Pipe connection assembly for concrete modular integrated building pipe floor penetration

Abstract

The utility model relates to the technical field of modular integrated building, especially a pipeline connecting assembly for concrete modular integrated building pipeline floor-penetrating, the pipeline connecting assembly includes pre -buried water stop, pre -buried sleeve, connecting pipe and socket fixed pipe fitting, since the second connecting portion of socket fixed pipe fitting stretches into the connecting space of the third connecting portion of pre -buried sleeve and is connected with the inner wall of connecting space threadedly, the field operation step is reduced to the threaded connection and prefabricated component, and the installation efficiency is further improved. At the same time, since the first connecting portion of connecting pipe and the second connecting portion of socket fixed pipe fitting are connected through sealing ring assembly. Through setting sealing ring assembly cooperation threaded connection, realize double sealing structure, further reduce the risk of water leakage, especially suitable for bathroom, kitchen and other high waterproof requirement scene.

Description

Technical Field

[0001] This utility model relates to the field of modular integrated building technology, and in particular to a pipe connection component for pipes passing through floor slabs in concrete modular integrated buildings. Background Technology

[0002] Modular concrete integrated buildings use standard modules as basic units. The main body of the module is produced, sanitary ware is installed, electromechanical pipelines are installed, and overall decoration is completed in the factory. On-site, only the modules are assembled and the pipelines between the modules are connected. It is a new type of rapid construction method with the advantages of high degree of assembly integration, fast construction efficiency, and good construction quality.

[0003] To address the low efficiency of connecting pipes between adjacent concrete modules, existing pipe connection components include a pre-embedded waterstop, a pre-embedded sleeve, a connecting pipe, and a socket-fixed fitting. The pre-embedded waterstop is pre-installed in the bottom slab of the upper module, with its upper end connecting to the drainage riser of the upper module. The pre-embedded sleeve is pre-installed in the top slab of the lower module. After the upper and lower concrete modules are joined, the pre-embedded waterstop and sleeve are connected. Then, the connecting pipe and socket-fixed fitting are installed on-site. The upper end of the connecting pipe passes through the pre-embedded sleeve and connects to the lower end of the pre-embedded waterstop. The upper end of the socket-fixed fitting connects to the connecting pipe, and the lower end connects to the drainage riser of the lower module. This combination of four components enables rapid installation of the pipe connection through the floor slab. However, in existing technology, the connection between the connecting pipe and the socket-fixed fitting is achieved through a spinning process, which is difficult to operate and results in poor sealing, increasing the risk of leakage. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a pipe connection component for pipes passing through floor slabs in modular integrated concrete buildings, which solves the technical problems of inconvenient connection between the connecting pipe and the socket fixing fitting and poor sealing effect at the connection between the two.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] This utility model embodiment provides a pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings, including a pre-embedded waterstop, a pre-embedded sleeve, a connecting pipe, and a socket fixing fitting. The pre-embedded waterstop is located on the upper concrete module among two adjacent concrete modules, and the pre-embedded sleeve is located on the lower concrete module among two adjacent concrete modules. The lower end of the connecting pipe extends radially outward to form a first connecting part, the upper end of the socket fixing fitting extends radially outward to form a second connecting part, and the lower end of the pre-embedded sleeve extends radially outward to form a third connecting part. The bottom end of the third connecting part is recessed with a connecting space. The connecting pipe is disposed inside the pre-embedded sleeve, and the upper end of the connecting pipe is connected to the lower socket of the pre-embedded waterstop. The second connecting part of the socket fixing fitting extends into the connecting space of the third connecting part of the pre-embedded sleeve and is threadedly connected to the inner wall of the connecting space. The upper opening of the socket fixing fitting is connected to the lower end of the connecting pipe. The first connecting part of the connecting pipe extends into the connecting space and is located between the third and second connecting parts. The first connecting part and the second connecting part are connected by a sealing ring assembly.

[0009] Preferably, the inner wall of the connection space of the pre-embedded sleeve is provided with internal threads; the outer edge of the second connection part of the socket fixing fitting is provided with external threads; the second connection part of the socket fixing fitting extends into the connection space of the pre-embedded sleeve and is threadedly connected with the internal threads.

[0010] Preferably, the inner wall of the connecting space is further provided with a positioning smooth section, which is located at the lower end of the internal thread; the diameter of the positioning smooth section is larger than the nominal diameter of the internal thread.

[0011] Preferably, the sealing ring assembly includes an annular groove and an annular sealing ring; the annular groove is formed at the top end of the second connection portion of the socket fixing pipe fitting; the annular sealing ring is located in the annular groove, and the top end of the annular sealing ring abuts against the bottom end of the first connection portion of the connecting pipe.

[0012] Preferably, the diameter of the longitudinal section of the annular sealing ring is greater than the height of the annular groove.

