Lifesaving device throwing system

Abstract

The invention provides a lifesaving device throwing system, and relates to the technical field of emergency rescue equipment. The ejection mechanism comprises a rack, a first elastic piece, a spring plate, a first gear, a first rack and a first motor, the upper end of the first elastic piece is connected with the rack, the lower end of the first elastic piece is connected with the spring plate, the first rack is vertically arranged and connected with the spring plate, and the first gear is connected with the first motor and engaged with the first rack; the trigger mechanism comprises a trigger block, a second elastic piece, a pull rod and a second motor, the first rack is provided with a clamping groove, the trigger block is rotatably connected to the rack and connected with the rack through the second elastic piece, one end of the pull rod is rotatably connected with the trigger block, and the other end of the pull rod is connected with the second motor. And the second motor can drive the trigger block to rotate, so that the trigger block is separated from the clamping groove. The unmanned aerial vehicle has the beneficial effects that the accuracy and speed of releasing the life buoy by the unmanned aerial vehicle are improved, and the probability of rescue failure of drowners is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of emergency rescue equipment, and in particular to a lifesaving device throwing system. Background Art

[0002] In emergency rescue operations in oceans, rivers and other waters, lifebuoys carried by drones are often used to reach the destination. Drones will throw the lifebuoys near the drowning person to achieve the purpose of rescue. Drones generally throw the lifebuoys they carry directly. After the lifebuoys are dropped, the lifebuoys slowly descend until they fall to the water surface. During the falling process of the lifebuoys, factors such as wind force will affect the attitude stability of the lifebuoys. Coupled with the adverse effect of positioning accuracy, it may be difficult to accurately drop the lifebuoys. If the lifebuoys are not dropped in place, they cannot accurately reach the drowning person's location, delaying the rescue opportunity and causing the failure of the rescue operation. Summary of the invention

[0003] In view of this, in order to solve the above-mentioned problems existing in the UAV throwing life buoy, an embodiment of the present invention provides a life-saving device throwing system.

[0004] An embodiment of the present invention provides a lifesaving device throwing system, comprising:

[0005] A life buoy, the upper part of which is provided with a fixing bracket;

[0006] The ejection mechanism comprises a frame, a first elastic member, a spring plate, a first gear, a first rack and a first motor, wherein the first elastic member is connected to the frame at an upper end and connected to the spring plate at a lower end, the spring plate is located above the fixed bracket, the first rack is vertically arranged and connected to the spring plate, the first gear is connected to the first motor and meshes with the first rack;

[0007] And a trigger mechanism, which includes a trigger block, a second elastic member, a pull rod and a second motor, the first rack is provided with a slot, the trigger block can be rotatably connected to the frame and connected to the frame through the second elastic member, one end of the pull rod can be rotatably connected to the trigger block, and the other end is connected to the second motor, after the first elastic member is compressed to a predetermined length, the slot just clamps the slot, and the second motor can drive the trigger block to rotate, so that the trigger block is separated from the slot.

[0008] Furthermore, the slot is a V-shaped slot, and the upper end of the trigger block close to the first rack is provided with a V-shaped clamping joint, and the clamping joint can be clamped into the slot.

[0009] Furthermore, the trigger block is a triangle, one vertex of which forms the clamping joint, and the other vertex is connected to the frame through the second elastic member.

[0010] Furthermore, the slot is arranged on a side of the first rack close to the trigger block, a fixed shaft is arranged on a side of the frame close to the first rack, and the trigger block is rotatably sleeved on the fixed shaft and can be inserted into the slot.

[0011] Furthermore, the output end of the second motor is connected to a crank, and one end of the pull rod is rotatably connected to the crank.

[0012] Furthermore, it also includes a launching frame, which includes two side brackets, wherein the two side brackets are respectively located on both sides of the fixed bracket, and positioning columns are provided on both sides of the fixed bracket, and the positioning columns are spring plungers. Each side bracket is provided with a guide groove, and the two positioning columns are respectively inserted into the guide grooves.

[0013] Furthermore, the launch frame also includes a second gear, two second racks, two mechanical claws and a third motor. The upper end of each side bracket is connected to one of the second racks, and the lower end is connected to one of the mechanical claws. The two second racks are arranged opposite to each other up and down, and the second gear is meshed with the two second racks. The third motor is connected to the second gear to drive the two second racks to move in opposite directions, so that the two mechanical claws are relatively close or far away.

