Waterproof construction method for steel column penetrating through metal roof

Abstract

The application belongs to the technical field of building construction waterproofing, and particularly relates to a waterproof construction method for a steel column penetrating a metal roof, which comprises the following steps: step one: measurement and setting-out: cleaning the surface of the metal roof panel, determining the steel column penetration point, and popping out a cutting contour line; the waterproof construction method for the steel column penetrating the metal roof is characterized in that: a drilling mechanism is arranged to perform drilling processing on the metal roof; the support frame and the support plate are fixed on the shockproof layer through fastening bolts; the shockproof layer continues to play a shock-absorbing role to protect the driving mechanism on the support frame; the telescopic rod of the lifting electric push rod is fixedly installed with the lifting frame; the driving drilling mechanism is driven to perform vertical feeding movement; the support frame guide rail guides and restricts the lifting frame to ensure that the drill rod always moves vertically during the feeding process; the motor drives the drill handle to rotate; the hollow drill rod performs annular cutting through downward rotation; only the hole wall material is cut off; compared with a solid drill bit, the hollow drill rod has small cutting resistance, low torque, and small deformation influence on the thin-wall metal plate.

Description

Technical Field

[0001] This invention relates to the field of waterproofing technology in building construction, and in particular to a waterproofing construction method for steel columns penetrating metal roofs. Background Technology

[0002] Metal roofs are widely used in large-span buildings such as industrial plants, logistics warehouses, and stadiums because of their light weight and quick construction. To meet the installation requirements of facilities such as equipment supports, light wells, or smoke exhaust windows, it is often necessary to use drilling equipment to make holes in the roof and penetrate the steel columns for installation.

[0003] In existing technologies, the base of drilling equipment is mostly fixed by mechanical clamping or counterweight. Mechanical clamping requires drilling holes in the roof, which damages the sheet material and can easily lead to water leakage. In addition, metal roofs are often designed with a certain slope to facilitate drainage, which causes the drill rod to be non-perpendicular to the roof during drilling. This can easily cause the hole wall to tilt, insufficient cutting depth on one side, or drill bit breakage, which seriously affects the quality of the hole. At the same time, drilling equipment mostly uses ordinary solid twist drills, but solid drills have high cutting resistance and slow feed. They need to cut all the material in the hole core, which is inefficient and has a large drilling torque, which can easily tear thin-walled metal roof panels. Therefore, a waterproof construction method for steel columns penetrating metal roofs is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] In existing technologies, mechanical clamping requires drilling holes in the roof, which damages the roof panels and can easily lead to water leakage. Furthermore, the slope of the metal roof causes the drill rod to be non-perpendicular to the roof when drilling, which can easily cause the hole wall to tilt. At the same time, solid drills have high cutting resistance and slow feed, requiring the cutting of all the core material, resulting in low efficiency and high drilling torque. This invention proposes a waterproof construction method for steel columns penetrating metal roofs.

[0005] The present invention proposes a waterproof construction method for steel columns penetrating metal roofs, including step one: measurement and layout: clean the surface of the metal roof panel, determine the penetration point of the steel column, and pop up the cutting outline;

[0006] Step 2: Drilling holes: Use drilling equipment to drill through holes along the outline of the metal roof panel to collect cutting debris;

[0007] Step 3: Edge treatment: Use a deburring device to smooth the edges of the hole walls and apply an anti-rust coating;

[0008] Step 4: Install the sleeve: Place the bottom waterproof sleeve over the outside of the steel column and weld it to the upper surface of the metal roof panel;

[0009] Step 5: Filling and sealing: Fill the annular gap between the steel column and the bottom waterproof sleeve with flexible waterproof sealant;

[0010] Step Six: Install the pressure cover: Fit the upper waterproof cover onto the outside of the steel column and use a clamping device to press it firmly against the roof panel;

[0011] Step 7: Edge sealing acceptance: Apply weather-resistant sealant to the seam at the bottom edge of the waterproof cover and conduct a water spray test for acceptance.

[0012] Preferably, the hole-opening device in step two includes a vacuum adsorption base with a silicone suction cup, an adsorption mechanism, a leveling mechanism, and a hole-opening mechanism.

