Pre-buried casing box device for multiple pipes passing through floor slabs

Abstract

The utility model discloses a pre-buried casing box device for multiple pipes to pass through a floor slab, comprising a pre-buried casing box, a pad and post-cast concrete grouting material; the pre-buried casing box is a hollow box structure with top and bottom openings, the pad is arranged at the bottom of the pre-buried casing box, a through hole for electromechanical pipelines to pass through is formed on the pad, so that the electromechanical pipelines can pass through the pre-buried casing box, and the bottom surface of the pre-buried casing box is blocked by the pad; the pre-buried casing box is pre-buried in a reinforced concrete floor slab, and the post-cast concrete grouting material is filled in the inner wall of the pre-buried casing box, the pad and the space between the electromechanical pipelines. The utility model relates to the technical field of construction engineering, and can solve the problem of inconvenience in secondary pouring and blocking of the floor slab at the reserved openings for multiple pipes to pass through the floor slab in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a pre-buried casing box device for multiple pipes passing through a floor slab. Background Art

[0002] In pipe wells, electromechanical rooms and other locations, there are often multiple pipes passing through the reinforced concrete floor. Generally, these locations are relatively narrow and the pipelines are arranged relatively closely. On-site, I-shaped, L-shaped, and U-shaped openings are often reserved on the floor, rather than independent electromechanical casings. After the electromechanical deepening of the location is completed in the later stage, multiple pipes can be installed in the reserved openings as needed. After the electromechanical installation is completed, except for a small number of openings with small remaining gaps that can be directly filled with fireproof mud, the remaining openings often have large gaps, and the template must be re-installed to carry out the construction of the opening floor.

[0003] In this case, on the one hand, because the reserved openings for multiple pipes are generally located inside the well pipe or beside the partition wall of the electromechanical room, they are affected by the constructed partition wall and the installed electromechanical pipelines. The construction of the formwork, steel bars and concrete of the opening floor slab is often very difficult, and the construction quality cannot be guaranteed. Some openings even give up the secondary construction of the opening floor slab due to the lack of operating surface and construction difficulty, which violates the space separation requirements of electromechanical and fire protection, and has great safety and quality risks. In particular, the U-shaped openings in the electromechanical pipe well, if the opening floor slab has not been reconstructed or has major quality problems, are only connected to the large floor slab on one side, and are actually cantilevered slabs. Moreover, this place is often located at the maintenance door position of the narrow pipe well. During the use of the building, the cantilevered slab of the U-shaped opening is often the standing position of maintenance personnel, which poses a great safety hazard.

[0004] Therefore, it is necessary to provide a pre-buried casing box device for multiple pipes passing through a floor slab, which can solve the problem of inconvenience in secondary pouring and sealing of the floor slab at the reserved openings for multiple pipes passing through the floor slab in the prior art. Summary of the invention

[0005] The utility model aims to provide a pre-buried casing box device for multiple pipes passing through a floor slab, which can solve the problem of inconvenience in secondary pouring and sealing of the floor slab at the reserved openings for multiple pipes passing through the floor slab in the prior art.

[0006] The utility model is achieved in this way:

[0007] A pre-buried sleeve box device for multiple pipes passing through a floor slab comprises a pre-buried sleeve box, a pad and post-cast concrete grouting material; the pre-buried sleeve box is a hollow box structure with top and bottom openings, the pad is arranged at the bottom of the pre-buried sleeve box, a through hole for electromechanical pipelines to pass through is formed on the pad, so that the electromechanical pipelines can pass through the pre-buried sleeve box, and the bottom surface of the pre-buried sleeve box is blocked by the pad; the pre-buried sleeve box is pre-buried in a reinforced concrete floor slab, and the post-cast concrete grouting material is filled in the inner wall of the pre-buried sleeve box, the pad and the space between the electromechanical pipeline.

[0008] Both sides of the bottom of the embedded sleeve box are respectively formed with horizontal extending shelf plates, so that the pad can be placed on the extending shelf plates.

[0009] Waterproof mortar is constructed at the gaps between the backing plate and the inner wall of the embedded casing box and between the through hole of the backing plate and the outer wall of the electromechanical pipeline.

