Modularly replaceable node-based assembled highway bridge structure

Abstract

The utility model discloses an assembly type highway bridge structure based on modularization replaceable node relates to highway bridge design technical field, including beam board, the flow guide groove of being set up in the inner wall of beam board, the buffer board of being set up in the inner wall top of flow guide groove, the through -hole of having on the top of buffer board, the type board of fixed connection in the inner wall of flow guide groove, the dredging device of detachable fixed connection in the inner wall of type board, the dredging device is used for the impact dredging of through -hole, the dredging device includes vertical cylinder, the inner wall swing joint of vertical cylinder has the piston, the bottom surface fixed connection of piston has return spring. The utility model discloses through setting buffer board and dredging device, utilize the pressure of the vehicle travel to drive impact lance to carry out repeated airflow impact to through -hole, can complete dredging automatically when the through -hole is blocked, avoid the tediousness and high cost of manual dredging, ensure that the bridge deck rainwater is discharged in time, reduce the damage of accumulated water to bridge structure.

Description

Technical Field

[0001] This utility model relates to the field of highway bridge design technology, specifically to a prefabricated highway bridge structure based on modular replaceable nodes. Background Technology

[0002] Prefabricated highway bridges are a type of under-deck steel truss bridge that can be quickly assembled and disassembled. When the bridge deck of a prefabricated highway bridge is connected, the connection points of the bridge deck are supported on the supporting structure on the pier. After long-term rain exposure, water leakage is likely to occur at the connection points of the bridge deck. The leaked rainwater will flow onto the supporting structure, which will lead to corrosion of the supporting structure and affect its stability.

[0003] The prior art proposes a Chinese patent with publication number CN216194028U to solve the aforementioned technical problems. The technical solution disclosed in this patent document is as follows: A prefabricated highway bridge connection structure includes: beams, a guide channel, and a buffer plate; the beam ends are provided with a connecting ring surface, and the ends of two beams are connected, forming a semi-circular annular groove. The guide channel is located in the semi-circular annular groove. A limiting groove is provided on the connecting ring surface, and a pin is provided at the bottom of the guide channel. The pin is inserted into the limiting groove. By setting a guide channel between two prefabricated beams and a limiting plate at the top of the guide channel, and using concrete to fix the ear plate at the top of the limiting plate to the steel reinforcement on the beam, rainwater seeping down the bridge deck will flow into the guide channel and then into the drainage pipe through the guide pipe at the bottom of the guide channel, thereby achieving drainage at the bridge deck connection and preventing rainwater seepage.

[0004] However, in actual use, rainwater can wash away the bridge surface and carry away gravel and other debris, clogging the openings and preventing rainwater from draining properly, which can easily lead to water accumulation on the bridge. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a prefabricated highway bridge structure based on modular replaceable nodes. By designing an integrated drainage and dredging system including structures such as guide channels, buffer plates, and dredging devices, the system utilizes the pressure generated by vehicle movement as a power source to achieve automatic dredging of drainage holes (through holes) without manual intervention. At the same time, the modular design allows the dredging device to be detachably connected to the main bridge structure, facilitating installation and replacement, and effectively improving the reliability and maintenance convenience of the bridge drainage system.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated highway bridge structure based on modular replaceable nodes, including beams and slabs;

[0007] A flow channel is formed in the inner wall of the beam or slab;

[0008] A buffer plate is installed at the top of the inner wall of the flow channel, and the buffer plate has through holes at the top.

[0009] A C-shaped plate fixedly connected to the inner wall of the guide channel;

[0010] A detachable unblocking device is fixedly connected to the inner wall of a U-shaped plate. The unblocking device is used to impact and unblock through holes. The unblocking device includes a vertical cylinder, a piston is movably connected to the inner wall of the vertical cylinder, a return spring is fixedly connected to the bottom surface of the piston, a piston rod is fixedly connected to the top of the piston, a lower pressure plate is fixedly connected to the top of the piston rod, a vertical one-way valve pipe is fixedly connected to the bottom end of the vertical cylinder, and a horizontal one-way valve is fixedly connected to one end of the horizontal one-way valve, with an impact nozzle fixedly connected to one end of the horizontal one-way valve.

