Composite energy dissipation pipe fitting for building drainage
By designing energy-dissipating spiral blades and expanding pipe bodies in the drainage riser, combined with anti-backflow baffles, the noise, backflow, and odor problems of traditional drainage pipe fittings are solved, achieving the effects of noise reduction, backflow prevention, and odor prevention, and reducing production costs.
Patent Information
- Application Number
- CN202520768347.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Traditional drainage pipe fittings are inadequate in terms of noise reduction, preventing backflow and odor. Existing sound insulation cotton is not durable and cannot completely solve the noise problem, while spiral blades cannot prevent backflow and odor.
Design a composite energy dissipation pipe fitting, comprising energy dissipation spiral blades and an expansion pipe body, combined with an anti-backflow baffle, for use in drainage risers to reduce flow velocity and prevent backflow and odor.
It effectively reduces noise, prevents backflow and odor, improves the overall performance of the drainage system, reduces production costs, and reduces the amount of materials used in components.
Smart Images
Figure CN223839911U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building drainage technology, and in particular to a composite energy dissipation pipe fitting for building drainage. Background Technology
[0002] In the construction of urban residential buildings, in order to continuously improve people's quality of life, there have been great improvements in building materials, housing structure design, and green environmental protection. However, the noise generated by the vertical drainage pipes used in buildings when drawing water makes residents' lives lack the tranquility they should have and disrupts the living atmosphere. The adverse effects of this noise are even more obvious at night.
[0003] The noise from drainage pipes in buildings is generally caused by vibrations from water hitting the pipe walls and the noise of large water flows during flushing. The root cause of drainage pipe noise is the vibration generated by the water flow impacting the pipe walls. The sound is amplified by repeated refraction within the pipe. The greater the drainage flow and velocity, and the thinner the pipe wall, the louder the noise, which is further amplified by resonance. Current noise control mainly relies on sound insulation cotton. While this can significantly reduce noise, it only isolates the noise and does not fundamentally solve the problem. Once the sound insulation cotton loses its effectiveness after prolonged use, noise will still occur, making it less practical. Another method is to install spiral blades inside the drainage pipes to reduce noise, but this cannot prevent backflow and odor problems. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a composite energy dissipation pipe fitting for building drainage that can reduce noise and prevent backflow and odor, in order to address the above-mentioned technical problems existing in traditional drainage pipe fittings.
[0005] The technical problem to be solved by this utility model can be achieved through the following technical solution:
[0006] A composite energy dissipation pipe fitting for building drainage, which is connected in series in a drainage riser, includes a pipe body portion, on which energy dissipation spiral blades are provided on the inner wall of the pipe body portion, and a swirl port is provided at the lower end of the pipe body portion for connecting to the main horizontal drainage pipe. In addition, several pipe joints for connecting to the drainage pipe of a bathing device are also provided at the lower end of the pipe body portion. The pipe body portion is characterized in that it has an energy dissipation expansion pipe section, the diameter of which is 1.2 to 1.5 times the diameter of the drainage riser.
[0007] In a preferred embodiment of this utility model, the energy dissipation spiral blades are positioned directly above the vortex interface to prevent backflow from the drainage riser.
[0008] In a preferred embodiment of this utility model, the pitch of the energy dissipation spiral blade is 350-600 mm.
[0009] In a preferred embodiment of this utility model, a ring of anti-backflow groove is provided on the inner wall of the pipe body portion between the pipe joint and the vortex interface.
[0010] In a preferred embodiment of this utility model, both the upper and lower ends of the pipe body are provided with a telescopic flexible interface for connecting to the drainage riser.
[0011] By employing the above technical solution, the pipe body of this invention uses a section with a diameter larger than that of the drainage riser, combined with spiral blades, which slows down the drainage flow and causes it to descend spirally, reducing noise. Additionally, a ring of anti-backflow grooves is installed on the inner wall of the pipe body section between the pipe joint and the vortex interface to prevent backflow and odor from the drainage riser. This invention replaces the existing methods that rely on spiral pipes and fittings to reduce the flow rate of the drainage riser to achieve energy dissipation, overcoming the shortcomings of existing methods that use more components, have higher production costs, lower drainage flow, and suffer from backflow and fewer interfaces. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the composite energy dissipation pipe fitting for building drainage according to this utility model.
[0013] Figure 2 This is a cross-sectional view of the composite energy dissipation pipe fitting for building drainage according to this utility model. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0015] See Figure 1 and Figure 2 The figure shows a composite energy dissipation pipe fitting for building drainage, which is connected in series in a drainage riser. It includes a pipe body 100, and an energy dissipation spiral blade 200 is provided on the inner wall of the pipe body 100. The pitch of the energy dissipation spiral blade 200 is 350-600mm.
[0016] A vortex inlet 300 is provided at the lower end of the pipe body 100 to connect to the main horizontal drain pipe. The energy dissipation spiral blade 200 is positioned directly above the vortex inlet 300 to prevent backflow in the drain riser.
[0017] In addition, several pipe joints 400 for connecting the drain pipe of the bathing equipment are provided at the lower end of the pipe body 100.
[0018] The feature of this utility model is that the pipe body 100 has an energy dissipation and expansion pipe body 110, the diameter of which is 1.2 to 1.5 times the diameter of the drainage riser. Together with the energy dissipation spiral blades 200, the drainage flow rate is slowed down and spirals downward, thus reducing noise.
[0019] A backflow prevention groove 500 is provided on the inner wall of the pipe body portion 100 between the pipe joint 400 and the vortex interface 300 to further prevent backflow and odor from the drainage riser.
[0020] To facilitate connection with the drainage riser, the upper and lower ends of the pipe body 100 are each provided with a telescopic flexible interface 600 and 700 for connection with the drainage riser.
Claims
1. A composite energy-dissipating pipe fitting for building drainage, connected in series in a drainage riser, comprising a pipe body portion, energy-dissipating spiral blades disposed on the inner wall of the pipe body portion, a vortex inlet disposed at the lower end of the pipe body portion for connecting to a main horizontal drainage pipe, and further comprising a plurality of pipe fittings at the lower end of the pipe body portion for connecting to a shower equipment drain pipe, characterized in that, The pipe body includes a section of energy dissipation and expansion pipe, the diameter of which is 1.2 to 1.5 times the diameter of the drainage riser.
2. The composite energy dissipation pipe fitting for building drainage according to claim 1, characterized in that, The energy dissipation spiral blades stop directly above the vortex interface to prevent backflow in the drainage riser.
3. A composite energy dissipation pipe fitting for building drainage according to claim 1, characterized in that, The pitch of the energy-dissipating spiral blade is 350–600 mm.
4. A composite energy dissipation pipe fitting for building drainage according to any one of claims 1 to 3, characterized in that, A backflow prevention groove is provided on the inner wall of the pipe body section between the pipe joint and the vortex interface.
5. A composite energy dissipation pipe fitting for building drainage according to claim 4, characterized in that, Both the upper and lower ends of the pipe body are provided with a telescopic flexible interface that connects to the drainage riser.