[0010] A water stopper is arranged in the middle of the outer wall of the embedded casing box, and the water stopper is inserted into the reinforced concrete floor slab.

[0011] The upper and lower parts of the outer wall of the embedded sleeve box are respectively provided with upper reserved steel bars and lower reserved steel bars, the upper reserved steel bars are connected to the upper steel bars in the reinforced concrete floor slab, and the lower reserved steel bars are connected to the lower steel bars in the reinforced concrete floor slab.

[0012] The embedded casing box is in an I-shaped structure, an L-shaped structure or a U-shaped structure.

[0013] A temporary connecting rod is arranged in the embedded sleeve box, and a plurality of temporary connecting rods are arranged between the middle parts of the two inner walls of the embedded sleeve box at intervals.

[0014] The top surface of the embedded casing box and the top surface of the post-cast concrete grouting material are flush with the top surface of the reinforced concrete floor slab, and the bottom surface of the embedded casing box is flush with the bottom surface of the reinforced concrete floor slab.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model is provided with a pre-buried casing box, an extended shelf plate, a pad and post-cast concrete grouting material. The pre-buried casing box is provided to facilitate flexible arrangement of multiple pipes. After the multiple electromechanical pipelines are arranged, they are placed on the extended shelf plate at the bottom of the pre-buried casing box through the pad plate, which facilitates the post-cast concrete grouting material to be poured and filled in the gap between the pre-buried casing box and the electromechanical pipelines. The secondary pouring operation of the floor slab at the reserved opening can be carried out without supporting the formwork, which greatly improves the convenience of construction and can ensure the construction quality of the floor slab at the reserved opening position of the secondary pouring. It is suitable for reserved openings of various shapes such as L-shaped, I-shaped, and U-shaped.

[0017] 2. The utility model is provided with a water stop plate, an upper reserved steel bar and a lower reserved steel bar, and the embedded casing box is connected with the upper and lower steel bars in the reinforced concrete floor slab through the upper reserved steel bar and the lower reserved steel bar, and the floor slab at the reserved opening of the secondary pouring and the reinforced concrete floor slab are connected into a whole, thereby ensuring the bearing capacity and structural safety of the floor slab of the reserved opening area for the secondary pouring; at the same time, the water stop plate plays an effective role in waterproofing and anti-seepage at the connection part between the floor slab at the reserved opening and the reinforced concrete floor slab, further ensuring the construction quality of the floor slab at the reserved opening of the secondary pouring.

[0018] 3. The utility model is provided with a temporary connecting rod, which can play a supporting role inside the embedded casing box, and ensure the integrity and non-deformation and damage of the embedded casing box when transporting the embedded casing box and installing electromechanical pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an installation elevation view of the pre-buried casing box device for multiple pipes passing through the floor slab of the utility model (the electromechanical pipes are not laid);

[0020] Figure 2 This is the installation plan of the pre-buried casing box device for multiple pipes passing through the floor slab of the utility model (the electromechanical pipes are not laid);

[0021] Figure 3 This is an installation elevation view of the pre-buried casing box device for multiple pipes passing through the floor slab of the utility model (layout of electromechanical pipelines, the section is located at the electromechanical pipelines);

[0022] Figure 4 This is an installation elevation view of the pre-buried casing box device for multiple pipes passing through the floor slab of the utility model (layout of electromechanical pipelines, the section is located at the non-electromechanical pipeline location);

[0023] Figure 5 This is the installation plan of the pre-buried casing box device for multiple pipes passing through the floor slab of the utility model (pre-buried casing box with I-shaped structure);

[0024] Figure 6 This is the installation plan of the pre-buried casing box device for multiple pipes passing through the floor slab of the utility model (pre-buried casing box with L-shaped structure);

[0025] Figure 7 It is an installation plan view of the pre-buried casing box device for multiple pipes passing through a floor slab according to the utility model (pre-buried casing box with a U-shaped structure);.