[0013] The adsorption mechanism is located on the outer surface of the vacuum adsorption base and is fixed to the metal roof by negative pressure adsorption. The adsorption mechanism includes a negative pressure sensor, which monitors and provides feedback on the adsorption stability of the vacuum adsorption base by real-time monitoring of the negative pressure value.

[0014] The leveling mechanism is located on the upper surface of the vacuum adsorption base and levels the opening mechanism. The leveling mechanism includes a tilt sensor, which automatically controls the horizontal attitude of the opening mechanism by detecting tilt angle data.

[0015] The hole-opening mechanism is located on the upper surface of the leveling mechanism and performs drilling on the metal roof. The hole-opening mechanism includes a hollow drill rod, which performs annular cutting and hole-opening on the metal roof by pressing down and rotating.

[0016] Preferably, the adsorption mechanism further includes a support frame with a buffer layer, the support frame being fixedly installed on the upper surface of the vacuum adsorption base, an alarm being fixedly installed on the left side of the support frame, and the negative pressure sensor being fixedly installed on the air inlet pipe of the vacuum adsorption base.

[0017] Preferably, the leveling mechanism further includes a leveling electric push rod, which is fixedly installed on the inner wall of the groove of the support frame.

[0018] Preferably, one end of the telescopic rod of the leveling electric actuator is hinged to a support plate with a shock-absorbing layer via a hinge seat. One end of the support plate has a rotating rod that is rotatably connected to the inner wall of the groove of the support frame via a bearing. The tilt sensor is fixedly mounted on the shock-absorbing layer of the support plate by fastening bolts.

[0019] Preferably, the opening mechanism further includes a support frame, which is fixedly installed on the shock-absorbing layer of the support plate by fastening bolts, and one end of the support rod of the support frame is fixedly installed to the right side of the support frame.

[0020] Preferably, a lifting electric push rod is fixedly installed at the top of the support frame, and a lifting frame is fixedly installed at one end of the telescopic rod of the lifting electric push rod. The slider of the lifting frame is in rolling engagement with the support rod guide rail of the support frame via rollers.

[0021] Preferably, a motor is fixedly installed inside the lifting frame, and the output shaft of the motor is rotatably connected to the bottom groove of the lifting frame via a bearing. A drill shank is fixedly installed on the output shaft of the motor, and the drill shank is rotatably connected to the lower surface of the lifting frame via a bearing.

[0022] Preferably, the hollow drill rod is slidably inserted into the groove of the drill shank, and a fixing bolt is threadedly connected to both the threaded hole of the hollow drill rod and the threaded hole of the drill shank, and is secured in place by a nut.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. By setting up an adsorption mechanism, the device is fixed to the metal roof using negative pressure adsorption. The mounting surfaces of the support frame and the vacuum adsorption base are equipped with a buffer layer to effectively prevent the vibration of the leveling mechanism on the support frame from being transmitted to the vacuum adsorption base, thus preventing vibration from damaging the seal between the suction cup and the roof. The alarm can receive the signal from the negative pressure sensor and issue an audible and visual alarm when the adsorption force is insufficient, providing a direct safety warning and compensating for the limited field of vision in high-altitude operations. This ensures that operators can detect potential hazards and take measures immediately. The negative pressure sensor is directly installed on the air intake passage to detect pressure changes. Compared with the sensor installed inside the cavity, the pipeline installation is more sensitive and can more accurately reflect the air intake status of the vacuum system, avoiding misjudgments caused by uneven pressure in dead corners inside the cavity. This solves the technical problem in existing technologies where the base of the perforated equipment is mostly fixed by mechanical clamping or counterweight. Mechanical clamping requires drilling holes in the roof, which damages the material and easily leads to water leakage.

[0025] 2. By setting up a leveling mechanism, the drilling mechanism is leveled. The hinge between the leveling electric push rod and the support plate allows the support plate to swing at an angle when the push rod extends or retracts. The rotational connection between the end of the support plate and the support frame establishes the rotation center axis of the support plate. Together with the hinged end of the leveling electric push rod, a stable linkage mechanism is formed. The shock-absorbing layer further filters and absorbs high-frequency vibrations from the drilling mechanism, protecting the precision sensors and leveling electric push rod installed on the support plate and preventing vibration from causing fasteners to loosen or electronic components to be damaged. The tilt sensor is installed on the shock-absorbing layer of the support plate to directly detect the actual horizontal state of the support plate, ensuring that the leveling result is accurate. This solves the technical problem in the existing technology that metal roofs are often designed with a certain slope to facilitate drainage, which causes the drill rod to be non-perpendicular to the roof when drilling, which can easily cause the hole wall to tilt, insufficient cutting depth on one side, or drill bit breakage, seriously affecting the quality of the hole.

