A launch box seal cover structure

Abstract

The application relates to a launch box sealing cover structure and belongs to the technical field of rocket launching. The launch box sealing cover structure comprises a top cover arranged on a launching port of a launch box, a bottom plate arranged between the launch box and the top cover, a flow guide hole communicated with the launch box arranged on the bottom plate, and a gas storage and release device. The gas storage and release device comprises a gas storage cylinder and a controller. The controller is used for controlling the gas storage cylinder to release compressed gas so as to separate the top cover and the bottom plate from the launch box. According to the application, high-pressure gas is released by the gas storage cylinder and discharged through the bottom flow guide hole. The top cover, the bottom plate and a sealing gasket are separated from the launch box body under the action of the airflow reaction force. Since the front and rear sizes of the bottom flow guide hole are different, the force of the gas on the area near the large hole is greater than that on the area near the small hole. The top cover is turned away from the launch box under the action of the front and rear airflows, so that the top cover, the sealing gasket and the bottom plate are separated from the launch box.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rocket launching, in particular to a launching box sealing cover structure. BACKGROUND

[0002] In order to meet the requirements of heat preservation, rain and dust prevention, etc., the sealing cover structure needs to be arranged at the head of the offshore rocket launching box. When the aircraft is launched, the sealing cover structure at the head of the launching box needs to be detached to avoid the aircraft out of the box.

[0003] One of the prior art solutions is that the sealing cover structure is connected with the launching box body through flange threads. Before launching, the sealing cover connecting bolts are manually detached, and then the sealing cover structure is lifted away from the launching box body by using a lifting ship supported at the site. On the one hand, this solution requires a lifting ship to be supported in the sea area of the launching site, and the lifting ship operation space needs to be considered when the site is constructed. On the other hand, the lifting operation requires a high level of skill from the driver, and an unsafe operation may endanger the safety of the aircraft. The lifting operation and the processes of the lifting vehicle entering and leaving the site will increase the launching preparation time and cause the aircraft to miss the optimal launch window.

[0004] The second prior art solution is that the sealing cover structure is connected with the launching box body through a hinge. Before launching, the sealing cover is opened to a safe angle by using an opening mechanism to avoid the trajectory of the aircraft out of the box. This solution has the following problems. Firstly, the sealing cover structure is still connected with the launching box during launching, and the dynamic response is complex under the action of high-temperature and high-pressure gas when the aircraft is out of the box. It is difficult to ensure the structural design strength, which directly leads to the failure of the flight. Secondly, after launching is completed, the repair and maintenance cost of the part of the structure eroded by the splash is high, and the performance degradation of the repaired part is difficult to quantify and evaluate, which affects the reliability of the second launch.

[0005] In summary, the existing rocket launching box has the problem that the sealing cover is not convenient to separate from the box during rocket launching. SUMMARY

[0006] The embodiments of the present application provide a launching box sealing cover structure to solve the problem that the sealing cover is not convenient to separate from the box in the related art.

[0007] The embodiments of the present application provide a launching box sealing cover structure, which comprises

[0008] The top cover is arranged on the launching port of the launching box.

[0009] The top cover is arranged on the launching port of the launching box.

[0010] The bottom plate is arranged between the launching box and the top cover, and the flow guide hole communicating with the launching box is formed in the bottom plate.

[0011] The gas storage and release device comprises a gas cylinder and a controller, and the controller is used for controlling the gas cylinder to release compressed gas to separate the top cover and the bottom plate from the launching box.

[0012] In some embodiments, a sealing gasket is arranged between the bottom plate and the top cover for sealing.

[0013] In some embodiments, a flange flash is arranged at the edge of the top cover, and the top cover is connected with the launching box and the bottom plate through the flange flash.

[0014] In some embodiments, a plurality of through holes are arranged on the flange flash at equal intervals.

[0015] A plurality of connecting holes corresponding to the through holes are arranged on the bottom plate.

[0016] In some embodiments, the connecting holes comprise alternating threaded holes and light holes.

[0017] In some embodiments, the top cover is threadedly connected with the bottom plate through a bolt sequentially passing through one of the through holes on the top cover and the sealing gasket.

[0018] The top cover is bolted through another one of the through holes on the top cover, the sealing gasket, the light hole on the bottom plate, and the outer rim on the launching box.

[0019] In some embodiments, the plurality of flow guide holes are arranged at equal intervals in a ring shape around the axis of the bottom plate, and the diameters of the plurality of flow guide holes increase sequentially.

[0020] In some embodiments, the sealing gasket is made of rubber material.

[0021] In some embodiments, the top cover is made of carbon fiber composite material.

[0022] In some embodiments, the bottom plate is a circular aluminum plate.

