CN211929370U

CN211929370U - Isolating switch for primary-secondary fusion SF6 circuit breaker

Info

Publication number: CN211929370U
Application number: CN202020840330.2U
Authority: CN
Inventors: 杜振鹏; 孙法裕; 宋汉沙; 季红涛
Original assignee: Henan Anda High Voltage Electric Co ltd
Current assignee: Henan Anda High Voltage Electric Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-11-13
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a two times fuse SF6 isolator for circuit breaker, which comprises a supporting pedestal and is characterized by further comprising, support base one side and be equipped with the transformer, and be equipped with current transformer on supporting the base, the current transformer upper end is equipped with insulating cover, and is equipped with the cap of being qualified for the next round of competitions on the insulating cover, be equipped with the inserted block on the cap of being qualified for the next round of competitions, and be equipped with the connecting rod on the inserted block, the connecting rod other end is equipped with the spread groove, and the connecting rod is connected with the spread groove interpolation, be equipped with the pivot on the connecting rod, and be equipped with the return spring in the pivot, the. This a secondary fuses is equipped with the inserted block on SF circuit breaker's isolator's the cap of being qualified for the next round of competitions, and inserted block one end is equipped with the connecting rod, and the connecting rod other end is equipped with the spread groove to the spread groove is connected with the connecting rod lock, and is equipped with return spring and pivot on the connecting rod, makes the connecting rod can be upspring by automation like this, facilitates the use.

Description

Isolating switch for primary-secondary fusion SF6 circuit breaker

Technical Field

The utility model relates to a isolator technical field specifically is a once the twice fuse isolator for SF6 circuit breaker.

Background

In recent years, with the high-speed development of economy in China, infrastructure construction is more rapidly advanced, and higher requirements are put forward on the operation reliability of various high-voltage electrical equipment of a power system; the working environment of the isolating switch in various devices of a power system is the worst, and the isolating switch is completely exposed in the atmospheric environment and is subjected to the erosion of acid rain, salt fog and sand wind. Due to the defects in the design of the existing isolating switch, the current capacity and the short-circuit current bearing capacity of the isolating switch are poor; self-cleaning is not possible, and maintenance is often required; and the defects of high heating of the conductive loop, easy corrosion of a transmission part, poor corrosion resistance and the like exist. Among the various operational accidents of the power system in recent years, the operational accidents of the disconnector are the most frequent.

The outdoor three-phase AC high voltage isolator of two post pi type that current patent number is CN200720028046.X external pressure type touches finger structure, the device can not carry out more convenient installation and demolish when using, uses inconveniently, and the current isolator that once and twice fuses SF6 circuit breaker reaches the purpose of rotating the upset.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a once the twice isolator for fusing SF6 circuit breaker to solve the isolator that mentions in the above-mentioned background art when using, can not carry out more convenient installation and demolish, use inconvenient problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a two times fuse SF6 isolator for circuit breaker, includes and supports the base, it is equipped with the transformer to support base one side, and is equipped with current transformer on the support base, the current transformer upper end is equipped with insulating cover, and is equipped with the cap of being qualified for the next round of competitions on the insulating cover, be equipped with the inserted block on the cap of being qualified for the next round of competitions, and be equipped with the connecting rod on the inserted block, the connecting rod other end is equipped with the spread groove, and the connecting rod closes with the spread groove plug and be connected, be equipped with the pivot on the connecting rod, and be equipped with the return spring in the pivot.

Preferably, the outer wall of the current transformer is provided with an outer wrapping block, one side of the outer wrapping block is provided with a cover block, the cover block is connected with the outer wrapping block in a turnover mode through a connecting hinge, the cover block and the outer wrapping block are both provided with inner wrapping blocks, and the current transformer is connected with the cover block and the outer wrapping block in a wrapping mode.

Preferably, a slot is formed in the wire outgoing cap, the shape of the slot is matched with that of the insertion block, and the connecting rod is fixedly connected with the wire outgoing cap in an inserting mode through the insertion block in the slot.

Preferably, be equipped with between the connecting rod and touch the finger, and touch and be equipped with the contact in the finger, touch and indicate that there is the mounting groove, and the shape of mounting groove and the shape phase-match of contact, the contact is through the mounting groove with touch and indicate that to be inserted and close fixed connection.

Preferably, a fixing block is arranged on one side of each outer wrapping block, and the outer wrapping blocks are fixedly connected through the fixing blocks.

