An unmanned payload launching device

Abstract

The application provides an unmanned load launching device, which comprises a base, a launching cavity arranged in the base, an accelerating part arranged in the launching cavity and moving along the launching cavity, an elastic deformation part arranged between the base and the accelerating part, and a locking assembly arranged in the launching cavity and locking or releasing the accelerating part, wherein the elastic deformation part can be elastically deformed by heating and generate potential energy for moving the accelerating part; the locking assembly releases the accelerating part when the potential energy of the elastic deformation part reaches the maximum; the elastic deformation part is deformed or reset by heating and cooling through the thermal shape memory performance and super-elastic performance of the shape memory alloy, the potential energy accumulated when the elastic deformation part is deformed provides launching power, and the deformation capacity of the shape memory alloy does not weaken greatly with time, so that the launching power is continuous and stable.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more particularly to an unmanned payload launch device. Background Technology

[0002] The main functions of drones are observation, photography, surveillance, and carrying various sensors and equipment. Launching drones from underwater vehicles allows for observation, photography, and surveillance of targets without exposing the drone itself, providing operators with more information and intelligence support, and helping to better accomplish surveillance missions.

[0003] Current underwater drone launch mechanisms mainly consist of launch pipes, launchers, and control systems. The launcher, composed of a compressed air system and related pipeline components, requires a large amount of space. Furthermore, its initial launch velocity is limited by the amount of compressed air stored and the maximum flow rate of the pipeline system, making it difficult to meet the launch requirements of high-load, high-speed underwater unmanned equipment.

[0004] Chinese patent CN115183987 discloses an underwater catapult experimental device suitable for biomimetic flying fish dynamics research. It utilizes the potential energy generated by spring compression to provide a power source for the launch of the drone, thus avoiding the limitations of compressed air power source solutions and effectively ensuring that the drone can have a high initial launch velocity.

[0005] However, the above scheme also has obvious drawbacks. Because the spring will be repeatedly compressed during the process of accumulating potential energy to provide launch power, after long-term use, the spring will gradually weaken its elastic compression deformation ability until it is completely lost. During this process, the potential energy generated by the spring after compression will also be gradually weakened, making it difficult to guarantee that it can continuously provide a high initial launch velocity for the launch of unmanned equipment. Summary of the Invention

[0006] In view of this, the present invention proposes an unmanned payload launch device to solve the problem that in the current scheme of using the elastic potential energy of a spring to provide launch power, the elastic capacity of the spring will gradually weaken and eventually be lost over time, resulting in a gradual decrease in launch speed and unstable launch capability.

[0007] The technical solution of the present invention is implemented as follows: The present invention provides an unmanned payload launch device, including a base with a launch cavity disposed therein; an acceleration unit disposed within the launch cavity and moving along the launch cavity; an elastic deformation member disposed between the base and the acceleration unit; and a locking assembly disposed within the launch cavity and locking or releasing the acceleration unit; wherein, the elastic deformation member is capable of elastic deformation upon heating and generating potential energy to propel the acceleration unit; the locking assembly releases the acceleration unit when the potential energy accumulated by the elastic deformation member reaches its maximum.

[0008] Based on the above technical solutions, preferably, it also includes a temperature regulating component, which is disposed in the base and connected to the elastic deformation component; wherein, the temperature regulating component can heat the elastic deformation component from the initial temperature to the preset temperature, and the elastic deformation component accumulates the maximum potential energy when it is heated to the preset temperature.

[0009] More preferably, the material cross-section of the elastic deformable element includes a carbon nanotube heating layer, a shape memory alloy layer, and a cooling pipe layer; the shape memory alloy layer is disposed between the carbon nanotube heating layer and the cooling pipe layer, and the temperature regulating component is connected to both the carbon nanotube heating layer and the cooling pipe layer. The temperature regulating component heats the carbon nanotube heating layer and heats the shape memory alloy layer. The temperature regulating component cools the shape memory alloy layer to its initial temperature and restores the elastic deformable element to its original deformation state by supplying a cooling medium to the cooling pipe layer.

[0010] More preferably, the temperature regulation component includes a power source disposed within the base and electrically connected to the carbon nanotube heating layer; a water source disposed on the base and providing a cooling medium; and a delivery pump disposed within the base and connected to the water source and the cooling pipeline layer. The power source supplies electricity to the carbon nanotube heating layer and heats it. The delivery pump delivers the cooling medium through the cooling pipeline layer and returns it to the water source.

[0011] More preferably, the unmanned payload launcher is used for underwater vehicles or underwater vehicles, with the water source being ambient water.

[0012] Even more preferably, the preset temperature is not less than 50 degrees Celsius, and the initial temperature is not greater than 10 degrees Celsius.

[0013] Based on the above technical solutions, preferably, the locking component includes a retaining member; wherein, at least one sliding groove is provided in the base around the axial direction of the emission cavity, and the sliding groove is connected to the emission cavity; the retaining member is disposed in the sliding groove and connected to the base shaft, one end of the retaining member can rotate around the radial parallel direction of the emission cavity and enter the emission cavity, and the end of the retaining member overlaps and presses against the edge of the acceleration part and locks the acceleration part.

[0014] More preferably, the locking assembly further includes a slide rod disposed within the slide groove and moving axially along the slide groove; a locking part; and a spring sleeved on the slide rod. The base also has a cavity located at the end of the slide groove furthest from the supporting member and spaced apart from the slide groove. The supporting member is axially connected to the inner wall of the slide groove at its center. One end of the slide rod is hinged to the end of the supporting member furthest from the accelerating part, and the other end of the slide rod extends axially along the slide groove and is inserted into the cavity. The locking part is used to lock the position of the end of the slide rod inserted into the cavity or to release the end of the slide rod. The two ends of the spring are respectively fixed to the outer peripheral wall of the end of the slide rod furthest from the slide groove and the inner wall of the slide groove. The spring elastically extends under force and rebounds to its original position when the force is lost.

[0015] More preferably, the locking part includes a rack disposed on the outer peripheral wall of one end of the slide bar inserted into the cavity; and a sector gear disposed inside the cavity; wherein the central shaft of the sector gear is connected to the inner wall of the cavity, and the teeth on the outer edge of the sector gear can rotate in a direction parallel to the radial direction of the firing cavity, and the sector gear cooperates with the rack to lock the slide bar.

[0016] In a further preferred embodiment, before the elastic deformation member accumulates its maximum potential energy, the locking part locks the slide rod, causing the slide rod to press against the abutment and the end of the abutment to overlap and abut against the edge of the acceleration part, and the spring elastically extends; when the elastic deformation member accumulates its maximum potential energy, the locking part releases the slide rod, the spring rebounds and resets, and drives the slide rod to move toward the cavity, the slide rod pulls the abutment to rotate and causes the end of the abutment to release the acceleration part.

[0017] The unmanned payload launching device of the present invention has the following advantages over the prior art:

[0018] (1) This invention utilizes the thermal shape memory properties and superelastic properties of shape memory alloys to deform or reset the elastic deformation component by heating and cooling it. The potential energy accumulated during deformation provides the launch power. The deformation capability of the shape memory alloy will not be greatly weakened over time, thus providing continuous and stable launch power.

[0019] (2) When the launching device of the present invention is applied to a water vehicle or underwater vehicle, it can use the water in the current environment as a cooling medium, which greatly reduces the difficulty of cooling the shape memory alloy of the elastic deformation part.

[0020] (3) The present invention locks or releases the acceleration part used for launch by locking mechanism. The locking function is achieved by the cooperation of sector gear and rack. When the temperature of the elastic deformation part gradually rises, the acceleration part is pressed down to restrict its movement, so that the elastic deformation part can fully accumulate potential energy. The acceleration part can be quickly released during launch, avoiding the problem that the locking component may hinder the movement of the acceleration part and consume some potential energy, resulting in the launch speed not meeting the requirements. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional view of the initial state of the launching device of the present invention;

[0023] Figure 2 This is a cross-sectional view of the launching device of the present invention in its launching state;

[0024] Figure 3 This is a cross-sectional view of the elastic deformation component of the present invention;

[0025] Figure 4 For the present invention Figure 1 Enlarged view of point A in the middle.

[0026] In the diagram: 1. Base; 101. Launch cavity; 102. Slide groove; 103. Cavity; 2. Acceleration unit; 3. Elastic deformation component; 31. Carbon nanotube electrothermal layer; 32. Shape memory alloy layer; 33. Cooling pipe layer; 4. Locking assembly; 41. Supporting component; 42. Slide rod; 43. Locking part; 431. Rack; 432. Sector gear; 44. Spring; 5. Temperature regulation assembly; 51. Power supply; 52. Water source; 53. Delivery pump. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figure 1 As shown, combined with Figure 2 and Figure 3 The present invention provides an unmanned payload launch device, comprising a base 1, an acceleration unit 2, an elastic deformation member 3, a locking component 4, and a temperature regulation component 5.

[0030] The base 1 contains a launch chamber 101. The base 1 can be considered a general term for the UAV carrier. The launch chamber 101 is the launch conduit for launching the unmanned equipment. Its inner wall is generally covered with a protective plate made of composite materials or steel, which has high strength and corrosion resistance. The top outlet of the launch chamber 101 is generally equipped with an actively opening and closing cover.

[0031] The acceleration unit 2 is disposed within the launch cavity 101 and moves along the launch cavity 101 to launch the drone. The acceleration unit 2 is a launch platform for mounting the drone. To avoid the acceleration unit 2 from deviating in its direction of movement due to uneven force on it, a guide rail slider mechanism can be provided on the inner wall of the launch cavity 101. The acceleration unit 2 is disposed on the slider and moves under the guidance of the guide rail.

[0032] An elastic deformation element 3 is disposed between the base 1 and the acceleration unit 2. The elastic deformation element 3 can undergo elastic deformation upon heating and generate potential energy to propel the acceleration unit 2. The principle of this invention is also to use elastic potential energy to provide a power source for the launch of the UAV, but the difference is that this invention does not use elastic elements such as springs, but uses an elastic deformation element 3 made of elastic deformation shape memory alloy to provide elastic potential energy. Its advantage is that the elastic deformation element 3 will deform after its body temperature rises to a certain temperature, and will return to its original shape when its temperature drops to another temperature. Therefore, the elastic deformation element 3 will not be subjected to continuous external pressure during the accumulation of potential energy, and the deformation of the elastic deformation element 3 is due to the influence of temperature rather than external pressure. Therefore, the problem of the elastic deformation element 3 gradually weakening its elasticity due to long-term use and pressure is avoided.

[0033] Specifically, the material cross-section of the elastic deformable component 3 includes a carbon nanotube heating layer 31, a shape memory alloy layer 32, and a cooling pipe layer 33; the shape memory alloy layer 32 is disposed between the carbon nanotube heating layer 31 and the cooling pipe layer 33. The shape memory alloy layer 32 serves to separate the carbon nanotube heating layer 31 and the cooling pipe layer 33, preventing adverse effects between them.

[0034] Modern research has found that some metallic materials, after undergoing significant plastic deformation, can recover their original shape upon heating. The same material, within a certain temperature range, can experience strains as high as 10% and still return to its original shape upon unloading. These unusual effects are respectively called thermo-shape memory and superelasticity (elastic shape memory). Both effects depend on the occurrence of a specific type of phase transformation, known as the thermoelastic martensitic transformation. The shape memory alloy layer 32 in this case is made of such a metal, typically a nickel-titanium based alloy, such as titanium-nickel alloy, titanium-nickel-niobium alloy, or titanium-nickel-palladium alloy; however, copper-based alloys or iron-based alloys can also be used.

[0035] When preparing the elastic deformable part 3, firstly, a shape memory alloy layer 32 located in the middle layer is prepared. The shape memory alloy layer 32 is made by three-dimensional printing technology. Then, carbon nanofiber material is printed on one side of the shape memory alloy layer 32 by three-dimensional printing technology to form a carbon nanofiber electrothermal layer 31. Then, cooling pipes are arranged on the other side of the shape memory alloy layer 32 to form a cooling pipe layer 33.

[0036] The locking assembly 4 is disposed within the launch cavity 101 and locks or releases the acceleration section 2. The locking assembly 4 releases the acceleration section 2 when the potential energy accumulated in the elastic deformation member 3 reaches its maximum. After the elastic deformation member 3 deforms and resets, the locking assembly 4 locks the elastic deformation member 3 back in place.

[0037] A temperature regulating component 5 is disposed within the base 1 and connected to the elastic deformable element 3. The temperature regulating component 5 is also connected to the carbon nanotube heating layer 31 and the cooling pipe layer 33. The temperature regulating component 5 heats the carbon nanotube heating layer 31 and the shape memory alloy layer 32. The temperature regulating component 5 cools the shape memory alloy layer 32 to its initial temperature and restores the elastic deformable element 3 to its original deformation state by supplying a cooling medium to the cooling pipe layer 33. The temperature regulating component 5 can heat the elastic deformable element 3 from its initial temperature to a preset temperature. When the elastic deformable element 3 reaches the preset temperature, its potential energy accumulation reaches its maximum. The preset temperature is not less than 50 degrees Celsius, and the initial temperature is not greater than 10 degrees Celsius.

[0038] Since the deformation of the elastic deformable element 3 needs to be controlled by the temperature change of the elastic deformable element 3, this device also includes a control system. The control system controls the launch of the unmanned equipment and consists of an electronic control module, sensors, and communication equipment. When a launch mission is required, the control system controls the temperature of the carbon nanofiber filaments in the carbon nanotube electrothermal layer 31 to rise. When the temperature of the elastic deformable element 3 rises to 50 degrees Celsius, the elastic deformable element 3 will extend back to its original shape and generate superelastic force. When the locking component 4 is released, the elastic deformable element 3 accelerates the acceleration part 2, thereby realizing the ejection of the UAV. After the UAV is launched, the control system controls the cooling medium to flow through the cooling pipes in the cooling pipe layer 33 to cool the elastic deformable element 3. When the temperature of the elastic deformable element 3 drops to 10 degrees Celsius, the UAV is loaded into the launch cavity 101, pushing the acceleration part 2 back into position and compressing the elastic deformable element 3. The locking component 4 then fixes the acceleration part 2 in the launch cavity 101, completing the loading and launch preparation of the UAV. Therefore, this launching device has advantages such as high launch speed, high launch accuracy, wide applicability, and simple operation. Furthermore, this device can also be used with various types of launching devices, including vehicles, aircraft, underwater vehicles, and surface ships.

[0039] This embodiment was compared with two commercially available launch devices. The launch device that uses spring elasticity as the launch power source can be the TL3 heavy-duty UAV catapult from Beijing Tianyu Chuangtong Technology Co., Ltd., and the launch device that uses aerodynamics as the launch power source can be the MC01515L catapult from Robonic Company of Finland. The test data in Table 1 below were obtained.

[0040] Table 1

[0041]

[0042]

[0043] Example 2

[0044] In Embodiment 1, in order to heat and cool the shape memory alloy layer 32, the temperature regulation component 5 includes a power supply 51, a water source 52, and a delivery pump 53.

[0045] The power supply 51 is located inside the base 1 and is electrically connected to the carbon nanotube electrothermal layer 31.

[0046] A water source 52 is provided on the base 1 and provides a cooling medium. A power source 51 supplies electricity to the carbon nanotube heating layer 31 and heats the carbon nanotube heating layer 31.

[0047] The delivery pump 53 is installed inside the base 1 and connected to the water source 52 and the cooling pipe layer 33. The delivery pump 53 delivers the cooling medium through the cooling pipe layer 33 and returns to the water source 52.

[0048] Example 3

[0049] Based on Embodiment 2, the unmanned payload launch device is used for underwater vehicles or submersible vehicles. The water source 52 is the ambient water body, which is beneficial for the device to use the current ambient water body as a cooling medium when it is applied to underwater vehicles or submersible vehicles, greatly reducing the difficulty of cooling the shape memory alloy layer 32 of the elastic deformation component 3.

[0050] Example 4

[0051] In Embodiment 1, there are two ways for the accelerator 2 to launch. One way is that the accelerator 2 pushes open the restriction of the locking mechanism under the action of elastic potential energy. This way does not require the locking mechanism to have the ability to actively lock, so the structure is simpler. However, since the accelerator 2 will consume some elastic potential energy when it pushes open the restriction of the locking mechanism, it may cause the launch speed to decrease. The other way is that the locking component 4 can actively release the accelerator 2 to avoid consuming elastic potential energy. However, the problem with this way is that if the degree of restriction on the accelerator 2 is too strong or the restriction time is too long, it may cause pressure damage to the elastic deformation component 3 with deformation tendency. Moreover, the process of the locking component 4 actively releasing the accelerator 2 may also hinder the movement of the accelerator 2.

[0052] To solve the above problems, such as Figure 1 As shown, combined with Figure 4 The locking component 4 includes a support member 41, a slide bar 42, a locking part 43, and a spring 44.

[0053] The base 1 has at least one groove 102 axially formed around the emission cavity 101, and the groove 102 is connected to the emission cavity 101. The base 1 also has a cavity 103, which is located at the end of the groove 102 away from the abutment 41 and is spaced apart from the groove 102.

[0054] The abutment 41 is disposed in the slide groove 102. The middle part of the abutment 41 is axially connected to the inner wall of the slide groove 102. One end of the abutment 41 can rotate in a radial parallel direction around the emission cavity 101 and enter the emission cavity 101. The end of the abutment 41 overlaps and presses against the edge of the acceleration part 2 and locks the acceleration part 2.

[0055] The slide rod 42 is disposed in the slide groove 102 and moves axially along the slide groove 102. One end of the slide rod 42 is hinged to the end of the abutment 41 away from the acceleration part 2, and the other end of the slide rod 42 extends axially along the slide groove 102 and is inserted into the cavity 103.

[0056] The locking part 43 is used to lock the position of the end of the slide bar 42 inserted into the cavity 103 within the cavity 103 or to release the end of the slide bar 42.

[0057] Spring 44 is sleeved on slide rod 42. The two ends of spring 44 are respectively fixed to the outer peripheral wall of the end of slide rod 42 away from slide groove 102 and the inner wall of slide groove 102. When spring 44 is subjected to force, it elastically extends and when it loses force, it springs back to its original position.

[0058] Using the above technical solution, before the elastic deformable element 3 accumulates its maximum potential energy, the locking part 43 locks the sliding rod 42, causing the sliding rod 42 to press against the abutment 41 and the end of the abutment 41 to overlap and abut against the edge of the acceleration part 2, while the spring 44 elastically extends. When the elastic deformable element 3 accumulates its maximum potential energy, the locking part 43 releases the sliding rod 42, the spring 44 rebounds and resets, and drives the sliding rod 42 to move toward the cavity 103. The sliding rod 42 pulls the abutment 41 to rotate and causes the end of the abutment 41 to release the acceleration part 2. Since the locking assembly 4 releases the acceleration part 2 by the spring 44 rebounding and retracting the sliding rod 42 to pull away the abutment 41, the acceleration part 2 can be released quickly, avoiding the consumption of the potential energy accumulated by the elastic deformable element 3, and enabling the acceleration part 2 to launch the UAV with a high initial velocity.

[0059] Example 5

[0060] Based on Embodiment 4, in order to enable the locking component 4 to effectively lock the acceleration part 2 and ensure that the locking component 4 can quickly release the acceleration part 2, the locking part 43 includes a rack 431 and a sector gear 432.

[0061] Among them, the rack 431 is set on the outer peripheral wall of one end of the slide bar 42 inserted into the cavity 103.

[0062] A sector gear 432 is disposed inside the cavity 103. The central shaft of the sector gear 432 is connected to the inner wall of the cavity 103. The teeth on the outer edge of the sector gear 432 can rotate in a radial parallel direction around the firing cavity 101. The sector gear 432 cooperates with the rack 431 and locks the slide rod 42.

[0063] When it is necessary to lock the acceleration part 2, as long as the sector gear 432 rotates and engages with the rack 431, the slide bar 42 can be gradually pushed forward to hold the abutment 41 and achieve locking. When it is necessary to release the acceleration part 2, since the teeth of the sector gear 432 are less than a full turn, once the sector gear 432 disengages from the rack 431, the spring 44 can lose its force and return to its original position.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An unmanned payload launching device, characterized in that, include: Base (1), which contains a firing cavity (101); An acceleration unit (2) is disposed within the emission cavity (101) and moves along the emission cavity (101); An elastic deformation element (3) is disposed between the base (1) and the acceleration part (2); Locking component (4) is disposed in the firing cavity (101) and locks or releases the acceleration unit (2); The elastic deformation member (3) is capable of undergoing elastic deformation when heated and generating potential energy to propel the acceleration part (2) to move. The locking component (4) releases the acceleration part (2) when the potential energy accumulated by the elastic deformation member (3) reaches its maximum. The locking component (4) includes, Supporting document (41); Slide bar (42); Locking part (43); A spring (44) is fitted onto the slide rod (42); The base (1) has at least one groove (102) axially formed around the emission cavity (101), and the groove (102) is connected to the emission cavity (101). The abutment (41) is disposed in the slide groove (102) and is axially connected to the base (1). One end of the abutment (41) can rotate in a radial parallel direction around the emission cavity (101) and enter the emission cavity (101). The end of the abutment (41) overlaps and presses against the edge of the acceleration part (2) and locks the acceleration part (2). The base (1) is also provided with a cavity (103), which is located at the end of the slide groove (102) away from the support member (41) and is spaced apart from the slide groove (102); The middle part of the abutment (41) is axially connected to the inner wall of the slide groove (102); The slide bar (42) is disposed in the slide groove (102) and moves axially along the slide groove (102); One end of the slide rod (42) is hinged to the end of the abutment (41) away from the acceleration part (2), and the other end of the slide rod (42) extends axially along the slide groove (102) and is inserted into the cavity (103); The locking part (43) is used to lock the position of the end of the slide rod (42) inserted into the cavity (103) or to release the end of the slide rod (42); The two ends of the spring (44) are respectively fixed to the outer peripheral wall of the end of the slide rod (42) away from the slide groove (102) and the inner wall of the slide groove (102). The spring (44) is elastically stretched when subjected to force and rebounds to its original position when it loses force.

