Steel structure verticality rapid detection device and detection method

Through the cooperation of the beam module and the constraint component, the problems of time-consuming and susceptible to interference in the verticality detection of steel structures are solved, and fast and accurate detection effects are achieved.

CN120721054APending Publication Date: 2025-09-30THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
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Patent Information

Application Number
CN202511026093.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-24
Publication Date
2025-09-30

AI Technical Summary

Technical Problem

Existing methods for detecting the verticality of steel structures are time-consuming and easily affected by external environmental interference, and are particularly inconvenient to operate during construction.

Method used

A beam module is used in conjunction with a ruler for detection. Rapid vertical adjustment and stabilization are achieved through the detection base, cantilever rod, control spherical shell and constraint components. It is fixed to the steel structure column with a magnetic block. The beam module measures the verticality and the constraint component maintains stability.

Benefits of technology

It achieves fast and accurate verticality detection of steel structure columns, reduces external interference, and improves measurement accuracy and operational convenience.

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Abstract

The invention relates to the technical field of building construction, in particular to a steel structure perpendicularity rapid detection device and method.The steel structure perpendicularity rapid detection device comprises a detection base and a restraining assembly, a steel structure magnetic attraction block is installed on one side of the detection base through bolts, and two cantilever rods are horizontally and symmetrically arranged on the side, away from the steel structure magnetic attraction block, of the detection base; the light beam module is adopted to replace a vertical line of a traditional plumb bob, when the light beam module is matched with a ruler to measure different heights of a steel structure stand column, numerical value reading is accurate and clear, meanwhile, the spherical shell is controlled to be matched with two arc-shaped clamping plates of the disassembling and assembling assembly, self-adaptive rapid vertical adjustment can be conducted on the light beam module, and then under the matching effect of the restraining assembly, the height of the steel structure stand column is measured. The vertical posture stability of the light beam module is restrained, external interference is avoided, the detection and measurement precision is improved, in addition, the conical balancing weight can be blocked when not used by shifting the protection plate, and operation is free of worry and convenient.
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Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a device and method for quickly detecting the verticality of a steel structure. Background Art

[0002] In the construction industry, the application of steel structures in steel-concrete building structures can improve the strength of buildings after construction and reduce the construction period. Columns are the main load-bearing components of steel structures. If the verticality deviation is too large, the load cannot be evenly transmitted along the column axis, which may cause the column to become unstable due to excessive bending stress. Therefore, the verticality of steel structure columns needs to be tested during construction.

[0003] The existing verticality detection of steel structures is mainly carried out by total stations or manual operation. The total station often takes a long time to detect the verticality of steel structures. When rapid detection is required, a plumb line and a ruler are used manually to measure the distance between the vertical line and the column at different heights of the column to detect the verticality of the column. However, since the construction of the steel structure column is not completed during the construction, the vertical line of the plumb line is easily disturbed by the external environment during the construction operation, which makes operation inconvenient. Summary of the Invention

[0004] The purpose of the present invention is to provide a device and method for quickly detecting the verticality of a steel structure, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a device for quickly detecting the verticality of a steel structure, comprising:

[0006] A detection base, one side of which is provided with a steel structure magnetic block installed by bolts, and two cantilever rods are horizontally symmetrically provided on the side of the detection base away from the steel structure magnetic block, and an adaptive detection assembly is provided on the opposite side of the two cantilever rods away from the detection base through a removable assembly, the adaptive detection assembly includes a control spherical shell, a conical counterweight block and a beam module, and the removable assembly includes two assembly seats and two arc-shaped clamping plates;

[0007] The restraint component includes a toggle protection plate, two control connecting rods and two restraint pressure plates. The two restraint pressure plates are respectively inserted in the two arc-shaped clamping plates and close to the control ball shell.

[0008] Preferably, the two assembly seats are respectively arranged at one end of the two cantilever rods, and assembly grooves are opened on the opposite sides of the two assembly seats. Assembly blocks are respectively provided at the center of one side of the two arc-shaped splints, and the two assembly blocks are horizontally inserted into the two assembly grooves.

