CN-224204024-U - Combined column vacuum circuit breaker

CN224204024UCN 224204024 UCN224204024 UCN 224204024UCN-224204024-U

Abstract

The utility model discloses a combined column vacuum circuit breaker, and relates to the technical field of vacuum circuit breakers. The switch device comprises a mechanism box, wherein the outer wall of the top of the mechanism box is fixedly connected with an arc extinguish chamber, the outer wall of the arc extinguish chamber is fixedly connected with a current transformer, the switch device comprises a positioning frame, the inner wall of the positioning frame is rotationally connected with a wheel shaft, the outer wall of the wheel shaft is rotationally connected with an ejector rod, the outer wall of the top of the ejector rod is slidingly connected with a knife blade, the outer wall of the knife blade is rotationally connected with a connecting device, two ends of the wheel shaft are fixedly connected with rotating frames, and the connecting device is arranged to utilize the arrangement of a compression spring and a limiting rod, so that the knife blade rotates around a fixing frame, the circuit connection is ensured to be stable and reliable, the installation process of the knife blade is simplified, the installation time of the knife blade is saved, and the circuit connection is ensured to be stable.

Inventors

HUANG XIANG
YE MEI
DENG JIAXIN
Cheng Haoxuan

Assignees

杭州华创高科有限公司

Dates

Publication Date: 20260505
Application Date: 20250414

Claims (5)

1. The utility model provides a vacuum circuit breaker on combination formula post, includes mechanism case (1), the outer wall fixedly connected with explosion chamber (2) at mechanism case (1) top, the outer wall fixedly connected with current transformer (3) of explosion chamber (2), its characterized in that still includes: The switch device (4), the switch device (4) comprises a positioning frame (41), the inner wall of the positioning frame (41) is rotationally connected with a wheel shaft (43), the outer wall of the wheel shaft (43) is rotationally connected with an ejector rod (44), the outer wall of the top of the ejector rod (44) is slidingly connected with a knife switch (45), the outer wall of the knife switch (45) is rotationally connected with a connecting device (46), and two ends of the wheel shaft (43) are fixedly connected with rotating frames (42); The connecting device (46) comprises a connecting disc (461), an inserting shaft (462) is fixedly connected to the outer wall of the connecting disc (461), a fixing frame (463) is fixedly connected to one end, far away from the inserting shaft (462), of the connecting disc (461), a sliding rod (464) is slidably connected to the inner wall of the fixing frame (463), a compression spring (465) is sleeved on the outer wall of the sliding rod (464), a limiting rod (466) is fixedly connected to the outer wall of the sliding rod (464), the limiting rod (466) is slidably connected with the inner wall of the fixing frame (463) through a limiting groove (467), and the limiting groove (467) is formed in the wall of the fixing frame (463); Stop device (6), stop device (6) are including connecting strip (61), outer wall fixedly connected with sliding block (62) at connecting strip (61) both ends, dodge groove (63) has been seted up to the outer wall of sliding block (62), one end fixedly connected with telescopic link (64) that connecting strip (61) was kept away from to sliding block (62), the outer wall cover of telescopic link (64) is equipped with extrusion spring (65).
2. The combined column vacuum circuit breaker according to claim 1, wherein the outer wall of the rotating frame (42) is in sliding connection with the side wall of the mechanism box (1) through a sliding groove (5), the sliding groove (5) is formed in the wall of the rotating frame (42), and the outer wall of the positioning frame (41) is fixedly connected with the outer wall of the mechanism box (1).
3. A combined column vacuum circuit breaker according to claim 1 is characterized in that the outer wall of the insertion shaft (462) and the outer wall of the connecting disc (461) are fixedly connected with the outer wall of the current transformer (3), the outer wall of the fixing frame (463) is in sliding connection with the outer wall of the knife switch (45), and the outer wall of the limit rod (466) is in rotary connection with the outer wall of the knife switch (45).
4. A modular on-column vacuum circuit breaker as in claim 1 wherein one end of the compression spring (465) is fixedly connected to the inner wall of the mount (463) and the other end of the compression spring (465) is fixedly connected to the outer wall of the stop lever (466).
5. A combined column vacuum circuit breaker according to claim 1 is characterized in that the outer wall of the sliding block (62) is in sliding connection with the inner wall of the mechanism box (1), one end of the extrusion spring (65) is fixedly connected with the inner wall of the mechanism box (1), and the other end of the extrusion spring (65) is fixedly connected with the outer wall of the sliding block (62).

