Detection device for detecting cracks in steel framed concrete floors

Abstract

The utility model belongs to crack detection technical field especially relates to the detection device for detecting steel frame concrete floor crack, include: support plate and detection component, be equipped with the auxiliary alignment part for aiming at the crack on the support plate, realize the positioning of crack through the auxiliary alignment part on support plate, avoid the detection error caused because of alignment deviation, the auxiliary alignment part of support plate can position crack under the inconvenient scene such as narrow, line of sight is blocked, the rotary connection of handheld part and support plate makes the operator can adjust the holding posture flexibly in the cramped space part, the operation comfort under complex scene is promoted, through the sliding guide component and positioning component that set up, pull elastic telescopic link can be unlocked carousel, can rotate carousel manually, realize the stable adjustment of emission end and receiving end through sliding guide component, adapt the crack position of inconvenient part, guarantee detection data accurate.

Description

Technical Field

[0001] This utility model belongs to the field of crack detection technology, and in particular relates to a detection device for detecting cracks in steel frame concrete floor slabs. Background Technology

[0002] Steel-framed concrete floor slabs, combining the high strength of steel structures with the stability of concrete structures, are widely used in industrial plants, high-rise buildings, and other engineering fields. During construction, the floor slabs are prone to cracking due to factors such as curing processes and uneven load distribution. If cracks continue to expand and are not detected and treated in time, they may lead to safety hazards such as reduced structural load-bearing capacity and leakage. Therefore, accurate detection of cracks in steel-framed concrete floor slabs is a key link in ensuring the safety of engineering structures.

[0003] In existing technologies, detection devices often rely on operators to directly aim at the crack with their naked eyes and then adjust the detection position. The existing adjustment methods mostly use a sliding track to directly push the crack. When adjusting manually, jamming is likely to occur, making it difficult to achieve smooth fine-tuning. This results in the transmitter and receiver not being able to accurately align with the center of the crack, causing the detection signal to deviate and producing a large detection error. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a detection device for detecting cracks in steel frame concrete floor slabs.

[0005] A detection device for detecting cracks in steel-framed concrete floor slabs includes: a support plate and a detection assembly; The support plate is provided with an auxiliary alignment component for aligning the crack. A handheld part is rotatably connected to one side of the support plate. A detection component is disposed on the handheld part. The detection component includes a detection structure, a transmitter, and a receiver. The support plate has a rotatable turntable on one side, and the turntable has mounting components for mounting the transmitter and receiver. The transmitter and receiver are respectively detachably mounted to corresponding positions on the turntable through the mounting components. A sliding guide assembly and a positioning assembly are provided between the support plate and the turntable. The sliding guide assembly is located on one side of the turntable. The positioning assembly includes a slot structure provided on the support plate and an elastic telescopic rod provided on the sliding guide assembly. The movable end of the elastic telescopic rod is provided with a snap-fit ​​block adapted to the slot structure.

[0006] Furthermore, the sliding guide assembly includes a slide groove on one side of the support plate and a first connecting rod on one side of the turntable. One end of the first connecting rod extends into the slide groove and is provided with a mounting bracket. A roller is rotatably mounted on the mounting bracket. Roller grooves are provided on both inner walls of the slide groove, and the roller is slidably embedded in the roller groove.

[0007] Furthermore, the slot structure includes a limiting block fixed to the side of the support plate facing the turntable, and the limiting block is provided with a plurality of locking slots at intervals along the extension direction of the slide groove, and the locking block is engaged and adapted with the locking slots.

[0008] Furthermore, the snap-fit ​​block includes a connecting plate fixed to the movable end of the elastic telescopic rod, and the connecting plate has a snap-fit ​​part on the side facing the limiting block, the snap-fit ​​part being adapted to the shape of the snap-fit ​​groove.

[0009] Furthermore, the chute, roller groove, and limiting block are all arc-shaped.

[0010] Furthermore, the elastic telescopic rod includes a guide rod fixedly mounted on one side of the mounting frame, a guide groove is provided in the guide rod, a spring is provided in the guide groove, one end of the spring is connected to a second connecting rod slidably mounted in the guide groove, and the snap-fit ​​block is provided at the end of the second connecting rod that extends out of the guide groove.

[0011] Furthermore, the auxiliary alignment component includes an opening on the support plate, the inner wall of the opening having a rotating groove, a circular block being rotatably mounted in the rotating groove, the inner wall of the circular block being connected to an auxiliary line for aligning the crack, and the circular block being positioned and mounted in the rotating groove by friction.

