Building floor hole sealing device and construction method

Abstract

This invention relates to the field of building engineering technology, specifically to a device and construction method for sealing floor slab openings. It includes a support plate, a sleeve, a lifting rod, and a cover plate. A driving device is installed inside the support plate. The sleeve is a hollow cylindrical structure, with its lower end connected to the support plate. The lifting rod is vertically adjustable and inserted into the sleeve, with its lower end passing through the upper walls of the sleeve and the support plate, and connecting to the driving device. Its upper end is connected to the cover plate. The device is simple to operate, and the automated drive of the cover plate greatly reduces the workload of construction workers. When concrete sealing of floor slab openings is required, this invention can also act as a template to ensure the quality of the sealing, making it highly valuable for widespread application.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a sealing device and construction method for floor openings in buildings. Background Technology

[0002] In industrial or commercial buildings, openings are typically made in the building floor slabs to transport raw materials or finished products, enabling rapid material transfer within the building and improving production efficiency. At the same time, these openings can also be used for measuring and locating building wiring, helping construction workers accurately determine the position of building components and ensuring construction quality and accuracy.

[0003] For safety during construction, openings are typically sealed with covers when material transport or wiring is not required. This prevents workers from accidentally stepping into the openings and causing safety hazards. However, if openings are directly sealed with covers, they must be removed before wiring or material transport can begin, and then resealed afterward. This frequent removal and installation of covers requires manual operation with tools, which can lead to injury or damage to the covers if done improperly, and significantly reduces construction efficiency. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a sealing device and construction method for building floor openings. Compared with traditional sealing devices, the device of this invention is simple to operate and drives the cover plate in an automated manner, which can greatly reduce the workload of construction personnel. When concrete sealing of floor openings is required, this invention can also act as a template to ensure the quality of floor opening sealing.

[0005] The technical solution of this invention is: a device for sealing openings in building floor slabs, comprising:

[0006] A support plate, wherein a drive device is installed inside the support plate;

[0007] A sleeve, wherein the sleeve is a hollow cylindrical structure and its lower end is connected to the support plate;

[0008] A lifting rod, which is vertically adjustable and inserted into the sleeve, with its lower end passing through the upper surface wall of the sleeve and the support plate in sequence, and connected to the driving device;

[0009] A cover plate, which is connected to the upper end of the lifting rod.

[0010] According to the present invention, a building floor slab opening sealing device includes a driving device comprising a power supply, a first motor, a rotating rod, a first gear, a second gear, and a threaded screw. The power supply is electrically connected to the first motor; the output end of the first motor is connected to the rotating rod; the rotating rod is connected to the second gear; the second gear meshes with the first gear; the first gear is connected to the threaded screw; and the upper end of the threaded screw passes through the first gear and is connected to the lifting rod.

[0011] According to the present invention, a building floor slab opening sealing device is provided, wherein a clearance component is installed on both the cover plate and the support plate; a snap-fit ​​component is installed at both ends of the bottom end of the support plate; a pull wire component is connected to the opening edge of the clearance component on the bottom end of the cover plate; and a detection component is installed at the bottom end of the support plate.

[0012] According to the present invention, a building floor slab opening sealing device includes a clearance component comprising a clearance opening, a first groove, a first electric telescopic rod, and a baffle. The clearance opening is formed through the cover plate and the support plate, and their positions are vertically opposite to each other. The first groove is formed on the side wall of the clearance opening. The fixed end of the first electric telescopic rod is connected to the side wall of the first groove, and the telescopic end is connected to the baffle. The side wall of the baffle contacts the inner wall of the clearance opening and can be received within the first groove by the first electric telescopic rod.

[0013] According to the present invention, a sealing device for a building floor opening includes a second groove, a second electric telescopic rod, a locking plate, a round rod, and a sealing plate. The second groove is formed at both ends of the bottom of the support plate. The fixed end of the second electric telescopic rod is connected to the upper wall of the second groove, and the telescopic end is connected to the locking plate. The round rod is rotatably connected to the side wall of the second groove through a first torsion spring, and its rod wall is connected to the sealing plate.

