Steel structure bolt tightness testing device for building construction supervision

Abstract

This utility model discloses a bolt tightness testing device for building construction supervision, relating to the technical field of bolt tightness testing equipment. The device includes a workbench with a control box mounted on its lower end and a first fixed bracket fixedly connected to its upper end. The testing components include two first limiting plates, a first connecting rod fixedly connected to the output end of a second drive motor, two second limiting plates fixedly connected to the right side of the first connecting rod, a second connecting rod fixedly connected to the output end of a fourth drive motor, two third limiting plates fixedly connected to the lower end of the second connecting rod, and a testing box fixedly connected to the output end of a third drive motor. A torque sensor is installed inside the testing box. By adjusting the rotation of the first connecting rod, the second connecting rod, and the testing box, the left and right testing components can work independently or collaboratively, enabling batch testing of bolts on the entire surface of large components, improving testing efficiency and the accuracy of testing data.

Description

Technical Field

[0001] This utility model relates to the field of fastening testing equipment technology, and in particular to a device for testing the tightness of steel structure bolts used in building construction supervision. Background Technology

[0002] In modern building construction, steel structures are widely used due to their advantages such as high strength, light weight, and fast construction speed. Bolt connections, as a crucial connection method in steel structures, directly affect the stability and safety of the entire structure. If the bolts are not tightened sufficiently, after the building is put into use, under the long-term influence of various external forces such as wind, earthquakes, and the building's own weight, the bolts may loosen, slip, or even fall off, leading to deformation and displacement of the steel structure. In severe cases, this can cause partial collapse of the building, resulting in major safety accidents and endangering people's lives and property. Chinese utility model patent, authorized publication number "CN222124989U", discloses an energy-saving fastening testing device for steel structure engineering, including a support box, a workbench, a testing mechanism, and a clamping mechanism. The workbench is fixedly installed on the top of the support box, and the clamping mechanism is set on the workbench. A fixed frame is fixedly installed on the top of the workbench, and the clamping mechanism is set on the fixed frame. The testing mechanism includes a hydraulic cylinder and a testing head.

[0003] The above-mentioned technical solution can apply pressure to the steel structure by moving the detection head, thereby achieving the purpose of fastening detection of the steel structure. However, the above-mentioned technical solution still has certain defects. Since the detection head is fixed at the output end of the hydraulic cylinder, and since multiple points of the steel structure need to be detected during the detection process, the detection head of this device can only move up and down, which is not convenient for detecting the gas position of the steel structure, reducing detection efficiency and the accuracy of detection data. Therefore, this utility model proposes a new solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a steel structure bolt tightness testing device for building construction supervision. This device can solve the problem that, since multiple points of the steel structure need to be tested during the testing process, the testing head of the device can only move up and down, which is not convenient for detecting the gas position of the steel structure, thus reducing the testing efficiency and the accuracy of the testing data.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel structure bolt tightness testing device for building construction supervision, including a workbench, a control box installed at the lower end of the workbench, and a first fixed bracket fixedly connected to the upper end of the workbench; The detection component is mounted on the first fixed bracket and includes two first limiting plates. Both first limiting plates are located on the right side of the first fixed bracket. A second drive motor is fixedly connected to the surface of the front first limiting plate. A first connecting rod is fixedly connected to the output end of the second drive motor. The first connecting rod is rotatably connected to the two first limiting plates. Two second limiting plates are fixedly connected to the right side of the first link. A fourth drive motor is fixedly connected to the surface of the front second limiting plate. The output end of the fourth drive motor is fixedly connected to the second link. The second link is rotatably connected to the two second limiting plates. The lower end of the second link is fixedly connected to two third limit plates. The surface of the front third limit plate is fixedly connected to a third drive motor. The output end of the third drive motor is fixedly connected to a detection box. The second link and the two third limit plates are rotatably connected to the detection box. The inside of the testing box is fixedly connected to a miniature drive motor. A torque sensor is installed inside the testing box. The detection shaft of the torque sensor is fixedly connected to the output end of the miniature drive motor. The other end of the detection shaft of the torque sensor is clamped with a bolt sleeve.

[0006] Preferably, there are two detection components, which are symmetrically arranged on the left and right sides of the first fixed bracket.