[0012] Furthermore, an auxiliary rod is fixed on the turntable, and the auxiliary rod is arranged in a cross shape with the auxiliary line.

[0013] Furthermore, the mounting component includes mounting plates disposed on both sides of the turntable, and a mounting groove is provided on one side of the mounting plate, wherein the transmitting end and the receiving end are respectively fitted into the corresponding mounting groove; One side of the mounting plate is rotatably connected to a mounting ring via a hinge. The end of the mounting ring away from the hinge is fixedly connected to the mounting plate via a magnetic structure to press the transmitter or receiver.

[0014] Furthermore, the magnetic attraction structure includes a first magnetic block fixed to the end of the mounting ring, and a second magnetic block fixed on the mounting plate at a position corresponding to the first magnetic block, wherein the first magnetic block and the second magnetic block are attracted to each other by opposite poles.

[0015] Compared with existing technologies, the detection device of this utility model for detecting cracks in steel frame concrete floor slabs has the following advantages: The auxiliary alignment components on the support plate enable crack location, avoiding detection errors caused by alignment deviations. These components can locate cracks in confined spaces or with obstructed views, providing a reference for manual adjustment of the turntable and preventing alignment deviations due to environmental limitations. The rotating connection between the handheld part and the support plate allows operators to flexibly adjust their grip in confined spaces, improving operational comfort in complex scenarios. The detachable design of the transmitter and receiver facilitates quick replacement of faulty components or adaptation to different detection requirements in inconvenient locations such as high altitudes or corners. The turntable can be unlocked by pulling the elastic telescopic rod using the sliding guide and positioning components. Operators can manually rotate the turntable and smoothly adjust the transmitter and receiver using the sliding guide components to adapt to crack locations in inconvenient areas, ensuring accurate detection data. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the support plate and turntable of this utility model; Figure 3 This is a schematic diagram of the turntable of this utility model; Figure 4 This is a schematic cross-sectional view of the guide rod of this utility model; The markings in the diagram are as follows: 1. Support plate; 2. Handheld part; 3. Detection component; 4. Transmitter; 5. Receiver; 6. Turntable; 7. Slide groove; 8. First connecting rod; 9. Mounting bracket; 10. Roller; 11. Roller groove; 12. Limiting block; 13. Snap-fit ​​groove; 14. Connecting plate; 15. Snap-fit ​​block; 15a. Snap-fit ​​part; 16. Guide rod; 17. Guide groove; 18. Spring; 19. Second connecting rod; 20. Opening; 21. Rotation groove; 22. Auxiliary line; 23. Auxiliary rod; 24. Mounting plate; 25. Mounting groove; 26. Mounting ring; 27. First magnetic block; 28. Second magnetic block; 29. ​​Circular block. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0018] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0021] Reference Figures 1-4 A detection device for detecting cracks in steel frame concrete floor slabs includes: a support plate 1 and a detection component 3; The support plate 1 is provided with an auxiliary alignment component for aligning the crack. A handheld part 2 is rotatably connected to one side of the support plate 1. A detection component 3 is configured on the handheld part 2. The detection component 3 includes a detection structure, a transmitter 4 and a receiver 5. The support plate 1 has a rotatable turntable 6 on one side. The turntable 6 is provided with mounting components for mounting the transmitter 4 and receiver 5. The transmitter 4 and receiver 5 are respectively detachably mounted to corresponding positions on the turntable 6 through the mounting components. A sliding guide assembly and a positioning assembly are provided between the support plate 1 and the turntable 6. The sliding guide assembly is located on one side of the turntable 6. The positioning assembly includes a slot structure provided on the support plate 1 and an elastic telescopic rod provided on the sliding guide assembly. The movable end of the elastic telescopic rod is provided with a snap-fit ​​part 15 adapted to the slot structure.

[0022] The detection component 3 is specifically an ultrasonic detection device, with its transmitting end 4 being an ultrasonic transmitting end 4 and its receiving end 5 being an ultrasonic receiving end 5.

