CN218038985U

CN218038985U - 10kV isolating switch

Info

Publication number: CN218038985U
Application number: CN202222310370.8U
Authority: CN
Inventors: 周军; 夏周龙; 赵明伟; 张思保; 张恒辩
Original assignee: High Electric Co ltd
Current assignee: High Electric Co ltd
Priority date: 2022-08-27
Filing date: 2022-08-27
Publication date: 2022-12-13
Anticipated expiration: 2032-08-27

Abstract

The utility model relates to a 10kV isolator, including chassis, rotation setting pivot on the chassis, set up at pivot one end handle, set up three switch module on the chassis respectively, set up the three pull rod between pivot and three switch module respectively, chassis and pivot between be provided with divide-shut brake positioning mechanism, divide-shut brake positioning mechanism including the linkage set up in the pivot locating plate, set up on the chassis and with locating plate matched with fixed plate, the fixed plate on be provided with the locating pin, the locating plate on be provided with respectively with locating pin matched with combined floodgate positioning hook, separating brake positioning hook, combined floodgate positioning hook, separating brake positioning hook just contradict on the locating pin respectively along with the locating plate action, and constitute the spacing cooperation of locating plate and locating pin. The utility model has the advantages of simple structure, stable and reliable performance and high safety.

Description

10kV isolating switch

Technical Field

The utility model relates to a isolator, concretely relates to 10kV isolator.

Background

The high-voltage isolating switch is an important switching device in an electric system of a power plant and a transformer substation and needs to be matched with a high-voltage circuit breaker for use. The isolating switch is suitable for indoor devices with three-phase alternating current of 50Hz and rated voltage of 12 KV. For switching on, switching off or switching over the line in the event of a voltage-loaded train load of the high-voltage installation. The main functions are as follows: the safety of the high-voltage electrical appliance and the device during maintenance work is ensured, and the voltage isolation function is achieved. The existing 10kV isolating switch is unreasonable in structural design, the isolating blade and the tool apron are easy to automatically fall off, the isolating switch does not have a switching-on and switching-off positioning function, and the isolating switch cannot be guaranteed to be switched on and off reliably, so that the isolating switch has the defects of complex structure and unreliable performance.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a 10kV isolator of simple structure, stable performance reliable, high security.

For realizing the above-mentioned purpose, the utility model discloses a 10kV isolator, including chassis, rotation setting pivot on the chassis, set up at pivot one end handle, set up three switch module on the chassis respectively, set up the three pull rod between pivot and three switch module respectively, chassis and pivot between be provided with divide-shut brake positioning mechanism, divide-shut brake positioning mechanism including the linkage set up in the epaxial locating plate of pivot, set up on the chassis and with locating plate matched with fixed plate, the fixed plate on be provided with the locating pin, the locating plate on be provided with respectively with locating pin matched with combined floodgate positioning hook, separating brake positioning hook, combined floodgate positioning hook, separating brake positioning hook just contradict on the locating pin respectively along with the locating plate action, and constitute the spacing cooperation of locating plate and locating pin.

The beneficial effect of above-mentioned structure is: this be provided with divide-shut brake positioning mechanism on isolator, divide-shut brake positioning mechanism can play the positioning action, and at the during operation, closing a floodgate positioning hook, separating brake positioning hook just contradict on the locating pin respectively along with the locating plate action, and the locating pin can play the positioning action to the locating plate on the countershaft, is favorable to improving this isolator divide-shut brake's reliability. Therefore, the isolating switch has the advantages of simple structure, stable and reliable performance and high safety.

Particularly, the positioning plate is provided with an arc guide part in transition connection between the closing positioning hook and the opening positioning hook, and the positioning pin can slide along the arc guide part and can be switched between the closing positioning hook and the opening positioning hook in a reciprocating mode. The cambered surface guide part can play a role in guiding the positioning pin, and is favorable for improving the operational reliability of the disconnecting switch on-off switch.

Particularly, the switch module including set up the first insulator on chassis one end, set up the first blade holder on the first insulator, rotate set up on first blade holder and with pull rod linkage complex keep apart blade, set up the second insulator on the chassis other end, set up on the second insulator and with keep apart blade matched with second blade holder, the isolation blade include the blade that two symmetries set up, two blade one end be provided with second blade holder matched with contact, two blades on correspond one side department of contact and be provided with spring assembly. The spring assembly is arranged on the isolation blade, the contact pressure between the contact and the second cutter holder can be increased by the spring assembly, the contact between the isolation blade and the second cutter holder is more compact, the isolation blade and the second cutter holder are not easy to automatically fall off, and therefore the working reliability of the isolation switch is improved.

Particularly, the spring assembly comprises bolts arranged on the two blades, nuts arranged on the bolts, and springs sleeved on the bolts, wherein a first spring seat and a second spring seat are respectively arranged at two ends of the bolts corresponding to the springs, two ends of each spring are respectively clamped in the first spring seat and the second spring seat, the first spring seat abuts against the nuts, and the second spring seat abuts against one of the blades. The spring assembly can enhance the contact pressure of the two blades on the second cutter holder, the contact pressure is higher, the contact is more reliable, and therefore the working reliability of the isolating switch is improved.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is a cross-sectional view of an embodiment of the present invention.