[0011] In a preferred embodiment of this invention, the top end of the impact nozzle is located below the through hole, and the piston rod moves through the top of the vertical cylinder.

[0012] As a preferred embodiment of this utility model, a valve core is movably connected to the inner wall of the vertical one-way valve tube, and an internal spring is fixedly connected to the top of the valve core. The top end of the internal spring is fixedly connected to the bottom of the vertical cylinder.

[0013] As a preferred embodiment of this invention, the outer wall of the impact nozzle is fixedly connected to the vertical cylinder by a connecting rod.

[0014] As a preferred embodiment of this utility model, the end of the beam plate is provided with an outwardly protruding steel keel, the steel keel penetrates to the inner wall of the guide channel, and a butt hole is opened on one side of the C-shaped plate, and the outer wall of the steel keel is fixedly connected to the inner wall of the butt hole.

[0015] As a preferred embodiment of this invention, the outer wall of the vertical cylinder is detachably and fixedly connected to the bottom of the inner wall of the U-shaped plate via an installation ring.

[0016] As a preferred embodiment of this utility model, the top of the C-shaped plate is provided with a slot, and the outer wall of the piston rod is movably connected to the inner wall of the slot.

[0017] As a preferred embodiment of this invention, a drain pipe is fixedly connected to the inner wall of the guide channel, and a guide bucket is connected to the top of the drain pipe.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model, by setting up a buffer plate and a dredging device, uses the pressure generated by vehicle movement to drive the impact nozzle to repeatedly impact the through hole with airflow. When the through hole is blocked, it can automatically clear the blockage, avoiding the tediousness and high cost of manual dredging, ensuring that rainwater on the bridge surface is discharged in time, and reducing the damage of water accumulation to the bridge structure.

[0020] 2. This utility model cleverly utilizes the pressure generated by vehicle movement as the power for clearing blockages, eliminating the need for additional power devices, thus saving energy consumption. Furthermore, the repeated passage of vehicles creates a continuous impact, significantly improving the clearing effect and adapting to the actual use scenarios of bridges.

[0021] 3. When the through hole is blocked, rainwater cannot flow into the guide channel, thus avoiding the obstruction of the airflow from the impact nozzle and ensuring the effectiveness of the unblocking process. At the same time, the one-way design of the vertical one-way valve pipe and the horizontal one-way valve ensures that the compression and discharge of air in the vertical cylinder are carried out in an orderly manner, improving the working stability of the unblocking device.

[0022] 4. The dredging device of this utility model is detachably connected to the C-shaped plate by the mounting ring (such as bolt or rivet connection). When the dredging device malfunctions, it can be quickly disassembled and replaced without large-scale dismantling of the main bridge structure, reducing maintenance difficulty and cost, and adapting to the modular characteristics of prefabricated bridges. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the unblocking device of this utility model;

[0025] Figure 3 This is a schematic diagram showing the detailed structure of the vertical cylinder of this utility model;

[0026] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0027] In the diagram: 1. Beam plate; 2. Buffer plate; 3. Through hole; 4. C-shaped plate; 5. Reinforcing steel keel; 6. Guide channel; 7. Unblocking device; 8. Drain pipe; 9. Guide bucket; 10. Lower pressure plate; 11. Vertical cylinder; 12. Piston rod; 13. Impact nozzle; 14. Mounting ring; 15. Piston; 16. Return spring; 17. Horizontal check valve; 18. Vertical check valve pipe; 19. Valve core; 20. Internal spring; 21. Slot. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0032] Example 1

[0033] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a prefabricated highway bridge structure based on modular replaceable nodes, including beams and slabs 1;

[0034] A flow channel 6 is formed on the inner wall of beam 1;

[0035] A buffer plate 2 is installed at the top of the inner wall of the guide channel 6, and a through hole 3 is started at the top of the buffer plate 2.

