Lost circulation detection device

A lost circulation detection device, comprising:

• a first detection member, wherein a first accommodating groove is disposed on a side wall of the first detection member, and the first accommodating groove is configurable to be in communication with a rockshaft;
• a first signal transmitter and a first signal receiver are disposed in the first accommodating groove, and the first signal transmitter and the first signal receiver are disposed oppositely and spaced apart along an axial direction of the rockshaft, and the first signal transmitter transmits a signal along the axial direction of the rockshaft, so that the first signal receiver acquires data information of drilling fluid in the axial direction of the rockshaft;
• and
• a second detection member securely connected with the first detection member;
• wherein a fluid channel penetrating through the second detection member is disposed in the second detection member, and the fluid channel is configurable to be in communication with the rockshaft;
• a second accommodating groove is further disposed in the second detection member, and the second accommodating groove penetrates through the fluid channel and intersects with a center line of the fluid channel;
• a second signal transmitter and a second signal receiver are disposed in the second accommodating groove, and the second signal transmitter and the second signal receiver are disposed oppositely on two sides of the fluid channel, and the second signal transmitter transmits a signal along a center line of the second accommodating groove, so that the second signal receiver acquires data information of drilling fluid in a circumferential direction of the rockshaft.