Double-hollow three-wall spiral hush pipe

Abstract

The utility model provides a double-hollow three-wall spiral hush pipe, which belongs to the technical field of pipelines and comprises a first pipe wall, a second pipe wall, a third pipe wall, a first connecting support and a second connecting support, the second pipe wall is arranged outside the first pipe wall, and a first cavity is formed between the second pipe wall and the first pipe wall; the third pipe wall is arranged outside the second pipe wall, and a second cavity is formed between the third pipe wall and the second pipe wall; the multiple first connecting supports are arranged in the first cavity at intervals and used for supporting the first pipe wall and the second pipe wall; the second connecting supports are arranged in the second cavity at intervals and used for supporting the second pipe wall and the third pipe wall. The noise elimination device can effectively improve the noise elimination effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipelines, and more specifically relates to a double-hollow three-wall spiral silencer pipe. Background Art

[0002] The pipe network water supply and drainage system is an important construction step in construction projects. The current water supply and drainage system is divided into ordinary single riser, ordinary double riser and special single riser. It can be seen that the pipe is the main component of the drainage system, and good quality pipes will also ensure the safety and stability of the drainage system. Nowadays, with the improvement of people's quality of life and environmental protection requirements, people's requirements for pipes are also increasing. In addition to requiring the safety and stability of drainage system pipes, people are also more concerned about the problem of noise.

[0003] Most of the pipes in the current related technology are not equipped with noise-absorbing structures. When draining water, the pipes laid on the outside of the wall can hear the clear sound of water flow, and the noise of the water flow will become louder as the impact force generated by the water flow increases, thereby affecting people's lives. It can be seen that the existing drainage pipes have poor noise reduction effect. Summary of the Invention

[0004] The purpose of the utility model is to provide a double hollow three-wall spiral silencer pipe to solve the problem that the existing drainage pipe noise elimination effect is poor in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a double-hollow three-wall spiral silencer pipe, including a first pipe wall, a second pipe wall, a third pipe wall, a plurality of first connecting brackets and a plurality of second connecting brackets, the second pipe wall is arranged outside the first pipe wall, and forms a first cavity between the second pipe wall and the first pipe wall; the third pipe wall is arranged outside the second pipe wall, and forms a second cavity between the third pipe wall and the second pipe wall; a plurality of first connecting brackets are arranged at intervals in the first cavity to support the first pipe wall and the second pipe wall; a plurality of second connecting brackets are arranged at intervals in the second cavity to support the second pipe wall and the third pipe wall.

[0006] In combination with the above technical solution, in a possible implementation manner, the first tube wall, the second tube wall, the third tube wall, the multiple first connecting brackets and the multiple second connecting brackets are an integrally formed structure.

[0007] In combination with the above technical solution, in a possible implementation manner, the first connecting brackets and the second connecting brackets are alternately arranged.

[0008] In combination with the above technical solution, in a possible implementation manner, the first connecting bracket and the second connecting bracket are spirally arranged in the length direction of the second tube wall.

[0009] In combination with the above technical solution, in a possible implementation, the thickness of the third tube wall and the thickness of the first tube wall are both greater than the thickness of the second tube wall.

[0010] In combination with the above technical solution, in a possible implementation method, a shock-absorbing protrusion is provided on at least one of the inner wall of the first tube wall facing the first cavity, the inner wall of the third tube wall facing the second cavity, the second tube wall, the first connecting bracket and the second connecting bracket.

[0011] In combination with the above technical solution, in a possible implementation, the shock-absorbing ridges are a T-shaped structure in cross section, and the shock-absorbing ridges are evenly distributed.

[0012] In combination with the above technical solution, in one possible implementation method, a guide strip and a guide groove are provided on the side of the first tube wall facing away from the first cavity. The guide strip is provided on the inner side of the first tube wall and is arranged opposite to the direct current through hole in the first cavity; the guide groove is provided on the inner side of the first tube wall, and the top of the guide groove is connected to the outer wall of one side of the first cavity and is spaced apart from the guide strip.

[0013] In combination with the above technical solution, in a possible implementation, the guide strips and the guide grooves are both axially spirally arranged along the length of the first tube wall.

[0014] In combination with the above technical solution, in a possible implementation, a sound-absorbing material filling body is provided in the first cavity or the second cavity.

