An auxiliary device for sinking a tunnel

Abstract

This utility model discloses an auxiliary device for the installation of immersed tunnel sections, relating to the field of immersed tunnel installation technology. The utility model includes symmetrically arranged mounting seats, with a connecting block fixedly connected between the two mounting seats. An installation groove is formed on the inner side of each mounting seat, and two tunnel sections are located inside the installation groove. A welding groove is provided between the two mounting seats. A symmetrically arranged tilting groove is formed on the inner side of the installation groove, and a rotating wheel is rotatably connected to the inner side of the tilting groove. A limiting mechanism is symmetrically arranged on the inner side of each mounting seat. A rotating motor drives an abutment block downwards to limit and clamp the tunnel sections, thereby effectively reducing the risk of tunnel section displacement.

Description

Technical Field

[0001] This utility model relates to the field of immersed tube sinking technology, and in particular to an auxiliary device for immersed tube sinking and installation. Background Technology

[0002] Immersed tunnel construction is an underwater construction technique mainly used for building tunnels and laying underwater pipelines. It is applicable to waters of various depths, including the deep sea, large rivers, and lakes, and has unique advantages in projects that cross wide waters.

[0003] The existing Chinese patent (authorization announcement number: CN217416048U) mentions a floating box for surface welding connection of immersed pipe, which can complete the welding connection of steel pipe sections floating on the water surface in the floating box. It can be operated directly on the river surface near the immersed pipe construction area, avoiding the need to use a lot of ship machinery and equipment to manufacture and transfer the pipeline. It has the characteristics of simple equipment, convenient operation and high work efficiency.

[0004] When connecting pipes, a crane is usually used to lift one side of the pipe and then transport it to the other side. Then, workers weld the two pipes together. Although this method is simple and easy, if there is external interference during the welding process, it may cause the pipe to swing and tilt, making it difficult to maintain a stable posture and thus making it difficult for workers to weld. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that if there is external interference, the pipeline may swing and tilt, making it difficult to maintain a stable posture. This utility model provides an auxiliary device for the sinking and installation of immersed tubes.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] An auxiliary device for submerged tube installation includes symmetrically arranged mounting seats, a connecting block fixedly connected between the two mounting seats, an installation groove on the inner side of the mounting seat, two tube sections on the inner side of the installation groove, a welding groove between the two mounting seats, a symmetrically arranged tilting groove on the inner side of the installation groove, a rotating wheel rotatably connected to the inner side of the tilting groove, a limit mechanism symmetrically arranged on the inner side of the mounting seat, and a support mechanism symmetrically arranged on the outer side of the mounting seat.

[0008] By adopting the above technical solution, two pipe sections are placed on both sides of the mounting base. The mounting groove on the inner side of the mounting base facilitates the placement of the pipe sections in a suitable position. Workers can weld the two pipe sections through the welding groove to complete the docking installation between the two pipe sections. The limiting mechanism can reduce the risk of displacement during the welding process, and the support mechanism can improve the stability of the mounting base.

[0009] Furthermore, the limiting mechanism includes two drive slots symmetrically opened on the inner side of the mounting base. A threaded rod is rotatably connected to the inner side of one drive slot. A rotary motor is fixedly connected to the top of the mounting base. The output shaft of the rotary motor passes through one drive slot and is fixedly connected to the threaded rod. A drive plate is threadedly connected to the outer side of the threaded rod. An abutment block is provided below the drive plate, and the abutment block abuts against the pipe section.

[0010] By adopting the above technical solution, the drive rotary motor drives the threaded rod to rotate and connects it to the drive plate through the threaded connection. This allows the drive plate to move outside the threaded rod, and the movement of the drive plate will cause the contact block to move downward to limit and clamp the pipe section, thereby effectively reducing the risk of pipe section displacement.

[0011] Furthermore, a metal plate is fixedly connected to the bottom of the contact block, and the bottom of the metal plate is set with a rough metal surface.

[0012] By adopting the above technical solution, the metal plate can increase the friction between the contact block and the pipe section.

[0013] Furthermore, a guide post is fixedly connected to the inner side of the drive slot on the other side, with one end of the guide post penetrating through the drive plate and the guide post slidably connected to the drive plate.

[0014] By adopting the above technical solution, the guide column provides additional support points for the moving plate, so that the drive plate can remain stable when moving.

[0015] Furthermore, a buffer frame is fixedly connected to the bottom of the drive plate. A slot is provided on the outer side of the buffer frame. A movable plate is slidably arranged on the inner side of the slot. The bottom of the movable plate is fixedly connected to the abutment block. Several springs are symmetrically fixedly connected to the top of the movable plate. The top of the springs is fixedly connected to the inner side of the buffer frame.

