Bridge expansion joint positioning device

Abstract

This utility model discloses a bridge expansion joint positioning device, relating to the field of bridge expansion joint construction technology. It includes a positioning base, a support base, and a bearing platform, integrally fixed from bottom to top. Multiple positioning screws are vertically and equidistantly fixed to the upper end of the bearing platform. A protective structure is provided on the upper side of the bearing platform, including a protective cover plate and multiple protective sleeves. The protective cover plate is fitted and covers the upper surface of the bearing platform, and has multiple through holes that fit one-to-one with the positioning screws. The multiple protective sleeves are respectively fitted onto the outer side of the multiple positioning screws. The protective cover plate of this utility model can prevent concrete from splashing onto the upper surface of the bearing platform during concrete pouring, thereby avoiding subsequent cleaning work and reducing the construction burden. Similarly, the protective sleeves can prevent concrete from splashing onto the surface of the positioning screws during concrete pouring, ensuring smooth nut tightening during the installation of the movable comb teeth.

Description

Technical Field

[0001] This utility model relates to the field of bridge expansion joint construction technology, and in particular to a bridge expansion joint positioning device. Background Technology

[0002] To accommodate the expansion and contraction caused by vehicle load and temperature changes, expansion joints are usually installed at the beam ends, between the beam ends and the abutments, or at the hinged joints of the bridge to ensure smooth vehicle passage without bouncing or noise.

[0003] During the construction of bridge expansion joints, a positioning device is needed to position the movable comb plate. Information about bridge expansion joint positioning devices can be found online, for example, at the website https: / / www.bilibili.com / video / BV15xKRz1ErG / .

[0004] However, the aforementioned bridge expansion joint positioning device requires manual wrapping of the threaded portion of the screw at the top of the device with tape during construction to prevent mud from adhering to the threads. This tape must be removed after the concrete is poured, making the process cumbersome and reducing construction efficiency. Therefore, a bridge expansion joint positioning device is proposed to address these issues. Utility Model Content

[0005] The purpose of this application is to provide a bridge expansion joint positioning device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a bridge expansion joint positioning device, comprising a positioning base, a support base, and a bearing platform that are integrally fixed from bottom to top. The positioning base is provided with multiple reserved installation holes, and multiple positioning screws are integrally and vertically fixed at equal intervals on the upper end of the bearing platform.

[0007] The upper side of the support platform is equipped with a protective structure, which includes a protective cover plate and multiple protective sleeves. The protective cover plate is attached to and covers the upper surface of the support platform, and multiple through holes are provided on the protective cover plate. The multiple through holes are adapted to multiple positioning screws one by one. The multiple protective sleeves are respectively fitted on the outside of the multiple positioning screws. The protective cover plate can prevent concrete from splashing onto the upper surface of the support platform when pouring concrete, thereby avoiding subsequent cleaning work and reducing the construction burden. Similarly, the protective sleeves can prevent concrete from splashing onto the surface of the positioning screws when pouring concrete, ensuring that the nuts can be tightened smoothly when installing the movable comb teeth.

[0008] As a further supplement to this solution, the protective sleeve is integrally fixedly installed at the upper end of the protective cover plate.

[0009] As a further supplement to this solution, the tops of multiple protective sleeves located at the edge of the bearing platform are set to be open, and the inner side of the protective sleeves with open tops is provided with internal threaded sleeves, which are threaded onto the outer side of the positioning screw.

[0010] The tops of the remaining protective sleeves are sealed.

[0011] As a further supplement to this solution, a limiting end cap is fixed to the top of the internal threaded sleeve, and the diameter of the limiting end cap is larger than the outer diameter of the protective sleeve.

[0012] As a further supplement to this solution, a limit slider is integrally fixed on the outer wall of the bottom end of the internal threaded sleeve, and a limit groove is provided on the inner wall of the protective sleeve to be adapted to the sliding of the limit slider.

