Anti-deviation clamping structure for detecting thickness of reinforced concrete cover

Abstract

The utility model discloses a kind of anti-deviation clamping structures of reinforcing bar protective layer thickness detection, it is related to reinforcing concrete protective layer detection technical field, including two cylinders, two ends of two cylinder are equipped with compacting mechanism;Two rotating sleeves are slidably sleeved on two cylinder, and the side portion of two rotating sleeves is fixedly installed with connecting column and is close to each other.This application's reinforcing bar protective layer thickness detection anti-deviation clamping structure, when continuously detecting along beam direction, with two fixed connecting plates as rotating point, adjusting the position of other two connecting plates and driving overall detection component adjustment detection range, without removing the fixation of four connecting plates, wall detection position can be changed.This design not only saves the tedious operation of repeatedly disassembling and assembling clamping component, but also always takes fixed connecting plate as reference, effectively avoids position deviation during detection process, ensures reinforcing bar protective layer thickness detection data accurate and reliable.

Description

Technical Field

[0001] This utility model relates to the field of reinforced concrete protective layer detection technology, and in particular to an anti-deviation clamping structure for detecting the thickness of reinforced concrete protective layer. Background Technology

[0002] The concrete cover refers to the thickness of the concrete calculated from the outermost layer of reinforcing bars (structural bars, distribution bars, etc.) in a concrete structural member, and is simply called the cover.

[0003] Current clamping structures used for detecting the thickness of the concrete cover of beam reinforcement have significant drawbacks during continuous testing: if the testing position needs to be adjusted, it is often necessary to first release all clamping components from the beam, realign them, and then tighten them one by one. This is not only cumbersome and time-consuming, but also prone to causing the testing benchmark to shift due to alignment deviations during re-fixing, affecting the consistency and accuracy of the testing data. To address this issue, we propose an anti-deviation clamping structure for detecting the thickness of the concrete cover of reinforcement. Utility Model Content

[0004] The purpose of this application is to provide an anti-offset clamping structure for detecting the thickness of the concrete cover of reinforcing bars, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: an anti-offset clamping structure for detecting the thickness of the concrete cover of reinforcing bars, comprising two cylinders, both ends of which are equipped with clamping mechanisms; Both cylinders are slidably fitted with rotating sleeves, and connecting columns are fixedly installed on the sides of the two rotating sleeves that are close to each other. A limiting mechanism is installed on the side of the connecting column. Two first sliding grooves are opened on the side of both cylinders. The two first sliding grooves on the same cylinder are distributed at an angle of 180 degrees with the central axis of the cylinder as the center of symmetry. The limiting mechanism is installed in cooperation with the two first sliding grooves that are close to each other. A U-shaped plate is slidably installed on the connecting column. A placement box is installed on the side of the U-shaped plate through a rotating mechanism. A detection hole is opened at the bottom of the placement box. Two threaded fixing holes are opened on the inner wall of the placement box, and fixing bolts are threaded into both threaded fixing holes.

[0006] Preferably, the clamping mechanism includes a connecting plate fixedly installed at the end of the cylinder. A threaded clamping hole is provided on the side of the connecting plate. A threaded post is threadedly installed in the threaded clamping hole. A pressure plate is rotatably installed at one end of the threaded post. A knob is fixedly installed at the other end of the threaded post. A guide rod is fixedly installed on the side of the pressure plate. A guide hole is provided on the side of the connecting plate. The guide rod is slidably installed in the guide hole.

[0007] Preferably, the limiting mechanism includes a rotating column rotatably mounted on the side of the connecting column, a rotating plate fixedly mounted on the end of the rotating column away from the connecting column, two extruded cylinders fixedly mounted on the side of the rotating plate, rectangular holes being opened on the inner walls of the two rotating sleeves, and rectangular columns being slidably mounted in the two rectangular holes, with the ends of the two rectangular columns extending away from each other into the two first sliding grooves that are close to each other, the top and bottom of the rectangular columns contacting the inner top wall and inner bottom wall of the first sliding grooves, respectively, a fixing ring fixedly mounted on the side of the connecting column, and one end of a torsion spring fixedly mounted on the outer side of the rotating column, the other end of the torsion spring being fixedly mounted on the inner ring of the fixing ring.

