Mortar leakage prevention device for prefabricated box girder

Abstract

The utility model discloses a prefabricated box girder slurry leakage prevention device which comprises a box girder end and a standard box girder, flanges are fixedly arranged on the two sides of the upper portion of the box girder end and the two sides of the upper portion of the standard box girder, a sealing plate is arranged on the inner side of the splicing position of the box girder end and the standard box girder, and a leakage prevention rib is fixedly arranged at the end, close to the standard box girder, of the box girder end. A sealing groove is formed in the opposite position of one end of the standard box girder, and the anti-seepage rib is meshed with the sealing groove. The utility model has the advantage of no slurry leakage in the construction process.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated box beams, in particular to a slurry leakage prevention device for prefabricated box beams. Background Art

[0002] Prefabricated box girders are commonly used reinforced concrete components in bridge construction. They are prefabricated in factories or prefabrication plants and then transported to the construction site for assembly. The interior of the prefabricated box girder is hollow, with flanges on both sides of the upper part. It is shaped like a box, hence the name. It has the advantages of short production cycle, controllable quality, and fast construction speed. It is widely used in highways, bridges, rail transportation and construction. The main function of prefabricated box girders is to bear loads and disperse local loads to ensure the durability and stability of the structure.

[0003] In the traditional construction process of prefabricated box girders, leakage often occurs at the joints between the box girder ends and the standard box girders. Traditional methods usually use cement mortar or rubber stop tape for sealing, but these methods have problems such as poor sealing effect and poor durability, which leads to the slurry easily leaking from the joint gap during the concrete pouring process, affecting the structural quality and construction efficiency. Utility Model Content

[0004] The utility model aims to provide a prefabricated box girder anti-slurry leakage device in order to solve the common problem of easy slurry leakage during the construction process of prefabricated box girders.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: it includes a box beam end and a standard box beam, flanges are fixedly provided on both sides of the upper part of the box beam end and the standard box beam, a closing plate is provided on the inner side of the joint between the box beam end and the standard box beam, an anti-leakage rib is fixedly provided at one end of the box beam end close to the standard box beam, a closed groove is provided at a relative position of one end of the standard box beam, and the anti-leakage rib is meshed with the closed groove.

[0006] Furthermore, the closing plate includes three folding plates, and both sides of the top of the three folding plates are fixed with limiting embedded blocks, and the limiting embedded blocks are embedded in the end of the box beam and the inner wall of the standard box beam. Both sides of the bottom of the three folding plates are fixed with sealing embedded blocks, and the sealing embedded blocks are embedded in the end of the box beam and the bottom wall of the standard box beam.

[0007] Furthermore, the box beam end and the bottom wall and inner walls on both sides of the standard box beam are provided with interconnected embedding grooves, and the closing plate is embedded in the embedding grooves and fixed by screws.

[0008] Furthermore, the anti-leakage rib is designed in a semi-cylindrical shape.

[0009] Furthermore, a square snap-in strip is provided below the anti-leakage rib, a snap-in groove is provided at the bottom of the standard box beam, and the snap-in strip and the snap-in groove are meshed with each other.

[0010] Furthermore, the box girder end is connected to the standard box girder via tension bolts.

[0011] Beneficial effects: The utility model has reasonable design and has the following beneficial effects:

[0012] 1. In the scheme of the utility model, an efficient sealing system is formed through the ingenious design of the closing plate, the anti-leakage ribs and the closed groove, which can effectively prevent the slurry from seeping out from the joint gap during the concrete pouring process, which not only greatly improves the manufacturing quality of the prefabricated box girder, but also avoids rework and material waste caused by slurry leakage, thereby reducing production costs;

[0013] 2. In the solution of the utility model, the closing plate adopts a three-sided folding plate design, and the use of a limit embedded block and a sealing embedded block makes the connection strength and sealing between the closing plate and the inner wall of the box beam significantly enhanced, which not only optimizes the stability of the closing plate, but also improves the reliability of the anti-leakage effect;

[0014] 3. In the present invention, the semi-cylindrical design of the anti-leakage rib can not only better mesh with the closed groove to form a tighter sealing effect, but also increase the contact area of ​​the meshing surface, thereby improving the reliability of the anti-leakage slurry;

[0015] 4. In the present invention, the mutual engagement between the square snap-in strip and the snap-in groove further enhances the stability and sealing of the joint, thus ensuring the integrity and safety of the entire prefabricated box girder structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded view of the structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the box girder end structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of local A of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of local B of the utility model;

[0020] Figure 5 It is a schematic diagram of the local structure of the closing plate of the utility model.

[0021] In the figure: 1-box girder end, 2-standard box girder, 3-flange, 4-closing plate, 5-anti-leakage rib, 6-sealed groove, 7-embedded groove, 8-clamping strip, 9-clamping groove;

[0022] 41-three-sided folding plate, 42-limiting embedded block, 43-sealing embedded block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Combination Figures 1 to 5 A prefabricated box girder anti-leakage grouting device is shown, comprising a box girder end 1 and a standard box girder 2, flanges 3 are fixedly provided on both sides of the upper parts of the box girder end 1 and the standard box girder 2, a closing plate 4 is provided on the inner side of the joint between the box girder end 1 and the standard box girder 2, an anti-leakage rib 5 is fixedly provided at one end of the box girder end 1 close to the standard box girder 2, a closed groove 6 is provided at a relative position at one end of the standard box girder 2, the anti-leakage rib 5 and the closed groove 6 are meshed with each other, and a sealing system is formed by utilizing the closing plate 4 and the meshing of the anti-leakage rib 5 with the closed groove 6, which can effectively prevent the slurry from seeping out of the joint gap during the concrete pouring process.

