PVC (polyvinyl chloride) mute drainage pipeline

Abstract

The utility model belongs to the technical field of drain pipes. The PVC drainage pipeline solves the problem that in the prior art, noise generated in the drainage process of a PVC drainage pipeline is large. The PVC mute drainage pipeline comprises a plurality of pipe bodies which are arranged up and down, every two adjacent pipe bodies are connected through a pipe fitting, a ventilation pipeline penetrating through the pipe bodies in the axial direction is arranged in the pipe walls of the pipe bodies, and a gas conveying pipeline penetrating through the pipe fittings in the axial direction is arranged in the pipe walls of the pipe fittings. The gas conveying pipeline is communicated with the ventilation pipelines on the two adjacent pipe bodies, gas conveying holes communicated with the interior of the pipe fitting are formed in the inner wall of the gas conveying pipeline, the uppermost pipe body is sleeved with a pipe cap, and an exhaust pipeline arranged in the axial direction of the pipe cap is arranged in the pipe wall of the pipe cap. The upper end of the exhaust pipeline is closed, the lower end of the exhaust pipeline is communicated with the ventilation pipeline of the pipe body, and an exhaust hole communicated with the outside of the pipe cap is formed in the outer wall of the exhaust pipeline. The PVC drainage pipeline has the advantage that noise generated in the drainage process of the PVC drainage pipeline can be better reduced.

Description

Technical Field

[0001] This utility model belongs to the field of drainage pipe technology and relates to a PVC silent drainage pipe. Background Technology

[0002] Currently, PVC drainage pipes are widely used in bathrooms and kitchens of high-rise and super high-rise residential buildings due to their lightweight, corrosion resistance, and high pressure resistance. Existing PVC drainage pipes are generally single-layer structures. During drainage, the airflow inside the PVC drainage pipe is easily obstructed, generating noise. Furthermore, due to the large number of residents in high-rise and super high-rise residential buildings, and the high frequency of use of kitchens and bathrooms, and the varying times different residents use these spaces, noise is generated from the PVC drainage pipes from time to time. This noise, especially at night, can seriously affect people's rest and the peace of their homes when water is drained from high-rise buildings.

[0003] The commonly used solution is to wrap sound insulation cotton around the PVC drain pipes located indoors, and then fix the sound insulation cotton with tape, ropes, etc. Although this method reduces the noise heard by residents outside to a certain extent, it is only a temporary solution. Moreover, after long-term use, the tape is easy to lose its stickiness, causing the sound insulation cotton to fall off, resulting in poor sound insulation effect. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a silent PVC drainage pipe. The technical problem this invention aims to solve is how to better reduce the noise generated by PVC drainage pipes during the drainage process.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A PVC silent drainage pipe includes several pipe bodies arranged vertically, with adjacent pipe bodies connected by fittings. The pipe body has an axially extending vent pipe within its wall, and the fitting has an axially extending air supply pipe within its wall. The air supply pipes are connected to vent pipes on two adjacent pipe bodies. The inner wall of the air supply pipe has an air supply hole communicating with the inside of the fitting. A cap is fitted onto the uppermost pipe body. The cap has an axially extending exhaust pipe within its wall. The upper end of the exhaust pipe is closed, and its lower end is connected to the vent pipe of the pipe body. The outer wall of the exhaust pipe has an exhaust hole communicating with the outside of the cap.

[0007] In use, the interior of this PVC silent drainage pipe can be used for drainage. Simultaneously, the air supply pipe of the fittings is connected to the interior of the pipe through an air supply hole. This air supply pipe, along with the vent pipe of the pipe body and the exhaust pipe of the pipe cap, forms an exhaust channel for the gas inside the pipe. This allows the gas flowing from inside the pipe into the exhaust channel to be discharged to the outside through the exhaust hole on the exhaust pipe (the upper end of the exhaust pipe is closed to prevent rainwater from directly entering the exhaust channel; the airflow within the exhaust channel has a fixed direction and is discharged along a predetermined path; furthermore, the exhaust channel is concealed within the inner wall of the pipe body, fittings, and pipe cap, preventing the drainage channel from directly connecting to the outside, resulting in a more rational structure). Therefore, this PVC silent drainage pipe combines drainage and venting functions, preventing noise generated inside the pipe due to airflow obstruction, and thus better reducing noise generated during drainage.

