A pontoon bridge with multi-section buffer connection

Abstract

The present invention discloses a pontoon bridge with multi-stage buffer connection, which includes a number of pontoon bridge modules connected in sequence, and telescopic connectors connected between the pontoon bridge modules. The telescopic connector includes a fixed docking part, a slideway, and a first connecting block hinged to the fixed docking part and moving along the slideway. One end of a buffer spring is connected to the first connecting block, and the other end passes through a blocking ring and is connected to a connecting column. The other end of the connecting column is fixedly connected to the slideway through a return spring. The blocking ring is made of a flexible material, and the connecting column is provided with a first contact ring that restricts movement. The first contact ring squeezes the blocking ring and passes through it, and then is buffered by the return spring. The first buffer of the tension between the pontoon bridge modules is carried out through a telescopic rod and a buffer spring. After the first contact ring passes over the blocking ring, the second buffer is carried out through the return spring. The buffer connection provides a telescopic space for a single pontoon bridge module when the water level drops, avoiding the pontoon bridges pulling on each other, resulting in damage to the connection part and breakage of the pontoon bridge, which poses a danger to the pedestrians on it.

Description

Technical Field

[0001] The present invention relates to a floating bridge, and more particularly to a floating bridge with multi-stage buffer connection. Background Art

[0002] The natural geographical conditions near islands and reefs are very complex. Most of the seabed geology is muddy, the underwater terrain is relatively flat, the draft is shallow, and the water depth changes violently. It is difficult for ships to barge near the shore. If a floating bridge system is used to construct various unloading and landing tools such as floating docks, floating trestles, barge pontoons, and elevated trestles, the adverse conditions that the transport ship cannot berth or beach unload can be overcome.

[0003] In previous studies on multi-floating bridge modules, there were multi-floating bridge modules connected by flexible connectors, which enabled folding and pre-connection between the floating bridge modules. However, in this technology, although the floating bridge modules are connected by flexible connectors, which is convenient for folding transportation, it ignores that the water level drops due to sea tides, the buoyancy received by the floating bridge becomes smaller, and the gravity it receives becomes larger. Each floating bridge module pulls on each other due to gravity, which may cause the floating bridge modules to break and wear, and the distance between the floating bridges will change, resulting in gaps between the floating bridge modules, which is not conducive to transportation. Summary of the Invention

[0004] Object of the Invention: Aiming at the above shortcomings, the present invention provides a floating bridge in which the tension between each floating bridge module can be buffered in multiple stages.

[0005] Technical solution: To solve the above problems, the present invention adopts a pontoon bridge with multi-stage buffer connection, including a number of sequentially connected pontoon bridge modules and telescopic connectors for connecting between the pontoon bridge modules. The telescopic connectors include fixed docking parts and movable docking parts respectively arranged at both ends of the pontoon bridge modules. The fixed docking parts are used for hinged connection with the movable docking parts of another pontoon bridge module. The movable docking part includes a slideway arranged in the pontoon bridge module, a first connection block moving along the slideway, a first buffer group connected to the first connection block, and a second buffer group connected to the first buffer group. The first connection block is hinged to the fixed docking part. The extending direction of the slideway is parallel to the extending direction of the pontoon bridge. The first buffer group includes a telescopic rod connected to the first connection block and a buffer spring sleeved outside the telescopic rod. The second buffer group includes an obstructive ring fixedly arranged in the slideway, a connecting column, and a return spring. One end of the connecting column is fixedly connected to the telescopic rod and the buffer spring, and the other end of the connecting column is fixedly connected to the slideway through the return spring. The telescopic rod and the buffer spring pass through the obstructive ring and are connected to the connecting column. The obstructive ring is made of flexible material. A first contact ring is fixedly arranged at one end of the connecting column close to the obstructive ring. The first connection block moves for the first-stage buffer movement through the telescopic rod and the buffer spring. The movement of the telescopic rod drives the movement of the connecting column. The first contact ring at one end of the connecting column abuts against the obstructive ring to limit the movement of the first connection block. When the pulling force of the first connection block increases, the obstructive ring is deformed by the extrusion of the first contact ring, and the first contact ring passes through the obstructive ring. The return spring is used for the second-stage buffer of the movement of the first connection block and provides a pulling force for the first contact ring to pass through the obstructive ring and reset.

