Anti-collision device for bridge pier of sea-crossing bridge

Abstract

The invention belongs to the technical research field of disaster prevention and reduction of ocean engineering structures, and particularly relates to a sea-crossing bridge pier structure anti-collision device which comprises a plurality of buffer protection structures coaxially connected to the outer side of a pier in a sleeving mode, and the buffer protection structures are evenly arranged at equal intervals in the axis direction of the pier; the outer side of each buffer protection structure is movably connected with a fixing ring structure through a telescopic sliding structure, the fixing ring structures can move on the horizontal plane where the buffer protection structures are located, and the outer sides of the multiple fixing ring structures are vertically and slidably connected with the same wave-resistant and anti-collision structure. The top face of the wave-resistant and anti-collision structure is fixedly connected with one ends of a plurality of self-adaptive guide structures, the other ends of the self-adaptive guide structures are in sliding connection with the auxiliary protection structures, and the auxiliary protection structures are coaxially connected with the top of the pier in a sleeving mode. Abrasion of continuous impact to the bridge pier structure is reduced, the service life of the bridge and the protection device can be prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The invention belongs to the research field of marine engineering structure disaster prevention and mitigation technology, and in particular relates to a sea-crossing bridge pier anti-collision device. Background Art

[0002] Cross-sea bridges refer to bridges across the sea, such as straits and bays. Piers are the main support of bridges. Bridges are built because they cross rivers, facilitate connections between the two sides, and shorten road mileage. At the same time, the development of the waterway transportation industry has also led to an increase in the number and tonnage of ships. These two factors increase the probability of ships hitting bridges, threatening the safety of bridges and the lives of people on the bridge. Ships passing under the bridge often collide with bridge piers due to darkness at night, heavy fog, or operational errors by ship drivers. In order to prevent the piers from being damaged by the collision of ships, cross-sea bridges need to use wave-proof and anti-collision piers.

[0003] Most of the existing anti-collision devices for cross-sea bridge piers are fixed and do not have the function of rotating or adjusting direction. As a result, when encountering strong currents or waves, these protective devices cannot effectively dissipate the huge energy brought by the direct impact of the water flow on the pier structure. The huge radial impact force will directly act on the pier structure itself. Long-term accumulation may cause damage to the pier, accelerate corrosion, and even affect the overall safety and stability of the bridge. Summary of the invention

[0004] The purpose of the present invention is to provide a sea-crossing bridge pier anti-collision device to solve the above-mentioned problems.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A cross-sea bridge pier anti-collision device comprises: a plurality of buffer protection structures, wherein the plurality of buffer protection structures are coaxially sleeved on the outer side of the pier, and the plurality of buffer protection structures are evenly and evenly spaced along the axis direction of the pier;

[0007] The outer side of each buffer protection structure is movably connected to a fixed ring structure via a retractable sliding structure. The fixed ring structure can move on the horizontal plane where the buffer protection structure is located. The outer sides of several fixed ring structures are vertically slidably connected to the same wave-proof and anti-collision structure. The top surface of the wave-proof and anti-collision structure is fixedly connected to one end of several adaptive guide structures. The other end of the adaptive guide structure is slidably connected to an auxiliary protection structure. The auxiliary protection structure is coaxially sleeved on the top of the pier.

[0008] Preferably, the buffer protection structure includes a buffer ring, which is coaxially fixedly sleeved on the outer side of the pier, and a buffer groove is coaxially opened on the outer side of the buffer ring, and one end of the telescopic sliding structure is slidably connected to the inside of the buffer groove.

[0009] Preferably, the retractable sliding structure includes an arc-shaped slider, which is slidably connected to the inside of the buffer groove, and the end of the arc-shaped slider away from the buffer groove is hinged with a retractable structure, and the end of the retractable structure away from the arc-shaped slider is hinged to the fixed ring structure.

[0010] Preferably, the telescopic structure includes a sleeve hinged to the arc-shaped slider, a through hole is provided at one end of the sleeve away from the arc-shaped slider, a sleeve rod is slidably connected in the through hole, the sleeve rod is hinged to the fixed ring structure, and a buffer spring is fixed between the sleeve rod and the sleeve.

