Seamless steel tube for thick-wall pipeline

Abstract

The seamless steel pipe for the thick-wall pipeline comprises a pipe body, a flowing groove is formed in one side of the interior of the pipe body, through grooves are formed in the positions, corresponding to the flowing groove, of the outer wall of the pipe body in an up-down mode, cover plates are connected into the through grooves in a sliding mode, and sliding grooves are formed in the cover plates. First penetrating grooves are symmetrically formed in the cover plates, second penetrating grooves are symmetrically formed in the cover plates, transverse rods which are symmetrically arranged are fixedly connected to the interiors of the sliding grooves, springs which are symmetrically arranged are fixedly connected to the outer walls of the transverse rods, and sliding plates which are symmetrically arranged are slidably connected to the interiors of the sliding grooves; the steel pipe connecting device has the advantages that the steel pipe connecting efficiency can be improved, the cover plates can be fixed in the through grooves under the control of the mechanisms, and foreign objects are prevented from entering the flowing grooves through the through grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipes, in particular to a seamless steel pipe for thick-walled pipelines. Background Art

[0002] Pipeline is a general term for various pipes, wires, cables, etc. laid together. The production and manufacturing process of thick-walled seamless steel pipes can be divided into four basic methods: cold drawing, cold rolling, hot rolling, and hot expansion.

[0003] In the prior art, when seamless steel pipes are connected, the connection of the steel pipes needs to be done by surfacing welding because the pipe wall is very thick. During the surfacing welding process, the pipe temperature is too high and thermal cracks will occur. Therefore, the welding work needs to be frequently interrupted to allow the pipe welding point to cool naturally before the welding work can be carried out again, which is very time-consuming and leads to low connection efficiency of the steel pipes. Utility Model Content

[0004] The utility model aims to provide a seamless steel pipe for thick-walled pipelines to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seamless steel pipe for thick-walled pipelines, comprising a pipe body, a flow groove is provided on one side of the interior of the pipe body, and a through groove is provided on the outer wall of the pipe body corresponding to the position of the flow groove, and a cover plate is slidably connected to the interior of the through groove, and a slide groove is provided on the interior of the cover plate, and a symmetrical first through groove is provided on the cover plate, and a symmetrical second through groove is provided on the cover plate, and a symmetrical cross bar is fixedly connected to the interior of the slide groove, and a symmetrical spring is fixedly connected to the outer wall of the cross bar, and a symmetrical sliding plate is slidably connected to the interior of the slide groove, and a finger pressure plate is fixedly connected to the sliding plate at the position corresponding to the first through groove, and a hanging plate is fixedly connected to the sliding plate at the position corresponding to the second through groove.

[0006] Preferably, there are two through grooves in total, and both of the through grooves are in communication with the flow groove.

[0007] Preferably, the first through groove and the second through groove are both in communication with the slide groove.

[0008] Preferably, the springs are all located inside the slide grooves, and the springs are all fixedly connected to the sliding plates.

[0009] Preferably, the finger pressure plates are all slidably connected inside the first through grooves, and the hanging plates are all slidably connected inside the second through grooves.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: a flow groove, a cover plate, a spring, a hanging plate and a sliding plate, etc. are provided, and cooling water can be continuously injected into the flow groove when the steel pipe is welded, so that the cooling water absorbs the heat of the steel pipe during welding, thereby reducing the number of interruptions of the welding work, thereby improving the efficiency of steel pipe connection, and each cover plate can be fixed inside the through groove under the control of each mechanism to prevent foreign objects from entering the flow groove through the through groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the cover plate and the through slot of the utility model when they are separated;

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the cover plate of the utility model;

[0015] Figure 5 This is a schematic diagram of the specific structure of the cover plate of the utility model;

[0016] Figure 6 It is a schematic diagram of the specific structure of the sliding plate of the utility model.

