CN100565744C - Low-voltage combined type fuse blade switch on outdoor pole - Google Patents
Low-voltage combined type fuse blade switch on outdoor pole Download PDFInfo
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- CN100565744C CN100565744C CNB2006101346695A CN200610134669A CN100565744C CN 100565744 C CN100565744 C CN 100565744C CN B2006101346695 A CNB2006101346695 A CN B2006101346695A CN 200610134669 A CN200610134669 A CN 200610134669A CN 100565744 C CN100565744 C CN 100565744C
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- fuse
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Abstract
For solving the grounding safety hidden danger that the low-tension fuse knife switch exists, a kind of low-voltage combined type fuse blade switch on outdoor pole is provided, the low-voltage combined type fuse blade switch on outdoor pole technical scheme of the present patent application, it is three utmost point monomer fuse blade switch entire combination structures, be provided with the earthed switch mechanism that constitutes by ground connection moving contact interlock assembly and each ground connection fixed contact in its load side, universal driving shaft and each monomer base in the ground connection moving contact interlock assembly are rotatably assorted, and each utmost point ground connection moving contact knife plate that the drive key is fixed on it cooperates with ground connection fixed contact switch; Universal driving shaft one end also is provided with ground connection separating brake detent mechanism.The technical program provides directly finishes the Grunding switch gear device that transformer low voltage secondary outlet side feeds out electric wire or cable reliable ground, and it is easy and simple to handle, has guaranteed the electric power netting safe running performance, has also avoided the generation of human casualty accident.
Description
Technical field
Patent application of the present invention relates to is low-tension fuse knife switch technology as 10KV/0.4KV distribution transformer secondary low-voltage outlet side.
Background technology
Existing low-tension fuse knife switch is the one pole type version of monomer-type, is supported, is cooperated by end switch fixed contact parts switch it on and be provided with the fuse-link main carriage and constitute its agent structure by two post insulators, does not all possess the setting of safety ground mechanism.When the transformer high-voltage side has a power failure, when its high-pressure side or low-pressure side being carried out associative operation or maintenance, need on bus, articulate protective earth, but if because of problems such as manual operation or the quality of earth connection own, imperfect earth will appear, or articulate insecure even phenomenon such as come off, especially may not articulate earth connection in the remote mountain areas and directly carry out inspection operation, at this moment low-pressure side terminal use's power supply load equipment, as the UPS inverter, generator, the electric energy of capacitive compensator or other networks is brought by counter, then cause dangerous electric shock accidents, perhaps feed back high pressure more than 10,000 volts, the life security that then seriously jeopardizes operating personnel from high-pressure side by secondary input.So must solve the grounding safety hidden danger that existing low-tension fuse knife switch exists.
Summary of the invention
The goal of the invention of patent application of the present invention is to provide a kind of and sets up the low-voltage combined type fuse blade switch on outdoor pole of earthing device in load side, enables to guarantee the reliable and secure ground connection of low-pressure side circuit in have a power failure operation or maintenance circuit, electrical equipment operation.The low-voltage combined type fuse blade switch on outdoor pole technical scheme of the present patent application, its major technique content is: a kind of low-voltage combined type fuse blade switch on outdoor pole, be three utmost point monomer fuse blade switch entire combination structures, three utmost point monomer fuse blade switch are fixed on the pedestal in the same way, side by side, the load side that is positioned at fuse blade switch is provided with earthed switch mechanism, and this earthed switch mechanism is made of with the ground connection fixed contact that is connected in each utmost point load side terminals ground connection moving contact interlock assembly; Universal driving shaft in its ground connection moving contact interlock assembly be arranged at the monomer base load side, be rotatably assorted with each monomer base, be provided with the contact of earth torsion spring on the universal driving shaft and between the base, key is fixed in universal driving shaft and is provided with each utmost point ground connection moving contact knife plate that cooperates with each ground connection fixed contact switch, and universal driving shaft one end is provided with ground connection separating brake detent mechanism.
In above-mentioned overall technical architecture, for avoiding when each utmost point fuse blade switch also is in "on" position with the contact of earth misoperation of earthed switch mechanism, be provided with the insulation gag lever post perpendicular to ground connection moving contact knife plate, be provided with the five anti-latch levers that are barred from insulation gag lever post contact of earth turning point to ground connection moving contact knife plate one side protrusion on the fuse-link main carriage.
In above-mentioned overall technical architecture, when earthed switch mechanism is in ground state for avoiding fuse-link main carriage closing operation, be integrally formed with insulating knockout pin in ground connection moving contact knife plate outer end, with on the fuse-link main carriage to ground connection moving contact knife plate one side protrude to be provided with five anti-latch lever is spacing cooperates, stop that the fuse-link main carriage continues the combined floodgate misoperation.