[0011] Preferably, the fixing ring structure includes a first fixing ring hinged to the sleeve rod, a plurality of clamping rings are coaxially fixed to the outer side of the first fixing ring, the plurality of clamping rings are circumferentially evenly distributed, and the plurality of clamping rings are vertically slidably connected to the wave-proof and anti-collision structure.

[0012] Preferably, the wave-proof and anti-collision structure comprises a plurality of anti-collision plates, the plurality of anti-collision plates are arranged in a ring shape, a clamping protrusion is fixedly connected to the inner side of the anti-collision plate, and the clamping protrusion is vertically slidably connected with the corresponding plurality of clamping rings and radially limitedly matched;

[0013] A wave-breaking plate is fixedly connected to the outer side of the anti-collision plate.

[0014] Preferably, the auxiliary protection structure includes a second fixing ring, which is fixedly connected to the bottom surface of the bridge, a ring groove is coaxially provided on the outer side of the second fixing ring, a limiting protrusion is provided on the edge of the ring groove, and the limiting protrusion is integrally arranged with the second fixing ring, a buffer layer is fixedly connected to the inner side of the second fixing ring, and the buffer layer is coaxially fixedly sleeved on the top of the pier.

[0015] Preferably, the adaptive guiding structure comprises a sliding sleeve, one end of which is fixedly connected to an adaptive slider structure, the other end of which is slidably connected to a sliding rod inside, and the other end of which is fixedly connected to the top surface of the anti-collision plate.

[0016] Preferably, the adaptive slider structure includes a shell vertically fixed to the sleeve, a slider is slidably connected to the inner side of one end of the shell away from the sleeve, a stopper is fixedly connected to the inner side of one end of the shell close to the sleeve, and an adaptive spring is fixed between the stopper and the slider.

[0017] Preferably, the cross-section of the wave-breaking plate is wavy.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] 1. The present invention can adjust its own position or angle according to the seawater and wave intensity, effectively alleviate direct impact, and improve the adaptability to different sea conditions.

[0020] 2. The present invention can convert the energy of wave impact into rotational kinetic energy through the rotation of the wave-proof and collision-proof structure, thereby dispersing and reducing the radial impact force that originally directly acts on the bridge pier and reducing the risk of structural damage.

[0021] 3. The present invention reduces the wear of the bridge pier structure caused by continuous impact, helps to extend the service life of the bridge and protective devices, and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 for Figure 1 Exploded diagram of

[0025] Figure 3 It is the main view of the buffer protection structure;

[0026] Figure 4 is a front view of the retractable sliding structure;

[0027] Figure 5 It is a partial exploded view of the retractable structure;

[0028] Figure 6 for Figure 1 A partial top view of

[0029] Figure 7 for Figure 2 A partial top view of

[0030] Figure 8 It is a structural schematic diagram of the auxiliary protection structure;

[0031] Fig. 9 is a cross-sectional view of the adaptive slider structure;

[0032] Fig.10 It is a usage state diagram of the present invention;

[0033] Among them, 1. bridge pier; 2. buffer protection structure; 3. retractable sliding structure; 4. fixed ring structure; 5. wave and collision prevention structure; 6. adaptive guide structure; 7. auxiliary protection structure; 201. buffer ring; 202. buffer groove; 301. arc-shaped slider; 302. retractable structure; 401. first fixed ring; 402. snap ring; 501. anti-collision plate; 502. wave-breaking plate; 503. snap convex; 601. sliding sleeve; 602. sliding rod; 603. adaptive slider structure; 701. second fixed ring; 702. limiting convex; 703. annular groove; 704. buffer cushion layer; 3021. sleeve; 3022. sleeve rod; 3023. buffer spring; 3024. through hole; 6031. shell; 6032. slider; 6033. block; 6034. adaptive spring. DETAILED DESCRIPTION

[0034] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Reference Figures 1 to 10 The present invention discloses a cross-sea bridge pier anti-collision device, comprising: a plurality of buffer protection structures 2, the plurality of buffer protection structures 2 are coaxially sleeved on the outside of the pier 1, and the plurality of buffer protection structures 2 are evenly and evenly spaced along the axis direction of the pier 1;