[0026] 3. By setting up an opening mechanism, the metal roof is drilled. The support frame and support plate are fixed to the shock-absorbing layer with fastening bolts. The shock-absorbing layer continues to play a shock-absorbing role and protects the drive mechanism on the support frame. The telescopic rod of the lifting electric push rod is fixedly installed with the lifting frame and drives the drilling mechanism to perform vertical feed movement. The support frame guide rail guides and constrains the lifting frame to ensure that the drill rod always moves vertically during the feed process. The motor drives the drill shank to rotate. The hollow drill rod and drill shank are connected and tightened by the same fixing bolt and nut threaded connection to achieve axial locking of the drill rod. The hollow drill rod performs ring cutting by pressing down and rotating, removing only the hole wall material. Compared with solid drill bits, hollow drill rods have lower cutting resistance and lower torque, and have less impact on the deformation of thin-walled metal plates. This solves the technical problems in the existing technology where opening equipment mostly uses ordinary solid twist drills, but solid drills have high cutting resistance, slow feed, and need to cut all the material in the hole core, resulting in low efficiency and high drilling torque, which easily tears thin-walled metal roof panels. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a waterproofing construction method for steel columns penetrating metal roofs proposed in this invention;

[0028] Figure 2 This is a perspective view of the alarm structure of a waterproof construction method for steel columns penetrating metal roofs proposed in this invention;

[0029] Figure 3 This is a perspective view of the negative pressure sensor structure for a waterproofing construction method involving steel columns penetrating a metal roof, as proposed in this invention.

[0030] Figure 4 This is a perspective view of the support plate structure for a waterproof construction method for steel columns penetrating metal roofs proposed in this invention.

[0031] Figure 5 This is a perspective view of the leveling electric push rod structure of a waterproof construction method for steel columns penetrating metal roofs proposed in this invention.

[0032] Figure 6 This is a perspective view of the lifting frame structure of a waterproof construction method for steel columns penetrating a metal roof, as proposed in this invention.

[0033] Figure 7 This is a perspective view of the lifting electric push rod structure of a waterproof construction method for steel columns penetrating metal roofs proposed in this invention.

[0034] Figure 8 This is a perspective view of the motor structure of a waterproof construction method for steel columns penetrating metal roofs proposed in this invention.

[0035] Figure 9 This is a perspective view of the drill shank structure of a waterproofing construction method for steel columns penetrating metal roofs proposed in this invention.

[0036] Figure 10 This is a perspective view of the hollow drill rod structure of a waterproof construction method for steel columns penetrating metal roofs proposed in this invention.

[0037] In the diagram: 1. Vacuum adsorption base; 2. Support frame; 21. Alarm; 22. Negative pressure sensor; 3. Leveling electric push rod; 4. Support plate; 41. Tilt sensor; 5. Support frame; 6. Lifting electric push rod; 61. Lifting frame; 7. Motor; 71. Drill shank; 8. Hollow drill rod; 81. Fixing bolt. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] A waterproofing construction method for steel columns penetrating a metal roof includes step one: measurement and layout: clean the surface of the metal roof panel, determine the penetration point of the steel column, and pop up the cutting outline;

[0040] Step 2: Drilling holes: Use drilling equipment to drill through holes along the outline of the metal roof panel to collect cutting debris;

[0041] Step 3: Edge treatment: Use a deburring device to smooth the edges of the hole walls and apply an anti-rust coating;

[0042] Step 4: Install the sleeve: Place the bottom waterproof sleeve over the outside of the steel column and weld it to the upper surface of the metal roof panel;

[0043] Step 5: Filling and sealing: Fill the annular gap between the steel column and the bottom waterproof sleeve with flexible waterproof sealant;

[0044] Step Six: Install the pressure cover: Fit the upper waterproof cover onto the outside of the steel column and use a clamping device to press it firmly against the roof panel;

[0045] Step 7: Edge sealing acceptance: Apply weather-resistant sealant to the seam at the bottom edge of the waterproof cover and conduct a water spray test for acceptance.

