Prefabricated autoclaved aerated concrete pipeline integrated panel

Abstract

The application discloses an assembled autoclaved aerated concrete pipeline integrated plate, and relates to the technical field of building assembly, which comprises a base plate, an internal cavity, a wire box containing groove and a wiring pipe. The base plate comprises a first plate surface, a second plate surface and a containing shell, the first plate surface, the second plate surface and the containing shell enclose to form the internal cavity, and the internal cavity penetrates through the first plate surface and the second plate surface. The wire box containing groove is arranged on the containing shell, the groove opening of the wire box containing groove penetrates through the containing shell, and the groove bottom of the wire box containing groove is communicated with the internal cavity, so that the wiring pipe can be arranged from the internal cavity to the wire box containing groove. The technical scheme of the application can effectively compensate for the positioning deviation between industrial production and the construction site, ensure the accurate installation and function realization of the pipeline integrated plate, and simplify the manufacturing process, improve the production efficiency, reduce the installation difficulty, be favorable for large-scale industrial production, and be widely applicable to different building scenes.

Description

Technical Field

[0001] This application relates to the field of building assembly technology, and in particular to a prefabricated autoclaved aerated concrete pipeline integrated panel. Background Technology

[0002] Autoclaved aerated concrete (AAC) wall panels have been widely used in residential, public, and energy-efficient buildings in recent years due to their advantages such as lightweight, high strength, heat insulation, fire resistance, and durability. However, with increasingly complex building designs and more diverse internal pipeline layouts, the limitations of traditional AAC wall panels in pipeline integration and installation are becoming increasingly apparent. Existing AAC wall panels typically employ on-site trenching, pipe burial, or external pipeline installation for electrical, plumbing, and other pipelines. This method not only has a long construction period and high labor intensity but is also prone to construction errors, leading to a decrease in the overall installation accuracy of the wall panels and affecting pipeline safety and building functionality.

[0003] Furthermore, the manufacturing process of traditional pipeline wall panels is relatively complex, especially when it comes to junction box installation, conduit layout, and handling of pipeline junctions, which require extremely high processing precision. Due to the lack of effective error-tolerant design and flexible adjustment mechanisms, even minor dimensional deviations can lead to uneven pipeline installation or inaccurate junction box placement, sometimes even requiring rework, thus increasing construction costs and timelines. At the same time, traditional wall panels have significant limitations in industrialized production and mass production. Because each wall panel needs to be adjusted for the specific construction site, the degree of production standardization is low, making it difficult to achieve large-scale industrialized production and modular assembly. Utility Model Content

[0004] The purpose of this application is to provide a prefabricated autoclaved aerated concrete (AAC) pipeline integrated panel, which aims to solve the technical problem of the difficulty in pipeline installation and positioning of AAC wall panels in the prior art.

[0005] To achieve the above objectives, this application proposes a prefabricated autoclaved aerated concrete (AAC) pipeline integrated panel, which includes: The base plate includes a first plate surface, a second plate surface, and a receiving shell. The first plate surface, the second plate surface, and the receiving shell enclose the internal cavity, and the internal cavity penetrates the first plate surface and the second plate surface. The junction box receiving slot and the wiring conduit are provided. The junction box receiving slot is formed in the receiving shell. The opening of the junction box receiving slot penetrates the receiving shell. The bottom of the junction box receiving slot communicates with the internal cavity so that the wiring conduit can pass through the internal cavity to the junction box receiving slot.

[0006] In one embodiment, the junction box receiving groove includes a junction box recess and a receiving hole. The junction box recess is formed in the receiving shell, and the receiving hole is formed at the bottom of the junction box recess. The receiving hole penetrates the bottom of the junction box recess and communicates with the internal cavity.

[0007] In one embodiment, the receiving hole is an oblong hole.

[0008] In one embodiment, the prefabricated autoclaved aerated concrete pipeline integrated panel further includes a junction box, which is disposed in the junction box groove. The junction box has a through hole corresponding to the receiving hole, and the through hole communicates with the receiving hole.