The low-voltage combined type fuse blade switch on outdoor pole technical scheme that patent application of the present invention provides, the increase that combines with the existing product structure is provided with earthed switch mechanism structure, under fuse-link main carriage off-state, manipulating its earthed switch mechanism directly just can finish transformer low voltage secondary outlet side and feed out the reliable ground connection operation of electric wire or cable, make its ground connection operation more simple and convenient, and be not subjected to the restriction of any environment and objective condition; When having a power failure, the various power-supply devices that the low-voltage customer end exists oppositely send voltage by whole reliable grounds to electrical network, thereby have guaranteed the electric power netting safe running performance, have also avoided the generation of human casualty accident.
Description of drawings
Fig. 1 and Fig. 2 are respectively the structural representation of the two opposite sides of this low-voltage combined type fuse blade switch on outdoor pole
Fig. 3 is that the A of Fig. 1 is to structure chart
Fig. 4 is the structure pie graph of ground connection fixed contact 40
The master that Fig. 5, Fig. 6 are respectively the fuse-link main carriage looks part sectional structure chart and plan structure figure
Fig. 7 and Fig. 8 are respectively the two opposite sides structural representation of fuse-link main carriage separating brake, earthed switch mechanism "on" position
The state displayed map of Fig. 9 for avoiding the fuse-link main carriage to close a floodgate in the earthed switch mechanism "on" position.
Embodiment
Total assembling structure shown in above each accompanying drawing, the disclosed low-voltage combined type fuse blade switch on outdoor pole of the present patent application, be the integral combined structures of three utmost point monomer fuse blade switch, three utmost point monomer fuse blade switch in the same way, be fixed in side by side on the pedestal 1, two supporting insulators, 21 vertical fixing of each utmost point fuse blade switch are in base 2, two supporting insulators 21 are as the support component of fuse-link main carriage 3, its top is respectively equipped with mains side terminal block 22, load side terminal block 23 and mains side fixed contact assembly 24 that cooperates with fuse-link main carriage 3 switches and load side fixed contact assembly 25, the minor semiaxis 31 of fuse-link main carriage 3 one ends mounts on the support body hook 27 of mains side terminal block, and the other end of fuse-link main carriage 3 is provided with and is used to close a floodgate or the draw ring sheet 30 of sub-switching operation.The load side that is positioned at fuse blade switch is provided with earthed switch mechanism, this earthed switch mechanism is made of ground connection moving contact interlock assembly and ground connection fixed contact 40, ground connection fixed contact 40 is electrically connected and is fixed on the load side terminal block 23, cooperates with the moving contact knife plate switch of earthed switch mechanism.In this enforcement structure, ground connection fixed contact 40 is the clamping plate spring contact, fixes two static contact finger 40-2 by spacer sleeve 40-1 parallel interval, constitutes by being bolted to each fixed contact 25 1 side of low-voltage load side again.Universal driving shaft 41 in the ground connection moving contact interlock assembly is for driving the driving shaft that ground connection moving contact knife plate 42 rotated, made itself and 40 contacts of earth of ground connection fixed contact or sub-switching operation, it is arranged at the load side of base 2, is rotatably assorted with base 2, and is provided with the driving torsion spring 44 that closes a floodgate between universal driving shaft 41 and the base 2; Each utmost point ground connection moving contact knife plate 42 and separating brake pull bar 46 keys are fixed on the universal driving shaft 41, and separating brake pull bar 46 outer ends are provided with separating brake draw ring 46-1; Universal driving shaft one end also is provided with the ground connection separating brake detent mechanism that pins the earthed switch sub-gate position, in the detent mechanism of present embodiment, universal driving shaft 41 1 ends are provided with separating brake lock dog 45, be articulated in base 2 and be provided with the combined floodgate sincere sub 47 that cooperates pinning earthed switch separating brake position with separating brake lock dog 45, promptly close a floodgate and realize the location snap fit when sincere sub 47 operating side falls into the positioning spigot of separating brake lock dog 45, the external force effect is closed a floodgate the combined floodgate ring 47-1 of sincere sub 47 other ends when making its operating side break away from the positioning spigot of separating brake lock dog 45,41 of universal driving shafts are in free state, it drives ground connection moving contact knife plate 42 fast and rotates rapid and ground connection fixed contact 40 contacts of earth under its torsion spring 44 effects; Make excellent little hook pulling separating brake pull bar 46 by gram, drive ground connection moving contact knife plate 42 by universal driving shaft 41 and break away from ground connection fixed contact 40, and in rotating, separating brake makes torsion spring 44 continuous energy storage, sincere sub 47 operating sides fall within the positioning spigot of separating brake lock dog 45 until closing a floodgate, pin the separating brake position of universal driving shaft 41, this moment, torsion spring 44 was also laid in enough actuating forces for the earthed switch closing operation.
