5results about How to "Realize automatic door closing" patented technology

This invention discloses a force-saving damping device and a sliding door. The force-saving damping device is disposed between a first object and a second object. The second object slides relative to the first object in a first direction to close or slides in a second direction opposite to the first direction to open. It includes a blocking member, a damping member, a swinging member, and a linkage mechanism. The blocking member is pushed by the second object to slide in the same direction during the partial closing phase. The damping member buffers the second object when the blocking member slides in the first direction. The swinging member has a blocking surface and swings between a first state and a second state. In the first state, the blocking surface is adapted to be pushed in the second direction, and in the second state, the blocking surface is no longer pushed by the second object. When the swinging member slides in the second direction, it enters the second state from the first state, and vice versa. The linkage mechanism is placed between the blocking member and the swinging member, so that the blocking member and the swinging member are linked in the same direction and the stroke of the swinging member is greater than the stroke of the blocking member. This force-saving damping device makes opening the door easier.

The utility model relates to an automatic door opening and closing mechanism and door box equipment, which can realize full-angle automatic door opening and closing, improve user experience and improve safety performance. The automatic door opening and closing mechanism comprises a hinge spring system, the hinge spring system comprises a hinge assembly used for rotatably installing the door body assembly on the box body frame, a first pull rope connected with the hinge assembly and a spring used for being connected with the box body frame, and the spring is connected to the first pull rope; the first pull rope is used for applying a first tension moment smaller than a gravity moment of the door body assembly to the hinge assembly through the first pull rope; and the pull rope driving system comprises a driving motor and a second pull rope, one end of the second pull rope is connected to the driving motor, the other end of the second pull rope is connected to the hinge assembly, and the pull rope driving system is used for applying second tension torque opposite to the gravity torque of the door body assembly to the hinge assembly through the second pull rope.

The utility model relates to the technical field of automatic door closing, in particular to an automatic door closing device for a multi-person dormitory. Comprising a driving part fixedly arranged on a wall body; the control module is electrically connected with the driving part; the device further comprises a winding shaft, a winding drum and a connecting rope. The winding shaft is fixedly connected with the driving part, and the driving part drives the winding shaft to rotate in the first direction unidirectionally; the first direction is a clockwise or anticlockwise direction around the axis of the winding shaft; one end of the connecting rope is connected with the door body to form a connecting point, and the other end is connected with the winding drum; the winding drum is rotationally connected to the outer side of the winding shaft, and a one-way locking mechanism is arranged between the winding drum and the winding shaft and enables the winding shaft to drive the winding drum to rotate in the first direction. By means of the automatic door closing device, an existing door body can be slightly transformed, and automatic door closing is achieved. And meanwhile, the one-way locking mechanism can also prevent the door opening resistance from being increased.

The application provides a cooking device provided with an automatic door closing device, aiming at solving the problem that the automatic door closing structure of the prior art cooking device is too complex, resulting in large occupied space and high cost. The cooking device provided with the automatic door closing device comprises a door body provided with a fixed door hook, a cooking device body provided with an outer sliding block guide rail, and a door closing assembly arranged on the cooking device body, wherein the door closing assembly comprises an outer sliding block slidingly arranged on the outer sliding block guide rail and a first elastic member arranged between the rear side of the outer sliding block and the cooking device body and in a stretched state; the outer sliding block comprises an opening door position and a closing door position, the front side of the outer sliding block is provided with a locking assembly for being locked with the fixed door hook when the closing door position is reached and an unlocking assembly for unlocking the locking of the fixed door hook by the locking assembly when the opening door position is reached. The automatic door closing device provided by the application has the advantages of simple structure, small occupied space, low cost and automatic door closing.

The utility model relates to an automatic door opening and closing mechanism and door box equipment. The automatic door opening and closing mechanism comprises a hinge spring system which comprises a hinge assembly, a linkage piece connected with the hinge assembly and a spring connected to the linkage piece; the tensioning driving system comprises a driving mechanism, a transmission arm and a tensioning wheel, the transmission arm is in driving connection with the driving mechanism, the tensioning wheel is arranged on the transmission arm and used for tensioning the linkage piece, and the transmission arm is driven by the driving mechanism to drive the tensioning wheel to move among a first position, a second position and a third position; when the tensioning wheel is located at the second position, the linkage piece applies a tension moment balanced with the gravity moment to the door body assembly under the action of the spring; when the tensioning wheel is located at the first position, the linkage piece applies tension moment smaller than gravity moment to the door body assembly so as to break moment balance. When the tensioning wheel is located at the third position, the linkage piece applies the tension moment larger than the gravity moment to the door body assembly so as to break moment balance.