[0008] Preferably, the rotating mechanism includes a rotating hole opened on the side of the U-shaped plate, a rotating shaft rotatably installed in the rotating hole, a mounting plate fixedly installed at one end of the rotating shaft, the side of the mounting plate being connected to the side of the placement box, and a limiting plate fixedly installed at the other end of the rotating shaft.

[0009] Preferably, the two sides of the limiting plate are in contact with the sides of the connecting column and the U-shaped plate respectively. A threaded limiting hole is provided on the inner wall of the rotating hole. A limiting bolt is installed in the threaded limiting hole. Two limiting grooves are provided on the side of the rotating shaft. The pressing end of the limiting bolt extends into one of the limiting grooves.

[0010] Preferably, the top and bottom of the connecting column are provided with second sliding grooves, and sliders are slidably installed in the two second sliding grooves. The sides of the two sliders that are far apart from each other are respectively fixedly installed on the inner top wall and inner bottom wall of the U-shaped plate.

[0011] Preferably, the top and bottom of the U-shaped plate are provided with threaded mounting holes, and mounting bolts are threaded into both of the threaded mounting holes.

[0012] Preferably, each of the two rotating sleeves has two threaded positioning holes on its inner wall, and a positioning bolt is installed in each of the two threaded positioning holes.

[0013] In summary, the technical effects and advantages of this utility model are as follows: The anti-offset clamping structure for measuring the thickness of the reinforcing steel cover in this application, during continuous measurement along the beam direction, uses two fixed connecting plates as rotation points. Adjusting the position of the other two connecting plates drives the entire measuring component to adjust the measurement range, changing the wall measurement position without needing to remove the four connecting plates. This design eliminates the tedious operation of repeatedly disassembling and assembling the clamping components, and because it always uses the fixed connecting plates as a reference, it effectively avoids positional offset during the measurement process, ensuring accurate and reliable data for measuring the thickness of the reinforcing steel cover. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A first-view perspective perspective view of the connection between an anti-offset clamping structure for detecting the thickness of rebar cover and a rebar cover thickness detector. Figure 2 A second-view perspective perspective view of the connection between an anti-offset clamping structure for detecting the thickness of rebar cover and a rebar cover thickness detector. Figure 3 for Figure 2 Enlarged view of the middle section structure; Figure 4 for Figure 1 Enlarged view of point A in the middle; Figure 5 A third-view perspective view of the connection between an anti-offset clamping structure for detecting the thickness of rebar cover and a rebar cover thickness detector. Figure 6 A cross-sectional view of the connection between the U-shaped plate, the rotating shaft, and the limit bolts.

[0016] In the diagram: 1. Connecting plate; 2. First slide groove; 3. Cylinder; 4. Rotating sleeve; 5. Positioning bolt; 6. Rectangular hole; 7. Rectangular column; 8. Connecting column; 9. Guide rod; 10. Threaded column; 11. Knob; 12. Pressure plate; 13. U-shaped plate; 14. Mounting bolt; 15. Slider; 16. Second slide groove; 17. Limiting plate; 18. Limiting bolt; 19. Placement box; 20. Fixing bolt; 21. Mounting plate; 22. Moving frame; 23. Extrusion cylinder; 24. Rotating plate; 25. Torsion spring; 26. Rotating column; 27. Fixing ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 - Figure 6 The embodiments provided by this utility model are as follows: A non-offset clamping structure for detecting the thickness of the concrete cover of reinforcing bars includes two cylinders 3, and a clamping mechanism is installed at both ends of the two cylinders 3. Two rotating sleeves 4 are slidably sleeved on each of the two cylinders 3. A connecting column 8 is fixedly installed on the side of the two rotating sleeves 4 that are close to each other. A limiting mechanism is installed on the side of the connecting column 8. Two first sliding grooves 2 are opened on the side of the two cylinders 3. The two first sliding grooves 2 on the same cylinder 3 are distributed at an angle of 180 degrees with the central axis of the cylinder 3 as the center of symmetry. The limiting mechanism is installed in cooperation with the two first sliding grooves 2 that are close to each other. A U-shaped plate 13 is slidably installed on the connecting column 8. A placement box 19 is installed on the side of the U-shaped plate 13 through a rotating mechanism. A detection hole is opened at the bottom of the placement box 19. Two threaded fixing holes are opened on the inner wall of the placement box 19. Fixing bolts 20 are threadedly installed in both threaded fixing holes.

