Reburied electromechanical pipeline junction box and construction method thereof

Abstract

The embodiment of the invention provides a re-buried electromechanical pipeline junction box and a construction method thereof, the re-buried electromechanical pipeline junction box is applied to built-in water supply and drainage pipelines and water supply and drainage main pipes of a fabricated building, and the re-buried electromechanical pipeline junction box comprises a junction box main body, an upper cover plate, a lower cover plate and a junction box preformed groove female die; the junction box preformed groove female die is used for preforming a mounting groove for the junction box main body; the junction box main body is matched with the mounting groove; the upper cover plate is connected to the top of the junction box main body; the lower cover plate is connected to the bottom of the junction box body. According to the embodiment of the invention, in the fabricated building, the connection of the water supply and drainage branch pipes, the floor drain and the main pipe can be realized by only reserving the water supply and drainage point branch pipes and utilizing the tolerance range of the junction box main body per se in the built-in water supply and drainage system of the module; compared with a water supply and drainage system of a traditional building, the reburied electromechanical pipeline junction box can replace a water supply and drainage pipe well and an electric well, and the cost is low; and the construction efficiency and tolerance can be improved for connection of the built-in water supply and drainage pipeline of the fabricated building or the water supply and drainage main pipe of the building.

Description

Technical Field

[0001] The invention relates to the technical field of building water supply and drainage system construction, and in particular to a reburied electromechanical pipeline junction box and a construction method thereof. Background Art

[0002] In the construction of built-in water supply and drainage pipelines in prefabricated buildings, due to the bottom space limitations of the building module monomer and the packaging and transportation requirements, the water supply and drainage pipelines cannot pass through the bottom plate and use floor drains like traditional buildings. Therefore, the current construction method used for the water supply and drainage system of prefabricated buildings is wall drainage and floor drain drainage, and the pipelines need to pass through the outer wall. With the wall drainage and floor drain construction method, on the one hand, the construction efficiency decreases as the construction difficulty and construction accuracy increase; on the other hand, the water supply and drainage main pipes are attached to the building facade for installation, which not only affects the appearance, but also requires the construction of scaffolding before construction, which increases the complexity, danger and construction cost of on-site operations, and seriously restricts the advantage of prefabricated building construction efficiency.

[0003] In addition, in the construction of water supply and drainage systems in traditional buildings, due to the diversity and complexity of the building structures, the reserved positions and sizes of the pipe wells are usually difficult to accurately meet the requirements of the subsequent laying of water supply and drainage pipes, resulting in frequent pipe bending and installation obstructions during the construction process, resulting in increased construction costs and reduced construction efficiency. Summary of the invention

[0004] The embodiment of the present invention provides a re-buried electromechanical pipeline junction box and a construction method thereof, aiming to solve the problems of low efficiency, low tolerance and high cost in the connection construction of built-in water supply and drainage pipelines and building water supply and drainage trunk pipelines of traditional prefabricated buildings.

[0005] In the first aspect, an embodiment of the present invention provides a re-buried electromechanical pipeline junction box, which is used for built-in water supply and drainage pipelines in prefabricated buildings and building water supply and drainage main pipes, and comprises a junction box body, an upper cover plate, a lower cover plate and a junction box reserved groove master mold; the junction box reserved groove master mold is used to preset an installation groove for the junction box body; the junction box body is adapted to the installation groove; the upper cover plate is connected to the top of the junction box body; the lower cover plate is connected to the bottom of the junction box body.

[0006] In some embodiments, the docking box body includes a main body, a fixing portion and a raised portion; the fixing portion is vertically arranged on the inner surface of the main body and adjacent to the top of the main body; the raised portion is vertically arranged on the top outer surface of the main body; the fixing portion is used to fix the upper cover plate.

[0007] In some embodiments, the raised portion is provided with a first groove, a first connecting member and a second connecting member; the first connecting member and the second connecting member are respectively arranged on opposite sides of the first groove; the first groove and the end surface where the top of the main body is located are in the same plane.

[0008] In some embodiments, the docking box body further includes a handle; both ends of the handle are respectively connected to the first connecting member and the second connecting member; and the handle is adapted to the first groove.

[0009] In some embodiments, the docking box body includes a first bottom plate and a limiter; the first bottom plate and the limiter are both vertically fixed to the inner surface of the main body; the first bottom plate is located at the bottom of the main body and is in the same horizontal plane as the end surface of the bottom of the main body; the limiter is located above the first bottom plate.

[0010] In some embodiments, the lower cover includes a first lower cover body and a limiting hole; the limiting hole is arranged on the first lower cover body; the first lower cover body is clamped between the first bottom plate and the limiting hole; the limiting hole is adapted to the limiting member.

[0011] In some embodiments, the docking box body includes a second bottom plate; the second bottom plate is vertically fixed to the inner surface of the main body; the second bottom plate includes a horizontal portion and a vertical portion; one end of the horizontal portion is vertically fixed to the main body, and the other end is vertically fixed to the vertical portion; the horizontal portion and the bottom of the main body are in the same plane; the horizontal portion is parallel to the upper cover.

[0012] In some embodiments, the lower cover includes a second lower cover body and a limiting portion; the limiting portion is perpendicular to the second lower cover body; and the limiting portion abuts against a second groove formed between the vertical portion and the horizontal portion.

[0013] In some embodiments, according to any of the aforementioned embodiments, the interiors of the re-buried electromechanical conduit junction box, the junction box body, the upper cover plate and the lower cover plate are all filled with fire-resistant glue, and the fire-resistant time of the fire-resistant glue is 2-4 hours.