[0023] In use, this device locates cracks using auxiliary alignment components on the support plate 1, avoiding detection errors caused by alignment deviations. These components allow for crack location in confined spaces or with obstructed views, providing a reference for manually adjusting the turntable 6 and preventing alignment deviations due to environmental limitations. The rotating connection between the handheld part 2 and the support plate 1 allows operators to flexibly adjust their grip in confined spaces, improving operational comfort in complex environments. The detachable design of the transmitter 4 and receiver 5 facilitates quick replacement of faulty components or adaptation to different detection requirements in inconvenient locations such as high altitudes or corners. By pulling the elastic telescopic rod using the sliding guide and positioning components, the turntable 6 can be unlocked, allowing operators to manually rotate it. The sliding guide components facilitate smooth adjustment of the transmitter 4 and receiver 5, adapting to crack locations in difficult areas and ensuring accurate detection data.

[0024] In the example of this application, the sliding guide assembly includes a slide groove 7 on one side of the support plate 1 and a first connecting rod 8 on one side of the turntable 6. One end of the first connecting rod 8 extends into the slide groove 7 and is provided with a mounting bracket 9. A roller 10 is rotatably mounted on the mounting bracket 9. Roller grooves 11 are provided on both inner walls of the slide groove 7, and the roller 10 is slidably embedded in the roller grooves 11.

[0025] As a preferred example of this utility model, the sliding guide assembly optimizes the manual adjustment experience of the turntable 6 in areas where it is inconvenient to inspect. The groove 7 of the support plate 1 cooperates with the first connecting rod 8 of the turntable 6 to provide a guide path for manually rotating the turntable 6. The roller 10 of the mounting bracket 9 is embedded in the roller groove 11, which converts sliding friction into rolling friction and reduces the resistance of manual adjustment. In confined spaces, the operator's hand range of motion is limited. The labor-saving rolling guide can avoid positional deviation caused by excessive force. The bidirectional limiting structure of the roller 10 and the roller groove 11 can prevent the mounting bracket 9 from deviating from the trajectory when manually adjusting the turntable 6, ensuring that the transmitter 4 and receiver 5 can be aligned with the crack in areas where it is inconvenient to apply force.

[0026] In the example of this application, the slot structure includes a limiting block 12 fixed to the side of the support plate 1 facing the turntable 6. The limiting block 12 is provided with a plurality of locking slots 13 at intervals along the extension direction of the slide groove 7. The locking part 15 is locked and adapted to the locking slots 13.

[0027] As a preferred example of this utility model, the multi-position locking grooves 13 spaced apart along the upper edge of the limiting block 12 slide groove 7 allow the operator to select the positioning position according to the distribution of cracks in inconvenient areas when manually rotating the turntable 6, without repeated fine adjustments. The matching locking part 15a and the locking groove 13 prevent the position from loosening due to holding the turntable 6 for a long time. The positions of the locking groove 13 can help the operator judge whether the positioning is in place by touch, improving the efficiency and accuracy of manual adjustment.

[0028] In the example of this application, the snap-fit ​​part 15 includes a connecting plate 14 fixed to the movable end of the elastic telescopic rod. The connecting plate 14 is provided with a snap-fit ​​part 15a on the side facing the limiting block 12. The snap-fit ​​part 15a is adapted to the shape of the snap-fit ​​groove 13.

[0029] As a preferred example of this utility model, the connecting plate 14 at the movable end of the elastic telescopic rod increases the contact area with the limiting block 12, making the force more even when snapped together. The snapping part 15a on the connecting plate 14 is adapted to the shape of the snapping groove 13, ensuring the tightness of the snapping and preventing the position from shifting due to vibration of the detection environment or slight hand contact after manually rotating the turntable 6 and positioning it, thus affecting the detection effect.

[0030] In the example of this application, the slide 7, roller groove 11 and limiting block 12 are all arc-shaped.

[0031] As a preferred example of this utility model, the arc-shaped structure makes manual rotation of the turntable 6 more stable. Combined with the rolling guide of the roller 10, even in inconvenient areas, the angle can be adjusted by hand touch control to ensure comprehensive detection.

[0032] In the example of this application, the elastic telescopic rod includes a guide rod 16 fixedly disposed on one side of the mounting bracket 9. A guide groove 17 is provided in the guide rod 16. A spring 18 is provided in the guide groove 17. One end of the spring 18 is connected to a second connecting rod 19 slidably disposed in the guide groove 17. The snap-fit ​​part 15 is provided at one end of the second connecting rod 19 that extends out of the guide groove 17.