[0009] Preferably, a through groove is provided on one side of the assembly groove of the assembly seat, a constraint ring is provided on one side of the assembly seat located at the through groove, a disassembly screw head is provided at the center of one end of the arc-shaped clamping plate of the assembly block, the disassembly screw head horizontally passes through the through groove and is located in the constraint ring, and an assembly nut is provided on the side of the disassembly screw head located in the constraint ring through a threaded sleeve.

[0010] Preferably, a central mounting rod is vertically provided at the center of the control spherical shell, and the central mounting rod passes through the lower end of the control spherical shell and is connected to the upper end of the conical counterweight block. A combination groove is vertically passed through the upper end of the central mounting rod, and a light beam module is vertically inserted in the combination groove. A light-transmitting groove is provided in the center of the conical counterweight block connected to the combination groove, and the light source of the light beam module corresponds to the light-transmitting groove.

[0011] Preferably, the opposite sides of the two arc-shaped splints are arc-shaped grooves, and the two sides of the control ball shell are movably inserted into the arc-shaped grooves of the two arc-shaped splints. A number of ball grooves are opened in the two arc-shaped grooves, and adaptive balls are rotatably inserted in the several ball grooves, and one side of the several adaptive balls extends out of the ball groove and contacts the outer peripheral surface of the control ball shell.

[0012] Preferably, a spring groove is opened in the center of the arc groove of the arc splint, and a constraint pressure rod is provided in the spring groove through the movable plug of the partition plate. The constraint pressure rod passes through the two sides of the partition plate and a constraint pressure plate and a pressure plate are respectively provided. One side of the constraint pressure plate is in contact with the control ball shell, and the constraint pressure rod is located between the pressure plate and the partition plate and is sleeved with a reset spring.

[0013] Preferably, a rod groove is provided in the cantilever rod and connected to the assembly groove, a control connecting rod is movably inserted in the rod groove, a docking slot is provided on one side of the assembly block close to the rod groove, and one side of the control connecting rod is inserted into the docking slot and provided with a pushing block.

[0014] Preferably, the restraining pressure rod is movably inserted into the docking slot on one side away from the control ball shell and contacts one side surface of the pushing block, and the pushing block is provided with a pushing inclined surface on one end close to the restraining pressure rod.

[0015] Preferably, a sliding groove is provided on the side of the two cantilever rods away from the assembly seat, a toggle protective plate is provided between the two sliding grooves, and pulling rods are horizontally provided on both sides of the toggle protective plate. The two pulling rods are respectively inserted into the two sliding grooves and connected to the control connecting rod. A blocking groove is provided on the side of the toggle protective plate away from the detection base, and a retaining magnetic block is provided on the side of the two cantilever rods close to the pulling rod through a support block, and when the conical counterweight block is horizontally oriented, the blocking groove of the toggle protective plate is sleeved on the end of the conical counterweight block to keep the magnetic block in contact with the pulling rod.

[0016] A method for detecting the verticality of a steel structure using a rapid detection device comprises the following steps:

[0017] Step 1: When a vertical test is required on a steel structure column, the detection base and cantilever rod are horizontally adsorbed to the side of the steel structure column through the steel structure magnetic block, and then the toggle protection plate and the pull rod are pushed toward the detection base. The pull rod is separated from the magnetic adsorption of the magnetic block, and the conical counterweight is separated from the blocking groove of the toggle protection plate.

[0018] Step 2: Under the counterweight of the conical counterweight, the control spherical shell quickly adapts vertically between the arc-shaped clamping plates through a number of adaptive balls, so that the beam module installed on the control spherical shell can be perpendicular to the ground. Then the beam module is started and the laser beam is irradiated downwards;

[0019] Step 3: The operator holds a ruler and places one end against the steel structure column. When the laser beam of the beam module shines on the ruler, the operator can manually observe the distance between the column and the vertical beam at different heights, and then calculate the verticality data of the steel structure column.