[0014] According to the present invention, a building floor slab opening sealing device includes a pull wire assembly comprising a housing, a connecting plate, a second torsion spring, a winding rod, an L-shaped plate, a mounting plate, a stop block, and a pull wire; the housing is fixedly connected to the bottom end of the cover plate, and has a strip-shaped opening at its lower end; the connecting plate is vertically connected to the inner wall of the housing; one end of the winding rod passes through the connecting plate and can rotate around its own axis, and the other end is connected to the inner wall of the housing through the second torsion spring; two L-shaped plates are symmetrically and invertedly fixedly connected to the support plate below the housing; the stop block is connected to the side walls of the two L-shaped plates through a third torsion spring; one end of the pull wire is fixed to the winding rod, and the other end passes through the strip-shaped opening and is connected to the mounting plate; the mounting plate is located below the wing of the L-shaped plate.

[0015] According to the present invention, a building floor slab opening sealing device includes a pull-wire assembly further comprising a power mechanism: a second motor, a transmission rod, a third electric telescopic rod, a first magnet, and a second magnet. The second motor is connected to the outer wall of the housing at the end away from the winding rod. One end of the transmission rod passes through the housing and is connected to the output end of the second motor, and the other end is connected to the third electric telescopic rod. The fixed end of the electric telescopic rod is connected to the transmission rod, and the telescopic end is connected to the second magnet. The first magnet is connected to the end of the winding rod that passes through the connecting plate.

[0016] According to the present invention, a sealing device for openings in building floor slabs includes a detection component comprising a third groove, a pressure sensor, a support spring, and a float plate. The third groove is formed at the bottom end of the support plate. The pressure sensor is connected to the upper wall of the third groove. One end of the support spring is connected to the pressure sensor, and the other end is connected to the float plate.

[0017] According to the present invention, a sealing device for a building floor opening is provided, wherein a smoke detector and an alarm are connected to the bottom end of the cover plate, and the alarm is electrically connected to the smoke detector.

[0018] According to the present invention, a sealing device for openings in building floor slabs is provided, wherein a warning light strip is connected to the outer wall of the sleeve.

[0019] The present invention also provides a construction method for a building floor slab opening sealing device, the construction method being applicable to any of the building floor slab opening sealing devices described above, comprising the following steps:

[0020] Place the support plate: Place the support plate above the floor opening to cover the floor opening;

[0021] Start the drive device: Start the drive device to drive the lifting rod to rotate and move upward, which in turn drives the cover plate to move upward. When the cover plate contacts the upper building floor slab, turn off the drive device.

[0022] Activate the snap-fit ​​assembly: Activate the second electric telescopic rod, which drives the snap-fit ​​plate to move downward, so that the round rod overcomes the elastic force of the first torsion spring and drives the sealing plate to rotate, further driving the snap-fit ​​plate to move downward and extend out of the second groove, so that the side wall of the snap-fit ​​plate abuts against the inner wall of the floor opening, thereby preventing the support plate from shifting laterally, completing the fixation of the support plate, and achieving the sealing of the floor opening;

[0023] Disassembling the sealing device: Control the second electric telescopic rod to retract, so that the snap-fit ​​plate returns to its initial position. At the same time, control the drive device to make the lifting rod rotate in the opposite direction and descend, driving the cover plate to move downward and away from the upper floor slab. Finally, remove the entire device to disassemble the sealing device.

[0024] The advantages of this application are:

[0025] 1. The device, through its snap-fit ​​assembly, first motor, rotating rod, first gear, and second gear, enables rapid disassembly of the support plate when material transfer is required, reducing the difficulty of operation for workers. Simultaneously, the cover plate supports the upper floor slab, allowing the support plate to stably seal the material transfer port. Furthermore, when concrete is subsequently poured to seal the opening of the material transfer port, the cover plate shields the upper floor slab, facilitating the upper material transfer port to act as a template during concrete pouring, thus improving the device's effectiveness and work efficiency.

