Low-resistance type movable tail end device for anti-condensation air supply system of rocket

Abstract

The utility model relates to the technical field of rocket launching, in particular to a low-resistance type movable tail end device for an anti-condensation air supply system of a rocket. A reducing elbow is arranged at the front end of the low-resistance type movable tail end device, the reducing elbow is connected with a rocket hatch connecting piece, and the reducing elbow and the rocket hatch connecting piece are clamped through a fast-assembling clamp; the flaring is arranged at the rear end of the low-resistance type movable tail end device, the flaring is connected with a tail end butt-joint opening of the rocket anti-condensation air supply system at a launching tower, and the flaring and the tail end butt-joint opening are clamped through the fast-assembly clamp; one end of the composite fiber air distribution pipe is connected with the flaring, and the other end of the composite fiber air distribution pipe is connected with the reducing elbow; the composite fiber air distribution pipe comprises a plurality of horizontal pipes and a plurality of vertical pipes, and the horizontal pipes are connected with the vertical pipes through elbows. The utility model has the characteristics of small resistance, light dead weight, convenience in disassembly and assembly and easiness in storage.

Description

TECHNICAL FIELD

[0001] The utility model relates to rocket launching technology field especially, and relates to a low resistance type movable end device for rocket dew prevention air supply system. BACKGROUND

[0002] In summer, after the conventional propellant of the rocket is filled, low dew point air is transported to the part by the rocket dew prevention air supply system to maintain the heat environment in the engine cabin, the inter-box section instrument cabin and meet the use demand, so as to isolate the outdoor air and avoid condensation. The dew prevention air supply system needs to be disassembled and stored in the wind pipe between the launch tower air supply end and the rocket engine cabin, the inter-box section during the rocket launching interval.

[0003] At present, the section of the wind pipe is mostly corrugated hose in China, and the connection between the corrugated hose and the launch tower air supply end interface and the connection between the corrugated hose and the rocket cabin opening connecting piece are mostly flange connections. The defects usually include:

[0004] 1. The corrugated hose has large resistance, resulting in reduced end air supply amount;

[0005] 2. The interface is inconvenient;

[0006] 3. The storage occupies a large space.

[0007] Therefore, a low resistance type movable end device for rocket dew prevention air supply system is designed, which has small resistance, light self weight, convenient disassembly and assembly and easy storage. CONTENT OF THE UTILITY MODEL

[0008] In view of the defects of the prior art described above, the purpose of the utility model is to provide a low resistance type movable end device for rocket dew prevention air supply system, which has the characteristics of small resistance, light self weight, convenient disassembly and assembly and easy storage.

[0009] To achieve the above purpose and other related purposes, the utility model provides a low resistance type movable end device for rocket dew prevention air supply system, which comprises a composite fiber cloth wind pipe, a quick mounting clamp, an elbow, a reducing elbow and an expanding mouth.

[0010] The reducing elbow is arranged at the front end of the low resistance type movable end device, the reducing elbow is connected with the rocket cabin opening connecting piece, and the reducing elbow and the rocket cabin opening connecting piece are clamped by the quick mounting clamp;

[0011] The expanding mouth is arranged at the rear end of the low resistance type movable end device, the expanding mouth is connected with the end interface of the rocket dew prevention air supply system at the launch tower, and the expanding mouth and the end interface are clamped by the quick mounting clamp;

[0012] A composite fiber cloth air duct, one end of which is connected with the flared mouth, the other end of the composite fiber cloth air duct is connected with the reducing elbow;

[0013] The composite fiber cloth air duct comprises a plurality of horizontal pipes and a plurality of vertical pipes, and the horizontal pipes and the vertical pipes are connected through elbows.

[0014] In an embodiment of the utility model, the composite fiber cloth air duct comprises:

[0015] The first horizontal pipe, one end of which is connected with the flared mouth, the other end of the first horizontal pipe is connected with one end of the first vertical pipe through the elbow;

[0016] The first vertical pipe, the other end of which is connected with one end of the second horizontal pipe through the elbow;

[0017] The second horizontal pipe, the other end of which is connected with one end of the second vertical pipe through the elbow;

[0018] The second vertical pipe, the other end of which is connected with the reducing elbow.

