Please select the most similar patent number from A, B, C and D. Which number is?
A slide rail preassembling assembly and a shower room. The slide rail preassembling assembly comprises a positioning member, a first corner member and a second corner member; the ends of the first corner member and the second corner member that are close to each other, are hinged to each other, so that the first corner member and the second corner member swing relative to each other to a factory state or a positioning state, and one end of the ends of the first corner member and the second corner member that are close to each other, is provided with a first pressing portion, and the other end thereof is provided with a second pressing portion; in the factory state, the positioning member and the first corner member, and the positioning member and the second corner member are configured to be separated; and in the positioning state, the first corner member and the second corner member form a folded structure, the first pressing portion and the second pressing portion abut against each other at an inner side of the folded structure, and the positioning member is mounted at an outer side of the folded structure, so as to restrict the first corner member and the second corner member from swinging relative to each other.
A: The present invention relates to an interactive smart tablet and an outer corner piece thereof. The interactive smart tablet comprises a display screen assembly, a touch circuit board and a frame structure, wherein the frame structure comprises frame strips, an inner corner piece and the outer corner piece, one end of the inner corner piece is fixed to the frame strip on one side, and the other end is fixed to the frame strip on another side. The outer corner piece comprises a corner body, a first support plate and a second support plate, wherein the corner body comprises a first corner plate and a second corner plate, the first support plate is arranged on the inner surface of the first corner plate, and abuts against the inner corner piece or the frame strip. The second support plate is arranged on the inner surface of the second corner plate, and abuts against the inner corner piece or the frame strip. Therefore, the first support plate and the second support plate can effectively prevent the outer surfaces of the first corner plate and the second corner from being recessed or collapsed under the action of an external force, thereby effectively ensuring the stability of the interactive smart tablet.
B: The present application provides a food processing device, comprising: a base, a stator assembly being provided on the base; a cup assembly, the cup assembly being disposed on the base; a first rotor assembly, provided with a first rotating shaft, the first rotor assembly being disposed on the cup assembly, and the first rotor assembly being adapted to be driven by the stator assembly; and a second rotor assembly, provided with a second rotating shaft, the second rotor assembly being disposed on the cup assembly, the second rotor assembly being adapted to be driven by the stator assembly, the first rotating shaft and the second rotating shaft being coaxially arranged, the first rotating shaft being sleeved on the second rotating shaft, and the first rotating shaft and the second rotating shaft being separately provided with a cutter assembly. According to the food processing device provided by the present application, the cutter assemblies on the first rotor assembly and the second rotor assembly are independent of each other, so that rotation in the same direction and rotation in opposite directions of the first rotating shaft and the second rotating shaft and control of the rotational speed difference therebetween can be implemented, thereby improving the crushing effect and crushing efficiency.
C: Provided are a roller device and a shower room door. The roller device comprises: a first pre-assembly component (200) to be pre-assembled to a shower room door (100); and a second pre-assembly component (300), wherein a roller mechanism (400) is provided at a side of the second pre-assembly component facing away from the first pre-assembly component (200). A first slot is provided at one end of one of the first pre-assembly component (200) and the second pre-assembly component (300), and an insertion portion is provided at a corresponding end of the other of the two opposing components. An insertion tongue (205) is provided at one end of one of the first pre-assembly component (200) and the second pre-assembly component (300), and a second slot (303) is provided at a corresponding end of the other of the two opposing components. The maximum depth at which the insertion portion is inserted into the first slot is greater than the maximum depth at which the insertion tongue (205) is inserted into the second slot (303). The insertion portion is further inserted into the first slot, such that the insertion tongue (205) is aligned with the second slot (303) and the insertion tongue (205) is then inserted into the second slot (303), thereby assembling the second pre-assembly component (300) and the first pre-assembly component (200).
D: A fabric-embedded pop-up display frame. Upright posts (A) and cross beams (B) are all profiles (1); a corner member (3) is provided between adjacent ends of each upright post (A) and each cross beam (B); two connecting members (2) of which mirror images are symmetrical are provided corresponding to each corner member (3); basal bodies (2-1) of the two connecting members (2) of which mirror images are symmetrical are respectively inserted into main cavities (1-c) of the two profiles (1); insertion bodies (2-3) of the two connecting members (2) are respectively inserted into two insertion portions (3-c) of the basal bodies (3-1) of the corresponding corner member (3), so to implement the connection between the upright post (A) and the cross beam (B); front fabric embedding slots (1-a) of the profile (1) are respectively connected to corresponding front fabric embedding channels (3-a) in the corner member (3) by front abutment channels (2-a) of the connecting member (2); a side fabric embedding slot (1-b) of the profile (1) is connected to a side fabric embedding slot (1) of the corner member (3) by a side abutment channel (2-b) of the connecting member (2), so as to form one or two annular front fabric embedding slots and two or one annular side fabric embedding slot on a frame. According to the present frame, different fabric embedding slots are selected for mounting a fabric, there are multiple mounting forms of the fabric, and the profiles (1) can be wrapped when the fabric is embedded in appropriate fabric embedding slots, so that the profiles (1) of the display will not be exposed, and a good visual effect of the fabric is achieved.
Answer: C