Active protection device for preventing ship collision of bridge

Abstract

The utility model discloses a bridge ship collision prevention active protection device which comprises a laser range finder, a control assembly, a main bridge pier, a main bridge bearing platform, a separation type ship collision prevention facility structure, a polyurethane foam rotary drum and a riverbed, the laser range finder and the control assembly are arranged on the upper portion of the main bridge pier, and the main bridge bearing platform is arranged at the bottom of the main bridge pier. A plurality of separated ship collision prevention facility structures are arranged on the periphery of the main bridge bearing platform on the main bridge piers, polyurethane foam rotating cylinders are arranged on the separated ship collision prevention facility structures, and the other ends, away from the polyurethane foam rotating cylinders, of the separated ship collision prevention facility structures are used for being buried in a riverbed to be fixed. When the distance between the ship and the main bridge pier is detected to be smaller than a certain range through the optical distance measuring instrument, the control assembly controls the gas generator to inflate the gas bag to generate buoyancy, the polyurethane foam rotating drum is pulled to the water surface through the buoyancy to make contact with the ship, and the situation that the ship collides with the main bridge pier and consequently the main bridge pier is damaged is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge anti-collision protection devices, and specifically relates to an active bridge anti-ship collision protection device. Background Art

[0002] With the development of society, numerous bridges have been built across waterways to connect surrounding areas. While the construction of bridges has driven regional economic development, it has also had a certain impact on water transportation, especially ship navigation. Ships can stray from their course due to underwater undercurrents or human error and collide with bridge piers and abutments, causing damage or even collapse, resulting in serious casualties and economic losses. Therefore, it is necessary to prevent or mitigate the damage caused by ship collisions with bridge piers and abutments.

[0003] Existing bridge anti-ship collision facilities are mainly divided into fixed and floating types. The anti-ship collision facilities need to fit the bridge piers and abutments and need to be individually designed according to the shapes of the bridge piers and abutments. The anti-ship collision facilities of various types of bridges cannot be universal, and industrial production cannot be carried out to reduce costs; the floating anti-ship collision facilities are wrapped around the bridge piers. After being hit, due to their integrated structure, a complete set of anti-collision devices needs to be replaced, resulting in great waste; the existing bridge anti-ship collision facilities are usually set above the water level, which will encroach on the navigation width of ships and affect the appearance of the bridge. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides an active protection device for bridge anti-ship collision to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bridge anti-ship collision active protection device, comprising a laser rangefinder, a control component, a main bridge pier, a main bridge pedestal, a separate anti-ship collision facility structure, a polyurethane foam drum and a riverbed, wherein a laser rangefinder and a control component are provided on the upper part of the main bridge pier; the laser rangefinder and the control component are arranged on both sides of the main bridge pier, a main bridge pedestal is provided at the bottom of the main bridge pier, and a number of separate anti-ship collision facility structures are provided around the main bridge pedestal, the separate anti-ship collision facility structure comprises a steel pipe A, a steel pipe B, a steel pipe C and a steel pipe D, steel pipe B is arranged on the inner side of the steel pipe A, steel pipe C is arranged on the inner side of the steel pipe B, steel pipe D is arranged at the bottom of the steel pipe A, and inner filling concrete is provided on the inner side of the steel pipe D, and the other end of the steel pipe D away from the connection steel pipe A is used to be buried in the riverbed for fixation, steel pipe A and steel pipe D are arranged around the main bridge pedestal, and a polyurethane foam drum is provided on the separate anti-ship collision facility structure.

[0006] Furthermore, two rows of separate anti-ship collision facility structures are arranged on the left and right sides of the main bridge pier, and three rows of separate anti-ship collision facility structures are arranged in front and behind the main bridge pier. The left and right and front and back separate anti-ship collision facility structures are all arranged in a plum blossom shape.

[0007] Furthermore, a large sliding cavity is opened on the inner side of steel pipe A, a large cavity opening is opened on the top side wall of steel pipe A, a large clamping rod is provided at one end of steel pipe B, and the large clamping rod of steel pipe B is set outward. The large clamping rod of steel pipe B is used to be embedded in the inner wall of the large sliding cavity of steel pipe A and slide.

[0008] Furthermore, a small sliding cavity is opened on the inner side of steel pipe B, and a small cavity opening is opened on the top wall of the other end of steel pipe B away from the connection with steel pipe A. A small clamping rod is provided at one end of steel pipe C, and the small clamping rod of steel pipe C is set outward. The small clamping rod of steel pipe C is used to be embedded in the inner wall of the small sliding cavity of steel pipe B and slide.

[0009] Furthermore, the steel pipe C also includes a gas generator and an airbag. The airbag is provided on the inside of the steel pipe C, and the gas generator is provided on the inside of the steel pipe C near the bottom of the airbag. The gas generator is used to be fixed on the lower inner wall of the steel pipe C.

