Highway submersible bridge with sacrifice component

Abstract

The invention discloses a highway submersible bridge with sacrifice components, which belongs to the technical field of submersible bridge structures and is characterized in that by arranging a plug pin type fixing structure, a bridge plate and a bridge pier are connected when the water surface height is low to form a bridge floor for vehicles to pass through and a water channel for the water level to rise and pass through the bridge pier during flood and torrential water flow; high-speed water flow can drive water slurry to rotate, a rotating roller is wound with a pull rope, the pull rope pulls down a blocking base blocking a plug pin, the blocking pin is made to be away from a bridge plate, the bridge plate is not fixed by the plug pin, the bridge plate can be flushed away from a bridge pier through the water flow, and before the water level continues to rise, obstruction between the bridge plate and water is reduced; when the bridge plate is about to be submerged, the fixing structure of the bridge plate can be detached, the bridge plate is abandoned, the tensile force of the bridge plate on the pier in the water flow impact process is avoided, and the safety of the main structure of the pier is protected.

Description

Technical Field

[0001] The invention belongs to the technical field of flood bridge structures, and in particular relates to a highway flood bridge with sacrificial components. Background Art

[0002] In the highway transportation network, with global climate change, extreme weather is becoming more frequent, and flood disasters caused by heavy rains pose a huge threat to highway transportation infrastructure. In many sections of roads where small and medium-sized rivers flow, ordinary highway bridges are difficult to completely withstand the impact of floods due to factors such as construction costs and design standards. Flood bridges have become a common choice for ensuring basic traffic in these areas due to their relatively simple structure and low cost. However, traditional flood bridges often have many problems when facing floods. The flood water is turbulent and has a huge impact force, which can easily cause impacts on the bridge deck structure. When the bridge deck structure is impacted, it will cause damage to the pier structure and even cause the pier to collapse. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a highway flood bridge with sacrificial components, by sacrificially removing the bridge deck when a flood breaks out, so as to protect the main structure of the bridge pier.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention comprises a plurality of bridge piers and a plurality of bridge decks, wherein the bridge piers are arranged along the riverbed, and the two ends of the bridge decks are respectively laid on the top edges of the adjacent bridge piers, and the upper surfaces of the bridge decks and the bridge piers are flush to form a bridge deck for vehicles to pass through; a latch is provided in the top of the bridge piers for horizontal movement, and the latch is retracted into the inside of the bridge piers under the action of a spring, and a stopper is provided at the tail end of the latch for vertical movement, and the stopper is blocked at the tail end of the latch so that the latch extends out of the bridge piers, and a pin hole is provided on the bridge deck, and the latch is inserted into the pin hole so that the bridge piers and the bridge decks are connected; a water channel is also provided at the top of the bridge piers, and a rotating roller is provided in the bridge piers for rotation, and a water paddle is provided on the rotating roller, and the water paddle is located in the water channel, and a pull rope is connected to the rotating roller, and a turning channel is provided in the bridge piers, and the pull rope bypasses the turning channel and is vertically connected to the lower end of the stopper, and as the high-speed impact water flows through the water channel, the pull rope pulls down the stopper so that the stopper is away from the latch, and the latch is away from the pin hole, and the bridge deck loses the latch fixation.

[0006] Furthermore, a plurality of retaining seats on a single pier are simultaneously connected to a connecting plate, the pull rope is fixedly connected to the middle portion of the lower side of the connecting plate, and a spring is supported between the bottom side of the water channel and the connecting plate.

[0007] Furthermore, a water inlet protrusion and a water outlet protrusion are respectively provided on the front and rear sides of the pier, the water channel is opened and extends from the water inlet protrusion to the water outlet protrusion, and the water inlet of the water inlet protrusion extends obliquely upward to the height of the bridge deck.

[0008] Furthermore, a countersunk hole is downwardly opened on the contact end surface of the bridge pier and the bridge deck, and a spring-supported support roller is provided in the countersunk hole. When the bridge pier is connected to the bridge deck, the bridge deck presses the support roller down into the countersunk hole. After the bridge deck loses the fixing of the pin, the support roller props up the bridge deck.

