A device for detecting the spacing of reinforcing bars in highway bridge construction

Abstract

This utility model relates to the field of road and bridge construction technology, and discloses a rebar spacing detection device for highway bridge construction. It includes a detection box and several detection rods. A detection port is opened on one side of the detection box. The detection rods are perpendicular to the detection port and slidably connected to the detection box. An operation port and an observation port are opened parallel to each other on the top of the detection box. A measuring ruler is provided inside the observation port. A pointer is provided at one end of the detection rod below the measuring ruler. A toggle rod is provided at the top of the detection rod, passing through the operation port. This utility model, through the design of several outer detection rods, inner detection rods, and permanent magnets, can simultaneously measure the distance between multiple rebars. It is suitable for situations with large measurement requirements and dense rebar distribution. Operation is simple; the distance between the outer detection rods can be adjusted by simply toggling the toggle rod. During measurement, the rods are attracted to the rebars to be measured by the permanent magnets, improving the convenience for workers and demonstrating high practicality.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge construction technology, and in particular to a steel bar spacing detection device for highway bridge construction. Background Technology

[0002] In bridge engineering, there are many different types, varieties, and spacings of steel bars. Currently, when bridges are being constructed, steel bars are used for installation and pouring on-site. However, many steel hoops are added to the surface of the steel bars to ensure the stability of the entire steel bar column. However, the distance between each layer of steel hoops has a specified standard. Therefore, construction workers need to use a tape measure to measure before construction. However, using a tape measure requires workers to accurately locate the edge of each steel bar before they can observe it. Because the tape measure is relatively soft, it is not easy to use and measure.

[0003] For example, the Chinese utility model patent with publication number "CN217110765U" entitled "A Rebar Spacing Detection Device for Highway Bridge Construction" includes a straight cylindrical frame. Slide plates are fixedly connected to the upper and lower parts of the right side of the inner cavity of the straight cylindrical frame. A slider is slidably installed on the left side of the upper slide plate, and a vertical rod is fixedly connected to the left side of the slider. A limit slider is slidably installed inside the lower slide plate. This utility model relates to the field of bridge construction technology. This rebar spacing detection device for highway bridge construction allows for easy clamping of the rebar by simply pressing the pull handle with the vertical rod, eliminating the need for cumbersome straightening adjustments like with a measuring tape. Accurate readings can be obtained directly through the pointer on the surface of the clamping seat in conjunction with a scale. This structure greatly increases the efficiency of rebar detection, providing convenience for workers and meeting the practical needs of current construction sites.

[0004] In the above technical solution, the steel bar needs to be clamped by a clamping seat during measurement. In some narrow working spaces where the steel bars are densely distributed, it may be inconvenient to measure the spacing between the steel bars. On the other hand, the above technical solution can only measure the distance between two steel bars at a time. For working conditions with a large measurement demand and dense steel bar distribution, the above technical solution cannot measure the distance between multiple steel bars at the same time, which has certain limitations when used.

[0005] Based on this, in order to further improve the quality of rebar installation, this project has innovatively developed a rebar spacing detection device for highway bridge construction, which provides a new solution to the above-mentioned technical problems. Utility Model Content

[0006] Therefore, it is necessary to provide a rebar spacing detection device for highway bridge construction to address the problems raised in the background art.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] The aforementioned rebar spacing detection device for highway bridge construction specifically includes a detection box and several detection rods. A detection port is provided on one side of the detection box. The detection rods are perpendicular to the detection port and slidably connected to the detection box. An operation port and an observation port are provided parallel to each other on the top of the detection box. A measuring ruler is provided inside the observation port. A pointer is provided at one end of the detection rod and below the measuring ruler. A toggle rod is provided at the top of the detection rod and passes through the operation port.