[0009] In one embodiment, the conduit includes a pipe body and a connector that are interconnected. The pipe body is fixedly connected to the inner wall of the internal cavity, and the connector passes through the receiving hole and the through hole in sequence. The connector is fixedly connected to the junction box.

[0010] In one embodiment, the connector is a right-angle elbow, one end of which is connected to the pipe body, and the other end of which passes through the receiving hole and the through hole in sequence and is fixedly connected to the junction box.

[0011] In one embodiment, the receiving shell includes a first shell and a second shell, and the wire box receiving groove includes a first wire groove and a second wire groove. The first wire groove and the second wire groove are respectively formed in the first shell and the second shell. The openings of the first wire groove and the second wire groove pass through the first shell and the second shell, respectively. The bottoms of the first wire groove and the second wire groove are respectively connected to the internal cavity.

[0012] In one embodiment, the conduit includes a first line and a second line, which are respectively able to pass through the internal cavity to the first wire groove and the second wire groove.

[0013] In one embodiment, the prefabricated autoclaved aerated concrete pipeline integrated panel further includes an installation groove, which is formed in the receiving shell, the groove opening of the installation groove penetrates the receiving shell, and the bottom of the installation groove communicates with the internal cavity.

[0014] In one embodiment, the prefabricated autoclaved aerated concrete pipeline integrated panel further includes a flexible hose, which is connected to the end of the wiring conduit away from the junction box receiving groove.

[0015] The above-mentioned technical solution of this application has at least the following beneficial technical effects: The technical solution of this application adopts a method of opening a junction box receiving groove in the receiving shell, with the groove opening penetrating through the receiving shell and the bottom of the groove communicating with the internal cavity, so that the wiring pipe can pass through the internal cavity to the junction box receiving groove. This can effectively compensate for the positioning deviation between industrial production and construction site, ensuring the accurate installation and functional realization of the integrated pipeline panel. In addition, this solution simplifies the manufacturing process, improves production efficiency, reduces installation difficulty, is conducive to large-scale industrial production, and can be widely applied to different building scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the prefabricated autoclaved aerated concrete pipeline integrated panel provided in this application without the junction box installed. Figure 2 This is a structural schematic diagram of an embodiment of the prefabricated autoclaved aerated concrete pipeline integrated panel provided in this application when the junction box is not installed; Figure 3 This is a schematic diagram of another embodiment of the prefabricated autoclaved aerated concrete pipeline integrated panel provided in this application when the junction box is not installed; Figure 4 This is a schematic diagram of the overall structure of the prefabricated autoclaved aerated concrete pipeline integrated panel provided in this application when installing the junction box; Figure 5 This is a schematic flowchart of an embodiment of the processing method for prefabricated autoclaved aerated concrete pipeline integrated panels provided in this application.

[0017] Figure label: 1. Base plate; 11. First plate surface; 12. Second plate surface; 13. Receiving shell; 131. First shell; 132. Second shell; 2. Internal cavity; 3. Junction box receiving groove; 31. Junction box recess; 32. Receiving hole; 33. First wire groove; 34. Second wire groove; 4. Wiring pipe; 41. Pipe body; 42. Connector; 5. Junction box; 6. Installation recess. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this application. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of this application.

[0019] The embodiments described in this application are only some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments described herein without inventive effort are within the scope of protection of this application. In the description of this application, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Autoclaved aerated concrete (AAC) wall panels have been widely used in residential, public, and energy-efficient buildings in recent years due to their advantages such as lightweight, high strength, heat insulation, fire resistance, and durability. However, with increasingly complex building designs and more diverse internal pipeline layouts, the limitations of traditional AAC wall panels in pipeline integration and installation are becoming increasingly apparent. Existing AAC wall panels typically employ on-site trenching, pipe burial, or external pipeline installation for electrical, plumbing, and other pipelines. This method not only has a long construction period and high labor intensity but is also prone to construction errors, leading to a decrease in the overall installation accuracy of the wall panels and affecting pipeline safety and building functionality.

