阅读说明：本技术 一种簸箕形格栅通风装置 (Dustpan-shaped grille ventilation device ) 是由 周红 任恒英 刘虎平 于 2020-12-29 设计创作，主要内容包括：本申请提供一种簸箕形格栅通风装置,所述簸箕形格栅通风装置包括通风口(1),电动机构(2),格栅(3),加强区域(4),侧板(5),旋转轴(6),三角挡板(7),通风管(8),其中：通风口(1)为设置在飞机蒙皮的开口,通风管(8)为管状结构,通风管(8)用于连接通风口(1)和机载设备；通风口(1)内设置有相匹配的格栅(3)；格栅(3)所在面上设置有非镂空的加强区域(4)；格栅(3)的中部设置有旋转轴(6),所述侧板(5)为板状结构,侧板(5)一侧与格栅(3)一侧固定连接,侧板(5)可随旋转轴(6)旋转；所述三角挡板(7)为曲面板状结构。(The application provides a dustpan shape grid ventilation unit, dustpan shape grid ventilation unit includes vent (1), electric mechanism (2), grid (3), strengthens regional (4), curb plate (5), rotation axis (6), triangle baffle (7), ventilation pipe (8), wherein: the ventilation opening (1) is an opening arranged on the skin of the airplane, the ventilation pipe (8) is of a tubular structure, and the ventilation pipe (8) is used for connecting the ventilation opening (1) and airborne equipment; a matched grid (3) is arranged in the ventilation opening (1); a non-hollow-out reinforcing area (4) is arranged on the surface of the grating (3); a rotating shaft (6) is arranged in the middle of the grating (3), the side plate (5) is of a plate-shaped structure, one side of the side plate (5) is fixedly connected with one side of the grating (3), and the side plate (5) can rotate along with the rotating shaft (6); the triangular baffle (7) is of a curved plate-shaped structure.)

1. A dustpan-shaped grille ventilation device characterized in that it comprises a vent (1), an electric mechanism (2), a grille (3), a reinforcing area (4), side plates (5), a rotation shaft (6), a triangular baffle (7), a ventilation pipe (8), wherein:

the ventilation opening (1) is an opening arranged on the skin of the airplane, the ventilation pipe (8) is of a tubular structure, and the ventilation pipe (8) is used for connecting the ventilation opening (1) and airborne equipment; a matched grid (3) is arranged in the ventilation opening (1), and the grid (3) comprises a plurality of longitudinal grid leaves (3a) and a plurality of transverse grid leaves (3 b); a non-hollow-out reinforcing area (4) is arranged on the surface of the grating (3); a rotating shaft (6) is arranged in the middle of the grating (3), the side plate (5) is of a plate-shaped structure, one side of the side plate (5) is fixedly connected with one side of the grating (3), and the side plate (5) can rotate along with the rotating shaft (6); the triangular baffle (7) is of a curved plate-shaped structure, one end of the triangular baffle (7) is arranged at the ventilation opening (1), and the other end of the triangular baffle (7) is arranged at the position where the grille (3) is opened, so that airflow is prevented from flowing out of a triangular gap between the grille and the ventilation pipe when the grille (3) rotates to the opened position; one end of the electric mechanism (2) is connected with the reinforced area (4), and the other end of the electric mechanism (2) is connected with the position of the ventilation pipe (8) close to the ventilation opening (1).

2. The dustpan-shaped grille ventilation device according to claim 1, characterized in that the ventilation opening (1) is a single-sawtooth hexagonal shape.

3. The dustpan-shaped grille ventilation device according to claim 1, characterized in that the electric mechanism (2) can control the grille (3) and the side plates (5) to rotate around the rotating shaft (6) by a1, and the ventilation opening (1) is in an open position.

4. The dustpan-shaped grille ventilation device according to claim 3, characterized in that the inclination angle of the lateral grille (3b) to the face of the vent (1) is A2, 80 ° < A1+ A2<90 °, so that the angle of the lateral grille (3b) to the incoming flow is 90 ° when the vent is open.

5. The dustpan-shaped grille ventilation device according to claim 1, characterized in that the inclination angle of the longitudinal grille blade (3a) to the face where the ventilation opening (1) is located is 90 °.

