Bridge anti-collision box

Abstract

The bridge anti-collision box comprises a base ring arranged on a bridge pier in a sleeving mode, a plurality of buffer mechanisms are slidably connected to the outer wall of the base ring, and each buffer mechanism comprises a mounting plate slidably connected to the outer wall of the base ring and a plurality of connecting rod buffer assemblies connected to the mounting plate; an impact box is connected to the end, away from the mounting plate, of the connecting rod buffering assembly, the upper end and the lower end of the impact box are open, the impact box is integrally fan-shaped, an energy absorption plate is connected into the impact box and is in a honeycomb shape, and the lower portion of the impact box is connected with a floating box through a drainage assembly. The energy absorption plates can fluctuate up and down along with the change of buoyancy, the position, expected to be impacted, of the pier can be effectively protected, the honeycomb-shaped energy absorption plates are adopted, kinetic energy generated during impact can be effectively absorbed through collapse of the energy absorption plates, the connecting rod buffering assembly is arranged behind the energy absorption plates to conduct secondary buffering on the impact, and the energy absorption effect is improved. And the safety of the pier can be further protected.

Description

Technical Field

[0001] The invention relates to the technical field of bridge protection equipment, and in particular to a bridge anti-collision box. Background Art

[0002] With the advancement of human science and technology, and the superior development of design and construction conditions, various bridges stand between islands, ranging from tens of kilometers long to hundreds of meters short. These bridges have become the main channels for transportation on the islands. Their importance is self-evident. However, with the rapid increase in the number of bridges and ships, news reports of human operational errors or force majeure causing ships to lose control and collide with various bridges, resulting in irreversible damage to bridges are not uncommon. How to prevent out-of-control ships from colliding with bridges has become a hot topic. It is also a problem that the bridge industry must face and solve. Looking at the various types of anti-collision equipment available on the Chinese market, most of them are pier protection blocking equipment.

[0003] This type of blocking equipment can only block the impact force of small ships on bridge piers. Currently, most protective equipment uses hollow protective shells made of composite materials, which are wrapped around the bridge piers and use the cushioning effect of the hollow protective shells for cushioning. However, there are still certain shortcomings. Only using the hollow shell for a single cushioning has an insignificant effect in reducing the impact force, and the cushioning effect needs to be further improved. Summary of the invention

[0004] The purpose of the present invention is to provide a bridge crash box to solve the above-mentioned problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A bridge crash box of the present invention comprises a base ring mounted on a bridge pier, a plurality of groups of buffer mechanisms are slidably connected to the outer wall of the base ring, the buffer mechanisms comprise a mounting plate slidably connected to the outer wall of the base ring and a plurality of connecting rod buffer assemblies connected to the mounting plate, an impact box is connected to one end of the connecting rod buffer assembly away from the mounting plate, the upper and lower ends of the impact box are open, and the impact box is fan-shaped as a whole, an energy absorbing plate is connected to the interior of the impact box, the energy absorbing plate is honeycomb-shaped, and a buoyancy box is connected to the bottom of the impact box through a drainage assembly.

[0007] Furthermore, the base ring includes two half rings spliced ​​to each other, a plurality of fixing holes are opened on the half rings, and the half rings are fixed to the pier after screws penetrate the fixing holes.

[0008] Furthermore, a connection assembly is provided on the outer sides of the top and bottom connection parts of the two half rings, and the connection assembly includes a fixing plate, and two ends of the fixing plate are fixed to the two half rings by two screws respectively.

[0009] Furthermore, the outer wall of the base ring is connected to the mounting plate via a sliding assembly, the sliding assembly comprises a slide rail connected to the outer wall of the base ring and a slider slidably connected to the slide rail, and the mounting plate is connected to the slider.

[0010] Furthermore, eight sliding components are provided on the outer wall of the base ring, and the angle between two adjacent sliding components is 45°.

[0011] Furthermore, the length of the slide rail is smaller than the length of the base ring, and an annular baffle is provided on the top and bottom of the eight slide rails, and the annular baffle is fixed on the outer wall of the base ring.

[0012] Furthermore, the connecting rod buffer assembly includes a base plate connected to the mounting plate by bolts, three guide rods are fixed on an end surface of the base plate away from the mounting plate, the other end of the guide rod passes through a guide hole provided on the displacement plate, a spring is sleeved on the rod body of the guide rod between the base plate and the displacement plate, a groove is provided on an end surface of the displacement plate away from the base plate, a push rod is inserted into the groove, and the push rod is fixed in the groove by bolts, the other end of the push rod is connected to a top plate, the top plate is connected to the inner wall of the impact box, three groups of four-link rods are connected to the outer wall of the push rod, the two ends of the four-link rod are respectively fixed on the outer wall of the push rod and the base plate, the two ends of the four-link rod are respectively perpendicular to the push rod and the base plate, and the four-link rod is placed in a limiting groove provided on the displacement plate.

