A plugging device and method for frost heaving and water leakage of a large-span building roof in a cold region

Abstract

A kind of plugging device and method for frost heaving leakage of large-span building roof in cold region, comprising shell, barrier component, baffle, electric grinder, electric telescopic rod, electric moving table and collection tank;Electric moving table, electric control lifting rod, electric grinder, baffle and collection tank are arranged in shell, fixed part of electric moving table is installed at the bottom of shell, electric grinder is installed on the movable part of electric telescopic rod, collection tank is arranged on the inner wall of shell and is adjacent to electric grinder, the upper part of electric grinder is provided with baffle, one side of baffle is rotatably arranged on the inner wall of shell, the other side of baffle can be placed on the top of collection tank, barrier component for grouting is movably arranged at the opening of shell.Method steps: device installation;Concrete crack polishing;Concrete crack cleaning;Crack grouting and material setting.This application can be used for the repair of roof frost heaving leakage, improve construction efficiency.

Description

Technical Field

[0001] This invention relates to a building roof repair device, specifically to a sealing device and method for water leakage caused by frost heave in large-span buildings in cold regions. Background Technology

[0002] The roofs of large-span buildings in cold regions often have irregular cracks caused by frost, and their height and shape are unsuitable for people to work on the roof. Furthermore, the existing manual handheld devices used for construction are labor-intensive, time-consuming, and cannot effectively repair the damage.

[0003] For irregular cracks caused by large-span roofs, existing handheld repair devices have the following problems:

[0004] 1. Insufficient precision in treating existing cracks. Current methods mostly involve drilling into cracks. Cracks are often large, narrow, and irregular, making manual, subjective judgment and handheld drilling repairs lacking in precision.

[0005] 2. Insufficient cleaning or lack of a cleaning process leads to a decrease in the viscosity of the repair material, greatly reducing the repair effect.

[0006] Publication No.: CN102561992A, a deformable water stopper and the grouting sealing process using the deformable water stopper are disclosed. The grouting sealing technology process includes drilling, cleaning, grouting and washing. Since the drill bit is a dotted circular shape, it is only suitable for holes and not suitable for irregular long cracks in large-span buildings. Summary of the Invention

[0007] To overcome the limitations of existing technologies, this invention provides a sealing device and method for preventing water leakage due to frost heave in the roofs of large-span buildings in cold regions.

[0008] A sealing device for frost heave and leakage of roofs in large-span buildings in cold regions includes a shell, a barrier component, a baffle, an electric grinder, an electric telescopic rod, an electric moving platform, and a collection trough. The electric moving platform, the electrically controlled lifting rod, the electric grinder, the baffle, and the collection trough are arranged inside the shell. The fixed part of the electric moving platform is installed at the bottom of the shell. The electric telescopic rod is vertically installed on the moving part of the electric moving platform. The electric grinder is installed on the movable part of the electric telescopic rod. The collection trough is arranged on the inner wall of the shell and adjacent to the electric grinder. A baffle is installed above the electric grinder. One side of the baffle is rotatably mounted on the inner wall of the shell, and the other side of the baffle can rest on the top of the collection trough. A barrier component for grouting is movably installed at the opening of the shell.

[0009] A sealing method for sealing devices used to prevent frost heave and leakage in the roofs of large-span buildings in cold regions, comprising:

[0010] (1) Installation of the device: First, align the device along the center line at the crack in the roof and fix it with expansion bolts.

[0011] (2) Grinding concrete cracks: Start construction. The electric grinder is raised by the extension of the electric telescopic rod, which lifts the baffle and grinds the concrete around the crack. The grinding depth is always less than the radius of the grinding wheel. At the same time, the electric grinder moves along the crack direction under the action of the electric moving platform. The concrete debris falls into the collection tank. After grinding is completed, the electric grinder is retracted under the baffle.

[0012] (3) Cleaning concrete cracks: Move the barrier component to the grinding area, connect the hose to the external water pump, open the electric valve, pump clean water into the crack to clean the grinding groove, after cleaning, close the electric valve, after the barrier plate is put back into place, the sewage falls into the collection tank, and the crack cleaning work is completed. Before grouting, it is necessary to wait for the moisture to dry completely.

[0013] (4) Crack grouting: the barrier plate and hose move along the slide rail to the crack, the hose is connected to the external mortar mixing tank, and the quick-setting mortar is pumped into the crack.

[0014] (5) When the material sets, the barrier plate remains in place to keep the grout set in the crack. The setting time is at least 4 hours. The device can be removed only after the concrete has dried completely and has reached a certain strength. The sealing operation is then complete.

[0015] The advantages of this invention compared to the prior art are:

[0016] This invention combines the processes of grooving, cleaning, sealing, and concrete pumping—originally used in sealing roof frost heave leaks—into a single device, improving construction efficiency. The invention employs a semi-automatic approach, reducing the technical complexity required to complete the process. By precisely positioning and repairing cracks in small, segmented units, and cleaning away old materials while injecting repair material to increase adhesion, this electrically powered, semi-automatic small-scale repair machine enables unmanned repair of large-span roofs. It effectively solves the problem of repairing roof frost heave leaks, simplifies the process, and reduces overall labor costs.