[0013] As a further supplement to this solution, the internal threaded sleeve and the positioning screw are in a tightened state, and the limiting end cap is in contact with the upper end of the protective sleeve.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] 1. In this utility model, the protective cover plate can prevent concrete from splashing onto the upper surface of the bearing platform during concrete pouring, thereby avoiding subsequent cleaning work and reducing the construction burden; similarly, the protective sleeve can prevent concrete from splashing onto the surface of the positioning screw during concrete pouring, ensuring that the nut tightening operation can be carried out smoothly when installing the movable comb teeth, which is conducive to improving construction efficiency.

[0016] 2. In this utility model, the threaded connection between the internal threaded sleeve and the positioning screw allows the edge of the protective cover plate to fit tightly against the bearing platform, effectively preventing concrete from entering the gap between the bearing platform and the protective cover plate.

[0017] 3. In this utility model, a limiting slider is integrally fixed on the outer wall of the bottom end of the internal threaded sleeve, and a limiting groove is provided on the inner wall of the protective sleeve to slide and adapt to the limiting slider. The limiting groove can limit the limiting slider to the inner side of the protective sleeve, so as to prevent the internal threaded sleeve from detaching from the protective sleeve and being lost. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the three-dimensional structure in the assembled state in this embodiment;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure in the disassembled state in this embodiment;

[0021] Figure 3 This is a cross-sectional view of the protective structure in this embodiment;

[0022] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0023] In the diagram: 1. Positioning base; 2. Support base; 3. Bearing platform; 4. Positioning screw; 5. Protective sleeve; 501. Limiting groove; 6. Protective cover plate; 601. Through hole; 7. Internal threaded sleeve; 8. Limiting end cap; 9. Limiting slider. 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] Example: Reference Figure 1-4 The bridge expansion joint positioning device shown includes a positioning base 1, a support base 2, and a bearing platform 3, which are integrally fixed from bottom to top. The positioning base 1 is provided with multiple reserved installation holes. Multiple positioning screws 4 are integrally fixed vertically at equal intervals on the upper end of the bearing platform 3 for positioning the movable comb teeth and connecting the movable comb teeth.

[0026] To prevent concrete from splashing onto the bearing platform 3 and positioning screws 4 during concrete pouring, a protective structure is provided on the upper side of the bearing platform 3. The protective structure includes a protective cover plate 6 and multiple protective sleeves 5. The protective cover plate 6 is attached to and covers the upper surface of the bearing platform 3, and multiple through holes 601 are provided on the protective cover plate 6. The multiple through holes 601 are adapted to the multiple positioning screws 4 one by one, and the multiple protective sleeves 5 are respectively fitted on the outside of the multiple positioning screws 4.

[0027] The protective cover plate 6 prevents concrete from splashing onto the upper surface of the bearing platform 3 during concrete pouring, thus avoiding subsequent cleaning work and reducing the construction burden; similarly, the protective sleeve 5 prevents concrete from splashing onto the surface of the positioning screw 4 during concrete pouring, ensuring that the nut tightening operation can be carried out smoothly when installing the movable comb teeth.

[0028] Among them, the protective sleeve 5 is integrally fixed on the upper end of the protective cover plate 6. The top of the multiple protective sleeves 5 located at the edge of the bearing platform 3 is set as an open opening, and the inner side of the protective sleeve 5 with the open top is provided with an internal thread sleeve 7. The internal thread sleeve 7 is threaded onto the outer side of the positioning screw 4, and the top of the remaining multiple protective sleeves 5 is sealed.

[0029] The threaded connection between the internal threaded sleeve 7 and the positioning screw 4 allows the edge of the protective cover plate 6 to fit tightly against the bearing platform 3, effectively preventing concrete from entering the gap between the bearing platform 3 and the protective cover plate 6.