[0046] Reference Figures 1-10 The opening device in step two includes a vacuum adsorption base 1 with a silicone suction cup, an adsorption mechanism, a leveling mechanism, and an opening mechanism.

[0047] like Figure 2-3As shown, in order to achieve negative pressure adsorption and fixation with the metal roof, the adsorption mechanism is located on the outer surface of the vacuum adsorption base 1 and achieves negative pressure adsorption and fixation with the metal roof. The adsorption mechanism includes a negative pressure sensor 22, which monitors and provides feedback on the adsorption stability of the vacuum adsorption base 1 by real-time monitoring of the negative pressure value.

[0048] Specifically, to prevent vibration from damaging the seal between the suction cup and the roof and to ensure continuous and stable adsorption, the adsorption mechanism also includes a support frame 2 with a buffer layer. The support frame 2 is fixedly installed on the upper surface of the vacuum adsorption base 1. An alarm 21 is fixedly installed on the left side of the support frame 2, and a negative pressure sensor 22 is fixedly installed on the air inlet pipe of the vacuum adsorption base 1. The support frame 2 and the vacuum adsorption base 1 are fixedly installed together, and the mounting surfaces of both are provided with a buffer layer to effectively prevent the vibration of the leveling mechanism on the support frame 2 from being transmitted to the vacuum adsorption base 1, thus preventing vibration from damaging the seal between the suction cup and the roof and ensuring continuous and stable adsorption. 1. When used with silicone suction cups, the equipment can be fixed without nailing or placing heavy objects on the roof. It is fixedly installed with the alarm 21 through the support frame 2. The alarm 21 can receive the signal from the negative pressure sensor 22 and issue an audible and visual alarm when the suction force is insufficient, so as to provide intuitive safety warnings, make up for the limited field of vision in high-altitude operations, and ensure that operators can find hidden dangers and take measures at the first time. The negative pressure sensor 22 is directly set on the air intake passage to detect pressure changes. Compared with the installation inside the cavity, the pipeline installation is more sensitive and can more accurately reflect the suction status of the vacuum system, avoiding misjudgment caused by uneven pressure in dead corners inside the cavity.

[0049] like Figure 4-5 As shown, in order to level the opening mechanism, the leveling mechanism is located on the upper surface of the vacuum adsorption base 1 and levels the opening mechanism. The leveling mechanism includes a tilt sensor 41, which automatically controls the horizontal attitude of the opening mechanism by detecting tilt angle data.

[0050] Specifically, in order to serve as the power source for the leveling mechanism and provide linear telescopic motion, the leveling mechanism also includes a leveling electric push rod 3. The leveling electric push rod 3 is fixedly installed on the inner wall of the groove of the support frame 2. The leveling electric push rod 3 is fixedly installed on the inner wall of the groove of the support frame 2 and is installed in a hidden manner using the internal space of the support frame 2. It serves as the power source for the leveling mechanism and provides linear telescopic motion, thereby achieving micron-level adjustment and meeting the verticality requirements of high-precision openings.

[0051] Specifically, to convert the linear motion of the push rod into smooth angle adjustment of the support plate 4 and ensure a smooth and uninterrupted leveling process, one end of the telescopic rod of the leveling electric push rod 3 is hinged to the support plate 4 with a shock-absorbing layer via a hinge seat. One end of the rotating rod of the support plate 4 is rotatably connected to the inner wall of the groove in the support frame 2 via a bearing. The tilt sensor 41 is fixedly installed on the shock-absorbing layer of the support plate 4 with fastening bolts. The hinge between the telescopic rod of the leveling electric push rod 3 and the support plate 4 allows the support plate 4 to swing at an angle during the extension and retraction of the push rod, eliminating motion interference caused by rigid connections. This converts the linear motion of the push rod into smooth angle adjustment of the support plate 4, ensuring a smooth leveling process. The process is smooth and without any jamming. The rotational connection between the end of the support plate 4 and the support frame 2 establishes the rotation center axis of the support plate 4. Together with the hinge end of the leveling electric push rod 3, it forms a stable linkage mechanism, ensuring that the support plate 4 is subjected to uniform force during the adjustment process. The mechanical structure is stable and reliable. The shock-absorbing layer further filters and absorbs high-frequency vibrations from the opening mechanism, protecting the precision sensor and leveling electric push rod 3 installed on the support plate 4. It prevents vibration from causing fasteners to loosen or electronic components to be damaged, thus extending the service life of the equipment. The tilt sensor 41 is installed on the shock-absorbing layer of the support plate 4 to directly detect the actual horizontal state of the support plate 4, ensuring that the leveling result is accurate.