[0016] By adopting the above technical solution, the elastic potential energy of the spring can provide a certain buffer space while resisting the pipe section, reducing the damage to the pipe section caused by excessive clamping force.

[0017] Furthermore, a pulley is fixedly connected to the outer side of the output shaft of the rotary motor, a vertical rod is rotatably connected to the top of the mounting base, the bottom end of the vertical rod passes through the mounting base and is fixedly connected to the threaded rod, a pulley is fixedly connected to the outer side of the vertical rod, and a transmission belt is sleeved on the outer side of the pulley and the pulley.

[0018] By adopting the above technical solution, the two drive plates can move simultaneously, thereby improving construction efficiency.

[0019] Furthermore, the support mechanism includes two rotating seats that are symmetrically and fixedly connected to the outside of the mounting base. A telescopic cylinder is rotatably connected to the inner side of the rotating seats, and a telescopic rod is slidably connected to the inner side of the telescopic cylinder. A base plate is rotatably connected to the bottom end of the telescopic rod.

[0020] By adopting the above technical solution, the base plate moves downwards to contact the ground, thereby supporting the mounting base and improving its stability.

[0021] Furthermore, the bottom of the base plate is fixedly connected with several friction blocks at equal intervals, and the bottom end of the friction blocks is set to be conical.

[0022] By adopting the above technical solution, the friction with the ground is increased, further enhancing the stability of the support.

[0023] In summary, this utility model has at least one of the following beneficial effects;

[0024] 1. In this utility model, when limiting the pipe section, the rotating motor is first driven to move the contact block downward to limit and clamp the pipe section, thereby effectively reducing the risk of pipe section displacement, providing a stable foundation for subsequent welding and other construction operations, and reducing the risk of weak welding due to pipe section instability.

[0025] 2. In this utility model, when welding pipe sections, the bottom plate of the telescopic cylinder is first moved downwards to contact the ground by rotating, thereby supporting the mounting base. The stable mounting base can reduce the shaking and displacement of the pipe section during the welding process, reduce the risk of welding accidents caused by the instability of the pipe section, ensure that the welding work is carried out in a stable environment, and improve the welding quality and precision. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the first three-dimensional structure of the mounting base in this utility model;

[0027] Figure 2 This is a schematic diagram of the second three-dimensional structure of the mounting base in this utility model;

[0028] Figure 3 This is a three-dimensional structural diagram of the limiting mechanism in this utility model;

[0029] Figure 4 This is a schematic diagram of the cross-sectional structure of the buffer frame in this utility model;

[0030] Figure 5 This is a three-dimensional structural diagram of the support mechanism in this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Mounting base; 2. Mounting groove; 3. Pipe section; 4. Welding groove; 5. Drive groove; 6. Rotary motor; 7. Threaded rod; 8. Drive plate; 9. Contact block; 10. Transmission belt; 11. Guide column; 12. Metal plate; 13. Buffer frame; 14. Empty groove; 15. Moving plate; 16. Spring; 17. Rotating seat; 18. Telescopic cylinder; 19. Telescopic rod; 20. Base plate; 21. Friction block; 22. Rotating wheel; 23. Connecting block. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0034] This utility model discloses an auxiliary device for the sinking and installation of immersed tubes.

[0035] Reference Figure 1 and Figure 2 An auxiliary device for sinking and installing a tunnel lining tube includes symmetrically arranged mounting bases 1, a connecting block 23 fixedly connected between the two mounting bases 1, an installation groove 2 opened on the inner side of the mounting base 1, two pipe sections 3 arranged on the inner side of the installation groove 2, a welding groove 4 arranged between the two mounting bases 1, a symmetrically arranged flipping groove opened on the inner side of the installation groove 2, a rotating wheel 22 rotatably connected to the inner side of the flipping groove, a limit mechanism symmetrically arranged on the inner side of the mounting base 1, and a support mechanism symmetrically arranged on the outer side of the mounting base 1.

[0036] During the pipe laying process, two pipe sections 3 are first placed on both sides of the mounting base 1. The mounting groove 2 on the inner side of the mounting base 1 facilitates the placement of the pipe sections 3 in a suitable position. Workers can then weld the two pipe sections 3 through the welding groove 4. When welding the bottom, the pipe section 3 moves on the rotating wheel 22 set on the inner side of the mounting groove 2, which facilitates welding of the pipe sections 3 in different places, thereby completing the docking installation between the two pipe sections 3. The limiting mechanism can limit the pipe sections 3 on both sides to reduce the risk of displacement during the welding process. The support mechanism can improve the stability of the mounting base 1.

