A solid rocket engine booster for a drone

Abstract

The utility model relates to the technical field of solid rocket engine, concretely provides a solid rocket engine booster for unmanned plane, include: booster body, buffer mechanism and push away mechanism, wherein, the mounting piece is located in booster body, buffer mechanism is connected with mounting piece, is used for buffering booster body when the booster body falls, push away mechanism is connected with mounting piece, is used for when the booster body separates from unmanned plane, pushes away unmanned plane with booster body. The utility model solves the problem that the solid rocket engine booster in the prior art is easy to crash the tail wing of unmanned plane and cannot be recycled under the application scene of unmanned plane taking off.

Description

Technical Field

[0001] This utility model relates to the field of solid rocket engine technology, specifically providing a solid rocket engine booster for unmanned aerial vehicles (UAVs). Background Technology

[0002] The space provides a large thrust to the drone, allowing it to take off directly from the launch pad using the thrust and aerodynamic shape.

[0003] When the booster fuel burns out, the drone separates from the booster. At this point, the drone accelerates upwards at a high speed, while the booster falls downwards at a lower speed. Due to this speed difference, the booster is likely to collide with the drone's tail fin, causing damage and potentially leading to the drone veering off course or crashing. The booster, upon impact with the ground, becomes deformed and cannot be reused. Utility Model Content

[0004] This invention provides a solid rocket motor booster for unmanned aerial vehicles (UAVs), which solves the problem that existing solid rocket motor boosters are prone to damaging the UAV's tail fin and cannot be recovered during UAV takeoff.

[0005] This utility model provides a solid rocket motor booster for unmanned aerial vehicles, comprising: booster body; Mounting components are provided on the booster body; A buffer mechanism, connected to the mounting component, is used to buffer the booster body when it falls. A push-off mechanism, connected to the mounting component, is used to push the booster body away from the drone when the booster body detaches from the drone.

[0006] According to the engine booster provided by this utility model, the push-off mechanism includes: Mounting box; The jet canisters are detachably installed inside the mounting box, with their jet nozzles located outside the mounting box and facing upwards; there are multiple jet canisters, which are evenly distributed on both sides of the booster body.

[0007] According to the engine booster provided by this utility model, the push-off mechanism includes: Hanging basket; Nitrogen tanks are detachably installed inside the payload basket, with their nozzles located outside the payload basket and facing upwards; there are multiple nitrogen tanks, which are evenly distributed on both sides of the booster body.

[0008] According to the engine booster provided by this utility model, the buffer mechanism includes a safety airbag, which is detachably installed on the mounting component.

[0009] According to the engine booster provided by this utility model, the safety airbag has multiple components, and is evenly distributed on the mounting component along the circumference of the booster body.

[0010] According to the engine booster provided by this utility model, the mounting component includes a clamp with multiple mounting holes arranged circumferentially for mounting the buffer mechanism and the push-off mechanism.

[0011] According to the engine booster provided by this utility model, the clamp is made of an elastic non-metallic material.

[0012] According to the engine booster provided by this utility model, the clamp is made of silicone material.

[0013] The beneficial effects of this utility model are: The novel solid rocket motor booster provided by this utility model incorporates a buffer mechanism and a push-off mechanism on a traditional booster. This effectively enables the booster to quickly detach from the UAV after its fuel is depleted, avoiding damage to the UAV's tail fins caused by speed differences. Simultaneously, after the booster lands, the buffer mechanism provides shock absorption, which can minimize booster deformation and facilitate future recycling.

[0014] By using mounting components, the buffer mechanism and the push-off mechanism can be installed without damaging the booster's main structure.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a first-view perspective three-dimensional structural diagram of the booster provided by this utility model; Figure 2 This is a schematic diagram of the booster's three-dimensional structure from a second perspective, provided by this utility model. Figure 3This is a schematic diagram of the booster's three-dimensional structure from a third-view perspective, provided by this utility model.

[0018] 1. Booster body; 2. Mounting components; 201. Mounting hole; 3. Buffer mechanism; 4. Push-off mechanism; 401. Jet canister; 402. Mounting box. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of the embodiments of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0022] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0024] This utility model embodiment provides a solid rocket motor booster for unmanned aerial vehicles, such as... Figures 1 to 3 As shown, it includes: Booster body 1; Mounting component 2 is located on booster body 1; The buffer mechanism 3 is connected to the mounting part 2 and is used to buffer the booster body 1 when it falls. The push-off mechanism 4, connected to the mounting component 2, is used to push the booster body 1 away from the drone when the booster body 1 detaches from the drone.

