A construction method for integrating prefabricated concealed electrical boxes with conduits and infill wall blocks

Abstract

This invention discloses a method for the integrated construction of prefabricated concealed electrical boxes with conduits and infill wall blocks. The method includes the following steps: (i) determining the size and structure of the prefabricated concrete blocks for the electrical boxes; (ii) setting up the molds for the prefabricated concrete blocks; (iii) assembling and pouring the molds for the prefabricated concrete blocks; (iv) installing the conduits within the prefabricated concrete blocks; and (v) processing and constructing the infill wall blocks. This method integrates the prefabricated concrete boxes with the conduits embedded in the wall, forming a single integrated structure during masonry construction. It eliminates the need for cutting and chiseling the infill wall surface before installation and sealing, making the construction simple, convenient, safe, and reliable.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to the construction of electrical conduits for strong and weak current boxes in infill walls made of autoclaved aerated concrete blocks or porous brick masonry. Background Technology

[0002] In the process of installing electrical boxes and conduits in infill masonry walls of buildings, the traditional method involves cutting and chiseling out the openings and grooves for the electrical boxes and conduits according to the design location on the wall surface after the masonry construction is completed. The conduits are then inserted into the chiseled openings and grooves and sealed with cement mortar. This traditional method not only disturbs the overall stability of the masonry structure and affects the quality of the wall, but also generates dust during the chiseling process, polluting the environment. The drilling, grooving, and patching processes increase labor and material costs, delay the construction period, and the sealing quality is unstable, easily leading to hollow areas and cracks, affecting the final appearance. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the existing technology by providing a method for the integrated construction of prefabricated concealed electrical boxes with conduits and infill wall blocks. This method is simple and convenient to construct, with low labor and material costs, and a safe and reliable structure.

[0004] The technical solution adopted by the present invention to achieve the above objectives is: a construction method for prefabricated concealed electrical box conduit and infill wall block, including the following steps: (i) determining the size and structure of the prefabricated concrete block of the electrical box; (ii) setting up the mold of the prefabricated concrete block of the electrical box; (iii) assembling and pouring the mold of the prefabricated concrete block of the electrical box; (iv) installing the conduit of the prefabricated concrete block of the electrical box; and (v) processing and masonry of the infill wall block.

[0005] The further technical solution of the present invention is as follows: The construction method of each step above is as follows: (I) Determine the structure and size of the precast concrete block of the strong and weak electrical box: The precast concrete block of the strong and weak electrical box consists of the inner box of the strong and weak electrical box and the concrete block formed outside the inner box of the strong and weak electrical box. The inner box of the strong and weak electrical box is a box formed by concrete pouring. The inner box of the strong and weak electrical box is a rectangular box with one side wall hollowed out. The concrete blocks are integrally surrounded by the bottom surface and the four sides of the inner box of the strong and weak electrical box to form an integral structure. The upper and lower side walls of the inner box of the strong and weak electrical box and the concrete blocks connected thereto form reserved holes by pre-embedded multiple conduit cup lock buckles. (II) Mold setup for precast concrete blocks of electrical boxes: The mold includes a base plate, side plates, limiting strips, reinforcing clamps, and triangular wooden wedges. The side plates are connected end to end and installed on the surface of the base plate. The side plates enclose the inner cavity of the rectangular mold. The limiting strips are set on the surface of the base plate and surround the outside of the side plates to restrict the movement of the bottom end of the side plates. The reinforcing clamps surround the outside of the top end of the side plates to restrict the movement of the top end of the side plates. The triangular wooden wedges are set in the gap between the inner wall of the reinforcing clamps and the outer wall of the side plates; (III) Assembly and pouring of precast concrete blocks for electrical boxes: Assemble the mold in step (II). Pour the mold into the inner cavity of the rectangular mold formed by the side plates on the surface of the base plate. Place multiple limiting pads on the surface, then invert the inner box of the strong and weak current box onto the middle of the rectangular mold cavity formed by the side plates, and the bottom end face of the inner box of the strong and weak current box is supported by the limiting pads. Set the conduit cup locking buckle between the reserved hole of the inner box of the strong and weak current box and its corresponding side plate. Inject concrete into the inner cavity of the rectangular mold and vibrate it. After reaching the strength and forming, the precast concrete block of the strong and weak current box is obtained after demolding. (IV) Installation of conduit for the precast concrete block of the strong and weak current box: When the wall is built to the installation position of the strong and weak current box, first lay mortar at the bottom, then place the precast concrete block of the strong and weak current box with the opening facing outwards in the corresponding installation position, and use The mortar is laid together with the surrounding wall blocks and the conduit is installed in advance so that the conduit is connected to the inlet end conduit cup with a locking buckle in the pre-reserved hole at the top of the precast concrete block of the strong and weak electrical box; (V) Processing and laying of infill wall blocks: During the process of laying the infill wall from bottom to top, the part that passes through which the conduit has been installed in advance is changed from the original block I with a thickness of D to two blocks II with a thickness of D / 2. The inner side of one of the blocks II is opened according to the position and diameter of the conduit to position the conduit. The conduit is then concealed between the two blocks II with a thickness of D / 2.

[0006] A further technical solution of the present invention is: the limiting clip and the reinforcing clamp of the mold in step (II) are respectively a cuboid frame structure. When assembling the mold, the triangular wooden wedge is set in the gap between the inner wall of the reinforcing clamp and the outer wall of the side plate on opposite sides.

[0007] A further technical solution of the present invention is: after step (v), when the wall capping bricks are laid obliquely through the conduit section, the capping bricks are cut into V-shaped notches and the conduit is concealed within the V-shaped notches of the capping bricks.

[0008] The prefabricated concealed electrical box conduit and infill wall block construction method of the present invention has the following beneficial effects:

[0009] 1. The construction method of the present invention eliminates the need for cutting, chiseling and grooving the wall surface, as well as the tedious process of subsequent mortar filling and repair. It completely solves the destructive operation of chiseling and grooving on the wall surface, speeds up the construction progress, and reduces dust and construction waste.

[0010] 2. The construction method of this invention involves prefabricating strong and weak current boxes with concrete and embedding conduits in the wall, which is completed in one piece with the masonry construction. This reduces labor costs, increases construction efficiency, improves the overall stability of the masonry structure and the quality of the wall, and avoids the risk of cracking in the wall decoration.

[0011] 3. The construction method of this invention uses precast concrete for the strong and weak current boxes. The concrete and mold materials can be made from the leftover concrete and formwork during the construction of the main structure, which saves materials and reduces costs.

[0012] 4. The mold for the precast concrete blocks of the strong and weak current boxes in the construction method of this invention adopts nail-free fixing, which is convenient and quick to install and dismantle. The structure is simple and reliable, the construction is convenient, and the concrete forming effect is good.

[0013] The following description, in conjunction with the accompanying drawings and embodiments, further illustrates the construction method of the prefabricated concealed electrical box conduit and infill wall block integrated construction method of the present invention. Attached Figure Description

[0014] Figure 1 This is a construction flowchart of the prefabricated concealed electrical box conduit and infill wall block integrated construction method of the present invention.

[0015] Figure 2 This is a schematic diagram of the precast concrete block of the power and weak current box in the construction method of the precast concealed power and weak current box conduit and the infill wall block of the present invention.

[0016] Figure 3 This is a schematic diagram of the mold structure for precast concrete blocks used in electrical distribution boxes;

[0017] Figure 4 This is a schematic diagram of the mold assembly for precast concrete blocks of electrical boxes for both high and low voltage circuits.

[0018] Figure 5 This is a schematic diagram showing the precast concrete blocks for electrical boxes and conduits embedded in the wall.

[0019] Figure 6 This is a schematic diagram showing the conduit pre-embedded inside the capping bricks;

[0020] Explanation of reference numerals: 1-Precast concrete block for electrical boxes (both high and low voltage), 11-Concrete block, 12-Inner box for electrical boxes (both high and low voltage), 13-Cable cup lock buckle, 2-Mold, 21-Base plate, 22-Side plate, 23-Reinforcing clamp, 24-Limiting strip, 25-Limiting pad, 26-Triangular wooden wedge, 3-Block II, 31-Grooving, 4-Conduit, 5-Block I, 6-Capping brick, 61-V notch. Detailed Implementation

[0021] like Figure 1 This invention relates to a construction method for integrating prefabricated concealed electrical boxes with conduits and infill wall blocks, comprising the following steps: (i) determining the size and structure of the prefabricated concrete block 1 for the electrical box; (ii) setting up the mold for the prefabricated concrete block 1 for the electrical box; (iii) assembling and pouring the mold for the prefabricated concrete block 1 for the electrical box; (iv) installing the conduit 4 for the prefabricated concrete block 1 for the electrical box; and (v) processing and constructing the infill wall blocks. Before step (i), there are steps for construction preparation and optimization of the arrangement of the infill wall blocks. Construction preparation involves making necessary preparations for construction. Optimization of the arrangement of the infill wall blocks: using BIM technology, a three-dimensional model of the infill wall blocks at the locations of the electrical boxes with conduits is created on each building floor to optimize the arrangement of the entire infill wall blocks and determine the installation position of the conduits for the electrical boxes.

[0022] The specific construction methods for each step in steps (I) to (V) above are as follows:

[0023] (a) Determine the structure and dimensions of the precast concrete block 1 for the strong and weak current electrical boxes: (e.g.) Figure 2 As shown, the precast concrete block 1 of the power distribution box consists of an inner box 12 and concrete blocks 11 formed outside the inner box 12. The inner box 12 is a box formed by pouring concrete. The inner box 12 is a rectangular box with one side wall hollowed out. Before construction, the inner box 12 is precast. The concrete blocks 11 are integrally enclosed on the bottom and four sides of the inner box 12 to form an integrated structure. The upper and lower side walls of the inner box 12 and the concrete blocks connected to them form reserved holes through multiple pre-embedded conduit cup locking buckles 13. The conduit cup locking buckles 13 are pre-embedded in the precast concrete block 1 of the power distribution box during concrete pouring, which facilitates connection with the conduit 4 installed in the infill wall. Since those skilled in the art can further determine the size of the precast concrete block 1 of the strong and weak electrical box based on factors such as the size of the strong and weak electrical box, wall thickness, block module, and installation location, and since the size of the precast concrete block 1 of the strong and weak electrical box will vary depending on the circumstances, those skilled in the art can select the size of the precast concrete block 1 of the strong and weak electrical box according to the circumstances. Therefore, the size of the precast concrete block 1 of the strong and weak electrical box will not be described.

[0024] (II) Mold setup for precast concrete blocks 1 of the strong and weak current electrical boxes: (e.g.) Figure 3As shown, mold 2 includes a base plate 21, side plates 22, limiting strips 24, reinforcing clamps 23, and triangular wooden wedges 26. The side plates 22 are connected end-to-end and mounted on the surface of the base plate 21, forming a cuboid mold cavity. The limiting strips 24 are positioned on the surface of the base plate 21 and surround the outside of the side plates 22, restricting movement at the bottom of the side plates 22. The reinforcing clamps 23 surround the outside of the top of the side plates 22, restricting movement at the top. The triangular wooden wedges 26 are positioned in the gap between the inner wall of the reinforcing clamps 23 and the outer wall of the side plates 22. The limiting strips 24 and the reinforcing clamps 23 are both cuboid frame structures, allowing for quick assembly. When assembling mold 2, the triangular wooden wedges 26 are positioned in the gap between the inner wall of the reinforcing clamps 23 and the outer wall of the side plates 22 on opposite sides. Typically, two triangular wooden wedges 26 are used symmetrically on each side for tightening.

[0025] (III) Assembly and pouring of precast concrete blocks for electrical boxes: Assemble mold 2 from step (II), as follows: Figure 4 As shown, multiple limiting pads 25 are placed on the surface of the bottom plate 21 in the cuboid cavity formed by the side plates 22. Then, the inner box 12 of the power and weak current box is inverted and placed in the middle of the inner cavity of the cuboid mold formed by the side plates 22. The bottom end face of the inner box 12 of the power and weak current box is supported by the limiting pads 25. In this embodiment, four limiting pads 25 are set. The four limiting pads 25 can just support the four corners of the inner box 12 of the power and weak current box. A conduit cup locking buckle 13 is set between the reserved hole of the inner box 12 of the power and weak current box and its corresponding side plate 22 so that the reserved hole is formed after molding. Concrete is injected into the inner cavity of the cuboid mold and vibrated. After the strength is reached and the mold is demolded, the precast concrete block 1 of the power and weak current box is obtained.

[0026] (iv) Installation of conduit 4 in precast concrete block 1 of the electrical box for strong and weak current distribution: When the wall is built to the installation position of the electrical box for strong and weak current distribution, first lay mortar at the bottom, then place the precast concrete block 1 of the electrical box for strong and weak current distribution with the opening facing outwards in the corresponding installation position. After adjusting the balance, use mortar to build it together with the surrounding wall blocks, and install the conduit 4 in advance, so that the conduit 4 is connected to the inlet end conduit cup lock buckle 13 embedded in the reserved hole at the top of the precast concrete block 1 of the electrical box for strong and weak current distribution. Figure 5 As shown.

[0027] (v) Processing and construction of infill wall blocks: During the process of constructing the infill wall from bottom to top, such as Figure 5 As shown, the section where the conduit 4 has been pre-installed is replaced by two blocks II3 of thickness D / 2, which are combined and constructed instead of the original block I5 of thickness D. A slot 31 for positioning the conduit 4 is made on the inner side of one of the blocks II3 according to the position and diameter of the conduit 4, and the conduit 4 is concealed between the two blocks II3 of thickness D / 2.

[0028] After step (five), when the wall capping bricks are laid diagonally past the conduit 4, the capping bricks are cut into V-notches, and the conduit 4 is concealed within the V-notches 61 of the capping bricks. For example... Figure 6 As shown, the conduit 4 is concealed inside the capping brick 6 using the V-shaped notch 61.

[0029] This invention involves prefabricating the strong and weak current boxes with concrete and embedding the conduits within the wall, completing the process as a single unit during masonry construction. This eliminates the need for cutting and chiseling the infill wall surface before installation and sealing, making the construction simple, convenient, safe, and reliable. It solves the problems of difficulty in chiseling holes and trenches, dust pollution, and high labor and material costs for subsequent sealing in existing technologies, which affect the construction progress.

[0030] The above embodiments are merely preferred embodiments of the present invention. The structure of the present invention is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, 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 prefabricated concealed strong and weak electric box threading pipe and filled wall block integrated construction method, characterized in that, comprising the steps of: The application relates to a construction method of a prefabricated concrete block (1) for a strong-weak electric box, which comprises the following steps: (1) determining the size and structure of the prefabricated concrete block (1) for the strong-weak electric box; (2) setting a mold for the prefabricated concrete block (1) for the strong-weak electric box; (3) assembling and pouring the mold for the prefabricated concrete block (1) for the strong-weak electric box; (4) installing a threading pipe in the prefabricated concrete block (1) for the strong-weak electric box; and (5) processing and building wall body blocks, wherein the construction method of each step is as follows: (1) determining the structure and size of the prefabricated concrete block (1) for the strong-weak electric box: the prefabricated concrete block (1) for the strong-weak electric box is composed of a strong-weak electric box inner box (12) and a concrete block (11) formed outside the strong-weak electric box inner box (12); the strong-weak electric box inner box (12) is a box body formed by pouring and molding concrete; the strong-weak electric box inner box (12) is a cuboid box body with a hollow side wall on one side; the concrete block (11) is integrally surrounded on the bottom surface and the four surrounding side surfaces of the strong-weak electric box inner box (12) to form an integrated whole structure; the upper and lower side walls of the strong-weak electric box inner box (12) and the concrete blocks connected therewith are connected through a plurality of pre-buried pipe cup lock buckles (13) to form reserved holes; (2) setting the mold for the prefabricated concrete block (1) for the strong-weak electric box: the mold (2) comprises a bottom plate (21), a side plate (22), a limiting clamping strip (24), a reinforcing clamping hoop (23) and a triangular wooden wedge (26); the side plate (22) is connected at the head and tail and is installed on the surface of the bottom plate (21); the side plate (22) is surrounded to form a cuboid mold inner cavity; the limiting clamping strip (24) is arranged on the surface of the bottom plate (21) and is surrounded outside the side plate (22) to limit the movement of the bottom end of the side plate (22); the reinforcing clamping hoop (23) is surrounded outside the top end of the side plate (22) to limit the movement of the top end of the side plate (22); and the triangular wooden wedge (26) is arranged in the gap between the inner side wall of the reinforcing clamping hoop (23) and the outer side wall of the side plate (22); (3) assembling and pouring the mold for the prefabricated concrete block (1) for the strong-weak electric box: the mold (2) in step (2) is assembled, a plurality of limiting cushion blocks (25) are arranged on the surface of the bottom plate (21) in the cuboid inner cavity surrounded by the side plate (22), the strong-weak electric box inner box (12) is inverted and buckled in the middle of the cuboid mold inner cavity surrounded by the side plate (22), and the bottom end surface of the strong-weak electric box inner box (12) is supported by the limiting cushion blocks (25); the pipe cup lock buckle (13) is arranged between the reserved hole of the strong-weak electric box inner box (12) and the corresponding side plate (22); concrete is injected into the cuboid mold inner cavity and is vibrated and compacted; after the strength is formed and the mold is removed, the prefabricated concrete block (1) for the strong-weak electric box is obtained; (4) installing the threading pipe (4) in the prefabricated concrete block (1) for the strong-weak electric box: when the wall body is built to the installation position of the strong-weak electric box, sand mortar is first laid at the bottom, the prefabricated concrete block (1) for the strong-weak electric box is placed in the corresponding installation position with the opening facing outward, the sand mortar is used to build and form the surrounding wall body blocks, the threading pipe (4) is installed in advance, and the threading pipe (4) is connected and connected with the inlet pipe cup lock buckle (13) pre-buried in the reserved hole at the top of the prefabricated concrete block (1) for the strong-weak electric box.(five) filling wall block processing and masonry: in the filling wall from bottom to top masonry process, the part through the wire pipe (4) has been installed in advance, the original one block thickness D block I (5) is replaced by two blocks thickness D / 2 block II (2) combined masonry, and the inner side of one of the block II (2) is provided with a slot (31) according to the position and diameter of the wire pipe (4), and the wire pipe (4) is hidden in the two blocks thickness D / 2 block II (2); the limiting clamping strip (24) and the reinforcing clamping hoop (23) in step (two) are rectangular frame structures, and the triangular wedge (26) is arranged in the gap between the inner side wall of the opposite two reinforcing clamping hoops (23) and the outer side wall of the side plate (22) when the mold is assembled; after the step (five), when the wall top brick (6) is inclined and laid through the wire pipe part, the wall top brick (6) is cut into V notch (61) and the wire pipe is hidden in the V notch (61) of the wall top brick (6).

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