[0037] Reference Figure 1 , Figure 3 and Figure 4 The limiting mechanism includes two drive slots 5 symmetrically opened inside the mounting base 1. A threaded rod 7 is rotatably connected to the inner side of one drive slot 5. A rotary motor 6 is fixedly connected to the top of the mounting base 1. The output shaft of the rotary motor 6 passes through one drive slot 5 and is fixedly connected to the threaded rod 7. A drive plate 8 is threadedly connected to the outer side of the threaded rod 7. An abutting block 9 is provided below the drive plate 8 and abuts against the pipe section 3.

[0038] The bottom of the contact block 9 is fixedly connected to the metal plate 12, and the bottom of the metal plate 12 is set with a rough metal surface.

[0039] In addition, a guide post 11 is fixedly connected to the inner side of the drive groove 5 on the other side. One end of the guide post 11 passes through the drive plate 8, and the guide post 11 is slidably connected to the drive plate 8.

[0040] Furthermore, a buffer frame 13 is fixedly connected to the bottom of the drive plate 8. A slot 14 is provided on the outer side of the buffer frame 13. A movable plate 15 is slidably arranged on the inner side of the slot 14. The bottom of the movable plate 15 is fixedly connected to the abutment block 9. Several springs 16 are symmetrically fixedly connected to the top of the movable plate 15. The top of the springs 16 is fixedly connected to the inner side of the buffer frame 13.

[0041] In addition, a pulley is fixedly connected to the outer side of the output shaft of the rotary motor 6, a vertical rod is rotatably connected to the top of the mounting base 1, the bottom end of the vertical rod passes through the mounting base 1 and is fixedly connected to the threaded rod 7, a pulley is fixedly connected to the outer side of the vertical rod, and a transmission belt 10 is sleeved on the outer side of the pulley and the pulley.

[0042] When limiting the pipe section 3, the drive motor 6 first drives the threaded rod 7 to rotate and connects it to the drive plate 8 through the threaded rod 7. This causes the drive plate 8 to move outside the threaded rod 7. The movement of the drive plate 8 will cause the contact block 9 to move downward to limit and clamp the pipe section 3, thereby effectively reducing the risk of pipe section 3 deviating.

[0043] When the contact block 9 clamps the pipe section 3, the metal plate 12 can increase the friction between the contact block 9 and the pipe section 3, further improving the effect of fixing the pipe section 3.

[0044] When the drive plate 8 moves, the guide post 11 provides additional support points for the moving plate 15, so that the drive plate 8 can remain stable when it moves.

[0045] When the contact block 9 contacts the pipe section 3, the contact block 9 receives a reaction force and applies pressure to the moving plate 15, causing the moving plate 15 to move inside the buffer frame 13. The movement of the buffer frame 13 will compress the spring 16, causing the spring 16 to compress and generate elastic potential energy. The elastic potential energy of the spring 16 can provide a certain buffer space while contacting the pipe section 3, reducing the damage to the pipe section 3 caused by excessive clamping force.

[0046] When the rotary motor 6 rotates, it drives pulley 1 to rotate, which in turn drives the transmission belt 10 to rotate. The transmission belt 10 then drives pulley 2 to rotate, which in turn causes the threaded rods 7 on both sides to rotate simultaneously, thereby causing the drive plates 8 on both sides to move simultaneously, thus improving construction efficiency.

[0047] Refer to Figure 1 , Figure 2 and Figure 5The support mechanism includes two rotating seats 17 that are symmetrically and fixedly connected to the outside of the mounting base 1. A telescopic cylinder 18 is rotatably connected to the inside of the rotating seat 17. A telescopic rod 19 is slidably connected to the inside of the telescopic cylinder 18. A base plate 20 is rotatably connected to the bottom end of the telescopic rod 19.

[0048] Among them, a number of friction blocks 21 are fixedly connected at equal intervals at the bottom of the base plate 20, and the bottom end of the friction block 21 is set as a cone.

[0049] When welding pipe section 3, the telescopic cylinder 18 is first rotated, causing it to rotate inside the rotating seat 17. As the telescopic cylinder 18 rotates, it drives the telescopic rod 19 to rotate. After rotating to a suitable angle, the telescopic rod 19 is then pulled to slide inside the telescopic cylinder 18, causing the base plate 20 to move downwards and contact the ground, thereby supporting the mounting seat 1. The stable mounting seat 1 can reduce the shaking and displacement of pipe section 3 during the welding process.

