Stable detection equipment and detection method for steel structure building

Abstract

The invention relates to the technical field of stable detection for steel structure buildings, and discloses stable detection equipment for steel structure buildings and a detection method.The stable detection equipment comprises a machine body and an adjusting mechanism arranged on the front face of the machine body, a detection mechanism is arranged on the front face of the adjusting mechanism, and a cleaning mechanism is arranged on the outer side of the detection mechanism; through arrangement of an adjusting mechanism and a detection mechanism, a first sliding frame slides in a first sliding groove and cooperates with displacement of a second sliding frame in a second sliding groove, the position of the detection mechanism can be changed, it is guaranteed that detection data are comprehensive and reliable, a strong spring shrinks to enable a clamping frame to lock the first sliding frame, and a limiting bolt is tightened to a limiting piece and abuts against the surface of a machine body; the clamping plate slides to the bottom along the outer wall of the threaded rod to be attached to the surface of the laser displacement sensor, the laser displacement sensor is doubly stabilized through screwing of the fastening nut and adsorption of the magnet, and the sensor can accurately detect the displacement condition of a steel structure under the influence of load or temperature change and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of stable detection for steel structure buildings, and in particular to stable detection equipment and a detection method for steel structure buildings. Background Art

[0002] Steel structure building is a kind of building structure form that uses steel as the main building material. Steel structure building refers to the building whose main load-bearing components (such as beams, columns, trusses, etc.) are all or partly made of steel. It is a modern building structure system. Steel is the main building material, which is combined together by welding, bolting or riveting to form a structure that can withstand various loads.

[0003] In the prior art, steel structures will move under load or under the influence of factors such as temperature changes, and need to be detected and recorded. Most of the existing detection equipment relies on a tripod to fix the detection equipment, which is inconvenient to move back and forth. At the same time, when detecting in one position for a long time, dust is easily attached to the transmitting end of the detection equipment, thereby affecting the detection results. For this reason, we propose a stable detection equipment and detection method for steel structure buildings. Summary of the invention

[0004] The purpose of the present invention is to provide a stable detection device and detection method for steel structure buildings, so as to solve the problem that most of the existing detection equipment proposed in the above background technology relies on a tripod to fix the detection equipment, which is inconvenient to move back and forth and adjust. At the same time, when detecting at one position for a long time, the transmitting end of the detection equipment is prone to dust accumulation, thereby affecting the detection results.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A stable detection device for steel structure buildings, comprising a body and an adjustment mechanism arranged on the front side thereof, a detection mechanism being arranged on the front side of the adjustment mechanism, and a cleaning mechanism being arranged on the outside of the detection mechanism;

[0006] The adjustment mechanism includes a mounting frame, the mounting frame is connected to a fixing bolt through a plug-in block, the mounting frame is connected to a first sliding frame through a first sliding groove, the first sliding frame is connected to a limiting bolt through a limiting member, the first sliding frame is connected to a strong spring and a clamping frame through the mounting groove, and the first sliding frame is connected to a second sliding frame through a second sliding groove;

[0007] The detection mechanism includes a mounting frame and a laser displacement sensor, wherein the mounting frame is connected to a clamping plate and a fastening nut via a threaded rod, and a magnet is fixedly mounted on the back of the clamping plate;

[0008] The cleaning mechanism comprises a connecting plate and a fixed hanger, wherein the connecting plate is connected with a rotating disk and a fixed shaft via a motor, the fixed hanger is connected with a rotating member via a sliding rod, and the sliding rod is connected with a cleaning brush via a scraper.

[0009] As a further solution of the present invention, a solar panel is fixedly mounted on the upper end of the body, and a push handle is fixedly mounted on the left side thereof. Slots are provided on the front of the body near the four corners, and threaded holes penetrate through both sides of the slots.

[0010] As a further solution of the present invention, the plug-in block is fixedly installed on the back side of the mounting frame near the four corners, the fixing bolt is threadedly connected to the threaded hole and the inside of the plug-in block, the first sliding groove runs through both sides of the mounting frame, and the first sliding frame is slidably connected to the inside of the first sliding groove.

[0011] As a further solution of the present invention, the limit member is fixedly installed on the outside of the first sliding frame, the limit bolt is threadedly connected to the inside of the limit member, the mounting groove is opened on both sides of the first sliding frame, one end of the strong spring is fixedly installed inside the mounting groove, the clamping frame is fixedly installed on the other end of the strong spring, the second sliding groove is opened inside the first sliding frame, and the second sliding frame is slidably connected to the inside of the second sliding groove.

