Organic laminated windshield transparency with asymmetrically connected edges

Abstract

The invention relates to the technical field of aircraft windshields, in particular to an organic laminated windshield transparent part with asymmetrically connected edges. The organic laminated windshield transparent part comprises a composite transparent part provided with a mounting hole; the first pressing plate is arranged on the first surface of the composite transparent part; the second pressing plate is arranged on the second surface of the composite transparent part; the fastening piece is used for connecting the first pressing plate, the composite transparent piece and the second pressing plate; the composite lining is contained in the mounting hole in the axial direction of the composite lining partially or completely, the fastener penetrates through the composite lining, the composite lining comprises an inner lining body and an outer lining body provided with a plurality of branch lining bodies, the branch lining bodies correspond to at least one layer of the composite transparent part, the inner lining body is selected according to the function of the fastener, and the outer lining body is selected according to the function of the fastener. And each sub-bushing is selected according to the function of at least one layer of the corresponding composite transparent part. According to the windshield transparent part, the effects of load transmission, sealing, protection and the like can be improved, the stability and reliability of the windshield transparent part are improved, the using effect of the windshield transparent part is enhanced, and the service life of the windshield transparent part is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of aircraft windshields, and in particular to an organic laminated transparent windshield component with asymmetrically connected edges. Background Art

[0002] Depending on whether the aircraft windshield itself is directly connected to the surrounding window frames and the stress conditions, when the windshield is directly connected to the window frame structure (fuselage) and transmits in-plane load (tension), it is called "load-bearing screw connection", which can effectively reduce the weight of the aircraft structure and simplify the window frame structure, and can meet the design requirements of large openings and weight reduction of civil aircraft windshields.

[0003] Currently, windshields installed using a load-bearing screw connection method include laminated transparent parts. By directly punching holes in the edge connection area of ​​the laminated transparent parts and connecting them to the aircraft fuselage (window frame) using standard parts (bolts), and using a simple cylindrical bushing structure set between the standard parts and the holes, the load of the aircraft cabin is transmitted to the laminated transparent parts via the upper metal cover, the standard parts and the bushings, and the bushings play a role in load transmission and protection. However, due to the different positions and functions of different layers of the laminated transparent parts, the load on the edge connection area of ​​the laminated transparent parts is uneven throughout the thickness direction, that is, the edge connection area of ​​the laminated transparent parts is asymmetrically loaded, making it difficult for current conventional bushings to simultaneously take into account multiple aspects such as load transmission, protection and even sealing, resulting in insufficient stability of the windshield, affecting the performance and service life of the windshield. Summary of the Invention

[0004] In view of the problems existing in the background technology, the present application provides an organic laminated windshield transparent part with asymmetrically connected edges, which can improve the windshield transparent part's load transmission, sealing and protection effects, improve the windshield transparent part's stability and reliability, enhance the windshield transparent part's use effect and extend its service life.

[0005] According to one aspect of the present invention, there is provided an organic laminated windshield transparent member with asymmetrically connected edges, comprising: a composite transparent member, the composite transparent member having a first surface and a second surface facing each other, the composite transparent member being provided with a mounting hole connecting the first surface and the second surface; a first pressing plate, the first pressing plate being provided on the first surface of the composite transparent member and having a first through hole corresponding to the mounting hole; a second pressing plate, the second pressing plate being provided on the second surface of the composite transparent member and having a second through hole corresponding to the mounting hole; and a fastener, the fastener being inserted into the first through hole, the mounting hole, and the second through hole to secure the first through hole. A pressure plate, a composite transparent part and a second pressure plate are connected; a composite bushing, wherein the composite bushing is accommodated in the mounting hole along part or all of its axial length, the fastener passes through the composite bushing, the composite bushing includes an inner bushing in contact with the fastener and an outer bushing in contact with the mounting hole wall, the outer bushing is provided with a plurality of sub-bushings along the thickness direction of the composite transparent part, each of the sub-bushings is respectively provided corresponding to at least one layer of the composite transparent part, the inner bushing is selected according to the function of the fastener, and each of the sub-bushings is selected according to the function of at least one layer of the composite transparent part to which it corresponds.

