Reinforcing structure of inverted cone section of fairing

Abstract

The invention discloses a reinforcing structure of an inverted cone section of a fairing. The reinforcing structure of the inverted cone section of the fairing comprises a bottom ring frame, an inverted cone section skin, a butt joint ring frame, a hinge inner support, a hinge outer support and a long explosive bolt box. The bottom ring frame is fixed to the bottom end of the inverted-cone-section skin, and the butt-joint ring frame is fixed to the top end of the inverted-cone-section skin. The hinge inner support is fixed on the inner side of the inverted cone section skin, the bottom end of the hinge inner support is fixedly connected with the bottom ring frame, and the top end of the hinge inner support is fixedly connected with the butt joint ring frame; the hinge outer support is fixed on the outer side of the back taper section skin, and the hinge outer support is fixedly connected with the hinge inner support; the long explosive bolt box is fixed to the inner side of the inverted cone section skin, the bottom end of the long explosive bolt box is fixedly connected with the bottom ring frame, and the top end of the long explosive bolt box is fixedly connected with the butt joint ring frame. The novel hinge inner support and the long explosive bolt box are designed, multiple functions are achieved on one part, the types and the number of the parts are effectively reduced, and the assembly difficulty and the maintenance cost are reduced.

Description

Technical Field

[0001] The present application relates to a strengthening structure for the inverted cone section of a fairing, belonging to the technical field of aerospace equipment. Background Art

[0002] The rocket fairing is an important component in the rocket launch process, mainly used to protect the rocket body from erosion and damage by high-temperature gas flows. The fairing structure is relatively complex, especially the inverted cone section of the fairing, which has a large number of components, resulting in greater production and assembly difficulties and higher maintenance costs. Summary of the Invention

[0003] In view of the deficiencies in the prior art, a strengthening structure for the inverted cone section of a fairing provided by the present application includes a bottom ring frame, an inverted cone section skin, a docking ring frame, an inner hinge support, an outer hinge support, and a long explosive bolt box; the bottom ring frame is fixed at the bottom end of the inverted cone section skin, and the docking ring frame is fixed at the top end of the inverted cone section skin; the inner hinge support is fixed inside the inverted cone section skin, the bottom end of the inner hinge support is fixedly connected to the bottom ring frame, and the top end of the inner hinge support is fixedly connected to the docking ring frame; the outer hinge support is fixed outside the inverted cone section skin, and the outer hinge support is fixedly connected to the inner hinge support; the long explosive bolt box is fixed inside the inverted cone section skin, the bottom end of the long explosive bolt box is fixedly connected to the bottom ring frame, and the top end of the long explosive bolt box is fixedly connected to the docking ring frame.

[0004] In the above technical solution, further, a thickened area is provided on the inner wall of the docking ring frame, and the thickened area forms a stepped first connection structure on the inner wall of the docking ring frame. A stepped second connection structure is provided at the top end of the long explosive bolt box or / and the inner hinge support, and the first connection structure and the second connection structure are fitted and fixedly connected.

[0005] In the above technical solution, further, a first thickened area and a second thickened area are provided on the inner wall of the docking ring frame, and the inner wall of the docking ring frame, the first thickened area, and the second thickened area form three layers of steps.

[0006] In the above technical solution, further, the thickened area and the inner wall of the docking ring frame or two adjacent thickened areas are connected by an obtuse angle structure for transition.

[0007] In the above technical solution, further, the bottom ring frame is composed of a bottom ring frame back plate and a bottom ring frame bottom plate, and the bottom ring frame back plate and the bottom ring frame bottom plate are fixedly connected to form an L shape; the bottom ring frame back plate is attached to the inverted cone section skin; one end of the long explosive bolt box and / or the inner hinge support has a first surface fixedly connected to the bottom ring frame back plate and a second surface fixedly connected to the bottom ring frame bottom plate.

[0008] In the above technical solution, further, it further includes a longeron in the inverted cone section, a bottom end reinforcement, and a top end reinforcement. The longeron in the inverted cone section is fixed to the left end or the right end of the inverted cone section skin; the bottom end reinforcement is fixedly connected to the bottom ring frame, the inverted cone section skin, and the longeron in the inverted cone section at the same time; the top end reinforcement is fixedly connected to the docking ring frame, the inverted cone section skin, and the longeron in the inverted cone section at the same time.