[0026] 2. The set-in clearance component and wire pulling component can deliver the wire to the upper layer through the clearance opening when wire needs to be released, reducing the difficulty of wire release operation. At the same time, the wire release work is not affected when the material conveying port is blocked, thus improving the working efficiency and practicality of the device.

[0027] 3. The detection components can detect the concrete pouring process when the material inlet needs to be blocked. After the concrete pouring is completed, the system will remind the staff to finish pouring to prevent excessive concrete pouring that could cause overflow, reduce the pouring effect, and improve the reliability and efficiency of the device. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the present invention from another angle;

[0030] Figure 3 This is a schematic diagram of the structure of the clearance component of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the driving device of the present invention;

[0032] Figure 5 This is a schematic diagram of the detection component of the present invention;

[0033] Figure 6 This is a schematic diagram of the snap-fit ​​assembly of the present invention;

[0034] Figure 7 This is a partial structural cross-sectional view of the draw wire assembly of the present invention;

[0035] Figure 8 This is a partial structural schematic diagram of the drawstring assembly of the present invention;

[0036] The components include: 1. Support plate; 2. Drive device; 3. Threaded screw; 4. Sleeve; 5. Lifting rod; 6. Cover plate; 7. First gear; 8. First motor; 9. Rotating rod; 10. Second gear; 11. Power supply; 12. Clearance assembly; 121. Clearance opening; 122. First groove; 123. First electric telescopic rod; 124. Baffle; 13. Snap-fit ​​assembly; 131. Second groove; 132. Second electric telescopic rod; 133. Snap-fit ​​plate; 134. Round rod; 135. Sealing plate; 14. Pull wire assembly; 141. Outer shell. ; 142. Connecting plate; 143. Second torsion spring; 144. Winding rod; 145. First magnet; 146. Second motor; 147. Transmission rod; 148. Third electric telescopic rod; 149. Second magnet; 1410. L-shaped plate; 1411. Mounting plate; 1412. Strip opening; 1413. Stop block; 1414. Pull wire; 15. Detection assembly; 151. Third groove; 152. Pressure sensor; 153. Support spring; 154. Float plate; 16. Smoke detector; 17. Alarm; 18. Lighting strip. Detailed Implementation

[0037] Embodiments of the present invention are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] This invention relates to a sealing device and construction method for floor slab openings. Compared with traditional sealing devices, the device of this invention is simple to operate and uses an automated method to drive the cover plate, which can greatly reduce the workload of construction personnel. When concrete sealing is required for floor slab openings, this invention can also act as a template to ensure the quality of the floor slab opening sealing.

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0042] A device for sealing openings in building floor slabs, specifically, such as... Figure 1 As shown, it includes a support plate 1, a sleeve 4, a lifting rod 5, and a cover plate 6. The support plate 1 is equipped with a drive device 2. The sleeve 4 is a hollow cylindrical structure, and its lower end is connected to the support plate 1. The lifting rod 5 is vertically adjustable and inserted into the sleeve 4. Its lower end passes through the upper surface wall of the sleeve 4 and the support plate 1 in sequence, and is connected to the drive device 2. The cover plate 6 is connected to the upper end of the lifting rod 5.

[0043] In actual operation, the support plate 1 is placed above the floor opening to cover the floor opening; the drive device 2 is started to drive the lifting rod 5 to rotate and move upward, which in turn drives the cover plate 6 to move upward. When the cover plate 6 contacts the upper floor slab, the drive device 2 is turned off.

[0044] When removing the sealing device, reverse the drive device 2 to make the lifting rod 5 rotate in the opposite direction and move downward, further driving the cover plate 6 to move downward, so that the cover plate 6 gradually moves away from the upper building floor slab, and finally remove the sealing device.