[0033] As a preferred example of this utility model, the guide groove 17 of the guide rod 16 provides a stable sliding path for the second connecting rod 19, preventing the telescopic rod from shifting when manually pulling to unlock. The elastic preload of the spring 18 allows the locking part 15a to automatically and tightly engage with the locking groove 13. After the operator manually rotates the turntable 6 to the target position, no additional force is required to fix it. When unlocking, only the second connecting rod 19 needs to be pulled to stretch the spring 18. The operation can be completed with one hand, reducing the difficulty of adjusting the turntable 6.

[0034] In the example of this application, the auxiliary alignment component includes an opening 20 formed on the support plate 1, the inner wall of the opening 20 is provided with a rotating groove 21, a ring block 29 is rotatably assembled in the rotating groove 21, the inner wall of the ring block 29 is connected with an auxiliary line 22 for aligning the crack, and the ring block 29 is positioned and assembled in the rotating groove 21 by friction.

[0035] As a preferred example of this utility model, the opening 20 of the support plate 1 facilitates the operator's observation of the crack, the auxiliary line 22 on the inner wall of the ring block 29 can be quickly aligned with the crack, and the ring block 29 can be manually rotated in the rotating groove 21 so that the auxiliary line 22 can be adapted to cracks with different directions. The friction positioning design does not require additional fixing tools. The operator can maintain the position after manually adjusting the ring block 29, which is suitable for inconvenient detection scenarios where there are no tools to operate.

[0036] In the example of this application, an auxiliary rod 23 is fixed on the turntable 6, and the auxiliary rod 23 is arranged in a cross shape with the auxiliary line 22.

[0037] As a preferred example of this utility model, the positioning coordinate system formed by the cross structure can quickly lock the center of the crack through the intersection point, avoiding alignment deviation. The auxiliary rod 23 is fixedly connected to the turntable 6. When the turntable 6 is manually rotated, the auxiliary rod 23 rotates synchronously. The operator can intuitively judge the adjustment angle of the transmitter 4 and receiver 5 through the position of the auxiliary rod 23, ensuring that the crack can be fully detected.

[0038] In the example of this application, the mounting component includes mounting plates 24 disposed on both sides of the turntable 6, and a mounting groove 25 is provided on one side of the mounting plate 24, and the transmitting end 4 and the receiving end 5 are respectively fitted into the corresponding mounting groove 25; One side of the mounting plate 24 is rotatably connected to a mounting ring 26 via a hinge. The end of the mounting ring 26 away from the hinge is fixedly connected to the mounting plate 24 via a magnetic attraction structure to press the transmitter 4 or receiver 5.

[0039] As a preferred example of this utility model, the mounting slot 25 of the mounting plate 24 allows for quick mounting of the transmitter 4 and receiver 5. The mounting ring 26 is fixed by a hinge rotation and magnetic attraction. Operators do not need to carry tools; they can simply rotate the mounting ring 26 and use the magnetic attraction to fix or remove the device. The double fixing structure ensures that the transmitter 4 and receiver 5 will not loosen due to vibration or collision during manual adjustment of the turntable 6. At the same time, the convenient mounting and dismounting method facilitates the replacement of different specifications of detection elements on-site at the detection location, improving the adaptability of the device.

[0040] The mounting block is integrally molded from engineering plastics (such as polyoxymethylene (POM) and has both moderate elasticity and structural strength, and can be processed into mounting blocks with snap-fit ​​structures.

[0041] In the example of this application, the magnetic attraction structure includes a first magnetic block 27 fixed to the end of the mounting ring 26, and a second magnetic block 28 fixed on the mounting plate 24 at a position corresponding to the first magnetic block 27. The first magnetic block 27 and the second magnetic block 28 are attracted to each other by opposite polarities.

[0042] As a preferred example of this utility model, the first magnetic block 27 of the mounting ring 26 and the second magnetic block 28 of the mounting plate 24 are attracted by opposite poles, which can achieve quick fixing and unlocking without the need for screws or other fastening tools; the operator only needs to push the mounting ring 26 to attract and fix it, and pull it to unlock it, reducing the difficulty of operation; the stable magnetic attraction ensures that the mounting ring 26 tightly presses the detection component, avoiding the component from loosening when manually adjusting the turntable 6 or moving the device.

