Abstract: Temporary access to a digital whiteboard is enabled for conference participants during a conference (e.g., a video conference). Based on a request to share a digital whiteboard with conference participants during a conference, ones of the conference participants to which to grant temporary access permissions for the digital whiteboard are determined. The temporary access permissions are granted to enable the ones of the conference participants to access the digital whiteboard during the conference. Based on an event occurrence, which may, for example, correspond to a termination of the conference or a disconnection of an owner of the digital whiteboard from the conference, the temporary access permissions are revoked to restrict further access to the digital whiteboard by the ones of the conference participants.

Abstract: Disclosed in the utility model is a vertical latch locking mechanism for a rotating seat, including a vertical latch locking mechanism mounted on a rotating disc in a seat rotation mechanism, at least one lockhole provided on a disc surface of a fixed disc in the seat rotation mechanism, and at least one first lock pin hole provided on the rotating disc. The lockhole is aligned with the first lock pin hole, and the vertical latch locking mechanism includes: a locking pin bracket fixed on the rotating disc; and at least two lock pins vertically and moveably configured on the locking pin bracket. A first end of the lock pin passes through the first lock pin hole and is inserted into the lockhole, to implement locking. In the utility model, a horizontal locking mechanism is changed to a vertical latch mechanism, radial sizes of the rotating disc and the fixed disc are greatly reduced, and a diameter can be reduced to less than 200 mm.

Abstract: The present invention discloses a seat rotation locking mechanism, including a locking mechanism mounted on a rotating disc in a seat rotation mechanism and at least one lockhole disposed on an outer circumference of a fixed disc in the seat rotation mechanism, where the locking mechanism includes: a lock support fixed on the rotating disc; and at least two lock pins horizontally and moveably configured in the lock support, where a first end of the lock pin is of a truncated-cone-shaped structure; and the first end of the lock pin is inserted into the lockhole, to implement zero-clearance locking by using wedging between the truncated-cone-shaped structure of the first end of the lock pin and the lockhole. The present invention eliminates a fit clearance existing after a rotation mechanism is locked, improves a grade of a product, and improves user experience.

Abstract: The present invention discloses a seat rotation locking mechanism, including a locking mechanism mounted on a rotating disc in a seat rotation mechanism and at least one lockhole disposed on an outer circumference of a fixed disc in the seat rotation mechanism, where the locking mechanism includes: a lock support fixed on the rotating disc; and at least two lock pins horizontally and moveably configured in the lock support, where a first end of the lock pin is of a truncated-cone-shaped structure; and the first end of the lock pin is inserted into the lockhole, to implement zero-clearance locking by using wedging between the truncated-cone-shaped structure of the first end of the lock pin and the lockhole. The present invention eliminates a fit clearance existing after a rotation mechanism is locked, improves a grade of a product, and improves user experience.

Abstract: The present invention discloses a seat rotation locking mechanism, including a locking mechanism mounted on a rotating disc in a seat rotation mechanism and at least one lockhole disposed on an outer circumference of a fixed disc in the seat rotation mechanism, where the locking mechanism includes: a lock support fixed on the rotating disc; and at least two lock pins horizontally and moveably configured in the lock support, where a first end of the lock pin is of a truncated-cone-shaped structure; and the first end of the lock pin is inserted into the lockhole, to implement zero-clearance locking by using wedging between the truncated-cone-shaped structure of the first end of the lock pin and the lockhole. The present invention eliminates a fit clearance existing after a rotation mechanism is locked, improves a grade of a product, and improves user experience.