Subway vehicle air duct structure

Abstract

The utility model discloses an air duct structure of a metro vehicle, which relates to the technical field of metro air ducts and comprises a carriage ceiling, an air conveying assembly is arranged at the bottom end of the carriage ceiling and comprises two air duct bodies, and mounting grooves matched with the air duct bodies are formed in the positions, close to the two sides, of the bottom end of the carriage ceiling. Through the air conveying assembly, secondary sealing is facilitated, leakage of a large amount of cold air or warm air during conveying is avoided, the conveying effect is improved conveniently, airflow passing through an air outlet is guided conveniently, an air outlet grid plate does not need to be overall disassembled for overhauling, the labor intensity of workers is reduced conveniently, and the overhauling efficiency is improved; the problems that in the using process of a traditional metro vehicle air duct structure, complete sealing is difficult to guarantee, the air leakage condition is likely to happen, in the overhauling process, an air outlet grid plate usually needs to be detached, installation is conducted after maintenance and overhauling, lifting and placing need to be conducted back and forth in the process, and the overhauling efficiency is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of subway air ducts, in particular to an air duct structure for a subway vehicle. Background Art

[0002] The subway is a fast, high-capacity, electrically-driven rail transit system built in the city. The subway air duct is a passage inside the subway that transports cold or warm air. The air duct has a segmented structure, and each section can be flipped open for maintenance inside the air duct.

[0003] When the existing subway vehicle air duct structure is used, it is usually necessary to install the air duct in the car body first, and then install the air outlet grille assembly. During the installation process, gaps are easily generated, which may cause air leakage. During the maintenance process, the air outlet grille usually needs to be removed and installed after maintenance. The process requires lifting and placing back and forth, which affects the maintenance efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a subway vehicle air duct structure, which can effectively solve the problem that gaps are easily generated during the installation process in the background technology, resulting in air leakage, and during the maintenance process, the air outlet grille usually needs to be removed and installed after maintenance and repair. The process requires lifting and placing back and forth, which affects the maintenance efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A subway vehicle air duct structure comprises a carriage ceiling, an air delivery assembly is arranged at the bottom end of the carriage ceiling, and the air delivery assembly comprises two air duct bodies;

[0007] The bottom end of the car ceiling is provided with installation grooves matching the air duct body on both sides, the two air duct bodies are installed in the installation grooves, the front and rear ends of the air duct bodies are provided with storage cavities, an extension rod is slidably installed inside the storage cavity, a movable rod is slidably installed inside the extension rod, and an air outlet grille is installed at the lower position of the outer circle of the two movable rods.

[0008] As a further solution of the utility model, an air inlet is opened at a front position of the top end of the air duct body, and the air inlet is connected to the air outlet of the air conditioner in the ceiling of the vehicle.

[0009] As a further solution of the utility model, a plurality of equally spaced air outlets are provided through the upper and lower ends of the air outlet grille, a plurality of air outlet guide plates are fixedly connected to the top end of the air outlet grille, and the number of the air outlet guide plates is adaptively matched with the air outlets.

[0010] As a further solution of the utility model, a plurality of V-shaped air guide plates are fixedly connected to the interior of the air duct body, the air outlet guide plates are inclined, and the inclination direction of the plurality of air outlet guide plates located at the front end of the center point of the air outlet grille is opposite to that of the plurality of air outlet guide plates located at the rear end of the center point of the air outlet grille.

[0011] As a further solution of the utility model, a fixed thread groove is provided at an upper position inside the extension rod storage cavity, and a fixed thread head matching the thread of the fixed thread groove is fixedly connected to the top end of the movable rod.

[0012] As a further solution of the utility model, the movable rod is rotatably connected to the air outlet grid plate, and the top end of the air outlet guide plate does not contact the V-shaped air guide plate.

[0013] As a further solution of the utility model, the bottom end of the air duct body is fitted with the top end of the air outlet grille, and a rubber sealing ring is provided inside the compartment ceiling and around the connection between the air duct body and the storage cavity.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model is provided with an air delivery component, a V-shaped air guide plate, an air outlet guide plate, and a rubber sealing ring that cooperate with each other. When installed, the rubber sealing ring is attached to the connection between the air duct body and the air outlet grid plate, which facilitates secondary sealing and avoids a large amount of cold air or warm air from leaking out during transportation, thereby facilitating improving the transportation effect.

[0016] During use, the V-shaped air guide plate can improve the uniformity of airflow distribution in the air duct body, and the air outlet guide plate can guide the airflow passing through the air outlet, thereby improving the uniformity of discharge and improving the comfort of use;

[0017] By setting the extension rod, movable rod and storage cavity in conjunction with the air outlet grille, during maintenance, the air outlet grille does not need to be removed as a whole for maintenance by extending the storage cavity and the extension rod downward into the storage cavity, thereby eliminating the need for personnel to lift and carry the grille, thereby reducing the labor intensity of personnel and improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a subway vehicle air duct structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the connection between the overall structure of the subway vehicle air duct structure of the utility model;

[0020] Figure 3 It is a disassembled diagram of the overall structure of a subway vehicle air duct structure of the utility model;

[0021] Figure 4 The utility model is a subway vehicle air duct structure Figure 3 Magnified view of area A.

[0022] In the figure: 1. Carriage roof; 2. Air supply assembly; 3. Air duct body; 4. Storage chamber; 5. Extension rod; 6. Movable rod; 7. Air outlet grille; 8. V-shaped air guide plate; 9. Air outlet; 10. Air outlet guide plate; 11. Air inlet; 12. Fixed thread head; 13. Fixed thread groove; 14. Rubber sealing ring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-4 As shown, a subway vehicle air duct structure includes a car ceiling 1, an air delivery component 2 is arranged at the bottom end of the car ceiling 1, and the air delivery component 2 includes two air duct bodies 3;

[0025] The bottom end of the carriage ceiling 1 is provided with mounting grooves matching the air duct body 3 on both sides, and the two air duct bodies 3 are installed in the mounting grooves. The front and rear ends of the air duct body 3 are provided with storage cavities 4, and an extension rod 5 is slidably installed inside the storage cavity 4. A movable rod 6 is slidably installed inside the extension rod 5, and an air outlet grille 7 is installed at the lower position of the outer circle of the two movable rods 6.

[0026] In this embodiment, an air inlet 11 is opened at the front position of the top of the air duct body 3, and the air inlet 11 is connected to the air conditioning outlet in the vehicle ceiling 1, so as to facilitate the transmission of the generated cold air or hot air into the air duct body 3.

[0027] In this embodiment, a plurality of equally spaced air outlets 9 are provided through the upper and lower ends of the air outlet grille 7, a plurality of air outlet guide plates 10 are fixedly connected to the top of the air outlet grille 7, and the number of the air outlet guide plates 10 is adaptively matched with the air outlets 9. The air outlet guide plates 10 are provided to guide the airflow, thereby facilitating the airflow to flow out from the air outlet 9.

[0028] In this embodiment, a plurality of V-shaped air guide plates 8 are fixedly connected to the interior of the air duct body 3, and the air outlet guide plates 10 are arranged at an angle, and the inclination direction of the plurality of air outlet guide plates 10 located at the front end of the center point of the air outlet grille 7 is opposite to the inclination direction of the plurality of air outlet guide plates 10 located at the rear end of the center point of the air outlet grille 7. Since the air flow direction is transported from the front end to the rear end of the air duct body 3, the inclination angle of the air outlet guide plate 10 matches the air flow ejection direction and the return flow direction, so as to continuously guide the air flow to be ejected from the air outlet 9.

[0029] In this embodiment, a fixed thread groove 13 is provided at the upper position inside the storage cavity 4 of the extension rod 5, and the top end of the movable rod 6 is fixedly connected with a fixed thread head 12 that matches the thread of the fixed thread groove 13. By unscrewing the fixed thread head 12 from the fixed thread groove 13 of the air duct body 3, the fixation of the movable rod 6 can be released, and then the movable rod 6 can be pulled downward, so that the air outlet grid plate 7 can be moved away from the air duct body 3, and then personnel can perform maintenance on the interior of the air duct body 3.

[0030] In this embodiment, the movable rod 6 is rotatably connected to the air outlet grid 7, and the top of the air outlet guide plate 10 does not contact the V-shaped air guide plate 8. The movable rod 6 is rotatably connected to the air outlet grid 7, which can prevent the air outlet grid 7 from interfering with the rotation of the movable rod 6, and the top of the air outlet guide plate 10 does not contact the V-shaped air guide plate 8, thereby facilitating airflow.

[0031] In this embodiment, the bottom end of the air duct body 3 is fitted with the top end of the air outlet grille 7, and a rubber sealing ring 14 is provided inside the car ceiling 1 and around the connection between the air duct body 3 and the storage chamber 4. The rubber sealing ring 14 is provided to facilitate secondary sealing, thereby preventing a large amount of cold air or warm air from leaking out during transportation, thereby improving the transportation effect.

[0032] It should be noted that the utility model is a subway vehicle air duct structure. When in use, firstly, because the air-conditioning air outlet in the car ceiling 1 is connected to the air inlet 11 on the air duct body 3, the air-conditioning can be started to deliver cold air or hot air to the air duct body 3, and a plurality of V-shaped air guide plates 8 are arranged in the air duct body 3, and the air flow direction is delivered from the front end to the rear end of the air duct body 3, so that when passing through the V-shaped air guide plates 8, the V-shaped air guide plates 8 guide the air flow, so as to improve the uniformity of the air flow distribution in the air duct body 3;

[0033] At the same time, an air outlet grid plate 7 is arranged below the air duct body 3, and an air outlet 9 is opened on the air outlet grid plate 7. At the same time, a plurality of air outlet guide plates 10 matching the air outlet 9 are arranged on the top surface of the air outlet grid plate 7, and the inclination angles of the plurality of air outlet guide plates 10 match the air flow ejection direction and the return flow direction, so that the air outlet guide plates 10 are arranged to guide the air flow, so that the air flow is convenient to flow out from the air outlet 9, thereby improving the comfort of use;

[0034] When maintenance is required, since the air outlet grille 7 is installed at the bottom of the air duct body 3 through the movable rod 6, and the movable rod 6 is slidably installed in the extension rod 5, and the extension rod 5 is slidably installed in the storage cavity 4, and the fixed thread head 12 at the end of the movable rod 6 is screwed into the fixed thread groove 13 of the air duct body 3, the movable rod 6 can be released by screwing out the fixed thread head 12, and then the movable rod 6 is pulled out downward, so that the air outlet grille 7 is not fixed, so that the air outlet grille 7 is away from the air duct body 3, and then the personnel can perform maintenance on the inside of the air duct body 3;

[0035] After maintenance and overhaul, the movable rod 6 can be twisted again to drive the air outlet grille 7 to move closer to the air duct body 3 again to assemble them. The process does not require the air outlet grille 7 to be removed for placement, and there is no need to lift and install it for a long time, which is convenient for reducing the labor intensity of personnel.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A subway vehicle air duct structure, comprising a vehicle compartment ceiling (1), characterized in that: An air supply assembly (2) is provided at the bottom end of the carriage ceiling (1), and the air supply assembly (2) comprises two air duct bodies (3); The bottom end of the vehicle compartment ceiling (1) is provided with mounting grooves matching the air duct body (3) at both sides, and the two air duct bodies (3) are installed in the mounting grooves. The front and rear ends of the air duct body (3) are provided with storage cavities (4), and an extension rod (5) is slidably installed inside the storage cavity (4). A movable rod (6) is slidably installed inside the extension rod (5), and an air outlet grille (7) is installed at the lower position of the outer circle of the two movable rods (6).

2. The subway vehicle air duct structure according to claim 1, characterized in that: An air inlet (11) is provided at the front position of the top end of the air duct body (3), and the air inlet (11) is connected to the air outlet of the air conditioner in the vehicle compartment ceiling (1).

3. The subway vehicle air duct structure according to claim 1, characterized in that: A plurality of air outlets (9) arranged at equal distances are provided through the upper and lower ends of the air outlet grille (7), a plurality of air outlet guide plates (10) are fixedly connected to the top end of the air outlet grille (7), and the number of the air outlet guide plates (10) is adaptively matched to the air outlets (9).

4. The subway vehicle air duct structure according to claim 3, characterized in that: A plurality of V-shaped air guide plates (8) are fixedly connected to the interior of the air duct body (3); the air outlet guide plates (10) are arranged obliquely, and the inclination direction of the plurality of air outlet guide plates (10) located at the front end of the center point of the air outlet grille (7) is opposite to that of the plurality of air outlet guide plates (10) located at the rear end of the center point of the air outlet grille (7).

5. The subway vehicle air duct structure according to claim 4, characterized in that: A fixed thread groove (13) is provided at an upper position inside the storage cavity (4) of the extension rod (5), and a fixed thread head (12) threadably matched with the fixed thread groove (13) is fixedly connected to the top end of the movable rod (6).

6. The subway vehicle air duct structure according to claim 4, characterized in that: The movable rod (6) is rotatably connected to the air outlet grid plate (7), and the top end of the air outlet guide plate (10) does not contact the V-shaped air guide plate (8).

7. The subway vehicle air duct structure according to claim 1, characterized in that: The bottom end of the air duct body (3) is fitted with the top end of the air outlet grille (7), and a rubber sealing ring (14) is provided inside the vehicle compartment ceiling (1) and around the connection between the air duct body (3) and the storage cavity (4).

Images