Floor hole sealing method and device

Abstract

This invention discloses a method for sealing pre-reserved openings in floor slabs, comprising the following steps: fixing reinforcing bars and installing formwork; installing a support frame on the formwork; installing a cover plate inside the support frame; pouring concrete around the formwork; and removing the formwork. By pre-installing this device, the existing pre-reserved openings in the floor slab can be maintained while ensuring safe passage. The prefabricated components simplify on-site installation and ensure the structural stability of the cover plate. The cover plate allows for easy openings to allow mechanical and electrical equipment to pass through without sacrificing its support capacity to bear live loads. The Z-shaped cross-section installation frame provides overall support after concrete pouring, making installation easier. The grid plate is connected to the frame via wedges and screws, ensuring relatively reliable structural stability.

Description

Technical Field

[0001] This invention relates to the field of building technology, and in particular to a method and apparatus for sealing pre-reserved openings in floor slabs. Background Technology

[0002] During construction, holes are typically pre-drilled in floor slabs to accommodate elevator shafts, ventilation openings, and equipment shafts. These pre-drilled holes can pose safety hazards. As the construction industry develops, safety measures in the construction field are constantly being improved and enhanced. Pre-drilled holes in floor slabs, as a key aspect of safety management, are receiving increasing attention. Summary of the Invention

[0003] The main objective of this invention is to provide a method for sealing pre-reserved holes in floor slabs, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A method for sealing pre-reserved openings in floor slabs includes the following steps:

[0006] Fix the reinforcing bars and install the formwork;

[0007] Install the support frame on the template;

[0008] Install a cover plate inside the support frame;

[0009] Pour concrete around the formwork;

[0010] Remove template.

[0011] By pre-setting this device, the floor slab can still be safely accessed while maintaining the original reserved openings.

[0012] The prefabricated components simplify the on-site installation process and ensure the stability of the cover structure.

[0013] The cover plate has simple openings to allow mechanical and electrical equipment to pass through without losing its supporting capacity to withstand live loads; the installation frame with a Z-shaped cross-section provides overall support after concrete is poured, making installation easier.

[0014] The grid panels are connected to the frame by wedges and screws, ensuring a reliable structure.

[0015] In a preferred embodiment, the steps of fixing the reinforcing bars and installing the formwork include:

[0016] An installation space is reserved when fixing the reinforcing bars, and a template is installed at the edge of the installation space. The template is made of wood.

[0017] In a preferred embodiment, the step of installing the support frame on the template includes:

[0018] A support frame is installed at the top of the template. The support frame consists of multiple installation strips, which provide positioning and support for the grid plate. After installation, they are embedded together in the concrete floor slab. The installation strips are Z-shaped, and the bottom of the Z-shaped installation strips is provided with a fixing groove for fixing to the top of the template. The bottom of the Z-shaped installation strips is provided with an inward first support surface for supporting the cover plate. The top of the Z-shaped installation strips is provided with an outward second support surface for contacting the floor slab.

[0019] In a preferred embodiment, the step of installing the cover plate within the support frame includes:

[0020] The cover plate includes a support strip and a mesh plate. The support strip is inverted T-shaped and its length can be freely selected to provide strong support for the mesh plate. Each of the bottom ends of the support strip is provided with a support surface. There are two mesh plates. One end of the mesh plate is connected to the support surface through a wedge and a screw. The mesh inside the mesh plate corresponds to the wedge. The wedge and the support surface are provided with screw holes corresponding to the wedge and the screw.

[0021] In a preferred embodiment, the step of installing the cover plate within the support frame includes:

[0022] Place the installed mesh plate and support strip into the support frame, and fix the mesh plate to the contact surface of the first support surface with wedges and screws.

[0023] In a preferred embodiment, the step of installing the cover plate within the support frame includes:

[0024] Insert the embedded screw horizontally from the side of the mounting strip to secure the mounting strip to the mesh plate.

[0025] As another aspect of the present invention, a sealing device for pre-reserved holes in floor slabs is provided, comprising:

[0026] A support frame, the support frame comprising multiple mounting strips;

[0027] Cover plate, the cover plate including a grid plate and support strips;

[0028] In a preferred embodiment, the mounting strip is Z-shaped, and the bottom of the Z-shaped mounting strip is provided with a fixing groove for fixing to the top of the template. The bottom of the Z-shaped mounting strip is provided with an inward first support surface for supporting the cover plate. The top of the Z-shaped mounting strip is provided with an outward second support surface for contacting the floor slab.

