A closing spring assembly for an electrical switching device is provided. The closing spring assembly is configured to exert a closing force on a moving contact of the switching device. The closing force helps to maintain physical and electrical contact between the moving contact and an associated stationary contact, so that the moving and stationary contacts form a path for conducing electric current through the switching device. The closing spring assembly is configured so that the closing force remains constant or decreases as the moving contact is driven away from the stationary contact during switching of the current path away from the moving and stationary contacts.

A dual energy storage operating mechanism of an isolating switch is provided. A first energy storage mechanism and a second energy storage mechanism are provided between an input wheel and a housing and between the input wheel and an output wheel or a first output shaft, respectively. The output wheel is provided with a limiting mechanism. The limiting mechanism forms a locking effect on the output wheel when the first energy storage mechanism stores energy, thereby enabling the second energy storage mechanism to store energy at the same time. When the first energy storage mechanism starts to release energy, the locking effect of the limiting mechanism is released, so that the output wheel and the first output shaft can rotate, and the first energy storage mechanism and the second energy storage mechanism release energy at the same time, forming a dual energy storage boosting effect.

The invention relates to an operating mechanism for opening and closing at least one contact, which operating mechanism comprises, a base frame, a bridge body movable relative to the base frame between a closed position and an opened position, a rod mechanism of a first and a second link, a cam arranged on a shaft, a locking lever fixedly arranged with one end to the first link and moves with the first rod between a locked position and an unlocked position, a control shaft having a D-shaft portion with a flat surface portion and a semi cylindrical surface portion, and a lock position, in which the path of the second end of the locking lever intersects with the circumference of the cross-section of the D-shaft portion.

The invention relates to an operating mechanism for opening and closing at least one contact, which operating mechanism comprises, a base frame, a bridge body movable relative to the base frame between a closed position and an opened position, a rod mechanism of a first and a second link, a cam arranged on a shaft, a locking lever fixedly arranged with one end to the first link and moves with the first rod between a locked position and an unlocked position, a control shaft having a D-shaft portion with a flat surface portion and a semi cylindrical surface portion, and a lock position, in which the path of the second end of the locking lever intersects with the circumference of the cross-section of the D-shaft portion.

The invention relates to a device for operating a switch having an operating lever for moving the switch between the open and closed position and an operating pin arranged to a moving part of the switch, wherein the device comprises a primary shaft, a secondary shaft arranged coaxially with the primary shaft, a coupling arranged between the primary shaft and the secondary shaft, a spring, a control lever extending in a radial direction from the primary shaft, a latch having a disengage lever extending in a radial direction from the primary shaft and a roller movable into the path of the disengage lever to limit rotation of the primary shaft in the first rotational direction; and, a reset lever extending in a radial direction from the secondary shaft.

A balance spring assembly for a disconnector comprises a push rod partially and coaxially arranged in a blade of the disconnector which is rotatable about a first shaft to change an operation status of the disconnector, a first end of the push rod fixed to a second shaft so that the push rod is rotatable about the second shaft; and a spring arranged in the blade and around the push rod, the spring held between a second end of the push rod and an end of the blade adjacent to the first shaft, wherein the second shaft is arranged parallel to the first shaft to enable the push rod to axially move in the blade with a rotation of the blade to thereby compress or decompress the spring. By arranging the balance spring assembly at least in part in the blade of the disconnector, only one set of the springs is needed.

A remote switch-off mechanism and a rotary switch relates to the field of electrical technologies. A housing, an energy storage component, and a tripping component are provided. The energy storage component includes a latch, an energy storage spring, a rotating shaft, and an energy storage panel connected to the rotating shaft, an abutting portion is disposed on the energy storage panel, a first end of the energy storage spring is clamped to the housing, and a second end of the energy storage spring abuts against the abutting portion. The latch includes a hinged portion hinged to the housing, a limiting portion for limiting the second end of the energy storage spring, and a tripping portion that cooperates with the tripping component, and an elastic member is disposed between the latch and the housing, so that the tripping portion has a trend of moving toward the tripping component.

A remote switch-off mechanism and a rotary switch relates to the field of electrical technologies. A housing, an energy storage component, and a tripping component are provided. The energy storage component includes a latch, an energy storage spring, a rotating shaft, and an energy storage panel connected to the rotating shaft, an abutting portion is disposed on the energy storage panel, a first end of the energy storage spring is clamped to the housing, and a second end of the energy storage spring abuts against the abutting portion. The latch includes a hinged portion hinged to the housing, a limiting portion for limiting the second end of the energy storage spring, and a tripping portion that cooperates with the tripping component, and an elastic member is disposed between the latch and the housing, so that the tripping portion has a trend of moving toward the tripping component.

Provided is a spring drive cam for a spring drive of a circuit breaker including a disc-like shape configured for rotating around a rotation axis in the spring drive, whereby the disc-like shape comprises a radius (R) that changes depending on an angle (α) of the radius (R) relative to a base angle (α0), and whereby a rate (dR/dα) defined by a change of the radius (R) per change of the angle (α) is ≤0.3 mm/°.

A push-button starter for use with an outdoor power equipment unit. In one embodiment, the starter includes a housing defining an opening to receive a removable button, and a peripheral edge surrounding the opening. The peripheral edge may define two scalloped areas such that two opposite sides of a head portion of the button are exposed and accessible when the button is in a neutral position within the housing while remaining sides of the head portion are enclosed within the housing. Moreover, the opening and the head portion may be configured to control an orientation of the button relative to the housing, and further prevent rotation of the button relative to the housing.