[0006] In some embodiments of the present invention, the composite transparent part includes a first layer and a second layer, and the outer sleeve includes a first sub-sleeve and a second sub-sleeve, the first sub-sleeve can at least cover the corresponding area of ​​the mounting hole at the first layer, and the second sub-sleeve can at least cover the corresponding area of ​​the mounting hole at the second layer; the load-bearing and / or required strain of the first layer is greater than that of the second layer, and the elastic modulus of the first sub-sleeve is smaller than that of the second sub-sleeve.

[0007] In some embodiments of the present invention, the first sub-bushing is adjacent to the second sub-bushing, and one end of the first sub-bushing close to the second sub-bushing extends along the outer wall of the inner bushing to the inner side of the second sub-bushing, or one end of the second sub-bushing close to the first sub-bushing extends along the outer wall of the inner bushing to the inner side of the first sub-bushing.

[0008] In some embodiments of the present invention, the inner bushing is a metal bushing, and the outer wall of the metal bushing is provided with two flange plates, which are respectively located at two ends of the metal bushing, and the two flange plates are perpendicular to the outer wall of the metal bushing.

[0009] In some embodiments of the present invention, the first pressure plate is provided with a first slot for accommodating the flange plate at the corresponding end of the metal bushing on the side facing the first layer and / or the second pressure plate is provided with a second slot for accommodating the flange plate at the corresponding end of the metal bushing on the side facing the second layer.

[0010] In some embodiments of the present invention, a third layer is composited on the surface of one of the first and second layers located outside the composite transparent part. The size of the third layer is smaller than that of the first and second layers, and a gap is left between the edge of the third layer and the inner circle of the first pressure plate or the second pressure plate.

[0011] In some embodiments of the present invention, a film is provided between each two adjacent layers of the first layer, the second layer and the third layer.

[0012] In some embodiments of the present invention, an edge reinforcement sheet is provided between the first pressure plate and the second pressure plate located on the inner side of the composite transparent part and the composite transparent part, and the edge reinforcement sheet is provided with a third through hole corresponding to the mounting hole, and the composite bushing extends into the third through hole.

[0013] In some embodiments of the present invention, an adhesive layer is provided between the first pressing plate and the composite transparent part, between the edge reinforcement sheet and the composite transparent part, and between the second pressing plate and the edge reinforcement sheet; or an adhesive layer is provided between the first pressing plate and the edge reinforcement sheet, between the edge reinforcement sheet and the composite transparent part, and between the second pressing plate and the composite transparent part.

[0014] In some embodiments of the present invention, the first layer is provided with a first annular groove around the mounting hole on a side facing the first pressure plate and / or the second layer is provided with a second annular groove around the mounting hole on a side facing the second pressure plate and / or the edge reinforcement sheet is provided with a third annular groove around the third through hole on a side facing the first pressure plate or the second pressure plate, and the outer wall of each sub-bushing and the corresponding area of ​​each annular groove are respectively provided with an annular boss accommodated in the corresponding annular groove, and the thickness of each annular boss along the axial direction of the mounting hole is greater than the depth of the corresponding annular groove along the axial direction of the mounting hole.

[0015] The present invention provides an organic laminated windshield transparent part with asymmetrically connected edges. A composite bushing is formed by respectively arranging an inner bushing and an outer bushing near a fastener position and a mounting hole wall position, and the outer bushing is provided as a plurality of sub-bushings along the thickness direction of the composite transparent part. The plurality of sub-bushings are respectively provided corresponding to at least one layer of the composite transparent part. According to the different functions of the fastener and each layer of the composite transparent part, the materials of the inner bushing and each sub-bushing are reasonably selected, so that the load of the fuselage can be applied to the fastener and the inner bushing by a first pressure plate, and then the load is transferred to the composite transparent part mainly by at least one sub-bushing, and the load can be transferred to the composite transparent part mainly by at least one sub-bushing. In order to achieve the effect of sealing between the fastener and the mounting hole by using at least one sub-bushing, the inner bushing can be used to protect the fastener and the composite transparent part can be protected by each sub-bushing. According to the material, load and strain size that the bushing directly contacts, the protective effect of each bushing structure / material on the fastener or the composite transparent part is effectively brought into play, and the advantages of the bushings formed by various materials are greatly improved, which greatly improves the windshield transparent part in terms of load transmission, sealing and protection, effectively improves the stability and reliability of the windshield transparent part, enhances the performance of the windshield transparent part and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0017] Figure 1 Schematic diagram of the structure of the organic laminated windshield transparent member of the present invention;

[0018] Figure 2 is a schematic diagram of a composite bushing according to an embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of a composite bushing according to another embodiment of the present invention.

