Novel municipal tunnel ventilation device
By introducing multi-layer noise reduction mechanisms and modular design into the tunnel ventilation device, the noise problem of traditional tunnel ventilation systems has been solved, achieving low noise and convenient installation.
Patent Information
- Application Number
- CN202520395654.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Traditional tunnel ventilation systems, such as axial flow fans and jet fans, generate significant noise when operating at high speeds, affecting the tunnel environment and the quality of life for nearby residents.
It adopts a multi-layer noise reduction mechanism design, including a primary noise reduction mechanism, a connection mechanism, an installation mechanism, a filtration mechanism, and a secondary noise reduction mechanism. The modular design reduces the operating noise of the fan and facilitates installation and maintenance.
It effectively reduces the noise of the fan operation, improves the driving environment inside the tunnel, reduces the impact on surrounding residents, and the modular design simplifies the installation and maintenance process.
Smart Images

Figure CN223806364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of municipal tunnel ventilation devices, specifically, to a novel municipal tunnel ventilation device. Background Technology
[0002] As an important part of urban transportation, the air quality inside municipal tunnels is directly related to driving safety and passenger health. Traditional tunnel ventilation systems usually use axial flow fans or jet fans for ventilation. Although they can achieve basic air circulation, tunnel ventilation fans will generate a lot of noise when running at high speed, which will affect the environment inside the tunnel and the quality of life of surrounding residents.
[0003] In view of this, a new type of ventilation device for municipal tunnels is provided to overcome the above-mentioned defects. Utility Model Content
[0004] In view of the problems in the related technologies, this utility model proposes a new type of municipal tunnel ventilation device to overcome the above-mentioned technical problems existing in the existing related technologies.
[0005] Therefore, the specific technical solution adopted by this utility model is as follows:
[0006] A novel municipal tunnel ventilation device is applied to the ventilator body. The outer wall of the ventilator body is symmetrically provided with a primary noise reduction mechanism. The primary noise reduction mechanisms are connected to each other through a connecting mechanism. A filter mechanism is connected to the right side of the primary noise reduction mechanism on the right side through an installation mechanism. The primary noise reduction mechanism and the top of the ventilator body are both provided with an installation rod. The inner wall of the ventilator body is provided with a secondary noise reduction mechanism.
[0007] Preferably, the primary noise reduction mechanism includes mounting rings and primary noise reduction pads. The mounting rings are symmetrically arranged on the outer wall of the ventilator body, and the mounting rings are connected to each other by a connecting mechanism. The inner wall of the mounting rings is provided with a primary noise reduction pad.
[0008] Preferably, the connecting mechanism includes a connecting plate, connecting holes, and connecting bolts. The connecting plate is symmetrically arranged on the front and rear sides of the mounting ring. The top of the connecting plate is equidistantly perforated with multiple connecting holes, which are connected to each other by connecting bolts.
[0009] Preferably, the mounting rings are spliced together to form a circular structure, which is fitted onto the outer wall of the ventilator body.
[0010] Preferably, the filtering mechanism includes an annular frame and a filter screen. The annular frame is disposed on the right side of the circular structure on the right side via the filtering mechanism, and the filter screen is disposed inside the annular frame.
[0011] As preferred, the mounting mechanism comprises mounting holes and mounting bolts, the mounting holes are annularly arranged on the right side of the annular frame and the right side of the right mounting ring, and the mounting holes are connected by the mounting bolts through threads.
[0012] As preferred, the secondary noise reduction mechanism comprises a secondary noise reduction pad and a dustproof pad, the secondary noise reduction pad is attached to the inner wall of the ventilator body, and the outer wall of the secondary noise reduction pad is provided with the dustproof pad.
[0013] The utility model has the advantages that:
[0014] Compared with the prior art, the novel municipal tunnel ventilation device has the advantages that:
[0015] The first noise reduction mechanism, the connection mechanism, the mounting mechanism, the filtering mechanism, and the secondary noise reduction mechanism cooperate with each other to reduce the noise of the ventilator and improve the driving environment in the tunnel.
[0016] 1. The low-noise design effectively reduces the operating noise of the fan, improves the driving environment in the tunnel, and reduces the impact of noise on surrounding residents.