[0019] In an embodiment of the utility model, the pipe diameter of the composite fiber cloth air duct is same as the caliber of the terminal docking interface and the rocket hatch connector, and the pipe diameter of the composite fiber cloth air duct is set to be phi 100 to phi 250.

[0020] In an embodiment of the utility model, the length of the first horizontal pipe is set to be less than 0.3 m, the vertical height of the first vertical pipe is set to be less than 2.5 m, the length of the second horizontal pipe is set to be less than 4 m, and the vertical height of the second vertical pipe is set to be less than 1.5 m.

[0021] In an embodiment of the utility model, the along-the-way friction resistance coefficient of the composite fiber cloth air duct is not more than 0.025, the air duct self weight is 300 to 500 g / m 2 , the permeability is 0, and the fireproof performance is A-grade non-combustible.

[0022] In an embodiment of the utility model, further comprising:

[0023] The air leakage prevention zipper is connected between the flared mouth and the first horizontal pipe, the first horizontal pipe and the elbow, the elbow and the first vertical pipe, the elbow and the second horizontal pipe, the elbow and the second vertical pipe, and the second vertical pipe and the reducing elbow respectively.

[0024] In an embodiment of the utility model, the quick mounting clamp adopts stainless steel material, the width of the quick mounting clamp is set to be 2.8 to 3.2 cm, and the thickness is set to be 1.8 to 2.2 mm.

[0025] In an embodiment of the utility model, the inside of the elbow is provided with three flexible steel wire loops, the turning angle of the elbow is 90 DEG, the radius of curvature is 1, the caliber size and the material of the elbow are same with the composite fiber cloth air pipe.

[0026] In an embodiment of the utility model, the large diameter side of the reducing elbow is provided with a 10cm long circular air pipe close to the rocket hatch connecting piece.

[0027] In an embodiment of the utility model, the lap joint length between the reducing elbow and the rocket hatch connecting piece is no less than 6cm, and the lap joint length between the flared mouth and the butt joint mouth is no less than 6cm.

[0028] As described above, the utility model discloses a low resistance movable end device for rocket anti-condensation air supply system, which has the following beneficial effects:

[0029] (1) the low resistance movable end device for rocket anti-condensation air supply system of the utility model includes composite fiber cloth air pipe, quick mounting clamp, elbow, reducing elbow and flared mouth, and the utility model has the characteristics of small resistance, light self weight, convenient disassembly and reassembly and easy storage.

[0030] (2) the low resistance movable end device for rocket anti-condensation air supply system of the utility model meets the low dew point air sent into each cabin and box section of the rocket, and ensures that the heat environment in the cabin and box section meets the task requirement.

[0031] (3) the low resistance movable end device for rocket anti-condensation air supply system of the utility model has small friction resistance coefficient, reduces the fan power of the anti-condensation air supply system, ensures the end air volume, can be stored by using a reel, occupies small area and is convenient to carry.

[0032] (4) the low resistance movable end device for rocket anti-condensation air supply system of the utility model has light self weight, simple connection mode and is convenient to repeatedly disassemble and reassemble, and the application of the utility model has great significance in ensuring the end air volume of the rocket anti-condensation air supply system, reducing butt joint and withdrawal time, reducing the tower staff in the key process stage and the like. DRAWINGS

[0033] Figure 1 The structure diagram of the low resistance movable end device for rocket anti-condensation air supply system provided by the embodiment of the utility model.

[0034] Figure 2 The structure diagram of the elbow of the low resistance movable end device for rocket anti-condensation air supply system provided by the embodiment of the utility model.

[0035] Figure 3The structure diagram of the variable-diameter elbow of the low-resistance movable terminal device for the rocket anti-condensation air supply system is provided.

[0036] Figure 4 The structure diagram of the flared pipe of the low-resistance movable terminal device for the rocket anti-condensation air supply system is provided. DETAILED DESCRIPTION

[0037] The embodiments of the present application are illustrated by specific working examples below, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. The present application can also be implemented or applied by other different specific embodiments, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0038] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and only show the components related to the present application in the diagrams, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component in actual implementation can be arbitrarily changed, and the component layout pattern can also be more complex.

