A deflection detection device for steel structures

Abstract

The present application relates to the technical field of steel structure detection, and in particular to a deflection detection device for steel structures, which includes: a fixing mechanism for fixing on a steel structure, a detection member arranged on the fixing mechanism, and a data processor for receiving detection data of the detection member, and also includes: a moving mechanism and a positioning mechanism, wherein the moving mechanism includes: a guide rail arranged on the fixing mechanism and parallel to the detection surface of the steel structure; a slider sliding on the guide rail and connected to the detection member, used to drive the detection member to detect the deflection change of the steel structure; a moving assembly arranged on the fixing mechanism and connected to the slider, used to drive the slider to slide; the positioning mechanism includes: a positioning rod, which is provided with two and both are arranged on the fixing mechanism, located at both ends of the steel structure; a positioning block, which is arranged on the positioning rod and abuts against the surfaces to be detected at both ends of the steel structure, so that the guide rail is parallel to the detection surface formed at both ends of the steel structure. The present application has the effect of improving the accuracy of the deflection detection of the steel structure.

Description

Technical Field

[0001] The present application relates to the technical field of steel structure detection, and in particular to a deflection detection device for steel structures. Background Art

[0002] At present, with the rapid development of modern construction industry, steel structure is widely used in large projects such as high-rise buildings, bridges, gymnasiums, etc. due to its advantages of high strength, light weight and fast construction speed. However, after the steel structure is produced and formed, there will be a certain deflection change. When it is used and subjected to load, it will produce a certain deflection, that is, the displacement or deformation of the structure in the direction of force. If this deflection exceeds the design allowable range, it will directly affect the safety and stability of the structure. Therefore, it is particularly important to test the deflection of the steel structure before leaving the factory.

[0003] In the prior art, the support of steel structure is usually inspected by level measurement, laser rangefinder measurement and magnetic induction measuring instrument measurement to detect its deflection. However, for the initially processed steel structure, it is necessary to place it on a flat table to facilitate the accuracy of the detection data. However, when the steel structure has multiple bends, it is necessary to determine the starting point of the bend and then determine the detection point. If the detection point is determined incorrectly, the detection result will be inaccurate. Summary of the invention

[0004] In order to improve the accuracy of steel structure deflection detection, the present application provides a steel structure deflection detection device.

[0005] The present application provides a deflection detection device for a steel structure, which adopts the following technical solution:

[0006] A deflection detection device for a steel structure comprises: a fixing mechanism for fixing on the steel structure, a detection member arranged on the fixing mechanism, and a data processor for receiving detection data of the detection member, and also comprises: a moving mechanism and a positioning mechanism, wherein the moving mechanism comprises:

[0007] A guide rail, arranged on the fixing mechanism and parallel to the detection surface of the steel structure;

[0008] A slider, sliding on the guide rail, connected to the detection member, and used to drive the detection member to detect the deflection change of the steel structure;

[0009] A moving assembly, disposed on the fixing mechanism and connected to the slider, and used for driving the slider to slide;

[0010] The positioning mechanism comprises: two positioning rods, both of which are arranged on the fixing mechanism and located at both ends of the steel structure;

[0011] The positioning block is arranged on the positioning rod and abuts against the detection surfaces at both ends of the steel structure, so that the guide rail is parallel to the detection surfaces formed at both ends of the steel structure.

[0012] By adopting the above technical solution, the positioning block is firstly brought into contact with the surface to be inspected, the positioning rod is used to suspend the fixing mechanism, and then the fixing mechanism is connected to the steel structure, and then the inspection is carried out. By setting up the positioning mechanism, it is convenient to locate the inspection route of the inspection piece, and it is convenient to keep the movement route of the inspection piece parallel to the inspection surface determined at both ends of the steel structure, thereby improving the accuracy of the inspection result. The fixing mechanism is firmly mounted on the steel structure to ensure that it remains stable and motionless during the detection process. The guide rail is mounted on the fixing mechanism parallel to the detection surface of the steel structure, which is the basis for ensuring the accuracy of the measurement. The positioning mechanism is set at both ends of the guide rail. By adjusting these components, it can be ensured that the guide rail is accurately parallel to the detection surface of the steel structure. The detection part (which can be a displacement sensor, laser rangefinder, micrometer, dial indicator, etc.) is connected to the slider, and the slider can slide freely on the guide rail, thereby driving the detection part to move along the surface of the steel structure; the moving component is connected to the slider, which is responsible for driving the slider to slide on the guide rail to achieve the measurement of the detection part at different positions; the moving component is started, and the slider moves on the guide rail, driving the detection part to scan along the surface of the steel structure; the detection part records the deflection changes of the steel structure at different positions in real time, and these data can be used for subsequent analysis and evaluation; the collected deflection data can be processed and analyzed to evaluate the overall stability and safety of the steel structure.

