An installation device for overturning resistance reinforcement of single-column pier bridges

Abstract

This utility model relates to an installation device for reinforcing single-column pier bridges against overturning, belonging to the field of bridge reinforcement technology. The installation device includes: two semi-circular clamps aligned and fitted together; a reinforcement installation mechanism comprising a regular hexagonal mounting frame fixedly connected to one end of one of the semi-circular clamps; through the cooperation of a guide block, guide post, and the inclined surface of a guide groove, disassembly only requires inserting an internal hexagonal sleeve to automatically release the locking of the positioning strip on the flange nut, achieving rapid release of pre-tightening force without tools; this design avoids damage to the bolt threads; the spring is made of rubber, ensuring the reset thrust of the positioning strip while reducing the risk of metal fatigue; the entire reinforcement installation mechanism significantly reduces the construction complexity of high-altitude operations while ensuring anti-overturning performance.

Description

Technical Field

[0001] This utility model relates to the field of bridge reinforcement technology, and in particular to an installation device for anti-overturning reinforcement of single-column pier bridges. Background Technology

[0002] A single-column pier bridge is a type of bridge that uses only a single pier to support the entire superstructure. It is suitable for urban road overpasses, interchanges, and highway interchange ramps. It has advantages such as occupying less land, providing a wide field of vision, and having an aesthetically pleasing bridge shape. However, it has an inherent defect of insufficient lateral overturning resistance. The most common anti-overturning reinforcement device for single-column pier bridges is to permanently fasten it with steel clamps, high-strength bolts, and welding.

[0003] While welding the bolt structure can improve the overall stability of the reinforcement device, when the device is exposed to humid, salt spray, or asymmetrical loads for a long time, the staff will need to replace the device regularly. However, subsequent replacements or adjustments require the disassembly of large equipment, which increases the disassembly burden of the anti-overturning reinforcement device for single-column pier bridges. Utility Model Content

[0004] Therefore, it is necessary to provide an installation device for reinforcing single-column pier bridges to address the problem of difficult maintenance in the later stages of existing anti-overturning reinforcement installation devices.

[0005] An installation device for reinforcing single-column pier bridges against overturning includes:

[0006] Two semi-circular clamps are provided, and the two semi-circular clamps are aligned and fitted together.

[0007] A reinforcement installation mechanism includes a regular hexagonal mounting frame, which is fixedly connected to one end of one of the semi-annular clamps. A regular hexagonal bolt is inserted into the inner side of the regular hexagonal mounting frame. The shank of the regular hexagonal bolt passes through one of the semi-annular clamps and extends to the outside of the other semi-annular clamp. A flange nut is threaded onto the surface of the regular hexagonal bolt. A positioning frame is fitted onto the outer side of the flange nut. A sliding cavity is formed on the outer side of the positioning frame. A positioning strip is slidably connected inside the sliding cavity. A spring that contacts the positioning strip is placed inside the sliding cavity. A circular frame, which is fixedly connected to the other semi-annular clamp, is fitted onto the outer side of the positioning frame. A positioning groove that engages with the positioning strip is formed on the inner side of the circular frame.

[0008] In one embodiment, the positioning frame has an insertion hole at the end facing away from the semi-circular clamp, and a guide block is slidably connected inside the insertion hole. A guide post is fixedly connected to the end of the guide block facing the semi-circular clamp. A guide frame is fixedly connected to the end of the positioning strip facing away from the positioning groove. A guide groove is provided on the inner side of the guide frame. The guide groove gradually approaches the semi-circular clamp from the flange nut toward the positioning frame. One end of the guide post penetrates into the interior of the guide groove.

[0009] In one embodiment, the guide post has a circular cross-sectional shape, and the diameter of the guide post matches the width of the guide groove.

[0010] In one embodiment, there are two guide frames, which are symmetrically distributed on both sides of the guide block.

[0011] In one embodiment, the end of the guide frame facing away from the positioning strip contacts a spring, which is a rubber material component.

[0012] In one embodiment, the positioning groove is annular in shape, and the positioning groove and the positioning strip are of the same width.

[0013] In one embodiment, the cross-sectional shape of the contact area between the positioning frame and the flange nut is a matching regular hexagon.

[0014] Beneficial effects

[0015] The aforementioned installation device for reinforcing single-column pier bridges against overturning utilizes the inclined surfaces of guide blocks, guide columns, and guide grooves. During disassembly, simply inserting an internal hexagonal sleeve automatically releases the locking of the positioning strip onto the flange nut, achieving rapid release of preload without tools. This design avoids damage to the bolt threads. The springs are made of rubber, ensuring the reset thrust of the positioning strip while reducing the risk of metal fatigue. The entire reinforcement installation mechanism significantly reduces the complexity of high-altitude operations while maintaining anti-overturning performance.