[0050] When the base plate 20 contacts the ground, the bottom of the friction block 21 is set to be conical, which increases the friction with the ground and further enhances the stability of the support.

[0051] Working principle: Two pipe sections 3 are placed on both sides of the mounting base 1. The mounting groove 2 on the inner side of the mounting base 1 facilitates the placement of the pipe sections 3 in a suitable position. The workers can weld the two pipe sections 3 through the welding groove 4 to complete the docking installation between the two pipe sections 3. The drive motor 6 drives the threaded rod 7 to rotate and connects to the drive plate 8 through the threaded rod 7. This causes the drive plate 8 to move outside the threaded rod 7. The movement of the drive plate 8 will drive the abutment block 9 to move downward to limit and clamp the pipe section 3, thereby effectively reducing the risk of pipe section 3 displacement.

[0052] By rotating the telescopic cylinder 18, the telescopic cylinder 18 rotates inside the rotating seat 17. At the same time, when the telescopic cylinder 18 rotates, it will drive the telescopic rod 19 to rotate. After rotating to a suitable angle, the telescopic rod 19 is then pulled to slide inside the telescopic cylinder 18, causing the base plate 20 to move downward and contact the ground, thereby supporting the mounting seat 1 and improving the stability of the mounting seat 1.

Claims

1. An auxiliary device for sinking a tunnel, comprising a symmetrical mounting seat (1), characterized in that: A connecting block (23) is fixedly connected between the two mounting seats (1). A mounting groove (2) is provided on the inner side of the mounting seat (1). Two pipe sections (3) are provided on the inner side of the mounting groove (2). A welding groove (4) is provided between the two mounting seats (1). A flip groove is symmetrically provided on the inner side of the mounting groove (2). A rotating wheel (22) is rotatably connected to the inner side of the flip groove. A limit mechanism is symmetrically provided on the inner side of the mounting seat (1). A support mechanism is symmetrically provided on the outer side of the mounting seat (1).

2. An auxiliary device for sinking a tunnel, according to claim 1, characterized in that: The limiting mechanism includes two drive slots (5) symmetrically opened on the inner side of the mounting base (1). A threaded rod (7) is rotatably connected to the inner side of one drive slot (5). A rotary motor (6) is fixedly connected to the top of the mounting base (1). The output shaft of the rotary motor (6) passes through one drive slot (5) and is fixedly connected to the threaded rod (7). A drive plate (8) is threadedly connected to the outer side of the threaded rod (7). An abutment block (9) is provided below the drive plate (8). The abutment block (9) abuts against the pipe section (3).

3. An installation aid for sinking a tunnel according to claim 2, characterized in that: The bottom of the contact block (9) is fixedly connected to a metal plate (12), and the bottom of the metal plate (12) is set as a rough metal surface.

4. An auxiliary device for sinking a tunnel according to claim 2, characterized in that: A guide post (11) is fixedly connected to the inner side of the drive groove (5) on the other side. One end of the guide post (11) passes through the drive plate (8), and the guide post (11) is slidably connected to the drive plate (8).

5. An auxiliary device for sinking a tunnel according to claim 2, characterized in that: A buffer frame (13) is fixedly connected to the bottom of the drive plate (8). A slot (14) is provided on the outer side of the buffer frame (13). A movable plate (15) is slidably arranged on the inner side of the slot (14). The bottom of the movable plate (15) is fixedly connected to the abutment block (9). Several springs (16) are symmetrically fixedly connected to the top of the movable plate (15). The top of the springs (16) is fixedly connected to the inner side of the buffer frame (13).

6. An auxiliary device for sinking a tunnel according to claim 2, characterized in that: A pulley is fixedly connected to the outer side of the output shaft of the rotary motor (6). A vertical rod is rotatably connected to the top of the mounting base (1). The bottom end of the vertical rod passes through the mounting base (1) and is fixedly connected to the threaded rod (7). A pulley is fixedly connected to the outer side of the vertical rod. A transmission belt (10) is sleeved on the outer side of the pulley and the pulley.

7. An auxiliary device for sinking a tunnel according to claim 1, characterized in that: The support mechanism includes two rotating seats (17) that are symmetrically fixedly connected to the outside of the mounting base (1). A telescopic cylinder (18) is rotatably connected to the inside of the rotating seat (17). A telescopic rod (19) is slidably connected to the inside of the telescopic cylinder (18). A base plate (20) is rotatably connected to the bottom end of the telescopic rod (19).

8. An installation aid for sinking a tunnel according to claim 7, characterized in that: The bottom of the base plate (20) is fixedly connected with a number of friction blocks (21) at equal intervals, and the bottom end of the friction blocks (21) is set as a cone.

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