[0025] The closing plate 4 includes three folding plates 41, and both sides of the top of the three folding plates 41 are fixed with limiting embedded blocks 42, and the limiting embedded blocks 42 are embedded in the inner wall of the box beam end 1 and the standard box beam 2. Both sides of the bottom of the three folding plates 41 are fixed with sealing embedded blocks 43, and the sealing embedded blocks 43 are embedded in the bottom wall of the box beam end 1 and the standard box beam 2. The design of the three folding plates 41 enables the closing plate 4 to more comprehensively cover the gap at the joint, and the setting of the limiting embedded blocks 42 and the sealing embedded blocks 43 further enhances the connection strength and sealing between the closing plate 4 and the inner wall of the box beam, which not only ensures the stability of the closing plate 4, but also improves the anti-leakage effect of the box beam.

[0026] The box girder end 1 is provided with interconnected embedding grooves 7 on the bottom wall and the inner walls on both sides of the standard box girder 2. The closing plate 4 is embedded in the embedding grooves 7 and fixed with screws. By providing the embedding grooves 7 on the bottom wall and the inner walls on both sides of the box girder, and embedding the closing plate 4 therein and fixing it with screws, the installation accuracy and reliability of the closing plate 4 are improved.

[0027] The anti-leakage rib 5 is designed in a semi-cylindrical shape. The semi-cylindrical anti-leakage rib 5 can better engage with the closed groove 6 to form a tighter sealing effect. At the same time, this shape design also increases the contact area of ​​the engaging surface and improves the reliability of the anti-leakage slurry.

[0028] A square clip strip 8 is provided below the anti-leakage rib 5, and a clip groove 9 is provided at the bottom of the standard box girder 2. The clip strip 8 and the clip groove 9 engage with each other. A square clip strip 8 is additionally provided below the box girder end 1, and engages with the clip groove 9 at the bottom of the standard box girder 2, thereby further enhancing the stability and sealing of the joint.

[0029] The box girder end 1 is connected to the standard box girder 2 by tension bolts.

[0030] Working principle: During use, the utility model aligns and assembles the box girder end 1 and the standard box girder 2 and connects them through tension bolts. At this time, the cylindrical anti-leakage ribs 5 can engage with the closed groove 6 to form a tight sealing effect, and then the closing plate 4 is embedded in the embedding groove 7 and fixed by screws. The limiting embedding block 42 and the sealing embedding block 43 are inserted into the box girder end 1 and the standard box girder 2 for fixation, forming a sealing system that can effectively prevent the slurry from seeping out of the joint gap during the concrete pouring process.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A prefabricated box girder anti-leakage device, comprising a box girder end (1) and a standard box girder (2), wherein flanges (3) are fixedly provided on both sides of the upper part of the box girder end (1) and the standard box girder (2), and characterized in that: A closing plate (4) is provided on the inner side of the joint between the box girder end (1) and the standard box girder (2); an anti-leakage rib (5) is fixedly provided at one end of the box girder end (1) close to the standard box girder (2); a closed groove (6) is provided at a relative position at one end of the standard box girder (2); and the anti-leakage rib (5) and the closed groove (6) are meshed with each other.

2. The device for preventing grout leakage of a prefabricated box beam according to claim 1, characterized in that: The closing plate (4) comprises three folding plates (41), both sides of the top of the three folding plates (41) are fixedly provided with limiting embedded blocks (42), the limiting embedded blocks (42) are embedded in the box beam end (1) and the inner wall of the standard box beam (2), and both sides of the bottom of the three folding plates (41) are fixedly provided with sealing embedded blocks (43), the sealing embedded blocks (43) are embedded in the box beam end (1) and the bottom wall of the standard box beam (2).

3. The device for preventing grout leakage of a prefabricated box beam according to claim 2, characterized in that: The box beam end (1) and the bottom wall and the inner walls on both sides of the standard box beam (2) are provided with interconnected embedding grooves (7), and the closing plate (4) is embedded in the embedding grooves (7) and fixed by screws.

4. The device for preventing grout leakage of prefabricated box beams according to claim 3 is characterized in that: The anti-leakage rib (5) is designed in a semi-cylindrical shape.

5. The device for preventing grout leakage of prefabricated box beams according to claim 4 is characterized in that: A square clamping strip (8) is provided below the anti-leakage rib (5), a clamping groove (9) is provided at the bottom of the standard box beam (2), and the clamping strip (8) and the clamping groove (9) are meshed with each other.

6. The device for preventing grout leakage of a prefabricated box beam according to claim 5, characterized in that: The box beam end (1) is connected to the standard box beam (2) via tension bolts.

Images