Transmitting system and transmitting method

Abstract

The invention discloses a launching system and a launching method, the launching system comprises a launching cylinder, a launcher, a launcher and a protection device, and the launcher, the protection device and the launcher are sequentially arranged in the launching cylinder along the launching direction; the protection device comprises a first shell, a positioning groove is formed in the side, away from the emitter, of the first shell, and the positioning groove is used for containing an emitting object. According to the launching system, the protection device is arranged between the launcher and the launcher which are blocked in the launching cylinder, high-temperature and high-pressure gas and sparks generated when the launcher acts are borne by the protection device, and the launcher is driven to be launched from the launching cylinder in a preset posture through the positioning groove; the situation that the launcher damages the launched object is effectively avoided, and the launching stability of the launched object ejected out of the launching cylinder is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of launchers, and particularly relates to a launch system and a launch method. Background Art

[0002] In the prior art, most launch devices use gunpowder-powered launchers to eject projectiles. The gunpowder-powered launcher uses high-pressure gas generated by gunpowder combustion to push the projectile out of the chamber. However, the high-temperature and high-pressure gas and sparks generated during the gunpowder combustion process may damage the projectile, affecting its performance and reliability. Summary of the Invention

[0003] The main object of the present invention is to overcome the deficiencies of the prior art and provide a launch system and a launch method, aiming to solve the problems in the prior art.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] In a first aspect, the present invention provides a launch system, including a launch tube, a launcher, a projectile, and a protection device. The launcher, the protection device, and the projectile are sequentially arranged along the launch direction in the launch tube;

[0006] Wherein, the protection device includes a first outer shell. A positioning groove is provided on a side of the first outer shell away from the launcher, and the positioning groove is used for placing the projectile.

[0007] Further, the first outer shell includes a first housing and a second housing. The protection device further includes a parachute component and a locking component; the first housing and the second housing are detachably connected through the locking component; the parachute component is located in an installation cavity formed by enclosing between the first housing and the second housing, and the parachute component is connected to the first housing and / or the second housing.

[0008] Further, the protection device further includes a first elastic member. The first elastic member is compressed in the installation cavity and is used to provide an elastic force for separating the first housing and the second housing from each other.

[0009] Further, an elastic sheath is sleeved outside the first elastic member.

[0010] Further, first sleeve shells and second sleeve shells are respectively sleeved at two ends of the first elastic member. The first sleeve shell is fixedly connected to the first housing, the second sleeve shell abuts against the second housing, and the first spring is compressed in a protection cavity formed by enclosing between the first sleeve shell and the second sleeve shell.

[0011] Furthermore, the parachute assembly includes a parachute body and a plurality of parachute ropes, the parachute body is connected to the second shell, and the plurality of parachute ropes are connected to the parachute body and the first shell.

[0012] Furthermore, the second shell is arranged inside the first shell;

[0013] The first shell is provided with a first through hole, and the locking assembly includes a locking piece and a second elastic piece. The locking piece passes through the first through hole, and the part of the locking piece that penetrates into the inner side of the first shell abuts against the second shell, so that the second shell is limited in the direction of separating from the first shell; the second elastic piece is used to provide elastic force for the locking piece to pass through the first through hole to the outside of the first shell.

[0014] Furthermore, the portion of the locking member that passes through the outside of the first shell abuts against the inner wall of the launching tube, so that the movement of the locking member passing through the first through hole to the outside of the first shell is limited.

[0015] Furthermore, the launcher is a gunpowder-powered launcher.

