Steel bar corrosion detector for detecting reinforced concrete structure

Abstract

The utility model discloses a steel bar corrosion detector for detecting a reinforced concrete structure, which comprises a detector host electrically connected with a detection component through an electrode signal line. The detection assembly comprises a supporting rod, a pulley assembly is arranged at the lower end of the supporting rod, a positioning rod is fixedly connected to the supporting rod, a control handle is fixedly connected to the upper end of the supporting rod, and a driving motor is further fixedly connected to the control handle. According to the utility model, the detection assembly is arranged and the supporting rod is matched with the pulley assembly, so that a user can conveniently move the detection assembly, the control handle is matched with the driving motor, the position of the electrode tip structure can be adjusted, the user does not need to bend down for operation, detection can be carried out in a standing posture, and the position of the electrode tip can be adjusted more accurately; the detection point marking demand is reduced, the detection operation is reduced, the detection efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of engineering testing equipment technology, and in particular to a steel corrosion detector for testing reinforced concrete structures. Background Technology

[0002] In modern reinforced concrete structures, steel corrosion has become a significant global problem. Steel corrosion damages the interlocking force of reinforced concrete, reduces bond strength, and greatly diminishes load-bearing capacity and safety performance. A steel corrosion detector is used to detect the degree of steel corrosion. Its working principle is to use the natural potential method to assess the corrosion characteristics of steel bars in concrete structures and components.

[0003] In existing technologies, traditional steel corrosion detectors require users to first mark grid-like detection points on the building structure, and then hold the dual-electrode probe to align with the detection points for testing. This operation is cumbersome, and users need to align with multiple detection points at once during the testing process, resulting in low detection efficiency and long testing time. To address these issues, we propose a steel corrosion detector for reinforced concrete structures. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a steel corrosion detector for reinforced concrete structures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A steel corrosion detector for inspecting reinforced concrete structures includes a main unit, wherein the main unit is electrically connected to a detection component via an electrode signal line;

[0007] The detection assembly includes a support rod with a pulley assembly at its lower end and a positioning rod fixedly connected to it. A control handle is fixedly connected to the upper end of the support rod, and a drive motor is also fixedly connected to the control handle. A shaft is fixedly connected to the output end of the drive motor. A driven shaft is rotatably connected to the lower end of the support rod. The shaft and driven shaft are connected via a belt drive, and a slider is fixedly connected to the belt. A crossbeam is slidably connected to the support rod, and an electrode head structure is provided on the crossbeam. The crossbeam is fixedly connected to the slider.

[0008] Preferably, the electrode head structure includes a connecting rod slidably connected to the crossbeam, a detection electrode is detachably connected to the connecting rod, the detection electrode is electrically connected to the electrode signal line, a compression spring is fixedly connected inside the crossbeam, and the end of the compression spring away from the crossbeam is abutted against the connecting rod. An electromagnet is also fixedly connected inside the crossbeam, and a magnetic block that cooperates with the electromagnet is provided on the connecting rod.

[0009] Preferably, the pulley assembly includes a sliding sleeve slidably connected to the support rod, a connecting rod rotatably connected to the lower end of the sliding sleeve, pulleys rotatably connected to both ends of the connecting rod, a groove formed in the middle of the connecting rod, and a locking block matching the groove fixedly connected to the lower end of the support rod.

[0010] Preferably, the upper end of the support rod is detachably connected to a bracket, and the main unit of the detector is detachably connected to the bracket.

[0011] Preferably, the end of the positioning rod away from the support rod is threadedly connected to an adjusting rod.

[0012] Preferably, a limiting sleeve is slidably connected to the support rod, and a stop block matching the limiting sleeve is fixedly connected to one end of the connecting rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting up a detection component and using a support rod and pulley assembly, facilitates the user's movement of the detection component. Furthermore, by controlling the handle and driving motor, the position of the electrode head structure can be adjusted, eliminating the need for the user to bend over and allowing for detection while standing. It also enables more precise adjustment of the electrode head position, reduces the need for marking detection points, reduces detection operations, improves detection efficiency, and reduces labor intensity.