[0007] Preferably, a first drive motor is fixedly connected to the upper end of the first fixed bracket, a movable frame is fixedly connected to the output end of the first drive motor, and four first limiting plates are fixedly connected to the movable frame. Two grooves are provided on both the left and right sides of the first fixed bracket, and two reinforcing ribs are fixedly connected to the upper end of the first fixed bracket.

[0008] Preferably, the surface of the workbench is provided with an installation groove, and a steel structure conveyor belt is installed inside the installation groove. Two fixing plates are fixedly connected to the lower end of the workbench.

[0009] Preferably, a hydraulic rod is fixedly connected inside the first fixed bracket, a steel structure limiting plate is fixedly connected to the output end of the hydraulic rod, and a second fixed bracket is fixedly connected to the upper end of the worktable. There are four second fixed supports, which are symmetrically arranged on both sides of the upper end of the workbench. Two connecting supports are fixedly connected to both the left and right ends of the first fixed support. The four connecting supports are fixedly connected to the corresponding second fixed supports.

[0010] Preferably, hydraulic rods are also fixedly connected inside the four second fixed brackets, and steel structure limiting plates are also fixedly connected to the output ends of the hydraulic rods inside the four second fixed brackets.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This steel structure bolt tightness testing device for building construction supervision can accurately reach multiple bolt points on the steel structure surface by adjusting the rotation of the first connecting rod, the second connecting rod, and the testing box, thereby improving the testing coverage. The left and right testing components can work independently or collaboratively to increase the coverage width of a single test. Combined with the intermittent conveying of the steel structure conveyor belt, it can achieve batch testing of bolts on the entire surface of large components. Compared with traditional single-axis testing devices, it improves testing efficiency and the accuracy of testing data. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the steel structure bolt tightness testing device for building construction supervision according to this utility model; Figure 2 This is a schematic diagram of the steel structure conveyor belt of this utility model; Figure 3 This is a schematic diagram of the first fixed bracket of this utility model; Figure 4 This is a schematic diagram of the testing box of this utility model; Figure 5 This is a schematic diagram of the bolt sleeve of this utility model.

[0013] Reference numerals: 1. Workbench; 2. Steel structure conveyor belt; 3. Fixed plate; 4. First fixed bracket; 5. Second fixed bracket; 6. Connecting bracket; 7. Hydraulic rod; 8. Steel structure limiting plate; 9. Groove; 10. First drive motor; 11. Movable frame; 12. First limiting plate; 13. Second drive motor; 14. First connecting rod; 15. Second limiting plate; 16. Fourth drive motor; 17. Second connecting rod; 18. Third limiting plate; 19. Third drive motor; 20. Detection box; 21. Miniature drive motor; 22. Torque sensor; 23. Bolt sleeve. Detailed Implementation

[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0015] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying 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.

[0016] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0017] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0018] Please see Figure 1-5 This utility model provides a technical solution: a steel structure bolt tightness testing device for building construction supervision, including a workbench 1, a control box installed at the lower end of the workbench 1, a first fixed bracket 4 fixedly connected to the upper end of the workbench 1, and a testing component. The testing component is set on the first fixed bracket 4 and includes two first limiting plates 12, both of which are located on the right side of the first fixed bracket 4. A second drive motor 13 is fixedly connected to the surface of the front first limiting plate 12, and a first connecting rod 14 is fixedly connected to the output end of the second drive motor 13. The first connecting rod 14 is rotatably connected to the two first limiting plates 12. Two second limiting plates 15 are fixedly connected to the right side of the first connecting rod 14, and a second limiting plate 15 is fixedly connected to the surface of the front second limiting plate 15. Four drive motors 16, the output end of the fourth drive motor 16 is fixedly connected to a second connecting rod 17, the second connecting rod 17 is rotatably connected to two second limiting plates 15, the lower end of the second connecting rod 17 is fixedly connected to two third limiting plates 18, the surface of the front third limiting plate 18 is fixedly connected to a third drive motor 19, the output end of the third drive motor 19 is fixedly connected to a detection box 20, the second connecting rod 17 and the two third limiting plates 18 are all rotatably connected to the detection box 20, the inside of the detection box 20 is fixedly connected to a micro drive motor 21, the inside of the detection box 20 is installed with a torque sensor 22, the detection shaft of the torque sensor 22 is fixedly connected to the output end of the micro drive motor 21, and the other end of the detection shaft of the torque sensor 22 is clamped with a bolt sleeve 23.