[0037] The outer side of each buffer protection structure 2 is movably connected to a fixed ring structure 4 through a retractable sliding structure 3. The fixed ring structure 4 can move on the horizontal plane where the buffer protection structure 2 is located. The outer sides of several fixed ring structures 4 are vertically slidably connected to the same wave-proof and anti-collision structure 5. The top surface of the wave-proof and anti-collision structure 5 is fixedly connected to one end of several adaptive guide structures 6. The other end of the adaptive guide structure 6 is slidably connected to the auxiliary protection structure 7. The auxiliary protection structure 7 is coaxially sleeved on the top of the pier 1.

[0038] The fixed ring structure 4 and the adaptive guiding structure 6 can perform rotational motion along the axis of the pier 1 .

[0039] The cross-section of the pier 1 may be circular, elliptical or other shapes, and the size of the specific structure may be adaptively adjusted according to the shape of the pier 1 , and the present invention does not impose any limitation on this.

[0040] According to a further optimized solution, the buffer protection structure 2 includes a buffer ring 201 , which is coaxially fixedly sleeved on the outer side of the pier 1 , and a buffer groove 202 is coaxially opened on the outer side of the buffer ring 201 , and one end of the telescopic sliding structure 3 is slidably connected inside the buffer groove 202 .

[0041] The buffer ring 201 can be polyurethane (PU) foam, ethylene-vinyl acetate copolymer (EVA) foam, rubber material, polyurethane elastomer, high-strength fiber composite material, etc. The present invention preferably uses polyurethane elastomer so that the buffer ring 201 has the necessary strength and durability while maintaining softness.

[0042] A further optimized solution is that the retractable sliding structure 3 includes an arc-shaped slider 301, which is slidably connected to the inside of the buffer groove 202, and the end of the arc-shaped slider 301 away from the buffer groove 202 is hinged with the retractable structure 302, and the end of the retractable structure 302 away from the arc-shaped slider 301 is hinged to the fixed ring structure 4.

[0043] A further optimized solution is that the telescopic structure 302 includes a sleeve 3021 hinged to the arc-shaped slider 301, and a through hole 3024 is opened at one end of the sleeve 3021 away from the arc-shaped slider 301. A sleeve rod 3022 is slidably connected in the through hole 3024. The sleeve rod 3022 is hinged to the fixed ring structure 4, and a buffer spring 3023 is fixed between the sleeve rod 3022 and the sleeve 3021.

[0044] According to a further optimization scheme, the fixed ring structure 4 includes a first fixed ring 401 hinged to the sleeve rod 3022, and a plurality of clamping rings 402 are coaxially fixed to the outer side of the first fixed ring 401. The plurality of clamping rings 402 are circumferentially evenly spaced, and the plurality of clamping rings 402 are vertically slidably connected to the wave-proof and collision-proof structure 5.

[0045] like Figure 4 As shown, the sleeve 3021 and the arc-shaped slider 301, the sleeve rod 3022 and the first fixed ring 401 are hinged together. When subjected to external impact force, the force exerted on the wave-proof and anti-collision structure 5 is transmitted to the first fixed ring 401, and the first fixed ring 401 can move in the horizontal plane to eliminate the radial impact force.

[0046] Further optimizing the scheme, the wave and collision prevention structure 5 includes a plurality of collision prevention plates 501, the plurality of collision prevention plates 501 are arranged in a ring shape, a clamping protrusion 503 is fixedly connected to the inner side of the collision prevention plate 501, and the clamping protrusion 503 is vertically slidably connected with a plurality of corresponding clamping rings 402 and radially limited;

[0047] The outer side of the collision plate 501 is fixedly connected with a wave-breaking plate 502. The length of the wave-breaking plate 502 is equal to the length of the bridge pier 1 above the water surface, or slightly longer than the length, so that a part of the wave-breaking plate 502 extends into the water surface.

[0048] like Figure 7 As shown, in this embodiment, four anti-collision plates 501 are provided. However, the number of anti-collision plates 501 can be any number as long as they can form a ring, and the present invention does not impose any limitation on this.

