A concrete-filled steel tube void detection device

Abstract

The utility model discloses a kind of concrete-filled steel tube void detection devices, including main plate, the first fixed base is fixed in the top of main plate, the first fixed base top is rotatably connected with the first rotating base, the first rotating base top is fixed with the first rotating column base, the first rotating column base surface is rotatably connected with the first rotating column in the hole inner wall of being set, the first rotating column side is fixed with the first connecting rod, the first connecting rod one end is fixed with sliding cylinder, sliding cylinder inside is fixed with the partition plate, and sliding cylinder and the partition plate inside are slidably connected with hammer, hammer surface is fixed with compression plate, the first spring is fixed in the top of compression plate, the side of hammer located in the top of partition plate is fixed with fixed protrusion, sliding cylinder is rotatably connected with trigger in the side of the top of partition plate by pivot, trigger side is fixed with compression column, the position of sliding cylinder corresponding to the bottom of compression column is set with recess, the second spring is fixed in the bottom of recess and connected to the bottom of compression column.

Description

Technical Field

[0001] This utility model belongs to the technical field of civil engineering, specifically relating to a device for detecting voids in steel pipe concrete. Background Technology

[0002] Concrete-filled steel tubes (CTBs) are widely used in bridge and building support structures due to their excellent load-bearing capacity. However, during construction and use, due to concrete shrinkage, temperature changes, or incomplete compaction, voids can easily form between the steel tube and the core concrete. This hidden danger significantly weakens the stiffness and load-bearing capacity of the component, threatening structural safety. A CTB void detection device is designed to accurately and efficiently detect such hidden defects and ensure the long-term safe operation of the project.

[0003] A search revealed Chinese patent publication number CN118238157A, which discloses a robot for detecting void defects in steel-concrete composite columns. The robot includes a power supply system, a control system, a power system, a striking system, a sensor system, and a data detection system. The control system includes a controller and a control device, which can acquire settings from a remote control to perform corresponding actions. The power system enables the robot's movement, magnetic attraction, and hammer operation. The striking system applies a set intensity of impact to the steel-concrete composite column at a set location and collects sound vibration signals. The sensor system includes a pressure sensor and a camera sensor. The pressure sensor monitors the magnitude of the hammer's force and the robot's magnetic attraction, while the camera sensor monitors the surrounding environment. The data monitoring system collects the sound wave and vibration signals generated by the impact, stores the signals, and displays them in real time.

[0004] The aforementioned patent has the following shortcomings: the device uses an intelligent robot to adhere to the concrete surface of the steel pipe and taps it with a tapping system to detect the void position through vibration signals, but its structure is complex and its weight is too heavy, making it difficult to popularize in small and medium-sized projects or daily inspections.

[0005] To address this, a steel-concrete composite void detection device is proposed. This device allows for control of the striking force through a mechanical structure, eliminating the need for a complex control system and professional training. It is well-suited for daily inspections in frontline projects. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide a device that can control the striking force through a mechanical structure, without the need for a complex control system to control the striking.

[0007] To address one or more of the above-mentioned defects or improvement needs in the existing technology, this utility model provides a steel pipe concrete void detection device, including a main plate. A first fixed base is fixedly connected to the top of the main plate. A first rotating base is rotatably connected to the top of the first fixed base via a rotating shaft. A first rotating column base is fixedly installed on the top of the first rotating base. A first rotating column is rotatably connected to the inner wall of a hole on the surface of the first rotating column base. A first connecting rod is fixedly fixed to one side of the first rotating column, and a sliding cylinder is fixedly connected to one end of the first connecting rod. An isolation plate is fixedly installed inside the sliding cylinder, and a hammer is slidably connected between the sliding cylinder and the isolation plate. A compression plate is fixedly installed on the surface of the hammer, and the compression plate is located inside the sliding cylinder. A first spring is fixedly installed on the top of the compression plate, and the other end of the first spring is fixedly connected to the bottom of the isolation plate. A fixing protrusion is fixedly installed on one side of the hammer located on the top of the isolation plate. A trigger is rotatably connected to one side of the sliding cylinder located on the top of the isolation plate via a rotating shaft. A compression column is fixedly installed on one side of the trigger. A groove is formed on the sliding cylinder corresponding to the bottom of the compression column, and a second spring is fixedly connected to the bottom of the groove, with the other end of the second spring fixedly connected to the bottom of the compression column.

[0008] In some embodiments, a rubber cap is fitted onto one end of the hammer, and a handle is fixedly installed on the other end.

[0009] In some embodiments, a fixing plate is fixedly connected to the surface of the first rotating base, and a plurality of positioning holes are evenly opened around the first rotating base on the fixing plate.

