CN217624076U - Fixed wing unmanned aerial vehicle combination formula roof beam - Google Patents
Fixed wing unmanned aerial vehicle combination formula roof beam Download PDFInfo
- Publication number
- CN217624076U CN217624076U CN202221986956.XU CN202221986956U CN217624076U CN 217624076 U CN217624076 U CN 217624076U CN 202221986956 U CN202221986956 U CN 202221986956U CN 217624076 U CN217624076 U CN 217624076U
- Authority
- CN
- China
- Prior art keywords
- edge strip
- laminated plate
- foam block
- lower edge
- upper edge
- 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
- Laminated Bodies (AREA)
Abstract
The utility model provides a fixed wing unmanned aerial vehicle combination formula roof beam belongs to unmanned aerial vehicle parts technical field, especially relates to a fixed wing unmanned aerial vehicle combination formula roof beam. The utility model provides a fixed wing unmanned aerial vehicle combination formula roof beam that excellent in use effect. The utility model comprises an upper edge strip 1, a lower edge strip 2, a front edge web 3, a rear edge web 4, a front side foam block 5, a rear side foam block 25 and an I-beam 6, and is characterized in that the front side foam block 5 is arranged at the front side of the I-beam 6, the rear side foam block 25 is arranged at the rear side of the I-beam 6, the front edge web 3 is arranged at the front end of the front side foam block 5, and the rear edge web 4 is arranged at the rear end of the rear side foam block 25; the upper edge strip 1 is arranged at the upper ends of the front edge web 3, the front side foam block 5, the I-shaped beam 6, the rear side foam block 25 and the rear edge web 4, and the lower edge strip 2 is arranged at the lower ends of the front edge web 3, the front side foam block 5, the I-shaped beam 6, the rear side foam block 25 and the rear edge web 4.
Description
Technical Field
The utility model belongs to the technical field of the unmanned aerial vehicle part, especially, relate to a fixed wing unmanned aerial vehicle combination formula roof beam.
Background
Fixed wing uavs have obtained extensive application in fields such as survey and drawing, geology, oil, agriculture and forestry because of its good function. At present, the fixed wing unmanned aerial vehicle develops towards the direction of high aspect ratio to meet the requirements of the industry and the market, and higher requirements are provided for the specific modulus and the specific strength of the fixed wing bearing structural beam. The traditional fixed wing unmanned aerial vehicle beam is of a balsa wood structure, has the defects of poor bearing capacity, easy damage and complex manufacturing process, and can not meet the development requirement of the fixed wing unmanned aerial vehicle.
SUMMERY OF THE UTILITY MODEL
The utility model discloses be exactly to above-mentioned problem, provide a fixed wing unmanned aerial vehicle combination formula roof beam that excellent in use effect.
In order to achieve the purpose, the utility model adopts the following technical scheme that the utility model comprises an upper edge strip 1, a lower edge strip 2, a front edge web 3, a rear edge web 4, a front side foam block 5, a rear side foam block 25 and an I-beam 6, and is characterized in that the front side foam block 5 is arranged at the front side of the I-beam 6, the rear side foam block 25 is arranged at the rear side of the I-beam 6, the front edge web 3 is arranged at the front end of the front side foam block 5, and the rear edge web 4 is arranged at the rear end of the rear side foam block 25;
the upper edge strip 1 is arranged at the upper ends of the front edge web 3, the front side foam block 5, the I-shaped beam 6, the rear side foam block 25 and the rear edge web 4, and the lower edge strip 2 is arranged at the lower ends of the front edge web 3, the front side foam block 5, the I-shaped beam 6, the rear side foam block 25 and the rear edge web 4.
As a preferred scheme, front side foam block 5 and rear side foam block 25 adopt the PMI foam block.
As another preferred scheme, the cross-section of front side foam piece 5 and rear side foam piece 25 is the type of a letter arch that corresponds with I-beam 6.
As another preferred scheme, the utility model discloses 6 tip central lines of I-beam pass through 1 tip mid point of upper flange strip and 2 tip mid points of lower flange strip.
