Fire extinguishing bomb releasing mechanism

Abstract

The utility model relates to the technical field of fire extinguishing bomb releasing, and discloses a fire extinguishing bomb releasing mechanism which comprises a material barrel connected to an unmanned aerial vehicle frame, a flexible rope structure used for bearing a fire extinguishing bomb is arranged at an opening in the lower end of the material barrel, and at least one position of the edge of the flexible rope structure is fixed to the material barrel. At least two release assemblies are arranged on the material barrel, when the release assemblies are locked, the edge parts of the flexible rope structures are locked to the release assemblies, and when the release assemblies are released, the locked edge parts of the flexible rope structures are released; according to the utility model, through the flexible rope structure, the contact position with the warhead part of the fire extinguishing bomb is increased, and a plurality of stress points share the borne weight; furthermore, the flexible rope structure can be matched according to different shapes of the bullet parts, so that the use reliability is improved, and the use flexibility is relatively high.

Description

Technical Field

[0001] This utility model belongs to the field of drone fire extinguishing bomb delivery technology, and relates to a fire extinguishing bomb release mechanism. Background Technology

[0002] Currently, drones are often used to carry fire extinguishing bombs for aerial delivery. Utility model patent CN220786122U discloses a multi-rotor fire extinguishing bomb delivery drone. The drone's fuselage is fixedly equipped with one or more guide tubes for launching fire extinguishing bombs. A delivery baffle is located below the guide tubes, with one side of the baffle mounted on a landing gear. When locked in a horizontal position, the delivery baffle supports the fire extinguishing bombs; when unlocked and folded down, it is used for launching the bombs. However, when supporting the fire extinguishing bombs, the bomb's projectile makes point contact with the baffle, resulting in a small contact area. This means the center of the baffle bears the entire weight of the fire extinguishing bomb. During the loading process, with repeated use, the delivery baffle deforms and bends, reducing its reliability. Summary of the Invention

[0003] To address the aforementioned problems, this utility model proposes a fire extinguishing grenade release mechanism, which effectively solves the issues of deformation and bending of the throwing baffle and low reliability in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a fire extinguishing bomb release mechanism, including a material cylinder connected to the frame of a drone, a flexible rope structure for supporting the fire extinguishing bomb is provided at the lower opening of the material cylinder, at least one edge of the flexible rope structure is fixed to the material cylinder, and at least two release assemblies are provided on the material cylinder. When the release assembly is locked, the edge portion of the flexible rope structure is locked to the release assembly. When the release assembly is released, the locked edge portion of the flexible rope structure is released.

[0005] Furthermore, the flexible rope structure includes a main support plate and ropes connected to the main support plate in a cross shape. The main support plate supports the projectile of the fire extinguishing bomb. The ends of the ropes away from the main support plate are fixed to the material cylinder at two adjacent points, and the other two adjacent points of the ropes can extend to the corresponding release assembly positions, and be locked or released in cooperation with the release assembly.

[0006] Furthermore, the side of the main support plate facing the fire extinguishing bomb is curved and can fit into the warhead of the fire extinguishing bomb.

[0007] Furthermore, the rope is also connected to a secondary support plate that can fit into the warhead of the fire extinguishing bomb.

[0008] Furthermore, the main support plate includes a first plate and a second plate fixed to the side of the first plate away from the fire extinguishing bomb. Grooves are provided on the opposite sides of the first plate and the second plate, through which the rope passes and the first plate and the second plate can clamp the rope.

[0009] Furthermore, the release assembly includes two clamps arranged opposite to each other and rotatably connected to the material cylinder, a power source, and a protrusion connected to the output shaft of the power source. One end of the clamp is provided with a drive handle and the other end is provided with a clamp head. The protrusion is located in the middle of the drive handle of the clamp. A tension spring is connected between the drive handles of the two clamps. The power source drives the protrusion to rotate, which in turn drives the drive handle to drive the clamp head to close.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention increases the contact points with the projectile of the fire extinguishing bomb through a flexible rope structure, allowing multiple stress points to distribute the weight. Furthermore, the flexible rope structure can be adapted to different shapes of the projectile, improving reliability and providing high flexibility in use. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention;

[0013] Figure 2 This is a top view of the present invention;

[0014] Figure 3 This is a perspective view of the release assembly of this utility model;

[0015] Figure 4 This is a schematic diagram of the clamp body and the protrusion mating in the release assembly of this utility model.

[0016] In the diagram: 1. Material cylinder; 2. Flexible rope structure; 201. Main support plate; 202. Rope; 203. Secondary support plate; 2011. First plate; 2012. Second plate; 3. Release assembly; 301. Base plate; 302. Protrusion; 303. Clamping body; 304. Tension spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1 , Figure 3 As shown, this utility model discloses a fire extinguishing release mechanism, including a material cylinder 1 connected to the frame of a drone, a flexible rope structure 2 provided at the lower opening of the material cylinder 1, and at least two release assemblies 3 provided on the material cylinder 1.