[0016] In a second aspect, the present invention provides a transmitting system, comprising the following steps:

[0017] Activating the launcher to eject the protective device and the projectile along the launch tube;

[0018] When the protection device is separated from the launch tube, the locking member passes through the first through hole to the outside of the first shell under the elastic force of the second elastic member, and the locking member releases the restriction of the second shell;

[0019] When the locking member releases the restriction on the second shell, the first shell and the second shell are separated under the elastic force of the first elastic member, and the parachute assembly accommodated in the installation cavity is released and deployed, so that the speed of the protection device in the launching direction is reduced, and the projectile is separated from the protection device;

[0020] When the protection device is in free fall, the released and deployed parachute assembly provides upward resistance to the free fall of the protection device, so that the protection device descends slowly.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects: In the launching system of the present invention, a protection device is provided between the launcher and the projectile in the launching tube. The protection device is used to withstand the high-temperature and high-pressure gas and sparks generated when the launcher acts, and drives the projectile to shoot out of the launching tube in a preset posture through the positioning groove, effectively avoiding the situation that the launcher damages the projectile and ensuring the launching stability of the projectile shooting out of the launching tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments of the present invention.

[0023] Figure 1 is a three-dimensional structural schematic diagram of the protection device in the launching system of the embodiment of the present invention;

[0024] Figure 2 is a first cross-sectional view of the protection device in the launching system of the embodiment of the present invention;

[0025] Figure 3 is a structural schematic diagram of the locking assembly in the first state in the launching system of the embodiment of the present invention;

[0026] Figure 4 is a structural schematic diagram of the locking assembly in the second state in the launching system of the embodiment of the present invention;

[0027] Figure 5 is a cross-sectional structural schematic diagram of the locking assembly in the first state in the launching system of the embodiment of the present invention;

[0028] Figure 6 is a cross-sectional structural schematic diagram of the locking assembly in the second state in the launching system of the embodiment of the present invention;

[0029] Figure 7 is a cooperative structural schematic diagram of the first elastic member in the launching system of the embodiment of the present invention;

[0030] Figure 8 is a cross-sectional view of the cooperative structure of the first elastic member in the launching system of the embodiment of the present invention;

[0031] Figure 9 is a structural schematic diagram of the second housing in the launching system of the embodiment of the present invention;

[0032] Figure 10 is a structural schematic diagram of the protection device with the second outer shell installed in the launching system of the embodiment of the present invention;

[0033] Figure 11 is a first cross-sectional view of the protection device with the second outer shell installed in the launching system of the embodiment of the present invention;

[0034] Figure 12 It is the second cross-sectional view of the protection device installed on the second outer shell in the launch system of the embodiment of the present invention;

[0035] Figure 13 It is a schematic structural diagram of the separation of the first housing and the second housing of the launch system of the embodiment of the present invention;

[0036] Figure 14 It is a flowchart of the launch method of the embodiment of the present invention.

[0037] Explanation of reference numerals:

[0038] 10. Protection device; 11. First outer shell; 111. First housing; 1111. First through hole; 112. Second housing; 1121. Second through hole; 113. Positioning groove; 12. Parachute deployment assembly; 121. Parachute; 122. Parachute rope; 13. Locking assembly; 131. Locking member; 132. Second elastic member; 14. First elastic member; 141. Elastic sheath; 142. First sleeve; 143. Second sleeve; 15. Second outer shell. Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0043] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0045] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] Please refer to Figures 1 to 9 and Figure 13, an embodiment of the present invention provides a launching system, which includes a launching tube, a launcher, a projectile, and a protection device 10. The launcher, the protection device 10, and the projectile are sequentially arranged along the launching direction in the launching tube. Among them, the protection device 10 includes a first housing 11. A positioning groove 113 is provided on the side of the first housing 11 away from the launcher, and the positioning groove 113 is used to place the projectile. It should be noted that when the projectile is placed in the positioning groove 113, the positioning groove 113 only limits the projectile, ensuring that the projectile is located in the positioning groove 113 in a preset posture, but does not fix the projectile relative to the first housing 11. Thus, after the protection device 10 is shot out of the launching tube together with the projectile, the protection device 10 and the projectile placed in the positioning groove 113 can be separated smoothly.