[0013] Preferably, a plurality of first reinforcing ribs are provided at intervals between the top end of the third connection of the pre-embedded sleeve and the main body of the pre-embedded sleeve.

[0014] Preferably, a plurality of second reinforcing ribs are provided at intervals between the top end of the first connecting part of the connecting pipe and the main body of the connecting pipe.

[0015] Preferably, the embedded waterstop, embedded sleeve, connecting pipe and socket fixing fitting are all made of polyvinyl chloride.

[0016] Preferably, a water-proof rubber ring is fitted onto the upper end of the pre-embedded sleeve, and the lower end of the pre-embedded water-stop joint abuts against the water-proof rubber ring.

[0017] (III) Beneficial Effects

[0018] The beneficial effects of this utility model are:

[0019] This utility model discloses a pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings. The lower end of the connecting pipe extends radially to form a first connecting part, the upper end of the socket-fixed fitting extends radially to form a second connecting part, and the lower end of the pre-embedded sleeve extends radially to form a third connecting part. A connecting space is recessed at the bottom of the third connecting part. The second connecting part of the socket-fixed fitting extends into the connecting space of the third connecting part of the pre-embedded sleeve and is threadedly connected to the inner wall of the connecting space. The threaded connection and prefabricated components reduce on-site operation steps (e.g., eliminating the need for repeated adjustments to the socket angle), further improving installation efficiency. Simultaneously, since the connecting pipe is located within the pre-embedded sleeve, the upper opening of the socket-fixed fitting aligns with the lower end of the connecting pipe. The first connecting part of the connecting pipe and the second connecting part of the socket-fixed fitting are connected by a sealing ring assembly. By using the sealing ring assembly in conjunction with the threaded connection, a double-sealing structure is achieved, further reducing the risk of leakage, making it particularly suitable for scenarios with high waterproofing requirements, such as bathrooms and kitchens. Therefore, this pipe connection assembly is easy to install, improves installation efficiency, reduces labor costs, and facilitates future maintenance and replacement. Attached Figure Description

[0020] Figure 1 This is a longitudinal sectional view of the pipe connection assembly of this utility model;

[0021] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the diagram;

[0022] Figure 3 This is a schematic diagram of the pre-embedded sleeve structure;

[0023] Figure 4 for Figure 3 A longitudinal sectional view;

[0024] Figure 5 for Figure 4 Enlarged schematic diagram of part B;

[0025] Figure 6 This is a schematic diagram of the connecting pipe structure;

[0026] Figure 7 This is a longitudinal sectional view of a socket-fixed pipe fitting.

[0027] [Explanation of Labels in the Attached Image]

[0028] 1: Pre-embedded waterstop joint; 2: Pre-embedded sleeve; 21: Third connection part; 211: Connection space; 212: Internal thread; 213: Positioning smooth section; 3: Connecting pipe; 31: First connection part; 4: Socket fixing fitting; 41: Second connection part; 411: External thread; 5: Sealing ring assembly; 51: Annular groove; 52: Annular sealing ring; 6: First reinforcing rib; 7: Second reinforcing rib; 8: Waterproof rubber ring; 9: Third reinforcing rib. Detailed Implementation

[0029] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 As shown, this utility model embodiment provides a pipe connection assembly for pipes passing through floor slabs in modular integrated concrete buildings. The pipe connection assembly includes a pre-embedded water-stop joint 1, a pre-embedded sleeve 2, a connecting pipe 3, a socket fixing fitting 4, and a water-proof rubber ring 8. The pre-embedded water-stop joint 1 is pre-embedded in the upper concrete module of two adjacent concrete modules, the pre-embedded sleeve 2 is pre-embedded in the lower concrete module of two adjacent concrete modules, the water-proof rubber ring 8 is sleeved on the upper end of the pre-embedded sleeve 2, and the lower end of the pre-embedded water-stop joint 1 abuts against the water-proof rubber ring 8.

[0031] In this embodiment, the pre-embedded waterstop 1, the pre-embedded sleeve 2, the connecting pipe 3, and the socket fixing fitting 4 are rotating structures with an internal communicating space. The upper socket of the pre-embedded waterstop 1 is inserted into the drainage riser of the upper concrete module, and the lower end of the socket fixing fitting 4 is inserted into the drainage riser of the lower concrete module.

[0032] After the upper module is hoisted, the pre-embedded water-stop joint 1 is positioned above the pre-embedded sleeve 2 and squeezes the water-proof rubber ring 8 on the pre-embedded sleeve 2. The water-proof rubber ring 8 is used to isolate the water accumulation in the cushion layer between the upper and lower modules, thereby preventing water accumulation from entering the pre-embedded sleeve 2. The connecting pipe 3 and the socket fixing fitting 4 are installed in the lower module. The connecting pipe 3 is used to connect the pre-embedded water-stop joint 1 and the socket fixing fitting 4, thereby forming a connection path for the upper and lower drainage risers. This pipe connection assembly saves the on-site sleeve sealing process, realizes the rapid installation of pipes passing through the floor slab and the combined pipe fittings, and solves the problem of water accumulation in the cushion layer entering the sleeve and causing leakage.