[0036] The C-shaped plate 4 is fixedly connected to the inner wall of the guide channel 6;

[0037] A detachable unblocking device 7 is fixedly connected to the inner wall of the U-shaped plate 4. The unblocking device 7 is used to impact and unblock the through hole 3. The unblocking device 7 includes a vertical cylinder 11. A piston 15 is movably connected to the inner wall of the vertical cylinder 11. A return spring 16 is fixedly connected to the bottom surface of the piston 15. A piston rod 12 is fixedly connected to the top of the piston 15. A lower pressure plate 10 is fixedly connected to the top of the piston rod 12. A vertical one-way valve pipe 18 is fixedly connected to the bottom end of the vertical cylinder 11. A horizontal one-way valve 17 is fixedly connected to the side of the vertical cylinder 11 near the bottom end. An impact nozzle 13 is fixedly connected to one end of the horizontal one-way valve 17.

[0038] Specifically, by setting up a buffer plate 2 and a dredging device 7, the pressure generated by vehicle movement drives the impact nozzle 13 to repeatedly impact the through hole 3 with airflow. When the through hole 3 is blocked, it can automatically clear the blockage, avoiding the tediousness and high cost of manual dredging, ensuring that rainwater on the bridge surface is discharged in time, and reducing the damage of water accumulation to the bridge structure.

[0039] Example 2

[0040] The second embodiment of this utility model provides a technical solution: the top end of the impact nozzle 13 is located below the through hole 3, and the piston rod 12 movably passes through the top of the vertical cylinder 11. A valve core 19 is movably connected to the inner wall of the vertical one-way valve pipe 18, and an internal spring 20 is fixedly connected to the top of the valve core 19. The top end of the internal spring 20 is fixedly connected to the bottom of the vertical cylinder 11.

[0041] The outer wall of the impact nozzle 13 is fixedly connected to the vertical cylinder 11 by a connecting rod.

[0042] Specifically, when the through hole 3 is blocked, rainwater cannot flow into the guide channel 6, thus avoiding the obstruction of the airflow from the impact nozzle 13 and ensuring the effectiveness of the unblocking process. At the same time, the one-way design of the vertical one-way valve pipe 18 and the horizontal one-way valve 17 ensures that the compression and discharge of air in the vertical cylinder 11 are carried out in an orderly manner, thereby improving the working stability of the unblocking device 7.

[0043] Example 3

[0044] The third embodiment of this utility model provides a technical solution: the end of the beam plate 1 is provided with an outwardly protruding steel keel 5, the steel keel 5 penetrates to the inner wall of the guide channel 6, and a docking hole is opened on one side of the U-shaped plate 4, and the outer wall of the steel keel 5 is fixedly connected to the inner wall of the docking hole.

[0045] The outer wall of the vertical cylinder 11 is detachably and fixedly connected to the bottom of the inner wall of the U-shaped plate 4 via the mounting ring 14.

[0046] The top of the U-shaped plate 4 is provided with a slot 21, and the outer wall of the piston rod 12 is movably connected to the inner wall of the slot 21.

[0047] A drain pipe 8 is fixedly connected to the inner wall of the flow channel 6, and a guide bucket 9 is connected to the top of the drain pipe 8.

[0048] Specifically, the unblocking device 7 is detachably connected to the U-shaped plate 4 via the mounting ring 14, such as by bolts or rivets. When the unblocking device 7 malfunctions, it can be quickly disassembled and replaced without large-scale dismantling of the main bridge structure, thus reducing maintenance difficulty and cost and adapting to the modular characteristics of prefabricated bridges.