[0012] As a further solution of the present invention, the mounting frame is fixedly mounted on the front side of the second sliding frame, and the laser displacement sensor is arranged inside the mounting frame.

[0013] As a further solution of the present invention, the threaded rod is fixedly mounted on the upper end of the mounting frame, the clamping plate is slidably connected to the outer wall of the threaded rod, the fastening nut is threadedly connected to the outer wall of the threaded rod, and the lower surface of the magnet is against the upper surface of the first sliding frame.

[0014] As a further solution of the present invention, the connecting plate is fixedly mounted on the left side of the mounting frame, the motor is fixedly mounted on the front side of the connecting plate, the rotating disk is fixedly mounted on the output shaft of the motor, and the fixed shaft is fixedly mounted on the surface of the rotating disk near the edge.

[0015] As a further solution of the present invention, the fixed hanger is fixedly installed on the lower end of the mounting frame, the sliding rod is slidably connected to the inside of the fixed hanger, the rotating member is fixedly installed on the left end of the sliding rod, the fixed shaft is rotatably connected to the inside of the rotating member, the scraper is fixedly installed on the front side of the sliding rod, and the cleaning brush is fixedly installed on the back side of the scraper, and the cleaning brush is against the surface of the laser displacement sensor.

[0016] In addition, the present invention also provides a detection method for a stable detection device for a steel structure building, comprising the following steps:

[0017] Step 1: First, transport the equipment to the detection point through the universal wheel at the lower end of the machine body, store and provide electricity through the solar panel, and adjust according to the position of the steel structure to be detected. First, slide the clamping plate along the outer wall of the threaded rod so that its bottom is against the surface of the laser displacement sensor, tighten the fastening nut, pull the clamping frame, and change the position of the detection mechanism by sliding the first sliding frame in the first sliding groove and cooperating with the sliding of the second sliding frame in the second sliding groove. Then release the clamping frame, and the strong spring contracts so that the clamping frame fixes the first sliding frame. Then tighten the limit bolt in the limit piece and tightly against the surface of the machine body. The magnet is magnetically attracted to the first sliding frame, so that the laser displacement sensor is firmly fixed and will not move.

[0018] Step 2: When used for a long time, the start time of the motor is set through the motor timer to drive the fixed shaft on the rotating disk to rotate, so that the fixed shaft rotates in the rotating part, driving the slide rod to slide back and forth along the fixed hanger, and then the cleaning brush on the scraper wipes back and forth against the transmitting end and the receiving end of the laser displacement sensor to wipe off the dust and stains on its surface. The laser displacement sensor emits a laser beam to the reflective target on the surface of the steel structure, and then receives the reflected light. According to the principle of laser round-trip time or phase change, the distance change between the steel structure surface and the sensor is calculated to obtain the displacement information.

[0019] In step one, the specific calculation method of the laser displacement sensor is optimized by an intelligent algorithm as follows:

[0020] Principle 1. Calculation based on time difference (laser pulse flight time method)

[0021] For the laser pulse flight time method, the basic principle is that the speed of light in a vacuum is C = 299792458 m / s (the speed in air is approximately this value). Let the round-trip time from laser emission to reception be t, and the distance between the sensor and the target be d. The calculation formula is:

[0022] Principle 2: Calculation based on phase difference (laser phase method)

[0023] Assume the wavelength of the laser is γ, and the phase difference between the emitted light and the received light is Then the distance d can be calculated as

[0024]

[0025] Technical effects and advantages of the present invention:

[0026] 1. Through the adjustment mechanism and the detection mechanism, the sliding of the first sliding frame in the first sliding groove and the displacement of the second sliding frame in the second sliding groove can change the position of the detection mechanism, ensuring the comprehensiveness and reliability of the detection data. Through the powerful contraction of the strong spring, the clamping frame locks the first sliding frame, and the limit bolt is accurately tightened in the limiter, and it is closely attached to the surface of the machine body, eliminating the shaking and displacement interference that may occur during the detection process. The clamping plate can slide along the outer wall of the threaded rod, and its bottom is attached to the surface of the laser displacement sensor. Through the tightening operation of the fastening nut and the adsorption effect of the magnet, the laser displacement sensor is double-stabilized. The laser displacement sensor can accurately capture the displacement of the steel structure under the action of load or under the influence of factors such as temperature changes;