[0014] In a second aspect, an embodiment of the present invention further provides a construction method of a reburied electromechanical pipeline junction box, which is applied to the reburied electromechanical pipeline junction box in any of the aforementioned embodiments, and the method comprises:

[0015] When pouring concrete on the base plate, apply a release agent to the master mold of the reserved groove of the junction box and fix it in the preset area;

[0016] After the concrete of the base plate has initially solidified, the master mold of the reserved groove of the junction box is taken out from the preset area to complete the preset of the installation groove;

[0017] According to the position of the water supply and drainage main pipe at the bottom of the base plate and the diameter of the branch pipe at the water supply and drainage point, the first hole is opened on the lower cover plate;

[0018] Connect small branch pipes for water supply and drainage, floor drains for water supply and drainage and main pipes, and assemble the lower cover plate and the main body of the junction box;

[0019] After aligning the first hole with the water supply and drainage branch pipe, the lower cover plate is placed on the drainage branch pipe, and the gap between the first hole and the water supply and drainage branch pipe is sealed;

[0020] A second hole is opened at a corresponding position on the upper cover plate according to the hole on the lower cover plate;

[0021] After aligning the second hole with the small branch pipe for water supply and drainage, the upper cover plate is sleeved on the small branch pipe for drainage, and the gap between the second hole and the small branch pipe for water supply and drainage is sealed.

[0022] The embodiment of the present invention provides a reburied electromechanical pipeline junction box and a construction method thereof, which are applied to the built-in water supply and drainage pipelines of prefabricated buildings and the water supply and drainage trunk pipelines of buildings, and include a junction box body, an upper cover plate, a lower cover plate, and a master mold of a reserved groove of the junction box; the master mold of the reserved groove of the junction box is used to preset the installation groove for the junction box body; the junction box body is adapted to the installation groove; the upper cover plate is connected to the top of the junction box body; and the lower cover plate is connected to the bottom of the junction box body. In this embodiment, in the prefabricated building, its module built-in water supply and drainage system only needs to reserve the drainage point branch pipe, and the connection of the water supply and drainage branch pipe, floor drain and trunk pipe can be realized by using the tolerance range of the junction box body itself; in the water supply and drainage system of traditional buildings, the reburied electromechanical pipeline junction box in this embodiment can replace the water supply and drainage pipe well and the electricity well, and the cost is low; whether it is for the built-in water supply and drainage pipelines of prefabricated buildings or the water supply and drainage trunk pipelines of buildings, the construction efficiency and tolerance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of a reburied electromechanical pipeline junction box provided in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the top structure of a reburied electromechanical pipeline junction box provided in an embodiment of the present invention;

[0026] Figure 3 Another structural schematic diagram of the re-buried electromechanical pipeline junction box provided in an embodiment of the present invention;

[0027] Figure 4 A schematic structural diagram of a female mold for a reserved groove of a junction box in a re-buried electromechanical conduit junction box provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of the first lower cover plate body in the re-buried electromechanical pipeline junction box provided in an embodiment of the present invention;

[0029] Figure 6 A schematic flow chart of a construction method for a reburied electromechanical conduit junction box provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0032] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0033] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0034] See also Figures 1 to 6 , Figure 1 A schematic diagram of the structure of a reburied electromechanical pipeline junction box provided in an embodiment of the present invention; Figure 2 A schematic diagram of the top structure of a reburied electromechanical pipeline junction box provided in an embodiment of the present invention; Figure 3 Another structural schematic diagram of the re-buried electromechanical pipeline junction box provided in an embodiment of the present invention; Figure 4A schematic structural diagram of a female mold for a reserved groove of a junction box in a re-buried electromechanical conduit junction box provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the first lower cover plate body in the re-buried electromechanical pipeline junction box provided in an embodiment of the present invention; Figure 6 A schematic flow chart of a construction method for a reburied electromechanical conduit junction box provided in an embodiment of the present invention.

[0035] See again Figures 1 to 5 The buried electromechanical pipeline junction box provided in an embodiment of the present invention is applied to the built-in water supply and drainage pipelines of prefabricated buildings and the building water supply and drainage main pipelines, and includes a junction box body 100, an upper cover plate 200, a lower cover plate 300 and a junction box reserved groove master mold 400; the junction box reserved groove master mold 400 is used to preset an installation groove for the junction box body 100; the junction box body 100 is adapted to the installation groove; the upper cover plate 200 is connected to the top of the junction box body 100; the lower cover plate 300 is connected to the bottom of the junction box body 100.

[0036] In this embodiment, the reburied electromechanical pipe junction box can be applied to both the built-in water supply and drainage pipes of prefabricated buildings and the water supply and drainage main pipes of buildings. For the built-in water supply and drainage pipes of prefabricated buildings, due to the limited bottom space of the prefabricated building module monomers and the packaging and transportation requirements of the prefabricated building module monomers, the water supply and drainage pipes cannot directly pass through the module bottom plate as in traditional construction, so it is impossible to use floor drainage and floor drains to organize drainage. Therefore, for the built-in water supply and drainage pipes of prefabricated buildings, the construction method of the traditional drainage system usually adopts wall drainage and floor drains to organize drainage. The difference from using wall drainage and floor drains to organize drainage is that the built-in water supply and drainage system of the prefabricated building module only needs to reserve branches for drainage points. Through the tolerance range of the reburied electromechanical pipe junction box itself in this application, the secondary connection of the water supply and drainage branches, floor drains and main pipes of the prefabricated building can be realized, that is, the prefabricated building can realize floor drainage and floor drains through the reburied electromechanical pipe junction box in this application.