[0026] In the figure, 1 is reinforced concrete floor slab, 2 is electromechanical pipeline, 3 is embedded casing box, 301 is extended shelf plate, 4 is pad, 5 is water stop plate, 6 is upper reserved steel bar, 7 is lower reserved steel bar, 8 is temporary connecting rod, 9 is post-poured concrete grouting material, and 10 is waterproof mortar. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Please see attached Figure 1 To Attachment Figure 4 A pre-buried sleeve box device for multiple pipes passing through a floor slab comprises a pre-buried sleeve box 3, a pad 4 and a post-cast concrete grouting material 9; the pre-buried sleeve box 3 is a hollow box structure with openings at the top and the bottom, the pad 4 is arranged at the bottom of the pre-buried sleeve box 3, and a through hole (not shown in the figure) is formed on the pad 4 for the electromechanical pipeline 2 to pass through, so that the electromechanical pipeline 2 can pass through the pre-buried sleeve box 3, and the bottom surface of the pre-buried sleeve box 3 is blocked by the pad 4; the pre-buried sleeve box 3 is pre-buried in the reinforced concrete floor slab 1, and the post-cast concrete grouting material 9 is filled in the inner wall of the pre-buried sleeve box 3, the pad 4 and the space between the electromechanical pipeline 2.

[0029] The embedded casing box 3 can be customized according to the size and shape of the reserved hole on the reinforced concrete floor 1, and a metal prefabricated box without a cover and a bottom is used to ensure that the embedded casing box 3 is exactly embedded in the reserved hole of the reinforced concrete floor 1. The openings at the top and bottom of the embedded casing box 3 do not affect the penetration and fixing of the post-cast concrete grouting material 9.

[0030] The pad 4 is set at the bottom of the embedded sleeve box 3, and the electromechanical pipeline 2 is laid through it, so that the bottom of the embedded sleeve box 3 can be blocked, which is convenient for filling and blocking the embedded sleeve box 3 with the post-cast concrete grouting material 9 after the construction of the electromechanical pipeline 2 is completed. There is no need to support the bottom formwork, which greatly simplifies the construction process, reduces the construction difficulty, and ensures the pouring quality of the post-cast concrete grouting material 9, thereby ensuring the bearing capacity of the floor slab cast for the second time at the reserved opening.

[0031] Please see attached Figure 1 To Attachment Figure 4 , both sides of the bottom of the embedded casing box 3 are respectively formed with horizontal extending shelf plates 301, so that the pad 4 can be placed on the extending shelf plates 301.

[0032] The extended shelf plate 301 is provided to facilitate the placement of the pad plate 4 and prevent the pad plate 4 from falling. Preferably, the width of the extended shelf plate 301 is suitable to stably place the pad plate 4 without affecting the installation of the electromechanical pipeline 2. The extended shelf plate 301 can be integrally formed with the embedded casing box 3 by a bending process.

[0033] Please see attached Figure 3 and attached Figure 4 Waterproof mortar 10 is constructed at the gaps between the backing plate 4 and the inner wall of the embedded casing box 3 and between the through hole of the backing plate 4 and the outer wall of the electromechanical pipeline 2.

[0034] Preferably, a certain gap is left between the edge of the pad 4 and the inner wall of the embedded sleeve box 3, and between the through hole of the pad 4 and the outer wall of the electromechanical pipeline 2 to ensure the smooth installation of the pad 4. After the pad 4 is installed, the gap between the pad 4 and the embedded sleeve box 3 and the electromechanical pipeline 2 is sealed by waterproof mortar 10 to avoid leakage during the filling and pouring of the post-poured concrete grouting material 9.

[0035] Please see attached Figure 1 , Attachment Figure 3 and attached Figure 4 A water stop plate 5 is provided in the middle of the outer wall of the embedded casing box 3 , and the water stop plate 5 is inserted into the reinforced concrete floor 1 .

[0036] The water stop sheet 5 can achieve the effect of waterproofing and anti-seepage, and improve the connection reliability between the embedded casing box 3 and the reinforced concrete floor slab 1 and the integrity of the floor slab after pouring.

[0037] Please see attached Figure 1 , Attachment Figure 3 and attached Figure 4 The upper and lower parts of the outer wall of the embedded sleeve box 3 are respectively provided with upper reserved steel bars 6 and lower reserved steel bars 7, the upper reserved steel bars 6 are connected to the upper steel bars in the reinforced concrete floor 1, and the lower reserved steel bars 7 are connected to the lower steel bars in the reinforced concrete floor 1.