[0009] Preferably, the detection rod includes an outer detection rod, which is perpendicular to the detection port. The actuating rod is fixed to the top of the outer detection rod. An inner detection rod is slidably connected to the inner side of the outer detection rod. A permanent magnet is fixed to the end of the inner detection rod near the detection port. A first spring is connected to the end of the inner detection rod away from the permanent magnet. The end of the first spring away from the inner detection rod is connected to the inner wall of the outer detection rod.

[0010] Preferably, a first slider is fixed at the end of the outer detection rod away from the permanent magnet. A connecting block is provided on the outer side of the first slider. A first groove adapted to the first slider is opened on the inner side of the connecting block. The outer detection rod is slidably connected to the connecting block in the vertical direction through the cooperation of the first slider and the first groove. The pointer is fixed at the top of the end of the connecting block away from the outer detection rod. A fifth groove is opened on the inner side of the detection box and at the top and bottom of the connecting block. The connecting block is slidably connected to the inner side of the fifth groove in the horizontal direction.

[0011] Preferably, a telescopic inner rod is slidably connected to the inner side of the bottom of the outer detection rod, a second spring is connected to the top of the telescopic inner rod, the top of the second spring is connected to the outer detection rod, a first sliding plate is fixed to the bottom of the telescopic inner rod, a third sliding groove adapted to the first sliding plate is opened on the inner side of the detection box, a second sliding plate is fixed to the outer side of the actuating rod, a second sliding groove adapted to the second sliding plate is opened on the inner side of the detection box, and the outer detection rod is slidably connected to the detection box through the cooperation of the third sliding groove with the first sliding plate and the cooperation of the second sliding groove with the second sliding plate.

[0012] Preferably, a plurality of first balls are embedded and rolledly connected to the bottom of the first sliding plate and the top inner side of the second sliding plate, and the first sliding plate and the second sliding plate are slidably connected to the inner side of the detection box through the first balls.

[0013] Preferably, a plurality of third balls are embedded and rolled on the inner sides of the top and bottom of the connecting block, and the connecting block is slidably connected to the inner side of the fifth groove through the third balls.

[0014] Preferably, a second slider is fixed on both sides of the pointer, and a sixth sliding groove adapted to the second slider is opened on both sides of the inner side of the detection box and below the measuring ruler. The pointer is slidably connected to the inner side of the detection box through the cooperation of the second slider and the sixth sliding groove.

[0015] Preferably, the top of the pointer is coated with fluorescent paint.

[0016] Preferably, the testing box has handles fixed at both ends.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention, through the design of several outer detection rods, inner detection rods, and permanent magnets, can simultaneously measure the distance between multiple reinforcing bars. It is suitable for working conditions with large measurement needs and dense distribution of reinforcing bars. It is also simple to operate; the distance between the outer detection rods can be adjusted by simply moving a lever. During measurement, the rods are attracted to the reinforcing bars to be measured by the permanent magnets, which improves the convenience of measurement for staff and makes it highly practical. Attached Figure Description

[0019] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the operating port and the observation port of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the testing box of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the outer rod, connecting block, and pointer of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the inner rod and permanent magnet of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the second slider and the sixth groove of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the second and third slide grooves of this utility model.

[0027] The markings in the diagram are explained as follows:

