Quick maintenance type bridge expansion joint

Abstract

The utility model relates to bridge expansion technology field discloses a kind of quick maintenance formula bridge expansion device, including first bridge, the left side of the first bridge is provided with second bridge, the top of the first bridge is provided with expansion component, and the expansion component includes second connecting piece, and the second connecting piece is fixedly connected in the inside of first bridge, slot hole is all opened between the bottom of the first bridge and second bridge. In the utility model, when the bridge expansion due to temperature change, vehicle load and other factors, the first bridge drives second connecting piece displacement, connecting block slides in the sliding slot of expansion block, so that expansion block moves synchronously with second bridge, to realize the elastic expansion of bridge joint, the elastic deformation of waterstop with joint width change, and the gap can prevent rainwater and the like from infiltrating. Expansion block and connecting block, first connecting piece and second connecting piece are connected using standardized interface, and corresponding components can be directly disassembled during maintenance, without the need to replace the overall bridge structure.

Description

Technical Field

[0001] This utility model relates to the field of bridge expansion joint technology, specifically a bridge expansion joint device that requires quick maintenance. Background Technology

[0002] A bridge is generally a structure erected over rivers, lakes, or seas to allow vehicles and pedestrians to pass smoothly. To adapt to the rapidly developing modern transportation industry, the term "bridge" has also been extended to refer to structures built across mountains, challenging geological conditions, or to meet other transportation needs, making travel more convenient. A bridge typically consists of a superstructure, substructure, supports, and ancillary structures.

[0003] Bridge expansion joints are an important component of bridge structures. Their function is to accommodate the displacement of the bridge caused by factors such as temperature changes, concrete shrinkage and creep, and vehicle loads, while ensuring the flatness of the bridge deck and traffic safety.

[0004] The elastic deformation of the joint width fills the gap, allowing rainwater, snowmelt, and corrosive media (such as de-icing salt) to directly seep into the bridge joints, contacting the steel reinforcement, bearings, and other components. Long-term leakage can lead to steel corrosion and concrete carbonization, significantly shortening the bridge's service life.

[0005] To address the aforementioned issues, a rapid-maintenance bridge expansion joint is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a quick-maintenance bridge expansion joint device that solves the problem in the prior art where rainwater, snowmelt, and corrosive media (such as de-icing salt) directly seep into bridge joints and contact the steel reinforcement, supports, and other components due to the elastic deformation of the joint width. Long-term leakage leads to steel corrosion and concrete carbonization, significantly shortening the bridge's service life.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a quick-maintenance bridge expansion joint, comprising a first bridge, a second bridge disposed on the left side of the first bridge, and an expansion joint assembly disposed on the top of the first bridge.

[0008] By adopting the above technical solution, the first bridge and the second bridge are connected by a telescopic component.

[0009] As a further description of the above technical solution: the telescopic component includes a second connector, which is fixedly connected inside the first bridge.

[0010] By adopting the above technical solution, the second connector is fixed inside the first bridge.

[0011] As a further description of the above technical solution: slots are provided between the bottom of the first bridge and the bottom of the second bridge.

[0012] By adopting the above technical solution, the waterstop can be easily fixed through the slot.

[0013] As a further description of the above technical solution: a waterstop is fixedly connected at the bottom between the first bridge and the second bridge.

[0014] By adopting the above technical solution, the waterstop strip drains water through its front and rear ends and is fixed between the first bridge and the second bridge.

[0015] As a further description of the above technical solution: the second bridge is internally fixedly connected with a first connector.

[0016] By adopting the above technical solution, the first connector is fixed inside the second bridge.

[0017] As a further description of the above technical solution: a telescopic block is fixedly connected to the top of the first connector, and the telescopic block is fixedly connected to the second bridge.

[0018] By adopting the above technical solution, the expansion block is fixed by the second bridge and the first connecting member.

[0019] As a further description of the above technical solution: a connecting block is fixedly connected to the top of the second connector, and the connecting block is slidably connected to the telescopic block.

[0020] By adopting the above technical solution, the telescopic block slides on the outer wall of the connecting block, while also having a limit position.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a quick-maintenance bridge expansion joint device. Firstly, when the bridge expands or contracts due to factors such as temperature changes and vehicle loads, the first bridge component moves, causing the second connecting component to shift. The connecting block slides within the groove of the expansion block, allowing the expansion block to move synchronously with the second bridge component. This achieves elastic expansion and contraction at the bridge joint. The waterstop elastically deforms with the joint width, filling the gaps to prevent rainwater infiltration. The expansion block and connecting block, as well as the first and second connecting components, all use standardized interfaces, allowing for direct disassembly of corresponding parts during maintenance without requiring complete replacement of the entire bridge structure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the second connecting member of this utility model.

