Dredging wear-resistant pipeline

Abstract

The utility model relates to the technical field of dredging equipment, in particular to a wear-resistant dredging pipeline which comprises a pipeline body and a connecting mechanism. A clamping ring is coaxially arranged on the pipeline body, and a protruding ring is arranged on the end face of the pipeline body. The connecting mechanism comprises two connecting frames arranged in an attached mode, a first sealing ring, a second sealing ring, two mounting plates symmetrically arranged on the connecting frames, two fixing bolts penetrating through the mounting plates, and nuts which are in threaded connection with the fixing bolts and abut against the mounting plates, wherein the first sealing ring and the second sealing ring are arranged between the connecting frames and the pipeline body. The fixing disc is coaxially arranged on the connecting frame, a positioning groove allowing the clamping ring to be embedded is formed in the connecting frame, and a plurality of mounting holes are formed in the fixing disc. According to the utility model, not only can the tightness of the pipeline joint be improved, but also the disadvantage that the pipeline is not convenient to disassemble and replace due to the fact that the pipeline is assembled in a traditional welding mode can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dredging equipment, in particular to a dredging wear-resistant pipeline. Background Art

[0002] Dredging wear-resistant pipes are crucial equipment for large-scale dredgers and sand pumping vessels. They possess high wear resistance, corrosion resistance, and high strength to adapt to harsh working environments. Dredging wear-resistant pipes can effectively improve the efficiency of large-scale dredgers and sand pumping vessels, reduce maintenance times, and extend their service life.

[0003] Chinese patent publication number CN206973104U discloses a highly wear-resistant flared pipe joint, comprising a dredging pipe, the end of which is embedded in the pipe joint. The pipe joint ring is characterized by a hollow frustum structure surrounded by multiple grooves, each containing a steel ring. This pipe joint has a reasonable structure, is easy to use, and has low production costs. By embedding the pipe into the dredging pipe, a flared structure is formed, which, when combined with an external flange, enables a seamless connection.

[0004] However, the above technical solution has the following shortcomings: the sealing effect of the fitting surface of the pipe joint connection part is poor, and the joint is prone to leakage. In addition, the flange and the pipe are fixed by welding, which is not conducive to the subsequent disassembly and replacement of the pipe, reducing the practicality of the pipe. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology and propose a dredging wear-resistant pipe, which can not only improve the tightness of the pipe connection, but also avoid the disadvantage of assembling the pipe by traditional welding, which is not conducive to the disassembly and replacement of the pipe.

[0006] The technical solution of the utility model is a dredging wear-resistant pipe, comprising a pipe body and a connecting mechanism; a clamping ring is coaxially arranged on the pipe body, and a convex ring is arranged on the end face of the pipe body; the connecting mechanism comprises two fittingly arranged connecting frames, a first sealing ring and a second sealing ring arranged between the connecting frames and the pipe body, two mounting plates symmetrically arranged on the connecting frames, two fixing bolts penetrating the mounting plates, nuts threadedly connected to the fixing bolts and abutting against the mounting plates, and a fixing plate coaxially arranged on the connecting frame, a positioning groove for embedding the clamping ring is provided inside the connecting frame, and a plurality of mounting holes are provided on the fixing plate.

[0007] Preferably, a first groove is formed between the clamping ring and the convex ring, and the first sealing ring is located inside the first groove.

[0008] Preferably, a second groove is formed between the clamping ring and the connecting frame, and the second sealing ring is located inside the second groove.

[0009] Preferably, a transition layer is provided on the outside of the pipe body, a protective layer is provided on the outside of the transition layer, a circular groove is provided on the connecting frame, and both ends of the transition layer and the protective layer are located inside the circular groove and abut against each other.

[0010] Preferably, the fixing plate and the connecting frame are provided with a plurality of reinforcing ribs distributed in an annular array.

