A moving-rotating linear covering tool, comprising a port, a primary oil cylinder, a piston rod, a rear end cover, a base sleeved on the right end of the primary oil cylinder, and a handle fixedly connected onto the outer cylinder of the base. The port is fixedly connected to the left end of the pri
A moving-rotating linear covering tool, comprising a port, a primary oil cylinder, a piston rod, a rear end cover, a base sleeved on the right end of the primary oil cylinder, and a handle fixedly connected onto the outer cylinder of the base. The port is fixedly connected to the left end of the primary oil cylinder, the center thereof being provided with a circular hole that clearance-fits the piston rod arranged in the primary oil cylinder. A circular flange of the rear end cover is fixedly connected onto the right end face of the primary oil cylinder. The base is connected to a guide supporting sheath sleeved, in a clearance-fitted way, on the outer cylinder of the primary oil cylinder. A bearing seat is provided on the right end wall of the base Two screw holes are symmetrically provided at the right end face of the rear end cover.
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1. A moving-rotating linear covering tool, comprising a port, a primary oil cylinder, a piston rod, a rear end cover, a base, and a handle, a first end of the port is fixedly connected to the left end of the primary oil cylinder, the center of the port being provided with a circular hole that cleara
1. A moving-rotating linear covering tool, comprising a port, a primary oil cylinder, a piston rod, a rear end cover, a base, and a handle, a first end of the port is fixedly connected to the left end of the primary oil cylinder, the center of the port being provided with a circular hole that clearance-fits the piston rod arranged in the primary oil cylinder; a circular flange of the rear end cover is fixedly connected onto the right end face of the body of the primary oil cylinder; being a housing with a U-shaped section, the base is sleeved on the right end of the primary oil cylinder, and is connected to a guide supporting sheath that is sleeved, in a clearance-fitted way, on the outer cylinder of the primary oil cylinder; the handle is fixedly connected onto the outer cylinder of the base; characterized in that a bearing seat having a stepped hole with large diameter on the right and small diameter on the left is provided on the right end wall of the base, two screw holes are symmetrically provided at the right end face of the rear end cover; and by means of the bearing seat and the two screw holes, a rotating mechanism that rotates the primary oil cylinder with respect to the base around an axis and a moving mechanism that moves the primary oil cylinder with respect to the base towards the left or right along the axial direction are provided in turn from outside to inside, wherein a second end of the port connects with a valve port of a subsea tree. 2. The moving-rotating linear covering tool according to claim 1, characterized in that, the rotating mechanism comprises a rotary oil cylinder, rotary arms, a rotary disc, a bearing, a coupling, and a retainer ring; the rotary arms are two cylinders each provided on one end with a hexagon head and a thread in connection with a screw hole on the rear end cover; two grooves allowing insertion of the other ends of rotary arms are symmetrically provided on the circumference of the rotary disc, a rotary shaft having, sequentially from left to right, a separation segment, a bearing segment and a coupling segment with large, medium and small diameters respectively is provided at the center of the right end of the rotary disc, and a retainer ring groove for installing the retainer ring is further provided on the circumference, close to the right end face, of the bearing segment having the medium diameter; the bearing is fixed in the small-diameter hole of the bearing seat; the rotary shafts of the rotary disc pass through the bearing from left to right, the left end of the bearing is closely attached to the right end face of the separation segment, and the right end of the bearing is closely attached to the retainer ring installed in the retainer ring groove; the rotary oil cylinder is fixedly connected to the right end face of the base through a flange; the coupling is arranged in the large-diameter hole of the bearing seat, the left-end inner hole of the coupling is in keyed connection with the coupling segment of the rotary shaft, and the right end of the coupling is connected to a cylinder rotary shaft of the rotary oil cylinder. 3. The moving-rotating linear covering tool according to claim 2, characterized in that, the rotation angle of the rotary oil cylinder is 0 to 45°±1°. 4. The moving-rotating linear covering tool according to claim 2, characterized in that, the coupling is an elastic coupling. 5. The moving-rotating linear covering tool according to claim 4, characterized in that, the elastic coupling is a slider coupling. 6. The moving-rotating linear covering tool according to claim 2, characterized in that, the bearing is a roller bearing or needle bearing. 7. The moving-rotating linear covering tool according to claim 1, characterized in that, the moving mechanism comprises a movable oil cylinder, a companion flange, and a movable piston rod, the right end face of the movable oil cylinder is fixedly connected to the center of the left end face of the rotary disc; a ball head is provided on the end of the movable piston rod, and is connected to the right end face of the rear end cover through the companion flange. 8. The moving-rotating linear covering tool according to claim 7, characterized in that, the moving stroke of the movable oil cylinder is 26 mm, which is equal to the working height of the port plus a margin of 5 mm. 9. The moving-rotating linear covering tool according to claim 1, characterized in that, several auxiliary holes are formed on the circumferential wall of the base. 10. The moving-rotating linear covering tool according to claim 1, characterized in that, the port is a standard type-A port, conforming to the GB/T21412-2010 standard, and the handle is a type-B handle, conforming to the GB/T21412-2010 standard.
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