[0027] 2. Through the cleaning mechanism, after the motor is started, it will drive the fixed shaft on the rotating disk to rotate steadily. Since the fixed shaft is inside the rotating part, the rotation of the fixed shaft will be converted into the linear motion of the slide bar, so that the slide bar can slide back and forth smoothly along the fixed hanger. The reciprocating motion of the slide bar will be transmitted to the scraper connected to it. The cleaning brush installed on the scraper will then regularly wipe the transmitting end and the receiving end of the laser displacement sensor back and forth to clean the dust and stains attached to the surface of the transmitting end and the receiving end of the laser displacement sensor. The accuracy of the laser displacement sensor detection data will be greatly improved, thereby providing more reliable data support for the entire steel structure detection work, ensuring the accuracy and effectiveness of the detection results, and helping to more accurately evaluate the various performance indicators of steel structure buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a three-dimensional structural schematic diagram of a part of the structure of the present invention;

[0030] Figure 3 It is one of the partial structural schematic diagrams of the regulating mechanism of the present invention;

[0031] Figure 4 The second schematic diagram of the partial structure of the regulating mechanism of the present invention;

[0032] Figure 5 For the present invention Figure 4 One of the partial structural diagrams;

[0033] Figure 6 For the present invention Figure 4 Partial structural diagram 2;

[0034] Figure 7It is a three-dimensional structural schematic diagram of the detection mechanism and the cleaning mechanism of the present invention;

[0035] Figure 8 An exploded view of the detection mechanism of the present invention;

[0036] Fig. 9 It is a three-dimensional structural schematic diagram of the cleaning mechanism of the present invention;

[0037] Fig.10 It is a partial structural schematic diagram of the cleaning mechanism of the present invention.

[0038] In the figure: 1, body; 2, solar panel; 3, push handle; 4, slot; 5, threaded hole; 6, adjustment mechanism; 601, mounting frame; 602, plug-in block; 603, fixing bolt; 604, first sliding groove; 605, first sliding frame; 606, limit member; 607, limit bolt; 608, mounting groove; 609, strong spring; 610, clamping frame; 611, second sliding groove; 612, second sliding frame; 7, detection mechanism; 701, mounting frame; 702, laser displacement sensor; 703, threaded rod; 704, fastening nut; 705, clamping plate; 706, magnet; 8, cleaning mechanism; 801, connecting plate; 802, motor; 803, rotating disk; 804, fixed shaft; 805, fixed hanger; 806, sliding rod; 807, rotating member; 808, scraper; 809, cleaning brush. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiment 1:

[0041] Please see attached Figure 1 - Attachment Figure 8 , a stable detection device and detection method for steel structure building, a body 1 and an adjustment mechanism 6 arranged on the front thereof, and a detection mechanism 7 is arranged on the front of the adjustment mechanism 6;

[0042] The adjustment mechanism 6 includes a mounting frame 601, the mounting frame 601 is connected to a fixing bolt 603 through a plug-in block 602, the mounting frame 601 is connected to a first sliding frame 605 through a first sliding groove 604, the first sliding frame 605 is connected to a limiting bolt 607 through a limiting member 606, the first sliding frame 605 is connected to a strong spring 609 and a clamping frame 610 through a mounting groove 608, and the first sliding frame 605 is connected to a second sliding frame 612 through a second sliding groove 611;

[0043] The detection mechanism 7 includes a mounting frame 701 and a laser displacement sensor 702. The mounting frame 701 is connected to a clamping plate 705 and a fastening nut 704 through a threaded rod 703. A magnet 706 is fixedly installed on the back of the clamping plate 705. A solar panel 2 is fixedly installed on the upper end of the body 1, and a push handle 3 is fixedly installed on the left side. Slots 4 are provided on the front of the body 1 near the four corners, and threaded holes 5 are penetrated on both sides of the slots 4. The plug-in block 602 is fixedly installed on the back of the mounting frame 601 near the four corners. The fixing bolts 603 are threadedly connected to the threaded holes 5 and the inside of the plug-in block 602. The first sliding groove 604 penetrates both sides of the mounting frame 601. The first sliding frame 605 is slidably connected to the inside of the first sliding groove 604. The limiter 606 is fixedly installed on the outside of the first sliding frame 605. The limiter bolt 606 07 is threadedly connected to the inside of the limit piece 606, the mounting grooves 608 are opened on both sides of the first sliding frame 605, one end of the strong spring 609 is fixedly installed in the inside of the mounting groove 608, the clamping frame 610 is fixedly installed on the other end of the strong spring 609, the second sliding groove 611 is opened in the inside of the first sliding frame 605, the second sliding frame 612 is slidably connected to the inside of the second sliding groove 611, the mounting frame 701 is fixedly installed on the front of the second sliding frame 612, the laser displacement sensor 702 is arranged in the inside of the mounting frame 701, the threaded rod 703 is fixedly installed on the upper end of the mounting frame 701, the clamping plate 705 is slidably connected to the outer wall of the threaded rod 703, the fastening nut 704 is threadedly connected to the outer wall of the threaded rod 703, and the lower surface of the magnet 706 is against the upper surface of the first sliding frame 605.