[0011] Preferably, an insert block is provided on the connecting frame at one end of the pipe body, and a limiting groove is provided on the connecting frame at the other end of the pipe body, and the insert block can be embedded in the internal arrangement of the limiting groove.

[0012] Preferably, the shape of the two plug-in blocks is a cylinder, and the limiting groove and the cylinder are adapted to each other.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] The utility model can fix the connecting frame and the pipeline body with the connecting mechanism, avoiding the disadvantage of fixing by welding in the traditional way, which is not conducive to the disassembly and replacement of the pipeline. The filling effect of the first sealing ring and the second sealing ring avoids the shaking caused by the size gap of the connecting frame, thereby improving the tightness of the connection. At the same time, the inserted block and the limit groove provided in combination can not only pre-position the connection between the pipeline bodies, but also improve the tightness of the fitting surface, and have good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0016] Figure 2 It is a schematic diagram of the connection between the mounting mechanism and the body;

[0017] Figure 3 Schematic diagram of the disassembly of some structures;

[0018] Figure 4 Schematic diagram of the structure of the installation mechanism.

[0019] Figure numerals: 1. Pipe body; 2. Connecting frame; 3. Convex ring; 4. First groove; 5. Second groove; 6. First sealing ring; 7. Second sealing ring; 8. Snap ring; 9. Positioning groove; 10. Circular groove; 11. Transition layer; 12. Protective layer; 13. Mounting plate; 14. Fixing bolt; 15. Nut; 16. Fixing plate; 17. Mounting hole; 18. Reinforcing rib plate; 19. Insert; 20. Limiting groove. DETAILED DESCRIPTION

[0020] Example 1

[0021] like Figures 1-4As shown, a wear-resistant dredging pipe proposed in this embodiment includes a pipe body 1 and a connecting mechanism; a clamping ring 8 is coaxially provided on the pipe body 1, and a convex ring 3 is provided on the end face of the pipe body 1.

[0022] The connecting mechanism includes two fittingly arranged connecting frames 2, a first sealing ring 6 and a second sealing ring 7 arranged between the connecting frame 2 and the pipe body 1, two mounting plates 13 symmetrically arranged on the connecting frame 2, two fixing bolts 14 passing through the mounting plates 13, nuts 15 threadedly connected to the fixing bolts 14 and abutting against the mounting plates 13, and a fixing plate 16 coaxially arranged on the connecting frame 2. A positioning groove 9 for embedding the clamping ring 8 is provided inside the connecting frame 2, and a plurality of mounting holes 17 are provided on the fixing plate 16. A first groove 4 is formed between the clamping ring 8 and the convex ring 3, and the first sealing ring 6 is located inside the first groove 4. A second groove 5 is formed between the clamping ring 8 and the connecting frame 2, and the second sealing ring 7 is located inside the second groove 5.

[0023] In this embodiment, when the connecting frame 2 needs to be installed, the first sealing ring 6 and the second sealing ring 7 are first clamped into the inside of the first groove 4 and the second groove 5, and then the two connecting frames 2 are placed on the outside of the pipe body 1 after aligning the clamping ring 8 through the positioning groove 9, and then the fixing bolts 14 are passed through the two mounting plates 13 and screwed into the nuts 15, thus completing the fixed installation of the connecting frame 2 and the pipe body 1, avoiding the disadvantage of fixing by welding in the traditional way, which is not conducive to the disassembly and replacement of the pipe, and when the two connecting frames 2 are tightened by the fixing bolts 14, the filling effect of the first sealing ring 6 and the second sealing ring 7 provided in combination avoids the shaking caused by the size gap of the connecting frame 2, improves the tightness during connection, and has good practicality.

[0024] When connecting two pipe bodies 1, first fit the two end faces of the two pipe bodies 1 together, and then fix the two fixing plates 16 together through the mounting holes 17 on the fixing plates 16 to complete the connection operation, which is simple and convenient.