[0023] The launching box sealing cover structure provided by the embodiments of the present application can separate the top cover, the sealing gasket, and the bottom plate from the launching box through the controller receiving a signal and controlling the gas cylinder to release high-pressure gas through the bottom flow guide hole, and the top cover, the bottom plate, and the sealing gasket are separated from the body of the launching box under the action of the gas flow. Since the diameters of the front and rear flow guide holes are different, the force of the gas on the area near the large hole is greater than that on the area near the small hole, and the top cover will be flipped away from the launching box under the action of the front and rear gas flows, so that the top cover, the sealing gasket, and the bottom plate can be separated from the launching box, thereby avoiding the use of a crane to lift the launching box, which is easy to cause collision with the launcher and damage the launcher. In addition, the use of an opening mechanism to open the sealing cover is easy to cause the launcher to be eroded by fuel, and the sealing cover is still connected with the launching box, which is easy to cause the flight trajectory to deviate. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0025] Figure 1 The first structural schematic diagram provided for the embodiments of the present application;

[0026] Figure 2 The second structural schematic diagram provided for the embodiments of the present application;

[0027] Figure 3 The structural enlarged schematic diagram provided in the embodiments of the present application; Figure 2

[0028] Figure 4 The structural schematic diagram provided for the top cover in the embodiments of the present application;

[0029] Figure 5 The structural schematic diagram provided for the bottom plate in the embodiments of the present application;

[0030] Figure 6 The installation state schematic diagram provided in the embodiments of the present application.

[0031] 1, top cover; 2, bottom plate; 3, gas storage bottle; 4, sealing gasket; 5, flow guide hole; 6, through hole. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0033] The embodiments of the present application provide a launch box sealing cover structure, which can solve the problem that the sealing cover is not convenient to separate from the box body.

[0034] Referring to Figures 1-2 the drawing, the embodiments of the present application provide a launch box sealing cover structure, which comprises

[0035] The top cover 1, the bottom plate 2 and the gas storage and release device.

[0036] ​The top cover 1 is arranged on the launching port of the launching box, the top cover 1 is a combined structure of a semicircular shell and a cylindrical shell, the radius of the semicircular shell on the top cover 1 is 4460 mm, the height of the cylindrical shell on the top cover 1 is 1120 mm, the thickness of the top cover 1 is 5 mm, and the top cover 1 is a cover shell on the launching port of the launching box and is used for closing the launching port.

[0037] The bottom plate 2 is arranged between the launching box and the top cover 1, the thickness of the bottom plate 2 is 60 mm, the radius of the bottom plate 2 is 4600 mm, the bottom plate 2 is provided with a flow guide hole 5 communicating with the launching box, the bottom plate 2 and the top cover 1 form a cover with a cavity, and the rocket in the launching box is blocked, the cavity formed between the bottom plate 2 and the top cover 1 is provided with a gas storage and release device, and the high-pressure gas released by the gas storage and release device can guide the release direction and the size of the reaction force through the flow guide hole 5.

[0038] The gas storage and release device comprises a gas cylinder 3 and a controller, is used for storing high-pressure gas, and releases the high-pressure gas as power to push the sealing cover away from the launching box when the sealing cover is separated from the launching box, and the controller is used for controlling the gas cylinder to release the high-pressure gas to separate the top cover 1 and the bottom plate 2 from the launching box.

[0039] In the embodiment, the top cover 1 is made of carbon fiber composite material.

[0040] In the embodiment, the bottom plate 2 is a circular aluminum plate.

[0041] In some optional embodiments, as shown in Figures 1-3 The sealing gasket 4 is arranged between the bottom plate 2 and the top cover 1 and is used for sealing, the gap between the bottom plate 2 and the top cover 1 is sealed by the sealing gasket 4, the leakage of the high-pressure gas released by the gas cylinder 3 from the gap between the bottom plate 2 and the top cover 1 is avoided, the power for forming the reaction force is ensured, and the top cover 1 and the bottom plate 2 are separated from the launching box.

[0042] In the embodiment, the sealing gasket 4 is made of rubber material.

[0043] In some optional embodiments, as shown in Figures 1-6 The flange flash is arranged at the edge of the top cover 1, the top cover 1 is connected with the launching box and the bottom plate 2 through the flange flash, and the smooth edge of the top cover 1 cannot be connected with the launching box through the connecting piece.

[0044] In the embodiment, a plurality of through holes 6 are arranged at the flange flash in equal intervals, a plurality of connecting holes corresponding to the through holes 6 are arranged on the bottom plate 2, and the top cover 1 and the bottom plate 2 are connected through the through holes 6 and the corresponding connecting holes.

[0045] In this embodiment, the connecting holes include staggered threaded holes and light holes, which uniformly arrange the individual connections between the bottom plate 2 and the top cover 1, and the connections between the top cover 1, the bottom plate 2, the sealing gasket 4 and the launch box, avoid the angle deviation of the connection position, resulting in unstable connection and gap at the connection position. The threaded holes are counterbores with threads inside, which can individually connect the bottom plate 2 and the top cover 1. The light holes can connect the top cover 1, the sealing gasket 4, the bottom plate 2 and the launch box.

[0046] In this embodiment, the top cover 1 is threadedly connected with the bottom plate 2 through the threaded holes on the top cover 1 and the sealing gasket 4. The top cover 1 is bolted with the launch box through the light holes on the top cover 1, the sealing gasket 4, the bottom plate 2 and the outer edge of the launch box. The individual connection between the top cover 1 and the bottom plate 2 through the bolts can make the top cover 1 and the bottom plate 2 separate from the launch box when the reaction force generated by the gas discharged through the flow guide holes 5 after the release of high-pressure gas in the gas cylinder 3. The bottom plate 2 can still be on the launch box, which blocks the launch box, after the top cover 1 is separated without individual connection. The bolts can make the top cover 1, the bottom plate 2, the sealing gasket 4 and the launch box connect again after the individual connection of the top cover 1 and the bottom plate 2.

[0047] In some optional embodiments, as shown in Figure 1 and Figures 5-6 The flow guide holes 5 are arranged in a ring around the axis of the bottom plate 2 at equal intervals, and the diameters of the flow guide holes 5 increase successively. The gas discharged through the flow guide holes 5 after the release of high-pressure gas in the gas cylinder 3 becomes a compressed gas flow by the restriction of the flow guide holes 5, and the reaction force of the gas flow pushes the top cover 1 to lift the bottom plate 2 to separate from the launch box. Because the diameters of the flow guide holes increase successively, the reaction force of the gas flow ejected from the flow guide holes with large diameters is greater than that from the flow guide holes with small diameters, so that the top cover 1 is pushed away and lifted, and the top cover 1 and the bottom plate 2 are flipped to the side of the flow guide holes with small diameters due to the stronger reaction force of the flow guide holes with large diameters. This avoids the situation that the diameters of the flow guide holes are the same, the top cover 1 and the bottom plate 2 are vertically lifted, and the top cover 1 and the bottom plate 2 fall on the launch box after the release of gas, which cannot be separated.

[0048] The working principle and process of the present application:

[0049] Before the aircraft is ignited, the bolts connecting the top cover 1, the sealing gasket 4 and the bottom plate 2 with the launching box are manually removed, then a cover throwing signal is remotely sent, after the signal is received by the controller, the gas cylinder 3 is controlled to release high-pressure gas to be discharged through the bottom flow guide hole 5, the top cover 1, the bottom plate 2 and the sealing gasket 4 are separated from the body of the launching box under the action of the airflow reaction force, because the sizes of the front and rear of the bottom flow guide hole 5 are different, the force of the gas on the area near the large hole is greater than that on the area near the small hole, the top cover 1 will turn over and leave the launching box under the action of the front and rear airflows, that is, the top cover 1, the sealing gasket 4 and the bottom plate 2 can be separated from the launching box.

[0050] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0052] The above is only a specific embodiment of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A launch box sealing cover structure, characterized in that: include: A top cover (1), the top cover (1) being arranged on the launch port of the launch box; A bottom plate (2), the bottom plate (2) being arranged between the launch box and the top cover (1), and the bottom plate (2) being provided with a guide hole (5) connected to the launch box; A gas storage and release device, the gas storage and release device comprising a gas storage cylinder (3) and a controller, the controller being used to control the gas storage cylinder (3) to release compressed gas to separate the top cover (1) and the bottom plate (2) from the launch box; There are a plurality of guide holes (5), which are arranged in a circular shape with equal spacing around the axis of the bottom plate (2), and the apertures of the guide holes (5) increase sequentially.

2. The launch box sealing cover structure according to claim 1, wherein: A sealing gasket (4) for sealing is also provided between the bottom plate (2) and the top cover (1).

3. The launch box sealing cover structure according to claim 1, wherein: A flange burr is provided at the edge of the top cover (1), and the top cover (1) is connected to the launch box and the bottom plate (2) via the flange burr.

4. The launch box sealing cover structure according to claim 3, wherein: The flange fin is provided with a plurality of through holes (6) arranged at equal intervals; The bottom plate (2) is provided with a plurality of connection holes corresponding to the through holes (6).

5. The launch box sealing cover structure according to claim 4, characterized in that: The connecting holes include threaded holes and light holes that are arranged alternately.

6. The launch box sealing cover structure according to any one of claims 1 to 5, characterized in that: The top cover (1) is threadedly connected to the threaded holes on the bottom plate (2) by bolts passing through a portion of the through holes (6) on the top cover (1) and the sealing gasket (4) in sequence; The top cover (1) is connected by bolts passing through another through hole (6) on the top cover (1), the sealing gasket (4), the light hole on the bottom plate (2) and the outer edge bolts on the emission box in sequence.

7. The launch box sealing cover structure according to claim 2, wherein: The sealing gasket (4) is made of rubber material.

8. The launch box sealing cover structure according to claim 1, wherein: The top cover (1) is made of carbon fiber composite material.

9. The launch box sealing cover structure according to claim 1, wherein: The bottom plate (2) is a circular aluminum plate.

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