[0052] like Figure 6-10 As shown, in order to drill the metal roof, the drilling mechanism is located on the upper surface of the leveling mechanism and drills the metal roof. The drilling mechanism includes a hollow drill rod 8, which performs annular cutting and drilling on the metal roof by pressing down and rotating.

[0053] Specifically, in order to establish a rigid connection auxiliary support point between the support frame 5 and the support frame 2, and to prevent the support frame 5 from shaking or deforming during heavy drilling, the drilling mechanism also includes a support frame 5. The support frame 5 is fixedly installed on the shock-absorbing layer of the support plate 4 by fastening bolts. One end of the support rod of the support frame 5 is fixedly installed on the right side of the support frame 2. The support frame 5 and the support plate 4 are fixed to the shock-absorbing layer by fastening bolts. The bolt connection is easy to disassemble and install, and facilitates later maintenance. The shock-absorbing layer continues to play a shock-absorbing role and protects the drive mechanism on the support frame 5. By fixing the support rod of the support frame 5 to the right side of the support frame 2, a rigid connection auxiliary support point is established between the support frame 5 and the support frame 2, preventing the support frame 5 from shaking or deforming during heavy drilling, and ensuring the coaxiality and stability of the drilling position.

[0054] Specifically, in order to drive the drilling mechanism to perform vertical feed motion, a lifting electric push rod 6 is fixedly installed at the top of the support frame 5. A lifting frame 61 is fixedly installed at one end of the telescopic rod of the lifting electric push rod 6. The slider of the lifting frame 61 rolls with the support rod guide rail of the support frame 5 through rollers. The support frame 5 is fixedly installed with the lifting electric push rod 6, and the lifting electric push rod 6 is fixedly installed with the lifting frame 61 to drive the drilling mechanism to perform vertical feed motion. The rolling cooperation between the lifting frame 61 and the guide rail of the support frame 5 guides and constrains the lifting frame 61, ensuring that the drill rod always moves vertically during the feed process, without radial wobble, and improving the surface finish of the hole wall.

[0055] Specifically, in order to drive the drill shank 71 to rotate, a motor 7 is fixedly installed inside the lifting frame 61. The output shaft of the motor 7 is rotatably connected to the bottom groove of the lifting frame 61 through a bearing. The output shaft of the motor 7 is fixedly installed on the drill shank 71, which is rotatably connected to the lower surface of the lifting frame 61 through a bearing. The rotatable connection between the output shaft of the motor 7 and the lifting frame 61 ensures the stability of the rotation of the output shaft of the motor 7. The fixed installation of the motor 7 and the drill shank 71 drives the drill shank 71 to rotate. The drill shank 71 and the lifting frame 61 are rotatably connected through a bearing, which together with the upper bearing forms a double bearing support structure, significantly improving the radial stiffness of the drill shank 71. When penetrating a metal roof, it can effectively resist the cutting reaction force, prevent the drill rod from swinging, and ensure accurate drilling dimensions.

