Stretchable rotary locking type storage battery measuring probe

The invention provides a stretchable rotary locking type storage battery measuring probe. The problem that a storage battery in a narrow space cannot be online monitored can be effectively solved. According to the technical scheme, the stretchable rotary locking type storage battery measuring probe is mainly composed of a probe, a two-core spring wire, a measuring rod, a switch, a rubber sleeve, a measuring rod plug, four-core test wires, a test wire adapter, a six-core test wire and an aviation plug, wherein the probe is connected with the top of the measuring rod; the measuring rod is composed of four sections; the switch is adhered to an outer wall at the bottom of the measuring rod; the rubber sleeve is sleeved on the exterior of the measuring rod; a signal processing circuit is built in the measuring rod; a through hole is formed in the center of the measuring rod plug; the four-core test wires penetrate into the measuring rod plug; two cores of the four-core test wires are connected with the signal proc