[0028] 1. Detection box; 2. Detection outer rod; 3. Detection port; 4. Operation port; 5. Observation port; 6. Measuring ruler; 7. Actuating rod; 8. Detection inner rod; 9. Permanent magnet; 10. First spring; 11. First slider; 12. Connecting block; 13. Pointer; 14. Telescopic inner rod; 15. Second spring; 16. First sliding plate; 17. Second sliding plate; 18. First ball bearing; 19. First slide groove; 20. Second slider; 22. Second slide groove; 23. Third slide groove; 26. Third ball bearing; 27. Fifth slide groove; 28. Sixth slide groove; 29. ​​Handle. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] Please refer to Figure 1-7 This utility model provides a rebar spacing detection device for highway bridge construction, comprising a detection box 1 and several detection rods. During measurement, the detection rods are aligned with the rebars to be measured, and the distance between the detection rods is the distance between the two rebars. A detection port 3 is provided on one side of the detection box 1 to facilitate the detection rods extending out of the detection port 3 and aligning with the rebars. The detection rods are perpendicular to the detection port 3 and slidably connected to the detection box 1 to facilitate adjustment of the distance between the detection rods to meet measurement requirements. An operation port 4 and an observation port 5 are provided parallel to each other on the top of the detection box 1. A measuring ruler 6 is provided inside the observation port 5. The measuring ruler 6 is made of transparent material and has scale lines on it. A pointer 13 is provided at one end of the detection rod and below the measuring ruler 6. The position of the pointer 13 below the measuring ruler 6 can be observed through the measuring ruler 6 to determine the corresponding scale position of the pointer 13 and the measuring ruler 6 for measurement. A toggle rod 7 is provided at the top of the detection rod and passes through the operation port 4. By toggling the toggle rod 7, the position of the corresponding detection rod inside the detection box 1 can be adjusted.

[0031] It should be noted that the width of the detection port 3 is greater than the diameter of the detection outer rod 2, so that the detection outer rod 2 can move in the vertical direction, thereby adapting to the spacing measurement between steel bars with slightly different heights.

[0032] Please refer to Figure 3-5 The detection rod includes an outer detection rod 2, which is perpendicular to the detection port 3. A toggle rod 7 is fixed to the top of the outer detection rod 2. When the toggle rod 7 is moved, the outer detection rod 2 moves simultaneously. An inner detection rod 8 is slidably connected to the inner side of the outer detection rod 2. A permanent magnet 9 is fixed to the end of the inner detection rod 8 near the detection port 3. A first spring 10 is connected to the end of the inner detection rod 8 away from the permanent magnet 9. The end of the first spring 10 away from the inner detection rod 8 is connected to the inner wall of the outer detection rod 2. When the first spring 10 is in its natural state, the inner detection rod 8 retracts into the outer detection rod 2. When the toggle rod 7 is moved, causing the inner detection rod 8 and the permanent magnet 9 to align with the outer detection rod 2 and approach the rebar to be tested... The permanent magnet 9 will be attracted to the steel bar. At this time, the inner detection rod 8 extends from the inside of the outer detection rod 2. After the measurement is completed, the staff will remove the outer detection rod 2, the inner detection rod 8 and the permanent magnet 9 from the steel bar. At this time, the permanent magnet 9 will detach from the steel bar. Under the action of the first spring 10, the inner detection rod 8 and the permanent magnet 9 will reset and retract into the outer detection rod 2 again. During the measurement, the toggle rod 7 will move the outer detection rod 2. When the outer detection rod 2 moves to the position of the corresponding steel bar, the permanent magnet 9 will attract the steel bar, causing the first spring 10 to extend. The permanent magnet 9 will be magnetically connected to the steel bar. Then, the scale corresponding to the pointer 13 will be observed. The steel bar spacing can be obtained by simple calculation.

[0033] Please refer to Figure 3-4 The outer detection rod 2, at the end furthest from the permanent magnet 9, is fixed with a first slider 11. A connecting block 12 is provided on the outer side of the first slider 11, and a first groove 19, adapted to the first slider 11, is provided on the inner side of the connecting block 12. The outer detection rod 2 is vertically connected to the connecting block 12 through the cooperation of the first slider 11 and the first groove 19, allowing the outer detection rod 2 to slide vertically along the first groove 19. This accommodates the distance measurement needs between reinforcing bars that are not in the same vertical or horizontal plane. When the reinforcing bars to be measured are staggered, the position of the corresponding outer detection rod 2 can be adjusted simultaneously in both the horizontal and vertical directions for measurement. The pointer 13 is fixed at the top of the connecting block 12 away from the outer detection rod 2. The inner side of the detection box 1 and the top and bottom of the connecting block 12 are provided with a fifth sliding groove 27. The connecting block 12 is slidably connected to the inner side of the fifth sliding groove 27. The measurement result can be read by the distance between the pointers 13 corresponding to the steel bars to be measured. During the test, each outer detection rod 2 and inner detection rod 8 can be connected to different steel bars through a permanent magnet 9. The distance between the steel bars to be measured can be obtained by the scale on the measuring ruler 6 corresponding to the pointer 13. Since there are several detection rods, more than one steel bar spacing value can be obtained in one measurement process.