[0013] By ensuring that the guide rail is parallel to the test surface of the steel structure and using high-precision test pieces and moving components, the equipment is able to achieve high-precision deflection measurements.

[0014] The free sliding movement of the slider on the guide rail enables the test piece to cover multiple locations on the surface of the steel structure, thus providing comprehensive deflection detection.

[0015] The design of the positioning mechanism and moving components enables the equipment to adapt to steel structures of different shapes and sizes. The installation, adjustment and operation of the equipment are relatively simple, reducing the requirements for operator skills. The automated drive and data acquisition functions reduce manual intervention and improve detection efficiency. The sturdy fixing mechanism and stable moving components ensure the reliability of the equipment during the detection process, and the real-time data acquisition and analysis functions help to promptly discover and deal with potential safety hazards.

[0016] Optionally, both ends of the guide rail are provided with a trigger mechanism, and the trigger mechanism includes:

[0017] An adjusting block is rotatably connected to the slider, and a rotation axis is parallel to a movement axis of the slider, and the detection member is arranged on the adjusting block;

[0018] The adjustment component is arranged on the guide rail and is detachably connected to the adjustment block, and is used for driving the adjustment block to slide.

[0019] By adopting the above technical solution, when the slider moves on the guide rail, the adjustment block moves linearly with the slider, and the adjustment block drives the detection part to move along the length direction of the steel structure, measures the detection surface, and transmits the measurement data to the data processor. After data processing and calculation, the current deflection of the steel structure is obtained.

[0020] When the slider moves to one end of the guide rail, it triggers the interaction with the adjustment component, and the adjustment component starts to work, driving the adjustment block to slide at a specific position on the guide rail, thereby adjusting the position or angle of the detection part and performing the deflection of another surface of the steel structure that needs to be detected.

[0021] Through a single fixation method, multi-faceted inspection of steel structures can be achieved without manual intervention, thereby improving inspection efficiency and reducing the impact of manual adjustments on inspection accuracy.

[0022] Optionally, a driving groove is provided on the adjustment block, the driving groove is an arc-shaped groove, a separation groove is provided on the adjustment block, the separation groove is connected with the driving groove, and the axis of the separation groove is parallel to the sliding direction of the slider, and the adjustment component includes:

[0023] A trigger rod, disposed on the guide rail and facing the adjustment block;

[0024] The shifting block is arranged on the trigger rod and can slide into the driving groove. As it slides in the driving groove, it drives the adjusting block to rotate and makes the shifting block slide into the separation groove.

[0025] By adopting the above technical solution, when the slider moves on the guide rail, the adjustment block moves therewith. If the slider moves near the trigger rod, the shift block begins to contact the edge of the drive groove. As the slider continues to move, the shift block gradually slides into the drive groove. Since the drive groove is an arc groove, the shift block will be subjected to a centripetal force when sliding in the groove, causing the adjustment block to start rotating around its rotation axis. This rotational action will change the position and / or angle of the detection member relative to the surface of the steel structure. When the shift block slides to a certain extent in the drive groove, it slides into the separation groove through the drive groove. The opening axis of the separation groove is parallel to the sliding direction of the slider, which means that when the shift block enters the separation groove, it will slide in this direction and thus separate from the adjustment block. After separation, the adjustment block (and the detection member) will maintain the position and angle when the shift block left, and as the slider slides, another surface of the steel structure will be detected until the slider moves again and triggers another adjustment process.

[0026] Optionally, the detection members are provided in two groups, and the two groups of detection members are arranged in parallel.

[0027] By adopting the above technical solution, if one set of test pieces fails or the data is abnormal, the other set of test pieces can still provide valid measurement data to ensure the continuity and reliability of the detection process; the data of the two sets of test pieces can complement and verify each other, providing richer information for data analysis, which helps to more accurately evaluate the overall performance and safety of the steel structure.

[0028] By comparing the data changes between the two groups of test pieces, potential problem areas or abnormal changes in the steel structure can be more easily identified.

[0029] Optionally, two pressure sensors are provided on the adjustment block, the pressure sensors correspond to the detection parts and can contact the steel structure, and a pressure processor is provided on the adjustment block, the pressure sensors are electrically connected to the pressure processor, and the pressure processor is electrically connected to the moving component.