[0037] In addition, for the water supply and drainage systems of traditional buildings, in order to provide accurate positioning and guidance for the installation of pipelines, make the crossing construction of pipelines more convenient and quick, and make the layout of strong and weak current lines more neat and standardized, it is usually necessary to install water supply and drainage pipe wells and power wells. However, due to the diversity and complexity of building structures, the reserved positions and sizes of water supply and drainage pipe wells are usually difficult to accurately meet the subsequent laying requirements of water supply and drainage pipelines, resulting in frequent problems such as pipe bending and installation obstructions during construction, resulting in low construction efficiency. The re-buried electromechanical pipeline junction box in the present application can play the same role as the water supply and drainage pipe well and the power well, so that it can replace the casing that passes through the floor slab in the water supply and drainage pipe well and the strong and weak current bridge protection cover in the power well, so as to effectively improve the fault tolerance of pipeline installation.

[0038] Specifically, the reserved groove master mold 400 of the connection box is consistent with the space occupied by the connection box body 100. Common standard sizes of the connection box reserved groove master mold 400 and the connection box body 100 are 1000 mm * 1000 mm, 600 mm * 600 mm, 300 mm * 300 mm, etc. It can be customized according to the floor tile specifications or pipe well dimensions of the prefabricated building module to ensure perfect embedding and adaptation in different building scenarios, meeting both functional requirements and aesthetic requirements. The shapes of the two can be designed to be square, cylindrical or trapezoidal according to construction needs. It should be noted that the shapes and specifications of the connection box reserved groove master mold 400 and the connection box body 100 are not limited in the embodiment of the present application, and the two can be designed according to actual construction needs.

[0039] The main body 100 of the junction box is made of thin-walled stainless steel plates welded by sheet metal. This material has good strength, corrosion resistance and durability, and can adapt to the climatic conditions of various regions and the complex use environment inside the building. Whether it is an assembled building or a traditional building construction, it involves the construction step of pouring concrete on the base plate, which is usually called a module base plate in assembled buildings and a floor base plate in traditional building construction. For the convenience of explanation, the module base plate and the floor base plate are collectively referred to as base plates in the embodiments of the present application. Since the space occupied by the master mold 400 of the reserved groove of the junction box and the main body 100 of the junction box is consistent, when the concrete is poured on the base plate, after the master mold 400 of the reserved groove of the junction box is pressed and taken out, the installation groove formed can be adapted to the main body 100 of the junction box.

[0040] The specifications of the upper cover plate 200 and the lower cover plate 300 can be respectively matched with the top and bottom of the connection box body 100, so that after the upper cover plate 200 and the lower cover plate 300 are respectively fixedly connected to the top and bottom of the connection box body 100, the whole is a sealed box body with a hollow interior. The shapes of the upper cover plate 200 and the lower cover plate 300 are set according to actual construction needs. For example, the upper cover can be a square thick plate, and the lower cover plate 300 can be a circular thick plate. In addition, both the upper cover plate 200 and the lower cover plate 300 adopt a perforated design, so that holes can be accurately opened on the upper cover plate 200 and the lower cover plate 300 according to the positions of the water supply and drainage main pipes and branches, thereby realizing the connection of mechanical and electrical pipelines between floors.

[0041] How the re-buried electromechanical pipe junction box in this application is applied to the water supply and drainage systems of prefabricated buildings and traditional buildings is summarized as follows: when pouring concrete on the base plate, the junction box reserved groove master mold 400 coated with a release agent is fixed in the preset area of ​​the base plate (the preset area is the area used to connect pipes or pipe wells according to design requirements), and the junction box reserved groove master mold 400 is taken out after the concrete of the base plate is initially set. At this time, an installation groove will be formed on the base plate, and the installation groove is used for the subsequent installation of the junction box body 100. Measure the position of the drainage main pipe under the base plate and combine the relative position of the water supply and drainage point branch pipes built into the prefabricated building module, and use professional hole-opening tools to accurately open holes in the upper cover plate 200 and the lower cover plate 300; or measure the relative position of the lower riser and bridge in the traditional building and verify the collision between the pipeline and the building structure, and use professional hole-opening tools to accurately open holes in the upper cover plate 200 and the lower cover plate 300. The lower cover plate 300 with holes is fixed to the bottom of the junction box body 100 to realize the assembly of the lower cover plate 300 and the junction box body 100. The pipes of the branch pipes or the pipe wells are aligned and passed through the holes on the lower cover plate 300 to realize the assembly of the junction box body 100 and the branch pipes or the pipe wells. Finally, the holes on the upper cover plate 200 are penetrated through the branch pipes or the pipe wells and then fixed to the top of the junction box body 100. So far, the buried electromechanical pipeline junction box has been applied to the water supply and drainage systems of prefabricated buildings and traditional buildings.

[0042] In one embodiment, if Figure 1 as well as Figure 3 As shown, the docking box body 100 includes a main body 110, a fixing portion 120 and a protruding portion 130; the fixing portion 120 is vertically arranged on the inner surface of the main body 110 and is adjacent to the top of the main body 110; the protruding portion 130 is vertically arranged on the top outer surface of the main body 110; the fixing portion 120 is used to fix the upper cover plate 200.

