A nondestructive testing device for the thickness of a reinforcing layer of a beam yard

Abstract

The utility model relates to nondestructive testing device technical field especially relates to a beam field reinforcing steel bar protective layer thickness nondestructive testing device, it includes structure sleeve and reinforcing steel bar protective layer thickness detection subassembly, reinforcing steel bar protective layer thickness detection subassembly includes structure connecting seat, structure connecting seat side fixed mounting has the rotating drum, the rotating drum inboard rotatory mounting has the pivot, pivot side fixed connection has the installation flat plate, the installation flat plate bottom is screwed and is installed with a plurality of electromagnetic induction probe, pivot end fixed mounting has the big gear, structure connecting seat side fixed mounting has the torsion self -lock servo electric motor, the small gear is fixedly installed on torsion self -lock servo electric motor output, torsion self -lock servo electric motor output side wall fixed mounting has the torsion sensor. The utility model discloses the reinforcing steel bar protective layer thickness detection subassembly that sets up, has the advantage that the detection uses nimble, and the detection range is wider, and the detection precision is high.

Description

Technical Field

[0001] This utility model relates to the field of non-destructive testing equipment, and in particular to a non-destructive testing device for the thickness of the protective layer of steel reinforcement in a beam yard. Background Technology

[0002] In the production and quality inspection of structural beams at beam yards, the thickness of the reinforcing steel protective layer is a key indicator for measuring the safety and durability of structural beams. The efficiency and accuracy of its inspection directly affect the overall quality control of the project. Currently, the industry commonly uses manual handheld inspection equipment. This traditional inspection method is limited by the operating form of the equipment. When facing the inspection needs of structural beams of different heights, it is necessary to frequently adjust the operator's position or change the inspection angle. This not only results in poor operational flexibility but also easily leads to blind spots in the inspection range due to human error, making it difficult to fully cover all inspection areas of the structural beam, which greatly restricts the overall efficiency of the inspection work.

[0003] Meanwhile, traditional testing methods often require temporary ladders or scaffolding to address special testing areas such as the top of beams, which are difficult for people to touch directly. This not only increases preparation time and labor costs but also poses certain safety hazards for working at heights. Furthermore, most existing testing equipment uses a single electromagnetic induction probe design, which is easily affected by the surrounding environment when probing the depth of the reinforcing steel, resulting in large fluctuations in the test data. This makes it difficult to meet the increasingly demanding requirements of modern beam yards for the accuracy of reinforcing steel cover thickness testing. These technical pain points mean that traditional testing devices are no longer suitable for the efficient, accurate, and safe testing operations required in beam yards.

[0004] To address the shortcomings of the aforementioned technologies, we propose a non-destructive testing device for the thickness of the concrete cover for steel reinforcement in beam yards. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a non-destructive testing device for the thickness of the concrete cover of steel bars in beam yards.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A non-destructive testing device for the thickness of the concrete cover of reinforcing bars in a beam yard includes a structural sleeve and a reinforcing bar cover thickness detection component. The reinforcing bar cover thickness detection component includes a structural connecting seat, a rotating cylinder fixedly installed on the side of the structural connecting seat, a rotating shaft rotatably installed inside the rotating cylinder, a mounting plate fixedly connected to the side of the rotating shaft, a plurality of electromagnetic induction probes screwed to the bottom of the mounting plate, a large gear fixedly installed at the end of the rotating shaft, a torque self-locking servo electric motor fixedly installed on the side of the structural connecting seat, a small gear fixedly installed on the output end of the torque self-locking servo electric motor, and a torque sensor fixedly installed on the side wall of the output end of the torque self-locking servo electric motor.

[0008] Furthermore, a telescopic slide rod is slidably installed on the upper side of the structural sleeve, and the structural connecting seat is fixedly installed on the top of the telescopic slide rod.

[0009] Furthermore, a limiting protrusion is provided on the outer wall of the telescopic slide rod, and the limiting protrusion is slidably engaged with the inner wall of the structural sleeve.