[0049] According to a further optimization scheme, the auxiliary protection structure 7 includes a second fixing ring 701, which is fixedly connected to the bottom surface of the bridge. A ring groove 703 is coaxially provided on the outer side of the second fixing ring 701. A limiting protrusion 702 is provided on the edge of the ring groove 703. The limiting protrusion 702 is integrally arranged with the second fixing ring 701. A buffer layer 704 is fixedly connected to the inner side of the second fixing ring 701. The buffer layer 704 is coaxially fixedly sleeved on the top of the pier 1.

[0050] The cushion layer 704 may be polyurethane (PU) foam, ethylene-vinyl acetate copolymer (EVA) foam, rubber material, polyurethane elastomer, high-strength fiber composite material, etc. The present invention preferably uses polyurethane elastomer so that the cushion layer 704 has the necessary strength and durability while maintaining softness.

[0051] The setting of the limiting protrusion 702 can prevent the adaptive guiding structure 6 from sliding out of the annular groove 703.

[0052] According to a further optimization scheme, the adaptive guiding structure 6 includes a sleeve 601 , one end of which is fixedly connected to an adaptive slider structure 603 , the other end of which is slidably connected to a slide rod 602 , and the other end of which is fixedly connected to the top surface of the anti-collision plate 501 .

[0053] A further optimized solution is that the adaptive slider structure 603 includes a shell 6031 vertically fixed to the sleeve 601, a slider 6032 is slidably connected to the inner side of one end of the shell 6031 away from the sleeve 601, a stopper 6033 is fixedly connected to the inner side of one end of the shell 6031 close to the sleeve 601, and an adaptive spring 6034 is fixed between the stopper 6033 and the slider 6032.

[0054] Since the wave-breaking plate 502 and the anti-collision plate 501 are designed as an integrated whole, when the wave-breaking plate 502 is hit by the waves, the wave-breaking plate 502 slides up and down along the arc of the waves, driving the sliding rod 602 to slide up and down in the sliding sleeve 601. Since the present invention is provided with multiple wave-breaking plates 502, the movement trajectories of the wave-breaking plates 502 in each direction do not interfere with each other, and the wave impact force at multiple angles can be eliminated in an all-round manner, which can well protect the bridge pier 1 from damage.

[0055] In a further optimized solution, the cross section of the wave-breaking plate 502 is wavy. The wavy setting can better dissipate the radial impact force brought by the waves, and can increase the contact area with the waves, further protecting the bridge pier 1.

[0056] The working process of the present invention is as follows: when the anti-collision plate 501 is subjected to external impact force, the anti-collision plate 501 transmits the impact force to the first fixing ring 401. When subjected to the impact force, the first fixing ring 401 can rotate in the direction of the impact force to eliminate the radial impact force. In this process, the buffer spring 3023 can further eliminate the radial impact force to better protect the bridge pier 1. Since the wave-breaking plate 502 and the anti-collision plate 501 are designed as one body, when the wave-breaking plate 502 is hit by the waves, the wave-breaking plate 502 slides up and down along the arc of the waves, driving the slide bar 602 to slide up and down in the sliding sleeve 601. Since the present invention is provided with multiple wave-breaking plates 502, the movement trajectories of the wave-breaking plates 502 in each direction do not interfere with each other, and the wave hitting forces at multiple angles can be eliminated in an all-round manner, which can well protect the bridge pier 1 from being damaged.

[0057] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] 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 sea-crossing bridge pier anti-collision device, characterized in that: include: A plurality of buffer protection structures (2), wherein the plurality of buffer protection structures (2) are coaxially sleeved on the outside of the pier (1), and the plurality of buffer protection structures (2) are evenly and equidistantly arranged along the axis direction of the pier (1); The outer side of each buffer protection structure (2) is movably connected to a fixed ring structure (4) via a telescopic sliding structure (3); the fixed ring structure (4) can move on the horizontal plane where the buffer protection structure (2) is located; the outer sides of a plurality of the fixed ring structures (4) are vertically slidably connected to the same wave-proof and anti-collision structure (5); the top surface of the wave-proof and anti-collision structure (5) is fixedly connected to one end of a plurality of adaptive guide structures (6); the other end of the adaptive guide structure (6) is slidably connected to an auxiliary protection structure (7); and the auxiliary protection structure (7) is coaxially sleeved on the top of the pier (1).