[0056] Specifically, to allow for drill bit replacement according to different hole diameter requirements, the hollow drill rod 8 is slidably inserted into the groove of the drill shank 71. A fixing bolt 81 is threaded into both the threaded hole of the hollow drill rod 8 and the threaded hole of the drill shank 71, and is secured by a nut. This sliding insertion between the hollow drill rod 8 and the drill shank 71 enables rapid positioning and torque transmission of the drill rod. The groove structure utilizes geometric fit to transmit rotational torque, ensuring accurate positioning without the need for tedious alignment. The sliding insertion method allows for quick assembly and disassembly of the drill rod, facilitating drill bit replacement according to different hole diameter requirements. The hollow drill rod 8 and the drill shank 71 are connected by the same fixing bolt 81. The nut threaded connection and tightening achieve axial locking of the drill rod. The bolt passes through the threaded hole of the drill shank 71 and the drill rod, and is tightened with the nut to form a solid mechanical lock, which effectively resists axial tension and high-frequency vibration during drilling, completely eliminating drill rod detachment accidents. The connection is reliable and it is easy to replace the drill rod separately after wear, reducing consumable costs. The hollow drill rod 8 performs ring cutting by pressing down and rotating, removing only the hole wall material. Compared with solid drill bits, the hollow drill rod 8 has low cutting resistance and low torque, has little impact on the deformation of thin-walled metal plates, and the generated chips are ring-shaped or short pieces, which are easy to collect and process, resulting in high construction efficiency.

[0057] Working principle: Manually clean the dust, oil and debris from the surface of the metal roof panel to ensure a smooth and clean surface. Based on the design drawings, use measuring tools to determine the center position of the steel column penetration point and pop out the cutting outline as a reference for equipment installation.

[0058] The operator moves the drilling equipment to the measurement and layout position, aligns the hollow drill rod 8 with the center of the outline, starts the vacuum pump control system, and the control system turns on the vacuum generator to perform vacuuming operation on the vacuum adsorption base 1. The negative pressure sensor 22 installed on the air inlet pipe collects the pressure data in the pipe in real time and transmits it to the main control module of the control system. When the negative pressure value reaches the preset safety threshold, the main control module determines that the adsorption is stable and the equipment enters the standby state. If the negative pressure value is lower than the threshold, the control system immediately drives the alarm 21 to issue an audible and visual alarm, prompting the operator to check the sealing or reposition the equipment to prevent it from falling from a height.

[0059] After successful adsorption and fixation, the operator activates the automatic leveling function via the control panel. The tilt sensor 41, installed on the shock-absorbing layer of the support plate 4, detects the current tilt angle of the support plate 4 relative to the horizontal plane. The tilt sensor 41 transmits the angle deviation signal to the main control module. The main control module performs PID algorithm calculations and outputs control commands to the leveling electric push rod 3. The leveling electric push rod 3 then performs telescopic movement according to the commands. One end of the push rod pushes or pulls the support plate 4 through the hinge seat. The support plate 4 rotates around the rotating rod and bearing structure at one end. During the adjustment process, the tilt sensor 41 continuously provides feedback on the angle change until the support plate 4 reaches a horizontal position. The leveling electric push rod 3 then stops moving, and the leveling is complete. At this point, the axis of the opening mechanism installed on the support plate 4 is perpendicular to the horizontal plane.

[0060] After the operator confirms that the leveling is complete, the drilling command is initiated. The control system drives the motor 7, installed inside the lifting frame 61, to rotate at high speed. The output shaft of the motor 7 drives the drill shank 71 and the hollow drill rod 8 to rotate synchronously. The lifting electric push rod 6, installed at the top of the support frame 5, is activated, pushing the lifting frame 61 to move vertically downward along the support rod guide rail of the support frame 5. The slider of the lifting frame 61 rolls with the guide rail through rollers to ensure a smooth and unbiased downward pressing process. The drill shank 71 is supported by bearings at both the top and bottom to ensure high rigidity. The high-speed rotating hollow drill rod 8 contacts the metal roof panel and performs circular cutting. Because the drill rod has a hollow structure, the cutting resistance is small, and the central waste is automatically discharged. After the hole is drilled through, the lifting electric push rod 6 automatically retracts and resets, the motor 7 stops, the operator turns off the vacuum pump, opens the pressure relief valve to eliminate the negative pressure, and moves the equipment away from the work site.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A waterproofing construction method for steel columns penetrating a metal roof, characterized in that: Step 1: Measurement and layout: Clean debris from the surface of the metal roof panel, determine the penetration point of the steel column, and mark the cutting outline; Step 2: Drilling holes: Use drilling equipment to drill through holes along the outline of the metal roof panel to collect cutting debris; Step 3: Edge treatment: Use a deburring device to smooth the edges of the hole walls and apply an anti-rust coating; Step 4: Install the sleeve: Place the bottom waterproof sleeve over the outside of the steel column and weld it to the upper surface of the metal roof panel; Step 5: Filling and sealing: Fill the annular gap between the steel column and the bottom waterproof sleeve with flexible waterproof sealant; Step Six: Install the pressure cover: Fit the upper waterproof cover onto the outside of the steel column and use a clamping device to press it firmly against the roof panel; Step 7: Edge sealing acceptance: Apply weather-resistant sealant to the seam at the bottom edge of the waterproof cover and conduct a water spray test for acceptance.