[0025] In some embodiments, the booster body 1 can be a dual-base propellant booster or a composite propellant booster, whichever is suitable for UAV takeoff; generally, it should be cylindrical.

[0026] Mounting component 2 can have various structures, such as a mounting base bolted to the booster body 1, a clamp fitted onto the booster body 1, or other mounting structures, as long as they can accommodate the push-off mechanism 4 and the buffer mechanism 3.

[0027] The buffer mechanism 3 can be an airbag, a foldable outrigger landing gear (which disperses the impact through structural deformation and outrigger deployment), etc.

[0028] The propulsion mechanism 4 can be a reverse jet system, that is, it can spray towards the direction of the drone or vertically upward to quickly propel the booster away.

[0029] The novel solid rocket motor booster provided by this utility model incorporates a buffer mechanism 3 and a push-off mechanism 4 on a traditional booster. This effectively enables the booster to quickly detach from the UAV after its fuel is depleted, avoiding damage to the UAV's tail fins caused by speed differences. Simultaneously, after the booster lands, the buffer mechanism 3 provides cushioning and shock absorption, which can prevent the booster from deforming to the greatest extent possible, facilitating its future recycling.

[0030] By installing the mounting component 2, the buffer mechanism 3 and the push-off mechanism 4 can be installed without damaging the structure of the booster body 1.

[0031] According to the engine booster provided by this utility model, such as Figures 1 to 3 As shown, the pushing mechanism 4 includes: Mounting box 402; The jet canister 401 is detachably installed inside the mounting box 402, with its jet nozzle located outside the mounting box 402 and facing upwards; there are multiple jet canisters 401, which are evenly distributed on both sides of the booster body 1.

[0032] In this embodiment, the thrust-off mechanism 4 is preferably a combination of the mounting box 402 and the jet canister 401. This combination structure facilitates the replacement of the jet canister 401 without separate inflation; only the jet canister 401 needs to be replaced, making it highly practical and cost-effective. The gas in the jet canister 401 can be argon, helium, carbon dioxide, a mixture of compressed air and propellant, etc., as long as it can provide instantaneous thrust.

[0033] According to the engine booster provided by this utility model, the push-off mechanism 4 includes: Hanging basket; Nitrogen tanks are detachably installed inside the payload basket, with their nozzles located outside the payload basket and facing upwards; there are multiple nitrogen tanks, which are evenly distributed on both sides of the booster body 1.

[0034] This embodiment provides another combination structure for the push-off mechanism 4, improving the aforementioned mounting box 402 into a mounting basket (not shown in the figure), thus reducing manufacturing costs. The mounting basket is mostly made of silicone, which is highly malleable and can accommodate nitrogen tanks of different sizes. It also provides support and constraint for the nitrogen tanks, offering certain advantages over the mounting box 402. Preferably, the jet canister 401 is a nitrogen tank, further reducing acquisition costs.

[0035] The nitrogen tank has a stopper at its opening, which is connected to the underside of the drone via a pull cable. When the booster body 1 descends, the pull cable can pull the stopper, thereby releasing nitrogen. Alternatively, an electronic valve can be used, which opens when the booster body 1 descends, also releasing nitrogen, but this method is more expensive than the stopper method.

[0036] According to the engine booster provided by this utility model, such as Figures 1 to 3 As shown, the buffer mechanism 3 includes an airbag, which is detachably installed on the mounting component 2.

[0037] In this embodiment, the buffer mechanism 3 is preferably an airbag, and there are two airbags arranged vertically. The upper airbag protects the upper half of the booster body 1, and the lower airbag protects the lower half of the booster body 1. In this way, the booster body 1 can be protected from impact damage from 360° and can be reused.

[0038] This airbag features a distance-measuring sensor. This type of sensor is used to accurately determine the distance between the booster and the ground at close range, avoiding errors in barometric altimeter calculations caused by terrain undulations. Common types include infrared distance sensors and ultrasonic distance sensors. Infrared distance sensors calculate distance by emitting infrared light and receiving the reflected light, offering a fast response time. Ultrasonic sensors, on the other hand, rely on the propagation characteristics of ultrasound to measure distance, exhibiting strong anti-interference capabilities. Both are suitable for secondary confirmation at close range (within tens of meters) to ensure the airbag deploys at the critical distance before landing.