[0015] 2. This utility model, by setting up an electrode head structure and using an electromagnet in conjunction with a compression spring, facilitates the control of the separation and closeness of the electrode head from the concrete structure, making operation more convenient. By setting up a sliding sleeve in conjunction with a connecting rod, the user can insert the locking block into the sink groove during testing to ensure that the connecting rod remains in a horizontal state, making it convenient for the user to move the entire testing component along the concrete structure. Furthermore, after use, the testing component can be easily stored away. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a steel corrosion detector for reinforced concrete structures proposed in this utility model.

[0017] Figure 2 This is a partial structural schematic diagram of a steel corrosion detector for inspecting reinforced concrete structures proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the electrode head structure of a steel corrosion detector for reinforced concrete structure testing proposed in this utility model.

[0019] In the diagram: 1. Main unit of the detector; 2. Support rod; 3. Positioning rod; 4. Control handle; 5. Drive motor; 6. Shaft; 7. Driven shaft; 8. Cross frame; 9. Slider; 10. Connecting rod; 11. Detection electrode; 12. Compression spring; 13. Electromagnet; 14. Sliding sleeve; 15. Sink; 16. Clamping block; 17. Bracket; 18. Adjusting rod; 19. Limiting sleeve; 20. Stop. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3 A steel corrosion detector for testing reinforced concrete structures includes a main unit, wherein the main unit can be a conventional detector, and the main unit is electrically connected to a detection component via an electrode signal line.

[0022] The detection component includes a support rod, a pulley assembly at the lower end of the support rod, a positioning rod fixedly connected to the support rod, a control handle fixedly connected to the upper end of the support rod, a drive motor fixedly connected to the control handle, a shaft fixedly connected to the output end of the drive motor, a driven shaft rotatably connected to the lower end of the support rod, the shaft and the driven shaft being connected via belt drive, a slider fixedly connected to the belt, a crossbar slidably connected to the support rod, an electrode head structure being provided on the crossbar, and the crossbar being fixedly connected to the slider.

[0023] In this design, the support rod is vertically positioned. During inspection, the user holds the control handle and slides the support rod along the concrete structure to adjust its position, aligning the electrode head with the inspection point. Then, the user pushes the support rod to bring the positioning rod into contact with the concrete structure. The user can then control the drive motor via the control handle. The drive motor rotates, moving the belt and causing the crossbeam to move up and down. This allows the user to control the electrode head to inspect multiple vertical inspection points for steel corrosion. Furthermore, by controlling the crossbeam's vertical movement via the drive motor, marking inspection points only requires marking their vertical positions and then controlling the electrode head's fixed-length vertical movement to complete the inspection. This reduces both the workload of the inspection and marking operations, improves inspection efficiency, and meets the user's practical needs.

[0024] Furthermore, the electrode head structure includes a connecting rod that is slidably connected to the crossbar, a detection electrode that is detachably connected to the connecting rod, the detection electrode being electrically connected to the electrode signal line, a compression spring that is fixedly connected inside the crossbar, and the end of the compression spring away from the crossbar abutting against the connecting rod, an electromagnet that is also fixedly connected inside the crossbar, and a magnetic block that cooperates with the electromagnet is provided on the connecting rod;

[0025] In this design, the detection electrode and the connecting rod are detachably connected. This allows users to perform single-electrode testing in certain situations, or to test corners or complex environments where some testing components cannot detect. The detection electrode can be detached, and an electromagnet is used in conjunction with a compression spring. During the testing operation, the electromagnet is controlled to move, and the magnetic force of the electromagnet attracts the magnetic block, causing the connecting rod to move towards the crossbar. This separates the detection electrode from the wall, without hindering the vertical movement of the electrode head structure or causing wear to the electrode head structure during vertical movement.

[0026] Furthermore, the pulley assembly includes a sliding sleeve that is slidably connected to the support rod, a connecting rod that is rotatably connected to the lower end of the sliding sleeve, and pulleys that are rotatably connected to both ends of the connecting rod, wherein the pulleys are spherical wheels, a groove is formed in the middle of the connecting rod, and a locking block that matches the groove is fixedly connected to the lower end of the support rod.