[0016] This structure uses a hexagonal bolt and flange nut threaded connection, combined with a positioning frame, positioning strip, and positioning groove in a circular frame to form a multiple locking mechanism. When the flange nut is tightened into place, a spring pushes the guide frame to automatically engage the positioning strip in the annular positioning groove of the circular frame, completely restricting the rotational freedom of the flange nut. This mechanical interlocking design avoids the defects of traditional bolted connections that are prone to loosening under vibration, and is especially suitable for bridges that bear dynamic loads for a long time. At the same time, the positioning frame and flange nut use a matching hexagonal cross section, which further enhances the stability of torque transmission. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the reinforcement installation mechanism in this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the reinforcement and installation mechanism in this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is an exploded view of the reinforcement installation mechanism in this utility model.

[0023] Figure label:

[0024] 100. Semi-circular clamp; 200. Reinforced installation mechanism; 210. Regular hexagonal mounting frame; 220. Regular hexagonal bolt; 230. Flange nut; 240. Positioning frame; 241. Sliding cavity; 242. Insertion hole; 250. Positioning strip; 260. Spring; 270. Circular frame; 271. Positioning groove; 280. Guide block; 290. Guide post; 2100. Guide frame; 2101. Guide sloping groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0030] The following is combined Figures 1-5 This invention describes an installation device for reinforcing single-column pier bridges against overturning.

[0031] In one embodiment, an installation device for anti-overturning reinforcement of a single-column pier bridge includes: two semi-circular clamps 100 and a reinforcement installation mechanism 200, wherein the two semi-circular clamps 100 are aligned and fitted together.

[0032] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the reinforcement installation mechanism 200 includes a regular hexagonal mounting frame 210, which is fixedly connected to one end of one of the semi-annular clamps 100. A regular hexagonal bolt 220 is inserted into the inner side of the regular hexagonal mounting frame 210. The shank of the regular hexagonal bolt 220 passes through one of the semi-annular clamps 100 and extends to the outside of the other semi-annular clamp 100. A flange nut 230 is threaded onto the surface of the regular hexagonal bolt 220. A positioning frame 240 is fitted on the outer side of the flange nut 230. A sliding opening is provided on the outer side of the positioning frame 240. The cavity 241 has a slidably connected positioning strip 250 inside, and a spring 260 that contacts the positioning strip 250 is placed inside the cavity 241. The outer side of the positioning frame 240 is fitted with a circular frame 270 that is fixedly connected to another semi-circular clamp 100. The inner side of the circular frame 270 has a positioning groove 271 that engages with the positioning strip 250. The positioning groove 271 is circular in shape, and the width of the positioning groove 271 and the positioning strip 250 are the same. The cross-sectional shape of the contact part between the positioning frame 240 and the flange nut 230 is a matching regular hexagon.

[0033] like Figure 2 , Figure 4 and Figure 5 As shown, the positioning frame 240 has an insertion hole 242 at one end facing away from the semi-circular clamp 100. A guide block 280 is slidably connected inside the insertion hole 242. A guide post 290 is fixedly connected to one end of the guide block 280 facing the semi-circular clamp 100. A guide frame 2100 is fixedly connected to one end of the positioning strip 250 facing away from the positioning groove 271. A guide groove 2101 is provided on the inner side of the guide frame 2100. The guide groove 2101 gradually approaches the semi-circular clamp 100 from the flange nut 230 toward the positioning frame 240. One end of the guide post 290 penetrates into the interior of the guide groove 2101. The cross-sectional shape of the guide post 290 is circular, and the diameter of the guide post 290 matches the width of the guide groove 2101. There are two guide frames 2100, which are symmetrically distributed on both sides of the guide block 280. The end of the guide frame 2100 facing away from the positioning strip 250 contacts the spring 260, which is a rubber component.

[0034] The installation process for the anti-overturning reinforcement device for single-column pier bridges is as follows:

[0035] I. Preparatory work:

[0036] Measurement and positioning: Accurately measure the diameter and elevation of the pier column to determine the installation position of the clamp.

[0037] Inspection of clamps: The diameter should be slightly larger than the diameter of the pier column, usually with a 1cm margin to ensure sufficient friction after clamping. Check the bolt hole positions, weld quality and steel plate thickness to verify the load-bearing capacity.

[0038] Component pre-assembly: Temporarily assemble the two semi-circular clamps 100, adjust the joint gap to ≤20mm, pre-tighten the bolts to confirm compatibility, and weld the regular hexagonal mounting frame 210 and the circular frame 270 to the opposite ends of the two semi-circular clamps 100 respectively.

[0039] II. Clamp Installation:

[0040] Lifting and positioning: Use lifting equipment to symmetrically fasten the two semi-circular clamps 100 to the predetermined position on the pier column, ensuring that the center of the semi-circular clamps 100 is horizontal and aligned with the axis of the pier column. Adjust the angle of the semi-circular clamps 100 so that their inner walls are completely in contact with the surface of the pier column without any gaps.