[0019] In this embodiment, as Figure 3 and Figure 4 As shown, the release assembly 3 includes two clamps 303 rotatably connected to the material cylinder 1, a power source, and a protrusion 302 connected to the output shaft of the power source. The power source can be a motor or a servo motor. The protrusion 302 is elliptical. A base plate 301 is fixed to the outer wall of the material cylinder 1. The base plate 301 is fixed to the outer wall of the material cylinder 1 by screws. Two parallel clamping plates are fixed on the base plate 301. A connecting post is provided between the two clamping plates. The two clamping plates are connected to the base plate 301 by long bolts passing through the connecting post. The protrusion 302 and the two clamps 303 are located between the two clamping plates. Specifically, the middle of each of the two clamps 303 is rotatably connected to the clamping plates by a rotating shaft. The gap between the two clamping plates allows the protrusion 302 and the clamps 303 to rotate freely. The power source is installed on one of the clamping plates away from the material cylinder 1, and the output shaft passes through the clamping plate and is connected to the protrusion 302. 02. The clamp body 303 is connected with a drive handle at one end and a clamp head at the other end. Both drive handles are arc-shaped, and a protrusion 302 is located in the middle of the two drive handles. The two clamp heads are also arc-shaped. When the power source drives the protrusion 302 to rotate, the two ends of the protrusion 302 can slide along the inner side of the drive handle. When the protrusion 302 is horizontal, the two drive handles move away from each other and drive the two clamp heads to close. At this time, the edge of the flexible rope structure 2 is locked. A tension spring 304 is connected between the drive handles of the two clamp bodies 303 and provides a force for the two drive handles to move closer to each other. When the power source drives the protrusion 302 to tilt or be vertical, the tension spring 304 drives the two drive handles to move closer to each other, causing the clamp heads to move away from each other and open, and the edge of the flexible rope structure 2 is released. The release assembly 3 has a simple structure and a small overall structure, which is convenient for deployment on UAVs.

[0020] like Figure 1 and Figure 2 As shown, the flexible rope structure 2 includes a main support plate 201 and ropes 202 connected to the main support plate 201 in a cross shape. The ropes 202 can be made of steel wire rope. The main support plate 201 supports the head of the fire extinguishing bomb. The ends of the ropes 202 away from the main support plate 201 are fixed to the material cylinder 1 at two adjacent points. The other two adjacent points of the ropes 202 can extend to the corresponding release assembly 3 and be locked or released in cooperation with the release assembly 3.

[0021] Specifically, two ropes 202 can be provided in each of the two intersecting directions, and the ends of the two ropes 202 in each direction away from the main support plate 201 are integrally connected; a base plate 301 is provided on the outer wall of the material cylinder 1, and two parallel ear plates are fixed to the lower end of the base plate 301 by screws. The ear plates have through holes for the ends of the ropes 202 to pass through. The integral connection of the ends of the two ropes 202 can also be easily hooked onto the clamp head of the release assembly 3; in use, the side of the main support plate 201 facing the fire extinguishing bomb is arc-shaped and can fit against the warhead of the fire extinguishing bomb, increasing the contact area with the warhead of the fire extinguishing bomb; moreover, the combination of the flexible ropes 202 and the rigid main support plate 201 makes the flexible rope structure 2 and the rigid plate lighter in weight.

[0022] In this embodiment, the main support plate 201 includes a first plate 2011 and a second plate 2012 disposed on the side of the first plate 2011 opposite to the fire extinguishing bomb. The opposite sides of the first plate 2011 and the second plate 2012 are provided with grooves, through which the rope 202 passes and can be clamped by the first plate 2011 and the second plate 2012. Specifically, the first plate 2011 and the second plate 2012 are provided with mounting holes, and the first plate 2011 and the second plate 2012 can be fixed together by bolts and nuts. This structure is simple to use and also maintains a certain distance between the rope 202 and the fire extinguishing bomb, avoiding the rope 202 from contacting the surface of the fire extinguishing bomb and causing scratches.

[0023] In this embodiment, both ends of the rope 202 are connected to a secondary support plate 203 that can fit against the projectile of the fire extinguishing bomb. The secondary support plate 203 is also composed of two plates fixed together by bolts and nuts, which clamp the rope 202 and fix its position. The secondary support plate 203 increases the support position and area of ​​the flexible rope structure 2, improving the reliability of use. On the other hand, it can prevent the upper part of the rope 202 from contacting the fire extinguishing bomb, avoiding scratches.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fire extinguishing grenade release mechanism, characterized in that: The device includes a material cylinder connected to the frame of a drone. The lower opening of the material cylinder is provided with a flexible rope structure for supporting fire extinguishing bombs. At least one edge of the flexible rope structure is fixed to the material cylinder. At least two release assemblies are provided on the material cylinder. When the release assembly is locked, the edge portion of the flexible rope structure is locked to the release assembly. When the release assembly is released, the locked edge portion of the flexible rope structure is released.

2. The fire extinguishing grenade release mechanism according to claim 1, characterized in that: The flexible rope structure includes a main support plate and ropes connected to the main support plate in a cross shape. The main support plate supports the warhead of the fire extinguishing bomb. The ends of the ropes away from the main support plate are fixed to the material cylinder at two adjacent points, and the other two adjacent points of the ropes can extend to the corresponding release assembly positions, and be locked or released in cooperation with the release assembly.

3. The fire extinguishing grenade release mechanism according to claim 2, characterized in that: The side of the main support plate facing the fire extinguishing bomb is curved and can fit snugly against the warhead of the fire extinguishing bomb.

4. The fire extinguishing grenade release mechanism according to claim 2, characterized in that: The rope is also connected to a secondary support plate that can fit against the warhead of the fire extinguishing bomb.

5. The fire extinguishing grenade release mechanism according to claim 2, characterized in that: The main support plate includes a first plate and a second plate fixed to the side of the first plate away from the fire extinguishing bomb. The opposite sides of the first plate and the second plate are provided with grooves, through which the rope passes and the first plate and the second plate can clamp the rope.

6. The fire extinguishing grenade release mechanism according to claim 1, characterized in that: The release assembly includes two clamps arranged opposite to each other and rotatably connected to the material cylinder, a power source, and a protrusion connected to the output shaft of the power source. One end of the clamp is provided with a drive handle and the other end is provided with a clamp head. The protrusion is located in the middle of the drive handle of the clamp. A tension spring is connected between the drive handles of the two clamps. The power source drives the protrusion to rotate, which in turn drives the drive handle to drive the clamp head to close.

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