[0010] Furthermore, a battery protective cover is fixedly installed on the outer wall of the structural sleeve, a storage battery is fixedly installed inside the battery protective cover, and a controller is fixedly installed on the outer wall of the battery protective cover.

[0011] Furthermore, a charging interface and a data transmission interface are provided on the side wall of the battery protective cover. The charging interface is electrically connected to the battery, and the data transmission interface is electrically connected to the controller.

[0012] Furthermore, a rubber sleeve is fitted on the outer side of the lower end of the structural sleeve, and a limiting screw is screwed onto the outer wall of the upper end of the structural sleeve, the limiting screw being screwed through to the inner side of the structural sleeve.

[0013] Furthermore, a housing cover is screwed onto the side wall of the structural connecting seat, and the housing cover is positioned outside the large gear and the small gear, with the rotating shaft rotating through the housing cover.

[0014] Furthermore, a protective cover is screwed onto the lower side of the mounting plate, and the lower side of the protective cover has several openings corresponding to the electromagnetic induction probes, which are distributed in a matrix at equal intervals.

[0015] Compared with related technologies, the non-destructive testing device for the thickness of the concrete cover of steel bars in beam yards proposed in this utility model has the following advantages:

[0016] This invention discloses a non-destructive testing device for the thickness of the concrete cover of reinforcing bars in a beam yard. The device features a rebar cover thickness detection component whose height can be adjusted by a structural sleeve and sliding rod, facilitating the detection of different beam heights. Compared to traditional handheld devices, it offers advantages in flexibility and a wider detection range. Furthermore, the entire rebar cover thickness detection component is adjustable in angle and self-locking after adjustment by a torque-driven self-locking servo motor, allowing for detection of beam tops that are inaccessible by hand. Unlike conventional detection devices that require a temporary ladder to access the beam, this device offers greater convenience. Additionally, it employs a matrix-designed electromagnetic induction probe to detect rebar depth, providing higher accuracy compared to traditional single-probe detection methods. In summary, this invention, with its rebar cover thickness detection component, offers advantages such as flexible use, a wider detection range, and high accuracy. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard, as proposed in this utility model. Figure 1 ;

[0018] Figure 2 A three-dimensional structural diagram of a non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard, as proposed in this utility model. Figure 2 ;

[0019] Figure 3 Schematic diagram of the three-dimensional structure of the rebar cover thickness detection component Figure 1 ;

[0020] Figure 4 Schematic diagram of the three-dimensional structure of the rebar cover thickness detection component Figure 2 ;

[0021] Figure 5 This is a three-dimensional structural breakdown diagram of the rebar cover thickness detection component.

[0022] In the diagram: 1. Structural sleeve; 2. Rubber grip; 3. Battery protective cover; 4. Controller; 5. Telescopic slide bar; 6. Limit screw; 7. Rebar protective layer thickness detection component; 71. Structural connecting seat; 72. Rotary drum; 73. Rotating shaft; 74. Mounting plate; 75. Electromagnetic induction probe; 76. Protective cover; 77. Chassis cover; 78. Through port; 79. Large gear; 710. Torque self-locking servo electric motor; 711. Small gear; 8. Charging interface; 9. Data transmission interface. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Reference Figures 1-5A non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard includes a structural sleeve 1 and a steel cover thickness testing component 7. The steel cover thickness testing component 7 includes a structural connecting seat 71, a rotating cylinder 72 fixedly installed on the side of the structural connecting seat 71, a rotating shaft 73 rotatably installed inside the rotating cylinder 72, a mounting plate 74 fixedly connected to the side of the rotating shaft 73, a plurality of electromagnetic induction probes 75 screwed to the bottom of the mounting plate 74, a large gear 79 fixedly installed at the end of the rotating shaft 73, a torque self-locking servo electric motor 710 fixedly installed on the side of the structural connecting seat 71, a small gear 711 fixedly installed on the output end of the torque self-locking servo electric motor 710, and a torque sensor fixedly installed on the side wall of the output end of the torque self-locking servo electric motor 710.

[0025] Through the above-described configuration, the torque sensor enables the controller 4 to sense the torque output of the torque self-locking servo motor 710 in real time. Especially when measuring the top of the beam, which is invisible to the naked eye, when the torque output of the torque self-locking servo motor 710 shows resistance, it indicates that the protective cover 76 on the underside of the mounting plate 74 is in contact with the top of the beam, causing the reaction force of the top of the beam to exhibit torque resistance during rotation. At this time, the controller 4 immediately controls the torque self-locking servo motor 710 to stop driving. The adjusted angle at this time allows the electromagnetic induction probe 75 installed on the underside of the mounting plate 74 to be perpendicular to the top of the beam for detection, ensuring detection accuracy.

[0026] In this configuration, a housing cover 77 is screwed onto the side wall of the structural connecting seat 71. The housing cover 77 covers the outside of the large gear 79 and the small gear 711, and the rotating shaft 73 rotates through the housing cover 77.

[0027] Through the above-described configuration, the chassis cover 77 provides protection for the gear meshing area.

[0028] In this method, a protective cover 76 is screwed onto the lower side of the mounting plate 74. The lower side of the protective cover 76 has several openings 78 corresponding to the electromagnetic induction probes 75. The electromagnetic induction probes 75 are distributed in a matrix at equal intervals.

[0029] With the above configuration, the port 78 provides a detection port for the electromagnetic induction probe 75, and the protective cover 76 provides protection for the electromagnetic induction probe 75, preventing the electromagnetic induction probe 75 from rubbing against the beam surface during the detection process. After the protective layer is detected, the thickness of the protective cover 76 can be automatically deducted from the internal thickness of the controller 4. In addition, the multiple sets of electromagnetic induction probes 75 distributed in a matrix can detect multiple sets of data. The controller 4 uses the averaging method to improve the detection accuracy.

[0030] In this method, a telescopic slide rod 5 is slidably installed on the upper side of the structural sleeve 1, and a structural connecting seat 71 is fixedly installed on the top of the telescopic slide rod 5. A limit protrusion is provided on the outer wall of the telescopic slide rod 5, and the limit protrusion is slidably engaged with the inner wall of the structural sleeve 1.

[0031] By setting the limit protrusion in the above manner, the rotational freedom of the telescopic slide rod 5 is restricted.

[0032] In this method, a battery protective cover 3 is fixedly installed on the outer wall of the structural sleeve 1, a storage battery is fixedly installed on the inner side of the battery protective cover 3, a controller 4 is fixedly installed on the outer wall of the battery protective cover 3, and a charging interface 8 and a data transmission interface 9 are provided on the side wall of the battery protective cover 3. The charging interface 8 is electrically connected to the storage battery, and the data transmission interface 9 is electrically connected to the controller 4.

[0033] With the above setup, charging interface 8 is used to charge the battery, and data transmission interface 9 is used to export the data structure stored inside controller 4. This eliminates the need for measurement personnel to record the data, and the data can be exported uniformly later, facilitating the comprehensive analysis of test results.

[0034] The working principle of the non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard provided by this utility model is as follows:

[0035] When using this device for inspection, first adjust the overall height of the device according to the height requirements of the structural beam to be inspected: the operator can push the telescopic slide rod 5 to slide along the inner wall of the structural sleeve 1. The limiting protrusion on the outer wall of the telescopic slide rod 5 will restrict its rotational freedom to ensure directional stability during the adjustment process. After adjusting to the appropriate height, tighten the limiting screw 6 on the upper outer wall of the structural sleeve 1. The limiting screw 6 will press and fix the telescopic slide rod 5, thereby locking the height of the device. If it is necessary to inspect parts that are difficult for humans to touch directly, such as the top of the beam, the controller 4 can be used. The torque self-locking servo electric motor 710 is started, and its output end drives the pinion 711 to rotate. The pinion 711 meshes with the large gear 79 at the end of the rotating shaft 73, causing the rotating shaft 73 to rotate inside the rotating cylinder 72. This, in turn, drives the mounting plate 74 and the electromagnetic induction probe 75 at the bottom to adjust the angle. At the same time, the torque sensor at the output end of the torque self-locking servo electric motor 710 monitors the torque change in real time. When the protective cover 76 contacts the top of the beam and generates torque resistance, the controller 4 immediately controls the motor to stop running and self-lock, completing the precise positioning of the detection angle.