As another preferred scheme, the front edge web 3, front side foam piece 5, i-beam 6, rear side foam piece 25 and the up end of trailing edge web 4 are on same plane, and the lower terminal surface of front edge web 3, front side foam piece 5, i-beam 6, rear side foam piece 25 and trailing edge web 4 is on same plane.
As another preferred scheme, the cross section of the upper edge strip 1 of the utility model is in a shape of a v 2127474with an opening facing downwards, the upper end of the front edge web 3 is arranged at the inner side of the front lower bent edge of the upper edge strip 1, and the upper end of the rear edge web 4 is arranged at the inner side of the rear lower bent edge of the upper edge strip 1;
the section of the lower edge strip 2 is shaped like a Chinese character 'wu21274', the opening of which is upward, the lower end of a front edge web plate 3 is arranged at the inner side of the front upper bent edge of the lower edge strip 2, and the lower end of a rear edge web plate 4 is arranged at the inner side of the rear upper bent edge of the lower edge strip 2.
As another preferable solution, the upper edge strip 1 of the present invention includes an upper edge strip center laminated plate 14, wherein a plurality of upper edge strip laminated plates are symmetrically disposed at upper and lower ends of the upper edge strip center laminated plate 14, the length of each upper edge strip laminated plate is gradually reduced from the side close to the upper edge strip center laminated plate 14 to the side far from the upper edge strip center laminated plate 14, the center lines of the upper edge strip center laminated plate 14 and each upper edge strip laminated plate are on the same vertical plane, and the upper edge strip center laminated plate 14 and each upper edge strip laminated plate are parallel to each other;
the lower edge strip 2 comprises a lower edge strip center laminated plate 19, a plurality of lower edge strip laminated plates are symmetrically arranged at the upper end and the lower end of the lower edge strip center laminated plate 19, the length of each lower edge strip laminated plate is gradually reduced from the side close to the lower edge strip center laminated plate 19 to the side far away from the lower edge strip center laminated plate 19, the center lines of the lower edge strip center laminated plate 19 and each lower edge strip laminated plate are on the same vertical plane, and the lower edge strip center laminated plate 19 and each lower edge strip laminated plate are parallel to each other.
As another preferable scheme, the profile of the rear long side of the upper edge strip center laminated plate 14 and the lower edge strip center laminated plate 19 of the present invention is a rear straight line segment; the front long side profile of the upper edge strip center laminated plate 14 and the lower edge strip center laminated plate 19 comprises a front straight line section in the middle, and two ends of the front straight line section are connected with the front ends of the inclined line sections symmetrically arranged on two sides; the outlines of the two ends of the upper edge strip center laminated plate 14 and the lower edge strip center laminated plate 19 are front-back oriented end straight line segments, the front ends of the end straight line segments are connected with the rear ends of the oblique line segments, and the rear ends of the end straight line segments are connected with the end parts of the rear straight line segments; the front straight line segment is parallel to the rear straight line segment;
the front and rear long side profiles of each upper edge strip laminated plate correspond to the front and rear long side profiles of the upper edge strip central laminated plate 14; the front long side contour of the outermost upper edge strip laminated plate coincides with the front straight line section in the front long side contour of the upper edge strip center laminated plate 14; the contour lines of the two ends of each upper edge strip laminated plate are parallel to the contour lines of the two ends of the upper edge strip central laminated plate 14;
the front and rear long side profiles of the respective lower strip laminates correspond to the front and rear long side profiles of the lower strip center laminate 19; the front side long edge profile of the outermost lower edge strip laminated plate is superposed with the front straight line segment in the front side long edge profile of the lower edge strip center laminated plate 19; the outline of both ends of each lower edge strip laminated plate is parallel to the outline of both ends of the lower edge strip center laminated plate 19.
As another preferred scheme, the utility model discloses end straightway is perpendicular with back straightway.
As another preferable scheme, the connection line between the end of the outermost upper edge strip laminated plate and the end of the upper edge strip central laminated plate 14 passes through the end of each upper edge strip laminated plate on the side; the line connecting the end of the outermost lower bead laminate with the end of the lower bead center laminate 19 passes through the end of each lower bead laminate on that side.
