Fan inlet silencer convenient to install

Through its multi-layered noise reduction structure and convenient installation design, it solves the problems of inconvenient installation and difficult replacement of fan silencers, realizes the functions of easy installation, disassembly and maintenance, improves the noise reduction effect and reduces the replacement cost, and has real-time monitoring and dust prevention capabilities.

CN224064589UActive Publication Date: 2026-03-31HENAN CHENFAN ELECTROMECHANICAL ENVIRONMENTAL PROTECTION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing fan silencers are inconvenient to install, and their internal noise-generating structures are difficult and costly to replace when they age.

Method used

A multi-layer noise reduction structure was designed, comprising a silencer body, a sound insulation layer, a noise reduction sleeve, a first sound insulation sleeve, a second sound insulation sleeve, and splicing blocks. It is equipped with a noise sensor and a terminal alarm module. The splicing slots and blocks enable convenient installation. The internal and external threaded grooves of the connecting pipe facilitate rotational installation. The reinforcing plate is connected to the fan, and the dustproof plate is removable for cleaning.

Benefits of technology

It features easy installation, disassembly, and maintenance, improves noise reduction, reduces replacement costs, has real-time noise monitoring and remote alarm functions, and offers significant dustproof performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224064589U_ABST
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Abstract

The utility model relates to the field of silencers, and discloses a fan inlet silencer convenient to install, which comprises a silencer main body, the right side of the silencer main body is fixedly connected with a connecting pipe, the top end and the bottom end of the connecting pipe are provided with reinforcing plates, the reinforcing plates are movably hinged with installing plates, and the installing plates are fixedly connected with the silencer main body. A sound insulation layer is fixedly connected into the silencer body, a noise reduction sleeve is installed on the inner side of the sound insulation layer, and a first sound insulation sleeve is installed on the inner side of the noise reduction sleeve. According to the fan inlet silencer convenient to install, the noise reduction strength is improved through the multi-layer noise reduction and sound insulation structure, in the using process, the noise sensor can monitor noise in real time, once the noise exceeds the value, the terminal alarm module can give an alarm remotely, workers are reminded to replace and maintain the structure in the silencer body, and the noise reduction effect is improved. During maintenance and disassembly, the dustproof plate needs to be taken down firstly, then the sound insulation layer, the noise reduction sleeve, the first sound insulation sleeve and the second sound insulation sleeve can be pulled outwards one by one, and the problem that disassembly and replacement are inconvenient is solved.
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Description

Technical Field

[0001] This utility model relates to the field of silencer technology, specifically a fan inlet silencer that is easy to install. Background Technology

[0002] A fan is a machine that uses input mechanical energy to increase gas pressure and discharge gas. It is a type of driven fluid machinery. Fan silencers are mainly used to reduce the aerodynamic noise generated when the fan is running. Their core principle is to attenuate sound wave energy through sound absorption, reflection, interference and other methods.

[0003] Currently, the installation structure of common fan silencers is relatively simple and inconvenient to install. Moreover, the internal noise reduction and sound insulation structure of most fan silencers cannot be disassembled and removed. Once the internal noise reduction structure of the fan silencer ages, it needs to be replaced extensively, which is very inconvenient and costly.

[0004] There is an urgent need for a fan inlet silencer that is easy to install to address the technical deficiencies mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a fan inlet silencer that is easy to install, so as to solve the problem of inconvenience in disassembly and replacement mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fan inlet silencer that is easy to install, comprising a silencer body, a connecting pipe fixedly connected to the right side of the silencer body, reinforcing plates provided at the top and bottom of the connecting pipe, an mounting plate movably hinged to the reinforcing plate, a sound insulation layer fixedly connected inside the silencer body, a noise reduction sleeve installed on the inner side of the sound insulation layer, a first sound insulation sleeve installed on the inner side of the noise reduction sleeve, a second sound insulation sleeve installed on the inner side of the first sound insulation sleeve, a dustproof plate installed on the left side of the silencer body, a reserved opening provided inside the dustproof plate, a filter screen installed inside the reserved opening, a fixed shell installed at the top of the silencer body, a noise sensor and a terminal alarm module respectively installed inside the fixed shell, splicing blocks fixedly connected to the outside of the noise reduction sleeve, the first sound insulation sleeve and the second sound insulation sleeve, and splicing slots provided on the inner side of the sound insulation layer, the noise reduction sleeve and the first sound insulation sleeve.

[0007] As a further technical solution of this utility model, the splicing slot is U-shaped, and the splicing block is embedded inside the splicing slot.

[0008] As a further technical solution of this utility model, the splicing blocks are arranged in a ring outside the noise reduction sleeve, the first sound insulation sleeve and the second sound insulation sleeve.

[0009] As a further technical solution of this utility model, the interior of the fixed shell includes a power module and a circuit board, and the noise sensor and the terminal alarm module are both electrically connected to the circuit board.

[0010] As a further technical solution of this utility model, the top and bottom of the dustproof plate are fixedly connected with connecting blocks, and the top and bottom of the muffler body are fixedly connected with connecting seats, and connecting bolts are provided on the connecting seats.

[0011] As a further technical solution of this utility model, the connecting block is embedded inside the connecting seat, and the connecting bolt passes through the connecting seat and is embedded inside the connecting block.

[0012] As a further technical solution of this utility model, the connecting pipe is provided with an internal thread inside and an external thread outside.

[0013] As a further technical solution of this utility model, the reinforcing plate is provided in two sets, and the mounting plate is provided with mounting bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the easy-to-install fan inlet silencer not only realizes the functions of easy detection and replacement, easy installation, but also easy dust prevention.

[0015] (1) By setting up a muffler body, sound insulation layer, noise reduction sleeve, first sound insulation sleeve, second sound insulation sleeve, splicing slot and splicing block, the muffler body can achieve the sound reduction effect through the internal sound insulation layer, noise reduction sleeve, first sound insulation sleeve and second sound insulation sleeve. The multi-layer noise reduction and sound insulation structure improves the sound reduction strength. During use, the noise sensor can monitor the noise in real time. Once the noise exceeds the value, the terminal alarm module can remotely alarm and remind the staff to replace and maintain the internal structure of the muffler body. When maintaining and disassembling, the dust cover needs to be removed first, and then the sound insulation layer, noise reduction sleeve, first sound insulation sleeve and second sound insulation sleeve can be pulled out one by one. This structure realizes the functions of easy detection and disassembly and replacement.

[0016] (2) The structure is equipped with a silencer body, a reinforcing plate, a connecting pipe, a mounting plate and mounting bolts. The connecting pipe has threaded grooves inside and outside. When the connecting pipe is connected to the fan inlet, it can be rotated and installed as needed. The installation structure is simple and quick. The reinforcing plates at the top and bottom of the connecting pipe can achieve the effect of reinforcing connection. During installation, the mounting plate and mounting bolts on the reinforcing plate are connected to the fan. This structure realizes the function of easy and flexible installation.

[0017] (3) By setting a connecting seat, dustproof plate, filter screen, reserved opening, connecting block and connecting bolt, the reserved opening inside the dustproof plate facilitates air circulation, the filter screen in the reserved opening can filter the dust inside the circulating air, the dustproof plate can be disassembled and removed during cleaning, the connecting bolt is unscrewed from the connecting seat during disassembly, and then the dustproof plate can be removed for cleaning. This structure realizes the function of easy dust prevention and cleaning. Attached Figure Description

[0018] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0019] Figure 2 This is a side view sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the present invention.

[0021] Figure 4 This is a side view of the dustproof panel structure of this utility model.

