Fire extinguishing unmanned aerial vehicle bullet changing method and device

Abstract

The device comprises the unmanned aerial vehicle and a water tank, a fixing column is fixedly connected to the bottom of the unmanned aerial vehicle, a sleeve is arranged at the top of the water tank, four spiral guide grooves are formed in the side face of the sleeve, a cover plate is arranged in the sleeve, and four protrusions are fixedly connected to the side face of the cover plate; the top of the sleeve is fixedly connected with two symmetrically-distributed second fixing blocks, one end of each second fixing block is provided with a second baffle, the outer side of each second baffle is fixedly connected with a rotating ring, and the unmanned aerial vehicle is pressed downwards to drive the fixing columns and the sleeve to be clamped. The water tank and the unmanned aerial vehicle are automatically connected, operation is simple, the water tank is separated from the unmanned aerial vehicle by rotating the rotating ring, rapid bullet changing of the unmanned aerial vehicle is achieved, and conciseness and high efficiency are achieved.

Description

Technical Field

[0001] The present invention relates to the field of firefighting unmanned aerial vehicles, and in particular to a method and a device for replacing ammunition of a firefighting unmanned aerial vehicle. Background Art

[0002] Firefighting drones play a vital role in firefighting. Firefighting drones can go deep into high-temperature fire areas or high-rise building fire areas that rescue personnel cannot reach, which can not only greatly improve work efficiency but also reduce casualties among firefighters.

[0003] However, the existing firefighting drones need manual operation to change bullets, and in order to install them firmly, their installation methods are relatively complicated, which may easily lead to missing the best fire-fighting time, which is not conducive to the rapid advancement of the fire-fighting process. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is to develop a method and device for quickly changing ammunition for fire-fighting drones, which can greatly reduce the time for changing ammunition and improve the efficiency of firefighting.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a method and device for changing ammunition for a fire-fighting drone, comprising a drone and a water tank, wherein a fixing column is fixedly connected to the bottom of the drone, a sleeve is arranged on the top of the water tank, and four spiral guide grooves are opened on the side of the sleeve, a cover plate is arranged inside the sleeve, and four protrusions are fixedly connected to the side of the cover plate, and the protrusions are adapted to the guide grooves, and the protrusions are slidably connected inside the guide grooves, and two symmetrically distributed second fixed blocks are fixedly connected to the top of the sleeve, and a second baffle is arranged at one end of the second fixed block, and a swivel is fixedly connected to the outer side of the second baffle.

[0008] As an improvement of the present invention, a lower support cover is fixedly connected to the top of the water tank, and a middle support cover is arranged on the top of the lower support cover, a first annular groove is provided on the top of the lower support cover and a bottom of the middle support cover, and a plurality of first balls are rollingly connected inside the first annular groove, and an upper support cover is arranged on the top of the middle support cover, a second annular groove is provided on the bottom of the upper support cover and a top of the middle support cover, and a plurality of second balls are rollingly connected inside the second annular groove.

[0009] As an improvement of the present invention, the sizes of the middle cover and the lower cover are matched, the outer diameter of the upper cover is larger than the outer diameters of the middle cover and the lower cover, and the bottom of the upper cover is located on the outside of the middle cover and is fixedly connected with four connecting plates, and the connecting plates are arc-shaped that are matched with the upper cover, the bottoms of the four connecting plates are fixedly connected to the top of the water tank, and the bottom of the sleeve is fixedly connected to the inner side of the top of the middle cover.

[0010] As an improvement of the present invention, the outer diameter of the cover plate is matched with the inner diameter of the sleeve, and the cover plate is movably connected to the inner side of the sleeve, a first groove is opened at the bottom of the cover plate, and a first spring is fixedly connected to the bottom of the cover plate inside the first groove, the bottom of the first spring is fixedly connected to the top of the water tank, and the first spring is always in a compressed state.

[0011] As an improvement of the present invention, a second groove is provided on the top of the cover plate, and the second groove runs through the cover plate, a first baffle is provided on the top of the cover plate, and the diameter of the first baffle is smaller than the diameter of the cover plate, a guide rod is fixedly connected to the bottom of the first baffle, the cross-sectional profile of the guide rod is located inside the first baffle, and the bottom of the guide rod is fixedly connected to the top of the water tank through the second groove, and the cross-sectional shape of the guide rod is adapted to the second groove.