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments: Attached Figure Description

[0018] Figure 1 This is a main sectional view of the present invention;

[0019] Figure 2 This is a schematic diagram of the barrier component.

[0020] Figure 3 This is a schematic diagram of the structure of the electric mobile station. Detailed Implementation

[0021] See Figures 1-3 As shown, this embodiment of a sealing device for frost heave and water leakage of roofs of large-span buildings in cold regions includes a shell 1, a barrier component 15, a baffle 8, an electric grinder 9, an electric telescopic rod 11, an electric moving platform 13, and a collection trough 14.

[0022] The outer casing 1 is equipped with an electric moving platform 13, an electric lifting rod 11, an electric grinding wheel 9, a baffle 8, and a collection trough 14. The fixed part of the electric moving platform 13 is installed at the bottom of the outer casing 1. The electric telescopic rod 11 is vertically installed on the moving part of the electric moving platform 13. The electric grinding wheel 9 is installed on the movable part of the electric telescopic rod 11. The collection trough 14 is arranged on the inner wall of the outer casing 1 and is adjacent to the electric grinding wheel 9. A baffle is provided on the upper part of the electric grinding wheel 9. One side of the baffle 8 is rotatably installed on the inner wall of the outer casing 1, and the other side of the baffle 8 can rest on the top of the collection trough 14. A barrier component 15 for grouting is movably provided at the opening of the outer casing 1.

[0023] Furthermore, such as Figure 2 As shown, the barrier assembly 15 includes a barrier plate 5, a hose 3, an electric valve 4, two slide rails 6 and four pulleys 2; the two slide rails 6 are arranged side by side and installed at the open end of the housing 1, the length direction of the slide rail 1 is perpendicular to the length direction of the electric telescopic rod 11, and two pulleys 2 are slidably arranged on each slide rail 6, and the four pulleys 2 are automatically screwed onto the barrier plate 5.

[0024] Optionally, the electric telescopic rod 11 is an electric push rod, the piston rod end of the electric push rod is connected to the fixed end of the electric grinder, and the fixed part of the electric push rod is fixed on the moving part of the electric moving table 13.

[0025] like Figure 3 As shown, the electric moving table 13 includes a guide rail 13-1, a slider 13-2, a support plate 13-3, a motor, and a lead screw assembly. The motor is installed at the bottom of the housing 1, and its output end is connected to the lead screw of the lead screw assembly. The lead screw is rotatably installed at the bottom of the housing 1. The support plate 13-3 is fixed to the nut of the lead screw assembly. The two sides of the support plate 13-3 are slidably mounted on the guide rail 13-1 via the slider 13-2. The guide rail 13-1 is installed side by side at the bottom of the housing 1, parallel to the lead screw. The fixed part of the electric push rod is installed on the support plate 13-3. The grinding wheel is fixed to the top of the electric telescopic rod through a protective cover, realizing rotation about the horizontal axis to drill kerf. The electric moving table 13 is an effective device for achieving flat cutting and movement of the grinding wheel. Guide rail 13-1 is fixed to the bottom of housing 1. Two sliders 13-2 are mounted on each guide rail 13-1 and can slide along the guide rail 13-1. The main body of the telescopic grinding wheel and motor assembly moves on the guide rail 13-1 via the sliders 13-2. Guide rail 13-1 is perpendicular to slide rail 6.

[0026] The side wall of the outer casing 1 is also provided with a transparent observation window 7. Construction personnel can observe and monitor through the transparent observation window 7. Optionally, the transparent observation window 7 is an acrylic sheet.

[0027] Based on the above embodiments, a sealing method for sealing devices used to prevent frost heave and leakage in the roofs of large-span buildings in cold regions is also provided. The steps of this method are as follows:

[0028] (1) Installation of the device: First, align the device along the center line at the crack in the roof and fix it with expansion bolts.

[0029] (2) Grinding concrete cracks: Construction begins. The electric grinder 9 is raised by the extension of the electric telescopic rod 11, which lifts the baffle 8 and grinds the concrete around the crack. The grinding depth is always less than the radius of the grinding wheel. At the same time, the electric grinder 9 moves along the crack direction under the action of the electric moving platform 13. The concrete debris falls into the collection tank 14. After grinding is completed, the electric grinder 9 is retracted under the baffle 8.

[0030] (3) Cleaning concrete cracks: the barrier component 15 is moved to the grinding area, the hose 3 is connected to the external water pump, the electric valve 4 is opened, and clean water is pumped into the crack to clean the grinding groove. After cleaning, the electric valve 4 is closed, the barrier plate 5 is returned to its position, and the sewage falls into the collection tank 14. The crack cleaning work is completed. Before grouting, it is necessary to wait at least 2 hours for the moisture to dry completely.