[0020] Step 4: When the beam module of the control spherical shell is in a vertical posture, in order to avoid the interfering movement of the control spherical shell, by pulling the pulling rod and toggling the protective plate, the two control connecting rods control the two pushing blocks to push the two constraint pressure rods, so that the ends of the two constraint pressure plates avoid being pressed against the control spherical shell, thereby avoiding unnecessary shaking of the control spherical shell.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The beam module is used to replace the vertical line of the traditional plumb line. When measuring different heights of steel structure columns in conjunction with a ruler, the numerical reading is accurate and clear. At the same time, the two arc-shaped clamping plates of the spherical shell and the disassembly and assembly components are controlled to adaptively and quickly adjust the vertical position of the beam module. Then, with the cooperation of the constraint component, the vertical posture stability of the beam module is constrained to avoid external interference and improve the accuracy of detection and measurement. In addition, the protective plate can be turned to seal the conical counterweight block when not in use, making operation worry-free and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the partial episiotomy structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the split structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of part A;

[0027] Figure 5 This is a side cross-sectional view of the arc-shaped splint connection of the present invention;

[0028] Figure 6 For the present invention Figure 6 Schematic diagram of part B;

[0029] Figure 7 For the present invention Figure 6 Schematic diagram of the C part.

[0030] In the figure: detection base 1, steel structure magnetic block 2, cantilever rod 3, assembly seat 4, assembly groove 5, assembly block 6, arc-shaped splint 7, disassembly and assembly screw head 8, constraint ring 9, control ball shell 10, center mounting rod 11, conical counterweight block 12, light beam module 13, light-transmitting groove 14, adaptive ball 15, docking slot 16, control connecting rod 17, push block 18, spring groove 19, constraint pressure rod 20, constraint pressure plate 21, return spring 22, slide groove 23, toggle protective plate 24, pulling rod 25, and retaining magnetic block 26. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] Please see the attached Figure 1-7 , this application provides the following technical solutions.

[0033] Embodiment 1: A device for quickly detecting the verticality of a steel structure, comprising a detection base 1, a steel structure magnetic block 2 being installed on one side of the detection base 1 by bolts, two cantilever rods 3 being horizontally symmetrically provided on the side of the detection base 1 away from the steel structure magnetic block 2, the two cantilever rods 3 being away from the opposite side of the detection base 1 by a disassembly component and an adaptive detection component being provided, the adaptive detection component comprising a control spherical shell 10, a conical counterweight block 12 and a beam module 13, the disassembly component comprising two assembly seats 4 and two arcuate splints 7, the two assembly seats 4 being respectively provided at one end of the two cantilever rods 3, the two assembly seats 4 being provided with an assembly groove 5 on the opposite side, the two arcuate splints 7 being provided with an assembly block 6 at the center of one side, the two assembly The mounting blocks 6 are horizontally inserted into the two assembly grooves 5 respectively. A through groove is opened on one side of the assembly groove 5 of the assembly seat 4. A constraint ring 9 is provided on the side of the assembly seat 4 located at the through groove. A disassembly screw head 8 is provided at the center of one end of the arc-shaped splint 7 of the assembly block 6. The disassembly screw head 8 horizontally passes through the through groove and is located in the constraint ring 9. An assembly nut is provided on the side of the disassembly screw head 8 located in the constraint ring 9 through a threaded connection. The two arc-shaped splints 7 can be quickly assembled and disassembled on the assembly seat 4 through the two assembly blocks 6. When the assembly nut is placed in the constraint ring 9, since the diameter of the constraint ring 9 is greater than the width of the through groove, the assembly nut cannot be separated from the constraint ring 9, and the arc-shaped splint 7 and the assembly block 6 can remain stably installed.

[0034] A central mounting rod 11 is vertically provided at the center of the control spherical shell 10. The central mounting rod 11 passes through the lower end of the control spherical shell 10 and is connected to the upper end of the conical counterweight 12. A combination slot is vertically penetrated at the upper end of the central mounting rod 11. A beam module 13 is vertically inserted into the combination slot. A light-transmitting slot 14 is provided in the center of the conical counterweight 12, which is connected to the combination slot. The light source of the beam module 13 corresponds to the light-transmitting slot 14. The laser beam of the beam module 13 is emitted through the light-transmitting slot 14. A level bubble is provided on the beam module 13 to determine the verticality of the beam module 13. The level bubble can also be provided on the control spherical shell 10.