[0019] like Figure 1 and Figure 2 As shown, the clamping mechanism includes a connecting plate 1 fixedly installed at the end of the cylinder 3. A threaded clamping hole is provided on the side of the connecting plate 1, and a threaded post 10 is threadedly installed inside the threaded clamping hole. A pressure plate 12 is rotatably installed at one end of the threaded post 10, and a knob 11 is fixedly installed at the other end of the threaded post 10. A guide rod 9 is fixedly installed on the side of the pressure plate 12, and a guide hole is provided on the side of the connecting plate 1, with the guide rod 9 slidably installed within the guide hole. In use, the rebar cover thickness detector is placed in the placement box 19 with the roller side facing up, so that the rollers can protrude from the detection hole. It is then fixed with fixing bolts 20. Next, the four connecting plates 1 are aligned with the beam to be tested. With the rollers of the rebar cover thickness detector in contact with the wall, rotating the knob 11 causes the threaded post 10 to move spirally. The spiral movement of the threaded post 10 drives the pressure plate 12 to move, thereby clamping the beam. Repeating this process by rotating the other knob 11 can fix the two cylinders 3 to the beam.

[0020] like Figure 1 and Figure 4As shown, the limiting mechanism includes a rotating column 26 rotatably mounted on the side of the connecting column 8. A rotating plate 24 is fixedly mounted on the end of the rotating column 26 away from the connecting column 8. Two extruded cylinders 23 are fixedly mounted on the side of the rotating plate 24. Rectangular holes 6 are opened on the inner walls of the two rotating sleeves 4. Rectangular columns 7 are slidably mounted in the two rectangular holes 6. The ends of the two rectangular columns 7 that are far apart from each other extend into the two first sliding grooves 2 that are close to each other. The top and bottom of the rectangular columns 7 are in contact with the inner top wall and inner bottom wall of the first sliding groove 2, respectively. A fixing ring 27 is fixedly mounted on the side of the connecting column 8. One end of a torsion spring 25 is fixedly mounted on the outer side of the rotating column 26. The other end of the torsion spring 25 is fixedly mounted on the inner ring of the fixing ring 27. Rotating the rotating plate 24 will drive the rotating column 26 to rotate. The rotation of the rotating column 26 will cause the torsion spring 25 to tighten. At the same time, the rotation of the rotating plate 24 will drive the two extrusion cylinders 23 to rotate. The two extrusion cylinders 23 will press the inner walls of the two moving frames 22, causing the two moving frames 22 and the two rectangular columns 7 to move closer to each other, thereby causing the two rectangular columns 7 to move out of the two first slide grooves 2 respectively.

[0021] like Figure 3 and Figure 5 As shown, the rotating mechanism includes a rotating hole on the side of the U-shaped plate 13, in which a rotating shaft is rotatably mounted. One end of the rotating shaft is fixedly mounted with a mounting plate 21, the side of which is connected to the side of the placement box 19. The other end of the rotating shaft is fixedly mounted with a limiting plate 17. The limiting bolt 18 is rotated to move it out of the limiting groove, and then the placement box 19 is rotated 180 degrees to adjust the direction of the detection end of the rebar cover thickness detector. When the limiting bolt 18 corresponds to another limiting groove, the limiting bolt 18 is rotated in the opposite direction to enter the other limiting groove.

[0022] like Figure 3 and Figure 5 As shown, the two sides of the limiting plate 17 are in contact with the sides of the connecting column 8 and the U-shaped plate 13, respectively. A threaded limiting hole is provided on the inner wall of the rotating hole, and a limiting bolt 18 is installed in the threaded limiting hole. Two limiting grooves are provided on the side of the rotating shaft, and the pressing end of the limiting bolt 18 extends into one of the limiting grooves. The two limiting grooves are distributed at a 180-degree angle with the central axis of the rotating shaft as the center of symmetry. The limiting bolt 18 moves into the limiting groove, thereby completing the fixation of the rotating shaft.

[0023] like Figure 3 As shown, the top and bottom of the connecting column 8 are provided with second sliding grooves 16, and sliders 15 are slidably installed in both second sliding grooves 16. The sides of the two sliders 15 that are far apart from each other are fixedly installed on the inner top wall and inner bottom wall of the U-shaped plate 13, respectively. By setting up the sliders 15 and the second sliding grooves 16, the U-shaped plate 13 can only slide along the direction of the connecting column 8.

