Tensioning jack for pipeline repair

Abstract

The utility model discloses a tensioning jack for pipeline repair, which belongs to the technical field of pipeline repair and comprises a mounting block, a rotating motor mounted at one end in the mounting block, a turntable mounted at the output end of the rotating motor and attached to the end face of the mounting block, and an expansion hydraulic cylinder vertically mounted in the middle of the turntable. A transverse rod is installed at the output end of the expansion hydraulic cylinder, expansion plates are hinged to the opposite positions of the side edges of the rotary disc, and supporting rods are hinged to the positions between the inner sides of the expansion plates and the ends of the transverse rod. The fixing assembly composed of the double-end hydraulic cylinder and the positioning plate is arranged on the mounting block, the position of the device can be fixed after the device is moved to the position needing to be repaired, then the rotating motor is used for controlling the rotating disc and the expansion plate to rotate, the expansion position is rapidly changed, and the repair efficiency is improved. And the repairing speed and the repairing effect are improved.

Claims

1. An expansion jack for pipeline repair, comprising a mounting block (1), characterized in that: At one end inside the mounting block (1), a rotary motor (4) is installed. At the output end of the rotary motor (4), a turntable (5) that fits against the end face of the mounting block (1) is installed. At the middle position of the turntable (5), an expansion hydraulic cylinder (6) is vertically installed. At the output end of the expansion hydraulic cylinder (6), a cross bar (7) is installed. At the relative positions on the sides of the turntable (5), expansion plates (8) are hingedly installed. Between the inner sides of the expansion plates (8) and the ends of the cross bar (7), support rods (9) are hingedly installed. At one end of the mounting block (1) away from the rotary motor (4), a hydraulic joint (10) is provided. Outside the hydraulic joint (10), a positioning mechanism (11) for fixing the hydraulic pipe is provided. On the mounting block (1), a fixing component for positioning the mounting block (1) at the middle position inside the pipe is provided.

2. The expansion jack for pipeline repair according to claim 1, characterized in that: The shapes of the two groups of expansion plates (8) are both arc-shaped, and the surfaces of the expansion plates (8) are coated with an anti-rust coating.

3. The expansion jack for pipeline repair according to claim 1, characterized in that: The fixing component includes a double-headed hydraulic cylinder (2) and positioning plates (3). The double-headed hydraulic cylinder (2) is vertically installed inside the mounting block (1), and the two output ends of the double-headed hydraulic cylinder (2) both extend to the outside of the mounting block (1). At the two output ends of the double-headed hydraulic cylinder (2), positioning plates (3) are installed.

4. The expansion jack for pipeline repair according to claim 3, characterized in that: The positioning mechanism (11) includes a U-shaped plate (12), a limiting groove (13), and an extrusion component. The U-shaped plate (12) is fixed on the end face of the mounting block (1), and the U-shaped plate (12) is located outside the hydraulic joint (10). A limiting groove (13) is opened on the U-shaped plate (12), and an extrusion component is provided on the side of the limiting groove (13).

5. The expansion jack for pipeline repair according to claim 4, characterized in that: The extrusion component includes a through groove (14), a top block (15), an extrusion spring (16), a strip-shaped groove (17), and a pulling block (18). The through groove (14) is opened between the sides of the two groups of limiting grooves (13). At both ends of the through groove (14), top blocks (15) are slidably installed. Between the ends of the two groups of top blocks (15), an extrusion spring (16) is installed. A strip-shaped groove (17) is opened on the outside of the U-shaped plate (12). At both ends of the strip-shaped groove (17), pulling blocks (18) are slidably installed, and the pulling blocks (18) are connected to the ends of the top blocks (15).

6. The expansion jack for pipeline repair according to claim 5, characterized in that: The ends of the top blocks (15) close to the inside of the limiting groove (13) are both arc-shaped, and anti-slip patterns are provided at the ends of the top blocks (15).

7. The expansion jack for pipeline repair according to claim 6, characterized in that: The shape of the limiting groove (13) is U-shaped, and blocks are provided at the tops of the sides of the limiting groove (13).

Images