[0033] like Figure 1 and Figure 2As shown, the lower end of the connecting pipe 3 extends radially outward to form a first connecting part 31, the upper end of the socket fixing fitting 4 extends radially outward to form a second connecting part 41, and the lower end of the pre-embedded sleeve 2 extends radially outward to form a third connecting part 21. The bottom end of the third connecting part 21 is recessed with a connecting space 211. The connecting pipe 3 is set inside the pre-embedded sleeve 2, and the upper end of the connecting pipe 3 is connected to the lower socket of the pre-embedded waterstop 1. The second connecting part 41 of the socket fixing fitting 4 extends into the connecting space 211 of the third connecting part 21 of the pre-embedded sleeve 2 and is threadedly connected to the inner wall of the connecting space 211. The threaded connection and prefabricated components reduce on-site operation steps (such as eliminating the need to repeatedly adjust the socket angle), further improving installation efficiency.

[0034] Meanwhile, since the upper opening of the socket-fixed pipe fitting 4 connects to the lower end of the connecting pipe 3, the first connecting part 31 of the connecting pipe 3 extends into the connecting space 211 and is located between the third connecting part 21 and the second connecting part 41. The first connecting part 31 of the connecting pipe 3 and the second connecting part 41 of the socket-fixed pipe fitting 4 are connected by a sealing ring assembly 5. By setting the sealing ring assembly 5 in conjunction with the threaded connection, a double sealing structure is achieved, further reducing the risk of leakage, which is especially suitable for scenarios with high waterproofing requirements such as bathrooms and kitchens. Therefore, this pipe connection assembly is easy to install, improves installation efficiency, reduces labor costs, and extends the service life of the building.

[0035] like Figure 4 As shown, the inner wall of the connection space 211 of the pre-embedded sleeve 2 is provided with an internal thread 212, such as... Figure 7 As shown, the outer edge of the second connecting part 41 of the socket fixing pipe fitting 4 is provided with an external thread 411. The second connecting part 41 of the socket fixing pipe fitting 4 extends into the connection space 211 of the pre-embedded sleeve 2 and is threadedly connected with the internal thread 212. To ensure the connection strength, the engagement length between the external thread 411 of the socket fixing pipe fitting 4 and the internal thread 212 in the connection space 211 is at least 12mm. To avoid the second connecting part 41 being too thick and causing the socket fixing pipe fitting 4 to be too heavy, a weight-reducing space is provided at the bottom end of the second connecting part 41. At the same time, to avoid the strength of the socket fixing pipe fitting 4 decreasing after the weight-reducing space is provided, multiple third reinforcing ribs 9 are provided at intervals between the second connecting part 41 and the main body of the socket fixing pipe fitting 4.

[0036] like Figure 5 As shown, the inner wall of the connecting space 211 is also provided with a positioning smooth section 213. The positioning smooth section 213 is located at the lower end of the internal thread 212, and the diameter of the positioning smooth section 213 is larger than the nominal diameter of the internal thread 212. The positioning smooth section 213 plays a guiding role in the initial stage of installation of the socket fixed pipe fitting 4, avoiding misalignment between the external thread 411 and the internal thread 212, reducing installation resistance and thread wear, and improving installation efficiency.

[0037] like Figure 2As shown, the sealing ring assembly 5 includes an annular groove 51 and an annular sealing ring 52. The annular groove 51 is formed at the top end of the second connecting portion 41 of the socket fixing pipe fitting 4. Figure 7 As shown, the annular sealing ring 52 is located within the annular groove 51, and the top end of the annular sealing ring 52 abuts against the bottom end of the first connecting part 31 of the connecting pipe 3. The annular groove 51 provides an accurate installation position for the sealing ring, preventing it from shifting or twisting during installation. The top end of the annular sealing ring 52 abuts against the first connecting part 31 of the connecting pipe 3, and is deformed by compression during thread tightening, filling the connection gap and forming a tight, elastic sealing layer. This effectively prevents water flow through the connection between the connecting pipe 3 and the socket fixing fitting 4.

[0038] In this embodiment, the diameter of the longitudinal section of the annular sealing ring 52 is larger than the height of the annular groove 51. This ensures that the sealing ring is in an interference fit after installation, further enhancing the compression sealing effect. Even when minor building settlement or vibration causes relative displacement of components, it can still maintain good sealing performance and reduce the risk of leakage. In this embodiment, the diameter of the longitudinal section of the annular sealing ring 52 is 2-3 mm longer than the height of the annular groove 51.