[0006] Furthermore, it also includes an extension plate and a driving link group for driving the movement of the extension plate. A receiving cavity for receiving the extension plate is arranged in the pontoon bridge module. An extension plate outlet is arranged at one end of the pontoon bridge module close to the fixed docking part. The extension plate outlet is used for the extension plate to extend out of the pontoon bridge module. The connecting column is connected to the extension plate through the driving link group. When the first connection block moves out of the pontoon bridge module, the driving link group drives the extension plate to extend out of the pontoon bridge module.

[0007] Furthermore, a closed circular plate is fixedly arranged at the end of the slideway. A circular hole is opened on the closed circular plate. A plug rod is connected to one end of the connecting column close to the end of the slideway. The plug rod extends outward through the circular hole of the closed circular plate from the connecting column, and a limiting circular plate is arranged outside the closed circular plate on the plug rod. The diameter of the limiting circular plate is larger than the diameter of the circular hole of the closed circular plate. The limiting circular plate is used to limit the moving distance of the first connection block.

[0008] Further, the driving link group includes a curved rod fixedly connected to the end of the inserting rod, a first guide rod, and two sliders moving along the first guide rod. The end of the curved rod is hinged to the two sliders through two connecting rods respectively, and the two sliders are hinged to the same position of the extension plate through two connecting rods. When the first connecting block moves outward from the floating bridge module, the inserting rod drives the curved rod to move, and the curved rod drives the two sliders to approach each other through the connecting rods, so as to push the extension plate to move outward to the other end of the floating bridge module through the connecting rods.

[0009] Further, the floating bridge module includes two symmetrically arranged telescopic connectors, and the extension plate is connected to the two telescopic connectors through two driving link groups.

[0010] Further, both ends of the first guide rod are fixedly connected with two second guide rods, the extending direction of the second guide rod is perpendicular to the extending direction of the first guide rod, and the extension plate is sleeved on the two second guide rods and moves along the second guide rods.

[0011] Further, at the other end of the connecting column away from the first contact end, a second contact ring with the same size as the first contact ring is provided.

[0012] Further, anti-slip convex lines are arranged on the top surface of the floating bridge module, and a rubber layer is laid on the top surface of the extension plate. The blocking ring is made of rubber.

[0013] Further, a floating box is fixedly connected to the bottom of the floating bridge module, and support frames are slidably connected to both the left and right sides of the floating box.

[0014] Beneficial effects: Compared with the prior art, the remarkable advantage of the present invention is that the first buffer for the tension between the floating bridge modules is carried out through the telescopic rod and the buffer spring, and the second buffer is carried out through the reset spring after the first contact ring crosses the blocking ring. When the water level drops, the buffer connection gives the single floating bridge module telescopic space to avoid the floating bridges pulling each other, resulting in damage to the connection part and fracture of the floating bridge, which poses a danger to the pedestrians on it. The cooperation between the inserting rod and the closed circular plate prevents the reset spring from being overstretched and deformed.

[0015] When the water level drops greatly, a gap is generated between two adjacent single floating bridge modules. The extension plate extends out from the notch of the floating bridge module, and the extension plate extends into the interior of the docking frame, strengthening the stability between two adjacent single floating bridge modules. The extension plate fills the gap between two adjacent single floating bridge modules, avoiding the generation of gaps between single floating bridge modules, reducing the potential safety hazards for passers-by walking on the bridge, and facilitating material transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure shows the overall structural schematic diagram of the floating bridge of the present invention;

[0017] Figure 2 The figure shows the connection relationship schematic diagram between two floating bridge modules in the present invention;

[0018] Figure 3 The figure shows a schematic diagram of the extended state of the extension plate between two modules;

[0019] Figure 4 The figure shows a schematic diagram of the structure of the docking frame provided at the end of the pontoon module of the present invention;

[0020] Figure 5 The figure shows a schematic diagram of the internal structure of the pontoon module in the present invention;