[0047] It can be understood that the protection device 10 in this embodiment is designed to block the direct contact between the launcher and the projectile, protect the projectile from the influence of high-temperature and high-pressure gas and sparks, and at the same time ensure that the projectile can be stably shot out in a preset posture. Specifically, the protection device 10 is arranged between the launcher and the projectile, and its first housing 11 bears the impact of the high-temperature and high-pressure gas and sparks generated by the launcher; the positioning groove 113 ensures that the projectile maintains a preset posture during the launching process and is not fixed to the protection device 10, so as to be separated smoothly after launching. Thus, the protection device 10 in this embodiment not only avoids damage to the projectile but also ensures the stable posture of the projectile during the launching process.

[0048] In some embodiments, the first housing 11 includes a first shell 111 and a second shell 112. The protection device 10 further includes a parachute component 12 and a locking component 13; the first shell 111 and the second shell 112 are detachably connected through the locking component 13; the parachute component 12 is located in the installation cavity formed by enclosing between the first shell 111 and the second shell 112, and the parachute component 12 is connected to the first shell 111 and / or the second shell 112.

[0049] Optionally, the first shell 111 and the second shell 112 are butted in the launching direction. Optionally, the first shell 111 is located on the side of the second shell 112 facing the launching direction, and the positioning groove 113 is provided on the first shell 111. Preferably, the parachute component 12 is at least connected to the first shell 111. In this embodiment, the parachute component 12 is connected to the first shell 111 and the second shell 112, and the inflatable surface of the parachute component 12 faces the first shell 111.

[0050] It should be noted that by changing the state of the locking component 13, the connection state between the first housing 111 and the second housing 112 can be further changed. In the initial state, the first housing 111 and the second housing 112 are connected by the locking component 13. At this time, the locking component 13 is connected to both the first housing 111 and the second housing 112, thus forming a relatively fixed positional relationship between the first housing 111 and the second housing 112. In the unlocked state, the locking component 13 releases its connection with the first housing 111 and / or the second housing 112, thereby releasing the relative positional relationship between the first housing 111 and the second housing 112 defined by the locking component 13. Subsequently, the first housing 111 and the second housing 112 can be separated relatively, so that the parachute deployment assembly 12 folded in the installation cavity is released and deployed. The release and deployment of the parachute deployment assembly 12 can reduce the moving speed of the first housing 111 and the second housing 112, and prompt the projectile to disengage from the positioning groove 113; moreover, the release and deployment of the parachute deployment assembly 12 can also slow down the descending speed of the protection device 10 and ensure ground safety.

[0051] In some embodiments, the protection device 10 further includes a first elastic member 14. The first elastic member 14 is compressed in the installation cavity and is used to provide an elastic force for the separation of the first housing 111 and the second housing 112. It can be understood that when the first housing 111 and the second housing 112 are connected by the locking component 13, the first elastic member 14 is compressed in the installation cavity to store energy; when the locking component 13 releases its connection with the first housing 111 and / or the second housing 112, so that the relative positional relationship between the first housing 111 and the second housing 112 defined by the locking component 13 is released, the elastic potential energy stored in the first elastic member 14 will cause the first housing 111 and the second housing 112 to bounce off, prompting the parachute deployment assembly 12 to be quickly released and deployed, reducing the moving speed of the protection device 10, and at the same time prompting the projectile to disengage from the positioning groove 113.

[0052] In some embodiments, the parachute deployment assembly 12 includes a parachute body 121 and a plurality of parachute ropes 122. The parachute body 121 is connected to the second housing 112, and the plurality of parachute ropes 122 are connected to the parachute body 121 and the first housing 111. Thus, when the protection device 10 is launched and the locking mechanism is unlocked, the first housing 111 and the second housing 112 are separated. Since the first housing 111 is located on the side of the second housing 112 facing the launch direction, the inflatable surface of the parachute deployment assembly 12 faces the first housing 111. When the parachute ropes 122 are pulled by the first housing 111 and the parachute body 121 is pulled by the second housing 112, the airflow pouring in from the direction of the first housing 111 will cause the parachute body 121 to quickly unfold; after the parachute deployment assembly 12 is unfolded, it reduces the moving speed of the first housing 111 and the second housing 112, prompts the projectile to disengage from the positioning groove 113, and the parachute deployment assembly 12 continues to slow down the descending speed of the protection device 10 to ensure ground safety.

[0053] In some embodiments, an elastic sheath 141 is sleeved outside the first elastic member 14. Optionally, the first elastic member 14 is a spring. During the elastic deformation process of the first elastic member 14, it may be wound around the parachute body 121 or the parachute rope 122 of the parachute deployment assembly 12. The arrangement of the elastic sheath 141 can effectively prevent the entanglement between the parachute deployment assembly 12 and the first elastic member 14 during the installation process and the launch process, and avoid the situation where the release and deployment of the parachute deployment assembly 12 are blocked.

[0054] In some embodiments, a first housing 142 and a second housing 143 are respectively sleeved at two ends of the first elastic member 14. The first housing 142 is fixedly connected to the first housing body 111, and the second housing 143 abuts against the second housing body 112. The first spring is compressed in the protection cavity formed by enclosing the first housing 142 and the second housing 143. It can be understood that the first elastic member 14 may be interfered by external factors during the compression and release processes, resulting in unstable performance. In order to improve the reliability and stability of the device, the first housing 142 and the second housing 143 are provided in this application to form a protection cavity, aiming to further protect the first elastic member 14 and the elastic sheath 141.

[0055] In some embodiments, both the first elastic member 14 and the elastic sheath 141 are located in the protection cavity formed by enclosing the first housing 142 and the second housing 143. In some embodiments, the first elastic member 14, the first housing 142, and the second housing 143 are all sleeved inside the elastic sheath 141.

[0056] In some embodiments, the second housing body 112 is arranged inside the first housing body 111; the first housing body 111 is provided with a first through hole 1111. The locking assembly 13 includes a locking member 131 and a second elastic member 132. The locking member 131 passes through the first through hole 1111, and the part of the locking member 131 extending into the inside of the first housing body 111 abuts against the second housing body 112, so that the second housing body 112 is limited in the direction of separating from the first housing body 111; the second elastic member 132 is used to provide an elastic force for the locking member 131 to penetrate out of the first through hole 1111 to the outside of the first housing body 111.

[0057] Optionally, the part of the locking member 131 extending into the inside of the first housing body 111 is located in the path of the second housing body 112 separating from the first housing body 111, so that the second housing body 112 is limited in the direction of separating from the first housing body 111.

[0058] Optionally, the second housing body 112 is provided with a second through hole 1121. The locking member 131 passes through the first through hole 1111 and the second through hole 1121, so that the second housing body 112 is relatively fixed to the first housing body 111.

[0059] Optionally, the second elastic member 132 is disposed in the first through hole 1111. The locking member 131 is provided with an abutting portion for pressing the second elastic member 132. Thus, when the locking member 131 moves in the first through hole 1111, the abutting portion can press the second elastic member 132 or release the second elastic member 132. In some embodiments, the portion of the locking member 131 extending out of the outer side of the first housing 111 abuts against the inner wall of the launch tube, so that the movement of the locking member 131 extending out of the first through hole 1111 to the outer side of the first housing 111 is limited.

[0060] In some embodiments, the portion of the locking member 131 extending out of the outer side of the first housing 111 abuts against the inner wall of the launch tube, so that the movement of the locking member 131 extending out of the first through hole 1111 to the outer side of the first housing 111 is limited. It can be understood that the portion of the locking member 131 extending out of the outer side of the first housing 111 abuts against the inner wall of the launch tube, restricting the movement of the locking member 131 and ensuring the locked state. During the launch process, the locking member 131 remains in contact with the inner wall of the launch tube, ensuring the stability of the protection device 10 in the launch tube. When the protection device 10 is launched, the contact between the locking member 131 and the inner wall of the launch tube is released, and the locking member 131 disengages from the abutting position with the second housing 112, releasing the limit on the second housing 112, so that the first housing 111 and the second housing 112 can be separated.

