CN210052677U

CN210052677U - Indoor high-voltage isolating switch with high insulation

Info

Publication number: CN210052677U
Application number: CN201920912350.3U
Authority: CN
Inventors: 刘亚军
Original assignee: Nanjing Sudian Energy Equipment Co Ltd
Current assignee: Nanjing Sudian Energy Equipment Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-02-11
Anticipated expiration: 2029-06-18

Abstract

The utility model belongs to the field of high-voltage isolating switches, in particular to an indoor high-voltage isolating switch with high insulativity, which comprises a pillar, an insulating sheath, a base and a knife switch, wherein both sides of the top end of the base are fixedly connected with the pillar, the insulating sheath is sleeved outside the pillar, a connecting block is fixedly connected inside the top end of the insulating sheath, a sealing plate is fixedly connected to the top end of the connecting block, a bolt penetrates through the sealing plate and is fixed with the connecting block in a screwed manner, and the top end of the pillar is fixedly connected with a first connecting plate in a; when carrying out the outage maintenance, break away from the back on plug-in strip and the hasp board, rotate the plug-in strip downwards, with the protective housing laminating, outside pulling splint, through the extension of spring, splint outwards remove, pass first through-hole and second through-hole simultaneously with the connecting rod, fix the plug-in strip, avoid touching at the disconnection in-process mistake, lead to isolator to switch on electricity once more, cause the staff injured, the security is higher.

Description

Indoor high-voltage isolating switch with high insulation

Technical Field

The utility model relates to a high voltage isolator field specifically is an indoor high voltage isolator of insulating nature height.

Background

The high-voltage isolating switch is an important switching device in electric systems of power plants and transformer substations, needs to be matched with a high-voltage circuit breaker for use, and has the main functions of: the safety of high-voltage electrical appliances and devices during maintenance work is guaranteed, the voltage isolation function is achieved, the high-voltage electrical appliances and devices cannot be used for switching off, putting in load current and switching on and off short-circuit current, the high-voltage electrical appliances and devices can only be used for certain switching operations without generating strong electric arcs, the high-voltage electrical appliances and devices are divided into an indoor type and an outdoor type according to different installation places, and the high-voltage electrical appliances and devices are divided into a single column type, a double column type and a three column type according to. At present, a common insulating sheath is wrapped on the outer layer of an equipment conductor, the insulating protection effect on the equipment is realized, incomplete wrapping can be caused due to the fact that the conductor is in a shape and a size in the wrapping process, the isolation switch is switched on to be blocked, and the power supply problem is caused.

Chinese patent publication No. CN204809105U discloses an insulation protection high-voltage isolation switch, which can be separated in space by adding an insulation partition plate on the original high-voltage isolation switch, effectively preventing small animals and other hanging objects from touching and connecting the switch knife and the base, and avoiding the occurrence of ground short circuit fault, but when short circuit maintenance is performed, the knife blade in the isolation switch may be accidentally touched by people in case of disconnection, resulting in the isolation switch being powered on again, and threatening the life safety of workers. Therefore, those skilled in the art have provided an indoor high-voltage isolating switch with high insulation to solve the above problems in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an indoor high voltage isolator that insulating nature is high to solve the problem that proposes in the above-mentioned background art.

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

an indoor high-voltage isolating switch with high insulation property comprises a pillar, an insulating sheath, a base and switch blades, wherein the pillar is fixedly connected to two sides of the top end of the base, the insulating sheath is sleeved on the outer side of the pillar, a connecting block is fixedly connected to the inside of the top end of the insulating sheath, a sealing plate is fixedly connected to the top end of the connecting block, a bolt penetrates through the sealing plate and is fixedly connected with the connecting block in a screwed mode, a first connecting plate is fixedly connected to the top end of the pillar in a screwed mode, a lock catch plate is fixedly connected to the top end of the other pillar in a screwed mode, a fixing plate is fixedly connected to the top end of the second connecting plate, two switch blades are rotatably connected to the outer side of the fixing plate, a contact spring is fixedly connected to the outer wall of each switch blade located on the outer side, a, contact spring other end threaded connection has the nut, two the inside first through-hole of equidimension has all been seted up to the plug-in strip, second connecting plate other end outside cover has the mounting panel, mounting panel top fixedly connected with limiting plate, limiting plate inner wall bottom fixedly connected with spring, spring other end fixedly connected with splint, splint outer wall fixedly connected with connecting rod.