Secondly, the upper end and the lower end of the upper edge strip center laminated plate 14 of the utility model are respectively provided with seven upper edge strip laminated plates 7-13, and the upper end and the lower end of the lower edge strip center laminated plate 19 are respectively provided with four lower edge strip laminated plates 15-18.
In addition, the thickness of seven upper edge strip laminated plates 7-13 is below 0.5mm, and the thickness of four lower edge strip laminated plates 15-18 is below 0.4 mm.
The utility model has the advantages of simple structure and convenient operation.
The upper and lower horizontal parts of the upper and lower edge strips and the I-shaped beam of the utility model are used for bearing the tension and compression load; the front and rear edge webs (3 and 4) and the vertical part of the I-shaped beam are used for bearing shearing load and torque; the foam blocks are used to maintain the shape of the beam and reduce structural deformation when subjected to forces.
According to the above, the utility model discloses fixed wing unmanned aerial vehicle combination formula roof beam adopts the integrated configuration of reason strip 1, lower edge strip 2, leading edge web 3, trailing edge web 4, front side foam block 5, rear side foam block 25 and I-beam 6, and the quality of fixed wing unmanned aerial vehicle combination formula roof beam is light, and bearing capacity is good.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description. The scope of protection of the present invention is not limited to the following description.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of the present invention at the wing root.
Fig. 3 is the structure diagram of the ladder laying layer of the upper edge strip of the utility model.
Fig. 4 is a cross-sectional view of the top edge strip ply of the present invention (taken through the wing root, right half of fig. 3).
Fig. 5 is the structure diagram of the ladder laying layer of the lower fringe strip of the utility model.
Fig. 6 is a cross-sectional view of the lower edge strip layer of the present invention (taken through the wing root, right half of fig. 5).
Detailed Description
As shown in the figure, the utility model comprises an upper edge strip 1, a lower edge strip 2, a front edge web 3, a rear edge web 4, a front side foam block 5, a rear side foam block 25 and an I-beam 6, wherein the front side foam block 5 is arranged at the front side of the I-beam 6, the rear side foam block 25 is arranged at the rear side of the I-beam 6, the front edge web 3 is arranged at the front end of the front side foam block 5, and the rear edge web 4 is arranged at the rear end of the rear side foam block 25;
the upper edge strip 1 is arranged at the upper ends of the front edge web 3, the front side foam block 5, the I-shaped beam 6, the rear side foam block 25 and the rear edge web 4, and the lower edge strip 2 is arranged at the lower ends of the front edge web 3, the front side foam block 5, the I-shaped beam 6, the rear side foam block 25 and the rear edge web 4.
The front side foam block 5 and the rear side foam block 25 are PMI foam blocks.
The sections of the front side foam block 5 and the rear side foam block 25 are in a convex shape corresponding to the I-beam 6.
The center line 24 of the end part of the I-shaped beam 6 passes through the middle point of the end part of the upper edge strip 1 and the middle point of the end part of the lower edge strip 2.
The front edge web 3, the front side foam block 5, the I-shaped beam 6, the rear side foam block 25 and the rear edge web 4 are arranged on the same plane, and the front edge web 3, the front side foam block 5, the I-shaped beam 6, the rear side foam block 25 and the rear edge web 4 are arranged on the same plane.
The section of the upper edge strip 1 is shaped like a Chinese character 'wu21274', the opening of which is downward, the upper end of a front edge web plate 3 is arranged at the inner side of the front lower bent edge of the upper edge strip 1, and the upper end of a rear edge web plate 4 is arranged at the inner side of the rear lower bent edge of the upper edge strip 1;
the section of the lower edge strip 2 is shaped like a Chinese character 'wu21274', the opening of which is upward, the lower end of a front edge web plate 3 is arranged at the inner side of the front upper bent edge of the lower edge strip 2, and the lower end of a rear edge web plate 4 is arranged at the inner side of the rear upper bent edge of the lower edge strip 2.
