Rocket launcher

Abstract

The present invention relates to the field of rocket launching technology, and in particular to a rocket ejection launch device, including a base and at least two launch positioning components, each launch positioning component including a positioning plate and a driving component, the positioning plate is connected to the base through the driving component, the driving component is suitable for driving the positioning plate to switch between a first position and a second position, in the first position, all the positioning plates surround a launch tube, the inner side surface of the launch tube is adapted to the circumferential surface of the rocket, the launch tube extends along the height direction of the rocket and has a set length, and in the second position, the positioning plates are dispersed away from each other. The present invention has a simple structure and is convenient for assembly and transportation. In view of the modular design characteristics of the existing small solid rocket transport launch vehicle, the ejection launch device is replaced and installed with the existing launch platform, which greatly reduces the initial development costs and shortens the development cycle. It can be transported with the transport launch vehicle to achieve the purpose of mobile launch.

Description

Technical Field

[0001] The present invention relates to the technical field of rocket launching, and in particular to a rocket ejection launching device. Background Art

[0002] In the field of rocket launch, small solid rockets have small carrying capacity and high cost. In addition, the pyrotechnics used in the launch process are difficult to manage and there are risks in the use process. Therefore, the concept of rocket ejection launch has been proposed. However, the ejection launch device needs to be reused. The existing ejection launch device is difficult to meet the good mobility requirements during the reuse process, which limits its application in the transfer and transportation of the launch vehicle. Summary of the invention

[0003] The present invention provides a rocket ejection launching device to solve one of the defects in the prior art. The structure is simple and the assembly and transportation are convenient. According to the modular design characteristics of the existing small solid rocket transport launch vehicle, the ejection launching device is replaced and installed with the existing launch platform, which greatly reduces the initial development cost and shortens the development cycle. The device can be transported along with the transport launch vehicle to achieve the purpose of mobile launch.

[0004] The present invention provides a rocket ejection launch device, comprising a base and at least two launch positioning assemblies, each of the launch positioning assemblies comprising a positioning plate and a driving component, the positioning plate being connected to the base via the driving component, the driving component being suitable for driving the positioning plate to switch between a first position and a second position, in the first position, all the positioning plates enclose a launch tube, the inner side surface of the launch tube is adapted to the circumferential surface of a rocket, the launch tube extends along the height direction of the rocket and has a set length, and in the second position, the positioning plates are dispersed away from each other.

[0005] According to a rocket ejection launching device provided by the present invention, there are two launch positioning assemblies, and the two positioning plates are both semi-cylindrical plates.

[0006] A rocket ejection launch device provided according to the present invention also includes an adapter, which is suitable for being arranged on the circumferential surface of the rocket. The positioning plate is in the first position, and the adapter is supported between the positioning plate and the rocket.

[0007] According to a rocket ejection launching device provided by the present invention, a buffer protrusion is provided on the inner side surface of the upper end of the positioning plate, and when the positioning plate is in the first position, the buffer protrusion is suitable for preventing the adapter from moving with the rocket.

[0008] According to a rocket ejection launching device provided by the present invention, a stopper is provided at the upper end of the positioning plate, and when the positioning plate is in the first position, the stopper is suitable for fixing the rocket.

[0009] According to a rocket ejection launching device provided by the present invention, two adjacent positioning plates are respectively provided with matching guide holes and guide columns at the butt edges, and the positioning plates are switched between the second position and the first position, and the guide columns can move along the guide holes.

[0010] According to a rocket ejection launching device provided by the present invention, two adjacent positioning plates are provided with locking components at the butt edges, and when the positioning plates are in the first position, the locking components butt-lock the adjacent positioning plates, and when the positioning plates are in the second position, the locking components butt-unlock the adjacent positioning plates.

[0011] According to a rocket ejection launching device provided by the present invention, the base includes a shell, a phase change generator and an ejection base, the phase change generator is arranged in the shell, the ejection base is arranged on the outside of the shell and connected to the phase change generator, the ejection base is provided with a sealing portion at the position where it is connected to the rocket, and each of the launch positioning components is arranged around the ejection base.

