Lifesaving device ejection throwing mechanism

Abstract

The utility model provides an ejection throwing mechanism of a lifesaving device, 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; 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 life buoy releasing device has the beneficial effects that the accuracy and speed of releasing life buoys by the unmanned aerial vehicle are improved, and the probability of rescue failure of drowners is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to emergency rescue equipment technical field especially relates to a lifesaving device ejector mechanism. BACKGROUND

[0002] When the emergency rescue in the sea, river and other water areas, the life buoy carried by the unmanned aerial vehicle reaches the destination, and the unmanned aerial vehicle throws the life buoy near the drowning person to achieve the purpose of rescue. The unmanned aerial vehicle generally directly throws the carried life buoy, and the life buoy slowly descends after being thrown until it falls on the water surface. During the falling process of the life buoy, factors such as wind force will affect the attitude stability of the life buoy, and in addition, the adverse effect of positioning accuracy may cause the life buoy to be difficult to accurately throw, and the throwing is not in place, which cannot accurately reach the position of the drowning person, delays the rescue opportunity and further causes the failure of the rescue action. SUMMARY

[0003] Therefore, in order to solve the above problems existing in the unmanned aerial vehicle throwing the life buoy, the embodiment of the utility model provides a lifesaving device ejector mechanism.

[0004] The embodiment of the utility model provides a lifesaving device ejector mechanism, which comprises:

[0005] A life buoy;

[0006] An ejection mechanism, which comprises a rack, a first elastic member, a spring plate, a first gear, a first rack and a first motor, the upper end of the first elastic member is connected to the rack, and the lower end is connected to the spring plate, the spring plate is located above the life buoy, the first rack is vertically arranged and connected to the spring plate, the first gear is connected to the first motor and engaged with the first rack;

[0007] And a trigger mechanism, which comprises a trigger block, a second elastic member, a pull rod and a second motor, the first rack is provided with a clamping groove, the clamping groove is arranged on one side of the first rack close to the rack, one side of the trigger block close to the first rack is provided with a clamping joint, the trigger block is rotatably connected to the rack and connected to the rack through the second elastic member, one end of the pull rod is 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 clamping joint is tightly clamped in the clamping groove, and the second motor can drive the trigger block to rotate, so that the clamping joint is separated from the clamping groove.

[0008] The lifesaving device ejector mechanism comprises a lifesaving device, a lifesaving device ejector mechanism and a trigger mechanism, the lifesaving device ejector mechanism comprises a rack, a first elastic member, a spring plate, a first gear, a first rack and a first motor, the upper end of the first elastic member is connected to the rack, and the lower end is connected to the spring plate, the spring plate is located above the life buoy, the first rack is vertically arranged and connected to the spring plate, the first gear is connected to the first motor and engaged with the first rack, and the trigger mechanism comprises a trigger block, a second elastic member, a pull rod and a second motor.

[0009] Further, the card slot is a V-shaped slot, the card joint is V-shaped, and the card joint can be clamped into the card slot.

[0010] Further, the trigger block is triangular, one vertex of the trigger block forms the card joint, and the other vertex of the trigger block is connected to the rack by the second elastic member.

[0011] Further, the card slot is arranged on a side of the first rack close to the trigger block, the rack is provided with a fixed shaft close to the first rack, the trigger block is rotatably sleeved on the fixed shaft and can be clamped into the card slot.

[0012] Further, the output end of the second motor is connected with a crank, and one end of the pull rod is rotatably connected with the crank.

[0013] Further, the launching rack further comprises two side supports, the two side supports are respectively arranged on two sides of the fixed support, the two sides of the fixed support are respectively provided with positioning columns, the positioning columns are spring plungers, each side support is provided with a guide groove, and the two positioning columns are clamped into the guide grooves.

[0014] Further, the guide groove is Y-shaped, the rear end of the guide groove is provided with a positioning groove, and the end of the positioning column can slide along the guide groove to the positioning groove and be embedded in the positioning groove.

[0015] Further, the launching rack further comprises a second gear, two second racks, two mechanical claws and a third motor, the upper end of each side support is connected with the second rack, the lower end of each side support is connected with the mechanical claw, the two second racks are arranged in an opposite manner, the second gear is engaged with the two second racks, and the third motor is connected with the second gear to drive the two second racks to move in opposite directions, so that the two mechanical claws relatively approach or move away from each other.

