Helical duct material with hollow sound-damping chamber

Abstract

The present application relates to the technical field of flow guide pipe material, and discloses a spiral flow guide pipe material with a hollow sound insulation cavity, which comprises a spiral pipe assembly provided with a first pipe body, a first conical pipe and a second conical pipe of the first pipe body, and a groove for spiral flow guide is formed in the inner side of the first conical pipe; a sound insulation assembly is installed on the outer side of the spiral pipe assembly and is provided with a second pipe body and a third pipe body, the third pipe body forms a first cavity with the spiral pipe assembly, and the second pipe body, the third pipe body and the spiral pipe assembly form a second cavity; when water flows to the bottom of the first conical pipe, a vortex is generated, the sound generated in this place during the water flow is the loudest, the sound generated by the water flow at the bottom of the first conical pipe is isolated by the first cavity, the sound generated by the water flow at the top of the first conical pipe and the sound isolated by the first cavity is isolated again by the second cavity, so that the sound generated by the water flow in the pipe material is effectively eliminated.

Description

Technical Field

[0001] This invention relates to the field of flow guide pipe technology, specifically a spiral flow guide pipe with a hollow silencing cavity. Background Technology

[0002] In high-rise commercial and residential buildings, rainwater downpipes are typically laid along bathrooms, kitchens, or manholes. These long pipes with significant drops cause rainwater to fall at high speeds under gravity, easily colliding violently with the pipe walls and fittings, generating water hammer and water flow noise. This noise can propagate into the room through the pipe walls, supporting components, and walls, severely impacting residents' comfort and becoming a pressing issue for high-rise building drainage systems. To reduce noise, existing technologies often use spiral silencer pipes, incorporating spiral guide ribs inside the pipe to rotate the water flow along the wall, reducing direct impact and air entrainment, thus lowering some noise. However, the noise reduction capability of simple spiral pipes is limited, especially under high flow velocity and high flow conditions, where water hammer and impact noise remain significant, and they are insufficient in blocking low-frequency noise. Other ordinary silencer pipes achieve noise reduction through porous layers or soft sound-absorbing layers, but their structural strength and ring stiffness are often low, making them prone to deformation and collapse under vertical shaft installation, backfilling pressure, or long-term loads, affecting drainage smoothness and service life. Therefore, existing rainwater downpipes cannot simultaneously meet the requirements of flow guidance and noise reduction, sound insulation, and ring stiffness. There is an urgent need for a spiral flow guiding pipe with a hollow silencing cavity, so that while spiral flow guidance reduces impact noise, the hollow silencing cavity can block the propagation of sound waves and improve the pipe's resistance to pressure deformation. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a spiral guide pipe with a hollow silencing cavity, which has advantages such as silent drainage and support to prevent deformation, thus solving the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a spiral guide pipe with a hollow silencing cavity, comprising: A spiral tube assembly is provided with a first tube body, and a first conical tube and a second conical tube are respectively provided at the top and bottom of the first tube body. A groove for spiral flow guidance is opened on the inner side of the first conical tube. The sound insulation component is installed on the outside of the spiral tube assembly and has a second tube and a third tube. The third tube and the spiral tube assembly form a first chamber, and the second tube, the third tube and the spiral tube assembly form a second chamber. The sound generated by the flow of water inside the spiral tube assembly is isolated through the first chamber and the second chamber.

[0005] When water enters the spiral tube assembly, it spirals down along the groove inside the first conical tube, reducing the vertical drop of the water flowing inside the spiral tube assembly. This converts the potential energy of the water falling vertically into the kinetic energy of moving down the spiral along the groove, thereby reducing the sound generated by the water hitting the tube body. When the water flows to the bottom of the first conical tube, it will generate a vortex, and the sound generated at this point is the loudest. The sound generated by the water flowing at the bottom of the first conical tube is isolated by the first chamber. The sound generated by the water flowing at the top of the first conical tube, as well as the sound isolated by the first chamber, is isolated again by the second chamber, thus effectively eliminating the sound generated by the water flowing inside the tube.

[0006] Preferably, a first tube body is fixedly connected to the bottom of the first tapered tube, a second tapered tube is fixedly connected to the bottom of the first tube body, and a groove is formed on the inner side of the first tapered tube.

[0007] Preferably, a second plate is fixedly connected to the inner side of the second tube, a third tube is fixedly connected to the inner side of the second plate, and a third plate is fixedly connected to the inner side of the third tube.

[0008] Preferably, a flow guiding and buffering assembly is fixedly connected to the inner side of the first tapered tube. The flow guiding and buffering assembly includes a ring body, a first rod body is fixedly connected to the outer side of the ring body, a spring is fixedly connected to the top of the ring body, and a first plate body is fixedly connected to the top of the spring.

[0009] Preferably, a second rod is fixedly connected to the bottom of the first plate, a first cone is fixedly connected to the bottom of the second rod, and a second cone is fixedly connected to the top of the first plate.

[0010] Preferably, the outer shape of the first conical tube is the same as the outer shape of the second conical tube, the outer diameter of the bottom of the first conical tube is the same as the outer diameter of the first tube body, and the groove is composed of multiple spiral grooves.

[0011] Preferably, the top and bottom of the second plate are both provided with bevels on the side close to the spiral tube assembly, the bevels of the second plate are attached to the outer side of the first tapered tube and the second tapered tube, and the side of the second plate away from the second tube is attached to the outer side of the third tube.

[0012] Preferably, the top and bottom of the third plate are provided with inclined surfaces, and the inclined surfaces of the third plate are attached to the outer sides of the first and second conical tubes.

[0013] Preferably, the outer side of the first rod is fixedly connected to the inner side of the first tube, the axis of the ring is on the same straight line as the axis of the first tube, the axis of the ring is on the same straight line as the axis of the second rod, and the diameter of the inner side of the ring is clearance-fitted with the diameter of the second rod.

[0014] Preferably, the inclination angle of the outer side of the first cone is the same as the inclination angle of the inner side of the second conical tube, and the diameter of the top of the first cone is the same as the diameter of the second rod. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the top structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the present invention; Figure 3 This is a schematic cross-sectional view of the second tube body of the present invention; Figure 4 This is a schematic cross-sectional view of the third tube section of the present invention; Figure 5 This is a schematic diagram of the spiral tube assembly structure of the present invention; Figure 6 This is a schematic diagram of the flow guiding and buffering component structure of the present invention; Figure 7 This is a schematic diagram of the sound insulation component structure of the present invention.

[0016] In the diagram: 100, spiral tube assembly; 110, first conical tube; 120, first tube body; 130, second conical tube; 140, trough; 200, flow guiding and buffering assembly; 210, ring body; 220, first rod body; 230, second rod body; 240, first cone; 250, first plate body; 260, second cone body; 270, spring; 300, sound insulation assembly; 310, second tube body; 320, second plate body; 330, third tube body; 340, third plate body. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] As described in the background section, the existing technology has shortcomings. To address the above-mentioned technical problems, this application proposes a spiral guide pipe with a hollow silencing cavity, comprising: The spiral tube assembly 100 is provided with a first pipe 120, and a first tapered tube 110 and a second tapered tube 130 are respectively provided at the top and bottom of the first pipe 120. A groove 140 for spiral flow guidance is opened on the inner side of the first tapered tube 110. The sound insulation component 300 is installed on the outside of the spiral tube assembly 100 and is provided with a second tube body 310 and a third tube body 330. The third tube body 330 and the spiral tube assembly 100 form a first chamber, and the second tube body 310, the third tube body 330 and the spiral tube assembly 100 form a second chamber. The sound generated by the flow of water inside the spiral tube assembly 100 is isolated through the first chamber and the second chamber.

[0019] Because of the above-mentioned technical features of this invention, when water enters the spiral tube assembly 100, it spirals down along the groove 140 inside the first conical tube 110, reducing the vertical drop of the water flowing inside the spiral tube assembly 100. This converts the potential energy of the water falling vertically into the kinetic energy of the water moving spirally down along the groove 140, thereby reducing the sound generated by the water falling vertically and impacting the tube. When the water flows to the bottom of the first conical tube 110, it will generate a vortex, and the sound generated at this point is the loudest. The sound generated by the water flowing at the bottom of the first conical tube 110 is isolated by the first chamber, and the sound generated by the water flowing at the top of the first conical tube 110 and the sound isolated by the first chamber are isolated again by the second chamber, thereby effectively eliminating the sound generated by the water flowing inside the tube.

[0020] The following describes in detail the specific implementation methods for achieving the above-mentioned technical features and the effects that can be further produced.

[0021] In one specific embodiment, a first conical tube 110 is fixedly connected to a first pipe 120 at its bottom, a second conical tube 130 is fixedly connected to the bottom of the first pipe 120, and a groove 140 is opened on the inner side of the first conical tube 110. The first conical tube 110, the first pipe 120 and the second conical tube 130 constitute a spiral tube assembly 100.