[0034] Please refer to Figure 5The outer detection rod 2 is slidably connected to a telescopic inner rod 14 at its bottom inner side. A second spring 15 is connected to the top of the telescopic inner rod 14. When the second spring 15 is in its natural state, the outer detection rod 2 is at its initial height position. When it is necessary to adjust the height of the outer detection rod 2 to measure the spacing of the reinforcing bars between different height positions, the lever 7 is pulled up or pressed down to bring the outer detection rod 2 to the appropriate height position. The top of the second spring 15 is connected to the outer detection rod 2. A first sliding plate 16 is fixed to the bottom of the telescopic inner rod 14. A third sliding groove 23 adapted to the first sliding plate 16 is opened on the inner side of the detection box 1. A second sliding plate is fixed to the outer side of the lever 7. 17. The inner side of the detection box 1 is provided with a second sliding groove 22 that is adapted to the second sliding plate 17. The detection outer rod 2 is slidably connected to the detection box 1 through the cooperation of the third sliding groove 23 with the first sliding plate 16 and the cooperation of the second sliding groove 22 with the second sliding plate 17. The cooperation of the first slider 11 with the connecting block 12 and the telescopic inner rod 14 with the detection outer rod 2 makes the vertical displacement of the detection outer rod 2 more stable. The cooperation of the first sliding plate 16 with the third sliding groove 23 and the second sliding plate 17 with the second sliding groove 22 makes the horizontal movement of the detection outer rod 2 more stable, which makes it easier for the staff to adjust the horizontal and vertical positions of the detection outer rod 2.

[0035] A plurality of first ball bearings 18 are embedded and rolled on the bottom of the first sliding plate 16 and the top inner side of the second sliding plate 17. A plurality of third ball bearings 26 are embedded and rolled on the top and bottom inner sides of the connecting block 12. The connecting block 12 is slidably connected to the inner side of the fifth slide groove 27 through the third ball bearings 26. The first sliding plate 16 and the second sliding plate 17 are slidably connected to the inner side of the detection box 1 through the first ball bearings 18. The arrangement of the first ball bearings 18 and the third ball bearings 26 makes the horizontal movement of the connecting block 12, the first sliding plate 16 and the second sliding plate 17 smoother.

[0036] Please refer to Figure 3-7 The pointer 13 is fixed with second sliders 20 on both sides. The inside of the detection box 1 and below the measuring ruler 6, the sixth slide groove 28 is provided on both sides to match the second sliders 20. The pointer 13 is slidably connected to the inside of the detection box 1 through the cooperation of the second sliders 20 and the sixth slide groove 28. The cooperation of the sixth slide groove 28 and the second sliders 20 makes the horizontal movement of the pointer 13 more stable.

[0037] The top of pointer 13 is coated with fluorescent paint, making it easier to observe the scale on the measuring ruler 6 corresponding to pointer 13.

[0038] The testing box 1 is fixed with handles 29 at both ends, making it easy for staff to pick up the testing box 1.

[0039] The specific working principle of the rebar spacing detection device for highway bridge construction provided by this utility model is as follows:

[0040] During measurement, the toggle lever 7 moves the outer detection rod 2. When the outer detection rod 2 moves to the position of the corresponding steel bar, the permanent magnet 9 will attract the steel bar, causing the first spring 10 to extend. The permanent magnet 9 is magnetically connected to the steel bar. Then, the scale corresponding to the pointer 13 is observed, and the steel bar spacing can be obtained through simple calculation.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A device for detecting the spacing of reinforcing bars in highway bridge construction, characterized in that, The device includes a detection box (1) and several detection rods. A detection port (3) is provided on one side of the detection box (1). The detection rods are perpendicular to the detection port (3) and slidably connected to the detection box (1). An operation port (4) and an observation port (5) are provided parallel to each other on the top of the detection box (1). A measuring ruler (6) is provided inside the observation port (5). A pointer (13) is provided at one end of the detection rod and below the measuring ruler (6). A toggle rod (7) is provided at the top of the detection rod and passes through the operation port (4).

