Double-flange dredging steel pipe

Abstract

The utility model discloses a double-flange dredging steel pipe, which belongs to the technical field of dredging steel pipes and comprises a dredging steel pipe body, a first half flange and a second half flange are sleeved at the lower end of the side part of the dredging steel pipe body, and the second half flange is buckled at the upper part of the first half flange. The dredging steel pipe body is movably sleeved with the first half flange and the second half flange, and the first half flange and the second half flange are assembled to form a complete flange. The dredging steel pipe body comprises a pipe body and baffle rings, and the baffle rings are symmetrically and fixedly connected to the side portion of the pipe body. The dredging steel pipe body further comprises limiting blocks, and the limiting blocks are evenly and fixedly connected to the outer portion of the pipe body. When a plurality of dredging steel pipe bodies are in butt joint, the first half flange and the second half flange are rotated along the outside of the dredging steel pipe bodies, so that the screw holes of the first half flange and the second half flange are aligned with the flange screw holes of the previous dredging steel pipe, the alignment difficulty of the flange screw holes is reduced, and butt joint of the dredging steel pipes is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of dredging steel pipes, in particular to a double-flange dredging steel pipe. Background Art

[0002] Dredging steel pipe adopts submerged arc welding technology, also known as submerged arc welded spiral steel pipe. Its main function is to clean steel pipes that transport sediment, mud and other mixed debris.

[0003] When two pipes are connected by screws, the screw holes of the flanges of the two dredging steel pipes need to be aligned so that the screws can pass through normally. However, the dredging steel pipe body has a relatively large weight and a relatively large rotational resistance, making it difficult to flip and align it, resulting in the problem of troublesome screw hole alignment for conventional double-flange dredging steel pipes.

[0004] To this end, we proposed double flange dredging steel pipe to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that the screw hole alignment of the conventional double-flange dredging steel pipe is troublesome, and proposes a double-flange dredging steel pipe.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The double flange dredging steel pipe comprises a dredging steel pipe body, the lower end of the side of the dredging steel pipe body is sleeved with a first half flange and a second half flange, the second half flange is buckled on the upper part of the first half flange, the first half flange and the second half flange are movably sleeved on the dredging steel pipe body, and the first half flange and the second half flange are assembled to form a complete flange. When multiple dredging steel pipe bodies are docked, the first half flange and the second half flange are rotated outside the dredging steel pipe body to align the screw holes of the first half flange and the second half flange with the flange screw holes of the previous dredging steel pipe, thereby reducing the difficulty of aligning the flange screw holes and facilitating the docking of multiple dredging steel pipes.

[0008] Preferably, the dredging steel pipe body includes a pipe body and a retaining ring, and the retaining ring is symmetrically fixedly connected to the side of the pipe body. After tightening the screws, the screws act on the first half flange or the second half flange, the first half flange and the second half flange act on the retaining ring, and the retaining ring acts on the pipe body, so as to facilitate the docking of the dredging steel pipe body.

[0009] Preferably, the dredging steel pipe body further comprises a stopper, which is evenly fixedly connected to the outside of the pipe body. The first half flange and the second half flange are sandwiched between the stopper and the retaining ring to improve the position stability of the first half flange and the second half flange.

[0010] Preferably, the first half flange includes a first arc-shaped strip, a first flange body, and a snap button. The first flange body is fixedly connected to the outside of the first arc-shaped strip, and the snap button is fixedly connected to both ends of the first arc-shaped strip. The snap button facilitates the fastening of the first half flange and the second half flange.

[0011] Preferably, the first half flange further includes a restraint ear, and the restraint ear is fixedly connected to both ends of the first flange body. Pass a screw through the restraint ear and the second half flange, and after tightening the screw, the screw presses the first half flange and the second half flange, improving the stability after the docking of the first half flange and the second half flange.

[0012] Preferably, the second half flange includes a second flange body and a second arc-shaped strip, and the second flange body is fixedly connected to the outside of the second arc-shaped strip. Sleeve the second arc-shaped strip and the first arc-shaped strip on the pipe body, and make the snap button buckle on the second arc-shaped strip, which facilitates the assembly of the first half flange and the second half flange to form a complete flange.