[0045] In some embodiments, such as Figure 4As shown, the drive device 2 described above has been optimized. In this embodiment, the drive device 2 includes a power supply 11, a first motor 8, a rotating rod 9, a second gear 10, a first gear 7, and a threaded screw 3. The power supply 11 is electrically connected to the first motor 8; the output end of the first motor 8 is connected to the rotating rod 9; the rotating rod 9 is connected to the second gear 10; the second gear 10 meshes with the first gear 7; the first gear 7 is connected to the threaded screw 3; and the upper end of the threaded screw 3 passes through the first gear 7 and is connected to the lifting rod 5.

[0046] In actual operation, after the drive device 2 is started, the output end of the first motor 8 drives the rotating rod 9 to rotate, the rotating rod 9 drives the second gear 10 to rotate, and at the same time, the first gear 7 also rotates with the rotation of the second gear 10. The first gear 7 drives the threaded screw 3 to rotate, and the rotation of the threaded screw 3 drives the lifting rod 5 to rotate and move up or down.

[0047] In some embodiments, such as Figure 1 , 2 As shown, the cover plate 6 and the support plate 1 have been optimized. In this embodiment, both the cover plate 6 and the support plate 1 are equipped with clearance components 12; both ends of the bottom of the support plate 1 are equipped with snap-fit ​​components 13; a pull wire component 14 is connected to the opening edge of the clearance component 12 at the bottom of the cover plate 6; and a detection component 15 is installed at the bottom of the support plate 1.

[0048] In fact, the function of the clearance component 12 is, after the sealing device is installed, to cooperate with the wire guide component 14 to assist in the line laying work, and to provide an entrance for pouring concrete when sealing the opening. The function of the snap-fit ​​component 13 is to fix the sealing device during installation to prevent the sealing device from shifting due to external forces, which would cause the sealing of the opening to fail. The function of the wire guide component 14 is to assist in the line laying work, making it convenient for construction personnel to lay the line from bottom to top. The detection component 15 is used to detect the completion of concrete pouring when sealing the opening. When the concrete is poured, the detection component 15 will be pressure-sensitive to remind the construction personnel to stop pouring concrete.

[0049] In some embodiments, such as Figure 3 As shown, the clearance component 12 has been optimized. In this embodiment, the clearance component 12 includes a clearance opening 121, a first groove 122, a first electric telescopic rod 123, and a baffle 124. The clearance opening 121 is formed through the cover plate 6 and the support plate 1, and their opening positions are corresponding in the vertical direction. The first groove 122 is formed on the side wall of the clearance opening 121. The fixed end of the first electric telescopic rod 123 is connected to the side wall of the first groove 122, and the telescopic end is connected to the baffle 124. The side wall of the baffle 124 is in contact with the inner wall of the clearance opening 121 and can be received in the first groove 122 by the first electric telescopic rod 123.

[0050] In the default state, the first electric telescopic rod 123 is in the extended state, and the baffle 124 is located in the clearance opening 121 and blocks the clearance opening 121. When it is necessary to cooperate with the wire pulling assembly 14 to assist in the wire laying work, the first electric telescopic rod 123 will switch to the retracted state, and at the same time drive the baffle 124 to move towards the first groove 122, and finally accommodate the baffle 124 in the first groove 122.

[0051] In some embodiments, such as Figure 6 As shown, the snap-fit ​​assembly 13 has been optimized. In this embodiment, the snap-fit ​​assembly 13 includes a second groove 131, a second electric telescopic rod 132, a snap-fit ​​plate 133, a round rod 134, and a sealing plate 135. The second groove 131 is formed at both ends of the bottom of the support plate 1. The fixed end of the second electric telescopic rod 132 is connected to the upper wall of the second groove 131, and the telescopic end is connected to the snap-fit ​​plate 133. The round rod 134 is rotatably connected to the side wall of the second groove 131 through a first torsion spring, and its rod wall is connected to the sealing plate 135.