[0010] In some embodiments, a rubber protrusion is fixedly connected to the top of the first fixed base, and the top of the rubber protrusion is located in the positioning hole on the surface of the fixed plate.

[0011] In some embodiments, a rubber base and a magnetic base are fixedly connected to the bottom of the main body plate, and the height of the rubber base is higher than that of the magnetic base.

[0012] In some embodiments, a second fixed base and a recording device are also fixedly installed on the top of the main body plate; a second rotating base is rotatably connected to the top of the second fixed base via a rotating shaft, and a second rotating column base is fixedly installed on the top of the second rotating base; a second rotating column is rotatably connected to the inner wall of the hole opened on the surface of the second rotating column base.

[0013] In some embodiments, a second connecting rod is fixedly installed on one side of the second rotating column; a third rotating column is rotatably connected to the inner wall of a hole opened on the end surface of the second connecting rod; and a third connecting rod is fixedly installed on one side of the third rotating column.

[0014] In some embodiments, a microphone is fixedly mounted at the end of the third connecting rod, and a sound-focusing cover for the microphone to collect sound is fixedly mounted on its surface.

[0015] In summary, the technical solutions conceived by this invention have the following beneficial effects compared with the prior art: 1. This utility model discloses a steel pipe concrete void detection device. By holding the first connecting rod and pulling the handle upwards, a compression plate approaches the isolation plate, compressing the first spring. Then, as the fixed protrusion slides across the smooth surface of the trigger, the compression column squeezes the second spring. When the user releases the handle, the compression column, under the elastic force of the second spring, drives the trigger back to its original position, and the fixed protrusion is then locked by the flat surface of the trigger. The user can then pull the trigger downwards, causing the compression column to stretch the second spring and simultaneously releasing the fixed protrusion. This allows the hammer to strike the designated location due to the elastic release of the spring after the first spring compression. Finally, the compression column, under the elastic force of the second spring, drives the trigger back to its original position, completing one striking action. This device, by stretching the handle to compress the first spring, converts the user's kinetic energy into the spring's potential energy and stores it, ensuring consistent striking force each time, making it more stable than manual striking.

[0016] 2. This utility model discloses a steel-concrete composite void detection device. The device can be easily attached to the steel-concrete composite using a magnetic base. Because the rubber base is made of wear-resistant rubber and is higher than the magnetic base, the magnetic base will not directly contact the concrete, thus preventing wear. The magnetic base uses magnetic force to quickly fix the device to the surface of the steel component in the steel-concrete composite, while the rubber base prevents wear on the magnetic base itself.

[0017] 3. This utility model discloses a steel pipe concrete void detection device, which allows for free movement of the microphone to align it with the impact point. The sound-focusing cover provides the microphone with a more stable impact sound, and the impact sound is stored in the recording device for users to analyze whether voids exist at the impact point. The microphone achieves multi-degree-of-freedom adjustment through multiple rotating shafts and connecting rods, allowing for precise alignment with the impact point and ensuring the acquisition of stable sound wave signals. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a steel pipe concrete void detection device according to an embodiment of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of a steel pipe concrete void detection device according to an embodiment of this utility model; Figure 3 This is a front view of a steel pipe concrete void detection device according to an embodiment of this utility model; Figure 4This is a cross-sectional view of a steel-concrete composite void detection device according to an embodiment of this utility model; Figure 5 This is an embodiment of a steel-concrete composite void detection device. Figure 4 Enlarged diagram of part A in the middle.

[0019] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1 main body plate, 2 rubber base, 3 magnetic base, 4 first fixed base, 5 fixed plate, 6 rubber protrusion, 7 first rotating base, 8 first rotating column base, 9 first rotating column, 10 first connecting rod, 11 sliding cylinder, 12 hammer, 13 rubber cap, 14 grip, 15 second fixed base, 16 second rotating base, 17 second rotating column base, 18 second rotating column, 19 compression plate, 20 second connecting rod, 21 third rotating column, 22 third connecting rod, 23 microphone, 24 sound trap, 25 first spring, 26 fixed protrusion, 27 trigger, 28 compression column, 29 second spring, 30 recording device, 31 isolation plate. Detailed Implementation