[0024] like Figure 3 As shown, threaded mounting holes are provided at both the top and bottom of the U-shaped plate 13, and mounting bolts 14 are threaded into both holes. By loosening the mounting bolts 14, the U-shaped plate 13 can slide along the direction of the connecting column 8, thereby allowing the rebar cover thickness detector to slide along the direction of the connecting column 8 and perform back-and-forth checks.

[0025] like Figure 1 As shown, each of the two rotating sleeves 4 has two threaded positioning holes on its inner wall, and a positioning bolt 5 is threaded into each of the two positioning holes. By loosening the two positioning bolts 5, the rotating sleeve 4 can slide along the direction of the cylinder 3, thereby allowing the rebar cover thickness detector to slide along the direction of the cylinder 3.

[0026] Working principle: When using the rebar cover thickness detector, place it into the box 19 with the roller side facing up, so that the roller can protrude from the detection hole. The rebar cover thickness detector is existing technology and will not be described in detail here. You can refer to the rebar cover thickness detector in the prior art document CN221198390U. Then fix it with fixing bolts 20. Then align the four connecting plates 1 with the beam to be tested. When the roller of the rebar cover thickness detector contacts the wall, turn the knob 11 to make the threaded column 10 move spirally. The spiral movement of the threaded column 10 drives the pressure plate 12 to move, thereby making the pressure plate 12 clamp the beam. Repeat the turning of the other knob 11 to fix the two cylinders 3 to the beam. By loosening the two positioning bolts 5, the rotating sleeve 4 can slide along the direction of the cylinder 3, thereby allowing the rebar cover thickness detector to slide along the direction of the cylinder 3. By loosening the mounting bolts 14, the U-shaped plate 13 can slide along the direction of the connecting column 8, thereby allowing the rebar cover thickness detector to slide along the direction of the connecting column 8, thus enabling back-and-forth detection. When it is necessary to continue the inspection along the direction of the crossbeam, the two connecting plates 1 that are away from the direction of the inspection can be released. Simply turn the knob 11 in the opposite direction to drive the pressure plate 12 to move in the opposite direction, so that the two connecting plates 1 are no longer fixed to the crossbeam. Then, turn the rotating plate 24 to drive the rotating column 26 to rotate. The rotation of the rotating column 26 causes the torsion spring 25 to tighten. At the same time, the rotation of the rotating plate 24 drives the two extrusion cylinders 23 to rotate. The two extrusion cylinders 23 press the inner walls of the two moving frames 22, causing the two moving frames 22 and the two rectangular columns 7 to move closer to each other, thereby causing the two rectangular columns 7 to move out of the two first slide grooves 2 respectively. At this point, the two connecting plates 1 that have lost their fixation can be rotated. When the two connecting plates 1 are perpendicular to the crossbeam, the limiting bolt 18 is rotated to move it out of the limiting groove. Then, the placement box 19 is rotated 180 degrees to adjust the direction of the detection end of the rebar cover thickness detector. When the limiting bolt 18 corresponds to another limiting groove, the limiting bolt 18 is rotated in the opposite direction to enter the other limiting groove. At this point, the two connecting plates 1 that have lost their fixation are rotated again. When the roller of the rebar cover thickness detector contacts the crossbeam, the two rectangular columns 7 correspond to the positions of the other two first sliding grooves 2. Under the action of the torsion spring 25, the two rectangular columns 7 move away from each other and enter the other two first sliding grooves 2, thus completing the fixation. Finally, turning the two knobs 11 on the two loose connecting plates 1 will bring the two pressure plates 12 closer together, thus continuing to fix them to the wall. By repeating this process, the position of two connecting plates 1 can be kept fixed, while the other two connecting plates 1 can rotate. The detection position on the wall can be adjusted without removing the four connecting plates 1 from the fixation. At the same time, since the position of two connecting plates 1 is fixed, the detection position will not shift.