[0012] As an improvement of the present invention, a circular groove is provided at the bottom of the fixed column, and the size of the circular groove is adapted to the first baffle, the outer diameter of the fixed column is adapted to the inner diameter of the sleeve, and the height of the fixed column is adapted to the guide rod, and two first fixed blocks distributed at equal intervals are fixedly connected to the outer side of the fixed column, and the first fixed blocks are in an arc shape adapted to the fixed column.

[0013] As an improvement of the present invention, the second fixed block is L-shaped, a third groove is opened inside the second fixed block, and a second spring is fixedly connected to one end of the inner side of the third groove, and a sliding rod is fixedly connected to the other end of the second spring, and the sliding rod is adapted to the size of the third groove. When the second spring is in a natural state, the sliding rod can be placed inside the third groove, and the sliding rod is in an arc shape adapted to the fixed column.

[0014] As an improvement of the present invention, four equally spaced positioning grooves are provided at the bottom of the water tank, a base is provided at the bottom of the water tank, and a positioning rod is fixedly connected to the top of the base relative to the positioning groove, and the positioning rod is adapted to the positioning groove.

[0015] As an improvement of the present invention, using the fire-fighting drone ammunition replacement device described in any one of claims 1 to 8, the steps of the method for using the fire-fighting drone ammunition replacement device are as follows: S1. When the UAV needs to change ammunition, it stops above the water tank and aligns the fixing column with the sleeve; S2, the drone presses the fixing column into the sleeve and squeezes the cover plate, thereby driving the protrusion to press the sleeve downward and rotate it; S3. The sleeve rotates to drive the second fixing block to rotate and engage with the first fixing block, thereby locking the water tank and the drone.

[0016] The beneficial effects of the present invention are: the fixing column and the sleeve are driven to engage by pressing down the drone, so as to realize automatic connection between the water tank and the drone, which is simple to operate, and the water tank is separated from the drone by rotating the swivel, so as to realize rapid ammunition replacement of the drone, which is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 A schematic diagram of the structure of a fire-fighting drone ammunition replacement device according to an embodiment of the present invention; Figure 2 A schematic diagram of the bottom structure of a UAV in a fire-fighting UAV ammunition replacement device according to an embodiment of the present invention; Figure 3 A schematic diagram of the top structure of a water tank of a fire-fighting drone ammunition replacement device according to an embodiment of the present invention; Figure 4 A schematic diagram of the exploded structure of each cover of a fire-fighting drone ammunition replacement device according to an embodiment of the present invention; Figure 5 A schematic diagram of the exploded structure of a sleeve in a fire-fighting drone ammunition replacement device according to an embodiment of the present invention; Figure 6 A schematic diagram of the internal structure of the second fixed block in the ammunition replacement device for a fire-fighting drone according to an embodiment of the present invention.

[0018] In the figure: 1. UAV; 2. water tank; 3. base; 4. positioning rod; 5. positioning groove; 6. sleeve; 7. connecting plate; 8. upper cover; 9. fixing column; 10. first fixing block; 11. circular groove; 12. first baffle plate; 13. protrusion; 14. guide groove; 15. swivel; 16. second fixing block; 17. sliding rod; 18. second baffle plate; 19. lower cover; 20. first ball bearing; 21. middle cover; 22. second ball bearing; 23. first annular groove; 24. second annular groove; 25. cover plate; 26. first groove; 27. first spring; 28. guide rod; 29. ​​second groove; 30. second spring; 31. third groove. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Example

[0020] The present embodiment provides a method and device for replacing ammunition for a fire-fighting drone, comprising a drone 1 and a water tank 2, wherein a fixing column 9 is fixedly connected to the bottom of the drone 1, a sleeve 6 is arranged on the top of the water tank 2, and four spiral guide grooves 14 are opened on the side of the sleeve 6, a cover plate 25 is arranged inside the sleeve 6, and four protrusions 13 are fixedly connected to the side of the cover plate 25, and the protrusions 13 are adapted to the guide grooves 14, and the protrusions 13 are slidably connected inside the guide grooves 14, and two symmetrically distributed second fixing blocks 16 are fixedly connected to the top of the sleeve 6, and a second baffle 18 is arranged at one end of the second fixing block 16, and a swivel 15 is fixedly connected to the outer side of the second baffle 18.