[0030] By adopting the above technical solution, the pressure sensor can monitor the pressure or contact status of the steel structure surface in real time, and convert this information into electrical signals and transmit it to the pressure processor, and can assist in calculating the deflection of the steel structure. By observing the pressure values ​​of the two pressure sensors, it can be determined whether the two detection parts are in contact with the detection surface, so that the accuracy of the detection results can be maintained to ensure stable contact and accurate measurement between the detection parts and the steel structure; and it can determine whether the detection of the single-sided detection surface is completed through the change in the pressure value of the pressure sensor, and switch the sliding direction, thereby improving the level of intelligence.

[0031] Optionally, the trigger mechanism further includes a protection component, and the protection component includes:

[0032] The arc-shaped plate is arranged on the sliding block and contacts with the detection member, and is used for protecting the rotating detection member.

[0033] By adopting the above technical solution, when the adjusting block slides, the detection piece is driven to contact the arc plate, thereby reducing the contact between the detection piece and the corners of the steel structure to prevent damage.

[0034] Optionally, the fixing mechanism comprises:

[0035] A first magnetic block is connected to the positioning rod and the guide rail and is adsorbed to the steel structure;

[0036] A clamping block, disposed on the guide rail, slidably connected to the positioning rod, and close to or away from the first magnetic block;

[0037] The power assembly is arranged on the positioning rod and connected to the clamping block, and is used for driving the clamping block to approach or move away from the first magnetic block.

[0038] By adopting the above technical solution, when performing deflection detection, the first magnetic block is first brought into contact with the steel structure, and then the position of the first magnetic block is located by the positioning mechanism, and then the power component is used to drive the clamping block close to the first magnetic block so that the clamping block is pressed against the steel structure, and then the detection is performed. The setting of the first magnetic block facilitates the positioning of the positioning block, and then the position of the first magnetic block is reversely determined by the positioning block. The clamping method of the clamping block facilitates the improvement of the stability of the movement process of the detection piece, so that the accuracy of the detection result can be maintained.

[0039] Optionally, the fixing mechanism further comprises:

[0040] A top rod, fixedly connected to the first magnetic block,

[0041] A sliding rod, sliding on the top rod, capable of abutting against a surface of the steel structure away from the positioning block;

[0042] The adjusting component is arranged on the first magnetic block and connected with the sliding rod, and is used for driving the sliding rod to slide, so that the positioning block is pressed against the detection surface of the steel structure.

[0043] By adopting the above technical solution, when performing deflection detection, the positioning block and the first abutment block are first abutted against the steel structure respectively, and then the adjusting component is used to drive the sliding rod to slide, and the sliding rod is close to the side wall of the steel structure away from the positioning block until the sliding rod abuts the steel structure, driving the positioning block to press against the steel structure, and then the moving component is used to drive the clamping block close to the first magnetic block. Through the above settings, the guide rail is fixed, which is convenient for further improving the movement stability of the detection component.

[0044] Optionally, a sliding frame is slidably provided along the length direction of the positioning rod, the clamping block slides on the sliding frame and approaches or moves away from the first magnetic block, and the power assembly includes:

[0045] A fixed block is arranged on the positioning rod and is slidably connected with the clamping block. A clamping groove is provided on the sliding surface where the clamping block abuts against the fixed block. The clamping groove is inclined and an end away from the positioning block approaches the axis of the positioning rod.

[0046] The driving rod is arranged on the fixing block and slides in the clamping groove, and drives the clamping block to approach the first magnetic block when the clamping block moves away from the positioning block.

[0047] By adopting the above technical solution, when the sliding rod collides with the steel structure, it drives the clamping block away from the positioning block, and the driving rod drives the clamping block to approach the magnetic block through the clamping groove until the clamping block is pressed against the steel structure to complete the fixation of the guide rail. The structure of the movable component is simple, and the vertical and horizontal fixation of the guide rail is completed through the mutual cooperation between the two structures, thereby improving the convenience of detection, facilitating movement and adjustment, and reducing manual intervention.