[0052] In the default state, the second electric telescopic rod 132 is in the retracted state, and the locking plate 133, the round rod 134, and the sealing plate 135 are all housed in the second groove 131. When installing the sealing device, after the support plate 1, the lifting rod 5, and the cover plate 6 are installed in place, the second electric telescopic rod 132 is extended and drives the locking plate 133 to move downward. When the locking plate 133 moves downward, it provides a downward torque to the round rod 134 and the sealing plate 135, causing the round rod 134 to rotate downward around the first torsion spring. When the locking plate 133 is completely moved out of the second groove 131 and contacts the inner wall of the building floor opening, the second electric telescopic rod 132 stops extending and remains extended. When the second electric telescopic rods 132 at both ends of the bottom of the cover plate 6 are all extended, the entire sealing device can be fixed relative to the building floor opening, preventing the sealing from being misaligned due to external forces and exposing the building floor opening.

[0053] In some embodiments, such as Figure 7 , 8As shown, the pull cable assembly 14 has been optimized. In this embodiment, the pull cable assembly 14 includes a housing 141, a connecting plate 142, a second torsion spring 143, a winding rod 144, an L-shaped plate 1410, a mounting plate 1411, a stop block 1413, and a pull cable 1414. The housing 141 is fixedly connected to the bottom end of the cover plate 6, and its lower end is provided with a strip-shaped opening 1412. The connecting plate 142 is vertically connected to the inner wall of the housing 141. One end of the winding rod 144 passes through the connecting plate 142 and can... Rotating around its own axis, the other end is connected to the inner wall of the outer shell 141 via a second torsion spring 143; two L-shaped plates 1410 are symmetrically and invertedly fixedly connected to the support plate 1 below the outer shell 141; the stop block 1413 is connected to the side walls of the two L-shaped plates 1410 via a third torsion spring; one end of the pull wire 1414 is fixed to the winding rod 144, and the other end passes through the strip opening 1412 and is connected to the mounting plate 1411; the mounting plate 1411 is located below the wing of the L-shaped plate 1410.

[0054] When construction workers need to lay out the wire, they move the lower wire from the clearance opening 121 to the current working layer and wrap one end of the wire around the mounting plate 1411. Then, they rotate the mounting plate 1411 90 degrees around the pull wire 1414 as the axis, so that the mounting plate 1411 extends out from the gap between the two L-shaped plates 1410. At the same time, they rotate the winding rod 144, so that the pull wire 1414 is continuously wrapped around the outer wall of the winding rod 144, and drives the mounting plate 1411 to move upward until the wire is moved below the cover plate 6. At this time, the workers on the upper layer remove the wire from the mounting plate 1411 through the clearance opening 121, pull the wire to the upper layer, and then use the sealing device on the upper layer to continue to transmit the wire until all the laying out work is completed.

[0055] In some embodiments, such as Figure 7 As shown, the pull wire assembly 14 has been further optimized. In this embodiment, the pull wire assembly 14 also includes a power mechanism: a second motor 146, a transmission rod 147, a third electric telescopic rod 148, a first magnet 145, and a second magnet 149. The second motor 146 is connected to the outer wall of the outer casing 141 at the end away from the winding rod 144. One end of the transmission rod 147 passes through the outer casing 141 and is connected to the output end of the second motor 146, and the other end is connected to the third electric telescopic rod 148. The fixed end of the electric telescopic rod 148 is connected to the transmission rod 147, and the telescopic end is connected to the second magnet 149. The first magnet 145 is connected to one end of the winding rod 144 that passes through the connecting plate 142.

[0056] During the wire feeding auxiliary operation, the power mechanism provides power support for rotating the winding rod 144. Specifically, by default, the third electric telescopic rod 148 is in the retracted state. When wire feeding is required, the third electric telescopic rod 148 is controlled to change to the extended state, driving the second magnet 149 to move towards the first magnet 145, so that the second magnet 149 and the first magnet 145 come into contact. At this time, the first magnet 145 and the second magnet 149 are attracted by magnetic force. Then, the second motor 146 is started, so that the output end of the second motor 146 drives the transmission rod 147 to rotate. The transmission rod 147 drives the third electric telescopic rod 148 to rotate, which in turn drives the second magnet 149 and the first magnet 145 to rotate, and finally achieves the purpose of driving the winding rod 144 to rotate.