[0043] In this embodiment, the docking box body 100 includes a main body 110, a fixing portion 120 and a protruding portion 130. The fixing portion 120 is used to abut against the upper cover plate 200, and is vertically arranged around the inner surface of the main body 110, and is adjacent to the top of the main body 110. The diameter of the upper cover plate 200 is slightly smaller than the diameter of the end face where the upper surface of the docking box body 100 is located, and the shape of the upper cover plate 200 is the same as the shape of the top of the docking box body 100, so as to match the docking box body 100. When the upper cover plate 200 is placed on the top of the docking box body 100, the fixing portion 120 can abut the upper cover plate 200 against the top of the docking box body 100. This installation method does not require complicated tools or additional connecting parts, is simple and quick to operate, and can improve installation efficiency.

[0044] In one embodiment, if Figure 1 as well as Figure 2 As shown, the raised portion 130 is provided with a first groove 131, a first connecting member 132 and a second connecting member 133; the first connecting member 132 and the second connecting member 133 are respectively arranged on two opposite sides of the first groove 131; the first groove 131 and the end surface where the top of the main body 110 is located are in the same plane.

[0045] Specifically, the docking box body 100 further includes a handle; two ends of the handle are respectively connected to the first connecting member 132 and the second connecting member 133 ; and the handle is adapted to the first groove 131 .

[0046] In this embodiment, the raised portion 130 is vertically arranged on the outer surface of the top of the main body 110. The raised portion 130 is provided with a first groove 131, which is adapted to the handle (not shown in the figure) to hide the handle, so that the handle will not be exposed abruptly when the junction box is placed or installed normally, thus maintaining the neatness of the overall appearance of the junction box. The handle is located at the top of the junction box body 100, which is ergonomically designed and made of non-slip material (for example, the surface of the handle has a textured metal or non-slip rubber coating) so that the construction personnel can hold it firmly.

[0047] The first groove 131 is provided with a first connecting member 132 and a second connecting member 133 on opposite sides thereof, and the two ends of the handle are fixed to the first groove 131 by the first connecting member 132 and the second connecting member 133. The first connecting member 132 and the second connecting member 133 are specially designed and reinforced, and can stably transmit the pulling force and withstand a large force, thereby ensuring the safety and convenience of lifting and reburying the docking box.

[0048] In one embodiment, if Figure 1 as well as Figure 2 As shown, the junction box body 100 includes a first bottom plate 140 and a limiter 150; the first bottom plate 140 and the limiter 150 are both vertically fixed to the inner surface of the main body 110; the first bottom plate 140 is located at the bottom of the main body 110, and is in the same horizontal plane as the end surface of the bottom of the main body 110; the limiter 150 is located above the first bottom plate 140.

[0049] In this embodiment, the first bottom plate 140 is located at the bottom of the junction box body 100, and it is a hollow structure so that the branch pipe or pipe diameter can pass through the bottom of the junction box. Specifically, it is vertically fixed to the inner surface of the main body 110 of the junction box body 100, and is located at the bottom of the main body 110, and is used to receive the first lower cover plate 300. The stopper 150 can be a raised stopper, which is located above the first bottom plate 140. The spacing between the stopper 150 and the first bottom plate 140 is the same as the distance between the upper surface and the lower surface of the first lower cover plate 300 (the distance between the upper surface and the lower surface of the first lower cover plate 300 is also the thickness of the first lower cover plate 300), so as to realize the first lower cover plate 300 being clamped and fixed on the first bottom plate 140. The number of the stopper 150 can be set according to actual needs. The stopper 150 is used to clamp the lower cover plate 300 between the first bottom plate 140 and the stopper 150.

[0050] Specifically, Figure 5 As shown, the lower cover plate 300 includes a first lower cover plate body 310 and a limiting hole 320; the limiting hole 320 is arranged on the first lower cover plate body 310; the first lower cover plate body 310 is clamped between the first bottom plate 140 and the limiting hole 320; the limiting hole 320 is adapted to the limiting member 150.

[0051] In this embodiment, the first lower cover body 310 can be a circular thick plate. The number and size of the limiting holes 320 are equal to the limiting member 150, and the limiting holes 320 are arranged on the outer edge of the first lower cover body 310 so that the limiting member 150 can be adapted to the limiting holes 320. For example, if the number of limiting members 150 is two, and the two limiting members 150 are fixed on opposite sides of the inner wall of the docking box body 100, the number of limiting holes 320 is also two, and the two limiting holes 320 are arranged on the outer edges of the opposite sides of the first cover body. Specifically, when assembling the first lower cover body 310 and the docking box body 100, after the limiting holes 320 on the first lower cover body 310 are aligned with the limiting member 150, the first lower cover body 310 is rotated by a certain angle to achieve the closure of the bottom of the docking box body 100. The fixing method of rotating a certain angle after alignment increases the connection stability between the first lower cover body 310 and the docking box body 100. Compared with a simple insertion or snap-on fixation, the rotational fixation method can withstand greater tension and shear force, thereby preventing the first lower cover body 310 from accidentally falling off during use.

[0052] In another embodiment, if Figure 3As shown, the junction box body 100 includes a second bottom plate 160; the second bottom plate 160 is vertically fixed to the inner surface of the main body 110; the second bottom plate 160 includes a horizontal portion and a vertical portion; one end of the horizontal portion is vertically fixed to the main body 110, and the other end is vertically fixed to the vertical portion; the horizontal portion is in the same plane as the bottom of the main body 110; the horizontal portion is parallel to the upper cover 200.