[0019] There are two detection components, which are symmetrically arranged on the left and right sides of the first fixed bracket 4.

[0020] The upper end of the first fixed bracket 4 is fixedly connected to the first drive motor 10, the output end of the first drive motor 10 is fixedly connected to the movable frame 11, the four first limit plates 12 are all fixedly connected to the movable frame 11, two grooves 9 are opened on the left and right sides of the first fixed bracket 4, and two reinforcing ribs are fixedly connected to the upper end of the first fixed bracket 4.

[0021] The surface of the workbench 1 is provided with an installation groove, and a steel structure conveyor belt 2 is installed inside the installation groove. Two fixing plates 3 are fixedly connected to the lower end of the workbench 1.

[0022] The first fixed bracket 4 is internally fixedly connected to a hydraulic rod 7. The output end of the hydraulic rod 7 is fixedly connected to a steel structure limiting plate 8. The upper end of the workbench 1 is fixedly connected to a second fixed bracket 5. There are four second fixed brackets 5, which are symmetrically arranged on both sides of the upper end of the workbench 1. The left and right ends of the first fixed bracket 4 are fixedly connected to two connecting brackets 6. The four connecting brackets 6 are fixedly connected to the corresponding second fixed brackets 5.

[0023] Hydraulic rods 7 are also fixedly connected inside the four second fixed brackets 5, and steel structure limiting plates 8 are also fixedly connected to the output ends of the hydraulic rods 7 inside the four second fixed brackets 5.

[0024] When using this device, the steel structure component to be tested is placed on the steel structure conveyor belt 2 on the surface of the workbench 1. The steel structure conveyor belt 2 is made of anti-slip rubber material to ensure that the component does not slip during the conveying process.

[0025] Start the steel structure conveyor belt 2 to transport the steel structure to the inspection area at a uniform speed. The conveying speed can be adjusted by the frequency converter inside the control box under the workbench 1 to adapt to the inspection requirements of components of different sizes.

[0026] When the steel structure reaches the testing area, the hydraulic rod 7 inside the first fixed bracket 4 is activated, driving the steel structure limiting plate 8 to move downward and press the steel structure component from both sides; the four second fixed brackets 5 on both sides of the upper end of the workbench 1 move synchronously, and the hydraulic rod 7 inside them drives the steel structure limiting plate 8 to clamp the steel structure from the side, forming a four-way limit in the up, down, left, and right directions, ensuring that the component does not move during the testing process.

[0027] The first drive motor 10 at the upper end of the first fixed bracket 4 starts, driving the movable frame 11 to rotate. The four first limit plates 12 on both sides of the movable frame 11 rotate accordingly, causing the detection component to rotate in the horizontal direction, which facilitates the covering of the bolts on the edge of the steel structure.

[0028] The second drive motor 13 on the surface of the first limiting plate 12 drives the first connecting rod 14 to rotate, the fourth drive motor 16 on the surface of the second limiting plate 15 drives the second connecting rod 17 to rotate, and the third drive motor 19 is installed on the surface of the third limiting plate 18 on the front side. Its output end drives the detection box 20 to rotate, which facilitates the adjustment of the angle and position of the torque sensor 22 and the bolt sleeve 23, and facilitates the detection of bolts in multiple positions.

[0029] Through the above multi-axis adjustment, the bolt sleeve 23 inside the test box 20 is accurately fitted onto the steel structure bolt. The sleeve specifications are replaceable (M6-M30) to adapt to bolts of different sizes.

[0030] The micro drive motor 21 inside the test box 20 starts and applies torque at a rate of 5-10 N·m / s. At the same time, the torque sensor 22 collects the torque value in real time. When the torque reaches 80%-120% of the design value, the micro drive motor 21 stops. The torque sensor 22 transmits the peak torque data to the data processor inside the control box at the lower end of the workbench 1. The data is automatically recorded and compared with the standard value to determine whether the bolt tightness is qualified.

[0031] When the steel structure bolts are located at the edge of the component, the first drive motor 10 drives the movable frame 11 to rotate, causing the first limiting plate 12 to slide in the grooves 9 on both sides of the first fixed bracket 4, covering the edge area that traditional detection devices cannot reach.