[0022] In the diagram: 1. Silencer body; 2. Reinforcing plate; 3. Connecting pipe; 4. Mounting plate; 5. Sound insulation layer; 6. Fixing shell; 7. Terminal alarm module; 8. Noise sensor; 9. Noise reduction sleeve; 10. Connecting seat; 11. Dustproof plate; 12. Reserved opening; 13. Filter screen; 14. First sound insulation sleeve; 15. Second sound insulation sleeve; 16. Connecting clip; 17. Connecting bolt; 18. Mounting bolt; 19. Splicing slot; 20. Splicing clip. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides an embodiment of a fan inlet silencer that is easy to install, comprising a silencer body 1, a connecting pipe 3 fixedly connected to the right side of the silencer body 1, a reinforcing plate 2 provided at the top and bottom of the connecting pipe 3, an mounting plate 4 movably hinged to the reinforcing plate 2, a sound insulation layer 5 fixedly connected inside the silencer body 1, a noise reduction sleeve 9 installed on the inner side of the sound insulation layer 5, a first sound insulation sleeve 14 installed on the inner side of the noise reduction sleeve 9, and a second sound insulation sleeve 15 installed on the inner side of the first sound insulation sleeve 14. A dustproof plate 11 is installed on the left side of the muffler body 1. A reserved opening 12 is provided inside the dustproof plate 11. A filter screen 13 is installed inside the reserved opening 12. A fixed shell 6 is installed on the top of the muffler body 1. A noise sensor 8 and a terminal alarm module 7 are installed inside the fixed shell 6. Splicing blocks 20 are fixedly connected to the outside of the noise reduction sleeve 9, the first sound insulation sleeve 14 and the second sound insulation sleeve 15. Splicing slots 19 are provided on the inside of the sound insulation layer 5, the noise reduction sleeve 9 and the first sound insulation sleeve 14.

[0025] The splicing slot 19 is U-shaped, and the splicing block 20 is embedded inside the splicing slot 19. The splicing block 20 is distributed in a ring outside the noise reduction sleeve 9, the first sound insulation sleeve 14 and the second sound insulation sleeve 15. The interior of the fixing shell 6 includes a power module and a circuit board. The noise sensor 8 and the terminal alarm module 7 are both electrically connected to the circuit board.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the multi-layer noise reduction and sound insulation structure improves the noise reduction strength. During use, the noise sensor 8 can monitor the noise in real time. Once the noise exceeds the value, the terminal alarm module 7 can remotely alarm, reminding the staff to replace and maintain the internal structure of the silencer body 1. When disassembling for maintenance, the dust cover 11 needs to be removed first, and then the sound insulation layer 5, the noise reduction sleeve 9, the first sound insulation sleeve 14 and the second sound insulation sleeve 15 can be pulled outward one by one.

[0027] The top and bottom of the dustproof plate 11 are fixedly connected with connecting blocks 16, and the top and bottom of the muffler body 1 are fixedly connected with connecting seats 10. Connecting bolts 17 are provided on the connecting seats 10. The connecting blocks 16 are embedded inside the connecting seats 10, and the connecting bolts 17 pass through the connecting seats 10 and are embedded inside the connecting blocks 16.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, threaded grooves are provided inside and outside the connecting pipe 3. When connecting the connecting pipe 3 to the fan inlet, it can be rotated and installed as needed. The installation structure is simple and quick. The reinforcing plates 2 at the top and bottom of the connecting pipe 3 can achieve the effect of reinforcing the connection. During installation, the mounting plate 4 and mounting bolts 18 on the reinforcing plate 2 can be connected to the fan.

[0029] The connecting pipe 3 has an internal thread inside and an external thread outside. The reinforcing plate 2 has two sets, and the mounting plate 4 has mounting bolts 18.

[0030] Specifically, such as Figure 1 and Figure 3 As shown, the reserved opening 12 inside the dustproof plate 11 facilitates air circulation. The filter screen 13 in the reserved opening 12 can filter the dust inside the circulating air. When cleaning, the dustproof plate 11 can be disassembled and removed. When disassembling, unscrew the connecting bolt 17 from the connecting seat 10, and then the dustproof plate 11 can be removed for cleaning.

[0031] Working Principle: In use, the multi-layered noise reduction and sound insulation structure inside the muffler body 1 enhances the noise reduction intensity. During use, the noise sensor 8 monitors noise in real time. Once the noise level exceeds the limit, the terminal alarm module 7 remotely alarms, reminding staff to replace and maintain the internal structure of the muffler body 1. For maintenance and disassembly, the dust cover 11 must first be removed. Then, the sound insulation layer 5, noise reduction sleeve 9, first sound insulation sleeve 14, and second sound insulation sleeve 15 can be pulled outwards one by one. The reserved opening 12 inside the dust cover 11 facilitates air circulation. The filter screen 13 in the reserved port 12 can filter the dust inside the circulating air. When cleaning, the dustproof plate 11 can be removed. When removing, simply unscrew the connecting bolt 17 from the connecting seat 10. The connecting pipe 3 has threaded grooves inside and outside. When connecting the connecting pipe 3 to the fan inlet, it can be rotated and installed as needed. The installation structure is simple and quick. The reinforcing plates 2 at the top and bottom of the connecting pipe 3 can achieve the effect of reinforcing the connection. When installing, simply connect the mounting plate 4 and mounting bolt 18 on the reinforcing plate 2 to the fan. This structure realizes the function of easy and flexible installation.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fan inlet silencer for easy installation comprising a silencer body (1) characterised in that: The right side of the silencer body (1) is fixedly connected with a connecting pipe (3), the top end and the bottom end of the connecting pipe (3) are provided with reinforcing plates (2), the reinforcing plates (2) are movably hinged with mounting plates (4), the inside of the silencer body (1) is fixedly connected with a sound insulation layer (5), the inner side of the sound insulation layer (5) is mounted with a noise reduction sleeve (9), the inner side of the noise reduction sleeve (9) is mounted with a first sound insulation sleeve (14), the inner side of the first sound insulation sleeve (14) is mounted with a second sound insulation sleeve (15), the left side of the silencer body (1) is mounted with a dustproof plate (11), the inside of the dustproof plate (11) is provided with a reserved port (12), the inside of the reserved port (12) is mounted with a filter screen (13), the top end of the silencer body (1) is mounted with a fixed shell (6), the inside of the fixed shell (6) is mounted with a noise sensor (8) and a terminal alarm module (7) respectively, the outside of the noise reduction sleeve (9), the first sound insulation sleeve (14) and the second sound insulation sleeve (15) is fixedly connected with splicing clamping blocks (20), the inner side of the sound insulation layer (5), the noise reduction sleeve (9) and the first sound insulation sleeve (14) is provided with splicing clamping grooves (19).

2. A conveniently mountable fan inlet silencer according to claim 1, characterized in that: The splicing clamping groove (19) is concave, and the splicing clamping block (20) is embedded in the inside of the splicing clamping groove (19).

3. A conveniently mountable fan inlet silencer according to claim 1, characterized in that: The splicing clamping block (20) is annularly distributed outside the noise reduction sleeve (9), the first sound insulation sleeve (14) and the second sound insulation sleeve (15).

4. A conveniently mountable fan inlet silencer according to claim 1, characterized in that: The inside of the fixed shell (6) includes a power module and a circuit board, and the noise sensor (8) and the terminal alarm module (7) are electrically connected with the circuit board.

5. A conveniently mountable fan inlet silencer according to claim 1, characterized in that: The top end and the bottom end of the dustproof plate (11) are fixedly connected with connecting clamping blocks (16), the top end and the bottom end of the silencer body (1) are fixedly connected with connecting seats (10), and the connecting seats (10) are provided with connecting bolts (17).

6. A conveniently installed fan inlet silencer according to claim 5, characterised in that: The connecting clamping block (16) is embedded in the inside of the connecting seat (10), and the connecting bolt (17) penetrates through the connecting seat (10) and is embedded in the inside of the connecting clamping block (16).

7. A conveniently mountable fan inlet silencer according to claim 1, characterized in that: The inside of the connecting pipe (3) is provided with an internal thread, and the outside of the connecting pipe (3) is provided with an external thread.

8. A conveniently installed fan inlet silencer according to claim 1, characterized in that: The reinforcing plate (2) is provided with two groups, and the mounting plate (4) is provided with mounting bolts (18).