[0048] In summary, the present application includes at least one of the following beneficial technical effects:

[0049] 1. By ensuring that the guide rail is parallel to the inspection surface of the steel structure and using high-precision inspection parts and moving components, the equipment can achieve high-precision deflection measurement; the free sliding of the slider on the guide rail enables the inspection parts to cover multiple positions on the surface of the steel structure, thereby providing comprehensive deflection detection; the design of the positioning mechanism and moving components enables the equipment to adapt to steel structures of different shapes and sizes, and the installation, adjustment and operation of the equipment are relatively simple, reducing the requirements for operator skills; the automated drive and data acquisition functions reduce manual intervention and improve detection efficiency; the sturdy fixing mechanism and stable moving components ensure the reliability of the equipment during the detection process, and the real-time data acquisition and analysis functions help to promptly discover and deal with potential safety hazards;

[0050] 2. The pressure sensor can monitor the pressure or contact state of the steel structure surface in real time, and convert this information into electrical signals to transmit to the pressure processor, and can assist in calculating the deflection of the steel structure. It can also determine whether the two detection parts are in contact with the detection surface by observing the pressure values ​​of the two pressure sensors, so that the accuracy of the detection results can be maintained to ensure stable contact and accurate measurement between the detection parts and the steel structure; and it can determine whether the detection of the single-side detection surface is completed through the change of the pressure value of the pressure sensor, and switch the sliding direction, thereby improving the level of intelligence;

[0051] 3. When the sliding rod contacts the steel structure, it drives the clamping block away from the positioning block, and the driving rod drives the clamping block to approach the magnetic block through the clamping groove until the clamping block contacts the steel structure to complete the fixation of the guide rail. The movable component has a simple structure, and the two structures cooperate with each other to complete the fixation of the guide rail in the vertical and horizontal directions, thereby improving the convenience of detection, facilitating movement and adjustment, and reducing manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the use of the deflection detection device in Example 1 of the present application;

[0053] Figure 2 is a schematic diagram of the overall structure of the deflection detection device in Example 1 of the present application;

[0054] Figure 3 is a cross-sectional view of the extended rail in Example 1 of the present application;

[0055] Figure 4 yes Figure 3 A magnified view of middle;

[0056] Figure 5 is a side view of the deflection detection device in Example 1 of the present application when in use;

[0057] Figure 6 is a position relationship diagram of the clamping block and the first magnetic block in Example 1 of the present application;

[0058] Figure 7 yes Figure 3 Enlarged view of middle B;

[0059] Figure 8 is a schematic diagram of the installation position of the fixing block in Example 1 of the present application;

[0060] Fig. 9 It is a structural display diagram of the power assembly in Example 1 of the present application;

[0061] Fig.10 This is a structural display diagram of the support assembly in Example 2 of the present application.

[0062] Reference numerals: 100, fixing mechanism; 110, first magnetic block; 120, clamping block; 121, pressing groove; 130, power assembly; 131, fixing block; 132, driving rod; 140, ejector rod; 150, sliding rod; 160, adjusting assembly; 170, sliding frame; 180, supporting assembly; 181, supporting rod; 182, transmission rod; 183, sliding column; 200, detection member; 300, moving mechanism; 310, guide rail; 320, slider; 330, moving assembly; 331, moving motor; 332, moving motor; 333, moving assembly; 334, moving motor; 335, moving assembly; 336, moving motor; 337, moving motor; 338, moving assembly; 339, moving motor; 340, moving assembly; 341, moving motor; 342, moving assembly; 343, moving motor; 344, moving assembly; 345, moving assembly; 346, moving motor; 347, moving assembly; 348, moving motor; 349, moving assembly; 350, moving assembly; 351, moving motor; 352, moving assembly; 353, moving assembly; 354, moving motor; 355, moving assembly; 356, moving assembly; 357, moving motor; 358, moving assembly; 359, moving assembly; 360, moving assembly; 361, moving motor; 362, moving assembly; 363, moving assembly; 364, moving assembly; 365, moving assembly; 366, moving assembly; 367, moving assembly; 368, moving assembly; 369, moving assembly; 370, moving assembly; 371, moving motor; 372, moving assembly; 373, moving assembly 2. Moving gear; 333. Fixed rack; 340. Extension rail; 350. Tension spring; 400. Positioning mechanism; 410. Positioning rod; 420. Positioning block; 500. Trigger mechanism; 510. Adjustment block; 511. Driving slot; 512. Separation slot; 513. Locking slot; 520. Adjustment assembly; 521. Trigger rod; 522. Dial block; 530. Protection assembly; 531. Arc plate; 532. Guide plate; 540. Support block; 550. Locking assembly; 551. Locking rod; 552. Locking spring. DETAILED DESCRIPTION

[0063] The following combination Figures 1 to 10 This application is described in further detail.

[0064] This embodiment discloses a deflection detection device for a steel structure.

