Please select the most similar patent number from A, B, C and D. Which number is?
A riveter having an integrated rivet feeding and loading mechanism, consisting of a riveter body (1), a driving mechanism (2) and a rivet loading mechanism (3); a cylinder body (20) of the driving mechanism (2), a sliding groove (25), and an oil cylinder (10) of the riveter body (1) are processed to be integrated, being referred to as integrated cylinder A. The rivet loading mechanism (3) comprises a lower jaw piece (31), an upper jaw piece (32), a coupling block (35), a tension spring (36) and a support rod (24). A piston rod (22) of the driving mechanism and a sliding rod (26) within the sliding groove jointly drive the rivet loading mechanism to move back and forth; when the rivet loading mechanism moves forward, the same automatically closes and receives rivets; when the rivet loading mechanism moves backwards, the same automatically opens to load rivets into a gun head of the riveter body. The structure of the riveter reduces the number of parts of a device, and a device is simple to assemble, thus improving the safety and quality of the device, and facilitating the promotion of automatic and semi-automatic devices.
A: Disclosed are an automatic screw fitting device and an automated assembly system. The automatic screw fitting device comprises a frame (21), and a positioning mechanism (22), a take-up mechanism (23), a drive mechanism (24), and a screw supply mechanism (25) provided in the frame (21). The positioning mechanism (22) is used for positioning a product to be assembled at a specified position; the take-up mechanism (23) comprises a rotating disk (231) connected to the drive mechanism, a plurality of suction members (232) fixedly provided below the rotating disk (231) and located on the same circumference, and a screwdriver (233) connected to the drive mechanism and located above the circumference; the drive mechanism (24) drives the rotating disk (231) to rotate, and the screwdriver (233) is movable on the drive mechanism; the screw supply mechanism (25) comprises a supply disc (251) provided with supply positions corresponding to the suction members (232); the drive mechanism (24) drives the suction members (232) to obtain screws from the supply positions and move them above fitting positions, for the screwdriver (233) to fit the screws on the product to be assembled. The automatic screw fitting device and the automated assembly system can realize screw fitting in place of a human, reducing the manufacturing cost and improving the manufacturing efficiency and product quality.
B: A staple stuck processing mechanism of an electric stapler, and the electric stapler. The staple stuck processing mechanism of the electric stapler comprises a driving mechanism, a transmission mechanism (4), an ejection-type staple channel assembly (8), a controller, and an ejection mechanism; the transmission mechanism (4) is connected to an ejection switch of the ejection-type staple channel assembly (8) by means of the ejection mechanism; when the controller controls the driving mechanism to rotate in a staple loading direction, the ejection mechanism does not enable the staple channel assembly (8) to act, and when the controller controls the driving mechanism to rotate in a reverse direction of staple loading, the transmission mechanism (4) enables the ejection switch to act by means of the ejection mechanism to eject a staple channel of the staple channel assembly (8). Thus, stuck staples can be taken out conveniently.
C: Disclosed is a nailing apparatus, comprising: a support mechanism (100), and an energy storage mechanism (200) and an energy storage driving mechanism (300) both provided in the support mechanism (100), wherein the energy storage driving mechanism (300) comprises a power component (310), an eccentric component (320) connected to the power component (310) and a linear movement component (330) connected to the eccentric component (320), and the power component (310) comprises a driving electric motor (311) and a step-down gear (312) installed on an output shaft of the driving electric motor (311); a nailing driving mechanism (400), wherein the energy storage driving mechanism (300) drives the nailing driving mechanism (400) to hammer nail to drive the nail into a base material; when storing energy, the power component (310) drives the eccentric component (320) to rotate, driving the linear movement component (330) to make a linear movement, such that the energy storage mechanism (200) stores energy, and when the energy storage mechanism (200) releases energy, the energy storage mechanism (200) hammers a nail via the nailing driving mechanism (400). The nailing apparatus can realise the effects of reducing driving power, reducing energy consumption, having a reduced overall size, being light in weight, and being convenient to carry.
D: A riveting system comprises two or more rivets (1) and a riveting device (2). The rivet (1) comprises a mandrel (11). The riveting device (2) comprises two or more rivet gun heads (21). Each rivet gun head (21) is provided with a rivet gun hole (24). Each rivet (1) is provided with a first identifier. Each rivet gun head (21) is provided with a second identifier. If a rivet (1) matches a rivet gun head (21), the mandrel (11) of the rivet (1) is applicable to the rivet gun hole (24) of the rivet gun head (21). The first identifier of the rivet (1) is the same as or corresponds to the second identifier of the rivet gun head (21). The rivet gun head (21) and the rivet (1) are each provided with an identifier readily identifiable to the naked eye, such that a simple correspondence between a matched rivet (1) and rivet gun head (21) is established, enabling a user to rapidly identify the specifications of the rivet (1) and the rivet gun head (21) matching the rivet (1), reducing wastage of rivets (1), reducing the risk of damaging a rivet gun, and improving working efficiency.
Answer: D