[0027] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-displacement clamping structure for detecting the thickness of the concrete cover of reinforcing bars, characterized in that: It includes two cylinders (3), and both ends of the two cylinders (3) are equipped with clamping mechanisms; Rotating sleeves (4) are slidably sleeved on both cylinders (3). Connecting columns (8) are fixedly installed on the sides of the two rotating sleeves (4) that are close to each other. A limiting mechanism is installed on the side of the connecting column (8). Two first sliding grooves (2) are opened on the side of both cylinders (3). The two first sliding grooves (2) on the same cylinder (3) are distributed at an angle of 180 degrees with the central axis of the cylinder (3) as the center of symmetry. The limiting mechanism is installed in cooperation with the two first sliding grooves (2) that are close to each other. A U-shaped plate (13) is slidably installed on the connecting column (8). A placement box (19) is installed on the side of the U-shaped plate (13) through a rotating mechanism. A detection hole is opened at the bottom of the placement box (19). Two threaded fixing holes are opened on the inner wall of the placement box (19). Fixing bolts (20) are threadedly installed in both of the threaded fixing holes.

2. The anti-deviation clamping structure for detecting the thickness of the reinforcing bar protective layer according to claim 1, characterized in that: The clamping mechanism includes a connecting plate (1) fixedly installed at the end of the cylinder (3). The side of the connecting plate (1) is provided with a threaded clamping hole. A threaded column (10) is threadedly installed in the threaded clamping hole. A pressure plate (12) is rotatably installed at one end of the threaded column (10). A knob (11) is fixedly installed at the other end of the threaded column (10). A guide rod (9) is fixedly installed on the side of the pressure plate (12). A guide hole is provided on the side of the connecting plate (1). The guide rod (9) is slidably installed in the guide hole.

3. The anti-deviation clamping structure for detecting the thickness of the reinforcing bar protective layer according to claim 1, characterized in that: The limiting mechanism includes a rotating column (26) rotatably mounted on the side of the connecting column (8). A rotating plate (24) is fixedly mounted on the end of the rotating column (26) away from the connecting column (8). Two extruded cylinders (23) are fixedly mounted on the side of the rotating plate (24). Rectangular holes (6) are opened on the inner walls of the two rotating sleeves (4). Rectangular columns (7) are slidably mounted in the two rectangular holes (6). The ends of the two rectangular columns (7) that are far apart from each other extend into the two first sliding grooves (2) that are close to each other. The top and bottom of the rectangular columns (7) are in contact with the inner top wall and inner bottom wall of the first sliding groove (2), respectively. A fixing ring (27) is fixedly mounted on the side of the connecting column (8). One end of a torsion spring (25) is fixedly mounted on the outer side of the rotating column (26). The other end of the torsion spring (25) is fixedly mounted on the inner ring of the fixing ring (27).

4. The anti-deviation clamping structure for detecting the thickness of the reinforcing bar protective layer according to claim 1, characterized in that: The rotating mechanism includes a rotating hole opened on the side of the U-shaped plate (13), a rotating shaft is rotatably installed in the rotating hole, a mounting plate (21) is fixedly installed at one end of the rotating shaft, the side of the mounting plate (21) is connected to the side of the placement box (19), and a limit plate (17) is fixedly installed at the other end of the rotating shaft.

5. The anti-deviation clamping structure for detecting the thickness of the reinforcing bar protective layer according to claim 4, characterized in that: The two sides of the limiting plate (17) are in contact with the sides of the connecting column (8) and the U-shaped plate (13) respectively. A threaded limiting hole is provided on the inner wall of the rotating hole. A limiting bolt (18) is installed in the threaded limiting hole. Two limiting grooves are provided on the side of the rotating shaft. The pressing end of the limiting bolt (18) goes along the rotating shaft into one of the limiting grooves.

6. The anti-deviation clamping structure for detecting the thickness of the reinforcing bar protective layer according to claim 1, characterized in that: The top and bottom of the connecting column (8) are provided with second sliding grooves (16), and sliders (15) are slidably installed in the two second sliding grooves (16). The two sliders (15) are fixedly installed on the inner top wall and inner bottom wall of the U-shaped plate (13) respectively on their opposite sides.

7. The anti-deviation clamping structure for detecting the thickness of the reinforcing bar protective layer according to claim 1, characterized in that: The top and bottom of the U-shaped plate (13) are provided with threaded mounting holes, and mounting bolts (14) are threaded into both of the threaded mounting holes.

8. The anti-deviation clamping structure for detecting the thickness of the concrete cover of reinforcing bars according to claim 1, characterized in that: Two threaded positioning holes are provided on the inner walls of the two rotating sleeves (4), and positioning bolts (5) are threadedly installed in the two threaded positioning holes.

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