The upper edge strip 1 and the lower edge strip 2 in the shape of a letter' 21274are adopted, namely, the upper edge strip 1 and the lower edge strip 2 are bent, clamped and cured at two ends, so that all the components are conveniently combined and connected into a whole.
The upper edge strip 1 comprises an upper edge strip center laminated plate 14, a plurality of laminated plates are symmetrically arranged at the upper end and the lower end of the upper edge strip center laminated plate 14, the length of each upper edge strip laminated plate is gradually reduced from the side close to the upper edge strip center laminated plate 14 to the side far away from the upper edge strip center laminated plate 14, the center lines of the upper edge strip center laminated plate 14 and each upper edge strip laminated plate are on the same vertical plane 22, and the upper edge strip center laminated plate 14 and each upper edge strip laminated plate are parallel to each other;
the lower edge strip 2 comprises a lower edge strip center laminated plate 19, a plurality of lower edge strip laminated plates are symmetrically arranged at the upper end and the lower end of the lower edge strip center laminated plate 19, the length of each lower edge strip laminated plate is gradually reduced from the side close to the lower edge strip center laminated plate 19 to the side far away from the lower edge strip center laminated plate 19, the center lines of the lower edge strip center laminated plate 19 and each lower edge strip laminated plate are on the same vertical plane 21, and the lower edge strip center laminated plate 19 and each lower edge strip laminated plate are parallel to each other.
The upper and lower edge strip stepped plies are gradually transited from the wing root to the wing tip and are symmetrically distributed about the central laminate. The stepped layering of the upper and lower edge strips reduces the weight of the layering and is beneficial to the transmission of stress from the wing root to the wing tip.
The outlines of the long sides of the rear sides of the upper edge strip center layer plate 14 and the lower edge strip center layer plate 19 are rear straight line sections 20; the outlines of the front long sides of the upper border strip central layer plate 14 and the lower border strip central layer plate 19 comprise a front straight line section 26 in the middle, and two ends of the front straight line section are connected with the front ends of inclined line sections 27 symmetrically arranged on two sides; the outlines of the two ends of the upper edge strip center laminated plate 14 and the lower edge strip center laminated plate 19 are front-back oriented end straight line segments 28, the front ends of the end straight line segments are connected with the rear ends of the oblique line segments, and the rear ends of the end straight line segments are connected with the end parts of the rear straight line segments; the front straight line section is parallel to the rear straight line section;
as shown in fig. 3, the front and rear long side contours of each upper edge strip laminate panel correspond to the front and rear long side contours of the upper edge strip center laminate panel 14 (i.e., the vertical projection of the front and rear long side contours of the upper edge strip center laminate panel 14 covers the vertical projection of the front and rear long side contours of each upper edge strip laminate panel); the front side long edge profile of the outermost upper edge strip laminate coincides with the front straight line segment in the front side long edge profile of the upper edge strip center laminate 14; the contour lines of both ends of each upper edge strip laminated plate are parallel to the contour lines of both ends of the upper edge strip central laminated plate 14;
as shown in fig. 5, the front-rear long-side contour of each lower edge strip laminate corresponds to the front-rear long-side contour of the lower edge strip center laminate 19 (i.e., the vertical projection of the front-rear long-side contour of the lower edge strip center laminate 19 covers the vertical projection of the front-rear long-side contour of each lower edge strip laminate); the front side long edge profile of the outermost lower edge strip laminate coincides with the front straight line segment in the front side long edge profile of the lower edge strip center laminate 19; the contour lines of both ends of each lower bead laminated plate are parallel to the contour lines of both ends of the lower bead center laminated plate 19.
As shown in fig. 4, a line 30 connecting the end of the outermost upper edge strip laminate to the end of the upper edge strip center laminate 14 passes through the end of each upper edge strip laminate on that side; as shown in fig. 6, a connecting line 31 between the end of the outermost lower bead laminate and the end of the lower bead center laminate 19 passes through the end of each lower bead laminate on that side. The length design of the stepped layer is beneficial to the transmission of stress from the wing root to the wing tip, and the integral bearing capacity of the beam is improved.
The end straight segments 28 are perpendicular to the rear straight segment 20.