[0020] The numbers in the accompanying drawings represent as follows: 1. third layer; 2. first film layer; 3. first layer; 4. second film layer; 5. second layer; 6. first pressure plate; 7. first adhesive layer; 8. second adhesive layer; 9. edge reinforcement sheet; 10. third adhesive layer; 11. second pressure plate; 12. first sub-bushing; 13. second sub-bushing; 14. inner bushing; 15. first bolt; 16. first nut; 17. second bolt; 18. second nut; 19. fuselage; 20. annular boss; 21. first slot; 22. second slot; 23. first ring groove; 24. second ring groove; 25. third ring groove. DETAILED DESCRIPTION

[0021] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0023] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0024] The organic laminated transparent windshield member with asymmetrically connected edges provided in an embodiment of the present application is described below with reference to the accompanying drawings.

[0025] The embodiment of the present application discloses an organic laminated windshield transparent member with asymmetrically connected edges. Figure 1 As shown, the organic laminate windshield transparent component includes a composite transparent component, a first pressing plate 6, a second pressing plate 11, fasteners and a composite bushing.

[0026] Among them, the composite transparent part has a first surface and a second surface facing each other, and the composite transparent part is provided with a mounting hole connecting the first surface and the second surface; the first pressing plate 6 is provided on the first surface of the composite transparent part, and the first pressing plate 6 is provided with a first through hole corresponding to the mounting hole; the second pressing plate 11 is provided on the second surface of the composite transparent part, and the second pressing plate 11 is provided with a second through hole corresponding to the mounting hole; the fastener penetrates the first through hole, the mounting hole and the second through hole to connect the first pressing plate 6, the composite transparent part and the second pressing plate 11.

[0027] The composite bushing is accommodated in the mounting hole along part or all of its axial length, and the fastener passes through the composite bushing. The composite bushing includes an inner bushing 14 in contact with the fastener and an outer bushing in contact with the wall of the mounting hole. The outer bushing is provided with a plurality of sub-bushings along the thickness direction of the composite transparent part, and each sub-bushing is respectively provided corresponding to at least one layer of the composite transparent part. The inner bushing 14 is selected according to the material of the fastener, and each sub-bushing is selected according to the function of at least one layer of the corresponding composite transparent part.

[0028] It should be noted that, in some embodiments of the present invention, the first surface of the composite transparent part can be the side facing outside the fuselage 19, and the second surface can be the side facing inside the fuselage 19, or the second surface can be the side facing outside the fuselage 19, and the first surface can be the side facing inside the fuselage 19. This is not limited here, and people skilled in the art can make reasonable settings as needed.

[0029] For ease of understanding, the present invention will be described with the first surface as the side facing the outside of the fuselage 19 and the second surface as the side facing the inside of the fuselage 19, and the first pressure plate 6 extends a certain width around the composite transparent part. When installing the organic laminated windshield transparent part of the present invention, the extended part of the first pressure plate 6 can be fixed on the fuselage 19 through a fixing part, and the second pressure plate 11 is a free surface, thereby realizing the fixation of the organic laminated windshield transparent part as a whole to the fuselage 19.

[0030] It should be understood that the first pressing plate 6 and the second pressing plate 11 in the present invention are both annular structures arranged along the edge of the composite transparent member, and the figures of the present invention are only partially illustrated.

