Arc-shaped expansion joint

Abstract

The utility model relates to an arc line expansion joint, including two edge beams, a plurality of anchor plates and a sealing strip, a plurality of anchor plates set up respectively in the outside of two edge beams, the edge beam includes the side plate with the top plate, the front and back of side plate all are provided with the clamping slot, the surface of top plate is equipped with the metal sheet, the surface of metal sheet is equipped with the convex, the top plate is located the top of side plate and has reserved the sealant installation groove between, through the edge beam design is the side plate with the top plate, and the top plate is handled with the side plate between using the metal sheet and the convex realization clamping and connects, makes its side plate and top plate form sealant installation groove between, to be more favorable to the staff between sealing strip and this edge beam carries out the installation operation, does not need to utilize external auxiliary tool to complete the installation dismounting operation when installation operation, makes the installation dismounting operation between this expansion joint and sealing strip more simple and convenient, saves time and labour, and the whole practicality is stronger.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to an arc-shaped expansion joint. Background Technology

[0002] Expansion joints are joints installed between the ends of two beams, between the beam end and the abutment, or at the hinged joints of a bridge to accommodate the deformation of the bridge deck. Their main function is to ensure that the bridge structure can freely expand and contract under the influence of factors such as temperature changes, concrete shrinkage and creep, and vehicle loads, while preventing rainwater and debris from seeping into the bridge structure, thus avoiding damage to the bridge structure and extending the service life of the bridge.

[0003] Common bridge expansion joints include butt joint type, steel-supported type, combined shear type (plate type), modular support type and seamless type. Among them, butt joint type expansion joints are generally used for small and medium span bridges. They are simple in structure and low in cost. However, during the assembly process of existing butt joint type expansion joints, it is difficult to completely embed the rubber sealing strip between the edge beams. External auxiliary tools such as pry bars are always required to assist in the installation and disassembly, which is time-consuming, labor-intensive and inefficient. Utility Model Content

[0004] Based on the above description, this utility model provides an arc-shaped expansion joint to solve the problem that it is difficult to securely embed the rubber sealing strip between the rubber sealing strip and the side beam during the assembly of existing expansion joints.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: an arc-shaped expansion joint includes two side beams, several anchor plates and a sealing strip. Several anchor plates are respectively arranged on the outside of the two side beams. The side beam includes a side plate and a top plate. The front and back of the side plate are provided with slots. The surface of the top plate is provided with a metal plate. The surface of the metal plate is provided with protrusions. The top plate is located above the side plate and a sealant installation groove is reserved between them.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the surface of the sealing strip has several openings, and the top surface of the side plate has a protruding rod that extends into the opening, which can restrict the position between the sealing strip and the side plate and facilitate snap-fit ​​installation.

[0008] Furthermore, both the front and back sides of the side plate are provided with vertically oriented limiting grooves, and the metal plate protrudes into the limiting grooves, which can restrict the position of the side plate and the top plate, and facilitate the interlocking of the protrusions with the slots provided on the side plate.

[0009] Furthermore, the protrusion is designed in a trapezoidal structure, which allows the inclined surface of the protrusion to force the metal plate to undergo elastic deformation when subjected to force, eliminating the need for manual pressure application.

[0010] Furthermore, the edges and corners of the protrusions are all rounded, and the surfaces of the protrusions and the side beams are all made smooth, making the sliding of the protrusions into contact with the surface of the side plate smoother.

[0011] Furthermore, a pressure-applying space is reserved between the bottom surface of the metal plate and the side plate, which facilitates the staff to apply pressure to the metal plate through the pressure-applying space.

[0012] Furthermore, the metal plate is an elastic metal steel plate, which allows the metal plate to automatically recover when subjected to large deformation, avoiding the phenomenon of deformation and fixation.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. By designing the edge beam as a side plate and a top plate, and using a metal plate and protrusions to interlock the top plate and the side plate, a sealant installation groove is formed between the side plate and the top plate. This makes it easier for workers to install the sealing strip to the edge beam. No external auxiliary tools are needed to complete the installation and disassembly operations, making the installation and disassembly of the expansion joint and the sealing strip simpler, more convenient, time-saving, labor-saving, and more practical overall.

[0014] 2. By setting insert rods on the side plate and opening corresponding openings on the sealing strip, the position of the sealing strip can be effectively restricted by the cooperation between the insert rods and the openings. This makes the position of the sealing strip and the side plate more stable when the workers are installing between the top plate and the side plate, ensuring the positional relationship between the sealing strip and the expansion joint after installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a partial bottom view of the sealing strip of this utility model; Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0016] The attached diagram lists the components represented by each number as follows: 1. Side beam; 11. Side plate; 111. Slot; 112. Insert rod; 113. Limiting slot; 12. Top plate; 121. Metal plate; 1211. Protrusion; 13. Mounting slot; 2. Anchor plate; 3. Sealing strip; 31. Opening. Detailed Implementation