[0035] The opposite sides of the two arc-shaped splints 7 are arc-shaped grooves, and the arc-shaped grooves of the two arc-shaped splints 7 are movably inserted on both sides of the control ball shell 10. A number of ball grooves are opened in the two arc-shaped grooves, and adaptive balls 15 are rotatably inserted in the several ball grooves, and one side of the several adaptive balls 15 extends out of the ball groove and contacts the outer peripheral surface of the control ball shell 10. The quick disassembly of the arc-shaped splints 7 can facilitate the replacement of the control ball shell 10 and the lubrication and maintenance of the adaptive balls 15, thereby improving the adaptive vertical adjustment of the control ball shell 10 between the two arc-shaped splints 7. The counterweight of the conical counterweight block 12 is greater than the total weight of the control ball shell 10 and the light beam module 13. The cantilever rod 3, the detection base 1, the control ball shell 10, the arc-shaped splint 7, the assembly seat 4 and the assembly block 6 are all lightweight metal structures, such as lightweight aluminum alloy.

[0036] Embodiment 2, on the basis of embodiment 1, a constraint component is provided to constrain the stability of the control ball shell 10, and the activities of the constraint component include a toggle protective plate 24, two control connecting rods 17 and two constraint pressure plates 21, and the two constraint pressure plates 21 are respectively inserted in the two arc-shaped clamping plates 7 and close to the control ball shell 10, and a spring groove 19 is provided in the center of the arc-shaped groove of the arc-shaped clamping plate 7, and a constraint pressure rod 20 is movably inserted in the spring groove 19 through a partition plate. The constraint pressure rod 20 passes through both sides of the partition plate and is respectively provided with a constraint pressure plate 21 and a pressure plate, and one side of the constraint pressure plate 21 is in contact with the control ball shell 10, and the constraint pressure rod 20 is located between the pressure plate and the partition plate and is sleeved with a reset spring 22. In the natural state, the constraint pressure plate 21 does not contact the control ball shell 10.

[0037] A rod groove is provided in the cantilever rod 3, which is connected to the assembly groove 5. A control link 17 is movably inserted in the rod groove. A docking slot 16 is provided on the side of the assembly block 6 close to the rod groove. One side of the control link 17 is inserted into the docking slot 16 and is provided with a pushing block 18. The constraint pressure rod 20 is movably inserted into the docking slot 16 on the side away from the control ball shell 10 and contacts one side of the pushing block 18, and the pushing block 18 is provided with a pushing inclined surface on the end close to the constraint pressure rod 20. When the control link 17 pushes the pushing block 18 to move away from the detection base 1, the pushing block 18 pushes the constraint pressure rod 20 and the constraint pressure plate 21 to move and squeeze the control ball shell 10 through the inclined surface. A rubber pad with anti-slip grooves can be provided on the side of the constraint pressure plate 21 close to the control ball shell 10 to control the compression and anti-rotation of the ball shell 10.

[0038] A slide groove 23 is provided on the side of the two cantilever rods 3 away from the assembly seat 4, a toggle protective plate 24 is provided between the two slide grooves 23, and a pulling rod 25 is provided horizontally on both sides of the toggle protective plate 24. The two pulling rods 25 are respectively inserted into the two slide grooves 23 and connected to the control link 17. A blocking groove is provided on the side of the toggle protective plate 24 away from the detection base 1, and a retaining magnetic block 26 is provided on the side of the two cantilever rods 3 close to the pulling rod 25 through a support block, and when the conical counterweight block 12 is horizontally oriented, the blocking groove of the toggle protective plate 24 is sleeved on the end of the conical counterweight block 12 to keep the magnetic block 26 and the pulling rod 25 are in contact. When the constraint pressure plate 21 is pressed against the control ball shell 10, the pulling rod 25 is in magnetic contact with the holding magnetic block 26 to ensure that the side of the push block 18 is in stable contact with the constraint pressure rod 20. When the conical counterweight block 12 is toward the toggle protective plate 24, the magnetic block 26 is kept in contact with the pulling rod 25, which can keep the pulling rod 25 blocking the light-transmitting groove 14 of the conical counterweight block 12, avoiding the dust and dirt on the construction site in an unused environment from contaminating the light-transmitting groove 14 and the laser generating port of the light beam module 13. In addition, the light beam of the light beam module 13 can be a laser ranging beam, which can measure data at different positions at the same time, thereby speeding up the measurement efficiency.