[0017] In the figure: 1, tube body; 2, flow groove; 3, through groove; 4, cover plate; 5, slide groove; 6, first through groove; 7, second through groove; 8, cross bar; 9, spring; 10, sliding plate; 11, finger pressure plate; 12, hanging plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-6The utility model provides a technical solution: a seamless steel pipe for thick-walled pipelines, comprising a pipe body 1, a flow groove 2 is provided on one side of the inner part of the pipe body 1, a through groove 3 arranged up and down is provided on the outer wall of the pipe body 1 corresponding to the position of the flow groove 2, a cover plate 4 is slidably connected inside the through groove 3, a slide groove 5 is provided inside the cover plate 4, a symmetrical first through groove 6 is provided on the cover plate 4, a symmetrical second through groove 7 is provided on the cover plate 4, a symmetrical cross bar 8 is fixedly connected inside the slide groove 5, a symmetrical spring 9 is fixedly connected to the outer wall of the cross bar 8, a symmetrical sliding plate 10 is slidably connected inside the slide groove 5, a finger pressure plate 11 is fixedly connected at the position of the sliding plate 10 corresponding to the first through groove 6, and a hanging plate 12 is fixedly connected at the position of the sliding plate 10 corresponding to the second through groove 7.

[0020] Furthermore, there are two through grooves 3 , and both through grooves 3 are in communication with the flow groove 2 .

[0021] Furthermore, the first through groove 6 and the second through groove 7 are both in communication with the slide groove 5 .

[0022] Furthermore, the springs 9 are all located inside the slide grooves 5 , and the springs 9 are all fixedly connected to the sliding plate 10 .

[0023] Furthermore, the finger pressure plates 11 are all slidably connected inside the first through slots 6 , and the hanging plates 12 are all slidably connected inside the second through slots 7 .

[0024] Specifically, when using the utility model, when the pipe body 1 is being welded, the finger pressure plate 11 can be pressed with the fingers, and then each finger pressure plate 11 can be pushed toward the middle direction at the same time, and the finger pressure plates 11 will drive the sliding plates 10 to move toward the direction of the cross bar 8. The movement of the sliding plates 10 will squeeze and contract the spring 9. At the same time, the sliding plates 10 will drive the hanging plates 12 to move. The movement of each hanging plate 12 will no longer clamp the groove wall of the flow groove 2 and the bottom end of the through groove 3. At this time, the cover plate 4 can be lifted out from the inside of the through groove 3, and then cooling water can be added to the inside of the flow groove 2 through the through groove 3. The flowing cooling water will absorb the heat of the pipe body 1, thereby reducing the number of welding interruptions.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seamless steel pipe for thick-walled pipeline, characterized in that: The invention comprises a tube body (1), wherein a flow groove (2) is provided on one side of the tube body (1), and a through groove (3) is provided on the outer wall of the tube body (1) at a position corresponding to the flow groove (2), wherein the through groove (3) is slidably connected with a cover plate (4), wherein the cover plate (4) is provided with a slide groove (5), wherein the cover plate (4) is provided with a symmetrically arranged first through groove (6), wherein the cover plate (4) is provided with a symmetrically arranged second through groove (7), wherein the slide groove (5) is fixedly connected with a symmetrically arranged cross bar (8), wherein the outer wall of the cross bar (8) is fixedly connected with a symmetrically arranged spring (9), wherein the slide groove (5) is slidably connected with a symmetrically arranged sliding plate (10), wherein the sliding plate (10) is fixedly connected with a finger pressure plate (11) at a position corresponding to the first through groove (6), and wherein the sliding plate (10) is fixedly connected with a hanging plate (12) at a position corresponding to the second through groove (7).

2. A thick-walled seamless steel pipe for pipeline according to claim 1, characterized in that: There are two through grooves (3) in total, and both through grooves (3) are in communication with the flow groove (2).

3. The thick-walled seamless steel pipe for pipeline according to claim 1, characterized in that: The first through groove (6) and the second through groove (7) are both in communication with the slide groove (5).

4. A thick-walled seamless steel pipe for pipeline according to claim 1, characterized in that: The springs (9) are all located inside the slide groove (5), and the springs (9) are all fixedly connected to the sliding plate (10).

5. The thick-walled seamless steel pipe for pipeline according to claim 1, characterized in that: The finger pressure plates (11) are all slidably connected inside the first through slots (6), and the hanging plates (12) are all slidably connected inside the second through slots (7).

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