Double-needle sample adding device

The utility model discloses a sample double-needle sample adding device, which is driven by a sample adding needle driving component to realize that a first sample needle and a second sample needle respectively do independent vertical motion, and double needles can be simultaneously contacted with a liquid level or independently contacted with the liquid level according to control requirements. Through the liquid level sensing assembly, the detection and feedback of the vertical movement position of the sample needle can be realized; through the anti-collision module, the sample needle can beprevented from being damaged when vertical collision occurs to the sample needle; the sample double-needle sample adding device is arranged in a high-speed biochemical analyzer; the double-needle independent sample adding mode is adopted, the problems that double-needle overhead liquid discharging and sample adding have high requirements for a liquid path system and sample adding is unstable can be solved, meanwhile, due