[0014] Furthermore, the mechanical claw includes an upper bracket, a lower bracket, a universal joint, a driving wheel and a fourth motor, the upper end of the upper bracket is fixedly connected to the lower end of the side bracket, and the lower end is rotatably connected to the upper end of the lower bracket, and a torsion spring is also provided between the lower end of the upper bracket and the upper end of the lower bracket, the driving wheel is rotatably connected to the lower bracket, the driving wheel is also connected to the universal joint, and the fourth motor is connected to the universal joint to drive the driving wheel to rotate, thereby driving the lifebuoy to rotate through the two driving wheels, so that the positioning column is stuck in the guide groove.

[0015] Furthermore, the lifebuoy includes a lifebuoy body, two permanent magnets and a rotating mechanism, the lifebuoy body is installed at the bottom of the fixed bracket, the two permanent magnets are installed on the fixed bracket and are arranged opposite to each other up and down, the rotating mechanism includes an outer shell, a rotating shaft and a rotor coil, the rotating shaft is rotatably installed on the fixed bracket, the outer shell is sleeved on the rotating shaft, the rotor coil is arranged in the outer shell and sleeved on the rotating shaft, the rotor coil is located between the two permanent magnets, and the outer shell is provided with multiple water inlet holes.

[0016] Furthermore, two ends of the two rotating shafts pass through two sides of the fixing bracket respectively, and brushes are provided at both ends of the rotating shafts, and the brushes are connected to the rotor coils.

[0017] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention are:

[0018] 1. A life-saving device throwing system of the present invention is installed on a drone, and a first motor drives a first gear to drive a first rack to move upward, and drives a spring plate to move upward to compress a first elastic member, and when the first rack moves to a predetermined position, a trigger block is clamped with a clamping slot on the first rack to complete energy storage; when it is necessary to throw a life buoy, a second motor drives a connecting rod to pull the trigger block to separate it from the clamping slot, and the first rack and the spring plate are released, and the restoring force of the first elastic member drives the spring plate to move downward, pushing the life buoy to eject the life buoy downward, and under the action of the ejection, the life buoy quickly falls toward the target position, so that the life buoy quickly and accurately reaches the vicinity of the drowning person, thereby improving the accuracy and speed of the drone in throwing the life buoy and reducing the probability of failure in rescuing the drowning person.

[0019] 2. A life-saving device throwing system of the present invention, before the drone drops the lifebuoy, the rotor coil is energized through the brush to form a periodic electromagnetic field surrounding the rotor coil, and the rotation is accelerated under the joint action of the external permanent magnetic field formed by the two permanent magnets to complete energy storage. After the lifebuoy is dropped, when it falls in the air, the high-speed rotating rotor has a large angular momentum. According to the gyro effect, it can maintain its posture in the air and fall in a vertical posture. After the lifebuoy falls into the water, the end close to the rotating mechanism is heavier and will enter the water first. The water quickly fills the outer shell through the water inlet hole to achieve rapid deceleration. The decelerating rotating mechanism cannot keep the lifebuoy vertical. Finally, the lifebuoy floats horizontally on the water. In this way, the drone only needs to drop the lifebuoy just above the drowning person to make the lifebuoy fall accurately near the drowning person, thereby improving the accuracy of the lifebuoy dropped by the drone and reducing the mortality rate of drowning people.

[0020] 3. A life-saving device throwing system of the present invention has a launching frame provided with mechanical claws. When the loaded lifebuoy needs to be thrown again after being thrown, the drone carries the launching frame close to the new lifebuoy, and drives the second gear through the third motor to drive the two second racks to move in opposite directions, so that the two mechanical claws are relatively far away from each other, and the new lifebuoy enters between the two mechanical claws; then the two mechanical claws are relatively close to each other, so that the two mechanical claws hold the new lifebuoy; finally, the four motor drives the two driving wheels to rotate, drives the lifebuoy to rotate, and rotates the fixed bracket until the end of the positioning column slides along the guide groove into the positioning groove, so that the new lifebuoy can be assembled to the launching frame for throwing again for rescue, and the lifebuoy throwing and loading processes are repeated, and multiple lifebuoy throwing can be automatically performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a life-saving device throwing system of the present invention;

