Ventilation structure used in civil aircraft passenger cabin cabinet body

Abstract

The utility model discloses a ventilation structure used in a cabinet body of a civil aircraft passenger cabin, the cabinet body is provided with a vertical front structural plate and a vertical rear structural plate, the cabinet body is fixedly connected to a floor of the aircraft passenger cabin through a cabinet body fixing piece, and the ventilation structure comprises a ventilation expansion cavity arranged at the bottom of the cabinet body, a grating fixing plate and a ventilation grating. The ventilation expansion cavity is located between the front structural plate and the rear structural plate, an upper structural plate and a bottom plate are arranged on the upper face and the lower face of the ventilation expansion cavity respectively, the two ends of the upper structural plate and the two ends of the bottom plate are fixedly connected with the front structural plate and the rear structural plate, and an air inlet corresponding to a ventilation opening of an airplane passenger cabin is formed in one side of the ventilation expansion cavity. The grid fixing plate is detachably installed at an air outlet in the other side of the ventilation expansion cavity, the ventilation grid is detachably installed on the grid fixing plate, and the cabinet body fixing piece is arranged on the bottom plate. According to the utility model, enough ventilation area in front of the ventilation opening in the passenger cabin at the corresponding position of the cabinet body can be ensured, and meanwhile, the structure of the cabinet body is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an airplane passenger cabin ventilation technical field, concretely relates to a ventilation structure for the cabinet body in the civil aircraft passenger cabin. BACKGROUND

[0002] The civil aircraft requires reserving enough ventilation area on both sides of the floor in the internal passenger cabin to prevent the pressure difference between the passenger cabin and the cargo cabin, which influences the internal airflow circulation of the aircraft.

[0003] In order to better serve the passengers, the cabinet body is usually arranged in the passenger cabin of the civil aircraft, when the cabinet body is just located outside the ventilation port on both sides of the passenger cabin, the air outlet of the ventilation port will be blocked, which causes the pressure difference between the passenger cabin and the cargo cabin. Therefore, a ventilation structure for the cabinet body in the civil aircraft passenger cabin is needed to ensure that there is enough ventilation area in front of the ventilation port in the passenger cabin. SUMMARY

[0004] The utility model provides a ventilation structure for the cabinet body in the civil aircraft passenger cabin, which can ensure that there is enough ventilation area in front of the ventilation port in the passenger cabin at the corresponding position of the cabinet body, and at the same time, the structure of the cabinet body is strengthened.

[0005] The utility model discloses the purpose through the following technical scheme:

[0006] A ventilation structure for the cabinet body in the civil aircraft passenger cabin, the cabinet body is equipped with vertical front structure board and rear structure board, and the cabinet body is fixedly connected on the floor of the aircraft passenger cabin through cabinet body fixing piece, characterized by: the ventilation structure includes the ventilation expansion cavity arranged at the bottom of the cabinet body, the grid fixed plate and the ventilation grid, the ventilation expansion cavity is located between the front structure board and the rear structure board, the upper surface and the lower surface of the ventilation expansion cavity are respectively provided with the upper structure plate and the bottom plate, and the two ends of the upper structure plate and the bottom plate are fixedly connected with the front structure board and the rear structure board.

[0007] The utility model further provides a technical scheme: the grid fixed plate and the ventilation grid are embedded in the air outlet of the ventilation expansion cavity for installation, and the outer surface of the ventilation grid is flush with the side edges of the upper structure plate, the front structure plate and the rear structure plate.

[0008] The utility model further provides a technical scheme: the grid fixed plate is provided with the hollow opening, and the position of the hollow opening corresponds to the position of the ventilation hole on the ventilation grid.

[0009] A further technical solution of this utility model is as follows: right-angle connectors are fixed on the inner sides of the front structural plate, the rear structural plate and the upper structural plate near the air outlet, and the grille fixing plate is connected to the right-angle connectors by the first connecting bolt.

[0010] A further technical solution of this utility model is: the ventilation grille is connected to the grille fixing plate by a second connecting bolt.

[0011] A further technical solution of this utility model is that the two ends of the upper structural plate and the bottom plate are connected to the front structural plate and the rear structural plate by mortise and tenon structure.

[0012] A further technical solution of this utility model is as follows: the inner sides of the front structural plate and the rear structural plate are provided with mortises, and the two ends of the upper structural plate and the bottom plate are provided with tenons, which are inserted into the mortises.

[0013] A further technical solution of this utility model is: a right-angle reinforcing plate is provided on one side of the upper structural plate at the air outlet, and the right-angle reinforcing plate is attached and fixed to the upper right-angle side of the upper structural plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model provides a ventilation expansion cavity at the bottom of the cabinet that corresponds to the ventilation vents in the aircraft cabin, and fixes the ventilation grille at the air outlet of the ventilation expansion cavity with a grille fixing plate, so that there is sufficient ventilation area in front of the ventilation vents in the cabin at the corresponding position of the cabinet, ensuring that there is no pressure difference between the aircraft cabin and the cargo hold.

[0016] The upper structural plate, bottom plate, and grille fixing plate connected to the ventilation expansion cavity of this utility model can further strengthen the structure of the cabinet, making the cabinet more robust.

[0017] When it is necessary to disassemble or assemble the cabinet, the cabinet fasteners on the bottom plate can be operated by removing the ventilation grille and grille fixing plate, making disassembly and assembly convenient. Attached Figure Description

[0018] Fig. 1 This is one of the three-dimensional schematic diagrams of the ventilation structure according to an embodiment of this utility model;

[0019] Fig. 2 This is a second perspective view of the ventilation structure according to an embodiment of this utility model;

[0020] Fig. 3 This is an exploded view of the ventilation structure according to an embodiment of the present invention;

[0021] Fig. 4 This is a three-dimensional schematic diagram of the ventilation structure after concealing the front structural plate and ventilation grille in an embodiment of this utility model.

[0022] Meaning of the labels in the attached diagram:

[0023] 1-Front structural panel; 2-Rear structural panel; 3-Upper structural panel; 4-Ventilation grille; 4.1-Ventilation hole; 4.2-Second through hole; 5-Second connecting bolt; 6-Right-angle reinforcing plate; 7-Grill fixing plate; 7.1-Hollow opening; 7.2-First through hole; 7.3-Second threaded hole; 8-Cabinet fixing component; 8.1-Limiting block; 9-Right-angle connector; 9.1-First threaded hole; 10-Base plate; 11-First connecting bolt; 12-Tenon; 13-Rivet; 14-Ventilation expansion cavity. Detailed Implementation

[0024] The present invention will be further described below with reference to embodiments.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Example:

[0029] like Figs. 1 to 4 The diagram shows the ventilation structure for a cabin cabinet in a civil aircraft according to this embodiment. It mainly includes a ventilation expansion cavity 14, a grille fixing plate 7, and a ventilation grille 4. The cabinet is provided with a vertical front structural plate 1 and a rear structural plate 2.

[0030] The ventilation expansion cavity 14 is located at the bottom of the cabinet, between the front structural panel 1 and the rear structural panel 2. An upper structural panel 3 and a bottom panel 10 are respectively located above and below the ventilation expansion cavity 14. The two ends of the upper structural panel 3 and the bottom panel 10 are fixedly connected to the front structural panel 1 and the rear structural panel 2 via mortise and tenon joints. Specifically, the fixed connection structure is as follows: mortises 13 are provided on the inner sides of the front structural panel 1 and the rear structural panel 2; tenons 12 are provided at both ends of the upper structural panel 3 and the bottom panel 10, and the tenons 12 are inserted into the mortises 13.

[0031] One side of the ventilation expansion cavity 14 is an air inlet corresponding to the air vents of the aircraft cabin, and the other side is an air outlet. Right-angle connectors 9 are fixed to the inner sides of the front structural plate 1, rear structural plate 2, and upper structural plate 3 near the air outlets. The right-angle connectors 9 are made of bent steel plates, with one side fixed to the inner side of the front structural plate 1, rear structural plate 2, and upper structural plate 3 by fixing screws, and the other side having a first threaded hole 9.1. A recessed mounting position is formed at the air outlet of the ventilation expansion cavity 14, with the side of the upper structural plate 3 protruding above the recessed mounting position. A first through hole 7.2 is provided on the grille fixing plate 7 corresponding to the first threaded hole 9.1. The grille fixing plate 7 is embedded in the recessed mounting position and connected to the first threaded hole 9.1 by a first connecting bolt 11 passing through the first through hole 7.2, thereby detachably connecting the grille fixing plate 7 to the right-angle connector 9, and embedding the grille fixing plate 7 into the air outlet. When disassembly is required, the grille fixing plate 7 can be removed by removing the first connecting bolt 11.

[0032] A second threaded hole 7.3 is provided on the grille fixing plate 7, and a second through hole 4.2 is provided on the ventilation grille 4 corresponding to the second threaded hole 7.3. The ventilation grille 4 is positioned directly opposite the front of the grille fixing plate 7, and is connected to the second threaded hole 7.3 by a second connecting bolt 5 passing through the second through hole 4.2, thereby detachably installing the ventilation grille 4 on the grille fixing plate 7. When disassembly is required, the ventilation grille 4 can be removed by removing the second connecting bolt 5. The outer surface of the ventilation grille 4 is flush with the sides of the upper structural plate 3, the front structural plate 1, and the rear structural plate 2.

[0033] The grille fixing plate 7 has a hollow opening 7.1, and the ventilation grille 4 has multiple ventilation holes 4.1. The position of the hollow opening 7.1 corresponds to the position of the ventilation hole 4.1 on the ventilation grille 4.

[0034] In this embodiment, a right-angle reinforcing plate 6 is provided on one side of the upper structural plate 3 at the air outlet. The right-angle reinforcing plate 6 is attached and fixed to the upper right-angle side of the upper structural plate 3, and the right-angle reinforcing plate 6 and the upper structural plate 3 are fixedly connected by screws.

[0035] A cabinet fastener 8 is provided on the base plate 10, which is used to fix the cabinet to the floor of the aircraft cabin. When it is necessary to disassemble or assemble the cabinet, the cabinet fastener 8 on the base plate 10 can be operated by removing the ventilation grille 4 and the grille fixing plate 7, making disassembly and assembly convenient.

[0036] In this embodiment, the cabinet fastener 8 is a conventional component used to connect to the connecting rail on the passenger cabin floor of an aircraft. A limiting block 8.1 is provided below the cabinet fastener 8 to fit into the connecting rail.

[0037] In this embodiment, it will be set up as part of the cabinet. When the cabinet and the ventilation structure are fixed together to the cabin floor of the aircraft, the air inlet of the ventilation expansion cavity 14 of the ventilation structure will be directly in front of the air vent of the aircraft cabin, so that the ventilation expansion cavity 14 is connected to the air vent of the aircraft cabin. The air blown out of the air vent will pass through the ventilation expansion cavity 14 and then be blown out from the ventilation hole 4.1 of the ventilation grille 4. The ventilation expansion cavity 14 provides sufficient ventilation area in front of the air vent in the cabin.

[0038] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A ventilation structure for a cabinet in a civil aircraft cabin, the cabinet having a vertical front structural panel and a rear structural panel, the cabinet being fixedly connected to the aircraft cabin floor by cabinet fasteners, characterized in that: The ventilation structure includes a ventilation expansion cavity, a grille fixing plate, and a ventilation grille located at the bottom of the cabinet. The ventilation expansion cavity is situated between the front and rear structural plates. An upper structural plate and a bottom plate are respectively provided above and below the ventilation expansion cavity. The two ends of the upper structural plate and the bottom plate are fixedly connected to the front and rear structural plates. One side of the ventilation expansion cavity is an air inlet corresponding to the ventilation vent of the aircraft cabin. The grille fixing plate is detachably installed at the air outlet on the other side of the ventilation expansion cavity. The ventilation grille is detachably installed on the grille fixing plate. The cabinet fixing component is located on the bottom plate.

2. The ventilation structure for a cabin cabinet in a civil aircraft according to claim 1, characterized in that: The grille fixing plate and the ventilation grille are installed by embedding them into the air outlet of the ventilation expansion cavity. The outer surface of the ventilation grille is flush with the side edges of the upper structural plate, the front structural plate and the rear structural plate.

3. The ventilation structure for a cabin cabinet in a civil aircraft according to claim 1, characterized in that: The grille fixing plate is provided with a hollow opening, and the position of the hollow opening corresponds to the position of the ventilation hole on the ventilation grille.

4. The ventilation structure for a cabin compartment in a civil aircraft as described in claim 1, characterized in that: Right-angle connectors are fixed to the inner sides of the front structural plate, rear structural plate and upper structural plate near the air outlet, and the grille fixing plate is connected to the right-angle connectors by the first connecting bolt.

5. The ventilation structure for a cabin compartment in a civil aircraft according to claim 4, characterized in that: The ventilation grille is connected to the grille fixing plate by a second connecting bolt.

6. The ventilation structure for a cabin cabinet in a civil aircraft according to claim 1, characterized in that: The upper structural plate and the bottom plate are connected to the front structural plate and the rear structural plate at both ends by mortise and tenon joints.

7. The ventilation structure for a cabin cabinet in a civil aircraft according to claim 6, characterized in that: The inner sides of the front and rear structural plates are provided with mortises, and the two ends of the upper and bottom structural plates are provided with tenons, which are inserted into the mortises.

8. The ventilation structure for a cabin cabinet in a civil aircraft according to claim 1, characterized in that: A right-angle reinforcing plate is provided on one side of the upper structural plate at the air outlet, and the right-angle reinforcing plate is attached and fixed to the upper right-angle side of the upper structural plate.

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