Bridge joint sealing device for municipal bridges

Abstract

The utility model discloses a bridge joint filling device of municipal bridge, including bridge joint, still include fixed plate, the inside of bridge joint is provided with fixed plate, filling block and compression plate from below to above in proper order, the fixed plate fixed mounting is in the inside bottom end of bridge joint, be provided with hexagon bolt on the compression plate, the hexagon bolt penetrates filling block and connects fixed plate, and the filling block is filled in bridge joint through the extrusion of compression plate. The utility model discloses through setting up fixed plate and compression plate and compressing filling block in bridge joint to make the edge of bridge joint is through filling block and carries out abutment sealing, guarantees the expansion function of bridge joint and realizes normally, can guarantee the stability of filling block installation simultaneously, need not frequent maintenance, through the width of fixed plate and compression plate is set up less than the width of bridge joint, can guarantee that fixed plate and compression plate do not influence the normal expansion function of bridge joint.

Description

Technical Field

[0001] This utility model relates to the field of bridge joint filling technology, specifically a bridge joint filling device for municipal bridges. Background Technology

[0002] In municipal bridge engineering, the size of bridge expansion joints varies depending on factors such as bridge type, design requirements, and environment. Common expansion joint widths in municipal bridges range from 20-120mm, while for bridges with special designs or in areas with significant temperature variations, the gap width may be larger. However, after a bridge is put into use, the expansion joints need to be filled. Without filling, rainwater and debris will directly enter the gaps, corroding steel reinforcement and other components in the bridge structure, affecting its durability and safety. Vibrations from vehicles will also directly affect the gap edges, accelerating structural damage. Therefore, it is necessary to install filling devices in the expansion joints to ensure the normal functioning of the bridge's expansion and contraction while extending its service life.

[0003] In the prior art, utility model patent CN202021323712.4 discloses an elastic filler for bridge expansion joints; it includes an asphalt layer, an insulating filler block embedded in the asphalt layer, and an elastic filler block. The insulating filler block is a closed-cell polyethylene foam board cut into rhombuses or squares, and the elastic filler block is a piece of waste tire cut into rhombuses or squares. The insulating filler block allows the entire filler to have a certain thermal insulation effect, reducing heat conduction between adjacent road surfaces. The elastic filler block provides a certain support capacity, but it is elastic, ensuring that even when this bridge expansion joint elastic filler is subjected to vehicle tire pressure, the elastic filler block will not cause substantial damage to the metal components inside the expansion joint.

[0004] The aforementioned patent provides a filling structure for use in bridge joints. This structure increases the elasticity of the filling blocks by embedding an asphalt layer within the asphalt layer and then embedding insulating and elastic filling blocks within it. However, during bridge use, this filling structure directly uses asphalt for filling. Asphalt is prone to softening and flowing at high temperatures and becoming brittle and cracking at low temperatures, making it difficult to maintain good sealing performance over a long period. This results in a short service life for the filling structure, requiring regular replacement and maintenance, which wastes a significant amount of manpower and time. Utility Model Content

[0005] The purpose of this utility model is to provide a bridge joint filling device for municipal bridges, which aims to improve the problem that the existing bridge expansion joint filling structure directly uses asphalt for filling, which makes it difficult to maintain good sealing performance for a long time, resulting in a short service life of the filling structure.

[0006] This utility model is implemented as follows: a bridge joint filling device for municipal bridges includes a bridge joint and a fixing plate; the fixing plate, a filling block and a pressing plate are arranged sequentially from bottom to top inside the bridge joint; the fixing plate is fixedly installed at the bottom of the bridge joint; a hexagonal bolt is provided on the pressing plate, the hexagonal bolt passes through the filling block and connects to the fixing plate, and the filling block is squeezed and filled into the bridge joint by the pressing plate.

[0007] Preferably, the bridge joint includes a threaded sleeve, and multiple threaded sleeves are sequentially embedded in the bottom of the bridge joint along its length; a fixing screw is provided on the fixing plate corresponding to the position of each threaded sleeve; the fixing screw is threadedly installed in the corresponding threaded sleeve.

[0008] Preferably, the fixing plate includes connecting columns, and a plurality of connecting columns are sequentially arranged on the upper end surface of the fixing plate along its length direction; the filling block is provided with a corresponding mounting through hole at the position of each connecting column, the filling block is located on the fixing plate, and the connecting columns are respectively arranged in the corresponding mounting through holes.

[0009] Preferably, the clamping plate is provided with a corresponding hexagonal bolt at the position of each connecting column, and the upper end face of the connecting column is provided with a bolt hole, and the hexagonal bolt is threaded into the bolt hole.

[0010] Preferably, the clamping plate has a corresponding bolt groove at the position of each connecting column, the upper end of the hexagonal bolt is located in the bolt groove, and the lower end is threaded into the bolt hole; the upper end face of the hexagonal bolt is flush with the upper end face of the clamping plate.

[0011] Preferably, the filling block has a trapezoidal structure; the narrower end of the filling block abuts against the fixing plate, and the wider end abuts against the pressing plate; the width of the upper surface of the filling block is less than the width of the bridge joint, and the height of the filling block is greater than the depth of the bridge joint.

[0012] Preferably, both the fixing plate and the clamping plate are made of stainless steel, and their widths are both smaller than the width of the bridge joint.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a fixing plate and a pressing plate to compress and fill the filler block into the bridge joint, so that the edge of the bridge joint is sealed by the filler block, ensuring the normal expansion and contraction function of the bridge joint, while also ensuring the stability of the filler block installation and eliminating the need for frequent maintenance.

[0015] 2. By setting the width of the fixing plate and the pressing plate to be smaller than the width of the bridge joint, this utility model can ensure that the fixing plate and the pressing plate do not affect the normal expansion and contraction function of the bridge joint. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the compressed structure of the filling block of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the bridge joint of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the fixing plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the fixing plate of this utility model installed in the bridge joint;

[0021] Figure 6 This is a schematic diagram of the structure of the filling block of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the clamping plate of this utility model.

[0023] In the diagram: 1. Bridge joint; 101. Threaded sleeve; 2. Fixing plate; 201. Fixing screw; 202. Connecting column; 203. Bolt hole; 3. Filler block; 301. Mounting through hole; 4. Pressure plate; 401. Hex bolt; 402. Bolt groove. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0026] Example 1

[0027] like Figures 1-5As shown, a bridge joint filling device for municipal bridges includes a bridge joint 1 and a fixing plate 2. The fixing plate 2, filling block 3, and pressing plate 4 are arranged sequentially from bottom to top inside the bridge joint 1. The fixing plate 2 is fixedly installed at the bottom interior of the bridge joint 1. The bridge joint 1 includes threaded sleeves 101, and multiple threaded sleeves 101 are sequentially embedded along the length of the bottom interior of the bridge joint 1. A drilled hole is made at the bottom of the bridge joint 1 using an electric drill, and then the threaded sleeves 101 are embedded inside. The threaded sleeves 101 are made of plastic and have a threaded hole in the middle. A corresponding fixing screw 201 is provided on the fixing plate 2 at the position of each threaded sleeve 101. The fixing screw 201 is threadedly installed in the corresponding threaded sleeve 101. The diameter of the fixing screw 201 is slightly larger than that of the threaded sleeve 101. When the fixing screw 201 is threadedly installed inside the threaded sleeve 101, it will expand the threaded sleeve 101 and tightly fit it into the drilled hole, thereby improving the stability of the fixing screw 201 installation. The filler block 3 has a trapezoidal structure; the narrower end of the filler block 3 abuts against the fixing plate 2, and the wider end abuts against the clamping plate 4; the width of the upper surface of the filler block 3 is smaller than the width of the bridge joint 1, and the height of the filler block 3 is greater than the depth of the bridge joint 1. Both the fixing plate 2 and the clamping plate 4 are made of stainless steel, and their widths are both smaller than the width of the bridge joint 1. The upper base width of the trapezoidal structure of the filler block 3 is smaller than the lower base width. It is made of elastic rubber material, specifically ethylene propylene diene monomer (EPDM) rubber. EPDM rubber has excellent weather resistance, ozone resistance, and chemical corrosion resistance, and can maintain good elasticity and physical properties within a temperature range of -40℃ to 150℃. Even when exposed to ultraviolet rays, wind, rain, and other natural environments for a long time, it is not prone to aging and deformation.

[0028] like Figures 4-7As shown, the clamping plate 4 is equipped with hexagonal bolts 401, which penetrate the filling block 3 and connect to the fixing plate 2. The filling block 3 is pressed and filled into the bridge joint 1 by the clamping plate 4. The fixing plate 2 includes connecting columns 202, and multiple connecting columns 202 are arranged sequentially along its length on the upper end face of the fixing plate 2. The filling block 3 is provided with a corresponding mounting through hole 301 at the position of each connecting column 202. The filling block 3 is located on the fixing plate 2, and the connecting columns 202 are respectively arranged in the corresponding mounting through holes 301. The clamping plate 4 is provided with a corresponding hexagonal bolt 401 at the position of each connecting column 202. The upper end face of the connecting column 202 is provided with a bolt hole 203, and the hexagonal bolt 401 is threaded into the bolt hole 203. The clamping plate 4 has corresponding bolt grooves 402 at the positions of each connecting column 202. The upper end of the hexagonal bolt 401 sits in the bolt groove 402, and the lower end is threaded into the bolt hole 203. The upper end face of the hexagonal bolt 401 is flush with the upper end face of the clamping plate 4. The volume of the filling block 3 has been determined through multiple experiments to ensure that when the clamping plate 4 is installed horizontally with the bridge deck, the filling block 3 can deform and fill the entire bridge joint 1. The depth of the bolt hole 203 inside the connecting column 202 and the length of the hexagonal bolt 401 have been experimentally verified to ensure that the upper end face of the clamping plate 4 is horizontal with the bridge deck. This ensures that the clamping plate 4 can use the hexagonal bolt 401 to drive the filling block 3 to deform and fill the bridge joint 1, and ensures the flatness of the bridge deck.

[0029] Example 2

[0030] like Figures 1-5 As shown, a bridge joint caulking device for municipal bridges includes a bridge joint 1 and a fixing plate 2. The bridge joint 1 is internally arranged with the fixing plate 2, a filling block 3, and a pressing plate 4 arranged sequentially from bottom to top. The fixing plate 2 is fixedly installed at the bottom interior of the bridge joint 1. The bridge joint 1 includes threaded sleeves 101, and multiple threaded sleeves 101 are sequentially embedded along its length at the bottom interior of the bridge joint 1. A corresponding fixing screw 201 is provided on the fixing plate 2 at the position of each threaded sleeve 101. The fixing screw 201 is threaded into the corresponding threaded sleeve 101. The filling block 3 has a trapezoidal structure; the narrower end of the filling block 3 abuts against the fixing plate 2, and the wider end abuts against the pressing plate 4. The width of the upper surface of the filling block 3 is less than the width of the bridge joint 1, and the height of the filling block 3 is greater than the depth of the bridge joint 1. Both the fixing plate 2 and the pressing plate 4 are made of stainless steel, and their widths are both less than the width of the bridge joint 1.

[0031] like Figures 4-7As shown, the clamping plate 4 is equipped with hexagonal bolts 401, which penetrate the filling block 3 and connect to the fixing plate 2. The filling block 3 is pressed and filled into the bridge joint 1 by the clamping plate 4. The fixing plate 2 includes connecting columns 202, and multiple connecting columns 202 are arranged sequentially along its length on the upper end face of the fixing plate 2. The filling block 3 is provided with a corresponding mounting through hole 301 at the position of each connecting column 202. The filling block 3 is located on the fixing plate 2, and the connecting columns 202 are respectively arranged in the corresponding mounting through holes 301. The clamping plate 4 is provided with a corresponding hexagonal bolt 401 at the position of each connecting column 202. The upper end face of the connecting column 202 is provided with a bolt hole 203, and the hexagonal bolt 401 is threaded into the bolt hole 203. The clamping plate 4 has a corresponding bolt groove 402 at the position of each connecting column 202. The upper end of the hexagonal bolt 401 is located in the bolt groove 402, and the lower end is threaded into the bolt hole 203. The upper end face of the hexagonal bolt 401 is flush with the upper end face of the clamping plate 4.

[0032] The working principle of this utility model is as follows: First, a drill hole is made at the bottom of the bridge joint 1 using an electric drill. Then, a threaded sleeve 101 is inserted into it. The threaded sleeve 101 is made of plastic and has a threaded hole in the middle. The diameter of the fixing screw 201 is slightly larger than that of the threaded sleeve 101. When the fixing screw 201 is threaded inside the threaded sleeve 101, it will open up the threaded sleeve 101 and tightly fit it into the drill hole, thereby improving the stability of the fixing screw 201 installation. Then, the filler block 3 is placed on the fixing plate 2, and the connecting post 202 on the fixing plate 2 is aligned with the mounting through hole 301 of the filler block 3. Then, the clamping block is installed on the upper end face of the filler block 3 by the hexagonal bolt 401. As the hexagonal bolt 401 is installed on the connecting post 202, it drives the clamping plate 4 to compress the filler block 3. The volume of the filler block 3 can be determined through multiple experiments to ensure that when the clamping plate 4 is installed horizontally with the bridge deck, the filler block 3 can deform and fill the entire bridge joint 1. Until the clamping plate 4 is horizontal with the bridge deck, the upper end of the hexagonal bolt 401 is placed in the bolt groove 402 of the clamping plate 4, which will not affect the normal driving of the vehicle.

[0033] In summary, this utility model uses a fixing plate 2 and a pressing plate 4 to compress and fill the filler block 3 into the bridge joint 1, thereby sealing the edge of the bridge joint 1 with the filler block 3, ensuring the normal expansion and contraction function of the bridge joint 1, and ensuring the stability of the filler block 3 installation without frequent maintenance; by setting the width of the fixing plate 2 and the pressing plate 4 to be smaller than the width of the bridge joint 1, it can be ensured that the fixing plate 2 and the pressing plate 4 do not affect the normal expansion and contraction function of the bridge joint 1.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bridge joint sealing device for municipal bridges, comprising a bridge joint (1), characterized in that, It also includes a fixing plate (2); the bridge joint (1) is provided with a fixing plate (2), a filling block (3) and a pressing plate (4) from bottom to top; the fixing plate (2) is fixedly installed at the bottom of the bridge joint (1); the pressing plate (4) is provided with a hexagonal bolt (401), the hexagonal bolt (401) passes through the filling block (3) and connects to the fixing plate (2), and the filling block (3) is squeezed and filled into the bridge joint (1) by the pressing plate (4).

2. The bridge joint sealing device for municipal bridges according to claim 1, characterized in that, The bridge joint (1) includes a threaded sleeve (101), and multiple threaded sleeves (101) are sequentially embedded in the bottom of the bridge joint (1) along its length direction; a fixing screw (201) is provided on the fixing plate (2) corresponding to the position of each threaded sleeve (101); the fixing screw (201) is threaded in the corresponding threaded sleeve (101).

3. A bridge joint sealing device for municipal bridges according to claim 1, characterized in that, The fixing plate (2) includes connecting posts (202), and multiple connecting posts (202) are arranged sequentially along the length direction on the upper end surface of the fixing plate (2); the filling block (3) is provided with a corresponding mounting through hole (301) at the position of each connecting post (202), the filling block (3) is located on the fixing plate (2), and the connecting posts (202) are respectively arranged in the corresponding mounting through holes (301).

4. A bridge joint sealing device for municipal bridges according to claim 3, characterized in that, The clamping plate (4) is provided with a corresponding hexagonal bolt (401) at the position of each connecting column (202). The upper end face of the connecting column (202) is provided with a bolt hole (203), and the hexagonal bolt (401) is threaded into the bolt hole (203).

5. A bridge joint sealing device for municipal bridges according to claim 4, characterized in that, The clamping plate (4) has a corresponding bolt groove (402) at the position of each connecting column (202). The upper end of the hexagonal bolt (401) is located in the bolt groove (402), and the lower end is threaded in the bolt hole (203). The upper end face of the hexagonal bolt (401) is flush with the upper end face of the clamping plate (4).

6. A bridge joint sealing device for municipal bridges according to claim 1, characterized in that, The filling block (3) has a trapezoidal structure; the narrower end of the filling block (3) abuts against the fixing plate (2), and the wider end abuts against the pressing plate (4); the width of the upper surface of the filling block (3) is less than the width of the bridge joint (1), and the height of the filling block (3) is greater than the depth of the bridge joint (1).

7. A bridge joint sealing device for municipal bridges according to claim 6, characterized in that, Both the fixing plate (2) and the clamping plate (4) are made of stainless steel, and their widths are smaller than the width of the bridge joint (1).

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