[0021] Figure 6 The figure shows a schematic diagram of the structure of the telescopic connecting piece in the present invention;

[0022] Figure 7 The figure shows Figure 6 an enlarged schematic diagram of the blocking ring structure of part A in;

[0023] Figure 8 The figure shows Figure 5 an enlarged schematic diagram of the structure of part B in;

[0024] Figure 9 The figure shows a schematic diagram of the structure of the extension plate in the present invention. Detailed implementation manners

[0025] As Figure 1 and Figure 2 shown, a pontoon bridge with multi-stage buffer connection in this embodiment includes a plurality of pontoon modules 1 connected in sequence, a telescopic connecting piece and a filling component for connecting between the pontoon modules. Anti-slip convex patterns 2 are provided on the top surface of the pontoon module 1. A floating box 3 is fixedly installed at the bottom of the pontoon module 1. Support frames 4 are slidably connected to both the left and right sides of the floating box 3. As Figure 3 shown, an extension plate outlet is provided at one end of the pontoon module 1 close to the fixed docking part. The extension plate outlet is used for the extension plate 23 to extend out of the pontoon module 1. When the first connecting block 6 moves out of the pontoon module 1, the driving link group drives the extension plate 23 to extend out of the pontoon module 1. As Figure 4 shown, docking frames 5 are connected to both ends of the pontoon module 1. When there is no mutual pulling between the pontoon modules, the first connecting block 6 and the docking hole 7 are completely surrounded by the docking frame 5. As Figure 5 shown, the telescopic connecting piece is arranged inside the pontoon module 1 and is located in the front half part thereof, and the filling component is arranged inside the pontoon module 1 and is located behind the telescopic connecting piece. The telescopic connecting piece connects between the pontoon modules, buffers the height difference generated by a single pontoon module according to the rising and falling tides, and the filling component fills the gap between two single-module hinged pontoons to prevent water from covering the pontoon bridge.

[0026] As Figure 6As shown in the figure, the telescopic connecting piece includes a fixed docking part and a movable docking part respectively arranged at both ends of the floating bridge module 1. The fixed docking part includes a second connecting block 25 fixedly installed at the rear end of the floating bridge module 1. The movable docking part includes a slideway 8 arranged in the floating bridge module 1, a first connecting block 6 moving along the slideway, a first buffer group connected to the first connecting block 6, and a second buffer group connected to the first buffer group. The inner wall of the slideway 8 is slidably connected to the first connecting block 6. The extending direction of the slideway is parallel to the extending direction of the floating bridge. The first buffer group includes a telescopic rod 10 connected to the first connecting block 6 and a buffer spring 11 sleeved outside the telescopic rod. One end of the telescopic rod 10 is fixedly connected with a first contact ring 12, and the other end of the telescopic rod 10 is fixedly connected to the first connecting block 6.

[0027] The second buffer group includes a blocking ring 9 fixedly arranged in the slideway 8, a connecting column 13, and a return spring 16. The blocking ring 9 is made of rubber. The telescopic rod 10 and the buffer spring 11 pass through the blocking ring 9 and are connected to the first contact ring 12. A connecting column 13 is fixedly installed on the side of the first contact ring 12 away from the telescopic rod 10. A second connecting ring 14 is fixedly installed on the side of the connecting column 13 away from the first contact ring 12. A plug rod 15 is fixedly installed at the center of the other side of the second connecting ring 14. A return spring 16 is fixedly installed between the second connecting ring 14 and the closed circular plate 17. The closed circular plate 17 is provided with a circular hole. The plug rod 15 extends outwards through the circular hole of the closed circular plate 17 from the second connecting ring 14. A limiting circular plate 18 is fixedly installed on the plug rod 15. The diameter of the limiting circular plate 18 is larger than the diameter of the circular hole of the closed circular plate 17. The limiting circular plate 18 is used to limit the moving distance of the first connecting block 6. When the water level drops, the first connecting block 6 is subjected to the pulling force between the floating bridge modules and will be pulled out, reducing the pulling force acting on each other between the floating bridge modules. The buffer spring 11 buffers. When the pulling force of the first connecting block 6 increases, the blocking ring 9 is deformed by the extrusion of the first contact ring. The first contact ring 12 passes through the blocking ring 9. The return spring 16 is used for the second-stage buffering of the movement of the first connecting block 6. The first contact ring 12, the connecting column 13, and the second connecting ring 14 cooperate to divide the extendable distance of the first connecting block 6 into two levels.

[0028] The telescopic connecting pieces are symmetrically arranged on both sides of the floating bridge module 1. A docking hole 7 is opened on the side of the first connecting block 6 facing the center of the floating bridge module 1. The docking holes on the two first connecting blocks 6 are arranged face to face. The second connecting block 25 is provided with a docking hole adapted to the docking hole of the first connecting block 6 on another floating bridge module. The orientation of the docking hole on the second connecting block 25 is opposite to that of the first connecting block 6. The docking holes 7 on the two second connecting blocks 25 are arranged back to back. The first connecting block 6 and the second connecting block 25 make the two single floating bridge modules form a hinged state.

[0029] The buffer spring 11 is fixedly connected between the first connection block 6 and the first contact ring 12. The connecting column 13, the first contact ring 12 and the second connection ring 14 are combined into a dumbbell shape. The first contact ring 12 is normally located behind the blocking ring 9. The fully extended length of the telescopic rod 10 is the maximum stretchable length of the buffer spring 11, and the fully retracted length of the telescopic rod 10 is the maximum compressible length of the buffer spring 11, preventing the buffer spring 11 from being overstressed and unable to recover its deformation. Due to tidal influence, when the water level drops, the buffer spring 11 is used for buffering and releases the first connection block 6.

[0030] As Figure 7 shown, the surface of the first contact ring 12 abuts against the blocking ring 9, the surface of the second connection ring 14 abuts against the blocking ring 9. The two ends of the telescopic rod 10 are respectively fixedly connected to the first connection block 6 and the first contact ring 12. The surface of the insertion rod 15 is slidably connected to the closed circular plate 17. The second connection ring 14 is sleeved on the surface of the insertion rod 15. The distance from the limit circular plate 18 to the closed circular plate 17 is the maximum moving distance of the first contact ring 12.

[0031] The single floating bridge module is interconnected with the second connection block 25 through the first connection block 6. When the water level rises and falls due to tides, the water floats the floating bridge module 1 through the support frame 4. The floating box 3 and the support frame 4 cooperate to make the lifting direction of the floating bridge module 1 always along the floating box 3. When the water level drops due to tides, the single floating bridge module follows the water level down. However, since the height of the part of the floating bridge fixed on the shore is fixed, at this time, some single floating bridge modules will have no contact with the water surface and will no longer be subject to buoyancy, while their gravity remains unchanged. The single floating bridge modules will pull each other, which may cause the connecting part to be overstressed and break, and the floating bridge will no longer be usable.

[0032] To prevent the above phenomenon, when the single floating bridge modules pull each other, the first connection block 6 in the single floating bridge module will be pulled out by the adjacent single floating bridge module. The first connection block 6 slides along the direction of the slideway 8. When the difference in water level from the initial water level is small, the first connection block 6 will stretch the buffer spring 11, using the buffer spring 11 for buffering and adapting to the fluctuations of the water surface waves. When the difference in water level from the initial water level is large, the first connection block 6 will fully pull out the telescopic rod 10. The first connection block 6 uses the telescopic rod 10 to pull the first contact ring 12. At this time, the first contact ring 12 squeezes the blocking ring 9 to deform and passes through the position of the blocking ring 9. At this time, the blocking ring 9 is between the first contact ring 12 and the connecting column 13. At this time, the second connection ring 14 can also use the return spring 16 for secondary buffering. The insertion rod 15 and the closed circular plate 17 cooperate to prevent the return spring 16 from being overstretched and deformed, giving the single floating bridge module a telescopic space when the water level drops, avoiding the floating bridges from pulling each other, causing damage to the connecting part and the floating bridge breaking, which poses a danger to the pedestrians on it.

[0033] AsFigure 8 and Figure 9 As shown in Figure 9 , the filling component includes an extension plate 23 and a folding frame 20. The folding frame 20 is a linkage structure in which four connecting rods are sequentially hinged end to end. On the side of the limit circular plate 18 away from the insertion rod 15, a curved rod 19 is fixedly installed. The end of the curved rod 19 is hinged to one of the nodes of the folding frame 20. Two sliders 21 are hinged to two nodes adjacent to the node where the curved rod is hinged on the folding frame 20. The sliders 21 are slidably connected to the first guide rod 22. The fourth node of the folding frame 20 is hinged to the extension plate 23. The inner wall of the extension plate 23 is slidably connected to the second guide rod 24. When the water level of the floating bridge drops, the buffer connection between the floating bridge modules causes a gap between the floating bridge modules. The extension plate 23 fills the gap to prevent water from covering the floating bridge and at the same time makes the plane of the multiple floating bridge modules without gaps.

[0034] There are two folding frames 20, which are axisymmetric about the floating bridge module 1. The two folding frames 20 make the extension plate 23 stress evenly. Both the left and right sides of the extension plate 23 are slidably connected to the floating bridge module 1. The bottom plane of the slider 21 abuts against the floating bridge module 1 to prevent the slider 21 from deflecting.

[0035] Both the left and right ends of the first guide rod 22 are fixedly connected to the floating bridge module 1. The end of the second guide rod 24 away from the first guide rod 22 is fixedly connected to the floating bridge module 1. The second guide rod 24 is perpendicular to the first guide rod 22. The extension plate 23 is convex-shaped. The length of the protruding part of the extension plate 23 is shorter than the distance between the two second connecting blocks 25. A strip-shaped opening is provided on the back of the floating bridge module 1. The extension plate 23 leaks out from the strip-shaped opening on the back of the floating bridge module 1. A rubber layer is laid on the surface of the extension plate 23, and the rubber layer blocks water from entering.

[0036] When the water level drops too much, the first connecting block 6 extends out, making the distance between the docking hole 7 on it and the floating bridge module 1 longer. A gap is generated between two adjacent single floating bridge modules. There is a risk of people and equipment stepping into the void, and the water wave will overflow from the gap, covering the single floating bridge module, resulting in an increase in the overall gravity of the floating bridge. At this time, the insertion rod 15 moves and uses the curved rod 19 to change the state of the folding frame 20. The folding frame 20 changes from the front-back contraction state to the front-back extension state. The cooperation between the slider 21 and the first guide rod 22 makes the left-right contraction direction of the folding frame 20 fixed, avoiding the inclination of the unfolding direction of the folding frame 20. The unfolding of the folding frame 20 pushes the extension plate 23. The extension plate 23 extends out from the gap on the back of the floating bridge module 1. Since the length of the protruding part of the extension plate 23 is shorter than the distance between the two second connecting blocks 25, the second connecting block 25 does not affect the extension of the extension plate 23, and the extension plate 23 can extend into the inside of the docking frame 5 to strengthen the stability between two adjacent single floating bridge modules. The extension plate 23 fills the gap between two adjacent single floating bridge modules, avoiding the generation of gaps between single floating bridge modules, which may cause potential safety hazards for pedestrians walking and is not convenient for transportation.

