Rescue device

Abstract

The utility model discloses a rescue device, and relates to the technical field of rescue equipment. The rescue device is used for water rescue and comprises an annular main body, a rotor wing mechanism and a control mechanism, a buoyancy cavity is formed in the annular main body and can provide buoyancy, and the rotor wing mechanism comprises a first rotor wing unit, a second rotor wing unit and a third rotor wing unit; the first rotor wing unit, the second rotor wing unit and the third rotor wing unit are distributed at intervals along the periphery of the annular main body and are connected with the annular main body, and the control mechanism is electrically connected with the first rotor wing unit, the second rotor wing unit and the third rotor wing unit and is arranged in the annular main body. Compared with a four-axis unmanned aerial vehicle, the rotor mechanism has the advantages that the number of the rotors is remarkably reduced, and the rotors are prevented from occupying the use space of the annular main body. Meanwhile, the size and the maximum length of the rescue device are relatively reduced, so that the rescue device is easy to wear, the flight resistance is reduced, and the flight stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of rescue equipment technology, and in particular to a rescue device. Background Technology

[0002] In recent years, with the development of drone technology, flying rescue equipment has gradually become a new means of water rescue. For example, flying lifebuoys are currently being used, where quadcopter drones or ordinary consumer drones carry the lifebuoys, and the rescue device is delivered to the vicinity of the person who has fallen into the water through remote control.

[0003] However, existing quadcopter drones have a relatively large overall structure, with the rotors taking up a correspondingly large portion of the space, which reduces the usable space for the rescued personnel. Therefore, existing flying lifebuoys are inconvenient for rescuers to wear, increasing the difficulty of the rescue and reducing the success rate. Utility Model Content

[0004] In view of the shortcomings of the aforementioned related technologies, this application provides a rescue device to solve the above-mentioned technical problems.

[0005] This application provides a rescue device for water rescue. The rescue device includes a ring-shaped body, a rotor mechanism, and a control mechanism. The ring-shaped body has a buoyancy cavity that can provide buoyancy. The rotor mechanism includes a first rotor unit, a second rotor unit, and a third rotor unit. The first rotor unit, the second rotor unit, and the third rotor unit are distributed at intervals along the outer periphery of the ring-shaped body and are connected to the ring-shaped body. The control mechanism is electrically connected to the first rotor unit, the second rotor unit, and the third rotor unit and is disposed within the ring-shaped body.

[0006] In one embodiment of this application, the first rotor unit, the second rotor unit, and the third rotor unit each include a fixed frame, a drive assembly, a first rotor, and a second rotor. One end of the fixed frame is connected to the annular body, and the other end is used to install the drive assembly. The drive assembly is connected to the first rotor and the second rotor in a transmission manner.

[0007] In one embodiment of this application, the drive assembly includes a first drive member and a second drive member. The mounting bracket has a first surface and a second surface facing away from each other. The first drive member is mounted on the first surface, the second drive member is mounted on the second surface, the first rotor is connected to the first drive member, and the second rotor is connected to the second drive member.

[0008] In one embodiment of this application, the fixing frame is configured as a hollow structure.

[0009] In one embodiment of this application, the annular body includes a frame and a shell. The shell has a sealed cavity, the frame is disposed in the sealed cavity, and the sealed cavity is divided into a buoyancy cavity and an electromechanical cavity. The control mechanism is disposed in the electromechanical cavity, and the frame connects the first rotor unit, the second rotor unit, the third rotor unit, and the control mechanism.

[0010] In one embodiment of this application, the housing includes a first housing and a second housing, which are detachably connected to form a sealed cavity, and a frame is fixed between the first housing and the second housing.

[0011] In one embodiment of this application, the buoyancy cavity and / or electromechanical cavity are configured as an annular space.

[0012] In one embodiment of this application, the connection between the skeleton and the first housing is sealed to form a sealed cavity.

[0013] In one embodiment of this application, the skeleton includes a first skeleton and a second skeleton connected together. The first skeleton and the second skeleton are spaced apart and distributed along the axis of the annular body. The first skeleton is located on the side of the second skeleton closer to the first shell. Both the first skeleton and the second skeleton are connected to the first rotor unit, the second rotor unit and the third rotor unit.