[0009] In the above technical solution, further, the longeron in the inverted cone section is composed of a first longeron back plate and a second longeron back plate, and the first longeron back plate and the second longeron back plate are fixedly connected to form an L shape.

[0010] In the above technical solution, further, the bottom end reinforcement is provided with three connection surfaces that are perpendicular to each other in pairs. Among them, the first connection surface is fixedly connected to the bottom plate of the bottom ring frame, the second connection surface is fixedly connected to the first longeron back plate, and the third connection surface is fixedly connected to the second longeron back plate, the back plate of the bottom ring frame, and the inverted cone section skin at the same time.

[0011] In the above technical solution, further, the top end reinforcement is of a double T-shaped structure, and the top end reinforcement is provided with two connection surfaces that are perpendicular to each other. Among them, one connection surface is fixedly connected to the first longeron back plate, and the other connection surface is fixedly connected to the second longeron back plate, the docking ring frame, and the inverted cone section skin at the same time.

[0012] In the above technical solution, further, it further includes a short explosive bolt box. The short explosive bolt box is fixed to the inner side of the inverted cone section skin. The bottom end of the short explosive bolt box is fixedly connected to the bottom ring frame, and the top end of the short explosive bolt box does not contact the docking ring frame.

[0013] The strengthening structure of the inverted cone section of the fairing provided by this application has the following beneficial effects:

[0014] 1. A new hinge inner support is designed, which simultaneously plays three functions: realizing the assembly of the bottom ring frame, the inverted cone section skin, and the docking ring frame; replacing the traditional longitudinal beam to realize the longitudinal support function; cooperating with the hinge outer support to play the hinge role. One part realizes multiple functions, effectively reducing the types and quantities of parts, and thus reducing the assembly difficulty and maintenance cost.

[0015] 2. A new long explosive bolt box is designed, which integrates the functions of the traditional longitudinal beam structure and the explosive box, reduces the types of parts, improves the overall strength, extends the traditional longitudinal beam function area to the cylindrical section of the conical column docking ring frame, and better transmits the force generated at the bottom to the conical column docking ring frame and the column section skin, making the force more evenly distributed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes, and advantages of the present invention will become more obvious:

[0017] Figure 1 Schematic three-dimensional structure diagram of the reinforcement structure of the fairing inverted cone section provided for the embodiment of the present application;

[0018] Figure 2 Exploded view of the reinforcement structure of the fairing inverted cone section provided for the embodiment of the present application;

[0019] Figure 3 Schematic three-dimensional structure diagram of the bottom ring frame provided for the embodiment of the present application;

[0020] Figure 4 Schematic three-dimensional structure diagram of the hinge inner support provided for the embodiment of the present application;

[0021] Figure 5 Schematic diagram of the cooperation between the hinge inner support and the hinge outer support provided for the embodiment of the present application;

[0022] Figure 6 Schematic three-dimensional structure diagram of the long explosive bolt box provided for the embodiment of the present application;

[0023] Figure 7 Schematic three-dimensional structure diagram of the inverted cone section stringer provided for the embodiment of the present application;

[0024] Figure 8 Schematic three-dimensional structure diagram of the bottom end reinforcement provided for the embodiment of the present application;

[0025] Figure 9 Schematic three-dimensional structure diagram of the top end reinforcement provided for the embodiment of the present application. Description of the Drawings

[0026] 110 - Bottom ring frame; 120 - Inverted cone section skin; 130 - Docking ring frame; 140 - Hinge inner support; 150 - Hinge outer support; 160 - Long explosive bolt box; 170 - Inverted cone section stringer; 180 - Bottom end reinforcement; 190 - Top end reinforcement; 200 - Short explosive bolt box; 131 - Thickened area; 210 - Second connection structure; 111 - Bottom ring frame back plate; 112 - Bottom ring frame bottom plate; 171 - First stringer back plate; 172 - Second stringer back plate; 181 - First connection surface; 182 - Second connection surface; 183 - Third connection surface. 141 - First surface at the bottom end of the hinge inner support; 142 - Second surface at the bottom end of the hinge inner support; 161 - First surface at the bottom end of the long explosive bolt box; 162 - Second surface at the bottom end of the long explosive bolt box. Detailed Embodiments

[0027] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0028] Embodiments based on the concepts of the present disclosure can be subject to various changes and can have various forms. Therefore, specific embodiments will be exemplarily shown in the drawings and will be described in detail in this specification or application. However, this is not intended to limit the embodiments based on the concepts of the present disclosure to a specific disclosed form, and it should be understood to include all changes, equivalents, and alternatives included within the spirit and technical scope of the present disclosure.

[0029] Terms such as first and / or second can be used to describe various components, but the components are not limited by these terms. These terms are only used for the purpose of distinguishing one component from other components. For example, within the scope not exceeding the scope of the rights based on the concepts of the present disclosure, the first component can be named the second component, and similarly, the second component can also be named the first component.

[0030] When referring to a certain component being "connected" or "joined" to another component, it should be understood that it can be directly connected or joined to the other component, or there can be other components in between. On the contrary, when referring to a certain component being "directly connected" or "directly joined" to another component, it should be understood that there are no other components in between. Other expressions used to describe the relationship between components, that is, "between", "directly between", "adjacent to", "directly adjacent to", etc. should also be interpreted in the same way.

[0031] The terms used in this specification are only used to describe specific embodiments and are not intended to limit the present disclosure. Unless clearly contrary in context, singular expressions include plural expressions. In this specification, terms such as "comprising" or "having" are used to specify the presence of predefined features, numbers, steps, actions, components, parts, or combinations thereof, and it should be understood that the presence or additional possibility of one or more other features, numbers, steps, actions, components, parts, or combinations thereof is not precluded in advance.

[0032] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present disclosure pertains. Terms that are the same as those defined in a general dictionary should be interpreted to have a meaning consistent with the meaning in the context of the relevant technology. Unless clearly defined in this specification, they should not be interpreted ideally or excessively as formal meanings.

[0033] In order to meet the performance requirements of aerospace equipment for use strength, rigidity, and lightweight, it is necessary to redesign a strengthening structure for the fairing inverted cone section.

[0034] To this end, the present application provides a strengthening structure for the inverted cone section of a fairing, including a bottom ring frame, an inverted cone section skin, a docking ring frame, an inner hinge support, an outer hinge support, and a long explosive bolt box; the bottom ring frame is fixed at the bottom end of the inverted cone section skin, and the docking ring frame is fixed at the top end of the inverted cone section skin; the inner hinge support is fixed inside the inverted cone section skin, the bottom end of the inner hinge support is fixedly connected to the bottom ring frame, and the top end of the inner hinge support is fixedly connected to the docking ring frame; the outer hinge support is fixed outside the inverted cone section skin, and the outer hinge support is fixedly connected to the inner hinge support; the long explosive bolt box is fixed inside the inverted cone section skin, the bottom end of the long explosive bolt box is fixedly connected to the bottom ring frame, and the top end of the long explosive bolt box is fixedly connected to the docking ring frame.

[0035] The inner hinge support has three functions: 1. To realize the assembly of the bottom ring frame, the inverted cone section skin, and the docking ring frame; 2. To perform the function of a traditional longitudinal beam; 3. To cooperate with the outer hinge support to play the role of a hinge. One part realizes multiple functions, effectively reducing the types and quantities of parts, and thus reducing the assembly difficulty and maintenance cost.

[0036] The long explosive bolt box combines the functions of a traditional longitudinal beam structure and an explosive box, reduces the types of parts, improves the overall strength, extends the traditional longitudinal beam function area to the cylindrical section of the cone-column docking ring frame, and better transmits the force generated at the bottom to the cone-column docking ring frame and the column section skin, making the force more evenly distributed.

[0037] Combined with the accompanying drawings, the above design scheme of the present application will be further elaborated in detail.

[0038] Figure 1 It is a three-dimensional structure schematic diagram of the strengthening structure for the inverted cone section of the fairing provided by the embodiment of the present application; Figure 2 It is an exploded view of the strengthening structure for the inverted cone section of the fairing provided by the embodiment of the present application.

[0039] Please refer to Figure 1 and Figure 2 As shown in, the strengthening structure for the inverted cone section of the fairing provided by the embodiment of the present application includes a bottom ring frame 110, an inverted cone section skin 120, a docking ring frame 130, an inner hinge support 140, an outer hinge support 150, a long explosive bolt box 160, a short explosive bolt box 200, an inverted cone section stringer 170, a bottom end strengthening member 180, and a top end strengthening member 190.

[0040] The bottom ring frame 110 is fixed to the bottom end of the conical section skin 120, and the docking ring frame 130 is fixed to the top end of the conical section skin 120; the inner hinge support 140 is fixed to the inner side of the conical section skin 120. The bottom end of the inner hinge support 140 is fixedly connected to the bottom ring frame 110, and the top end of the inner hinge support 140 is fixedly connected to the docking ring frame 130; the outer hinge support 150 is fixed to the outer side of the conical section skin 120, and the outer hinge support 150 is fixedly connected to the inner hinge support 140.

[0041] The long explosive bolt box 160 is fixed to the inner side of the conical section skin 120. The bottom end of the long explosive bolt box 160 is fixedly connected to the bottom ring frame 110, and the top end of the long explosive bolt box 160 is fixedly connected to the docking ring frame 130.

[0042] The short explosive bolt box 200 is fixed to the inner side of the conical section skin 120. The bottom end of the short explosive bolt box 200 is fixedly connected to the bottom ring frame 110, and the top end of the short explosive bolt box 200 does not contact the docking ring frame 130. The stress in the area of the explosive bolt boxes on both sides of the bottom is relatively small, and the force can be directly transmitted through the outer hinge support 150. Through simulation calculation, the energy generated by its explosion can also be transmitted upward through the stringer, and there is no need to design additional strengthening structures. Therefore, the short explosive bolt box 200 with a simpler structure is adopted to further reduce the overall mass while ensuring the structural integrity.

[0043] The conical section stringer 170 is fixed to the left end or the right end of the conical section skin 120; the bottom end strengthening member 180 is fixedly connected to the bottom ring frame 110, the conical section skin 120, and the conical section stringer 170 at the same time; the top end strengthening member 190 is fixedly connected to the docking ring frame 130, the conical section skin 120, and the conical section stringer 170 at the same time.

[0044] Figure 3 This is a three-dimensional structural schematic diagram of the bottom ring frame 110 provided by the embodiment of the present application.

[0045] Refer to Figure 3 , the bottom ring frame 110 is composed of a bottom ring frame back plate 111 and a bottom ring frame bottom plate 112. The bottom ring frame back plate 111 and the bottom ring frame bottom plate 112 are fixedly connected to form an L shape, and the bottom ring frame back plate 111 is attached to the conical section skin 120.

[0046] Figure 4 This is a three-dimensional structural schematic diagram of the inner hinge support 140 provided by the embodiment of the present application.

[0047] As Figure 4 shown, there are two fixed surfaces that are nearly vertical at the bottom end of the inner hinge support 140. Combining Figure 3, the first surface 141 at the bottom end of the inner hinge support is fixedly connected to the back plate 111 of the bottom ring frame, and the second surface 142 at the bottom end of the inner hinge support is fixedly connected to the bottom plate 112 of the bottom ring frame.

[0048] As Figure 4 shown, the top end of the inner hinge support 140 is provided with a stepped second connection structure 210. As Figure 2 shown, the inner wall of the docking ring frame 130 is provided with a thickened area 131, and the thickened area 131 forms a stepped first connection structure on the inner wall of the docking ring frame 130. The second connection structure 210 of the inner hinge support 140 fits and is fixedly connected to the first connection structure of the docking ring frame 130.

[0049] The docking ring frame 130 adopts a lightweight structure design, cancels the traditional T-shaped structure, and makes a local widening and thickening design. In this embodiment, the thin layer thickness is 2 - 6 mm, and the thickening is 4 - 8 mm.

[0050] In some embodiments, the inner wall of the docking ring frame 130 is provided with a first thickened area and a second thickened area, and the inner wall of the docking ring frame 130 and the first and second thickened areas form three layers of steps.

[0051] Furthermore, the thickened area 131 and the inner wall of the docking ring frame 130 or two adjacent thickened areas 131 are both transitionally connected by an obtuse angle structure, and no acute angle part is designed. The docking ring frame 130 with the above structure reduces the technical difficulty while ensuring the connection strength and reduces the overall weight.

[0052] The inner hinge support 140 provided in this embodiment adopts an integrated design, combines the longitudinal beam structure with the hinge support, improves the overall strength, extends the traditional longitudinal beam area to the docking ring frame 130, and better transmits the force generated at the bottom to the docking ring frame 130 and the column section skin, making the force more evenly distributed. The number and types of parts are reduced, thereby reducing the overall mass.

[0053] Figure 5 This is a schematic diagram of the cooperation between the inner hinge support 140 and the outer hinge support 150 provided in the embodiment of the present application.