Seven upper edge strip laminated plates 7 to 13 are respectively arranged at the upper end and the lower end of the upper edge strip center laminated plate 14, and four lower edge strip laminated plates 15 to 18 are respectively arranged at the upper end and the lower end of the lower edge strip center laminated plate 19.
The thicknesses of the seven upper edge strip laminated plates 7-13 are all less than 0.5mm, and the thicknesses of the four lower edge strip laminated plates 15-18 are all less than 0.4 mm. The upper edge strip center laminate 14 may be 0.9mm thick and the lower edge strip center laminate 19 may be 0.7mm thick.
The utility model discloses combination formula roof beam accessible extraction vacuum is carried out the precompression, makes the ladder lay the lower border strip that the layer structure (each was laid layer thickness and is foretell below 1mm, and the interlamellar spacing is less) closely laminate with other each part.
The I-beam 6, the upper edge strip 1, the lower edge strip 2, the front edge web 3 and the rear edge web 4 can adopt carbon fiber prepreg. The manufacturing difficulty of the fixed-wing unmanned aerial vehicle beam is reduced while the beam mass is reduced, and the bearing capacity of the beam is improved.
After autoclave curing, the I-beam, the upper and lower edge strips, the front and rear edge webs become a whole, wherein the internal filling material is PMI foam.
The i-beam 6 can be divided into three parts: upper and lower flanges (i.e., upper and lower horizontal portions of the i-beam) and an i-beam web (i.e., a middle vertical portion of the i-beam). The upper flange layer and the lower flange layer can be respectively arranged on the upper side and the lower side of the web plate of the I-beam, and the upper flange layer and the lower flange layer and the web plate of the I-beam are coated by 2 0-degree layers to realize the combination of the I-beam.
PMI foam can adopt triaxial numerical control finishing impression equipment to process, places the front and back of I-beam respectively with two parts of PMI foam after processing is accomplished. After the front edge web plate and the rear edge web plate are laid, the front edge web plate and the rear edge web plate are placed into a vacuum bag, pre-compaction is carried out through vacuum pumping, and then the front edge web plate and the rear edge web plate are respectively placed on the front side and the rear side of the PMI foam. The upper and lower edge strip layers are gradually transited in a step mode from the wing root to the wing tip, the upper edge strip step layer is divided into 8 areas, and the area layers are symmetrically distributed relative to the upper edge strip central laminated plate 14. The step-wise lay-up of the lower bead is divided into 5 zones, each zone lay-up being symmetrically distributed about the lower bead center laminate panel 19.
After the upper and lower edge strips are completely laid, pre-compacting is carried out, then the upper and lower edge strips are placed on the upper and lower sides of the foam blocks at the front and rear sides, the I-beams and the web plates at the front and rear sides, and the lower edge strip laying area 23 and the upper edge strip laying area 13 (namely the bending part of the upper and lower edge strips in the shape like the character' 21274) are lapped on the web plates at the front and rear edges, wherein the lapping areas (namely the bending parts) are tightly laminated.
The utility model discloses the shaping mode of combination formula roof beam can adopt the mode of autoclave solidification. The combined composite material beam is placed into a vacuum bag to be vacuumized and then placed into an autoclave to be cured. And after the curing is finished, removing the demolding cloth wrapped on the beam, and thus finishing the preparation of the composite beam.
It should be understood that the above detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.
Claims (10)
1. The utility model provides a fixed wing unmanned aerial vehicle combination formula roof beam, includes upper fringe strip (1), lower fringe strip (2), leading edge web (3), trailing edge web (4), front side foam block (5), rear side foam block (25) and I-beam (6), its characterized in that front side foam block (5) set up the front side at I-beam (6), rear side foam block (25) set up the rear side at I-beam (6), the front end of front side foam block (5) is arranged in to leading edge web (3), the rear end of rear side foam block (25) is arranged in to trailing edge web (4);
the upper end of front edge web (3), front side foam block (5), I-beam (6), rear side foam block (25) and rear edge web (4) are placed in upper edge strip (1), and the lower end of front edge web (3), front side foam block (5), I-beam (6), rear side foam block (25) and rear edge web (4) are placed in lower edge strip (2).