Preferably, be equipped with the cushion in the spread groove, and the spread groove is extrusion fixed connection through cushion and connecting rod, be equipped with the connecting block in the connecting rod, and the connecting rod is the fixed connection that inserts through connecting block and spread groove.

Compared with the prior art, the beneficial effects of the utility model are that: this twice fuse SF6 isolator for circuit breaker is equipped with the inserted block on being qualified for the next round of competitions the cap, and inserted block one end is equipped with the connecting rod, and the connecting rod other end is equipped with the spread groove to the spread groove is connected with the connecting rod lock, and is equipped with return spring and pivot on the connecting rod, makes the connecting rod can be upspring by automation like this, facilitates the use.

Drawings

Fig. 1 is a front view of an isolator for a primary-secondary fusion SF6 circuit breaker according to the present invention;

fig. 2 is a cross-sectional view of a disconnector for a primary-secondary fusion SF6 circuit breaker according to the present invention;

fig. 3 is a schematic diagram of the connection between the contact and the contact finger of the first-time and second-time fusion SF6 circuit breaker of the present invention;

fig. 4 is a schematic view of the connection between the connection rod and the connection groove of the first-time fusion SF6 breaker according to the present invention;

fig. 5 is the utility model relates to a once twice fuses isolator current transformer and current transformer for SF6 circuit breaker and is connected the schematic diagram.

In the figure: 1. the transformer coil comprises a supporting base, 2, a current transformer, 3, an insulating sleeve, 4, a wire outgoing cap, 5, a connecting rod, 6, an outer wrapping block, 7, a transformer, 8, a return spring, 9, a rotating shaft, 10, an inserting block, 11, a contact, 12, a fixing block, 13, a slot, 14, a contact finger, 15, a mounting groove, 16, a connecting groove, 17, a cushion block, 18, a connecting block, 19, a connecting hinge, 20, a cover block, 21 and an inner wrapping block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an isolating switch for an SF6 circuit breaker with primary and secondary fusion comprises a supporting base 1, a current transformer 2, an insulating sleeve 3, a wire outlet cap 4, a connecting rod 5, an outer wrapping block 6, a transformer 7, a return spring 8, a rotating shaft 9, an inserting block 10, a contact 11, a fixing block 12, a slot 13, a contact finger 14, a mounting groove 15, a connecting groove 16, a cushion block 17, a connecting block 18, a connecting hinge 19, a cover block 20 and an inner wrapping block 21, wherein the transformer 7 is arranged on one side of the supporting base 1, the current transformer 2 is arranged on the supporting base 1, the outer wrapping block 6 is arranged on the outer wall of the current transformer 2, the cover block 20 is arranged on one side of the outer wrapping block 6, the cover block 20 is connected with the outer wrapping block 6 in a turnover mode through the connecting hinge 19, the inner wrapping block 21 is arranged in the cover block 20 and the outer wrapping block 6, the current transformer 2 is connected with the cover block 20 and the outer wrapping block 6 in a wrapping, the device is more stable, the upper end of the current transformer 2 is provided with the insulating sleeve 3, the upper end of the insulating sleeve 3 is provided with the wire outgoing cap 4, the wire outgoing cap 4 is internally provided with a slot 13, the shape of the slot 13 is matched with that of the insertion block 10, the connecting rod 5 is fixedly connected with the wire outgoing cap 4 in the slot 13 in an insertion way through the insertion block 10, so that the wire outgoing cap 4 of the device can be better installed with the connecting rod 5 in the slot 13 through the insertion block 10, the wire outgoing cap 4 is provided with the insertion block 10, the insertion block 10 is provided with the connecting rod 5, the connecting rod 5 is provided with the contact fingers 14 between the connecting rods 5, the contact fingers 14 are internally provided with the contact fingers 11, the contact fingers 14 start to be provided with the installation grooves 15, the shape of the installation grooves 15 is matched with that of the contact fingers 11 are fixedly connected with the contact fingers 14 in an insertion way through the installation grooves 15, so, and connecting rod 5 and spread groove 16 are inserted and closed and are connected, be equipped with cushion 17 in the spread groove 16, and spread groove 16 is extrusion fixed connection through cushion 17 and connecting rod 5, be equipped with connecting block 18 in the connecting rod 5, and connecting rod 5 is inserted and closed fixed connection through connecting block 18 and spread groove 16, it is more stable to make the device's connecting rod 5 be connected with spread groove 16 like this, it is more convenient to use, be equipped with pivot 9 on the connecting rod 5, and be equipped with back force spring 8 in the pivot 9, connecting rod 5 is elasticity upset swing joint with the cap 4 of being qualified for the next round of competitions in pivot 9 through back force spring 8, outer parcel 6 one side is equipped with fixed block 12, and be fixed connection through fixed block 12 between the outer parcel 6 of making the device like this, it can be fixed to make.