[0016] Further, the mechanical claw comprises an upper support, a lower support, a universal joint, a driving wheel and a fourth motor, the upper end of the upper support is fixedly connected with the lower end of the side support, the lower end of the upper support is rotatably connected with the upper end of the lower support, a torsional spring is arranged between the lower end of the upper support and the upper end of the lower support, the driving wheel is rotatably connected with the lower support, the driving wheel is further connected with the universal joint, and the fourth motor is connected with the universal joint to drive the driving wheel to rotate, so that the life buoy is driven to rotate by the two driving wheels, and the positioning column is clamped into the guide groove.

[0017] The technical scheme provided by the embodiment of the utility model has the beneficial effects that:

[0018] 1. The ejecting and throwing mechanism of the lifesaving device is installed on the unmanned aerial vehicle, the first gear is driven by the first motor to drive the first rack to move upward, the spring plate is driven to move upward to compress the first elastic member, the trigger block is clamped with the clamping groove on the first rack when the first rack moves to the predetermined position, and the energy storage is completed; when the lifesaving ring needs to be thrown, the trigger block is separated from the clamping groove by driving the connecting rod by the second motor, the first rack and the spring plate are released, the restoring force of the first elastic member drives the spring plate to move downward, the lifesaving ring is pushed out downward, under the action of the ejection, the lifesaving ring quickly falls towards the target position, the lifesaving ring quickly and accurately reaches the vicinity of the drowning person, the accuracy and speed of the unmanned aerial vehicle for throwing the lifesaving ring are improved, and the probability of failure of the rescue of the drowning person is reduced.

[0019] 2. The ejecting and throwing mechanism of the lifesaving device, the launching frame is provided with mechanical claws, when the loaded lifesaving ring needs to be thrown again, the unmanned aerial vehicle carries the launching frame to approach the new lifesaving ring, the two second racks are driven to move in opposite directions by the third motor driving the second gear, the two mechanical claws are relatively far away from each other, and the new lifesaving ring enters between the two mechanical claws; the two mechanical claws are relatively close to each other, and the two mechanical claws hold the new lifesaving ring; finally, the two driving wheels are driven to rotate by the fourth motor, the lifesaving ring is driven to rotate, the fixed support is rotated, and the positioning column end portion slides into the positioning groove along the guide groove, so that the new lifesaving ring can be assembled to the launching frame for throwing again, and the lifesaving ring throwing and loading process can be repeated, and the lifesaving ring can be thrown automatically for multiple times. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic view of the ejecting and throwing mechanism of the lifesaving device of the utility model;

[0021] Figure 2 is a schematic view of the ejecting and throwing mechanism of the lifesaving device of the utility model in a state without installing a lifesaving ring;

[0022] Figure 3 is a schematic view of the ejecting mechanism and the triggering mechanism;

[0023] Figure 4 is a connection schematic view of the triggering mechanism and the first rack;

[0024] Figure 5 is a schematic view of the first rack and the trigger block;

[0025] Figure 6 is Figure 2 is an enlarged view of part A in figure 6;

[0026] Figure 7 is a schematic view of the lifesaving ring.

[0027] In the figure: 1, life buoy; 101, life buoy body; 102, fixed support; 103, positioning column; 2, ejection mechanism; 201, rack; 202, first motor; 203, first rack; 204, first elastic member; 205, spring plate; 206, fixed shaft; 207, clamping groove; 208, first gear; 3, trigger mechanism; 301, trigger block; 302, second elastic member; 303, pull rod; 304, second motor; 305, crank; 306, clamping joint; 4, launcher; 401, side support; 402, second rack; 403, second gear; 404, upper support; 405, lower support; 406, universal joint; 407, drive wheel; 408, guide groove; 409, positioning groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will combine the drawings to make the further description to the utility model embodiment. The following introduces one of the more optimal ones in multiple possible embodiments of the utility model, and is intended to provide the basic understanding of the utility model, but is not intended to confirm the key or decisive elements of the utility model or limit the scope of protection.

[0029] In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative of the examples and not as a limitation. Thus, other examples of the example embodiments can have different values.

[0030] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the specification, where appropriate.

[0031] It should be noted that like reference numerals and letters refer to like items in the several views of the drawings, and as such, definitions of those items in one view are deemed to be incorporated in the definitions in the other views. It is to be understood that the drawings are not necessarily to scale.

[0032] It should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be direct connection, can also be indirect connection through intermediate medium, can be internal communication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] Please refer to Figure 1 , 2And 3, the utility model discloses an embodiment provides a lifesaving device ejects throwing mechanism, can be installed at the bottom of unmanned plane, be applied to unmanned plane to throw lifesaving buoy 1 to the near of the person who drowns, mainly including lifesaving buoy 1, ejecting mechanism 2 and trigger mechanism 3.