[0031] In the present invention, an inner bushing 14 and an outer bushing are respectively provided near the fastener position and near the mounting hole wall position to form a composite bushing, and the outer bushing is provided as a plurality of sub-bushings along the thickness direction of the composite transparent part, so that the plurality of sub-bushings are respectively provided corresponding to at least one layer of the composite transparent part. According to the different functions of the fastener and each layer of the composite transparent part, the material of the inner bushing 14 and each sub-bushing is reasonably selected, so that the load of the fuselage 19 can be applied to the fastener and the inner bushing 14 by the first pressure plate 6, and then the load is transferred to the composite transparent part mainly by at least one sub-bushing, and the use of at least one The sub-bushings seal the fasteners and the mounting holes, and at the same time, the inner bushing 14 can protect the fasteners and the sub-bushings can protect the composite transparent parts. According to the materials, loads and strains that the bushings are in direct contact with, the protective effects of the bushing structures / materials on the fasteners or the composite transparent parts can be effectively brought into play, thereby effectively bringing into play the advantages of bushings formed by various materials. Thus, the windshield transparent part of the present invention can improve the effects of load transmission, sealing and protection, effectively improve the stability and reliability of the windshield transparent part, enhance the use effect of the windshield transparent part and extend its service life.

[0032] In some embodiments of the present invention, the number of sub-sleeves includes but is not limited to 2, 3 or 4, and the total length of each sub-sleeve is equal to the length of the inner sleeve 14, that is, the two ends of the outer sleeve constituted by the sub-sleeves are flush with the two ends of the inner sleeve 14. Those skilled in the art can reasonably design the number and position of the sub-sleeves according to the layer structure function of the windshield transparent part, and no limitation is made here.

[0033] For ease of understanding, for example, when the number of sub-bushings is two, the two sub-bushings can be respectively set as the first sub-bushing 12 and the second sub-bushing 13; when the number of sub-bushings is three, the three sub-bushings can be respectively set as the first sub-bushing 12, the second sub-bushing 13 and the third sub-bushing, etc.

[0034] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the composite transparent part includes a first layer 3 and a second layer 5, and the outer sleeve includes a first sub-sleeve 12 and a second sub-sleeve 13. The first sub-sleeve 12 can at least cover the corresponding area of ​​the mounting hole at the first layer 3, and the second sub-sleeve 13 can at least cover the corresponding area of ​​the mounting hole at the second layer 5; the load-bearing and / or required strain of the first layer 3 is greater than that of the second layer 5, and the elastic modulus of the first sub-sleeve 12 is smaller than that of the second sub-sleeve 13.

[0035] In this embodiment, by designing the composite transparent part into a first layer 3 and a second layer 5, and designing the load-bearing and / or required strain of the first layer 3 to be greater than that of the second layer 5, the first layer 3 can be used as a load-bearing layer and the second layer 5 can be used as a protective layer. In contrast, the first sub-sleeve 12 with a relatively low elastic modulus can be better loaded from the inner sleeve 14 to the first layer 3, and the second sub-sleeve 13 with a relatively high elastic modulus can be better compressed between the inner sleeve 14 and the second layer 5 to play a sealing role.

[0036] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the first layer 3 is close to the outside of the fuselage 19 and the second layer 5 is close to the inside of the fuselage 19 .

[0037] It should be understood that, in this embodiment, the side of the first layer 3 facing away from the second layer 5 is the first surface, and the side of the second layer 5 facing away from the first layer 3 is the second surface.

[0038] Furthermore, the materials of the first layer 3 and the second layer 5 can be organic transparent materials, such as oriented organic glass (PMMA: polymethyl methacrylate) or PC (polycarbonate) and other commonly used aviation transparent materials.

[0039] In some embodiments of the present invention, the first sub-sleeve 12 can be made of a polymer material, which can be plastic, hard rubber or a composite material, etc., and the elastic modulus is required to be slightly lower than that of the organic transparent material of the first layer 3. The outer side of the first sub-sleeve 12 is in direct contact with the composite transparent part, and the inner side is bonded to the inner sleeve 14.

[0040] Preferably, the first sub-sleeve 12 is made of nylon, rubber or the like.

[0041] The first sub-sleeve 12 can effectively transmit the load without damaging the composite transparent part, especially the first layer 3, and avoid causing wear on the wall of the corresponding area of ​​the mounting hole at the first layer 3 to cause defects such as silver streaks and cracks.

[0042] In some embodiments of the present invention, the second sub-sleeve 13 may be made of silicone rubber; the inner wall of the second sub-sleeve 13 is bonded to the inner sleeve 14 as a whole, and the outer wall is in direct contact with the composite transparent member.