[0022] In one specific implementation, a second plate 320 is fixedly connected to the inner side of the second pipe body 310, a third pipe body 330 is fixedly connected to the inner side of the second plate body 320, a third plate 340 is fixedly connected to the inner side of the third pipe body 330, and the second pipe body 310, the second plate body 320, the third pipe body 330 and the third plate 340 constitute a sound insulation component 300. The second plate body 320 and the third plate body 340 effectively support the pipe, and can effectively distribute the pressure under the action of external force to avoid pipe deformation.

[0023] During the implementation of the above scheme, there are some technical problems. Specifically, the water source descends spirally inside the spiral tube assembly 100. When the water flow is large, the water source in the middle cannot generate a spiral water source to slow down the falling potential energy of the water source. When the water flow is small, the water source falls away from the first conical tube 110 and falls along the middle of the first pipe 120, which prevents the water source from entering the inner side of the next first conical tube 110, thus preventing the normal soundproofing work.

[0024] A flow guiding and buffering assembly 200 is fixedly connected to the inner side of the first tapered tube 110. The flow guiding and buffering assembly 200 includes a ring body 210. A first rod body 220 is fixedly connected to the outer side of the ring body 210. A spring 270 is fixedly connected to the top of the ring body 210. A first plate body 250 is fixedly connected to the top of the spring 270.

[0025] The bottom of the first plate 250 is fixedly connected to the second rod 230, the bottom of the second rod 230 is fixedly connected to the first cone 240, and the top of the first plate 250 is fixedly connected to the second cone 260.

[0026] To solve the aforementioned technical problems, the present invention installs a flow-guiding buffer assembly 200 inside the spiral tube assembly 100. Depending on the usage environment, the flow-guiding buffer assembly 200 is installed at different intervals between spiral tube assemblies 100. When the water source falls, it is diverted by the second cone 260, and then guided by the first cone 240, causing the water source to diffuse outward and fall to the inner side of the first conical tube 110 located at the bottom of the installation location of the flow-guiding buffer assembly 200, where it is further guided by the trough 140. As the water flow rate increases, the pressure on the first cone 240 increases, causing the first cone 240 and the second rod 230 to descend and compress the spring 270 through the first plate 250, thereby increasing the space for water flow between the first cone 240 and the second conical tube 130. This ensures that the flow-guiding buffer assembly 200 only buffers and guides the water source without affecting the flow rate.

[0027] Preferably, the outer shape of the first tapered tube 110 is the same as the outer shape of the second tapered tube 130, the outer diameter of the bottom of the first tapered tube 110 is the same as the outer diameter of the first pipe 120, and the groove 140 is composed of multiple spiral grooves.

[0028] Preferably, the top and bottom of the second plate 320 are provided with bevels on the side close to the spiral tube assembly 100, the bevels of the second plate 320 are attached to the outer side of the first tapered tube 110 and the second tapered tube 130, and the side of the second plate 320 away from the second tube 310 is attached to the outer side of the third tube 330.

[0029] Preferably, the top and bottom of the third plate 340 are provided with inclined surfaces, and the inclined surfaces of the third plate 340 are attached to the outer sides of the first tapered tube 110 and the second tapered tube 130.

[0030] Preferably, the outer side of the first rod 220 is fixedly connected to the inner side of the first pipe 120, the axis of the ring 210 is on the same straight line as the axis of the first pipe 120, the axis of the ring 210 is on the same straight line as the axis of the second rod 230, and the diameter of the inner side of the ring 210 is clearance-fitted with the diameter of the second rod 230.

[0031] Preferably, the inclination angle of the outer side of the first cone 240 is the same as the inclination angle of the inner side of the second cone tube 130, and the diameter of the top of the first cone 240 is the same as the diameter of the second rod 230.