[0044] The upper and lower ends of the clamping frame 610 are against the upper and lower ends of the first sliding frame 605, and its inner side surface is against the outer side surface of the installation frame 601. With the help of the strong spring 609, the first sliding frame 605 can be stabilized in the first sliding groove 604. The inner part of the limiting member 606 has a threaded groove, and the limiting bolt 607 is threadedly connected in the threaded groove. The bottom of the limiting bolt will be tightly against the surface of the body 1, thereby reinforcing the first sliding frame 605 for a second time. The front of the laser displacement sensor 702 is provided with a transmitting end and a receiving end, which is the prior art. The part of the clamping plate 705 that contacts the laser displacement sensor 702 has a flexible pad, which can protect the laser displacement sensor 702. The first sliding frame 605 is made of iron. The magnet 706 can be magnetically attracted to the first sliding frame 605 to ensure that the installation frame 701 can be stabilized after sliding with the second sliding frame 612.

[0045] Specifically, the position of the detection mechanism 7 can be changed by sliding the first sliding frame 605 in the first sliding groove 604 in cooperation with the sliding of the second sliding frame 612 in the second sliding groove 611, so as to facilitate changing different positions to detect the steel structure building. The first sliding frame 605 is fixed by the clamping frame 610 through the contraction of the strong spring 609, and the limiting bolt 607 is tightened in the limiting member 606 to tightly abut against the surface of the body 1 to ensure the stability of the detection. At the same time, the clamping plate 705 slides along the outer wall of the threaded rod 703 so that its bottom abuts against the surface of the laser displacement sensor 702, and is fixed by tightening the nut 704 and the magnet 706. The displacement of the steel structure under the action of load or under the influence of factors such as temperature change is detected by the laser displacement sensor 702.

[0046] Embodiment 2:

[0047] Please see attached Figure 1 , Attachment Figure 7 , Attachment Fig. 9 and attached Fig.10 , and on the basis of Example 1, it is further obtained that a cleaning mechanism 8 is provided on the outside of the detection mechanism 7, the connecting plate 801 is fixedly installed on the left side of the mounting frame 701, the motor 802 is fixedly installed on the front side of the connecting plate 801, the rotating disk 803 is fixedly installed on the output shaft of the motor 802, the fixed shaft 804 is fixedly installed on the surface of the rotating disk 803 near the edge position, the fixed hanger 805 is fixedly installed on the lower end of the mounting frame 701, the slide bar 806 is slidably connected to the inside of the fixed hanger 805, the rotating member 807 is fixedly installed on the left end of the slide bar 806, the fixed shaft 804 is rotatably connected to the inside of the rotating member 807, the scraper 808 is fixedly installed on the front side of the slide bar 806, and the cleaning brush 809 is fixedly installed on the back side of the scraper 808, and the cleaning brush 809 is against the surface of the laser displacement sensor 702.

[0048] A timer is connected to the power line of the motor 802, which can be turned on within a specified time period. The fixed shaft 804 is fixedly installed on the surface of the rotating disk 803 near the edge, so that when the rotating disk 803 rotates, the fixed shaft 804 will also rotate along a circular trajectory, thereby driving the rotating member 807 to move reciprocatingly in a circle. When the fixed shaft 804 is located on the left side in the horizontal direction, the cleaning brush 809 is located just on the left side of the transmitting end of the laser displacement sensor 702. When the fixed shaft 804 is located on the right side in the horizontal direction, the cleaning brush 809 is located just on the right side of the receiving end of the laser displacement sensor 702, ensuring that the laser displacement sensor 702 is not blocked.