[0043] The second layer 5 close to the inner side of the fuselage 19 mainly plays a protective role, so the dependent variable of the second sub-sleeve 13 is small. By selecting the second sub-sleeve 13 of silicone rubber, it can play a very good sealing role while protecting the installation hole.

[0044] In some embodiments of the present invention, Figure 2 As shown, the first sub-sleeve 12 is adjacent to the second sub-sleeve 13, and the end of the first sub-sleeve 12 close to the second sub-sleeve 13 extends along the outer wall of the inner sleeve 14 to the inner side of the second sub-sleeve 13, or the end of the second sub-sleeve 13 close to the first sub-sleeve 12 extends along the outer wall of the inner sleeve 14 to the inner side of the first sub-sleeve 12.

[0045] In this embodiment, by cross-connecting the adjacent ends of the first sub-bushing 12 and the second sub-bushing 13 , the coupling effect of the first sub-bushing 12 and the second sub-bushing 13 can be improved, so that the two sub-bushings form an integral stable structure.

[0046] It should be understood that when the number of sub-bushings is three or four, every two adjacent sub-bushings can be connected by the above-mentioned cross-connection method.

[0047] In some embodiments of the present invention, the composite bushing composed of the inner bushing 14 and the outer bushing can be obtained by integrally casting and bonding the materials corresponding to each sub-bushing with the inner bushing 14. Specifically, it can be integrally formed with a mold with high precision, and reliable bonding between adjacent sub-bushings and between the sub-bushings and the inner bushing 14 can be achieved by processing the interface, and the composite bushing is easy to install.

[0048] In other embodiments of the present invention, in addition to integrally casting the composite bushing, the inner bushing 14 may be provided with a mortise and tenon structure or an inlaid structure to achieve connection between the inner and outer bushings.

[0049] In some embodiments of the present invention, the inner bushing 14 is a metal bushing.

[0050] In this embodiment, a metal bushing is selected as the main load-bearing structure of the composite bushing. The length direction can protect the normal direction of the composite transparent part in the edge connection area from stress. The radial direction of the metal bushing can withstand the shear stress of the edge connection area without deformation, protect the fasteners from bending stress, and reduce the shear stress at the wall of the mounting hole, thereby protecting the fasteners while transferring stress.

[0051] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the outer wall of the metal bushing is provided with two flanging plates, which are respectively located at the two ends of the metal bushing, and the two flanging plates are perpendicular to the outer wall of the metal bushing.

[0052] In this embodiment, the upper and lower ends of the metal bushing are thickened by setting flange plates to obtain an I-shaped structure, which can increase the strength of the metal bushing, thereby further improving the stability of load transfer and the protection of the mounting holes (composite transparent parts) and fasteners.

[0053] In some embodiments of the present invention, the material of the metal bushing includes but is not limited to aluminum alloy or stainless steel, which can effectively protect the fastener while transferring stress.

[0054] In some embodiments of the present invention, Figure 2 As shown, both ends of the metal bushing can directly contact the first pressing plate 6 and the second pressing plate 11 respectively.

[0055] In some embodiments of the present invention, Figure 3 As shown, the first pressing plate 6 is provided with a first card groove 21 for accommodating the corresponding end flange plate of the metal bushing on the side facing the first layer 3 and / or the second pressing plate 11 is provided with a second card groove 22 for accommodating the corresponding end flange plate of the metal bushing on the side facing the second layer 5.

[0056] It should be understood that, in the present invention, the card slot can be provided on the first pressing plate 6 alone, or on the second pressing plate 11 alone, or on both the first pressing plate 6 and the second pressing plate 11.

[0057] In this embodiment, the flanged plate at the end of the metal bushing is engaged with the first clamping groove 21 and / or the second clamping groove 22 to limit the position of the composite bushing as a whole in its radial direction.

[0058] In some embodiments of the present invention, Figure 1 As shown, the surface of one of the first layer 3 and the second layer 5 located on the outside of the composite transparent part is composited with a third layer 1. The size of the third layer 1 is smaller than the first layer 3 and the second layer 5. There is a gap between the edge of the third layer 1 and the inner circle of the first pressing plate 6 or the second pressing plate 11.