[0023] In the diagram: 1. First bridge; 2. Waterstop; 3. Groove; 4. Second bridge; 5. Expansion block; 6. Connecting block; 7. First connector; 8. Second connector. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0026] Reference Figures 1-2 This utility model discloses a quick-maintenance bridge expansion joint device, comprising a first bridge 1, a second bridge 4 disposed on the left side of the first bridge 1, and an expansion assembly disposed on the top of the first bridge 1. Through the cooperation of the first bridge 1 and the second bridge 4, and the provision of the expansion assembly, elastic expansion and contraction at the bridge joint is achieved.

[0027] Structure and connection relationship of telescopic components Second connector 8: The telescopic assembly includes a second connector 8, which is fixedly connected inside the first bridge 1. As part of the telescopic assembly, the second connector 8 is fixedly connected to the first bridge 1, providing support for the subsequent installation of the connecting block 6.

[0028] Connecting block 6: A connecting block 6 is fixedly connected to the top of the second connecting member 8, and the connecting block 6 is slidably connected to the telescopic block 5. The connecting block 6 is fixed to the top of the second connecting member 8 and can slide in the groove of the telescopic block 5, so that it moves with the displacement of the first bridge 1 when the bridge expands or contracts.

[0029] First connecting piece 7 and telescopic block 5: A first connecting piece 7 is fixedly connected inside the second bridge 4, and a telescopic block 5 is fixedly connected to the top of the first connecting piece 7, and the telescopic block 5 is fixedly connected to the second bridge 4. The first connecting piece 7 is fixed inside the second bridge 4, and the top is connected to the telescopic block 5, so that the telescopic block 5 and the second bridge 4 form a fixed connection, ensuring that the telescopic block 5 can move synchronously with the second bridge 4.

[0030] Setting of waterstop 2 and groove 3 Waterstop 2: A waterstop 2 is fixedly connected to the bottom of the first bridge 1 and the second bridge 4. The waterstop 2 is fixed between the bottom of the two bridges. When the width of the bridge joint changes, the waterstop 2 undergoes elastic deformation to fill the gap, preventing rainwater, snowmelt and corrosive media from seeping into the bridge joint and avoiding contact with the beam reinforcement, supports and other components, thereby protecting the bridge structure and extending the service life of the bridge.

[0031] Slot 3: Slots 3 are provided between the bottom of the first bridge 1 and the second bridge 4. The slots 3 provide maintenance personnel with an inspection passage, allowing them to directly observe the working status of the internal components of the device, facilitating timely detection of problems and maintenance, and achieving the goal of rapid maintenance.

[0032] Connection methods of each component The expansion block 5 and connecting block 6, as well as the first connecting piece 7 and second connecting piece 8, all use standardized interface connections. This standardized interface connection method allows for direct disassembly of corresponding components during maintenance, eliminating the need to replace the entire bridge structure, greatly improving maintenance efficiency and reducing maintenance costs. Working principle: When the bridge expands or contracts due to factors such as temperature changes and vehicle loads, the first bridge 1 drives the second connecting piece 8 to shift. The connecting block 6 slides within the groove of the expansion block 5, causing the expansion block 5 to move synchronously with the second bridge 4, achieving elastic expansion and contraction at the bridge joint. The sliding cooperation between the expansion block 5 and the connecting block 6 also limits the deviation in displacement direction and absorbs vibration energy. The waterstop 2 elastically deforms with the change in joint width, filling the gap to prevent rainwater from seeping in. The expansion block 5 and the connecting block 6, as well as the first connecting piece 7 and the second connecting piece 8, are all connected using standardized interfaces. Water is drained through both ends of the waterstop 2. During maintenance, the corresponding components can be directly disassembled without replacing the entire bridge structure. The slot 3 also provides an inspection channel for maintenance personnel, allowing them to directly observe the working status of the components and achieve rapid maintenance.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-maintenance bridge expansion joint, comprising a first bridge (1), characterized in that: A second bridge (4) is provided on the left side of the first bridge (1), a telescopic component is provided on the top of the first bridge (1), and a first connector (7) is fixedly connected inside the second bridge (4). The telescopic assembly includes a second connector (8), which is fixedly connected inside the first bridge (1). The top of the first connector (7) is fixedly connected to a telescopic block (5), and the telescopic block (5) is fixedly connected to the second bridge (4). The top of the second connector (8) is fixedly connected to a connecting block (6), and the connecting block (6) is slidably connected to the telescopic block (5).

2. The bridge expansion joint device with rapid maintenance according to claim 1, characterized in that: A slot (3) is provided between the bottom of the first bridge (1) and the second bridge (4).

3. A quick-maintenance bridge expansion joint according to claim 1, characterized in that: A waterstop (2) is fixedly connected at the bottom between the first bridge (1) and the second bridge (4).

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