Please select the most similar patent number from A, B, C and D. Which number is?
A mechanical device for obtaining a sheet-plate-shaped article, comprising a base (600) on which a suction cup (640), a driver (610), a first clamping jaw (620-1) and a second clamping jaw (620-2) are mounted. The first clamping jaw (620-1) comprises a first pivoting end (631-1) capable of pivoting along a first pivoting shaft (661-1) and a first clamping piece serving as a first free end (630-1), the second clamping jaw (620-2) comprises a second pivoting end (631-2) capable of pivoting along a second pivoting shaft (661-2) and a second clamping piece serving as a second free end (630-2), and the first clamping piece and the second clamping piece are of a long-strip-shaped flat plate structure and extend in the directions parallel to the pivoting shafts. The mechanical device for obtaining a sheet-plate-shaped article can lift sheet-plate-shaped articles by means of the clamping jaws, reduces damage to the articles resulted from sorting and the risk of falling off of the articles, and guarantees smooth running of sorting.
A: Disclosed are a hemostatic clip and an auxiliary system. The hemostatic clip comprises a first clip piece (110), a second clip piece (120), a tightening tube (140), a middle clip piece (150), a middle shaft assembly (160), a traction assembly (170), a control handle (180) and at least two separation members (190), wherein the traction assembly (170) is respectively connected to the control handle (180) and the middle shaft assembly (160); the middle shaft assembly (160) is connected to the tightening tube (140); the proximal end of the first clip piece (110) and the proximal end of the second clip piece (120) are connected to the traction assembly (170); the proximal end of the middle clip piece (150) penetrates the tightening tube (140) to be fixedly connected to the middle shaft assembly (160); the first clip piece (110) and the second clip piece (120) are arranged on two sides of the middle clip piece (150); the first clip piece (110) and the middle clip piece (150) form a first clip body; the second clip piece (120) and the middle clip piece (150) form a second clip body; the control handle (180) is used for opening or closing the first clip body and the second clip body corresponding to the first clip piece (110) and/or the second clip piece (120); and the separation members (190) are arranged in a tube cavity of the tightening tube (140), and are located between the first clip piece (110) and the middle clip piece (150) and between the second clip piece (120) and the middle clip piece (150), such that the instrument fault risk caused by the interference of the first clip piece (110), the second clip piece (120) and the middle clip piece (150) is reduced.
B: A powerful plier comprising a first jaw (1), a second jaw (2), a first handle (3), and a second handle (4). The first jaw (1) is mounted onto the first handle (3). The second jaw (2) is pivotally mounted onto the first handle (3) and is pivotally mounted onto the second handle (4) via a first connecting point (21). The powerful plier also comprises a single connecting rod (11), a sliding mechanism (10), and a lock mechanism (8). One extremity of the connecting rod (11) is pivotally mounted onto the second handle (4) via a second connecting point (16), while the other extremity is pivotally mounted onto the sliding mechanism (10) via a third connecting point (17). The sliding mechanism (10) and the lock mechanism (8) are slidably mounted onto the first handle (3). The single connecting rod (11) increases the supporting strength of the connecting rod. Arrangement of multiple lock pieces (81) increases the efficiency of locking. Also, processing costs for the lock pieces are reduced. The lock mechanism (8) and the sliding mechanism (10) run through a guide rod (6), thus simplifying an assembly process.
C: A sorting system for sheet or plate-like articles, comprising: a supply device (110) capable of receiving and transmitting a plurality of sheet or plate-like articles overlapped together and having different orientations; an image processing device (120) capable of receiving a plurality of sheet or plate-like articles and obtaining grade information of a sheet or target plate-like article according to image information of the target sheet or plate-like article among the plurality of sheet or plate-like articles; an encoder capable of calculating motion information of the target sheet or plate-like article; and a sorting device (130) capable of sorting the target sheet or plate-like article according to the grade information and the motion information of the target sheet or plate-like article. The system for sorting sheet or plate-like articles achieves automation of sheet or plate-like article sorting, and increases the sorting efficiency.
D: A mechanical gripping jaw and a gripping bar mechanism, comprising a mounting seat (100); a drive assembly (200), which is provided on the mounting seat, and is provided with a transmission member (210); a first gripping assembly (300), which is rotatably provided on the mounting seat, is in drive connection with the transmission member, and is provided with a first gripping head (310); and a second gripping assembly (400), which is rotatably provided on the mounting seat, is in drive connection with the transmission member, and is provided with a second gripping head (410); when the first gripping head and the second gripping head are able to rotate relative to and approach each other, the first gripping head cooperating with the second gripping head to form a gripping station. As the forces applied to the product are not opposite radial gripping forces applied by a traditional mechanical gripping arm, the gripping forces applied to the product are relatively small and also smoother, so that the invention can realize secure gripping of fragile products, and eliminate potential risk of said fragile products being broken, and the connection structure above is simple and is secure for operation, and the costs for manufacture, usage and maintenance are low.
Answer: D