CN211223834U - Waterproof sealing structure of aircraft radar cabin - Google Patents
Waterproof sealing structure of aircraft radar cabin Download PDFInfo
- Publication number
- CN211223834U CN211223834U CN201921818677.0U CN201921818677U CN211223834U CN 211223834 U CN211223834 U CN 211223834U CN 201921818677 U CN201921818677 U CN 201921818677U CN 211223834 U CN211223834 U CN 211223834U
- Authority
- CN
- China
- Prior art keywords
- sealing strip
- frame
- sealing
- aircraft
- radar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Aerials (AREA)
Abstract
The utility model provides an aircraft radar cabin waterproof sealing structure, the radar cabin is located the aircraft nose position of aircraft, and the butt joint of radar cover mouthful frame and aircraft nose frame is equipped with the round sealing strip at the butt joint position that the aircraft nose frame corresponds radar cover mouthful frame, and this sealing strip adopts P type cross-section, and the upper end of sealing strip is the sealed annular seal head, and the lower extreme of sealing strip is platelike connection tail, and the connection tail of sealing strip is fixed on the web of aircraft nose frame with the clamp plate.
Description
Technical Field
The application relates to an aircraft design technology, in particular to a waterproof sealing structure and a sealing method for an aircraft radar cabin.
Background
According to the requirements of a road map, a view enhancement system (EVS) needs to be installed on a civil airplane in 2025 years, so that the upper part of a nose radome installation frame of the airplane needs to be obliquely cut, a radome with an oblique cutting angle is the most commonly used radome at present, and a sectional sealing strip is usually adopted for sealing between the radome and an airplane body, so that the sealing effect is poor, and certain influence is brought to the normal operation of a radar in a radar cabin.
Disclosure of Invention
The utility model provides an aircraft radar cabin seal structure to improve aircraft nose radar cabin's sealed effect, thereby satisfy the needs of model development.
A waterproof sealing structure of an aircraft radar cabin is characterized in that a circle of sealing strip is arranged at the butt joint part of the aircraft nose frame corresponding to the radar cover opening frame, the sealing strip adopts a P-shaped cross section, the upper end of the sealing strip is a closed annular sealing head, the lower end of the sealing strip is a platy connection tail, and the connection tail of the sealing strip is fixed on a web plate of the aircraft nose frame by a pressing plate.
The machine head frame web plate is provided with a plurality of sectional type pressing plates, the cross sections of the pressing plates are Z-shaped, the pressing plates and the machine head frame web plate form a mounting groove of a sealing belt, and a connection tail of the sealing belt is inserted in the mounting groove.
A conical cushion angle piece is arranged at the joint of the straight frame and the inclined frame of the machine head frame, so that a straight frame web and an inclined frame web of the machine head frame are in smooth transition.
When the radome is closed, the gap between the reinforcing opening frame and the machine head frame on the radome is used for ensuring the appropriate compression amount of the annular sealing head of the sealing strip, so that the waterproof function is realized.
The beneficial effect of this application lies in: 1) this application simple structure is compact, maintain easy dismounting. 2) Sealing belts at the corners of the straight frame surface and the inclined frame surface are complete, smooth transition in different compression directions is realized by utilizing the circular cross section, and sealing and water proofing at the positions are improved. 3) The sealing tape has simple section form and can be installed without being adhered to the frame. 4) The waterproof effect is excellent.
The present application is described in further detail below with reference to the accompanying drawings of embodiments.
Drawings
Fig. 1 is a schematic view of a waterproof sealing structure of an aircraft radar bay according to the present application.
Figure 2 is a schematic view of the sealing band mated to the nose block.
Fig. 3 is a schematic view of the sealing tape and the head frame assembly.
FIG. 4 is a schematic view of the attachment of the sealing band to the head frame and platen.
Fig. 5 is a schematic view of the structure in which the sealing band is compressed by the radar hatch frame.
Fig. 6 is a schematic view of a V-notch on the sealing band tail.
Fig. 7 is a schematic view of the closure of the V-notch on the tail of the connection when the sealing tape is installed.
