Noise reduction double pipe joint for building drainage riser

Abstract

The utility model discloses building drainage riser sound insulation double -layer pipe joint, and the joint main part is tubular structure, including inner tube interface, outer tube interface and exhaust hole, wherein inner tube interface and outer tube interface set up in the both ends, exhaust hole is located in the pipe wall of joint main part, is equipped with gas hole and air inlet on exhaust hole, wherein the gas hole is vertically upward from the upper end of joint main part, and the air inlet is communicated with the gas hole and is inclined upward from the inner wall of joint main part and passes in. Inner tube interface and outer tube interface are connected with inner tube and outer tube respectively and form double -layer pipeline structure, wherein the inner tube plays the role of drainage, and the outer tube plays the role of exhaust, ensure the smooth drainage of light sound, stable and smooth. The utility model has the advantages that when the riser drainage, the air under the water flow can be smoothly discharged, and any air resistance phenomenon will not be caused, and similar to the principle of gun silencer, reduce the noise intensity and improve the drainage capacity.

Description

Technical Field

[0001] This utility model relates to a building drainage pipe fitting, and more particularly to a building drainage riser sound-absorbing double-layer pipe joint. Background Technology

[0002] Currently, UPVC drainage pipes and fittings are frequently used in building drainage riser systems. To ensure smooth water flow and avoid drainage resistance and noise caused by water and air mixing, existing technologies often employ H-joint double riser systems or vortex pipe systems. H-joint double riser systems occupy a large space, are not material-efficient, and have slightly higher construction costs. Vortex pipe systems have complex components; water flow diversion and rotation require prominently protruding vortex blades inside the pipe, which can cause debris in the water flow to impact and suspend, even clogging. Therefore, while both solutions aim to address drainage issues and reduce noise, neither is perfect. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a method that reduces air resistance and installation space during the descent of water in drainage risers, while also preventing water vapor impact and buffering sound wave energy through rapid air evacuation, thereby achieving noise reduction.

[0004] To achieve the above objectives, the technical solution of this utility model is: a sound-absorbing double-layer pipe joint for building drainage risers. The joint body is a tubular structure, including an inner pipe interface, an outer pipe interface, and an exhaust hole. The inner pipe interface and the outer pipe interface are located at the upper and lower ends, and the exhaust hole is located inside the pipe wall of the joint body. The exhaust hole is provided with an air outlet and an air inlet. The air outlet extends vertically upward from the upper end of the joint body, and the air inlet enters from the inner wall of the joint body and is inclined upward to communicate with the air outlet.

[0005] The number of exhaust ports is at least two; The air inlet is one or more that are connected to the air outlet; The inner pipe interface and the outer pipe interface are connected to the inner pipe and the outer pipe respectively to form a double-layer pipe structure.

[0006] The outstanding advantage of this utility model is that when the riser drains water, the air below the water flow can be discharged smoothly without causing any air resistance. It is similar to the principle of a gun silencer, which reduces noise intensity and improves drainage capacity. Attached Figure Description

[0007] Figure 1 This is a structural cross-sectional view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a cross-sectional view of the double-layer pipe structure formed after the present invention is connected with the pipe. Detailed Implementation

[0008] like Figure 1-3 As shown, a sound-absorbing double-layer pipe joint for building drainage risers has a tubular main body, including an inner pipe interface 1, an outer pipe interface 2, and an exhaust hole 3. The inner pipe interface 1 and the outer pipe interface 2 are located at the upper and lower ends, respectively. The exhaust hole 3 is located inside the pipe wall of the main body of the joint. The exhaust hole 3 is provided with an air outlet 31 and an air inlet 32. The air outlet 31 extends vertically upward from the upper end of the main body of the joint, and the air inlet 32 ​​enters from the inner wall of the main body of the joint and is inclined upward to communicate with the air outlet 31.

[0009] The number of exhaust holes 3 is at least two; The air inlet 32 ​​is one or more that are connected to the air outlet 31; The inner pipe interface and the outer pipe interface are connected to the inner pipe and the outer pipe respectively to form a double-layer pipe structure.

[0010] When the riser drains water, the air below the water flow will be quickly expelled, reducing airflow resistance and preventing the generation of loud water-air collision noise. The sound wave capacity will also be partially buffered by the expelled air, thus making the drainage smoother and having a noise reduction effect similar to a gun silencer.

[0011] The advantages of this solution compared to existing technologies are: when the riser is draining water, the air below the water flow can be discharged smoothly without causing any air resistance, and it is similar to the principle of a gun silencer, which reduces noise intensity and improves drainage capacity.

Claims

1. A sound-absorbing double-layer pipe joint for building drainage risers, the main body of the joint is a tubular structure, including an inner pipe interface (1), an outer pipe interface (2) and an exhaust hole (3), wherein the inner pipe interface (1) and the outer pipe interface (2) are located at the upper and lower ends, the exhaust hole (3) is located inside the pipe wall of the main body of the joint, and the exhaust hole (3) is provided with an air outlet (31) and an air inlet (32), wherein the air outlet (31) extends vertically upward from the upper end of the main body of the joint, and the air inlet (32) enters from the inner wall of the main body of the joint and is inclined upward to communicate with the air outlet (31).

2. The sound-absorbing double-layer pipe joint for building drainage risers as described in claim 1, characterized in that... The exhaust port (3) is at least two.

3. The sound-absorbing double-layer pipe joint for building drainage risers as described in claim 1, characterized in that... The air inlet (32) is one or more that are connected to the air outlet (31).

4. The sound-absorbing double-layer pipe joint for building drainage risers as described in claim 1, characterized in that... The inner pipe interface (1) and the outer pipe interface (2) are connected to the inner pipe (4) and the outer pipe (5) respectively to form a double-layer pipe structure.

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