[0053] In this embodiment, the second bottom plate 160 is vertically fixed to the bottom of the inner surface of the junction box body 100, wherein the second bottom plate 160 includes a vertical portion and a horizontal portion. One side of the horizontal portion is vertically fixed to the bottom of the inner surface of the junction box body 100, and is in the same plane as the bottom of the junction box body 100. The vertical portion is fixed to the other side of the horizontal portion, and the bottom of the vertical portion is in the same plane as the lower surface of the horizontal portion (the upper surface of the horizontal portion is the surface facing the upper cover plate 200, and the lower surface of the horizontal portion is opposite to the upper surface). That is, the vertical portion and the horizontal portion are fixed to form an "L" shape, and the "L"-shaped second bottom plate 160 is fixedly connected to the bottom of the junction box body 100, wherein the second bottom plate 160 and the junction box body 100 can be fixedly connected by welding.

[0054] Specifically, the lower cover plate 300 includes a second lower cover plate body 330 and a limiting portion 340; the limiting portion 340 is perpendicular to the second lower cover plate body 330; and the limiting portion 340 abuts against a second groove formed between the vertical portion and the horizontal portion.

[0055] In this embodiment, the second lower cover body 330 can be a quadrilateral thick plate, or other polygonal thick plates or circular thick plates, as long as the second lower cover body 330 can be matched with the bottom of the docking box body 100. In different application scenarios, according to the specific shape of the docking box body 100, the internal structure layout, and the use requirements, etc., the second lower cover body 330 of a suitable shape can be selected, so that the design of the docking box can better meet the diverse needs. Taking the second lower cover body 330 as a quadrilateral thick plate as an example, a limiting portion 340 is vertically fixed on the lower surface of the second lower cover body 330, wherein the limiting portion 340 can be vertically fixed on two opposite sides of the lower surface of the second cover body or vertically and annularly arranged on the four sides of the lower surface of the second cover body.

[0056] The limiting part 340 is adjacent to the side of the second lower cover body 330, and is used to fix the second lower cover body 330 to the bottom of the docking box body 100 to close the bottom of the docking box body 100. The groove formed by the "L"-shaped vertical part and the horizontal part on the second bottom plate 160 being fixed to the bottom of the docking box body 100 as a whole is the second groove. Specifically, when the second lower cover body 330 is assembled to the bottom of the docking box body 100, it is only necessary to abut the limiting part 340 on the second lower cover body 330 in the second groove to close the bottom of the docking box body 100. The design of the limiting part 340 and the second groove provides a clear positioning reference for installation. The construction personnel can easily align the limiting part 340 according to the position of the second groove, so as to accurately install the second lower cover body 330 to the preset position. Compared with some installation methods without clear positioning structures, this design effectively reduces the repeated adjustments caused by inaccurate position during installation, and further improves the convenience and accuracy of installation.

[0057] In one embodiment, the interior of the connection box body 100, the upper cover plate 200 and the lower cover plate 300 are all filled with fireproof glue, and the fireproof time of the fireproof glue is 2-4 hours.

[0058] In this embodiment, the interior of the junction box body 100, the interior of the upper cover plate 200, and the interior of the lower cover plate 300 are filled with waterproof and fireproof foam, achieving all-round waterproof and fireproof protection. This filling method can effectively fill the tiny gaps and holes inside and prevent moisture from entering the interior of the junction box from any possible channel. The fireproof components in the waterproof and fireproof foam can play a flame retardant role in the event of a fire. When the ambient temperature rises to a certain level, the foam will form a carbonized layer to prevent the spread of flames. Its fireproof time can be up to 3 hours to meet the requirement of the building code that the fire resistance limit of the floor should be greater than 2 hours. Therefore, by filling with waterproof and fireproof foam, the safety of the junction box in the event of a fire can be effectively improved, preventing the fire from spreading through the holes in the floor, and providing protection for building fire safety.

[0059] like Figure 6 As shown, an embodiment of the present invention further provides a construction method of a reburied electromechanical pipeline junction box, which is applied to the reburied electromechanical pipeline junction box in any of the aforementioned embodiments, and the method includes:

[0060] S1. When pouring concrete on the base plate, apply release agent to the master mold of the reserved groove of the junction box and fix it in the preset area.

[0061] Among them, the preset area refers to the area where the buried electromechanical pipeline junction box is to be installed according to the design requirements of the construction drawings.

[0062] In this embodiment, whether it is an assembled building or a traditional building construction, the construction step of pouring concrete base plate is involved, wherein it is usually called a module base plate in assembled buildings and a floor base plate in traditional building construction. For the convenience of explaining the embodiments of the present application, the module base plate and the floor base plate are collectively referred to as base plates. When pouring concrete base plates, the outer surface of the reserved groove master mold 400 of the junction box is evenly coated with a release agent and fixed to the area where the buried electromechanical pipeline junction box is to be installed. After applying the release agent, after the concrete pouring is completed and reaches a certain strength, the master mold can be easily detached from the reserved groove. This not only reduces the manpower and time costs required for demoulding, avoids damage to the reserved groove master mold 400 of the junction box and the poured concrete due to forced demoulding, but also ensures that the shape of the installation groove is complete and the size is accurate, laying the foundation for the precise installation of the subsequent junction box body 100.

[0063] S2. After the concrete of the base plate has initially solidified, the master mold of the reserved groove of the junction box is taken out from the preset area to complete the preset of the installation groove.