[0021] Reference Figure 3 A lower bearing cover 19 is fixedly connected to the top of the water tank 2, and a middle bearing cover 21 is arranged on the top of the lower bearing cover 19, a first annular groove 23 is provided on the top of the lower bearing cover 19 and a bottom of the middle bearing cover 21, and a plurality of first balls 20 are rollingly connected inside the first annular groove 23, an upper bearing cover 8 is arranged on the top of the middle bearing cover 21, a second annular groove 24 is provided on the bottom of the upper bearing cover 8 and a top of the middle bearing cover 21, and a plurality of second balls 22 are rollingly connected inside the second annular groove 24, and the relative rolling between the sleeve 6 and the water tank 2 is realized by the rolling between each bearing cover and the balls.

[0022] Reference Figure 4 The sizes of the middle cover 21 and the lower cover 19 are matched, the outer diameter of the upper cover 8 is larger than the outer diameters of the middle cover 21 and the lower cover 19, and the bottom of the upper cover 8 is located on the outside of the middle cover 21 and is fixedly connected with four connecting plates 7, and the connecting plates 7 are arc-shaped and matched with the upper cover 8, the bottoms of the four connecting plates 7 are fixedly connected to the top of the water tank 2, and the bottom of the sleeve 6 is fixedly connected to the inner side of the top of the middle cover 21.

[0023] Reference Figure 3 , 5 The outer diameter of the cover plate 25 is matched with the inner diameter of the sleeve 6, and the cover plate 25 is movably connected to the inner side of the sleeve 6. A first groove 26 is provided at the bottom of the cover plate 25, and a first spring 27 is fixedly connected to the bottom of the cover plate 25 located inside the first groove 26 to prevent the first spring 27 from being misplaced. The bottom of the first spring 27 is fixedly connected to the top of the water tank 2, and the first spring 27 is always in a compressed state. The first spring 27 can be used to separate the fixed column 9 and the sleeve 6.

[0024] Reference Figure 3 ,5 A second groove 29 is provided on the top of the cover plate 25, and the second groove 29 runs through the cover plate 25. A first baffle 12 is provided on the top of the cover plate 25 to prevent the cover plate 25 from detaching, and the diameter of the first baffle 12 is smaller than the diameter of the cover plate 25. A guide rod 28 is fixedly connected to the bottom of the first baffle 12 for fixing the direction of the cover plate 25. The cross-sectional profile of the guide rod 28 is located inside the first baffle 12, and the bottom of the guide rod 28 is fixedly connected to the top of the water tank 2 through the second groove 29, and the cross-sectional shape of the guide rod 28 is adapted to the second groove 29. Example

[0025] The embodiment is based on the previous embodiment, and is different from the previous embodiment in that: Combination Figure 2 A circular groove 11 is provided at the bottom of the fixed column 9, and the size of the circular groove 11 is adapted to the first baffle 12, the outer diameter of the fixed column 9 is adapted to the inner diameter of the sleeve 6, and the height of the fixed column 9 is adapted to the guide rod 28, and two first fixed blocks 10 distributed at equal intervals are fixedly connected to the outer side of the fixed column 9, and the first fixed block 10 is in an arc shape adapted to the fixed column 9, and the fixed column 9 makes the top of the first fixed block 10 move below the second baffle 18.

[0026] Combination Figure 6 The second fixed block 16 is L-shaped, and a third groove 31 is opened inside the second fixed block 16, and a second spring 30 is fixedly connected to one end of the inner side of the third groove 31, and the other end of the second spring 30 is fixedly connected to the sliding rod 17, and the sliding rod 17 is adapted to the size of the third groove 31. When the second spring 30 is in a natural state, the sliding rod 17 can be placed inside the third groove 31, and the sliding rod 17 is in an arc shape adapted to the fixed column 9. The second baffle 18 and the sliding rod 17 are clamped into the first fixed block 10 under the action of the second spring 30.

