A leakage-proof sealing device for municipal bridge expansion joints

Abstract

The utility model provides a kind of anti-leakage sealing device for municipal bridge expansion joint, and anti-leakage sealing device is integrally installed and fixed between left bridge body (4) and right bridge body (3), and the anti-leakage sealing device includes anti-leakage sealing assembly (1) and mounting block (2);Wherein, mounting block (2) includes left mounting block and right mounting block (201), left mounting block is welded to the inboard of left bridge body (4), right mounting block (201) is welded to the inboard of right bridge body (3), and anti-leakage sealing assembly (1) is buckled and installed and is installed between left mounting block and right mounting block (201) by fixed bolt.The utility model improves the sealing performance and installation stability of expansion joint by optimizing the cooperation structure of anti-leakage sealing assembly and mounting block.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a leak-proof sealing device for expansion joints of municipal bridges. Background Technology

[0002] Bridge expansion joints are usually simply referred to as expansion joints or bridge expansion devices. Each highway bridge requires different expansion joint products to eliminate the damage to bridge components caused by temperature and load. Existing bridge expansion joint structures present challenges in installation when inserting rubber sealing strips between two F-shaped side beams. Similarly, disassembling, maintaining, and replacing the rubber sealing strips also presents difficulties. Furthermore, rubber sealing strips directly inserted into the F-shaped side beams have poor stability; during expansion and contraction, the left and right ends of the rubber sealing strips easily detach from the grooves in the F-shaped side beams, resulting in poor stability of the bridge expansion joint structure.

[0003] Therefore, we propose a leak-proof sealing device for expansion joints of municipal bridges. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present invention provides a leak-proof sealing device for expansion joints of municipal bridges.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A leak-proof sealing device for expansion joints of municipal bridges is provided. The leak-proof sealing device is integrally installed and fixed between the left bridge body 4 and the right bridge body 3. The leak-proof sealing device includes a leak-proof sealing component 1 and an mounting block 2. The mounting block 2 includes a left mounting block and a right mounting block 201. The left mounting block is welded to the inner side of the left bridge body 4, and the right mounting block 201 is welded to the inner side of the right bridge body 3. The leak-proof sealing component 1 is snapped on and installed between the left mounting block and the right mounting block 201 by fixing bolts.

[0006] This utility model also has the following additional technical features: As a further specific optimization of the technical solution of this utility model: a convex suspension block 202 is provided on the top outer side of the right mounting block 201, and a recessed engaging groove 203 is provided between the top of the suspension block 202 and the right mounting block 201; a convex bearing block 205 is provided on the bottom outer side of the right mounting block 201, and a recessed limiting groove 204 is provided between the top of the bearing block 205 and the bottom of the suspension block 202; a recessed fixing groove 206 is also provided on the back of the right mounting block 201, and a separate fixing block 5 is provided in cooperation with the fixing groove 206, and the fixing block 5 is welded to the inner side of the right bridge body 3.

[0007] As a further specific optimization of the technical solution of this utility model: the left mounting block and the right mounting block 201 have a left-right symmetrical structure, and both the left mounting block and the right mounting block 201 are made of stainless steel.

[0008] As a further specific optimization of the technical solution of this utility model: the anti-leakage sealing component 1 includes a U-shaped rubber sealing strip body 101, the top two sides of the rubber sealing strip body 101 are provided with n-shaped hanging grooves 102, the hanging grooves 102 are engaged with the hanging blocks 202; the bottom two sides of the rubber sealing strip body 101 are provided with outwardly protruding limiting blocks 103, the limiting blocks 103 are engaged with the limiting grooves 204; the bottom of the rubber sealing strip body 101 is provided with a sealing base 104, the sealing base 104 is engaged with the bearing block 205.

[0009] As a further specific optimization of the technical solution of this utility model: a hollow cavity 105 is provided between the rubber sealing strip body 101 and the sealing base 104, and antifreeze is filled in the hollow cavity 105.

[0010] As a further specific optimization of the technical solution of this utility model: the rubber sealing strip body 101 is provided with guide grooves 106 on both sides of its surface, and the rubber sealing strip body 101 is provided with a raised reinforcing rib 107 in the middle.