[0039] A method for detecting the verticality of a steel structure using a rapid detection device comprises the following steps:

[0040] Step 1: When it is necessary to perform a vertical test on the steel structure column, the detection base 1 and the cantilever rod 3 are horizontally adsorbed on the side of the steel structure column through the steel structure magnetic block 2, and then the toggle protection plate 24 and the pulling rod 25 are pushed toward the side of the detection base 1. The pulling rod 25 is separated from the magnetic attraction of the holding magnetic block 26, and the conical counterweight block 12 is separated from the blocking groove of the toggle protection plate 24;

[0041] Step 2: Under the counterweight action of the conical counterweight block 12, the control spherical shell 10 quickly adapts vertically between the arc-shaped clamping plates 7 through a number of adaptable balls 15, so that the beam module 13 installed on the control spherical shell 10 can be perpendicular to the ground. Then the beam module 13 is activated and the laser beam is irradiated downwards;

[0042] Step 3: The operator holds a ruler and places one end against the steel structure column. When the laser beam of the beam module 13 is irradiated on the ruler, the distance of the column at different heights from the vertical beam can be manually observed, and then the verticality data of the steel structure column can be calculated.

[0043] Step 4: When the beam module 13 of the control spherical shell 10 is in a vertical posture, in order to avoid interfering activities of the control spherical shell 10, by pulling the pulling rod 25 and toggling the protective plate 24, the two control connecting rods 17 control the two pushing blocks 18 to push the two constraint pressure rods 20, so that the ends of the two constraint pressure plates 21 avoid being pressed against the control spherical shell 10, thereby avoiding unnecessary shaking of the control spherical shell 10.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for quickly detecting the verticality of a steel structure, characterized in that: include: A detection base (1), wherein a steel structure magnetic block (2) is installed on one side of the detection base (1) via bolts, two cantilever rods (3) are horizontally symmetrically provided on a side of the detection base (1) away from the steel structure magnetic block (2), and an adaptive detection component is provided on the opposite side of the two cantilever rods (3) away from the detection base (1) via a disassembly component, the adaptive detection component comprising a control spherical shell (10), a conical counterweight block (12) and a light beam module (13), and the disassembly component comprising two assembly seats (4) and two arc-shaped clamping plates (7); The restraint assembly includes a toggle protection plate (24), two control connecting rods (17) and two restraint pressure plates (21), and the two restraint pressure plates (21) are respectively inserted into the two arc-shaped clamping plates (7) and close to the control ball shell (10).

2. A steel structure verticality rapid detection device according to claim 1, characterized in that: The two assembly seats (4) are respectively arranged at one end of the two cantilever rods (3); an assembly groove (5) is provided on the opposite side of the two assembly seats (4); an assembly block (6) is provided at the center of one side of the two arc-shaped clamping plates (7); and the two assembly blocks (6) are respectively inserted horizontally into the two assembly grooves (5).

3. A steel structure verticality rapid detection device according to claim 2, characterized in that: A through groove is provided on one side of the assembly groove (5) of the assembly seat (4), a restraining ring (9) is provided on one side of the assembly seat (4) located at the through groove, a disassembly screw head (8) is provided at the center of one end of the arc-shaped clamping plate (7) of the assembly block (6), the disassembly screw head (8) horizontally passes through the through groove and is located in the restraining ring (9), and an assembly nut is provided on the side of the disassembly screw head (8) located in the restraining ring (9) through a threaded sleeve.

4. A steel structure verticality rapid detection device according to claim 3, characterized in that: A central mounting rod (11) is vertically provided at the center of the control spherical shell (10), and the central mounting rod (11) passes through the lower end of the control spherical shell (10) and is connected to the upper end of the conical counterweight (12). A combination groove is vertically passed through the upper end of the central mounting rod (11), and a light beam module (13) is vertically inserted into the combination groove. A light transmission groove (14) is provided at the center of the conical counterweight (12) and is connected to the combination groove, and a light source of the light beam module (13) corresponds to the light transmission groove (14).