[0057] In some embodiments, such as Figure 5 As shown, the detection component 15 has been optimized. In this embodiment, the detection component 15 includes a third groove 151, a pressure sensor 152, a support spring 153, and a float plate 154. The third groove 151 is formed at the bottom end of the support plate 1; the pressure sensor 152 is connected to the upper wall of the third groove 151; one end of the support spring 153 is connected to the pressure sensor 152, and the other end is connected to the float plate 154.

[0058] When it is necessary to seal the opening of the building floor slab by pouring concrete, the concrete is poured into the opening of the building floor slab through the relief opening 121. The lower cover plate 6 is used as a template to support the concrete. As the concrete is poured, when the concrete is poured to a certain height, it will push the floating plate 154 to overcome the elastic force of the support spring 153 and move into the third groove 151. At this time, the pressure sensor 152 detects the pressure, indicating that the concrete pouring is complete. At this time, the concrete pouring is stopped, and the sealing device can be disassembled after the concrete solidifies.

[0059] In some embodiments, such as Figure 2 As shown, the cover plate 6 has been optimized. In this embodiment, the bottom end of the cover plate 6 is connected to a smoke detector 16 and an alarm 17, and the alarm 17 is electrically connected to the smoke detector 16.

[0060] In actual operation, when a fire occurs on the floor where the sealing device is located and smoke is generated, the smoke detector 16 can detect the smoke in the air in time and transmit the fire signal to the alarm 17. The alarm 17 will simultaneously issue an alarm to inform the construction personnel that a fire has occurred at the construction site, so that the construction personnel can escape the construction site in time in the event of a fire.

[0061] In some embodiments, such as Figure 1 As shown, the sleeve 4 has been optimized. In this embodiment, a warning light strip 18 is connected to the outer wall of the sleeve 4.

[0062] In actual operation, the warning light strip 18 connected to the outer wall of the sleeve 4 can constantly remind construction workers of the presence of openings in the building floor slab nearby, preventing construction workers from stepping into gaps and falling into the openings and causing accidents.

[0063] A construction method for a building floor slab opening sealing device, applicable to any of the above-mentioned building floor slab opening sealing devices, specifically including:

[0064] Place support plate 1: Place support plate 1 above the floor opening to cover the floor opening;

[0065] Start drive device 2: Start the first motor 8, so that the output end of the first motor 8 drives the rotating rod 9 to rotate. The rotating rod 9 drives the second gear 10 to rotate. At the same time, the first gear 7 also rotates with the rotation of the second gear 10. The first gear 7 drives the threaded screw 3 to rotate. The rotation of the threaded screw 3 drives the lifting rod 5 to rotate and move upward, further driving the cover plate 6 to move upward. When the cover plate 6 contacts the upper building floor slab, the drive device 2 is turned off.

[0066] Activate the snap-fit ​​assembly 13: Activate the second electric telescopic rod 132, which drives the snap-fit ​​plate 133 to move downward, so that the round rod 134 overcomes the elastic force of the first torsion spring and drives the sealing plate 135 to rotate, further driving the snap-fit ​​plate 133 to move downward and extend out of the second groove 131, so that the side wall of the snap-fit ​​plate 133 abuts against the inner wall of the floor opening, thereby preventing the support plate 1 from shifting laterally, completing the fixation of the support plate 1, and achieving the sealing of the floor opening;

[0067] Disassembling the sealing device: Control the second electric telescopic rod 132 to retract, so that the snap plate 133 returns to the initial position. At the same time, control the drive device 2 to make the lifting rod 5 rotate in the opposite direction and descend, so that the cover plate 6 moves downward and away from the upper floor. Finally, remove the entire device to disassemble the sealing device.