[0038] By setting the upper reserved steel bars 6 and the lower reserved steel bars 7, they can be connected with the upper steel bars and the lower steel bars in the reinforced concrete floor 1, further improving the connection reliability between the embedded sleeve box 3 and the reinforced concrete floor 1, so that after the secondary construction of the reserved opening is completed, that is, after the post-poured concrete grouting material 9 is poured, the integrity between it and the reinforced concrete floor 1 is achieved, and the bearing capacity and structural safety of the floor in the reserved opening area are ensured.

[0039] The setting height of the upper reserved steel bars 6 and the lower reserved steel bars 7 can be determined according to the height of the upper and lower steel bars in the reinforced concrete floor 1 to ensure the reliable docking of the steel bars. Preferably, the upper reserved steel bars 6 and the lower reserved steel bars 7 can be connected to the upper and lower steel bars in the reinforced concrete floor 1 by screwing, tying, welding, etc.

[0040] Please see attached Figure 5 To Attachment Figure 7 The embedded casing box 3 is in an I-shaped structure, an L-shaped structure or a U-shaped structure.

[0041] The conventional shape of the reserved hole for multiple pipes to pass through the floor is an I-shaped structure, an L-shaped structure or a U-shaped structure. The corresponding embedded casing box 3 can be selected according to the actual shape of the reserved hole, which can meet the common reserved hole installation requirements in the prior art.

[0042] Please see attached Figure 1 and attached Figure 2 A temporary connecting rod 8 is arranged in the embedded casing box 3, and a plurality of temporary connecting rods 8 are arranged between the middle parts of the two inner walls of the embedded casing box 3 at intervals.

[0043] During the transportation of the pre-buried casing box 3, or after the pre-buried casing box 3 is installed and the electromechanical pipeline 2 is installed, the pre-buried casing box 3 can be supported by a plurality of temporary connecting rods 8 to ensure the integrity and non-deformation and damage of the pre-buried casing box 3. When installing the electromechanical pipeline 2, the temporary connecting rods 8 at the interference position with the electromechanical pipeline 2 can be cut off to ensure the layout of the electromechanical pipeline 2.

[0044] Please see attached Figure 3 and attached Figure 4 The top surface of the embedded sleeve box 3 and the top surface of the post-cast concrete grouting material 9 are flush with the top surface of the reinforced concrete floor 1. Preferably, the bottom surface of the embedded sleeve box 3 is flush with the bottom surface of the reinforced concrete floor 1.

[0045] After the post-cast concrete grouting material 9 is poured, the entire embedded casing box 3 and the post-cast concrete grouting material 9 form a whole with the reinforced concrete floor slab 1, which basically does not affect the structure and appearance of the reinforced concrete floor slab 1.

[0046] Please see attached Figure 1 To Attachment Figure 7 , the construction method of the utility model is:

[0047] During the installation of steel bars for large floor slabs, the embedded sleeve boxes 3 are installed together with the steel bars of the reinforced concrete floor slab 1 at the I-shaped, L-shaped, and U-shaped reserved openings of the multi-tube penetration plates, and the upper and lower steel bars of the upper and lower layers of the reinforced concrete floor slab 1 that are perpendicular to the side walls of the embedded sleeve boxes 3 are effectively connected to the upper reserved steel bars 6 and the upper reserved steel bars 7 that are one circle outside the embedded sleeve boxes 3.

[0048] After the large surface structure of the floor is poured, a pad 4 or a wooden template can be temporarily placed on a number of temporary connecting rods 8 between the side walls of the embedded casing box 3 to temporarily close the reserved opening to prevent construction waste from falling from the reserved opening. When laying the electromechanical pipeline 2, the pad 4 or the wooden template can be removed.

