A quality testing device for steel reinforcement in building construction
By combining a cylinder-driven support plate, a laser rangefinder, and a diameter measuring instrument with an adjustable rebar limiting mechanism, the problem of low efficiency and poor accuracy in rebar detection in existing technologies is solved, enabling rapid and accurate rebar quality detection, applicable to rebars of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU GUANZHI ENG INSPECTION CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-05-26
AI Technical Summary
Existing steel bar quality testing equipment is inefficient when dealing with large quantities of steel bars, and manual operation is prone to errors, making it difficult to meet the demand for efficient and accurate testing, especially for bent or irregularly shaped steel bars.
The system employs a cylinder-driven support plate, a laser rangefinder, and a diameter measuring instrument, combined with an adjustable rebar limiting mechanism, to achieve automated adjustment and fixation of rebars of different sizes, reducing manual intervention and improving detection efficiency and accuracy.
It enables rapid and continuous rebar inspection, reduces manual intervention, provides more accurate inspection data, expands the scope of application, meets the inspection needs of rebars of different sizes, and improves work efficiency and inspection accuracy.
Smart Images

Figure CN224285826U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel bar quality testing technology, specifically to a steel bar quality testing device for building engineering. Background Technology
[0002] Steel reinforcement is an indispensable material in construction engineering, and its quality directly affects the safety and durability of the project. Therefore, comprehensive and accurate quality testing of steel reinforcement is an important measure to ensure project quality. With the continuous development of construction technology and non-destructive testing technology, the equipment and techniques for steel reinforcement quality testing have been gradually improved and upgraded to better meet the stringent quality requirements of steel reinforcement in construction projects.
[0003] In the early stages of rebar quality inspection, manual inspection was the most common method. Workers could check the surface of the rebar for obvious defects, cracks, or corrosion by visual inspection, touching, and tapping. Although this method was simple and inexpensive, it had low sensitivity for detecting minute defects and was easily affected by environmental factors and manual operation, resulting in poor accuracy.
[0004] With technological advancements, an increasing number of non-destructive testing (NDT) techniques are being applied to the quality inspection of reinforcing steel bars, such as ultrasonic testing, magnetic particle testing, and eddy current testing. These techniques can detect surface and internal cracks, defects, corrosion, and other problems in reinforcing steel bars without damaging the bars themselves.
[0005] Existing methods involve manually placing rebars onto testing equipment, which is time-consuming, especially when dealing with large quantities of rebars. Manual operation often fails to meet the requirements of efficient testing. Human error can lead to inaccurate rebar placement, affecting the accuracy of the results. This is particularly pronounced when the rebars are bent or irregularly shaped. Furthermore, prolonged repetitive operations can cause operator fatigue, further exacerbating errors and potentially causing the missed detection of minute surface defects or cracks. No solutions have yet been proposed to address these technical issues. Utility Model Content
[0006] In response to the problems in related technologies, this utility model proposes a steel reinforcement quality testing device for building engineering to overcome the aforementioned technical problems existing in the existing related technologies. The purpose of this utility model is to enable faster and more continuous steel reinforcement testing, reduce manual intervention, improve work efficiency, provide more accurate testing data, and limit the movement of steel reinforcement of different sizes to meet different usage needs, expand the scope of application, and improve practicality.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a steel reinforcement quality testing device for building engineering, comprising a testing platform, a guide rod and a cylinder 1 fixedly installed on the top of the testing platform, a support plate sleeved on the guide rod, the output end of the cylinder 1 connected to one side of the support plate, a steel reinforcement limiting mechanism provided on the support plate, a bracket provided on one side of the steel reinforcement limiting mechanism, the bracket fixedly installed on the testing platform, a cylinder 2 and a cylinder 3 respectively provided on the bracket, a laser rangefinder installed on the output end of the cylinder 2, and a diameter measuring instrument installed on the output end of the cylinder 3;
[0008] The rebar limiting mechanism includes limiting plates, bidirectional screws, and moving blocks. Two limiting plates are provided, located on the top two sides of a support plate respectively. An opening is provided on the support plate. One end of the bidirectional screw is movably connected to the opening, and the other end of the bidirectional screw passes through the support plate and extends to the outside of the support plate. An adjusting handle is fixedly connected to the end of the adjusting handle, which is movably connected to the support plate. Two moving blocks are provided, respectively sleeved on both ends of the bidirectional screw and threadedly engaged with the bidirectional screw. The bottom of the limiting plate is fixedly connected to the top of the moving block, and limiting grooves are provided on opposite sides of the two limiting plates.
[0009] Preferably, the bracket is also equipped with indicator lights and a display screen.
[0010] Preferably, the bottom of the testing platform is provided with a storage box, and the bottom of the storage box is provided with casters on all four sides.