[0017] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0019] Example Please refer to Figures 1-4 This embodiment provides an arc-shaped expansion joint, including two arc-shaped side beams 1, multiple anchor plates 2, and a sealing strip 3. The multiple anchor plates 2 are fixedly connected to the outer side of the two side beams 1 at equal intervals. The side beam 1 includes a side plate 11 and a top plate 12. The front and back of the side plate 11 are provided with slots 111. The surface of the top plate 12 is fixedly connected with a metal plate 121 along the vertical direction. The metal plate 121 is an elastic metal steel plate. The surface of the metal plate 121 is fixedly connected with protrusions 1211. The top plate 12 is located above the side plate 11 and a sealant installation groove 13 is reserved between them. The sealing strip 3 is snapped between the two sealant installation grooves 13 to prevent moisture from seeping into the interior of the bridge or building structure.

[0020] In this embodiment, the sealing strip 3 to be installed is placed between the top surfaces of the two side plates 11. Then, the top plate 12 is moved vertically downward above the side plates 11. The protrusion 1211 first contacts the surface of the side plate 11, and the metal plate 121 undergoes elastic deformation under pressure when it receives the extrusion pressure. Then, the pressure is continuously applied downward until the protrusion 1211 is engaged in the slot 111 opened in the side plate 11. Thus, the sealing strip 3 is restricted through the cooperation between the top plate 12 and the side plate 11.

[0021] As an optional implementation method, please refer to Figures 1-5 The surface of the sealing strip 3 has multiple openings 31, and the top surface of the side plate 11 has a rod 112 protruding into the opening 31.

[0022] In this embodiment, when the sealing strip 3 is placed between the two side plates 11, the insertion rod 112 is aligned with the opening 31 so that the insertion rod 112 is inserted into the opening 31. This effectively utilizes the insertion rod 112 to restrict the position between the sealing strip 3 and the side plates 11, which is more conducive to the top plate 12 and the side plates 11 restricting the sealing strip 3.

[0023] As an optional implementation method, please refer to Figure 4 The side plate 11 has a limiting groove 113 on both the front and back sides along the vertical direction. The limiting groove 113 is adapted to the diameter of the metal plate 121, and the metal plate 121 protrudes into the limiting groove 113.

[0024] In this embodiment, the metal plate 121 is inserted into the limiting groove 113. The limiting groove 113 with an appropriate diameter restricts the left and right directions of the metal plate 121, which is more conducive to the docking of the protrusion 1211 and the slot 111.

[0025] As an optional implementation method, please refer to Figure 4 The protrusion 1211 has a trapezoidal structure design, and the corners of the protrusion 1211 are all rounded. The surfaces of the protrusion 1211 and the side beam 1 are all smooth.

[0026] In this embodiment, when the top plate 12 and the side plate 11 are connected, the top plate 12 is pressed downwards, and the inclined surface of the protrusion 1211 can first contact the surface of the side plate 11. The metal plate 121 is elastically deformed by the extrusion force, which eliminates the need for manual pressure adjustment by the staff and makes it more convenient.

[0027] As an optional implementation method, please refer to Figure 1 and Figure 4 A pressure-applying space is reserved between the bottom surface of the metal plate 121 and the side plate 11.

[0028] In this embodiment, the pressure space reserved between the metal plate 121 and the side plate 11 makes it easier for workers to apply pressure to the metal plate 121 through this pressure space, thereby facilitating the disassembly of the side beam 1 and the maintenance and replacement of the sealing strip 3.

[0029] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An arcuate expansion joint, characterized by: It includes two side beams (1), several anchor plates (2) and a sealing strip (3). Several anchor plates (2) are respectively set on the outside of the two side beams (1). The side beam (1) includes a side plate (11) and a top plate (12). The front and back of the side plate (11) are provided with slots (111). The surface of the top plate (12) is provided with a metal plate (121). The surface of the metal plate (121) is provided with a protrusion (1211). The top plate (12) is located above the side plate (11) and a sealant installation groove (13) is reserved between them.

2. The arc-shaped expansion joint according to claim 1, wherein: The sealing strip (3) has several openings (31) on its surface, and the top surface of the side plate (11) has a rod (112) protruding into the opening (31).

3. The arc-shaped expansion joint according to claim 1, wherein: The side plate (11) has a limiting groove (113) on both the front and back sides along the vertical direction, and the metal plate (121) protrudes into the limiting groove (113).

4. The arcuate expansion joint of claim 1, wherein: The protrusion (1211) has a trapezoidal structure design.

5. The arc-shaped expansion joint according to claim 1, characterized in that: The corners of the protrusion (1211) are all rounded, and the surfaces of the protrusion (1211) and the side beam (1) are both smooth.

6. The arc-shaped expansion joint according to claim 1, characterized in that: A pressure-applying space is reserved between the bottom surface of the metal plate (121) and the side plate (11).

7. The arc-shaped expansion joint according to claim 1, characterized in that: The metal plate (121) is an elastic metal steel plate.

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