2. The anti-collision device for sea-crossing bridge piers according to claim 1 is characterized in that: The buffer protection structure (2) comprises a buffer ring (201), the buffer ring (201) is coaxially fixedly sleeved on the outside of the pier (1), a buffer groove (202) is coaxially opened on the outside of the buffer ring (201), and one end of the telescopic sliding structure (3) is slidably connected inside the buffer groove (202).

3. The anti-collision device for sea-crossing bridge piers according to claim 2 is characterized in that: The telescopic sliding structure (3) comprises an arc-shaped slider (301), the arc-shaped slider (301) is slidably connected inside the buffer groove (202), one end of the arc-shaped slider (301) away from the buffer groove (202) is hinged with the telescopic structure (302), and one end of the telescopic structure (302) away from the arc-shaped slider (301) is hinged with the fixed ring structure (4).

4. The anti-collision device for sea-crossing bridge piers according to claim 3 is characterized in that: The telescopic structure (302) comprises a sleeve (3021) hinged to the arc-shaped slider (301); a through hole (3024) is provided at one end of the sleeve (3021) away from the arc-shaped slider (301); a sleeve rod (3022) is slidably connected in the through hole (3024); the sleeve rod (3022) is hinged to the fixed ring structure (4); and a buffer spring (3023) is fixedly connected between the sleeve rod (3022) and the sleeve (3021).

5. The anti-collision device for sea-crossing bridge piers according to claim 4 is characterized in that: The fixing ring structure (4) comprises a first fixing ring (401) hinged to the sleeve rod (3022), a plurality of clamping rings (402) are coaxially fixed to the outer side of the first fixing ring (401), the plurality of clamping rings (402) are circumferentially evenly spaced, and the plurality of clamping rings (402) are vertically slidably connected to the wave-proof and anti-collision structure (5).

6. The anti-collision device for sea-crossing bridge piers according to claim 5 is characterized in that: The wave-proof and collision-proof structure (5) comprises a plurality of collision-proof plates (501), the plurality of collision-proof plates (501) are arranged in a ring shape, a clamping protrusion (503) is fixedly connected to the inner side of the collision-proof plate (501), and the clamping protrusion (503) is vertically slidably connected and radially limitedly matched with a plurality of corresponding clamping rings (402); A wave-breaking plate (502) is fixedly connected to the outer side of the anti-collision plate (501).

7. The anti-collision device for sea-crossing bridge piers according to claim 6 is characterized by: The auxiliary protection structure (7) comprises a second fixing ring (701), the second fixing ring (701) is fixedly connected to the bottom surface of the bridge, an annular groove (703) is coaxially provided on the outer side of the second fixing ring (701), a limiting protrusion (702) is provided on the edge of the annular groove (703), the limiting protrusion (702) and the second fixing ring (701) are integrally arranged, a buffer layer (704) is fixedly connected to the inner side of the second fixing ring (701), and the buffer layer (704) is coaxially fixedly sleeved on the top of the pier (1).

8. The anti-collision device for sea-crossing bridge piers according to claim 7 is characterized in that: The adaptive guiding structure (6) comprises a sliding sleeve (601), one end of which is fixedly connected to an adaptive slider structure (603), the other end of which is slidably connected to a sliding rod (602) on the inner side, and the other end of which is fixedly connected to the top surface of the anti-collision plate (501).

9. The anti-collision device for sea-crossing bridge piers according to claim 8, characterized in that: The adaptive slider structure (603) comprises a shell (6031) vertically fixed to the sliding sleeve (601); a slider (6032) is slidably connected to the inner side of one end of the shell (6031) away from the sliding sleeve (601); a stopper (6033) is fixedly connected to the inner side of one end of the shell (6031) close to the sliding sleeve (601); and an adaptive spring (6034) is fixedly connected between the stopper (6033) and the slider (6032).

10. The anti-collision device for sea-crossing bridge piers according to claim 6, characterized in that: The cross section of the wave-breaking plate (502) is wave-shaped.

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