A centralized integrated air duct for a subway train

Abstract

The utility model discloses a centralized integrated air duct for subway train belongs to subway train technical field, including the casing, the casing inside is provided with the air duct cavity, and the casing one side is provided with the air intake, and the air duct cavity bottom end both ends all are equipped with a plurality of equidistance air outlet, the casing top both ends are provided with the clamping plate. In the utility model, the air duct cavity, the air outlet, two clamping plates and two end plates and rectangular protrusions are integrally formed, so that the air duct can be quickly installed, and the air direction leaf, the noise reduction top plate and the partition frame can also be quickly assembled, achieving the effect of uniform noise reduction and air outlet. Each partition frame and the flow guide grating are located between two adjacent rows of air outlets, and the corner frame is located outside the air outlet end of the partition frame, which helps to intercept part of the wind power, ensures uniform air outlet of each air outlet, and significantly improves the uniformity of air volume distribution of each air outlet under the premise of not increasing the energy loss of the air duct during long-distance air supply.

Description

Technical Field

[0001] This utility model relates to the field of subway train technology, and in particular to a centralized integrated air duct for subway trains. Background Technology

[0002] A subway is a type of urban rail transit system, referring to a high-speed, high-capacity rail transit system built in cities, powered by electricity. Its trains run on fully enclosed tracks; lines in the city center are primarily located in underground tunnels, while lines outside the city center are generally located on elevated bridges or at ground level.

[0003] A search revealed a patent with publication number CN115123326A entitled "A Ventilation Duct Structure for Subway Vehicles." The patent addresses the technical challenge of improving the uniformity of airflow distribution at each outlet during long-distance air delivery without increasing energy loss. It utilizes a V-shaped baffle installed along the entire length of the outlets within the duct body, dividing the duct's interior into a variable cross-section region in the front and a static pressure region in the rear. This leverages the advantages of both variable cross-section and static pressure ducts in ensuring uniform airflow distribution, significantly improving the uniformity of airflow distribution at each outlet during long-distance air delivery without increasing energy loss. However, the patent still suffers from several drawbacks: the duct is composed of multiple components, leading to uneven airflow during use. Therefore, a centralized integrated ventilation duct for subway trains is proposed to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a centralized integrated ventilation duct for subway trains.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A centralized integrated ventilation duct for subway trains includes a shell with a duct cavity inside. An air inlet is provided on one side of the shell, and multiple equidistant air outlets are provided at both ends of the bottom of the duct cavity. A retaining plate is provided at both ends of the top of the shell, and end plates are provided on the opposite sides of the two retaining plates. Multiple rectangular protrusions are fixedly installed at both ends of the bottom inner wall of the shell, and a partition frame is inserted into the top of the two rectangular protrusions in each row. A guide grille is fixedly provided in the middle of the partition frame, and an angled frame is fixedly installed on the outer wall of the partition frame. Multiple exhaust ports are provided at the upper end of the inclined surface of the angled frame.

[0007] Preferably, each of the air outlets has multiple equally spaced air vanes rotatably installed inside.

[0008] Preferably, the two rectangular protrusions in each column are staggered with the two air outlets in each column.

[0009] Preferably, both ends of the bottom of the partition frame are provided with notches, and the notches are slidably inserted into the rectangular protrusions.

[0010] Preferably, the top and bottom ends of the opposite outer walls of the two card plates are both arc-shaped.

[0011] Preferably, a noise-reducing top plate is fixedly installed at the lower ends of the two card plates and the two end plates, and a plurality of equally spaced support springs are fixedly installed at the top of the noise-reducing top plate. A stop plate is fixedly installed at the top of the plurality of support springs, and the stop plate slides between the two card plates and the two end plates.

[0012] Preferably, the corner frame is located outside the air outlet end of the partition frame.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model proposes a centralized integrated air duct for subway trains. The air duct cavity, air outlet, two clamping plates, two end plates, and rectangular protrusions inside the shell are integrally formed, which allows for quick installation of the air duct and rapid assembly of the wind vanes, noise reduction top plate, and partition frame. This achieves a low-noise and uniform air output effect. Each partition frame and guide grille is located between two adjacent rows of air outlets, and the corner frame is located on the outside of the air outlet end of the partition frame, which helps to intercept part of the air force and ensure that each air outlet outputs air evenly. This significantly improves the uniformity of air volume distribution at each air outlet during long-distance air supply without increasing the energy loss of the air duct. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a centralized integrated ventilation duct for subway trains proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a centralized integrated ventilation duct cavity for subway trains proposed in this utility model;

[0017] Figure 3 This is a structural schematic diagram of a centralized integrated ventilation duct frame for subway trains proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of a centralized integrated ventilation duct support plate for subway trains proposed in this utility model.

[0019] In the diagram: 1. Housing, 2. Air inlet, 3. Air duct cavity, 4. Air outlet, 5. Air vane, 6. Card plate, 7. End plate, 8. Noise reduction top plate, 9. Support spring, 10. Support plate, 11. Rectangular protrusion, 12. Partition frame, 13. Air guide grille, 14. Notch, 15. Angular frame, 16. Exhaust vent. Detailed Implementation

[0020] Reference Figures 1-4A centralized integrated ventilation duct for subway trains includes a housing 1, an air duct cavity 3 inside the housing 1, an air inlet 2 on one side of the housing 1, and multiple equally spaced air outlets 4 at both ends of the bottom of the air duct cavity 3. A retaining plate 6 is provided at both ends of the top of the housing 1, and end plates 7 are provided on opposite sides of the two retaining plates 6. Multiple rectangular protrusions 11 are fixedly installed at both ends of the inner wall at the bottom of the housing 1, and a partition frame 12 is inserted into the top of each row of two rectangular protrusions 11. A guide grille 13 is fixedly installed in the middle of the partition frame 12, and an angled frame 15 is fixedly installed on the outer wall of the partition frame 12. Multiple exhaust ports 16 are provided on the upper end of the inclined surface of the angled frame 15.

[0021] In this invention, each air outlet 4 has multiple equally spaced wind vanes 5 rotatably installed inside, and the air outlet 4 can be adjusted by rotating the wind vanes 5.

[0022] The two rectangular protrusions 11 in each column are staggered with the two air outlets 4 in each column, so that each partition 12 and the air guide grille 13 are located between two adjacent rows of air outlets 4.

[0023] The bottom ends of the partition frame 12 are provided with notches 14, and the notches 14 are slidably inserted into the rectangular protrusions 11, making the partition frame 12 easy to install.

[0024] The top and bottom of the outer walls of the two opposite ends of the card plate 6 are rounded, which makes the air duct easy to install quickly;

[0025] A noise-reducing top plate 8 is fixedly installed at the lower ends of the two clamping plates 6 and the two end plates 7. Multiple equally spaced support springs 9 are fixedly installed at the top of the noise-reducing top plate 8. A stop plate 10 is fixedly installed at the top of the multiple support springs 9. The stop plate 10 slides between the two clamping plates 6 and the two end plates 7, so that the stop plate 10 is tightly attached to the bottom of the mounting groove under the support of the multiple support springs 9, thus avoiding wind noise generated by the gaps.

[0026] The corner frame 15 is located outside the air outlet of the partition frame 12.

[0027] Working principle: The air duct cavity 3, air outlet 4, two clamping plates 6, two end plates 7, and rectangular protrusion 11 inside the housing 1 are integrally formed, which allows for quick installation of the air duct and quick assembly of the wind vane 5, noise reduction top plate 8, and partition frame 12, achieving a low noise and uniform air output effect. Each partition frame 12 and the air guide grille 13 are located between two adjacent rows of air outlets 4, and the angle frame 15 is located outside the air outlet end of the partition frame 12, which helps to intercept part of the air force and ensure that each air outlet 4 outputs air evenly. This greatly improves the uniformity of air volume distribution at each air outlet during long-distance air supply without increasing the energy loss of the air duct.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A centralized integrated ventilation duct for subway trains, comprising a housing (1), wherein a ventilation cavity (3) is provided inside the housing (1), an air inlet (2) is provided on one side of the housing (1), and multiple air outlets (4) are provided at equal intervals at both ends of the bottom of the ventilation cavity (3), characterized in that, The top end of the housing (1) is provided with a retaining plate (6), and the two retaining plates (6) are provided with end plates (7) on opposite sides. Multiple rectangular protrusions (11) are fixedly installed on both ends of the bottom inner wall of the housing (1), and a partition frame (12) is inserted into the top of the two rectangular protrusions (11) in each column. A flow guide grille (13) is fixedly installed in the middle of the partition frame (12), and an angle frame (15) is fixedly installed on the outer wall of the partition frame (12). Multiple exhaust ports (16) are opened on the upper end of the inclined surface of the angle frame (15).

2. The centralized integrated ventilation duct for subway trains according to claim 1, characterized in that, Each of the air outlets (4) has multiple equally spaced air vanes (5) rotatably mounted inside.

3. The centralized integrated ventilation duct for subway trains according to claim 1, characterized in that, The two rectangular protrusions (11) in each column are staggered with the two air outlets (4) in each column.

4. A centralized integrated ventilation duct for subway trains according to claim 3, characterized in that, The bottom end of the partition (12) is provided with notches (14) at both ends, and the notches (14) are slidably inserted into the rectangular protrusion (11).

5. A centralized integrated ventilation duct for subway trains according to claim 1, characterized in that, The top and bottom ends of the opposite outer walls of the two card plates (6) are both arc-shaped.

6. A centralized integrated ventilation duct for subway trains according to claim 1, characterized in that, A noise-reducing top plate (8) is fixedly installed at the lower ends of the two card plates (6) and the two end plates (7), and a plurality of equally spaced support springs (9) are fixedly installed at the top of the noise-reducing top plate (8). A stop plate (10) is fixedly installed at the top of the plurality of support springs (9), and the stop plate (10) slides between the two card plates (6) and the two end plates (7).

7. A centralized integrated ventilation duct for subway trains according to claim 1, characterized in that, The corner frame (15) is located outside the air outlet end of the partition frame (12).

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