Prefabricated building water supply and drainage pipeline

Abstract

The utility model relates to water supply and drainage pipeline technical field especially, relate to a kind of fabricated building water supply and drainage pipeline, including pipeline body and pipe clamp, the pipeline body includes temperature-resistant outer layer, heat-insulating middle layer and metal inner layer, the pipeline body top detachably connected has fire plug, fire plug is in and is provided with fire foam strip, the pipe clamp includes upper hoop body and lower hoop body, the upper hoop body and lower hoop body's both sides are equipped with the fixed hole that bolt passes through conveniently, the pipeline body is connected fixed by the pipe and is smashed, the fabricated building water supply and drainage pipeline of the application is convenient to install, when fire, active protection can be carried out, prevent high-temperature damage, applicable to high-rise building.

Description

Technical Field

[0001] This utility model relates to the field of water supply and drainage pipeline technology, and in particular to a prefabricated building water supply and drainage pipeline. Background Technology

[0002] In building water supply and drainage systems, pipes are the core facilities for water supply and drainage. Their design rationality, assembly reliability, and fire resistance directly affect the building's functionality, sanitation, and safety. Common residential drainage pipes mainly use two materials: PVC-U plastic pipes and cast iron pipes. PVC-U plastic pipes are usually connected by socket joints using solvent-based adhesives, while cast iron pipes are usually connected by clamps or flanges.

[0003] However, existing water supply and drainage pipe systems in high-rise buildings rely solely on external fireproof covering materials for passive protection during fires. In high-temperature environments, PVC-U pipes are prone to softening and melting, while cast iron pipes may leak at joints due to thermal deformation, thereby compromising the integrity of the fire-fighting water supply system. Furthermore, when pipe penetrations through walls are not properly sealed, a "chimney effect" can easily occur, accelerating the vertical spread of fire. Additionally, replacing damaged pipes requires dismantling the building structure, resulting in high repair costs and low operational efficiency in high-rise buildings. Utility Model Content

[0004] To address the problems mentioned above, this utility model provides a prefabricated building water supply and drainage pipe that is easy to install and can provide active protection against fire and high-temperature damage, making it suitable for high-rise buildings.

[0005] The solution adopted by this utility model to solve its technical problem is: a prefabricated building water supply and drainage pipe, including a pipe body and a pipe clamp. The pipe body includes a heat-resistant outer layer, a heat-insulating middle layer and a metal inner layer. A fire plug is detachably connected to the top of the pipe body. A fireproof foam strip is provided inside the fire plug. The pipe clamp includes an upper clamp body and a lower clamp body. Fixing holes for easy bolt passage are opened on both sides of the upper clamp body and the lower clamp body. The pipe body is connected and fixed by the pipe clamp.

[0006] Furthermore, the fire plug has an internal cavity, the fireproof foam strip is located inside the cavity, and the cavity is sealed by a fusible alloy cap.

[0007] Furthermore, a honeycomb-shaped partition is fixedly connected inside the cavity, and the honeycomb-shaped partition is located on top of the fireproof foam strip.

[0008] Furthermore, vermiculite-based fireproof strips are embedded on the inner sides of both the upper and lower hoop bodies, and a waterproof coating is applied to the outer periphery of the vermiculite-based fireproof strips.

[0009] Furthermore, the top of the pipe body is provided with an installation groove, the fire plug is placed in the installation groove, the bottom of the installation groove is provided with a magnetic suction piece, and the bottom of the fire plug is provided with an iron piece.

[0010] In summary, the beneficial effects of this utility model are as follows:

[0011] 1. The pipe body of this application has three layers, and a fire plug is detachably installed on the top. A fireproof foam strip is installed inside the fire plug. In the event of a fire, the fireproof foam strip expands and wraps around the pipe, blocking the spread of flames and smoke.

[0012] 2. The top of the fireproof foam strip is equipped with a honeycomb baffle. The honeycomb baffle can guide the generated foam to expand evenly in the axial and radial directions of the pipe, improve the sealing density, and avoid local voids.

[0013] 3. The vermiculite-based fireproof strips inside the upper and lower hoop bodies can expand rapidly when exposed to high temperatures, filling the gaps between the hoop and the pipe, and preventing the spread of flames and high-temperature smoke through the pipe connection.

[0014] 4. The mounting groove at the top of the pipe body is equipped with a magnetic plate, and the bottom of the fire plug is equipped with an iron plate. The fire plug can be magnetically fixed in the mounting groove. The above design facilitates the installation and removal of the fire plug.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is the front view of this embodiment;

[0017] Figure 2 This is a schematic diagram of the structure of this embodiment;

[0018] Figure 3 This is a front view of the honeycomb partition in this embodiment.

[0019] In the diagram: 1. Pipe body; 11. Heat-resistant outer layer; 12. Insulation middle layer; 13. Metal inner layer; 14. Mounting groove; 141. Magnetic suction plate; 2. Fire plug; 21. Cavity; 211. Fireproof foam strip; 212. Honeycomb partition; 22. Fusible alloy cap; 23. Iron sheet; 31. Upper hoop; 32. Lower hoop; 4. Vermiculite-based fireproof strip. Detailed Implementation

[0020] To make the content of this utility model easier to understand, the present utility model will be further described below with reference to specific embodiments and accompanying drawings.