2. The rebar spacing detection device for highway bridge construction according to claim 1, characterized in that, The detection rod includes an outer detection rod (2), which is perpendicular to the detection port (3). The actuating rod (7) is fixed to the top of the outer detection rod (2). An inner detection rod (8) is slidably connected to the inner side of the outer detection rod (2). A permanent magnet (9) is fixed to the end of the inner detection rod (8) near the detection port (3). A first spring (10) is connected to the end of the inner detection rod (8) away from the permanent magnet (9). One end of the first spring (10) away from the inner detection rod (8) is connected to the inner wall of the outer detection rod (2).

3. The rebar spacing detection device for highway bridge construction according to claim 2, characterized in that, The detection rod (2) is fixed with a first slider (11) at one end away from the permanent magnet (9). A connecting block (12) is provided on the outside of the first slider (11). A first groove (19) adapted to the first slider (11) is opened on the inside of the connecting block (12). The detection rod (2) is slidably connected to the connecting block (12) in the vertical direction through the cooperation of the first slider (11) and the first groove (19). The pointer (13) is fixed at the top of the end of the connecting block (12) away from the detection rod (2). A fifth groove (27) is opened on the inside of the detection box (1) and at the top and bottom of the connecting block (12). The connecting block (12) is slidably connected to the inside of the fifth groove (27).

4. The rebar spacing detection device for highway bridge construction according to claim 3, characterized in that, The detection outer rod (2) is slidably connected to the inner side of the bottom of the telescopic inner rod (14). The top of the telescopic inner rod (14) is connected to the second spring (15). The top of the second spring (15) is connected to the detection outer rod (2). The bottom of the telescopic inner rod (14) is fixed with a first sliding plate (16). The inner side of the detection box (1) is provided with a third sliding groove (23) that is adapted to the first sliding plate (16). The outer side of the actuating rod (7) is fixed with a second sliding plate (17). The inner side of the detection box (1) is provided with a second sliding groove (22) that is adapted to the second sliding plate (17). The detection outer rod (2) is slidably connected to the detection box (1) through the cooperation of the third sliding groove (23) with the first sliding plate (16) and the cooperation of the second sliding groove (22) with the second sliding plate (17).

5. A rebar spacing detection device for highway bridge construction according to claim 4, characterized in that, A plurality of first balls (18) are embedded and rolled on the bottom of the first sliding plate (16) and the top inner side of the second sliding plate (17). The first sliding plate (16) and the second sliding plate (17) are slidably connected to the inner side of the detection box (1) through the first balls (18).

6. The rebar spacing detection device for highway bridge construction according to claim 3, characterized in that, The connecting block (12) has several third balls (26) embedded and rolled on its top and bottom inner sides, and the connecting block (12) is slidably connected to the inner side of the fifth groove (27) through the third balls (26).

7. The rebar spacing detection device for highway bridge construction according to claim 3, characterized in that, The pointer (13) is fixed with a second slider (20) on both sides. The inside of the detection box (1) and below the measuring ruler (6) are provided with a sixth slide groove (28) that is compatible with the second slider (20). The pointer (13) is slidably connected to the inside of the detection box (1) through the cooperation of the second slider (20) and the sixth slide groove (28).

8. The rebar spacing detection device for highway bridge construction according to claim 3, characterized in that, The pointer (13) is coated with fluorescent paint on its top.

9. The rebar spacing detection device for highway bridge construction according to claim 1, characterized in that, The testing box (1) has handles (29) fixed at both ends.

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