[0059] Specifically, in this embodiment, the first layer 3 serves as a load-bearing layer close to the outside of the fuselage 19 , and the third layer 1 is compounded on its surface. The third layer 1 does not perform edge connection to bear load, and mainly plays a protective role for the first layer 3 .

[0060] Furthermore, the third layer 1 is preferably made of inorganic glass.

[0061] In some embodiments of the present invention, Figure 1 As shown, films are provided between every two adjacent layers of the first layer 3, the second layer 5 and the third layer 1.

[0062] Furthermore, the film is preferably a transparent thermoplastic film.

[0063] Specifically, in this embodiment, a first film layer 2 is provided between the first layer 3 and the third layer 1 , and a second film layer 4 is provided between the first layer 3 and the second layer 5 .

[0064] It should be noted that the composite transparent member of the present invention can be formed by laminating organic transparent materials. The number and distribution of the layers of the composite transparent member of the present invention can be reasonably designed by those skilled in the art as needed.

[0065] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, an edge reinforcement sheet 9 is provided between the first pressing plate 6 and the second pressing plate 11 located on the inner side of the composite transparent member and the composite transparent member. The edge reinforcement sheet 9 has a third through hole corresponding to the mounting hole, and the composite bushing extends into the third through hole.

[0066] Specifically, in this embodiment, the second layer 5 serves as a protective layer close to the fuselage 19, and the edge reinforcement sheet 9 is provided on the surface of the second layer 5. The edge reinforcement sheet 9 is sandwiched between the second layer 5 and the second pressure plate 11 to improve strength and rigidity.

[0067] Furthermore, the edge reinforcement sheet 9 is preferably made of a material having a modulus slightly higher than that of the composite transparent member and a thermal expansion coefficient similar to that of the composite transparent member, such as polyester steel.

[0068] In one embodiment of the present invention, the organic glass used in the first layer 3 and the second layer 5 of the composite transparent member has a modulus of 2.85 GPa and a thermal expansion coefficient of 6.91*10 -5 ℃ -1The modulus of the polyester steel used in the edge reinforcement sheet 9 is 4.8Gpa, and the thermal expansion coefficient is 4.8*10 -5 ℃ -1 .

[0069] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, adhesive layers are respectively provided between the first pressing plate 6 and the composite transparent part, between the edge reinforcement sheet 9 and the composite transparent part, and between the second pressing plate 11 and the edge reinforcement sheet 9; or adhesive layers are respectively provided between the first pressing plate 6 and the edge reinforcement sheet 9, between the edge reinforcement sheet 9 and the composite transparent part, and between the second pressing plate 11 and the composite transparent part.

[0070] Specifically, in this embodiment, the first layer 3 is close to the outside of the fuselage 19, the second layer 5 is close to the inside of the fuselage 19, the edge reinforcement sheet 9 is arranged on the surface of the second layer 5, a first adhesive layer 7 is arranged between the first pressure plate 6 and the composite transparent part, a second adhesive layer 8 is arranged between the edge reinforcement sheet 9 and the composite transparent part, and a third adhesive layer 10 is arranged between the second pressure plate 11 and the edge reinforcement sheet 9, and the various adhesive layers play a role of connection and sealing.

[0071] In some embodiments of the present invention, the adhesive layer may be made of a moisture-proof sealant, such as polysulfide adhesive.

[0072] In some embodiments of the present invention, Figure 1 As shown, a circle of depression is set on the surface of the first layer 3 near its edge area, and the first pressing plate 6 is set in the depression of the first layer 3, and a gap is left between the first pressing plate 6 and the third layer 1 and the first film layer 2. The first adhesive layer 7 extends and fills the gap, and the outer side of the first pressing plate 6 and the surface of the third layer 1 are smoothly transitioned through the first adhesive layer 7.

