A crack repairing and reinforcing device for bridge engineering construction

CN224754930UActive Publication Date: 2026-09-15NANJING TRAFFIC ENG TESTING CO LTD
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Patent Information

Application Number
CN202521797124.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-22
Publication Date
2026-09-15
Estimated Expiration
2035-08-22

AI Technical Summary

Technical Problem

然而,该修复方式存在显著局限——高温沥青难以充分渗透至裂缝深处,导致新旧沥青材料间粘接强度不足

Benefits of technology

1.本实用新型中,将插管锚固钉入裂缝深处,待裂缝内的桥梁材料延伸至插管内部并与插管形成稳固结合后,向注胶钢管内注入修复剂,此时,少量修复剂经由插管顶端渗入其内部,进一步增强插管整体与桥梁基体的结合强度,然后大部分修复剂则从开口位置流出,逐步填充裂缝内部空间,填充完成后,将压条从注胶钢管顶部插入并下压,在压条锁紧两个L形杆后,实现修复剂与钢材的协同固化,显著提升裂缝修复效果,大幅降低该位置发生二次损坏的风险。

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Abstract

The utility model discloses a crack repair reinforcing device for bridge engineering construction, including repair mechanism, compacting mechanism and reinforcing mechanism, the repair mechanism includes glue injection steel pipe, two openings of setting in glue injection steel pipe both sides, the utility model discloses, the pipe inserting anchor is inserted into the crack depth, after the bridge material in the crack extends to the inside of pipe inserting and forms the stable combination with pipe inserting, injects the repairing agent into glue injection steel pipe, at this moment, a small amount of repairing agent penetrates its inside through the pipe inserting top end, further enhances the combination intensity of pipe inserting whole and bridge matrix, then most repairing agent then flows from the opening position, gradually fills the crack internal space, fills up after, and inserts and presses down from the top of glue injection steel pipe, realizes the collaborative solidification of repairing agent and steel after the locking of the two L shaped rods of press strip, significantly improves the crack repair effect, and the risk of secondary damage in this position is greatly reduced.
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Description

Technical Field

[0001] This utility model relates to the field of bridge crack repair technology, specifically a crack repair and reinforcement device for bridge engineering construction. Background Technology

[0002] A bridge is a structure built to allow roads to cross natural or man-made obstacles. Generally speaking, a bridge consists of five major components and five minor components. The five major components are the superstructure and substructure of the bridge span that bear the loads of automobiles or other vehicles and are the guarantee of the bridge's structural safety. The five minor components are the components directly related to the bridge's service function and were formerly known as the bridge deck structure.

[0003] In traditional asphalt pavement crack repair processes, road administration departments typically dispatch technicians to the site for treatment. The standard procedure involves injecting high-temperature asphalt into the crack, followed by leveling using compaction equipment. However, this repair method has significant limitations—the high-temperature asphalt cannot fully penetrate deep into the crack, resulting in insufficient bond strength between the old and new asphalt materials. This weak interface easily leads to repeated cracking or damage in the repaired area, reducing the durability and long-term effectiveness of the repair. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows: A crack repair and reinforcement device for bridge construction includes a repair mechanism, a compaction mechanism, and a reinforcement mechanism. The repair mechanism includes an injection steel pipe, two openings on both sides of the injection steel pipe, and an insert pipe rotatably connected to the bottom end of the injection steel pipe. The compaction mechanism includes a pressure strip inserted into the injection steel pipe through the two openings and a plug screwed to the pressure strip. The reinforcement mechanism includes two L-shaped rods fixed to both sides of the insert pipe and multiple crossbars that transversely penetrate the body of the L-shaped rods.

[0006] By adopting the above technical solution, the insertion tube is anchored deep into the crack. After the bridge material in the crack extends into the insertion tube and forms a stable bond with it, the repair agent is injected into the injection steel pipe. At this time, a small amount of repair agent seeps into the inside of the insertion tube through the top of the insertion tube, further enhancing the overall bonding strength between the insertion tube and the bridge substrate. Then, most of the repair agent flows out from the opening and gradually fills the internal space of the crack. After filling is completed, the pressure strip is inserted from the top of the injection steel pipe and pressed down. After the pressure strip locks the two L-shaped rods, the repair agent and the steel are synergistically cured, which significantly improves the crack repair effect and greatly reduces the risk of secondary damage at this location.

[0007] In a preferred embodiment, the present invention can be further configured such that: the top end of the insertion tube is T-shaped and hollow, the interior of the insertion tube is connected to the interior of the glue-injected steel pipe, and the inner edge of the bottom end of the insertion tube is arc-shaped.

[0008] In a preferred embodiment, the present invention can be further configured such that: both ends of the pressure strip are provided with through holes, the two through holes are respectively located at the top ends of the two L-shaped rods, and the diameter of the through holes is equal to the rod diameter of the L-shaped rods.

[0009] In a preferred embodiment, the present invention can be further configured such that the pressure strip is elongated and made of metal.

[0010] In a preferred embodiment, the present invention can be further configured such that the plug is vertically coaxial with the glue-injecting steel pipe, and the top of the plug is integrally formed with an arc rod.

[0011] In a preferred embodiment, this utility model can be further configured such that: two L-shaped rods are vertically symmetrical about the glue-injecting steel pipe, and both the L-shaped rods and the crossbars are made of steel.

[0012] In a preferred embodiment, the present invention can be further configured such that: the multiple crossbars on the L-shaped rod are equally spaced and arranged in a row, with one row of crossbars close to the bottom end of the L-shaped rod.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. In this utility model, the insertion tube is anchored deep into the crack. After the bridge material in the crack extends into the insertion tube and forms a stable bond with it, the repair agent is injected into the injection steel pipe. At this time, a small amount of repair agent seeps into the insertion tube through the top of the insertion tube, further enhancing the bonding strength between the insertion tube and the bridge substrate. Then, most of the repair agent flows out from the opening and gradually fills the internal space of the crack. After filling, the pressure strip is inserted from the top of the injection steel pipe and pressed down. After the pressure strip locks the two L-shaped rods, the repair agent and the steel are cured together, which significantly improves the crack repair effect and greatly reduces the risk of secondary damage at this location.

[0014] 2. In this utility model, during the compaction process of the repair agent, if the pressure strip cannot descend, the plug is unscrewed, and the repair agent located below the pressure strip overflows from the plug position to the top of the pressure strip. The repair agent seals the top of the pressure strip, forming a vertical structure of repair agent-pressure strip-repair agent, which further improves the repair effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model; Figure 2 This is an exploded view of the overall structure of this utility model; Figure 3This is a schematic diagram of the repair mechanism of this utility model; Figure 4 This is a schematic diagram of the compaction mechanism of this utility model; Figure 5 This is a schematic diagram of the overall structure of the pressure strip after it is lowered.

[0016] Figure label: 100. Repair mechanism; 110. Glue injection steel pipe; 120. Opening; 130. Insertion tube; 200. Compaction mechanism; 210. Pressure strip; 220. Plug; 300. Reinforcing mechanism; 310. L-shaped bar; 320. Crossbar; 400, curved surface. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0018] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0019] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a crack repair and reinforcement device for bridge construction.

[0020] Example 1 Combination Figure 1-5 As shown, the present invention provides a crack repair and reinforcement device for bridge construction, including a repair mechanism 100, a compaction mechanism 200 and a reinforcement mechanism 300. The repair mechanism 100 includes an injection steel pipe 110, two openings 120 on both sides of the injection steel pipe 110, and an insertion tube 130 rotatably connected to the bottom end of the injection steel pipe 110. The compaction mechanism 200 includes a pressure strip 210 that is inserted into the glue injection steel pipe 110 through two openings 120, and a plug 220 that is screwed onto the pressure strip 210. The reinforcing mechanism 300 includes two L-shaped rods 310 fixed to both sides of the insertion tube 130 and a plurality of crossbars 320 extending laterally through the body of the L-shaped rods 310.

[0021] Furthermore, the pressure strip 210 is designed to be elongated and made of metal. The shape of the pressure strip 210 is designed to fill the entire crack and improve the compaction effect of the repair agent.

[0022] Furthermore, the plug 220 is vertically coaxial with the glue-injecting steel pipe 110. The top of the plug 220 is integrally formed with an arc rod. Tightening the plug 220 can improve the density of the repair agent when applying it. Then, unscrewing the plug 220 allows excess repair agent to overflow onto the surface of the pressure strip 210, placing the pressure strip 210 inside the crack. The combination of the repair agent and the steel material then improves the curing effect.

[0023] Furthermore, the two L-shaped rods 310 are vertically symmetrical about the glue-injecting steel pipe 110. Both the L-shaped rods 310 and the crossbars 320 are made of steel. The steel structure formed by the L-shaped rods 310 and the crossbars 320 effectively solidifies the repair agent and reduces the probability of the repair agent cracking from the inside.

[0024] Furthermore, the multiple crossbars 320 on the L-shaped rod 310 are equally spaced and arranged in a row, with one row of crossbars 320 close to the bottom of the L-shaped rod 310. The position design of the L-shaped rod 310 allows the pressure strip 210 to be smoothly inserted into the L-shaped rod 310. After the pressure strip 210 locks the two L-shaped rods 310, the stability of the entire steel structure can be improved.

[0025] Example 2 Combination Figure 2-3 As shown, based on Embodiment 1, the top of the insertion tube 130 is T-shaped and hollow. The interior of the insertion tube 130 is connected to the interior of the glue-injecting steel pipe 110. The inner edge of the bottom of the insertion tube 130 is arc-shaped 400. The structural design of the insertion tube 130 ensures that the repair agent can enter between the insertion tube 130 and the bridge material, thereby improving the firmness of the insertion tube 130.

[0026] Example 3 Combination Figure 1 As shown, in the above embodiment, the pressure strip 210 has through holes at both ends. The two through holes are located at the top ends of the two L-shaped rods 310 respectively. The diameter of the through holes is equal to the rod diameter of the L-shaped rods 310. The through holes provide the pressure strip 210 with the condition to stabilize the two L-shaped rods 310.

[0027] Working principle and usage process of this utility model: When this device is put into actual use, the insertion tube 130 is first anchored deep into the crack. After the bridge material in the crack extends into the insertion tube 130 and forms a stable bond with the insertion tube 130, the repair agent is injected into the glue injection steel pipe 110. At this time, a small amount of repair agent seeps into the interior of the insertion tube 130 through the top of the insertion tube 130, further enhancing the bonding strength between the insertion tube 130 and the bridge substrate; most of the repair agent flows out from the opening 120 and gradually fills the internal space of the crack.

[0028] After filling, insert the pressure strip 210 from the top of the glue-injecting steel pipe 110 and press it down. This pressurization process effectively increases the density of the repair agent in the crack. Then, unscrew the plug 220 and continue to press down the pressure strip 210, forcing the excess repair agent to overflow from the plug 220 position to the top surface of the pressure strip 210 until its surface is evenly covered with repair agent. Finally, under the synergistic curing effect of the repair agent and the steel, the crack repair effect is significantly improved, and the risk of secondary damage at this location is greatly reduced.

[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A crack repair and reinforcement device for bridge construction, characterized in that, include: Repair mechanism (100), the repair mechanism (100) includes a glue injection steel pipe (110), two openings (120) on both sides of the glue injection steel pipe (110), and a tube (130) rotatably connected to the bottom end of the glue injection steel pipe (110); The compaction mechanism (200) includes a pressure strip (210) that is inserted into the glue injection steel pipe (110) through two openings (120) and a plug (220) that is screwed into the pressure strip (210); The reinforcing mechanism (300) includes two L-shaped rods (310) fixed to both sides of the insertion tube (130) and a plurality of crossbars (320) that extend laterally through the body of the L-shaped rods (310).

2. The crack repair and reinforcement device for bridge construction according to claim 1, characterized in that, The top of the insertion tube (130) is T-shaped and hollow. The interior of the insertion tube (130) is connected to the interior of the glue-injected steel pipe (110). The inner edge of the bottom of the insertion tube (130) is arc-shaped (400).

3. The crack repair and reinforcement device for bridge construction according to claim 1, characterized in that, Both ends of the pressure strip (210) are provided with through holes, and the two through holes are located at the top of the two L-shaped rods (310) respectively. The diameter of the through holes is equal to the rod diameter of the L-shaped rods (310).

4. A crack repair and reinforcement device for bridge construction according to claim 1, characterized in that, The pressure strip (210) is elongated and made of metal.

5. A crack repair and reinforcement device for bridge construction according to claim 1, characterized in that, The plug (220) is vertically coaxial with the glue injection steel pipe (110), and the top of the plug (220) is integrally formed with an arc rod.

6. A crack repair and reinforcement device for bridge construction according to claim 1, characterized in that, The two L-shaped rods (310) are vertically symmetrical about the glue-injecting steel pipe (110), and both the L-shaped rods (310) and the crossbar (320) are made of steel.

7. A crack repair and reinforcement device for bridge construction according to claim 1, characterized in that, The multiple crossbars (320) on the L-shaped rod (310) are arranged in a row with equal spacing, and one row of crossbars (320) is close to the bottom of the L-shaped rod (310).