Description

Combined column vacuum circuit breaker Technical Field The utility model relates to the technical field of vacuum circuit breakers, in particular to a combined column vacuum circuit breaker. Background In an electric power system, a vacuum circuit breaker on a column is used as key equipment for guaranteeing safe and stable operation of an overhead line, and is widely applied to the scenes of segmentation, connection, protection and the like of an overhead line, whether the situation is fine management of an urban power grid or upgrading and reconstruction of a rural power grid, the vacuum circuit breaker on the column bears important tasks, however, the existing vacuum circuit breaker on the column has defects in installation and operation stability, the structure of the traditional vacuum circuit breaker on the column is complex, operators are required to carry out complicated connection and fixing operation at high altitude in the installation process, and meanwhile, in the operation process, due to the lack of effective limiting and stabilizing mechanisms, when the circuit breaker is at high altitude and needs to be disconnected, operators are difficult to control the position of the knife, the phenomenon of falling back easily occurs to the knife, the phenomenon cannot be effectively cut off the circuit, the equipment is possibly damaged due to arc reignition, the safe operation of the electric power system is threatened, and the electric power maintenance cost and risk are increased. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides the combined type on-column vacuum circuit breaker, the installation flow is simplified through the connecting device, the operation safety is ensured by means of the stable limiting and sliding structure, the defects of the traditional equipment are overcome, the installation efficiency and the running stability of the on-column vacuum circuit breaker are improved, and the guarantee is provided for the reliable power supply of a power system. (II) technical scheme The combined column vacuum circuit breaker comprises a mechanism box, wherein an arc extinguish chamber is fixedly connected to the outer wall of the top of the mechanism box, a current transformer is fixedly connected to the outer wall of the arc extinguish chamber, the combined column vacuum circuit breaker further comprises a switch device, the switch device comprises a positioning frame, the inner wall of the positioning frame is rotationally connected with a wheel shaft, the outer wall of the wheel shaft is rotationally connected with an ejector rod, the outer wall of the top of the ejector rod is slidingly connected with a knife switch, the outer wall of the knife switch is rotationally connected with a connecting device, and two ends of the wheel shaft are fixedly connected with rotating frames; Preferably, the connecting device comprises a connecting disc, the outer wall fixedly connected with of connecting disc inserts the axle, the one end fixedly connected with mount that the axle was inserted is kept away from to the connecting disc, the inner wall sliding connection of mount has the slide bar, the outer wall cover of slide bar is equipped with compression spring, the outer wall fixedly connected with gag lever post of slide bar, the gag lever post passes through the inner wall sliding connection of spacing groove and mount, and the spacing groove is seted up in the wall of mount, through setting up connecting device, utilizes the setting of compression spring and gag lever post, simplifies the knife installation process, saves installation knife installation time, has ensured simultaneously that circuit connection is firm. Preferably, the outer wall of rotating the frame passes through sliding tray and the lateral wall sliding connection of mechanism case, and the sliding tray is seted up in the wall of rotating the frame, the outer wall of locating rack and the outer wall fixed connection of mechanism case, the outer wall of inserting the axle and the outer wall of connection pad all with current transformer's outer wall fixed connection, the outer wall of mount and the outer wall sliding connection of plug-in strip, the outer wall of gag lever post is rotated with the outer wall of plug-in strip and is connected, compression spring's one end and the inner wall fixed connection of mount, compression spring's the other end and the outer wall fixed connection of gag lever post. Preferably, stop device includes the connecting strip, the outer wall fixedly connected with sliding block at connecting strip both ends, dodge the groove has been seted up to the outer wall of sliding block, the one end fixedly connected with telescopic link of connecting strip is kept away from to the sliding block, the outer wall cover of telescopic link has extrusion spring, the outer wall and the inner wall sliding connection of mechanism ca