[0032] The two detection components symmetrically arranged on the left and right sides of the device can work synchronously. For large steel structure components, batch detection of bolts on the entire surface can be achieved through intermittent conveying of the steel structure conveyor belt 2, which improves efficiency compared to traditional single-axis detection.

[0033] Furthermore, by adjusting the rotation of the first connecting rod 14, the second connecting rod 17, and the detection box 20, multiple bolt points on the steel structure surface can be accurately reached, improving the detection coverage. The detection components on the left and right sides can work independently or collaboratively, increasing the coverage width of a single detection. Combined with the intermittent conveying of the steel structure conveyor belt 2, batch detection of bolts on the entire surface of large components can be achieved. Compared with traditional single-axis detection devices, this improves detection efficiency and the accuracy of detection data.

[0034] Structural Description: Workbench 1: The main support structure of the device, with the first fixed bracket 4 and steel structure conveyor belt 2 installed at the upper end, and the fixed plate 3 fixed at the lower end and the built-in control box, providing a stable installation platform and data processing space; Steel structure conveyor belt 2: Installed on the surface of workbench 1, made of anti-slip rubber, conveying steel structure components to the inspection area, and the conveying speed can be adjusted by frequency conversion through the control box; Fixed plate 3: Fixed to the lower end of workbench 1, supporting the entire device and ensuring that the equipment is stable and does not shake during the testing process; First fixed bracket 4: The core support structure at the upper end of the workbench 1, with grooves 9 on the left and right sides, the first drive motor 10 and reinforcing ribs fixed at the upper end, and hydraulic rods 7 installed inside for fixing the detection components and the limiting steel structure; Second fixed bracket 5: Symmetrically arranged on both sides of the upper end of the workbench 1, fixed to the first fixed bracket 4 by connecting bracket 6, and internally installed with hydraulic rod 7, which works with the first fixed bracket 4 to achieve four-way limiting of the steel structure. Connecting bracket 6: Connects the first fixed bracket 4 and the second fixed bracket 5 to ensure the stability and synchronization of the four-way limiting structure; Hydraulic rod 7: Installed inside the first fixed bracket 4 and the second fixed bracket 5, with its output end connected to the steel structure limiting plate 8, driving the steel structure limiting plate 8 to press the steel structure, forming a four-way limiting; Steel structure limiting plate 8: connected to the output end of hydraulic rod 7 to ensure that the component does not shift during the testing process; First drive motor 10: fixed to the upper end of the first fixed bracket 4, with the output end connected to the movable frame 11, driving the movable frame to rotate horizontally, causing the detection component to cover the edge bolts of the steel structure, and the first limiting plate 12 can slide in the groove 9 to expand the detection range; The movable frame 11 is connected to the output end of the first drive motor 10, and four first limit plates 12 are fixed on both sides. When it rotates with the first drive motor 10, it drives the detection component to move in the horizontal direction. First limiting plate 12: fixed to movable frame 11, used to install second drive motor 13 and support first connecting rod 14 to rotate; The second drive motor 13 is fixed to the surface of the front first limiting plate 12, and its output end is connected to the first connecting rod 14, driving the connecting rod to rotate between the two first limiting plates 12. First connecting rod 14: connected to the output end of the second drive motor 13, rotatably connected to the first limiting plate 12 at both ends, and fixed to the second limiting plate 15 on the right side, transmitting adjustment power; Second limiting plate 15: There are two in total. They are fixed to the right side of the first connecting rod 14 and are used to install the fourth drive motor 16 and support the rotation of the second connecting rod 17. The fourth drive motor 16 is fixed to the surface of the second limiting plate 15 on the front side, and its output end is connected to the second connecting rod 17, which drives the connecting rod to rotate between the two second limiting plates 15. Second link 17: connected to the output end of the fourth drive motor 16, rotatably connected to the second limit plate 15 at both ends, and fixed to the third limit plate 18 at the lower end, transmitting adjustment power; Third limiting plate 18: fixed to the lower end of the second connecting rod 17, used to install the third drive motor 19, support the rotation of the detection box 20, and realize the adjustment of the detection component; The third drive motor 19 is fixed to the surface of the front third limit plate 18, and its output end is connected to the detection box 20. It drives the detection box to move and adjusts the position of the torque sensor 22 and the bolt. Detection box 20: connected to the output end of the third drive motor 19, and a micro drive motor 21 and torque sensor 22 are installed inside. After multi-axis adjustment, the bolt sleeve 23 is accurately fitted onto the bolt. Miniature drive motor 21: fixed inside the detection box 20, with its output end connected to torque sensor 22, applies torque at an increase of 5-10 N·m / s to drive bolt sleeve 23 to rotate; Torque sensor 22: installed inside the detection box 20, the detection shaft is connected to the output end of the micro drive motor 21, and the other end is clamped to the bolt sleeve 23; Its model number is: LTA-50NA; Bolt sleeve 23: It is snapped onto the end of the detection shaft of torque sensor 22. The specifications are replaceable (M6-M30) to adapt to different sizes of bolts, so as to realize torque application and detection. Control box: Installed at the lower end of workbench 1, it has a built-in frequency converter and data processor, adjusts the conveyor belt speed, receives torque sensor data and compares it with standard values, determines whether the bolt tightness is qualified, and supports data storage and abnormal alarm.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for testing the tightness of steel structure bolts used in building construction supervision, characterized in that: Includes a workbench (1), with a control box installed at the lower end of the workbench (1) and a first fixed bracket (4) fixedly connected to the upper end of the workbench (1). The detection component is set on the first fixed bracket (4). The detection component includes two first limiting plates (12). Both first limiting plates (12) are set on the right side of the first fixed bracket (4). A second drive motor (13) is fixedly connected to the surface of the front first limiting plate (12). A first connecting rod (14) is fixedly connected to the output end of the second drive motor (13). The first connecting rod (14) is rotatably connected to the two first limiting plates (12). Two second limiting plates (15) are fixedly connected to the right side of the first link (14). A fourth drive motor (16) is fixedly connected to the surface of the front second limiting plate (15). A second link (17) is fixedly connected to the output end of the fourth drive motor (16). The second link (17) is rotatably connected to the two second limiting plates (15). The lower end of the second link (17) is fixedly connected to two third limit plates (18). The surface of the front third limit plate (18) is fixedly connected to a third drive motor (19). The output end of the third drive motor (19) is fixedly connected to a detection box (20). The second link (17) and the two third limit plates (18) are rotatably connected to the detection box (20). A micro drive motor (21) is fixedly connected inside the detection box (20). A torque sensor (22) is installed inside the detection box (20). The detection shaft of the torque sensor (22) is fixedly connected to the output end of the micro drive motor (21). A bolt sleeve (23) is snapped onto the other end of the detection shaft of the torque sensor (22).

