Please select the most similar patent number from A, B, C and D. Which number is?
Disclosed in the present application is an illumination device, comprising a storage shelf and an LED illuminator, the LED illuminator is provided at the lower end of the storage shelf, and male plugs electrically connected to the LED illuminator are movably provided at two ends of the storage shelf. The illumination device of the present application provides the LED illuminator on the storage shelf to solve the problem of insufficient illumination of articles under the storage shelf, and the illumination device can be used as an independent unit that is convenient to replace.
A: A rotary concealed storage rack, comprising a storage rack body (1) and two upper and lower fixing plates (2), wherein top and bottom surfaces of the storage rack body (1) are each pivotally connected to the end part of one rotating plate (3), the other ends of two rotating plates (3) are pivotally connected to the two upper and lower fixing plates (2) respectively, and the storage rack body (1) is located between the two upper and lower fixing plates (2) when the storage rack body (1) is closed. Only the rear side of the storage rack is open, and the front, left, and right sides are wrapped. The storage rack is fixed on a wall. In an initial state, the rear side is closely attached to the wall, the rear side is closed by using the wall, and the front, left and right sides are exposed. When in use, along with the rotation of the rotating plates (3) relative to the two upper and lower fixing plates (2), the storage rack body (1) is separated from the wall, while the storage rack body (1) rotates relative to the rotating plate (3), and the rear side of the storage rack body (1) faces forward. Then, the rotating plates (3) are reset to return the storage rack body (1) between the two upper and lower fixing plates (2) so that it is easy to take items displayed on the storage rack body (1). The storage rack is attached to the wall, which does not occupy space. When not in use, the storage rack is equivalent to a fully enclosed structure, which may ensure the cleanliness and hygiene of the interior. When in use, the open side faces forward, making it easy to take the items. The storage rack has the characteristics of a beautiful appearance, not occupying countertop space, and being convenient to use.
B: Disclosed are a storage shelf and a refrigerator provided with said storage shelf. The storage shelf has at least two mounting positions and comprises trays, a support rod, a support base and locking members; the locking members are provided on the support base and cooperate with the trays or with the support rod to form the mounting positions; the trays can be fixed at different mounting positions and can move along the axial direction or circumferential direction of the support rod by means of switching mounting positions.
C: An electric shelf, comprising: at least one upright post (1) which is installed on the wall; a slider arranged on the upright post (1) and capable of sliding up and down relative to the upright post (1); at least one layer of shelf assembly (2) connected to the slider and which moves synchronously with the slider; and a linear driving device (7) connecting the slider to the upright post (1) and used for driving the slider to move relative to the upright post (1). The overall structure of the shelf is simple. The electric shelf is mounted on the wall by by means of mounting plates (3) at both ends of the upright post (1). The shelf assembly (2) is driven by means of a motor (5) to move along the upright post (1) under the drive of the linear driving device (7). The shelf assembly (2) descends when a user needs to take and store articles, and the distance from the bottom of the shelf assembly (2) to the floor may allow people to pass through after the shelf assembly (2) is raised, which may thus prevent the shelf assembly from occupying the effective space of the user.
D: A photographing LED illuminating lamp capable of rotationally converting between a direct-lighting mode and a soft-lighting mode comprises a lamp holder (1), a light-emitting main body (2), and a support (3). The bottom of the light-emitting main body (2) is in rotational fit with the top of the lamp holder (1). The support (3) is disposed on the bottom of the lamp holder (1). The light-emitting main body (2) consists of a main body housing (4), a front LED light-source plate (5), a side LED light-source plate (6), and a light guide plate (7). A light-emitting window (10, 11) is disposed on each of a front side surface (8) and a rear side surface (9) of the main body housing (4). The front LED light-source plate (5) is mounted on one light-emitting window (10), and a plurality of LED light sources (12) whose irradiation directions are towards the front is disposed on the front LED light-source plate (5). The light guide plate (7) is mounted on the other light-emitting window (11). The side LED light-source plate (6) is mounted on the outer side of the light guide plate (7). A plurality of LED light sources (14) whose irradiation directions are towards the side surface (13) of the light guide plate is mounted on the side LED light-source plate (6). The problem of limitations of illuminating brightness due to certain loss of illuminating brightness in both direct-lighting illumination and soft-lighting illumination existing in the similar prior art is resolved.
Answer: D