[0029] In a preferred embodiment, the support bar is inverted T-shaped, with a support surface at each of the bottom ends. There are two mesh plates, one end of which is connected to the support surface via a wedge and a screw. The mesh inside the mesh plate corresponds to the wedge, and the wedge and the support surface are provided with screw holes corresponding to the wedge and the screw.

[0030] In a preferred embodiment, the mounting strip is further included with an embedded screw that enters horizontally from the side of the mounting strip to secure the mounting strip to the mesh plate.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] By pre-setting this device, the floor slab can still be safely accessed while maintaining the original reserved openings.

[0033] The prefabricated components simplify the on-site installation process and ensure the stability of the cover structure.

[0034] The cover plate has simple openings to allow mechanical and electrical equipment to pass through without losing its supporting capacity to withstand live loads; the installation frame with a Z-shaped cross-section provides overall support after concrete is poured, making installation easier.

[0035] The grid panels are connected to the frame by wedges and screws, making the structure relatively stable and reliable. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a structural schematic diagram of a floor slab pre-reserved hole sealing device according to the present invention.

[0038] Figure 2 This is a schematic diagram of the support strip of a floor slab pre-reserved hole sealing device according to the present invention.

[0039] Figure 3 This is a schematic diagram of the installation strip of a floor slab pre-reserved hole sealing device according to the present invention.

[0040] Figure 4 This is a schematic cross-sectional view of a sealing device for pre-reserved holes in floor slabs according to the present invention.

[0041] In the diagram: 1. Support frame; 2. Mounting strip; 3. Mesh plate; 4. Support strip; 5. Fixing groove; 6. Second support surface; 7. First support surface; 8. Wedge block; 9. Screw; 10. Embedded screw; 11. Template. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figure 1-4 The method for sealing a pre-reserved opening in a floor slab, as shown, includes the following steps:

[0044] S1 Fix the reinforcing bars and install the formwork;

[0045] S2 installs a support frame on template 11;

[0046] S3 has a cover plate installed inside the support frame;

[0047] S4 pours concrete around formwork 11;

[0048] S5 Remove Template.

[0049] By pre-setting this device, the floor slab can still be safely accessed while maintaining the original reserved openings.

[0050] The prefabricated components simplify the on-site installation process and ensure the stability of the cover structure.

[0051] The cover plate has simple openings to allow mechanical and electrical equipment to pass through without losing its supporting capacity to withstand live loads; the installation frame with a Z-shaped cross-section provides overall support after concrete is poured, making installation easier.

[0052] The grid panel is connected to the frame via wedges and screws, ensuring a reliable structure. The wedges secure the grid panel to the support bars. Objects with some weight can also be placed and fixed to the grid panel by fastening them to the wedges with self-tapping screws. If the feet of objects placed on the grid panel are specially designed, the securing force will be significantly improved.

[0053] A grid plate, wherein the grid plate is one, two, or more.

[0054] The steps of fixing the reinforcing bars and installing the formwork include:

[0055] An installation space is reserved when fixing the reinforcing bars, and a template is installed at the edge of the installation space. The template is made of wood.

[0056] The step of installing the support frame on the template includes:

[0057] A support frame is installed at the top of the template. The support frame consists of multiple installation strips, which provide positioning and support for the grid plate. After installation, they are embedded together in the concrete floor slab. The installation strips are Z-shaped, and the bottom of the Z-shaped installation strips is provided with a fixing groove for fixing to the top of the template. The bottom of the Z-shaped installation strips is provided with an inward first support surface for supporting the cover plate. The top of the Z-shaped installation strips is provided with an outward second support surface for contacting the floor slab.

[0058] The step of installing the cover plate within the support frame includes:

[0059] The cover plate includes support strips and a grid plate. The grid plate and support strips are not mandatory. If the area is small, only one grid plate is needed. If the area is large, multiple support strips can be set. Other types of plates can also be used for the grid plate. The grid plate and wedges have an inner trapezoidal fit and self-locking fastening design in terms of size and shape. The support strip is inverted T-shaped and its length can be freely selected to provide strong support for the grid plate. Each end of the bottom of the support strip has a support surface. There are two grid plates. One end of the grid plate is connected to the support surface through a wedge and a screw. The grid inside the grid plate corresponds to the wedge. The wedge and the support surface have screw holes corresponding to the wedge and the screw. These holes can be opened on-site when fixing the screws with self-drilling screws after the grid plate is placed on the support strip, without pre-setting.