This concrete enforcement in the structure, also be provided with the various anti-misoperation mechanisms that guarantee safety.One of them is: make earthed switch contact of earth operation when each utmost point fuse blade switch also is in "on" position for avoiding misoperation pulling combined floodgate ring 47-1, vertical fixing is provided with insulation gag lever post 43 in ground connection moving contact knife plate 42, be provided with five anti-latch levers 32 to ground connection moving contact knife plate 42 1 sides protrusion on the fuse-link main carriage 3, in fuse-link main carriage 3 "on" positions, five anti-latch levers 32 are in insulation gag lever post 43 combined floodgate turn sides, stop insulation gag lever post 43 and universal driving shaft 41 contacts of earth rotation, thereby avoid the combined floodgate misoperation of ground connection moving contact interlock assembly.The purpose that is provided with of its other anti-misoperation mechanism is to avoid fuse-link main carriage 3 closing operations when being in ground state in earthed switch mechanism; at ground connection moving contact knife plate 42 outer end hot-press vulcanizations for being integrally formed with insulating knockout pin 48; in the contact of earth state; combined floodgate misoperation fuse-link main carriage 3; in rotating the rotation of closing a floodgate; the anti-latch lever 32 of on it five is stopped by this insulating knockout pin 48; and can't continue to close a floodgate; insulating knockout pin 48 is in apart from the home of fixed contact 75mm the fuse-link main carriage in design, thereby protects handling safety on structural design.
Claims (4)
1. low-voltage combined type fuse blade switch on outdoor pole, it is characterized in that being three utmost point monomer fuse blade switch entire combination structures, three utmost point monomer fuse blade switch are fixed on the pedestal (1) in the same way, side by side, the load side that is positioned at fuse blade switch is provided with earthed switch mechanism, and this earthed switch mechanism is made of with the ground connection fixed contact (40) that is connected in each utmost point load side terminals ground connection moving contact interlock assembly; Universal driving shaft (41) in its ground connection moving contact interlock assembly be arranged at monomer base (2) load side, be rotatably assorted with each monomer base, be provided with contact of earth torsion spring (44) on the universal driving shaft and between the base, key is fixed in universal driving shaft and is provided with each utmost point ground connection moving contact knife plate (42) that cooperates with each ground connection fixed contact switch, and universal driving shaft one end is provided with ground connection separating brake detent mechanism.
2. according to the low-voltage combined type fuse blade switch of claim 1, it is characterized in that its separating brake detent mechanism is: place universal driving shaft one end to be provided with a separating brake lock dog (45), be articulated in base (2) and be provided with the operating side cooperates pinning earthed switch separating brake position with separating brake lock dog (45) the sincere son of combined floodgate (47).
3. according to the low-voltage combined type fuse blade switch of claim 1, it is characterized in that being provided with insulation gag lever post (43) perpendicular to ground connection moving contact knife plate (42), fuse-link main carriage (3) is gone up to ground connection moving contact knife plate one side protrusion and is provided with the five anti-latch levers (32) that are barred from insulation gag lever post (43) contact of earth turning point.
4. according to the low-voltage combined type fuse blade switch of claim 1, it is characterized in that being integrally formed with insulating knockout pin (48), go up to ground connection moving contact knife plate one side with fuse-link main carriage (3) and protrude five anti-spacing cooperations of latch lever (32) that are provided with in ground connection moving contact knife plate (42) outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101346695A CN100565744C (en) | 2006-12-06 | 2006-12-06 | Low-voltage combined type fuse blade switch on outdoor pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101346695A CN100565744C (en) | 2006-12-06 | 2006-12-06 | Low-voltage combined type fuse blade switch on outdoor pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1971792A CN1971792A (en) | 2007-05-30 |
| CN100565744C true CN100565744C (en) | 2009-12-02 |
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ID=38112536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101346695A Expired - Fee Related CN100565744C (en) | 2006-12-06 | 2006-12-06 | Low-voltage combined type fuse blade switch on outdoor pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100565744C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2902663T3 (en) * | 2017-06-07 | 2022-03-29 | Abb Schweiz Ag | Fusible device with microswitch |
| CN109946557B (en) * | 2019-03-26 | 2024-04-26 | 国网江苏省电力有限公司扬州供电分公司 | Electronic grounding hook |
| CN113972088B (en) * | 2020-07-24 | 2024-12-06 | 贵州电网有限责任公司 | A fixed locked grounding switch |
-
2006
- 2006-12-06 CN CNB2006101346695A patent/CN100565744C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1971792A (en) | 2007-05-30 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIAONING YIDE ELECTRIC CO., LTD. Free format text: FORMER OWNER: DANDONG POWER SUPPLY DEVICE FACTORY Effective date: 20130306 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130306 Address after: 118000 No. 603 Jinshan street, Yuanbaoshan District, Liaoning, Dandong Patentee after: DANDONG POWER-SUPPLYING EQUIPMENT FACTORY Address before: 118000, No. 603 toad Avenue, Yuanbaoshan District, Liaoning, Dandong Patentee before: Dandong Power Supply Device Factory |
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| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 118000 No. 603 Jinshan street, Yuanbaoshan District, Liaoning, Dandong Patentee after: LIAONING YIDE INDUSTRIAL GROUP CO., LTD. Address before: 118000 No. 603 Jinshan street, Yuanbaoshan District, Liaoning, Dandong Patentee before: DANDONG POWER-SUPPLYING EQUIPMENT FACTORY |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20181206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |