CN219688047U

CN219688047U - Steel pipe mouth protection device

Info

Publication number: CN219688047U
Application number: CN202321121395.1U
Authority: CN
Inventors: 薄明慧; 李保伟; 田爽
Original assignee: Beijing Hanjianheshan Pipeline Co ltd
Current assignee: Beijing Hanjianheshan Pipeline Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-09-15
Anticipated expiration: 2033-05-08

Abstract

The utility model relates to the technical field of large-caliber thin-wall steel pipes, in particular to a steel pipe orifice protection device, which comprises a central plate arranged in a steel pipe orifice, a plurality of telescopic rods arranged around the periphery of the central plate and an orifice protection plate arranged at the outer ends of the telescopic rods, wherein one ends of the telescopic rods are fixed on the central plate, the other ends of the telescopic rods are tightly propped against the inner wall of the orifice protection plate, the section of the orifice protection plate is of an L-shaped structure, the outer wall of the orifice protection plate is an arc surface, the outer wall of the orifice protection plate is attached to the inner wall of the steel pipe orifice, the end part of the steel pipe orifice is limited at the inner side of the bent end of the orifice protection plate, the lengths of the telescopic rods are adjusted according to the caliber of the steel pipe, and the telescopic rods provide propping force for the orifice protection plate, so that the outer ends of the telescopic rods are tightly propped against the orifice protection plate, the steel pipe orifice can keep the original shape all the time during transportation and lifting, and deformation cannot occur after stress.

Description

Steel pipe mouth protection device

Technical Field

The utility model relates to the technical field of large-caliber thin-wall steel pipes, in particular to a steel pipe orifice protection device.

Background

When the large-caliber thin-wall steel pipe is transported, stored and hoisted, the pipe orifice of the steel pipe is easy to extrude, the pipe orifice is deformed, a long metal rod is often used in the pipe orifice in the prior art, the long metal rod and the inner wall of the steel pipe are fixed and then transported through welding, the long metal rod is very troublesome in installation and disassembly, and the welding position of the long metal rod and the pipe wall of the steel pipe is easy to damage the pipe wall of the steel pipe during welding and disassembly due to the thin wall of the steel pipe.

Disclosure of Invention

The utility model provides a steel pipe orifice protection device, which aims to solve the technical problems that the existing steel pipe orifice protection device is inconvenient to assemble and disassemble due to the fact that a metal long rod is used for supporting and a welding mode is used for fixing, and the damage to the pipe wall of a steel pipe is easy to occur.

The technical scheme adopted by the utility model is that the steel pipe orifice protection device comprises a central plate arranged in a steel pipe orifice, a plurality of telescopic rods arranged around the periphery of the central plate and an orifice protection plate arranged on the outer ends of the telescopic rods, wherein one ends of the telescopic rods are fixed on the central plate, the other ends of the telescopic rods are tightly propped against the inner wall of the orifice protection plate, the section of the orifice protection plate is of an L-shaped structure, the outer wall of the orifice protection plate is an arc surface, the outer wall of the orifice protection plate is attached to the inner wall of the steel pipe orifice, and the end part of the steel pipe orifice is limited to the inner side of the bent end of the orifice protection plate.

The telescopic link is provided with the draw-in groove towards the one end of center board, the center board is circular plate structure, the periphery embedding of center board is in the draw-in groove of telescopic link one end and through the bolt-up.

The outer wall of the mouth guard plate is also provided with an L-shaped rubber pad.

And a cushion block is further arranged between the telescopic rod and the mouth guard plate, and the cushion block is fixed on the telescopic end of the telescopic rod and is tightly propped against the inner wall of the mouth guard plate.

The telescopic rod comprises a rod barrel and a rod body arranged in the rod barrel, wherein a limiting block is arranged at one end of the rod body extending into the rod barrel, a limiting ring is arranged on the inner wall of a port of the rod barrel, the outer diameter of the limiting block is larger than the inner diameter of the limiting ring after being matched with the inner wall of the rod barrel, an external thread is arranged outside the rod body, an internal thread matched with the external thread is arranged on the inner wall of the limiting ring, one end of the rod barrel is fixed with a central plate, and the outer end of the rod body is tightly propped against a mouth guard.

The utility model has the beneficial effects that the length of the plurality of telescopic rods is adjusted according to the caliber of the steel pipe, and the telescopic rods provide a propping force for the mouth guard plate, so that the outer ends of the telescopic rods prop against the mouth guard plate, and the mouth guard plate can keep the original shape all the time during transportation and hoisting, and cannot deform after being stressed.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

fig. 3 is a schematic cross-sectional structure of the telescopic rod.

In the drawings, 1, a central plate, 2, a telescopic rod, 3, a mouth guard, 4, a rubber pad, 5, a rod barrel, 6, a rod body, 7, a limiting block, 8 and a limiting ring. 9. And bolts, 10 and a cushion block.

Detailed Description

As shown in fig. 1-2, the utility model provides a steel pipe orifice protection device, which comprises a central plate 1 arranged in a steel pipe orifice, a plurality of telescopic rods 2 arranged around the periphery of the central plate 1 and an orifice protection plate 3 arranged on the outer end of the telescopic rods 2, wherein one end of each telescopic rod 2 is fixed on the central plate 1, the other end of each telescopic rod is tightly propped against the inner wall of the orifice protection plate 3, the section of the orifice protection plate 3 is of an L-shaped structure, the outer wall of the orifice protection plate 3 is an arc surface, the outer wall of the orifice protection plate 3 is attached to the inner wall of the steel pipe orifice, and the end part of the steel pipe orifice is limited inside the bending end of the orifice protection plate 3.