[0031] (4) Crack grouting: the barrier plate 5 and the hose 3 move along the slide rail 6 to the crack. The hose 3 is connected to the external mortar mixing tank. The quick-setting mortar is pumped into the crack.

[0032] (5) Material setting: The barrier plate 5 remains in place to keep the grout setting in the crack. The setting time is at least 4 hours. The device can be removed only after the concrete is completely dry and has a certain strength. The sealing operation is then complete.

[0033] The present invention has been disclosed above with reference to preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention, and all such modifications or alterations shall still fall within the scope of the present invention.

Claims

1. A sealing device for water leakage due to frost heave in the roof of large-span buildings in cold regions, characterized in that: The device comprises a shell (1), a blocking assembly (15), a baffle (8), an electric grinder (9), an electric telescopic rod (11), an electric moving platform (13) and a collecting groove (14); The electric moving platform (13), the electric telescopic rod (11), the electric grinder (9), the baffle (8) and the collecting groove (14) are arranged in the shell (1), the fixed part of the electric moving platform (13) is mounted at the bottom of the shell (1), the electric telescopic rod (11) is vertically mounted on the moving part of the electric moving platform (13), the electric grinder (9) is mounted on the movable part of the electric telescopic rod (11), the collecting groove (14) is arranged on the inner wall of the shell (1) and is arranged adjacent to the electric grinder (9), the upper part of the electric grinder (9) is provided with the baffle, one side of the baffle (8) is rotatably arranged on the inner wall of the shell (1), the other side of the baffle (8) can be placed on the top of the collecting groove (14), and the blocking assembly (15) for grouting is movably arranged at the opening of the shell (1); the blocking assembly (15) comprises a blocking plate (5), a hose (3), an electric valve (4), two slide rails (6) and four pulleys (2); the two slide rails (6) are arranged side by side and mounted at the opening end of the shell (1), the length direction of the slide rail (6) is perpendicular to the length direction of the electric telescopic rod (11), two pulleys (2) are slidably arranged on each slide rail (6), and the four pulleys (2) are automatically screw-mounted on the blocking plate (5).

2. The freezing heave leakage blocking device for the large-span building roof in cold regions according to claim 1, characterized in that: The electric telescopic rod (11) is an electric push rod, the piston rod end of the electric push rod is connected with the fixed end of the electric grinder, and the fixed part of the electric push rod is fixed on the moving part of the electric moving platform (13).

3. The freezing heave leakage blocking device for long-span building roof in cold region according to claim 2, characterized in that: The electric moving platform (13) comprises a guide rail (13-1), a sliding block (13-2), a support plate (13-3), a motor and a screw rod pair; The motor is mounted at the bottom of the shell (1), the output end of the motor is connected with the screw rod of the screw rod pair, the screw rod is rotatably mounted at the bottom of the shell (1), the support plate (13-3) is fixedly connected with the nut of the screw rod pair, the support plate (13-3) is slidably arranged on the guide rail (13-1) through the sliding block (13-2) on the two sides of the support plate (13-3), the guide rail (13-1) is mounted side by side at the bottom of the shell (1), the guide rail (13-1) is parallel to the screw rod, and the fixed part of the electric push rod is mounted on the support plate (13-3).

4. The freezing heave and water leakage blocking device for long-span building roof in cold region according to claim 3, characterized in that: The side wall of the shell (1) is further provided with a transparent observation window (7).

5. A method for plugging the plugging device against frost heaving leakage of a large-span building roof in cold regions according to any one of claims 1-4, characterized in that: The method steps comprise: (1) Device installation: first, the device is located at the roof crack along the center line, and expansion bolts are used for fixation; (2) Concrete crack polishing: the construction is started, the electric grinder (9) is lifted through the elongation of the electric telescopic rod (11), the baffle (8) is lifted, the surrounding concrete of the crack is polished, the polishing depth is always less than the radius of the grinding wheel, at the same time, the electric grinder (9) moves along the crack direction under the action of the electric moving platform (13), the concrete debris falls into the collecting groove (14), and after the polishing is completed, the electric grinder (9) is received below the baffle (8). (3) Cleaning of the concrete cracks, the blocking assembly (15) moves to the polishing position, the hose (3) is connected to the water pump outside, the electric valve (4) is opened, and the clean water is pumped into the cracks to clean the polishing groove. After the cleaning is completed, the electric valve (4) is closed, the blocking plate (5) is returned to the original position, the sewage falls into the collecting tank (14), and the cleaning of the cracks is completed. Before grouting, at least 2h is required to wait for the water to completely dry; (4) Grouting of the cracks, the blocking plate (5) and the hose (3) move to the crack position along the slide rail (6), the hose (3) is connected to the external mortar mixing tank, and the pump is used to pump the rapid-setting mortar into the cracks; (5) Material setting, the blocking plate (5) remains in position to keep the grouting in the cracks to set, the setting time is at least 4h, and after the concrete is completely dried and has a certain strength, the device can be disassembled, and the plugging operation is completed.

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