Bridge expansion joint waterproof mechanism

Abstract

A bridge expansion joint waterproof mechanism, including flexible seal 1 and elastic seal 2, the both sides of flexible seal 1 are provided with internal support plate 3 respectively, the middle part of elastic seal 2 is door type expansion part 4, the both sides of elastic seal 2 are provided with upper filling block 5 respectively, and elastic seal 2 is located above flexible seal 1;The advantages are: adopting assembly type design, convenient to install, maintenance-free after installation, good waterproof, noise reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of bridge expansion joints, specifically to a waterproofing mechanism for bridge expansion joints. Background Technology

[0002] Currently, the function of bridge expansion joints is to regulate the displacement and connection between the superstructure caused by vehicle loads and bridge construction materials. During operation, expansion joints are required to expand and contract freely in two directions parallel and perpendicular to the bridge axis, be robust and reliable, and allow vehicles to pass smoothly without bumps or noise. They must also prevent rainwater and debris from seeping in and causing blockages. Installation, inspection, maintenance, and debris removal should be simple and convenient. Existing bridge expansion joints are prone to accumulating debris, requiring regular maintenance and cleaning, which incurs high labor costs. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned shortcomings by providing a waterproofing mechanism for bridge expansion joints.

[0004] This utility model includes a flexible sealing element and an elastic sealing element.

[0005] The flexible seal has internal support plates on both sides, the elastic seal has a gate-shaped telescopic part in the middle, and upper filling blocks are provided on both sides of the elastic seal. The elastic seal is located above the flexible seal.

[0006] The flexible seal is an arc-shaped seal, with lower filler blocks on both sides.

[0007] The outer wall of the lower filling block is curved, and the internal support plate is installed on the outer wall of the lower filling block.

[0008] The top of the upper filler block is arc-shaped, and the internal support plate extends upward to cover the upper filler block.

[0009] The top of the portal-type telescopic section is curved.

[0010] A through hole is opened on the upper filling block.

[0011] The ground surface of the elastic seal fits tightly against the top surface of the flexible seal.

[0012] The flexible seal is made of polyurethane material.

[0013] The elastic seal is made of EPDM foamed rubber material.

[0014] The internal support plate is made of stainless steel.

[0015] The advantages of this utility model are: it adopts a prefabricated design, which makes it easy to install; it requires no maintenance after installation; and it has good waterproof and noise reduction effects. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of the present invention installed at the end of a precast beam.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the 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. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, if terms such as "first" or "second" appear in the description of the present invention, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0023] As shown in the attached figure, this utility model includes a flexible sealing element 1 and an elastic sealing element 2.

[0024] The flexible seal 1 has internal support plates 3 on both sides, the elastic seal 2 has a door-shaped telescopic part 4 in the middle, and upper filling blocks 5 are provided on both sides of the elastic seal 2. The elastic seal 2 is located above the flexible seal 1.

[0025] The flexible seal 1 is an arc-shaped seal, and lower filling blocks 6 are provided on both sides of the flexible seal 1.

[0026] The outer wall of the lower filling block 6 is arc-shaped, and the internal support plate 3 is installed on the outer wall of the lower filling block 6.

[0027] The top of the upper filling block 5 is arc-shaped, and the internal support plate 3 extends upward to cover the upper filling block 5.

[0028] The top of the portal-type expansion joint 4 is arc-shaped. When the bridge gap widens, the top of the portal-type expansion joint 4 straightens; when the bridge gap narrows, it contracts back into an arc shape.

[0029] The upper filler block 5 has a deformation through hole 7. When the upper filler block 5 is inserted into the mounting groove, it will undergo compression deformation. The deformation through hole 7 provides compression space, making it easier for the upper filler block 5 to be installed.

[0030] The ground surface of the elastic seal 2 is in close contact with the top surface of the flexible seal 1.

[0031] The flexible seal 1 is made of polyurethane material.

[0032] The elastic seal 2 is made of EPDM foamed rubber material.

[0033] The internal support plate 3 is made of stainless steel.

[0034] Example 1: A precast beam end 100 is provided at the bridge deck joint. Silicone sealant is injected into the mounting groove on the upper part of the precast beam end 100. The flexible sealant 1 is installed into the mounting groove, and the outer wall of the inner support plate 3 is adhered to the silicone sealant. The elastic sealant 2 is inserted into the mounting groove, and the upper filler block 5 is located inside the inner support plate 3. After installation, both the flexible sealant 1 and the elastic sealant 2 can elastically deform as the bridge gap widens or narrows. The elastic sealant 2 serves as a waterproof seal and can also reduce the noise generated by vehicles traveling on the bridge deck.

Claims

1. A waterproofing mechanism for bridge expansion joints, characterized in that... Includes a flexible seal (1) and an elastic seal (2), The flexible seal (1) is provided with internal support plates (3) on both sides, the elastic seal (2) has a door-shaped telescopic part (4) in the middle, and upper filling blocks (5) are provided on both sides of the elastic seal (2). The elastic seal (2) is located above the flexible seal (1).

2. The bridge expansion joint waterproofing mechanism according to claim 1, characterized in that, The flexible seal (1) is an arc-shaped seal, and lower filling blocks (6) are provided on both sides of the flexible seal (1).

3. A bridge expansion joint waterproofing mechanism according to claim 2, characterized in that, The outer wall of the lower filling block (6) is arc-shaped, and the internal support plate (3) is installed on the outer wall of the lower filling block (6).

4. A bridge expansion joint waterproofing mechanism according to claim 3, characterized in that, The top of the upper filling block (5) is arc-shaped, and the internal support plate (3) extends upward to cover the upper filling block (5).

5. A bridge expansion joint waterproofing mechanism according to claim 1, characterized in that, The top of the portal telescopic section (4) is arc-shaped.

6. A bridge expansion joint waterproofing mechanism according to claim 1, characterized in that, A through hole (7) is opened on the upper filling block (5).

7. A bridge expansion joint waterproofing mechanism according to claim 1, characterized in that, The ground surface of the elastic seal (2) is in close contact with the top surface of the flexible seal (1).

8. A bridge expansion joint waterproofing mechanism according to claim 1, characterized in that, The flexible seal (1) is made of polyurethane material.

9. A bridge expansion joint waterproofing mechanism according to claim 1, characterized in that, The elastic seal (2) is made of EPDM foamed rubber material.

10. A bridge expansion joint waterproofing mechanism according to claim 1, characterized in that, The internal support plate (3) is made of stainless steel.

Images