[0022] Figure 2 It is a schematic diagram of a state in which a life-saving device throwing system of the present invention is not equipped with a life buoy;

[0023] Figure 3 It is a schematic diagram of the ejection mechanism and the trigger mechanism;

[0024] Figure 4 is a schematic diagram of the connection between the trigger mechanism and the first rack;

[0025] Figure 5 is a schematic diagram of the first rack and trigger block;

[0026] Figure 6 yes Figure 2 A partial enlarged view of the middle A;

[0027] Figure 7 It is a schematic diagram of a life buoy;

[0028] Figure 8 It is a schematic diagram of the arrangement of two permanent magnets and a rotating mechanism;

[0029] Fig. 9 It is an exploded diagram of the rotating mechanism.

[0030] In the figure: 1. lifebuoy; 101. lifebuoy body; 102. fixed bracket; 103. shell; 104. rotating shaft; 105. permanent magnet; 106. brush; 107. positioning column; 108. rotor coil; 109. water inlet hole; 2. ejection mechanism; 201. frame; 202. first motor; 203. first rack; 204. first elastic member; 205. spring plate; 206. fixed shaft; 207. slot ; 208, first gear; 3, trigger mechanism; 301, trigger block; 302, second elastic member; 303, pull rod; 304, second motor; 305, crank; 306, card joint; 4, launch rack; 401, side bracket; 402, second rack; 403, second gear; 404, upper bracket; 405, lower bracket; 406, universal joint; 407, driving wheel; 408, guide groove; 409, positioning groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in conjunction with the accompanying drawings. The following is a preferred embodiment of the present invention, which is intended to provide a basic understanding of the present invention, but is not intended to confirm the key or decisive elements of the present invention or to limit the scope of protection.

[0032] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0034] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0035] It should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Please refer to Figure 1 , 2 3. An embodiment of the present invention provides a life-saving device throwing system, which can be installed on the bottom of a drone and is used for the drone to throw a lifebuoy 1 near a drowning person. The system mainly includes a lifebuoy 1, a launching mechanism 2 and a triggering mechanism 3.

[0037] like Figure 7 As shown, a fixing bracket 102 is provided on the upper portion of the life buoy 1 , and the fixing bracket 102 is fixedly connected to the life buoy 1 . The fixing bracket 102 is used to bear the ejection force to drive the life buoy 1 to move.

[0038] like Figure 2 and 3 As shown, the ejection mechanism 2 includes a frame 201, a first elastic member 204, a spring plate 205, a first gear 208, a first rack 203 and a first motor 202. The upper end of the first elastic member 204 is connected to the frame 201, and the lower end is connected to the spring plate 205. The first elastic member 204 can be a spring. The frame 201 and the spring plate 205 are both arranged horizontally, the first elastic member 204 is arranged vertically, the spring plate 205 is located above the fixed bracket 102, the first rack 203 is arranged vertically and connected to the spring plate 205, and the first gear 208 is connected to the first motor 202 and meshes with the first rack 203.

[0039] The first motor 202 can drive the first gear 208 to rotate, and the first gear 208 meshes with the first rack 203 to drive the first rack 203 to move vertically. When the first rack 203 moves upward, it drives the spring plate 205 to move upward to compress the first elastic member 204. In order to make the first rack 203 move stably in the vertical direction, the first rack 203 can be installed on a vertical guide rail so that it can only move in the vertical direction.

[0040] Recombination Figure 4 and 5 As shown, the trigger mechanism 3 mainly includes a trigger block 301, a second elastic member 302, a pull rod 303 and a second motor 304. The first rack 203 is provided with a clamping slot 207. The trigger block 301 is rotatably connected to the frame 201 and connected to the frame 201 through the second elastic member 302. Here, the clamping slot 207 is arranged on a side of the first rack 203 close to the trigger block 301. A fixed shaft 206 is arranged on a side of the frame 201 close to the first rack 203. The trigger block 301 is rotatably sleeved on the fixed shaft 206 and can be clamped into the clamping slot 207. The second elastic member 302 can be a spring, and the trigger block 301 is pulled to stably clamp the clamping slot 207.