[0065] Example 1: Reference Figure 1The deflection detection device of the steel structure includes: a fixing mechanism 100 for connecting with the steel structure, a positioning mechanism 400 arranged on the fixing mechanism 100 for positioning, a moving mechanism 300 arranged on the fixing mechanism 100 for moving along the length direction of the steel structure, a detection member 200 arranged on the moving mechanism 300 and moving with the moving mechanism 300 and performing deflection detection on the steel structure, and a data processor arranged on the fixing mechanism 100 and used for receiving detection data of the detection member 200. When performing the deflection detection of the steel structure, the fixing mechanism 100 and the positioning mechanism 400 are firstly brought into contact with the steel structure respectively, the positioning mechanism 400 is used to locate the relative positions between the fixing mechanism 100 and the detection member 200 and the steel structure, and then the detection member 200 is driven by the moving mechanism 300 for detection, and the deflection is calculated by the data processor.

[0066] Reference Figure 1 , Figure 2 and Figure 3 The moving mechanism 300 includes a guide rail 310, and both ends of the guide rail 310 are respectively slidably connected with an extension rail 340, the extension rail 340 is coaxially arranged with the guide rail 310, and a sliding cavity is formed at one end of the extension rail 340, and the end of the guide rail 310 slides in the sliding cavity. A tension spring 350 is arranged in the sliding cavity, and one end of the tension spring 350 is fixedly connected to the extension rail 340, and the other end of the tension spring 350 is connected to the guide rail 310, and pulls the extension rail 340 close to the middle of the guide rail 310; A slider 320 is slidably connected to the guide rail 310, and the slider 320 can slide on the guide rail 310 to the extension rail 340; a moving component 330 is provided on the guide rail 310, and the moving component 330 is connected to the slider 320 and drives the slider 320 to slide; a trigger mechanism 500 is provided on the slider 320, and the detection member 200 is set on the slider 320 through the trigger mechanism 500, and the detection member 200 contacts the steel structure and performs deflection detection on the steel structure as the slider 320 slides.

[0067] Reference Figure 3 and Figure 4 A mounting cavity is provided inside the slider 320, and the moving assembly 330 includes a moving motor 331 fixedly connected to the inner wall of the mounting cavity. The output shaft key of the moving motor 331 is connected to a moving gear 332. The guide rail 310 has a mounting groove along its length direction, and a fixed rack 333 is fixedly connected in the mounting groove, and the fixed rack 333 is meshed with the moving gear 332.

[0068] Reference Figure 3 , Figure 5 and Figure 6The trigger mechanism 500 includes a support block 540 fixedly connected to the slider 320, and an adjustment block 510 is rotatably connected to the support block 540. The rotation and sliding axis of the adjustment block 510 is parallel to the axis of the guide rail 310. The detection member 200 can be provided with two groups, and both are provided on the adjustment block 510. The detection member 200 can be a micrometer, a distance sensor, etc. The present embodiment is preferably an intelligent micrometer, and the end of the measuring end of the intelligent micrometer is spherical; in order to facilitate the sliding and rotation of the adjustment block 510, a driving groove 511 is provided on the adjustment block 510. The driving groove 511 is an arc groove and is formed by rotating around the rotation axis of the adjustment block 510 as the center, and the adjustment block 51 0 is provided with a separation groove 512, the opening axis of the separation groove 512 is parallel to the rotation axis of the adjustment block 510 and the sliding direction of the slider 320, and is connected to one end of the driving groove 511; an adjustment component 520 is provided on the guide rail 310, the adjustment component 520 includes a trigger rod 521 fixedly connected to the guide rail 310, and the trigger rod 521 faces the adjustment block 510, and a shift block 522 is fixedly connected to the trigger rod 521, the shift block 522 can slide into the driving groove 511, and as it slides in the driving groove 511, the adjustment block 510 rotates, and during the rotation of the adjustment block 510, the shift block 522 slides into the separation groove 512.

[0069] In other embodiments, two groups of trigger mechanisms 500 may be provided, corresponding to the two ends of the guide rail 310 respectively.

[0070] Two pressure sensors are detachably connected to the adjustment block 510, and the two pressure sensors correspond one to one with the two detection parts 200. The pressure sensors can contact the steel structure. A pressure processor is provided on the adjustment block 510. The pressure processor is electrically connected to the pressure sensors by signals, and the pressure processor is electrically connected to the data processor by signals, and the data processor is electrically connected to the mobile motor 331 by signals, so as to control the phase cutting of the mobile motor 331.