[0025] Example 2

[0026] like Figure 1 and Figure 2 As shown, a dredging wear-resistant pipe proposed in this embodiment, compared with Example 1, in this embodiment, a transition layer 11 is provided on the outside of the pipe body 1, a protective layer 12 is provided on the outside of the transition layer 11, and a circular groove 10 is provided on the connecting frame 2. Both ends of the transition layer 11 and the protective layer 12 are located inside the circular groove 10 and abut against each other. The protective layer 12 can provide a certain degree of protection for the pipe body 1 to prevent the outer side from being easily crushed or worn during installation and transportation. The transition layer 11 is used to provide a supporting environment and protect the pipe body 1 at the same time.

[0027] Example 3

[0028] like Figure 2 and Figure 4 As shown, the present embodiment proposes a wear-resistant dredging pipe. Compared with the first embodiment, in the present embodiment, a plurality of reinforcing ribs 18 distributed in a circular array are provided on the fixing plate 16 and the connecting frame 2. The reinforcing ribs 18 are used to improve the connection strength and stability of the entire pipe. An insert 19 is provided on the connecting frame 2 at one end of the pipe body 1, and a limiting groove 20 is provided on the connecting frame 2 at the other end of the pipe body 1. The insert 19 can be embedded in the internal arrangement of the limiting groove 20. The shape of the two inserts 19 spliced ​​together is a cylinder, and the limiting groove 20 and the cylinder are adapted to each other. When the two pipe bodies 1 are docked, the insert 19 on one pipe body 1 can be aligned with the limiting groove 20 on the other pipe body 1 for plugging. This not only plays a pre-positioning role for the connection of the pipe bodies 1, but also improves the tightness of the connection.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A dredging wear-resistant pipe, characterized in that: include: A pipe body (1) is coaxially provided with a clamping ring (8), and an end surface of the pipe body (1) is provided with a convex ring (3); A connecting mechanism comprises two connecting frames (2) arranged in close contact with each other, a first sealing ring (6) and a second sealing ring (7) arranged between the connecting frame (2) and the pipe body (1), two mounting plates (13) symmetrically arranged on the connecting frame (2), two fixing bolts (14) passing through the mounting plates (13), nuts (15) threadedly connected to the fixing bolts (14) and abutting against the mounting plates (13), and a fixing plate (16) coaxially arranged on the connecting frame (2); a positioning groove (9) for a clamping ring (8) to be embedded is provided inside the connecting frame (2), and a plurality of mounting holes (17) are provided on the fixing plate (16).

2. The dredging wear-resistant pipe according to claim 1, characterized in that: A first groove (4) is formed between the snap ring (8) and the convex ring (3), and the first sealing ring (6) is located inside the first groove (4).

3. The dredging wear-resistant pipe according to claim 1, characterized in that: A second groove (5) is formed between the clamping ring (8) and the connecting frame (2), and the second sealing ring (7) is located inside the second groove (5).

4. The dredging wear-resistant pipe according to claim 1, characterized in that: A transition layer (11) is provided on the outside of the pipe body (1), a protective layer (12) is provided on the outside of the transition layer (11), a circular groove (10) is provided on the connecting frame (2), and both ends of the transition layer (11) and the protective layer (12) are located inside the circular groove (10) and abut against each other.

5. The dredging wear-resistant pipe according to claim 1, characterized in that: A plurality of reinforcing ribs (18) distributed in a circular array are provided on the fixing plate (16) and the connecting frame (2).

6. The dredging wear-resistant pipe according to claim 1, characterized in that: An insert block (19) is provided on the connecting frame (2) at one end of the pipe body (1), and a limiting groove (20) is provided on the connecting frame (2) at the other end of the pipe body (1). The insert block (19) can be embedded in the limiting groove (20).

7. The dredging wear-resistant pipe according to claim 6, characterized in that: The shape of the two plug-in blocks (19) is a cylinder, and the limiting groove (20) is adapted to the cylinder.

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