[0012] According to a rocket ejection launching device provided by the present invention, sealing components are provided at the butt edges of adjacent positioning plates.

[0013] According to a rocket ejection launching device provided by the present invention, the driving component includes a connecting rod and a hydraulic cylinder, the fixed end of the hydraulic cylinder is hinged to the base, the movable end of the hydraulic cylinder is hinged to the positioning plate, one end of the connecting rod is hinged to the base, and the other end is fixedly connected to the positioning plate.

[0014] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: The rocket ejection launch device of the embodiment of the present invention is mainly composed of a base and a launch positioning assembly. There are at least two launch positioning assemblies, each of which is composed of a positioning plate and a driving component. The driving component connects the positioning plate to the base, and the driving component can also drive the positioning plate to move so that the positioning plate switches between a first position and a second position. In the launch preparation stage, the rocket is erected until the base is in a vertical state. The driving component drives the positioning plate to move from the second position to the first position. The positioning plates are close to each other and gathered together. In the first position, all the positioning plates are in a vertical state and are enclosed in a cylindrical shape to form a launch tube around the circumference of the rocket, ensuring the stable vertical state of the rocket during launch and ensuring the accuracy and effect of the rocket launch posture. In the launch completion stage, the rocket is launched upward and leaves the launch tube. The driving component drives the positioning plate to move from the first position to the second position. The positioning plates are separated and dispersed. In the second position, there is a certain distance between the positioning plates, and the components of the launch tube are separated.

[0015] The launch tube extends in the height direction of the rocket, that is, the length direction of the launch tube is the height direction of the rocket in the upright state, and the length of the positioning plate is the set length of the launch tube, so that the launch tube is fixed in a certain height range on the circumferential surface of the rocket, which increases the positioning range of the launch positioning assembly for the rocket and improves the stability of the rocket positioning fixation.

[0016] The rocket ejection launching device of the present invention has a simple structure and is convenient for assembly and transportation. According to the modular design characteristics of the existing small solid rocket transport launch vehicle, the ejection launching device is replaced and installed with the existing launch platform, which greatly reduces the initial development cost and shortens the development cycle. The device can be transported along with the transport launch vehicle to achieve the purpose of mobile launch.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic structural diagram of a rocket ejection launching device provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a base of a rocket ejection launch device provided by an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a positioning plate of a rocket ejection launch device provided by an embodiment of the present invention; Figure 4 It is a structural schematic diagram of the first position of the rocket ejection launching device provided by an embodiment of the present invention; Figure 5 It is a structural schematic diagram of the second position of the rocket ejection launching device provided in an embodiment of the present invention.

[0020] Reference numerals: 100, base; 110, shell; 120, ejection base; 130, support base; 140, tail base; 150, first connecting base; 160, second connecting base; 170, phase change generator; 180, locking rod; 200, launch positioning assembly; 210, positioning plate; 211, buffer protrusion; 212, stopper; 213, guide hole; 214, guide column; 215, locking component; 216, sealing component; 220, connecting rod; 230, hydraulic cylinder; 300, adapter; 400, rocket. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0024] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0026] like Figure 1 , Figure 4 and Figure 5 As shown, the rocket ejection launch device provided by the embodiment of the present invention includes a base 100 and at least two launch positioning assemblies 200, each launch positioning assembly 200 includes a positioning plate 210 and a driving component, the positioning plate 210 is connected to the base 100 through the driving component, the driving component is suitable for driving the positioning plate 210 to switch between a first position and a second position. In the first position, all the positioning plates 210 surround a launch tube, the inner side surface of the launch tube is adapted to the circumferential surface of the rocket 400, the launch tube extends along the height direction of the rocket 400 and has a set length, and in the second position, the positioning plates 210 are dispersed away from each other.

[0027] The rocket ejection launch device of the embodiment of the present invention is mainly composed of a base 100 and a launch positioning assembly 200. There are at least two launch positioning assemblies 200, and each launch positioning assembly 200 is composed of a positioning plate 210 and a driving component. The driving component connects the positioning plate 210 to the base 100, and the driving component can also drive the positioning plate 210 to move so that the positioning plate 210 switches between a first position and a second position. In the launch preparation stage, the rocket 400 is erected until the base 100 is in a vertical state, and the driving component drives the positioning plate 210 to move from the second position to the first position, and each positioning plate 210 is close to each other and gathered. In the first position, all the positioning plates 210 are in a vertical state and are enclosed in a cylindrical shape to form a launch tube surrounding the circumferential surface of the rocket 400, thereby ensuring the stable vertical state of the rocket 400 during launch and ensuring the accuracy and effect of the launch posture of the rocket 400. During the launch completion phase, the rocket 400 is launched upward and leaves the launch tube, and the driving component drives the positioning plate 210 to move from the first position to the second position. The positioning plates 210 are dispersed away from each other. In the second position, there is a certain distance between the positioning plates 210, and the components of the launch tube are separated.

[0028] The launch tube extends in the height direction of the rocket 400, that is, the length direction of the launch tube is the height direction of the rocket 400 in the upright state, and the length of the positioning plate 210 is the set length of the launch tube, so that the launch tube is fixed on the circumferential surface of the rocket 400 within a certain height range, thereby increasing the positioning range of the launch positioning assembly 200 for the rocket 400 and improving the stability of the positioning and fixation of the rocket 400.

[0029] The rocket ejection launching device of the present invention has a simple structure and is convenient for assembly and transportation. According to the modular design characteristics of the existing small solid rocket 400 transport launch vehicle, the ejection launching device is replaced and installed with the existing launch platform, which greatly reduces the initial development cost and shortens the development cycle. The device can be transported with the transport launch vehicle to achieve the purpose of mobile launch.

[0030] In this embodiment, the set length of the launch tube can be set to 50%-60% of the length of the rocket, providing a large range of support and fixation in the height direction of the rocket, thereby stabilizing the rocket's attitude.

[0031] According to an embodiment provided by the present invention, there are two launch positioning assemblies 200, and both positioning plates 210 are semi-cylindrical plates. In this embodiment, the rocket ejection launch device is composed of a base 100 and two launch positioning assemblies 200, so two driving components are arranged on the base 100, each driving component is connected to a positioning plate 210, and both positioning plates 210 are semi-circular arc plates, and the shape, size and length are the same. In the first position, the two sides of the two positioning plates 210 are docked to form a cylindrical launch tube, and the internal space of the launch tube is used to place the rocket 400, and the inner side of the launch tube is the inner side of the positioning plate 210. The two launch positioning assemblies 200 are arranged relative to each other, which further simplifies the composition of the rocket ejection launch device, and the opening and closing of the positioning plate 210 is easier to control.

[0032] In other embodiments, the number of the launch positioning components 200 can be selected according to actual needs, and the curvature of the corresponding positioning plate 210 can also be changed accordingly. The positioning plate 210 can also be a plate structure with only the inner side surface being a curved surface.

[0033] like Figure 3As shown, according to an embodiment provided by the present invention, the rocket ejection launch device further includes an adapter 300, the adapter 300 is suitable for being arranged on the circumferential surface of the rocket 400, the positioning plate 210 is in the first position, and the adapter 300 is supported between the positioning plate 210 and the rocket 400. In this embodiment, in the launch preparation stage, the adapter 300 is located in the launch tube, and the adapter 300 is arranged on the circumferential surface of the rocket 400, and there is a certain gap between the circumferential surface of the rocket 400 and the inner side surface of the launch tube. The adapter 300 can be supported between the rocket 400 and the launch tube, and the shaking of the rocket 400 is limited in the launch tube, so as to further improve the rocket ejection launch device's effect of stabilizing the launch posture of the rocket 400.

[0034] In this embodiment, there may be a plurality of adapters 300, which are arranged along the height direction of the rocket 400, and the intervals between adjacent adapters 300 may be the same.

[0035] According to an embodiment provided by the present invention, a buffer protrusion 211 is provided on the inner side surface of the upper end of the positioning plate 210. The positioning plate 210 is in the first position, and the buffer protrusion 211 is suitable for preventing the adapter 300 from moving with the rocket 400. In this embodiment, the upper end of the positioning plate 210 is surrounded by the exit of the launch tube, and the rocket 400 rises from this exit to leave the launch tube, so the buffer protrusion 211 is provided on the inner side surface of the upper end of the positioning plate 210, and the buffer protrusion 211 reduces the inner diameter of the exit of the launch tube to a certain extent. During the launch of the rocket 400, the adapter 300 rises in the launch tube together with the rocket 400. When reaching the buffer protrusion 211, the buffer protrusion 211 can intercept the adapter 300, and block the adapter 300 in the launch tube to prevent the adapter 300 from further rising with the rocket 400.

[0036] According to an embodiment provided by the present invention, a stopper 212 is provided at the upper end of the positioning plate 210, and the positioning plate 210 is in the first position, and the stopper 212 is suitable for fixing the rocket 400. In this embodiment, in the launch preparation stage, the rocket 400 is erected on the base 100, and after the positioning plate 210 is folded into a launch tube, the stopper 212 located at the exit of the launch tube is fixedly connected with the rocket 400, thereby firmly fixing the rocket 400 in the launch tube.

[0037] The stopper 212 can prevent the rocket 400 from shaking or shifting due to accidental vibration or movement and can be safely locked. In the non-launching state, the stopper 212 can safely lock the rocket 400 to avoid accidental launch of the rocket 400 due to misoperation or other factors, thereby ensuring the safety of personnel and equipment. When all preparations are completed and the rocket 400 has passed all inspections, releasing the stopper 212 can help ensure that the rocket 400 is at the correct launch angle and direction at launch to achieve an accurate launch trajectory. In some cases, especially for solid fuel rockets 400, the stopper 212 must also withstand the internal pressure after the fuel is filled until the launch command is issued. A well-designed stopper 212 can quickly and reliably release the rocket 400 when a launch command is received, without affecting the timeliness and accuracy of the launch process.

[0038] According to an embodiment provided by the present invention, two adjacent positioning plates 210 are respectively provided with matching guide holes 213 and guide posts 214 at the butt edges. The positioning plates 210 switch between the second position and the first position, and the guide posts 214 can move along the guide holes 213. In this embodiment, two adjacent positioning plates 210 are provided with guide components at their butt edges, and the guide components are composed of guide holes 213 and guide posts 214, that is, one positioning plate 210 is provided with guide holes 213 at the side, and the other positioning plate 210 is provided with guide posts 214 at the side. When the positioning plates 210 are relatively close to or far away from each other, the guide posts 214 can be inserted into the guide holes 213 and move in the guide holes 213 to guide and stabilize the butt action of the positioning plates 210, and avoid the butt misalignment of the positioning plates 210, which may cause adverse effects on the launch of the rocket 400.

[0039] According to an embodiment provided by the present invention, two adjacent positioning plates 210 are provided with locking components 215 at the docking edges. When the positioning plates 210 are in the first position, the locking components 215 dock and lock the adjacent positioning plates 210. When the positioning plates 210 are in the second position, the locking components 215 dock and unlock the adjacent positioning plates 210.

[0040] In this embodiment, two adjacent positioning plates 210 are provided with locking components 215 at their butted edges, and a plurality of locking components 215 may be evenly distributed along the length direction of the launch tube to lock and connect adjacent positioning plates 210 along the entire length direction of the positioning plates 210. Each locking component 215 is composed of a lock buckle and a lock ring, that is, a lock buckle is provided at the side of one positioning plate 210, and a lock ring is provided at the side of the other positioning plate 210 accordingly.

[0041] When the positioning plate 210 is in the first position, during the launch preparation process, the lock buckle and the lock ring are connected and locked to ensure that the launch tube surrounded by the positioning plate 210 is formed and connected, while ensuring the fixed positioning of the inner rocket 400. During launch, the lock buckle and the lock ring are disconnected and unlocked to ensure that the positioning plates 210 can be smoothly separated to reach the second position.

[0042] like Figure 1 and Figure 2 As shown, according to an embodiment provided by the present invention, the base 100 includes a shell 110, a phase change generator 170 and an ejection base 120, the phase change generator 170 is arranged in the shell 110, the ejection base 120 is arranged on the outside of the shell 110 and is connected to the phase change generator 170, the ejection base 120 is provided with a sealing portion at the position where it is connected to the rocket 400, and each launch positioning assembly 200 is arranged around the ejection base 120.

[0043] In this embodiment, the base 100 is composed of a shell 110, a phase change generator 170 and an ejection base 120. The phase change generator 170 is a gas phase change generator, which is arranged inside the shell 110 and connected to the ejection base 120 on the upper surface of the outer side of the shell 110. The rocket 400 is erected on the ejection base 120, and the kinetic energy generated by the gas phase change acts on the ejection base 120 to eject the rocket 400, thereby realizing the ejection launch of the rocket 400. The sealing part is used to seal between the ejection base 120 and the tail of the rocket 400 to prevent the gas in the phase change generator 170 from overflowing and increase the ejection strength.

[0044] The use of gas phase change catapult launch allows the Rocket 400 to obtain a certain initial velocity before the engine ignition, which not only avoids the management of pyrotechnics, but also facilitates the cleaning of the ejection device because there is no residue in the gas phase change ejection, thus achieving the purpose of reusable ejection device.

[0045] In this embodiment, a supporting bracket 130 and a tail stock bracket 140 are further provided on the base 100 . The tail stock bracket 140 is connected to the housing 110 via the supporting bracket 130 , and the ejection base bracket 120 is finally disposed on the tail stock bracket 140 .

[0046] According to an embodiment provided by the present invention, adjacent positioning plates 210 are provided with sealing components 216 at the butting edges. In this embodiment, when the positioning plates 210 are in the first position, the edges of the positioning plates 210 are sealed and connected by the sealing components 216, thereby ensuring the sealing performance of the launch tube, and cooperating with the sealing portion provided at the position where the ejection base 120 is connected to the rocket 400, further preventing the gas in the phase change generator 170 from overflowing, thereby increasing the ejection strength.

[0047] According to an embodiment provided by the present invention, the driving component includes a connecting rod 220 and a hydraulic cylinder 230, the fixed end of the hydraulic cylinder 230 is hinged to the base 100, the movable end of the hydraulic cylinder 230 is hinged to the positioning plate 210, one end of the connecting rod 220 is hinged to the base 100, and the other end is fixedly connected to the positioning plate 210. In this embodiment, the driving component is composed of a connecting rod 220 and a hydraulic cylinder 230, the connecting rod 220 is fixedly connected to the positioning plate 210, and then hinged to the base 100, so that the positioning plate 210 can be rotated at a certain angle on the base 100, the movable end of the hydraulic cylinder 230 is hinged to the positioning plate 210, and the fixed end is hinged to the base 100, which can provide driving force for the rotation of the positioning plate 210, and at the same time, the hydraulic cylinder 230 can realize its own rotation on the base 100 while driving the positioning plate 210 to rotate.

[0048] In this embodiment, in the first position, the positioning plate 210 is in a vertical upright state, and in the second position, the positioning plate 210 is in a horizontal state, that is, the hydraulic cylinder 230 drives the positioning plate 210 to rotate 90°. In other embodiments, when the hydraulic cylinder 230 drives the positioning plate 210 to reach the second position, the length direction of the positioning plate 210 may be at a certain angle to the horizontal plane and may not reach a horizontal state, so that the various parts of the launch tube can be dispersed and opened.

[0049] In other embodiments, the driving component may also be a device for driving the positioning plate 210 to move horizontally, that is, when in the first position and the second position, the positioning plate 210 may always remain in a vertical upright state.

[0050] In this embodiment, a first connection seat 150 and a second connection seat 160 are further provided on the housing 110. The first connection seat 150 is used to be hinged with the fixed end of the hydraulic cylinder 230, and the second connection seat 160 is used to be hinged with the connecting rod 220. A locking rod 180 is provided on the housing 110. After the locking rod 180 is unlocked, the housing 110 can be opened and the phase change generator 170 can be placed in the housing 110. After the locking rod 180 is locked, the housing 110 can be closed and the phase change generator 170 can be sealed in the housing 110, so as to facilitate the disassembly and assembly of the base 100.

[0051] After the final assembly and testing of Rocket 400 is completed at the technical site, the Rocket 400 is transported from the technical site to the launch site by a transport launch vehicle and erected on the base 100 to be ready for launch. The specific process is as follows: a) The base 100 is transported from the technical position to the launch position along with the erection and transportation system and the rocket 400, and the contact between the base 100 and the ground is checked. The base 100 is adjusted as necessary to ensure reliable contact between the base 100 and the ground; b) installing the launch positioning assembly 200 onto the base 100; c) The rocket 400 is erected to a vertical position; d) The driving components drive the positioning plates 210 to stand up to a vertical state and connect and fix them; e) Rocket 400 launch; f) The positioning plates 210 are unlocked and driven back to level by driving components; g) removing the launch positioning assembly 200 from the base 100; h) The base 100 is transported from the launching area to the technical parking area along with the erection and transportation system.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rocket ejection launch device, characterized in that: It includes a base and at least two launch positioning assemblies, each of which includes a positioning plate and a driving component, the positioning plate is connected to the base through the driving component, and the driving component is suitable for driving the positioning plate to switch between a first position and a second position. In the first position, all the positioning plates surround a launch tube, the inner side surface of the launch tube is adapted to the circumferential surface of the rocket, the launch tube extends along the height direction of the rocket and has a set length, and in the second position, the positioning plates are dispersed away from each other.

2. The rocket ejection launch device according to claim 1, characterized in that: There are two launch positioning assemblies, and both positioning plates are semi-cylindrical plates.

3. The rocket ejection launch device according to claim 1, characterized in that: It also includes an adapter, which is suitable for being arranged on the circumferential surface of the rocket. The positioning plate is in the first position, and the adapter is supported between the positioning plate and the rocket.

4. The rocket ejection launch device according to claim 3, characterized in that: A buffer protrusion is provided on the inner side surface of the upper end of the positioning plate. When the positioning plate is in the first position, the buffer protrusion is suitable for preventing the adapter from moving with the rocket.

5. The rocket ejection launch device according to claim 1, characterized in that: A stopper is provided at the upper end of the positioning plate, and when the positioning plate is in the first position, the stopper is suitable for fixing the rocket.

6. The rocket ejection launch device according to claim 1, characterized in that: Two adjacent positioning plates are respectively provided with matching guide holes and guide posts at the butting edges. When the positioning plates are switched between the second position and the first position, the guide posts can move along the guide holes.

7. The rocket ejection launch device according to claim 1, characterized in that: Two adjacent positioning plates are provided with locking components at the butt edges. When the positioning plates are in the first position, the locking components lock the adjacent positioning plates in a butt connection. When the positioning plates are in the second position, the locking components unlock the adjacent positioning plates in a butt connection.

8. The rocket ejection launch device according to claim 1, characterized in that: The base includes a shell, a phase change generator and an ejection base, the phase change generator is arranged in the shell, the ejection base is arranged outside the shell and connected to the phase change generator, the ejection base is provided with a sealing portion at the position where it is connected to the rocket, and each of the launch positioning components is arranged around the ejection base.

9. The rocket ejection launch device according to claim 1, characterized in that: Adjacent positioning plates are provided with sealing components at the butt edges.

10. The rocket ejection launch device according to any one of claims 1 to 9, characterized in that: The driving component includes a connecting rod and a hydraulic cylinder, the fixed end of the hydraulic cylinder is hinged to the base, the movable end of the hydraulic cylinder is hinged to the positioning plate, one end of the connecting rod is hinged to the base, and the other end is fixedly connected to the positioning plate.

Images