[0021] Furthermore, the manufacturing process of traditional pipeline wall panels is relatively complex, especially when it comes to junction box installation, conduit layout, and handling of pipeline junctions, which require extremely high processing precision. Due to the lack of effective error-tolerant design and flexible adjustment mechanisms, even minor dimensional deviations can lead to uneven pipeline installation or inaccurate junction box placement, sometimes even requiring rework, thus increasing construction costs and timelines. At the same time, traditional wall panels have significant limitations in industrialized production and mass production. Because each wall panel needs to be adjusted for the specific construction site, the degree of production standardization is low, making it difficult to achieve large-scale industrialized production and modular assembly.

[0022] To address the aforementioned technical problems, this application proposes a prefabricated autoclaved aerated concrete (AAC) pipeline integrated panel. Please refer to [link / reference needed]. Figures 1 to 4 In one embodiment of this application, the prefabricated autoclaved aerated concrete (AAC) pipeline integrated panel includes a base plate 1, an internal cavity 2, a junction box receiving groove 3, and a wiring conduit 4. The base plate 1 includes a first plate surface 11, a second plate surface 12, and a receiving shell 13. The first plate surface 11, the second plate surface 12, and the receiving shell 13 enclose the internal cavity 2, which extends through the first plate surface 11 and the second plate surface 12. The junction box receiving groove 3 is formed in the receiving shell 13, with its opening extending through the receiving shell 13 and its bottom communicating with the internal cavity 2, so that the wiring conduit 4 can pass through the internal cavity 2 to the junction box receiving groove 3.

[0023] The technical solution of this application adopts a junction box receiving groove 3 opened in the receiving shell 13, the groove opening of the junction box receiving groove 3 penetrates the receiving shell 13, and the bottom of the junction box receiving groove 3 is connected to the internal cavity 2, so that the wiring pipe 4 can pass through the internal cavity 2 to the junction box receiving groove 3. This can effectively compensate for the positioning deviation between industrial production and construction site, and ensure the accurate installation and functional realization of the pipeline integrated plate. In addition, this solution simplifies the manufacturing process, improves production efficiency, reduces installation difficulty, is conducive to large-scale industrial production, and can be widely applied to different building scenarios.

[0024] Please see Figure 1 and Figure 2 In one embodiment, the junction box receiving groove 3 includes a junction box recess 31 and a receiving hole 32. The junction box recess 31 is formed in the receiving shell 13, and the receiving hole 32 is formed in the bottom of the junction box recess 31, penetrating the bottom of the junction box recess 31 and communicating with the internal cavity 2. This embodiment, by optimizing the design of the junction box receiving groove 3, can achieve a tight connection between the junction box and the wall panel, increase the horizontal adjustment margin, improve installation accuracy, reduce construction errors, and facilitate the speed and accuracy of pipeline installation.

[0025] Please see Figure 1 and Figure 2 In one embodiment, the receiving hole 32 is an oblong hole. This embodiment, by adopting the design of the oblong receiving hole 32, can effectively adapt to different size requirements and installation directions of the wiring conduit 4, providing greater adjustment space and improving the flexibility and adaptability of the wiring conduit 4 installation.

[0026] Please see Figure 2 and Figure 4 In one embodiment, the prefabricated autoclaved aerated concrete (AAC) pipeline integrated panel further includes a junction box 5, which is disposed within a junction box recess 31. The junction box 5 has a through hole corresponding to the receiving hole 32, and the through hole communicates with the receiving hole 32. This embodiment, by providing a through hole on the junction box 5 corresponding to the receiving hole 32, enables precise docking between the junction box 5 and the wall panel receiving groove, ensuring stable pipeline arrangement and improving the safety and convenience of pipeline installation. The number of junction boxes 5 can be one, two, or three, without limitation. Correspondingly, the junction boxes 5 are matched with wiring conduits 4, and the number of wiring conduits 4 can be one, two, or three, without limitation. The number of junction box receiving grooves 3 can be one, two, or three, without limitation.

[0027] Please see Figure 2 and Figure 4In one embodiment, the conduit 4 includes a pipe body 41 and a connector 42 that are interconnected. The pipe body 41 is fixedly connected to the inner wall of the internal cavity 2, and the connector 42 passes through the receiving hole 32 and the through hole in sequence. The connector 42 is fixedly connected to the junction box 5. This embodiment, by adopting a design in which the pipe body 41 is fixedly connected to the inner wall and the connector 42 passes through the receiving hole 32 and the through hole and is fixedly connected to the junction box 5, can ensure a stable connection between the conduit 4 and the junction box 5, and improve the reliability of the pipeline layout and the robustness of the overall structure.