[0013] Preferably, the second half flange further includes a stop block, and the stop block is fixedly connected to the lower part of the second arc-shaped strip. Use the stop block to block the side of the snap button, improving the stability of the fastening position of the first half flange and the second half flange.

[0014] In summary, the technical effects and advantages of the present utility model are as follows:

[0015] 1. When docking multiple dredging steel pipe bodies, rotate the first half flange and the second half flange along the outside of the dredging steel pipe body so that the screw holes of the first half flange and the second half flange are aligned with the flange screw holes of the previous dredging steel pipe, reducing the difficulty of aligning the flange screw holes and facilitating the docking of multiple dredging steel pipes.

[0016] 2. After tightening the screw, through the screw acting on the first half flange or the second half flange, through the first half flange and the second half flange acting on the retaining ring, and through the retaining ring acting on the pipe body, it is convenient for the docking of the dredging steel pipe body.

[0017] 3. Use the limit block and the retaining ring to clamp the first half flange and the second half flange therebetween, improving the stability of the positions of the first half flange and the second half flange.

[0018] 4. Pass a screw through the restraint ear and the second half flange, and after tightening the screw, the screw presses the first half flange and the second half flange, improving the stability after the docking of the first half flange and the second half flange.

[0019] 5. Sleeve the second arc-shaped strip and the first arc-shaped strip on the pipe body, and make the snap button buckle on the second arc-shaped strip, which facilitates the assembly of the first half flange and the second half flange to form a complete flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 This is a schematic structural view of the dredging steel pipe body of the present utility model;

[0022] Figure 3 This is a schematic structural view of the first half flange of the present utility model;

[0023] Figure 4 This is a schematic structural view of the second half flange of the present utility model.

[0024] In the figure: 2, dredging steel pipe body; 3, first half flange; 4, second half flange; 21, pipe body; 22, retaining ring; 23, limiting block; 31, first arc-shaped strip; 32, first flange body; 33, snap button; 34, restraint ear; 41, second arc-shaped strip; 42, second flange body; 43, stop block. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments.

[0026] Refer to Figure 1 , the double-flange dredging steel pipe includes a dredging steel pipe body 2. A first half flange 3 and a second half flange 4 are sleeved on the lower side of the dredging steel pipe body 2. The second half flange 4 is buckled on the upper part of the first half flange 3. The first half flange 3 and the second half flange 4 are movably sleeved on the dredging steel pipe body 2, and the first half flange 3 and the second half flange 4 are assembled to form a complete flange. After the dredging steel pipe body 2 is manufactured, the first half flange 3 and the second half flange 4 are sleeved outside the dredging steel pipe body 2, and then the first half flange 3 and the second half flange 4 are buckled together.

[0027] Refer to Figure 1 and 2 , the dredging steel pipe body 2 includes a pipe body 21 and a retaining ring 22. The retaining ring 22 is symmetrically and fixedly connected to the side of the pipe body 21. After the screws are tightened, through the action of the screws on the first half flange 3 or the second half flange 4, through the first half flange 3 and the second half flange 4 acting on the retaining ring 22, and through the retaining ring 22 acting on the pipe body 21, the docking of the dredging steel pipe body 2 is realized.

[0028] Refer to Figure 1 and 2 , the dredging steel pipe body 2 further includes a limiting block 23. The limiting blocks 23 are evenly and fixedly connected to the outside of the pipe body 21. The first half flange 3 and the second half flange 4 are clamped between the limiting blocks 23 and the retaining rings 22.

[0029] Refer to Figure 1 , 23, the first half flange 3 includes a first arc strip 31, a first flange body 32 and a snap button 33, the first arc strip 31 is movably sleeved on the tube body 21, the first arc strip 31 is movably clamped between the retaining ring 22 and the limit block 23, the first flange body 32 is fixedly connected to the outside of the first arc strip 31, and the snap button 33 is fixedly connected to both ends of the first arc strip 31. The snap button 33 is used to snap the second half flange 4.