[0049] Specifically, the motor 802 can be started to drive the fixed shaft 804 on the rotating disk 803 to rotate. The rotation of the fixed shaft 804 in the rotating member 807 causes the slide bar 806 to slide back and forth along the fixed hanger 805, thereby causing the cleaning brush 809 on the scraper 808 to wipe back and forth against the transmitting end and the receiving end of the laser displacement sensor 702 to wipe off the dust and stains on its surface, thereby improving the accuracy of the detection data.

[0050] Working principle of the present invention: The present invention is a stable detection device and detection method for steel structure buildings. First, the equipment is transported to the detection point by the universal wheel at the lower end of the body 1, and the solar panel 2 is used to store and provide electricity. The position of the steel structure to be detected is adjusted. First, the clamping plate 705 is slid along the outer wall of the threaded rod 703 so that its bottom is against the surface of the laser displacement sensor 702, and the fastening nut 704 is tightened. The clamping frame 610 is pulled, and the first sliding frame 605 slides in the first sliding groove 604 and cooperates with the second sliding frame 612 to slide in the second sliding groove 611 to change the position of the detection mechanism 7. Then, the clamping frame 610 is released, and the strong spring 609 contracts, so that the clamping frame 610 fixes the first sliding frame 605. Then, the limit bolt 607 is tightened in the limit member 606 and tightly against the surface of the body 1. The magnet 706 is tightly pressed against each other, and is magnetically attracted to the first sliding frame 605, so that the laser displacement sensor 702 is firmly fixed and will not move. When used for a long time, the start time of the motor 802 is set by the timer of the motor 802, which drives the fixed shaft 804 on the rotating disk 803 to rotate, so that the fixed shaft 804 rotates in the rotating member 807, and drives the slide bar 806 to slide back and forth along the fixed hanger 805, so that the cleaning brush 809 on the scraper 808 wipes back and forth against the transmitting end and the receiving end of the laser displacement sensor 702 to wipe off the dust and stains on its surface. The laser displacement sensor 702 emits a laser beam to illuminate the reflective target on the surface of the steel structure, and then receives the reflected light. According to the principle of the round-trip time or phase change of the laser, the distance change between the surface of the steel structure and the sensor is calculated, thereby obtaining the displacement information.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stable detection device for steel structure buildings, comprising a body (1) and an adjustment mechanism (6) arranged on the front side thereof, characterized in that: A detection mechanism (7) is arranged on the front of the adjustment mechanism (6), and a cleaning mechanism (8) is arranged on the outside of the detection mechanism (7); The adjusting mechanism (6) comprises a mounting frame (601), the mounting frame (601) is connected to a fixing bolt (603) via a plug-in block (602), the mounting frame (601) is connected to a first sliding frame (605) via a first sliding groove (604), the first sliding frame (605) is connected to a limiting bolt (607) via a limiting member (606), the first sliding frame (605) is connected to a strong spring (609) and a clamping frame (610) via a mounting groove (608), and the first sliding frame (605) is connected to a second sliding frame (612) via a second sliding groove (611); The detection mechanism (7) comprises a mounting frame (701) and a laser displacement sensor (702); the mounting frame (701) is connected to a clamping plate (705) and a fastening nut (704) via a threaded rod (703); a magnet (706) is fixedly mounted on the back of the clamping plate (705); The cleaning mechanism (8) comprises a connecting plate (801) and a fixed hanger (805); the connecting plate (801) is connected to a rotating disk (803) and a fixed shaft (804) via a motor (802); the fixed hanger (805) is connected to a rotating member (807) via a sliding rod (806); and the sliding rod (806) is connected to a cleaning brush (809) via a scraper (808).

2. A stable detection device for steel structure buildings according to claim 1, characterized in that: A solar panel (2) is fixedly mounted on the upper end of the body (1), and a push handle (3) is fixedly mounted on the left side thereof. Slots (4) are provided on the front of the body (1) near the four corners, and threaded holes (5) are penetrated on both sides of the slots (4).

3. A stable detection device for steel structure buildings according to claim 2, characterized in that: The plug-in block (602) is fixedly installed on the back side of the installation frame (601) near the four corners, the fixing bolts (603) are threadedly connected to the threaded holes (5) and the inside of the plug-in block (602), the first sliding groove (604) passes through both sides of the installation frame (601), and the first sliding frame (605) is slidably connected to the inside of the first sliding groove (604).

