A train air duct flow guide and noise reduction integrated structure

Abstract

The utility model relates to train air duct technical field, and disclose a train air duct is with the integrated structure of flow guide and noise reduction, including air duct, the locating plate of fixed mounting in the air duct side wall to set up the noise reduction subassembly of air duct side position, the noise reduction subassembly includes the noise reduction mechanism of setting up in air duct side position, the side position of air duct is provided with auxiliary mechanism, the auxiliary mechanism is connected with noise reduction mechanism, the noise reduction mechanism includes the outer layer noise reduction board, the outer layer noise reduction board sliding installation is in the inner wall of air duct, the side wall fixed mounting of outer layer noise reduction board has the joint block. The utility model solves the simple structure of existing air duct, and air flow distribution is uneven in the air duct, and there is eddy current and turbulence phenomenon, leads to the big air flow resistance, influences ventilation efficiency, and the ventilation effect is poor in partial area, and the problem that is difficult to satisfy the even ventilation in the compartment is solved.

Description

Technical Field

[0001] This utility model relates to the field of train ventilation technology, specifically to an integrated structure for guiding airflow and reducing noise in train ventilation systems. Background Technology

[0002] Train air ducts are channel structures in a train's ventilation system used to guide, transport, and distribute air. They play a crucial role in ensuring the quality of the environment inside the carriages. They are typically made of lightweight yet high-strength materials, such as aluminum alloys and composite materials, to meet the requirements of lightweight design and structural stability. Train air ducts connect various components of the ventilation system, such as air conditioning units, fresh air inlets, and exhaust vents, systematically delivering treated fresh air or air with regulated temperature and humidity to different areas within the carriages, while simultaneously expelling stale air, thus maintaining air circulation within the carriages.

[0003] The existing air duct structure is simple, and the airflow distribution inside the air duct is uneven, with eddies and turbulence, which leads to high airflow resistance, affects ventilation efficiency, and the ventilation effect is poor in some areas, making it difficult to meet the problem of uniform ventilation in the carriage. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated structure for guiding airflow and reducing noise in train ventilation ducts, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated airflow guiding and noise reduction structure for train ventilation ducts, comprising a ventilation duct,

[0006] A positioning plate fixedly installed on the side wall of the air duct;

[0007] And a noise reduction component located on the side of the air duct;

[0008] The noise reduction component includes a noise reduction mechanism disposed on the side of the air duct;

[0009] An auxiliary mechanism is provided on the side of the air duct, and the auxiliary mechanism is connected to the noise reduction mechanism.

[0010] Preferably, the noise reduction mechanism includes an outer noise reduction plate, which is slidably installed on the inner wall of the air duct. A snap-fit ​​block is fixedly installed on the side wall of the outer noise reduction plate. The side wall of the snap-fit ​​block is slidably connected to the inner wall of the air duct with a rectangular groove. An inner noise reduction plate is fixedly installed on the inner wall of the outer noise reduction plate, and a guide plate is fixedly installed on the inner wall of the inner noise reduction plate.

[0011] Preferably, there are multiple guide plates, which are evenly distributed on the inner wall of the inner noise reduction plate.

[0012] Preferably, the inner noise reduction board material is a porous sound-absorbing material, such as glass fiber cotton, and the outer noise reduction board material is a smooth plane.

[0013] Preferably, the auxiliary mechanism includes a side plate, which is fixedly installed on the side wall of the air duct. A plug rod is slidably installed on the inner wall of the side plate. A pull block is fixedly installed at one end of the plug rod. A compression spring is fixedly installed on the side wall of the pull block. The other end of the compression spring is fixedly connected to the side wall of the side plate. A limit plate is slidably installed on the side wall of the plug rod. The limit plate is slidably connected to the inner wall of the air duct side wall with a positioning groove. The inner wall of the limit plate is slidably installed on the side wall of the outer noise reduction plate.

[0014] Preferably, the sidewall of the air duct is fixedly equipped with a reinforcement member, which is evenly distributed on the sidewall of the air duct.

[0015] Preferably, there are four positioning plates, all of which are of equal shape and size, and two positioning plates are arranged symmetrically with respect to the center plane of the air duct in the left and right directions.

[0016] This utility model provides an integrated airflow guiding and noise reduction structure for train ventilation ducts. It has the following beneficial effects:

[0017] (1) The present invention uses a porous sound-absorbing material, namely glass fiber cotton, as the inner layer noise reduction plate material. It has a large number of tiny pores evenly distributed inside, which can effectively absorb the noise generated by the airflow. The outer layer noise reduction plate material is a smooth plane, which can guide the airflow to flow smoothly and reduce airflow separation and eddy generation. The guide plate and the inner layer noise reduction plate are fixedly connected by adhesive to form an integrated structure. The evenly arranged guide plate can evenly diffuse the airflow entering the air duct, avoid excessive local airflow velocity, and make the airflow more evenly distributed in the air duct. This solves the problem that the existing air duct structure is simple, the airflow distribution inside the air duct is uneven, there are eddies and turbulence, resulting in high airflow resistance, affecting ventilation efficiency, and poor ventilation effect in some areas, making it difficult to meet the problem of uniform ventilation in the carriage.

[0018] (2) When the operator uses the device, the outer noise reduction plate and the inner noise reduction plate are first slidably installed on the inner wall of the air duct. The snap-fit ​​block will slide on the inner wall of the rectangular groove. Then the position of the pull block can be pulled. The pull block drives the position of the plug rod to move. Then the limiting plate is snapped and installed on the inner wall of the air duct to limit the position of the outer noise reduction plate and the inner noise reduction plate. Then the pull block is released. Under the action of the compression spring, the plug rod will slide on the inner wall of the side plate. One end of the plug rod will be inserted into the inner wall of the limiting plate, realizing the quick and stable installation of the outer noise reduction plate and the inner noise reduction plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0020] Figure 2 This is a side view of the present invention.

[0021] Figure 3 This is a schematic diagram of the noise reduction mechanism of this utility model;

[0022] Figure 4 This is a partial structural schematic diagram of the auxiliary mechanism of this utility model.

[0023] In the diagram: 1. Air duct; 2. Positioning plate; 3. Reinforcing component; 4. Noise reduction component; 41. Noise reduction mechanism; 411. Outer noise reduction plate; 412. Snap-fit ​​block; 413. Guide plate; 414. Inner noise reduction plate; 42. Auxiliary mechanism; 421. Limiting plate; 422. Insert rod; 423. Side plate; 424. Pull block; 425. Compression spring. Detailed Implementation

[0024] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0025] Example 1: A preferred embodiment of the integrated airflow guiding and noise reduction structure for train ventilation ducts provided by this utility model is as follows: Figures 1 to 4 As shown: A train ventilation duct integrated airflow guiding and noise reduction structure, including ventilation duct 1,

[0026] Positioning plates 2 are fixedly installed on the side wall of the air duct 1. There are four positioning plates 2, and the four positioning plates 2 are all the same shape and size. Two positioning plates 2 are set together and symmetrically arranged with respect to the middle surface of the air duct 1 in the left and right directions.

[0027] And a noise reduction component 4 is installed on the side of the air duct 1;

[0028] The noise reduction component 4 includes a noise reduction mechanism 41 disposed on the side of the air duct 1;

[0029] An auxiliary mechanism 42 is provided on the side of the air duct 1, and the auxiliary mechanism 42 is connected to the noise reduction mechanism 41.

[0030] The noise reduction mechanism 41 includes an outer noise reduction plate 411, which is slidably installed on the inner wall of the air duct 1. A snap-fit ​​block 412 is fixedly installed on the side wall of the outer noise reduction plate 411. The side wall of the snap-fit ​​block 412 is slidably connected to the inner wall of the air duct 1 with a rectangular groove. An inner noise reduction plate 414 is fixedly installed on the inner wall of the outer noise reduction plate 411. A guide plate 413 is fixedly installed on the inner wall of the inner noise reduction plate 414.

[0031] In this embodiment, there are multiple guide plates 413, which are evenly distributed on the inner wall of the inner noise reduction plate 414.

[0032] Furthermore, the inner noise reduction panel 414 is made of porous sound-absorbing material, namely glass fiber cotton, while the outer noise reduction panel 411 is made of a smooth flat surface.

[0033] In the specific implementation process, the inner noise reduction plate 414 is made of porous sound-absorbing material, which is glass fiber cotton. It has a large number of tiny pores evenly distributed inside, which can effectively absorb the noise generated by the airflow. The outer noise reduction plate 411 is made of a smooth plane, which can guide the airflow to flow smoothly and reduce airflow separation and eddy current generation. The guide plate 413 and the inner noise reduction plate 414 are fixedly connected by adhesive to form an integrated structure. The evenly arranged guide plates 413 can evenly diffuse the airflow entering the air duct, avoid excessive local airflow velocity, and make the airflow more evenly distributed in the air duct.

[0034] Example 2: Based on Example 1, a preferred embodiment of the integrated airflow guiding and noise reduction structure for train ventilation ducts provided by this utility model is as follows: Figures 1 to 4 As shown: The auxiliary mechanism 42 includes a side plate 423, which is fixedly installed on the side wall of the air duct 1. A plug rod 422 is slidably installed on the inner wall of the side plate 423. A pull block 424 is fixedly installed on one end of the plug rod 422. A compression spring 425 is fixedly installed on the side wall of the pull block 424. The other end of the compression spring 425 is fixedly connected to the side wall of the side plate 423. A limiting plate 421 is slidably installed on the side wall of the plug rod 422. The limiting plate 421 is slidably connected to the inner wall of the side wall of the air duct 1 with a positioning groove. The inner wall of the limiting plate 421 is slidably installed on the side wall of the outer noise reduction plate 411.

[0035] In this embodiment, a reinforcement member 3 is fixedly installed on the side wall of the air duct 1, and the reinforcement member 3 is evenly distributed on the side wall of the air duct 1.

[0036] In the specific implementation process, when the operator uses the device, firstly, the outer noise reduction plate 411 and the inner noise reduction plate 414 are slidably installed onto the inner wall of the air duct 1. The locking block 412 will slide on the inner wall of the rectangular groove. Then, the position of the pulling block 424 can be pulled. The pulling block 424 drives the position of the plug-in rod 422 to move. Then, the limiting plate 421 is locked and installed onto the inner wall of the air duct 1 to limit the position of the outer noise reduction plate 411 and the inner noise reduction plate 414. Then, the pulling block 424 is released. Under the action of the compression spring 425, the plug-in rod 422 will slide on the inner wall of the side plate 423. One end of the plug-in rod 422 will be inserted into the inner wall of the limiting plate 421, realizing the quick and stable installation of the outer noise reduction plate 411 and the inner noise reduction plate 414.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A train air duct integrated airflow guiding and noise reduction structure, including an air duct (1). Positioning plate (2) is fixedly installed on the side wall of the air duct (1); and a noise reduction component (4) disposed on the side of the air duct (1); characterized in that: The noise reduction component (4) includes a noise reduction mechanism (41) located on the side of the air duct (1). An auxiliary mechanism (42) is provided on the side of the air duct (1), and the auxiliary mechanism (42) is connected to the noise reduction mechanism (41); The noise reduction mechanism (41) includes an outer noise reduction plate (411), which is slidably installed on the inner wall of the air duct (1). A snap-fit ​​block (412) is fixedly installed on the side wall of the outer noise reduction plate (411). The side wall of the snap-fit ​​block (412) is slidably connected to the inner wall of the air duct (1) with a rectangular groove. An inner noise reduction plate (414) is fixedly installed on the inner wall of the outer noise reduction plate (411), and a guide plate (413) is fixedly installed on the inner wall of the inner noise reduction plate (414). There are multiple guide plates (413), and the multiple guide plates (413) are evenly distributed on the inner wall of the inner noise reduction plate (414); The inner noise reduction plate (414) is made of porous sound-absorbing material, which is glass fiber cotton, and the outer noise reduction plate (411) is made of a smooth plane.

2. The integrated airflow guiding and noise reduction structure for train ventilation ducts according to claim 1, characterized in that: The auxiliary mechanism (42) includes a side plate (423), which is fixedly installed on the side wall of the air duct (1). A plug rod (422) is slidably installed on the inner wall of the side plate (423). A pull block (424) is fixedly installed on one end of the plug rod (422). A compression spring (425) is fixedly installed on the side wall of the pull block (424). The other end of the compression spring (425) is fixedly connected to the side wall of the side plate (423). A limiting plate (421) is slidably installed on the side wall of the plug rod (422). The limiting plate (421) is slidably connected to the inner wall of the side wall of the air duct (1) with a positioning groove. The inner wall of the limiting plate (421) is slidably installed on the side wall of the outer noise reduction plate (411).

3. The integrated airflow guiding and noise reduction structure for train ventilation ducts according to claim 2, characterized in that: The sidewall of the air duct (1) is fixedly equipped with a reinforcement member (3), which is evenly distributed on the sidewall of the air duct (1).

4. The integrated airflow guiding and noise reduction structure for train ventilation ducts according to claim 3, characterized in that: There are four positioning plates (2), all of which are equal in shape and size. Two positioning plates (2) are symmetrically arranged in the middle of the left and right directions relative to the air duct (1).

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