[0027] In this design, the sliding sleeve can slide up and down relative to the support rod. During the testing operation, the user inserts the locking block into the sink, which keeps the connecting rod and the support rod perpendicular to each other, making it easy to slide the support rod on the ground. When storing the device after use, the user lifts the support rod upward to separate the locking block from the sink, and then rotates the connecting rod to make it parallel to the support rod.

[0028] Furthermore, the upper end of the support rod is detachably connected to a bracket, and the main unit of the detector is detachably connected to the bracket;

[0029] The bracket is provided to facilitate the user's placement of the main unit of the detector, especially when controlling the detection components to move the electrode head structure, so that the detection results can be read, making it convenient for the user to operate.

[0030] Furthermore, the end of the positioning rod furthest from the support rod is threadedly connected to an adjusting rod. The positioning rod is used to limit the distance between the support rod and the concrete structure. The threaded adjusting rod allows the user to adjust the length of the positioning rod according to the model of the detection electrode. There are two or more positioning rods.

[0031] Furthermore, a limiting sleeve is slidably connected to the support rod, and a stop block matching the limiting sleeve is fixedly connected to one end of the connecting rod. The limiting sleeve is slidably connected to the support rod through a damping sliding sleeve. The limiting sleeve is used to fit onto the stop block when storing the detection component, so that the connecting rod and the support rod remain parallel.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A steel corrosion detector for reinforced concrete structures, comprising a main unit (1), characterized in that, The main unit of the detector (1) is electrically connected to the detection components via electrode signal lines; The detection component includes a support rod (2), a pulley assembly is provided at the lower end of the support rod (2), and a positioning rod (3) is fixedly connected to the support rod (2). A control handle (4) is fixedly connected to the upper end of the support rod (2), and a drive motor (5) is also fixedly connected to the control handle (4). A shaft (6) is fixedly connected to the output end of the drive motor (5). A driven shaft (7) is rotatably connected to the lower end of the support rod (2). The shaft (6) and the driven shaft (7) are connected by belt drive, and a slider (9) is fixedly connected to the belt. A crossbeam (8) is slidably connected to the support rod (2), and an electrode head structure is provided on the crossbeam (8). The crossbeam (8) is fixedly connected to the slider (9).

2. The steel corrosion detector for reinforced concrete structures according to claim 1, characterized in that, The electrode head structure includes a connecting rod (10) that is slidably connected to the cross frame (8). A detection electrode (11) is detachably connected to the connecting rod (10). The detection electrode (11) is electrically connected to the electrode signal line. A compression spring (12) is fixedly connected inside the cross frame (8), and the end of the compression spring (12) away from the cross frame (8) is abutted against the connecting rod (10). An electromagnet (13) is also fixedly connected inside the cross frame (8). A magnetic block that cooperates with the electromagnet (13) is provided on the connecting rod (10).

3. The steel corrosion detector for reinforced concrete structures according to claim 1, characterized in that, The pulley assembly includes a sliding sleeve (14) that is slidably connected to the support rod (2). The lower end of the sliding sleeve (14) is rotatably connected to a connecting rod. Both ends of the connecting rod are rotatably connected to pulleys. A groove (15) is provided in the middle of the connecting rod. A locking block (16) that matches the groove (15) is fixedly connected to the lower end of the support rod (2).

4. The steel corrosion detector for reinforced concrete structures according to claim 1, characterized in that, The upper end of the support rod (2) is detachably connected to the bracket (17), and the main unit of the detector is detachably connected to the bracket (17).

5. A steel corrosion detector for reinforced concrete structures according to claim 1, characterized in that, The end of the positioning rod (3) away from the support rod (2) is threaded with an adjusting rod (18).

6. A steel corrosion detector for reinforced concrete structures according to claim 3, characterized in that, The support rod (2) is slidably connected to a limiting sleeve (19), and one end of the connecting rod is fixedly connected to a stop (20) that matches the limiting sleeve (19).

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