As a further aspect of the present invention: the inside fixedly connected with pivot of fixed plate, the pivot runs through two the plug-in strip with the fixed plate, the fixed plate passes through the pivot with the plug-in strip rotates to be connected.

As a further aspect of the present invention: the protective housing is installed to the spring upper end, the protective housing with mounting panel up end fixed connection.

As a further aspect of the present invention: and a second through hole matched with the first through hole is formed in the limiting plate, and the second through hole and the first through hole are symmetrically distributed.

As a further aspect of the present invention: the switch blade is kept away from the one end spiro union of fixed plate is fixed with the handle, the handle outside cover has the rubber sleeve.

As a further aspect of the present invention: the mounting panel is inside to be hollow structure, the screw rod run through the mounting panel with the second connecting plate, screw rod other end threaded connection has the nut.

As a further aspect of the present invention: the connecting rod and the second through hole are in a horizontal state, and the diameter of the connecting rod is matched with that of the second through hole.

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

1. when carrying out the outage maintenance, break away from the back on plug-in strip and the hasp board, rotate the plug-in strip downwards, with the protective housing laminating, outside pulling splint, through the extension of spring, splint outwards remove, pass first through-hole and second through-hole simultaneously with the connecting rod, fix the plug-in strip, avoid touching at the disconnection in-process mistake, lead to isolator to switch on electricity once more, cause the staff injured, the security is higher.

2. Sealing plate and connecting block are installed on insulating sheath top, and sealing plate and the inside screw that is provided with the equidimension of connecting block run through sealing plate and connecting block with the bolt, install the sealing plate inside insulating sheath, and the leakproofness is better, and is more complete to the parcel of pillar, can effectually prevent that impurity etc. from touching inside pillar, causes short-circuit fault.

Drawings

Fig. 1 is a schematic structural diagram of an indoor high-voltage isolating switch with high insulation performance;

fig. 2 is a schematic diagram of a top view of an indoor high-voltage isolation switch with high insulation performance;

fig. 3 is a schematic front view of an indoor high-voltage isolating switch with high insulation performance;

fig. 4 is a schematic structural diagram of an insulating sheath in an indoor high-voltage isolating switch with high insulating property.

In the figure: 1. a pillar; 2. an insulating sheath; 3. a base; 4. a knife switch; 5. mounting a plate; 11. a first connecting plate; 12. a locking plate; 13. a second connecting plate; 14. a fixing plate; 15. a rotating shaft; 21. connecting blocks; 22. a sealing plate; 23. a bolt; 41. a contact spring; 42. locking; 43. a first through hole; 44. a handle; 51. a limiting plate; 52. a protective shell; 53. a splint; 54. a connecting rod; 55. a spring; 441. a rubber sleeve; 511. a second via.

Detailed Description

Referring to fig. 1 to 4, in the embodiment of the present invention, an indoor high-voltage isolator with high insulation performance comprises a pillar 1, an insulating sheath 2, a base 3 and blades 4, wherein both sides of the top end of the base 3 are fixedly connected with the pillar 1, the insulating sheath 2 is sleeved outside the pillar 1, a connecting block 21 is fixedly connected inside the top end of the insulating sheath 2, a sealing plate 22 is fixedly connected to the top end of the connecting block 21, a bolt 23 penetrates through the sealing plate 22 and is fixed to the connecting block 21 in a threaded manner, a first connecting plate 11 is fixedly connected to the top end of the pillar 1 in a threaded manner, a locking plate 12 is fixedly connected to the top end of the first connecting plate 11, a second connecting plate 13 is fixedly connected to the top end of the other pillar 1 in a threaded manner, a fixing plate 14 is fixedly connected to the top end of the second connecting plate 13, two blades 4, contact spring 41 runs through hasp 42 and two plug-in blades 4, and contact spring 41 other end threaded connection has the nut, and two inside first through-holes 43 of the same size have all been seted up of plug-in blades 4, and the cover has mounting panel 5 in the second connecting plate 13 other end outside, and 5 top fixedly connected with limiting plate 51 of mounting panel, limiting plate 51 inner wall bottom fixedly connected with spring 55, spring 55 other end fixedly connected with splint 53, splint 53 outer wall fixedly connected with connecting rod 54.