[0014] In one embodiment of this application, the skeleton has multiple through holes, which are distributed circumferentially along the annular body.

[0015] In one embodiment of this application, the skeleton is provided with reinforcing ribs, which include a plurality of first reinforcing ribs and a plurality of second reinforcing ribs. The first reinforcing ribs extend radially along the annular body, and the second reinforcing ribs extend circumferentially along the annular body. The second reinforcing ribs are connected to the first reinforcing ribs.

[0016] In one embodiment of this application, the rescue device further includes a fixing part, which is disposed in one of the annular body, the first rotor unit, the second rotor unit, and the third rotor unit, and is used to connect to the rescue rope.

[0017] In one embodiment of this application, the rescue device is further provided with multiple protective covers, which are disposed outside the first rotor unit, the second rotor unit and the third rotor unit and connected to the annular body.

[0018] In one embodiment of this application, the first rotor unit, the second rotor unit, and the third rotor unit are distributed at equal intervals.

[0019] In one embodiment of this application, the buoyancy cavity is filled with foam.

[0020] In one embodiment of this application, the rescue device is further equipped with a camera module, which is located inside the annular body and electrically connected to the control mechanism.

[0021] The technical solution adopted in this utility model achieves the following beneficial effects: The rotor mechanism includes a first rotor unit, a second rotor unit, and a third rotor unit. Under the control of the control mechanism, the first rotor unit, the second rotor unit, and the third rotor unit can fly to a designated location, where they can be grabbed or worn by the rescued person. The rescue device has a ring-shaped main body. After the rescued person wears or grasps the rescue device, the buoyancy cavity of the ring-shaped main body can provide buoyancy, enabling the rescued person to float on the water surface to complete the rescue. In addition, compared with quadcopter drones, the rescue device of this embodiment adopts a three-rotor mechanism, which reduces the number of rotors, increases the spacing between adjacent rotor units, and avoids the rotors encroaching on the usable space of the ring-shaped main body, thereby increasing the usable space for the rescued person. At the same time, the three-rotor mechanism can also reduce the volume and maximum length of the rescue device, making the rescue device easier to wear, reducing flight drag, and improving flight stability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a rescue device shown in an exemplary embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of a rescue device from another perspective, illustrating an exemplary embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of the annular body shown in an exemplary embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the structure of the annular body and rotor mechanism shown in an exemplary embodiment of this application;

[0027] Figure 5 This is a cross-sectional view of a rescue device, as shown in an exemplary embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the structure of the first rotor unit shown in an exemplary embodiment of this application;

[0029] Figure 7 This is a schematic diagram of the structure of the fixing frame shown in an exemplary embodiment of this application.

[0030] In the diagram: 1. Rescue device; 100. Ring-shaped main body; 110. Frame; 111. First frame; 112. Second frame; 113. Buoyancy cavity; 114. Sealed cavity; 115. Through hole; 116. First reinforcing rib; 117. Second reinforcing rib; 118. Electromechanical cavity; 120. Shell; 121. First shell; 122. Second shell; 200. Rotor mechanism; 210. First rotor unit; 220. Second rotor unit; 230. Third rotor unit; 240. Fixing frame; 241. First surface; 242. Second surface; 250. Drive assembly; 251. First drive component; 252. Second drive component; 260. First rotor; 270. Second rotor; 300. Control mechanism; 400. Fixing part; 500. Protective cover. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0033] Most existing drones feature a quadcopter configuration, with four rotors positioned at the four corners of the drone, and adjacent rotors spaced close together. To avoid excessive size, the rotors inevitably encroach on the space available to rescue personnel, making it difficult for those being rescued to don protective gear. Conversely, if the rotors didn't occupy space, the drone's size would increase dramatically, also increasing drag.

[0034] This application provides a rescue device 1, please refer to... Figure 1 Rescue device 1 is used for water rescue. Nowadays, many people participate in water activities, and accidents frequently occur. The popularity of water sports increases the risk of accidents. Rescue device 1 provides buoyancy, allowing the person to float on the water's surface, preventing them from sinking and ensuring their stability in the water, thus preventing them from easily capsizing.

[0035] Please see Figure 2 The rescue device 1 may include a ring-shaped body 100, a rotor mechanism 200 and a control mechanism 300. The control mechanism is located inside the ring-shaped body 100. The rotor mechanism 200 is connected to the ring-shaped body 100 and the control mechanism 300 is electrically connected.

[0036] In this embodiment, please refer to the following: Figure 2 as well as Figure 3 The annular body 100 can be a circular structure that can be worn by the person being rescued. The annular body 100 has a buoyancy cavity 113 that provides buoyancy. In one embodiment, the buoyancy cavity 113 is filled with foam or the like. The foam has a porous and loose structure, which makes its density much lower than that of liquids such as water, thus generating greater buoyancy. This ensures the stability of the person in the water, preventing them from easily capsizing and facilitating subsequent rescue.

[0037] In some other cases, the buoyancy cavity 113 is empty, and air fills it. In water, the air can provide buoyancy to the buoyancy cavity 113, which will not be elaborated further here.

[0038] However, water rescues are complex, making it difficult for rescuers to access the rescue site. Please refer to the previous text. Figure 2 The rotor mechanism 200 of this application includes a first rotor unit 210, a second rotor unit 220, and a third rotor unit 230, which are spaced apart along the outer periphery of the annular body 100. The first rotor unit 210, second rotor unit 220, and third rotor unit 230 are electrically driven and generate lift. This lift can lift the annular body 100 upwards, allowing it to be transported by air to the rescue location, providing buoyancy to the rescued personnel and improving the safety of rescuers.

[0039] Existing drones carry and deploy lifebuoys for people to retrieve. However, their stability is poor, and they are prone to detaching during flight. Furthermore, drones struggle to descend to low altitudes, resulting in the lifebuoys being deployed at higher points, which is unsuitable given the complexity of water rescue situations and the low accuracy of the lifebuoy's landing point. Please continue reading. Figure 2In this embodiment, the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230 are all connected to the annular body 100. The rotor mechanism 200 can be integrated with the annular body 100 to improve the stability of the rescue device 1 and prevent the annular body 100 and the rotor mechanism 200 from detaching from each other. Furthermore, the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230 are integrated onto the annular body 100. During the rescue process, the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230 do not separate from the annular body 100, and can continuously drive the annular body 100 to a lower position. In addition, during the descent, the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230 can continuously correct their landing point so that the rescued person can promptly obtain and wear the rescue device 1.

[0040] Please see Figure 3 In this embodiment, the rotor mechanism 200 includes a first rotor unit 210, a second rotor unit 220, and a third rotor unit 230; in other words, the rotor mechanism 200 is a three-axis distribution. Compared to a quadcopter, the three-rotor mechanism 200 in this embodiment reduces the number of rotors and increases the spacing between adjacent rotor units, preventing the rotors from encroaching on the usable space of the annular main body 100, thereby increasing the usable space for the rescued personnel. Simultaneously, the three-rotor mechanism 200 can also reduce the volume and maximum length of the rescue device 1. For example, the longest length of a quadcopter is the diagonal of the drone, i.e., the sum of the diameter of the main body and the diameters of the two rotors. In contrast, the longest length of the rescue device 1 in this embodiment is the maximum distance between two adjacent rotor units. Figure 3 As shown in d1, this distance is less than the longest length of existing quadcopter drones. This setup makes the rescue device 1 easier to wear, reduces its size, and also decreases drag during flight, improving flight stability.

[0041] In this embodiment, please refer to Figure 4 The annular body 100 may include a frame 110 and a shell 120. The frame 110 can be a metal frame, such as aluminum alloy or stainless steel, and possesses characteristics such as high strength and corrosion resistance. The frame 110 ensures the stability of the device in complex environments and effectively resists various external forces. The shell 120 has a sealed cavity 114. For example, the shell 120 can have an annular structure, and the sealed cavity 114 can be an annular space, which allows the buoyancy of the shell 120 to be evenly transmitted to all parts of the annular body 100.

[0042] The frame 110 is disposed within the sealed cavity 114, which is divided into a buoyancy cavity 113 and an electromechanical cavity 118. The control mechanism 300 is disposed within the electromechanical cavity 118. The sealed cavity 114 forms a sealed space, and the control structure is located within the sealed electromechanical cavity 118. The electromechanical cavity 118 effectively isolates the control mechanism 300 from moisture and impurities in the external environment, providing a dry and safe environment and greatly reducing the risk of failure due to moisture or contamination, thereby significantly improving the reliability and service life of the control mechanism 300. Furthermore, the buoyancy cavity 113 and the electromechanical cavity 118 are separated to avoid mutual interference. For example, the foam in the buoyancy cavity 113 can be confined within the buoyancy cavity 113 by the frame 110, preventing foam movement and changes in the buoyancy distribution of the annular body 100, effectively protecting key components and ensuring the stable operation of the rescue device 1 in complex environments.

[0043] Please continue reading. Figure 4 The frame 110 connects the first rotor unit 210, the second rotor unit 220, the third rotor unit 230, and the control mechanism 300. The frame 110 can resist external impacts and can fix the various components of the rescue device 1, preventing the components from detaching and causing damage to the rescue device 1, thereby improving the stability of the rescue device 1.

[0044] Preferably, the buoyancy cavity 113 and / or the electromechanical cavity 118 are configured as annular spaces. For example, the buoyancy cavity 113 can be annular. The buoyancy provided by the buoyancy cavity 113 can be stably transmitted to all parts of the annular body 100, preventing buoyancy shift that could cause the annular body 100 to tip over. The electromechanical cavity 118 is configured as an annular space to fit the structure of the annular body 100, allowing for a larger space to accommodate more functional control mechanisms 300.

[0045] In one implementation, please refer again. Figure 2 as well as Figure 5 The housing 120 includes a first housing 121 and a second housing 122. The first housing 121 and the second housing 122 are detachably connected to form a sealed cavity 114. The detachable connection method can be a threaded connection, a snap-fit ​​connection, etc., and this embodiment is not limited to this. The detachable configuration of the first housing 121 and the second housing 122 not only provides comprehensive protection for the internal control mechanism 300, but also greatly simplifies the maintenance and repair process, allowing operators to replace damaged parts without damaging the overall structure, and extending its service life.

[0046] like Figure 5As shown, the frame 110 is fixed between the first housing 121 and the second housing 122. Exemplarily, the first housing 121 and the second housing 122 are interconnected. The first housing 121 and the second housing 122 abut against two opposite surfaces of the frame 110, so that the frame 110 is clamped between the first housing 121 and the second housing 122, allowing the frame 110 to be fixed to both the first housing 121 and the second housing 122. This arrangement improves the stability and safety of the rescue device 1.

[0047] In other cases, the frame 110 can be interconnected with the first housing 121 and / or the second housing 122. The connection methods include, but are not limited to, threaded connection, welding, riveting, etc., which can improve the connection stability between the frame 110 and the housing 120.

[0048] In this embodiment, please refer to Figure 4 The frame 110 may include a first frame 111 and a second frame 112, which are interconnected. The first frame 111 and the second frame 112 are spaced apart and distributed along the axis of the annular body 100, with the first frame 111 located on the side of the second frame 112 closest to the first housing 121. Both the first frame 111 and the second frame 112 are connected to the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230. This arrangement not only optimizes the space utilization of the annular body 100 but also significantly improves the stability of the entire structure. Through the spaced distribution of the first frame 111 and the second frame 112, the rescue device 1 can better resist torque from all directions during flight. Especially under complex flight conditions such as high-speed flight or strong winds, this design ensures that the rescue device 1 maintains a stable flight attitude, effectively preventing structural distortion or loss of control due to excessive torque, thereby greatly enhancing the safety and reliability of the rescue device 1.

[0049] In one implementation, please refer to [link / reference needed]. Figure 4 The frame 110 may have multiple through holes 115, which are distributed circumferentially along the annular body 100. For example, both the first frame 111 and the second frame 112 are equipped with multiple through holes 115. The multiple through holes 115 reduce the weight of the frame 110, achieving lightweight design, which improves the annular body 100's levitation ability on the water surface. It also improves the endurance of the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230, thereby increasing the rescue range of the rescue device 1.

[0050] In another implementation, please refer to [link / reference needed]. Figure 4The frame 110 may be equipped with reinforcing ribs, which can be reinforcing structures protruding from the surface of the frame 110. These ribs improve the strength of the frame 110 and prevent significant deformation. The reinforcing ribs may include multiple first reinforcing ribs 116 and multiple second reinforcing ribs 117. The first reinforcing ribs 116 extend radially along the annular body 100, and the second reinforcing ribs 117 extend circumferentially along the annular body 100. The second reinforcing ribs 117 connect to the first reinforcing ribs 116. For example, the multiple second reinforcing ribs 117 are distributed radially, and the first reinforcing ribs 116 can connect between adjacent second reinforcing ribs 117. This arrangement allows the first reinforcing ribs 116 and second reinforcing ribs 117 to intersect, improving the torsional resistance of the frame 110, enabling it to overcome forces from all directions and increasing the strength of the frame 110.

[0051] In this embodiment, please refer to the following: Figure 2 as well as Figure 6 The first rotor unit 210, the second rotor unit 220, and the third rotor unit 230 each include a mounting frame 240, a drive assembly 250, a first rotor 260, and a second rotor 270. For ease of description, the following description uses the first rotor unit 210 having a mounting frame 240, a drive assembly 250, a first rotor 260, and a second rotor 270 as an example. The mounting frame 240 can be a metal mounting frame, such as aluminum alloy or stainless steel. The mounting frame 240 has characteristics such as high strength and corrosion resistance, ensuring the stability of the device in complex environments and effectively resisting various external forces. One end of the mounting frame 240 is connected to the annular body 100, and the other end is used to install the drive assembly 250. The installation method between the drive assembly 250 and the mounting frame 240 includes, but is not limited to, fastener connection and snap-fit, etc., and this embodiment does not impose any limitations. The mounting frame 240 enables a stable connection between the annular body 100 and the drive assembly 250, thereby improving the structural stability of the rescue device 1.

[0052] Please continue reading. Figure 6 The first rotor unit 210 is equipped with a first rotor 260 and a second rotor 270, and the drive assembly 250 drives the first rotor 260 and the second rotor 270. This configuration enhances the overall lift of the rescue device 1, enabling it to easily cope with various flight conditions. This configuration allows the rescue device 1 to have only three rotor units, yet still possess sufficient lift. In other words, it ensures the normal operation of the structure while reducing the number of components. Furthermore, the two rotors form a redundant configuration, ensuring that even if one rotor fails or encounters complex environmental challenges, the other rotor can continue to operate, guaranteeing the safety and reliability of the rescue device 1 under extreme conditions.

[0053] Better, such as Figure 7As shown, the mounting bracket 240 is configured with a hollow structure. Specifically, the mounting bracket 240 can be configured with multiple hollow holes, the shape of which can be triangular, rectangular, etc. The hollow holes can reduce the weight of the mounting bracket 240, making the rescue device 1 lighter and improving the endurance of the rescue device 1.

[0054] In one implementation, please refer to [link / reference needed]. Figure 6 as well as Figure 7 The drive assembly 250 may include a first drive member 251 and a second drive member 252, which may be a drive motor, etc. The mounting frame 240 has a first surface 241 and a second surface 242 facing away from each other. The first drive member 251 is mounted on the first surface 241, and the second drive member 252 is mounted on the second surface 242. This arrangement avoids mutual interference between the first drive member 251 and the second drive member 252, allowing them to rotate independently. The first rotor 260 is drivenly connected to the first drive member 251, and the second rotor 270 is drivenly connected to the second drive member 252. The first rotor 260 and the second rotor 270 can rotate in opposite directions. This arrangement not only improves the overall lift of the rescue device 1, enabling it to easily cope with various flight conditions, but also counteracts the reaction torque generated when a single rotor rotates, ensuring the balance and stability of the rescue device 1.

