Foldable embrace column type detection device for underwater pier column of concrete beam bridge

Abstract

The utility model relates to bridge pier column detection technical field, and disclose a kind of concrete beam bridge underwater pier column foldable embrace column type detection device;Including pier column body, further include: the first fixed ring and second fixed ring of being arranged in the surface of pier column body, it is hinged between the first fixed ring and second fixed ring, and the surface of first fixed ring and second fixed ring is fixed with three connecting plates.In use, if the first fixed ring and second fixed ring drop and so on, then the friction between second oblique toothed plate cooperation rubber strip and pier column body, the first oblique toothed plate is more restrained by the traction of first fixed ring and second fixed ring at this time, so first oblique toothed plate will drive limit rod to slide in extension plate inside, and compression is caused to spring, the first oblique toothed plate is obliquely engaged second oblique toothed plate at this time, and then make the more stable between the clamping of second oblique toothed plate and pier column body, to prevent first fixed ring and second fixed ring from falling.

Description

Technical Field

[0001] This utility model relates to the field of bridge pier detection technology, specifically a foldable, column-hugging detection device for underwater piers of concrete beam bridges. Background Technology

[0002] The foldable underwater pier inspection device for concrete beam bridges is a specialized device for detecting damage to underwater piers. It suspends a foldable underwater gear-mounted arm mechanism through a water-based clamping mechanism fixed above the water surface. After entering the water, the arm opens and closes around the pier to form a circular track. The matching binocular camera motion detection mechanism rotates along the track in a circular motion with the help of gear meshing, and together with the suspender, it can realize the acquisition of images of the pier from all angles and at multiple heights.

[0003] Currently, folding column-hugging detection devices used for pier inspection typically employ two fixing rings to secure the pier surface. These rings are then connected to a folding toothed ring via a connecting rod and installed inside the water surface. However, the common practice of using two fixing rings necessitates separate alignment and locking operations, adding extra steps to the installation process and reducing on-site deployment efficiency. Furthermore, over long-term use, the contact area between the inner ring of the fixing ring and the pier surface experiences continuous friction due to the device's own weight, water flow impact, and vibrations generated by the detection mechanism's operation. This causes the frictional force on the contact surface to gradually decrease. Combined with the overall load from the bottom connecting rod, the circular track, and the detection camera, this eventually leads to the fixing ring gradually shifting downwards on the pier, affecting detection accuracy and posing safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a foldable, column-hugging detection device for underwater piers of concrete beam bridges, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a foldable, column-hugging detection device for underwater piers of concrete beam bridges, comprising a pier body, and further comprising: The first and second fixing rings are hinged together on the surface of the pier column. Three connecting plates are fixed to the surface of the first and second fixing rings. An extension plate is fixed to one side of the connecting plate. A positioning plate is fixed inside the extension plate by screws. A connecting rod is installed inside the positioning plate by screws. A retaining plate is fixed to the bottom of the connecting rod. The surface of the pier column is provided with three hinged toothed rings. One side of the retaining plate is fixed to the toothed rings, and one side of the extension plate is provided with a positioning component.

[0006] Preferably, a sliding frame is fitted onto the surface of the gear ring, a motor is fixedly connected to the top of the sliding frame, a gear is fixedly connected to the output of the motor, and a detection camera is fixedly connected to the top of the sliding frame.

[0007] Preferably, a rope is installed inside the fixing plate, and a suspending ball is installed at one end of the rope.

[0008] Preferably, a screw is hinged inside the first fixing ring, and an internal threaded ring is threaded to one side of the screw surface. A pressure block for limiting the internal threaded ring is fixedly connected to one side of the second fixing ring.

[0009] Preferably, the positioning component includes a limiting rod slidably connected inside the extension plate, a first helical tooth plate is fixedly connected to one side of the limiting rod, and a second helical tooth plate is provided on one side of the first helical tooth plate.

[0010] Preferably, a spring is fixedly connected between one side of the first helical tooth plate and the connecting plate.