[0010] Furthermore, steel pipe A and steel pipe D are provided with flanges, which are provided with a plurality of bolt holes. The flanges include an upper flange and a lower flange. An upper flange is provided at the bottom of the other end of steel pipe A away from steel pipe B, and a lower flange is provided at the top of steel pipe D. The bolt holes of the upper flange of steel pipe A are used to align with the bolt holes of the lower flange of steel pipe D and fix them by bolts.

[0011] Furthermore, the polyurethane foam drum includes a tetrafluoroethylene slide, a polymer material shell and polyurethane foam. The polymer material shell is used to be set on the upper part of the prevention steel pipe C, polyurethane foam is provided on the inside of the polymer material shell, and a tetrafluoroethylene slide is provided between the polymer material shell and the upper part of the prevention steel pipe C.

[0012] Compared with the existing technology, this utility model has the following beneficial effects:

[0013] (1) In this utility model, the separated anti-ship collision facility structure is usually located below the water level. When the laser rangefinder detects that the distance between the ship and the main bridge pier is less than a certain range, the control component sends a signal to the separated anti-ship collision facility structure in that direction. The gas generator in the separated anti-ship collision facility structure in the area starts to start, inflates the airbag, and pulls the polyurethane foam drum to the water surface through buoyancy to contact the ship, thereby preventing the ship from colliding with the main bridge pier and causing damage to the main bridge pier.

[0014] (2) This utility model adopts a separated design. The separated anti-ship collision facility structure is divided into a replaceable part and a non-replaceable part. When a collision occurs, only the replaceable part of the separated anti-ship collision facility structure where the collision occurs needs to be replaced, which saves the use cost. At the same time, it can be applied to various shapes of bridge piers and abutment shapes. It does not encroach on the clear width of the waterway when it is not in working state.

[0015] (3) The polyurethane foam drum part of the separated anti-ship collision facility structure can rotate around the outer side of the steel pipe C. When a ship collides, the bow of the ship can be turned by rotating to reduce the kinetic energy of the ship and convert it into impact force. The kinetic energy of the ship can be further dissipated through the deformation energy dissipation of the polyurethane foam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic plan view of the main bridge piers, main bridge abutments and separated anti-ship collision facilities structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the planar structure of the separate anti-ship collision facility of the present utility model.

[0018] Figure 3 This is a schematic diagram of the overall planar structure of the separate ship-collision protection facility structure of the present invention during the working stage.

[0019] Figure 4 This is a schematic plan view of the replaceable portion of the detachable ship-collision prevention facility structure of the present invention during the non-working phase.

[0020] Figure 5 This is a schematic diagram of the planar structure of the polyurethane foam drum of the present utility model.

[0021] Figure 6 This is a schematic diagram of the flange planar structure of the present invention.

[0022] Markings in the figure: 1. Laser rangefinder; 2. Control component; 21. Gas generator; 22. Airbag; 3. Main bridge pier; 4. Main bridge abutment; 5. Separate anti-ship collision facility structure; 51. Steel pipe A; 52. Steel pipe B; 53. Steel pipe C; 54. Steel pipe D; 55. Concrete filling; 56. Bolt; 57. Flange; 5701, Bolt hole; 61. Teflon slide plate; 62. Polymer material shell; 63. Polyurethane foam; 7. Riverbed. DETAILED DESCRIPTION

[0023] like Figures 1-6As shown; the utility model provides a technical solution: a bridge anti-ship collision active protection device, comprising a laser rangefinder 1, a control component 2, a main bridge pier 3, a main bridge pedestal 4, a separate anti-ship collision facility structure 5, a polyurethane foam drum and a riverbed 7, wherein the laser rangefinder 1 and the control component 2 are provided on the upper part of the main bridge pier 3; the laser rangefinder 1 and the control component 2 are arranged on both sides of the main bridge pier 3, the main bridge pedestal 4 is provided at the bottom of the main bridge pier 3, and a plurality of separate anti-ship collision facility structures 5 are provided around the main bridge pedestal 4. The facility structure 5 includes steel pipe A51, steel pipe B52, steel pipe C53 and steel pipe D54. Steel pipe B52 is arranged on the inner side of steel pipe A51, steel pipe C53 is arranged on the inner side of steel pipe B52, steel pipe D54 is arranged at the bottom of steel pipe A51, and the inner side of steel pipe D54 is provided with inner filling concrete 55. The other end of steel pipe D54 away from the connection steel pipe A51 is used to be buried in the riverbed 7 for fixation. Steel pipe A51 and steel pipe D54 are arranged around the main bridge pier 4. A polyurethane foam drum is provided on the separated anti-ship collision facility structure 5.