[0055] For a better option, please refer to the following: Figure 2 The rescue device 1 is also equipped with multiple protective covers 500, which can be two, three, or other quantities. These protective covers 500 are positioned over the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230, and are connected to the annular body 100. Furthermore, the protective covers 500 can have a porous structure, which prevents fingers from entering the rotors while ensuring the normal operation of the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230. The protective covers 500 enhance the safety of rescue personnel. Additionally, the protective covers 500 can have mounting holes for inserting a fixing frame 240, facilitating the installation and fixation between the rotor mechanism 200 and the annular body 100.

[0056] In this embodiment, please refer to Figure 3The first rotor unit 210, the second rotor unit 220, and the third rotor unit 230 are evenly spaced. For example, the distance between any two of the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230 is one-third of the arc of the annular body 100. This arrangement allows the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230 to be evenly stressed, avoiding stress concentration in the annular body 100 and improving the stability of the rescue device 1. Furthermore, the weight of the three rotor units 210, the second rotor unit 220, and the third rotor unit 230 can be evenly distributed on the annular body 100, and the buoyancy can also be more evenly distributed, allowing the rescue device 1 to float stably on the water surface, thus improving the stability of the rescue device 1.

[0057] In this embodiment, please refer to the previous section again. Figure 1 The control mechanism 300 includes, but is not limited to, a flight control system, a positioning system, and an image transmission system. For example, the flight control system uses various sensors (such as accelerometers, gyroscopes, and barometers) to sense the status of the rescue device 1, and then controls the motors, servos, and other actuators of the rescue device 1 according to a preset control algorithm and user commands (such as operation commands input via a remote controller) to achieve functions such as stable flight, automatic hovering, and route planning. The positioning system includes, but is not limited to, the Global Positioning System (GPS) and the BeiDou Navigation Satellite System, which can provide location information for the rescue device 1 to facilitate subsequent rescue efforts. The image transmission system can transmit rescue images to the control terminal in real time, allowing backend personnel to obtain real-time information about the situation on-site. The control mechanism 300 may also include other components, which will not be elaborated upon here.

[0058] In one embodiment, a control mechanism 300 is electrically connected to a first rotor unit 210, a second rotor unit 220, and a third rotor unit 230. The control mechanism 300 can switch the operating modes of the three rotor units 210, 220, and 230 based on operator commands and preset control algorithms. For example, if the rescue device 1 needs to fly forward, the control mechanism 300 can accelerate the third rotor unit 230 to tilt the rescue device 1 forward. The tilted rescue device 1 has a forward force, allowing it to orient itself towards flight. The control mechanism 300 improves the automation level of the rescue device 1, enabling it to enter confined and complex environments in place of rescue personnel, and allowing rescue personnel to conduct remote rescue operations.

[0059] Preferably, the control mechanism 300 is disposed within the annular body 100. The annular body 100 provides protection for the control structure, preventing external impacts or vibrations from affecting the normal operation of the control mechanism 300, thereby improving the reliability of the rescue device 1.

[0060] Understandably, the control mechanism 300 can be located on the inner side of the annular body 100, where it is less susceptible to external impacts, further improving the reliability of the rescue device 1. Furthermore, the control mechanism 300 can be equipped with devices such as sensors, buzzers, or horns. For example, when the person being rescued wears the annular body 100, the control mechanism 300 is equipped with an infrared sensor that can acquire the person's body surface temperature and transmit it to the rescuers for assistance.

[0061] In this embodiment, please continue to refer to Figure 2 The rescue device 1 also has a fixing part 400, which is disposed in one of the annular body 100, the first rotor unit 210, the second rotor unit 220 and the third rotor unit 230. The fixing part 400 is used to connect to the rescue rope.

[0062] In this embodiment, the rescue device 1 may also be equipped with a camera module, which includes, but is not limited to, a camera, a lighting lamp, or an infrared night vision device; this embodiment does not impose any limitations. The camera module is located within the annular main body 100 and is electrically connected to the control mechanism 300. The camera module can acquire environmental information and information about the person being rescued, allowing the operator to control the descent of the rescue device 1, and enabling the person being rescued to promptly access the rescue device 1.