[0011] Preferably, guide plates are provided on both sides of the second helical toothed plate, the top of the guide plates are fixedly connected to the first fixing ring and the second fixing ring respectively, and sliding blocks are fixedly connected to both sides of the second helical toothed plate. The guide plates are provided with sliding grooves for use with the sliding blocks.

[0012] Preferably, a rubber strip is fixedly connected to one side of the second helical tooth plate, and the rubber strip is arranged in an array.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a first and second fixed ring fitted onto the surface of the pier column. Together with a connecting plate, an extension plate, and a positioning plate, it drives a connecting rod to engage with three hinged toothed rings, forming a circle on the pier column surface. During use, if the first and second fixed rings fall, friction occurs between the second inclined toothed plate and the rubber strip and the pier column. At this time, the first inclined toothed plate is subject to greater restraint from the first and second fixed rings, causing the first inclined toothed plate to slide within the extension plate and compress the spring. The descending first inclined toothed plate then engages obliquely with the second inclined toothed plate, making the clamping between the second inclined toothed plate and the pier column more stable. This prevents the first and second fixed rings from falling, creating a coordinated anti-fall effect of downward movement, inclined tooth engagement, and enhanced clamping force, thus preventing the fixed rings from continuously descending. Attached Figure Description

[0014] Figure 1 A schematic diagram of the main structure of the foldable column-hugging detection device for underwater piers of concrete beam bridges provided by this utility model. Figure 2 This is a schematic diagram of the structure from another perspective provided by this utility model; Figure 3 This is a schematic diagram of the pier column removal structure provided by this utility model; Figure 4 A schematic diagram of the positioning component structure provided by this utility model; Figure 5 Provided by this utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0015] In the diagram: 1. Pier column; 2. First fixing ring; 21. Second fixing ring; 3. Connecting plate; 4. Extension plate; 5. Positioning plate; 6. Connecting rod; 7. Fixing plate; 8. Gear ring; 9. Positioning assembly; 901. Limiting rod; 902. First helical toothed plate; 903. Second helical toothed plate; 904. Spring; 905. Guide plate; 906. Sliding block; 907. Slide groove; 908. Rubber strip; 10. Sliding frame; 11. Motor; 12. Gear; 13. Rope; 14. Suspension ball; 15. Screw; 16. Internal threaded ring; 17. Pressing block; 18. Detection camera. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 As shown, a foldable, column-hugging detection device for underwater piers of concrete beam bridges includes a pier body 1, and further includes: A first fixing ring 2 and a second fixing ring 21 are installed on the surface of the pier column 1. The first fixing ring 2 and the second fixing ring 21 are hinged together. Three connecting plates 3 are fixed on the surface of the first fixing ring 2 and the second fixing ring 21. An extension plate 4 is fixed on one side of the connecting plate 3. A positioning plate 5 is fixed inside the extension plate 4 by screws. A connecting rod 6 is installed inside the positioning plate 5 by screws. The hinge between the first fixing ring 2 and the second fixing ring 21 facilitates fixing to the surface of the pier column 1. The connecting plate 3, in conjunction with the extension plate 4 and the positioning plate 5, facilitates the subsequent installation of the connecting rod 6, which is used for subsequent auxiliary work. The fixing plate 7 is fixed to the bottom of the connecting rod 6. Three hinged toothed rings 8 are provided on the surface of the pier column 1. One side of the fixing plate 7 is fixed to the toothed rings 8. One side of the extension plate 4 is provided with a positioning component 9. The toothed rings 8 are three in number and are hinged, which not only facilitates subsequent folding and carrying, but also makes it easier to install on the surface of the pier column 1. The fixing plate 7 and the connecting rod 6 are used to facilitate installation and fixation between the fixing plate 7 and the positioning plate 5. The positioning component 9 is used to improve the stability of the fixation between the first fixing ring 2 and the second fixing ring 21 and the pier column 1.