[0008] In the aforementioned PVC silent drainage pipe, two adjacent pipe bodies are respectively inserted and fixed to the upper and lower ends of the gas transmission pipe of the fitting, and the upper end of the uppermost pipe body is inserted and fixed to the lower end of the exhaust pipe of the cap. This makes the connection of the cap, pipe body, and fitting more convenient, and also improves the structural strength of the PVC silent drainage pipe obtained after the cap, pipe body, and fitting are connected.

[0009] In the aforementioned PVC silent drainage pipe, the gas transmission pipe has several first baffles arranged circumferentially within the pipe fitting. The two sides of each first baffle are connected to the inner wall of the gas transmission pipe. The length of each first baffle is aligned with the length of the pipe fitting. The lower end of each first baffle is higher than the lower end of the pipe fitting, and the upper end of each first baffle is lower than the upper end of the pipe fitting. Adjacent pipe bodies abut against the upper and lower ends of each first baffle. The first baffles enhance the structural strength of the pipe fitting itself and provide support and restraint for adjacent pipe bodies, thereby strengthening the structural strength of the PVC silent drainage pipe and facilitating the insertion and fixation of the pipe bodies onto the pipe fitting.

[0010] In the aforementioned PVC silent drainage pipe, the exhaust pipe has several second baffles arranged circumferentially along the pipe cap. The two sides of each second baffle are connected to the inner wall of the exhaust pipe. The length of the second baffle is aligned with the length of the pipe cap. The lower end of the second baffle is higher than the lower end of the pipe cap, and the upper end of the uppermost pipe body abuts against the lower end of the second baffle. The second baffles enhance the structural strength of the pipe cap and provide support and restraint for the pipe body, thereby strengthening the structural strength of the PVC silent drainage pipe and facilitating the insertion and fixation of the pipe body onto the pipe cap.

[0011] In the aforementioned PVC silent drainage pipe, the air inlet is inclined from bottom to top, arranged from the inside out. This prevents water inside the pipe from flowing into the air supply pipe through the air inlet, ensuring that the venting and drainage functions of this PVC silent drainage pipe do not interfere with each other.

[0012] In the aforementioned PVC silent drainage pipe, multiple air inlets and outlets are provided. By providing multiple air inlets and outlets, the venting function of this PVC silent drainage pipe can be enhanced, thereby better reducing the noise generated by the PVC drainage pipe during drainage.

[0013] Compared with existing technologies, the advantages of this PVC silent drainage pipe are as follows: The interior of this PVC silent drainage pipe can be used for drainage. At the same time, the air supply pipe of the pipe fitting is connected to the inside of the pipe through the opening of the air supply hole. Furthermore, the air supply pipe is connected to the air vent pipe of the pipe body and the exhaust pipe of the pipe cap to form an exhaust channel for the gas inside the pipe. This allows the gas flowing from the inside of the pipe to the exhaust channel to be finally discharged to the outside through the exhaust hole on the exhaust pipe. Thus, this PVC silent drainage pipe has both drainage and exhaust functions, which can avoid noise generated inside the pipe due to airflow obstruction, and thus better reduce the noise generated by the PVC drainage pipe during the drainage process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the PVC silent drainage pipe.

[0015] Figure 2 This is a cross-sectional view of this PVC silent drainage pipe.

[0016] Figure 3 This is a three-dimensional structural diagram of the PVC silent drainage pipe fittings.

[0017] Figure 4 This is a three-dimensional structural diagram of the PVC silent drainage pipe cap.

[0018] In the figure, 1 is the pipe body; 1a is the ventilation pipe; 2 is the pipe fitting; 2a is the gas supply pipe; 2a1 is the gas supply port; 2b is the first partition section; 3 is the pipe cap; 3a is the exhaust pipe; 3a1 is the exhaust port; and 3b is the second partition section. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] A type of PVC silent drainage pipe, as described in the reference Figure 1-4The system includes several vertically arranged pipe bodies 1, with adjacent pipe bodies 1 connected by pipe fittings 2. Each pipe body 1 has a ventilation pipe 1a extending axially along its inner wall, and each pipe fitting 2 has a gas supply pipe 2a extending axially along its inner wall. The gas supply pipe 2a is connected to the ventilation pipes 1a on two adjacent pipe bodies 1. The inner wall of the gas supply pipe 2a has a gas supply hole 2a1 that communicates with the inside of the pipe fitting 2. A pipe cap 3 is fitted onto the uppermost pipe body 1. The inner wall of the pipe cap 3 has an exhaust pipe 3a extending axially along its inner wall. The upper end of the exhaust pipe 3a is closed, and its lower end is connected to the ventilation pipe 1a of the pipe body 1. The outer wall of the exhaust pipe 3a has an exhaust hole 3a1 that communicates with the outside of the pipe cap 3.

