Underwater pipe jacking safety protection mechanism

Abstract

The utility model discloses an underwater pipe jacking safety protection mechanism which comprises a pipe jacking body, an inserting ring is fixedly connected to the side face of the pipe body, an annular groove is formed in the inner wall of the pipe body, a clamping ring is movably connected to the inner wall of the annular groove, a connecting ring is fixedly connected to the inner ring face of the clamping ring, and a fixing ring is fixedly connected to the inner wall of the connecting ring. The side face of the fixing ring is movably connected with a locking bolt. The circular groove capable of allowing the clamping ring to transversely move is formed in the inner wall of the large-diameter pipe body, the clamping ring can conveniently drive the connecting ring to move, assemble and disassemble, the fixing bolt is arranged, the semicircular clamping ring, the connecting ring and the fixing ring are conveniently fixed, meanwhile, the locking bolt is arranged on the side face of the fixing ring, and therefore the clamping ring can be conveniently assembled and disassembled. And the two pipe bodies can be conveniently fixed through the locking bolts, the situation that the adjacent pipe bodies are separated by external impulsive force is prevented, and then the clamping rings, the connecting rings and the fixing rings have the effect of safety protection between the pipe bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of river engineering, in particular to an underwater pipe jacking safety protection mechanism. Background Art

[0002] Pipe jacking is a non-excavation, deep-dive pipe laying technique. Its advantages include minimal or no impact on the surrounding environment, a small construction site, and low noise levels. Furthermore, it can operate deep underground, an advantage that excavation-based pipe laying cannot match.

[0003] Specifically, pipes with diameters less than 500 mm are suitable for hand-pushing or manual pushing, as these pipes are relatively small and easy to operate and control. Pipes with diameters greater than 500 mm are better suited to mechanical pushing and pneumatic jacking to improve construction efficiency and accuracy. The diameter of a jacking pipe generally ranges from 75 mm to 4000 mm, and existing jacking methods generally use jacks. Pipes that require mechanical pushing are generally accessible, making it easier for personnel to enter and inspect the interior of the pipe.

[0004] Since the large-diameter jacking pipes are clamped together, the connections of the jacking pipes are easily broken open during the advancement process, especially when entering underwater, which increases the safety hazard of pipe construction. Therefore, in order to prevent the jacking pipes from being broken open during underwater operations, we have designed an underwater jacking safety protection mechanism to enhance the safety of underwater jacking operations. Utility Model Content

[0005] The purpose of the utility model is to provide an underwater pipe jacking safety protection mechanism to solve the problem of pipeline construction with an inner diameter of 1,000 mm to 5,000 mm proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an underwater jacking pipe safety protection mechanism, comprising a jacking pipe body, a plug ring fixedly connected to the side of the pipe body, an annular groove is provided on the inner wall of the pipe body, and a clamping ring is movably connected to the inner wall of the annular groove, the inner ring surface of the clamping ring is fixedly connected to a connecting ring, the inner wall of the connecting ring is fixedly connected to a fixing ring, the side of the fixing ring is movably connected to a locking bolt, and one end of the locking bolt is threadedly connected to a locking nut, a bearing is provided on the side of the fixing ring, and a connecting plate is provided on the side of the bearing, and the side of the connecting plate is threadedly connected to the fixing bolt.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Preferably, a groove adapted to the insert ring is provided on the other side of the tube body away from the insert ring, and the insert ring has the same inner diameter as the tube body. By arranging the insert ring on the side of the tube body, it is convenient to connect multiple tube bodies through the insert ring, thereby increasing the connectivity between the tube bodies.

[0009] Preferably, the clamping ring, connecting ring and fixing ring are divided into half into semicircular rings, and the midpoints of the clamping ring, connecting ring and fixing ring are on the same horizontal plane as the central axis of the tube body. By dividing the clamping ring, connecting ring and fixing ring into two halves, it is convenient to install and disassemble them later, and the efficiency of installing the clamping ring, connecting ring and fixing ring in the tube body is increased.

[0010] Preferably, the outer ring surface of the connecting ring is movably connected to the inner ring surface of the tube body, and one side of the connecting ring is in the same vertical plane as the side surface of the fixing ring. By setting the connecting ring and the fixing ring, the connecting ring and the fixing ring can be easily moved inside the tube body. At the same time, the connecting ring connected to the inner wall of the tube body also increases the stability of the connection between the connecting ring and the tube body.

[0011] Preferably, the two clamping rings, connecting ring and fixing ring are connected by connecting plates and fixing bolts, and the number of connecting plates and fixing bolts is two. By setting the connecting plates and fixing bolts, it is convenient to fix the assembled clamping rings, connecting rings and fixing rings.