[0018] A sliding frame 10 is fitted onto the surface of the gear ring 8. A motor 11 is fixedly connected to the top of the sliding frame 10, and a gear 12 is fixedly connected to the output of the motor 11. A detection camera 18 is fixedly connected to the top of the sliding frame 10. A cable 13 is installed inside the fixing plate 7, and a floating ball 14 is installed at one end of the cable 13. A screw 15 is hinged inside the first fixing ring 2, and an internal threaded ring 16 is threaded onto one side of the surface of the screw 15. A pressure block 17 for limiting the internal threaded ring 16 is fixedly connected to one side of the second fixing ring 21. The sliding frame 10 facilitates the installation of the motor 11, and the gear 12 fixed at the output end of the motor 11 can drive the detection camera 18. The camera 18 rotates on the surface of the gear ring 8 to detect the pier 1. It should be noted that the motor 11, gear 12, detection camera 18 and gear ring 8 are the same as the binocular camera, servo motor and gear 12 in application number CN117288679A. The suspension ball 14 is conveniently installed by the rope 13. The suspension ball 14 is used to provide auxiliary support for the gear ring 8. When the user needs to remove the first fixing ring 2 and the second fixing ring 21, the internal thread ring 16 is rotated on the surface of the screw 15 to make it disengage from the pressure block 17. Then the screw 15 is rotated to make it flip on the surface of the first fixing ring 2, thereby quickly removing the first fixing ring 2.

[0019] The positioning component 9 includes a limiting rod 901 slidably connected inside the extension plate 4. A first helical toothed plate 902 is fixedly connected to one side of the limiting rod 901, and a second helical toothed plate 903 is provided on one side of the first helical toothed plate 902. A spring 904 is fixedly connected between one side of the first helical toothed plate 902 and the connecting plate 3. Guide plates 905 are provided on both sides of the second helical toothed plate 903. The top of the guide plates 905 is fixedly connected to the first fixing ring 2 and the second fixing ring 21, respectively. Sliding blocks 906 are fixedly connected to both sides of the second helical toothed plate 903. A groove 907 for use with the sliding block 906 is opened inside the guide plate 905. A rubber strip 908 is fixedly connected to one side of the second helical toothed plate 903. The rubber strips 908 are arranged in an array. When the first fixing ring 2 and the second fixing ring 21 descend, Firstly, the rubber strips 908 fixed on one side of the second helical toothed plate 903 increase the friction between it and the pier column 1. Then, as the first fixing ring 2 and the second fixing ring 21 descend, the connecting plate 3 drives the limiting rod 901 to descend. At this time, the limiting rod 901 will drive the first helical toothed plate 902 to descend. Therefore, there is more restraint between the first helical toothed plate 902 and the first fixing ring 2 and the second fixing ring 21. So when the inclined surface of the first helical toothed plate 902 descends on the surface of the second helical toothed plate 903 and compresses the spring 904, the second helical toothed plate 903 will be pressed by the helical tooth surface of the first helical toothed plate 902, thereby forcing the second helical toothed plate 903 to drive the rubber strips 908 to clamp more stably with the pier column 1, thereby preventing the first fixing ring 2 and the second fixing ring 21 from descending.