[0064] In this embodiment, the junction box reserved groove master mold 400 is used to preset the installation groove for installing the junction box body 100. The junction box reserved groove master mold 400 has the same size as the junction box body 100, so that the junction box body 100 can be adapted to the installation groove. After the junction box reserved groove master mold 400 with a release agent applied to the outer surface is placed in the preset area where the junction box body 100 is to be installed, the junction box reserved groove master mold 400 can be taken out from the preset area after the concrete is initially set, and an installation groove can be formed at the preset area.

[0065] S3. A first hole is opened on the lower cover plate according to the position of the water supply and drainage main pipe at the bottom of the base plate and the diameter of the branch pipe at the water supply and drainage point.

[0066] The first hole refers to a hole opened at a corresponding position on the lower cover plate 300 according to the requirements of the construction drawing design.

[0067] In this embodiment, firstly, with the help of accurate measuring tools, such as laser rangefinder and caliper, according to the actual position of the water supply and drainage main pipe and the dimensional data of the branch pipe diameter at the water supply and drainage point, the position and size of the first hole on the lower cover plate 300 are accurately planned on the drawing. Then different professional hole-opening equipment is selected according to the material of the lower cover plate 300. For example, for the lower cover plate 300 made of metal material, professional hole-opening equipment (such as electric hole opener) is used according to the thickness of the lower cover plate 300, and a suitable hole-opening drill bit is selected, and the rotation speed and feed rate of the hole opener are adjusted to ensure that the hole-opening process is smooth and burr-free; for the lower cover plate 300 made of plastic material, a hot melt hole-opening tool can be used to make the hole edge smooth and the size accurate under the premise of controlling the temperature. In the hole-opening process, each hole is completed, and a caliper and other tools are used for measurement and verification to ensure that the diameter error of the hole is within ±1mm and the position deviation does not exceed ±3mm.

[0068] By accurately measuring and carefully opening the holes, the lower cover 300 is precisely matched with the small branch pipes for water supply and drainage. This precise matching makes the gap between the hole and the branch pipe smaller, which is convenient for effective sealing. Good sealing performance prevents leakage during the water supply and drainage process, avoids short circuit and damage of electrical components inside the junction box caused by leakage, and also prevents odor from entering the room through the drainage pipe, ensuring the hygiene and safety of the indoor environment.

[0069] S4. Connect the small branch pipes for water supply and drainage, the floor drain for water supply and drainage and the main pipe, and assemble the lower cover plate and the main body of the junction box.

[0070] In this embodiment, when connecting the small branch pipe of water supply and drainage to the main pipe, a suitable connection method is selected according to different pipe materials. For example, for PVC pipes, special PVC glue is used for socket connection, and glue is evenly applied to the connection part of the pipe. The insertion depth should meet the relevant standards and is generally 1.5-2 times the pipe diameter. For metal pipes, welding or pipe fittings can be used for connection. When welding, the weld must be uniform and firm, without false welding or leaking welding. When connecting pipe fittings, ensure that the pipe fittings and the pipe are well sealed, and sealing tape or sealant can be used for sealing.

[0071] When connecting the water supply and drainage floor drain to the main pipe, the sealing of the connection must also be ensured. The floor drain and the drainage branch pipe can be connected with a sealing rubber ring or sealant. The floor drain should be accurately installed at the reserved interface of the drainage branch pipe, ensuring that the drainage outlet of the floor drain is aligned with the center of the branch pipe, with a deviation of no more than ±2mm.

[0072] Before assembling the lower cover plate 300 and the docking box body 100, first clean the connection parts of the lower cover plate 300 and the docking box body 100 to remove dust, oil and other impurities. For the connection between the first lower cover plate body 310 and the docking box body 100, the limiting hole 320 on the first lower cover plate body 310 should be aligned with the limiting member 150 on the docking box body 100, and after pressing the first lower cover plate body 310 onto the first bottom plate 140 at the bottom of the docking box body 100, the first lower cover plate body 310 is rotated to seal the bottom of the docking box body 100. For the connection between the second lower cover plate body 330 and the docking box body 100, the limiting part 340 on the second lower cover plate body 330 should be aligned with the second groove on the second bottom plate 160 at the bottom of the docking box body 100 to achieve the assembly of the second lower cover plate body 330 and the docking box body 100.

[0073] S5. After aligning the first hole with the small branch pipe for water supply and drainage, the lower cover plate is placed on the small branch pipe for drainage, and the gap between the first hole and the small branch pipe for water supply and drainage is sealed.

[0074] In this embodiment, the first hole on the lower cover plate 300 is aligned with the water supply and drainage branch pipe, and the lower cover plate 300 is slowly and accurately mounted on the drainage branch pipe. During the mounting process, a positioning tool can be used to assist in ensuring that the central axis of the lower cover plate 300 and the drainage branch pipe coincide with each other, with a deviation of no more than ±2 mm.

[0075] When sealing the gap between the first hole and the small branch pipe for water supply and drainage, first clean up the debris around the gap, and then choose a suitable sealing material, such as sealant or sealing tape. For sealant, use a glue gun to evenly inject the sealant into the gap to ensure that the sealant fills the entire gap. For sealing tape, wrap it around the gap with no less than 3 layers, and ensure that the tape fits tightly without wrinkles.

[0076] S6. Open a second hole on the upper cover at a corresponding position according to the hole on the lower cover.

[0077] The second hole refers to a hole opened at a corresponding position on the upper cover plate 200 according to the requirements of the construction drawing design, and the second hole corresponds to the first hole on the lower cover plate 300 .