[0034] As Figure 7 Shown, the lifesaving buoy 1 upper portion is equipped with fixed support 102, the fixed support 102 with lifesaving buoy 1 fixed connection, the fixed support 102 is used to bear the ejecting action force, to drive lifesaving buoy 1 movement. Here, the lifesaving buoy 1 includes lifesaving buoy body 101 and fixed support 102, the fixed support 102 is rectangular frame, lifesaving buoy body 101 upper end fixed connection the lower end of fixed support 102.

[0035] As Figure 2 And 3 Shown, the ejecting mechanism 2 includes frame 201, first elastic member 204, spring plate 205, first gear 208, first rack 203 and first motor 202. The first elastic member 204 upper end connects frame 201, lower end connects spring plate 205, the first elastic member 204 can select spring, the frame 201 and the spring plate 205 are both horizontally arranged, the first elastic member 204 is vertically arranged, the spring plate 205 is located above the fixed support 102, the first rack 203 is vertically arranged and is connected with spring plate 205, the first gear 208 is connected with first motor 202 and is engaged with first rack 203.

[0036] The first motor 202 can drive the first gear 208 to rotate, and the first gear 208 is engaged with the first rack 203 to drive the first rack 203 to move vertically. When the first rack 203 moves upward, the spring plate 205 moves upward to compress the first elastic member 204. In order to make the first rack 203 move stably along the vertical direction, the first rack 203 can be installed on the vertical guide rail, so that it can only move along the vertical direction.

[0037] Again in combination Figure 4 And 5As shown, the trigger mechanism 3 mainly comprises 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 groove 207. The trigger block 301 is rotatably connected to the rack 201 and connected to the rack 201 through the second elastic member 302. Here, the clamping groove 207 is arranged on the side of the first rack 203 close to the trigger block 301. The side of the rack 201 close to the first rack 203 is provided with a fixed shaft 206. The trigger block 301 is rotatably sleeved on the fixed shaft 206 and can be clamped into the clamping groove 207. The second elastic member 302 can be a spring. By pulling the trigger block 301, the trigger block 301 can be stably clamped in the clamping groove 207.

[0038] One end of the pull rod 303 is 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 clamping groove 207 can be clamped into and clamped tightly in the clamping groove 207. The second elastic member 302 applies a pulling force to the trigger block 301, so that the trigger stably abuts against the first rack 203, and the first elastic member 204 remains in a compressed state, completing energy storage. The second motor 304 can drive the pull rod 303 to rotate, so that the pull rod 303 pulls the trigger block 301 away from the clamping groove 207, releases the first rack 203, and drives the spring plate 205 to move downward under the restoring force of the first elastic member 204. The spring plate 205 pushes the fixed support 102 downward, so that the life buoy 1 is ejected.

[0039] It should be noted that, in order to avoid the first gear 208 hindering the downward movement of the first rack 203, the first gear 208 can be a half gear, i.e., only a part of the circumference is provided with gear teeth. After the first elastic member 204 is compressed to a predetermined length, the first gear 208 is no longer engaged with the first rack 203, but is in a separated state.

[0040] In some embodiments, in order to ensure that the trigger block 301 is stably clamped into the clamping groove 207, the clamping groove 207 is a V-shaped groove. The side of the trigger block 301 close to the first rack 203 is provided with a V-shaped clamping joint 306. The clamping joint 306 can be clamped into the clamping groove 207. The surfaces of the clamping groove 207 and the clamping joint 306 can also be arc-shaped to facilitate clamping.

[0041] The shape of the trigger block 301 can be flexibly selected according to the actual application scenario. In this embodiment, the trigger block 301 is triangular. One of the vertices forms the clamping joint 306, and the other vertex is connected to the rack 201 through the second elastic member 302.

[0042] In some embodiments, the output end of the second motor 304 is connected with a crank 305, and one end of the pull rod 303 is rotatably connected with 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 shaft 206, changing the position of the trigger block 301, so that the trigger block 301 can be separated from the clamping groove 207.