The working principle is as follows: when the isolating switch for the primary-secondary fusion SF6 circuit breaker is used, the device is taken out firstly, then the current transformer 2 of the device is installed on the supporting base 1, then the device is lifted for installation, then the outer wrapping block 6 of the device is taken out, then the outer wrapping block 6 of the device is sleeved on the current transformer 2, then the cover block 20 of the device is turned over and closed through the connecting hinge 19 and is fixed, then the outer wrapping blocks 6 can be mutually fixed through the fixing block 12, then the connecting rod 5 of the device is taken out, then the connecting rod 5 is electrically connected with the outgoing line cap 4 through the inserting block 10 and the inserting groove 13, then the connecting rod 5 is turned over to the connecting groove 16 through the rotating shaft 9, then the connecting rod 5 is inserted and connected with the connecting groove 16 through the connecting block 18, then the contact 11 is fixedly connected with the contact finger 14 through the installing groove 15, when the connecting rod 5 needs to be removed, the connecting block 18 can be pulled out, and then the connecting rod 5 can be automatically bounced through the return spring 8, so that the use is more convenient, and the isolating switch for the primary-secondary fusion SF6 circuit breaker is used in the using process.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a two times fuse isolator for SF6 circuit breaker, includes and supports base (1), it is equipped with transformer (7) to support base (1) one side, and is equipped with current transformer (2) on supporting base (1), current transformer (2) upper end is equipped with insulating cover (3), and insulating cover (3) upper end is equipped with outlet cap (4), its characterized in that: be equipped with inserted block (10) on cap (4) of being qualified for the next round of competitions, and be equipped with connecting rod (5) on inserted block (10), the connecting rod (5) other end is equipped with spread groove (16), and connecting rod (5) and spread groove (16) plug-in close the connection, be equipped with pivot (9) on connecting rod (5), and be equipped with return spring (8) in pivot (9), connecting rod (5) are elasticity upset swing joint through return spring (8) in pivot (9) with cap (4) of being qualified for the next round of competitions.

2. The isolating switch of claim 1, wherein the isolating switch comprises: the outer wall of the current transformer (2) is provided with an outer wrapping block (6), one side of the outer wrapping block (6) is provided with a cover block (20), the cover block (20) is connected with the outer wrapping block (6) in a turnover mode through a connecting hinge (19), the cover block (20) and the outer wrapping block (6) are both internally provided with an inner wrapping block (21), and the current transformer (2) is connected with the cover block (20) and the outer wrapping block (6) in a wrapping mode.

3. The isolating switch of claim 1, wherein the isolating switch comprises: the wire outgoing cap is characterized in that a slot (13) is formed in the wire outgoing cap (4), the shape of the slot (13) is matched with that of the insertion block (10), and the connecting rod (5) is fixedly connected with the wire outgoing cap (4) in the slot (13) in an insertion mode through the insertion block (10).

4. The isolating switch of claim 1, wherein the isolating switch comprises: be equipped with between connecting rod (5) and touch and indicate (14), and touch and be equipped with contact (11) in indicating (14), touch and indicate (14) and begin to have mounting groove (15), and the shape of mounting groove (15) and the shape phase-match of contact (11), contact (11) are the fixed connection that inserts with touching to indicate (14) through mounting groove (15).

5. The isolating switch of claim 2, wherein the isolating switch comprises: one side of the outer wrapping blocks (6) is provided with a fixing block (12), and the outer wrapping blocks (6) are fixedly connected through the fixing block (12).

6. The isolating switch of claim 1, wherein the isolating switch comprises: be equipped with cushion (17) in spread groove (16), and spread groove (16) are extrusion fixed connection through cushion (17) and connecting rod (5), be equipped with connecting block (18) in connecting rod (5), and connecting rod (5) are through connecting block (18) and spread groove (16) and insert and close fixed connection.