[0027] Reference Figure 1 Four equally spaced positioning grooves 5 are provided at the bottom of the water tank 2, a base 3 is provided at the bottom of the water tank 2, and a positioning rod 4 is fixedly connected to the top of the base 3 relative to the positioning groove 5, and the positioning rod 4 is adapted to the positioning groove 5. The positioning groove 5 cooperates with the positioning rod 4 to make the direction of the water tank 2 in a suitable position, which is convenient for the drone 1 to change ammunition. Example

[0028] The embodiment is based on the previous embodiment, and is different from the previous embodiment in that: Reference Figures 1 to 6 , using the fire-fighting drone ammunition replacement device of any one of claims 1 to 8, the steps of the method of using the fire-fighting drone ammunition replacement device are as follows: S1. When the drone 1 needs to change ammunition, it stops above the water tank 2 and aligns the fixing column 9 with the sleeve 6; S2, the drone 1 presses the fixing column 9 into the sleeve 6 and squeezes the cover plate 25, thereby driving the protrusion 13 to press down the sleeve 6 and rotate it; S3, the sleeve 6 rotates to drive the second fixing block 16 to rotate and clamp into the first fixing block 10, so that the water tank 2 and the drone 1 are clamped.

[0029] In this embodiment, when in use, the positioning groove 5 at the bottom of the water tank 2 is aligned with the positioning rod 4, and the fixing column 9 is aligned with the sleeve 6 by pressing down the drone 1, and the fixing column 9 is against the cover plate 25 and moves it downward, and the protrusion 13 fixedly connected to the cover plate 25 drives the sleeve 6 to rotate under the action of the guide groove 14, and the middle bearing cover 21 fixedly connected to the bottom of the sleeve 6 rotates under the action of the first ball 20 and the second ball 22, and the second fixing block at the top of the sleeve 6 rotates, and the second baffle 18 contacts the first fixing block 10 and cannot move. At this time, the second spring 30 is compressed The fixing column 9 continues to move downward so that the top of the first fixing block 10 moves below the second baffle 18. At this time, the second baffle 18 and the slide bar 17 are inserted into the first fixing block 10 under the action of the second spring 30, so that the water tank 2 and the drone are self-locked. When disassembly is required, the operator holds the sleeve 6 with one hand and holds the swivel 15 with the other hand and rotates it to separate the second baffle 18 fixedly connected to the swivel 15 from the first fixing block 10. The sleeve 6 and the fixing column 9 are separated under the action of the first spring 27, and the separation of the water tank 2 and the drone 1 is completed.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fire-fighting drone ammunition replacement device, characterized in that: The invention comprises an unmanned aerial vehicle (1) and a water tank (2), wherein a fixing column (9) is fixedly connected to the bottom of the unmanned aerial vehicle (1), a sleeve (6) is arranged on the top of the water tank (2), and four spiral guide grooves (14) are opened on the side of the sleeve (6), a cover plate (25) is arranged inside the sleeve (6), and four protrusions (13) are fixedly connected to the side of the cover plate (25), and the protrusions (13) are matched with the guide grooves (14), and the protrusions (13) are slidably connected inside the guide grooves (14), and two symmetrically distributed second fixing blocks (16) are fixedly connected to the top of the sleeve (6), and a second baffle (18) is arranged at one end of the second fixing block (16), and a swivel (15) is fixedly connected to the outer side of the second baffle (18).

2. The fire-fighting drone ammunition replacement device according to claim 1 is characterized in that: The top of the water tank (2) is fixedly connected to a lower support cover (19), and a middle support cover (21) is arranged on the top of the lower support cover (19), the top of the lower support cover (19) and the bottom of the middle support cover (21) are both provided with a first annular groove (23), and a plurality of first balls (20) are rollingly connected inside the first annular groove (23), and the top of the middle support cover (21) is provided with an upper support cover (8), the bottom of the upper support cover (8) and the top of the middle support cover (21) are both provided with a second annular groove (24), and a plurality of second balls (22) are rollingly connected inside the second annular groove (24).

