A fire-extinguishing bomb throwing device for a multi-rotor fire-fighting drone

Abstract

The present invention discloses a fire extinguishing bomb throwing device for a multi-rotor fire-fighting drone, which belongs to the field of fire extinguishing bomb throwing devices. The fire extinguishing bomb throwing device adopts a fire extinguishing ball loading structure in the form of a cartridge. When loading, the fire extinguishing balls only need to be thrown into the cartridge one by one, and there is no need to use corresponding mounting buckle parts or locking parts to mount the fire extinguishing balls one by one, which greatly improves the loading efficiency of the fire extinguishing balls. At the same time, since the fire extinguishing balls are directly thrown into the cartridge for loading, there is no need to set other auxiliary structures on the outer surface of the fire extinguishing ball shell, which is conducive to the regular production and manufacturing of the outer surface of the fire extinguishing ball shell and reduces the manufacturing complexity.

Description

Technical Field

[0001] The present invention relates to the field of fire extinguishing bomb throwing devices, and more particularly to a fire extinguishing bomb throwing device for a multi-rotor fire-fighting drone. Background Art

[0002] With the rapid development of society and the rise of high-rise buildings, large warehouses, and other facilities, fire rescue operations are facing numerous new challenges. Multi-rotor firefighting drones, with their high maneuverability, ability to quickly reach fire scenes, and ability to operate in complex environments, have become a crucial auxiliary tool for modern firefighting and rescue operations. The fire bomb delivery mechanism, a key component of multi-rotor firefighting drones, directly impacts their effectiveness.

[0003] The fire extinguishing bombs currently in use can be roughly divided into two categories according to their appearance and structure: spherical fire extinguishing balls and bullet-shaped fire extinguishing bombs. Although the fire extinguishing bomb throwing device of the existing fire extinguishing balls is relatively convenient to use, for the purpose of mounting, the fire extinguishing ball usually needs to be provided with a mounting buckle part, and the fire extinguishing bomb throwing device usually needs to be provided with an automatically opening and closing lock part. When loading, the fire extinguishing balls need to be mounted one by one on the corresponding lock part of the fire extinguishing bomb throwing device through the mounting buckle part, which not only increases the manufacturing complexity of the fire extinguishing ball shell, but also the loading form of mounting the fire extinguishing balls one by one on the fire extinguishing bomb throwing device is not conducive to improving the loading efficiency. Therefore, it is particularly necessary to develop a fire extinguishing ball that can be loaded more quickly and conveniently and can reduce the complexity of the shell structure of the fire extinguishing ball when it is adapted to loading. Therefore, we propose a fire extinguishing bomb throwing device for a multi-rotor fire-fighting drone to solve the above-mentioned problems. Summary of the Invention

[0004] Technical problem to be solved: In response to the problems existing in the prior art, the purpose of the present invention is to provide a fire extinguishing bomb throwing device for a multi-rotor fire-fighting drone, which adopts a fire extinguishing ball loading structure in the form of a cartridge. When loading, it is only necessary to throw the fire extinguishing balls into the cartridge one by one, and there is no need to use the corresponding mounting buckle part or the locking part to mount the fire extinguishing balls one by one, which greatly improves the loading efficiency of the fire extinguishing balls. At the same time, this type of fire extinguishing bomb throwing device, since the fire extinguishing ball is directly thrown into the cartridge for loading, there is no need to set other auxiliary structures on the outer surface of the fire extinguishing ball shell, which is conducive to the regular production and manufacturing of the outer surface of the fire extinguishing ball shell and reduces the complexity of manufacturing.

[0005] Technical solution: To solve the above problems, the present invention adopts the following technical solution.

[0006] A fire-extinguishing grenade throwing device for a multi-rotor firefighting drone includes an ammunition cartridge, an upper cover plate being fixedly mounted on the top of the cartridge cartridge by bolts, a guide funnel being fixedly mounted on the bottom of the inner wall of the cartridge cartridge by bolts, and sockets being formed on both sides of the cartridge cartridge at the bottom of the guide funnel, and spring plunger mechanisms of the same structure being inserted into both sockets;