[0012] Preferably, six locking bolts are arranged at equal distances on the side circumference of the fixing ring, and screw holes that are compatible with the end faces of the locking bolts are opened on the side of the fixing ring. By arranging the locking bolts and locking nuts, it is convenient to fix the clamping ring, connecting ring and fixing ring between the two tube bodies through the locking bolts and nuts, thereby increasing the connectivity between the two tube bodies and preventing the tube bodies from being separated by external pressure.

[0013] Preferably, a bearing is embedded in the side of the fixing ring, and the outer ring of the bearing is fixedly connected to the fixing ring, the outer ring of the bearing is fixedly connected to the upper surface of the connecting plate, and the side of the connecting plate is movably connected to the side of the fixing ring. By arranging the bearing and the connecting plate on the side of the fixing ring, the connecting plate can be rotated through the bearing.

[0014] Beneficial effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] The utility model increases the stability between the two adjacent tube bodies by arranging movable clamping rings, connecting rings and fixing rings at the connection of the two tube bodies. At the same time, a circular groove that can accommodate the lateral movement of the clamping ring is arranged on the inner wall of the tube body with a large diameter, so that the clamping ring drives the connecting ring to be moved for assembly and disassembly. The semi-annular clamping ring, connecting ring and fixing ring are fixed by arranging fixing bolts. At the same time, locking bolts are arranged on the side of the fixing ring, so that the two tube bodies are fixed by the locking bolts, preventing the adjacent tube bodies from being separated by external impact, thereby making the clamping ring, connecting ring and fixing ring have the effect of providing safety protection between the tube bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front cross-section structure of the utility model;

[0018] Figure 2 This is a side structural diagram of the fixing ring of the utility model;

[0019] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] In the figure: 1. Tube body; 2. Insert ring; 3. Annular groove; 4. Snap ring; 5. Connecting ring; 6. Fixing ring; 7. Locking bolt; 8. Locking nut; 9. Bearing; 10. Connecting plate; 11. Fixing bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-3 The utility model provides a technical solution: an underwater jacking pipe safety protection mechanism, comprising a jacking pipe body 1, a plug ring 2 is fixedly connected to the side of the pipe body 1, a groove adapted to the plug ring 2 is opened on the other side of the pipe body 1 away from the plug ring 2, and the plug ring 2 has the same inner diameter as the pipe body 1. By arranging the plug ring 2 on the side of the pipe body 1, it is convenient to connect multiple pipe bodies 1 through the plug ring 2, thereby increasing the connectivity between the pipe bodies 1.

[0023] An annular groove 3 is provided on the inner wall of the tube body 1, and a clamping ring 4 is movably connected to the inner wall of the annular groove 3. A connecting ring 5 is fixedly connected to the inner ring surface of the clamping ring 4, and a fixing ring 6 is fixedly connected to the inner wall of the connecting ring 5. The clamping ring 4, the connecting ring 5 and the fixing ring 6 are all divided into semicircular rings in half, and the midpoints of the clamping ring 4, the connecting ring 5 and the fixing ring 6 are in the same horizontal plane with the central axis of the tube body 1. By dividing the clamping ring 4, the connecting ring 5 and the fixing ring 6 into two halves, it is convenient for subsequent installation and disassembly, and the efficiency of installing the clamping ring 4, the connecting ring 5 and the fixing ring 6 in the tube body 1 is increased.

[0024] Furthermore, the outer ring surface of the connecting ring 5 is movably connected to the inner ring surface of the tube body 1, and one side of the connecting ring 5 is in the same vertical plane as the side surface of the fixing ring 6. By arranging the connecting ring 5 and the fixing ring 6, it is convenient for the connecting ring 5 and the fixing ring 6 to move inside the tube body 1. At the same time, the connecting ring 5 connected to the inner wall of the tube body 1 also increases the stability of the connection between the connecting ring 5 and the tube body 1.

[0025] The side of the fixing ring 6 is movably connected with a locking bolt 7, and one end of the locking bolt 7 is threadedly connected with a locking nut 8. Six locking bolts 7 are arranged at equal intervals on the circumference of the side of the fixing ring 6, and the side of the fixing ring 6 is provided with screw holes adapted to the end faces of the locking bolts 7. By arranging the locking bolts 7 and the locking nuts 8, it is convenient to fix the clamping ring 4, the connecting ring 5 and the fixing ring 6 between the two pipe bodies 1 through the locking bolts 7 and the nuts, thereby increasing the connectivity between the two pipe bodies 1 and preventing the pipe bodies 1 from being separated by external pressure.