[0049] Example 4

[0050] The fourth embodiment of this utility model provides a technical solution: connection between the C-shaped plate 4 and the inner wall of the guide channel 6: the two sides of the C-shaped plate 4 are fixedly connected to the inner wall of the guide channel 6 by expansion bolts, and the expansion bolts are evenly distributed along the height direction of the C-shaped plate 4 to ensure a firm connection.

[0051] Connection between guide bucket 9 and inner wall of guide channel 6: The outer periphery of guide bucket 9 is fixedly connected to the inner wall of guide channel 6 by welding or bolts. When welding, full welding process is used to ensure sealing and prevent rainwater leakage. When bolted, the outer periphery of guide bucket 9 is provided with flange edge, which is fixed to the inner wall of guide channel 6 by bolts.

[0052] Connection between buffer plate 2 and the top of the inner wall of guide channel 6: The edge of buffer plate 2 is fixedly connected to the top of the inner wall of guide channel 6 by countersunk bolts. The head of the countersunk bolts is embedded in buffer plate 2 to avoid affecting vehicle driving.

[0053] Structure of the transverse one-way valve 17: The transverse one-way valve 17 is equipped with an elastic valve plate. One end of the valve plate is fixed to the inner wall of the transverse one-way valve 17, and the other end can swing freely. When the vertical cylinder 11 draws in air, the valve plate closes under the action of air pressure difference, preventing external air from entering through the transverse one-way valve 17. When the vertical cylinder 11 expels air, the valve plate is pushed open by the airflow, allowing compressed air to pass through.

[0054] Working principle:

[0055] In this prefabricated highway bridge structure based on modular replaceable nodes, the various components work together to achieve drainage and blockage clearing functions. The specific principle is as follows:

[0056] Rainwater from the bridge deck flows into the guide channel 6 through the through hole 3. The rainwater then collects in the guide channel 6 and is guided by the guide bucket 9 to the drainage pipe 8, and finally discharged from the bridge structure through the drainage pipe 8.

[0057] When the through hole 3 becomes blocked, pressure is generated on the buffer plate 2 during vehicle operation. The buffer plate 2 deforms under pressure and presses down on the lower pressure plate 10. After the lower pressure plate 10 is subjected to force, it applies pressure to the piston rod 12, pushing the piston rod 12 to move downward, which in turn drives the piston 15 to move downward on the inner wall of the vertical cylinder 11, compressing the air on the inner wall of the vertical cylinder 11. The compressed air is delivered to the impact nozzle 13 through the transverse one-way valve 17. The impact nozzle 13 ejects the compressed air in the form of a high-speed airflow, impacting the through hole 3 and clearing the through hole 3.

[0058] As vehicles repeatedly drive across the bridge surface, they exert repeated pressure on the buffer plate 2, causing the lower pressure plate 10, piston rod 12, and piston 15 to move repeatedly. The air inside the vertical cylinder 11 is repeatedly compressed, and the impact nozzle 13 continuously ejects high-speed airflow, repeatedly impacting the through hole 3, which significantly improves the unblocking effect.

[0059] When the through hole 3 is blocked, rainwater cannot flow into the guide channel 6, thus avoiding the rainwater from obstructing the airflow ejected from the impact nozzle 13 and ensuring the dredging efficiency.

[0060] During the intake process of the vertical cylinder 11, the vertical one-way valve pipe 18 is opened and the horizontal one-way valve 17 is closed, and the external air enters the vertical cylinder 11 through the vertical one-way valve pipe 11; during the exhaust process of the vertical cylinder 11, the vertical one-way valve pipe 18 is closed and the horizontal one-way valve 17 is opened, and the compressed air enters the impact nozzle 13 through the horizontal one-way valve 17.

[0061] The mounting ring 14 can be fixedly connected to the C-shaped plate 4 by bolts or rivets, thereby fixing the vertical cylinder 11 to the inner wall of the C-shaped plate 4.