[0021] It should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer" used herein to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Unless otherwise stated, "a plurality of" means two or more.

[0022] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1 As shown, a prefabricated building water supply and drainage pipe includes a pipe body 1 and pipe clamps. The pipe body 1 includes a heat-resistant outer layer 11, a heat-insulating middle layer 12, and a metal inner layer 13. The heat-resistant outer layer 11 is made of modified PVC material, the heat-insulating middle layer 12 is made of polyurethane foam material, and the metal inner layer 13 is made of stainless steel. Figure 2 As shown, a fire plug 2 is detachably connected to the top of the pipe body 1. A fireproof foam strip 211 is installed inside the fire plug 2. The fireproof foam strip 211 is made of expanded graphite and sodium silicate composite material. When its surface temperature exceeds 100℃, it can expand to 3-5 times its original volume and wrap around the outside of the pipe, forming a dense fire barrier to block the spread of flames and smoke. The pipe clamp in this embodiment includes a separate upper clamp body 31 and a lower clamp body 32. Fixing holes for easy bolt passage are provided on both sides of the upper clamp body 31 and the lower clamp body 32.

[0024] Specifically, the fire plug 2 has a cavity 21, within which a fireproof foam strip 211 is placed. A honeycomb-shaped partition 212 is located on top of the fireproof foam strip 211. The honeycomb-shaped partition 212 is fixed to the top of the fire plug 2 by adhesive or screws. A fusible alloy cap 22 then covers the top of the honeycomb-shaped partition 212 and seals the cavity 21. Specifically, the fusible alloy cap 22 is a bismuth-based low-melting-point alloy with a melting point of 70-100℃.

[0025] like Figure 3As shown, the honeycomb partition 212 in this embodiment is made of ceramic fiber board and has a hexagonal honeycomb structure. Through the above structural design, the honeycomb partition 212 in this embodiment can guide the foam to expand uniformly, improving the sealing efficiency.

[0026] In this embodiment, both the upper hoop 31 and the lower hoop 32 are inlaid with vermiculite-based fireproof strips 4. These fireproof strips are made of expanded vermiculite and inorganic adhesive, and can expand when exposed to fire, filling the gap between the hoop and the pipe, thus preventing the spread of flames and high-temperature smoke through the pipe connection. The vermiculite-based fireproof strip 4 is coated with a waterproof coating on its outer periphery.

[0027] In another embodiment, the fixing hole side of the upper hoop 31 is provided with a positioning groove, and the fixing hole side of the lower hoop 32 is provided with a protrusion. The positioning groove and the protrusion are adapted to each other so as to facilitate the construction personnel to install and fix the upper hoop 31 and the lower hoop 32.

[0028] like Figure 2 As shown, the top of the pipe body 1 is provided with an installation groove 14, and the fire plug 2 is placed in the installation groove 14. A magnetic suction piece 141 is provided at the bottom of the installation groove 14. The magnetic suction piece 141 is specifically a neodymium iron boron magnetic suction piece 141, and an iron piece 23 is provided at the bottom of the fire plug 2. Through the above design, the fire plug 2 can be quickly installed and replaced by magnetic attraction.

[0029] The embodiments described above are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and modifications made by those skilled in the art based on this utility model shall fall within the scope of protection of this utility model.

Claims

1. A prefabricated building water supply and sewerage pipeline comprising a pipeline body (1) and a pipe clamp, characterized in that: The pipe body (1) includes a heat-resistant outer layer (11), a heat-insulating middle layer (12) and a metal inner layer (13). A fire plug (2) is detachably connected to the top of the pipe body (1). A fireproof foam strip (211) is provided inside the fire plug (2). The pipe clamp includes an upper clamp body (31) and a lower clamp body (32). Fixing holes for easy bolt passage are provided on both sides of the upper clamp body (31) and the lower clamp body (32). The pipe body (1) is connected and fixed by the pipe clamp.

2. The prefabricated building water supply and drainage pipe according to claim 1, characterized in that, The fire plug (2) has a cavity (21) inside, and the fireproof foam strip (211) is located inside the cavity (21). The cavity (21) is sealed by a fusible alloy cap (22).

3. A prefabricated building water supply and drainage pipe according to claim 2, characterized in that, A honeycomb partition (212) is fixedly connected inside the cavity (21), and the honeycomb partition (212) is located on top of the fireproof foam strip (211).

4. A prefabricated building water supply and drainage pipe according to claim 1, characterized in that, The inner sides of the upper hoop (31) and the lower hoop (32) are both inlaid with vermiculite-based fireproof strips (4), and the outer periphery of the vermiculite-based fireproof strips (4) is coated with a waterproof coating.

5. A prefabricated building water supply and drainage pipe according to claim 1, characterized in that, The top of the pipe body (1) is provided with an installation groove (14), the fire plug (2) is set in the installation groove (14), the bottom of the installation groove (14) is provided with a magnetic suction piece (141), and the bottom of the fire plug (2) is provided with an iron piece (23).

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