[0054] As Figure 5 shown, the inner hinge support 140 fixed to the inner side of the inverted cone section skin 120 and the outer hinge support 150 fixed to the outer side of the inverted cone section skin 120 are bolted together. While fixing the inner hinge support 140 and the outer hinge support 150, the bottom ring frame 110 is also fixed to the bottom of the inverted cone section skin 120.

[0055] Refer to Figure 4 and Figure 5, the inner hinge support 140 and the outer hinge support 150 clamp the bottom ring frame back plate 111 and the conical section skin 120, making the bottom ring frame back plate 111 closely fixed to the conical section skin 120.

[0056] Figure 6 Schematic perspective view of the long explosive bolt box 160 provided for the embodiment of the present application.

[0057] As Figure 6 shown, the bottom end of the long explosive bolt box 160 is provided with two fixed surfaces that are nearly vertical. Combining Figure 3 , the first surface 161 at the bottom end of the long explosive bolt box is fixedly connected to the bottom ring frame back plate 111, and the second surface 162 at the bottom end of the long explosive bolt box is fixedly connected to the bottom ring frame bottom plate 112.

[0058] As Figure 6 shown, the top end of the long explosive bolt box 160 is provided with a stepped second connection structure 210. The second connection structure 210 of the long explosive bolt box 160 fits and is fixedly connected to the first connection structure of the docking ring frame 130.

[0059] The long explosive bolt box 160 adopts an integrated design, combining the longitudinal beam structure with the explosive box, reducing the types of parts, improving the overall strength, extending the traditional longitudinal beam area to the docking ring frame 130, and better transmitting the force generated at the bottom to the docking ring frame 130 and the column section skin, making the force more evenly distributed.

[0060] Figure 7 Schematic perspective view of the conical section longeron 170 provided for the embodiment of the present application;

[0061] As Figure 7 shown, the conical section longeron 170 is composed of a first longeron back plate 171 and a second longeron back plate 172, and the first longeron back plate 171 and the second longeron back plate 172 are fixedly connected to form an L shape.

[0062] The structure of the conical section longeron 170 shares part of the transmission of the bottom force, and the two reinforcing members make its connection with the bottom ring frame 110, the docking ring frame 130, the outer hinge support 150 and the conical section skin 120 closer, strengthening the overall structure.

[0063] Figure 8 Schematic perspective view of the bottom end reinforcing member 180 provided for the embodiment of the present application;

[0064] As Figure 8As shown, the bottom reinforcement member 180 is provided with three connecting surfaces that are perpendicular to each other in pairs. Among them, the first connecting surface 181 is fixedly connected to the bottom ring frame bottom plate 112, the second connecting surface 182 is fixedly connected to the first longeron back plate 171, and the third connecting surface 183 is simultaneously fixedly connected to the second longeron back plate 172, the bottom ring frame back plate 111, and the inverted cone section skin 120.

[0065] The bottom reinforcement member 180 effectively strengthens the connection strength of the bottom ring frame 110, the hinge outer support 150, the inverted cone section skin 120, and the inverted cone section longerons 170. The joint surface with the bottom ring frame 110 adopts a conformal design to ensure the coherence of its force conduction.

[0066] Figure 9 This is a three-dimensional structural schematic diagram of the top reinforcement member 190 provided for the embodiment of the present application.

[0067] As Figure 9 shown, the top reinforcement member 190 has a double T-shaped structure. The top reinforcement member 190 is provided with two connecting surfaces that are perpendicular to each other. Among them, one connecting surface is fixedly connected to the first longeron back plate 171, and the other connecting surface is simultaneously fixedly connected to the second longeron back plate 172, the docking ring frame 130, and the inverted cone section skin 120.

[0068] It strengthens the stability of the port of the docking ring frame 130 and effectively strengthens the connection strength of the conical column docking ring frame 130, the hinge outer support 150, the inverted cone section skin 120, and the inverted cone section longerons 170. Its equal wall thickness design with the docking ring frame 130 makes the conduction of force more coherent and uniform, and the parts are lighter.

[0069] In this embodiment, the inverted cone section skin 120 is made of carbon fiber composite material and is locally thickened to assist the bottom extended explosive bolt box 160 and the hinge inner support 140 in force transmission. The bottom ring frame 110, the docking ring frame 130, the hinge inner support 140, the inverted cone section longerons 170, and the long explosive bolt box 160 are all made of high-strength aluminum alloy and can withstand large axial forces and shear forces in their respective regions.