[0007] The spring plunger mechanism includes a shell inserted into the corresponding socket hole, a push rod is slidably connected to the shell, and a group of mounting nuts are threadedly connected to the shell at the connection of the socket hole, a support spring is sleeved inside the shell, two ends of the support spring are respectively in contact with one side of the inner wall of the shell and one end of the push rod, and the other end of the push rod located on the outside of the shell is fixedly installed with a contact pulley, a group of limiting fins is fixedly welded to the outer wall of the push rod, and a group of limiting slots are opened on the inner wall of the shell corresponding to the position of a group of limiting fins, and the limiting fins are slidably connected inside the corresponding limiting slots;

[0008] A contraction cavity is also provided inside the push rod, and a limiting pile is slidably connected inside the contraction cavity. The bottom of the limiting pile and the bottom of the inner wall of the contraction cavity are connected by a supporting spring. A through hole is provided on the outer shell corresponding to the position of the limiting pile, and the top of the limiting pile extends to the inside of the through hole.

[0009] Furthermore, a ring is sleeved on the outside of the cartridge, and a group of plug posts are fixedly connected to the bottom of the ring, the bottom ends of the plug posts extend to the inside of the corresponding through holes, and the bottom ends of the plug posts are in contact with the top ends of the corresponding limit piles.

[0010] Furthermore, a group of ears are fixedly connected to the top of the ring corresponding to a group of the pin positions, and a micro-electric cylinder is set on the top of each group of ears. The mounting part of the top of the micro-electric cylinder is fixed to the outer wall of the cartridge by screws, and the end of the telescopic rod at the bottom of the micro-electric cylinder is rotatably connected to the corresponding ear through a rivet.

[0011] Furthermore, a push plate is slidably connected to the inside of the cartridge, and the top of the push plate and the bottom of the upper cover plate are connected in three phases by a supporting spring. A group of levers are also fixedly welded on the outer edge of the push plate, and a group of travel grooves are opened on the cartridge corresponding to the position of the lever. The end of the lever extends to the outside of the cartridge through the corresponding travel groove. Several fire extinguishing balls are filled between the push plate and the guide funnel inside the cartridge. One of the fire extinguishing balls at the top contacts the bottom of the push plate, and one of the fire extinguishing balls at the bottom contacts the top of the pulley body of the two contact pulleys. The outer wall diameter of the fire extinguishing ball is equal to the inner wall diameter of the bottom opening of the guide funnel.

[0012] Furthermore, a bullet-dropping hole is provided on one side of the outer wall of the cartridge, and a sealing plate is fixedly installed on the bullet-dropping hole by means of a plurality of quick-release bolts.

[0013] Furthermore, several mounting ends are fixedly welded on the upper cover plate, a multi-rotor fire-fighting drone body is provided on the upper cover plate, and a mounting plate is fixedly installed on the bottom of the multi-rotor fire-fighting drone body, and the mounting plate and several mounting ends are fixedly installed by bolts.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) This scheme adopts a fire extinguishing ball loading structure in the form of a cartridge. When loading, it is only necessary to drop the fire extinguishing balls one by one into the cartridge, without having to use the corresponding mounting buckle part or the lock part to mount the fire extinguishing balls one by one, which greatly improves the loading efficiency of the fire extinguishing balls. At the same time, since the fire extinguishing ball is directly loaded into the cartridge, there is no need to set other auxiliary structures on the outer surface of the fire extinguishing ball shell, which is conducive to the regular production and manufacturing of the outer surface of the fire extinguishing ball shell and reduces the manufacturing complexity;

[0016] (2) This solution, for the unlocking of the bottom fire extinguishing ball when it is thrown, only needs to control the ring to move down and reset once, and then the connection between the push rod and the shell can be unlocked. At this time, as the bottom fire extinguishing ball moves down, the contact pulleys and push rods of the two spring plunger mechanisms can be pushed in the opposite direction to avoid the throwing channel, and a bombing can be successfully completed. When the next bottom fire extinguishing ball is blocked in time, the top surface of the fire extinguishing ball gradually narrows during the process of the previous fire extinguishing ball being thrown out, and the pair of push rods and contact pulleys of the supporting spring are pushed out and reset in the opposite direction, so that the contact pulleys and push rods of the two spring plunger mechanisms can be reset, and the next bottom fire extinguishing ball can be blocked from being accidentally pushed out. The whole process is coherent and reasonable, and there is no need to set up an additional electric control blocking mechanism, which improves the convenience of production and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the installation structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the mounting plate structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 4 Schematic diagram of the internal cross-sectional structure of the cartridge of the present invention;

[0021] Figure 5 For the present invention Figure 4Schematic diagram of the structure of the middle part of the area;

[0022] Figure 6 Schematic diagram of the cross-sectional structure of the push rod of the present invention;

[0023] Figure 7 It is a schematic diagram of the split structure of the present invention;

[0024] Figure 8 It is a schematic structural diagram of the spring plunger mechanism of the present invention;

[0025] Figure 9 It is a schematic diagram of the ring structure of the present invention.

