Fire extinguishing bomb throwing frame of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicle fire extinguishing, in particular to an unmanned aerial vehicle fire extinguishing bomb throwing frame. Comprising a mounting frame body, a servo motor, a speed reducer and an electromagnetic lock catch are mounted in the mounting frame body, a fire extinguishing bomb bin, a guide rod, a first spiral spring, a clamping plate and a first ball are arranged below the mounting frame body, and the electromagnetic lock catch can lock the top of a fire extinguishing bomb body in a releasable mode; a second spiral spring and a silicone grease damping rod are arranged at the position, close to the fire extinguishing bomb body, below the mounting frame body in the circumferential direction, and a second ball is connected to the lower portion of the silicone grease damping rod and the lower portion of the second spiral spring. When the unmanned aerial vehicle lifts off and needs to put the fire extinguishing bomb body, the servo motor drives the electromagnetic lock catch and the fire extinguishing bomb body to rotate through the speed reducer, the first spiral spring, the second spiral spring and the silicone grease damping rod absorb vibration generated when the fire extinguishing bomb body rotates, and the fire extinguishing bomb body rotates to descend; the influence of crosswind on the fire extinguishing bomb body during falling is effectively reduced through rotation of the fire extinguishing bomb body, and the throwing precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of drone firefighting technology, specifically a drone fire extinguishing bomb launcher. Background Technology

[0002] The drone fire extinguishing bomb launcher is a key component for achieving efficient fire extinguishing in a fire-fighting drone system. Existing drone launchers typically launch fire extinguishing bombs from high altitudes, and these bombs are generally cylindrical or spherical. During the descent of the fire extinguishing bombs, crosswinds can interfere with the accuracy of the launch, thus affecting the accuracy of the fire extinguishing and increasing fire extinguishing costs. Summary of the Invention

[0003] To address the above problems, the purpose of this utility model is to provide a drone fire extinguishing bomb launcher, which solves the problem that existing fire extinguishing bombs are generally cylindrical or spherical, and that crosswinds interfere with the accuracy of the launch during the descent of the fire extinguishing bombs, thereby affecting the accuracy of the fire extinguishing and increasing the fire extinguishing cost.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a drone fire extinguishing bomb dispenser, comprising a mounting frame body, with a fire extinguishing bomb compartment located below the mounting frame body; guide rods are symmetrically arranged on both sides of the fire extinguishing bomb compartment, the guide rods penetrating the side walls of the fire extinguishing bomb compartment; a clamping plate is fixedly connected to one end of the guide rod inside the fire extinguishing bomb compartment, and a helical spring is sleeved on the guide rod between the clamping plate and the side wall of the fire extinguishing bomb compartment, the helical spring providing a clamping force to the clamping plate toward the central axis of the fire extinguishing bomb compartment; at least one row of ball bearings is embedded on the inner side wall of the clamping plate. 1. A servo motor is mounted on the mounting bracket body. The output shaft of the servo motor is connected to the input end of a reducer. The output end of the reducer is connected downward to an electromagnetic latch. The electromagnetic latch is connected to a signal line through a rotary joint. The electromagnetic latch is used to releasably lock the top of the fire extinguishing bomb body located in the fire extinguishing bomb compartment. Multiple buffer components are arranged around the top of the fire extinguishing bomb compartment and around the electromagnetic latch. The buffer components include a silicone grease damping rod and a helical spring coaxially sleeved on the outside. The lower end of the silicone grease damping rod is connected to a ball bearing that contacts the top of the fire extinguishing bomb body.

[0005] As a further improvement to the above technical solution: the guide rod is symmetrically arranged about the centerline of the fire extinguishing ammunition compartment.

[0006] As a further improvement to the above technical solution: the guide rod and the helical spring are arranged with their axes coincident.

[0007] As a further improvement to the above technical solution: the inner side of the clamping plate is arranged in an arc shape.

[0008] As a further improvement to the above technical solution: the ball bearings are arranged in a double row.

[0009] As a further improvement to the above technical solution: the helical spring and the silicone grease damping rod are arranged with their axes coincident.

[0010] As a further improvement to the above technical solution: the ball bearing 2 and the mounting bracket body are connected by a helical spring 2 to form a lifting and mounting structure.

[0011] As a further improvement to the above technical solution: the number of buffer components is four, and they are evenly distributed circumferentially around the periphery of the electromagnetic latch.

[0012] The beneficial effects of this utility model are as follows: When using the drone fire extinguishing bomb launcher of this utility model, the fire extinguishing bomb body is pushed into the fire extinguishing bomb chamber from below. The fire extinguishing bomb body is connected to the electromagnetic lock. The first helical spring drives the clamping plate to automatically clamp the side of the bomb body. The second helical spring pushes the second ball to press the top of the bomb body, forming a three-way adaptive locking.

