Air pipe silencer

Abstract

The utility model provides an air pipe silencer, which relates to the field of air pipe silencers and comprises a silencing mechanism, two ends of the silencing mechanism are fixedly connected with one side of a sealing mechanism, and the inner wall of the silencing mechanism is movably connected with the outer wall of a dismounting component. When the device is installed at one end of the air pipe, the installation frame is aligned with the installation position of the air pipe, then the installation position of the air pipe extrudes the stable rubber block, the stable rubber block is clamped at the installation position of the air pipe, the air pipe and the installation frame are preliminarily limited, the installation frame is installed through bolts, and meanwhile the fixing plate and the sealing ring enter the inner wall of the air pipe. The top end of the sealing ring makes contact with the inner wall of the air pipe, then a gap at the installation position is sealed, preliminary positioning during installation is facilitated, the installation stability is improved, meanwhile, the sealing effect after installation is improved, the air leakage phenomenon is avoided, the metal perforated plate body can be taken down and cleaned conveniently, and the service life of the metal perforated plate body is prolonged. And operation of workers is facilitated through the rotating block.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wind pipe silencer technical field especially, relates to a wind pipe silencer. BACKGROUND

[0002] The wind pipe silencer is a device for reducing the airflow noise in the ventilation pipeline, which mainly absorbs and attenuates the noise generated when the airflow passes through by adopting sound-absorbing materials, setting a silencer cavity and other ways, so as to achieve the purpose of reducing noise.

[0003] In the prior art, the wind pipe silencer is connected and fixed by bolts during installation, and after the wind pipe and the branch pipe silencer are installed, the air tightness is poor, and air leakage is prone to occur. Secondly, since part of the dust is mixed in the airflow circulating in the wind pipe silencer, the dust is easy to adhere to the metal perforated plate inside the silencer. Since the metal perforated plate is mostly welded to the inner wall of the silencer, it is difficult to disassemble and clean the dust on the metal perforated plate, and the dust easily affects the silencing effect. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a wind pipe silencer to solve the problems of poor air tightness after the wind pipe and the branch pipe silencer are installed, easy air leakage, the metal perforated plate mostly welded to the inner wall of the silencer, difficult to disassemble, and difficult to clean the dust on the metal perforated plate, and the dust easily affecting the silencing effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: it comprises: a sound-absorbing mechanism, the sound-absorbing mechanism comprises a wind pipe sound-absorbing frame, a mounting thread groove and a sound-absorbing plate, both ends of the sound-absorbing mechanism are fixedly connected with one side of a sealing mechanism, the sealing mechanism comprises a mounting frame, a mounting hole, a preliminary limiting frame, a stable rubber block, a fixed plate and a sealing ring, the inner wall of the sound-absorbing mechanism is movably connected with the outer wall of a disassembly assembly, and the disassembly assembly comprises a metal perforated plate body, an internal thread extension block, a threaded rod and a rotating block.

[0006] As a preferred embodiment, a hollow sound-absorbing groove is formed in the inside of the wind pipe sound-absorbing frame, mounting thread grooves are formed in the inner walls of both sides of the hollow sound-absorbing groove, and the inner wall of the hollow sound-absorbing groove is fixedly connected with the outer wall of the sound-absorbing plate.

[0007] As a preferred embodiment, one side of the mounting frame is fixedly connected with both ends of the wind pipe sound-absorbing frame, and a mounting hole for providing bolt mounting is formed in the inside of the mounting frame.

[0008] As a preferred embodiment, the outer wall of the mounting frame is fixedly connected with one end of the preliminary limiting frame, and the other end of the preliminary limiting frame is fixedly connected with one end of the stable rubber block.

[0009] As a preferred implementation form, the inner wall of the mounting frame is fixedly connected with the outer wall of the fixing plate, and the outer wall of the fixing plate is fixedly connected with the inner wall of the sealing ring.

[0010] As a preferred implementation form, the inner wall of the air pipe silencer frame is movably connected with the outer wall of the metal perforated plate body, and both ends of the metal perforated plate body are fixedly connected with one side of the internally-threaded extension block.

[0011] As a preferred implementation form, the internally-threaded extension block is internally provided with an internally-threaded groove, and the inner wall of the internally-threaded groove is threadedly connected with the outer wall of the threaded rod.

[0012] As a preferred implementation form, the outer wall of the threaded rod is threadedly connected with the inner wall of the mounting threaded groove, and one end of the threaded rod located at the inner side is fixedly connected with one end of the rotating block, and the outer wall of the rotating block is provided with a friction groove.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1、The utility model discloses a mounting frame, a fixing plate, a sealing ring, a stable rubber block, a bolt, a threaded rod, a mounting threaded groove, a rotating block and a friction groove are arranged, the mounting frame is fixedly connected with the fixing plate, the fixing plate is fixedly connected with the sealing ring, the stable rubber block is arranged on one side of the mounting frame, the bolt is arranged on the stable rubber block, the threaded rod is arranged on one side of the fixing plate, the mounting threaded groove is arranged on the inner wall of the air pipe, the rotating block is arranged on one side of the threaded rod, and the friction groove is arranged on the outer wall of the rotating block.

[0015] 2、The utility model discloses a metal perforated plate body, a wind pipe silencer frame, a threaded rod, a mounting threaded groove, a rotating block and a friction groove are arranged, the wind pipe silencer frame is movably connected with the metal perforated plate body, the threaded rod is arranged on one side of the wind pipe silencer frame, the mounting threaded groove is arranged on the inner wall of the wind pipe silencer frame, the rotating block is arranged on one side of the threaded rod, and the friction groove is arranged on the outer wall of the rotating block. ACCURATE DRAWINGS

[0016] Figure 1 A structure schematic view of the wind pipe silencer is provided for the utility model.

[0017] Figure 2 A closed mechanism sectional view of the wind pipe silencer is provided for the utility model.

[0018] Figure 3 A wind pipe silencer frame sectional view of the wind pipe silencer is provided for the utility model.

[0019] Figure 4The utility model provides a kind of wind pipe silencer's dismounting assembly schematic view.

[0020] Legend:

[0021] 1, sound-absorbing mechanism;101, wind pipe sound-absorbing frame;102, installation thread groove;103, sound-absorbing board;2, sealing mechanism;201, mounting frame;202, mounting hole;203, preliminary limiting frame;204, stable rubber block;205, fixed plate;206, sealing ring;3, dismounting assembly;301, metal perforated plate body;302, internal thread extension block;303, threaded rod;304, rotating block. Specific implementation

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of wind pipe silencer, comprising: sound-absorbing mechanism 1, sound-absorbing mechanism 1 includes wind pipe sound-absorbing frame 101, installation thread groove 102 and sound-absorbing board 103, the two ends of sound-absorbing mechanism 1 are fixedly connected with the side of sealing mechanism 2, sealing mechanism 2 includes mounting frame 201, mounting hole 202, preliminary limiting frame 203, stable rubber block 204, fixed plate 205 and sealing ring 206, the inner wall of sound-absorbing mechanism 1 is movably connected with the outer wall of dismounting assembly 3, dismounting assembly 3 includes metal perforated plate body 301, internal thread extension block 302, threaded rod 303 and rotating block 304.

[0024] In an embodiment, the inside of wind pipe sound-absorbing frame 101 is provided with hollow sound-absorbing groove, and the inside wall of hollow sound-absorbing groove is provided with installation thread groove 102 on both sides, the inner wall of hollow sound-absorbing groove is fixedly connected with the outer wall of sound-absorbing board 103.

[0025] Specifically: through sound-absorbing board 103, the sound-absorbing effect of the device is ensured.

[0026] In an embodiment, the side of mounting frame 201 is fixedly connected with the two ends of wind pipe sound-absorbing frame 101 respectively, and the inside of mounting frame 201 is provided with mounting hole 202 for bolt installation.

[0027] Specifically: through mounting hole 202, the installation of the device is facilitated, and through mounting frame 201, the stability of installation is ensured.

[0028] In one embodiment, the outer wall of the mounting frame 201 is fixedly connected with one end of the preliminary limiting frame 203, and the other end of the preliminary limiting frame 203 is fixedly connected with one end of the stable rubber block 204.

[0029] Specifically, the stable rubber block 204 is clamped at the installation position of the air pipe, so that the air pipe and the mounting frame 201 are preliminarily limited.

[0030] In one embodiment, the inner wall of the mounting frame 201 is fixedly connected with the outer wall of the fixed plate 205, and the outer wall of the fixed plate 205 is fixedly connected with the inner wall of the sealing ring 206.

[0031] Specifically, the top end of the sealing ring 206 is in contact with the inner wall of the air pipe, which increases the sealing effect after installation and avoids the phenomenon of air leakage.

[0032] In one embodiment, the inner wall of the air pipe silencer 101 is movably connected with the outer wall of the metal perforated plate body 301, and both ends of the metal perforated plate body 301 are fixedly connected with one side of the internally-threaded extension block 302.

[0033] Specifically, the internally-threaded extension block 302 facilitates the installation and disassembly of the metal perforated plate body 301.

[0034] In one embodiment, the internally-threaded extension block 302 is internally provided with an internally-threaded groove, and the inner wall of the internally-threaded groove is threadedly connected with the outer wall of the threaded rod 303.

[0035] Specifically, the hand-held rotating block 304 is rotated, so that the threaded rod 303 is removed from the inside of the mounting internally-threaded groove 102 and the internally-threaded extension block 302.

[0036] In one embodiment, the outer wall of the threaded rod 303 is threadedly connected with the inner wall of the mounting internally-threaded groove 102, and one end of the threaded rod 303 located at the inner side is fixedly connected with one end of the rotating block 304, and the outer wall of the rotating block 304 is provided with a friction groove.

[0037] Specifically, the friction groove facilitates the rotation of the rotating block 304 by the worker, which facilitates the operation of the worker.

[0038] Working principle: when the device is installed at one end of the air pipe, the mounting frame 201 is aligned with the air pipe installation place, and then the air pipe installation place extrudes the stable rubber block 204, so that the stable rubber block 204 is clamped at the air pipe installation place, thereby preliminarily limiting the air pipe and the mounting frame 201, the mounting frame 201 is installed by using the bolt, and the fixed plate 205 and the sealing ring 206 enter the inner wall of the air pipe, so that the top end of the sealing ring 206 is in contact with the inner wall of the air pipe, thereby sealing the gap of the installation place, when the metal perforated plate body 301 is taken out for cleaning, the air pipe silencer 101 is disassembled, the rotating block 304 is held and rotated, thereby the threaded rod 303 is taken out from the inside of the mounting threaded groove 102 and the internal threaded extension block 302, so that the metal perforated plate body 301 is not limited, and the metal perforated plate body 301 is taken out for cleaning.

[0039] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application without departing from the technical scheme of the present application still belongs to the protection scope of the present application.

Claims

1. A duct muffler, characterized in that: include: A silencer mechanism (1) comprises an air duct silencer frame (101), a mounting thread groove (102) and a sound absorbing plate (103); both ends of the silencer mechanism (1) are fixedly connected to one side of a sealing mechanism (2); the sealing mechanism (2) comprises a mounting frame (201), a mounting hole (202), a preliminary limiting frame (203), a stabilizing rubber block (204), a fixing plate (205) and a sealing ring (206); the inner wall of the silencer mechanism (1) is movably connected to the outer wall of a disassembly component (3); the disassembly component (3) comprises a metal perforated plate body (301), an internal thread extension block (302), a threaded rod (303) and a rotating block (304).

2. The air duct muffler according to claim 1, characterized in that: A hollow silencer groove is provided inside the air duct silencer frame (101), and mounting thread grooves (102) are provided on both inner walls of the hollow silencer groove. The inner wall of the hollow silencer groove is fixedly connected to the outer wall of the sound absorbing board (103).

3. The air duct muffler according to claim 1, characterized in that: One side of the mounting frame (201) is fixedly connected to both ends of the air duct silencer frame (101), and a mounting hole (202) for bolt installation is provided inside the mounting frame (201).

4. The air duct muffler according to claim 3, characterized in that: The outer wall of the mounting frame (201) is fixedly connected to one end of the preliminary limiting frame (203), and the other end of the preliminary limiting frame (203) is fixedly connected to one end of the stabilizing rubber block (204).

5. The air duct muffler according to claim 4, characterized in that: The inner wall of the mounting frame (201) is fixedly connected to the outer wall of the fixing plate (205), and the outer wall of the fixing plate (205) is fixedly connected to the inner wall of the sealing ring (206).

6. The air duct muffler according to claim 1, characterized in that: The inner wall of the air duct silencer frame (101) is movably connected to the outer wall of the metal perforated plate body (301), and both ends of the metal perforated plate body (301) are fixedly connected to one side of the internal thread extension block (302).

7. The air duct muffler according to claim 6, characterized in that: An internal thread groove is provided inside the internal thread extension block (302), and the inner wall of the internal thread groove is threadedly connected to the outer wall of the threaded rod (303).

8. The air duct muffler according to claim 7, characterized in that: The outer wall of the threaded rod (303) is threadedly connected to the inner wall of the mounting thread groove (102), and the inner end of the threaded rod (303) is fixedly connected to one end of the rotating block (304), and the outer wall of the rotating block (304) is provided with a friction groove.

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