[0070] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole and the technical solutions in each embodiment.

Claims

1. A reinforcement structure of a fairing inverted cone section, characterized in that: It includes a bottom ring frame, an inverted cone skin, a butt ring frame, an inner hinge support, an outer hinge support and a long explosive bolt box; the bottom ring frame is fixed to the bottom end of the inverted cone skin, and the butt ring frame is fixed to the top end of the inverted cone skin; the inner hinge support is fixed to the inner side of the inverted cone skin, the bottom end of the inner hinge support is fixedly connected to the bottom ring frame, and the top end of the inner hinge support is fixedly connected to the butt ring frame; the outer hinge support is fixed to the outer side of the inverted cone skin, and the outer hinge support is fixedly connected to the inner hinge support; the long explosive bolt box is fixed to the inner side of the inverted cone skin, the bottom end of the long explosive bolt box is fixedly connected to the bottom ring frame, and the top end of the long explosive bolt box is fixedly connected to the butt ring frame.

2. The reinforcement structure of the inverted cone section of a fairing according to claim 1, characterized in that: The inner wall of the docking ring frame is provided with a thickened area, and the thickened area forms a stepped first connecting structure on the inner wall of the docking ring frame. The top of the long explosive bolt box and / or the hinge inner support is provided with a stepped second connecting structure, and the first connecting structure and the second connecting structure are fitted and fixedly connected.

3. The reinforcement structure of the inverted cone section of a fairing according to claim 2, characterized in that: The inner wall of the butt joint ring frame is provided with a first thickened area and a second thickened area, and the inner wall of the butt joint ring frame and the first thickened area and the second thickened area form three steps.

4. A reinforcement structure of the inverted cone section of a fairing according to claim 2 or 3, characterized in that: The thickened area and the inner wall of the butt-jointed ring frame or two adjacent thickened areas are transitionally connected by an obtuse angle structure.

5. The reinforcement structure of the inverted cone section of a fairing according to claim 1, characterized in that: The bottom ring frame is composed of a bottom ring frame back plate and a bottom ring frame bottom plate, and the bottom ring frame back plate and the bottom ring frame bottom plate are fixedly connected to form an L shape; the bottom ring frame back plate is fitted with the inverted cone section skin; the first surface of one end of the long explosive bolt box and / or the hinge inner support is fixedly connected to the bottom ring frame back plate, and the second surface of the end is fixedly connected to the bottom ring frame bottom plate.

6. The reinforcement structure of the inverted cone section of a fairing according to claim 5, characterized in that: It also includes an inverted cone section long girder, a bottom end reinforcement and a top end reinforcement. The inverted cone section long girder is fixed to the left end or the right end of the inverted cone section skin; the bottom end reinforcement is fixedly connected to the bottom ring frame, the inverted cone section skin and the inverted cone section long girder at the same time; the top end reinforcement is fixedly connected to the docking ring frame, the inverted cone section skin and the inverted cone section long girder at the same time.

7. The reinforcement structure of the inverted cone section of a fairing according to claim 6, characterized in that: The inverted cone section long stringer is composed of a first long stringer back plate and a second long stringer back plate, and the first long stringer back plate and the second long stringer back plate are fixedly connected to form an L shape.

8. The reinforcement structure of the inverted cone section of a fairing according to claim 7, characterized in that: It also includes a bottom end reinforcement with three connecting surfaces that are perpendicular to each other, wherein the first connecting surface is fixedly connected to the bottom plate of the bottom ring frame, the second connecting surface is fixedly connected to the first long truss back plate, and the third connecting surface is fixedly connected to the second long truss back plate, the bottom ring frame back plate and the inverted cone section skin at the same time.

9. A reinforcement structure of the inverted cone section of a fairing according to claim 7 or 8, characterized in that: The top reinforcement is a double T-shaped structure, and the top reinforcement is provided with two mutually perpendicular connecting surfaces, wherein one connecting surface is fixedly connected to the back plate of the first long stringer, and the other connecting surface is simultaneously fixedly connected to the back plate of the second long stringer, the docking ring frame and the inverted cone section skin.

10. The reinforcement structure of the inverted cone section of a fairing according to claim 1, characterized in that: It also includes a short explosive bolt box, which is fixed on the inner side of the inverted cone section skin, the bottom end of the short explosive bolt box is fixedly connected to the bottom ring frame, and the top end of the short explosive bolt box does not contact the docking ring frame.

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