Schematic cross section and compression mode.
The numbering in the figures illustrates: 1 handpiece frame, 2 sealing belts, 3 pressing plates, 4 radomes, 5 radomes opening frames, 6 straight face frames, 7 inclined face frames, 8 gaps, 9 conical pad angles, 10 gaps and 11 handpieces.
Detailed Description
Referring to the drawings, the waterproof and sealing structure of the aircraft radar chamber of the application is shown in the figures, the radar chamber is positioned at the front end of a nose 11 of the aircraft, a radar cover 4 is butted with a nose frame 1 of the aircraft through a radar cover opening frame 5, the nose frame 1 in the embodiment is an irregular annular frame, the lower part of the irregular annular frame is a straight frame 6, and the upper part of the irregular annular frame is a bevel frame 7. A circle of sealing strip 2 is arranged at the butt joint part of the nose frame 1 corresponding to the radome mouth frame 5, the sealing strip 2 adopts a P-shaped section, the upper end of the sealing strip is a closed annular sealing head, the lower end of the sealing strip is a plate-shaped connection tail, and the connection tail of the sealing strip 2 is fixed on a web plate of the nose frame by a pressing plate 3.
The sealing belt 2 is a pure silicon rubber sealing belt without surface fabric, the middle part is free from joints, two ends of the sealing belt 2 are butted at the lower end of the machine head frame, two ends of the sealing belt 2 are provided with butting gaps 8, and the gaps 8 realize the exhaust of the sealing belt and the discharge of condensed water in the sealing belt. The gap 8 is controlled within the range of 5 mm-10 mm.
In the implementation, for the convenience of installation, the pressing plate 3 may be a segmented structure, as shown in fig. 3, a plurality of segmented pressing plates 3 are provided on the web of the head frame 1, the cross section of the pressing plate 3 is Z-shaped, the pressing plate 3 and the web of the head frame 1 form a mounting groove of the sealing band 2, and the tail of the sealing band 2 is inserted into the mounting groove. The number of the sections of the pressing plate 3 is not limited, and the sealing belt is compressed and construction is facilitated.
In order to enable the straight frame 6 and the inclined frame 7 of the machine head frame 1 to be smoothly butted and improve the sealing degree, a tapered pad angle 9 is arranged at the joint of the straight frame 6 and the inclined frame 7 of the machine head frame 1 in the implementation process, so that a straight frame web and an inclined frame web of the machine head frame are in smooth transition, and the assembly of the sealing belt 2 is facilitated.
Because the machine head frame 1 is an irregular annular structure, the sealing belt is a pure silicon rubber sealing belt without surface fabric, in order to match the sealing belt with the annular machine head frame, a V-shaped notch can be cut on the connecting tail of the sealing belt, the notch only cuts the plate-shaped connecting tail at the lower end of the sealing belt, the annular sealing head at the upper end of the sealing belt cannot be damaged, and the sealing belt is bent to match with the annular structure of the machine head frame after the cut V-shaped notch is butted.
When the sealing strip is installed, each section of the sealing strip pressing plate 3 is connected and positioned at a preset position through the support plate nuts at two ends, then the sealing strip 2 is placed under the pressing plate along the moving direction of the pressing plate 3, the V-shaped notch 10 is partially cut on the sealing strip during placement so as to ensure flatness, and then other bolts are connected so as to ensure reliable positioning of the sealing strip 2. The sealing belts are butted at the lowest ends, the gap between the butt joints is 5mm,
after closing radome 4, the clearance of inspection radome 4 and aircraft nose frame 1 guarantees that radome mouthful frame 4 and aircraft nose frame 1 are even to the compression of sealing band 2.
When the sealing tape 2 needs to be replaced, the sealing tape pressing plate 3 is only needed to be removed, the aged sealing tape 2 is taken down, and the sealing tape is replaced by a new sealing tape in the manner described above.