[0039] Terms such as first or second can be used to describe various components, but these components are not limited by the above terms. The above terms are used to distinguish one component from another component, for example, the first component can be referred to as the second component, and similarly, the second component can be referred to as the first component without departing from the scope of the concept according to the present disclosure.

[0040] In addition, "connected / coupled" means that one component is directly electrically connected to another component or indirectly electrically connected through another component. The singular form can include the plural form as long as it is not explicitly stated in the sentence. In addition, "comprising / including" or "comprising / including" used in the specification means that one or more components, steps, operations and elements are present or have been added. The specific structure or function description of the example of the embodiment of the concept disclosed in the specification is only exemplified to describe the example of the embodiment according to the concept, and the example of the embodiment according to the concept can be implemented in various forms, but these descriptions are not limited to the example of the embodiment described in the specification.

[0041] According to the concept, various modifications and changes can be applied to the examples of the embodiments so that the examples of the embodiments illustrated in the drawings and described in the specification will not limit the embodiments according to the concept but include all changes, equivalents or alternatives included in the spirit and technical scope of the present disclosure.

[0042] It should be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or connected or coupled to the other element through a third element. In contrast, it should be understood that when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements between them. Other expressions describing the relationship between components, i.e., "between... and...," and "directly between... and...," or "adjacent to... and "directly adjacent to...," need to be interpreted in the same way.

[0043] The terms used in the present specification are merely used to describe specific examples of the embodiments and are not intended to limit the present disclosure. The singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. In the present specification, it should be understood that the terms "include" or "have" indicate that there are features, numbers, steps, operations, components, parts or combinations thereof described in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0044] If there is no opposite definition, all terms used herein, including technical terms or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. If a term defined in a generally used dictionary is included in the present specification without clear definition thereof in the present specification, it should be interpreted to have the same meaning as in the context of the relevant technology, and should not be interpreted to be an ideal or overly formal meaning.

[0045] Descriptions of well-known components and processing techniques can be omitted so as not to unnecessarily obscure the embodiments of the present disclosure.

[0046] Throughout the specification, the same reference numerals refer to the same elements throughout the specification. Therefore, even if a reference numeral is not mentioned or described with reference to one drawing, it can be mentioned or described with reference to another drawing. Also, even if a reference numeral is not shown in one drawing, it can be mentioned or described with reference to another drawing.

[0047] In addition, the logic level of a signal can be different from or opposite to the described logic level. For example, a signal described as having a logic "high" level can alternatively have a logic "low" level, and a signal described as having a logic "low" level can alternatively have a logic "high" level.

[0048] The embodiments of the present disclosure will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present disclosure, many technical details are presented in order to enable the reader to better understand the present disclosure. However, the technical solutions claimed by the present disclosure can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0049] Please refer to Figure 1 , Figure 1 The structural diagram of the low-resistance movable end device for the rocket anti-condensation air supply system is provided. The low-resistance movable end device for the rocket anti-condensation air supply system comprises a composite fiber cloth air pipe 1, a quick-mounting clamp 2, an elbow 3, a reducing elbow 4, and an expanding mouth 5. The reducing elbow 4 is arranged at the front end of the low-resistance movable end device, the reducing elbow 4 is connected with a rocket hatch connecting piece 7 of a rocket 100, and the reducing elbow 4 and the rocket hatch connecting piece 7 are clamped by the quick-mounting clamp 2. The expanding mouth 5 is arranged at the rear end of the low-resistance movable end device, the expanding mouth 5 is connected with an end docking interface 6 of a rocket anti-condensation air supply system in a launch tower, and the expanding mouth 5 and the end docking interface 6 are clamped by the quick-mounting clamp 2. One end of the composite fiber cloth air pipe 1 is connected with the expanding mouth 5, and the other end of the composite fiber cloth air pipe 1 is connected with the reducing elbow 4. The composite fiber cloth air pipe 1 comprises a plurality of horizontal pipes and a plurality of vertical pipes, and the horizontal pipes and the vertical pipes are connected by the elbow 3.