[0078] In this embodiment, the position of the second hole is accurately marked on the upper cover plate 200 according to the position of the first hole on the lower cover plate 300, using precise measuring tools such as a square and a caliper, based on the position of the upper cover plate 200 after the upper cover plate 200 and the lower cover plate 300 are assembled. Ensure that the center deviation between the second hole and the first hole does not exceed ±2 mm. Specifically, the second hole can be opened on the upper cover plate 200 using the same method and tools as the hole opening on the lower cover plate 300.

[0079] S7. After aligning the second hole with the small branch pipe for water supply and drainage, put the upper cover plate on the small branch pipe for drainage, and seal the gap between the second hole and the small branch pipe for water supply and drainage.

[0080] In this embodiment, the second hole of the upper cover plate 200 is aligned with the water supply and drainage branch pipe, and the upper cover plate 200 is slowly mounted on the drainage branch pipe to ensure that the positions of the upper cover plate 200 and the lower cover plate 300 correspond to each other and coincide with the central axis of the drainage branch pipe, with a deviation of no more than ±2 mm. Specifically, after the second hole is aligned with the water supply and drainage branch pipe, the upper cover plate 200 is mounted on the drainage branch pipe and the upper cover plate 200 is pressed downward until the upper cover plate 200 is matched with the fixing portion 120 at the top of the junction box body 100, so as to realize the assembly of the upper cover plate 200 and the junction box body 100. Check the closing condition between the lower cover plate 300 and the upper cover plate 200 and the junction box body 100, and use sealant to seal the existing gaps.

[0081] The reburied electromechanical pipe junction box provided in the embodiment of the present application can be applied to the water supply and drainage system of prefabricated buildings and traditional buildings. The specific application construction process is described as follows:

[0082] First, for the application of water supply and drainage system in prefabricated buildings: First, the prefabricated building module design stage: according to the floor tile specifications in the architectural design drawings and the water supply and drainage pipeline layout determined in the mechanical and electrical design drawings, produce a complete set of corresponding specifications and sizes of the connection box main body 100, upper cover plate 200, lower cover plate 300 and matching connection box reserved groove master mold 400.

[0083] Secondly, during the manufacturing stage of the prefabricated building factory: when the module base plate is cast, the master mold 400 of the reserved groove of the junction box is coated with a release agent and fixed on the base plate casting template according to the design positioning. After the module base plate is initially solidified, the master mold is taken out to complete the preset installation groove of the junction box body 100.

[0084] Then, in the stage of packing and transporting the prefabricated building, the upper cover plate 200 and the snap-on lower cover plate 300 of the junction box are assembled in advance in the junction box body 100, and the above-mentioned complete set of accessories are installed in the installation holes reserved in advance. The junction box body 100 needs to be fixed to the module bottom plate with tape to avoid the loss of accessories, improve transportation safety, and reduce the difficulty of secondary deployment of materials on site, facilitating on-site installation operations.

[0085] Finally, the on-site construction stage of the prefabricated building: After the prefabricated building module is installed on site, the main body 100 of the junction box is removed from the base plate. Measure the position of the water supply and drainage main pipe under the base plate, and use professional hole-opening tools to accurately open holes in the upper cover plate 200 and the lower cover plate 300 in combination with the relative position of the water supply and drainage point branches built into the module. Insert the upper cover plate 200 and the lower cover plate 300 into the pipeline to complete the connection of the water supply and drainage pipeline or the installation of the floor drain. Among them, the gap between the junction box main body 100 and the concrete base plate of the module, as well as the gap between the pipeline, the floor drain and the cover plate should be sealed with fireproof sealant. Check the closure of the upper cover plate 200 and the lower cover plate 300, and make appropriate adjustments if necessary to ensure the sealing and stability of the entire buried electromechanical pipeline junction box.

[0086] Second, for the application of water supply and drainage systems in traditional building construction: First, the traditional building pipe well design stage: according to the water supply and drainage pipe well, electrical well dimensions in the building design drawings and the water supply and drainage pipeline layout determined in the electromechanical design drawings, a complete set of corresponding specifications and dimensions of the junction box main body 100, upper cover plate 200, lower cover plate 300 and matching junction box reserved groove master mold 400 are produced.

[0087] Secondly, in the traditional building pipe well construction stage: when pouring the base plate on each floor, the master mold 400 of the reserved groove of the junction box is coated with a release agent, positioned according to the design of the water supply and drainage pipe well and the electric well, and fixed on the base plate pouring template. After the base plate is initially solidified, the master mold is taken out to complete the reservation of the installation groove of the junction box body 100, that is, the reservation of the pipe well hole.

[0088] Finally, the installation stage of the pipe wells and pipelines in traditional buildings: After the installation of the lower-level pipe wells and pipelines is completed, the main body 100 of the junction box is buried in the reserved installation groove. Measure the relative positions of the lower-level risers and bridges, and verify that the collision between the pipelines and the building structure is correct. Use professional hole-opening tools to accurately open holes in the upper cover plate 200 and the lower cover plate 300 of the junction box. Insert the upper cover plate 200 and the lower cover plate 300 into the pipelines to complete the connection of the pipelines between floors. Among them, the gap between the junction box main body 100 and the building concrete bottom plate, as well as the gap between the pipe, bridge and cover plate should be sealed with fire-retardant sealant. Check the closure of the upper cover plate 200 and the lower cover plate 300, and make appropriate adjustments if necessary to ensure the sealing and stability of the entire buried electromechanical pipeline junction box.