4. A stable detection device for steel structure buildings according to claim 3, characterized in that: The limiting member (606) is fixedly mounted on the outside of the first sliding frame (605), the limiting bolt (607) is threadedly connected to the inside of the limiting member (606), the mounting groove (608) is opened on both sides of the first sliding frame (605), one end of the strong spring (609) is fixedly mounted inside the mounting groove (608), the clamping frame (610) is fixedly mounted on the other end of the strong spring (609), the second sliding groove (611) is opened inside the first sliding frame (605), and the second sliding frame (612) is slidably connected to the inside of the second sliding groove (611).

5. The stable detection device for steel structure building according to claim 2, characterized in that: The mounting frame (701) is fixedly mounted on the front side of the second sliding frame (612), and the laser displacement sensor (702) is arranged inside the mounting frame (701).

6. A stable detection device for steel structure buildings according to claim 5, characterized in that: The threaded rod (703) is fixedly mounted on the upper end of the mounting frame (701), the clamping plate (705) is slidably connected to the outer wall of the threaded rod (703), the fastening nut (704) is threadedly connected to the outer wall of the threaded rod (703), and the lower surface of the magnet (706) is against the upper surface of the first sliding frame (605).

7. The stable detection device for steel structure building according to claim 2, characterized in that: The connecting plate (801) is fixedly mounted on the left side of the mounting frame (701), the motor (802) is fixedly mounted on the front side of the connecting plate (801), the rotating disk (803) is fixedly mounted on the output shaft of the motor (802), and the fixed shaft (804) is fixedly mounted on the surface of the rotating disk (803) near the edge.

8. A stable detection device for steel structure buildings according to claim 7, characterized in that: The fixed hanger (805) is fixedly mounted on the lower end of the mounting frame (701); the sliding rod (806) is slidably connected inside the fixed hanger (805); the rotating member (807) is fixedly mounted on the left end of the sliding rod (806); the fixed shaft (804) is rotatably connected inside the rotating member (807); the scraper (808) is fixedly mounted on the front side of the sliding rod (806); the cleaning brush (809) is fixedly mounted on the back side of the scraper (808); and the cleaning brush (809) is against the surface of the laser displacement sensor (702).

9. A detection method for a stable detection device for a steel structure building applicable to any one of claims 1 to 8, characterized in that: The specific steps are as follows: Step 1: First, the device is transported to the detection point through the universal wheel at the lower end of the body (1), and the solar panel (2) is used to store and provide electricity. The position of the steel structure to be detected is adjusted. First, the clamping plate (705) is slid along the outer wall of the threaded rod (703) so that its bottom is against the surface of the laser displacement sensor (702), and the fastening nut (704) is tightened. The clamping frame (610) is pulled, and the first sliding frame (605) slides in the first sliding groove (604) to cooperate with the second sliding frame (612) slides in the second sliding groove (611) to change the position of the detection mechanism (7), and then releases the clamping frame (610), and the strong spring (609) contracts, so that the clamping frame (610) fixes the first sliding frame (605), and then tightens the limiting bolt (607) in the limiting member (606) and tightly contacts the surface of the body (1), and the magnet (706) is magnetically attracted to the first sliding frame (605), so that the laser displacement sensor (702) is firmly fixed and will not move; Step 2: When used for a long time, the start time of the motor (802) is set by the timer of the motor (802), driving the fixed shaft (804) on the rotating disk (803) to rotate, so that the fixed shaft (804) rotates in the rotating member (807), driving the slide bar (806) to slide back and forth along the fixed hanger (805), and then the cleaning brush (809) on the scraper (808) wipes back and forth against the transmitting end and the receiving end of the laser displacement sensor (702) to wipe off the dust and stains on its surface. The laser displacement sensor (702) emits a laser beam to illuminate the reflective target on the surface of the steel structure, and then receives the reflected light. According to the principle of the round-trip time or phase change of the laser, the distance change between the surface of the steel structure and the sensor is calculated, thereby obtaining displacement information.

10. The detection method of the stable detection equipment for steel structure buildings according to claim 9, characterized in that: In step 1, the specific calculation method of the laser displacement sensor (702) is optimized by an intelligent algorithm as follows: Principle 1. Calculation based on time difference (laser pulse flight time method) For the laser pulse flight time method, the basic principle is that the speed of light in a vacuum is C = 299792458 m / s (the speed in air is approximately this value). Let the round-trip time from laser emission to reception be t, and the distance between the sensor and the target be d. The calculation formula is: Principle 2: Calculation based on phase difference (laser phase method) Assume the wavelength of the laser is γ, and the phase difference between the emitted light and the received light is Then the distance d can be calculated as

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