3. The fire-fighting drone ammunition replacement device according to claim 2 is characterized in that: The sizes of the middle cover (21) and the lower cover (19) are matched, the outer diameter of the upper cover (8) is larger than the outer diameters of the middle cover (21) and the lower cover (19), and the bottom of the upper cover (8) is located on the outside of the middle cover (21) and is fixedly connected to four connecting plates (7), and the connecting plates (7) are in an arc shape that matches the upper cover (8), the bottoms of the four connecting plates (7) are fixedly connected to the top of the water tank (2), and the bottom of the sleeve (6) is fixedly connected to the inner side of the top of the middle cover (21).

4. The fire-fighting drone ammunition replacement device according to claim 3 is characterized in that: The outer diameter of the cover plate (25) is matched to the inner diameter of the sleeve (6), and the cover plate (25) is movably connected to the inner side of the sleeve (6). A first groove (26) is provided at the bottom of the cover plate (25), and a first spring (27) is fixedly connected to the bottom of the cover plate (25) located inside the first groove (26). The bottom of the first spring (27) is fixedly connected to the top of the water tank (2), and the first spring (27) is always in a compressed state.

5. The fire-fighting drone ammunition replacement device according to claim 4 is characterized in that: The top of the cover plate (25) is provided with a second groove (29), and the second groove (29) penetrates the cover plate (25); the top of the cover plate (25) is provided with a first baffle plate (12), and the diameter of the first baffle plate (12) is smaller than the diameter of the cover plate (25); the bottom of the first baffle plate (12) is fixedly connected to a guide rod (28), the cross-sectional profile of the guide rod (28) is located inside the first baffle plate (12), and the bottom of the guide rod (28) is fixedly connected to the top of the water tank (2) through the second groove (29), and the cross-sectional shape of the guide rod (28) is compatible with the second groove (29).

6. The fire-fighting drone ammunition replacement device according to claim 5 is characterized in that: A circular groove (11) is formed at the bottom of the fixing column (9), and the size of the circular groove (11) is matched with the size of the first baffle (12). The outer diameter of the fixing column (9) is matched with the inner diameter of the sleeve (6), and the height of the fixing column (9) is matched with the guide rod (28). Two first fixing blocks (10) are fixedly connected to the outer side of the fixing column (9) and are distributed at equal intervals. The first fixing blocks (10) are in an arc shape that is matched with the fixing column (9).

7. The fire-fighting drone ammunition replacement device according to claim 6 is characterized in that: The second fixing block (16) is L-shaped, a third groove (31) is provided inside the second fixing block (16), and a second spring (30) is fixedly connected to one end of the inner side of the third groove (31), and a sliding rod (17) is fixedly connected to the other end of the second spring (30), and the sliding rod (17) is matched in size to the third groove (31), and when the second spring (30) is in a natural state, the sliding rod (17) can be located inside the third groove (31), and the sliding rod (17) is in an arc shape matched with the fixing column (9).

8. The fire-fighting drone ammunition replacement device according to claim 1 is characterized in that: The bottom of the water tank (2) is provided with four positioning grooves (5) distributed at equal intervals, the bottom of the water tank (2) is provided with a base (3), and a positioning rod (4) is fixedly connected to the top of the base (3) at a position relative to the positioning groove (5), and the positioning rod (4) is adapted to the positioning groove (5).

9. A method for using a fire-fighting drone ammunition replacement device, characterized in that: Using the fire-fighting drone ammunition replacement device described in any one of claims 1 to 8, the steps of the method for using the fire-fighting drone ammunition replacement device are as follows: S1. When the drone (1) needs to change ammunition, it is parked above the water tank (2) and the fixing column (9) is aligned with the sleeve (6); S2, the drone (1) presses the fixing column (9) into the interior of the sleeve (6) and squeezes the cover plate (25), thereby driving the protrusion (13) to press down the sleeve (6) and rotate it; S3. The sleeve (6) rotates to drive the second fixing block (16) to rotate and engage with the first fixing block (10), thereby causing the water tank (2) and the drone (1) to engage with each other.

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