Claims

1. A pontoon bridge with multi-stage buffer connection, characterized in that It includes several floating bridge modules (1) connected in sequence and telescopic connecting pieces for connecting between the floating bridge modules. The telescopic connecting pieces include a fixed docking part and a movable docking part respectively arranged at both ends of the floating bridge module (1). The fixed docking part is used for hinging with the movable docking part of another floating bridge module. The movable docking part includes a slideway (8) arranged in the floating bridge module (1), a first connecting block (6) moving along the slideway, a first buffer group connected to the first connecting block (6), and a second buffer group connected to the first buffer group. The first connecting block (6) is hinged with the fixed docking part. The extending direction of the slideway is parallel to the extending direction of the floating bridge. The first buffer group includes a telescopic rod (10) connected to the first connecting block (6) and a buffer spring (11) sleeved outside the telescopic rod. The second buffer group includes an obstructive ring (9) fixedly arranged in the slideway (8), a connecting column (13), and a return spring (16). One end of the connecting column (13) is fixedly connected to the telescopic rod (10) and the buffer spring (11), and the other end of the connecting column (13) is fixedly connected to the slideway (8) through the return spring (16). The telescopic rod (10) and the buffer spring (11) pass through the obstructive ring (9) and are connected to the connecting column (13). The obstructive ring (9) is made of a flexible material. A first contact ring (12) is fixedly arranged at one end of the connecting column (13) close to the obstructive ring (9). When the first connecting block (6) moves, it undergoes a first-stage buffered movement through the telescopic rod (10) and the buffer spring (11). The movement of the telescopic rod drives the movement of the connecting column (13). The first contact ring (12) at one end of the connecting column (13) abuts against the obstructive ring (9) to limit the movement of the first connecting block (6). When the pulling force of the first connecting block (6) increases, the obstructive ring (9) is deformed by the extrusion of the first contact ring. The first contact ring (12) passes through the obstructive ring (9). The return spring (16) is used for the second-stage buffering of the movement of the first connecting block (6) and provides a pulling force for the first contact ring (12) to pass through the obstructive ring and reset.

2. The floating bridge according to claim 1, characterized in that, It further includes an extension plate (23) and a driving link group for driving the movement of the extension plate. A receiving cavity for receiving the extension plate (23) is arranged in the floating bridge module (1). An extension plate outlet is arranged at one end of the floating bridge module (1) close to the fixed docking part. The extension plate outlet is used for the extension plate to extend out of the floating bridge module (1). The connecting column (13) is connected to the extension plate through the driving link group. When the first connecting block (6) moves out of the floating bridge module (1), the driving link group drives the extension plate to extend out of the floating bridge module (1).

3. The floating bridge according to claim 2, wherein, A closed circular plate (17) is fixedly arranged at the end of the slideway (8). A circular hole is opened on the closed circular plate (17). A plug rod (15) is connected to one end of the connecting column (13) close to the end of the slideway. The plug rod (15) extends outward through the circular hole of the closed circular plate (17) from the connecting column (13). And a limiting circular plate (18) is arranged outside the closed circular plate (17) for the plug rod (15). The diameter of the limiting circular plate (18) is larger than the diameter of the circular hole of the closed circular plate (17). The limiting circular plate (18) is used to limit the moving distance of the first connecting block (6).

4. The pontoon bridge according to claim 3, characterized in that, The driving link group includes a curved rod (19) fixedly connected to the end of the inserting rod (15), a first guide rod (22), and two sliders (21) moving along the first guide rod. The end of the curved rod (19) is hinged to the two sliders (21) through two connecting rods respectively. The two sliders (21) are hinged to the same position of the extension plate through two connecting rods. When the first connecting block (6) moves outwards from the floating bridge module, the inserting rod (15) drives the curved rod (19) to move. The curved rod (19) drives the two sliders (21) to approach each other through the connecting rods, so as to push the extension plate to move outwards towards the other end of the floating bridge module through the connecting rods.

5. The floating bridge according to claim 4, characterized in that, The floating bridge module includes two symmetrically arranged telescopic connectors. The extension plate is connected to the two telescopic connectors through two driving link groups.

6. The pontoon bridge according to claim 5, wherein, Both ends of the first guide rod (22) are fixedly connected with two second guide rods (24). The extending direction of the second guide rod is perpendicular to the extending direction of the first guide rod (22). The extension plate is sleeved on the two second guide rods (24) and moves along the second guide rods.

7. The pontoon bridge according to claim 1, characterized in that, At the other end of the connecting column (13) away from the first contact end, a second contact ring (14) having the same size as the first contact ring (12) is provided.

8. The pontoon bridge according to claim 2, wherein, Anti-slip convex patterns (2) are provided on the top surface of the floating bridge module (1), and a rubber layer is laid on the top surface of the extension plate (23).

9. The pontoon bridge according to claim 2, characterized in that, The floating bridge module (1) is fixedly connected with a floating box (3) at the bottom, and support frames (4) are slidably connected to both the left and right sides of the floating box (3).

10. The floating bridge according to claim 1, characterized in that, The blocking ring (9) is made of rubber.

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