[0017] 2. The modular design makes the installation and maintenance of the ventilation device more convenient, each module can be independently installed and disassembled, reducing the construction difficulty and time, and in addition, the modular design is convenient for later upgrading and expansion. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.
[0019] Figure 1 It is a front view structural schematic diagram of a novel municipal tunnel ventilation device according to an embodiment of the utility model;
[0020] Figure 2 It is a split structure schematic diagram of a novel municipal tunnel ventilation device according to an embodiment of the utility model;
[0021] Figure 3 It is an enlarged schematic diagram of the structure at A of a novel municipal tunnel ventilation device according to an embodiment of the utility model;
[0022] Figure 4 It is a split schematic diagram of a secondary noise reduction mechanism of a novel municipal tunnel ventilation device according to an embodiment of the utility model.
[0023] In the drawings:
[0024] 1. Ventilator body; 2. Primary noise reduction mechanism; 3. Connecting mechanism; 4. Installation mechanism; 5. Filtering mechanism; 6. Mounting rod; 7. Secondary noise reduction mechanism; 8. Mounting ring; 9. Primary noise reduction pad; 10. Connecting plate; 11. Connecting hole; 12. Connecting bolt; 13. Annular frame; 14. Filter screen; 15. Mounting hole; 16. Mounting bolt; 17. Secondary noise reduction pad; 18. Dustproof pad. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit its scope.
[0026] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inner", "outer", 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.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Example 1
[0029] like Figures 1-4 As shown, a novel municipal tunnel ventilation device according to an embodiment of the present utility model is applied to a ventilation fan body 1. A primary noise reduction mechanism 2 is symmetrically arranged on the outer wall of the ventilation fan body 1. The primary noise reduction mechanisms 2 are connected to each other by a connecting mechanism 3. A filter mechanism 5 is connected to the right side of the primary noise reduction mechanism 2 on the right side by an installation mechanism 4. An installation rod 6 is provided on the top of both the primary noise reduction mechanism 2 and the ventilation fan body 1. A secondary noise reduction mechanism 7 is provided on the inner wall of the ventilation fan body 1.
[0030] In this embodiment, first, the primary noise reduction mechanism 2 is attached to the outer wall of the ventilator body 1, a plurality of primary noise reduction mechanisms 2 are spliced and connected through the connection mechanism 3, a plurality of primary noise reduction mechanisms 2 form a circular structure and are sleeved on the outer wall of the ventilator body 1, and then the filtering mechanism 5 is fixed on the right side of the circular structure on the right side through the mounting mechanism 4. When noise reduction is performed, the plurality of spliced primary noise reduction mechanisms 2 and the components in the secondary noise reduction mechanism 7 in the inner wall of the ventilator body 2 play a noise reduction effect for the ventilator body 1.
[0031] Embodiment two
[0032] The primary noise reduction mechanism 2 comprises a mounting ring 8 and a primary noise reduction pad 9, the mounting ring 8 is symmetrically arranged on the outer wall of the ventilator body 1, the mounting ring 8 is connected through the connection mechanism 3, and the inner wall of the mounting ring 8 is provided with a primary noise reduction pad 9;
[0033] The connection mechanism 3 comprises a connection plate 10, a connection hole 11 and a connection bolt 12, the connection plate 10 is symmetrically arranged on the front and back of the mounting ring 8, a plurality of connection holes 11 are equidistantly arranged on the top of the connection plate 10, the connection holes 11 are connected through the connection bolt 12, the mounting ring 8 is spliced to form a circular structure, and the circular structure is sleeved on the outer wall of the ventilator body 1;
[0034] The filtering mechanism 5 comprises an annular frame 13 and a filter screen 14, the annular frame 13 is arranged on the right side of the circular structure on the right side through the filtering mechanism 5, and the filter screen 14 is arranged in the annular frame 13;
[0035] The mounting mechanism 4 comprises a mounting hole 15 and a mounting bolt 16, the mounting hole 15 is annularly arranged on the right side of the annular frame 13 and the right side of the mounting ring 8 on the right side, and the mounting hole 15 is connected through the threaded mounting bolt 16;
[0036] The secondary noise reduction mechanism 7 comprises a secondary noise reduction pad 17 and a dustproof pad 18, the secondary noise reduction pad 17 is attached to the inner wall of the ventilator body 1, and the dustproof pad 18 is arranged on the outer wall of the secondary noise reduction pad 17;
[0037] On the basis of embodiment 1, the structure and function of the device are further optimized, a damping structure can be added to the mounting rod 6, and a plurality of mounting rods 6 can share the load bearing of the ventilator body 1.
[0038] In summary, by means of the above technical scheme of the utility model, when the device is used, firstly, the installation rings 8 are attached to the outer wall of the ventilator body 1, the installation rings 8 are spliced, the abutment plates 10 on the installation rings 8 are butted, the abutment holes 11 are butted, the abutment bolts 12 are inserted into the butted abutment holes 11 in a threaded connection mode, so that the installation rings 8 are connected and form a circular structure and are sleeved on the outer wall of the ventilator body 1, then the annular frame 13 is sleeved on the right side of the circular structure formed by the right installation rings 8, the installation holes 15 are butted, the installation bolts 16 are inserted into the butted installation holes 15 in a threaded connection mode, so that the annular frame 13 and the filter screen 14 in the annular frame 13 are fixed on the right side of the circular structure on the right side, and when noise reduction is performed, the multiple spliced first-stage noise reduction pads 9 and the second-stage noise reduction pads 17 on the inner wall of the ventilator body 2 play a noise reduction effect on the ventilator body 1.
[0039] The above merely describes the preferred embodiments of the utility model and is not intended to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A new and improved municipal tunnel ventilation device substantially as herein described and illustrated. Be applied to ventilator body (1), the outer wall of the ventilator body (1) is provided with a first noise reduction mechanism (2) symmetrically, the first noise reduction mechanism (2) is connected through the connecting mechanism (3), the right side of the right side of the first noise reduction mechanism (2) is connected with the filtering mechanism (5) through the mounting mechanism (4), the first noise reduction mechanism (2) and the top of the ventilator body (1) are provided with mounting rod (6), the inner wall of the ventilator body (1) is provided with secondary noise reduction mechanism (7).
2. A new municipal tunnel ventilation device according to claim 1, characterized in that, The first noise reduction mechanism (2) includes mounting ring (8) and first noise reduction pad (9), the mounting ring (8) is symmetrically arranged on the outer wall of the ventilator body (1), the mounting ring (8) is connected through the connecting mechanism (3), the inner wall of the mounting ring (8) is provided with the first noise reduction pad (9).
3. A new municipal tunnel ventilation device according to claim 2, characterized in that, The connecting mechanism (3) includes connecting plate (10), connecting hole (11) and connecting bolt (12), the connecting plate (10) is symmetrically arranged on the front and back of the mounting ring (8), a plurality of connecting holes (11) are equidistantly formed on the top of the connecting plate (10), the connecting holes (11) are connected through the connecting bolt (12).
4. A new municipal tunnel ventilation device according to claim 3, characterized in that, The mounting ring (8) is spliced to form a circular structure, and the circular structure is sleeved on the outer wall of the ventilator body (1).
5. A new municipal tunnel ventilation device according to claim 4, characterized in that, The filtering mechanism (5) includes annular frame (13) and filter screen (14), the annular frame (13) is arranged on the right side of the circular structure through the filtering mechanism (5), and the annular frame (13) is provided with the filter screen (14).
6. A new municipal tunnel ventilation device according to claim 5, characterized in that, The mounting mechanism (4) includes mounting hole (15) and mounting bolt (16), the mounting hole (15) is annularly arranged on the right side of the annular frame (13) and the right side of the right mounting ring (8), and the mounting hole (15) is connected through the thread with the mounting bolt (16).
7. A new municipal tunnel ventilation device according to claim 6, characterized by The secondary noise reduction mechanism (7) includes secondary noise reduction pad (17) and dustproof pad (18), the secondary noise reduction pad (17) is attached to the inner wall of the ventilator body (1), and the outer wall of the secondary noise reduction pad (17) is provided with the dustproof pad (18).