[0011] As a further specific optimization of the technical solution of this utility model: the top two sides of the rubber sealing strip body 101 are provided with through fixing holes 108.

[0012] Compared with the prior art, the advantages of this utility model are: This invention significantly improves the sealing performance and installation stability of expansion joints by optimizing the mating structure of the leak-proof sealing component and the mounting block. The dual-locking design of the suspension groove and the snap-fit ​​groove creates a double lock on the rubber sealing strip body in the vertical direction, effectively avoiding the problem of easy detachment of traditional plug-type sealing strips. The lateral constraint structure of the limiting block and the limiting groove, combined with the vertical support of the sealing base and the bearing block, constructs a three-dimensional fixing system, ensuring that the sealing component remains precisely aligned during bridge expansion and contraction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the anti-leakage sealing device of this utility model; Figure 2 This is a schematic diagram of the structure of the leak-proof sealing component 1 of this utility model; Figure 3 This is a schematic diagram of the mounting block 2 of this utility model; Figure 4 This is a schematic diagram of the right bridge body 3 of this utility model; Explanation of reference numerals in the attached diagram: 1. Leak-proof sealing assembly; 2. Mounting block; 3. Right bridge body. Detailed Implementation

[0014] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0015] A leak-proof sealing device for expansion joints of municipal bridges is provided. The leak-proof sealing device is integrally installed and fixed between the left bridge body 4 and the right bridge body 3. The leak-proof sealing device includes a leak-proof sealing component 1 and an mounting block 2. The mounting block 2 includes a left mounting block and a right mounting block 201. The left mounting block is welded to the inner side of the left bridge body 4, and the right mounting block 201 is welded to the inner side of the right bridge body 3. The leak-proof sealing component 1 is snapped on and installed between the left mounting block and the right mounting block 201 by fixing bolts.

[0016] The left mounting block and the right mounting block 201 have a symmetrical structure, and both the left mounting block and the right mounting block 201 are made of stainless steel.

[0017] The right mounting block 201 has a convex suspension block 202 on its top outer side, and a recessed engaging groove 203 between the top of the suspension block 202 and the right mounting block 201; the right mounting block 201 has a convex bearing block 205 on its bottom outer side, and a recessed limiting groove 204 between the top of the bearing block 205 and the bottom of the suspension block 202; the right mounting block 201 also has a recessed fixing groove 206 on its back, and a separate fixing block 5 is used in conjunction with the fixing groove 206. The fixing block 5 is welded to the inner side of the right bridge body 3.

[0018] During installation, taking the right bridge body 3 as an example, firstly, the fixing block 5 is horizontally welded to the inside of the right bridge body 3. Then, the fixing groove 206 is engaged with the fixing block 5, so that the right mounting block 201 can be suspended as a whole on the fixing block 5. Next, the edge of the right mounting block 201 is welded to the contact point with the right bridge body 3, so that the right mounting block 201 can be firmly fixed to the inside of the right bridge body 3.

[0019] The leak-proof sealing assembly 1 is made entirely of rubber and includes a U-shaped rubber sealing strip body 101. The top two sides of the rubber sealing strip body 101 have n-shaped hanging grooves 102, which engage with hanging blocks 202. The bottom two sides of the rubber sealing strip body 101 have outwardly protruding limiting blocks 103, which engage with limiting grooves 204. The bottom of the rubber sealing strip body 101 has a sealing base 104, which engages with a bearing block 205. The top two sides of the rubber sealing strip body 101 have through-hole fixing holes 108.

[0020] During installation, taking the right axle body 3 as an example, firstly, epoxy resin adhesive can be applied to the engaging groove 203 and the limiting groove 204. The epoxy resin adhesive can effectively bond the stainless steel engaging groove 203 and limiting groove 204 to the rubber anti-leakage sealing component 1. Then, the limiting block 103 is engaged in the limiting groove 204, the suspension groove 102 is engaged in the suspension block 202, and the fixing screw is inserted into the fixing through hole 108 to fix the anti-leakage sealing component 1 to the suspension block 202. The design of the engaging groove 203 and the limiting groove 204, as well as the bonding of the epoxy resin adhesive, can effectively play the role of anti-leakage sealing. The installation design of the fixing screw can also prevent the rubber sealing strip body 101 from detaching from the engaging groove 203.