Fig. 3 is a perspective view of an isolation blade according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1-3, the embodiment of the utility model provides a 10kV isolator, including chassis 10, rotate pivot 11, setting up at 11 epaxial handles 12 of pivot, set up three switch module 20 on chassis 10 respectively, set up three pull rod 13 between pivot 11 and three switch module 20 respectively of rotating, chassis 10 and pivot 11 between be provided with divide-shut brake positioning mechanism 30, divide-shut brake positioning mechanism 30 including the linkage set up at 11 epaxial locating plates 31 of rotating, set up on chassis 10 and with locating plate 31 matched with fixed plate 32, fixed plate 32 on be provided with locating pin 33, locating plate 31 on be provided with respectively with locating pin 33 matched with combined floodgate positioning hook 311, separating brake positioning hook 312, combined floodgate positioning hook 311, separating brake positioning hook 312 move along with locating plate 31 and contradict respectively on locating pin 33, and constitute the spacing cooperation of locating plate 31 and locating pin 33. The positioning plate 31 is provided with a cambered surface guide part 313 transitionally connected between the closing positioning hook 311 and the opening positioning hook 312, and the positioning pin 33 can slide along the cambered surface guide part 313 and can be switched between the closing positioning hook 311 and the opening positioning hook 312 in a reciprocating manner. The cambered surface guide part can play a role in guiding the positioning pin, and is favorable for improving the operational reliability of the opening and closing of the isolating switch. The switch assembly 20 includes a first insulator 21 disposed at one end of the chassis 10, a first holder 22 disposed on the first insulator 21, an isolation blade 23 rotatably disposed on the first holder 22 and cooperating with the pull rod 13 in a linkage manner, a second insulator 24 disposed at the other end of the chassis 10, and a second holder 25 disposed on the second insulator 24 and cooperating with the isolation blade 23, wherein the isolation blade 23 includes two symmetrically disposed blades 231, one end of each of the two blades 231 is provided with a contact 232 cooperating with the second holder 25, and a spring assembly 26 is disposed at one side of the corresponding contact 232 of the two blades 231. The spring assembly is arranged on the isolation blade, the contact pressure between the contact and the second cutter holder can be increased by the spring assembly, the contact between the isolation blade and the second cutter holder is more compact, the isolation blade and the second cutter holder are not easy to automatically fall off, and therefore the working reliability of the isolation switch is improved.

As shown in fig. 3, the spring assembly 26 includes a bolt 261 disposed on the two blades 231, a nut 262 disposed on the bolt 261, and a spring 263 sleeved on the bolt 261, wherein a first spring seat 264 and a second spring seat 265 are respectively disposed on the bolt 261 corresponding to two ends of the spring 263, two ends of the spring 263 are respectively engaged in the first spring seat 264 and the second spring seat 265, the first spring seat 264 abuts against the nut 262, and the second spring seat 265 abuts against one of the blades 231. The spring assembly can enhance the contact pressure of the two blades on the second cutter holder, the contact pressure is higher, the contact is more reliable, and therefore the working reliability of the isolating switch is improved.

This be provided with divide-shut brake positioning mechanism on isolator, divide-shut brake positioning mechanism can play the positioning action, and at the during operation, closing a floodgate positioning hook, separating brake positioning hook just contradict on the locating pin respectively along with the locating plate action, and the locating pin can play the positioning action to the locating plate on the countershaft, is favorable to improving this isolator divide-shut brake's reliability. Therefore, the isolating switch has the advantages of simple structure, stable and reliable performance and high safety.

Claims

1. The utility model provides a 10kV isolator, includes the chassis, rotates pivot, setting handle, three switch module, three pull rods, its characterized in that set up respectively between pivot and three switch module that set up on the chassis, set up at pivot one end: chassis and pivot between be provided with divide-shut brake positioning mechanism, divide-shut brake positioning mechanism including the linkage set up in the epaxial locating plate of commentaries on classics, set up on the chassis and with locating plate matched with fixed plate, the fixed plate on be provided with the locating pin, the locating plate on be provided with respectively with locating pin matched with combined floodgate location hook, separating brake location hook, combined floodgate location hook, separating brake location hook just contradict on the locating pin respectively along with the locating plate action, and constitute the spacing cooperation of locating plate and locating pin.

2. The 10kV disconnector of claim 1, wherein: the positioning plate is provided with an arc surface guide part in transition connection between the closing positioning hook and the opening positioning hook, and the positioning pin can slide along the arc surface guide part and can be switched between the closing positioning hook and the opening positioning hook in a reciprocating mode.

3. The 10kV disconnector according to claim 1 or 2, wherein: switch module including setting up at chassis one end on the first insulator, set up on the first insulator first blade holder, rotate the setting on first blade holder and with pull rod linkage complex isolation blade, set up the second insulator on the chassis other end, set up on the second insulator and with keep apart blade matched with second blade holder, the isolation blade include the blade that two symmetries set up, two blade one end be provided with second blade holder matched with contact, two blades on correspond one side department of contact and be provided with spring assembly.

4. The 10kV disconnector according to claim 3, wherein: the spring assembly comprises bolts arranged on the two blades, nuts arranged on the bolts, and springs sleeved on the bolts, wherein a first spring seat and a second spring seat are arranged at two ends of each corresponding spring on the bolts respectively, two ends of each spring are clamped in the first spring seat and the second spring seat respectively, the first spring seat is abutted on the nuts, and the second spring seat is abutted on one of the blades.