2. The steel structure bolt tightness testing device for building construction supervision according to claim 1, characterized in that: The number of detection components is two, which are symmetrically arranged on the left and right sides of the first fixed bracket (4).

3. The steel structure bolt tightness testing device for building construction supervision according to claim 1, characterized in that: The upper end of the first fixed bracket (4) is fixedly connected to the first drive motor (10), and the output end of the first drive motor (10) is fixedly connected to the movable frame (11). The four first limiting plates (12) are all fixedly connected to the movable frame (11). Two grooves (9) are provided on both the left and right sides of the first fixed bracket (4), and two reinforcing ribs are fixedly connected to the upper end of the first fixed bracket (4).

4. The steel structure bolt tightness testing device for building construction supervision according to claim 1, characterized in that: The surface of the workbench (1) is provided with an installation groove, and a steel structure conveyor belt (2) is installed inside the installation groove. Two fixing plates (3) are fixedly connected to the lower end of the workbench (1).

5. The steel structure bolt tightness testing device for building construction supervision according to claim 1, characterized in that: The first fixed bracket (4) is internally fixedly connected to a hydraulic rod (7), the output end of the hydraulic rod (7) is fixedly connected to a steel structure limiting plate (8), and the upper end of the workbench (1) is fixedly connected to a second fixed bracket (5). There are four second fixed supports (5) symmetrically arranged on both sides of the upper end of the workbench (1). Two connecting supports (6) are fixedly connected to both the left and right ends of the first fixed support (4). The four connecting supports (6) are fixedly connected to the corresponding second fixed supports (5).

6. The steel structure bolt tightness testing device for building construction supervision according to claim 5, characterized in that: Hydraulic rods (7) are also fixedly connected inside the four second fixed brackets (5), and steel structure limiting plates (8) are also fixedly connected to the output ends of the hydraulic rods (7) inside the four second fixed brackets (5).

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