[0009] Furthermore, the blocking seat includes a vertical plate and a plurality of abutting wheels rotatably arranged on the vertical plate, and the abutting wheels abut between the tail end of the latch pin and the inner side of the bridge pier.

[0010] Furthermore, the front and rear sides of the pier are provided with obliquely extending support rods, and also include safety railings, and the safety railings are fixed to the two sides of the bridge deck through the support rods.

[0011] The beneficial effects of the present invention are:

[0012] The present invention provides a latch-type fixing structure to connect the bridge deck and the bridge piers when the water level is low to form a bridge deck for vehicles to pass through. During floods, when the water flow is turbulent, the water level rises and passes through the water channel of the bridge piers. The high-speed water flow will drive the water slurry to rotate, causing the roller to wrap around the pull rope, and the pull rope will pull down the blocking seat that blocks the latch, so that the blocking pin is away from the bridge deck. The bridge deck loses the fixation of the latch, and the water flow will wash the bridge deck away from the piers, reducing the obstruction between the bridge deck and the water before the water level continues to rise. This flooded bridge structure can remove the fixing structure of the bridge deck and abandon the bridge deck when the water flow is turbulent and continues to rise, and is about to submerge the bridge deck, thereby avoiding the pulling force on the pier by the bridge deck during the impact of the water flow, thereby protecting the safety of the main structure of the pier.

[0013] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0015] Figure 1 This is an overall schematic diagram of a highway flood bridge according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the installation of bridge piers and bridge decks according to an embodiment of the present invention;

[0017] Figure 3 This is a cross-sectional view of a water channel according to an embodiment of the present invention;

[0018] Figure 4 A cross-sectional view of a latch according to an embodiment of the present invention;

[0019] The markings in the attached drawings are as follows: 1. Bridge pier; 11. Water channel; 12. Turning channel; 13. Water inlet protrusion; 14. Water outlet protrusion; 15. Countersunk hole; 2. Bridge plate; 21. Pin hole; 3. Latch pin; 4. Block seat; 41. Vertical plate; 42. Wheel stop; 5. Roller; 51. Water paddle; 52. Pull rope; 6. Connecting plate; 7. Support roller; 8. Support rod; 9. Safety railing. DETAILED DESCRIPTION

[0020] like Figure 1 to Figure 4 As shown, the present invention discloses a highway flood bridge with sacrificial components, comprising a plurality of bridge piers 1 and a plurality of bridge decks 2. The bridge piers 1 are arranged along the riverbed, and the bridge piers 1 are fixed on the riverbed by pouring reinforced concrete. The top of the bridge piers 1 has downwardly sunken grooves on both sides, and the two ends of the bridge deck 2 are respectively built on the top edge of the adjacent bridge piers 1. The upper surfaces of the bridge deck 2 and the bridge piers 1 are flush to form a bridge deck for vehicles to pass through; a latch 3 is provided in the top of the bridge pier 1 for horizontal movement, and the latch 3 is retracted into the pier 1 under the action of a spring, and a stopper 4 is provided at the tail end of the latch 3 for vertical movement, and the stopper 4 is blocked at the tail end of the latch 3 so that the latch 3 extends out of the bridge pier 1, and the bridge deck 2 A pin hole 21 is provided on the bridge pier 1, and the latch 3 is inserted into the pin hole 21 to connect the pier 1 and the bridge deck 2; a water channel 11 is also provided on the top of the pier 1, and a roller 5 is rotatably provided in the pier 1, and a water paddle 51 is provided on the roller 5, and the water paddle 51 is located in the water channel 11, and a pull rope 52 is connected to the roller 5, and a turning channel 12 is provided in the pier 1, and the pull rope 52 bypasses the turning channel 12 and is vertically connected to the lower end of the block seat 4. As the high-speed impact water flows through the water channel 11, the pull rope 52 pulls down the block seat 4, so that the block seat 4 is away from the latch 3, and the latch 3 is away from the pin hole 21, and the bridge deck 2 loses the fixation of the latch 3.