[0020] Working principle: During the installation phase, the first fixing ring 2 and the second fixing ring 21 are opened and fitted onto the surface of the pier 1 through the hinge structure. The screw 15 is rotated to make it fit against the pressing block 17. Then, the internal threaded ring 16 is rotated to move along the screw 15 and lock the pressing block 17, thus achieving the initial fixation of the first fixing ring 2 and the second fixing ring 21 on the surface of the pier 1. Simultaneously, the three hinged gear rings 8 are unfolded. The connecting rod 6 is fixed to the extension plate 4 through the positioning plate 5 and screws. The fixing plate 7 at the bottom of the connecting rod 6 is fixed to the gear ring 8, so that the gear ring 8 forms a closed loop track around the pier 1 and is fixed by screws. At the same time, the sliding frame 10 is fitted onto the surface of the gear ring 8. The suspension ball 14 suspended by the rope 13 provides auxiliary support for the gear ring 8 using buoyancy, reducing the load pressure on the connecting rod 6. During the inspection phase, the motor 11 at the top of the sliding frame 10 is started. The output end of the motor 11 drives the gear 12 to rotate. The gear 12 meshes with the gear ring 8, driving the sliding frame 10 along the track. The toothed ring 8 moves smoothly along the annular track, and the detection camera 18 on the sliding frame 10 simultaneously acquires underwater damage images of the pier 1 from different angles. When the first fixed ring 2 and the second fixed ring 21 show a downward tendency due to frictional attenuation and load during long-term use, the rubber strips 908 arrayed on one side of the second inclined toothed plate 903 generate initial friction with the surface of the pier 1 to resist the downward movement. At the same time, the downward movement of the fixed rings causes the connecting plate 3 to sink synchronously. The connecting plate 3 is pulled by the spring 904. The inclined tooth plate 902 causes the first inclined tooth plate 902 to slide downward within the extension plate 4 along with the limiting rod 901. The inclined surface of the first inclined tooth plate 902 engages and presses against the inclined surface of the second inclined tooth plate 903, forcing the second inclined tooth plate 903 to move towards the pier 1 along the sliding groove 907 of the guide plate 905 via the sliding block 906. The clamping force between the rubber strip 908 and the pier 1 is further increased, forming a linkage anti-fall effect of downward trend, inclined tooth engagement, and enhanced clamping force, thus preventing the fixed ring from continuously moving downward.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A foldable, column-hugging detection device for underwater piers of concrete beam bridges, comprising a pier body (1), characterized in that, Also includes: A first fixing ring (2) and a second fixing ring (21) are provided on the surface of the pier (1). The first fixing ring (2) and the second fixing ring (21) are hinged together. Three connecting plates (3) are fixed on the surface of the first fixing ring (2) and the second fixing ring (21). An extension plate (4) is fixed on one side of the connecting plate (3). A positioning plate (5) is fixed inside the extension plate (4) by screws. A connecting rod (6) is installed inside the positioning plate (5) by screws. The fixing plate (7) is fixed to the bottom of the connecting rod (6). The surface of the pier (1) is provided with three hinged toothed rings (8). One side of the fixing plate (7) is fixed to the toothed rings (8). One side of the extension plate (4) is provided with a positioning component (9).

2. The foldable, column-hugging detection device for underwater piers of concrete beam bridges according to claim 1, characterized in that: A sliding frame (10) is fitted on the surface of the gear ring (8). A motor (11) is fixedly connected to the top of the sliding frame (10). A gear (12) is fixedly connected to the output of the motor (11). A detection camera (18) is fixedly connected to the top of the sliding frame (10).

3. The foldable, column-hugging detection device for underwater piers of concrete beam bridges according to claim 1, characterized in that: The fixed plate (7) is equipped with a rope (13), and a suspension ball (14) is installed at one end of the rope (13).

4. The foldable, column-hugging detection device for underwater piers of concrete beam bridges according to claim 1, characterized in that: The first fixing ring (2) has a screw (15) hinged inside, and an internal threaded ring (16) is threaded to one side of the surface of the screw (15). The second fixing ring (21) has a pressing block (17) fixedly connected to one side for limiting the internal threaded ring (16).

5. The foldable, column-hugging detection device for underwater piers of concrete beam bridges according to claim 1, characterized in that: The positioning component (9) includes a limiting rod (901) slidably connected inside the extension plate (4). A first helical tooth plate (902) is fixedly connected to one side of the limiting rod (901), and a second helical tooth plate (903) is provided on one side of the first helical tooth plate (902).

6. The foldable, column-hugging detection device for underwater piers of concrete beam bridges according to claim 5, characterized in that: A spring (904) is fixedly connected between one side of the first helical tooth plate (902) and the connecting plate (3).

7. The foldable, column-hugging detection device for underwater piers of concrete beam bridges according to claim 5, characterized in that: Guide plates (905) are provided on both sides of the second helical toothed plate (903). The top of the guide plate (905) is fixedly connected to the first fixing ring (2) and the second fixing ring (21) respectively. Sliding blocks (906) are fixedly connected on both sides of the second helical toothed plate (903). A sliding groove (907) for use with the sliding block (906) is opened inside the guide plate (905).

8. The foldable, column-hugging detection device for underwater piers of concrete beam bridges according to claim 5, characterized in that: A rubber strip (908) is fixedly connected to one side of the second helical toothed plate (903), and the rubber strip (908) is arranged in an array.

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