[0028] Please see Figure 2 and Figure 4 In one embodiment, the connector 42 is a right-angle elbow. One end of the right-angle elbow is connected to the pipe body 41, and the other end of the right-angle elbow passes through the receiving hole 32 and the through hole in sequence and is fixedly connected to the junction box 5. This embodiment, by adopting a right-angle elbow design, can effectively change the direction of the pipeline, reduce the space occupation in the pipeline layout, and help improve the flexibility of installation and space utilization.

[0029] Please see Figures 1 to 3 In one embodiment, the housing 13 includes a first housing 131 and a second housing 132, and the junction box receiving groove 3 includes a first wire groove 33 and a second wire groove 34. The first wire groove 33 and the second wire groove 34 are respectively formed in the first housing 131 and the second housing 132, and the openings of the first wire groove 33 and the second wire groove 34 respectively penetrate through the first housing 131 and the second housing 132. The bottoms of the first wire groove 33 and the second wire groove 34 are respectively connected to the internal cavity 2. This embodiment, by designing the first housing 131 and the second housing 132 and respectively setting the first wire groove 33 and the second wire groove 34, ensures that each wire groove is connected to the internal cavity 2, which can achieve effective isolation and independent transmission of the lines. This not only improves the systematicness of the line layout, but also enhances the safety and ease of maintenance of the electrical equipment.

[0030] Please see Figure 2 and Figure 4 In one embodiment, the wiring conduit 4 includes a first line and a second line, which can pass through the internal cavity 2 to the first wire groove 33 and the second wire groove 34, respectively. This embodiment, by setting the first line and the second line to pass through the internal cavity 2 to the first wire groove 33 and the second wire groove 34, enables independent arrangement and management of different lines, ensuring orderly circuit distribution and contributing to improved system reliability and ease of maintenance.

[0031] Please see Figure 2 and Figure 4In one embodiment, the prefabricated autoclaved aerated concrete (AAC) pipeline integrated panel further includes an installation groove 6. The installation groove 6 is formed in the receiving shell 13, with its opening penetrating the receiving shell 13 and its bottom communicating with the internal cavity 2, facilitating the insertion of the wiring conduit 4 into the internal cavity 2. Specifically, the installation groove 6 can be formed on one side of the receiving shell 13 or on both sides of the receiving shell 13; no limitation is made here. This embodiment, by forming the installation groove 6 on the receiving shell 13, ensures that the wiring conduit 4 can easily pass through the groove into the internal cavity 2, simplifying the installation process and improving the installation flexibility and convenience of the wiring conduit 4. In addition, the communication between the bottom of the groove and the internal cavity 2 helps to maintain the unobstructed flow of the wiring.

[0032] Please see Figure 2 and Figure 4 In one embodiment, the prefabricated autoclaved aerated concrete (AAC) pipeline integration panel further includes a flexible hose connected to the end of the wiring conduit 4 furthest from the junction box receiving groove 3, used to adjust the direction of the connection between the wiring conduit 4 and the conduit pre-embedded in the main structure. This embodiment, by adding a flexible hose to the prefabricated AAC pipeline integration panel and connecting it to the end of the wiring conduit 4 furthest from the junction box receiving groove 3, effectively adjusts the connection direction between the wiring conduit 4 and the conduit pre-embedded in the main structure. The flexibility and adjustability of the flexible hose make the installation process more convenient, especially in complex installation environments. The routing can be adjusted according to actual needs, ensuring smooth connection and system stability, thereby enhancing construction adaptability and reducing installation difficulties caused by mismatched directions.

[0033] Furthermore, the prefabricated autoclaved aerated concrete pipeline integrated panel provided in this application can be processed using various methods. In one embodiment, please refer to... Figure 5 The prefabricated autoclaved aerated concrete (AAC) pipeline integrated panels are processed using the following method, which specifically includes the following steps: S1. Fabricate autoclaved aerated concrete wall panels.