[0021] A hollow cavity 105 is provided between the rubber sealing strip body 101 and the sealing base 104. The hollow cavity 105 is filled with antifreeze. The addition of antifreeze can make the overall anti-leakage sealing device have the function of noise reduction and vibration damping.

[0022] The rubber sealing strip body 101 has drainage grooves 106 on both sides of its surface. The drainage grooves 106 allow rainwater to drain quickly from the rubber sealing strip body 101.

[0023] The rubber sealing strip body 101 has a raised reinforcing rib 107 in its center. Due to the thermal expansion and contraction of municipal bridges, the expansion joints will increase and decrease in summer and winter. During this time, the rubber sealing strip body 101 will be repeatedly stretched. Mechanical analysis shows that the force on the rubber sealing strip body 101 is concentrated at its center. Therefore, the raised reinforcing rib 107 effectively increases the service life of the center area and prevents cracking and breakage. Simultaneously, the thickness of the sealing base 104 is also increased, further extending its service life and preventing cracking and breakage.

[0024] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

Claims

1. A leak-proof sealing device for expansion joints of municipal bridges, characterized in that: The leak-proof sealing device is installed and fixed between the left bridge body (4) and the right bridge body (3). The leak-proof sealing device includes a leak-proof sealing component (1) and a mounting block (2). The mounting block (2) includes a left mounting block and a right mounting block (201). The left mounting block is welded to the inner side of the left bridge body (4), and the right mounting block (201) is welded to the inner side of the right bridge body (3). The leak-proof sealing component (1) is snapped on and installed between the left mounting block and the right mounting block (201) by fixing bolts.

2. The anti-leakage sealing device for expansion joints of municipal bridges according to claim 1, characterized in that: The right mounting block (201) has a convex suspension block (202) on its top outer side, and a recessed engaging groove (203) between the top of the suspension block (202) and the right mounting block (201); the right mounting block (201) has a convex bearing block (205) on its bottom outer side, and a recessed limiting groove (204) between the top of the bearing block (205) and the bottom of the suspension block (202); the right mounting block (201) also has a recessed fixing groove (206) on its back, and a separate fixing block (5) is provided to cooperate with the fixing groove (206), and the fixing block (5) is welded to the inner side of the right bridge body (3).

3. The anti-leakage sealing device for expansion joints of municipal bridges according to claim 1, characterized in that: The left mounting block and the right mounting block (201) have a symmetrical structure, and both the left mounting block and the right mounting block (201) are made of stainless steel.

4. A leak-proof sealing device for expansion joints of municipal bridges according to claim 1, characterized in that: The leak-proof sealing assembly (1) includes a U-shaped rubber sealing strip body (101), with n-shaped hanging grooves (102) on both sides of the top of the rubber sealing strip body (101), which are engaged with the hanging block (202); and convex limiting blocks (103) on both sides of the bottom of the rubber sealing strip body (101), which are engaged with the limiting groove (204); and a sealing base (104) at the bottom of the rubber sealing strip body (101), which is engaged with the bearing block (205).

5. A leak-proof sealing device for expansion joints of municipal bridges according to claim 4, characterized in that: A hollow cavity (105) is provided between the rubber sealing strip body (101) and the sealing base (104), and antifreeze is filled in the hollow cavity (105).

6. A leak-proof sealing device for expansion joints of municipal bridges according to claim 4, characterized in that: The rubber sealing strip body (101) has guide grooves (106) on both sides of its surface, and a raised reinforcing rib (107) is provided in the middle of the rubber sealing strip body (101).

7. A leak-proof sealing device for expansion joints of municipal bridges according to claim 4, characterized in that: The top two sides of the rubber sealing strip body (101) are provided with through fixing holes (108).

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