[0063] The technical solution adopted in this utility model can achieve the following beneficial effects: The rotor mechanism 200 includes a first rotor unit 210, a second rotor unit 220, and a third rotor unit 230. Under the control of the control mechanism 300, the first rotor unit 210, the second rotor unit 220, and the third rotor unit 230 can fly to a designated location for being grabbed or worn by the rescued person. The rescue device 1 has a ring-shaped body 100. After the rescued person wears or grasps the rescue device 1, the buoyancy cavity 113 of the ring-shaped body 100 can provide buoyancy, enabling the rescued person to float on the water surface to complete the rescue. In addition, compared with a quadcopter drone, the rescue device 1 of this embodiment adopts a three-rotor mechanism 200, which reduces the number of rotors, increases the spacing between adjacent rotor units, and avoids the rotors encroaching on the usable space of the ring-shaped body 100, thereby increasing the usable space for the rescued person. At the same time, the three-rotor mechanism 200 can also reduce the volume and maximum length of the rescue device 1, making the rescue device 1 easier to wear, reducing flight drag, and improving flight stability.

[0064] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0065] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0066] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A rescue device for water rescue, characterized in that, The rescue device comprises: a ring-shaped main body, which has a buoyancy cavity inside, and the buoyancy cavity can provide buoyancy; a rotor mechanism, which comprises a first rotor unit, a second rotor unit and a third rotor unit, the first rotor unit, the second rotor unit and the third rotor unit are spaced apart along the outer periphery of the ring-shaped main body and connected with the ring-shaped main body; and a control mechanism, which is electrically connected with the first rotor unit, the second rotor unit and the third rotor unit and arranged inside the ring-shaped main body. The first rotor unit, the second rotor unit and the third rotor unit each comprise a fixing frame, a driving assembly, a first rotor and a second rotor, one end of the fixing frame is connected with the ring-shaped main body, the other end is used for mounting the driving assembly, and the driving assembly is drivingly connected with the first rotor and the second rotor.

2. Rescue device according to claim 1, characterized in that The driving assembly comprises a first driving member and a second driving member, the fixing frame has opposite first and second surfaces, the first driving member is mounted on the first surface, the second driving member is mounted on the second surface, the first rotor is connected with the first driving member, and the second rotor is connected with the second driving member. The fixing frame is configured in a hollow structure.

3. Rescue device according to claim 1, characterized in that The ring-shaped main body comprises a framework and a shell, the shell has a sealed cavity, the framework is arranged in the sealed cavity and divides the sealed cavity into the buoyancy cavity and an electromechanical cavity, the control mechanism is arranged in the electromechanical cavity, and the framework connects the first rotor unit, the second rotor unit, the third rotor unit and the control mechanism.

4. Rescue device according to claim 3, characterized in that The shell comprises a first shell and a second shell, the first shell and the second shell are detachably connected to form the sealed cavity, and the framework is fixed between the first shell and the second shell.

5. Rescue device according to claim 4, characterized in that The buoyancy cavity and / or the electromechanical cavity is configured as a ring-shaped space. The framework comprises a first framework and a second framework, the first framework and the second framework are spaced apart and distributed along the axis of the ring-shaped main body, the first framework is located on the side of the second framework close to the first shell, and the first framework and the second framework are connected with the first rotor unit, the second rotor unit and the third rotor unit.

6. Rescue device according to claim 4, characterized in that The framework is provided with a plurality of through holes, and the plurality of through holes are distributed along the circumference of the ring-shaped main body. The framework is provided with reinforcing ribs, the reinforcing ribs comprise a plurality of first reinforcing ribs and a plurality of second reinforcing ribs, the first reinforcing ribs extend along the radial direction of the ring-shaped main body, the second reinforcing ribs extend along the circumferential direction of the ring-shaped main body, and the second reinforcing ribs connect the first reinforcing ribs.

7. The rescue device of claim 1, wherein, The rescue device further comprises a fixing part, the fixing part is arranged in one of the ring-shaped main body, the first rotor unit, the second rotor unit and the third rotor unit, and the fixing part is used for being connected with a rescue rope.

8. Rescue arrangement according to any of claims 1-7, characterized in that The rescue device is further provided with a plurality of protective covers, which are arranged outside the first, second and third rotor units and connected with the annular main body. And / or, the first, second and third rotor units are equidistantly spaced.

9. Rescue arrangement according to any of claims 1-7, characterized in that The buoyancy cavity is filled with foam.

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