[0024] Among them, two rows of separate anti-ship collision facility structures 5 are arranged on the left and right sides of the main bridge pier 4, and three rows of separate anti-ship collision facility structures 5 are arranged in front and behind the main bridge pier 4. The left and right and front and back separate anti-ship collision facility structures 5 are all arranged in a plum blossom shape.

[0025] Among them, a large sliding cavity is opened on the inside of the steel pipe A51, a large cavity opening is opened on the top side wall of the steel pipe A51, a large clamping rod is provided at one end of the steel pipe B52, and the large clamping rod of the steel pipe B52 is set outward. The large clamping rod of the steel pipe B52 is used to be embedded in the inner wall of the large sliding cavity of the steel pipe A51 and slide.

[0026] Among them, a small sliding cavity is opened on the inner side of the steel pipe B52, and a small cavity opening is opened on the top wall of the other end of the steel pipe B52 away from the connection with the steel pipe A51. A small clamping rod is provided at one end of the steel pipe C53, and the small clamping rod of the steel pipe C53 is set outward. The small clamping rod of the steel pipe C53 is used to be embedded in the inner wall of the small sliding cavity of the steel pipe B52 and slide.

[0027] Among them, the steel pipe C53 also includes a gas generator 21 and an airbag 22. The airbag 22 is provided on the inside of the steel pipe C53, and the gas generator 21 is provided on the inside of the steel pipe C53 near the bottom of the airbag 22. The gas generator 21 is used to be fixed on the lower inner wall of the steel pipe C53.

[0028] Among them, steel pipe A51 and steel pipe D54 are provided with flanges 57, and several bolt holes 5701 are opened on the flange 57. The flange 57 includes an upper flange and a lower flange; the bottom of the other end of steel pipe A51 away from steel pipe B52 is provided with an upper flange, and the top of steel pipe D54 is provided with a lower flange. The bolt holes 5701 of the upper flange of steel pipe A51 are used to align with the bolt holes 5701 of the lower flange of steel pipe D54 and are fixed by bolts 56.

[0029] Among them, the polyurethane foam drum includes a tetrafluoroethylene slide 61, a polymer material shell 62 and polyurethane foam 63. The polymer material shell 62 is used to be set on the upper part of the prevention steel pipe C53. Polyurethane foam 63 is provided on the inside of the polymer material shell 62. A tetrafluoroethylene slide 61 is provided between the polymer material shell 62 and the upper part of the prevention steel pipe C53.

[0030] Workflow:

[0031] When the detection laser rangefinder 1 detects that the distance between the ship and the main bridge pier 3 is less than a certain range, the control component 2 sends a signal to the separated anti-ship collision facility structure 5 that detects the direction of the ship by the laser rangefinder 1, and the gas generator 21 is used to start inflating the airbag 22. After the airbag 22 is filled with gas, buoyancy is generated, and the buoyancy drives the steel pipe C53, the polymer material shell 62 and the polyurethane foam 63 to move upward. When the steel pipe C53 moves upward from the small cavity of the steel pipe B52, the small clamping rod of the steel pipe C53 slides upward along the inner wall of the small sliding cavity of the steel pipe B52. After the steel pipe C53 slides upward for a distance, the small clamping rod of the steel pipe C53 will contact the small cavity of the steel pipe B52, and the buoyancy continues to drive the steel pipe C53 upward, so that the steel pipe C53 contacts the small cavity through the small clamping rod and drives the steel pipe B52 to move upward together, so that the steel pipe B52 moves upward from the large cavity of the steel pipe A51. After the rod slides upward along the inner wall of the large sliding cavity of steel pipe A51 for a distance, it contacts the large cavity opening of steel pipe A51 through the large clamping rod of steel pipe B52, and blocks the floating large clamping rod of steel pipe B52 through the large cavity opening of steel pipe A51 to prevent steel pipe B52 from sliding out of the large cavity opening of steel pipe A51. At the same time, it blocks the small clamping rod of steel pipe C53 through the small cavity opening of steel pipe B52 to prevent steel pipe C53 from sliding out of the small cavity opening of steel pipe B52. After the shell 62 and the polyurethane foam 63 emerge from the water, when the ship strikes the steel pipe C53, the polymer shell 62, and the polyurethane foam 63, the polyurethane foam 63 deforms to absorb some of the energy. At the same time, the force of the ship striking the steel pipe C53, the polymer shell 62, and the polyurethane foam 63 causes the PTFE slide 61 to drive the polymer shell 62 and the polyurethane foam 63 to rotate along the upper part of the steel pipe C53 and move the bow of the ship, thereby reducing the conversion of the ship's kinetic energy into impact force.