[0015] The beneficial effect of the double-hollow three-wall spiral silencer provided by the utility model is that: compared with the existing technology, the double-hollow three-wall spiral silencer provided by the utility model, the first tube wall, the second tube wall and the third tube wall set can form a double-layer cavity so that the sound wave will enter the second cavity after the first cavity and reflect again, and the sound intensity is reduced by increasing the propagation path length of the sound wave. At the same time, the direct current through hole formed by the first connecting bracket separating the first cavity and the direct current through hole formed by the second connecting bracket separating the second cavity can increase the propagation path of the sound wave again, further reducing the sound intensity, and effectively improving the noise elimination result by reducing the sound intensity multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 A schematic diagram of a cross-sectional structure provided for an embodiment of the present utility model;

[0018] Figure 2 A schematic diagram of the cross-sectional structure of a double-hollow three-wall spiral silencer pipe provided in another embodiment of the present invention;

[0019] Figure 3 For this utility model Figure 2 A partially enlarged schematic diagram of the shock-absorbing ribs of the double-hollow three-wall spiral silencer provided in the embodiment;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of a double-hollow three-wall spiral silencer pipe provided in yet another embodiment of the present invention.

[0021] Among them, the reference numerals in the figures are as follows:

[0022] First tube wall; 11, second tube wall; 12, third tube wall; 13, first cavity; 14, second cavity; 15, guide strip; 16, guide groove;

[0023] First connecting bracket; 21, second connecting bracket;

[0024] 30. Shock-absorbing ribs. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described are only part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] It should be further explained that the drawings and implementation methods of the present invention mainly describe the concept of the present invention. On the basis of this concept, some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems, etc. The specific forms and settings may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a familiar manner.

[0027] When an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0028] The directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself. The terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate the directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0029] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be subsequently positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used herein are interpreted accordingly.

[0030] The double-hollow three-wall spiral silencer provided by the utility model is now described.

[0031] like Figures 1 to 4 As shown, the first embodiment of the present invention provides a double-hollow three-wall spiral silencer, including a first pipe wall 10, a second pipe wall 11, a third pipe wall 12, a first connecting bracket 20 and a second connecting bracket 21. The second pipe wall 11 is arranged outside the first pipe wall 10 and forms a first cavity 13 with the first pipe wall 10; the third pipe wall 12 is arranged outside the second pipe wall 11 and forms a second cavity 14 with the second pipe wall 11; a plurality of first connecting brackets 20 are arranged at intervals in the first cavity 13 to support the first pipe wall 10 and the second pipe wall 11; a plurality of second connecting brackets 21 are arranged at intervals in the second cavity 14 to support the second pipe wall 11 and the third pipe wall 12.

[0032] The double hollow three-wall spiral silencer provided in this embodiment is compared with the prior art. The first tube wall 10, the second tube wall 11 and the third tube wall 12 provided in the double hollow three-wall spiral silencer provided by the utility model can form a double-layer cavity so that the sound wave will enter the second cavity 14 after the first cavity 13 and reflect again, thereby reducing the sound intensity by increasing the propagation path length of the sound wave. At the same time, the direct current through hole formed by the first connecting bracket 20 separating the first cavity 13 and the direct current through hole formed by the second connecting bracket 21 separating the second cavity 14 can increase the propagation path of the sound wave again, further reducing the sound intensity. By reducing the sound intensity multiple times, the noise elimination result is effectively improved.

[0033] like Figures 1 to 4 As shown, the present invention provides a specific embodiment based on the first embodiment as follows:

[0034] like Figure 1 As shown, the first tube wall 10 , the second tube wall 11 , the third tube wall 12 , the plurality of first connecting brackets 20 and the plurality of second connecting brackets 21 are an integrally formed structure, specifically, a structure formed by die extrusion.

[0035] like Figure 1 As shown, the first connecting bracket 20 and the second connecting bracket 21 can be aligned with each other or arranged in a staggered manner. In a specific embodiment, the first connecting bracket 20 and the second connecting bracket 21 are arranged alternately so as to utilize the second pipe wall 11 to perform a certain amount of energy dissipation and reduce the radial propagation of sound vibration.

[0036] Furthermore, the first connecting bracket 20 and the second connecting bracket 21 are spirally arranged in the length direction of the second tube wall 11. The spirally arranged first connecting bracket 20 and second connecting bracket 21 not only optimize the airflow path and improve the sound insulation performance, but also ensure stable installation and support.

[0037] like Figure 1 As shown, the thickness of the third tube wall 12 and the thickness of the first tube wall 10 are both greater than the thickness of the second tube wall 11, so that the sound vibration on the second tube wall 11 can be better dissipated by the second tube wall 11. At the same time, by increasing the thickness of the inner and outer walls, the structural strength of the double-hollow three-wall spiral silencer can be effectively improved.

[0038] like Figure 2 As shown, at least one of the inner wall of the first tube wall 10 facing the first cavity 13, the inner wall of the third tube wall 12 facing the second cavity 14, the second tube wall 11, the first connecting bracket 20, and the second connecting bracket 21 is provided with a shock-absorbing rib 30. In some specific embodiments, the shock-absorbing rib 30 is provided on both sides of the second tube wall 11.

[0039] like Figure 3As shown, shock-absorbing ribs 30 are provided on both sides of the second tube wall 11. Optionally, the shock-absorbing ribs 30 in this embodiment have a T-shaped cross-section, and multiple shock-absorbing ribs 30 are evenly distributed. The special T-shaped profile increases the contact area between the sound waves and the pipeline, which can better transmit and consume energy.

[0040] like Figure 4 As shown, a guide bar 15 and a guide groove 16 are provided on the side of the first tube wall 10 facing away from the first cavity 13. The guide bar 15 is provided on the inner side of the first tube wall 10 and is arranged opposite the direct current through hole in the first cavity 13. The provision of the guide bar 15 can guide the airflow along a predetermined path, ensure that the gas passes smoothly through the direct current through hole, and reduce the noise caused by the high-speed airflow impacting the tube wall. The guide groove 16 is provided on the inner side of the first tube wall 10, with the top end of the guide groove 16 connected to the outer wall of one side of the first cavity 13 and spaced apart from the guide bar 15. It can be understood that the combined effect of the guide bar 15 and the guide groove 16 forms an efficient noise reduction system to effectively control the airflow pattern while minimizing noise.

[0041] Furthermore, the guide strips 15 and the guide grooves 16 are both axially spirally arranged along the length of the first tube wall 10 .

[0042] In order to further improve the sound-absorbing effect, a sound-absorbing material filling body is provided in the first cavity 13 or the second cavity 14. Optionally, in this embodiment, the sound-absorbing material filling body may be glass wool, rock wool, expanded perlite, or the like.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

Claims

1. A double hollow three-wall spiral silencer, characterized in that: include: a first tube wall (10); A second tube wall (11) is provided outside the first tube wall (10) and forms a first cavity (13) between the second tube wall and the first tube wall (10); A third tube wall (12) is provided outside the second tube wall (11) and forms a second cavity (14) between the third tube wall and the second tube wall (11); a plurality of first connecting brackets (20) arranged at intervals in the first cavity (13) for supporting the first tube wall (10) and the second tube wall (11); A plurality of second connecting brackets (21) are arranged at intervals in the second cavity (14) to support the second tube wall (11) and the third tube wall (12).

2. The double hollow three-wall spiral silencer according to claim 1, characterized in that: The first tube wall (10), the second tube wall (11), the third tube wall (12), the plurality of first connecting brackets (20), and the plurality of second connecting brackets (21) are an integrally formed structure.

3. The double hollow three-wall spiral silencer pipe according to claim 1, characterized in that: The first connecting brackets (20) and the second connecting brackets (21) are arranged alternately.

4. The double hollow three-wall spiral silencer according to claim 1, characterized in that: The first connecting bracket (20) and the second connecting bracket (21) are spirally arranged in the length direction of the second tube wall (11).

5. The double hollow three-wall spiral silencer pipe according to claim 1, characterized in that: The thickness of the third tube wall (12) and the thickness of the first tube wall (10) are both greater than the thickness of the second tube wall (11).

6. The double hollow three-wall spiral silencer pipe according to claim 1, characterized in that: A shock-absorbing rib (30) is provided on at least one of the inner wall of the first tube wall (10) facing the first cavity (13), the inner wall of the third tube wall (12) facing the second cavity (14), the second tube wall (11), the first connecting bracket (20), and the second connecting bracket (21).

7. The double hollow three-wall spiral silencer pipe according to claim 6, characterized in that: The shock-absorbing convex strips (30) are of a T-shaped structure in cross section, and the shock-absorbing convex strips (30) are evenly distributed.

8. The double hollow three-wall spiral silencer pipe according to claim 1, characterized in that: The first tube wall (10) is provided on a side facing away from the first cavity (13): A guide bar (15) is provided on the inner side of the first tube wall (10) and is arranged opposite to the direct current through hole in the first cavity (13); A guide groove (16) is provided on the inner side of the first tube wall (10), the top end of the guide groove (16) is connected to the outer wall of one side of the first cavity (13), and is spaced apart from the guide bar (15).

9. The double hollow three-wall spiral silencer pipe according to claim 8, characterized in that: The guide strip (15) and the guide groove (16) are both axially spirally arranged along the length of the first tube wall (10).

10. The double hollow three-wall spiral silencer pipe according to claim 1, characterized in that: A sound-absorbing material filling body is provided in the first cavity (13) or the second cavity (14).

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