[0043] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A detection device for detecting cracks in steel-framed concrete floor slabs, characterized in that, include: Support plate (1) and detection component (3); The support plate (1) is provided with an auxiliary alignment component for aligning the crack. A handheld part (2) is rotatably connected to one side of the support plate (1). A detection component (3) is arranged on the handheld part (2). The detection component (3) includes a detection structure, a transmitter (4) and a receiver (5). The support plate (1) has a rotatable turntable (6) on one side. The turntable (6) is provided with mounting components for mounting the transmitter (4) and receiver (5). The transmitter (4) and receiver (5) are respectively detachably mounted on the corresponding positions of the turntable (6) through the mounting components. A sliding guide assembly and a positioning assembly are provided between the support plate (1) and the turntable (6). The sliding guide assembly is located on one side of the turntable (6). The positioning assembly includes a slot structure provided on the support plate (1) and an elastic telescopic rod provided on the sliding guide assembly. The movable end of the elastic telescopic rod is provided with a snap-fit ​​block (15) adapted to the slot structure.

2. The detection device for detecting cracks in steel-framed concrete floor slabs according to claim 1, characterized in that, The sliding guide assembly includes a slide groove (7) on one side of the support plate (1) and a first connecting rod (8) on one side of the turntable (6). One end of the first connecting rod (8) extends into the slide groove (7) and is provided with a mounting bracket (9). A roller (10) is rotatably mounted on the mounting bracket (9). Roller grooves (11) are provided on both sides of the inner wall of the slide groove (7). The roller (10) is slidably embedded in the roller groove (11).

3. The detection device for detecting cracks in steel-framed concrete floor slabs according to claim 1, characterized in that, The slot structure includes a limiting block (12) fixed on the side of the support plate (1) facing the turntable (6). The limiting block (12) is provided with a plurality of locking slots (13) at intervals along the extension direction of the slide groove (7). The locking block (15) is engaged and adapted to the locking slots (13).

4. The detection device for detecting cracks in steel-framed concrete floor slabs according to claim 3, characterized in that, The snap-fit ​​block (15) includes a connecting plate (14) fixed to the movable end of the elastic telescopic rod. The connecting plate (14) has a snap-fit ​​part (15a) on the side facing the limiting block (12). The snap-fit ​​part (15a) is adapted to the shape of the snap-fit ​​groove (13).

5. The detection device for detecting cracks in steel-framed concrete floor slabs according to claim 2, characterized in that, The slide groove (7), roller groove (11) and limiting block (12) are all arc-shaped.

6. The detection device for detecting cracks in steel-framed concrete floor slabs according to claim 1, characterized in that, The elastic telescopic rod includes a guide rod (16) fixedly installed on one side of the mounting frame (9). A guide groove (17) is provided in the guide rod (16). A spring (18) is provided in the guide groove (17). One end of the spring (18) is connected to a second connecting rod (19) that is slidably installed in the guide groove (17). The snap-fit ​​block (15) is located at one end of the second connecting rod (19) that extends out of the guide groove (17).

7. The detection device for detecting cracks in steel-framed concrete floor slabs according to claim 1, characterized in that, The auxiliary alignment component includes an opening (20) on a support plate (1), and a rotating groove (21) is provided on the inner wall of the opening (20). A ring block (29) is rotatably assembled in the rotating groove (21). An auxiliary line (22) for aligning the crack is connected to the inner wall of the ring block (29). The ring block (29) is positioned and assembled in the rotating groove (21) by friction.

8. The detection device for detecting cracks in steel-framed concrete floor slabs according to claim 7, characterized in that, An auxiliary rod (23) is fixed on the turntable (6), and the auxiliary rod (23) and the auxiliary line (22) are arranged in a cross shape.

9. The detection device for detecting cracks in steel-framed concrete floor slabs according to claim 1, characterized in that, The mounting components include mounting plates (24) disposed on both sides of the turntable (6), and a mounting groove (25) is provided on one side of the mounting plate (24). The transmitting end (4) and the receiving end (5) are respectively fitted into the corresponding mounting groove (25). One side of the mounting plate (24) is rotatably connected to a mounting ring (26) via a hinge. The end of the mounting ring (26) away from the hinge is fixedly connected to the mounting plate (24) via a magnetic attraction structure to press the transmitter (4) or receiver (5).

10. The detection device for detecting cracks in steel-framed concrete floor slabs according to claim 9, characterized in that, The magnetic attraction structure includes a first magnetic block (27) fixed at the end of the mounting ring (26), and a second magnetic block (28) fixed on the mounting plate (24) at the position corresponding to the first magnetic block (27). The first magnetic block (27) and the second magnetic block (28) are attracted to each other by opposite polarities.

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