Portable reinforcing steel bar flaw detector for building safety detection

Abstract

The invention discloses a portable reinforcing steel bar flaw detector for building safety detection, and particularly relates to the technical field of reinforcing steel bar flaw detection, the portable reinforcing steel bar flaw detector comprises a base, the base is provided with a package detection assembly, the package detection assembly comprises two sliding seats arranged on the base, and the top of each sliding seat is provided with a clamping plate; and one end of each of the two clamping plates is slidably connected with a limiting cylinder. Through the detection plate and a hinged linkage rod structure, in cooperation with elastic reset of a spring, a sliding ball on the detection plate is tightly attached to the surface of a steel bar and adapts to different diameters, the shooting module synchronously images around the steel bar, the problem of missing detection of traditional linear scanning is thoroughly solved, the crack and corrosion detection rate is increased, the detection plate axially rotates around the steel bar, and the detection efficiency is improved. Surrounding scanning is achieved, no-dead-corner detection of cracks, defects and other problems is guaranteed, friction is reduced through rolling contact of the sliding balls, the spring dynamically compensates the gap, it is guaranteed that the distance between the detection plate and the reinforcing steel bar is constant, and detection precision is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar flaw detection, and more particularly to a portable steel bar flaw detector for building safety detection. Background Art

[0002] Metal flaw detection is to detect cracks or defects inside metal materials or components. Commonly used flaw detection methods include: X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, penetrant flaw detection, eddy current flaw detection, gamma ray flaw detection and other methods.

[0003] Among them, the patent with announcement number CN222913638U discloses a multifunctional metal tubular parts inspection equipment, which can perform flaw detection on straight and curved metal pipe fittings, has small limitations and good versatility; it includes a base plate and a probe; it also includes two slide rails, two cross beams, two columns, a flaw detection slider and a plurality of rollers, the two slide rails are parallelly mounted on the left and right sides of the upper end surface of the base plate, the two cross beams are slidably mounted on the two slide rails through the sliders, the two cross beams are arranged perpendicular to the two slide rails, the two columns are slidably mounted on the two cross beams through the sliders, the tops of the two columns are each equipped with a clamping assembly, the clamping assembly is used to clamp the end of the metal pipe fitting, the flaw detection slider is sleeved on the metal pipe fitting, the probe is mounted on the flaw detection slider, the probe head of the probe faces the metal pipe fitting, a plurality of rollers are rotatably mounted on the inner wall of the flaw detection slider, and the plurality of rollers are respectively connected to the upper and lower parts of the metal pipe fitting in a rolling manner;

[0004] When this structure is in use, the positions of the two crossbeams on the two slide rails are adjusted according to the shape of the metal pipe. The flaw detection slider is mounted on the metal pipe, and multiple rollers are connected to the upper and lower parts of the metal pipe in a rolling manner. The probe is turned on, and the rotation of the multiple rollers drives the flaw detection slider to move along the metal pipe, so that the probe can perform flaw detection on the entire metal pipe. However, when this structure is in use, the adjustment of the crossbeams on the slide rails cannot realize the function of wrapping detection of the workpiece. The flaw detection slider moves along the metal pipe to only realize the function of linear detection, which has limitations in detection. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a portable steel bar flaw detector for building safety inspection, which aims to solve the problems raised in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a portable steel bar flaw detector for building safety inspection comprises a base, on which a package detection component is provided;

[0007] The package detection assembly includes two slides arranged on a base, and a clamping plate is provided on the top of each slide. One end of each clamping plate is slidably connected to a limiting cylinder. A conveyor belt is provided at the end of the limiting cylinder away from the clamping plate, and an industrial camera is provided at the bottom of the conveyor belt.

[0008] Several detection plates are distributed in the limiting cylinder, and each detection plate is provided with a shooting module for shooting detection. One end of each of the detection plates is hinged with a linkage rod, and springs are provided on both sides of each linkage rod, and one end of each of the springs extends to the corresponding detection plate.