[0041] One end of the pull rod 303 can be rotatably connected to the trigger block 301, and the other end is connected to the second motor 304. After the first elastic member 204 is compressed to a predetermined length, the slot 207 can be just inserted into and clamped, and the second elastic member 302 applies a pulling force to the trigger block 301, so that the trigger stably presses against the first rack 203, so that the first elastic member 204 remains in a compressed state, and energy storage is completed. The second motor 304 can drive the pull rod 303 to rotate, so that the pull rod 303 pulls the trigger block 301 to separate from the slot 207, releases the first rack 203, and drives the spring plate 205 to move downward under the driving force of the restoring force of the first elastic member 204, and the spring plate 205 pushes the fixed bracket 102 downward, thereby ejecting the lifebuoy 1.

[0042] It should be noted that in order to prevent the first gear 208 from hindering the downward movement of the first rack 203, the first gear 208 can be selected as a half gear, that is, the teeth are only set on a part of the circumference. After the first elastic member 204 is compressed to a predetermined length, the first gear 208 and the first rack 203 are no longer engaged, but are in a separated state.

[0043] In some embodiments, in order to ensure that the trigger block 301 is stably inserted into the slot 207, the slot 207 is a V-shaped slot, and a V-shaped clamping joint 306 is provided on the upper end of the trigger block 301 near the first rack 203, and the clamping joint 306 can be inserted into the slot 207. The surface of the slot 207 and the surface of the clamping joint 306 can also be treated with arc surface treatment to facilitate smoother insertion.

[0044] The shape of the trigger block 301 can be flexibly selected according to the actual application scenario. For example, in the present embodiment, the trigger block 301 is a triangle, one vertex of which forms the clamping joint 306 , and the other vertex is connected to the frame 201 through the second elastic member 302 .

[0045] In some embodiments, the output end of the second motor 304 is connected to the crank 305, and one end of the pull rod 303 is rotatably connected to the crank 305. The second motor 304 drives the crank 305 to rotate, and the crank 305 drives the pull rod 303 to rotate, thereby driving the trigger block to rotate around the fixed axis 206, changing the position of the trigger block 301, so that it can leave the slot 207.

[0046] like Figure 2 and 6 As shown, a life-saving device throwing system of the present invention also includes a launching frame 4, which includes two side brackets 401, wherein the two side brackets 401 are respectively located on the two sides of the fixed bracket 102, and the two sides of the fixed bracket 102 are provided with positioning columns 107, and the two positioning columns 107 are arranged symmetrically, and the positioning columns 107 can select spring plungers. Each of the side brackets 401 is provided with a guide groove 408, and the two positioning columns 107 are respectively inserted into the guide grooves 408. The guide groove is Y-shaped, so that the positioning column 107 can be smoothly inserted into the guide groove 408 to complete the automatic loading of the life buoy 1. After the two positioning columns 107 are inserted into the two guide grooves 408, the fixed bracket 102 is in a predetermined position, that is, the life buoy 1 is located at a predetermined launching position. Preferably, a positioning groove 409 is provided at the rear end of the guide groove 408, and the end of the positioning column 107 can slide along the guide groove 408 to the positioning groove 409 and be embedded in the positioning groove 409. When the spring plate 205 pushes the fixing bracket 102 downward, the two positioning posts 107 are compressed and slide out of the two positioning grooves 409 respectively, thereby being separated from the side bracket 401 and stably ejected downward with the lifebuoy 1 .

[0047] Taking into account that a life-saving device throwing system of the present invention needs to be repeatedly loaded and a new lifebuoy 1 needs to be loaded after throwing the lifebuoy 1, and the lifebuoy 1 is thrown multiple times, the launching frame 4 also includes a second gear 403, two second racks 402, two mechanical claws and a third motor. The upper end of each side bracket 401 is connected to one of the second racks 402, and the lower end is connected to one of the mechanical claws. The two second racks 402 are arranged opposite to each other up and down, and the second gear 403 is meshed with the two second racks 402. The third motor is connected to the second gear 403 to drive the two second racks 402 to move in opposite directions, so that the two mechanical claws are relatively close or far away, so that the two mechanical claws are opened to allow the lifebuoy 1 to enter, and the mechanical claws are closed to hold the lifebuoy 1, and then the fixed bracket 102 on the upper part of the lifebuoy 1 is reassembled to the two side brackets 401 through the mechanical arm.

