch is connected with the overhead line on one side of the main frame through the wiring head wiring, the inlet side socket of the other isolation switch is connected with the overhead line on the other side of the main frame through the wiring head wiring, and one isolation switch is outgoing. The side sockets are respectively connected with the socket of one arrester and one socket of the circuit breaker on the column through the wiring head, and the outlet side socket of the other disconnector is respectively connected with the socket of the other arrester and the other socket of the circuit breaker on the column through the wiring head. . 10 . The switch frame on a pole according to claim 9 , wherein the surface of the circuit breaker on the pole is coated with an insulating coating. 11 .

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