[0089] The embodiment of the present invention provides a re-buried electromechanical pipeline junction box and a construction method thereof, which is applied to the built-in water supply and drainage pipelines of prefabricated buildings and the building water supply and drainage main pipelines, and includes a junction box body 100, an upper cover plate 200, a lower cover plate 300 and a junction box reserved groove master mold 400; the junction box reserved groove master mold 400 is used to preset an installation groove for the junction box body 100; the junction box body 100 is adapted to the installation groove; the upper cover plate 200 is connected to the top of the junction box body 100; the lower cover plate 300 is connected to the bottom of the junction box body 100. In this embodiment, in the prefabricated building, the built-in water supply and drainage system of the module only needs to reserve branches for the drainage points, and the connection between the water supply and drainage branches, floor drains and main pipes can be achieved by utilizing the tolerance range of the junction box body 100 itself; in the water supply and drainage system of the traditional building, the buried electromechanical pipeline junction box in this embodiment can replace the water supply and drainage pipe well and the electrical well, and the cost is low; whether it is the built-in water supply and drainage pipes of the prefabricated building or the building water supply and drainage main pipe connection, the construction efficiency and tolerance can be improved.

[0090] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A reburied electromechanical pipeline junction box, used for the built-in water supply and drainage pipelines of prefabricated buildings and the building water supply and drainage trunk pipes, characterized in that: It includes a connection box body, an upper cover plate, a lower cover plate and a connection box reserved slot master mold; the connection box reserved slot master mold is used to preset an installation slot for the connection box body; the connection box body is adapted to the installation slot; the upper cover plate is connected to the top of the connection box body; the lower cover plate is connected to the bottom of the connection box body.

2. The reburied electromechanical pipeline junction box according to claim 1 is characterized in that: The junction box body includes a main body, a fixing part and a protruding part; the fixing part is vertically arranged on the inner surface of the main body and adjacent to the top of the main body; the protruding part is vertically arranged on the top outer surface of the main body; the fixing part is used to fix the upper cover plate.

3. The reburied electromechanical pipeline junction box according to claim 2 is characterized in that: The raised portion is provided with a first groove, a first connecting member and a second connecting member; the first connecting member and the second connecting member are respectively arranged on two opposite sides of the first groove; the first groove and the end surface where the top of the main body is located are in the same plane.

4. The reburied electromechanical pipeline junction box according to claim 3 is characterized in that: The docking box body also includes a handle; two ends of the handle are respectively connected to the first connecting member and the second connecting member; the handle is adapted to the first groove.

5. The reburied electromechanical pipeline junction box according to claim 4 is characterized in that: The junction box body includes a first bottom plate and a limiting member; the first bottom plate and the limiting member are both vertically fixed to the inner surface of the main body; the first bottom plate is located at the bottom of the main body and is in the same horizontal plane as the end surface of the bottom of the main body; the limiting member is located above the first bottom plate.

6. The reburied electromechanical pipeline junction box according to claim 5 is characterized in that: The lower cover plate includes a first lower cover plate body and a limiting hole; the limiting hole is arranged on the first lower cover plate body; the first lower cover plate body is clamped between the first bottom plate and the limiting hole; the limiting hole is adapted to the limiting member.

7. The reburied electromechanical conduit junction box according to claim 4 is characterized in that: The docking box body includes a second bottom plate; the second bottom plate is vertically fixed to the inner surface of the main body; the second bottom plate includes a horizontal portion and a vertical portion; one end of the horizontal portion is vertically fixed to the main body, and the other end is vertically fixed to the vertical portion; the horizontal portion and the bottom of the main body are in the same plane; the horizontal portion is parallel to the upper cover.

8. The reburied electromechanical pipeline junction box according to claim 7 is characterized in that: The lower cover plate includes a second lower cover plate body and a limiting portion; the limiting portion is perpendicular to the second lower cover plate body; and the limiting portion abuts against a second groove formed between the vertical portion and the horizontal portion.

9. The reburied electromechanical conduit junction box according to any one of claims 1 to 8, characterized in that: The interior of the connection box body, the upper cover plate and the lower cover plate are all filled with fireproof glue, and the fireproof time of the fireproof glue is 2-4 hours.

10. A construction method for a reburied electromechanical pipeline junction box, characterized in that: Applied to the reburied electromechanical conduit junction box according to any one of claims 1 to 9, the method comprises: When pouring concrete on the base plate, apply a release agent to the master mold of the reserved groove of the junction box and fix it in the preset area; After the concrete of the base plate has initially solidified, the master mold of the reserved groove of the junction box is taken out from the preset area to complete the preset of the installation groove; According to the position of the water supply and drainage main pipe at the bottom of the base plate and the diameter of the branch pipe at the water supply and drainage point, the first hole is opened on the lower cover plate; Connect the small branch pipes for water supply and drainage, the floor drains for water supply and drainage and the main pipes, and assemble the lower cover plate and the main body of the junction box; After aligning the first hole with the water supply and drainage branch pipe, the lower cover plate is placed on the drainage branch pipe, and the gap between the first hole and the water supply and drainage branch pipe is sealed; A second hole is opened at a corresponding position on the upper cover plate according to the hole on the lower cover plate; After aligning the second hole with the small branch pipe for water supply and drainage, the upper cover plate is sleeved on the small branch pipe for drainage, and the gap between the second hole and the small branch pipe for water supply and drainage is sealed.

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