[0071] In order to reduce damage to the detection part 200, a protective component 530 is provided on the support block 540. The protective component 530 includes a guide plate 532 fixedly connected to the measuring end of the smart micrometer. The cross-section of the guide plate 532 is arc-shaped, and the two ends of the rotation direction are bent toward the dial of the smart micrometer. An arc plate 531 is fixedly connected to the support block 540. The arc plate 531 is located on one side of the guide plate 532 and can abut against the guide plate 532. When the guide plate 532 rotates with the smart micrometer, the guide plate 532 abuts against the arc plate 531 and squeezes the measuring end of the smart micrometer. A clearance groove is opened on the arc plate 531, and the guide plate 532 can pass through the clearance groove. When the smart micrometer rotates to the side of the steel structure or rotates to cross the corner of the steel structure, the guide plate 532 passes through the clearance groove, so that the end of the smart micrometer abuts against the side of the steel structure.

[0072] Reference Figure 3 and Figure 7 In order to facilitate fixing the position of the adjustment block 510, the support block 540 is provided with two locking holes, and two groups of locking assemblies 550 are arranged on the support block 540. The locking assembly 550 includes a locking rod 551 slidably connected to the locking hole of the support block 540. Two locking grooves 513 are correspondingly provided on the adjustment block 510. As the adjustment block 510 rotates, one of the locking rods 551 is inserted into one of the locking grooves 513. One end of the locking rod 551 inserted into the locking groove 513 is spherical. The locking hole is fixedly connected with a locking spring 552. The locking spring 552 is connected to the locking rod 551 and pushes the locking rod 551 close to the adjustment block 510.

[0073] The positioning mechanism 400 includes two positioning rods 410, which are respectively located at the two ends of the guide rail 310 and connected to the fixing mechanism 100. A positioning block 420 is fixedly connected to the positioning rod 410. The positioning block 420 is magnetic and has a flat surface formed on one side, which can be fitted and abutted against the detection end faces at both ends of the steel structure.

[0074] Reference Figure 3 , Figure 5 and Figure 8 The fixing mechanism 100 includes a sliding frame 170, which is sleeved on the positioning rod 410 and slides along the length direction of the positioning rod 410. The sliding frame 170 is fixedly connected to the extension rail 340. The sliding frame 170 is fixedly connected with a first magnetic block 110, and the first magnetic block 110 can be adsorbed on the side wall of the steel structure; the sliding frame 170 is slidably connected with a clamping block 120, and the clamping block 120 can be close to or away from the first magnetic block 110. A moving component 330 is provided on the positioning rod 410, and the moving component 330 is used to drive the clamping block 120 to approach or move away from the first magnetic block 110.

[0075] The fixing mechanism 100 also includes a top rod 140 fixedly connected to the sliding frame 170, the top rod 140 faces the positioning block 420, and a sliding hole is opened on the top rod 140. A sliding rod 150 is slidably connected in the sliding hole. The sliding rod 150 can abut against the side wall of the steel structure away from the positioning block 420. As the sliding rod 150 slides, the positioning block 420 can be driven to press against the steel structure; an adjustment component 160 is arranged on the top rod 140, and the adjustment component 160 is connected to the sliding rod 150 and drives the sliding rod 150 to slide.

[0076] The adjustment assembly 160 includes a pneumatic cylinder or an electric push cylinder fixedly connected to the push rod 140. In other embodiments, linear drive components such as motor gear racks and motor screws can also be used. This embodiment is preferably an electric push cylinder, and the piston rod of the electric push cylinder is connected to the sliding rod 150 and pushes the sliding rod 150 to slide.

[0077] Reference Figure 8 and Fig. 9 The power assembly 130 includes a fixed block 131 fixedly connected to the positioning rod 410, the clamping block 120 is slidably connected to the fixed block 131, and a clamping groove 121 is provided on the surface of the clamping block 120 that abuts against the fixed block 131. The clamping groove 121 is inclined, and the end away from the positioning block 420 approaches the direction close to the axis of the positioning rod 410. A driving rod 132 is fixedly connected to the fixed block 131, and the driving rod 132 is located in the clamping groove 121. As the sliding frame 170 moves away from the positioning block 420, the driving rod 132 and the clamping groove 121 slide relative to each other, thereby making the clamping block 120 approach the first magnetic block 110.

[0078] In order to facilitate the steel structure to be placed in the gap between the clamping block 120 and the first magnetic block 110 , a compression spring is provided on the positioning rod 410 . The compression spring is connected to the sliding frame 170 and drives the sliding frame 170 to approach the positioning block 420 .