[0013] Furthermore, the angle between two adjacent guide rods is 120°, the angle between two adjacent four-link rods is 120°, and the angle between adjacent guide rods and four-link rods is 60°.

[0014] Furthermore, strip-shaped water grooves are provided on the outer walls of the impact box and the buoyancy box.

[0015] Furthermore, the drainage assembly includes a support plate connected to the bottom of the flushing box, the bottom of the support plate is connected to the floating box, and the support plate is provided with drainage holes.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are:

[0017] The present invention can make each energy absorbing plate rise and fall with the change of buoyancy, which can effectively protect the position of the bridge pier that is expected to be hit, and adopts a honeycomb energy absorbing plate, which can effectively absorb the kinetic energy during the impact through the collapse of the energy absorbing plate, and a connecting rod buffer assembly is arranged behind the energy absorbing plate to perform secondary buffering of the impact, which can further protect the safety of the bridge pier. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a front view of the bridge crash box of the present invention;

[0020] Figure 2 It is a transverse cross-sectional view of the bridge crash box of the present invention;

[0021] Figure 3 It is a three-dimensional diagram of the connecting rod buffer assembly;

[0022] Figure 4 It is a top view of the connecting rod buffer assembly;

[0023] Explanation of the accompanying drawings: 1. base ring; 101. half ring; 102. screw; 2. mounting plate; 3. impact box; 4. energy absorption plate; 5. floating box; 6. fixing plate; 7. slide rail; 8. slider; 9. annular baffle; 10. bottom plate; 11. guide rod; 12. displacement plate; 13. push rod; 14. top plate; 15. four-link; 16. limit groove; 17. spring; 18. support plate; 19. drainage hole. DETAILED DESCRIPTION

[0024] like Figure 1-4 As shown, a bridge crash box includes a base ring 1 sleeved on a bridge pier, the base ring 1 includes two mutually spliced ​​half rings 101, the half rings 101 are provided with a plurality of fixing holes, and the half rings 101 are fixed to the bridge pier after passing through the fixing holes by screws 102. The outer sides of the top and bottom connecting parts of the two half rings 101 are provided with connecting components, and the connecting components include a fixing plate 6, and the two ends of the fixing plate 6 are respectively fixed to the two half rings 101 by two screws to strengthen the connectivity between the two half rings 101.

[0025] Several groups of buffer mechanisms are slidably connected to the outer wall of the base ring 1. The outer wall of the base ring 1 is connected to the mounting plate 2 through a sliding assembly. Eight sliding assemblies are arranged on the outer wall of the base ring 1, and the angle between two adjacent sliding assemblies is 45°. The sliding assembly includes a slide rail 7 connected to the outer wall of the base ring 1 and a slider 8 slidably connected to the slide rail 7, and the mounting plate 2 is connected to the slider 8. The length of the slide rail 5 is less than the length of the base ring 1. The top and bottom of the eight slide rails 5 are provided with an annular baffle 9, which is fixed to the outer wall of the base ring 1. The slider 2 is blocked by the annular baffle 9 to prevent the slider 2 from sliding out of the slide rail 5.

[0026] The buffer mechanism includes a mounting plate 2 slidably connected to the outer wall of the base ring 1 and a plurality of connecting rod buffer assemblies connected to the mounting plate 2. The connecting rod buffer assembly includes a base plate 10 connected to the mounting plate 2 by bolts. Three guide rods 11 are fixed on one end face of the base plate 10 away from the mounting plate 2. The other end of the guide rod 11 passes through a guide hole provided on a displacement plate 12. A spring 17 is sleeved on the rod body of the guide rod 11 between the base plate 10 and the displacement plate 12. The displacement plate 12 is away from one end face of the base plate 10. A groove is opened on it, a push rod 13 is inserted into the groove, and the push rod 13 is fixed in the groove by bolts, the other end of the push rod 13 is connected with a top plate 14, the top plate 14 is connected to the inner wall of the impact box 3, and three groups of four-link rods 15 are connected to the outer wall of the push rod 13, and the two ends of the four-link rod 15 are respectively fixed on the outer wall of the push rod 13 and the bottom plate 10, and the two ends of the four-link rod 15 are respectively perpendicular to the push rod 13 and the bottom plate 10, and the four-link rod 15 is placed in a limiting groove 16 opened on the displacement plate 12.

[0027] The angle between two adjacent guide rods 11 is 120°, the angle between two adjacent four-link rods 15 is 120°, and the angle between adjacent guide rods 11 and four-link rods 15 is 60°.

[0028] An impact box 3 is connected to one end of the connecting rod buffer assembly away from the mounting plate 2. The upper and lower ends of the impact box 3 are open, and the impact box 3 is fan-shaped as a whole. An energy absorbing plate 4 is connected to the inside of the impact box 3, and the energy absorbing plate 4 is honeycomb-shaped.