[0032] Working principle: When water enters the spiral tube assembly 100, it spirals down along the groove 140 inside the first conical tube 110, reducing the vertical drop of the water flowing inside the spiral tube assembly 100. This converts the potential energy of the water falling vertically into the kinetic energy of the water moving spirally down along the groove 140, thereby reducing the sound generated by the water hitting the tube body. When the water flows to the bottom of the first conical tube 110, a vortex is generated, and the sound generated at this point is the loudest. The sound generated by the water flowing at the bottom of the first conical tube 110 is isolated by the first chamber. The sound generated by the water flowing at the top of the first conical tube 110, as well as the sound isolated by the first chamber, is isolated again by the second chamber, thus effectively eliminating the sound generated by the water flowing inside the tube. A flow-guiding buffer assembly 200 is installed inside the spiral tube assembly 100. Depending on the usage environment, the flow-guiding buffer assembly 200 is installed at different intervals between spiral tube assemblies 100. When the water source falls, it is diverted by the second cone 260 and then guided by the first cone 240, causing the water source to diffuse outward and fall to the inner side of the first conical tube 110 located at the bottom of the installation location of the flow-guiding buffer assembly 200. It is then further guided by the trough 140. As the water flow rate increases, the pressure on the first cone 240 increases, causing the first cone 240 and the second rod 230 to descend and compress the spring 270 through the first plate 250, thereby increasing the space for water flow between the first cone 240 and the second conical tube 130. This ensures that the flow-guiding buffer assembly 200 only buffers and guides the water source without affecting the flow rate.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spiral guide pipe with a hollow silencing cavity, characterized in that, include: The spiral tube assembly (100) is provided with a first pipe (120), and a first conical tube (110) and a second conical tube (130) are respectively provided at the top and bottom of the first tube body (120). A groove (140) for spiral flow guidance is opened on the inner side of the first conical tube (110). A sound insulation component (300) is installed on the outside of the spiral tube assembly (100) and is provided with a second tube body (310) and a third tube body (330). The third tube body (330) and the spiral tube assembly (100) form a first chamber, and the second tube body (310), the third tube body (330) and the spiral tube assembly (100) form a second chamber. The sound generated by the flow of water inside the spiral tube assembly (100) is isolated through the first chamber and the second chamber.

2. The spiral guide pipe with a hollow silencing cavity according to claim 1, characterized in that: The bottom of the first tapered tube (110) is fixedly connected to a first tube body (120), the bottom of the first tube body (120) is fixedly connected to a second tapered tube (130), and a groove (140) is opened on the inner side of the first tapered tube (110).

3. A spiral guide pipe with a hollow silencing cavity according to claim 2, characterized in that: The inner side of the second tube (310) is fixedly connected to the second plate (320), the inner side of the second plate (320) is fixedly connected to the third tube (330), the inner side of the second plate (320) is fixedly connected to the third tube (330), and the inner side of the third tube (330) is fixedly connected to the third plate (340).

4. A spiral guide pipe with a hollow silencing cavity according to claim 3, characterized in that: The inner side of the first tapered tube (110) is fixedly connected to a flow guiding buffer assembly (200), the flow guiding buffer assembly (200) includes a ring body (210), the outer side of the ring body (210) is fixedly connected to a first rod body (220), the top of the ring body (210) is fixedly connected to a spring (270), and the top of the spring (270) is fixedly connected to a first plate body (250).

5. A spiral guide pipe with a hollow silencing cavity according to claim 4, characterized in that: The bottom of the first plate (250) is fixedly connected to the second rod (230), the bottom of the second rod (230) is fixedly connected to the first cone (240), and the top of the first plate (250) is fixedly connected to the second cone (260).

6. A spiral guide pipe with a hollow silencing cavity according to claim 2, characterized in that: The outer shape of the first tapered tube (110) is the same as the outer shape of the second tapered tube (130), the outer diameter of the bottom of the first tapered tube (110) is the same as the outer diameter of the first tube body (120), and the groove (140) is composed of multiple spiral grooves.

7. A spiral guide pipe with a hollow silencing cavity according to claim 3, characterized in that: The top and bottom of the second plate (320) are both provided with bevels on the side close to the spiral tube assembly (100). The bevels of the second plate (320) are attached to the outer side of the first tapered tube (110) and the second tapered tube (130). The side of the second plate (320) away from the second tube (310) is attached to the outer side of the third tube (330).

8. A spiral guide pipe with a hollow silencing cavity according to claim 3, characterized in that: The top and bottom of the third plate (340) are both provided with inclined surfaces, and the inclined surfaces of the third plate (340) are attached to the outer sides of the first tapered tube (110) and the second tapered tube (130).

9. A spiral guide pipe with a hollow silencing cavity according to claim 5, characterized in that: The outer side of the first rod (220) is fixedly connected to the inner side of the first tube (120). The axis of the ring (210) is on the same straight line as the axis of the first tube (120). The axis of the ring (210) is on the same straight line as the axis of the second rod (230). The diameter of the inner side of the ring (210) is clearance-fitted with the diameter of the second rod (230).

10. A spiral guide pipe with a hollow silencing cavity according to claim 5, characterized in that: The inclination angle of the outer side of the first cone (240) is the same as the inclination angle of the inner side of the second cone tube (130), and the diameter of the top of the first cone (240) is the same as the diameter of the second rod (230).

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