[0079] The implementation principle of Example 1 of the present application is as follows: when performing a deflection test on a steel structure, firstly, the steel structure is taken out and debris is cleaned from the surface, and then the first magnetic block 110 and the positioning block 420 are brought close to the steel structure, so that the positioning block 420 is first fitted with the detection end face of the steel structure, and the first magnetic block 110 is close to the steel structure; then, the electric push cylinder is started, and the electric push cylinder drives the sliding rod 150 to extend, and the sliding rod 150 abuts against the steel structure, so that the sliding frame 170 is away from the positioning block 420, and drives the positioning block 420 to abut against the steel structure; as the sliding rod 150 extends, the sliding frame 170 slides along the positioning rod 410, and the driving rod 132 slides along the clamping groove 121, so that the clamping block 120 is close to the first magnetic block 110, until the clamping block 120 and the first magnetic block 110 jointly clamp the steel structure.

[0080] Then, the moving motor 331 is started, and the moving motor 331 drives the moving gear 332 to rotate, and the moving gear 332 slides along the fixed rack 333, so that the slider 320 slides along the guide rail 310, and the slider 320 drives the support block 540 and the adjustment block 510 to slide, and the adjustment block 510 drives the two sets of detection parts 200 to perform deflection detection on the steel structure, and the pressure sensor performs auxiliary detection on the deflection of the steel structure; when the slider 320 moves to one end of the guide rail 310, the shifting block 522 on the trigger rod 521 slides into the driving groove 511, and the sliding of the slider 320, the shifting block 522 and the driving groove 511 cooperate The adjusting block 510 is driven to rotate, and the adjusting block 510 overcomes the locking force of the locking rod 551 and the locking spring 552, driving the detection part 200 and the pressure sensor to rotate, and making the arc plate 531 and the guide plate 532 abut, so that the detection part 200 retracts, reducing the hard contact with the corners of the steel structure and causing damage, until the other locking rod 551 is inserted into the corresponding locking groove 513. At this time, the two pressure sensors are balanced in force and transmit the pressure signal to the data processor and the pressure processor. The data processor controls the moving motor 331 to cut the phase, so that the slider 320 moves in the opposite direction to detect the other side of the steel structure.

[0081] Example 2: Reference Fig.10 The difference between this embodiment and embodiment 1 is that, in order to reduce the friction of the first magnetic block 110, the first magnetic block 110 slides on the sliding frame 170 in the direction close to the clamping block 120, and a support assembly 180 is provided on the sliding frame 170. The support assembly 180 includes a support rod 181 slidably connected to the sliding frame 170, and the end of the support rod 181 is rotatably connected to a ball or a roller; a transmission rod 182 is rotatably connected to the sliding frame 170, and both ends of the transmission rod 182 are provided with waist-shaped grooves, which are opened along the length direction of the transmission rod 182, and the waist-shaped grooves rotate and The sliding connection is provided with a sliding column 183, one of the sliding columns 183 is fixedly connected to one end of the support rod 181 away from the ball, and the other sliding column 183 is fixedly connected to the first magnetic block 110. The support rod 181 protrudes from the end surface of the first magnetic block 110 close to the clamping block 120. As the support rod 181 moves away from the clamping block 120, the first magnetic block 110 approaches the clamping block 120. In order to facilitate the support rod 181 to protrude from the first magnetic block 110, a return spring is fixedly connected to the sliding frame 170. The return spring is connected to the support rod 181 and is used to push the support rod 181 close to the clamping block 120.

[0082] When the first magnetic block 110 approaches the steel structure, the ball at the end of the support rod 181 abuts against the steel structure; then the electric push cylinder is started, and the electric push cylinder drives the sliding rod 150 to extend, and the sliding rod 150 abuts against the steel structure, so that the sliding frame 170 moves away from the positioning block 420, and drives the positioning block 420 to press against the steel structure; as the sliding rod 150 extends, the sliding frame 170 slides along the positioning rod 410, and the driving rod 132 slides along the clamping groove 121, so that the clamping block 120 approaches the first magnetic block 110, and at the same time compresses the ball, driving the support rod 181 away from the clamping block 120, and the support rod 181 drives the first magnetic block 110 to approach the steel structure and adsorb on the steel structure through the transmission rod 182 and the sliding column 183, until the clamping block 120 and the first magnetic block 110 clamp the steel structure together.