[0021] Specifically, refer to Figure 1-4 The two adjacent pipe bodies 1 are respectively inserted and fixed at the upper and lower ends of the gas transmission pipe 2a of the fitting 2, and the upper end of the uppermost pipe body 1 is inserted and fixed on the lower end of the exhaust pipe 3a of the pipe cap 3.

[0022] More specifically, refer to Figure 1-4 The gas transmission pipe 2a has several first baffle portions 2b arranged circumferentially along the pipe fitting 2. The two sides of the first baffle portions 2b are respectively connected to the inner wall of the gas transmission pipe 2a. The length direction of the first baffle portions 2b is consistent with the length direction of the pipe fitting 2. The lower end of the first baffle portions 2b is higher than the lower end of the pipe fitting 2, and the upper end of the first baffle portions 2b is lower than the upper end of the pipe fitting 2. Two adjacent pipe bodies 1 abut against the upper and lower ends of the first baffle portions 2b respectively. The exhaust pipe 3a has several second baffle portions 3b arranged circumferentially along the pipe cap 3. The two sides of the second baffle portions 3b are respectively connected to the inner wall of the exhaust pipe 3a. The length direction of the second baffle portions 3b is consistent with the length direction of the pipe cap 3. The lower end of the second baffle portions 3b is higher than the lower end of the pipe cap 3. The upper end of the uppermost pipe body 1 abuts against the lower end of the second baffle portions 3b.

[0023] Furthermore, referring to Figure 2 and Figure 3 The air inlet 2a1 is inclined from bottom to top from the inside out. In this embodiment, it is preferred that there are multiple air inlets 2a1 and multiple exhaust outlets 3a1.

[0024] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A PVC silent drainage pipe, comprising a plurality of vertically arranged pipe bodies (1), wherein adjacent pipe bodies (1) are connected by pipe fittings (2), characterized in that, The pipe body (1) has a ventilation pipe (1a) that runs through the pipe body (1) axially. The pipe fitting (2) has a gas delivery pipe (2a) that runs through the pipe fitting (2) axially. The gas delivery pipe (2a) is connected to the ventilation pipes (1a) on two adjacent pipe bodies (1). The inner wall of the gas delivery pipe (2a) is provided with a gas delivery hole (2a1) that communicates with the inside of the pipe fitting (2). A pipe cap (3) is fitted onto the uppermost pipe body (1). The pipe cap (3) has an exhaust pipe (3a) that runs through the pipe cap (3) axially. The upper end of the exhaust pipe (3a) is closed and its lower end is connected to the ventilation pipe (1a) of the pipe body (1). The outer wall of the exhaust pipe (3a) is provided with an exhaust hole (3a1) that communicates with the outside of the pipe cap (3).

2. The PVC silent drainage pipe according to claim 1, characterized in that, The two adjacent pipe bodies (1) are respectively inserted and fixed at the upper and lower ends of the gas transmission pipe (2a) of the fitting (2), and the upper end of the uppermost pipe body (1) is inserted and fixed at the lower end of the exhaust pipe (3a) of the cap (3).

3. A PVC silent drainage pipe according to claim 2, characterized in that, The gas pipeline (2a) has several first partition sections (2b) arranged around the pipe fitting (2). The two sides of the first partition section (2b) are connected to the inner wall of the gas pipeline (2a). The length direction of the first partition section (2b) is consistent with the length direction of the pipe fitting (2). The lower end of the first partition section (2b) is higher than the lower end of the pipe fitting (2), and the upper end of the first partition section (2b) is lower than the upper end of the pipe fitting (2). Two adjacent pipe bodies (1) abut against the upper and lower ends of the first partition section (2b).

4. A PVC silent drainage pipe according to claim 2, characterized in that, The exhaust pipe (3a) has several second baffle portions (3b) arranged around the circumference of the cap (3). The two sides of the second baffle portions (3b) are connected to the inner wall of the exhaust pipe (3a). The length direction of the second baffle portions (3b) is consistent with the length direction of the cap (3). The lower end of the second baffle portions (3b) is higher than the lower end of the cap (3), and the upper end of the uppermost pipe body (1) abuts against the lower end of the second baffle portions (3b).

5. A PVC silent drainage pipe according to claim 1, 2, 3, or 4, characterized in that, The air inlet (2a1) is inclined from the inside out and from bottom to top.

6. A PVC silent drainage pipe according to claim 5, characterized in that, The air inlet (2a1) and air outlet (3a1) each have multiple outlets.

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