[0034] This step includes the following specific steps: S11. Fix the built-in hot melt plate to the steel mesh cage.

[0035] In the production process of autoclaved aerated concrete wall panels, a 30mm to 100mm thick internal hot-melt plate is fixed between the mesh panels of the wall panel's steel reinforcement cage to form an internal cavity after hot melting.

[0036] S12. Fix the cube block to the wall panel.

[0037] A cube-shaped base, composed of an inorganic board and a hot-melt board, is horizontally attached and fixed 300mm to 1500mm from the end of the wall panel. The cube's length and width dimensions match the length and width of the junction box recess, and it is used to form the junction box recess after hot-melt bonding. The top surface of the cube is flush with or slightly lower than the surface of the wall panel.

[0038] S13. Fix the square hot melt plate onto the built-in hot melt plate.

[0039] A square hot-melt plate is fixed on the built-in hot-melt plate between the mesh panels near the end of the plate. The hot-melt plate is less than 500mm wide, 50mm to 200mm high, and its thickness must not exceed the upper or lower surface of the wall panel. It is used to form an installation groove after hot-melting.

[0040] S14. Place the steel mesh cage into the slurry and cure it until it reaches cutting strength.

[0041] The steel mesh cage is placed in the slurry used for producing autoclaved aerated concrete (AAC). The slurry generates gas, submerging the steel mesh cage to the gas generation height. After static curing, it reaches its cutting strength.

[0042] S15. After demolding the mold frame, the wall panel blank is obtained.

[0043] After the mold frame is flipped 90 degrees to demold, the blank is cut on six sides to obtain a wall panel blank of standard size.

[0044] S16. Push the embryo into the autoclave for steam pressurization treatment.

[0045] The embryo is pushed into the autoclave, and steam is slowly injected until the pressure reaches more than 10 kg and the temperature inside the autoclave reaches more than 180 degrees Celsius. It is then cured for more than 10 hours.

[0046] S17. Remove the wall panel from the autoclave and break it apart for later use.

[0047] Remove the wall panels from the autoclave and cut or separate them according to design requirements to prepare for subsequent transportation, installation, and use. This process ensures the wall panels meet dimensional requirements and are not damaged during transport or storage.

[0048] S2. Clean and shape to obtain the integrated pipeline wall panel blank.

[0049] The internal cavity of the wall panel, the groove of the junction box, and the groove of the inlet end are cleaned and shaped to obtain the integrated pipeline wall panel blank.

[0050] S3. Prepare junction boxes, conduits, hoses, and thin-threaded nuts.

[0051] According to the design requirements, prepare the corresponding junction box, conduit, flexible hose, and thin-walled nut with internal thread. One end of the conduit is threaded with external thread and bent at a 90-degree angle to form a connector. The bend is rounded to facilitate wire threading. The thin-walled nut with internal thread is used to mate with the external thread, making it easy to securely connect the connector of the conduit to the junction box.

[0052] S4. Install the junction box and wiring conduit.

[0053] Insert one end of the conduit connector into the cavity inside the wall panel. Rotate the conduit body so that the connector passes through the receiving hole of the junction box groove and is temporarily placed in the receiving hole. Protect the connector, fill the junction box groove to the preset installation height with fixing mortar, and place the junction box into the groove. Then, pass the conduit connector through the through hole into the junction box, and screw a thin-threaded nut into the end of the connector that protrudes from the junction box to fix the connector to the junction box and restrict its position. Finally, fill the space between the outer wall of the junction box and the groove wall with mortar, so that the junction box protrudes from the wall panel by 5mm to 20mm.

[0054] S5. Connect the wiring conduit to the pre-embedded wiring conduit in the main structure.

[0055] This step includes the following specific steps: S51. Adjust the direction of the other end of the wiring conduit and fix it with a bracket installed on the bottom plate or side wall of the mounting groove. The distance between the end of the wiring conduit and the top of the plate (top exit) or the bottom of the beam / plate (bottom exit) should be 50mm to 150mm. One end of the wall panel should retain the wall panel on the side of the wiring conduit, with an opening height of 50mm to 150mm.

