Abstract:
The present invention discloses a screw-driven control system, which comprises a driving mechanism fixed in a cross beam, a guide locking piece and a limiting mechanism. The driving mechanism comprises a screw rod and a nut assembly driven by a motor; the nut assembly comprises a transmission frame, a nut sleeved in the screw rod, and a follow-up member fixed in the nut; the nut is mounted in the transmission frame, and the transmission frame is connected with a controlled object; the screw rod drives the nut assembly to reciprocate axially along the screw rod; during the forward rotation of the screw rod, when the follow-up member is contacted with the guide locking piece, the follow-up member moves to the limiting mechanism under the guiding of an upper surface of the guide locking piece and is blocked by the limiting mechanism, then the follow-up member rotates with the screw rod to enter a space between a side plane of the guide locking piece and the limiting mechanism and is locked; and when the screw rod rotates reversely, the follow-up member reversely rotates with the screw rod to disengage from the limitation of the guide locking piece and is unlocked, and then moves axially along the screw rod. The invention solves the safety problem caused by an electromagnetic lock when the electromagnetic lock fails, and is also simpler and more reliable than a mechanical lock structure.
Abstract:
The invention relates to a support and adjustment device of a trolley for sliding doors, which comprises a trolley (C) pre-assembled to the support plate (1), which incorporating, in one piece, a box body (2) crossed by a window (4) and a through hole (3) with vertical axis, wherein a stem (5) is inserted to provide connection between the trolley (C) and the plate (1), which incorporates screw anchors (6) for fast-fixing on the internal wall of the sliding door (P).
Abstract:
The invention relates to a fitting (2) for a sliding door (1) comprising a roller carrier (3), on which one or more rollers (5) are rotatably mounted, wherein said rollers roll on a rail (6), wherein a lift-out protection mechanism (11) is guided on the roller carrier (3), said lift-out protection mechanism allowing the roller carrier (3) to be lifted in a first position and preventing the roller carrier (3) from being lifted from the rail (6) in a locked second position, wherein the lift-out protection mechanism (11) comprises a tab (10), which reaches under the rail (6) in the locked position and can be lowered in order to release the tab from the rail (6).
Abstract:
Disclosed is a vehicle door driving apparatus provided with a driving mechanism and a rope member. The driving mechanism is fixed to an inner section of a vehicle door which opens and closes a door opening formed in a vehicle body, the driving mechanism including a motor and a drum which is rotationally driven by the motor. The rope member is wound around the drum and linked to the vehicle body, and rotation of the drum is transmitted to the vehicle body by way of the rope member which causes the vehicle door to open and close. The drum is disposed in the inner section of the vehicle door in such a way as to at least partially overlap in a dimensional space in the vehicle width direction defined by the external shape of the motor. The driving mechanism is provided with: a first small-diameter gear linked to the rotary axis of the motor in such a way that the first small-diameter gear rotates together with the rotary shaft of the motor; a transmission gear rotatable around the axis extending in the vehicle width direction; a sun gear rotatable around the axis extending in the vehicle width direction; a ring gear disposed on the same axis as the sun gear; and a carrier which has a planet gear that engages with the sun gear and the ring gear, and which is linked to the drum in such a way that the carrier rotates together with the drum.
Abstract:
A height adjusting mechanism and a refrigerator comprising the same may be provided. The height adjusting mechanism may comprise: a hinge shaft (1); an adjusting member (2) for driving the hinge shaft (1) to rotate around an axis of the hinge shaft (1); a constraining member (3) for constraining a movement of the adjusting member (2) in an axial direction of the hinge shaft (1); and a base (4) with the constraining member (3) fixedly connected thereto, in which the hinge shaft (1) connected with the base (4) may be liftable in the axial direction of the hinge shaft (1) under the driving of the adjusting member (2).
Abstract:
The present invention is related to a movement device (1) of a mobile element (4) in relation to a fixed frame (2), which develops in a frame plane (Z) and which defines a frame opening (3) which can be engaged by the mobile element (4). The device comprises a longitudinal translation guide (5', 5' ') which can be joined to the fixed frame and suitable for allowing the translation of the mobile element (4) along a primary translation axis (X) between a configuration of at least partial superimposition of the mobile element with the frame opening, and at least one configuration of non- alignment with the opening. The device further comprises transversal moving means, operatively connected to the mobile element (4) so as to allow, when the latter is in the configuration of superimposition, its movement along a secondary movement axis (Y), incident to the primary translation axis (X), between the configuration of superimposition and a closing configuration, wherein the mobile element is engaged in the frame opening. Furthermore, the secondary trajectory (Y) is substantially linear or rectilinear at least in its terminal section towards the frame opening (3).