[0050] Specifically, the composite fiber cloth air pipe 1 comprises a first horizontal pipe 1a, a first vertical pipe 1b, a second horizontal pipe 1c, and a second vertical pipe 1d. One end of the first horizontal pipe 1a is connected with the expanding mouth 5, the other end of the first horizontal pipe 1a is connected with one end of the first vertical pipe 1b through the elbow 3, one end of the second horizontal pipe 1c is connected with the other end of the first vertical pipe 1b through the elbow 3, one end of the second vertical pipe 1d is connected with the other end of the second horizontal pipe 1c through the elbow 3, and the other end of the second vertical pipe 1d is connected with the reducing elbow 4.

[0051] Specifically, the pipe diameter of the composite fiber cloth air pipe 1 is the same as the caliber of the end docking interface 6 and the rocket hatch connecting piece 7, and the pipe diameter of the composite fiber cloth air pipe 1 is set to φ100-φ250.

[0052] Specifically, the length of the first horizontal pipe 1a is set to be less than 0.3m, the vertical height of the first vertical pipe 1b is set to be less than 2.5m, the length of the second horizontal pipe 1c is set to be less than 4m, and the vertical height of the second vertical pipe 1d is set to be less than 1.5m.

[0053] In an embodiment of the utility model, the length L1 of the first horizontal pipe 1a is about the horizontal distance from the butt joint 6 to the edge of the movable platform, which is generally less than 0.3m, and the length of the first horizontal pipe 1a can be 0 under good installation conditions.

[0054] In an embodiment of the utility model, the length L2 of the first vertical pipe 1b is about the vertical height from the butt joint 6 to the movable platform, which is generally less than 2.5m.

[0055] In an embodiment of the utility model, the length L3 of the second horizontal pipe 1c is about the horizontal distance from the butt joint 6 to the rocket hatch connecting piece 7, which is laid on the movable platform.

[0056] In an embodiment of the utility model, the length L4 of the second vertical pipe 1d is about the vertical height from the rocket hatch connecting piece 7 to the movable platform, which is generally less than 1.5m.

[0057] In an embodiment of the utility model, the frictional resistance coefficient of the composite fiber cloth air pipe 1 is not greater than 0.025, the self weight of the air pipe is 300-500g / m 2 , the permeability is 0, the fireproof performance is A-grade non-combustible, and the composite fiber cloth air pipe 1 can transport air with a temperature lower than 80℃ for a long time.

[0058] In an embodiment of the utility model, the composite fiber cloth air pipe 1 can be flattened and laid when not in use, and can be rolled up for storage.

[0059] In an embodiment of the utility model, the outer surface of the composite fiber cloth air pipe 1 is marked with the rocket model, the launch tower number, the installation height or the platform layer number, and the air pipe diameter, which facilitates identification.

[0060] Specifically, the low-resistance movable end device for the rocket anti-condensation air supply system of the utility model further comprises an air leakage prevention zipper 8 connected between the flared part 5 and the first horizontal pipe 1a, the first horizontal pipe 1a and the elbow 3, the elbow 3 and the first vertical pipe 1b, the elbow 3 and the second horizontal pipe 1c, the elbow 3 and the second vertical pipe 1d, and the second vertical pipe 1d and the variable-diameter elbow 4.

[0061] In an embodiment of the utility model, the composite fiber cloth air pipe 1, the elbow 3, the variable-diameter elbow 4 and the flared part 5 of the utility model are connected by the air leakage prevention zipper 8, a certain number of straight pipe sections are provided as spare parts, both ends of the straight pipe sections are connected by the air leakage prevention zipper, the L1-L4 pipe sections of the composite fiber cloth air pipe 1 can be connected according to the actual needs on the spot, the length of L1-L4 can be changed, and the versatility of the device of the utility model is greatly improved.

[0062] In an embodiment of the utility model, the leakproof zipper 8 is provided by composite fiber cloth air pipe manufacturer.

[0063] Specifically, the quick mounting clamp 2 is made of stainless steel, the width of the quick mounting clamp 2 is set to 2.8-3.2 cm, and the thickness is set to 1.8-2.2 mm.

[0064] In an embodiment of the utility model, the quick mounting clamp 2 is made of stainless steel, the width of the quick mounting clamp 2 is set to 2.8-3.2 cm, and the thickness is set to 1.8-2.2 mm.

