TWM370174U - Hook-type cut-off safety lock for circuit maintenance and repair of no-fuse breaker - Google Patents

Description

M370174 V. New description: [New technical field] No fuse circuit breaker circuit maintenance hook type power failure safety lock. Ensure personnel equipment is safe. [Prior Art] No fuse circuit breaker manufacturing technology. , [New content], no fuse circuit breaker circuit maintenance hook type power failure safety lock. • Install the “Fuseless Circuit Breaker” on the F-Fuseless Circuit Breaker Body Cover with the original “Made-free Circuit Breaker” manufactured by the company. Prevent the “Fuseless Circuit Breaker” open circuit maintenance circuit. During maintenance, any other unrelated personnel may open the "Fuseless Circuit Breaker" without permission to cause a power failure of the repair circuit or equipment. [Embodiment] The circuit is installed in the no-fuse circuit breaker to repair the hook-type power-off safety lock. The "Fuseless Circuit Breaker Body Cover" as shown in the figure (Fig. 1) Description #1 "Install the circuit maintenance check type power failure safety lock as shown in the figure (Fig. 1) Description #3 and #4" After the normal use and installation, the circuit breaker is operated on the front as shown in the figure (Fig. 2); when the maintenance of the power failure circuit is performed, the circuit maintenance check is activated after the power is cut off to make the F check type The power-off safety lock device is as shown in the figure (Fig. 3). #4』Clamp 3 M3 70174 F-free fuse circuit breaker common trip and power-off device as shown in the figure (Fig. 1) Description #5』 and remove the * circuit repair The key of the hook-type power-off safety lock is as shown in the figure (Fig. 1). Description #2』Lock the circuit to make the fuseless circuit breaker in the open circuit lock state, in case the non-electrician can start the fuseless circuit breaker freely, resulting in electrical Accidents occur; to ensure safe use of electricity. [Simple diagram of the diagram] Figure 1: No-fuse circuit breaker circuit maintenance hook-type power-off safety lock diagram Figure 2: No-fuse circuit breaker power-off safety lock device diagram Figure 3: hook-type power-off safety lock diagram [main components Explanation of Symbols Explanation of Main Components Symbols: Symbols Main Components Symbol Description #1 No fuse circuit breaker body cover #2 Power failure safety lock key #3 Power failure safety lock #4 Check type power failure safety lock device #5 No fuse line disconnection Common tripping and disconnecting device

Claims (1)

M370174 Sixth, the scope of application for patents: 1. A fuseless circuit breaker circuit maintenance hook type power failure safety lock, the fuseless circuit breaker system includes an upper cover, a casing and a tripping mechanism; the tripping mechanism further comprises: an operating handle, The operating handle has a through hole for being rotatably coupled to the fixed shaft of the outer casing to operate the opening (OFF) and the conducting (ON) of the non-fuse circuit breaker; a support seat rotatably coupled to the support base a fixed contact shaft fixed to the outer casing; a movable contact, the upper end of the movable contactor and the support seat are sleeved on the fixed shaft of the outer casing φ; a tripping rod, the tripping rod is common to the fuseless circuit breaker Jumping off the power-off device, one end of the jump-rod is connected to the reset rod, and the other end is slidably connected to the guiding groove of the outer casing; an over-current protection bimetal; the bimetal is fixed on the conductor of the outer casing by Adjust the screw to adjust the protection of the overcurrent, and drive the common tripping and disconnecting device to achieve the electrical protection function; • A fixed moving contact, the fixed contact is fixed on the outside as a power source Introduced; a fuseless circuit breaker circuit maintenance hook-type power-off safety 鏔, using a round plastic mechanical bolt-type fixed town, connected to the top of the fuseless circuit breaker cover, and the hook-type power-off safety town device, connected to jump The pull-out lever is opened or locked by the power-off safety lock to drive the hook-type power-off safety lock device to control the trip bar. 5 M3 70174 2. The circuit maintenance hook-type power-off safety lock mentioned in the first paragraph of the patent application scope is placed on the front operation panel of the fuse-free circuit breaker after the normal use of the fuse-free circuit breaker is completed; When the power-off circuit is repaired, the lock circuit is repaired after the power is cut off, and the hook-type power-off safety lock is locked, so that the hook-type power-off safety lock device is stuck with the fuse-free circuit breaker common trip and power-off device; and the circuit maintenance hook is removed. The key of the power-off safety lock locks the circuit to put the fuseless circuit breaker in the OFF state to prevent non-electrical personnel from arbitrarily starting the fuse-free circuit breaker, causing electrical accidents; g ensuring personnel safety. 3 ·If the circuit maintenance hook type power-off safety lock mentioned in the first paragraph of the patent application scope is used, the power-off safety lock is operated by the power-off safety lock key to drive the hook type power-off safety lock device to lock or open the fuse-free circuit breaker common. The power-off device is tripped to achieve the operation or locking function of the fuseless circuit breaker. 6