[0068] When wire needs to be laid out, the first electric telescopic rod 123 is retracted, causing the baffle 124 to move into the first groove 122, so that the baffle 124 does not block the clearance opening 121. The lower layer of wire is moved from the clearance opening 121 to the working layer, and one end of the wire is wound around the mounting plate 1411. Then, the mounting plate 1411 is rotated 90 degrees around the pull wire 1414 as the axis, so that the mounting plate 1411 extends out from the gap between the two L-shaped plates 1410. At the same time, the third electric telescopic rod 148 is extended, causing the second magnet 149 to move towards the first magnet 145, so that the second magnet 149 contacts the first magnet 145. At this time, the first magnet 145 and the second magnet 149 are in contact. Iron 149 is attracted by magnetic force, and then the second motor 146 is started, so that the output end of the second motor 146 drives the transmission rod 147 to rotate. The transmission rod 147 drives the third electric telescopic rod 148 to rotate, which in turn drives the second magnet 149, the first magnet 145 and the winding rod 144 to rotate. When the winding rod 144 is wound, the pull wire 1414 is continuously wound around the outer wall of the winding rod 144, and drives the mounting plate 1411 to move upward until the wire is moved below the cover plate 6. At this time, the upper layer workers remove the wire from the mounting plate 1411 through the clearance opening 121, pull the wire to the upper layer, and then use the upper layer sealing device to continue to transmit the wire until all the wire release work is completed.

[0069] When it is necessary to seal the opening of the building floor slab with concrete pouring, firstly, control the second electric telescopic rod 132 to retract, causing the snap-fit ​​plate 133, the round rod 134 and the sealing plate 135 to be fully housed in the second groove 131; then control the first electric telescopic rod 123 to retract, causing the baffle 124 to move into the first groove 122, so that the baffle 124 does not block the clearance opening 121; then pour concrete from the clearance opening 121 into the building floor slab opening, using the lower cover plate 6 as a template to support the concrete. As the concrete is poured, when the concrete is poured to a certain height, it will push the floating plate 154 to overcome the elastic force of the support spring 153 and move into the third groove 151. At this time, the pressure sensor 152 detects the pressure, indicating that the concrete pouring is complete. At this time, stop the concrete pouring, wait for the concrete to solidify, and then disassemble the sealing device.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A device for sealing openings in building floor slabs, characterized in that, include: Support plate (1), inside which a drive device (2) is installed; Sleeve (4), the sleeve (4) is a hollow cylindrical structure, and its lower end is connected to the support plate (1); The lifting rod (5) is vertically adjustable and inserted into the sleeve (4). Its lower end passes through the upper surface wall of the sleeve (4) and the support plate (1) in sequence and is connected to the driving device (2). Cover plate (6), the cover plate (6) is connected to the upper end of the lifting rod (5); Both the cover plate (6) and the support plate (1) are equipped with clearance components (12). A pull wire assembly (14) is connected to the opening edge of the clearance component (12). The pull wire assembly (14) includes a shell (141), a winding rod (144), an L-shaped plate (1410), a mounting plate (1411), and a pull wire (1414). The shell (141) is fixedly connected to the bottom end of the cover plate (6), and its lower end is provided with a strip opening (1412). The winding rod (144) is rotatably connected to the inner wall of the shell (141). The two L-shaped plates (1410) are symmetrically and invertedly fixedly connected to the support plate (1). One end of the pull wire (1414) is fixed to the winding rod (144), and the other end passes through the strip opening (1412) and is connected to the mounting plate (1411). The mounting plate (1411) is located below the plate wing of the L-shaped plate (1410).

2. The building floor slab opening sealing device according to claim 1, characterized in that, The drive device (2) includes a power supply (11), a first motor (8), a rotating rod (9), a first gear (7), a second gear (10), and a threaded screw (3). The power supply (11) is electrically connected to the first motor (8). The output end of the first motor (8) is connected to the rotating rod (9). The rotating rod (9) is connected to the second gear (10). The second gear (10) meshes with the first gear (7). The first gear (7) is connected to the threaded screw (3). The upper end of the threaded screw (3) passes through the first gear (7) and is connected to the lifting rod (5).

