Cleaning device for small-hole rock powder and silt in rock mass stress measurement

The invention discloses a small-hole rock silt cleaning device for rock mass stress measurement, which comprises a silt storage pipe cavity, a silt storage guide pipe, a spring, a spring trigger sleeve, a clamping ball, a plunger and the like, the silt storage pipe cavity is communicated with the outside through the silt storage guide pipe, and the front end of a guide pipe opening is a sleeve plunger part. The spring sleeve plunger valve is integrally formed by the end of the sediment storage guide pipe, the spring, the spring triggering sleeve, the clamping ball fixing groove, the clamping ball, the plunger, the sealing ring and the clamping ball releasing groove. The spring sleeve plunger valve is triggered at the bottom of the drill hole, rock powder and sediment at the bottom of the drill hole are sucked into the sediment storage pipe cavity through the sediment storage guide pipe by means of pressure inside and outside the cavity, the sediment cleaning device is lifted out of the hole through the steel