[0021] This flood bridge structure, by setting a bolt 3 type fixed structure, connects the bridge deck 2 and the bridge pier 1 when the water level is low to form a bridge deck for vehicles to pass through. During floods, when the water flow is turbulent, the water level rises and passes through the water channel 11 of the bridge pier 1. The high-speed water flow will drive the water slurry to rotate, causing the roller 5 to wrap around the pull rope 52. The pull rope 52 will pull down the blocking seat 4 that blocks the bolt 3, so that the blocking pin is away from the bridge deck 2. The bridge deck 2 loses the fixation of the bolt 3, and the water flow will rush the bridge deck 2 away from the bridge pier 1. Before the water level continues to rise, the obstruction between the bridge deck 2 and the water is reduced. This flood bridge structure can remove the fixed structure of the bridge deck 2 and abandon the bridge deck 2 when the water flow is turbulent and continues to rise, and when it is about to submerge the bridge deck 2, to avoid the tension of the bridge deck 2 on the bridge pier 1 during the impact of the water flow, thereby protecting the safety of the main structure of the bridge pier 1.

[0022] In a further solution, Figure 3 As shown, a plurality of retaining seats 4 on a single pier 1 are simultaneously connected to a connecting plate 6 , the pull rope 52 is fixedly connected to the middle portion of the lower side of the connecting plate 6 , and a spring is provided between the bottom side of the water channel 11 and the connecting plate 6 .

[0023] By connecting a pull rope 52 and a connecting plate 6, the connecting plate 6 can pull down all the blocks 4 on a pier 1 at one time. By setting a spring to support the connecting plate 6, the automatic downward movement of the blocks 4 under vibration or long-term suspension conditions can be effectively avoided. In addition, the spring to support the connecting plate 6 can control the force of the rotating shaft wrapped around the pull rope 52 to avoid the rotation of the rotating shaft driven by a lower-speed water flow. By setting this structure, a minimum limit on the water flow speed is provided for the unloading of the bridge deck 2. The lower-speed water flow will not cause damage to the bridge pier 1, so there is no need to evacuate the bridge deck 2, thereby reducing the consumption cost of this equipment.

[0024] In a further solution, Figure 3 As shown, the pier 1 is provided with a water inlet protrusion 13 and a water outlet protrusion 14 on the front and rear sides respectively, the water channel 11 is opened and extends from the water inlet protrusion 13 to the water outlet protrusion 14, and the water inlet of the water inlet protrusion 13 extends obliquely upward to the height of the bridge deck 2.

[0025] By providing the water entry protrusion 13, the unloading water level is raised and limited to the height of the bridge deck 2, thereby preventing the water level lower than the height of the bridge deck 2 from affecting the unloading structure.

[0026] In a further solution, Figure 4 As shown, a countersunk hole 15 is downwardly opened on the contact end surface of the pier 1 and the bridge deck 2, and a spring-supported support roller 7 is provided in the countersunk hole 15. When the pier 1 is connected to the bridge deck 2, the bridge deck 2 presses the support roller 7 down into the countersunk hole 15. After the bridge deck 2 loses the fixing of the pin 3, the support roller 7 props up the bridge deck 2.

[0027] By providing a support roller 7 with a spring, after the bridge deck 2 loses the fixation of the pin 3, the support roller 7 props up the bridge deck 2. The bridge deck 2 is supported by the support roller 7 to ensure that the water flow quickly flushes the bridge deck 2 away from the pier 1, avoiding the bridge deck 2 from being stuck on the pier 1, thereby improving the rapid flood discharge capacity of this structure.

[0028] In a further solution, Figure 4 As shown, the blocking seat 4 includes a vertical plate 41 and a plurality of abutting wheels 42 rotatably arranged on the vertical plate 41 , and the abutting wheels 42 abut between the tail end of the latch pin 3 and the inner side of the pier 1 .

[0029] By providing a roller-type stopper 4 structure, the smooth movement capability of the stopper 4 is improved, and the friction stress between the stopper 4 and the pier 1 and the latch 3 is prevented from hindering the movement of the stopper 4.