2. The fixed-wing drone sectional beam according to claim 1, characterized in that the front side foam blocks (5) and rear side foam blocks (25) are PMI foam blocks.
3. The combined beam for fixed-wing uavs according to claim 1, characterized in that the cross-section of the front side foam block (5) and the rear side foam block (25) is in a shape corresponding to an i-beam (6).
4. A fixed wing drone combined beam according to claim 1, characterised in that the i-beam (6) end centre line passes through the upper edge strip (1) end midpoint and the lower edge strip (2) end midpoint.
5. The combined beam of the fixed-wing unmanned aerial vehicle as claimed in claim 1, wherein the upper end faces of the front edge web (3), the front side foam block (5), the I-beam (6), the rear side foam block (25) and the rear edge web (4) are on the same plane, and the lower end faces of the front edge web (3), the front side foam block (5), the I-beam (6), the rear side foam block (25) and the rear edge web (4) are on the same plane.
6. The combined beam of the fixed-wing unmanned aerial vehicle is characterized in that the section of the upper edge strip (1) is in a shape of a reversed V21274with an opening facing downwards, the upper end of a front edge web (3) is arranged on the inner side of a front lower bent edge of the upper edge strip (1), and the upper end of a rear edge web (4) is arranged on the inner side of a rear lower bent edge of the upper edge strip (1);
the cross section of the lower edge strip (2) is shaped like a turned 21274with an upward opening, the lower end of the front edge web plate (3) is arranged at the inner side of the front upper bent edge of the lower edge strip (2), and the lower end of the rear edge web plate (4) is arranged at the inner side of the rear upper bent edge of the lower edge strip (2).
7. The fixed-wing drone combined beam according to claim 1, characterized in that the upper edge strip (1) includes an upper edge strip center laminate (14), a plurality of upper edge strip laminates are symmetrically disposed on upper and lower ends of the upper edge strip center laminate (14), a length of each upper edge strip laminate gradually decreases from a side close to the upper edge strip center laminate (14) to a side far from the upper edge strip center laminate (14), center lines of the upper edge strip center laminate (14) and each upper edge strip laminate are on a same vertical plane, and the upper edge strip center laminate (14) and each upper edge strip laminate are parallel to each other;
the lower edge strip (2) comprises a lower edge strip center laminated plate (19), a plurality of lower edge strip laminated plates are symmetrically arranged at the upper end and the lower end of the lower edge strip center laminated plate (19), the length of each lower edge strip laminated plate is gradually reduced from the side close to the lower edge strip center laminated plate (19) to the side far away from the lower edge strip center laminated plate (19), the center lines of the lower edge strip center laminated plate (19) and each lower edge strip laminated plate are on the same vertical plane, and the lower edge strip center laminated plate (19) and each lower edge strip laminated plate are parallel to each other.
8. The fixed-wing drone combined beam of claim 7, characterised in that the profile of the rear long side of the upper and lower edge strip central laminates (14, 19) is a rear straight section; the outlines of the long sides of the front sides of the upper edge strip center laminated plate (14) and the lower edge strip center laminated plate (19) comprise front straight line sections in the middle, and the two ends of each front straight line section are connected with the front ends of the inclined line sections symmetrically arranged on the two sides; the outlines of two ends of the upper edge strip center laminated plate (14) and the lower edge strip center laminated plate (19) are front-back-oriented end straight line segments, the front ends of the end straight line segments are connected with the rear ends of the inclined line segments, and the rear ends of the end straight line segments are connected with the end parts of the rear straight line segments; the front straight line section is parallel to the rear straight line section;
the front and rear long side outlines of each upper edge strip laminated plate correspond to the front and rear long side outlines of the upper edge strip central laminated plate (14); the front long side contour of the outermost upper edge strip laminated plate is superposed with the front straight line section in the contour of the front long side of the upper edge strip central laminated plate (14); the contour lines of the two ends of each upper edge strip laminated plate are parallel to the contour lines of the two ends of the upper edge strip central laminated plate (14);
the front and rear long side profiles of the lower edge strip laminates correspond to the front and rear long side profiles of the lower edge strip center laminate (19); the front long edge profile of the outermost lower edge strip laminated plate is superposed with the front straight line segment in the profile of the front long edge of the lower edge strip center laminated plate (19); the contour lines of both ends of each lower edge strip laminate are parallel to the contour lines of both ends of the lower edge strip center laminate (19).