[0073] In some embodiments of the present invention, Figure 3 As shown, the first layer 3 is provided with a first annular groove 23 around the mounting hole on the side facing the first pressure plate 6 and / or the second layer 5 is provided with a second annular groove 24 around the mounting hole on the side facing the second pressure plate 11 and / or the edge reinforcement sheet 9 is provided with a third annular groove 25 around the third through hole on the side facing the first pressure plate 6 or the second pressure plate 11, and the outer wall of each sub-bushing and the corresponding area of ​​each annular groove are respectively provided with an annular boss 20 accommodated in the corresponding annular groove, and the thickness of each annular boss 20 along the axial direction of the mounting hole is greater than the depth of the corresponding annular groove along the axial direction of the mounting hole.

[0074] It should be understood that the present invention can provide a first annular groove 23 around the mounting hole on the side of the first layer 3 facing the first pressure plate 6, or provide a second annular groove 24 around the mounting hole on the side of the second layer 5 facing the second pressure plate 11, or provide a third annular groove 25 around the third through hole on the side of the edge reinforcement sheet 9 facing the first pressure plate 6 or the second pressure plate 11, or provide annular grooves on the first pressure plate 6, the second pressure plate 11 and the edge reinforcement sheet 9 respectively, and form an annular boss at the corresponding position on the sub-bushing by integral molding or bonding as needed, that is, the annular boss 20 can be formed on the sub-bushing in advance, or can be fixed to the surface of the sub-bushing by bonding after the sub-bushing is assembled into the mounting hole.

[0075] It should be noted that the difference between the thickness of the annular boss 20 and the depth of the corresponding annular groove is the thickness of the adhesive layer to be formed.

[0076] Specifically, in this embodiment, a first annular groove 23, a second annular groove 24 and a third annular groove 25 are respectively provided on the first layer 3, the second layer 5 and the edge reinforcement sheet 9, and annular bosses 20 are respectively provided on the corresponding sub-bushings.

[0077] In the present invention, by designing the structure of the annular boss 20, the annular boss 20 is embedded in the annular groove and protrudes out of the annular groove, which can not only form a limit for the split bushing, but also stabilize the gap between the first pressure plate 6 and the composite transparent part, the gap between the edge reinforcement sheet 9 and the composite transparent part, and the gap between the second pressure plate 11 and the edge reinforcement sheet 9, thereby better realizing the control of the thickness of each adhesive layer, ensuring that the thickness of each adhesive layer is uniform and controllable, and further improving the connection effect and sealing effect.

[0078] In some embodiments of the present invention, after the mounting hole is formed, it is polished so that the roughness of the mounting hole is ≤ Ra0.3.

[0079] In some embodiments of the present invention, Figure 1 As shown, the fastener is preferably a bolt assembly, which includes a first bolt 15 and a first nut 16. The rod of the first bolt 15 is inserted into the mounting hole from the first pressure plate 6 to the second pressure plate 11 and the first nut 16 is tightened, and the surface of the first pressure plate 6 is provided with a groove for accommodating the large head of the first bolt 15.

[0080] Preferably, the fasteners are fasteners with high shear resistance.

[0081] In some embodiments of the present invention, the first pressing plate 6 and the second pressing plate 11 may be made of metal, such as stainless steel.

[0082] In some embodiments of the present invention, the first pressing plate 6 , the second pressing plate 11 , the fasteners, the composite bushing, etc. are installed in a wet installation manner.

[0083] In some embodiments of the present invention, Figure 1 As shown, the fixing parts for fixing the first pressure plate 6 and the fuselage 19 include a second bolt 17 and a second nut 18. The rod of the second bolt 17 is inserted from the first pressure plate 6 toward the fuselage 19 (window frame) and the second nut 18 is tightened, and the surface of the first pressure plate 6 is provided with a groove for accommodating the large head of the second bolt 17.

[0084] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An organic laminated transparent windshield member with asymmetrically connected edges, characterized in that: include: A composite transparent member, the composite transparent member having a first surface and a second surface facing each other, and a mounting hole communicating with the first surface and the second surface; a first pressing plate, the first pressing plate being provided on the first surface of the composite transparent member and having a first through hole corresponding to the mounting hole; a second pressing plate, the second pressing plate being provided on the second surface of the composite transparent member and having a second through hole corresponding to the mounting hole; a fastener, the fastener passing through the first through hole, the mounting hole, and the second through hole to connect the first pressing plate, the composite transparent member, and the second pressing plate; A composite bushing, wherein part or all of the composite bushing is accommodated in the mounting hole along its axial length, and the fastener passes through the composite bushing. The composite bushing comprises an inner bushing in contact with the fastener and an outer bushing in contact with the mounting hole wall. The outer bushing is provided as a plurality of sub-bushings along the thickness direction of the composite transparent part, and each sub-bushing is respectively provided corresponding to at least one layer of the composite transparent part. The inner bushing is selected according to the function of the fastener, and each sub-bushing is selected according to the function of at least one layer of the composite transparent part to which it corresponds.