In fig. 1: the two sides of the top end of the base 3 are fixedly connected with the pillars 1, the two pillars 1 are fixed through the base 3, the top end of each pillar 1 is fixedly connected with a first connecting plate 11 in a threaded manner, the top end of each first connecting plate 11 is fixedly connected with a lock catch plate 12, each lock catch plate 12 is installed on each first connecting plate 11, the top end of the other pillar 1 is connected with a second connecting plate 13 in a threaded manner, the top end of each second connecting plate 13 is fixedly connected with a fixing plate 14, the outer side of each fixing plate 14 is rotatably connected with two switch blades 4, a rotating shaft 15 is fixedly connected inside each fixing plate 14, each rotating shaft 15 penetrates through the two switch blades 4 and the corresponding fixing plate 14, each fixing plate 14 is rotatably connected with the corresponding switch blade 4 through the corresponding rotating shaft 15, the two switch blades 4 are rotated to be subjected to power-off maintenance in the maintenance process, the outer wall of the, the contact spring 41 penetrates through the lock catch 42 and the two blades 4, the other end of the contact spring 41 is connected with a nut in a threaded manner, the lock catch 42 is fixed between the two switch blades 4 through the contact spring 41, the lock catch 42 is clamped with the lock catch plate 12 to connect the two switch blades 4 with the lock catch plate 12 for power supply, the first through holes 43 with the same size are arranged inside the two switch blades 4, the second through holes 511 matched with the first through holes 43 are arranged inside the limit plate 51, the second through holes 511 and the first through holes 43 are symmetrically distributed, the connecting rod 54 and the second through holes 511 are in a horizontal state, the diameter of the connecting rod 54 is matched with that of the second through holes 511, when the power is cut off and the maintenance is carried out, the two blades 4 are rotated downward by the rotation shaft 15, the connection rod 54 is simultaneously passed through the first and second through

holes

43 and 511, fix two plug-in blades 4, avoid causing the mistake to touch at the outage maintenance in-process, cause the staff injured.

In fig. 2: second connecting plate 13 other end outside cover has mounting panel 5, mounting panel 5 top fixedly connected with limiting plate 51, limiting plate 51 inner wall bottom fixedly connected with spring 55, protective housing 52 is installed to spring 55 upper end, protective housing 52 and mounting panel 5 up end fixed connection, spring 55 other end fixedly connected with splint 53, splint 53 outer wall fixedly connected with connecting rod 54, outside pulling splint 53, through the extension of spring 55, splint 53 outwards remove, pass first through-hole 43 and second through-hole 511 with connecting rod 54 simultaneously, fix two plug-in strip 4, protect spring 55 through protective housing 52, increase spring 55's life.

In fig. 3: the inside hollow structure that is of mounting panel 5, the screw rod runs through mounting panel 5 and second connecting plate 13, screw rod other end threaded connection has the nut, the one end spiro union that fixed plate 14 was kept away from to plug-in strip 4 is fixed with handle 44, handle 44 outside cover has rubber sleeve 441, connect mounting panel 5 and second connecting plate 13 through the screw rod, fix through the nut, easy to assemble and dismantlement, come opening and closure of carrying out plug-in strip 4 through handle 44, handle 44 overcoat has rubber sleeve 441, play the guard action to the staff.

In fig. 4: the cover has insulating sheath 2 in the 1 outside of pillar, the inside fixedly connected with connecting block 21 in 2 tops of insulating sheath, connecting block 21 top fixedly connected with closing plate 22, bolt 23 runs through closing plate 22 and connecting block 21 spiro union is fixed, run through closing plate 22 and connecting block 21 with bolt 23, install closing plate 22 inside insulating sheath 2, seal between insulating sheath 2 and pillar 1, the leakproofness is better, to the more complete of the parcel of pillar 1, can effectually prevent that impurity etc. from touching inside pillar 1, cause short-circuit fault.