[0026] Description of the numbers in the figure:

[0027] 1. Cartridge; 101. Insertion jack; 102. Travel slot; 103. Drop hole; 104. Sealing plate; 2. Upper cover; 201. Mounting end; 3. Guide funnel;

[0028] 4. Spring plunger mechanism; 5. Housing; 501. Limiting slideway; 502. Through hole; 6. Push rod; 601. Limiting fin; 602. Contraction chamber; 603. Limiting pile; 604. Support spring 2; 7. Mounting nut; 8. Support spring 1; 9. Contact pulley;

[0029] 10. Ring; 1001. Plug; 1002. Ear; 11. Micro cylinder; 12. Push plate; 1201. Lever; 13. Support spring 3; 14. Fire extinguisher; 15. Multi-rotor firefighting drone body; 1501. Mounting plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-9 A fire-extinguishing bomb throwing device for a multi-rotor firefighting drone includes a cartridge 1. An upper cover plate 2 is fixedly mounted on the top of the cartridge 1 by bolts. A guide funnel 3 is fixedly mounted on the bottom of the inner wall of the cartridge 1 by bolts. Plug holes 101 are formed on both sides of the cartridge 1 at the bottom of the guide funnel 3. Spring plunger mechanisms 4 with the same structure are inserted into the two plug holes 101.

[0032] The spring plunger mechanism 4 includes a shell 5 inserted into the corresponding socket 101, a push rod 6 is slidably connected to the inside of the shell 5, a group of mounting nuts 7 are threadedly connected to the shell 5 at the connection of the socket 101, a support spring 1 8 is sleeved inside the shell 5, and the two ends of the support spring 1 8 are respectively in contact with one side of the inner wall of the shell 5 and one end of the push rod 6, and the other end of the push rod 6 located on the outside of the shell 5 is fixedly mounted with a contact pulley 9, a group of limiting fins 601 are fixedly welded to the outer wall of the push rod 6, and a group of limiting grooves 501 are opened on the inner wall of the shell 5 corresponding to the position of the group of limiting fins 601, and the limiting fins 601 are slidably connected inside the corresponding limiting grooves 501;

[0033] A contraction cavity 602 is further defined within the push rod 6, and a limit post 603 is slidably connected to the interior of the contraction cavity 602. The bottom of the limit post 603 is connected to the bottom of the inner wall of the contraction cavity 602 via a second support spring 604. A through hole 502 is defined on the housing 5 at the position corresponding to the limit post 603, and the top of the limit post 603 extends into the interior of the through hole 502.

[0034] The outer side of the cartridge 1 is sleeved with a ring 10, and a group of plug posts 1001 are fixedly connected to the bottom of the ring 10. The bottom ends of the plug posts 1001 extend into the corresponding through holes 502 and contact the top ends of the corresponding limit posts 603.

[0035] A set of lugs 1002 are fixedly connected to the top of the ring 10 at the position of a set of pins 1001. A micro-electric cylinder 11 is installed on the top of each set of lugs 1002. The mounting portion at the top of the micro-electric cylinder 11 is fixed to the outer wall of the cartridge 1 by screws. The end of the telescopic rod at the bottom of the micro-electric cylinder 11 is rotatably connected to the corresponding lug 1002 by rivets.

[0036] A push plate 12 is slidably connected to the inside of the cartridge 1. The top of the push plate 12 is connected to the bottom of the upper cover plate 2 by a support spring 13. A group of levers 1201 are fixedly welded to the outer edge of the push plate 12. A group of travel grooves 102 are opened on the cartridge 1 at the position of the corresponding group of levers 1201. The end of the lever 1201 extends to the outside of the cartridge 1 through the corresponding travel grooves 102. A number of fire extinguishing balls 14 are filled between the push plate 12 and the guide funnel 3 inside the cartridge 1. One of the fire extinguishing balls 14 at the top contacts the bottom of the push plate 12, and one of the fire extinguishing balls 14 at the bottom contacts the top of the pulley body of the two contact pulleys 9. The outer wall diameter of the fire extinguishing ball 14 is equal to the inner wall diameter of the bottom opening of the guide funnel 3.