[0030] To facilitate the rotation of the internal threaded sleeve 7, a limiting end cap 8 is fixed to the top of the internal threaded sleeve 7. The diameter of the limiting end cap 8 is larger than the outer diameter of the protective sleeve 5.

[0031] In addition, a limiting slider 9 is integrally fixed on the outer wall of the bottom end of the internal threaded sleeve 7, and a limiting groove 501 is provided on the inner wall of the protective sleeve 5 to slide and adapt to the limiting slider 9. The limiting groove 501 can limit the limiting slider 9 to the inner side of the protective sleeve 5, so as to prevent the internal threaded sleeve 7 from detaching from the protective sleeve 5 and being lost.

[0032] In this configuration, the internal threaded sleeve 7 and the positioning screw 4 are in a tightened state, and the limiting end cap 8 is in contact with the upper end of the protective sleeve 5. When pouring concrete, this effectively prevents concrete from splashing into the gap between the internal threaded sleeve 7 and the protective sleeve 5.

[0033] The working principle of this utility model is as follows: After fixing the positioning base 1 with the reserved mounting holes and the existing fixed mounting structure, the protective cover plate 6 is attached to and covers the upper surface of the bearing platform 3. Multiple protective sleeves 5 are respectively fitted on the outside of multiple positioning screws 4. Multiple internal threaded sleeves 7 at the edge of the protective cover plate 6 are tightened on the positioning screws 4 in sequence, so that the edge of the protective cover plate 6 can fit tightly with the bearing platform 3.

[0034] Afterwards, concrete can be poured so that the concrete layer is flush with the upper surface of the bearing platform 3;

[0035] After the pouring is completed, loosen the internal threaded sleeve 7, remove the protective cover plate 6, place the movable comb teeth on the bearing platform 3, and tighten the nuts on the positioning screw 4 so that the movable comb teeth fit tightly with the bearing platform 3.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A bridge expansion joint positioning device, comprising a positioning base (1), a support base (2), and a bearing platform (3) integrally fixedly arranged from bottom to top, characterized in that, The positioning base (1) is provided with multiple reserved installation holes, and the upper end of the bearing platform (3) is vertically fixed with multiple positioning screws (4) at equal intervals; The upper side of the bearing platform (3) is provided with a protective structure, which includes a protective cover plate (6) and multiple protective sleeves (5). The protective cover plate (6) is attached to and covers the upper surface of the bearing platform (3), and multiple through holes (601) are provided on the protective cover plate (6). The multiple through holes (601) are adapted to multiple positioning screws (4) one by one, and the multiple protective sleeves (5) are respectively sleeved on the outside of the multiple positioning screws (4).

2. The bridge expansion joint positioning device according to claim 1, characterized in that: The protective sleeve (5) is integrally fixed to the upper end of the protective cover plate (6).

3. A bridge expansion joint positioning device according to claim 2, characterized in that: The top of a plurality of protective sleeves (5) located at the edge of the bearing platform (3) is set to be open, and the inner side of the protective sleeve (5) with the top set to be open is provided with an internal thread sleeve (7), and the internal thread sleeve (7) is threaded onto the outer side of the positioning screw (4). The tops of the remaining protective sleeves (5) are sealed.

4. A bridge expansion joint positioning device according to claim 3, characterized in that: The top of the internal threaded sleeve (7) is fixed with a limiting end cap (8), the diameter of which is greater than the outer diameter of the protective sleeve (5).

5. A bridge expansion joint positioning device according to claim 4, characterized in that: A limiting slider (9) is integrally fixed on the outer wall of the bottom end of the internal threaded sleeve (7), and a limiting groove (501) is provided on the inner wall of the protective sleeve (5) to slide and adapt to the limiting slider (9).

6. A bridge expansion joint positioning device according to claim 4, characterized in that: The internal threaded sleeve (7) and the positioning screw (4) are in a tightened state, and the limiting end cap (8) is in contact with the upper end of the protective sleeve (5).

Images