[0062] In summary: by setting up the buffer plate 2 and the unblocking device 7, the pressure generated by the vehicle's movement drives the impact nozzle 13 to repeatedly impact the through hole 3 with airflow. When the through hole 3 becomes blocked, it can automatically unblock it, avoiding the tediousness and high cost of manual unblocking, ensuring that rainwater on the bridge surface is discharged in time, and reducing the damage of water accumulation to the bridge structure.

[0063] The vertical cylinder, piston rod, piston, return spring, horizontal check valve, vertical check valve tube, valve core, and built-in spring used in this application can be additionally equipped with protective measures of common knowledge in this technical field under different usage environments. These measures include, but are not limited to, the following: protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing.

[0064] It should be noted that the vertical cylinder, piston rod, piston, return spring, horizontal check valve, vertical check valve tube, valve core, and built-in spring are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters, are all common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0065] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0066] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0067] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A prefabricated highway bridge structure based on modular replaceable nodes, characterized in that: Including beams and slabs (1); A flow channel (6) is formed on the inner wall of the beam (1); A buffer plate (2) is set at the top of the inner wall of the guide channel (6), and the top of the buffer plate (2) has a through hole (3); The C-shaped plate (4) is fixedly connected to the inner wall of the guide channel (6); A detachable unblocking device (7) is fixedly connected to the inner wall of the U-shaped plate (4). The unblocking device (7) is used to impact unblock the through hole (3). The unblocking device (7) includes a vertical cylinder (11). A piston (15) is movably connected to the inner wall of the vertical cylinder (11). A return spring (16) is fixedly connected to the bottom surface of the piston (15). A piston rod (12) is fixedly connected to the top of the piston (15). A lower pressure plate (10) is fixedly connected to the top of the piston rod (12). A vertical one-way valve pipe (18) is fixedly connected to the bottom end of the vertical cylinder (11). A horizontal one-way valve (17) is fixedly connected to the side of the vertical cylinder (11) near the bottom end. An impact nozzle (13) is fixedly connected to one end of the horizontal one-way valve (17).

2. The prefabricated highway bridge structure based on modular replaceable nodes according to claim 1, characterized in that: The top of the impact nozzle (13) is located below the through hole (3), and the piston rod (12) moves through the top of the vertical cylinder (11).

3. The prefabricated highway bridge structure based on modular replaceable nodes according to claim 1, characterized in that: The inner wall of the vertical one-way valve tube (18) is movably connected to a valve core (19), and the top of the valve core (19) is fixedly connected to a built-in spring (20), the top of the built-in spring (20) being fixedly connected to the bottom of the vertical cylinder (11).

4. The prefabricated highway bridge structure based on modular replaceable nodes according to claim 1, characterized in that: The outer wall of the impact nozzle (13) is fixedly connected to the vertical cylinder (11) by a connecting rod.

5. The prefabricated highway bridge structure based on modular replaceable nodes according to claim 1, characterized in that: The beam (1) is provided with a protruding steel keel (5) at its end. The steel keel (5) extends through the inner wall of the guide channel (6). A butt hole is provided on one side of the shaped plate (4). The outer wall of the steel keel (5) is fixedly connected to the inner wall of the butt hole.

6. The prefabricated highway bridge structure based on modular replaceable nodes according to claim 1, characterized in that: The outer wall of the vertical cylinder (11) is detachably and fixedly connected to the bottom of the inner wall of the shaped plate (4) by means of the mounting ring (14).

7. The prefabricated highway bridge structure based on modular replaceable nodes according to claim 1, characterized in that: The top of the shaped plate (4) is provided with a slot (21), and the outer wall of the piston rod (12) is movably connected to the inner wall of the slot (21).

8. The prefabricated highway bridge structure based on modular replaceable nodes according to claim 1, characterized in that: The inner wall of the guide channel (6) is fixedly connected to a drain pipe (8), and the top of the drain pipe (8) is connected to a guide bucket (9).

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