[0065] Please refer to Figure 2 , Figure 2 The structure diagram of the bend of the low-resistance movable tail end device for the rocket anti-condensation air supply system is provided in the embodiment of the application. The bend 3 is internally provided with three flexible wire loops 3a, the turning angle of the bend 3 is 90°, the curvature radius is 1, and the caliber size and the material of the bend 3 are the same as those of the composite fiber cloth air pipe 1.

[0066] In an embodiment of the utility model, the bend 3, the turning angle of which is 90°, the curvature radius of which is 1, the caliber and the material of which are the same as those of the composite fiber cloth air pipe 1, is internally provided with three flexible wire loops 3a in order to ensure the flow area at the turning position, reduce the resistance of the device, and ensure the air supply volume.

[0067] Please refer to Figure 3 , Figure 3 The structure diagram of the variable-diameter bend of the low-resistance movable tail end device for the rocket anti-condensation air supply system is provided in the embodiment of the application. The large-caliber side of the variable-diameter bend 4 is provided with a 10 cm long circular air pipe close to the rocket hatch connecting piece 7.

[0068] In an embodiment of the utility model, the variable-diameter bend 4, the turning angle of which is 90°, the curvature radius of which is 1, the caliber of one end of which is the same as that of the composite fiber cloth air pipe 1, and the caliber of the other end of which needs to be expanded to No. 1, i.e. the variable-diameter bend of which one end is DN100, the caliber of the other end of which is expanded to DN125, the caliber of DN125 is expanded to DN150, the caliber of DN150 is expanded to DN200, the caliber of DN200 is expanded to DN250, and the caliber of DN250 is expanded to DN300. The material of the variable-diameter bend 4 is the same as that of the composite fiber cloth air pipe 1, four flexible wire loops 4a are internally arranged in the bend in order to ensure the flow area at the turning position, reduce the resistance of the device, and ensure the air supply volume.

[0069] In an embodiment of the utility model, the variable diameter elbow 4, its large diameter side adds 10cm long circular air pipe, pipe diameter is same with large diameter, and is curled with hard steel wire ring at the end, and is convenient to connect.

[0070] Please refer to Figure 4 , Figure 4 The structure diagram of the flared portion of the low-resistance movable end device of the rocket anti-condensation air supply system is provided in the embodiment of the application.

[0071] In an embodiment of the utility model, the flared portion 5, one end pipe diameter is same with composite fiber cloth air pipe 1, and the other end pipe diameter needs to be enlarged, namely, one end is DN100 flared portion, and the other end pipe diameter is enlarged to DN125, DN125 is enlarged to DN150, DN150 is enlarged to DN200, DN200 is enlarged to DN250, and DN250 is enlarged to DN300.

[0072] Specifically, the overlapping length between the variable diameter elbow 4 and the rocket hatch connecting piece 7 is not less than 6cm, and the overlapping length between the flared portion 5 and the end butt joint 6 is not less than 6cm.

[0073] In an embodiment of the utility model, the variable diameter elbow 4 and the rocket hatch connecting piece 7 are clamped through the quick mounting clamp 2, in order to ensure firm connection, the overlapping length L0 between the variable diameter elbow 4 and the rocket hatch connecting piece 7 is not less than 6cm.

[0074] In an embodiment of the utility model, the flared portion 5 and the end butt joint 6 are clamped through the quick mounting clamp 2, in order to ensure firm connection, the overlapping length L0 between the flared portion 5 and the end butt joint 6 is not less than 6cm.

[0075] In an embodiment of the utility model, the rocket anti-condensation air supply system is butt jointed at the end butt joint 6 of the launching tower, and the end butt joint 6 is set during the construction stage of the launching tower.

[0076] In an embodiment of the utility model, the rocket hatch connecting piece 7 is provided by a space department, and is a shaped product.

[0077] In summary, the low resistance type movable tail end device for the rocket dewing prevention air supply system comprises a composite fiber cloth air pipe, a quick mounting clamp, an elbow, a variable diameter elbow and an expanding mouth, and has the characteristics of small resistance, light weight, convenient disassembly and reassembly and easy storage.