[0013] When the drone takes off and needs to drop the fire extinguishing bomb, the servo motor drives the fire extinguishing bomb to rotate. The first helical spring absorbs radial vibration, and the second top helical spring and the silicone grease damping rod form a vertical energy dissipation unit. The first and second ball bearings convert sliding friction into rolling friction. During the drop, the electromagnetic lock releases the rotating fire extinguishing bomb. The bomb maintains axial stability by relying on the gyro effect, effectively reducing the crosswind impact on the fire extinguishing bomb during its descent and ensuring the accuracy of the drop. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall main view structure.

[0015] Figure 2 This is a schematic diagram of the overall structure viewed from below.

[0016] Figure 3 This is an enlarged isometric schematic diagram of the clamping plate and guide rod.

[0017] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.

[0018] Figure 5 for Figure 1 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Mounting frame body; 11. Fire extinguishing cartridge compartment; 12. Guide rod; 13. Helical spring one; 14. Clamping plate; 15. Ball bearing one; 2. Servo motor; 21. Reducer; 22. Electromagnetic lock; 23. Signal line; 3. Fire extinguishing cartridge body; 4. Helical spring two; 41. Silicone grease damping rod; 42. Ball bearing two. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0021] like Figure 1-5 As shown, a drone fire extinguishing grenade launcher includes a mounting frame body 1, with a fire extinguishing grenade compartment 11 located below the mounting frame body 1. Guide rods 12 are symmetrically arranged on both sides of the fire extinguishing grenade compartment 11, penetrating the side walls of the fire extinguishing grenade compartment 11. A clamping plate 14 is fixedly connected to one end of the guide rod 12 inside the fire extinguishing grenade compartment 11. A helical spring 13 is sleeved on the guide rod 12 between the clamping plate 14 and the side wall of the fire extinguishing grenade compartment 11, and the helical spring 13 provides a clamping force to the clamping plate 14 towards the central axis of the fire extinguishing grenade compartment 11. At least one row of ball bearings 15 is embedded on the inner side wall of the clamping plate 14. A servo motor 2 is installed on the frame body 1. The output shaft of the servo motor 2 is connected to the input end of the reducer 21. The output end of the reducer 21 is connected downward to an electromagnetic latch 22. The electromagnetic latch 22 is connected to a signal line 23 through a rotary joint. The electromagnetic latch 22 is used to releaseably lock the top of the fire extinguishing bomb body 3 located in the fire extinguishing bomb compartment 11. Multiple buffer components are arranged around the top of the fire extinguishing bomb compartment 11 and around the electromagnetic latch 22. The buffer components include a silicone grease damping rod 41 and a helical spring 4 coaxially sleeved on the outside. The lower end of the silicone grease damping rod 41 is connected to a ball bearing 42 that contacts the top of the fire extinguishing bomb body 3.

[0022] In use, the fire extinguishing bomb body 3 is pushed into the fire extinguishing bomb compartment 11 from below. The fire extinguishing bomb body 3 connects to the electromagnetic lock 22. A first helical spring 13 pushes the clamping plate 14 to contact the fire extinguishing bomb body 3, and a second helical spring 4 pushes the second ball bearing 42 to contact the fire extinguishing bomb body 3. The arrangement of the first helical spring 13 and the second helical spring 4 allows for the adaptation of fire extinguishing bomb bodies 3 of different sizes. When the drone takes off and needs to drop the fire extinguishing bomb body 3, the servo motor 2 drives the electromagnetic lock 22 and the fire extinguishing bomb body 3 to rotate via the reducer 21. The first helical spring 13, the second helical spring 4, and the silicone grease damping rod 41 absorb the vibration of the fire extinguishing bomb body 3 during rotation. During drop, the electromagnetic lock 22 is activated, and the fire extinguishing bomb body 3 rotates and descends. The rotation of the fire extinguishing bomb body 3 effectively reduces the crosswind effect during its descent, ensuring the accuracy of the drop.

[0023] The guide rod 12 is symmetrically arranged about the centerline of the fire extinguishing ammunition chamber 11. The guide rod 12 and the helical spring 13 are aligned on the same axis. The inner side of the clamping plate 14 is arc-shaped. The ball bearings 15 are arranged in double rows. The fire extinguishing ammunition body 3 is pushed into the fire extinguishing ammunition chamber 11 from below. The fire extinguishing ammunition body 3 is connected to the electromagnetic lock 22. The helical spring 13 pushes the clamping plate 14 to contact the fire extinguishing ammunition body 3. The symmetrically arranged guide rod 12 can limit the movement of the fire extinguishing ammunition body 3. The helical spring 13, aligned on the same axis, can absorb the vibration when the fire extinguishing ammunition body 3 rotates. The arc-shaped clamping plate 14 can fit more closely to the outer side of the fire extinguishing ammunition body 3. The double-row ball bearings 15 can effectively reduce the friction when the fire extinguishing ammunition body 3 rotates. The helical spring 4 and the silicone damping rod 41 are aligned on the same axis. This alignment, combined with the helical spring 4, buffers the vibrations generated when the fire extinguishing bomb body 3 rotates, ensuring a smooth buffering effect. The ball bearing 42 and the mounting bracket body 1 are connected by the helical spring 4 to form a lifting and lowering structure. The helical spring 4 pushes the ball bearing 42 into contact with the fire extinguishing bomb body 3, allowing for a tight fit between the ball bearing 42 and fire extinguishing bomb bodies 3 of different sizes. Four buffer components are evenly distributed circumferentially around the electromagnetic latch 22. These four circumferentially arranged ball bearings 42, working with the helical spring 4 and silicone damping rod 41, reduce the vibrations of the fire extinguishing bomb body 3 during rotation from four points.