[0043] As shown in Figure 2 and 6 The ejecting and throwing mechanism of the lifesaving device further comprises a launching frame 4, which comprises two side supports 401, wherein the two side supports 401 are respectively located on the two sides of the fixed support 102, and the two sides of the fixed support 102 are respectively provided with positioning columns 103, and the two positioning columns 103 are symmetrically arranged. The positioning column 103 can be a spring plunger. Each side support 401 is provided with a guide groove 408, and the two positioning columns 103 are respectively clamped into the guide grooves 408. The guide groove is Y-shaped, which can smoothly clamp the positioning column 103 into the guide groove 408, and complete the automatic loading of the life buoy 1. After the two positioning columns 103 are clamped into the two guide grooves 408, the fixed support 102 is in a predetermined position, that is, the life buoy 1 is located at a predetermined launching position. Preferably, the rear end of the guide groove 408 is provided with a positioning groove 409, and the end of the positioning column 103 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 fixed support 102 downward, the two positioning columns 103 are compressed and slide out of the two positioning grooves 409 respectively, so as to be separated from the side support 401 and stably shoot downward with the life buoy 1.

[0044] Considering that the ejecting and throwing mechanism of the lifesaving device needs to repeatedly load new life buoys 1 after throwing the life buoy 1, and needs to throw the life buoy 1 for multiple times, the launching frame 4 further comprises a second gear 403, two second racks 402, two mechanical claws and a third motor. The upper end of each side support 401 is connected with a second rack 402, and the lower end is connected with a mechanical claw. The two second racks 402 are oppositely arranged, the second gear 403 is engaged with the two second racks 402, and the third motor is connected with the second gear 403 to drive the two second racks 402 to move towards opposite directions, so that the two mechanical claws relatively approach or move away from each other, thereby making the two mechanical claws open to allow the life buoy 1 to enter, and making the mechanical claws close to hold the life buoy 1, and then the mechanical hand reassembles the fixed support 102 on the upper part of the life buoy 1 to the two side supports 401.

[0045] The mechanical claws can be flexible or not according to the actual application scene. As described in the embodiment, the mechanical claws include an upper support 404, a lower support 405, a universal joint 406, a drive wheel 407 and a fourth motor, the upper end of the upper support 404 is fixedly connected to the lower end of the side support 401, the lower end is rotatably connected to the upper end of the lower support 405, a torsional spring is further arranged between the lower end of the upper support 404 and the upper end of the lower support 405, the drive wheel 407 is rotatably connected to the lower support 405, the drive wheel 407 is further connected to the universal joint 406, and the fourth motor is connected to the universal joint 406. Here, the upper support 404 and the lower support 405 are both U-shaped supports, the lower end of the upper support 404 is inserted into the upper end of the lower support 405 and rotatably connected through a connecting shaft, the torsional spring is arranged on the connecting shaft and connected to the upper support 404 and the lower support 405, the torsional spring applies a torque to the lower support 405, so that the lower support 405 can adaptively rotate and remain in a stable state. The universal joint 406 is located inside the upper support 404 and the lower support 405, the upper end of the universal joint 406 rotatably penetrates the upper support 404, the fourth motor is installed on the upper support 404 and connected to the universal joint 406, so as to drive the universal joint 406 to rotate and drive the drive wheel 407 to rotate. After the two mechanical claws are folded to hold the life buoy 1, the two drive wheels 407 are respectively in contact with the two sides of the life buoy 1, and then the rotation of the two drive wheels 407 can drive the life buoy 1 to rotate, so that the fixed support 102 rotates, until the end of the positioning column 103 slides along the guide groove 408 to the positioning groove 409, so that the life buoy 1 can be reassembled to the launching rack 4 for throwing again.

[0046] When the ejecting and throwing mechanism of the life-saving device is installed at the bottom of the unmanned aerial vehicle, the rack 201, the first motor 202 and the second motor 304 are fixedly installed on the unmanned aerial vehicle, the first rack 203 is vertically slidably installed on the unmanned aerial vehicle, and the two side supports 401 are horizontally slidably installed on the unmanned aerial vehicle.

[0047] In the emergency rescue, first, the first motor 202 drives the first gear 208 to rotate, the first rack 203 moves vertically upward, the spring plate 205 moves vertically upward, the first elastic member 204 is extruded, the first elastic member 204 is compressed to a predetermined length, the clamping groove 207 can be clamped and clamped, the second elastic member 302 applies a pulling force to the trigger block 301, the trigger stably abuts the first rack 203, the first elastic member 204 is kept in a compressed state, the first elastic member 204 completes energy storage. And the rotor coil 108 rotates, the rotor coil 108 rotates to drive the rotating shaft 104 to rotate, the electric brush 106 changes the direction of the current, thereby keeping the direction of the electromagnetic force of the rotor coil 108 unchanged, the rotor coil 108 can rotate in a fixed direction, and the rotating mechanism completes energy storage.