[0030] In a further solution, Figure 1 As shown, the front and rear sides of the pier 1 are provided with obliquely extending support rods 8 , and also include safety railings 9 , and the safety railings 9 are fixed to the two sides of the bridge deck 2 through the support rods 8 .

[0031] By setting the safety railing 9 connected to the support rod 8 extending from the bridge pier 1, a safety fence is formed on both sides of the bridge deck, and the safety railing 9 is prevented from being obstructed by the bridge deck 2 when the bridge deck 2 is removed. When the safety railing 9 is removed from the bridge deck 2, there will be no interference between the safety railing 9 and the bridge deck 2.

[0032] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A highway flood bridge with sacrificial components, characterized in that: The invention comprises a plurality of bridge piers (1) and a plurality of bridge decks (2), wherein the bridge piers (1) are arranged along the riverbed, and the two ends of the bridge decks (2) are respectively placed on the top edges of the adjacent bridge piers (1), and the upper surfaces of the bridge decks (2) and the bridge piers (1) are flush with each other to form a bridge deck for vehicles to pass through; a latch (3) is provided in the top of the bridge pier (1) for horizontal movement, and the latch (3) is retracted into the inside of the bridge pier (1) under the action of a spring, and a stopper (4) is provided at the tail end of the latch (3) for vertical movement, and the stopper (4) is placed at the tail end of the latch (3) so that the latch (3) extends out of the bridge pier (1); a pin hole (21) is provided on the bridge deck (2), and the latch (3) is inserted into the pin hole (21), so that the bridge pier (1) and the bridge deck (2) are connected. The bridge pier (1) is connected to the top of the bridge pier (1); a water channel (11) is also provided at the top of the bridge pier (1); a roller (5) is rotatably provided in the bridge pier (1); a water paddle (51) is provided on the roller (5); the water paddle (51) is located in the water channel (11); a pull rope (52) is connected to the roller (5); a turning channel (12) is provided in the bridge pier (1); the pull rope (52) bypasses the turning channel (12) and is vertically connected to the lower end of the block seat (4); as the high-speed impact water flows through the water channel (11), the pull rope (52) pulls down the block seat (4), so that the block seat (4) is away from the latch (3), the latch (3) is away from the pin hole (21), and the bridge plate (2) loses the fixation of the latch (3).

2. The highway flood bridge with sacrificial components according to claim 1, characterized in that: A plurality of baffles (4) on a single bridge pier (1) are simultaneously connected to a connecting plate (6), the pull rope (52) is fixedly connected to the middle portion of the lower side of the connecting plate (6), and a spring is provided between the bottom side of the water channel (11) and the connecting plate (6).

3. The highway flood bridge with sacrificial components according to claim 2, characterized in that: The bridge pier (1) is provided with a water inlet protrusion (13) and a water outlet protrusion (14) on the front and rear sides respectively; the water channel (11) is opened and extends from the water inlet protrusion (13) to the water outlet protrusion (14); the water inlet of the water inlet protrusion (13) extends obliquely upward to the height of the bridge deck (2).

4. The highway flood bridge with sacrificial components according to claim 3, characterized in that: A countersunk hole (15) is provided downwardly on the contact end surface between the bridge pier (1) and the bridge deck (2), and a spring-supported support roller (7) is arranged in the countersunk hole (15). When the bridge pier (1) and the bridge deck (2) are connected, the bridge deck (2) presses the support roller (7) downward into the countersunk hole (15), and when the bridge deck (2) loses the fixing of the latch (3), the support roller (7) props up the bridge deck (2).

5. The highway flood bridge with sacrificial components according to claim 4, characterized in that: The blocking seat (4) comprises a vertical plate (41) and a plurality of abutting wheels (42) rotatably arranged on the vertical plate (41), wherein the abutting wheels (42) abut between the rear end of the latch pin (3) and the inner side of the bridge pier (1).

6. The highway flood bridge with sacrificial components according to claim 5, characterized in that: The bridge pier (1) is provided with obliquely extending support rods (8) on both sides of the front and rear, and also includes safety railings (9), and the safety railings (9) are fixed to both sides of the bridge deck (2) through the support rods (8).

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