Search

CN-224204073-U - Switching device

CN224204073UCN 224204073 UCN224204073 UCN 224204073UCN-224204073-U

Abstract

The present disclosure provides a switching device including a housing, a shaft rotatably mounted to the housing about a rotational axis and configured to be switched between a closed position and an open position by rotation, a shaft detachably connected to the shaft and configured to rotate with the shaft about the rotational axis, a padlock member translatably mounted to the housing and configured to lock the shaft in the closed position or the open position by translating from an unlocked position to a padlock position, a locking member pivotally connected to the padlock member and configured to move translationally with the padlock member, a biasing member applying a pivoting biasing force to the locking member to cause the locking member to abut against a limit of the padlock member, wherein the locking member is configured to prevent the shaft from separating from the shaft when the shaft is locked and to selectively allow the shaft to separate from the shaft when the shaft is unlocked.

Inventors

  • LI DAIBO
  • ZHANG SIWEI

Assignees

  • 施耐德电气工业公司

Dates

Publication Date
20260505
Application Date
20250523

Claims (11)

  1. 1. A switching device, comprising: A housing; A rotation shaft rotatably mounted to the housing about a rotation axis and switched between a closed position and an off position by rotation; A shaft detachably connected to the shaft and configured to rotate with the shaft about the rotation axis; A padlock element translatably mounted to the housing and configured to lock the spindle in the closed position or the off position by translating from an unlocked position to a padlock position; A locking member pivotally connected to the padlock member and configured for translational movement therewith; A biasing element applying a pivotal biasing force to the locking element to urge the locking element against a stop of the padlock element, wherein The locking element is configured to prevent the shaft from being separated from the spindle when the spindle is locked and to selectively allow the shaft to be separated from the spindle when the spindle is unlocked.
  2. 2. The switching device according to claim 1, wherein the shaft comprises a shaft body extending in a first direction parallel to the rotation axis and a cam having a varying outer contour in a plane perpendicular to the first direction, When the spindle is locked, at least a portion of the locking element is blocked by the cam in a first direction to prevent the spindle from being separated from the spindle, and pivoting of the locking element is restricted by the lever body, When the spindle is unlocked in the off position, the locking element is not blocked by the cam in a first direction allowing the spindle to be separated from the spindle, When the shaft is unlocked in the closed position, at least a portion of the locking element is blocked by the cam in a first direction to prevent separation of the shaft from the shaft, and the locking element is configured to pivot against the pivot biasing force in response to an external force to be unblocked by the cam in the first direction to allow separation of the shaft from the shaft.
  3. 3. The switching device according to claim 2, wherein the locking element is formed in a sheet shape and includes a first edge and a second edge partially surrounding the lever body and intersecting each other, When the shaft is locked in the off position, the first edge is blocked by the cam in a first direction to prevent the shaft from being separated from the shaft, When the shaft is locked in the closed position, the second edge is blocked by the cam in a first direction to prevent the shaft from being separated from the shaft, and the pivoting of the locking element is restricted by the lever body, When the shaft is unlocked in the closed position, the second edge is blocked by the cam in a first direction to prevent the shaft from separating from the shaft, and the first edge is spaced from the lever body a distance sufficient for the locking element to pivot out of the block in the first direction in response to the external force to allow the shaft to separate from the shaft.
  4. 4. The switchgear according to claim 1, wherein the padlock element comprises a protrusion, the spindle comprising on its outer periphery a first groove and a second groove circumferentially spaced apart from each other, When the rotating shaft is in the closing position, the first groove faces the protruding part, and the padlock element enables the protruding part to be inserted into the first groove by translating to the padlock position, so that the rotating shaft is locked in the closing position, When the spindle is in the closed position, the second recess faces the projection, and the padlock element causes the projection to be inserted into the second recess by translating to the padlock position, thereby locking the spindle in the closed position.
  5. 5. The switching device according to claim 1, wherein the rotating shaft includes a groove at a bottom thereof, and the shaft includes a polygonal end portion insertable into and mated with the groove.
  6. 6. The switching device according to claim 1, wherein the padlock element comprises a boss into which the locking element is inserted, the locking element being pivotable about the boss.
  7. 7. The switching device of claim 6, wherein the biasing element is a torsion spring and surrounds the post, one end of the torsion spring being inserted into the padlock element and the other end being inserted into the locking element.
  8. 8. The switching device of claim 1, further comprising an operating handle detachably connected to the shaft.
  9. 9. The switching device according to claim 8, wherein the operating handle includes a groove at a bottom thereof, and the rotating shaft includes a polygonal end portion insertable into and mated with the groove.
  10. 10. The switching device according to claim 1, wherein an end portion of the rotation shaft protrudes outside the housing through the through hole of the housing.
  11. 11. The switching device according to claim 1, wherein a lock hole for a padlock is provided in the padlock element, which lock hole is exposed to the outside of the housing when the padlock element is in the padlock position, and is hidden by the housing when the padlock element is in the unlocking position.

Description

Switching device Technical Field The present disclosure relates to switching devices, and more particularly, to switching devices for electrical equipment. Background A switching device for operating an electrical apparatus, such as a circuit breaker, is generally mounted to a cabinet accommodating the electrical apparatus to operate the electrical apparatus. Some form of locking is required to prevent accidental or unauthorized operation of the switch device and/or accidental or unauthorized opening of the door of the enclosure. The conventional switchgear has a large number of parts for realizing a locking function and a complex linkage relationship between the parts. Furthermore, the handle of the conventional switchgear cannot be detached to hinder dense installation of electrical equipment. Disclosure of utility model In response to the foregoing, the present disclosure provides a switching device including a housing, a shaft rotatably mounted to the housing about a rotational axis and switching between a closed position and an open position by rotation, a shaft detachably connected to the shaft and configured to rotate with the shaft about the rotational axis, a padlock member translatably mounted to the housing and configured to lock the shaft in the closed position or the open position by translating from an unlocked position to a padlock position, a locking member pivotally connected to the padlock member and configured to translate with the padlock member, and a biasing member applying a pivoting biasing force to the locking member to cause the locking member to abut against a limit of the padlock member, wherein the locking member is configured to prevent the shaft from separating from the shaft when the shaft is locked and to selectively allow the shaft to separate from the shaft when the shaft is unlocked. In an embodiment, the shaft comprises a shaft body extending in a first direction parallel to the rotation axis and a cam having a varying outer contour in a plane perpendicular to the first direction. When the spindle is locked, at least a portion of the locking element is blocked by the cam in a first direction to prevent the shaft from separating from the spindle, and pivoting of the locking element is limited by the lever body. When the spindle is unlocked in the off position, the locking element is unobstructed by the cam in a first direction to allow the shaft to be separated from the spindle. When the shaft is unlocked in the closed position, at least a portion of the locking element is blocked by the cam in a first direction to prevent the shaft from separating from the shaft, and the locking element is configured to pivot against the pivot biasing force in response to an external force to be unblocked by the cam in the first direction to allow the shaft to separate from the shaft. In an embodiment, the locking element is formed in a sheet shape and comprises a first edge and a second edge partly surrounding the lever body and intersecting each other. When the shaft is locked in the off position, the first edge is blocked by the cam in a first direction to prevent the shaft from separating from the shaft. When the shaft is locked in the closed position, the second edge is blocked by the cam in the first direction to prevent the shaft from separating from the shaft, and the pivoting of the locking element is limited by the lever body. When the shaft is unlocked in the closed position, the second edge is blocked by the cam in a first direction to prevent the shaft from separating from the shaft, and the first edge is spaced from the lever body a distance sufficient for the locking element to pivot out of the cam in the first direction in response to an external force to allow the shaft to separate from the shaft. In an embodiment, the padlock element comprises a protrusion, the spindle comprising on its outer circumference a first groove and a second groove circumferentially spaced apart from each other. When the spindle is in the off position, the first recess faces the projection, and the padlock element causes the projection to be inserted into the first recess by translating to the padlock position, thereby locking the spindle in the off position. When the spindle is in the closed position, the second recess faces the projection, and the padlock element causes the projection to be inserted into the second recess by translating to the padlock position, thereby locking the spindle in the closed position. In one embodiment, the shaft includes a recess in its bottom and the shaft includes a polygonal end insertable into and matable with the recess. In an embodiment, the padlock element comprises a boss into which the locking element is inserted, the locking element being pivotable about the boss. In an embodiment, the biasing element is a torsion spring and surrounds the boss, one end of the torsion spring being inserted into the padlock element and the other end being inserted into the