[0039] To enhance the structural strength of the first connecting part 31 and the main body of the embedded sleeve 2, and to prevent deformation or breakage of the first connecting part 31 due to uneven stress. Figure 3 As shown, a plurality of first reinforcing ribs 6 are provided at intervals between the top end of the third connecting part 21 of the pre-embedded sleeve 2 and the main body of the pre-embedded sleeve 2.

[0040] like Figure 6 As shown, similarly, in order to enhance the structural strength of the third connecting part 21 and the main body of the connecting pipe 3, a plurality of second reinforcing ribs 7 are provided at intervals between the top end of the first connecting part 31 of the connecting pipe 3 and the main body of the connecting pipe 3.

[0041] In this embodiment, the embedded waterstop 1, embedded sleeve 2, connecting pipe 3, and socket fixing fitting 4 are all made of polyvinyl chloride (PVC). This material is characterized by corrosion resistance, light weight, low cost, and good processing performance. It is convenient for factory prefabrication and on-site installation, and can adapt to the usage environment of building water supply and drainage systems, thereby improving the durability and economy of pipe connection components.

[0042] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings, comprising a pre-embedded waterstop (1), a pre-embedded sleeve (2), a connecting pipe (3), and a socket fixing fitting (4), wherein the pre-embedded waterstop (1) is located on the upper concrete module of two adjacent concrete modules, and the pre-embedded sleeve (2) is located on the lower concrete module of the two adjacent concrete modules, characterized in that: The lower end of the connecting pipe (3) extends radially outward to form a first connecting part (31), the upper end of the socket fixing pipe fitting (4) extends radially outward to form a second connecting part (41), the lower end of the pre-embedded sleeve (2) extends radially outward to form a third connecting part (21), and the bottom end of the third connecting part (21) is recessed with a connecting space (211). The connecting pipe (3) is installed inside the pre-embedded sleeve (2), and the upper end of the connecting pipe (3) is connected to the lower socket of the pre-embedded waterstop (1). The second connecting part (41) of the socket fixing pipe fitting (4) extends into the connecting space (211) of the third connecting part (21) of the pre-embedded sleeve (2) and is threaded to the inner wall of the connecting space (211). The upper opening of the socket fixing pipe fitting (4) is connected to the lower end of the connecting pipe (3). The first connecting part (31) of the connecting pipe (3) extends into the connecting space (211) and is located between the third connecting part (21) and the second connecting part (41). The first connecting part (31) and the second connecting part (41) are connected by a sealing ring assembly (5).

2. The pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings as described in claim 1, characterized in that: The inner wall of the connection space (211) of the pre-embedded sleeve (2) is provided with an internal thread (212); The outer edge of the second connecting part (41) of the socket fixing pipe fitting (4) is provided with external thread (411). The second connecting part (41) of the socket fixing pipe fitting (4) extends into the connecting space (211) of the pre-embedded sleeve (2) and is threadedly connected to the internal thread (212).

3. The pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings as described in claim 2, characterized in that: The inner wall of the connecting space (211) is also provided with a positioning smooth section (213), which is located at the lower end of the internal thread (212); The diameter of the positioning smooth section (213) is greater than the nominal diameter of the internal thread (212).

4. The pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings as described in claim 1, characterized in that: The sealing ring assembly (5) includes an annular groove (51) and an annular sealing ring (52); The annular groove (51) is formed at the top of the second connecting part (41) of the socket fixing pipe fitting (4); The annular sealing ring (52) is located in the annular groove (51), and the top end of the annular sealing ring (52) abuts against the bottom end of the first connecting part (31) of the connecting pipe (3).

5. The pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings as described in claim 4, characterized in that: The diameter of the longitudinal section of the annular sealing ring (52) is greater than the height of the annular groove (51).

6. The pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings as described in claim 1, characterized in that: Multiple first reinforcing ribs (6) are provided at intervals between the top end of the third connecting part (21) of the pre-embedded sleeve (2) and the main body of the pre-embedded sleeve (2).

7. The pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings as described in claim 1, characterized in that: A plurality of second reinforcing ribs (7) are provided at intervals between the top end of the first connecting part (31) of the connecting pipe (3) and the main body of the connecting pipe (3).

8. The pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings as described in claim 1, characterized in that: The materials of the pre-embedded waterstop (1), the pre-embedded sleeve (2), the connecting pipe (3) and the socket fixing fitting (4) are all polyvinyl chloride.

9. The pipe connection assembly for pipes penetrating floor slabs in modular integrated concrete buildings as described in claim 1, characterized in that: The upper end of the pre-embedded sleeve (2) is fitted with a water-proof rubber ring (8), and the lower end of the pre-embedded water-stop joint (1) abuts against the water-proof rubber ring (8).

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