5. A steel structure verticality rapid detection device according to claim 4, characterized in that: The two arc-shaped splints (7) have arc-shaped grooves on opposite sides, and the two sides of the control ball shell (10) are movably connected to the arc-shaped grooves of the two arc-shaped splints (7). A plurality of ball grooves are provided in the two arc-shaped grooves, and adaptive balls (15) are rotatably connected in the plurality of ball grooves. One side of the plurality of adaptive balls (15) extends out of the ball groove and contacts the outer peripheral surface of the control ball shell (10).

6. A steel structure verticality rapid detection device according to claim 5, characterized in that: A spring groove (19) is provided in the center of the arc groove of the arc splint (7), and a restraining pressure rod (20) is provided in the spring groove (19) through a movable plug-in connection of the partition plate. The restraining pressure rod (20) passes through the partition plate and is provided with a restraining pressure plate (21) and a pressure plate on both sides thereof. One side of the restraining pressure plate (21) contacts the control ball shell (10), and a return spring (22) is provided between the restraining pressure rod (20) and the partition plate.

7. A steel structure verticality rapid detection device according to claim 6, characterized in that: A rod groove is provided in the cantilever rod (3) and is connected to the assembly groove (5). A control connecting rod (17) is movably inserted in the rod groove. A docking slot (16) is provided through one side of the assembly block (6) close to the rod groove. One side of the control connecting rod (17) is inserted into the docking slot (16) and is provided with a pushing block (18).

8. A steel structure verticality rapid detection device according to claim 7, characterized in that: The restraining pressure rod (20) is movably inserted into the docking slot (16) on one side away from the control ball shell (10) and contacts a side surface of the pushing block (18), and the pushing block (18) is provided with a pushing inclined surface at one end close to the restraining pressure rod (20).

9. A steel structure verticality rapid detection device according to claim 8, characterized in that: A sliding groove (23) is provided on the side of the two cantilever rods (3) away from the assembly seat (4), a toggle protection plate (24) is provided between the two sliding grooves (23), and a pulling rod (25) is provided horizontally on both sides of the toggle protection plate (24). The two pulling rods (25) are respectively inserted into the two sliding grooves (23) and connected to the control connecting rod (17). A blocking groove is provided on the side of the toggle protection plate (24) away from the detection base (1), and a retaining magnetic block (26) is provided on the side of the two cantilever rods (3) close to the pulling rod (25) through a support block, and when the conical counterweight block (12) is horizontally oriented, the blocking groove of the toggle protection plate (24) is sleeved on the end of the conical counterweight block (12) to keep the magnetic block (26) in contact with the pulling rod (25).

10. A detection method using the steel structure verticality rapid detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: When it is necessary to perform vertical detection on the steel structure column, the detection base (1) and the cantilever rod (3) are horizontally adsorbed on the side of the steel structure column through the steel structure magnetic block (2), and then the toggle protection plate (24) and the pulling rod (25) are pushed toward the side of the detection base (1), the pulling rod (25) is separated from the magnetic adsorption of the holding magnetic block (26), and the conical counterweight block (12) is separated from the blocking groove of the toggle protection plate (24); Step 2: Under the counterweight action of the conical counterweight block (12), the control spherical shell (10) is quickly adapted vertically between the arc-shaped clamping plates (7) through a plurality of adaptable balls (15), so that the light beam module (13) installed on the control spherical shell (10) can be perpendicular to the ground, and then the light beam module (13) is started, and the laser beam is irradiated downward; Step 3: The operator holds a ruler and places one end against the steel structure column. Then, when the laser beam of the beam module (13) is irradiated on the ruler, the distance between the column and the vertical beam at different heights can be manually observed, and then the verticality data of the steel structure column can be calculated. Step 4: When the light beam module (13) of the control spherical shell (10) is in a vertical posture, in order to avoid interfering activities of the control spherical shell (10), by pulling the pulling rod (25) and toggling the protective plate (24), the two control connecting rods (17) control the two pushing blocks (18) to push the two constraint pressure rods (20), thereby preventing the ends of the two constraint pressure plates (21) from being pressed against the control spherical shell (10), thereby avoiding unnecessary shaking of the control spherical shell (10).

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