[0061] In a feasible implementation, the operation process of the protection device 10 can be divided into the following three stages. The first stage is the loading stage. In this stage, the second housing 112 is disposed inside the first housing 111. The locking member 131 passes through the first through hole 1111 of the first housing 111 and extends into the inner side of the first housing 111, abutting against the second housing 112, so that the second housing 112 is limited in the direction of separating from the first housing 111. The second elastic member 132 is disposed in the first through hole 1111. The abutting portion on the locking member 131 presses the second elastic member 132, so that the locking member 131 has a force to extend out of the first through hole 1111 to the outer side of the first housing 111. However, the portion of the locking member 131 extending out of the first through hole 1111 to the outer side of the first housing 111 is pressed by the launch tube, so that the locking member 131 cannot move outwards of the first through hole 1111. The second stage is the launch stage. In this stage, the locking member 131 remains in contact with the second housing 112, ensuring the relative fixation of the first housing 111 and the second housing 112 and guaranteeing the stability and accuracy of the launch. The third stage is the separation and deployment stage. In this stage, when the protection device 10 is launched, the locking member 131 moves outwards of the first through hole 1111 under the elastic force of the second elastic member 132, so that the second housing 112 is no longer limited. The first elastic member 14 releases elastic potential energy, pushing the first housing 111 and the second housing 112 to separate; the parachute assembly 12 is deployed under the action of the airflow, reducing the descending speed of the protection device 10 and prompting the projectile to disengage from the positioning groove 113.

[0062] Please refer to Figures 10 to 13 , in some embodiments, before the protection device 10 is loaded into the launch tube, it is necessary to maintain the locking state of the locking assembly 13 on the first housing 111 and the second housing 112. The protection device 10 in this embodiment further includes a second outer shell 15, which is detachably installed outside the first outer shell 11, and the inner side of the second outer shell 15 abuts against the part of the locking member 131 that penetrates outside the first housing 111, so that the movement of the locking member 131 passing through the first through hole 1111 to the outside of the first housing 111 is limited, and the connection relationship between the first housing 111 and the second housing 112 is locked by the locking assembly 13. When it is necessary to load the protection device 10 in this embodiment into the launch tube, only need to detach and separate the second outer shell 15 from the first outer shell 11, and press the locking member 131 into the launch tube by external force. By introducing the second outer shell 15 in this embodiment, the protection device 10 can maintain the locking state before being loaded into the launch tube, ensuring the stability and reliability of the connection between the first housing 111 and the second housing 112, while simplifying the loading operation and improving the performance and safety of the overall system. It should be noted that the second outer shell 15 described in this embodiment can be used when the protection device 10 is transported outside the launch tube and needs to be removed when the protection device 10 is loaded into the launch tube. Optionally, the second outer shell 15 is connected to the first outer shell 11 by bolts.

[0063] In some embodiments, the launcher is a gunpowder-powered launcher. It should be noted that a gunpowder-powered launcher is a device that uses the high-temperature and high-pressure gas generated by gunpowder combustion as a power source to push the projectile to move.

[0064] Please refer to Figure 14 , the present invention provides a launching method, which is characterized in that it is applied to the launching system as described above, and includes the following steps:

[0065] S100. Start the launcher to shoot the protection device and the projectile along the launch tube;

[0066] S200. When the protection device detaches from the launch tube, the locking member penetrates through the first through hole to the outside of the first housing under the elastic force of the second elastic member, and the limit of the locking member on the second housing is released;

[0067] S300. When the limit of the locking member on the second housing is released, the first housing and the second housing are separated under the elastic force of the first elastic member, and the parachute deployment assembly accommodated in the installation cavity is released and deployed, so that the speed of the protection device in the launch direction is reduced, and the projectile is separated from the protection device;

[0068] S400: When the protection device is in free fall, the released and deployed parachute assembly provides an upward resistance to the free fall of the protection device, so that the protection device descends slowly.

[0069] The launch method of the present invention can effectively ensure that the projectile is isolated by the protective device during the launch process, avoiding damage to it by high-temperature and high-pressure gas and sparks, thereby improving the performance and reliability of the projectile. After the launch, the locking member is quickly unlocked under the elastic force of the second elastic member, and the first shell and the second shell are separated and the parachute assembly is released, ensuring that the projectile can smoothly detach from the protective device. At the same time, after the parachute assembly is deployed, the descent speed of the protective device is reduced to ensure ground safety. The entire method not only optimizes the stability and efficiency of the launch process, but also improves the safety of the system through the slow descent function of the parachute assembly. It is an innovative launch method that combines protection, stability and safety.

[0070] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be regarded as equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A transmitting system, characterized in that: It comprises a launching tube, a launcher, a projectile and a protective device, wherein the launcher, the protective device and the projectile are arranged in sequence in the launching tube along the launching direction; Wherein, the protection device comprises a first shell, and a positioning groove is provided on a side of the first shell away from the launcher, and the positioning groove is used to place the projectile.

2. The transmitting system according to claim 1, characterized in that: The first shell includes a first shell and a second shell, and the protection device also includes a parachute assembly and a locking assembly; the first shell and the second shell are detachably connected through the locking assembly; the parachute assembly is located in an installation cavity enclosed by the first shell and the second shell, and the parachute assembly is connected to the first shell and / or the second shell.

3. The transmitting system according to claim 2, characterized in that: The protection device further includes a first elastic member, which is compressed in the installation cavity and is used to provide an elastic force for separating the first shell and the second shell from each other.

4. The transmitting system according to claim 3, characterized in that: The first elastic member is covered with an elastic sheath.

5. The transmitting system according to claim 3, characterized in that: The first elastic member has a first shell and a second shell respectively sleeved on both ends, the first shell is fixedly connected to the first shell, the second shell abuts against the second shell, and the first spring is compressed in a protective cavity formed by the first shell and the second shell.

6. The transmitting system according to claim 2, characterized in that: The parachute assembly includes a parachute body and a plurality of parachute ropes, wherein the parachute body is connected to the second shell, and the plurality of parachute ropes are connected to the parachute body and the first shell.

7. The transmitting system according to claim 3, characterized in that: The second shell is arranged inside the first shell; The first shell is provided with a first through hole, and the locking assembly includes a locking piece and a second elastic piece. The locking piece passes through the first through hole, and the part of the locking piece that penetrates into the inner side of the first shell abuts against the second shell, so that the second shell is limited in the direction of separating from the first shell; the second elastic piece is used to provide elastic force for the locking piece to pass through the first through hole to the outside of the first shell.

8. The transmitting system according to claim 7, characterized in that: The portion of the locking piece that passes through the outside of the first shell abuts against the inner wall of the launching tube, so that the movement of the locking piece that passes through the first through hole to the outside of the first shell is limited.

9. The transmitting system according to claim 1, characterized in that: The launcher is a gunpowder powered launcher.

10. A transmitting method, characterized in that: The transmitting system as claimed in claim 8 comprises the following steps: Activating the launcher to eject the protective device and the projectile along the launch tube; When the protection device is separated from the launch tube, the locking member passes through the first through hole to the outside of the first shell under the elastic force of the second elastic member, and the locking member releases the restriction of the second shell; When the locking member releases the restriction on the second shell, the first shell and the second shell are separated under the elastic force of the first elastic member, and the parachute assembly accommodated in the installation cavity is released and deployed, so that the speed of the protection device in the launching direction is reduced, and the projectile is separated from the protection device; When the protection device is in free fall, the released and deployed parachute assembly provides upward resistance to the free fall of the protection device, so that the protection device descends slowly.

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