2. The organic laminated transparent windshield member with asymmetrically connected edges according to claim 1, characterized in that: The composite transparent member includes a first layer and a second layer, and the outer sleeve includes a first sub-sleeve and a second sub-sleeve, wherein the first sub-sleeve can at least cover a corresponding area of ​​the mounting hole on the first layer, and the second sub-sleeve can at least cover a corresponding area of ​​the mounting hole on the second layer; The load-bearing and / or required strain of the first layer is greater than that of the second layer, and the elastic modulus of the first sub-bushing is smaller than that of the second sub-bushing.

3. The organic laminated transparent windshield member with asymmetrically connected edges according to claim 2, characterized in that: The first sub-bushing is adjacent to the second sub-bushing, and one end of the first sub-bushing close to the second sub-bushing extends along the outer wall of the inner bushing to the inner side of the second sub-bushing, or one end of the second sub-bushing close to the first sub-bushing extends along the outer wall of the inner bushing to the inner side of the first sub-bushing.

4. The organic laminated transparent windshield member with asymmetrically connected edges according to claim 2, characterized in that: The inner bushing is a metal bushing, and the outer wall of the metal bushing is provided with two flanging plates, which are respectively located at two ends of the metal bushing, and the two flanging plates are perpendicular to the outer wall of the metal bushing.

5. The organic laminated transparent windshield member with asymmetrically connected edges according to claim 4, characterized in that: The first pressing plate has a first slot for accommodating the flanged plate at the corresponding end of the metal bushing on one side facing the first layer, and / or the second pressing plate has a second slot for accommodating the flanged plate at the corresponding end of the metal bushing on one side facing the second layer.

6. The organic laminated transparent windshield member with asymmetrically connected edges according to claim 2, characterized in that: The surface of one of the first and second layers located outside the composite transparent part is composited with a third layer, the size of the third layer is smaller than the first and second layers, and a gap is left between the edge of the third layer and the inner circle of the first pressing plate or the second pressing plate.

7. The organic laminated transparent windshield member with asymmetrically connected edges according to claim 6, characterized in that: Films are respectively arranged between every two adjacent layers of the first layer, the second layer and the third layer.

8. The organic laminated transparent windshield member with asymmetrically connected edges according to claim 2, characterized in that: An edge reinforcement sheet is provided between the first and second pressure plates, the pressure plate located inside the composite transparent member, and the composite transparent member. The edge reinforcement sheet has a third through hole corresponding to the mounting hole, and the composite bushing extends into the third through hole.

9. The organic laminated transparent windshield member with asymmetrically connected edges according to claim 8, characterized in that: Adhesive layers are respectively provided between the first pressing plate and the composite transparent member, between the edge reinforcement sheet and the composite transparent member, and between the second pressing plate and the edge reinforcement sheet; or Adhesive layers are respectively provided between the first pressing plate and the edge reinforcement sheet, between the edge reinforcement sheet and the composite transparent member, and between the second pressing plate and the composite transparent member.

10. The organic laminated transparent windshield member with asymmetrically connected edges according to claim 9, characterized in that: The first layer is provided with a first annular groove around the mounting hole on a side facing the first pressure plate and / or the second layer is provided with a second annular groove around the mounting hole on a side facing the second pressure plate and / or the edge reinforcement sheet is provided with a third annular groove around the third through hole on a side facing the first pressure plate or the second pressure plate, and the outer wall of each sub-bushing and the corresponding area of ​​each annular groove are respectively provided with an annular boss accommodated in the corresponding annular groove, and the thickness of each annular boss along the axial direction of the mounting hole is greater than the depth of the corresponding annular groove along the axial direction of the mounting hole.

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