[0048] The mechanical claw can be flexible or according to the actual application scenario. As described in this embodiment, the mechanical claw includes an upper bracket 404, a lower bracket 405, a universal joint 406, a driving wheel 407 and a fourth motor. The upper end of the upper bracket 404 is fixedly connected to the lower end of the side bracket 401, and the lower end is rotatably connected to the upper end of the lower bracket 405. A torsion spring is also provided between the lower end of the upper bracket 404 and the upper end of the lower bracket 405. The driving wheel 407 is rotatably connected to the lower bracket 405. The driving wheel 407 is also connected to the universal joint 406, and the fourth motor is connected to the universal joint 406. Here, the upper bracket 404 and the lower bracket 405 are both U-shaped brackets. The lower end of the upper bracket 404 is inserted into the upper end of the lower bracket 405 and is rotatably connected through a connecting shaft. The torsion spring is arranged on the connecting shaft and connects the upper bracket 404 and the lower bracket 405. The torsion spring applies torque to the lower bracket 405, so that the lower bracket 405 can rotate adaptively and maintain a stable state. The universal joint 406 is located inside the upper bracket 404 and the lower bracket 405. The upper end of the universal joint 406 can rotatably penetrate the upper bracket 404. The fourth motor is installed on the upper bracket 404 and connected to the universal joint 406 to drive the universal joint 406 to rotate, thereby driving the driving wheel 407 to rotate. After the two mechanical claws are closed to hold the lifebuoy 1, the two driving wheels 407 are respectively in contact with the two sides of the lifebuoy 1. After that, the rotation of the two driving wheels 407 can drive the lifebuoy 1 to rotate, so that the fixed bracket 102 rotates until the end of the positioning column 107 slides along the guide groove 408 to the positioning groove 409, so that the lifebuoy 1 can be reassembled to the launching frame 4 for throwing again for rescue.

[0049] In addition, in order to make the lifebuoy 1 land vertically more accurately after being ejected, the lifebuoy 1 includes a lifebuoy body 101, two permanent magnets and a rotating mechanism, the lifebuoy body 101 is installed at the bottom of the fixed bracket 102, the two permanent magnets are installed on the fixed bracket 102 and are arranged opposite to each other up and down, the rotating mechanism includes a shell 103, a rotating shaft 104 and a rotor coil 108, the rotating shaft 104 can be rotatably installed on the fixed bracket 102, the shell 103 is sleeved on the rotating shaft 104, the rotor coil 108 is arranged in the shell 103 and sleeved on the rotating shaft 104, the rotor coil 108 is located between the two permanent magnets, and the shell 103 is provided with a plurality of water inlet holes 109.

[0050] For details, please refer to Figure 7 and 8 The two permanent magnets are mounted on the fixed bracket 102 and arranged opposite to each other up and down. The two permanent magnets 105 are located above the lifebuoy body 101, and the opposite ends of the two permanent magnets have opposite magnetic properties, that is, the opposite ends of the two permanent magnets are N poles and S poles respectively, so that a stable external permanent magnetic field can be formed.

[0051] Please refer to Fig. 9 The rotating mechanism includes a shell 103, a rotating shaft 104 and a rotor coil 108. The rotating shaft 104 can be rotatably installed on the fixed bracket 102. The shell 103 is sleeved on the rotating shaft 104. The rotor coil 108 is arranged in the shell 103 and sleeved on the rotating shaft 104. The rotor coil 108 is located between the two permanent magnets. The shell 103 is provided with a plurality of water inlet holes 109.

[0052] A rectangular frame is provided on the upper part of the fixed bracket 102, and the rotating shaft 104 is arranged horizontally and rotatably passes through the opposite sides of the rectangular frame at both ends. The two permanent magnets 105 are symmetrically arranged with respect to the rotating shaft 104 and have opposite magnetic properties, and the two permanent magnets 105 are respectively fixedly mounted on the upper surface and the lower surface of the inner wall of the rectangular frame.

[0053] The two ends of the rotating shaft 104 respectively penetrate the two sides of the fixed bracket 102, and the two ends of the rotating shaft 104 are provided with brushes 106, and the brushes 106 are connected to the rotor coil 108 through wires. The rotor coil 108 is powered by the two brushes 106, and the rotation of the brushes 106 can cause the direction of the DC current to change periodically, forming a periodic electromagnetic field around the rotor coil 108. The rotor coil 108 accelerates the rotation under the combined action of the periodic electromagnetic field and the external permanent magnetic field, and drives the housing 103 to rotate. In order to make the housing 103 rotate stably, the housing 103 is a hollow cylinder, and the housing 103 is coaxially arranged with the rotating shaft 104. In this embodiment, a power supply connector is provided on the inner side of the side bracket 401, and the power supply connector is connected to the brush 106. By arranging a power supply line inside the side bracket 401, DC power is input to the power supply connector, thereby powering the rotor coil 108.

[0054] After the lifebuoy body 101 falls into the water, the end closer to the rotating mechanism will enter the water first, and the water will quickly fill the shell 103 through the water inlet holes 109 to achieve rapid deceleration. In order to make it easier and faster for water to penetrate the shell 103, the water inlet holes 109 are long holes arranged along the axial direction of the shell 103, and the water inlet holes 109 are arranged around the shell 103 at intervals.

[0055] When a life-saving device throwing system of the present invention is installed at the bottom of a drone, the frame 201, the first motor 202 and the second motor 304 are fixedly installed on the drone, the first rack 203 can be vertically slidably installed on the drone, and the two side brackets 401 can be horizontally slidably installed on the drone.

[0056] During emergency rescue, the first gear 208 is first driven to rotate by the first motor 202, so that the first rack 203 moves vertically upward, driving the spring plate 205 to move vertically upward to squeeze the first elastic member 204. After the first elastic member 204 is compressed to a predetermined length, the clamping slot 207 can just fit into and clamp the clamping slot 207. The second elastic member 302 applies a pulling force to the trigger block 301, so that the trigger stably presses the first rack 203, so that the first elastic member 204 remains in a compressed state, and the first elastic member 204 completes energy storage. The battery carried by the drone transmits direct current, the rotor coil 108 rotates, and the rotation of the rotor coil 108 drives the rotation of the shaft 104. The brush 106 changes the direction of the current, thereby keeping the direction of the electromagnetic force on the rotor coil 108 unchanged, and the rotor coil 108 can accelerate the rotation in a fixed direction, so that the rotating mechanism completes energy storage.

[0057] After the drone transports the life-saving device throwing system to the target location, the second motor 304 is controlled to drive the pull rod 303 to rotate, so that the pull rod 303 pulls the trigger block 301 to separate from the slot 207, releases the first rack 203, and the first elastic member 204 resumes driving to push the spring plate 205 downward, and the spring plate 205 pushes the fixed bracket 102 downward, thereby ejecting the lifebuoy 1.

[0058] And the direct current input by the rotor coil 108 is disconnected, and the rotating mechanism rotating at a high speed has a large angular momentum. According to the gyro effect, the life buoy 1 can maintain its posture in the air and fall in a vertical posture until it falls to the water surface near the drowning person; finally, after the life buoy 1 falls into the water, the end close to the rotating mechanism is heavier and will enter the water first, and the water will quickly fill the shell 103 through the water inlet hole 109 to achieve rapid deceleration, and the decelerating rotating mechanism cannot maintain the life buoy 1 vertical, and finally the life buoy 1 floats horizontally on the water. Since the resistance of water is much greater than the air resistance, the rotating mechanism can stop in a short time when the life buoy 1 reaches the water surface. At this time, the life buoy 1 will no longer remain upright due to the angular momentum of the rotor coil 108, and the fallen life buoy 1 is convenient for the drowning person to grasp, thereby completing the lifesaving.

[0059] In this article, the directional words such as front, back, top, and bottom involved are defined by the positions of the parts in the drawings and the positions of the parts relative to each other, just for the sake of clarity and convenience in expressing the technical solution. It should be understood that they are relative concepts and can change accordingly according to different ways of use and placement, and the use of the directional words should not limit the scope of protection claimed in this application.

