阅读说明：本技术 一种集成通风排水功能的口盖 (Flap integrating ventilation and drainage functions ) 是由 范光华 程小青 郑俊锋 陶国敏 杨东雷 于 2019-10-11 设计创作，主要内容包括：本发明属于直升机结构设计领域,具体涉及一种集成通风排水功能的口盖。包括口盖主体和前端尖后端宽的异型进风口组件；所述口盖主体中间开有与前端尖后端宽的异型进风口组件外形匹配的三角形通孔和排水管口；前端尖后端宽的异型进风口组件安装在三角形通孔内,所述前端尖后端宽的异型进风口组件上设有出风口；外部空气经口盖主体上的三角形进风口进气,经前端尖后端宽的异型进风口组件导流后,由出风口进入环控通气管路中；口盖主体的排水管口与排水管连通。本发明既能提高通风、进风效率,又能防止大颗粒杂质和机体外雨水进入机体结构内部。(The invention belongs to the field of structural design of helicopters, and particularly relates to a cover cap integrating ventilation and drainage functions. Comprises a cover body and a special-shaped air inlet assembly with the front end pointed and the rear end wide; the middle of the cover cap main body is provided with a triangular through hole and a drainage pipe orifice which are matched with the special-shaped air inlet assembly with the sharp front end and the wide rear end in shape; the special-shaped air inlet assembly with the sharp front end and the wide rear end is arranged in the triangular through hole, and an air outlet is formed in the special-shaped air inlet assembly with the sharp front end and the wide rear end; external air enters through a triangular air inlet on the cover body, is guided by a special-shaped air inlet assembly with a sharp front end and a wide rear end, and then enters the environment-controlled ventilation pipeline through an air outlet; the drain pipe mouth of the flap main body is communicated with a drain pipe. The invention can improve the ventilation and air intake efficiency and prevent large particle impurities and rainwater outside the machine body from entering the interior of the machine body structure.)

1. The utility model provides an integrated ventilation drainage function's flap which characterized in that: comprises a cover body and a special-shaped air inlet assembly with the front end pointed and the rear end wide; the middle of the cover cap main body is provided with a triangular through hole and a drainage pipe orifice which are matched with the special-shaped air inlet assembly with the sharp front end and the wide rear end in shape; the special-shaped air inlet assembly with the sharp front end and the wide rear end is arranged in the triangular through hole, and an air outlet is formed in the special-shaped air inlet assembly with the sharp front end and the wide rear end; external air enters through a triangular air inlet on the cover body, is guided by a special-shaped air inlet assembly with a sharp front end and a wide rear end, and then enters the environment-controlled ventilation pipeline through an air outlet; the drain pipe mouth of the flap main body is communicated with a drain pipe.

2. The integrated ventilation drain flap of claim 1, wherein: the special-shaped air inlet assembly with the sharp front end and the wide rear end is formed by combining a first air inlet flow guide piece and a second air inlet flow guide piece.

3. The integrated ventilation and drainage port cover according to claim 1 or 2, wherein: an isolation net for isolating large particles is arranged between the air inlet and the air outlet of the special-shaped air inlet assembly with the sharp front end and the wide rear end.

4. The integrated ventilation drain flap of claim 3, wherein: the isolation net is of an aluminum alloy net structure and is riveted at the widest part of the special-shaped air inlet assembly with a sharp front end and a wide rear end.

5. The integrated ventilation drain flap of claim 1, wherein: the cover body is a composite material honeycomb component formed at high temperature.

6. The integrated ventilation drain flap of claim 1, wherein: the air outlet is connected with an aircraft environment-controlled ventilation pipeline through an air outlet adapter flange.

7. The integrated ventilation drain flap of claim 1, wherein: the water outlet pipe orifice is connected with the water outlet pipeline through an annular rubber piece clamped on the opening cover.

8. The integrated ventilation drain flap of claim 1, wherein: and a sealing rubber strip is further bonded on the edge of the opening cover main body, and a plurality of mounting holes are formed in the sealing rubber strip and used for mounting and fixing the opening cover.

9. The integrated ventilation drain flap of claim 8, wherein: when the cover body is fixedly installed, the two covers are symmetrically installed on two sides of the bottom of the engine body cabin.

10. The integrated ventilation drain flap of claim 1, wherein: the cover body and the special-shaped air inlet assembly with the sharp front end and the wide rear end are both formed by honeycomb and glass cloth composite materials.

Technical Field

The invention belongs to the field of structural design of helicopters, and particularly relates to a cover cap integrating ventilation and drainage functions.

Background

The helicopter port cover acts as a port for the visual maintenance of the removable equipment, sealing the equipment within the body structure. Usually, the opening cover is not provided with a port communicated with the outside, but if equipment in the machine body structure needs ventilation and cooling or an environmental control system needs air inlet, the opening cover is generally required to be provided with an opening. If the opening is directly arranged on the opening cover, the ventilation and air inlet efficiency is low, and large particle impurities outside the machine body can influence equipment in the machine body, so that the sealing effect cannot be achieved. To improve the ventilation and air intake efficiency and to isolate large particle impurities outside the machine body, the opening of the mouth cover needs to be designed and processed to a certain degree.

Disclosure of Invention

The purpose of the invention is as follows: the utility model provides a flap of integrated ventilation drainage function to improve ventilation, air inlet efficiency, large granule impurity in the while can also filtered air.