6. The dustpan-shaped grille ventilation device of claim 3, wherein the A1 is in the range of 30 ° -60 °.

7. The dustpan-shaped grille ventilation device according to claim 1, characterized in that the adjacent two longitudinal (3a) and transverse (3b) louvers of the grille (3) form a mesh size of 5mm by 5 mm.

8. Dustpan-shaped grate ventilation device according to claim 1, characterized in that the cross-sectional size of the ventilation opening (1) is determined according to the air volume requirement of the airborne equipment.

Technical Field

The invention belongs to the field of aviation, and relates to a dustpan-shaped grille ventilation device.

Background

The aircraft needs to be provided with the ventilation opening to provide ventilation cooling airflow for a plurality of heating devices such as an engine and a generator, and the ventilation opening is required to have high air inlet efficiency, and for the stealth aircraft, the ventilation opening cannot destroy the stealth characteristic of the aircraft under the high-speed flight condition.

Disclosure of Invention

The invention aims to provide a dustpan-shaped grille ventilation device, which can efficiently provide ventilation airflow for an airplane under the condition of low-speed flight and can also give consideration to the stealth characteristic of the airplane under the condition of high-speed flight.

The application provides a dustpan shape grid ventilation unit, dustpan shape grid ventilation unit includes vent (1), electric mechanism (2), grid (3), strengthens regional (4), curb plate (5), rotation axis (6), triangle baffle (7), ventilation pipe (8), wherein:

the ventilation opening (1) is an opening arranged on the skin of the airplane, the ventilation pipe (8) is of a tubular structure, and the ventilation pipe (8) is used for connecting the ventilation opening (1) and airborne equipment; a matched grid (3) is arranged in the ventilation opening (1), and the grid (3) comprises a plurality of longitudinal grid leaves (3a) and a plurality of transverse grid leaves (3 b); a non-hollow-out reinforcing area (4) is arranged on the surface of the grating (3); a rotating shaft (6) is arranged in the middle of the grating (3), the side plate (5) is of a plate-shaped structure, one side of the side plate (5) is fixedly connected with one side of the grating (3), and the side plate (5) can rotate along with the rotating shaft (6); the triangular baffle (7) is of a curved plate-shaped structure, one end of the triangular baffle (7) is arranged at the ventilation opening (1), and the other end of the triangular baffle (7) is arranged at the open position of the grille (3) and is used for preventing airflow from flowing out of a triangular gap between the grille and the ventilation pipe when the grille (3) rotates; one end of the electric mechanism (2) is connected with the reinforced area (4), and the other end of the electric mechanism (2) is connected with the position of the ventilation pipe (8) close to the ventilation opening (1).

Specifically, the vent (1) is in a single sawtooth hexagon shape.

Specifically, the electric mechanism (2) can control the grille (3) and the side plate (5) to rotate around the rotating shaft (6) A1, and the ventilation opening (1) is in an open position.

Specifically, the inclination angle of the transverse grating (3b) and the surface of the vent (1) is A2, 80 degrees < A1+ A2<90 degrees, so that when the vent is in an open position, the included angle between the transverse grating (3b) and the incoming flow is close to 90 degrees.

Specifically, the inclination angle of the surface of the longitudinal grid blade (3a) and the vent (1) is 90 degrees.

Specifically, the A1 is in the range of 30-60 degrees.

Specifically, the mesh formed by two adjacent longitudinal grid leaves (3a) and transverse grid leaves (3b) of the grid (3) is 5mm by 5 mm.

Specifically, the cross section size of the ventilation opening (1) is determined according to the air volume requirement of airborne equipment.

To sum up, the application provides a dustpan shape grid ventilation unit, dustpan shape grid ventilation unit through the rotation angle of reasonable collocation grid and the inclination of grid for the vent can be opened, can close, and the vent homoenergetic provides the ventilation air current for the aircraft when opening the position and closing moreover.

Drawings

Fig. 1 is a view showing the overall arrangement of a dustpan-shaped grille ventilation apparatus provided by the present invention;

FIG. 2 is a schematic structural view of a dustpan-shaped grille ventilation device provided by the invention;

FIG. 3 is a schematic view of the structure of the grid provided by the present invention;

fig. 4 is a schematic structural diagram of the triangular baffle provided by the invention.

Wherein: 1-ventilation opening, 2-electric mechanism, 3-grating, 4-reinforced area, 5-side plate, 6-rotating shaft, 7-triangular baffle plate and 8-ventilation pipe.

Detailed Description

The dustpan shaped grille ventilating device of the present invention is further described below with reference to the attached drawings of the specification:

as shown in fig. 1-2, a schematic view of a dustpan-shaped grille ventilation device of the present invention is shown, the ventilation device including: the device comprises a ventilation opening (1), an electric mechanism (2), a grating (3), a reinforced area (4), a side plate (5), a rotating shaft (6), a triangular baffle plate (7) and a ventilation pipe (8); the ventilation device of the invention controls the rotation of the grating around the rotating shaft by the electric mechanism, the maximum rotation angle of the grating is 45 degrees, and the inclination angle of the transverse grating leaf of the grating is 45 degrees. Under the low-speed flight conditions of takeoff, landing and the like, the grating rotates 45 degrees clockwise around the rotating shaft, the grating and the side plate form a dustpan-shaped vent protruding out of the aircraft skin, and the vent is in an open position, so that the air inlet efficiency can be improved. Meanwhile, the included angle between the transverse grid leaves of the grid and the incoming flow is 90 degrees, and the air flow can be prevented from sliding away through the gaps of the grid. The triangular baffle can prevent airflow from flowing out of a triangular gap between the grille and the ventilation pipe; under high-speed flight conditions such as cruising and patrol, the grille rotates 45 degrees anticlockwise around the rotating shaft, and the vent is in an off position so as to avoid damaging the stealth characteristic of the airplane. At this point, the angle between the grille and the incoming flow is 45 °, and ambient air flows through the grille gap to provide ventilation for the aircraft.

Specifically, the vent (1) is in a single sawtooth hexagon shape.

Specifically, the inclination angle of the transverse grating (3b) is 45 degrees.

Specifically, the electric mechanism (2) can control the grating (3) and the side plates (5) to rotate 45 degrees around the rotating shaft (6).

One side of the side plate (5) is fixedly connected with the grating (3). When the ventilation opening is in a closed position, the other side of the side plate (5) is suspended in the air; when the ventilation opening is in an open position, the other side of the side plate (5) is in contact with the ventilation opening (1) but is not connected.

Specifically, under the low-speed flight conditions such as take-off and landing, when the grating (3) and the side plates (5) rotate clockwise by 45 degrees around the rotating shaft (6), the air vents are in open positions, and the air intake efficiency can be improved.

Specifically, when the vent is opened, the included angle between the transverse grid blade (3b) and the incoming flow is 90 degrees, so that the air flow can be prevented from sliding away through the grid gap.

It should be noted that the reinforced areas (4) are used to bear the aerodynamic loads on the grille and the side panels when the ventilation openings are in the open position.

Specifically, when the vent is in an open position, the triangular baffle (7) can prevent airflow from flowing out of a triangular gap between the grille (3) and the ventilation pipe (8).

As shown in fig. 4, one side of the triangular baffle plate (7) is fixedly connected to the vent (1). When the vent is in a closed position, the other side of the triangular baffle (7) is suspended; when the vent is in an open position, one side of the triangular baffle (7) is in contact with the grille (3) but is not connected.

Specifically, under high-speed flight conditions such as cruising and patrol, the ventilation opening is in the closed position when the grating (3) and the side plate (5) rotate 45 degrees anticlockwise around the rotating shaft (6), so that the stealth characteristic of the airplane can be prevented from being damaged.

Specifically, as shown in fig. 3, when the vent is in the closed position, the included angle between the transverse grid leaf (3b) and the incoming flow is 45 degrees, and the external air flows through the gap of the grid (3) to provide ventilation for the airplane.

Therefore, the invention is suitable for the ventilation system of the stealth aircraft, and the dustpan-shaped grille ventilation device can provide ventilation for the aircraft in both the open position and the closed position, so that the number and the size of the openings are reduced, and the stealth characteristic of the aircraft is not damaged.