[0039] According to the engine booster provided by this utility model, such as Figures 1 to 3 As shown, the mounting component 2 includes a clamp with multiple mounting holes 201 arranged circumferentially for mounting the buffer mechanism 3 and the push-off mechanism 4.

[0040] In this embodiment, the mounting component 2 is preferably a clamp. The clamp can be tensioned at the middle section of the booster body 1 without damaging the external structure of the booster body 1. Multiple mounting holes 201 are formed circumferentially on the clamp ring. These mounting holes 201 can be connected to the aforementioned mounting box 402 or mounting basket via snap fasteners, allowing for replacement of the mounting box 402 or mounting basket. Similarly, the airbag is also detachably connected to the clamp via snap fasteners for easy fixing and replacement.

[0041] Furthermore, the clamps are made of flexible non-metallic materials, such as: 1. Rubber (the mainstream elastic material): Nitrile butadiene rubber (NBR): With moderate elasticity, strong oil resistance and abrasion resistance, it is suitable for oil pipelines and mechanical connection scenarios, and is a commonly used rubber material for clamps.

[0042] Silicone rubber (SR): Excellent high temperature resistance (-50℃~200℃) and low temperature resistance, good elastic recovery, suitable for pipeline fixing in high and low temperature environments.

[0043] Fluororubber (FKM): Resistant to chemical corrosion and high temperature (up to 250℃), with strong anti-aging ability, suitable for the manufacture of clamps for chemical media and high-temperature equipment.

[0044] 2. Engineering plastics (combining elasticity and structural strength): Nylon (PA, such as PA6, PA12): It has a certain degree of elasticity and toughness, high mechanical strength, and light weight. It is suitable for lightweight, medium-pressure clamps and can be made into snap-on elastic clamps.

[0045] Polyurethane (PU): Adjustable elastic modulus, wear-resistant, impact-resistant, adaptable to frequent disassembly of clamps, and has good cushioning effect.

[0046] Polyoxymethylene (POM): It has good elastic recovery, high dimensional stability, and strong fatigue resistance, making it suitable for clamp structures that require repeated deformation.

[0047] 3. Elastic composite materials (high-performance customized scenarios): Fiber-reinforced elastomers: These are made with rubber or PU as a base and reinforced with materials such as glass fiber and carbon fiber, balancing elasticity and high strength to meet the needs of high-pressure and heavy-duty clamps.

[0048] Foamed elastic materials: such as foamed silicone and foamed polyurethane, are soft in texture and have good elastic cushioning effect, making them suitable for clamps that require anti-scratch protection for the fastened parts.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A solid rocket motor booster for an unmanned aerial vehicle, characterized in that, include: booster body; Mounting components are provided on the booster body; A buffer mechanism, connected to the mounting component, is used to buffer the booster body when it falls. A push-off mechanism, connected to the mounting component, is used to push the booster body away from the drone when the booster body detaches from the drone.

2. The engine booster according to claim 1, characterized in that, The pushing mechanism includes: Mounting box; The jet canisters are detachably installed inside the mounting box, with their jet nozzles located outside the mounting box and facing upwards; there are multiple jet canisters, which are evenly distributed on both sides of the booster body.

3. The engine booster according to claim 1, characterized in that, The pushing mechanism includes: Hanging basket; Nitrogen tanks are detachably installed inside the payload basket, with their nozzles located outside the payload basket and facing upwards; there are multiple nitrogen tanks, which are evenly distributed on both sides of the booster body.

4. The engine booster according to claim 1, characterized in that, The buffer mechanism includes an airbag, which is detachably mounted on the mounting component.

5. The engine booster according to claim 4, characterized in that, The airbags are multiple in number and are evenly distributed on the mounting component along the circumference of the booster body.

6. The engine booster according to claim 1, characterized in that, The mounting component includes a clamp with multiple circumferentially arranged mounting holes for mounting the buffer mechanism and the push-away mechanism.

7. The engine booster according to claim 6, characterized in that, The clamp is made of a flexible non-metallic material.

8. The engine booster according to claim 7, characterized in that, The clamp is made of silicone.

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