Stop Mechanism of Switching Device and Its Switching Device
A technology of a switching device and a stopper mechanism is applied in the field of the switching device and the stopper mechanism of the switching device, and can solve the problems of potential safety hazards, contact and the like
Inactive Publication Date: 2017-01-04
SIEMENS AG
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Problems solved by technology
[0003] When the drive shaft of the switching device rotates from the open position to the closed position, and there is no transmission contact between the slider and the transmission shaft, the gravity torque of the movable contact and / or the vibration of the switching device may cause the movable contact to drive The rotation of the transmission shaft makes the movable contact contact with the fixed contact, which poses a safety hazard
Method used
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[0035] In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.
[0036] In this article, "schematic" means "serving as an example, example or illustration", and any illustration or implementation described as "schematic" should not be interpreted as a more preferred or more advantageous Technical solutions.
[0037] In order to make the drawing concise, the parts related to the present invention are only schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked.
[0038] Herein, "a" not only means ...
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In a stop motion mechanism of a switching device, a transmission shaft (20) is rotatably arranged on a housing (10), and a contact part (22) is arranged in a circumferential direction of a transmission shaft. A stop motion assembly (30) comprises a stop motion member (32) and an elastic member (34). The stop motion member is provided with a stop motion blocking end (322) propped against the contact part and a connecting end (324). The elastic member can push the stop motion member to move in a stop motion direction of along which the stop motion blocking end is propped against the contact part. According to the stop motion mechanism of the switching device, the stop motion assembly can limit the rotation of the transmission shaft, the transmission shaft can rotate only when an enough drive force is provided for the transmission shaft to overcome the limit of the stop motion assembly, so that a movable contact can be effectively prevented from being in contact with a fixed contact due to accidental rotation of the transmission shaft.
Description
technical field [0001] The invention relates to a stop mechanism, in particular to a stop mechanism for a switching device. The invention also relates to a switching device using the stop mechanism. Background technique [0002] The switching device is provided with a driving shaft, a transmission shaft, a sliding part and an elastic driving assembly. By manually rotating the drive shaft, the drive shaft can drive the slide to slide. The movement of the slider makes the elastic driving component store elastic energy. When the elastic driving component passes the dead point position with the largest elastic energy, the elastic driving component pushes the slider to slide, so that the slider drives the transmission shaft to rotate, so as to realize the movable contact and The fixed contacts contact and separate, so as to realize the on-off control of the power supply line. Typically, there is a closed position, an open position and a test position during the rotation of the...
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IPC IPC(8): H01H3/50
CPCH01H1/22H01H3/50H01H19/06
Inventor 刘明华
Owner SIEMENS AG