[0037] A bullet hole 103 is also provided on one side of the outer wall of the cartridge 1, and a sealing plate 104 is fixed to the bullet hole 103 by a plurality of quick-release bolts;

[0038] Several mounting ends 201 are fixedly welded on the upper cover 2, a multi-rotor fire-fighting drone body 15 is provided on the upper cover 2, and a mounting plate 1501 is fixedly installed on the bottom of the multi-rotor fire-fighting drone body 15, and the mounting plate 1501 is fixed to the several mounting ends 201 by bolts.

[0039] The operating principle of the fire extinguishing bomb throwing device of this multi-rotor fire-fighting drone is:

[0040] First, the push plate 12 is lifted upward along the direction of the stroke slot 102 to the top of the bullet-dropping hole 103 by a set of levers 1201. Then, the sealing plate 104 is removed and several fire-extinguishing balls 14 are dropped into the cartridge 1 one by one through the bullet-dropping hole 103. Then, the sealing plate 104 is reinstalled and the lifting of the set of levers 1201 is released. At this time, the push plate 12 is supported by the support spring 3 13, and the several fire-extinguishing balls 14 are squeezed downward at the same time, thereby accumulating force for the later throwing of the fire-extinguishing balls 14.

[0041] When dropping the bomb, the multi-rotor firefighting drone body 15 first flies over the fire source carrying the device, and then controls a group of micro-electric cylinders 11 to start simultaneously, pushing the ring 10 downward once and immediately resetting it. At this time, a group of plugs 1001 pass through the through holes 502 on the two spring plunger mechanisms 4, pushing the limit piles 603 on the two spring plunger mechanisms 4 downward and retracting them into the contraction cavity 602. The top end of the limit pile 603 is disconnected from the inside of the through hole 502. At this time, the connection between the push rod 6 and the housing 5 loses its limit structure, and the push rod 6 can slide freely inside the housing 5.

[0042] At this time, since several fire extinguishing balls 14 are in the throwing and accumulating state, the fire extinguishing ball 14 at the bottom moves downward through the opening at the bottom of the guide funnel 3, and pushes the contact pulleys 9 of the two spring plunger mechanisms 4 to both sides, opening the throwing channel. At this time, the fire extinguishing ball 14 at the bottom can be thrown out smoothly through the opening at the bottom of the cartridge 1;

[0043] As the fire extinguishing ball 14 at the bottom is gradually thrown out, the contact pulleys 9 of the two spring plunger mechanisms 4 also follow the external shape of the top surface of the fire extinguishing ball 14 at the bottom and the reverse rebound support of the support spring 1 8 to gradually approach and reset, and until the limit pile 603 returns to the position of the through hole 502 and is inserted into the through hole 502, the movement of the push rod 6 and the contact pulley 9 is locked and limited, thereby preventing the next fire extinguishing ball 14 at the bottom from automatically popping out, achieving the effect that the ring 10 moves up and down once and only one fire extinguishing ball 14 automatically pops out and is thrown, and so on. The number of fire extinguishing balls 14 inside the cartridge 1 continues to decrease, and the support spring 3 13 pushes the push plate 12 to squeeze downward continuously until all the fire extinguishing balls 14 inside the cartridge 1 are thrown.

[0044] Example 2: In view of the above example 1, further description is given, see Figure 4-Figure 9 The setting of the guide funnel 3 plays a role in guiding the falling fire extinguishing ball 14 so that it can be pushed out at the center of the cartridge 1. The setting of the support spring 8 facilitates the resetting of the push rod 6 and the contact pulley 9. The setting of a group of limiting fins 601 and a group of limiting slide grooves 501 facilitates the directional reciprocating sliding of the push rod 6 inside the shell 5, thereby preventing the limiting pile 603 from being unable to be smoothly inserted into the through hole 502 after being reset. The contraction cavity 602 provides a avoidance space for the retraction of the limiting pile 603, and the inner wall height of the contraction cavity 602 is greater than the height of the limiting pile 603. A group of plugs 1001 fixedly connected to the bottom of the ring 10 facilitates the pushing of the limiting pile 603 at the corresponding position into the contraction cavity 602 through the through hole 502, so that the connection between the push rod 6 and the shell 5 loses its limit.