[0060] Holes can be made in the mesh cover plate at any location except where the support strips will be cut, and the size of the hole is less than 75% of the area.

[0061] The step of installing the cover plate within the support frame includes:

[0062] Place the installed mesh plate and support strip into the support frame, and fix the mesh plate to the contact surface of the first support surface with wedges and screws.

[0063] The step of installing the cover plate within the support frame includes:

[0064] Insert the embedded screw horizontally from the side of the mounting strip to secure the mounting strip to the mesh plate.

[0065] As another aspect of the present invention, a sealing device for pre-reserved holes in floor slabs is provided, comprising:

[0066] The support frame 1 includes multiple mounting strips 2. The materials of the support frame and the mounting strips include metals such as aluminum, steel, stainless steel, etc., or non-metallic materials such as FRP, plastic, polymer materials, GRC, UHPC, etc.

[0067] The cover plate includes a grid plate 3 and a support strip 4. The material of the cover plate includes metals such as aluminum, steel, stainless steel, etc., or non-metallic materials such as FRP, plastic, polymer materials, GRC, UHPC, etc.

[0068] Install the support frame 1 and the cover plate using the method described above.

[0069] The mounting strip 2 is Z-shaped, and the bottom of the Z-shaped mounting strip 2 is provided with a fixing groove 5 for fixing to the top of the template. The fixing groove is matched with the height of the template to prevent grout leakage during the concrete pouring process. The bottom of the Z-shaped mounting strip 2 is provided with an inward first support surface 7 for supporting the cover plate. The top of the Z-shaped mounting strip 2 is provided with an outward second support surface 6 for contacting the floor slab.

[0070] The support bar 4 is inverted T-shaped, with a support surface at each end of its bottom. The mesh plate 3 consists of two pieces, with one end of the mesh plate 3 connected to the support surface via a wedge 8 and a screw 9. The mesh inside the mesh plate 3 corresponds to the wedge 8. The wedge 8 and the support surface are provided with screw holes corresponding to the wedge 8 and the screw 9. The material of the wedge 8 includes metals such as aluminum, steel, and stainless steel, or non-metallic materials such as FRP, plastic, polymer materials, GRC, and UHPC.

[0071] It also includes an embedded screw 10, which enters horizontally from the side of the mounting strip 2 to fix the mounting strip 2 and the mesh plate 3. The metal material can be selected by welding the embedded screw (threaded or threadless screw rod) to the mounting strip in advance. The material of the embedded screw 10 includes metals such as aluminum, steel, stainless steel, etc., or non-metallic materials such as FRP, plastic, polymer materials, GRC, UHPC, etc.

[0072] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to mechanical connections, electrical connections, or welding, or the internal connection of two components; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0073] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for sealing pre-reserved openings in floor slabs, characterized in that, Includes the following steps: Fix the reinforcing bars and install the formwork; Install the support frame on the template; Install a cover plate inside the support frame; Pour concrete around the formwork; Remove template; The step of installing the support frame on the template includes: A support frame is installed at the top of the template. The support frame is composed of multiple mounting strips. The mounting strips are Z-shaped, and the bottom of the Z-shaped mounting strips is provided with a fixing groove for fixing to the top of the template. The bottom of the Z-shaped mounting strips is provided with an inward first support surface for supporting the cover plate. The top of the Z-shaped mounting strips is provided with an outward second support surface for contacting the floor slab. The step of installing the cover plate within the support frame includes: The cover plate includes a support strip and a mesh plate. The support strip is inverted T-shaped and has a support surface at each of its bottom ends. One end of the mesh plate is connected to the support surface via a wedge and a screw. The mesh inside the mesh plate corresponds to the wedge. The wedge and the support surface are provided with screw holes corresponding to the wedge and the screw, respectively. The step of installing the cover plate within the support frame includes: Place the installed mesh plate and support strip into the support frame, and fix the mesh plate to the contact surface of the first support surface with wedges and screws.

2. The method for sealing pre-reserved openings in floor slabs according to claim 1, characterized in that, The steps of fixing the reinforcing bars and installing the formwork include: An installation space is reserved when fixing the reinforcing bars, and a template is installed at the edge of the installation space. The template is made of wood.

3. The method for sealing pre-reserved openings in floor slabs according to claim 1, characterized in that, The step of installing the cover plate within the support frame includes: Insert the embedded screw horizontally from the side of the mounting strip to secure the mounting strip to the mesh plate.

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