[0029] The bottom of the impact box 3 is connected to a buoyancy box 5 through a drainage assembly. The drainage assembly includes a support plate 18 connected to the bottom of the flushing box 3. The bottom of the support plate 18 is connected to the buoyancy box 5. The support plate 18 is provided with a drainage hole 19.

[0030] Strip-shaped water grooves are provided on the outer walls of the impact box 3 and the buoyancy box 5 to reduce the impact force of water on the impact box 3 and the buoyancy box 5.

[0031] When an impact occurs, the honeycomb-shaped energy-absorbing plate 4 first collapses to absorb energy, and then the remaining impact force is transmitted to the connecting rod buffer assembly. The top rod 13 drives the displacement plate 12 to move toward the pier, and the two middle rods of the four-link 15 are bent to form an acute angle. At the same time, the spring 17 is compressed to apply force to the displacement plate 12 and the top rod 13 to buffer and release energy, thereby reducing the damage to the pier caused by the impact force.

[0032] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A bridge anti-collision box, characterized in that: The invention comprises a base ring (1) sleeved on a bridge pier, wherein a plurality of buffer mechanisms are slidably connected to the outer wall of the base ring (1), wherein the buffer mechanisms comprise a mounting plate (2) slidably connected to the outer wall of the base ring (1) and a plurality of connecting rod buffer assemblies connected to the mounting plate (2), wherein an impact box (3) is connected to one end of the connecting rod buffer assembly away from the mounting plate (2), wherein the upper and lower ends of the impact box (3) are open, and the impact box (3) is fan-shaped as a whole, wherein an energy absorbing plate (4) is connected to the interior of the impact box (3), and wherein the energy absorbing plate (4) is honeycomb-shaped, and a buoyancy box (5) is connected to the bottom of the impact box (3) via a drainage assembly.

2. The bridge crash box according to claim 1, characterized in that: The base ring (1) comprises two half rings (101) spliced ​​to each other, a plurality of fixing holes are provided on the half rings (101), and the half rings (101) are fixed to the bridge pier after screws (102) penetrate the fixing holes.

3. The bridge crash box according to claim 2, characterized in that: The outer sides of the top and bottom connection parts of the two half rings (101) are provided with connection components, and the connection components include a fixing plate (6), and the two ends of the fixing plate (6) are fixed to the two half rings (101) by two screws respectively.

4. The bridge crash box according to claim 1, characterized in that: The outer wall of the base ring (1) is connected to the mounting plate (2) via a sliding assembly, wherein the sliding assembly comprises a slide rail (7) connected to the outer wall of the base ring (1) and a slider (8) slidably connected to the slide rail (7), and the mounting plate (2) is connected to the slider (8).

5. The bridge crash box according to claim 4, characterized in that: Eight sliding components are arranged on the outer wall of the base ring (1), and the angle between two adjacent sliding components is 45°.

6. The bridge crash box according to claim 5, characterized in that: The length of the slide rail (5) is smaller than the length of the base ring (1), and an annular baffle (9) is provided at the top and bottom of the eight slide rails (5), and the annular baffle (9) is fixed on the outer wall of the base ring (1).

7. The bridge crash box according to claim 1, characterized in that: The connecting rod buffer assembly comprises a base plate (10) connected to the mounting plate (2) by bolts, three guide rods (11) are fixed on one end surface of the base plate (10) away from the mounting plate (2), the other end of the guide rod (11) passes through a guide hole provided on the displacement plate (12), a spring (17) is sleeved on the rod body of the guide rod (11) between the base plate (10) and the displacement plate (12), a groove is provided on one end surface of the displacement plate (12) away from the base plate (10), a push rod (13) is inserted into the groove, and the push rod (13) 13) is fixed in the groove by bolts, the other end of the push rod (13) is connected to a top plate (14), the top plate (14) is connected to the inner wall of the impact box (3), the outer wall of the push rod (13) is connected to three groups of four-link rods (15), the two ends of the four-link rod (15) are respectively fixed on the outer wall of the push rod (13) and the bottom plate (10), the two ends of the four-link rod (15) are respectively perpendicular to the push rod (13) and the bottom plate (10), and the four-link rod (15) is placed in a limiting groove (16) opened on the displacement plate (12).

8. The bridge crash box according to claim 7, characterized in that: The angle between two adjacent guide rods (11) is 120°, the angle between two adjacent four-link rods (15) is 120°, and the angle between adjacent guide rods (11) and four-link rods (15) is 60°.

9. The bridge crash box according to claim 1, characterized in that: Strip-shaped water grooves are provided on the outer walls of the impact box (3) and the floating box (5).

10. The bridge crash box according to claim 1, characterized in that: The drainage assembly comprises a support plate (18) connected to the bottom of the flushing box (3), the bottom of the support plate (18) is connected to the floating box (5), and a drainage hole (19) is provided on the support plate (18).

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