Assembly type box culvert grouting template

Abstract

The utility model provides a kind of assembly box culvert grouting template, effectively solve the existing formwork mode cannot be quickly supported on the pit of the box culvert upper portion downward, the problem that formwork is prone to leakage;Its solution technical scheme is, including vertical riser, two elastic fixing modules are in riser, the elastic fixing module includes elastic metal ring, the inverted spine structure of wedge is set on the upper and lower sides of elastic metal ring, horizontal bolt is penetrated in elastic metal ring, nut is in the left side wall of elastic metal ring, bolt is connected with nut by thread, elastic metal ring right side wall and bolt clearance fit, bolt right end penetrates riser and is placed in the right side of riser;The utility model structure is ingenious, can be quickly supported on the pit surface of opening downward, after formwork, can make formwork and pit periphery seal, provide possibility for grouting, formwork efficiency is high, good quality.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated box culvert construction technology, and in particular to a prefabricated box culvert grouting template. Background Technology

[0002] To ensure tight connections between prefabricated box culverts, tensioning recesses are incorporated into the culverts. After tensioning, these recesses are grouted, and finally, the recesses are sealed with cement to ensure a smooth surface for the entire box girder and prevent oxidation and failure of the wire ropes. Current technology often uses traditional formwork supports to fill these recesses. Specifically, because the recesses on the upper side slope downwards, for example... Figure 4 , 5 As shown, pre-drilling is required around the depression, followed by fixing the formwork to the surface using expansion bolts and other fasteners. Then, cement or cement grout is injected, a cumbersome and inefficient process. Furthermore, traditional formwork methods have poor sealing, requiring only cement filling, resulting in a loose interior and excessive air pockets that allow air to enter, affecting the lifespan of the steel wire. Finally, and importantly, due to the poor sealing of traditional methods, grout leakage is common. Therefore, how to quickly and reliably support a leak-proof formwork on the surface of the depression is a key technical problem to be solved in the construction of prefabricated box culverts.

[0003] To address the aforementioned issues, a prefabricated box culvert grouting template is provided. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a prefabricated box culvert grouting template, which effectively solves the problem that the existing formwork support method cannot quickly support the formwork on the downward-facing pit at the top of the box culvert, and that the formwork support is prone to leakage.

[0005] The technical solution includes a vertical plate with two elastic fixing modules. Each elastic fixing module includes an elastic metal ring with wedge-shaped barbs on its upper and lower sides. A horizontal bolt passes through the elastic metal ring. A nut is on the left side wall of the elastic metal ring, and the bolt and nut are connected by threads. The right side wall of the elastic metal ring is clearance-fitted with the bolt, and the right end of the bolt passes through the vertical plate and is positioned on the right side of the vertical plate.

[0006] Furthermore, the elastic metal ring has flat surfaces on its upper and lower sides, and multiple barb structures are provided on the flat surfaces.

[0007] Furthermore, a sealing strip is provided at the edge of the left end face of the template.

[0008] Furthermore, the vertical plate is provided with a slurry inlet and a slurry outlet, wherein the slurry inlet is located on the lower side of the vertical plate and the slurry outlet is located on the upper side of the vertical plate.

[0009] This utility model has a clever structure that can quickly form a mold on the surface of a recess with the opening facing downwards. After the mold is formed, it can seal the mold with the perimeter of the recess, making grouting possible. It has high formwork efficiency and good quality. Attached Figure Description

[0010] Figure 1 This is the front view of the present utility model.

[0011] Figure 2 This is a perspective view of the present utility model.

[0012] Figure 3 This is an exploded view of the present invention.

[0013] Figure 4 This is an installation effect diagram of this utility model.

[0014] Figure 5 This is a schematic diagram of the installation of this utility model. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0016] Depend on Figures 1 to 5 The present invention includes a vertical plate 1 with two elastic fixing modules. Each elastic fixing module includes an elastic metal ring 2 with wedge-shaped barbs on its upper and lower sides. A horizontal bolt 3 passes through the elastic metal ring 2. A nut 4 is on the left side wall of the elastic metal ring 2. The bolt 3 and the nut 4 are connected by threads. The right side wall of the elastic metal ring 2 is clearance-fitted with the bolt 3. The right end of the bolt 3 passes through the vertical plate 1 and is positioned on the right side of the vertical plate 1.

[0017] To increase the friction between the metal ring 2 and the sidewall of the recess, the upper and lower sides of the elastic metal ring 2 are made into planes, and multiple barb structures are provided on the planes.

[0018] To prevent slurry leakage, a sealing strip 5 is provided at the edge of the left end face of the template.

[0019] In order to perform grouting operations into the pit, the vertical plate 1 is provided with a grout inlet and a grout outlet, wherein the grout inlet is located on the lower side of the vertical plate 1 and the grout outlet is located on the upper side of the vertical plate 1.

[0020] In the initial state, such as Figure 1 , 2As shown, during use, the distance between the upper and lower ends of the metal ring 2 is greater than the width of the recess. The barbs allow the metal ring 2 to smoothly enter the recess. When the template is in close contact with the outer edge of the recess, tightening the bolt 3 causes the metal ring 2 and the upright plate 1 to tend to move closer together. However, due to the barbs, the upright plate 1 can be pulled inward by the metal ring 2, making the upright plate 1 fit more closely and seal the outer edge of the recess. At this point, grout can be injected into the grouting port using a grouting machine until the grout emerges from the grout outlet. Then, the grout inlet and outlet are sealed, and the template can be removed after a period of time. Note that the bolt 3 and the metal ring 2 can be left in place to suspend the circuitry or other infrastructure inside the culvert.

[0021] This utility model has a clever structure that can quickly form a mold on the surface of a recess with the opening facing downwards. After the mold is formed, it can seal the mold with the perimeter of the recess, making grouting possible. It has high formwork efficiency and good quality.

Claims

1. A prefabricated box culvert grouting formwork, characterized in that, It includes a vertical plate (1), on which there are two elastic fixing modules. The elastic fixing modules include an elastic metal ring (2), with wedge-shaped barbs on the upper and lower sides of the elastic metal ring (2). A horizontal bolt (3) passes through the elastic metal ring (2), and a nut (4) is on the left side wall of the elastic metal ring (2). The bolt (3) and the nut (4) are connected by threads. The right side wall of the elastic metal ring (2) is clearance-fitted with the bolt (3). The right end of the bolt (3) passes through the vertical plate (1) and is placed on the right side of the vertical plate (1).

2. The prefabricated box culvert grouting formwork according to claim 1, characterized in that, The elastic metal ring (2) is set as a plane on the upper and lower sides, and multiple barb structures are provided on the plane.

3. The prefabricated box culvert grouting formwork according to claim 1, characterized in that, A sealing strip (5) is provided at the edge of the left end face of the template.

4. A prefabricated box culvert grouting formwork according to any one of claims 1 to 3, characterized in that, The vertical plate (1) is provided with a slurry inlet and a slurry outlet, wherein the slurry inlet is located on the lower side of the vertical plate (1) and the slurry outlet is located on the upper side of the vertical plate (1).

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