Claims (4)
1. A waterproof sealing structure of an aircraft radar cabin is characterized in that a circle of sealing strip is arranged at the butt joint part of the aircraft nose frame corresponding to the radar cover opening frame, the sealing strip adopts a P-shaped cross section, the upper end of the sealing strip is a closed annular sealing head, the lower end of the sealing strip is a platy connection tail, and the connection tail of the sealing strip is fixed on a web plate of the aircraft nose frame by a pressing plate.
2. The waterproof and sealing structure of an aircraft radar cabin according to claim 1, wherein a plurality of segmented pressing plates are provided on the nose frame web, the cross section of each pressing plate is Z-shaped, the pressing plates and the nose frame web form a mounting groove of the sealing strip, and the connection tail of the sealing strip is pressed in the mounting groove.
3. An aircraft radar chamber waterproof and sealing structure as claimed in claim 2, wherein the joint of the straight frame and the inclined frame of the nose frame is provided with a tapered fillet member, so that the straight frame web and the inclined frame web of the nose frame are in smooth transition.
4. The waterproof and sealing structure of an aircraft radar cabin according to claim 1, wherein said sealing strip is a jointless sealing strip, the two ends of the sealing strip are butted against the lower end of the nose frame, and the two ends of the sealing strip are butted with a gap, which allows the air discharge of the sealing strip and the drainage of the condensed water inside the sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818677.0U CN211223834U (en) | 2019-10-25 | 2019-10-25 | Waterproof sealing structure of aircraft radar cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818677.0U CN211223834U (en) | 2019-10-25 | 2019-10-25 | Waterproof sealing structure of aircraft radar cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211223834U true CN211223834U (en) | 2020-08-11 |
Family
ID=71926359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921818677.0U Active CN211223834U (en) | 2019-10-25 | 2019-10-25 | Waterproof sealing structure of aircraft radar cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211223834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775247A (en) * | 2019-10-25 | 2020-02-11 | 中航西飞民用飞机有限责任公司 | Waterproof sealing structure and sealing method for aircraft radar cabin |
-
2019
- 2019-10-25 CN CN201921818677.0U patent/CN211223834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775247A (en) * | 2019-10-25 | 2020-02-11 | 中航西飞民用飞机有限责任公司 | Waterproof sealing structure and sealing method for aircraft radar cabin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211223834U (en) | Waterproof sealing structure of aircraft radar cabin | |
| CN102416853B (en) | Vehicle door edge inflation sealing structure | |
| CN110775247A (en) | Waterproof sealing structure and sealing method for aircraft radar cabin | |
| CN202243470U (en) | Installing structure of water tank detachable cover on roof of railway vehicle | |
| CN208411732U (en) | A kind of rail vehicle glass fitting structure | |
| CN201140731Y (en) | Seeper preventing structure on top of carriage | |
| CN204821577U (en) | Windshield mounting structure | |
| CN211474133U (en) | Tunnel lining structure seam that two-sided self-adhesion waterproof adhesive tape handled | |
| CN211285721U (en) | Stagnant water steel sheet piece structure | |
| CN214565365U (en) | Urban rail vehicle emergency evacuation door sealing structure | |
| CN218317344U (en) | Large-size detachable wallboard binding face sealing structure of integral oil tank | |
| CN111022126A (en) | Rotor sealing vibration reduction structure | |
| CN208778692U (en) | A kind of flange sealing structure suitable for high-voltaghe compartment maintenance | |
| CN206373144U (en) | Seal cutter shaft dust shield | |
| CN204123933U (en) | Automotive back window frame | |
| CN210118495U (en) | Combined valve rubber | |
| CN215633035U (en) | Geomembrane for tunnel seepage control | |
| CN110778344A (en) | Shield tunnel segment seam waterproof construction | |
| CN212657230U (en) | Sealing opening cover | |
| CN219969987U (en) | Unmanned aerial vehicle wing leading edge detachable structure oil tank | |
| CN204606197U (en) | A kind of quick-release nail fixing port cap sealing | |
| CN214460211U (en) | Gate sealing assembly | |
| CN217632491U (en) | Three-arch special-shaped section waterproof structure | |
| CN214999367U (en) | Sealing opening structure forming device | |
| CN217056297U (en) | Sealing device of closed equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |