Please select the most similar patent number from A, B, C and D. Which number is?
A floor installation tool and installation device. The floor installation tool comprises: a telescopic member; a hook, the hook being pivotally provided on the telescopic member, the hook having an initial position on the telescopic member, the side of the hook close to the telescopic member being provided with a hook part, the hook part being used for fitting in a slot to hook floor, and the hook part being configured to be rotatable within a limited angle range relative to the slot; and an elastic member, the elastic member being arranged between the hook and the telescopic member, and the elastic member being configured to drive the hook to rotate toward the initial position.
A: A refrigerator, which comprises: a box body, which has an inner cavity, the inner cavity having a defined storage compartment having a front opening; a side-by-side door assembly, which comprises a first door body and a second door body respectively arranged in a pivoting manner at two sides of the front opening of the storage compartment, so as to open or close the storage compartment; a vertical beam assembly, which is in whole rotatably mounted at a side of the first door body away from a center of pivot of the first door body, and which abuts against the second door body when the first door body and the second door body are closed, so as to seal a crack between the first door body, the second door body, and the box body; and the vertical beam assembly comprises: a vertical beam main body; and an extending and retracting member, which is extendably arranged at a bottom end of the vertical beam main body, and which abuts against a bottom wall of an inner cavity of the storage compartment. By means of arranging the extending and retracting member which abuts against the bottom wall of the inner cavity of the storage compartment at the bottom end of the vertical beam assembly, a crack between the vertical beam assembly and the bottom wall of the inner cavity is thereby eliminated, and sealing between the vertical beam assembly and the box body is improved.
B: The present application provides a floor installation mechanism, a floor installation device and a floor installation method. Said mechanism comprises a connecting seat, a base, a hook plate, a knocking assembly and an elastic element. The base is slidably connected to the connecting seat. The hook plate comprises a hook portion for hooking a side edge of a floor to be installed. The knocking assembly can apply a knocking force to the hook plate. A first end of the elastic element acts on the base, a second end of the elastic element acts on the connecting seat, and the elastic element can transmit, by means of the base, a tensioning force in a knocking direction to the hook plate. Said device comprises a driving mechanism and the described floor installation mechanism, the driving mechanism being connected to a connecting seat. Said method comprises: hooking a hook portion of a hook plate to a side edge of a floor to be installed; driving a connecting seat to accumulate elastic potential energy for an elastic element; and applying a knocking force to the hook plate by means of a knocking assembly.
C: The present application provides a pressure conduction mechanism and a charging bow used thereby, which relate to the technical field of charging devices. The pressure conduction mechanism comprises a bracket, a rocker assembly, an elastic assembly, a telescopic member and a force-applying member, wherein the rocker assembly comprises a first rocker and a second rocker; the force-applying member is used for applying a force to the second rocker; the elastic assembly comprises a first elastic member and a second elastic member; and two ends of the telescopic member are respectively hinged to the first rocker and the second rocker, the telescopic member can drive the movement of the second rocker, and when the telescopic member drives the second rocker to fall to a fifth pre-set position, the force applied to the second rocker is downward and constant.
D: A refrigerator, comprising a refrigerator body (30), a first door body (10), a second door body (20), a vertical beam (50), and a driving mechanism (60). The driving mechanism (60) comprises a telescopic member (61) that may be at an extension position where the rear end of the telescopic member projects and extends out of the surface of the inner side of the first door body (10) or at a retraction position of retracting from the extension position to the interior of the first door body (10) by a preset distance; an elastic member (62) applies an elastic force to the telescopic member (61) to prompt same to move towards the extension position; a rotating member (63) is mounted on the first door body (10) to be rotatable around a second vertical axis and is mounted on the telescopic member (61) to be rotatable around a third vertical axis (X3); a sliding channel (631) is formed in the rotating member (63); a sliding column (64) is fixed to the vertical beam (50) and is slidable along the sliding channel (631). When the first door body (10) is in an open state, the telescopic member (61) is at the extension position, and the vertical beam (50) is in a folded state; and during the closing of the first door body (10), the telescopic member (61) is blocked by the refrigerator body (30) and moves towards the retraction position to drive the rotating member (63) to rotate around the second vertical axis (X2), so that the sliding channel (631) pushes the sliding column (64) to drive the vertical beam (50) to rotate to an unfolded state.
Answer: B