According to the length of a plurality of telescopic links 2 of steel pipe bore adjustment, provide the tight power of top through telescopic link 2 for mouth guard 3, make the tight mouth guard 3 of telescopic link 2 outer end top, make the steel pipe mouth of pipe can keep the former shape always when transportation and hoist and mount, can not take place to warp after the atress, support and spacing the steel pipe mouth of pipe through multiunit telescopic link 2 and mouth guard 3, connect a plurality of telescopic links 2 through center plate 3, mouth guard 3 is the L type that the outer end upwards buckles, after the installation, steel pipe mouth of pipe tip and mouth guard 3 buckle the inboard top tightly, steel pipe mouth of pipe inner wall and mouth guard 3 up end top tightly, can fix a position and spacing mouth guard 3 position, mouth guard 3 up end is the cambered surface and can laminate with the steel pipe inner wall completely.

As shown in fig. 1-2, a clamping groove is formed in one end, facing the central plate 1, of the telescopic rod 2, the central plate 1 is in a circular plate structure, and the periphery of the central plate 1 is embedded into the clamping groove in one end of the telescopic rod 2 and is fastened through bolts 9.

The center plate 1 is circular plate structure, and telescopic link 2 is circular array formula setting in center plate 1 periphery, and the atress is more even, and center plate 1 and telescopic link 2 are when fixed, with in the draw-in groove of center plate 1 periphery embedding telescopic link 2, through bolt 9 fastening, can fix a position fixed position through the draw-in groove, more easy to assemble.

As shown in fig. 1-2, an L-shaped rubber pad 4 is also arranged on the outer wall of the mouth guard 3.

The rubber pad 4 can increase the friction between the mouth guard plate 3 and the inner wall of the steel pipe, and can also be used as buffer to avoid the damage of the mouth guard plate 3 to the inner wall of the steel pipe.

As shown in fig. 1-2, a cushion block 10 is further arranged between the telescopic rod 2 and the mouth guard 3, and the cushion block 10 is fixed on the telescopic end of the telescopic rod 2 and is tightly propped against the inner wall of the mouth guard 3.

The cushion block 10 increases the contact area and improves the stability of the telescopic rod 2 when propping against the mouth guard 3.

As shown in fig. 3, the telescopic rod 2 comprises a rod barrel 5 and a rod body 6 arranged in the rod barrel 5, a limiting block 7 is arranged at one end of the rod body 6 extending into the rod barrel 5, a limiting ring 8 is arranged on the inner wall of a port of the rod barrel 5, the limiting block 7 is matched with the inner wall of the rod barrel 5, the outer diameter of the limiting block 7 is larger than the inner diameter of the limiting ring 8, an external thread is arranged outside the rod body 6, an internal thread matched with the external thread is arranged on the inner wall of the limiting ring 8, one end of the rod barrel 5 is fixed with a central plate, and the outer end of the rod body 6 is tightly propped against the mouth guard 3.

Through rotatory body of rod 6, with the help of the internal and external screw thread of spacing ring 8 and body of rod 6, make body of rod 6 stretch out and draw back, the length of adjustment telescopic link 2 that can be convenient according to the steel pipe bore, convenient to use, application scope is wide, and stopper 7 is spacing the length that body of rod 6 stretches out, avoids body of rod 6 to stretch out overlength and barrel 5 to break away from.

Claims

1. A steel pipe mouth protection device which is characterized in that: including setting up center board (1) in steel pipe mouth, around a plurality of telescopic links (2) and the mouth guard (3) of setting on telescopic link (2) outer end of center board (1) periphery setting, telescopic link (2) one end is fixed in center board (1), the other end is tight with mouth guard (3) inner wall top, mouth guard (3) cross-section is L type structure and mouth guard (3) outer wall is the cambered surface, mouth guard (3) outer wall and steel pipe mouth of pipe inner wall laminating and steel pipe mouth of pipe tip limit are located mouth guard (3) bending end inboard.

2. A steel pipe orifice protection apparatus as set forth in claim 1, wherein: the telescopic rod (2) is provided with a clamping groove towards one end of the central plate (1), the central plate (1) is of a circular plate structure, and the periphery of the central plate (1) is embedded into the clamping groove at one end of the telescopic rod (2) and is fastened through a bolt (9).

3. A steel pipe orifice protection apparatus as set forth in claim 1, wherein: the outer wall of the mouth guard plate (3) is also provided with an L-shaped rubber pad (4).

4. A steel pipe orifice protection apparatus as set forth in claim 1, wherein: a cushion block (10) is further arranged between the telescopic rod (2) and the mouth guard plate (3), and the cushion block (10) is fixed on the telescopic end of the telescopic rod (2) and is tightly propped against the inner wall of the mouth guard plate (3).

5. A steel pipe orifice protection apparatus as set forth in claim 1, wherein: the telescopic rod (2) comprises a rod barrel (5) and a rod body (6) arranged in the rod barrel (5), wherein a limiting block (7) is arranged on one end of the rod body (6) extending into the rod barrel (5), a limiting ring (8) is arranged on the inner wall of a port of the rod barrel (5), the limiting block (7) is matched with the inner wall of the rod barrel (5) and the outer diameter of the limiting block (7) is larger than the inner diameter of the limiting ring (8), an external thread is arranged outside the rod body (6), an internal thread matched with the external thread is arranged on the inner wall of the limiting ring (8), one end of the rod barrel (5) is fixed with a central plate, and the outer end of the rod body (6) is tightly propped against the mouth guard (3).