The utility model discloses a theory of operation is: in the case of power-off maintenance, the clamp plate 53 is pulled outward, and by the extension of the spring 55, the clamp plate 53 is moved outward, the two switch blades 4 are rotated downwards through the handle 44, the upper ends of the switch blades 4 are attached to the upper end of the protective shell 52, the connecting rod 54 is aligned to the second through hole 511, the clamping plate 53 is slowly loosened, the spring 55 contracts inwards, the connecting rod 54 simultaneously penetrates through the first through hole 43 and the second through hole 511, the switch blades 4 are fixed, the phenomenon that the disconnecting switch is electrified again due to mistaken touch in the disconnection process, workers are injured is avoided, after the maintenance is finished, the clamping plate 53 is pulled outwards, by the extension of the spring 55, the clamp plate 53 is moved outwards, pulling the connecting rod 54 out of the blade 4, when the handle 44 rotates the knife 4 first and the clamp plate 53 is released slowly, the spring 55 contracts inward to return the connecting rod 54 to the original position, and the latch 42 is engaged with the latch plate 12 to supply power.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an indoor insulating high voltage isolator, includes pillar (1), insulating sheath (2), base (3) and plug-in strip (4), its characterized in that: the support is characterized in that the support (1) is fixedly connected to both sides of the top end of the base (3), the insulating sheath (2) is sleeved on the outer side of the support (1), a connecting block (21) is fixedly connected to the inside of the top end of the insulating sheath (2), a sealing plate (22) is fixedly connected to the top end of the connecting block (21), a bolt (23) penetrates through the sealing plate (22) and is fixedly connected with the connecting block (21) in a threaded manner, a first connecting plate (11) is fixedly connected to the top end of the support (1) in a threaded manner, a locking plate (12) is fixedly connected to the top end of the first connecting plate (11), a second connecting plate (13) is fixedly connected to the top end of the support (1), a fixing plate (14) is fixedly connected to the top end of the second connecting plate (13), two switch blades (4) are rotatably connected to the, two fixedly connected with hasp (42) between plug-in strip (4), contact spring (41) run through hasp (42) and two plug-in strip (4), contact spring (41) other end threaded connection has the nut, two the same size's first through-hole (43) have all been seted up to plug-in strip (4) inside, second connecting plate (13) other end outside cover has mounting panel (5), mounting panel (5) top fixedly connected with limiting plate (51), limiting plate (51) inner wall bottom fixedly connected with spring (55), spring (55) other end fixedly connected with splint (53), splint (53) outer wall fixedly connected with connecting rod (54).

2. An indoor high-voltage isolating switch with high insulation performance as claimed in claim 1, wherein: the inside fixedly connected with pivot (15) of fixed plate (14), pivot (15) run through two plug-in strip (4) with fixed plate (14), fixed plate (14) pass through pivot (15) with plug-in strip (4) rotate and are connected.

3. An indoor high-voltage isolating switch with high insulation performance as claimed in claim 1, wherein: the protective shell (52) is installed to spring (55) upper end, protective shell (52) with mounting panel (5) up end fixed connection.

4. An indoor high-voltage isolating switch with high insulation performance as claimed in claim 1, wherein: the limiting plate (51) is internally provided with a second through hole (511) matched with the first through hole (43), and the second through hole (511) and the first through hole (43) are symmetrically distributed.

5. An indoor high-voltage isolating switch with high insulation performance as claimed in claim 1, wherein: one end of the knife switch (4) far away from the fixing plate (14) is fixedly provided with a handle (44) in a threaded manner, and a rubber sleeve (441) is sleeved outside the handle (44).

6. An indoor high-voltage isolating switch with high insulation performance as claimed in claim 1, wherein: the mounting plate (5) is internally hollow, the screw rod penetrates through the mounting plate (5) and the second connecting plate (13), and the other end of the screw rod is in threaded connection with a nut.

7. An indoor high-voltage isolating switch with high insulation performance as claimed in claim 4, wherein: the connecting rod (54) and the second through hole (511) are in a horizontal state, and the diameter of the connecting rod (54) is matched with that of the second through hole (511).