[0026] A bearing 9 is provided on the side of the fixing ring 6, and a connecting plate 10 is provided on the side of the bearing 9. The side of the fixing ring 6 is embedded with a bearing 9, and the outer ring of the bearing 9 is fixedly connected to the fixing ring 6. The outer ring of the bearing 9 is fixedly connected to the upper surface of the connecting plate 10. The side of the connecting plate 10 is movably connected to the side of the fixing ring 6. By arranging the bearing 9 and the connecting plate 10 on the side of the fixing ring 6, the connecting plate 10 can be rotated through the bearing 9.

[0027] The side of the connecting plate 10 is threadedly connected with a fixing bolt 11, and the two clamping rings 4, the connecting ring 5 and the fixing ring 6 are connected through the connecting plate 10 and the fixing bolt 11, and the number of the connecting plate 10 and the fixing bolt 11 are both two. By setting the connecting plate 10 and the fixing bolt 11, it is convenient to fix the assembled clamping ring 4, the connecting ring 5 and the fixing ring 6.

[0028] In this embodiment, a movable clamping ring 4, a connecting ring 5 and a fixing ring 6 are provided at the connection between the two tube bodies 1 to increase the stability between the two adjacent tube bodies 1. At the same time, a circular groove that can accommodate the lateral movement of the clamping ring 4 is provided on the inner wall of the large-diameter tube body 1, so that the clamping ring 4 can drive the connecting ring 5 to move, assemble and disassemble. By providing a fixing bolt 11, the semi-annular clamping ring 4, the connecting ring 5 and the fixing ring 6 can be fixed. At the same time, by providing a locking bolt 7 on the side of the fixing ring 6, the two tube bodies 1 can be fixed by the locking bolt 7 to prevent the adjacent tube bodies 1 from being separated by external impact, so that the clamping ring 4, the connecting ring 5 and the fixing ring 6 have the effect of providing safety protection between the tube bodies 1.

[0029] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underwater pipe jacking safety protection mechanism, characterized by: The invention comprises a top tube body (1), wherein the side of the tube body (1) is fixedly connected to an insert ring (2), the inner wall of the tube body (1) is provided with an annular groove (3), and the inner wall of the annular groove (3) is movably connected to a clamping ring (4), the inner ring surface of the clamping ring (4) is fixedly connected to a connecting ring (5), the inner wall of the connecting ring (5) is fixedly connected to a fixing ring (6), the side of the fixing ring (6) is movably connected to a locking bolt (7), and one end of the locking bolt (7) is threadedly connected to a locking nut (8), a bearing (9) is provided on the side of the fixing ring (6), and a connecting plate (10) is provided on the side of the bearing (9), and the side of the connecting plate (10) is threadedly connected to a fixing bolt (11).

2. The underwater pipe jacking safety protection mechanism according to claim 1, characterized in that: A groove adapted to the insert ring (2) is provided on the other side of the tube body (1) away from the insert ring (2), and the insert ring (2) and the tube body (1) have the same inner diameter.

3. The underwater pipe jacking safety protection mechanism according to claim 1, characterized in that: The clamping ring (4), connecting ring (5) and fixing ring (6) are all divided into half semicircular rings, and the midpoints of the clamping ring (4), connecting ring (5) and fixing ring (6) are in the same horizontal plane as the central axis of the tube body (1).

4. The underwater pipe jacking safety protection mechanism according to claim 1, characterized in that: The outer ring surface of the connecting ring (5) is movably connected to the inner ring surface of the tube body (1), and one side of the connecting ring (5) and the side surface of the fixing ring (6) are in the same vertical plane.

5. The underwater pipe jacking safety protection mechanism according to claim 1 or 3, characterized in that: The two clamping rings (4), the connecting ring (5) and the fixing ring (6) are connected via a connecting plate (10) and fixing bolts (11), and the number of the connecting plate (10) and the number of the fixing bolts (11) are both two.

6. The underwater pipe jacking safety protection mechanism according to claim 1, characterized in that: Six locking bolts (7) are arranged at equal distances on the side circumference of the fixing ring (6), and screw holes that match the end faces of the locking bolts (7) are opened on the side of the fixing ring (6).

7. The underwater pipe jacking safety protection mechanism according to claim 1, characterized in that: A bearing (9) is embedded in the side of the fixing ring (6), and the outer ring of the bearing (9) is fixedly connected to the fixing ring (6), the outer ring of the bearing (9) is fixedly connected to the upper surface of the connecting plate (10), and the side of the connecting plate (10) is movably connected to the side of the fixing ring (6).

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