Utility model content
The utility model takies size and the maintenance inconvenience of switch cubicle in order to solve earthed switch, thus provides a kind of Direct Action Type earthed switch be arranged under switch cubicle median septum.
For solving the problem, the technical solution of the utility model is as follows:
A kind of Direct Action Type earthed switch, described earthed switch comprises a mounting panel, described mounting panel is arranged on below the median septum of switch cubicle, described mounting panel is provided with rotary main shaft, energy-stored spring, connecting rod and transmission mechanism successively, described rotary main shaft is connected with energy-stored spring and connecting rod respectively, described connecting rod matches with transmission mechanism, described connecting rod can promote transmission mechanism displacement, described transmission mechanism is provided with moving contact, and described moving contact can contact with the fixed contact in current transformer in switch cabinet.
In a preferred embodiment of the present utility model, described rotary main shaft matches with energy-stored spring and connecting rod formation one crank block structure, and can be energy-stored spring energy storage when described rotary main shaft rotates, described energy-stored spring can promote rotary main shaft fast rotational.
In a preferred embodiment of the present utility model, described transmission mechanism comprises chain and runs in and short circuit row, and chain runs in and to connect as one with connecting rod by described short circuit row, and described link row of horizontal is arranged on a mounting board, and described chain top of running in is provided with moving contact.
By technique scheme, the beneficial effects of the utility model are:
The utility model structure is simple, easy to use, easy for installation, maintenance convenient, and with switch cubicle perfect adaptation, do not take switch cubicle size, take full advantage of the baffle space bottom circuit breaker, greatly saved the usage space of switch cubicle.
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See Fig. 1 and Fig. 2, a kind of Direct Action Type earthed switch that the utility model provides, its can integral installation below the median septum 110 of switch cubicle 100, between cable vault and breaker chamber 120, like this with switch cubicle 100 perfect adaptation, do not take switch cubicle 100 size, take full advantage of dividing plate 110 space bottom circuit breaker, greatly saved the overall usage space of switch cubicle 100.
In addition, because the utility model is directly installed on below median septum 110, make like this utility model before cabinet very close to, very convenient installation and maintenance.
Be arranged on below median septum 110 in order to the utility model can be made, the utility model comprises a mounting panel 200, mounting panel 200 is fixed by screws in below median septum 110, mounting panel 200 is provided with rotary main shaft 210, energy-stored spring 220, connecting rod 230 and transmission mechanism 240 successively, mounting panel 200 by aggregates for above-mentioned component integration, so just can be able to be arranged on below median septum 110.
Rotary main shaft 210 is connected with one end of energy-stored spring 220, and the other end of energy-stored spring 220 is fixed on mounting panel 200, and rotary main shaft 210 can rotate on mounting panel 200, and rotary main shaft 210 when rotated, can be energy-stored spring 220 energy storage.
Energy-stored spring 220, it is the energy for storing when rotary main shaft 210 rotates, and, after the energy storage of energy-stored spring 220 reaches maximum, if rotary main shaft 210 also continues to rotate, energy-stored spring 220 can rebound the energy of release storage, and energy-stored spring 220 can promote rotary main shaft 210 and rotate in opposite direction fast.
Connecting rod 230, its one end and rotary main shaft 210 are connected, and the other end is connected with transmission mechanism 240, when energy-stored spring 220 promote rotary main shaft 210 rotate in opposite direction fast time, promote transmission mechanism 240 fast at mounting panel 200 top offset.
Like this, rotary main shaft 210 matches with energy-stored spring 220 and connecting rod 230 can form a crank block structure, rotate storage power by rotary main shaft 210, then by energy-stored spring 220 by fault offset out, promote transmission mechanism 240 by connecting rod 230 and move.
Transmission mechanism 240 comprises chain and to run in 241 and short circuit row 242, and chain to run in and 241 to connect as one with connecting rod 230 by short circuit row 242, and when connecting rod 230 is driven fast rotational by rotary main shaft 210, chain runs in and 241 can carry out displacement under the drive of short circuit row 242;
Chain runs in 241, it is horizontally set on mounting panel 200, chain run in 241 top be provided with moving contact 300, when chain runs in 241 reach, chain runs in and 241 can promote moving contact 300 and contact with the fixed contact 310 on current transformer 130 in switch cubicle 100, thus realizes switch and close a floodgate.
When needs switch separating brake, only rotary main shaft 210 need be rotated in opposite direction, moving contact 300 is separated with fixed contact 310.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.