[0030] Reference Figure 1 and 3 The first half flange 3 also includes a binding ear 34, which is fixedly connected to both ends of the first flange body 32. The screws are passed through the binding ears 34 and the second half flange 4, and after the screws are tightened, the screws are pressed against the first half flange 3 and the second half flange 4.

[0031] Reference Figure 1 , 2 , 3 and 4, the second half flange 4 includes a second flange body 42 and a second arc strip 41, the upper part of the snap button 33 is snapped on the lower part of the second arc strip 41, the binding ear 34 is inserted on the second flange body 42, the second arc strip 41 is movably sleeved on the tube body 21, the second arc strip 41 is movably embedded between the retaining ring 22 and the limit block 23, and the second flange body 42 is fixedly connected to the outside of the second arc strip 41. The second arc strip 41 and the first arc strip 31 are sleeved on the tube body 21, so that the snap button 33 is snapped on the second arc strip 41.

[0032] Reference Figure 1 , 3 4, the second half flange 4 also includes a stopper 43, which is movably blocked at the side of the snap button 33, and the stopper 43 is fixedly connected to the lower part of the second arc strip 41. The stopper 43 is blocked at the side of the snap button 33 to improve the stability of the buckling position of the first half flange 3 and the second half flange 4.

[0033] Working principle: After the dredging steel pipe body 2 is produced and formed, the first half flange 3 and the second half flange 4 are put on the outside of the dredging steel pipe body 2, and then the first half flange 3 and the second half flange 4 are buckled. When multiple dredging steel pipe bodies 2 are docked, the first half flange 3 and the second half flange 4 are rotated along the outside of the dredging steel pipe body 2 to align the screw holes of the first half flange 3 and the second half flange 4 with the flange screw holes of the previous dredging steel pipe, which reduces the difficulty of aligning the flange screw holes and facilitates the docking of multiple dredging steel pipes.

[0034] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.

[0035] The description briefly mentions the application direction of the prior art that is known to those skilled in the art for the utility model and has not been changed, and combines with the utility model to form a complete technology; by avoiding over-popularizing the well-known technology of those skilled in the art, it is used to assist those skilled in the art to quickly understand the main content of the utility model.

Claims

1. Double flange dredging steel pipe, characterized by: The dredging steel pipe body (2) comprises a first half flange (3) and a second half flange (4) on the lower side end of the dredging steel pipe body (2); the second half flange (4) is buckled on the upper part of the first half flange (3); the first half flange (3) and the second half flange (4) are movably mounted on the dredging steel pipe body (2); the first half flange (3) and the second half flange (4) are assembled to form a complete flange.

2. The double flange dredging steel pipe according to claim 1, characterized in that: The dredging steel pipe body (2) comprises a pipe body (21) and a retaining ring (22), wherein the retaining ring (22) is symmetrically fixedly connected to the side of the pipe body (21).

3. The double flange dredging steel pipe according to claim 2 is characterized in that: The dredging steel pipe body (2) further comprises a limit block (23), wherein the limit block (23) is evenly and fixedly connected to the outside of the pipe body (21).

4. The double flange dredging steel pipe according to claim 1, characterized in that: The first half flange (3) comprises a first arc-shaped strip (31), a first flange body (32) and a spring buckle (33), wherein the first flange body (32) is fixedly connected to the outside of the first arc-shaped strip (31), and the spring buckle (33) is fixedly connected to both ends of the first arc-shaped strip (31).

5. The double flange dredging steel pipe according to claim 4, characterized in that: The first half flange (3) further comprises binding ears (34), wherein the binding ears (34) are fixedly connected to the two ends of the first flange body (32).

6. The double flange dredging steel pipe according to claim 1, characterized in that: The second half flange (4) comprises a second flange body (42) and a second arc-shaped strip (41), wherein the second flange body (42) is fixedly connected to the outside of the second arc-shaped strip (41).

7. The double flange dredging steel pipe according to claim 6, characterized in that: The second half flange (4) further comprises a stopper (43), wherein the stopper (43) is fixedly connected to the lower part of the second arc-shaped strip (41).

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