The present disclosure provides a refrigerator with a lifting shelf, including a lifting shelf, a shelf driving mechanism, and a shelf stroke detection device. The shelf driving mechanism includes: a driving motor and a gear transmission mechanism, where the gear transmission mechanism includes at least one group of transmission gears, the driving motor outputs a torque through a driving output shaft, and a first pulley is disposed on the driving output shaft; a guide rail slidably connected to a support piece on the guide rail, wherein the lifting shelf is fixedly connected with the support piece; and a traction cable, where the traction cable is wound around the first pulley, and the other end of the traction cable is fixedly connected with the support piece.

A lifting cabinet includes a transmission assembly and a power unit for raising and lowering a shelf. The transmission assembly comprises a first transmission unit, comprising a screw rod which is connected with a driving device and a sliding piece which is connected with the lifting shelf, and the sliding piece is coupled to the screw rod. The screw rod rotates under the action of the driving device and drives the sliding piece to move back and forth along the axis of the screw rod; and then the sliding piece drives the lifting shelf to move up and down. For the lifting cabinet and the power unit thereof, the transmission assembly converts a rotary motion outputted from the driving device into a linear motion through the cooperation between the screw rod and the sliding piece, and a greater axial force is thereby outputted. Thus, a relatively small motor with a lower output torque can be used in the lifting cabinet to drive a lifting shelf of the same weight when compared to the conventional lifting cabinet, and the problem of large motor in conventional lifting cabinet taking up too much space is thereby solved.

A lifting cabinet includes a transmission assembly and a power unit for raising and lowering a shelf. The transmission assembly comprises a first transmission unit, comprising a screw rod which is connected with a driving device and a sliding piece which is connected with the lifting shelf, and the sliding piece is coupled to the screw rod. The screw rod rotates under the action of the driving device and drives the sliding piece to move back and forth along the axis of the screw rod; and then the sliding piece drives the lifting shelf to move up and down. For the lifting cabinet and the power unit thereof, the transmission assembly converts a rotary motion outputted from the driving device into a linear motion through the cooperation between the screw rod and the sliding piece, and a greater axial force is thereby outputted. Thus, a relatively small motor with a lower output torque can be used in the lifting cabinet to drive a lifting shelf of the same weight when compared to the conventional lifting cabinet, and the problem of large motor in conventional lifting cabinet taking up too much space is thereby solved.

An appliance includes a cabinet and a shelf assembly. The shelf assembly includes a lead screw mounted to the cabinet such that the lead screw is rotatable. A shelf support is mounted to the cabinet such the shelf support is translatable relative to the lead screw. The shelf support has a housing. A nut is disposed within the housing of the shelf support and is threaded on the lead screw. The nut has a plurality of teeth at an outer surface of the nut. A locking plunger has at least one tooth. An actuator is coupled to the locking plunger. The actuator is operable to selectively mesh the at least one tooth of the locking plunger with the plurality of teeth of the nut.

An appliance includes a cabinet and a shelf assembly. The shelf assembly includes a lead screw mounted to the cabinet such that the lead screw is rotatable. A shelf support is mounted to the cabinet such the shelf support is translatable relative to the lead screw. The shelf support has a housing. A nut is disposed within the housing of the shelf support and is threaded on the lead screw. The nut has a plurality of teeth at an outer surface of the nut. A locking plunger has at least one tooth. An actuator is coupled to the locking plunger. The actuator is operable to selectively mesh the at least one tooth of the locking plunger with the plurality of teeth of the nut.

The present disclosure relates to an automatically adjustable smart shelf, a cargo storing method, and an unmanned logistics system. The automatically adjustable smart shelf includes a shelf outer frame and a control unit. A first movable shelf layer and a second movable shelf layer provided on the shelf outer frame and respectively movable along a first direction and a second direction intersecting with each other. A control unit can control the first movable shelf layer and the second movable shelf layer to move along the first direction and the second direction respectively, so as to form various sizes of storage space for storing various cargos accordingly.

The present disclosure relates to an automatically adjustable smart shelf, a cargo storing method, and an unmanned logistics system. The automatically adjustable smart shelf includes a shelf outer frame and a control unit. A first movable shelf layer and a second movable shelf layer provided on the shelf outer frame and respectively movable along a first direction and a second direction intersecting with each other. A control unit can control the first movable shelf layer and the second movable shelf layer to move along the first direction and the second direction respectively, so as to form various sizes of storage space for storing various cargos accordingly.

The application includes a cabinet, having a cabinet body that has a back wall, a top wall and at least one shelf, the open side of which cabinet is closable by at least one covering swivelably connected to the cabinet body; having tilt fittings for the covering that are attached in the upper vicinity of the cabinet body and are covered by inner walls; and having front facings, located between the side walls and the inner walls of the cabinet body and lowerable in the closing position of the covering toward the back side of the cabinet body. In the open position of the covering, the front facings entirely cover the space between the side walls, the inner walls, the tilt fittings, and the shelf, and are flush with the face end of the cabinet body, and the inner walls entirely cover the tilt fittings and front facings. The front facings are each connected to a travel-limiting, adjustable guide device.

The application includes a cabinet, having a cabinet body that has a back wall, a top wall and at least one shelf, the open side of which cabinet is closable by at least one covering swivelably connected to the cabinet body; having tilt fittings for the covering that are attached in the upper vicinity of the cabinet body and are covered by inner walls; and having front facings, located between the side walls and the inner walls of the cabinet body and lowerable in the closing position of the covering toward the back side of the cabinet body. In the open position of the covering, the front facings entirely cover the space between the side walls, the inner walls, the tilt fittings, and the shelf, and are flush with the face end of the cabinet body, and the inner walls entirely cover the tilt fittings and front facings. The front facings are each connected to a travel-limiting, adjustable guide device.

The disclosure herein includes an expandable luggage assembly, which expandable luggage assembly may include: an upper shell having a plurality of sidewalls; a lower shell having a plurality of sidewalls removably coupled to one more of the plurality of sidewalls of the upper shell; a shelf coupled to the upper shell; a plurality of wheels coupled to the lower shell; and two handles, each handle of the two handles comprising: a crossbar disposed above the upper shell; a first tube coupled to the crossbar and slidably coupled to the upper shell; a second tube slidably coupled to the first tube and capable of being abutted against the upper shell; a third tube slidably coupled to the second tube and coupled to the lower shell.