Spliceable pipe bend muffler

Abstract

The utility model discloses a spliced pipeline elbow muffler, the muffler is installed to the outside of pipeline elbow, the muffler includes: along the first muffling piece and second muffling piece of pipeline elbow center symmetry plane symmetry installation, first muffling piece and second muffling piece form the muffler in the combination, first muffling piece includes the shell and sets up first sealing plate and second sealing plate at the both ends of shell, and the first sealing plate and second sealing plate form the sound attenuation chamber at the inboard of shell, and the sound attenuation chamber is movably connected with the sound attenuation assembly through the connecting component, and the sound attenuation chamber is used for filling sound attenuation material between the sound attenuation assembly and shell, the utility model provides detachable muffler, and first, second cover body is butt joint through the positioning column / groove, and the flange is fixed, and the installation is convenient, and the sound attenuation chamber fills the elastic material and cooperates the sound attenuation assembly of multilayer and promotes the sound attenuation effect, and the connecting component is hinged with the shell, and the elastic sound attenuation assembly can self -adaptation and is wrapped different diameter elbow, and the applicability is wide.

Description

Technical Field

[0001] This utility model relates to the field of pipeline noise insulation technology, and in particular to a spliced ​​pipeline elbow silencer cover. Background Technology

[0002] In the fields of pharmaceuticals, chemicals, and water purification, the use of pipelines is indispensable. When fluids flow through pipelines, noise is inevitably generated, especially when the fluid impacts the pipeline. This mainly occurs at pipe bends, so sound insulation at pipe bends is particularly important. In the prior art, such as the Chinese utility model patent with application number "201921840325.5" entitled "Sound Insulation Cover for Pipeline Bends", a frame-type sound insulation cover is disclosed. Although it can play a role in sound insulation, this sound insulation cover is a one-piece design with a fixed opening. Therefore, it can only be applied to pipelines with a fixed opening diameter. In addition, both the pipeline bend and the sound insulation cover have a certain degree of curvature, and the one-piece sound insulation cover is very inconvenient to install. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a spliced ​​pipe elbow silencer cover with good sound insulation and easy use.

[0004] This utility model discloses a splicing pipe elbow silencer cover, which is installed on the outside of the pipe elbow. The silencer cover includes a first silencer component and a second silencer component symmetrically installed along the central symmetrical plane of the pipe elbow. The first silencer component and the second silencer component together form the silencer cover. The first silencer component includes a shell and a first sealing plate and a second sealing plate disposed at both ends of the shell. The first sealing plate and the second sealing plate form a sound-absorbing cavity on the inner side of the shell. A sound-absorbing component is movably connected to the sound-absorbing cavity through a connecting component. The sound-absorbing material is used to fill the space between the sound-absorbing component and the shell in the sound-absorbing cavity.

[0005] In one or more embodiments of this utility model, a positioning post is provided on the side of the first silencing component that is close to the second silencing component, and a positioning groove corresponding to the positioning post is provided on the second silencing component.

[0006] In one or more embodiments of this utility model, the two ends of the first and second silencing components are connected by a fixed flange.

[0007] In one or more embodiments of the present invention, the noise reduction assembly includes an inner plate and an outer plate that are similar in shape to a pipe elbow, and a noise reduction layer is provided between the inner plate and the outer plate. The noise reduction layer is a noise reduction foam board, and the inner plate and the outer plate are noise reduction rubber boards.

[0008] In one or more embodiments of this utility model, a ball groove is provided on the inner sidewall of the housing, one end of the connecting component is hinged to the outer side plate, and the other end of the connecting component is hinged to the ball groove by ball bearings.

[0009] In one or more embodiments of this utility model, the connecting assembly includes an outer cover fixedly connected between the outer side plate and the inner side wall of the outer shell. A hollow fixing rod is provided inside the outer cover. One end of the fixing rod is hinged to a connecting plate through a hinge ring. The connecting plate is fixedly installed on the outer side of the outer side plate. A spring and a movable rod are provided inside the fixing rod. One end of the movable rod is connected to the spring. A guide groove is provided between the movable rod and the fixing rod. The movable rod is slidably disposed in the guide groove. A through hole is provided at the end of the fixing rod. A telescopic rod is provided at the other end of the movable rod. A ball is provided at the end of the telescopic rod. The ball is slidably disposed in a ball groove.

[0010] In one or more embodiments of this utility model, the connecting plate is an arc-shaped rubber plate, which is fixedly connected to the outside of the outer plate.

[0011] In one or more embodiments of this utility model, the first sealing plate and the second sealing plate are annular rubber plates, the outer diameter of the first sealing plate and the second sealing plate is the inner diameter of the outer shell, and the inner diameter of the first sealing plate and the second sealing plate is the outer diameter of the bent pipe structure.

[0012] The beneficial effects of this utility model are: This utility model provides a soundproof cover by setting a detachable first soundproof cover and a second soundproof cover, and the first soundproof cover and the second soundproof cover are connected by positioning columns and positioning grooves and fixed by flanges. This spliced ​​soundproof cover is easier to install and use.

[0013] In this invention, sound-absorbing material can be filled on the outside of the sound-absorbing component inside the sound-absorbing cavity of the sound-absorbing cover. Combined with the multi-layered sound-absorbing component, it has a better sound-absorbing effect.

[0014] In this invention, the silencing component and the outer shell are hinged together by a connecting component. The silencing component includes two silencing plates on both sides and a silencing layer disposed between the two silencing plates. The silencing layer is a silencing material with a certain degree of elasticity, such as sponge. Therefore, when the first silencing cover and the second silencing cover are installed, the interior of the silencing component used to wrap the pipe bend is actually elastic, which can be flexibly applied to pipe bends of various diameters, and its application range is wider. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the spliced ​​pipe elbow silencer cover in one embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first silencer cover in one embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the second silencer in one embodiment of the present invention;

[0018] Figure 4 This is a side view of the first sound-absorbing cover in one embodiment of the present invention;

[0019] Figure 5 This is a cross-sectional view of the connecting component in one embodiment of the present invention.

[0020] In the figure: First silencer 100, Second silencer 200, Positioning groove 21, Fixed flange 300, Silencing assembly 11, Inner side plate 111, Silencing layer 112, Outer side plate 113, First sealing plate 12, Silencing cavity 13, Positioning post 14, Second sealing plate 15, Connecting assembly 16, Outer cover 161, Fixed rod 162, Hinge ring 163, Connecting plate 164, Movable rod 165, Guide groove 166, Telescopic rod 167, Ball bearing 168, Spring 169, Outer shell 17, Ball bearing groove 171. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "vertical", "horizontal", "top", "bottom", "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] It should be noted that, unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0024] As mentioned in the background art, the existing pipe elbow silencers can only be applied to pipes with a fixed inner diameter, and the curved silencers are very inconvenient to install.

[0025] For the above issues, please refer to the appendix. Figures 1-3 As shown, this utility model provides a spliced ​​pipe elbow silencer cover. The silencer cover is installed on the outside of the pipe elbow and includes: a first silencer 100 and a second silencer 200 symmetrically installed along the central symmetrical plane of the pipe elbow. The first silencer 100 and the second silencer 200 together form the silencer cover. The first silencer 100 includes a shell 17 and a first sealing plate 12 and a second sealing plate 15 disposed at both ends of the shell 17. A silencing cavity 13 is formed on the inner side of the shell 17 by the first sealing plate 12 and the second sealing plate 15. A silencing component 11 is movably connected to the silencing cavity 13 through a connecting assembly 16. The space between the silencing component 11 and the shell 17 in the silencing cavity 13 is used to fill silencing material. A positioning post 14 is provided on the side of the first silencer 100 that is close to the second silencer 200. A positioning groove 21 corresponding to the positioning post 14 is provided on the second silencer 200. The two ends of the first silencer 100 and the second silencer 200 are connected by a fixing flange 300.

[0026] In a further embodiment, see Appendix Figure 4 As shown, the noise reduction assembly 11 includes an inner plate 111 and an outer plate 113, which are similar in shape to a pipe elbow. A noise reduction layer 112 is provided between the inner plate 111 and the outer plate 113. The noise reduction layer 112 is a noise reduction foam board, and the inner plate 111 and the outer plate 113 are noise reduction rubber boards. A ball groove 171 is provided on the inner wall of the outer casing 17. One end of the connecting assembly 16 is hinged to the outer plate 113, and the other end of the connecting assembly 16 is hinged to the ball groove 171 through a ball 168.

[0027] In a further embodiment, see Appendix Figure 5As shown, the connecting assembly 16 includes an outer cover 161 fixedly connected between the outer side plate 113 and the inner wall of the outer cover 17. A hollow fixing rod 162 is provided inside the outer cover 161. One end of the fixing rod 162 is hinged to a connecting plate 164 via a hinge ring 163. The connecting plate 164 is fixedly installed on the outer side of the outer side plate 113. A spring 169 and a movable rod 165 are provided inside the fixing rod 162. One end of the movable rod 165 is connected to the spring 169. A guide groove 166 is provided between the movable rod 165 and the fixing rod 162, and the movable rod 165 is slidably disposed within the guide groove 166. A through hole is provided at the end of the fixing rod 162, and a telescopic rod 167 is provided at the other end of the movable rod 165. A ball bearing 168 is provided at the end of the telescopic rod 167, and the ball bearing 168 is slidably disposed within a ball bearing groove 171. In this embodiment, the connecting plate 164 is an arc-shaped rubber plate, which is fixedly connected to the outer side of the outer side plate 113. The first sealing plate 12 and the second sealing plate 15 are annular rubber plates. The outer diameter of the first sealing plate 12 and the second sealing plate 15 is the inner diameter of the outer shell 17, and the inner diameter of the first sealing plate 12 and the second sealing plate 15 is the outer diameter of the bent pipe structure. In this embodiment, by setting multiple sets of connecting components 16, the silencing component 11 is pressed against the pipe bend through the connecting components 16. Even if the size of the pipe bend changes within a certain range, the connecting components 16 can ensure that the silencing component 11 is tightly attached to the outside of the pipe bend, thereby ensuring the silencing effect. According to the diameter of the pipe bend, the first sealing plate 12 and the second sealing plate 15 with the corresponding diameter are selected to ensure the normal use of the silencer cover.

[0028] Workflow: In actual operation, when this device is used, the first silencer 100 and the second silencer 200 are first symmetrically installed along the central symmetrical plane of the pipe bend. The precise alignment of the two is achieved by the cooperation of the positioning column 14 and the positioning groove 21. Then, the ends of the two are connected by the fixing flange 300 to form a complete silencer structure. At this time, the sound-absorbing material in the silencer cavity 13 absorbs the sound wave energy generated at the pipe bend. At the same time, the silencer assembly 11 is movably connected to the inner side of the outer shell 17 through the connecting assembly 16. When the pipe vibrates or the airflow impacts, the silencer assembly achieves adaptive displacement through the sliding of the ball 168 in the ball groove 171 and the extension and retraction adjustment of the spring 169, thereby maintaining the contact stability with the inner side of the outer shell 17. The sound-absorbing layer 112 formed by the inner side plate 111 and the outer side plate 113 further attenuates the sound waves through the combination structure of the sound-absorbing foam board and the sound-absorbing rubber board. The first sealing plate 12 and the second sealing plate 15, as annular rubber boards, are tightly attached to the outer wall of the pipe bend to form a closed sound-absorbing space to block the noise from spreading outward.

[0029] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A spliced ​​pipe elbow silencer cover, wherein the silencer cover is installed on the outside of the pipe elbow, characterized in that, The silencer includes a first silencer (100) and a second silencer (200) symmetrically installed along the central symmetrical plane of the pipe bend. The first silencer (100) and the second silencer (200) together form a silencer. The first silencer (100) includes a shell (17) and a first sealing plate (12) and a second sealing plate (15) disposed at both ends of the shell (17). The first sealing plate (12) and the second sealing plate (15) form a silencing cavity (13) on the inner side of the shell (17). A silencing component (11) is movably connected to the silencing cavity (13) through a connecting component (16). The silencing cavity (13) is used to fill the space between the silencing component (11) and the shell (17) with silencing material.

2. The spliced ​​pipe elbow silencer according to claim 1, characterized in that, The first silencing component (100) has a positioning post (14) on the side close to the second silencing component (200), and the second silencing component (200) has a positioning groove (21) corresponding to the positioning post (14).

3. The spliced ​​pipe elbow silencer according to claim 1, characterized in that, The two ends of the first silencer (100) and the second silencer (200) are connected by a fixed flange (300).

4. The spliced ​​pipe elbow silencer according to claim 1, characterized in that, The noise reduction assembly (11) includes an inner plate (111) and an outer plate (113) similar in shape to a pipe elbow. A noise reduction layer (112) is provided between the inner plate (111) and the outer plate (113). The noise reduction layer (112) is a noise reduction foam board, and the inner plate (111) and the outer plate (113) are noise reduction rubber boards.

5. A spliced ​​pipe elbow silencer according to claim 4, characterized in that, The inner wall of the outer shell (17) is provided with a ball groove (171), one end of the connecting component (16) is hinged to the outer plate (113), and the other end of the connecting component (16) is hinged to the ball groove (171) through a ball (168).

6. A spliced ​​pipe elbow silencer according to claim 5, characterized in that, The connecting assembly (16) includes an outer cover (161) fixedly connected between the outer side plate (113) and the inner side wall of the outer shell (17). The outer cover (161) contains a hollow fixing rod (162). One end of the fixing rod (162) is hinged to a connecting plate (164) via a hinge ring (163). The connecting plate (164) is fixedly installed on the outer side of the outer side plate (113). The fixing rod (162) contains a spring (169) and a movable rod (165). One end of the movable rod (165) is connected to the spring (169). A guide groove (166) is provided between the movable rod (165) and the fixed rod (162). The movable rod (165) is slidably disposed in the guide groove (166). The end of the fixed rod (162) is provided with a through hole. The other end of the movable rod (165) is provided with a telescopic rod (167). The end of the telescopic rod (167) is provided with a ball (168). The ball (168) is slidably disposed in the ball groove (171).

7. A spliced ​​pipe elbow silencer according to claim 6, characterized in that, The connecting plate (164) is an arc-shaped rubber plate, which is fixedly connected to the outside of the outer plate (113).

8. A spliced ​​pipe elbow silencer according to claim 1, characterized in that, The first sealing plate (12) and the second sealing plate (15) are annular rubber plates. The outer diameter of the first sealing plate (12) and the second sealing plate (15) is the inner diameter of the outer shell (17). The inner diameter of the first sealing plate (12) and the second sealing plate (15) is the outer diameter of the bent pipe structure.

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