2. The waterproofing construction method for steel columns penetrating a metal roof according to claim 1, characterized in that: The opening device in step two includes a vacuum adsorption base (1) with a silicone suction cup, an adsorption mechanism, a leveling mechanism, and an opening mechanism. The adsorption mechanism is located on the outer surface of the vacuum adsorption base (1) and is fixed to the metal roof by negative pressure adsorption. The adsorption mechanism includes a negative pressure sensor (22). The negative pressure sensor (22) monitors and provides feedback on the adsorption stability of the vacuum adsorption base (1) by real-time monitoring of the negative pressure value. The leveling mechanism is located on the upper surface of the vacuum adsorption base (1) and levels the opening mechanism. The leveling mechanism includes a tilt sensor (41). The tilt sensor (41) automatically controls the horizontal attitude of the opening mechanism by detecting tilt angle data. The hole-opening mechanism is located on the upper surface of the leveling mechanism and performs drilling on the metal roof. The hole-opening mechanism includes a hollow drill rod (8), which performs annular cutting and hole-opening on the metal roof by pressing down and rotating.

3. A waterproofing construction method for steel columns penetrating a metal roof according to claim 2, characterized in that: The adsorption mechanism also includes a support frame (2) with a buffer layer. The support frame (2) is fixedly installed on the upper surface of the vacuum adsorption base (1). An alarm (21) is fixedly installed on the left side of the support frame (2). The negative pressure sensor (22) is fixedly installed on the air inlet pipe of the vacuum adsorption base (1).

4. A waterproofing construction method for steel columns penetrating a metal roof according to claim 3, characterized in that: The leveling mechanism also includes a leveling electric push rod (3), which is fixedly installed on the inner wall of the groove of the support frame (2).

5. A waterproofing construction method for steel columns penetrating a metal roof according to claim 4, characterized in that: The telescopic rod of the leveling electric push rod (3) is hinged to a support plate (4) with a shock-absorbing layer through a hinge seat. The rotating rod of one end of the support plate (4) is rotatably connected to the inner wall of the groove of the support frame (2) through a bearing. The tilt sensor (41) is fixedly installed on the shock-absorbing layer of the support plate (4) by fastening bolts.

6. A waterproofing construction method for steel columns penetrating a metal roof according to claim 5, characterized in that: The opening mechanism also includes a support frame (5), which is fixedly installed on the shock-absorbing layer of the support plate (4) by fastening bolts. One end of the support rod of the support frame (5) is fixedly installed on the right side of the support frame (2).

7. A waterproofing construction method for steel columns penetrating a metal roof according to claim 6, characterized in that: The top of the support frame (5) is fixedly installed with a lifting electric push rod (6), and a lifting frame (61) is fixedly installed at one end of the telescopic rod of the lifting electric push rod (6). The slider of the lifting frame (61) rolls with the support rod guide rail of the support frame (5) through rollers.

8. A waterproofing construction method for steel columns penetrating a metal roof according to claim 7, characterized in that: A motor (7) is fixedly installed inside the lifting frame (61). The output shaft of the motor (7) is rotatably connected to the bottom groove of the lifting frame (61) through a bearing. A drill shank (71) is fixedly installed on the output shaft of the motor (7). The drill shank (71) is rotatably connected to the lower surface of the lifting frame (61) through a bearing.

9. A waterproofing construction method for steel columns penetrating a metal roof according to claim 8, characterized in that: The hollow drill rod (8) is slidably inserted into the groove of the drill shank (71). The threaded hole of the hollow drill rod (8) and the threaded hole of the drill shank (71) are connected by a fixing bolt (81) and are tightened by a nut.

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