9. The fixed-wing drone combined beam of claim 8, wherein the end linear segment is perpendicular to the rear linear segment.
10. A fixed wing drone sectional beam according to claim 7, characterised in that the line connecting the outermost upper edge strip laminate end to the upper edge strip central laminate (14) end passes through the side upper edge strip laminate end; the line connecting the end of the lower edge strip laminate on the outermost side and the end of the lower edge strip center laminate (19) passes through the end of each lower edge strip laminate on the side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986956.XU CN217624076U (en) | 2022-07-29 | 2022-07-29 | Fixed wing unmanned aerial vehicle combination formula roof beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986956.XU CN217624076U (en) | 2022-07-29 | 2022-07-29 | Fixed wing unmanned aerial vehicle combination formula roof beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217624076U true CN217624076U (en) | 2022-10-21 |
Family
ID=83636961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221986956.XU Active CN217624076U (en) | 2022-07-29 | 2022-07-29 | Fixed wing unmanned aerial vehicle combination formula roof beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217624076U (en) |
-
2022
- 2022-07-29 CN CN202221986956.XU patent/CN217624076U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113771388B (en) | Forming method of special-shaped composite material reinforced grid rib and special-shaped skin cabin section thereof | |
| CN110450937B (en) | I-shaped long-purlin wallboard structure made of composite material, forming die and forming method | |
| CN109514951A (en) | Fiber reinforced light core filled composite material and the subway cockpit cabin of preparation | |
| CN113733595B (en) | Processing method of fully-wrapped composite material foam sandwich wing rib | |
| CN113232834B (en) | Near space double-web-plate hollow composite material propeller structure and manufacturing method thereof | |
| CN106891548A (en) | A kind of T-shaped Material Stiffened Panel forming frock of composite and forming method | |
| CN111098939B (en) | Composite material vehicle body, composite material laying structure and laying method | |
| CN101342941A (en) | Disposal solidifying and molding method for fuselage ring and outer panel skin | |
| CN110510145A (en) | Three beam type composite wing overall structures of one kind and its moulding technique | |
| CN109360919A (en) | A kind of full composite material battery case of new-energy automobile and preparation method thereof | |
| CN217624076U (en) | Fixed wing unmanned aerial vehicle combination formula roof beam | |
| CN206528102U (en) | A kind of T-shaped Material Stiffened Panel forming frock of composite | |
| CN114683579A (en) | Carbon fiber product embedded pipe body forming structure and forming method | |
| US20220032562A1 (en) | Improvements relating to wind turbine blade manufacture | |
| CN209738315U (en) | Modular-design composite material mold | |
| CN106476330A (en) | A kind of rail vehicle aramid fiber honeycomb side top board and preparation method thereof | |
| CN214395506U (en) | Forming die for I-shaped parts made of composite materials | |
| CN111907087B (en) | Forming assembly tool and manufacturing method for composite unmanned aerial vehicle horizontal tail | |
| CN212021859U (en) | Large-size multi-axial composite material bearing plate taking pultruded profile as sandwich | |
| CN116834331A (en) | Forming method of composite material annular I-beam | |
| CN111114037A (en) | Carbon fiber composite material interlayer and method for manufacturing automobile body by adopting interlayer | |
| CN115822867A (en) | Modularized wind power blade structure and manufacturing method thereof | |
| CN1749079A (en) | Method for producing magnetic suspension vehicle headstock and its sandwich structure | |
| CN115742367A (en) | High-modulus carbon fiber composite main frame, preparation method and preparation mold | |
| CN211543866U (en) | Composite material partition frame structure for aircraft wing trailing edge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |