Bridge crack repairing device

Abstract

The utility model provides a bridge crack repairing device which comprises a repairing anchor point, a force application sleeve, a force application bolt, a butt joint port, a one-way valve and an engineering adhesive input port, the force application sleeve is fixedly installed at the bottom end of the repairing anchor point, and the force application bolt is installed in the repairing anchor point in a sliding mode and meshed in the force application sleeve through threads; the repairing anchor point, the force application sleeve and the force application bolt are embedded into a hole punched in a bridge crack; the butt joint opening is meshed with the top of the force application bolt through threads, the one-way valve is fixedly installed on the top of the butt joint opening, and the engineering adhesive input opening is fixedly installed on the top of the one-way valve. Due to the arrangement of the repairing anchor point and the force application bolt, the bridge crack can be effectively sealed, the injected adhesive cannot overflow outwards, and the adhesive can be effectively injected into the bridge crack.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, and in particular to a bridge crack repair device. Background Technology

[0002] In bridge engineering, concrete structures inevitably develop various cracks due to long-term exposure to traffic loads, environmental erosion, and material aging. These cracks not only affect the aesthetics of the structure but also accelerate the development of defects such as steel corrosion and concrete carbonation, seriously threatening the durability and load-bearing safety of bridges. However, existing bridge crack repair devices still have problems such as being unable to effectively seal bridge cracks, and the injected adhesive easily overflowing, failing to effectively inject the adhesive into the bridge cracks.

[0003] Therefore, it is essential to invent a bridge crack repair device. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a bridge crack repair device, which solves the issues that existing bridge crack repair devices still cannot effectively seal bridge cracks, and the injected adhesive easily overflows, failing to effectively inject the adhesive into the bridge crack. A bridge crack repair device includes a repair anchor point, a force-applying sleeve, a force-applying bolt, a mating interface, a one-way valve, and an engineering adhesive inlet. The force-applying sleeve is fixedly installed at the bottom end of the repair anchor point, and the force-applying bolt is slidably installed inside the repair anchor point and threadedly engaged inside the force-applying sleeve. The repair anchor point, force-applying sleeve, and force-applying bolt are embedded in a hole drilled at the bridge crack. The mating interface is threadedly engaged at the top of the force-applying bolt, and the one-way valve is fixedly installed at the top of the mating interface. The engineering adhesive inlet is fixedly installed at the top of the one-way valve.

[0005] The repair anchor point includes a protective base plate, a support sleeve, an expansion plate, and a sealant limiting frame. The support sleeve is fixedly installed at the bottom of the protective base plate, and the expansion plate is fixedly installed at the bottom of the support sleeve. A force-applying sleeve is fixedly installed at the bottom of the expansion plate, and the sealant limiting frame is bonded and fixed to the outside of the protective base plate.

[0006] The force-applying bolt includes a force-applying nut, a hollow screw rod, a bottom-contacting end, a grouting pipe, and a grout outlet. The hollow screw rod is fixedly installed at the bottom of the force-applying nut, and the bottom-contacting end is fixedly installed at the bottom of the hollow screw rod. The grouting pipe is opened inside the force-applying nut, the hollow screw rod, and the bottom-contacting end, and the grout outlet is opened inside the bottom-contacting end, with the grout outlet facing multiple directions.

[0007] The protective base plate inside the repair anchor point is a circular steel sheet, which is fixed to the surface of the bridge crack with nails. This expansion plate can expand outward by the push of the force-applying sleeve and is fixed inside the hole drilled in the bridge crack. The sealing adhesive limiting frame consists of two outwardly extending rubber strips, which are bonded to the outside of the bridge crack. Multiple sets of sealing adhesive limiting frames can be interconnected and melted by open flame to form limiting grooves on the outside of the bridge crack. A layer of cured sealing adhesive is applied between the sealing adhesive limiting frames to completely cover the bridge crack.

[0008] The force-applying bolt can be turned by a wrench to rotate the force-applying nut, causing the hollow screw to move the force-applying sleeve upward and push the expansion plate to expand outward; the hollow screw adopts a set of steel threaded columns with a hole in the middle, and the grouting pipe can be connected to the interface to inject epoxy resin grouting material into it, and flow out from the grout outlet in multiple directions.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The present invention relates to a method for setting up anchor points for repair, wherein a protective base plate is fixed to the crack surface by nails, and a support sleeve is connected to an expansion plate at the bottom. When the force-applying nut of the force-applying bolt rotates, the hollow screw pushes the force-applying sleeve upward, causing the expansion plate to expand radially, thereby achieving mechanical anchoring. The sealing adhesive limiting frame on the outside of the protective base plate melts upon heating to form a sealing groove, which can provide precise positioning for the sealing adhesive, ensuring that the sealing layer evenly covers the crack surface. The fusible nature of the sealing adhesive limiting frame allows multiple sets of limiting frames to be seamlessly spliced, perfectly adapting to various complex crack shapes. The sealing groove formed by the sealing adhesive limiting frame can work with the sealing adhesive to prevent grout leakage, thereby achieving stable repair of the crack.

[0011] 2. The force-applying bolt of this utility model can push the force-applying sleeve to shift and force the expansion plate to expand radially, thus achieving mechanical anchoring. At the same time, the grouting pipe built into the hollow screw forms a pressure grouting channel, allowing epoxy resin to diffuse three-dimensionally from the multi-directional grout outlet at the bottom end to fill the crack. It simultaneously takes into account the fixing of the repair anchor point and the injection of repair epoxy resin. After the repair is completed, the exposed part outside the bridge can be directly cut off to ensure the flatness of the bridge deck. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a structural schematic diagram of the anchor point repair of this utility model.

[0014] Figure 3 This is a structural schematic diagram of the force-applying bolt of this utility model.

[0015] In the picture:

[0016] Repair anchor point 1, protective base plate 11, support sleeve 12, expansion plate 13, sealant limit frame 14, force application sleeve 2, force application bolt 3, force application nut 31, hollow screw 32, bottom contact end 33, grouting pipe 34, grout outlet 35, butt joint 4, one-way valve 5, engineering adhesive inlet 6. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0018] As attached Figure 1 To be continued Figure 3 As shown.

[0019] This utility model provides a bridge crack repair device, including a repair anchor point 1, a force-applying sleeve 2, a force-applying bolt 3, a coupling interface 4, a one-way valve 5, and an engineering adhesive inlet 6. The force-applying sleeve 2 is fixedly installed at the bottom end of the repair anchor point 1, and the force-applying bolt 3 is slidably installed inside the repair anchor point 1 and threadedly engaged inside the force-applying sleeve 2. The repair anchor point 1, the force-applying sleeve 2, and the force-applying bolt 3 are embedded in holes drilled at the bridge cracks. The coupling interface 4 is threadedly engaged at the top of the force-applying bolt 3, and the one-way valve 5 is fixedly installed at the top of the coupling interface 4. The engineering adhesive inlet 6 is fixedly installed at the top of the one-way valve 5.

[0020] The repair anchor point 1 includes a protective base plate 11, a support sleeve 12, an expansion plate 13, and a sealant limiting frame 14. The support sleeve 12 is fixedly installed at the bottom of the protective base plate 11, and the expansion plate 13 is fixedly installed at the bottom of the support sleeve 12. A force-applying sleeve 2 is fixedly installed at the bottom of the expansion plate 13, and the sealant limiting frame 14 is bonded and fixed to the outside of the protective base plate 11.

[0021] The force-applying bolt 3 includes a force-applying nut 31, a hollow screw 32, a bottom-contacting end 33, a grouting pipe 34, and a grout outlet 35. The hollow screw 32 is fixedly installed at the bottom of the force-applying nut 31, and the bottom-contacting end 33 is fixedly installed at the bottom of the hollow screw 32. The grouting pipe 34 is opened inside the force-applying nut 31, the hollow screw 32, and the bottom-contacting end 33, and the grout outlet 35 is opened inside the bottom-contacting end 33, and the grout outlet 35 faces multiple directions.

[0022] The protective base plate 11 inside the repair anchor point 1 is a circular steel sheet, and the protective base plate 11 is fixed to the surface of the bridge crack by nails. The expansion plate 13 can expand outward by the push of the force-applying sleeve 2 and is fixed inside the hole drilled in the bridge crack. The sealing adhesive limiting frame 14 is made of two outwardly extending rubber strips, and the sealing adhesive limiting frame 14 is bonded to the outside of the bridge crack. Multiple sets of sealing adhesive limiting frames 14 can be connected to each other and melted by open flame heating to form limiting grooves on the outside of the bridge crack. A layer of cured sealing adhesive is applied between the sealing adhesive limiting frames 14 and completely covers the bridge crack.

[0023] The force-applying bolt 3 can rotate the force-applying nut 31 with a wrench to cause the hollow screw 32 to drive the force-applying sleeve 2 to move upward, pushing the expansion plate 13 to expand outward; the hollow screw 32 adopts a set of steel threaded columns with a hole in the middle, and the grouting pipe 34 can be connected to the interface 4 to inject epoxy resin grouting material into it, and flow out from the grout outlet 35 in multiple directions.

[0024] This bridge crack repair device achieves permanent repair of cracks through the synergistic action of its components. Its working principle can be divided into three key stages:

[0025] 1. Mechanical Anchoring Stage: Construction workers first drill holes along the crack direction and then embed the repair anchor point 1 into the holes. By rotating the force-applying nut 31 of the force-applying bolt 3, the hollow screw 32 generates axial displacement, pushing the force-applying sleeve 2 to compress the expansion plate 13, causing it to expand radially and forming a mechanical anchoring force. The protective base plate 11 is fixed to the concrete surface with steel nails, providing a supporting base for the entire anchoring system.

[0026] 2. Surface Sealing Stage: The sealant limiting frame 14 is heated and fused to form a continuous sealing groove. Construction workers then inject special sealant into this groove, forming a surface sealing layer with a thickness of 3-5mm. This prevents the injected epoxy resin from flowing out.

[0027] 3. Pressure grouting stage: After anchoring is completed, the grouting equipment is connected through the engineering adhesive inlet 6. Under pressure, epoxy resin enters the grouting pipe 34 through the one-way valve 5. The grout flows along the internal channel of the hollow screw 32 and finally is injected into the crack in a radial pattern from multiple grout outlets 35 at the bottom end 33, achieving three-dimensional filling.

[0028] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A bridge crack repair device, characterized in that: The device includes a repair anchor point (1), a force-applying sleeve (2), a force-applying bolt (3), a mating interface (4), a one-way valve (5), and an engineering adhesive inlet (6), wherein: the force-applying sleeve (2) is fixedly installed at the bottom end of the repair anchor point (1), and the force-applying bolt (3) is slidably installed inside the repair anchor point (1) and engaged inside the force-applying sleeve (2) by threads; the repair anchor point (1), the force-applying sleeve (2), and the force-applying bolt (3) are embedded inside the holes drilled at the cracks in the bridge; the mating interface (4) is engaged at the top of the force-applying bolt (3) by threads, and the one-way valve (5) is fixedly installed at the top of the mating interface (4), and the engineering adhesive inlet (6) is fixedly installed at the top of the one-way valve (5).

2. The bridge crack repair device as described in claim 1, characterized in that: The repair anchor point (1) includes a protective base plate (11), a support sleeve (12), an expansion plate (13), and a sealant limiting frame (14). The support sleeve (12) is fixedly installed at the bottom of the protective base plate (11), and the expansion plate (13) is fixedly installed at the bottom of the support sleeve (12). A force-applying sleeve (2) is fixedly installed at the bottom of the expansion plate (13), and the sealant limiting frame (14) is bonded and fixed to the outside of the protective base plate (11).

3. The bridge crack repair device as described in claim 1, characterized in that: The force-applying bolt (3) includes a force-applying nut (31), a hollow screw (32), a bottom-contacting end (33), a grouting pipe (34), and a grout outlet (35). The hollow screw (32) is fixedly installed at the bottom of the force-applying nut (31), and the bottom-contacting end (33) is fixedly installed at the bottom of the hollow screw (32). The grouting pipe (34) is opened inside the force-applying nut (31), the hollow screw (32), and the bottom-contacting end (33), and the grout outlet (35) is opened inside the bottom-contacting end (33). The grout outlet (35) faces multiple directions.

4. A bridge crack repair device as described in claim 2, characterized in that: The protective base plate (11) inside the repair anchor point (1) is a circular steel metal sheet, and the protective base plate (11) is fixed to the surface of the bridge crack by nails. The expansion plate (13) can expand outward by the push of the force sleeve (2) and be fixed inside the hole drilled at the bridge crack. The sealing glue limiting frame (14) is made of two outwardly extending rubber strips, and the sealing glue limiting frame (14) is bonded to the outside of the bridge crack. Multiple sets of the sealing glue limiting frames (14) can be connected to each other and melted by open flame to form a limiting groove on the outside of the bridge crack. A layer of cured sealing glue is applied between the sealing glue limiting frames (14) and completely covers the bridge gap.

5. A bridge crack repair device as described in claim 3, characterized in that: The force-applying bolt (3) can rotate the force-applying nut (31) with a wrench to make the hollow screw (32) drive the force-applying sleeve (2) to move upward and push the expansion plate (13) to expand outward; the hollow screw (32) adopts a set of steel threaded columns with holes in the middle, and the grouting pipe (34) can be connected to the interface (4) to inject epoxy resin grouting material into it and flow out from the grout outlet (35) in multiple directions.

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