Patent ID: 11905775
Assignee: SICHUAN UNIVERSITY
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 5:
6. The driving system for a core drilling rig according to claim 5, further comprises a flow diverging module that comprises a valve housing (31), a lock housing (32) and a trigger mechanism, wherein the valve housing (31) is disposed inside the lock housing (32), and a rear of the lock housing (32) is connected to the connecting pipe (21), wherein the valve housing (31) comprises a sealing section C (311) and a diversion section (312), the lock housing (32) includes an inflow section B (321) and an outflow section B (322), a fluid channel D (44) is disposed between the central rod (14) and the inflow section B (321), a fluid channel E (45) is disposed between the outer wall of the central rod (14) and the inner wall of the valve housing (31), a back end of the fluid channel D (44) communicates with the fluid channel B (42), and the fluid channel E (45) communicates with the fluid channel D (44), and the fluid channel E (45) communicates with a cooling hole of a front drill bit, and an inner diameter of the inflow section B (322) is longer than an outer diameter of the sealing section C (311), while an outer diameter of the sealing section C (311) is longer than an outer diameter of the diversion section (312), and an inner diameter of the outflow section B (322) is equal to an outer diameter of the sealing section C (311), the outflow section B (322) is provided with an outflow hole B (3221), and the outflow hole B (3221) communicates with the driving liquid channel (74) of the driving motor (7), and a front end of sealing section C (311) is in the inflow section B (321), wherein the fluid channel D (44) and the outflow hole B (3221) are connected, and a front end of the lock housing (32) is connected to a rear end of the coupling (76).