[0020] 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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0021] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] Please refer to Figure 1-5A steel pipe concrete void detection device includes a main plate 1. A first fixed base (4) is fixedly connected to the top of the main plate 1. A first rotating base 7 is rotatably connected to the top of the first fixed base (4) via a rotating shaft. A first rotating column base 8 is fixedly installed on the top of the first rotating base 7. A first rotating column 9 is rotatably connected to the inner wall of a hole opened on the surface of the first rotating column base 8. A first connecting rod 10 is fixedly fixed to one side of the first rotating column 9. A sliding cylinder 11 is fixedly connected to one end of the first connecting rod 10. An isolation plate 31 is fixedly installed inside the sliding cylinder 11. A hammer 12 is slidably connected inside the sliding cylinder 11 and the isolation plate 31. A rubber cap 13 is sleeved on one end of the hammer 12, and the other end is fixedly mounted on... The hammer 12 is equipped with a handle 14. A compression plate 19 is fixedly installed on the surface of the hammer 12, and the compression plate 19 is located inside the sliding cylinder 11. A first spring 25 is fixedly installed on the top of the compression plate 19, and the other end of the first spring 25 is fixedly connected to the bottom of the isolation plate 31. A fixing protrusion 26 is fixedly installed on one side of the top of the isolation plate 31 of the hammer 12. A trigger 27 is rotatably connected to one side of the top of the sliding cylinder 11 of the isolation plate 31 via a rotating shaft. A compression column 28 is fixedly installed on one side of the trigger 27. A groove is opened on the sliding cylinder 11 corresponding to the bottom of the compression column 28. A second spring 29 is fixedly connected to the bottom of the groove, and the other end of the second spring 29 is fixedly connected to the bottom of the compression column 28.

[0023] In use, the user can hold the first connecting rod 10 and pull the handle 14 upwards. This causes the compression plate 19 to move closer to the isolation plate 31, compressing the first spring 25. Then, as the fixed protrusion 26 slides across the smooth surface of the trigger 27, the compression column 28 compresses the second spring 29. When the user releases their grip, the compression column 28, under the elastic force of the second spring 29, resets the trigger 27, and the fixed protrusion 26 is then held in place by the flat surface of the trigger 27. The user can then pull the trigger 27 downwards. This stretches the second spring 29, releasing the fixed protrusion 26, allowing the hammer 12 to strike the designated position due to the elastic release of the spring compressed by the first spring 25. Finally, the compression column 28, under the elastic force of the second spring 29, resets the trigger 27, completing one striking action. This device, by stretching the handle 14 to compress the first spring 25, converts the user's kinetic energy into the spring's potential energy and stores it, ensuring consistent striking force each time, making it more stable than manual striking.

[0024] In this embodiment, a fixing plate 5 is fixedly connected to the surface of the first rotating base 7. The fixing plate 5 has a plurality of positioning holes evenly opened around the first rotating base 7. It also includes a first fixing base 4, on the top of which a rubber protrusion 6 is fixedly connected. The top of the rubber protrusion 6 is located in the positioning hole on the surface of the fixing plate 5.

[0025] In this device, when the user rotates the first rotating base 7, it causes the fixing plate 5 to rotate. The rubber material of the rubber protrusion 6 provides a certain degree of damping. After the user finishes rotating, the rubber protrusion 6 will lock into the positioning hole of the fixing plate 5 for minor fixation. The positioning hole on the fixing plate 5 and the rubber protrusion 6 together form an adjustment mechanism. The damping sensation during rotation provides the operator with clear tactile feedback, facilitating fine adjustment of the rotation degree. The positioning hole provides multiple clear and repeatable positioning points.

[0026] In this embodiment, a rubber base 2 and a magnetic base 3 are fixedly connected to the bottom of the main body plate 1, and the height of the rubber base 2 is higher than that of the magnetic base 3.

[0027] The magnetic base 3 facilitates the attachment of the device to the steel-concrete composite structure. Since the rubber base 2 is made of wear-resistant rubber and is higher than the magnetic base 3, the magnetic base 3 will not directly contact the concrete, preventing wear. The magnetic base 3 utilizes magnetic force to quickly fix the device to the surface of the steel component in the steel-concrete composite structure, while the rubber base 2 prevents wear on the magnetic base 3.

[0028] In this embodiment, a second fixed base 15 and a recording device 30 are also fixedly installed on the top of the main body plate 1. A second rotating base 16 is rotatably connected to the top of the second fixed base 15 via a rotating shaft. A second rotating column base 17 is fixedly installed on the top of the second rotating base 16. A second rotating column 18 is rotatably connected to the inner wall of a hole opened on the surface of the second rotating column base 17. A second connecting rod 20 is fixedly installed on one side of the second rotating column 18. A third rotating column 21 is rotatably connected to the inner wall of a hole opened on the end surface of the second connecting rod 20. A third connecting rod 22 is fixedly installed on one side of the third rotating column 21. A microphone 23 is fixedly installed at the end of the third connecting rod 22, and a sound-focusing cover 24 for the microphone 23 to receive and focus sound is fixedly installed on its surface.