[0078] The above embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A low-resistance, movable tip device for a rocket anti-icing air supply system, characterized by: It comprises composite fiber cloth air pipe (1), quick mounting clamp (2), elbow (3), variable diameter elbow (4), flared mouth (5), wherein, Variable diameter elbow (4) is arranged at the front end of the low resistance type movable tail end device, the variable diameter elbow (4) is connected with the rocket hatch connector (7), and the variable diameter elbow (4) and the rocket hatch connector (7) are clamped through the quick mounting clamp (2); The flared mouth (5) is arranged at the rear end of the low resistance type movable tail end device, the flared mouth (5) is connected with the rocket anti-condensation air supply system at the end of the launch tower The docking interface (6) is connected, and the flared mouth (5) and the end docking interface (6) are clamped through the quick mounting clamp (2); The composite fiber cloth air pipe (1) is connected with the flared mouth (5) at one end, and the other end of the composite fiber cloth air pipe (1) is connected with the variable diameter elbow (4); The composite fiber cloth air pipe (1) comprises a plurality of horizontal pipes and a plurality of vertical pipes, and the horizontal pipes and the vertical pipes are connected through the elbow (3).

2. The low-drag, movable tip device for a rocket anti-icing air supply system of claim 1, wherein, The composite fiber cloth air pipe (1) comprises: The first horizontal pipe (1a) is connected with the flared mouth (5) at one end, and the other end of the first horizontal pipe (1a) is connected with one end of the first vertical pipe (1b) through the elbow (3); The first vertical pipe (1b) is connected with one end of the second horizontal pipe (1c) through the elbow (3); The second horizontal pipe (1c) is connected with one end of the second vertical pipe (1d) through the elbow (3); The other end of the second vertical pipe (1d) is connected with the variable diameter elbow (4).

3. The low-drag, movable tip device for a rocket anti-icing air supply system of claim 2, wherein: The pipe diameter of the composite fiber cloth air pipe (1) is the same as the caliber of the end docking interface (6) and the rocket hatch connector (7), and the pipe diameter of the composite fiber cloth air pipe (1) is set to φ100-φ250.

4. The low-drag, movable tip device for a rocket anti-icing air supply system of claim 2, wherein: The length of the first horizontal pipe (1a) is set to be less than 0.3m, the vertical height of the first vertical pipe (1b) is set to be less than 2.5m, the length of the second horizontal pipe (1c) is set to be less than 4m, and the vertical height of the second vertical pipe (1d) is set to be less than 1.5m.

5. The low-drag, movable tip device for a rocket anti-icing air supply system of claim 2, wherein: The composite fiber cloth air duct (1) has a friction resistance coefficient of not more than 0.025, and a self weight of 300-500 g / m 2 , a permeability of 0, and a fireproof performance of A grade non-combustible.

6. The low-drag, movable tip device for a rocket anti-icing air supply system of claim 2, wherein, It also includes: The air leakage prevention zipper (8) is connected between the flared mouth (5) and the first horizontal pipe (1a), the first horizontal pipe (1a) and the elbow (3), the elbow (3) and the first vertical pipe (1b), the elbow (3) and the second horizontal pipe (1c), the elbow (3) and the second vertical pipe (1d), and the second vertical pipe (1d) and the variable diameter elbow (4).

7. The low-drag, movable tip device for a rocket anti-icing air supply system of claim 1, wherein, The quick mounting clamp (2) is made of stainless steel, the width of the quick mounting clamp (2) is set to be 2.8-3.2cm, and the thickness is set to be 1.8-2.2mm.

8. The low-drag, movable tip device for a rocket anti-icing air supply system of claim 1, wherein: The inside of the elbow (3) is provided with three flexible steel wire loops (3a), the turning angle of the elbow (3) is 90°, the curvature radius is 1, and the caliber size and material of the elbow (3) are the same as those of the composite fiber cloth air pipe (1).

9. The low-drag, movable tip device for a rocket anti-icing air supply system of claim 1, wherein: The large-diameter side of the variable-diameter elbow (4) is provided with a 10cm-long circular air pipe close to the rocket hatch connector (7).

10. The low-drag, movable tip device for a rocket anti-icing air supply system of claim 1, wherein: The overlap length between the variable-diameter elbow (4) and the rocket hatch connector (7) is not less than 6cm, and the overlap length between the flared end (5) and the terminal butt joint (6) is not less than 6cm.

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