[0011] Preferably, the top of the testing platform is also equipped with several support columns, and guide plates are provided on the support columns.
[0012] Preferably, the bracket is also provided with a protective cover.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) This utility model is a steel reinforcement quality inspection device for building engineering. The support plate is moved on the guide rod by the cylinder one, which effectively improves the stability of the support plate movement and realizes the automatic adjustment of the position of the steel reinforcement. The position of the laser rangefinder can be adjusted by the cylinder two, and the position of the diameter measuring instrument can be adjusted by the cylinder three. The diameter measuring instrument can measure the diameter of the steel reinforcement, and the laser rangefinder can measure the length of the steel reinforcement. It can perform steel reinforcement inspection more quickly and continuously, reduce manual intervention, improve work efficiency, and provide more accurate inspection data. The indicator light plays a prompting role, and the display screen can display the diameter data and length data of the steel reinforcement, which improves convenience.
[0015] (2) This utility model is a steel bar quality testing device for building engineering. By setting a steel bar limiting mechanism, the adjustment handle is rotated clockwise or counterclockwise to make the bidirectional screw fixedly connected to it rotate. When the bidirectional screw rotates, it drives the two moving blocks on the bidirectional screw to move closer or further apart, thereby making the two limiting plates connected to the moving blocks move closer or further apart, thereby clamping or releasing the steel bar. It can limit steel bars of different sizes, meet different usage needs, expand the scope of application, and improve practicality. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a structural schematic diagram of the rebar limiting mechanism of this utility model. Attached image description:
[0019] 1. Testing table; 2. Guide rod; 3. Cylinder 1; 4. Support plate; 5. Bracket; 6. Cylinder 2; 7. Cylinder 3; 8. Laser rangefinder; 9. Diameter measuring instrument; 10. Limiting plate; 11. Bidirectional screw; 12. Moving block; 13. Indicator light; 14. Display screen; 15. Storage box; 16. Casters; 17. Support column; 18. Guide plate; 19. Protective cover; 20. Adjustment handle. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0021] Example
[0022] Please see Figure 1-2This utility model proposes a technical solution for a steel reinforcement quality testing device for building engineering: The device includes a testing platform 1, which has a square structure and serves to support the entire structure. A guide rod 2 and a cylinder 3 are fixedly installed on the top of the testing platform 1. A support plate 4 is sleeved on the guide rod 2. The output end of the cylinder 3 is connected to one side of the support plate 4. Specifically, the cylinder 3 drives the support plate 4 to move on the guide rod 2, effectively improving the stability of the support plate 4's movement. The steel reinforcement to be tested is placed on the support plate 4, achieving automated adjustment of the steel reinforcement's position. The support plate 4 is provided with steel reinforcement. The limiting mechanism includes a support 5 on one side, which is fixedly mounted on the detection platform 1. The support 5 is equipped with cylinders 6 and 7. A laser rangefinder 8 is mounted on the output end of cylinder 6, and a diameter measuring instrument 9 is mounted on the output end of cylinder 7. Specifically, the support 5 supports cylinders 6 and 7. Cylinder 6 can adjust the position of the laser rangefinder 8, and cylinder 7 can adjust the position of the diameter measuring instrument 9. Both the laser rangefinder 8 and the diameter measuring instrument 9 utilize existing technology. The diameter measuring instrument 9 measures the diameter of the rebar, and the laser rangefinder 8 measures the length of the rebar.
[0023] The rebar limiting mechanism includes limiting plates 10, bidirectional screws 11, and moving blocks 12. Two limiting plates 10 are provided, located on opposite sides of the top of a support plate 4. An opening is provided on the support plate 4. One end of the bidirectional screw 11 is movably connected to the opening, and the other end of the bidirectional screw 11 passes through the support plate 4 and extends to the outside of the support plate 4. An adjusting handle 20 is fixedly connected to the end of the adjusting handle 20, which is movably connected to the support plate 4. Two moving blocks 12 are provided, respectively fitted onto both ends of the bidirectional screw 11 and threaded onto the bidirectional screw 11. In conjunction with this, the bottom of the limiting plate 10 is fixedly connected to the top of the moving block 12. Limiting grooves are opened on opposite sides of the two limiting plates 10. Specifically, the rebar to be tested is placed between the two limiting plates 10. By rotating the adjusting handle 20 clockwise, the bidirectional screw 11 fixedly connected to it is rotated. When the bidirectional screw 11 rotates, it drives the two moving blocks 12 on the bidirectional screw 11 to move closer to each other, thereby bringing the two limiting plates 10 connected to the moving blocks 12 closer to each other, thus clamping the rebar and improving the accuracy of the test.