[0024] The working principle of this utility model is as follows: When using this device, the mounting bracket body 1 is installed on the underside of the drone using bolts, and the signal line 23 is connected to the drone. The fire extinguishing bomb body 3 is pushed into the fire extinguishing bomb compartment 11 from below. The fire extinguishing bomb body 3 is connected to the electromagnetic lock 22. The first helical spring 13 pushes the clamping plate 14 to contact the fire extinguishing bomb body 3, and the second helical spring 4 pushes the second ball 42 to contact the fire extinguishing bomb body 3. The arrangement of the first helical spring 13 and the second helical spring 4 can accommodate fire extinguishing bomb bodies 3 of different sizes. The drone needs to release the fire extinguishing bomb body 3 when taking off. When the servo motor 2 drives the electromagnetic latch 22 and the fire extinguishing bomb body 3 to rotate through the reducer 21, the ball bearing 15 and the ball bearing 42 reduce the friction when the fire extinguishing bomb body 3 rotates. The helical spring 13, the helical spring 4, and the silicone grease damping rod 41 absorb the vibration when the fire extinguishing bomb body 3 rotates, so that the fire extinguishing bomb body 3 rotates smoothly and reliably. When the fire extinguishing bomb body 3 is released, the electromagnetic latch 22 is opened, and the fire extinguishing bomb body 3 rotates and descends. The rotation of the fire extinguishing bomb body 3 can effectively reduce the crosswind effect when the fire extinguishing bomb body 3 falls, ensuring the accuracy of the release.

[0025] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A drone fire extinguishing bomb dispenser, comprising a mounting frame body (1), characterized in that: A fire extinguishing magazine (11) is provided below the mounting frame body (1); guide rods (12) are symmetrically arranged on both sides of the fire extinguishing magazine (11), and the guide rods (12) penetrate the side wall of the fire extinguishing magazine (11); a clamping plate (14) is fixedly connected to one end of the guide rod (12) inside the fire extinguishing magazine (11), and a helical spring (13) is sleeved on the guide rod (12) between the clamping plate (14) and the side wall of the fire extinguishing magazine (11), and the helical spring (13) is used to provide clamping force to the clamping plate (14) toward the central axis of the fire extinguishing magazine (11); at least one row of ball bearings (15) is embedded on the inner side wall of the clamping plate (14); a servo motor is installed on the mounting frame body (1). The output shaft of the servo motor (2) is connected to the input end of the reducer (21). The output end of the reducer (21) is connected downward to an electromagnetic latch (22). The electromagnetic latch (22) is connected to a signal line (23) through a rotary joint. The electromagnetic latch (22) is used to releaseably lock the top of the fire extinguishing bomb body (3) located in the fire extinguishing bomb compartment (11). Multiple buffer components are arranged around the top of the fire extinguishing bomb compartment (11) and around the electromagnetic latch (22). The buffer components include a silicone grease damping rod (41) and a helical spring (4) coaxially sleeved on it. The lower end of the silicone grease damping rod (41) is connected to a ball bearing (42) that contacts the top of the fire extinguishing bomb body (3).

2. The UAV fire extinguishing bomb dispenser according to claim 1, characterized in that: The guide rod (12) is symmetrically arranged about the centerline of the fire extinguishing magazine (11).

3. The drone fire extinguishing bomb dispenser according to claim 1, characterized in that: The guide rod (12) and the helical spring (13) are arranged with their axes coincident.

4. The UAV fire extinguishing bomb dispenser according to claim 1, characterized in that: The inner side of the clamping plate (14) is arranged in an arc shape.

5. The UAV fire extinguishing bomb dispenser according to claim 1, characterized in that: The ball bearing 1 (15) is arranged in a double row.

6. The drone fire extinguishing bomb dispenser according to claim 1, characterized in that: The helical spring (4) and the silicone grease damping rod (41) are arranged with their axes coincident.

7. The UAV fire extinguishing bomb dispenser according to claim 1, characterized in that: The ball bearing 2 (42) and the mounting frame body (1) are connected by a helical spring 2 (4) to form a lifting and mounting structure.

8. The UAV fire extinguishing bomb dispenser according to claim 1, characterized in that: The number of buffer components is four, and they are evenly distributed around the periphery of the electromagnetic latch (22).

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