2. The unmanned payload launching device according to claim 1, characterized in that, Also includes: Temperature regulating component (5) is disposed in the base (1) and connected to elastic deformation component (3); The temperature regulating component (5) can heat the elastic deformation member (3) from the initial temperature to the preset temperature, and the elastic deformation member (3) accumulates the maximum potential energy when it is heated to the preset temperature.

3. The unmanned payload launching device according to claim 2, characterized in that: The material cross-section of the elastic deformation element (3) includes a carbon nanotube electrothermal layer (31), a shape memory alloy layer (32), and a cooling pipe layer (33). The shape memory alloy layer (32) is disposed between the carbon nanotube electrothermal layer (31) and the cooling pipe layer (33). The temperature regulating component (5) is connected to both the carbon nanotube heating layer (31) and the cooling pipe layer (33). The temperature regulating component (5) heats the carbon nanotube heating layer (31) and heats the shape memory alloy layer (32). The temperature regulating component (5) cools the shape memory alloy layer (32) to its initial temperature and causes the elastic deformation element (3) to deform and reset by supplying a cooling medium to the cooling pipe layer (33).

4. The unmanned payload launching device according to claim 3, characterized in that: The temperature regulation component (5) includes, A power supply (51) is disposed within the base (1) and electrically connected to the carbon nanotube electrothermal layer (31); A water source (52) is provided on the base (1) and a cooling medium is supplied. A delivery pump (53) is installed in the base (1) and connected to a water source (52) and a cooling pipe layer (33); The power source (51) supplies electricity to the carbon nanotube electrothermal layer (31) and heats the carbon nanotube electrothermal layer (31); The delivery pump (53) delivers the cooling medium through the cooling pipeline layer (33) and then returns to the water source (52).

5. The unmanned payload launching device according to claim 4, characterized in that: The unmanned payload launch device is used for underwater vehicles or underwater vehicles, and the water source (52) is an environmental water body.

6. The unmanned payload launching device according to claim 2, characterized in that: The preset temperature is not less than 50 degrees Celsius, and the initial temperature is not greater than 10 degrees Celsius.

7. The unmanned payload launching device according to claim 1, characterized in that: The locking part (43) includes, A rack (431) is disposed on the outer peripheral wall of one end of the slide bar (42) inserted into the cavity (103); A sector gear (432) is disposed within the cavity (103); The central shaft of the sector gear (432) is connected to the inner wall of the cavity (103). The teeth on the outer edge of the sector gear (432) can rotate in a parallel direction around the radial direction of the firing cavity (101). The sector gear (432) cooperates with the rack (431) and locks the slide rod (42).

8. The unmanned payload launching device according to claim 1, characterized in that: Before the elastic deformation member (3) accumulates potential energy to the maximum, the locking part (43) locks the slide rod (42), so that the slide rod (42) abuts against the support member (41) and the end of the support member (41) overlaps and abuts against the edge of the acceleration part (2), and the spring (44) stretches elastically. When the elastic deformation member (3) accumulates potential energy to the maximum, the locking part (43) releases the slide rod (42), the spring (44) rebounds and resets, and drives the slide rod (42) to move toward the cavity (103). The slide rod (42) pulls the abutment (41) to rotate and causes the end of the abutment (41) to release the acceleration part (2).

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