[0029] The user can freely move the microphone 23 to align it with the striking point. The sound-focusing cover 24 provides a more stable striking sound for the microphone 23. Finally, the striking sound is stored in the recording device 30, which allows the user to analyze whether the striking point is missed. The microphone 23 achieves multi-degree-of-freedom adjustment through multiple rotating shafts and connecting rods, which can accurately align it with the striking point and ensure the acquisition of a stable sound wave signal.

[0030] In this example, a steel pipe concrete void detection device allows the user to hold the first connecting rod 10, grip the handle 14 and pull upwards until the fixed protrusion 26 slides past the bottom of the trigger 27. The user can hear a click, then release the device, place it at the measurement position, move the microphone 23 to align it with the striking position, and finally release the hammer 12 to strike the designated position by pulling the trigger 27 upwards. The striking sound is then collected by the microphone 23 and recorded in the recording device 30 for the user to analyze the void location.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A concrete-filled steel tube void detection device, characterized by: The system includes a main body plate (1), a first fixed base (4) fixedly connected to the top of the main body plate (1), a first rotating base (7) rotatably connected to the top of the first fixed base (4) via a rotating shaft, a first rotating column base (8) fixedly installed on the top of the first rotating base (7), a first rotating column (9) rotatably connected to the inner wall of a hole opened on the surface of the first rotating column base (8), a first connecting rod (10) fixedly fixed on one side of the first rotating column (9), a sliding cylinder (11) fixedly connected to one end of the first connecting rod (10), an isolation plate (31) fixedly installed inside the sliding cylinder (11), and a hammer (12) slidably connected inside the sliding cylinder (11) and the isolation plate (31), and a compression plate (19) fixedly installed on the surface of the hammer (12). The compression plate (19) is located inside the sliding cylinder (11). A first spring (25) is fixedly installed on the top of the compression plate (19), and the other end of the first spring (25) is fixedly connected to the bottom of the isolation plate (31). A fixed protrusion (26) is fixedly installed on one side of the top of the isolation plate (31). A trigger (27) is rotatably connected to one side of the top of the sliding cylinder (11) via a rotating shaft. A compression column (28) is fixedly installed on one side of the trigger (27). A groove is opened on the sliding cylinder (11) corresponding to the bottom of the compression column (28). A second spring (29) is fixedly connected to the bottom of the groove. The other end of the second spring (29) is fixedly connected to the bottom of the compression column (28).

2. The device for detecting the void of the concrete-filled steel tube according to claim 1, characterized in that: One end of the hammer (12) is fitted with a rubber cap (13), and the other end is fixedly fitted with a handle (14).

3. The device for detecting the void of the concrete-filled steel tube according to claim 1, characterized in that: A fixing plate (5) is fixedly connected to the surface of the first rotating base (7), and multiple positioning holes are evenly opened around the first rotating base (7) on the fixing plate (5).

4. The device for detecting the void of the concrete-filled steel tube according to claim 3, characterized in that: The top of the first fixed base (4) is fixedly connected to a rubber protrusion (6), and the top of the rubber protrusion (6) is located in the positioning hole on the surface of the fixed plate (5).

5. The device for detecting the void of the concrete-filled steel tube according to claim 1, wherein: The bottom of the main plate (1) is fixedly connected to a rubber base (2) and a magnetic base (3), and the height of the rubber base (2) is higher than that of the magnetic base (3).

6. The device for detecting the void of the concrete-filled steel tube according to claim 1, characterized in that: The main body plate (1) is also fixedly installed with a second fixed base (15) and a recording device (30). The top of the second fixed base (15) is rotatably connected to a second rotating base (16) via a rotating shaft. The top of the second rotating base (16) is fixedly installed with a second rotating column base (17). The inner wall of the hole opened on the surface of the second rotating column base (17) is rotatably connected to a second rotating column (18).

7. The steel-concrete composite void detection device according to claim 6, characterized in that: A second connecting rod (20) is fixedly installed on one side of the second rotating column (18), and a third rotating column (21) is rotatably connected to the inner wall of the hole opened on the end surface of the second connecting rod (20). A third connecting rod (22) is fixedly installed on one side of the third rotating column (21).

8. The device for detecting the void of the concrete-filled steel tube according to claim 7, characterized in that: A microphone (23) is fixedly installed at the end of the third connecting rod (22), and a sound-collecting cover (24) for the microphone (23) is fixedly installed on its surface.

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