[0049] After the relevant electromechanical deepening is completed, the pad 4 should be cut according to the actual multi-tube arrangement position, quantity and size, and the hole size is slightly larger than the outer diameter of the electromechanical pipeline 2 arranged at the corresponding position. Before installing a certain electromechanical pipeline 2 with a reserved hole, cut off a number of temporary connecting rods 8 at the corresponding position between the side walls of the embedded casing box 3 to prevent the temporary connecting rods 8 from interfering with the installation of the electromechanical pipeline 2. The electromechanical pipeline 2 is installed using conventional procedures, and its installation process is not repeated here, so that the electromechanical pipeline 2 passes through the embedded casing box 3.

[0050] Lay the backing plate 4 on the extended shelf plate 301 at the bottom of the embedded casing box 3, and make the electromechanical pipeline 2 pass through the backing plate 4. The backing plate 4 can be laid in a single piece or in multiple pieces in a row according to actual needs and the length of the reserved hole.

[0051] Waterproof mortar 10 is used to apply the gaps between the embedded casing box 3 and the pad 4, and between the pad 4 and the electromechanical pipeline 2. Finally, concrete grouting material 9 is used to pour the gap parts in the embedded casing box 3. The concrete grouting material 9 is poured until it is flush with the upper surface of the reinforced concrete floor 1.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pre-buried casing box device for multiple pipes passing through a floor slab, characterized in that: The invention comprises a pre-buried casing box (3), a backing plate (4) and a post-cast concrete grouting material (9); the pre-buried casing box (3) is a hollow box structure with openings at the top and bottom; the backing plate (4) is arranged at the bottom of the pre-buried casing box (3); a through hole for the electromechanical pipeline (2) to pass through is formed on the backing plate (4), so that the electromechanical pipeline (2) can pass through the pre-buried casing box (3); and the bottom surface of the pre-buried casing box (3) is blocked by the backing plate (4); the pre-buried casing box (3) is pre-buried in a reinforced concrete floor slab (1); and the post-cast concrete grouting material (9) is filled in the space between the inner wall of the pre-buried casing box (3), the backing plate (4) and the electromechanical pipeline (2).

2. The pre-buried casing box device for multiple pipes passing through a floor slab according to claim 1 is characterized in that: Both sides of the bottom of the embedded casing box (3) are respectively formed with horizontally extending shelf plates (301), so that the pad (4) can be placed on the extending shelf plates (301).

3. The pre-buried casing box device for multiple pipes passing through a floor slab according to claim 1 is characterized in that: Waterproof mortar (10) is constructed at the gaps between the backing plate (4) and the inner wall of the embedded casing box (3) and between the through hole of the backing plate (4) and the outer wall of the electromechanical pipeline (2).

4. The pre-buried casing box device for multiple pipes passing through a floor slab according to any one of claims 1 to 3, characterized in that: A water stop plate (5) is provided in the middle of the outer wall of the embedded casing box (3), and the water stop plate (5) is inserted into the reinforced concrete floor slab (1).

5. The pre-buried casing box device for multiple pipes passing through a floor slab according to any one of claims 1 to 3, characterized in that: The upper and lower parts of the outer wall of the embedded sleeve box (3) are respectively provided with upper reserved steel bars (6) and lower reserved steel bars (7); the upper reserved steel bars (6) are connected to the upper steel bars in the reinforced concrete floor (1); and the lower reserved steel bars (7) are connected to the lower steel bars in the reinforced concrete floor (1).

6. The pre-buried casing box device for multiple pipes passing through a floor slab according to any one of claims 1 to 3, characterized in that: The embedded casing box (3) is in an I-shaped structure, an L-shaped structure or a U-shaped structure.

7. The pre-buried casing box device for multiple pipes passing through a floor slab according to any one of claims 1 to 3, characterized in that: A temporary connecting rod (8) is arranged in the embedded casing box (3), and a plurality of temporary connecting rods (8) are arranged at intervals between the middle parts of the two inner walls of the embedded casing box (3).

8. The pre-buried casing box device for multiple pipes passing through a floor slab according to any one of claims 1 to 3, characterized in that: The top surface of the embedded casing box (3) and the top surface of the post-cast concrete grouting material (9) are flush with the top surface of the reinforced concrete floor (1), and the bottom surface of the embedded casing box (3) is flush with the bottom surface of the reinforced concrete floor (1).

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