[0036] During the testing process, the electromagnetic induction probes 75, arranged in a matrix on the underside of the mounting plate 74, contact the surface of the structural beam through the openings 78 of the protective cover 76. Multiple sets of electromagnetic induction probes 75 simultaneously detect the depth of the reinforcing bars and transmit the data to the controller 4. The controller 4 performs average processing on the multiple sets of detection data to improve the detection accuracy (the thickness of the protective cover 76 is automatically deducted during the calculation). The power required by the device is provided by the battery inside the battery protective cover 3. The charging interface 8 can periodically replenish the battery. After the test is completed, the operator can export the detection data stored in the controller 4 through the data transmission interface 9, which facilitates the subsequent comprehensive analysis of the test results. This eliminates the need for manual data recording and improves the testing efficiency.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard, characterized in that, Includes structural sleeve (1) and rebar cover thickness detection assembly (7); The steel reinforcement protective layer thickness detection component (7) includes a structural connecting seat (71), a rotating cylinder (72) is fixedly installed on the side of the structural connecting seat (71), a rotating shaft (73) is rotatably installed on the inner side of the rotating cylinder (72), a mounting plate (74) is fixedly connected to the side of the rotating shaft (73), a plurality of electromagnetic induction probes (75) are screwed to the bottom of the mounting plate (74), a large gear (79) is fixedly installed at the end of the rotating shaft (73), a torque self-locking servo electric motor (710) is fixedly installed on the side of the structural connecting seat (71), a small gear (711) is fixedly installed on the output end of the torque self-locking servo electric motor (710), and a torque sensor is fixedly installed on the side wall of the output end of the torque self-locking servo electric motor (710).

2. The non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard according to claim 1, characterized in that, The upper side of the structural sleeve (1) is slidably mounted with a telescopic slide rod (5), and the structural connecting seat (71) is fixedly mounted on the top of the telescopic slide rod (5).

3. The non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard according to claim 2, characterized in that, The telescopic slide rod (5) has a limiting protrusion on its outer wall, and the limiting protrusion is slidably engaged with the inner wall of the structural sleeve (1).

4. The non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard according to claim 1, characterized in that, A battery protective cover (3) is fixedly installed on the outer wall of the structural sleeve (1), a storage battery is fixedly installed on the inner side of the battery protective cover (3), and a controller (4) is fixedly installed on the outer wall of the battery protective cover (3).

5. The non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard according to claim 4, characterized in that, The battery protective cover (3) is provided with a charging interface (8) and a data transmission interface (9) on its side wall. The charging interface (8) is electrically connected to the battery, and the data transmission interface (9) is electrically connected to the controller (4).

6. The non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard according to claim 1, characterized in that, A rubber grip sleeve (2) is fitted on the outer side of the lower end of the structural sleeve (1), and a limiting screw (6) is screwed onto the outer wall of the upper end of the structural sleeve (1). The limiting screw (6) is screwed through to the inner side of the structural sleeve (1).

7. The non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard according to claim 1, characterized in that, A housing cover (77) is screwed onto the side wall of the structural connecting seat (71). The housing cover (77) covers the outside of the large gear (79) and the small gear (711). The rotating shaft (73) rotates through the housing cover (77).

8. The non-destructive testing device for the thickness of the concrete cover of steel bars in a beam yard according to claim 1, characterized in that, A protective cover (76) is screwed onto the lower side of the mounting plate (74). The lower side of the protective cover (76) has several openings (78) corresponding to the electromagnetic induction probes (75). The electromagnetic induction probes (75) are distributed in a matrix at equal intervals.

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