[0032] When a ship collides with the separate anti-ship collision facility structure 5, the impact force of the ship will force the impacted part to deform and be damaged. If the separate anti-ship collision facility structure 5 needs to be replaced, the bolts 56 on the upper flange of the steel pipe A51 and the lower flange of the steel pipe D54 can be rotated and screwed in using tools, and the entire steel pipe A51 and above can be disassembled and replaced. The newly manufactured steel pipe A51 is hoisted to the installation position, and the bolt hole 5701 of the upper flange of the steel pipe A51 is used to align with the bolt hole 5701 of the lower flange of the steel pipe D54 and tightened and fixed with bolts 56.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention; the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge anti-ship collision active protection device, comprising a laser rangefinder (1), a control component (2), a main bridge pier (3), a main bridge abutment (4), a separate anti-ship collision facility structure (5), a polyurethane foam rotating drum and a riverbed (7), characterized in that: A laser rangefinder (1) and a control assembly (2) are provided on the upper part of the main bridge pier (3); the laser rangefinder (1) and the control assembly (2) are arranged on both sides of the main bridge pier (3); a main bridge pedestal (4) is provided at the bottom of the main bridge pier (3); a plurality of separated anti-ship collision facility structures (5) are provided around the main bridge pedestal (4); the separated anti-ship collision facility structures (5) include a steel pipe A (51), a steel pipe B (52), a steel pipe C (53) and a steel pipe D (54); the steel pipe B (52) is provided The steel pipe A (51) is placed inside the steel pipe C (53), the steel pipe B (52) is placed inside the steel pipe D (54), the steel pipe D (54) is placed at the bottom of the steel pipe A (51), the inner side of the steel pipe D (54) is provided with an inner filling concrete (55), the other end of the steel pipe D (54) away from the connection steel pipe A (51) is used to be buried in the riverbed (7) for fixation, the steel pipe A (51) and the steel pipe D (54) are arranged around the main bridge pier (4), and a polyurethane foam drum is provided on the separated anti-ship collision facility structure (5).

2. The active protection device for bridge anti-ship collision according to claim 1, characterized in that: Two rows of separate anti-ship collision facility structures (5) are arranged on the left and right sides of the main bridge pier (4), and three rows of separate anti-ship collision facility structures (5) are arranged in front and behind the main bridge pier (4). The separate anti-ship collision facility structures (5) on the left and right sides and in front and behind are all arranged in a plum blossom shape.

3. The active protection device for bridge anti-ship collision according to claim 2 is characterized in that: A large sliding cavity is provided on the inner side of the steel pipe A (51), a large cavity opening is provided on the top side wall of the steel pipe A (51), and a large clamping rod is provided at one end of the steel pipe B (52). The large clamping rod of the steel pipe B (52) is arranged outward, and the large clamping rod of the steel pipe B (52) is used to be embedded in the inner wall of the large sliding cavity of the steel pipe A (51) and slide.

4. The active protection device for bridge anti-ship collision according to claim 3 is characterized by: A small sliding cavity is provided on the inner side of the steel pipe B (52), and a small cavity opening is provided on the top wall of the other end of the steel pipe B (52) away from the connection with the steel pipe A (51). A small clamping rod is provided at one end of the steel pipe C (53), and the small clamping rod of the steel pipe C (53) is arranged outward. The small clamping rod of the steel pipe C (53) is used to be embedded in the inner wall of the small sliding cavity of the steel pipe B (52) and slide.

5. The active protection device for bridge anti-ship collision according to claim 4 is characterized in that: The steel pipe C (53) further includes a gas generator (21) and an air bag (22). The air bag (22) is provided on the inner side of the steel pipe C (53). The gas generator (21) is provided on the inner side of the steel pipe C (53) near the bottom of the air bag (22). The gas generator (21) is used to be fixed on the lower inner wall of the steel pipe C (53).

6. The active protection device for bridge anti-ship collision according to claim 5, characterized in that: Steel pipe A (51) and steel pipe D (54) are provided with flanges (57), and a plurality of bolt holes (5701) are opened on the flanges (57). The flanges (57) include an upper flange and a lower flange. An upper flange is provided at the bottom of the other end of the steel pipe A (51) away from the steel pipe B (52), and a lower flange is provided at the top of the steel pipe D (54). The bolt holes (5701) of the upper flange of the steel pipe A (51) are used to align with the bolt holes (5701) of the lower flange of the steel pipe D (54) and fix them by bolts (56).

7. The active protection device for bridge anti-ship collision according to claim 6, characterized in that: The polyurethane foam drum comprises a tetrafluoroethylene slide plate (61), a polymer material shell (62) and a polyurethane foam (63); the polymer material shell (62) is used to be arranged on the upper part of the prevention steel pipe C (53); the polyurethane foam (63) is provided on the inner side of the polymer material shell (62); and a tetrafluoroethylene slide plate (61) is provided between the polymer material shell (62) and the upper part of the prevention steel pipe C (53).

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