Hydraulic jack expansion-type rotary penetration device for circular pipe
OwnerKyu Sang Kiminventor
Life of this patent
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Abstract
A hydraulic jack expansion-type rotary penetration device for a circular pipe comprises: a rotating head which receives torque from the outside; one or more hollow shafts arranged in series downward along the central axis of the rotating head; shaft-connection socket which interconnect the first hollow shaft which is connected to the rotating head with the remaining adjacent hollow shafts, to thereby transmit the torque of the rotating head; and one or more clamp modules which are installed in the hollow shafts and pressed against the inner surface of the circular pipe by hydraulic pressure generated in the rotating head to thereby generate clamping force.
Claims5
A hydraulic jack expansion-type rotary penetration device for circular pipe for rotating and inserting a circular pipe (5), the device comprising:
- a rotating head (20) which receives external torque;
- a hollow shaft (30) arranged in series downward along the central axis of the rotating head (20);
- a shaft connection socket (40) which interconnects the first hollow shaft (30) which is connected to the rotating head (20) with the remaining adjacent hollow shafts (30 and 30), to thereby transfer the torque of the rotating head (20);
- and
- a clamping module (50) which is installed in the hollow shaft (30) and pressed against the inner wall of the circular pipe (5) by hydraulic pressure generated in the rotating head (20) to thereby generate clamping force.
Dependencies are inferred from the claim text.