[0056] S52. A flexible plastic or iron hose is installed between the end of the wiring conduit and the pre-embedded conduit in the main structure to increase the installation and adjustment range.

[0057] This application aims to protect a prefabricated autoclaved aerated concrete (AAC) pipeline integrated panel. The technical solution of this application adopts a method of opening a junction box receiving groove 3 in the receiving shell 13, with the groove opening penetrating the receiving shell 13 and the bottom of the junction box receiving groove 3 communicating with the internal cavity 2, so that the wiring pipe 4 can pass through the internal cavity 2 to the junction box receiving groove 3. This can effectively compensate for the positioning deviation between industrial production and construction site, ensuring the accurate installation and functional realization of the pipeline integrated panel. In addition, this solution simplifies the manufacturing process, improves production efficiency, reduces installation difficulty, is conducive to large-scale industrial production, and can be widely applied to different building scenarios.

[0058] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this application and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this application should be included within the protection scope of this application. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An assembled autoclaved aerated concrete pipeline integrated panel, characterized by, include: The base plate includes a first plate surface, a second plate surface, and a receiving shell. The first plate surface, the second plate surface, and the receiving shell enclose the internal cavity, and the internal cavity penetrates the first plate surface and the second plate surface. The junction box receiving slot and the wiring conduit are provided. The junction box receiving slot is formed in the receiving shell. The opening of the junction box receiving slot penetrates the receiving shell. The bottom of the junction box receiving slot communicates with the internal cavity so that the wiring conduit can pass through the internal cavity to the junction box receiving slot.

2. The panelized autoclaved aerated concrete plumbing integrated panel of claim 1, wherein, The junction box receiving groove includes a junction box recess and a receiving hole. The junction box recess is formed in the receiving shell, and the receiving hole is formed at the bottom of the junction box recess. The receiving hole penetrates the bottom of the junction box recess and communicates with the internal cavity.

3. The panelized autoclaved aerated concrete plumbing integrated panel of claim 2, wherein, The receiving hole is an oblong hole.

4. The panelized autoclaved aerated concrete plumbing integrated panel of claim 2, wherein, The prefabricated autoclaved aerated concrete pipeline integrated panel also includes a junction box, which is disposed in the junction box groove. The junction box has a through hole corresponding to the receiving hole, and the through hole communicates with the receiving hole.

5. The panelized autoclaved aerated concrete plumbing integrated panel of claim 4, wherein, The conduit includes a pipe body and a connector that are interconnected. The pipe body is fixedly connected to the inner wall of the internal cavity. The connector passes through the receiving hole and the through hole in sequence. The connector is fixedly connected to the junction box.

6. The panelized autoclaved aerated concrete plumbing integrated panel of claim 5, wherein, The connector is a right-angle elbow. One end of the right-angle elbow is connected to the pipe body, and the other end of the right-angle elbow passes through the receiving hole and the through hole in sequence and is fixedly connected to the junction box.

7. The panelized autoclaved aerated concrete plumbing integrated panel of claim 1, wherein, The housing includes a first housing and a second housing, and the wire box receiving groove includes a first wire groove and a second wire groove. The first wire groove and the second wire groove are respectively formed in the first housing and the second housing. The openings of the first wire groove and the second wire groove pass through the first housing and the second housing, respectively. The bottoms of the first wire groove and the second wire groove are respectively connected to the internal cavity.

8. The panelized autoclaved aerated concrete plumbing integrated panel of claim 7, wherein, The wiring conduit includes a first line and a second line, which can pass through the internal cavity to the first wire groove and the second wire groove, respectively.

9. The panelized autoclaved aerated concrete plumbing integrated panel of claim 1, wherein, The prefabricated autoclaved aerated concrete pipeline integrated panel also includes an installation groove, which is formed in the receiving shell, the groove opening of the installation groove penetrates the receiving shell, and the bottom of the installation groove communicates with the internal cavity.

10. The panelized autoclaved aerated concrete plumbing integrated panel of any one of claims 1 to 9, wherein, The prefabricated autoclaved aerated concrete pipeline integrated panel also includes a flexible hose, which is connected to the end of the wiring pipe away from the junction box receiving groove.

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