[0009] Optionally, in a possible embodiment, a plurality of the detection plates are respectively rotatably connected with a plurality of sliding balls, a mounting plate is provided in the middle of the limiting cylinder, a plurality of electric push rods are provided on the mounting plate, and an output end of each of the electric push rods is provided with a support ring, one end of the linkage rod is hinged with a hinge rod, the hinge rod is located at the top of the support ring and is hinged to the support ring, the bottom end of the linkage rod is hinged with a hinge seat, the hinge seat is fixed on the mounting plate, a first gear is installed on the side of the mounting plate away from the detection plate, a second gear is provided on the outer side of the first gear, the second gear extends to the surface of the limiting cylinder, a motor for driving the second gear to rotate is provided on the outer side of the limiting cylinder, and the second gear is meshed with the first gear;

[0010] Optionally, in a possible embodiment, two first electric slide rails are provided on one side of the conveyor belt, and each of the first electric slide rails is provided with a calibration rod that can be adjusted up and down, a second electric slide rail is provided on one side of the limit cylinder, the second electric slide rail is mounted on the base through bolts, and the second electric slide rail is provided with a displacement sensing head that can be adjusted up and down, a docking sleeve is provided on one end of the two splints away from the limit cylinder, and a blocking wheel is provided on each of the docking sleeves, the two docking sleeves are plugged together, and the blocking wheel is fixed on the outside of the docking sleeve, the two slide seats are slidably connected to the base, and the bottom of each slide seat is threadedly connected to a forward and reverse screw rod, and the forward and reverse screw rod is rotatably connected to the base;

[0011] The technical effects and advantages of the present invention are as follows:

[0012] 1. This invention utilizes a circularly distributed detection plate and an articulated linkage structure, coupled with a spring-loaded return mechanism, to ensure the sliding ball on the detection plate adheres tightly to the surface of the rebar, adapting to varying diameters. The camera module simultaneously captures images around the rebar, completely eliminating the missed detection issues associated with traditional linear scanning and improving the detection rate of cracks and corrosion.

[0013] 2. The motor of the present invention drives the first gear and the second gear to engage and rotate, driving the detection plate to rotate around the axial direction of the steel bar to achieve surround scanning, ensuring that cracks, defects and other problems are detected without blind spots. The sliding ball reduces friction through rolling contact, and the spring dynamically compensates for the gap, ensuring a constant distance between the detection plate and the steel bar, thereby ensuring detection accuracy.

[0014] 3. The present invention drives the slide seat to slide through positive and negative screw rods, which can flexibly adjust the spacing between the splints to adapt to steel bars of different diameters; the electric push rod pushes the support ring to move, and the linkage rod and the spring are linked to make the detection plate automatically fit the surface of the steel bar, without the need for frequent manual calibration. At the same time, the first electric slide rail adjusts the position of the calibration rod, and cooperates with the displacement sensor head on the second electric slide rail to monitor the coaxiality of the steel bar and the limit cylinder in real time to avoid detection errors caused by offset. The docking sleeve and the blocking wheel form a supporting cavity to prevent the steel bar from shaking during transportation. Combined with the pre-detection function of the conveyor belt and the industrial camera, preliminary screening and positioning of the steel bar surface are achieved, which is suitable for mobile detection needs on construction sites.

[0015] In summary, through the coordinated use of various components, the inspection plate and articulated linkage structure, along with the spring's elastic reset function, ensure that the sliding ball on the inspection plate closely adheres to the rebar surface, adapting to varying diameters. The camera module simultaneously captures images around the rebar, completely eliminating the missed detection issues associated with traditional linear scanning and improving the detection rate of cracks and corrosion. The inspection plate rotates around the rebar's axis, enabling surround scanning and ensuring comprehensive detection of cracks and defects. Furthermore, the sliding ball's rolling contact reduces friction, while the spring dynamically compensates for gaps, ensuring a constant distance between the inspection plate and the rebar, guaranteeing accurate detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. Furthermore, the drawings described below are schematic diagrams and are not intended to limit the actual dimensions of the products, actual processes of the methods, actual timing of signals, and the like involved in the embodiments of the present disclosure.

[0017] Figure 1 It is the main view of the overall structure of the present invention.

[0018] Figure 2 It is a side view of the overall structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the support ring, the limiting cylinder and the detection plate of the present invention being installed together.

[0020] Figure 4 Schematic diagram of the detection plate, linkage rod, first gear and second gear of the present invention.

[0021] Figure 5 Schematic diagram of the mounting plate, electric push rod and hinged seat of the present invention.

[0022] Figure 6 This is a schematic diagram of the detection plate, shooting module, linkage rod and support ring of the present invention installed together.

[0023] Figure 7 Schematic diagram of the slide, splint and blocking wheel of the present invention.

[0024] The accompanying drawings are marked as follows: 1. base; 2. slide; 3. splint; 4. limiting cylinder; 5. conveyor belt; 6. industrial camera; 7. detection plate; 8. shooting module; 9. linkage rod; 10. spring; 11. sliding ball; 12. mounting plate; 13. hinged rod; 14. support ring; 15. electric push rod; 16. first gear; 17. second gear; 18. hinged seat; 19. motor; 20. first electric slide; 21. calibration rod; 22. second electric slide; 23. displacement sensor head; 24. docking sleeve; 25. blocking wheel; 26. forward and reverse screw rods. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] As attached Figure 1 -Attached Figure 7 The portable rebar flaw detector for building safety inspections shown here utilizes a wrapped detection assembly mounted on a base 1. Through a ring-shaped detection plate 7 and an articulated linkage rod 9, the elastic reset mechanism of a spring 10 ensures that the sliding ball 11 on the detection plate 7 adheres tightly to the rebar surface, adapting to varying diameters. A camera module 8 simultaneously captures images around the rebar, completely eliminating the missed detection issues associated with traditional linear scanning and improving the detection rate of cracks and corrosion. The detailed assembly structure is as follows:

[0027] The package inspection assembly includes two slides 2 mounted on a base 1. A clamping plate 3 is provided on the top of each slide 2. One end of each clamping plate 3 is slidably connected to a limiting cylinder 4. A conveyor belt 5 is provided on the end of the limiting cylinder 4 away from the clamping plate 3. An industrial camera 6 is provided at the bottom of the conveyor belt 5.

[0028] As attached Figure 1 、 2 As shown in FIG7 , by adjusting the positions of the two slides 2, the function of adjusting the distance between the two clamping plates 3 is realized, so that workpieces of different sizes pass through the limiting cylinder 4 and extend into the clamping plates 3. At the same time, the workpieces are first transported by the conveyor belt 5, and the industrial camera 6 takes pictures and detects the workpieces.

[0029] Several detection plates 7 are distributed in the limiting cylinder 4, and each detection plate 7 is provided with a shooting module 8 for shooting detection. One end of each of the detection plates 7 is hinged with a linkage rod 9, and both sides of each linkage rod 9 are provided with a spring 10, and one end of each spring 10 extends to the corresponding detection plate 7;

[0030] As attached Figure 3 、 4 As shown in 6, the detection plates 7 are distributed along the axial circumference of the limiting cylinder 4 so that when the workpiece is inserted into the limiting cylinder 4, each detection plate 7 can be wrapped around the outside of the workpiece, and the shooting module 8 can perform wrapped shooting detection on the workpiece. At the same time, the detection plate 7 is hinged to the linkage rod 9 so that when the linkage rod 9 is deflected, the detection plate 7 contacts the workpiece. The detection plate 7 can be adjusted in angle at the end of the linkage rod 9 to ensure the shooting detection accuracy of the shooting module 8. At the same time, when the detection plate 7 is deflected, the spring 10 can be subjected to force, and the spring 10 is reset by its own elasticity so that the detection plate 7 can fit tightly with the workpiece.

[0031] A plurality of sliding balls 11 are rotatably connected to the plurality of detection plates 7. A mounting plate 12 is provided in the middle of the limit cylinder 4. A plurality of electric push rods 15 are provided on the mounting plate 12. A support ring 14 is provided at the output end of each electric push rod 15. Figure 3 、 4 As shown in Figure 6, the electric push rod 15 drives the support ring 14 to move, so as to adjust the deflection angle of the linkage rod 9. The setting of the sliding ball 11 facilitates that when the detection plate 7 abuts against the outside of the workpiece, there can still be a certain gap between the detection plate 7 and the workpiece, so that when the detection plate 7 abuts against the outside of the workpiece, the sliding ball 11 first contacts the workpiece, and the detection plate 7 deflects on the linkage rod 9 and can be perpendicular to the workpiece.

[0032] One end of the linkage rod 9 is hinged with a hinge rod 13, which is located at the top of the support ring 14 and is hinged to the support ring 14. The bottom end of the linkage rod 9 is hinged with a hinge seat 18, which is fixed on the mounting plate 12. Figure 4 and 5 As shown, the electric push rod 15 drives the support ring 14 to move, and then the hinged rod 13 can drive the linkage rod 9 to deflect along the axis point where the linkage rod 9 is connected to the hinge seat 18, so that when the linkage rod 9 deflects, the detection plate 7 is driven to move and wrap around the outside of the workpiece;

[0033] A first gear 16 is installed on the side of the mounting plate 12 away from the detection plate 7. A second gear 17 is provided on the outside of the first gear 16. The second gear 17 extends to the surface of the limiting cylinder 4. A motor 19 is provided on the outside of the limiting cylinder 4 for driving the second gear 17 to rotate. The second gear 17 is meshed with the first gear 16. Figure 1 、 2As shown in Figures 3, 4 and 5, the second gear 17 is driven to rotate by the motor 19, and the second gear 17 drives the first gear 16 to rotate. When the first gear 16 rotates, it drives the various structures on the mounting plate 12 to rotate along the axial direction of the limiting cylinder 4, so that the detection plate 7 rotates around the workpiece, realizing the function of surround detection of the workpiece.

[0034] Two first electric slide rails 20 are provided on one side of the conveyor belt 5, and each first electric slide rail 20 is provided with a calibration rod 21 that can be adjusted up and down;

[0035] As attached Figure 1 and 2 As shown, with the first electric slide rail 20 as a support point, the position of each calibration rod 21 is adjusted by each first electric slide rail 20, so that the two sliding balls 11 can be respectively located at one end of the conveyor belt 5 and the top of the conveyor belt 5, so that the workpiece can pass between the two calibration rods 21 and the position of the workpiece is detected by the calibration rod 21.

[0036] A second electric slide rail 22 is provided on one side of the limiting cylinder 4. The second electric slide rail 22 is mounted on the base 1 by bolts. A displacement sensor head 23 that can be adjusted up and down is provided on the second electric slide rail 22.

[0037] As attached Figure 1 As shown, the second electric slide rail 22 drives the displacement sensing head 23 to move, and the displacement sensing head 23 detects whether the workpiece is in the same axial direction as the limiting cylinder 4 when it is inserted into the limiting cylinder 4, so as to facilitate the first electric slide rail 20 to drive the calibration rod 21 to move up and down to adjust the position of the workpiece, ensure that the workpiece and the limiting cylinder 4 are in the same axial direction, and ensure the accuracy of workpiece detection.

[0038] The two splints 3 are provided with a docking sleeve 24 at one end away from the limiting cylinder 4, and each docking sleeve 24 is provided with a blocking wheel 25. The two docking sleeves 24 are plugged together, and the blocking wheel 25 is fixed to the outside of the docking sleeve 24.

[0039] As attached Figure 1 、 2 As shown in FIG7 , the two docking sleeves 24 are plugged together, so that when the splint 3 moves toward each other, the two docking sleeves 24 and the blocking wheel 25 can form a cavity to support the workpiece, prevent the workpiece from falling, and ensure the stability of the workpiece during transportation.

[0040] The two slides 2 are slidably connected to the base 1, and the bottom of each slide 2 is threadedly connected to a forward and reverse screw rod 26, which is rotatably connected to the base 1;

[0041] As attached Figure 1 、 2 As shown in FIG7 , by rotating the forward and reverse screw rods 26 , the two slides 2 can be displaced toward each other on the base 1 , so as to adjust the positions of the slides 2 and the clamping plate 3 .

[0042] The specific working principle is as follows: the steel bars are transported to the equipment entrance by the conveyor belt 5, and the industrial camera 6 takes a preliminary picture of the steel bar surface to identify whether there are obvious defects; at the same time, the first electric slide rail 20 drives the calibration rod 21 to move up and down, calibrates the conveying trajectory of the steel bars, and ensures that it moves along the axial direction of the limit cylinder 4. The displacement sensor head 23 is adjusted up and down by the second electric slide rail 22 to detect the coaxiality of the steel bars when inserted into the limit cylinder in real time. If an offset occurs, it can be automatically fed back to the first electric slide rail 20 through the PLC system, and the steel bar position can be fine-tuned through the calibration rod 21 to ensure the accuracy of subsequent detection.

[0043] Rotate the forward and reverse screw rods 26 to drive the two slides 2 to slide towards each other on the base 1, and adjust the spacing between the splints 3 to adapt to the diameter of the steel bars; the docking sleeve 24 at one end of the splint 3 is plugged into the blocking wheel 25 to form a supporting structure to prevent the steel bars from falling.

[0044] After the rebar enters the retaining cylinder 4, the electric push rod 15 pushes the support ring 14 axially, which, through the hinge rod 13, drives the linkage rod 9 to deflect around the hinge seat 18, causing the detection plate 7 to wrap around the outside of the rebar. At this point, the sliding ball 11 on the detection plate 7 first contacts the surface of the rebar. The detection plate 7 can be adjusted at the end of the linkage rod 9, and the elastic return of the springs 10 on both sides ensures that the camera module 8 is perpendicular to the surface of the rebar.

[0045] The motor 19 drives the second gear 17 to rotate, and drives the mounting plate 12 to rotate through the meshing first gear 16, so that the detection plate 7 and the shooting module 8 perform a circular rotation scan around the axial direction of the steel bar, and synchronously collect the image data of the circumference of the steel bar.

[0046] The conveyor belt 5 continuously transports steel bars, and the industrial camera 6 and the shooting module 8 work together: the industrial camera 6 is responsible for the preliminary detection of macro defects on the surface of the steel bars, and the shooting module 8 captures micro defects such as fine cracks and rust through wrap-around close shooting. The data is transmitted to the equipment terminal in real time for analysis.

[0047] During the entire detection process, the electric push rod 15 can automatically adjust the displacement of the support ring 14 according to the diameter of the steel bar. The linkage mechanism of the linkage rod 9 and the spring 10 ensures that the detection plate 7 always fits the steel bar without manual intervention. It can not only adapt to workpieces of different sizes but also detect steel bars with different curvatures. The angle adaptive adjustment function of the detection plate 7 can ensure the detection coverage.

[0048] After the detection is completed, the forward and reverse screw rods 26 rotate in the opposite direction to reset the slide 2, and the detection plate 7 in the limit cylinder 4 is automatically opened under the action of the spring 10, which facilitates the unloading of steel bars and realizes continuous detection operations.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable steel bar flaw detector for building safety inspection, comprising a base (1), characterized in that: A package detection component is provided on the base (1); The package detection assembly comprises two slides (2) arranged on a base (1), and a clamping plate (3) is respectively provided on the top of each slide (2), one end of each of the two clamping plates (3) is slidably connected to a limiting cylinder (4), and a conveyor belt (5) is provided at one end of the limiting cylinder (4) away from the clamping plate (3), and an industrial camera (6) is provided at the bottom of the conveyor belt (5); A plurality of detection plates (7) are distributed in the limiting cylinder (4), and each detection plate (7) is provided with a shooting module (8) for shooting detection. One end of each of the detection plates (7) is hinged with a linkage rod (9), and both sides of each linkage rod (9) are provided with a spring (10), and one end of each of the springs (10) extends to the corresponding detection plate (7).

2. The portable steel bar flaw detector for building safety inspection according to claim 1, characterized in that: A plurality of sliding balls (11) are rotatably connected to the plurality of detection plates (7), a mounting plate (12) is provided in the middle of the limiting cylinder (4), a plurality of electric push rods (15) are provided on the mounting plate (12), and a support ring (14) is provided at the output end of each electric push rod (15).

3. The portable steel bar flaw detector for building safety inspection according to claim 2, characterized in that: One end of the linkage rod (9) is hinged to a hinge rod (13), the hinge rod (13) is located at the top of the support ring (14) and is hinged to the support ring (14), the bottom end of the linkage rod (9) is hinged to a hinge seat (18), and the hinge seat (18) is fixed on the mounting plate (12).

4. The portable steel bar flaw detector for building safety inspection according to claim 2, characterized in that: A first gear (16) is installed on the side of the mounting plate (12) away from the detection plate (7), a second gear (17) is provided on the outer side of the first gear (16), the second gear (17) extends to the surface of the limiting cylinder (4), a motor (19) for driving the second gear (17) to rotate is provided on the outer side of the limiting cylinder (4), and the second gear (17) is meshed with the first gear (16).

5. The portable steel bar flaw detector for building safety inspection according to claim 1, characterized in that: Two first electric slide rails (20) are provided on one side of the conveyor belt (5), and each of the first electric slide rails (20) is provided with a calibration rod (21) that can be adjusted up and down.

6. The portable steel bar flaw detector for building safety inspection according to claim 1, characterized in that: A second electric slide rail (22) is provided on one side of the limiting cylinder (4), the second electric slide rail (22) is mounted on the base (1) via bolts, and a displacement sensing head (23) that is adjustable up and down is provided on the second electric slide rail (22).

7. The portable steel bar flaw detector for building safety inspection according to claim 1, characterized in that: A docking sleeve (24) is provided at one end of the two clamping plates (3) away from the limiting cylinder (4), and a blocking wheel (25) is sleeved on each of the docking sleeves (24). The two docking sleeves (24) are plugged together, and the blocking wheel (25) is fixed on the outside of the docking sleeve (24).

8. The portable steel bar flaw detector for building safety inspection according to claim 1, characterized in that: The two slides (2) are both slidably connected to the base (1), and the bottom of each slide (2) is threadedly connected to a forward and reverse screw rod (26), and the forward and reverse screw rod (26) is rotatably connected to the base (1).

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