[0024] Please see Figure 1 As shown, the bracket 5 is further equipped with an indicator light 13 and a display screen 14.
[0025] In this embodiment, the indicator light 13 serves as a prompt, and the display screen 14 can display the diameter and length data of the reinforcing bar, improving convenience.
[0026] Please see Figure 1As shown, the bottom of the testing platform 1 is further provided with a storage box 15, and the bottom of the storage box 15 is provided with casters 16 on all four sides.
[0027] In this embodiment, the storage box 15 can support the testing table 1, and the universal wheels 16 facilitate the movement of the testing table 1.
[0028] Please see Figure 1 As shown, furthermore, the top of the testing platform 1 is also equipped with several support columns 17, and guide plates 18 are provided on the support columns 17.
[0029] In this embodiment, the support column 17 serves to support the guide plate 18, which can guide the reinforcing bars.
[0030] Please see Figure 1 As shown, a protective cover 19 is further provided on the bracket 5.
[0031] In this embodiment, the protective cover 19 serves a protective function and can improve the accuracy of detection.
[0032] The working principle of this utility model:
[0033] First, the reinforcing bars are fixed by the reinforcing bar limiting mechanism. The reinforcing bar to be tested is placed between two limiting plates 10. By rotating the adjusting handle 20 clockwise, the bidirectional screw 11 fixedly connected to it is rotated. When the bidirectional screw 11 rotates, it drives the two moving blocks 12 on the bidirectional screw 11 to move closer to each other, thereby bringing the two limiting plates 10 connected to the moving blocks 12 closer to each other and clamping the reinforcing bar, which helps to improve the accuracy of the test. The position of the laser rangefinder 8 can be adjusted by cylinder 2 6, and the position of the diameter measuring instrument 9 can be adjusted by cylinder 3 7. The diameter measuring instrument 9 can measure the diameter of the reinforcing bar, and the laser rangefinder 8 can measure the length of the reinforcing bar. The support plate 4 is moved on the guide rod 2 by cylinder 1 3, which effectively improves the stability of the movement of the support plate 4 and realizes the automated adjustment of the position of the reinforcing bar. The indicator light 13 serves as a prompt, and the display screen 14 can display the diameter and length data of the reinforcing bar, improving convenience.
[0034] This invention enables faster and more continuous rebar inspection, reduces manual intervention, improves work efficiency, provides more accurate inspection data, and can limit the movement of rebars of different sizes to meet different usage needs, expand the scope of application, and improve practicality.
[0035] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection 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.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quality testing device for reinforcing steel bars in building construction, characterized in that, The test platform (1) includes a guide rod (2) and a cylinder (3) fixedly installed on the top of the test platform (1). A support plate (4) is sleeved on the guide rod (2). The output end of the cylinder (3) is connected to one side of the support plate (4). A rebar limiting mechanism is provided on the support plate (4). A bracket (5) is provided on one side of the rebar limiting mechanism. The bracket (5) is fixedly installed on the test platform (1). A cylinder (6) and a cylinder (7) are respectively provided on the bracket (5). A laser rangefinder (8) is installed on the output end of the cylinder (6). A diameter measuring instrument (9) is installed on the output end of the cylinder (7). The rebar limiting mechanism includes a limiting plate (10), a bidirectional screw (11), and a moving block (12). There are two limiting plates (10), which are located on the top two sides of the support plate (4). The support plate (4) has an opening. One end of the bidirectional screw (11) is movably connected to the opening. The other end of the bidirectional screw (11) passes through the support plate (4) and extends to the outside of the support plate (4). An adjusting handle (20) is fixedly connected to the end of the adjusting handle (20). The adjusting handle (20) is movably connected to the support plate (4). There are two moving blocks (12), which are respectively sleeved on both ends of the bidirectional screw (11) and threadedly engaged with the bidirectional screw (11). The bottom of the limiting plate (10) is fixedly connected to the top of the moving block (12). Limiting grooves are opened on the opposite side of the two limiting plates (10).
2. The steel reinforcement quality testing equipment for building engineering according to claim 1, characterized in that: The bracket (5) is also equipped with an indicator light (13) and a display screen (14).
3. The steel reinforcement quality testing equipment for building engineering according to claim 1, characterized in that: The bottom of the testing platform (1) is provided with a storage box (15), and the bottom of the storage box (15) is provided with casters (16) on all four sides.
4. The steel reinforcement quality testing equipment for building engineering according to claim 1, characterized in that: The top of the testing platform (1) is also equipped with several support columns (17), and guide plates (18) are provided on the support columns (17).
5. The steel reinforcement quality testing equipment for building engineering according to claim 1, characterized in that: The bracket (5) is also equipped with a protective cover (19).