Testing plug-type instrument lock

Provided is a testing plug-type instrument lock. The problem that an instrument lifting device wastes time and effort and an instrument easily falls is mainly solved. The testing plug-type instrument lock is characterized in that an upper press plug (1), an upper overflow connector (2), a lower overflow connector (3) and a plug body (4) are sequentially connected, a connecting sleeve (5) is arranged in a lower-portion hole formed in the plug body (4), a sliding sleeve (6) is arranged in the connecting sleeve (5), an upper track sleeve (7) and a lower track sleeve (8) are connected in the connecting sleeve (5), lifting teeth are arranged on the corresponding faces of the upper track sleeve (7) and the lower track sleeve (8), a spring is arranged between the sliding sleeve (6) and the plug body (4), two sides of the lower portion of the sliding sleeve (6) are in hinged connection with two clamping jaws (9) with torsion springs, the clamping jaws (9) are Y-shaped, and a through hole is formed in the upper end of the sliding sleeve (6) and the upper press plug (1). The testing plug-type instrument lock has the advantages of saving time and effort and being convenient and quick to use, safe and reliable.