[0041] Bolt tightening: Insert the hexagonal bolt 220 sequentially through the bolt holes on the hexagonal mounting frame 210 and the two semi-circular clamps 100 until the head of the hexagonal bolt 220 is engaged in the hexagonal mounting frame 210 to prevent rotation. Then, place the positioning frame 240 onto the surface of the flange nut 230, and screw the flange nut 230 onto the shank of the hexagonal bolt 220. Finally, insert the matching hexagonal socket into the flange nut 230. Simultaneously, the hex socket presses the guide block 280 into the insertion hole 242. The guide block 280, through the guide post 290, guide groove 2101, and guide frame 2100, drives the positioning strip 250 to retract into the sliding cavity 241. When the flange nut 230 is installed in place, the sliding cavity 241 is aligned with the positioning groove 271. The operator only needs to remove the hex socket, and the spring 260 pushes the positioning strip 250 into the positioning groove 271 through the guide frame 2100 to prevent the flange nut 230 from rotating.

[0042] III. Supplementary Content: Strengthening the supporting structure and anti-overturning connection structure:

[0043] Installation of support system: A load-bearing crossbeam is erected on the clamp bracket, and a distribution beam is laid on the crossbeam and tied and fixed; the bottom formwork of the cap beam and the working platform are installed on the top, and the anti-fall net is set up at the same time.

[0044] Anti-overturning reinforcement connection: Install through holes at the cantilever end of the clamp, aligning them with the center of the pre-embedded connecting steel seat at the bottom of the bridge; anchor the clamp and the connecting steel seat with rigid tie rods to form an overall anti-overturning system.

[0045] Working principle: When disassembling the semi-circular clamp 100, the operator only needs to place the hexagon socket sleeve that matches the flange nut 230 onto the surface of the flange nut 230. At this time, the hexagon socket sleeve will press the guide block 280 into the insertion hole 242. The guide block 280, through the linkage of the guide post 290, the guide groove 2101 and the guide frame 2100, drives the positioning strip 250 to retract into the sliding cavity 241, thereby unlocking the flange nut 230. At this time, the operator can rotate the hexagon socket sleeve normally to unscrew the flange nut 230 from the hexagon bolt 220, and then remove the hexagon bolt 220 to complete the disassembly. This reinforced installation mechanism 200 can effectively prevent the threaded connection from loosening and significantly reduce the difficulty of disassembly, making subsequent maintenance operations easier.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A mounting device for anti-overturning reinforcement of a single-column pier bridge, characterized in that, include: Two semi-circular clamps (100) are provided, and the two semi-circular clamps (100) are aligned and fitted together. A reinforcement installation mechanism (200) includes a regular hexagonal mounting frame (210), which is fixedly connected to one end of one of the semi-annular clamps (100). A regular hexagonal bolt (220) is inserted into the inner side of the regular hexagonal mounting frame (210). The shank of the regular hexagonal bolt (220) passes through one of the semi-annular clamps (100) and extends to the outside of the other semi-annular clamp (100). A flange nut (230) is threaded onto the surface of the regular hexagonal bolt (220). The flange nut (230) is fitted with a positioning frame (240) on the outside. The positioning frame (240) has a sliding cavity (241) on the outside. The sliding cavity (241) is slidably connected with a positioning strip (250). The sliding cavity (241) is filled with a spring (260) that contacts the positioning strip (250). The positioning frame (240) is fitted with a circular frame (270) that is fixedly connected to another semi-circular clamp (100) on the outside. The circular frame (270) has a positioning groove (271) that engages with the positioning strip (250) on the inside.

2. The mounting device for anti-overturning reinforcement of single-column pier bridge according to claim 1, characterized in that, The positioning frame (240) has an insertion hole (242) at one end facing away from the semi-circular clamp (100). A guide block (280) is slidably connected inside the insertion hole (242). A guide post (290) is fixedly connected at one end of the guide block (280) facing the semi-circular clamp (100). A guide frame (2100) is fixedly connected at one end of the positioning strip (250) facing away from the positioning groove (271). A guide groove (2101) is provided on the inner side of the guide frame (2100). The guide groove (2101) gradually approaches the semi-circular clamp (100) from the flange nut (230) toward the positioning frame (240). One end of the guide post (290) penetrates into the interior of the guide groove (2101).

3. The mounting device for anti-overturning reinforcement of single-column pier bridge according to claim 2, characterized in that, The guide post (290) has a circular cross-sectional shape, and the diameter of the guide post (290) matches the width of the guide groove (2101).

4. The mounting device for anti-overturning reinforcement of single-column pier bridge according to claim 2, characterized in that, There are two guide frames (2100), which are symmetrically distributed on both sides of the guide block (280).

5. The mounting device for anti-overturning reinforcement of single-column pier bridge according to claim 4, characterized in that, One end of the guide frame (2100) facing away from the positioning strip (250) is in contact with the spring (260), which is a rubber material component.

6. The mounting device for anti-overturning reinforcement of single-column pier bridge according to claim 1, characterized in that, The positioning groove (271) is circular in shape, and the positioning groove (271) and the positioning strip (250) have the same width.

7. The mounting device for anti-overturning reinforcement of single-column pier bridge according to claim 1, characterized in that, The cross-sectional shape of the contact area between the positioning frame (240) and the flange nut (230) is a matching regular hexagon.

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