Key exchange box with logic control, and method for applying key exchange box to switch cabinet
A logic control and switch cabinet technology, applied in the field of key exchange boxes, can solve the problems of inability to drive loads and effectively prevent hazards, and achieve the effects of simple structure, convenient installation and small size
Pending Publication Date: 2021-01-22
NATUS CHANGZHOU ELECTRIC
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Problems solved by technology
Usually, the mechanism of three lock cylinders and two keys will be used in this situation. This machine adopts the characteristics of one key and one mechanism, that is, the key must be used to operate the circuit breaker to close. In actual operation, the keys are all kept manually, which cannot effectively prevent two Hazards caused by simultaneous electrification of incoming lines and contacts
Moreover, this kind of three-cylinder two-key lock cylinder mechanism is only suitable for the case where the capacity of the two incoming lines is the same. If the capacity of the two incoming lines is different, it will cause the situation that the load cannot be driven.
Method used
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[0034] Two out of three solution: image 3Among them, the key lock cylinder 1-3 on the key box is vertical, and the key can be taken; the key lock cylinder 2 1-2 is in the horizontal state, and the key cannot be taken, and the key lock cylinder 1-1 on the key box is vertical, and the key can be taken . Take off the keys on the key lock core three 1-3 and the key lock core one 1-1 at this time and place them on the switch cabinet one and the switch cabinet three respectively, and the key rotates the lock cores on the switch cabinet one and the switch cabinet three to a level of 90°, That is to say, the switches of switch cabinet 1 and switch cabinet 3 can be operated for closing operation. The key cannot be taken out after the switch is closed, and can only be taken out by turning it after the switch is opened.
[0035] One out of three options: Figure 4 In , it is necessary to go from the two out of three state to the one out of three state. Turn the key lock cylinder thr...
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The invention relates to the technical field of high-voltage power distribution cabinets, particularly to a key exchange box with logic control, and a method for applying the key exchange box to a switch cabinet. The key exchange box comprises a key box, which is fixed on a panel of a control box and is connected with a first key lock core, a second key lock core and a third key lock core, whereinthe first key lock core, the second key lock core and the third key lock core are each connected with a key, the front portion of the first key lock core, the front portion of the second key lock core and the front portion of the third key lock core are connected with a first cam, a second cam and a third cam respectively, and the joints guarante that notches of the first cam, the second cam andthe third cam are consistent with the key lock cores in direction. According to the invention, the key exchange box with logic control not only can be used in a two-wire access connection scheme of ahigh-voltage switch, but also can be used in a low-voltage key lock cylinder mechanism; and the logic control exchange box device is an exchange control concept, and can be used for any multi-point control and different operation sequences through key transfer exchange.
Description
technical field [0001] The invention relates to a key exchange box, in particular to a key exchange box with logic control and a method for applying it to a switch cabinet. Background technique [0002] In the high-voltage and low-voltage power distribution system scheme, it is often encountered the scheme of two incoming lines plus one connection, two high-voltage schemes, one input and one standby, and the bus tie is connected, or two incoming lines are put into use at the same time and the bus tie is disconnected. Usually, the mechanism of three lock cylinders and two keys will be used in this situation. This machine adopts the characteristics of one key and one mechanism, that is, the key must be used to operate the circuit breaker to close. In actual operation, the keys are all kept manually, which cannot effectively prevent two The hazards caused by the incoming line and contact being charged at the same time. Moreover, this type of three-cylinder two-key lock cylinde...
Claims
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Login to View More IPC IPC(8): H01H9/26H01H9/28H02J9/06
CPCH01H9/26H01H9/285H02J9/06
Inventor 邵曙光吴泽君陆涛冯磊钱良邱佃保
Owner NATUS CHANGZHOU ELECTRIC