The technical scheme of the invention is as follows: a cover cap integrating ventilation and drainage functions comprises a cover cap body and a special-shaped air inlet assembly, wherein the special-shaped air inlet assembly is sharp at the front end and wide at the rear end; the middle of the cover cap main body is provided with a triangular through hole and a drainage pipe orifice which are matched with the special-shaped air inlet assembly with the sharp front end and the wide rear end in shape; the special-shaped air inlet assembly with the sharp front end and the wide rear end is arranged in the triangular through hole, and an air outlet is formed in the special-shaped air inlet assembly with the sharp front end and the wide rear end; external air enters through a triangular air inlet on the cover body, is guided by a special-shaped air inlet assembly with a sharp front end and a wide rear end, and then enters the environment-controlled ventilation pipeline through an air outlet; the drain pipe mouth of the flap main body is communicated with a drain pipe.

The special-shaped air inlet assembly with the sharp front end and the wide rear end is formed by combining a first air inlet flow guide piece and a second air inlet flow guide piece, a sand control net for isolating large particles is arranged between an air inlet and an air outlet of the special-shaped air inlet assembly with the sharp front end and the wide rear end, and the sand control net is fixedly connected to the air inlet assembly.

The invention has the beneficial effects that: (1) the cover is connected to the machine body structure by a quick-release screw, so that the cover is convenient to detach;

(2) the special-shaped air inlet can improve the ventilation and air inlet efficiency and prevent large granular impurities and rainwater outside the machine body from entering the machine body structure;

(3) the water outlet is an annular rubber snap ring, so that the water discharge pipe is convenient to disassemble;

(4) the installing verification shows that the opening cover has good ventilation, sand prevention and water drainage effects.

Drawings

FIG. 1 is a schematic view of the structure of the present invention,

Figure 2 is a schematic view of the installation of the invention on a machine body,

figure 3 is a disassembled schematic view of the present invention,

figure 4 is a view of the invention from direction a,

description of numbering: 1-a cover body, 2-a special-shaped air inlet assembly with a sharp front end and a wide rear end, 21-a first air inlet guide part, 22-a second air inlet guide part, 23-a sand-proof net, 3-an annular rubber part, 4-a connecting screw, 5-a sealing rubber strip and 6-an air outlet adapter flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-4, the cover with the ventilation and drainage functions can prevent particle impurities from entering the interior of a machine body while ensuring ventilation and air inlet efficiency, the cover comprises a cover main body 1 and a special-shaped air inlet assembly 2 with the front end pointed and the rear end wide, a drainage pipe opening is reserved on the cover main body 1, equipment with drainage requirements can be connected to the drainage pipe opening through a drainage pipe to achieve the purpose of drainage, and the cover main body 1 is structurally connected with the machine body through a sealing rubber strip 5 and a quick-release screw to play a role in sealing.

The mouth cover main body 1 in the structure is a composite material honeycomb component formed at high temperature.

The special-shaped air inlet component 2 with a sharp front end and a wide rear end in the structure comprises a first air inlet flow guide part 21, a second air inlet flow guide part 22 and a sand control net 23, wherein the first air inlet flow guide part 21 and the second air inlet flow guide part 22 are of laminated structures formed by composite materials, and the sand control net 23 is of an aluminum alloy net structure and is riveted at the widest part of the air inlet component 2;

after the first air inlet flow guide part 21 and the second air inlet flow guide part 22 are combined, an air outlet is formed at the upper edge of the tail section, and the air outlet is connected with an airplane environment-controlled ventilation pipeline through an air outlet adapter flange 6.

In the structure, the cover body 1, the special-shaped air inlet assembly 2 with the sharp front end and the wide rear end and the air outlet adapter flange 6 are formed by medium-temperature glue joint, so that the sealing performance is ensured.

In the structure, the opening cover body 1 is also provided with a water discharge pipe opening which is connected with a water outlet pipeline through the annular rubber part 3 clamped on the opening cover.

Sealing rubber strip 5 connects at the edge of flap main part 1 through the glue for the sealed of flap main part 1 is provided with a plurality of screw holes on sealing rubber strip 5, is used for being connected of flap main part and organism structure.

The cover body 1 is connected to the structural skin of the machine body by screws 4 and sealing rubber strips 5 and is provided with a triangular air inlet and a circular water outlet. The mouth cover main body 1 and the air inlet assembly 2 which are formed by composite materials comprise 21-a first air inlet guide part and 22-a second air inlet guide part; after high-temperature molding, medium-temperature cementing and co-curing are carried out respectively, the sand-proof net 23 is riveted at the rectangular opening of the air inlet component 2, and the annular rubber part 3 is clamped on the water outlet of the opening cover main body 1. Except the sand control net and the sealing rubber strip, other components are all formed by honeycomb and glass cloth composite materials, and the obtained opening cover is good in rigidity and light in weight.

The cover plates with the functions of ventilation and drainage are symmetrically arranged on two sides of the bottom of the engine body cabin, so that air inflow and air inflow efficiency are guaranteed.

The working principle is as follows: in the flying process of the airplane, external air enters through the triangular air inlet on the opening cover main body, is guided by the special-shaped air inlet assembly with the sharp front end and the wide rear end, and then enters the environment-controlled ventilation pipeline after being filtered by the sand control net.

The foregoing is merely a detailed description of the embodiments of the present invention, and some of the conventional techniques are not detailed. The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.