Double-angle horizontal rotation type high-voltage isolation switch

Abstract

The invention relates to a double-angle horizontal rotation type high-voltage isolation switch, which comprises a supporting base, wherein a first bearing seat and a second bearing seat are arranged at the two ends of the supporting base in the length direction respectively, a first connecting plate is arranged at the upper end of the first bearing seat, a second connecting plate is arranged at the upper end of the second bearing seat, a transmission system comprises a transmission rod, a third bearing seat, a crank arm, a first connecting rod and a second connecting rod, the third bearing seat downwards penetrates through the supporting base to be connected with the transmission rod, the crank arm is installed at the upper end of the third bearing seat, two ends of the first connecting rod are respectively hinged with the first connecting plate and the second connecting plate, two ends of the second connecting rod are respectively hinged with the second connecting plate and the crank arm, and when the crank arm rotates by 90 degrees or 180 degrees, the first connecting plate and the second connecting plate can rotate by 90 degrees. According to the invention, the isolation switch can adapt to 90-degree and 180-degree operating mechanisms, the bearing seat is not rusted in long-term use, the loss in use can be effectively compensated, the service life is far longer than that of a common isolation switch, and the isolation switch has a relatively good application prospect.

Description

technical field [0001] The invention belongs to the technical field of isolating switches, and in particular relates to a double-angle horizontal rotary high-voltage isolating switch. Background technique [0002] When electrical equipment is powered off or overhauled, the outdoor isolating switch disconnects a small current under no-load conditions. The isolating switch will isolate the equipment that needs power failure from the power supply, forming an obvious disconnection point to ensure the safety of staff and equipment. The isolating switch needs to be replaced after reaching the end of its service life. The following problems are usually encountered during transformation: [0003] 1) The operating mechanism of the double-column horizontal rotary isolating switch currently on the market can be rotated 180 degrees, or rotated 90 degrees to match different operating mechanisms; when the isolating switch needs to be replaced, if the rotation angle of the new isolating sw...

AI Technical Summary

Problems solved by technology

[0003] 1) The operating mechanism of the double-column horizontal rotary isolating switch currently on the market can be rotated 180 degrees, or rotated 90 degrees to match different operating mechanisms; when the isolating switch needs to be replaced, if the rotation angle of the new isolating switch is the same as The rotation angle of the operating mechanism does not match (commonly used isolating switches can only adapt to one crank angle, and the installation positions of different mechanisms are completely different, so the operating mechanism that rotates 180 degrees and the operating mechanism that rotates 90 degrees cannot be used in common), which will cause relatively large It is necessary to replace or modify the equipment, which will affect the work efficiency and increase the cost; moreover, it is difficult for the general staff of this kind of matching organization to judge which one is needed (maybe the default purchase is 90 degrees), once there is a procurement error , the isolation switch needs to be replaced and cannot be matched, which will cause a large delay in the maintenance process

[0004] 2) The replacement of the isolating switch will also face the problem of re-arranging the cable position due to the change of position

[0005] 3) Commonly used isolating switches adopt a 90° mechanism, and all of them use shafts under the bearing seat, and the product is prone to jamming and cannot be separated or closed

Due to the limitation of the transmission structure (the transmission shaft needs to be connected with the bearing seat), the isolating switch bearing seat cannot use a sealed bearing seat; this is prone to corrosion of the bearing seat, and the phenomenon of stagnation due to the non-moving operation of the isolating switch

[0006] 4) During long-term use, the transmission system will suffer loss, which is prone to the problem of incorrect positioning status; the vertical rod of commonly used isolating switch products is directly connected to the shaft of the bearing seat, and the loss during the transmission process cannot be effectively compensated

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