Please select the most similar patent number from A, B, C and D. Which number is?
An oral irrigator having an easy-to-clean water suction tube (2), said oral irrigator comprising a machine body (1), the water suction tube (2), and a water tank (3) which is detachably connected to the machine body (1). The inside of the machine body (1) is also provided with a water path assembly (5) which is in communication with the water suction tube (2). The water suction tube (2) is arranged separately from the water path assembly (5), and the water suction tube (2) is detachably fixed within the water tank (3). When the water suction tube (2) or the water path assembly (5) is blocked, a user can easily clear and clean the water suction tube (2) or the water path assembly (5), thereby increasing the user cleaning efficiency, and improving the user experience.
A: A tooth rinsing device, comprising a shell (1), a tooth rinsing part (2), and a water nozzle part (3), the tooth rinsing part (2) being arranged in the shell (1) and having a water inlet and a water outlet, and the water nozzle part (3) being connected to the water outlet of the tooth rinsing part (2); also comprising a winding mechanism (4) and a water pipe (5) capable of bending and winding, the water pipe (5) being wound by means of the winding mechanism (4), reducing the space occupied by the water pipe (5), being convenient to carry, package, and transport, and also preventing the water pipe (5) from being lost; using the water pipe (5) capable of bending and winding is convenient for placing a second end of the water pipe (5) in a container filled with water or connecting same to a water source, having broad usage scenarios.
B: A misting fan comprises a fan body (1) and a misting part, wherein the misting part comprises a water tank (2) provided with a water inlet (21), connected to the bottom of the fan body (1); a water outflow nozzle (3) arranged at the top of the fan body (1); a water suction tube (4), wherein an upper end of the water suction tube (4) is connected to the water outflow nozzle (3), a lower end of the water suction tube (4) passes through the water inlet (21) of the water tank (2) and then into the water tank (2) to the bottom thereof, and a water outflow switch (5) for controlling the water outflow of the water suction tube (4) is arranged in the middle of the water suction tube (4); and a hand air pump (6) used for pumping up the interior of the water tank (2) and arranged in the water tank (2), wherein a piston rod (61) of the hand air pump (6) protruding out of the water tank (2) and connected to a pump grip (7). The components of the misting fan have simple structures, requiring no water pump, and thus the cost and failure rate are low; and one pumping can produce misting for a period of time and the operation is convenient.
C: A handheld electric iron (100), comprising: a housing (1), a bottom plate assembly (2), and a water tank assembly (3). The water tank assembly (3) comprises a water tank (31), a water pump (32), and a water absorption member (7) capable of absorbing water; a water storage chamber (313) being provided in the water tank (31); the water pump (32) is communicated with a water outlet (312) by means of a water inlet pipe (33) and is communicated with a vaporizing chamber (21) by means of a water outlet pipe (34); the water absorption member (7) is configured to absorb water from the water storage chamber (313) to supply water to the water pump (32).
D: A sinking and floating type water pump, an anti-sinking base (1), a water suctioning throat (2), a feedback device (3), a pump tank (4), a control end (5), a handle (6), and a water outlet pipe (7). The top end of the anti-sinking base (1) is fixedly connected to the interior of the pump tank (4) in an embedded manner; the lower end of the pump tank (4) is connected to the water suctioning throat (2) in a nested manner; the water suctioning throat (2) is in clearance fit with the interior of the water outlet pipe (7); the left side of the water outlet pipe (7) is in clearance fit with the handle (6); the feedback device (3) movably matches the interior of the pump tank (4); the lower end of the water suctioning throat (2) is in clearance fit with the anti-sinking base (1). The anti-sinking base (1) comprises a support frame (11), a cover sheet (12), and a base body (13). The support frame (11) movably matches the interior of the base body (13); the upper surface of the base body (13) is in nested fit with the cover sheet (12), and the cover sheet (12) is in clearance fit with the surface of the support frame (11). When a swinging ring (111) sinks, supporting rods (a3) are driven to be unfolded by reverse impact force with respect to water flow, and while upfolding, a floating block (a1) fixed by matching a fixing groove (b2) moves horizontally and downwards, such that a folding toothed plate (b4) at the bottom of the floating block (a1) is inserted into the surface of sludge and plays a role in supporting the pump tank (4), thereby effectively avoiding the problem of the impact of water quantity throughput caused due to the fact that the pump tank (4) is too heavy and sunk into the sludge.
Answer: A