[0083] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A deflection detection device for a steel structure, comprising: A fixing mechanism (100) for fixing on a steel structure, a detection member (200) arranged on the fixing mechanism (100), and a data processor for receiving detection data of the detection member (200), characterized in that it also includes: a moving mechanism (300) and a positioning mechanism (400), wherein the moving mechanism (300) includes: A guide rail (310) is arranged on the fixing mechanism (100) and is parallel to a detection surface of the steel structure; A slider (320) slides on the guide rail (310) and is connected to the detection member (200), and is used to drive the detection member (200) to detect a deflection change of the steel structure; A moving component (330) is arranged on the fixing mechanism (100), connected to the slider (320), and used to drive the slider (320) to slide; The positioning mechanism (400) comprises: two positioning rods (410), both of which are arranged on the fixing mechanism (100) and located at two ends of the steel structure; A positioning block (420) is arranged on the positioning rod (410) and abuts against the surfaces to be detected at both ends of the steel structure, so that the guide rail (310) is parallel to the detection surfaces formed at both ends of the steel structure; The fixing mechanism (100) comprises: A first magnetic block (110) connected to the positioning rod (410) and the guide rail (310), and adsorbed onto the steel structure; A clamping block (120) is disposed on the guide rail (310) and is slidably connected to the positioning rod (410) to move closer to or farther away from the first magnetic block (110); A power assembly (130), disposed on the positioning rod (410), connected to the clamping block (120), and used for driving the clamping block (120) to move closer to or away from the first magnetic block (110); The fixing mechanism (100) further comprises: A top rod (140) is fixedly connected to the first magnetic block (110). A sliding rod (150) slides on the top rod (140) and is capable of abutting against a surface of the steel structure away from the positioning block (420); an adjustment component (160), arranged on the first magnetic block (110), connected to the sliding rod (150), and used for driving the sliding rod (150) to slide, so that the positioning block (420) is pressed against the detection surface of the steel structure; A sliding frame (170) slides along the length direction of the positioning rod (410), the clamping block (120) slides on the sliding frame (170) and approaches or moves away from the first magnetic block (110), and the power assembly (130) comprises: A fixed block (131) is arranged on the positioning rod (410) and is slidably connected to the clamping block (120); a clamping groove (121) is provided on the sliding surface where the clamping block (120) abuts against the fixed block (131); the clamping groove (121) is inclined, and an end away from the positioning block (420) approaches the axis of the positioning rod (410); A driving rod (132) is disposed on the fixing block (131) and slides in the clamping groove (121), and drives the clamping block (120) to approach the first magnetic block (110) when the clamping block (120) moves away from the positioning block (420).

2. The deflection detection device for steel structures according to claim 1, characterized in that: Both ends of the guide rail (310) are provided with a trigger mechanism (500), and the trigger mechanism (500) comprises: an adjusting block (510) rotatably connected to the slider (320), with a rotation axis parallel to a movement axis of the slider (320), and the detecting member (200) is arranged on the adjusting block (510); An adjustment component (520) is disposed on the guide rail (310) and is detachably connected to the adjustment block (510) and is used to drive the adjustment block (510) to slide.

3. The deflection detection device for steel structures according to claim 2, characterized in that: The adjusting block (510) is provided with a driving groove (511), the driving groove (511) being an arc-shaped groove, the adjusting block (510) is provided with a separation groove (512), the separation groove (512) being in communication with the driving groove (511), and the axis of the separation groove (512) being parallel to the sliding direction of the slider (320), the adjusting component (520) comprising: A trigger rod (521) is disposed on the guide rail (310) and faces the adjustment block (510); The shifting block (522) is arranged on the trigger rod (521) and can slide into the driving groove (511). As it slides in the driving groove (511), it drives the adjusting block (510) to rotate and causes the shifting block (522) to slide into the separation groove (512).

4. The deflection detection device for steel structures according to claim 2 or 3, characterized in that: The detection members (200) are provided in two groups, and the two groups of detection members (200) are arranged in parallel.

5. The deflection detection device for steel structures according to claim 4, characterized in that: The adjustment block (510) is provided with two pressure sensors, the pressure sensors correspond to the detection member (200) and are capable of contacting the steel structure, and the adjustment block (510) is provided with a pressure processor, the pressure sensors are electrically connected to the pressure processor, and the pressure processor is electrically connected to the moving component (330).

6. The deflection detection device for steel structures according to claim 3, characterized in that: The trigger mechanism (500) further comprises a protection component (530), wherein the protection component (530) comprises: The arc-shaped plate (531) is arranged on the sliding block (320) and is in contact with the detection member (200), and is used to protect the detection member (200) in rotation.

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