3. The device for sealing openings in building floor slabs according to claim 1, characterized in that, The clearance assembly (12) includes a clearance opening (121), a first groove (122), a first electric telescopic rod (123), and a baffle (124). The clearance opening (121) is opened through the cover plate (6) and the support plate (1), and the opening positions of the two are corresponding in the vertical direction. The first groove (122) is opened on the side wall of the clearance opening (121). The fixed end of the first electric telescopic rod (123) is connected to the side wall of the first groove (122), and the telescopic end is connected to the baffle (124). The side wall of the baffle (124) is in contact with the inner wall of the clearance opening (121) and can be received in the first groove (122) by the first electric telescopic rod (123).

4. The device for sealing openings in building floor slabs according to claim 1, characterized in that, Both ends of the bottom of the support plate (1) are equipped with snap-fit ​​components (13). The snap-fit ​​components (13) include a second groove (131), a second electric telescopic rod (132), a snap-fit ​​plate (133), a round rod (134), and a sealing plate (135). The second groove (131) is opened at both ends of the bottom of the support plate (1). The fixed end of the second electric telescopic rod (132) is connected to the upper wall of the second groove (131), and the telescopic end is connected to the snap-fit ​​plate (133). The round rod (134) is rotatably connected to the side wall of the second groove (131) through a first torsion spring, and its rod wall is connected to the sealing plate (135).

5. The device for sealing openings in building floor slabs according to claim 1, characterized in that, The pull wire assembly (14) further includes a power mechanism: a second motor (146), a transmission rod (147), a third electric telescopic rod (148), a first magnet (145), and a second magnet (149). The second motor (146) is connected to the outer wall of the outer casing (141) away from the winding rod (144). One end of the transmission rod (147) passes through the outer casing (141) and is connected to the output end of the second motor (146), and the other end is connected to the third electric telescopic rod (148). The fixed end of the third electric telescopic rod (148) is connected to the transmission rod (147), and the telescopic end is connected to the second magnet (149). The first magnet (145) is connected to the end of the winding rod (144) away from the inner wall of the outer casing (141).

6. The device for sealing openings in building floor slabs according to claim 1, characterized in that, The bottom end of the support plate (1) is also equipped with a detection component (15). The detection component (15) includes a third groove (151), a pressure sensor (152), a support spring (153), and a float plate (154). The third groove (151) is opened at the bottom end of the support plate (1). The pressure sensor (152) is connected to the upper wall of the third groove (151). One end of the support spring (153) is connected to the pressure sensor (152), and the other end is connected to the float plate (154).

7. The device for sealing openings in building floor slabs according to claim 1, characterized in that, The outer wall of the sleeve (4) is connected to a warning light strip (18).

8. A construction method for a building floor slab opening sealing device, the construction method being applicable to the building floor slab opening sealing device as described in claim 4, characterized in that, include: Place the support plate (1): Place the support plate (1) above the floor opening to cover the floor opening; Start the drive device (2): Start the drive device (2) to drive the lifting rod (5) to rotate and move upward, further driving the cover plate (6) to move upward. When the cover plate (6) contacts the upper building floor slab, turn off the drive device (2). Activate the snap-fit ​​assembly (13): Activate the second electric telescopic rod (132), which drives the snap-fit ​​plate (133) to move downward, so that the round rod (134) overcomes the elastic force of the first torsion spring and drives the sealing plate (135) to rotate, further driving the snap-fit ​​plate (133) to move downward and extend out of the second groove (131), so that the side wall of the snap-fit ​​plate (133) abuts against the inner wall of the floor opening, thereby preventing the support plate (1) from shifting laterally, completing the fixation of the support plate (1), and realizing the sealing of the floor opening; Disassembling the sealing device: Control the second electric telescopic rod (132) to retract, so that the snap plate (133) returns to the initial position. At the same time, control the drive device (2) to make the lifting rod (5) rotate in the opposite direction and descend, so that the cover plate (6) moves downward and away from the upper floor. Finally, remove the entire device to disassemble the sealing device.

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