[0045] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A fire-extinguishing bomb throwing device for a multi-rotor fire-fighting drone, comprising a cartridge (1), characterized in that: An upper cover plate (2) is fixedly mounted on the top of the cartridge (1) by means of bolts, a guide funnel (3) is fixedly mounted on the bottom of the inner wall of the cartridge (1) by means of bolts, and insertion holes (101) are provided on both sides of the cartridge (1) at the bottom of the guide funnel (3), and spring plunger mechanisms (4) of the same structure are inserted into the two insertion holes (101); The spring plunger mechanism (4) includes a shell (5) inserted into the corresponding socket (101), a push rod (6) is slidably connected inside the shell (5), a group of mounting nuts (7) are threadedly connected on the shell (5) at the connection of the socket (101), a support spring (8) is sleeved inside the shell (5), the two ends of the support spring (8) are respectively in contact with one side of the inner wall of the shell (5) and one end of the push rod (6), a contact pulley (9) is fixedly installed on the other end of the push rod (6) located outside the shell (5), a group of limiting fins (601) are fixedly welded to the outer wall of the push rod (6), a group of limiting slots (501) are opened on the inner wall of the shell (5) corresponding to the position of the group of limiting fins (601), and the limiting fins (601) are slidably connected inside the corresponding limiting slots (501); A contraction cavity (602) is further provided inside the push rod (6), and a limiting pile (603) is slidably connected inside the contraction cavity (602), and the bottom of the limiting pile (603) and the bottom of the inner wall of the contraction cavity (602) are connected via a second supporting spring (604), and a through hole (502) is provided on the housing (5) at the position corresponding to the limiting pile (603), and the top of the limiting pile (603) extends to the inside of the through hole (502); The outer side of the cartridge (1) is sleeved with a ring (10), and a group of plug posts (1001) are fixedly connected to the bottom of the ring (10), and the bottom ends of the plug posts (1001) extend to the inside of the corresponding through holes (502), and the bottom ends of the plug posts (1001) are in contact with the top ends of the corresponding limit piles (603); A group of ear pieces (1002) are fixedly connected to the top of the ring (10) at the position of a group of the plug posts (1001), and a micro-electric cylinder (11) is provided on the top of each group of the ear pieces (1002). The mounting portion of the top of the micro-electric cylinder (11) is fixedly mounted on the outer wall of the cartridge (1) by screws, and the end of the telescopic rod at the bottom of the micro-electric cylinder (11) is rotatably connected to the corresponding ear piece (1002) by a rivet. The cartridge (1) is slidably connected to a push plate (12) inside, and the top of the push plate (12) is connected to the bottom of the upper cover (2) via a supporting spring (13). A group of shifting rods (1201) are fixedly welded on the outer edge of the push plate (12), and a group of travel grooves (102) are opened on the cartridge (1) at the position of a group of shifting rods (1201). The end of the shifting rod (1201) extends to the cartridge through the corresponding travel groove (102). (1) On the outside, a plurality of fire extinguishing balls (14) are filled between the push plate (12) and the guide funnel (3) located inside the cartridge (1), one of the fire extinguishing balls (14) located at the top contacts the bottom of the push plate (12), and one of the fire extinguishing balls (14) located at the bottom contacts the top of the pulley bodies of the two contact pulleys (9), and the outer wall diameter of the fire extinguishing ball (14) is equal to the inner wall diameter of the bottom opening of the guide funnel (3); A bullet-throwing hole (103) is also provided on one side of the outer wall of the cartridge (1), and a sealing plate (104) is fixedly mounted on the bullet-throwing hole (103) via a plurality of quick-release bolts.

2. The fire extinguishing bomb throwing device of a multi-rotor firefighting drone according to claim 1, characterized in that: A plurality of mounting ends (201) are fixedly welded on the upper cover plate (2), a multi-rotor fire-fighting drone body (15) is provided on the upper cover plate (2), and a mounting plate (1501) is fixedly mounted on the bottom of the multi-rotor fire-fighting drone body (15), and the mounting plate (1501) and the plurality of mounting ends (201) are fixedly mounted via bolts.

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