[0060] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A life-saving device throwing system, characterized in that: include: A life buoy, the upper part of which is provided with a fixing bracket; The ejection mechanism comprises a frame, a first elastic member, a spring plate, a first gear, a first rack and a first motor, wherein the first elastic member is connected to the frame at an upper end and connected to the spring plate at a lower end, the spring plate is located above the fixed bracket, the first rack is vertically arranged and connected to the spring plate, the first gear is connected to the first motor and meshes with the first rack; And a trigger mechanism, which includes a trigger block, a second elastic member, a pull rod and a second motor, the first rack is provided with a slot, the trigger block can be rotatably connected to the frame and connected to the frame through the second elastic member, one end of the pull rod can be rotatably connected to the trigger block, and the other end is connected to the second motor, after the first elastic member is compressed to a predetermined length, the slot just clamps the slot, and the second motor can drive the trigger block to rotate, so that the trigger block is separated from the slot.

2. A lifesaving device throwing system as claimed in claim 1, characterized in that: The clamping groove is a V-shaped groove, and the upper end of the trigger block close to the first rack is provided with a V-shaped clamping joint, and the clamping joint can be clamped into the clamping groove.

3. A lifesaving device throwing system as claimed in claim 2, characterized in that: The trigger block is in the shape of a triangle, one vertex of which forms the clamping joint, and the other vertex is connected to the frame through the second elastic member.

4. A lifesaving device throwing system according to any one of claims 1 to 3, characterized in that: The slot is arranged on a side of the first rack close to the trigger block, a fixed shaft is arranged on a side of the frame close to the first rack, and the trigger block is rotatably sleeved on the fixed shaft and can be inserted into the slot.

5. A lifesaving device throwing system as claimed in claim 1, characterized in that: The output end of the second motor is connected to a crank, and one end of the pull rod is rotatably connected to the crank.

6. A lifesaving device throwing system as claimed in claim 1, characterized in that: It also includes a launching frame, which includes two side brackets, wherein the two side brackets are respectively located on both sides of the fixed bracket, and positioning columns are provided on both sides of the fixed bracket, and the positioning columns are spring plungers. Each side bracket is provided with a guide groove, and the two positioning columns are respectively inserted into the guide grooves.

7. A lifesaving device throwing system as claimed in claim 6, characterized in that: The launching frame also includes a second gear, two second racks, two mechanical claws and a third motor. The upper end of each side bracket is connected to one of the second racks, and the lower end is connected to one of the mechanical claws. The two second racks are arranged opposite to each other up and down. The second gear is meshed with the two second racks. The third motor is connected to the second gear to drive the two second racks to move in opposite directions, so that the two mechanical claws are relatively close to or away from each other.

8. A lifesaving device throwing system as claimed in claim 7, characterized in that: The mechanical claw includes an upper bracket, a lower bracket, a universal joint, a driving wheel and a fourth motor. The upper end of the upper bracket is fixedly connected to the lower end of the side bracket, and the lower end is rotatably connected to the upper end of the lower bracket. A torsion spring is also provided between the lower end of the upper bracket and the upper end of the lower bracket. The driving wheel is rotatably connected to the lower bracket, and the driving wheel is also connected to the universal joint. The fourth motor is connected to the universal joint to drive the driving wheel to rotate, thereby driving the lifebuoy to rotate through the two driving wheels, so that the positioning column is stuck in the guide groove.

9. A lifesaving device throwing system as claimed in claim 1, characterized in that: The lifebuoy includes a lifebuoy body, two permanent magnets and a rotating mechanism. The lifebuoy body is installed at the bottom of the fixed bracket. The two permanent magnets are installed on the fixed bracket and are arranged opposite to each other up and down. The rotating mechanism includes a shell, a rotating shaft and a rotor coil. The rotating shaft is rotatably installed on the fixed bracket. The shell is sleeved on the rotating shaft. The rotor coil is arranged in the shell and sleeved on the rotating shaft. The rotor coil is located between the two permanent magnets. The shell is provided with multiple water inlet holes.

10. A lifesaving device throwing system as claimed in claim 9, characterized in that: The two ends of the two rotating shafts respectively pass through the two sides of the fixing bracket, and brushes are arranged at both ends of the rotating shafts, and the brushes are connected to the rotor coils.

Images