[0048] After the unmanned aerial vehicle carries the lifesaving device ejecting mechanism to the target position, the second motor 304 drives the pull rod 303 to rotate, the pull rod 303 pulls the trigger block 301 and the clamping groove 207 to separate, the first rack 203 is released, the first elastic member 204 restores to drive the spring plate 205 to move downward, the spring plate 205 pushes the fixed support 102 downward, thereby ejecting the life buoy 1, the life buoy 1 quickly falls towards the target position, and accurately reaches the vicinity of the drowning person, thereby completing lifesaving.

[0049] In this paper, the front, back, up, down and other orientation words are defined by the position of the parts in the drawing and the position of the parts relative to each other in the drawing, only to express the technical scheme clearly and conveniently. It should be understood that they are relative concepts, which can be changed accordingly according to different ways of use and placement, and the use of the orientation words should not limit the scope of the application.

[0050] In the case of no conflict, the above-mentioned embodiments and features in the embodiments can be combined with each other. The above-mentioned only for the preferred embodiments of the present application, and not to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A life-saving device ejection and throwing mechanism, characterized in that: include: Lifebuoy; The ejection mechanism includes a frame, a first elastic element, a spring plate, a first gear, a first rack, and a first motor. The upper end of the first elastic element is connected to the frame, and the lower end is connected to the spring plate. The spring plate is located above the life ring. 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. The triggering mechanism includes a trigger block, a second elastic element, a pull rod, and a second motor. The first rack has a slot located on the side of the rack near the frame. The trigger block has a locking connector on the side near the first rack. The trigger block is rotatably connected to the frame and connected to the frame via the second elastic element. One end of the pull rod is rotatably connected to the trigger block, and the other end is connected to the second motor. When the first elastic element is compressed to a predetermined length, the locking connector precisely locks into the slot. The second motor can drive the trigger block to rotate, causing the locking connector to separate from the slot.

2. The life-saving device ejection and throwing mechanism as described in claim 1, characterized in that: The lifebuoy includes a lifebuoy body and a fixed bracket. The fixed bracket is a rectangular frame. The upper end of the lifebuoy body is fixedly connected to the lower end of the fixed bracket, and the spring plate is located above the fixed bracket.

3. The life-saving device ejection and throwing mechanism as described in claim 1, characterized in that: The card slot is a V-shaped slot, and the card connector is V-shaped, and the card connector can be inserted into the card slot.

4. The life-saving device ejection and throwing mechanism as described in claim 3, characterized in that: The trigger block is triangular, with one apex forming the snap connector and the other apex connecting to the frame via the second elastic element.

5. The life-saving device ejection and throwing mechanism as described in claim 1, characterized in that: The slot is located on the side of the first rack near the trigger block. The frame is provided with a fixed shaft on the side near the first rack. The trigger block is rotatably sleeved on the fixed shaft and can be inserted into the slot.

6. The life-saving device ejection and throwing mechanism as described in claim 1, characterized in that: The output end of the second motor is connected to the crank, and one end of the pull rod is rotatably connected to the crank.

7. The life-saving device ejection and throwing mechanism as described in claim 2, characterized in that: It also includes a launcher, which includes two side supports, wherein the two side supports are respectively located on both sides of the fixed support. Both sides of the fixed support are provided with positioning posts, and the positioning posts are spring plungers. Each side support is provided with a guide groove, and the two positioning posts are respectively inserted into the guide groove.

8. The life-saving device ejection and throwing mechanism as described in claim 7, characterized in that: The guide groove is Y-shaped, and a positioning groove is provided at the rear end of the guide groove. The end of the positioning post can slide along the guide groove to the positioning groove and be embedded in the positioning groove.

9. The life-saving device ejection and throwing mechanism as described in claim 7, characterized in that: The launcher also includes a second gear, two second racks, two mechanical claws and a third motor. Each side bracket is connected to a second rack at its upper end and a mechanical claw at its lower end. The two second racks are arranged opposite each other. The second gear meshes with the two second racks. The third motor is connected to the second gear and drives the two second racks to move in opposite directions, so that the two mechanical claws move closer or further apart.

10. The life-saving device ejection and throwing mechanism as described in claim 9, characterized in that: The mechanical claw includes an upper bracket, a lower bracket, a universal joint, a drive 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 drive wheel is rotatably connected to the lower bracket and is also connected to the universal joint. The fourth motor is connected to the universal joint to drive the drive wheel to rotate, thereby driving the lifebuoy to rotate through the two drive wheels, so that the positioning pin is engaged in the guide groove.

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